EP0732207A1 - Dispositif de saisie pour une bande - Google Patents

Dispositif de saisie pour une bande Download PDF

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Publication number
EP0732207A1
EP0732207A1 EP96103835A EP96103835A EP0732207A1 EP 0732207 A1 EP0732207 A1 EP 0732207A1 EP 96103835 A EP96103835 A EP 96103835A EP 96103835 A EP96103835 A EP 96103835A EP 0732207 A1 EP0732207 A1 EP 0732207A1
Authority
EP
European Patent Office
Prior art keywords
web
sheets
catching
rollers
plates
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
EP96103835A
Other languages
German (de)
English (en)
Other versions
EP0732207B1 (fr
Inventor
Stefan Prohaska
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert 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 Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0732207A1 publication Critical patent/EP0732207A1/fr
Application granted granted Critical
Publication of EP0732207B1 publication Critical patent/EP0732207B1/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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/18—Web break detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/20—Safety devices preventing damage

Definitions

  • the invention relates to a web catching device with two catching elements according to the preamble of claim 1.
  • DE-PS 21 56 505 shows a device for preventing printing unit damage in the case of paper web tears, in which a pair of pinch rollers is provided for gripping the paper web. In the printing operation, these pinch rollers are separated from each other and a paper web is guided without contact through a catch gap formed in this way.
  • the invention has for its object to provide a web catching device with two catching elements, the switching time are further reduced can.
  • the web catching device according to the invention is shown in the drawing and is described in more detail below.
  • the drawing shows a schematic side view of the web catching device according to the invention.
  • at least one roller 1 can be brought into operative connection with the second roller 2.
  • rollers 1, 2 each mounted on a pivot lever 6 and pivoted by means of pneumatic cylinder 7. Both rollers 1, 2 can be driven at web speed via drives, not shown.
  • z. B. a4 3 mm
  • a1 30 mm.
  • the sheets 8, 9 are preferably approximately 10 mm wider than the width of the web 4.
  • An intermediate space 11 through which the web 4 runs approximately in the center is thus delimited by the sheets 8, 9.
  • the sheets 8, 9 are provided on their outer sides with two bent legs 14, 16 pointing away from one another and pointing in the transport direction “T”. It is also possible to direct these legs 14, 16 against the transport direction "T” in such a way that the distance a1 becomes a distance a3, e.g. B.
  • the sheets 8, 9 can also be provided with side sheets, so that there is a guide channel which is closed on four sides and is only open on the entry and exit side of the web 4.
  • a second pair of plates 8, 9 can be provided in mirror image of the pair of clamping rollers before the pair of clamping rollers. It is also possible to attach only a pair of sheets 8, 9 in front of the pair of pinch rollers.
  • the two rollers 1, 2 are spaced apart by the width s around the catching gap 3, in order to enable the web 4 to be guided between the two rollers 1, 2 without contact.
  • the width s of this catch gap 3 should be minimal in order to achieve the shortest possible setting time of the rollers 1, 2, which are of lightweight construction, in the event of a web break.
  • the web 4 is guided approximately in the middle of the catch gap 3 and the sheets 8, 9, the width s of the catch gap 3 preferably being less than the distance a1 of the sheets 8, 9 aligned with the catch gap 3
  • the lower sheet 8, 9 automatically forms an air cushion that stabilizes the web 4. Flutter and swing of the web 4 is thus largely avoided. Therefore, the width s of the catching gap 3 between the rollers 1, 2 can be made minimal.
  • the pneumatic cylinders 7 are actuated by means of a sensor and control system (not shown) and the two rollers 1, 2 only have to travel a minimal distance in order to come into operative connection, i.e. to securely clamp web 4.
  • the sheets 9, 11 are executed flat in the present example, but they can also aerodynamically favorable profile shapes, for. B. have a wing shape.

Landscapes

  • Advancing Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP96103835A 1995-03-14 1996-03-12 Dispositif de saisie pour une bande Expired - Lifetime EP0732207B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19509167 1995-03-14
DE19509167A DE19509167C2 (de) 1995-03-14 1995-03-14 Bahnfangvorrichtung

Publications (2)

Publication Number Publication Date
EP0732207A1 true EP0732207A1 (fr) 1996-09-18
EP0732207B1 EP0732207B1 (fr) 1998-09-16

Family

ID=7756625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103835A Expired - Lifetime EP0732207B1 (fr) 1995-03-14 1996-03-12 Dispositif de saisie pour une bande

Country Status (4)

