Cotton roll impurity removal combing machine

By designing the reciprocating movement of the swing rod, comb plate and comb teeth, combined with the gum removal box and wind power system, the problem that the existing combing machine cannot vibrate and shake the cotton roll fibers, achieving better mud removal effect and Practicality.

CN222226692UActive Publication Date: 2024-12-24GUANXIAN JIAYUAN TEXTILE CO LTD
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Patent Information

Application Number
CN202421012382.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2024-12-24
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

The steel comb fixing setting of the existing comb machine cannot vibrate and shake the cotton roll fibers, resulting in poor decomposition removal and inability to achieve comprehensive combing and decomposition removal.

Method used

A cotton roll removal combing machine is designed, including four swing rods, two comb plates, multiple comb teeth and driving components. The push rod is driven back and forth through the drive component, so that the swing rod and the comb plate are swung back and forth, driving the The comb teeth are interspersed with comb fibers to achieve the vibration and vibration of the fibers, and combine the decorative box, screw and wind power system to improve the decorative efficiency.

Benefits of technology

The comprehensive vibration and jitter of the cotton roll fiber is achieved, which significantly improves the impurity removal effect, enhances practicality, and can more effectively remove impurities from the fiber.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cotton carding equipment, in particular to a cotton roll impurity removal combing machine which can vibrate and shake cotton roll fibers, comprehensively comb and remove impurities, and is better in impurity removal effect and good in practicability. Comprising a combing machine body, a lap roll and a combing assembly, the lap roll is installed on the upper portion of the combing machine body, and the combing assembly is installed on the lower portion of the combing machine body; the comb further comprises four swing rods, two comb plates, a plurality of comb teeth, two push rods and a driving assembly, the two comb plates are oppositely arranged left and right, the two comb plates are vertically arranged, the comb teeth are arranged on the opposite faces of the two comb plates, the two ends of the two comb plates are rotationally connected with the outer ends of the four swing rods respectively, rotating shafts are arranged in the middles of the four swing rods, and the two push rods are arranged on the rotating shafts. The two ends of the two push rods are rotationally connected with the inner ends of the four swing rods correspondingly, the two push rods are oppositely arranged, and the driving assembly is installed on the combing machine body and drives the two push rods to move in a reciprocating mode.
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Description

Technical Field

[0001] The utility model relates to the technical field of cotton combing equipment, in particular to a cotton roll impurity removal combing machine. Background Art

[0002] Cotton yarn is the yarn made from cotton fiber through spinning process, and after plying process, it is called cotton thread. According to different spinning processes, it can be divided into carded yarn and combed yarn. In the production of cotton yarn, a combing machine is needed to remove shorter fibers and remove kinks in the fibers, so that the fibers can be further straightened and parallel.

[0003] The Chinese utility model patent with prior art publication number CN219099421U proposes a combing machine impurity remover, which enables a cleaning ring to move up and down on a steel comb through the action of an electric telescopic rod. As the cleaning ring moves, impurities adhering to the steel comb can be cleaned. A large amount of airflow with positive and negative charges is blown out by an ion wind rod, which can neutralize the charge carried by impurities adhering to the steel comb, thereby improving the impurity treatment effect.

[0004] The above-mentioned combing machine impurity remover removes impurities from the cotton roll fibers through a steel comb, but the steel comb is fixedly arranged and cannot vibrate and shake the cotton roll fibers, which is inconvenient for comprehensive combing and impurity removal of the cotton roll fibers, and therefore needs to be improved. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a cotton roll impurity removing combing machine which can vibrate and shake cotton roll fibers, perform comprehensive combing and impurity removal, and has better impurity removal effect and good practicality.

