Cleaning device for conveying belt of color sorter

Abstract

The invention relates to the field of color sorter auxiliary instruments, in particular to a color sorter conveying belt cleaning device which comprises a frame body and a driving mechanism arranged at one end of the frame body. Specifically, a plurality of rotatable auxiliary rollers are arranged on the inner side of the frame body, the driving mechanism is used for driving the belt and the auxiliary rollers to rotate, first protruding parts are arranged on the side faces of the two ends of the auxiliary rollers, a plurality of sets of cleaning plates and transverse plates are arranged in the frame body in parallel, and the transverse plates are fixed to the frame body. The two ends of the cleaning plate are inserted into moving grooves formed in the inner wall of the frame body, the transverse plate and the cleaning plate are connected through an arranged elastic piece, and the upper end face of the cleaning plate is attached to the belt. Through cooperation of the transverse plate and the cleaning plate, the reciprocating cleaning state is achieved, due to elastic recovery force in the springback process, the springback cleaning plate can generate an irregular swing type cleaning state, and the problem of print residue can be avoided while the belt surface cleaning effect is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary instruments for color sorters, and particularly to a cleaning device for the conveyor belt of a color sorter. Background Art

[0002] A color sorter is a device that sorts out different-color particles in materials based on the differences in the optical properties of the materials, using optoelectronic detection technology. When the color sorter is working, a conveyor belt is usually used to convey the materials. When conveying some large particles, it can work normally. However, when conveying some small particles or materials with a certain humidity such as sand and mud, some materials may adhere to the belt. Due to the cyclic nature of the belt, these adhered particles will affect the subsequent conveying of the materials, and thus affect the final color sorting effect.

[0003] To solve this problem, the prior art discloses a solution of fixing a cleaning brush on the mounting bracket of the conveyor belt. However, when the conventional cleaning brush is cleaning, since the belt is in a fixed cyclic state, and the cleaning brush forms a relative linear motion state with the belt after installation, this will cause linear marks to appear on the surface of the belt that the cleaning brush has passed over. These marks are formed due to the friction of the particles, the bending of the bristles during cleaning due to the shape of the brush body, etc., resulting in gaps. And the cleaning state that does not change for a long time will cause some materials to always pass through this gap. Some of the particles passing through the gap will pass through normally, while some will adhere to the surface of the belt due to extrusion because the particles are small or have a certain humidity, thus forming linear marks, seriously affecting the subsequent color sorting process. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides the following technical solutions: A cleaning device for the conveyor belt of a color sorter, comprising: a frame body and a driving mechanism arranged at one end of the frame body.

[0005] Specifically, a plurality of rotatable auxiliary rollers are arranged inside the frame body. The driving mechanism is used to drive the belt and the auxiliary rollers to rotate. Protrusions I are arranged on the side surfaces of both ends of the auxiliary rollers. A plurality of groups of cleaning plates and cross plates are arranged in parallel inside the frame body. The cross plates are fixed to the frame body. Both ends of the cleaning plates are inserted into moving grooves opened on the inner wall of the frame body. The cross plates and the cleaning plates are connected by elastic members arranged therebetween. The upper end surfaces of the cleaning plates are in contact with the belt. When the auxiliary rollers rotate, the protrusions I hit the cleaning plates to drive the cleaning plates to move along the lower end surface of the belt in an undirected planar movement state for cleaning.

[0006] As an improvement to the above technical solution, a baffle is provided on the upper end surface of the cleaning plate, the elastic member is vertically fixed between the baffle and the cross plate, a second slot is opened on one side of the baffle close to the cross plate, and when the auxiliary roller rotates to the lower side, the first protrusion is snapped into the second slot.

[0007] As an improvement to the above technical solution, the frame body includes two parallel side plates, the cross plate is arranged between the two side plates, and the moving groove is opened through the surface of the side plate.

[0008] As an improvement to the above technical solution, second protrusions are integrally formed at both ends of the cleaning plate, the second protrusions are inserted into the inside of the moving groove, the groove height of the moving groove is equal to the thickness of the second protrusions, and the width of the second protrusions is less than the groove width of the moving groove.

