Battery sleeve processing device

Abstract

The battery sleeve processing device comprises a conveying assembly, a rotary driving assembly and a heating assembly, the conveying assembly comprises a conveying mechanism and a plurality of bases, the multiple bases are installed on the conveying mechanism at intervals, the bases are rotationally connected with the conveying mechanism, and the bases are configured to be provided with batteries; the rotary driving assembly is connected with the base and is configured to drive the base to drive the battery to rotate along the axis of the battery; and the heating assembly is configured to be arranged opposite to the battery and is used for performing thermal shrinkage forming on the sleeve on the battery. In the rotating process of the battery, the heating assembly heats the casing pipe on the battery in all aspects, thermal shrinkage forming of the battery casing pipe is achieved, the casing pipe on the battery is heated evenly, the situation that the casing pipe is wrinkled after thermal shrinkage is avoided, and the thermal shrinkage effect of the battery casing pipe is good.

Description

Technical Field

[0001] The present application belongs to the field of battery manufacturing technology, and in particular to a battery casing processing device. Background Art

[0002] In battery processing, a casing needs to be wrapped around the battery cell. In the related technology, the material is fed in an assembly line, and high-temperature hot air is blown on both sides to heat the casing and shrink it to wrap around the surface of the battery cell. There are problems such as uneven heating of the casing, inconsistent shapes at different heated positions after shrinkage, wrinkles, poor shrinkage appearance, and poor shrinkage effect. Utility Model Content

[0003] An embodiment of the present application provides a battery casing processing device, which drives a base on a conveying mechanism to rotate by a rotating driving component, thereby driving a battery mounted on the base to rotate along its axis. A heating component is arranged opposite to the battery, and the heating component performs heat shrinkage molding on the casing on the rotating battery. The casing on the battery is heated evenly and has a good heat shrinkage effect.

[0004] The present application provides a battery casing processing device, including:

[0005] A conveying assembly, the conveying assembly includes a conveying mechanism and a plurality of bases, the plurality of bases are installed on the conveying mechanism at intervals, the bases are rotatably connected to the conveying mechanism, and the bases are configured to install batteries;

[0006] A rotation drive assembly, the rotation drive assembly is connected to the base, and the rotation drive assembly is configured to drive the base to drive the battery to rotate along the axis of the battery;

[0007] The heating component is configured to be arranged opposite to the battery and to perform heat shrink molding on the sleeve on the battery.

[0008] Optionally, the conveying mechanism includes:

[0009] The conveyor belt, the base is installed on the conveyor belt, and a plurality of bases are arranged at intervals along the length direction of the conveyor belt;

[0010] The driving member is connected to the conveyor belt and is configured to drive the conveyor belt to move.

[0011] Optionally, the base includes a mounting block, a fixing plate is mounted on the conveyor belt, the mounting block is rotatably connected to the fixing plate, and the mounting block is connected to the rotating drive assembly.

[0012] Optionally, the base further includes a magnetic attraction component, which is mounted on an end of the mounting block facing away from the fixing plate, and the magnetic attraction component is configured to adsorb and fix the battery.

[0013] Optionally, the rotary drive assembly includes:

[0014] Conveyor belts;

[0015] A pulley set, a conveyor belt is tensioned on the pulley set, and one side of the conveyor belt facing away from the pulley set contacts the side surface of the base;

[0016] A driving mechanism, connected to the pulley set, and the driving mechanism is configured to drive the pulley set to drive the conveyor belt to move.

[0017] Optionally, along the length direction of the conveyor belt, the conveyor belt includes a starting end and a terminating end, the distance between the starting end and the terminating end is L, and the distance between any adjacent bases is S, wherein, L≥S.

[0018] Optionally, along the length direction of the conveyor belt, the conveyor belt includes a starting end and a terminating end, the distance between the starting end and the terminating end is L, and the perimeter of the base is D, wherein, L≥D.

[0019] Optionally, the pulley set includes a driving wheel and a plurality of driven wheels, the conveyor belt is tensioned on the driving wheel and the driven wheels, along the length direction of the conveyor belt, the plurality of driven wheels are arranged at intervals, the axis of the driving wheel is parallel to the axis of any one of the driven wheels, and the output end of the driving mechanism is connected to the driving wheel.

