Warp knitting cloth anti-shrinkage device for warp knitting machine
By designing a warp knitting anti-shrinkage device for warp knitting machines, the airflow and dust collection system are used to remove thread tips and dust impurities on the surface of warp knitting cloth, the edge problem caused by uneven stress during the winding process is solved, and a cleaner and smoother winding effect is achieved.
Patent Information
- Application Number
- CN202421774452.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In the prior art, during the winding process, warp knitted cloth has uneven force due to thread heads and dust impurities on the surface, resulting in uneven force on the winding, causing edges to tilt or wrinkle.
A warp knitted cloth anti-shrink device is designed, including a winding box, a winding barrel, a guide barrel, a dust collecting box and an exhaust duct. Blow the surface of the warp knitted cloth by airflow, remove thread tips and dust impurities, and effectively collect and filter impurities through dust collecting boxes and mesh plates.
Effectively remove thread tips and dust impurities on the surface of warp knitted cloth, ensure the neatness of warp knitted cloth during the rolling process, reduce wrinkles and unevenness, avoid shrinkage problems, and maintain the flatness of warp knitted cloth.
Smart Images
Figure CN222821815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of warp knitting machines, in particular to a warp knitting cloth shrinkage prevention device used for warp knitting machines. Background Art
[0002] A warp knitting machine is a textile machine specifically used to produce warp knitted fabrics.
[0003] In the prior art, the warp knitting machine is mainly composed of a frame, a driving mechanism, a warp feed mechanism, a weaving mechanism, an auxiliary machine, etc. The warp knitting machine weaves weft yarns on the warp yarns through a series of hooks and needles. The driving mechanism drives the weaving mechanism to move through a motor. The warp feed mechanism is responsible for transporting the warp yarns, and the weaving mechanism weaves weft yarns on the warp yarns. The auxiliary machine performs cutting, hot pressing, shaping and other processes on the fabric to form the fabric. After the warp knitted fabric is processed, the warp knitted fabric needs to be wound up.
[0004] During the processing of warp knitted fabrics, thread ends and dust impurities will remain on the surface of the warp knitted fabrics, which can easily lead to uneven force when the warp knitted fabrics are rolled up in the same straight line, causing the edges of the warp knitted fabrics to tilt and wrinkle as a whole, resulting in the edges on both sides of the warp knitted fabrics being stretched or contracted. Utility Model Content
[0005] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the warp knitted fabric is easily subjected to uneven force during winding, resulting in tilting or wrinkling of the edges due to the presence of thread ends and dust impurities on the surface of the warp knitted fabric during the winding process.
[0006] In order to solve the above technical problems, the utility model provides a warp knitting cloth anti-shrinkage device for a warp knitting machine.
[0007] In one embodiment of the utility model, it includes a winding box; a winding drum is installed in the middle of the winding box; the winding drum is arranged inside the winding box; a first guide drum is fixedly connected to the top of the winding box; a second guide drum is installed on the side wall of the winding box; a third guide drum is installed on the side wall of the winding box; a dust box is fixedly connected to the middle of the second guide drum; the side wall of the dust box is arranged in an arc shape; a first through groove is opened at the bottom of the dust box; two fixing rods are fixedly connected to the end of the dust box; a dust collecting cover is fixedly connected to the end of the dust collecting cover; a plurality of exhaust holes are opened in the middle of the exhaust pipe; a plurality of exhaust holes are arranged in the internal position of the dust collecting cover; a connecting pipe is fixedly connected to the middle of the exhaust pipe; by blowing air flow to the surface of the warp knitted cloth, the thread ends and dust impurities on the surface of the warp knitted cloth can be effectively removed, the warp knitted cloth can be made neater during the winding process, and the thread ends and dust impurities remaining on the surface of the warp knitted cloth can be effectively reduced, resulting in wrinkles and unevenness during the winding process.
[0008] In one embodiment of the utility model, two slide grooves are fixedly connected to the side wall of the dust box; the two slide grooves are arranged opposite to each other; a mesh plate is slidably connected to the middle of the slide groove; the slide groove can effectively reduce the collected dust and impurities from being discharged to the outside along the surface of the dust box, effectively reducing the dust and impurities and lint from drifting to the outside through the airflow and causing pollution to the working environment.
