PCM molding die for new energy vehicle battery cover

Abstract

This utility model provides a PCM molding die for a new energy vehicle battery cover, belonging to the field of stamping die technology. It includes an upper die and a lower die, which are respectively fixed on an upper die mounting base and a lower die mounting base. A stamping cavity for the battery cover is formed between the upper and lower dies. An upper heating structure and a lower heating structure are respectively provided inside the upper and lower dies. An anti-sticking, heat-insulating ejection mechanism is also provided on the upper and lower dies. By providing an anti-sticking, heat-insulating ejection mechanism on the upper and lower dies, in conjunction with the upper and lower heating structures, the required temperature for hot pressing is ensured. Simultaneously, the anti-sticking, heat-insulating ejection mechanism solves the problem of adhesion between alloy PCM and the die, as well as the problem of adhesion between the ejector rod and the product in traditional ejection mechanisms, ensuring that the battery cover can be smoothly detached from the die, improving the demolding efficiency and quality of the formed product.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, and relates to a PCM molding die for a new energy vehicle battery cover. Background Technology

[0002] New energy vehicle battery covers made of PCM material are generally formed by hot pressing. Alloy PCM is prone to sticking to the mold after hot pressing. Currently, the mold uses an ejector mechanism to eject the product from the mold. However, the ejector rods of the ejector mechanism in the existing technology are mostly made of metal, and there is also a risk of sticking between the ejector rod and the product.

[0003] For example, Chinese patent discloses a method and mold for forming a battery cover for a new energy vehicle [application number: 202411938658.7], which includes an upper mold, a pressure ring, and a lower mold. The pressure ring is disposed between the upper mold and the lower mold. A pressure ring insert is fixed on the pressure ring. An upper mold insert is disposed on the upper mold. The pressure ring insert and the upper mold insert are disposed opposite each other. A gap is left between the pressure ring insert and the edge of the pressure ring. A gap is left between the upper mold insert and the edge of the upper mold. At least one pressure pad is disposed on the back of the upper mold. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a PCM molding die for a new energy vehicle battery cover.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A PCM molding die for a battery cover of a new energy vehicle includes an upper die and a lower die, which are respectively fixed on an upper die mounting base and a lower die mounting base. A battery cover stamping cavity can be formed between the upper die and the lower die. An upper heating structure and a lower heating structure are respectively provided in the upper die and the lower die. An anti-sticking, heat-insulating, and ejection mechanism is also provided on the upper die and the lower die.

[0007] In the aforementioned new energy vehicle battery cover PCM molding die, the anti-sticking and heat-insulating ejection mechanism includes several upper ejection components disposed on the upper mold and several lower ejection components disposed on the lower mold.

[0008] Both the upper and lower detachment components include a lifting drive component and an anti-stick heat insulation kit. The anti-stick heat insulation kit is located at the drive end of the lifting drive component and connected to the stamping cavity of the battery cover. The drive end of the lifting drive component in the upper detachment component is vertically downward, and the drive end of the lifting drive component in the lower detachment component is vertically upward.

[0009] In the aforementioned new energy vehicle battery cover PCM molding die, the lifting drive assembly includes a lifting driver, the drive end of which is fixedly connected to a push rod, and the anti-stick heat insulation kit is disposed at the end of the push rod away from the lifting driver.

[0010] In the aforementioned new energy vehicle battery cover PCM molding die, the anti-stick heat insulation kit includes a heat insulation sleeve made of ceramic-based heat insulation material, which is detachably mounted on the end of the top rod away from the lifting drive.

[0011] In the aforementioned PCM molding die for a new energy vehicle battery cover, the end of the push rod away from the lifting driver has a threaded rod with an outer diameter smaller than that of the push rod, and the heat insulation sleeve is screwed and fixed on the threaded rod.

[0012] In the aforementioned PCM molding die for new energy vehicle battery covers, the outer diameter of the heat insulation sleeve is smaller than the outer diameter of the push rod.

[0013] In the aforementioned PCM molding die for new energy vehicle battery covers, the upper ejector assembly is disposed between the upper mold and the upper mold mounting base, and there are five upper ejector assemblies.

[0014] In the aforementioned PCM molding die for new energy vehicle battery covers, the lower ejector assembly is disposed between the lower die and the lower die mounting base, and there are seven lower ejector assemblies.

[0015] In the aforementioned PCM molding die for new energy vehicle battery covers, the upper heating structure includes several upper heating medium flow channels disposed on the upper mold.

