CN102639399A

CN102639399A - Automatic packaging machine

Info

Publication number: CN102639399A
Application number: CN2010800538620A
Authority: CN
Inventors: 詹路易吉·罗西
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-30
Filing date: 2010-09-29
Publication date: 2012-08-15
Anticipated expiration: 2030-09-29
Also published as: US20120180428A1; IT1395722B1; ITGE20090074A1; RU2012117770A; CN102639399B; EP2483162A1; WO2011039710A1

Abstract

Automatic packaging machine, comprising a tubular forming element (1) into which the product (6) to be packaged is introduced and around which at least one layer of plastic film (2) for forming the packages (13) is wrapped; this machine comprises: forming means (7) for wrapping the film (2) around said tubular element (1) so that at least two strips (2',2") of said film are superimposed in the longitudinal direction (L); means (9, 91) for feeding said film (2) along said tubular element (1); at least one welding bar (11) able to perform a longitudinal weld of said superimposed strips of the film (2); said bar (11) is able to move at least in a transverse direction (T) towards or away from said tubular forming element (1); and movable units (14, 14', 14", 114) for transversely welding and cutting the film (2) in tubular form leaving said tubular forming element (1), said movable units (14, 14', 14", 114) being positioned downstream of said longitudinal welding bar (11) on at least two diametrically opposite sides of the film (2).

Description

Automatic packaging machine

Technical field

The present invention relates to a kind of wrapping machine.

Background technology

As known, wrapping machine can be a level or vertical and be manually or automatically in essence, and is used to obtain the packing of the completion of bulk products.In automatic packaging machine, a certain amount of bulk products is introduced into hollow tubular member inside, and said tube element limits the shape of the bag that will obtain.Plastic film is wrapped up with extremely complicated mode around said tube element and by traction downwards and stand the vertical welding through fusion splicing devices (welding means) then in known packets installation.The welding processing of being undertaken by these fusion splicing devices is poor efficiency and discontinuous, because between a welding operation and next welding operation, long time-out is arranged.When the said vertical welding EO that carries out with these horizontal welding devices, must be with the film that forms the packing of product by welding in a lateral direction so that the top of enclose and bottom.And in this embodiment, it is complicated and discontinuous that the horizontal welding of known packets installation is handled.

Summary of the invention

Therefore target of the present invention provides a kind of automatic packaging machine; It overcomes the defective of known packets installation and makes that the packing production cycle is more efficient and quick; Particularly guaranteed that with in fact favourable mode continuous handling with vertical and horizontal welding and transverse cuts plastic film, is obtained comprising the packing of final products by said plastic film.

Said target is used according to the automatic packaging machine of claim 1 through the present invention and is realized.

The further favourable characteristic of this wrapping machine forms the theme of dependent claims.

Description of drawings

Further aspect of the present invention and advantage will be more to be expressly understood non-limiting example and the following description with reference to accompanying drawing from being considered to purely, in the accompanying drawings:

-Fig. 1 illustrates the lateral plan according to wrapping machine of the present invention, comprises that the plastic film that is used for Production and Packaging forms element around the tubulose of its parcel;

-Fig. 2 illustrates the front elevation of this wrapping machine part with high range more;

-Fig. 3 illustrates the side-looking and the cutaway drawing of wrapping machine, illustrate be used for by its process packing plastic film form the collar and vertical fusion splicing devices;

-Fig. 4 illustrates and is used to one of two bands that draw and present the plastic film that wraps up around the tubular form element according to Fig. 1;

-Fig. 5 is illustrated in two unit on each side of film, that be used for horizontal welding and cutting bag, and said unit is provided with the actuating device and the electric power supply apparatus of the association that forms the closed ring path;

-Fig. 6 illustrates the planar view of the said wrapping machine of partly cutting open along the line VI-VI shown in Fig. 5;

-Fig. 7 illustrates the front elevation of modification of the embodiment of this wrapping machine, comprises the system of the bottom that is used for FOLD AND PACK, and its bottom is provided with being depicted as of two positioned opposite and is in the folding component of minor increment each other;

-Fig. 8 illustrates front elevation like the view with Fig. 7, and wherein said folding component is in the state of ultimate range each other;

-Fig. 9 illustrates side-looking and the cutaway drawing of this wrapping machine along the line IX-IX shown in Fig. 7;

-Figure 10 illustrates the planar view of the middle body of Fig. 5 with magnification ratio, relates to two horizontal welding unit, and these two horizontal welding unit face with each other and comprise being depicted as and be in release position and plastic film and insert therebetween cutting blade and blade mutually;

-Figure 11 illustrates the similar view with Figure 10, and wherein cutting blade stretches out so that cut plastic film and separate the packing of being produced by this wrapping machine then from the welding unit of association with the phase blade;

-Figure 12 a and 12b schematically illustrate two positions of cutting blade and phase blade among Figure 10 and Figure 11 and separating of packing respectively;

-Figure 13 illustrates the lateral plan of the band that is used to present plastic film with high range, and it is provided with and power is provided and as the electro-motor of counterweight;

-Figure 14 a, 14b, 14c, 14d illustrate the planar view of the cam rail that is used to guide horizontal welding and cutter unit, and these tracks are provided with the interchangeable parts that is used to form the different length packing;

-Figure 15 illustrates three planar views that are used for the horizontal welding and the unit of cutting packing that are connected to actuating device, and said actuating device forms the closed ring path of two general triangular shapes;

-Figure 16 illustrates the side-looking and the cutaway drawing of the tray of the packing that is used to carry and unload completion;

-Figure 17 illustrates the planar view of modification of the embodiment of this wrapping machine, relates to the unit that is used for horizontal welding and two positioned opposite of cutting packing;

-Figure 18 illustrates these two unit that are used for horizontal welding and cutting packing with the ratio bigger than Figure 17;

-Figure 19 illustrates the lateral plan according to the welding unit with related strut member of Figure 17;

-Figure 20 illustrates side-looking and the cutaway drawing that is used for the distributing box of the discrete material of pack, and said distributing box is disposed in the upper reaches that tubulose forms element;

-Figure 21 a and 21b illustrate two side-lookings and the cutaway view of modification that tubulose forms the embodiment of element, and said tubulose forms element and comprises two groups of baffle plates, and said baffle plate is used to allow discrete material to form the element step wise along said tubulose to move down;

-Figure 22 illustrates the part lateral plan of one of two groups of baffle plates according to Figure 21 a and 21b;

-Figure 23 illustrates the front elevation of one of two groups of baffle plates according to Figure 21 a and 21b; With

-Figure 24 a and 24b illustrate one of baffle plate that is in retracted position and operating position respectively.

The specific embodiment mode

With reference to accompanying drawing and special Fig. 1 with reference to wherein, Reference numeral 1 indication inner hollow and one deck plastic film 2 form element around the tubulose of its parcel, and said film is initially removed around the spool that twines 3 from it.Spool 3 is lazy axles and can rotates around central pin 4.Tubulose forms element 1 can have Any shape according to the packing of the product that will obtain or the shape of bag, therefore can have circle, square, rectangle, polygon or similar profile.The top that tubulose forms element 1 has and is used for inlet mouth 5 that product to be packaged 6 is introduced wherein.Said inlet mouth 5 is shown in its below and has the collar 7 of formation, and the said formation collar has the function that makes plastic film 2 correctly form element 1 parcel around tubulose.The said formation collar 7 comprises 107 and two front angled surface 207 in first rear-inclined surface, and will describe in detail with reference to Fig. 2 of accompanying drawing.The film 2 of continuous sheet form arrives back surperficial 107 of the formation collar 7 via the live roll 8 that is between the said formation collar 7 and the spool 3 with correct lateral attitude.Plastic film 2 is being drawn downwards along the longitudinal axes L of tubulose formation element 1 by a pair of feed shelf 9 and 9 ' when tube element 1 wraps up with tubular form, and feed shelf 9 and 9 ' forms element 1 with respect to tubulose and is positioned at along the relative position of diameter.These with 9 and 9 ' each by pair of rolls 10 and 10 ' operation, at least one of said two rollers is motor driven.The parallel axis alignment of longitudinal axes L of every pair roller 10 and 10 ' edge and tubulose formation element 1.First bar 11 that is used for the said plastic film 2 of vertical welding tubular form be set at be used to present plastic film 2 this to being with the 9 and 9 ' upper reaches, and tubulose forms element 1 inside and holds second back reaction rod 12 that is used for said first vertical welding bar 11.Said vertical welding bar 11 can form the longitudinal axes L displacement up or down of element 1 along tubulose, or on the direction T vertical with longitudinal axes L, laterally forms element 1 or form element 1 displacement towards tubulose away from tubulose.Abutting against said first bar, 11 acting second bars 12 only moves on longitudinal direction L and moves simultaneously with said first bar 11.Tubulose forms the downstream of element 1, on the both sides of the film 2 that forms element 1 away from said tubulose, be provided with two unit 14 and 14 ' that are used for the packing that horizontal welding and cutting obtain, pack 13 for one that comprises specified rate product 6 shown in the figure.These welding unit 14 with 14 ' each with related such as the actuating device of a pair of chain 15 and 15 ' (see figure 6), band etc.These chains 15 and 15 ' each toothedly take turns 16 and twine around a pair of, at least one in said the wheel is connected to the handling device (not shown).Two the welding unit 14 and 14 ' that are fastened to every pair of chain 15 and 15 ' are positioned at along the relative position of diameter with respect to said chain 15 and 15 '; Said chain 15 and the 15 ' side along film 2---for example referring to two chains 15 among Fig. 1---define two sealings and identical circular path, and said welding unit 14 and 14 ' moves along said circular path.

