EP0282828B1 - Lissoir pour feuilles dans la zone d'alimentation d'une machine à traitement de feuilles - Google Patents

Lissoir pour feuilles dans la zone d'alimentation d'une machine à traitement de feuilles Download PDF

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Publication number
EP0282828B1
EP0282828B1 EP88103251A EP88103251A EP0282828B1 EP 0282828 B1 EP0282828 B1 EP 0282828B1 EP 88103251 A EP88103251 A EP 88103251A EP 88103251 A EP88103251 A EP 88103251A EP 0282828 B1 EP0282828 B1 EP 0282828B1
Authority
EP
European Patent Office
Prior art keywords
sheet
smoothing
brush
laying
arms
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
EP88103251A
Other languages
German (de)
English (en)
Other versions
EP0282828A1 (fr
Inventor
Hellmuth Rehwagen
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 AT88103251T priority Critical patent/ATE57887T1/de
Publication of EP0282828A1 publication Critical patent/EP0282828A1/fr
Application granted granted Critical
Publication of EP0282828B1 publication Critical patent/EP0282828B1/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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36—Article guides or smoothers, e.g. movable in operation

Definitions

  • the invention relates to a sheet smoothing device in the feed area of a sheet processing machine according to the preamble of the first claim for protection.
  • a sheet smoothing device is known from DE-C 3 521 590. Above the lay-on sheet, a bar can be moved up and down transversely to the direction of the sheet inlet in the area of the gripper edge of the sheet which is raised by a control device each time the sheet is pulled off by the pre-grippers and approximately smooth again to smooth the gripper edge of the next sheet Bow is lowered.
  • the disadvantage here is that the rigid beam can not be lowered directly onto the next sheet, because otherwise the sheet entry is hindered.
  • a sheet smoothing device in the feed area of a sheet-processing machine in which a hold-down device for smoothing and stretching holding down the sheets on the transport plane is provided, which is designed as a smoothing roller, which is transverse to the sheet conveying direction Axle extending transport plane is freely rotatable and is mounted approximately vertically movable away from the transport plane.
  • Axle extending transport plane is freely rotatable and is mounted approximately vertically movable away from the transport plane.
  • the fact that the smoothing roller runs freely lying on the sheet prevents damage to a pressure already applied to the sheet.
  • a disadvantage of this device is that the smooth roller that is constantly in contact makes it difficult to separate the sheet that is being drawn off from the next sheet. There is a risk that, as a result of electrostatic charging, the subsequent sheet below will be pulled upwards in part or over the entire width. This would adversely affect the flatness of the newly arriving sheet at its leading edge.
  • the invention has for its object to provide a sheet smoothing device on the contact sheet of a sheet-processing machine of the type mentioned, which makes it possible that neither the alignment process nor the running of the sheet into the machine are affected.
  • the sheet smoothing device is used in conventional sheet feeders.
  • FIGS. 1 and 2 there is a contact sheet 1 on which the sheets 2 to be fed to the sheet-processing machine are fed.
  • a smoothing brush 3 which can be swiveled up and down, is arranged transversely to the feed direction above the contact plate 1 or the sheet 2 fed thereon.
  • the bristles 20 of the smoothing brush 3 are preferably directed at an angle obliquely downwards onto the contact plate 1.
  • two arms 13 are fastened at a distance from one another in the direction of the sheet travel, which arms 13 are rotatably mounted with the smoothing brush 3 about an axis of rotation 14 extending transversely to the direction of the sheet travel.
  • pins are provided on the arms 13, which are rotatably received in holders 19 arranged fixed to the frame. These are received on the machine side wall 4 of the sheet-processing machine in a crossmember 6, which is fastened in bearing plates 5.
  • the two arms 13 are each assigned a spring rod 16 which is connected in the joint 15 to the end of the respective arm 13.
  • the spring rod 16 is supported on a support plate 17 which is connected to the holders 19.
  • the spring rod 16 is pressed up under spring pressure.
  • the smoothing brush 3 is pushed with the bristles 20 downward in the direction of the contact plate 1 onto the sheet 2 located thereon.
  • the swiveling path of the smoothing brush 3 downwards and thus the contact pressure of the bristles 20 on the bow 2 is by an adjusting nut 21 of the spring rod 16 depending on the properties, e.g. Thickness of the arch 2, adjustable.
  • the bristles should have 20 natural hair, e.g. have machine-combed horsehair.
  • a device controlled by compressed air which consists of a compressed air source, not shown, control valve 7 with compressed air connection 8 and a compressed air cylinder 10 with pressure piece 11 and acts against the pressure of the spring rod 16 on a shoulder 12 of the arms 13, the smooth brush 3 is under pressure " Lifted off "from sheet 2. When the pressure is "on”, the smoothing brush 3 lowers again onto the sheet 2.
  • the compressed air cylinder 10 is fastened to the crossmember 6 by means of a foldable clamping device 9.
  • the particular advantage of the invention is that after pulling the side mark the sheet can be fed straight and without prancing to the impression cylinder, even if thin, wave-forming paper is used as the material. It helps to improve the quality of the print with regard to doubling, especially with thin print media.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Advancing Webs (AREA)
  • Soil Working Implements (AREA)
  • Processing Of Meat And Fish (AREA)

