Foaming mold

Abstract

The utility model relates to foaming technical field especially, relates to a kind of foaming mould.The foaming mould includes two U-shaped fences, and the fence includes baffle and flexible layer, and the bottom end of baffle is covered with flexible layer.The two ends of one fence are correspondingly spliced and connected with the two ends of another fence to form a square frame, and the square frame is configured to be placed in a foaming area and can be tightly against a non-flat surface, so that the flexible layer is sealed and fitted to the non-flat surface.By splicing the two U-shaped fences into a square frame, the square frame is placed in the foaming area and tightly against the non-flat surface of the foaming area when under pressure, and the flexible layer deforms to adapt to the non-flat surface after being under pressure, so that the flexible layer can be tightly fitted to the non-flat surface, achieving reliable sealing between the flexible layer and the non-flat surface, ensuring good sealing between the foaming mould and the foaming area, improving the foaming quality, avoiding overflow of foaming material from the foaming mould, reducing the workload of cleaning the overflowed foaming material, and improving the foaming efficiency.

Description

Technical Field

[0001] This utility model relates to the field of foaming technology, and in particular to a foaming mold. Background Technology

[0002] During battery production, foaming is performed at the openings of the casing to absorb vibration and impact, reduce mechanical stress on the battery, and extend its lifespan. Simultaneously, the foam fills the gaps between the battery cells, preventing cell displacement due to collisions or vibrations, and also prevents foreign objects from entering the battery, reducing the risk of short circuits.

[0003] Because the battery casing is a stamped part, the surface of the opening (foaming area) is uneven and non-flat. Existing foaming molds struggle to achieve a good seal on such surfaces, leading to insufficient internal pressure during foaming. This causes foaming material to overflow from the mold, resulting in poor density in the finished product and reduced foaming quality. Furthermore, the overflowing material requires subsequent cleaning, increasing workload and reducing foaming efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a foaming mold to ensure the sealing performance between the foaming mold and the non-flat surface of the foaming area, prevent the foaming material from overflowing the foaming mold, and improve the foaming quality and efficiency.

[0005] To achieve this objective, the technical solution adopted by this utility model is as follows:

[0006] A foaming mold for foaming on a non-flat surface of a foaming area; the foaming mold includes two U-shaped enclosures, each enclosure including a baffle and a flexible layer, the bottom end of the baffle being covered with the flexible layer;

[0007] The two ends of one of the enclosures are spliced ​​together with the two ends of the other enclosure to form a square frame. The square frame is configured to be placed in the foaming area and to press against the non-flat surface so that the flexible layer is sealed and adhered to the non-flat surface.

[0008] As an optional solution for the foaming mold, the two ends of the baffle are respectively provided with a first mating part and a second mating part. At each splicing position of the square frame, the first mating part of one baffle is limited to the second mating part of the other baffle.

[0009] As an optional solution for the foaming mold, the first mating part is a protrusion, the second mating part is a limiting groove, one end of the baffle is provided with the protrusion, and the other end of the baffle is provided with the limiting groove;

[0010] At each splicing position of the rectangular frame, the protrusion of one baffle is inserted into the limiting groove of the other baffle.

[0011] As an optional solution for the foaming mold, the top of the protrusion is provided with a first magnetic suction member, and the inner bottom wall of the limiting groove is provided with a second magnetic suction member. The protrusion of one baffle is inserted into the limiting groove of another baffle, and the first magnetic suction member is attracted to the corresponding second magnetic suction member.

[0012] As an optional solution for the foaming mold, the baffle includes a first plate and two second plates, wherein the two ends of the first plate along the length direction are integrally connected to one end of each of the two second plates in a U-shape.

[0013] As an alternative to the foaming mold, each of the second plates has a handle on its outer side away from the other second plate.

[0014] As an optional solution for foaming molds, the outer surface of the baffle is provided with a Teflon coating.

[0015] As an optional solution for the foaming mold, the bottom surface of the flexible layer away from the baffle is provided with at least two ribs, each of the ribs extending to both ends of the enclosure; at least two of the ribs are spaced apart along the width direction of the flexible layer so that a sealing groove is formed between two adjacent ribs.

[0016] As an optional solution for foaming molds, the thickness of the flexible layer is 7mm-10mm.

[0017] As an optional solution for foaming molds, the flexible layer is a silicone layer.

