EP0601325B1 - Sheet support - Google Patents
Sheet support Download PDFInfo
- Publication number
- EP0601325B1 EP0601325B1 EP93117537A EP93117537A EP0601325B1 EP 0601325 B1 EP0601325 B1 EP 0601325B1 EP 93117537 A EP93117537 A EP 93117537A EP 93117537 A EP93117537 A EP 93117537A EP 0601325 B1 EP0601325 B1 EP 0601325B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- guide
- recess
- bridges
- support unit
- 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
Links
Images
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
- B65H11/00—Feed tables
Definitions
- the invention relates to a sheet support device for bridging a page mark recess, which extends transversely to the sheet conveying direction over the width of the feed table, depending on the format in a maximum and a minimum position, of a rotary printing press. It can be used when processing paper, cardboard or sheet metal.
- Such a bow support device is known from DE-AS 1 611 362 as a "scissor lattice table".
- corrugated, vertically high ridges and supporting the supplied sheet of spring strips are arranged as length-adjustable table surfaces within the side mark recess.
- a plurality of displaceable receiving elements are arranged in the gap area transversely to the sheet conveying direction.
- the receiving elements which act as leaf springs and are guided on rods, have leg regions and V-shaped or U-shaped connecting regions which are arranged in an upright position in the plane of the table surface. They are pre-tensioned and can be compressed when the side mark recess is reduced and they adjust themselves when the recess is enlarged.
- cover device In the recess of the feed table, spring-supported cover webs are arranged so that they can move vertically to the table surface. A sliding block acts on the cover webs from above and presses them into the recess against the spring force.
- the object of the invention is to eliminate the disadvantages known from the abovementioned prior art. This is solved by the features of the characterizing part of the main claim. Further training results from the subclaims.
- the solution according to the invention ensures reliable guidance of the printing material by the guide bridges lying parallel to the conveying direction, since no spring elements come into contact with the printing material. Dust and dirt can be removed and additional means for guiding the bend can be introduced into the recess, since the guide bridges can be quickly replaced with and without a spring element. Changes in size in the conveying direction are excluded, so that malfunctions when dirty cut or damaged edges of the substrate can be avoided.
- the spiral springs are pre-tensioned so that they can be compressed for setting to small substrate sizes (minimum distance) and automatically adjust themselves to the maximum distance for setting to larger formats.
- the guide bridges always remain parallel to the conveying direction and are always in the plane of the feed table.
- the sheet support device is formed in a recess 10, which is delimited by a feed table 6, a feed plate 5 and a side mark 1.
- a feed table 6 and feed plate 5 Parallel to the feed table 6 and feed plate 5, two spaced cross members 2 are arranged in a stationary manner below the cutout 10.
- a large number of guide bridges 4, spanning the distance between the contact plate 5 and the contact table 6, are arranged on the cross members 2, parallel to the sheet conveying direction 7 (at right angles to the cross members 2).
- Each guide bridge 4 is positively supported on the crossbeams 2 and forms a thrust joint 9 in this area.
- the surfaces of the guide bridges 4 lie at the same level with the surfaces of the feed table 6 and contact plate 5.
- an elastic spiral spring 3 for example a leaf spring, is arranged in an upright position, which is centered on the Side surface of the guide bridge 4 is fixed in position by connecting elements 8.
- the torsion spring 3 is supported with its legs on the side surface of the adjacent guide bridge 4.
- the length of the legs of the spiral spring 3 is shorter than the length of the guide bridge 4 in the compressed state (extended length) Printing material does not come into contact and the sheet is only supported by the guide bridges 4.
- the side mark 1 is adjustable transversely to the conveying direction 7 depending on the format on the feed table 6.
- the format is reduced, it is moved in the direction of the center of the feed table within the cutout 10, which reduces the distance between the guide bridges 4 and the bending springs 3 are compressed (minimum distance position).
- the side mark 1 is moved in the direction of the outside of the feed table 6.
- the elastic spiral springs 3 relax and the guide bridges 4 align themselves automatically within the recess 10. They are guided exactly over the thrust joints 9 formed with traverses 2 up to the maximum distance position.
- the exemplary embodiment described can be further developed by arranging elastic spiral springs 3 on both side surfaces of the guide bridge 4.
- Guide bridges 4 with spiral springs 3 and guide bridges 4 without spiral springs 3 alternate within the recess 10.
- a further embodiment is achieved in that spiral springs 3 are arranged on each guide bridge 4 on both sides.
- the adjacent spiral springs 3 are arranged at different levels or penetrate each other. The prerequisite is that the upper edges 11 of all spiral springs 3 remain below the level of the guide bridges 4.
