DE19812359A1 - Transverse welder for tubular film to seal and cut off containers after filling - Google Patents

Transverse welder for tubular film to seal and cut off containers after filling

Info

Publication number
DE19812359A1
DE19812359A1 DE19812359A DE19812359A DE19812359A1 DE 19812359 A1 DE19812359 A1 DE 19812359A1 DE 19812359 A DE19812359 A DE 19812359A DE 19812359 A DE19812359 A DE 19812359A DE 19812359 A1 DE19812359 A1 DE 19812359A1
Authority
DE
Germany
Prior art keywords
film tube
product retainer
arm
filling
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19812359A
Other languages
German (de)
Inventor
Roman Dr Kammler
Gerhard Kuss
Walter Maurer
Walter Dr Baur
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.)
Rovema GmbH
Original Assignee
Rovema GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rovema GmbH filed Critical Rovema GmbH
Priority to DE19812359A priority Critical patent/DE19812359A1/en
Priority to EP98111275A priority patent/EP0897868A1/en
Publication of DE19812359A1 publication Critical patent/DE19812359A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

Tubular film (2) is sealed transversely to its transport direction (3) by jaws (4) and cut off by a cutting device (12). The contents are supplied through a filler tube (16) and held back by retainers (20). Jaws (4) and retainers (20) are supported on spring-loaded rotating telescopic arms (6,56) so that they move in D-shaped paths (8) to open and close. Their motions is coupled together by a belt (51).

Description

Die Erfindung betrifft eine Vorrichtung zum Verschweißen eines Folienschlauches quer zu seiner Transportrichtung, mit zwei um jeweils eine Achse entgegengesetzt umlaufenden Quersiegelbacken eines Backenstocks, einer Trenneinrichtung an einer Quersiegelbacke zum Durchtrennen des Folienschlauches zwischen jeweils einer Kopfnaht eines Beutels und einer Bodennaht eines nachfolgenden Beutels, einem Füllrohr zum Aufnehmen und Befüllen des Folienschlauches, einer gegen den Folienschlauch wirkenden Folientransporteinrichtung, sowie einem Produktrückhalter mit gegeneinander und gegen den Folienschlauch beweglichen Rückhalteelementen oberhalb der Quersiegelbacken.The invention relates to a device for welding a film tube across to its direction of transport, with two opposite each other around an axis circumferential cross sealing jaws of a cheek stock, a separating device on a Cross sealing jaw for cutting the film tube between each Top seam of a bag and a bottom seam of a subsequent bag, one Filling tube for receiving and filling the film tube, one against the Foil tube acting film transport device, as well as a product retainer with retaining elements movable against each other and against the film tube above the cross sealing jaws.

Bei einer bekannten Vorrichtung dient ein an einem umlaufenden Band befestigter Produktrückhalter dazu, eine in den Folienschlauch gefüllte Produktportion zurückzuhalten, so daß sie nicht nach unten fällt, bevor die Quersiegelbacken geschlossen sind, um den Folienschlauch quer zu verschweißen. Auf diese Weise wird verhindert, daß Produkt in eine Quernaht gelangt und dort zu einer undichten Stelle führt.In a known device, one attached to a circulating belt is used Product retainer, a portion of the product filled in the film tube hold back so that it does not fall down before the cross sealing jaws are closed in order to weld the film tube transversely. That way prevents product from getting into a transverse seam and leaking there leads.

Die bekannte Vorrichtung hat den Nachteil, daß der technische Aufwand für die Realisierung des Produktrückhalters relativ groß ist. Das geschlossene Band muß aufwendig geführt werden. Zudem kann das Band nach längerer Betriebsdauer eine ungewünschte Längendehnung erfahren, was zu einem ungenauen Rückhalten führt.The known device has the disadvantage that the technical effort for Realization of the product retainer is relatively large. The closed band must be carried out extensively. In addition, the belt can become damaged after a long period of operation experience undesired elongation, which leads to inaccurate retention.

Der Erfindung liegt die Aufgabe zu Grunde, bei einer Vorrichtung der eingangs beschriebenen Art den technischen Aufwand für den Produktrückhalter zu verringern, wobei dieser auch nach längerer Betriebsdauer sehr genau positionierbar ist.The invention is based on the object in a device of the beginning described way of reducing the technical effort for the product retainer, which can be positioned very precisely even after a long period of operation.

