Automobile seat ventilation bag mold

Abstract

The utility model belongs to the field of automobile accessory production and manufacturing equipment, concretely is automobile seat ventilation bag mould, include: first mould and second mould, first mould lower surface has the first placement slot for forming an elastic part, second mould upper surface has the second placement slot corresponding to first placement slot, when first mould with second mould close, ventilation bag is located between first placement slot and second placement slot, and first placement slot and second placement slot are connected and constitute mould cavity, form the elastic part through foaming technology, and realize integral moulding fixation of elastic part and ventilation bag.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing equipment, and in particular to a mold for automotive seat ventilation bags. Background Technology

[0002] Car seat ventilation, a design feature designed to enhance comfort, works by incorporating fans inside the seat cushion and backrest. These fans draw air into ventilation bags, which then permeate upwards through foamed vents, eventually reaching the seat cover surface. In hot weather, this feature improves airflow in the area where the body contacts the seat, quickly wicking away sweat from the passenger's buttocks and back, providing a comfortable riding experience.

[0003] Seat ventilation functions improve airflow in hot weather by incorporating fans, air ducts, and foam ventilation holes within the seat cushion and backrest. This draws air in and exhausts it through the surface of the seat cover, enhancing comfort by quickly removing sweat. Seat ventilation structures typically include components such as the seat cover, foam, air ducts, and fans. The seal between the air duct and the foam, as well as the alignment accuracy of the ventilation holes, are crucial for airflow transmission. In traditional manual assembly, the air duct and foam are attached by applying adhesive and manually aligning triangular positioning marks. However, due to the fast production cycle and complex multi-point alignment process, misalignment of the ventilation holes is common, hindering airflow and reducing ventilation performance. Such defects are difficult to identify through electrical or visual inspection and are prone to entering the market, causing quality problems. Summary of the Invention

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a mold for a car seat ventilation bag.

[0005] This application provides a mold for a car seat ventilation bag, including: a first mold and a second mold; The lower surface of the first mold has a first placement groove for forming an elastic element; The upper surface of the second mold has a second placement groove corresponding to the first placement groove; When the first mold and the second mold are closed, the ventilation bag is located between the first placement groove and the second placement groove, and the first placement groove and the second placement groove are connected to form a mold cavity. The elastic element is formed by foaming process, and the elastic element and the ventilation bag are integrally formed and fixed.

[0006] In this technical solution, the car seat ventilation bag mold achieves integrated injection molding of the ventilation bag and the elastic component through the cooperation of the upper second mold. During molding, the ventilation bag is pre-placed in the second placement groove of the second mold, the first mold is pressed down and closed with the second mold. After the upper second mold is closed, the first placement groove and the second placement groove are connected to each other to form a cavity for preparing the elastic component.

[0007] In one embodiment, the ventilation bag has multiple ventilation holes on the side facing the first mold; The bottom of the first placement slot is provided with a downwardly extending closed column at the corresponding position of each of the ventilation holes; When the first mold and the second mold are closed, each sealing column blocks the corresponding ventilation hole.

[0008] In this technical solution, when the first mold and the second mold are closed, the bottom surface of the closed column covers the ventilation hole, physically blocking it and preventing the foaming material from flowing into the ventilation hole during the injection molding process of the elastic part. This eliminates the possibility of the ventilation hole being blocked by foreign objects during the molding process, ensuring that the ventilation performance of the finished product is not affected, improving the yield and compatibility with subsequent air conditioning and seat ventilation systems.

[0009] In one embodiment, the diameter of the sealing column is 2-5 mm larger than the diameter of its corresponding ventilation hole.

[0010] In this technical solution, the outer dimensions of the sealing column are slightly larger than the ventilation hole to ensure that it can tightly cover the ventilation hole, thereby forming a good seal and effectively preventing the foam material from seeping in; improving the reliability of the protective seal, even under high-pressure injection molding conditions, it can block the leakage of foam material, ensuring the normal function of the ventilation bag, while the design tolerances are easier to control and assemble.

