Integrated production equipment for battery shell with anti-explosion sheet

Abstract

The utility model discloses integrated production equipment for a battery shell with an anti-explosion piece, which relates to the technical field of new energy battery production and comprises an unwinding device, a stamping device, a first welding device, a roll folding device, a second welding device and a slitting device which are sequentially arranged. The stamping device and the first welding device have enough machining time, so that the equipment can sequentially machine the material belt without shutdown; continuous processing among the devices is realized through the material pulling device and a bending roller of the roller bending device; the cutting table can move in the conveying direction of the material belt when a single shell is cut, so that the equipment can cut the single shell without shutdown, the battery shell with an anti-explosion piece can be machined and produced by all the devices without shutdown, the battery shell is produced in a one-line flow mode, labor input during equipment conversion is saved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery production, in particular to an integrated production device for a battery housing with an explosion-proof sheet. Background Art

[0002] With the continuous development of new energy technology, new energy batteries are widely used in fields such as electric vehicles, energy storage systems, and smart homes. Currently, in the production process of square new energy battery housings, processes such as strip cutting, housing bending and forming, housing welding, and explosion-proof sheet welding need to be carried out sequentially. Welding the explosion-proof sheet after the housing is formed first results in high process difficulty for explosion-proof sheet welding; the production of square housings with explosion-proof sheets takes too long on the production line, and the conversion between each process leads to low overall production efficiency and high manual labor intensity, which is not conducive to production. Summary of the Utility Model

[0003] An object of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an integrated production device for a battery housing with an explosion-proof sheet, which realizes the production of battery housings with explosion-proof sheets in a one-line flow and improves production efficiency.

[0004] According to an embodiment of the utility model, an integrated production device for a battery housing with an explosion-proof sheet is provided, including: an unwinding device, a stamping device, a first welding device, a roll bending device, a second welding device, and a slitting device arranged in sequence. The unwinding device is used for conveying a strip. The strip between two adjacent devices among the unwinding device, the stamping device, the first welding device, and the roll bending device is in a slack state. Along the conveying direction of the strip, a pulling device is provided at the downstream ends of both the stamping device and the first welding device, and the pulling device is used for conveying the strip; the stamping device can cut an explosion-proof hole in the strip, the first welding device can weld an explosion-proof sheet to the explosion-proof hole, the roll bending device is provided with a plurality of bending rollers, and the plurality of bending rollers are connected with a driving device. When the plurality of bending rollers rotate, the strip can be gradually roll bent into a tubular material with a rectangular cross-section. The outer wall of the tubular material has a first gap, and the second welding device is used for welding and filling the first gap; the slitting device is provided with a cutting table, and the cutting table can cut the tubular material into individual housings, and the cutting table can move along the conveying direction of the strip.

[0005] The integrated production equipment of a battery case with an explosion-proof sheet according to the present utility model has at least the following beneficial effects: In this embodiment, there are a unwind device, a stamping device, a first welding device, a roll bending device, a second welding device and a slitting device arranged in sequence. The unwind device is used to convey a strip of material. The stamping device cuts out an explosion-proof hole in the material. The first welding device welds the explosion-proof sheet to the explosion-proof hole. A plurality of bending rollers of the roll bending device rotate to gradually roll the strip of material into a tubular material with a rectangular cross-section. The tubular material has a first gap. The second welding device is used for welding and filling the first gap. The slitting device is provided with a cutting table, and the cutting table is used to cut the tubular material into individual cases, so as to complete the production of the battery case with an explosion-proof sheet. The strip of material between two adjacent devices among the unwind device, the stamping device, the first welding device and the roll bending device is in a slack state. By having the strip of material between two adjacent devices in a slack state, the stamping device and the first welding device have sufficient processing time, so that the equipment can sequentially unwind the strip of material, punch the explosion-proof hole, weld the explosion-proof sheet, roll and form, and perform welding after forming without stopping. Along the conveying direction of the strip of material, pullers are provided at the downstream ends of both the stamping device and the first welding device, so that the strip of material can be conveyed to the next device for processing after being processed by the stamping device and the first welding device. Through the pullers and the bending rollers of the roll bending device, the strip of material is conveyed to the next device after being processed by a single device, so that the processing between each device is continuous. By enabling the cutting table to move along the conveying direction of the strip of material when cutting an individual case, the equipment can cut an individual case without stopping, realizing that each device can process and produce the battery case with an explosion-proof sheet without stopping, and enabling the integrated production equipment of a battery case with an explosion-proof sheet in the present utility model to produce the battery case in a one-line flow, saving the labor input during equipment conversion and improving production efficiency.

