EP1925557B1 - Turning and sealing station for packaged goods of varying size and film packaging machine for packaged goods of varying size - Google Patents

Turning and sealing station for packaged goods of varying size and film packaging machine for packaged goods of varying size Download PDF

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Publication number
EP1925557B1
EP1925557B1 EP07022340A EP07022340A EP1925557B1 EP 1925557 B1 EP1925557 B1 EP 1925557B1 EP 07022340 A EP07022340 A EP 07022340A EP 07022340 A EP07022340 A EP 07022340A EP 1925557 B1 EP1925557 B1 EP 1925557B1
Authority
EP
European Patent Office
Prior art keywords
transport
welding
film
pieces
packaged goods
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.)
Not-in-force
Application number
EP07022340A
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German (de)
French (fr)
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EP1925557A1 (en
Inventor
Daniel Schäf
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.)
Beck Packautomaten GmbH and Co KG
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Beck Packautomaten GmbH and Co KG
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Application filed by Beck Packautomaten GmbH and Co KG filed Critical Beck Packautomaten GmbH and Co KG
Publication of EP1925557A1 publication Critical patent/EP1925557A1/en
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Publication of EP1925557B1 publication Critical patent/EP1925557B1/en
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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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/005—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for removing material by cutting
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/02—Arrangements to enable adjustments to be made while the machine is running
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/026—Enclosing successive articles, or quantities of material between opposed webs the webs forming a curtain

Definitions

  • the invention relates to a method and a device for welding off supernatants of film bags with respect to the transport direction predetermined width, the Packgut thoroughlye changing size included.
  • the invention further relates to a method for wrapping and welding of in particular flexible Packgut Swissen changing size or changing formats, such as textiles, and an apparatus for performing this method.
  • the invention has for its object to provide a method and an apparatus with which supernatants of plastic bags, which have based on the transport direction predetermined width, but contain packaged items of varying size, can be separated in a space-economical manner
  • the dimensions of the individual Packgut technicallye can be detected with appropriate sensors.
  • the acquired data is then converted into control signals for driving the longitudinal transport means and for actuating the first cross-cut welding and the final cross-cut welding.
  • the first cross-cutting welding as far as the separation process is concerned, only a central region detected and contiguous lateral edge strips exist.
  • the welds can also cover the entire width of the film webs.
  • the edge strips connect the individual wrapped Packgut scorede each other and can support the transport of Packgut scorede with appropriate drive and guide.
  • the lateral edge strips lying outside the longitudinal welding points are then separated from the foil bag and the waste portions are wound up.
  • the longitudinal separation welding entlag the longitudinal side of the Packgut technicallye can be carried out at the same time on the entire length of the film bag in standing film bags.
  • longitudinal welding takes place progressively along the longitudinal side of the items to be packaged in the case of moving foil bags, with stationary thermal separation welding knives being able to be used.
  • an adjustment of the transverse spacing of the means for longitudinal separation welding is dispensed with the variable width dimensions of the individual Packgut technicallye to achieve optimum packaging performance.
  • the packaged goods are welded in on all sides by welding the upper and lower film layers over the entire length of the packaged goods.
  • An insertion of the packaged goods on a lateral contact edge is to be assumed for the further sequence of the process. Automation of side-by-side insertion or transfer is possible with simple suitable means of delivery. The detection of the length and the height of the individual Packgut publishede can be done by means of suitable sensors, in particular contactless.
  • a half-film tube is made by rolling double-lying material from a roll of material, spreading the two layers and deflecting by 90 °, or that rolled flat film material from a roll of material and placed twice in a longitudinal folding station to a half-film tube is, with the individual Packgut technicallye are then inserted longitudinally in the half-film tube, wherein they are largely in contact with the connecting edge of the upper and lower film layer.
  • transverse cutting welding in front of the front end faces of the packaged goods in a first transport position or transverse cutting welding behind the rear end faces of the packaged goods at the same location in a second transport position, in particular for two successive packaged goods in a single operation.
  • the laterally separated projections, ie the waste portions are removed in the transport direction.
  • time or speed decoupling the further transport of the separated supernatant from the further transport of the wrapped Packgut technicallyes to prevent re-sticking of the film material at the separation point.
  • the individual laterally separated supernatants should be removed as exactly as possible in the longitudinal direction.
  • the inventive turning of the individual Packgut Swisse takes place after a lifting of the longitudinal transport means, wherein after turning takes place a Wiederabsenken on the longitudinal transport means.
  • the previously supernatant supernatant is preferably turned backwards.
  • the items to be packaged are individually transferred to a further transport position, in which they have passed through a second cross-cutting device exactly, wherein the supernatant is separated in a subsequent cross-cutting welding process over the entire width of the film bag.
  • the separated supernatants are discharged horizontally or downwards transversely to the transport direction.
  • At least the upper film layer be perforated before the all-round welding of the film bag for pressure equalization in the region of the initially lateral supernatant and the perforation are separated during final cross-cutting welding to separate the supernatant from the film bag.
  • excessive air pockets in the foil bag can be avoided during the first-time all-round welding, or the times can be reduced until the first-time all-round welding. Since the perforations are provided in the final supernatant to be welded off, the total packaging remaining after the final cross-cut welding is finally hermetically sealed.
  • Packaged goods of maximum width are also rotated in the turning station by 90 °, although in this case no first side or after turning backward supernatant is present, which would have to be separated. In that regard, the perforation is retained in the foil bag in these Packgut Swissen.
  • the essential features here are longitudinal separation welding devices in fixed positions, in particular in pairs at a fixed transverse distance from each other, if the Packgut thoroughlye retract in a four-side welding machine in a film curtain formed from two flat films, or a single longitudinal separation welding device at a fixed transverse distance to the contact edge, if the Packgutstükke at a form shoulder machine wrapped in a half-film tube.
  • longitudinal separation welding an off-center offset laterally internal system of Packgut publishede given at a longitudinal edge in the film bag, since the Packgut commonlye be used adjacent to a contact edge in the device.
  • Dispensing with adjusting means for constantly changing setting for the longitudinal separating devices on an alternating width of the individual Packgut Koreane simplifies the device significantly.
  • the lateral distance of the two-sided longitudinal separation welding devices from each other or the side distance of the individual longitudinal separation welding device from the opposite bearing rail for the Packgut technicallye is fixed in this case, so that the longitudinal separation welding can be done with simplified means and accelerated.
  • An outstanding feature of the device according to the invention lies in a turning station, in which the Packgut technicallye be moved from its unbalanced lateral position with respect to the foil bag in a rotated position by 90 °, in the previously lying supernatant now forward or preferably backward relative to the Packaged goods points.
  • the turning station preferably has a plurality of arranged in a grid in a plane transport rollers, which are in particular driven, wherein the rotating station has a liftable and gradually to each 90 ° rotatable lifting and rotating table, which comprises a plurality of arranged in a grid breakthroughs , which in two 90 ° from each other different rotational positions so on the Transport rollers are lowered, that they penetrate the openings with upper roller segments.
  • the transport rollers and the apertures are arranged in a square grid.
  • the lifting and rotary table is connected via a lifting and turning gear with cams with a single stepper motor.
  • the roles of the rotating station are divided into four jointly driven blocks, between which may lie a cross-shaped arrangement of suction in the lifting and rotating table, which are applied during lifting and turning with negative pressure to prevent slippage of the film bag due to inertial forces.
  • rollers of an exit roller conveyor can be gummed beginning with the second cross-cutting device to effectively stop a resting film bag when stopping so that the incoming Packgut Sharing slips forward due to inertial forces in the film bag, so that the determined by the final cross-cut welding bag length can be minimized.
  • FIG. 3 shows a separated supernatant discharge device in a first embodiment
  • FIG. 4 shows a separation device for separated supernatants in a second embodiment.
  • the apparatus clearly comprises a first machine unit 11, in the form of a packing station, which constitutes a so-called high packer, and a second machine unit 51, which comprises a turning station 55.
  • a machine frame 12 and a cover 13 are to be distinguished.
  • a sliding control panel 32 On the front of a sliding control panel 32 is shown.
  • the packaged goods are introduced into an insertion device 19 from the left and run through the entire device from left to right.
  • the insertion device 19 essentially comprises an inlet conveyor belt 18 and right and left guide rails 20, 21, wherein the right guide rail 20 serves as a support rail for all Packgut conductede.
  • the Packgut publishede can be brought into contact with the right guide rail 20 manually or with mechanical guiding means.
  • An investment line is designated A.
  • On the intake conveyor belt 18 follows an outlet conveyor belt 22, wherein the conveyor belts 18, 22 in successive Arrangement form a horizontal transport plane T.
  • the drive and guide means 26,27 for the lower film web and the upper film web cause the film webs are brought together in front of a first Quertrennsch directvortechnisch 28 in the transport plane T and are connected to each other in the first Quertrennsch directvortechnisch 28 before and behind each Packgut Swiss by cross-cutting.
  • the lower film web is guided between the inlet conveyor belt 18 and the outlet conveyor belt 22 up to the transport plane T, so that the lower film web comes to lie on the underside of the Packgut thoroughlye, while the upper film web over the front end, the top and the rear Face of the packaged goods lays.
  • the two weld seams are produced by sealing strips or upper punches arranged parallel to the cutting edge on the crosspiece, which can be lowered to a lower punch located slightly below the transport plane T, which is raised simultaneously over the transport plane T for welding and cutting.
  • a cutting tool 23 is laterally mounted on the inlet side, with which at each separation and welding operation, i. Each time the upper and lower film webs are welded together, an approximately 5 mm wide slot is created which penetrates the film webs. This slot later serves to vent the closed foil bag.
  • a horizontal with a vertical actuating cylinder adjustable ventilation plate 29 is arranged, which is covered on the bottom with foam and hangs before each cross-cutting on the respective Packgut Faculty to the upper film web to press this.
  • the displaced air can escape at the rear edge of the aforementioned belt loop, the lateral projections of which are already compressed in the region of the edge strips of closing and drive means.
  • the transverse distance of two longitudinal separation devices 24, 25 is predetermined and about the transverse distance the guide rails 20, 21 corresponds to each other.
  • the longitudinal separating welders 24, 25 preferably have fixed thermal cutting welding blades.
  • the upper film web and the lower film web are first combined for longitudinal split welding on both sides of the Packgut thoroughlye by the closing and drive means in a plane. This plane may be above the transport plane T, so that both parts of the lower film web and parts of the upper film web are used to form the lateral parts of a closed film bag.
  • the longitudinal separation welding devices 24, 25 are simultaneously with the longitudinal welding the separated side projections on both sides of the Packgutewede, wherein the individual orientation of the Packgut presentede, on the 6.3frollline A the individual Packgut proteins each rests on the right in the transport direction in an oversized foil bag inside.
  • the separated on both sides supernatants, which are continuously interconnected, are driven and wound on spools 30, 31, which are arranged on the front side of the machine frame 12.
  • the packaged items which are welded on all sides are then discharged from the machine unit 11 via the discharge conveyor belt 22 and transferred to the machine unit 51.
  • the machine unit 51 comprises an inlet roller conveyor 54, which adjoins the outlet conveyor belt 22 at a small distance in the same transport direction, a rotating station 55 and an outlet roller conveyor 56.
  • the rotary station 55 comprises a lifting and rotating table 57 with a lifting and turning gear 58 and drivable rollers 59, which are arranged in a square grid and each penetrate with an upper segment provided with punched-Hub- and turntable 57 in its rest position. At least the length of the individual Packgut Publishede is detected when entering the turning station 55 with non-contact sensor means.
  • the rollers 59 are stopped in the field of turning station 55 and raised the lifting and rotating table 57, so that the Packgut proteins rests on the openwork surface of the lifting and rotating table and lifted off the rollers. Thereafter, the lifting and rotating table is rotated by 90 °. The supernatant of the film bag, which previously lies on the left in the transport direction, is hereby rotated in the transport direction towards the rear relative to the packaged item. Subsequently, the lifting and rotating table 57 is lowered again and the rollers 59 in the area of the rotating station 55 are driven again so that the packaged product piece reaches the separately drivable outfeed roller track 56.
  • the outlet roller conveyor 56 is stopped and now separated in the transport direction supernatant in the cross-cutting device 60 from the film bag.
  • the cross-cutting device 60 also has a height-adjustable crosspiece on which a separating welding knife or a heatable upper punch is arranged. which can be lowered by means of the cross-beam to a slightly below the transport plane T lower punch.
  • a device for discharging the now completely separated from the tubular bag waste portion is a device for discharging the now completely separated from the tubular bag waste portion.
  • the discharge device fits within the roller conveyor 56 in a narrow area on the inlet side of the cross-cutting device 60.
  • the inlet roller conveyor 54 may also be used consisting of a plurality of parallel endless belts infeed conveyor belt.
  • the package item which is tightly welded on all sides is discharged from the machine unit 51 by means of the outlet roller conveyor 26.
  • an arrangement 71 of several superimposed horizontally arranged light barriers is set up in the inlet area, with which the height of the incoming Packgut thoroughlye can be detected. Due to the height determined, the height of the cross-beam of the cross-cutting device 28 is controlled so that the Packgut thoroughlye the cross-cutting device 28 can pass through trouble-free.
  • a vertically arranged light barrier 72 is provided, which controls after determining the passage of a Packgut thoroughlyes the outlet conveyor belt 26 with a certain amount of wake, that this is stopped by the Packgut proteins immediately after passing the Quertrennsch spavorraum 28.
  • the required trailing of the upper film web is controlled by the above-mentioned detected height.
  • a vertically oriented light barrier 73 which immediately stops the inlet conveyor belt 18 upon detection of an incoming Packgut publishedes and thus the Nachschieben more Packgut publishede prevents, provided that it must be noted that the inlet roller conveyor 54 of the machine unit 51 is stationary. The latter may be the case when the turning station 55 is occupied by a Packgut publicly.
  • a further vertically oriented light barrier 74 is arranged, which stops the inlet roller conveyor 54 after the entry of a Packgut publishedes, if it is certain that there is still a Packgut portrait on the rotating station 55. Only when such Packgut proteins has left the turning station 55, the inlet roller conveyor 54 is driven again.
  • the output roller conveyor 56 with a certain caster controls after determining the passage of a Packgut thoroughlyes that this is stopped immediately after passing the Quertrennsch spavortechnisch 60 through the Packgut media so that the Querabsch experienceen of rear-facing supernatant can be done very close to Packgut proteins. This air can escape through the previously mentioned slot, which ultimately in the separated supernatant remains.
  • the lifting and rotating table 57 has rounded corners 62 to keep the indicated by a circle pivot range K low.
  • the lifting function as well as the twisting is performed by a single stepping motor 63 with a cam-controlled lifting and turning gear 64.
  • Below the lifting and rotating table 57 is an arrangement of rollers 59, which consist of four square blocks, each block having a plurality of rollers on a common shaft, wherein an equally large plurality of waves in each block is parallel to each other.
  • the rollers 59 In the lowest position of the lifting and rotating table 57, the rollers 59 penetrate with their upper segments, the apertures 61, while the openwork surface 65 of the lifting and rotating table thereof in a raised position above the upper periphery of the rollers 59.
  • an overlying Packgut Western be lifted from the rollers 59, so that it can be rotated freely with the lifting and rotating table.
  • the lifting and turntable 57 can be lowered again, the rollers 59 again engage in the square grid of the openings 61 in the lifting and turntable, so that an overlying Packgut Partners after turning by 90 ° again by means of the drivable Rolls 59 can be moved in the unmodified transport direction.
  • Between said blocks of rollers 59 are in a cross-shaped arrangement, a plurality of suction openings 65 which are acted upon by vacuum channels 66 exclusively when driving and rotating the lifting and rotating table 57 to prevent slipping of the film bag.
  • FIG. 3 a discharge device for separated overhangs in a known per se embodiment is shown, which is arranged in front of the second cross-cutting device within the outlet roller conveyor.
  • the discharge device 81 is in Viewed transport direction considered and includes a support assembly 82 to which a parallelogram 83 with actuating cylinder 84, a set of rollers 85 is arranged liftably. This is shown in the figure in the lowest position in which the rollers rest on the upper run 87 of an endless belt arrangement 86.
  • the endless belt 88 is in this case driven by a drive motor 89, while the rollers of the roller set 85 run free and are taken along by the endless belt.
  • a cutting edge of a separated overhang is clamped when lowering the parallelogram 83 between roller assembly 85 and endless belt 88 and discharged horizontally and transversely to the transport direction from the general transport path upon actuation of the drive motor 89.
  • a deflecting arrangement designated generally by 90 deflects the separated projection laterally from the transport path downwards.
  • FIG. 4 a discharge device 91 is shown in a novel second embodiment, wherein the representation represents a vertical longitudinal section in the transport direction in the region of the second cross-cutting device.
  • the transport plane T and rollers 92 of the outfeed roller conveyor 56 are also recognizable, as are parts of the second transverse cutting device, namely a welding punch 93 and a lower punch 94.
  • a depressing strip 95 which can be actuated independently of the welding punch 93 is deflected downwards during the separating welding or immediately after the separating welding, where it can be clamped between a fixed drive roller 96 and a pivotable roller 97 . After retraction of the strip 95 and when driving the drive roller 96, the supernatant can be discharged perpendicular to the transport direction down from the transport path.
  • a further roller 98 of the outlet roller conveyor 56 can be seen, which in particular, as mentioned earlier, can have a rubberized surface, as well as the further rollers adjoining to the right.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Basic Packing Technique (AREA)
  • Package Closures (AREA)

