EP 0925188 B1 20000628 - METHOD AND DEVICE TO CONTROL AN ENGRAVING DEVICE
Title (en)
METHOD AND DEVICE TO CONTROL AN ENGRAVING DEVICE
Title (de)
VERFAHREN UND EINRICHTUNG ZUR STEUERUNG EINES GRAVIERORGANS
Title (fr)
PROCEDE ET DISPOSITIF POUR LA COMMANDE D'UN DISPOSITIF DE GRAVAGE
Publication
Application
Priority
- DE 9701721 W 19970812
- DE 19635831 A 19960904
Abstract (en)
[origin: DE19635831A1] The invention relates to a method to control an engraving device for the engraving of printing forms by means of an engraving tool (2) controlled by a driving system (4,5). Set engraving depth values for the cups along with engraving signal values are produced from engraving data as a control signal for the driving system (4,5). The working strokes of the engraving tool (2) and the distances (A) between the printing form (3) and the engraving tool (2) are measured and the actual values of the engraving depth are determined from the differences and compared to the set engraving depth values. The control signal for the driving system (4,5) is turned on at the beginning of engraving of the cup and turned off when the engraving depth is reached at the end of engraving of the cup. Set values for pressure force and tractive force are also obtained from the engraving data and compared to the actual pressure force values applied to the engraving tool (2) and the actual tractive force values applied to the return element (9) of the engraving tool (2). Exceeded set values are indicated. The control signal is corrected according to pressure force and tractive force measurement in order to allow for differing hardnesses of material of the printing Form (3).
IPC 1-7
IPC 8 full level
B41C 1/045 (2006.01)
CPC (source: EP US)
B41C 1/045 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
DE 19635831 A1 19980305; DE 59701948 D1 20000803; EP 0925188 A1 19990630; EP 0925188 B1 20000628; JP 2000502628 A 20000307; JP 3335642 B2 20021021; US 6421576 B1 20020716; WO 9809817 A1 19980312
DOCDB simple family (application)
DE 19635831 A 19960904; DE 59701948 T 19970812; DE 9701721 W 19970812; EP 97937448 A 19970812; JP 51202398 A 19970812; US 25429399 A 19990601