[0006] According to the integrated production equipment of a battery case with an explosion-proof sheet of the present utility model, along the height direction, the two side walls of the tubular material are a first side wall and a second side wall, the explosion-proof sheet is located on the first side wall, the first gap is located on the second side wall, and the two wall surfaces of the tubular material along its width direction are a third side wall and a fourth side wall.

[0007] According to the integrated production equipment of a battery case with an explosion-proof sheet of the present utility model, the roll bending device includes a pre-adjustment assembly, a shaping assembly and a forming assembly arranged in sequence. The pre-adjustment assembly is used to roll the two sides of the strip of material to form side edges. The shaping assembly is used to gradually roll the strip of material to form the third side wall and the fourth side wall. The forming assembly is used to roll the strip of material to form the tubular material.

[0008] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, wherein the shaping assembly includes a first assembly and a second assembly. The first assembly is used to adjust the angles between the third side wall and the fourth side wall and the first side wall respectively, and the second assembly is used to adjust the angles between the two side edges and the third side wall and the fourth side wall respectively.

[0009] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, wherein the cutting table is provided with a frame, and the bottom of the frame is provided with a plurality of sliders. The slitting device is provided with a guide rail, and the guide rail is arranged along the conveying direction of the strip. The sliders can move along the guide rail.

[0010] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, wherein a sawing knife is provided on the frame, and the sawing knife can cut the tubular material.

[0011] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, wherein a conveying table is slidably installed on the frame, and a pressing rod is fixedly installed on the conveying table. The conveying table moves along the width direction of the frame, so that the pressing rod drives the tubular material to move towards the sawing knife, and the sawing knife cuts the tubular material.

[0012] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, wherein a plurality of conveying rollers are rotatably connected to the conveying table, and the plurality of conveying rollers are arranged at intervals along the conveying direction of the strip. The conveying rollers can convey the tubular material.

[0013] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, along the conveying direction of the strip, feeders are respectively provided at the upstream ends of the stamping device and the first welding device. The stamping device is located between the pulling device and the feeder, and the first welding device is located between the pulling device and the feeder. The strip between the feeder and the pulling device is in a straightened state.

[0014] An integrated production device for a battery case with an explosion-proof sheet according to the present utility model, wherein the first welding device includes a vibrating disk, a feeding device and a first welding machine. The vibrating disk is provided with a feeding track, and the vibrating disk can arrange a plurality of the explosion-proof sheets on the feeding track. The feeding device can clamp and transfer a single explosion-proof sheet to the explosion-proof hole, and the first welding machine can weld the explosion-proof sheet to the explosion-proof hole.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. Brief Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0017] Figure 1 Front view of an integrated production device for a battery housing with an explosion-proof sheet in an embodiment of the present utility model;

[0018] Figure 2 Cross-sectional view of a tubular material in an embodiment of the present utility model;

[0019] Figure 3 Processing schematic diagram of a roll folding device in an embodiment of the present utility model;

[0020] Figure 4 Axonometric view of a slitting device in an embodiment of the present utility model;

[0021] Figure 5 is Figure 4 Partial enlarged view of part A in;

[0022] Figure 6 Top view of a slitting device in an embodiment of the present utility model;

[0023] Figure 7 is Figure 6 Cross-sectional view taken along B-B in;

[0024] Figure 8 is Figure 7 Partial enlarged view of part C in;

[0025] Figure 9 Cross-sectional view of a material pulling device in an embodiment of the present utility model;

[0026] Figure 10 Axonometric view of a stamping device in an embodiment of the present utility model;

[0027] Figure 11 Axonometric view of a first welding device in an embodiment of the present utility model;

[0028] Figure 12 Axonometric view of a second welding device in an embodiment of the present utility model.