Gelöst ist die Aufgabe gemäß dem kennzeichnenden Teil des Anspruchs 1. Danach weist der Produktrückhalter zwei gegenläufig an jeweils einem Arm um jeweils eine Achse rotierende Rückhalteelemente auf, und als Arm des Rückhalteelementes ist ein Teleskoparm vorgesehen, der mittels einer Feder radial zu seiner Achse rückstellbar ist.The problem is solved according to the characterizing part of claim 1. After that the product retainer has two in opposite directions on one arm each by one Axial rotating retaining elements, and as arm of the retaining element is a Telescopic arm provided, which can be reset radially to its axis by means of a spring is.

Die Erfindung hat den Vorteil, daß der technische Aufwand für den Produktrückhalter verringert ist und der Produktrückhalter auch längerer Betriebsdauer sehr genau positionierbar ist. The invention has the advantage that the technical effort for the product retainer is reduced and the product retainer is very accurate even over a longer service life is positionable.  

Der Teleskoparm erlaubt eine selbsttätige Anpassung des Produktrückhalters von gegenüberliegenden Seiten an den Folienschlauch und ein sicheres Rückhalten von im Folienschlauch befindlichem Produkt oberhalb der Quersiegelbacken. Während ihrer Abwärtsbewegung stauchen sich die Teleskoparme und passen sich den kleiner werdenden Abständen zwischen dem Folienschlauch und den Achsen an. Nach dem Rückhaltevorgang strecken sich die Teleskoparme, um den nächsten Rückhafte­ vorgang möglichst frühzeitig beginnen zu können. Durch diesen frühen Rück­ haltezeitpunkt kann eine neue Produktportion früher als bei den bisher bekannten Produktrückhaltern in den Folienschlauch geworfen werden, wodurch der Produkt­ abwurf weniger als bisher der limitierende Faktor für die Verpackungsgeschwindigkeit ist, und die Verpackungsgeschwindigkeit kann erhöht werden.The telescopic arm allows the product retainer to be automatically adjusted opposite sides of the film tube and secure retention of im Foil tube product above the cross sealing jaws. During their Downward movement compress the telescopic arms and adapt to the smaller ones distances between the film tube and the axles. After this Restraining process, the telescopic arms stretch to the next detainee to be able to start the process as early as possible. Through this early return A new product portion can stop earlier than with the previously known ones Product retainers are thrown into the film tube, causing the product discard less than before the limiting factor for packaging speed and the packaging speed can be increased.

Ist der Produktrückhalter über ein Koppelglied derart mit dem Backenstock verbunden, daß eine Rotationsbewegung des Backenstocks den Produktrückhalter öffnet und schließt (Anspruch 2) so entfällt ein separater Antrieb für den Produktrückhalter, da die Rotationsbewegung des Backenstocks den Produktrückhalter betätigt. Ein weiterer Vorteil besteht darin, daß der Produktrückhalter dabei synchron zum Backenstock bewegt wird.If the product retainer is connected to the cheek stock via a coupling link, that a rotational movement of the cheek block opens the product retainer and closes (claim 2) so there is no separate drive for the product retainer, because the Rotational movement of the cheek block actuates the product retainer. Another The advantage is that the product retainer is synchronized with the baking stick is moved.

Im folgenden wird die Erfindung an Hand von Figuren näher beschrieben. Es zeigt:The invention is described in more detail below with reference to figures. It shows:

Fig. 1 in einer Seitenansicht ein Ausführungsbeispiel der Erfindung, wobei ein teleskopartiger Produktrückhalter über einen um zwei Scheiben umlaufenden Riemen mit den Quersiegelbacken mitbewegt wird, sowie Fig. 1 is a side view of an embodiment of the invention, wherein a telescopic product retainer is moved with the cross-sealing jaws via a belt rotating around two discs, and

Fig. 2 in einem Schnitt entlang B-B der Fig. 1 den Gegenstand der Fig. 1. Fig. 2 shows a section along BB of Fig. 1 the subject of FIG. 1.

Bei einer Vorrichtung 1 zum Verschweißen eines Folienschlauches 2 quer zu seiner Transportrichtung 3 laufen zwei Quersiegelbacken 4 entgegengesetzt zueinander um jeweils eine Achse 5 um. Die Quersiegelbacken 4 sind über jeweils eine Teleskopverbindung 6 gehalten. Die Teleskopverbindungen 6 weisen eine Feder 7 auf, die eine Längenänderung der Teleskopverbindung 6 während ihres kontinuierlichen Umlaufs erlaubt. Jede Quersiegelbacke 4 beschreibt eine D-förmige Bahn 8. Entlang des geraden Abschnitts 9 der Bahnen 8 erfolgt eine Verschweißung des bewegten Folienschlauches 2. In a device 1 for welding a film tube 2 transversely to its transport direction 3 , two cross-sealing jaws 4 run counter to one another around an axis 5 . The cross sealing jaws 4 are each held by a telescopic connection 6 . The telescopic connections 6 have a spring 7 , which allows a change in length of the telescopic connection 6 during its continuous rotation. Each cross sealing jaw 4 describes a D-shaped path 8 . The moving film tube 2 is welded along the straight section 9 of the webs 8 .

