EP3156340A1 - Procede et dispositif destines a la fabrication d'une unite d'emballage - Google Patents

Procede et dispositif destines a la fabrication d'une unite d'emballage Download PDF

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Publication number
EP3156340A1
EP3156340A1 EP15190134.5A EP15190134A EP3156340A1 EP 3156340 A1 EP3156340 A1 EP 3156340A1 EP 15190134 A EP15190134 A EP 15190134A EP 3156340 A1 EP3156340 A1 EP 3156340A1
Authority
EP
European Patent Office
Prior art keywords
transverse
film tube
welding
welding jaw
film
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.)
Granted
Application number
EP15190134.5A
Other languages
German (de)
English (en)
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EP3156340B1 (fr
Inventor
Hans Knops
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teepak Spezialmaschinen GmbH and Co KG
Original Assignee
Teepak Spezialmaschinen GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teepak Spezialmaschinen GmbH and Co KG filed Critical Teepak Spezialmaschinen GmbH and Co KG
Priority to PT151901345T priority Critical patent/PT3156340T/pt
Priority to ES15190134.5T priority patent/ES2656220T3/es
Priority to EP15190134.5A priority patent/EP3156340B1/fr
Publication of EP3156340A1 publication Critical patent/EP3156340A1/fr
Application granted granted Critical
Publication of EP3156340B1 publication Critical patent/EP3156340B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices

Definitions

  • the following invention relates to an apparatus and a method for producing a packaging unit, in which a film web is formed by a longitudinal welding device to form a circumferentially closed film tube. This is transversely welded to form a leading transverse weld with a first transverse welding jaw. The one-sided sealed in this way film tube is filled with the goods to be packaged and then welded to form a trailing transverse weld with a second transverse jaw. Thereafter, the material is sealed in a film tube section which is closed by the two transverse welds in its longitudinal direction.
  • Such a method is commonly known as a form-fill-seal (FFS) method.
  • FFS form-fill-seal
  • the leading transverse weld of a subsequent packaging unit is usually created simultaneously with the trailing transverse weld of the packaging unit produced immediately in time, and the sheet material is separated between these two transverse welds in order to separate the packaging unit from the fed endless sheet material.
  • transverse welding jaws are movable transversely to the longitudinal extension of the film web in order to provide them with the leading or trailing transverse weld seams.
  • methods are also known in which the transverse welding jaws are entrained with the speed of the continuously conveyed film tube.
  • the two transverse welding jaws move synchronously with the speed of the film material in the feeding direction of the film webs are moved after forming the welds in a direction transverse to the longitudinal extent of the film webs to release the film freely and then against the direction of movement of the film web to its original position returned to provide the next length of the film tube with a trailing transverse weld, at the same time to close the adjoining film tube with the leading transverse weld and at the same time to separate the film material between the thus prepared leading and trailing transverse weld.
  • the material is usually introduced into the film tube by a hollow form shoulder forming the film tube from a flat film after the leading transverse weld seam has been formed.
  • the present invention seeks to improve the method mentioned at the outset.
  • the present invention intends, in particular, to specify an FFS method by means of which the packaging material can be compactly sealed in the film tube section which is transversely welded at each end.
  • the first transverse welding jaw is moved counter to the conveying direction of the present film web in the longitudinal direction of the film tube during the formation of the leading transverse weld seam. Accordingly, the first transverse welding jaw moves not only perpendicular to the longitudinal extension of the film tube, as is usual in welding. Rather, there is a controlled relative movement between the first transverse welding jaw and the film tube opposite to the conveying direction of the film web. The forming the weld seam surface elements of the film web are accordingly moved in the direction of a good receiving or surrounding hose section.
  • the gut-receiving hose or length section is a length of the film tube, which receives the respective good in the finished packaging unit.
  • the gut-receiving tube section in the sense of the present application is not necessarily separated from the endless supplied film tube, filled with good and / or closed at the trailing end.
  • the relative movement according to the invention By virtue of the relative movement according to the invention, the material introduced into the film tube and to be compacted is sealed compactly in the welded-on film tube section.
