COMPRESSION MOULDING APPARATUS AND METHOD FOR FORMING PLASTICS OBJECTS

摘要

A method comprises compression-moulding plastics to obtain objects (9) by mould means (2), said mould means (2) being provided with punch means (11; 111) and with die means (31, 32; 131, 132), said die means (31, 32; 131, 132) comprising a die body (31; 131) and a bottom element (32; 132) mutually cooperating to define a portion of a forming cavity, said moulding comprising reciprocally moving said die means (31, 32; 131, 132) and said punch means (11; 111), there being furthermore provided driving said bottom element (32; 132) independently of said punch means (11; 111) and of said die means (31, 32; 131, 132); an apparatus for compression-moulding plastics to obtain objects (9) comprises die means (3) provided with die-body means (31; 131) and with bottom-element means (32; 132) mutually cooperating to define a portion of forming cavity means, fluid-operating means (24) arranged to reciprocally move said bottom-element means (32; 132) and said die-body means (31; 131) and passage means arranged to convey said fluid-operating means, said passage means comprising throttle means (27).