The possible problems in the operation of the sanding machine

Sanding machine in the running process, often appear fault, most of the fault can be ruled out in time, but if not handled properly, may affect the production, increase the cost. This requires the operator to accomplish know fairly well, the common breakdown rapid response, timely ruled out. Some fault found not serious, but if inappropriate treatment, the result will be a big failure, serious impact on production.

1, abrasive belt corrugate: abrasive belt once wrinkling were unable to use, generally there are three kinds of abrasive belt wrinkling caused. A sand roller with the tension roller in the vertical plane of projection is not parallel, to be in the center bearing cylinder padded, correction. The second is the soft abrasive belt be affected with damp be affected with damp cause wrinkles, can be used to dry to dry, etc. Three is sanding machine long time not to use the sand roller surface rust rough, abrasive belt swing hard up trend, at this time dealing with the roller cleaning or with a fine sandpaper.

Fracture: 2, abrasive belt, abrasive belt fracture is mainly due to the abrasive belt running deviation, or abrasive belt grinding blunt no change in time, or sand cutting load is too large, or in the process of sand cut in hard objects, or abrasive belt itself quality problem caused. Should try to avoid abrasive belt fracture, or may cause fire or explosion. When the work station of the sand roller current when an exception occurs, should have to observe the abrasive belt grinding blunt, if it is, it should be replaced in a timely manner.

3, abrasive belt running deviation, generally due to improper adjustment, normal abrasive belt swing should be the swing for 15 to 20 mm, the pendulum frequency for 15 to 20 times/min, pendulum and put into the pose moderate speed. If in abnormal state, time grows, running deviation phenomenon may occur, especially the speed into pose, are more likely to cause. Abrasive belt running deviation may be a photocell failure, swing valve or swinging cylinder damage caused. Aspiration, high dust concentration will affect the normal work of the photocell, can also cause abrasive belt running deviation.

4, limit failure: the abrasive belt both limited position switch, when the abrasive belt failure, ran side slants, touch the limit switch, abrasive belt loosen, main motor automatically stop, which can effectively protect the abrasive belt. Once the limit failure can cause damage of abrasive belt, Mars friction machine frame, and even cause fire and explosion. Therefore limit switch should always check whether the action is reliable.

5, under the frame of oil pressure gauge pressure is not normal: adopts hydraulic elevator sanding machine side before the next frame has the oil pressure gauge, normal oil pressure gauge pressure is 70-90 kg/cm2, and relatively stable. If the pressure is frequent fluctuations between 70-90 kg/cm2, illustrate the potential leak within or outside the lift cylinder leaks, if the pressure is less than 70 ㎏ kg/cm2 abnormal need to adjust the hydraulic system. If there is no pressure, may be in place without pressure switch. Pressure gauge when abnormal sanding machine, may cause sand plate size out-of-tolerance or unstable, affect the quality of sand plate.

6, wandering into the board, sliding, rebound: in the adjustment of the sanding machine for the conveyor roller back pressure on the spring adjustment and two-thirds (third left), on the conveyor roller and the conveyor roller spacing should be less than by the slab thickness of 1.5mm or 1 mm, otherwise it will cause the slab wandering or skid. Serious cause rebound, it may hurt the personal safety.

7, after the replacement of abrasive belt sand cutting board size change: sanding machine cantilever in lock piece of loose or lock, volatile, normal should be within 0.5 mm. If it is too big, when the locking block lock cantilever, the size of the locking force difference can make the cantilever repeat precision difference, cause sand plate size, directly affect the sanding machine sand cutting precision. Error occurred when the cantilever is too big (more than 0.5 mm) should twist lock block is fixed bolt appropriate adjustments, in replacement of abrasive belt at the same time, fasten the block strength should be consistent.