A textile yarn length measuring device

Abstract

This invention relates to the field of textile testing equipment technology, specifically to a textile yarn length measuring device, which includes a housing with an open bottom and an installation opening at the top. Conveyor rollers are symmetrically installed between the inner walls of the two sides of the housing, and a conveyor belt is installed between the two conveyor rollers. The top of the conveyor belt passes through the installation opening and extends above the housing. A length measuring mechanism is disposed within the housing. An installation plate is slidably connected between the two sides of the housing away from the conveyor belt. The installation plate is U-shaped, and a rotating shaft is disposed between the inner walls of the two sides of the installation plate. The two sides of the rotating shaft pass through the installation plate and are movably connected to it. A driven pressure roller is installed on the side wall of the rotating shaft, with one side of the driven pressure roller contacting the top of the conveyor belt. A pleating and flattening mechanism is disposed near one side of the installation plate, and a transmission mechanism is disposed at the top of the installation plate.

Description

Technical Field

[0001] This invention relates to the field of textile testing equipment technology, and more specifically, to a textile yarn length measuring device. Background Technology

[0002] Textile gauze is a lightweight fabric made from cotton yarn or other fibers through a textile process, possessing a certain degree of breathability and softness. There are various materials used in textile gauze, including bamboo fiber gauze. Newer spinning materials use bamboo as raw material, extracting bamboo fibers through a special process to create the fabric. It has excellent moisture absorption, quickly absorbing sweat and moisture from the skin's surface, keeping the skin dry. It also possesses natural antibacterial properties, inhibiting common bacteria and reducing bacterial growth during use, thus lowering the risk of infection. Furthermore, bamboo fiber gauze is soft to the touch, comfortable to wear, and has low skin irritation.

[0003] A search revealed CN117329947B, which discloses a length measuring device for textile fabric production. The device includes a measuring component, a tensioning component, a winding component, and a cleaning component. The measuring component measures the fabric body; the tensioning component tensions the fabric body; the winding component winds the fabric body; and the cleaning component cleans the fabric body. This technical solution effectively solves the problems of inconvenience, space-consuming, cumbersome, and inefficient measurement of long fabrics when laid out manually, as uneven force applied by the operator often leads to inaccurate measurement results.

[0004] The aforementioned patent still has shortcomings in practical use. While the technical solution involves rolling up the yarn during measurement, wrinkles and overlaps inevitably occur during the feeding process. The electronic sensor used in this solution cannot simultaneously measure the length of wrinkles and overlaps when encountering wrinkled or overlapping yarn, making it unstable. Furthermore, wrinkled yarn not only severely affects its appearance but can also lead to uneven strength and susceptibility to breakage during subsequent use, reducing product yield. From a production efficiency perspective, wrinkles during rolling often require manual intervention or even re-rolling, significantly wasting time and labor costs and severely hindering production efficiency. Moreover, the difficulty in predicting and completely avoiding wrinkles greatly reduces the stability of product quality during production, increasing the difficulty of quality control for enterprises.

[0005] Based on this, the present invention discloses a textile yarn length measuring device. Summary of the Invention

[0006] To address the issue raised in the background art, where yarn wrinkles inevitably occur during the winding process, and existing length measuring devices use electronic sensors to measure the length of the woven yarn, this method cannot accurately detect the length of overlapping folds, thus resulting in instability. Therefore, this invention provides a woven yarn length measuring device, comprising a housing with an open bottom and an installation opening at the top. Conveyor rollers are symmetrically mounted between the inner walls of the two sides of the housing, and a conveyor belt is installed between the two conveyor rollers. The top of the conveyor belt passes through the installation opening and extends above the housing. A length measuring mechanism is provided. A mounting plate is slidably connected between the two sides of the housing that are away from the conveyor belt. The mounting plate is U-shaped. A rotating shaft is provided between the inner walls of the two sides of the mounting plate. The two sides of the rotating shaft pass through the mounting plate and are movably connected to the mounting plate. A driven pressure roller is installed on the side wall of the rotating shaft. One side of the driven pressure roller contacts the top of the conveyor belt. A pleating and flattening mechanism is provided inside the mounting plate near one side. A transmission mechanism is provided on the top of the mounting plate. The transmission mechanism is movably connected to the pleating and flattening mechanism. The transmission mechanism is fixedly connected to one end of the rotating shaft. Limiting mechanisms are provided between the outer walls of the two sides of the mounting plate and the outer wall of the housing.

