DE893343C - Clamping device for metal sheets in offset printing machines - Google Patents
Clamping device for metal sheets in offset printing machinesInfo
- Publication number
- DE893343C DE893343C DEG5784A DEG0005784A DE893343C DE 893343 C DE893343 C DE 893343C DE G5784 A DEG5784 A DE G5784A DE G0005784 A DEG0005784 A DE G0005784A DE 893343 C DE893343 C DE 893343C
- Authority
- DE
- Germany
- Prior art keywords
- metal sheet
- clamping
- forme cylinder
- clamping device
- pivot bearing
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
- B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
- B41P2227/40—Adjusting means for printing plates on the cylinder
- B41P2227/43—Adjusting means for printing plates on the cylinder diagonally
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Description
Aufspannvorrichtung für Metallblätter in Offsetdruckmaschinen Die, Erfindung betrifft eine Aufspannvorrichtung für Metallblätter, bei der das an Spannleiisten befestigte Metallblatt auf dem Formzylinder verschiebbar ist.Clamping device for metal sheets in offset printing machines The, The invention relates to a clamping device for metal sheets, in which the clamping strips attached metal sheet is slidable on the forme cylinder.
Damit ein genauer Sitz und eine genaue, Anpassung erzielt werden kann, muß das Metallblatt in jeder Richtung, also. auch in schräger Richtung, verschiebbar, sein. Das Verschieben des Metallblattes in der Laufrichtung oder ent egen der- Laufrichtung des Formzylinders geschieht üblicherweisedurch Drehen des Formzylinders auf seiner Achse. Zur Ouer- und Schrägverstellung müssen bei den bekannten Vorrichtungen Schrauben oder andere Spannorgane gelöst werden und meist muß sogar dasjenige Metallblattende, das gar nicht verstellt werden soll, gelöst werden, damit sich das Metallblatt faltenfrei verschieben läßt. Das Festspannen der Schrauben muß dann nach Gefühl erfolgen, was aber sehr viel Erfahrung erfordert und oft ein Verspannen des Metallblattes zur Folge hat.So that an exact fit and an exact adjustment can be achieved, the metal sheet must be in every direction, so. also in an inclined direction, movable, be. Moving the metal sheet in or against the direction of travel of the forme cylinder is usually done by rotating the forme cylinder on its Axis. In the known devices, screws must be used for cross-adjustment and inclination or other tensioning organs are loosened and in most cases even the end of the metal sheet has to be that should not be adjusted at all, must be loosened so that the metal sheet is wrinkle-free can move. The tightening of the screws must then be done by feeling what but requires a lot of experience and often a bracing of the metal sheet Consequence.
Die Erfindung schafft eine Aufspannvorrichtung, bei der durch Läsen einer einzigen Spannschraube das Metallblatt an beiden Enden derart gelockert wird, daß jedes Ende unabhängig vom anderen Ende verstellt werden kann. Beim Wiederanziehen der Spannschraube wird das Metallblatt infolge seiner Zweipunktaufhängung in der gewünschten Lage falten- und verspannungsfrei auf dem Zylinder festgespannt, wobei es sich selbst ausrichtet.The invention provides a jig in which by cutting the metal sheet is loosened at both ends with a single clamping screw in such a way that that each end can be adjusted independently of the other end. When tightening again the clamping screw is the metal sheet due to its two-point suspension in the desired position clamped tightly on the cylinder free of folds and tension, whereby it aligns itself.
