Multifunctional three-roller cotton cleaner with protection mechanism

Abstract

The application discloses a multifunctional three-roller cotton cleaning machine provided with a protection mechanism, and relates to the technical field of cotton cleaning machines, which comprises support rings, protection doors and equipment boxes. Two support rings are symmetrically fixed to the two sides of the equipment box. The inside of each support ring is hingedly connected with two symmetrically distributed protection doors. The two sides of the protection doors and the equipment box are separated from each other, and the two sides of the support rings, the protection doors and the equipment boxes form cavities. When the cotton cleaning machine is running, the protection doors are closed, so that the cavities formed by the support rings, the protection doors and the equipment boxes are in a sealed state. At this time, the belt pulley and the driving belt do not interfere with the outside world when running. The rotation of the belt pulley and the driving belt does not cause harm to personnel while ensuring the stable operation of the belt pulley and the driving belt. The opening and closing of the protection doors facilitate the maintenance of the equipment in the equipment box.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cotton cleaning machines, in particular to a multifunctional three-roller cotton cleaning machine with a protection mechanism. BACKGROUND

[0002] A cotton cleaning machine is a mechanical device used in cotton processing, mainly used to remove impurities such as plant fibers, soil, leaves, and insect damage from cotton, thereby improving the purity and quality of cotton.

[0003] In the process of using the existing cotton cleaning machine, the protection of the cotton cleaning machine is generally achieved by a protective cover and other protection structures to prevent personnel from being injured. The mutual connection between the protection structure and the cotton cleaning machine may hinder the maintenance of the cotton cleaning machine when maintaining the cotton cleaning machine.

[0004] Prior Art 1 (Chinese Patent with Application No. CN220597730U and Application Date of August 16, 2023) discloses a cotton cleaning mechanism for a spinning machine. The suction cotton machine is fixed on the connecting beam through a screw rod, facilitating the disassembly and installation of the suction cotton machine. Two symmetrical telescopic assemblies are provided on the outer wall of the protective cover. The telescopic assemblies are actuated by a circular button, a fixed block, and a spring, allowing the protective cover to be easily disassembled and installed. This improves the convenience and practicality of the device by cleaning the cotton inside the suction cotton machine.

[0005] Prior Art 2 (Chinese Patent with Application No. CN114277467A and Application Date of December 28, 2021) discloses a cotton cleaning machine that facilitates quick processing of fluff. The cotton is fed into the main body of the cotton cleaning machine for cleaning at a low level through the cooperation of the above-mentioned structures, greatly facilitating the feeding of workers and improving work efficiency. The automatic dredging is achieved through the cooperation of the dredging device and the air suction mechanism.

[0006] Prior Art 1 and Prior Art 2 optimize the structure of the cotton cleaning machine to facilitate the disassembly of the protection structure. However, the protection structure of the cotton cleaning machine is fixed to the cotton cleaning machine, making it inconvenient to maintain the cotton cleaning machine. SUMMARY

[0007] The present application aims to provide a multifunctional three-roller cotton cleaning machine with a protection mechanism to solve the problem of inconvenient maintenance of the cotton cleaning machine in the process of using the cotton cleaning machine.

[0008] In order to achieve the above object, the present application provides the following technical scheme: A multifunctional three-roller cotton cleaning machine with a protection mechanism, comprising a support ring, a protection door and an equipment box, the support ring is provided with two, and the two support rings are symmetrically fixedly connected to the two sides of the equipment box, the inside of the support ring is hingedly connected with two symmetrically distributed protection doors, and the two sides of the protection door and the equipment box are separated from each other, and the support ring, the protection door and the equipment box form a cavity on the two sides.

[0009] The top of the equipment box is fixedly connected with an inlet hopper, and the bottom of the inlet hopper is communicated with the inside of the equipment box, the top of the equipment box is provided with an opening, and the two sides of the opening are symmetrically fixedly connected with sliding rails, and the two ends of the sliding rails are fixedly connected with limiting blocks, the outside of the sliding rails is slidably connected with equidistantly distributed sliding blocks, the top of the two sliding blocks on the two sliding rails is fixedly connected with a support connecting rod, and a protection cloth is fixedly connected between every two support connecting rods, the sliding blocks, the support connecting rods and the protection cloth are fixedly connected to form an integral whole, and the integral whole covers the opening on the top of the equipment box.