[0007] Preferably, the length measuring mechanism includes a tape measure winding rod, and two tape measure winding rods are provided. The two ends of the tape measure winding rods pass through the housing and are movably connected to the housing. A limit baffle is fixedly connected to the side wall of the tape measure winding rod. Two limit baffles are provided on the same tape measure winding rod. A rectangular opening is symmetrically opened on the top of the housing. A tape measure body is installed on the side wall of one of the tape measure winding rods. One end of the tape measure body passes through the rectangular opening and is fixedly connected to the other tape measure winding rod. A return rocker is fixedly connected to one end of one of the tape measure winding rods.

[0008] Preferably, the pleating and flattening mechanism includes a lifting rod, the top end of which passes through a mounting plate and is movably connected to the mounting plate. A racetrack ring is fixedly connected to the top end of the lifting rod. A first U-shaped plate is fixedly connected to the lifting rod near the bottom on the side opposite to the inner wall of the mounting plate. A push plate is movably connected between the inner walls of the two sides of the first U-shaped plate. Damping arc-shaped wheels are movably connected to the opposite sides of the two push plates. Movable openings are provided on the four sides of the lifting rod. Movable rods are provided in the movable openings. Both ends of the movable rods extend to the outside of the movable openings and have movable grooves. A connecting rod is movably connected between the inner walls of the two movable grooves. A second U-shaped plate is fixedly connected to one side of the push plate near the bottom. One end of the cylindrical block extends into the second U-shaped plate and is movably connected to the second U-shaped plate. A movable spring is fixedly connected between the top of the movable rod and the top of the inner cavity of the movable opening.

[0009] Preferably, the transmission mechanism includes two rectangular plates, each fixed to the top of the mounting plate. A transmission rod is disposed between the two rectangular plates, with both ends of the transmission rod passing through and movably connected to the rectangular plates. A transmission plate is fixedly connected to one end of the transmission rod, and a cylindrical block is fixedly connected to one side of the transmission plate. One end of the cylindrical block extends into the runway ring. Second grooved pulleys are fixedly connected to the ends of the rectangular plates and the rotating shaft that are away from the mounting plate. A second belt is installed between the two second grooved pulleys.

[0010] Preferably, the limiting mechanism includes a limiting plate, which is U-shaped. One side of the limiting plate is fixedly connected to the outer wall of the housing. A support plate is provided inside the limiting plate. One side of the support plate is fixedly connected to the outer wall of the mounting plate. A support spring is fixedly connected to the top of the support plate. A screw hole is provided at the top of the limiting plate. A screw rod is installed in the screw hole. The bottom end of the screw rod extends into the limiting plate and is fixedly connected to a pressure plate. The pressure plate is in contact with the support spring. A knob is fixedly connected to the top end of the screw rod.

[0011] Preferably, a first grooved wheel is fixedly connected to the side wall of each of the two tape measure winding rods, and a first belt is installed between the two first grooved wheels.

[0012] Preferably, an anti-wear roller is installed between the inner walls of the two rectangular openings, one side of which passes through the rectangular opening and extends to the top of the housing, and the anti-wear roller is located below the measuring tape body.

[0013] Preferably, the left and right side walls of the housing are respectively fixedly connected with extension plates, and the two extension plates are respectively arranged in a U-shape.

[0014] Preferably, the mounting plate has T-shaped grooves symmetrically formed on the side opposite to the housing, and the housing has T-shaped sliders symmetrically formed on the side opposite to the mounting plate to match the T-shaped sliders.