  • the relative movement of the first transverse welding jaw counter to the conveying direction of the film web and in the longitudinal direction of the same causes not only any arbitrary weld seam is formed, but also that aligned from the weld in the direction of the side walls of the packaging unit end wall portions aligned in a predetermined manner are, preferably at right angles to the side walls which extend in the conveying direction.
  • Such a preferred orientation of the end wall sections is achieved in particular when the first transverse welding jaw is moved by half the width in the longitudinal direction and counter to the conveying direction of the film web, while simultaneously stopping the transport of the film web. Since usually two transverse welding jaws are applied on opposite sides against the film tube, symmetrically moving the mutual welding jaws in this direction and by that amount will cause the weld to stretch in the widthwise direction, i.e. in the direction of the width. is arranged transversely to the longitudinal extent of the film tube in the middle at right-angled orientation of the end wall portions relative to the side walls.
  • the movements of the method according to the invention of the welding jaws relative to the film tube are relative movements.
  • the welding jaw can be stationary for this purpose and the film tube can be moved or the film tube can be stationary while the welding jaw is being moved.
  • both the film tube and the welding jaw can be moved during the formation of the leading and / or trailing transverse weld.
  • this film tube section is moved during formation of the trailing transverse weld against the conveying direction of the film, in such a way that the film tube section of the approximates second welding jaw.
  • the formation of the trailing transverse weld is thus under impact of the frontal wall portions relative to the side walls of the hose section, which promotes a compressed recording of the goods in the hose section.
  • the hose section is moved in the longitudinal direction of the film tube counter to the conveying direction thereof.
  • the second transverse welding jaw is preferably moved by half the width of the film tube section against the conveying direction and in the longitudinal direction of the film tube relative to the film tube section to a possible rectangular orientation of the frontal wall sections immediately adjacent to the trailing transverse weld to the side walls to reach.
  • the film tube is usually moved by a propulsion device in the direction of the first welding jaw.
  • the first transverse welding jaw can be provided stationary for this purpose.
  • the second transverse welding jaw is preferably moved parallel to the longitudinal extent of the film material like the first transverse welding jaw.
  • the first and second transverse welding jaws are coupled together in a manner known per se, preferably with the interposition of a separating device provided between the first and second transverse welding jaws, in order to separate a double-sided sealed film tube section from the continuous continuous material.
  • a separating device can be formed, for example, by a knife or else by an ultrasonic cutting device which effects the separation.
  • the separation is essentially thermal.
  • the material is moved together with the film tube section by a distance that is twice as large as the path of the second transverse welding jaw parallel to the longitudinal extent of the film tube during welding of the trailing transverse weld.
  • This movement is the movement of the second transverse welding jaw and thus also the first transverse welding jaw coupled thereto in the direction of the goods.
  • the material should be attached to the leading end of the film tube section to be welded, particularly to form a bottom extending transversely to the longitudinal extent of the sheeting containing film tube section with to double Be supplied, so that this film tube section not only tracked the moving welding jaws, but also moves in the direction of the second transverse welding jaw and thus against the also moving against the feed direction of the tubing first transverse welding jaw is formed.
  • the gut receiving film tube portion is moved relative to the first and second transverse welding jaw and this in the same direction, but by half the absolute amount in the longitudinal direction of the already closed on one side film tube.
  • the film tube is not transported when forming the transverse weld.
  • the transverse welding jaws are preferably reversibly moved and are particularly preferably mounted pivotably, so that the welding jaws from a starting position, in which the two opposite first transverse welding jaws for forming the leading transverse weld and the opposite second transverse welding jaws for forming the trailing transverse weld between them a space leave free, which allows the passage of the film tube, pivoted inwards and can be simultaneously moved against the conveying direction of the film tube.
  • the welding jaws are driven in the opposite direction, usually pivoted to be brought back to the starting position.
  • the development according to claim 5 results in that the first cross-welding jaw already touches the material to be sealed by the leading transverse weld seam when it is being applied to the film tube, which later has to form the transverse weld seam.
  • This section of material of the film tube is gripped accordingly accordingly.
  • the opposing surfaces of the film tube, which form the transverse weld later, are accordingly synchronously moved towards each other from both sides, without resulting in a relative sliding movement between the film material and the transverse welding jaw, and that until the film material between the opposite first transverse welding jaws or second transverse welding jaws welded in the end position to form the transverse weld has been.
