Shadowless lamp structure of color sorter

Abstract

The shadowless lamp structure comprises a color sorting machine frame, a material conveying crawler belt and a shadowless lamp assembly, the shadowless lamp assembly comprises a cylindrical lampshade and a plurality of lamp tubes installed on the inner wall of the cylindrical lampshade, the material conveying crawler belt is installed on the front side of the upper end of the color sorting machine frame, and the cylindrical lampshade is installed below the tail end of the material conveying crawler belt; a color sorting box is installed on the rear side of the upper end of the color sorting rack, a camera is arranged in the color sorting box, and the camera is installed right opposite to the axis of the cylindrical lampshade of the shadowless lamp assembly. According to the shadowless lamp structure of the color sorter, the shadowless lamp assembly is installed below the tail end of the conveying crawler belt, a matrix is formed by a plurality of lamp tubes installed on the inner wall of the cylindrical lampshade in the shadowless lamp assembly, images shot by the two cameras are free of shadows, the visual recognition effect is good, the color sorting effect is good, use is convenient, and reliability is high.

Description

Technical Field

[0001] The invention relates to the technical field of color sorters, in particular to a shadowless lamp structure of a color sorter. Background Art

[0002] Color sorter is a device that uses photoelectric detection technology to automatically sort out particles of different colors in granular materials based on the differences in the optical properties of the materials. Therefore, optical visual differences are one of the important factors that determine the effect of color sorting.

[0003] At present, in the existing color sorters, when the materials pass through the visual area of ​​the lighting, due to the installation position of the lighting, shadows are easily generated, thus affecting the color sorting effect. Summary of the invention

[0004] The purpose of the present invention is to provide a shadowless lamp structure for a color sorter to solve the above defects.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A shadowless lamp structure of a color sorter comprises a color sorter frame, a feed crawler and a shadowless lamp assembly, wherein the shadowless lamp assembly comprises a cylindrical lampshade and a plurality of lamp tubes installed on the inner wall of the cylindrical lampshade, the feed crawler is installed on the front side of the upper end of the color sorter frame, the cylindrical lampshade is installed below the end of the feed crawler, a color sorting box is installed on the rear side of the upper end of the color sorter frame, a camera is arranged in the color sorting box, and the camera is installed facing the axis center line of the cylindrical lampshade of the shadowless lamp assembly.

[0007] Preferably, the camera includes camera 1 and camera 2, and background plate 1 and background plate 2 are installed on the inner wall of the cylindrical lampshade. The axis line of camera 1, the cylindrical lampshade and background plate 1 are in a straight line, and the axis line of camera 2, the cylindrical lampshade and background plate 2 are in a straight line.

[0008] Preferably, the lamp tubes are arranged in at least three groups, with two lamps in each group and symmetrically arranged about the axis of the cylindrical lampshade; the three lamp tubes in each group, one lamp, and three lamp tubes in three groups are arranged at intervals with the background board 1 and the background board 2.

[0009] Preferably, a receiving hopper is installed in the color sorting machine frame, and the receiving hopper is installed at the lower rear side of the shadowless lamp assembly.

[0010] Preferably, a material inlet through which material passes is arranged on the outer wall of the cylindrical lampshade located at the end of the conveying crawler, and a material outlet through which material passes is arranged on the outer wall of the cylindrical lampshade located above the receiving hopper.

[0011] Preferably, the color sorting boxes facing the camera one and the camera two are each provided with a light hole one and are respectively installed with a light-transmitting plate one and a light-transmitting plate two, the outer walls of the cylindrical lampshade opposite to the light-transmitting plate one and the light-transmitting plate two are respectively provided with a light hole two and a light hole three for light passing through, the camera one, the light-transmitting plate one, the light hole two, the axis line of the cylindrical lampshade and the background plate one are in a straight line, and the camera two, the light-transmitting plate two, the light hole three, the axis line of the cylindrical lampshade and the background plate two are in a straight line.

