The working principle of the beaded cold press and the specific content of installation and debugging

There are many types of bead cold press in 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 leave messages to ask questions about this aspect, so let us follow our operators to learn.

The operating principle of the bead cold press:

According to the restricted process requirements, the main cylinder of the beaded cold press can complete the basic operation cycle of rapid downward movement, deceleration limit, pressure holding delay, pressure relief return, and intermittent (any orientation), and the pressure, speed and pressure holding time need to be able to be scheduled. The ejection hydraulic cylinder is used to eject the workpiece, and it is required to complete the ejection, retraction, and intermittent actions. For example, when the sheet is stretched, auxiliary actions such as lifting, intermittent, and pressure return of the ejector hydraulic cylinder are required. Sometimes it is necessary to press the blank with a blank holder to avoid wrinkles around it.

The beaded cold press takes the larger pressure (tonnage) that may be output by the actuator (master cylinder) in the main motion as the hydraulic press specification, 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 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 process 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.

Equipment and debugging of hydraulic cold press:

The length of the pressure holding time can be set according to practical needs: first select the time mode: "hour h. minute M. second S". If the time value is larger, "99.99 hours" can be set. After the pressure holding time is over, the buzzer will sound to indicate that the workpiece has been pressurized. It is forbidden 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 pressurize 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 the safety of the operation:

Check whether the safety protection equipment is correct. Sturdy 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. Operate the empty machine tool once at the end to see if the entire program moves correctly and the workpiece is placed in the correct way.