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Hydraulic cutting machine

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The main basis for judging the function of the hydraulic cutting machine is: punching force and punching speed. The punching force is very large, but the punching speed is very low, or the punching speed is very high, but the machine with a small punching force cannot successfully complete the punching task. For mechanical cutting machines, the punching speed is generally high, about 250 times / minute; the punching speed is variable, and the average punching speed is: 200 mm / sec. The cutting speed of the hydraulic cutting machine is generally greater than 75 mm / s.


1 Introduction

The main basis for judging the function of the hydraulic cutting machine is: punching force and punching speed. The punching force is very large, but the punching speed is very low, or the punching speed is very high, but the machine with a small punching force cannot successfully complete the punching task. For mechanical cutting machines, the punching speed is generally high, about 250 times / minute; the punching speed is variable, and the average punching speed is: 200 mm / sec. The cutting speed of the hydraulic cutting machine is generally greater than 75 mm / s.

The difference between the mechanical transmission cutting machine and the hydraulic transmission cutting machine is mainly determined by the different characteristics of the two transmissions: the mechanical transmission is a rigid transmission, while the hydraulic transmission does have some flexibility.

The characteristic of the hydraulic cutting machine is: when the punching head acts on the workpiece through the die, the pressure in the cylinder does not reach the rated pressure, and the pressure will increase with the time of contact (cutting into the work), until The electromagnetic directional valve receives the signal, the directional valve switches, and the punching head starts to reset; at this time, the pressure in the oil cylinder may not reach the set rated pressure value due to the limitation of the pressure oil time entering the oil cylinder; that is, It is said that the die cutting has been completed before the system pressure reaches the design value.

2 Status of use

Hydraulic cutting machines are in the mainstream. Among hydraulic cutting machines, a large number of rocker cutting machines with a tonnage of 8-20 tons are used. Most of the flat and gantry cutting machines are used for relatively large manufacturers, which are more suitable for punching leather and artificial non-metal materials.

3 uses

Widely used in leather and shoes, handbags and bags, gloves and hats, crafts and silk flowers, embroidery, puzzles and business cards, blister and packaging, printing and paper products, stationery, plastic chemicals, automotive and electronics Industry.

Methods to solve noise problems

1. Check all parts of the hydraulic cutting machine, replace the parts that have problems, or repair.

2. Replace the appropriate hydraulic oil.

3. Check the oil volume of the hydraulic oil to prevent inhaling air or cleaning the filter.

4. Adjust the concentricity of the coupling of the hydraulic cutting machine, or replace the parts.

5. Clean the valve core or replace with new parts. The current must be stable and sufficient.

References

Reference editing area



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