A cylindrical battery packing tooling
By adjusting the axial positioning and clamping components, the problems of misalignment and air bubbles in cylindrical battery packs were solved, improving the success rate and yield of packing and adapting to various cell specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI LIHUA ELECTRIC POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies for cylindrical battery coatings suffer from problems such as misalignment, air bubbles, and cell friction, which affect the success rate and yield of coating.
A cylindrical battery packing tooling was designed, which uses axial positioning to prevent misalignment, adjusts the clamping force through clamping components, and combines a suction plate and clamping wheels to achieve film tension and cell clamping, thereby reducing the generation of air bubbles.
It achieves zero offset and reduced bubbles in the coating process, improving the coating success rate and yield, while saving materials and space, and adapting to various cell specifications.
Smart Images

Figure CN224277696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cylindrical battery packing technology, and specifically to a cylindrical battery packing tooling. Background Technology
[0002] Cylindrical batteries are a type of lithium-ion battery characterized by their cylindrical shape. Due to their unique flexibility, energy density, safety, and fast-charging advantages, cylindrical batteries are considered a mainstream technology and are finding increasingly widespread application in the power and energy storage fields.
[0003] Before the battery cells are finished, a blue film coating process is required to insulate, protect against dust, and prevent surface damage. The structure of the coating tooling determines the success rate and yield of the coating. However, existing battery cell coating technologies suffer from problems such as coating misalignment, air bubbles, and cell friction. Utility Model Content
[0004] To address the problems of misalignment, air bubbles, and cell friction in existing battery cell coating technologies, this invention provides a cylindrical battery coating fixture that prevents misalignment through axial positioning, ensuring no coating deviation. The clamping force can be adjusted via a handwheel, effectively reducing the generation of air bubbles during the coating process.
[0005] This utility model provides a cylindrical battery encapsulation fixture, including a base plate and a feeding assembly. The feeding assembly includes a feeding shaft for placing the film material. A suction plate is provided on one side of the feeding assembly, and a clamping assembly capable of moving up and down is provided above the suction plate. The clamping assembly includes a clamping wheel and a connecting block. A spring is provided between the clamping wheel and the connecting block. A first frame is provided above the connecting block, and a handwheel screw is rotatably connected to the upper part of the connecting block. The handwheel screw passes through the first frame and is threadedly connected to the first frame. An axial positioning assembly is provided on the side of the suction plate away from the feeding assembly. The axial positioning assembly includes axially positioned blocks arranged opposite each other. The cylindrical battery is placed between the axially positioned blocks. A drive wheel assembly and a driven wheel assembly are respectively provided on both sides of the axial positioning assembly. The drive wheel assembly includes a drive wheel, and the driven wheel assembly includes a driven wheel. The axial directions of the drive wheel and the driven wheel are parallel to the axial direction of the cylindrical battery.
[0006] Furthermore, the feeding assembly also includes a feeding shaft positioning block and a dustproof plate. The feeding shaft positioning block is fixed to the base plate, and the dustproof plate is fixed to both ends of the feeding shaft.
[0007] Furthermore, the feeding assembly also includes nuts, which pass through the dustproof plate and are threaded to both ends of the feeding shaft. A fastening cover plate is also provided between the nut and the dustproof plate.
[0008] Furthermore, a bottom frame is fixed to the base plate, and a first bearing seat and a second bearing seat are fixed to the bottom frame. The drive wheel is rotatably connected to the first bearing seat, and the driven wheel is rotatably connected to the second bearing seat.
[0009] Furthermore, the surface of the adhesive-absorbing plate is decorated with a polished pattern.
[0010] Furthermore, a handwheel screw is fixedly connected to one end of the drive wheel.
[0011] Furthermore, the first frame is mounted on the top frame, which is mounted on top of the bottom frame and fixedly connected to it.
[0012] Furthermore, the base plate is provided with a first elongated hole, which is located at the lower part of the axial positioning component, and the length direction of the first elongated hole is the same as the axial direction of the drive wheel.
[0013] Furthermore, multiple first elongated holes are provided, and the multiple first elongated holes are arranged in a parallel array.
[0014] Furthermore, the base plate is also provided with a second elongated hole, which is located below the bottom frame, and the length direction of the second elongated hole is perpendicular to the length direction of the first elongated hole.
[0015] The beneficial effects of this utility model are as follows:
[0016] This invention simultaneously tensions the film material and clamps the battery cell, prevents misalignment through axial positioning, ensures no film displacement, and allows for adjustment of the clamping force via the clamping assembly, effectively reducing the generation of air bubbles.
