CN215404746U - Code wheel speed measurement control device of ring spinning frame - Google Patents
Code wheel speed measurement control device of ring spinning frame Download PDFInfo
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- CN215404746U CN215404746U CN202121576254.XU CN202121576254U CN215404746U CN 215404746 U CN215404746 U CN 215404746U CN 202121576254 U CN202121576254 U CN 202121576254U CN 215404746 U CN215404746 U CN 215404746U
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- spinning frame
- detection switch
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Abstract
The utility model discloses a coded disc speed measurement control device of a ring spinning frame, which comprises a coded disc, a main shaft of the ring spinning frame, a detection switch, a PLC (programmable logic controller) and a front roller frequency converter, wherein the coded disc is arranged on the main shaft of the ring spinning frame, the detection switch is arranged on one side of the coded disc and is connected with the PLC, and the PLC is connected with the front roller frequency converter. Utility model discloses a special design machinery code wheel to the detection switch that cooperates high response frequency tests the speed and handles to the algorithm of high-speed signal, has realized detecting device and has detected the contactless detection of object, and by a wide margin the reduction damages because of the device vibrations that the rotation caused, has realized quick, accurate, stable, durable technical characterstic, has both saved the cost, has increased the stability of equipment again.
Description
Technical Field
The utility model belongs to the technical field of ring spinning frames, and particularly relates to a coded disc speed measurement control device of a ring spinning frame.
Background
At present, the domestic spinning frame mainly adopts increment type encoder to carry out the speed detection of high accuracy, because textile mill spinning environment is abominable, and the cotton fibre is many, high humid high temperature and high vibrations for the spoilage of encoder is higher, thereby has influenced the spinning action, the bad yarn condition appears. Aiming at the problem, the utility model realizes the speed measurement control device which replaces an incremental encoder with a mechanical code disc by designing the mechanical code disc and matching with a detection switch with high response frequency to measure speed and an accurate software algorithm. Thereby reducing the damage rate of the device and ensuring the stable operation of the machine.
Disclosure of Invention
The utility model aims to provide a coded disc speed measurement control device of a ring spinning frame, which is a control device for rapidly, stably and accurately detecting the rotating speed of a main shaft of the spinning frame by specially designing a mechanical coded disc and matching with a detection switch with high response frequency to measure speed and processing a high-speed signal by an algorithm, and using the speed to control the movement of a roller. Compared with the conventional processing scheme for measuring the speed of the general incremental encoder, the control device realizes the non-contact detection of the detection device and the detected object, greatly reduces the vibration damage of the device caused by rotation, and realizes the technical characteristics of rapidness, accuracy, stability and durability.
The technical scheme adopted by the utility model is as follows: a coded disc speed measurement control device of a ring spinning frame comprises a coded disc, a ring spinning frame main shaft, a detection switch, a PLC (programmable logic controller) and a front roller frequency converter, wherein the coded disc is arranged on the ring spinning frame main shaft, the detection switch is arranged on one side of the coded disc, the detection switch is connected with the PLC, and the PLC is connected with the front roller frequency converter.
Furthermore, the coded disc is provided with a hole, the detection switch is arranged at a position 1-2mm away from the plane of the coded disc, and the side surface of the detection switch is opposite to the hole of the coded disc and used for detecting the rotating speed of the coded disc. When the main shaft of the ring spinning frame moves, the coded disc moves at the same speed along with the main shaft, so that the rotating speed of the main shaft of the ring spinning frame can be obtained by detecting the rotating speed of the coded disc by the detection switch with high response frequency. The detection switch signal with high response frequency is directly connected to a high-speed input port of the PLC controller and used for collecting pulse signals, denoising and filtering the pulse signals in the PLC controller, and calculating by a calculation method, so that the stable and accurate speed of the spindle is obtained. And according to the speed, the theoretical speed of the front roller in operation is calculated by combining the spinning process of the spinning frame, and the rotating speed of the frequency converter of the front roller is controlled by the PLC controller, so that the rotating speeds of various processes of the spinning frame are correct.