[0009] In one embodiment of the utility model, two groups of threaded brushes are fixedly connected to the side walls of the dust collecting box; each group of the threaded brushes is arranged on both sides of the mesh plate; the ends of the threaded brushes are in contact with the surface of the mesh plate; the threaded brushes can effectively reduce the dust and impurities intercepted by the mesh plate for a long time for collection, and can effectively reduce the wear and corrosion caused by the accumulation of dust and impurities on the surface of the mesh plate.
[0010] In one embodiment of the utility model, two groups of baffles are fixedly connected to the side wall of the dust collecting box; the two groups of baffles are arranged opposite to each other; the baffles are arranged in an arc shape; the baffles can effectively collect the dust and impurities that slide down, reduce the dust and impurities from entering the warp knitted fabric surface again along the side wall of the dust collecting box, and effectively collect the dust and impurities.
[0011] In one embodiment of the utility model, two telescopic rods are fixedly connected to the bottom of the winding box; the two telescopic rods are fixedly connected to the bottom position of the winding drum; a spring is fixedly connected to the bottom of the winding box; the spring is fixedly connected to the outside of the telescopic rod; a fixed block is fixedly connected to the ends of the telescopic rod and the spring; a first roller is rotatably connected to the middle part of the two fixed blocks; the first roller can effectively keep the warp knitted cloth and the winding drum in close contact during the winding process, and can apply a certain tension to the warp knitted cloth to keep the warp knitted cloth flat during the winding process.
[0012] In one embodiment of the utility model, the side wall of the fixed block is hinged with an elastic rod; the middle parts of the two elastic rods are rotatably connected to two second rollers; the two second rollers can effectively increase the contact area with the warp knitted cloth, and the pressure of the second rollers can make the warp knitted cloth fit more closely together when winding.
[0013] In one embodiment of the utility model, a vacuum cleaner is fixedly connected to the side wall of the winding box; a dust suction pipe is fixedly connected to the middle part of the vacuum cleaner; the middle part of the dust suction pipe passes through the side wall of the winding box; the dust suction pipe is Y-shaped; two second through grooves are opened in the middle part of the dust suction pipe; the two second through grooves are arranged opposite to each other; dust and impurities on the surface of the warp knitted fabric are sucked away through the second through grooves, so that tiny particles and uneven parts on the surface of the warp knitted fabric can be effectively removed.
[0014] In one embodiment of the utility model, a connecting rod is fixedly connected to the middle of the two fixed blocks; a scraper strip is fixedly connected to the top of the connecting rod; the scraper strip can effectively scrape off the fluff and tiny impurities attached to the surface of the warp knitted fabric, effectively maintaining the cleanliness of the surface of the warp knitted fabric.
[0015] The above technical solution of the utility model has the following advantages compared with the prior art:
[0016] The utility model discloses a warp knitted cloth shrinkage prevention device for a warp knitting machine, which can effectively remove thread ends and dust impurities on the surface of the warp knitted cloth by blowing air toward the surface of the warp knitted cloth, so as to make the warp knitted cloth neater during the winding process, and can effectively reduce the phenomenon of wrinkles and unevenness caused by thread ends and dust impurities remaining on the surface of the warp knitted cloth during the winding process, thereby effectively reducing the problem of shrinkage of the warp knitted cloth during the winding process.
[0017] The utility model discloses a warp knitted cloth shrinkage prevention device for a warp knitting machine, which can effectively reduce the collected dust and impurities from being discharged to the outside along the surface of the dust collecting box through the groove, and effectively reduce the pollution of the working environment caused by the dust and impurities and thread ends drifting to the outside through the airflow. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.