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Manual Feeding Of Sheets (AREA)
- Registering Or Overturning Sheets (AREA)
- Vehicle Body Suspensions (AREA)
- Massaging Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Bogenstützeinrichtung zur Überbrückung einer Seitenmarkenaussparung, die sich quer zur Bogenförderrichtung über die Breite des Anlegetisches, je nach Format in einer maximalen und einer minimalen Stellung, einer Rotationsdruckmaschine erstreckt. Sie ist einsetzbar bei der Verarbeitung von Papier, Karton oder Blech.The invention relates to a sheet support device for bridging a page mark recess, which extends transversely to the sheet conveying direction over the width of the feed table, depending on the format in a maximum and a minimum position, of a rotary printing press. It can be used when processing paper, cardboard or sheet metal.
Eine solche Bogenstützeinrichtung ist aus der DE-AS 1 611 362 als "Scherengittertisch" bekannt. In Bogenförderrichtung sind hierbei gewellte, senkrecht hochstegig stehende und den zugeführten Bogen abstützende Federbänder als längenveränderbare Tischflächen innerhalb der Seitenmarkenaussparung angeordnet.Such a bow support device is known from DE-AS 1 611 362 as a "scissor lattice table". In the sheet conveying direction, corrugated, vertically high ridges and supporting the supplied sheet of spring strips are arranged as length-adjustable table surfaces within the side mark recess.
Eine weitere Einrichtung ist aus der EP 0 268 693 B1 bekannt. Im Spaltbereich sind quer zur Bogenförderrichtung eine Mehrzahl verschiebbarer Aufnahmeelemente angeordnet. Die als Blattfeder wirkenden, auf Stangen geführte Aufnahmeelemente weisen Schenkelbereiche und V- oder U-förmige Verbindungsbereiche auf, die hochkant in der Ebene der Tischoberfläche liegend angeordnet sind. Sie stehen unter Vorspannung und lassen sich bei Verkleinerung der Seitenmarkenaussparung zusammendrücken und bei Vergrößerung der Aussparung stellen sie sich selbsttätig nach.Another device is known from EP 0 268 693 B1. A plurality of displaceable receiving elements are arranged in the gap area transversely to the sheet conveying direction. The receiving elements, which act as leaf springs and are guided on rods, have leg regions and V-shaped or U-shaped connecting regions which are arranged in an upright position in the plane of the table surface. They are pre-tensioned and can be compressed when the side mark recess is reduced and they adjust themselves when the recess is enlarged.
Nachteilig ist es dabei, daß mit der Längenänderung innerhalb des Spaltes (Einstellung auf Bogenformat) stets eine Großenänderung (Längenänderung in der Breite) der Federbänder in Förderrichtung einhergeht. Dies führt zu "Störstellen" hinsichtlich des Bogentransportes, da insbesondere bei dünnem Bedruckstoff oder hohen Maschinengeschwindigkeiten keine sichere Abstützung des Bogens gewährleistet wird. Weiterhin ist es von Nachteil, daß bedingt durch die Geometrie der Federkonstruktion bei unsauber geschnittenen oder deformierten Bedruckstoffkanten Störungen im Bogenlauf entstehen, da z.B. die Bogenkante sich mit den Federbändern verhakt.It is disadvantageous that the change in length within the gap (setting to sheet format) is always accompanied by a change in size (change in length in width) of the spring bands in the conveying direction. This leads to "defects" with regard to sheet transport, especially when the substrate is thin or high Machine speeds no safe support of the arch is guaranteed. Furthermore, it is disadvantageous that, due to the geometry of the spring construction, in the case of improperly cut or deformed printing material edges, faults occur in the sheet run, since, for example, the sheet edge gets caught in the spring bands.
Diese Nachteile versucht nun die Abdeckvorrichtung nach der DE 4 105 966 C1 zu beseitigen. In der Aussparung des Anlegetisches sind gegen Federn abgestützte Abdeckstege senkrecht beweglich zur Tischfläche angeordnet. Ein Gleitschuh wirkt von oben auf die Abdeckstege ein und drückt diese gegen die Federkraft in die Aussparung ein.The cover device according to DE 4 105 966 C1 now tries to eliminate these disadvantages. In the recess of the feed table, spring-supported cover webs are arranged so that they can move vertically to the table surface. A sliding block acts on the cover webs from above and presses them into the recess against the spring force.
