Apparatus for molding outer and inner soles onto shoe uppers

Details Apparatus for molding outer and inner soles onto shoe uppers Apparatus for molding outer and inner soles onto shoe uppers

1987-11-04

1989-03-07

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to form or reshape preform

36 30R, 264244, 264511, 425119, 4251292, 4254051, 425576, B29C 4516

Patent

active

048101788

ABSTRACT:
An apparatus for molding an outer sole of elastomer and an inner sole of a mixture of isocyanate and a polyol reacting into polyurethane to shoe uppers includes a vertically movable upper cross block supporting a pivotably mounted mold carrier with a heatable first mold part at one end for the molding of outer soles, and a lower, vertically adjustable cross block has a heatable plate in contact with the first mold part. The mold carrier is pivoted such that the heatable first mold part containing the molded outer sole forms a mold cavity for an inner sole together with laterally movable mold elements and a last supported shoe upper. A vertically adjustable last body has a transfer plate which transfers the molded outer sole from the heatable first mold part for cooling before the molded outer sole is transferred back to a cooled mold part at the opposite end of the mold carrier, after which the last supported shoe upper is rotated to confront the outer sole and the lateral mold elements are closed to define a cavity for the molding of the inner sole.

REFERENCES:
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patent: 3443279 (1969-05-01), McIlvin et al.
patent: 3496608 (1970-02-01), Eldred et al.
patent: 3667883 (1972-06-01), Ludwig et al.
patent: 3915608 (1975-10-01), Hujik
patent: 4090831 (1978-05-01), Hujik
patent: 4123493 (1978-10-01), Schilke et al.
patent: 4302416 (1981-11-01), Rudolf et al.
patent: 4608724 (1986-09-01), Stengelin
Publication No. DESMA 521S-526S, Klockner-Ferromatik Desma GmbH, entitled "Injection Molding Machine for Direct Attachment of Soles", no date available.

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