DD280296A1 - Device for aligning bow to the front edge - Google Patents

Device for aligning bow to the front edge Download PDF

Info

Publication number
DD280296A1
DD280296A1 DD32619189A DD32619189A DD280296A1 DD 280296 A1 DD280296 A1 DD 280296A1 DD 32619189 A DD32619189 A DD 32619189A DD 32619189 A DD32619189 A DD 32619189A DD 280296 A1 DD280296 A1 DD 280296A1
Authority
DD
German Democratic Republic
Prior art keywords
sheet
marks
alignment
fixed
stops
Prior art date
Application number
DD32619189A
Other languages
German (de)
Inventor
Guenter Weisbach
Dietmar Mueller
Victor Hefftler
Original Assignee
Polygraph Leipzig
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 Polygraph Leipzig filed Critical Polygraph Leipzig
Priority to DD32619189A priority Critical patent/DD280296A1/en
Publication of DD280296A1 publication Critical patent/DD280296A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines
    • B41F21/12Adjusting leading edges, e.g. front stops
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00Registering, e.g. orientating, articles; Devices therefor
    • B65H9/06Movable stops or gauges, e.g. rising and falling front stops

Abstract

The invention relates to a device for aligning sheets after the leading edge with staggered Bogenfoerderung from the sheet feeder to cover and leading brands existing Anlegmarken that correspond with a stop and are distributed fixed below the feed table and in the sheet web and pivotable over the entire sheet width. The object of the invention is a device in which the Anlegmarken decelerate the fed sheet and support and preferably two of the Anlegmarken are provided for alignment and readjustment. According to the invention, the object is achieved in that preferably two optionally selected front marks can be fixed by means of the stops in an alignment position and the other front marks with the help of the stops in an in the transport direction of the sheet before the fixed in Ausrichtposition front lays Anleglinie in an impact position and after impact of the bow in a behind the Anleglinie in a support position schwenkibar are executed.

