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SU816395A3 - Method and device for sealing large-sized bags - Google Patents

Method and device for sealing large-sized bags Download PDF

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Publication number
SU816395A3
SU816395A3 SU792838806A SU2838806A SU816395A3 SU 816395 A3 SU816395 A3 SU 816395A3 SU 792838806 A SU792838806 A SU 792838806A SU 2838806 A SU2838806 A SU 2838806A SU 816395 A3 SU816395 A3 SU 816395A3
Authority
SU
USSR - Soviet Union
Prior art keywords
neck
folded
needles
bag
piercing
Prior art date
Application number
SU792838806A
Other languages
Russian (ru)
Inventor
Оелрих Херманн
Тетенборг Конрад
Шмидт Хорст
Хювельманн Хельмут
Original Assignee
Виндмеллер Унд Хельшер (Фирма)
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Application granted granted Critical
Publication of SU816395A3 publication Critical patent/SU816395A3/en

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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
    • B29C66/01—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
    • 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
    • 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
    • B29C65/743—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 using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—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 using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
    • 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
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/135—Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
    • B29C66/1352—Single hem to hem 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
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0045—Perforating
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Bag Frames (AREA)

Abstract

After filling, the open end of a thermoplastic sack is closed by gathering it into zig-zag folding (1) which is compressed between apertured jaws (3, 4). Heated needles (7) insertable through the jaw apertures (5) pierce the compressed zig-zag folding and cause the individual folds to be welded to each other adjacent the piercings to secure the closure against springing open after the jaws (3, 4) are removed. <IMAGE>

Description

1one

Изобретение относитс  к технике закрыти  мешков из термопластичного материала и устройству дл  его осуществлени  и может быть использовано в пищевой, химической и других отрасл х народного хоз йства.The invention relates to the technique of closing bags made of thermoplastic material and to a device for its implementation and can be used in food, chemical and other sectors of the national economy.

Известен способ укупорки крупногабаритных мешков из термопластичного материала, предусматривающий складывание гармошкой горловины мешка , прокалывание ее гор мими иглами и фиксирование l.There is a method of closing large-sized bags of thermoplastic material, which involves folding the neck of the bag with an accordion, piercing it with hot needles and fixing it.

Известно также устройство дл  укупорки крупногабаритных мешков, содержащее нагревательные иглы дл  прокалывани  горловины 1.It is also known a device for closing large-sized bags, containing heating needles for puncturing the neck 1.

Однако известный способ сложен, так как требует особых приспособлений дл  закрыти  крупногабаритных мешков, что обуславливает дополнителные затраты на оборудование, а устройство , примен емое дл  осуществлени  известного способа, не обеспечивает достаточной ПРОЧНОСТИ укупорки. However, the known method is complicated, since it requires special devices for closing large-sized bags, which leads to additional equipment costs, and the device used to implement the known method does not provide sufficient sealing strength.

Цель изобретени  - упрощение процесса .The purpose of the invention is to simplify the process.

Поставленна  цель достигаетс  тем что в .предлагаемом способе укупорки крупногабаритных мешков из термопластичного материала, предусматривающем складывание гармошкой горловины мешка, прокалывание ее гор чими иглами и фиксирование, горловину после прокалывани  сжимают в местах образованных отверстий в осевом найравлении последних до затвердевани  термопластичного материала. При этом край горловины перед складыванием гармошкой загибают, по меньшей мере один раз.The goal is achieved by the fact that in the proposed method of sealing large bags of thermoplastic material, which include folding the neck of the bag with an accordion, piercing it with hot needles and fixing, the neck after piercing is squeezed in the places of the holes formed in the axial pressure of the latter until the thermoplastic is hardened. At the same time, the edge of the neck is folded at least once before folding the accordion.

При этом сложенную гармошку перед фиксированием загибают, по меньшей мере, один раз.When this folded harmonica before fixing bend at least once.

При этом торцовые кра  сложенной гармошкой горловилы мешка сплавл ют один с другим под воздействием тепла ..In this case, the end edges of the accordion-folded neck of the bag fuse with each other under the influence of heat.

При ,этом на всех складках горловины образуют попере ный сварной шов.In this case, on all the folds of the neck, they form a transverse weld.

При этом дл  повышени  прочности укупорки устройство дл  укупорки крупногабаритных мешков, содержащее нагревательные иглы дл  прокалывани  горловины, снабжено прижимными колодками дл  сложенной горловины, имеющими соосные отверсти  дл  входа в них игл.At the same time, in order to increase the strength of the closure, the device for closing large-sized bags, containing heating needles for piercing the neck, is provided with pressure pads for a folded neck, having coaxial openings for the needles to enter them.