[0006] The utility model discloses a cotton lap impurity removing combing machine, comprising a combing machine body, a cotton lap roller and a combing assembly, wherein the cotton lap roller is mounted on the upper part of the combing machine body, and the combing assembly is mounted on the lower part of the combing machine body; the utility model also comprises four swing rods, two combing plates, a plurality of comb teeth, two push rods and a driving assembly, wherein the two combing plates are arranged opposite to each other on the left and right sides, the two combing plates are arranged up and down, a plurality of comb teeth are arranged on the opposite surfaces of the two combing plates, the two ends of the two combing plates are rotatably connected to the outer ends of the four swing rods respectively, the middle parts of the four swing rods are arranged with rotating shafts, the two ends of the two push rods are rotatably connected to the inner ends of the four swing rods respectively, the two push rods are arranged opposite to each other, the driving assembly is mounted on the combing machine body, and the driving assembly drives the two push rods to move back and forth; when working, the cotton lap is mounted on the cotton lap roller, and the cotton lap fibers are extracted and then passed through the combing machine body. After combing, the combing assembly is transported to the next process. After the cotton roll fibers are extracted from the cotton roll, they pass between the two combing plates, and the driving assembly drives the two push rods to move back and forth, so that the two push rods drive the inner ends of the four swing rods to swing back and forth around the rotating shaft of the swing rod, so that the outer ends of the four swing rods drive the two combing plates to swing back and forth around the rotating shaft of the swing rod, and the two combing plates reciprocately hit the cotton roll fibers, so that the cotton roll fibers are shaken to remove impurities thereon. At the same time, the two combing plates drive multiple comb teeth to reciprocately intersperse and comb the cotton roll fibers, so that the multiple comb teeth block the impurities on the cotton roll fibers, thereby realizing cotton roll impurity removal. Compared with the existing technology, the cotton roll fibers can be vibrated and shaken, which is convenient for comprehensive combing and impurity removal of the cotton roll fibers, and the impurity removal effect is better and the practicability is good.

[0007] Preferably, it also includes a dust collecting box, multiple mounting seats and multiple screws, a dust collecting chamber is arranged inside the dust collecting box, an inlet is arranged on the upper end surface of the dust collecting box, and an outlet is arranged on the lower end surface of the dust collecting box, the inlet and the outlet are connected with the dust collecting chamber, two combing plates, two push rods and four rocker arms are all located in the dust collecting chamber of the dust collecting box, mounting seats are arranged on both sides of the dust collecting box, multiple screws are rotatably screwed on the multiple mounting seats respectively, the multiple mounting seats are clamped and connected to the combing machine body, and the inner ends of the multiple screws are in contact with the combing machine body; by arranging the mounting seats and the screws, it is convenient to install and disassemble the dust collecting box on the combing machine body, and the dust collecting box protects the extracted cotton roll fibers, thereby improving practicality.

[0008] Preferably, the driving assembly includes a motor, a swing arm and a pull rod. The four swing rods are rotatably connected to the inner wall of the debris removal box through a rotating shaft. The motor is installed on the debris removal box, the inner end of the swing arm is installed on the output shaft of the motor, one end of the pull rod is rotatably connected to the outer end of the swing arm, and the other end of the pull rod is rotatably connected to the push rod. The motor drives the swing arm to rotate, and the swing arm drives the push rod to move back and forth through the pull rod, thereby realizing reciprocating drive of the push rod. The technology is mature and reliable, and has good practicality.

[0009] Preferably, it also includes two mounting bars, two stripping plates and two spring sheets, the two mounting bars are respectively mounted on the top and bottom of the impurity removal box, the two mounting bars are respectively located on the sides of the inlet and outlet of the impurity removal box, the two stripping plates are respectively rotatably mounted on the two mounting bars, the two stripping plates are both provided with through holes matching the multiple comb teeth, the multiple comb teeth are respectively slidably inserted in the through holes of the multiple stripping plates, and the two stripping plates are respectively elastically connected to the two mounting bars through the two spring sheets; when the two comb plates are close to the cotton roll fibers, the multiple comb teeth penetrate through the multiple through holes of the two stripping plates to comb the cotton roll fibers, and when the two comb plates are away from the cotton roll fibers, the two stripping plates strip off the cotton fibers and other impurities on the multiple comb teeth to improve the impurity removal efficiency.

[0010] Preferably, it also includes an air inlet duct and an air outlet duct, which are respectively installed on both sides of the debris removal box, and are both connected to the debris removal chamber of the debris removal box; the air inlet duct is connected to an external air supply system, and the air outlet duct is connected to an external exhaust system, and air is transported to the interior of the debris removal chamber of the debris removal box through the air inlet duct, so that the air carries the impurities and discharges them through the air outlet duct, thereby improving the debris removal efficiency.

