Control system for multiple gate drawing device
A technology of multi-pass drawing and control system, applied in the field of control system of multi-pass drawing equipment, can solve the problems of broken wire or stripped wire, unable to meet the requirement of rapidity, etc.
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Embodiment 1
[0038] refer to figure 1 , figure 2 , image 3 , a control system for multi-pass drawing equipment, including various pass mechanisms, winding machine mechanisms, and controllers. Each pass mechanism is composed of a frequency converter, a motor, and an operating mechanism. The output of the frequency converter is connected to the motor, and the motor The running mechanism is connected by a transmission mechanism, a position sensor is installed on each pass mechanism, a tuner for coordinating the working speed relationship of the adjacent pass is installed between the rollers / drums of the adjacent pass, and the controller 1 includes the pass deviation control module 2, which is used to calculate the deviation control according to the position given value of the tuner between the i-1th pass and the i-th pass and the actual feedback value of the position sensor of the i-1th pass Quantity, its formula is as formula (2):
[0039] Δ G ...
Embodiment 2
[0057] refer to figure 1 , figure 2 , image 3 , the described controller of the present embodiment also includes a soft-start control module 5, and the soft-start control module 5 includes: a start-up setting unit 6, which is used to set the position sensor of each pass when starting. The setting and feedback deviation is smaller than the actual deviation; the deviation reduction unit 7 is used to increase the setting and feedback deviation within the set time limit, so that the setting and feedback deviation is equal to the actual deviation. The deviation reduction unit is an arithmetic increment unit, which is used to increase the given and feedback deviations by an equal amount within a set time.
[0058] The rest of the structure of this embodiment and the working process of the speed ratio adjustment module are the same as those of Embodiment 1.
[0059] Before the drawing equipment is started, the position of the tuner is arbitrary. The general method is to detect t...
Embodiment 3
[0065] The structure and working process of this embodiment are the same as those of Embodiment 2.
[0066] Take the 6-pass LZ6-560 wire drawing machine with 5.5mm incoming wire and 3.0mm outgoing wire as an example, choose a 37KW motor, design the mechanical transmission ratio, match the die diameter, and calculate the compression rate. In the case of a finished product pass of 390m / min , and other pass line speeds are shown in Table 1. Motor frequency and motor current are automatically read out from the drive via the bus.
[0067] No.
0
1
2
3
4
5
6
28.1
22.1
17.7
14.2
11.4
9.51
Mold diameter (mm)
5.50
5.17
4.61
4.12
3.69
3.31
3.00
11.65
20.50
20.13
19.80
19.50
17.85
Linear speed(m / min)
131
165
207
258
320
...
PUM
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