EP0167717B1 - Procédé pour fabriquer des sacs en papier à plis multiples avec patte de fermeture échelonnée - Google Patents

Procédé pour fabriquer des sacs en papier à plis multiples avec patte de fermeture échelonnée Download PDF

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Publication number
EP0167717B1
EP0167717B1 EP85103892A EP85103892A EP0167717B1 EP 0167717 B1 EP0167717 B1 EP 0167717B1 EP 85103892 A EP85103892 A EP 85103892A EP 85103892 A EP85103892 A EP 85103892A EP 0167717 B1 EP0167717 B1 EP 0167717B1
Authority
EP
European Patent Office
Prior art keywords
paper
cut
closure flap
bags
layer
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
EP85103892A
Other languages
German (de)
English (en)
Other versions
EP0167717A1 (fr
Inventor
Gustav Kuckhermann
Per-Ulf Hansson
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.)
Icoma Packtechnik GmbH
Original Assignee
Icoma Packtechnik 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 Icoma Packtechnik GmbH filed Critical Icoma Packtechnik GmbH
Publication of EP0167717A1 publication Critical patent/EP0167717A1/fr
Application granted granted Critical
Publication of EP0167717B1 publication Critical patent/EP0167717B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps
    • 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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/02—Bags or like containers made of paper and having structural provision for thickness of contents with laminated walls

Definitions

  • the invention relates to a method for producing paper bags, in particular multilayer gusseted bags, with a staggered closure flap made of a possibly multilayer paper tube.
  • Paper bags with staggered flaps are made on relatively expensive machines. Perforation and tear-off devices are required for each individual paper layer. The relatively high level of mechanical engineering is nevertheless undertaken because paper sacks with a staggered cut are technically advantageous, in particular because of the low material consumption.
  • the invention has for its object to provide a method for producing paper bags with a staggered closure flap, in which a smooth cutting machine can be used, the material consumption is reduced and the production of a paper bag with only one fold is possible.
  • the solution according to the invention is achieved in that the paper tube is cut off smoothly, starting from the end edge formed in this way, is slit along the longitudinal outer fold edges in accordance with the length of the flap, then one of the possibly multilayer flaps formed thereby is bent back transversely to the longitudinal direction of the sack and the other flap is cut back becomes.
  • the method according to the invention permits the production of a paper sack with a staggered closure flap, using largely smooth-cutting machines. Inexpensive additional equipment is sufficient to turn the smoothly cut sack into a paper sack with a staggered closure flap, i.e. a paper sack that has all the advantages of a relay sack, which can otherwise only be produced with much greater mechanical engineering effort.
  • the paper bag has an outer layer 1 or 1a.
  • the outer layer 1 is connected to the inner layer 2 via a cross bond 3.
  • the outer layer 1 a opposite the first outer layer 1 is also connected to the inner layer 2 a behind it by means of a transverse bond 3.
  • the two inner gussets are designated by 8, while the outer gussets are designated by 9 and 9a.
  • the paper layers 1 and 2 glued together are provided with the longitudinal section 7.
  • the outer sides of the paper layers 1 a lie on top of one another and are glued to one another via the adhesive point 6.
  • the paper layer 2 glued transversely to the first outer layer 1 overlaps the glue point 6 and the inner paper layer 2, which is glued transversely to the first outer layer 1, in turn lies on the outside of the paper layer 1a and is connected to this paper layer via the glue point 6a.
  • FIG. 4 shows a development of the embodiment according to FIG. 3, in which the second outer layer 1 is additionally folded over twice with the inner layer 2a connected to it.
  • the outer, simply folded ends of the paper layers 1, 2 are glued to the second outer layer 1 via the adhesive point 6a.
  • the inner ends of the paper layers 1 a, 2 a are connected to the ends of the paper layers 1, 2 via a first adhesive point 6 and outward behind the second fold to the second outer layer 1 a via a second adhesive point 6 before the second fold.
  • FIGS. 5 to 6 show the cutting back process.
  • the paper layers 1 and 2 are up to the area of the counter-holder 11 slotted. They are bent away from the paper layers 2a and 1a into the position according to FIG. 6. This can be done using a suction tape, guide rod or other elements.
  • the cutting device consisting of separating knife 12 and counter knife 13 is used to cut off the area of the paper layers 1a and 2a which is dash-dotted in FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)

Claims (3)

1. Procédé pour fabriquer des sacs en papier, en particulier des sacs a parois multiples et à soufflets, avec une patte de fermeture échelonnée, à partir d'un boyau de papier, le cas échéant multicouche (1, 1a; 2, 2a), caractérisé en ce que le boyau de papier est coupé carrément, et refendu, à partir du bord d'extrémité (4) ainsi formé, suivant les bords de pliage extérieurs (9) qui s'étendent longitudinalement, sur une distance correspondant à la longueur de la patte de fermeture, puis une des languettes ainsi formées, éventuellement multicouche (1, 2), est repliée perpendiculairement à la direction longitudinale du sac et l'autre languette est coupée.
2. Procédé suivant la revendication 1, caractérisé en ce que les couches de papier non repliées (1a; 2a) sont coupées jusqu'à l'extrémité de la fente (7).
3. Procédé suivant la revendication 1 ou 2, caractérisé en ce que la coupe s'effectue au moyen de couteaux (12 et 13) pouvant être amenés en contact avec des côtés différents du boyau de papier.
EP85103892A 1984-07-12 1985-04-01 Procédé pour fabriquer des sacs en papier à plis multiples avec patte de fermeture échelonnée Expired EP0167717B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3425608 1984-07-12
DE19843425608 DE3425608A1 (de) 1984-07-12 1984-07-12 Verfahren zum herstellen von mehrlagigen papiersaecken mit gestaffelter verschlussklappe

Publications (2)

Publication Number Publication Date
EP0167717A1 EP0167717A1 (fr) 1986-01-15
EP0167717B1 true EP0167717B1 (fr) 1987-07-22

Family

ID=6240410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103892A Expired EP0167717B1 (fr) 1984-07-12 1985-04-01 Procédé pour fabriquer des sacs en papier à plis multiples avec patte de fermeture échelonnée

Country Status (2)

Country Link
EP (1) EP0167717B1 (fr)
DE (2) DE3425608A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8806509D0 (en) * 1988-03-18 1988-04-20 Ward Sacks Ltd Improvements in/relating to sacks
DE4322520C2 (de) * 1993-07-06 1997-04-30 Windmoeller & Hoelscher Mehrlagiger Sack oder Beutel mit Boden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1239906A (en) * 1967-09-19 1971-07-21 Robinson E S & A Ltd A method of making bags of paper or like sheet material
DE2951597A1 (de) * 1979-12-21 1981-07-09 Icoma Packtechnik GmbH, 7590 Achern Verfahren zum verschweissen der innenlagen von mehrlagigen papiersaecken
US4381107A (en) * 1980-07-28 1983-04-26 John W. Armiger Cutting and collating method and apparatus for tickets
US4573956A (en) * 1983-09-08 1986-03-04 Mid America Machine Corp. Slitter assembly for double fold bottomer apparatus

Also Published As

Publication number Publication date
DE3425608A1 (de) 1986-01-23
DE3560353D1 (en) 1987-08-27
EP0167717A1 (fr) 1986-01-15

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