A dust removal system for cotton yarn processing

Abstract

This invention provides a dust removal system for cotton yarn processing, relating to the field of cotton yarn processing. It includes a frame, supports, a drive wheel, a pressure wheel, and a driven wheel. The frame has open top and bottom sides, and two supports are installed on each side of the frame. Two supports on the same side form a group, and the two groups are symmetrically arranged. Between each group of two supports, a drive wheel, a pressure wheel, and a driven wheel are rotatably installed from bottom to top. This invention uses side filters to prevent cotton lint from being sucked into two dust collection boxes. As the raw material passes through the side filters from top to bottom, dust within the material is drawn away by the negative pressure created by the suction pipe and the two dust collection boxes, thus achieving more comprehensive dust adsorption and improving the dust removal efficiency. The technical problem solved is that current methods for dust removal from cotton lumps are not comprehensive enough, and cleaning the filters affects the dust removal efficiency.

Description

Technical Field

[0001] This invention relates to the field of cotton yarn processing, and more particularly to a dust removal system for cotton yarn processing. Background Technology

[0002] Cotton yarn is yarn made from cotton fibers through spinning processes. Cotton yarn has a wide range of uses. It can be used as yarn for weaving, such as for home textiles like bed sheets, duvet covers, and curtains.

[0003] Cotton yarn forming process: cotton blending → cotton cleaning → carding → drawing → sliver lap → combing → drawing → roving → spinning → doffing → finished product inspection.

[0004] Cleaning the raw materials of cotton during cleaning facilitates subsequent processes and improves the quality of cotton yarn. Currently, cotton blocks are generally placed in a container, and a dust removal device moves over the cotton blocks to remove dust. However, this method is not thorough enough. Because the cotton fibers are interwoven, it is difficult to clean the dust in the middle of the cotton block. During the dust removal process, the cotton block needs to be constantly moved to expose the middle part, which is cumbersome and not thorough enough. After a period of dust removal, the filter screen is easily clogged by cotton fibers, requiring the dust removal to be stopped and the filter screen of the dust removal device to be cleaned, which seriously affects the efficiency of dust removal. Summary of the Invention

[0005] Current methods for removing dust from cotton blocks are not comprehensive enough, and cleaning the filter screen can affect the efficiency of dust removal. The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a dust removal system for cotton yarn processing. This system can remove dust from cotton blocks from both sides and can also more fully move the middle of the cotton block to improve the dust removal effect. During the dust removal process, the filter screen can also be cleaned to improve the efficiency of dust removal.

[0006] The technical implementation scheme of the present invention is as follows: a dust removal system for cotton yarn processing includes a frame, a support, a drive wheel, a pressure wheel, a driven wheel, a motor, a feeding mechanism, and a dust removal mechanism. The upper and lower sides of the frame are open. Two supports are installed on each side of the frame. The two supports on the same side form a group, and the two groups of supports are symmetrically arranged. Between the two supports in each group, the drive wheel, pressure wheel, and driven wheel are rotatably installed from bottom to top. A motor is installed on one of the supports in each group. The output shafts of the two motors are respectively connected to one side of the two drive wheels. A feeding mechanism is provided between the drive wheel, pressure wheel, and driven wheel in each group. The feeding mechanism is used to transport the raw material to be dusted. Dust removal mechanisms are installed on the other two sides of the frame. The dust removal mechanisms are used to remove dust from the raw material.

[0007] As a further preferred embodiment, the feeding mechanism includes a belt, bearings, levers, and scraper frames. A belt is wound between the driving wheel, pressure wheel, and driven wheel of each group. Several bearings are evenly spaced and embedded on the two belts. Each bearing is rotatably equipped with a lever. A scraper frame is installed at the bottom of each of the four supports.

[0008] As a further preferred option, several levers on the two belts are arranged alternately.

