EP0134754B1 - Procédé et dispositif pour l'entraînement des éléments de scellage d'une machine d'emballage - Google Patents

Procédé et dispositif pour l'entraînement des éléments de scellage d'une machine d'emballage Download PDF

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Publication number
EP0134754B1
EP0134754B1 EP84810335A EP84810335A EP0134754B1 EP 0134754 B1 EP0134754 B1 EP 0134754B1 EP 84810335 A EP84810335 A EP 84810335A EP 84810335 A EP84810335 A EP 84810335A EP 0134754 B1 EP0134754 B1 EP 0134754B1
Authority
EP
European Patent Office
Prior art keywords
sealing
drive
gear
lever
transverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84810335A
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German (de)
English (en)
Other versions
EP0134754A2 (fr
EP0134754A3 (en
Inventor
Georg Kopp
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.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
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Filing date
Publication date
Application filed by Schweizerische Industrie Gesellschaft filed Critical Schweizerische Industrie Gesellschaft
Publication of EP0134754A2 publication Critical patent/EP0134754A2/fr
Publication of EP0134754A3 publication Critical patent/EP0134754A3/de
Application granted granted Critical
Publication of EP0134754B1 publication Critical patent/EP0134754B1/fr
Expired legal-status Critical Current

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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
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear

Definitions

  • the present invention relates to a method for driving the sealing elements of a packaging machine according to the preamble of independent patent claim 1 and a device for carrying out the method according to the preamble of patent claim 2.
  • US Pat. No. 4,291,520 provides two separate sealing points for longitudinal seams and transverse seams.
  • the hose is withdrawn by means of a separate conveyor drive.
  • the cross sealing jaws are driven separately and follow the bag on part of the way. If the hose is to be withdrawn intermittently, this has a major influence on the heating power of the longitudinal seal, because the film material is moved unevenly through the sealing point and thus forms differently heated points.
  • the bag lengths can be changed relatively easily by changing the conveying speed of the take-off.
  • the disadvantage is the synchronization of all three parts, namely the control of the longitudinal sealing means, the removal device and the movement of the transverse sealing jaws when the bag length changes.
  • the object of the present invention is accordingly to create a drive for the sealing elements with simple adjustment and change of the bag length.
  • the individually produced, filled bags B are gripped by a pair of pliers 12 and placed on a conveyor belt 13.
  • the band-shaped packaging material V can be divided into two partial webs V1 and V2 in accordance with CH-A 416 434. To simplify the drawing, the supply roll located behind the hopper 1 and the separating knife are not shown. After separation, the two partial webs V1, V2 are brought into opposite webs B1, B2 via a first guide roller 14, a second guide roller 15 and two third guide rollers 16.
  • the strips of the webs B1 and B2 reach the pair of sealing disks 6 away from the guide rollers 8.
  • the hollow mandrel 4 is designed for a specific filling material, as any person skilled in the art should understand. Through the hollow mandrel 4, the filling material measured, for example by weighing, can freely pass from the filling funnel 1a into the bag.
  • Fig. 2 the two webs B1, B2 are indicated as they enter the longitudinal sealing rollers 6.
  • the wrapping of the sealing rollers 6, which is correctly shown in FIG. 1, has been dispensed with.
  • the two sealing rollers 6 are coupled to one another by means of a pair of gearwheels 17, so that they are rotated together but in opposite directions.
  • transverse sealing jaws 9 are only hinted at, the drive for opening and closing the jaws is omitted, in particular because this is not essential for the invention and is known to any person skilled in the art.
  • the axis 20 of the one sealing roller 6 carries in its extension 21 two gear wheels 24, 25 held on freewheel assemblies 22, 23.
  • the freewheel assemblies are also well-known machine elements, such as those used by the Stieber Division of Borg-Warner Corporation be marketed under the name NSS. So that both gears 24, 25 are rigidly coupled in the same direction of rotation according to arrow A with the extension 21 and rotate in the direction of rotation according to arrow B at idle.
  • Two toothed racks 30, 31 are connected in one piece in a fork-like manner to a common carrier 32.
  • a two-armed lever 33 is rotatably hinged at one end.
  • This two-armed lever 33 is rigidly connected approximately centrally to a shaft 34 which is rotatably mounted on the frame of the packaging machine.
  • a connecting rod 36 of an eccentric drive 37 is articulated.
  • the carrier 32 is guided in a guide block 38 for a translatory back and forth movement.
  • a gear 25 meshes directly with one rack 31 and the other gear 24 is in engagement with the other rack 30 via a freewheel gear 26.
  • a movement of the toothed rack 30 in the direction of arrow C causes a working rotation of the toothed wheel 24 in the direction of arrow A.
  • arrow D of the toothed rack 30 turns the gear 24 freely.
  • the arrows for directions of rotation which do not cause the sealing rollers 6 to rotate that is to say the arrows B, D, E, are shown as empty triangles.
  • This arrangement thus brings about a two-stage rotation of the sealing rollers 6, namely a first stage when moving in the direction of arrow C and a second stage when moving in the direction of arrow F.
  • the transverse sealing jaws 9 are connected to the shaft 34 via a lever arm 39, so that the movement of the eccentric drive 37 is transmitted to the shaft 34.
  • the transverse sealing jaws 9 execute a reciprocating movement.
  • the stroke of the transverse sealing jaws 9 is approximately the same as the stroke of the toothed racks, so that the feed of the bags can be adjusted to approximately twice the stroke of the transverse sealing jaws.
  • the eccentric drive 37 consists of a pulley 40, which is driven by a drive belt 41 from a motor, not shown. To change the bag length, only the stroke of the eccentric drive 37 needs to be adjusted. For this purpose, a radial slot 42 (FIG. 3) can be provided in the pulley 40, so that the point of application of the connecting rod 36 can be changed radially by means of screw 43 and nut 44.
  • Markings 51 on the bags can be monitored by means of a light barrier 50.
  • An electromagnet 52 is actuated via an amplifier (not shown) and possible further electronic control means, which are also well known, and its armature 53 supports a scanning lever 54.
  • This scanning lever 54 is biased by a spring 55 against a cam disk 56 which is rigidly connected to the pulley 40 by means of a shaft 58. If the light barrier does not emit a signal from a marking 51, the scanning lever 54 is released and a plunger 57, which carries the freewheel gear 26, pulls it downwards. Thus, the gear 24 is rotated by a small amount in the direction of arrow A and the marker 51 is pushed down the corresponding distance. This process can be repeated with each rotation of the pulley 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Making Paper Articles (AREA)

