Battery string manufacturing device and string welding machine

By using a single conveyor belt and accurate string -cutting knife control in the battery string manufacturing device, the problem of the battery string in traditional devices is easy to congestion, and the operating stability and good product rate are improved.

CN222396013UActive Publication Date: 2025-01-24SUZHOU MAXWELL TECH CO LTD
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Patent Information

Application Number
CN202421051123.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-15
Publication Date
2025-01-24
Estimated Expiration
2034-05-15

AI Technical Summary

Technical Problem

Due to the speed difference between different conveyor belts in traditional battery string manufacturing devices, the battery string is prone to congestion on the serial cutting mechanism, resulting in low operating stability.

Method used

A battery string manufacturing device is designed, which uses a single conveyor belt to pass through the string cutting mechanism, uses the driving assembly to control the movement of the string cutter to cut the battery strings, and maintains the tension of the conveyor belt through the tension roller assembly and the adjustment assembly. Appropriate distance.

Benefits of technology

Through the design of a single conveyor belt and precise string cutter control, the string blocking phenomenon in the traditional method is avoided, and the operation stability and yield rate of the battery string manufacturing device are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery string manufacturing device and discloses a string welding machine with the battery string manufacturing device, the battery string manufacturing device comprises a first support, a first conveying roller, a second conveying roller, a first transition roller, a second transition roller, a first pressing roller and a first conveying belt, and the first pressing roller is arranged between the first transition roller and the second transition roller. The first conveying belt is used for conveying battery strings, part of the first conveying belt is wound around the first transition roller, the first pressing roller and the second transition roller to form a string cutting groove, the string cutting mechanism is arranged on the first support and comprises a string cutter and a first driving assembly, and the first driving assembly is used for driving the string cutter to enter or exit from the string cutting groove. The speed of the battery string before series cutting is consistent with the speed of the battery string after series cutting, so that the traditional mode of conveying the battery string by adopting two independent conveying belts can be abandoned, the phenomenon of string blockage can be avoided, and the operation stability of the battery string manufacturing device can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of solar cells, in particular to a battery string manufacturing device and a string welding machine. Background Art

[0002] Traditional battery strings are generally manufactured into battery components through a series conveying mechanism, a string cutting mechanism and a sub-string conveying mechanism. The series conveying mechanism, the string cutting mechanism and the sub-string conveying mechanism respectively use independent conveyor belts to convey the battery strings. Due to the speed difference between different conveyor belts, when the conveying speed of the conveyor belt of the string cutting mechanism is higher than that of the series conveying mechanism, the battery strings are easily jammed on the conveyor belt of the string cutting mechanism, resulting in low operating stability of the battery string manufacturing device. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery string manufacturing device, which can improve the operating stability of the battery string manufacturing device.

[0004] The utility model also provides a string welding machine having the battery string manufacturing device.

[0005] According to the first aspect of the present utility model, a battery string manufacturing device includes a first bracket, a first conveying roller, a second conveying roller, a first transition roller, a second transition roller, a first pressure roller and a first conveyor belt. The first conveying roller, the second conveying roller, the first transition roller and the second transition roller are all rotatably arranged on the first bracket. The first transition roller is located between the first conveying roller and the second conveying roller, and the second transition roller is located between the first transition roller and the second conveying roller. The first pressure roller is arranged between the first transition roller and the second transition roller, and the upper end of the first pressure roller is lower than the upper end of the first transition roller. The first conveyor belt is wound around the first conveying roller, the first transition roller, the first pressure roller, the second transition roller and the second conveying roller. The first conveyor belt is used to convey the battery string. Part of the first conveyor belt is wound around the first transition roller, the first pressure roller and the second transition roller to form a string cutting groove. The string cutting mechanism is arranged on the first bracket. The string cutting mechanism includes a string cutting knife and a first drive component. The first drive component is used to drive the string cutting knife to enter or exit the string cutting groove.