Claims (3)

1. Dispositif de lissage de feuilles dans la zone d'alimentation d'une machine de traitement de feuilles, comportant une tôle de marge (1) agencée avant les balanciers, sur laquelle les feuilles (2) peuvent être amenées à la machine, et un lissoir de feuilles s'étendant sur toute la largeur de la tôle de marge (1), qui est agencé au-dessus de la tôle de marge (1) transversalement à la direction de l'arrivée des feuilles directement avant les taquets avant de la machine de traitement de feuilles et qui, à chaque fois, est abaissé lorsque l'impression est mise en route et soulevé lorsque l'impression est arrêtée, par un dispositif de commande, caractérisé en ce que, en tant que lissoir de feuilles, est prévue une brosse de raclage de lissage (3) s'étendant sur toute la largeur de la tôle de marge (1).
2. Dispositif de lissage de feuilles selon la revendication 1, caractérisé en ce que les poils (20) de la brosse (3) abaissée sont inclinés vers le bas.
3. Dispositif de lissage de feuilles selon les revendications 1 ou 2, caractérisé en ce que, sur le corps (18) de la brosse (3), sont fixés deux bras (13) de façon écartée l'un de l'autre dans la direction de déplacement des feuilles, en ce que les deux bras (13) avec la brosse (3) sont montés rotatifs, dans des supports (19) fixés au bâti, autour d'un axe de rotation (14) s'étendant transversalement à la direction de déplacement des feuilles, en ce que, aux deux bras (13), est associée une tige à ressort (16) s'appuyant de façon fixée au bâti (4, 5, 6, 17, 19), qui est reliée à l'extrémité du bras respectif (13) dans une articulation (15), et en ce que la brosse (3) peut être pressée avec les poils (20), élastiquement, par la tige à ressort (16) réglable au moyen d'un écrou (21), directement sur la feuille (2) déposée, et être soulevée de la feuille (2) lorsque l'impression est arrêtée, par un dispositif (7, 8, 10, 11) actionné par de l'air comprimé, qui agit sur une saillie (12) des bras (13) contre la pression de la tige (16).
EP88103251A 1987-03-17 1988-03-03 Lissoir pour feuilles dans la zone d'alimentation d'une machine à traitement de feuilles Expired - Lifetime EP0282828B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103251T ATE57887T1 (de) 1987-03-17 1988-03-03 Bogenglaetteinrichtung im zufuehrbereich einer bogenverarbeitenden maschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8703993U 1987-03-17
DE8703993U DE8703993U1 (de) 1987-03-17 1987-03-17 Bogenglätteinrichtung im Zuführbereich einer bogenverarbeitenden Maschine

Publications (2)

Publication Number Publication Date
EP0282828A1 EP0282828A1 (fr) 1988-09-21
EP0282828B1 true EP0282828B1 (fr) 1990-10-31

Family

ID=6805970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103251A Expired - Lifetime EP0282828B1 (fr) 1987-03-17 1988-03-03 Lissoir pour feuilles dans la zone d'alimentation d'une machine à traitement de feuilles

Country Status (3)

Country Link
EP (1) EP0282828B1 (fr)
AT (1) ATE57887T1 (fr)
DE (2) DE8703993U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130805C2 (de) * 1991-09-17 1994-01-27 Koenig & Bauer Ag Einrichtung an einem Zylinder für Bogenrotationsdruckmaschinen
DE4435264C2 (de) * 1994-10-01 2001-05-10 Heidelberger Druckmasch Ag Bogenniederhalter
DE19710630C2 (de) * 1997-03-14 1999-11-11 Roland Man Druckmasch Vorrichtung zum Ausrichten von in fortlaufender Reihe transportierten flachen Gegenständen
DE10207198C5 (de) * 2002-02-21 2014-06-26 Koenig & Bauer Aktiengesellschaft Bändertisch
DE10246297B4 (de) * 2002-10-02 2007-01-25 Man Roland Druckmaschinen Ag Niederhaltereinrichtung in der Bogenanlage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889942A (en) * 1973-10-23 1975-06-17 Wilber B Robnolte Device for facilitating the feeding of sheets into a reproduction machine or the like

Also Published As

Publication number Publication date
DE8703993U1 (de) 1987-04-30
EP0282828A1 (fr) 1988-09-21
DE3860902D1 (de) 1990-12-06
ATE57887T1 (de) 1990-11-15

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