Battery module strapping steel strip leveling device and lithium battery production equipment

Abstract

The utility model provides a battery module bundling steel belt leveling device and lithium battery production equipment. The battery module strapping steel belt leveling device comprises a strapping steel belt conveying base and a strapping steel belt leveling assembly. The strapping steel belt leveling assembly comprises a steel belt welding salient point stamping part and a steel belt leveling part; the steel belt leveling part comprises a steel belt leveling telescopic motor and a steel belt leveling rod, the telescopic end of the steel belt leveling telescopic motor is connected with the steel belt leveling rod, and the steel belt leveling rod and the stamping end of the steel belt welding protruding point stamping part are oppositely arranged with the bundling steel belt as the central axis. After the strapping steel belt is stamped, the strapping steel belt forms a bent welding area due to stamping, and when the strapping steel belt is conveyed to be aligned with the steel belt leveling rod, the steel belt leveling telescopic motor pulls the steel belt leveling rod through stretching out and drawing back, so that the bent part of the strapping steel belt recovers to be flat, and manual leveling is not needed. And the production efficiency of the strapping steel belt is effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of batteries, and particularly to a leveling device for a bundling steel belt of a battery module and a lithium battery production device. Background Art

[0002] Lithium batteries have advantages such as high power density, high energy density, and low self-discharge rate, making them an ideal choice for various applications from small portable electronic devices to large-scale energy storage systems. Multiple single cells are arranged side by side to form a battery aggregate. Two battery end plates and two battery side plates fixedly connected together enclose a frame for accommodating and fixing the battery aggregate, and the battery aggregate is placed inside the frame to form a battery module. Each battery pack is composed of several battery modules, and each battery module is composed of several battery cells. Different battery cells adopt different fixing methods when forming the module. For the grouping of square shell or soft-pack batteries, steel belts are usually used to fix the battery pack. The battery cells in each module are bundled together with a steel belt, which is convenient for grouping and can also adapt to the expansion phenomenon generated by the battery cells during charging and discharging.

[0003] However, traditional steel belts form a bundling belt by using a butt-welded convex point method at the head and tail ends, that is, the head and tail ends of the steel belt are stamped to form convex points. During the process of forming convex points on the steel belt, different degrees of bending are easily caused, and it is necessary to manually flatten the bending of the steel belt at the convex point position, resulting in low production efficiency of the steel belt. Summary of the Utility Model

[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a leveling device for a bundling steel belt of a battery module and a lithium battery production device that can effectively improve the production efficiency of the bundling steel belt.

[0005] The purpose of the present disclosure is achieved through the following technical solutions:

[0006] A leveling device for a bundling steel belt of a battery module includes: a bundling steel belt conveying base and a bundling steel belt leveling assembly; the bundling steel belt leveling assembly includes a steel belt welding convex point stamping part and a steel belt leveling part. The steel belt welding convex point stamping part is arranged on the bundling steel belt conveying base, and the steel belt welding convex point stamping part has a convex point stamping transmission hole for transmitting the bundling steel belt to stamp a welding area with welding convex points on the bundling steel belt. The steel belt leveling part includes a steel belt leveling telescopic motor and a steel belt flattening rod. The steel belt leveling telescopic motor is arranged on the bundling steel belt conveying base, the telescopic end of the steel belt leveling telescopic motor is connected to the steel belt flattening rod, and the steel belt flattening rod and the stamping end of the steel belt welding convex point stamping part are arranged opposite to each other with the bundling steel belt as the central axis. The steel belt flattening rod is used to squeeze and level the welding area of the bundling steel belt.

[0007] In one embodiment, the steel belt flattening member further includes a flattening fixing block, the flattening fixing block is connected to the telescopic end of the steel belt flattening telescopic motor, and the steel belt flattening rod is disposed on the flattening fixing block.

[0008] In one embodiment, the steel belt flattening rod is movably connected to the flattening fixing block, and the moving direction of the steel belt flattening rod is parallel to the conveying direction of the bundling steel belt.

[0009] In one embodiment, the flattening fixing block is provided with a flattening adjustment hole, and a part of the steel belt flattening rod is slidably disposed in the flattening adjustment hole.

[0010] In one embodiment, the flattening adjustment hole is an oval hole.

[0011] In one embodiment, the battery module bundling steel belt flattening device further includes a welding bump collecting component, the welding bump collecting component is disposed on the bundling steel belt conveying base, and the welding bump collecting component is used for collecting the welding bump images of the bundling steel belt.