Die Quersiegelbacken 4 des Backenstocks 10 laufen infolge eines ineinander Eingreifens mit ihnen verbundener Zahnräder 11 in zueinander entgegengesetzter Richtung um.The transverse sealing jaws 4 of the cheek block 10 run in the opposite direction to one another as a result of an engagement of gears 11 connected to them.

In einer Quersiegelbacke 4 ist eine Trenneinrichtung 12 zum Durchtrennen des Folienschlauches 2 zwischen jeweils einer Kopfnaht 13 eines Beutels 14 und einer Bodennaht 15 eines nachfolgenden Beutels vorgesehen.In a cross sealing jaw 4 , a separating device 12 is provided for severing the film tube 2 between a head seam 13 of a bag 14 and a bottom seam 15 of a subsequent bag.

Ein Füllrohr 16 dient der Aufnahme und dem Befüllen des Folienschlauches 2. Der Weitertransport des Folienschlauches 2 geschieht mittels einer gegen den Folienschlauch 2 und das Füllrohr 16 wirkenden (nicht dargestellten) Folientransport­ einrichtung.A filling tube 16 serves to hold and fill the film tube 2 . The further transport of the film tube 2 takes place by means of a film transport device (not shown) acting against the film tube 2 and the filling tube 16 .

Oberhalb der Quersiegelbacken 4 ist ein Produktrückhalter 18 mit gegeneinander und gegen den Folienschlauch 2 beweglichen Rückhalteelementen 20 vorgesehen.Above the transverse sealing jaws 4 , a product retainer 18 is provided with retaining elements 20 that are movable relative to one another and against the film tube 2 .

Der Produktrückhalter 18 ist über ein Koppelglied 21 derart mit dem Backenstock 10 verbunden, daß die Rotationsbewegung des Backenstocks 10 den Produktrückhalter 18 öffnet und schließt.The product retainer 18 is connected to the jaw stock 10 via a coupling member 21 in such a way that the rotational movement of the jaw stock 10 opens and closes the product retainer 18 .

Der Produktrückhalter 18 führt ebenso wie die Quersiegelbacken 4 D-Kurven aus und ist damit in seinem Produktrückhalteverhalten derart gut an die Backenbewegung angepaßt, daß er zeitgenau mit der Backenbewegung seine Rückhaltefunktion erfüllt. Der Produktrückhalter 18 kann während eines kontinuierlichen Weitertransports des Folienschlauches 2 eingesetzt werden, wodurch eine sehr große Verpackungsge­ schwindigkeit erzielbar ist. Der Produktrückhalter 18 verhindert, daß zu verpackendes Produkt zu früh eine noch warme Bodennaht 15 erreicht.The product retainer 18 , like the transverse sealing jaws, executes 4- D curves and its product retention behavior is so well adapted to the jaw movement that it fulfills its retention function precisely with the jaw movement. The product retainer 18 can be used during a continuous transport of the film tube 2 , whereby a very high speed packaging can be achieved. The product retainer 18 prevents the product to be packaged from reaching a warm bottom seam 15 too early.

Der Produktrückhalter 18 weist zwei gegenläufig um jeweils eine Achse 50 rotierende Rückhalteelemente 20 auf. Die Gegenläufigkeit der Rückhalteelemente 20 wird analog zur Gegenläufigkeit der Quersiegelbacken 4 durch ineinandergreifende Zahnräder 11 erreicht. Als Koppelglied 21 zwischen der Quersiegelbackenbewegung und der Bewegung der Rückhalteelemente 20 ist ein geschlossener Riemen 51, der einerseits um eine mit einem Arm 52 einer Quersiegelbacke 4 starr verbundene Scheibe 53 umläuft, und andererseits um eine Scheibe 54 gleichen Durchmessers, welche starr mit einem Arm 55 eines Rückhalteelementes 20 verbunden ist. Der Arm 55 des Rückhalte­ elementes 20 ist ein Teleskoparm 56, der mittels einer Feder 57 radial zu seiner Achse 50 rückstellbar ist.The product retainer 18 has two retaining elements 20 rotating in opposite directions about an axis 50 . The counter-rotation of the retaining elements 20 is achieved analogously to the counter-rotation of the cross sealing jaws 4 by meshing gear wheels 11 . A coupling belt 21 between the transverse sealing jaw movement and the movement of the retaining elements 20 is a closed belt 51 , which rotates on the one hand around a pulley 53 rigidly connected to an arm 52 of a transverse sealing jaw 4 , and on the other hand around a pulley 54 of the same diameter, which is rigid with an arm 55 a retaining element 20 is connected. The arm 55 of the retaining element 20 is a telescopic arm 56 which can be reset radially to its axis 50 by means of a spring 57 .

