Mold closing unit

Details Mold closing unit Mold closing unit

2006-02-28

2006-02-28

Mackey, James P. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

C425S589000, C425S451400

Reexamination Certificate

active

07004746

ABSTRACT:
The novel solution provides a closing part comprising an electromechanical drive for a CD injection molding machine having a working stroke and a servicing stroke. The entire mold closing unit is characterized by the combination of a short-stroke crank mechanism which is operated by an electric motor and which is provided for the working stroke and of a central electromotive column-type nut drive for the servicing stroke. According to the invention, synchronous motors or asynchronous motors are used with corresponding servo boosters to realize servo axles. The central column drive is used as a control element of the closing force control, together with a force sensor for detecting the closing force, as an actual value transmitter and as a control device.

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English language Abstract of JP Publication No. 01 249410, Patent Abstracts of Japan, vol. 13, No. 593, published Oct. 1989.

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