Seam adjusters

Details Seam adjusters Seam adjusters

B - Operations, Transporting

21

D

B21D 51/32 (2006.01)

Patent

CA 2437581

A seam adjuster for ensuring that a tight seam is formed between a can end and a can body. The seam tool (32) is mounted via bearing (34) on the seam lever (31), the centre of the bearing being eccentric to its outside diameter. The bearing has an external thread (35) which mates with a complementary worm mechanism (36). By virtue of the eccentricity, rotation of the worm mechanism rotates the bearing and moves the seam tool radially for adjusting seam tightness. Seam tool height is set by a spacer (33) or shim which is readily interchangeable for varying the seam tool height without affecting seam tool tightness.

L'invention concerne un ajusteur de joint permettant de garantir qu'un joint étanche est formé entre une extrémité de canette et un corps de canette. L'outil à joint (32) est monté via un support (34) sur le levier de joint (31), le centre du support étant excentré par rapport à son diamètre extérieur. Le support présente un filetage extérieur (35) correspondant à un mécanisme de ver (36). Grâce à l'excentricité, la rotation du mécanisme de ver fait pivoter le support et déplace l'outil à joint radialement afin d'ajuster l'étanchéité du joint. La hauteur de l'outil à joint est réglée par écarteur (33) ou cale d'épaisseur que l'on peut remplacer facilement afin de faire varier la hauteur de l'outil à joint sans affecter l'étanchéité de l'outil à joint.

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