Method and apparatus for cutting plastics materials

Details Method and apparatus for cutting plastics materials Method and apparatus for cutting plastics materials

B - Operations, Transporting

26

F

164/1

B26F 3/12 (2006.01) B29C 17/14 (1980.01)

Patent

CA 1048921

METHOD AND APPARATUS FOR CUTTING PLASTICS MATERIALS ABSTRACT OF THE DISCLOSURE Apparatus for cutting a body of rigid plastics foam material, such as polyurethane or poly-isocyanurate, comprises a bed for supporting the body and two sets of parallel cutting elements adapted to oscillate longitud- inally out of phase with each other. The cutting elements may consist of helically twisted ribbons of narrow strip material, twisted in such a way that the handedness of the twist varies at regular intervals along each element. The elements are heated to a temperature below the fusion temperature of the plastics material, and are passed through the body to sever it into a number of slabs.

282569

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