EP0787648B1 - Packing machine particularly for cigarettes, or similar - Google Patents
Packing machine particularly for cigarettes, or similar Download PDFInfo
- Publication number
- EP0787648B1 EP0787648B1 EP96120964A EP96120964A EP0787648B1 EP 0787648 B1 EP0787648 B1 EP 0787648B1 EP 96120964 A EP96120964 A EP 96120964A EP 96120964 A EP96120964 A EP 96120964A EP 0787648 B1 EP0787648 B1 EP 0787648B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cigarettes
- path
- wheels
- sheet
- cigarette
- 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.)
- Expired - Lifetime
Links
- 235000019504 cigarettes Nutrition 0.000 title claims description 110
- 238000012856 packing Methods 0.000 title 1
- 230000033001 locomotion Effects 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
- B65B19/02—Packaging cigarettes
- B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
- B65B19/228—Preparing and feeding blanks
-
- 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
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/02—Feeding sheets or wrapper blanks
- B65B41/04—Feeding sheets or wrapper blanks by grippers
- B65B41/06—Feeding sheets or wrapper blanks by grippers by suction-operated grippers
Definitions
- the invention relates to a packaging machine, especially for cigarettes or the like, comprising:
- a packaging machine of this kind is known from the document EP 0 143 961 A.
- the two rotating wheels provided with peripheral suction segments and supported coaxially with each other externally sideways on to the cigarettes feed path are massive solid wheels and the suction segments are cicumferentially connected to each other forming a continuous peripheral surface. Therefore the access to the cigarettes path is rendered difficult.
- At least the end section of the path of the cigarettes towards the station is straight, horizontal and parallel or approximately parallel to the front side of the machine and the shaft supporting the spoke wheel situated on the front side of the cigarettes path terminates at a distance from the associated side of the cigarettes path, which distance is approximately equal to or slightly greater than the maximum projection from the corresponding side of the cigarettes path, of the sheet having the greatest possible transverse dimension, and a plurality of spoke wheels are provided, which can be alternatively mounted on said shaft and have spokes differently inclined towards the opposite spoke wheel to correspond to a predetermined dimension of the sheet in the transverse direction to the cigarettes path.
- the path is advantageously straight and in particular preferably horizontal.
- the two spoke wheels can receive their stepwise drive motion from a single main driven shaft of the machine, or from a plurality of driven shafts of the machine, each spoke wheel having a transmission which converts the motion of the drive shaft into a perfectly synchronized rotary stepwise movement of both wheels with angular steps of identical amplitude.
- the straight path of the cigarettes is advantageously bounded, at least in said end section between the wrapper sheet feed wheels, by a straight channel formed by a lower travelling surface or guide and by an upper wall that extends between the two wheels and that can in some suitable way be removed, being directly accessible, by hand
- the invention For feeding the cigarettes, the invention employs, in combination with the channel that bounds the end section of the cigarette feed path, components for moving a group of cigarettes, with a gripper head which is caused to travel back and forth along the straight path by an articulated parallelogram, in particular by a five-bar chain, which can be freely introduced into and withdrawn from the channel that bounds the cigarette path and can travel freely in and along this channel.
- the gripper head can be provided with two forks separated from each other in the direction in which the group of cigarettes is fed by a distance such that they overlap, one behind and the other in front, at the rear end and at the forward end, respectively, of the group of cigarettes, with reference to its feed direction.
- the special form of construction reduces to a minimum the steps required to adjust the distance between the suction segments of the two wheels when switching to cigarettes of a different length, limiting these steps to the replacement of the spoke wheel on the front side of the path of the cigarettes.
- the adjustment process is thus made very simple and, more importantly, fast.
- a cigarette packaging machine includes means for moving a series of groups of cigarettes, already arranged in the final arrangement which they are to have in the finished pack.
- the cigarettes are fed along a generally coplanar and horizontal path 1A, 1B.
- the initial section 1A generally consists of a so-called cassette belt.
- This comprises an endless conveyor belt 2 moving stepwise and fitted with a plurality of housings 3 arranged side by side for the individual groups of cigarettes.
- the cigarettes are arranged so that their longitudinal axis is perpendicular to the direction of advance.
- the cigarettes are transferred in an axial direction by reciprocating pusher means marked 6 in Fig. 2 to a parallel feed path 1B coplanar with the path 1A.
- the path 1B is a continuation of the latter and its end section and leads to a station SA which brings together the group of cigarettes and a wrapper sheet (not illustrated).
- the reciprocating pusher means 6 move essentially around a rectangular loop in which the forward stroke is level with the group of cigarettes, while the return stroke occurs at a higher level so as not to interfere with that group.