[0015] Preferably, the conveyor belt and the driven pressure roller are both made of rubber.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this textile yarn length measuring device, through the cooperation between the conveyor belt, the measuring tape body, the first belt, the driven pressure roller, and the measuring tape winding rod, the textile yarn passes through the bottom of the driven pressure roller, and the driven pressure roller and the conveyor belt rotate simultaneously due to friction. At this time, the measuring tape body sandwiched in the middle also rotates, so that the measuring tape body and the textile yarn rotate synchronously, thereby achieving the purpose of measuring the length of the textile yarn and effectively improving the measurement efficiency.

[0017] 2. In this textile yarn length measuring device, through the mutual cooperation between the driven pressure roller, transmission rod, second belt, transmission plate, raceway ring, lifting rod, damping arc wheel and push plate, the driven pressure roller rotates while the transmission plate rotates through the second belt, so that the raceway ring and damping arc wheel move up and down reciprocally, achieving the work of stretching both sides and horizontally of the textile yarn, which can effectively flatten the wrinkles and overlaps of the textile yarn, thereby effectively improving the measurement accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of the present invention; Figure 3 This is a bottom view of the internal structure of the housing of the present invention; Figure 4 This is a schematic diagram of the internal structure of the mounting plate of the present invention; Figure 5 This is a three-dimensional structural diagram of the housing of the present invention; Figure 6 This is a three-dimensional structural diagram of the belt ruler of the present invention; Figure 7 This is a schematic diagram showing the position distribution of the movable springs in this invention; Figure 8 This is a schematic diagram showing the positional distribution of the screw holes in this invention; Figure 9 This is a three-dimensional structural diagram of the pressure plate of the present invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Housing; 2. Mounting opening; 3. Conveyor roller; 4. Conveyor belt; 5. Measuring tape take-up rod; 6. Limiting baffle; 7. Measuring tape body; 8. Rectangular opening; 9. Anti-wear roller; 10. Return rocker arm; 11. First grooved wheel; 12. First belt; 13. Extension plate; 14. Pressure plate; 15. Movable spring; 16. Screw; 17. Screw hole; 18. Support spring; 19. Mounting plate; 20. Driven pressure roller; 21. 1. Rectangular plate; 22. Transmission rod; 23. Second grooved wheel; 24. Second belt; 25. Transmission plate; 26. Cylindrical block; 27. Track ring; 28. Lifting rod; 29. ​​Rotating shaft; 30. First U-shaped plate; 31. Push plate; 32. Damping arc wheel; 33. Movable opening; 34. Movable rod; 35. Movable groove; 36. Connecting rod; 37. Second U-shaped plate; 38. Support plate; 39. Limiting plate; 40. Knob. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Existing length measuring devices use electronic sensors to measure the length of textile yarns, which cannot accurately detect the length of yarns that are folded and overlapped, thus making them unstable in use.

[0022] Therefore, the present invention provides a textile yarn length measuring device, see [link to device]. Figure 1 - Figure 9 As shown, it includes a housing 1, the bottom of which is not closed, and an installation opening 2 at the top of the housing 1. Conveying rollers 3 are symmetrically installed between the inner walls of the two sides of the housing 1. A conveyor belt 4 is installed between the two conveying rollers 3. The top of the conveyor belt 4 passes through the installation opening 2 and extends above the housing 1. A length measuring mechanism is provided inside the housing 1. An installation plate 19 is slidably connected between the two sides of the housing 1 that are far from the conveyor belt 4. The installation plate 19 is U-shaped. A rotating shaft 29 is provided between the inner walls of the two sides of the installation plate 19. The two sides of the rotating shaft 29 pass through the installation plate 19 and are movably connected to the installation plate 19. A driven pressure roller 20 is installed on the side wall of the rotating shaft 29. One side of the driven pressure roller 20 contacts the top of the conveyor belt 4. A pleating and flattening mechanism is provided inside the installation plate 19 near one side. A transmission mechanism is provided at the top of the installation plate 19. The transmission mechanism is movably connected to the pleating and flattening mechanism. The transmission mechanism is fixedly connected to one end of the rotating shaft 29. Limiting mechanisms are provided between the outer walls of the two sides of the installation plate 19 and the outer wall of the housing 1. Example

