EP0419937A2 - Dispositif de raclage - Google Patents

Dispositif de raclage Download PDF

Info

Publication number
EP0419937A2
EP0419937A2 EP90117492A EP90117492A EP0419937A2 EP 0419937 A2 EP0419937 A2 EP 0419937A2 EP 90117492 A EP90117492 A EP 90117492A EP 90117492 A EP90117492 A EP 90117492A EP 0419937 A2 EP0419937 A2 EP 0419937A2
Authority
EP
European Patent Office
Prior art keywords
frame
doctor
doctor blade
holder
support pieces
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.)
Granted
Application number
EP90117492A
Other languages
German (de)
English (en)
Other versions
EP0419937B1 (fr
EP0419937A3 (en
Inventor
Herbert Lübke
Volker Dipl.-Ing. Schr˦der
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 squeegee device, the squeegee of which is attached in a pivotable squeegee holder to an ink-receiving roller, preferably to the forme cylinder of a gravure printing machine, can be adjusted with an adjustable angle.
  • 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 increases the forme cylinder is changed, but the line of contact of the doctor blade with the forme cylinder is maintained unchanged.
  • the object of the invention is therefore to provide a doctor device of the type mentioned above, with which the angle of attack and the line of attack of the doctor knife on the roller and additionally the contact pressure of the doctor knife on the roller can be set reliably and quickly and in particular also during printing operation .
  • this object is achieved in a doctor blade device of the type specified at the outset in that the doctor blade holder is pivotally mounted in a frame which in turn is pivotally mounted on support pieces which are guided in a linearly adjustable manner in the frame, and in that the doctor blade holder and the frame with pivoting drives and the support pieces are provided with linear drives which can be controlled by a central control device.
  • the squeegee device can be moved linearly parallel to itself and can additionally perform swiveling movements around two parallel and spaced-apart swivel axes, so that the squeegee knife can be set at different angles and in a predetermined circumferential range of the roller in different positions can.
  • the doctor blade pressure can also be controlled.
  • the doctor device according to the invention thus makes it possible to change the degree of filling of the cups of the forme cylinder and the drying time of the ink, especially during printing. This makes it possible to achieve an optimal printing result regardless of the drying behavior of the ink processed.
  • doctor device can be automatically adjusted to different diameters of the rollers and forme cylinders.
  • the central control device is expediently a central computer which controls the swivel and linear drives in accordance with the respective program.
  • Two side walls of the frame are connected to one another by means of a crossbar 2.
  • Gear units 3 and 4 are screwed to the inner sides of each side wall 1, a motor 5 being assigned to the gear unit 4.
  • 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 also rotatably mounted in the bearing shown on the right-hand side of FIG. 1, with the right-hand side of the casting at its end facing away from the bearing 12 frame 14 is firmly connected.
  • a clamping lever 16 is placed, which 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 rotatably mounted 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, as a result of which the cast frame 14 can also be raised or lowered via the bearing pins 13 and 15.
  • 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 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 each 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 travel 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 set 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 which 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 these 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)
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
DE3932232A DE3932232A1 (de) 1989-09-27 1989-09-27 Rakelvorrichtung
DE3932232 1989-09-27

Publications (3)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694375A3 (fr) * 1994-07-29 1996-04-10 Haendle Gmbh & Co Kg Calandre pour matières premières dans l'industrie de la céramique
DE19601070A1 (de) * 1996-01-13 1997-07-17 Baldwin Gegenheimer Gmbh Verfahren und Vorrichtung zum Waschen von Druckmaschinen-Zylindern
WO2013188998A1 (fr) * 2012-06-18 2013-12-27 运城制版印刷机械制造有限公司 Presse en creux basée sur un système d'opération de gestion de couleur
CN106004035A (zh) * 2016-07-14 2016-10-12 中山松德印刷机械有限公司 一种移动式刮刀装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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

Citations (5)

* 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"
JPS59146854A (ja) * 1983-02-10 1984-08-22 Toshiba Mach Co Ltd 印刷機のインキリモ−トコントロ−ルシステム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (5)

* 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"
JPS59146854A (ja) * 1983-02-10 1984-08-22 Toshiba Mach Co Ltd 印刷機のインキリモ−トコントロ−ルシステム

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 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694375A3 (fr) * 1994-07-29 1996-04-10 Haendle Gmbh & Co Kg Calandre pour matières premières dans l'industrie de la céramique
DE19601070A1 (de) * 1996-01-13 1997-07-17 Baldwin Gegenheimer Gmbh Verfahren und Vorrichtung zum Waschen von Druckmaschinen-Zylindern
WO2013188998A1 (fr) * 2012-06-18 2013-12-27 运城制版印刷机械制造有限公司 Presse en creux basée sur un système d'opération de gestion de couleur
CN106004035A (zh) * 2016-07-14 2016-10-12 中山松德印刷机械有限公司 一种移动式刮刀装置
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

Also Published As

Publication number Publication date
JPH03124444A (ja) 1991-05-28
EP0419937B1 (fr) 1994-12-07
US5090317A (en) 1992-02-25
DE3932232A1 (de) 1991-04-04
DE59007922D1 (de) 1995-01-19
EP0419937A3 (en) 1991-08-14
JP2972310B2 (ja) 1999-11-08

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