  • the second transverse welding jaw from the application to the film tube until the completion of the trailing transverse weld in the direction of the material without a relative movement between the second transverse welding jaw and the film material takes place.
  • the aforementioned cyclical movement of the first and / or second transverse welding jaw on a circular path segment represents a preferred constructive embodiment, which ensures the desired relative movement in the longitudinal direction on the one hand as well as a slipping as possible slide the film web until the production of the weld.
  • This movement is also a directed to the central longitudinal axis of the film tube movement.
  • opposite regions of the film tube are to be touched once by the transverse weld seam and then moved inwards in the direction of the central longitudinal axis of the film tube and welded there.
  • Slippage of film material between the first and the second transverse welding jaw is to be prevented.
  • the transverse welding jaws also cause the bottom to be shaped against the product to be packaged. This is particularly preferable when the material is not bulk material but discrete units such as a plurality of teabags stacked against each other or the like, which basically have a rectangular, flat shape.
  • side folding elements engage on opposite sides of the film tube, which in each case enclose on the opposite sides of the film tube between them the first and the second welding jaws.
  • at least two isfaltfinger each provided on opposite sides of the film tube, the engagement direction substantially corresponds to the extension direction of the welding jaws or the weld. These two isfaltfinger are spaced apart in the longitudinal direction of the film tube, in such a way that the two first and second welding jaws between the two isfaltfinger can be arranged.
  • the leading transverse weld seam is first formed.
  • the material is usually introduced into the film tube section until the material against the bottom formed by the leading transverse weld seam now end-time closed hose rests.
  • the side folding elements initially engage at the level of the central longitudinal axis of the hose and strike the film material inward.
  • corresponding side folding elements each having two side folding fingers, are brought into contact with opposing surfaces of the film tube, which extend substantially perpendicular to those surfaces on which the transverse weld seams are formed, in order to strike the tubular film material symmetrically.
  • the transverse welding jaws are brought into action simultaneously, so that at the same time the film is wrapped and pressed by the transverse welding jaws opposite side surfaces inwards and finally applied against each other and welded.
  • the film tube section is wound up at least in a leading region to a substantially rectangular cross-section profile by suction segments, so that the tube longitudinally closed by the longitudinal welding device a predetermined shape is impressed. It is sufficient to provide opposite suction segments, which suck and hold the film material on sidewall portions of the outer periphery. Between these suction segments, the film material extends freely.
  • the leading region is usually at least in this phase of the process, such an area which is provided in the conveying direction behind the transverse welding jaws.
  • the leading portion of the film tube section is usually still a part of the endlessly supplied film tube, but which is already closed with the leading transverse weld, preferably filled with the good.
  • the material can be introduced into the film tube section before the suction segments reach the action. Because usually the product to be packaged is inserted through the forming tube in the film tube section, and that at a relatively high speed. The material usually forces air into the closed end of the film tube section and thereby expands it, so that the material can be easily introduced into the film tube section.
  • the suction segments it is usually ensured that the cross-section of the packaging drawn up by the latter provides a substantially cylindrical receptacle for the product to be packaged.
  • About the suction segments is usually imparted a movement, which the receiving the material film tube portion in the direction of the second transverse welding jaw and moved in the longitudinal direction of the film tube.
  • the suction segments are preferably attached to holding arms which are provided opposite one another and preferably pivotable, which are connected to a common support.
  • the support is usually movable relative to the transverse welding jaws, preferably by twice the distance traveled by the transverse welding jaws in the longitudinal direction of the film tube during the production of the leading or trailing transverse weld seam.
  • the supports can also be connected to the eccentric drive to the welding jaws. In this case, couples a lever arm, which has twice the length of the lever arm for the transverse welding jaws, the support in such a way with the eccentric drive of the transverse welding jaws, that the support is movable in the longitudinal direction of the film tube, but not in the transverse direction.
  • the lever has accordingly a driver for conveying the movement in the longitudinal direction, wherein the support is held in the transverse direction by suitable guides fixed. In this way, the movement of the material surrounding the film tube section on the one hand and the movement of the transverse welding jaws on the other hand can be realized simply constructive.