[0018] The beneficial effects of this utility model are as follows:

[0019] The foaming mold proposed in this utility model consists of two U-shaped baffles joined together to form a square frame. The square frame is placed in the foaming area and presses against the non-flat surface of the foaming area when compressed. The flexible layer deforms to match the non-flat surface after being compressed, allowing the flexible layer to fit tightly against the non-flat surface, achieving a reliable seal between the flexible layer and the non-flat surface. This ensures a good seal between the foaming mold and the foaming area, not only avoiding insufficient pressure inside the foaming mold and improving foaming quality, but also preventing foaming material from overflowing from the foaming mold, reducing the workload of cleaning foaming material, and improving foaming efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the foaming mold provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the enclosure provided in this embodiment of the utility model;

[0022] Figure 3 This is an end view of the enclosure provided in an embodiment of this utility model.

[0023] The component names and labels in the diagram are as follows:

[0024] 10. Enclosure; 1. Baffle; 11. First panel; 12. Second panel; 121. Protrusion; 122. Limiting groove; 2. Flexible layer; 21. Rib; 22. Sealing groove; 3. Handle. Detailed Implementation

[0025] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] When performing foaming operations at the opening of the battery casing (foaming area), the surface of the opening is uneven and non-flat. Existing foaming molds struggle to achieve a good seal on such surfaces, leading to insufficient internal pressure during foaming. This causes foaming material to overflow from the mold, resulting in poor density in the finished product and reduced foaming quality. Furthermore, the overflowing foaming material requires subsequent cleaning, increasing workload and reducing foaming efficiency.

[0031] To address the aforementioned issues, this embodiment proposes a foaming mold for foaming on non-flat surfaces in the foaming area. Specifically, the foaming mold in this embodiment is used for foaming operations at the opening of a battery casing. Of course, the foaming mold can also be used for foaming operations on non-flat surfaces of other products or components, and is not specifically limited here.

[0032] like Figure 1 As shown, the foaming mold includes two U-shaped enclosures 10. Each enclosure 10 includes a baffle 1 and a flexible layer 2, with the bottom end of the baffle 1 covered by the flexible layer 2. The two ends of one enclosure 10 are connected to the two ends of the other enclosure 10 in a corresponding manner to form a square frame. The square frame is configured to be placed in the foaming area and press against the non-flat surface, allowing the flexible layer 2 to seal tightly against the non-flat surface. By splicing the two U-shaped enclosures 10 into a square frame, which is placed in the foaming area and presses against the non-flat surface of the foaming area under pressure, the flexible layer 2 deforms to fit the non-flat surface under pressure, enabling it to tightly adhere to the non-flat surface. This achieves a reliable seal between the flexible layer 2 and the non-flat surface, ensuring a good seal between the foaming mold and the foaming area. This not only avoids insufficient pressure within the foaming mold and improves foaming quality but also prevents foam material from overflowing from the mold, reducing the workload of cleaning the foam material and improving foaming efficiency.

[0033] When the battery casing is placed on the base plate of the foaming area, the base plate supports the casing with a pad. The foaming mold is installed at the opening of the casing, and the top cover of the battery is placed over the opening at the top of the foaming mold to seal it effectively. The top cover is pressed down by a pressing component, which presses the top cover against the foaming mold. Under pressure, the flexible layer 2 deforms to fit the non-flat surface of the casing, ensuring a tight fit between the flexible layer 2 and the casing, guaranteeing a circumferential seal between the foaming mold and the casing. Once the foaming material inside the mold has solidified, the foaming mold can be removed from the casing. Since the foaming process is existing technology, the operation steps of the pressing component (which can be used to press the top cover with a cylinder or by tightening the crossbeam with a screw) and the foaming process will not be described in detail.

[0034] It should be noted that when assembling the foaming mold, the two ends of one baffle 1 are connected to the two ends of the other baffle 1 in a one-to-one correspondence, and the two ends of one flexible layer 2 are connected to the two ends of the other flexible layer 2 in a one-to-one correspondence, thereby splicing the two flexible layers 2 together and avoiding gaps at the splicing position. Since the foaming mold is composed of two enclosures 10 spliced ​​together, it has a modular structure, facilitating quick assembly and disassembly, and further improving foaming efficiency. It is understood that the size of the foaming mold can be adaptively selected or adjusted according to the area of ​​the foaming zone, and no specific limitations are made here.

