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The working principle and installation and debugging instructions of Jinlun hydraulic cold press
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The working principle and installation and debugging instructions of Jinlun hydraulic cold press
There are many types of hydraulic woodworking cold presses on the market, usually screw type and hydraulic type. The hydraulic cold press has the characteristics of low noise and fast lifting speed. When the hydraulic cold press is in use, it is required to perform equipment and debugging operations to ensure that the cold press is debugged to a good working condition. It is often received these days Some customers have left messages to ask questions about this aspect. Today, the editor will lead us to follow our operators to learn.
The working principle of hydraulic cold press:
The hydraulic press requires the master cylinder to complete the basic operation cycle of fast down, deceleration limit, pressure holding delay, pressure relief return, and intermittent (any orientation) according to the restricted process, and the pressure, speed and holding time need to be able to be scheduled. The ejection hydraulic cylinder is mainly used to eject the workpiece, and it is required to complete the ejection, retraction, and intermittent actions. For example, when the thin plate is stretched, auxiliary actions such as lifting, intermittent and pressure return of the ejector hydraulic cylinder are required. Sometimes it is necessary to compress the blank with a blank holder to avoid wrinkles around it.
The hydraulic press takes the larger pressure (tonnage) output by the main actuator (master cylinder) in the main motion as the main specification of the hydraulic press, and has been serialized. The tonnage of the ejector cylinder is usually 20%-50% of the tonnage of the main cylinder. The ejector cylinder of the extruder can choose about 10% of the primary tonnage. The tonnage of the blanking cylinder of the double-acting hydraulic drawing press is generally about 60% of the tonnage of the drawing cylinder.
The speed of the master cylinder is confirmed by the pressure processing requirements. Generally, in the hydraulic system directly supplied by the pump, the working stroke speed does not exceed 50mm/s, the fast forward speed does not exceed 300mm/s, and the hydraulic press retreats and fast forwards. The speed is flat.
Cold press
Hydraulic cold press equipment and debugging:
The length of the pressure-holding time can be set according to practical needs: first select the time method: "hour h. minute M. second S". If the time value is larger, you can set "99.99 hours". After the pressure holding time is over, the buzzer will sound to indicate that the workpiece has been pressurized. It is prohibited to set the time to "0000".
Before the hydraulic cold press presses the workpiece, it is necessary to choose the correct placement position according to the actual size and height of the workpiece, and it is forbidden to press the workpiece with left and right sides and front and rear unevenness.
Operation Before the actual use of the cold press, a detailed and comprehensive inspection must be carried out to ensure safe operation:
Check whether the safety protection equipment is correct. Strong and reliable. Check whether the transmission of the machine tool and the connecting parts are tight. Check whether the hydraulic system pressure is normal. Whether the rotation of the oil pump is correct. Check whether the lifting action is flexible and reliable. At the end, operate the empty machine tool once to see if the entire program moves correctly and place the workpiece in the correct way.
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