[0012] In one embodiment, the welding bump collecting component includes a mounting bracket and a welding bump camera, the mounting bracket is disposed on the bundling steel belt conveying base, the welding bump camera is connected to the mounting bracket, and the welding bump camera faces the side of the bundling steel belt.

[0013] In one embodiment, the projection of the welding bump camera on the bundling steel belt conveying base is located on the telescopic track of the steel belt flattening rod.

[0014] In one embodiment, the welding bump collecting component further includes a baffle, the baffle is respectively connected to the mounting bracket and the welding bump camera, the baffle is located on the side of the welding bump camera away from the bundling steel belt conveying base, and the steel belt flattening rod is located within the projection of the baffle on the bundling steel belt conveying base.

[0015] A lithium battery production device includes the battery module bundling steel belt flattening device according to any one of the embodiments.

[0016] Compared with the prior art, the present disclosure has at least the following advantages:

[0017] After the strapping steel belt is stamped, welding bumps are formed on the strapping steel belt. At this time, the strapping steel belt forms a bent welding area due to stamping. When the strapping steel belt is conveyed to align with the steel belt flattening rod, the steel belt flattening telescopic motor pulls the steel belt flattening rod through telescoping, so that the steel belt flattening rod faces and presses the welding area, thereby making the bent part of the strapping steel belt flat again, eliminating the need for manual leveling and effectively improving the production efficiency of the strapping steel belt. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the battery module strapping steel belt flattening device in one embodiment;

[0020] Figure 2 is Figure 1 Enlarged schematic diagram of the battery module strapping steel belt flattening device shown at A1;

[0021] Figure 3 Schematic diagram of the battery module strapping steel belt flattening device in another embodiment;

[0022] Figure 4 is Figure 3 Enlarged schematic diagram of the battery module strapping steel belt flattening device shown at A2;

[0023] Figure 5 is Figure 3 Enlarged schematic diagram of the battery module strapping steel belt flattening device shown at A3;

[0024] Figure 6 is Figure 3 Enlarged schematic diagram of the battery module strapping steel belt flattening device shown at A4. Detailed Description of the Embodiments

[0025] To facilitate the understanding of the present disclosure, the following will describe the present disclosure more comprehensively with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure content of the present disclosure more thoroughly understood.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this disclosure pertains. The terms used in the description of this disclosure herein are only for the purpose of describing specific implementations and are not intended to limit this disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] This disclosure relates to a device for leveling the bundling steel strip of a battery module. In one embodiment, the device for leveling the bundling steel strip of the battery module includes a bundling steel strip conveying base and a bundling steel strip leveling assembly; the bundling steel strip leveling assembly includes a steel strip welding bump stamping part and a steel strip leveling part. The steel strip welding bump stamping part is arranged on the bundling steel strip conveying base. The steel strip welding bump stamping part has a bump stamping transmission hole for transmitting the bundling steel strip through it to stamp a welding area with welding bumps on the bundling steel strip. The steel strip leveling part includes a steel strip leveling telescopic motor and a steel strip flattening rod. The steel strip leveling telescopic motor is arranged on the bundling steel strip conveying base. The telescopic end of the steel strip leveling telescopic motor is connected to the steel strip flattening rod. The steel strip flattening rod and the stamping end of the steel strip welding bump stamping part are arranged opposite to each other with the bundling steel strip as the central axis. The steel strip flattening rod is used to extrude and level the welding area of the bundling steel strip. After the bundling steel strip is stamped, welding bumps are formed on the bundling steel strip. At this time, the bundling steel strip forms a bent welding area due to stamping. When the bundling steel strip is conveyed to be aligned with the steel strip flattening rod, the steel strip leveling telescopic motor pulls the steel strip flattening rod through telescoping, so that the steel strip flattening rod faces and extrudes the welding area, thereby making the bent part of the bundling steel strip flat again, without manual leveling, effectively improving the production efficiency of the bundling steel strip.

[0029] Please refer to Figure 1 , which is a schematic structural diagram of the device for leveling the bundling steel strip of a battery module according to an embodiment of this disclosure.

