Mould for manufacturing boots of thermoplastic materials

Details Mould for manufacturing boots of thermoplastic materials Mould for manufacturing boots of thermoplastic materials

B - Operations, Transporting

29

C

18/83

B29C 45/16 (2006.01) B29D 35/08 (2010.01)

Patent

CA 1267259

ABSTRACT An injection-mould serves to manufacture boots of thermoplastic material, the boot upper having a different colour from the rim of the upper and the walking sole, which both have the same colour. For the injection of the upper and for the subsequent simultaneous injection-moulding of the upper rim of the upper and the walking sole to the injected upper, the injection-mould has a last for receiving a textile sock, a base die having a casting bore for injecting the walking sole, a further base die having a casting bore for injecting the upper and two lateral parts. The lateral parts have wedge elements, mould elements and cover elements. In their closed position for injecting the upper rim of the upper, the lateral parts accommodate two casting channels (not shown) which are connected to the casting bore of the base die. During injection-moulding of the upper, the wedge elements the mould elements, and the cover elements are operated so as to cover the cavity for the upper rim of the upper . During moulding of the upper rim these same elements are operated so as to open the cavity. This cavity is then connected to the casting channel of the base die.

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