Diese Lösung verbessert zwar die Bogenführung, indem die Abdeckstege keine Größenänderung bewirken, ist jedoch sehr aufwendig. Staub und Schmutz kann nicht abgeführt werden und kann sich somit zwischen den Abdeckstegen ansammeln. Da diese Abdeckstege die Seitenmarkenaussparung völlig abdecken, können in diesem Bereich keine zusätzlichen Mittel zur Bogenführung oder Bogenausrichtung (z.B. Pneumatikeinrichtung) an den Bogen geführt werden.Although this solution improves the sheet guidance in that the cover webs do not change size, it is very complex. Dust and dirt cannot be removed and can therefore collect between the cover bars. Since these cover webs completely cover the side mark recess, no additional means for guiding or aligning the sheet (e.g. pneumatic device) can be guided to the sheet in this area.
Aus der JP-A-03 096 351 ist eine Bogenführungseinrichtung mit Führungsplatten bekannt, die untereinander mit verschweißten Federstahlelementen verbunden sind. Die Führungsplatten sind daher einzeln nicht austauschbar.From JP-A-03 096 351 a sheet guiding device with guide plates is known which are connected to one another with welded spring steel elements. The guide plates are therefore not individually interchangeable.
Aufgabe der Erfindung ist es, die aus oben genanntem Stand der Technik bekannten Nachteile zu beseitigen. Gelöst wird das durch die Merkmale des kennzeichnenden Teiles des Hauptanspruches. Weiterbildungen ergeben sich aus den Unteransprüchen.The object of the invention is to eliminate the disadvantages known from the abovementioned prior art. This is solved by the features of the characterizing part of the main claim. Further training results from the subclaims.
Die erfindungsgemäße Lösung gewährleistet durch die parallel der Förderrichtung liegenden Führungsbrücken eine sichere Führung des Bedruckstoffes, da keine Federelemente mit dem Bedruckstoff in Kontakt kommen. Staub und Schmutz können abgeführt werden und zusätzliche Mittel zur Bogenführung können in die Aussparung eingebracht werden, da die Führungsbrücken mit und ohne Federelement schnell ausgewechselt werden können. Größenveränderungen in Förderrichtung sind ausgeschlossen, so daß Störungen bei unsauber geschnittenen oder beschädigten Bedruckstoffkanten vermieden werden. Die Biegefedern stehen unter Vorspannung, so daß sie zur Einstellung auf kleine Bedruckstofformate (minimale Distanz) zusammendrückbar sind und zur Einstellung auf größere Formate sich selbsttätig bis zur maximalen Distanz nachstellen. Die Führungsbrücken bleiben dabei immer parallel zur Förderrichtung und liegen stets in der Ebene des Anlegetisches.The solution according to the invention ensures reliable guidance of the printing material by the guide bridges lying parallel to the conveying direction, since no spring elements come into contact with the printing material. Dust and dirt can be removed and additional means for guiding the bend can be introduced into the recess, since the guide bridges can be quickly replaced with and without a spring element. Changes in size in the conveying direction are excluded, so that malfunctions when dirty cut or damaged edges of the substrate can be avoided. The spiral springs are pre-tensioned so that they can be compressed for setting to small substrate sizes (minimum distance) and automatically adjust themselves to the maximum distance for setting to larger formats. The guide bridges always remain parallel to the conveying direction and are always in the plane of the feed table.
Die Erfindung wird an einem Ausführungsbeispiel näher erläutert. Dabei zeigt:
- Fig. 1
- eine schematische Draufsicht der Bogenstützeinrichtung in maximaler Distanzstellung,
- Fig. 2
- eine schematische Draufsicht nach Fig. 1 in minimaler Distanzstellung,
- Fig. 3
- eine Führungsbrücke in Seitenansicht,
- Fig. 4
- eine Draufsicht auf eine Führungsbrücke mit elastischer Biegefeder.
- Fig. 1
- 2 shows a schematic top view of the arch support device in the maximum distance position,
- Fig. 2
- 2 shows a schematic top view according to FIG. 1 in a minimal distance position,
- Fig. 3
- a guide bridge in side view,
- Fig. 4
- a plan view of a guide bridge with elastic spiral spring.