Als Rückhalteelement 20 kann eine Stange aus einem deformierbaren Material 61 vorgesehen sein. Dadurch schließt der Produktrückhalter 18 wesentlich sicherer und unabhängiger von allen Fertigungsgenauigkeiten, als wenn das Material nicht deformierbar wäre. Die Stangen sind nicht um ihre Längsachse drehbar, wodurch sie eingeklemmten Folienschlauch 2 nicht durchrollen lassen, und ihre Rückhaltefunktion sicherer ausüben. Nicht drehbare Stangen während ihrer Rückhaltefunktion sind auch erreicht, wenn sie einen eckigen Querschnitt aufweisen. A rod made of a deformable material 61 can be provided as the retaining element 20 . As a result, the product retainer 18 closes much more reliably and independently of all manufacturing accuracies than if the material were not deformable. The rods cannot be rotated about their longitudinal axis, as a result of which they do not allow pinched film tube 2 to roll through, and they perform their restraining function more reliably. Non-rotatable rods during their retention function are also achieved if they have an angular cross section.

BezugszeichenlisteReference list

11

Vorrichtung
contraption

22nd

Folienschlauch
Foil tube

33rd

Transportrichtung
Direction of transport

44th

Quersiegelbacke
Cross sealing jaw

55

Achse
axis

66

Teleskopverbindung
Telescopic connection

77

Feder
feather

88th

D-förmige Bahn
D-shaped track

99

gerader Abschnitt
straight section

1010th

Backenstock
Baking stick

1111

Zahnrad
gear

1212th

Trenneinrichtung
Separator

1313

Kopfnaht
Head seam

1414

Beutel
bag

1515

Bodennaht
Bottom seam

1616

Füllrohr
Filling pipe

1818th

Produktrückhalter
Product retainer

2020th

Rückhalteelement
Retention element

2121

Koppelglied
Coupling link

5050

Achse
axis

5151

Riemen
belt

5252

Arm
poor

5353

, ,

5454

Scheibe
disc

5555

Arm
poor

5656

Teleskoparm
Telescopic arm

5757

Feder
feather

Claims (3)

