Dust cleaning device for background roller of color sorter

Abstract

The utility model provides a dust cleaning device for a background roller of a color sorter, two ends of the background roller are arranged on a rack, an air brush capable of moving along the length direction of the background roller is adjacently arranged on the outer side of the wall of the background roller, and an air outlet of the air brush faces the wall surface of the background roller. When the air brush works, the high-pressure air source directly blows off dust on the surface of the background roller through the air outlet, non-contact cleaning of the background roller is achieved, the cleaning effect is good, and arrangement is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a background roller dust cleaning device for a color sorter. Background Art

[0002] A color sorter is a device that uses photoelectric technology to sort out different colored particles of materials to be sorted according to the difference in optical properties of the materials to be sorted. When screening certain materials, the color sorter will generate a lot of dust, debris or dust. These dusts adhere to the background roller of the color sorter and affect the normal operation of the color sorter, which requires regular cleaning. The invention patent application entitled "Cleaning Device for Background Roller of Color Sorter" (CN105151721B) submitted by the applicant on September 8, 2015 discloses a cleaning device for the background roller of a color sorter, including a background roller rotatably arranged on a frame, and a scraper made of soft rubber material is arranged on one side of the background roller close to the discharge end of the conveyor belt, and the upper side of the scraper is consistent with the length direction of the background roller and is attached to the outer surface of the background roller. However, this solution still has some shortcomings: 1. The friction between soft rubber or other soft brushes and the background roller will generate static electricity, which will cause dust to be adsorbed on the background roller, making its cleaning effect worse; 2. Soft rubber is easy to wear after long-term friction and needs to be replaced, which is inconvenient to use. Utility Model Content

[0003] The utility model aims to provide a background roller cleaning device for a color sorter, which can efficiently and conveniently clean the dust on the surface of the background roller through a wind brush.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a background roller cleaning device for a color sorter, wherein both ends of the background roller are arranged on a frame, and a wind brush that can move along the length direction of the background roller is arranged adjacent to the outer side of the wall of the background roller, and the air outlet of the wind brush faces the wall surface of the background roller.

[0005] The utility model mainly arranges a movable wind brush near the outer side of the background roller. The high-pressure air source directly blows off the dust on the surface of the background roller through the air outlet of the wind brush, thereby realizing contactless cleaning of the background roller and avoiding scratches on the surface of the background roller. While efficiently cleaning, it occupies less space and is convenient to arrange. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 Isometric view of the background roller cleaning device of the color sorter;

[0007] Figure 2 for Figure 1 A partial enlarged view of

[0008] Figure 3 Schematic diagram of the wind brush after removing the wind brush cover;

[0009] Figure 4 is a schematic diagram of a gasket;

[0010] Figure 5 This is a schematic diagram of the rodless cylinder driving the wind brush to move. DETAILED DESCRIPTION

[0011] See also Figure 1-5 In the background roller cleaning device of the color sorter shown, both ends of the background roller 10 are arranged on the frame 1, and a wind brush 20 that can move along the length direction of the background roller 10 is arranged adjacent to the outer side of the wall of the background roller 10, and the air outlet 201 of the wind brush 20 faces the wall of the background roller 10.

[0012] In the above scheme, the wind brush 20 is connected to the high-pressure gas source, and the high-pressure gas is sprayed onto the wall surface of the background roller 10 through the air outlet 201 to blow off the dust on the surface of the background roller. There is a gap between the air outlet 201 and the wall of the background roller 10, and the driving mechanism drives the wind brush 20 to move along the length direction of the background roller 10, so that the wall surface of the background roller 10 can be cleaned. In this process, the wind brush 20 has no direct contact with the background roller 10, ensuring that the wall surface of the background roller will not be scratched; the method of high-pressure gas blowing dust can effectively avoid the influence of static electricity, and the cleaning effect is better.

[0013] More specifically, the wind brush 20 is in a semicircular ring shape as a whole, and an air outlet 201 is arranged on its inner arc side. A trachea plug connector 202 is connected to the side of the wind brush 20 away from the background roller 10, and an air duct 203 connecting the air outlet 201 and the trachea plug connector 202 is arranged in the wind brush 20. In the above scheme, the semicircular ring-shaped wind brush 20 only needs to clean the cylinder wall side of the working area of ​​the background roller 10, and the other side will not affect the operation of the color sorter even if it is not cleaned. Therefore, designing the wind brush 20 in a semicircular ring shape instead of a complete ring shape can save the space occupied by the wind brush 20, and the arrangement is more flexible and the air outlet 201 is more concentrated. When the wind brush 20 is working, the high-pressure air source enters the air duct 203 from the trachea plug connector 202, and then blows from the air outlet 201 to the cylinder wall surface of the background roller 10.

[0014] In order to ensure that the air outlet 201 blows the wall of the background roller 10 evenly, the semicircular ring core of the wind brush 20 is arranged concentrically with the core of the background roller 10. The distance between the wall of the background roller 10 and the inner arc side of the wind brush 20 is uniform, so that the blowing force of the high-pressure gas on the wall of the working area of ​​the background roller 10 is consistent.