На фиг. 1 схематично изображено устройство дл  осуществлени  способа общий вид; на фиг. 2,3- горловина мешка, собранна  гармошкой, в аксонометрии/ на фиг. 4-9 - горловина мешка, собранна  гармсшкой, после прокалывани  ее гор чими иглами и фиксировани , в аксонометрии.FIG. 1 shows schematically an apparatus for carrying out the method; a general view; in fig. 2,3 - bag neck, collected by an accordion, in a perspective view / in FIG. 4-9 is the neck of the bag, assembled with a garmshka, after piercing it with hot needles and fixing it, in axonometry.

Устройство (фиг. 1) содержит наг;ревательные иглы 1 дл  прокалывани  горловины мешка 2, прижимные колодки 3 и 4 дл  сложенной горловины, имеющие соосные отверсти  5 дл  входа в них игл 1. Иглы 1 размещены на планке 6 с возможностью перемещени  вместе с последней в осевом напра:влении отверстий.The device (Fig. 1) contains nag; zealous needles 1 for piercing the neck of the bag 2, pressure pads 3 and 4 for the folded neck, having coaxial holes 5 for the needles 1 to enter them. The needles 1 are placed on the bar 6 with the possibility of moving with the latter in axial direction: holes.

Способ осуществл ют следующим образом .The method is carried out as follows.

Горловину мешка 2 складывают гармсшкой 7 {фиг. 2 и 3) и прокалывают гор чими иглами 1. После прокалывани  горловину мешка 2 сжимают в местах образованных отверстий 5 в осевом направлении последних между перемещающимис  одна относительно другой прижимными колодками 3 (фиг. 1) до Затвердевани  термопластичного материала , пластифицированного иглами 1, при этом термопластичный материал лроходит в отверсти  5, благодар  чему последние полностью заполн ютс  и закрываютс  материалом. Торцовые кра  сложенной гармс ики 7 горловишл мешка сплавл ют один с другим под воздействием тепла (фиг. 4 и 5).The neck of the bag 2 is folded with a garmeshka 7 {fig. 2 and 3) and pierce with hot needles 1. After piercing, the neck of bag 2 is compressed at the places of the formed holes 5 in the axial direction of the latter between the pads 3 moving each other relative to the other (Fig. 1) until the thermoplastic material is plasticized with needles 1, while the thermoplastic material crawls into the holes 5, whereby the latter are completely filled and covered with material. The end edges of the folded Garms' 7 neck of the bag fuse with each other under the influence of heat (Fig. 4 and 5).

Край 8 горловины мешка 2 перед складыванием гармс икой загибают один раз (фиг. 6) или край 9 горловины загибают два раза (фиг. 7).The edge 8 of the neck of the bag 2 is folded once before folding the garment (Fig. 6), or the edge 9 of the neck is folded twice (Fig. 7).

Дл  фиксировани  на всех складках горловины мешка на креио образуют также поперечный сварной шов 10 (фиг. 8).и при необходимости образуют поперечный сварной шов 11 (фиг.9) на загнутом один или несколько раз краю горловины мешка.For fixation on all folds of the neck of the bag, creio also forms a transverse weld seam 10 (Fig. 8). If necessary, they form a transverse weld seam 11 (Fig. 9) on the edge of the bag neck that is folded one or more times.

Преимуществом изобретени   вл етс  простота npoueccci -укупорки и повышенна  прочность укупорки с помощью предлагаемого устройства дл  осуществлени  способа.An advantage of the invention is the simplicity of the npoueccci closure and the increased strength of the closure using the proposed device for carrying out the method.

Закрытые предлагаемым способом крупногабаритные мешки имеют аккуратно сложенный горизонтально расположенный край горловины мешка, благодар  чему обеспечиваетс  хорошее манипулирование мешками при их транспортиро ке и перемещении.The large-size bags closed by the proposed method have a neatly folded horizontally located edge of the neck of the bag, thereby ensuring good handling of the bags during their transportation and movement.

В закрытый мешок в месте его укупорки не проникает влага, что отвечает требовани м хорошего закрыти .Moisture does not penetrate into the closed bag in the place of its closure, which meets the requirements of good closure.

Claims (6)

