EP1529003A2 - Packaging machine and device for feeding a flexible tubular film - Google Patents
Packaging machine and device for feeding a flexible tubular filmInfo
- Publication number
- EP1529003A2 EP1529003A2 EP03755620A EP03755620A EP1529003A2 EP 1529003 A2 EP1529003 A2 EP 1529003A2 EP 03755620 A EP03755620 A EP 03755620A EP 03755620 A EP03755620 A EP 03755620A EP 1529003 A2 EP1529003 A2 EP 1529003A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- longitudinal guide
- longitudinal
- tubular film
- machine according
- gutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
- B65B9/14—Devices for distending tubes supplied in the flattened state
Definitions
- the present invention relates to a device for advancing a flexible tubular film and to a packaging machine comprising such a device.
- EP-A-1 053 939 and FR-A- 1 378 274 describe apparatuses for advancing a flexible tubular film which comprise a vertical core and rollers for carrying this core and advancing the tubular film arranged around from top to bottom this core in order to cover an object placed on a horizontal lower support.
- Such devices are however not suitable for the complete packaging of objects, in particular elongated objects of relatively long lengths.
- the object of the present invention is to improve the means used up to now for carrying out the operations of packaging objects, in particular with a view to making these operations simpler and more automatic and reducing production costs by increasing the yields.
- the present invention firstly has for its object and a packaging machine for wrapping objects in a flexible tubular film.
- this machine comprises a device for advancing said flexible tubular film comprising a longitudinal guide adapted to be longitudinally and completely engaged inside the tubular film, holding means adapted to carry said longitudinal guide and to allow passage or be traversed by the tubular film, and longitudinal drive means adapted to slide the tubular film longitudinally when the latter is threaded on the longitudinal guide.
- the machine according to the present invention may advantageously comprise means for receiving the objects to be packaged, adapted to constitute a reception zone extending longitudinally in the extension of said longitudinal guide, so that, during the advancement of the tubular film d 'Upstream downstream under the effect of the advancement device, the objects to be packaged engage longitudinally in the latter.
- said means for receiving the objects to be packaged comprise a gutter carried in cantilever, in its extension, by said longitudinal guide and adapted to be longitudinally and completely engaged inside the tubular film during the longitudinal advancement of the latter.
- said gutter preferably carries at least one longitudinal flap articulated longitudinally on one of its longitudinal edges, means being provided for operating this flap.
- said maneuvering means preferably comprise a spring means which acts to bring said flap above the gutter and actuation means to act on said flap against this spring means, these actuation means being retractable to allow said tubular film to pass.
- said maneuvering means are preferably placed upstream of the reception area of said longitudinal gutter.
- the machine preferably comprises retractable means for closing the tubular film which are arranged near the downstream end of said longitudinal gutter.
- said means for receiving the objects to be packaged comprise a gutter extending in the extension of said longitudinal guide and adapted to be longitudinally engaged inside the tubular film during the longitudinal advancement of this last, the downstream end of said gutter being carried by a carriage movable longitudinally to move said gutter between an advanced position in which its upstream end is placed coupled to said longitudinal guide and a retracted position in which its upstream end is placed at a distance from said guide longitudinal.
- the machine preferably comprises complementary reception means, placed below said reception zone for receiving the packages of objects packed in a portion of the tubular film during the movement of said gutter from its advanced position towards its remote position.
- the machine preferably comprises retractable gripping means suitable for gripping the packet of objects packaged between said longitudinal guide and the upstream end of said gutter when the latter is distant downstream from its advanced position.
- said longitudinal guide and the upstream end of said gutter preferably comprise complementary means of longitudinal coupling.
- the machine preferably comprises retractable means for closing the tubular film, which are arranged near the downstream end of said longitudinal guide and the upstream end of said gutter when the latter is far from its advanced position, and retractable means for closing the film tubular which are arranged downstream of the downstream end of said receiving zone.
- said means for receiving the objects to be packaged comprise groups of rollers spaced apart longitudinally, each group of rollers comprising at least two inclined rollers forming an N open upwards.
- the groups of rollers are preferably carried by mobile means making it possible to separate them.
- the machine preferably comprises means for rotating said rollers in the direction of advancement of the tubular film.
- the machine according to the present invention can advantageously comprise gripping means suitable for gripping the downstream end of the tubular film and objects and means for longitudinally moving these gripping means.
- the machine preferably comprises retractable means for closing the tubular film, which are arranged between said longitudinal guide and the first group of rollers, and retractable means for closing the tubular film which are arranged downstream of the downstream end of the reception area.
- said longitudinal guide preferably comprises a portion of downstream gutter extending longitudinally.
- said gutter preferably carries at least one longitudinal flap articulated longitudinally on one of its longitudinal edges, means being provided for operating this flap.
- said maneuvering means preferably comprise a spring means which acts to bring said flap above the gutter and actuation means to act on said flap against this spring means, these actuation means being retractable to allow said tubular film to pass.
- the machine according to the present invention preferably comprises means for cutting the tubular film, which are arranged upstream of said receiving area and downstream of said holding and driving means.
- said means for cutting the tubular film preferably comprises a retractable rotary knife.
- said longitudinal drive means can advantageously comprise external action means acting on the external face of the tubular film and internal reaction means acting on the internal face of the tubular film and provided on the longitudinal guide.
- said holding means can advantageously comprise at least one external support means which cooperates with at least one internal support means carried by said longitudinal guide, between which said tubular film passes.
- said external support means and said internal support means may advantageously comprise at least one roller and one wheel respectively, arranged so that the tubular film passes and is caught between this roller and this wheel.
- said external support means and said internal support means may advantageously comprise respectively a pair of rollers and a wheel arranged so that the tubular film passes and is caught on the one hand this wheel and secondly the rollers of this pair of rollers.
- said roller and said wheel may advantageously comprise respectively a peripheral groove and an annular shoulder engaged with one in one.
- said peripheral groove and said annular shoulder preferably have axially spaced annular bearing surfaces.
- said wheel is preferably placed outside the tubular film and is connected to rotation actuation means so as to constitute said drive means.
- said drive means preferably comprise at least one rotary drive member such as a drive wheel or an endless drive belt, which acts on the face outside of the tubular film and which is connected to a rotary drive motor.
- said drive means preferably comprise at least one idler rotary member such as an idler roller, carried by said longitudinal guide, the tubular film passing between said rotary member and this idler rotary member.
- said longitudinal guide preferably comprises at least one bearing surface located opposite said rotary drive member.
- said holding means can advantageously comprise at least one lower external support means placed below said longitudinal guide and at least one upper external support means placed above said longitudinal guide, which cooperate respectively with internal support means carried by said longitudinal guide.
- said lower external support means and said upper external support means are preferably offset longitudinally to said longitudinal guide.
- said holding means can advantageously comprise at least one lower external support means placed below said longitudinal guide and at least one upper external support means placed above said longitudinal guide and opposite to said lower means external support, which cooperate respectively with internal support means carried by said longitudinal guide, as well as at least one external support means offset longitudinally to said longitudinal guide, which cooperates with at least one internal support means carried by this longitudinal guide.
- said holding means preferably comprise pairs of lower external support means placed below said longitudinal guide and offset transversely to form an N, these lower external support means respectively cooperating with means of internal support carried by said longitudinal guide and offset transversely to form a corresponding N.
- said holding means preferably comprise pairs of upper external support means placed above said longitudinal guide and offset transversely to form an N, these upper external support means respectively cooperating with means of internal support carried by said longitudinal guide and offset transversely to form a corresponding N.
- said holding means preferably comprise at least two opposite rear inner rollers and two opposite opposite inner rollers, carried by said longitudinal guide, as well as at least two opposite rear external wheels, arranged on either side. on the other of the longitudinal guide, and two opposite outer front wheels, arranged on either side of the longitudinal guide, said rollers and said wheels respectively comprising an annular groove and an annular shoulder engaged one inside the other.
- said longitudinal guide is preferably substantially tubular, its end engaging first in the tubular film being preferably pointed.
- said longitudinal guide has a substantially oval section.
- the present invention also relates to a device for advancing a flexible tubular film.
- this advancement device can advantageously comprise adjustment means suitable for adjusting the relative transverse positions of these opposite longitudinal guide parts, said means for holding said longitudinal guide and said means for longitudinally driving the tubular film.
- said adjustment means comprise return means urging said opposite longitudinal parts of said longitudinal guide in the directions which separate them and means for transversely moving said holding and driving means.
- said longitudinal guide comprises a central longitudinal beam and articulated arms connecting this beam and said longitudinal guide parts, said means for adjusting the spacing between these parts acting between this beam and these articulated arms.
- said longitudinal guide parts preferably comprise longitudinal supports which carry longitudinal envelope portions.
- the machine according to the present invention can advantageously comprise means for transverse adjustment of said receiving means.
- FIG. 1 shows a general perspective view of a packaging machine according to the invention
- FIG. 2 shows a perspective view of a film advancement device
- FIG. 3 shows a longitudinal section of the advancement device of Figure 2;
- FIG. 4 shows a cross section of the advancement device of Figure 2, according to IN-IN of Figure 3;
- FIG. 5 shows a cross section of the advancement device of Figure 2, according to N-N of Figure 3;
- FIG. 6 shows a longitudinal section of a support means and holding the advancement device of Figure 2;
- FIG. 7 shows an end view of a means of cutting or cutting the tubular film, in a retracted position
- FIG. 8 shows an end view of the cutting or cutting means of Figure 7, in an active position
- FIG. 9 shows a longitudinal section of the cutting or cutting means of Figure 7;
- FIG. 10 shows a cross section of a shutter control means carried by a gutter of the machine of Figure 1, in the deployed position;
- FIG. 11 shows a cross section of the shutter control means of Figure 10, in the folded position
- FIG. 12 shows a cross section of said gutter whose flaps are deployed
- - Figure 13 shows a cross section of said gutter whose flaps are folded down;
- - Figure 14 shows a top view of another film advancement device according to the invention;
- FIG. 15 shows a cross section along XN-XN of the advancement device of Figure 14;
- FIG. 16 shows a side view of another film advancement device according to the invention.
- FIG. 17 shows a cross section along XNII-XVII of the advancement device of Figure 16;
- FIG. 18 shows a longitudinal and vertical section of another film advancement device according to the invention
- - Figure 19 shows a cross section along IXX-IXX of the advancement device of Figure 18;
- FIG. 20 to 27 show a side view of another packaging machine according to the present invention, in an initial position, in successive operational positions;
- FIG. 28 shows an intermediate cross section of the machine of Figures 20 to 27;
- Figures 29 and 30 show a cross section of a lower part of the machine.
- Figures 20 to 27; - Figures 31, 34, 35, 37, and 40 to 44 show a side view of another packaging machine according to the present invention, in successive operational positions;
- Figures 32, 35, 38 and 39 show intermediate cross sections of the machine of Figures 31, 34, 35, 37, and 40 to 44, in a place of its length and in successive operational positions;
- Figures 33, 36 and 39 show intermediate cross sections of the machine of Figures 31, 34, 35, 37, and 40 to 44, at another location along its length and in successive operational positions;
- FIG. 46 shows a horizontal section of a device for advancing a tubular film, in the reduced position
- FIG. 47 shows a cross section of Figure 46
- - Figure 48 shows a horizontal section of the advancement device of Figure 46, in the enlarged position
- FIG. 49 represents a cross section of FIG. 48.
- a packaging machine 1 for elongated objects 2 has been shown so as to constitute a package 3 in a portion 4a of a flexible tubular film 4, for example made of plastic, from a reel 5 in which the tubular film 4 is wound flat.
- the machine 1 comprises longitudinally, in its upstream part, a device 6 for advancing the tubular film 4 and, in its downstream part, a receiving gutter 7 which defines a longitudinal zone for receiving objects to pack 2.
- the advancement device 6 comprises a longitudinal guide 8 which comprises a longitudinal inner beam 9 around which is fixed a longitudinal casing 10, possibly in several pieces, of section oval, the largest width of which is arranged horizontally, the rear or upstream end portion 10a of the envelope 10 being formed so as to be pointed and with a rounded end.
- the advancement device .6 comprises two rear upper means 11 and 12 arranged in the rear zone of its part of oval section and offset transversely to each other, on either side of the axis longitudinal, and, offset longitudinally forwards, two lower front means 13 and 14 arranged in the front zone of its oval part and offset transversely with respect to each other, on either side of the axis longitudinal.
- Each of the above support and holding means comprises two internal idle support and reaction rollers 15a and 15b with parallel axes, which are carried by the longitudinal beam 9 of the longitudinal guide 8, which are offset longitudinally and which slightly protrude through an opening 16 formed in the casing 10, as well as an external support and action wheel 17 with an axis parallel to the axes of the rollers 15a and 15b.
- the rollers 15a and 15b and the wheel 17 are arranged so that the cylindrical periphery of this wheel 17 bears both on the cylindrical periphery of the roller 15a and the cylindrical periphery of the roller 15b .
- the wheel 17 is carried by the axis of a geared motor 18 for driving, preferably with an asynchronous motor, this geared motor being fixed to the frame 19 of the machine.
- the rear support means 11 and 12 are arranged relative to each other so that the axes respectively of their rollers 15a and 15b and their wheels 17 are arranged so as to form an opening angle N for example equal to 90 ° and the point of which is directed upwards, the supports of their wheels 17 on their rollers 15a and 15b being consequently at 45 ° relative to a horizontal plane.
- the lower front support means 13 and 14 are arranged with respect to each other so that the axes respectively of their rollers 15a and 15b and their wheels 17 are arranged so as to form an N of angle d 'opening for example equal to 90 ° and the tip of which is directed downwards, the supports of their wheels 17 on their rollers 15a and 15b being consequently at 45 ° relative to a horizontal plane.
- the packaging machine 1 further comprises a longitudinal gutter 7 which extends the envelope 10 of the " longitudinal guide 8" forward.
- This gutter 7 has a short rear part 20 of oval section which corresponds to the downstream section of the longitudinal guide 8.
- This rear part 20 contains an intermediate part 21 which is engaged longitudinally on a projecting front part 22, of square section, of the beam 9 of the longitudinal guide 8. The gutter 7 is thus fitted at the rear and cantilevered towards the front.
- the gutter 7 In front of its rear part 21, the gutter 7 has a longitudinal part or zone 23 for receiving the objects 2 to be packaged, the cross section of which corresponds substantially to the lower half of the casing 10 of the longitudinal guide 9.
- the assembly formed by the longitudinal guide 8 and the gutter 7 has a center of gravity situated in front of the front support and holding means 13 and 14 so that this assembly is supported , is held longitudinally and is prevented from rotating along its longitudinal axis by the fact that, by leveraging, the rollers 15a and 15b of the lower front means 13 and 14 for support and holding are respectively pressed down on their wheel outer 17 and the rollers 15a and 15b of the upper rear means 11 and 12 for support and holding are respectively supported on the top on their outer wheel 17.
- annular groove 24 In the junction zone between the longitudinal guide 8 and the gutter 7 is provided an annular groove 24.
- the packaging machine 1 further comprises a cutting means 25 which comprises a ring 26 which remotely surrounds the aforementioned junction zone and which carries a knife 27 movable in a radial plane, this knife 27 having an inner cutting end 28 and an outer end 29 which carries a roller 30.
- the crown 26 is connected to conventional rotation drive means not shown
- the knife 27 is subjected to a spring 31 acting so as to engage its cutting end 28 in the annular groove 24 as shown in FIG. 8.
- a cam 32 is capable of acting on the roller 30 of the knife 27 under the effect of a jack 33 so as to retract or spread outwards the cutting end 28 of the knife 27.
- the packaging machine 1 comprises, in front of the front end of the gutter 7, heat welding means 33 of which the retractable jaws 34 and 35 have only been shown.
- the packaging machine which has just been described can operate and be used in the following manner.
- the tubular film wound flat lay from the reel 5 is manually unwound and passed over a roller with transverse axis 5a placed in alignment with rear and away from the longitudinal guide 8.
- the rear end 10a of the longitudinal guide 8 is longitudinally engaged in the tubular film 4 and the latter is slid around and on the longitudinal guide 8 as far as the upper rear support means and holding 11 and 12.
- the tubular film 4 advancing, it then engages between the outer wheels 17 and the inner rollers 15a and 15b of the lower front support and holding means 13 and 14 and is also driven forward by the wheels 17 of the latter by their geared motors.
- the tubular film 4 passes through support, holding and driving means 11, 12, 13 and 14, their rollers 15a and 15b being in abutment against its inner face and the wheels 17 being in abutment against its face exterior.
- the gearmotors 18 are stopped to immobilize it.
- the packaging machine is then ready.
- objects 2 to be packaged are placed longitudinally in the gutter 7, so that these objects protrude at the front of the gutter 7.
- the motor-reducers 18 of the support and holding means 11, 12, 13 and 14 so as to advance the tubular film 4.
- the latter slides longitudinally forward or downstream around the longitudinal guide 8 and the gutter 7 containing the objects to be packaged 2.
- the gearmotors 18 are stopped and these welding means 33 are activated so as to crush and thermally weld the 'front end of the tubular film 4.
- the cutting means 25 are actuated so that the knife 27, by engaging in the annular groove 24, passes through and, by rotation of the crown 26, cuts circumferentially the tubular film 4 so as to obtain a portion 4a of tubular film 4 separated from the rest of the reel 5.
- the longitudinal edges of the portion 23 of the gutter 7 can be equipped with longitudinal flaps 36 and 37 respectively articulated on these edges by longitudinal axes 38 and 39.
- the flaps 36 and 37 have, at their rear end, triangular transverse flanks 40 and 41 which are provided on one side with pins 42 and 43 and on the other side with rollers 44 and 45 with longitudinal axes. Between the pins 42 and 43 is mounted a transverse spring 46 which tends to fold the flaps 36 and 37 towards each other above the gutter 7.
- the gutter 7 has an opening 50 allowing the cam 49 of the cylinder 47 to penetrate from below into the gutter 7 so that the sides of the cam 49 come into contact with the rollers 44 and 45 of the flaps 36 and 37.
- FIG 1 1 when the cam 49 of the cylinder 47 is in its lowered retracted position, it is located below and away from the gutter 7. Under the effect of the spring 46, the flaps 36 and 37 are folded above of the gutter 78. Preferably, in this folded position, the flaps 36 and 37 have a section corresponding to the upper half of the rear part 20 of the gutter 7 or of the casing 10 of the longitudinal guide 8.
- the cam 49 rises, meets the rollers 44 and 45, spreads them apart and causes the flaps 36 and 37 to open.
- the flaps 36 and 37 are preferably in a deployed position such that the longitudinal edges of these flaps, opposite to the longitudinal axes 38 and 39, are laterally outside these axes.
- the flaps 36 and 37 can be used as follows. Before supplying the gutter 7 with objects 2 to be packaged, the actuator 47 is actuated so as to bring the cam 49 to its high position and place the flaps 36 and 37 in their deployed position. As shown in FIG. 12, the gutter 7 is supplied with products 2 to be packaged, the flaps 36 and 37 constituting lateral deflectors facilitating the bringing of the products 2 to be packaged into the gutter 7.
- the actuator 47 is actuated to bring the cam 49 to its low retracted position.
- the flaps 36 and 37 come to their folded position and compact the objects 2 to be packaged, the objects 2 to be packaged thus being confined in a tubular space formed by the gutter 7 and its flaps 36 and 37 folded.
- the flaps 36 and 37 also make it possible to facilitate the advancement of the tubular film 4 around the gutter 7 since the latter slides over the folded flaps 36 and 37 and prevents objects 2 to be packaged from hindering this advancement.
- the advancement device 6 described above could comprise means for supporting and / or holding complementary to the longitudinal guide 8.
- the advancement device 6 could comprise, in the area of the rear support and support means 11 and 12, a rear rear support and support means comprising for example an inner roller with transverse axis, support or of reaction, carried by the beam 9 and an outer wheel with transverse axis, of support or action, adapted to come to bear on this roller and allowing the tubular film 4 to pass between them.
- a complementary means of support and holding could be constructed as the support and holding means 11, 12, 13 and 14, and include two inner rollers.
- this advancement device 51 comprises a longitudinal guide 52 which. comprises a longitudinal inner beam 53 surrounded by a longitudinal envelope 54 of oval section and pointed backwards.
- the advancement device 51 comprises two opposite rear means 55 and 56 and two opposite front means 57 and 58, arranged laterally to the longitudinal guide and designed to support and hold the longitudinal guide 52 and to drive the tubular film 4 forward.
- Each of the support and holding means 55 to 58 comprises an idler internal support and reaction roller 59 with a vertical axis carried by the beam 53 and an external support and action wheel 60 with a vertical axis carried by the axis of a gear motor 61 fixed to the frame 62 of the packaging machine.
- the outer wheel 60 has a peripheral groove 63 on the edges of which are annular shoulders 64 and 65 radially projecting, these shoulders 64 and 65 forming an N open towards the outside.
- the roller 59 has a peripheral shoulder 66 projecting from an N-shaped section, the point of which is directed outwards.
- the roller 59 and the wheel 60 are coupled through a lateral opening 54a of the casing 54 so that the peripheral shoulder 66 of the roller 59 penetrates into the groove 63 of the outer wheel 60, the opposite sides of the shoulder 66 being respectively supported on the sides of the shoulders 64 and 65 by axially spaced surfaces.
- the rear support and holding means 55 and 56 are arranged so that their inner rollers 59 are in front with respect to their outer wheel 60 and the front support and holding means 57 and 58 are arranged so that their inner rollers 59 are behind their outer wheel 60.
- the outer wheels 60 of the support and holding means 56 to 58 determine a rectangle in the corners of which are taken the inner rollers 59 so that the guide longitudinal 52 is suspended and held in all directions and cannot rotate along its longitudinal axis.