[0009] As an improvement to the above technical solution, the side plate is in the shape of a channel steel, one end of the side plate is inserted with an adjusting plate, a first mounting plate is arranged in the groove of the side plate, a second mounting plate is arranged at the end of the adjusting plate, the first mounting plate and the second mounting plate are fixed by bolts, a connecting groove is opened at the other end of the adjusting plate, and the shaft bodies at both ends of the main roller on the inner side of the belt are snapped into the inside of the connecting groove. A positioning member is arranged on the side of the connecting groove away from the main roller, and a connecting ring fixed to the shaft body at the end of the main roller is arranged at the end of the positioning member.

[0010] As an improvement to the above technical solution, a first slot is opened on the surface of the side plate, a waste box is inserted into the inside of the first slot, the upper part of the waste box is open and is located below the cleaning plate.

[0011] As an improvement to the above technical solution, a tensioning roller for adjusting the height of the belt is arranged between the side plates, and the ends of several auxiliary rollers rotate synchronously with the main roller through a synchronous belt.

[0012] As an improvement to the above technical solution, a support assembly is arranged at the lower end of the frame body, the support assembly includes a leg and a connecting member, a fixing hole is opened on the surface of the connecting member, and a bolt is inserted into the fixing hole to be fixed to the end of the leg. An arc-shaped groove is opened at the lower end of the connecting member, and a threaded hole is opened on the surface of the leg, and the threaded hole is located inside the arc-shaped groove.

[0013] As an improvement to the above technical solution, the lower end of the leg is in the shape of a channel steel, and a telescopic support rod is arranged at the bottom, and a sucker foot is connected to the end of the support rod.

[0014] As an improvement to the above technical solution, a scraping plate and a cleaning brush are arranged on the upper end surface of the cleaning plate, the scraping plate is located between the cleaning brush and the cross plate, the scraping plate is inclined and the end is in a blade shape, and the blade-shaped end of the scraping plate is attached to the surface of the belt in contact with the cleaning brush.

[0015] Advantages of the present invention: Through the cooperation between the cross plate and the cleaning plate, a reciprocating cleaning state is achieved. Due to the elastic restoring force during the rebound process, the rebounding cleaning plate can produce an irregular swinging cleaning state. This cleaning state can avoid the problem of linear imprints on the surface of the belt caused by a fixed cleaning path, and can avoid the problem of imprint residue while ensuring the cleaning effect on the surface of the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structure diagram of the present invention; Figure 2 is Figure 1 an enlarged structure diagram at A in Figure 3 is an exploded structure diagram of the present invention; Figure 4 is Figure 3 an enlarged structure diagram at B in Figure 5 is Figure 3 an enlarged structure diagram at C in Figure 6 is Figure 3 an enlarged structure diagram at D in Figure 7 is Figure 3 an enlarged structure diagram at E in Figure 8 is a top view structure diagram of the present invention; Figure 9 is Figure 8 a plane cross-sectional view at b-b in Figure 10 is Figure 9 an enlarged structure diagram at F in

[0017] Reference numerals: 10, frame; 11, side plate; 111, first mounting plate; 112, cross plate; 113, first slot; 114, moving slot; 12, adjusting plate; 121, connecting slot; 122, positioning member; 123, connecting ring; 124, second mounting plate; 13, auxiliary roller; 131, first protrusion; 14, cleaning plate; 141, scraping plate; 142, cleaning brush; 143, baffle; 144, second slot; 145, elastic member; 146, second protrusion; 15, synchronous belt; 16, tensioning roller; 17, waste box; 20, belt; 21, main roller; 211, transmission gear; 30, driving mechanism; 40, support assembly; 41, leg; 411, threaded hole; 42, connecting member; 421, arc-shaped slot; 422, fixing hole; 43, sucker foot; 431, support rod. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following describes the implementation manners of the present invention through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0019] In the prior art, in order to solve the problem of particulate attachment, a cleaning brush is fixed on the mounting bracket of the conveyor belt for treatment. However, when the conventional cleaning brush is cleaning, since the belt is in a fixed circulating state, and the cleaning brush forms a relative linear motion state with the belt after installation, this will cause linear marks to appear on the surface of the belt that the cleaning brush passes over. These marks are formed due to the friction of the particles, the bending of the bristles caused by the shape of the brush body during cleaning, etc., resulting in gaps. And the cleaning state that does not change for a long time will cause some materials to always pass through this gap. The particulate part passing through the gap will pass through normally, while part of the particles will adhere to the surface of the belt due to extrusion when the particles are small or have a certain humidity, thus forming linear marks, seriously affecting the subsequent color sorting process.