[0010] Preferably, the inside of the equipment box is fixedly connected with a cleaning box, and the main structure of the cleaning box is composed of three barrel-shaped structures which are communicated with each other, one end of the cleaning box close to the inlet hopper is provided with an inlet opening, and the other end of the cleaning box away from the inlet opening is fixedly connected with an outlet opening, and the outlet opening is communicated with the inside of the cleaning box.

[0011] Preferably, the inside of the cleaning box is rotatably connected with equidistantly distributed first cleaning rollers, second cleaning rollers and third cleaning rollers, and the first cleaning rollers, the second cleaning rollers and the third cleaning rollers are respectively distributed in the three barrel-shaped structures which constitute the main structure of the cleaning box.

[0012] Preferably, the outside of the first cleaning roller is fixedly connected with equidistantly distributed inclined teeth in the form of a ring, and the outside of the second cleaning roller and the third cleaning roller is fixedly connected with tooth-shaped inclined strips in the form of a ring, and the density of the tooth-shaped inclined strips on the outside of the third cleaning roller is greater than that of the tooth-shaped inclined strips on the outside of the second cleaning roller, the direction of the inclined teeth on the outside of the first cleaning roller is consistent with that of the tooth-shaped inclined strips on the outside of the third cleaning roller, and the direction of the tooth-shaped inclined strips on the outside of the second cleaning roller is opposite to that of the tooth-shaped inclined strips on the outside of the third cleaning roller.

[0013] Preferably, the bottom of the cleaning box is fixedly connected with two symmetrically distributed air suction pipes, and the bottom of the air suction pipe is fixedly connected with a connecting pipe, the inside of the air suction pipe is the same as that of the connecting pipe, and the two air suction pipes are respectively located at the bottom of the first cleaning roller and the third cleaning roller, and the connecting pipe and the outlet opening both extend to the outside of the side of the equipment box away from the inlet hopper.

[0014] Preferably, the equipment box has symmetrically distributed mounting holes on both sides, and a support plate facing the inside of the first cleaning roller is fixedly connected to the bottom of the mounting holes. A fixing seat is fixedly connected to the top of each support plate. A partition is fixedly connected in the middle of the equipment box, and the partition divides the bottom of the equipment box into an isolation chamber.

[0015] Preferably, the top of the support plate at the bottom of the mounting hole is fixedly connected to a fixed seat, and a drive roller is rotatably connected between two fixed seats that are symmetrically distributed on both sides of the equipment box. There are three drive rollers, and the three drive rollers form a triangular structure. A conveyor belt is rotatably connected to the outside of the three drive rollers.

[0016] Preferably, a pressing roller and two feeding rollers are rotatably connected between the two fixed seats, with the pressing roller located at the top of the conveyor belt and the two feeding rollers close to each other and aligned with the cotton inlet on the side away from the conveyor belt.

[0017] Preferably, the first cleaning roller, the second cleaning roller, and the third cleaning roller are all fixedly connected to a pulley at the same end, and a drive belt is rotatably connected to the outer side of the three pulleys. The drive belt is driven by a motor, and the drive belt drives the first cleaning roller and the third cleaning roller to rotate in the same direction by driving the pulleys to rotate, and the rotation direction of the second cleaning roller is opposite to that of the first cleaning roller and the third cleaning roller.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This multi-functional three-roller cotton cleaner with a protective mechanism closes the protective door during operation, sealing the cavity formed by the support ring, the protective door, and the equipment box. At this time, the pulley and drive belt do not interfere with the outside world during operation. This ensures the stable operation of the pulley and drive belt while preventing the rotation of the pulley and drive belt from causing injury to personnel. Furthermore, the opening and closing of the protective door facilitates maintenance of the equipment inside the equipment box.

[0020] Furthermore, as the cotton passes over the top of the first cleaning roller and the top of the third cleaning roller, the exhaust fan is connected to the connecting pipe. The connecting pipe performs an exhaust operation on the suction pipe located at the bottom of the first cleaning roller and the third cleaning roller, so that the impurities left by the cotton outside the first cleaning roller and the third cleaning roller during the processing are extracted, thus cleaning the cotton. At the same time as cleaning the cotton, the cotton is processed by the first cleaning roller, the second cleaning roller and the third cleaning roller.

