EP0782968A1 - Méthode et appareils pour maintenir des substrats sur une bande transporteuse d'une machine d'impression - Google Patents

Méthode et appareils pour maintenir des substrats sur une bande transporteuse d'une machine d'impression Download PDF

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Publication number
EP0782968A1
EP0782968A1 EP96119783A EP96119783A EP0782968A1 EP 0782968 A1 EP0782968 A1 EP 0782968A1 EP 96119783 A EP96119783 A EP 96119783A EP 96119783 A EP96119783 A EP 96119783A EP 0782968 A1 EP0782968 A1 EP 0782968A1
Authority
EP
European Patent Office
Prior art keywords
printing cylinder
conveyor belt
sheet
substrate
printing
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
EP96119783A
Other languages
German (de)
English (en)
Other versions
EP0782968B1 (fr
Inventor
Martin Greive
Anton Rodi
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 DE19614717A external-priority patent/DE19614717A1/de
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0782968A1 publication Critical patent/EP0782968A1/fr
Application granted granted Critical
Publication of EP0782968B1 publication Critical patent/EP0782968B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/54—Article strippers, e.g. for stripping from advancing elements
    • B65H29/56—Article strippers, e.g. for stripping from advancing elements for stripping from elements or machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S271/00—Sheet feeding or delivering
    • Y10S271/90—Stripper

Definitions

  • the object of the invention is to keep the substrates reliably on the conveyor belt when they pass through a printing nip.
  • the invention is based on the knowledge that the problems mentioned are caused by insufficient adhesion of the front edge of a substrate to the conveyor belt.
  • the reason for this insufficient adhesion is that the holding forces mentioned are less effective at the edges of the substrate. If it is possible to hold the front edge of the substrate on the conveyor belt or to reverse the beginning of detachment from the conveyor belt, it can therefore be expected that the subsequent part of the substrate remains on the conveyor belt.
  • the blade or threat may be made of any material that is sufficiently strong and durable, e.g. B. a leaf spring or a steel wire. Some deflection of the sheet or wire as it moves toward the impression cylinder may be desirable to achieve the substrate leading edge in this embodiment as well not stripped off all at once, but continuously from the corners.
  • the guide surface 20 leads the substrate to an arrangement of guide rollers 21 which are arranged at a short distance above the conveyor belt.
  • the guide rollers 21 can touch the substrate surface without the surface being smeared.
  • the substrate 2 then lies on the conveyor belt 1 and is transported further by this.
  • the substrate 2 can be a sheet of paper or another printable object, such as glass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Rotary Presses (AREA)
EP96119783A 1995-12-18 1996-12-10 Méthode et appareils pour maintenir des substrats sur une bande transporteuse d'une machine d'impression Expired - Lifetime EP0782968B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19547087 1995-12-18
DE19547087 1995-12-18
DE19614717 1996-04-15
DE19614717A DE19614717A1 (de) 1995-12-18 1996-04-15 Verfahren und Vorrichtungen zum Halten von Substraten auf einem Transportband einer Druckmaschine

Publications (2)

Publication Number Publication Date
EP0782968A1 true EP0782968A1 (fr) 1997-07-09
EP0782968B1 EP0782968B1 (fr) 2001-10-17

Family

ID=26021340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119783A Expired - Lifetime EP0782968B1 (fr) 1995-12-18 1996-12-10 Méthode et appareils pour maintenir des substrats sur une bande transporteuse d'une machine d'impression

Country Status (5)

Country Link
US (1) US5727466A (fr)
EP (1) EP0782968B1 (fr)
JP (1) JPH09174802A (fr)
CN (1) CN1157216A (fr)
AU (1) AU723128B2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921271A1 (de) * 1998-06-03 1999-12-09 Heidelberger Druckmasch Ag Verfahren zum Fördern von Bogen in einer Druckmaschine sowie eine Vorrichtung zur Durchführung des Verfahrens
US6293545B1 (en) * 1999-12-15 2001-09-25 Xerox Corporation Stripper blade assembly
DE10134151B4 (de) 2001-07-13 2005-05-25 Heidelberger Druckmaschinen Ag Vorrichtung zum Vereinzeln von Druckplatten
CN102975497A (zh) * 2011-09-02 2013-03-20 无锡市德赛数码科技有限公司 数码滚筒式喷墨条码机的输送装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701774C (de) * 1939-01-07 1941-01-23 Carl Fr Brauer G M B H Bogenabwerfer fuer Rotationsschablonendrucker
US3955916A (en) * 1975-01-13 1976-05-11 Xerox Corporation Fuser roll sheet stripping apparatus
US3992000A (en) * 1974-11-20 1976-11-16 Xerox Corporation Sheet stripper
US4244465A (en) 1978-04-21 1981-01-13 Taihei Chemicals Limited Electrostatic holding and conveying apparatus
US4447054A (en) * 1981-01-23 1984-05-08 Fuji Xerox Co., Ltd. Sheet peeling pawl
US4511238A (en) * 1983-07-13 1985-04-16 Savin Corporation Traversing, intermittently contacting sheet pickoff for electrophotographic copier
EP0297227A2 (fr) 1987-04-14 1989-01-04 Abisare Co., Ltd. Ensemble de machine présentant un dispositif de maintien utilisant de l'électricité statique
US4806985A (en) * 1986-07-11 1989-02-21 Xerox Corporation Stripper fingers

