Battery piece appearance defect detection equipment

Abstract

Battery piece appearance defect detection equipment comprises a protective cover module, a conveying module arranged in the protective cover module and used for conveying battery pieces, a front face shooting module arranged at the upper end of the protective cover module and used for shooting the front faces of the battery pieces, and a back face shooting module arranged at the lower end of the protective cover module and used for shooting the back faces of the battery pieces. According to the utility model, the adsorption device is arranged between the two groups of conveying belt mechanisms in the prior art, and through the arrangement of the adsorption device, when a battery piece reaches the adsorption module, the battery piece can be adsorbed by the adsorption module and passes through the gap between the two groups of conveying belt mechanisms, so that the gap between the two groups of conveying belt mechanisms can be large enough; therefore, the back shooting module can completely shoot the back of the battery piece.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a battery sheet appearance defect detection device. Background Art

[0002] The Chinese utility model patent with authorization announcement number CN 206441751 U is a cell integrated detection module based on line scanning, including a fixing plate, a film transmission and positioning module, a shield module, a color difference line scanning module, a front line scanning module, a back line scanning module, a light source module, and a preferred implementation mode of the film transmission and positioning module is to drive the belt through a stepper motor and realize the precise positioning of the silicon wafer through stepping transmission.

[0003] However, the battery cells need to pass between two sets of conveyor belt mechanisms, and the distance between the two sets of conveyor belt mechanisms is very small. If the distance is too large, the battery cells will fall from the gap between the two sets of conveyor belt mechanisms, which will result in the back camera module only being able to capture a very small part of the battery cell at a time. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a battery cell appearance defect detection device to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides a battery cell appearance defect detection device, comprising a shield module, a conveying module arranged in the shield module for conveying the battery cell, a front shooting module arranged at the upper end of the shield module for photographing the front of the battery cell, and a back shooting module arranged at the lower end of the shield module for photographing the back of the battery cell, wherein the conveying module comprises two sets of conveyor belt mechanisms arranged in the shield module, and the detection device also comprises

[0006] A battery cell adsorption module is arranged between and above two groups of conveyor belt mechanisms, the battery cell adsorption module includes a conveyor belt that is rolled above the conveyor belt mechanism, the conveyor belt is penetrated by a adsorption port, and the shield module is fixed with a negative pressure device, the negative pressure device adsorbs the battery cells from the surface of one group of conveyor belt mechanisms to the surface of the other group of conveyor belt mechanisms through the adsorption port when the conveyor belt rolls.

[0007] Preferably, the distance between the two sets of conveyor belt mechanisms is greater than the width of the battery cell.

[0008] Preferably, the shield module is equipped with a battery cell positioning module, and the battery cell positioning module is located between two sets of conveyor belt mechanisms. The battery cell positioning module includes a positioning cylinder and a positioning plate, the lower end of the positioning cylinder is fixed to the shield module, and the positioning plate is fixed to the upper end of the positioning cylinder.

[0009] Preferably, the two groups of conveyor belt mechanisms are used for feeding and discharging respectively, and the conveyor belt mechanism used for feeding is arranged obliquely and a partition is fixed on the surface of the conveyor belt.

[0010] Preferably, the conveyor belt mechanism used for feeding is equipped with beam switches on both sides of one end close to the battery cell positioning module.

[0011] Preferably, the negative pressure device includes a shell fixedly connected to the shield module, the inner surface of the conveyor belt is in close contact with the shell, the shell is penetrated by a through hole, the shield module is fixed with a negative pressure pump, and the exhaust port of the negative pressure pump is connected to the inside of the shell.

[0012] Preferably, two position calibration cylinders are installed on both sides of the conveyor belt mechanism used for feeding.

[0013] Beneficial effect: The utility model arranges an adsorption device between the two groups of conveyor belt mechanisms in the prior art. Through the arrangement of the adsorption device, when the battery cell reaches the adsorption module, the adsorption module can be used to adsorb the battery cell and pass through the gap between the two groups of conveyor belt mechanisms, so that the gap between the two groups of conveyor belt mechanisms can be large enough to enable the back-side shooting module to completely shoot the back side of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Figure 2 It is a partial enlarged structural schematic diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the conveyor belt of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the conveyor belt mechanism of the utility model from a top view.

