EP0178399B1 - Method of registering and feeding sheets to printing machines - Google Patents

Method of registering and feeding sheets to printing machines Download PDF

Info

Publication number
EP0178399B1
EP0178399B1 EP85109428A EP85109428A EP0178399B1 EP 0178399 B1 EP0178399 B1 EP 0178399B1 EP 85109428 A EP85109428 A EP 85109428A EP 85109428 A EP85109428 A EP 85109428A EP 0178399 B1 EP0178399 B1 EP 0178399B1
Authority
EP
European Patent Office
Prior art keywords
sheets
lays
sheet
stops
control
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
Application number
EP85109428A
Other languages
German (de)
French (fr)
Other versions
EP0178399A3 (en
EP0178399A2 (en
Inventor
Helmut Emrich
Jürgen Wenzel
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 AT85109428T priority Critical patent/ATE44373T1/en
Publication of EP0178399A2 publication Critical patent/EP0178399A2/en
Publication of EP0178399A3 publication Critical patent/EP0178399A3/en
Application granted granted Critical
Publication of EP0178399B1 publication Critical patent/EP0178399B1/en
Expired 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
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/105—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using suction means

Definitions

  • the invention relates to a device for aligning and feeding sheets to printing presses, in which the sheets from a stack of feeders are occasionally fed to the front and side marks arranged in the system table of the printing press by suitable conveying means, and in which the sheets in the sheet running direction are arranged below - Movable suction cups (9) and transversely to the sheet running direction are acted upon by transversely movable side marks.
  • a device of this type is known from GB-PS 564322 and FR-A 799321. In this device, no measures are provided to correct the displacements of the sheet which occur during side alignment of the sheet.
  • EP-A1 0005863 shows a side alignment device as is to be used, for example, in the device of the generic type. This side alignment occurs after the alignment of the sheets on the front marks and leads to displacements of the sheet, which leads to register differences.
  • the invention is based on the object of improving the register of a sheet-fed printing machine and in particular of correcting displacements of the sheet already aligned with the front marks by means of side alignment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

A method and apparatus for aligning and feeding sheets for printing presses having a conveyor for supplying the sheets individually from a feed stack to the front and side lays in a feed table of the press. The method includes the steps of causing the sheets to strike the front lays, drawing the sheets against a side abutment of the side lay, engaging the sheets from below utilizing a vacuum device and then again pressing the sheets against the front lays. The apparatus includes a vacuum device and front and side lays. The vacuum device includes suction arms disposed below the sheets and ahead of the front lays with respect to the direction of the sheet movement. The front lays are movable reciprocably in the direction of the sheet movement while the side lays are movable transversely to the direction of the sheet movement. The apparatus also includes: a first cam for pivoting the suction arms, a second cam for reciprocating the side lay, and a suction disc for controlling the negative pressure applied to the suction arms, all of which are secured to a single shaft and adjusted and laid out in an angular position to one another so that the sheet, after having been drawn laterally against the side lays, is again engaged by the suction arms and moved into a final position against the front lays.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Ausrichten und Zuführen von Bogen an Druckmaschinen, bei denen die Bogen von einem Anlegerstapel vereinzelt den im Anlagetisch der Druckmaschine angeordneten Vorder- und Seitenmarken durch geeignete Fördermittel zugeführt werden und bei der die Bogen in Bogenlaufrichtung durch unterhalb angeordnete hin- und herbewegbare Sauger(9) und querzur Bogenlaufrichtung durch quer bewegbare Seitenmarken beaufschlagt werden.The invention relates to a device for aligning and feeding sheets to printing presses, in which the sheets from a stack of feeders are occasionally fed to the front and side marks arranged in the system table of the printing press by suitable conveying means, and in which the sheets in the sheet running direction are arranged below - Movable suction cups (9) and transversely to the sheet running direction are acted upon by transversely movable side marks.

Eine Vorrichtung dieser Gattung ist durch GB-PS 564322 und die FR-A 799321 bekannt. Bei dieser Vorrichtung sind keine Massnahmen vorgesehen, um die bei Seitenausrichten des Bogens entstehenden Verschiebungen des Bogens wieder zu korrigieren.A device of this type is known from GB-PS 564322 and FR-A 799321. In this device, no measures are provided to correct the displacements of the sheet which occur during side alignment of the sheet.

