EP 2529849 B1 20210310 - Device and method for manufacturing slot pipes made of sheet panels
Title (en)
Device and method for manufacturing slot pipes made of sheet panels
Title (de)
Verfahren und Vorrichtung zum Herstellen von Schlitzrohren aus Blechtafeln
Title (fr)
Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle
Publication
Application
Priority
DE 102011103734 A 20110531
Abstract (en)
[origin: EP2529849A2] The method involves supplying a sheet panel (3) to a pipe forming press (1) in which the sheet panel is molded to a slot pipe through application of bending force, where the slot pipe is provided with longitudinal edges. The slot pipe is manufactured with an irregular blank mold while a small molding of the sheet panel is carried out in a bending stage caused at an inner side of the sheet panel. The manufactured slot pipe is removed through application of pressing force in smaller areas formed in the center, where the pressing force acts outwardly on the blank mold. An independent claim is also included for a device for manufacturing cylindrical slot pipes from thick sheet panels.
IPC 8 full level
B21D 5/01 (2006.01); B21C 37/08 (2006.01)
CPC (source: EP)
B21C 37/0815 (2013.01); B21D 5/015 (2013.01)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2529849 A2 20121205; EP 2529849 A3 20170315; EP 2529849 B1 20210310; BR 102012012992 A2 20131105; BR 102012012992 B1 20210316; CN 102806245 A 20121205; CN 102806245 B 20160601; JP 2012250285 A 20121220; JP 6188282 B2 20170830; RU 2012122452 A 20131210; RU 2505370 C1 20140127
DOCDB simple family (application)
EP 12003900 A 20120518; BR 102012012992 A 20120530; CN 201210175367 A 20120531; JP 2012124628 A 20120531; RU 2012122452 A 20120530