CN212245713U

CN212245713U - Constant tension yarn feeder

Info

Publication number: CN212245713U
Application number: CN202022006730.6U
Authority: CN
Inventors: 黄毅杨; 骆汉城; 林庆龙
Original assignee: QUANZHOU JINGZHUN MACHINERY CO Ltd
Current assignee: QUANZHOU JINGZHUN MACHINERY CO Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-29
Anticipated expiration: 2030-09-14

Abstract

The utility model relates to the technical field of textile machinery, and provides a constant tension yarn feeder, which comprises a singlechip control circuit, a rotary encoder, a first magnet, a motor for feeding yarn and super yarn, a motor drive control circuit, a display screen, a tension setting circuit, a power supply circuit and a yarn tension detection device, the yarn tension detection device comprises a base, a rod arranged on the base, a second magnet, a spring and a Hall sensor, the Hall sensor detects the yarn tension compression pressure of the yarn feeding yarn in real time and sends the yarn tension compression pressure to the singlechip control circuit, the rotary encoder divides a motor shaft of the motor into 4096 parts by rotating the motor shaft for 360 degrees for one circle, accurately identifies the rotation angle of the motor shaft of the motor and the real-time position of a motor rotor by sensing a first magnet and sends the rotation angle and the real-time position of the motor rotor to a motor driving control circuit, the single chip microcomputer control circuit controls the speed of the motor through the motor drive control circuit to adjust the tension of the yarn. The utility model provides a current permanent tension send yarn ware can't realize effectively that tension balance control sends the problem of yarn.

Description

Constant tension yarn feeder

Technical Field

The utility model relates to the technical field of textile machinery, especially, relate to a constant tension yarn feeder.

Background

In textile production, it is known that a yarn feeder is an important component mechanism in a yarn production facility, which is used for conveying yarn. However, the yarn feeder of the prior art cannot adjust the conveying speed in real time according to the tension of the yarn, thereby affecting the yarn forming quality. There are also advanced yarn production devices on the market that use coordinated control of tension sensors, motors and overfeed mechanisms to regulate yarn tension. However, the tension sensor, the motor and the overfeeding mechanism need to be installed respectively, so that the integration level is low and the occupied space is large; and the sensitivity of the tension sensor is poor, the tension measurement is inaccurate, the yarn tension detection and the real-time adjustment and control of the motor cannot be effectively matched, and further the existing constant-tension yarn feeder cannot effectively realize the tension balance control yarn feeding.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a rational in infrastructure, real-time detection rapid adjustment, quick adjustment control motor effectively realize the constant tension of the stable balanced control of tension and send yarn ware.

In order to solve the technical problem, the utility model discloses take following scheme: a constant-tension yarn feeder comprises a single chip microcomputer control circuit, a rotary encoder, a first magnet, a motor for feeding super yarns, a motor drive control circuit, a display screen, a tension setting circuit, a power supply circuit and a yarn tension detection device, wherein the motor, the motor drive control circuit, the display screen, the tension setting circuit and the power supply circuit are arranged on the yarn feeding super yarns, the yarn tension detection device comprises a base, a lever, a second magnet, a spring and a Hall sensor, the lever, the second magnet, the spring and the Hall sensor are arranged on the base, the spring is arranged between the bottom of a power arm of the lever and the base, the second magnet is arranged at the bottom of a resistance arm, the Hall sensor is arranged on the base and located below the second magnet, a wire groove for the yarns to be detected to pass through is arranged on the power arm of the lever, the Hall sensor detects the yarn tension compression pressure of the yarn feeding yarns in real time, the rotary encoder divides a motor shaft of the motor into 4096 parts by 360 degrees in a circle, accurately identifies the rotation angle of the motor shaft and the real-time position of a motor rotor of the motor by sensing a first magnet and sends the rotation angle and the real-time position of the motor shaft to the motor drive control circuit, the output of the tension setting circuit is connected with the input of the single chip microcomputer control circuit, the single chip microcomputer control circuit controls the speed of the motor to adjust the tension of yarns through the motor drive control circuit, the output of the single chip microcomputer control circuit is connected with the display screen, and the power supply circuit supplies power to the single chip microcomputer control circuit, the rotary encoder, the motor drive control.

Further, the rotary encoder includes the TLE5012B-E1000 chip and its peripheral circuitry.

Furthermore, the singlechip control circuit is composed of a singlechip STM32F103RET6 chip and peripheral circuits thereof.

Further, the motor for supplying and feeding the yarn and the ultra-yarn is a direct current inductive brushless motor.

