EP1356931B1 - Pince préliminaire comprenant un système de préhension - Google Patents

Pince préliminaire comprenant un système de préhension Download PDF

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Publication number
EP1356931B1
EP1356931B1 EP20030006268 EP03006268A EP1356931B1 EP 1356931 B1 EP1356931 B1 EP 1356931B1 EP 20030006268 EP20030006268 EP 20030006268 EP 03006268 A EP03006268 A EP 03006268A EP 1356931 B1 EP1356931 B1 EP 1356931B1
Authority
EP
European Patent Office
Prior art keywords
gripper
sheet
feed table
cylinder
guide rails
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
EP20030006268
Other languages
German (de)
English (en)
Other versions
EP1356931A3 (fr
EP1356931A2 (fr
Inventor
Arndt Jentzsch
Victor Hefftler
Berthold Oehler
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 EP1356931A2 publication Critical patent/EP1356931A2/fr
Publication of EP1356931A3 publication Critical patent/EP1356931A3/fr
Application granted granted Critical
Publication of EP1356931B1 publication Critical patent/EP1356931B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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 pre-gripper with a gripper system for transporting sheets from a feed table to a sheet-holding system of a cylinder, wherein the pre-gripper is arranged below a curved path.
  • DE 100 13 006 A1 proposes to guide the gripper system of the pregripper on a straight path between the transfer position on the feed table and the transfer position on the downstream cylinder. This ensures that the sheets are not supplied with a convex curvature to the sheet-holding system, but unconstrained on a straight path, but the registration accuracy adversely affecting deformations of the arc are not completely excluded.
  • the object of the invention is to provide a generic pre-gripper in such a way that the sheets are transferred to the sheet-holding system of the cylinder without a deformation adversely affecting the registration accuracy.
  • the object is achieved by a pre-gripper according to the features of claim 1.
  • 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 has a sheet holding system 26.
  • the feed table 4 / belt table 1 are assigned to the cylinder 9 such that the plane of the feed table 4 / belt table 1 intersects the cylinder 9.
  • 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 arranged 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 in the embodiment of an adjusting means 29 which is arranged fixed to the frame and connected via an actuator 30 with the end of a designed as a ternary member roller lever 31.
  • the roller lever 31 is pivotally mounted in a frame point 32 and engages with a driven member 33 in a arranged in the guide rails 19 a groove.
  • the gripper system 12 travels on the guide rails 19, pivoted so that the Greiferaufschlagance 15 / gripper fingers 14 follow on their way from the feed table 4 to the cylinder 9 a curved path 27 which is concave , while the return of the gripper system 12 to the feed table 4 takes place on a web 28 which extends at a distance below the curved path 27.
  • 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 aligning to the leading edge of the sheet 6 is detected by the guided into a transfer position on the feed table 4 gripper system 12 and transported after the removal of the leading edge 5 in a position below the feed table 4 to the transfer position. The driving of the gripper system 12 via a drive, not shown, which gives the rocker arms 11 a periodic pivoting movement.
  • the bearing body 16 Due to the mating engagement member 20 / guide 21, the bearing body 16 are moved on the guide rails 19 and so realized a movement of the gripper system 12 from the feed table 4 to the cylinder 9.
  • the guide rails 19 are pivoted by the adjusting device 25 according to a stored in the actuator 25 movement path around the bearing point 24, that the active pair gripper bar 15 / gripper fingers 14 and thus the sheet 6 to be aligned on the concave arc run 27 is performed.
  • the gripper system 12 is symbolically represented on the way to the transfer position on the cylinder 9.
  • the pre-gripper 8 is shown in this position, the sheet to be aligned 6 is transferred from the gripper system 12 to the sheet holding system 26 and the gripper system 12 is controlled beyond this position out in a reversing position in which the direction of movement of the Swing lever 11 is reversed.
  • this position is shown in Fig. 1 by the gripper system 12.
  • FIG. 2 shows a further embodiment of the pre-gripper 8 with a feed table 4 / belt table 1.
  • Fig. 1 does not intersect the plane formed by the feed table 4 / belt table 1 the cylinder 9, but extends at a distance therefrom.
  • the sheet 6,7 are transported by the gripper system 12 on a concave curved path 27 to the cylinder 9 and the gripper system 12 is returned to the provided at a distance below the sheet path 27 web 28 to feed table 4 ,
  • a feed table 4 was provided with front marks 5 for aligning with the leading edge.

