Common problems in the use of sander

The sander will inevitably break down when it works. Most of the minor problems can be solved by us. But if it is not handled properly, the whole project will be delayed and the production cost will be affected. Therefore, this requires the operator to have some understanding of common failures, when similar failures occur, can quickly respond, timely removal.


1, abrasive belt wrinkle: once the belt is wrinkled, it can no longer be used. Generally, it causes three kinds of wrinkles. The first is that the sand roller and the tension roller are not parallel in the vertical plane projection, so the pad should be added at the center supporting cylinder to correct. The two is the wetting and wrinkling of the abrasive belt, which can be dried and dried. Thirdly, the sand machine does not use the surface of the sand roller for a long time to rust rough, sand belt swing difficult to trigger a trend, at this time should be used to remove the roller rust or grinding with fine sand paper;


2. Abrasive belt breakage: Abrasive belt breakage is mainly caused by abrasive belt deviation, or abrasive belt grinding dull not timely replacement, or excessive grinding load, or encountered in the process of grinding hard or abrasive belt itself quality problems. The abrasive belt should be avoided as far as possible, otherwise it may cause fire or explosion. When abnormal roll current occurs in the operating table, it should be observed whether the belt has been worn down, if it is timely replacement;


3. Belt deviation: generally due to improper adjustment, the normal belt swing should be 15-20 mm swing, swing frequency 15-20 times / min, moderate swing speed and swing in and out of the same speed. If in an abnormal state, a long time, may appear deviation phenomenon, especially in the swing in and out of the speed is not consistent, more easily triggered. The deviation of the belt may be caused by the failure of the photoelectric tube, the damage of the swing valve or the swinging cylinder. Dust is not good, high dust concentration will affect the normal work of the tube, and may cause belt deviation.