DE654399C - Device for clamping flexible printing forms - Google Patents
Device for clamping flexible printing formsInfo
- Publication number
- DE654399C DE654399C DER95212D DER0095212D DE654399C DE 654399 C DE654399 C DE 654399C DE R95212 D DER95212 D DE R95212D DE R0095212 D DER0095212 D DE R0095212D DE 654399 C DE654399 C DE 654399C
- Authority
- DE
- Germany
- Prior art keywords
- bar
- forme cylinder
- printing
- forme
- bridge
- 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
- B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler
-
- 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
- B41F27/125—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 on a curvilinear path, e.g. by winding on a roll
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Aufspannen von biegsamen Druckformen auf einen im Querschnitt segmentförmigen Formzylinder mit einer ortsfesten und einer be-S weglichen Halteleiste für die Druckform, wobei der segmentförmige Formzylinder beim Festspannen der Druckform, d.h. beim Bewegen der Halteleiste durch eine Brücke, zu einem \rollen Zylinder ergänzt wird. Die bekannten Vorrichtungen dieser Art sind in ihrer Bauart und Bedienungsweise ziemlich umständlich zum Festspannen der Druckformen. The invention relates to a device for clamping flexible printing plates on a forme cylinder with a segment-shaped cross-section with a stationary and a movable holding bar for the printing forme, the segment-shaped forme cylinder becoming one when the printing forme is clamped, ie when the holding bar is moved through a bridge \ r ollen cylinder is completed. The known devices of this type are rather cumbersome in terms of their design and operation for clamping the printing formes.
Um nun sowohl die Bauart als auch die Bedienungsart dieser bekannten Vorrichtung zu vereinfachen, wird erfindungsgemäß die Brücke aus gelenkig miteinander verbundenen, außen zylindrisch geformten, gegenseitig federbelasteten, leistenfcjrmigen Teilen gebildet, von denen die eine Leiste an dem Formzylinder und die andere an der beweglichen Halteleiste für die Druckform derart angelenkt ist, daß beim Bewegen der beiden leistenförmigen Teile in senkrechter Richtung zur Formzylinderachse, d.h. beim Niederschwenken der beiden Teile um ihre Gelenke, die bewegliche Halteleiste zum Ein- bzw. Aushängen des einen Druckformendes freigegeben wird.To now both the design and the mode of operation of this known device To simplify, according to the invention, the bridge is made of articulated interconnected, externally cylindrically shaped, mutually spring-loaded, strip-shaped parts formed, of which one bar on the forme cylinder and the other on the movable Holding bar for the printing form is articulated in such a way that when the two bar-shaped parts are moved in the vertical direction to the forme cylinder axis, i.e. when the two parts are pivoted down around their joints, the movable retaining bar is released for hanging or unhooking one end of the printing forme will.
Die Brückenteile genügen somit zum Verstellen der beweglichen Halteleiste und zum Aufspannen der Druckform.The bridge parts are thus sufficient to adjust the movable retaining bar and to Clamping the printing form.
