Method and device for forcibly inserting drop into compression molding machine, and molding die follow-up type method and device for supplying drop
US9492949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2004 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/3494
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
When compression molding is performed continuously, lumps of molten synthetic resin (drops), which are supplied by extrusion, are continuously, accurately, and rapidly inserted into plurality of compression molding dies which are rotatingly movable. A method and device for continuously supplying drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings. At that time the holding mechanism on the rotary-and movable type drop supply is made to approach the rotating molding die and the rotation path of the holding mechanism is made to overlap with that of the molding die within a determined area to make the movement of the holding mechanisms follow that of the molding die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.