[0017] This invention achieves both film tensioning and cell clamping with a single clamping wheel, saving materials and space and simplifying processing. The adhesive suction plate has a ground pattern on its surface to prevent tape adhesion and deformation after manual cutting, thus improving utilization. The clamping wheel is driven by a handwheel screw, enabling precise clamping, preventing air bubbles, and improving the success rate and yield of coating. The pre-drilled holes, such as the first and second elongated holes on the base plate, are easy to adjust and can accommodate various cylindrical batteries. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0020] Figure 2 This is a structural schematic diagram of one embodiment of the adhesive suction plate, axial positioning block, and base plate.
[0021] Explanation of main reference numerals: 101-Feeding shaft positioning block, 102-Electrostatic dustproof plate, 103-Wing nut, 104-Fastening cover plate, 105-Feeding shaft, 201-Bottom frame, 202-Driven wheel, 203-Top frame, 204-Bottom support, 205-Spring slider, 206-Handwheel screw, 207-Connecting block, 208-First bearing seat, 209-Drive wheel, 210-Support pad, 211-Clamping wheel, 212-Drive handwheel, 301-Glue suction plate, 401-Axial positioning block, 501-Base plate. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0023] like Figure 1 As shown, one embodiment of this utility model provides a cylindrical battery packing fixture, including a base plate 501 and a feeding assembly. The feeding assembly is fixed to the base plate 501 and includes a feeding shaft 105 for placing the film material. The feeding assembly also includes a feeding shaft positioning block 101 and an electrostatic dustproof plate 102. The feeding shaft positioning block 101 is fixed to the base plate 501, and the electrostatic dustproof plate 102 is fixed to both ends of the feeding shaft 105. The feeding assembly also includes a wing nut 103, which passes through the electrostatic dustproof plate 102 and is threaded to both ends of the feeding shaft 105. A fastening cover plate 104 is also provided between the nut and the dustproof plate. The film material is sleeved on the outside of the feeding shaft 105 and rotates with the feeding shaft 105. Rotating the wing nut 103 fixes the film material.
[0024] like Figure 1 and Figure 2As shown, a suction plate 301 is provided on one side of the feeding assembly, and uprights are provided on both sides of the suction plate 301. The height of the suction plate 301 is adjusted by designing the height of the uprights. The uprights are fixed to the bottom frame 201 by bolts. An axial positioning assembly is provided on the side of the suction plate 301 facing away from the feeding assembly. The axial positioning assembly includes axial positioning blocks 401 arranged opposite each other. The cylindrical battery is arranged between the axial positioning blocks 401 arranged opposite each other. A drive wheel 209 assembly and a driven wheel 202 assembly are respectively provided on both sides of the axial positioning assembly. The drive wheel 209 assembly includes a drive wheel 209. A handwheel screw 206 is fixedly connected to one end of the drive wheel 209. The driven wheel 202 assembly includes a driven wheel 202. The axial direction of the drive wheel 209 and the driven wheel 202 is parallel to the axial direction of the cylindrical battery. A bottom frame 201 is fixed to the base plate 501, and a first bearing seat 208 and a second bearing seat are fixed to the bottom frame 201. A drive wheel 209 is rotatably connected to the first bearing seat 208, and a driven wheel 202 is rotatably connected to the second bearing seat. The battery cell is placed inside the axial positioning block 401. The film material is manually stretched and pasted to the battery cell via a suction plate 301. The suction plate 301 can cooperate with clamping rollers to press and tension the film material. After wrapping, and after manual cutting, the film material can fall under its own weight, attracting and pasting the film material to prevent wrinkles and adhesion. In a preferred embodiment, the surface of the suction plate 301 has a polished texture to prevent adhesion and deformation after application.
[0025] A clamping assembly capable of vertical movement is provided above the adhesive suction plate 301. The clamping assembly includes a clamping wheel 211 and a connecting block 207. A spring slider 205 is provided between the clamping wheel 211 and the connecting block 207. A first frame is provided above the connecting block 207. A handwheel screw 206 is rotatably connected to the upper part of the connecting block 207. The handwheel screw 206 passes through the first frame and is threadedly connected to the first frame. The first frame is set on the top frame 203, which is set on the upper part of the bottom frame 201 and fixedly connected to the bottom frame 201. Rotating the handwheel drive screw, through the threaded engagement of the handwheel drive screw with the first frame, causes the connecting block 207 to move downward, thereby pushing the spring sliders 205 on both sides to press down. The other side of the spring slider 205 is connected to the clamping wheel 211, which drives the clamping wheel 211 to press down. During the downward movement of the clamping wheel 211, the membrane material can be tensioned, so that the membrane material and the battery cell are tightly bonded. One end of the drive wheel 209 is fixedly connected to the drive handwheel 212. Rotating the drive handwheel 212 drives the drive shaft to move. The bearing seats on both sides prevent friction. The drive shaft drives the battery cell to rotate in the same direction. The driven roller has a built-in bearing and a rotating shaft. The two ends of the rotating shaft are fixed. Under the power of the battery cell's rotation, the roller rotates in the same direction, so that the coating can clamp and position the battery cell simultaneously through the drive wheel 209 and the driven wheel 202.
