Injection molding machine diagnostic system
US4421467A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1982 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Mar 11, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2037/906
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for diagnosing fault conditions in an automatic or semiautomatic machines, such as injection molding machines. The diagnostic system comprises a display panel having a plurality of lights or other visual indicators grouped in sets for the respective subsequences of the machine cycle, and if no fault conditions occur and the machine cycles properly, the sets of lights will be energized in succession so that the operator is continuously apprised of the condition of the machine. If a fault condition should occur, one or more of the lights in the set corresponding to the subsequence that the machine is presently implementing will not be energized, and the pattern of energized lights in that set is coded to the particular fault condition that has occurred. By correlating the code with a fault code listing, the operator can quickly identify the location and nature of the malfunction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.