Method of and apparatus for manufacturing molded slide fastener

Details Method of and apparatus for manufacturing molded slide fastener Method of and apparatus for manufacturing molded slide fastener

1984-11-14

1987-04-21

Silbaugh, Jan

Plastic article or earthenware shaping or treating: apparatus

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

Female mold type means

264 37, 425122, 425145, 425215, 425545, 425814, B29C 4514

Patent

active

046593012

ABSTRACT:
An apparatus for forming a slide fastener chain includes an injection molding machine with a mold, a sprue and runner cutter adjacent the mold, a pelletizer adjacent to the cutter for reducing the sprues and runners to particle size which are delivered to a first hopper, a second hopper for fresh molding materials, a mixing hopper for blending the used and fresh molding materials to be fed to the mold, and controls for regulating the proportions of used and fresh materials.

REFERENCES:
patent: 3976730 (1976-08-01), Cushing
patent: 4226577 (1980-10-01), Sawada
patent: 4321027 (1982-03-01), Stoehr et al.
patent: 4340347 (1982-07-01), Robertson
patent: 4451421 (1984-05-01), Jones
patent: 4505659 (1985-03-01), Chijiishi et al.
Modern Plastic Encyclopedia, 1981-1982, pp. 356 and 391.
"Automatic Scrap Recycling", pp. 904-913, J. Boyden.

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