EP0419937B1 - Dispositif de raclage - Google Patents

Dispositif de raclage Download PDF

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Publication number
EP0419937B1
EP0419937B1 EP90117492A EP90117492A EP0419937B1 EP 0419937 B1 EP0419937 B1 EP 0419937B1 EP 90117492 A EP90117492 A EP 90117492A EP 90117492 A EP90117492 A EP 90117492A EP 0419937 B1 EP0419937 B1 EP 0419937B1
Authority
EP
European Patent Office
Prior art keywords
doctor blade
frame
blade holder
wiping device
supporting members
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
EP90117492A
Other languages
German (de)
English (en)
Other versions
EP0419937A2 (fr
EP0419937A3 (en
Inventor
Herbert Lübke
Volker Dipl.-Ing. Schröder
Wolfgang Knapheide
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0419937A2 publication Critical patent/EP0419937A2/fr
Publication of EP0419937A3 publication Critical patent/EP0419937A3/de
Application granted granted Critical
Publication of EP0419937B1 publication Critical patent/EP0419937B1/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
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1036—Clamping and adjusting devices

Definitions

  • the invention relates to a doctor device according to the preamble of claim 1.
  • the squeegee holder can be pivoted on a squeegee carrier on a circular arc, the center of which lies in the cutting edge of the squeegee knife, so that when the squeegee holder is pivoted, the angle of attack of the squeegee knife to the forme cylinder is changed, but the line of contact of the doctor blade with the forme cylinder is retained unchanged.
  • manually operable wheels are provided, via which the settings of the squeegee holder, the frame supporting the squeegee holder and the supporting pieces of the frame can be carried out.
  • the manual settings make it more difficult, however, the angle of attack and the line of attack of the doctor blade on the roller and also the pressure of the Doctor blade knife on the roller reliably, sensitively and quickly, especially during printing.
  • the object of the invention is therefore to provide a doctor device according to the preamble of claim 1, with which the required settings of the doctor knife can be adjusted sensitively and quickly.
  • the squeegee holder can be moved linearly parallel to itself by actuating the drives and additionally perform swiveling movements around two parallel and spaced-apart swivel axes, so that the squeegee knife can be operated automatically or by remote control at arbitrary angles and within a predetermined circumferential range Roller in different positions can be placed against them, and the pressure of the doctor blade can also be controlled by the drives.
  • the squeegee device according to the invention thus makes it possible to change the filling level of the wells of the forme cylinder and the drying time of the ink sensitively by means of a remote control, which permits observation of the squeegee device as a whole, in particular even during printing operation. This makes it possible to achieve an optimal printing result regardless of the drying behavior of the ink processed.
  • the central control device is expediently a central computer which controls the swivel and linear drives in accordance with the respective program.
  • doctor device automatically changes to different Can adjust the diameter of the rollers and forme cylinders.
  • Two side walls of the frame are connected to one another by means of a crossbar 2.
  • gears 3 and 4 are screwed, with gear 4 being assigned a motor 5.
  • the gears 3 and 4 are connected to one another via a shaft 6.
  • the threaded spindles 7 and 8 which can be driven by the motor 5 via the gears 3 and 4 are held in the region of their ends remote from the gears 3 and 4 via brackets 9 and 10 connected to the side walls 1.
  • Bearings 11 and 12 equipped with threaded nuts, not shown, are placed on the threaded spindles 7 and 8.
  • a bearing journal 13 is rotatably held, which is firmly connected to one side of a cast frame 14.
  • a bearing journal 15 is rotatably mounted in the bearing shown on the right-hand side of FIG. 1 and is fixedly connected to the right-hand side of the cast frame 14 at its end facing away from the bearing 12.
  • a clamping lever 16 is placed on the bearing pin 15 shown on the right in FIG. 1 and is fork-shaped on its side facing the viewer in FIG. 3.
  • a bolt 19 is rotatably mounted, which has a central threaded bore.
  • a threaded spindle 21 is screwed into this threaded bore and has a joint 22 at its lower end (FIG. 1).
  • the threaded spindle 21 is connected to a stub shaft 23 which is axially fixed but rotatable in a support profile 24.
  • the latter, namely the pulley 27, can be driven by a motor 28 which is firmly connected to the support profile 24.
  • the support profile 24 itself is attached to the bearing 12.
  • the two bearings 11 and 12 can consequently be raised and lowered, thereby over the journals 13 and 15, the cast frame 14 can be raised or lowered.
  • the cast frame 14 can additionally be pivoted via the threaded spindle 21, the bolt 19 and the clamping lever 16.
  • the cast frame 14 has a plurality of supports 29 which are arranged at a distance from one another, two supports 29 each carrying an axis 30. Arms 31, which are firmly connected to the actual doctor holder 32, are supported on the three axes 30. As can be seen in FIG. 1, a further motor 33 is flanged to the cast frame 14, by means of which the doctor holder 32 can be pivoted relative to the base frame 14. This pivoting takes place in an analogous manner to the pivoting of the cast frame 14 via the motor 28, so that a further explanation is unnecessary.
  • a forme cylinder 34 and an impression roller 35 are shown in full lines in FIG.
  • the doctor blade 36 is attached to the forme cylinder 34 and is connected to the doctor holder 32 via clamping pieces 37 and a clamping claw 38.
  • the doctor blade can pass through the angle B, which has an influence on the degree of drying of the ink. (The farther the doctor blade is from the impression roller, the farther the path that the scraped cups of the forme cylinder have to travel to the impression roller, whereby a high degree of drying is achieved).
  • the doctor blade can be adjusted within the angle A by a corresponding method of the three motors mentioned, by which the degree of cell filling is defined. (The smaller the angle A, the greater the degree of filling of the cells).
  • FIG. 4 shows a block diagram of the NC control of the doctor device.
  • the core of the control device is a computer that controls the servomotors 5, 28, 33.
  • the angle of attack and the line of attack as well as the pressure of the doctor blade to the forme cylinder can be controlled by special programs. There are also special programs that automatically adjust the doctor blade to a changed forme cylinder diameter when changing the forme cylinder.
  • the programs additionally contain program parts for predetermined print jobs so that they can be called up in a simple manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (3)