[0011] In one embodiment, the bottom of the sealing column is provided with a limiting part that extends into its corresponding ventilation hole.

[0012] In this technical solution, the limiting part acts as a positioning plug. When the closed column is inserted into the ventilation hole, it can penetrate to a certain depth to ensure accurate longitudinal spatial positioning and prevent the corresponding position from shifting. This achieves consistent height and stable positioning of the closed column and the ventilation hole, improves the accuracy of mold closing, and effectively reduces leakage, material clamping, or deformation caused by misalignment.

[0013] In one embodiment, the height of the limiting portion is 2-5 mm.

[0014] In this technical solution, by setting a reasonable height for the limiting part, it is possible to embed it sufficiently into the ventilation hole without penetrating it, thus ensuring structural stability while also leaving room for molding to avoid affecting the molding quality of the joint surface between the elastic element and the ventilation bag.

[0015] In one embodiment, the car seat ventilation bag mold further includes an elastic guide; The elastic guide is an integrally molded structure, including a limiting part that extends into the ventilation hole and a guiding part that extends out of the ventilation hole. The guiding part gradually extends from the end connected to the limiting part in a direction away from the center line of the ventilation hole.

[0016] In this technical solution, when the first mold and the second mold are closed, the closing column presses down to press the elastic guide tightly onto the upper surface of the ventilation bag, preventing the foam material from flowing into the ventilation hole during the injection molding process of the elastic part; this eliminates the situation where the ventilation hole is blocked by foreign objects during the molding process, ensuring that the ventilation performance of the finished product is not affected, improving the yield and compatibility with subsequent air conditioning and seat ventilation systems.

[0017] In one embodiment, the bottom periphery of the sealing post has a downward and outwardly inclined guide surface to guide the sealing post into the ventilation hole.

[0018] In this technical solution, the bottom periphery of the sealing column has a downward and outward inclined guide surface, which facilitates the sealing column to enter the ventilation hole and achieve the sealing of the ventilation hole.

[0019] In one embodiment, the guide portion is an annular structure, with its bottom surrounding the inner edge of the ventilation hole, and extending inward from the inner edge of the ventilation hole into the interior of the ventilation hole and connected to the limiting portion.

[0020] In this technical solution, a specific structure of the guide is provided to ensure that the elastic element fully supports the boundary area of ​​the ventilation bag, prevents pulling or local loosening, distributes stress more evenly, and improves durability and overall product quality.

[0021] In one embodiment, the resilient guide is made of polyvinyl chloride material.

[0022] In this technical solution, polyvinyl chloride (PVC) material is selected as the elastic guide to provide moderate flexibility, convenient processing, and the advantages of aging resistance and wear resistance.

[0023] In one embodiment, the elastic element is made of foam material.

[0024] In this technical solution, the advantages of foam materials, such as light weight, good elasticity, heat insulation and shock absorption, are utilized to achieve one-time molding of local soft cushions in the seat and provide comfortable support; this enhances riding comfort, effectively insulates heat, improves shock absorption and energy absorption capacity, and reduces the weight of components, which is conducive to weight reduction and energy saving of the whole vehicle.

[0025] The advantages of this utility model over the prior art are as follows: By precisely aligning the first and second placement slots of the mold, the manual alignment of the triangular positioning is replaced, ensuring that the ventilation bag and elastic component automatically align during the molding process, significantly reducing the occurrence of ventilation hole misalignment. The one-piece molding process reduces the complexity of manual operation and the pressure on production cycle time, simplifies the assembly process, improves production efficiency, and ensures product consistency and stability. The mold molding method effectively avoids misalignment defects that are difficult to identify through electrical inspection or visual inspection during manual assembly, significantly reducing the risk of defective parts entering the market and reducing market quality complaints. The mold-based production method is more suitable for standardized and large-scale manufacturing, which helps to improve product quality control and enhance market competitiveness. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 For the purposes of this application, a cross-sectional schematic diagram of a car seat ventilation bag mold is provided.

