Automatic flaring and boxing structure for lithium battery top-side sealing machines
By designing an automated flaring and packaging structure, the problem of low efficiency in manual flaring during lithium battery production was solved, achieving automated flaring and improving production efficiency and flaring quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN RUNNENG MASCH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-30
AI Technical Summary
In current lithium battery production, the flaring process after top-side sealing relies on manual operation, which is inefficient, difficult to match the pace of automated production lines, and the inconsistent size and shape of the flaring affects the liquid injection effect and sealing quality.
The automatic flaring and boxing structure designed for lithium battery top-side sealing machines includes a flaring assembly, a conveying assembly, and a material collection box. The battery is fixed by a positioning suction cup, and a push-pull cylinder drives the flaring cutter to precisely insert and rotate to open the aluminum-plastic film, thus realizing an automated flaring process.
The automated flaring process has been implemented, which has improved production efficiency and flaring accuracy, ensured that the size and shape of the flared openings are consistent, and enhanced overall production efficiency and injection effect.
Smart Images

Figure CN224437629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery top-side sealing machines, and in particular to an automatic flaring and boxing structure for lithium battery top-side sealing machines. Background Technology
[0002] In the manufacturing process of pouch lithium batteries, top-side sealing is one of the key packaging steps. The lithium battery top-side sealing machine is mainly used to heat-seal the top and sides of the battery's aluminum-plastic film casing, forming a preliminary sealed cavity. This process is usually performed after the battery cell is installed in the casing. After sealing, the battery body is basically formed, but an opening is left for subsequent electrolyte injection.
[0003] After completing the top and side sealing and before the final electrolyte injection and sealing of the last side, there is an important preparatory step – flaring. Because the edge of the pre-reserved injection port of the aluminum-plastic film is tightly adhered after sealing, it is necessary to open and enlarge the opening to form a sufficiently large channel so that the subsequent injection tube can be smoothly inserted and injected with electrolyte.
[0004] Currently, this flaring process mainly relies on manual operation. Operators need to manually place the battery at the workstation, then use tools to insert and pry open the pre-reserved opening in the aluminum-plastic film. However, manual flaring is inefficient, slow, and difficult to match the pace of automated production lines, becoming a bottleneck in production capacity. The force, angle, and depth of manual operation are difficult to control precisely, easily leading to inconsistencies in the size and shape of the flared opening, affecting the subsequent liquid injection effect and the final edge sealing quality, and may even damage the inner layer of the aluminum-plastic film. Utility Model Content
[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides an automatic flaring and boxing structure for lithium battery top-side sealing machines, which can effectively solve the technical problem of manual flaring.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] An automatic flaring and boxing structure for a lithium battery top-side sealing machine includes a machine body, on which a sealing platform, a conveying component, and a material collection box are mounted. A flaring component is disposed between the sealing platform and the material collection box. The flaring component includes a flaring platform, a flaring cutter, a drive motor, and a fixed base. The flaring platform and the drive motor are mounted above the fixed base. The blade of the flaring cutter is connected to the drive motor, and the tip of the flaring cutter faces the flipping platform. A push-pull cylinder, a guide rail, and a movable platform are disposed on the surface of the fixed base. The movable platform is slidably connected to the surface of the guide rail. The drive motor is mounted on the surface of the movable platform. The push-pull cylinder is mounted on the edge of the fixed base. The extension rod of the push-pull cylinder is connected to the movable platform. The push-pull cylinder can drive the drive motor to move along the guide rail, thereby bringing the flaring cutter closer to the flaring platform. A positioning suction cup is disposed at the bottom end of the flaring platform, extending to the surface of the flaring platform. The conveying component connects the sealing platform, the flaring component, and the material collection box.
[0008] Furthermore, the conveying assembly includes a dual-slide screw drive rail, a first feeding arm, and a second feeding arm. The first feeding arm and the second feeding arm are respectively mounted on the surfaces of the two slides of the dual-slide screw drive rail. The two slides can move independently. The first feeding arm is used to move the material from the sealing platform to the surface of the flaring platform, and the second feeding arm is used to move the material from the flaring platform to the material collection box.
