Multi-station shell synchronous hot press forming machine

Abstract

The utility model discloses a multi -station shell synchronous hot -press forming machine, including package frame, multiple package group, vacuum cavity, first cover plate lifting drive arrangement and second cover plate lifting drive arrangement, and vacuum cavity lifting sliding is installed on the package frame, and multiple package group is installed on the vacuum cavity and is used for heating sealing to the electric core shell, and first cover plate lifting drive arrangement and second cover plate lifting drive arrangement are respectively installed on the both sides of package frame and are used for driving vacuum cavity lifting movement. The utility model realizes only adopting one seal head opening and closing drive arrangement to drive two seal heads to constrain the heat sealing action track to the horizontal axial clamping electric core shell and carry out hot -press package, so that it can arrange the linear position of the traditional battery package mechanism according to the production capacity and optimize as array position arrangement, to improve synchronism, coordination and compact structure, and especially suitable for narrow operation space use and effectively prevent the risk of electrolyte leakage in the package process.

Description

Technical Field

[0001] This utility model relates to the field of hot press forming machines, and in particular to a multi-station synchronous hot press forming machine for housings. Background Technology

[0002] Vacuum packaging of battery cells features excellent sealing performance, stable processes, and consistent quality. Through a high-temperature, high-pressure process in a vacuum environment, the packaging material (such as aluminum-plastic film) melts and bonds together, forming a high-barrier sealing structure. This effectively isolates the internal battery cell from external moisture, oxygen, and impurities, ensuring the cell operates in a vacuum, oxygen-free, and water-free environment, preventing electrolyte oxidation or decomposition. Vacuum packaging ensures consistency throughout the process by controlling chamber pressure, temperature, and pressure parameters. After packaging, tensile and resistance tests are performed to ensure sealing strength and electrical insulation. Traditional battery packaging mechanisms employ a dual-drive, laterally opposing thermopressing structure. Each end cap requires one drive unit, and two end caps require two drive units. The need for two opposing drive units in a single thermopressing mechanism significantly increases its size, making it difficult to adapt to confined working spaces. Furthermore, it suffers from poor synchronization and coordination. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-station synchronous hot pressing molding machine for housings.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The multi-station housing synchronous hot pressing molding machine includes a packaging frame, several packaging groups, a vacuum chamber, a first cover plate lifting drive device and a second cover plate lifting drive device. The vacuum chamber is slidably mounted on the packaging frame, and several packaging groups are mounted on the vacuum chamber and used to heat and seal the battery cell housing. The first cover plate lifting drive device and the second cover plate lifting drive device are respectively mounted on both sides of the packaging frame and used to drive the vacuum chamber to move up and down.

[0005] Preferably, the vacuum chamber includes a top cavity plate, several clamps, an upper vacuum chamber, and a lower vacuum chamber. The top cavity plate is slidably mounted on the packaging frame, the upper vacuum chamber is slidably mounted on the packaging frame and located below the top cavity plate, several clamps are mounted on the outer surface of the upper vacuum chamber and are used to quickly lock the upper vacuum chamber to the bottom of the top cavity plate, and the lower vacuum chamber is located below the upper vacuum chamber and is fixedly installed with the upper vacuum chamber.

[0006] Preferably, the clamp is a quick clamp.

[0007] Specifically, the encapsulation assembly includes a first linear guide rail, a second linear guide rail, a first encapsulation mechanism, and a second encapsulation mechanism. The first linear guide rail and the second linear guide rail are respectively mounted on the bottom surface of the top cavity plate and are arranged in parallel. The first encapsulation mechanism and the second encapsulation mechanism are slidably connected to the first linear guide rail and the second linear guide rail, respectively.