- the tubular film 4 when the tubular film 4 is engaged on the longitudinal guide 52, it passes between the inner rollers 59 and the outer wheels 60 of the support and holding means 55 to 58 and can be driven forward by the outer wheels 60 under the effect of the geared motors 61.
- the rear support and holding means 55 and 56 and / or the front support and holding means 57 and 58 could comprise two internal rollers cooperating with the wheel 60, these two rollers being offset longitudinally.
- 67 comprises a longitudinal guide 68 which comprises an inner longitudinal beam 69 and a longitudinal envelope 70 of oval section and pointed backwards.
- This advancement device 67 further comprises two upper support and drive means 71 and 72 and two lower support and drive means 73 and 74.
- Each of the support and drive means 71 to 74 comprises two pulleys 75 and 76 with parallel axes offset longitudinally and on which is installed an endless band 77 extending longitudinally and one action of which is supported on the surface outside of the envelope 70, along a longitudinal reaction zone, one of these pulleys being carried by the axis of a geared motor for rotational drive 78 carried by a frame 67a.
- the support and drive means 71 to 74 are arranged so that the strands of their endless band 77 constitute, in cross section, a rhombus which circumscribes the longitudinal envelope 70.
- the longitudinal guide 68 is carried and cannot rotate along its longitudinal axis.
- the advancement device 67 comprises two opposite means 79 and 80 provided respectively above and below the longitudinal guide 68 and placed behind the support and drive means 71 to 74
- Each of the holding means 79 and 80 comprises two idle rollers 81 and 82 with horizontal and transverse axes, offset longitudinally and carried by the longitudinal beam 69 of the longitudinal guide 68, as well as an outer wheel 83 with vertical axis which rests on the rollers 82 and 83 through an opening 84 formed in the envelope 70.
- the tubular film 4 engaged around the longitudinal guide 68 passes longitudinally through the holding means 79 and 80, passing between their inner rollers 81 and 82 and their outer wheel 83 and passing between the belts drive 77 of the support and drive means 71 to 74 the longitudinal envelope 70.
- the belts 77 of the latter drive forward the tubular film 4 which slides longitudinally forward on the casing 70 of the longitudinal guide 68
- the adhesion of the belts 77 on the outside face of the tubular film 4 must be greater than the friction of the inside face of the tubular film 4 on the outside surface of the envelope 70.
- some of the support and drive means 71 -74 with belts could be replaced by means with driven wheels bearing on the outside face of the tubular film 4.
- this advancement device 85 comprises a longitudinal guide 86 which comprises a longitudinal inner beam 87 surrounded by a longitudinal envelope 88 of oval section and pointed backwards.
- This advancement device 85 comprises a lower rear support and holding means 89, a rear upper support and holding means 90 and a lower front support and holding means 89a, longitudinally offset from the former.
- Each of the means 89 and 90 above comprises two internal idle support and reaction rollers 91 and 92, with transverse axes offset longitudinally and carried by the longitudinal beam 87 and an external support and action wheel 93 with axis transverse, carried by the end of the drive shaft of a geared motor 94 fixed to the frame 95 of the machine.
- the outer wheel 93 has a peripheral groove 96 on the edges of which are annular shoulders 97 and 98 radially projecting, these shoulders 97 and 98 forming an N open towards the outside.
- the rollers 91 and 92 respectively have a peripheral shoulder 99 projecting in N section, the tip of which is directed outwards.
- the rollers 91 and 92 are coupled to the wheel 93 through an opening 100 formed in the casing 88 so that the peripheral shoulder 99 of the rollers 91 and 92 penetrates into the groove 96 of the wheel
- the front support and holding means 89a differs from the support and holding means 90 by the fact that it only comprises an internal support and reaction roller 101 and an external support and action wheel 102, respectively with peripheral grooves and shoulders coupled through an opening 103 of the longitudinal casing 88, the outer wheel 102 being carried by the axis of a drive gear motor. 94.
- This plea 89a could also include two inner rollers.
- the support and holding means 89, 90 and 89a are arranged so that the median radial planes of their rollers 91 and 92 and of their wheel 93 are located in the longitudinal and vertical plane of symmetry or median of the longitudinal guide 86, the lower support and holding means 89 being placed symmetrically opposite the upper support and holding means 90 and the lower support and holding means 89a being shifted forward .
- the longitudinal guide 86 is suspended and held in all directions and cannot rotate along its longitudinal axis, its front part being only carried from below by the outer wheel 102 of the front support and holding means 89a.
- an upper front support and holding means could also be provided above the longitudinal guide 86, for example symmetrically to the lower front support and holding means 89a.
- the tubular film 4 when the tubular film 4 is engaged on the longitudinal guide 86, it passes between the inner rollers 91, 92 and 101 and the outer wheels 93 and 102 respectively of the support and holding means 89, 90 and 89a and can be driven forward under the effect of the geared motors 94 connected respectively to the outer wheels 93 and 102.
- rollers and wheels may have an annular peripheral ring, for example made of rubber or another adherent and / or slightly elastically compressible material.
- the packaging machine 200 comprises a advancement device 201, the structure of which can correspond to any of the advancement devices previously described, with the aim of advancing a tubular film 202 stored in a reel 203.
- the advancement device 201 comprises a longitudinal guide 204 around which the tubular film can advance longitudinally.
- the envelope of this longitudinal guide 204 is extended forward by a portion of longitudinal gutter 205.
- the packaging machine 200 has circular cutting means 206 corresponding to the cutting means described above.
- the packaging machine 200 further comprises a longitudinal gutter 207 which extends longitudinally to the advancement device 201 and the downstream part of which is fixed on a support 208.
- the upper part of this support 208 is slidably mounted on a longitudinal slide 209.
- the support 208 and the gutter 209 have complementary means allowing the longitudinal displacement of the support 208 and consequently of the gutter 207.
- 207 has a cylindrical part 207a.
- the support 208 carries a retractable finger 210, connected to drive means known per se, arranged so that it can come to bear on the cylindrical part 207a of the gutter 207 and be removed therefrom.
- the packaging machine 200 has upstream heat welding means 211 corresponding to those described above, of which only the retractable jaws are shown.
- the packaging machine 200 has holding members constituting a clamp 212 whose jaws are retractable and actuable by means known per se.
- the welding means 21 1 and the clamp 212 could be coupled.
- the packaging machine 200 Downstream of the retaining member 212, the packaging machine 200 comprises a complementary complementary receiving gutter 213 which extends longitudinally below and at a short distance from the displacement zone of the gutter 207.
- This gutter is pivotally mounted on a longitudinal axis 213a connected to drive means known per se and adapted so that it can occupy a horizontal position visible in FIG. 29 and a tilted position visible in FIG. 30.
- the packaging machine 200 Downstream of the lower complementary gutter 213, the packaging machine 200 comprises downstream welding means 216, of which only the retractable jaws are shown.
- the packaging machine 200 can operate in the following manner.
- the retaining finger 210 is in its separated position.
- the gutter portion 205 and the gutter 207 then constitute a longitudinal zone 214 for receiving elongated objects to be packaged 215.
- Objects to be packaged 215 are deposited, for example automatically using suitable means, longitudinally in this longitudinal zone of reception 214, that is to say in the gutter 207, taking care that the upstream end portion of the objects 215 extends in the gutter portion 205.
- the following operation consists in activating the advancement device 201 so as to advance downstream the tubular film 202, around the gutter portion 205 and the gutter 207, passing over the objects 215 deposited, this until that the tubular film 202 reaches the downstream end of the gutter 207 and envelops its cylindrical end 207a.
- the following operation consists in operating the retaining finger 210 so that it comes to pinch the downstream part of the tubular film 200 between its end and the cylindrical part 207a of the gutter 207.
- the circular cutting means 206 are activated, so as to separate the downstream portion 202a from the tubular film 202 containing the objects 215.
- the following operation consists in moving the support 208 downstream to drive the gutter 207 carrying the objects 215 and the portion of tubular film 202a held by the finger 210, until the portion of film 202a is extracted from the gutter 205 and the free upstream end of the gutter 207 is placed just downstream of the clamp 212, the gutter 207 then being in an intermediate longitudinal position.
- the following operation consists in activating the upstream welding means 21 1, so as to crush and thermally weld the upstream end of the portion of tubular film 202a, and to raise the finger 210.
- the following operation consists in activating the clamp 212 so as to clamp the upstream part of the tubular film portion 202a and the upstream part of the objects 215 that it contains.
- the following operation consists in moving the support 208 downstream to move the gutter 207 downstream, until this gutter 207 is completely extracted from the portion of tubular film 202a and reaches a remote position.
- the portion of tubular film 202a and the objects 215 which it contains are deposited longitudinally on the lower complementary receiving gutter 213, progressively.
- the following operation consists in activating the downstream welding means 216 so as to crush and thermally weld the downstream end of the portion of tubular film 202a.
- the following operation consists in pivoting the lower complementary gutter 213 around its longitudinal axis 213a so as to evacuate by gravity the package 217 obtained.
- FIGs 31 to 45 we will now describe another packaging machine 300 contituée as follows.
- this packaging machine 300 comprises an advancement device 301 for advancing a tubular film 302 stored in a reel 303, the advancement device 301 comprising a longitudinal guide 304 provided at its upstream part with a gutter portion 305 and circumferential cutting means 306 being provided upstream of this gutter portion.
- the packaging machine 300 comprises, downstream of the advancement device 301, a multiplicity of reception groups 307, in the example three in number, spaced longitudinally and comprising respectively two rollers 308 and 309 carried by supports 310 and 311 respectively mounted on runners 312 and 313, arranged so that the rollers 308 and 309 are arranged at 90 ° relative to each other so as to constitute an N open upwards and that the runners 312 and 313 are arranged at 90 ° relative to each other by forming an N open downwards.
- a multiplicity of reception groups 307 in the example three in number, spaced longitudinally and comprising respectively two rollers 308 and 309 carried by supports 310 and 311 respectively mounted on runners 312 and 313, arranged so that the rollers 308 and 309 are arranged at 90 ° relative to each other so as to constitute an N open upwards and that the runners 312 and 313 are arranged at 90 ° relative to each other by forming an N open downwards.
- the supports 310 and 311 carry motors 308a and 309a for driving the rollers 308 and 30 in rotation.
- the supports 310 and 31 1 and the slides 312 and 313 are equipped with complementary drive means such as the rollers 308 and 309 are movable simultaneously between a raised or raised position in which their lower end portions extend close to each other, so that the rollers 308 and 309 of the reception groups 307 define a reception zone 314 s 'extending longitudinally opposite and downstream of the advancement device 301, and a low position in which they are lowered and spaced from each other.
- the packaging machine 300 further comprises, downstream of the reception groups 307, a support 315 the upper part of which is mounted on a longitudinal slide 316 and which carries a clamp 317 and welding means 318, the jaws of the clamp 317 and those of the welding means 318 being coupled so as to be actuated simultaneously.
- the gutter portion 215 is equipped with two longitudinal flaps 319 articulated on its longitudinal edges 320, these flaps 319 being maneuverable between an open position and a folded position by means corresponding for example to those described with reference to FIGS. 10 and 11.
- the packaging machine 300 described above can operate in the following manner.
- the rollers 308 and 309 of the reception groups 307 are in their high position and define the longitudinal reception zone 314, the flaps 319 carried by the gutter portion 305 are open , the support 315 is in its upstream position, and the clamp 317 and the welding means 318 being open.
- the advancement device 301 is activated so as to advance the tubular film 302 downstream.
- the tubular film 302 envelops the objects 321.
- its rollers 308 and 309 are moved downwards so as to separate them laterally from the objects 321 to allow the tubular film 302 to pass.
- the same operations are carried out on the third reception group 307, and so on for the following reception groups, the number of reception groups 307 depending on the length of the objects 321 and the spacing between them depending the rigidity of these objects.
- the circular cutting means 305 are actuated so as to separate the advanced portion 302a from the tubular film 302 and the clamp 317 is actuated so that it takes between its jaws the portion of tubular film 302a and the portion of downstream end of the objects 321 which it contains and so that the downstream welding means 318 press and thermally weld the downstream end of the portion of tubular film 302a, downstream from the end of the objects 321.
- the following operation consists in moving the support 315 downstream and in rotating the rollers 308 and 309, so that the portion of tubular film 302a and the longitudinal objects 321 which it contains moves to a remote position in which the upstream end of the objects 321 have just protruded from the upstream welding means 322.
- the upstream welding means 322 are actuated so as to press and thermally weld the upstream end of the portion of tubular film 302a.
- a packet 323 is then obtained containing longitudinal objects 321 in the portion of tubular film 302a.
- rollers 308 and 309 of the receiving groups 307 are moved downwards so as to release a vertical space in which the packet 323 is evacuated by gravity.
- This advancement device 400 comprises a longitudinal guide 401 which comprises a longitudinal central beam 402, of rectangular section placed vertically.
- the beam 402 carries laterally, on either side, front gussets 403 and 404 and rear gussets 405 and 406 on which are respectively mounted front arms 407 and 408 and rear arms 409 and 410, via d 'front vertical axes 412 and 413 and rear vertical axes 414 and 415.
- the longitudinal guide 401 further comprises longitudinal supports 416 and 417 which are elongated on either side of the central beam 402 and which are respectively mounted on the free ends of the arms 407 and 409 by means of vertical axes 418 and 419 and on the free end of the arms 408 and 410 by means of vertical axes 420 and 421.
- the vertical axes 412, 414, 418 and 419 determine a horizontally deformable parallelogram making it possible to vary the distance between the central beam 42 and the longitudinal support 416 and, on the other hand, the vertical axes 413, 415, 420 and 421 define a deformable parallelogram making it possible to vary the difference between the central beam 402 and the longitudinal support 417.
- the front arms 407 and 408 have teeth which are concentric with the axes 412 and 413 and which engage with racks arranged on either side. on the other on a front slide 422 disposed in a longitudinal passage 423 formed through the central beam 402.
- the rear arms 409 and 410 have teeth centered on axes 414 and 415 and engaged with racks provided on either side of a rear slide 424 disposed in a longitudinal passage 425 formed through the beam central 402.
- the longitudinal supports 416 and 417 are coupled so as to move simultaneously while approaching or moving away from the central beam 402, at the same time as the slides 422 and 424 move longitudinally in the passages 423 and 424 in the same meaning.
- the slides 423 and 424 are stressed respectively by springs 426 and 427 which are arranged in the passages 423 and 425 of the central beam 42 so as to move them longitudinally in the direction which separates the longitudinal supports 416 and 417 from the central beam
- the longitudinal supports 416 and 417 respectively carry four inner trains 428 and 429 of two rollers each, offset two by two horizontally and arranged two by two at
- the supports 416 and 417 carry longitudinal envelope portions 430 and 431, spaced apart, such that the longitudinal guide 401 has a substantially oval section whose section varies as a function of the lateral position of the longitudinal supports 416 and 417 relative to the longitudinal beam 402.
- the advancement device 400 comprises on the one hand four external rollers 432 bearing against the rollers of the trains 428 and four external rollers 434 bearing against the rollers of trains 429.
- the four rollers 432 and the four rollers 434 are respectively carried by rotary drive blocks 435 and 436 which are fixed on slides 437 and 438 mounted on fixed transverse bars "439.
- the slides 437 and 438 are coupled to a transverse adjustment screw 440 which has an annular shoulder 441 engaged in a groove 442 of a chassis portion 443 in order to immobilize it in the direction of its axis.
- This screw 440 has threads 444 and 445 with inverted pitch engaged with the slides 437 and 438, the screw 440 carrying at one of its ends a handwheel 446.
- the front parts of the envelope portions 430 and 431 carry combs 447 and 448 which have transverse teeth 449 and 450 which are capable of penetrating more or less between each other when the longitudinal envelope portions 430 and 431 approach or move away, so as to determine a gutter or a portion of gutter of variable section, in the extension of the oval section mentioned above.
- the advancement device 400 described with reference to FIGS. 46 to 49 could just as easily include any of the holding and driving means described above and could also be associated with any means suitable for carrying any object to be introduced. in a portion of tubular film.
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- Containers And Plastic Fillers For Packaging (AREA)
Abstract
The invention concerns a packaging machine comprising a device for feeding a flexible tubular film, including a longitudinal guide (8) adapted to be longitudinally and completely engaged inside the tubular film (4), retaining means (11-14) adapted to bear said longitudinal guide and to allow through or to be traversed by the tubular film, and longitudinal driving means adapted to cause the tubular film to slide longitudinally when the latter is slipped onto the longitudinal guide, and longitudinal means (7) for receiving objects (2) to be packaged.
Description
DISPOSITIF D'AVANCEMENT D'UN FILM TUBULAIRE SOUPLE ET MACHINE D'EMBALLAGE DEVICE FOR ADVANCING A FLEXIBLE TUBULAR FILM AND PACKAGING MACHINE
La présente invention concerne un dispositif d'avancement d'un film tubulaire souple et une machine d'emballage comprenant un tel dispositif.The present invention relates to a device for advancing a flexible tubular film and to a packaging machine comprising such a device.
Pour constituer un paquet en particulier d'objets allongés tels que des profilés métalliques, en bois ou en matière plastique, de petites ou de moyennes sections et de longueurs pouvant être comprises entre par exemple un mètre et trois mètres, on rassemble manuellement ces morceaux pour qu'ils constituent un paquet sensiblement cylindrique et on entoure ce paquet à l'aide de bandes de rouleaux adhésifs en assurant un certain serrage, éventuellment en ayant enrouler préalablement un film souple autour du paquet. Une telle manière de procéder est fastidieuse, longue et coûteuse.To constitute a package in particular of elongated objects such as metal, wooden or plastic profiles, of small or medium sections and lengths which can be between for example one meter and three meters, these pieces are manually assembled to that they constitute a substantially cylindrical packet and this packet is surrounded with the aid of strips of adhesive rollers ensuring a certain tightening, possibly by having previously wound a flexible film around the packet. Such a procedure is tedious, long and costly.
Dans d'autres cas, on enfile manuellemnt des objets à emballer dans une portion d'une gaine tubulaire souple et on ferme ses extrémités en général par agrafage Par ailleurs, les documents US-A-6 070 399, US-A-4 545 181 ,In other cases, objects to be packed are manually threaded into a portion of a flexible tubular sheath and the ends are generally closed by stapling. In addition, documents US-A-6,070,399, US-A-4,545 181,
EP-A-1 053 939 et FR-A- 1 378 274 décrivent des appareils pour faire avancer un film tubulaire souple qui comprennent un noyau vertical et des galets pour porter ce noyau et faire avancer de haut en bas le film tubulaire disposé autour de ce noyau afin de couvrir un objet disposé sur un support inférieur horizontal. De tels appareils ne sont cependant pas adaptés pour l' emballage complet d'objets, notamment d'objets allongés de relativement grandes longueurs.EP-A-1 053 939 and FR-A- 1 378 274 describe apparatuses for advancing a flexible tubular film which comprise a vertical core and rollers for carrying this core and advancing the tubular film arranged around from top to bottom this core in order to cover an object placed on a horizontal lower support. Such devices are however not suitable for the complete packaging of objects, in particular elongated objects of relatively long lengths.
La présente invention a pour objectif d' améliorer les moyens utilisés jusqu'à maintenant pour exécuter les opérations d' emballage d' objets, en particulier en vue de rendre ces opérations plus simples et plus automatiques et de réduire les coûts de production en augmentant les rendements.
La présente invention a tout d'abord pour obj et une machine d'emballage pour emballer des objets dans un film tubulaire souple.The object of the present invention is to improve the means used up to now for carrying out the operations of packaging objects, in particular with a view to making these operations simpler and more automatic and reducing production costs by increasing the yields. The present invention firstly has for its object and a packaging machine for wrapping objects in a flexible tubular film.
Selon l'invention, cette machine comprend un dispositif d'avancement dudit film tubulaire souple comprenant un guide longitudinal adapté pour être longitudinalement et complètement engagé à l'intérieur du film tubulaire, des moyens de maintien adaptés pour porter ledit guide longitudinal et pour laisser passer ou être traversés par le film tubulaire, et des moyens d'entraînement longitudinal adaptés pour faire glisser longitudinalement le film tubulaire lorsque ce dernier est enfilé sur le guide longitudinal.According to the invention, this machine comprises a device for advancing said flexible tubular film comprising a longitudinal guide adapted to be longitudinally and completely engaged inside the tubular film, holding means adapted to carry said longitudinal guide and to allow passage or be traversed by the tubular film, and longitudinal drive means adapted to slide the tubular film longitudinally when the latter is threaded on the longitudinal guide.
La machine selon la présente invention peut avantageusement comprendre des moyens de réception des objets à emballer, adaptés pour constituer une zone de réception s' étendant longitudinalement dans le prolongement dudit guide longitudinal, de telle sorte que, lors de l'avancement du film tubulaire d' amont en aval sous l'effet du dispositif d'avancement, les obj ets à emballer s'engagent longitudinalement dans ce dernier.The machine according to the present invention may advantageously comprise means for receiving the objects to be packaged, adapted to constitute a reception zone extending longitudinally in the extension of said longitudinal guide, so that, during the advancement of the tubular film d 'Upstream downstream under the effect of the advancement device, the objects to be packaged engage longitudinally in the latter.
Selon une variante de la présente invention, lesdits moyens de réception des objets à emballer comprennent une gouttière portée en porte-à-faux, dans son prolongement, par ledit guide longitudinal et adaptée pour être longitudinalement et complètement engagée à l'intérieur du film tubulaire lors de l'avancement longitudinal de ce dernier.According to a variant of the present invention, said means for receiving the objects to be packaged comprise a gutter carried in cantilever, in its extension, by said longitudinal guide and adapted to be longitudinally and completely engaged inside the tubular film during the longitudinal advancement of the latter.
