Mold for footwear sole

Details Mold for footwear sole Mold for footwear sole

B - Operations, Transporting

29

D

18/82

B29D 35/00 (2010.01) B29C 33/26 (2006.01) B29C 45/04 (2006.01) B29C 33/00 (2006.01) B29C 45/00 (2006.01)

Patent

CA 1174814

ABSTRACT OF THE DISCLOSURE A book mold for producing a plurality of flat footwear soles simultaneously includes opposed top and bottom molds, each of which includes a pair of mold cavities; and an intermediate mold defined by a plate connected to one end of the bottom mold by a piano hinge. The intermediate mold is closed on the bottom mold, and the top mold is clamped on the intermediate mold using a clamping cylinder. Thermoplastic material is injected into the mold cavities through a port defined by a square slot in the intermediate mold, resulting in a large sprue in the intermediate mold. The soles remained attached to the intermediate mold, and when the mold is opened all soles are removed rapidly.

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