EP1103376B1 - Levier à galets dans des mécanismes de commande de pinces dans des cylindres de transport de feuilles dans des presses rotatives d'impression - Google Patents

Levier à galets dans des mécanismes de commande de pinces dans des cylindres de transport de feuilles dans des presses rotatives d'impression Download PDF

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Publication number
EP1103376B1
EP1103376B1 EP00124593A EP00124593A EP1103376B1 EP 1103376 B1 EP1103376 B1 EP 1103376B1 EP 00124593 A EP00124593 A EP 00124593A EP 00124593 A EP00124593 A EP 00124593A EP 1103376 B1 EP1103376 B1 EP 1103376B1
Authority
EP
European Patent Office
Prior art keywords
gripper
roller lever
roller
control gear
gear according
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
EP00124593A
Other languages
German (de)
English (en)
Other versions
EP1103376A1 (fr
Inventor
Arndt Jentzsch
Michael Beyer
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
Priority claimed from DE19956369A external-priority patent/DE19956369A1/de
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1103376A1 publication Critical patent/EP1103376A1/fr
Application granted granted Critical
Publication of EP1103376B1 publication Critical patent/EP1103376B1/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
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a gripper control gear for sheet-guiding cylinders in sheet-fed rotary printing machines.
  • Grippers on sheet-guiding cylinders in printing machines are used to convey sheets. You take over the sheet in the sheet transfer area from a upstream transport system and transfer the sheet in the sheet transfer area to a downstream transport system.
  • Grippers of this type which consist of a gripper stop fixed to the cylinder and the controllable gripper tongue, have long been known. They are opened and closed by means of cam control gears, whereby the law of motion of a gripper control cam fixed to the frame on the side of the sheet-guiding cylinder is transmitted via cam roller and roller lever to the gripper shaft, on which the grippers with their gripper tongues are distributed over the width of the cylinder.
  • the gripper is controlled by a positive fit via the contour of the control cam, i.e. the gripper is closed when the cam roller runs through a high detent of the gripper control cam, the roller lever acting against a spring force so that the grippers open as soon as the roller lever has a low detent happened on the periphery of the gripper control curve.
  • a gripper control on sheet-guiding cylinders by means of cam gear can be found in DE-OS 30 15 795.
  • the disadvantage of this is that the inevitable coupling between the gripper position and the rotational angle position of the sheet-guiding cylinder means that the grippers cannot be opened in rotationally accessible positions that are easily accessible from the outside for required operator actions such as cleaning work or adjustment (adjustment of the gripper pressure).
  • the advantage of the solution according to the invention is that the gripper impact surfaces and the gripper tongues can be made accessible for cleaning or adjustment in any desired angular position of the sheet-guiding cylinder with little assembly effort on an easily accessible assembly.
  • the particular advantage of the roller lever according to claim 6 is that the gripper adjustment can be carried out by means of a teaching with minimal effort.
  • a pressure cylinder 1 which is the guide here serves not shown bow, introduced a cylinder channel 2. This extends axially via the pressure cylinder 1 and receives a rotatable gripper shaft 3.
  • a number of grippers lie side by side on the gripper shaft 3 in the cylinder channel 2 4 arranged for detecting the sheet arriving from the upstream transfer cylinder.
  • the sheet is held by the gripper 4 during printing and then on the subordinate transfer cylinder, not shown here.
  • the grippers 4 have gripper tongues 7 which are closed in the functional position and on the edge area of the cylinder channel 2 press fixed gripper arms 8 and so the bow fix it on the printing cylinder 1.
  • a roller lever 6 with a cam roller 5 is rotatably associated with one end of the gripper shaft 3.
  • the cam roller 5 rolls on a fixed in the frame of the printing press Gripper control curve 9, the contact pressure of the cam roller 5 by an inside the gripper shaft 3 arranged torsion bar 16 is generated.
  • the deflections of the Cam roller 5 according to the curve law of the gripper control curve 9 thus cause the Movements of the gripper tongues 7 on the pressure cylinder 1 and thus the opening and closing the gripper 4.
  • the roller lever 6 is functionally configured in two parts according to the present invention (Fig.1,2).
  • a first part 6.1 is non-rotatably on one side by means of clamp 17 and key 18 the gripper shaft 3 fixed and thus pivotable together with this.
  • a second part of the Roller lever 6.2 consists of two parallel webs 6.2.S, approximately in the middle (Fig.2) by one Bridge 6.2.B are connected.
  • the webs 6.2.S are the first roller lever part 6.1 on both sides to and in each case by means of annular clamps 6.2.K non-positively arranged on the gripper shaft 3.
  • On the opposite side, projecting beyond the first part 6.1, is between the cam roller 5 is mounted on both webs 6.2.
  • a connecting element 19 on the The end face of the gripper shaft 3 serves to transmit torque from the torsion bar spring 16 on the second roller lever part 6.2.
  • the connecting element 19 is form-fitting with the Torsion bar spring 16 connected and with the outer web 6.2.S of the second roller lever part 6.2 screwed.
  • the first part of the roller lever 6.1 lies flat on the bridge 6.2.B of the second, longer one Part 6.2 of the roller lever 6 and is by a screw 10 with the bridge 6.2.B connected.
  • the screw connection 10 consists of an oscillating in the bridge 6.2.B stored threaded bolt, which is arranged in a in the first roller lever part 6.1 Pendulum pin engages with internal thread.
  • the torque of the torsion bar spring 16 is thus via the front connecting element 19 to the second roller lever part 6.2, from this via the screw 10 on the bridge 6.2.B to the first roller lever part 6.1 and from there to the gripper shaft 3.
  • a lockable pinion 13 engages, which are each mounted on the bridge of the second roller lever part 6.2.
  • the pinion 13 can be manually e.g. via a form-fitting attack on the pinion shaft Tool can be rotated and by a locking screw arranged on the pinion shaft 14 be fixed in its opening angle position.
  • a fourth variant of the split roller lever (Fig.5) is the underside of the bridge 6.2.B the first variant of the roller lever from Figure 1 executed as a slope, the vertical Angle to the longitudinal axis 21 of the roller lever 6 is dimensioned so that a straight distance gauge from the outside above the cam roller 5 between bridge 6.2.B and top of the first roller lever part 6.1 can be inserted.
  • both roller lever parts 6.1.6.2 with the help of the respective connecting elements 10 or 11, 12 or 11, 13, 14 in their starting position brought, secured with the additional locking screw 15 (variant 2 and 3) and finally the terminals 6.2.K closed.
  • the clamps on the gripper shaft 3 on the second part of the roller lever 6.2 must first be released.
  • the opening angle of the gripper tongues 7 is only determined by the position of the first roller lever part 6.1.
  • the screw connection 10 is opened manually and, with further rotation of the screw connection 10, the opening angle between the longitudinal axes of the roller lever parts 6. 1, 6. 2 is enlarged and the gripper shaft 3 is rotated, so that the gripper tongues 7 lift off the gripper cuffs 8.
  • a distance gauge the thickness of which corresponds to the desired “overpressure”, ie the deflection of the gripper tongues 7 from their normal position on the gripper shaft 3 when closing, and thus represents a measure of the pressing force of the gripper tongues 7, between the adjusting surface 20 of the bridge 6.2.B and inserted the first roller lever part 6.1.
  • the connection between the two roller lever parts 6.1.6.2 is closed again, the distance gauge remaining in the gap between the two roller lever parts 6.1.6.2.
  • the grippers 4 need only be individually adjusted on the gripper shaft 3 so that their gripper tongues 7 lie evenly on the gripper cuffs 8. No further adjustments are required.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (12)