Selon la présente invention, ladite gouttière porte de préférence au moins un volet longitudinal articulé longitudinalement sur l'un de ses bords longitudinaux, des moyens étant prévus pour manœuvrer ce volet.According to the present invention, said gutter preferably carries at least one longitudinal flap articulated longitudinally on one of its longitudinal edges, means being provided for operating this flap.
Selon la présente invention, lesdits moyens de manœuvre comprennent de préférence un moyen à ressort qui agit pour amener ledit volet au-dessus de la gouttière et des moyens d'actionnement pour agir sur ledit volet à l'encontre de ce moyen à ressort, ces moyens d'actionnement étant escamotables pour laisser passer ledit film tubulaire.
Selon la présente invention, lesdits moyens de manœuvre sont de préférence placés en amont de la zone de réception de ladite gouttière longitudinale.According to the present invention, said maneuvering means preferably comprise a spring means which acts to bring said flap above the gutter and actuation means to act on said flap against this spring means, these actuation means being retractable to allow said tubular film to pass. According to the present invention, said maneuvering means are preferably placed upstream of the reception area of said longitudinal gutter.
Selon la présente invention, la machine comprend de préférence des moyens escamotables pour fermer le film tubulaire qui sont disposés à proximité de l'extrémité aval de ladite gouttière longitudinale.According to the present invention, the machine preferably comprises retractable means for closing the tubular film which are arranged near the downstream end of said longitudinal gutter.
Selon une autre variante de la présente invention, lesdits moyens de réception des objets à emballer comprennent une gouttière s'étendant dans le prolongement dudit guide longitudinal et adaptée pour être longitudinalement engagé à l'intérieur du film tubulaire lors de l'avancement longitudinal de ce dernier, l'extrémité aval de ladite gouttière étant portée par un chariot mobile longitudinalement pour déplacer ladite gouttière entre une position avancée dans laquelle son extrémité amont est placée accouplée audit guide longitudinl et une position reculée dans laquelle son extrémité amont est placée à distance dudit guide longitudinal.According to another variant of the present invention, said means for receiving the objects to be packaged comprise a gutter extending in the extension of said longitudinal guide and adapted to be longitudinally engaged inside the tubular film during the longitudinal advancement of this last, the downstream end of said gutter being carried by a carriage movable longitudinally to move said gutter between an advanced position in which its upstream end is placed coupled to said longitudinal guide and a retracted position in which its upstream end is placed at a distance from said guide longitudinal.
Selon la présente invention, la machine comprend de préférence des moyens complémentaires de réception, placés en-dessous de ladite zone de réception pour recevoir les paquets d'objets emballés dans une portion du film tubulaire lors du mouvement de ladite gouttière de sa position avancée vers sa position reculée.According to the present invention, the machine preferably comprises complementary reception means, placed below said reception zone for receiving the packages of objects packed in a portion of the tubular film during the movement of said gutter from its advanced position towards its remote position.
Selon la présente invention, la machine comprend de préférence des moyens de saisie escamotables adaptés pour saisir le paquet d'obj ets emballés entre ledit guide longitudinal et l'extrémité amont de ladite gouttière lorsque cette dernière est éloignée vers l'aval de sa position avancée.According to the present invention, the machine preferably comprises retractable gripping means suitable for gripping the packet of objects packaged between said longitudinal guide and the upstream end of said gutter when the latter is distant downstream from its advanced position. .
Selon la présente invention, ledit guide longitudinal et l'extrémité amont de ladite gouttière comprennent de préférence des moyens complémentaires d'accouplement longitudinal. Selon la présente invention, la machine comprend de préférence des moyens escamotables pour fermer le film tubulaire, qui sont disposés à proximité de l'extrémité aval dudit guide longitudinal et l'extrémité amont de ladite gouttière lorsque cette dernière est éloignée de sa position avancée, et des moyens escamotables pour fermer lé film
tubulaire qui sont disposés en aval de l'extrémité aval de ladite zone de réception.According to the present invention, said longitudinal guide and the upstream end of said gutter preferably comprise complementary means of longitudinal coupling. According to the present invention, the machine preferably comprises retractable means for closing the tubular film, which are arranged near the downstream end of said longitudinal guide and the upstream end of said gutter when the latter is far from its advanced position, and retractable means for closing the film tubular which are arranged downstream of the downstream end of said receiving zone.
Selon une autre variante de la présente invention, lesdits moyens de réception des objets à emballer comprennent des groupes de rouleaux espacés longitudinalement, chaque groupe de rouleaux comprenant au moins deux rouleaux inclinés formant un N ouvert vers le haut.According to another variant of the present invention, said means for receiving the objects to be packaged comprise groups of rollers spaced apart longitudinally, each group of rollers comprising at least two inclined rollers forming an N open upwards.
Selon la présente invention, les groupes de rouleaux sont de préférence portés par des moyens mobiles permettant de les écarter.According to the present invention, the groups of rollers are preferably carried by mobile means making it possible to separate them.
Selon la présente invention, la machine comprend de préférence des moyens pour entraîner en rotation lesdits rouleaux dans le sens de l'avancement du film tubulaire.According to the present invention, the machine preferably comprises means for rotating said rollers in the direction of advancement of the tubular film.
La machine selon la présente invention peuvent avantageusement comprendre des moyens de saisie adaptés pour saisir l'extrémité aval du film tubulaire et des objets et des moyens pour déplacer longitudinalement ces moyens de saisie.The machine according to the present invention can advantageously comprise gripping means suitable for gripping the downstream end of the tubular film and objects and means for longitudinally moving these gripping means.
Selon la présente invention, la machine comprend de préférence des moyens escamotables pour fermer le film tubulaire, qui sont disposés entre ledit guide longitudinal et le premier groupe de rouleaux, et des moyens escamotables pour fermer le film tubulaire qui sont disposés en aval de l'extrémité aval de la zone de réception.According to the present invention, the machine preferably comprises retractable means for closing the tubular film, which are arranged between said longitudinal guide and the first group of rollers, and retractable means for closing the tubular film which are arranged downstream of the downstream end of the reception area.
Selon la présente invention, ledit guide longitudinal comprend de préférence une portion de gouttière aval s'étendant longitudinalement.According to the present invention, said longitudinal guide preferably comprises a portion of downstream gutter extending longitudinally.
Selon la présente invention, ladite gouttière porte de préférence au moins un volet longitudinal articulé longitudinalement sur l'un de ses bords longitudinaux, des moyens étant prévus pour manœuvrer ce volet.According to the present invention, said gutter preferably carries at least one longitudinal flap articulated longitudinally on one of its longitudinal edges, means being provided for operating this flap.
Selon la présente invention, lesdits moyens de manœuvre comprennent de préférence un moyen à ressort qui agit pour amener ledit volet au-dessus de la gouttière et des moyens d'actionnement pour agir sur ledit volet à l'encontre de ce moyen à ressort, ces moyens d'actionnement étant escamotables pour laisser passer ledit film tubulaire.According to the present invention, said maneuvering means preferably comprise a spring means which acts to bring said flap above the gutter and actuation means to act on said flap against this spring means, these actuation means being retractable to allow said tubular film to pass.
La machine selon la présente invention, comprend de préférence des moyens pour couper le film tubulaire, qui sont disposés en amont de
ladite zone de réception et en aval desdits moyens de maintien et d'entraînement.The machine according to the present invention preferably comprises means for cutting the tubular film, which are arranged upstream of said receiving area and downstream of said holding and driving means.
Selon la présente invention, lesdits moyens pour couper le film tubulaire comprennent de préférence un couteau rotatif escamotable. Selon l'invention, lesdits moyens d'entraînement longitudinal peuvent avantageusement comprendre des moyens extérieurs d'action agissant sur la face extérieure du film tubulaire et des moyens intérieurs de réaction agissant sur la face intérieure du film tubulaire et prévus sur le guide longitudinal. Selon l'invention, lesdits moyens de maintien peuvent avantageusement comprendre au moins un moyen d'appui extérieur qui coopère avec au moins un moyen d' appui intérieur porté par ledit guide longitudinal, entre lesquels passe ledit film tubulaire.According to the present invention, said means for cutting the tubular film preferably comprises a retractable rotary knife. According to the invention, said longitudinal drive means can advantageously comprise external action means acting on the external face of the tubular film and internal reaction means acting on the internal face of the tubular film and provided on the longitudinal guide. According to the invention, said holding means can advantageously comprise at least one external support means which cooperates with at least one internal support means carried by said longitudinal guide, between which said tubular film passes.
Selon l'invention, ledit moyen d' appui extérieur et ledit moyen d'appui intérieur peuvent avantageusement comprendre respectivement au moins un galet et une roue, disposés de telle sorte que le film tubulaire passe et soit pris entre ce galet et cette roue.According to the invention, said external support means and said internal support means may advantageously comprise at least one roller and one wheel respectively, arranged so that the tubular film passes and is caught between this roller and this wheel.
Selon une variante de l'invention, ledit moyen d'appui extérieur et ledit moyen d'appui intérieur peuvent avantageusement comprendre respectivement une paire de galets et une roue disposées de telle sorte que le film tubulaire passe et soit pris entre d'une part cette roue et d'autre part les galets de cette paire de galets.According to a variant of the invention, said external support means and said internal support means may advantageously comprise respectively a pair of rollers and a wheel arranged so that the tubular film passes and is caught on the one hand this wheel and secondly the rollers of this pair of rollers.
Selon l'invention, ledit galet et ladite roue peuvent avantageusement comprendre respectivement une gorge périphérique et un épaulement annulaire engagés d'un dans l'une.According to the invention, said roller and said wheel may advantageously comprise respectively a peripheral groove and an annular shoulder engaged with one in one.
Selon l'invention, ladite gorge périphérique et ledit épaulement annulaire présentent de préférence des surfaces annulaires d'appui axialement espacées.According to the invention, said peripheral groove and said annular shoulder preferably have axially spaced annular bearing surfaces.
Selon l'invention, ladite roue est de préférence placée à l'extérieur du film tubulaire et est reliée à des moyens d'actionnement en rotation de façon à constituer lesdits moyens d'entraînement.According to the invention, said wheel is preferably placed outside the tubular film and is connected to rotation actuation means so as to constitute said drive means.
. Selon l'invention, lesdits moyens d'entraînement comprennent de préférence au moins un organe rotatif d'entraînement tel qu'une roue d'entraînement ou une bande sans fin d' entraînement, qui agit sur la face
extérieure du film tubulaire et qui est reliée à un moteur d'entraînement en rotation.. According to the invention, said drive means preferably comprise at least one rotary drive member such as a drive wheel or an endless drive belt, which acts on the face outside of the tubular film and which is connected to a rotary drive motor.
Selon une variante de l'invention, lesdits moyens d'entraînement comprennent de préférence au moins un organe rotatif fou tel qu'un galet fou, porté par ledit guide longitudinal, le film tubulaire passant entre ledit organe rotatif et cet organe rotatif fou.According to a variant of the invention, said drive means preferably comprise at least one idler rotary member such as an idler roller, carried by said longitudinal guide, the tubular film passing between said rotary member and this idler rotary member.
Selon une autre variante de l'invention, ledit guide longitudinal comprend de préférence au moins une surface d'appui située en vis-à-vis dudit organe rotatif d'entraînement. Selon l'invention, lesdits moyens de maintien peuvent avantageusement comprendre au moins un moyen inférieur d'appui extérieur placé en-dessous dudit guide longitudinal et au moins un moyen supérieur d'appui extérieur placé en-dessus dudit guide longitudinal, qui coopèrent respectivement avec des moyens d'appui intérieurs portés par ledit guide longitudinal.According to another variant of the invention, said longitudinal guide preferably comprises at least one bearing surface located opposite said rotary drive member. According to the invention, said holding means can advantageously comprise at least one lower external support means placed below said longitudinal guide and at least one upper external support means placed above said longitudinal guide, which cooperate respectively with internal support means carried by said longitudinal guide.
Selon l'invention, ledit moyen inférieur d'appui extérieur et ledit moyen supérieur d'appui extérieur sont de préférence décalés longitudinalement audit guide longitudinal.According to the invention, said lower external support means and said upper external support means are preferably offset longitudinally to said longitudinal guide.
Selon l'invention, lesdits moyens de maintien peuvent avantageusement comprendre au moins un moyen inférieur d' appui extérieur placé en-dessous dudit guide longitudinal et au moins un moyen supérieur d'appui extérieur placé en-dessus dudit guide longitudinal et opposé audit moyen inférieur d'appui extérieur, qui coopèrent respectivement avec des moyens d'appui intérieurs portés par ledit guide longitudinal, ainsi qu'au moins un moyen d'appui extérieur décalés longitudinalement audit guide longitudinal, qui coopère avec au moins un moyen d'appui intérieur porté par ce guide longitudinal.According to the invention, said holding means can advantageously comprise at least one lower external support means placed below said longitudinal guide and at least one upper external support means placed above said longitudinal guide and opposite to said lower means external support, which cooperate respectively with internal support means carried by said longitudinal guide, as well as at least one external support means offset longitudinally to said longitudinal guide, which cooperates with at least one internal support means carried by this longitudinal guide.
Selon l'invention, lesdits moyens de maintien comprennent de préférence des paires de moyens inférieurs d' appui extérieur placés en- dessous dudit guide longitudinal et décalés transversalement pour constituer un N, ces moyens inférieurs d'appui extérieur coopérant respectivement avec des moyens d' appui intérieurs portés par ledit guide longitudinal et décalés transversalement pour constituer un N correspondant.
Selon l'invention, lesdits moyens de maintien comprennent de préférence des paires de moyens supérieurs d' appui extérieur placés en- dessus dudit guide longitudinal et décalés transversalement pour constituer un N, ces moyens supérieurs d' appui extérieur coopérant respectivement avec des moyens d'appui intérieurs portés par ledit guide longitudinal et décalés transversalement pour constituer un N correspondant.According to the invention, said holding means preferably comprise pairs of lower external support means placed below said longitudinal guide and offset transversely to form an N, these lower external support means respectively cooperating with means of internal support carried by said longitudinal guide and offset transversely to form a corresponding N. According to the invention, said holding means preferably comprise pairs of upper external support means placed above said longitudinal guide and offset transversely to form an N, these upper external support means respectively cooperating with means of internal support carried by said longitudinal guide and offset transversely to form a corresponding N.
Selon une variante de l'invention, lesdits moyens de maintien comprennent de préférence au moins deux galets intérieurs opposés arrière et deux galets intérieurs opposés avant, portés par ledit guide longitudinal, ainsi qu'au moins deux roues extérieures opposées arrière, disposées de part et d'autre du guide longitudinal, et deux roues extérieures opposées avant, disposées de part et d' autre du guide longitudinal, lesdits galets et lesdites roues comprenant respectivement une gorge annulaire et un épaulement annulaire engagé l'un dans l'autre.According to a variant of the invention, said holding means preferably comprise at least two opposite rear inner rollers and two opposite opposite inner rollers, carried by said longitudinal guide, as well as at least two opposite rear external wheels, arranged on either side. on the other of the longitudinal guide, and two opposite outer front wheels, arranged on either side of the longitudinal guide, said rollers and said wheels respectively comprising an annular groove and an annular shoulder engaged one inside the other.
Selon l'invention, ledit guide longitudinal est de préférence sensiblement tubulaire, son extrémité s' engageant en premier dans le film tubulaire étant de préférence appointée.According to the invention, said longitudinal guide is preferably substantially tubular, its end engaging first in the tubular film being preferably pointed.
Selon l'invention, ledit guide longitudinal présente une section sensiblement ovale.According to the invention, said longitudinal guide has a substantially oval section.
La présente invention a également pour objet un dispositif d'avancement d'un film tubulaire souple.The present invention also relates to a device for advancing a flexible tubular film.
Selon la présente invention, ce dispositif d'avancement peut avantageusement comprendre des moyens de réglage adaptés pour régler les positions transversales relatives de ces parties longitudinales opposées de guidage, desdits moyens de maintien dudit guide longitudinal et desdits moyens d' entraînement longitudinal du film tubulaire.According to the present invention, this advancement device can advantageously comprise adjustment means suitable for adjusting the relative transverse positions of these opposite longitudinal guide parts, said means for holding said longitudinal guide and said means for longitudinally driving the tubular film.
Selon la présente invention, lesdits moyens de réglage comprennent des moyens de rappel sollicitant lesdites parties longitudinales opposées dudit guide longitudinal dans les sens qui les écarte et des moyens pour déplacer transversalement lesdits moyens de maintien et d'entraînement.
Selon- la présente invention, ledit guide longitudinal comprend une poutre longitudinale centrale et des bras articulés reliant cette poutre et lesdites parties longitudinales de guidage, lesdits moyens de réglage de l'écartement entre ces parties agissant entre cette poutre et ces bras articulés.According to the present invention, said adjustment means comprise return means urging said opposite longitudinal parts of said longitudinal guide in the directions which separate them and means for transversely moving said holding and driving means. According to the present invention, said longitudinal guide comprises a central longitudinal beam and articulated arms connecting this beam and said longitudinal guide parts, said means for adjusting the spacing between these parts acting between this beam and these articulated arms.
Selon la présente invention, lesdites parties longitudinales de guidage comprennent de préférence des support longitudinaux qui portent des portions longitudinales d'enveloppe.According to the present invention, said longitudinal guide parts preferably comprise longitudinal supports which carry longitudinal envelope portions.
La machine selon la présente invention, peuvent avantageusement comprendre des moyens de réglage transversal desdits moyens de réception.The machine according to the present invention can advantageously comprise means for transverse adjustment of said receiving means.
La présente invention sera mieux comprise à l' étude de machines d' emballage sous film tubulaire souple d'objets à emballer mettant en œuvre des dispositifs d'avancement d'un tel film, décrites à titre d' exemples non limitatifs et illustrés par le dessin sur lequel :The present invention will be better understood from the study of machines for packaging a flexible tubular film of objects to be packaged using devices for advancing such a film, described by way of nonlimiting examples and illustrated by the drawing on which:
- la figure 1 représente une vue générale en perspective d'une machine d'emballage selon l'invention ;- Figure 1 shows a general perspective view of a packaging machine according to the invention;
- la figure 2 repésente une vue en perspective d'un dispositif d'avancement de film ; - la figure 3 représente une coupe longitudinale du dispositif d'avancement de la figure 2 ;- Figure 2 shows a perspective view of a film advancement device; - Figure 3 shows a longitudinal section of the advancement device of Figure 2;
- la figure 4 représente une coupe transversale du dispositif d'avancement de la figure 2, selon IN-IN de la figure 3 ;- Figure 4 shows a cross section of the advancement device of Figure 2, according to IN-IN of Figure 3;
- la figure 5 représente une coupe transversale du dispositif d'avancement de la figure 2, selon N-N de la figure 3 ;- Figure 5 shows a cross section of the advancement device of Figure 2, according to N-N of Figure 3;
- la figure 6 représente une coupe longitudinale d'un moyen de support et de maintien du dispositif d' avancement de la figure 2 ;- Figure 6 shows a longitudinal section of a support means and holding the advancement device of Figure 2;
- la figure 7 représente une vue en bout d'un moyen de coupure ou de découpe du film tubulaire, dans une position escamotée ;- Figure 7 shows an end view of a means of cutting or cutting the tubular film, in a retracted position;
- la figure 8 représente une vue en bout du moyen de coupure ou de découpe de la figure 7, dans une position active;- Figure 8 shows an end view of the cutting or cutting means of Figure 7, in an active position;
- la figure 9 représente une coupe longitudinale du moyen de coupure ou de découpe de la figure 7 ;
- la figure 10 représente une coupe transversale d'un moyen de commande de volets portés par une goutière de la machine de la figure 1, en position déployée ;- Figure 9 shows a longitudinal section of the cutting or cutting means of Figure 7; - Figure 10 shows a cross section of a shutter control means carried by a gutter of the machine of Figure 1, in the deployed position;
- la figure 11 représente une coupe transversale du moyen de commande de volets de la figure 10, en position rabattue ;- Figure 11 shows a cross section of the shutter control means of Figure 10, in the folded position;
- la figure 12 représente une coupe transversale de ladite goutière dont les volets sont déployés ;- Figure 12 shows a cross section of said gutter whose flaps are deployed;
- la figure 13 représente une coupe transversale de ladite goutière dont les volets sont rabattus; - la figure 14 représente une vue de dessus d'un autre dispositif d'avancement de film selon l'invention ;- Figure 13 shows a cross section of said gutter whose flaps are folded down; - Figure 14 shows a top view of another film advancement device according to the invention;
- la figure 15 représente une coupe transversale selon XN-XN du dispositif d'avancement de la figure 14 ;- Figure 15 shows a cross section along XN-XN of the advancement device of Figure 14;
- la figure 16 représente une vue latérale d'un autre dispositif d'avancement de film selon l'invention ;- Figure 16 shows a side view of another film advancement device according to the invention;
- la figure 17 représente une coupe transversale selon XNII- XVII du dispositif d'avancement de la figure 16 ;- Figure 17 shows a cross section along XNII-XVII of the advancement device of Figure 16;
- la figure 18 représente une coupe longitudinale et verticale d'un autre dispositif d'avancement de film selon l' invention ; - la figure 19 représente une coupe transverale selon IXX-IXX du dispositif d'avancement de la figure 18 ;- Figure 18 shows a longitudinal and vertical section of another film advancement device according to the invention; - Figure 19 shows a cross section along IXX-IXX of the advancement device of Figure 18;
- les figures 20 à 27 représentent une vue latérale d'une autre machine d'emballage selon la présente invention, dans une position initiale, dans des positions opérationnelles successives ;- Figures 20 to 27 show a side view of another packaging machine according to the present invention, in an initial position, in successive operational positions;
- la figure 28 représente une coupe transversale intermédiaire de la machine des figures 20 à 27 ;- Figure 28 shows an intermediate cross section of the machine of Figures 20 to 27;
- les figures 29 et 30 représentent une coupe transversale d'une partie inférieure de la machine des. figures 20 à 27 ; - les figures 31 , 34, 35, 37, et 40 à 44 représentent une vue latérale d'une autre machine d'emballage selon la présente invention, dans des positions opérationnelles successives ;- Figures 29 and 30 show a cross section of a lower part of the machine. Figures 20 to 27; - Figures 31, 34, 35, 37, and 40 to 44 show a side view of another packaging machine according to the present invention, in successive operational positions;
-. les figures 32, 35, 38 et 39 montrent des coupes transversales intermédiaires de la machine des figures 31 , 34, 35, 37, et 40 à
44, en un endroit de sa longueur et dans des positions opérationnelles successives ;-. Figures 32, 35, 38 and 39 show intermediate cross sections of the machine of Figures 31, 34, 35, 37, and 40 to 44, in a place of its length and in successive operational positions;
- les figures 33, 36 et 39 montrent des coupes transversales intermédiaires de la machine des figures 31 , 34, 35, 37, et 40 à 44, en un autre endroit de sa longueur et dans des positions opérationnelles successives ;- Figures 33, 36 and 39 show intermediate cross sections of the machine of Figures 31, 34, 35, 37, and 40 to 44, at another location along its length and in successive operational positions;
- la figure 46 représente une coupe horizontale d'un dispositif d' avancement d'un film tubulaire, en position réduite ;- Figure 46 shows a horizontal section of a device for advancing a tubular film, in the reduced position;
- la figure 47 représente une coupe transversale de la figure 46 ; - la figure 48 représente une coupe horizontale du dispositif d' avancement de la figure 46, en position grossie ;- Figure 47 shows a cross section of Figure 46; - Figure 48 shows a horizontal section of the advancement device of Figure 46, in the enlarged position;
- et la figure 49 représente une coupe transversale de la figure 48.FIG. 49 represents a cross section of FIG. 48.
