Film sealing device for manufacturing new energy cylindrical battery
By combining automatic clamping, film feeding, and cutting mechanisms, the sealing of cylindrical batteries has been automated, solving the problem of low efficiency in manual operation, improving safety and accuracy, and increasing production efficiency.
Patent Information
- Application Number
- CN202422950380.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-29
AI Technical Summary
The current process of sealing cylindrical batteries involves low efficiency and safety hazards due to manual operation, and inaccurate cutting of the plastic film may lead to safety accidents.
The automatic clamping and film feeding mechanism, combined with the motor-driven storage wheel and limit cylinder design, realizes the automation of battery sealing. The cutting mechanism ensures the precise separation and cutting of the plastic film from the battery.
It improves the automation level of the sealing process, reduces operational risks, enhances production efficiency and product quality, and ensures safety and accuracy.
Smart Images

Figure CN223501918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sealing device for manufacturing cylindrical new energy batteries, belonging to the field of battery production technology. Background Technology
[0002] To prevent electrolyte leakage, protect against external intrusion, meet the demands of special applications, and improve battery performance, certain areas of the sidewalls of cylindrical batteries require sealing. Current sealing devices are relatively simple in design. During operation, workers manually flip the battery to ensure the plastic film evenly covers its surface. The device then presses the film to ensure a tight fit against the battery, preventing air bubbles or voids.
[0003] However, the aforementioned manual operation is not only inefficient but also poses certain safety hazards. Furthermore, during the sealing process, excess plastic film needs to be cut to ensure its size matches the battery. This step also relies on manual operation and requires a high degree of precision. If staff make operational errors or the sealing device malfunctions, inaccurate film cutting could occur, potentially leading to safety accidents and threatening the personal safety of the staff. Utility Model Content
[0004] To address the problems existing in the background technology, this utility model provides a sealing device for manufacturing new energy cylindrical batteries.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a sealing device for manufacturing cylindrical batteries for new energy, comprising a worktable, a clamping mechanism, and a film feeding mechanism; the film feeding mechanism includes a fixed block, a rotating shaft, a storage wheel, a support block, a limiting cylinder, a guide column, a support plate, and a motor; one end of the worktable is fixedly connected to the horizontally arranged motor, the output shaft of the motor is drivenly connected to the rotating shaft, the storage wheel is coaxially fixedly mounted on the outer side of the rotating shaft, both ends of the rotating shaft are rotatably connected to the upper ends of the corresponding fixed blocks, and the lower ends of the two fixed blocks are fixedly connected to the upper surface of the worktable; the support block is vertically fixed on the upper surface of the worktable, the upper end of the support block is fixedly connected to the outer wall of the horizontally arranged limiting cylinder, the lower end of the inner side wall of the limiting cylinder is fixedly connected to the lower end of the outer side wall of one end of the guide column, a material passage is provided between the upper end of the inner side wall of the limiting cylinder and the upper end of the outer side wall of one end of the guide column, and a support plate is fixed to the other end of the guide column; the support plate is used in conjunction with the clamping mechanism.
[0006] The clamping mechanism includes a clamping shell, a single-stage hydraulic cylinder, a top ring, a spring, a connecting block, a clamping block, and a moving unit. A moving unit is provided on the worktable, and a horizontally arranged cylindrical clamping shell is fixed on the moving unit. One end of the clamping shell is fixedly connected to the cylinder bodies of multiple horizontally arranged single-stage hydraulic cylinders. The piston rod of each single-stage hydraulic cylinder is fixedly connected to the vertical ring plate of the L-shaped top ring. The horizontal cylinder of the top ring extends into the interior of the clamping shell, and its end has a wedge-shaped surface. The other end of the clamping shell has multiple spring grooves. Each spring groove is fixedly connected to the inner end of a spring arranged radially along the clamping shell. The outer end of each spring is fixedly connected to the axial plate of the corresponding L-shaped connecting block. The radial plate of each connecting block slides out to the outside of the corresponding spring groove and is fixedly connected to one end of the corresponding clamping block arranged axially along the clamping shell. Each clamping block is located inside the clamping shell, and its other end has a wedge-shaped surface, which mates with the first wedge-shaped surface.