[0009] Furthermore, the first feeding arm consists of an extended base plate, a lifting cylinder, and a first material-retrieving suction cup. The extended base plate is fixedly connected to the slide near the end of the double slide screw drive rail close to the sealing platform. The lifting cylinder is installed at the end of the extended base plate close to the flaring assembly. The first material-retrieving suction cup is connected to the telescopic end of the lifting cylinder.
[0010] Furthermore, the second feeding arm consists of a lifting drive assembly, an extension rod, and a second material suction cup. The lifting drive assembly is fixedly connected to the slide table near the material collection box at one end of the double slide table screw drive rail. The second material suction cup is installed on the extension rod near the material collection box. The lifting drive assembly drives the extension rod to rise and fall relative to the material collection box.
[0011] Furthermore, the fixed base is provided with a side support plate on its edge, and the flaring platform is rotatably connected to the side support plate via a rotating shaft. The rotating shaft passes through the side support plate and is connected to a drive cylinder, which can push the rotating shaft to rotate, thereby causing the flaring platform to flip.
[0012] Furthermore, a translation drive track is installed at the bottom of the material collection box, which can drive the material collection box to move back and forth relative to the conveying component.
[0013] Compared with existing technologies, the advantages of this invention are as follows: By adding a flaring assembly, the conveying assembly transports the top-side-sealed battery to the flaring platform. A positioning suction cup reliably adheres to and fixes the battery. A push-pull cylinder drives the slide table to move along the guide rail, causing the drive motor and the flaring cutter mounted on it to smoothly and precisely slide towards the pre-reserved opening in the battery, ensuring the cutter tip accurately inserts into the opening. Subsequently, the drive motor drives the flaring cutter to rotate, and the rotation of the cutter stably and reliably opens the aluminum-plastic film opening, forming a suitable channel. The entire process is automated, fast, and highly precise, significantly improving overall production efficiency. It can be integrated into a lithium battery top-side sealing machine or a complete automated production line to achieve a continuous automated process from top-side sealing completion to automatic flaring to boxing. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the flaring component in this utility model;
[0016] Figure 3 This is a schematic diagram of the transport component in this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the first feeding arm in this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the second feeding arm in this utility model;
[0019] The diagram is labeled as follows: 1-Machine body, 2-Sealing platform, 3-Conveying component, 4-Material collection box, 5-Braving component, 501-Braving platform, 502-Braving cutter, 503-Drive motor, 504-Fixed base, 505-Push-pull cylinder, 506-Guide rail, 507-Positioning suction cup, 508-Drive cylinder, 6-Double slide table screw drive rail, 7-First feeding arm, 701-Extension base plate, 702-Lifting cylinder, 703-First material retrieval suction cup, 8-Second feeding arm, 801-Lifting drive component, 802-Extension rod, 803-Second material retrieval suction cup, 9-Translation drive rail. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] The following is combined Figures 1-5 The present invention provides a detailed description of the automatic flaring and packaging structure for a lithium battery top-side sealing machine:
[0022] An automatic flaring and boxing structure for a lithium battery top-side sealing machine includes a body 1. The body 1 is equipped with a sealing platform 2, a conveying assembly 3, and a material collection box 4. A flaring assembly 5 is positioned between the sealing platform 2 and the material collection box 4. The flaring assembly 5 includes a flaring platform 501, a flaring cutter 502, a drive motor 503, and a fixed base 504. The flaring platform 501 and the drive motor 503 are mounted above the fixed base 504. The blade of the flaring cutter 502 is connected to the drive motor 503, and the tip of the flaring cutter 502 faces the flipping platform. The surface of the fixed base 504 is equipped with a push-pull cylinder 505, a guide rail 506, and a movable table. The movable table is slidably connected to the surface of the guide rail 506. The drive motor 503 is mounted on the surface of the movable table. On the surface, a push-pull cylinder 505 is installed on the edge of the fixed base 504. The telescopic rod of the push-pull cylinder 505 is connected to the movable platform. The push-pull cylinder 505 can drive the drive motor 503 to move along the guide rail 506, thereby bringing the flaring cutter 502 closer to the flaring platform 501. The bottom end of the flaring platform 501 is provided with a positioning suction cup 507, which extends to the surface of the flaring platform 501. The conveying component 3 connects the sealing platform 2, the flaring component 5, and the material collection box 4. The edge of the fixed base 504 is provided with a side support plate. The flaring platform 501 is rotatably connected to the side support plate through a rotating shaft. The rotating shaft passes through the side support plate and is connected to a drive cylinder 508. The drive cylinder 508 can push the rotating shaft to rotate, thereby causing the flaring platform 501 to flip.
