Conveying mechanism and battery piece stringing device

Abstract

The utility model provides a conveying mechanism and a battery piece stringing device. The conveying mechanism comprises a base, a driving roller, a first driven roller, a conveying belt and a supporting plate. The driving roller is arranged at the first end of the base, the first driven roller is arranged at the second end of the base, and the radius of the first driven roller is gradually reduced from the middle position to the two end positions. The conveying belt is wound on the driving roller and the first driven roller and wraps the base, and the driving roller drives the conveying belt to convey when rotating; the supporting plate is arranged on the base, the conveying face of the conveying belt is supported on the supporting plate, the supporting plate is provided with adsorption holes communicated with the air extractor, the conveying belt is provided with air holes, and the air extractor extracts air from the air holes through the adsorption holes, so that the conveying face of the conveying belt generates adsorption force. According to the conveying mechanism, the radius of the middle position of the first driven roller is larger than the radiuses of the two ends of the first driven roller. When the conveying belt deviates, the first driven roller can push the conveying belt to move towards the middle position to reset, and therefore automatic deviation correction of the conveying belt is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cell production equipment, and specifically to a conveying mechanism and a cell stringing device. Background Art

[0002] Existing cell stringing devices usually stack cell sheets and solder ribbons on a conveying mechanism according to a predetermined stringing rule, and then the conveying mechanism transports the stacked cell sheets and solder ribbons to a stringing station for stringing to form a cell string.

[0003] The conveying mechanism typically uses a conveyor belt, which is wound around a driving roller and a driven roller. The driving roller rotates, driving the conveyor belt. In existing conveying mechanisms, both the driving and driven rollers are cylindrical structures with a constant radius. This can lead to belt deviation during transport, causing the cells and ribbons to shift position, thus affecting stringing accuracy. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a conveying mechanism, which adopts the following technical solutions:

[0005] A conveying mechanism includes a base, a driving roller, a first driven roller, a conveyor belt and a support plate, wherein:

[0006] The active roller is arranged at the first end of the base, the first driven roller is arranged at the second end of the base, and the radius of the first driven roller gradually decreases from the middle position toward the two end positions;

[0007] The conveyor belt is wound around the driving roller and the first driven roller and covers the base. When the driving roller rotates, the conveyor belt is driven to transport;

[0008] The support plate is arranged on the base, and the conveying surface of the conveyor belt is supported on the support plate. The support plate is provided with adsorption holes connected to the exhaust device, and the conveyor belt is provided with air holes. The exhaust device exhausts air from the air holes through the adsorption holes, so that the conveying surface of the conveyor belt generates adsorption force.

[0009] The conveyor mechanism provided herein has a first driven roller that is a drum-shaped roller with a larger radius at its center than at its ends. During conveying, if the conveyor belt deviates, the first driven roller can push the conveyor belt toward its center position to reset, thereby automatically correcting the deviation.

[0010] In some embodiments, the conveying mechanism also includes a second driven roller, which is arranged at the second end of the base and located above the first driven roller; the conveyor belt passes around the first driven roller, the second driven roller and the active roller in sequence along the first clockwise direction.

[0011] Two driven rollers, arranged one above the other, are positioned at the second end. These rollers work together to support and guide the conveyor belt from the second end of the conveyor mechanism, allowing each driven roller to have a smaller diameter and reduce the space they occupy. This allows other components, such as a ribbon tail clamp, to be positioned near the second end of the conveyor mechanism when it serves as the input.

[0012] In some embodiments, the conveying mechanism also includes a third driven roller and a transition roller, wherein: the third driven roller is arranged at the second end of the base, the third driven roller is located between the first driven roller and the second driven roller in the height direction, the transition roller is located between the first driven roller and the third driven roller in the height direction, and the transition roller is located between the first driven roller and the active roller in the horizontal direction; the radius of the third driven roller gradually decreases from the middle position toward the two end positions; after the conveyor belt passes around the first driven roller along the first clockwise direction, it passes around the transition roller along the second clockwise direction, and then passes around the third driven roller and the second driven roller in sequence along the first clockwise direction.