[0029] Reference Numerals:

[0030] Unwinding device 100;

[0031] Stamping device 200; Material pulling device 210; Second leveling roller 211; Feeding device 220;

[0032] First welding device 300; Vibratory bowl 310; Feeding track 311; Feeding device 320; First welding machine 330; Lifting assembly 340; Lifting block 341; Lifting rod 342;

[0033] Roll folding device 400; bending roller 401; pre-adjustment assembly 410; shaping assembly 420; first assembly 421; second assembly 422; first adjusting roller 423; second adjusting roller 424; forming assembly 430;

[0034] Second welding device 500;

[0035] Slitting device 600; guide rail 610; cutting table 620; frame 621; slider 622; guide rod 623; limit plate 624; saw blade 630; conveying table 640; pressing rod 641; conveying roller 642; first pulley 643; second pulley 644;

[0036] Strip 700; explosion-proof hole 701; tubular material 710; first gap 711; first side wall 712; second side wall 713; third side wall 714; fourth side wall 715; side edge 716;

[0037] Explosion-proof sheet 800. Detailed implementation mode

[0038] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0039] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0042] Referring to Figures 1 to 3 , an embodiment of the present utility model provides an integrated production device for a battery housing with an explosion-proof sheet, which includes an unwinding device 100, a stamping device 200, a first welding device 300, a roller bending device 400, a second welding device 500, and a slitting device 600 arranged in sequence. The unwinding device 100 is used to unwind a whole roll of strip material 700. The stamping device 200 is used to punch an explosion-proof hole 701 in the strip material 700. The first welding device 300 is used to weld the explosion-proof sheet 800 to the explosion-proof hole 701. The roller bending device 400 is provided with a plurality of bending rollers 401, and the bending rollers 401 are connected with a driving device. When the bending rollers 401 rotate, the strip material 700 can be gradually roller bent into a tubular material 710 with a rectangular cross-section. The outer wall of the tubular material 710 has a first gap 711. The second welding device 500 is used for welding and filling the first gap 711. The slitting device 600 is provided with a cutting table 620, and the cutting table 620 is used to cut the tubular material 710 into individual housings. By passing the strip material 700 through the unwinding device 100, the stamping device 200, the first welding device 300, the roller bending device 400, the second welding device 500, and the slitting device 600 in sequence, the production of the battery housing with the explosion-proof sheet 800 is completed.

[0043] The strip 700 between two adjacent devices among the unwinding device 100, the stamping device 200, the first welding device 300 and the roll bending device 400 is in a relaxed state, and the strip 700 at both ends of the stamping device 200 is in a relaxed state, so that the stamping device 200 can have enough time to punch explosion-proof holes 701 in the strip 700. The strip 700 at both ends of the first welding device 300 is in a relaxed state, so that the first welding device 300 can have enough time to weld the explosion-proof sheet 800 to the strip 700, so that the unwinding device 100, the stamping device 200, and the first welding device 300 can unwind the strip 700, punch the explosion-proof holes 701, and weld the explosion-proof sheet 800 without stopping the machine, improving production efficiency. A puller 210 is provided at the downstream end of the stamping device 200. After the strip 700 is processed by the stamping device 200, the puller 210 conveys the strip 700 between the stamping device 200 and the first welding device 300. A puller 210 is provided at the downstream end of the first welding device 300. After the strip 700 is processed by the first welding device 300, the puller 210 conveys the strip 700 between the first welding device 300 and the roll bending device 400, so that the processing between the devices is continuous. Through the puller 210 and the bending roller 401 of the roll bending device 400, the strip 700 is conveyed between the devices, so that the strip 700 flows through each device for processing. When the cutting table 620 cuts a single housing, the cutting table 620 can move along the conveying direction of the tubular material 710, so that the tubular material 710 can be cut into single housings without stopping the machine. Due to the strip 700 between two adjacent devices being in a relaxed state, and the cutting table 620 can move along the conveying direction of the tubular material 710, it is realized that an integrated production device for a battery housing with an explosion-proof sheet in the embodiment of the present invention can produce battery housings in a one-line flow, without manually transferring materials between various devices, reducing the input of manual labor and improving production efficiency.