[0019] Figure 1 It is a stereoscopic diagram of a warp knitting cloth shrinkage prevention device for a warp knitting machine according to the utility model;
[0020] Figure 2 It is a structural schematic diagram of the dust collecting plate in the utility model;
[0021] Figure 3 It is a structural schematic diagram of the mesh plate of the utility model;
[0022] Figure 4 It is a structural schematic diagram of the air exhaust hole in the utility model;
[0023] Figure 5 It is a structural schematic diagram of the dust suction pipe in the utility model;
[0024] Figure 6 It is a structural schematic diagram of the first roller in the utility model;
[0025] Explanation of the reference numerals in the drawings in the specification: 1. winding box; 10. winding drum; 11. first guide drum; 12. second guide drum; 13. third guide drum; 14. dust box; 15. fixing rod; 16. dust hood; 17. exhaust duct; 18. exhaust hole; 19. connecting pipe; 20. first through slot; 2. slide slot; 21. mesh plate; 3. threaded brush; 4. baffle; 5. telescopic rod; 51. spring; 52. fixing block; 53. first roller; 6. elastic rod; 61. second roller; 7. vacuum cleaner; 71. dust suction tube; 72. second through slot; 8. connecting rod; 81. scraper strip. DETAILED DESCRIPTION
[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.
[0027] Reference Figures 1 to 5As shown, the utility model is a warp knitting cloth shrinkage prevention device for a warp knitting machine, comprising a winding box 1; a winding drum 10 is installed in the middle of the winding box 1; the winding drum 10 is arranged inside the winding box 1; a first guide drum 11 is fixedly connected to the top of the winding box 1; a second guide drum 12 is installed on the side wall of the winding box 1; a third guide drum 13 is installed on the side wall of the winding box 1; a dust box 14 is fixedly connected to the middle of the second guide drum 12; the side wall of the dust box 14 is arranged in an arc shape; the bottom of the dust box 14 is provided with a There is a first through slot 20; two fixing rods 15 are fixedly connected to the end of the dust box 14; dust covers 16 are fixedly connected to the ends of the two fixing rods 15; an exhaust pipe 17 is fixedly connected to the end of the dust cover 16; a plurality of exhaust holes 18 are opened in the middle of the exhaust pipe 17; a plurality of exhaust holes 18 are arranged in the inner position of the dust cover 16; a connecting pipe 19 is fixedly connected to the middle of the exhaust pipe 17; when working, the warp knitted fabric is guided through the bottom of the third guide cylinder 13 to the top of the second guide cylinder 12, and then guided from the top of the first guide cylinder 11 The airflow is then discharged to the dust collecting box 14 through the plurality of exhaust holes 18, and the discharged airflow is guided by the dust collecting cover 16. After the airflow enters the dust collecting box 14, it is blown toward the surface of the warp knitted fabric through the first through groove 20. The dust and impurities on the surface of the warp knitted fabric are blown toward the two sides of the dust collecting box 14 by the airflow, and the airflow is blown toward the surface of the warp knitted fabric to make the warp knitted fabric tidier during the winding process, and the wrinkles and unevenness during the winding process can be effectively reduced. The shrinkage of the warp knitted fabric during the winding process can be effectively reduced, and the size of the warp knitted fabric can be effectively kept stable during the winding process, and the shrinkage of the warp knitted fabric needs to be restored to its size and shape through additional processing, which can reduce the operation time and cost waste of additional processing of the warp knitted fabric.
[0028] Reference Figure 2 and Figure 3 As shown, the side wall of the dust collecting box 14 is fixedly connected with two slide grooves 2; the two slide grooves 2 are arranged opposite to each other; the middle part of the slide groove 2 is slidably connected with a mesh plate 21; when working, when the thread ends and dust impurities blown off the surface of the warp knitted fabric are collected through the two sides of the dust collecting box 14, the mesh plate 21 can effectively intercept the blown dust impurities, and the slide groove 2 can effectively reduce the collected dust impurities from being discharged to the outside along the surface of the dust collecting box 14, effectively reduce the pollution of the working environment caused by the dust impurities and thread ends drifting to the outside through the airflow, and can effectively reduce the secondary pollution caused by the dust impurities drifting on the surface of the warp knitted fabric again, so that the dust and impurities can be completely collected inside the dust collecting box 14, and the efficiency of dust impurity treatment on the surface of the warp knitted fabric is effectively increased.
