Screw extruder is mainly used for extruding soft and hard polyvinyl chloride, polyethylene and other thermoplastic plastics. It can process a variety of plastic products, such as blown film, extruded tube, pressing plate, drawing ribbon, etc., and can also be used for melt granulation. The plastic extruder has advanced design, high quality, good plasticization, low energy consumption, adopts involute gear transmission, has the characteristics of low noise, stable operation, large bearing capacity and long life.
So what should be paid attention to during the maintenance process of screw extruder of plastic filament extruding machine line?
Routine maintenance is a regular routine work that does not take up equipment operating hours and is usually completed during start-up. The focus is to clean the machine, lubricate the moving parts, tighten the threaded parts that are easy to loosen, check and adjust the motors, control instruments, various working parts and pipelines in time.
1. Regular maintenance is usually carried out after the extruder has been running continuously for 2500-5000h, and the machine is stopped. The machine needs to be disassembled for inspection, measurement, and identification of the wear of the main components, replacement of parts that have reached the specified wear limit, and repair of damaged parts.
2. It is not allowed to run empty, so as to avoid the screw and machine from rolling.
3. If abnormal noise occurs during the operation of the extruder, stop immediately for inspection or repair.
4. Strictly prevent metals or other debris from falling into the hopper to avoid damage to the screw and barrel. In order to prevent iron debris from entering the barrel, a magnetic absorption component or a magnetic frame can be installed at the material inlet of the barrel to prevent debris from falling into the barrel. The material must be screened in advance.
5. Pay attention to the clean production environment. Do not mix garbage and impurities into the material to block the filter plate, which will affect the output, quality and increase the resistance of the machine head.
Post time: Dec-05-2020