Method of injection-moulding onto a preformed web

Details Method of injection-moulding onto a preformed web Method of injection-moulding onto a preformed web

B - Operations, Transporting

29

C

18/683

B29C 45/14 (2006.01)

Patent

CA 1096122

ABSTRACT OF THE DISCLOSURE: In a method of injection moulding articles of plastics material onto a preformed web inserted into the mould, the web is held under substantially constant tension during the closing of the mould, between a pair of clamps, the proximal clamp being fixed relative to the mould and the distal clamp free but bearing a load to furnish the desired tension in the web. The load may be imposed by a weight attached to the distal clamp, conveniently by means of an electromagnet.

286660

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