An adhesive bonding structure for lithium battery cell processing

Abstract

This utility model relates to an adhesive application structure for lithium battery cell processing, comprising a support plate, a rotatable worktable on the support plate, a positioning fixture for clamping and positioning the battery cell on the worktable, and an installation material position on the positioning fixture. A liftable pressing assembly is connected to the support plate via a support frame, and a liftable rolling assembly is connected to the support plate via a moving assembly. The moving assembly drives the rolling assembly to move along one end of the battery cell. The rolling assembly is mounted on the moving assembly via a sliding plate. The rolling assembly includes a connecting plate, a lifting plate, a lifting driver, a sliding component, and a rollable roller. This utility model uses the pressing assembly and roller to roll and adhere adhesive tape to the battery cell, thereby achieving the function of rolling adhesive application, ensuring the positional accuracy and tightness of the adhesive tape, reducing defects such as wrinkles and bubbles, and improving the insulation and encapsulation stability of the battery cell.

Description

Technical Field

[0001] This utility model relates to the field of adhesive bonding structures, specifically to an adhesive bonding structure used in the processing of lithium battery cells. Background Technology

[0002] Lithium-ion battery cells, as a core component of modern battery technology, possess significant advantages such as small size, light weight, high energy density, and long cycle life, and are widely used in various technological fields. These include, but are not limited to, portable electronic products, power tools, energy storage systems, aerospace, and medical devices, where lithium-ion battery cells demonstrate their unique value. In the manufacturing process of lithium-ion battery cells, adhesive bonding is an indispensable step. Adhesive bonding primarily serves to improve the structural stability and electrical insulation performance of the cell.

[0003] However, the adhesive application process is crucial in the production of lithium battery cells. Traditional adhesive application methods still have certain shortcomings. On the one hand, existing adhesive application mechanisms cannot guarantee the accuracy of tape placement and the uniformity of adhesion, and are prone to wrinkles, bubbles, or poor adhesion, which affect the insulation and packaging stability of the cell and reduce the product yield. On the other hand, common simple mechanical adhesive application devices have limited functions and poor adaptability. When faced with different sized cells and various tape specifications, the adjustments are complex and cumbersome, making it impossible to operate efficiently and accurately, thus affecting the production efficiency of cell adhesive application. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned deficiencies by providing an adhesive bonding structure for lithium battery cell processing. This structure solves the technical problems of poor bonding effect and poor adaptability of existing adhesive bonding mechanisms, which affect the quality and efficiency of battery cell adhesive bonding production.

[0005] The objective of this utility model is achieved through the following means:

[0006] A bonding structure for processing lithium battery cells includes a support plate, a rotatable worktable on the support plate, a positioning fixture for clamping and positioning the battery cells on the worktable, and mounting positions for clamping and installing the battery cells on the positioning fixture. A liftable pressing assembly is connected to the support plate via a support frame. The pressing assembly lowers to press the battery cells into the mounting positions. A liftable rolling assembly is connected to the support plate via a moving assembly. The moving assembly can drive the rolling assembly to move along one end of the battery cells. The rolling assembly is mounted on the moving assembly via a sliding plate. The rolling assembly includes a connecting plate, a lifting plate, a lifting driver, a sliding member, and a rollable roller. The connecting plate is connected to the sliding plate, and the lifting plate is connected to the connecting plate via the sliding member. The lifting driver is mounted on the side of the connecting plate, and the telescopic end of the lifting driver is connected to the lifting plate, so that the lifting driver can drive the lifting plate to move up and down along the sliding member. One end of the lifting plate extends toward the positioning fixture and has a groove for mating the battery cells. The roller is installed in the groove.

[0007] Furthermore, as described above, one end of the installation material position extends outward to form an inlet opening, and the positioning fixture is provided with a positioning plate for holding the battery cell, and a positioning end extending toward the installation material position is formed on the positioning plate.

[0008] By extending outwards from one end of the installation position to form an inlet opening, the battery cell can be quickly positioned and installed. The positioning plate and its positioning end design on the positioning fixture can accurately hold the battery cell, ensuring the stability and positional accuracy of the battery cell during the adhesive application process, thereby improving the accuracy and consistency of tape application and reducing wrinkles, bubbles, or poor adhesion.

[0009] Furthermore, as described above, the pressing assembly includes a pressing cylinder, a pressing plate, and pressing blocks for matching the installation positions. The pressing cylinder is installed on one side of the support frame, and the telescopic end of the pressing cylinder extends toward the positioning fixture and is connected to the pressing plate through a connector. The pressing blocks are installed at the bottom of the pressing plate, and the position and number of the pressing blocks correspond to the installation positions.