[0016] In the aforementioned PCM molding die for new energy vehicle battery covers, the lower heating structure includes several lower heating medium channels disposed on the lower die.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] 1. By setting anti-sticking and heat-insulating ejection mechanisms on the upper and lower molds, and cooperating with the upper and lower heating structures, the required temperature for hot pressing is ensured. At the same time, the anti-sticking and heat-insulating ejection mechanism solves the problem of adhesion between alloy PCM and the mold, as well as the problem of adhesion between the ejector rod and the product in traditional ejection mechanisms, ensuring that the battery cover can be smoothly removed from the mold, improving the demolding efficiency and quality of the molded product.

[0019] 2. The anti-stick and heat-insulating ejection mechanism consists of an upper ejection component and a lower ejection component, both of which include a lifting drive component and an anti-stick and heat-insulating kit. The lifting drive component can drive the anti-stick and heat-insulating kit to lift and lower, precisely acting on the product inside the stamping cavity of the battery cover. The anti-stick and heat-insulating kit is in direct contact with the product, which not only avoids the product from sticking to the ejection component, but also plays a role in heat insulation, preventing excessive heat from the heating structure from being transferred to the ejection component and affecting its performance.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the present invention;

[0022] Figure 2 This is a schematic diagram of the upper heating structure;

[0023] Figure 3 This is a schematic diagram of the lower mold structure;

[0024] Figure 4 This is a schematic diagram of the lower heating structure;

[0025] Figure 5 This is a partial structural diagram of the anti-sticking and heat-insulating detachment mechanism;

[0026] Figure 6 This is a structural diagram of the lifting drive assembly. Detailed Implementation

[0027] like Figures 1-6 As shown, a PCM molding die for a new energy vehicle battery cover includes an upper die 1 and a lower die 2. The upper die 1 and the lower die 2 are respectively fixed on an upper die mounting base 3 and a lower die mounting base 4. A battery cover stamping cavity 5 can be formed between the upper die 1 and the lower die 2. An upper heating structure 6 and a lower heating structure 7 are respectively provided in the upper die 1 and the lower die 2. An anti-sticking, heat-insulating, and ejection mechanism is also provided on the upper die 1 and the lower die 2.

[0028] In this invention, an anti-sticking and heat-insulating ejection mechanism is set on the upper and lower molds. The upper and lower heating structures ensure the temperature required for hot pressing. At the same time, the anti-sticking and heat-insulating ejection mechanism solves the problem of adhesion between alloy PCM and the mold, as well as the problem of adhesion between the ejector rod and the product in traditional ejection mechanisms. This ensures that the battery cover can be smoothly removed from the mold, improving the demolding efficiency and quality of the molded product.

[0029] Specifically, the anti-sticking and heat-insulating ejection mechanism includes several upper ejection components 8 disposed on the upper mold 1 and several lower ejection components 9 disposed on the lower mold 2. Both the upper ejection components 8 and lower ejection components 9 include a lifting drive component 10 and an anti-sticking and heat-insulating kit 11. The anti-sticking and heat-insulating kit 11 is disposed at the drive end of the lifting drive component 10 and connected to the battery cover stamping cavity 5. The drive end of the lifting drive component 10 in the upper ejection component 8 is vertically downward, and the drive end of the lifting drive component 10 in the lower ejection component 9 is vertically upward. The anti-sticking and heat-insulating ejection mechanism consists of upper and lower ejection components, both of which include a lifting drive component and an anti-sticking and heat-insulating kit. The lifting drive component can drive the anti-sticking and heat-insulating kit to move up and down, precisely acting on the product within the battery cover stamping cavity. The anti-sticking and heat-insulating kit directly contacts the product, preventing adhesion between the product and the ejection component while also providing heat insulation to prevent excessive heat transfer from the heating structure to the ejection component, thus affecting its performance. This structure solves the problems of traditional ejection mechanisms that rely on a single ejector rod, are prone to sticking, and lack heat insulation. It makes the demolding process more stable, while protecting the ejection mechanism components from high temperatures and extending their service life.

[0030] Specifically, the lifting drive assembly 10 includes a lifting driver 12, the drive end of which is fixedly connected to a push rod 13. The anti-stick heat insulation kit 11 is located at the end of the push rod 13 away from the lifting driver 12. The lifting drive assembly adopts a design where the lifting driver and push rod cooperate. One end of the push rod is fixedly connected to the drive end of the lifting driver, and the other end is fitted with the anti-stick heat insulation kit. The lifting driver provides stable power for the lifting of the push rod, ensuring that the push rod drives the anti-stick heat insulation kit to accurately act on the product, achieving reliable demolding. This design solves the problems of unstable power transmission and inaccurate demolding position in traditional ejection mechanisms, ensuring the accuracy and stability of the demolding action and further reducing the risk of product damage or adhesion due to ejection position deviation.