[0006] The battery string manufacturing device according to the first embodiment of the utility model has at least the following beneficial effects:

[0007] The portion of the first conveyor belt located at the front end of the stringing mechanism is used to convey the battery string formed by welding by the welding mechanism, and the portion of the first conveyor belt located at the rear end of the stringing mechanism is used to convey the battery string cut by the stringing cutter. When the welding strip of the battery string is located above the stringing groove, the first drive component drives the stringing cutter to move downward to cut the battery string. Afterwards, the first drive component drives the stringing cutter to move upward to wait for cutting the next welding strip. The speed of the battery string before being stringed is consistent with the speed after being stringed. The traditional method of using two independent conveyor belts to convey the battery string can be abandoned to avoid the occurrence of string blocking, and the operation stability of the battery string manufacturing device can be improved.

[0008] According to some embodiments of the utility model, the string cutting mechanism further includes a clamping assembly, which includes a clamping piece and a second driving assembly, and the second driving assembly is used to drive the clamping piece to push the battery string to abut against the first conveyor belt.

[0009] According to some embodiments of the present utility model, the pressing member is located above the first transition roller.

[0010] According to some embodiments of the utility model, the upper end of the first conveying roller, the upper end of the first transition roller, the upper end of the second transition roller and the upper end of the second conveying roller are arranged flush.

[0011] According to some embodiments of the utility model, it also includes a tensioning roller assembly, which includes a first tensioning roller and a second tensioning roller, the first tensioning roller and the second tensioning roller are arranged at intervals along the length direction of the first conveyor belt, and the first conveyor belt is wound around the first tensioning roller and the second tensioning roller.

[0012] According to some embodiments of the present invention, an adjustment component is provided between the first tensioning roller and the first bracket, and the adjustment component is used to adjust the distance between the first tensioning roller and the second tensioning roller.

[0013] According to some embodiments of the utility model, the adjustment component includes an adjustment member and an elastic member, the first bracket is provided with a waist-shaped hole, one end of the roller shaft of the first tensioning roller is movably accommodated in the waist-shaped hole, the side wall of the waist-shaped hole is provided with a threaded hole, the adjustment member is passed through the threaded hole and threadedly matched with the threaded hole, one end of the adjustment member is abutted against one end of the roller shaft of the first tensioning roller, and the elastic member is used to make one end of the roller shaft of the first tensioning roller abut against one end of the adjustment member.

[0014] According to some embodiments of the utility model, it also includes a second bracket, a second conveyor belt, a third conveyor roller and a fourth conveyor roller, the third conveyor roller and the fourth conveyor roller are both rotatably arranged on the second bracket, the second conveyor belt is wound around the third conveyor roller and the fourth conveyor roller, and the second conveyor belt is used to convey the battery strings cut by the string cutter.

[0015] According to some embodiments of the present invention, the upper surface of the first conveyor belt is arranged flush with the upper surface of the second conveyor belt.

[0016] The string welding machine according to the second embodiment of the utility model includes the battery string manufacturing device described in the above embodiment.

[0017] The string welding machine according to the second aspect of the present utility model has at least the following beneficial effects:

[0018] The portion of the first conveyor belt located at the front end of the stringing mechanism is used to convey the battery string formed by welding by the welding mechanism, and the portion of the first conveyor belt located at the rear end of the stringing mechanism is used to convey the battery string cut by the stringing cutter. When the welding strip of the battery string is located above the stringing groove, the first drive component drives the stringing cutter to move downward to cut the battery string. Afterwards, the first drive component drives the stringing cutter to move upward to wait for cutting the next welding strip. The speed of the battery string before being stringed is consistent with the speed after being stringed. The traditional method of using two independent conveyor belts to convey the battery string can be abandoned to avoid the occurrence of string blocking, and the operation stability of the battery string manufacturing device can be improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of a battery string manufacturing device according to an embodiment of the utility model;

[0022] Figure 2 A top view of a battery string manufacturing device according to an embodiment of the utility model;

[0023] Figure 3 for Figure 2 Sectional view along line AA;