[0020] Optionally, the heating assembly includes:

[0021] A first heating mechanism;

[0022] A second heating mechanism, the first heating mechanism and the second heating mechanism are arranged at intervals relatively, and the first heating mechanism and the second heating mechanism are configured to be located on both sides of the battery.

[0023] Optionally, both the first heating mechanism and the second heating mechanism include:

[0024] A box body, an air outlet is formed on one side plate of the box body;

[0025] A heating element, installed in the box body;

[0026] An air supply member, installed in the box body, and the air supply member is located on the side of the heating element facing away from the air outlet.

[0027] Optionally, the air outlet includes a plurality of sub-air outlets, along the height direction of the box body, the plurality of sub-air outlets are arranged at intervals, and / or, along the conveying direction of the conveying assembly, the plurality of sub-air outlets are arranged at intervals.

[0028] The battery sleeve processing device provided by the embodiment of the present application includes a conveying component, a rotation driving component, and a heating component. The conveying component includes a conveying mechanism and a plurality of bases. The bases are rotatably connected to the conveying mechanism, and the bases are used to install batteries. The rotation driving component is connected to the bases, and the rotation driving component drives the bases to rotate and drives the batteries to rotate around the axis of the batteries. The batteries are disposed opposite to the heating component. During the rotation of the batteries, the heating component heats the sleeves on the batteries in all directions, realizing the heat shrinkage molding of the battery sleeves. The sleeves on the batteries are heated evenly, avoiding the occurrence of wrinkles after the sleeves are heat-shrunk, and the heat shrinkage effect of the battery sleeves is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0030] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. Among them, the same reference numerals in the following description represent the same parts.

[0031] Figure 1 It is a three-dimensional schematic diagram of the battery sleeve processing device provided by the embodiment of the present application.

[0032] Figure 2 It is a top view of the battery sleeve processing device provided by the embodiment of the present application.

[0033] Figure 3 It is a first axonometric view after the conveying component and the rotation driving component in the battery sleeve processing device provided by the embodiment of the present application are assembled.

[0034] Figure 4 It is a second axonometric view after the conveying component and the rotation driving component in the battery sleeve processing device provided by the embodiment of the present application are assembled.

[0035] Figure 5 It is a schematic diagram of the base in the battery sleeve processing device provided by the embodiment of the present application.

[0036] Figure 6 It is a top view after the conveying component and the rotation driving component of the battery sleeve processing device provided by the embodiment of the present application are assembled. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0038] Referring to Figure 1 and Figure 2 , an embodiment of the present application provides a battery sleeve processing device 10, which includes a conveying assembly 100, a rotation driving assembly 200, and a heating assembly 300.

[0039] In this embodiment, the conveying assembly 100 includes a conveying mechanism 110 and a plurality of bases 120. The plurality of bases 120 are installed on the conveying mechanism 110 at intervals, and the bases 120 are rotatably connected to the conveying mechanism 110. The base 120 is configured to mount the battery 20. The conveying mechanism 110 is configured to convey the battery 20. The battery 20 is a cylindrical battery.

[0040] In this embodiment, the rotation driving assembly 200 is connected to the base 120, and the rotation driving assembly 200 is configured to drive the base 120 to drive the battery 20 to rotate along the axis of the battery 20.

[0041] In this embodiment, the heating assembly 300 is configured to be disposed opposite to the battery 20 and perform heat shrinkage molding on the sleeve on the battery 20.

[0042] In the embodiment of the present application, the battery 20 is mounted on the base 120 by a manipulator, and the conveying mechanism 110 conveys the battery 20 to the heating side of the heating assembly 300. The rotation driving assembly 200 drives the base 120 to rotate, and the base 120 drives the battery 20 to rotate along the axis of the battery 20. During the rotation of the battery 20, the sleeve on the battery 20 passes through the heating side of the heating assembly 300 circumferentially, and the circumferential heating of the battery sleeve is uniform. The situation of wrinkles occurring after the sleeve is heat-shrunk is avoided, and the heat shrinkage effect of the battery sleeve is good.

