Battery gluing and shell entering device

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a battery rubberizing and shell entering device which comprises a battery cell pushing mechanism, a rubberizing alignment mechanism, a battery shell bottom edge limiting block, a battery shell side edge limiting block and a bracket, the battery cell pushing mechanism is mounted in a roller groove of the bracket, and the battery cell pushing mechanism and the bracket realize relative movement through matching of the groove and a roller and are used for pushing a battery cell into a shell; the rubberizing and aligning mechanism is mounted on the surface of the bracket, is fixed and adjusted in position through a threaded hole in the bracket, and is used for rubberizing a battery cell in the process of putting the battery cell into a shell; the battery shell bottom edge limiting block and the battery shell side edge limiting block are both installed on the surface of the support, fixed through threaded holes and used for limiting the position of the battery shell. According to the device, the traditional complicated operation process of manual rubberizing and shell entering is abandoned, and the battery cell pushing mechanism, the rubberizing alignment mechanism and the limiting block cooperatively operate, so that rubberizing and shell entering are completed in one step.

Description

Battery adhesive insertion device Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to a battery adhesive insertion device. Background Technology

[0002] In the lithium-ion battery production process, after the battery cell is coated (Mylar film coating), protective tape needs to be applied to its outer layer to secure the coating, and the cell is then accurately placed into the battery casing (i.e., the casing process). For mass production lines, existing technology already has automated casing devices. However, in pilot production lines, due to the complexity of pilot product models, the variety of sizes, and frequent model changes, mass production line equipment is difficult to meet the needs due to its complex structure, large footprint, and high changeover costs. Therefore, pilot production lines currently generally use manual tape application and casing.

[0003] Manual operation has significant drawbacks:

[0004] 1. The tape needs to be cut manually and pasted on both ends of the bottom of the electrode assembly. Then, the battery cell and battery casing need to be manually picked up and aligned for installation. For battery cells weighing up to 10 kg, manual operation is laborious and time-consuming.

[0005] 2. Manual application of adhesive can easily lead to problems such as misaligned tape and improper application. During installation, the electrode assembly may collide with the battery casing, causing scratches on the Mylar film or damage to the electrode assembly. It may also introduce foreign objects, resulting in defective products.

[0006] 3. Existing automated casing equipment for production lines (such as the cell casing equipment disclosed in CN218385314U) can achieve automated casing, but its structure is complex and the changeover time is long, making it unable to meet the rapid switching requirements of multiple models and sizes in the pilot production line; while auxiliary casing devices (such as the square lithium battery cell casing auxiliary device disclosed in CN214706059U) can only assist in positioning, still requiring manual operation, and do not have the function of applying adhesive, thus failing to solve the core efficiency and quality problems.

[0007] Therefore, developing a device that is structurally simple, easy to operate, allows for rapid model changeover, and can simultaneously complete adhesive application and casing insertion is of great significance for improving production efficiency and ensuring product quality. Summary of the Invention

[0008] The purpose of this utility model is to provide a battery adhesive insertion device to solve the technical problems of complex structure, large space occupation, and high replacement cost in the prior art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] This utility model provides a battery casing applicator, including a cell pushing mechanism, an adhesive alignment mechanism, a bottom edge limiting block for the battery casing, a side edge limiting block for the battery casing, and a bracket. The cell pushing mechanism is installed in the roller groove of the bracket, and the two move relative to each other through the cooperation of the groove and the roller to push the cell into the casing. The adhesive alignment mechanism is installed on the surface of the bracket and is fixed and adjusted in position through the threaded holes on the bracket, and is used to apply adhesive to the cell during the cell casing process. The bottom edge limiting block and the side edge limiting block for the battery casing are both installed on the surface of the bracket and fixed through the threaded holes to limit the position of the battery casing.

[0011] Preferably, the cell pushing mechanism includes a roller, a roller bracket, and a baffle; the roller is mounted on the roller bracket, with two rows of rollers closely arranged, and the rollers cooperate with the roller grooves of the bracket; the baffle is located behind the roller and connected to the roller bracket, and is used to push the remaining part of the cell to complete the insertion into the casing.

[0012] Preferably, the adhesive alignment mechanism includes an adhesive tape, a first connecting rod, a second connecting rod, a tension spring, a first roller, a second roller, and a limiting plate. The adhesive tape is wrapped around the first and second rollers and extends to the adhesive application position. The adhesive tape is installed at one end of the first connecting rod via a pin, which is mounted on a bracket. The other end of the first connecting rod is hinged to the second connecting rod and the first roller. There are two second connecting rods, with the first and second rollers respectively hinged at both ends. The roller shaft of the first roller passes through the second connecting rod and is hinged to the limiting plate. The limiting plate is fixed on the bracket and located on the swing path of the connecting rod to limit the rotation angle of the connecting rod. The tension spring is connected between the first and second connecting rods, and the elastic force of the tension spring controls the second roller to be tightly attached to the side of the electrode assembly.