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US162892A (en) * 1875-05-04 Improvement in gilding-machines
FR958832A (fr) * 1950-03-21
US3554124A (en) * 1968-11-12 1971-01-12 Continental Can Co Protective device for lithographic press
US3695756A (en) * 1970-10-29 1972-10-03 Xerox Corp Sheet stripping apparatus
US4072307A (en) * 1977-03-25 1978-02-07 Xerox Corporation Corner sheet stripper
US4156524A (en) * 1977-06-23 1979-05-29 Xerox Corporation Roll fuser stripping mechanism
JPS5548769A (en) * 1978-10-04 1980-04-08 Ricoh Co Ltd Transfer paper separating and detecting device
GB2066781B (en) * 1979-12-20 1983-10-26 Ricoh Kk Copy sheet separation and transportation apparatus
US4386845A (en) * 1979-12-29 1983-06-07 Mita Industrial Company Limited Electrostatic copying apparatus
US4373714A (en) * 1980-03-05 1983-02-15 Tokyo Shibaura Denki Kabushiki Kaisha Transfer device
JPS56162769A (en) * 1980-05-20 1981-12-14 Fuji Xerox Co Ltd Transfer member stripper in electrophotographic copier
DE3023996A1 (de) * 1980-06-26 1982-01-14 Olympia Werke Ag, 2940 Wilhelmshaven Abstreifvorrichtung fuer kopierpapier von einer fotoleiterbahn in einem elektrofotografischen kopiergeraet
JPS57176076A (en) * 1981-04-22 1982-10-29 Ricoh Co Ltd Separating device of copying machine
JPS5872176A (ja) * 1981-10-26 1983-04-30 Ricoh Co Ltd 電子複写機の転写紙分離装置
JPS6159376A (ja) * 1984-08-31 1986-03-26 Fuji Xerox Co Ltd サイドストリツプフインガ−装置
JPS62158459U (fr) * 1986-03-28 1987-10-08
KR890004420B1 (ko) * 1986-11-04 1989-11-03 삼성반도체통신 주식회사 반도체 바이 씨 모오스장치의 제조방법
JPH0654403B2 (ja) * 1987-03-23 1994-07-20 富士ゼロックス株式会社 用紙剥離爪
JP2521448Y2 (ja) * 1990-04-24 1996-12-25 理想科学工業株式会社 孔版印刷装置
JP2679896B2 (ja) * 1991-06-26 1997-11-19 株式会社リコー 謄写印刷機
US5217220A (en) * 1991-08-19 1993-06-08 Carlson Herbert L Diverter for a printing press
DE4218422C2 (de) * 1992-06-04 1994-04-28 Heidelberger Druckmasch Ag Bogen-Offsetrotationsdruckmaschine mit herausnehmbarem Eindruck- oder Veredelungswerk
JPH05338855A (ja) * 1992-06-04 1993-12-21 Ricoh Co Ltd 複写機のジャム紙検出装置
US5244294A (en) * 1992-06-29 1993-09-14 Apple Computer, Inc. Apparatus for transporting wet print media and method for same
US5517292A (en) * 1993-06-01 1996-05-14 Oki Electric Industry Co., Ltd. Fusing apparatus having a paper separating unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701774C (de) * 1939-01-07 1941-01-23 Carl Fr Brauer G M B H Bogenabwerfer fuer Rotationsschablonendrucker
US3992000A (en) * 1974-11-20 1976-11-16 Xerox Corporation Sheet stripper
US3955916A (en) * 1975-01-13 1976-05-11 Xerox Corporation Fuser roll sheet stripping apparatus
US4244465A (en) 1978-04-21 1981-01-13 Taihei Chemicals Limited Electrostatic holding and conveying apparatus
US4447054A (en) * 1981-01-23 1984-05-08 Fuji Xerox Co., Ltd. Sheet peeling pawl
US4511238A (en) * 1983-07-13 1985-04-16 Savin Corporation Traversing, intermittently contacting sheet pickoff for electrophotographic copier
US4806985A (en) * 1986-07-11 1989-02-21 Xerox Corporation Stripper fingers
EP0297227A2 (fr) 1987-04-14 1989-01-04 Abisare Co., Ltd. Ensemble de machine présentant un dispositif de maintien utilisant de l'électricité statique

Also Published As

Publication number Publication date
AU7538596A (en) 1997-06-26
EP0782968B1 (fr) 2001-10-17
CN1157216A (zh) 1997-08-20
US5727466A (en) 1998-03-17
AU723128B2 (en) 2000-08-17
JPH09174802A (ja) 1997-07-08

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