Compensation for differing heights of different molds clamped be

Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting

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Details

100 43, 264 405, 264328, 425129R, 425135, 425139, 425169, 425171, 425182, 425190, 425195, B29C 306, B29F 114

Patent

active

041950488

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.

REFERENCES:
patent: 3028531 (1962-04-01), Heiberger et al.
patent: 3819774 (1974-06-01), Eggenberger et al.
patent: 3841142 (1974-10-01), Aisuta et al.
patent: 3941534 (1976-03-01), Hunkar

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