[0030] The battery module strapping steel strip leveling device 10 of one embodiment includes a strapping steel strip conveying base 100 and a strapping steel strip leveling assembly 200. The strapping steel strip leveling assembly 200 includes a steel strip welding convex point stamping part 210 and a steel strip leveling part 220. The steel strip welding convex point stamping part 210 is arranged on the strapping steel strip conveying base 100. The steel strip welding convex point stamping part 210 has a convex point stamping transmission hole 202. The convex point stamping transmission hole 202 is used to transmit the strapping steel strip to stamp a welding area with welding convex points on the strapping steel strip. Please refer to Figure 2 The steel strip leveling member 220 includes a steel strip leveling telescopic motor 222 and a steel strip leveling rod 224. The steel strip leveling telescopic motor 222 is disposed on the strapping steel strip conveying base 100, and the telescopic end of the steel strip leveling telescopic motor 222 is connected to the steel strip leveling rod 224. The steel strip leveling rod 224 and the stamping end of the steel strip welding convex point stamping member 210 are disposed opposite to each other with the strapping steel strip as the central axis, and the steel strip leveling rod 224 is used to squeeze and level the welding area of ​​the strapping steel strip.

[0031] In this embodiment, after the strapping steel strap is stamped, welding protrusions are formed on the strapping steel strap. At this time, a bent welding area is formed on the strapping steel strap due to the stamping. When the strapping steel strap is transmitted to be aligned with the steel strap leveling rod 224, the steel strap leveling telescopic motor 222 pulls the steel strap leveling rod 224 through telescoping to make the steel strap leveling rod 224 face and squeeze the welding area, thereby restoring the bent part of the strapping steel strap to be flat without the need for manual leveling, thereby effectively improving the production efficiency of the strapping steel strap.

[0032] In one embodiment, see Figure 2 The steel strip leveling member 220 further includes a leveling fixed block 226, which is connected to the telescopic end of the steel strip leveling telescopic motor 222, and the steel strip leveling rod 224 is disposed on the leveling fixed block 226. In this embodiment, the leveling fixed block 226 is located at the end of the steel strip leveling telescopic motor 222, and the leveling fixed block 226 moves under the strapping steel strip during the telescopic process of the telescopic end of the steel strip leveling telescopic motor 222, so that the steel strip leveling rod 224 on the leveling fixed block 226 approaches or moves away from the welding area of ​​the strapping steel strip, so that the steel strip leveling rod 224 moves smoothly relative to the strapping steel strip, thereby facilitating continuous and stable leveling and extrusion of the welding area of ​​the strapping steel strip.

[0033] Further, the steel belt flattening rod 224 is movably connected to the flattening fixing block 226, and the moving direction of the steel belt flattening rod 224 is parallel to the conveying direction of the bundling steel belt. In this embodiment, the steel belt flattening rod 224 is movable relative to the flattening fixing block 226, that is, the position of the steel belt flattening rod 224 relative to the welding area of the bundling steel belt is adjustable, facilitating the adjustment of the relative position between the steel belt flattening rod 224 and the welding area of the bundling steel belt. The moving direction of the steel belt flattening rod 224 is parallel to the conveying direction of the bundling steel belt. Specifically, the moving direction of the steel belt flattening rod 224 is parallel to the surface of the bundling steel belt, so that when the steel belt flattening rod 224 adjusts its position on the flattening fixing block 226, the acting force for extruding the bundling steel belt can still be evenly distributed, thereby making the flattening extrusion force received by the welding area of the bundling steel belt evenly distributed.

[0034] Furthermore, please refer to Figure 2 , the flattening fixing block 226 is provided with a flattening adjustment hole 204, and a part of the steel belt flattening rod 224 is slidably disposed in the flattening adjustment hole 204. In this embodiment, the flattening adjustment hole 204 is located on the flattening fixing block 226, and a part of the steel belt flattening rod 224 is disposed in the flattening adjustment hole 204. Moreover, a part of the steel belt flattening rod 224 is movable in the flattening adjustment hole 204, enabling the steel belt flattening rod 224 to move along the extending direction of the flattening adjustment hole 204, facilitating the adjustment of the position of the steel belt flattening rod 224, thereby facilitating the adjustment of the relative position relationship between the steel belt flattening rod 224 and the welding area of the bundling steel belt, and further facilitating more precise flattening of the welding area of the bundling steel belt, so as to improve the flatness of the bundling steel belt.

[0035] In another embodiment, the flattening adjustment hole is an oval hole, and the extending direction of the flattening adjustment hole is parallel to the transmission direction of the bundling steel belt, so that the moving direction of the steel belt flattening rod on the flattening adjustment hole is parallel to the surface of the bundling steel belt, facilitating the steel belt flattening rod to stably extrude the welding area of the bundling steel belt.

