The application of transducer of series of KV2000 of division Mu dragon on extruder instrument

Lead plane an extruder lead plane by extruding, drive, heat cooling composition of 3 parts system. Extruding system basically is comprised by screw and machine bucket, it is the crucial part of extruder; Acting well in transmission system is drive screw, want to assure screw to have the torque of a need and rotate speed in working process; Heat cooling system basically assures stock and extruding system to be controlled in the temperature in processing. 2.

Subsidiary engine squeezes the composition of the subsidiary engine that gives device to be decided according to the sort of goods. Say commonly, the reel-up that subsidiary engine shows device of sizing system, cooling device, draw gear, cut and product by the agent or pile up the part such as device is comprised. 3.

The control system that controls systematic extruder basically is comprised by electric equipment, appearance and actuator, its main effect is: (1) control advocate, of subsidiary engine procrastinate use electric machinery, satisfy the rotate speed that craft asks to need and power, assure advocate, subsidiary engine moves can harmoniously. (2) control advocate, the quality of the temperature of subsidiary engine, pressure, discharge and goods. (3) the automation that implements whole set. 2, the control 　 of traditional screw extruder 1) in the screw extruder system in the tradition, screw by dc machine drive. Screw falls in straight drive circumstance direct by gear case drive; Below indirect drive circumstance, screw is mixed by leather belt drawing dish drive. Traditional dc machine itself is existing certain defect: For example the brush of dc machine every month is about to change, in much dust or caustic environment dc machine needs to often be cleaned, still need even sometimes from clean cooling air is connected for dc machine outside the workshop. 2) the defect of extruder of indirect drive screw depends on: Slippery difference of consist in leather belt, leather belt can cause certain energy loss, more machine increased to wear away with malfunctioning possibility. And the malpractice noise with dc the greatest opportunity is too big, brush strike a light, rotor pollution, electric machinery temperature is exorbitant, exhaust shakes with electric machinery inadequately. Because this uses the screw extruder of dc machine,uphold charge taller, the first price of dc motive is a few higher also 3, the transducer of applied 　 KV2000 in extruder uses KV2000 series transducer at pressing a facility, have the moving character of high quality, the good product performance that can provide because of itself of vector control transducer decides this. 1 > the processor that fast processor offers more high frequency rate to answer the buy inside 　 KV2000 transducer, offer tall control to answer what frequency has reached precision, quickly to use property. The craft of extruder asks the pressure that basically is control exit is constant, when equipment just was beginning the work, undertake rotate speed is controlled, when achieving demand pressure, want switch to be pressure control. Switch process should not have concussion, need the control precision with tall transducer, come reinforce pressure signal. 2 > when vector control offers low frequency, tall torque outputs extruder advocate screw roll is driven after drive electric machinery basically passes decelerate of reducer of parallel axis helical gear, constant torsion timing is when traversal speed is changed under fundamental frequency. Use V/f control transducer before, because want to consider the laden torsion that start, the torsion promotion that should set phasing to answer is accurate, if torsion promotion setting is exorbitant, meet when low frequency carries gently excitation is too big, cause electric machinery easily to give out heat badly, the stability that affects facility moves. Use transducer of vector control KV2000, function of use self-study be used to is considerable measure electric machinery parameter, not only the output that can make sure electric machinery is good when low frequency is characteristic, the automatic and energy-saving moving function of KV2000 can follow the change of torsion and reduce the electric current of output, not only can economic electric energy, can eliminate the possibility that afore-mentioned working hidden trouble produce more. 3 > torsion demarcate and turn poor compensation, rotate speed controls precision to be as high as thousand. CNC Milling