[0023] like Figure 1 - Figure 6 As shown, the length measuring mechanism includes a tape measure winding rod 5. There are two tape measure winding rods 5. Both ends of the tape measure winding rod 5 pass through the housing 1 and are movably connected to the housing 1. Limiting baffles 6 are fixedly connected to the side wall of the tape measure winding rod 5. There are two limiting baffles 6 on the same tape measure winding rod 5. Rectangular openings 8 are symmetrically opened on the top of the housing 1. A tape measure body 7 is installed on the side wall of one of the tape measure winding rods 5. One end of the tape measure body 7 passes through the rectangular opening 8 and is fixedly connected to the other tape measure winding rod 5. A return rocker arm 10 is fixedly connected to one end of one of the tape measure winding rods 5.

[0024] During operation, first align the initial position of the measuring tape body 7 with the position of the driven pressure roller 20. Then, place the textile fabric to be measured under the driven pressure roller 20 and pass it through. In this way, the driven pressure roller 20 will press the textile fabric into stable contact with the measuring tape body 7, and at the same time, the driven pressure roller 20 will also press the textile fabric into contact with the conveyor belt 4. This mainly serves to increase friction and prevent slippage. Next, pull the textile fabric to the left. Through friction, the measuring tape body 7 and the conveyor belt 4 will rotate counterclockwise. At this time, the counterclockwise rotation of the measuring tape body 7 is synchronized with the lateral displacement of the textile fabric, which enables the measurement of the textile fabric. Example

[0025] like Figure 2 and Figure 7 As shown, the pleating and flattening mechanism includes a lifting rod 28, the top of which passes through the mounting plate 19 and is movably connected to the mounting plate 19. A racetrack ring 27 is fixedly connected to the top of the lifting rod 28. A first U-shaped plate 30 is fixedly connected to the side of the lifting rod 28 opposite to the inner wall of the mounting plate 19 near the bottom. A push plate 31 is movably connected between the inner walls of the two sides of the first U-shaped plate 30. A damping arc wheel 32 is movably connected to the opposite side of the two push plates 31. Movable openings 33 are opened on the four sides of the lifting rod 28. Movable rods 34 are installed in the movable openings 33. Both ends of the movable rods 34 extend to the outside of the movable openings 33 and have movable grooves 35. A connecting rod 36 is movably connected between the inner walls of the two movable grooves 35. A second U-shaped plate 37 is fixedly connected to one side of the push plate 31 near the bottom. One end of the cylindrical block 26 extends into the second U-shaped plate 37 and is movably connected to the second U-shaped plate 37. A movable spring 15 is fixedly connected between the top of the movable rod 34 and the top of the inner cavity of the movable opening 33.

[0026] like Figure 1 - Figure 9 As shown, the transmission mechanism includes two rectangular plates 21, which are respectively fixed to the top of the mounting plate 19. A transmission rod 22 is provided between the two rectangular plates 21. Both ends of the transmission rod 22 pass through the rectangular plates 21 and are movably connected to them. A transmission plate 25 is fixedly connected to one end of the transmission rod 22. A cylindrical block 26 is fixedly connected to one side of the transmission plate 25. One end of the cylindrical block 26 extends into the runway ring 27. Second grooved pulleys 23 are fixedly connected to the ends of the rectangular plates 21 and the rotating shaft 29 that are away from the mounting plate 19, respectively. A second belt 24 is installed between the two second grooved pulleys 23.

