EP0803457B1 - Dispositif pour séparer et soulever la feuille de dessus d'une pile de feuilles - Google Patents

Dispositif pour séparer et soulever la feuille de dessus d'une pile de feuilles Download PDF

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Publication number
EP0803457B1
EP0803457B1 EP97106151A EP97106151A EP0803457B1 EP 0803457 B1 EP0803457 B1 EP 0803457B1 EP 97106151 A EP97106151 A EP 97106151A EP 97106151 A EP97106151 A EP 97106151A EP 0803457 B1 EP0803457 B1 EP 0803457B1
Authority
EP
European Patent Office
Prior art keywords
sheet
stripping element
sheet pile
carrier
feed direction
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
EP97106151A
Other languages
German (de)
English (en)
Other versions
EP0803457A2 (fr
EP0803457A3 (fr
Inventor
Peter Eilitz
Herbert Herrmann
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0803457A2 publication Critical patent/EP0803457A2/fr
Publication of EP0803457A3 publication Critical patent/EP0803457A3/fr
Application granted granted Critical
Publication of EP0803457B1 publication Critical patent/EP0803457B1/fr
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
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile

Definitions

  • the invention relates to a device for separating and lifting of the top sheet, especially the top sheet, of one Sheet stack, with a sheet detection device for cyclical detection and Lift the top sheet, as well as one on the back edge of the one certain amount of raised top arc Scraper device which has a scraper element with a sliding ramp, which by the trailing edge of the top sheet when lifting it against a spring force from a near the sheet stack to a certain dimension above the stack of sheets in a resting position Deflection position spaced apart until the rear edge snaps into place can be moved approximately horizontally via the stripping element.
  • the stripping element a pivotable lever is arranged in the sheet conveying direction is spring loaded and has a stop with which it is not deflected state in the back of the sheet stack in plant.
  • This device has the disadvantage that after each stripping and Further conveying process of the raised top bow of the levers with his Bouncing against the back of the spring force Sheet stack is moved.
  • From DE-PS 923 132 is a device for separating and feeding of sheets of paper, etc. on printing, painting and folding machines.
  • the sheet separation device has a stop, which is in the upper Area of the rear side of the stack on a sheet stack is adjustable.
  • the Stop has a smooth stop surface.
  • DE-PS 585 514 is a device for producing Cover covers for books, notebooks or the like.
  • fixed side stops parallel to the sheet conveying direction are assigned to a sheet stack.
  • the side stops are not set against the sheet stack and have sprung sheets that can be set against the sheet stack and have retaining tongues at their upper end.
  • DE 43 44 474 C1 is a label magazine for labeling machines known.
  • the label magazine is laterally parallel to the sheet conveying direction enclosed by adjustable hook holders.
  • the object of the invention is a device of the type mentioned create that works quietly and gently.
  • a carrier in the upper rear area under spring force is in contact with the sheet stack, with the stripping element being movably guided on the carrier between its rest position and deflection position, that the stripping element is spring-loaded relative to the carrier in its rest position in the direction of the sheet stack is, and that the stripping element in its rest position the bearing surface of the carrier on the sheet stack in the sheet conveying direction to a certain extent. Since only the stripping element is moved during operation, the moving masses are small and cause only little noise when they move back into their rest position. Impact of a moving component on the back of the sheet stack is avoided, so that the sheets are not damaged as a result.
  • the small moving masses also mean that the device can be constructed from light components of small size, since no greater forces have to be absorbed.
  • the carrier can be against the back of the stack must be spring loaded.
  • the carrier can be designed as a lever be at one end approximately above that rear end portion of the sheet stack by one across Sheet conveying direction swiveling pivot axis and with its other free end on the sheet stack is in plant.
  • a simple device with few components less Size is reached when the scraper element is in one directed in the sheet conveying direction and to the sheet stack arranged open guide recess of the carrier is and in its rest position to a certain extent protrudes from the guide recess in the sheet conveying direction.
  • the preload of the compression spring is adjustable, this can be done in a simple manner by that the compression spring facing away from the stripping element End at an adjustable in the sheet conveying direction Adjusting screw is supported, depending on the The quality of the sheet to be conveyed is the optimum at which Separation force to be overcome can be set.
  • the compression spring is a coil spring.
  • the wiper element is a ball, it is largely no frictional forces and no tilting forces in addition to the spring forces when deflecting the wiper element to overcome the actually the amount of overwhelming forces. About that In addition, the size can be achieved through this training of the wiping element kept optimally low and the Guide recess can be easily made as a bore.
  • the device shown has a carrier 1, which is in the upper rear area of a stack of sheets 2 extends approximately vertically and not at its shown upper area about above the rear End region of the sheet stack 2 by a transverse to the sheet conveying direction 3 directional swivel axis is.
  • the carrier 1 At its free downward end the carrier 1 is designed as a scraper block 4, the with its side directed in the sheet conveying direction 3 at the upper rear area of the sheet stack 2 a compression spring 5 is held in high force.
  • the scraper block is used to prevent damage to the bends 4 at its lower end with one from Sheet stack 2 provided oblique slope 6.
  • scraper block 4 is approximately in the sheet conveying direction 3 directional, continuous guide recess 7 formed in their in the sheet conveying direction 3rd rear area a threaded hole 8 and in its in Sheet conveying direction 3 front area a bore 9 with a smooth wall.
  • the opening of the bore 10 has one opposite the diameter of the bore 9 reduced cross section, for a ball arranged in the bore 9 11 approximately the same diameter as the bore 9 forms a stop.
  • the Ball 11 which is a scraper for the raised Arch forms only about a third of their diameter protrude from the hole 9 in the sheet conveying direction 3.
  • the adjusting screw 12 is the Bias of the coil spring 13 and thus the force to Deflection of the ball 11 adjustable.
  • an Clock of a sheet processing machine approximately vertically up and down movable separator 14 arranged by which the top sheet 15 of the sheet stack 2 can be detected and can be raised.
  • Sheet 15 is shown in Figure 1. Since the ball is over the degree to which they leave their guide recess 7 looks out, in the sheet conveying direction 3 over the sheet stack 2 protrudes, the further lifting of the Sheet 15 through its rear edge 16 to an application the ball 11.
  • the upper sheet 15, however, is further raised and can be fed to a conveyor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Pile Receivers (AREA)

