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EP0490087B1 - Vorrichtung zur Bogenglättung am Druckzylinder in einer Bogenrotationsdruckmaschine - Google Patents

Vorrichtung zur Bogenglättung am Druckzylinder in einer Bogenrotationsdruckmaschine Download PDF

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Publication number
EP0490087B1
EP0490087B1 EP91119118A EP91119118A EP0490087B1 EP 0490087 B1 EP0490087 B1 EP 0490087B1 EP 91119118 A EP91119118 A EP 91119118A EP 91119118 A EP91119118 A EP 91119118A EP 0490087 B1 EP0490087 B1 EP 0490087B1
Authority
EP
European Patent Office
Prior art keywords
sheet
impression cylinder
nozzle
running direction
lance nozzle
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
EP91119118A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0490087A1 (de
Inventor
Dieter Bergmeier
Arno Wirz
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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
Priority claimed from DE19904039311 external-priority patent/DE4039311A1/de
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0490087A1 publication Critical patent/EP0490087A1/de
Application granted granted Critical
Publication of EP0490087B1 publication Critical patent/EP0490087B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines
    • B41F21/10Combinations of transfer drums and grippers
    • B41F21/102Combinations of transfer drums and grippers with pneumatic means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F25/00Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/04Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web

Definitions

  • the invention relates to a device for smoothing sheets on the printing cylinder in a sheet-fed printing press.
  • a device is described in the main patent, in which a blowing nozzle which moves and acts upon the machine in the work cycle ensures that the printing sheet is securely and properly placed on the printing cylinder before it enters the machine the printing gap and greater security for duplication-free and smear-free printing is also sought at high printing speeds.
  • a sword nozzle which extends over a substantial part of the width, preferably over the entire width of the printing cylinder, is particularly suitable for this purpose. This has a non-contact effect on the printing sheet for the purpose of achieving a secure and smooth contact with the printing cylinder before it enters the printing nip.
  • the object of the invention is a further improvement with the same objective as in the patent DE-A-3 920 730 (see EP-A-0 405 166) (prior art make Article 54 (3) EPC), regardless of the type of paper, to reach.
  • the air flow emerging from the blowing nozzle leads in the middle of the sheet against the running direction of the sheet, so that a smoothing movement by the air flow not only in the direction from the sheet leading edge to the trailing edge of the sheet, but also from the center to both sides.
  • blowing air emerging from the blow nozzle first reaches the sheet at its front edge and then smoothes the sheet to the sheet rear edge and on both sides.
  • a blowing nozzle in the form of an arrow is provided, in which the tip is directed against the running direction of the sheet.
  • the printing sheet 1 taken over from a preceding printing unit is transferred from a transfer drum 2 to the printing cylinder 3 of a subsequent printing unit.
  • the sheet grippers 4 grasp the printing sheet 1 at the tangent point between the transfer drum 2 and the printing cylinder 3 and pull the printing sheet through the printing gap 5 between the printing cylinder 3 and the blanket cylinder 6. Behind the printing gap 5, the printing sheet 1 is fed to a further transfer drum 7, which Passes sheet 1 to another printing unit.
  • a blowing nozzle 8 is directed against the circumference of the printing cylinder 3 at a certain distance in front of the printing nip 5 and is mounted such that it can oscillate about a pendulum axis 9 and can be coupled to a drive that drives the blowing nozzle 8 swings back and forth in the machine's work cycle, swinging in the running direction of the sheet.
  • the blowing nozzle 8 is designed as a sword nozzle, or as a sword consisting of many individual nozzles or openings, so that their nozzle opening extends over a substantial part of the width of the printing cylinder 3, advantageously over its entire width.
  • the angular range in which the blowing nozzle 8 swings is adjustable, in such a way that both the angle of attack of the blowing direction with respect to the normal through the pendulum axis 9 on the circumference of the pressure cylinder 3 and the pivoting angle can be adjusted.
  • each nozzle can advantageously be regulated individually.
  • the sword nozzle is attached to a tube 11 so that it can be adjusted in the circumferential direction.
  • the tube 11 is mounted so that it can swing about its longitudinal axis in the frame 12 of the machine.
  • a lever mechanism 13 is suitable for driving the pendulum movement.
  • the sword nozzle is pushed with a tubular housing 17 onto the jacket of a valve collar 14, which is adjustable relative to a frame part 15 by means of a screw 16.
  • the valve collar 14 is guided laterally by a driver 18.
  • a radially directed connection 19 for the air line passes through the housing 17 and is fastened with the inner end in the valve collar 14.
  • the air control for the sword nozzle takes place through the overlap of radial openings in the tube 11 with the inner end of the connection 19 or the passage in the housing 17 to the sword nozzle.
  • Settings, controls and effects correspond to the representation in the main patent.
  • the sword nozzle has an arrow shape directed with the tip against the running direction of the bow 1, as is shown in FIG. 3, which shows a plan view of the arrow shape of the sword nozzle.
  • curved-shaped sword nozzles can also be used in order to first blow air into the sheet to be printed in the middle of the sheet from the leading edge to the trailing edge of the sheet before entering the printing nip, in order to move the sheet from the leading edge to the trailing edge and at the same time from smooth the center outwards so that a safe and full contact of the sheet to be printed on the impression cylinder is achieved by this contactless action.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP91119118A 1990-12-10 1991-11-11 Vorrichtung zur Bogenglättung am Druckzylinder in einer Bogenrotationsdruckmaschine Expired - Lifetime EP0490087B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904039311 DE4039311A1 (de) 1989-06-24 1990-12-10 Vorrichtung zur bogenglaettung am druckzylinder in einer bogenrotationsdruckmaschine
DE4039311 1990-12-10