The formation collar 7 is fixed with tube element 1 and is fastened to supporting construction 17---see Fig. 2 of accompanying drawing.Said supporting construction 17 also has the guiding piece 18 that is fastened on it, and the slide block 19 that is used to operate vertical welding bar 11 can slide along guiding piece 18, and said slide block is secured to support frame 20, and said support frame is connected to said slide block 19 via crossbeam 21.That kind as implied above, vertically welding bar 11 also can cross travel, and for this purpose, actuator (not shown) and a pair of lateral guides 22 are provided for this operation.Said vertical welding bar 11 must be always facing to the back reaction rod shown in Fig. 1 12 in welding operating period, and in fact is in contact with it; Therefore form element 1 along tubulose and form the longitudinal slot 101 with suitable shape, said back reaction rod 12 can be in said groove 101 slides within.Longitudinal slot 101 forms element 1 enclose inside so that prevent that product 6 from forming element 1 from said tubulose and coming out towards tubulose, and longitudinal slot 101 forms a kind of vertical recess of suitable shape in essence.The said formation collar 7 107 and two front surfaces 207 and 207 ' in surface, back that comprise as shown in the figure; Surface, said back 107 is visible in Fig. 1; It has gradient; Make film 2 roughly move towards the top that tubulose forms element 1, therefore have gradient upwards, said two front surfaces 207 and 207 ' edge tilt with surface, said back 107 opposite directions and roughly separate the amount with the equal diameters of tubulose formation element 1 each other.Form the collar 7 comprise be positioned at said front surface 207 and 207 ' each downstream, be used to make the overlapping general triangular element 307 and 307 ' of band according to the film 2 of Fig. 1.These are used to make the overlapping element of plastic film 307 and 307 ' stacked on top of each other and intersect each other along their end, thereby but the band of the said film that is properly spaced out each other can pass through between them.The tubulose formation element 1 and the formation collar 7 also are spaced apart from each other and make film can be inserted between them: at this on the one hand; Form the annular chamber 23 that formation has proper width between the element 1 and the said formation collar 7 at said tubulose, be used to introduce the film that will form according to the packing 13 of Fig. 1.Basically; Plastic film with the form of sheet material through forming the collar 7 rear-inclined surface 107 and be wound onto then on two inclined surfaces 207 and 207 '; Thereby owing to the inclination on these surfaces 207 and 207 ' forms two bands and mobile towards each other, a band passes through from overlapping element 307 tops then, and alternative in vitro test is passed through between said element 307 and overlapping element 307 '; At last; So overlapping band is introduced into annular chamber 23 so that obtain tubular plastic film, promptly have form element 1 corresponding shape with tubulose and have overlapping, next through vertical two longitudinal bands of welding bar 11 welding longitudinally movably.

Fig. 3 illustrates the side view cutaway drawing that forms the collar 7.As can see, film 2 is introduced into the annular chamber 23 that is formed between the tubulose formation element 1 and the said formation collar 7.With reference to this figure, form the left-hand side of element 1 at tubulose, can notice to be noted as 2 ' and 2 " two overlapping longitudinal bands of film 2, they are welded to together through vertical welding bar 11.Through being provided with the actuator 24 of related piston 25, said vertical welding bar is cross travel (in the time must carrying out welding) forward as stated, or backward displacement so that move away from tube element 1.Vertically the cross travel of welding bar 11 is by lateral guides 22 guiding, said lateral guides be formed on the framework 20 that supports welding bar 11 in related through hole 26 slides within.Said support frame 20 also supports back reaction rod 12 through arm 27, and in fact said arm 27 is connected to said plate 12 through longitudinal rod 28.Said back reaction rod 12 is as stated in longitudinal slot 101 slides within, and is positioned on the outward flange of said longitudinal slot 101, so as apart from welding bar 11 minimum distance in the face of welding bar 11.Owing to supporting the said support frame 20 of

bar

11 and 12 securely, said

bar

11 and 12 can move up or down the while in a longitudinal direction, with the film that is fused 2 always between them.

Fig. 4 illustrates and is used for one of two bands presenting in a longitudinal direction film 2 downwards, under said situation, is to be with 9.Saidly be with 9 to be driven rotatably by pair of rolls 10 and 10 ', and the film 2 that must be fed said with 9 between tubulose forms the side of element 1 and also contacts with film and be designed to allow with one group of counter roll 29 of presenting said film 2 forward.These counter roll 29 are arranged in and are formed on the longitudinal slot 101 ' inside that tubulose forms element 1, and basic outward flange location along said groove 101 ' is so that contact with film, however not with the atubular extension portion interference around tube element 1 of film.Said longitudinal slot 101 ' be in at the longitudinal slot 101 ' shown in Fig. 2 and Fig. 3 along the relative part of diameter.Said longitudinal slot 101 can as lay with mentioning back reaction rod 12 be used to present film 2 another with other counter roll of 9 '.In this embodiment, therefore longitudinally aiming at welding bar 11 and related back reaction rod 12 with 9 ' shown in Fig. 2 only form in tube element along two relative longitudinal slots 101 and 101 ' of diameter.If for example welding bar 11 will be positioned in respect to becoming 90 ° with 9 ' along those relative feed shelves 9 of diameter and locate; Then will on tube element, form three longitudinal slots; One is used to hold 12, one counter roll that are used to 9 ' of back reaction rod, a counter roll that is used to 9.

Fig. 5 and Fig. 6 with reference to accompanying drawing describe below the horizontal welding unit, and the top that said unit has a packing 13 shown in welding Fig. 1 during packing is handled is with the bottom and make simultaneously and pack function separated from one another.Fig. 6 illustrates two welding unit 14 and 14 ' in the left side of the film 2 that is among Fig. 5.These welding unit 14 or 14 ' each comprise a pair of welding tooth 30 that is hinged to through pin 31 on the strut member 32 that is anchored on plate 33 at free end, said plate 33 is connected to a pair of chain 15 and 15 ' that is used to drive welding unit 14 and 14 ' through a pair of arm 34 with a pair of related axle 35.Therefore each of two plates 33 can move with related welding unit 14 or 14 ' together.These welding unit 14 or 14 ' each also comprise aligning gear, thereby when two welding unit are in the situation that faces with each other, guarantee their correct aligning.This situation can be clear that in Fig. 5; Wherein faced with each other and the said film 2 of welding by two welding unit 14 that are in along the chain of the side of film 2 drives: in fact the welding unit 14 that is in the left-hand side of film 2 is provided with two recesses 36 between the welding tooth 30; The welding unit 14 that is in the right-hand side of film 2 simultaneously is provided with two noses 37 between the welding tooth 30, and said nose has the shape with the form fit of said recess 36.Being used to shown in Fig. 6 drives two chains 15 of welding unit 14 and 14 ' and each of 15 ' is taken turns 16 and 16 ' around this to vertical aligning toothed and twined.Toothed shown in Fig. 6 takes turns 16 and 16 ' around axle 38 bondings, and said axle 38 is connected to driver element 39, said driver element 39 and then is connected, said motor with motor operate in fact make toothed take turns 16 and 16 ' rotate spools 38.In Fig. 6, the fixed sturcture of a pair of circular orbit 41 that has led to electricity is supported in Reference numeral 40 expressions.Four welding unit 14 and each end at plate 33 of 14 ' comprise the arm 42 that is used to support a pair of carbon brush 43, said carbon brush and related energising track 41 contacts.This carbon brush 43 and slip between the related fixedly energising track 41 that is formed on portable welding unit 14 and 14 ' electrically contacts and has guaranteed that electric current is supplied to four