[0027] During operation, to prevent wrinkles and overlaps in the fed textile fabric, the driven pressure roller 20 rotates due to friction as the fabric shifts. This drives the driven pressure roller 20 to rotate via the second belt 24, which in turn drives the upper second grooved wheel 23 to rotate. The second grooved wheel 23 then drives the transmission plate 25 and the cylindrical block 26 to rotate via the transmission rod 22. The cylindrical block 26 slides back and forth within the racetrack ring 27. Because the cylindrical block 26 follows a circular motion trajectory, it can cause the racetrack ring 27 and the lifting rod 28 to rise or fall as a whole. At this time, the lifting rod 28 drives the two damping arc-shaped wheels 32 to descend. The two damping arc wheels 32 push the textile yarn to both sides as the lifting rod 28 descends. The damping arc wheels 32 have a certain resistance when rotating, so they exert a pulling force on the textile yarn when in contact with it. Although the textile yarn is pulled, the damping arc wheels 32 will also rotate. When the lifting rod 28 descends, it causes the two push plates 31 to swing upwards, and pushes the movable rod 34 through the connecting rod 36 to compress the movable spring 15. Simultaneously, through the reaction force of the movable spring 15, the two damping arc wheels 32 are always in stable contact with the textile yarn when descending.

[0028] The movable spring 15 in this technical solution is specifically a damping spring, a relatively mature technology. This type of damping spring is usually used in conjunction with a damper or has its own damping characteristics. The damping effect is to impede the movement of the spring, causing it to experience resistance during rebound, thus slowing down the rebound speed. Damping springs are commonly used in applications requiring precise control of rebound speed and reduction of vibration. Therefore, in this technical solution, the rising speed of the lifting rod 28 is greater than the rebound speed of the movable spring 15. Thus, when the lifting rod 28 drives the damping arc wheel 32 to rise, the damping arc wheel 32 will preferentially disengage from the textile fabric. During the rising and falling process, both damping arc wheels 32 return to their initial positions. Furthermore, the resistance of the damping spring can be adjusted according to actual use to control the rebound speed, ensuring that after the two damping arc wheels 32 descend and pull the textile fabric to both sides, they do not pull the textile fabric together in the middle when rising again, thus preventing the fabric from overlapping again.

[0029] For details, see Figure 1 , Figure 8 and Figure 9As shown, the limiting mechanism includes a limiting plate 39, which is U-shaped. One side of the limiting plate 39 is fixedly connected to the outer wall of the housing 1. A support plate 38 is provided inside the limiting plate 39. One side of the support plate 38 is fixedly connected to the outer wall of the mounting plate 19. A support spring 18 is fixedly connected to the top of the support plate 38. A screw hole 17 is provided at the top of the limiting plate 39. A screw rod 16 is installed in the screw hole 17. The bottom end of the screw rod 16 extends into the limiting plate 39 and is fixedly connected to a pressure plate 14. The pressure plate 14 is in contact with the support spring 18. A knob 40 is fixedly connected to the top of the screw rod 16.

[0030] The limiting mechanism can increase the downward pressure of the driven pressure roller 20 when needed, thereby increasing the friction between the driven pressure roller 20 and the textile fabric. This prevents slippage between the textile fabric and the measuring tape body 7 and the driven pressure roller 20, which would otherwise cause inaccurate measurement data. Furthermore, the driven pressure roller 20, the conveyor belt 4, and the measuring tape body 7 are all made of rubber, which increases the friction between them and the textile fabric, further preventing slippage. In addition, during actual operation, the textile fabric should not be pulled too quickly at the beginning. The speed of pulling the textile fabric can be gradually increased until it stabilizes at a suitable speed, which can further reduce the likelihood of slippage between the textile fabric and the measuring tape body 7.

[0031] For details, see Figure 1 As shown, two tape measure rewinding rods 5 are respectively fixedly connected to the side walls of the first grooved wheel 11, and a first belt 12 is installed between the two first grooved wheels 11. Because the two tape measure rewinding rods 5 are connected by the first belt 12, when the tape measure body 7 rotates counterclockwise, the two tape measure rewinding rods 5 and the limiting baffle 6 rotate counterclockwise synchronously, which plays the role of one unwinding and the other rewinding. This can effectively prevent the tape measure body 7 from becoming loose.

