Blow-molding press
US5711974A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C33/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a press for blow-molding. This press (10) comprises a frame (11) on which there are mounted two movable plates (12, 13), each supported a half-mold (14, 15) and actuated by a mechanism for opening and closing the mold, which is formed of the two half-molds. Each of the movable plates is attached to a beam mounted on two axles (19, 20) so that it slides along these axles in opposite directions. The opening mechanism essentially consists of an actuator, two transmission blocks (29) and two pairs of connecting rods (33) connected to said movable plates. When the actuator drives the transmission blocks (29) in the direction of arrow A, the rods cause the mold to close. When the transmission block turns in the direction of arrow B, displacement of the rods causes the mold to open. The invention has applications for high speed molding presses in which the mold must be opened in rapid cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.