[0011] Preferably, it also includes a connecting pipe, an air outlet and two mounting rods, the input end of the connecting pipe is connected to the output end of the air inlet pipe, the output end of the connecting pipe is connected to the input end of the air outlet, the output end of the air outlet faces the middle of the impurity removal chamber of the impurity removal box, and the two sides of the air outlet are installed on the inner walls of the impurity removal box on both sides through two mounting rods; by arranging the connecting pipe and the air outlet, the wind force is more concentrated, the cotton roll fibers are blown away, the dust on the cotton roll fibers is blown off, and the dust removal efficiency is improved.

[0012] Preferably, it also includes an arm plate and a second pull rod, and the air outlet is rotatably installed in the impurity removal chamber of the impurity removal box through two mounting rods, one end of the arm plate is connected to the mounting rod, the other end of the arm plate is rotatably connected to one end of the second pull rod, and the other end of the second pull rod is rotatably connected to the pull rod; when the motor drives the swing arm to rotate and the swing arm drives the pull rod to move, the pull rod pulls the arm plate to swing back and forth through the second pull rod, and the arm plate drives the air outlet to swing through the mounting rod, so that the wind force output by the air outlet blows the cotton roll fibers comprehensively, thereby improving the impurity removal efficiency.

[0013] Compared with the prior art, the utility model has the following beneficial effects: compared with the prior art, the cotton roll fibers can be vibrated and shaken, so that the cotton roll fibers can be comprehensively combed and impurities removed, the impurity removal effect is better, and the practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the side section structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the axonometric structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the swing rod, comb plate, comb teeth, push rod, debris removal box and drive assembly;

[0017] Figure 4 It is a schematic diagram of the structure of the pendulum rod, comb plate, comb teeth, push rod and drive assembly;

[0018] Figure 5 It is a schematic diagram of the structure of the comb plate, comb teeth, mounting strips, stripping plates and spring sheets;

[0019] Figure 6 It is a structural diagram of the connecting pipe, the air outlet, the mounting rod, the arm plate and the pull rod.

[0020] Markings in the attached drawings: 1. combing machine body; 2. cotton roll roller; 3. combing assembly; 4. swing rod; 5. combing plate; 6. comb teeth; 7. push rod; 8. motor; 9. swing arm; 10. pull rod; 11. mounting strip; 12. stripping plate; 13. spring sheet; 14. debris removal box; 15. mounting seat; 16. screw; 17. air inlet pipe; 18. air outlet pipe; 19. connecting pipe; 20. air outlet; 21. mounting rod; 22. arm plate; 23. pull rod 2. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Example 1

[0023] like Figures 1 to 4As shown, a cotton roll impurity removal combing machine includes a combing machine body 1, a cotton roll roller 2 and a combing assembly 3, the cotton roll roller 2 is installed on the upper part of the combing machine body 1, and the combing assembly 3 is installed on the lower part of the combing machine body 1; it also includes four swing rods 4, two comb plates 5, a plurality of comb teeth 6, two push rods 7 and a driving assembly, the two comb plates 5 are arranged opposite to each other on the left and right, the two comb plates 5 are arranged up and down, and a plurality of comb teeth 6 are arranged on the opposite surfaces of the two comb plates 5, the two ends of the two comb plates 5 are rotatably connected to the outer ends of the four swing rods 4, the middle parts of the four swing rods 4 are provided with rotating shafts, the two ends of the two push rods 7 are rotatably connected to the inner ends of the four swing rods 4, the two push rods 7 are arranged opposite to each other, and the driving assembly is installed on the combing machine body 1, and the driving assembly drives the two push rods 7 to reciprocate; it also includes a trash removal box 14, a plurality of mounting seats 15 and a plurality of screws 16, and the trash removal box 14 A debris removal chamber is arranged inside, an inlet is arranged on the upper end surface of the debris removal box 14, and an outlet is arranged on the lower end surface of the debris removal box 14, the inlet and the outlet are communicated with the debris removal chamber, two combing plates 5, two push rods 7 and four rocker rods 4 are all located in the debris removal chamber of the debris removal box 14, mounting seats 15 are arranged on both sides of the debris removal box 14, a plurality of screw rods 16 are respectively rotatably screwed on the plurality of mounting seats 15, the plurality of mounting seats 15 are clamped and connected to the combing machine body 1, and the inner ends of the plurality of screw rods 16 are in contact with the combing machine body 1; the driving assembly includes a motor 8, a swing arm 9 and a pull rod 10, the four rocker rods 4 are respectively rotatably connected to the inner wall of the debris removal box 14 through a rotating shaft, the motor 8 is mounted on the debris removal box 14, the inner end of the swing arm 9 is mounted on the output shaft of the motor 8, one end of the pull rod 10 is rotatably connected to the outer end of the swing arm 9, and the other end of the pull rod 10 is rotatably connected to the push rod 7.

