Title (en)

PRINTING UNIT WITH SYNCHRONISED CONTROL FOR ROTARY OR FLAT SILK-SCREEN PRINTING MACHINES

Title (de)

DRUCKEINHEIT MIT SYNCHRONISIERTER STEUERUNG FÜR ROTATIONS- ODER FLACHSIEBDRUCKMASCHINEN

Title (fr)

UNITE D'IMPRESSION A COMMANDE SYNCHRONISEE POUR MACHINES DE SERIGRAPHIE SUR ROTATIVE OU A PLAT

Publication

EP 1098768 A1 20010516 (EN)

Application

EP 99922162 A 19990416

Priority

• EP 9903009 W 19990416
• IT MI980854 A 19980422

Abstract (en)

[origin: WO9954138A1] A printing unit for rotary, frame or cylinder (20) silk-screen printing machines, which are used for printing of substrates, and in particular textiles. Two spindles (50) for each printing unit drive a ring (30) of the printing cylinder (20), whereas each spindle (50) is controlled by means of a brushless-type electric motor (60), an epicycloidal reduction gear (70) with reduced play, a toothed drive belt (10), and ball bearings which have a small cross section, such that the digital drives of the electric motors (60) control the speed of the motors (60) in a closed loop. The digital drives are in turn controlled by axis control cards which are integrated in a PLC, in order to obtain synchronisation of the motion of the cylinders (20) and of the conveyor belt (40) for the substrate to be printed.

IPC 1-7

B41F 15/08; B41F 13/004

IPC 8 full level

B41F 13/004 (2006.01); B41F 15/08 (2006.01)

CPC (source: EP)

B41F 13/0045 (2013.01); B41F 15/0809 (2013.01); B41F 15/0836 (2013.01); B41P 2213/70 (2013.01); B41P 2213/72 (2013.01); B41P 2215/11 (2013.01)

Designated contracting state (EPC)

AT DE ES FR IT NL PT

DOCDB simple family (publication)

WO 9954138 A1 19991028; AT E222536 T1 20020915; AU 3930699 A 19991108; DE 69902593 D1 20020926; DE 69902593 T2 20030703; EP 1098768 A1 20010516; EP 1098768 B1 20020821; IT 1303912 B1 20010301; IT MI980854 A1 19991022

DOCDB simple family (application)

EP 9903009 W 19990416; AT 99922162 T 19990416; AU 3930699 A 19990416; DE 69902593 T 19990416; EP 99922162 A 19990416; IT MI980854 A 19980422