[0013] Preferably, the limiting plate is fixed to the threaded hole on the bracket by bolts.

[0014] Preferably, the bottom edge limiting block of the battery case is used to limit the vertical position of the battery case, and its top surface contacts the bottom of the battery case to support the bottom of the battery case during the insertion of the electrode assembly into the case; the side edge limiting block of the battery case is used to limit the horizontal position of the battery case, and its side surface contacts the side surface of the battery case to ensure that the electrode assembly and the battery case are accurately aligned.

[0015] Preferably, the bracket surface is provided with threaded holes, and the bottom edge limiting block of the battery case, the side edge limiting block of the battery case, and the adhesive alignment mechanism are all connected to the threaded holes by bolts to achieve position fixation and adjustment, so as to adapt to the adhesive insertion of different models and sizes of electrode groups into the case.

[0016] Preferably, the bracket is provided with a roller groove, and the roller of the battery cell pushing mechanism is placed in the roller groove. The roller can roll in the groove, and the push plate can move forward or backward through the cooperation between the groove and the roller, thereby completing the adhesive insertion into the shell.

[0017] Preferably, there are two roller grooves during the battery cell insertion process.

[0018] Preferably, after the battery case is installed, both the bottom edge limiting block and the side edge limiting block of the battery case are equipped with adjustment grooves for adjusting the position of the bottom edge limiting block and the side edge limiting block of the battery case.

[0019] Preferably, the overall structure of the device is adapted to the battery prototype production line. By adjusting the positions of the bottom edge limiting block, the side edge limiting block, and the adhesive alignment mechanism on the bracket, the adhesive application and casing installation of battery cells of various sizes can be achieved.

[0020] The beneficial effects of this invention are as follows: Firstly, this device eliminates the cumbersome traditional manual adhesive application and casing insertion process. The cell pushing mechanism, adhesive alignment mechanism, and limiting block work together to achieve adhesive application and casing insertion in one step. The cell pushing mechanism, with its closely arranged double-row rollers, can stably support the cell and cleverly guide the battery casing during insertion, working in conjunction with the baffle to complete the efficient casing insertion action. The adhesive alignment mechanism precisely controls the application of the adhesive tape, avoiding problems such as positional deviation and skewing caused by manual adhesive application. At the same time, it assists in aligning the cell and battery casing during the casing insertion process, greatly reducing the risk of electrode collisions and scratches, and significantly improving product yield.

[0021] On the other hand, the adjustable design of the threaded holes, limiting blocks, and adhesive alignment mechanism on the bracket allows it to easily adapt to various sizes and models of battery cells and casings. Compared to the complex, space-consuming, and difficult-to-change casing-fitting equipment used in mass production lines, this device has a simplified structure, occupies less space, is easy to operate, and can be quickly adjusted to meet the needs of frequent model changes on the production line. This greatly reduces production costs, improves production flexibility and adaptability, and provides an efficient and reliable solution for battery trial production. Attached Figure Description

[0022] Figure 1 is a perspective view of this utility model;

[0023] Figure 2 is a schematic diagram of the battery cell driving mechanism in this utility model;

[0024] Figure 3 is a schematic diagram of the adhesive alignment mechanism in this utility model;

[0025] Figure 4 is a structural schematic diagram of the bottom edge limiting block and the side edge limiting block of the battery case in this utility model;

[0026] Figure 5 is a schematic diagram of the support structure in this utility model;

[0027] Figure 6 is a schematic diagram of the protective adhesive applied to the battery cell in this utility model;

[0028] Figure 7 is a diagram showing the working state of this utility model;

[0029] In the picture:

[0030] 1. Cell pushing mechanism; 101. Roller; 102. Roller bracket; 103. Baffle; 2. Cell; 201. Battery cover; 202. Bottom of electrode assembly; 203. Protective tape; 204. Side of electrode assembly; 3. Adhesive alignment mechanism; 301. Tape; 302. First connecting rod; 303. Second connecting rod; 304. Tension spring; 305. First roller; 306. Second roller; 307. Limiting plate; 4. Bottom edge limiting block of battery case; 5. Side edge limiting block of battery case; 7. Bracket; 701. Bracket body; 702. Threaded hole; 703. Roller groove. Detailed Implementation

