Compensation for differing heights of different molds clamped between the mold-clamping plates of an injection-molding machine
US4195048A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Sep 11, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/2624
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An absolute-coded angular position indicator coupled to the shiftable one of two mold-clamping plates, produces a position signal indicating the position of the shiftable plate. This signal is applied to one input of a subtractor, whose output signal is displayed on a numerical display. The subtracting input of the subtractor receives a corrective signal from a manually set decades switch arrangement. When no mold is present between the clamping plates and the latter are pressed into direct contact with each other, the displayed numerical value is zero. When a mold is clamped between the plates, an non-zero value is displayed, and the set-up technician sets the decades switch arrangement to the displayed value. As a result the displayed value goes to zero. The output signal of the subtractor is furnished to control elements which must control machine operations in dependence upon the height of the particular mold being employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.