[0035] like Figure 1 and Figure 2 As shown, the baffle 1 includes a first plate 11 and two second plates 12. The two ends of the first plate 11 along its length (front-back direction in the figure) are integrally connected to one end of each of the two second plates 12 in a U-shape. In this embodiment, the baffle 1 is integrally formed, with a simple structure, which facilitates the processing of the baffle 1 and reduces production costs.

[0036] Furthermore, each second plate 12 has a handle 3 on its outer side away from the other second plate 12. This arrangement ensures that each baffle 1 has two handles 3, allowing operators to easily grasp or move the enclosure 10 by holding the handles 3, enabling quick assembly or disassembly of the foaming mold and improving the efficiency of mold assembly and disassembly. Specifically, the handles 3 are screwed to the second plate 12 of the baffle 1, improving the stability of the handle installation.

[0037] In an optional embodiment, the two ends of the baffle 1 are respectively provided with a first mating part and a second mating part. At each splicing position of the square frame, the first mating part of one baffle 1 is in a limiting fit with the second mating part of the other baffle 1. When the two enclosures 10 are spliced, the limiting fit between the first mating part and the corresponding second mating part at the two splicing positions ensures that both ends of one enclosure 10 are connected to both ends of the other enclosure 10, thereby improving the connection strength of the square frame formed by the two enclosures 10 and ensuring the stability of the foaming mold and the sealing performance of the splicing position.

[0038] like Figure 2 As shown, the first mating part is a protrusion 121, and the second mating part is a limiting groove 122. One end of the baffle 1 is provided with a protrusion 121, and the other end of the baffle 1 is provided with a limiting groove 122. At each splicing position of the square frame, the protrusion 121 of one baffle 1 is limited and inserted into the limiting groove 122 of the other baffle 1. When the two enclosures 10 are spliced, the protrusion 121 of one baffle 1 is limited and inserted into the limiting groove 122 of the other baffle 1, and the limiting groove 122 of one baffle 1 is limited and inserted into the protrusion 121 of the other baffle 1. Through the limiting insertion and cooperation of the two sets of protrusions 121 and limiting grooves 122, on the one hand, the connection strength of the two enclosures 10 is ensured, making the structure of the foam mold more stable; on the other hand, it plays a guiding and limiting role in the splicing process of the enclosures 10, so that the two ends of one baffle 1 can be quickly aligned with the two ends of the other baffle 1, improving the assembly efficiency and assembly accuracy of the foam mold.

[0039] In an optional embodiment, a first magnetic attractor is provided at the top of the protrusion 121, and a second magnetic attractor is provided on the inner bottom wall of the limiting groove 122. The protrusion 121 of one baffle 1 is inserted into the limiting groove 122 of the other baffle 1, and the first magnetic attractor and the corresponding second magnetic attractor are attracted to each other. By providing two mutually attracting magnetic attractors, the connection strength of the two enclosures 10 is further improved, making the structure of the foaming mold more stable. The aforementioned magnetic attractors can be permanent magnets. The permanent magnets in the protrusion 121 and the limiting groove 122 of the same baffle 1 have the same polarity, while the permanent magnets of the two baffles 1 have opposite polarities, so that the two baffles 1 can be mutually attracted.

[0040] In this embodiment, the flexible layer 2 is a silicone layer. Because the flexible layer 2 is made of silicone, it is not only low-cost, but also possesses excellent elastic recovery capabilities, allowing it to adhere tightly to irregular surfaces. Specifically, the flexible layer 2 can tightly adhere to the non-flat surface of the foaming area, improving sealing performance. Furthermore, silicone exhibits low compression deformation and strong resilience, adapting to both static and dynamic sealing requirements to meet the needs of foaming. Simultaneously, the silicone flexible layer 2 is unaffected by ozone and ultraviolet radiation, maintaining stable physical properties even after long-term outdoor exposure, and is less prone to aging and cracking, thus extending the lifespan of the foaming mold. In addition, the silicone layer does not adhere to the foaming material, facilitating quick disassembly of the foaming mold after foaming.

[0041] In this embodiment, the outer surface of the baffle 1 is coated with a Teflon coating. A Teflon coating can be formed on the outer surface of the baffle 1 by electroplating, preventing the baffle 1 from sticking to the foaming material. This facilitates quick disassembly of the foaming mold after foaming, saving on subsequent cleaning work. In other embodiments, other coatings can be applied to the outer surface of the baffle 1, as long as they ensure that the baffle 1 does not stick to the foaming material.