[0019] In the figure: 1. Shield module; 2. Battery cell; 3. Conveying module; 31. Conveyor belt mechanism; 32. Partition; 33. Opposite-shooting switch; 4. Front shooting module; 41. Back shooting module; 51. Conveyor belt; 52. Adsorption port; 6. Battery cell positioning module; 61. Positioning cylinder; 62. Positioning plate; 7. Negative pressure device; 71. Housing; 72. Through hole; 73. Negative pressure pump; 8. Position calibration cylinder. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4The specific implementation modes of the present utility model are further described in detail.

[0021] Depend on Figure 1-4 The utility model provides a battery cell appearance defect detection device, comprising a shield module 1, a conveying module 3 arranged in the shield module 1 for conveying the battery cell 2, a front shooting module 4 arranged at the upper end of the shield module 1 for photographing the front of the battery cell 2, and a back shooting module 41 arranged at the lower end of the shield module 1 for photographing the back of the battery cell 2. The conveying module 3 includes two sets of conveyor belt mechanisms 31 arranged in the shield module 1. The above structure is an existing common battery cell appearance defect detection device, so it is not described in detail in this embodiment.

[0022] The key improvement of this embodiment is that the detection device also includes

[0023] The battery cell adsorption module 5 is arranged between the two groups of conveyor belt mechanisms 31 and located above the two groups of conveyor belt mechanisms 31. The battery cell adsorption module 5 includes a conveyor belt 51 that is rolled and arranged above the conveyor belt mechanism 31. The conveyor belt 51 is driven by a servo motor. The conveyor belt 51 is penetrated by a suction port 52. The shield module 1 is fixed with a negative pressure device 7. When the conveyor belt 51 rolls, the negative pressure device 7 adsorbs the battery cell 2 from the surface of one group of conveyor belt mechanisms 31 to the surface of the other group of conveyor belt mechanisms 31 through the suction port 52.

[0024] The distance between the two sets of conveyor belt mechanisms 31 is greater than the width of the battery cell 2 .

[0025] In the prior art, the battery cell 2 needs to pass between two groups of conveyor belt mechanisms 31, and the distance between the two groups of conveyor belt mechanisms 31 is very small. If the distance is too large, the battery cell 2 will fall through the gap between the two groups of conveyor belt mechanisms 31, which will result in the back-side camera module 41 being able to only capture a very small part of the battery cell 2 at a time. In this embodiment, through the setting of the adsorption module 5, when the battery cell 2 reaches the adsorption module 5, the adsorption module 5 can be used to adsorb the battery cell 2 through the gap between the two groups of conveyor belt mechanisms 31, so that the gap between the two groups of conveyor belt mechanisms 31 can be large enough to allow the back-side camera module 41 to completely capture the back side of the battery cell 2. Now let us explain in detail the specific structure and working principle of this embodiment.

[0026] The shield module 1 is equipped with a cell positioning module 6, which is located between the two conveyor belt mechanisms 31. The cell positioning module 6 includes a positioning cylinder 61 and a positioning plate 62. The lower end of the positioning cylinder 61 is fixed to the shield module 1, and the positioning plate 62 is fixed to the upper end of the positioning cylinder 61. Please refer to Figure 1 and Figure 2Through the setting of the battery cell positioning module 6, after the battery cell 2 is adsorbed onto the surface of the conveyor belt 51, the positioning plate 62 extends upward to block the battery cell 2. When the conveyor belt 51 rolls, the position of the battery cell 2 remains unchanged. In this way, the battery cell 2 can be positioned. After the positioning plate 62 is lowered, the battery cell 2 continues to move to the upper position of the back-side shooting module 41, and is completely photographed by the back-side shooting module 41.

[0027] The two sets of conveyor belt mechanisms 31 are used for feeding and discharging respectively. It can be understood that Figure 1 As shown in the figure, the feeding is on the right side, and the discharging is on the left side. The conveyor belt mechanism 31 for feeding is inclined and a partition 32 is fixed on the surface of the conveyor belt. In this way, when placing the battery cell 2, the battery cell 2 will slide downward along the inclined surface, and then move to the left side under the push of the partition 32, so that the position of the battery cell 2 can be better controlled.

[0028] The conveyor belt mechanism 31 used for feeding is equipped with a beam switch 33 on both sides of one end close to the battery cell positioning module 6. The beam switch 33 is signal-connected with the negative pressure device 7 and the battery cell positioning module 6. When the battery cell 2 reaches the position of the beam switch 33, the beam switch 33 sends a signal to the negative pressure device 7 and the battery cell positioning module 6 to make the negative pressure device 7 and the battery cell positioning module 6 work.