[0024] During operation, the installation seat 15 and the screw 16 are provided to facilitate the installation and removal of the dust removal box 14 on the combing machine body 1. The dust removal box 14 protects the extracted cotton roll fibers. The cotton roll is installed on the cotton roll roller 2. After the cotton roll fibers are extracted, they are combed by the combing assembly 3 and then transported to the next process. After the cotton roll fibers are extracted from the cotton roll, they pass between the two combing plates 5. The motor 8 drives the swing arm 9 to rotate. The swing arm 9 drives the push rod 7 to move back and forth through the pull rod 10, so that the two push rods 7 drive the inner ends of the four swing rods 4 to swing back and forth around the rotating shaft of the swing rod 4 respectively, so that the outer ends of the four swing rods 4 drive the two combing plates 5 to swing back and forth around the rotating shaft of the swing rod 4 respectively, and the two combing plates 5 reciprocately hit the cotton roll fibers, so that the cotton roll fibers shake and the impurities thereon fall off. At the same time, the two combing plates 5 drive the multiple comb teeth 6 to reciprocately intersperse and comb the cotton roll fibers, so that the multiple comb teeth 6 block the impurities on the cotton roll fibers, thereby realizing cotton roll dust removal.

[0025] Example 2

[0026] like Figure 4 and Figure 5As shown, on the basis of Example 1, it also includes two mounting bars 11, two stripping plates 12 and two spring sheets 13, the two mounting bars 11 are respectively mounted on the top and bottom of the debris removal box 14, the two mounting bars 11 are respectively located on the sides of the inlet and outlet of the debris removal box 14, the two stripping plates 12 are respectively rotatably mounted on the two mounting bars 11, the two stripping plates 12 are both provided with through holes matching the multiple comb teeth 6, the multiple comb teeth 6 are respectively slidably inserted in the through holes of the multiple stripping plates 12, and the two stripping plates 12 are respectively elastically connected to the two mounting bars 11 through the two spring sheets 13.

[0027] When the two combing plates 5 are close to the cotton roll fibers, the multiple comb teeth 6 penetrate through the multiple through holes of the two stripping plates 12 to comb the cotton roll fibers. When the two combing plates 5 are away from the cotton roll fibers, the two stripping plates 12 strip off the cotton fibers and other impurities on the multiple comb teeth 6.

[0028] Example 3

[0029] like Figure 3 and Figure 6 As shown, on the basis of embodiment 1, it also includes an air inlet pipe 17 and an air outlet pipe 18, which are respectively installed on both sides of the impurity removal box 14, and the air inlet pipe 17 and the air outlet pipe 18 are both connected to the impurity removal chamber of the impurity removal box 14; it also includes a connecting pipe 19, an air outlet head 20 and two mounting rods 21, the input end of the connecting pipe 19 is connected to the output end of the air inlet pipe 17, the output end of the connecting pipe 19 is connected to the input end of the air outlet head 20, and the output end of the air outlet head 20 is connected to the input end of the air outlet head 20. The outlet end faces the middle of the impurity removal chamber of the impurity removal box 14, and the two sides of the air outlet head 20 are installed on the inner walls of the two sides of the impurity removal box 14 through two mounting rods 21; it also includes an arm plate 22 and a pull rod 23, and the air outlet head 20 is rotatably installed inside the impurity removal chamber of the impurity removal box 14 through the two mounting rods 21. One end of the arm plate 22 is connected to the mounting rod 21, and the other end of the arm plate 22 is rotatably connected to one end of the pull rod 23, and the other end of the pull rod 23 is rotatably connected to the pull rod 10.