[0013] By installing a third driven roller and a transition roller, and by adjusting their mounting positions, the conveyor belt passes around the first driven roller, then turns around the transition roller, and then returns around the third and second driven rollers. This improves the support stability of the conveyor belt, ensuring it remains taut and preventing it from falling. Furthermore, by configuring the third driven roller as a drum-shaped roller, if the conveyor belt deviates during conveyance, the third driven roller cooperates with the first driven roller to push the conveyor belt back to its center position, thereby enhancing the automatic deviation correction effect of the conveyor belt.

[0014] In some embodiments, a difference between a radius at a middle position and a radius at both end positions of the first driven roller and / or the third driven roller is less than 2 mm.

[0015] Since the conveyor belt passes around the first driven roller and the third driven roller, it needs to cover part of the outer circumference of the first driven roller and the third driven roller. The difference between the radius at the middle position and the radius at the two end positions of the first driven roller and the third driven roller is set to be less than 2 mm, which can make the conveyor belt fully contact with the first driven roller and the third driven roller, thereby increasing the friction at the contact point and improving the deviation correction effect.

[0016] In some embodiments, the transition roller is provided with a plurality of avoidance grooves at intervals along the length direction of the transition roller.

[0017] By providing an avoidance groove on the transition roller, the contact area between the transition roller and the conveyor belt can be reduced, the accumulation of dirt on the conveyor belt on the transition roller can be reduced, and the risk of the air vents on the conveyor belt being blocked by dirt on the transition roller can be reduced.

[0018] In some embodiments, the conveying mechanism further includes an angle adjustment mechanism provided on the base, the first driven roller is mounted on the angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the angle of the first driven roller in the horizontal direction.

[0019] The horizontal angle of the first driven roller can be adjusted to ensure that the conveyor belt is in full contact with the first driven roller during the conveying process, thereby ultimately improving the conveying stability of the conveyor belt.

[0020] In some embodiments, the angle adjustment mechanism includes a first connecting plate, a second connecting plate, an adjusting rod, a roller shaft and a spring, wherein: the first connecting plate and the second connecting plate are installed on opposite sides of the base; the first driven roller is rotatably installed on the roller shaft, and the first end of the roller shaft is installed on the first connecting plate; the second connecting plate is provided with a waist hole extending in the horizontal direction, and the second end of the roller shaft can be slidably inserted in the waist hole; the spring is provided in the waist hole, and the two ends of the spring respectively abut against the roller shaft and the inner wall of one side of the waist hole, and the spring can produce horizontal deformation after being compressed; the adjusting rod is adjustably installed on the second connecting plate, and the adjusting rod is used to push the second end of the roller shaft from the side away from the spring.

[0021] A simple angle adjustment mechanism is provided. By adjusting the position of the adjusting rod, the adjusting rod pushes the second end of the roller shaft with an appropriate force. The spring and the adjusting rod push the second end of the roller shaft in opposite directions from both sides, so that the second end of the adjusting rod slides along the waist hole to the target position, thereby completing the horizontal angle adjustment of the first driven roller.

[0022] In some embodiments, the conveying mechanism further includes a telescopic driving portion disposed on the base, the first driven roller is mounted at a driving end of the telescopic driving portion, and the telescopic driving portion is used to drive the first driven roller to translate in the conveying direction to tension the conveyor belt.

[0023] By providing a telescopic drive part, the first driven roller can translate in the conveying direction of the conveyor belt to achieve tensioning of the conveyor belt, thereby improving the conveying stability of the conveyor belt and preventing the conveyor belt from slipping during the conveying process.

[0024] In some embodiments, the conveying mechanism also includes a tensioning roller, which is located between the first driven roller and the active roller in the horizontal direction, and the installation height of the tensioning roller relative to the base is adjustable; the tensioning roller is located on the inner side of the conveyor belt, and is used to press the conveyor belt downward from the top, or the tensioning roller is located below the conveyor belt, and is used to press the conveyor belt from the bottom upward to tension the conveyor belt.

[0025] By setting up a tensioning roller, the conveyor belt is tensioned, the conveying stability of the conveyor belt is improved, and the conveyor belt is prevented from slipping during the conveying process.

[0026] In some embodiments, the radius of the tensioning roller gradually decreases from the middle position toward the two end positions; the difference between the radius at the middle position and the radius at the two end positions of the tensioning roller is less than 20 mm.