[0010] The coordinated operation of the pressure cylinder, pressure plate, and pressure blocks ensures stable pressure on the battery cell, guaranteeing a tight fit of the tape to the cell surface during application and improving adhesion tightness. Simultaneously, the corresponding position and number of pressure blocks to the installation positions make the pressure operation more precise and efficient, enhancing the stability of the battery cell clamping and thus improving the application quality of the tape application mechanism.

[0011] Further in the above description, the moving component includes a driving motor, a screw rod, and a moving member. The screw rod is installed on the support plate through a bearing block. One end of the screw rod passes through the support base and is coaxially connected to the output shaft of the driving motor. A nut seat is arranged on the screw rod, and the nut seat is connected to the sliding plate through a connecting frame, so that the rotation of the screw rod can drive the sliding plate to move along the moving member.

[0012] Through the cooperation of the driving motor, the screw rod, and the moving member, the moving component realizes the precise movement of the sliding plate, thereby being able to flexibly adjust the position of the rolling component during the tape sticking process, ensuring that the tape can be accurately stuck at the designated position of the battery cell, improving the accuracy and flexibility of the tape sticking position, enabling the tape sticking mechanism to handle battery cells of different sizes and shapes, and improving the operation efficiency and product qualification rate.

[0013] Further in the above description, the roller is rotatably installed in the groove. The driving motor is used to drive the rolling component to approach the bottom end of the battery cell away from the pole ear. The lifting driver can drive the lifting plate to drive the roller to press against the upper surface of the battery cell, so that it rolls and sticks the tape in a "C" shape along the end of the battery cell.

[0014] The roller is rotatably installed in the groove and is precisely controlled through the driving motor and the lifting driver, and can roll and stick the tape in a "C" shape along the end of the battery cell. The rolling setting of the roller improves the uniformity and tightness of the tape sticking, effectively avoiding the generation of wrinkles and bubbles, and improving the insulation and packaging stability of the battery cell.

[0015] Specifically, the driving motor and the lifting driver drive the roller to roll along the contour of the "C" shape, so as to bond the tape to the end of the battery cell.

[0016] Further in the above description, a tape feeding component for feeding the tape to the positioning fixture is arranged on the support plate. The tape feeding component includes a tape feeding clamp, a clamping cylinder, a rotating shaft, and a driving cylinder. The rotating shaft is installed on the support plate through a feeding frame. One end of the rotating shaft passes through the feeding frame and is connected with a gear. The telescopic end of the driving cylinder is meshed with the gear through a rack. The tape feeding clamp is installed on the rotating shaft through the clamping cylinder. The driving cylinder can drive the rotating shaft to drive the tape feeding clamp to rotate towards the installation position.

[0017] The cooperation of the tape feeding component realizes the automatic feeding and precise positioning of the tape. It improves the automation degree of the tape sticking operation, and can also flexibly adjust the feeding position of the tape according to the size and shape of the battery cell, ensuring that the tape can be accurately and tightly stuck on the battery cell.

[0018] At the same time, the flexibility and adaptability of the tape feeding component enable it to handle tapes of different specifications and types, improving the versatility and production efficiency of the tape sticking mechanism.

[0019] The beneficial effects of this utility model are as follows: The positioning fixture ensures the stability and accuracy of the battery cell during the adhesive application process. By holding the battery cell at the mounting position, the positioning fixture can fix the position of the battery cell and prevent it from moving or deflecting during the adhesive application process. At the same time, the lifting function of the pressing component allows the battery cell to be firmly pressed into the mounting position. The lifting and moving function of the rolling component provides more flexible adjustment for adhesive application. The lifting driver drives the lifting plate to move up and down along the sliding part, so that the rolling component can accurately adjust the contact pressure between itself and the battery cell. The moving component drives the rolling component to move along one end of the battery cell, so that the tape can be applied along the outer surface of the battery cell, improving the uniformity and tightness of the adhesive application. Specifically, under the drive of the lifting driver, the roller is in close contact with the surface of the battery cell and moves along the set path, so that the roller rolls and pastes the tape onto the battery cell, thereby realizing the function of rolling adhesive application, ensuring the positional accuracy and tightness of the tape, reducing the generation of defects such as wrinkles and bubbles, and improving the insulation and packaging stability of the battery cell. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0021] Figure 2 This is the front view of this embodiment;

[0022] Figure 3 This is a side view of this embodiment;

[0023] Figure 4 This is a schematic diagram of the connection structure of the moving component in this embodiment;