  1. Transmission de commande d'organe de préhension pour des cylindres guidant les feuilles dans des machines d'impression rotatives feuille à feuille, composée d'un arbre de préhension (3) monté en rotation dans le canal (2) du cylindre (1) guidant les feuilles, d'un levier à galet (6) associé solidairement en rotation à l'arbre de préhension (3) et comportant un galet à came (5), une came de commande de préhension (9) prévue latéralement sur le cylindre de guidage de feuilles, dans le bâti de la machine à imprimer, cette came étant associée au levier à galet (6), ainsi que d'organes de préhension (4) formés par des languettes de prise (7) et d'appui de prise (8),
    caractérisée en ce que
    le levier à galet (6) est fonctionnellement réalisé en deux parties et les deux parties de levier (6.1, 6.2) montées sur l'arbre de préhension (3), sont réglables l'une par rapport à l'autre autour de l'arbre de préhension (3) dans leurs directions périphériques et sont reliées par une liaison de réglage ou de blocage (10 à 14).
  2. Transmission de commande d'organe de préhension selon la revendication 1,
    caractérisée en ce qu'
    une première partie (6.1) du levier à galet (6) est fixée en permanence sur l'arbre de préhension (3) et une seconde partie (6.2) associée à la première partie (6.1) est montée sur l'arbre de préhension (3) avec des liaisons amovibles (6.2.K) pour soulever les languettes de prise (7).
  3. Transmission de commande d'organe de préhension selon la revendication 1,
    caractérisée en ce que
    la seconde partie (6.2) du levier à galet (6) se compose de deux entretoises (6.2.S) entourant des deux côtés la première partie de levier à galet (6.1) et s'étendant sur celui-ci dans sa direction longitudinale, ces entretoises reliées au milieu par un pont (6.2.B) reçoivent d'un côté le galet à came (5) et du côté opposé à celui du galet à came (5), elles sont reliées à l'arbre de préhension (3) par une liaison par la force, amovible (6.2.K).
  4. Transmission de commande d'organe de préhension selon la revendication 1,
    caractérisée en ce que
    la première partie (6.1) du levier à galet (6) s'étend à partir de l'arbre de préhension (3) jusqu'au pont (6.2.B) de la seconde partie de levier à galet (6.2).
  5. Transmission de commande d'organe de préhension selon la revendication 1,
    caractérisée en ce que
    la liaison réglable (10, 11, 12 ; 11, 13, 14) d'entre les parties de levier à galet (6.1, 6.2) se trouve au milieu du pont (6.2.B) de la seconde partie de levier à galet (6.2).
  6. Transmission de commande d'organe de préhension selon l'une quelconque des revendications 3 à 5,
    caractérisée en ce que
    le pont (6.2.B) de la partie de levier à galet (6.2) comporte une surface d'ajustage (20) installée de manière montante suivant un angle vertical par rapport à l'axe longitudinal (21) du levier à galet (6) dans la direction du galet de came (5) pour que son plan ne coupe pas ou ne soit pas tangent au contour du galet de came (5).
  7. Transmission de commande d'organe de préhension selon la revendication 5,
    caractérisée en ce que
    la liaison réglable est une liaison vissée (10).
  8. Transmission de commande d'organe de préhension selon la revendication 5,
    caractérisée en ce que
    la liaison réglable est une transmission à vis.
  9. Transmission de commande d'organe de préhension selon la revendication 5,
    caractérisée en ce que
    la liaison réglable est une transmission à pignons dentés.
  10. Transmission de commande d'organe de préhension selon la revendication 7,
    caractérisée en ce que
    la liaison à vis (10) est formée par une tige filetée à montage pendulaire dans le pont (6.2.B), cette tige pénétrant dans le filetage intérieur d'un goujon pendulaire prévu dans la première partie de levier à galet (6.1).
  11. Transmission de commande d'organe de préhension selon la revendication 8,
    caractérisée en ce que
    la transmission à vis est formée d'une roue à vis (12) montée dans le pont (6.2.B) qui pénètre dans un segment denté (11) de la première partie (6.1) du levier à galet (6).
  12. Transmission de commande d'organe de préhension selon la revendication 9,
    caractérisée en ce que
    la transmission à roue dentée est formée d'un pignon denté (13) bloqué par une vis de blocage (14) sur le pont (6.2.B) et d'un segment denté (11), le pignon étant en prise dans un segment denté (11) de la première partie (6.1) du levier à galet (6).
EP00124593A 1999-11-24 2000-11-10 Levier à galets dans des mécanismes de commande de pinces dans des cylindres de transport de feuilles dans des presses rotatives d'impression Expired - Lifetime EP1103376B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19956369 1999-11-24
DE19956369A DE19956369A1 (de) 2000-04-15 1999-11-24 Rollenhebel in Greifersteuergetrieben an bogenführenden Zylindern in Bogenrotationsdruckmaschinen
DE10018830 2000-04-15
DE10018830A DE10018830A1 (de) 1999-11-24 2000-04-15 Rollenhebel zur Steuerung von Greifern