[0020] To solve the above problems, please refer to Figures 1 to 10 , and a cleaning device for the conveyor belt of a color sorter is provided, including: a frame body 10, and a driving mechanism 30 arranged at one end of the frame body 10.

[0021] Specifically, a plurality of rotatable auxiliary rollers 13 are arranged inside the frame body 10. The driving mechanism 30 is used to drive the belt 20 and the auxiliary rollers 13 to rotate. A first protruding portion 131 is arranged on the side surfaces of both ends of the auxiliary roller 13. A plurality of groups of cleaning plates 14 and cross plates 112 are arranged in parallel inside the frame body 10. The cross plates 112 are fixed to the frame body 10. Both ends of the cleaning plate 14 are inserted into the moving grooves 114 opened on the inner wall of the frame body 10. The cross plates 112 and the cleaning plates 14 are connected by elastic members 145 arranged therebetween. The upper end surface of the cleaning plate 14 is attached to the belt 20. When the auxiliary roller 13 rotates, the first protruding portion 131 impacts the cleaning plate 14 to drive the cleaning plate 14 to move along the lower end surface of the belt 20 in an indefinite planar movement state for cleaning.

[0022] The rotation of the belt 20 depends on the drive of the driving mechanism 30. The rotation of the belt 20 will drive the materials to be conveyed on the surface of the belt 20. After the conveying is completed, the lower part of the belt 20 will pass through the cleaning plate 14 for cleaning. Different from the traditional cleaning method, in this embodiment, the pushing function of the cleaning plate 14 is realized through the impact between the first protruding portion 131 and the cleaning plate 14, so that the cleaning plate 14 moves. Since the cleaning plate 14 is attached to the surface of the belt 20, a wiping effect is formed.

[0023] Since the connection of the cleaning plate 14 is carried out through the elastic member 145, and the protrusion 131 is fixed on the auxiliary roller 13 and rotates therewith, the pushed cleaning plate 14 will lose the pulling force and rebound after being pushed out a certain distance, and the elastic member 145 itself has a certain elastic recovery ability, which will form a state of elastic pulling and pushing of the cleaning plate 14. Due to the complexity of the display environment, this state will continue to decay and become irregular, which can ensure that the cleaning plate 14 produces an irregular cleaning state during the elastic rebound process. By cooperating with these cleaning plates 14 set on multiple auxiliary rollers 13, the problem of linear imprints on the cleaning plate 14 during the cleaning process can be avoided.

[0024] In one embodiment, see Figure 3 and Figure 5 A baffle 143 is provided on the upper end surface of the cleaning plate 14, and an elastic member 145 is vertically fixed between the baffle 143 and the horizontal plate 112. A slot 2 144 is opened on the side of the baffle 143 close to the horizontal plate 112. When the auxiliary roller 13 rotates to the bottom, the protrusion 131 is stuck in the slot 2 144.

[0025] A limitation is usually required here, namely that the distance between the notch of the second slot 144 and the corresponding central axis of the auxiliary roller 13 must be less than the distance between the central axis of the auxiliary roller 13 and the outermost side of the first protrusion 131, and at the same time, greater than the radius of the auxiliary roller 13. This arrangement ensures that the first protrusion 131 can always be inserted into the second slot 144 during the rotation of the auxiliary roller 13. In this way, it is ensured that each rotation of the auxiliary roller 13 can drive the cleaning plate 14 to generate a path displacement, and this path displacement forms an irregular periodic cleaning function of the cleaning plate 14.

[0026] In order to further improve the structure of the frame 10, please refer to Figures 1 to 4 The frame 10 includes two parallel side panels 11 , a transverse panel 112 is disposed between the two side panels 11 , and a movable slot 114 is formed through the surface of the side panels 11 .

[0027] The lateral position is limited by the two side plates 11 , and the movement grooves 114 for limiting the cleaning plate 14 are respectively opened on the inner side walls, so that the planar movement direction of the cleaning plate 14 can be limited.