[0015] Preferably, the wind brush 20 includes a semicircular wind brush body 21 and a wind brush cover 22, the wind brush body 21 is provided with an arc-shaped slot-shaped air duct 203 concentric with the wind brush 20, and the wind brush cover 22 is fixedly connected to the slot side of the air duct 203. In the above scheme, the wind brush 20 is split into the wind brush body 21 and the wind brush cover 22 for convenient manufacturing and assembly, the wind brush cover 22 is fixedly connected to the wind brush body 21 by bolts, and the inner arc side of the wind brush body 21 can be provided with an air outlet 201 connected to the air duct 203.

[0016] As another preferred embodiment, a gasket 23 is arranged between the wind brush body 21 and the wind brush cover 22, and the gasket 23 includes an arc portion 231 and a hook portion 232 attached to the wind brush body 21, the arc portion 231 is located between the slot of the air duct 203 and the outer wall of the wind brush 20 away from the background roller 10, and the hook portion 232 is located on the outer side of both ends of the slot of the air duct 203, and the notch portion surrounded by the arc portion 231 and the hook portion 232 forms the air outlet 201.

[0017] In the above solution, the gasket 23 can be made of rubber material. The gasket 23 plays two roles in this solution: first, as a seal, it can ensure the concentration of air outflow from the air outlet 201; second, the air outlet 201 is formed by the notch formed by the arc portion 231 and the hook portion 232. The thickness of the gasket 23 is the width of the air outlet 201, which reduces the manufacturing difficulty of the wind brush 20 and facilitates the flexible adjustment of the size of the air outlet 201.

[0018] In order to improve the cleaning effect of the wind brush 20, the air outlet direction of the air outlet 201 is arranged at an acute angle to the axis of the background roller 10. This solution can sweep the dust along the length direction of the background roller 10, and the dust is more easily blown off.

[0019] Preferably, a rodless cylinder 30 for driving the wind brush 20 to move is provided on the frame 1, and a cylinder body 31 of the rodless cylinder 30 is driven by air pressure to slide on a guide rod 32, and the guide rod 32 is arranged adjacent to and parallel to the background roller 10, and a wind brush fixing frame 33 fixedly connected to the two is arranged between the cylinder body 31 and the wind brush 20. In the above scheme, the rodless cylinder 30 is relatively smaller in size and more convenient to arrange. When the wind brush 20 is working, the cylinder body 31 sliding on the guide rod 32 drives the wind brush 20 to move along the tube length direction of the background roller 10 through the wind brush fixing frame 33, and the rod length of the guide rod 32 is consistent with the tube length of the background roller 10, so that the cleaning path of the wind brush 20 covers the entire working area of ​​the background roller 10.

Claims

1. A background roller cleaning device for a color sorter, wherein both ends of the background roller (10) are arranged on a frame (1), characterized in that: A wind brush (20) is arranged adjacent to the outer side of the wall of the background roller (10) and is movable along the length direction of the background roller (10), and an air outlet (201) of the wind brush (20) faces the wall surface of the background roller (10).

2. The background roller cleaning device for a color sorter according to claim 1, characterized in that: The wind brush (20) is in the shape of a semicircular ring as a whole, and an air outlet (201) is arranged on the inner arc side thereof; a side of the wind brush (20) away from the background roller (10) is connected to an air pipe plug connector (202); and an air duct (203) is arranged in the wind brush (20) to connect the air outlet (201) and the air pipe plug connector (202).

3. The background roller cleaning device of the color sorter according to claim 2 is characterized in that: The core of the semicircular ring of the wind brush (20) is arranged concentrically with the core of the background roller (10).

4. The background roller cleaning device for a color sorter according to claim 2, characterized in that: The wind brush (20) comprises a semi-circular wind brush body (21) and a wind brush cover (22); the wind brush body (21) is provided with an arc-shaped slot-shaped wind duct (203) concentric with the wind brush (20); and the wind brush cover (22) is fixedly connected to the slot side of the wind duct (203).

5. The background roller cleaning device for a color sorter according to claim 4, characterized in that: A gasket (23) is arranged between the wind brush body (21) and the wind brush cover (22), the gasket (23) comprising an arc portion (231) and a hook portion (232) attached to the wind brush body (21), the arc portion (231) being located between the notch of the wind duct (203) and the outer wall of the wind brush (20) away from the background roller (10), the hook portion (232) being located outside both ends of the notch of the wind duct (203), and a notch portion surrounded by the arc portion (231) and the hook portion (232) forming an air outlet (201).

6. The background roller cleaning device for a color sorter according to claim 1, characterized in that: The air outlet direction of the air outlet (201) is arranged at an acute angle to the axis of the background roller (10).

7. The background roller cleaning device for a color sorter according to claim 1, characterized in that: A rodless cylinder (30) for driving a wind brush (20) to move is arranged on the frame (1); a cylinder body (31) of the rodless cylinder (30) is driven by air pressure to slide on a guide rod (32); the guide rod (32) and the background roller (10) are arranged adjacent to and in parallel; a wind brush fixing frame (33) is arranged between the cylinder body (31) and the wind brush (20) and is fixedly connected to both.

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