[0026] like Figure 2As shown, in one embodiment of this utility model, the base plate 501 is provided with a first elongated hole, which is located at the lower part of the axial positioning component. The length direction of the first elongated hole is the same as the axial direction of the drive wheel 209. The axial positioning block 401 can move along the first elongated hole, thereby adjusting the mechanism according to different sized battery cells, thus adapting to and being compatible with various battery cells. In one embodiment, the axial positioning block 401 is inserted into the first elongated hole, and by adjusting the position of the axial positioning block 401 in the first elongated hole, it can adapt to various specifications of battery cells. In another embodiment, the axial positioning block 401 is slidably connected to the first elongated hole, and the axial positioning block 401 is bolted to the base plate 501. The position of the axial positioning block 401 in the first elongated hole can also be adjusted to adapt to various specifications of battery cells. Multiple first elongated holes are provided, and the multiple first elongated holes are arranged in a parallel array. The axial positioning block 401 can be adjusted in position either along the axial direction of the battery cell or in a direction perpendicular to the axial direction of the battery cell, thereby adapting to various specifications of battery cells. In one embodiment of this utility model, the base plate 501 is further provided with a second elongated hole. The second elongated hole is located below the bottom frame 201, and the length direction of the second elongated hole is perpendicular to the length direction of the first elongated hole. The bottom frame 201 is fixed to the base plate 501 by bolts, bottom support 204, and support pad 210. When it is necessary to adjust the position of each component on the base plate 501, such as the feeding component, driving component, driven component, etc., the position of the bottom frame 201 in the second elongated hole is adjusted to adapt to various specifications of battery cells.
[0027] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention.
Claims
1. A cylindrical battery coating tool, characterized by, The device includes a base plate and a feeding assembly. The feeding assembly includes a feeding shaft for placing film material. A suction plate is provided on one side of the feeding assembly. A clamping assembly capable of moving up and down is provided above the suction plate. The clamping assembly includes a clamping wheel and a connecting block. A spring is provided between the clamping wheel and the connecting block. A first frame is provided above the connecting block. A handwheel screw is rotatably connected to the upper part of the connecting block. The handwheel screw passes through the first frame and is threadedly connected to the first frame. An axial positioning assembly is provided on the side of the suction plate away from the feeding assembly. The axial positioning assembly includes axially positioned blocks arranged opposite each other. The cylindrical battery is placed between the axially positioned blocks. A drive wheel assembly and a driven wheel assembly are provided on both sides of the axial positioning assembly. The drive wheel assembly includes a drive wheel, and the driven wheel assembly includes a driven wheel. The axial directions of the drive wheel and the driven wheel are parallel to the axial direction of the cylindrical battery.
2. The cylindrical battery coating tool of claim 1, wherein, The feeding assembly also includes a feeding shaft positioning block and a dustproof plate. The feeding shaft positioning block is fixed to the base plate, and the dustproof plate is fixed to both ends of the feeding shaft.
3. The cylindrical battery coating tool of claim 2, wherein, The feeding assembly also includes nuts, which pass through the dustproof plate and are threaded to both ends of the feeding shaft. A fastening cover plate is also provided between the nut and the dustproof plate.
4. The cylindrical battery coating tool of claim 1, wherein, The base plate is fixed with a bottom frame, and the bottom frame is fixed with a first bearing seat and a second bearing seat. The drive wheel is rotatably connected to the first bearing seat, and the driven wheel is rotatably connected to the second bearing seat.
5. The cylindrical battery packing fixture as described in claim 4, characterized in that, The surface of the adhesive suction board is decorated with a polished pattern.
6. The cylindrical battery coating tool of claim 4, wherein, A handwheel screw is fixedly connected to one end of the drive wheel.
7. The cylindrical battery coating tool of claim 4, wherein, The first frame is mounted on the top frame, which is located above the bottom frame and is fixedly connected to it.
8. The cylindrical battery coating tool of claim 1, wherein, The base plate is provided with a first elongated hole, which is located at the lower part of the axial positioning component. The length direction of the first elongated hole is the same as the axial direction of the drive wheel.
9. The cylindrical battery coating tool of claim 8, wherein, Multiple first elongated holes are provided, and the multiple first elongated holes are arranged in a parallel array.
10. The cylindrical battery coating tool of claim 9, wherein, The base plate is also provided with a second elongated hole, which is located below the bottom frame, and the length direction of the second elongated hole is perpendicular to the length direction of the first elongated hole.