[0028] In the above solution, the movement of the cleaning plate 14 is not restricted, which may affect the cleaning effect in the irregular state of rebound. To solve this problem, please refer to Figures 1 to 5The two ends of the cleaning plate 14 are integrally formed with a second protrusion 146, which is inserted into the interior of the movable groove 114. The groove height of the movable groove 114 is equal to the thickness of the second protrusion 146, and the width of the second protrusion 146 is less than the slot width of the movable groove 114.

[0029] The moving groove 114 is used to limit the movement state of the protrusion 146. Since the groove height of the moving groove 114 is equal to the thickness of the protrusion 146, this can ensure that the cleaning plate 14 can only move on the current plane, thereby ensuring that during the working process, no matter what the displacement state of the cleaning plate 14 is, it can always adhere to the surface of the belt 20 to achieve the cleaning effect.

[0030] In the above technical solution, the adjustment function of the belt 20 is not reflected. In order to solve this problem, please refer to Figures 1 to 4 The side plate 11 is in the shape of a channel steel, and an adjusting plate 12 is inserted into one end of the side plate 11. A mounting plate 111 is provided in the groove of the side plate 11, and a mounting plate 2 124 is provided at the end of the adjusting plate 12. The mounting plate 111 and the mounting plate 2 124 are fixed by bolts. A connecting groove 121 is provided at the other end of the adjusting plate 12, and the two end shafts of the main roller 21 on the inner side of the belt 20 are inserted into the connecting groove 121. A positioning piece 122 is provided on the side of the connecting groove 121 away from the main roller 21, and a connecting ring 123 fixed to the end shaft of the main roller 21 is provided at the end of the positioning piece 122.

[0031] There are usually two main rollers 21, which are respectively arranged on the inner side of the two ends of the belt 20. The structure usually includes a roller body and an axis structure installed at both ends of the roller body. The roller body is installed by fixing the axis structure. When driving, it is only necessary to control the end of one of the main rollers 21 to rotate. The power can be transmitted to the main roller 21 at the other end through the belt 20, thereby driving the belt 20 to circulate and realize the function of conveying materials.

[0032] In this embodiment, the length of the entire frame 10 is extended by inserting an adjustment plate 12, and this length can be adjusted according to the insertion length of the adjustment plate 12. Finally, the mounting plate 111 and the mounting plate 2 124 are fixed by screws, and reinforced and limited with nuts to ensure the stability of the structure. The side connecting groove 121 is used to install the main roller 21, and the position of the main roller 21 is limited by the positioning piece 122 installed on the side to prevent the main roller 21 from falling from the connecting groove 121. The positioning piece 122 is fixed on the side plate 11 to ensure the overall stability. When disassembly is required, the bolts fixing the side plate 11 are directly removed, and the entire main roller 21, the positioning piece 122 and the connecting ring 123 can be removed from the side plate 11.

[0033] During cleaning, a lot of particles will fall. In order to collect these particles, please refer toFigures 1 to 4 Specifically, a slot 113 is provided on the surface of the side plate 11, and a waste box 17 is inserted into the interior of the slot 113. The upper part of the waste box 17 is open and is located below the cleaning plate 14.

[0034] The waste box 17 inserted through the side is used to receive waste. The waste cleaned at the cleaning plate 14 will directly fall into the interior of the waste box 17 through the opening at the upper end of the waste box 17, thus completing the collection. After using for a period of time, the waste box 17 can be directly pulled out from the side, and the waste inside it can be processed. To facilitate the operation of the waste box 17, auxiliary components such as handles can be provided on the outer facade of the waste box 17 for easy extraction.

[0035] In the foregoing technical solution, in order to ensure the operating height, it is necessary to control the radii of each auxiliary roller 13 and the main roller 21 to be the same. However, this design solution will increase the cost, and the excessive width of the main roller 21 will also affect the design of the frame 10. To avoid this problem, specifically, please refer to Figure 1 、 Figure 8 、 Figure 9 、 Figure 10 A tensioning roller 16 for adjusting the height of the belt 20 is provided between the side plates 11, and the ends of several auxiliary rollers 13 are synchronously rotated with the main roller 21 through a synchronous belt 15.