[0044] Referring to Figure 2 , in some embodiments of the present invention, along the height direction, the two side walls of the tubular material 710 are the first side wall 712 and the second side wall 713, the explosion-proof sheet 800 is located on the first side wall 712, the first gap 711 is located on the second side wall 713, and the two side walls of the tubular material 710 along its width direction are the third side wall 714 and the fourth side wall 715. Since the first gap 711 is located on the second side wall 713, compared with the first gap 711 being located at the connection of the two side walls, it is beneficial for the second welding device 500 to weld the first gap 711, reducing the welding difficulty.

[0045] Referring to Figure 2 and Figure 3, in some embodiments of the present utility model, the roll bending device 400 includes a pre-adjustment assembly 410, a shaping assembly 420 and a forming assembly. The pre-adjustment assembly 410 is used to roll bend the two sides of the strip 700 to form side edges 716, and the two side edges 716 form the second side wall 713. The shaping assembly 420 is used to gradually roll bend the strip 700 to form the third side wall 714 and the fourth side wall 715. The forming assembly is used to roll bend the strip 700 into a tubular material 710, so as to gradually roll bend the strip 700 into a tubular material 710 with a rectangular cross-section.

[0046] It can be understood that the angle between the side edge 716 roll bent by the pre-adjustment assembly 410 and the strip 700 is greater than 90°, so as to prevent the side edge 716 from affecting the processing of the third side wall 714 and the fourth side wall 715 in the subsequent processing.

[0047] Referring to Figure 3 , it can be understood that the shaping assembly 420 includes a first assembly 421 and a second assembly 422. The first assembly 421 is used to adjust the angles between the third side wall 714 and the fourth side wall 715 and the first side wall 712 respectively. The second assembly 422 is used to adjust the angles between the two side edges 716 and the third side wall 714 and the fourth side wall 715 respectively. The second assembly 422 can also further adjust the angles between the third side wall 714 and the fourth side wall 715 and the first side wall 712 respectively, so as to gradually roll bend and adjust the shape of the strip 700.

[0048] It can be understood that the first assembly 421 can be two bending rollers 401 arranged along the height direction of the strip 700. Since the bending rollers 401 have inclined surfaces, the angles of the third side wall 714 and the fourth side wall 715 are roll bent by the inclined surfaces of the bending rollers 401. The first assembly 421 can also be two bending rollers 401 arranged along the height direction of the strip 700 respectively pressing against the two surfaces of the second side wall 713, and two first adjusting rollers 423 are arranged along the width direction of the strip 700. The first adjusting rollers 423 rotate around the height direction of the strip 700. The first adjusting rollers 423 have trapezoidal cross-sections, and the angles of the third side wall 714 and the fourth side wall 715 are roll bent by the first adjusting rollers 423.