[0007] The moving unit includes a threaded rod, a driven bevel gear, a slider, a second motor, and a driving bevel gear. One end of the worktable is fixedly connected to the horizontally arranged second motor. The output shaft of the second motor is coaxially fixedly connected to the driving bevel gear. The upper surface of the worktable is provided with a groove along the working direction. A horizontally arranged threaded rod is rotatably arranged in the groove. One end of the threaded rod extends to the outside of the worktable and is coaxially fixedly connected to the driven bevel gear. The driven bevel gear meshes with the driving bevel gear. The outside of the threaded rod is threadedly connected to the slider. The slider is slidably connected to the groove. The upper end of the slider is fixedly connected to the outer wall of the clamping shell.
[0008] The clamping mechanism is connected to the cutting mechanism.
[0009] The cutting mechanism includes a fixed plate, multi-stage hydraulic cylinders, and a cutting blade; the slider is fixedly connected to the middle of the horizontally arranged fixed plate, and the two ends of the fixed plate are respectively fixedly connected to the cylinder bodies of the corresponding vertically arranged multi-stage hydraulic cylinders; the piston rods of the two multi-stage hydraulic cylinders are fixedly connected to the two ends of the cutting blade.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This invention achieves automatic battery clamping and movement through the coordinated drive of a single-stage hydraulic cylinder and a second motor. Combined with a film feeding mechanism, the battery sealing and detachment from the support sheet can be completed without manual intervention, improving operational efficiency and safety. Simultaneously, the design of the storage wheel and limiting cylinder driven by the first motor innovates the plastic film bonding method, avoiding the risks of manually flipping the battery. Furthermore, the cooperation between the cutting and clamping mechanisms not only ensures precise detachment of the plastic film from the battery but also facilitates subsequent cutting of the plastic film material. The entire process is highly automated, reducing operational risks and improving production efficiency and product quality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 yes Figure 1 Rear view;
[0014] Figure 3 yes Figure 1 A sectional view;
[0015] Figure 4 yes Figure 3 Enlarged view of point A;
[0016] Figure 5 yes Figure 2 Enlarged view of point B. Detailed Implementation
[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0018] A sealing device for manufacturing cylindrical new energy batteries includes a worktable 1, a clamping mechanism 2, and a film feeding mechanism 3. The film feeding mechanism 3 includes a fixing block 31, a rotating shaft 32, a storage wheel 33, a support block 37, a limiting cylinder 38, a guide post 39, a support plate 310, and a motor 311. One end of the worktable 1 is fixedly connected to the horizontally arranged motor 311 via a motor mounting base. The output shaft of the motor 311 is drive-connected to the rotating shaft 32. Specifically, the output shaft of the motor 311 is coaxially fixedly connected to a second pulley 35, and the second pulley 35 is drive-connected to a first pulley 34 via a belt 36. The first pulley 34 is coaxially fixedly mounted on one end of the rotating shaft 32. The outer side of the rotating shaft 32 is coaxially fixedly fitted with a storage wheel 33. The two ends of the rotating shaft 32 are rotatably connected to the upper ends of the corresponding fixed blocks 31 through bearings. The lower ends of the two fixed blocks 31 are fixedly connected to the upper surface of the worktable 1. The support block 37 is vertically fixed to the upper surface of the worktable 1. The upper end of the support block 37 is fixedly connected to the outer wall of the horizontally set limiting cylinder 38. The lower end of the inner side wall of the limiting cylinder 38 is fixedly connected to the lower end of the outer side wall of one end of the guide column 39. A material passage is left between the upper end of the inner side wall of the limiting cylinder 38 and the upper end of the outer side wall of one end of the guide column 39. The other end of the guide column 39 is fixed with a support plate 310. The support plate 310 is used in conjunction with the clamping mechanism 2.
[0019] The support block 37 serves to fix and support the limiting cylinder 38, which in turn limits the plastic film, allowing the planar plastic film to slide in an arc shape on the guide post 39.
