US2846215A - Device for folding endless bands of paper - Google Patents

Device for folding endless bands of paper Download PDF

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Publication number
US2846215A
US2846215A US418379A US41837954A US2846215A US 2846215 A US2846215 A US 2846215A US 418379 A US418379 A US 418379A US 41837954 A US41837954 A US 41837954A US 2846215 A US2846215 A US 2846215A
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US
United States
Prior art keywords
paper
strip
roll
feed
pinch
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
US418379A
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English (en)
Inventor
Supligeau Charles Le Hippolyte
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.)
Perine Guyot & Cie C Supligeau
Perine-Guyot & Cie-C Supligeau
Original Assignee
Perine Guyot & Cie C Supligeau
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 Perine Guyot & Cie C Supligeau filed Critical Perine Guyot & Cie C Supligeau
Application granted granted Critical
Publication of US2846215A publication Critical patent/US2846215A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/20—Zig-zag folders

Definitions

  • This invention relates to an apparatus for continuously plaiting coiled strip paper stock successively into a series of flattened folds. Paper of this type is more or less widely used on accounting machines, typewriters, adding machines, cash registers and the like.
  • the paper strip stock Before the folding or plaiting operation, the paper strip stock may be printed, coated, or otherwise prepared for its particular use, and of ⁇ course the various preparatory operations are carried out on machines which are separate from the folding apparatus. In some cases the folding operation is performed on a single strip or on several strips stacked together.
  • the presnet invention has as itse primary object the provision of an entirely rotary form of apparatus in which the grippers, blades and the like are eliminated.
  • the distinctive feature of the invention resides in the provision of a pair of juxtaposed feed rollers intended to rotate in opposite directions and having their adjacent peripheries adjusted to form a strip stock feeding pass, the rollers themselves being provided with a vacuum chamber communicating with the periphery of each roller through the medium of suitable atmospheric inlet means disposed longitudinally across the periphery of each roll.
  • the timing of the cycle of each of the rolls is such that normally the atmospheric inlets are disposed approximately 180 apart so that as the strip stock passes between the rolls it will be caused to adhere to first one roll and then the other, and at the appropriate point in the cycle of each roll the strip stock will be directed and pressed into a fold so that as the sheet proceeds between the rolls the folds in the sheet will ⁇ be alternately formed by first one roll and then the other, and the folded paper resulting from this operation may be then led to an appropriate table or conveyor for further treatment.
  • Another object of the invention is to provide means associated with each of the vacuum chambers in the feed rolls to close the atmospheric inlets during that portion of the cycle of each roll which is not operating on the paper.
  • Fig. l is a diagrammatic side elevation of an apparatus made in accordance with the invention.
  • Fig. 2 is a distorted diagrammatic horizontal cross section intended to show the relationship of the feed rollers and the pinch rollers which form the fold in the sheet.
  • Fig. 3 shows the paper strip suction-engaged with the right-hand feed roll.
  • Fig. 4 shows the paper strip in the process of being folded by the pinch cam cooperating with the related feed roll, thereby illustrating the next step in the operation after Fig. 3.
  • Fig. 5 illustrates the paper strip released iby the pinch cam and the right-hand feed roll after having been folded.
  • Fig. 6 shows the paper strip disengaged completely from the right-hand feed roll and the suction inlet of the left-hand feed roll approaching the paper strip.
  • Fig. 7 shows the paper strip suction-engaged by the left-hand feed roll.
  • Fig. 8 shows the paper strip fed by the left-hand feed roll to the point where it is directed and folded by the related pinch cam.
  • Fig. 9 illustrates the paper -strip released by the lefthand feed roll after having been folded, and illustrates the alternate operation and relative position of parts indicated in Fig. 5.
  • Fig. l0 illustrates the paper disengaged completely from the left-hand feed roll, the folding having been formed and the plaited strip moving to the point of assembly.
  • the apparatus essentially includes the rotary feed rollers 1 and 2 whose adjacent peripheries contact to form a pass through which the paper strip 3 is fed continuously. As indicated by the arrows, the feed rolls 1 and 2 rotate in opposite directions.
  • Each of the feed rolls is provided with an atmospheric inlet extending longitudinally thereof, said inlet being preferably constituted by a series of holes 4.
  • the holes 4 in the feed rolls are, in the adjusted positions of the rolls disposed substantially apart.
  • each pinch roller has a radially projecting pinch cam portion 5 and 6.
  • the crown of each pinch cam portion is intended to rst direct the sheet held to a related feed roll by suction, and then pinch the sheet into a fold, as will be apparent from the diagrammatic views, Figs. 3-10 inclusive.
  • the paper strip is released by the feed roller to which it has been adhering so that the plaited strip may pass on downwardly to be stacked as indicated at 14.
  • Each of the feed rolls is provided with a vacuum chamber which communicates with the holes 4, and is also c-onnected to a conventional air pump which will produce a vacuum in said chambers.
  • Each chamber is also provided with a valve or throttling device 7 which at appropriate points in the cycle of operation in each feed roll connects the source of vacuum with the holes 4 or closes said holes, as for example when the sheet is not intended to adhere to particular roll.
  • Suitable strippers 8 and guides 9 are provided between the rollers carrying the pinch cams 5 and 6 and the related feed rolls.
  • Fig. 2 illustrates feed rollers l and 2 having their axes X-X and Y-Y provided with ducts 10 communicating respectively with a lead l1 connected with the vacuum pump and also communicating with the vacuum chambers 12 and 13.
  • Figs. 3-10 inclusive show the successive folding stages of the paper strip 3 as it is acted upon by the related feed rolls and pinch cams.
  • the plaited strip gravitates to the position of the packets 14 owing to the creases 15 formed therein by the action of the related feed rol and pinch cam.
  • the feed rolls 1 and 2 in combination with the pinch cams S and6 operate alternately to effect the folding or plaiting of the paper after the fashionvof a folding screen.
  • the purpose of the pinch cams S and 6 is to disengage the paper strip immediately after it has been folded so as to prevent adhesion of the paper to the roll after the fold has been formed.
  • Fig. 7 the paper strip 3 is about to engage with the suction holes 4 so that the sheet will then be caused to adhere to the left-hand feed roll 1 and carried to the next step which is illustrated in Fig. 8.
  • the paper strip is folded by the cooperation of the crown of the pinch cam 4 with the periphery of the feed roll 1.
  • Fig. 9 shows that paper is released by cylinder 1 after having lbeen folded, and in Fig. 10 the paper is again completely disengaged, that is, the paper is adhesively released, and moves toward the positonof stacking the plaited strip.
  • the forming of the creases 15 can be aided by a suitable blade 16 making a score line on the paper strip in advance of the paper strip being caused to adhere to a related feed roll through the maximrnpof the vacuum pull exerted through holes 4.
  • the score line for the fold may be made before the paper strip is engaged between the feed rollers, it being intended that the score line be made in advance of the strip stock adhering to a related feed roll.
  • the present invention provides for continuously feeding strip stock between a pair of feed rollers to which the strip alternately adheres'by reason of the vacuum pull exerted thereon for a portion of the cycle of each feed roll, vthat is, until the sheet reaches the point Where it is directed into folding position, and the fold itself, is completed vby 4 the action of the crown of a pinch cam.
  • the present apparatus provides a simple and reliable manner of expeditiously forming folds in the sheet as it is continuously moving, and without the intervention of such elements as blades, arms, or the like to effect the folding and plaiting operation.
  • the feed rolls 1 and 2 as well as the pinch rollers carrying the pinch cams 5 and 6 are set and adjusted so as to perform a continuous cycle of movement without interruption of the feeding of the strip between the feed rolls.
  • Apparatus for continuously feeding and creasing strip stock for business machines into a stack comprising a series of attened connected folds, including in combination, a pair of juxtaposed feed rolls rotatable in opposite directions to provide a peripheral stock feeding pass leading to the position of the stack directly below said pass, means in each roll forming a chamber connected with a source of vacuum and having a single elongated atmospheric inlet disposed longitudinally across the periphery of each roll, the inlet Vof each roll lbeing cyclically disposed approximately from the other and having the capacity alternately to cause stock adherence to a related roll, valve means in each roll and turning therewith for closing said inlet when it is not covered by the strip, pinch rollers having their axes mounted in the same perpendicular planes as the axes of the feed rolls and located below said feed rolls to rotate in timed relation thereto and in a direction opposite thereto, pinch cam portions extending radially from and longitudinally of each pinch roller and having their crowns cyclically cooperating with the perip