[0049] It can be understood that the second component 422 is provided with a second adjusting roller 424 and two first adjusting rollers 423. The second adjusting roller 424 and a bending roller 401 are arranged at intervals in the height direction of the strip 700. The bending roller 401 rolls and bends the first side wall 712, and the second adjusting roller 424 simultaneously rolls and bends the two side edges 716 to adjust the angles between the two side edges 716 and the third side wall 714 and the fourth side wall 715 respectively. The two first adjusting rollers 423 are arranged at intervals along the width direction of the strip 700. The first adjusting roller 423 is used to roll and bend the third side wall 714 and the fourth side wall 715 to further adjust the angles of the third side wall 714 and the fourth side wall 715 relative to the first side wall 712 respectively, and the shape of the strip 700 is further adjusted through the second component 422.

[0050] It can be understood that the number of the first components 421 can be multiple. The shapes of the bending rollers 401 and the first adjusting rollers 423 between the multiple first components 421 are different to gradually adjust the angles between the third side wall 714 and the fourth side wall 715 and the first side wall 712 respectively, so as to improve the material properties of the tubular material 710. The number of the first components 421 can be selected according to actual production, and the present application does not make any limitation here.

[0051] It can be understood that the number of the second components 422 can be multiple. The shapes of the first adjusting rollers 423 and the second adjusting rollers 424 between the multiple second components 422 are different to gradually adjust the angles of the side edges 716, the third side wall 714 and the fourth side wall 715, so as to improve the material properties of the tubular material 710. The number of the second components 422 can be selected according to actual production, and the present application does not make any limitation here.

[0052] Referring to Figure 4 and Figure 7 , optionally, the cutting table 620 is provided with a frame 621. A plurality of sliders 622 are provided at the bottom of the frame 621. The slitting device 600 is provided with a guide rail 610. The guide rail 610 is arranged along the conveying direction of the strip 700. The slider 622 can move along the guide rail 610 to drive the cutting table 620 to be arranged along the conveying direction of the strip 700, so that when the cutting table 620 cuts a single shell, it can move along with the conveying of the strip 700.

[0053] Referring to Figure 4 , optionally, a sawing knife 630 is provided on the frame 621. The sawing knife 630 is connected with a driving device. The driving device drives the sawing knife 630 to rotate to cut the tubular material 710, so as to cut the tubular material 710 into individual shells.

[0054] Referring to Figure 5 , Figure 6 and Figure 7, optionally, a conveying table 640 is slidably mounted on the frame 621. A pressing rod 641 is fixedly mounted on the conveying table 640. The conveying table 640 can move along the width direction of the frame 621, so that the pressing rod 641 drives the tubular material 710 to move towards the sawing blade 630, so that the sawing blade 630 cuts the tubular material 710 into individual shells. It can be understood that when the pressing rod 641 drives the tubular material 710 to move, the tubular material 710 deforms along the conveying direction of the tape 700. The tubular material 710 between the second welding device 500 and the slitting device 600 has a preset length, so that the deformation of the tubular material 710 along the conveying direction of the tape 700 does not affect the processing of the second welding device 500.

[0055] Refer to Figure 5 and Figure 8 , optionally, guide rods 623 are provided on the frame 621 along its width direction. Two limit plates 624 are provided on the side wall of the guide rod 623. The two limit plates 624 are located at both ends of the guide rod 623. The conveying table 640 is rotatably connected with a first pulley 643 and a second pulley 644. The first pulley can slide along the width direction of the frame 621 on the upper surface of the guide rod 623. The second pulley 644 can slide along the side wall of the guide rod 623. The second pulley 644 slides between the two limit plates 624 to limit the sliding distance of the conveying table 640; by the first pulley 643 can slide on the guide rod 623, the conveying table 640 can be realized to move along the width direction of the frame 621.

[0056] Refer to Figure 7 and Figure 8 , the conveying table 640 is rotatably connected with a plurality of conveying rollers 642. The plurality of conveying rollers 642 are arranged at intervals along the conveying direction of the tape 700. The conveying rollers 642 are used to convey the tubular material 710 to reduce the friction between the tubular material 710 and the conveying table 640 to protect the tubular material 710.