[0043] In some embodiments, referring to Figure 3 and Figure 4, the conveying mechanism 110 includes a conveyor belt 111 and a driving member 112. The base 120 is mounted on the conveyor belt 111, and along the length direction of the conveyor belt 111, a plurality of bases 120 are arranged at intervals. The driving member 112 is connected to the conveyor belt 111, and the driving member 112 is configured to drive the conveyor belt 111 to move. In addition, the conveying assembly 100 further includes a mounting platform, and the conveying mechanism 110 is fixed on the mounting platform. The conveying mechanism 110 further includes a driving wheel and a driven wheel, and the driving wheel and the driven wheel are arranged at intervals. The conveyor belt 111 is tensioned on the driving wheel and the driven wheel. The driving member 112 is a motor, and the output shaft of the motor is fixedly connected to the driving wheel. The motor is located on one side of the conveyor belt 111, and the motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the conveyor belt 111. A plurality of bases 120 are mounted at intervals on the surface of the conveyor belt 111. For example, along the length direction of the conveyor belt 111, a plurality of bases 120 are arranged at equal intervals. The conveyor belt 111 conveys the battery in the first direction. The conveyor belt 111 is at least partially located below the heating side of the heating assembly 300, and the conveyor belt 111 conveys the battery to the heating side of the heating assembly 300.

[0044] In the embodiment of the present application, the driving member 112 drives the conveyor belt 111 to rotate, and conveys the battery to the heating side of the heating assembly 300, with a simple structure and stable transportation.

[0045] In some embodiments, refer to FIGS. 4 and Figure 5 , the base 120 includes a mounting block 121. The mounting block 121 is a cylindrical block structure, and the diameter of the mounting block 121 is larger than the diameter of the battery 20. The mounting block 121 is coaxially arranged with the battery 20. The material of the mounting block 121 is aluminum. The rotary drive assembly 200 is connected to the mounting block 121, and the rotary drive assembly 200 drives the mounting block 121 to rotate. A fixing plate 113 is mounted on the conveyor belt 111. The fixing plate 113 is fixedly connected to the conveyor belt 111 by a pin or adhesive. The fixing plate 113 is a rectangular plate. The material of the fixing plate 113 is a metal material such as aluminum or steel. The width of the fixing plate 113 is the same as the width of the conveyor belt 111. The two side edges of the fixing plate 113 are aligned with the two side edges of the conveyor belt 111. The cross-sectional area of the mounting block 121 along the direction perpendicular to the axis is smaller than the area of the fixing plate 113. The projection of the mounting block 121 on the fixing plate 113 completely falls within the fixing plate 113. The axis of the mounting block 121 and the center of the fixing plate 113 are located on the same straight line. The mounting block 121 is rotatably connected to the fixing plate 113. For example, a rotating shaft is provided on the side of the fixing plate 113 facing away from the conveyor belt 111, and the mounting block 121 is sleeved on the rotating shaft, and the mounting block 121 is rotatably connected to the rotating shaft.

[0046] In the embodiment of the present application, by mounting the fixing plate 113 on the conveyor belt 111 and rotatably connecting the fixing plate 113 to the mounting block 121, the rotation of the mounting block 121 is realized, with a simple structure and convenient installation and disassembly operations.

[0047] In some embodiments, referring to Figure 5 , the base 120 further includes a magnetic attraction member 122. The magnetic attraction member 122 is cylindrical. The magnetic attraction member 122 is a magnet. The magnetic attraction member 122 is coaxially arranged with the mounting block 121, and the magnetic attraction member 122 is configured to adsorb and fix the battery 20.

[0048] Exemplarily, referring to Figure 5 , a blind hole is provided at one end of the mounting block 121 away from the fixing plate 113. The magnetic attraction member 122 is partially located in the blind hole, and the other part extends out of the mounting block 121. A groove corresponding to the magnetic attraction member 122 is provided at the bottom of the battery 20, and the battery 20 is sleeved on the magnetic attraction member 122. A pin hole is provided on the side of the mounting block 121. The pin hole communicates with the blind hole, and the axis of the pin hole is disposed perpendicular to the axis of the blind hole. A pin shaft is provided in the pin hole, and the pin shaft abuts against the magnetic attraction member 122 to fixedly connect the magnetic attraction member 122 and the mounting block 121. In addition, the height of the magnetic attraction member 122 extending out of the mounting block 121 can be adjusted to achieve the purpose of adjusting the height of the battery 20. It has the advantages of simple structure and convenient installation and operation.