- the actuation of the axial pusher means 6 may be provided by a simple articulated parallelogram or the like.
- the bringing-together station SA is situated in front of the entrance to a folding unit which folds the wrapper sheet around its cigarettes.
- This unit consists of a forming wheel bearing the general reference 4.
- the wrapper sheet and its group of cigarettes are transferred together from the station SA into the forming wheel 4 by transfer means: these are not illustrated in detail and may consist of a combination of two mutually opposing pusher means.
- straight movement means comprising a gripper head that can be moved along the path 1B by an articulated parallelogram, in particular a five-bar chain bearing the general reference 5.
- the movement means advantageously comprise a gripper head 7 for gripping the group of cigarettes.
- This head 7 is provided with vertical extensions, i.e. extensions that are perpendicular to the travelling surface 8 of the cigarettes, in the form of a transverse fork 107.
- the two free arms of the fork 107 are situated at either end of the transverse sides of the gripper head 7 and are separated from each other in such a way that the upper side 9 lies between them.
- the transverse distance between the arms of the fork 107 of the gripper head 7 is therefore greater than the transverse dimensions of the upper wall 9, while the distance between the respective outer lateral edges of the arms of the fork is equal to or less than the axial length of the cigarettes.
- the gripper head 7 it is possible for the gripper head 7 to have a fork 107 both at the rear end of the head, where it lies over the rear end of the group of cigarettes, and also at a forward end, the two forks being separated from each other by a distance such that the forward fork comes over the front side of the group of cigarettes, with reference to the cigarette feed direction.
- the distance between the travelling surface 8 and the upper wall 9 is approximately equal to the vertical dimensions of the group of cigarettes.
- the particular construction of the gripper head 7 enables it to describe a rectilinear forward movement in which the forks pass into the interior of the channel which forms the cigarette path 1B, and an approximately parallel return stroke in which the forks move on a higher level than the upper wall 9 and do not interfere with the cigarette path 1B.
- the cigarette path 1B ends at the bringing-together/transfer station SA at approximately the same point as, and in particular very slightly set back from, the circular feed path of the sheet.
- the latter is fed by rotating feed means with suction segments 10.
- the suction segments 10 are arranged in coinciding but axially separate pairs, enabling them to act on the end portions of the circumferentially oriented bands of the sheet that project beyond the axial length of the cigarettes. For each sheet there are two pairs of suction segments 10 in axial alignment, with one pair acting on the front sections and the other on the end sections of said projecting lateral bands of the sheet, with reference to the sheet feed direction.
- suction segments corresponding to each of the two opposite lateral bands of the sheet are mounted on a separate wheel or disc 11, 11'.
- the example illustrated shows wheels 11, 11' in which the circumferential suction segments 10 are each supported by a radial spoke 12.
- the two wheels 11, 11' are mechanically completely separate from each other and are mounted coaxial with each other on rotary supports.
- One wheel 11 is positioned externally alongside that side of the cigarette path which is opposite the front side of the machine. It is attached to a ring gear 13 which revolves on a stationary axis or stationary hub 14. The ring gear 13 meshes with the output gear 21 of a drive line connected to a main driven shaft of the machine.
- the drive provides, in particular, means 18 for converting the rotary motion of the main shaft into reciprocating motion, e.g. an intermittent movement mechanism, such as an oscillator with parallel axes, or the like.
- the opposite wheel 11' is attached to and rotates with the end of a shaft portion 15.
- the shaft portion 15 and hence also the wheel 11' are situated alongside the front side of the cigarette path 1B.
- the common axis of rotation of the two independent wheels 11, 11' is transverse to the cigarette feed direction and lies approximately level with said path, in particular with the upper wall 9 thereof.
- the wheel 11' receives its actuating movement from a main shaft of the machine which may be the same as that connected to the wheel 11 or a different shaft.
- a drive shaft 16 parallel to the common axis of rotation of the two wheels 11, 11' lies underneath the cigarette path 1B and its end projecting on the front side of the machine is connected to a transmission capable of converting its rotary motion into reciprocating motion, for example an intermittent movement mechanism, that is an oscillator with parallel axes 18'.
- the drive shaft itself executes an oscillatory or stepwise movement different from that required for turning the wheel 11' in synchronism with the wheel 11, it is possible to interpose an additional drive that converts the motion in a suitable way such as that bearing the general reference 19 in Fig. 2.
- the output shaft 118' of the parallel-axis oscillator 18' is connected to the shaft portion 15 supporting the wheel 11' by means of a coupling of a gearwheel and a ring gear bearing the general reference 20.