[0057] Refer to Figures 9 to 11, optionally, along the conveying direction of the strip 700, a feeder 220 is provided at the upstream end of the stamping device 200. The feeder 220 is rotatably connected with two first flattening rollers. A gap is formed between the two first flattening rollers for the strip 700 to pass through. The pulling device 210 is rotatably connected with two second flattening rollers 211. The two second flattening rollers 211 are arranged along the height direction of the pulling device 210. A gap is formed between the two second flattening rollers 211 for the strip 700 to pass through. The second flattening roller 211 is connected with a driving device so that the rotation of the second flattening roller 211 can convey the strip 700. The stamping device 200 is located between the pulling device 210 and the feeder 220. The strip 700 between the feeder 220 and the pulling device 210 is in a straightened state to ensure the quality of punching the explosion-proof hole 701. After the stamping device 200 finishes punching the explosion-proof hole 701, the pulling device 210 at the downstream end of the stamping device 200 conveys the strip 700, conveys the strip 700 that has completed the punching process to between the stamping device 200 and the first welding device 300, and at the same time conveys the strip 700 to be processed to the stamping device 200, so as to realize punching the explosion-proof hole 701 without stopping the machine and improve the production efficiency.

[0058] Optionally, a feeder 220 is provided at the upper end of the first welding device 300. The first welding device 300 is located between the feeder 220 and the pulling device 210. The strip 700 between the feeder 220 and the pulling device 210 is in a straightened state to ensure the quality of welding the explosion-proof sheet 800. Through the cooperation of the feeder 220 and the pulling device 210, the explosion-proof sheet 800 is welded without stopping the machine, and the production efficiency is improved.

[0059] Referring to Figure 11 , optionally, the first welding device 300 includes a vibrating bowl 310, a feeding device 320 and a first welding machine 330. The vibrating bowl 310 is provided with a feeding track 311. The vibrating bowl 310 arranges a plurality of explosion-proof sheets 800 on the feeding track 311 through vibration. The feeding device 320 clamps and transfers the explosion-proof sheet 800 on the feeding track 311 to the explosion-proof hole 701. The first welding machine 330 welds the explosion-proof sheet 800 to the explosion-proof hole 701, so as to realize the welding of the explosion-proof sheet 800 to the explosion-proof hole 701.

[0060] It can be understood that the feeding device 320 can be a mechanical structure such as a combination of a manipulator, a robotic arm and a pneumatic fixture. The feeding device can clamp the explosion-proof sheet 800 and convey the explosion-proof sheet 800 to the explosion-proof hole 701. This application does not make any limitations here.

[0061] Referring to Figure 11, optionally, the first welding machine 330 is a laser welding machine. The first welding machine 330 is connected to the lifting assembly 340. The lifting assembly 340 includes a lifting block 341 and a lifting rod 342. The lifting rod 342 is arranged along the height direction of the first welding device 300. The lifting block 341 is slidably connected to the lifting rod 342. The lifting block 341 can move along the height direction of the lifting rod 342. The first welding machine 330 is connected to the lifting block 341. The lifting block 341 drives the first welding machine 330 to move along the height direction of the first welding device 300 to adjust the welding focal length of the first welding machine 330, so as to ensure the welding quality of the explosion-proof film 800, and further adapt to the welding of explosion-proof films 800 of different sizes, and improve the applicability of the first welding device 300.

[0062] Referring to Figure 12 , optionally, the second welding device 500 is a laser welding machine. The second welding device 500 is connected to the lifting assembly 340 to adjust the welding focal length of the second welding device 500, ensure the welding of the first gap 711, and adapt to the welding of tubular materials 710 of different sizes, and improve the applicability of the second welding device 500.

[0063] It can be understood that the driving device can be a driving component such as a motor or a cylinder, and can be selected according to actual production applications. The present application does not limit this here.