[0023] With the addition of a flaring component 5, the conveying component 3 transports the top-side sealed battery to the flaring platform 501. The positioning suction cup 507 reliably adheres to and fixes the battery. A push-pull cylinder 505 drives the slide table to move along the guide rail 506, causing the drive motor 503 and the flaring cutter 502 mounted on it to smoothly and precisely move towards the pre-reserved opening in the battery, ensuring the cutter tip accurately inserts into the opening. Subsequently, the drive motor 503 drives the flaring cutter 502 to rotate, and the rotation of the cutter stably and reliably opens the aluminum-plastic film opening, forming a suitable channel. The entire process is automated, fast, and highly precise, significantly improving overall production efficiency. It can be integrated into a lithium battery top-side sealing machine or a complete automated production line to achieve a continuous automated process from top-side sealing to automatic flaring to boxing.
[0024] The conveying assembly 3 includes a dual-slide screw drive rail 6, a first feeding arm 7, and a second feeding arm 8. The first feeding arm 7 and the second feeding arm 8 are respectively mounted on the surfaces of the two slides of the dual-slide screw drive rail 6. The two slides can move independently. The first feeding arm 7 is used to move the material from the sealing platform 2 to the surface of the flaring platform 501, and the second feeding arm 8 is used to move the material from the flaring platform 501 to the material collection box 4. By using the dual-slide screw drive rail 6 and the independently controlled first feeding arm 7 and second feeding arm 8, parallel operation is achieved. While the first feeding arm 7 transfers the sealed battery to the flaring platform 501, the second feeding arm 8 can simultaneously transfer the flared battery to the material collection box 4, eliminating waiting time between processes and significantly improving production cycle time.
[0025] The first feeding arm 7 consists of an extension base plate 701, a lifting cylinder 702, and a first material-retrieving suction cup 703. The extension base plate 701 is fixedly connected to the slide of the double-slide screw drive rail 6 near the sealing platform 2. The lifting cylinder 702 is installed at the end of the extension base plate 701 near the flaring assembly 5. The first material-retrieving suction cup 703 is connected to the telescopic end of the lifting cylinder 702. The second feeding arm 8 consists of a lifting drive assembly 801, an extension rod 802, and a second material-retrieving suction cup 803. The lifting drive assembly 801 is fixedly connected to the slide of the double-slide screw drive rail 6 near the material collection box 4. The second material-retrieving suction cup 803 is installed at the end of the extension rod 802 near the material collection box 4. The lifting drive assembly 801 drives the extension rod 802 to rise and fall relative to the material collection box 4.
[0026] The bottom of the material collection box 4 is equipped with a translation drive rail 9. The translation drive rail 9 can drive the material collection box 4 to move back and forth relative to the conveying component 3. The translation drive rail 9 drives the material collection box 4 to move back and forth, realizing multi-station cyclic collection. When the current collection box is full, it is automatically moved out, and the empty box is moved into the work position at the same time.