Abstract

A first machine unit (FMU) (11) takes the form of a packing station with a vertical packer. A second machine unit (51) has a rotating station. On the FMU there is a machine frame (12) and a covering hood (13). On the front side there is a moving control desk (32). Two mounting devices (14,15) each carry foil reserve rolls (16,17), from each of which strips of flat foil material are unwound. Independent claims are also included for the following: (1) A device for cutting off projecting ends on foil bags by a torch with pieces of packaging of different sizes in respect of the direction of conveying a preset width; (2) A device for enveloping and welding in pieces of packaging of different sizes in foil material.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Abschweißen von Überständen an Folienbeuteln mit auf die Transportrichtung bezogen vorgegebener Breite, die Packgutstücke wechselnder Große enthalten.The invention relates to a method and a device for welding off supernatants of film bags with respect to the transport direction predetermined width, the Packgutstücke changing size included.

Die Erfindung betrifft weiterhin ein Verfahren zum Einhüllen und Einschweißen von insbesondere flexiblen Packgutstücken wechselnder Größe bzw. wechselnder Formate, beispielsweise Textilien, sowie eine Vorrichtung zur Durchführung dieses Verfahrens.The invention further relates to a method for wrapping and welding of in particular flexible Packgutstücken changing size or changing formats, such as textiles, and an apparatus for performing this method.

Aus der DE 196 21 205 C2 ist eine Vorrichtung bekannt, mit der Packgutstücke schlauchförmig von einer Folienbahn umgeben werden. Jeweils vor und hinter einem Packgutstück wird mit einem quer zur Transportrichtung der Folienbahn ausgerichteten Trennschweißmesser der Folienschlauch abgetrennt. Mit weiteren zu beiden Seiten des Packgutstückes angeordneten seitlichen Trennschweißmessern werden dann seitliche Trennschweißnähte erzeugt und dadurch der Folienschlauch als Verpackungsbeutel allseits um das Packgutstück verschlossen. Hierbei kann die Länge der abgetrennten Folienschlauchabschnitte der mit Sensormitteln erfaßten Länge der Packgutstücke angepaßt werden. Da jedoch die Breite der Folienbeutel durch den festen Abstand der seitlichen Trennschweißmesser bestimmt wird, ist eine Anpassung an die Breite der Packgutstücke nicht möglich, vielmehr können seitliche Überstände entstehen. Um diese zu entfernen, wird die Transportrichtung eines bereits eingeschweißten Packgutstückes um 90° verändert und die bereits geschlossene Folienverpackung mit einer weiteren quer zur neuen Transportrichtung liegenden Trennschweißvorrichtung unmittelbar vor bzw. hinter dem Packgutstück in einem abschließenden Trennvorgang abgetrennt. Die Ausmaße der hierfür eingesetzten Vorrichtung sind außerordentlich ungünstig bezüglich der erforderlichen Stellfläche.From the DE 196 21 205 C2 a device is known, are surrounded with the Packgutstücke tubular of a film web. In each case in front of and behind a packaged piece of goods, the film tube is cut off with a separating welding knife oriented transversely to the transport direction of the film web. With further arranged on both sides of the Packgutstückes side Trennschweißmessern then lateral Trennschweißnähte be generated, thereby closing the film tube as packaging bag on all sides around the Packgutstück. In this case, the length of the separated film tube sections can be adapted to the detected with sensor means length of Packgutstücke. However, since the width of the film bag is determined by the fixed distance of the lateral Trennschweißmesser, an adaptation to the width of the Packgutstücke is not possible, but lateral projections can arise. In order to remove these, the transport direction of an already welded Packgutstückes is changed by 90 ° and the already closed film packaging with another transverse to the new direction of transport Separating welding device separated immediately before or behind the Packgutstück in a final separation process. The dimensions of the device used for this purpose are extremely unfavorable with respect to the required footprint.

Aus der DE 10 2005 025706 B3 ist eine Retourenverpackungsmaschine zum Einhüllen und Einschweißen von Packgutstücken wechselnder Größe in Folienmaterial bekannt, bei dem auf eine ortsfeste Ausrichtkante ausgerichtete Packgutstücke in einen Halbfolienschlauch eingeschlagen werden und nach dem Quertrennschweißen zwischen den einzelnen Packgutstücken auf eine Verschließkante querversetzt werden, worauf ein Längstrennschweißen entlang der noch offenen Längskante des Halbfolienschlauches erfolgt. Das Querversetzen der Packgutstücke bei noch nicht geschlossener Schlauchhülle ist maschinentechnisch aufwendig.From the DE 10 2005 025706 B3 a return packaging machine for wrapping and welding of Packgutstücken of varying size in film material is known in which aligned on a stationary Ausrichtkante Packgutstücke are wrapped in a Halbfolienschlauch and transverse cross-welding between the individual Packgutstücken be placed transversely on a Verschließkante, whereupon longitudinal welding along the still open longitudinal edge of the half-film tube takes place. The transverse displacement of Packgutstücke not yet closed hose cover is technically complicated.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung bereitzustellen, mit denen Überstände an Folienbeuteln, die bezogen auf die Transportrichtung vorgegebene Breite haben, jedoch Packgutstücke wechselnder Größe enthalten, in raumökonomischer Weise abgetrennt werden könnenThe invention has for its object to provide a method and an apparatus with which supernatants of plastic bags, which have based on the transport direction predetermined width, but contain packaged items of varying size, can be separated in a space-economical manner

Weiterhin sollen ein Verfahren und eine Vorrichtung der zum Einhüllen und Einschweißen von Packgutstücken wechselnder Größe in Folienmaterial so verbessert werden, daß Packgutstücke mit einer großen Spannweite von Stapelhöhen und von Formaten in wechselnder Reihenfolge in raumökonomischer Weise betriebssicher verpackt werden können, wobei die Anwendung auf Banderoliereranlagen ebenso wie auf Halbfolienschlauchanlagen möglich sein soll.Furthermore, a method and apparatus for wrapping and welding of Packgutstücken changing size in film material to be improved so that Packgutstücke with a large range of stack heights and formats in varying order in space-economical manner can be packed reliable, the application to Banderoliereranlagen as well as should be possible on Halbfolienschlauchanlagen.

Die Lösung besteht in einem Verfahren zum Abschweißen von Überständen an Folienbeuteln mit bezogen auf die Transportrichtung vorgegebener Breite, die Packgutstücke wechselnder Größe enthalten, wobei die Packgutstücke bezogen auf die Transportrichtung jeweils innen an einer Längskante der Folienbeutel dicht anliegen und an der anderen Längskante der Folienbeutel ein wechselnd breiter einseitiger Überstand über die einzelnen Packgutstücke vorliegt, mit den Schritten:

  • Drehen der einzelnen Packgutstücke um 90°, so daß der zuvor seitlich liegende Überstand in Transportrichtung nach vorne oder hinten weist,
  • Weitertransport der einzelnen Packgutstücke in der vorherigen Transportrichtung, Abtrennen der Überstände durch Quertrennschweißen der Folienbeutel vor oder hinter den einzelnen Packgutstücken.
The solution consists in a method for welding off supernatants of foil bags with respect to the transport direction predetermined width, the Packgutstücke of varying size, the Packgutstücke relative to the transport direction in each case inside a longitudinal edge of the foil bag tightly abut and on the other longitudinal edge of the foil bag alternately wide one-sided protrusion over the individual packaged goods, with the following steps:
  • Turning the individual items to be packaged by 90 °, so that the supernatant lying supernatant in the transport direction to the front or back,
  • Further transport of the individual items to be packaged in the previous transport direction, separation of the supernatants by cross-section welding of the foil bags in front of or behind the individual packaged goods.