[0012] Preferably, the movement trajectory of the material thrown out from the end of the conveying crawler intersects with the axis of the cylindrical lampshade.

[0013] Preferably, the lamp tubes include lamp tube one, lamp tube two, lamp tube three, lamp tube four, lamp tube five and lamp tube six, and the lamp tube one and lamp tube two, lamp tube three and lamp tube four, lamp tube five and lamp tube six are symmetrically arranged on the inner wall of the cylindrical lampshade with the axis of the cylindrical lampshade; the background board one is arranged between lamp tube two and lamp tube six, the background board two is arranged between lamp tube two and lamp tube four, and the lamp tube six, background board one, lamp tube two, background board two and lamp tube four are on the inner wall at the lower front side of the cylindrical lampshade.

[0014] Preferably, the lamp tube further comprises a plurality of independently arranged lamp tubes 7, and the lamp tubes 7 and the material inlet or the material outlet are symmetrically arranged with respect to the axis of the cylindrical lampshade.

[0015] Preferably, circular lampshade end plates are installed at both ends of the cylindrical lampshade, and end fixing plates are installed on the outer end surfaces of the lampshade end plates. The cylindrical lampshade is fixedly mounted on the color sorting machine frame through the two end fixing plates.

[0016] The beneficial effects of the present invention are:

[0017] The present invention discloses a shadowless lamp structure for a color sorter. A shadowless lamp assembly is installed below the end of a feeding crawler belt. A plurality of lamp tubes in the shadowless lamp assembly are installed on the inner wall of a cylindrical lamp cover to form a matrix. When materials pass through the cylindrical lamp cover, under the action of the plurality of lamp tubes and a plurality of background plates, images taken by two cameras have no shadows, and have good visual recognition effect, excellent color sorting effect, easy use, and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Right view of the overall structure of the present invention;

[0019] Figure 2 : A top view of the structure of the feeding crawler and the shadowless lamp assembly of the present invention;

[0020] Figure 3 : Figure 1 Schematic diagram of the structure of the medium color selection box and shadowless lamp assembly;

[0021] Figure 4 : Figure 1 Schematic diagram of the structure of the shadowless lamp assembly. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Embodiment 1:

[0024] Reference Figure 1-4 The present invention proposes a shadowless lamp structure for a color sorter, comprising a color sorter frame 1, a feeder belt 3 and a shadowless lamp assembly 4, wherein the feeder belt 3 is installed on the front side of the upper end of the color sorter frame 1.

[0025] The shadowless lamp assembly 4 includes a cylindrical lampshade 41 and a plurality of lamp tubes 44 mounted on the inner wall of the cylindrical lampshade 41. The cylindrical lampshade 41 is mounted below the end of the feeding crawler 3, and a background plate 1 45 and a background plate 2 46 are mounted on the inner wall of the cylindrical lampshade 41. The lamp tubes 44 are arranged in at least three groups, each with two lamp tubes 44 symmetrically arranged about the axis of the cylindrical lampshade 41; one lamp tube 44 in each group, a total of three lamp tubes 44 in three groups, and the background plate 1 45 and the background plate 2 46 are arranged at intervals.

[0026] A color sorting box 2 is installed at the rear side of the upper end of the color sorting frame 1. A camera is arranged in the color sorting box 2. The camera is installed facing the axis R0 of the cylindrical lampshade 41 of the shadowless lamp assembly 4. The camera includes a camera 1 21 and a camera 2 22. The axis of the camera 1 21, the cylindrical lampshade 41 and the background plate 1 45 are on a straight line S2. The axis of the camera 2 22, the cylindrical lampshade 41 and the background plate 2 46 are on a straight line S3.

[0027] The material thrown out from the end of the conveying crawler 3 will fall through the axis line R0 of the cylindrical lampshade 41, and its motion trajectory is S1. The intersection of the motion trajectory S1 and the axis line R0 is the material reference point R. When the material passes through the material reference point R or its vicinity, the material is irradiated by a number of lamps 4 and reflected or scattered by the background plate 1 45 and the background plate 2 46, and then fed back to the camera 1 21 and the camera 2 22. At this time, the material photos taken by the camera 1 21 and the camera 2 22 will have no shadows, which can effectively improve the visual recognition effect of the color sorter.

