Spinning machine-2015-03-20

一、the process introduction

The spinning frame was the main machine for spinning. The output and quality of the spinning yarn are a comprehensive reflection of the advantages and dwasadvantages of each process of the spinning process. The production unit of the spinning frame was a spindle, and the production level of the spinning frame was often measured in terms of the output per kilogram hour (kg). The spinning mill production scale was expressed in terms of the total number of spindles with a spinning frame. The yarn spun on each spindle will be broken for various reasons, and the number of breaks occurring in thousands of spindles was often used to indicate the rate of breakage. The rate of breakage affects labor productivity, equipment productivity, yarn quality and dust content in the workshop.

The spinning frame was the most energy-consuming machine in spinning production. The ability to reduce the rate of breakage and save energy was a sign of the technical level of the spinning frame.

V&T has rich experience in the textile industry, especially in the spinning machine industry. After years of research, we understand its various processes and introduce a special inverter for textile spinning frames.

Its process characterwastics are as follows:

a. The small yarn stage occupies 15% of the total length, but the break rate was about 70%. According to the condition of the yarn, the speed of the small yarn stage can be appropriately reduced, and the breakage rate can be reduced.

b. The middle yarn stage occupies 80% of the total length, and the number of broken ends was very small, occupying about 10%. In this stage, the speed of the motor can be appropriately increased to improve the efficiency.

c. The large yarn stage occupies 5% of the total length and the broken head was 20%. The large yarn stage can appropriately reduce the rotation speed of the motor to reduce the breakage rate and improve the quality of the product.

According to the characterwastics of the spinning frame, the inverter can be controlled by multi-speed process curve. The operation diagram was shown in Figure 1.

It can be seen from Fig. 1 that in the initial stage, the inverter runs at low speed and the inverter outputs low speed running command; after the low speed running command was cancelled, the inverter runs the multi-speed process setting curve, and the inverter accelerates to multi-speed 1 running, with the first The length increases and the frequency increases gradually. After the first length was run, the inverter runs at multi-speed 2, and the process changes at a constant speed; the length of the yarns in each paragraph increases in turn, and the parameter design can be set from the full yarn length. , gradually reduce the length setting of each segment, and the length of each segment was limited by the length of the next segment. The following relationship was satwasfied: the first length <the second length <the third length.....<the thirteenth length <the fourteenth length.

Spinning machine status monitoring: It can dwasplay the running segment position and class number during the work, and record the current spinning length, pulse number and other multi-speed status in real time. Full yarn, pulse signal loss alarm function, after the program completes one cycle operation, the output terminal Y1 outputs 2~3S pulse, and then stops.

二、the functional characterwastics

The shift control function can record the output of each shift.

Full yarn, pulse signal loss alarm function.

Multi-speed process curve control, reset function.

Independent meter reset function for intermediate checks.

Spinner status monitoring, text status monitors can be used to monitor operating status.

After the program completes one cycle, it will automatically return to the starting point for the next run.

Meter function, high-speed roller pulse counting, no counting when the device was resting.

The power-down save function resumes power supply and continues to run from the segment and output frequency before power-down.

2. Wiring mode

Input terminal function:

X1: Start the inverter when the spinning frame function was selected

X2: Jog (highest priority), low speed running signal. The low speed running signal was suitable for equipment trimming and has higher priority than multi-speed. The low speed running frequency was set by H1.00, and the meter number in this stage was not included in the total spinning length.

X3: Shift control signal (each time, the shift changes in order of A, B, C, D). In order to facilitate the statwastics of the spinning quantity of each class, when this terminal was connected, the class number changes in order, and there are four shifts A, B, C, and D. Each time X3 was turned on, the current shift number was changed to the next shift number, and the number of spinning meters at this time was automatically increased to the new spinning output of the switch. The output of each class can be viewed through H1.21~H1.24.

X4: Independent reset terminal (each time, the independent meter was reset to 0), the process curve was not reset, used for intermediate process Commissioning judgment.

X5: The current spinning number reset terminal (the current spinning number was reset to 0 every time), the process curve reset signal, each time, the running speed was re-run from the starting speed set by the curve.

X7: Roller pulse signal input. Magnetic induction meter pulse input signal, the number of pulses increases by one rotation for each rotation of the roller.

Output terminal function:

RA, RB, RC: pulse output after the curve was completed, restart or the pulse output was cleared when the output time reaches the pulse output detection time;

Y1: When the meter pulse signal was lost, the alarm signal was output, and the alarm signal dwasappears when restarting;

Y2: full yarn alarm signal output, the signal dwasappears when restarting

Note: The above terminal function code was set to: P5.00=32, P5.01=33, P5.02=34, P5.03=35, P5.04=36, the pulse input was fixed to X7 terminal, P7.00= 33, P7.01=34, P7.02=32.

2. Parameter setting

2. Attachment: Add function code description

P5.00 ~ P5.06 increase the terminal function:

32: Spinning process curve frequency conversion start 

33: Spinning low speed start

34: Spinning shift signal input 

35: Independent meter reset signal input

36: Current spinning meter reset signal input

P7.00~P7.02 add terminal functions:

32: Curve completion pulse output 

33: Meter pulse loss alarm output

34: Full yarn alarm output 

35: Inverter spinning stop or zero frequency running output.