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[CN201720247122.X] Double-control locking pressure device for air cushion of press
[CN201720247122.X] Double-control locking pressure device for press air cushion Title: Double-control locking pressure device for press air cushion Application number: CN201720247122.X Applicant: Hunan Yuanchuang Machinery Co., Ltd. Application date: 2017-3-14 Patent type: Utility model The utility model discloses a double-control locking piston rod pressure device for press air cushion, which includes: a locking cylinder, the piston and the locking cylinder, the cylinder body is provided with a piston cavity, the piston is accommodated in the piston cavity, the piston divides the piston cavity into an upper cavity and a lower cavity, the lower end of the piston rod is connected with the piston, and the upper end of the piston After passing through the oil cylinder body, it is connected with the press air cushion, and the oil cylinder body is also provided with an oil circuit, which is connected with the upper cavity and the lower cavity; an oil circuit opening and closing device, so that the oil circuit opening and closing device is used to control the opening and closing of the oil circuit. The utility model can realize the double-control locking pressure conversion function of the air cushion of the press, and is timely and reliable.
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