Description

For this 2 pages drawings
Field of application of the invention
The invention relates to a device for aligning sheets after the front edge with 'taffeta ßogenförderung from the sheet feeder to make existing cover and front stamps placement marks, which correspond with a stop and are distributed fixed below the feed table and in the sheet web and pivotally over the entire sheet width.
Characteristic of the known state of the art
For aligning sheets on the feed table, cover marks existing from cover and front mark are known, which are arranged stationarily below the feed table and designed to be pivotable in the bows of the sheets.
The Anlegmarken are arranged so that either two Anlegmarken can be positioned directly to the Ausricht as alignment marks and the other Anlegmarken slightly after the Ausrichtlinie as support marks against the Durchstauchen or deflection of the aligned sheets.
A disadvantage of this arrangement is that the impact of the reaching for alignment sheet of only two alignment marks is recorded and thereby high local stresses occur, lead to deformation of the sheet leading edge, which ultimately leads to a poor Anlegpasser, the poor print quality conditions or a Increased performance of the printing press prevented.
It is also known (DE 1611367) that sheets are collected in the movement by Vorriohtemarken in the region of the leading edge and under ständ'ger delay pre-applied to the Anlegmarken. Again, not designed for registration alignment marks take a support function.
A disadvantage of this device, the high technical complexity and the fact that the pre-alignment and alignment on the Anler brands due to the cyclic linkage of this operation must be done within a machine cycle, that only a relatively small rotation angle for alignment with the Anlegmarken available stands. But this is especially at high speeds cause a bad Anpaßpasser, which requires a poor print quality and prevents an increase in performance of the printing press. In addition, a re-alignment of the bow by dk.
Marks not possible.
Object of the invention
The aim of the invention is a device for aligning sheets after the leading edge, which ensures a good print quality even with high performance with simple technical means.
Essence of the invention
It is an object of the invention to provide a device for aligning sheets after the leading edge, in which the distributed over the entire width of the sheet and oscillating about a common fixed pivot markers slow down the sheet fed by the sheet feeder and support and preferably two of the Anlegmarken Alignment and Nachuusrichtung the bow are provided.
According to the invention the object is achieved in a device according to the preamble of claim 1, dal?
preferably two arbitrarily selected front marker, fixed by means of the stops in an alignment position and the other leading brands with the help of the attacks in a direction of transport of the sheet in front of the fixed in alignment position leading marks Anleglinie in an impact position and after impact dos bow in a behind the Anleglinie are designed to pivot in a Stützpositiori.
The respective mounted in a control body stops are selectively influenced with an electromagnet or by a slidably mounted in the stop by means of a slider against a compression spring control rod. The actuator is adjustable.
The front marks arranged on the base body of the cover mark can be pivoted against the action of a compression spring.
embodiment
An embodiment of the invention will be explained in more detail below. In the drawings shows
1 shows the side view of an investment mark with the front mark in alignment position,
2: the application mark in another phase of sheet alignment,
3: the Anlegmarke with the front-end in impact position,
4: the Anlegmarke with the front mark in support position,
5: the front marks in alignment and impact position in d'.
6 shows a phase of the transition of the leading brands from the Prailposition in the support position,
Fig.7: the leading brands in alignment and support position in plan view.
In Figure 1, a Anlegmarke 1 is shown, which consists of a base body 2, fixed to the deck mark 3 and the front-end 4 is pivotally mounted via a pin 5 and a lever 6. The front brand 4 is supported against a compression spring 7 on the base body 2 and corresponds to a belonging to a control device 20 stop 8. The stopper 8 is provided with a bore 9 and a collar 10 and slidably mounted in a control body 11 so that the federal government 10 is operatively connected to a fixedly arranged in the actuating body 11 electromagnet 12. In the bore 9 of the stopper 8, a compression spring 13 is provided, which is supported against a slider 14 which slidably mounted in the hole 9 and whose path is limited by the collar 10. In the slider 14, a control rod 15 is slidably mounted, which is controllable by means not shown between a starting position 15.1 and an end position 15.2.
The actuating body 11 is fixedly disposed on the feed table 16 and can be adjusted in its position to Anlegmarke 1 by means not shown. On the feed table, a sheet 17 is shown, which is transported by a sheet feeder known per se in the sheet conveying direction 18.
The operation of the device is the following:
The feed marks 1 are controlled by means not shown from a lying below the level of the feed table 16 position in the path of the sheet 17 and with the front marks 4 against the arranged on the front of the feed table 16 stops 8.
Of the attacks 8 are preferably two in the sheet transport direction 18 so advanced by the electromagnet 12 is subjected to voltage and so the collar 10 of the stopper 8 comes to rest against the electromagnet 12, that corresponding to these stops 8 front marks 4 in an alignment 4.1 be fixed. (Figures 1, 2, 5). The fixed in the alignment position 4.1 front marks 4 form the Anleglinie 19.
The other front marks 4 swing pnt against the sheet transport direction 18 on the Anlegglinie 19 and are assigned by them stops 8 - the electromagnet 12 is de-energized and the control rod 15 is in the Ausgangsiage 15.1 -in a baffle position 4.2 fixed (Figure 3, 5) ,
The conveyed through the sheet feeder in the transport direction 18 bow 17 is transported against the distributed over the entire width of the sheet 17, located in impact position 4.2 front marks 4 and braked so without high local loads and consequent deformation of the sheet leading edge and at the same time directed ahead. Subsequently, the control rods 15 are controlled in their final position 15.2 and thus fixed in the baffle position 4.2 front marks 4 pivoted in the transport direction 18 on the Anleglinie 19 out against the compression spring 7 in a support position 4.3, wherein the path of the stop 8 by the to the electromagnet 12th , this is tension-free, incoming collar 10 is limited (Figure 4), while the path of the control rods 15 which correspond with the fixed in the alignment position 4.1 front marks 4 in Wirkverbmdung stops 8, is received on the slider 14 of the compression spring 13 ,
By pivoting the front marks 4 in the Stützpositiori 4.3 succeeded · the sheet 17 at a low speed to the fixed in the alignment position 4.1 front marks 4, is finely aligned and possibly by the directly in the transport direction 18 behind the Anleglinie 19 in support position 4.3 fixed Vordermaiken. 4 supported.
After aligning the sheet 17 to the leading edge of the feed marks 1 are pivoted to the position below the feed table 16. The front marks 4 execute a movement about the bolt 5 counter to the transport direction 18 and the front marks 4 fixed in the alignment position 4.1 move the adjacent sheet 1 " 7 counter to the transport direction 18 and thus effect a reorientation At the same time the control rods 15 are moved into the starting position 15.1 and thus enables the positioning of the front marks 4 for the alignment of the subsequent sheet.
The chosen embodiment makes it possible to allocate any registration mark 1 optionally an alignment function or an impact and support function. To achieve an impact function, it is only necessary to connect the electromagnet 12 of the respective Anlegmarke 1 associated adjusting device 20 with a voltage source and the adjusting member 11 to be arranged on the feed table 16 so that a respective operating conditions adapted Anleglinie 19 is formed, while achieving a Impact and support function of the solenoid 12 is de-energized - the control of the stop 8 is carried out by the control rod 15 and the actuator body 11 is to be arranged on the feed table 16, that the associated front mark 4 in the end position 15.2 of the control rod 15 through the stop 8 immediately behind the Anleglinie 19 is fixed in the support position 4.3.