[0024] Figure 4 for Figure 3 A partial enlarged view of part B;

[0025] Figure 5 It is a structural schematic diagram of the string cutter mechanism of an embodiment of the utility model;

[0026] Figure 6 A top view of the string cutter mechanism of an embodiment of the utility model;

[0027] Figure 7 for Figure 6 Sectional view of the mid-CC line;

[0028] Figure 8 It is a schematic diagram of assembling the adjustment assembly and the first tensioning roller of an embodiment of the utility model;

[0029] Fig. 9 It is a front view of the adjustment assembly and the first tensioning roller according to an embodiment of the utility model.

[0030] Reference numerals:

[0031] The first bracket 100, the waist-shaped hole 110, the first conveying roller 210, the second conveying roller 220, the first transition roller 230, the second transition roller 240, the first clamping roller 250, the first tensioning roller 260, the second tensioning roller 270, the third driving assembly 280, the first conveying belt 300, the string cutting groove 310, the string cutting knife mechanism 400, the first driving assembly 410, the string cutting knife 420, the second driving assembly 430, the clamping member 440, the adjusting member 510, the elastic member 520, the second bracket 610, the second conveying belt 620, the third conveying roller 630, the fourth conveying roller 640, and the fourth driving assembly 650. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0036] Reference Figures 1 to 4 According to the first embodiment of the utility model, the battery string manufacturing device includes a first bracket 100, a first conveying roller 210, a second conveying roller 220, a first transition roller 230, a second transition roller 240, a first pressing roller 250 and a first conveyor belt 300. The first conveying roller 210, the second conveying roller 220, the first transition roller 230 and the second transition roller 240 are all rotatably arranged on the first bracket 100. The first transition roller 230 is located between the first conveying roller 210 and the second conveying roller 220. The second transition roller 240 is located between the first transition roller 230 and the second conveying roller 220. The first pressing roller 250 is arranged between the first transition roller 230 and the second transition roller 240, and the upper end of the first pressing roller 250 is lower than the upper end of the first transition roller 230. The first conveyor belt 300 The first conveyor belt 300 is wound around the first conveyor roller 210, the first transition roller 230, the first pressure roller 250, the second transition roller 240 and the second conveyor roller 220, and is used to convey the battery string. Part of the first conveyor belt 300 is wound around the first transition roller 230, the first pressure roller 250 and the second transition roller 240 to form a string cutting groove 310. The string cutting mechanism is arranged on the first bracket 100. The string cutting mechanism includes a string cutting knife 420 and a first driving assembly 410. The first driving assembly 410 is used to drive the string cutting knife 420 to enter or exit the string cutting groove 310. In this way, the speed of the battery string before being string cut is consistent with the speed after being string cut, and the traditional method of using two independent conveyor belts to convey the battery string can be abandoned to avoid the occurrence of string blocking, which can improve the operation stability of the battery string manufacturing device.

[0037] Specifically, the portion of the first conveyor belt 300 located at the front end of the stringing mechanism is used to convey the battery string formed by welding by the welding mechanism, and the portion of the first conveyor belt 300 located at the rear end of the stringing mechanism is used to convey the battery string cut by the stringing cutter 420. When the welding strip of the battery string is located above the stringing groove 310, the first drive component 410 drives the stringing cutter 420 to move downward to cut the battery string. Afterwards, the first drive component 410 drives the stringing cutter 420 to move upward to wait for cutting the next welding strip. The speed of the battery string before being stringed is consistent with the speed after being stringed, which can abandon the traditional method of using two independent conveyor belts to convey the battery string to avoid the occurrence of string blocking, and can improve the operating stability of the battery string manufacturing device.

[0038] It should be noted that the roller shaft of the second conveying roller 220 is connected to the third driving assembly 280 , and the third driving assembly 280 can actively drive the second conveying roller 220 to rotate so as to move the first conveying belt 300 , which will not be described in detail herein.

