1, The size of the vibrating screen is too long, resulting in tension screw tension;

2, There is a problem with the tensioning mechanism of the sieving machine, the tensioning plate and the sieving machine are not matched, the tensioning plate (hook) is worn thin or deformed;

3. The shape and size of the curved edge of the screen are not matched with the tensioning plate;

4. Structural damage of vibrating screen caused by welding fracture;

5. Rubber cushion strip is worn or has gaps;

6. Design structure defects of vibrating screen mesh or sieve machine;

7. The support bar of the vibrating screen box is lower than the screen screen, that is, there is a certain distance between the support bar and the screen screen;

8, The spring stiffness of the vibrating screen machine is not uniform;

9, Vibration screen machine amplitude is too large.