En se reportant en particulier à la figure 1, on peut voir qu'on a représenté une machine d'emballage 1 d' objets allongés 2 de façon à constituer un paquet 3 dans une portion 4a d'un film tubulaire souple 4, par exemple en matière plastique, issu d'une bobine 5 dans laquelle le film tubulaire 4 est enroulé à plat.Referring in particular to FIG. 1, it can be seen that a packaging machine 1 for elongated objects 2 has been shown so as to constitute a package 3 in a portion 4a of a flexible tubular film 4, for example made of plastic, from a reel 5 in which the tubular film 4 is wound flat.
D'une manière générale, la machine 1 comprend longitu- dinalement, dans sa partie amont, un dispositif d'avancement 6 du film tubulaire 4 et, dans sa partie aval, une gouttière 7 de réception qui définit une zone longitudinale de réception des objets à emballer 2.Generally, the machine 1 comprises longitudinally, in its upstream part, a device 6 for advancing the tubular film 4 and, in its downstream part, a receiving gutter 7 which defines a longitudinal zone for receiving objects to pack 2.
En se reportant plus particulièrement aux figures 1 à 6, on peut voir que le dispositif d'avancement 6 comprend un guide longitudinal 8 qui comprend une poutre intérieure longitudinale 9 autour de laquelle est fixée une enveloppe longitudinale 10, éventuellement en plusieurs morceaux, de section ovale dont la plus grande largeur est disposée horizontalement, la partie d'extrémité arrière ou amont 10a de l'enveloppe 10 étant formée de façon à être appointée et à bout arrondi. Pour assurer de façon suspendue le maintien et le support du guide longitudinal 8 comme on l'indiquera plus loin, le dispositif d'avancement .6 comprend deux moyens supérieurs arrière 11 et 12 disposés dans la zone arrière de sa partie de section ovale et décalés transversalement l'un par rapport à l'autre, de part et d'autre de l' axe
longitudinal, et, décalés longitudinalement vers l'avant, deux moyens inférieurs avant 13 et 14 disposés dans la zone avant de sa partie ovale et décalés transversalement l'un par rapport à l'autre, de part et d'autre de l'axe longitudinal. Chacun des moyens de support et de maintien ci-dessus comprend deux galets fous intérieurs d'appui et de réaction 15a et 15b à axes parallèles, qui sont portés par la poutre longitudinale 9 du guide longitudinal 8, qui sont décalés longitudinalement et qui dépassent légèrement au travers d'une ouverture 16 ménagée dans l'enveloppe 10, ainsi qu'une roue extérieure d'appui et d'action 17 à axe parallèle aux axes des galets 15a et 15b. Comme le montre plus précisément la figure 6, les galets 15a et 15b et la roue 17 sont disposés de telle sorte que la périphérie cylindrique de cette roue 17 prend appui à la fois sur la périphérie cylindrique du galet 15a et la périphérie cylindrique du galet 15b.Referring more particularly to Figures 1 to 6, it can be seen that the advancement device 6 comprises a longitudinal guide 8 which comprises a longitudinal inner beam 9 around which is fixed a longitudinal casing 10, possibly in several pieces, of section oval, the largest width of which is arranged horizontally, the rear or upstream end portion 10a of the envelope 10 being formed so as to be pointed and with a rounded end. To ensure that the longitudinal guide 8 is held and supported in a suspended manner, as will be indicated below, the advancement device .6 comprises two rear upper means 11 and 12 arranged in the rear zone of its part of oval section and offset transversely to each other, on either side of the axis longitudinal, and, offset longitudinally forwards, two lower front means 13 and 14 arranged in the front zone of its oval part and offset transversely with respect to each other, on either side of the axis longitudinal. Each of the above support and holding means comprises two internal idle support and reaction rollers 15a and 15b with parallel axes, which are carried by the longitudinal beam 9 of the longitudinal guide 8, which are offset longitudinally and which slightly protrude through an opening 16 formed in the casing 10, as well as an external support and action wheel 17 with an axis parallel to the axes of the rollers 15a and 15b. As shown more precisely in FIG. 6, the rollers 15a and 15b and the wheel 17 are arranged so that the cylindrical periphery of this wheel 17 bears both on the cylindrical periphery of the roller 15a and the cylindrical periphery of the roller 15b .
La roue 17 est portée par l'axe d'un moto-réducteur 18 d'entraînement, de préférence à moteur asynchrone, ce moto-réducteur étant fixé au bâti 19 de la machine.The wheel 17 is carried by the axis of a geared motor 18 for driving, preferably with an asynchronous motor, this geared motor being fixed to the frame 19 of the machine.
Les moyens de support arrière 11 et 12 sont disposés l'un par rapport à l'autre de telle sorte que les axes respectivement de leurs galets 15a et 15b et leurs roues 17 soient disposés de façon à former un N d'angle d'ouverture par exemple égal à 90° et dont la pointe est dirigée vers le haut, les appuis de leurs roues 17 sur leurs galets 15a et 15b étant en conséquence à 45° par rapport à un plan horizontal. Les moyens inférieurs de support avant 13 et 14 sont disposés l'un par rapport à l' autre de telle sorte que les axes respectivement de leurs galets 15a et 15b et leurs , roues 17 soient disposés de façon à former un N d'angle d'ouverture par exemple égal à 90° et dont la pointe est dirigée vers le bas, les appuis de leurs roues 17 sur leurs galets 15a et 15b étant en conséquence à 45° par rapport à un plan horizontal.The rear support means 11 and 12 are arranged relative to each other so that the axes respectively of their rollers 15a and 15b and their wheels 17 are arranged so as to form an opening angle N for example equal to 90 ° and the point of which is directed upwards, the supports of their wheels 17 on their rollers 15a and 15b being consequently at 45 ° relative to a horizontal plane. The lower front support means 13 and 14 are arranged with respect to each other so that the axes respectively of their rollers 15a and 15b and their wheels 17 are arranged so as to form an N of angle d 'opening for example equal to 90 ° and the tip of which is directed downwards, the supports of their wheels 17 on their rollers 15a and 15b being consequently at 45 ° relative to a horizontal plane.
La machine d'emballage 1 comprend en outre une gouttière longitudinale 7 qui prolonge vers l' avant l'enveloppe 10 du "guide longitudinal 8.
Cette gouttière 7 présente une courte- partie arrière 20 de section ovale qui correspond à la section aval du guide longitudinal 8. Cette partie arrière 20 contient une pièce intermédiaire 21 qui est engagée longitudinalement sur une partie avant en saillie 22, de section carrée, de la poutre 9 du guide longitudinal 8. La gouttière 7 est ainsi encastrée à l'arrière et en porte-à-faux vers l'avant.The packaging machine 1 further comprises a longitudinal gutter 7 which extends the envelope 10 of the " longitudinal guide 8" forward. This gutter 7 has a short rear part 20 of oval section which corresponds to the downstream section of the longitudinal guide 8. This rear part 20 contains an intermediate part 21 which is engaged longitudinally on a projecting front part 22, of square section, of the beam 9 of the longitudinal guide 8. The gutter 7 is thus fitted at the rear and cantilevered towards the front.
En avant de sa partie arrière 21 , la gouttière 7 présente une partie ou zone longitudinale 23 pour la réception des objets 2 à emballer, dont la section correspond sensiblement à la moitié inférieure de l' enveloppe 10 du guide longitudinal 9.In front of its rear part 21, the gutter 7 has a longitudinal part or zone 23 for receiving the objects 2 to be packaged, the cross section of which corresponds substantially to the lower half of the casing 10 of the longitudinal guide 9.
La machine d' emballage 1 étant ainsi constituée, l' ensemble formé par le guide longitudinal 8 et la gouttière 7 présente un centre de gravité situé en avant des moyens de support et de maintien avant 13 et 14 de telle sorte que cet ensemble est supporté, est maintenu longitudinalement et est empêché de tourner selon son axe longitudinal par le fait que, par effet de levier, les galets 15a et 15b des moyens inférieurs avant 13 et 14 de support et de maintien sont respectivement en appui vers le bas sur leur roue extérieure 17 et les galets 15a et 15b des moyens supérieurs arrière 11 et 12 de support et de maintien sont respectivement en appui sur le haut sur leur roue extérieure 17.The packaging machine 1 thus being constituted, the assembly formed by the longitudinal guide 8 and the gutter 7 has a center of gravity situated in front of the front support and holding means 13 and 14 so that this assembly is supported , is held longitudinally and is prevented from rotating along its longitudinal axis by the fact that, by leveraging, the rollers 15a and 15b of the lower front means 13 and 14 for support and holding are respectively pressed down on their wheel outer 17 and the rollers 15a and 15b of the upper rear means 11 and 12 for support and holding are respectively supported on the top on their outer wheel 17.
Dans la zone de jonction entre le guide longitudinal 8 et la gouttière 7 est prévue une gorge annulaire 24.In the junction zone between the longitudinal guide 8 and the gutter 7 is provided an annular groove 24.
Comme le montrent notamment les figures 1 , 7, 8 et 9, la machine d'emballage 1 comprend en outre un moyen de coupure 25 qui comprend une couronne 26 qui entoure à distance la zone de jonction précitée et qui porte un couteau 27 mobile dans un plan radial, ce couteau 27 présentant une extrémité intérieure 28 coupante et une extrémité extérieure 29 qui porte un galet 30. La couronne 26 est reliée à des moyens d' entraînement en rotation classiques non représentés Le couteau 27 est soumis à un ressort 31 agissant de façon à engager son extrémité coupante 28 dans la gorge annulaire 24 comme le montre la figure 8.As shown in particular in Figures 1, 7, 8 and 9, the packaging machine 1 further comprises a cutting means 25 which comprises a ring 26 which remotely surrounds the aforementioned junction zone and which carries a knife 27 movable in a radial plane, this knife 27 having an inner cutting end 28 and an outer end 29 which carries a roller 30. The crown 26 is connected to conventional rotation drive means not shown The knife 27 is subjected to a spring 31 acting so as to engage its cutting end 28 in the annular groove 24 as shown in FIG. 8.
Comme le montrent les figures 7 et 9, lorsque la couronne 26 est à une position déterminée, une came 32 est susceptible d'agir sur le galet
30 du couteau 27 sous l'effet d'un vérin 33 de façon à escamoter ou écarter vers l'extérieur l' extrémité coupante 28 du couteau 27.As shown in Figures 7 and 9, when the crown 26 is in a determined position, a cam 32 is capable of acting on the roller 30 of the knife 27 under the effect of a jack 33 so as to retract or spread outwards the cutting end 28 of the knife 27.
En outre, la machine d'emballage 1 comprend, en avant de l'extrémité avant de la gouttière 7, des moyens de soudage à chaud 33 dont on a uniquement représenté les mors escamotables 34 et 35.In addition, the packaging machine 1 comprises, in front of the front end of the gutter 7, heat welding means 33 of which the retractable jaws 34 and 35 have only been shown.
La machine d'emballage qui vient d'être décrite peut fonctionner et être utilisée de la manière suivante.The packaging machine which has just been described can operate and be used in the following manner.
Ayant placé une bobine 5 de film tubulaire enroulé à plat sur un axe transversal 5b, on déroule manuellement le film tubulaire enroulé à plat de la bobine 5 et on le fait passer au-dessus d'un rouleau à axe transversal 5a placé en alignement à l' arrière et à distance du guide longitudinal 8.Having placed a reel 5 of tubular film wound flat on a transverse axis 5b, the tubular film wound flat lay from the reel 5 is manually unwound and passed over a roller with transverse axis 5a placed in alignment with rear and away from the longitudinal guide 8.
En tirant horizontalement vers l'avant sur le film, on engage longitudinalement l'extrémité arrière 10a du guide longitudinal 8 dans le film tubulaire 4 et on fait glisser ce dernier autour et sur le guide longitudinal 8 jusqu' aux moyens supérieurs arrière de support et de maintien 11 et 12.By pulling horizontally forward on the film, the rear end 10a of the longitudinal guide 8 is longitudinally engaged in the tubular film 4 and the latter is slid around and on the longitudinal guide 8 as far as the upper rear support means and holding 11 and 12.
Les roues extérieures 17 de ces moyens 11 et 12 étant entraînées en rotation par les moto-réducteurs correspondants 18, le film tubulaire 4 se trouve entraîné longitudinalement et vers l'avant en passant entre les roues extérieures 17 et les galets intérieurs 15a et 15b.The outer wheels 17 of these means 11 and 12 being driven in rotation by the corresponding geared motors 18, the tubular film 4 is driven longitudinally and forwards passing between the outer wheels 17 and the inner rollers 15a and 15b.
Le film tubulaire 4 avançant, il s'engage alors entre les roues extérieures 17 et les galets intérieurs 15a et 15b des moyens inférieurs avant de support et de maintien 13 et 14 et est également entraîné vers l'avant par les roues 17 de ces derniers par leurs moto-réducteurs. Ainsi, le film tubulaire 4 passe au travers des moyens de support, de maintien et d'entraînement 11 , 12, 13 et 14, leurs galets 15a et 15b étant en appui contre sa face intérieure et les roues 17 étant en appui contre sa face extérieure. Lorsque le film tubulaire 4 atteint la zone de jonction entre le guide longitudinal 8 et la gouttière 7, on arrête les moto-réducteurs 18 pour l'immobiliser.The tubular film 4 advancing, it then engages between the outer wheels 17 and the inner rollers 15a and 15b of the lower front support and holding means 13 and 14 and is also driven forward by the wheels 17 of the latter by their geared motors. Thus, the tubular film 4 passes through support, holding and driving means 11, 12, 13 and 14, their rollers 15a and 15b being in abutment against its inner face and the wheels 17 being in abutment against its face exterior. When the tubular film 4 reaches the junction zone between the longitudinal guide 8 and the gutter 7, the gearmotors 18 are stopped to immobilize it.
La machine d'emballage est alors prête.
Par exemple à l'aide d'un dispositif automatique d' alimentation et de comptage, on dépose longitudinalement dans la gouttière 7 des objets 2 à emballer, de telle sorte que ces objets dépassent à l' avant de la gouttière 7. On active les moto-réducteurs 18 des moyens de support et de maintien 11 , 12, 13 et 14 de façon à faire avancer le film tubulaire 4. Ce dernier glisse longitudinalement vers l'avant ou l' aval autour du guide longitudinal 8 et de la gouttière 7 contenant les objets à emballer 2.The packaging machine is then ready. For example using an automatic feeding and counting device, objects 2 to be packaged are placed longitudinally in the gutter 7, so that these objects protrude at the front of the gutter 7. The motor-reducers 18 of the support and holding means 11, 12, 13 and 14 so as to advance the tubular film 4. The latter slides longitudinally forward or downstream around the longitudinal guide 8 and the gutter 7 containing the objects to be packaged 2.
Lorsque l'extrémité avant ou aval du film tubulaire 4 est légèrement au-delà des mors 34 et 35 des moyens de soudage 33, on arrête les moto-réducteurs 18 et on active ces moyens de soudage 33 de manière à écraser et souder thermiquement l'extrémité avant du film tubulaire 4. Par exemple en même temps, on actionne les moyens de coupure 25 de façon que le couteau 27, en s' engageant dans la rainure annulaire 24, traverse et, par rotation de la couronne 26, coupe circonférentiellement le film tubulaire 4 de façon à obtenir une portion 4a de film tubulaire 4 séparée du reste de la bobine 5.When the front or downstream end of the tubular film 4 is slightly beyond the jaws 34 and 35 of the welding means 33, the gearmotors 18 are stopped and these welding means 33 are activated so as to crush and thermally weld the 'front end of the tubular film 4. For example at the same time, the cutting means 25 are actuated so that the knife 27, by engaging in the annular groove 24, passes through and, by rotation of the crown 26, cuts circumferentially the tubular film 4 so as to obtain a portion 4a of tubular film 4 separated from the rest of the reel 5.
On peut alors, par exemple manuellement, prendre cette portion 4a de film tubulaire 4 en avant de la gouttière 7, en prenant en même temps les parties dépassantes vers l'avant des objets à emballer 2, et déplacer l' ensemble longitudinalement vers l'avant.We can then, for example manually, take this portion 4a of tubular film 4 in front of the gutter 7, at the same time taking the protruding parts forward of the objects to be packaged 2, and move the assembly longitudinally towards the before.
Lorsque cette portion 4a du film tubulaire 4 et les objets à emballer qu'elle contient sont extraits longitudinalement de la gouttière 7, on peut alors, grâce aux moyens de soudage 33, procéder au soud âge de la partie d' extrémité arrière de cette portion 4a.When this portion 4a of the tubular film 4 and the objects to be packaged that it contains are extracted longitudinally from the gutter 7, it is then possible, thanks to the welding means 33, to weld the age of the rear end part of this portion 4a.
On obtient alors un paquet fermé 3 d'objets emballés dans une portion 4a du film tubulaire 4 issue de la bobine 5.One then obtains a closed package 3 of objects packed in a portion 4a of the tubular film 4 coming from the reel 5.
On peut alors recommencer une. opération d'emballage comme décrit précédemment, en disposant de nouveaux objets 2 à emballer dans la gouttière 7 et en déplaçant longitudinalement le film tubulaire 4 sur le guide longitudinal 8 et la gouttière 7.We can then start again. packing operation as described above, by placing new objects 2 to be packed in the gutter 7 and by longitudinally moving the tubular film 4 on the longitudinal guide 8 and the gutter 7.
En se reportant aux figures 3 et 10 à 12, on peut voir que les bords longitudinaux de la portion 23 de la gouttière 7 peuvent être
équipés de volets longitudinaux 36 et 37 respectivement articulés sur ces bords par des axes longitudinaux 38 et 39.Referring to Figures 3 and 10 to 12, it can be seen that the longitudinal edges of the portion 23 of the gutter 7 can be equipped with longitudinal flaps 36 and 37 respectively articulated on these edges by longitudinal axes 38 and 39.
Les volets 36 et 37 présentent, à leur extrémité arrière, des flancs transversaux 40 et 41 triangulaires qui sont munis d'un côté de pions 42 et 43 et de leur autre côté de galets 44 et 45 à axes longitudinaux. Entre les pions 42 et 43 est monté un ressort transversal 46 qui tend à rabattre les volets 36 et 37 l'un vers l'autre au-dessus de la gouttière 7.The flaps 36 and 37 have, at their rear end, triangular transverse flanks 40 and 41 which are provided on one side with pins 42 and 43 and on the other side with rollers 44 and 45 with longitudinal axes. Between the pins 42 and 43 is mounted a transverse spring 46 which tends to fold the flaps 36 and 37 towards each other above the gutter 7.
Pour écarter les volets 36 et 37 est prévu, en dessous de la gouttière 7, un vérin 47 à axe vertical, dont la tige 48 porte à son extrémité libre une came 49 à pointe tournée vers le haut.To separate the flaps 36 and 37 is provided, below the gutter 7, a cylinder 47 with a vertical axis, the rod 48 of which carries at its free end a cam 49 with point turned upwards.
