EP 1005927 A3 20010711 - Method and device for the threading of tubes in a drawing machine
Title (en)
Method and device for the threading of tubes in a drawing machine
Title (de)
Vorrichtung und Arbeitsverfahren zum Einfädeln von Rohren in eine Ziehmaschine
Title (fr)
Procédé et dispositif pour l'enfilage de tuyaux dans une machine d'étirage
Publication
Application
Priority
DE 19856479 A 19981202
Abstract (en)
[origin: EP1005927A2] Tube or rod (1) insertion equipment, comprises a clamping sleeve (6) fitted on the workpiece leading end tip and engaged by clamping jaws (10) of drawing machine crawler tracks. Tube or rod (1) insertion equipment, for a drawing assembly with circulating chain pairs having clamping jaws for gripping the outer periphery of the workpiece and for continuously pulling the workpiece through a drawing die (3), comprises a removable gripping device (5) in the form of a clamping sleeve (6) pushed onto a drawing tip (2) formed at the tube or rod leading end. The clamping sleeve has several internal clamping elements (7), which automatically engage the tip periphery in the drawing direction, and engages in the interspace between two adjacent clamping jaws (10) of each chain (9) for pulling by the clamping jaws. An Independent claim is also included for a method of inserting a tube or rod into a drawing assembly using the above apparatus.
IPC 1-7
B21C 1/16; B21C 5/00; B21C 1/30; B21C 1/32; B21C 1/22; B21C 1/28
IPC 8 full level
B21C 1/16 (2006.01); B21C 1/20 (2006.01); B21C 1/30 (2006.01); B21C 1/32 (2006.01); B21C 5/00 (2006.01)
CPC (source: EP)
B21C 1/16 (2013.01); B21C 1/20 (2013.01); B21C 1/30 (2013.01); B21C 1/32 (2013.01); B21C 5/00 (2013.01); B21C 5/003 (2013.01)
Citation (search report)
- [A] US 5809823 A 19980922 - BLANCK HANS-GEORG [DE]
- [A] EP 0826438 A2 19980304 - MANNESMANN AG [DE]
- [A] DE 19703878 A1 19971113 - BUELTMANN MONIKA [DE]
- [A] WO 9630136 A1 19961003 - TREFIMETAUX [FR]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1005927 A2 20000607; EP 1005927 A3 20010711; DE 19856479 A1 20000608
DOCDB simple family (application)
EP 99250412 A 19991123; DE 19856479 A 19981202