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The sawing machine manufacturer sends materials to the sawing position by manual feeding frame

Time: March 14, 2020 Author: Ning Rui, Jinan Back to list

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     Sawing machine manufacturer The servo position control module of the system adopts the position control of the combination of sampling interpolation and preview control (the specific control is omitted), which determines the position of the feeding cylinder to close, so that the feeding cylinder just reaches the target position when it stops. Due to the hysteresis and inertia of electromagnetic machinery, it is almost impossible to control the movement of the feed slide by 0.1 mm through "on" and "off". In order to ensure the * small feeding length and feeding accuracy, the rear tongs make the feeding slide back to LK position, then move forward to the predicted position LT, and close the feeding solenoid valve. When the feeding cylinder movement stops, the rear clamp is clamped. Since the position of metal band saw blade is fixed and the position of sawing material is different, the workpiece must be sent to the sawing position. Generally, there are three feeding methods for sawing machine:

I. manual feeding: the material is sent to the sawing position by manual feeding frame, and the size to be sawn is measured manually or by using the sawing machine. This method is suitable for small size materials.

2. Mechanical transmission feeding: through the motor, reducer, sprocket and chain, the feeding roller is driven to rotate, and the feeding and returning buttons are operated to send the workpiece to the sawing position of bimetal band saw blade. This method is suitable for large-scale bar or plate, and the precision requirement is not high, and the mass production is not required.

3. Automatic feeding: CNC sawing machine generally adopts automatic feeding. The feeding mode of hydraulic cylinder clamping, grating ruler length measuring device or stepping (servo) motor driving screw rod and gear rack can automatically measure the feeding length and calculate the feeding times. When the set sawing times are reached, the sawing machine will stop automatically. Automatic feeding mode is suitable for mass production, with the advantages of fast speed, stable cutting length, and one person can operate multiple sawing machines.

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How to check the impurity hydraulic oil of sawing machine

The water content of the hydraulic oil; the oil is milky white, and the smell does not change, which indicates that there is too much water mixed. A small amount of hydraulic oil should be dropped on the hot iron plate. If the sound of "trumpet" sounds, it means that there is moisture in it, and the new oil should be replaced.

Impurity content of hydraulic oil; Take a few drops of hydraulic oil on your hand and twist it with your fingers. If there are more metal particles or flash points, it is proved that there are too many impurities in the hydraulic oil, which should be deposited for more than 42 hours, and then the filter should be continued to use. When cleaning, the flow rate should be as large as possible to make the liquid flow in the pipeline turbulent, and complete the actions of each performing element, so as to ensure the safety of the hydraulic oil The pollutants are washed out from the components such as pumps, valves and hydraulic cylinders. After cleaning, the cleaning fluid is drained out under hot conditions and the new oil is replaced.

The oxidation degree of the hydraulic oil; if the color of the hydraulic oil is dark brown and has a bad smell, it indicates that it has been oxidized. The deeper the brown is, the stronger the odor is, the more violent the oxidation degree is. At this time, we need to replace the new hydraulic oil.


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