[0049] In the embodiment of the present application, the battery 20 is detachably mounted at the end of the mounting block 121 through the magnetic attraction member 122, so that the battery 20 can rotate synchronously with the mounting block 121, facilitating the installation and disassembly of the battery 20.

[0050] In some embodiments, referring to Figure 3 and Figure 4 , the rotation driving assembly 200 includes a conveyor belt 210, a pulley set 220 and a driving mechanism 230. The conveyor belt 210 extends along the transmission direction of the conveying mechanism 110, and the conveyor belt 210 is located on one side of the base 120. The conveyor belt 210 is located below the heating side of the heating assembly 300. The conveyor belt 210 is tensioned on the pulley set 220, and the side of the conveyor belt 210 away from the pulley set 220 is in contact with the side surface of the base 120. The driving mechanism 230 is connected to the pulley set 220, and the driving mechanism 230 is configured to drive the pulley set 220 to drive the conveyor belt 210 to move. The moving direction of the conveyor belt 210 is the same as or opposite to the transmission direction of the transmission belt 111.

[0051] In the embodiment of the present application, the driving mechanism 230 drives the pulley set 220 to rotate to drive the conveyor belt 210 to move. Since the conveyor belt 210 is in contact with the side surface of the base 120, the conveyor belt 210 drives the base 120 to rotate during the movement. The rotation driving assembly 200 is located on one side of the base 120, and the rotation driving assembly 200 and the conveying assembly 100 are separately designed, with simple assembly.

[0052] In some embodiments, referring to Figure 6, the conveyor belt 210 includes a starting end 211 and an ending end 212. As the conveying component 100 conveys the battery 20, the base 120 sequentially contacts the conveyor belt 210 from the starting end 211 to the ending end 212. The distance between the starting end 211 and the ending end 212 is L, and the distance between any adjacent bases 120 is S, where L≥S. For example, along the length direction of the conveying component 100, the conveying mechanism 110 is provided with a plurality of bases 120, and the plurality of bases 120 are sequentially the first base, the second base, ..., the Nth base, where L can be the distance between the first base and the Nth base, or the distance between the first base and the third base, or the distance between the first base and the second base.

[0053] In the embodiment of the present application, the length of the conveyor belt 210 is greater than or equal to the distance between any adjacent bases 120, and the conveyor belt 210 is always in contact with the base 120, thereby avoiding the conveyor belt 210 from idling and improving efficiency. In addition, when the length of the conveyor belt 210 is long enough, the conveyor belt 210 can be in contact with multiple bases 120 at the same time, so that multiple bases 120 can rotate simultaneously, thereby improving heat shrinking efficiency.

[0054] In some embodiments, see Figure 6 Along the length direction of the conveyor belt 210, the conveyor belt 210 includes a starting end 211 and an ending end 212, the distance between the starting end 211 and the ending end 212 is L, and the circumference of the base 120 is D, wherein L≥D.

[0055] In the embodiment of the present application, the distance between the starting end 211 and the terminating end 212 is set to be greater than or equal to the circumference of the base 120. As the conveying mechanism 110 conveys the base 120, each base 120 starts to rotate from the starting end 211 and stops rotating at the terminating end 212. Each base 120 rotates at least one circle. Correspondingly, the battery 20 on the base 120 also rotates one circle. The heating component 300 heats the battery casing circumferentially to ensure that all parts of the battery casing are heated evenly.

[0056] In some embodiments, see Figure 3 , Figure 4 and Figure 6, the pulley set 220 includes a driving pulley 221 and a plurality of driven pulleys 222, and the conveyor belt 210 is tensioned on the driving pulley 221 and the driven pulleys 222. Along the length direction of the conveyor belt 210, the plurality of driven pulleys 222 are arranged at intervals. The axes of the plurality of driven pulleys 222 are arranged in parallel at intervals, and the intervals between any two adjacent driven pulleys 222 are the same. The axis of the driving pulley 221 is arranged in parallel with the axis of any one of the driven pulleys 222. For example, along the length direction of the conveyor belt 210, the driving pulley 221 and the plurality of driven pulleys 222 are arranged at intervals in sequence, and the driving pulley 221 is located at the starting position or the ending position. As a variation, along the length direction of the conveyor belt 210, the plurality of driven pulleys 222 are successively the first driven pulley, the second driven pulley,..., the Nth driven pulley, the driving pulley 221 is located on one side of the first driven pulley, and the plane formed by the axis of the driving pulley 221 and the axis of the first driven pulley is perpendicularly arranged with the plane formed by the axes of the plurality of driven pulleys 222. The positions of the driving pulley 221 and the driven pulleys 222 can be arranged according to the space size.