Die Lösung besteht darüberhinaus in einem Verfahren zum Einhüllen und Einschweißen von Packgutstücken wechselnder Größe in Folienmaterial, mit den Schritten:

  • Einschlagen der einzelnen Packgutstücke in Verpackungsfolie, wobei sich obere und untere Folienlagen auf die Ober- und Unterseiten der Packgutstücke legen,
  • erstes Quertrennschweißen der oberen und unteren Folienlagen quer zur Transportrichtung der Packgutstücke jeweils unmittelbar hinter der hinteren Stirnseite und vor der vorderen Stirnseite der einzelnen Packgutstücke,
  • Längstrennschweißen der oberen und unteren Folienlagen an zumindest einer Längsseite der einzelnen Packgutstücke in festem Abstand von der anderen Längsseite der einzelnen Packgutstücke, so daß sich allseitig geschlossene Folienbeutel vorgegebener Breite unabhängig von der Größe der einzelnen Packgutstücke bilden, wobei die Packgutstücke jeweils innen an einer Längskante der Folienbeutel dicht anliegen und an der anderen Längskante des Folienbeutels ein wechselnd breiter Überstand über die einzelnen Packgutstücke entsteht,
  • Drehen der einzelnen Packgutstücke um 90°, so daß der zuvor seitlich liegend Überstand in Transportrichtung nach vorne oder hinten weist,
  • Weitertransport der einzelnen Packgutstücke in der vorherigen Transportrichtung, Abtrennen der Überstände durch Quertrennschweißen der Folienbeutel dicht vor oder hinter den einzelnen Packgutstücken,
wobei die Packgutstücke einen insgesamt linearen Transportweg durchlaufen.The solution also consists in a method for wrapping and welding of packaged items of varying size in film material, with the following steps:
  • Wrapping the individual packaged goods in packaging film, with top and bottom film layers laying on the top and bottom sides of the packaged goods,
  • first cross-cutting welding of the upper and lower film layers transversely to the transport direction of the Packgutstücke each directly behind the rear end face and in front of the front end face of the individual Packgutstücke,
  • Longitudinal separation welding of the upper and lower film layers on at least one longitudinal side of the individual Packgutstücke at a fixed distance from the other longitudinal side of the individual Packgutstücke so that all sides closed foil bag predetermined width regardless of the size of the individual Packgutstücke form, the Packgutstücke each inside a longitudinal edge of Tightly against the film bag and at the other longitudinal edge of the film bag, a varying overhang over the individual Packgutstücke arises,
  • Turn the individual items to be packaged by 90 °, so that the previously laterally projecting projection in the transport direction to the front or back,
  • Further transport of the individual items to be packaged in the previous transport direction, separation of the supernatants by cross-section welding of the foil bags close to or behind the individual packaged goods,
wherein the Packgutstücke go through an overall linear transport path.

Die Abmessungen der einzelnen Packgutstücke können mit entsprechender Sensorik erfaßt werden. Die erfaßten Daten werden danach in Steuersignale zum Antrieb der Längstransportmittel und zur Betätigung der ersten Quertrennschweißung und der abschließenden Quertrennschweißung umgesetzt.The dimensions of the individual Packgutstücke can be detected with appropriate sensors. The acquired data is then converted into control signals for driving the longitudinal transport means and for actuating the first cross-cut welding and the final cross-cut welding.

Hierbei ist insbesondere vorgesehen, daß das erste Quertrennschweißen soweit der Trennvorgang betroffen ist, nur einen Mittelbereich erfaßt und zusammenhängende seitliche Randstreifen bestehen läßt. Die Schweißnähte können hierbei auch die gesamte Breite der Folienbahnen überdecken. Die Randstreifen verbinden die einzelnen eingehüllten Packgutstücke miteinander und können bei entsprechendem Antrieb und Führung den Transport der Packgutstücke unterstützen.In this case, it is provided in particular that the first cross-cutting welding as far as the separation process is concerned, only a central region detected and contiguous lateral edge strips exist. The welds can also cover the entire width of the film webs. The edge strips connect the individual wrapped Packgutstücke each other and can support the transport of Packgutstücke with appropriate drive and guide.

Beim anschließenden Längstrennschweißen werden die außerhalb der Längsschweißstellen liegenden seitlichen Randstreifen dann von dem Folienbeutel abgetrennt und die Verschnittanteile aufgespult. Das Längstrennschweißen entlag der Längsseite der Packgutstücke kann bei stehenden Folienbeuteln jeweils gleichzeitig auf der ganzen Länge der Folienbeutel erfolgen. Vorzugsweise erfolgt jedoch das Längstrennschweißen entlang der Längsseite der Packgutstücke bei fortbewegten Folienbeuteln fortschreitend, wobei ortsfeste thermische Trennschweißmesser zum Einsatz kommen können.During the subsequent longitudinal separation welding, the lateral edge strips lying outside the longitudinal welding points are then separated from the foil bag and the waste portions are wound up. The longitudinal separation welding entlag the longitudinal side of the Packgutstücke can be carried out at the same time on the entire length of the film bag in standing film bags. Preferably, however, longitudinal welding takes place progressively along the longitudinal side of the items to be packaged in the case of moving foil bags, with stationary thermal separation welding knives being able to be used.

Hierbei wird auf eine Verstellung des Querabstands der Mittel zum Längstrennschweißen auf die veränderlichen Breitenabmessungen der einzelnen Packgutstücke verzichtet, um eine optimale Verpackungsleistung zu erzielen. Mit dem Längstrennschweißen erfolgt ein allseitiges Einschweißen der Packgutstücke durch Verschwei-βen der oberen und unteren Folienlagen auf der gesamten Länge der Packgutstükke.In this case, an adjustment of the transverse spacing of the means for longitudinal separation welding is dispensed with the variable width dimensions of the individual Packgutstücke to achieve optimum packaging performance. With the longitudinal split welding, the packaged goods are welded in on all sides by welding the upper and lower film layers over the entire length of the packaged goods.

Das Abschweißen der zunächst auf einer Seite liegenden Überstände erfolgt erst nach dem erfindungsgemäßen Drehen der Packgutstücke um 90°, wobei ausschließlich der Vorschub in der ursprünglichen Transportrichtung durch die zweite Quertrennschweißvorrichtung hindurch individuell gesteuert werden muß. Dagegen sind keinerlei Anpassungen der Einstellung der Längs- oder Quertrennschweißvorrichtungen erforderlich. Durch das erfindungsgemäße Drehen der Packgutstücke ist eine rein lineare Verkettung aller Anlagenteile möglich, so daß sich raumökonomische Aufstellungspläne auch bei Einsatz mehrerer Vorrichtungen in einem Betriebsgebäude verwirklichen lassen. Ein Querversetzen der Folienbeutel im Transportweg, bei dem es leicht zu einem Verrutschen und Verformen der Packgutstücke innerhalb der Folienbeutel kommen könnte, wird vollständig vermieden.The abutment of the supernatants initially located on one side takes place only after the inventive turning of the Packgutstücke by 90 °, with only the feed in the original direction of transport through the second Quertrennschweißvorrichtung must be controlled individually. In contrast, no adjustments to the adjustment of the longitudinal or transverse separation welding devices are required. The inventive turning the Packgutstücke a purely linear concatenation of all parts of the system is possible, so that can be realized space-economical installation plans even when using multiple devices in a factory building. A transverse displacement of the film bag in the transport path, in which it could easily come to a slipping and deformation of the Packgutstücke within the foil bag, is completely avoided.

Ein Einsetzen der Packgutstücke an einer seitlichen Anlagekante ist für die weitere Verfahrensabfolge vorauszusetzen. Eine Automatisierung eines seitlich anliegenden Einsetzens oder Überführens ist mit einfachen geeigneten Mitteln der Zuführung möglich. Die Erfassung der Länge und der Höhe der einzelnen Packgutstücke kann mittels geeigneter Sensoren, insbesondere berührungslos, erfolgen.An insertion of the packaged goods on a lateral contact edge is to be assumed for the further sequence of the process. Automation of side-by-side insertion or transfer is possible with simple suitable means of delivery. The detection of the length and the height of the individual Packgutstücke can be done by means of suitable sensors, in particular contactless.

Nach einer ersten Verfahrensführung (vierseitig verschweißende Maschine) ist vorgesehen, daß ein Verbinden zweier Folienbahnen zu einem Folienvorhang vor den vorderen Stirnseiten der Packgutstücke in einer ersten Transportposition und das Quertrennschweißen hinter den hinteren Stirnseiten der Packgutstücke am gleichen Ort in einer zweiten Transportposition erfolgt, insbesondere für zwei aufeinanderfolgende Packgutstücke in einem Arbeitsgang.After a first process management (four-side welding machine), it is provided that a joining of two film webs to a film curtain in front of the front end faces of the Packgutstücke in a first transport position and the transverse cutting welding behind the rear end faces of Packgutstücke takes place in the same position in a second transport position, in particular for Two consecutive packaged goods in one operation.

Nach einer zweiten Verfahrensführung (Formschultermaschine) wird vorgeschlagen, daß ein Halbfolienschlauch durch Abrollen doppelliegenden Materials von einer Materialrolle, Spreizen der beiden Lagen und Umlenken um 90° hergestellt wird, bzw. daß Flachfolienmaterial von einer Materialrolle abgerollt und in einer Längsfaltstation zu einem Halbfolienschlauch doppelt gelegt wird, wobei die einzelnen Packgutstücke dann in den Halbfolienschlauch längs eingeführt werden, wobei sie weitgehend in Anlage mit der Verbindungskante der oberen und unteren Folienlage sind. Danach erfolgt ein Quertrennschweißen vor den vorderen Stirnseiten der Packgutstücken in einer ersten Transportposition bzw. ein Quertrennschweißen hinter den hinteren Stirnseiten der Packgutstücke am gleichen Ort in einer zweiten Transportposition, insbesondere für zwei aufeinander folgenden Packgutstücke in einem Arbeitsgang.After a second process management (forming shoulder machine), it is proposed that a half-film tube is made by rolling double-lying material from a roll of material, spreading the two layers and deflecting by 90 °, or that rolled flat film material from a roll of material and placed twice in a longitudinal folding station to a half-film tube is, with the individual Packgutstücke are then inserted longitudinally in the half-film tube, wherein they are largely in contact with the connecting edge of the upper and lower film layer. This is followed by transverse cutting welding in front of the front end faces of the packaged goods in a first transport position or transverse cutting welding behind the rear end faces of the packaged goods at the same location in a second transport position, in particular for two successive packaged goods in a single operation.

Während bei der erstgenannten Banderolierertechnik das Längstrennschweißen in festem Abstand voneinander an zwei Längskanten erfolgen muß, ist bei der Halbfolienschlauchtechnik ein Längsschweißvorgang nur an einer Längsseite erforderlich, wobei die Schweißung einen festen Querabstand von der gegenüberliegenden Längskante der Packgutstücke hat, die durch die Anlagefluchtlinie vorgegeben ist.While in the former Bandander the longitudinal separation welding must be at a fixed distance from each other at two longitudinal edges, in the Halbfolienschlauchtechnik a longitudinal welding process only on one longitudinal side is required, the weld has a fixed transverse distance from the opposite longitudinal edge of Packgutstücke, which is predetermined by the Anlagefluchtlinie.

Die seitlich abgetrennten Überstände, d.h. die Verschnittanteile werden in Transportrichtung abgeführt. Hierbei ist es insbesondere günstig, Zeitpunkt oder Geschwindigkeit des Weitertransportes der abgetrennten Überstände vom Weitertransport des eingehüllten Packgutstückes zu entkoppeln, um ein erneutes Ankleben des Folienmaterials an der Trennstelle zu verhindern. Die einzelnen seitlich abgetrennten Überstände sollen möglichst exakt in Längsrichtung abgeführt werden.The laterally separated projections, ie the waste portions are removed in the transport direction. In this case, it is particularly favorable, time or speed decoupling the further transport of the separated supernatant from the further transport of the wrapped Packgutstückes to prevent re-sticking of the film material at the separation point. The individual laterally separated supernatants should be removed as exactly as possible in the longitudinal direction.

Das erfindungsgemäße Drehen der einzelnen Packgutstücke erfolgt nach einem Anheben von den Längstransportmitteln, wobei nach dem Drehen ein Wiederabsenken auf die Längstransportmittel erfolgt. Der zuvor seitlich liegende Überstand wird hierbei bevorzugt nach hinten gedreht. Anschließend werden die Packgutstücke einzelnd in eine weitere Transportposition überführt, in der sie eine zweite Quertrennschweißvorrichtung exakt durchfahren haben, wobei der Überstand in einem anschließenden Quertrennschweißverfahren über die gesamte Breite des Folienbeutels abgetrennt wird. Die abgetrennten Überstände werden quer zur Transportrichtung horizontal oder nach unten abgeführt.The inventive turning of the individual Packgutstücke takes place after a lifting of the longitudinal transport means, wherein after turning takes place a Wiederabsenken on the longitudinal transport means. The previously supernatant supernatant is preferably turned backwards. Subsequently, the items to be packaged are individually transferred to a further transport position, in which they have passed through a second cross-cutting device exactly, wherein the supernatant is separated in a subsequent cross-cutting welding process over the entire width of the film bag. The separated supernatants are discharged horizontally or downwards transversely to the transport direction.