[0021] Furthermore, during the use of the cotton cleaning machine, pulling the support rod moves the support rod, causing multiple sliders to move outside the slide rail until two adjacent support rods move away from each other, causing the protective cloth between the two support rods to extend. This allows the protective cloth to completely cover the opening at the top of the equipment box, preventing dust from the cotton cleaning machine from polluting the external environment during processing. At the same time, the complete coverage of the opening at the top of the equipment box by the protective cloth prevents debris from falling into the equipment box.

[0022] Furthermore, when the cotton cleaning machine is stopped, pulling the support rod causes the support rod to move the slider closer to each other, thereby causing the protective cloth to fold between the two support rods. At this time, the opening on the top of the equipment box will be open, making it convenient for personnel to maintain and clean the cotton cleaning machine. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the opening structure of the protective door of the present invention;

[0025] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the cleaning roller structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the cleaning box of the present invention;

[0028] Figure 6 This is a schematic diagram of the slide rail structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the protective fabric structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the slider structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the cotton pressing roller structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the drive belt structure of the present invention.

[0033] In the diagram: 1. Support ring; 2. Protective door; 3. Equipment box; 4. Cotton inlet hopper; 5. Slide rail; 6. Limit block; 7. Sliding block; 8. Support connecting rod; 9. Protective cloth; 10. Cleaning box; 11. Cotton inlet; 12. Cotton outlet; 13. First cleaning roller; 14. Second cleaning roller; 15. Third cleaning roller; 16. Suction pipe; 17. Connecting pipe; 18. Mounting hole; 19. Isolation chamber; 20. Fixed seat; 21. Drive roller; 22. Conveyor belt; 23. Pressing roller; 24. Feeding roller; 25. Pulley; 26. Drive belt. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0035] Please see Figure 1 - Figure 10 The present invention provides the following technical solution:

[0036] A multifunctional three-roller cotton cleaning machine with a protective mechanism includes a support ring 1, a protective door 2, and an equipment box 3. There are two support rings 1, and the two support rings 1 are symmetrically fixedly connected to both sides of the equipment box 3. The inside of each support ring 1 is hinged to two symmetrically distributed protective doors 2. The protective doors 2 and the two sides of the equipment box 3 are separated from each other, and the support rings 1, the protective doors 2, and the two sides of the equipment box 3 form a cavity.

[0037] A cotton inlet hopper 4 is fixedly connected to one side of the top of the equipment box 3, and the bottom of the cotton inlet hopper 4 is connected to the inside of the equipment box 3. An opening is provided on the top of the equipment box 3, and slide rails 5 are symmetrically fixedly connected to both sides of the opening. Limiting blocks 6 are fixedly connected to both ends of the slide rails 5. Sliding sliders 7 are equidistantly distributed on the outside of the slide rails 5. Supporting rods 8 are fixedly connected to the top of two symmetrically distributed sliders 7 on the two slide rails 5. A protective cloth 9 is fixedly connected between every two supporting rods 8. The sliders 7, supporting rods 8 and protective cloth 9 are fixedly connected to each other to form a whole, and this whole covers the opening on the top of the equipment box 3.

[0038] The cleaning box 10 is fixedly connected inside the equipment box 3. The main structure of the cleaning box 10 consists of three interconnected barrel-shaped structures. The cleaning box 10 has a cotton inlet 11 at one end near the cotton inlet hopper 4, and a cotton outlet 12 is fixedly connected at the other end away from the cotton inlet 11. The cotton outlet 12 communicates with the inside of the cleaning box 10.

[0039] The cleaning box 10 is rotatably connected to a first cleaning roller 13, a second cleaning roller 14, and a third cleaning roller 15, which are equidistantly distributed. The first cleaning roller 13, the second cleaning roller 14, and the third cleaning roller 15 are respectively distributed inside three interconnected barrel-shaped structures that constitute the main structure of the cleaning box 10.