Publications (2)

Publication Number Publication Date
EP1103376A1 EP1103376A1 (fr) 2001-05-30
EP1103376B1 true EP1103376B1 (fr) 2002-06-19

Family

ID=26005334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00124593A Expired - Lifetime EP1103376B1 (fr) 1999-11-24 2000-11-10 Levier à galets dans des mécanismes de commande de pinces dans des cylindres de transport de feuilles dans des presses rotatives d'impression

Country Status (3)

Country Link
EP (1) EP1103376B1 (fr)
AT (1) ATE219421T1 (fr)
DE (1) DE10018830A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10248974B4 (de) * 2001-11-16 2019-01-24 Heidelberger Druckmaschinen Ag Greiferanordnung in einer Rotationsdruckmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599776A (en) * 1947-05-24 1952-06-10 Miehle Printing Press & Mfg Sheet gripper structure and setting means therefor
DE8404981U1 (de) * 1984-02-18 1984-05-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Bogengreifer fuer druckmaschinen
DE3508697A1 (de) * 1985-03-12 1986-09-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zur steuerung von greifern in bogenrotationsdruckmaschinen
DE4028367A1 (de) * 1990-09-07 1992-03-12 Planeta Druckmaschinenwerk Ag Bogenfuehrungseinrichtung in bogenbe- und verarbeitenden maschinen

Also Published As

Publication number Publication date
EP1103376A1 (fr) 2001-05-30
ATE219421T1 (de) 2002-07-15
DE10018830A1 (de) 2001-10-31

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