[0030] The air inlet pipe 17 is connected to an external air supply system, and the air outlet pipe 18 is connected to an external exhaust system. Air is transported to the interior of the impurity removal chamber of the impurity removal box 14 through the air inlet pipe 17. By arranging the connecting pipe 19 and the air outlet head 20, the wind force is more concentrated, and the cotton roll fibers are blown to blow off the dust and the like on the cotton roll fibers. When the motor 8 drives the swing arm 9 to rotate and the swing arm 9 drives the pull rod 10 to move, the pull rod 10 pulls the arm plate 22 to swing back and forth through the pull rod 23, and the arm plate 22 drives the air outlet head 20 to swing through the mounting rod 21, so that the wind force output by the air outlet head 20 blows the cotton roll fibers comprehensively, so that the air drives the impurities and discharges them through the air outlet pipe 18.

[0031] like Figures 1 to 6As shown, a cotton roll impurity removal combing machine of the utility model is provided. When the cotton roll is working, first, the cotton roll is installed on the cotton roll roller 2. After the cotton roll fibers are extracted, they are combed by the combing assembly 3 and then transported to the next process. After the cotton roll fibers are extracted from the cotton roll, they pass through the inlet and outlet of the impurity removal box 14 and pass between two combing plates 5. Then, the motor 8 drives the swing arm 9 to rotate. The swing arm 9 drives the push rod 7 to move back and forth through the pull rod 10, so that the two push rods 7 drive the inner ends of the four swing rods 4 to swing back and forth around the rotating shaft of the swing rod 4 respectively, so that the outer ends of the four swing rods 4 drive the two combing plates 5 to swing back and forth around the rotating shaft of the swing rod 4 respectively, and the two combing plates 5 reciprocately hit the cotton roll fibers, so that the cotton roll fibers The cotton roll fibers are shaken to remove impurities thereon, and then the two combing plates 5 drive the multiple comb teeth 6 to reciprocate and interweave and comb the cotton roll fibers, so that the multiple comb teeth 6 block the impurities on the cotton roll fibers. When the two combing plates 5 are away from the cotton roll fibers, the two stripping plates 12 strip off the cotton fibers and other impurities on the multiple comb teeth 6. Finally, when the motor 8 drives the swing arm 9 to rotate and the swing arm 9 drives the pull rod 10 to move, the pull rod 10 pulls the arm plate 22 to swing back and forth through the pull rod 23, and the arm plate 22 drives the air outlet 20 to swing through the mounting rod 21, so that the wind force output by the air outlet 20 blows the cotton roll fibers comprehensively, so that the air drives the impurities and discharges them through the air outlet pipe 18.

[0032] The main functions achieved by this utility model are:

[0033] 1. It can vibrate and shake the cotton roll fibers, and carry out comprehensive combing and impurity removal, with better impurity removal effect;

[0034] 2. Fully blow air to the cotton roll fibers to improve the efficiency of impurity removal;

[0035] 3. Remove cotton fibers and other impurities from multiple comb teeth to improve the efficiency of impurity removal.

[0036] The utility model is a cotton roll impurity removal combing machine, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; the utility model is a cotton roll impurity removal combing machine, and the combing machine body 1, cotton roll roller 2, combing assembly 3, comb teeth 6, motor 8, stripping plate 12, spring sheet 13, screw 16, air inlet pipe 17, air outlet pipe 18, connecting pipe 19, and air outlet head 20 are purchased on the market. Technical personnel in the industry only need to install and operate it according to the accompanying instruction manual, and there is no need for technical personnel in this field to pay creative labor.

