Novel roll core kneading device
By designing a new type of core-flattening device, which utilizes components such as a fixed frame, a pressing and lifting platform, and a conical ejector pin, the problem of foil turning outwards was solved, the welding effect and cell quality were improved, and the cost was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional methods of flattening the core can easily cause the foil to flip outwards, affecting the welding effect and the quality of the battery cell, increasing costs, and posing safety hazards.
A novel core rolling and flattening device is designed, which uses components such as a fixed frame, a rolling and pressing lifting platform, a rotating disk, and a conical pin. The conical pin is used to close the foil to prevent the core from turning outward, and the rotating disk and pressure column are used to rotate and flatten it into a cone shape.
It effectively prevents the core from flipping outward, improves welding effect and yield, reduces costs, and ensures the safety of the battery cell.
Smart Images
Figure CN224096727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery cells, and in particular to a novel core rolling and flattening device. Background Technology
[0002] Core flattening is an essential process in cylindrical battery manufacturing. Traditional core flattening methods can easily cause the core foil to flip outwards during the flattening process, which will affect the welding effect, yield and efficiency during subsequent busbar welding, and will also increase costs. After being inserted into the casing, the outward-flipped core will come into contact with the casing, causing a short circuit in the cell, affecting the cell quality and failing to meet safety production standards. Therefore, a new type of core flattening device is proposed. Utility Model Content
[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.
[0004] A novel core-flattening device includes a fixed frame. Two horizontally arranged pressing and kneading platforms are positioned on the upper and lower ends of one side of the fixed frame, and these platforms can move up and down on the fixed frame. A pressing column is vertically arranged on each pressing and kneading platform, and a rotating disk is fitted around the pressing column. The rotating disk and the pressing column rotate in the same direction, and the pressing column and the pressing and kneading platform move in the same direction. The pressing columns vertically clamp the core. A fixed seat is horizontally arranged around the bottom of each rotating disk, and the fixed seat and the rotating disk rotate in the same direction. A conical pin is obliquely driven on the fixed seat, and one end of the conical pin penetrates the pressing column and is located inside the pressing column.
[0005] Preferably, a reduction motor is provided between the pressure column and the kneading lifting platform, and the reduction motor is located on the kneading lifting platform, and the reduction motor is driven by the pressure column.
[0006] Preferably, a belt gear is provided between the reduction motor and the pressure column, and the belt gear is fitted onto the pressure column. The belt gear and the pressure column move in the same direction, and the belt gear is driven by the reduction motor.
[0007] Preferably, a sliding guide rail is provided between the fixed frame and the kneading lifting platform, and the sliding guide rail is vertically located at the upper and lower ends of the side of the fixed frame, and the kneading lifting platform is horizontally located at the side of the sliding guide rail.
[0008] Preferably, the pressure post is provided with a pin, and the pin is vertically located at the end face of the pressure post, and the pin and the pressure post move in the same direction.
[0009] Preferably, the kneading lifting platform is equipped with a dust suction hood, which is vertically located on the kneading lifting platform and is interconnected with the kneading lifting platform.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When the core is placed vertically on the side of the fixing frame, the kneading lifting platform at both ends of the fixing frame moves towards the upper and lower ends of the core and makes the pressure column contact the upper and lower ends of the core. As the core is fixed between the pressure columns, the conical pin moves from the fixing seat and enters the core. During this process, the foil at the outer round opening of both ends of the core closes inward with the conical pin. After the conical pin reaches the designated position, it stops. The rotating disk drives the pressure column to rotate, so that the foil at both ends of the core is tapered, preventing the core from turning outward when kneading.
[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0012] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 A schematic diagram of a novel core-flattening device;
[0014] Figure 2 Another structural schematic diagram of a novel core-flattening device;
[0015] Figure 3 This is a schematic diagram of the kneading and pressing lifting platform;
[0016] Figure 4 This is another structural schematic diagram of the kneading lifting platform.
