EP1356932B1 - Dispositif pour l'actionnement d'une pince préliminaire - Google Patents

Dispositif pour l'actionnement d'une pince préliminaire Download PDF

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Publication number
EP1356932B1
EP1356932B1 EP20030006276 EP03006276A EP1356932B1 EP 1356932 B1 EP1356932 B1 EP 1356932B1 EP 20030006276 EP20030006276 EP 20030006276 EP 03006276 A EP03006276 A EP 03006276A EP 1356932 B1 EP1356932 B1 EP 1356932B1
Authority
EP
European Patent Office
Prior art keywords
gripper
gripper system
feed table
guide rails
path
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
EP20030006276
Other languages
German (de)
English (en)
Other versions
EP1356932A3 (fr
EP1356932A2 (fr
Inventor
Arndt Jentzsch
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 EP1356932A2 publication Critical patent/EP1356932A2/fr
Publication of EP1356932A3 publication Critical patent/EP1356932A3/fr
Application granted granted Critical
Publication of EP1356932B1 publication Critical patent/EP1356932B1/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

Definitions

  • the invention relates to a drive device of a pregripper with a gripper system for transporting sheets from a feed table to a sheet holding system of a cylinder, wherein the gripper system describes a rectilinear path during its movement, wherein the gripper system is slidably mounted on guide rails extending at least from the feed table to extend the region of the cylinder.
  • the disadvantage is that additional means must be provided to preclude a collision of the gripper system of the pregripper with the cylinder in the return to the takeover position. Furthermore, it is disadvantageous that the free end of the sheet guided by the sheet-holding elements of the cylinder collides with the gripper system returning to the transfer position, which can lead to damage of a printing on the back or to bow damage.
  • a pre-gripper with a gripper bar is described, which is guided between the feed table and the downstream cylinder on a first circular path.
  • the pre-gripper is mounted in a frame point and is periodically pivoted about this.
  • the frame point is additionally provided with an adjustable eccentricity, so that the return of the gripper system to the feed table takes place on a second circular path, which extends at a distance below the first path.
  • the object of the invention is to modify a generic drive device of a pregripper to the effect that with simple means a problem-free return of the gripper system for takeover position possible and a collision with the reaching for processing substrate is avoided.
  • the solution according to the invention makes it possible to control the gripper system with simple means in such a way that it is possible to return the gripper system to the feed table without difficulty, avoiding a collision of the material to be processed with the gripper system.
  • FIG. 1 shows a belt table 1 with conveyor belts 3 revolving in the sheet transport direction 2.
  • the belt table 1 is assigned a feed table 4 with front marks 5.
  • the feed table 4 is a pre-gripper 8 and this downstream of a cylinder 9, which aufeist a sheet holding system 33.
  • the pre-gripper 8 consists of rocking levers 11 pivotally mounted in frame points 10 and a gripper system 12.
  • the gripper system 12 has gripper fingers 14 which are clamped on a gripper shaft 13 and correspond to a gripper bar 15.
  • the gripper shaft 13 is rotatably received in two bearing bodies 16 and can be rotated by means of an acting on the gripper shaft 13 roller lever 23 which corresponds to a backdrop, not shown, are rotated.
  • the bearing body 16 are connected by a box section 22 with each other. With the box section 22 and the bearing bodies 16, the gripper bar 15 is connected.
  • the bearing body 16 are slidably mounted on guide rails 19 by means of two upper guide rollers 17 and a lower guide roller 18.
  • an engagement member 20 is provided in each case, which engages in a provided in the rocker arms 11, extending in the radial direction guide groove 21.
  • the guide rails 19 are pivotally received in a bearing point 24, while at the opposite, the feed table 4 facing the end of an actuating device 25 engages.
  • the adjusting device 25 is designed as a cam gear
  • the roller lever 26 is held by a compression spring 27 via a cam roller 28 into engagement with a cam 29.
  • the roller lever 26 is mounted in a frame point 32 and formed as a ternary member which engages at its free end with a driven member 30 in a groove 31 arranged in the guide rails 19.
  • the guide rails 19 are mounted in the region of the cylinder 9 in the bearing point 24 and in the region of the feed table 4, the actuating device 25 acting on the guide rails 19 is provided. It is also possible to provide the adjusting device 25 in the region of the cylinder 9 and the bearing point 24 in the region of the feed table 4.
  • the sheet material to be processed is separated by a sheet feeder, not shown, and fed to the belt table 1 and transported by this on the feed table 4 and with the leading edge against the front marks 5 located in a position on the feed table 4. Accordingly, the sheet 6 to be aligned was aligned in Fig. 1 after the leading edge. After alignment after the leading edge of the sheet 6 to be aligned is detected by the guided in a takeover position on the feed table 4 gripper system 12 and after the removal of the leading brands 5 in a position below the feed table 4 transported to the transfer position. In this case, the transport of the sheet 6 to be aligned takes place on a rectilinear path 34.
  • FIG. 1 symbolically shows the gripper system 12 on the way to the transfer position on the cylinder 9.
  • the guide rails 19 are given by the actuator 25 in a clockwise direction about the bearing point 24, so that the gripper system 12 back to the Antegtisch 4 a track 35 follows, at a distance below the straight line 34 is provided. In FIG. 1, this is shown symbolically by a dashed gripper system 12. Before reaching the feed table 4, the guide rails 19 are swung back by the adjusting device 25. Thus, the gripper system 12 is ready to take over the next sheet.
  • the adjusting device 25 is designed as a cam gear 29 impose a law of motion on the cam body 29, so that superimpose the translational movement of the gripper system 12 in the movement back to the feed table 4 and initiated by the cam body 29 pivotal movement and thus the Gripper system 12 follows an arbitrarily shaped path below the rectilinear path 34.
  • a feed table 4 was provided with front marks 5 for aligning with the leading edge. It is also possible, instead of providing the front marks 5 on the feed table 4, to assign them to the gripper system 12 and to align the sheets in the gripper system according to the front edge and, if necessary, the side edge by moving the gripper system 12 transversely to the sheet transport direction.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Discharge By Other Means (AREA)

