Hydraulic control system and hydraulic control method of front blank pushing cylinder of perforating machine
A hydraulic control system and punching machine technology, applied in the field of punching machine control, can solve problems such as difficulty in finding faults, large hydraulic station capacity, and excessively large valve block 8, so as to improve shock vibration and slight pause, low cost, The effect of reducing the amount of use
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[0027] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the invention is capable of various changes in different embodiments without departing from the scope of the invention, and that the description and illustrations therein are illustrative in nature and not limiting. this invention.
[0028] Such as figure 2 As shown, the present invention is a hydraulic control system for the forward cylinder of the piercing machine, which includes a proportional valve 1 and two check valves 2 and 3 . The applied punching machine forward cylinder 4 also includes a rodless chamber 41 and a rod chamber 42, and the hydraulic oil pipe includes a pressure oil pipe P and an oil return pipe T. Connect the pressure oil pipe P and oil return pipe T to the proportional valve 1, and then connect the proportional valve 1 to control the rodless chamber 41 through the first oil pi...
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