The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1976
Filed:
Sep. 16, 1974
Wilhelm Hortig, Auerbach, DT;
KM Engineering AG, Basel, CH;
Abstract
A mechanism for centering metal hollow bodies during a drawing operation is disposed in front of a die of an ironing tool. The metal hollow bodies each have a flared section along the edge zone of its open face. The mechanism comprises at least two centering-cheeks adapted to the circumference of the metal hollow body. The centering-cheeks are movably supported for sliding movement within a plane extending transversely to the tool axis and in any direction towards or away from the tool axis. Mechanical control means effect periodic opening motion of the centering-cheeks in any direction away from the tool axis in dependence upon the motion of a draw punch. The control means are effective to cause the two centering-cheeks to embrace the hollow body centeringly after it has been thrust into the die by the draw punch and at at least a fraction of its overall height. The control means includes means for withdrawing the centering-cheeks away from the hollow body at a time just before the flared section passes thereby and by at least the radial dimension of the flared section from the circumference of the hollow body.