[0028] Embodiment 2:

[0029] Reference Figure 1-4The present invention provides a shadowless lamp structure for a color sorter, comprising a color sorter frame 1, a feed crawler 3 and a shadowless lamp assembly 4. The feed crawler 3 is mounted on the front side of the upper end of the color sorter frame 1, the shadowless lamp assembly 4 is mounted below the end of the feed crawler 3, a receiving hopper 5 is installed in the color sorter frame 1, and the receiving hopper 5 is mounted below the rear side of the shadowless lamp assembly 4.

[0030] The shadowless lamp assembly 4 includes a cylindrical lampshade 41 and a plurality of lamp tubes 44 mounted on the inner wall of the cylindrical lampshade 41. Circular lampshade end plates 42 are mounted on both ends of the cylindrical lampshade 41, and end fixing plates 43 are mounted on the outer end surfaces of the lampshade end plates 42. The cylindrical lampshade 41 is fixedly mounted on the color sorting frame 1 through the two end fixing plates 43.

[0031] The cylindrical lampshade 41 is installed below the end of the conveyor track 3. A material inlet for material to pass through is provided on the outer wall of the cylindrical lampshade 41 located at the end of the conveyor track 3, that is, on the upper outer wall on the front side of the cylindrical lampshade 41. A material outlet for material to pass through is provided on the outer wall of the cylindrical lampshade 41 located above the receiving hopper 5, that is, on the lower outer wall on the rear side of the cylindrical lampshade 41.

[0032] A color sorting box 2 is installed at the rear side of the upper end of the color sorting frame 1. A camera is arranged in the color sorting box 2. The camera is installed facing the axis R0 of the cylindrical lampshade 41 of the shadowless lamp assembly 4. The camera includes a camera 1 21 and a camera 2 22. A background plate 1 45 and a background plate 2 46 are installed on the inner wall of the cylindrical lampshade 41. The background plate 1 45 and the background plate 2 46 are used to see the material clearly and provide a reference signal. The reflective characteristics of the background plate 1 45 and the background plate 2 46 are equivalent to those of qualified products, but are greatly different from those of defective products. After that, the optical signal is converted into an electrical signal by the sensor and transmitted to the electronic control system to drive the spray valve to remove the heterochromatic material.

[0033] The color sorting box 2 facing the camera 1 21 and the camera 2 22 is provided with a light hole 1 and a light plate 1 23 and a light plate 2 24 are installed respectively. The outer wall of the tubular lampshade 41 facing the light plate 1 23 and the light plate 2 24, that is, the outer wall on the upper rear side of the tubular lampshade 41, is provided with a light hole 2 and a light hole 3 for light to pass through. The axis R0 of the camera 1 21, the light plate 1 23, the light hole 2, the tubular lampshade 41 and the background plate 1 45 are on a straight line S2, and the axis R0 of the camera 2 22, the light plate 2 24, the light hole 3, the tubular lampshade 41 and the background plate 2 46 are on a straight line S3.

[0034] At least three groups of lamp tubes 44 are installed inside the cylindrical lampshade 41, each group of two lamp tubes are symmetrically arranged about the axis of the cylindrical lampshade 41. One lamp tube 44 in each group, three lamp tubes 44 in total in three groups, are arranged at intervals with the background plate 1 45 and the background plate 2 46.

