US2281964A - Method and apparatus for making paper bags - Google Patents

Method and apparatus for making paper bags Download PDF

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Publication number
US2281964A
US2281964A US391251A US39125141A US2281964A US 2281964 A US2281964 A US 2281964A US 391251 A US391251 A US 391251A US 39125141 A US39125141 A US 39125141A US 2281964 A US2281964 A US 2281964A
Authority
US
United States
Prior art keywords
web
bag
rolls
roll
lengths
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 - Lifetime
Application number
US391251A
Other languages
English (en)
Inventor
Howard A Wolf
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.)
HOWARD A WOLF
WALTER L WOLF
Original Assignee
HOWARD A WOLF
WALTER L WOLF
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
Priority to CA450345A priority Critical patent/CA450345A/fr
Application filed by HOWARD A WOLF, WALTER L WOLF filed Critical HOWARD A WOLF
Priority to US391251A priority patent/US2281964A/en
Application granted granted Critical
Publication of US2281964A publication Critical patent/US2281964A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel 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
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding
    • 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
    • B31B2155/00—Flexible containers made from 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0012—Flexible containers made from webs by folding webs longitudinally having their openings facing in 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • 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
    • B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/146—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on a drum

Definitions

  • Patented May 5, 1942 METHOD AND APPARATUS FOR MAKING PAPER BAGS Howard A. Wolf, Philadelphia, Pa., assignor to Louis Wolf, Elias Wolf, Howard A. Wolf, and Walter L. Wolf, copartners trading and doing business as Wolf Brothers, Philadelphia, Pa.
  • This invention relates to method and apparatus for the manufacture of paper bags and, more particularly, of paper bags of the envelope type provided with registering reinforced openings in the front and back and closure flap for entry of the fingers and to enable them to be conveniently carried.
  • the method and apparatusv according to this invention contemplate the continuous production of paper bags of the envelope type from a continuous strip of paper stock
  • the method according to this invention will be made apparent from the following description of the apparatus, which, generally speaking, will comprise coordinated elements for applying reinforcing material to a moving strip of paper stock, folding and severing bag lengths, folding and securing the bottom closure, forming the finger openings, and creasing the top closure flap.
  • the several elements of the apparatus will be continuously operated in such arrangement and with coordination or timing as to progressively reinforce, fold and strike from a running strip of paper stock, and, after severance of the bag lengths, to fold and secure the bottom closure and perforate and crease the top flap, with continuity of all of the several operations.
  • Figure 1 is a diagrammatic view of an apparatus embodying this invention and adapted for carrying out the method according to this invention.
  • Figure 2 is a side view, partly in section, of the elements of the apparatus for applying reinforcing patches and folding.
  • Figure 3 is a, side view, partly in section, showing details of the apparatus shown in Figure 1.
  • Figure 4 isa plan view of a folded bag blank.
  • Figure 5 is a diagrammatic sectional view of the blank shown in Figure 4.
  • Figure 6 is a. plan view of a finished bag.
  • Figure '7 is a, diagrammatic sectional view of the bag shown inFlgure 6.
  • Figure 8 is a plan view of a perforating and creasing roll.
  • Figure 9 is a perspective view of the bag shown in Figure 6.
  • Figures 10 and 11 are end views, partly broken away, of rolls, in successive positions, for folding and securing the bottom closure
  • I indicates a roll of paper of the desired type and weight for the bag to be produced.
  • a web 2 is led through a pair of driven rolls 3, 3 and around guide rolls 4 and 5.
  • Adjacent to the guide roll 5 and cooperating therewith is a paster comprising, for example, a container 6 for paste in which a transfer roll I turns and transfers paste to a series of discs which are in contact with the upper surface of the web 2 as it passes around guide roll 5.
  • the paster as shown comprises a pair of discs 8 between which are a pair of discs which are cut away peripherally except for the portions 9, so that in practice paste is applied to the web in two continuous lines I0 and two short lines I I at intervals.
  • the web 2 after passing around roll 5 passes under forming device I2 about which its side portions are oppositely folded into overlapping relation by the action of folding rolls I3, I3.
  • the tube formed by the folding of the web about the former l2 passes beneath a pair of driven supported from a bracket I8.
  • the end I6 of the former acts as a cutting edge and may be serrated.
  • the cutting edge I1 is spaced to the rear of the edge l6 of the former a distance equal to the length of the closing flaps desired for the bag to be produced.
  • a striker I9 carried by a disc 20, adapted to be rotated in the direction of the arrow, Figure 2, operates in cooperation with the edge I6 of the former and the cutting edge H to sever bag lengths 2
  • the walls of the tube are severed on longitudinally spaced lines for the formation of flaps one of which, as the flap 22, as will be described, is folded over and pasted to form a permanent closure at one end of the bag and the other of which forms a closing flap 23.
  • a roll 24 of reinforcing material of desired type, as, for example, a heavy paper, a fabric, or the like, and of desired width is supported adjacent to the roll of paper I and a web 25 of the material is led over a guide roll 25, between a pair of driven rolls 21, 21 and between a. roll 23 carrying knives 29 and a roll 33 provided with slots 3
  • Adjacent to the lower of the driven rolls 3, 3 is a paster comprising a container for paste 33 in which revolves a transfer roll 34 adapted to transfer paste to a series of discs 35.
  • the discs 35 are carried by a bracket 35 mounted in a shaft 31 adapted to be rotated against the action of a spring 4
  • the paste applying discs 35 are moved, by operation of the cam 38, into contact with the surface of the web at intervals in timed relationship with the cutting rolls 28, 30 so that lines of paste will be applied to the web 2 at intervals corresponding to the intervals of delivery of the reinforcing members 42 to the nip of the rolls 3, 3.
  • the reinforcing elements 42 passing through the rolls 3, 3 with the web 2 will be adhered to the web by the paste applied by discs 35.
  • the rolls 52, 52 are shown in detail in Figures and 11, from an inspection of which it will be noted that the surface of the lower roll is grooved longitudinally to form the V-shaped groove 55, while the upper roll is provided with a complementary projection 56 adjacent to which is a longitudinally extending paste pad 51 adapted to receive paste from a paster roll 58 turning in a supply of paste 59 in a container 60. Adjacent to and cooperating with the lower roll 52 is a presser roll 52.
  • the first bag length follows the course through element D, as Just described, the first bag length, closed at its bottom, passes through the pair of rolls 33, 63 and 64, N, and into the nip of the perforating and creasing rolls 63, 58, under the guidance of tables 65, 65 and 51.
  • Tapes or endless conveyors may be provided to convey the bag lengths over any of the tables 65, 66 or 51.
  • the perforating and creasing rolls 38, 68 comprise the element E.
  • the upper roll 63 is provided with a cutter 59, a creasing bar III and a pair of slitting knives 7
  • the method of forming paper bags which comprises continuously advancing a web of paper and a web of reinforcing material, severing patches from the web of reinforcing material and applying them at intervals to the advancing web of paper, forming the & advancing web of paper into tubular form and periodically severing bag lengths with closing flaps at both ends from the tube formed, continuously advancing the bag lengths after severance from the tube, folding and securing the closure flaps at the leading ends of the advancing bag lengths, and, then while continuing tovadvance the bag lengths, successivelyfirst cutting, a finger opening in the body of the'bag lengths adjacent to the trailing end of the bag lengths, then creasing along the line of juncture of the closure flap at the trailing end to ionn a locking tongue.

