How to maintain the extruder?

(1) Daily maintenance is a routine work, not occupying equipment operation hours, usually completed during the start-up. The emphasis is to clean the machine, lubricate the moving parts, fasten the easily loosened threaded parts, check and adjust the motor in time, control the instrument, the working parts and pipes, etc.
_Periodic maintenance is usually carried out after the extruder has been running continuously for 2500-5000 hours. The machine needs to be disassembled, inspected, measured and identified the wear of the main parts, replaced the parts that have reached the specified wear limit, and repaired the damaged parts.
Do not allow empty cars to run, so that the screw and cylinder can not be rolled.
When an abnormal noise occurs during the operation of the extruder, it should be immediately stopped for inspection or repair.
Strictly prevent metal or other debris from falling into the hopper, so as not to damage the screw and barrel. In order to prevent the iron impurities from entering the barrel, the magnetic absorbing parts or magnetic frame can be installed at the feeding port of the barrel to prevent the impurities from falling into the barrel.
Pay attention to clean production environment, do not mix garbage impurities into the material clogging filter board, affecting the output of products, quality and increase the head resistance.
_When the extruder needs a long time to stop using, should be screw, barrel, nose and other working surfaces coated with anti-rust grease. Small screw should be suspended in the air or placed in a special wooden box, and padded with wooden blocks to avoid screw deformation or bruising.
Regularly calibrate the temperature control instruments to check the correctness of the adjustment and the sensitivity of the control.
The reducer of the extruder is maintained in the same way as the general standard reducer. The main purpose is to check the wear and failure of gears and bearings. The reducer shall use the lubricating oil specified in the machine instructions and add the oil according to the specified height of the oil surface, the oil is too little, the lubrication is insufficient, and the service life of the parts is reduced; too much oil, too much heat, too much energy consumption, and the oil is easy to deteriorate, thus making the lubrication invalid and causing damage to the parts. The gasket should be replaced promptly to ensure the amount of lubricating oil.
The inner wall of the cooling water pipe attached to the extruder is easily fouled and corroded and rusted externally. Maintenance should be carefully checked, excessive scale will block the pipeline, can not reach the cooling effect, serious rust will leak, so maintenance must be taken in the scale removal and corrosion cooling measures.