[0064] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An integrated production device for a battery housing with an explosion-proof sheet, characterized in that, Including: An unwinding device, a stamping device, a first welding device, a roll bending device, a second welding device and a slitting device arranged in sequence. The unwinding device is used to convey a strip. The strip between two adjacent devices among the unwinding device, the stamping device, the first welding device and the roll bending device is in a slack state. Along the conveying direction of the strip, a pulling device is provided at the downstream ends of both the stamping device and the first welding device, and the pulling device is used to convey the strip; The stamping device can cut out explosion-proof holes on the strip. The first welding device can weld an explosion-proof sheet to the explosion-proof holes. The roll bending device is provided with a plurality of bending rollers, and the plurality of bending rollers are connected with a driving device. When the plurality of bending rollers rotate, the strip can be gradually roll bent into a tubular material with a rectangular cross-section. The outer wall of the tubular material has a first gap, and the second welding device is used for welding and filling the first gap; The slitting device is provided with a cutting table, and the cutting table can cut the tubular material into individual shells, and the cutting table can move along the conveying direction of the strip.

2. The integrated production equipment of a battery case with an explosion-proof sheet according to claim 1, characterized in that: In the height direction, the two side walls of the tubular material are a first side wall and a second side wall. The explosion-proof sheet is located on the first side wall, and the first gap is located on the second side wall. The two wall surfaces of the tubular material in its width direction are a third side wall and a fourth side wall.

3. An integrated production device for a battery housing with an explosion-proof sheet according to claim 2, characterized in that: The roll bending device includes a pre-adjustment component, a shaping component and a forming component arranged in sequence. The pre-adjustment component is used to roll bend the two sides of the strip to form side edges. The shaping component is used to gradually roll bend the strip to form the third side wall and the fourth side wall. The forming component is used to roll bend the strip into the tubular material.

4. An integrated production device for a battery case with an explosion-proof film according to claim 3, characterized in that: The shaping component includes a first component and a second component. The first component is used to adjust the angles of the third side wall and the fourth side wall with respect to the first side wall respectively. The second component is used to adjust the angles of the two side edges with respect to the third side wall and the fourth side wall respectively.

5. An integrated production device for a battery housing with an explosion-proof film according to claim 1, characterized in that: The cutting table is provided with a frame, and the bottom of the frame is provided with a plurality of sliders. The slitting device is provided with a guide rail, and the guide rail is arranged along the conveying direction of the strip. The sliders can move along the guide rail.

6. An integrated production device for a battery housing with an explosion-proof sheet according to claim 5, characterized in that: A sawing knife is provided on the frame, and the sawing knife can cut the tubular material.

7. An integrated production device for a battery housing with an explosion-proof sheet, characterized in that: A conveying table is slidably installed on the frame. A pressing rod is fixedly installed on the conveying table. The conveying table moves along the width direction of the frame so that the pressing rod drives the tubular material to move towards the sawing knife, and the sawing knife cuts the tubular material.

8. An integrated production device for a battery housing with an explosion-proof sheet, characterized in that: The conveying table is rotatably connected with a plurality of conveying rollers, and the plurality of conveying rollers are arranged at intervals along the conveying direction of the strip. The conveying rollers can convey the tubular material.

9. An integrated production device for a battery housing with an explosion-proof sheet according to claim 1, characterized in that: Along the conveying direction of the strip, feeding devices are respectively provided at the upstream ends of the stamping device and the first welding device. The stamping device is located between the pulling device and the feeding device. The first welding device is located between the pulling device and the feeding device. The strip between the feeding device and the pulling device is in a straightened state.

10. An integrated production device for a battery housing with an explosion-proof sheet, characterized in that: The first welding device includes a vibrating bowl, a feeding device and a first welding machine. The vibrating bowl is provided with a feeding track. The vibrating bowl can arrange a plurality of the explosion-proof sheets on the feeding track. The feeding device can pick up a single explosion-proof sheet and transfer it to the explosion-proof hole. The first welding machine can weld the explosion-proof sheet to the explosion-proof hole.

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