Die EP-A1 0005863 zeigt eine Seitenausrichtvorrichtung, wie sie beispielsweise bei der gattungsgemässen Vorrichtung angewendet werden soll. Diese Seitenausrichtung erfolgt nach der Ausrichtung der Bogen an den Vordermarken und führt zu Verschiebungen des Bogens, was zu Passerdifferenzen führt.EP-A1 0005863 shows a side alignment device as is to be used, for example, in the device of the generic type. This side alignment occurs after the alignment of the sheets on the front marks and leads to displacements of the sheet, which leads to register differences.

Der Erfindung liegt die Aufgabe zugrunde, das Anlagepasser einer Bogendruckmaschine zu verbessern und insbesondere Verschiebungen des bereits an den Vordermarken ausgerichteten Bogens durch das Seitenausrichten wieder zu korrigieren.The invention is based on the object of improving the register of a sheet-fed printing machine and in particular of correcting displacements of the sheet already aligned with the front marks by means of side alignment.

Diese Aufgabe wird durch eine Vorrichtung zur Ausrichtung des Bogens gelöst, wie sie im Kennzeichen des Anspruchs 1 angegeben ist.This object is achieved by a device for aligning the sheet, as specified in the characterizing part of claim 1.

Ein Ausführungsbeispiel der erfindungsgemässen Vorrichtung wird anhand nachfolgender schematischer Zeichnung noch weiter beschrieben. Es zeigt:

  • Fig. 1 eine Seitenansicht einer Ausrichtvorrichtung, teilweise im Schnitt und
  • Fig. 2 einen Teilausschnitt gemäss der Linie 11-11 in Fig. 1.
An exemplary embodiment of the device according to the invention will be described further with reference to the following schematic drawing. It shows:
  • Fig. 1 is a side view of an alignment device, partly in section and
  • FIG. 2 shows a partial section along the line 11-11 in FIG. 1.

Die in einer Druckmaschine (nicht dargestellt) zu bedruckenden Bogen 1 werden auf einem Anlagetisch 2 einer Ausrichtstation 3 zugeführt und dort durch Vordermarken 4 und Seitenmarken 5 an der Bogenvorder- und -seitenkante ausgerichtet. Die Vordermarken 4 sind auf einer Welle 6 befestigt, die über eine Steuerkurve 7 und einen Rollenhebel 8 hin- und herschwenkbar ist. Damit kann die Vordermarke 4 in ihre die Bogen ausrichtende Position und anschliessend aus der Bogenbahn herausgeschwenkt werden. In Bogenlaufrichtung vor den Vordermarken 4 sind Sauger 9 mit den Saugflächen 10 in einer Ebene zu der Oberfläche des Anlagetisches 2 in Schlitzen 11 des Anlagetisches 2 angeordnet. Die Sauger 9 sind auf einer Welle 12 befestigt, die über eine Steuerkurve 13 und Rollenhebel 14 hin- und herverschwenkbar ist. Koaxial mit der Steuerkurve 13 auf einer Welle 25 ist eine Steuerscheibe 15 mit entsprechenden Steuerschlitzen 16 vorgesehen. Bei Verdrehen der Steuerscheibe 15 werden die Kanäle 17, 18 eines Steuergehäuses 19 über die Steuerschlitze 16 und damit (s.a. strichpunktierte Linie) die Sauger 9 mit einer nicht dargestellten Unterdruckquelle verbunden. Winkelversetzt ist ein weiterer Steuerschlitz 26 vorgesehen. Auf der Welle 25 ist ausserdem noch eine Steuerkurve 20 befestigt (siehe Fig. 2), die über eine an der Seitenmarke 5 befestigte Rolle 21 die Seitenmarke 5 quer zur Bogenlaufrichtung bewegt und den angesaugten Bogen 1 gegen einen Ausrichtanschlag 22 fördert. Die Bewegung der Sauger 9 beträgt nur 1 bis 2 mm. Da die Steuerkurven für die Saugerbewegung, den Saugbeginn und das Saugende sowie für die Bewegung der Seitenmarke 5 insgesamt auf der einen Welle 12 befestigt sind, kann die gewünschte Folgeschaltung ab Eintreffen der Bogen an den Vordermarken leicht eingestellt werden, nämlich;

