A tow dynamic uniformity adjustment control system based on weight difference method

Abstract

The application discloses a kind of based on weight difference method's tow dynamic uniformity adjustment control system, including first weighing sensor, second weighing sensor, third weighing sensor, first roller, second roller, third roller, belt, drive motor, centralized controller.The system of the present application proposes to measure the weight of roller using weighing sensor, according to the weight difference between rollers, indirectly obtain the dynamic weight of tow per unit length, according to the dynamic weight of tow per unit length, control the speed of traction motor, so as to adjust draft ratio, dynamically and automatically adjust tow uniformity.

Description

TECHNICAL FIELD

[0001] The application discloses a portable high-voltage line construction alignment device and belongs to the electric power field. BACKGROUND

[0002] In the textile industry, whether it is winding or weaving, the tension, gram weight stability and uneven thickness of the tow will have a significant impact on the quality of the product. Therefore, good control of the tension and thickness of the tow is the guarantee of high-quality products. The dynamic uniformity adjustment control system of the tow (yarn) of the tow spinning machine can accurately adjust the tow through tow tension control to make the weight and thickness density of the tow uniform, reduce the spinning yarn breakage, reduce the yarn thick spots, and reduce the yarn defects and hairiness. SUMMARY

[0003] Therefore, the application provides a portable high-voltage line construction alignment device.

[0004] The technical scheme of the application is as follows:

[0005] A dynamic uniformity adjustment control system of a tow based on a weight difference method, comprising a first weighing sensor, a second weighing sensor, a third weighing sensor, a first roller, a second roller, a third roller, a belt, a driving motor and a centralized controller; the signal output ends of the first weighing sensor, the second weighing sensor and the third weighing sensor are connected with the signal acquisition end of the centralized controller; the first weighing sensor, the second weighing sensor and the third weighing sensor are respectively installed at the lower end of the bearing seat of the first roller, the second roller and the third roller to weigh the weight of the rollers; the belt continuously winds on the first roller, the second roller and the third roller; the voltage input end of the driving motor is connected with the output end of the centralized controller, and the motor speed is adjusted by controlling the motor working voltage.

[0006] Preferably, the first weighing sensor, the second weighing sensor and the third weighing sensor adopt cantilever beam weighing sensors or tray type weighing sensors, are respectively used for measuring the weight of the first roller, the second roller and the third roller, and indirectly obtain the dynamic weight of the tow per unit length according to the weight difference between the rollers.

[0007] Preferably, the belt adopts rubber material, the upper surface of the belt is placed with the fabric, is flattened after passing through the first roller, is flattened again after passing through the second roller, and is flattened once more after passing through the third roller.

[0008] The driving motor adopts a direct current or alternating current speed regulating motor, drives the rollers to drive the first roller, the second roller and the third roller to rotate together through the belt.

[0009] Preferably, the centralized controller comprises a microprocessor module, a first weighing sensor interface, a second weighing sensor interface, a third weighing sensor interface, a display screen, a button, an H-bridge motor driving circuit, a power module, and an RS485 module; the first weighing sensor interface, the second weighing sensor interface, and the third weighing sensor interface are connected with the A / D port of the microprocessor module; the input end of the display screen is connected with the I / O port of the microprocessor module; the output end of the button is connected with the I / O port of the microprocessor module; the input end of the H-bridge motor driving circuit is connected with the I / O port of the microprocessor module; the output end of the power module is connected with the power port of the microprocessor module; and the input end of the RS485 module is connected with the communication interface of the microprocessor module.

[0010] Preferably, the microprocessor module adopts an STM32 microprocessor.

[0011] The present application has the following advantages:

[0012] The system of the present application measures the weight of the roller by using the weighing sensor, indirectly obtains the dynamic weight of the sliver in unit length according to the weight difference between the rollers, controls the rotating speed of the traction motor according to the dynamic weight of the sliver in unit length, thereby adjusts the draft ratio, dynamically and automatically adjusts the sliver uniformity, and through the three rollers, the three rollers are provided with high-precision weighing sensors, the weight of the sliver between the rollers can be obtained by measuring the weight difference of the rollers, the rotating speed of the traction motor is controlled according to the weight difference, thereby the draft ratio is adjusted, the dynamic uniformity of the yarn output is realized, and the number of thick and thin yarns is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a system structure diagram of the present application;