[0009] As a further preferred embodiment, the dust removal mechanism includes a dust collection box, a connecting pipe, a filter screen, and a return spring. A dust collection box is embedded in each of the other two sides of the frame. The side of the two dust collection boxes that is close to each other is open. A connecting pipe is installed on the upper part of each dust collection box, and the connecting pipe communicates with the dust collection box. A filter screen is slidably installed in the open part of each dust collection box. Several return springs are connected between each filter screen and each dust collection box.

[0010] As a further preferred embodiment, a dispersing mechanism is also included. The dispersing mechanism is mounted on the lever and the bracket. The dispersing mechanism is used to disperse the raw material to be dusted. The dispersing mechanism includes a dispersing frame, a horizontal spring, and a raised plate. A dispersing frame is slidably mounted on each lever. A horizontal spring is connected between each dispersing frame and each lever. A raised plate is installed between two brackets on the same side. The raised plate is provided with several protrusions and contacts one end of the dispersing frame.

[0011] As a further preferred embodiment, a pushing mechanism is also included. The pushing mechanism is mounted on the lever, the bearing, and the bracket. The pushing mechanism is used to push the material to be dusted. The pushing mechanism includes a spur gear, a torsion spring, and a toothed rack. A spur gear is installed at one end of each lever. A torsion spring is provided between each spur gear and each bearing. One end of the torsion spring is connected to the spur gear, and the other end of the torsion spring is connected to the bearing. The torsion spring is wound around the lever. A toothed rack is installed between the two brackets on the same side.

[0012] As a further preferred option, several sets of tooth blocks are evenly spaced on the toothed rack, and the spur gear will mesh with several sets of tooth blocks on the toothed rack in sequence.

[0013] As a further preferred embodiment, a scraping mechanism is also included. The scraping mechanism is disposed on the frame and the driven wheel. The scraping mechanism is used to scrape the cotton fibers on the filter screen. The scraping mechanism includes a scraping frame, vertical springs, a horizontal frame, and a drive plate. A sliding groove is opened on each side of the upper part of the frame. A scraping frame is slidably disposed in each of the two sliding grooves. The two scraping frames are symmetrically arranged. The lower parts of the two scraping frames are located inside the frame. Two vertical springs are connected between the upper parts of the two scraping frames and the two sliding grooves, respectively. A horizontal frame is installed on the upper part of each of the two scraping frames. Two drive plates are installed on both sides of the two driven wheels. One side of each drive plate is located above the horizontal frame.

[0014] As a further preferred option, several scrapers are evenly spaced at the bottom of both scraper frames, with several scrapers on the same side contacting the filter screen on the same side.

[0015] As a further preferred embodiment, a dredging mechanism is also included. The dredging mechanism is installed on the dust collection box, filter screen, and scraper frame. The dredging mechanism is used to dredge the filter screen. The dredging mechanism includes a top frame, top rods, and semi-circular convex plates. A top frame is fixedly installed in each of the two dust collection boxes. Several top rods are evenly spaced on the side of the two top frames that are close to each other. Four semi-circular convex plates are installed on the side of the two filters that are close to each other. Four rollers are installed on both sides of the lower part of the two scraper frames. The four rollers on the same side are located below the four semi-circular convex plates on the same side.

[0016] Beneficial effects: 1. This invention uses two belts to drive several shaft seats and levers on both sides to move downwards in sequence. The levers on both sides move downwards in sequence to move the raw material in the upper part of the frame to the filter screens on both sides. The filter screens on both sides prevent cotton wool from being sucked into the two dust collection boxes. When the raw material passes through the filter screens on both sides from top to bottom, the dust in the raw material is drawn away by the negative pressure formed by the air extraction pipe and the two dust collection boxes, so as to more comprehensively adsorb the dust in the raw material and improve the dust removal effect.