In einer Aussparung 10, die von einem Anlegetisch 6, einem Anlegeblech 5 und einer Seitenmarke 1 begrenzt ist, ist die Bogenstützeinrichtung ausgebildet. Parallel zu Anlegetisch 6 und Anlegeblech 5 sind zwei beabstandete Traversen 2 unterhalb der Aussparung 10 ortsfest angeordnet. Auf den Traversen 2 sind eine Vielzahl von Führungsbrücken 4, den Abstand zwischen Anlegeblech 5 und Anlegetisch 6 überspannend, parallel zur Bogenförderrichtung 7 (rechtwinklig zu den Traversen 2) nebeneinander angeordnet. Jede Führungsbrücke 4 ist auf den Traversen 2 formschlüssig abgestutzt und bildet in diesem Bereich jeweils ein Schubgelenk 9. Die Oberflächen der Führungsbrücken 4 liegen mit den Oberflächen von Anlegetisch 6 und Anlageblech 5 auf gleichem Niveau. An einer Seitenfläche jeder Führungsbrücke 4 ist eine elastische Biegefeder 3, z.B. eine Blattfeder, hochkant stehend angeordnet, die mittig an der Seitenfläche der Führungsbrücke 4 durch Verbindungselemente 8 lagefixiert ist. Die Biegefeder 3 stützt sich mit ihren Schenkeln an der Seitenfläche der benachbarten Führungsbrücke 4 ab. Die Länge der Schenkel der Biegefeder 3 ist dabei im zusammengedrückten Zustand (gestreckte Länge) kürzer als die Länge der Führungsbrücke 4. Eine Oberkante 11 der elastischen Biegefeder 3 liegt unter dem Niveau der Führungsbrücke 4, so daß die Biegefeder 3 mit dem in Förderrichtung 7 transportierten Bedruckstoff nicht in Berührung kommt und der Bogen nur von den Führungsbrücken 4 gestützt wird.The sheet support device is formed in a
Die Seitenmarke 1 ist quer zur Förderrichtung 7 je nach Format am Anlegetisch 6 verstellbar. Bei Formatverkleinerung wird sie in Richtung Mitte des Anlegetisches innerhalb der Aussparung 10 bewegt, was die Distanz zwischen den Führungsbrücken 4 verringert und die Biegefedern 3 zusammengedrückt werden (minimale Distanzstellung). Bei Formatvergrößerung wird die Seitenmarke 1 in Richtung der Außenseite des Anlegetisches 6 bewegt. Dadurch entspannen sich die elastischen Biegefedern 3 und die Führungsbrücken 4 richten sich selbsttätig innerhalb der Aussparung 10 aus. Dabei werden sie über die mit Traversen 2 gebildeten Schubgelenke 9 bis zur maximalen Distanzstellung exakt geführt.The
Das beschriebene Ausführungsbeispiel kann noch weitergebildet werden, indem an beiden Seitenflächen der Führungsbrücke 4 elastische Biegefedern 3 angeordnet sind. Dabei wechseln sich Führungsbrücken 4 mit Biegefedern 3 und Führungsbrücken 4 ohne Biegefedern 3 innerhalb der Aussparung 10 ab.The exemplary embodiment described can be further developed by arranging elastic
Eine weitere Ausführung wird dadurch erreicht, daß an jeder Führungsbrücke 4 beidseitig Biegefedern 3 angeordnet sind. Die benachbarten Biegefedern 3 sind dabei auf unterschiedlichem Niveau angeordnet oder durchdringen sich gegenseitig. Voraussetzung ist, daß die Oberkanten 11 aller Biegefedern 3 unter dem Niveau der Führungsbrücken 4 bleiben.A further embodiment is achieved in that
- 11
- SeitenmarkeSide mark
- 22nd
- Traversetraverse
- 33rd
- elastische Biegefederelastic spiral spring
- 44th
- FührungsbrückeGuide bridge
- 55
- AnlageblechSheet
- 66
- AnlegetischFeed table
- 77
- FörderrichtungDirection of conveyance
- 88th
- VerbindungselementFastener
- 99
- SchubgelenkThrust joint
- 1010th
- AussparungRecess
- 1111
- OberkanteTop edge
Claims (5)
- Sheet support unit for bridging a recess (10) for at least one side lay (1) in the lay-up table (6) of a rotary printing press with sheet guiding elements (4) extending elastically adjustably transverse to the sheet feed direction (7) between the lay-up table (6) and a feed plate (5), in each case according to the sheet format between a minimum and a maximum position, characterised in that transverse to the sheet feed direction (7) run two parallel cross-members (2) below the recess (10) on which several guide bridges (4) are mounted as sheet guiding elements parallel to the sheet feed direction (7), which in this region form thrust joints (9) and on their upper side span its distance in a plane with the lay-up table (6) and feed plate (5), wherein in each case between two neighbouring guide bridges (4) there is arranged an elastic bending spring (3) standing vertically upright which supports itself with its legs against the respectively oppositely lying side surface of each guide bridge (4).
