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US3494264A - Manufacture of paper and like bags with attached flat handles - Google Patents

Manufacture of paper and like bags with attached flat handles Download PDF

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Publication number
US3494264A
US3494264A US617133A US3494264DA US3494264A US 3494264 A US3494264 A US 3494264A US 617133 A US617133 A US 617133A US 3494264D A US3494264D A US 3494264DA US 3494264 A US3494264 A US 3494264A
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US
United States
Prior art keywords
handles
strip
bag
bags
paper
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
US617133A
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English (en)
Inventor
Jean Class
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.)
Ateliers de Constructions Mecaniques C&A Holweg SA
Original Assignee
Ateliers de Constructions Mecaniques C&A Holweg SA
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 Ateliers de Constructions Mecaniques C&A Holweg SA filed Critical Ateliers de Constructions Mecaniques C&A Holweg SA
Application granted granted Critical
Publication of US3494264A publication Critical patent/US3494264A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D33/06—Handles
    • B65D33/10—Handles formed of similar material to that used for the bag
    • B65D33/105—U-shaped
    • 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
    • B31B70/864—Mounting separate handles on bags, sheets or webs

Definitions

  • the present invention relates to the manufacture in continuity of bags of paper and like materials with attached flat handles, on a rotary machine with a handlemaking device, by a process in which a travelling web of material is provided with perforation lines and the handles are stuck in correct positions on the web, the latter is formed into a tube, and the bags are formed with the 'bag bottoms foremost and the handles are formed by folding down to the rear.
  • the present invention relates to the manufacture of paper and like bags, in general, and to such manufacture in one single operation and continuously of bags of paper or similar material having attached flat handles.
  • a reversing device ensures the depositing of the handles on the face of the strip in the correct position, with the arms of the handles directed in the direction of advance of the strip, whereas at emergence from the manufacturing system the arms are oriented towards the rear, due to the folding over of the arms.
  • the arrangement permits the correct and exact placement upon the strip of paper, which is subsequently to be transformed into bags, of the newly manufactured handle which turn in the direction opposite to that of the unwinding of the strip and which comes to abut against a stop in order to receive, at that moment with respect to its position in relation to the perforation, an acceleration to achieve the same speed and direction as the paper strip, while being strongly applied to the latter.
  • the mandrel for formation of the tube is provided with a flexible guide and has a cut-away portion at its end.
  • the guide and the cut-away portion facilitate the passage of the handles.
  • FIG. 1 is a plan view of the device disclosing the formation of the bag
  • FIG. 2 is an elevational view disclosing the correct position for depositing the handle on the strip
  • FIG. 3 shows in stages the formation and reversal of each flat handle
  • FIG. 4 is an elevational view, partly in section, which illustrates the formation of the tube diagrammatically
  • FIG. 5 is a view disclosing the slot to be provided at the end of the tube-forming mandrel.
  • FIG. 6 is a top plan view partly broken away showing :he rollers turning and depositing the handles, as well as he blower.
  • a' strip 1 of paper or similar material is unwound from :he reel 2 and is provided with transverse perforations 3 which, by pulling the sheet apart facilitated by a speed lifference, permits a subsequent separation into sections 9f a tube 4 formed at portion 5 by mandrel 6, which is nrovided at its end with a slot or recess 7, of sufficient zvidth for the passage of the handle and of such a depth hat in the region of the edge 8 the paper is not firmly ap plied to the plate.
  • This recess is necessary both for the formation of flat tubes and for the formation of tubes with bellows folds. It avoids the risk of unsticking of the iandles attached to the interior of the bag, which have a :endency to hook themselves to the edge of the mandrel.
  • the mandrel 6, which is single for flat tubes and double for tubes having bellows Folds, is furthermore provided with one or more guides 9 of flexible steel, one of the ends of which continues to a point below the mandrel.
  • the handles 10 must be deposited and stuck on the ;trip before the formation of the tube, in the position 3f the arms as represented in FIG. 2 in relation to the lnwinding direction of the strip, since the bag is formed 3y advancing the tube with the bottom 11 of the bag foremost (FIG. 1).
  • the handle is formed on the rotary machine in the direction of travel by folding down to the rear, and thus the arms are situated as shown at 12 in FIG. 3.
  • FIG. 3 diagrammatically illustrates the handle initially positioned on the upper part of a drum or roller 13, with the arms directed to the rear in relation to the direction of rotation 14 of the drum, and after the drum rotates 180, the handle is situated in the correct position 10 with the arms directed frontwards and ready to be deposited on the strip.
  • the auxiliary device for the traction of the folded paper strips which are intended to become the handles which are pushed along the generatrix of a cylinder until the moment when they are cut and grasped by rearwardly folding grippers, comprise two rollers, a lower one driven at a speed slightly higher than the delivery speed of the strip, and an upper one which is freely rotatable, so that there is a permanent slip between the strip and these rollers and also a significant traction between these rollers on the one hand and a powerful drive cylinder.
  • formation grippers grasp it and entrain it perpendicularly to its initial path. It is at this moment that the auxiliary device frees it by a slight lifting of the freely rotatable upper rollers.
  • the two handle-forming drums disposed laterally with regulable spacing according to the width of the bag to be produced (as indicated by the double arrows in FIG. 6), effect the reversal of the handles by rotation through 180 as specified above, and these handles, thus placed correctly, are released and in abutment against a stop which is a simple piece of sheet metal, this occurring before the drum has reached its lowest point.
  • the device which imparts movement to the handle, the acceleration of which at the correct moment, with respect to its position in relation to the perforation of the strip of bag material, provides it with the same speed and direction of movement as the strip while applying it securely to the latter, is composed essentially of two freely rotatable rollers each applied to one of the arms of the handle. These rollers are mounted on two levers disposed side by side, which through an appropriate mechanism receive a movement such that the geometric locus of their lowest point describes a curve ensuring the placing of the rollers above the arms of the handles, in order to bear upon them and seat them on the unwinding paper strip, while effecting an accompanying movement.
  • This appropriate mechanism can be composed of a fixed shaft with two similarly fixed earns, a rotating cam and an oscillating shaft the movement of which is controlled from the rotating cam through a system of levers.
  • the fixed cam can be replaced by a system of connecting rods imparting an approximately identical movement to the rollers but with greater smoothness of operation.
  • the nozzles and blower 15 for blowing compressed air on the arms which ensure the truly flat depositing of the handles when the roller carries out its movement in the direction of the drum, are disposed beside these rollers and directed obliquely.
  • a process for the continuous manufacture in one simple operation of bags of paper material having attached fiat handles comprising the steps of unwinding a strip of bag material from a reel,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
US617133A 1966-10-21 1967-02-20 Manufacture of paper and like bags with attached flat handles Expired - Lifetime US3494264A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8726A FR1497821A (fr) 1966-10-21 1966-10-21 Sacs en papier ou matière similaire à poignées plates rapportées et leur procédé de fabrication en continu

