Drawing roller is the key component of drawing machine. It is usually made of metal and may have a rubber layer on the surface to increase friction. Its role is to generate enough traction through contact with the material to drive the strip forward at a constant speed to ensure the uniform size of the strip and good surface quality. The precision and performance of the traction roll directly affect the working efficiency and product quality of the stretcher.
Common failures of traction rollers include:
1. Surface wear
After a long time of use, the surface of the traction roll contacts and frictions with the material, causing the surface to become rough or pits, affecting the traction force and the quality of the brace.
2. Roll surface scratch
It may be that impurities or foreign bodies in the material cause scratches during the traction process, making the surface of the traction roll uneven.
3. The rubber layer is aging or falling off
If there is a rubber layer on the surface of the traction roll, the rubber may age, crack or even fall off when used for a long time or in a poor environment.
Step 4 Transform
Excessive pressure or uneven force may lead to deformation of traction rolls, affecting the smoothness and accuracy of traction.
5. Bearing damage
The bearing of the traction roll is worn, stuck or damaged, which will cause the traction roll to turn unsmoothly, resulting in vibration and noise.
6. The temperature is too high
Excessive continuous running time, poor lubrication, or excessive friction with other components may result in an abnormal increase in the temperature of the traction roll.
7. Lack of traction
It may be due to reduced friction on the surface of the traction roller, insufficient pressure, or other mechanical failure that does not provide enough traction to pull the material.
For example, in a plastic production workshop, due to the failure to clean the impurities in the material in time, the surface of the traction roll is frequently scratched, affecting the surface quality and production efficiency of the product.
