| 摘要 |
PURPOSE: A pressure regulator of a forming press is provided to injection-mold a resin molding in a semiconductor chip conveniently by regulating the pressure in forming, and to reduce costs and failure rate by minimizing a hydraulic system. CONSTITUTION: A pressure regulating apparatus is composed of a fixed end(141) formed at a pressurized plate(140); a driving motor(300) fastened in the fixed end with pulleys(310,420) in the lower part; an idling screw(400) idling in actuating the driving motor with being assembled with a fixing shaft(410) in the middle of the pressurized plate, and having the pulley connected to a driving belt(320) to receive the driving force from the driving motor; a nut(500) combined with the idling screw, and integrated with a moving link(510); a turning link(600) connected to the end of the moving link in the middle, to a fixed end of a driving plate(130) in the upper part and to the fixed end of the pressurized plate in the lower part to move the driving plate up in moving the nut up; and a pressure piston(700) connected to a hydraulic unit(200) to combine upper and lower molds(110,120) by moving the driving plate up in lifting the lower mold by the turning link. The resin molding is formed in a semiconductor chip conveniently by regulating pressure with lifting the lower mold mechanically and hydraulically.
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