GB2219550A - Heat sealing pouches - Google Patents

Heat sealing pouches Download PDF

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Publication number
GB2219550A
GB2219550A GB8813531A GB8813531A GB2219550A GB 2219550 A GB2219550 A GB 2219550A GB 8813531 A GB8813531 A GB 8813531A GB 8813531 A GB8813531 A GB 8813531A GB 2219550 A GB2219550 A GB 2219550A
Authority
GB
United Kingdom
Prior art keywords
pouch
heat
belt portions
mouth
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8813531A
Other versions
GB2219550B (en
GB8813531D0 (en
Inventor
Hiroshi Moribe
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.)
Seal Industrial Co Ltd
Original Assignee
Seal Industrial Co Ltd
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 Seal Industrial Co Ltd filed Critical Seal Industrial Co Ltd
Priority to GB8813531A priority Critical patent/GB2219550B/en
Publication of GB8813531D0 publication Critical patent/GB8813531D0/en
Publication of GB2219550A publication Critical patent/GB2219550A/en
Application granted granted Critical
Publication of GB2219550B publication Critical patent/GB2219550B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • B29C66/306—Applying a mark during joining
    • B29C66/3062—Applying a mark during joining in the form of letters or numbers
    • B29C66/30621—Applying a mark during joining in the form of letters or numbers in the form of letters
    • 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
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • 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
    • 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
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B29C66/83423—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • 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
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • 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
    • 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
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • 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
    • B65B51/18—Applying or generating heat or pressure or combinations thereof by endless bands or chains

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)

Abstract

A pouch is fed sandwiched between a pair of endless belts 1a, 1b. A pair of heat sealers 8a 8b are arranged inside of the inner belt portions of the endless belts, and are adapted to reciprocate at the same speed as the belts. The heat sealers are kept (cammed) away from each other while they are moving in the opposite direction as the belt portions. They are pressed (by springs 16) toward each other while they are moving in the same direction to the belt portions to seal the mouth of the pouch. <IMAGE>