[0024] Figure 5 This is a schematic diagram of the connection structure of the glue delivery assembly in this embodiment;

[0025] The reference numerals in the figure are as follows:

[0026] 100-Support plate, 200-Positioning fixture, 300-Installation position, 400-Positioning plate, 500-Support frame; 10-Pressure assembly, 11-Pressure cylinder, 12-Pressure plate, 13-Pressure block; 20-Moving assembly, 21-Drive motor, 22-Screw, 23-Moving part, 24-Connecting frame, 25-Sliding plate; 30-Rolling assembly, 31-Connecting plate, 32-Lifting plate, 33-Lifting driver, 34-Sliding part, 35-Roller; 40-Glue feeding assembly, 41-Glue feeding clamp, 42-Clamping cylinder, 43-Rotating shaft, 44-Drive cylinder, 45-Feeding frame, 46-Rack, 47-Gear. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] In this embodiment, refer to Figures 1-5 The present invention relates to an adhesive bonding structure for processing lithium battery cells, comprising a support plate 100, a rotatable worktable (not shown) on the support plate 100, a positioning fixture 200 for clamping and positioning the battery cells on the worktable, and an installation position 300 for holding and mounting the battery cells on the positioning fixture 200. A liftable pressing assembly 10 is connected to the support plate 100 via a support frame 500. The pressing assembly 10 lowers to press the battery cells firmly into the installation position 300. A liftable rolling assembly 30 is connected to the support plate 100 via a moving assembly 20. The moving assembly 20 can drive the rolling assembly 30 to move along one end of the battery cell. The rolling assembly 30 is mounted on the moving assembly 20 via the sliding plate 25. The rolling assembly 30 includes a connecting plate 31, a lifting plate 32, a lifting driver 33, a sliding member 34, and a rollable roller 35. The connecting plate 31 is connected to the sliding plate 25, and the lifting plate 32 is connected to the connecting plate 31 via the sliding member 34. The lifting driver 33 is mounted on the side of the connecting plate 31, and the telescopic end of the lifting driver 33 is connected to the lifting plate 32, so that the lifting driver 33 can drive the lifting plate 32 to move up and down along the sliding member 34. One end of the lifting plate 32 extends toward the positioning fixture 200 and has a groove for matching battery cells. The roller 35 is installed in the groove.

[0029] One end of the installation material position 300 extends outward to form an inlet opening, and the positioning fixture 200 is provided with a positioning plate 400 for holding the battery cell, and the positioning plate 400 has a positioning end extending toward the installation material position 300.

[0030] In this embodiment, when designing the battery cell adhesive application equipment, a mounting position 300 is first set on the support plate 100. One end of the mounting position 300 extends outward to form a large inlet, facilitating the operator to quickly and accurately place the battery cell into position. Simultaneously, a positioning plate 400 is designed on the positioning fixture 200. This positioning plate 400 is customized according to the size and shape of the battery cell to ensure that the battery cell can be securely held. One or more positioning ends extend from the positioning plate 400 towards the mounting position 300 to ensure the stability and positional accuracy of the battery cell during the adhesive application process, thereby improving the accuracy and consistency of the tape application and reducing wrinkles, bubbles, or poor adhesion.

[0031] The pressing assembly 10 includes a pressing cylinder 11, a pressing plate 12, and pressing blocks 13 for matching the installation positions 300. The pressing cylinder 11 is installed on one side of the support frame 500. The telescopic end of the pressing cylinder 11 extends toward the positioning fixture 200 and is connected to the pressing plate 12 through a connector. The pressing blocks 13 are installed at the bottom of the pressing plate 12, and the position and number of the pressing blocks 13 correspond to the installation positions 300.

[0032] The cooperation of the blanking cylinder 11, the blanking plate 12 and the blanking block 13 can achieve stable pressing of the battery cell, ensuring that the tape can closely adhere to the surface of the battery cell during the tape sticking process, and improving the tightness of the adhesion. At the same time, the position and quantity of the blanking block 13 correspond to those of the installation level 300, making the blanking operation more accurate and efficient, enhancing the stability of clamping the battery cell, and thus improving the tape sticking quality of the tape sticking mechanism.

[0033] Specifically, the blanking cylinder 11 is installed on one side of the support frame 500, and its telescopic end is connected to the blanking plate 12 through a connecting member (such as a connecting rod or a bolt). The blanking plate 12 is designed as a flat or curved surface matching the shape of the top of the battery cell to ensure uniform force during pressing. At the bottom of the blanking plate 12, corresponding numbers and shapes of blanking blocks 13 are installed according to the quantity and position of the installation level 300. The blanking block 13 is made of an elastic material to ensure that it will not damage the battery cell during pressing, and at the same time can provide sufficient pressure to make the tape closely adhere to the surface of the battery cell.