[0008] Specifically, the first packaging mechanism includes a head opening and closing drive device, several support rods, a guide assembly, a sealing gasket, a first drive arm, a second drive arm, a first clamping assembly, and a second clamping assembly. The sealing gasket is installed on the top surface of the top cavity plate. The guide assembly is slidably mounted on the sealing gasket. Several support rods are vertically mounted on the sealing gasket. The head opening and closing drive device is installed on the upper end of several support rods, and the output end of the head opening and closing drive device is connected to the upper end of the guide assembly. The upper ends of the first drive arm and the second drive arm are rotatably connected to the lower end of the guide assembly, respectively. The first clamping assembly and the second clamping assembly are slidably mounted on the first linear guide rail and the second linear guide rail, respectively. The lower end of the first drive arm is rotatably connected to the first clamping assembly, and the lower end of the second drive arm is rotatably connected to the second clamping assembly.

[0009] The first clamping component and the second clamping component are arranged facing each other.

[0010] Specifically, the first clamping assembly includes a first mounting base, a first clamping arm, a first heating element, and a first end cap. The first clamping arm is slidably mounted on a first linear guide rail and a second linear guide rail. The first mounting base is mounted on the first clamping arm and is rotatably connected to the first drive arm. The first heating element is mounted on the first clamping arm, and the first end cap is mounted on the first heating element.

[0011] Specifically, the second clamping assembly includes a second mounting base, a second clamping arm, a second heating element, and a second end cap. The second clamping arm is slidably mounted on the first linear guide rail and the second linear guide rail, and the second clamping arm is mirror-symmetrically arranged with the first clamping arm. The second mounting base is mounted on the second clamping arm and is rotatably connected to the second drive arm. The second mounting base is mirror-symmetrically arranged with the first mounting base. The second heating element is mounted on the second clamping arm and is mirror-symmetrically arranged with the first heating element. The second end cap is mounted on the second heating element and is mirror-symmetrically arranged with the first end cap.

[0012] Specifically, the guide assembly includes a connecting block, a first linear guide rod, a second linear guide rod, and a drive seat. The first and second linear guide rods are slidably mounted on the sealing gasket. The upper ends of the first and second linear guide rods are connected to the connecting block, and the lower ends of the first and second linear guide rods are connected to the drive seat. The connecting block is connected to the output end of the head opening and closing drive device. The drive seat is rotatably connected to the first drive arm and the second drive arm, respectively.

[0013] Specifically, the structure and working principle of the second packaging mechanism are the same as those of the first packaging mechanism.

[0014] Specifically, the vacuum chamber is equipped with a vacuum connector and a pressure gauge.

[0015] Preferably, a controller or control system is provided for signal control of the first cover plate lifting drive device, the second cover plate lifting drive device and the encapsulation group, etc. The controller is a PLC programmable logic controller. The PLC programmable logic controller can be a programmable logic controller of model XDS-40T-D, but is not limited thereto.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: its overall structural design, through a composite structure in which the first and second driving arms are hinged to the first and second clamping components respectively, and the first and second clamping components are slidably connected to the first and second linear guide rails respectively, enables the longitudinally arranged end cap opening and closing driving device to drive the first and second clamping components to close together for hot-press sealing of the battery cell casing. This achieves the constraint of the hot-sealing action trajectory on the horizontal axis, allowing the linear station arrangement of the traditional battery packaging mechanism to be optimized into an array station arrangement according to production capacity within the same space. It not only improves synchronization, coordination, and structural compactness, but also achieves a small overall size, simpler structure, and lower manufacturing cost, making it particularly suitable for use in narrow working spaces and effectively blocking the risk of electrolyte leakage during the encapsulation process. It ensures good hot-press encapsulation effect, high efficiency, and good quality of the cell housing. It effectively solves the problems of traditional battery encapsulation mechanisms that require two driving devices to drive the two end caps, resulting in large size, complex structure, high manufacturing cost, poor synchronization, poor coordination, and difficulty in adapting to narrow working spaces. Attached Figure Description

[0017] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0018] Figure 1 This is a perspective view of the multi-station synchronous hot pressing molding machine for housings according to this utility model.

