A lithium battery edge folding and ironing mechanism

By designing a lithium battery edge folding and hot pressing mechanism, and using a cylinder to drive a hot pressing head to achieve hot pressing, folding and re-hot pressing of the skirt edge, the problem of equipment complexity and high cost caused by multiple skirt edge shaping stations in lithium battery production is solved, achieving efficient production and cost reduction.

CN224554370UActive Publication Date: 2026-07-24DONGGUAN MINGYIYOU AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN MINGYIYOU AUTOMATION EQUIP CO LTD
Filing Date
2025-09-02
Publication Date
2026-07-24

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    Figure CN224554370U_ABST
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Abstract

The utility model provides a kind of lithium battery edge folding ironing mechanism, including installation base, placing carrier plate, first folding ironing subassembly and second folding ironing subassembly, placing carrier plate is erected above installation base, first folding ironing subassembly and second folding ironing subassembly are fixed on installation base, first folding ironing subassembly and second folding ironing subassembly symmetrically set in the front and back of placing carrier plate, first folding ironing subassembly includes adjustable base, fixed support, first Z-axis cylinder, first lifting plate, support boss, second Z-axis cylinder, second lifting plate and edge folding ironing component, the advantage of the design is that: can realize the hot-pressing, folding and again hot-pressing of battery skirt in turn, to complete the shaping process of battery skirt quickly, not only improve production efficiency, and compact structure, reduce the manufacturing cost of equipment.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing technology, and in particular to a lithium battery edge folding and hot-pressing mechanism. Background Technology

[0002] In the precision manufacturing process of lithium batteries, edge shaping is a crucial step in ensuring the stability and safety of the battery structure. First, a roller folding mechanism folds the lithium battery edge in half, resulting in a double-layered edge. This folded edge then undergoes heat treatment at a hot stamping station for shaping. Next, at the folding station, the double-layered edge is folded downwards at a 90° angle to ensure it adheres tightly to the sidewall of the battery body. Finally, it undergoes another heat treatment at a hot stamping station for final shaping. As can be seen, the number of shaping stations for lithium batteries is relatively large, leading to bulky and complex equipment, and increasing manufacturing costs. Therefore, it is necessary to develop a lithium battery edge folding and hot stamping mechanism to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a lithium battery edge folding and hot-pressing mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A lithium battery edge folding and hot-pressing mechanism includes a mounting base, a placement plate, a first hot-pressing component, and a second hot-pressing component. The placement plate is mounted above the mounting base. Both the first and second hot-pressing components are fixed to the mounting base and are symmetrically arranged on the front and rear sides of the placement plate. The first hot-pressing component includes an adjustable base, a fixed bracket, a first Z-axis cylinder, a first lifting plate, a support boss, a second Z-axis cylinder, a second lifting plate, and edge folding and hot-pressing parts. The adjustable base is fixed to the mounting base, the fixed bracket is mounted on the adjustable base, the first Z-axis cylinder is fixed above the adjustable base, and the first lifting plate is fixed to the power output end of the first Z-axis cylinder and slidably connected to the fixed bracket. The first Z-axis cylinder drives the first lifting plate to move vertically, supporting... The boss is fixed above the first lifting plate and close to the side where the carrier plate is placed. The second lifting plate is slidably connected to the fixed bracket and corresponds to the top of the first lifting plate. The second Z-axis cylinder is fixed on the adjustable base. The power output end of the second Z-axis cylinder passes through the first lifting plate and is fixedly connected to the second lifting plate. The second Z-axis cylinder drives the second lifting plate to move vertically. The folding and hot edge component includes a Y-axis cylinder, a Y-axis slide, a Y-axis slider, a connecting plate, and a hot press head. The Y-axis cylinder and the Y-axis slide are both fixed above the second lifting plate. The Y-axis slider is fixed below the connecting plate and is slidably connected to the Y-axis slide. One end of the connecting plate is connected to the power output end of the Y-axis cylinder, and the other end is close to the side where the carrier plate is placed. The hot press head is fixed below the connecting plate and corresponds to the top of the supporting boss. A heating rod is installed inside the hot press head.

[0006] Further description of the present invention: The upper left and right ends of the support boss are provided with first rounded corners.

[0007] Further description of the present invention: The lower end of the hot press head is provided with a second rounded corner on the side near the placement of the carrier plate.

[0008] Further description of the present invention: Two sets of first Z-axis cylinders are provided, corresponding to the left and right sides of the second Z-axis cylinder.

[0009] Further description of the present invention: The carrier plate, the first folding and ironing assembly, and the second folding and ironing assembly are arranged side by side along the X-axis.