La gouttière 7 présente une ouverture 50 permettant à la came 49 du vérin 47 de pénétrer par en dessous dans la gouttière 7 afin que les flancs de la came 49 viennent en contact avec les galets 44 et 45 des volets 36 et 37. Comme le montre la figure 1 1, lorsque la came 49 du vérin 47 est à sa position basse escamotée, elle se trouve en dessous et à distance de la gouttière 7. Sous l'effet du ressort 46, les volets 36 et 37 sont rabattus au-dessus de la gouttière 78. De préférence, dans cette position rabattue, les volets 36 et 37 ont une section correspond à la moitié supérieure de la partie arrière 20 de la gouttière 7 ou de l'enveloppe 10 du guide longitudinal 8.The gutter 7 has an opening 50 allowing the cam 49 of the cylinder 47 to penetrate from below into the gutter 7 so that the sides of the cam 49 come into contact with the rollers 44 and 45 of the flaps 36 and 37. As shown Figure 1 1, when the cam 49 of the cylinder 47 is in its lowered retracted position, it is located below and away from the gutter 7. Under the effect of the spring 46, the flaps 36 and 37 are folded above of the gutter 78. Preferably, in this folded position, the flaps 36 and 37 have a section corresponding to the upper half of the rear part 20 of the gutter 7 or of the casing 10 of the longitudinal guide 8.
Comme le montre la figure 10, en actionnant le vérin 47, la came 49 monte, rencontre les galets 44 et 45, les écarte et provoque l' ouverture des volets 36 et 37. Lorsque la came 49 du vérin 47 est à sa position haute, les volets 36 et 37 sont de préférence dans une position déployée telle que les bords longitudinaux de ces volets, opposés aux axes longitudinaux 38 et 39, sont latéralement à l' extérieur de ces axes.As shown in Figure 10, by actuating the cylinder 47, the cam 49 rises, meets the rollers 44 and 45, spreads them apart and causes the flaps 36 and 37 to open. When the cam 49 of the cylinder 47 is in its high position , the flaps 36 and 37 are preferably in a deployed position such that the longitudinal edges of these flaps, opposite to the longitudinal axes 38 and 39, are laterally outside these axes.
En complément de ce qui a été décrit plus haut, les volets 36 et 37 peuvent être utilisés de la façon suivante. Avant d'alimenter la gouttière 7 en obj ets 2 à emballer, on actionne le vérin 47 de façon à amener la came 49 à sa position haute et placer les volets 36 et 37 à leur position déployée.
Comme le montre la figure 12, on alimente la gouttière 7 en produits 2 à emballer, les volets 36 et 37 constituant des déflecteurs latéraux facilitant l'amenée des produits 2 à emballer dans la gouttière 7.In addition to what has been described above, the flaps 36 and 37 can be used as follows. Before supplying the gutter 7 with objects 2 to be packaged, the actuator 47 is actuated so as to bring the cam 49 to its high position and place the flaps 36 and 37 in their deployed position. As shown in FIG. 12, the gutter 7 is supplied with products 2 to be packaged, the flaps 36 and 37 constituting lateral deflectors facilitating the bringing of the products 2 to be packaged into the gutter 7.
Comme le montre la figure 13, on actionne le vérin 47 pour amener la came 49 à sa position basse escamotée. Sous l'effet du ressort 46, les volets 36 et 37 viennent à leur position rabattue et compactent les obj ets 2 à emballer, les objets 2 à emballer étant ainsi confinés dans un espace tubulaire constitué par la gouttière 7 et ses volets 36 et 37 rabattus. Les volets 36 et 37 permettent aussi de faciliter l'avancement du film tubulaire 4 autour de la gouttière 7 puisque ce dernier glisse sur les volets 36 et 37 rabattus et évite que des objets 2 à emballer ne gênent cet avancement.As shown in FIG. 13, the actuator 47 is actuated to bring the cam 49 to its low retracted position. Under the effect of the spring 46, the flaps 36 and 37 come to their folded position and compact the objects 2 to be packaged, the objects 2 to be packaged thus being confined in a tubular space formed by the gutter 7 and its flaps 36 and 37 folded. The flaps 36 and 37 also make it possible to facilitate the advancement of the tubular film 4 around the gutter 7 since the latter slides over the folded flaps 36 and 37 and prevents objects 2 to be packaged from hindering this advancement.
Le dispositif d'avancement 6 décrit plus haut pourrait comprendre des moyens de support et/ou de maintien complémentaires du guide longitudinal 8.The advancement device 6 described above could comprise means for supporting and / or holding complementary to the longitudinal guide 8.
En particulier, le dispositif d'avancement 6 pourrait comprendre, dans la zone des moyens de support et de maintien arrière 11 et 12, un moyen inférieur arrière de maintien et de support comprenant par exemple un galet intérieur à axe transversal, d'appui ou de réaction, porté par la poutre 9 et une roue extérieure à axe transversal, d'appui ou d'action, adapté pour venir en appui sur ce galet et laissant passer entre eux le film tubulaire 4. Un tel moyen complémentaire de support et de maintien pourrait être construit comme les moyens de support et de maintien 11 , 12, 13 et 14, et comprendre deux galets intérieurs.In particular, the advancement device 6 could comprise, in the area of the rear support and support means 11 and 12, a rear rear support and support means comprising for example an inner roller with transverse axis, support or of reaction, carried by the beam 9 and an outer wheel with transverse axis, of support or action, adapted to come to bear on this roller and allowing the tubular film 4 to pass between them. Such a complementary means of support and holding could be constructed as the support and holding means 11, 12, 13 and 14, and include two inner rollers.
On pourrait en outre prévoir deux moyens complémentaires inférieurs arrière de support et de maintien décalés transversalement.One could also provide two lower rear complementary means of support and holding offset transversely.
L'une quelconque des dispositions complémentaires ci-dessus serait en particulier nécessaire au cas où le centre de gravité de l' ensemble constitué du guide longitudinal 8 et de la gouttière 7, à vide, serait en arrière des moyens de support et de maintien avant 13 et 14.Any of the above additional provisions would be particularly necessary if the center of gravity of the assembly consisting of the longitudinal guide 8 and the gutter 7, when empty, is behind the front support and holding means. 13 and 14.
En se reportant maintenant aux figures 14 et 15, on va décrire un dispositif d' avancement 51 qui constitue une variante de réalisation du dispositif d'avancement 6 décrit précédemment.
Comme précédemment, ce dispositif d'avancement 51 comprend un guide longitudinal 52 qui . comprend une poutre intérieure longitudinale 53 entourée par une enveloppe longitudinale 54 de section ovale et appointée vers l'arrière. Le dispositif d'avancement 51 comprend deux moyens arrière opposés 55 et 56 et deux moyens avant opposés 57 et 58, agencés latéralement au guide longitudinal et prévus pour supporter et maintenir le guide longitudinal 52 et pour entraîner vers l'avant le film tubulaire 4. Chacun des moyens de support et de maintien 55 à 58 comprend un galet fou intérieur d'appui et de réaction 59 à axe vertical porté par la poutre 53 et une roue extérieure d'appui et d'action 60 à axe vertical portée par l'axe d'un moto-réducteur 61 fixé au bâti 62 de la machine d'emballage.Referring now to Figures 14 and 15, there will be described an advancement device 51 which constitutes an alternative embodiment of the advancement device 6 described above. As before, this advancement device 51 comprises a longitudinal guide 52 which. comprises a longitudinal inner beam 53 surrounded by a longitudinal envelope 54 of oval section and pointed backwards. The advancement device 51 comprises two opposite rear means 55 and 56 and two opposite front means 57 and 58, arranged laterally to the longitudinal guide and designed to support and hold the longitudinal guide 52 and to drive the tubular film 4 forward. Each of the support and holding means 55 to 58 comprises an idler internal support and reaction roller 59 with a vertical axis carried by the beam 53 and an external support and action wheel 60 with a vertical axis carried by the axis of a gear motor 61 fixed to the frame 62 of the packaging machine.
La roue extérieure 60 présente une gorge périphérique 63 sur les bords de laquelle sont ménagés des épaulements annulaires 64 et 65 radialement en saillie, ces épaulements 64 et 65 formant un N ouvert vers l' extérieur.The outer wheel 60 has a peripheral groove 63 on the edges of which are annular shoulders 64 and 65 radially projecting, these shoulders 64 and 65 forming an N open towards the outside.
Le galet 59 présente un épaulement périphérique 66 en saillie de section en N dont la pointe est dirigée vers l'extérieur. Le galet 59 et la roue 60 sont accouplés au travers d'une ouverture latérale 54a de l'enveloppe 54 de façon que l'épaulement périphérique 66 du galet 59 pénètre dans la gorge 63 de la roue extérieure 60, les flancs opposés de l'épaulement 66 étant respectivement en appui sur les flancs des épaulements 64 et 65 par des surfaces axialement espacées. Comme le montre plus précisément la figure 14, les moyens arrière de support et de maintien 55 et 56 sont disposés de telle sorte que leurs galets intérieurs 59 sont en avant par rapport à leur roue extérieure 60 et les moyens avant de support et de maintien 57 et 58 sont disposés de telle sorte que leurs galets intérieurs 59 sont en arrière de leur roue extérieure 60.The roller 59 has a peripheral shoulder 66 projecting from an N-shaped section, the point of which is directed outwards. The roller 59 and the wheel 60 are coupled through a lateral opening 54a of the casing 54 so that the peripheral shoulder 66 of the roller 59 penetrates into the groove 63 of the outer wheel 60, the opposite sides of the shoulder 66 being respectively supported on the sides of the shoulders 64 and 65 by axially spaced surfaces. As shown more precisely in FIG. 14, the rear support and holding means 55 and 56 are arranged so that their inner rollers 59 are in front with respect to their outer wheel 60 and the front support and holding means 57 and 58 are arranged so that their inner rollers 59 are behind their outer wheel 60.
Ainsi, de façon générale, les roues extérieures 60 des moyens de support et de maintien 56 à 58 déterminent un rectangle dans les coins desquels sont pris les galets intérieurs 59 de telle sorte que le guide
longitudinal 52 est suspendu et maintenu dans toutes les directions et ne peut pas tourner selon son axe longitudinal.Thus, in general, the outer wheels 60 of the support and holding means 56 to 58 determine a rectangle in the corners of which are taken the inner rollers 59 so that the guide longitudinal 52 is suspended and held in all directions and cannot rotate along its longitudinal axis.
Comme dans les exemples précédents, lorsque le film tubulaire 4 est engagée sur le guide longitudinal 52, il passe entre les galets intérieurs 59 et les roues extérieures 60 des moyens de support et de maintien 55 à 58 et peut être entraîné vers l'avant par les roues extérieures 60 sous l'effet des moto-réducteurs 61.As in the previous examples, when the tubular film 4 is engaged on the longitudinal guide 52, it passes between the inner rollers 59 and the outer wheels 60 of the support and holding means 55 to 58 and can be driven forward by the outer wheels 60 under the effect of the geared motors 61.
Dans une variante de réalisation, les moyens arrière de support et de maintien 55 et 56 et/ou les moyens avant de support et de maintien 57 et 58 pourraient comprendre deux galets intérieurs coopérant avec la roue 60, ces deux galets étant décalés longitudinalement.In an alternative embodiment, the rear support and holding means 55 and 56 and / or the front support and holding means 57 and 58 could comprise two internal rollers cooperating with the wheel 60, these two rollers being offset longitudinally.
En se reportant à la figure 16, on va maintenant décrire un autre dispositif d'avancement 67 correspondant fonctionnellement à ceux décrits précédemment. Comme dans les exemples précédents, ce dispositif d'avancementReferring to Figure 16, we will now describe another advancement device 67 corresponding functionally to those described above. As in the previous examples, this advancement device
67 comprend un guide longitudinal 68 qui comprend une poutre longitudinale intérieure 69 et une enveloppe longitudinale 70 de section ovale et appointée vers l'arrière.67 comprises a longitudinal guide 68 which comprises an inner longitudinal beam 69 and a longitudinal envelope 70 of oval section and pointed backwards.
Ce dispositif d'avancement 67 comprend en outre deux moyens supérieurs de support et d'entraînement 71 et 72 et deux moyens inférieurs de support et d' entraînement 73 et 74.This advancement device 67 further comprises two upper support and drive means 71 and 72 and two lower support and drive means 73 and 74.
Chacun des moyens de support et d'entraînement 71 à 74 comprend deux poulies 75 et 76 à axes parallèles décalés longitudinalement et sur lesquels est intallée une bande sans fin 77 s'étendant longitudinalement et dont un brin d'action est en appui sur la surface extérieure de l'enveloppe 70, le long d'une zone longitudinale de réaction, l'une de ces poulies étant portée par l' axe d'un moto-réducteur d'entraînement en rotation 78 porté par un bâti 67a.Each of the support and drive means 71 to 74 comprises two pulleys 75 and 76 with parallel axes offset longitudinally and on which is installed an endless band 77 extending longitudinally and one action of which is supported on the surface outside of the envelope 70, along a longitudinal reaction zone, one of these pulleys being carried by the axis of a geared motor for rotational drive 78 carried by a frame 67a.
Comme le montre plus précisément la figure 17, les moyens de support et d'entraînement 71 à 74 sont disposés de telle sorte que les brins de leur bande sans fin 77 constituent, en section transversale, un losange qui circonscrit l'enveloppe longitudinale 70. Ainsi, le guide longitudinal 68 est porté et ne peut pas tourner selon son axe longitudinal.
- Pour maintenir longitudinalement le guide longitudinal 68, le dispositif d'avancement 67 comprend deux moyens opposés 79 et 80 prévus respectivement au-dessus et au-dessous du guide longitudinal 68 et placés en arrière des moyens de support et d'entraînement 71 à 74. Chacun des moyens de maintien 79 et 80 comprend deux galets fous 81 et 82 à axes horizontaux et transversaux, décalés longitudinalement et portés par la poutre longitudinale 69 du guide longitudinal 68, ainsi qu'une roue extérieure 83 à axe vertical qui prend appui sur les galets 82 et 83 au travers d'une ouverture 84 ménagée dans l'enveloppe 70.As shown more precisely in FIG. 17, the support and drive means 71 to 74 are arranged so that the strands of their endless band 77 constitute, in cross section, a rhombus which circumscribes the longitudinal envelope 70. Thus, the longitudinal guide 68 is carried and cannot rotate along its longitudinal axis. - To maintain the longitudinal guide 68 longitudinally, the advancement device 67 comprises two opposite means 79 and 80 provided respectively above and below the longitudinal guide 68 and placed behind the support and drive means 71 to 74 Each of the holding means 79 and 80 comprises two idle rollers 81 and 82 with horizontal and transverse axes, offset longitudinally and carried by the longitudinal beam 69 of the longitudinal guide 68, as well as an outer wheel 83 with vertical axis which rests on the rollers 82 and 83 through an opening 84 formed in the envelope 70.
Comme dans les exemples précédents, le film tubulaire 4, engagé autour du guide longitudinal 68, passe longitudinalement au travers des moyens de maintien 79 et 80, en passant entre leurs galets intérieurs 81 et 82 et leur roue extérieure 83 et en passant entre les courroies d'entraînement 77 des moyens de support et d'entraînement 71 à 74 l'enveloppe longitudinale 70.As in the previous examples, the tubular film 4, engaged around the longitudinal guide 68, passes longitudinally through the holding means 79 and 80, passing between their inner rollers 81 and 82 and their outer wheel 83 and passing between the belts drive 77 of the support and drive means 71 to 74 the longitudinal envelope 70.
En activant le moto-réducteur 68 des moyens de support et d'entraînement 71 à 74, les courroies 77 de ces derniers entraînent vers l'avant le film tubulaire 4 qui glisse longitudinalement vers l'avant sur l'enveloppe 70 du guide longitudinal 68. Bien entendu, l' adhérence des courroies 77 sur la face extérieure du film tubulaire 4 doit être supérieure au frottement de la face intérieure du film tubulaire 4 sur la surface extérieure de l'enveloppe 70.By activating the gear motor 68 of the support and drive means 71 to 74, the belts 77 of the latter drive forward the tubular film 4 which slides longitudinally forward on the casing 70 of the longitudinal guide 68 Of course, the adhesion of the belts 77 on the outside face of the tubular film 4 must be greater than the friction of the inside face of the tubular film 4 on the outside surface of the envelope 70.
Dans une variante de réalisation, certains des moyens de support et d'entraînement 71 -74 à courroies pourraient être remplacés par des moyens à roues entraînées prenant appui sur la face extérieure du film tubulaire 4.In an alternative embodiment, some of the support and drive means 71 -74 with belts could be replaced by means with driven wheels bearing on the outside face of the tubular film 4.
En se reportant maintenant aux figures 18 et 19, on va décrire un autre dispositif d'avancement 85 correspondant fonctionnellement aux dispositifs d'avancement décrits précédemments.Referring now to Figures 18 and 19, we will describe another advancement device 85 corresponding functionally to the advancement devices described previously.
Comme précédemment, ce dispositif d' avancement 85 comprend un guide longitudinal 86 qui comprend une poutre intérieure longitudinale 87 entourée d'une enveloppe longitudinale 88 de section ovale et appointée vers l'arrière.
Ce dispositif d'avancement 85 comprend un moyen arrière inférieur de support et de maintien 89, un moyen supérieur arrière de support et de maintien 90 et un moyen inférieur avant de support et de maintien 89a, décalé longitudinalement par rapport aux premiers. Chacun des moyens 89 et 90 ci-dessus comprend deux galets fous intérieurs d'appui et de réaction 91 et 92, à axes transversaux décalés longitudinalement et portés par la poutre longitudinale 87 et une roue extérieure d' appui et d'action 93 à axe transversal, portée par l'extrémité de l'arbre d' entraînement d'un moto-réducteur 94 fixé au bâti 95 de la machine.As before, this advancement device 85 comprises a longitudinal guide 86 which comprises a longitudinal inner beam 87 surrounded by a longitudinal envelope 88 of oval section and pointed backwards. This advancement device 85 comprises a lower rear support and holding means 89, a rear upper support and holding means 90 and a lower front support and holding means 89a, longitudinally offset from the former. Each of the means 89 and 90 above comprises two internal idle support and reaction rollers 91 and 92, with transverse axes offset longitudinally and carried by the longitudinal beam 87 and an external support and action wheel 93 with axis transverse, carried by the end of the drive shaft of a geared motor 94 fixed to the frame 95 of the machine.
Sensiblement comme les moyens 55 à 58 de l'exemple décrit en référence aux figures 14 et 15, la roue extérieure 93 présente une gorge périphérique 96 sur les bords de laquelle sont ménagés des épaulements annulaires 97 et 98 radialement en saillie, ces épaulements 97 et 98 formant un N ouvert vers l' extérieur.Substantially like the means 55 to 58 of the example described with reference to FIGS. 14 and 15, the outer wheel 93 has a peripheral groove 96 on the edges of which are annular shoulders 97 and 98 radially projecting, these shoulders 97 and 98 forming an N open towards the outside.
Les galets 91 et 92 présentent respectivement un épaulement périphérique 99 en saillie de section en N dont la pointe est dirigée vers l'extérieur.The rollers 91 and 92 respectively have a peripheral shoulder 99 projecting in N section, the tip of which is directed outwards.
Les galets 91 et 92 sont accouplés à la roue 93 au travers d'une ouverture 100 ménagée dans l'enveloppe 88 de façon que l' épaulement périphérique 99 des galets 91 et 92 pénètre dans la gorge 96 de la roueThe rollers 91 and 92 are coupled to the wheel 93 through an opening 100 formed in the casing 88 so that the peripheral shoulder 99 of the rollers 91 and 92 penetrates into the groove 96 of the wheel
93, les flancs opposés de l'épaulement 99 étant respectivement en appui sur les flancs des épaulements 97 et 98.93, the opposite flanks of the shoulder 99 being respectively supported on the flanks of the shoulders 97 and 98.
Le moyen avant de support et de maintien 89a se différencie des moyens de support et de maintien 90 par le fait qu'il comprend uniquement un galet intérieur d'appui et de réaction 101 et une roue extérieure d' appui et d'action 102, respectivement à gorge et à épaulement périphériques accouplés au travers d'une ouverture 103 de l'enveloppe longitudinale 88, la roue extérieure 102 étant portée par l'axe d'un moto-réducteur d'entraînement. 94. Ce moyen 89a pourrait aussi comprendre deux galets intérieurs.The front support and holding means 89a differs from the support and holding means 90 by the fact that it only comprises an internal support and reaction roller 101 and an external support and action wheel 102, respectively with peripheral grooves and shoulders coupled through an opening 103 of the longitudinal casing 88, the outer wheel 102 being carried by the axis of a drive gear motor. 94. This plea 89a could also include two inner rollers.
Les moyens de support et de maintien 89, 90 et 89a sont agencés de telle sorte que les plans radiaux médians de leurs galets 91 et 92 et de leur roue 93 soient situés dans le plan longitudinal et vertical de
symétrie ou médian du guide longitudinal 86, le moyen inférieur de support et de maintien 89 étant placé symétriquement- à l' opposé du moyen supérieur de support et de maintien 90 et le moyen inférieur de support et de maintien 89a étant décalé vers l'avant. Ainsi, le guide longitudinal 86 est suspendu et maintenu dans toutes les directions et ne peut pas tourner selon son axe longitudinale, sa partie avant étant uniquement portée par en dessous par la roue extérieure 102 du moyen de support et de maintien avant 89a.The support and holding means 89, 90 and 89a are arranged so that the median radial planes of their rollers 91 and 92 and of their wheel 93 are located in the longitudinal and vertical plane of symmetry or median of the longitudinal guide 86, the lower support and holding means 89 being placed symmetrically opposite the upper support and holding means 90 and the lower support and holding means 89a being shifted forward . Thus, the longitudinal guide 86 is suspended and held in all directions and cannot rotate along its longitudinal axis, its front part being only carried from below by the outer wheel 102 of the front support and holding means 89a.