welding unit

14 and 14 '.Each of plate 33 with the location have opposite end, the end of arm 42 to four unit 14 with 14 ' each be provided with another arm 44 of support pair of metal 45; Each of said ferrule 45 is designed on metal ring track 46, slide, and said circular orbit is positioned on the fixed sturcture 40 and belongs to the opposite side of sides with energising track 41.These sliding metal heads 45 transfer heat to the unshowned sensor device that is connected to control unit, and the open and close of said control unit control power supply are so that keep the temperature constant of welding system.Along two welding unit 14 and 14 ' of closed ring path movement drive, the welding unit is also included within said closed ring and correctly guides their bracing or strutting arrangement between moving period aforesaid chain 15 and 15 ' at them.Said bracing or strutting arrangement comprises the fixed cam track 47 that is used for each welding unit 14 and 14 ', and a pair of idler roller 48 is advanced along said track.These rollers 48 are installed on the plate 49, can pivot with respect to arm thereby said plate 49 is connected to related arm 34.The middle body of Fig. 6 illustrates second cam rail 50 of the cutter sweep that is used to be controlled at the outfit welding unit 14 that describes below and 14 '.Be installed in the inside that idler roller 51 on the slip-on head 52 that has been equipped with welding unit 14 and 14 ' is bonded on said cam rail 50.As can noticing from Fig. 5; The welding unit 14 of each of two welding systems and 14 ' is being connected on two driving chains 15 and 15 ' along diameter relative position place with respect to the closed ring path; Must advance along said circular path in said welding unit; And said circular path comprises: the first straight working portion, and two unit for example face with each other and contact with each other along the said first straight working portion in two unit 14; The first that connects arc form; The second straight returning part, two other unit---be two unit 14 ' in this case, it is in along diameter relative position and mutual distance maximum equally---is along the said second straight returning part location; With second annular connecting part.

Therefore, through the above-described unit 14 and 14 ' that is used for horizontal welding and cutting packing, can obtain the packing that there is the completion of a certain amount of product inside.Fig. 7 illustrates a part of comparing this wrapping machine that a plurality of modification are arranged with top description.The back reaction rod 12 that replaces the vertical welding bar 11 shown in Fig. 1, tubulose form element 1 have be positioned at in-to-in, coaxial and have a removable tubulose member 53 with the corresponding shape of its shape with tubulose formation element 1.Said tubular member 53 is as the reaction member that is used for vertical welding bar 11, and thereby its inside of product injection.Thereby in tubulose formation element 1, form the longitudinal slot 201 that can in Fig. 9, see, so that allow tubular member 53 and vertically cooperation between the welding bar 11.In this embodiment, plastic film 2 also is provided with the formation collar 7 shown in Fig. 1 around tubulose formation element 1 parcel and wrapping machine equally.Said tubular member 53 is fixed to movable bar 54, and movable bar 54 supports the band slit attaching parts 65 of one with it.Said bar 54 can the edge moves with the fixed guide 55 of supporting construction 60 one, and actionless tubulose forms element 1 and also is fixed to said supporting construction 60.Said bar 54 is shown in this figure to be dipping fully along guiding piece 55.These guiding pieces 55 form along the side of center plate 56.Said plate 56 57 is passed by the axle of motor driven, and said axle has the disk 59 that is fixed to its end and bonding first is toothed on it takes turns 58.Said disk 59 its peripheries are provided with inserts band slit attaching parts 65 in-to-in eccentric pins.Two lobe formula cams (twin-lobe cam) 61 also be connected to movable bar 54 and have connection on it second toothedly take turns 62.The chain 63 that is used for being sent to disk 59 from the motion of motor drive shaft 57 and is sent to cam 61 at last first and second is toothedly taken

turns

58 and 62 and is twined around these.At zone line, said driving chain 63 also twines around laterally movable roller 66, can guarantee chain tensioning correctly always.Two pins 67 are fixed to each end of said movable bar 54; The right hand end when seeing this figure for example; Each of these pins has the end of the arm 68 that is mounted thereon; The other end of said arm is fixed to another pin 69, and said another pin 69 is fixed on the plate 70, and first folding component 71 is connected on the said plate 70; Said folding component 71 forms element 1 towards tubulose and reaches the point near its vertical diad L, and the minor increment cross travel of the said axis L of distance shown in can scheming from this with respect to said axis L is to the ultimate range of the said axis L of the distance shown in Fig. 8.Motion along with cam 61; Two arms 68 can pivot around the

67 and 69 of association; As will find out from below; Thereby the plate 70 by movable bar 54 and supported folding member 71 forms a kind of articulated parallelogram based, thereby folding component 71 is carried out arcuation motion up or down basically, yet keeps always being in level or the horizontal position with respect to longitudinal axes L simultaneously.Two pins 67 ' in addition are fixed to the left hand end (when seeing this figure) of movable bar 54 similarly; With with same as stated mode; Said pin has the end of two arms 68 ' that are mounted thereon; These two arms are connected to the pin 69 ' that is fixed to plate 70 at the other end; Folding component 71 ' is connected in said plate 70, and said folding component 71 ' and folding component 71 are identical and form element 1 and therefore with respect to vertical diad L and folding component 71 symmetries of packing, said packing will be by forms film 2 acquisitions that element 1 wraps up around said tubulose with respect to tubulose.Two lobe formula cams 61 and two idler rollers 72 and 72 ' cooperation, said two idler rollers 72 are positioned at along the relative position of diameter and are installed on related strut bar 73 and 73 ' with respect to said cam 61 with 72 ': these bars 73 and 73 ' are respectively fixed to the arm 68 and 68 ' towards tubulose formation element 1.Folding component 71 and 71 ' has two functions along the relative side of diameter of the bottom that folds the packing that forms through plastic film 2.

As Fig. 9 of the lateral plan of above-mentioned Fig. 7, the kinematic link of each moving-member operation that allows to describe among Fig. 7 is shown.74 expressions are used for the motor via one group of transmission and deceleration component operation axle 57; Toothedly take turns 58 and be bonded on the said axle 57 and said axle has the disk 59 that is fixed to its end, said disk 59 is provided with to insert and is installed in the band slit attaching parts 65 in-to-in eccentric pins 64 on the movable bar 54.Therefore, following parts are connected to along the movable bar 54 of guiding piece 56 in the vertical directions: being positioned at fixedly, tubulose forms element 1 in-to-in tubular member 53---via the plate 76 that is used for said tubular member 53 is connected to said bar 54; Two lobe formula cams 61---the strut member 77 through being provided with related bearing is connected to and said movable bar 54 bonded assembly bars 78; A plurality of folding components (can see the folding component wherein 71 shown in Fig. 7 among this figure)---by the related arm 68 that is connected to plate 70 and bar 54 via

pivotal pin

67 and 69; At the vertical welding bar 11 shown in Fig. 1, it is cooperated through longitudinal slot 201 and tubulose reaction member 53 and passes through actuator 24 cross travels.Said vertical welding bar 11 is connected to plate 76 through the pass link rod 20 ' of framework 20, thus when movable bar 54 during along guiding piece 55 displacements said welding bar 11 move simultaneously in a longitudinal direction with said tubulose reaction member 53.

