FR3090589B1 - Method and machine for separating sections for forming flexible bags - Google Patents

Method and machine for separating sections for forming flexible bags Download PDF

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Publication number
FR3090589B1
FR3090589B1 FR1873988A FR1873988A FR3090589B1 FR 3090589 B1 FR3090589 B1 FR 3090589B1 FR 1873988 A FR1873988 A FR 1873988A FR 1873988 A FR1873988 A FR 1873988A FR 3090589 B1 FR3090589 B1 FR 3090589B1
Authority
FR
France
Prior art keywords
hose
pair
blades
cylinders
machine
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.)
Active
Application number
FR1873988A
Other languages
French (fr)
Other versions
FR3090589A1 (en
Inventor
Frédéric Staerck
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.)
Holweg Group SAS
Original Assignee
Holweg Group SAS
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 Holweg Group SAS filed Critical Holweg Group SAS
Priority to FR1873988A priority Critical patent/FR3090589B1/en
Publication of FR3090589A1 publication Critical patent/FR3090589A1/en
Application granted granted Critical
Publication of FR3090589B1 publication Critical patent/FR3090589B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/146—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on a drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/261—Folding sheets, blanks or webs involving transversely folding, i.e. along a line perpendicular to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/94—Delivering singly or in succession
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets

Landscapes

  • Making Paper Articles (AREA)

Abstract

Selon un procédé de formation de sac flexible à partir d’un boyau (3) aplati, on utilise des moyens de séparation (4) pour séparer le boyau (3) en tronçons (30), les moyens de séparation (4) comportant une première paire de cylindres (41) et une deuxième paire de cylindres (42) entre lesquels le boyau (3) défile. Les moyens de séparation (4) comportent en outre une paire de rouleaux (431, 432) contra-rotatifs entre lesquels le boyau (3) défile et disposée entre la première et la deuxième paire de cylindres (41, 42), chaque rouleau (431, 432) comportant au moins une lame (433) s’étendant transversalement par rapport à la direction longitudinale (F1). On manœuvre les rouleaux pour que les lames (433) viennent en appui cycliquement sur le boyau (3) en étant décalées l’une de l’autre dans la direction longitudinale (F1) de sorte à imposer une trajectoire en zig-zag à la portion de boyau (3) entre la première et la deuxième paire de cylindres (41, 42) et ainsi tendre le boyau (3) sur les lames (433) et provoquer la coupe de chaque paroi (34, 35) en contact avec les lames (433) et séparer un tronçon du boyau (3). Figure pour l’abrégé : Fig. 1According to a method of forming a flexible bag from a flattened hose (3), separation means (4) are used to separate the hose (3) into sections (30), the separation means (4) comprising a first pair of cylinders (41) and a second pair of cylinders (42) between which the hose (3) runs. The separation means (4) further comprise a pair of counter-rotating rollers (431, 432) between which the hose (3) runs and arranged between the first and the second pair of rollers (41, 42), each roller ( 431, 432) comprising at least one blade (433) extending transversely with respect to the longitudinal direction (F1). The rollers are maneuvered so that the blades (433) come to rest cyclically on the hose (3) being offset from each other in the longitudinal direction (F1) so as to impose a zig-zag path on the portion of hose (3) between the first and the second pair of cylinders (41, 42) and thus stretch the hose (3) on the blades (433) and cause the cut of each wall (34, 35) in contact with the blades (433) and separate a section of the hose (3). Figure for the abstract: Fig. 1

FR1873988A 2018-12-21 2018-12-21 Method and machine for separating sections for forming flexible bags Active FR3090589B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1873988A FR3090589B1 (en) 2018-12-21 2018-12-21 Method and machine for separating sections for forming flexible bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1873988A FR3090589B1 (en) 2018-12-21 2018-12-21 Method and machine for separating sections for forming flexible bags

Publications (2)

Publication Number Publication Date
FR3090589A1 FR3090589A1 (en) 2020-06-26
FR3090589B1 true FR3090589B1 (en) 2021-04-09

Family

ID=67383834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1873988A Active FR3090589B1 (en) 2018-12-21 2018-12-21 Method and machine for separating sections for forming flexible bags

Country Status (1)

Country Link
FR (1) FR3090589B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE527120A (en) *
FR786579A (en) 1934-06-26 1935-09-05 Holweg Const Mec Method and devices for the production of flat bags
FR829591A (en) 1936-12-05 1938-06-30 Holweg Const Mec Device applicable to paper bag-making machines for pulling off pipe sections and forming flat bottoms
GB594573A (en) * 1943-11-04 1947-11-13 Riegger Paul Charles Improved method of slitting paper tubes or the like by means of a rotary blade
FR1270400A (en) 1960-10-13 1961-08-25 Holweg Const Mec Machine for the continuous production of bags and flat sachets
FR3030352B1 (en) 2014-12-19 2018-09-07 Holweg Group METHOD AND MACHINE FOR MANUFACTURING BAGS

Also Published As

Publication number Publication date
FR3090589A1 (en) 2020-06-26

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