[0031] Those skilled in the art should understand that the lifting drive can be a hydraulic cylinder, a pneumatic cylinder, or a linear motor, etc.

[0032] Specifically, the anti-stick heat insulation kit 11 includes a heat insulation sleeve 14 made of ceramic-based heat insulation material, which is detachably mounted on the end of the ejector rod 13 away from the lifting drive 12. The heat insulation sleeve in the anti-stick heat insulation kit is made of ceramic-based heat insulation material and is detachably mounted on the end of the ejector rod. The ceramic-based heat insulation material not only has excellent anti-stick properties, effectively preventing adhesion to the PCM battery cover, but also has good heat insulation effects, reducing heat transfer from the heating structure to the ejector rod. The detachable design facilitates the replacement and maintenance of the heat insulation sleeve. When the heat insulation sleeve wears or its anti-stick performance deteriorates, it is not necessary to replace the entire ejector rod, reducing maintenance costs. This design solves the problem of traditional ejector mechanisms having no anti-stick heat insulation function and high component replacement costs, improving demolding reliability and equipment maintenance convenience.

[0033] Specifically, ceramic-based thermal insulation materials can be alumina ceramics, zirconia ceramics, silicon nitride ceramics, etc.

[0034] Specifically, the end of the top rod 13 furthest from the lifting drive 12 has a threaded rod 15 with an outer diameter smaller than that of the top rod 13. The heat insulation sleeve 14 is threadedly fixed to the threaded rod 15. The end of the top rod has a threaded rod with an outer diameter smaller than that of the top rod. The heat insulation sleeve is fixed to the threaded rod by a threaded connection. This threaded connection ensures a firm connection between the heat insulation sleeve and the top rod, preventing the heat insulation sleeve from loosening or falling off during the jacking process, and also facilitates disassembly and replacement. Compared to other connection methods, the threaded structure is simple and reliable, and installation and disassembly are convenient, allowing for quick replacement and maintenance of the heat insulation sleeve. This design solves the problems of weak connection and inconvenient replacement between the heat insulation sleeve and the top rod, ensuring the stable operation of the anti-stick heat insulation jacking mechanism and improving maintenance efficiency.

[0035] Specifically, the outer diameter of the heat insulation sleeve 14 is smaller than the outer diameter of the ejector pin 13. This smaller outer diameter design prevents the ejector pin from interfering with other parts of the mold during lifting and lowering. It also ensures that the heat insulation sleeve can accurately extend into the stamping cavity of the battery cover and contact the product without affecting the sealing of the molding space inside the mold. In addition, the smaller outer diameter of the heat insulation sleeve reduces the contact area with the product, reducing the risk of adhesion that may occur due to excessive contact area while ensuring the demolding effect. This design solves the problem of interference between the heat insulation sleeve and mold components and the impact on the molding space, thus improving the stability of mold operation.

[0036] Specifically, the upper ejector assembly 8 is located between the upper mold 1 and the upper mold mounting base 3, and there are five upper ejector assemblies 8. The lower ejector assembly 9 is located between the lower mold 2 and the lower mold mounting base 4, and there are seven lower ejector assemblies 9.

[0037] Specifically, the upper heating structure 6 includes several upper heating medium channels 16 disposed on the upper mold 1, and the lower heating structure 7 includes several lower heating medium channels 17 disposed on the lower mold 2. The upper heating structure and the lower heating structure are respectively composed of several upper heating medium channels and lower heating medium channels. By introducing high-temperature medium into the upper heating medium channels and the lower heating medium channels, the temperature required for hot pressing can be ensured.

[0038] The working principle of this utility model is as follows: by setting an anti-sticking and heat-insulating ejection mechanism on the upper and lower molds, and cooperating with the upper and lower heating structures to ensure the temperature required for hot pressing, the anti-sticking and heat-insulating ejection mechanism solves the problem of adhesion between alloy PCM and the mold, as well as the problem of adhesion between the ejector rod and the product in the traditional ejection mechanism, ensuring that the battery cover can be smoothly removed from the mold, and improving the demolding efficiency and quality of the product after molding.

[0039] The anti-stick heat insulation ejection mechanism consists of an upper ejection assembly and a lower ejection assembly, both of which include a lifting drive assembly and an anti-stick heat insulation kit. The lifting drive assembly can drive the anti-stick heat insulation kit to move up and down, precisely acting on the product inside the stamping cavity of the battery cover. The anti-stick heat insulation kit is in direct contact with the product, which not only prevents the product from sticking to the ejection component, but also provides heat insulation, preventing excessive heat transfer from the heating structure to the ejection component and affecting its performance. The lifting drive assembly adopts a design that combines a lifting driver and an ejector rod. One end of the ejector rod is fixedly connected to the driving end of the lifting driver, and the other end is equipped with the anti-stick heat insulation kit. The lifting driver can provide stable power for the lifting of the ejector rod, ensuring that the ejector rod drives the anti-stick heat insulation kit to act precisely on the product, achieving reliable demolding.