[0028] Figure 2 To illustrate a first-mode sectional view according to this application.

[0029] Figure 3 For the purposes of this application, a three-dimensional schematic diagram of a ventilation bag is provided.

[0030] Figure 4 This is a schematic diagram illustrating the separation of the closure post and the elastic guide according to this application.

[0031] Figure 5 This is a schematic diagram illustrating an example of a combination of a closed post and an elastic guide, according to this application.

[0032] Figure 6 This is a partial schematic diagram illustrating the cooperation between an example enclosed column and a ventilation bag according to this application.

[0033] In the figure: 1. First mold; 11. First placement groove; 12. Closed column; 121. Guide surface; 2. Second mold; 21. Second placement groove; 3. Ventilation bag; 31. Ventilation hole; 4. Elastic guide; 41. Limiting part; 42. Guide part. Detailed Implementation

[0034] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed herein. This utility model can also be implemented or applied through other different specific embodiments. Various details in this utility model can also be modified or changed according to different viewpoints and application systems without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement it. This utility model can be embodied in many different forms and is not limited to the embodiments described herein.

[0036] In the representation of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this utility model, as well as features of different embodiments or examples.

[0037] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] To clearly illustrate this utility model, components unrelated to the description are omitted, and the same or similar constituent elements throughout the specification are given the same reference numerals.

[0039] Throughout the specification, when it is said that a device is "fixed" to another device, this includes not only "direct fixation" but also "indirect fixation" by placing other components in between. Furthermore, when it is said that a device "includes" a certain component, unless otherwise stated otherwise, this does not exclude other components, but rather implies that other components may be included.

[0040] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0041] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with relevant technical documents and the content of this present instruction, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0042] like Figure 1 As shown, this application provides a mold for a car seat ventilation bag, including: a first mold 1 and a second mold 2; the lower surface of the first mold 1 has a first placement groove 11 for forming an elastic element; the upper surface of the second mold 2 has a second placement groove 21 corresponding to the first placement groove 11, and a ventilation bag 3 is placed in the second placement groove 21; when the first mold 1 and the second mold 2 are closed, the first placement groove 11 and the second placement groove 21 are connected to form a mold cavity, and the elastic element is formed by a foaming process to achieve integral molding and fixing of the elastic element and the ventilation bag 3. The elastic element is made of a foaming material, specifically, the foaming material includes at least one of polyurethane foam, polyethylene foam, thermoplastic elastomer foam, etc. It should be noted that in this application, the ventilation bag 3 is located between the first placement groove 11 and the second placement groove 21, and the ventilation bag 3 can be placed according to actual needs, which is not limited here.

[0043] It is understandable that the automotive seat ventilation bag mold, through the cooperation of the upper second mold 2, achieves integrated injection molding of the ventilation bag 3 and the elastic component. During molding, the ventilation bag 3 is pre-placed in the second placement groove 21 of the second mold 2, the first mold 1 is pressed down and closed with the second mold 2. After the upper second mold 2 is closed, the first placement groove 11 and the second placement groove 21 are interconnected, forming a cavity for preparing the elastic component. In this embodiment, the advantages of foamed materials such as light weight, good elasticity, heat insulation and shock absorption are utilized to achieve one-time molding of the seat cushion and comfortable support function; enhancing riding comfort, effectively insulating heat, improving shock absorption and energy absorption capacity, and reducing the weight of components, which is conducive to weight reduction and energy saving of the whole vehicle.