The member 71 and 71 ' that Fig. 8 illustrates the bottom that is used for FOLD AND PACK is in apart from tubulose and forms the element 1 and the therefore situation of the longitudinal axes L maximum distance apart of plastic film.In this case, because the rotation of the disk 59 that moves through motor 74, eccentric pin 64 is with respect to the position Rotate 180 shown in Fig. 7 °.The said rotating tee of eccentric pin 64 is crossed the rising that causes movable bar 54 with movable bar one and the band slit attaching parts 64 that engages with said eccentric pin 64, and therefore causes the rising that forms the tubulose reaction member 53 of element 1 slides within tubulose.Toothedly take turns 58 and also be bonded on the axle drive shaft 57, and cause the rotation of two lobe formula cams 61 through driving chain 63---half-twist in this embodiment, so that move to the position shown in Fig. 8 from the position shown in Fig. 7.The rotatablely moving of the rising campaign of simultaneous bar 54 and cam 61 produces the pivoting action of a pair of arm 68 and 68 ' and to top offset, this is provided with bar 73 and 73 ' to arm 68 and 68 ', and bar 73 and 73 ' has the related roller 72 and 72 ' of advancing along cam 61.Because thereby every pair of arm 68 is secured to bar 54 and is fastened to the fact that related plate 70 and 70 ' forms a kind of hinged parallelogram with 68 '; In order to move to situation shown in Figure 8 from situation shown in Figure 7; Basically the angular member 71 and 71 ' that is connected to plate 70 and 70 ' is raised and moves away from, but forms element 1 and therefore always keep the level that is in or horizontal position with respect to the longitudinal axes L of film with respect to tubulose.In order to guarantee the correct tensioning of driving chain 63, live roll 66 is to outer displacement and therefore form element 1 away from tubulose, moves to the situation shown in Fig. 8 from the situation shown in Fig. 7.Also can be expressly understood and how to move through 180 °, reduce movable bar 54 and make two lobe formula cams 61 half-twist and transfer to situation shown in Figure 7 once more again from the situation shown in Fig. 8 through eccentric pin 64 is rotated again.These elements 71 and 71 ' that are used for the bottom of FOLD AND PACK are positioned at the upper reaches of the horizontal welding shown in Fig. 1, Fig. 5 and Fig. 6 and cutter unit 14 and 14 '.

Figure 10 illustrates two welding unit 14 that face with each other and be designed to carry out welding operation, i.e. the therebetween unit of film among Fig. 52.Each of these horizontal welding unit 14 comprises box-like body 79 and 79 '; Except fusion splicing devices, said box-like body also comprises the film cutter sweep.In this embodiment, cutting blade 80 ' is positioned at the inside of the box-like body 79 ' of the welding unit 14 that when with the aid of pictures, is in the top; Simultaneously, have the inside that is positioned at the box-like body 79 of the unit 14 that is in the below with the blade mutually 80 of the receiving surface of the profile correspondingly-shaped of blade 80 '.Obviously, blade also can be put upside down with blade mutually, and promptly blade 80 ' can be positioned at box-like body 79 inside of the unit 14 that is in the below and the box-like body 79 ' inside that phase blade 80 can be positioned at the welding unit 14 that is in the top.Blade 80 ' and phase blade 80 all support by passing the through hole 82 that is formed in the plate shown in Fig. 6 33 and the related tubular member 81 related with

chain

15 and 15 '.Be used to guide the blade 80 ' and the axle 83 of blade 80 mutually also to be fixed to said plate 33 and can close linked hole 84 slides within being formed at 52 in-to-in shown in Fig. 6.Box-like body 79 ' and 79 also is connected to plate 33 through the supporting member 85 that is arranged on tube element 81 sides.Two unit 14 provide electric power through electric coupler 86.As stated, 50 expressions are used for Cutting Control blade 80 ' and two cam rails of blade 80 mutually, and connection 52 idler roller 51 is to the end advanced in said track inside.Therefore because close that the translation of syncranium 52 is moved and therefore tube element 81 move being formed at two pass linked hole 82 in-to-in translations in the plate 33, said blade 80 ' is with blade 80 can be mobile in opposite direction transverse to film 2 mutually.Figure 10 illustrates the blade 80 ' that is in ultimate range each other and blade 80 mutually; And Figure 11 illustrates and is engaged with each other so that cut the identical blade of film 2 and blade mutually: like what can notice through relatively Figure 10 and Figure 11; Two statures 52 move towards moving each other to carry out transverse translation, and between this moving period through axle 83 in through hole 84 sliding motion and be directed at through hole 82 in-to-in sliding motions through tube element 81.

The situation that illustrates respectively among Figure 10 and Figure 11 is also summarily respectively shown in Figure 12 a and Figure 12 b; In Figure 12 a; Can see that cutting blade 80 ' is with respect to phase blade 80 lateral alignment; But be spaced from, and can see that in Figure 12 b said blade 80 ' engages with corresponding blade mutually 80.Each of cam rail 50 that guiding blade and the roller 51 of blade mutually support said head within it is that blade 80 ' must have towards with the film that is cut 2 out-of-position parts 50 ' with the zone of blade 80 joints mutually at cutting zone; So that allow blade and blade is mobile towards each other mutually, so cam rail 50 is close to each other along this part 50 '.

Figure 13 illustrates two of being used to present film 2 and is with 9 and 9 ', and film has shape and film form element 1 around the tubulose of its parcel the cooresponding tubular structure of shape.These move with the 9 and 9 ' motor 87 through operation axle drive shaft 88, and one of two rollers with 9 ' are that roller 10 ' and first is toothedly taken turns 89 and is bonded on the axle drive shaft 88 in this embodiment.Rotating band or chain 90 are toothedly taken turns 89 and are twined around said, and walk around to be bonded to be used to support and to rotate and saidly toothedly take turns 91 with second on the axle 92 of 9 roller 10 '.Said then chain twines around a pair of toothed power wheel 93.Be installed on related plate 94 and 94 ' with 9 and 9 ', said plate 94 and 94 ' is carried out respectively around

axle

92 and 88 slight pivoting actions.These plates 94 and 94 ' and then be installed on the pivot structure 95, said pivot structure is hinged on the fixed sturcture (not shown) through pin 96 pivotly.Support belt 9 and 9 ' plate 94 and 94 ' comprise arm 97 and 97 ' respectively at the top, the bar 99 that is used to connect said plate 94 and 94 ' is connected to said arm 97 and 97 ' through a pair of

pivotal pin

98 and 98 '.Operation film feed shelf 9 and 9 ', make them on the direction of arrow T and T ', move and the inboard that always keeps them with will be contacted by vertical film of presenting downwards 2.In fact guarantee these with the pivot rods 99 of pivot structure 95 combination and be with 9 and 9 ' always with tubulose formation element 1 and thereby aim at film 2.And these with 9 and 9 ' can be adapted to any width or diameter tubulose form element 1; In fact,, will be in than illustrate the low position of situation and always contact with 9, and will be in than illustrate the high position of situation and equally always contact with film 2 with 9 ' with film 2 if we imagine that tubulose forms element 1 and has than big width or diameter shown in the figure.Through also having the counterweight function (if therefore be with 9 reductions and be with 9 ' to raise; Motor 87 will also be raised) motor 87 and the fact that pivots with respect to pin 96 through structure 95 (plate 94 can be with respect to

axle

92 and 88 pivots with 94 '; The bar 99 of connecting panel so can pivot around pin 98 and 98 '), making becomes possibility with 9 and 9 ' this position comformability.The correct qualification of the weight of motor 87 guarantees the correct pressure with 9 and 9 ', and it must form element 1 along tubulose with film 2 and present downwards.