[0036] The belt 20 is adjusted by the tensioning roller 16 to ensure that the lower end surface of the belt 20 can better contact the cleaning plate 14, and the upper end surface of the belt 20 can better contact the auxiliary roller 13. This design method can ensure the tension state of the entire belt 20, and at the same time can ensure that the belt 20 and the cleaning plate 14 are always in close contact, and can avoid cutting damage to the belt 20 caused by the slack state of the cleaning plate 14.

[0037] To further improve the overall structure of the device, please refer to Figure 1 、 Figure 3 、 Figure 5 and Figure 7 A support assembly 40 is provided at the lower end of the frame 10. The support assembly 40 includes legs 41 and a connecting member 42. A fixing hole 422 is provided on the surface of the connecting member 42, and a bolt is inserted into the fixing hole 422 to be fixed to the end of the leg 41. An arc-shaped groove 421 is provided at the lower end of the connecting member 42, and a threaded hole 411 is provided on the surface of the leg 41. The threaded hole 411 is located inside the arc-shaped groove 421.

[0038] When installing, first fix the connecting piece 42 on the support leg 41 through the fixing hole 422, and then fix the upper end of the connecting piece 42 to the lower end surface of the side plate 11, also by cooperating with bolts and nuts. The arc-shaped groove 421 at the bottom can be adjusted in angle according to the inclination requirement of the belt 20. Since the fixing hole 422 is always set at the center of the arc-shaped groove 421, it can be ensured that after fixing at the position of the fixing hole 422, within a certain range of adjustable angles, no matter how the connecting piece 42 rotates, the threaded hole 411 is always within the arc-shaped groove 421, thus ensuring the adjustability when the belt 20 needs to be inclined.

[0039] To further enhance the adjustment effect of the bottom support assembly 40, please refer to Figure 1 、 Figure 3 、 Figure 5 and Figure 7 , the lower end of the support leg 41 is in the shape of a channel steel, and a telescopic support rod 431 is provided at the bottom. The end of the support rod 431 is connected with a sucker foot 43.

[0040] Adjust the overall length of the entire support leg 41 through the support rod 431. The support rod 431 and the support leg 41 can be fixed and adjusted in a threaded manner, and the sucker foot 43 at the bottom can ensure the stability of the overall structure after inclination.

[0041] Furthermore, to enhance the cleaning effect on the belt 20, please refer to Figure 3 and Figure 4 , specifically, a scraping plate 141 and a cleaning brush 142 are provided on the upper end surface of the cleaning plate 14. The scraping plate 141 is located between the cleaning brush 142 and the cross plate 112. The scraping plate 141 is inclined, and the end is in a blade shape. The blade end of the scraping plate 141 is in contact with the surface of the belt 20 where the cleaning brush 142 is located.

[0042] First, scrape the waste on the surface of the belt 20 through the scraping plate 141, and then perform a brushing operation through the cleaning brush 142. The waste after cleaning falls into the interior of the waste box 17.

[0043] In addition, as shown in Figure 1 and Figure 5 , the belt 20 is driven by two main rollers 21, and one of the main rollers 21 is through Figure 5It is driven by the driving mechanism 30 therein. The driving mechanism 30 usually realizes driving through the cooperation of a simple motor, a transmission gear 211, and a transmission belt. By installing a transmission gear 211 at the end of one of the main rollers 21 and synchronously driving it with the gear at the power end of the motor through the transmission belt, the whole is driven to rotate. In this solution, a small gear (not shown in the figure) is further provided on the shaft body of the main roller 21. The small gear is meshed with the shaft body of the auxiliary roller 13 through a chain. The purpose of this is to ensure the synchronism of the rotation of the main roller 21 and the auxiliary roller 13.

[0044] Due to the design of the above structure, during operation, it is necessary to control the moving direction of the belt 20 to be towards the scraper 141 after the feeding at one end of the material feeding is completed. This can ensure that the rotation of the auxiliary roller 13 can stably pull the cleaning plate 14 to generate an irregular elastic cleaning state.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A cleaning device for a conveying belt of a color sorter, characterized in that, include: A frame (10), wherein a plurality of rotatable auxiliary rollers (13) are provided on the inner side of the frame (10), and a protrusion (131) is provided on the side of both ends of the auxiliary roller (13), and a plurality of groups of cleaning plates (14) and transverse plates (112) are provided in parallel inside the frame (10), wherein the transverse plates (112) are fixed to the frame (10), and both ends of the cleaning plates (14) are inserted into movable grooves (114) provided on the inner wall of the frame (10), and the transverse plates (112) and the cleaning plates (14) are connected by elastic members (145); A driving mechanism (30) provided at one end of the frame (10) for driving the belt (20) and the auxiliary roller (13) to rotate; The upper end surface of the cleaning plate (14) is in contact with the belt (20), and when the auxiliary roller (13) rotates, the protrusion (131) hits the cleaning plate (14) to drive the cleaning plate (14) to move along the lower end surface of the belt (20) in an undirected plane to clean.