[0036] In one of the embodiments, please refer to Figure 2, the flatting device 10 for the battery module binding steel strip further includes a welding bump acquisition component 300. The welding bump acquisition component 300 is arranged on the binding steel strip conveying base 100, and is used for acquiring the welding bump images of the binding steel strip. In this embodiment, the welding bump acquisition component 300 is located on the transmission path of the binding steel strip. The welding bump acquisition component 300 acquires the distribution of the welding bumps on the binding steel strip, which is convenient for determining the moving position of the welding area of the binding steel strip, so as to facilitate determining the alignment position relationship between the welding area of the binding steel strip and the steel strip flattening rod 224, and further facilitating the flattening and extrusion of the welding area of the binding steel strip by the steel strip flattening rod 224.

[0037] Further, please refer to Figure 2 , the welding bump acquisition component 300 includes a mounting bracket 310 and a welding bump camera 320. The mounting bracket 310 is arranged on the binding steel strip conveying base 100, and the welding bump camera 320 is connected to the mounting bracket 310. The welding bump camera 320 faces the side of the binding steel strip. In this embodiment, the mounting bracket 310 serves as the fixed mounting component of the welding bump camera 320. The mounting bracket 310 raises the welding bump camera 320 above the binding steel strip, which is convenient for acquiring the images of the welding bumps on the binding steel strip, so as to facilitate determining the alignment of the welding area of the binding steel strip and the steel strip flattening rod 224.

[0038] Furthermore, the projection of the welding bump camera 320 on the binding steel strip conveying base 100 is located on the telescopic trajectory of the steel strip flattening rod 224. In this embodiment, the welding bump camera 320 faces the binding steel strip, so that the image acquisition end of the welding bump camera 320 is directly opposite to the binding steel strip. Moreover, the welding bump camera 320 also has an intersection point with the telescopic trajectory of the steel strip flattening rod 224, so that the welding bump camera 320 and the steel strip flattening rod 224 are adjacent to each other. After the welding bumps in the welding area of the binding steel strip are acquired, it is convenient to drive the steel strip flattening rod 224 to extrude the binding steel strip by the steel strip flattening telescopic motor 222.

[0039] In another embodiment, please refer to Figure 2The welding convex point collection component 300 further includes a baffle 330, which is connected to the mounting bracket 310 and the welding convex point camera 320 respectively, and is located on the side of the welding convex point camera 320 away from the strapping steel belt conveying base 100, and the steel belt leveling rod 224 is located within the projection of the baffle 330 on the strapping steel belt conveying base 100. In this embodiment, the baffle 330 is located above the steel belt leveling rod 224 and the strapping steel belt, and the collection end of the welding convex point camera 320 is located below the baffle 330, so that the probability of foreign matter falling on the strapping steel belt is reduced, avoiding the situation where foreign matter is mistaken for welding convex points, and improving the image collection accuracy of the welding convex point camera 320 on the welding convex points of the strapping steel belt.

[0040] In the actual flattening process of the bundling steel strap, the bundling steel strap needs to be stamped first to form a plurality of welding bumps on the bundling steel strap. Before the bundling steel strap enters the bump stamping transmission hole 202 for stamping, the bundling steel strap needs to remain straight. If the bundling steel strap is bent before entering the bump stamping transmission hole 202 for stamping, it is easy to cause the stamping head of the steel strap welding bump stamping part 210 to fold or offset the bundling steel strap, causing problems such as steel strap overlap or too few bumps at the welding bump position of the bundling steel strap, directly causing the bundling steel strap to be scrapped.

[0041] In order to reduce the scrapping rate of the strapping steel strap after the convex point is stamped, please refer to Figure 3 The battery module bundling steel strip leveling device 10 also includes a steel strip conveyor belt edge leveling component 400. Please refer to Figure 4The steel belt conveyor belt edge leveling assembly 400 includes a belt edge leveling mounting plate 410 and a plurality of belt edge transmission members 420. The belt edge leveling mounting plate 410 is arranged on the strapping steel belt conveying base 100. The belt edge leveling mounting plate 410 is located on the side of the steel belt welding convex point stamping part 210 away from the steel belt leveling member 220. The belt edge leveling mounting plate 410 and the strapping steel belt conveying base 100 are arranged perpendicular to each other. Each of the belt edge transmission members 420 includes a belt edge transmission wheel 422, a belt edge slider 424 and a belt edge adjustment rod 426. The central axis of the belt edge transmission wheel 422 is connected to the belt edge slider 424. The belt edge leveling mounting plate 410 is provided with a plurality of belt edge adjustment holes 402 and a plurality of belt edge through holes 404, each of the belt edge adjustment holes 402 is connected to a belt edge through hole 404, each of the belt edge sliders 424 is slidably disposed in a belt edge adjustment hole 402, each of the belt edge adjustment rods 426 is penetrated in a belt edge through hole 404, and is connected to a corresponding belt edge slider 424, so as to adjust the position of the belt edge slider 424 in the belt edge adjustment hole 402; wherein, the outer periphery of the belt edge transmission wheel 422 is used for slidingly abutting against the side of the bundling steel belt, and a plurality of belt edge transmission wheels 422 are respectively disposed on both sides of the bundling steel belt.

