Toggle injection molding clamping force monitor

Details Toggle injection molding clamping force monitor Toggle injection molding clamping force monitor

1986-03-24

1987-08-11

Nozick, Bernard

Plastic article or earthenware shaping or treating: apparatus

With indicator, signal, recorder, illuminator, or inspection...

For molding temperature or pressure

425150, 425173, 425593, 425595, B28B 1700

Patent

active

046858768

ABSTRACT:
The mold clamping force exerted in a toggle plastic injection molding machine is measured by determining the amount the tie rods stretch. A link is clamped on a lower tie rod near the backing platen and supports a contact that is adjustable in the direction of tie rod stretch. The contact in turn engages a probe portion of a sensor that is secured to the machine base. The contact, hence the sensor probe, move the amount that the tie rod stretches at the point of clamping. The motion is directly proportional to clamping force which latter can then be adjusted by operating the adjusting nut drive motor a suitable amount.

REFERENCES:
patent: 3108470 (1963-10-01), Martin
patent: 3402472 (1968-09-01), Riley
patent: 4088432 (1978-05-01), Farell
patent: 4301100 (1981-11-01), Farrell
patent: 4345890 (1982-08-01), Hemmi et al.
patent: 4370116 (1983-01-01), Groom
"Methods for Monitoring and Control of Clamp Tonnage on Toggle Machines" by Dennis K. Rideout.

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