Method and apparatus for resistance welding of cans

US4399343A · kind A · utility

Assignee

• Fael S.A. · CH

Inventors

• Jakob Muller · Haltern am See, DE
• Peter Schreiber · Jena, DE

Key dates

• Filing date: Apr 13, 1981
• Grant date: Aug 16, 1983
• Expiry date: Apr 13, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K11/063
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A welder for welding side seams of tubular bodies. The welder has a body feed in the form of a single conveyor which serves to receive bodies at regular intervals from a rounded unseamed tubular body supply and to move the bodies into a welding head nip with the bodies being initially widely spaced and then the gap between a body in the welding head and a trailing body being rapidly reduced so that the leading edge of a following body enters into the nip at the same moment as the trailing edge of a leading body begins to depart from the nip, with the adjacent edges of adjacent bodies being in substantially touching but positively spaced relation.