[0017] 2. As the lever moves sequentially, it drives the dispersing frame, horizontal spring, spur gear, and torsion spring to move in sequence. When one of the dispersing frames contacts a protrusion on the raised plate, the frame moves under the action of the protrusion, compressing the horizontal spring. This movement of the dispersing frame agitates the material in the middle. The spur gear engages and disengages with several sets of teeth on the toothed rack. After engaging with one set of teeth on the rack, the spur gear drives the lever, dispersing frame, and horizontal spring to rotate 90 degrees, causing the torsion spring to twist. After disengaging from the rack, the spur gear, under the action of the torsion spring, drives the lever, dispersing frame, and horizontal spring to rotate 90 degrees in the opposite direction. This process repeats, causing the dispersing frame to move back and forth while continuously rotating in both directions. This allows the dispersing frame to more thoroughly agitate the material in the middle, making it more loose and allowing dust to be effectively removed, further improving the dust removal effect.

[0018] 3. By continuously moving up and down the two scraping frames, the scrapers inside the two scraping frames continuously move up and down to scrape the cotton fibers adsorbed on the two filter screens. Through several top rods on both sides, the cotton fibers that are difficult to clean in the filter screen mesh can be pushed out, thereby further preventing the two filter screens from being blocked by cotton fibers, further improving the ventilation of the filter screens, and thus better adsorbing the dust in the raw materials, improving the dust removal efficiency. Attached Figure Description

[0019] Figure 1 This is a bottom-view three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a front-view stereoscopic structural diagram of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0022] Figure 4 This is a cross-sectional three-dimensional structural diagram of the feeding mechanism of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the disintegration mechanism and the pushing mechanism of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram showing the disassembled parts of the feeding mechanism of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram showing the disassembled parts of the dust removal mechanism of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram showing the disassembled parts of the disassembly mechanism and the pushing mechanism of the present invention.

[0027] Figure 9This is a three-dimensional structural diagram of the pushing mechanism and scraping mechanism of the present invention.

[0028] Figure 10 This is a three-dimensional structural diagram of the scraping mechanism of the present invention.

[0029] Figure 11 This is a three-dimensional structural diagram showing the disassembled parts of the pushing mechanism and scraping mechanism of the present invention.

[0030] The labels in the diagram are as follows: 1-Frame, 2-Bracket, 3-Drive wheel, 4-Pressure wheel, 5-Driven wheel, 6-Motor, 71-Belt, 72-Shaft seat, 73-Lever, 74-Scraper frame, 81-Dust collection box, 82-Passive pipe, 83-Filter screen, 84-Reset spring, 91-Disintegrating frame, 92-Horizontal spring, 93-Protruding plate, 101-Column gear, 102-Torsion spring, 103-Toothed rack, 1110-Slide groove, 111-Scraper frame, 112-Vertical spring, 113-Horizontal frame, 114-Drive plate, 121-Top frame, 1211-Top rod, 122-Semi-circular convex plate, 123-Roller. Detailed Implementation

[0031] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Example 1: A dust removal system for cotton yarn processing, such as Figures 1-7 As shown, the system includes a frame 1, a support 2, a drive wheel 3, a pressure wheel 4, a driven wheel 5, a motor 6, a feeding mechanism, and a dust removal mechanism. The top and bottom sides of the frame 1 are open. Two supports 2 are bolted to each side of the frame 1. The two supports 2 on the same side form a group, and the two groups of supports 2 are symmetrically arranged. Between the two supports 2 in each group, the drive wheel 3, pressure wheel 4, and driven wheel 5 are rotatably installed from bottom to top. A motor 6 is installed on one of the supports 2 in each group. The output shafts of the two motors 6 are connected to one side of the two drive wheels 3 respectively. A feeding mechanism is provided between the drive wheel 3, pressure wheel 4, and driven wheel 5 in each group. The feeding mechanism is used to transport the raw materials to be dusted. Dust removal mechanisms are installed on the other two sides of the frame 1. The dust removal mechanisms are used to remove dust from the raw materials.