[0040] The heat insulation sleeve in the anti-stick heat insulation kit is made of ceramic-based heat insulation material and is detachably installed at the end of the ejector rod. The ceramic-based heat insulation material not only has excellent anti-stick properties, effectively preventing adhesion to the PCM battery cover, but also has good heat insulation performance, reducing heat transfer from the heating structure to the ejector rod. The detachable design facilitates the replacement and maintenance of the heat insulation sleeve. When the heat insulation sleeve wears or its anti-stick performance deteriorates, there is no need to replace the entire ejector rod, reducing maintenance costs. A threaded rod with an outer diameter smaller than the ejector rod is provided at the end of the ejector rod. The heat insulation sleeve is fixed to the threaded rod by a screw connection. This screw connection ensures a firm connection between the heat insulation sleeve and the ejector rod, preventing the heat insulation sleeve from loosening or falling off during ejection, while also facilitating disassembly and replacement. The smaller outer diameter of the heat insulation sleeve compared to the ejector rod prevents interference between the ejector rod and other parts of the mold during lifting and lowering, while ensuring that the heat insulation sleeve can accurately extend into the stamping cavity of the battery cover and contact the product without affecting the sealing of the internal molding space of the mold.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A new energy automobile battery cover PCM molding mold, comprising an upper die (1) and a lower die (2), characterized in that, The upper mold (1) and lower mold (2) are respectively fixed on the upper mold mounting base (3) and the lower mold mounting base (4). A battery cover stamping cavity (5) can be formed between the upper mold (1) and the lower mold (2). An upper heating structure (6) and a lower heating structure (7) are respectively provided in the upper mold (1) and the lower mold (2). An anti-sticking and heat-insulating ejection mechanism is also provided on the upper mold (1) and the lower mold (2).

2. The new energy vehicle battery cover PCM molding mold of claim 1, wherein, The anti-sticking and heat-insulating ejection mechanism includes several upper ejection components (8) disposed on the upper mold (1) and several lower ejection components (9) disposed on the lower mold (2). The upper detachment assembly (8) and the lower detachment assembly (9) both include a lifting drive assembly (10) and an anti-stick heat insulation kit (11). The anti-stick heat insulation kit (11) is disposed at the drive end of the lifting drive assembly (10) and connected to the battery cover stamping cavity (5). The drive end of the lifting drive assembly (10) in the upper detachment assembly (8) is set vertically downward, and the drive end of the lifting drive assembly (10) in the lower detachment assembly (9) is set vertically upward.

3. The new energy vehicle battery cover PCM molding mold of claim 2, wherein, The lifting drive assembly (10) includes a lifting driver (12), and a top rod (13) is fixedly connected to the driving end of the lifting driver (12). The anti-stick heat insulation kit (11) is located at the end of the top rod (13) away from the lifting driver (12).

4. The new energy vehicle battery cover PCM molding mold of claim 3, wherein, The non-stick heat insulation kit (11) includes a heat insulation sleeve (14) made of ceramic-based heat insulation material, which is detachably disposed at the end of the top rod (13) away from the lifting drive (12).

5. The new energy vehicle battery cover PCM molding mold of claim 4, wherein, The top rod (13) has a threaded rod (15) with an outer diameter smaller than that of the top rod (13) at the end away from the lifting drive (12), and the heat insulation sleeve (14) is threaded and fixed on the threaded rod (15).

6. The new energy vehicle battery cover PCM molding mold of claim 5, wherein, The outer diameter of the heat insulation sleeve (14) is smaller than the outer diameter of the top rod (13).

7. The new energy vehicle battery cover PCM molding mold of claim 2, wherein, The upper ejector assembly (8) is disposed between the upper mold (1) and the upper mold mounting base (3), and there are five upper ejector assemblies (8).

8. The new energy vehicle battery cover PCM molding mold of claim 2, wherein, The lower ejector assembly (9) is disposed between the lower mold (2) and the lower mold mounting base (4), and there are seven lower ejector assemblies (9).

9. The new energy vehicle battery cover PCM molding mold of claim 1, wherein, The upper heating structure (6) includes several upper heating medium channels (16) arranged on the upper mold (1).

10. The new energy vehicle battery cover PCM molding mold of claim 8, wherein, The lower heating structure (7) includes several lower heating medium channels (17) disposed on the lower mold (2).

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