EP1975099B1 - Alimenteur de feuilles d'une presse à feuilles - Google Patents

Alimenteur de feuilles d'une presse à feuilles Download PDF

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Publication number
EP1975099B1
EP1975099B1 EP08153567A EP08153567A EP1975099B1 EP 1975099 B1 EP1975099 B1 EP 1975099B1 EP 08153567 A EP08153567 A EP 08153567A EP 08153567 A EP08153567 A EP 08153567A EP 1975099 B1 EP1975099 B1 EP 1975099B1
Authority
EP
European Patent Office
Prior art keywords
sheet
transport
printing machine
machine according
feeder
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 - Fee Related
Application number
EP08153567A
Other languages
German (de)
English (en)
Other versions
EP1975099A2 (fr
EP1975099A3 (fr
Inventor
Arndt Jentzsch
Hartmut Nagel
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1975099A2 publication Critical patent/EP1975099A2/fr
Publication of EP1975099A3 publication Critical patent/EP1975099A3/fr
Application granted granted Critical
Publication of EP1975099B1 publication Critical patent/EP1975099B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • 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
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • 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
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/226—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5124—Stretching; Tentering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/20—Acceleration or deceleration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a sheet feeder of a sheet-fed press, comprising a sheet stack and a device for separating and feeding sheets to the sheet-fed press, this means having means for separating the uppermost sheet from the sheet stack, a conveyor for transporting the sheet relative to the sheet stack above it. Furthermore, a transport device for taking over the sheet from the conveyor and for transfer to a suitable for supplying the sheet to the sheet-fed press sheet transport device is provided.
  • the respective uppermost sheet of a sheet pile is detected and raised for separating from the one extractable lifting suction extraction in the region of the sheet trailing edge.
  • the isolated sheet is transferred to transport suction, which transport the sheet in the sheet transport direction to the conveyor.
  • the clock rollers of the conveyor are controlled against a transport roller, so that the sheet can be detected by the active pairing clock rollers / transport roller. After releasing the sheet from the transport suckers of the clamped between the transport roller and the clock rollers sheet is conveyed to a belt table, guided by this against the sheet of the sheet pivotable front brands and so aligned with the leading edge.
  • the aim is that the sheet to be aligned arrives at the leading brands with the least possible imbalance, since the oblique sheet correction adversely affects the overall productivity of the printing press.
  • a solution is presented in which position errors of the sheets are to be compensated for when transferring to transport rollers.
  • a suction cup provided with transport suckers the sheet feeder, in which the sheet during a transfer phase from the transport suckers to the transport roller or to the clock roller performs no relative movement to the transport suckers.
  • the suction head of the transport suction is performed by a drive approximately parallel to the transport direction of the sheet and arranged to an additional, beyond a positive displacement generated by the drive way in the transport direction against a spring force movable.
  • the speed of the transport suction is in this case smaller than the transport speed of a gripped by the transport roller sheet, so that an extension of the sheet takes place and ensures a better sheet transport, especially for thin sheets.
  • the invention has for its object to provide a sheet feeder with a device for separating and feeding sheets to a sheet-fed press, which guarantees a streamlining of the sheet in the transfer to the clock roller / transport roller and thus an exact location in the further processing.
  • a sheet feeder 1 is shown with an existing sheet of sheet 9 pile 3.
  • the sheet stack 3 rests on a stacking plate 31. This is held by conveyors 33 in the form of ropes or chains, which are articulated on the frame 2 of the sheet feeder 1 and operated by a lift, not shown.
  • the sheet stack 3 rests with its front edge 34 on a stack stop.
  • a sheet separator 4 is arranged in the region of the trailing edge 35 of the sheet stack 3.
  • the sheet separator 4 contains separating suction 41 and transport suction 42.
  • the separating suckers 41 perform a lifting movement for separating the uppermost sheet 9 from the sheet stack 3 from.
  • the separating suction 41 perform a translational movement in and against the sheet transport direction T from. Separating suction 41 and transport suction 42 are arranged at intervals next to each other transversely to the sheet transport direction T.
  • a flap shaft 32 extending over the width thereof is provided. This is arranged in the upper region of the sheet stack 3 and can be pivoted from a vertical position in the counterclockwise direction.
  • the flap shaft 32 is arranged downstream of a transport device 7, which consists of a permanently driven, over the width of the sheet stack 3 extending transport roller 72 and a plurality of clock rollers 71.
  • Each of the clock rollers 71 is rotatably mounted at the end of a lever 73 and hinged at a frame point 74 pivotally.
  • the transport roller 72 is formed as a suction roller and also clocked operable.
  • the transport device 7 is followed by an approximately horizontally extending guide plate 6, to which an inclined belt table 5 is arranged downstream.
  • FIG. 2 It can be seen that between the flap shaft 32 and the transport device 7, a further conveying member in the form of a suction roller 8 is arranged.
  • the suction roller 8 is supplied with suction air for detecting and holding the sheet 9, but rotates continuously.
  • the suction air can also be clocked.
  • the 9 imposed by the transport sucker 42 to the sheet transport speed v 1 is below the by the suction roller 8 mediated transport speed V2.
  • the respective uppermost sheet 9 of the sheet stack 3 is detected by the separating suckers 41 in the region of the trailing edge of the sheet and separated from the subsequent sheet. This is supported by blowing devices, not shown, which lead blowing air between the uppermost sheet 9 and the next sheet.
  • the floating in its entirety sheet 9 is passed from the separating suckers 41 to the transport suction 42, which lead them with the transport speed v 1 in the sheet transport direction T.
  • the flap shaft 32 is pivoted counterclockwise, so that the sheet 9 passes with its free end in the region of the suction roller 8 and is detected by this.
  • the sheet 9 experiences the higher transport speed v 2 . This has the consequence that this is tightened and passes in this form between the transport roller 72 and the lifted from the transport roller 72 clock rollers 71.
  • the clock rollers 71 are now performed by acting on the lever 73 (not shown here) control elements against the transport roller 72 , As a result, the sheet 9 is clamped between the clock rollers 71 and the transport roller 72 and thus guided over the guide plate 6 to the belt table 5.