[0029] Reference Figure 3 As shown, two groups of threaded brushes 3 are fixedly connected to the side walls of the dust collecting box 14; each group of the threaded brushes 3 is arranged at both sides of the mesh plate 21; the ends of the threaded brushes 3 are in contact with the surface of the mesh plate 21; during operation, after the mesh plate 21 collects thread ends and dust impurities, the ends of the two threaded brushes 3 are in contact with the surface of the mesh plate 21, and the mesh plate 21 is slid from the middle of the slide groove 2 to both sides of the dust collecting box 14, and the surface of the mesh plate 21 is cleaned by the threaded brushes 3, and the threaded brushes 3 can effectively reduce the collection of dust impurities intercepted by the mesh plate 21 for a long time, can effectively reduce the wear and corrosion caused by the accumulation of dust impurities on the surface of the mesh plate 21, and effectively reduce the blockage caused by the accumulation of dust impurities on the surface of the mesh plate 21, and the threaded brushes 3 can centrally process the dust impurities accumulated on the surface of the mesh plate 21, effectively increasing the cleaning efficiency of the dust impurities on the surface of the mesh plate 21.
[0030] Reference Figure 3 As shown, two groups of baffles 4 are fixedly connected to the side wall of the dust collecting box 14; the two groups of baffles 4 are arranged opposite to each other; the baffles 4 are arranged in an arc shape; during operation, when dust and impurities are blown away and intercepted by the mesh plate 21, the dust and impurities will slide down through the surface of the dust collecting box 14, and the sliding dust and impurities are intercepted and collected by the arc-shaped baffles 4. The sliding dust and impurities can be effectively collected by the baffles 4, and the dust and impurities are reduced from entering the warp knitted fabric surface again along the side wall of the dust collecting box 14, so that the dust and impurities can be effectively collected, and the diffusion of dust and impurities in the middle of the dust collecting box 14 can be effectively reduced, and the collection efficiency of dust and impurities can be effectively improved.
[0031] Reference Figure 5 and Figure 6As shown, two telescopic rods 5 are fixedly connected to the bottom of the winding box 1; the two telescopic rods 5 are fixedly connected to the bottom position of the winding drum 10; a spring 51 is fixedly connected to the bottom of the winding box 1; the spring 51 is fixedly connected to the outside of the telescopic rod 5; a fixed block 52 is fixedly connected to the ends of the telescopic rod 5 and the spring 51; the middle of the two fixed blocks 52 is rotatably connected to the first roller 53; when working, during the process of winding the warp knitted cloth by the winding drum 10, the first roller 53 contacts the surface of the collected warp knitted cloth, and the first roller 53 rotates as the warp knitted cloth is wound, and the first roller 53 supports the winding position of the warp knitted cloth, so that the warp knitted cloth is wound. The first roller 53 is in close contact with the winding drum 10. When the diameter of the warp knitted fabric gradually increases during the winding process, the first roller 53 is subjected to the pressure of the warp knitted fabric and elastically contracts through the spring 51 and the telescopic rod 5 to move downward, so that the first roller 53 always keeps in contact with the warp knitted fabric. The first roller 53 can effectively keep the warp knitted fabric and the winding drum 10 in close contact during the winding process, and can apply a certain tension to the warp knitted fabric to keep it flat during the winding process, effectively reduce shrinkage due to relaxation or curling, effectively reduce the problem of wrinkles in the warp knitted fabric due to shrinkage, and can effectively maintain the flatness of the surface of the warp knitted fabric during the winding process.
[0032] Reference Figure 5 and Figure 6 As shown, the side wall of the fixed block 52 is hinged with an elastic rod 6; the middle parts of the two elastic rods 6 are rotatably connected to two second rollers 61; when working, the first roller 53 holds the warp knitted cloth in the process of winding, and the two second rollers 61 are used to fit and press the warp knitted cloth, and rotate as the warp knitted cloth is wound, and the two second rollers 61 can effectively increase the contact area with the warp knitted cloth, and the pressure of the second rollers 61 can make the warp knitted cloth fit more closely when winding, which can effectively make the warp knitted cloth more compact, effectively reduce the gaps and looseness inside the warp knitted cloth, and effectively improve the overall quality of the warp knitted cloth winding.