  • a) der Steuerschlitz verbindet die Kanäle 17, 18, es entsteht ein Unterdruck an den Saugflächen 10, der Bogen wird abgebremst,
  • b) der Bogen richtet sich an den Vordermarken 4 aus,
  • c) die Seitenmarke 5 setzt sich in Bewegung, erfasst den Bogen und richtet ihn seitlich an dem Anschlag 22 aus.
  • d) der Saugschlitz 16 verbindet die Kanäle 17 und 18, es entsteht an den Saugflächen 10 ein Unterdruck,
  • e) die Steuerkurve 13 betätigt den Rollenhebel 14 und setzt den Sauger 9 in Bewegung; der zuvor durch die Seitenausrichtung verschobene Bogen wird somit wieder an die Vordermarken gedrückt.
The sheets 1 to be printed in a printing press (not shown) are fed to an alignment station 3 on a system table 2 and are aligned there by front marks 4 and side marks 5 on the front and side edges of the sheet. The front marks 4 are fastened on a shaft 6 which can be pivoted back and forth via a control cam 7 and a roller lever 8. The front mark 4 can thus be swiveled into its arch-aligning position and then out of the arch path. In the sheet running direction in front of the front marks 4, suction devices 9 with the suction surfaces 10 are arranged in a plane to the surface of the feed table 2 in slots 11 of the feed table 2. The suction cups 9 are fastened on a shaft 12 which can be pivoted back and forth via a control cam 13 and roller lever 14. A control disk 15 with corresponding control slots 16 is provided coaxially with the control cam 13 on a shaft 25. When the control disk 15 is rotated, the channels 17, 18 of a control housing 19 are connected via the control slots 16 and thus (see also dash-dotted line) the suction cups 9 to a vacuum source, not shown. A further control slot 26 is provided at an angle. A control cam 20 is also attached to the shaft 25 (see FIG. 2), which moves the side mark 5 transversely to the sheet running direction via a roller 21 attached to the side mark 5 and conveys the suctioned sheet 1 against an alignment stop 22. The movement of the suction cups 9 is only 1 to 2 mm. Since the control cams for the suction movement, the start of suction and the end of suction as well as for the movement of the side mark 5 as a whole are fastened on the one shaft 12, the desired sequential switching can be easily set from the arrival of the sheets on the front marks, namely;
  • a) the control slot connects the channels 17, 18, there is a negative pressure on the suction surfaces 10, the arc is braked,
  • b) the sheet is aligned with the front marks 4,
  • c) the side mark 5 starts to move, detects the sheet and aligns it laterally with the stop 22.
  • d) the suction slot 16 connects the channels 17 and 18, a negative pressure is created on the suction surfaces 10,
  • e) the control cam 13 actuates the roller lever 14 and sets the suction device 9 in motion; the sheet previously shifted by the page orientation is thus pressed against the front marks again.

Claims (5)

1. Apparatus for registering and feeding sheets in printing presses, in which the sheets (1) are fed individually from a supply pile by suitable feed means to front (4) and side (5), stops arranged in the feed table (2) of the printing press and in which the sheets are influenced in the sheet running direction by to and fro movable suckers (9) arranged below and transversely to the sheet running direction by transversely movable side stops, characterised in that a control cam (13) is provided for oscillating the sucker (9), a control cam (20) for to and fro movement o; the side stops (5) and a control disc (15) for the suction air feed to the suckers (9) and, in each case, are so set on a shaft (25) and adjusted in an angular position relative to one another that, after side pulling of the sheets has taken place, they are sucked by the suckers and moved anew against the front stops (4).
2. Apparatus acording to Claim 1, characterised in that the control disc (15) has two control slots (16, 26).
3. Apparatus according to Claim 1, characterised in that at least two suckers (9) are arranged tangentially to the sheet running direction in the direction of the front stops (4) and at right angles to the side stops (5) below the feed table (2).
4. Apparatus according to one of Claims 1 to 3, characterised in that the stroke of the sucker (9) at the surface of the feed table (2) amounts to ca. 1 to 2 mm.
5. Apparatus according to at least one of the preceding claims 1 to 4, characterised in that the sucker (9) can be switched on for a short time at the point of time of the sheet run-in against the front stops (4) by means of two control slots (26) on the control disc.
EP85109428A 1984-10-18 1985-07-23 Method of registering and feeding sheets to printing machines Expired EP0178399B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85109428T ATE44373T1 (en) 1984-10-18 1985-07-23 METHOD OF ALIGNING AND FEEDING PRINT SHEETS TO PRINTING PRESSES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843438134 DE3438134A1 (en) 1984-10-18 1984-10-18 METHOD FOR ALIGNING AND FEEDING PRINT SHEETS ON PRINTING MACHINES
DE3438134 1984-10-18