Description

APPARATUS FOR HEAT-SEALING THE MOUTH OF A POUCH The present invention relates to an apparatus for heatsealing the mouth of a pouch made of a synthetic resin.
Fig. 7 schematically shows a prior art apparatus for heat-sealing the mouth of a pouch of a synthetic resin which comprises driving rollers 51 and driven rollers 52, a pair of endless belts 54a and 54b passed around the upper pair of the driving and driven rollers and the lower pair, respectively, so as to run side by side in the same direction at their inner portions a and b, and a pair of hot plates 55a and 55b, a pair of pressure rollers 56a and 56b and a pair of cooling plates 57a and 57b which are oppositely arranged at both sides of the belt portions a and b in this order in the direction of travel of the belts (Japanese Unexamined Utility Model Publication No. 60-9621).
In heat-sealing the mouth of a pouch with this apparatus, the mouth of a pouch is inserted between the opposed belt portions a and b with the hot plates 55a and 55b turned on and the cooling plates 57a and 57b kept cool by a fan. The mouth of the pouch carried by the belts is half-melted while running between the hot plates 55a and 55b so as to be heat-sealed while passing through the pressure rollers 56a and 56b and subsequently to be cooled down while passing between the cooling plates 57a and 57b.
In view of a recent growing tendency in the industry to use a pouch coated with a smaller amount of polyethlene in order to cut down its cost, the method of pressing the halfmolten mouth of a pouch with the pressure rollers cannot provide a perfect seal.
It is an object of the present invention to provide an apparatus for heat-sealing the mouth of a pouch which obviates the abovesaid shortcomings and which offers a perfect seal at the mouth portion of a pouch and also makes it possible to form an embossed pattern on the sealing portion.
In accordance with the present invention, there is provided an apparatus for heat-sealing the mouth of a pouch of synthetic resin having a pair of endless belts arranged one upon the other for feeding the pouch so that the opposing inner belt portions of the belts will run in a juxtaposed relation in the same direction, drive means for driving the endless belts, and a pair of heat sealing means opposed to each other with the opposing inner belt portions running therebetween, the improvement wherein the heat sealing means are adapted to reciprocate and while they are moving in the opposite direction to the direction in which the belt portions move, they are kept away from each other, and while they are moving in the same direction as said direction, one of them is pressed toward the other, and they move at the same speed as the belt portions.
The apparatus according to the present invention has the following advantages. The pair of heat sealers are oppositely disposed with the opposed belt portions passing therebetween and are adapted to move back and forth within the range of travel of the belts. In its return stroke, the upper heat sealer is kept away from the belt and is pressed against the belt (and thus the lower heat sealer) again at the end of its return stroke. The heat sealers are- adapted to be moved back and forth at the same speed as that of the belts. Thus the apparatus of this invention can perfectly and reliably seal the mouth of any kind of pouch including a cheap pouch which is usually difficult to seal.
According to the present invention, the sealing process can be separated into two steps, i.e. the first step of sealing the mouth of a pouch discontinuously to allow the air in the pouch to be discharged through the openings between the discontinuous sealing portions, and the second step of hermecally heat-sealing the mouth.
Other features and objects of the present invention will become apparent from the following description taken with reference to the accompanying drawings, in which: Fig. 1 is a partially cutaway front view of an embodiment of the apparatus for heat-sealing the mouth of a pouch of a synthetic resin according to the present invention: Fig. 2 is a partially cutaway plan view of the same; Fig. 3 is a vertical sectional right side view of the central part of the same; Fig. 4 is an enlarged and partially cutaway front view of a portion of the same; Figs. 5 and 6 are front views of examples of sealed portions formed on the mouth of a pouch of a synthetic resin; and Fig. 7 is a schematic front view of a prior art apparatus for heat-sealing the mouth of a pouch.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to Figs. 1 to 3, numerals la and lb indicate a pair of endless belts disposed one above the other. Their driving rollers are represented by numerals 2a and 2b, and driven rollers by 3a and 3b, respectively, and a driving motor by 4 and a decelerator by 5. The driving roller 2b is driven from the decelerator 5. The driving rollers 2a and 2b have their respective gears 6a and 6b in mesh with each other so as to rotate synchronized with each other in the opposite directions of arrows in Fig. 1.
The endless belts la and lb are adapted to run parallel, kept in contact with each other, at their inner portions 7a and 7b. An opposed pair of heat sealers 8a and 8b are disposed above the portion 7a and below the portion 7b, respectively. In a casing 9, there is provided a swinging arm 10 pivotally mounted on the bottom frame and adapted to swing back and forth along the direction of travel of the belts at 7a and 7b. On the top of the swinging arm 10 is mounted a horizontal arm 11 which is provided with a pair of upright shafts 12 for supporting the heat sealers 8a and 8b at one side of the belt portions 7a and 7b.
The heat sealers 8a and 8b are provided with hot plates 14a and 14b, respectively, which are each supported on a pair of horizontal shafts 13a and 13b. (Fig. 3) Each upright shaft 12 extending from the horizontal arm 11 is passed through respective horizontal shafts. The lower hot plate 14b sticks out of the casing through a slit 15 (Fig.
3) formed in a side wall of the casing 9 in such a manner as to be elongated in the direction of travel of the belts at 7a and 7b. The upper hot plate 14a adapted to cooperate with the lower hot plate 14b is normally biased by coil springs 16 downwardly to be pressed against the lower plate 14b so that it can be raised against the bias of springs 16.
The swinging arm 10 has its intermediate portion pivotally connected to one end of a link 18 having its other end pivotally connected to a disk 17 cn its off-center point, the disk being coaxial with the decelerator 5. With the rotation of the decelerator, the swinging arm 10 swings in such a manner as shown in Fig. 4 to move the heat sealer 8a and 8b (namely, hot plates 14a and 14b) back and forth within a desired range along the direction of travel of the belts at 7a and 7b.
In the casing 9 behind the heat sealers 8a and 8b, there are provided cam plates 20 below a lift plate 19 fixedly mounted on the rear end of the horizontal shafts 13a so as to extend at the back of the shafts 13a. Each cam plate 20 has a cam surface a adapted to come into contact with the lift plate 19. The cam plates 20 are rotated by the driving roller 2b in such a manner as to keep their cam surface a out of contact with the lift plate 19 while the swinging arm 10 is in its forward sway motion and to put their cam surface into contact with the lift plate 19 when the swinging arm 10 reaches its forward dead point as shown by full line in Fig. 4, thus uplifting the plate 19 and raising the upper hot plate 14a.Thus, the swinging arm 10 sways backwardly until it reaches its rear dead point where the cam surface a again gets out of contact with the lift plate 19, pressing the upper hot plate 14a against the lower hot plate 14b to keep both hot plates in contact with each other while moving forward.
In Fig. 1, numerals 21a and 21b designate guide rails adapted to guide the horizontal shafts 13a and 13b of the hot plates 14a and 14b, respectively.
A chain 22 is put around a sprocket 23 of the motor 4 and the input sprocket 24 of the decelerator 5. A chain 25 is passed around an output sprocket 26 of the decelerator 5 and a sprocket 27 coaxial with the driving roller 2b for the endless belt lb. In Fig. 2, a chain 28 is passed around a sprocket 29 coaxial with the driving roller 2b and a sprocket 30 coaxial with one cam plate 20. A chain 31 is passed around sprockets 32a and 32b of both the cam plates 20.
As shown in Fig. 3, there are provided heaters 33a and 33b for heating the hot plates 14a and 14b of the heat sealers 8a and 8b, respectively.
In order to heat-seal the mouth of a pouch made of a synthetic resin by use of the heat sealing machine of the present invention, the heaters 33a and 33b are activated to heat the hot plates 14a and 14b, both of the endless belts la and lb are moved in unison, the mouth of a pouch 34 made of a synthetic resin is inserted between the hot plates 14a and 14b, i.e. between the portions 7a and 7b of the belts when the hot plates are out of contact with each other and positioned at the extreme rear end of its back-and-forth movement as shown in Fig. 3. The hot plates now pressed tight against each other are then advanced, keeping pace with the belts at 7a and 7b.
Fig. 5 shows how to heat-seal the mouth b of the pouch 34 packed with a pasty substance such as "Miso" or fermented soy beans, or jam. Discontinuous sealing segments for deaeration are shown at numeral 35 which are sealed together as a first step. After removing the air in the pouch through the openings 36 between the sealing segments 35, a main sealing segment 37 is sealed. Fig. 6 shows another example of the sealing segment 37 in which its width is enlarged in order to display embossed letters or figures 38 on the segment 37.