Das Kennzeichen der Erfindung besteht darin, daß jede der beiden Spannlei-ste@n in einem vorzugsweise in der Formzylinderachsrich-tung verschiebbaren Schwenklager gelagert ist, um das die zugehörige Spannleiste in eiiner Ebene ve@rschwenkbar ist, in. der ,die Aufspannkante des Formzylinders liegt. Die Erfindung ist in der Zeichnung dargestellt, und zwar zeigt Fig. i .einen Schnitt durch den Formzylinder einer Offsetmaschine mit aufgespanntem Metallblatt, Fig. 2 eine Ansicht der in Fig. i dargestellten Spannvorrichtung, gesehen von der rechtem Seite der Fig. i, wobei das rechte Metallblattende nach unten verschoben ist, Fig. 3 eine schematischeDarstellung eines normal aufgespannten Metallblattes, Fig.4 eine schematische Darstellung eines Metallblattes, bei dem beide Enden in entgegengesetzten Richtungen verschoben sind, und Fig-.5 eine schematische Darstellung eines Metallblattes, bei dem beide Enden nach der gleichen Seite hin verschoben sind.The characteristic of the invention is that each of the two Spannlei-ste @ n in a pivot bearing, which is preferably displaceable in the forme cylinder axis direction is mounted around which the associated clamping bar can be swiveled in one plane, in. the, the mounting edge of the forme cylinder lies. The invention is shown in the drawing, namely Fig. i. A section through the Form cylinder of an offset machine with a clamped metal sheet, FIG. 2 a view the clamping device shown in Fig. i, seen from the right side of the Fig. I, wherein the right metal sheet end is shifted downward, Fig. 3 a schematic representation of a normally stretched metal sheet, FIG. 4 a schematic representation Representation of a metal sheet with both ends facing in opposite directions are shifted, and Fig. 5 is a schematic representation of a metal sheet at both ends are shifted towards the same side.
Die Aufspannv orrichtung ist wie üblich im Spalt des Offsetzylinders i untergebracht. Das Metallblatt 2 wird an seiner Voirderkante 3 und an seiner Hinterkante 4 durch zwei Hakenleisten oder Klemmleisten 5 und 6 gehaltem, die gleitend auf den beiden Stützschienen 7 und: 8 liegen. Die Hakenleisten 5 und 6 sind winkelförmig. In ihrer Mitte wird jede Leiste durch einen Kugel-kopf 9 und io gehalten, von denen der Kugelkopf 9 auf Hebel i i und der Kugelkopf i o auf Hebel 12 sitzt. Der Hebel ii ist durch einem Zapfen 13 auf einem Gleitstück 14 gelagert, während der Hebel 12 durch einen Zapfen 15 auf einem Gleitstück i,6 gelagert ist. Außerdem weist der Hebel i i einen Zapfen 17 und der Hebel 12 einen Zapfen 18 auf. Die Zapfen 17 und i8 sind durch eine, Feder i9 miteinander verbunden, so daß durch die Wirkung dieser Feder i9 die Enden der Hebel i i und 12 ,gegen eine Spannschraube 2o gedrückt werden.The Aufspannv device is housed as usual in the gap of the offset cylinder i. The metal sheet 2 is held on its front edge 3 and on its rear edge 4 by two hook strips or clamping strips 5 and 6, which slide on the two support rails 7 and 8. The hook strips 5 and 6 are angular. In its center, each bar is held by a ball head 9 and io, of which the ball head 9 sits on lever ii and the ball head io sits on lever 12. The lever ii is mounted on a slide 14 by a pin 13, while the lever 12 is mounted on a slide i, 6 by a pin 15. In addition, the lever ii has a pin 17 and the lever 12 has a pin 18. The pins 17 and i8 are connected to one another by a spring i9, so that the ends of the levers ii and 12 are pressed against a clamping screw 2o by the action of this spring i9.
Durch Anziehen der Schraube 2o werden die Hebel ii und 12 um ihre Zapfen 13 und 15 ge- dreht, und ihre Köpfe g und io pressen gegen die Hakenleisten 5 und 6, so daß das Metallblatt 2 auf dem Zylindermantel zur Anlage kommt und festgespannt wird.By tightening the screw 2o the levers ii and 12 are rotated about their pins 1 3 and 1 5 , and their heads g and io press against the hook strips 5 and 6 so that the metal sheet 2 comes to rest on the cylinder jacket and is clamped will.