In einer besonders günstigen Verfahrensführung wird vorgeschlagen, daß zumindest die obere Folienlage vor dem allseitigen Verschweißen der Folienbeutel zum Druckausgleich im Bereich des zunächst seitlichen Überstandes perforiert wird und die Perforation beim abschließenden Quertrennschweißen zum Abtrennen des Überstandes vom Folienbeutel abgetrennt werden. Hiermit können übermäßige Lufteinschlüsse in den Folienbeutel beim erstmaligen allseitigen Verschweißen vermieden werden, bzw. die Zeiten bis zum erstmaligen allseitigen Verschweißen reduziert werden. Da die Perforierungen in dem abschließend abzuschweißenden Überstand vorgesehen sind, ist die nach dem abschließenden Quertrennschweißen verbleibende Gesamtverpackung schließlich hermetisch dicht.In a particularly favorable procedure, it is proposed that at least the upper film layer be perforated before the all-round welding of the film bag for pressure equalization in the region of the initially lateral supernatant and the perforation are separated during final cross-cutting welding to separate the supernatant from the film bag. Hereby, excessive air pockets in the foil bag can be avoided during the first-time all-round welding, or the times can be reduced until the first-time all-round welding. Since the perforations are provided in the final supernatant to be welded off, the total packaging remaining after the final cross-cut welding is finally hermetically sealed.

Packgutstücke von maximaler Breite werden ebenfalls in der Drehstation um 90° gedreht, obwohl hierbei kein zunächst seitlicher oder nach dem Drehen nach hinten weisender Überstand vorhanden ist, der abgetrennt werden müßte. Insoweit bleibt bei diesen Packgutstücken die Perforierung im Folienbeutel erhalten.Packaged goods of maximum width are also rotated in the turning station by 90 °, although in this case no first side or after turning backward supernatant is present, which would have to be separated. In that regard, the perforation is retained in the foil bag in these Packgutstücken.

Die Lösung besteht daneben in einer Vorrichtung zum Abschweißen von Überständen an Folienbeuteln mit bezogen auf die Transportrichtung vorgegebener Breite, die Packgutstücke wechselnder Größe enthalten,
gekennzeichnet durch die Merkmale:

  • eine Drehstation zum Drehen der einzelnen Packgutstücke um 90°,
  • eine Quertrennschweißvorrichtung zum Verschweißen und Abtrennen eines Überstandes an einer vorderen oder hinteren Stirnseite der Packgutstücke, die ursprünglich eine Längsseite der Packgutstücke bildete,
  • sowie Längstransportmittel in linearer Anordnung und Verkettung.
The solution consists in addition in a device for welding off supernatants of foil bags with respect to the transport direction predetermined width, the Package goods of varying size included,
characterized by the features:
  • a turning station for turning the individual packaged goods by 90 °,
  • a cross-cutting device for welding and separating a supernatant at a front or rear end side of the packaged goods, which originally formed a longitudinal side of the packaged goods,
  • as well as longitudinal transport means in a linear arrangement and concatenation.

Die Lösung besteht weiterhin in einer Vorrichtung zum Einhüllen und Einschweißen von Packgutstücken wechselnder Größe in Folienmaterial umfassend:

  • Mittel zum Einschlagen der einzelnen Packgutstücke in Verpackungsfolie, so daß sich obere und untere Folienlagen auf die Ober- und Unterseiten der Packgutstücke legen,
  • eine erste Quertrennschweißvorrichtung zum Verschweißen und Abtrennen von Folienhüllen jeweils an der hinteren Stirnseite und an der vorderen Stirnseite der Packgutstücke,
  • Längstrennschweißvorrichtungen zum Verschließen von Folienbeuteln auf zumindest einer Längsseite der einzelnen Packgutstücke, die in festem Querabstand zur gegenüberliegenden Langseite der jeweiligen Packgutstücke angeordnet sind,
  • eine Drehstation zum Drehen der einzelnen Packgutstücke um 90°,
  • eine zweite Quertrennschweißvorrichtung zum Verschweißen und Abtrennen eines Überstandes an einer vorderen oder hinteren Stirnseite der Packgutstücke, die ursprünglich eine Längsseite der Packgutstücke bildete,
  • sowie Längstransportmittel in linearer Anordnung und Verkettung mit den einzelnen Vorrichtungen und der Drehstation.
The solution also consists in a device for wrapping and welding of Packgutstücken of varying size in film material comprising:
  • Means for wrapping the individual items to be packaged in packaging film, so that upper and lower layers of film are placed on the upper and lower sides of the packaged goods,
  • a first cross-cutting welding device for welding and separating foil sheaths respectively at the rear end side and at the front end side of the packaged goods,
  • Longitudinal separation welding devices for closing foil bags on at least one longitudinal side of the individual packaged goods, which are arranged at a fixed transverse distance to the opposite long side of the respective Packgutstücke,
  • a turning station for turning the individual packaged goods by 90 °,
  • a second cross-cutting device for welding and separating a supernatant at a front or rear end side of the Packgutstücke, which originally formed a longitudinal side of the Packgutstücke,
  • as well as longitudinal transport means in a linear arrangement and concatenation with the individual devices and the turning station.

Die wesentlichen Merkmale sind hierbei Längstrennschweißvorrichtungen in festen Positionen, insbesondere paarweise in festem Querabstand zueinander, sofern die Packgutstücke bei einer vierseitig verschweißenden Maschine in einen aus zwei Flachfolien gebildeten Folienvorhang einfahren, oder eine einzelne Längstrennschweißvorrichtung in festem Querabstand zur Anlagekante, sofern die Packgutstükke bei einer Formschultermaschine in einen Halbfolienschlauch eingehüllt werden. In beiden Fällen ist nach dem Längstrennschweißen eine außermittige seitlich versetzte innere Anlage der Packgutstücke an einer Längskante im Folienbeutel gegeben, da die Packgutstücke an einer Anlagekante anliegend in die Vorrichtung eingesetzt werden.The essential features here are longitudinal separation welding devices in fixed positions, in particular in pairs at a fixed transverse distance from each other, if the Packgutstücke retract in a four-side welding machine in a film curtain formed from two flat films, or a single longitudinal separation welding device at a fixed transverse distance to the contact edge, if the Packgutstükke at a form shoulder machine wrapped in a half-film tube. In both cases, after the longitudinal separation welding an off-center offset laterally internal system of Packgutstücke given at a longitudinal edge in the film bag, since the Packgutstücke be used adjacent to a contact edge in the device.

Ein Verzicht auf Verstellmittel zur ständig wechselnder Einstellung für die Längstrennschweißvorrichtungen auf eine wechselnde Breite der einzelnen Packgutstücke vereinfacht die Vorrichtung wesentlich.Dispensing with adjusting means for constantly changing setting for the longitudinal separating devices on an alternating width of the individual Packgutstücke simplifies the device significantly.

Der Seitenabstand der beidseitigen Längstrennschweißvorrichtungen voneinander bzw. der Seitenabstand der einzelnen Längstrennschweißvorrichtung von der gegenüberliegenden Anlageschiene für die Packgutstücke ist hierbei fest eingestellt, so daß das Längstrennschweißen mit vereinfachten Mitteln und beschleunigt erfolgen kann.The lateral distance of the two-sided longitudinal separation welding devices from each other or the side distance of the individual longitudinal separation welding device from the opposite bearing rail for the Packgutstücke is fixed in this case, so that the longitudinal separation welding can be done with simplified means and accelerated.

Ein herausragendes Merkmal der erfindungsgemäßen Vorrichtung liegt in einer Drehstation, in der die Packgutstücke aus ihrer unsymmetrischen seitlichen Lage bezüglich der Folienbeutel in eine um 90° verdrehte Position verbracht werden, der in der zuvor seitlich liegende Überstand nunmehr nach vorne oder bevorzugt nach hinten relativ zu den Packgutstücken weist.An outstanding feature of the device according to the invention lies in a turning station, in which the Packgutstücke be moved from its unbalanced lateral position with respect to the foil bag in a rotated position by 90 °, in the previously lying supernatant now forward or preferably backward relative to the Packaged goods points.

Schließlich ist eine zweite Quertrennschweißvorrichtung von Bedeutung, die den nunmehr in Transportrichtung nach vorne oder bevorzugt nach hinten weisenden Überstand abschweißen kann, so daß die Packgutstücke wechselnder Größe bzw. wechselnder Formate an allen vier Seiten passend und ohne größere Resträume eingeschweißt sind. Der Durchlauf der einzelnen Packgutstücke durch die zweite Quertrennschweißvorrichtung ist leicht mit geeigneten Mitteln abzutasten, um die Quertrennschweißvorrichtung danach zu steuern.Finally, a second Quertrennschweißvorrichtung of importance, which can now weld in the transport direction forward or preferably rearwardly projecting supernatant, so that the Packgutstücke changing size or changing formats are welded on all four sides fitting and without major residual spaces. The passage of the individual packages through the second cross-cutting device is easily scanned by suitable means to control the cross-cutting device thereafter.

Die Drehstation weist vorzugsweise eine Vielzahl von in einem Raster in einer Ebene angeordnete Transportrollen auf, die insbesondere antreibbar sind, wobei die Drehstation einen anhebbaren und um schrittweise jeweils 90° drehbaren Hub- und Drehtisch aufweist, der eine Vielzahl von in einem Raster angeordnete Durchbrüche umfaßt, die in zwei um 90° voneinander verschiedenen Drehstellungen so auf die Transportrollen absenkbar sind, daß diese die Durchbrüche mit oberen Rollensegmenten durchdringen. Hierbei ist insbesondere vorgesehen, daß die Transportrollen und die Durchbrüche in einem quadratischen Raster angeordnet sind. Weiterhin wird vorgeschlagen, daß der Hub- und Drehtisch über ein Hub- und Drehgetriebe mit Steuerkurven mit einem einzigen Schrittantriebsmotor verbunden ist.The turning station preferably has a plurality of arranged in a grid in a plane transport rollers, which are in particular driven, wherein the rotating station has a liftable and gradually to each 90 ° rotatable lifting and rotating table, which comprises a plurality of arranged in a grid breakthroughs , which in two 90 ° from each other different rotational positions so on the Transport rollers are lowered, that they penetrate the openings with upper roller segments. In this case, it is provided in particular that the transport rollers and the apertures are arranged in a square grid. Furthermore, it is proposed that the lifting and rotary table is connected via a lifting and turning gear with cams with a single stepper motor.

Die Rollen der Drehstation sind in vier gemeinsam angetriebene Blöcke gegliedert, zwischen denen eine kreuzförmige Anordnung von Ansaugöffnung im Hub- und Drehtisch liegen kann, die beim Anheben und Drehen mit Unterdruck beaufschlagt werden, um ein Verrutschen der Folienbeutel infolge Trägheitskräften zu verhindern.The roles of the rotating station are divided into four jointly driven blocks, between which may lie a cross-shaped arrangement of suction in the lifting and rotating table, which are applied during lifting and turning with negative pressure to prevent slippage of the film bag due to inertial forces.

Unmittelbar hinter oder bevorzugt unmittelbar vor der zweiten Quertrennschweißvorrichtung in Transportrichtung sind Mittel zum seitlichen Querabführen der abgetrennten Überstände vorzusehen, wie sie beispielsweise in der DE 196 21 205 C2 beschrieben sind, auf die hiermit Bezug genommen wird. Alternativ können statt dessen neuartige Mittel zum Querabführen nach unten der abgetrennten Überstände vorgesehen werden, wie sie weiter unten detailliert beschrieben sind.Immediately behind or preferably immediately before the second cross-cutting device in the transport direction means for lateral lateral removal of the separated supernatants are provided, as for example in the DE 196 21 205 C2 are described, which is incorporated herein by reference. Alternatively, instead, novel means may be provided for transversely discharging the separated supernatants, as described in greater detail below.

Die Rollen einer Auslaufrollenbahn können beginnend mit der zweiten Quertrennschweißvorrichtung gummiert sein, um beim Anhalten einen aufliegenden Folienbeutel so effektiv abzustoppen, daß das einliegende Packgutstück infolge Trägheitskräften im Folienbeutel nach vorne rutscht, so daß die durch das abschließende Quertrennschweißen bestimmte Beutellänge minimiert werden kann.The rollers of an exit roller conveyor can be gummed beginning with the second cross-cutting device to effectively stop a resting film bag when stopping so that the incoming Packgutstück slips forward due to inertial forces in the film bag, so that the determined by the final cross-cut welding bag length can be minimized.

Ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung ist in den Zeichnungen dargestellt und wird nachstehend beschrieben.A preferred embodiment of a device according to the invention is shown in the drawings and will be described below.

Figur 1 zeigt eine Gesamtvorrichtung

  1. a) in Seitenansicht
  2. b) in Draufsicht;
FIG. 1 shows an overall device
  1. a) in side view
  2. b) in plan view;

Figur 2 zeigt die Drehstation einer erfindungsgemäßen Vorrichtung

  1. a) in Seitenansicht
  2. b) in Draufsicht;
FIG. 2 shows the turning station of a device according to the invention
  1. a) in side view
  2. b) in plan view;

Figur 3 zeigt eine Ausschleusvorrichtung für abgetrennte Überstände in einer ersten Ausführung; FIG. 3 shows a separated supernatant discharge device in a first embodiment;

Figur 4 zeigt eine Ausschleusvorrichtung für abgetrennte Überstände in einer zweiten Ausführung. FIG. 4 shows a separation device for separated supernatants in a second embodiment.

Die beiden Darstellungen der Figur 1 werden nachstehend gemeinsam beschrieben.The two representations of FIG. 1 will be described together below.

Die Vorrichtung umfaßt deutlich unterscheidbar eine erste Maschineneinheit 11, in Form einer Packstation, die einen sogenannten Hochpacker darstellt, und eine zweite Maschineneinheit 51, die eine Drehstation 55 umfaßt.The apparatus clearly comprises a first machine unit 11, in the form of a packing station, which constitutes a so-called high packer, and a second machine unit 51, which comprises a turning station 55.

An der Maschineneinheit 11 sind ein Maschinengestell 12 und eine Abdeckhaube 13 zu unterscheiden. An der Frontseite ist ein verschiebbares Bedienpult 32 dargestellt. Es sind zwei Halterungen 14, 15 zu erkennen, die jeweils eine Folienvorratsrolle 16, 17 tragen, von denen jeweils bandförmiges Flachfolienmaterial abgespult wird, das über obere Antriebs- und Führungsmittel 26 und über untere Antriebs- und Führungsmittel 27 zusammengeführt und miteinander verschweißt wird, um in die Vorrichtung eingeführte Packgutstücke allseitig mit Folienmaterial zu umhüllen.On the machine unit 11, a machine frame 12 and a cover 13 are to be distinguished. On the front of a sliding control panel 32 is shown. There are two holders 14, 15 can be seen, each carrying a film supply roll 16, 17, from which each uncoiled flat sheet material is unwound via upper drive and guide means 26 and lower drive and guide means 27 and welded together wrapped in the device Packgutstücke on all sides with film material to wrap.

Die Packgutstücke werden in eine Einführvorrichtung 19 von links eingeschleust und durchlaufen die gesamte Vorrichtung von links nach rechts. Die Einführvorrichtung 19 umfaßt im wesentlichen ein Einlauftransportband 18 sowie rechte und linke Führungsschienen 20, 21, wobei die rechte Führungsschiene 20 als Anlageschiene für alle Packgutstücke dient. Hierbei können die Packgutstücke manuell oder mit mechanischen Leitmitteln in Anlage mit der rechten Führungsschiene 20 gebracht werden. Eine Anlagefluchtlinie ist mit A bezeichnet. Auf das Einlauftransportband 18 folgt ein Auslauftransportband 22, wobei die Transportbänder 18, 22 in aufeinanderfolgender Anordnung eine horizontale Transportebene T bilden. Die Antriebs- und Führungsmittel 26,27 für die untere Folienbahn und die obere Folienbahn bewirken, daß die Folienbahnen vor einer ersten Quertrennschweißvorrichtung 28 in der Transportebene T zusammengeführt werden und in der ersten Quertrennschweißvorrichtung 28 jeweils vor und hinter jedem Packgutstück durch Quertrennschweißung miteinander verbunden werden. Hierbei wird die untere Folienbahn zwischen den Einlaufförderband 18 und dem Auslaufförderband 22 nach oben auf die Transportebene T geführt, so daß die untere Folienbahn an der Unterseite der Packgutstücke zu liegen kommt, während die obere Folienbahn sich über die vordere Stirnseite, die Oberseite und die hintere Stirnseite der Packgutstücke legt. Über eine berührungslose Erfassung der Höhe und der Länge der einzelnen Packgutstücke im Bereich des Einlaufs in die Vorrichtung wird sichergestellt, das jedes Packgutstück unmittelbar nach Durchlauf durch die erste Quertrennschweißvorrichtung 28 angehalten wird und danach unter Betätigung einer nach unten absenkbaren Quertraverse der ersten Quertrennschweißvorrichtung 28 die beiden Folienbahnen unmittelbar hinter einem Packgutstück zur schlaufenförmigen Umhüllung des Packgutstückes verbunden werden, wobei die beiden Folienbahnen gleichzeitig unmittelbar vor dem nächstfolgenden Packgutstück miteinander verbunden werden und die Folienbahnen zwischen den beiden entstehenden Schweißnähten mittels einer Trennschneide voneinander getrennt werden.The packaged goods are introduced into an insertion device 19 from the left and run through the entire device from left to right. The insertion device 19 essentially comprises an inlet conveyor belt 18 and right and left guide rails 20, 21, wherein the right guide rail 20 serves as a support rail for all Packgutstücke. Here, the Packgutstücke can be brought into contact with the right guide rail 20 manually or with mechanical guiding means. An investment line is designated A. On the intake conveyor belt 18 follows an outlet conveyor belt 22, wherein the conveyor belts 18, 22 in successive Arrangement form a horizontal transport plane T. The drive and guide means 26,27 for the lower film web and the upper film web cause the film webs are brought together in front of a first Quertrennschweißvorrichtung 28 in the transport plane T and are connected to each other in the first Quertrennschweißvorrichtung 28 before and behind each Packgutstück by cross-cutting. Here, the lower film web is guided between the inlet conveyor belt 18 and the outlet conveyor belt 22 up to the transport plane T, so that the lower film web comes to lie on the underside of the Packgutstücke, while the upper film web over the front end, the top and the rear Face of the packaged goods lays. Via a non-contact detection of the height and the length of the individual Packgutstücke in the region of the inlet into the device ensures that each Packgutstück is stopped immediately after passing through the first Quertrennschweißvorrichtung 28 and then pressing a downwardly lowerable crossbar of the first Quertrennschweißvorrichtung 28 the two Film webs are connected directly behind a Packgutstück to loop-shaped wrapping of Packgutstückes, wherein the two film webs are simultaneously connected to each other immediately before the next Packgutstück and the film webs between the two emerging welds are separated by means of a cutting edge.

Die beiden Schweißnähte werden durch parallel zur Trennschneide an der Quertraverse angeordnete Siegelleisten bzw. Oberstempel erzeugt, die sich auf einen geringfügig unterhalb der Transportebene T liegenden Unterstempel absenken lassen, der zum Verschweißen und Trennen gleichzeitig über die Transportebene T angehoben wird.The two weld seams are produced by sealing strips or upper punches arranged parallel to the cutting edge on the crosspiece, which can be lowered to a lower punch located slightly below the transport plane T, which is raised simultaneously over the transport plane T for welding and cutting.

Auf diese Weise entstehen um die Packgutstücke herum Folienhüllen, die an der Ober- und Unterseite sowie der vorderen und hinteren Stirnseite anliegen, während die beiden Seiten der Packgutstücke noch offen sind. Die Umhüllungen haben die Form von Bandschlaufen, wobei jeweils seitliche Überstände vorgesehen sind.In this way, around the Packgutstücke around foil covers that rest on the top and bottom and the front and rear end, while the two sides of the Packgutstücke are still open. The wrappings are in the form of belt loops, with lateral overhangs being provided in each case.

Vom Trennvorgang werden zwei seitliche Randstreifen ausgenommen, an denen die Packgutstücke noch aneinanderhängen und die für den Weitertransport der Packgutstücke in Anspruch genommen werden.From the separation process, two lateral edge strips are excluded, where the Packaged goods still stuck together and taken for further transport of Packgutstücke taken.

An der Quertraverse der ersten Quertrennschweißvorrichtung 28 ist auf der Einlaufseite ein Schneidwerkzeug 23 seitlich versetzt angebracht, mit dem bei jedem Trennund Schweißvorgang, d.h. bei jedem Verschweißen von oberer und unterer Foliebahn miteinander ein ca. 5 mm breiter Schlitz erzeugt wird, der die Folienbahnen durchsetzt. Dieser Schlitz dient später einer Entlüftung der geschlossenen Folienbeutel.On the cross-beam of the first cross-cutting device 28, a cutting tool 23 is laterally mounted on the inlet side, with which at each separation and welding operation, i. Each time the upper and lower film webs are welded together, an approximately 5 mm wide slot is created which penetrates the film webs. This slot later serves to vent the closed foil bag.

Unmittelbar an der Auslaufseite der Quertrennschweißvorrichtung 28, jedoch unabhängig steuerbar von dieser, ist eine horizontale mit einem vertikalen Stellzylinder verstellbare Entlüftungsplatte 29 angeordnet, die auf der Unterseite mit Schaumstoff belegt ist und sich vor jedem Quertrennschweißvorgang auf das jeweilige Packgutstück auflegt, um die obere Folienbahn an dieses anzudrücken. Die verdrängte Luft kann hierbei an der nach hinten weisenden Querkante der zuvor genannten Bandschlaufe, deren seitliche Überstände bereits im Bereich der Randstreifen von Verschließ- und Antriebsmitteln zusammengedrückt sind, entweichen.Immediately at the outlet side of the cross-cutting device 28, but independently controlled by this, a horizontal with a vertical actuating cylinder adjustable ventilation plate 29 is arranged, which is covered on the bottom with foam and hangs before each cross-cutting on the respective Packgutstück to the upper film web to press this. In this case, the displaced air can escape at the rear edge of the aforementioned belt loop, the lateral projections of which are already compressed in the region of the edge strips of closing and drive means.

Beim Weitertransport der in den genannten Bandschlaufen umlaufend eingeschweißten Packgutstücke mittels des Auslauftransportbandes 22 findet unabhängig von der konkreten Breite des individuellen Packgutstückes ein Längstrennschweißen auf beiden Seiten des Packgutstückes in festem Abstand voneinander statt, wobei der Querabstand zweier Längstrennschweißvorrichtungen 24, 25 vorgegeben ist und etwa dem Querabstand der Führungsschienen 20, 21 voneinander entspricht. Die Längstrennschweißvorrichtungen 24, 25 haben vorzugsweise ortsfeste thermische Trennschweißmesser. Die obere Folienbahn und die untere Folienbahn werden zum Längstrennschweißen zunächst auf beiden Seiten der Packgutstücke durch die Verschließ- und Antriebsmittel in einer Ebene zusammengeführt. Diese Ebene kann oberhalb der Transportebene T liegen, damit sowohl Teile der unteren Folienbahn als auch Teile der oberen Folienbahn in Anspruch genommen werden, um die seitlichen Teile eines geschlossenen Folienbeutels zu bilden. In den Längstrenntrennschweißvorrichtungen 24, 25 werden gleichzeitig mit dem Längsverschweißen die seitlichen Überstände auf beiden Seiten der Packgutstücke abgetrennt, wobei durch die ursprüngliche Ausrichtung der Packgutstücke, auf die Anlagefluchtlinie A das einzelne Packgutstück jeweils rechts in Transportrichtung in einem übergroßen Folienbeutel innen anliegt. Die auf beiden Seiten abgetrennten Überstände, die durchlaufend miteinander verbunden sind, werden angetrieben und auf Spulen 30, 31, die stirnseitig am Maschinengestell 12 angeordnet sind, aufgewickelt. Die allseits eingeschweißten Packgutstücke werden dann über das Auslaufförderband 22 aus der Maschineneinheit 11 ausgeschleust und in die Maschineneinheit 51 überführt.In the further transport of the packaged in the aforementioned belt loops packed Packgutstücke by the outlet conveyor belt 22 regardless of the specific width of the individual Packgutstückes longitudinal welding takes place on both sides of Packgutstückes at a fixed distance from each other, the transverse distance of two longitudinal separation devices 24, 25 is predetermined and about the transverse distance the guide rails 20, 21 corresponds to each other. The longitudinal separating welders 24, 25 preferably have fixed thermal cutting welding blades. The upper film web and the lower film web are first combined for longitudinal split welding on both sides of the Packgutstücke by the closing and drive means in a plane. This plane may be above the transport plane T, so that both parts of the lower film web and parts of the upper film web are used to form the lateral parts of a closed film bag. In the longitudinal separation welding devices 24, 25 are simultaneously with the longitudinal welding the separated side projections on both sides of the Packgutstücke, wherein the individual orientation of the Packgutstücke, on the Anlagefluchtlinie A the individual Packgutstück each rests on the right in the transport direction in an oversized foil bag inside. The separated on both sides supernatants, which are continuously interconnected, are driven and wound on spools 30, 31, which are arranged on the front side of the machine frame 12. The packaged items which are welded on all sides are then discharged from the machine unit 11 via the discharge conveyor belt 22 and transferred to the machine unit 51.

