EP0939739B1 - Dispositif d'alimentation en feuilles du tambour transporteur de feuilles d'une machine a imprimer - Google Patents

Dispositif d'alimentation en feuilles du tambour transporteur de feuilles d'une machine a imprimer Download PDF

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Publication number
EP0939739B1
EP0939739B1 EP97949860A EP97949860A EP0939739B1 EP 0939739 B1 EP0939739 B1 EP 0939739B1 EP 97949860 A EP97949860 A EP 97949860A EP 97949860 A EP97949860 A EP 97949860A EP 0939739 B1 EP0939739 B1 EP 0939739B1
Authority
EP
European Patent Office
Prior art keywords
sheet
appliance
gripper
transport element
feeding sheets
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
EP97949860A
Other languages
German (de)
English (en)
Other versions
EP0939739A1 (fr
Inventor
Arndt Jentzsch
Reinhardt Nerger
Victor Hefftler
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 EP0939739A1 publication Critical patent/EP0939739A1/fr
Application granted granted Critical
Publication of EP0939739B1 publication Critical patent/EP0939739B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/05—In-feed 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
    • 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
    • B65H3/0833—Suction grippers separating from the top of pile and acting on the front 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
    • 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
    • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables

Definitions

  • the invention relates to a device for feeding sheets from a stack of feeder sheets to a sheet transport drum Printing press.
  • the uppermost sheet of a stack of sheets is gripped by lifting suction devices placed on the sheet, transported vertically, transferred to transport suction devices and transported in the direction of a feed table (DE 36 34 659).
  • the sheet transported over the feed table for example with belts to the feed marks, is taken over by a pre-gripper equipped with a row of grippers, accelerated to machine speed and transferred to a sheet guide cylinder.
  • This arrangement requires a long feed table and a pivotal pivot point that is shifted in the direction of the sheet feeder and thus a large installation space. Furthermore, there is a short acceleration path of the pre-gripper and correspondingly unfavorable dynamic conditions.
  • the object of the invention is to shorten the installation space, distance Feeder sheet stack / sheet transport drum, with simultaneous enlargement the acceleration path of the forerunner.
  • the task is characterized by the characteristics of the first Claim solved.
  • the uppermost sheet 2 resting on the feeder sheet stack 1 forms a first level 3 / feeder sheet stacking level and the sheet 2 has a gripper edge 4 in the front edge area.
  • the gripper edge 4 usually extends from the front edge of the sheet measured in the direction of the sheet extension over a path of 3 to 5 mm.
  • the sheet 2 is gripped exclusively at this gripper edge 4 and transported from the feeder sheet stack 1 to a sheet transport drum 13.
  • the feeder sheet stack 1 is delimited on the machine side, ie in the sheet running direction 10, by a fixed stop 9 which extends beyond the first level 3.
  • a transport element 8 designed as a suction oscillator is mounted in an oscillation point 7.
  • the transport element 8 is coupled to an oscillating drive, not shown, for example a known cam drive.
  • the oscillation angle ⁇ of the transport element 8 is less than 25 degrees, preferably 10 degrees.
  • the transport element 8 is equipped with lifting suction devices 15 which extend transversely to the sheet running direction 10 and form a suction strip.
  • a device for vertical movement 11 is integrated in the transport element 8.
  • the device for vertical movement 11 has the task of detecting the uppermost sheet 2 at the gripper edge 4 (sheet detection point 19), separating it from the feeder sheet stack 1 and lifting it to a second level 6, which corresponds to the oscillating path of the transport element 8.
  • the lifting suction devices 15 of the transport element 8 are designed as multi-step suction devices, preferably as three-step suction devices.
