B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/76 (2006.01) B29C 45/38 (2006.01) B29C 45/40 (2006.01) B29C 45/56 (2006.01) B29C 45/77 (2006.01)
Patent
CA 2242967
An apparatus has servo motors used for driving sources in processes of weighing blended resin, of injecting weighed resin into a die cavity, of opening and closing dies, of gate cutting after filling weighed resin into the die cavity, of ejecting the molding after forming, and of removing the molding. According to this configuration, because all the motions of injection operation are controlled by servo motors, the timing, injection speed, pressurizing speed, pressurizing pressure, and all others can be freely controlled, and not only the transferability of fine protrusions and recessions formed on the inner surface of the die cavity can be remarkably improved, but also the cycles can be increased because complex motions can be carried out by servo motors. In particular, because servo motors are used for driving sources of ejection of molding after forming and removal of molding, there is no variation in repetitive response accuracy in motion, product removal timing by the product removing equipment can be reduced to 0.01 second or less, and ultimately higher cycle is able to be achieved.
Hara Yoshiaki
Hirayama Nobuyuki
Taniguchi Yoshiya
Marks & Clerk
Sony Disc Technology Inc.
Toyo Machinery & Metal Co. Ltd.
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