[0027] Working process: The first feeding arm 7 moves above the sealing platform 2. The lifting cylinder 702 drives the first picking suction cup 703 to move down and pick up the lithium battery. After the first feeding arm 7 moves the lithium battery to the flaring platform 501, the positioning suction cup 507 of the flaring platform 501 picks up the lithium battery. At the same time, the first picking suction cup 703 separates from the lithium battery. The push-pull cylinder 505 pushes the flaring cutter 502 towards the flaring platform 501. The tip of the flaring cutter 502 inserts into the opening of the lithium battery. The drive motor 50... 3. The flaring cutter 502 is driven to rotate 90° back and forth, so that the opening of the lithium battery is opened. The push-pull cylinder 505 pulls the flaring cutter 502 out of the lithium battery. The drive cylinder 508 extends and pushes the flaring platform 501 to rotate upward 90°. The second feeding arm 8 moves to one side of the flaring platform 501. The lifting drive assembly 801 drives the extension rod 802 to align the second material suction cup 803 with the lithium battery. The second material suction cup 803 adsorbs the lithium battery and moves the lithium battery into the material collection box 4.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An automatic flaring and boxing structure for a lithium battery top-side sealing machine, comprising a machine body, on which a sealing platform, a conveying component, and a material collection box are provided, characterized in that: A flaring assembly is provided between the sealing platform and the material collection box. The flaring assembly includes a flaring platform, a flaring cutter, a drive motor, and a fixed base. The flaring platform and drive motor are mounted on top of the fixed base. The blade of the flaring cutter is connected to the drive motor, and the tip of the flaring cutter faces the flipping platform. The surface of the fixed base is provided with a push-pull cylinder, a guide rail, and a movable platform. The movable platform is slidably connected to the surface of the guide rail. The drive motor is mounted on the surface of the movable platform. The push-pull cylinder is mounted on the edge of the fixed base. The extension rod of the push-pull cylinder is connected to the movable platform. The push-pull cylinder can drive the drive motor to move along the guide rail, thereby bringing the flaring cutter closer to the flaring platform. A positioning suction cup is provided at the bottom of the flaring platform, extending to the surface of the flaring platform. The conveying assembly connects the sealing platform, the flaring assembly, and the material collection box.
2. The automatic flaring and packaging structure for a lithium battery top-side sealing machine according to claim 1, characterized in that: The conveying assembly includes a double-slide screw drive rail, a first feeding arm, and a second feeding arm. The first feeding arm and the second feeding arm are respectively mounted on the surfaces of the two slides of the double-slide screw drive rail. The two slides can move independently. The first feeding arm is used to move the material from the sealing platform to the surface of the flaring platform, and the second feeding arm is used to move the material from the flaring platform to the material collection box.
3. The automatic flaring and packaging structure for a lithium battery top-side sealing machine according to claim 2, characterized in that: The first feeding arm consists of an extended base plate, a lifting cylinder, and a first material-retrieving suction cup. The extended base plate is fixedly connected to the slide table near the end of the double slide table screw drive rail close to the sealing platform. The lifting cylinder is installed at the end of the extended base plate near the flaring assembly. The first material-retrieving suction cup is connected to the telescopic end of the lifting cylinder.
4. The automatic flaring and packaging structure for a lithium battery top-side sealing machine according to claim 2, characterized in that: The second feeding arm consists of a lifting drive assembly, an extension rod, and a second material suction cup. The lifting drive assembly is fixedly connected to the slide table near the material collection box at one end of the double slide table screw drive rail. The second material suction cup is installed on the extension rod near the material collection box. The lifting drive assembly drives the extension rod to rise and fall relative to the material collection box.
5. The automatic flaring and packaging structure for a lithium battery top-side sealing machine according to any one of claims 1-4, characterized in that: The fixed base is provided with a side support plate on its edge. The flaring platform is rotatably connected to the side support plate via a rotating shaft. The rotating shaft passes through the side support plate and is connected to a drive cylinder. The drive cylinder can push the rotating shaft to rotate, thereby causing the flaring platform to flip.
6. The automatic flaring and packaging structure for a lithium battery top-side sealing machine according to any one of claims 1-4, characterized in that: The bottom of the material collection box is equipped with a translation drive track, which can drive the material collection box to move back and forth relative to the transport component.