[0042] In this embodiment, the belt edge transmission wheel 422 is arranged on the belt edge slider 424. Under the adjustment of the belt edge adjustment rod 426, the belt edge slider 424 slides in the belt edge adjustment hole 402, so that the belt edge transmission wheel 422 slides relative to the belt edge leveling mounting plate 410, so that the belt edge transmission wheel 422 is toward or away from the side of the strapping steel belt. In addition, multiple belt edge transmission wheels 422 are respectively arranged on both sides of the strapping steel belt. Specifically, multiple belt edge transmission wheels 422 are distributed in two layers on the belt edge leveling mounting plate 410, and two adjacent belt edge transmission wheels 422 are arranged alternately. By adjusting the belt edge adjustment rod 426 up and down, it is convenient to adjust the transmission width of the strapping steel belt between the upper and lower belt edge transmission wheels 422, so that the steel belt transmission belt edge leveling assembly 400 is suitable for strapping steel belts of different widths. Since the outer periphery of the band edge transmission wheel 422 is in sliding contact with the side edge of the bundling steel strip, that is, the side edge of the bundling steel strip is driven to be transmitted through the outer periphery of the band edge transmission wheel 422, before the different bundling steel strips are transmitted to the steel strip welding bump stamping part 210, the band edge transmission wheel 422 flattens the side edge of the bundling steel strip, so that the bundling steel strip remains straight on the side edge, effectively avoiding the problem of deviation of the welding bump when stamping the bump, thereby avoiding the problem of scrapping due to too few welding bumps.

[0043] Further, a belt-edge transmission groove 406 is formed on the outer peripheral edge of the belt-edge transmission wheel 422. The belt-edge transmission groove 406 is used to receive the side edge of the strapping steel belt. Under the transmission of the belt-edge transmission wheel 422, the belt-edge transmission groove 406 limits the side edge of the strapping steel belt, ensuring that the side edge of the strapping steel belt is in a straight state during the transmission process.

[0044] In another embodiment, the belt-edge transmission wheel 422 is used as a driven wheel for transmission, that is, one end of the strapping steel belt is connected to a transmission driver to pull the strapping steel belt.

[0045] In another embodiment, the belt-edge transmission wheel 422 is used as a driving wheel for transmission, that is, the belt-edge transmission wheel 422 is connected to the rotating shaft of a transmission motor to provide transmission kinetic energy for the belt-edge transmission wheel 422.

[0046] In another embodiment, the belt-edge position adjusting rod 426 is a screw rod, the belt-edge through hole 404 is a threaded hole, and the belt-edge position adjusting rod 426 adjusts the position of the belt-edge slider 424 in a spiral manner.

[0047] Furthermore, please refer to Figure 3 and Figure 5 simultaneously. The battery module strapping steel belt leveling device 10 further includes a steel belt transmission belt surface leveling assembly 500. The steel belt transmission belt surface leveling assembly 500 includes a belt surface leveling mounting plate 510 and a plurality of belt surface transmission members 520. The belt surface leveling mounting plate 510 is disposed on the strapping steel belt transmission base 100. The belt surface leveling mounting plate 510 is located between the steel belt welding bump stamping member 210 and the belt-edge leveling mounting plate 410. The belt surface leveling mounting plate 510 and the belt-edge leveling mounting plate 410 are perpendicularly arranged; each belt surface transmission member 520 includes a belt surface transmission wheel 522, a belt surface slider 524, and a belt surface position adjusting rod 526. The central axis of the belt surface transmission wheel 522 is connected to the belt surface slider 524. The belt surface leveling mounting plate 510 is provided with a plurality of belt surface position adjusting holes 502 and a plurality of belt surface through holes 504. Each belt surface position adjusting hole 502 communicates with one belt surface through hole 504. Each belt surface slider 524 is slidably disposed in one belt surface position adjusting hole 502. Each belt surface position adjusting rod 526 is inserted into one belt surface through hole 504 and is connected to the corresponding belt surface slider 524 to adjust the position of the belt surface slider 524 in the belt surface position adjusting hole 502; wherein, the outer peripheral edge of the belt surface transmission wheel 522 is in sliding contact with the surface of the strapping steel belt, and a plurality of belt surface transmission wheels 522 are respectively disposed on both sides of the strapping steel belt.