[0033] Reference Figure 5As shown, a dust collector 7 is fixedly connected to the side wall of the winding box 1; a dust suction pipe 71 is fixedly connected to the middle part of the dust collector 7; the middle part of the dust suction pipe 71 passes through the side wall of the winding box 1; the dust suction pipe 71 is arranged in a Y shape; two second through slots 72 are arranged in the middle part of the dust suction pipe 71; the two second through slots 72 are arranged opposite to each other; during operation, when the warp knitted fabric passes through the dust suction pipe 71 for winding, the dust collector 7 is powered on and turned on, and the negative pressure airflow inside the dust collector 7 causes the dust and impurities on the surface of the warp knitted fabric to pass through the second through slots 72 and enter the inside of the dust suction pipe 71, and then enter the inside of the dust collector 7 through the dust suction pipe 71 to be collected, and the dust and impurities on the surface of the warp knitted fabric are sucked away through the second through slots 72, which can effectively remove the tiny particles and uneven parts on the surface of the warp knitted fabric, make the surface of the warp knitted fabric more flat and smooth, can effectively reduce the stubborn impurities and particulate matter on the surface of the warp knitted fabric, and can effectively improve the quality of the winding of the warp knitted fabric.
[0034] Reference Figure 6 As shown, a connecting rod 8 is fixedly connected to the middle of the two fixed blocks 52; a scraper bar 81 is fixedly connected to the top of the connecting rod 8; when working, the scraper bar 81 contacts the surface of the warp knitted fabric, and when the warp knitted fabric is rolled up, the impurities and particles on the surface of the warp knitted fabric are scraped off by the scraper bar 81. The scraper bar 81 can effectively scrape off the fluff and tiny impurities attached to the surface of the warp knitted fabric, effectively maintain the cleanliness of the surface of the warp knitted fabric, effectively improve the overall quality of the surface of the warp knitted fabric, and effectively reduce the wrinkles and unevenness caused by dust and tiny particles.
[0035] Working principle: The warp knitted fabric is guided through the bottom of the third guide drum 13 to the top of the second guide drum 12, and then guided from the top of the first guide drum 11 to the middle of the winding drum 10 for winding. During the winding of the warp knitted fabric, the end of the connecting tube 19 is connected to the air pump. After the air pump is turned on, the airflow passes through the connecting tube 19 and enters the exhaust pipe 17. The airflow is then discharged to the inside of the dust collecting box 14 through multiple groups of exhaust holes 18. The discharged airflow is guided by the dust collecting cover 16. After the airflow enters the inside of the dust collecting box 14, it is blown to the surface of the warp knitted fabric through the first through groove 20. The dust and impurities on the surface of the warp knitted fabric are blown away by the airflow. The dust and impurities are collected on both sides of the dust box 14. When the thread ends and dust impurities blown off the surface of the warp knitted fabric are collected on both sides of the dust box 14, the mesh plate 21 can effectively intercept the blown dust and impurities. After the mesh plate 21 collects the thread ends and dust impurities, the ends of the two threaded brushes 3 are fitted with the surface of the mesh plate 21, and the mesh plate 21 is slid in the middle of the slide groove 2 to both sides of the dust box 14. The surface of the mesh plate 21 is cleaned by the threaded brush 3. When the dust and impurities are blown off and intercepted by the mesh plate 21, the dust and impurities will slide down through the surface of the dust box 14 and fall down through the arc-shaped baffle 4. The dust and impurities that slide down are intercepted and collected. During the process of winding the warp knitted fabric by the winding drum 10, the first roller 53 contacts the surface of the collected warp knitted fabric, and the first roller 53 rotates as the warp knitted fabric is wound. The first roller 53 supports the winding position of the warp knitted fabric, so that the warp knitted fabric is closely fitted with the winding drum 10 during the winding process. When the diameter of the warp knitted fabric gradually increases during the winding process, the first roller 53 is elastically contracted by the spring 51 and the telescopic rod 5 and moves downward under the pressure of the warp knitted fabric, so that the first roller 53 always keeps in contact with the warp knitted fabric. The first roller 53 During the winding process, the warp knitted cloth is supported by the two second rollers 61 and pressed against the warp knitted cloth, and rotates as the warp knitted cloth is wound. During the winding process of the warp knitted cloth passing through the dust suction pipe 71, the vacuum cleaner 7 is powered on and turned on, and the negative pressure airflow inside the vacuum cleaner 7 causes the dust and impurities on the surface of the warp knitted cloth to pass through the second through groove 72 and enter the dust suction pipe 71, and then enter the vacuum cleaner 7 through the dust suction pipe 71 to be collected, and the scraper bar 81 contacts the surface of the warp knitted cloth. When the warp knitted cloth is wound, the impurities and particulate matter on the surface of the warp knitted cloth are scraped off by the scraper bar 81.