Landscapes

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

Claims (12)

  1. Alimenteur de feuilles d'une machine d'impression feuille à feuille recevant une pile de feuilles (3) et ayant une installation pour séparer les feuilles (9) et alimenter la machine d'impression feuille à feuille,
    * cette installation comportant des moyens pour séparer la feuille supérieure (9) de la pile (3), une installation de transfert pour transporter la feuille (9) par dessus la pile (3) et une installation de transport (7) pour reprendre la feuille (9) de l'installation de transfert et pour la transférer à une installation de transport fournissant la feuille (9) à la machine d'impression feuille à feuille,
    alimenteur de feuilles caractérisé en ce que
    l'installation de transport (7) est précédée d'un organe de transfert pour saisir et transporter la feuille (9) de façon que la vitesse de transport (v2) communiquée à la feuille (9) par l'organe de transfert soit supérieure à la vitesse de transport (v1) de l'installation de transfert transportant la feuille par dessus la pile de feuilles (3), de façon à tendre la feuille (9).
  2. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'organe de transfert est un cylindre aspirant (8).
  3. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 2,
    caractérisé en ce que
    le cylindre aspirant (8) est soumis à une aspiration d'air cadencée.
  4. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'organe de transfert se compose d'une série de ventouses installées transversalement à la direction de transport de feuilles (T).
  5. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'organe de transfert se compose d'une série de pinces installées transversalement à la direction de transport de feuilles (T).
  6. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    les moyens pour séparer la feuille supérieure (9) de la pile (3) sont associés à l'arête arrière (35) de la pile de feuilles (3) selon la direction de transport (T) des feuilles.
  7. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1 ou 6,
    caractérisé en ce que
    les moyens pour séparer la feuille supérieure (9) de la pile (3) sont constitués par une rangée de ventouses (41) installées transversalement.
  8. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'installation de transfert est associée à l'arête arrière (35) de la pile de feuilles (3) pour transporter la feuille (9) à la vitesse de transport (v1) par rapport à la pile de feuilles (3) dans la direction de transport de feuilles (T).
  9. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1 ou 8,
    caractérisé en ce que
    l'installation de transfert pour transporter la feuille (9) est réalisée par une rangée de ventouses (42) installées transversalement.
  10. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'installation de transport (7) fonctionne de manière cadencée.
  11. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'installation de transport (7) comporte au moins deux rouleaux de cadencement (71) arrivant en coopération avec un cylindre de transport (72) selon une cadence prédéfinie.
  12. Alimenteur de feuilles d'une machine d'impression feuille à feuille selon la revendication 1,
    caractérisé en ce que
    l'installation d'alimentation en feuilles de la machine d'impression, comporte une table à bandes transporteuses (5).
EP08153567A 2007-03-30 2008-03-28 Alimenteur de feuilles d'une presse à feuilles Expired - Fee Related EP1975099B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007015341A DE102007015341A1 (de) 2007-03-30 2007-03-30 Bogenanleger einer Bogendruckmaschine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
DE102007015341 Previously-Filed-Application 2007-03-30

