Automatic falling and cleaning structure for fragments on front AOI backlight plate

Abstract

The utility model relates to the technical field of the photovoltaic industry, in particular to an automatic falling and cleaning structure for fragments on a front AOI backlight plate, which comprises a case, and a camera is fixedly connected to the inner wall of the case; the mesh belt is used for conveying the battery pieces; the mesh belt located on the upper portion is located between the machine case and the backlight plate body, and the section of the backlight plate body is in a conical hollow shape; the collecting frame is located below the backlight plate body and used for collecting fragments flowing down from the interior of the backlight plate body. The section of the backlight plate body is in the conical hollow shape, fragments falling into the backlight plate body downwards slide into the collecting frame under the action of gravity, the fragments falling at the upper end of the backlight plate body can automatically flow out, the use and maintenance cost is low, and the situation that in the prior art, generated fragments are left on the backlight plate and are not cleaned in time, and the service life of the backlight plate is prolonged is avoided. Therefore, the shooting area of the camera is shielded, AOI misrecognition is caused, and batch degradation is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of the photovoltaic industry, in particular to an automatic sliding and cleaning structure for debris on the front AOI backlight board. Background Art

[0002] In the current industry development, during the front detection of traditional AOI testing, the battery wafers are transported by the mesh belt at this time. During the operation, debris of the battery wafers will appear, and thus the debris will fall on the backlight board located below the mesh belt. Moreover, the distance between the backlight board and the mesh belt is about 1 - 2 centimeters, and the contact distance is relatively close, resulting in the dropped debris affecting the detection of the front camera.

[0003] Currently, in the industry, in order to better realize the use of the backlight board at the photographing position, the color of the front detection backlight board is changed from white to red, which can more accurately identify the edge position of the battery, but the following problems are also caused:

[0004] 1. The generated debris remains on the backlight board without being cleaned in time, thus blocking the camera photographing area, causing misidentification of AOI, and resulting in batch downgrading;

[0005] 2. Due to the small gap between the backlight board and the mesh belt, it is difficult to clean the dropped debris. Content of the Utility Model

[0006] The purpose of the utility model is to solve the defects existing in the prior art, and to propose an automatic sliding and cleaning structure for debris on the front AOI backlight board.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An automatic sliding and cleaning structure for debris on the front AOI backlight board, comprising:

[0009] A chassis, wherein a camera is fixedly connected to the inner wall of the chassis;

[0010] A mesh belt, which is used for transporting battery wafers;

[0011] A backlight board body, the mesh belt located above is between the chassis and the backlight board body, and the cross section of the backlight board body is in a conical hollow shape;

[0012] A collection box, which is located below the backlight board body and is used for collecting the debris flowing down from the backlight board body.

[0013] Preferably, an annular pipe is fixedly connected to the upper part of the inner wall of the backlight board body, an air inlet pipe is fixedly connected to the inner wall of the annular pipe, and a plurality of air jet holes inclined towards the inner wall of the backlight board body are opened on the inner wall of the annular pipe, and the openings of the air jet holes face downwards.

[0014] Preferably, it further includes a base, a vertical plate is fixedly connected to the upper end of the base, the lower end of the collection box is fixedly connected to the side wall of the vertical plate through a first plate, the side wall of the backlight panel body is fixedly connected to the side wall of the vertical plate through a second plate, and the chassis is connected to the side wall of the vertical plate through an adjusting mechanism.

[0015] Preferably, the adjusting mechanism includes a groove opened on the side wall of the vertical plate, a slider is slidably connected to the inner wall of the groove, the side wall of the slider is fixedly connected to the side wall of the chassis, a lead screw is rotatably connected to the inner wall of the groove, and the side wall of the lead screw is threadedly connected to the side wall of the slider.

[0016] Preferably, the upper end of the lead screw penetrates through the side wall of the vertical plate and is fixedly connected to a rotating wheel, a nut is threadedly connected to the side wall of the lead screw above the vertical plate, and the lower surface of the nut fits against the upper surface of the vertical plate.

[0017] The utility model has the following beneficial effects:

[0018] 1. The cross-section of the backlight panel body is arranged in a conical hollow shape, and the debris falling into the backlight panel body slides down under the action of gravity into the collection box, so that the debris falling on the upper end of the backlight panel body can automatically flow out. The use and maintenance costs are low, and there is no need for personnel to frequently maintain, avoiding the debris generated in the prior art remaining on the backlight panel without being cleaned in time, which will block the camera photographing area, causing misrecognition of AOI, resulting in batch downgrading, and due to the small gap between the backlight panel and the mesh belt position, it is difficult to clean the fallen debris.

