Transporter for injection-molded parts or inserts therefor
US4368018A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1981 |
| Grant date | Jan 11, 1983 |
| Priority date | — |
| Expiry date | Oct 14, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
One of two relatively movable platens of an injection-molding machine carries a housing in which a cylindrical cam with a generally helicoidal groove is rotatably lodged, the cam being rigid with a shaft disposed parallel to the direction of platen motion. A cam follower on the inner surface of that housing engages in the helicoidal groove whereby the shaft is rotated during relative reciprocation of the platens; a hub idling on the opposite shaft end, supported by a control box on the other platen, can be positively coupled to the shaft by a clutch in this box so as to rotate therewith. An elbow coupled with that hub, directly or through a carriage having a rack in mesh with a gear fixed to the hub, supports a pick-up head which in the engaged state of the clutch enters between two separated mold portions respectively carried by the platens for extracting a freshly molded workpiece from the mold or, possibly, placing an externally supplied insert in an empty mold cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.