  • the material receiving the film tube section is specifically formed at its trailing end in the context of training the trailing transverse weld.
  • folding edges are realized to urge the opposing side surfaces of the film tube portion to each other.
  • the folding edges accordingly hit the film material on the opposite side surfaces and in a plane parallel to the extension of the trailing transverse weld. Accordingly, defined edges result between the side walls and the front wall sections, which open into the trailing transverse weld seam.
  • the material is usually inserted against the force action direction of earth gravity in the tube section.
  • the tube is aligned with its central longitudinal axis parallel to the force action direction of the earth's gravity. Rather, it is sufficient a certain inclination of this axis relative to the direction of force of gravity, so that the good, for example, rests against a punch that introduces the good in the end-welded film tube section before it is separated from the film continuous material.
  • This procedure also prevents the leading seam from passing through the film tube incident material is overly mechanically stressed as long as the film material is still warm and not fully loadable due to the welding process.
  • a plurality of items to be packaged are stacked against the holding force of a movable holding punch in a carriage located in a loading position. After stacking a good forming number of items in the carriage this is moved to a Ausschiebeposition in which the good is inserted from a feed punch in the film tube section.
  • the movement is usually carried out in the context of a translational movement.
  • the peculiarity of the preferred method is that the carriage is moved from the loading position to the Ausschiebeposition and / or from the Ausschiebeposition to the loading position transversely to the direction of movement of the holding punch and / or feed punch, while the holding punch and / or the feed punch still in engages the carriage.
  • the stamps are usually movable only in the longitudinal direction, but otherwise provided in a fixed location.
  • the carriage accordingly has a longitudinal slot through which the at least one punch can be moved radially relative to the carriage to move the carriage during the engagement of the corresponding punch from one to the other position.
  • the present invention further provides an apparatus for producing a packaging unit of the type mentioned, in particular a device for producing packaging units with teabags, in which a plurality of tea bags stacked on top of each other form the product in the sense of the present invention.
  • the device is a form-fill-seal device having a forming shoulder for forming a circumferentially closed tube from a supplied film web and a longitudinal welding device associated with the forming shoulder for forming the circumferentially closed film tube.
  • first and second welding jaws are provided for forming the leading or trailing transverse weld seam.
  • the device according to the invention is designed so that it can perform the previously discussed kinematics, ie the first transverse welding jaw in the longitudinal direction of the film tube during welding of the leading transverse weld moves, in the direction of a film tube portion which is adapted to receive the goods. Furthermore, the invention provides a first means for moving the first transverse welding jaw in the longitudinal direction and in the direction of the longitudinal welding device when welding the leading transverse weld seam. The first means accordingly allow the relative movement described with reference to claim 1 of the present application.
  • the device according to the invention has second means, which are specified in claim 12 and enable the preferred method of claim 2.
  • the second means are preferably formed by the aforementioned suction segments, which are coupled to the previously discussed support preferably purely translationally driven by eccentric to the cyclical movement of the first and second transverse welding jaw.
  • the suction segments preferably form an element for gripping and moving the product surrounding the hose section according to the embodiment of claim 14.
  • the preferred development of the device according to the invention according to claim 15 specifies a side folding element, the effects of which have already been explained above with reference to claim 7.
  • the positive coupling prevents misalignment of the sofaltimplantations and leads this at any time the movement of the transverse welding jaws in the longitudinal direction.
  • the coupling is preferably such that the side folding elements at least as far as and as long as they interact directly with the material of the film tube, lie on the central longitudinal axis of the film tube, but at least not be moved transversely to the direction of advance of the film tube.
  • the side folding elements are accordingly preferably forcibly coupled with the transverse welding jaws in the longitudinal direction of the film tube, but in a direction perpendicular thereto, preferably stationary or at least approximately stationary.
  • the Figure 1A and 2a show a top perspective and bottom views of an apparatus for carrying out the method for producing a packaging unit with a rectangular forming tube 2, which has a mating surface to one only in the Figures 1A and 2A shown longitudinal welding device 4 forms and a formed over a not shown forming shoulder to a circumferential tube shaped film tube 6 with its outer peripheral surface.