Das Glettstück 14 wird auf den Stiftern 2 1 und 22 geführt, die in. die Schlitze 23 und 24 des. Gleitstückes eingreifen. Die Verschiebung des Gleitstückes 14 erfolgt durch einen Exzenter 25. Das Gleitstück 16 wird auf Stiften 26 und 2-7 geführt, die in die Schlitze 2$ und 29 des Gleitstückes eingreifen. Die Verschiebung des Gleitstückes 16 erfolgt durch einen Exzenter 30. We!r!dendieE.xzenter 25 und 30 gedreht, so, werden die Lageirstellen der Kugelköpfe 9 und io verschoben und die Hakenleisten stellen sich entsprechend der seitlichen Verstellung der Gleitstücke 14 und 16 schräg ein. Nach Festziehen der Spannschraube 2o liegt dann das Metallblatt 2 in der gewünschten Schräglage auf denn Formzylinder festgespannt.The glett piece 14 is guided on the pins 2 1 and 22, which engage in the slots 23 and 24 of the slide piece. The sliding piece 14 is shifted by an eccentric 25. The sliding piece 16 is guided on pins 26 and 2-7, which engage in the slots 2 $ and 29 of the sliding piece. The displacement of the slider 16 is effected by an eccentric 30. We! R! DendieE.xzenter rotated 25 and 30, so that Lageirstellen the ball heads are shifted 9 and io and the hook strips face corresponding to the lateral displacement of the sliders 14 and 1 6 obliquely a. After tightening the clamping screw 2o, the metal sheet 2 is then clamped in the desired inclined position on the forme cylinder.
Bei der Einstellung näch Fig. i ist der Kugelkopf io in seiner Mittelstellung und der Kugelkopf 9 nach rechts durch die vorbeschriebene Einrichtung geschobn worden, so daß eine nach rechts verwundene Schräglage des Metallblattes 2 sich ergibt.When setting next Fig. I, the ball head io is in its central position and the ball head 9 has been pushed to the right by the device described above, so that an inclined position of the metal sheet 2 twisted to the right results.
Fig..3 stellt die Normallage des Metallblattes dar, bei der die Kugelköpfe 9 und io in einer Ebene liegen, die durch die Spannschraub°:2o senkrecht zum Zylinder i liegt.Fig..3 shows the normal position of the metal sheet in which the ball heads 9 and io lie in a plane which, through the clamping screw °: 2o, is perpendicular to the cylinder i lies.
In Fig. 4 -ist der Kugelkopf io nach rechts, der Kugelkopf 9 dagegen nach links verschoben, so daß sich eine schräg verwundene Lage des Metallblattes 2 ergibt.In Fig. 4 - the ball head io to the right, the ball head 9 on the other hand shifted to the left, so that there is an obliquely twisted position of the metal sheet 2 results.
In Fig. 5 sind beide Kugelköpfe 9 und io durch die Exzenter 25 und 30 nach links verschoben, so daß das Metallblatt gleichmäßig über den Zylinder i bewegt worden ist.In Fig. 5 both ball heads 9 and io are shifted by the eccentrics 25 and 30 to the left, so that the metal sheet has been moved evenly over the cylinder i.