[0044] Further integration Figure 2 and Figure 3As shown, in a specific embodiment provided in this application, the ventilation bag 3 has multiple ventilation holes 31 on the side facing the first mold 1; the bottom of the first placement groove 11 has a downwardly extending closing post 12 at the corresponding position of each ventilation hole 31; when the first mold 1 and the second mold 2 are closed, each closing post 12 blocks the corresponding ventilation hole 31. In actual use, when the first mold 1 and the second mold 2 are closed, the bottom surface of the closing post 12 covers the ventilation hole 31, physically blocking it, preventing foam material from flowing into the ventilation hole 31 during the elastic part injection molding process; eliminating the situation where the ventilation hole 31 is blocked by foreign objects during the molding process, ensuring that the ventilation performance of the finished product is not affected, improving the yield and compatibility with subsequent air conditioning and seat ventilation systems.

[0045] If the diameter of the sealing post 12 is the same as that of the ventilation hole 31, the sealing post 12 cannot completely block the ventilation hole 31 when the mold is closed. This can easily lead to poor sealing, with foaming material seeping into the ventilation hole 31, causing the ventilation bag 3 to become clogged. Therefore, if... Figure 6 As shown, in this embodiment, the diameter of the closed column 12 is ( The design is larger than the diameter of its corresponding ventilation hole (31). 2-5mm.

[0046] Understandably, in this embodiment, the outer dimensions of the sealing column 12 are slightly larger than the ventilation hole 31, ensuring that it can tightly cover or press against the ventilation hole 31, thereby forming a good sealing effect and effectively preventing the foam material from seeping into the ventilation hole 31. This not only improves the reliability of protection and sealing, but also achieves effective blocking even under high-pressure injection molding conditions, greatly reducing the risk of clogging of the ventilation hole 31. At the same time, this structural design has better adaptability to tolerances, facilitates mold assembly and stable production, and is conducive to the normal functioning of the ventilation bag 3. It should be noted that the ventilation hole 31 on the ventilation bag 3 is blocked by the sealing column 12 during the mold closing process, thereby preventing the foam material from entering the interior of the ventilation hole 31. After the foam material and the ventilation bag 3 are integrally molded, the first mold and the second mold are demolded, and the sealing column 12 forms a ventilation channel in the foam material that is connected to the ventilation hole 31, thereby ensuring the normal ventilation function of the ventilation bag 3.

[0047] In some embodiments provided in this application, the bottom of the closing column 12 is provided with a limiting part 41 that extends into its corresponding ventilation hole 31. Further, the height of the limiting part 41 is 2-5mm. It is understood that the limiting part 41 acts as a positioning plug, allowing the closing column 12 to penetrate to a certain depth when inserted into the ventilation hole 31, ensuring accurate longitudinal spatial positioning and preventing displacement of the corresponding position; achieving consistent height and stable positioning of the closing column 12 and the ventilation hole 31, improving the accuracy of mold closure, and effectively reducing leakage, material clamping, or deformation caused by misalignment. By setting a reasonable height for the limiting part 41, it is sufficiently embedded in the ventilation hole 31 without penetrating it, ensuring structural stability while also leaving molding space to avoid affecting the molding quality of the joint surface between the elastic element and the ventilation bag 3.

[0048] like Figure 4 and Figure 5 As shown in one specific embodiment of this application, the car seat ventilation bag mold further includes an elastic guide 4. The elastic guide 4 is an integrally molded structure, including a limiting part 41 extending into the ventilation hole 31 and a guiding part 42 extending out of the ventilation hole 31. The guiding part 42 gradually extends from the end connected to the limiting part 41 in a direction away from the center line of the ventilation hole 31. In this embodiment, the elastic guide 4 is made of polyvinyl chloride (PVC). The selection of PVC material provides the elastic guide 4 with advantages such as moderate flexibility, easy processing, and resistance to aging and wear.