Auch an der Maschineneinheit 51 sind ein Maschinengestell 52 und eine Abdeckhaube 53 zu erkennen. Die Maschineneinheit 51 umfaßt eine Einlaufrollenbahn 54, die sich mit geringem Abstand bei gleicher Transportrichtung an das Auslaufförderband 22 anschließt, eine Drehstation 55 und eine Auslaufrollenbahn 56. Die Drehstation 55 umfaßt einen Hub- und Drehtisch 57 mit einem Hub- und Drehgetriebe 58 sowie antreibbare Rollen 59, die in einem quadratischen Raster angeordnet sind und jeweils mit einem oberen Segment den mit Ausstanzungen versehenen Hub- und Drehtisch 57 in dessen Ruhelage durchdringen. Zumindest die Länge der einzelnen Packgutstücke wird beim Einlaufen in die Drehstation 55 mit berührungslosen Sensormitteln erfaßt. Sobald ein Packgutstück in Transportrichtung mittig auf dem Hub-und Drehtisch 57 aufliegt, werden die Rollen 59 im Bereich der Drehstation 55 stillgesetzt und der Hub- und Drehtisch 57 angehoben, so daß das Packgutstück auf der durchbrochenen Fläche des Hub- und Drehtisches aufliegt und von den Rollen abgehoben ist. Danach wird der Hub- und Drehtisch um 90° gedreht. Der zuvor in Transportrichtung links liegende Überstand des Folienbeutels wird hierbei bezogen auf das Packgutstück in Transportrichtung nach hinten gedreht. Anschließend wird der Hub- und Drehtisch 57 wieder abgesenkt und die Rollen 59 im Bereich der Drehstation 55 werden wieder angetrieben, so daß das Packgutstück auf die gesondert antreibbare Auslaufrollenbahn 56 gelangt. Nach dem völligen Durchlaufen eines Packgutstückes durch eine zweite Quertrennschweißvorrichtung 60 wird die Auslaufrollenbahn 56 angehalten und der jetzt in Transportrichtung nach hinten liegende Überstand in der Quertrennschweißvorrichtung 60 vom Folienbeutel abgetrennt. Auch die Quertrennschweißvorrichtung 60 hat eine höhenverstellbare Quertraverse, an der ein Trennschweißmesser bzw. ein beheizbarer Oberstempel angeordnet ist, der sich mittels der Quertraverse auf einen geringfügig unterhalb der Transportebene T liegende Unterstempel absenken läßt. Unmittelbar vor der Quertrennschweißvorrichtung 60 liegt eine Vorrichtung zum Ausschleusen des nunmehr völlig vom Schlauchbeutel abgetrennten Verschnittanteils. Die Ausschleusvorrichtung fügt sich innerhalb der Rollenbahn 56 in einem schmalen Bereich auf der Einlaufseite der Quertrennschweißvorrichtung 60 ein.
Anstelle der Einlaufrollenbahn 54 kann auch ein aus mehreren parallelen Endlosgurten bestehendes Einlaufförderband verwendet werden.Also on the machine unit 51, a machine frame 52 and a cover 53 can be seen. The machine unit 51 comprises an inlet roller conveyor 54, which adjoins the outlet conveyor belt 22 at a small distance in the same transport direction, a rotating station 55 and an outlet roller conveyor 56. The rotary station 55 comprises a lifting and rotating table 57 with a lifting and turning gear 58 and drivable rollers 59, which are arranged in a square grid and each penetrate with an upper segment provided with punched-Hub- and turntable 57 in its rest position. At least the length of the individual Packgutstücke is detected when entering the turning station 55 with non-contact sensor means. Once a Packgutstück in the transport direction centrally rests on the lifting and turntable 57, the rollers 59 are stopped in the field of turning station 55 and raised the lifting and rotating table 57, so that the Packgutstück rests on the openwork surface of the lifting and rotating table and lifted off the rollers. Thereafter, the lifting and rotating table is rotated by 90 °. The supernatant of the film bag, which previously lies on the left in the transport direction, is hereby rotated in the transport direction towards the rear relative to the packaged item. Subsequently, the lifting and rotating table 57 is lowered again and the rollers 59 in the area of the rotating station 55 are driven again so that the packaged product piece reaches the separately drivable outfeed roller track 56. After complete passage of a Packgutstückes by a second Quertrennschweißvorrichtung 60, the outlet roller conveyor 56 is stopped and now separated in the transport direction supernatant in the cross-cutting device 60 from the film bag. The cross-cutting device 60 also has a height-adjustable crosspiece on which a separating welding knife or a heatable upper punch is arranged. which can be lowered by means of the cross-beam to a slightly below the transport plane T lower punch. Immediately before the cross-cutting device 60 is a device for discharging the now completely separated from the tubular bag waste portion. The discharge device fits within the roller conveyor 56 in a narrow area on the inlet side of the cross-cutting device 60.
Instead of the inlet roller conveyor 54 may also be used consisting of a plurality of parallel endless belts infeed conveyor belt.

Nach dem Abführen des Verschnittanteils wird das allseits dicht eingeschweißte Packgutstück mittels der Auslaufrollenbahn 26 aus der Maschineneinheit 51 ausgeschleust.After the waste component has been removed, the package item which is tightly welded on all sides is discharged from the machine unit 51 by means of the outlet roller conveyor 26.

Bezüglich der Sensorik und der Steuerung sind die nachfolgenden Einzelheiten anzusprechen.With regard to the sensors and the controller, the following details are to be addressed.

An der Maschineneinheit 11 ist im Einlaufbereich eine Anordnung 71 von mehreren übereinanderliegenden horizontal eingerichteten Lichtschranken eingerichtet, mit der die Höhe der einlaufenden Packgutstücke erfaßt werden kann. Aufgrund der ermittelten Höhe wird die Höhenlage der Quertraverse der Quertrennschweißvorrichtung 28 so gesteuert, daß die Packgutstücke die Quertrennschweißvorrichtung 28 störungsfrei durchfahren können.On the machine unit 11, an arrangement 71 of several superimposed horizontally arranged light barriers is set up in the inlet area, with which the height of the incoming Packgutstücke can be detected. Due to the height determined, the height of the cross-beam of the cross-cutting device 28 is controlled so that the Packgutstücke the cross-cutting device 28 can pass through trouble-free.

Ebenfalls vor der Quertrennschweißvorrichtung 28 ist eine vertikal eingerichtete Lichtschranke 72 vorgesehen, die nach Feststellen des Durchlaufes eines Packgutstückes das Auslauftransportband 26 mit einem gewissen Nachlauf so steuert, daß dieses unmittelbar nach dem Passieren der Quertrennschweißvorrichtung 28 durch das Packgutstück angehalten wird. Hierbei wird über die vorstehend genannte erfaßte Höhe auch der erforderliche Nachlauf der oberen Folienbahn gesteuert.Also in front of the cross-cutting device 28, a vertically arranged light barrier 72 is provided, which controls after determining the passage of a Packgutstückes the outlet conveyor belt 26 with a certain amount of wake, that this is stopped by the Packgutstück immediately after passing the Quertrennschweißvorrichtung 28. In this case, the required trailing of the upper film web is controlled by the above-mentioned detected height.

Am Einlauf zur Maschineneinheit 51 befindet sich eine vertikal ausgerichtete Lichtschranke 73, die bei Erfassen eines einlaufenden Packgutstückes unmittelbar das Einlaufförderband 18 stoppt und damit das Nachschieben weiterer Packgutstücke verhindert, sofern gleichzeitig festgestellt werden muß, daß die Einlaufrollenbahn 54 der Maschineneinheit 51 stillsteht. Letzteres kann der Fall sein, wenn die Drehstation 55 mit einem Packgutstück besetzt ist.At the inlet to the machine unit 51 is a vertically oriented light barrier 73, which immediately stops the inlet conveyor belt 18 upon detection of an incoming Packgutstückes and thus the Nachschieben more Packgutstücke prevents, provided that it must be noted that the inlet roller conveyor 54 of the machine unit 51 is stationary. The latter may be the case when the turning station 55 is occupied by a Packgutstück.

An der Maschineneinheit 51 ist eine weitere vertikal ausgerichtete Lichtschranke 74 angeordnet, die die Einlaufrollenbahn 54 nach dem Einlaufen eines Packgutstückes anhält, sofern feststeht, daß sich noch ein Packgutstück auf der Drehstation 55 befindet. Erst wenn ein derartiges Packgutstück die Drehstation 55 verlassen hat, wird die Einlaufrollenbahn 54 wieder angetrieben.On the machine unit 51, a further vertically oriented light barrier 74 is arranged, which stops the inlet roller conveyor 54 after the entry of a Packgutstückes, if it is certain that there is still a Packgutstück on the rotating station 55. Only when such Packgutstück has left the turning station 55, the inlet roller conveyor 54 is driven again.

Mit einer weiteren senkrecht ausgerichtete Lichtschranke 75 wird die Länge des auf die Drehstation 55 einlaufenden Packgutstückes erfaßt, wobei unter Einrechnung eines angemessenen Nachlaufes eine in Transportrichtung mittige Position des Packgutstückes mit dem Hub- und Drehtisch 57 angestrebt wird, bevor die Rollen 59 der Drehstation 55 angehalten werden.With a further vertically aligned light barrier 75, the length of the incoming to the rotating station 55 Packgutstückes is detected, taking into account a reasonable follower in the transport direction central position of Packgutstückes with the lifting and turntable 57 is sought before the rollers 59 of the rotating station 55 stopped become.

Unmittelbar hinter der Lichtschranke 75 liegt eine horizontal quer zur Transportrichtung ausgerichtete Lichtschranke 76, mit der eine völlige Trennung zweier aufeinanderfolgender Packgutstücke überprüft wird. Sofern es zur Unterbrechung dieser Lichtschranke 76 nach Durchlauf eines vorlaufenden Packgutstückes kommt, wird verhindert, daß das vorlaufende Packgutstück in der Drehstation angehalten wird; vielmehr werden die entsprechenden aufeinanderfolgenden, durch Folienteile noch verbundenen Packgutstücke ohne Drehen in der Drehstation 55 und ohne Querabschweißen in der Quertrennschweißstation 60 durch die Maschineneinheit 51 durchgeleitet und anschließend ggfls. manuell ausgeschleust.Immediately behind the light barrier 75 is a horizontally oriented transversely to the direction of transport light barrier 76, with a complete separation of two successive Packgutstücke is checked. If it comes to the interruption of this light barrier 76 after passing a leading Packgutstückes, it is prevented that the leading Packgutstück is stopped in the rotating station; Rather, the corresponding successive, still connected by film parts Packgutstücke be passed through the machine unit 51 without turning in the rotating station 55 and without Querabschweißen in the cross-cutting station 60 and then ggfls if necessary. manually discharged.

Vor der Quertrennschweißvorrichtung 60 befindet sich eine weitere vertikal eingerichtete Lichtschranke 77, die nach Feststellen des Durchlaufes eines Packgutstückes die Auslaufrollenbahn 56 mit einem gewissem Nachlauf so steuert, daß dieses unmittelbar nach dem Passieren der Quertrennschweißvorrichtung 60 durch das Packgutstück angehalten wird, so daß das Querabschweißen des nach hinten weisenden Überstandes sehr dicht am Packgutstück erfolgen kann. Hierbei kann Luft durch den früher genannten Schlitz entweichen, der letztendlich im abgetrennten Überstand verbleibt.Before the cross-cutting device 60 is another vertically arranged light barrier 77, the output roller conveyor 56 with a certain caster controls after determining the passage of a Packgutstückes that this is stopped immediately after passing the Quertrennschweißvorrichtung 60 through the Packgutstück so that the Querabschweißen of rear-facing supernatant can be done very close to Packgutstück. This air can escape through the previously mentioned slot, which ultimately in the separated supernatant remains.

Die beiden Darstellungen der Figur 2 werden nachstehend gemeinsam beschrieben.The two representations of FIG. 2 will be described together below.