[0027] The conveyor belt does not need to bypass the tensioning roller, it only contacts the bottom or top of the tensioning roller. Setting the difference between the radius at the middle position of the tensioning roller and the radius at both ends to less than 20mm can reduce the contact area between the conveyor belt and the tensioning roller and improve the deviation correction effect.

[0028] The present application also provides a battery cell stringing device, which includes the conveying mechanism, battery cell loading mechanism, solder strip loading mechanism and stringing mechanism described in any one of the above items, wherein: a laying station and a stringing station are provided on the conveying path of the conveying mechanism; the battery cell loading mechanism and the solder strip loading mechanism are configured to stack the battery cells and solder strips at the laying station according to a predetermined stringing rule; the conveying mechanism conveys the stacked battery cells and solder strips to the stringing station; the stringing mechanism is provided at the stringing station, and the stringing mechanism is used to connect the solder strips to the corresponding battery cells.

[0029] Through the cooperation of the conveying mechanism, the battery cell feeding mechanism, the solder strip feeding mechanism and the serial connection mechanism, the battery cell stringing device of the present application realizes the automatic stringing of battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of the conveying mechanism in the embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the winding of the conveyor belt in the embodiment of the present application;

[0032] Figure 3 This is a schematic structural diagram of the first driven roller in an embodiment of the present application;

[0033] Figure 4 Schematic diagram of the structure of the tensioning roller in the embodiment of the present application;

[0034] Figure 5 Schematic diagram of the partial structure of the conveying mechanism in the embodiment of the present application;

[0035] Figure 6 Schematic diagram of the structure of the transition roller in the embodiment of the present application.

[0036] Figures 1 to 6 Included are:

[0037] Base 1, active roller 2, first driven roller 3, conveyor belt 4, support plate 5, second driven roller 6, third driven roller 7, transition roller 8, avoidance groove 81, angle adjustment mechanism 9, first connecting plate 91, second connecting plate 92, adjustment rod 93, roller shaft 94, spring 95, telescopic drive unit 10, tensioning roller 11. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0039] like Figures 1 to 2 As shown, the conveying mechanism in the embodiment of the present application includes a base 1, a driving roller 2, a first driven roller 3, a conveyor belt 4 and a support plate 5, wherein:

[0040] The active roller 2 is arranged at the first end of the base 1 , and the first driven roller 3 is arranged at the second end of the base 1 . The radius of the first driven roller 1 gradually decreases from the middle position toward the two end positions.

[0041] The conveyor belt 4 is wound around the active roller 2 and the first driven roller 3 and covers the base 1. When the active roller 2 rotates, the conveyor belt 4 is driven for transportation.

[0042] The support plate 5 is arranged on the base 1, and the conveying surface of the conveyor belt 4 is supported on the support plate 5. The support plate 5 is provided with adsorption holes connected to the exhaust device, and the conveyor belt 5 is provided with air holes. The exhaust device exhausts air from the air holes through the adsorption holes, so that the conveying surface of the conveyor belt 4 generates adsorption force.

[0043] In the conveying mechanism implemented in this application, the first driven roller 3 is a drum-shaped roller, with a larger radius at its center than at its ends. This allows the first driven roller 3 to adaptively push the conveyor belt 4 toward its center position during conveying if it deviates, thereby automatically correcting the deviation of the conveyor belt 4. Furthermore, because the conveying surface of the conveyor belt 4 has an adsorption force, the conveyor belt can absorb and position workpieces (such as battery cells) during conveyance, preventing the workpieces from sliding or shifting during transport.

[0044] Optionally, the conveying mechanism in the embodiment of the present application further includes a second driven roller 6, which is disposed at the second end of the base 1 and is located above the first driven roller 3. The conveyor belt passes through the first driven roller 3, the second driven roller 6, and the driving roller 2 in sequence along a first clockwise direction (e.g., clockwise direction).

[0045] By providing two driven rollers arranged one above the other at the second end of the base 1, these two driven rollers cooperate to support and guide the conveyor belt 4 from the second end of the conveyor mechanism, allowing the diameter of each driven roller to be reduced, thereby reducing the space occupied by the driven rollers. This allows ample space to accommodate other components near the second end of the conveyor mechanism, such as a ribbon tail clamp used to guide the ribbon to the conveyor belt 4.

