Plastic Granulator Features: After the plastic is added into the hopper, the hopper smoothly falls onto the screw and is bitten by the screw thread. As the rotation of the screw is forced by the thread to the nose, it forms a mechanical conveying process. When the plastic is run from the feed port to the machine head, the depth of the thread of the screw gradually decreases, and due to the presence of resistances such as the screen, the diverter plate, and the head, a very high pressure is formed in the plasticizing process of the plastic and the material is pressed. It is dense, improves its heat transfer conductivity, helps the plastic to melt quickly, and gradually increases the pressure so that the gases originally present between the particles exit from the vent.
Plastic Granulator Prone to Failure and Maintenance Methods:
Failure: Unstable feeder current causes uneven feeding, main motor bearing damage or poor lubrication, and no heating. A section of the heater failed or the phase was incorrect, the screw adjustment pad was incorrect, and the assembly interfered.
Plastic granulator maintenance methods: troubleshooting, check the feeder, replace the bearings if necessary. Check main motor and replace heater if necessary. Check if each heater is working properly. Pull out the screw and check the screw for interference. Check the adjustment pad.
Fault: The main motor cannot be started: if there is something wrong with the driving sequence, check whether the fuse is burned; the main motor thread has problems; the interlocking device associated with the main motor is working.
Plastic granulator maintenance methods: re-drive the car in the correct driving sequence, check the sequence, check the main motor circuit, check the state of the interlocking device associated with the main motor. The oil pump does not open and check that the oil pump starts. The motor cannot be turned on. Turn off the main power and wait for 5 minutes before starting. The inverter’s inductive power is not released. Check if the emergency button is reset.
Failure: Poor discharge or blockage of the head: Poor plasticization of the material Some heater does not work or the molecular weight distribution of the plastic is wide. Operating temperature setting is low and unstable. There may be foreign materials that are not easily melted.