[0020] The clamping mechanism 2 includes a clamping housing 21, a single-stage hydraulic cylinder 22, a top ring 23, a spring 25, a connecting block 26, a clamping block 27, and a moving unit. The worktable 1 is equipped with a moving unit, on which a horizontally arranged cylindrical clamping housing 21 is fixed. The interior of one end of the clamping housing 21 is fixedly connected to the cylinder bodies of multiple horizontally arranged single-stage hydraulic cylinders evenly distributed along its circumference. The piston rod of each single-stage hydraulic cylinder 22 is fixedly connected to the vertical ring plate of the L-shaped top ring 23. The horizontal cylinder of the top ring 23 extends into the interior of the clamping housing 21, and the end of the horizontal cylinder of the top ring 23 has a wedge-shaped surface. The other end of 21 has a plurality of spring grooves 24 evenly distributed around its circumference. Each spring groove 24 is fixedly connected to the inner end of a spring 25 arranged radially along the clamping housing 21. The outer end of each spring 25 is fixedly connected to the axial plate of the corresponding L-shaped connecting block 26. The radial plate of each connecting block 26 slides out to the outside of the corresponding spring groove 24 and is fixedly connected to one end of the corresponding clamping block 27 arranged axially along the clamping housing 21. Each clamping block 27 is disposed inside the clamping housing 21. The other end of each clamping block 27 is provided with a wedge-shaped surface II. Each wedge-shaped surface II is configured to cooperate with wedge-shaped surface I.
[0021] The moving unit includes a threaded rod 29, a driven bevel gear 210, a slider 211, a second motor 212, and a driving bevel gear 213. One end of the worktable 1 is fixedly connected to the horizontally arranged second motor 212 via a motor mounting base. The output shaft of the second motor 212 is coaxially fixedly connected to the driving bevel gear 213. The upper surface of the worktable 1 is provided with a slide groove 28 along the working direction. The horizontally arranged threaded rod 29 is rotatably arranged in the slide groove 28. One end of the threaded rod 29 extends to the outside of the worktable 1 and is coaxially fixedly connected to the driven bevel gear 210. The driven bevel gear 210 is meshed with the driving bevel gear 213. The outside of the threaded rod 29 is threadedly connected to the slider 211. The slider 211 is slidably connected to the slide groove 28. The upper end of the slider 211 is fixedly connected to the outer wall of the clamping housing 21.
[0022] The lower end of the clamping mechanism 2 is connected to the cutting mechanism 4.
[0023] The cutting mechanism 4 includes a fixed plate 41, a multi-stage hydraulic cylinder 42, and a cutting blade 43; the slider 211 is fixedly connected to the middle of the horizontally arranged fixed plate 41, and the two ends of the fixed plate 41 are respectively fixedly connected to the cylinder bodies of the corresponding vertically arranged multi-stage hydraulic cylinders 42, and the piston rods of the two multi-stage hydraulic cylinders 42 are correspondingly fixedly connected to the two ends of the cutting blade 43.
[0024] The working process of this utility model is as follows:
[0025] S1: Place the cylindrical battery inside the clamping housing 21;
[0026] S2: Synchronously drive all single-stage hydraulic cylinders 22 to retract, driving the top ring 23 to move into the clamping housing 21;
[0027] S3: After the wedge-shaped surface one of the top ring 23 slides along the wedge-shaped surface two of the clamping block 27, the horizontal cylinder of the top ring 23 enters between the clamping block 27 and the inner wall of the clamping shell 21, pushing all the clamping blocks 27 to move towards the center of the clamping shell 21 at the same time, and then clamping the battery; at this time, the clamping block 27 drives the connecting block 26 to slide towards the center in the spring groove 24, so that the spring 25 is compressed under the push of the connecting block 26;
[0028] S4: Motor 212 starts and drives the active bevel gear 213 to rotate;
[0029] S5: The driving bevel gear 213 drives the driven bevel gear 210 to rotate synchronously;
[0030] S6: The driven bevel gear 210 drives the threaded rod 29 to rotate in the slide groove 28. Since the slider 211 is threadedly connected to the threaded rod 29, the rotation of the threaded rod 29 causes the slider 211 to slide along the thread in the slide groove 28.
[0031] S7: Slider 211 moves the clamping shell 21 until the battery is placed on the support plate 310, and motor 212 stops rotating;
[0032] S8: Synchronously drive all single-stage hydraulic cylinders 22 to extend and drive the top ring 23 to move outward from the clamping housing 21;
[0033] S9: Spring 25 returns to its original position, causing clamp 27 to release the battery;
[0034] S10: Drive motor 311 drives the second pulley 35 to rotate. With the cooperation of the second pulley 35, belt 36 and first pulley 34, the second pulley 35 drives the first pulley 34 to rotate synchronously through the linkage of belt 36. The first pulley 34 drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the storage wheel 33 to rotate under the support of the fixed block 31.
[0035] S11: Roll the plastic film on the storage wheel 33 into an arc shape and extend it into the material passage between the limiting cylinder 38 and the guide post 39, so that the plastic film on the guide post 39 slides forward and delivers the plastic film to the battery. Then the drive motor 311 stops working.