Claims (5)

  1. Dispositif d'entraînement d'une pince amont comprenant un système de préhension pour le transport de feuilles (6) à partir d'un margeur papier (4) vers un système de maintien des feuilles (26) d'un cylindre (9),
    le système de préhension (12) décrivant, lors de son mouvement, une trajectoire rectiligne (34),
    le système de préhension (12) étant mobile sur des rails de guidage (19) au moins à partir du margeur (4) jusque dans la zone du cylindre (9),
    caractérisé en ce que
    les rails de guidage (19) sont reliés à un palier (24) et il est prévu à distance de celui-ci un dispositif de réglage (25) accroché aux rails de guidage (19) pour leur pivotement autour du point de palier (24), de telle sorte que le système de préhension (12) suive une trajectoire (35) à une certaine distance en dessous de la trajectoire rectiligne (34) sur son retour vers le margeur 4.
  2. Dispositif d'entraînement selon la revendication 1,
    caractérisé en ce que
    la trajectoire (35) est droite.
  3. Dispositif d'entraînement selon la revendication 1,
    caractérisé en ce que
    la trajectoire (35) a un tracé quelconque.
  4. Dispositif d'entraînement selon la revendication 1,
    caractérisé en ce que
    le déplacement s'effectue au moyen d'un balancier (11) entraîné de façon périodique.
  5. Dispositif d'entraînement selon les revendications 1 et 4,
    caractérisé en ce qu'
    un élément d'engrènement (20) relié au système de préhension (12) s'engrène dans une rainure de guidage (21) disposée radialement dans le balancier (11).
EP20030006276 2002-04-24 2003-03-21 Dispositif pour l'actionnement d'une pince préliminaire Expired - Lifetime EP1356932B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10218172 2002-04-24
DE2002118172 DE10218172A1 (de) 2002-04-24 2002-04-24 Antrieb eines Vorgreifers

Publications (3)

Publication Number Publication Date
EP1356932A2 EP1356932A2 (fr) 2003-10-29
EP1356932A3 EP1356932A3 (fr) 2004-07-14
EP1356932B1 true EP1356932B1 (fr) 2006-02-22

Family

ID=28685262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030006276 Expired - Lifetime EP1356932B1 (fr) 2002-04-24 2003-03-21 Dispositif pour l'actionnement d'une pince préliminaire

Country Status (2)

Country Link
EP (1) EP1356932B1 (fr)
DE (2) DE10218172A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007005016A1 (de) 2006-02-27 2007-08-30 Heidelberger Druckmaschinen Ag Vorrichtung zum Transport von Bogen mittels einer Greifereinrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126411B (de) * 1961-01-28 1962-03-29 Maschf Augsburg Nuernberg Ag Bogenanlegevorrichtung
FR1312813A (fr) * 1962-01-26 1962-12-21 Maschf Augsburg Nuernberg Ag Margeur
DE2156577B2 (de) * 1971-11-15 1974-07-04 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Vorgreiferschwinganlage
DD142694A1 (de) * 1979-04-02 1980-07-09 Guenter Weisbach Bogenrotationsdruckmaschine mit einem von unten arbeitenden vorgreifer
DD142869A1 (de) * 1979-04-02 1980-07-16 Guenter Weisbach Schwingender,von unten arbeitender vorgreifer
DE19543381C2 (de) * 1995-11-21 1999-06-10 Heidelberger Druckmasch Ag Greifersteuerung für einen zyklisch schwingend angetriebenen Vorgreifer zum Einzelbogentransport in einer Bogendruckmaschine
DE19831976B4 (de) * 1998-07-16 2010-07-29 Heidelberger Druckmaschinen Ag Vorrichtung zum Zuführen von Bogen zu einer Bogen verarbeitenden Maschine
DE10013006B4 (de) * 2000-03-16 2004-02-19 Man Roland Druckmaschinen Ag Vorrichtung für den Antrieb eines Vorgreifers
DE10013611B4 (de) * 2000-03-18 2006-07-06 Koenig & Bauer Ag Vorgreiferantrieb

Also Published As

Publication number Publication date
DE50302448D1 (de) 2006-04-27
EP1356932A3 (fr) 2004-07-14
DE10218172A1 (de) 2003-11-13
EP1356932A2 (fr) 2003-10-29

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