[0019] 2. An annular pipe and air jet holes are provided, and the external gas can flow out from a plurality of air jet holes through the air inlet pipe and the annular pipe, blowing off the debris that may remain on the inner wall of the backlight panel body, increasing the cleanliness of the inner wall of the backlight panel body.

[0020] 3. An adjusting mechanism is provided. When the lead screw rotates clockwise or counterclockwise, the slider will drive the chassis to move up or down, adjusting the height of the camera, so that the camera can perform AOI recognition on battery slices of different thicknesses. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a structure for automatically sliding and cleaning debris on a front AOI backlight panel proposed by the utility model;

[0022] Figure 2 is Figure 1 the enlarged structural schematic diagram at A in

[0023] Figure 3 is Figure 1 the right view structural schematic diagram of

[0024] In the figure: 1, chassis; 2, camera; 3, mesh belt; 4, backlight panel body; 5, collection box; 6, annular tube; 7, intake pipe; 8, air jet hole; 9, base; 10, vertical plate; 11, first plate; 12, second plate; 13, slider; 14, groove; 15, lead screw; 16, nut. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Refer to Figures 1-3 , an automatic sliding and cleaning structure for debris on the front AOI backlight panel, including a chassis 1, and a camera 2 fixedly connected to the inner wall of the chassis 1; a mesh belt 3, the mesh belt 3 is used to convey battery wafers, and the camera 2 can perform AOI recognition on the front of the battery wafers conveyed on the mesh belt 3, which is the prior art.

[0027] The backlight panel body 4, which mainly provides the function of a background light curtain to ensure that the battery wafers can be fully captured by the camera. The mesh belt 3 located above is between the chassis 1 and the backlight panel body 4, and the cross-section of the backlight panel body 4 is in a conical hollow shape.

[0028] A collection box 5, the collection box 5 is located below the backlight panel body 4 and is used to collect the debris flowing down from the backlight panel body 4.

[0029] Further, the debris generated by the battery wafers conveyed on the mesh belt 3 will fall into the conical hollow-shaped backlight panel body 4, and then the debris will slide down under the action of gravity into the collection box 5. It can automatically flow out the debris falling on the upper end of the backlight panel body 4, with low use and maintenance costs, and does not require frequent maintenance by personnel, avoiding the situation in the prior art where the generated debris remains on the backlight panel and is not cleaned in time, which will block the camera's photographing area, causing misrecognition of AOI, resulting in batch downgrading, and due to the small gap between the backlight panel and the mesh belt, it is difficult to clean the fallen debris.

[0030] An annular tube 6 is fixedly connected to the upper part of the inner wall of the backlight panel body 4, an intake pipe 7 is fixedly connected to the inner wall of the annular tube 6, and a plurality of air jet holes 8 inclined towards the inner wall of the backlight panel body 4 are opened on the inner wall of the annular tube 6, and the openings of the air jet holes 8 face downwards.

[0031] Further, the intake pipe 7 is connected to an external air pump, and the external gas can be conveyed into the intake pipe 7 and flow out. Then, the external gas can flow out from the plurality of air jet holes 8 through the intake pipe 7 and the annular tube 6, blowing off the debris that may remain on the inner wall of the backlight panel body 4 and increasing the cleanliness of the inner wall of the backlight panel body 4.

[0032] It further includes a base 9. A vertical plate 10 is fixedly connected to the upper end of the base 9. The side wall of the vertical plate 10 is fixedly connected to the lower end of the collection frame 5 through a first plate 11. The side wall of the vertical plate 10 is fixedly connected to the side wall of the backlight plate body 4 through a second plate 12. The side wall of the vertical plate 10 is connected to the chassis 1 through an adjustment mechanism.

[0033] The adjustment mechanism includes a groove 14 opened on the side wall of the vertical plate 10. A slider 13 is slidably connected to the inner wall of the groove 14. The side wall of the slider 13 is fixedly connected to the side wall of the chassis 1. A lead screw 15 is rotatably connected to the inner wall of the groove 14. The side wall of the lead screw 15 is threadedly connected to the side wall of the slider 13.