[0037] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cotton lap impurity removal combing machine, comprising a combing machine body (1), a cotton lap roller (2) and a combing assembly (3), wherein the cotton lap roller (2) is mounted on the upper part of the combing machine body (1), and the combing assembly (3) is mounted on the lower part of the combing machine body (1); characterized in that: The invention also comprises four swing rods (4), two combing plates (5), a plurality of comb teeth (6), two push rods (7) and a driving assembly. The two combing plates (5) are arranged opposite to each other on the left and right sides, and the two combing plates (5) are arranged up and down. The two combing plates (5) are arranged on opposite surfaces. The two ends of the two combing plates (5) are respectively rotatably connected to the outer ends of the four swing rods (4). The middle parts of the four swing rods (4) are each provided with a rotating shaft. The two ends of the two push rods (7) are respectively rotatably connected to the inner ends of the four swing rods (4). The two push rods (7) are arranged opposite to each other. The driving assembly is mounted on the combing machine body (1). The driving assembly drives the two push rods (7) to move back and forth.

2. A lap combing machine for removing impurities as claimed in claim 1, characterized in that: The utility model also comprises a dust removal box (14), a plurality of mounting seats (15) and a plurality of screw rods (16); a dust removal chamber is arranged inside the dust removal box (14); an inlet is arranged on the upper end surface of the dust removal box (14); an outlet is arranged on the lower end surface of the dust removal box (14); the inlet and the outlet are communicated with the dust removal chamber; two combing plates (5), two push rods (7) and four swing rods (4) are all located in the dust removal chamber of the dust removal box (14); mounting seats (15) are arranged on both sides of the dust removal box (14); a plurality of screw rods (16) are respectively rotatably screwed on the plurality of mounting seats (15); the plurality of mounting seats (15) are clamped and connected to the combing machine body (1); and the inner ends of the plurality of screw rods (16) are in contact with the combing machine body (1).

3. A lap trash removal combing machine as claimed in claim 2, characterized in that: The driving assembly comprises a motor (8), a swing arm (9) and a pull rod (10); the four swing rods (4) are rotatably connected to the inner wall of the dust removal box (14) via a rotating shaft; the motor (8) is mounted on the dust removal box (14); the inner end of the swing arm (9) is mounted on the output shaft of the motor (8); one end of the pull rod (10) is rotatably connected to the outer end of the swing arm (9); and the other end of the pull rod (10) is rotatably connected to the push rod (7).

4. A lap trash removal combing machine as claimed in claim 2, characterized in that: The utility model also comprises two mounting bars (11), two stripping plates (12) and two spring plates (13). The two mounting bars (11) are respectively mounted on the top and bottom of the impurity removal box (14). The two mounting bars (11) are respectively located on the sides of the inlet and outlet of the impurity removal box (14). The two stripping plates (12) are respectively rotatably mounted on the two mounting bars (11). Through holes matching the plurality of comb teeth (6) are provided on the two stripping plates (12). The plurality of comb teeth (6) are respectively slidably inserted in the through holes of the plurality of stripping plates (12). The two stripping plates (12) are respectively elastically connected to the two mounting bars (11) via the two spring plates (13).

5. A lap trash removal combing machine as claimed in claim 2, characterized in that: It also includes an air inlet pipe (17) and an air outlet pipe (18), which are respectively installed on both sides of the impurity removal box (14), and the air inlet pipe (17) and the air outlet pipe (18) are both communicated with the impurity removal chamber of the impurity removal box (14).

6. A lap trash removal combing machine as claimed in claim 5, characterized in that: It also comprises a connecting pipe (19), an air outlet (20) and two mounting rods (21); the input end of the connecting pipe (19) is connected to the output end of the air inlet pipe (17); the output end of the connecting pipe (19) is connected to the input end of the air outlet (20); the output end of the air outlet (20) faces the middle of the impurity removal chamber of the impurity removal box (14); and the two sides of the air outlet (20) are mounted on the inner walls of the impurity removal box (14) via the two mounting rods (21).

7. A lap trash removal combing machine as claimed in claim 6, characterized in that: It also includes an arm plate (22) and a second pull rod (23). The air outlet (20) is rotatably installed inside the impurity removal chamber of the impurity removal box (14) through two installation rods (21). One end of the arm plate (22) is connected to the installation rod (21), and the other end of the arm plate (22) is rotatably connected to one end of the second pull rod (23), and the other end of the second pull rod (23) is rotatably connected to the pull rod (10).