How to solve the problem of sanding machine long time use precision decline?

Alien sanding machine service time is long, accuracy, need to adjust: 1, sanding machine conveyor belt grinding sand cushion, workbench adjusted start sanding machine and conveyor belt will be carried to the table, the table gently touch the abrasive belt. Conveyor belt grinding amount should not exceed 0 at a time. 1 mm to avoid conveyor belt hot deformation. 2, the constant thick roll grinding bench height adjustment, remove the abrasive belt on the conveyor belt and placed under constant thick cylinder with a 60 - 80 sand paper template. Template width is greater than 200 mm, start the constant thick roller motor, elevated workbench, make sandpaper gently contact roller, back and forth motion along the reinforcement length direction template. Template stability, uniform, but rises constantly adjustment 3, roller sand cushion and remove the belt lift table, make constant thick roll gently touch the conveyor belt. Then, according to thickness readings, the workbench to reduce 1 mm, then loosen the nut. Loosen the hex nut at the ends of the pressure roller in the body, until gently contact pressure roller conveyor belt and screw down the nuts. 4, sand cushion flat rise sand cushion and remove the belt will be small level on the conveyor belt, workbench, rising gently until the constant thick roll contact level, will contact level sand mat down gently, level from sand mat to the other end of the move, to check whether there is error of sand cushion level, by sanding pad around the adjusting screw. 5, abrasive belt adjust it by photoelectric switch control, adjustable position, change the abrasive belt swing benchmark. In general, about 25 px abrasive belt edge protection fiber is controlled by two pairs of photocell. Reference point at the edge of the wood. Factory has zero, the workbench flatness adjustment, belt grinding, constant thick roll grinding, zero thickness must show 1. Grinding a piece of sample, measuring thickness, precisely to 0. 1 square meters. The height of the sensor, digital display in accordance with the thickness of the sample under test. Tighten the nut, and once again check the digital display.