Figure 14 a illustrates one of cam rail 47 that has one of two welding unit 14 shown in Fig. 6.Roller 48 is supported by pivot plate 49, and said pivot plate 49 is connected to related arm 34 and thereby is connected to plate 33 through pivotal pin 100.The actual heat sealing machine that does not go out among the figure is positioned at the side of plate 33.The said plate 49 that pivots around pin 100 allows cam rail to form the curve that also has small curvature radius, because roller 48 can be adapted to these curves.Under four kinds of situation of all shown in Figure 14 a-d, cam rail 47 has working track part 147a-d, and promptly two welding unit 14 and 14 ' are along its part that faces with each other and carry out the horizontal welding operation, and are for example as shown in Figure 5.Each of these working portions 147a-d has the pin 102 of the remainder that is used for fixing cam rail 47 in its end, and thereby these working portions 147a-d interchangeable.Working portion 147a shown in Figure 14 a is straight, thereby effectively weld overlaps with said working portion, and is represented by A1.Working portion 147b shown in Figure 14 b alternately has offset portion 247b, and at this place, unit 14 or 14 ' is spaced apart from each other and therefore welding does not take place, and effectively therefore weld is represented by sections A2 in essence.Under the situation shown in Figure 14 c, live part A3 is shorter than part A 2, because offset portion 247c has length, and in Figure 14 d, live part A4 has littler length, and the offset portion 247d of cam rail 247 has the length bigger than afore-mentioned.If supposition is in each time of situation shown in Figure 14 a-d; Advance with identical speed along cam rail with related plate 33 in the welding unit; Part A 1-A4 represent to carry out package base horizontal welding time that will spend, in other words, weld time is short more; The length of working portion A1-A4 is short more, and the length of the bag that utilizes this wrapping machine to obtain is more little.In this embodiment; If cam rail 47 is provided with the working portion of no offset portion; Shown in Figure 14 a, with obtaining than the bigger packing of using shown in Figure 14 b-d subsequently of working portion length, alternatively; If use the working portion that comprises offset portion 247d shown in Figure 14 d, then will obtain the packing of the length littler than other situation of all shown in Figure 14 a-c.

Figure 15 illustrates another modification of this wrapping machine, wherein has to be engaged with each other so that three pairs of horizontal welding unit of welding film 2, i.e. the first pair of welding unit 14, second pair of unit 14 ' and the 3rd pair of welding unit 14 ".Therefore three pairs of

welding unit

14,14 ' and 14 " be set for and be in edge each kinematic link the side of the film that is fused 2.Similar shown in situation and Fig. 5, in Fig. 5, two welding unit 14 and 14 ' are set on each driving chain 15.In this embodiment,

welding unit

14,14 ' and 14 " each advance along triangle closed ring path, take turns 16 and twine thereby three of arranging around mutual distance of driving chain 15 are toothed identically.Welding

unit

14,14 ' and 14 " along be in one toothed take turns and next toothed the wheel between chain part midway, thereby they are also with same distance separated from one another.The energising track 41 that carbon brush 43 slides above that will also have triangular shaped, because cam rail 47 will guide

welding unit

14,14 ' and 14 ", therefore said track 47 is followed and is in driving chain 15 and the toothed 16 exterior paths of taking turns.

Figure 16 illustrates the device that is used to select and unload from the packing of the completion of this wrapping machine.103 expression anchoring base for example are the form of disk, comprise the mouth 104 of the packing 13 that is used to unload completion along its periphery.Fixed disc 103 has the through hole 105 that receives through the axle 106 of operation associated device (not shown) rotation in central authorities.Rotating circular disk 107 is connected to said axle and is provided with one group of compartment 108, and what said compartment was used for after top that wrapping machine has been packed with each and welding of Related product packing and bottom, finishing receiving packs 13.These packings since disk 107 and with respect to fixed disc 103 along given arc-shaped path of movement, arrive unloading mouth 104 up to them, for example load-transfer device etc. can be set at downstream, is in said unloading mouth below.

All figure shown in the reference will be described below the operation of this wrapping machine now.In the first wrapping machine operational phase, plastic film 2 must be manually forms element 1 location around tubulose, up to the zone near feed shelf 9 and 9 ', saidly is with 9 and 9 ' initially will be disposed in the said tubulose formation of distance element 1 suitable distance.The operator around form the collar 7 back surperficial 107 and then around front surface 207 and 207 ' wrap film 2, and then with its insertion annular chamber 23: another band that a band of film 2 will be positioned in triangular element 307 tops and film will be positioned between two overlapping triangular elements 307 and 307 '.At this, film 2 presents tubular form, has cooresponding two the overlapping longitudinal bands 2 ' of shape and 2 that form element 1 with tubulose ", and film 2 is once more by manual movement, up to the zone of

feed shelf

9 and 9 '.Because around pin 96 rotations of related supporting construction 95, these are oriented to correctly contact around tubulose with 9 and 9 ' and form the film 2 that element 1 is arranged.Through the motor 87 that also has the counterweight function, guarantee saidly to form contacting between the element 1 with film 2 and tubulose with 9 and 9 '.As stated, can thereby be applicable to that with 9 and 9 ' tubulose of any width or diameter forms element 1.In this, motor 87 activated and the film 2 of tubular form is presented in roller 9 and 9 ' beginning downwards.During the presenting downwards of film 2, vertically welding bar 11 with back reaction rod 12 or tubular member 53 to bottom offset, and vertical two overlapping bands of welding film 2.Bar 11 is by the device shown in Fig. 9 and mechanism's operation.Said bar 11 must in case the part of film 2 is fused, then form element 1 with cross travel so that move away from tubulose vertically to move down than the speed that the speed of the film that is fused 2 is big, and back reaction rod 12 or tubular member 53 keep static simultaneously.Bar 11 and bar 12 or tubulose reaction member 53 upwards longitudinal travel and therefore bar 11 will form element 1 cross travel so that form new vertical welding towards tubulose once more.Because two overlapping bands 2 ' of

film

2 and 2 " said vertical welding must be carried out continuously, so that film 2 forms moving of element 1 along tubulose is must quilt suitably synchronous with the circulating motion of bar 11.When film 2 arrive tubuloses form elements 1 the end and from it outstanding suitably apart from the time, the first horizontal welding unit for example two unit 14 carries out the initial welding of the bottom of first packing, the product of the appropriate amount inlet mouth that formed element 1 via tubulose is introduced simultaneously.In case this first welding operation is done; For example then considering has the structure of two unit 14 and 14 ', these one or two unit 14 that carried out welding must be in ultimate range each other and apart from the second two unit 14 ' replacements of film 2 ultimate ranges for each conveyer chain 15 shown in Fig. 1 and 5.Obviously, formation is moved with identical speed with 15 ' along the driving chain 15 of the circular path of the side of film 2.Arriving operating position in the second two welding unit 14 ' is the time durations that the position spent that they face with each other; Comprise product and move between closed ring conveyer chain 15 and 15 ' along the packing of bottom weld; Therefore and face with each other and on time when these second welding unit 14 '; First packing 13 is carried out the welding of package top, like what in Fig. 1, see.The bottom of the next one packing that will be formed is formed on the said top of first packing 13.In case welding is accomplished, cutting blade 80 ' and blade 80 are mutually stretched out so that obtain the packing of completion from said the second two welding unit 14 ', and the packing of completion is allowed to one of compartment 108 that falls into rotating circular disk 107.Thereby the circulation that is used for Production and Packaging is recurred and is not interrupted; Comprising three

welding unit

14,14 ' and 14 shown in Figure 15 " the situation of structure in so same because advantageously vertically welding bar 11 and

horizontal welding unit

14,14 ' and 14 " all owing to conveyer chain 15 and 15 ' and along the closed ring path movement.Like what find out from above; Before the bottom weld of packing; This wrapping machine can be provided with folding component 71 and 71 ', and said folding component 71 and 71 ' is via moving simultaneously according to motor of Fig. 7 and 8 control lever 54 74 and articulated jib 68 and 68 ' and forming member 1 or form member 1 and so towards the film 2 of tubular form or away from film 2 side travels of tubular form away from tubulose towards tubulose.These folding components 71 and 71 ' have folding two functions along the relative band of diameter that will form the film of packing 2, and its each be positioned at about 90 ° with respect to the horizontal welding unit 14 and 14 ' that is arranged in said folding component downstream and locate.Since the roller 72 of on two lobe formula cams 61, advancing with 72 ' with the rotation of cam 61, these folding components 71 and 71 ' mobile also be continuous, thereby the motion of these folding components also must be synchronous with all the other moving-members of this wrapping machine.