[0019] Figure 2 This is a schematic diagram of the disassembly and packaging assembly of the multi-station housing synchronous hot pressing molding machine of this utility model.

[0020] Figure 3 This is a three-dimensional structural view of the packaging assembly of the multi-station synchronous hot pressing molding machine for housings according to this utility model.

[0021] Figure 4 This is a three-dimensional structural view of the first or second packaging mechanism of the multi-station housing synchronous hot pressing molding machine of this utility model.

[0022] Figure 5 This is an assembly perspective view of the head opening and closing drive device, guide assembly, first linear guide rail, second linear guide rail, first clamping assembly and second clamping assembly of the multi-station shell synchronous hot pressing molding machine of this utility model. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0025] Reference Figure 1 As shown, the multi-station synchronous hot pressing molding machine for battery cell housings of this utility model includes a packaging frame 1, several packaging groups 2, a vacuum chamber 3, a first cover plate lifting drive device 4, and a second cover plate lifting drive device 5. The vacuum chamber 3 is slidably mounted on the packaging frame 1. Several packaging groups 2 are mounted on the vacuum chamber 3 and are used to heat and seal the battery cell housing. The first cover plate lifting drive device 4 and the second cover plate lifting drive device 5 are mounted on both sides of the packaging frame 1 and are used to drive the vacuum chamber 3 to move up and down.

[0026] Reference Figure 2 As shown, the vacuum chamber 3 includes a top cavity plate 6, several clamps 7, an upper vacuum chamber 8, and a lower vacuum chamber 9. The top cavity plate 6 is slidably mounted on the packaging frame 1. The upper vacuum chamber 8 is slidably mounted on the packaging frame 1 and located below the top cavity plate 6. Several clamps 7 are mounted on the outer surface of the upper vacuum chamber 8 and are used to quickly lock the upper vacuum chamber 8 to the bottom of the top cavity plate 6. The lower vacuum chamber 9 is located below the upper vacuum chamber 8 and is fixedly installed with the upper vacuum chamber 8.

[0027] By adopting the above technical solution, the upper vacuum chamber 8 can be quickly disassembled and assembled with the top chamber plate 6 through the clamp 7, which makes maintenance simple and convenient, time-saving and labor-saving, and highly efficient.

[0028] Reference Figure 1 and Figure 2As shown, in this embodiment, both the first cover plate lifting drive device 4 and the second cover plate lifting drive device 5 are preferably cylinders. The packaging frame 1 includes a packaging top plate 12, two sets of guide rods 13, and two parallel packaging foot plates 14. One packaging foot plate 14 is connected to one end of the packaging top plate 12 via a set of guide rods 13, and the other packaging foot plate 14 is connected to the other end of the packaging top plate 12 via another set of guide rods 13. Each set of guide rods 12 has at least two rods. The first cover plate lifting drive device 4 and the second cover plate lifting drive device 5 are respectively longitudinally mounted on the two packaging foot plates 14.

[0029] Reference Figure 3 As shown, the packaging group 2 includes a first linear guide rail 21, a second linear guide rail 22, a first packaging mechanism 23, and a second packaging mechanism 24. The first linear guide rail 21 and the second linear guide rail 22 are respectively mounted on the bottom surface of the top cavity plate 6, and the first linear guide rail 21 and the second linear guide rail 22 are arranged in parallel. The first packaging mechanism 23 and the second packaging mechanism 24 are slidably connected to the first linear guide rail 21 and the second linear guide rail 22, respectively.