  • longitudinal welding device 4 forms and a formed over a not shown forming shoulder to a circumferential tube shaped film tube 6 with its outer peripheral surface.
  • a plurality of teabags 8 which are in the temporally rear sequences of FIGS. 1 and 2 are shown.
  • the forming tube 2 is associated with two conveyor belts 10 which engage on opposite first side walls 12 through the molded tube 2 to form a rectangular cross-section tubular film 6.
  • each welding jaw assembly 14 is provided, each having opposing first transverse welding jaws 16 and second transverse welding jaws 18 with a cutting device provided therebetween.
  • Each welding jaw assembly 14 is mounted on a support arm 20 which is secured via hinges G on reserved pivoted drive pulleys 22. All drive pulleys 22 are forcibly synchronized with each other on a base 23 and positively synchronized with each other via a designated hinge rod assembly 25.
  • Reference numeral 24 denotes a side folding member. Opposite to the second side walls 13, which extend at right angles to the first side walls 12, a side folding element 24 is provided in each case. Each side folding element 24 has two isfaltfinger which are provided in the conveying direction F one behind the other, wherein the front side folding finger 26 and the rear sofaltfinger 28 is characterized in the conveying direction.
  • these side folding elements 24 are positively synchronized to each other via a lever arm assembly 29 with respect to your feed movement.
  • the sofaltium 24 are each secured to the lever arms 30 of the lever arm assembly 29, which are each coupled via an articulated arm 32 with a holder 34, which in turn is connected to the holder arms 20.
  • the articulated arms 32 are pivotally connected to the associated lever arm 30 about a common point relative to the holder 34 via a first hinge 35 and in each case by way of a second articulated joint 36.
  • Both lever arms 30 are connected via a third joint 37 to a support 38 which is fixedly connected to the holder 34 and is supported on the base 23 via a hinge arrangement 39 provided with reference numerals in FIGS. 2A and 2B.
  • the arms 30 and 32 and the bearing 38 form the lever arm assembly 29.
  • the hinge assembly 39 has for this purpose a first lever arm 39a, which is directly connected to the base 23 and at the free end a second support arm 39b is pivotally mounted, the other end is pivotally connected to a third support arm 39c, which in turn carries the support 38.
  • the support 38 is fixed in a direction perpendicular to the conveying direction F, in a direction parallel thereto, however, movably mounted together with the oscillating movement of the holding arm 20.
  • the individual teabags 8 are stacked against the force of the holding punch 44 in the carriage 40. It should be below the representation of the carriage 40 in the Figures 3A-3F a tea bag making machine is provided which pushes individually made tea bags 8 into the carriage 40.
  • the loading punch 48 engages the carriage 40 after the necessary number of tea bags 8 in the carriage 40 has been introduced by a tea bag manufacturing machine against the force of the holding punch 44 and after the carriage 40 has been moved from the loading position B to the Ausschiebeposition A. So is in FIG. 3E the feed punch 48 is shown with its front end within the carriage 40.
  • the tea bags 8 have already partially leave the carriage 40 and are partially received in the forming tube 2, which for reasons of a simpler representation in the Figures 3E-3F taken away.
  • the carriage 40 has a longitudinal slot 50 passing through the housing of the carriage 40 in the longitudinal direction of the punches 44, 48.
  • This longitudinal slot 50 offers the possibility of moving the carriage 40 from the loading position B to the pushing-out position A, while the holding punch 40 has already been displaced in order to compress a small number of tea bags in the direction of the tea-bag production machine (cf. FIGS. 3E, 3F; 4E, 4F ).
  • the carriage 40 is designed such that it can be translationally moved between the two positions A, B, while the feed punch 48 engages in the carriage 40 (see sequence FIGS. 3E, 3F; FIGS. 4E, 4F )
  • the longitudinal slot 50 is dimensioned so that at least one push rod of the loading punch 48 may be received within the carriage 40, while said translational movement of the carriage 40 is made.
  • the film tube 6 is formed in a manner known per se from a flat foil material and via the not shown forming shoulder. This is welded by the longitudinal welding device 4 in its longitudinal extent. This results in the circumferentially closed film tube 6.