[0033] The feeding mechanism includes a belt 71, a bearing 72, a lever 73, and a scraper 74. A belt 71 is wound between the driving wheel 3, the pressure wheel 4, and the driven wheel 5 in each group. Several bearings 72 are evenly spaced and embedded on the two belts 71. Each bearing 72 is provided with a lever 73 that rotates through a bearing. A scraper 74 is welded to the bottom of each of the four brackets 2.

[0034] Several levers 73 on the two belts 71 are arranged alternately.

[0035] The dust removal mechanism includes a dust collection box 81, a pipe 82, a filter screen 83, and a return spring 84. A dust collection box 81 is embedded in each of the other two sides of the frame 1. The side of the two dust collection boxes 81 that is close to each other is open. A pipe 82 is installed on the upper part of each of the two dust collection boxes 81, and the pipe 82 is connected to the dust collection box 81. A filter screen 83 is slidably installed in the open part of each of the two dust collection boxes 81. Four return springs 84 are connected between each filter screen 83 and each dust collection box 81, and the filter screen 83 will slide along the dust collection box 81.

[0036] The operator places an appropriate amount of raw material into the upper part of the frame 1, and then starts two motors 6 to rotate. One motor rotates clockwise and the other counterclockwise. The two motors 6 drive two drive wheels 3 to rotate, which in turn drive two belts 71 to rotate. The pressure roller 4 and the driven roller 5 are rotated by the belts 71. The two belts 71 drive several shaft seats 72 and levers 73 on both sides to move downwards in sequence. The levers 73 on both sides move downwards in sequence, continuously conveying the raw material in the upper part of the frame 1 to the lower part of the frame 1. Then, the operator connects an external air extraction pipe to two through pipes 82 to create a negative pressure in the two dust collection boxes 81. During the process of conveying the raw material from the upper part of the frame 1 to the lower part of the frame 1, the raw material will pass through the filters 83 on both sides from top to bottom. The filters 83 prevent cotton wool from being sucked into the two dust collection boxes 81. As the raw material passes through the filters 83 from top to bottom, the dust in the raw material will pass through the filters 83. The dust is drawn away by the negative pressure formed by the exhaust pipe and the two dust collection boxes 81. After the raw material with the adsorbed dust is transported to the lower part of the frame 1, some of the raw material will fall off, and the other part will be driven by the lever 73. When the raw material driven by the lever 73 moves to the scraper 74, it is scraped off by the lever 73 on the scraper 74. The two belts 71 drive the several bearings 72 and levers 73 on both sides to move down in sequence. The levers 73 on both sides move down in sequence to move the raw material in the upper part of the frame 1 to the filter screens 83 on both sides. The filter screens 83 on both sides prevent cotton wool from being sucked into the two dust collection boxes 81. When the raw material passes through the filter screens 83 on both sides from top to bottom, the dust in the raw material will be drawn away by the negative pressure formed by the exhaust pipe and the two dust collection boxes 81, so that the dust in the raw material can be adsorbed more comprehensively and the dust removal effect of the raw material can be improved. After the raw material is dusted, the operator turns off the two motors 6 and disconnects the exhaust pipe on the two pipes 82.

[0037] Example 2: Based on Example 1, such as Figures 4-8As shown, it also includes a dispersing mechanism, which is set on the lever 73 and the bracket 2. The dispersing mechanism is used to disperse the raw materials to be dusted. The dispersing mechanism includes a dispersing frame 91, a horizontal spring 92 and a protruding plate 93. Each lever 73 is slidably provided with a dispersing frame 91. The dispersing frame 91 will slide along the lever 73. Each dispersing frame 91 is connected to each lever 73 by a horizontal spring 92. A protruding plate 93 is installed between the two brackets 2 on the same side. The protruding plate 93 is provided with six protrusions and contacts one end of the dispersing frame 91.