[0046] Continue to refer Figures 1 to 2As shown, optionally, the conveying mechanism in the embodiment of the present application further includes a third driven roller 7 and a transition roller 8, wherein: the third driven roller 7 is arranged at the second end of the base 1, the third driven roller 7 is located between the first driven roller 3 and the second driven roller 6 in the height direction, the transition roller 8 is located between the first driven roller 3 and the third driven roller 7 in the height direction, and the transition roller 8 is located between the first driven roller 3 and the third driven roller 7 in the horizontal direction. The radius of the third driven roller 7 gradually decreases from the middle position toward the two end positions. After the conveyor belt 4 passes around the first driven roller 3 in the first clockwise direction (for example, clockwise), it passes around the transition roller 8 in the second clockwise direction (for example, counterclockwise), and then passes around the third driven roller 7 and the second driven roller 6 in sequence in the first clockwise direction.

[0047] By providing the third driven roller 7 and transition roller 8 and adjusting their mounting positions, the conveyor belt 4 passes around the first driven roller 3, then turns around the transition roller 8, and then returns around the third driven roller 7 and second driven roller 6. This ensures a tight installation of the conveyor belt 4, preventing it from falling off. Furthermore, by configuring the third driven roller 7 as a drum roller, if the conveyor belt 4 deviates during conveyance, the third driven roller 7 cooperates with the first driven roller 3 to push the conveyor belt 4 back to its center position, thereby enhancing the automatic deviation correction effect of the conveyor belt 4.

[0048] Since the conveyor belt 4 passes around the first and third driven rollers 3 and 7, the conveyor belt 4 needs to cover part of the outer circumference of the first and third driven rollers 7. In order to ensure that the conveyor belt is in full contact with the first and third driven rollers 3 and 7, increase the friction between the conveyor belt and the first and third driven rollers 3 and 7, and improve the deviation correction effect, the difference L1 between the radius at the middle position and the radius at the end positions of at least one of the first and third driven rollers 7 is optionally set to be less than 2 mm. If L1 is greater than 2 mm, the conveyor belt will not fit closely with the ends of the first and third driven rollers 3 and 7, affecting the deviation correction effect. Optionally, the value of L1 is 0.2mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm or 1.9mm. The value of L1 decreases as the wrap angle of the conveyor belt to the first driven roller 3 or the third driven roller 7 increases to ensure that the conveyor belt can fully contact the first driven roller 3 and the third driven roller 7.

[0049] like Figure 6 As shown, the transition roller 8 may optionally be provided with a plurality of avoidance grooves 81 spaced apart along the length of the transition roller 8. By providing the avoidance grooves 81 on the transition roller 8, the contact area between the transition roller 8 and the conveyor belt 4 can be reduced, thereby reducing the accumulation of dirt on the conveyor belt 4 on the transition roller 8, and in turn reducing the risk of the air vents on the conveyor belt 4 being clogged by dirt on the transition roller 8.

[0050] like Figure 5 As shown, optionally, the conveying mechanism in the embodiment of the present application also includes an angle adjustment mechanism 9 arranged on the base 1, and the first driven roller 3 is installed on the angle adjustment mechanism 9. The angle adjustment mechanism 9 is used to adjust the angle of the first driven roller 9 in the horizontal direction, thereby ensuring that the conveyor belt maintains full contact with the first driven roller 3 during the conveying process, and ultimately improves the conveying stability of the conveyor belt 4.

[0051] Optionally, the angle adjustment mechanism 9 includes a first connecting plate 91, a second connecting plate 92, an adjustment rod 93, a roller shaft 94, and a spring 95, wherein the first connecting plate 91 and the second connecting plate 92 are mounted on opposite sides of the base 1. The first driven roller 3 is rotatably mounted on the roller shaft 94, the first end of the roller shaft 94 is mounted on the first connecting plate 91, and the second connecting plate 92 is provided with a waist hole extending in the horizontal direction, and the second end of the roller shaft 94 is slidably inserted into the waist hole. The spring 95 is disposed in the waist hole, and the two ends of the spring 95 respectively abut against the roller shaft 94 and the inner wall of one side of the waist hole. When the spring 95 is compressed, it can produce horizontal deformation. The adjustment rod 93 is adjustably mounted on the second connecting plate 92, and the adjustment rod 93 is used to push the second end of the roller shaft 94 from the side away from the spring 95.

