EP0129104A2 - Margeur pour machines d'impression rotatives - Google Patents

Margeur pour machines d'impression rotatives Download PDF

Info

Publication number
EP0129104A2
EP0129104A2 EP84106029A EP84106029A EP0129104A2 EP 0129104 A2 EP0129104 A2 EP 0129104A2 EP 84106029 A EP84106029 A EP 84106029A EP 84106029 A EP84106029 A EP 84106029A EP 0129104 A2 EP0129104 A2 EP 0129104A2
Authority
EP
European Patent Office
Prior art keywords
guide rails
sheet
sheet stack
sheet feeder
stack
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
EP84106029A
Other languages
German (de)
English (en)
Other versions
EP0129104B1 (fr
EP0129104A3 (en
Inventor
Gerhard Pollich
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0129104A2 publication Critical patent/EP0129104A2/fr
Publication of EP0129104A3 publication Critical patent/EP0129104A3/de
Application granted granted Critical
Publication of EP0129104B1 publication Critical patent/EP0129104B1/fr
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/46Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/60Loosening articles in piles
    • B65H3/62Loosening articles in piles by swinging, agitating, or knocking the pile

Definitions

  • the invention relates to a sheet feeder on rotary printing presses with a horizontally freely movable support plate for the sheet stack, according to the preamble of claim 1.
  • DE-OS 22 00 755 describes a device for automatically aligning a stack of sheets, in which stops are laterally provided for aligning the stack of sheets. This makes it possible, for example, to feed sheet stacks which are displaced transversely to the conveying direction and are aligned laterally to the sheet feeder. In this case, the front side of the sheet stack in the conveying direction is placed precisely on guide rails. Even when lifting the sheet stack while the machine is running, the remaining stack is always in contact with the front guide rails until it is completely used up.
  • the disadvantage of the known embodiment is that due to the tight fit of the sheet stack on the front guide rails, a lateral movement of the same can only be carried out with considerable effort using a separate motor. There is also the risk that individual, protruding sheet layers in the front area are damaged by the lateral movement of the sheet stack. Despite the considerable construction and control effort, it is not possible in the known embodiment to perform a sensitive alignment of the sheet stack in the lateral direction.
  • the object of the invention is to perform a lateral alignment of the sheet stack on the sheet feeder of rotary printing presses with little technical effort, in which a free lateral movement is possible with the least amount of force, so that the stops provided on both sides and aligning the sheet stack are sufficient for the movement thereof without that damage to the leading edge of the sheet by the guide rails is to be feared.
  • the object is achieved in accordance with the characteristics of claim 1. Due to the lateral mobility of the support plate and the guide rails, the sheet stack can be automatically aligned while the machine is running, without additional control means or larger forces being required for this. Damage to the sheets is also hereby avoided in a simple manner.
  • the sheet feeder 1 according to FIG. 1 is connected in a known manner via a feed table 2 to the printing unit 3 of a rotary printing press.
  • a feed table 2 to the printing unit 3 of a rotary printing press.
  • it is an offset printing unit with a printing cylinder 4 which receives the sheet via a feed drum 5, a rubber cylinder 6 and a plate cylinder 7, to which a dampening unit 8 and an inking unit 9 are assigned.
  • the sheet stack 10 in the sheet feeder 1 is normally on a pallet 27 and is received by a support plate 11 which is suspended from four chains 12. Once be unloaded from the stacking surface sheet, the support is - plate 11 so far raised automatically in that the stacking surface remains approximately the same height.
  • the device for removing the individual sheets and for transferring them to the feed table 2 is generally known and is therefore not shown in FIG. 1.
  • stops 13 are provided, which are fastened in their holders 14 in an adjustable height.
  • the holders are laterally adjustable on a crossbar 15, which in turn on the Soge put 16.17 is attached. It is thus possible to adjust the stops 13 to any paper format to be processed and to the height of the stack surface.
  • the device for automatically lifting the sheet stack 10 is known per se and acts directly on the chains 12, which in the exemplary embodiment shown are deflected towards the lifting device via chain wheels 18 which are arranged on cross members 19.
  • a new sheet stack 10 is inserted into the sheet feeder 1, this is seen in the transport direction of the individual sheets, is placed in the front region of the sheet stack on vertically arranged guide rails 20 and is aligned at the same time.
  • the support plate 11 can perform a lateral movement. Due to the fact that the new sheet stack 10 rests with its front region on the guide rails 20, this lateral movement is at least strongly braked when the guide rails are immovably mounted.
  • each guide rail 20 is fastened to the three strips 21, so that the entire frame system can be moved laterally together on cross members 25 via bearings 22, 23 and ball bushings 24.
  • This free mobility is limited laterally by weak stop springs 26.
  • weak stop springs 26 These in turn are arranged on the cross members 25, which are supported on both sides in the side frames 16, 17. The stop springs 26 move the frame system into a central position when no stack is inserted and limit the lateral movement of the frame system by forming a block.
  • the vertical guide rails 20 can thus follow this movement with a lateral movement of the sheet stack 10 together with the support plate 11 without there being a detectable braking effect.
  • the stops 13 are thus in a position to align the entire sheet stack 10, even if it is crooked, for example, the smallest forces being sufficient for this.
  • a threaded spindle 28 which is provided with a catch 29. If the catch 29 is inserted into a recess in the threaded spindle 28, the threaded spindle can be rotated via the handwheel 30 so that the vertical guide rails 20 and with them the sheet stack 10 move laterally. If the catch 29 is then raised, the threaded spindle 28 can follow the lateral movement of the sheet stack 10 freely in its storage via ball bushings 31.
  • the support plate 11 is provided with a guide strip 32, which bears on the outer guide rail 20 with an offset 33.
  • the end of the bend 33 is surrounded by a guide rail 34 which is fastened to each outer guide rail 20 via bolts 35 (FIG. 1).
  • the guide bar 32 is resiliently attached to the support plate 11 so that the stack can be adjusted in the running direction of the sheets when moving up and down.
  • FIG. 5 differs from the one described above in that the frame system with the guide rails 20 and the strips 21 is not supported by ball bushings 24 on cross members 25, but also on the outer guide rails 20 by leaf springs 36 via tabs 37 are attached such that the tabs 37 engage at the upper end of the vertically arranged leaf springs 36.
  • leaf springs 36 At the lower end of the leaf springs 36, pillow blocks 38 are provided, which are in the side frames 16, 17 fixed rails 39 are arranged.
  • the leaf springs 36 permit lateral movement of the frame system with the guide rails 20 in that they are arranged at right angles to the frame system. The width of the leaf springs thus prevents movement perpendicular to the guide rails 20.
  • the movement to the left is shown in dash-dotted lines at the top right of the leaf spring.
  • the lateral movement of the guide rails 20 takes place parallel to both sides.
  • the leaf springs 3 6 automatically align the frame system with the guide rails 20 in a central position.
  • This embodiment is particularly cost-effective and has the same advantages as described above, with manual adjustment via handwheel 30 also being possible.
  • the adjusting force to be exerted by the stops 13 in this embodiment is also very low, so that a sheet stack with odd side edges is safely aligned and can be fed exactly to the system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Pile Receivers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP84106029A 1983-06-16 1984-05-26 Margeur pour machines d'impression rotatives Expired EP0129104B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321724A DE3321724C1 (de) 1983-06-16 1983-06-16 Bogenanleger an Rotationsdruckmaschinen
DE3321724 1983-06-16