[0038] It also includes a pushing mechanism, which is set on the lever 73, the bearing 72 and the bracket 2. The pushing mechanism is used to push the raw material to be dusted. The pushing mechanism includes a spur gear 101, a torsion spring 102 and a toothed rack 103. One end of each lever 73 is keyed with a spur gear 101. A torsion spring 102 is provided between each spur gear 101 and each bearing 72. One end of the torsion spring 102 is connected to the spur gear 101 and the other end is connected to the bearing 72. The torsion spring 102 is wound around the lever 73. A toothed rack 103 is installed between the two brackets 2 on the same side.

[0039] Five sets of tooth blocks are evenly spaced on the toothed rack 103, and the spur gear 101 will mesh with the five sets of tooth blocks on the toothed rack 103 in sequence.

[0040] As lever 73 moves sequentially, it drives the dispersing frame 91 and the horizontal spring 92 to move sequentially. When one of the dispersing frames 91 contacts the protrusion on the raised plate 93, the dispersing frame 91 moves under the action of the protrusion on the raised plate 93, and the horizontal spring 92 is compressed accordingly. The movement of the dispersing frame 91 can move the material in the middle, making the material in the middle loose, so that the dust in the material in the middle can be fully sucked away. After the dispersing frame 91 separates from the protrusion on the raised plate 93, the dispersing frame 91 moves back to its original position under the action of the horizontal spring 92. As the dispersing frame 91 continuously contacts and separates from the six protrusions on the raised plate 93, the dispersing frame 91 will continuously move back and forth under the action of the horizontal spring 92, thus continuously loosening the material in the middle and further improving the dust removal effect of the material.

[0041] When the lever 73 moves sequentially, it drives the spur gear 101 and the torsion spring 102 to move sequentially. The spur gear 101 engages and disengages with the five sets of tooth blocks on the toothed rack 103 in sequence. After the spur gear 101 engages with one set of tooth blocks on the toothed rack 103, the spur gear 101 drives the lever 73, the dispersing frame 91, and the horizontal spring 92 to rotate 90 degrees. The torsion spring 102 twists accordingly. After the spur gear 101 disengages from one set of tooth blocks on the toothed rack 103, under the action of the torsion spring 102, the spur gear 101 drives the lever 73, the dispersing frame 91, and the horizontal spring 92 to rotate 90 degrees in the opposite direction. This process is repeated, which drives the dispersing frame 91 to rotate continuously in both directions while moving back and forth. The dispersing frame 91 can then more fully dissipate the material in the middle, making the material in the middle looser, thereby allowing the dust in the material in the middle to be fully sucked away, further improving the dust removal effect of the material.

[0042] Example 3: Based on Example 2, such as Figures 9-11 As shown, it also includes a scraping mechanism, which is set on the frame 1 and the driven wheel 5. The scraping mechanism is used to scrape the cotton fibers on the filter screen 83. The scraping mechanism includes a scraping frame 111, a vertical spring 112, a horizontal frame 113 and a drive plate 114. A sliding groove 1110 is opened on both sides of the upper part of the frame 1. A scraping frame 111 is slidably installed in each of the two sliding grooves 1110. The scraping frame 111 will slide up and down along the sliding groove 1110. The two scraping frames 111 are symmetrically arranged. The lower part of the two scraping frames 111 is located inside the frame 1. Two vertical springs 112 are connected between the upper part of the two scraping frames 111 and the two sliding grooves 1110 respectively. A horizontal frame 113 is installed on the upper part of each of the two scraping frames 111 by bolts. Two drive plates 114 are installed on both sides of the two driven wheels 5 respectively. One side of each drive plate 114 is located above the horizontal frame 113.

[0043] Both scraper frames 111 have several scrapers evenly spaced at the bottom, with several scrapers on the same side contacting the filter screen 83 on the same side.

