Process and apparatus for the edge knurling of a...

Details Process and apparatus for the edge knurling of a... Process and apparatus for the edge knurling of a...

B - Operations, Transporting

29

C

18/1056

B29C 67/00 (2006.01) B29C 33/02 (2006.01) B29C 59/04 (2006.01) B29C 65/00 (2006.01)

Patent

CA 1038121

A B S T R A C T The edge knurling of a thermoplastic film is carried out by means of a knurling wheel that comprises a solid outer cylindrical rim having an exterior knurling pattern. The rim is connected to the hub of the wheel by means limiting the heat transfer from the rim to the hub, and the heating means is spaced from the rim for heating a peripheral portion Or the rim without contact therewith, and at a position that is remote from the point or zone of contact of the knurling wheel with the film.

200395

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