[0035] If there are three groups of lamp tubes 44 installed inside the cylindrical lampshade 41, specifically, the three groups of lamp tubes 44 include lamp tube 1 441, lamp tube 2 442, lamp tube 3 443, lamp tube 4 444, lamp tube 5 445, and lamp tube 6 446, and lamp tube 1 441 and lamp tube 2 442, lamp tube 3 443 and lamp tube 4 444, and lamp tube 5 445 and lamp tube 6 446 are symmetrically arranged with the axis of the cylindrical lampshade 41 and installed on the inner wall of the cylindrical lampshade 41. Background board 1 45 is arranged between lamp tube 2 442 and lamp tube 6 446, background board 2 46 is arranged between lamp tube 2 442 and lamp tube 4 444, and lamp tube 6 446, background board 1 45, lamp tube 2 442, background board 2 46, and lamp tube 4 444 are located on the inner wall at the lower front side of the cylindrical lampshade 41. The second light-transmitting hole is located on the outer wall of the tubular lampshade 41 between the first lamp tube 441 and the fifth lamp tube 445 , and the third light-transmitting hole is located on the outer wall of the tubular lampshade 41 between the first lamp tube 441 and the third lamp tube 443 .

[0036] Similarly, the lamp tubes 44 installed inside the cylindrical lampshade 41 can be arranged in more than three groups, that is, lamp tube one 441 and lamp tube two 442, lamp tube three 443 and lamp tube four 444, lamp tube five 445 and lamp tube six 446 can all be arranged in one group, two groups or more.

[0037] A plurality of independently arranged lamp tubes 7 447 are also installed inside the cylindrical lampshade 41. The lamp tubes 7 447 are arranged on the inner wall of the cylindrical lampshade 41 opposite to the material inlet or material outlet, that is, the lamp tubes 7 447 and the material inlet or material outlet are symmetrically arranged with respect to the axis of the cylindrical lampshade 41.

[0038] The motion trajectory of the material thrown out from the end of the feeding crawler 3 intersects with the axis of the cylindrical lampshade 41. That is, the intersection of the motion trajectory S1 and the axis R0 of the material thrown out from the end of the feeding crawler 3 is the material reference point R. The extension angles of several lamp tubes 44 overlap and compensate each other. By adjusting the position of the lamp tube 44 on the inner wall of the cylindrical lampshade 41 and the diffuse reflection of the cylindrical lampshade 41, the purpose of the camera observing the material clearly without ghosting is achieved. When the material passes through the material reference point R or its vicinity, the material is fed back to the camera 1 21 and the camera 2 22 under the illumination of several lamp tubes 4 and the reflection or scattering of the background plate 1 45 and the background plate 2 46. At this time, the material photos taken by the camera 1 21 and the camera 2 22 will have no shadows, which can effectively improve the visual recognition effect of the color sorter.

[0039] The present invention discloses a shadowless lamp structure for a color sorter. A shadowless lamp assembly 4 is installed below the end of a feeding crawler 3. A plurality of lamp tubes 44 installed on the inner wall of a cylindrical lamp cover 41 in the shadowless lamp assembly 4 are used to form a matrix. When materials pass through the cylindrical lamp cover 41, under the action of the plurality of lamp tubes 44 and a plurality of background plates, images taken by two cameras have no shadows, and have good visual recognition effect, excellent color sorting effect, easy use, and high reliability.

[0040] The above is an exemplary description of the invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A shadowless lamp structure for a color sorter, comprising a color sorter frame (1), a material conveying crawler (3) and a shadowless lamp assembly (4), characterized in that: The shadowless lamp assembly (4) comprises a cylindrical lampshade (41) and a plurality of lamp tubes (44) mounted on the inner wall of the cylindrical lampshade (41); the feed track (3) is mounted on the front side of the upper end of the color sorting frame (1); the cylindrical lampshade (41) is mounted below the end of the feed track (3); a color sorting box (2) is mounted on the rear side of the upper end of the color sorting frame (1); a camera is arranged in the color sorting box (2); and the camera is mounted facing the axis of the cylindrical lampshade (41) of the shadowless lamp assembly (4).

