Operation Rules for Plastic Pipe Production Line

Preparations of Using Plastic Pipe Extruder

1. Check whether the gas and water systems of the plastic pipe production line are unblocked and whether there is any leakage.

2. Check whether the electrical system is normal, whether the heating system, temperature control and various instruments work reliably. The vacuum pumps are idling, the tractor is running at low speed, and the cutting machine is idling. Observe whether the equipment is normal.

3. Check whether the tractor adjustment, the three-dimensional movement of the vacuum box, and the cutting machine are easy, reliable, flexible in rotation, and free from jamming.

4. Add lubricating oil to the place where the equipment needs lubrication.

Boot Sequence of Plastic Pipe Extruder

1. Keep the temperature constant in each area of the barrel and mold (generally, the heating time depends on the size of the mold, usually 2~6 hours, and the heating time should not be too long. If the excess material of the barrel and mold is too long, it will decompose, and the appearance and quality of the manufactured pipe will decline. To make qualified products, a large amount of raw materials will be used to bring out the paste, which will cause great waste). Before driving, the flange bolts of the machine head and extruder should be tightened again to eliminate the difference of thermal expansion between the bolts and the machine head. The order of tightening the machine head bolts is diagonal tightening. When the nose hexagon nuts with flange is tightened, it is required that the tightness around it is consistent, otherwise the material will be leaked.

2. Start-up: Press "Forced Start-up" first, then "Host Start-up" button, and then press the host speed-up button to slowly increase the speed to 5r/min and stop the acceleration. At this time, pay close attention to the change of host current, which usually changes normally between-5 and 5a. The torque of the screw cannot exceed the red line mark (the general torque is 50%~75%). Observe the operation of the main engine, turn the screw (turn counterclockwise to normal) and listen to the equipment for any abnormal sound. If there is any abnormal sound, handle it in time and start it up. No one is allowed to stand in front of the die before the material is discharged, so as to prevent the bolt from breaking or the antirust oil from the barrel from spraying out and causing injury accidents.

3. After the draft tube is put into the die and preheated, stick the extruded material on the draft tube. Turn on the vacuum pump, tractor, and other materials to smoothly enter the sizing sleeve, and then accelerate synchronously until the appropriate process speed. During this process, it is necessary to observe the material entering the sizing sleeve. If material accumulation is found, it is necessary to speed up the traction and adjust the water inlet of the water ring. Then observe the pressure of the vacuum box, adjust it to a suitable pressure value, and observe the appearance of the manufactured pipe after it exits the vacuum box, and adjust the water volume of the water loop to make it beautiful and beautiful. Adjust the wall thickness, length, outer diameter, ovality and other requirements until the requirements are met.

4. In the process of producing the pipe extrusion equipment, it is required to regularly check whether various process parameters are normal, fill in process records, check the quality of pipe products according to quality inspection standards, and take timely solutions when problems are found.

Shutdown Sequence of Plastic Pipe Extruder

1. Stop feeding. Gradually reduce the rotation speed of the main screw and drain the remaining materials in the barrel. Under normal circumstances, it is not necessary to disassemble the screw to remove the material in the barrel after shutdown, but it must be pushed clean with cleaning material. After cleaning, close the plug-in board of the hopper of the plastic extruder, adjust the rotation speed of the main engine to zero and press the stop button.

2. Turn off the power supply, water and gas of the extruder and auxiliary machines. Clean the sizing sleeve, remove the die and wait for the next production.

3. Register and use operation records.

Precautions of Plastic Pipe Extruder

1. Items that should be paid attention to during extrusion of extruder: rotation of electricity, heat and machinery, loading and unloading of heavy parts, etc. The extruder workshop must be equipped with lifting equipment, screws and other heavy parts to ensure production safety. Prevent safety accidents such as scalding and electric shock; Do not put your hands into the rotating and pneumatic parts during the operation of the equipment, and it is forbidden to disassemble the protective covers during the operation!

2. Pay attention to whether there is any abnormal sound in the transmission system and barrel of plastic pipe production line.

3. Pay close attention to whether the lubrication, temperature control, heating and cooling systems are normal and there is no leakage.

4. No sundries are allowed in the material, and hard objects such as metal and sand are forbidden to enter the hopper.

5. The screw can only be started at low speed, and the idling time cannot be too long.

6. Before starting the machine again, the barrel must be fully preheated and kept warm. If necessary, a small amount of raw materials can be added to extrude the stock at low speed. The mould must be opened and cleaned after each use to ensure that it is smooth, otherwise coke will be produced.

The plastic pipe extruder from jwell extrusion machinery is a top-of-the-line machine, offering superior performance and reliability.