[0048] In this embodiment, the belt surface transmission wheel 522 is arranged on the belt surface slider 524. Under the adjustment of the belt surface position adjusting rod 526, the belt surface slider 524 slides in the belt surface position adjusting hole 502, so that the belt surface transmission wheel 522 slides relative to the belt surface leveling mounting plate 510, thereby enabling the belt surface transmission wheel 522 to face towards or away from the side edge of the strapping steel belt. Moreover, a plurality of belt surface transmission wheels 522 are respectively arranged on both sides of the strapping steel belt. Specifically, the plurality of belt surface transmission wheels 522 are distributed in upper and lower two layers on the belt surface leveling mounting plate 510, and two adjacent belt surface transmission wheels 522 are arranged staggeredly. Through the up-and-down adjustment of the belt surface position adjusting rod 526, it is convenient to adjust the transmission spacing of the strapping steel belt between the upper and lower belt surface transmission wheels 522, so that the steel belt transmission belt surface leveling assembly 500 is applicable to strapping steel belts of different thicknesses. Since the outer peripheral edge of the belt surface transmission wheel 522 is in sliding contact with the surface of the strapping steel belt, that is, the surface of the strapping steel belt is driven to be transmitted by the outer peripheral edge of the belt surface transmission wheel 522. Before different strapping steel belts are transmitted to the steel belt welding bump stamping part 210, the belt surface transmission wheel 522 levels the surface of the strapping steel belt, so that the strapping steel belt maintains a flat surface in terms of thickness, effectively avoiding the problem of scrapping due to the stacking of steel belts when stamping bumps. Among them, the belt surface leveling mounting plate 510 and the belt edge leveling mounting plate 410 are arranged perpendicular to each other, so that the strapping steel belt can be pre-leveled on its side edge and surface during a single transmission process, without the need to flip and transmit the strapping steel belt, so as to improve the leveling processing efficiency of the strapping steel belt.

[0049] In another embodiment, the belt surface transmission wheel 522 is used as a driven wheel for transmission, that is, one end of the strapping steel belt is connected to a transmission driver to pull the strapping steel belt.

[0050] In another embodiment, the belt surface transmission wheel 522 is used as a driving wheel for transmission, that is, the belt surface transmission wheel 522 is connected to the rotating shaft of a transmission motor to provide transmission kinetic energy for the belt surface transmission wheel 522.

[0051] In another embodiment, the belt surface position adjusting rod 526 is a screw rod, the belt surface through hole 504 is a threaded hole, and the belt surface position adjusting rod 526 adjusts the position of the belt surface slider 524 in a spiral manner.

[0052] Furthermore, please refer to Figure 3 and Figure 6, the leveling device 10 for the battery module bundling steel strip further includes a steel strip conveyor belt surface preloading component 600. The steel strip conveyor belt surface preloading component 600 includes a belt surface preloading mounting plate 610 and a plurality of belt surface preloading members 620. The belt surface preloading mounting plate 610 is disposed on the bundling steel strip conveying base 100. The belt surface preloading mounting plate 610 is located between the steel strip welding bump stamping member 210 and the belt surface leveling mounting plate 510, and the belt surface preloading mounting plate 610 and the belt surface leveling mounting plate 510 are arranged parallel to each other; each of the belt surface preloading members 620 includes a belt surface preloading fixed wheel 622, a belt surface preloading adjusting wheel 624, a belt surface preloading slider 626, a belt surface preloading adjusting rod 628 and a belt surface preloading spring 621. The belt surface preloading fixed wheel 622 and the belt surface preloading adjusting wheel 624 are oppositely arranged. The central axis of the belt surface preloading fixed wheel 622 is fixed on the belt surface preloading mounting plate 610. The central axis of the belt surface preloading adjusting wheel 624 is connected to the belt surface preloading slider 626. The belt surface preloading mounting plate 610 is provided with a plurality of belt surface preloading adjusting holes 602 and a plurality of belt surface preloading through holes (not shown in the figure). Each of the belt surface preloading adjusting holes 602 communicates with a corresponding belt surface preloading through hole. Each of the belt surface sliders 524 is slidably disposed in one of the belt surface preloading adjusting holes 602. Each of the belt surface preloading adjusting rods 628 is inserted through one of the belt surface preloading through holes and is connected to the corresponding belt surface preloading slider 626 to adjust the position of the belt surface preloading slider 626 in the belt surface preloading adjusting hole 602. The belt surface preloading spring 621 is sleeved on the belt surface preloading adjusting rod 628. The belt surface preloading spring 621 is located in the belt surface preloading adjusting hole 602, and the belt surface preloading spring 621 abuts against the inner wall of the belt surface preloading adjusting hole 602 and the belt surface preloading slider 626 respectively; the outer peripheral edges of the belt surface preloading fixed wheel 622 and the belt surface preloading adjusting wheel 624 are both used for slidingly abutting against the surface of the bundling steel strip. A plurality of belt surface preloading fixed wheels 622 are arranged on one side of the bundling steel strip, and a plurality of belt surface preloading adjusting wheels 624 are arranged on the other side of the bundling steel strip.