Claims (10)

1. Procédé pour l'entraînement des éléments de scellage d'une machine à emballer pour la fabrication continue de sachets remplis, caractérisé en ce que les cylindres de scellage (6) pour la formation de joints de scellage longitudinaux sont entraînés en rotation dans le même sens par pas égaux, correspondant chacun à une demi-longueur de sachet, en ce que les mâchoires de scellage transversal (9) pour la formation de joints transversaux effectuent chaque fois, dans le même temps que celui qui est nécessaire pour les deux pas des cylindres de scellage (6), une course de scellage et une course de retour, en ce que les mâchoires de scellage transversal (9) sont appliquées l'une contre l'autre, au moins approximativement pendant toute la course de scellage, et en ce que pour modifier la longueur des sachets, la course de scellage et l'angle de rotation des cylindres de scellage correspondant à chaque demi-longueur de sachet sont modifiés dans le même rapport.
2. Dispositif pour l'exécution du procédé selon la revendication 1, caractérisé par un mécanisme de commande commun (37) pour le mouvement de va-et-vient des mâchoires de scellage transversal (9) et le mouvement de rotation des cylindres de scellage (6), au moyen d'une paire de crémaillères (30, 31) qui sont raccordées à un levier d'entraînement (33, 39) pour les mâchoires de scellage transversal (9) et qui coopèrent en sens inverse avec des roues dentées (24, 25) qui agissent, avec un élément à roue libre (22, 23), sur un arbre d'entraînement commun (20, 21) pour les cylindres de scellage longitudinal (6), et en ce que pour la rotation dans le même sens de l'arbre d'entraînement (20, 21) par la paire de crémaillères (30, 31) effectuant ensemble un mouvement de va-et-vient avec les mâchoires de scellage transversal (9), une roue dentée intermédiaire (26) est prévue entre l'une (30) des crémaillères et la roue dentée (24) qui lui est associée, tandis que l'autre crémaillère (31) est en prise directe avec la seconde roue dentée d'entraînement (25), afin que les deux roues dentées (24, 25) fassent toujours tourner l'arbre d'entraînement (20, 21) dans le même sens avec le mouvement de va-et-vient des crémaillères.
3. Dispositif selon la revendication 2, caractérisé en ce que le mécanisme de commande (37) pour le mouvement de va-et-vient de la paire de crémaillères (30, 31) est un mécanisme de commande à manivelle (36, 40, 41, 42, 43, 44).
4. Dispositif selon la revendication 3, caractérisé en ce que le tourillon de manivelle (43, 44) du mécanisme de commande' à manivelle (37) est réalisé sous forme réglable radialement.
5. Dispositif selon l'une quelconque des revendications 2 à 4, caractérisé en ce que la bielle (36) est articulée sur une extrémité (35') d'un levier à deux bras (33), en ce que le levier (33) est monté à rotation, au moins approximativement en son milieu, et en ce que la paire de crémaillères (30, 31) est articulée sur l'autre extrémité (35).
6. Dispositif selon la revendication 5, caractérisé en ce que le montage à rotation du levier (33) est effectué au moyen d'un arbre rotatif (34) qui sert d'organe de transmission de mouvement à un bras porteur (39) pour les mâchoires de scellage transversal (9).
7. Dispositif selon la revendication 2, caractérisé en ce que la roue dentée à roue libre (26) est montée à rotation sur un coulisseau (57) et en ce que le coulisseau (57) ést accouplé à un mécanisme de commande (52, 53, 54, 55, 56) qui peut être actionné à volonté.
8. Dispositif selon la revendication 7, caractérisé en ce que le mécanisme de commande actionnable à volonté est un disque à came (56) avec un levier d'exploration (54).
9. Dispositif selon la revendication 8, caractérisé en ce que le disque à came (56) est raccordé rigidement au mécanisme de commande à manivelle (37) et en ce qu'il est prévu, pour son actionnement à volonté, une armature d'aimant (53) qui maintient le levier d'exploration (54) en position inactive.
10. Dispositif selon la revendication 9, caractérisé en ce qu'il est prévu un appareil de commande photoélectrique (50) qui peut être réglé sur des repères (51) sur les sachets en vue de l'actionnement de l'armature d'aimant (53).
EP84810335A 1983-07-29 1984-07-06 Procédé et dispositif pour l'entraînement des éléments de scellage d'une machine d'emballage Expired EP0134754B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4177/83A CH660864A5 (de) 1983-07-29 1983-07-29 Verfahren und vorrichtung zum antrieb der siegelelemente einer verpackungsmaschine.
CH4177/83 1983-07-29