[0030] Reference Figure 4 and Figure 5 As shown, the first packaging mechanism 23 includes a head opening and closing drive device 231, several support rods 232, a guide assembly 233, a sealing gasket 234, a first drive arm 235, a second drive arm 236, a first clamping assembly 237, and a second clamping assembly 238. The sealing gasket 234 is mounted on the top surface of the top cavity plate 6. The guide assembly 233 is slidably mounted on the sealing gasket 234. Several support rods 232 are vertically mounted on the sealing gasket 234. The head opening and closing drive device 231 is mounted on the upper end of the several support rods 232 and drives the head opening and closing. The output end of the actuator 231 is connected and installed to the upper end of the guide assembly 233. The upper ends of the first drive arm 235 and the second drive arm 236 are rotatably connected to the lower end of the guide assembly 233, respectively. The first clamping assembly 237 and the second clamping assembly 238 are slidably mounted on the first linear guide rail 21 and the second linear guide rail 22, respectively. The lower end of the first drive arm 235 is rotatably connected to the first clamping assembly 237, and the lower end of the second drive arm 236 is rotatably connected to the second clamping assembly 238. The first clamping assembly 237 and the second clamping assembly 238 are arranged facing each other. In this embodiment, the end cap opening and closing drive device 231 is preferably a cylinder.

[0031] By adopting the above technical solution, the head opening and closing drive device 231 drives the guide assembly 233 to slide up and down on the sealing gasket 234. The guide assembly 233 drives the first clamping assembly 237 and the second clamping assembly 238 to move closer or further away from each other on the first linear guide rail 21 and the second linear guide rail 22 through the first drive arm 235 and the second drive arm 236. When the first drive arm 235 and the second drive arm 236 move closer to each other, they clamp and seal the battery cell housing.

[0032] Reference Figure 4 and Figure 5 As shown, the first clamping assembly 237 includes a first mounting base 2371, a first clamping arm 2372, a first heating element 2373, and a first end cap 2374. The first clamping arm 2372 is slidably mounted on the first linear guide rail 21 and the second linear guide rail 22. The first mounting base 2371 is mounted on the first clamping arm 2372 and is rotatably connected to the first drive arm 235. The first heating element 2373 is mounted on the first clamping arm 2372, and the first end cap 2374 is mounted on the first heating element 2373.

[0033] Reference Figure 4 and Figure 5 As shown, the second clamping assembly 238 includes a second mounting base 2381, a second clamping arm 2382, a second heating element 2383, and a second end cap 2384. The second clamping arm 2382 is slidably mounted on the first linear guide rail 21 and the second linear guide rail 22, and the second clamping arm 2382 is mirror-symmetrically arranged with the first clamping arm 2372. The second mounting base 2381 is mounted on the second clamping arm 2382, and the second mounting base 2381 is rotatably connected to the second drive arm 236, and the second mounting base 2381 is mirror-symmetrically arranged with the first mounting base 2371. The second heating element 2383 is mounted on the second clamping arm 2382, and the second heating element 2383 is mirror-symmetrically arranged with the first heating element 2373. The second end cap 2384 is mounted on the second heating element 2383, and the second end cap 2384 is mirror-symmetrically arranged with the first end cap 2374.

[0034] By adopting the above technical solution, the end cap opening and closing drive device 231 drives the first clamping assembly 237 and the second clamping assembly 238 to move closer together via the guide assembly 233, the first drive arm 235, and the second drive arm 236. The first heating element 2373 and the second heating element 2383 are externally powered to generate heat, and the first heating element 2373 and the second heating element 2383 respectively conduct heat to the first end cap 2374 and the second end cap 2384. This achieves the goal of driving the first end cap 2374 and the second end cap 2384 using only one end cap opening and closing drive device 231. The 84 clamps the cell housing for thermopressing encapsulation, achieving a compact size, simple structure, low manufacturing cost, and suitability for use in narrow working spaces. Furthermore, the first end cap 2374 and the second end cap 2384 exhibit good synchronization in thermopressing encapsulation, resulting in a good thermopressing encapsulation effect and high quality for the cell housing. This solves the problems of traditional battery encapsulation mechanisms that require two driving devices to drive the two end caps, leading to poor synchronization, complex structure, high manufacturing cost, large size, and difficulty in adapting to narrow working spaces.

