B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
327/90, 327/99
B21D 51/38 (2006.01) B23K 11/00 (2006.01)
Patent
CA 1256512
ABSTRACT OF THE DISCLOSURE: Sheet-metal members, particularly tear-open can members, can be moved rhythmically, one behind the other, through a welding station by a sheet-metal conveyor and located in a defined position in the welding station by a positioning device. A prestamped tongue can be punched- off from a sheet-metal strip each time by a punch over one of a plurality of receivers on a tongue conveyor. The receivers can be moved in succession out of the range of action of the punch into the welding station as a result of which the tongues can each be laid against a sheet- metal member in the welding station in time with the sheet- metal conveyor. The punch for punching off the tongues is preceded by a prestamping device which impresses markings in the sheet-metal strip at fixed distances from the tongues. Disposed between the prestamping device and the punch is a drive member which engages the markings in the sheet-metal strip and is connected to the tongue conveyor by a transmis- sion. The punch is connected to a centring device which engages in at least one marking adjacent to it in the sheet- metal strip, during the punching off of a tongue. In this manner, the tongues are each particularly accurately posi- tioned in relation to the associated sheet-metal member.
521717
Elpatronic Ag
Robic Robic & Associes/associates
LandOfFree
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