Publications (1)

Publication Number Publication Date
US3494264A true US3494264A (en) 1970-02-10

Family

ID=9694066

Family Applications (1)

Application Number Title Priority Date Filing Date
US617133A Expired - Lifetime US3494264A (en) 1966-10-21 1967-02-20 Manufacture of paper and like bags with attached flat handles

Country Status (4)

Country Link
US (1) US3494264A (fr)
DE (1) DE1561434C3 (fr)
FR (1) FR1497821A (fr)
GB (1) GB1153738A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590696A (en) * 1968-05-27 1971-07-06 Windmoeller & Hoelscher Machine for making carrying bags having u-shaped carrying handles
US3722377A (en) * 1969-10-08 1973-03-27 P & B Agencies Proprietary Ltd Bags
US5350350A (en) * 1991-12-06 1994-09-27 Curioni Sun S.R.L. Apparatus for forming and applying handles to bags
US5421805A (en) * 1993-10-01 1995-06-06 Bancroft Bag, Inc. Method and apparatus for producing handled bags
US20160130039A1 (en) * 2013-05-24 2016-05-12 Windmöller & Hölscher Kg Bag, method for the production of a bag and machine system for the production of a bag

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1762857A (en) * 1929-03-09 1930-06-10 A M Eaton Paper Company Device for positioning string handles on paper bags
US2224040A (en) * 1937-06-17 1940-12-03 A M Eaton Paper Company Machine for positioning string handles on bags
US2533642A (en) * 1949-01-19 1950-12-12 Pneumatic Scale Corp Lined container forming machine
US2586514A (en) * 1948-12-30 1952-02-19 Equitable Paper Bag Co Method of making carry bags
US2605195A (en) * 1949-10-29 1952-07-29 Wingfoot Corp Method and apparatus for building tires
US2661582A (en) * 1951-12-15 1953-12-08 Nat Oats Company Tear-cord applying machine and method
US3079144A (en) * 1958-07-09 1963-02-26 Bobst And Son S A J Folding and gluing machines operating on sheets
US3424067A (en) * 1965-06-23 1969-01-28 Coloroll Ltd Handle forming machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1762857A (en) * 1929-03-09 1930-06-10 A M Eaton Paper Company Device for positioning string handles on paper bags
US2224040A (en) * 1937-06-17 1940-12-03 A M Eaton Paper Company Machine for positioning string handles on bags
US2586514A (en) * 1948-12-30 1952-02-19 Equitable Paper Bag Co Method of making carry bags
US2533642A (en) * 1949-01-19 1950-12-12 Pneumatic Scale Corp Lined container forming machine
US2605195A (en) * 1949-10-29 1952-07-29 Wingfoot Corp Method and apparatus for building tires
US2661582A (en) * 1951-12-15 1953-12-08 Nat Oats Company Tear-cord applying machine and method
US3079144A (en) * 1958-07-09 1963-02-26 Bobst And Son S A J Folding and gluing machines operating on sheets
US3424067A (en) * 1965-06-23 1969-01-28 Coloroll Ltd Handle forming machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590696A (en) * 1968-05-27 1971-07-06 Windmoeller & Hoelscher Machine for making carrying bags having u-shaped carrying handles
US3722377A (en) * 1969-10-08 1973-03-27 P & B Agencies Proprietary Ltd Bags
US5350350A (en) * 1991-12-06 1994-09-27 Curioni Sun S.R.L. Apparatus for forming and applying handles to bags
US5421805A (en) * 1993-10-01 1995-06-06 Bancroft Bag, Inc. Method and apparatus for producing handled bags
US20160130039A1 (en) * 2013-05-24 2016-05-12 Windmöller & Hölscher Kg Bag, method for the production of a bag and machine system for the production of a bag
US10131469B2 (en) * 2013-05-24 2018-11-20 Windmöller & Hölscher Kg Bag, method for the production of a bag and machine system for the production of a bag

Also Published As

Publication number Publication date
DE1561434C3 (de) 1974-04-04
DE1561434A1 (de) 1970-04-02
DE1561434B2 (de) 1973-09-06
GB1153738A (en) 1969-05-29
FR1497821A (fr) 1967-10-13

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