[0034] Furthermore, when the lead screw 15 rotates clockwise or counterclockwise, the slider 13 will drive the chassis 1 to move up or down, adjusting the height of the camera 2 so that the camera 2 can perform AOI recognition on battery wafers of different thicknesses.

[0035] The upper end of the lead screw 15 penetrates through the side wall of the vertical plate 10 and is fixedly connected to a rotating wheel. A nut 16 is threadedly connected to the side wall of the lead screw 15 above the vertical plate 10. The lower surface of the nut 16 fits against the upper surface of the vertical plate 10 to fix the rotation position of the lead screw 15 and ensure the stability of the position of the chassis 1. When the lead screw 15 needs to rotate, the lower surface of the nut 16 is separated from the upper surface of the vertical plate 10 at this time.

[0036] When performing AOI recognition on the battery wafer, the battery wafer is conveyed on the mesh belt 3. At this time, the camera 2 located in the chassis 1 can take pictures of the battery wafer and then perform AOI recognition, which is the prior art.

[0037] The fragments generated during the conveyance of the battery wafer will fall onto the backlight plate body 4 through the mesh holes on the mesh belt 3. Since the backlight plate body 4 is in a conical hollow shape, the fragments will slide down under the action of gravity into the collection frame 5, enabling the fragments falling on the upper end of the backlight plate body 4 to flow out automatically. It has low use and maintenance costs and does not require frequent maintenance by personnel, avoiding the situation in the prior art where the fragments remaining on the backlight plate are not cleaned in time, which will block the camera's photographing area, causing misrecognition of AOI, resulting in batch downgrading, and also avoiding the situation where it is difficult to clean the fallen fragments due to the small gap between the backlight plate and the mesh belt position.

[0038] And it is also possible to pump air into the intake pipe 7 through an external air pump. Then, the external gas can flow out from a plurality of air spray holes 8 through the intake pipe 7 and the annular pipe 6 to blow off the possible remaining fragments on the inner wall of the backlight plate body 4, increasing the cleanliness of the inner wall of the backlight plate body 4.

[0039] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A structure for automatically sliding and cleaning debris on a front AOI backlight panel, characterized in that: include: A chassis (1), wherein a camera (2) is fixedly connected to an inner wall of the chassis (1); A mesh belt (3), wherein the mesh belt (3) is used to transport battery cells; A backlight panel body (4), wherein the mesh belt (3) located above is located between the chassis (1) and the backlight panel body (4), and the backlight panel body (4) has a conical hollow cross section; A collection frame (5), the collection frame (5) is located below the backlight panel body (4) and is used to collect the debris flowing down from the backlight panel body (4).

2. The automatic debris sliding cleaning structure on the front AOI backlight panel according to claim 1 is characterized in that: An annular tube (6) is fixedly connected to the upper inner wall of the backlight panel body (4), an air inlet pipe (7) is fixedly connected to the inner wall of the annular tube (6), and a plurality of jet holes (8) are provided on the inner wall of the annular tube (6) and are arranged obliquely toward the inner wall of the backlight panel body (4), and the jet holes (8) open downward.

3. The automatic debris sliding cleaning structure on the front AOI backlight panel according to claim 1 is characterized in that: It also includes a base (9), the upper end of the base (9) is fixedly connected to a vertical plate (10), the side wall of the vertical plate (10) is fixedly connected to the lower end of the collection frame (5) through a first plate (11), the side wall of the vertical plate (10) is fixedly connected to the side wall of the backlight plate body (4) through a second plate (12), and the side wall of the vertical plate (10) is connected to the chassis (1) through an adjustment mechanism.

4. The automatic debris sliding cleaning structure on the front AOI backlight panel according to claim 3 is characterized in that: The adjustment mechanism comprises a groove (14) formed on the side wall of the vertical plate (10); a slider (13) is slidably connected to the inner wall of the groove (14); the side wall of the slider (13) is fixedly connected to the side wall of the chassis (1); a lead screw (15) is rotatably connected to the inner wall of the groove (14); and the side wall of the lead screw (15) is threadedly connected to the side wall of the slider (13).

5. The automatic debris sliding cleaning structure on the front AOI backlight panel according to claim 4 is characterized in that: The upper end of the lead screw (15) passes through the side wall of the vertical plate (10) and is fixedly connected to a rotating wheel; the side wall of the lead screw (15) located above the vertical plate (10) is threadedly connected to a nut (16); the lower surface of the nut (16) is in contact with the upper surface of the vertical plate (10).

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