Bien entendu, un moyen supérieur avant de support et de maintien pourrait également être prévu au dessus du guide longitudinal 86, par exemple symétriquement au moyen inférieur avant de support et de maintien 89a.Of course, an upper front support and holding means could also be provided above the longitudinal guide 86, for example symmetrically to the lower front support and holding means 89a.
Comme dans les exemples précédents, lorsque le film tubulaire 4 est engagé sur le guide longitudinal 86, il passe entre respectivement les galets intérieurs 91 , 92 et 101 et les roues extérieures 93 et 102 des moyens de support et de maintien 89, 90 et 89a et peut être entraîné vers l'avant sous l' effet des moto-réducteurs 94 reliés respectivement aux roues extérieures 93 et 102.As in the previous examples, when the tubular film 4 is engaged on the longitudinal guide 86, it passes between the inner rollers 91, 92 and 101 and the outer wheels 93 and 102 respectively of the support and holding means 89, 90 and 89a and can be driven forward under the effect of the geared motors 94 connected respectively to the outer wheels 93 and 102.
D'une manière générale, comme le montre la figure 17, au moins certains des galets et des roues précitées peuvent présenter une bague annulaire périphérique par exemple en caoutchouc ou en une autre matière adhérente et/ou légèrement élastiquement compressible.In general, as shown in FIG. 17, at least some of the aforementioned rollers and wheels may have an annular peripheral ring, for example made of rubber or another adherent and / or slightly elastically compressible material.
En se reportant aux figures 20 à 30, on va maintenant décrire une autre machine d'emballage 200 constituée de la manière suivante. La machine d'emballage 200 comprend un dispositif d'avancement 201 dont la structure peut correspondre à l'un quelconque des dispositifs d'avancement précédemment décrits, dans le but de faire avancer un film tubulaire 202 stocké dans une bobine 203.Referring to Figures 20 to 30, we will now describe another packaging machine 200 constituted as follows. The packaging machine 200 comprises a advancement device 201, the structure of which can correspond to any of the advancement devices previously described, with the aim of advancing a tubular film 202 stored in a reel 203.
Comme dans les exemples précédents, le dispositif d'avancement 201 comprend un guide longitudinal 204 autour duquel le film tubunlaire peut avancer longitudinalement. L'enveloppe de ce guide longitudinal 204 se prolonge vers l'avant par une portion de gouttière longitudinale 205.
Un peu en amont de cette gouttière 205, la machine d' emballage 200 présente des moyens de découpe circulaire 206 correspondant aux moyens de découpe décrits précédemment.As in the previous examples, the advancement device 201 comprises a longitudinal guide 204 around which the tubular film can advance longitudinally. The envelope of this longitudinal guide 204 is extended forward by a portion of longitudinal gutter 205. A little upstream of this gutter 205, the packaging machine 200 has circular cutting means 206 corresponding to the cutting means described above.
La machine d'emballage 200 comprend en outre une gouttière longitudinale 207 qui s'étend longitudinalement au dispositif d'avancement 201 et dont la partie aval est fixée sur un support 208. La partie supérieure de ce support 208 est montée coulissante sur une glissière longitudinale 209. Le support 208 et la gouttière 209 présentent des moyens complémentaires permettant le déplacement longitudinal du support 208 et en conséquence de la gouttière 207. Ainsi, la gouttièreThe packaging machine 200 further comprises a longitudinal gutter 207 which extends longitudinally to the advancement device 201 and the downstream part of which is fixed on a support 208. The upper part of this support 208 is slidably mounted on a longitudinal slide 209. The support 208 and the gutter 209 have complementary means allowing the longitudinal displacement of the support 208 and consequently of the gutter 207. Thus, the gutter
207 est portée en porte-à-faux par le support 208 et s'étend vers l'amont.207 is carried in overhang by the support 208 and extends upstream.
Sur une courte longueur, la partie d'extrémité aval de la gouttièreOver a short length, the downstream end part of the gutter
207 présente une partie cylindrique 207a.207 has a cylindrical part 207a.
Le support 208 porte un doigt escamotable 210, relié à des moyens d' entraînement connus en soi, disposé de telle sorte qu'il peut venir en appui sur la partie cylindrique 207a de la gouttière 207 et en être écarté.The support 208 carries a retractable finger 210, connected to drive means known per se, arranged so that it can come to bear on the cylindrical part 207a of the gutter 207 and be removed therefrom.
Juste en amont de l'extrémité aval de la portion de gouttière 205, la machine d'emballage 200 présente des moyens amont de soudage à chaud 211 correspondant à ceux décrits précédemment, dont uniquement les mors escamotables sont représentés.Just upstream of the downstream end of the gutter portion 205, the packaging machine 200 has upstream heat welding means 211 corresponding to those described above, of which only the retractable jaws are shown.
Juste en amont des moyens de soudage amont 211 , la machine d' emballage 200 présente des organes de maintien constituant une pince 212 dont les mors sont escamotables et actionnables par des moyens connus en soi.Just upstream from the upstream welding means 211, the packaging machine 200 has holding members constituting a clamp 212 whose jaws are retractable and actuable by means known per se.
Dans une variante, les moyens de soudage 21 1 et la pince 212 pourraient être couplés.Alternatively, the welding means 21 1 and the clamp 212 could be coupled.
En aval de l'organe de maintien 212, la machine d'emballage 200 comprend une gouttière complémentaire inférieure de réception 213 qui s'étend longitudinalement en dessous et à faible distance de la zone de déplacement de la gouttière 207. Cette gouttière est montée pivotante sur un axe longitudinal 213a relié à des moyens d'entraînement connus en soi et adaptés pour qu'elle puisse occuper une position horizontale visible sur la figure 29 et une position basculée visible sur la figure 30.
En aval de la gouttière complémentaire inférieure 213, la machine d'emballage 200 comprend des moyens aval de soudage 216, dont uniquement les mors escamotables sont représentés.Downstream of the retaining member 212, the packaging machine 200 comprises a complementary complementary receiving gutter 213 which extends longitudinally below and at a short distance from the displacement zone of the gutter 207. This gutter is pivotally mounted on a longitudinal axis 213a connected to drive means known per se and adapted so that it can occupy a horizontal position visible in FIG. 29 and a tilted position visible in FIG. 30. Downstream of the lower complementary gutter 213, the packaging machine 200 comprises downstream welding means 216, of which only the retractable jaws are shown.
La machine d'emballage 200 peut fonctionner de la manière suivante.The packaging machine 200 can operate in the following manner.
Dans une position initiale représentée sur la figure 20, le supportIn an initial position shown in FIG. 20, the support
208 est avancé vers l' amont en direction du dispositif d'avancement 201 de façon à ce que l'extrémité libre amont de la gouttière 207 vienne légèrement à l'intérieur de la portion de gouttière 205 comme le montre plus particulièrement la figure 28.208 is advanced upstream in the direction of the advancement device 201 so that the upstream free end of the gutter 207 comes slightly inside the gutter portion 205 as shown more particularly in FIG. 28.
Le doigt de maintien 210 est à sa position écartée.The retaining finger 210 is in its separated position.
La portion de gouttière 205 et la gouttière 207 constituent alors une zone longitudinale 214 de réception d'objets allongés à emballer 215. On dépose, par exemple automatiquement à l'aide de moyens adaptés, des objets à emballer 215 longitudinalement dans cette zone longitudinale de réception 214, c'est-à-dire dans la gouttière 207, en prenant soin que la partie d'extrémité amont des objets 215 s'étende dans la portion de gouttière 205.. Comme le montre la figure 21 , l'opération suivante consiste à activer le dispositif d'avancement 201 de façon à faire avancer vers l'aval le film tubulaire 202, autour de la portion de gouttière 205 et de la gouttière 207, en passant au-dessus des objets 215 déposés, ce jusqu'à ce que le film tubulaire 202 atteigne l'extrémité aval de la gouttière 207 et enveloppe son extrémité cylindrique 207a.The gutter portion 205 and the gutter 207 then constitute a longitudinal zone 214 for receiving elongated objects to be packaged 215. Objects to be packaged 215 are deposited, for example automatically using suitable means, longitudinally in this longitudinal zone of reception 214, that is to say in the gutter 207, taking care that the upstream end portion of the objects 215 extends in the gutter portion 205. As shown in FIG. 21, the following operation consists in activating the advancement device 201 so as to advance downstream the tubular film 202, around the gutter portion 205 and the gutter 207, passing over the objects 215 deposited, this until that the tubular film 202 reaches the downstream end of the gutter 207 and envelops its cylindrical end 207a.
Comme le montre la figure 22, l'opération suivante consiste à manœuvrer le doigt de maintien 210 de façon à ce qu' il vienne pincer la partie aval du film tubulaire 200 entre son extrémité et la partie cylindrique 207a de la gouttière 207. En même temps, on active les moyens de découpe circulaire 206, de façon à séparer la portion aval 202a du film tubulaire 202 renfermant les objets 215.As shown in FIG. 22, the following operation consists in operating the retaining finger 210 so that it comes to pinch the downstream part of the tubular film 200 between its end and the cylindrical part 207a of the gutter 207. At the same time time, the circular cutting means 206 are activated, so as to separate the downstream portion 202a from the tubular film 202 containing the objects 215.
Comme le montre la figure 23, l'opération suivante consiste à déplacer vers l'aval le support 208 pour entraîner la gouttière 207
portant les objets 215 et la portion de film tubulaire 202a tenue par le doigt 210, jusqu'à ce que la portion de film 202a soit extraite de la goutière 205 et que l' extrémité libre amont de la gouttière 207 soit placée juste en aval de la pince 212, la gouttière 207 étant alors dans une position longitudinale intermédiaire.As shown in FIG. 23, the following operation consists in moving the support 208 downstream to drive the gutter 207 carrying the objects 215 and the portion of tubular film 202a held by the finger 210, until the portion of film 202a is extracted from the gutter 205 and the free upstream end of the gutter 207 is placed just downstream of the clamp 212, the gutter 207 then being in an intermediate longitudinal position.
Comme le montre la figure 24, l'opération suivante consiste à activer les moyens de soudage amont 21 1 , de manière à écraser et souder thermiquement l'extrémité amont de la portion de film tubulaire 202a, et à relever le doigt 210. Comme le montre la figure 25, l'opération suivante consiste à activer la pince 212 de façon à serrer la partie amont de la portion de film tubulaire 202a et la partie amont des objets 215 qu' elle contient. Le paquet étant ainsi maintenue, l'opération suivante consiste à déplacer vers l'aval le support 208 pour déplacer la gouttière 207 vers l'aval, jusqu'à ce que cette gouttière 207 soit complètement extraite de la portion de film tubulaire 202a et atteignet une position reculée.As shown in FIG. 24, the following operation consists in activating the upstream welding means 21 1, so as to crush and thermally weld the upstream end of the portion of tubular film 202a, and to raise the finger 210. As the shown in FIG. 25, the following operation consists in activating the clamp 212 so as to clamp the upstream part of the tubular film portion 202a and the upstream part of the objects 215 that it contains. The package being thus maintained, the following operation consists in moving the support 208 downstream to move the gutter 207 downstream, until this gutter 207 is completely extracted from the portion of tubular film 202a and reaches a remote position.
Ce faisant, la portion de film tubulaire 202a et les objets 215 qu' elle contient se déposent longitudinalement sur la gouttière de réception complémentaire inférieure 213 , progressivement. Comme le montre la figure 26, l'opération suivante consiste à activer les moyens de soudage aval 216 de façon à écraser et souder thermiquement l'extrémité aval de la portion de film tubulaire 202a.In doing so, the portion of tubular film 202a and the objects 215 which it contains are deposited longitudinally on the lower complementary receiving gutter 213, progressively. As shown in FIG. 26, the following operation consists in activating the downstream welding means 216 so as to crush and thermally weld the downstream end of the portion of tubular film 202a.
On obtient alors un paquet longitudinal 217 renfermant les objets 215 dans la portion de film tubulaire 202a dont les extrémités sont fermées.One then obtains a longitudinal pack 217 containing the objects 215 in the portion of tubular film 202a, the ends of which are closed.
Comme le montrent les figures 29 et 30, l'opération suivante consiste à faire pivoter la gouttière complémentaire inférieure 213 autour de son axe longitudinal 213a de façon à évacuer par gravité le paquet 217 obtenu. On peut alors replacer la gouttière complémentaire inférieure 213 à sa position initiale et replacer le support 208 et la gouttière 207 à sa position avancée pour recommencer les opérations d' emballage décrites ci-dessus.
En se reportant aux figures 31 à 45, on va maintenant décrire une autre machine d' emballage 300 contituée de la manière suivante.As shown in Figures 29 and 30, the following operation consists in pivoting the lower complementary gutter 213 around its longitudinal axis 213a so as to evacuate by gravity the package 217 obtained. We can then replace the lower complementary gutter 213 to its initial position and replace the support 208 and the gutter 207 in its advanced position to start the packaging operations described above. Referring to Figures 31 to 45, we will now describe another packaging machine 300 contituée as follows.
Comme la machine 200, cette machine d'emballage 300 comprend un dispositif d' avancement 301 pour faire avancer un film tubulaire 302 stocké dans une bobine 303, le dispositif d'avancement 301 comprenant un guide longitudinal 304 muni à sa partie amont d'une portion de gouttière 305 et des moyens de découpe circonférentielle 306 étant prévus en amont de cette portion de gouttière.Like the machine 200, this packaging machine 300 comprises an advancement device 301 for advancing a tubular film 302 stored in a reel 303, the advancement device 301 comprising a longitudinal guide 304 provided at its upstream part with a gutter portion 305 and circumferential cutting means 306 being provided upstream of this gutter portion.
La machine d'emballage 300 comprend, en aval du dispositif d'avancement 301 , une multiplicité de groupes de réception 307, dans l'exemple au nombre de trois, espacés longitudinalement et comprenant respectivement deux rouleaux 308 et 309 portés par des supports 310 et 311 respectivement montés sur des glissières 312 et 313, arrangés de telle sorte que les rouleaux 308 et 309 soient disposés à 90° l'un par rapport à l'autre de façon à constituer un N ouvert vers le haut et que les glissières 312 et 313 soient disposées à 90° l'une par rapport à l' autre en formant un N ouvert vers le bas.The packaging machine 300 comprises, downstream of the advancement device 301, a multiplicity of reception groups 307, in the example three in number, spaced longitudinally and comprising respectively two rollers 308 and 309 carried by supports 310 and 311 respectively mounted on runners 312 and 313, arranged so that the rollers 308 and 309 are arranged at 90 ° relative to each other so as to constitute an N open upwards and that the runners 312 and 313 are arranged at 90 ° relative to each other by forming an N open downwards.
Les supports 310 et 311 portent des moteurs 308a et 309a pour l' entraînement en rotation des rouleaux 308 et 309. Les supports 310 et 31 1 et les glissières 312 et 313 sont équipés de moyens complémentaires d'entraînement tels que les rouleaux 308 et 309 sont déplaçables simultanément entre une position haute ou relevée dans laquelle leurs parties d'extrémité inférieure s'étendent à proximité l'une de l'autre, de façon que les rouleaux 308 et 309 des groupes de réception 307 définissent une zone de réception 314 s'étendant longitudinalement en face et en aval du dispositif d'avancement 301 , et une position basse dans laquelle ils sont abaissés et éloignés l'un de l' autre.The supports 310 and 311 carry motors 308a and 309a for driving the rollers 308 and 30 in rotation. The supports 310 and 31 1 and the slides 312 and 313 are equipped with complementary drive means such as the rollers 308 and 309 are movable simultaneously between a raised or raised position in which their lower end portions extend close to each other, so that the rollers 308 and 309 of the reception groups 307 define a reception zone 314 s 'extending longitudinally opposite and downstream of the advancement device 301, and a low position in which they are lowered and spaced from each other.
La machine d'emballage 300 comprend en outre, en aval des groupes de réception 307, un support 315 dont la partie supérieure est montée sur une glissière longitudinale 316 et qui porte une pince 317 et des moyens de soudage 318, les mors de la pince 317 et ceux des moyens de soudage 318 étant couplés de façon à être actionnés simultanément.
Par ailleurs, la portion de gouttière 215 est équipée de deux volets longitudinaux 319 articulés sur ses bords longitudinaux 320, ces volets 319 étant manoeuvrables entre une position ouverte et une position rabattue par des moyens correspondant par exemple à ceux décrits en référence aux figures 10 et 11.The packaging machine 300 further comprises, downstream of the reception groups 307, a support 315 the upper part of which is mounted on a longitudinal slide 316 and which carries a clamp 317 and welding means 318, the jaws of the clamp 317 and those of the welding means 318 being coupled so as to be actuated simultaneously. Furthermore, the gutter portion 215 is equipped with two longitudinal flaps 319 articulated on its longitudinal edges 320, these flaps 319 being maneuverable between an open position and a folded position by means corresponding for example to those described with reference to FIGS. 10 and 11.
La machine d'emballage 300 décrite ci-dessus peut fonctionner de la manière suivante.The packaging machine 300 described above can operate in the following manner.
Dans une position initiale représentée sur les figures 31 , 32 et 33, les rouleaux 308 et 309 des groupes de réception 307 sont à leur position haute et définissent la zone de réception longitudinale 314, les volets 319 portés par la portion de gouttière 305 sont ouverts, le support 315 est à sa position amont, et la pince 317 et les moyens de soudage 318 étant ouverts.In an initial position shown in FIGS. 31, 32 and 33, the rollers 308 and 309 of the reception groups 307 are in their high position and define the longitudinal reception zone 314, the flaps 319 carried by the gutter portion 305 are open , the support 315 is in its upstream position, and the clamp 317 and the welding means 318 being open.
Dans cette position initiale, on peut déposer dans la zone de réception 314 des obj ets allongés à emballer 312, en les déposant dans les N déterminés par les rouleaux 308 et 309 des groupes de réceptionIn this initial position, it is possible to deposit in the reception zone 314 elongated objects to be packaged 312, by depositing them in the N determined by the rollers 308 and 309 of the reception groups.
307 et en prenant soin que leur extrémité amont soit dans la gouttière 305.307 and taking care that their upstream end is in the gutter 305.
Ensuite, comme le montrent les figures 34, 35 et 36, on rabat les volets 319, ces derniers confinant les parties d'extrémité amont des objets 321 et les maintenant assez fermement.Then, as shown in FIGS. 34, 35 and 36, the flaps 319 are folded down, the latter confining the upstream end parts of the objects 321 and holding them fairly firmly.
Puis, on active le dispositif d'avancement 301 de manière à faire avancer vers l' aval le film tubulaire 302. Au fur et à mesure de cet avancement longitudinal, le film tubulaire 302 enveloppe les objets 321. Comme le montre plus précisément la figure 34, avant que le film tubulaire 302 n'atteigne le premier groupe de réception 307, on déplace ses rouleaux 308 et 309 vers le bas de manière à les écarter latéralement des objets 321 pour laisser passer le film tubulaire 302.Then, the advancement device 301 is activated so as to advance the tubular film 302 downstream. As this longitudinal advancement proceeds, the tubular film 302 envelops the objects 321. As shown more precisely in the figure 34, before the tubular film 302 reaches the first receiving group 307, its rollers 308 and 309 are moved downwards so as to separate them laterally from the objects 321 to allow the tubular film 302 to pass.
Lorsque le film tubulaire 302 a passé le premier groupe de réception 307, on ramène à leur position haute ses rouleaux 308 et 309 et on active les moteurs 308a et 309a de façon à faire tourner les rouleauxWhen the tubular film 302 has passed the first receiving group 307, its rollers 308 and 309 are returned to their high position and the motors 308a and 309a are activated so as to rotate the rollers
308 et 309 à la vitesse d' avancement du film tubulaire 302.308 and 309 at the speed of advance of the tubular film 302.
Comme le montrent les figures 37, 38 et 39, avant que le film tubulaire 302 n'atteigne le deuxième groupe de réception 307, on déplace
ses rouleaux 308 et 309 vers le bas pour, comme précédemment, laisser passer le film tubulaire 302. Puis on les ramène à leur position haute et on active leur rotation à la vitesse de déplacement du film tubulaire 302.As shown in FIGS. 37, 38 and 39, before the tubular film 302 reaches the second receiving group 307, one moves its rollers 308 and 309 downwards so as to let the tubular film 302 pass. Then they are brought back to their high position and their rotation is activated at the speed of movement of the tubular film 302.
Comme le montre la figure 40, on effectue les mêmes opérations sur le troisième groupe de réception 307, et ainsi de suite pour les groupes de réception suivants, le nombre de groupes de réception 307 dépendant de la longueur des objets 321 et Pécartement entre eux dépendant de la rigidité de ces objets.As shown in FIG. 40, the same operations are carried out on the third reception group 307, and so on for the following reception groups, the number of reception groups 307 depending on the length of the objects 321 and the spacing between them depending the rigidity of these objects.
Les volets 319 exerçant dans la gouttière 305 une pression suffisamment forte sur l'extrémité amont des objets 321, ces derniers sont maintenus et ne se déplacent pas vers l'aval sous l' effet de la rotation des rouleaux 308 et 309 des groupes de réception 307,.The flaps 319 exerting in the gutter 305 a sufficiently strong pressure on the upstream end of the objects 321, the latter are maintained and do not move downstream under the effect of the rotation of the rollers 308 and 309 of the receiving groups 307 ,.
Comme le montre la figure 41 , lorsque le film tubulaire 302 est suffisamment avancé de façon à complètement renfermer longitu- dinalement les objets 321 , on stoppe le dispositif d'avancement 301.As shown in FIG. 41, when the tubular film 302 is sufficiently advanced so as to completely enclose the objects 321 longitudinally, the advancement device 301 is stopped.