[0044] It also includes a dredging mechanism, which is installed on the dust collection box 81, the filter screen 83 and the scraper frame 111. The dredging mechanism is used to dredge the filter screen 83. The dredging mechanism includes a top frame 121, a top rod 1211 and a semi-circular convex plate 122. A top frame 121 is fixedly installed in each of the two dust collection boxes 81. Thirty-two top rods 1211 are evenly spaced on the side of the two top frames 121 that are close to each other. Four semi-circular convex plates 122 are installed on the side of the two filters 83 that are close to each other. Four rollers 123 are installed on both sides of the lower part of the two scraper frames 111. The four rollers 123 on the same side are located below the four semi-circular convex plates 122 on the same side.

[0045] The rotation of the two driven wheels 5 drives the rotation of the four drive plates 114. After the inner ends of the four drive plates 114 contact the crossbeam 113, the four drive plates 114 drive the two crossbeams 113 and the two scraper frames 111 to slide downward in the slide groove 1110. The vertical spring 112 is compressed accordingly. When the inner ends of the four drive plates 114 rotate to separate from the crossbeam 113, under the action of the vertical spring 112, the two crossbeams 113 and the two scraper frames 111 slide upward in the slide groove 1110. This process is repeated. The two scraper frames 111 move up and down continuously. The scrapers inside the two scraper frames 111 move up and down continuously to scrape the cotton fibers adsorbed on the two filter screens 83, thereby preventing the two filter screens 83 from being blocked by cotton fibers, increasing the ventilation of the filter screens 83, and thus better adsorbing the dust in the raw materials, improving the dust removal efficiency.

[0046] The scrapers inside the two scraping frames 111 move up and down continuously, driving the eight rollers 123 to move up and down continuously. After the four rollers 123 on the same side contact the four semi-circular convex plates 122 on the same side, the four semi-circular convex plates 122 on the same side drive the filter screen 83 on the same side to move, thereby driving the two filter screens 83 to move away from each other. The return spring 84 is compressed accordingly. Since the two top frames 121 do not move, the mesh of the filter screens 83 on both sides will move and insert into the thirty-two top rods 1211 on both sides. Through the thirty-two top rods 1211 on both sides, the cotton fibers that are difficult to clean in the mesh of the filter screens 83 on both sides can be pushed out, thereby further preventing the two filter screens 83 from being blocked by cotton fibers, further improving the ventilation of the filter screens 83, and thus better adsorbing the dust in the raw materials, further improving the dust removal efficiency.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles of the invention.

Claims

1. A dust removal system for cotton yarn processing, characterized by: It includes a frame (1), a bracket (2), a drive wheel (3), a pressure wheel (4), a driven wheel (5), a motor (6), a feeding mechanism, and a dust removal mechanism. The upper and lower sides of the frame (1) are open. Two brackets (2) are installed on each side of the frame (1). The two brackets (2) on the same side form a group. The two groups of brackets (2) are symmetrically arranged. The drive wheel (3), pressure wheel (4), and driven wheel (5) are installed in a rotating manner from bottom to top between the two brackets (2) in each group. A motor (6) is installed on one of the brackets (2) in each group. The output shafts of the two motors (6) are connected to one side of the two drive wheels (3). A feeding mechanism is set between the drive wheel (3), pressure wheel (4), and driven wheel (5) in each group. The feeding mechanism is used to transport the raw materials to be dusted. Dust removal mechanisms are installed on the other two sides of the frame (1). The dust removal mechanisms are used to remove dust from the raw materials. It also includes a dispersing mechanism, which is set on the lever (73) and the bracket (2). The dispersing mechanism is used to disperse the raw material to be dusted. The dispersing mechanism includes a dispersing frame (91), a horizontal spring (92) and a protruding plate (93). Each lever (73) is slidably provided with a dispersing frame (91). Each dispersing frame (91) is connected to each lever (73) by a horizontal spring (92). A protruding plate (93) is installed between the two brackets (2) on the same side. The protruding plate (93) is provided with several protrusions. The protruding plate (93) is in contact with one end of the dispersing frame (91). It also includes a pushing mechanism, which is set on the lever (73), the bearing (72) and the bracket (2). The pushing mechanism is used to push the raw material to be dusted. The pushing mechanism includes a spur gear (101), a torsion spring (102) and a toothed rack (103). A spur gear (101) is installed at one end of each lever (73), and a torsion spring (102) is provided between each spur gear (101) and each bearing (72). One end of the torsion spring (102) is connected to the spur gear (101), and the other end of the torsion spring (102) is connected to the bearing seat (72). The torsion spring (102) is wrapped around the lever (73). A toothed rack (103) is installed between the two brackets (2) on the same side. The toothed rack (103) has several sets of tooth blocks evenly spaced on it, and the spur gear (101) will mesh with the several sets of tooth blocks on the toothed rack (103) in sequence.