[0052] Optionally, one end of an adjustment rod 93 is screwed onto the second connecting plate. By turning the adjustment rod 93, the position of the adjustment rod 93 can be adjusted, causing the other end of the adjustment rod 93 to push against the second end of the roller shaft 94 with an appropriate force. Simultaneously, a spring 95 pushes against the second end of the roller shaft 94 from the other side. The second end of the adjustment rod 94, under force, slides along the waist hole to the target position, thereby completing the horizontal angle adjustment of the first driven roller 3.

[0053] like Figure 5 As shown, the conveying mechanism in the embodiment of the present application optionally further includes a telescopic drive unit 10 disposed on the base 1. The first driven roller 3 is mounted at the driving end of the telescopic drive unit 10. The telescopic drive unit 10 is configured to drive the first driven roller 3 to translate in the conveying direction to tension the conveyor belt, thereby improving the conveying smoothness of the conveyor belt 4 and preventing the conveyor belt 4 from slipping during conveying. The telescopic drive unit 10 may be, for example, a cylinder.

[0054] like Figures 1 to 2As shown, the conveying mechanism in the embodiment of the present application optionally further includes a tensioning roller 11, which is horizontally located between the first driven roller 3 and the active roller 2. The installation height of the tensioning roller 11 relative to the base 1 is adjustable. The tensioning roller 11 is located on the inner side of the conveyor belt 4 and is used to press the conveyor belt 4 downward from above to tension the conveyor belt 4. Of course, the tensioning roller 11 can also be installed below the conveyor belt 4 via a separate mounting bracket, and the tensioning roller 11 is used to press the conveyor belt 4 upward from below to tension the conveyor belt 4.

[0055] By tensioning the conveyor belt 4 through the tensioning roller 11 , the conveying smoothness of the conveyor belt 4 can be improved and the conveyor belt can be prevented from slipping during the conveying process.

[0056] Since the conveyor belt 4 does not need to go around the tension roller 11, it only contacts the bottom or top of the tension roller 11. In order to reduce the contact area between the conveyor belt 4 and the tension roller 11 and improve the deviation correction effect, it is optional, such as Figure 4 As shown, the difference L2 between the radius at the middle position and the radius at the two end positions of the tensioning roller 11 is set to be less than 20 mm. For example, the value of L2 can be 1 mm, 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm or 19 mm. The larger the value of L2, the smaller the contact area with the conveyor belt 4, and the better the correction effect.

[0057] The present application also provides a battery cell stringing device in an embodiment, which includes a conveying mechanism, a battery cell loading mechanism, a solder ribbon loading mechanism, and a stringing mechanism provided in any of the above embodiments, wherein: a laying station and a stringing station are provided on the conveying path of the conveying mechanism; the battery cell loading mechanism and the solder ribbon loading mechanism are configured to stack the battery cells and solder ribbons at the laying station according to a predetermined stringing rule; the conveying mechanism transports the stacked battery cells and solder ribbons to the stringing station; and a stringing mechanism is provided at the stringing station for connecting the solder ribbons to the corresponding battery cells. Through the cooperation of the conveying mechanism, the battery cell loading mechanism, the solder ribbon loading mechanism, and the stringing mechanism, the battery cell stringing device of the present application realizes automatic stringing of battery cells.

[0058] The above description of the present application is sufficiently detailed and has certain particularities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and that all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, not by the above description in the embodiments. Furthermore, the embodiments mentioned in the present application are not limited to being implemented individually, and some embodiments can also be implemented in combination.

Claims

1. A conveying mechanism, characterized in that: The conveying mechanism includes a base, a driving roller, a first driven roller, a conveyor belt and a support plate, wherein: The active roller is arranged at the first end of the base, and the first driven roller is arranged at the second end of the base, and the radius of the first driven roller gradually decreases from the middle position toward the two end positions; The conveyor belt is wound around the active roller and the first driven roller and covers the base, and the active roller drives the conveyor belt to transport when rotating; The support plate is arranged on the base, the conveying surface of the conveyor belt is supported on the support plate, the support plate is provided with an adsorption hole connected to the air extraction device, and the conveyor belt is provided with an air vent. The air extraction device extracts air from the air vent through the adsorption hole, so that the conveying surface of the conveyor belt generates adsorption force.