1. Vorrichtung zum Verschweißen eines Folienschlauches quer zu seiner Transport­ richtung, mit zwei um jeweils eine Achse entgegengesetzt umlaufenden Quersiegelbacken eines Backenstocks, einer Trenneinrichtung an einer Quersiegelbacke zum Durchtrennen des Folienschlauches zwischen jeweils einer Kopfnaht eines Beutels und einer Bodennaht eines nachfolgenden Beutels, einem Füllrohr zum Aufnehmen und Befüllen des Folienschlauches, einer gegen den Folienschlauch wirkenden Folientransporteinrichtung, sowie einem Produktrück­ halter mit gegeneinander und gegen den Folienschlauch beweglichen Rückhalte­ elementen oberhalb der Quersiegelbacken, dadurch gekennzeichnet, daß der Produktrückhalter (18) zwei gegenläufig an jeweils einem Arm (55) um jeweils eine Achse (50) rotierende Rückhalteelemente (20) aufweist, und daß als Arm (55) des Rückhalteelementes (20) ein Teleskoparm (56) vorgesehen ist, der mittels einer Feder (57) radial zu seiner Achse (58) rückstellbar ist.1.Device for welding a film tube transversely to its transport direction, with two cross-sealing jaws of a cheek block, each rotating in opposite directions about an axis, a separating device on a cross-sealing jaw for severing the film tube between a head seam of a bag and a bottom seam of a subsequent bag, a filling tube for Picking up and filling the film tube, a film transport device acting against the film tube, and a product retainer with retaining elements movable against one another and against the film tube above the transverse sealing jaws, characterized in that the product retainer ( 18 ) has two opposing arms ( 55 ) each around an axis ( 50 ) has rotating retaining elements ( 20 ), and that as arm ( 55 ) of the retaining element ( 20 ) a telescopic arm ( 56 ) is provided which can be reset radially to its axis ( 58 ) by means of a spring ( 57 ) . 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Produktrückhalter (18) über ein Koppelglied (21) derart mit dem Backenstock (10) verbunden ist, daß eine Rotationsbewegung des Backenstocks (10) den Produktrückhalter (18) öffnet und schließt.2. Device according to claim 1, characterized in that the product retainer ( 18 ) via a coupling member ( 21 ) is connected to the cheek stick ( 10 ) in such a way that a rotational movement of the cheek stick ( 10 ) opens and closes the product retainer ( 18 ). 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Koppelglied (21) ein geschlossener Riemen (51) ist, der einerseits um eine mit einem Arm (52) einer Quersiegelbacke (4) starr verbundene Scheibe (53) umläuft, und andererseits um eine Scheibe (54) gleichen Durchmessers, welche starr mit einem Arm (55) eines Rückhalteelements (20) verbunden ist.3. Apparatus according to claim 1, characterized in that the coupling member ( 21 ) is a closed belt ( 51 ) which, on the one hand, rotates around a disk ( 53 ) rigidly connected to an arm ( 52 ) of a transverse sealing jaw ( 4 ), and on the other hand a disc ( 54 ) of the same diameter, which is rigidly connected to an arm ( 55 ) of a retaining element ( 20 ).
DE19812359A 1997-08-16 1998-03-20 Transverse welder for tubular film to seal and cut off containers after filling Withdrawn DE19812359A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19812359A DE19812359A1 (en) 1997-08-16 1998-03-20 Transverse welder for tubular film to seal and cut off containers after filling
EP98111275A EP0897868A1 (en) 1997-08-16 1998-06-18 Apparatus for transversally sealing a tubular web

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19735705 1997-08-16
DE19812359A DE19812359A1 (en) 1997-08-16 1998-03-20 Transverse welder for tubular film to seal and cut off containers after filling

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DE19803876A Withdrawn DE19803876A1 (en) 1997-08-16 1998-01-31 Appliance for welding tubular sheeting, with two sealing jaws
DE19812359A Withdrawn DE19812359A1 (en) 1997-08-16 1998-03-20 Transverse welder for tubular film to seal and cut off containers after filling

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DE19803876A Withdrawn DE19803876A1 (en) 1997-08-16 1998-01-31 Appliance for welding tubular sheeting, with two sealing jaws

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DE102020208644B4 (en) 2020-07-09 2023-03-02 Wolf Verpackungsmaschinen Gmbh Device and method for arranging products in the area of a transverse sealing device of a tubular bag packaging machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786112A1 (en) * 1967-08-21 1971-11-18 Econ O Line Mfg Co Sealing machine for the production of consecutive, separate, transversely running weld seams between the layers of a multi-layer web in a packaging machine
DE4005078A1 (en) * 1990-02-17 1991-08-29 Rovema Gmbh DEVICE FOR PRODUCING, FILLING AND SEALING BAGS FROM A HEAT-SEALABLE TAPE
US5377474A (en) * 1992-10-30 1995-01-03 Hayssen Manufacturing Company Form-fill-seal packaging apparatus
DE19620560A1 (en) * 1996-05-22 1997-11-27 Natec Reich Summer Gmbh Co Kg Method and device for heat sealing film tubes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1179494B (en) * 1961-01-26 1964-10-08 Forgrove Mach Machine for packing loose pieces or other bulk goods
US4532753A (en) * 1983-02-18 1985-08-06 Hayssen Manufacturing Company Method of and apparatus for forming, filling and sealing packages
DE4425207B4 (en) * 1994-07-16 2006-06-08 Rovema - Verpackungsmaschinen Gmbh Fill and seal machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786112A1 (en) * 1967-08-21 1971-11-18 Econ O Line Mfg Co Sealing machine for the production of consecutive, separate, transversely running weld seams between the layers of a multi-layer web in a packaging machine
DE4005078A1 (en) * 1990-02-17 1991-08-29 Rovema Gmbh DEVICE FOR PRODUCING, FILLING AND SEALING BAGS FROM A HEAT-SEALABLE TAPE
US5377474A (en) * 1992-10-30 1995-01-03 Hayssen Manufacturing Company Form-fill-seal packaging apparatus
DE19620560A1 (en) * 1996-05-22 1997-11-27 Natec Reich Summer Gmbh Co Kg Method and device for heat sealing film tubes

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