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  • Home > Industry application > Application in water tank wire drawing machine with PI9000 Frequency inverter
    2018-03
    26
    Application in water tank wire drawing machine with PI9000 Frequency inverter
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    1. Introduction

    Most use wire drawing machine of domestic metal processing enterprises, is no stranger to frequency conversion governor, this is because the frequency conversion governor long before there is widely used in wire drawing machinery, but most of the configuration are foreign brands inverter, reason is a research and development and marketing of domestic frequency control of motor speed technology started relatively late, over a period of time lags behind that of the frequency converter products abroad, no matter from the advancement of control algorithm, the software and hardware platform stability, there is a certain gap. Domestic inverter industry after years of development, technology and marketing have obtained great progress, the development of products is also to be able to do most of the needs of the industrial field. According to the characteristics of wire drawing machinery application known to science and technology co., LTD., the independent development of PI9000 series inverter, vector control technology (VC, SVC) and torque control technology, V/F control technology in one, a real comprehensive solution to the control needs of the wire drawing machine, so as to break the import brand the situation of unify the whole country.

     

     

    2. The wire drawing machine characteristic and main performance parameters:

    Structural characteristics:

    (1) Wire drawing machine with 132kw for traction, frequency control of motor speed.

    (2) Drawing way: sliding type continuous wire drawing.

    (3) Mode of transmission: use SPC narrow V belt transmission, the rest of the used mechanical gear transmission.


    3 .Performance parameters:

    (1)The lines: the Φ 8 mm.

    (2)The wire line diameter: 1.3-3.0 mm Φ Φ.

    (3) The maximum mechanical speed: 15 m/s.

    (4) The number up to stretch: 13.

    (5) Cooling way: circulating water cooling.

    (6) Speed adjustment way: frequency control of motor speed.


    4 .The draw bench unit structure characteristics and working principle:

    (1) The spiral arm type motorized: by 37kw motor drive, the arms can rotate 90 degrees. 2, drawing machine, and take-up:

    (2) This machine adopts horizontal triaxial, two groups of cone (drum), a set of guide roller and the metering arrangement, box structure is divided into before and after the two rooms, and before the room is equipped with wire drawing cone pulley, idler pulley and formwork, etc., after the room for gear transmission, both before and after the two rooms equipped with interlayer oil seal, not mixed with the lubricating oil and cooling liquid.

    (3) All the drive gear adopt cylindrical helical gear drive.

    (4) Drawing form for unilateral drawing, drawing mold fitting process by low sliding rate. For circulating water cooling way.

    (5) Drawing the main motor is 132kw, controlled by the frequency control of motor speed, speed can be within 0-500 m/min to realize stepless speed regulation. In order to make linear speed and drawing speed in sync, take-up by the main motor received by mechanical gear transmission line.


    5 .The water tank wire drawing machine technical requirements:

    (1) Low frequency torque should reflect. Low frequency point move threading, want to have enough torque, fast response speed, no jitter tremble.

    (2) Host a stopping time must not be allowed to occur the phenomenon of break line, such as a wire break fault should quickly alarm and emergency stop.

    (3) Smooth operation in the normal operation of the process.

    (4) When stop synchronized continuous line.

    (5) Electrical schematic diagram:


     

     

    6. PI9200 parameter setting:

    (1) F0.00=0(Vector control W/O PGmotor parameter set to b0b0.27 set to 1 press RUNasynchronous motor parameter static auto tunning)

    F0.11=1(Terminal block control)

    F1.00=1(DI1 terminal function selection)

    F0.03=4(Panel potentiometer setting)  

    F0.13=30(Acceleration time 1)

    F0.14=10(Deceleration time 1)

    (2) The main motor parameter setting

    F0.00=0(Vector control W/O PGmotor parameter set to b0b0.27 set to 1 press RUNasynchronous motor parameter static auto tuning)

    F0.11=1(Terminal block control)

    F1.00=1(DI1 terminal function selection)

    F1.02=4(DI3 terminal function selection)

    F0.03=4(Panel potentiometer setting)

    F0.13=30(Acceleration time 1)

    F0.14=5(Deceleration time 1)

    F7.00=10(Jog running frequencyuse Foot switch)

    F7.01=5(Jog acceleration time)

    F7.02=5(Jog deceleration time)


    7. After transforming the effect:

    Using vector control large enough to satisfy the low frequency torque, inching wear modes have enough torque, fast response, no shaking phenomenon. Equipment into filaments sometimes broken wires at high speed, broken wires after again after welding, due to the winding volume has a lot of filaments longer reboot to low-frequency larger torque. Two 9200 inverter panel introduction to the operation platform can monitor according to the production of related parameters and running status of transducers, and conveniently panel potentiometer control. With the meter switch in control circuit, when winding received some meters for the meter switch will automatically disconnect, pay-off from the host machine downtime. It is time to prevent disconnection in the normal production operation into trade unions put the pay-off machine running speed is greater than the host. Offline detection switch when detect bolt break line switch will automatically disconnect, pay-off from the host machine downtime.

    Customers reflect PI9200 inverter used in the water tank wire drawing machine run smoothly, low frequency have enough torque, without the line.

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