2. A dust removal system for cotton yarn processing according to claim 1, characterized in that: The feeding mechanism includes a belt (71), a bearing seat (72), a lever (73) and a scraper (74). A belt (71) is wound between the driving wheel (3), the pressure wheel (4) and the driven wheel (5) of each group. Several bearing seats (72) are evenly spaced and embedded on the two belts (71). A lever (73) is rotatably provided on each bearing seat (72). A scraper (74) is installed at the bottom of each of the four brackets (2).

3. A dust removal system for cotton yarn processing according to claim 2, characterized in that: Several levers (73) on the two belts (71) are arranged alternately.

4. A dust removal system for cotton yarn processing according to claim 3, characterized in that: The dust removal mechanism includes a dust collection box (81), a pipe (82), a filter screen (83), and a return spring (84). A dust collection box (81) is embedded in each of the other two sides of the frame (1). The two dust collection boxes (81) are open on the side that is close to each other. A pipe (82) is installed on the upper part of each of the two dust collection boxes (81). The pipe (82) is connected to the dust collection box (81). A filter screen (83) is slidably installed in the open part of each of the two dust collection boxes (81). Several return springs (84) are connected between each filter screen (83) and each dust collection box (81).

5. A dust removal system for cotton yarn processing according to claim 4, characterized in that: It also includes a scraping mechanism, which is set on the frame (1) and the driven wheel (5). The scraping mechanism is used to scrape the cotton wool on the filter screen (83). The scraping mechanism includes a scraping frame (111), a vertical spring (112), a horizontal frame (113) and a drive plate (114). A sliding groove (1110) is opened on both sides of the upper part of the frame (1). A scraping frame (111) is slidably installed in each of the two sliding grooves (1110). The two scraping frames (111) The two scraping racks (111) are arranged symmetrically. The lower part of the two scraping racks (111) is located inside the frame (1). The upper part of the two scraping racks (111) is connected to the two slides (1110) by two vertical springs (112). A cross frame (113) is installed on the upper part of each of the two scraping racks (111). Two drive plates (114) are installed on both sides of the two driven wheels (5). One side of each drive plate (114) is located above the cross frame (113).

6. A dust removal system for cotton yarn processing according to claim 5, characterized in that: Both scraper frames (111) have several scrapers evenly spaced at the bottom, and several scrapers on the same side are in contact with the filter screen (83) on the same side.

7. A dust removal system for cotton yarn processing according to claim 6, characterized in that: It also includes a dredging mechanism, which is set on the dust collection box (81), the filter screen (83) and the scraper (111). The dredging mechanism is used to dredge the filter screen (83). The dredging mechanism includes a top frame (121), a top rod (1211) and a semi-circular convex plate (122). A top frame (121) is fixedly installed in each of the two dust collection boxes (81). Several top rods (1211) are evenly spaced on the side of the two top frames (121) that are close to each other. Four semi-circular convex plates (122) are installed on the side of the two filters (83) that are close to each other. Four rollers (123) are installed on both sides of the lower part of the two scraper (111). The four rollers (123) on the same side are located below the four semi-circular convex plates (122) on the same side.

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