Landscapes

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

Claims (5)

  1. Pince préliminaire comprenant un système de préhension (12) pour le transport de feuilles à partir d'une table à papier (4) vers un système de maintien des feuilles (26) d'un cylindre (9), le système de préhension (12) présentant au moins une barre d'arrêt (15) du système et des doigts de préhension (14), la pince préliminaire (8) étant disposée en dessous d'une trajectoire de feuilles (27) décrite par la barre d'arrêt du système de préhension / des doigts de préhension, et le système de préhension (12) étant logé de façon mobile sur des rails de guidage (19) qui s'étendent au moins de la table à papier (4) jusqu'au cylindre (9),
    caractérisée en ce que
    dans la zone du cylindre (9), les rails de guidage sont logés dans un point de palier (24) et, dans la zone tournée vers la table à papier (4), est prévu un dispositif de réglage (25) s'accrochant aux rails de guidage (19) pour leur pivotement autour du point de palier (24), de telle sorte que la trajectoire de feuilles (27), vue à partir du cylindre (9), s'étend de façon concave et que le mouvement de retour du système de préhension vers la table à papier (4) s'effectue sur une trajectoire (28) prévue en dessous de la trajectoire de feuilles (27) à une certaine distance.
  2. Pince préliminaire selon la revendication 1,
    caractérisée en ce que
    le déplacement du système de préhension (12) s'effectue au moyen d'un balancier (11) entraîné de façon périodique.
  3. Pince préliminaire selon les revendications 1 et 2,
    caractérisée 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).
  4. Pince préliminaire selon les revendications 1 à 3,
    caractérisée en ce que
    la réalisation de la trajectoire de feuilles (27) et de la trajectoire (28) s'effectue par superposition du mouvement de translation du système de préhension (12) avec un tracé du mouvement transmis par le dispositif de réglage (25) sur les rails de guidage (19).
  5. Pince préliminaire selon les revendications 1, 2, 3 et 4,
    caractérisée en ce que
    dans le dispositif de réglage (25) différents tracés de mouvements pour la réalisation de différentes trajectoires de feuilles (27) et trajectoires (28) du retour du système de préhension sont mis en mémoire de façon à être disponibles.
EP20030006268 2002-04-24 2003-03-21 Pince préliminaire comprenant un système de préhension Expired - Fee Related EP1356931B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002118204 DE10218204A1 (de) 2002-04-24 2002-04-24 Vorgreifer mit einem Greifersytem
DE10218204 2002-04-24

Publications (3)

Publication Number Publication Date
EP1356931A2 EP1356931A2 (fr) 2003-10-29
EP1356931A3 EP1356931A3 (fr) 2004-07-14
EP1356931B1 true EP1356931B1 (fr) 2006-02-22

Family

ID=28685265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030006268 Expired - Fee Related EP1356931B1 (fr) 2002-04-24 2003-03-21 Pince préliminaire comprenant un système de préhension

Country Status (2)

Country Link
EP (1) EP1356931B1 (fr)
DE (2) DE10218204A1 (fr)

Family Cites Families (10)

* 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
DE10023669C1 (de) 2000-05-16 2001-06-28 Roland Man Druckmasch Steuervorrichtung für Vorgreifergreifer eines Vorgreifers in einer Bogenverarbeitungsmaschine

Also Published As

Publication number Publication date
EP1356931A3 (fr) 2004-07-14
DE10218204A1 (de) 2003-11-06
EP1356931A2 (fr) 2003-10-29
DE50302447D1 (de) 2006-04-27

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