Claims (4)

1. A device for aligning sheets after the leading edge with staffeiförmiger sheet funding from the sheet feeder to cover and front marks existing Anlegmarken that correspond to a stop and run fixed below the feed table and in the sheet web pivotally and distributed over the entire sheet width, characterized in that preferably two arbitrarily selected front marks (4) can be fixed in an alignment position (4.1) by means of the stops (8) and the other v'order marks (4) are moved by means of the stops (8) into a direction of conveyance (18) of the sheets (17 ) in an impact position (4.2) and after impact of the sheet (17) in a behind the Anieglinie (19) in a support position (4.3) pivotally executed in front of the aligned in the alignment position (4.1) front marks (4) Anleglinie (19) are.
2. Apparatus according to claim 1, characterized in that each in a control body (11) mounted stops (8) either with the aid of a in the actuating body (11) arranged electromagnet (12) or by an abutment (8) by means of a slider ( 14) against a compression spring (13) slidably mounted control rod (15) are influenced.
3. Apparatus according to claim 2, characterized in that the adjusting body (11) is designed to be adjustable.
4. Apparatus according to claim 1, characterized in that on the base body (2) of the deck mark (3) arranged front mark (4) against a compression spring (7) is designed to be pivotable.
DD32619189A 1989-03-02 1989-03-02 Device for aligning bow to the front edge DD280296A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DD32619189A DD280296A1 (en) 1989-03-02 1989-03-02 Device for aligning bow to the front edge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD32619189A DD280296A1 (en) 1989-03-02 1989-03-02 Device for aligning bow to the front edge
DE4004461A DE4004461C2 (en) 1989-03-02 1990-02-14 Device for aligning sheets to the leading edge

Publications (1)

Publication Number Publication Date
DD280296A1 true DD280296A1 (en) 1990-07-04

Family

ID=5607442

Family Applications (1)

Application Number Title Priority Date Filing Date
DD32619189A DD280296A1 (en) 1989-03-02 1989-03-02 Device for aligning bow to the front edge

Country Status (2)

Country Link
DD (1) DD280296A1 (en)
DE (1) DE4004461C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107080C1 (en) * 1991-03-06 1992-06-04 Man Miller Druckmaschinen Gmbh, 6222 Geisenheim, De
DE4134767A1 (en) * 1991-10-22 1993-04-29 Heidelberger Druckmasch Ag FRONT EDGE ALIGNMENT DEVICE
DE19546066C2 (en) * 1995-12-09 1999-08-05 Koenig & Bauer Ag Device for aligning front marks
DE19546067C2 (en) * 1995-12-09 1999-08-05 Koenig & Bauer Ag Device for aligning front marks
DE10218053A1 (en) * 2002-04-23 2003-11-13 Koenig & Bauer Ag Device for aligning sheets
DE102007051946A1 (en) * 2007-10-31 2009-05-07 Koenig & Bauer Aktiengesellschaft Front mark's stop surface fitting device for sheet fed printing press, has sensor units connected with memory unit passing stop surfaces after detecting front edge section by sensor units at distance in direction of front edge section
DE102010006718A1 (en) * 2010-02-02 2011-08-04 Heidelberger Druckmaschinen AG, 69115 Paper sheets aligning and feeding method for paper sheet rotation printing machine, involves adjusting forward edge stops around small path, where other two edge stops arranged at distance from each other remain in orientation position
DE102010054708A1 (en) 2010-02-02 2011-08-04 Heidelberger Druckmaschinen AG, 69115 Deckmark height adjustment device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611367B1 (en) * 1967-08-16 1971-09-09 Roland Offsetmaschf Device for aligning a sheet

Also Published As

Publication number Publication date
DE4004461A1 (en) 1990-09-06
DE4004461C2 (en) 1998-07-02

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