2. According to the shadowless lamp structure of the color sorter according to claim 1, it is characterized in that: The camera comprises a camera 1 (21) and a camera 2 (22); a background plate 1 (45) and a background plate 2 (46) are installed on the inner wall of the cylindrical lampshade (41); the axis lines of the camera 1 (21), the cylindrical lampshade (41) and the background plate 1 (45) are in a straight line; the axis lines of the camera 2 (22), the cylindrical lampshade (41) and the background plate 2 (46) are in a straight line.

3. According to claim 2, a shadowless lamp structure of a color sorter is characterized in that: The lamp tubes (44) are arranged in at least three groups, with two lamp tubes in each group and symmetrically arranged about the axis of the cylindrical lampshade (41); one lamp tube in each group and three lamp tubes (44) in three groups are arranged at intervals with the background plate 1 (45) and the background plate 2 (46).

4. According to claim 3, a shadowless lamp structure of a color sorter is characterized in that: A material receiving hopper (5) is installed in the color sorting machine frame (1), and the material receiving hopper (5) is installed at the lower rear side of the shadowless lamp assembly (4).

5. The shadowless lamp structure of a color sorter according to claim 4, characterized in that: A material inlet through which material passes is arranged on the outer wall of the cylindrical lampshade (41) located at the end of the material conveying crawler (3), and a material outlet through which material passes is arranged on the outer wall of the cylindrical lampshade (41) located above the receiving hopper (5).

6. According to claim 2, a shadowless lamp structure of a color sorter is characterized in that: The color sorting box (2) facing the camera 1 (21) and the camera 2 (22) is provided with a light-transmitting hole 1 and is respectively installed with a light-transmitting plate 1 (23) and a light-transmitting plate 2 (24); the outer wall of the tubular lampshade (41) facing the light-transmitting plate 1 (23) and the light-transmitting plate 2 (24) is respectively provided with a light-transmitting hole 2 and a light-transmitting hole 3 for light to pass through; the axis of the camera 1 (21), the light-transmitting plate 1 (23), the light-transmitting hole 2, the tubular lampshade (41) and the background plate 1 (45) are in a straight line; the axis of the camera 2 (22), the light-transmitting plate 2 (24), the light-transmitting hole 3, the tubular lampshade (41) and the background plate 2 (46) are in a straight line.

7. The shadowless lamp structure of a color sorter according to claim 2, characterized in that: The movement trajectory of the material thrown out from the end of the conveying crawler (3) intersects with the axis of the cylindrical lampshade (41).

8. The shadowless lamp structure of a color sorter according to claim 5, characterized in that: The lamp tube (44) comprises lamp tube one (441), lamp tube two (442), lamp tube three (443), lamp tube four (444), lamp tube five (445), and lamp tube six (446). The lamp tube one (441), lamp tube two (442), lamp tube three (443), lamp tube four (444), lamp tube five (445), and lamp tube six (446) are all symmetrically arranged around the axis of the cylindrical lampshade (41) and installed in the cylindrical lampshade. shaped lampshade (41); the background plate one (45) is arranged between the second lamp tube (442) and the sixth lamp tube (446); the background plate two (46) is arranged between the second lamp tube (442) and the fourth lamp tube (444); and the sixth lamp tube (446), the background plate one (45), the second lamp tube (442), the background plate two (46) and the fourth lamp tube (444) are located on the inner wall at the lower front side of the cylindrical lampshade (41).

9. The shadowless lamp structure of a color sorter according to claim 8, characterized in that: The lamp tube (44) further comprises a plurality of independently arranged lamp tubes seven (447), wherein the lamp tubes seven (447) and the material inlet or the material outlet are symmetrically arranged with respect to the axis of the cylindrical lampshade (41).

10. The shadowless lamp structure of a color sorter according to claim 1, characterized in that: Circular lampshade end plates (42) are installed at both ends of the cylindrical lampshade (41), and end fixing plates (43) are installed on the outer end surfaces of the lampshade end plates (42). The cylindrical lampshade (41) is fixedly mounted on the color sorting machine frame (1) via the two end fixing plates (43).

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