[0029] In some embodiments, the negative pressure device 7 includes a shell 71 fixedly connected to the shield module 1, the inner surface of the conveyor belt 51 is close to the shell 71, and the shell 71 is penetrated by a through hole 72. The shield module 1 is fixed with a negative pressure pump 73, and the exhaust port of the negative pressure pump 73 is connected to the interior of the shell 71. When working, the shell 71 generates negative pressure through the negative pressure pump 73, thereby generating suction at the position of the adsorption port 52, sucking the battery cell 2 onto the conveyor belt 51, and as the conveyor belt 51 rolls, the battery cell 2 is moved from the right side to the left side. When the battery cell 2 reaches the left position, the negative pressure pump 73 stops working, and then waits until the next battery cell 2 reaches the position of the shooting switch 33, and the negative pressure pump 73 starts again. Regarding the stopping of the negative pressure pump 73, it is only necessary to set the working time of the negative pressure pump 73 through the PLC.

[0030] Two position calibration cylinders 8 are installed on both sides of the conveyor belt mechanism 31 for feeding. When the battery cell 2 reaches the position of the shooting switch 33, the position calibration cylinders 8 extend to push the battery cell 2 to the center position.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The utility model arranges an adsorption device 5 between the two groups of conveyor belt mechanisms 31 in the prior art. Through the arrangement of the adsorption device 5, when the battery cell 2 reaches the adsorption module 5, the adsorption module 5 can be used to adsorb the battery cell 2 and pass through the gap between the two groups of conveyor belt mechanisms 31, so that the gap between the two groups of conveyor belt mechanisms 31 can be large enough to allow the back-side shooting module 41 to completely shoot the back side of the battery cell 2.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery cell appearance defect detection device, comprising a shield module (1), a conveying module (3) arranged in the shield module (1) for conveying a battery cell (2), a front shooting module (4) arranged at the upper end of the shield module (1) for photographing the front of the battery cell (2), and a back shooting module (41) arranged at the lower end of the shield module (1) for photographing the back of the battery cell (2), wherein the conveying module (3) comprises two sets of conveyor belt mechanisms (31) arranged in the shield module (1), It is characterized in that The detection device also includes A battery cell adsorption module (5) is arranged between two groups of conveyor belt mechanisms (31) and located above the two groups of conveyor belt mechanisms (31), the battery cell adsorption module (5) comprising a conveyor belt (51) arranged in a rolling manner above the conveyor belt mechanism (31), the conveyor belt (51) being provided with an adsorption port (52) running through it, the shield module (1) being fixed with a negative pressure device (7), the negative pressure device (7) adsorbing the battery cell (2) from the surface of one group of conveyor belt mechanisms (31) to the surface of the other group of conveyor belt mechanisms (31) through the adsorption port (52) when the conveyor belt (51) is rolling.

2. A battery cell appearance defect detection device according to claim 1, It is characterized in that The distance between the two sets of conveyor belt mechanisms (31) is greater than the width of the battery sheet (2).

3. The battery cell appearance defect detection device according to claim 1, It is characterized in that The shield module (1) is equipped with a cell positioning module (6), the cell positioning module (6) is located between two groups of conveyor belt mechanisms (31), the cell positioning module (6) comprises a positioning cylinder (61) and a positioning plate (62), the lower end of the positioning cylinder (61) is fixed to the shield module (1), and the positioning plate (62) is fixed to the upper end of the positioning cylinder (61).

4. A battery cell appearance defect detection device according to claim 3, It is characterized in that The two groups of conveyor belt mechanisms (31) are used for feeding and discharging respectively. The conveyor belt mechanism (31) used for feeding is arranged obliquely and a partition plate (32) is fixed on the surface of the conveyor belt.

5. A battery cell appearance defect detection device according to claim 4, It is characterized in that A conveyor belt mechanism (31) for feeding is provided with a beam switch (33) on both sides of one end close to the battery cell positioning module (6).

6. The battery cell appearance defect detection device according to claim 1, It is characterized in that The negative pressure device (7) comprises a shell (71) fixedly connected to the shield module (1); the inner surface of the conveyor belt (51) is in close contact with the shell (71); a through hole (72) is provided through the shell (71); a negative pressure pump (73) is fixed to the shield module (1); and an air outlet of the negative pressure pump (73) is connected to the interior of the shell (71).

7. The battery cell appearance defect detection device according to claim 5, It is characterized in that Two position calibration cylinders (8) are installed on both sides of the conveyor belt mechanism (31) used for feeding.

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