  • the film tube 6 is moved by the conveyor belts 10 in the conveying direction F. It is assumed that, in a previous step, first the film tube 6 has been provided with a leading transverse weld seam identified by reference numeral 52 (cf. FIG. 1 B) , A length section 56 suitable for receiving the predetermined number of tea bags (hereinafter "package 54") is then formed and pushed out beyond the welding jaw order 14 in the conveying direction F (cf. Figures 1B . C ; 2A .
  • FIG. 2A an initial position at which the welding jaw assemblies 14 and the side folding members 24 are maximally removed from the film tube 6, whereas
  • Figure 1E . 2E illustrates the end position, in which the welding jaw assemblies 14 have created with the inclusion of the film material against each other and the sofalticide 24 immediately adjacent to the welding jaw assembly 14 maximum penetrated into the film tube 6.
  • the package 54 is now in the end closed by the leading transverse weld 52 hose section 56 (see. FIG. 1E) for receiving just that pack 54 inserted through the loading punch 58. While the rectangular end of the feed tube 48 is still at the level of seefaltimplantations 24, the two 39faltfinger 26, 28 already contact the second side walls 13.
  • the front end of the feed punch 48 has one for receiving the sofaltfinger 26, 28 appropriately trained funnel shape.
  • the arranged below the second side walls 13 portions of the feed punch 48 are retracted at the height of the central longitudinal axis and each inwardly. After the introduction of the package 54, the conveyor belts 10 are stopped. There is no more sheet material is pushed over the forming tube 2 in the direction of the welding jaw assemblies 14.
  • the two sealing jaw assemblies 14 are moved towards each other. This movement takes place through the drive disks 22, so that the welding jaw assemblies 14 are not only delivered at right angles to the central longitudinal axis L in the direction of the film tube 6, but also with a speed component parallel to the conveying direction F against this conveying direction F are moved.
  • the welding jaw assemblies 14 Due to the forced coupling of the sofaltimplantation 24 by the push rod 34, the welding jaw assemblies 14 are moved over the support arms 20, the sofaltimplantation 24 at the same speed relative to the central longitudinal axis L and transversely to the entire movement.
  • the welding jaw assemblies 14 and the side folding members 24 are thereafter provided at the same height relative to each other, however, move relative to the forming tube 2 with the eccentric movement of the drive pulleys 22.
  • the cutter 19 provided between the first and second welding jaws 16, 18 thereafter separates one denoted by reference numeral 64 and in Figure 1F shown packaging unit of the supplied endless film tube 6. This separation takes place during welding in the Figure 1E shown position.
  • the packaging unit 64 thus isolated may be withdrawn from the device. This conveying out of the packaging unit 64 filled with the pack 54, which constitutes a product in the sense of the present invention, will be described in particular with reference to FIGS FIGS. 1 . 2 B to 2E to be discribed.
  • the welding jaw assemblies 14 are now moved in the conveying direction F and moved further apart.
  • the side folding 24 will be in your Figures 1A and 2A returned starting position shown.
  • the film tube material 6 is conveyed in order to prepare the filling of a further longitudinal section 56 with material 54.
  • the method described above is particularly suitable for enclosing, in the present case, a package 54 of tea bags 8 in a compact manner in a film tube 6 closed by means of FFS technology.
  • the loading punch 58 also causes a certain compression of the packing 54 within the longitudinal section 56 closed on one side.
  • the introduction of the side folding elements 24 even before the detachment of the embroidery punch 48 from the packing 54 ensures that the packing is compressed in this Mold introduced package 54 may be held substantially in the compressed form and then sealed in the longitudinal section 56 by welding.
  • FIGS. 1 and 2 can be seen at the base 23 fixed support arms 66 which are mounted relative to the base 23 pivotally.
  • the free end of the respective holding arm 66 is located near the welding jaw assembly 14 and on the side facing away from the forming tube 2.
  • the support arms 66 are spaced apart so that they can receive the finished packaging unit 64 between them.
  • the retaining arms 66 are pivotably mounted on a support 67.