  1. Dispositif de raclage dont la lame (36), fixée dans un porte-raclette pivotant (32), est ajustable sur un cylindre (34) recevant la couleur, avantageusement le cylindre gravé d'une machine à imprimer à rouleau à gravure en creux, à un angle réglable, le porte-raclette (32) étant logé pivotant dans un cadre (14) qui, pour sa part, est logé pivotant sur des pièces de support (11, 12) qui sont guidées pour un déplacement linéaire en synchronisme dans le châssis (1),
    caractérisé en ce que,
    le porte-raclette (32) et le cadre (14) sont pourvus d'entraînements en pivotement et les pièces de support (11, 12) d'entraînements linéaire, qui peuvent être commandés par une installation centrale de commande, en ce que les arbres de pivotement (30, 13, 15) du porte-raclette (32) et du cadre (14), parallèles les uns aux autres et au cylindre (34), portent des leviers (16) aux extrémités desquels sont reçues des broches mères (19) pouvant pivoter autour d'axes parallèles aux arbres de pivotement et en ce que dans les broches mères (19) sont vissées des broches (21) qui sont reliées par des croisillons (22) aux arbres d'entraînement (23) qui peuvent être entraînés directement, ou par des transmissions intermédiaires, par des moteurs électriques (28, 33).
  2. Dispositif de raclage selon la revendication 1 caractérisé en ce que les arbres d'entraînement (23) sont reçus sur le cadre (14) ou respectivement dans la pièce de support (12).
  3. Dispositif de raclage selon la revendication 1 ou 2, caractérisé en ce que les pièces de support (11, 12) sont pourvues de broches mères dans lesquelles sont vissées des broches (7,8) à leurs extrémités logées dans le châssis (1), en ce que les broches (7, 8) peuvent être entraînées en synchronisme au moyen de roues coniques liées à un arbre (6) et en ce que l'arbre (6) peut être entraîné par un motoréducteur (5).
EP90117492A 1989-09-27 1990-09-11 Dispositif de raclage Expired - Lifetime EP0419937B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3932232 1989-09-27
DE3932232A DE3932232A1 (de) 1989-09-27 1989-09-27 Rakelvorrichtung