[0053] In this embodiment, the belt surface pre-pressing adjusting wheel 624 is arranged on the belt surface pre-pressing slider 626. Under the adjustment of the belt surface pre-pressing position adjusting rod 628, the belt surface pre-pressing slider 626 slides in the belt surface position adjusting hole 502, so that the belt surface pre-pressing adjusting wheel 624 slides relative to the belt surface leveling mounting plate 510, thereby enabling the belt surface pre-pressing adjusting wheel 624 to face or move away from the side of the strapping steel belt. Moreover, a plurality of belt surface pre-pressing adjusting wheels 624 and a plurality of belt surface pre-pressing fixing wheels 622 are respectively arranged on both sides of the strapping steel belt. Specifically, the plurality of belt surface pre-pressing adjusting wheels 624 and the plurality of belt surface pre-pressing fixing wheels 622 are distributed in two upper and lower layers on the belt surface leveling mounting plate 510, and the belt surface pre-pressing adjusting wheels 624 and the belt surface pre-pressing fixing wheels 622 are arranged in one-to-one correspondence. Through the up-and-down adjustment of the belt surface pre-pressing position adjusting rod 628, it is convenient to adjust the transmission spacing of the strapping steel belt between the belt surface pre-pressing adjusting wheel 624 and the belt surface pre-pressing fixing wheel 622, so that the steel belt transmission belt surface pre-pressing assembly 600 is applicable to strapping steel belts of different thicknesses. Before different strapping steel belts are transmitted to the steel belt welding bump stamping part 210, the belt surface pre-pressing adjusting wheel 624 and the belt surface pre-pressing fixing wheel 622 simultaneously pre-press the surface of the strapping steel belt, so that the strapping steel belt maintains a flat surface in terms of thickness, effectively avoiding the problem of the steel belt being laminated and scrapped when stamping bumps. Among them, the belt surface pre-pressing spring 621 is accommodated in the belt surface pre-pressing position adjusting hole 602, and the belt surface pre-pressing spring 621 provides elastic force for the belt surface pre-pressing slider 626, so that the pre-pressure of the belt surface pre-pressing adjusting wheel 624 on the strapping steel belt increases, thereby increasing the extrusion force between the belt surface pre-pressing adjusting wheel 624 and the belt surface pre-pressing fixing wheel 622, and further making the surface of the strapping steel belt smoother.

[0054] In another embodiment, the belt surface pre-pressing adjusting wheel 624 and the belt surface pre-pressing fixing wheel 622 are used as driven wheels for transmission, that is, one end of the strapping steel belt is connected to a transmission driver to pull the strapping steel belt.

[0055] In another embodiment, at least one of the belt surface pre-pressing adjusting wheel 624 and the belt surface pre-pressing fixing wheel 622 is used as a driving wheel for transmission, that is, at least one of the belt surface pre-pressing adjusting wheel 624 and the belt surface pre-pressing fixing wheel 622 is connected to the rotating shaft of a transmission motor to provide transmission kinetic energy.

[0056] In another embodiment, the belt surface pre-pressing position adjusting rod 628 is a screw rod, the belt surface pre-pressing through hole is a threaded hole, and the belt surface pre-pressing position adjusting rod 628 adjusts the position of the belt surface pre-pressing slider 626 in a spiral manner.