[0034] The moving component 20 includes a driving motor 21, a screw rod 22 and a moving member 23. The screw rod 22 is installed on the support plate 100 through a bearing seat. One end of the screw rod 22 passes through the support seat and is coaxially connected to the output shaft of the driving motor 21. A nut seat is arranged on the screw rod 22, and the nut seat is connected to the sliding plate 25 through a connecting frame 24, so that the rotation of the screw rod 22 can drive the sliding plate 25 to move along the moving member 23.

[0035] The moving component 20 realizes the precise movement of the sliding plate 25 through the cooperation of the driving motor 21, the screw rod 22 and the moving member 23, so as to be able to flexibly adjust the position of the rolling component 30 during the tape sticking process, ensure that the tape can be accurately pasted at the specified position position of the battery cell, improve the accuracy and flexibility of the tape sticking position, enable the tape sticking mechanism to cope with battery cells of different sizes and shapes, and improve the operation efficiency and product qualification rate.

[0036] Specifically, when the driving motor 21 is started, the screw rod 22 rotates to drive the nut seat to move along the screw rod 22, and thus pushes the sliding plate 25 to slide on the support plate 100 through the connecting frame 24. This design enables the battery cell to move and adjust precisely as needed during the tape sticking process.

[0037] The roller 35 is rotatably installed in the groove. The driving motor 21 is used to drive the rolling component 30 to approach the bottom end of the battery cell away from the pole ear. The lifting driver 33 can drive the lifting plate 32 to drive the roller 35 to press against the upper surface of the battery cell, so that it rolls and sticks the tape in a "C" shape along the end of the battery cell.

[0038] The roller 35 is rotatably installed in the groove and can be precisely controlled by the driving motor 21 and the lifting driver 33. It can roll and apply glue in a "C" shape along the end of the battery cell. The rolling setting of the roller 35 improves the uniformity and tightness of the glue application, effectively avoiding the generation of wrinkles and bubbles, and enhancing the insulation and packaging stability of the battery cell.

[0039] Specifically, the driving motor 21 and the lifting driver 33 drive the roller 35 to roll along the contour of the "C" shape, so as to bond the tape to the end of the battery cell.

[0040] A glue feeding component 40 for feeding the tape to the positioning fixture 200 is arranged on the support plate 100. The glue feeding component 40 includes a glue feeding clamp 41, a clamping cylinder 42, a rotating shaft 43 and a driving cylinder 44. The rotating shaft 43 is installed on the support plate 100 through a feeding frame 45. One end of the rotating shaft 43 passes through the feeding frame 45 and is connected with a gear 47. The telescopic end of the driving cylinder 44 is meshed and connected with the gear 47 through a rack 46. The feeding clamp is installed on the rotating shaft 43 through the clamping cylinder 42. The driving cylinder 44 can drive the rotating shaft 43 to drive the feeding clamp to rotate towards the installation position 300.

[0041] The cooperation of the glue feeding component 40 realizes the automatic feeding and precise positioning of the tape. It improves the automation degree of the glue application operation, and can also flexibly adjust the feeding position of the tape according to the size and shape of the battery cell, ensuring that the tape can be accurately and tightly pasted on the battery cell.

[0042] At the same time, the flexibility and adaptability of the glue feeding component 40 enable it to handle tapes of different specifications and types, improving the versatility and production efficiency of the glue application mechanism.

[0043] The specific glue application action process in this embodiment is as follows:

[0044] Specifically, the glue feeding component 40 is installed on the support plate 100. The glue feeding component 40 is paired with an external tape feeding mechanism, and it is used to clamp the tape through the glue feeding clamp 41 and is cut by an external cutting mechanism. When the workbench drives the positioning fixture 200 to rotate into the glue application position, the battery cell is clamped and installed through the installation position 300, and the battery cell pole ear end is clamped by the positioning plate 400 to further prevent the battery cell from moving or deflecting during the glue application process;

[0045] At this time, the rolling and pressing component 30 is located at the bottom of the positioning fixture 200. As an example, refer to Figure 3The drive cylinder 44 drives the gear 47 to rotate via the rack 46, causing the gear 47 to rotate the glue feeding clamp 41 on the rotating shaft 43 to flip, so that each glue feeding clamp 41 rotates the clamped tape to the installation position 300. The pressing cylinder 11 drives the pressing plate 12 to lower the pressing block 13 to press the beginning of the tape against the upper surface of the battery cell, preventing the tape from moving or warping during the rolling and gluing process, and ensuring the stability and accuracy of the battery cell during the gluing process. The glue feeding assembly 40 is reset to the glue taking position.