Publications (3)

Publication Number Publication Date
EP0419937A2 EP0419937A2 (fr) 1991-04-03
EP0419937A3 EP0419937A3 (en) 1991-08-14
EP0419937B1 true EP0419937B1 (fr) 1994-12-07

Family

ID=6390296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90117492A Expired - Lifetime EP0419937B1 (fr) 1989-09-27 1990-09-11 Dispositif de raclage

Country Status (4)

Country Link
US (1) US5090317A (fr)
EP (1) EP0419937B1 (fr)
JP (1) JP2972310B2 (fr)
DE (2) DE3932232A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9412222U1 (de) * 1994-07-29 1994-10-13 Händle GmbH & Co. KG, 75417 Mühlacker Walzwerk für Rohstoffe für die keramische Industrie
DE19601070A1 (de) * 1996-01-13 1997-07-17 Baldwin Gegenheimer Gmbh Verfahren und Vorrichtung zum Waschen von Druckmaschinen-Zylindern
DE102004006673A1 (de) * 2004-02-11 2005-09-08 Windmöller & Hölscher Kg Druckwerk mit einem von einem Trägerhalter gehaltenen Rakelmesserträger
US20080034811A1 (en) * 2006-08-10 2008-02-14 Klaus Kubik Device for the sectional application of liquor to a fabric web
WO2008090625A1 (fr) * 2007-01-26 2008-07-31 Ibiden Co., Ltd. Appareil pour former une couche périphérique externe et procédé de fabrication d'une structure en nid d'abeilles
CN102520670A (zh) * 2011-12-16 2012-06-27 佛山市锦德机械设备有限公司 一种刮刀数字控制系统及用于该系统的数据库的创建方法
CN102717586B (zh) * 2012-06-18 2014-04-23 运城制版印刷机械制造有限公司 基于色彩管理操作系统的凹版印刷机
CN105058980B (zh) * 2015-08-12 2017-08-29 无锡赛丽特科技有限公司 卧式凹版转移印纸机的刮刀装置
CN106004035B (zh) * 2016-07-14 2018-12-18 中山松德印刷机械有限公司 一种移动式刮刀装置
CN110065302B (zh) * 2019-04-04 2020-12-22 陕西北人印刷机械有限责任公司 一种用于凹印机的刀丝去除系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB637333A (en) * 1946-10-23 1950-05-17 Champlain Company Inc Enclosed fountain gravure press
US3780670A (en) * 1972-08-07 1973-12-25 Faustel Inc Doctor blade assembly
DE2327383A1 (de) * 1973-05-29 1975-01-02 Burda Farben Kg Vorrichtung zur bestimmung des rakelanstellwinkels bei tiefdruckrotationsmaschinen
DE3201178A1 (de) * 1982-01-16 1983-07-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach "vorrichtung zum einstellen einer rakel in einer rotationstiefdruckmaschine auf den jeweiligen formzylinderdurchmesser"
JPH0688410B2 (ja) * 1983-02-10 1994-11-09 東芝機械株式会社 印刷機のインキリモ−トコントロ−ルシステム
JPH0777795B2 (ja) * 1986-04-25 1995-08-23 大日本印刷株式会社 印刷機のドクタ−装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 8, no. 276(M-346)[1713], 18 December 1984; & JP-A-59 146854 *

Also Published As

Publication number Publication date
JPH03124444A (ja) 1991-05-28
JP2972310B2 (ja) 1999-11-08
EP0419937A2 (fr) 1991-04-03
DE59007922D1 (de) 1995-01-19
US5090317A (en) 1992-02-25
DE3932232A1 (de) 1991-04-04
EP0419937A3 (en) 1991-08-14

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