Sensing system and method for plastic injection molding
US4131596A · kind A · utility
67Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1977 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | Aug 22, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/7653
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for providing a signal that measures the extent of the separation of injection mold dies during the injection of plastic material into the mold cavity and uses this signal to reduce the possibility of flash damage to the mold dies by decreasing the pressure clamping the molds together if the separation exceeds a value that is known to cause flash and/or further utilizes the signal to alter the rate of injection of plastic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.