[0031] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0035] As shown in Figure 1, a battery casing applicator includes a cell pushing mechanism 1, an adhesive alignment mechanism 3, a bottom edge limiting block 4, a side edge limiting block 5, and a bracket 7. The cell pushing mechanism 1 is installed in the roller groove 703 of the bracket 7, and the two move relative to each other through the cooperation of the groove and the roller 101, which is used to push the cell 2 into the casing. The adhesive alignment mechanism 3 is installed on the surface of the bracket 7 and is fixed and adjusted in position through the threaded hole 702 on the bracket 7, which is used to apply adhesive to the cell during the cell casing process. The bottom edge limiting block 4 and the side edge limiting block 5 are both installed on the surface of the bracket 7 and fixed through the threaded hole 702, which are used to limit the position of the battery casing 6.

[0036] Specifically, as shown in Figure 2, the cell pushing mechanism 1 includes:

[0037] Rollers 101: arranged in two close rows to support the battery cells and fit into the battery case.

[0038] Roller bracket 102: Mounts roller 101, which mates with the roller groove 703 of bracket 7.

[0039] Baffle 103: Connected to the rear of roller bracket 102, it pushes the remaining battery cells to complete the insertion into the casing.

[0040] As shown in Figure 3, the adhesive alignment mechanism 3 includes:

[0041] Tape 301: Wrapped around the first roller 305 and the second roller 306, used for applying adhesive to the side of the battery cell.

[0042] First connecting rod 302: One end is hinged to bracket 7 via pin 308, and the other end is hinged to second connecting rod 303 and first roller 305.

[0043] Second link 303: Two parallel links are connected at both ends to the first roller 305 and the second roller 306 respectively, forming a linkage structure.

[0044] Tension spring 304: connects the first link 302 and the second link 303, providing elastic force to keep the roller in close contact with the side of the battery cell.

[0045] Limiting plate 307: Fixed to bracket 7, limiting the rotation angle of second connecting rod 303, ensuring the adhesive application length and positional accuracy.

[0046] As shown in Figure 4, the positioning component includes:

[0047] Battery casing bottom edge limiting block 4: Installed through the threaded hole 702 of bracket 7, it supports the bottom of the battery casing and limits its longitudinal position.

[0048] Battery casing side limiting block 5: Installed through threaded hole 702, it limits the lateral position of the battery casing and ensures alignment with the battery cell.

[0049] As shown in Figure 5, the bracket 7 includes:

[0050] Support body 701;

[0051] Threaded hole 702: Used for installing and adjusting the positions of limit blocks 4 and 5 and adhesive alignment mechanism 3;

[0052] Roller groove 703: Cooperates with roller 101 to guide the linear motion of the battery cell driving mechanism 1.

[0053] Working principle:

[0054] Figure 6 shows a schematic diagram of applying protective tape to the battery cell. The protective tape 203 is L-shaped and is applied starting from the bottom 202 of the electrode assembly and ending at the side 204 of the electrode assembly.

[0055] As shown in Figure 7, the positions of the bottom limiting block 4 and the side limiting block 5 are adjusted through the threaded hole 702 of the bracket 7 according to the size of the battery cell and the battery case, and the battery case 6 is fixed.

[0056] Place the battery cell 2 on the roller 101, and align the opening of the battery case 6 with the battery cell.

[0057] The tension spring 304 is in its natural state, and the second roller 306 is close to the bottom of the battery cell.

[0058] The battery cover 201 is close to the push plate 101, which pushes the roller bracket 102, and the battery cell 2 moves towards the battery casing 6. The second roller 306 rolls at the bottom of the battery cell, and the tape 301 is applied simultaneously.

[0059] As the battery cell is pushed forward, the second connecting rod 303 rotates around the pin, the tension spring 304 is stretched, and the second roller 306 rises along the side of the battery cell and continues to apply adhesive.

[0060] The limiting plate 307 restricts the maximum rotation angle of the second connecting rod 303, ensuring that the adhesive tape 301 is pasted on the side of the battery cell to meet the design requirements.

[0061] When the front end of the battery cell 2 enters the battery casing 6, the roller 101 contacts the upper edge of the battery casing. The double-row roller structure allows the battery casing to be smoothly inserted between the battery cell and the roller.

[0062] Continue pushing the roller bracket 102, and the baffle 103 pushes the remaining part of the battery cell completely into the battery case, completing the casing insertion.

[0063] After the housing is inserted, the roller bracket 102 is released, the tension spring 304 retracts, and the second link 303 and the second roller 306 are pulled back to their original positions.

[0064] Adjusting the positions of the bottom edge limiting block 4, the side edge limiting block 5, and the adhesive alignment mechanism 3 can quickly adapt to the adhesive application and casing requirements of different battery cell models.