The distortion of this wrapping machine will be described below, wherein vertically welding bar 11 with respect to tubulose form element 1 with therefore with respect to film 2 carry out on direction T backward and cross motion forward.Said motion is owing to the linear actuators that summarily illustrates among Fig. 1 150 becomes possibility.In this embodiment, said vertical welding bar 11 and Figure 17, two relative weldings shown in 18 and 19 and cutter unit 114 packings of weldings simultaneously.The motion of said bar 11 and said unit 114 obviously will be synchronously.With reference to this Figure 17,18 and 19, each of said unit 114 that is used for horizontal welding and cutting packing comprises a pair of welded joint 151.Cutting blade 80 ' is inserted between two statures 151 of the welding that when seeing Figure 17 and 18, is in right-hand side and cutter unit 114, and phase blade 80 is inserted between two statures 151 of the unit 114 that is in left-hand side simultaneously.Each of two unit 114 be connected to the linear actuators 152 that is provided with related strut member 153 and can before and after side travel, and therefore towards or move away from two films 2, related unit 114 is used for horizontal welding or cutting packing.Each of unit 114---is for example seen the unit that is equipped with blade 80 ' shown in Figure 19---and is passed the opening 154 that is formed in the crossbeam 155.As can in Figure 18, see, the appropriate location that two crossbeams 155 face with each other and two film 2 is sandwiched between them, wherein during welding and cutting, two unit 114 will pass crossbeam 155.Each of crossbeam 155 is supported by stay bearing plate 156 in each end, for example referring to Figure 19, can see that wherein each crossbeam is provided with two stay bearing plates 156 that are connected to its end.Each of plate 156 is provided with pair of pin 157, and plate 156 is connected to related driving chain 158 through said pin 157, and said driving chain 158 is taken turns 159 and carried out the general triangular motion around three of disposed at equal distance each other are toothed.The structure of holding these two welding unit 114 comprises two parallel side walls 160 that link together through crossbeam 161.Track 162 with two symmetric arrangement of general triangular shape is fixed to each of said sidewall 160---at this one side comparison diagram 17 and 19.The plate 156 of supporting traverse 154 moves along these triangle tracks 162 through two pair rollers 163, and said roller 163 inertia are advanced and contacted with the either side of said track.Every pair of said roller 163 is secured to plate 164, and said plate 164 freely pivots around the center pin 165 with plate 156 one, so that follow curve along the triangular paths of track 162.Four driving chains 158 are along related tracks 162 location, and in every pair of chain on being arranged on each sidewall 160, these chains 158 are symmetric arrangement relative to each other also, like what can from Figure 17, see.These chains can be through making motor 166 operations of related axle 167 rotations, and said axle 167 extends through said structure from a sidewall to another sidewall, and has bonding a pair of identical and counterrotating gear 168 on it first.In essence, axle drive shaft 167 causes two gears 168 rotation, and these two gear bondings two axles on it are that said axle drive shaft 167 passes said structure from a sidewall to another sidewall with driven shaft 167 ', thereby guarantees that in fact four chains 158 are synchronized with the movement.167 ' representes other toothed other driven shaft of taking turns, and the bottom in Figure 17 illustrates.Significantly, in the chain 158 of the drive plate 156 of every pair of symmetric arrangement, given chain moves on the direction opposite with other chain.Like what from Figure 17, see, this each part to each track of the track 162 of symmetric arrangement is provided with plate 156, and said plate supports the related crossbeam that is provided with opening 154 155.Therefore, in essence, said structure will be provided with three pairs of crossbeams 155, and each of said crossbeam is supported by a pair of plate 156.These crossbeams 155 are taken turns 159 along upper toothed shown in Figure 17 and contacts with two films, and keep contact between the two up to their arrival near toothed 159 the zone of taking turns, two belows.As can understand, because said triangle track, the two films 2 that therefore are used to form packing in fact always contact with the pair of beams 155 of rotation on triangle track 162, have guaranteed continuity favourable during packaging operation.

As stated, in the modification of said wrapping machine, vertically welding bar 11 and two horizontal weldings and cutter unit 114 are operated together.Consider the situation shown in Figure 17, when two in the crossbeam 155 in place and when clamping two film 2, bar 11 is formed element 1 (see figure 1) displacement and carries out vertical welding of two overlapping bands of film 2 towards tubulose through actuator 150.Simultaneously, two unit 114 pass two films 2 displacements that are formed on two associated openings 154 in the crossbeam 155 through two actuators, 152 courts.Each of these unit is equipped with two welded joints 151; Thereby be in 151 in Figure 17,18 and 19 the top welding is in two film bands of the package base at the upper reaches, two statures that are in the bottom simultaneously are in welding two film bands at top of the packing in downstream.Simultaneously, will be in these two packing separation of upstream and downstream with the blade 80 ' that related phase blade 80 is cooperated.The cutting operation that simultaneous vertical welding, horizontal welding and being used for separates packing need have very short interruption in the wrapping machine cycle; Said interruption can be restricted to has about 1/10 second time period, thereby the processing that this wrapping machine is implemented is actually continuous---and in the modification of just describing also is like this.

Figure 20 illustrates the distributing box 169 of the discrete material that is used for distributing the inlet opening 5 that will be introduced in tubulose formation element.Said discrete material will be packed in the above described manner.Distributing box 169 comprises central metering units 171, and said central metering units is divided into two chambeies 172 and 172 ', and a certain amount of discrete material 173 can be introduced in the said chamber via the top mouth 170 that enters the mouth.Through the mode of example, be filled with the chamber 172 of discrete material 173 shown in the figure.The bottom in these chambeies and top are closed through removable hatch door: chamber 172 is through hatch door 177a closed top and through hatch door 177b closing bottom, and chamber 172 ' is closed and closed through hatch door 178b in the bottom through hatch door 178a at the top.Said central location 171 is supported by suitable securing supports 174 on two opposite sides, simultaneously each among hatch door 177a, 177b, 178a and the 178b through related linear actuators 179 at a direction or another direction top offset.Said device 169 comprises diapire 175 in the downstream of central location 171, and said diapire is provided with and is used to allow discrete material 172 to get into the opening 176 that tubulose forms the inlet mouth 5 of element from said unit 171.

In essence, distributing box 169 guarantees that a certain amount of product always arrives tubulose with effective and fast speed mode and forms element, thereby improves the speed of this wrapping machine operational processes greatly.Consider the situation shown in Figure 20, material 173 is introduced in the chamber 172 through the open top in chamber 172, and said open top is opened owing to hatch door 177a is in retracted position.Bottom hatch door 177b then seals.The hatch door 178a and the 178b in another chamber 172 ' are in opposite location just, top hatch door 178a sealing just and bottom 178b opens.When the hatch door 177a in chamber 172 was opened, material got into inlet opening 5 through gravity: hatch door 177a and 178b sealing simultaneously and hatch door 178a open, and allow a certain amount of other discrete material to be injected in another chamber 172 '.Said process is repeated, and discrete material alternately arrives inlet mouth 5 via chamber 172 and chamber 172 ' at last, and when a chamber was cleared, another chamber was filled it up with simultaneously.

Figure 20 illustrates three the movable baffle plate 182a-c and the 183a-c of two groups of positioned opposite.More or less quantity that these baffle plates also can comprise than illustrate; These baffle plates are arranged to each other appropriate intervals to be opened, and has formation forms the internal channel 180 (discrete material 173 via said internal channel 180 through) of element 1 along tubulose the alternately function of step.These baffle plates have the discrete material that prevents pack in essence and fall the function of bottom from the top of tubulose formation element straight through gravity one road unobstructed ground.Not solid or have under the situation of resistant property that this effect of falling is actually deletrious and damages discrete material at discrete material.As can see, one group of baffle plate and another group baffle plate alternately, it is following therefore to form the baffle plate sequence that the top of element begins from tubulose: 182a, 183a, 182b, 183b, 182c and 183c.Every group of removable baffle plate is connected to connecting panel 184 and passes through associated actuator 185 displacement up or down.Each of these baffle plates can be processed and must be had certain flexible and elasticity by plastics or metal, thereby their can be suitably crooked.Two chambeies 181 and 181 ' that are used for holding respectively baffle plate 182a-c and the 183a-c of these two groups of positioned opposite are formed on the outside of wall 186 of two positioned opposite of centre gangway 180 (discrete material 173 is through said centre gangway 180).Each of the wall 186 of these positioned opposite is provided with hole 187, and each of said baffle plate is passed said hole 187 and given prominence to from the chamber 181 and 181 ' of association.As can see, chamber 181 and 181 ' is at least in open-top, so that permission baffle plate 182a-c and 183a-c give prominence to from the top and operate through related actuator 185.