Puis, on actionne les moyens de découpe circulaire 305 de manière à séparer la portion avancée 302a du film tubulaire 302 et on actionne la pince 317 de façon à ce qu' elle prenne entre ses mors la portion de film tubulaire 302a et la partie d'extrémité aval des objets 321 qu'elle renferme et à ce que le moyen de soudage aval 318 presse et soude thermiquement l'extrémité aval de la portion de film tubulaire 302a, en aval de l'extrémité des objets 321.Then, the circular cutting means 305 are actuated so as to separate the advanced portion 302a from the tubular film 302 and the clamp 317 is actuated so that it takes between its jaws the portion of tubular film 302a and the portion of downstream end of the objects 321 which it contains and so that the downstream welding means 318 press and thermally weld the downstream end of the portion of tubular film 302a, downstream from the end of the objects 321.
Comme le montre la figure 42, l'opération suivante consiste à déplacer vers l'aval le support 315 et à faire tourner les rouleaux 308 et 309, de telle sorte que la portion de film tubulaire 302a et les objets longitudinaux 321 qu' elle renferme se déplace jusqu'à une position reculée dans laquelle l'extrémité amont des objets 321 aient juste dépassé des moyens de soudage amont 322.As shown in FIG. 42, the following operation consists in moving the support 315 downstream and in rotating the rollers 308 and 309, so that the portion of tubular film 302a and the longitudinal objects 321 which it contains moves to a remote position in which the upstream end of the objects 321 have just protruded from the upstream welding means 322.
Puis, comme le montre la figure 43, on actionne les moyens de soudage amont 322 de manière à presser et souder thermiquement l'extrémité amont de la portion de film tubulaire 302a.Then, as shown in FIG. 43, the upstream welding means 322 are actuated so as to press and thermally weld the upstream end of the portion of tubular film 302a.
En même temps, on ouvre la pince 317 et les moyens de soudage 318.
On obtient alors un paquet 323 renfermant des objets longitudinaux 321 dans la -portion de film tubulaire 302a.At the same time, the clamp 317 and the welding means 318 are opened. A packet 323 is then obtained containing longitudinal objects 321 in the portion of tubular film 302a.
Enfin, comme le montrent les figures 44 et 45, on déplace vers le bas les rouleaux 308 et 309 des groupes de réception 307 de façon à dégager un espace vertical dans lequel le paquet 323 est évacué par gravité.Finally, as shown in FIGS. 44 and 45, the rollers 308 and 309 of the receiving groups 307 are moved downwards so as to release a vertical space in which the packet 323 is evacuated by gravity.
On peut alors recommencer les opérations qui viennent d'être décrites pour constituer un nouveau paquet 323.We can then start again the operations which have just been described to constitute a new package 323.
En se reportant aux figures 46 à 49, on va maintenant décrire un dispositif d'avancement 400 dont la section est réglable de façon à pouvoir être adaptée à des films tubulaires de sections différentes.Referring to Figures 46 to 49, we will now describe a advancement device 400 whose section is adjustable so that it can be adapted to tubular films of different sections.
Ce dispositif d'avancement 400 comprend un guide longitudinal 401 qui comprend une poutre centrale longitudinale 402, de section rectangulaire placée verticalement. La poutre 402 porte latéralement, de part et d'autre, des goussets avant 403 et 404 et des goussets arrière 405 et 406 sur lesquels sont montés respectivement des bras avant 407 et 408 et des bras arrière 409 et 410, par l'intermédiaire d'axes verticaux avant 412 et 413 et d'axes verticaux arrière 414 et 415. Le guide longitudinal 401 comprend en outre des supports longitudinaux 416 et 417 qui sont allongés de part et d'autre de la poutre centrale 402 et qui sont respectivement montés sur les extrémités libres des bras 407 et 409 par l'intermédiaire d'axes verticaux 418 et 419 et sur l'extrémité libre des bras 408 et 410 par l'intermédiaire d'axes verticaux 420 et 421.This advancement device 400 comprises a longitudinal guide 401 which comprises a longitudinal central beam 402, of rectangular section placed vertically. The beam 402 carries laterally, on either side, front gussets 403 and 404 and rear gussets 405 and 406 on which are respectively mounted front arms 407 and 408 and rear arms 409 and 410, via d 'front vertical axes 412 and 413 and rear vertical axes 414 and 415. The longitudinal guide 401 further comprises longitudinal supports 416 and 417 which are elongated on either side of the central beam 402 and which are respectively mounted on the free ends of the arms 407 and 409 by means of vertical axes 418 and 419 and on the free end of the arms 408 and 410 by means of vertical axes 420 and 421.
Ainsi, d'une part les axes verticaux 412, 414, 418 et 419 déterminent un parallélogramme déformable horizontalement permettant de faire varier l'écart entre la poutre centrale 42 et le support longitudinal 416 et, d'autre part, les axes verticaux 413 , 415, 420 et 421 définissent un parallélogramme déformable permettant de faire varier l'écart entre la poutre centrale 402 et le support longitudinal 417.Thus, on the one hand the vertical axes 412, 414, 418 and 419 determine a horizontally deformable parallelogram making it possible to vary the distance between the central beam 42 and the longitudinal support 416 and, on the other hand, the vertical axes 413, 415, 420 and 421 define a deformable parallelogram making it possible to vary the difference between the central beam 402 and the longitudinal support 417.
Les bras avant 407 et 408 présentent des dentures concentriques aux axes 412 et 413 et en prise avec des crémaillères ménagées de part et
d'autre sur un coulisseau avant 422 disposé dans un passage longitudinal 423 ménagé au travers de la poutre centrale 402.The front arms 407 and 408 have teeth which are concentric with the axes 412 and 413 and which engage with racks arranged on either side. on the other on a front slide 422 disposed in a longitudinal passage 423 formed through the central beam 402.
De même, les bras arrière 409 et 410 présentent des dentures centrées sur des axes 414 et 415 et en prise avec des crémaillères prévues de part et d' autre d'un coulisseau arrière 424 disposé dans un passage longitudinal 425 ménagé au travers de la poutre centrale 402.Similarly, the rear arms 409 and 410 have teeth centered on axes 414 and 415 and engaged with racks provided on either side of a rear slide 424 disposed in a longitudinal passage 425 formed through the beam central 402.
Ainsi, les supports longitudinaux 416 et 417 sont accouplés de façon à se déplacer simultanément en se rapprochant ou s' éloignant de la poutre centrale 402, en même temps que les coulisseaux 422 et 424 se déplacent longitudinalement dans les passages 423 et 424 dans le même sens.Thus, the longitudinal supports 416 and 417 are coupled so as to move simultaneously while approaching or moving away from the central beam 402, at the same time as the slides 422 and 424 move longitudinally in the passages 423 and 424 in the same meaning.
Les coulisseaux 423 et 424 sont sollicités respectivement par des ressorts 426 et 427 qui sont disposés dans les passages 423 et 425 de la poutre centrale 42 de façon à les déplacer longitudinalement dans le sens qui écarte les supports longitudinaux 416 et 417 de la poutre centraleThe slides 423 and 424 are stressed respectively by springs 426 and 427 which are arranged in the passages 423 and 425 of the central beam 42 so as to move them longitudinally in the direction which separates the longitudinal supports 416 and 417 from the central beam
402.402.
De façon équivalente à l'exemple décrit en référence en particulier à la figure 2, les supports longitudinaux 416 et 417 portent respectivement quatre trains intérieurs 428 et 429 de deux rouleaux chacun, décalés deux à deux horizontalement et disposés deux à deux àEquivalently to the example described with particular reference to FIG. 2, the longitudinal supports 416 and 417 respectively carry four inner trains 428 and 429 of two rollers each, offset two by two horizontally and arranged two by two at
45° par rapport à un plan horizontal.45 ° with respect to a horizontal plane.
Enfin, les supports 416 et 417 portent des portions longitudinales d'enveloppe 430 et 431 , espacées, telles que le guide longitudinal 401 présente une section sensiblement ovale dont la section varie en fonction de la position latérale des supports longitudinaux 416 et 417 par rapport à la poutre longitudinale 402.Finally, the supports 416 and 417 carry longitudinal envelope portions 430 and 431, spaced apart, such that the longitudinal guide 401 has a substantially oval section whose section varies as a function of the lateral position of the longitudinal supports 416 and 417 relative to the longitudinal beam 402.
De façon également équivalente à l'exemple décrit en référence en particulier à la figure 2, le dispositif d' avancement 400 comprend d'une part quatre galets extérieurs 432 venant en appui contre les galets des trains 428 et quatre galets extérieurs 434 venant en appui contre les galets des trains 429.Also equivalent to the example described with particular reference to FIG. 2, the advancement device 400 comprises on the one hand four external rollers 432 bearing against the rollers of the trains 428 and four external rollers 434 bearing against the rollers of trains 429.
Les quatre galets 432 et les quatre galets 434 sont respectivement portés par des blocs d' entraînement en rotation 435 et 436 qui sont fixés
sur des coulisseaux 437 et 438 montés sur des barres transversales fixes" 439.The four rollers 432 and the four rollers 434 are respectively carried by rotary drive blocks 435 and 436 which are fixed on slides 437 and 438 mounted on fixed transverse bars "439.
Les coulisseaux 437 et 438 sont accouplés à une vis transversale de réglage 440 qui présente un épaulement annulaire 441 en prise dans une gorge 442 d'une portion de châssis 443 afin de l'immobiliser dans le sens de son axe. Cette vis 440 présente des filets 444 et 445 à pas inversés en prise avec les coulisseaux 437 et 438, la vis 440 portant à l'une de ses extrémités un volant de manœuvre 446.The slides 437 and 438 are coupled to a transverse adjustment screw 440 which has an annular shoulder 441 engaged in a groove 442 of a chassis portion 443 in order to immobilize it in the direction of its axis. This screw 440 has threads 444 and 445 with inverted pitch engaged with the slides 437 and 438, the screw 440 carrying at one of its ends a handwheel 446.
Il résulte de ce qui précède que lorsque l'on fait tourner la vis 440 dans un sens ou dans l' autre, on déplace les coulisseaux 437 et 438 dans le sens qui les rapproche ou dans le sens qui les éloigne et en même temps on déplace les galets extérieurs 432 et les galets extérieurs 434 dans le sens qui les rapproche ou qui les éloigne.It follows from the above that when the screw 440 is rotated in one direction or the other, the slides 437 and 438 are moved in the direction that brings them together or in the direction that moves them away and at the same time moves the outer rollers 432 and the outer rollers 434 in the direction that brings them together or away from them.
Comme les trains de galets intérieurs 438 et 429 sont sollicités en permanence pour rester en contact avec les galets extérieurs 432 et 434, sous l'effet des ressorts 426 et 427, en même temps que les galets extérieurs se rapprochent ou s'éloignent, les supports longitudinaux 416 et 417 du guide longitudinal 401 se rapprochent ou s'éloignent, de telle sorte que la section déterminée par les portions d'enveloppe longitudinales 430 et 431 se réduit ou augmente.As the inner roller trains 438 and 429 are permanently stressed to remain in contact with the outer rollers 432 and 434, under the effect of the springs 426 and 427, at the same time as the outer rollers approach or move away, the longitudinal supports 416 and 417 of the longitudinal guide 401 approach or move away, so that the section determined by the longitudinal envelope portions 430 and 431 is reduced or increased.
Ainsi, il est possible de régler la section du guide longitudinal 401 de façon à l'adapter à la section du film tubulaire que le dispositif d'avancement 400 doit faire progresser vers l'avant, simplement en manoeuvrant le volant 446. Il est en outre possible d'opérer un ajustement de la section du guide longitudinal 401 à n'importe quel moment au cours de l' avancement du film tubulaire.Thus, it is possible to adjust the section of the longitudinal guide 401 so as to adapt it to the section of the tubular film that the advancement device 400 must advance forwards, simply by operating the flywheel 446. It is in in addition possible to make an adjustment of the section of the longitudinal guide 401 at any time during the advancement of the tubular film.
Par ailleurs, les parties avant des portions d'enveloppe 430 et 431 portent des peignes 447 et 448 qui présentent des dents 449 et 450 transversales qui sont susceptibles de pénétrer plus ou moins les unes entre les autres lorsque les portions longitudinales d'enveloppe 430 et 431 se rapprochent ou s'éloignent, de façon à déterminer une gouttière ou une portion de gouttière de section variable, dans le prolongement de la section ovale mentionnée plus haut.
Le dispositif d'avancement 400 décrit en référence aux figures 46 à 49 pourrait tout aussi- bien comprendre l'un quelconque des moyens de maintien et d'entraînement décrits plus haut et pourrait aussi être associé à tout moyen adapté pour porter tout objet à introduire dans une portion de film tubulaire.Furthermore, the front parts of the envelope portions 430 and 431 carry combs 447 and 448 which have transverse teeth 449 and 450 which are capable of penetrating more or less between each other when the longitudinal envelope portions 430 and 431 approach or move away, so as to determine a gutter or a portion of gutter of variable section, in the extension of the oval section mentioned above. The advancement device 400 described with reference to FIGS. 46 to 49 could just as easily include any of the holding and driving means described above and could also be associated with any means suitable for carrying any object to be introduced. in a portion of tubular film.
La présente invention ne se limite pas aux exemples ci-dessus décrits. Bien des variantes de réalisation sont possibles sans sortir du cadre défini par les revendications annexées.
The present invention is not limited to the examples described above. Many alternative embodiments are possible without departing from the scope defined by the appended claims.
Claims
1. Machine d'emballage pour emballer des objets dans un film tubulaire souple, caractérisée par le fait qu'elle "comprend :1. Packaging machine for packaging objects in a flexible tubular film, characterized in that it "comprises:
- un dispositif d'avancement (6, 201 , 301) dudit film tubulaire souple comprenant un guide longitudinal (8, 204, 304) adapté pour être longitudinalement et complètement engagé à l' intérieur du film tubulaire (4, 202, 302), des moyens de maintien (11 -14) adaptés pour porter ledit guide longitudinal et pour laisser passer ou être traversés par le film tubulaire, et des moyens d'entraînement longitudinal (17) adaptés pour faire glisser longitudinalement le film tubulaire lorsque ce dernier est enfilé sur le guide longitudinal ;a device for advancing (6, 201, 301) of said flexible tubular film comprising a longitudinal guide (8, 204, 304) adapted to be longitudinally and completely engaged inside the tubular film (4, 202, 302), holding means (11-14) adapted to carry said longitudinal guide and to let pass or be traversed by the tubular film, and longitudinal drive means (17) adapted to longitudinally slide the tubular film when the latter is threaded on the longitudinal guide;
- et des moyens de réception (7, 207, 307) des objets à emballer, adaptés pour constituer une zone de réception s'étendant longitudinalement dans le prolongement dudit guide longitudinal, de telle sorte que, lors de l' avancement du film tubulaire d'amont en aval sous l'effet du dispositif d'avancement, les objets à emballer s'engagent longitudinalement dans ce dernier.- And receiving means (7, 207, 307) of the objects to be packaged, adapted to constitute a receiving zone extending longitudinally in the extension of said longitudinal guide, so that, during the advancement of the tubular film d 'Upstream downstream under the effect of the advancement device, the objects to be packed engage longitudinally in the latter.
2. Machine selon la revendication 1 , caractérisée par le fait que lesdits moyens de réception des objets à emballer comprennent une gouttière (7) portée en porte-à-faux, dans son prolongement, par ledit guide longitudinal (8) et adaptée pour être longitudinalement et complètement engagée à l'intérieur du film tubulaire lors de l'avancement longitudinal de ce dernier.2. Machine according to claim 1, characterized in that said means for receiving the objects to be packaged comprise a gutter (7) carried in cantilever, in its extension, by said longitudinal guide (8) and adapted to be longitudinally and completely engaged inside the tubular film during the longitudinal advancement of the latter.
3. Machine selon la revendication 2, caractérisée par le fait que ladite gouttière porte au moins un volet longitudinal (36) articulé longitudinalement sur l'un de ses bords longitudinaux, des moyens étant prévus pour manœuvrer ce volet.3. Machine according to claim 2, characterized in that said gutter carries at least one longitudinal flap (36) articulated longitudinally on one of its longitudinal edges, means being provided for operating this flap.
4. Machine selon la revendication 3, caractérisée par le fait que lesdits moyens de manœuvre comprennent un moyen à ressort (46) qui agit pour amener ledit volet au-dessus de la gouttière et des moyens d'actionnement (49) pour agir sur ledit volet à l'encontre de ce moyen à ressort, ces moyens d'actionnement étant escamotables pour laisser passer ledit film tubulaire. 4. Machine according to claim 3, characterized in that said maneuvering means comprise a spring means (46) which acts to bring said flap above the gutter and actuating means (49) to act on said flap against this spring means, these actuating means being retractable to let said tubular film pass.
5. Machine selon l'une des revendications 2 et 4, caractérisée par le fait que lesdits moyens de manœuvre sont placés en amont de la zone de réception de ladite gouttière longitudinale (7).5. Machine according to one of claims 2 and 4, characterized in that said operating means are placed upstream of the receiving area of said longitudinal gutter (7).
6. Machine selon l'une quelconque des revendications 2 à 5, caractérisée par le fait qu'elle comprend des moyens escamotables (33) pour fermer le film tubulaire qui sont disposés à proximité de l'extrémité aval de ladite gouttière longitudinale (7).6. Machine according to any one of claims 2 to 5, characterized in that it comprises retractable means (33) for closing the tubular film which are arranged near the downstream end of said longitudinal gutter (7) .
7. Machine selon la revendication 1, caractérisé par le fait que lesdits moyens de réception des objets à emballer comprennent une gouttière (207) s'étendant dans le prolongement dudit guide longitudinal et adaptée pour être longitudinalement engagé à l'intérieur du film tubulaire lors de l'avancement longitudinal de ce dernier, l' extrémité aval de ladite gouttière étant portée par un chariot (208) mobile longitudinalement pour déplacer ladite gouttière entre une position avancée dans laquelle son extrémité amont est placée accouplée audit guide longitudinl et une position reculée dans laquelle son extrémité amont est placée à distance dudit guide longitudinal.7. Machine according to claim 1, characterized in that said means for receiving the objects to be packaged comprise a gutter (207) extending in the extension of said longitudinal guide and adapted to be longitudinally engaged inside the tubular film during of the longitudinal advancement of the latter, the downstream end of said gutter being carried by a carriage (208) movable longitudinally to move said gutter between an advanced position in which its upstream end is placed coupled to said longitudinal guide and a retracted position in which its upstream end is placed at a distance from said longitudinal guide.
8. Machine selon la revendication 7, caractérisée par le fait qu' elle comprend des moyens complémentaires de réception (213), placés en-dessous de ladite zone de réception pour recevoir les paquets d'objets emballés dans une portion du film tubulaire lors du mouvement de ladite gouttière de sa position avancée vers sa position reculée.8. Machine according to claim 7, characterized in that it comprises complementary reception means (213), placed below said reception zone for receiving the packets of objects packed in a portion of the tubular film during the movement of said gutter from its advanced position to its retracted position.
9. Machine selon l'une des revendications 7 et 8, caractérisée par le fait qu'elle comprend des moyens de saisie escamotables (212) adaptés pour saisir le paquet d'objets emballés entre ledit guide longitudinal et l'extrémité amont de ladite gouttière lorsque cette dernière est éloignée vers l'aval de sa position avancée.9. Machine according to one of claims 7 and 8, characterized in that it comprises retractable gripping means (212) adapted to grip the packet of wrapped objects between said longitudinal guide and the upstream end of said gutter when the latter is moved downstream from its advanced position.
10. Machine selon l'une quelconque des revendications 7 à 9, caractérisée par le fait que ledit guide longitudinal et l'extrémité amont de ladite gouttière comprennent des moyens complémentaires d'accouplement longitudinal (205).10. Machine according to any one of claims 7 to 9, characterized in that said longitudinal guide and the upstream end of said gutter comprise complementary longitudinal coupling means (205).
11. Machine selon l'une quelconque des revendications 7 à 10, caractérisée par le fait qu'elle comprend des moyens amont escamotables (21 1) pour fermer le film tubulaire, qui sont disposés à proximité de l'extrémité aval dudit guide longitudinal et des moyens aval escamotables (216) pour fermer le film tubulaire qui sont disposés en aval de l'extrémité aval de la zone de réception.11. Machine according to any one of claims 7 to 10, characterized in that it comprises retractable upstream means (21 1) for closing the tubular film, which are arranged close to the downstream end of said longitudinal guide and retractable downstream means (216) for closing the tubular film which are arranged downstream of the downstream end of the reception zone.
12. Machine selon la revendication 1, caractérisée par le fait que lesdits moyens de réception des objets à emballer comprennent des groupes de rouleaux (307) espacés longitudinalement, chaque groupe de rouleaux comprenant au moins deux rouleaux inclinés (308, 309) formant un N ouvert vers le haut.12. Machine according to claim 1, characterized in that said means for receiving the objects to be packaged comprise groups of rollers (307) spaced apart longitudinally, each group of rollers comprising at least two inclined rollers (308, 309) forming an N open up.
13. Machine selon la revendication 12, caractérisée par le fait que les groupes de rouleaux sont portés par de moyens mobiles (310, 31 1) permettant de les écarter.13. Machine according to claim 12, characterized in that the groups of rollers are carried by mobile means (310, 31 1) making it possible to separate them.
14. Machine selon l'une des revendications 12 et 13 , caractérisée par le fait qu' elle comprend des moyens (308a, 309a) pour entraîner en rotation lesdits rouleaux dans le sens de l'avancement du film tubulaire. 14. Machine according to one of claims 12 and 13, characterized in that it comprises means (308a, 309a) for rotating said rollers in the direction of advancement of the tubular film.