[0065] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A battery adhesive bonding and casing device, characterized in that, The device includes a cell pushing mechanism (1), an adhesive alignment mechanism (3), a bottom edge limiting block (4) of the battery case, a side edge limiting block (5) of the battery case, and a bracket (7). The cell pushing mechanism (1) is installed in the roller groove (703) of the bracket (7). The two move relative to each other through the cooperation of the groove and the roller (101) to push the cell (2) into the case. The adhesive alignment mechanism (3) is installed on the surface of the bracket (7) and is fixed and adjusted in position through the threaded hole (702) on the bracket (7). It is used to apply adhesive to the cell during the process of inserting the cell into the case. The bottom edge limiting block (4) and the side edge limiting block (5) of the battery case are both installed on the surface of the bracket (7) and fixed through the threaded hole (702) to limit the position of the battery case (6).

2. The battery adhesive insertion device according to claim 1, characterized in that, The cell pushing mechanism (1) includes a roller (101), a roller bracket (102), and a baffle (103); the roller (101) is mounted on the roller bracket (102), with two rows of rollers (101) arranged closely together, and the roller (101) cooperates with the roller groove (703) of the bracket (7); the baffle (103) is located behind the roller (101) and connected to the roller bracket (102), and is used to push the remaining part of the cell to complete the insertion into the casing.

3. The battery adhesive insertion device according to claim 1, characterized in that, The adhesive application alignment mechanism (3) includes an adhesive tape (301), a first connecting rod (302), a second connecting rod (303), a tension spring (304), a first roller (305), a second roller (306), and a limiting plate (307); the adhesive tape (301) is wrapped around the first roller (305) and the second roller (306) and extends to the adhesive application position; the adhesive tape (301) is mounted on one end of the first connecting rod (302) by a pin, the pin is mounted on the bracket (7), and the other end of the first connecting rod (302) is connected to the second connecting rod (303) and the first connecting rod (304). A roller (305) is hinged, and the second connecting rod (303) consists of two rods, with the first roller (305) and the second roller (306) respectively hinged at both ends. The roller shaft of the first roller passes through the second connecting rod and is hinged to the limiting plate. The limiting plate is fixed on the bracket (7) and located on the swing path of the connecting rod (302) to limit the rotation angle of the connecting rod (302). The tension spring (303) is connected between the first connecting rod (302) and the second connecting rod (303). The elastic force of the tension spring (303) controls the second roller (306) to be close to the side of the pole group.

4. The battery adhesive insertion device according to claim 3, characterized in that, The limiting plate (304) is fixed to the threaded hole on the bracket by bolts.

5. The battery gluing and casing device according to claim 1, wherein, The bottom edge limiting block (4) of the battery case is used to limit the vertical position of the battery case (6), and its top surface contacts the bottom of the battery case (6) to support the bottom of the battery case (6) during the insertion of the electrode assembly; the side edge limiting block (5) of the battery case is used to limit the horizontal position of the battery case (6), and its side surface contacts the side surface of the battery case (6) to ensure that the electrode assembly and the battery case (6) are accurately aligned.

6. The battery adhesive insertion device according to claim 1, characterized in that, The bracket (7) has a threaded hole (702) on its surface. The bottom edge limiting block (4), the side edge limiting block (5) of the battery case and the adhesive alignment mechanism (3) are all connected to the threaded hole (702) by bolts to fix and adjust their positions so as to accommodate the adhesive application of different sizes of electrode groups into the case.

7. The battery gluing and casing device according to claim 1, wherein, The bracket (7) is provided with a roller groove (703). The roller (101) of the battery cell pushing mechanism (1) is placed in the roller groove (703). The roller (101) can roll in the groove. The push plate can move forward or backward through the cooperation between the groove and the roller (101), thereby completing the glue-attaching and shell-insertion action.

8. A battery adhesive insertion device according to claim 7, characterized in that, During the process of inserting the battery cell into the casing, there are two roller grooves (703).

9. A battery adhesive bonding and casing device according to claim 5, characterized in that, After the battery case is installed, the bottom edge limiting block (4) and the side edge limiting block (5) of the battery case are equipped with adjustment grooves to adjust the position of the bottom edge limiting block (4) and the side edge limiting block (5).

10. A battery adhesive bonding and casing device according to claim 1, characterized in that, The overall structure of the device is adapted to the battery trial production line. By adjusting the positions of the bottom edge limiting block (4), the side edge limiting block (5), and the adhesive alignment mechanism (3) on the bracket (7), the adhesive application and casing operation of battery cells of various sizes can be realized.

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