Publications (3)

Publication Number Publication Date
EP0134754A2 EP0134754A2 (fr) 1985-03-20
EP0134754A3 EP0134754A3 (en) 1986-02-12
EP0134754B1 true EP0134754B1 (fr) 1988-05-25

Family

ID=4271232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810335A Expired EP0134754B1 (fr) 1983-07-29 1984-07-06 Procédé et dispositif pour l'entraînement des éléments de scellage d'une machine d'emballage

Country Status (5)

Country Link
US (1) US4599850A (fr)
EP (1) EP0134754B1 (fr)
JP (1) JPS6034316A (fr)
CH (1) CH660864A5 (fr)
DE (1) DE3471461D1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6382703U (fr) * 1987-03-30 1988-05-31
US5062253A (en) * 1989-01-31 1991-11-05 Kliklok Corporation Combined film feeding stripping and sealing for bag forming and method
US4996825A (en) * 1989-01-31 1991-03-05 Kliklok Corporation Combined blousing, stripping and sealing for bag forming and method
US5440860A (en) * 1989-06-05 1995-08-15 Schreiber Foods, Inc. Method and apparatus for forming and hermetically sealing slices of food items
NZ245005A (en) * 1992-02-28 1994-12-22 Schreiber Foods Inc Food packaging apparatus, method and product: flattened tube and food contents transversely sealed by sequential pressing, heating and pressing
US5533322A (en) * 1994-03-11 1996-07-09 Kliklok Corporation Continuous vertical form-fill-seal packaging machine with constant motion carriage
US5540035A (en) * 1994-12-07 1996-07-30 Kliklok Corporation Continuous vertical form-fill-seal packaging machine with synchronized product clamp
JP3857363B2 (ja) * 1996-09-17 2006-12-13 四国化工機株式会社 充填包装装置
US6217273B1 (en) 1997-08-04 2001-04-17 Exper S.A.S. Di Peroni G.&C. Method and apparatus for transferring objects
US5893260A (en) * 1997-09-24 1999-04-13 Mckenna; Mark Portable apparatus for forming and filling sandbags
US6265002B1 (en) 1998-12-18 2001-07-24 Kustner Industries S.A. Non-hermetic seal for individually wrapped food items
EP1167208A1 (fr) * 2000-06-30 2002-01-02 O-Mega Packaging AG Dispositif de fermeture pour les mâchoires de fermeture d' une machine d' emballage en sachets
IT1399865B1 (it) * 2010-05-11 2013-05-09 Macchine Patelli Di Ferruccio Patelli Metodo e dispositivo di trazione e saldatura-recisione per macchine formatrici riempitrici di sacchetti in materiale termosaldabile.
US10988293B2 (en) * 2011-03-17 2021-04-27 The Jel Sert Company Flexible tubular package for edible product
CN103183157B (zh) * 2011-12-31 2016-10-05 纷美(北京)贸易有限公司 灌装机横封传动装置
EP3141488B1 (fr) * 2015-09-09 2020-04-22 Tetra Laval Holdings & Finance S.A. Machine d'emballage de production d'emballages à partir d'une feuille de matériau d'emballage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH292941A (fr) * 1949-12-17 1953-08-31 Inc Sterling Drug Appareil destiné à façonner et à récipients.
US2982066A (en) * 1956-06-25 1961-05-02 Roto Wrap Machine Company Packaging apparatus
US3074214A (en) * 1959-06-05 1963-01-22 Procter & Gamble Rotary type packaging machine
FR1309682A (fr) * 1962-01-05 1962-11-16 Otto Hansel Junior G M B H Machine d'ensachage
CH416434A (de) * 1964-11-27 1966-06-30 Sig Schweiz Industrieges Vorrichtung an einer Verpackungsmaschine, zum Bilden von Verpackungsbeuteln
US3776804A (en) * 1971-06-10 1973-12-04 Schjeldahl Co G T Intermittent drive mechanism

Also Published As

Publication number Publication date
JPS6034316A (ja) 1985-02-21
US4599850A (en) 1986-07-15
DE3471461D1 (en) 1988-06-30
CH660864A5 (de) 1987-05-29
EP0134754A2 (fr) 1985-03-20
EP0134754A3 (en) 1986-02-12

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