Water-control type water-return secondary stop safety protector for hydraulic compressor
A technology of safety protection device and hydraulic press, which is applied in engineering safety devices, mechanical equipment and other directions, can solve the problems of hidden dangers, endangering the life safety of people between the main slider and the blanking slider, gushing out, etc., to solve the problem of safety. hidden dangers and the effect of increasing the reliability of safety protection
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[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings:
[0019] In the present invention, a high pressure solenoid valve F1 (hereinafter referred to as main solenoid valve F1) is installed in series on the return pipe of the main distributor of the hydraulic press, and a high pressure solenoid valve F2 ( Hereinafter referred to as the side-holding solenoid valve F2), the high-pressure solenoid valve is in the open state of the water circuit when it is energized, and cut off when the power is off (the above structure is not visible in the drawings, but it is easy to understand). Such as figure 1 As shown, the power input terminal of the main solenoid valve F1 is connected in series with the normally open switch KA2 of the corresponding intermediate relay KA2 and then connected to the power line, and the power input terminal of the side-holding solenoid valve F2 is connected to the corresponding normally open switch of ...
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