Method of operating an injection-molding machine with mold-prote

Details Method of operating an injection-molding machine with mold-prote Method of operating an injection-molding machine with mold-prote

1993-06-15

1995-06-20

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

264 405, 425138, 425150, 425590, B29C 4564, B29C 4584

Patent

active

054259053

ABSTRACT:
In the case of an injection-molding machine with mold-protecting device, every time the machine is started up a predetermined number N of injection-molding cycles are run at a greatly reduced machine speed in order to allow the mold-protecting device to be operated with increased sensitiveness during these cycles. If no trouble occurs during the said N cycles, the machine speed is increased to operating speed, either abruptly or continuously, and the mold-protecting device is either switched off or operated thereafter with adapted sensitivity.

REFERENCES:
patent: 3564657 (1971-02-01), Aoki
patent: 4131596 (1978-12-01), Allen
patent: 4696632 (1987-09-01), Inaba
patent: 5034168 (1991-07-01), Matsumoto et al.

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