2. The conveying mechanism according to claim 1, wherein: The conveying mechanism also includes a second driven roller, which is arranged at the second end of the base and is located above the first driven roller; the conveyor belt passes around the first driven roller, the second driven roller and the active roller in sequence along the first clockwise direction.

3. The conveying mechanism according to claim 2, wherein: The conveying mechanism further includes a third driven roller and a transition roller, wherein: The third driven roller is provided at the second end of the base, the third driven roller is located between the first driven roller and the second driven roller in the height direction, the transition roller is located between the first driven roller and the third driven roller in the height direction, and the transition roller is located between the first driven roller and the active roller in the horizontal direction; The radius of the third driven roller gradually decreases from the middle position toward the two end positions; After the conveyor belt passes around the first driven roller in a first clockwise direction, it passes around the transition roller in a second clockwise direction, and then passes around the third driven roller and the second driven roller in sequence in the first clockwise direction.

4. The conveying mechanism according to claim 3, wherein: The difference between the radius at the middle position and the radius at both end positions of the first driven roller and / or the third driven roller is less than 2 mm.

5. The conveying mechanism according to claim 3, wherein: The transition roller is provided with a plurality of avoidance grooves at intervals along the length direction of the transition roller.

6. The conveying mechanism according to claim 1, wherein: The conveying mechanism further includes an angle adjustment mechanism provided on the base, the first driven roller is mounted on the angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the angle of the first driven roller in the horizontal direction.

7. The conveying mechanism according to claim 6, wherein: The angle adjustment mechanism includes a first connecting plate, a second connecting plate, an adjustment rod, a roller shaft and a spring, wherein: The first connecting plate and the second connecting plate are mounted on opposite sides of the base; The first driven roller is rotatably mounted on the roller shaft, and the first end of the roller shaft is mounted on the first connecting plate; The second connecting plate is provided with a waist hole extending in the horizontal direction, and the second end of the roller shaft is slidably inserted into the waist hole; The spring is arranged in the waist hole, and the two ends of the spring are respectively against the roller shaft and the inner wall of one side of the waist hole. When the spring is compressed, it can produce horizontal deformation; The adjusting rod is adjustably mounted on the second connecting plate, and the adjusting rod is used to push the second end of the roller shaft from a side away from the spring.

8. The conveying mechanism according to claim 1, wherein: The conveying mechanism further includes a telescopic driving portion provided on the base, the first driven roller is mounted on a driving end of the telescopic driving portion, and the telescopic driving portion is used to drive the first driven roller to translate in a conveying direction to tension the conveyor belt.

9. The conveying mechanism according to claim 1, wherein: The conveying mechanism further includes a tensioning roller, the tensioning roller being located between the first driven roller and the active roller in the horizontal direction, and the installation height of the tensioning roller relative to the base being adjustable; The tensioning roller is located on the inner side of the conveyor belt and is used to press the conveyor belt downward from the top, or the tensioning roller is located below the conveyor belt and is used to press the conveyor belt upward from the bottom to tension the conveyor belt.

10. The conveying mechanism according to claim 9, wherein: The radius of the tensioning roller gradually decreases from the middle position toward the two end positions; The difference between the radius at the middle position and the radius at the two end positions of the tensioning roller is less than 20 mm.

11. A battery cell stringing device, characterized in that: The cell stringing device comprises the conveying mechanism, cell loading mechanism, ribbon loading mechanism and stringing mechanism according to any one of claims 1 to 10, wherein: The conveying path of the conveying mechanism is provided with a laying station and a stringing station; The cell loading mechanism and the solder ribbon loading mechanism are configured to stack the cell and solder ribbon at the placement station according to a predetermined stringing rule; The conveying mechanism conveys the stacked battery cells and welding ribbons to the stringing station; The serial connection mechanism is arranged at the stringing station, and is used to connect the welding ribbon to the corresponding battery cell.

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