Set pin 188 is arranged in the inside in each chamber---chamber 181 seen of Figure 22 for example---and engage with baffle plate along the eyelet that is formed on baffle plate 189---in this referring to the front elevation of Figure 23 that three baffle plate 182a-c are shown.The length of these eyelets limits simultaneously each advance up or down of three baffle plates moving in fact.

Each of these baffle plates---for example referring to the baffle plate 182a shown in Figure 24 a and the 24b---is formed on two curved slot guiding in two relative walls of said centre gangway during it moves into centre gangway 180 and shifts out centre gangway 180.These illustrate one of said groove, promptly are formed on the groove 190 in the wall 186 of centre gangway 180.

Can easily understand the operating principle of these baffle plates.Therefore in Figure 21 a, three baffle plate 182a-c are in and dip, and promptly from the hole 187 in chamber 181, stretch out fully and are formed for from the step of the discrete material 173 of inlet mouth 5 supplies.Therefore said material is fallen on the first baffle plate 182a.Another group baffle plate 183a-c is in retracted position and raises fully.In this, baffle plate 182a-c is raised and withdraws, and owing to their elasticity presents the position shown in Figure 21 b, baffle plate 183a-c reduces and insertion passage 180 simultaneously.Saidly be inserted through the elastic deformation of said baffle plate and carry out, said baffle plate is by groove 190 guiding above-mentioned and/or be inserted into slit 192 inside that are formed in the wall 186, and wall 186 is relative with the wall that egress hole 187 is formed at wherein.Discrete material 173 drops to the first baffle plate 183a from the first baffle plate 182a that has withdrawn then, little by little, move towards the bottom that tubulose forms element 1 steppingly.In this, baffle plate 183a-c is contracted and raises, and simultaneously baffle plate 182a-c stretches out and reduction and discrete material drop to baffle plate 182b from baffle plate 183a once more.Said operation will be recurred, and pack with preparation the bottom that arrives tubulose formation element up to discrete material.

Claims

1. automatic packaging machine comprises that tubulose forms element (1), the product (6) of pack is introduced into tubulose forms in the element; The plastic film of one deck at least (2) that is used to form packing (13) forms the element parcel around said tubulose; It is characterized in that said wrapping machine comprises: form device (7), said formation device is used for said film (2) is formed element (1) parcel around said tubulose; Thereby make at least two bands (2 ', 2 ") of said film go up overlapping at longitudinal direction (L); Be used for forming element (1) and present the feeding means (9,9 ') of said film (2) along said tubulose; At least one welding bar (11); Said bar can carry out vertical welding of the overlapping said band of said film (2), and said bar (11) can be gone up at horizontal direction (T) at least and form element (1) or form element (1) away from said tubulose mobile towards said tubulose; Be used for horizontal welding and cutting and leave the removable unit (14 of film (2) that said tubulose forms the tubular form of element (1); 14 ', 14 ", 114); said removable unit (14; 14 ', 14 ", 114) are positioned at the downstream of said vertical welding bar (11) and are at least two of film (2) along the relative side of diameter.

2. according to the wrapping machine of claim 1; It is characterized in that: said vertical welding bar (11) forms element (1) with respect to tubulose also can move said removable horizontal welding and cutter unit (14,14 ' on arbitrary direction of longitudinal direction (L); 14 ") be fixed to guiding and driver element (15; 15 ', 47), said guiding and driver element allow said removable horizontal welding and cutter unit following circulation closed ring path movement.

3. according to the wrapping machine of claim 1; It is characterized in that: said removable welding bar (11) is followed mobile the comprising in circulation closed ring path: first vertical welding on the direct of travel of film (2) is moved, and said removable welding bar was positioned at apart from tubulose and formed unit (1) minimum distance this moment; Form second cross motion of element (1) away from tubulose; With said first vertical welding travel direction opposite sense on the 3rd vertical return movement; With the final cross motion that forms element (1) towards tubulose.

4. according to the wrapping machine of claim 1; It is characterized in that: said removable vertical welding bar (11) comprises reaction device (12,52), and said reaction device is positioned at tubulose formation element (1) inside and can be along the longitudinal movement with said movable bar (11); Said tubulose forms element and is provided with longitudinal slot (101; 201), said longitudinal slot is designed to allow said movable bar (11) and related reaction device (12,53) cooperation.

5. according to the wrapping machine of claim 3; It is characterized in that: said reaction device comprises osed top longitudinal slot (101) the in-to-in back reaction rod (12) that is positioned at along tubulose formation element (1) formation; Said back reaction rod (12) is positioned to flush with the outside face of said tubulose formation element (1), thereby makes and will be positioned between said back reaction rod and the vertical welding bar (11) by the overlapping band of the film of vertical welding (2).

6. according to the wrapping machine of claim 3; It is characterized in that: said reaction device comprises that being positioned at tubulose coaxially forms element (1) in-to-in tubular member (53), and said tubulose forms element (1) and is provided with the longitudinal slot (201) that allows cooperation between said removable vertical welding bar (11) and the said tubulose reaction member (53).

7. according to the wrapping machine of claim 1; It is characterized in that: said removable vertical welding bar (11) is connected to the actuated slider (19) of sliding along the longitudinal guide spare (18) that is fixed to supporting construction through related removable framework (20), and said slide block (19) is through the displacement of proper handling device.

8. according to the wrapping machine of claim 7; It is characterized in that: said framework (20) is provided with through hole (26); Said through hole is the lateral guides (22) of receiving actuator (24) slidably, and said actuator can make said removable vertical welding bar (11) direction or other direction top offset in a lateral direction.

9. according to the wrapping machine of claim 1; It is characterized in that: said tubulose forms element (1) and comprises the formation collar (7) at the upper reaches; Said formation cover is equipped with rear-inclined surface (107), at two front surfaces (207 that tilt with said back surface (107) opposite direction; 207 ') and be used to make overlapping at least two the overlapping elements (307,307 ') of two bands around the plastic film of said front surface (207,207 ') parcel; Said overlapping element (307,307 ') is properly spaced out each other.

10. according to the wrapping machine of claim 9, it is characterized in that: form the annular chamber (23) that is formed for forming element (1) insertion and wrap film (2) between the element (1) and the said formation collar (7) at tubulose around said tubulose.

11. wrapping machine according to claim 1; It is characterized in that: be used for forming element (1) and present the said feeding means of film and comprise at least one pair of band (9 along tubulose; 9 '); Said at least one pair of band forms element (1) at two along relative position of diameter and tubulose and contacts also thereby with film (2) and contact and be provided with suitable conveying roller (10,10 ').

12. wrapping machine according to claim 11; It is characterized in that: said film feed shelf (9; 9 ') each is advanced along one group of counter roll (29), and said counter roll is groove (101 ') location longitudinally, and said longitudinal slot forms element (1) along said tubulose and forms.

13. wrapping machine according to claim 1; It is characterized in that: the said guiding that is used for guiding and drives removable horizontal welding and cutter unit (14,14 ', 14 ") and driver element (15; 15 '; 47) form two sealings and identical circular path leaving on the sidepiece of film (2) that tubulose forms element (1); at least two (14,14 ') of said removable unit seal and each of identical circular path is constrained on along on the relative position of diameter along these two, thereby each the welding unit (14; 14 ') that is in film one side is along the straight work weld of said circular path and be in corresponding welding unit (14, the 14 ') combination of film opposite side.

14. wrapping machine according to claim 13; It is characterized in that: by said guiding and driver element (15; 15 ', 47) each of the said circular path that forms comprises the first straight work weld, the first arc connecting bridge, the second straight returning part and the second arc connecting bridge.

15. wrapping machine according to claim 13; It is characterized in that: by said guiding and driver element (15; 15 ', 47) each of the said circular path that forms has triangular shaped and comprises three straight parts, and the location is useful on the removable unit (14 of horizontal welding and cutting film on each straight part; 14 ', 14 ").

16. the wrapping machine according to claim 13 is characterized in that: said welding unit (14,14 '; 14 ") each comprises welding tooth (30) and cutter sweep (80,80 ') on a side, said welding tooth (30) is fastened to supporting member (32) through swivel pin (31); said supporting member is fastened to and is used for along said closed ring path drives said welding unit at least one pair of chain (15,15 ') or the band of (14; 14 ', 14 ").