Claims (10)

  1. Dispositif pour séparer et soulever la feuille la plus supérieure, en particulier la feuille de tôle la plus supérieure, d'une pile de feuilles, comportant un dispositif de détection de feuille pour détecter et soulever, de façon cyclique, la feuille la plus supérieure, ainsi qu'un dispositif d'enlèvement agissant sur le bord arrière de la feuille la plus supérieure soulevée d'une valeur déterminée, lequel possède un élément d'enlèvement ayant une rampe de glissement, qui est déplaçable sensiblement horizontalement par le bord arrière de la feuille la plus supérieure lors de son soulèvement à l'encontre d'une force élastique d'une position de repos à proximité de la pile de feuilles, en saillie au-dessus de la pile de feuilles d'une valeur déterminée, dans une position déviée écartée de la pile de feuilles, jusqu'à engager le bord arrière par l'intermédiaire de l'élément d'enlèvement,
    caractérisé en qu'un support (1) est en appui dans la zone arrière supérieure sous une force élastique contre la pile de feuilles (2), l'élément d'enlèvement étant guidé de façon déplaçable entre sa position de repos et sa position déviée sur le support (1), en ce que l'élément d'enlèvement est sollicité de façon élastique par rapport au support (1) dans sa position de repos en direction de la pile de feuilles (2), et en ce que l'élément d'enlèvement, dans sa position de repos, fait saillie d'une valeur donnée de la surface d'appui du support (1) contre la pile de feuilles (2) dans la direction de transport des feuilles (3).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le support (1) est réalisé comme levier qui peut pivoter, à une extrémité, sensiblement au-dessus de la zone d'extrémité arrière de la pile de feuilles (2) autour d'un axe de pivotement orienté transversalement à la direction de transport des feuilles (3) et, par son autre extrémité libre, est en appui contre la pile de feuilles (2) sous une force élastique.
  3. Dispositif selon une des revendications précédentes,
    caractérisé en ce que l'élément d'enlèvement est agencé de façon mobile en étant sollicité par un ressort dans un évidement de guidage (7), orienté dans la direction de transport des feuilles (3) et ouvert vers la pile de feuilles (2), du support (1), duquel il fait saillie, dans sa position de repos, d'une valeur déterminée dans la direction de transport des feuilles (3).
  4. Dispositif selon la revendication 3,
    caractérisé en ce que l'élément d'enlèvement est sollicité dans la direction de transport des feuilles (3) par un ressort de pression (13) agencé dans l'évidement de guidage (7).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que la précontrainte du ressort de pression (13) est réglable.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que le ressort de pression (13) s'appuie, par son extrémité opposée à l'élément d'enlèvement, contre une vis de réglage (12) réglable dans la direction de transport des feuilles (3).
  7. Dispositif selon la revendication 4,
    caractérisé en ce que le ressort de pression (13) est un ressort hélicoïdal.
  8. Dispositif selon une des revendications précédentes,
    caractérisé en ce que l'élément d'enlèvement est une bille (11).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que la bille (11) peut faire saillie de l'évidement de guidage (7) d'environ un tiers de son diamètre dans la direction de transport (3).
  10. Dispositif selon la revendication 8,
    caractérisé en ce qu'au moins la surface de la bille (11) est durcie.
EP97106151A 1996-04-24 1997-04-15 Dispositif pour séparer et soulever la feuille de dessus d'une pile de feuilles Expired - Lifetime EP0803457B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19616333A DE19616333C2 (de) 1996-04-24 1996-04-24 Vorrichtung zum Trennen und Anheben des obersten Bogens von einem Bogenstapel
DE19616333 1996-04-24