15. Machine selon l'une quelconque des revendications 12 à 14, caractérisée par le fait qu'elle comprend des moyens de saisie (317) adaptés pour saisir l'extrémité aval du film tubulaire et des objets et des moyens (315) pour déplacer longitudinalement ces moyens de saisie.15. Machine according to any one of claims 12 to 14, characterized in that it comprises gripping means (317) suitable for gripping the downstream end of the tubular film and objects and means (315) for moving longitudinally these gripping means.
16. Machine selon l'une quelconque des revendications 12 à 15, caractérisée par le fait qu' elle comprend des moyens escamotables (322) pour fermer le film tubulaire, qui sont disposés entre ledit guide longitudinal et le premier groupe de rouleaux, et des moyens escamotables (318) pour fermer le film tubulaire qui sont disposés en aval de l' extrémité aval de la zone de réception. 16. Machine according to any one of claims 12 to 15, characterized in that it comprises retractable means (322) for closing the tubular film, which are arranged between said longitudinal guide and the first group of rollers, and retractable means (318) for closing the tubular film which are arranged downstream of the downstream end of the reception zone.
17. Machine selon l'une quelconque des revendications 7 à 6, caractérisée par le fait que ledit guide longitudinal comprend une portion de gouttière aval (305) s'étendant longitudinalement.17. Machine according to any one of claims 7 to 6, characterized in that said longitudinal guide comprises a portion of downstream gutter (305) extending longitudinally.
18. Machine selon la revendication 17, caractérisée par le fait que ladite gouttière porte au moins un volet longitudinal (319) articulé longitudinalement sur l'un de ses bords longitudinaux, des moyens étant prévus pour manœuvrer ce volet.18. Machine according to claim 17, characterized in that said gutter carries at least one longitudinal flap (319) articulated longitudinally on one of its longitudinal edges, means being provided to operate this flap.
19. Machine selon la revendication 18, caractérisée par le fait que lesdits moyens de manœuvre comprennent un moyen à ressort (46) qui agit pour amener ledit volet au-dessus de la gouttière et des moyens d'actionnement (49) pour agir sur ledit volet à l'encontre de ce moyen à ressort, ces moyens d'actionnement étant escamotables pour laisser passer ledit film tubulaire.19. Machine according to claim 18, characterized in that said maneuvering means comprise a spring means (46) which acts to bring said flap above the gutter and means actuator (49) to act on said flap against this spring means, these actuating means being retractable to allow said tubular film to pass.
20. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait qu' elle comprend des moyens (25) pour couper le film tubulaire, qui sont disposés en amont de ladite zone de réception et en aval desdits moyens de maintien et d'entraînement.20. Machine according to any one of the preceding claims, characterized in that it comprises means (25) for cutting the tubular film, which are arranged upstream of said receiving zone and downstream of said means for holding and 'training.
21. Machine selon la revendication 20, caractérisée par le fait que lesdits moyens pour couper le film tubulaire comprennent un couteau rotatif escamotable (27).21. Machine according to claim 20, characterized in that said means for cutting the tubular film comprise a retractable rotary knife (27).
22. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que ledit guide longitudinal (401) comprend au moins deux parties longitudinales opposées de guidage (430, 431) et caractérisée par le fait qu'elle comprend des moyens de réglage (407-410, 437, 438) adaptés pour régler les positions transversales relatives de ces parties longitudinales opposées de guidage(430, 431), desdits moyens de maintien (428, 429, 432, 434) dudit guide longitudinal (401) et desdits moyens d' entraînement longitudinal (432, 434) du film tubulaire. 22. Machine according to any one of the preceding claims, characterized in that the said longitudinal guide (401) comprises at least two opposite longitudinal guide parts (430, 431) and characterized in that it comprises adjustment means (407-410, 437, 438) adapted to adjust the relative transverse positions of these opposite longitudinal guide parts (430, 431), said holding means (428, 429, 432, 434) of said longitudinal guide (401) and said longitudinal drive means (432, 434) of the tubular film.
23. Machine selon la revendication 22, caractérisée par le fait que lesdits moyens de réglage comprennent des moyens de rappel (426, 427) sollicitant lesdites parties longitudinales opposées dudit guide longitudinal dans les sens qui les écarte- et des moyens pour déplacer transversalement lesdits moyens de maintien et d'entraînement. 23. Machine according to claim 22, characterized in that said adjustment means comprise return means (426, 427) urging said opposite longitudinal parts of said longitudinal guide in the directions which move them apart- and means for transversely moving said means maintenance and training.
24. Machine selon l'une des revendications 22 et 23, caractérisée par le fait que ledit guide longitudinal comprend une poutre longitudinale centrale (402) et des bras articulés (407-410) reliant cette poutre et lesdites parties longitudinales de guidage, lesdits moyens de réglage de l'écartement entre ces parties agissant entre cette poutre et ces bras articulés.24. Machine according to one of claims 22 and 23, characterized in that said longitudinal guide comprises a central longitudinal beam (402) and articulated arms (407-410) connecting this beam and said longitudinal guide parts, said means adjusting the spacing between these parts acting between this beam and these articulated arms.
25. Machine selon l'une quelconque des revendications 22 à 24, caractérisée par le fait qu'elle comprend des moyens de réglage transversal desdits moyens de réception (447, 44.8,437, 438). 25. Machine according to any one of claims 22 to 24, characterized in that it comprises transverse adjustment means of said receiving means (447, 44.8,437, 438).
26. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens d'entraînement longitudinal comprennent des moyens " extérieurs d'action (17 ; 77) agissant sur la face extérieure du film tubulaire et des moyens intérieurs de réaction (15a ; 70) agissant sur la face intérieure du film tubulaire et prévus sur le guide longitudinal (8 ; 68).26. Machine according to any one of the preceding claims, characterized in that the said longitudinal drive means comprise " external action means (17; 77) acting on the external face of the tubular film and internal reaction means (15a; 70) acting on the inner face of the tubular film and provided on the longitudinal guide (8; 68).
27. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens de maintien comprennent au moins un moyen d'appui extérieur (17) qui coopère avec au moins un moyen d' appui intérieur (15a) porté par ledit guide longitudinal (8), entre lesquels passe ledit film tubulaire.27. Machine according to any one of the preceding claims, characterized in that said holding means comprise at least one external support means (17) which cooperates with at least one internal support means (15a) carried by said longitudinal guide (8), between which said tubular film passes.
28. Machine selon la revendication 27, caractérisée par le fait que ledit moyen d'appui extérieur et ledit moyen d'appui intérieur comprennent respectivement au moins un galet (15a) et une roue (17), disposés de telle sorte que le film tubulaire passe et soit pris entre ce galet et cette roue.28. Machine according to claim 27, characterized in that said external support means and said internal support means respectively comprise at least one roller (15a) and a wheel (17), arranged so that the tubular film pass and be caught between this roller and this wheel.
29. Machine selon la revendication 27, caractérisée par le fait que ledit moyen d'appui extérieur et ledit moyen d'appui intérieur comprennent respectivement une paire de galets (15a, 15) et une roue (17), disposés de telle sorte que le film tubulaire passe et soit pris entre d'une part cette roue et d' autre part les galets de cette paire de galets.29. Machine according to claim 27, characterized in that said external support means and said internal support means respectively comprise a pair of rollers (15a, 15) and a wheel (17), arranged so that the tubular film passes and is taken between on the one hand this wheel and on the other hand the rollers of this pair of rollers.
30. Machine selon l'une des revendications 28 et 29, caractérisée par le fait que ledit galet et ladite roue comprennent respectivement une gorge périphérique (63) et un épaulement annulaire (66) engagés l'un dans l'autre.30. Machine according to one of claims 28 and 29, characterized in that said roller and said wheel respectively comprise a peripheral groove (63) and an annular shoulder (66) engaged one in the other.
31. Machine selon la revendication 30, caractérisée par le fait que ladite gorge périphérique (63) et ledit épaulement annulaire (66) présentent des surfaces annulaires d'appui axialement espacées.31. Machine according to claim 30, characterized in that said peripheral groove (63) and said annular shoulder (66) have axially spaced annular bearing surfaces.
32. Machine selon l'une quelconque des revendications 28 à 31 , caractérisée par le fait que ladite roue (17) est placée à l'extérieur du film tubulaire (4) et est reliée à des moyens (18) d'actionnement en rotation de façon à constituer lesdits moyens d'entraînement.32. Machine according to any one of claims 28 to 31, characterized in that said wheel (17) is placed outside the tubular film (4) and is connected to means (18) for actuation in rotation so as to constitute said drive means.
33. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens d'entraînement comprennent au moins un organe rotatif d'entraînement tel qu'une roue d'entraînement (17) ou une bande sans fin d'entraînement (77), qui agit sur la face extérieure du film tubulaire et qui est reliée à un moteur d'entraînement en rotation (18 "; 78). 33. Machine according to any one of the preceding claims, characterized in that the said drive means comprise at least one rotary drive member such as a drive wheel (17) or an endless drive belt (77), which acts on the outer face of the tubular film and which is connected to a motor rotary drive (18 " ; 78).
34. Machine selon la revendication 33, caractérisée par le fait que lesdits moyens d' entraînement comprennent au moins un organe rotatif (15a) fou tel qu'un galet fou, porté par ledit guide longitudinal, le film tubulaire passant entre ledit organe rotatif et cet organe rotatif fou.34. Machine according to claim 33, characterized in that the said drive means comprise at least one idler rotary member (15a) such as an idler roller, carried by said longitudinal guide, the tubular film passing between said rotary member and this crazy rotary member.
35. Machine selon la revendication 33, caractérisée par le fait que ledit guide longitudinal comprend au moins une surface d'appui (70) située en vis-à-vis dudit organe rotatif d'entraînement (77).35. Machine according to claim 33, characterized in that said longitudinal guide comprises at least one bearing surface (70) located opposite said rotary drive member (77).
36. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens de maintien comprennent au moins un moyen inférieur d'appui extérieur placé en- dessous dudit guide longitudinal et au moins un moyen supérieur d'appui extérieur placé en-dessus dudit guide longitudinal, qui coopèrent respectivement avec des moyens d' appui intérieurs portés par ledit guide longitudinal.36. Machine according to any one of the preceding claims, characterized in that said holding means comprise at least one lower external support means placed below said longitudinal guide and at least one upper external support means placed in above said longitudinal guide, which respectively cooperate with internal support means carried by said longitudinal guide.
37. Machine selon la revendication 36, caractérisée par le fait que ledit moyen inférieur d'appui extérieur et ledit moyen supérieur d'appui extérieur sont décalés longitudinalement audit guide longitudinal.37. Machine according to claim 36, characterized in that said lower external support means and said upper external support means are offset longitudinally to said longitudinal guide.
38. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens de maintien comprennent au moins un moyen inférieur d'appui extérieur placé en- dessous dudit guide longitudinal et au moins un moyen supérieur d'appui extérieur placé en-dessus dudit guide longitudinal et opposé audit moyen inférieur d'appui extérieur, qui coopèrent respectivement - avec des moyens d' appui intérieurs portés par ledit guide longitudinal, ainsi qu'au moins un moyen d'appui extérieur décalé longitudinalement audit guide longitudinal, qui coopère avec au moins un moyen d'appui intérieur porté par ce guide longitudinal.38. Machine according to any one of the preceding claims, characterized in that said holding means comprise at least one lower external support means placed below said longitudinal guide and at least one upper external support means placed in -above said longitudinal guide and opposite to said lower external support means, which cooperate respectively - with internal support means carried by said longitudinal guide, as well as at least one external support means offset longitudinally to said longitudinal guide, which cooperates with at least one internal support means carried by this longitudinal guide.
39. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens de maintien comprennent des paires de moyens inférieurs d'appui extérieur (13, 14) 4/00944639. Machine according to any one of the preceding claims, characterized in that the said holding means comprise pairs of lower external support means (13, 14) 4/009446
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placés en-dessous dudit guide longitudinal et décalés transversalement pour constituer un N, ces moyens inférieurs d'appui extérieur coopérant respectivement avec des moyens d'appui intérieurs portés par ledit guide longitudinal et décalés transversalement pour constituer un N correspondant.placed below said longitudinal guide and offset transversely to form an N, these lower external support means respectively cooperating with internal support means carried by said longitudinal guide and offset transversely to form a corresponding N.
40. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens de maintien comprennent des paires de moyens supérieurs (1 1 , 12) d'appui extérieur placés en-dessus dudit guide longitudinal et décalés transversalement pour constituer un N, ces moyens supérieurs d'appui extérieur coopérant respectivement avec des moyens d' appui intérieurs portés par ledit guide longitudinal et décalés transversalement pour constituer un N correspondant.40. Machine according to any one of the preceding claims, characterized in that said holding means comprise pairs of upper means (1 1, 12) of external support placed above said longitudinal guide and offset transversely to constitute a N, these upper external support means respectively cooperating with internal support means carried by said longitudinal guide and offset transversely to form a corresponding N.
41. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que lesdits moyens de maintien comprennent au moins deux galets intérieurs opposés arrière (59) et deux galets intérieurs opposés avant, portés par ledit guide longitudinal, ainsi qu' au moins deux roues extérieures opposées arrière (60), disposées de part et d'autre du guide longitudinal, et deux roues extérieures opposées avant, disposées de part et d'autre du guide longitudinal, lesdits galets et lesdites roues comprenant respectivement une gorge annulaire et un épaulement annulaire engagé l'un dans l'autre.41. Machine according to any one of the preceding claims, characterized in that said holding means comprise at least two rear opposite inner rollers (59) and two opposite front inner rollers, carried by said longitudinal guide, as well as at least two opposite rear outer wheels (60), arranged on either side of the longitudinal guide, and two opposite front outer wheels, arranged on either side of the longitudinal guide, said rollers and said wheels respectively comprising an annular groove and a annular shoulder engaged one in the other.
42. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que ledit guide longitudinal (8) est sensiblement tubulaire, son extrémité (10a) s'engageant en premier dans le film tubulaire étant appointée.42. Machine according to any one of the preceding claims, characterized in that the said longitudinal guide (8) is substantially tubular, its end (10a) engaging first in the tubular film being pointed.
43. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait que ledit guide longitudinal présente une enveloppe longitudinale (10) de section sensiblement ovale. 43. Machine according to any one of the preceding claims, characterized in that the said longitudinal guide has a longitudinal envelope (10) of substantially oval section.
44. Dispositif d'avancement d'un film tubulaire souple, caractérisé par le fait qu'il comprend : un guide longitudinal (8) adapté pour être longitudinalement engagé à l'intérieur du film tubulaire (4) et comprenant au moins deux parties longitudinales opposées de guidage ; 4/00944644. Device for advancing a flexible tubular film, characterized in that it comprises: a longitudinal guide (8) adapted to be longitudinally engaged inside the tubular film (4) and comprising at least two longitudinal parts opposite guide; 4/009446
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des moyens de maintien (11 - 14) adaptés pour porter ledit guide longitudinal et pour laisser passer ou être traversés par le film tubulaire ; des moyens d'entraînement longitudinal (17) adaptés pour faire glisser longitudinalement le film tubulaire lorsque ce dernier est enfilé sur le guide longitudinal ; et des moyens de réglage adaptés pour régler les positions transversales relatives de ces parties longitudinales opposées de guidage, des.dits moyens de maintien (1 1- 14) dudit guide longitudinal (8) et desdits moyens d'entraînement longitudinal (17) du film tubulaire. holding means (11-14) adapted to carry said longitudinal guide and to let pass or be traversed by the tubular film; longitudinal drive means (17) adapted to slide the tubular film longitudinally when the latter is threaded on the longitudinal guide; and adjustment means suitable for adjusting the relative transverse positions of these opposite longitudinal guide parts, of said holding means (1 1- 14) of said longitudinal guide (8) and of said longitudinal film drive means (17) tubular.
45. Dispositif selon la revendication 44, caractérisée par le fait que lesdits moyens de réglage comprennent des moyens de rappel sollicitant lesdites parties longitudinales opposées dudit guide longitudinal dans le sens qui les écarte et des moyens pour déplacer transversalement lesdits moyens de maintien et d'entraînement. 45. Device according to claim 44, characterized in that said adjusting means comprise return means urging said opposite longitudinal parts of said longitudinal guide in the direction which separates them and means for transversely moving said holding and driving means .
46. Dispositif selon l'une des revendications 44 et 45, caractérisée par le fait que ledit guide longitudinal comprend une poutre longitudinale centrale et des bras articulés reliant cette poutre et lesdites parties longitudinales de guidage, lesdits moyens de réglage de l'écartement entre ces parties agissant entre cette poutre et ces bras articulés.46. Device according to one of claims 44 and 45, characterized in that said longitudinal guide comprises a central longitudinal beam and articulated arms connecting this beam and said longitudinal guide parts, said means for adjusting the spacing between these parts acting between this beam and these articulated arms.
47. Dispositif selon l'une quelconque des revendications 44 à 46, caractérisée par le fait que lesdites parties longitudinales de guidage comprennent des supports longitudinaux qui portent des portions longitudinales d'enveloppe. 47. Device according to any one of claims 44 to 46, characterized in that the said longitudinal guide parts comprise longitudinal supports which carry longitudinal envelope portions.
48. Dispositif selon l'une quelconque des revendications 44 à 47, caractérisée par le fait qu'il comprend des moyens de réglage transversal desdits moyens de réception. 48. Device according to any one of claims 44 to 47, characterized in that it comprises means for transversely adjusting said receiving means.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR0209277A FR2842502B1 (en) | 2002-07-22 | 2002-07-22 | DEVICE FOR ADVANCING A FLEXIBLE TUBULAR FILM AND PACKAGING MACHINE |
FR0209277 | 2002-07-22 | ||
PCT/FR2003/002304 WO2004009446A2 (en) | 2002-07-22 | 2003-07-21 | Machine and for packaging objects in a flexible tubular film |
Publications (1)
Publication Number | Publication Date |
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EP1529003A2 true EP1529003A2 (en) | 2005-05-11 |
Family
ID=29797629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP03755620A Withdrawn EP1529003A2 (en) | 2002-07-22 | 2003-07-21 | Packaging machine and device for feeding a flexible tubular film |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1529003A2 (en) |
AU (1) | AU2003273460A1 (en) |
FR (1) | FR2842502B1 (en) |
WO (1) | WO2004009446A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2369464A1 (en) * | 2009-05-07 | 2011-12-01 | Girnet Internacional S.L. | Process, system and machine for manufacturing and filling bags |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009003101U1 (en) * | 2009-03-09 | 2010-08-12 | Gk Industries Gmbh | Device for wrapping lumpy goods in protective cases |
US9266939B2 (en) | 2010-12-27 | 2016-02-23 | Alexion Pharmaceuticals, Inc. | Compositions comprising natriuretic peptides and methods of use thereof |
DK178374B1 (en) * | 2014-11-04 | 2016-01-18 | Frank Bruhn Aps | HORIZONTALLY ARRANGED WRAP PACKAGING SYSTEM |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3058273A (en) * | 1961-03-06 | 1962-10-16 | Formatron Inc | Method and apparatus for packaging |
FR1349415A (en) * | 1962-12-06 | 1964-01-17 | Scholle Chemical Corp | Method and apparatus for making flexible containers |
FR1375274A (en) * | 1963-09-12 | 1964-10-16 | August Wickersheim Fa | Method and device for making and sealing packagings in the form of sachets or bags from a material having a tubular shape |
FR1378274A (en) | 1963-10-04 | 1964-11-13 | Electric light intensity attenuator | |
FR1411724A (en) * | 1964-06-18 | 1965-09-24 | Everhard Bauer Fa | Spacer device for packaging machines or similar machines |
GB1298259A (en) * | 1970-08-13 | 1972-11-29 | Alford Sidney C | Packaging apparatus |
NL8204315A (en) * | 1982-11-08 | 1984-06-01 | Intermatic Machines B V | Device for spreading a tube of flexible material. |
FR2691945A1 (en) * | 1992-06-03 | 1993-12-10 | Perret Michel | Packaging procedure using tubular wrap - uses shaped former to open platform wrap and holding tray with cutting device arranged inbetween |
US6070399A (en) * | 1998-07-21 | 2000-06-06 | Huang; Fu-Chuan | Guide feeding device for a thermal shrinking film mechanism |
IT1309251B1 (en) * | 1999-05-17 | 2002-01-16 | Sorma S P A | PROCEDURE FOR MAKING NETWORK PACKAGES OF FRUITS AND VEGETABLES OR SIMILAR PRODUCTS, WITHIN A TUBULAR NETWORK, CARRIED OUT IN |
-
2002
- 2002-07-22 FR FR0209277A patent/FR2842502B1/en not_active Expired - Fee Related
-
2003
- 2003-07-21 WO PCT/FR2003/002304 patent/WO2004009446A2/en not_active Application Discontinuation
- 2003-07-21 AU AU2003273460A patent/AU2003273460A1/en not_active Abandoned
- 2003-07-21 EP EP03755620A patent/EP1529003A2/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2004009446A2 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2369464A1 (en) * | 2009-05-07 | 2011-12-01 | Girnet Internacional S.L. | Process, system and machine for manufacturing and filling bags |
US9227744B2 (en) | 2009-05-07 | 2016-01-05 | Girnet International, S.L. | Method, system and machine for producing and filling bags |
Also Published As
Publication number | Publication date |
---|---|
AU2003273460A1 (en) | 2004-02-09 |
WO2004009446A2 (en) | 2004-01-29 |
WO2004009446A3 (en) | 2004-04-08 |
FR2842502A1 (en) | 2004-01-23 |
FR2842502B1 (en) | 2005-08-12 |
AU2003273460A8 (en) | 2004-02-09 |
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