Der Erfindungsgegenstand ist beispielsweise in einer Ausführungsform auf den Zeichnungen veranschaulicht. Es zeigen:The subject of the invention is, for example, in one embodiment in the drawings illustrated. Show it:
Abb. ι einen Querschnitt durch den Formzylinder mit der niedergedrückten Brücke,Fig. Ι a cross section through the forme cylinder with the pressed bridge,
Abb.. 2 einen Querschnitt durch, den Formzylinder mit der gespannten Brücke, Abb. 3 einen Längsschnitt durch den Formzylinder, Fig. 2 a cross section through the forme cylinder with the tensioned bridge, Fig. 3 is a longitudinal section through the forme cylinder,
Abb. 4 eine Draufsicht auf die Brücke. Die beiden Brückenteile oder Leisten 1 und 2 sind durch eine Stange 6 scharnierartig, also gelenkig, miteinander verbunden. Die Leiste 1 ist an der Stange 7 am Formzylinder 3 in der Nähe der ortsfesten Halteleiste 9 ■ angelenkt. Die Leiste 2, die mit der Leiste 1 durch die Stange 6 gelenkig verbunden ist, ist an einer Stange 8 angelenkt, die an. der beweglichen Halteleiste 4 befestigt ist. Die Halteleiste 4 selbst ist an dem Formzylinder um Bolzen ι ο schwenkbar angeordnet. Die beiden Stangen 7 und 8 sind durch Federn 5 miteinander verbunden, die die beiden Teile in der gewölbten Lage (Abb. 2) zu halten suchen.Fig. 4 is a top view of the bridge. The two bridge parts or strips 1 and 2 are connected to one another in a hinge-like manner, that is to say articulated, by a rod 6. the The bar 1 is on the rod 7 on the forme cylinder 3 in the vicinity of the stationary retaining bar 9 ■ articulated. The bar 2, which is articulated to the bar 1 by the rod 6, is hinged to a rod 8, the. the movable retaining bar 4 is attached. the Retaining bar 4 itself is arranged on the forme cylinder so as to be pivotable about bolts ι ο. the the two rods 7 and 8 are connected to one another by springs 5 which form the two parts in the arched position (Fig. 2).
Wird die Brücke, d.h. die beiden Teile 1 und 2, oder die Stange 6 niedergedrückt, d. h. nahezu senkrecht zur Zylinderachse bewegt, so werden hierdurch die Federn 5 gespannt und die schwenkbare Halteleiste 4 nach außen bewegt. Die Entfernung zwischen den Aufhängehaken 12 längs des Zylinderumfanges wird hierbei kleiner. In dieser Lage der Halteleiste kann die Druckform 11 leicht abgenommen werden. Sobald der Druck auf die beiden Teile 1 und 2 nachläßt, kommt die Wirkung der Federn 5 wieder zur Geltung und spannt die beiden Teile 1 und 2 derart, 7" daß durch die Brücke der segmentförmige Zylinder zu einem vollen Zylinder ergänzt wird.If the bridge, i.e. the two parts 1 and 2, or the rod 6 is depressed, i. H. Moved almost perpendicular to the cylinder axis, the springs 5 are thereby tensioned and the pivotable retaining bar 4 is moved outward. The distance between the hanging hooks 12 along the cylinder circumference becomes smaller here. In this situation the Holding bar, the printing forme 11 can be easily removed. Once the pressure is on the two parts 1 and 2 wears off, the effect of the springs 5 comes into play again and clamps the two parts 1 and 2 in such a way, 7 " that the segment-shaped cylinder is supplemented by the bridge to form a full cylinder will.
An Stelle der Haken 12 können auch andere Haltevorrichtungen für die Druckform vorgesehen sein.Instead of the hooks 12, other holding devices can also be provided for the printing form be.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER95212D DE654399C (en) | Device for clamping flexible printing forms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER95212D DE654399C (en) | Device for clamping flexible printing forms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE654399C true DE654399C (en) | 1937-12-17 |
Family
ID=7419314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DER95212D Expired DE654399C (en) | Device for clamping flexible printing forms |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE654399C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943649C (en) * | 1951-07-24 | 1956-05-24 | Roto Werke A G | Fastening device for printing forms |
| US3772991A (en) * | 1970-07-09 | 1973-11-20 | S Taguchi | Means for mounting a dye-transfer matrix to a plate cylinder |
| US4347788A (en) * | 1980-05-01 | 1982-09-07 | Harris Corporation | Plate lockup mechanism |
-
0
- DE DER95212D patent/DE654399C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943649C (en) * | 1951-07-24 | 1956-05-24 | Roto Werke A G | Fastening device for printing forms |
| US3772991A (en) * | 1970-07-09 | 1973-11-20 | S Taguchi | Means for mounting a dye-transfer matrix to a plate cylinder |
| US4347788A (en) * | 1980-05-01 | 1982-09-07 | Harris Corporation | Plate lockup mechanism |
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