By adopting the technical scheme, the beneficial effects of the utility model are that: the displacement of the pressure end is amplified to the detection end through a lever structure of the yarn tension detection device, the Hall sensor is matched with the second magnet to detect the compression pressure of the yarn tension and send the compression pressure to the singlechip control circuit, the displacement distance is small in the composite detection process of the pressure detection end of the yarn tension detection device, the pressure detection precision is high to meet the precision requirement and the size requirement of the pressure detection of the yarn tension detection, the singlechip control circuit is matched with the linearization algorithm of iSmartOS to accurately convert the nonlinear deformation caused by the yarn tension compression pressure detection end into yarn tension data, the yarn tension data detected in real time is compared with the set tension, the singlechip control circuit sends the rotating speed adjustment requirement of the motor to the motor drive control circuit according to the difference value of the actual tension and the set tension and adjusts the speed of the motor by the motor drive control circuit, the rotary encoder rotates a motor shaft of the motor for 360 degrees for one circle and divides the motor shaft into 4096 parts, the motor shaft rotating angle and the motor rotor real-time position of the motor are accurately identified by sensing the first magnet and are sent to the motor drive control circuit, so that the motor drive control circuit efficiently and quickly controls and adjusts the motor according to the real-time condition of the motor sent by the rotary encoder and the motor rotating speed adjusting requirement sent by the single chip microcomputer control circuit, the starting speed of the motor is higher, the starting success rate is higher, the adjusting efficiency is higher, the real-time detection and quick adjustment are realized, the motor is quickly adjusted and controlled, further, the stable and balanced tension control yarn feeding is effectively realized, the adjustment control is accurate and efficient, if the actual tension is greater than the set tension, the motor is started or accelerated, the; when the actual tension is less than the set tension, the motor stops or decelerates, the yarn feeding speed is reduced, the yarn discharging tension is increased, the structure is reasonable, and the yarn feeding device can be widely popularized and applied.

Drawings

Fig. 1 is a schematic block circuit diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a yarn tension detecting device according to an embodiment of the present invention;

fig. 3 is a schematic view of a part of the structure of the rotary encoder, the first magnet and the motor according to the embodiment of the present invention;

fig. 4 is a schematic circuit diagram of a rotary encoder according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of the single chip control circuit in the embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a tension setting circuit according to an embodiment of the present invention;

fig. 7 is a schematic circuit diagram of a motor drive control circuit according to an embodiment of the present invention.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings, wherein the single-chip microcomputer control circuit, the rotary encoder, the first magnet, the motor for feeding the yarn with the super-thread, the motor driving control circuit, the display screen, the tension setting circuit and the power supply circuit are all the existing module components, and therefore the innovative design of the present invention will be described in the following embodiments.

Referring to fig. 1-7, the preferred constant tension yarn feeder of the present invention comprises a single chip microcomputer control circuit 1, a rotary encoder 2, a first magnet 3, a motor 5 for feeding yarn over the yarn, a motor driving control circuit 6, a display screen 7, a tension setting circuit 8, a power supply circuit 9 and a yarn tension detection device 4, wherein the single chip microcomputer control circuit 1 is composed of a single chip microcomputer STM32F103RET6 chip and its peripheral circuits, the yarn tension detection device 4 comprises a base 41, a lever 42 arranged on the base 41, a second magnet 43, a spring 44 and a hall sensor 45, the spring 44 is arranged between the bottom of the power arm of the lever 42 and the base 41, the second magnet 43 is arranged at the bottom of the resistance arm of the lever 42, the hall sensor 45 is arranged on the base 41 and located below the second magnet 43, a wire slot 421 for the yarn to be detected to pass through is arranged on the power arm of the lever 42, the Hall sensor 45 detects the yarn tension compression pressure of the yarn feeding yarn in real time and sends the yarn tension compression pressure to the single chip microcomputer control circuit 1, the motor 5 for supplying the yarn and feeding the super yarn is a direct-current inductive brushless motor, the first magnet 3 is embedded at the bottom of a motor shaft 51 of the motor 5, the rotary encoder 2 is arranged at the bottom of the motor 5 and induces the first magnet 3, the rotary encoder 2 comprises a TLE5012B-E1000 chip and a peripheral circuit thereof, the rotary encoder 2 enables the motor shaft 51 of the motor 5 to rotate for 360 degrees for one circle and divides the motor shaft 51 into 4096 parts, the motor shaft 51 rotation angle and the motor rotor real-time position of the motor 5 are accurately identified by inducing the first magnet 3 and sent to the motor drive control circuit 6, and a fifth pin (A), an eighth pin (B) and a first pin (C) of the rotary encoder 2 are respectively connected with a thirteenth pin (Ha) and a JY01 chip of the motor drive, A fourteenth pin (Hb) and a fifteenth pin (Hc) are connected, outputs of first pins of TLP181 chips U10 and U11 of the tension setting circuit 8 are connected with inputs of a 51 st pin and a 52 th pin of an STM32F103RET6 chip of the single chip microcomputer control circuit 1, the single chip microcomputer control circuit 1 controls the rotating speed of the motor 5 to adjust the tension of the yarn through the motor drive control circuit 6, the motor drive control circuit 6 is composed of a JY213L chip, a JY01 chip and peripheral circuits thereof, a first pin (UH), a fourth pin (UL), a second pin (VH), a fifth pin (VL), a third pin (WH) and a sixth pin (WL) of a JY213L chip of the motor drive control circuit 6 are respectively connected with a seventh pin (UH), an eighth pin (UL), a ninth pin (VH), a tenth pin (VL), an eleventh pin (WH) and a twelfth pin (WL) of a JY01 chip, so as to realize the rotation control of the motor 5, the sixth pin (M) of JY01 chip is connected with the fifty-eight pin of STM32F103RET6 chip of single-chip microcomputer control circuit 1 to transmit motor 5 rotation speed signal from JY01 chip to STM32F103RET6 chip of single-chip microcomputer control circuit 1, the fifth pin (TOUT) of JY01 chip is connected with the eighth pin of STM32F103RET6 chip by means of peripheral circuit to transmit torque value signal 0V-5V from JY01 chip to STM32F103RET6 chip, the first pin (Z/F) of JY01 chip is connected with the fifty-third pin of STM32F103RET6 chip of single-chip microcomputer control circuit 1 by means of peripheral circuit to transmit positive and negative rotation control signal 0V or 3.3V from STM32F103RET6 chip to JY01 chip, the sixteenth pin (VR) of JY01 chip is connected with the twenty-eighth pin of STM32F103RET6 chip of single-chip microcomputer control circuit 1 by means of peripheral circuit to transmit torque regulation control signal 890V-3 from JY 638 chip to STM 857 chip, and STM32F 857 chip is connected with peripheral circuit 01, and the power supply circuit 9 supplies power to the singlechip control circuit 1, the rotary encoder 2, the motor drive control circuit 6, the display screen 7 and the motor 5.