Publications (2)

Publication Number Publication Date
EP0490087A1 EP0490087A1 (de) 1992-06-17
EP0490087B1 true EP0490087B1 (de) 1994-11-02

Family

ID=6419944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91119118A Expired - Lifetime EP0490087B1 (de) 1990-12-10 1991-11-11 Vorrichtung zur Bogenglättung am Druckzylinder in einer Bogenrotationsdruckmaschine

Country Status (6)

Country Link
EP (1) EP0490087B1 (zh)
JP (1) JPH04275150A (zh)
CN (1) CN1022554C (zh)
AT (1) ATE113533T1 (zh)
CA (1) CA2055586C (zh)
DE (1) DE59103420D1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19549845B4 (de) * 1995-06-24 2007-07-12 Heidelberger Druckmaschinen Ag Vorrichtung zur Erzielung einer einwandfreien Auflage eines Bedruckstoffes in einer Druckmaschine
DE19753137C1 (de) * 1997-11-29 1998-10-15 Roland Man Druckmasch Bogenführungseinrichtung im Bereich von Greifersystemen einer Druckmaschine
DE10000308A1 (de) * 2000-01-05 2001-07-12 Heidelberger Druckmasch Ag Luftleitsystem in einer Bogendruckmaschine
JP2008156123A (ja) * 2006-12-21 2008-07-10 Heidelberger Druckmas Ag シートを処理する機械に向かってシートを供給するための装置
CN106629193B (zh) * 2016-11-18 2018-01-23 无锡祁龙胶粘制品有限公司 一种保护膜收卷用展平装置
CN114103429A (zh) * 2020-08-26 2022-03-01 北京华夏视科技术股份有限公司 印刷机纸张展平机构

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650043A (en) * 1970-04-03 1972-03-21 Overly Inc Web stabilizer
DE2603483B2 (de) * 1976-01-30 1978-06-08 Reinhard Mohn Ohg, 4830 Guetersloh Verfahren zum Führen eines Bogens zum gleichzeitigen Bedrucken mit einem Schön- und Widerdruck sowie Vorrichtung zur Durchführung des Verfahrens
JPS55102373A (en) * 1979-02-01 1980-08-05 Nippon Carbide Ind Co Ltd Preparation of artificial fish egg
DD241397A1 (de) * 1985-09-30 1986-12-10 Polygraph Leipzig Blaseinrichtung in druckmaschinen
JP2628647B2 (ja) * 1987-06-08 1997-07-09 デュプロ精工株式会社 孔版印刷機の原紙係止装置
EP0306684B1 (de) * 1987-09-11 1992-04-08 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Vorrichtung in Mehrfarbenbogenrotationsdruckmaschinen zum Anpressen eines Bogens auf den Druckzylinder
DD264651B5 (de) * 1987-10-29 1993-11-04 Kba Planeta Ag Einrichtung zur abschmierfreien bogenfuehrung
DE3920730A1 (de) * 1989-06-24 1991-01-10 Heidelberger Druckmasch Ag Vorrichtung zur bogenglaettung am druckzylinder in einer bogenrotationsdruckmaschine

Also Published As

Publication number Publication date
CN1062318A (zh) 1992-07-01
JPH04275150A (ja) 1992-09-30
DE59103420D1 (de) 1994-12-08
ATE113533T1 (de) 1994-11-15
CA2055586C (en) 1995-01-03
CN1022554C (zh) 1993-10-27
EP0490087A1 (de) 1992-06-17

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