During the continuous operation of the extrusion screw barrel, its internal parts inevitably wear out, which directly leads to a decrease in production efficiency. In response to this bad phenomenon, related industries have proposed corresponding maintenance of the extrusion screw barrel. So what are the work contents of the maintenance of the extrusion screw barrel? Let's take a look together next!
After the extrusion screw barrel is put into production, due to long-term dynamic load operation, coupled with exposure to corrosive gas and melt erosion, the operating functions and production power of some transmission parts and screw barrels will gradually change and slightly decrease. In normal operations, it is emphasized that attention should be paid to the maintenance of the equipment. The intention is to extend the operating life of the equipment so that its operating functions and production power can maintain normal conditions for a long period. To ensure the steady growth of the economic benefits of the enterprise.
Extruder maintenance is divided into daily maintenance and regular maintenance. The daily maintenance of the extruder is the operating procedure rules and operating precautions in the production operation of the extruder, which requires the operator to implement it carefully. (Note here: the operator should be based on the working principle of the extrusion screw barrel)
The regular maintenance of the extruder can be organized according to the load and working time of the extruder. Generally, it can be carried out once every six months or once a year. During maintenance, repair fitters and equipment operators cooperate. The work content is as follows:
① Clean and wipe the oil stains on each part of the extruder and the dust in the electric control box.
② Disassemble the gear transmission reducer and the bearing gland to check the working wear of each transmission part; observe the quality change of the lubricating oil and make up for the amount of oil in time; if the oil contains more sundries, it should be filtered or replaced.
③ The worn gear should be surveyed and the bearing specifications should be recorded. After the operation, a spare parts production or purchase plan should be proposed, and a time for repair and replacement should be arranged.
④ Check the V-belt wear status and adjust the center distance of the V-belt equipment (it is required to keep the V-belt transmission operation loose and appropriate); if the V-belt is severely worn, it should be replaced.
⑤ Check the wear condition of the barrel and screw. There are slight scratches and friction marks on the inner surface of the barrel and the outer circle of the screw thread. It can be polished with a fine oil stone or fine emery cloth to achieve smooth lubrication. Record the working surface of the barrel and screw (the inner circle of the barrel and the outer diameter of the screw) Measured scale.
⑥ Detect and calibrate the actual heating temperature of the barrel (measured with a mercury thermometer) and the apparent temperature error value to ensure the correct control of the operating process temperature of the extruder.
⑦ Adjust and test each safety alarm device to ensure the reliability and accuracy of its operation.
⑧ Check and test whether various infusion pipelines (water, gas, and lubricating oil) are smooth, and repair and dredge the leaking and blocked parts.
⑨ Check and test whether the connection of each power transmission line is strong, and whether the safety grounding protection of the electric control box and equipment is strong.
⑩ Check and test whether the working orientation of heating equipment, cooling fan, and safety cover are correct, and make necessary adjustments and corrections to ensure that the extrusion screw barrel can operate correctly and effectively.