Device for operating an injection molding machine

Details Device for operating an injection molding machine Device for operating an injection molding machine

1997-05-13

1999-06-15

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

With direct application of magnetic force to manipulate...

425595, 425DIG33, B29C 4564

Patent

active

059120207

ABSTRACT:
A process for operating an injection molding machine with a stationary die plate on a machine bed and a movable die plate, which die plates are lockable during an injection process by magnetic closing elements, the process including the steps of moving the movable die plate toward the stationary die plate to close a mold, simultaneously moving a structural component part enclosing one of the die plates toward one end to a distance of a few millimeters from the other of the die plates, locking a drive of the movable die plate, activating electromagnets arranged at the structural component part enclosing the one die plate by supplying current, adjusting generation of electromagnetic closing force relative to energy level and duration in dependence on an injection process, and at the end of an injection cycle, moving the movable die plate and the structural component part enclosing the one die plate into an end position in which a free space is formed, so that the free space above the machine bed between the die plates can be accessed freely in an open operating state of the injection molding machine.

REFERENCES:
patent: 3091810 (1963-06-01), Turner
patent: 3887312 (1975-06-01), Seary
patent: 4385877 (1983-05-01), Tanabe
patent: 5322430 (1994-06-01), Kasai et al.
patent: 5352394 (1994-10-01), Fulita et al.

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