Global Patent Index - EP 1727674 A1

EP 1727674 A1 20061206 - VACUUM UNIT FOR A DEVICE USED TO STRUCTURE THE SURFACE OF A WORKPIECE BY MEANS OF RADIATION

Title (en)

VACUUM UNIT FOR A DEVICE USED TO STRUCTURE THE SURFACE OF A WORKPIECE BY MEANS OF RADIATION

Title (de)

ABSAUGEINRICHTUNG FÜR EINE VORRICHTUNG ZUM STRUKTURIEREN EINER OBERFLÄCHE EINES WERKSTÜCKS MITTELS STRAHLUNG

Title (fr)

SYSTEME D'ASPIRATION POUR UN DISPOSITIF SERVANT A STRUCTURER UNE SURFACE D'UNE PIECE A USINER AU MOYEN D'UN RAYONNEMENT

Publication

EP 1727674 A1 20061206 (DE)

Application

EP 04731176 A 20040505

Priority

  • EP 2004004789 W 20040505
  • DE 10355996 A 20031127

Abstract (en)

[origin: WO2005061232A1] The invention relates to a vacuum unit for a device used to structure the surface of a workpiece (24), in particular a plate, such as e.g. a flexographic printing block, by means of radiation, in particular laser radiation, the workpiece being a cylinder or a plate that is located on a cylinder during the engraving process. Said unit comprises a hood (11) that covers an interaction zone between the radiation and the surface of the workpiece and that has a vacuum channel (12), whose inlet (15) lies opposite the surface of the workpiece in the operating position of the hood (11) and which can be connected to a vacuum line (38). The aim of the invention is to prevent the abraded and decomposition products that form during the machining of cylindrical workpieces, such as e.g. aerosols, vapour, fumes or gases from being released into the environment. To achieve this, the unit is also equipped with a C-shaped cover ring (13), which comprises two ends that that follow the circumference of the workpiece and are located at a distance from one another and which has a substantially U-shaped cross-section with two opposing lateral walls (18), which are interconnected by a base wall (19). The hood (11) is located between the two ends of the cover ring (13).

IPC 8 full level

B41C 1/05 (2006.01); B23K 26/08 (2006.01); B23K 26/14 (2006.01); B41C 1/18 (2006.01); B41N 1/12 (2006.01)

CPC (source: EP)

B41C 1/05 (2013.01); B41N 1/12 (2013.01)

Citation (search report)

See references of WO 2005061233A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 10355996 A1 20050630; AT 415274 T 20081215; AT 415275 T 20081215; CN 100551695 C 20091021; CN 100551696 C 20091021; CN 1886263 A 20061227; CN 1886264 A 20061227; DE 502004008554 D1 20090108; DE 502004008555 D1 20090108; EP 1727673 A1 20061206; EP 1727673 B1 20081126; EP 1727674 A1 20061206; EP 1727674 B1 20081126; JP 2007512139 A 20070517; JP 2007512556 A 20070517; JP 4567002 B2 20101020; JP 4619365 B2 20110126; US 2007107252 A1 20070517; US 2007108167 A1 20070517; WO 2005061232 A1 20050707; WO 2005061233 A1 20050707

DOCDB simple family (application)

DE 10355996 A 20031127; AT 04731147 T 20040505; AT 04731176 T 20040505; CN 200480035374 A 20040505; CN 200480035375 A 20040505; DE 502004008554 T 20040505; DE 502004008555 T 20040505; EP 04731147 A 20040505; EP 04731176 A 20040505; EP 2004004788 W 20040505; EP 2004004789 W 20040505; JP 2006540185 A 20040505; JP 2006540186 A 20040505; US 58027404 A 20040505; US 58027504 A 20040505