- the drive or drives 18, 18', 19 extend vertically upwards in such a way that the axis of rotation of the wheel 11' is coaxial with that of the opposite wheel 11.
- the ways in which the motion is converted by the two parallel-axis oscillators 18, 18' are identical or different depending on how the motion is passed to their input shafts and are such that the two wheels 11, 11' are always precisely synchronized with each other, their steps being of identical angular amplitude and the wrapper sheet being held perfectly taut on the suction segments 10.
- suction segments 10 to the vacuum or to the suction and, in alternation, their connection to atmospheric pressure or to a pressure source is brought about by means of a revolving valve which comprises a stationary bottom 22 provided with chambers 122 in the form of circular sectors of defined amplitude that are connected to the vacuum sources or to atmospheric pressure, or to the pressure sources, and over whose end surface there move, leaktightly, the passage holes communicating with the channels formed by the tubular spokes 12.
- the cigarette path 1B lies between the two wheels 11, 11', and the shaft 15 supporting the wheel 11' on the front side of the machine is separated by a large distance from the nearest side of the cigarette path 1B.
- the spokes 12 in solid lines are of the type that incline towards the axis of the wheel in the direction of the cigarette path 1B, in order to grasp a sheet with shorter transverse dimensions, whereas the chain lines show the spoke 12' of a wheel 11' designed to grasp a sheet whose transverse dimensions relative to the cigarette path 1B are the maximum length.
- the distance between the end of the shaft 15 supporting the wheel 11' on the front side of the machine is approximately equal to, or slightly greater than, the maximum projection of the sheet having the greatest possible transverse dimensions, from the corresponding front side of the cigarette path 1B.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wrapping Of Specific Fragile Articles (AREA)
- Basic Packing Technique (AREA)
Description
g) the two wheels are spoke wheels and their spokes are aligned axially with each other and support individual, circumferentially oriented suction segments, also forming, by virtue of their tubular construction, the connecting passages between the suction segments and a suction or a vacuum source and in alternative an atmospheric pressure or a pressure source.
Claims (10)
- Packaging machine, especially for cigarettes or the like, comprising:a) a station (SA) for bringing together a pre-ordered group of cigarettes and a wrapper sheet,b) means (5, 7) for feeding the group of cigarettes along a path (1B) to the station (SA),c) means (11, 11') for feeding a sheet along a defined path different from that of the cigarettes to the station (SA),d) means for transferring the sheet together with an associated group of cigarettes from the station (SA) to a subsequent unit (4) which folds the sheet around the group of cigarettes,e) the sheet feed means consist of two rotating wheels (11, 11') provided with peripheral suction segments (10) and supported coaxially with each other externally sidewise on to the cigarettes feed path (1B),f) means (18, 18', 16) for coupling the two wheels (11, 11') dynamically to each other and to a rotary actuator or for actuating the two wheels (11, 11') separately from each other in a synchronized manner,g) the two wheels (11, 11') are spoke wheels and their spokes are aligned axially with each other and support individual, circumferentially oriented suction segments (10), also forming, by virtue of their tubular construction, the connecting passages between the suction segments (10) and a suction or a vacuum source and in alternative an atmospheric pressure or a pressure source.
- Machine according to claim 1, characterized in that at least the end section of the path (1B) of the cigarettes towards the station (SA) is straight, horizontal and parallel or approximately parallel to the front side of the machine and the shaft (15) supporting the spoke wheel (11') situated on the front side of the cigarettes path (1B) terminates at a distance from the associated side of the cigarettes path (1B), which distance is approximately equal to or slightly greater than the maximum projection from the corresponding side of the cigarettes path (1B), of the sheet having the greatest possible transverse dimension, and a plurality of spoke wheels (11') are provided, which can be alternatively mounted on said shaft (15) and have spokes differently inclined towards the opposite spoke wheel (11) to correspond to a predetermined dimension of the sheet in the transverse direction to the cigarettes path (1B).
- Machine according to claim 1 or 2, characterized in that the two spoke wheels (11, 11') receive their stepwise drive motion from a single main driven shaft of the machine, or from a plurality of driven shafts of the machine, each spoke wheel having a transmission (18, 18', 19) which converts the motion of the drive shaft into a perfectly synchronized rotary stepwise movement of both wheels (11, 11') with angular steps of identical amplitude.