[0035] Reference Figure 4 and Figure 5 As shown, the guide assembly 233 includes a connecting block 2331, a first linear guide rod 2332, a second linear guide rod 2333, and a drive seat 2334. The first linear guide rod 2332 and the second linear guide rod 2333 are slidably mounted on the sealing gasket 234. The upper ends of the first linear guide rod 2332 and the second linear guide rod 2333 are connected to the connecting block 2331, and the lower ends of the first linear guide rod 2332 and the second linear guide rod 2333 are connected to the drive seat 2334. The connecting block 2331 is connected to the output end of the end cap opening and closing drive device 231. The drive seat 2334 is rotatably connected to the first drive arm 235 and the second drive arm 236, respectively. The structure and working principle of the second packaging mechanism 24 are the same as those of the first packaging mechanism 23.

[0036] In this embodiment, the upper ends of the first drive arm 235 and the second drive arm 236 are rotatably connected to the drive seat 2334 of the guide assembly 233 via the first rotating shaft 15, the lower end of the first drive arm 235 is rotatably connected to the first mounting seat 2371 via the second rotating shaft 16, and the lower end of the second drive arm 236 is rotatably connected to the second mounting seat 2381 via the third rotating shaft 17.

[0037] Reference Figure 2 As shown, a vacuum connector 10 and a pressure gauge 11 are respectively installed on the vacuum chamber 3.

[0038] By adopting the above technical solution, a composite structure is used in which the first drive arm 235 and the second drive arm 236 are respectively hinged to the first clamping component 237 and the second clamping component 238, and the first clamping component 237 and the second clamping component 238 are respectively slidably connected to the first linear guide rail 21 and the second linear guide rail 22. The first clamping component 237 and the second clamping component 238 are driven to close together by the longitudinally arranged end cap opening and closing drive device 231 to perform hot-press packaging of the battery cell shell. This replaces the traditional structure that requires two drive devices to drive the two end caps to close together, making the hot-press packaging equipment compact and low in cost. It also achieves an array layout of the packaging mechanism in the same space.

[0039] Reference Figures 1 to 5 As shown, the multi-station synchronous hot-pressing molding machine for battery cells is located on the battery cell conveying line. During operation, the first cover plate lifting drive device 4 and the second cover plate lifting drive device 5 drive the vacuum chamber 3 and several encapsulation groups 2 to descend onto the battery cell conveying line. The vacuum chamber 3 is sealed to the corresponding station on the battery cell conveying line. Since the vacuum connector 10 is connected to an external vacuum system, the vacuum system evacuates the vacuum chamber 3. Several encapsulation groups 2 perform hot-pressing encapsulation on the battery cell housing. The pressure gauge 11 displays the air pressure inside the vacuum chamber 3 in real time. Each encapsulation group 2 contains two encapsulation mechanisms. Several encapsulation groups 2 can be arranged sequentially according to production capacity optimization to achieve an array layout of multiple encapsulation mechanisms. This improves synchronization and replaces the traditional linear layout of multiple encapsulation mechanisms, thereby improving the efficiency and effect of vacuum hot-pressing encapsulation of the battery cell housing and effectively preventing the risk of electrolyte leakage during the encapsulation process.

[0040] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-station synchronous hot pressing molding machine for housings, characterized in that: It includes a packaging frame, several packaging groups, a vacuum chamber, a first cover plate lifting drive device and a second cover plate lifting drive device. The vacuum chamber is slidably mounted on the packaging frame. Several packaging groups are mounted on the vacuum chamber and are used to heat and seal the battery cell housing. The first cover plate lifting drive device and the second cover plate lifting drive device are respectively mounted on both sides of the packaging frame and are used to drive the vacuum chamber to move up and down.