[0057] In the embodiment of the present application, along the length direction of the conveyor belt 210, a plurality of driven pulleys 222 are arranged, and the conveyor belt 210 is supported by the driven pulleys 222 to ensure that all parts on the conveyor belt 210 are in contact with the base 120, so as to drive the base 120 to rotate and improve the processing yield of heat shrinkage forming.

[0058] In other embodiments, refer to Figure 3 and Figure 6 , the pulley set 220 includes a driving pulley 221 and a driven pulley 222, and the conveyor belt 210 is tensioned on the driving pulley 221 and the driven pulley 222.

[0059] In some embodiments, refer to Figure 1 and Figure 2 , the heating assembly 300 includes a first heating mechanism 310 and a second heating mechanism 320. The first heating mechanism 310 and the second heating mechanism 320 are arranged at intervals relatively, and the heating sides of the first heating mechanism 310 and the second heating mechanism 320 are opposite to each other. The first heating mechanism 310 and the second heating mechanism 320 are configured to be located on both sides of the battery 20. The conveying assembly 100 and the rotary driving assembly 200 are located below the first heating mechanism 310 and the second heating mechanism 320, and the gap between the first heating mechanism 310 and the second heating mechanism 320 is located above the conveyor belt 111, and the battery 20 conveyed on the conveyor belt 111 passes through the gap between the first heating mechanism 310 and the second heating mechanism 320.

[0060] In the embodiment of the present application, the first heating mechanism 310 and the second heating mechanism 320 heat the battery 20 from both sides, with a large heating area and high heat shrinkage processing efficiency.

[0061] In some embodiments, refer to Figure 1 andFigure 2 Both the first heating mechanism 310 and the second heating mechanism 320 include a box body 330, a heating element 340, and a blowing element 350. The box body 330 has a cubic structure and is made of heat-insulating material. An air outlet 331 is formed on one side plate of the box body 330. The air outlets 331 of the first heating mechanism 310 and the second heating mechanism 320 are arranged oppositely. The battery 20 passes through the gap between the air outlets 331 of the first heating mechanism 310 and the second heating mechanism 320. The heating element 340 and the blowing element 350 are installed inside the box body 330. The heating element 340 is located on one side of the blowing element 350, and the heating element 340 is closer to the air outlet 331 than the blowing element 350. The blowing element 350 is a fan. The heating element 340 is a heating rod, and both ends of the heating rod are fixed on the side wall of the box body 330. The blowing element 350 sends out the heat generated by the heating element 340 from the air outlet 331, and the hot air acts on the battery sleeve.

[0062] In some embodiments, refer to Figure 1 The air outlet 331 includes a plurality of sub-air outlets 332. Along the height direction of the box body 330, the plurality of sub-air outlets 332 are arranged at intervals. The plurality of sub-air outlets 332 are respectively a first sub-air outlet and a second sub-air outlet, and the first sub-air outlet and the second sub-air outlet are arranged at intervals. The shape of the sub-air outlet 332 can be a long strip-shaped rectangular through hole, a circular through hole, a rhombic through hole, etc. The first sub-air outlet corresponds to one end of the battery 20, and the second sub-air outlet corresponds to the other end of the battery 20. Ensure the covering dimensions at both ends of the battery 20.

[0063] In some embodiments, refer to Figure 1 Along the conveying direction of the conveying component 100, the plurality of sub-air outlets 332 are arranged at intervals. The plurality of sub-air outlets 332 are respectively a first sub-air outlet and a third sub-air outlet. Along the conveying direction of the conveying component 100, the first sub-air outlet and the third sub-air outlet are arranged at intervals. The first sub-air outlet pre-shrinks the battery sleeve, and the second sub-air outlet performs final heat shrinking and flattening on the battery sleeve.

[0064] In some embodiments, the air outlet 331 includes a plurality of sub-air outlets 332, and the plurality of sub-air outlets 332 are arranged in a matrix within the side surface of the box body 330.