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  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US418379A 1953-04-13 1954-03-24 Device for folding endless bands of paper Expired - Lifetime US2846215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2846215X 1953-04-13

Publications (1)

Publication Number Publication Date
US2846215A true US2846215A (en) 1958-08-05

Family

ID=9689268

Family Applications (1)

Application Number Title Priority Date Filing Date
US418379A Expired - Lifetime US2846215A (en) 1953-04-13 1954-03-24 Device for folding endless bands of paper

Country Status (4)

Country Link
US (1) US2846215A (fr)
CH (1) CH314931A (fr)
DE (1) DE1010366B (fr)
GB (1) GB759075A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521209A (en) * 1983-04-22 1985-06-04 Paper Converting Machine Company Apparatus and method for transverse folding of webs
US5842964A (en) * 1997-07-01 1998-12-01 Fred Huber & Associates Sheet folding apparatus with vacuum grip
US20030125180A1 (en) * 2001-12-27 2003-07-03 Sosalla Gerald K. Apparatus and method for folding products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909006A1 (de) * 1979-03-08 1980-09-11 Winkler Duennebier Kg Masch Falzvorrichtung zum erzeugen einer zickzackfoermigen bahn aus papier, zellstoff, tissue o.dgl. werkstoff

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1186018A (en) * 1915-11-01 1916-06-06 Meisel Press And Mfg Company Folding-machine.
US2047710A (en) * 1933-11-08 1936-07-14 Fort Howard Paper Co Folding machine
US2165786A (en) * 1937-05-22 1939-07-11 Paper Converting Machine Co Paper napkin machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE212429C (fr) *
DE636666C (de) * 1934-09-29 1936-10-14 August Koenig Dr Ing Kombinierte Zylinder-Vorfalz- und -Zickzackfalzvorrichtungen zum Herstellen wechselseitig gefalteter Formularbaender o. dgl. aus Papierbahnen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1186018A (en) * 1915-11-01 1916-06-06 Meisel Press And Mfg Company Folding-machine.
US2047710A (en) * 1933-11-08 1936-07-14 Fort Howard Paper Co Folding machine
US2165786A (en) * 1937-05-22 1939-07-11 Paper Converting Machine Co Paper napkin machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521209A (en) * 1983-04-22 1985-06-04 Paper Converting Machine Company Apparatus and method for transverse folding of webs
US5842964A (en) * 1997-07-01 1998-12-01 Fred Huber & Associates Sheet folding apparatus with vacuum grip
US20030125180A1 (en) * 2001-12-27 2003-07-03 Sosalla Gerald K. Apparatus and method for folding products

Also Published As

Publication number Publication date
DE1010366B (de) 1957-06-13
CH314931A (fr) 1956-07-15
GB759075A (en) 1956-10-10

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