Publications (3)

Publication Number Publication Date
EP0129104A2 true EP0129104A2 (fr) 1984-12-27
EP0129104A3 EP0129104A3 (en) 1986-12-30
EP0129104B1 EP0129104B1 (fr) 1988-08-10

Family

ID=6201623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106029A Expired EP0129104B1 (fr) 1983-06-16 1984-05-26 Margeur pour machines d'impression rotatives

Country Status (7)

Country Link
US (1) US4697804A (fr)
EP (1) EP0129104B1 (fr)
JP (1) JPS6023228A (fr)
CA (1) CA1211764A (fr)
DE (1) DE3321724C1 (fr)
DK (1) DK151328C (fr)
ES (1) ES8502400A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190363A (en) * 1986-04-29 1987-11-18 Wofenet Limited Semi automatic paper cassette

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01110433A (ja) * 1987-10-23 1989-04-27 Isamu Miura 自動印刷機用フイーダ
DE4100901C2 (de) * 1991-01-15 1994-10-13 Heidelberger Druckmasch Ag Bogenanleger für Rotationsdruckmaschinen
DE4129132C1 (fr) * 1991-09-02 1992-12-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
JPH0637238U (ja) * 1992-10-26 1994-05-17 株式会社小森コーポレーション 枚葉印刷機の給紙紙積装置
DE19633384B4 (de) * 1995-10-30 2007-11-22 Pentax Technologies Corp., Broomfield Stapelsystem für Endlospapier
DE10161891B4 (de) * 2001-01-19 2017-09-14 Heidelberger Druckmaschinen Ag Verfahren zur Regelung bogenförmiges Material führender Elemente
DE10310695A1 (de) * 2003-03-12 2004-09-23 Koenig & Bauer Ag Bogenanleger
DE10310696A1 (de) * 2003-03-12 2004-09-23 Koenig & Bauer Ag Bogenanleger
US7370860B2 (en) * 2004-09-29 2008-05-13 Lexmark International, Inc. Automatic edge guide assembly using springs and tapered surfaces
WO2007109644A2 (fr) * 2006-03-20 2007-09-27 Thiele Technologies, Inc. Ensemble de guide latéral pourvu de guides latéraux repositionnables verticalement à utiliser avec des machines d'alimentation en feuilles à frottement
WO2007109642A2 (fr) * 2006-03-20 2007-09-27 Thiele Technologies, Inc. Assemblage de guidage lateral ajustable lateralement pour utilisation avec des machines de distribution de feuilles par friction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808019A (en) * 1903-12-04 1905-12-19 Cross Paper Feeder Co Paper-feeding machine.
US1424916A (en) * 1916-10-13 1922-08-08 William M Kelly Paper-feeding mechanism
US1948001A (en) * 1931-11-18 1934-02-20 Dexter Folder Co Sheet feeder
GB766221A (en) * 1954-03-12 1957-01-16 Roland Offsetmaschf Improvements in or relating to sheet feeders, particularly for printing machines
DE2200755C3 (de) * 1972-01-07 1974-11-07 Mabeg Maschinenbau Gmbh Nachf. Hense & Pleines Gmbh & Co, 6050 Offenbach Vorrichtung zum selbsttätigen Ausrichten eines Bogenstapels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190363A (en) * 1986-04-29 1987-11-18 Wofenet Limited Semi automatic paper cassette

Also Published As

Publication number Publication date
JPS6365569B2 (fr) 1988-12-16
ES532339A0 (es) 1985-01-16
US4697804A (en) 1987-10-06
EP0129104B1 (fr) 1988-08-10
DK258984A (da) 1984-12-17
DE3321724C1 (de) 1984-03-29
CA1211764A (fr) 1986-09-23
ES8502400A1 (es) 1985-01-16
DK151328B (da) 1987-11-23
JPS6023228A (ja) 1985-02-05
EP0129104A3 (en) 1986-12-30
DK258984D0 (da) 1984-05-25
DK151328C (da) 1988-07-18

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