Plastic magnet injection molding machine

Details Plastic magnet injection molding machine Plastic magnet injection molding machine

1985-03-29

1987-04-28

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

With direct application of magnetic force to manipulate...

264 24, 264108, 264DIG58, 4251748R, 425190, 425DIG33, B29C 3332

Patent

active

046610537

ABSTRACT:
A plastic magnet injection molding machine comprises a stationary platen side and a movable platen side block each made of a ferromagnetic material and fixed to or integrated with a stationary and a movable platen, a stationary platen side and a movable platen side exciting coil arranged at the outer circumferences of respective ferromagnetic blocks, and a stationary platen side and a movable platen side cover each made of a non-magnetic material and attached to respective platens so as to surround the outer circumferences of the respective exciting coil and ferromagnetic block. The stationary platen side ferromagnetic block and non-magnetic cover have, respectively, surfaces each being in opposition to the movable platen and being flush with each other in a single plane parallel with the stationary platen. The movable platen side ferromagnetic block and non-magnetic cover have, respectively, surfaces each being in opposition to the stationary platen and being flush with each other in a single plane parallel with movable platen. Both of the single planes are formed with bolt holes for fitting stationary and movable molds, respectively.

REFERENCES:
patent: 3555621 (1971-01-01), Hara
patent: 4150712 (1979-04-01), Dussart
patent: 4441875 (1984-04-01), Saito et al.
patent: 4540359 (1985-09-01), Yamazaki

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