  • the transport element 8 is equipped with lifting suction devices 15, preferably designed as a two-step suction device, and the transport element 8 is preceded by the device for vertical movement 5, in the form of a multi-step suction device (three-step suction device).
  • the sheet transfer from the device for vertical movement 5, which is arranged above the leading edge area of the sheet, to the transport element 8 takes place in the second plane 6 at the sheet transfer point 21.
  • a feed table 12 Arranged in the sheet running direction 10 in front of the feeder sheet stack 1 is a feed table 12 which adjoins the stop 9 and rises in the sheet running direction.
  • the feed table level, the second level 6 and the oscillating path of the transport element are almost identical.
  • the feed table 12 is delimited by feed marks 16 extending transversely to the sheet running direction 10. These contact marks 16 are pivotable or lowerable and can be controlled from the sheet path.
  • the sheet 2 is detected by means of the device for vertical movement 11, which is designed as a three-stage suction device and is integrated in the transport element 8, in the first plane 3 at the sheet detection point 19, raised to the second plane 6 by the oscillating movement of the transport element 8 to transported to the feed marks 16 and released there to the sheet release point 17.
  • the three-stage suction device is then raised to the third level 18, the transport element 8 swings back into its starting position over the front edge region of the uppermost sheet 2, and the three-stage suction device is lowered to the first level 3 (FIG. 2).
  • the sheet 2 is detected in the first level 3 at the sheet detection point 19 by means of the device for vertical movement 11, which is designed as a three-stage suction device and is arranged upstream of the transport element 8, raised to the second level 6 and to the sheet transfer point 21, which is above the sheet detection point 19 lies in the second level 6 to the lifting suction device of the transport element 8, which is designed as a two-stage suction device.
  • the three-stage suction device of the device for vertical movement 11 is then raised to a third level 18 and then lowered again to the first level 3. Due to the oscillating movement of the transport element 8, the sheet 2 taken over is transported to the application marks 16 and released there to the sheet release point 17.
  • the suction surface of the suction lifter 15 is arranged parallel or almost parallel to the plane of the feed table 12.
  • a pre-gripper 22 is arranged below the plane of the feed table 12.
  • the pre-gripper 22 is also designed as a suction oscillator and can be pivoted about a pivot point 5.
  • the drive of the pre-gripper for example by means of a generally known curve drive, is not shown.
  • the pivot point 5 of the pre-gripper, the sheet release point 20 and the pivot point 7 of the transport element 8 lie on a straight line or almost on a straight line.
  • the sheet transfer from the transport element 8 to the pre-gripper 22 and from the pre-gripper 22 to the sheet transport drum 13 takes place tangentially or almost tangentially.
  • the beginning of the oscillation path of the transport element 8 is also tangential or almost tangential to a parallel plane of the first plane (3), the feeder sheet stack plane.
  • the sheet 2 is aligned by means of alignment means (not shown) on the feed marks 16 arranged transversely to the sheet conveying direction and on side marks (not shown) arranged laterally on the feed table.
  • the sheet is accelerated to machine speed by the pre-gripper 22 and transferred to the grippers of the sheet transport drum 13.
  • the pivot point 5 of the pre-gripper 22 is moved by the arrangement according to the invention - feed table rising in the sheet running direction, transport element designed as a suction rocker, pre-gripper designed as a suction rocker and connecting straight line pivot point 7, sheet release point 17, swing point 7 - in the sheet running direction to the sheet transport drum, whereby the installation space has been extremely shortened and a longer acceleration path of the bow was achieved.

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

Claims (9)