[0014] Figure 2 is a principle structure diagram of the centralized controller. DETAILED DESCRIPTION

[0015] The present application will be further described below in combination with the drawings. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0016] As Figure 1As shown in the figure, a kind of tow dynamic uniformity adjustment control system based on weight difference method, including first weighing sensor 3, second weighing sensor 5, third weighing sensor 8, first roller 2, second roller 4, third roller 6, belt 1, drive motor 7, centralized controller 9;First weighing sensor 3, second weighing sensor 5 and third weighing sensor 8 signal output end are connected with the signal acquisition end of centralized controller 9;First weighing sensor 3, second weighing sensor 5, third weighing sensor 8 are respectively installed in the lower end of the bearing seat of first roller 2, second roller 4 and third roller 6, and the weight of roller is weighed;Belt 1 is continuously wound on first roller 2, second roller 4, third roller 6;Drive motor 7 voltage input end is connected with the output end of centralized controller 9, and the rotational speed of motor is adjusted by controlling motor operating voltage.

[0017] Preferably, the above-mentioned first weighing sensor 3, second weighing sensor 5, third weighing sensor 8 adopt cantilever beam weighing sensor or tray type weighing sensor, respectively used for measuring the weight of first roller 2, second roller 4 and third roller 6, and the dynamic weight of tow per unit length is indirectly obtained according to the weight difference between rollers. According to the dynamic weight of tow per unit length, the rotational speed of the traction motor is controlled, so as to adjust the draft ratio, and the tow uniformity is dynamically and automatically adjusted.

[0018] First roller 2, second roller 4, third roller 6 adopt metal roller, can also adopt non-metal roller, and first roller 2, second roller 4, third roller 6 are vertically and parallelly installed, can also be installed at a certain angle, and the installation height can be adjusted at will to meet the uniformity control requirements of different fabrics.

[0019] Preferably, the above-mentioned belt 1 adopts rubber material, and the fabric is placed on the upper surface of the belt, flattened after passing through the first roller, then passes through the second roller, and finally passes through the third roller again.

[0020] As shown in the figure, Figure 2 The above-mentioned centralized controller 9 includes microprocessor module, first weighing sensor interface, second weighing sensor interface, third weighing sensor interface, display screen, key, H-bridge type motor driving circuit, power module, RS485 module;First weighing sensor interface, second weighing sensor interface and third weighing sensor interface are connected with microprocessor module A / D port respectively;Display screen input end is connected with microprocessor module output end I / O port;Key output end is connected with microprocessor module input end I / O port;H-bridge type motor driving circuit input end is connected with microprocessor module output end I / O port;Power module output end is connected with microprocessor module power port;RS485 module input end is connected with microprocessor module communication interface.

[0021] Preferably, the above-mentioned microprocessor module adopts STM32 microprocessor.

[0022] Working control flow and spinning machine sliver uniformity control method

[0023] First step: the first, second and third weighing sensors 3, 5, 7 respectively measure the weight G1 of the first roller 2, the weight G2 of the second roller 4 body, and the weight G3 of the third roller 6, and send the data to the centralized controller 9; the weight G1 of the first roller 2 includes the weight G4 of the first roller itself, the weight G5 of the belt, and the weight G6 of the sliver, wherein the weight G4 of the first roller itself and the weight G5 of the belt are fixed values; the weight G2 of the second roller 4 body includes the weight G7 of the second roller itself, the weight G8 of the belt, and the weight G9 of the sliver, wherein the weight G7 of the second roller itself and the weight G8 of the belt are fixed values; the weight G3 of the third roller 6 body includes the weight G10 of the third roller itself, the weight G11 of the belt, and the weight G12 of the sliver, wherein the weight G10 of the third roller itself and the weight G11 of the belt are fixed values;

[0024] Second step: after the centralized controller 9 collects the weight data measured by the three weighing sensors, the weight G13 of the sliver laid on the belts on both sides of the second roller 4 is calculated by G2-G1-G3=G7+G8+G9-G4-G5-G6-G10-G11-G12=G13.

[0025] Third step: the centralized controller 9 automatically adjusts the motor speed according to the set weight value G+g of the sliver laid on the belts on both sides of the second roller 4, if G13>G+g, the motor speed is increased, if G13<G-g, the motor speed is decreased, if G+g>G13>G-g, the motor speed remains unchanged.

