US3602495A - Device for the removal of sheets,inserts or the like released from a roller frame - Google Patents

Device for the removal of sheets,inserts or the like released from a roller frame Download PDF

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Publication number
US3602495A
US3602495A US820796A US3602495DA US3602495A US 3602495 A US3602495 A US 3602495A US 820796 A US820796 A US 820796A US 3602495D A US3602495D A US 3602495DA US 3602495 A US3602495 A US 3602495A
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US
United States
Prior art keywords
sheets
drum
roller
speed
roller frame
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
US820796A
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English (en)
Inventor
Rudolf Hepp
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3602495A publication Critical patent/US3602495A/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
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/023—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between a pair of belts forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • B65H2406/331—Rotary suction means, e.g. roller, cylinder or drum arranged for rotating while moving along material to be handled, e.g. rolling on material
    • B65H2406/3312—Rotary suction means, e.g. roller, cylinder or drum arranged for rotating while moving along material to be handled, e.g. rolling on material arranged for planetary movement on rotary support means

Definitions

  • Ross ABSTRACT A device for the removal of sheets from a stack on a roller frame comprising a plurality of rollers mounted on the frame and which rotate in a different sense from the sense of rotation of the roller frame, the said rollers being provided with suction grippers which remove the sheets from the stack and feed them to a conveying means, the speed of whieh is independent of the rotational speed of the roller frame.
  • the invention relates to a device for the removal of sheets, inserts or the like released from a roller frame.
  • Roller frames or drums serve the purpose of removing individual sheets or inserts successively from a stack consisting of sheets, inserts or the like and feed them for further processing.
  • Roller frames are known which possess a plurality of individual rollers provided with suction grippers and which revolve in the opposite sense to the sense of rotation of the roller frame. Upon passing the stack, the roller seizes with its suction grippers the front edge of an insert, winds this latter around itself upon forward movement of the roller frame and delivers it at a release point to a gripping appliance, which conducts the'insert out of the roller frame.
  • Known removal devices are also equipped with suction or mechanical grippers, which take over and forward the sheet or insert upon its release by the roller of the roller frame. Since they have to take over the consecutive sheets or inserts, these removal devices naturally have to work at a speed equal to the rotational speed of the roller frame, so that the sheet released from the roller frame has to be carried off at a conveying speed equal to the peripheral speed of the roller frame.
  • An object of the invention is to obviate this disadvantage and to provide a device which makes it possible to remove the sheets or inserts from the roller frame at any desired different conveying speed.
  • this task is solved in that, arranged at the release point of the roller frame, is a conveying means which receives the released sheet or the insert and the speed of which is independent of the rotational speed of the roller frame.
  • a further feature consists in that the speed of the conveying means can be varied during operation.
  • the invention is further distinguished in that the conveying means consists of two superjacent conveyor belts.
  • a lower conveyor belt possesses an independent driving mechanism and lies tangentially against the roller frame in the region of the release point.
  • the lower conveyor belt may comprise several, for example, three, individual belts lying side by side in a spaced-apart relation, and in that the rollers of the roller frame possesses several, for example, four, pulleys which are arranged securely on its shaft and which lie outside the individual belts and which have suction grippers, and several, for example, three, pulleys which engage with the individual belts and which are freely rotatable on the shaft of the roller.
  • FIGS. 1 and 2 signify a representation of the device in different operating conditions
  • FIG. 3 represents a top plan view in accordance with FIG. 1;
  • FIG. 4 denotes a diagrammatic representation of the conveying means driven at an increased speed
  • FIG. 5 denotes a diagrammatic representation of the conveying means driven at a reduced speed.
  • FIGS. 1 to 3 show the destacking device of the invention, in which a stack, consisting of sheets or inserts, rests on the upper side of the periphery of a roller frame or drum 1, which rotates in the clockwise sense.
  • the roller frame is equipped with three angularly spaced suction rollers (roller assemblies) 2, which rotate counterclockwise with their shafts 14 about their axes.
  • Each suction roller 2 is equipped with a suction gripper 3, which, as is shown in FIGS. 1 and 2, draws off the bottommost sheet A of the stack in accordance with FIG. 1 and winds it around itself in accordance with FIG. 2.
  • the suction roller 2 arrives in the right-hand position in accordance with FIG. 1, the sheet A is released at the periphery of the roller frame 1.
  • a conveying arrangement is provided for the removal of the released sheet A, which consists of a lower endless conveyor belt 4 and an upper endless conveyor belt 10.
  • the lower conveyor belt 4 lies tangentially against the roller frame 1 in the region of the release point; it is actuated by a driving mechanism, which can be set to any desired conveying speed.
  • the lower conveyor belt 4 possesses the deflection rollers 5 and 7 and a pressure roller 8.
  • the upper conveyor belt 10 rests in the region of the driving mechanism 6 on the lower conveyor belt 4; it does not possess its own drive, but is entrained by the lowerconveyor belt 4.
  • the upper conveyor belt possesses the deflection rollers l1, 12, 13.
  • the driving mechanism 6 of the lower conveyor belt 4 consists of three driving rollers 18, 19, 20 which are in spaced-apart relation and which are arranged securely on the driving shaft 21.
  • the suction roller 2 possesses four pulleys (2a to 2d) which lie outside and between the conveyor belts l8, 19, 20 and which are arranged securely on its shaft 14 and each of which carries a suction gripper 3.
  • Arranged to rotate freely on the shaft 14 of the suction roller 2 are three pulleys l5, 16, 17 which engage with the conveyor belts bands 18, 19, 20.
  • the lower conveyor belt 4 is driven at a greater speed than the peripheral speed of the roller frame, gaps arise between the individual sheets A conveyed on the lower belt 4.
  • the sheets or inserts present thereon are to be interleaved into periodicals, then, as a result of the conveying speed of the sheets A which is greater than the conveying speed of the periodicals (not shown), an accurate interleaving of the sheets A is guaranteed.
  • the conveyor belt 4 runs at a lower conveying speed than the peripheral speed of the roller frame.
  • the individual sheets A on the conveyor belt 4 overlap. Since the speed of the conveyor belt 4 can be varied during operation, individual stacks can be formed on the conveyor belt 4, whereby, between two consecutive stacks, the speed of the conveyor belt 4 is increased for a short period. By this means, there forms between the last sheet(s) A of the first stack and the first sheet(s) of the following stack, a gap in accordance with FIG. 4, so that the individual stacks of partially overlapping sheets A are separated from one another.
  • a destacking apparatus for sheets comprising a roller drum adapted to support a stack of said sheets along its periphery, said drum being rotatable in one sense and being provided with a plurality of angularly spaced roller assemblies along its periphery, each of said assemblies comprising a shaft rotatable in the opposite sense and provided with a plurality of disks axially spaced along the shaft and rotatably entrained therewith while being formed with suction grippers adapted to entrain the lowermost sheet of the stack along with the roller assembly upon movement thereof past the stack by said drum, and a plurality of disks freely rotatable on each shaft and axially spaced from one another and from the rotatably entrained disk of the shaft; and a conveyor assembly disposed adjacent said roller drum for receiving the sheets carried by said roller assembly at a location angularly offset from said stack, said conveyor assembly comprising a plurality of parallel endless conveyor bands spaced apart along the axis of rotation of said drum and communicating same at least at said