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  • Making Paper Articles (AREA)
US391251A 1941-05-01 1941-05-01 Method and apparatus for making paper bags Expired - Lifetime US2281964A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA450345A CA450345A (fr) 1941-05-01 Methode et appareil a fabriquer des sacs en papier
US391251A US2281964A (en) 1941-05-01 1941-05-01 Method and apparatus for making paper bags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US391251A US2281964A (en) 1941-05-01 1941-05-01 Method and apparatus for making paper bags

Publications (1)

Publication Number Publication Date
US2281964A true US2281964A (en) 1942-05-05

Family

ID=23545887

Family Applications (1)

Application Number Title Priority Date Filing Date
US391251A Expired - Lifetime US2281964A (en) 1941-05-01 1941-05-01 Method and apparatus for making paper bags

Country Status (2)

Country Link
US (1) US2281964A (fr)
CA (1) CA450345A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725798A (en) * 1948-08-19 1955-12-06 Clarence W Vogt Apparatus for and method of assembling enwrapments
US2855832A (en) * 1954-01-13 1958-10-14 W Inc Apparatus for making bags
US2958437A (en) * 1956-08-29 1960-11-01 Wolf Brothers Inc Method and apparatus for applying patches to a moving web
US3003402A (en) * 1957-07-05 1961-10-10 Stein Sam Method of making disposable litter bags
US3110231A (en) * 1962-01-31 1963-11-12 Oneida Paper Products Inc Method of making litter bags
US3682051A (en) * 1969-07-04 1972-08-08 Sengewald Karl H Method and apparatus for making carrying bags and a carrying bag product
US5045042A (en) * 1987-11-04 1991-09-03 John C. Marrelli Plastic film bag with integral plastic film tie element, and associated fabrication methods
CN109774247A (zh) * 2019-03-29 2019-05-21 揭阳市群星机械股份有限公司 一种全自动内补片机供料装置
WO2020049376A1 (fr) * 2018-09-03 2020-03-12 Lineapack Chinello Srl Appareil et procédé permettant de former des sacs avec une pièce rapportée de renforcement
WO2026033491A1 (fr) * 2024-08-09 2026-02-12 Lineapack Chinello S.R.L. Appareil et procédé de construction d'un sac

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126146A (en) * 1964-03-24 bonsor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725798A (en) * 1948-08-19 1955-12-06 Clarence W Vogt Apparatus for and method of assembling enwrapments
US2855832A (en) * 1954-01-13 1958-10-14 W Inc Apparatus for making bags
US2958437A (en) * 1956-08-29 1960-11-01 Wolf Brothers Inc Method and apparatus for applying patches to a moving web
US3003402A (en) * 1957-07-05 1961-10-10 Stein Sam Method of making disposable litter bags
US3110231A (en) * 1962-01-31 1963-11-12 Oneida Paper Products Inc Method of making litter bags
US3682051A (en) * 1969-07-04 1972-08-08 Sengewald Karl H Method and apparatus for making carrying bags and a carrying bag product
US5045042A (en) * 1987-11-04 1991-09-03 John C. Marrelli Plastic film bag with integral plastic film tie element, and associated fabrication methods
WO2020049376A1 (fr) * 2018-09-03 2020-03-12 Lineapack Chinello Srl Appareil et procédé permettant de former des sacs avec une pièce rapportée de renforcement
CN109774247A (zh) * 2019-03-29 2019-05-21 揭阳市群星机械股份有限公司 一种全自动内补片机供料装置
WO2026033491A1 (fr) * 2024-08-09 2026-02-12 Lineapack Chinello S.R.L. Appareil et procédé de construction d'un sac

Also Published As

Publication number Publication date
CA450345A (fr) 1948-08-03

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