[0032] For details, see Figure 5 and Figure 6 As shown, in order to prevent contact friction between the tape measure body 7 and the rectangular opening 8, anti-wear rollers 9 are installed between the inner walls on both sides of the two rectangular openings 8. One side of the anti-wear roller 9 passes through the rectangular opening 8 and extends to the top of the housing 1. The anti-wear roller 9 is located below the tape measure body 7. This can reduce wear on the tape measure body 7, avoid noise, and effectively increase the service life of the tape measure body 7.

[0033] For details, see Figure 1 As shown, in order to straighten the woven yarn more quickly and improve the convenience of use, extension plates 13 are fixedly connected to the left and right side walls of the housing 1 respectively. The two extension plates 13 are arranged in a U-shape, which can limit the woven yarn to a certain extent and prevent the woven yarn from shifting.

[0034] For details, see Figure 4 and Figure 5 As shown, in order to adapt to textile fabrics of different thicknesses, the mounting plate 19 can float up and down. Therefore, T-shaped grooves are symmetrically provided on the side of the mounting plate 19 opposite to the housing 1, and T-shaped sliders matching the T-shaped sliders are symmetrically provided on the side of the housing 1 opposite to the mounting plate 19. The T-shaped sliders and T-shaped grooves can limit the mounting plate 19, so that the mounting plate 19 can float up and down in a stable vertical direction, which can effectively adapt to textile fabrics of different thicknesses.

[0035] For details, see Figure 4 As shown, in order to avoid slippage between the textile fabric and the driven pressure roller 20, it is necessary to increase the friction. Therefore, the conveyor belt 4 and the driven pressure roller 20 are made of rubber. The rubber material is relatively soft, which can increase the friction while also protecting the textile fabric.

[0036] In summary, this effectively solves the existing technical problems.