[0010] The beneficial effects of this utility model are as follows: The battery is transported from the previous process to the placement carrier by a robotic arm. During the movement of the battery along the X-axis, the skirts on the front and rear sides of the battery correspond to the support boss and the hot pressing head. After the robotic arm places the battery on the placement carrier, the second Z-axis cylinder drives the second lifting plate to descend, thereby pressing the lower end face of the hot pressing head firmly against the support boss. The hot pressing head is heated by a heating rod to heat and shape the battery skirt. Then, the hot pressing head returns to its original position. After the first Z-axis cylinder drives the first lifting plate to descend, the second Z-axis cylinder drives the second lifting plate to descend again. The hot pressing head folds the skirt downwards towards the battery body, and is driven by the Y-axis cylinder to move the sidewall of the hot pressing head towards the battery side, pressing the folded skirt firmly onto the battery body for heating and shaping. The hot pressing head then returns to its original position. The advantage of this design is that it can sequentially realize the hot pressing, folding, and re-hot pressing of the battery skirt, thus quickly completing the shaping process of the battery skirt. This not only improves production efficiency but also has a compact structure and reduces the manufacturing cost of the equipment. Attached Figure Description

[0011] Figure 1 This is an overall structural diagram of the present invention;

[0012] Figure 2 This is a structural diagram of the first folding and ironing component and the carrier plate in this utility model;

[0013] Figure 3 yes Figure 2 A magnified view of a portion of position A in the middle;

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Mounting base; 2. Placing carrier plate; 3. First folding and ironing assembly; 31. Adjustable base; 32. Fixed bracket; 33. First Z-axis cylinder; 34. First lifting plate; 35. Support boss; 351. First rounded corner; 36. Second Z-axis cylinder; 37. Second lifting plate; 38. Folding and ironing component; 381. Y-axis cylinder; 382. Y-axis slide; 383. Y-axis slider; 384. Connecting plate; 385. Hot press head; 3851. Second rounded corner; 4. Second folding and ironing assembly. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] like Figures 1 to 3 As shown, a lithium battery edge folding and ironing mechanism includes a mounting base 1, a placement carrier plate 2, a first folding and ironing assembly 3, and a second folding and ironing assembly 4. The placement carrier plate 2 is mounted above the mounting base 1. The first folding and ironing assembly 3 and the second folding and ironing assembly 4 are both fixed on the mounting base 1. The first folding and ironing assembly 3 and the second folding and ironing assembly 4 are symmetrically arranged on the front and rear sides of the placement carrier plate 2. The first folding and ironing assembly 3 includes an adjustable base 31, a fixed bracket 32, a first Z-axis cylinder 33, a first lifting plate 34, a support boss 35, a second Z-axis cylinder 36, a second lifting plate 37, and an edge folding and ironing component 38. The adjustable base 31 is fixed on the mounting base 1, the fixed bracket 32 ​​is mounted on the adjustable base 31, the first Z-axis cylinder 33 is fixed above the adjustable base 31, the first lifting plate 34 is fixed to the power output end of the first Z-axis cylinder 33 and slidably connected to the fixed bracket 32, the first Z-axis cylinder 33 drives the first lifting plate 34 to move vertically, and the support boss 35 is fixed to the first lifting plate. Above and near the placement plate 2, the second lifting plate 37 is slidably connected to the fixed bracket 32 ​​and corresponds to the upper part of the first lifting plate 34. The second Z-axis cylinder 36 is fixed on the adjustable base 31. The power output end of the second Z-axis cylinder 36 passes through the first lifting plate 34 and is fixedly connected to the second lifting plate 37. The second Z-axis cylinder 36 drives the second lifting plate 37 to move vertically. The folding and hot-pressing component 38 includes a Y-axis cylinder 381, a Y-axis slide 382, ​​and a Y-axis slider 383. The connecting plate 384 and the hot press head 385, the Y-axis cylinder 381 and the Y-axis slide 382 are all fixed above the second lifting plate 37. The Y-axis slider 383 is fixed below the connecting plate 384 and is slidably connected to the Y-axis slide 382. One end of the connecting plate 384 is connected to the power output end of the Y-axis cylinder 381, and the other end is close to the side where the carrier plate 2 is placed. The hot press head 385 is fixed below the connecting plate 384 and corresponds to the support boss 35 above it. A heating rod is installed inside the hot press head 385.

