EP0257366B1 - Dispositif pour marger en position correcte une feuille sur la table de marge d'une presse rotative - Google Patents

Dispositif pour marger en position correcte une feuille sur la table de marge d'une presse rotative Download PDF

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Publication number
EP0257366B1
EP0257366B1 EP87111208A EP87111208A EP0257366B1 EP 0257366 B1 EP0257366 B1 EP 0257366B1 EP 87111208 A EP87111208 A EP 87111208A EP 87111208 A EP87111208 A EP 87111208A EP 0257366 B1 EP0257366 B1 EP 0257366B1
Authority
EP
European Patent Office
Prior art keywords
sheet
suction
suction rolls
rolls
feed table
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
EP87111208A
Other languages
German (de)
English (en)
Other versions
EP0257366A2 (fr
EP0257366A3 (en
Inventor
Claus Simeth
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.)
Manroland AG
Original Assignee
MAN Roland 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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT87111208T priority Critical patent/ATE74870T1/de
Publication of EP0257366A2 publication Critical patent/EP0257366A2/fr
Publication of EP0257366A3 publication Critical patent/EP0257366A3/de
Application granted granted Critical
Publication of EP0257366B1 publication Critical patent/EP0257366B1/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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/14—Retarding or controlling the forward movement of articles as they approach stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/06—Suction-operated grippers

Definitions

  • the invention relates to a device for registering a sheet in the contact sheet of a sheet-fed rotary printing press according to the preamble of the first claim.
  • Suction rollers or the like viewed in the direction of sheet travel, in front of and in the vicinity of front marks in sections of the contact sheet with a fixed axis, i.e. rigidly arranged, are known per se, e.g. from DE-PS 1 152 707, DE-PS 2 330 484, DD-PS 128 414.
  • a subsequent lower sheet of a sheet relay can be conveyed and slowed down under suction, aligned, pulled downwards, but not the other, pulling upper sheet up or held up.
  • this is necessary for a safe separation of stuck together strongly adhering sheets fed to the printing press.
  • the advantage of the invention is that not only is a relative movement between the conveyor belt on the feed table and the device for registering the sheet in the feed sheet and thus the lower subsequent sheet is prevented, but it is introduced before the subsequent sheet in the covering means having front marks , the pulling sheet is pressed upwards or held up to separate it from the lower sheet below, whereby a safe separation of the two sheets can be achieved even at high machine speeds in connection with a perfect sheet system.
  • the separation of the two consecutive sheets can be further improved by combining rigid suction rollers and oscillating suction rollers with a deionization device.
  • suction rollers 1 swinging back and forth about a shaft 19 are arranged in sections 2 of the contact plate 3 in the sheet running direction in front of and in the vicinity of the front hooks 4.
  • the reciprocating suction rolls 1 are driven at the belt speed so that they always run exactly at this speed.
  • they are functionally connected to the drive of the belts 5 via a traction mechanism gear 12, for example a toothed belt drive.
  • the gearbox can also be designed so that it can be locked to compensate for tape slippage or drive losses.
  • the sheets to be fed to the contact marks of a printing press or the like can be conveyed, delayed or even brought to a standstill with a conveying speed which is conducive to the paper quality and sheet size and with a certain sheet spacing to achieve a safe alignment on the front and side marks for the sheet.
  • a number of non-described sheet retarding devices are suitable for accomplishing this task, which, with a certain outlay on machine elements, e.g. elliptical wheels, cams, curves, swinging wheel gears and the like.
  • the reciprocating suction rolls 1 are arranged one after the other according to the sheet format.
  • Each front mark 4 is assigned a reciprocating suction roll 1 or a corresponding pair of suction rolls.
  • the back and forth oscillating suction rollers 1 are fastened on a shaft 7 and can be driven in a two-armed lever 8 and a one-armed lever 9 so that they can pivot about a further shaft 19 in the system.
  • the second lever 9 is connected via a roller 10 to a rotatable eccentric 11.
  • the pivoting movement is cam-controlled via this gear 8, 10, 11, and the stroke and start of the pivoting movement can be adjustable in a known manner by appropriate adjustment of the eccentric 11, for example on different bends formats or paper qualities.
  • the lifting movement begins so in time and is controlled by the curve shape in such a way that the lower sheet 6 separated from the upper pulling sheet 13, first by lifting and holding it above the level of the contact sheet, can reach the front marks 4 as freely as possible by simultaneously carrying out a small transport by timely suction of the lower sheet 6 in the direction of the front marks 4 during the downward movement of the reciprocating suction rolls 1 and thus a tightening of this sheet 6 when it is inserted under the covering means of the front marks.
  • the pulling upper sheet 13 lies on the sheet 6 again at the latest when the subsequent lower sheet 6 bumps against the front marks 4, as a result of which the lowering sheet 13 is additionally smoothed out.
  • the reciprocating suction rolls 1 are provided on the circumference with suction nozzles 24 or the like. Bores in a known manner, through which the lower sheet 6 following the upper withdrawing sheet 13 is taken along with the rotation of the reciprocating suction rolls 1. Their surface is chosen so that they have the same coefficient of friction for all papers.
  • the suction point is chosen so that when the reciprocating suction rolls 1 are lowered from the upper reversal point, the lower subsequent sheet 6 initially runs onto the suction nozzles 24 and partially covers them. As soon as the suction nozzles 24 of the reciprocating suction rollers 1 have lowered to the level of the feed table, the suction air is switched on.
  • valves 14 which lie between a suction air source (not shown) and suction air chambers 15, which can be located, for example, within the suction rollers 1 which oscillate back and forth. Deviating from this, the timing of the suction air can also take place, for example, via a rotary slide valve with external air bore for rapid vacuum reduction or the like, which can be mounted on a shaft of a pneumatic side mark 16, not shown.
  • the level of the negative pressure can be adjusted in a known manner by hand or by motor using a control valve (not shown).
  • valves 14 are clocked only for as long as soon as the subsequent lower sheet 6 is below the front marks 4, the negative pressure can be greatly reduced or brought to zero.
  • FIG. 3 A particularly advantageous embodiment of the invention is shown schematically in FIG. 3.
  • rigid suction rolls 17 are additionally arranged in parallel over the entire sheet width.
  • the toothed belt drive 12 of the reciprocating suction rolls 1 takes place via the pivot point 20 of the rigid suction rolls 17.
  • the pivoting movement of the lifting suction rolls 1 is by means of an eccentric drive via a double-armed lever 22 pivotably mounted in the pivot point 20, the roll 10 and the adjustable eccentric 11 controllable.
  • the suction air is timed in such a way that the suction nozzles 24 of the rigid suction roller 17 suck the subsequent lower sheet 6 at an early stage.
  • An additional deionizing device 18 is installed between the reciprocating suction rollers 1 and the rigid suction rollers 17. The deionization device 18 is switched so that a constant discharge takes place. Such deionization devices are known per se and are therefore not described in detail.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Facsimiles In General (AREA)
  • Ticket-Dispensing Machines (AREA)