  • This support 67 is movable in the conveying direction F, but not movably mounted in a direction transverse thereto and connected via a lever arm with at least one of the drive pulleys 22, which is twice as long as the lever arm between the center of the drive pulley 22 and the hinge point G. Movement of the welding jaw assembly 14 against the conveying direction F accordingly leads to a movement that is twice as large in the direction of the directional arrow Z counter to the conveying direction F.
  • the support 67 is moved with the support arms 66 hinged thereto when moving the transverse welding jaw assemblies 14 in the direction of these transverse welding jaw assemblies 14 and the forming tube 2 in the conveying direction F. They take with it filled with the Good 54 length portion 56 of the film tube 6. In the meantime, however, this tube section 56 is clamped between the holding arms 66, which is illustrated in FIGS. 7A to 7C.
  • FIGS. 1 . 2A the retaining arms 66 are pivoted apart.
  • the suction segments identified by reference numeral 68 are provided in the form of deformable absorbent pads, which are adapted to cooperate with the tube section 56 filled with material 54 projecting above the welding jaw assembly 14 in order to open this packaging section in a rectangular manner.
  • For the suction segments 68 must rest only on opposite side surfaces.
  • Fig. 1 . 2 C are the holding arms 66 pivoted toward each other.
  • the retaining arms 66 at their front free ends with reference numeral 70 marked folding edges, which project beyond the provided with the Saugelsegmenten 68 surfaces of the support arms 66 inwardly and towards each other.
  • reference numeral 70 marked folding edges
  • these folding edges 70 cause the foil material to be deflected at the trailing end of the reference numeral 56 marked hose section.
  • the trailing end of the side walls of the packaging unit 64 to be produced in the conveying direction F is forced inward. This results in a defined edge between the side walls and the front wall sections containing the trailing transverse weld 62.
  • FIGS. 1 . 2C to E how the particular FIGS. 1 . 2C to E can be seen, then filled with Good 54 length portion 56 is brought closer to them due to the relative movement of the support 57 in the direction of the welding jaw assembly 14.
  • the path between the maximum distance of the post 57 from the cross weld jaw assembly 14 Figure 1A to the minimum distance after Figure 1E At the same time by the movement of the drive pulleys, the welding jaw assembly 14 makes a path about half the width in the direction of the forming tube 2, there is a relative path between the Weld jaw assembly 14 and the support 67 with the support arms 66 of half the width.
  • the material of the film tube 6 is taken inwardly relative to the folding edges 70, so that the trailing transverse weld 62 basically protrudes from the last teabag of the package 54 in the conveying direction F. This ensures a compact enclosure of the package 54 in the packaging unit 64.
  • the support 67 When opening the welding jaw assembly 14, the support 67 is also moved in the conveying direction F. It takes the packaging unit 64 with it and removes it from the welding jaw assembly 14. Finally, the holding arms 66 open. The suction segments 68 are deactivated, so that the finished packaging unit 64 can be dropped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP15190134.5A 2015-10-16 2015-10-16 Procede et dispositif destines a la fabrication d'une unite d'emballage Active EP3156340B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PT151901345T PT3156340T (pt) 2015-10-16 2015-10-16 Método e dispositivo de fabrico de uma unidade de embalagem
ES15190134.5T ES2656220T3 (es) 2015-10-16 2015-10-16 Procedimiento y dispositivo para fabricar una unidad de envasado
EP15190134.5A EP3156340B1 (fr) 2015-10-16 2015-10-16 Procede et dispositif destines a la fabrication d'une unite d'emballage

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113677507A (zh) * 2019-04-12 2021-11-19 克罗赛股份公司 焊接单元

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102111A (en) * 1976-06-01 1978-07-25 Fmc Corporation Wrapping machine
US20130014476A1 (en) * 2011-05-13 2013-01-17 Stork Brian R High speed vertical film wrapping and sealing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102111A (en) * 1976-06-01 1978-07-25 Fmc Corporation Wrapping machine
US20130014476A1 (en) * 2011-05-13 2013-01-17 Stork Brian R High speed vertical film wrapping and sealing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113677507A (zh) * 2019-04-12 2021-11-19 克罗赛股份公司 焊接单元

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PT3156340T (pt) 2018-02-23
EP3156340B1 (fr) 2017-12-13
ES2656220T3 (es) 2018-02-26

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