17. the wrapping machine according to claim 16 is characterized in that: be used to drive the said chain (15,15 ') of welding unit or each of band and twine around at least one pair of toothed wheel (16,16 ') of aiming in a longitudinal direction.

18. the wrapping machine according to claim 16 is characterized in that: each of said driving chain (15,15 ') or band is twined around three toothed wheels (16), and these three toothed wheels are each other equidistantly arranged, so that form said triangle circular path.

19. the wrapping machine according to claim 17 or 18 is characterized in that: at least one of said toothed wheel the (16,16 ') is connected to S. A. (38), and said S. A. is connected to related handling device.

20. wrapping machine according to claim 16; It is characterized in that: each removable welding and cutter unit (14; 14 '; 14 ") be included in aligning gear (36,37) between the said welding tooth (30), this aligning gear is used to allow to be in correctly the aiming at and relative positioning with the second related removable unit (14) along another circular path setting of the opposite side that is positioned at film (2) along the first removable unit (14) that circular path is provided with an of side of film (2).

21. wrapping machine according to claim 20; It is characterized in that: this aligning gear comprise be formed on the first removable unit (14) at the nose (37) between the said welding tooth (30) and be formed on the respective slot (36) on the second removable unit (14), the said second removable unit must combine with the said first removable unit (14) during the horizontal welding of film (2) and cutting.

22. the wrapping machine according to claim 16 is characterized in that: support said removable welding unit (14,14 '; 14 " supporting member) (32) is connected to stay bearing plate (33), and arm (42) is secured to said stay bearing plate (33), and said arm has fixing a plurality of contacts (43) on it; said contact is realized moving contact along energising track (41), and said energising track is followed the said driving chain (15,15 ') of removable unit (14,14 '; 14 ") or the path of band.

23. wrapping machine according to claim 1; It is characterized in that: said removable welding unit (14; 14 ', 14 ") each comprises the pair of rolls (48) of advancing along cam rail (47), and said cam rail is the said removable unit of guiding (14; 14 ', 14 ") during said removable unit carries out circulatory motion along said closed ring path.

24. the wrapping machine according to claim 23 is characterized in that: the said roller (48) of advancing along said cam rail (47) is secured to a pivot plate (49), and said pivot plate is pivotally mounted on the arm (34) that is fixed in said stay bearing plate (33).

25. wrapping machine according to claim 1; It is characterized in that: each of said removable horizontal welding unit (14,14 ', 14 ") comprises ferrule (45); said ferrule is designed to slide along related metal ring track (46); so that detect the service temperature of said removable unit (14,14 ', 14 ").

26. wrapping machine according to claim 1; It is characterized in that: said removable horizontal welding and cutter unit (14; 14 ', 14 ") each comprises box-like body (70,79 '); said box-like body has at least one blade (80 ') or the phase blade (80) that is positioned at it, and said blade or phase blade can move with transverse cuts film (2) on arbitrary direction of horizontal direction.

27. wrapping machine according to claim 26; It is characterized in that: said blade (80 ') or phase blade (80) are connected to head (52); But the roller (51) that said head cross travel and carrying are advanced along the cam rail (50) of control said blade (80 ') or said phase blade (80); Said head (52) is connected to said blade (80 ') or said phase blade (80) through tube element (81), and said tube element passes said stay bearing plate (33).

28. wrapping machine according to claim 27; It is characterized in that: said cam rail (50) is provided with suitable Offset portion (50 '), blade mutually (80) cooperation of the blade (80 ') that said Offset portion allows the first removable horizontal welding and cutter unit (14) and the second removable unit (14) that combines with the said first removable unit (14).

29. the wrapping machine according to claim 2 is characterized in that: said wrapping machine comprises the folding component (71,71 ') of the bottom that is used for FOLD AND PACK; Said folding component is positioned at said removable horizontal welding and cutter unit (14; 14 ', 14 " upper reaches) and on two sides relative along diameter of the film (2) of tubular form, each of said folding component (71; 71 ') is connected at least one pair of vertical arm (68; 68 '), said vertical arm can pivot in case via suitable guiding and handling device (54,74) towards or away from said film (2) and therefore towards or form element (1) away from tubulose and move.

30. wrapping machine according to claim 29; It is characterized in that: said arm (68; 68 ') each at one end is connected to the bar (54) that can vertically move along guide properly spare (55) through first pivotal pin (67); And be connected to the plate (70,70 ') that supports said folding component (71,71 ') through second pivotal pin (69) at the other end.

31. the wrapping machine according to claim 29 is characterized in that: one of said arm (68,68 ') of every pair of pivotal arm is connected to the roller (72,72 ') of advancing along two lobe formula cams (61) of rotation through transverse bar (73,73 ').

32. wrapping machine according to claim 31; It is characterized in that: said two lobe formula cams (61) rotate through toothed wheel the (62); Said toothed the wheel via driving device (63) is connected to axle drive shaft (57); Said axle drive shaft has the connection disk that is provided with eccentric pin (64) (59) on it, and said eccentric pin is bonded on band slit attaching parts (65) inside that is formed on the said movable bar (54).

33. the wrapping machine according to claim 30 is characterized in that: be used for the bar (11) of vertical welding film and be in tubulose formation element (1) in-to-in tubulose reaction member (53) being connected to said movable bar (54).

34. the wrapping machine according to claim 11 is characterized in that: at least one (10 ') of said roller of presenting one of the said band (9 ') of film (2) is fixed to one (88), and said axle is connected to and is used to operate said band and as said band (9; The motor of counterweight 9 ') (87); Each of said band (9,9 ') is supported by plate (94,94 '); Said plate pivots with respect to a structure (95), and said structure then is hinged on the fixed sturcture pivotly.

35. wrapping machine according to claim 34; It is characterized in that: at least one roller (10 ') and the said axle (88) through said motor (87) operation that will be used at least one (9 ') of said band have bonding toothed wheel the (89) on it; Band or chain (90) are toothedly taken turns winding transmitting motion to second toothed wheel the (91) that is bonded on second (92) around said, on said second at least one roller (10 ') that is set to another band (9) of presenting film (2).

36. the wrapping machine according to claim 23 is characterized in that: guide removable horizontal welding and cutter unit (14,14 '; 14 " said cam rail (47)) comprise interchangeable and have different length effective horizontal welding part (A1, A2, A3; work weld A4) (147a; 147b, 147c, 147d).

37. wrapping machine according to claim 1; It is characterized in that: said wrapping machine comprises two unit (114) that are used for horizontal welding and cutting film (2), and these two horizontal weldings and cutter unit are arranged opposite to each other and are designed to welding and cutting film (2) when being positioned at the bar at the upper reaches (22) to carry out vertical welding.

38. wrapping machine according to claim 1; It is characterized in that: said wrapping machine comprise be used for the film of treating welding (2) is clamped in place many to movable fixture (155); Said movable fixture (155) is provided with the opening (154) of at least one element (80,80 ') that is used to receive horizontal welding head (151) and be used for transverse cuts film (2).

39. wrapping machine according to claim 40; It is characterized in that: be used for film (2) is clamped said movable fixture (155) in place plate (156) support through being designed to advance along closed ring track (162), the movable fixture (158) that is used to drive said plate (156) is provided with along said track (162).

40. wrapping machine according to claim 41; It is characterized in that: said wrapping machine comprises supporting construction; Each sidewall (160) in said supporting construction is gone up the track (162) of locating two closed rings and symmetric arrangement, supports each part of at least one said track in edge (162) of the said plate (156) that is used for the device (155) that film (2) clamping is in place and advances.

41. wrapping machine according to claim 1; It is characterized in that: said wrapping machine comprises the distributing box (169) that is used to distribute discrete material at the upper reaches that tubulose forms element (1); Said distributing box has at least one pair of chamber (172; 172 '), said chamber is designed to alternately said tubulose to be formed element (1) and supplies said discrete material (173).

42. wrapping machine according to claim 1; It is characterized in that: said wrapping machine comprises removable baffle plate (182a-c; 183a-c); Said baffle plate is designed to side along discrete material (173) from the passage (180) that wherein passes through and stretches into tubulose and form the element (1) or from tubulose and form element (1) withdrawal, can limit the ladder of discrete material in said passage (180) in-to-in drop height thereby form.