[0065] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0067] The above has introduced in detail the battery sleeve processing device provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A battery casing processing device (10), characterized in that: include: A conveying assembly (100), the conveying assembly (100) comprising a conveying mechanism (110) and a plurality of bases (120), the plurality of bases (120) being installed on the conveying mechanism (110) at intervals, the bases (120) being rotatably connected to the conveying mechanism (110), and the bases (120) being configured to install a battery (20); A rotation drive assembly (200), the rotation drive assembly (200) being connected to the base (120), the rotation drive assembly (200) being configured to drive the base (120) to drive the battery (20) to rotate along an axis of the battery (20); A heating component (300) is configured to be disposed opposite to the battery (20) and to perform heat shrink molding on the sleeve on the battery (20).

2. The battery casing processing device (10) according to claim 1, characterized in that: The conveying mechanism (110) comprises: A conveyor belt (111), wherein the base (120) is installed on the conveyor belt (111), and a plurality of bases (120) are arranged at intervals along the length direction of the conveyor belt (111); A driving member (112) is connected to the conveyor belt (111), and the driving member (112) is configured to drive the conveyor belt (111) to move.

3. The battery casing processing device (10) according to claim 2, characterized in that: The base (120) comprises a mounting block (121), a fixing plate (113) is mounted on the transmission belt (111), the mounting block (121) is rotatably connected to the fixing plate (113), and the mounting block (121) is connected to the rotation drive assembly (200).

4. The battery casing processing device (10) according to claim 3, characterized in that: The base (120) further comprises a magnetic attraction member (122), wherein the magnetic attraction member (122) is mounted on an end of the mounting block (121) away from the fixing plate (113), and the magnetic attraction member (122) is configured to adsorb and fix the battery (20).

5. The battery casing processing device (10) according to any one of claims 1 to 4, characterized in that: The rotary drive assembly (200) comprises: Conveyor belt (210); a pulley group (220), the conveyor belt (210) being tensioned on the pulley group (220), and a side of the conveyor belt (210) facing away from the pulley group (220) being in contact with a side surface of the base (120); A driving mechanism (230) is connected to the pulley set (220), and the driving mechanism (230) is configured to drive the pulley set (220) to drive the conveyor belt (210) to move.

6. The battery casing processing device (10) according to claim 5, characterized in that: Along the length direction of the conveyor belt (210), the conveyor belt (210) includes a starting end (211) and an ending end (212), the distance between the starting end (211) and the ending end (212) is L, and the distance between any adjacent bases (120) is S, wherein L≥S.

7. The battery casing processing device (10) according to claim 5, characterized in that: Along the length direction of the conveyor belt (210), the conveyor belt (210) includes a starting end (211) and an ending end (212), the distance between the starting end (211) and the ending end (212) is L, and the circumference of the base (120) is D, wherein L≥D.

8. The battery casing processing device (10) according to claim 5, characterized in that: The pulley group (220) comprises a driving wheel (221) and a plurality of driven wheels (222); the conveyor belt (210) is tensioned on the driving wheel (221) and the driven wheels (222); along the length direction of the conveyor belt (210), the plurality of driven wheels (222) are arranged at intervals; the axis of the driving wheel (221) is arranged parallel to the axis of any one of the driven wheels (222); and the output end of the driving mechanism (230) is connected to the driving wheel (221).

9. The battery casing processing device (10) according to any one of claims 1 to 4, characterized in that: The heating assembly (300) comprises: A first heating mechanism (310); A second heating mechanism (320), the first heating mechanism (310) and the second heating mechanism (320) are arranged relative to each other and spaced apart, and the first heating mechanism (310) and the second heating mechanism (320) are configured to be located on both sides of the battery (20).

10. The battery casing processing device (10) according to claim 9, characterized in that: The first heating mechanism (310) and the second heating mechanism (320) both include: A box body (330), wherein an air outlet (331) is provided on a side panel of the box body (330); A heating element (340) is installed in the box (330); An air supply member (350) is installed in the box body (330), and the air supply member (350) is located on a side of the heating member (340) away from the air outlet (331).

11. The battery casing processing device (10) according to claim 10, characterized in that: The air outlet (331) includes a plurality of sub-air outlets (332), and the plurality of sub-air outlets (332) are arranged at intervals along the height direction of the box body (330), and / or the plurality of sub-air outlets (332) are arranged at intervals along the conveying direction of the conveying component (100).

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