[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.
Claims
1. A warp knitted fabric anti-shrinkage device for a warp knitting machine, comprising a winding box (1); characterized in that: A winding drum (10) is installed in the middle of the winding box (1); the winding drum (10) is arranged inside the winding box (1); a first guide drum (11) is fixedly connected to the top of the winding box (1); a second guide drum (12) is installed on the side wall of the winding box (1); a third guide drum (13) is installed on the side wall of the winding box (1); a dust collecting box (14) is fixedly connected to the middle of the second guide drum (12); the side wall of the dust collecting box (14) is arranged in an arc shape; the dust collecting box (14) 14) is provided with a first through slot (20) at the bottom; two fixing rods (15) are fixedly connected to the ends of the dust collecting box (14); a dust collecting cover (16) is fixedly connected to the ends of the two fixing rods (15); an exhaust pipe (17) is fixedly connected to the end of the dust collecting cover (16); a plurality of exhaust holes (18) are provided in the middle of the exhaust pipe (17); the plurality of exhaust holes (18) are arranged at positions inside the dust collecting cover (16); and a connecting pipe (19) is fixedly connected to the middle of the exhaust pipe (17).
2. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 1, characterized in that: The side wall of the dust collecting box (14) is fixedly connected to two slide grooves (2); the two slide grooves (2) are arranged opposite to each other; and a mesh plate (21) is slidably connected to the middle of the slide groove (2).
3. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 2, characterized in that: Two groups of threaded brushes (3) are fixedly connected to the side wall of the dust collecting box (14); each group of the threaded brushes (3) is arranged at two sides of the mesh plate (21); and the ends of the threaded brushes (3) are in contact with the surface of the mesh plate (21).
4. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 3, characterized in that: Two groups of baffles (4) are fixedly connected to the side wall of the dust collecting box (14); the two groups of baffles (4) are arranged opposite to each other; and the baffles (4) are arranged in an arc shape.
5. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 4, characterized in that: Two telescopic rods (5) are fixedly connected to the bottom of the winding box (1); the two telescopic rods (5) are fixedly connected to the bottom of the winding drum (10); a spring (51) is fixedly connected to the bottom of the winding box (1); the spring (51) is fixedly connected to the outside of the telescopic rod (5); a fixing block (52) is fixedly connected to the ends of the telescopic rod (5) and the spring (51); and a first roller (53) is rotatably connected to the middle of the two fixing blocks (52).
6. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 5, characterized in that: The side wall of the fixed block (52) is hinged with an elastic rod (6); the middle parts of the two elastic rods (6) are rotatably connected to two second rollers (61).
7. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 6, characterized in that: A dust collector (7) is fixedly connected to the side wall of the winding box (1); a dust suction pipe (71) is fixedly connected to the middle of the dust collector (7); the middle of the dust suction pipe (71) passes through the side wall of the winding box (1); the dust suction pipe (71) is arranged in a Y shape; two second through grooves (72) are provided in the middle of the dust suction pipe (71); the two second through grooves (72) are arranged opposite to each other.
8. The device for preventing warp knitted fabric from shrinking when used in a warp knitting machine according to claim 7, characterized in that: A connecting rod (8) is fixedly connected to the middle of the two fixing blocks (52); and a scraper strip (81) is fixedly connected to the top of the connecting rod (8).