Publications (3)

Publication Number Publication Date
EP0803457A2 EP0803457A2 (fr) 1997-10-29
EP0803457A3 EP0803457A3 (fr) 1998-04-01
EP0803457B1 true EP0803457B1 (fr) 2000-01-19

Family

ID=7792286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106151A Expired - Lifetime EP0803457B1 (fr) 1996-04-24 1997-04-15 Dispositif pour séparer et soulever la feuille de dessus d'une pile de feuilles

Country Status (3)

Country Link
EP (1) EP0803457B1 (fr)
JP (1) JP2891958B2 (fr)
DE (2) DE19616333C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6701028B2 (ja) * 2016-08-10 2020-05-27 テクノエイト株式会社 シート材分離装置
JP7132199B2 (ja) * 2019-09-30 2022-09-06 フタバ産業株式会社 板材搬送システム
DE102022107710A1 (de) 2022-03-31 2023-10-05 Kolbus Gmbh & Co. Kg Vorrichtung zum Vereinzeln eines zuoberst liegenden Bogens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE576117C (de) * 1931-09-20 1933-05-08 Praktische Maschinen G M B H Vorrichtung zum Herstellen von Einbanddecken fuer Buecher, Notizbuecher o. dgl.
DE585514C (de) * 1932-11-06 1933-10-04 Praktische Maschinen G M B H Vorrichtung zum Herstellen von Einbanddecken fuer Buecher, Notizbuecher o. dgl.
US2722416A (en) * 1950-05-10 1955-11-01 Backhouse Headley Townsend Separation of sheets of paper or the like from the top of a pile
DE923132C (de) * 1952-06-29 1955-02-03 Mabeg Maschb G M B H Vorrichtung zum Vereinzeln und zum Zufuehren von Bogen aus Papier usw. an Druck-, Lackier- und Falzmaschinen
JPS55140444A (en) * 1979-04-18 1980-11-01 Kingo Ishikawa Auxiliary stripping device for sheet paper
US5183242A (en) * 1991-08-30 1993-02-02 D&K Custom Machine Design, Inc. Method and apparatus for feeding sheets
DE4344474C1 (de) * 1993-12-21 1995-01-05 Anker Maschbau Etikettenmagazin für Etikettiermaschinen

Also Published As

Publication number Publication date
EP0803457A2 (fr) 1997-10-29
DE59701024D1 (de) 2000-02-24
DE19616333C2 (de) 2001-07-12
DE19616333A1 (de) 1997-11-06
JP2891958B2 (ja) 1999-05-17
JPH1035929A (ja) 1998-02-10
EP0803457A3 (fr) 1998-04-01

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