The utility model has the beneficial effects that: the control device realizes the non-contact detection of the detection device and the detected object, greatly reduces the vibration damage of the device caused by rotation, realizes the technical characteristics of rapidness, accuracy, stability and durability, saves the cost and increases the stability of the equipment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of a coded disc speed measurement control device of a ring spinning frame of the present invention;
FIG. 2 is a schematic structural diagram of a code wheel in the utility model.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1-2, a coded disc speed measurement control device of a ring spinning frame comprises a coded disc 1, a main shaft 2 of the ring spinning frame, a detection switch 3, a PLC controller 4 and a front roller frequency converter 5, wherein the coded disc 1 is arranged on the main shaft 2 of the ring spinning frame, the detection switch 3 is arranged on one side of the coded disc 1, the detection switch 3 is connected with the PLC controller 4, and the PLC controller 4 is connected with the front roller frequency converter 5. The coded disc 1 is provided with a hole, the detection switch 3 is arranged at a position 11-2mm away from the plane of the coded disc, and the side surface of the detection switch 3 is opposite to the hole of the coded disc 1 and used for detecting the rotating speed of the coded disc 1. When the main shaft 2 of the ring spinning frame moves, the coded disc 1 moves at the same speed along with the main shaft 2, so that the rotating speed of the main shaft 2 of the ring spinning frame can be obtained by detecting the rotating speed of the coded disc 1 by the detection switch 3 with high response frequency. The signal of the detection switch 3 with high response frequency is directly connected to a high-speed input port of the PLC controller 4 for collecting pulse signals, the pulse signals are denoised, filtered and calculated by a calculation method in the PLC controller 4, and therefore the stable and accurate speed of the spindle 2 is obtained. And according to the speed, the theoretical speed of the front roller in operation is calculated by combining the spinning process of the spinning frame, and the rotating speed of the front roller frequency converter 5 is controlled by the PLC 4, so that the rotating speeds of various processes of the spinning frame are correct.
Due to the design of the hardware of the code wheel 1, due to the special installation position and use environment of the hardware and different performances of detection components, code wheel structures of various situations and specifications are developed and tested, and finally the code wheel shown in FIG. 2 is selected.
The contrast has been tested the speed with the encoder and has been tested the speed with code wheel speed measurement controlling means and carried out the contrast, the code wheel is 60 teeth, 60 lines are also selected to the encoder, high response frequency's detection switch response frequency is 4.5KHZ, insert the different high-speed input ports of PLC controller simultaneously with encoder signal and detection switch signal, under same main shaft speed, test the speed pulse number with the encoder and compare with the magnetic switch speed pulse number, get the average value of 10 times data, concrete experimental data is as follows:
| spindle speed (rpm) | Encoder pulse number (one/minute) | Code disk speed measuring pulse number (one/minute) |
| 267 | 16397 | 16399 |
| 535 | 32814 | 32815 |
| 801 | 49232 | 49238 |
| 1068 | 65653 | 65655 |
| 1335 | 82071 | 82076 |
| 1602 | 98458 | 98468 |
| 1869 | 114842 | 114852 |
Through contrast experiment, the code wheel tests the speed and the encoder tests the speed unanimously in the rate of accuracy, nevertheless in the experiment, also finds the encoder and tests the speed more stably, but the code wheel tests the speed undulant and than the encoder is great, consequently receives the PLC controller with code wheel speed signal earlier, passes through the inside filtering algorithm of PLC controller again to obtain reliable and stable speed signal.
Code disc speed measurement filtering algorithm: and (3) setting the sampling values of the first 2 times as a maximum value and a minimum value, comparing the sampling values with the maximum value and the minimum value every time, replacing the maximum value with the value of the current time if the sampling values are larger than the maximum value, replacing the minimum value with the value of the current time if the sampling values are smaller than the minimum value, and averaging the maximum value and the minimum value of the current sampling to obtain an effective value of the current sampling.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a ring-spinning frame code wheel speed measurement controlling means, includes code wheel (1), ring-spinning frame main shaft (2), detection switch (3), PLC controller (4), front roller converter (5), its characterized in that, code wheel (1) sets up on ring-spinning frame main shaft (2), and code wheel (1) one side is provided with detection switch (3), and detection switch (3) are connected with PLC controller (4), and PLC controller (4) are connected with front roller converter (5).
2. The ring spinning frame code wheel speed measurement control device according to claim 1, characterized in that the code wheel (1) is provided with an opening, the detection switch (3) is arranged at a distance of 1-2mm from the plane of the code wheel (1), and the side surface of the detection switch (3) is over against the opening of the code wheel (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121576254.XU CN215404746U (en) | 2021-07-12 | 2021-07-12 | Code wheel speed measurement control device of ring spinning frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121576254.XU CN215404746U (en) | 2021-07-12 | 2021-07-12 | Code wheel speed measurement control device of ring spinning frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463235A (en) * | 2021-07-12 | 2021-10-01 | 经纬智能纺织机械有限公司 | Code wheel speed measurement control system of ring spinning frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463235A (en) * | 2021-07-12 | 2021-10-01 | 经纬智能纺织机械有限公司 | Code wheel speed measurement control system of ring spinning frame |
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