[0039] Reference Figures 4 to 7 In some embodiments of the utility model, the string cutting mechanism also includes a clamping assembly, which includes a clamping member 440 and a second driving assembly 430. The second driving assembly 430 is used to drive the clamping member 440 to push the battery string to abut against the first conveyor belt 300, which can reduce the deviation of the battery string to improve the cutting stability of the string cutting knife 420, thereby improving the consistency of the cutting position of the welding strip.

[0040] Specifically, the second drive component 430 is installed on the first bracket 100, the clamping piece 440 is arranged on the first bracket 100 and can move in the up and down direction, and the clamping piece 440 is located above the first conveyor belt 300, and the output end of the second drive component 430 is connected to the clamping piece 440 to drive the clamping piece 440 to move up and down. Before the string cutter 420 cuts the welding strip, the second drive component 430 first drives the clamping piece 440 to move downward, and the clamping piece 440 pushes the battery string to abut against the first conveyor belt 300 to fix the position of the welding strip. Afterwards, the first drive component 410 drives the string cutter 420 to move downward to cut the welding strip, which can reduce the deviation of the battery string to improve the cutting stability of the string cutter 420, thereby improving the consistency of the cutting position of the welding strip.

[0041] Reference Figure 7 In some embodiments of the present invention, the pressing member 440 is located above the first transition roller 230 , which can reduce the deformation of the first conveyor belt 300 , thereby increasing the service life of the first conveyor belt 300 .

[0042] Specifically, when the second drive assembly 430 drives the clamping member 440 to push the battery string to abut against the first conveyor belt 300, the clamping force of the clamping member 440 is transmitted to the first transition roller 230 through the first conveyor belt 300. The first transition roller 230 can withstand the clamping force, thereby reducing the deformation of the first conveyor belt 300, thereby increasing the service life of the first conveyor belt 300.

[0043] Reference Figure 3 In some embodiments of the present invention, the upper end of the first conveying roller 210, the upper end of the first transition roller 230, the upper end of the second transition roller 240 and the upper end of the second conveying roller 220 are arranged flush, so that the upper surface of the first conveyor belt 300 is parallel to the horizontal plane, and the battery string can be conveyed smoothly.

[0044] Reference Figure 3 In some embodiments of the utility model, a tension roller assembly is also included, and the tension roller assembly includes a first tension roller 260 and a second tension roller 270. The first tension roller 260 and the second tension roller 270 are spaced apart along the length direction of the first conveyor belt 300. The first conveyor belt 300 is wound around the first tension roller 260 and the second tension roller 270, so that the first conveyor belt 300 is in a taut state and can stably convey the battery string.

[0045] Specifically, the first conveyor belt 300 is sequentially wound around the first conveyor roller 210, the first transition roller 230, the first pressure roller 250, the second transition roller 240, the second conveyor roller 220, the second tensioning roller 270 and the first tensioning roller 260, so that the first conveyor belt 300 is in a taut state and can stably convey the battery string.

[0046] Reference Figure 3 , Figure 8 and Fig. 9 In some embodiments of the utility model, an adjustment component is provided between the first tensioning roller 260 and the first bracket 100, and the adjustment component is used to adjust the distance between the first tensioning roller 260 and the second tensioning roller 270, and can adjust the tightness of the first conveyor belt 300 to increase the service life of the first conveyor belt 300.

[0047] Specifically, the first conveyor belt 300 tends to become loose after being used for a period of time. The operator can increase the distance between the first tensioning roller 260 and the second tensioning roller 270 by adjusting the assembly to keep the first conveyor belt 300 in a taut state, thereby increasing the service life of the first conveyor belt 300.