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
US820796A 1968-05-29 1969-05-01 Device for the removal of sheets,inserts or the like released from a roller frame Expired - Lifetime US3602495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681761506 DE1761506B1 (de) 1968-05-29 1968-05-29 Vorrichtung zur abfuehrung der von einem walzenstuhl freigegebenen bogen, drucklagen od. dgl

Publications (1)

Publication Number Publication Date
US3602495A true US3602495A (en) 1971-08-31

Family

ID=5696585

Family Applications (1)

Application Number Title Priority Date Filing Date
US820796A Expired - Lifetime US3602495A (en) 1968-05-29 1969-05-01 Device for the removal of sheets,inserts or the like released from a roller frame

Country Status (3)

Country Link
US (1) US3602495A (de)
CH (1) CH490255A (de)
DE (1) DE1761506B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881719A (en) * 1972-10-31 1975-05-06 Alfred Schmermund Sheet feeding arrangement
US5169285A (en) * 1988-03-17 1992-12-08 Grapha-Holding Ag Apparatus for singularizing stacked sheets of paper and the like
US5921546A (en) * 1997-06-02 1999-07-13 Heidelberg Finishing Systems Apparatus for decelerating sheet material while maintaining sheet registration
US20040245697A1 (en) * 2003-05-14 2004-12-09 Heidelberger Druckmaschinen Ag Sheet material feeder
US20070007722A1 (en) * 2004-10-14 2007-01-11 Graphic Management Associates, Inc. Product feeder with accelerator and decelerator devices

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679478A5 (de) * 1989-06-28 1992-02-28 Grapha Holding Ag
DE4416714A1 (de) * 1994-05-11 1995-04-06 Siemens Nixdorf Inf Syst Vereinzeler-Vorrichtung für Einzelblätter insbesondere in einem elektrografischen Druck- oder Kopiergerät
DE10327647B4 (de) * 2003-06-20 2011-05-19 Windmöller & Hölscher Kg Bodenlegevorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080023B (de) * 1957-06-06 1960-04-14 Gottlieb Wiedmann K G Vorrichtung zum Abgeben und Stapeln flacher, im wesentlichen biegsamer Gegenstaende, die einzeln nacheinander anfallen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881719A (en) * 1972-10-31 1975-05-06 Alfred Schmermund Sheet feeding arrangement
US5169285A (en) * 1988-03-17 1992-12-08 Grapha-Holding Ag Apparatus for singularizing stacked sheets of paper and the like
US5921546A (en) * 1997-06-02 1999-07-13 Heidelberg Finishing Systems Apparatus for decelerating sheet material while maintaining sheet registration
US20040245697A1 (en) * 2003-05-14 2004-12-09 Heidelberger Druckmaschinen Ag Sheet material feeder
US7306222B2 (en) * 2003-05-14 2007-12-11 Goss International Americas, Inc. Sheet material feeder
US20070007722A1 (en) * 2004-10-14 2007-01-11 Graphic Management Associates, Inc. Product feeder with accelerator and decelerator devices
US7578501B2 (en) * 2004-10-14 2009-08-25 Muller Martini Mailroom Systems, Inc. Product feeder with accelerator and decelerator devices

Also Published As

Publication number Publication date
DE1761506C2 (de) 1974-08-22
CH490255A (de) 1970-05-15
DE1761506B1 (de) 1974-01-10

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