[0017] The following components are shown in the diagram: 1. Fixed frame, 2. Sliding guide rail, 3. Kneading lifting platform, 4. Gear motor, 5. Rotary disc, 6. Fixed base, 7. Roll core, 8. Dust hood, 9. Belt gear, 10. Pressure column, 11. Insert pin, 12. Conical ejector pin. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-4In this embodiment of the present invention, a novel core-flattening device includes a fixed frame 1. A pressing lifting platform 3 is laterally arranged at both the upper and lower ends of one side of the fixed frame 1, and the pressing lifting platform 3 moves up and down on the fixed frame 1. A pressing column 10 is vertically arranged on the pressing lifting platform 3, and a rotating disk 5 is fitted around the pressing column 10. The rotating disk 5 and the pressing column 10 rotate in the same direction, and the pressing column 10 moves in the same direction as the pressing lifting platform 3. The pressing columns 10 vertically clamp the core 7. A fixed seat 6 is laterally arranged around the bottom of each rotating disk 5, and the fixed seat 6 rotates in the same direction as the rotating disk 5. The fixed seat 6 is inclined... A conical ejector pin 12 is provided on the drive, and one end of the conical ejector pin 12 passes through the pressure column 10 and is located inside the pressure column 10. When the core 7 is placed vertically on the side of the fixing frame 1, the kneading lifting platform 3 at the upper and lower ends of the fixing frame 1 moves towards the upper and lower ends of the core 7 and makes the pressure column 10 contact the upper and lower ends of the core 7. Thus, when the core 7 is fixed between the pressure columns 10, the conical ejector pin 12 moves from the fixing seat 6 and enters the core. During this process, the foil at the outer round opening of the core 7 is closed inward with the conical ejector pin 12. After the conical ejector pin 12 reaches the designated position, it stops. The rotating disk 5 drives the pressure column 10 to rotate, so that the foil at both ends of the core is closed into a conical shape, preventing the core from turning outward when kneading.
[0020] A reduction motor 4 is provided between the pressure column 10 and the kneading lifting platform 3. The reduction motor 4 is located on the kneading lifting platform 3 and is connected to the pressure column 10. Thus, the reduction motor 4 drives the pressure column 10 and the rotating disk 5 to rotate on the kneading lifting platform 3.
[0021] A belt gear 9 is provided between the reduction motor 4 and the pressure column 10, and the belt gear 9 is mounted on the pressure column 10. The belt gear 9 and the pressure column 10 move in the same direction, and the belt gear 9 is connected to the reduction motor 4 for driving. Thus, when the reduction motor 7 drives the belt gear 9 to rotate, it simultaneously drives the pressure column 10 to rotate.
[0022] A sliding guide rail 2 is provided between the fixed frame 1 and the kneading lifting platform 3. The sliding guide rail 2 is vertically located at the upper and lower ends of the side of the fixed frame 1, and the kneading lifting platform 3 is horizontally located on the side of the sliding guide rail 2. Thus, the kneading lifting platform 3 is driven to move on the side of the fixed frame 1 through the sliding guide rail 2.
[0023] The pressure post 10 is provided with a pin 11, and the pin 11 is vertically located at the end face of the pressure post 10. The pin 11 and the pressure post 10 are in the same direction of movement, so that when the core 7 is clamped between the pressure posts 10, the pin 11 is inserted at the upper and lower ends of the core 7 respectively, preventing the core 7 from shifting position when the end is kneaded.
[0024] The kneading lifting platform 3 is equipped with a dust suction hood 8, which is vertically located on the kneading lifting platform 3 and is interconnected with the kneading lifting platform 3, thereby enabling the kneading lifting platform 3 to extract the dust generated when the core 7 is kneaded at the end.
[0025] 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 exemplary 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.
Claims
1. A novel core-flattening device, comprising a fixing frame, characterized in that, Both ends of one side of the fixed frame are horizontally arranged with kneading and pressing lifting platforms, which can move up and down on the fixed frame. Each kneading and pressing lifting platform is vertically arranged with a pressure column, and a rotating disk is fitted around the pressure column. The rotating disk and the pressure column rotate in the same direction, and the pressure column and the kneading and pressing lifting platform move in the same direction. The pressure columns vertically clamp the core. Each rotating disk is horizontally arranged with a fixed seat around its bottom, and the fixed seat and the rotating disk rotate in the same direction. The fixed seat is obliquely driven with a conical pin, and one end of the conical pin passes through the pressure column and is located inside the pressure column.
2. The novel core-rolling and flattening device according to claim 1, characterized in that, A reduction motor is installed between the pressure column and the kneading lifting platform, and the reduction motor is located on the kneading lifting platform, and the reduction motor is connected to the pressure column for driving.
3. The novel core-rolling and flattening device according to claim 2, characterized in that, A belt gear is provided between the reduction motor and the pressure column, and the belt gear is mounted on the pressure column. The belt gear and the pressure column move in the same direction, and the belt gear is driven by the reduction motor.
4. The novel core-rolling and flattening device according to claim 1, characterized in that, A sliding guide rail is provided between the fixed frame and the kneading lifting platform. The sliding guide rail is vertically located at the upper and lower ends of the side of the fixed frame, and the kneading lifting platform is horizontally located on the side of the sliding guide rail.
5. A novel core-rolling and flattening device according to claim 1, characterized in that, The pressure post is equipped with a pin, which is vertically located at the end face of the pressure post, and the pin and the pressure post move in the same direction.
6. A novel core-rolling and flattening device according to claim 1, characterized in that, The kneading lifting platform is equipped with a dust suction hood, which is vertically located on the kneading lifting platform and is interconnected with the kneading lifting platform.