1.Способ укупорки крупногабаритных мешков из термопластичного материала , предусматривающий складывание гармошкой горловины мешка, прокалывание ее гор чими иглами и фиксирование , отличающийс  тем, что, с целью упрощени  процесса , горловину после .прокалывани  сжимают в местах образованных отверстий в осевом направлении последних до. затвердевани  термопластичного материала.1. A method for closing large-sized bags of thermoplastic material that involves folding the bag mouth with an accordion, piercing it with hot needles and fixing it, in order to simplify the process, after the puncture, the neck is compressed in the axially formed holes of the latter. solidification of thermoplastic material. 2.Способ по п. 1, отличающийс  тем, что край горловины перед складыванием гармошкой загибают по меньшей мере один раз.2. A method according to claim 1, characterized in that the edge of the neck is folded at least once before folding the accordion. 3.Способ попп.1и2, отличающий с  тем, что сложенную гармошку перед фиксированием загибают по меньшей мере один раз.3. Method ppp.1 and 2, characterized in that the folded harmonica is folded at least once before fixing. 4.Способ по пп. 1-3, отличающийс  тем, что торцовые кра  сложенной гармошкой горловины мешка сплавл ют один с другим под воздействием тепла.4. Method according to paragraphs. 1-3, characterized in that the end edges of the harmoniously folded neck of the bag fuse with each other under the influence of heat. 5.Способ по пп. 1-4, отличающийс  тем, что на всех складках горловины образуют поперечный сварной шов.5. Method according to paragraphs. 1-4, characterized in that all the folds of the neck form a transverse weld seam. 6.Устройство дл  укупорки крупногабаритных мешков, содержащее нагревательные иглы дл  прокалывани  горловины, отличающеес  тем, что, с целью повышени  прочности укупорки,.оно снабжено прижимными колодками дл  сложенной горловины, имеющими соосные отверсти  дл  входа в них игл.6. A device for closing large-sized bags containing heating needles for piercing the neck, characterized in that, in order to increase the strength of the closure, it is provided with pressure pads for a folded neck having coaxial holes for the needles to enter them. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1. Патент США 3021947, кл. ,206-526, опублик. 1962.1. US patent 3021947, cl. , 206-526, published 1962.
SU792838806A 1978-11-15 1979-11-13 Method and device for sealing large-sized bags SU816395A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2849587 1978-11-15

Publications (1)

Publication Number Publication Date
SU816395A3 true SU816395A3 (en) 1981-03-23

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SU792838806A SU816395A3 (en) 1978-11-15 1979-11-13 Method and device for sealing large-sized bags

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JP (1) JPS55109617A (en)
AT (1) AT383324B (en)
BR (1) BR7907364A (en)
ES (1) ES253552Y (en)
FI (1) FI792695A7 (en)
FR (1) FR2441546A1 (en)
GB (1) GB2034278B (en)
IT (1) IT1123438B (en)
SU (1) SU816395A3 (en)

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Publication number Priority date Publication date Assignee Title
CA1260884A (en) * 1986-07-22 1989-09-26 George Soga Fused plastic bag closure and apparatus for making same
FI85257C (en) * 1990-01-25 1992-03-25 Rosenlew Ab Oy W BOEJLIG BEHAOLLARE FOER TRANSPORT OCH LAGRING AV MASSAGODS.
US5600938A (en) * 1995-09-22 1997-02-11 Kwik Lok Corporation Sealing and bagging apparatus and method
ES2154540B1 (en) * 1998-03-16 2001-10-16 Aruas Poultry Equipment S L PROCEDURE AND DEVICE FOR THE UNION OF BANDS OF THERMOPLASTIC MATERIAL.
FR2783745A1 (en) * 1998-09-29 2000-03-31 Bernard Vincent Bonding compatible thermoplastic materials by hot needle-, blade-, flame- or laser-spot welding, first compresses materials, welds, cools and releases clamping pressure, in process loosely resembling machine sewing
JP2012111076A (en) * 2010-11-22 2012-06-14 Kao Corp Laminated sheet
DE102013100131A1 (en) * 2013-01-08 2014-07-10 Windmöller & Hölscher Kg Method of making sacks
CN118907560B (en) * 2024-08-20 2025-04-25 辽宁格瑞自动化设备有限公司 Full-automatic packaging line adopting double-hanging-ring flexible freight bags

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB666945A (en) * 1950-01-14 1952-02-20 Hercules Fasteners Inc Improvements in sealing sausage skins or like containers
US3021947A (en) * 1959-02-27 1962-02-20 Amsco Packaging Machinery Inc Fused-together unit of stacked articles
US2973797A (en) * 1960-01-28 1961-03-07 Amsco Packaging Machinery Inc Apparatus for maintining the orientation of stacked bags
GB926742A (en) * 1960-02-11 1963-05-22 Forgrove Mach Improvements in heat sealing of wrapping materials
DE2652010C2 (en) * 1976-11-15 1984-03-01 Windmöller & Hölscher, 4540 Lengerich Method of closing bags

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Publication number Publication date
IT1123438B (en) 1986-04-30
AT383324B (en) 1987-06-25
FR2441546B1 (en) 1983-12-23
ES253552U (en) 1980-12-16
BR7907364A (en) 1980-07-15
ATA559779A (en) 1986-11-15
GB2034278B (en) 1983-03-23
IT7926226A0 (en) 1979-10-03
FI792695A7 (en) 1981-01-01
FR2441546A1 (en) 1980-06-13
JPS55109617A (en) 1980-08-23
GB2034278A (en) 1980-06-04
ES253552Y (en) 1981-06-01

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