| 摘要 |
A high-speed automatic hydraulic pressing system which can effectuate a high-speed and high-pressure operation of pressing materials with an automatical repetition, employing a low-powered low-pressure oil pump. Said system comprises a low-pressure oil pump, an oil circuit for supplying oil to a pressing mechanism and an oil pressure intensifying mechanism which can work in synchronous therewith to generate a high-pressure oil. The flow of oil is switched over by a timer at an oil pressure direction changing valve provided on the oil circuit to act on the pressing mechanism and the intensifying mechanism to simultaneously restore a pressing piston and an intensifying piston to the starting position. Then, a pressure switch is urged to switch the direction changing value back to the starting neutral position to complete one cycle of operation. Thus the cycle being repeated automatically, the system according to the present invention can effectively and continuously press materials at high-speed.
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