[0049] Understandably, when the first mold 1 and the second mold 2 are closed, the closing column 12 presses down to press the elastic guide 4 onto the upper surface of the ventilation bag 3, preventing the foam material from flowing into the ventilation hole 31 during the injection molding process of the elastic component; this eliminates the possibility of the ventilation hole 31 being blocked by foreign objects during the molding process, ensuring that the ventilation performance of the finished product is not affected, and improving the yield and compatibility with subsequent air conditioning and seat ventilation systems.

[0050] like Figure 4 As shown, in a specific embodiment provided in this application, the bottom periphery of the sealing post 12 has a downwardly and outwardly inclined guide surface 121 to guide the sealing post 12 into the ventilation hole 31. In this embodiment, the downwardly and outwardly inclined guide surface 121 at the bottom periphery of the sealing post 12 facilitates the sealing post 12 entering the ventilation hole 31 and achieving the sealing of the ventilation hole 31.

[0051] like Figure 5 As shown, in a specific embodiment provided in this application, the guide portion 42 is a ring structure, with its bottom surrounding the inner edge of the ventilation hole 31, and extending inward from the inner edge of the ventilation hole 31 into the interior of the ventilation hole 31 and connected to the limiting portion 41. In this embodiment, a specific structure of the guide portion 42 is provided to ensure that the elastic element fully supports the boundary area of ​​the ventilation bag 3, preventing pulling or local loosening, resulting in more uniform stress distribution, improved durability and overall product quality.

[0052] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A mold for a car seat ventilation bag, characterized in that, include: First model (1) and second model (2); The lower surface of the first mold (1) has a first placement groove (11) for molding an elastic element; The upper surface of the second mold (2) has a second placement groove (21) corresponding to the first placement groove (11); When the first mold (1) and the second mold (2) are closed, the ventilation bag (3) is located between the first placement groove (11) and the second placement groove (21), and the first placement groove (11) and the second placement groove (21) are connected to form a mold cavity. The elastic element is formed by foaming process, and the elastic element and the ventilation bag (3) are integrally formed and fixed.

2. The automotive seat ventilation bag mold as described in claim 1, characterized in that: The ventilation bag (3) has multiple ventilation holes (31) on the side facing the first mold (1); The bottom of the first placement groove (11) is provided with a downwardly extending closed column (12) at the corresponding position of each ventilation hole (31); When the first mold (1) and the second mold (2) are closed, each sealing column (12) blocks the corresponding ventilation hole (31).

3. The automotive seat ventilation bag mold as described in claim 2, characterized in that: The diameter of the sealing column (12) is 2-5 mm larger than the diameter of its corresponding ventilation hole (31).

4. The automotive seat ventilation bag mold as described in claim 2 or 3, characterized in that: The bottom of the closed column (12) is provided with a limiting part (41) that extends into its corresponding ventilation hole (31).

5. The automotive seat ventilation bag mold as described in claim 4, characterized in that: The height of the limiting part (41) is 2-5mm.

6. The automotive seat ventilation bag mold as described in claim 2, characterized in that: It also includes a flexible guide (4); The elastic guide (4) is an integrally formed structure, including a limiting part (41) extending into the ventilation hole (31) and a guide part (42) extending out of the ventilation hole (31). The guide part (42) extends gradually from the end connected to the limiting part (41) in a direction away from the center line of the ventilation hole (31).

7. The automotive seat ventilation bag mold as described in claim 6, characterized in that: The bottom periphery of the sealing column (12) has a downward and outwardly inclined guide surface (121) to guide the sealing column (12) into the ventilation hole (31).

8. The automotive seat ventilation bag mold as described in claim 6, characterized in that: The guide part (42) is a ring structure, with its bottom surrounding the inner edge of the ventilation hole (31), and extending inward from the inner edge of the ventilation hole (31) into the interior of the ventilation hole (31) and connected to the limiting part (41).

9. The automotive seat ventilation bag mold as described in claim 6, characterized in that: The elastic guide (4) is made of polyvinyl chloride material.

10. The automotive seat ventilation bag mold as described in claim 1, characterized in that: The elastic element is made of foam material.

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