US 4,439,123 AGranted

Injection molding machine

AssigneeKabushiki Kaisha Kobe Seiko Sho

InventorsTsutomu Sano, Naoki Takeuchi, Masanobu Kurumaji

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Abstract

An injection molding machine having in spaced positions at least a first injecting station for injecting a plasticized resin material into a die cavity and a second station for further treating the injected resin material concurrently and in relation with the injecting operation at the injecting station, the molding machine including a die carriage movable to and from the first and second stations and fixedly supporting thereon at least a lower die of an injection molding die set; a track for guiding movements of the die carriage to and from the respective stations; a carriage clamp for fixing the die carriage at the respective stations; a die closing mechanism provided at each station for releasably clamping an upper die against the lower die; and a drive mechanism for moving the die carriage sequentially to the first and second stations.

Claims19

Dependent claims

An injection molding machine comprising;

(a) a first station for injecting a plasticized material into a die cavity, said first station including a molding machine and a first die half which serves exclusively in said first station;
(b) a second station for joining facing sheets to the articles produced by said first station, said second station including a stamp press and a second die half which serves exclusively in said second station;
(c) at least two third die halves, each of which is sized and shaped to cooperate with both said first and said second die halves;
(d) a third station for trimming excess facing sheet material from the articles produced by said second station, said third station including a trimming cutter which conforms to said third die halves;
(e) at least two die carriages movable among said first, second, and third stations, each of said die carriages fixably supporting thereon one of said third die halves;
(f) means for guiding movement of said carriages between and through said first, second, and third stations;
(g) carriage clamp means at each of said first, second, and third stations for selectively fixing said die carriage therein;
(h) first closing means at said first station for releasably clamping said first die half and one of said third die halves together;
(i) second closing means at said second station for releasably clamping said second die half and one of said third die halves together;
and
(j) third closing means at said third station for moving said trimmer cutter into position to trim excess facing sheet material from the article produced by said second station.

8 more elements

Dependencies are inferred from the claim text.