Woodworking machinery woodworking sander common fault analysis and ruled out

Woodworking machinery in the process of operation of woodworking sander, often appear some fault, but they should keep clear of in time, but if not handled properly, may affect the production, increase the cost. This requires operators must be familiar with operational procedures, skilled operation, eliminate in a timely manner. Some fault when found not serious, but if not handled properly, can cause large fault, the serious influence production. The following common fault of sanding machine were analyzed. 1, the abrasive belt running deviation, generally due to improper adjustment, abrasive belt 15 - a normal swing swing 20 mm, 15 - pendulum frequency 20 times/min, the pendulum is moderate, put into the pose speed. If in the abnormal state, running deviation may occur for a long time. The speed of the pendulum, in particular, are prone to cause abnormal stop. Photoelectric switch is damaged, the electromagnetic valve damage, damage of swinging cylinder. Dust, dust concentration is high, will affect the normal work of the photovoltaic cells, can also cause abrasive belt running deviation; The damaged parts should be replaced in a timely manner, in order to improve dust removal effect. 2, limit failure. Limit switch located in the belt on both sides. Once the limit failure, will cause the damage of abrasive belt, friction of Mars, or even cause a fire. Therefore, the limit switch should always check whether the action is reliable. 3, abrasive belt wrinkling, once the abrasive belt wrinkling cannot reoccupy, generally there are three possible abrasive belt corrugate: the sand roll and tension roll wear, polishing, repair roller; Wrinkle caused by soft abrasive belt be affected with damp be affected with damp, can be processing by adopting the method of drying; The sand roller surface rust. ND rough, in the process of sanding belt is not easy to swing, there is a certain trend. At this point, the rollers should be rust removal or with fine sand paper burnish. 4, abrasive belt, abrasive belt breaking is mainly due to the abrasive belt running deviation, or abrasive belt grinding blunt not change in time, or abrasive belt cutting load is too large, or other hard materials in the cutting process of abrasive belt, or the quality problem of the abrasive belt itself. Should try to avoid abrasive belt fracture, or may cause a fire. When the current exception, should observe whether abrasive belt is dull, such as dull, it should be replaced in a timely manner. 5, wandering into the board, sliding, rebound, conveyor roller on sanding machine adjustment requirements back pressure spring to two-thirds ( The rest) And on the conveyor roller and the thickness of the conveyor roller should be less than 1. 5 mm or 1 mm, otherwise it will cause or skid plate wandering. In severe cases, it may cause recoil, it may damage the personal safety. After six, replacement of sand belt, sand when cutting board size changes, loosen lock lock block, or sanding machine cantilever can produce larger fluctuation, normal position should be 0. 5 mm or less. If too large, the lock block lock cantilever, the size of the locking force difference leads to cantilever repeat precision difference, caused by sand plate size, directly affect the sanding of sanding machine precision. When the cantilever error is too large, Greater than zero. 5毫米) Shall be appropriately loosen and adjust the lock block the retaining bolt. Replace the abrasive belt at the same time, lock the clamping force of the block should be consistent. 7, when conveying roller intermittent rotation or not turn in the empty or does not work, generally cannot observe the above situation. It can only be found in the empty, because some or all of the turbine and wear are caused by the transmission power of turbine speed. Although it does not affect the work, but other worm gear can increase the workload, shorten, thereby causing loss to the larger. Therefore, once found this kind of situation, should be replaced immediately. 8, the main bearing vibration anomalies. Under normal circumstances, the vibration of the main bearing is very small, experienced operator can judge whether the contact is normal, the scene did not use the instrument measuring conditions but can be compared with other bearing seat, also can judge from sand plate surface. When the abnormal vibration bearing seat, can think that there are two reasons, one is the bearing damaged, as long as the bearings can be replaced, the other one is the contact roller wear and running deviation, dynamic balance of the original damage, cause abnormal vibration, this case must be removed for repair of sand roller. 9, main transmission belt creep, Q, M sand light machine