EP0685337B1 - Dispositif pour régler la surface d'appui des pinces d'un ensemble à pinces pour feuilles dans un cylindre de retournement d'une machine d'impression recto-verso - Google Patents

Dispositif pour régler la surface d'appui des pinces d'un ensemble à pinces pour feuilles dans un cylindre de retournement d'une machine d'impression recto-verso Download PDF

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Publication number
EP0685337B1
EP0685337B1 EP95105578A EP95105578A EP0685337B1 EP 0685337 B1 EP0685337 B1 EP 0685337B1 EP 95105578 A EP95105578 A EP 95105578A EP 95105578 A EP95105578 A EP 95105578A EP 0685337 B1 EP0685337 B1 EP 0685337B1
Authority
EP
European Patent Office
Prior art keywords
gripper
adjusting
wedge
swivel shaft
strip
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
EP95105578A
Other languages
German (de)
English (en)
Other versions
EP0685337A2 (fr
EP0685337A3 (fr
Inventor
Josef Mathes
Stefan Watzl
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0685337A2 publication Critical patent/EP0685337A2/fr
Publication of EP0685337A3 publication Critical patent/EP0685337A3/fr
Application granted granted Critical
Publication of EP0685337B1 publication Critical patent/EP0685337B1/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
    • B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine

Definitions

  • the invention relates to a device for adjusting Gripper serves for sheet grabs in a turning drum Perfecting machine.
  • a device of this type is known from DE 3 508 699 C2. Then the gripper pads are in the swivel shaft Integrated control shaft adjustable in height using multi-level control levels. This version is structurally complex and requires a larger space.
  • An adjustable gripper pad is known from US Pat. No. 1,208,731 known, which is mounted on a rotating printing cylinder. This structurally complex, height-adjustable gripper pad however, does not affect a turning drum. A transfer of teaching to the US-PS 1 208 731 on a turning drum is technically not without further action is possible because two interacting correlatively Gripper system of a turning drum a special problem is present.
  • GB 2 098 966 A describes a device for positioning (superscript and subscript) the gripper pad of a gripper bridge of a sheet guide cylinder is known. Positioning the gripper pad, depending on the thickness of the substrate to be processed, takes place by means of an adjusting rod, which acts in the cylinder axis direction against spring force displaceable by means of a screw under one over the entire length of the cylinder extending gripper pad is arranged.
  • the contact surfaces of the gripper pad and adjusting rods form a thrust wedge transmission in the cylinder axis direction, such that a displacement of the adjusting rod the radial positioning of the Gripper pads causes.
  • the object of the invention is the gripper pads for sheet grabs in a reversing drum of a perfecting machine height adjustable from the stock to be processed minimal space requirement, in a compact design with the corresponding Perform registration.
  • the invention is suitable for turning drums where the space available for Adjustment of the gripper pads are limited. With the present Solution, the assembly effort is reduced and the gripper pads are continuously or also gradually parallel to the Swivel shaft adjusted. Another advantage is the higher one Stiffness of the actuator, which consists of a thrust cam gear is formed as well as the improvement of plane parallelism the gripper pads to the swivel shaft. The present solution reduces the inertial forces, which is a pivoting bearing plate is another advantage. The invention is suitable for gripper pad adjustment for straight printing as well as for counterpressure grippers.
  • FIG. 4 is a sheet-fed offset printing machine in Row construction shown. Between two double-sized impression cylinders 17, a double-sized turning drum 18 is arranged. Each printing cylinder 17 is a blanket cylinder in a known manner 19 and a plate cylinder 20 assigned.
  • the turning drum 18 carries on one half a gripping device 21, which by a suction system 22, a first gripper system 23 (counter pressure gripper) and a second gripper system 24 (fine-pressure gripper) is formed (Fig. 5).
  • a height adjustable Gripper impact bar 4 of the second gripper system 24 closer are explained.
  • the first gripper system 23 can be analog form.
  • the pivot shaft 1 carries several in a uniform manner Spacer plates 2 in which a gripper shaft 16 is stored. Each holding plate 2 has an approximately radial Direction (based on the turning drum 18) axially parallel to Swivel shaft 1 aligned groove 3. The axis parallel to the turning drum 18 or to the swivel shaft 1 extending gripper bar 4 added in each groove 3. In the gripper bar 4 is in a groove 7 integrated the height adjustment.
  • the height adjustment consists of a flat thrust cam mechanism, which in Fig. 1 and 3 formed from a fixed wedge 6 and a drawing strip 8 is and represents the actuator.
  • the pull bar 8 represents the curve carrier and runs parallel to the gripper bar 4.
  • Each cam joint is thus assigned by the wedge 6 and the Curve of the pull bar 8 formed.
  • the gripper bar 4 is executed in two parts, such that a part with a connecting element 10, e.g. a screw with the holding plate 2 releasable connected is.
  • a compression spring 9 arranged on the second part of the gripper bar 4 is included. The spring force turns on the positive movement is guaranteed in every curve joint.
  • On the gripper bar 4 are several at defined intervals Gripper pads arranged the respective gripper of a row of grabs (not shown) are assigned to the gripper shaft 16.
  • the threaded bolt 13 has one at its free end Handle 14, which is preferably designed as a knurled handle.
  • the Screw gear is guided in a socket 15.
  • Adjustment of the gripper bar 4 can be continuous or also take place in switching stages.
  • the handle 14 of the threaded bolt 13 to the frame Threaded sleeve 26 rotated (relative movement in Screw joint). Since the threaded bolt 13 with the drawing strip 8 is coupled, the pull strip 8 is forward or in the axial direction moved back.
  • the manual operation of the pull bar 8 can in a further training also performed by an actuator become.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)