- Machine according to Claim 3, characterized in that the drive means of the spoke wheel (11') situated on the front side of the cigarette path (1B) comprise motion transmission means that pass underneath the cigarette path (1B), from the inward side of the machine towards its front side, and a kinematic chain (18', 19) for converting the motion into the predetermined angular stepwise motion of the wheel (11') which extend upwards to terminate in a position coaxial with the inner wheel (11) and in front of the corresponding front side of the cigarette path (1B), with the supporting shaft (15) of the outer wheel (11').
- Machine according to one or more of the previous claims, characterized in that the straight horizontal path (1B) of the cigarettes is advantageously bounded, at least in said end section between the wrapper sheet feed wheels (11, 11'), by a straight channel formed by a lower travelling surface (8) or guide and by an upper wall (9) that extends between the two wheels (11, 11') and that can in some suitable way be removed, being directly accessible, by hand.
- Machine according to claim 5, characterized in that in combination with the channel (8, 9) that bounds the end section of the cigarette feed path (1B), components (5, 7, 107) are provided for moving a group of cigarettes, with a gripper head (7, 107) which is caused to travel back and forth along the straight path by an articulated parallelogram (5), in particular by a five-bar chain, which can be freely introduced into and withdrawn from the channel (8, 9) that bounds the cigarette path (1B) and can travel freely in and along this channel.
- Machine according to Claim 6, characterized in that said gripper head (7, 107) and the upper wall (9) of the channel that bounds the end section (1B) of the cigarette path are so constructed that during the forward stroke, when the cigarettes are being fed to the station (SA), the gripper head (7, 107) comprises parts, at least at the rear, that act on the cigarettes, passing into the interior of the channel, and the return stroke takes place along a higher-level path along which the gripper elements (107) are external to the upper wall (9) of said channel.
- Machine according to Claim 7, characterized in that the upper wall (9) is constructed with its transverse dimension shorter than the length of the cigarettes, oriented transversely to the direction of advance, and the gripper parts are constructed in the form of a fork (107) that is generally perpendicular to the travelling surface (8) and to said upper wall (9) and lies across the direction of advance, the free arms of which, projecting towards the travelling surface (8), are the parts that act on the cigarettes and are separated from each other by a slightly greater distance than the transverse dimension of the upper wall (9).
- Machine according to Claim 8, characterized in that the gripper head (7) is provided with two transverse forks (107) separated from each other in the direction in which the group of cigarettes is fed by a distance such that they overlap, one behind and the other in front, at the rear end and at the forward end, respectively, of the group of cigarettes, with reference to its feed direction.
- Machine according to one or more of Claims 6 to 9, characterized in that the gripper head (7) is moved by a five-bar chain (5) on a generally two-dimensional rectangular path lying in the plane perpendicular to the direction in which the cigarettes are advanced and in this direction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITSV960002 | 1996-01-03 | ||
IT96SV000002A IT1288126B1 (en) | 1996-01-03 | 1996-01-03 | PACKAGING MACHINE, IN PARTICULAR FOR CIGARETTES, OR SIMILAR. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0787648A2 EP0787648A2 (en) | 1997-08-06 |
EP0787648A3 EP0787648A3 (en) | 2000-03-29 |
EP0787648B1 true EP0787648B1 (en) | 2002-07-31 |
Family
ID=11408144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96120964A Expired - Lifetime EP0787648B1 (en) | 1996-01-03 | 1996-12-27 | Packing machine particularly for cigarettes, or similar |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0787648B1 (en) |
DE (1) | DE69622682T2 (en) |
IT (1) | IT1288126B1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209514A (en) * | 1963-09-06 | 1965-10-05 | Schmermund Alfred | Machine for packing block-like articles such as cigarette blocks |
US3355166A (en) * | 1965-06-24 | 1967-11-28 | St Regis Paper Co | Automatic wrapping machine including a suction stop plate |
DE3340408A1 (en) * | 1983-11-09 | 1985-05-15 | Focke & Co, 2810 Verden | DEVICE FOR SHELLING OBJECTS, IN PARTICULAR CIGARETTE GROUPS |
-
1996
- 1996-01-03 IT IT96SV000002A patent/IT1288126B1/en active IP Right Grant
- 1996-12-27 EP EP96120964A patent/EP0787648B1/en not_active Expired - Lifetime
- 1996-12-27 DE DE69622682T patent/DE69622682T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0787648A2 (en) | 1997-08-06 |
EP0787648A3 (en) | 2000-03-29 |
ITSV960002A1 (en) | 1997-07-03 |
DE69622682D1 (en) | 2002-09-05 |
DE69622682T2 (en) | 2003-04-03 |
IT1288126B1 (en) | 1998-09-10 |
ITSV960002A0 (en) | 1996-01-03 |
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