[0057] In one of the embodiments, the present disclosure also relates to a lithium battery production device, including the battery module bundling steel strip leveling device described in any of the embodiments. In this embodiment, the battery module bundling steel strip leveling device includes a bundling steel strip conveying base and a bundling steel strip leveling assembly; the bundling steel strip leveling assembly includes a steel strip welding bump stamping part and a steel strip leveling part. The steel strip welding bump stamping part is arranged on the bundling steel strip conveying base. The steel strip welding bump stamping part has a bump stamping transmission hole, and the bump stamping transmission hole is used to transmit the bundling steel strip to stamp a welding area with welding bumps on the bundling steel strip; the steel strip leveling part includes a steel strip leveling telescopic motor and a steel strip flattening rod. The steel strip leveling telescopic motor is arranged on the bundling steel strip conveying base, and the telescopic end of the steel strip leveling telescopic motor is connected to the steel strip flattening rod. The steel strip flattening rod and the stamping end of the steel strip welding bump stamping part are arranged opposite to each other with the bundling steel strip as the central axis. The steel strip flattening rod is used to squeeze and level the welding area of the bundling steel strip. After the bundling steel strip is stamped, welding bumps are formed on the bundling steel strip. At this time, the bundling steel strip forms a curved welding area due to stamping. When the bundling steel strip is conveyed to be aligned with the steel strip flattening rod, the steel strip leveling telescopic motor pulls the steel strip flattening rod through telescoping, so that the steel strip flattening rod faces and squeezes the welding area, thereby making the curved part of the bundling steel strip recover to be flat, and there is no need to manually level it again, effectively improving the production efficiency of the bundling steel strip.

[0058] The above-described embodiments merely represent several implementation manners of the present disclosure, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A flatting device for a battery module bundling steel strip, characterized in that include: Strapping steel belt conveyor base, A bundling steel strap leveling component, the bundling steel strap leveling component includes a steel strap welding convex point stamping part and a steel strap leveling part, the steel strap welding convex point stamping part is arranged on the bundling steel strap conveying base, the steel strap welding convex point stamping part has a convex point stamping transmission hole, the convex point stamping transmission hole is used to transmit the bundling steel strap through so as to stamp out a welding area with welding convex points on the bundling steel strap; the steel strap leveling part includes a steel strap leveling telescopic motor and a steel strap leveling rod, the steel strap leveling telescopic motor is arranged on the bundling steel strap conveying base, the telescopic end of the steel strap leveling telescopic motor is connected to the steel strap leveling rod, the steel strap leveling rod and the stamping end of the steel strap welding convex point stamping part are arranged relative to each other with the bundling steel strap as the central axis, and the steel strap leveling rod is used to extrude and flatten the welding area of ​​the bundling steel strap.

2. The battery module strapping steel strip leveling device according to claim 1, characterized in that, The steel belt leveling member also includes a leveling fixed block, which is connected to the telescopic end of the steel belt leveling telescopic motor, and the steel belt leveling rod is arranged on the leveling fixed block.

3. The battery module strapping steel strip leveling device according to claim 2, wherein, The steel belt leveling rod is movably connected to the leveling fixed block, and the moving direction of the steel belt leveling rod is parallel to the conveying direction of the bundling steel belt.

4. The battery module strapping steel strip leveling device according to claim 3, wherein, The leveling fixing block is provided with a leveling adjustment hole, and part of the steel belt leveling rod is slidably arranged in the leveling adjustment hole.

5. The battery module strapping steel strip leveling device according to claim 4, wherein, The leveling and positioning hole is a waist-shaped hole.

6. The leveling device for the battery module bundling steel strip according to claim 1, wherein The battery module bundling steel strip leveling device also includes a welding bump collection component, which is arranged on the bundling steel strip conveying base and is used to collect welding bump images of the bundling steel strip.

7. The battery module strapping steel strip leveling device according to claim 6, wherein The welding bump collection component includes a mounting bracket and a welding bump camera, wherein the mounting bracket is arranged on the bundling steel belt conveying base, the welding bump camera is connected to the mounting bracket, and the welding bump camera faces the side of the bundling steel belt.

8. The battery module strapping steel belt flattening device according to claim 7, wherein, The projection of the welding convex point camera on the strapping steel strap conveying base is located on the telescopic track of the steel strap flattening rod.

9. The battery module strapping steel strip leveling device according to claim 7, characterized in that The welding bump collection assembly also includes a baffle, which is respectively connected to the mounting bracket and the welding bump camera, and the baffle is located on the side of the welding bump camera away from the bundling steel strap conveying base, and the steel strap flattening rod is located within the projection of the baffle on the bundling steel strap conveying base.

10. A lithium battery production device, characterized in that, It comprises a battery module bundling steel strip leveling device as described in any one of claims 1 to 9.

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