EP 2313218 A1 20110427 - METHOD AND APPARATUS FOR PRODUCING A CIRCULAR CYLINDRICAL BODY COMPRISING A WORKABLE MASS AND HAVING INTERNAL HELICAL RECESSES
Title (en)
METHOD AND APPARATUS FOR PRODUCING A CIRCULAR CYLINDRICAL BODY COMPRISING A WORKABLE MASS AND HAVING INTERNAL HELICAL RECESSES
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES AUS PLASTISCHER MASSE BESTEHENDEN KREISZYLINDRISCHEN KÖRPERS MIT INNENLIEGENDEN WENDELFÖRMIGEN AUSNEHMUNGEN
Title (fr)
PROCÉDÉ ET DISPOSITIF DE FABRICATION D'UN CORPS EN CYLINDRE CIRCULAIRE CONSTITUÉ D'UNE PÂTE PLASTIQUE ET DOTÉ DE DÉCOUPES HÉLICOÏDALES INTÉRIEURES
Publication
Application
Priority
- EP 2009057583 W 20090618
- DE 102008033413 A 20080716
Abstract (en)
[origin: US9044797B2] A method is for producing a circular cylindrical body (10) comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body (10) is initially produced with a straight internal recess, for example by means of extrusion. Afterwards the body is cut to a defined length. The body (10) that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement (23) while being supported over the entire length thereof on a support means (16). The rolling process takes place in multiple steps, wherein a rolling movement using a first axis of rotation (25) is performed in a first step, and a rolling movement using a second axis of rotation (26) that is different from the first axis of rotation is used in a second step. There is also an apparatus for performing the method.
IPC 8 full level
B21K 5/04 (2006.01); B21H 1/18 (2006.01); B21H 3/10 (2006.01); B22F 5/10 (2006.01)
CPC (source: EP KR US)
B21B 1/16 (2013.01 - US); B21H 1/18 (2013.01 - EP KR US); B21H 3/10 (2013.01 - EP KR US); B21K 5/04 (2013.01 - EP KR US); B22F 3/18 (2013.01 - EP US); B22F 5/10 (2013.01 - EP KR US); B28B 11/006 (2013.01 - US); B22F 2998/10 (2013.01 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008033413 A1 20100121; AT E529206 T1 20111115; CN 102099134 A 20110615; CN 102099134 B 20130522; EP 2313218 A1 20110427; EP 2313218 B1 20111019; ES 2373634 T3 20120207; JP 2011527943 A 20111110; JP 5453414 B2 20140326; KR 101264755 B1 20130515; KR 20110031950 A 20110329; US 2011113846 A1 20110519; US 2015027188 A1 20150129; US 8850861 B2 20141007; US 9044797 B2 20150602; WO 2010006873 A1 20100121
DOCDB simple family (application)
DE 102008033413 A 20080716; AT 09779827 T 20090618; CN 200980127368 A 20090618; EP 09779827 A 20090618; EP 2009057583 W 20090618; ES 09779827 T 20090618; JP 2011517837 A 20090618; KR 20117001088 A 20090618; US 201414471318 A 20140828; US 73744409 A 20090618