Es ist ein Hub- und Drehtisch 57 von etwa quadratischer Form dargestellt, der eine Vielzahl von in einem quadratischen Raster angeordneten Durchbrüchen 61 aufweist und von einer Hub- und Drehvorrichtung 58 aus der gezeigten Position angehoben und schrittweise um jeweils 90° gedreht werden kann. Der Hub- und Drehtisch 57 hat abgerundete Ecken 62, um den durch einen Kreis angedeuteten Schwenkbereich K gering zu halten. Die Hubfunktion ebenso wie das Verdrehen wird von einem einzigen Schrittmotor 63 mit einem Nockenscheiben gesteuerten Hub- und Drehgetriebe 64 vollzogen. Unterhalb des Hub- und Drehtisches 57 liegt eine Anordnung von Rollen 59, die aus vier quadratischen Blöcken bestehen, wobei in jedem Block jeweils eine Mehrzahl von Rollen auf einer gemeinsamen Welle liegen, wobei eine ebenso große Mehrzahl von Wellen in jedem Block parallel nebeneinander liegt. In der tiefsten Position des Hub- und Drehtisches 57 durchsetzen die Rollen 59 mit ihren oberen Segmenten die Durchbrüche 61, während die durchbrochene Oberfläche 65 des Hub- und Drehtisches in einer angehobenen Position desselben oberhalb der oberen Peripherie der Rollen 59 liegt. Durch Anheben des Hub- und Drehstisches 57 kann ein aufliegendes Packgutstück von den Rollen 59 abgehoben werden, so daß es mit dem Hub- und Drehtisch frei gedreht werden kann. Nach dem Drehen um 90° kann der Hub- und Drehtisch 57 wieder abgesenkt werden, wobei die Rollen 59 wieder in das quadratische Raster der Durchbrüche 61 im Hub- und Drehtisch eingreifen, so daß ein aufliegendes Packgutstück nach Verdrehen um 90° wieder mittels der antreibbaren Rollen 59 in der unveränderten Transportrichtung fortbewegt werden kann. Zwischen den genannten Blöcken der Rollen 59 liegen in kreuzförmiger Anordnung eine Mehrzahl von Ansaugöffnungen 65, die über Unterdruckkanäle 66 ausschließlich beim Antreiben und Drehen des Hub- und Drehtisches 57 beaufschlagt werden, um ein Verrutschen der Folienbeutel zu verhindern.It is a lifting and rotating table 57 shown of approximately square shape, which has a plurality of arranged in a square grid openings 61 and lifted by a lifting and rotating device 58 from the position shown and can be rotated stepwise by 90 °. The lifting and rotating table 57 has rounded corners 62 to keep the indicated by a circle pivot range K low. The lifting function as well as the twisting is performed by a single stepping motor 63 with a cam-controlled lifting and turning gear 64. Below the lifting and rotating table 57 is an arrangement of rollers 59, which consist of four square blocks, each block having a plurality of rollers on a common shaft, wherein an equally large plurality of waves in each block is parallel to each other. In the lowest position of the lifting and rotating table 57, the rollers 59 penetrate with their upper segments, the apertures 61, while the openwork surface 65 of the lifting and rotating table thereof in a raised position above the upper periphery of the rollers 59. By lifting the lifting and rotating table 57, an overlying Packgutstück be lifted from the rollers 59, so that it can be rotated freely with the lifting and rotating table. After turning by 90 °, the lifting and turntable 57 can be lowered again, the rollers 59 again engage in the square grid of the openings 61 in the lifting and turntable, so that an overlying Packgutstück after turning by 90 ° again by means of the drivable Rolls 59 can be moved in the unmodified transport direction. Between said blocks of rollers 59 are in a cross-shaped arrangement, a plurality of suction openings 65 which are acted upon by vacuum channels 66 exclusively when driving and rotating the lifting and rotating table 57 to prevent slipping of the film bag.

In Figur 3 ist eine Ausschleusvorrichtung für abgetrennte Überstände in an sich bekannter Ausführung gezeigt, die vor der zweiten Quertrennschweißvorrichtung innerhalb der Auslaufrollenbahn angeordnet ist. Die Ausschleusvorrichtung 81 ist in Transportrichtung betrachtet gezeigt und umfaßt eine Trägeranordnung 82 an der über ein Parallelogrammgetriebe 83 mit Stellzylinder 84 ein Rollensatz 85 anhebbar angeordnet ist. Dieser ist in der Figur in der untersten Stellung gezeigt in der die Rollen auf dem oberen Trum 87 einer Endlosriemenanordnung 86 aufliegen. Der Endlosriemen 88 ist hierbei von einem Antriebsmotor 89 antreibbar, während die Rollen des Rollensatzes 85 frei laufen und vom Endlosriemen mitgenommen werden.In FIG. 3 a discharge device for separated overhangs in a known per se embodiment is shown, which is arranged in front of the second cross-cutting device within the outlet roller conveyor. The discharge device 81 is in Viewed transport direction considered and includes a support assembly 82 to which a parallelogram 83 with actuating cylinder 84, a set of rollers 85 is arranged liftably. This is shown in the figure in the lowest position in which the rollers rest on the upper run 87 of an endless belt arrangement 86. The endless belt 88 is in this case driven by a drive motor 89, while the rollers of the roller set 85 run free and are taken along by the endless belt.

Eine Schnittkante eines abgetrennten Überstandes wird beim Absenken des Parallelogrammgetriebes 83 zwischen Rollenanordnung 85 und Endlosriemen 88 eingeklemmt und bei Betätigung des Antriebsmotors 89 horizontal und quer zur Transportrichtung aus dem allgemeinen Transportweg ausgeschleust. Eine allgemein mit 90 bezeichnete Umlenkanordnung lenkt hierbei den abgetrennten Überstand seitlich vom Transportweg nach unten ab.A cutting edge of a separated overhang is clamped when lowering the parallelogram 83 between roller assembly 85 and endless belt 88 and discharged horizontally and transversely to the transport direction from the general transport path upon actuation of the drive motor 89. A deflecting arrangement designated generally by 90 deflects the separated projection laterally from the transport path downwards.

In Figur 4 ist eine Ausschleusvorrichtung 91 in einer neuartigen zweiten Ausführung gezeigt, wobei die Darstellung einen vertikalen Längsschnitt in Transportrichtung im Bereich der zweiten Quertrennschweißvorrichtung darstellt. Die Transportebene T sowie Rollen 92 der Auslaufrollenbahn 56 sind ebenso erkennbar, wie Teile der zweiten Quertrennschweißvorrichtung, nämlich ein Schweißstempel 93 und ein Unterstempel 94.In FIG. 4 a discharge device 91 is shown in a novel second embodiment, wherein the representation represents a vertical longitudinal section in the transport direction in the region of the second cross-cutting device. The transport plane T and rollers 92 of the outfeed roller conveyor 56 are also recognizable, as are parts of the second transverse cutting device, namely a welding punch 93 and a lower punch 94.

Unmittelbar vor der Quertrennschweißvorrichtung auf der Einlaufseite liegt eine unabhängig vom Schweißstempel 93 betätigbare Niederdrückleiste 95 mit der während des Trennschweißens oder unmittelbar nach dem Trennschweißen der abgetrennte Überstand Ü nach unten ausgelenkt wird, wo er zwischen einer feststehenden Antriebsrolle 96 und einer schwenkbaren Rolle 97 eingeklemmt werden kann. Nach Zurückziehen der Leiste 95 und bei Antreiben der Antriebsrolle 96 kann der Überstand senkrecht zur Transportrichtung nach unten aus dem Transportweg ausgeschleust werden. Auf der Auslaufseite der Quertrennschweißvorrichtung ist eine weitere Rolle 98 der Auslaufrollenbahn 56 erkennbar, die insbesondere, wie früher erwähnt, eine gummierte Oberfläche haben kann, ebenso wie die sich nach rechts anschließenden weiteren Rollen.Immediately in front of the cross-cut welding device on the inlet side, a depressing strip 95 which can be actuated independently of the welding punch 93 is deflected downwards during the separating welding or immediately after the separating welding, where it can be clamped between a fixed drive roller 96 and a pivotable roller 97 , After retraction of the strip 95 and when driving the drive roller 96, the supernatant can be discharged perpendicular to the transport direction down from the transport path. On the outlet side of the cross-cut welding device, a further roller 98 of the outlet roller conveyor 56 can be seen, which in particular, as mentioned earlier, can have a rubberized surface, as well as the further rollers adjoining to the right.

Pfeile geben in allen Figuren die Transportrichtung wieder.Arrows reflect the direction of transport in all figures.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1111
Packstationpacking station
1212
Maschinengestellmachine frame
1313
Abdeckhaubecover
1414
obere Halterungupper bracket
1515
untere Halterunglower bracket
1616
obere Folienrolleupper film roll
1717
untere Folienrollelower film roll
1818
EinlaufförderbadEinlaufförderbad
1919
Einführstationinfeed
2020
rechte Führungsschieneright guide rail
2121
linke Führungsschieneleft guide rail
2222
AuslaufförderbandExit conveyor belt
2323
Schneidwerkzeugcutting tool
2424
LängstrennschweißvorrichtungLongitudinal separation welder
2525
LängstrennschweißvorrichtungLongitudinal separation welder
2626
obere Führungs- und Straffungsmittelupper management and tightening agents
2727
untere Führungs- und Straffungsmittellower management and tightening agents
2828
QuertrennschweißvorrichtungCross cutting welder
2929
Entlüftungsplattevent plate
3030
SpuleKitchen sink
3131
SpuleKitchen sink
3232
Bedienpultcontrol panel
5151
Dreh- und AbschweißstationTurning and welding station
5252
Maschinengestellmachine frame
5353
Abdeckhaubecover
5454
EinlaufrollenbahnFeed roller conveyor
5555
Drehstationturning station
5656
AuslaufrollenbahnOutfeed roller conveyor
5757
Hub- und DrehtischLift and turntable
5858
Hub- und DrehvorrichtungLifting and turning device
5959
Rollenroll
6060
QuertrennschweißvorrichtungCross cutting welder
6161
Durchbruchbreakthrough
6262
Eckecorner
6363
Schrittmotorstepper motor
6464
Hub- und DrehgetriebeLifting and turning gear
6565
Ansaugöffnungsuction
6666
UnterdruckkanalVacuum channel
8181
Ausschleusvorrichtungreject device
8282
Trägercarrier
8383
Parallelogrammgetriebeparallelogram
8484
Stellzylinderactuating cylinder
8585
Rollensatzroller set
8686
Riemenanordnungbelt arrangement
8787
oberer Trumupper strand
8888
Endlosriemenendless belts
8989
Antriebsmotordrive motor
9090
Umlenkanordnungredirecting
9191
Ausschleusvorrichtungreject device
9292
Transportrolletransport roller
9393
Oberstempelupper punch
9494
Unterstempellower punch
9595
NiederdrückleisteDepressing bar
9696
Antriebsrollecapstan
9797
bewegliche Rollemovable role
9898
Transportrolletransport roller
AA
AnlagefluchtlinieSystem alignment
TT
Transportebenetransport plane
KK
Schwenkbereichswivel range

Claims (44)