The utility model discloses a displacement of pressure end is enlarged to the detection end through lever structure of yarn tension detection device, the oppression pressure of yarn tension detection is sent to the singlechip control circuit by hall sensor cooperation second magnet, the displacement distance is little in the pressure detection end composite detection process of yarn tension detection device, the pressure detection precision height satisfies the accuracy requirement and the dimensional requirement of the pressure detection of yarn tension detection, the singlechip control circuit cooperates with the linearization algorithm of iSmartOS to convert the non-linear deformation that the yarn tension oppresses the pressure detection end and leads to and restore yarn tension data, the yarn tension data through real-time detection compares with the tension of settlement, according to the difference numerical value of actual tension and settlement tension the speed adjustment demand of motor is sent to the motor drive control circuit by the singlechip control circuit and the speed of motor is adjusted by the motor drive control circuit, the rotary encoder rotates a motor shaft of the motor for 360 degrees for one circle and divides the motor shaft into 4096 parts, the motor shaft rotating angle and the motor rotor real-time position of the motor are accurately identified by sensing the first magnet and are sent to the motor drive control circuit, so that the motor drive control circuit efficiently and quickly controls and adjusts the motor according to the real-time condition of the motor sent by the rotary encoder and the motor rotating speed adjusting requirement sent by the single chip microcomputer control circuit, the starting speed of the motor is higher, the starting success rate is higher, the adjusting efficiency is higher, the real-time detection and quick adjustment are realized, the motor is quickly adjusted and controlled, further, the stable and balanced tension control yarn feeding is effectively realized, the adjustment control is accurate and efficient, if the actual tension is greater than the set tension, the motor is started or accelerated, the; when the actual tension is less than the set tension, the motor stops or decelerates, the yarn feeding speed is reduced, the yarn discharging tension is increased, the structure is reasonable, and the yarn feeding device can be widely popularized and applied.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a constant tension yarn feeder, includes single chip microcomputer control circuit, rotary encoder, first magnet, supplies the yarn to feed motor, motor drive control circuit, display screen, tension setting circuit and the power supply circuit of surpassing the yarn, its characterized in that: the yarn tension detection device comprises a base, a lever arranged on the base, a second magnet, a spring and a Hall sensor, wherein the spring is arranged between the bottom of a power arm of the lever and the base, the second magnet is arranged at the bottom of a resistance arm, the Hall sensor is arranged on the base and is positioned below the second magnet, a wire slot for the yarn to be detected to pass through is arranged on the power arm of the lever, the Hall sensor detects the yarn tension compression pressure of the yarn feeding yarn in real time and sends the yarn tension compression pressure to a single chip microcomputer control circuit, the first magnet is embedded at the bottom of a motor shaft of the motor, the rotary encoder is arranged at the bottom of the motor and senses the first magnet, the rotary encoder divides the motor shaft of the motor into 4096 parts by rotating the motor shaft for 360 degrees and accurately identifies the motor shaft rotation angle and the real-time position of a motor rotor by sensing the first magnet and, the tension setting circuit output is connected with the single chip microcomputer control circuit input, the single chip microcomputer control circuit controls the speed of the motor through the motor drive control circuit to adjust the tension of the yarn, the single chip microcomputer control circuit output is connected with the display screen, and the power supply circuit supplies power to the single chip microcomputer control circuit, the rotary encoder, the motor drive control circuit, the display screen and the motor.

2. A constant tension yarn feeder according to claim 1, characterized in that: the rotary encoder includes a TLE5012B-E1000 chip and its peripheral circuitry.

3. A constant tension yarn feeder according to claim 1, characterized in that: the single chip microcomputer control circuit is composed of a single chip microcomputer STM32F103RET6 chip and peripheral circuits thereof.

4. A constant tension yarn feeder according to claim 1, characterized in that: the motor for supplying and feeding the yarn is a direct current inductive brushless motor.