- Sheet support unit according to Claim 1,
characterised in that within the recess (10) guide bridges (4) which have a bending spring (3) on each side surface alternate with guide bridges (4) without bending springs (3). - Sheet support unit according to Claim 1 and 2,
characterised in that the level of the upper edge (11) of the bending spring (3) lies below the level of the guide bridges (4). - Sheet support unit according to Claim 1 and 2,
characterised in that the extended length of the elastic bending spring (3) is shorter than the length of the guide bridge (4). - Sheet support unit according to Claim 1,
characterised in that the thrust joint (9) is constructed as a sliding couple.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4240660 | 1992-12-03 | ||
| DE4240660A DE4240660C1 (en) | 1992-12-03 | 1992-12-03 | Bow support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0601325A1 EP0601325A1 (en) | 1994-06-15 |
| EP0601325B1 true EP0601325B1 (en) | 1996-06-05 |
Family
ID=6474289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93117537A Expired - Lifetime EP0601325B1 (en) | 1992-12-03 | 1993-10-29 | Sheet support |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5370048A (en) |
| EP (1) | EP0601325B1 (en) |
| JP (1) | JPH0774059B2 (en) |
| AT (1) | ATE138883T1 (en) |
| DE (2) | DE4240660C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004032110A1 (en) * | 2004-07-02 | 2006-01-19 | Koenig & Bauer Ag | Cover for channel with side marks in printing machine comprises two zigzag-shaped spring strips, sheet guides being mounted on both ends of these |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4428527C1 (en) * | 1994-08-12 | 1995-11-30 | Roland Man Druckmasch | Variable length cover for printing machine |
| DE10236487A1 (en) * | 2002-08-09 | 2004-02-19 | Koenig & Bauer Ag | Cover device for use with sheet printers comprises flat surface element of several parts having circular segment shape with outer contour and inner contour following arcs to provide continuous surface |
| DE10236488A1 (en) * | 2002-08-09 | 2004-02-19 | Koenig & Bauer Ag | Cover for channel on feed table in printing machine whose width can be adjusted by moving side stops comprises hinged plates connected by pairs of long or short bolts, bolts of same length being adjacent |
| DE10335534A1 (en) | 2003-07-31 | 2005-02-17 | Metronic Ag | pit cover |
| DE202005008786U1 (en) * | 2005-05-25 | 2006-10-05 | Thieme Gmbh & Co. Kg | Flatbed printing machine has link belt capable of tracking side stop, to cover gap between infeed area edge and feeder edge |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB642554A (en) * | 1947-01-09 | 1950-09-06 | R Hoe & Crabtree Ltd | Improvements in sheet registering mechanism |
| DE1611362C3 (en) * | 1967-11-24 | 1981-09-10 | Maschinenbau Oppenweiler Binder & Co, 7155 Oppenweiler | Alignment table for conveying and simultaneously aligning sheets of paper, cardboard or the like |
| DE3666408D1 (en) * | 1986-11-20 | 1989-11-23 | Komori Printing Mach | Sheet conveyance table for sheet press |
| DE8902453U1 (en) * | 1989-03-01 | 1989-04-13 | Stahl Gmbh & Co Maschinenfabrik, 7140 Ludwigsburg | Alignment table |
| JPH0661932B2 (en) * | 1989-09-11 | 1994-08-17 | アキヤマ印刷機製造株式会社 | Sheet feeding guide for sheet-fed printing press |
| US5197382A (en) * | 1989-10-13 | 1993-03-30 | Am International, Inc. | Copy sheet proofing system |
| DE4105966C1 (en) * | 1991-02-26 | 1992-05-27 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De | |
| EP0553739B1 (en) * | 1992-01-31 | 1995-08-02 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Sheet guide element adjusting device in rotary printing machines |
-
1992
- 1992-12-03 DE DE4240660A patent/DE4240660C1/en not_active Expired - Fee Related
-
1993
- 1993-10-29 DE DE59302819T patent/DE59302819D1/en not_active Expired - Fee Related
- 1993-10-29 EP EP93117537A patent/EP0601325B1/en not_active Expired - Lifetime
- 1993-10-29 AT AT93117537T patent/ATE138883T1/en active
- 1993-12-02 JP JP5302783A patent/JPH0774059B2/en not_active Expired - Fee Related
- 1993-12-03 US US08/162,497 patent/US5370048A/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004032110A1 (en) * | 2004-07-02 | 2006-01-19 | Koenig & Bauer Ag | Cover for channel with side marks in printing machine comprises two zigzag-shaped spring strips, sheet guides being mounted on both ends of these |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4240660C1 (en) | 1994-02-10 |
| ATE138883T1 (en) | 1996-06-15 |
| JPH06211378A (en) | 1994-08-02 |
| DE59302819D1 (en) | 1996-07-11 |
| JPH0774059B2 (en) | 1995-08-09 |
| EP0601325A1 (en) | 1994-06-15 |
| US5370048A (en) | 1994-12-06 |
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