Method and apparatus for producing holes in thermoplastic...

Details Method and apparatus for producing holes in thermoplastic... Method and apparatus for producing holes in thermoplastic...

B - Operations, Transporting

29

C

B29C 59/02 (2006.01) B26F 1/10 (2006.01) B29C 59/04 (2006.01) D21F 3/08 (2006.01)

Patent

CA 2053321

METHOD AND APPARATUS FOR PRODUCING HOLES IN THERMOPLASTIC TAPES FOR THE PAPER INDUSTRY ABSTRACT OF THE DISCLOSURE A method and an apparatus fox producing holes in elastomeric and/or thermoplastic tapes for the paper industry, particularly in the jackets of rolls. Heated rams with cross sections identical to the contour of the holes to be produced and the temperature of the free ends of which rams is at least equal to the vaporization temperature of the tape material are pressed into the tape material to form holes. The rams project from a rotating support body or from a reciprocating one.

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