[0046] The lifting plate 32 is driven by the lifting driver 33 to move up and down along the sliding member 34, so that the roller 35 is positioned above the battery cell under the drive of the moving component 20 and the lifting driver 33. The roller 35 is driven by the moving component 20 to move along the bottom of the battery cell in a "U" shape, so that the tape can be applied along the bottom of the battery cell, improving the uniformity and tightness of the tape application. Specifically, under the drive of the lifting driver 33, the roller 35 is in close contact with the surface of the battery cell and moves along a set path, so that the roller 35 rolls and sticks the tail end of the tape to the battery cell, thereby realizing the function of rolling tape application, ensuring the positional accuracy and tightness of tape application, reducing the generation of defects such as wrinkles and bubbles, and improving the insulation and packaging stability of the battery cell.

[0047] In summary, all features of the adhesive bonding structure used in the processing of lithium battery cells contribute to improving the accuracy, uniformity, and efficiency of cell adhesive bonding, reducing defects, and increasing product yield and production efficiency.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A bonding structure for processing lithium battery cells, comprising a support plate, a rotatable worktable on the support plate, a positioning fixture for clamping and positioning the battery cells on the worktable, and mounting positions for holding and installing the battery cells on the positioning fixture, characterized in that: A liftable pressure component is connected to the support plate through a support frame. The pressure component is used to press the battery cell tightly into the installation position by descending. A rolling component that can move up and down is connected to the support plate through a moving component. The moving component can drive the rolling component to move along one end of the battery cell. The rolling component is installed on the moving component through a sliding plate. The rolling component includes a connecting plate, a lifting plate, a lifting driver, a sliding part, and a rotatable roller. The connecting plate is connected to the sliding plate. The lifting plate is connected to the connecting plate through the sliding part. The lifting driver is installed on the side of the connecting plate, and the telescopic end of the lifting driver is connected to the lifting plate, so that the lifting driver can drive the lifting plate to move up and down along the sliding part. One end of the lifting plate extends towards the positioning fixture and is provided with a groove for mating with the battery cell. The roller is installed in the groove.

2. The adhesive bonding structure for processing lithium battery cells according to claim 1, characterized in that: One end of the installation position extends outwards to form a feeding opening. A positioning plate for clamping the battery cell is arranged on the positioning fixture, and a positioning end extending towards the installation position is formed on the positioning plate.

3. The adhesive bonding structure for processing lithium battery cells according to claim 1, characterized in that: The pressure component includes a pressure cylinder, a pressure plate, and a pressure block for mating with the installation position. The pressure cylinder is installed on one side of the support frame. The telescopic end of the pressure cylinder extends towards the positioning fixture and is connected to the pressure plate through a connecting part. The pressure block is installed at the bottom of the pressure plate, and the position and quantity of the pressure block correspond to those of the installation position.

4. The adhesive bonding structure for processing lithium battery cells according to claim 1, characterized in that: The moving component includes a driving motor, a丝杆 (should be "screw rod" in English), and a moving part. The screw rod is installed on the support plate through a bearing seat. One end of the screw rod passes through the support seat and is coaxially connected to the output shaft of the driving motor. A nut seat is arranged on the screw rod. The nut seat is connected to the sliding plate through a connecting frame, so that the rotation of the screw rod can drive the sliding plate to move along the moving part.

5. The adhesive bonding structure for processing lithium battery cells according to any one of claims 1-4, characterized in that: The roller is rotatably installed in the groove. The driving motor is used to drive the rolling component to approach the bottom end of the battery cell away from the tab. The lifting driver can drive the lifting plate to drive the roller to press against the upper surface of the battery cell, so that it rolls and adheres to the glue in a "C" shape along the end of the battery cell.

6. The adhesive bonding structure for processing lithium battery cells according to any one of claims 1-4, characterized in that: A glue feeding component for conveying the tape to the positioning fixture is arranged on the support plate. The glue feeding component includes a glue feeding clamp, a clamping cylinder, a rotating shaft, and a driving cylinder. The rotating shaft is installed on the support plate through a feeding frame. One end of the rotating shaft passes through the feeding frame and is connected with a gear. The telescopic end of the driving cylinder is meshed and connected with the gear through a rack. The glue feeding clamp is installed on the rotating shaft through the clamping cylinder. The driving cylinder can drive the rotating shaft to drive the glue feeding clamp to rotate towards the installation position.

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