6. When the extruder of plastic filament machine line needs to be stopped for a long time, it should be coated with anti-rust grease on the working surface of the screw, machine shaft, and head. The small screw should be hung in the air or placed in a special wooden box, and be leveled with wooden blocks to prevent the screw from deforming or bumping.
7. Regularly calibrate the temperature control instrument to check the correctness of its adjustment and the sensitivity of control.
8. The maintenance of the reducer of the extruder is the same as that of the general standard reducer. Mainly check the wear and failure of gears and bearings. The gearbox should use the lubricating oil specified in the machine manual, and add oil according to the specified oil level. If the oil is too little, the lubrication will not be reversed, and the service life of the parts will be reduced; too much oil, high heat, high energy consumption, easy oil Deterioration also makes lubrication ineffective and causes damage to parts. The sealing gasket (ring) should be replaced in time for the oil leakage part of the reduction box to ensure the amount of lubricating oil.
9. The inner wall of the cooling water pipe attached to the extruder is prone to scale formation, and the outside is prone to corrosion and rust. Careful inspection should be done during maintenance. Excessive scale will block the pipeline and fail to achieve the cooling effect. If the rust is serious, water leakage will occur. Therefore, descaling and anti-corrosion measures must be taken during maintenance.
10. For the DC motor that drives the screw to rotate, it is necessary to check the brush wear and contact condition. The insulation resistance of the motor should also be measured frequently. In addition, check whether the connecting wires and other parts are rusty, and take protective measures.
Post time: Dec-10-2020