[0040] The outer side of the first cleaning roller 13 is fixedly connected with oblique teeth that are evenly distributed in a ring. The outer sides of the second cleaning roller 14 and the third cleaning roller 15 are both fixedly connected with toothed oblique strips that are distributed in a ring. The density of the toothed oblique strips on the outer side of the third cleaning roller 15 is greater than that on the outer side of the second cleaning roller 14. The oblique teeth on the outer side of the first cleaning roller 13 and the toothed oblique strips on the outer side of the third cleaning roller 15 are in the same direction. The toothed oblique strips on the outer side of the second cleaning roller 14 are oriented in the opposite direction to the toothed oblique strips on the outer side of the third cleaning roller 15.

[0041] Two symmetrically distributed suction pipes 16 are fixedly connected to the bottom of the cleaning box 10, and a connecting pipe 17 is fixedly connected to the bottom of the suction pipe 16. The inside of the suction pipe 16 is the same as the inside of the connecting pipe 17. The two suction pipes 16 are located at the bottom of the first cleaning roller 13 and the third cleaning roller 15, respectively. The connecting pipe 17 and the cotton outlet 12 both extend to the outside of the equipment box 3 on the side away from the cotton inlet hopper 4.

[0042] The equipment box 3 has symmetrically distributed mounting holes 18 on both sides, and a support plate facing the inside of the first cleaning roller 13 is fixedly connected to the bottom of the mounting holes 18. A fixing seat 20 is fixedly connected to the top of each support plate. A partition is fixedly connected in the middle of the equipment box 3, and the partition divides the bottom of the equipment box 3 to form an isolation chamber 19.

[0043] The top of the support plate at the bottom of the mounting hole 18 is fixedly connected to a fixed seat 20. A drive roller 21 is rotatably connected between two fixed seats 20 that are symmetrically distributed on both sides of the equipment box 3. There are three drive rollers 21, and the three drive rollers 21 form a triangular structure. A conveyor belt 22 is rotatably connected to the outside of the three drive rollers 21.

[0044] A pressing roller 23 and two feeding rollers 24 are rotatably connected between the two fixed seats 20. The pressing roller 23 is located at the top of the conveyor belt 22, and the two feeding rollers 24 are close to each other and the side away from the conveyor belt 22 is aligned with the cotton inlet 11.

[0045] The first cleaning roller 13, the second cleaning roller 14, and the third cleaning roller 15 are all fixedly connected to a pulley 25 at the same end, and a drive belt 26 is rotatably connected to the outside of the three pulleys 25. The drive belt 26 is driven by a motor, and the drive belt 26 drives the first cleaning roller 13 and the third cleaning roller 15 to rotate in the same direction by driving the pulleys 25 to rotate. The second cleaning roller 14 rotates in the opposite direction to the first cleaning roller 13 and the third cleaning roller 15. Example 2:

[0046] Based on Example 1, its specific working principle is as follows:

[0047] This is a multi-functional three-roller cotton cleaner with a protective mechanism. During operation, the motor drives three pulleys 25 to rotate. While the pulleys 25 and drive belts 26 are running, they are located inside the cavities formed by the support ring 1, the protective door 2, and both sides of the equipment box 3. When the cotton cleaner is running, the protective door 2 is closed, sealing the cavities formed by the support ring 1, the protective door 2, and the equipment box 3. At this time, the pulleys 25 and drive belts 26 do not interfere with the outside environment. This ensures the stable operation of the pulleys 25 and drive belts 26 and prevents their rotation from causing injury to personnel. Furthermore, the opening and closing of the protective door 2 facilitates maintenance of the equipment inside the equipment box 3.

[0048] During the operation of the cotton cleaning machine, the drive roller 21 will rotate inside the equipment box 3, causing the three drive rollers 21 to drive the conveyor belt 22 to rotate on its outside. At this time, cotton is added into the cotton hopper 4, and the cotton will move downward along the cotton hopper 4 until the cotton inside the cotton hopper 4 moves to the top of the conveyor belt 22. The conveyor belt 22 transports the cotton at the top towards the pressing roller 23. When the cotton is transported to the bottom of the pressing roller 23, the pressing roller 23 and the conveyor belt 22 will compress the cotton so that the cotton can enter between the two feeding rollers 24. The feeding rollers 24 rotate in opposite directions. Through the rotation of the two feeding rollers 24, the cotton is transported through the cotton inlet 11 into the cotton inlet 11.