Zum Verstellendes Metallblattes 2 wird also di-c Spannschraube 2o gelockert, die Exzenter 25 und 30 werden verstellt, bis die gewünschte Lage des Metallb-lattes 2 erreicht ist, und dann wird die Spannschrawbe 20 wieder angezogen, so daß dadurch das Metallblatt 2 fest an dem Zylinder i angelegt wird.To adjust the metal sheet 2, the clamping screw 2o is loosened, the eccentrics 25 and 30 are adjusted until the desired position of the metal sheet 2 is reached, and then the tensioning screw 20 is tightened again so that the metal sheet 2 is firmly attached the cylinder i is applied.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG5784A DE893343C (en) | 1951-04-27 | 1951-04-27 | Clamping device for metal sheets in offset printing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG5784A DE893343C (en) | 1951-04-27 | 1951-04-27 | Clamping device for metal sheets in offset printing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE893343C true DE893343C (en) | 1953-10-15 |
Family
ID=7117924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG5784A Expired DE893343C (en) | 1951-04-27 | 1951-04-27 | Clamping device for metal sheets in offset printing machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE893343C (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1041975B (en) * | 1954-10-08 | 1958-10-30 | Usines Quiri & Cie S A R L Soc | Device for properly fitting the printing plates on the plate cylinders of rotary printing presses |
DE1189561B (en) * | 1962-01-19 | 1965-03-25 | Agfa Ag | Device for attaching flexible printing plates to the forme cylinder of rotary printing machines |
DE1204687B (en) * | 1961-09-05 | 1965-11-11 | Roto Werke A G | Device for exchanging flexible printing plates on the forme cylinder of rotary printing machines, in particular duplicating machines |
DE1213861B (en) * | 1956-02-24 | 1966-04-07 | Gerhard Ritzerfeld | Rotary multiplier with a printing cylinder for stretching thin, flexible printing form foils |
DE1231259B (en) * | 1962-10-17 | 1966-12-29 | Koenig & Bauer Schnellpressfab | Device for clamping flexible printing plates on forme cylinders of printing machines |
DE1257165B (en) * | 1962-09-25 | 1967-12-28 | Norman John Garrod | Device for attaching two flexible printing forms lying next to one another on the forme cylinder of printing machines |
DE2754080A1 (en) * | 1977-12-05 | 1979-06-07 | Registersystem Drucktech | Plate clamp for printing plate cylinder - provides clamping action and precisely known clamping force using conically tipped clamp elements |
FR2471218A1 (en) * | 1979-12-04 | 1981-06-19 | Windmoeller & Hoelscher | DEVICE FOR FIXING FORMAT PLATES FOR THE TRANSFER OF ADHESIVE LAYERS WITH AN EXACT FORMAT ON FORMAT CYLINDERS |
DE3409479A1 (en) * | 1984-03-15 | 1985-09-26 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | TENSIONING DEVICES FOR THE PRESSURE PLATES FOR THE OFFSET PRINTING MACHINES WITH HOLES IN THE FRONT AND REAR EDGES IN THE CURVING ORIENTATION |
DE3604209A1 (en) * | 1986-02-11 | 1987-08-13 | Heidelberger Druckmasch Ag | DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES |
DE3614578A1 (en) * | 1986-04-30 | 1987-11-05 | Koenig & Bauer Ag | REGISTER SYSTEM FOR A ROTARY PRINTING MACHINE |
EP0308797A2 (en) * | 1987-09-21 | 1989-03-29 | Koenig & Bauer Aktiengesellschaft | Tensioning device for printing plates |
EP0308799A2 (en) * | 1987-09-19 | 1989-03-29 | Koenig & Bauer Aktiengesellschaft | Device for attaching printing plates to cylinders |
US6443066B2 (en) | 2000-05-12 | 2002-09-03 | Heidelberger Druckmaschinen Ag | Device for correcting skew of printing plates on a plate cylinder of a rotary printing machine |
US6467406B1 (en) * | 1999-11-02 | 2002-10-22 | Riso Kagaku Corporation | Stencil printing machine |