Publications (3)

Publication Number Publication Date
EP1975099A2 EP1975099A2 (fr) 2008-10-01
EP1975099A3 EP1975099A3 (fr) 2010-08-11
EP1975099B1 true EP1975099B1 (fr) 2012-05-02

Family

ID=39628906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08153567A Expired - Fee Related EP1975099B1 (fr) 2007-03-30 2008-03-28 Alimenteur de feuilles d'une presse à feuilles

Country Status (2)

Country Link
EP (1) EP1975099B1 (fr)
DE (1) DE102007015341A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017210690A1 (de) 2017-06-26 2018-12-27 Koenig & Bauer Ag Bogenanleger für eine Druckmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6378476B2 (ja) * 2013-10-03 2018-08-22 三菱重工機械システム株式会社 給紙装置及び給紙方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD271679A1 (de) * 1988-05-02 1989-09-13 Polygraph Leipzig Bogenfuehrung in bogenanlegern
DD273416A1 (de) * 1988-06-29 1989-11-15 Polygraph Leipzig Vorrichtung zum fliessenden transport von bogen
DE4122947A1 (de) * 1991-07-11 1993-01-21 Fischer Hermann Dipl Ing Fh Vorrichtung zur optimierung der bogenanlage und verfahren zur reduzierung des einlaufdoublierens
DE4447204C2 (de) 1994-12-30 1999-05-12 Koenig & Bauer Ag Saugkopf
DE19511296C2 (de) * 1995-03-28 1999-07-15 Gremser Masch Franz Vorrichtung zum Anheben und Abtransportieren flächiger Gegenstände
DE19755518C2 (de) * 1997-12-13 2000-09-21 Koenig & Bauer Ag Verfahren und Vorrichtung zum Zuführen von Bogen
DE10023498C1 (de) * 2000-05-13 2002-01-10 Gremser Masch Franz Saugwalze
DE10258416A1 (de) 2002-12-13 2004-06-24 Koenig & Bauer Ag Einrichtung zum Vereinzeln und Zuführen von Bogen
DE10315648A1 (de) * 2003-04-04 2004-10-14 Heidelberger Druckmaschinen Ag Vorrichtung zum blattweisen Zuführen von blattförmigen Bedruckstoffen von einem Stapel zu einem Transportpfadeingang

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017210690A1 (de) 2017-06-26 2018-12-27 Koenig & Bauer Ag Bogenanleger für eine Druckmaschine

Also Published As

Publication number Publication date
EP1975099A2 (fr) 2008-10-01
DE102007015341A1 (de) 2008-10-02
EP1975099A3 (fr) 2010-08-11

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