  1. Dispositif d'amenée de feuilles d'une pile de feuilles de margeur à un tambour de transport de feuilles d'une machine à imprimer caractérisé de sorte que soient disposés une table de marge (12) s'élevant devant la pile de feuilles de margeur (1) dans le sens de passage de feuilles (10) et étant directement contiguë à une butée (9) limitant la pile, un élément de transport (8) constitué en tant que balancier transportant la feuille aux taquets de marge (16) de la table de marge au-delà de la zone du rebord avant de la feuille (2) posée sur la pile de feuilles de margeur (1), et une pince préliminaire (22) constituée en tant que balancier transportant la feuille des taquets de marge au tambour de transport de feuilles (13) et de sorte que le point pivot d'oscillations (7) de l'élément de transport (8), le point de libération de la feuille (20)/point de transfert de la feuille (2) de l'élément de transport (8) vers la pince préliminaire et le point de pivotement de la pince préliminaire (22) se trouvent en ligne droite (23) ou à peu près en ligne droite.
  2. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte que le transfert de feuilles de l'élément de transport (8) vers la pince préliminaire (22) et de la pince préliminaire vers le tambour de transport de feuilles (13) se déroule respectivement tangentiellement ou à peu près tangentiellement.
  3. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte que l'angle d'oscillation • de l'élément de transport (8) du point de saisie de la feuille (19) ou selon le cas du point de transfert de la feuille (21) jusqu'au point de libération de la feuille (20) se situe au-dessous de 25 degrés.
  4. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte que l'élément de transport (8) soit constitué en tant que balancier à aspirateurs.
  5. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte que la pince préliminaire (22) soit constituée en tant que balancier à aspirateurs.
  6. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte que le début du parcours de l'élément de transport (8) se trouve à la tangentielle ou à peu près à la tangentielle par rapport à un plan parallèle d'un premier plan (3), le plan de la pile de feuilles de margeur.
  7. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte que l'élément de transport (8) contienne un dispositif pour le mouvement vertical (11) de la feuille (2) à déliasser.
  8. Dispositif d'amenée de feuilles selon la spécification 1 caractérisé de sorte qu' un dispositif pour le mouvement vertical (11) de la feuille (2) à déliasser soit prépositionné par rapport à l'élément de transport (8).
  9. Dispositif d'amenée de feuilles selon la spécification 7 ou 8 caractérisé de sorte que le dispositif pour le mouvement vertical (11) de la feuille soit constitué en tant qu'aspirateurs de levage / aspirateurs à plusieurs niveaux (15).
EP97949860A 1996-10-29 1997-10-28 Dispositif d'alimentation en feuilles du tambour transporteur de feuilles d'une machine a imprimer Expired - Lifetime EP0939739B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19644945 1996-10-29
DE19644945A DE19644945A1 (de) 1996-10-29 1996-10-29 Einrichtung zum Zuführen
PCT/DE1997/002521 WO1998018703A1 (fr) 1996-10-29 1997-10-28 Dispositif d'alimentation en feuilles du tambour transporteur de feuilles d'une machine a imprimer

Publications (2)

Publication Number Publication Date
EP0939739A1 EP0939739A1 (fr) 1999-09-08
EP0939739B1 true EP0939739B1 (fr) 2001-05-30

Family

ID=7810319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97949860A Expired - Lifetime EP0939739B1 (fr) 1996-10-29 1997-10-28 Dispositif d'alimentation en feuilles du tambour transporteur de feuilles d'une machine a imprimer

Country Status (3)

Country Link
EP (1) EP0939739B1 (fr)
DE (2) DE19644945A1 (fr)
WO (1) WO1998018703A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100391747C (zh) * 2004-02-25 2008-06-04 理想科学工业株式会社 模版印刷机
DE102006020907A1 (de) * 2006-05-05 2007-11-08 Man Roland Druckmaschinen Ag Bogendruckmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE614043C (de) * 1933-01-29 1935-05-31 Vomag Betr S A G Bogenanlegevorrichtung fuer Druckmaschinen
US2698175A (en) * 1946-09-14 1954-12-28 Chandler & Price Co Sheet feeding mechanism
DE1091581B (de) * 1958-11-26 1960-10-27 Wilhelm Ritzerfeld Offsetdruckmaschine mit einer Steuervorrichtung fuer das Zusammenwirken der Druckelemente zur Zeilenauswahl
DE1124518B (de) * 1960-12-20 1962-03-01 Mabeg Maschb G M B H Bogenanleger mit Vorblaesern und pneumatischen Trennmitteln
CS253506B1 (en) * 1985-10-10 1987-11-12 Jaroslav Jiruse Loading equipment

Also Published As

Publication number Publication date
WO1998018703A1 (fr) 1998-05-07
DE19644945A1 (de) 1998-04-30
DE59703696D1 (de) 2001-07-05
EP0939739A1 (fr) 1999-09-08

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