  1. A process of removing, by welding, protrusions on film bags whose width is predetermined with reference to the direction of transport and which contain pieces of packaged goods of varying size, wherein the packaged goods, with reference to the direction of transport, on the bag inside, closely rest against one longitudinal edge of the film bags and wherein, on the other longitudinal edge of the film bags, there exists a unilateral protrusion of variable width which projects from the individual pieces of packaged goods,
    characterised by the following process stages;
    turning the individual pieces of packaged goods by 90°, so that the previously laterally positioned protrusion, in the direction of transport, points to the front or to the rear;
    continuation of transport of the individual pieces of packaged goods in the previous direction of transport;
    severing the protrusions by transverse severance welding of the film bags in front of or behind the individual pieces of packaged goods.
  2. A process according to claim 1,
    characterised in
    that the operation of turning the individual pieces of packaged goods is effected by lifting and lowering said pieces from and on longitudinal transport means.
  3. A process according to any one of claims 1 or 2,
    characterised in
    that, while turning the individual pieces of packaged goods, the previously laterally positioned protrusion is turned backwards in the direction of transport.
  4. A process according to any one of claims 1 to 3,
    characterised in
    that the protrusions severed in front of or behind the pieces of packaged goods are laterally removed transversely to the direction of transport.
  5. A process according to any one of claims 1 to 3,
    characterised in
    that the protrusions severed in front of or behind the pieces of packaged goods are removed downwardly perpendicularly relative to the direction of transport.
  6. A process according to any one of claims 1 to 5,
    characterised in
    that, prior to the transverse severance welding operation, the longitudinal dimensions and the height of the individual pieces of packaged goods are recorded by contact-free sensor means.
  7. A process according to any one of claims 1 to 6,
    characterised in
    that, prior to the turning operation, the length of the individual pieces of packaged goods is recorded by contact-free sensor means.
  8. A process according to any one of claims 1 to 7,
    characterised in
    that, prior to the second transverse severance welding operation, the length of the individual pieces of packaged goods, excluding the front and rear protrusions, is recorded by contact-free sensor means.
  9. A process of enveloping and welding-in pieces of packageable goods of varying size into film material, including the following process stages;
    wrapping the individual pieces of packageable goods in packaging film, wherein upper and lower film layers rest on the upper side and lower side of the pieces of packageable goods;
    first transverse severance welding of the upper and lower film layers transversely to the direction of transport of said pieces, directly behind the rear end face and in front of the front end face of the individual pieces,
    longitudinal severance welding of the upper and lower film layers on at least one longitudinal side of the individual pieces of packaged goods at a fixed distance from the other longitudinal side of the individual pieces, so that, independently of the size of the individual pieces of packaged goods, there are formed film bags of a predetermined width which are closed on all sides, wherein said pieces, on the inside, closely rest against one longitudinal edge of the film bag and wherein, at the other longitudinal edge of the film bags, there occurs a variably wide unilateral protrusion projecting from the individual pieces;
    turning the individual pieces of packaged goods by 90°, so that the previously laterally positioned protrusion points to the front or rear in the direction of transport;
    continuation of the transport of the individual pieces of packaged goods in the previous direction of transport;
    severing the protrusions by a second transverse severance welding operation carried out on the film bag in front of or behind the individual pieces.
  10. A process according to claim 9,
    characterised in
    that the operation of wrapping the individual pieces of packageable goods is effected by moving same into a film curtain which consists of an upper length of film and a lower length of film which can be pulled off perpendicularly and which opens up transversely to the direction of transport. (Machine welding on four sides).
  11. A process according to claim 9,
    characterised in
    that the operation of wrapping the individual pieces of packageable goods is effected by moving same into an infinite film semi-hose which consists of an upper length of film and a lower length of film, which lengths of film are connected to one another at a longitudinal edge and which extend in the direction of transport. (Forming shoulder machine).
  12. A process according to any one of claims 9 to 11,
    characterised in
    that the operation of turning the individual pieces of packaged goods is effected by lifting and lowering said pieces from and on longitudinal transport means.
  13. A process according to any one of claims 9 to 12,
    characterised in
    that, during the operation of turning the individual pieces of packaged goods, the previously laterally positioned protrusion is turned towards the rear in the direction of transport.
  14. A process according to any one of claims 9 to 13,
    characterised in
    that the protrusions severed from the film bags in front of or behind the pieces of packaged goods are removed towards one side, transversely to the direction of transport.
  15. A process according to any one of claims 9 to 13,
    characterised in
    that the protrusions severed from the film bags in front of or behind the pieces of packaged goods are removed downwardly, perpendicularly to the direction of transport.
  16. A process according to any one of claims 9 to 15,
    characterised in
    that the longitudinal severance welding operation takes place progressively along the longitudinal sides of the pieces of packaged goods, with the film bags continuously being moved.
  17. A process according to any one of claims 9 to 16,
    characterised in
    that, prior to subjecting the film bags to the first transverse severance welding operation behind the pieces of packaged goods, the upper film layer is pressed against the upper side of said pieces.
  18. A process according to any one of claims 9 to 17,
    characterised in
    that, prior to the film bags being welded on all sides, the upper film layer, for pressure compensating purposes, is perforated in the region of the initially lateral protrusion and that, during the final second transverse severance welding operation, for the purpose of severing the protrusion, the perforation is severed from the film bag.
  19. A process according to any one of claims 9 to 18,
    characterised in
    prior the transverse severance welding operation, the longitudinal dimensions and the height of the individual pieces of packaged goods are recorded by contact-free sensor means.
  20. A process according to any one of claims 9 to 19,
    characterised in
    that, prior to the turning operation, the length of the individual pieces of packaged goods is recorded by contact-free sensor means.
  21. A process according to any one of claims 9 to 20,
    characterised in
    that, after the first transverse severance welding operation and after the longitudinal severance welding operation, complete severance of the film bags is tested by contact-free sensor means.
  22. A process according to any one of claims 9 to 21,
    characterised in
    that, prior to the transverse severance welding operation, the length of the individual pieces of packaged goods, excluding the front and rear protrusions, is recorded by contact-free sensor means.
  23. A device for removing, by welding, protrusions at film bags whose width is predetermined with reference to the direction of transport and which contain pieces of packaged goods of variable size,
    characterised by the following features:
    a turning station (55) for turning the individual pieces of packaged goods by 90°;
    a transverse severance welding device (60) for welding and severing a protrusion at a front or rear end face of said pieces, which originally formed a longitudinal side of said pack,
    as well as longitudinal transport means (18, 22, 59, 54, 56) arranged and interlinked linearly.
  24. A device according to claim 23,
    characterised in
    that the turning station (55) comprises a plurality of transport rollers (59) which are arranged in a grid in one plane and which, more particularly, are drivable jointly, and that the turning station comprises a liftable hoisting and turning table (57) which is to be turned by at least 90° and which comprises a plurality of apertures (61) which are arranged in a grid and which, in two rotational positions differing from one another by 90°, can be lowered on to the transport rollers (59) in such a way that they penetrate the apertures (61) with upper roller segments.
  25. A device according to claim 24,
    characterised in
    that the hoisting and turning table (57) is provided with suction openings (65) which are subjected to a vacuum during the lifting and turning operations.
  26. A device according to any one of claims 24 or 25,
    characterised in
    that the transport rollers (59) and the apertures (61) are arranged in a square grid.
  27. A device according to any one of claims 24 to 26,
    characterised in
    that the hoisting and turning table (57) is connected to a stepping motor (63) via a hoisting and turning drive (58).
  28. A device according to anyone of claims 23 to 27,
    characterised in
    that, directly in front of the transverse severance welding device (60), there is provided a pair of infinite belts or roller sets which drivably rotate transversely to the direction of transport and which run on one another in such a way so as to be separatable from one another.
  29. A device according to any one of claims 23 to 27,
    characterised in
    that, directly in front of the transverse severance welding device (60), there is arranged a pair of rollers which separatably run one above the other underneath the transport plane T and whose axes extend transversely to the direction of transport, of which rollers at least one is drivable.
  30. A device according to claim 29,
    characterised in
    that directly in front of the second transverse severance welding device (60), there is provided a high-level movable low-pressure strip for introducing a welded-off protrusion between the rollers which are separated from one another.
  31. A device according to any one of claims 23 to 30,
    characterised in
    that the rollers of a run-out roller track (56) are coated with gum behind the transverse severance welding device (60) for effectively stopping the film bags.
  32. A device for enveloping and welding pieces of packageable goods of variable size in film material, comprising
    means for wrapping the individual pieces of packageable goods in packaging film, so that upper and lower film layers come to rest on the upper sides and lower sides of said pieces;
    a first transverse severance welding device (28) for welding and severing film envelopes at the rear end face and at the front end face of the individual pieces of packaged goods;
    longitudinal severance welding devices (24, 25) for welding film bags and for severing edge strips on at least the longitudinal side of the individual pieces, which devices (24, 25) are arranged at a fixed transverse distance from the opposed longitudinal side of the respective pieces;
    a turning station (55) for turning the individual pieces by 90°;
    a transverse severance welding device (60) for welding and severing a protrusion at a front or rear end face of the pieces, which originally formed a longitudinal side of the pieces;
    as well as longitudinal transport means (18, 22, 59, 54, 56) which are linearly arranged and interlinked relative to one another.
  33. A device according to claim 32,
    characterised in
    that the means used for wrapping purposes comprise a device for producing a vertical film curtain which can be pulled off in the direction of transport and which envelopes the pieces of packageable goods from the front end face. (Machine welding on four sides).
  34. A device according to claim 32,
    characterised in
    that the means used for wrapping purposes comprise a device for producing an infinite film semi-hose which extends in the direction of transport and which envelopes the pieces of packageable goods from a longitudinal side. (Forming shoulder machine).
  35. A device according to any one of claims 32 to 34,
    characterised in
    that the turning station (55) comprises a plurality of transport rollers (59) which are arranged in a grid in one plane and which, more particularly, are drivable jointly, and that the turning station comprises a hoisting and turning table (57) which can be lifted and which can be turned by at least 90° and which comprises a plurality of apertures (61) which are arranged in a grid and which can be lowered on to the transport rollers (59) in two rotational positions which differ from one another by 90° in such a way said transport rollers (59) penetrate the apertures (61) with upper roller segments.
  36. A device according to claim 35,
    characterised in
    that the hoisting and turning table (57) is provided with suction openings (65) which, during the lifting and turning operation, are subjected to vacuum.
  37. A device according to any one of claims 35 or 36,
    characterised in
    that the transport rollers (59) and the apertures (61) are arranged in a square grid.
  38. A device according to any one of claims 35 to 37,
    characterised in
    that the hoisting and turning table (57) is connected by a stepping motor (63) via a hoisting and turning drive (58).
  39. A device according to any one of claims 32 to 38,
    characterised in
    that directly in front of the second transverse severance welding device (60) there is provided a pair of infinite belts or roller sets which rotate so as to be drivable transversely to the direction of transport and which run on one another so as to be separatable from one another.
  40. A device according to any one of claims 32 to 38,
    characterised in
    that, directly in front of the transverse severance welding device (60), there is arranged a pair of rollers which separatably run one above the other underneath the transport plane T and whose axes extend transversely to the direction of transport, of which rollers at least one is drivable.
  41. A device according to claim 40,
    characterised in
    that directly in front of the second transverse severance welding device (60), there is provided a height-adjustable press-down bar for introducing a welded-off protrusion between the rollers which are separated from one another.
  42. A device according to any one of claims 32 to 41,
    characterised in
    that, in the direction of transport, directly behind the first transverse severance welding device (28), there is provided a horizontal, vertically movable pressure plate (ventilation plate) (29) above the film tracks.
  43. A device according to any one of claims 32 to 42,
    characterised in
    that, in the transverse direction, inside the at least one longitudinal severance welding device (24, 25), there are arranged movable means for perforating at least the upper film layer, which device (24, 25), more particularly, is firmly connected to an upper movable transverse beam of the first transverse severance welding device (28).
  44. A device according to any one of claims 32 to 43,
    characterised in
    that the rollers of a run-out roller track (56) are coated with gum behind the second transverse severance welding device (60) for effectively stopping the film bags.
EP07022340A 2006-11-24 2007-11-17 Turning and sealing station for packaged goods of varying size and film packaging machine for packaged goods of varying size Not-in-force EP1925557B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006055989 2006-11-24
DE102006059770A DE102006059770B3 (en) 2006-11-24 2006-12-15 Packaging method for cutting off projecting ends on foil bags by a torch with pieces of packaging of different sizes envelopes the pieces of packaging in foil material by welding them in

Publications (2)

Publication Number Publication Date
EP1925557A1 EP1925557A1 (en) 2008-05-28
EP1925557B1 true EP1925557B1 (en) 2009-09-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07022340A Not-in-force EP1925557B1 (en) 2006-11-24 2007-11-17 Turning and sealing station for packaged goods of varying size and film packaging machine for packaged goods of varying size

Country Status (4)

Country Link
EP (1) EP1925557B1 (en)
AT (1) ATE441587T1 (en)
DE (2) DE102006059770B3 (en)
ES (1) ES2330797T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007020402B4 (en) 2007-04-27 2008-12-11 Beck Packautomaten Gmbh + Co Method and device for expelling separated supernatants of foil bags in a film packaging plant
DE102014208165A1 (en) * 2014-04-30 2015-11-05 Kallfass Verpackungsmaschinen Gmbh Method and device for packaging

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843309A1 (en) * 1988-12-22 1990-06-28 Pavel Wilfried Maschinen Process and machine for packaging horizontal articles of the most diverse types in plastic foils
DE19621205C2 (en) * 1996-05-25 2003-03-13 Beck & Co Packautomaten cut-off
DE102005025706B3 (en) * 2005-05-19 2006-10-05 Beck Packautomaten Gmbh & Co. Machine for closely-fitting, welded repackaging of folded textile returns in various sizes for re-sale, successively welds edges of semi-tubular packaging material during conveying

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DE102006059770B3 (en) 2007-11-22
ATE441587T1 (en) 2009-09-15
EP1925557A1 (en) 2008-05-28
ES2330797T3 (en) 2009-12-15

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