Claims (2)

CLAIMS:
1. Apparatus for heat-sealing the mouth of a pouch of synthetic resin, having a pair of endless belts arranged one upon the other for feeding the pouch so that the opposing inner belt portions of said belts will run in a juxtaposed relation in the same direction, drive means for driving said endless belts, and a pair of heat sealing means opposed to each other with said opposing -inner belt portions running therebetween, wherein said heat sealing means are adapted to reciprocate and while they are moving in the opposite direction to the direction in which said belt portions move, they are kept away from each other, and while they are moving in the same direction as said direction, one of them is pressed toward the other, and they move at the same speed as said belt portions.
2. Apparatus according to claim 1 substantially as hereinbefore described with reference to Figures 1 to 4 of the accompanying drawings.
GB8813531A 1988-06-08 1988-06-08 Apparatus for heat-sealing the mouth of a pouch Expired - Lifetime GB2219550B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8813531A GB2219550B (en) 1988-06-08 1988-06-08 Apparatus for heat-sealing the mouth of a pouch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8813531A GB2219550B (en) 1988-06-08 1988-06-08 Apparatus for heat-sealing the mouth of a pouch

Publications (3)

Publication Number Publication Date
GB8813531D0 GB8813531D0 (en) 1988-07-13
GB2219550A true GB2219550A (en) 1989-12-13
GB2219550B GB2219550B (en) 1992-07-08

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Family Applications (1)

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GB8813531A Expired - Lifetime GB2219550B (en) 1988-06-08 1988-06-08 Apparatus for heat-sealing the mouth of a pouch

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0495557A2 (en) * 1991-01-14 1992-07-22 Elwaplastic Maschinenbau Gmbh Apparatus for transverse welding of a moving film material
EP1844920A2 (en) * 2006-04-12 2007-10-17 Kallfass Verpackungsmaschinen GmbH Welding means, welding device and method for manufacturing film packaging
JP2015098354A (en) * 2013-11-20 2015-05-28 オリオン機械工業株式会社 Sealing device of packaging machine
US10906686B2 (en) 2017-04-28 2021-02-02 Multivac Sepp Haggenmüller Se & Co. Kg Sealing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087305A (en) * 1980-11-17 1982-05-26 Nordson Corp Sealing thermoplastic film layers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087305A (en) * 1980-11-17 1982-05-26 Nordson Corp Sealing thermoplastic film layers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0495557A2 (en) * 1991-01-14 1992-07-22 Elwaplastic Maschinenbau Gmbh Apparatus for transverse welding of a moving film material
WO1992011998A1 (en) * 1991-01-14 1992-07-23 Elwa-Plasticmaschinenbau Gmbh Device for the transverse welding of a running foil web
EP0495557A3 (en) * 1991-01-14 1992-08-12 Elwaplastic Maschinenbau Gmbh Apparatus for transverse welding of a moving film material
EP1844920A2 (en) * 2006-04-12 2007-10-17 Kallfass Verpackungsmaschinen GmbH Welding means, welding device and method for manufacturing film packaging
EP1844920A3 (en) * 2006-04-12 2009-11-18 Kallfass Verpackungsmaschinen GmbH Welding means, welding device and method for manufacturing film packaging
JP2015098354A (en) * 2013-11-20 2015-05-28 オリオン機械工業株式会社 Sealing device of packaging machine
WO2015075960A1 (en) * 2013-11-20 2015-05-28 オリオン機械工業株式会社 Sealing device for packaging machines
US10906686B2 (en) 2017-04-28 2021-02-02 Multivac Sepp Haggenmüller Se & Co. Kg Sealing device

Also Published As

Publication number Publication date
GB2219550B (en) 1992-07-08
GB8813531D0 (en) 1988-07-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930608