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Jun Chung Shing pressure switch JCS-02N |
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Product name：Jun Chung Shing pressure switch JCS-02N |
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Jun Chung Shing pressure switch JCS-02N How to order: 
Jun Chung Shing pressure switch JCS-02H, Jun Chung Shing pressure switch JCS-02N Jun Chung Shing pressure switch JCH-02-1  Application of pressure switch: used for safety protection, controlling sequential action of actuator, opening and closing of pump, unloading of pump.
Note: the pressure switch must be placed where there is a significant change in pressure to output electrical signals. If the pressure switch is put on the oil return circuit, the pressure will not work because the oil return circuit is directly connected to the oil tank.
Usage of pressure switch:
When first used in security, set the pressure switch at one end of the clamping hydraulic cylinder, hydraulic pump after the start, first of all, the workpiece clamping, the clamping the right chamber of hydraulic cylinder pressure, when pressure rise to relay setting, pressure switch action, send electrical signals to make 2 ya electricity, so the cutting feed cutting hydraulic cylinder. The normally open contact of the pressure switch microswitch is always closed during machining. If the workpiece is not clamped, the pressure switch 2 is disconnected, and then the 2YA power is cut off, the cutting hydraulic cylinder immediately stops feeding, so as to avoid the workpiece is not clamped and cutting accident.
In fact, it is used to control the sequential action of the executive element. After the hydraulic pump is started, the first 2YA is energized, and the left cavity of the hydraulic cylinder is fed with oil, pushing the piston to move to the right. When it encounters the limit device (or dead stop iron), the pressure of the system rises, and the pressure switch sends out an electrical signal to energize the 1YA. The high-pressure oil enters the left chamber of the hydraulic cylinder, pushing the piston to move right. At this moment, if 3YA is also energized, the piston of the hydraulic cylinder moves rapidly to the right; If the power is cut off at 3YA, the piston of the hydraulic cylinder moves to the right at a slow speed, which is regulated by the throttle valve. When used for hydraulic pump unloading again, the pressure switch is not to control the hydraulic pump to stop rotating, but to control the two-way solenoid valve, which will flow the pressure oil output by hydraulic pump 5 back to the oil tank for unloading.
Finally used for hydraulic pump opening and closing, there are two hydraulic pumps, high pressure small flow pump, low pressure large flow pump. As the piston drops rapidly, both pumps pump out pressure oil. When the piston rod of the hydraulic cylinder is pressed against the workpiece, the pressure switch will start to act under the action of pressure oil, touch the micro switch, disconnect the normally closed contact and stop the hydraulic pump. Slow down the speed of the hydraulic cylinder and reduce the power consumption during the processing.
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