[0049] When the cotton is inside the cleaning box 10, the motor drives the drive belt 26 to rotate, causing the three pulleys 25 to rotate simultaneously. This causes the first cleaning roller 13, the second cleaning roller 14, and the third cleaning roller 15 to rotate inside the cleaning box 10. First, the cotton will contact the first cleaning roller 13. When the cotton contacts the first cleaning roller 13, the first cleaning roller 13 will cause the cotton to rotate around it inside the cleaning box 10, causing the cotton to rotate between the first cleaning roller 13 and the inner wall of the cleaning box 10. Because the first cleaning roller 13 has multiple helical teeth fixedly connected to its outer side in a ring-shaped, equidistant distribution, the first cleaning roller 13 will disperse the accumulated cotton. When the cotton moves to the first cleaning roller 15... 3. At the junction of the first cleaning roller 13 and the second cleaning roller 14, the first cleaning roller 13 and the second cleaning roller 14 rotate in opposite directions. At this time, the oblique teeth on the outside of the first cleaning roller 13 and the toothed oblique strips on the outside of the second cleaning roller 14 apply opposite forces to the cotton, causing the cotton fibers to separate from each other. Subsequently, the cotton will follow the second cleaning roller 14 to the inside of the third cleaning roller 15. When the cotton moves between the second cleaning roller 14 and the third cleaning roller 15, the toothed oblique strips on the outside of the second cleaning roller 14 and the third cleaning roller 15 are in opposite directions and rotate in opposite directions, so that the second cleaning roller 14 and the third cleaning roller 15 further separate the cotton fibers.

[0050] When cotton is processed inside the cleaning box 10 by the first cleaning roller 13, the second cleaning roller 14, and the third cleaning roller 15, the cotton moves within the cleaning box 10. The cotton inside the cleaning box 10 enters from the cotton inlet 11 between the cleaning box 10 and the first cleaning roller 13, moves from the top of the first cleaning roller 13 to the junction of the second cleaning roller 14, and then moves to the bottom of the second cleaning roller 14. After passing the bottom of the second cleaning roller 14, the cotton passes through the junction of the second cleaning roller 14 and the third cleaning roller 15, passes the top of the third cleaning roller 15, and then exits outside the device through the cotton outlet 12. When the cotton passes the top of the first cleaning roller 13 and the top of the third cleaning roller 15, the exhaust fan is connected to the connecting pipe 17. The connecting pipe 17 performs an exhaust operation on the suction pipe 16 located at the bottom of the first cleaning roller 13 and the third cleaning roller 15, so that the impurities left by the cotton outside the first cleaning roller 13 and the third cleaning roller 15 during the processing are extracted, thus cleaning the cotton.

[0051] When the cotton cleaning machine is in use, pulling the support rod 8 moves it, causing the support rod 8 to move multiple sliders 7 outside the slide rail 5 until two adjacent support rods 8 move away from each other. This causes the protective cloth 9 between the two support rods 8 to extend, thus completely covering the opening at the top of the equipment box 3. This prevents dust from the cotton cleaning machine from polluting the external environment during processing. At the same time, the complete coverage of the opening at the top of the equipment box 3 by the protective cloth 9 prevents debris from falling into the equipment box 3. When the cotton cleaning machine is stopped, pulling the support rod 8 causes the support rod 8 to move the sliders 7 closer together, causing the protective cloth 9 to fold between the two support rods 8. At this time, the opening at the top of the equipment box 3 will be open, making it easier for personnel to maintain and clean the cotton cleaning machine.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional three-roller cotton cleaning machine with a protective mechanism, comprising a support ring (1), a protective door (2) and an equipment box (3), wherein there are two support rings (1), and the two support rings (1) are symmetrically fixedly connected to both sides of the equipment box (3), the interior of each support ring (1) is hinged to two symmetrically distributed protective doors (2), and the protective doors (2) and both sides of the equipment box (3) are separated from each other, and the support rings (1), the protective doors (2) and both sides of the equipment box (3) form a cavity; Its features are: The top side of the equipment box (3) is fixedly connected to a cotton inlet hopper (4), and the bottom of the cotton inlet hopper (4) is connected to the inside of the equipment box (3). The top of the equipment box (3) is provided with an opening, and slide rails (5) are fixedly connected symmetrically on both sides of the opening. Limit blocks (6) are fixedly connected to both ends of the slide rails (5). Sliding sliders (7) are equidistantly distributed on the outside of the slide rails (5). Support rods (8) are fixedly connected to the top of two sliders (7) that are symmetrically distributed on the two slide rails (5). Protective cloth (9) is fixedly connected between each pair of support rods (8). The sliders (7), support rods (8) and protective cloth (9) are fixedly connected to each other to form a whole, and this whole covers the opening on the top of the equipment box (3).

2. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 1, characterized in that: The cleaning box (10) is fixedly connected inside the equipment box (3), and the main structure of the cleaning box (10) is composed of three interconnected barrel-shaped structures. The cleaning box (10) has a cotton inlet (11) at one end near the cotton inlet hopper (4), and a cotton outlet (12) is fixedly connected at the other end of the cleaning box (10) away from the cotton inlet (11), and the cotton outlet (12) communicates with the inside of the cleaning box (10).

3. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 2, characterized in that: The cleaning box (10) is rotatably connected with a first cleaning roller (13), a second cleaning roller (14) and a third cleaning roller (15) that are equally spaced apart. The first cleaning roller (13), the second cleaning roller (14) and the third cleaning roller (15) are respectively distributed inside three interconnected barrel-shaped structures that constitute the main structure of the cleaning box (10).

4. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 3, characterized in that: The first cleaning roller (13) has a fixedly connected oblique teeth that are evenly distributed in a ring on its outer side, and the second cleaning roller (14) and the third cleaning roller (15) have fixedly connected oblique teeth that are distributed in a ring on their outer sides. The density of the oblique teeth on the outer side of the third cleaning roller (15) is greater than that on the outer side of the second cleaning roller (14). The oblique teeth on the outer side of the first cleaning roller (13) and the oblique teeth on the outer side of the third cleaning roller (15) are in the same direction, and the oblique teeth on the outer side of the second cleaning roller (14) are oriented in the opposite direction to the oblique teeth on the outer side of the third cleaning roller (15).

5. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 4, characterized in that: The bottom of the cleaning box (10) is fixedly connected to two symmetrically distributed suction pipes (16), and the bottom of the suction pipes (16) is fixedly connected to a connecting pipe (17). The inside of the suction pipes (16) is the same as the inside of the connecting pipes (17). The two suction pipes (16) are located at the bottom of the first cleaning roller (13) and the third cleaning roller (15), respectively. The connecting pipe (17) and the cotton outlet (12) both extend to the outside of the equipment box (3) away from the cotton hopper (4).

6. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 1, characterized in that: The equipment box (3) has symmetrically distributed mounting holes (18) on both sides, and the bottom of the mounting holes (18) is fixedly connected to a support plate facing the inside of the first cleaning roller (13), and the top of each support plate is fixedly connected to a fixing seat (20). The equipment box (3) has a partition fixedly connected in the middle, and the partition divides the bottom of the equipment box (3) to form an isolation chamber (19).

7. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 6, characterized in that: The top of the support plate at the bottom of the mounting hole (18) is fixedly connected to a fixed seat (20), and a drive roller (21) is rotatably connected between two fixed seats (20) that are symmetrically distributed on both sides of the equipment box (3). There are three drive rollers (21), and the three drive rollers (21) form a triangular structure. A conveyor belt (22) is rotatably connected to the outside of the three drive rollers (21).

8. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 7, characterized in that: A pressing roller (23) and two feeding rollers (24) are rotatably connected between the two fixed seats (20), with the pressing roller (23) located on top of the conveyor belt (22) and the two feeding rollers (24) close to each other and aligned with the cotton inlet (11) on the side away from the conveyor belt (22).

9. A multi-functional three-roller cotton cleaning machine with a protective mechanism according to claim 3, characterized in that: The first cleaning roller (13), the second cleaning roller (14) and the third cleaning roller (15) are all fixedly connected to a pulley (25) at the same end, and a drive belt (26) is rotatably connected to the outside of the three pulleys (25). The drive belt (26) is driven by a motor, and the drive belt (26) drives the first cleaning roller (13) and the third cleaning roller (15) to rotate in the same direction by driving the pulleys (25). The second cleaning roller (14) rotates in the opposite direction to the first cleaning roller (13) and the third cleaning roller (15).

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