-
1951
- 1951-04-27 DE DEG5784A patent/DE893343C/en not_active Expired
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1041975B (en) * | 1954-10-08 | 1958-10-30 | Usines Quiri & Cie S A R L Soc | Device for properly fitting the printing plates on the plate cylinders of rotary printing presses |
DE1213861B (en) * | 1956-02-24 | 1966-04-07 | Gerhard Ritzerfeld | Rotary multiplier with a printing cylinder for stretching thin, flexible printing form foils |
DE1204687B (en) * | 1961-09-05 | 1965-11-11 | Roto Werke A G | Device for exchanging flexible printing plates on the forme cylinder of rotary printing machines, in particular duplicating machines |
DE1189561B (en) * | 1962-01-19 | 1965-03-25 | Agfa Ag | Device for attaching flexible printing plates to the forme cylinder of rotary printing machines |
DE1257165B (en) * | 1962-09-25 | 1967-12-28 | Norman John Garrod | Device for attaching two flexible printing forms lying next to one another on the forme cylinder of printing machines |
DE1231259B (en) * | 1962-10-17 | 1966-12-29 | Koenig & Bauer Schnellpressfab | Device for clamping flexible printing plates on forme cylinders of printing machines |
DE2754080A1 (en) * | 1977-12-05 | 1979-06-07 | Registersystem Drucktech | Plate clamp for printing plate cylinder - provides clamping action and precisely known clamping force using conically tipped clamp elements |
FR2471218A1 (en) * | 1979-12-04 | 1981-06-19 | Windmoeller & Hoelscher | DEVICE FOR FIXING FORMAT PLATES FOR THE TRANSFER OF ADHESIVE LAYERS WITH AN EXACT FORMAT ON FORMAT CYLINDERS |
DE2948744A1 (en) * | 1979-12-04 | 1981-09-24 | Windmöller & Hölscher, 4540 Lengerich | DEVICE FOR ATTACHING FORMAT PLATES FOR EXACTLY TRANSMITTING ADHESIVE ADHESIVES TO FORMAT ROLLERS |
DE3409479A1 (en) * | 1984-03-15 | 1985-09-26 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | TENSIONING DEVICES FOR THE PRESSURE PLATES FOR THE OFFSET PRINTING MACHINES WITH HOLES IN THE FRONT AND REAR EDGES IN THE CURVING ORIENTATION |
DE3604209A1 (en) * | 1986-02-11 | 1987-08-13 | Heidelberger Druckmasch Ag | DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES |
EP0232730A2 (en) * | 1986-02-11 | 1987-08-19 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for fixing a flexible printing plate on the plate cylinder of a rotary-printing machine |
EP0232730A3 (en) * | 1986-02-11 | 1989-11-29 | Heidelberger Druckmaschinen Aktiengesellschaft | Device for fixing a flexible printing plate on the plate cylinder of a rotary-printing machine |
DE3614578A1 (en) * | 1986-04-30 | 1987-11-05 | Koenig & Bauer Ag | REGISTER SYSTEM FOR A ROTARY PRINTING MACHINE |
EP0308799A2 (en) * | 1987-09-19 | 1989-03-29 | Koenig & Bauer Aktiengesellschaft | Device for attaching printing plates to cylinders |
EP0308799A3 (en) * | 1987-09-19 | 1989-05-24 | Koenig & Bauer Aktiengesellschaft | Device for attaching printing plates to cylinders |
US4862800A (en) * | 1987-09-19 | 1989-09-05 | Koenig & Bauer Aktiengesellschaft | Plate skewing assembly |
EP0308797A2 (en) * | 1987-09-21 | 1989-03-29 | Koenig & Bauer Aktiengesellschaft | Tensioning device for printing plates |
EP0308797A3 (en) * | 1987-09-21 | 1989-07-05 | Koenig & Bauer Aktiengesellschaft | Tensioning device for printing plates |
US4938135A (en) * | 1987-09-21 | 1990-07-03 | Koenig & Bauer Aktiengesellschaft | Plate clamping assembly |
US6467406B1 (en) * | 1999-11-02 | 2002-10-22 | Riso Kagaku Corporation | Stencil printing machine |
US6443066B2 (en) | 2000-05-12 | 2002-09-03 | Heidelberger Druckmaschinen Ag | Device for correcting skew of printing plates on a plate cylinder of a rotary printing machine |
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