Country Link
US (1) US5615610A (fr)
EP (1) EP0732207B1 (fr)
JP (1) JP2901912B2 (fr)
DE (2) DE19509167C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761355B1 (fr) * 1997-03-26 1999-06-11 Heidelberg Harris Sa Dispositif de retenue d'une bande dans la superstructure d'une machine rotative a imprimer
FR2766472B1 (fr) * 1997-07-22 1999-10-29 Heidelberger Druckmasch Ag Dispositif de secours en cas de rupture de bande de papier dans une machine rotative a imprimer en fonctionnement
JP2958766B1 (ja) * 1998-05-20 1999-10-06 株式会社東京機械製作所 ウエブ紙の胴巻き防止装置
AT407036B (de) * 1998-07-14 2000-11-27 Voest Alpine Ind Anlagen Fangvorrichtung
DE10132156C5 (de) * 2001-07-03 2011-12-01 Manroland Ag Bahnstabilisierung zur berührungslosen Bahnführung bei fliegend wechselbaren Druckeinheiten
DE102004014777B4 (de) * 2004-03-26 2014-04-10 Baldwin Germany Gmbh Bahnfangvorrichtung einer Rollenrotations-Druckmaschine
DE102004016672B3 (de) 2004-04-05 2005-10-27 Koenig & Bauer Ag Registervorrichtung mit Strangklemmung
US8584584B2 (en) * 2006-02-23 2013-11-19 Goss International Americas, Inc. Noncontact web stabilizer
DE102009000754A1 (de) 2009-02-11 2010-08-12 Koenig & Bauer Aktiengesellschaft Bahnfangvorrichtungen einer Druckmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519298A1 (fr) * 1981-12-31 1983-07-08 Roland Man Druckmasch Dispositif de guidage de la bande support d'impression entre deux groupes imprimants pour rotatives offset
JPH02222946A (ja) * 1989-02-23 1990-09-05 Konica Corp 写真フイルム巻取装置及び巻取方法
EP0563645A1 (fr) * 1992-03-28 1993-10-06 MAN Roland Druckmaschinen AG Dispositif de sécurité des bandes en marche
EP0575786A1 (fr) * 1992-06-25 1993-12-29 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif automatique de capture d'une bande de papier déchirée
EP0616966A1 (fr) * 1993-03-25 1994-09-28 Baldwin Web Controls (A Division Of Baldwin Graphic Systems, Inc.) Dispositif anti-enroulement pour machine à imprimer des bandes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD132005A1 (de) * 1977-06-02 1978-08-16 Guenter Hackenberger Trockner fuer bedruckte oder beschichtete bahnen fuer druckmaschinen oder dergleichen
DE3215473C2 (de) * 1982-04-24 1985-03-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Verhindern von Druckwerksschäden bei Druckträgerbahnrissen
US4846060A (en) * 1988-07-25 1989-07-11 Iotec Manufacturing, Inc. Printing web tensioning system
JP2511828B2 (ja) * 1988-12-26 1996-07-03 株式会社日本製鋼所 シ―ト材給送装置
DE3910556C1 (fr) * 1989-04-01 1990-10-11 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5190201A (en) * 1991-01-16 1993-03-02 Quad/Tech, Inc. Method and apparatus for detecting the presence of a web within a web dryer
JP2552595B2 (ja) * 1991-09-17 1996-11-13 株式会社東京機械製作所 走行ウエブの制振方法及び制振装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519298A1 (fr) * 1981-12-31 1983-07-08 Roland Man Druckmasch Dispositif de guidage de la bande support d'impression entre deux groupes imprimants pour rotatives offset
JPH02222946A (ja) * 1989-02-23 1990-09-05 Konica Corp 写真フイルム巻取装置及び巻取方法
EP0563645A1 (fr) * 1992-03-28 1993-10-06 MAN Roland Druckmaschinen AG Dispositif de sécurité des bandes en marche
EP0575786A1 (fr) * 1992-06-25 1993-12-29 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif automatique de capture d'une bande de papier déchirée
EP0616966A1 (fr) * 1993-03-25 1994-09-28 Baldwin Web Controls (A Division Of Baldwin Graphic Systems, Inc.) Dispositif anti-enroulement pour machine à imprimer des bandes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 529 (P - 1133) 20 November 1990 (1990-11-20) *

Also Published As

Publication number Publication date
US5615610A (en) 1997-04-01
JP2901912B2 (ja) 1999-06-07
DE59600553D1 (de) 1998-10-22
DE19509167A1 (de) 1996-09-19
EP0732207B1 (fr) 1998-09-16
DE19509167C2 (de) 1997-04-03
JPH08245026A (ja) 1996-09-24

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