Publications (3)

Publication Number Publication Date
EP0178399A2 EP0178399A2 (en) 1986-04-23
EP0178399A3 EP0178399A3 (en) 1988-01-13
EP0178399B1 true EP0178399B1 (en) 1989-07-05

Family

ID=6248156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109428A Expired EP0178399B1 (en) 1984-10-18 1985-07-23 Method of registering and feeding sheets to printing machines

Country Status (6)

Country Link
US (1) US4648589A (en)
EP (1) EP0178399B1 (en)
JP (1) JPS61101355A (en)
AT (1) ATE44373T1 (en)
BR (1) BR8504303A (en)
DE (1) DE3438134A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8715014D0 (en) * 1987-06-26 1987-08-05 Xerox Corp Sheet registration apparatus
DE4241795C2 (en) * 1992-12-11 1996-05-23 Roland Man Druckmasch Device for precise fitting
DE4445638A1 (en) * 1994-12-21 1996-06-27 Otto Kunzi Feeding device for sheet metal printing machines
US6305285B1 (en) 1996-09-25 2001-10-23 Crabtree Of Gateshead Ltd. Sheet settling system
JPH10129886A (en) * 1996-10-15 1998-05-19 Heidelberger Druckmas Ag Sheet paper inserting plate in automatic paper feeder of sheet paper processing machine
DE10015979B4 (en) * 2000-03-30 2006-09-07 Koenig & Bauer Ag Device for aligning sheets fed to a feed table via a belt table
DE10315192A1 (en) * 2002-04-25 2003-11-06 Heidelberger Druckmasch Ag Lateral alignment device for sheets in sheet handing machine such as printing machine, has lateral pull-lays which are activated to pull sheet left or right depending on alignment position
DE102005039960A1 (en) * 2005-08-24 2007-03-08 Koenig & Bauer Ag Device for lateral alignment
US10329109B1 (en) * 2018-04-03 2019-06-25 Xerox Corporation Vacuum shuttle with stitch and roll capabilities

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR799321A (en) * 1934-12-29 1936-06-11 Roland Offsetmaschf Margin sheet registration device for printing machines
GB564322A (en) * 1943-03-19 1944-09-22 Headley Townsend Backhouse Improvements in or relating to mechanism for registering sheets being fed to printing presses and other machines
DE2046602B2 (en) * 1970-09-22 1973-09-06 Koenig & Bauer AG, ,700 Würzburg SHEET FEEDING ON PRINTING MACHINES
DE2134834B1 (en) * 1971-07-13 1972-09-14 Heidelberger Druckmaschinen Ag Sheet conveyor
DE2604379C2 (en) * 1976-02-05 1982-02-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Method for aligning sheets
US4184673A (en) * 1976-04-19 1980-01-22 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Method of and an apparatus for aligning sheets advancing in an overlapping array to a printing machine
DD132652B1 (en) * 1977-09-14 1980-12-10 Guenter Weisbach METHOD AND DEVICE FOR ARRANGING ARC
DE2824932C3 (en) * 1978-06-07 1984-03-29 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Side pulling device for sheets to be aligned on a feed table supplied sheets of a sheet processing machine
DD226837A1 (en) * 1984-08-15 1985-09-04 Polygraph Leipzig METHOD AND DEVICE FOR SIDE-ALIGNING ARC

Also Published As

Publication number Publication date
DE3438134A1 (en) 1986-04-24
US4648589A (en) 1987-03-10
JPH0255344B2 (en) 1990-11-27
EP0178399A3 (en) 1988-01-13
DE3438134C2 (en) 1988-10-13
EP0178399A2 (en) 1986-04-23
ATE44373T1 (en) 1989-07-15
BR8504303A (en) 1986-07-01
JPS61101355A (en) 1986-05-20

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