[0037] Working principle: First, move the housing 1 to the desired location and place the existing winding device on the left side of the housing 1. Then, rotate the tape measure winding rod 5, the limiting baffle 6, and one of the first grooved pulleys 11 forward via the return rocker 10. Simultaneously, one of the first grooved pulleys 11 drives the other tape measure winding rod 5 to rotate forward via the first belt 12, so that the tape measure body 7 on the left tape measure winding rod 5 is completely transferred to the right tape measure winding rod 5. Next, adjust the initial position of the scale on the tape measure body 7 to below the driven pressure roller 20. Then, pass the textile yarn through the bottom of the driven pressure roller 20. At this time, the bottom of the driven pressure roller 20 and the top of the conveyor belt 4 are in contact with the textile yarn. At this time, the tape measure body 7 is clamped between the textile yarn and the conveyor belt 4. In this way, when the woven fabric shifts to the left, the friction will drive the driven pressure roller 20 and the conveyor belt 4 to rotate, simultaneously causing the clamped measuring tape body 7 to shift to the left. This allows the left-side measuring tape winding rod 5 to wind up the shifted measuring tape body 7, then pulls the woven fabric, connecting it to the existing winding device. The winding device continuously drives the woven fabric to slide to the left. When the driven pressure roller 20 rotates, it also drives the second belt 24 to rotate via the second grooved wheel 23 on the rotating shaft 29. This causes the second grooved wheel 23 and the transmission rod 22 to rotate synchronously, and the transmission rod 22 drives the transmission plate 25 and the cylindrical block 26 to rotate. When the cylindrical block 26 rotates to its highest point, it will drive the raceway ring 27 to rise to its limit. When it reaches the lowest position, it will also cause the track ring 27 to descend to the lowest position. The continuous rotation of the transmission plate 25 can drive the track ring 27 and the lifting rod 28 to move up and down reciprocally. When the lifting rod 28 descends, the damping arc wheel 32 contacts the textile yarn, and as it continues to descend, the two push plates 31 swing outward. When it swings outward, it will push the movable rod 34 to rise through the connecting rod 36, compressing the movable spring 15, which can achieve the effect of stretching the textile yarn on both sides. In addition, the damping arc wheel 32 will rotate with the displacement of the textile yarn, but the rotation of the damping arc wheel 32 has a moving damping effect, so that when the textile yarn is stretched on both sides, it will also have a horizontal stretching effect. When the lifting rod 28 rises, it will drive the two push plates 31 to move up and down. 1. The damping arc wheel 32 rises, and simultaneously, the rebound force of the movable spring 15 pushes the movable rod 34 downward, causing the two push plates 31 to swing back to their initial positions. This allows for continuous stretching of the folds and overlaps in the textile fabric. Next, it is necessary to observe the scale on the measuring tape body 7. If the specified winding length is about to be reached, the winding speed of the existing winding equipment needs to be slowed down, causing the driven pressure roller 20 and the measuring tape body 7 to rotate at a reduced speed. When the textile fabric is stretched to the required length, the existing winding equipment is turned off, and the driven pressure roller 20 and the measuring tape body 7 will also stop synchronously. Then, the next step of operation on the textile fabric can be performed. The above operation effectively achieves the purpose of measuring the length of the textile fabric and smoothing out folds and overlaps.This effectively improves measurement efficiency. Furthermore, when re-measuring is needed, the measuring tape rewind lever 5, transferred to the left, can be moved back to the right using the aforementioned operation. This repetitive process allows for the measurement of more textile yarn lengths. Additionally, if the textile yarn is thin, slippage may occur when the driven pressure roller 20 exerts less pressure. Therefore, the downward pressure of the mounting plate 19 and the driven pressure roller 20 can be adjusted as needed. First, the screw 16 can be rotated by knob 40 to lower the pressure plate 14. The pressure plate 14 compresses the support spring 18, and the synchronous rebound force of the support spring 18 presses down on the support plate 38. Because the support plate 38 is fixedly connected to the mounting plate 19, the downward pressure of the mounting plate 19 and the driven pressure roller 20 can be increased. It is important to note that the number of rotations of the two knobs 40 should be kept as consistent as possible to ensure more even downward pressure from the driven pressure roller 20.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A textile yarn length measuring device, comprising a housing (1), characterized in that: The bottom of the housing (1) is not closed, and the top of the housing (1) has an installation opening (2). Conveyor rollers (3) are symmetrically installed between the inner walls of the two sides of the housing (1). A conveyor belt (4) is installed between the two conveyor rollers (3). The top of the conveyor belt (4) passes through the installation opening (2) and extends to the top of the housing (1). A length measuring mechanism is provided inside the housing (1). An installation plate (19) is slidably connected between the two sides of the housing (1) that are far away from the conveyor belt (4). The installation plate (19) is U-shaped. A rotating joint is provided between the inner walls of the two sides of the installation plate (19). Shaft (29), the two sides of the shaft (29) pass through the mounting plate (19) and are movably connected to the mounting plate (19). A driven pressure roller (20) is installed on the side wall of the shaft (29). One side of the driven pressure roller (20) is in contact with the top of the conveyor belt (4). A pleating and flattening mechanism is provided in the mounting plate (19) near one side. A transmission mechanism is provided on the top of the mounting plate (19). The transmission mechanism is movably connected to the pleating and flattening mechanism. The transmission mechanism is fixedly connected to one end of the shaft (29). Limiting mechanisms are provided between the outer walls of the two sides of the mounting plate (19) and the outer wall of the housing (1). The pleating and flattening mechanism includes a lifting rod (28), the top of which passes through the mounting plate (19) and is movably connected to the mounting plate (19). A track ring (27) is fixedly connected to the top of the lifting rod (28). A first U-shaped plate (30) is fixedly connected to the side of the lifting rod (28) opposite to the inner wall of the mounting plate (19) near the bottom. Push plates (31) are movably connected between the inner walls of the two sides of the first U-shaped plate (30). Damping arc wheels (32) are movably connected to the opposite sides of the two push plates (31). Movable openings (3) are opened on the four sides of the lifting rod (28). 3) An movable rod (34) is provided in the movable opening (33). The two ends of the movable rod (34) extend to the outside of the movable opening (33) and are provided with movable grooves (35). A connecting rod (36) is movably connected between the inner walls on both sides of the two movable grooves (35). A second U-shaped plate (37) is fixedly connected to one side of the push plate (31) near the bottom. One end of the connecting rod (36) extends into the second U-shaped plate (37) and is movably connected to the second U-shaped plate (37). A movable spring (15) is fixedly connected between the top of the movable rod (34) and the top of the inner cavity of the movable opening (33).

