Extruder Xiangjie in basic skills – extruder screw – HC Network plastics industry
Twin-screw extruder HC plastic mesh Extrusion production line in operation of instrumentation
1, Inverter : Modern Extruder Use the inverter control for the first time users, as long as the basic functions learned in the factory are eligible debugging, so not familiar with the need to touch it before.
2, host ammeter: host current host is used to observe the current run size, this table can not regulate itself, but through the speed control to adjust the screw current host, current host if found too large, it should increased screw speed, or reduce the volume of feed. To protect the unit's normal life, in the device within the first three months, the host can not be the highest current (full load) current operation, up to 80% of the current host. Such as main motor for the current host 45KW 84.7A, running-in period, the current can not exceed 68A.
3, head melt pressure gauge: This form is used to observe Extrusion die The melt pressure in itself can not be adjusted, but through the feeder to adjust the speed, melt pressure is too high if they die, then slow down the feeder of the feeding rate.
4, gear box oil pump pressure gauge: normal display conditions in the 0.2-0.3, if the gas gauge was not properly display or would check the oil line, filter devices do not want to clean up the oil, or oil line if there is blockage.
4, screw speed adjustment table: open, screw speed is always slow after the fast start, with gradually accelerated manner. Preparation before driving
1, for the production of plastic extrusion drying necessary requirements to be met, if necessary, require further drying.
2, started operating device, the speed from slow to fast, check the meter is functioning properly, and observe the working status.
3, open the heater, heating temperature of the head body, to be set up in different parts of the temperature required value, should heat about 40 minutes, the temperature inside and outside the machine line.
4, sometimes needs to change the porous plate, filter, add enough oil, porous plates must be cleaned after use to secondary use.
Car: 1, not out of the plastic front, no person shall die at the front.
2, start the car at low speed, idling, check the screw breakage and electrical current overload and other devices whether the phenomenon of pressure gauge is normal (the machine idle time can not be too long, the shorter the better, to prevent the screw between friction and the screw and Barrel Produced by friction, scratch the barrel or screw, screw low-speed running time should not exceed three minutes)
3, gradually feeding a small amount until the plastic extrusion die, the screw speed to normal operating speed before the first lot of feeding.
4, plastic extrusion, the extrusion material will slowly be introduced to the cooling and traction equipment and the equipment prior to open,
Note: avoid opening cold cold car or truck, because there was no extrusion machine "hot topic" (ie, the plastic inside the extruder barrel yet to achieve the required temperature, the plastic melt viscosity is high) , when driving, especially the old extruder screw is broken, there may be. New extruder usually has torque overload protection device, a reliable and most effective way is to not drive before, when the temperature reached the required temperature value, the hand rotation Couplings part, left three times , right three times, the smooth rotation, you can boot. If you can not rotate smoothly, just not boot.
Parking: 1, stop the feeding, the Extruder plastic squeeze as much as possible complete, close the barrel and nose Power supply For the next operation.
2, turn off the system at the same time, close the Auxiliary Power.
I am a professional editor from International Trade Community,
and my work is to promote a free online trade platform.
http://www.xpshou.com/ contain a great deal of information about
bathroom wall cabinet wood , antique sink cabinet
welcome to visit!
Processing your request, Please wait....