Claims (5)

  1. Dispositif pour marger en position correcte une feuille (13, 6) alimentée à partir d'un ensemble de feuilles qui se chevauchent, le dispositif étant monté en-dessous de la table de marge (3) et en amont de taquets de marge avant (4) d'une presse rotative à feuilles, et comportant, en amont des taquets de marge avant (4), en se référant à la direction de déplacement des feuilles, et à proximité de ces taquets, des rouleaux d'aspiration (1) à buses d'aspiration (24) pouvant être sollicitées de manière régulée dans le temps, par de l'air d'aspiration réglable quant à sa dépression,
    caractérisé
    - en ce que les rouleaux d'aspiration (1), en-dessous des feuilles, peuvent être pivotés au-dessus du plan de la table de marge (3), entre un point d'inversion inférieur et supérieur, dans et à l'encontre de la direction de déplacement des feuilles,
    - en ce que le mouvement de pivotement peut être commandé de manière à pouvoir communiquer un mouvement de soulèvement à la feuille (13) entrainée,
    - en ce que l'air d'aspiration peut être enclenché à proximité immédiate du point d'inversion inférieur, pour la saisie de la feuille inférieure suivante (6), et
    - en ce que les rouleaux d'aspiration peuvent être entraînée à la vitesse de bandes sans fin (5) en révolution de la table de marge, par l'intermédiaire d'une transmission à élément de traction (12) ou analogue.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'en amont, en se référant à la direction de déplacement des feuilles, et à proximité des rouleaux d'aspiration (1) animés d'un mouvement oscillant alternatif, sont disposés des rouleaux d'aspiration fixes (17), rouleaux entre-lesquels est disposé un dispositif de désionisation d'air de soufflage (18), en ce que les rouleaux d'aspiration (1) animés d'un mouvement oscillant alternatif et les rouleaux d'aspiration fixes (17) peuvent être entraînés à le vitesse des bandes sans fin (5) de la table de marge, par l'intermédiaire d'une transmission à élément de traction (12), et en ce que de l'air de soufflage désionisé peut être insufflé de manière synchronisée entre la feuille supérieure (13) entraînée et la feuille suivante inférieure (6) transportée sous l'effet de l'aspiration, cette insufflation pouvant être interrompue de manière régulée dans le temps, juste avant que la feuille inférieure suivante (6) recouvre des buses de soufflage d'air (21) du dispositif de désionisation d'air de soufflage (18).
  3. Dispositif selon la revendication 1, caractérisé en ce que l'entraînement des rouleaux d'aspiration (1) animés d'un mouvement oscillant alternatif se fait par l'intermédiaire du point de rotation d'un arbre (19) monté avec son axe en position fixe dans la table de marge.
  4. Dispositif selon la revendication 2, caractérisé en ce que l'entraînement des rouleaux d'aspiration (1) animés d'un mouvement oscillant alternatif se fait par l'intermédiaire du point de rotation (20) des rouleaux d'aspiration fixee (17).
  5. Dispositif selon les revendications 1 à 4, caractérisé en ce que le mouvement de pivotement des rouleaux d,aspiration (1) animés d'un mouvement oscillant alternatif peut être commandé de manière réglable quant à la course et au point d'entrée en action, au moyen d'un système d'entraînement à excentrique (8, 10, 11; 22, 10, 11).
EP87111208A 1986-08-27 1987-08-04 Dispositif pour marger en position correcte une feuille sur la table de marge d'une presse rotative Expired - Lifetime EP0257366B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87111208T ATE74870T1 (de) 1986-08-27 1987-08-04 Vorrichtung zur registerhaltigen anlage eines bogens im anlegeblech einer rotationsdruckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3629080 1986-08-27
DE19863629080 DE3629080A1 (de) 1986-08-27 1986-08-27 Vorrichtung zur registerhaltigen anlage eines bogens im anlegeblech einer rotationsdruckmaschine