[0018] The battery is transported from the previous process to the placement carrier plate 2 by a robotic arm. During the movement of the battery along the X-axis, the skirts on the front and rear sides of the battery correspond to the support boss 35 and the hot pressing head 385. After the robotic arm places the battery on the placement carrier plate 2, the second Z-axis cylinder 36 drives the second lifting plate 37 to descend, thereby pressing the lower end face of the hot pressing head 385 against the support boss 35. The hot pressing head 385 is heated by a heating rod and heats and shapes the battery skirt. Then, the hot pressing head 385 returns to its original position. After the first Z-axis cylinder 33 drives the first lifting plate 34 to descend, the second Z-axis cylinder 36 drives the second lifting plate 37 to descend again. The hot pressing head 385 folds the skirt downwards towards the battery body and is driven by the Y-axis cylinder 381 to move the side wall of the hot pressing head 385 towards the battery side, pressing the folded skirt against the battery body and heating and shaping it. Then, the hot pressing head 385 returns to its original position. The advantage of this design is that it can sequentially perform hot pressing, folding, and re-hot pressing of the battery skirt, thereby quickly completing the shaping process of the battery skirt. This not only improves production efficiency but also has a compact structure, reducing the manufacturing cost of the equipment.

[0019] The upper left and right ends of the support boss 35 are provided with first rounded corners 351, which allows the battery to move as close as possible to the placement plate 2 in the vertical direction as it moves along the X-axis. After the battery skirt contacts the first rounded corners 351, it is guided to sit on the support boss 35, reducing the travel of the robot arm and improving efficiency.

[0020] The lower end of the hot press head 385 is provided with a second rounded corner 3851 on the side near the placement carrier plate 2. During the process of the hot press head 385 folding the skirt downwards toward the battery body, the lower end of the hot press head 385 near the placement carrier plate 2 is protected from sharp corners that could damage the battery skirt.

[0021] Two sets of the first Z-axis cylinders 33 are provided, corresponding to the left and right sides of the second Z-axis cylinders 36. The two sets of first Z-axis cylinders 33 drive the left and right sides of the first lifting plate 34 to move synchronously, ensuring the horizontality of the first lifting plate 34.

[0022] The carrier plate 2, the first folding and ironing assembly 3, and the second folding and ironing assembly 4 are arranged side by side along the X-axis, which can simultaneously shape the skirts of two sets of batteries, thereby improving production efficiency.

[0023] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A lithium battery edge folding and hot-pressing mechanism, characterized in that: The device includes a mounting base, a placement carrier plate, a first folding and ironing assembly, and a second folding and ironing assembly. The placement carrier plate is mounted above the mounting base. Both the first and second folding and ironing assemblies are fixed to the mounting base and are symmetrically arranged on the front and rear sides of the placement carrier plate. The first folding and ironing assembly includes an adjustable base, a fixed bracket, a first Z-axis cylinder, a first lifting plate, a support boss, a second Z-axis cylinder, a second lifting plate, and an edge folding and ironing component. The adjustable base is fixed to the mounting base, and the fixed bracket is mounted on the adjustable base. The first Z-axis cylinder is fixed above the adjustable base. The first lifting plate is fixed to the power output end of the first Z-axis cylinder and slidably connected to the fixed bracket. The first Z-axis cylinder drives the first lifting plate to move vertically. The support boss is fixed to the first lifting plate. Above the plate and near the side of the placement carrier, the second lifting plate is slidably connected to the fixed bracket and corresponds to the upper part of the first lifting plate. The second Z-axis cylinder is fixed on the adjustable base. The power output end of the second Z-axis cylinder passes through the first lifting plate and is fixedly connected to the second lifting plate. The second Z-axis cylinder drives the second lifting plate to move vertically. The edge-folding and hot-pressing component includes a Y-axis cylinder, a Y-axis slide, a Y-axis slider, a connecting plate, and a hot press head. The Y-axis cylinder and the Y-axis slide are both fixed above the second lifting plate. The Y-axis slider is fixed below the connecting plate and slidably connected to the Y-axis slide. One end of the connecting plate is connected to the power output end of the Y-axis cylinder, and the other end is near the side of the placement carrier. The hot press head is fixed below the connecting plate and corresponds to the upper part of the support boss. A heating rod is installed inside the hot press head.

2. The lithium battery edge folding and hot-pressing mechanism according to claim 1, characterized in that: The upper left and right ends of the support boss are provided with first rounded corners.

3. The lithium battery edge folding and hot-pressing mechanism according to claim 1, characterized in that: The lower end of the hot press head has a second rounded corner on the side near the placement carrier plate.

4. The lithium battery edge folding and hot-pressing mechanism according to claim 1, characterized in that: The first Z-axis cylinder is provided in two sets, corresponding to the left and right sides of the second Z-axis cylinder.

5. The lithium battery edge folding and hot-pressing mechanism according to claim 1, characterized in that: The carrier plate, the first folding and ironing assembly, and the second folding and ironing assembly are arranged in two sets side by side along the X-axis.