Claims (4)

  1. Dispositif pour régler les points d'impact des pinces (5) pour des pinces de feuilles dans un tambour de retournement d'une machine d'impression à retiration, comportant des systèmes de pinces (23,24) agencés sur des arbres de pinces (16) et coopérant de façon corrélative, un point d'impact de pinces (5) étant associé à chaque pince de feuilles d'une série de pinces et les points d'impact des pinces (5) étant fixés par des plaques maintien (2), à chaque fois, à un arbre de pivotement (1), caractérisé en ce que chaque plaque de maintien (2) présente une rainure (3) alignée parallèlement à l'axe par rapport à l'arbre de pivotement (1), dans laquelle il est agencé une barrette d'impact des pinces (4), portant les points d'impact des pinces (5), ayant un dispositif de réglage intégré (6,8 ou 12) agissant sensiblement en direction radiale, et en ce que le dispositif de réglage (6,8 ou 12) est couplé à un entraínement de réglage (13,14) agencé de façon facilement accessible sur le tambour de retournement (18).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le dispositif de réglage (6,8) est une commande à came de poussée, laquelle est formée par au moins une clavette (6) et une barrette de traction (8), ou est formée par au moins une clavette (6) et un galet associé (12) guidé dans la barrette d'impact des pinces (4) au moyen d'une broche (11).
  3. Dispositif selon la revendication 1,
    caractérisé ce que l'entraínement de réglage (13,14) est formé par une commande à vis, laquelle peut être actionnée de façon manuelle ou motorisée.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que la commande à vis est formée par un boulon fileté (13) et une douille taraudée (26).
EP95105578A 1994-05-27 1995-04-13 Dispositif pour régler la surface d'appui des pinces d'un ensemble à pinces pour feuilles dans un cylindre de retournement d'une machine d'impression recto-verso Expired - Lifetime EP0685337B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9408714U DE9408714U1 (de) 1994-05-27 1994-05-27 Vorrichtung zur Verstellung der Greiferaufschlagleiste für Bogengreifer in einer Wendetrommel einer Schön- und Widerdruckmaschine
DE9408714U 1994-05-27

Publications (3)

Publication Number Publication Date
EP0685337A2 EP0685337A2 (fr) 1995-12-06
EP0685337A3 EP0685337A3 (fr) 1996-12-27
EP0685337B1 true EP0685337B1 (fr) 2000-01-26

Family

ID=6909182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95105578A Expired - Lifetime EP0685337B1 (fr) 1994-05-27 1995-04-13 Dispositif pour régler la surface d'appui des pinces d'un ensemble à pinces pour feuilles dans un cylindre de retournement d'une machine d'impression recto-verso

Country Status (3)

Country Link
EP (1) EP0685337B1 (fr)
AT (1) ATE189161T1 (fr)
DE (2) DE9408714U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642104C2 (de) * 1996-10-12 1998-09-10 Roland Man Druckmasch Anordnung zur dezentralen Einzelverstellung von Greiferaufschlagleisten in bogenführenden Trommeln bzw. Zylindern von Rotationsdruckmaschinen
DE19739571B4 (de) * 1996-12-17 2007-05-31 Heidelberger Druckmaschinen Ag Stellvorrichtung für eine Höhenverstellung von diametral gegenüberliegend angeordneten Greiferaufschlagleisten an bogenführenden Zylindern von Druckmaschinen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1208731A (en) * 1916-04-06 1916-12-19 Miehle Printing Press & Mfg Adjustable gripper-pad.
DE812431C (de) * 1949-12-13 1951-08-30 Johannisberg G M B H Maschf Einstellbare Greiferunterlagen an Schwinganlagen von Bogendruckmaschinen
DE1259904B (de) * 1964-12-17 1968-02-01 Roland Offsetmaschf Vorrichtung an den Bogenfuehrungseinrichtungen einer Mehrfarben-Bogenrotationsdruckmaschine zum Beeinflussen der Passerhaltigkeit der Aufdrucke
US4503772A (en) * 1981-04-21 1985-03-12 Komori Printing Machine Co., Ltd. Gripper pad height adjusting device for sheet-fed rotary printing presses
DE3447596A1 (de) * 1984-12-28 1986-07-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenuebertragungszylinder fuer bogenrotationsdruckmaschinen
DE3508699A1 (de) * 1985-03-12 1986-09-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Hoehenverstellbare greiferauflagen fuer wendetrommelgreifer in wendetrommeln von schoen- und widerdruckmaschinen
DD253009A1 (de) * 1986-09-30 1988-01-06 Polygraph Leipzig Bogengreifereinrichtung
JPH0641201B2 (ja) * 1987-12-07 1994-06-01 株式会社篠原鉄工所 枚葉式印刷機の爪座高さ調整装置

Also Published As

Publication number Publication date
DE59507678D1 (de) 2000-03-02
DE9408714U1 (de) 1994-07-21
ATE189161T1 (de) 2000-02-15
EP0685337A2 (fr) 1995-12-06
EP0685337A3 (fr) 1996-12-27

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