[0042] like Figure 3 As shown, at least two ribs 21 protrude from the bottom surface of the flexible layer 2 away from the baffle 1, each rib 21 extending to both ends of the enclosure 10. The at least two ribs 21 are spaced apart along the width direction of the flexible layer 2 (left-right direction in the figure) to form a sealing groove 22 between adjacent ribs 21. By forming the sealing groove 22 between adjacent ribs 21, after being assembled into a foam mold, the sealing grooves 22 of the two flexible layers 2 are joined to form a square sealing groove 22. When the flexible layer 2 is adhered to a non-flat surface, the sealing groove 22 effectively isolates air, further improving the sealing performance between the flexible layer 2 and the non-flat surface.

[0043] In this embodiment, two ribs 21 are provided, and a sealing groove 22 is formed between the two ribs 21. In other embodiments, the number of ribs 21 can also be set to three or four or more, so that the bottom surface of the flexible layer 2 has at least two sealing grooves 22, realizing multiple seals between the foaming mold and the non-flat surface, and further improving the sealing performance of the foaming mold on the non-flat surface.

[0044] It should be noted that the thickness of flexible layer 2 is 7mm-10mm. Specifically, along the height direction (up and down in the figure), the thickness of flexible layer 2 can be 7mm, 8mm, 9mm, or 10mm, etc., to ensure that flexible layer 2 has an appropriate amount of deformation and improve its adaptability to non-flat surfaces. It should be noted that the thickness of flexible layer 2 does not include the thickness of rib 21. If the thickness of flexible layer 2 is too small, the amount of deformation of flexible layer 2 will be insufficient, making it difficult to ensure that flexible layer 2 fits tightly to non-flat surfaces; if the thickness of flexible layer 2 is too large, it will increase the cost of flexible layer 2 and the volume of foaming mold.

[0045] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foaming mold, characterized in that, Used for foaming on a non-flat surface in the foaming area; the foaming mold includes two U-shaped enclosures (10), each enclosure (10) including a baffle (1) and a flexible layer (2), the bottom end of the baffle (1) being covered by the flexible layer (2). The two ends of one of the enclosures (10) are spliced ​​together with the two ends of the other enclosure (10) to form a square frame. The square frame is configured to be placed in the foaming area and to press against the non-flat surface so that the flexible layer (2) is sealed and adhered to the non-flat surface.

2. The foaming mold according to claim 1, characterized in that, The baffle (1) is provided with a first mating part and a second mating part at its two ends respectively. At each splicing position of the square frame, the first mating part of one baffle (1) is limited to the second mating part of the other baffle (1).

3. The foaming mold according to claim 2, characterized in that, The first mating part is a protrusion (121), the second mating part is a limiting groove (122), one end of the baffle (1) is provided with the protrusion (121), and the other end of the baffle (1) is provided with the limiting groove (122). At each splicing position of the square frame, the protrusion (121) of one baffle (1) is inserted into the limiting groove (122) of the other baffle (1).

4. The foaming mold according to claim 3, characterized in that, The top of the protrusion (121) is provided with a first magnetic attractor, and the inner bottom wall of the limiting groove (122) is provided with a second magnetic attractor. The protrusion (121) of one baffle (1) is inserted into the limiting groove (122) of another baffle (1), and the first magnetic attractor is attracted to the corresponding second magnetic attractor.

5. The foaming mold according to claim 1, characterized in that, The baffle (1) includes a first plate (11) and two second plates (12). The two ends of the first plate (11) along the length direction are integrally connected to one end of the two second plates (12) in a U-shape.

6. The foaming mold according to claim 5, characterized in that, Each of the second plates (12) has a handle (3) on its outer side away from the other second plate (12).

7. The foaming mold according to any one of claims 1-6, characterized in that, The outer surface of the baffle (1) is provided with a Teflon coating.

8. The foaming mold according to any one of claims 1-6, characterized in that, The flexible layer (2) has at least two ribs (21) protruding from its bottom surface away from the baffle (1), each of the ribs (21) extending to both ends of the enclosure (10); at least two of the ribs (21) are spaced apart along the width direction of the flexible layer (2) so that a sealing groove (22) is formed between two adjacent ribs (21).

9. The foaming mold according to any one of claims 1-6, characterized in that, The thickness of the flexible layer (2) is 7mm-10mm.

10. The foaming mold according to any one of claims 1-6, characterized in that, The flexible layer (2) is a silicone layer.

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