[0036] S12: The single-stage hydraulic cylinder 22 moves again, clamping the plastic film and battery through the clamping block 27;
[0037] S13: Reverse drive motor 212, after the battery is separated from the support plate 310, motor 212 stops operating;
[0038] S14: Drive the multi-stage hydraulic cylinder 42 to move the cutting blade 43 upward, and cut off the subsequent plastic film material.
[0039] 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 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 the 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.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A sealing device for manufacturing new energy cylindrical batteries, characterized in that: The system includes a worktable, a clamping mechanism, and a film feeding mechanism. The film feeding mechanism includes a fixed block, a rotating shaft, a storage wheel, a support block, a limiting cylinder, a guide post, a support plate, and a motor. One end of the worktable is fixedly connected to the horizontally arranged motor. The output shaft of the motor is drivenly connected to the rotating shaft. The storage wheel is coaxially fixedly mounted on the outer side of the rotating shaft. Both ends of the rotating shaft are rotatably connected to the upper ends of the corresponding fixed blocks. The lower ends of the two fixed blocks are fixedly connected to the upper surface of the worktable. The support block is vertically fixed to the upper surface of the worktable. The upper end of the support block is fixedly connected to the outer wall of the horizontally arranged limiting cylinder. The lower end of the inner side wall of the limiting cylinder is fixedly connected to the lower end of the outer side wall of one end of the guide post. A material passage is provided between the upper end of the inner side wall of the limiting cylinder and the upper end of the outer side wall of one end of the guide post. A support plate is fixed to the other end of the guide post. The support plate is used in conjunction with the clamping mechanism.
2. The sealing device for manufacturing new energy cylindrical batteries according to claim 1, characterized in that: The clamping mechanism includes a clamping shell, a single-stage hydraulic cylinder, a top ring, a spring, a connecting block, a clamping block, and a moving unit. A moving unit is provided on the worktable, and a horizontally arranged cylindrical clamping shell is fixed on the moving unit. One end of the clamping shell is fixedly connected to the cylinder bodies of multiple horizontally arranged single-stage hydraulic cylinders. The piston rod of each single-stage hydraulic cylinder is fixedly connected to the vertical ring plate of the L-shaped top ring. The horizontal cylinder of the top ring extends into the interior of the clamping shell, and its end has a wedge-shaped surface. The other end of the clamping shell has multiple spring grooves. Each spring groove is fixedly connected to the inner end of a spring arranged radially along the clamping shell. The outer end of each spring is fixedly connected to the axial plate of the corresponding L-shaped connecting block. The radial plate of each connecting block slides out to the outside of the corresponding spring groove and is fixedly connected to one end of the corresponding clamping block arranged axially along the clamping shell. Each clamping block is located inside the clamping shell, and its other end has a wedge-shaped surface, which mates with the first wedge-shaped surface.
3. The sealing device for manufacturing new energy cylindrical batteries according to claim 2, characterized in that: The moving unit includes a threaded rod, a driven bevel gear, a slider, a second motor, and a driving bevel gear. One end of the worktable is fixedly connected to the horizontally arranged second motor. The output shaft of the second motor is coaxially fixedly connected to the driving bevel gear. The upper surface of the worktable is provided with a groove along the working direction. A horizontally arranged threaded rod is rotatably arranged in the groove. One end of the threaded rod extends to the outside of the worktable and is coaxially fixedly connected to the driven bevel gear. The driven bevel gear meshes with the driving bevel gear. The outside of the threaded rod is threadedly connected to the slider. The slider is slidably connected to the groove. The upper end of the slider is fixedly connected to the outer wall of the clamping shell.
4. A sealing device for manufacturing new energy cylindrical batteries according to claim 3, characterized in that: The clamping mechanism is connected to the cutting mechanism.
5. A sealing device for manufacturing new energy cylindrical batteries according to claim 4, characterized in that: The cutting mechanism includes a fixed plate, multi-stage hydraulic cylinders, and a cutting blade; the slider is fixedly connected to the middle of the horizontally arranged fixed plate, and the two ends of the fixed plate are respectively fixedly connected to the cylinder bodies of the corresponding vertically arranged multi-stage hydraulic cylinders; the piston rods of the two multi-stage hydraulic cylinders are fixedly connected to the two ends of the cutting blade.