2. The textile yarn length measuring device according to claim 1, characterized in that: The length measuring mechanism includes a tape measure winding rod (5), and there are two tape measure winding rods (5). The two ends of the tape measure winding rod (5) pass through the housing (1) and are movably connected to the housing (1). A limit baffle (6) is fixedly connected to the side wall of the tape measure winding rod (5). There are two limit baffles (6) on the same tape measure winding rod (5). A rectangular opening (8) is symmetrically opened on the top of the housing (1). A tape measure body (7) is installed on the side wall of one of the tape measure winding rods (5). One end of the tape measure body (7) passes through the rectangular opening (8) and is fixedly connected to the other tape measure winding rod (5). A return rocker (10) is fixedly connected to one end of one of the tape measure winding rods (5).

3. The textile yarn length measuring device according to claim 1, characterized in that: The transmission mechanism includes two rectangular plates (21) which are fixed to the top of the mounting plate (19). A transmission rod (22) is provided between the two rectangular plates (21). The two ends of the transmission rod (22) pass through the rectangular plates (21) and are movably connected to the rectangular plates (21). A transmission plate (25) is fixedly connected to one end of the transmission rod (22). A cylindrical block (26) is fixedly connected to one side of the transmission plate (25). One end of the cylindrical block (26) extends into the runway ring (27). The ends of the rectangular plates (21) and the rotating shaft (29) that are far from the mounting plate (19) are fixedly connected to second grooved wheels (23). A second belt (24) is installed between the two second grooved wheels (23).

4. The textile yarn length measuring device according to claim 3, characterized in that: The limiting mechanism includes a limiting plate (39), which is U-shaped. One side of the limiting plate (39) is fixedly connected to the outer wall of the housing (1). A support plate (38) is provided inside the limiting plate (39). One side of the support plate (38) is fixedly connected to the outer wall of the mounting plate (19). A support spring (18) is fixedly connected to the top of the support plate (38). A screw hole (17) is opened at the top of the limiting plate (39). A screw rod (16) is installed in the screw hole (17). The bottom end of the screw rod (16) extends into the limiting plate (39) and is fixedly connected to a pressure plate (14). The pressure plate (14) is in contact with the support spring (18). A knob (40) is fixedly connected to the top of the screw rod (16).

5. The textile yarn length measuring device according to claim 2, characterized in that: The two tape measure winding rods (5) are respectively fixedly connected to the side walls of the first grooved wheel (11), and the two first grooved wheels (11) are connected to the first belt (12).

6. The textile yarn length measuring device according to claim 2, characterized in that: A wear-resistant roller (9) is installed between the inner walls of the two rectangular openings (8). One side of the wear-resistant roller (9) passes through the rectangular opening (8) and extends to the top of the housing (1). The wear-resistant roller (9) is located below the tape measure body (7).

7. The textile yarn length measuring device according to claim 1, characterized in that: The left and right side walls of the housing (1) are respectively fixedly connected with extension plates (13), and the two extension plates (13) are respectively arranged in a U shape.

8. The textile yarn length measuring device according to claim 1, characterized in that: The mounting plate (19) is symmetrically provided with T-shaped grooves on the side opposite to the housing (1), and the housing (1) is symmetrically provided with T-shaped sliders that match the T-shaped sliders on the side opposite to the mounting plate (19).

9. The textile yarn length measuring device according to claim 1, characterized in that: The conveyor belt (4) and the driven pressure roller (20) are both made of rubber.

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