[0048] Reference Figure 3 , Figure 8 and Fig. 9In some embodiments of the utility model, the adjustment component includes an adjustment member 510 and an elastic member 520. The first bracket 100 is provided with a waist-shaped hole 110. One end of the roller shaft of the first tensioning roller 260 is movably accommodated in the waist-shaped hole 110. The side wall of the waist-shaped hole 110 is provided with a threaded hole. The adjustment member 510 is passed through the threaded hole and threadedly matched with the threaded hole. One end of the adjustment member 510 abuts against one end of the roller shaft of the first tensioning roller 260. The elastic member 520 is used to make one end of the roller shaft of the first tensioning roller 260 abut against one end of the adjustment member 510, so as to adjust the tightness of the first conveyor belt 300 to improve the service life of the first conveyor belt 300.

[0049] Specifically, the elastic member 520 is a component such as a compression spring or rubber that can undergo axial elastic deformation. One end of the elastic member 520 abuts against one side of the waist-shaped hole 110 in the length direction, and the other end of the elastic member abuts against the side of the roller shaft of the first tensioning roller 260 away from the adjusting member 510. When the adjusting member 510 pushes the first tensioning roller 260 to move in a direction away from the second tensioning roller 270, the elastic member 520 is compressed. When the adjusting member 510 releases the first tensioning roller 260, the elastic member 520 pushes the first tensioning roller 260 to move in a direction close to the second tensioning roller 270, so that the distance between the first tensioning roller 260 and the second tensioning roller 270 increases or decreases, and the tightness of the first conveyor belt 300 can be adjusted to increase the service life of the first conveyor belt 300.

[0050] It should be noted that the adjusting member 510 can also be threadedly connected to one end of the roller shaft of the first tensioning roller 260 , and can also adjust the distance between the first tensioning roller 260 and the second tensioning roller 270 , which will not be described in detail herein.

[0051] Of course, in some specific embodiments, the adjusting member 510 may also be connected to a driving motor, and the driving motor can drive the adjusting member 510 to rotate to automatically adjust the distance between the first tensioning roller 260 and the second tensioning roller 270, which will not be described in detail here.

[0052] Reference Figure 3 In some embodiments of the utility model, a second bracket 610, a second conveyor belt 620, a third conveyor roller 630 and a fourth conveyor roller 640 are also included. The third conveyor roller 630 and the fourth conveyor roller 640 are both rotatably arranged on the second bracket 610, and the second conveyor belt 620 is wound around the third conveyor roller 630 and the fourth conveyor roller 640. The second conveyor belt 620 is used to convey the battery strings cut by the string cutter 420. The second conveyor belt 620 can promptly transport the battery strings cut by the string cutter 420 to avoid congestion of the battery strings on the first conveyor belt 300, and can improve the operating stability of the battery string manufacturing device.

[0053] It should be noted that the roller shaft of the fourth conveying roller 640 is connected to the fourth driving assembly 650 , and the fourth driving assembly 650 can actively drive the fourth conveying roller 640 to rotate so as to move the second conveying belt 620 , which will not be described in detail herein.

[0054] It is understandable that the second bracket 610 is also provided with a third tensioning roller and a second pressure roller, and the second conveyor belt 620 is wound around the third conveyor roller 630, the fourth conveyor roller 640, the third tensioning roller and the second pressure roller to keep the second conveyor belt 620 in a taut state, which is not described in detail here.

[0055] It should be noted that the upper surface of the first conveyor belt 300 is flush with the upper surface of the second conveyor belt 620 , so that the battery string manufacturing device can smoothly convey the battery string, which will not be described in detail here.

[0056] According to the string welding machine of the second embodiment of the utility model, including the battery string manufacturing device of the first embodiment of the utility model, the speed of the battery string before being cut is consistent with the speed after being cut, and the traditional method of using two independent conveyor belts to transport the battery string can be abandoned to avoid the occurrence of string blocking, which can improve the yield rate of the battery string.