Publications (3)

Publication Number Publication Date
EP0257366A2 EP0257366A2 (fr) 1988-03-02
EP0257366A3 EP0257366A3 (en) 1990-01-24
EP0257366B1 true EP0257366B1 (fr) 1992-04-15

Family

ID=6308262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111208A Expired - Lifetime EP0257366B1 (fr) 1986-08-27 1987-08-04 Dispositif pour marger en position correcte une feuille sur la table de marge d'une presse rotative

Country Status (5)

Country Link
US (1) US4824094A (fr)
EP (1) EP0257366B1 (fr)
JP (1) JPH0615238B2 (fr)
AT (1) ATE74870T1 (fr)
DE (1) DE3629080A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276871B (en) * 1993-04-07 1997-04-23 Licentia Gmbh Method of and apparatus for separately removing flat articles from a stack
DE19906501B4 (de) * 1999-02-17 2005-08-25 Koenig & Bauer Ag Einrichtung zum Zuführen von Bogen
DE10017251A1 (de) * 2000-04-06 2001-10-11 Ltg Mailaender Gmbh Vorrichtung zur Bogenanlage
DE10056018B4 (de) * 2000-11-11 2014-03-13 Koenig & Bauer Aktiengesellschaft Einrichtung zur Unterstützung der Bogenführung und Bogenablage
US20020074713A1 (en) * 2000-12-18 2002-06-20 Gbr Systems Corporation Anti-static sheet feeding mechanism
CN100572233C (zh) * 2005-02-01 2009-12-23 海德堡印刷机械股份公司 用于在处理页张的机器中节拍地产生吹气或吸气的装置
SG144008A1 (en) * 2007-01-04 2008-07-29 Nanyang Polytechnic Parts transfer system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD128414A1 (de) * 1976-09-21 1977-11-16 Reinhard Naumann Vorrichtung zum ausrichten der vorderkante von werkstuecken,insbesondere druckbogen
DE2330484C3 (de) * 1973-06-15 1980-08-14 Koenig & Bauer Ag, 8700 Wuerzburg Vorrichtung zum Anlegen und Zuführen von vereinzelten, geschuppt zugeführten Bogen in Bogenrotationsdnickm aschinen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190644A (en) * 1962-12-12 1965-06-22 Mabeg Maschinenbau Gmbh Nachf Sheet-feeding device
US2160906A (en) * 1936-01-23 1939-06-06 Faber & Schleicher A G Sheet feeding and registering device
US2285076A (en) * 1939-08-11 1942-06-02 Backhouse Headley Townsend Sheet feeder
DE964146C (de) * 1951-08-22 1957-05-16 Headley Townsend Backhouse Bogenanlegemaschine fuer Druck- und andere Maschinen
DE1152707B (de) * 1961-12-27 1963-08-14 Mabeg Maschb G M B H Nachf Hen Zwischen Anlegefoerdertisch und Vordermarken wirksame Bogenverlangsamungs- und Ausricht-vorrichtung
DE2313150C3 (de) * 1973-03-16 1981-12-24 Koenig & Bauer AG, 8700 Würzburg Bogenzuführung für Bogenrotationsdruckmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2330484C3 (de) * 1973-06-15 1980-08-14 Koenig & Bauer Ag, 8700 Wuerzburg Vorrichtung zum Anlegen und Zuführen von vereinzelten, geschuppt zugeführten Bogen in Bogenrotationsdnickm aschinen
DD128414A1 (de) * 1976-09-21 1977-11-16 Reinhard Naumann Vorrichtung zum ausrichten der vorderkante von werkstuecken,insbesondere druckbogen

Also Published As

Publication number Publication date
EP0257366A2 (fr) 1988-03-02
DE3629080C2 (fr) 1988-11-10
JPH0615238B2 (ja) 1994-03-02
ATE74870T1 (de) 1992-05-15
JPS6360755A (ja) 1988-03-16
EP0257366A3 (en) 1990-01-24
DE3629080A1 (de) 1988-03-10
US4824094A (en) 1989-04-25

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