[0026] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A dynamic uniform adjustment control system for hemp strips based on the weight difference method, characterized in that... It includes a first weighing sensor, a second weighing sensor, a third weighing sensor, a first roller, a second roller, a third roller, a belt, a drive motor, and a centralized controller; the signal output ends of the first weighing sensor, the second weighing sensor, and the third weighing sensor are connected to the signal acquisition end of the centralized controller; the first weighing sensor, the second weighing sensor, and the third weighing sensor are respectively installed at the lower ends of the bearing seats of the first roller, the second roller, and the third roller to weigh the weights of the rollers; the belt continuously winds around the first roller, the second roller, and the third roller; the voltage input end of the drive motor is connected to the output end of the centralized controller, and the motor speed is adjusted by controlling the working voltage of the motor. Working control process: The first step: The first weighing sensor, the second weighing sensor, and the third weighing sensor respectively measure the weight G1 of the first roller, the weight G2 of the second roller body, and the weight G3 of the third roller, and send them to the centralized controller; the weight G1 of the first roller includes the weight G4 of the first roller itself, the weight G5 of the belt, and the weight G6 of the jute strip. Among them, the weight G4 of the first roller itself and the weight G5 of the belt are fixed values. The weight G2 of the second roller body includes the weight G7 of the second roller itself, the weight G8 of the belt, and the weight G9 of the jute strip. Among them, the weight G7 of the second roller itself and the weight G8 of the belt are fixed values; the weight G3 of the third roller body includes the weight G10 of the third roller itself, the weight G11 of the belt, and the weight G12 of the jute strip. Among them, the weight G10 of the third roller itself and the weight G11 of the belt are fixed values. The second step: After the centralized controller collects the weight data measured by the three weighing sensors, it calculates the weight G13 of the jute strip laid on the belts on both sides of the second roller by using G2 - G1 - G3 = G7 + G8 + G9 - G4 - G5 - G6 - G10 - G11 - G12 = G13. The third step: The centralized controller automatically adjusts the motor speed according to the set weight value G±g of the jute strip laid on the belts on both sides of the second roller 4. If G13 > G + g, it controls the motor speed to increase. If G13 < G - g, it controls the motor speed to slow down. If G + g > G13 > G - g, it controls the motor speed to remain unchanged.

2. The dynamic uniform adjustment control system for hemp strips based on the weight difference method according to claim 1, characterized in that... The first weighing sensor, the second weighing sensor, and the third weighing sensor adopt cantilever beam weighing sensors or tray weighing sensors, which are respectively used to measure the weights of the first roller, the second roller, and the third roller, and indirectly obtain the dynamic weight of the jute strip per unit length according to the weight difference between the rollers.

3. The dynamic uniform adjustment control system for hemp strips based on the weight difference method according to claim 1, characterized in that, The belt adopts a rubber material, and a fabric is placed on the upper surface of the belt. After passing through the first roller, it is pressed flat, then passes through the second roller, and finally passes through the third roller and is pressed flat again.

4. The dynamic uniform adjustment control system for hemp strips based on the weight difference method according to claim 1, characterized in that, The drive motor adopts a DC or AC speed-regulating motor, and the drive roller drives the first roller, the second roller, and the third roller to rotate together through the belt.

5. A dynamic uniform adjustment control system for hemp strips based on the weight difference method according to claim 1, characterized in that, The centralized controller includes a microprocessor module, a first weighing sensor interface, a second weighing sensor interface, a third weighing sensor interface, a display screen, buttons, an H-bridge motor drive circuit, a power supply module, and an RS485 module. The first, second, and third weighing sensor interfaces are respectively connected to the A / D port of the microprocessor module. The input terminal of the display screen is connected to the output I / O port of the microprocessor module. The output terminal of the buttons is connected to the input I / O port of the microprocessor module. The input terminal of the H-bridge motor drive circuit is connected to the output I / O port of the microprocessor module. The output terminal of the power supply module is connected to the power port of the microprocessor module. The input terminal of the RS485 module is connected to the communication interface of the microprocessor module.

6. A dynamic uniform adjustment control system for hemp strips based on the weight difference method according to claim 5, characterized in that... The microprocessor module uses an STM32 microprocessor.

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