[0057] Specifically, the portion of the first conveyor belt 300 located at the front end of the stringing mechanism is used to convey the battery string formed by welding by the welding mechanism, and the portion of the first conveyor belt 300 located at the rear end of the stringing mechanism is used to convey the battery string cut by the stringing cutter 420. When the welding strip of the battery string is located above the stringing groove 310, the first drive component 410 drives the stringing cutter 420 to move downward to cut the battery string. Afterwards, the first drive component 410 drives the stringing cutter 420 to move upward to wait for cutting the next welding strip. The speed of the battery string before being stringed is consistent with the speed after being stringed, which can abandon the traditional method of using two independent conveyor belts to convey the battery string to avoid the occurrence of string blocking, and can improve the operating stability of the battery string manufacturing device.

[0058] It is conceivable that the above-mentioned driving components can be cylinders, motors and ball screws, or other conventional driving components such as hydraulic cylinders. The specific implementation method can be adjusted accordingly according to actual needs and is not limited here.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A battery string manufacturing device, characterized in that: include: First bracket; A first conveying roller and a second conveying roller are both rotatably disposed on the first bracket; A first transition roller and a second transition roller are both rotatably disposed on the first bracket, the first transition roller is located between the first conveying roller and the second conveying roller, and the second transition roller is located between the first transition roller and the second conveying roller; a first pressing roller, disposed between the first transition roller and the second transition roller, wherein the upper end of the first pressing roller is lower than the upper end of the first transition roller; A first conveyor belt is wound around the first conveyor roller, the first transition roller, the first pressing roller, the second transition roller and the second conveyor roller, the first conveyor belt is used to convey the battery string, and a portion of the first conveyor belt is wound around the first transition roller, the first pressing roller and the second transition roller to form a string cutting groove; The string cutting mechanism is arranged on the first bracket, and the string cutting mechanism includes a string cutting knife and a first driving component, and the first driving component is used to drive the string cutting knife to enter or exit the string cutting groove.

2. The battery string manufacturing device according to claim 1, characterized in that: The string cutting mechanism further includes a clamping assembly, which includes a clamping member and a second driving assembly, wherein the second driving assembly is used to drive the clamping member to push the battery string to abut against the first conveyor belt.

3. The battery string manufacturing device according to claim 2, characterized in that: The pressing member is located above the first transition roller.

4. The battery string manufacturing device according to claim 1, characterized in that: The upper end of the first conveying roller, the upper end of the first transition roller, the upper end of the second transition roller and the upper end of the second conveying roller are arranged flush with each other.

5. The battery string manufacturing device according to claim 1, characterized in that: It also includes a tensioning roller assembly, which includes a first tensioning roller and a second tensioning roller. The first tensioning roller and the second tensioning roller are arranged at intervals along the length direction of the first conveyor belt, and the first conveyor belt is wound around the first tensioning roller and the second tensioning roller.

6. The battery string manufacturing device according to claim 5, characterized in that: An adjustment component is provided between the first tensioning roller and the first bracket, and the adjustment component is used to adjust the distance between the first tensioning roller and the second tensioning roller.

7. The battery string manufacturing device according to claim 6, characterized in that: The adjustment component includes an adjustment member and an elastic member. The first bracket is provided with a waist-shaped hole. One end of the roller shaft of the first tensioning roller is movably accommodated in the waist-shaped hole. The side wall of the waist-shaped hole is provided with a threaded hole. The adjustment member is passed through the threaded hole and threadedly matched with the threaded hole. One end of the adjustment member abuts against one end of the roller shaft of the first tensioning roller. The elastic member is used to make one end of the roller shaft of the first tensioning roller abut against one end of the adjustment member.

8. The battery string manufacturing device according to claim 1, characterized in that: It also includes a second bracket, a second conveyor belt, a third conveyor roller and a fourth conveyor roller. The third conveyor roller and the fourth conveyor roller are both rotatably arranged on the second bracket, the second conveyor belt is wound around the third conveyor roller and the fourth conveyor roller, and the second conveyor belt is used to convey the battery strings cut by the string cutter.

9. The battery string manufacturing device according to claim 8, characterized in that: The upper surface of the first conveyor belt is flush with the upper surface of the second conveyor belt.

10. A string welding machine, characterized in that: The invention comprises a battery string manufacturing device as claimed in any one of claims 1 to 9.