2. The multi-station synchronous hot pressing molding machine for housings according to claim 1, characterized in that: The vacuum chamber includes a top cavity plate, several clamps, an upper vacuum chamber, and a lower vacuum chamber. The top cavity plate is slidably mounted on the packaging frame. The upper vacuum chamber is slidably mounted on the packaging frame and located below the top cavity plate. Several clamps are mounted on the outer surface of the upper vacuum chamber and are used to quickly lock the upper vacuum chamber to the bottom of the top cavity plate. The lower vacuum chamber is located below the upper vacuum chamber and is fixedly installed with the upper vacuum chamber.

3. The multi-station synchronous hot pressing molding machine for housings according to claim 2, characterized in that: The encapsulation assembly includes a first linear guide rail, a second linear guide rail, a first encapsulation mechanism, and a second encapsulation mechanism. The first linear guide rail and the second linear guide rail are respectively mounted on the bottom surface of the top cavity plate and are arranged in parallel. The first encapsulation mechanism and the second encapsulation mechanism are slidably connected to the first linear guide rail and the second linear guide rail, respectively.

4. The multi-station synchronous hot pressing molding machine for housings according to claim 3, characterized in that: The first packaging mechanism includes a head opening and closing drive device, several support rods, a guide assembly, a sealing gasket, a first drive arm, a second drive arm, a first clamping assembly, and a second clamping assembly. The sealing gasket is installed on the top surface of the top cavity plate. The guide assembly is slidably mounted on the sealing gasket. Several support rods are vertically mounted on the sealing gasket. The head opening and closing drive device is installed on the upper end of several support rods, and the output end of the head opening and closing drive device is connected to the upper end of the guide assembly. The upper ends of the first drive arm and the second drive arm are rotatably connected to the lower end of the guide assembly, respectively. The first clamping assembly and the second clamping assembly are slidably mounted on the first linear guide rail and the second linear guide rail, respectively. The lower end of the first drive arm is rotatably connected to the first clamping assembly, and the lower end of the second drive arm is rotatably connected to the second clamping assembly. The first clamping component and the second clamping component are arranged facing each other.

5. The multi-station synchronous hot pressing molding machine for housings according to claim 4, characterized in that: The first clamping assembly includes a first mounting base, a first clamping arm, a first heating element, and a first end cap. The first clamping arm is slidably mounted on a first linear guide rail and a second linear guide rail. The first mounting base is mounted on the first clamping arm and is rotatably connected to the first drive arm. The first heating element is mounted on the first clamping arm, and the first end cap is mounted on the first heating element.

6. The multi-station synchronous hot pressing molding machine for housings according to claim 5, characterized in that: The second clamping assembly includes a second mounting base, a second clamping arm, a second heating element, and a second end cap. The second clamping arm is slidably mounted on the first linear guide rail and the second linear guide rail, and the second clamping arm is mirror-symmetrical to the first clamping arm. The second mounting base is mounted on the second clamping arm and is rotatably connected to the second drive arm. The second mounting base is mirror-symmetrical to the first mounting base. The second heating element is mounted on the second clamping arm and is mirror-symmetrical to the first heating element. The second end cap is mounted on the second heating element and is mirror-symmetrical to the first end cap.

7. The multi-station synchronous hot pressing molding machine for housings according to claim 6, characterized in that: The guiding assembly includes a connecting block, a first linear guide rod, a second linear guide rod, and a drive seat. The first and second linear guide rods are slidably mounted on the sealing gasket. The upper ends of the first and second linear guide rods are connected to the connecting block, and the lower ends of the first and second linear guide rods are connected to the drive seat. The connecting block is connected to the output end of the head opening and closing drive device. The drive seat is rotatably connected to the first drive arm and the second drive arm, respectively.

8. The multi-station synchronous hot pressing molding machine for housings according to claim 7, characterized in that: The structure and working principle of the second packaging mechanism are the same as those of the first packaging mechanism.

9. The multi-station synchronous hot pressing molding machine for housings according to claim 1, characterized in that: The vacuum chamber is equipped with a vacuum connector and a pressure gauge.

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