2. The cleaning device for the conveying belt of a color sorter according to claim 1, wherein: The upper end surface of the cleaning plate (14) is provided with a baffle (143), and the elastic member (145) is vertically fixed between the baffle (143) and the transverse plate (112). A second slot (144) is provided on a side of the baffle (143) close to the transverse plate (112). When the auxiliary roller (13) rotates downward, the protrusion (131) is inserted into the second slot (144).

3. The cleaning device for the conveying belt of a color sorter according to claim 1, characterized in that: The frame (10) includes two side panels (11) arranged in parallel, the transverse panel (112) is arranged between the two side panels (11), and the movable groove (114) is opened through the surface of the side panels (11).

4. The cleaning device for the conveying belt of a color sorter according to claim 3, characterized in that: The two ends of the cleaning plate (14) are integrally formed with a second protrusion (146), and the second protrusion (146) is inserted into the interior of the movable groove (114). The groove height of the movable groove (114) is equal to the thickness of the second protrusion (146), and the width of the second protrusion (146) is smaller than the slot width of the movable groove (114).

5. The cleaning device for the conveying belt of a color sorter according to claim 3, wherein: The side plate (11) is in the shape of a channel steel, and an adjustment plate (12) is inserted into one end of the side plate (11), a mounting plate 1 (111) is provided in the groove of the side plate (11), and a mounting plate 2 (124) is provided at the end of the adjustment plate (12), and the mounting plate 1 (111) and the mounting plate 2 (124) are fixed by bolts. A connecting groove (121) is provided at the other end of the adjustment plate (12), and the two end shafts of the main roller (21) on the inner side of the belt (20) are inserted into the connecting groove (121). A positioning member (122) is provided on the side of the connecting groove (121) away from the main roller (21), and a connecting ring (123) fixed to the end shaft of the main roller (21) is provided at the end of the positioning member (122).

6. The cleaning device for the conveying belt of a color sorter according to claim 3, characterized in that: A slot 1 (113) is provided on the surface of the side plate (11), a waste box (17) is inserted into the slot 1 (113), and the upper portion of the waste box (17) is open and is located below the cleaning plate (14).

7. The cleaning device for the conveying belt of a color sorter according to claim 3, characterized in that: A tensioning roller (16) for adjusting the height of the belt (20) is arranged between the side plates (11), and the ends of a plurality of the auxiliary rollers (13) are synchronously rotated with the main roller (21) through a timing belt (15).

8. The cleaning device for the conveying belt of a color sorter according to claim 1, wherein: A support assembly (40) is arranged at the lower end of the frame body (10). The support assembly (40) includes legs (41) and a connecting member (42). A fixing hole (422) is formed in the surface of the connecting member (42), and a bolt is inserted into the fixing hole (422) to be fixed to the end of the leg (41). An arc-shaped groove (421) is formed at the lower end of the connecting member (42), and a threaded hole (411) is formed in the surface of the leg (41). The threaded hole (411) is located inside the arc-shaped groove (421).

9. The cleaning device for the conveying belt of a color sorter according to claim 8, characterized in that: The lower end of the leg (41) is in the shape of a channel steel, and a telescopic support rod (431) is arranged at the bottom. The end of the support rod (431) is connected with a sucker foot (43).

10. A cleaning device for a conveying belt of a color sorter according to any one of claims 1-9, characterized in that: A scraping plate (141) and a cleaning brush (142) are arranged on the upper end surface of the cleaning plate (14). The scraping plate (141) is located between the cleaning brush (142) and the cross plate (112). The scraping plate (141) is inclined, and the end is in a blade shape. The blade-shaped end of the scraping plate (141) is attached to the surface of the cleaning brush (142) and the belt (20).

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