Automobile seat cushion forming die

Abstract

An automobile cushion forming die comprises an upper die and a lower die, the upper die and the lower die are connected in a matched mode to form a forming cavity, a supporting structure is arranged in the forming cavity, and the supporting structure comprises at least two layers of supporting nets and a plurality of supporting pieces arranged between the two layers of supporting nets. And the positioning piece is arranged at the end part of the supporting net and is used for being connected with the upper die and / or the lower die. According to the utility model, the supporting strength of the supporting structure is improved in the form that the single-layer supporting net is connected to form the three-dimensional supporting framework, and the supporting framework has elastic deformation capacity in the vertical direction, so that the elastic property of the cushion is further supplemented; and meanwhile, the corners of the supporting framework are in positioning connection with the upper mold and the lower mold, so that the stability of the supporting framework during injection molding is improved, and the quality of the finally formed cushion is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seat cushion production, and particularly relates to an automobile seat cushion forming die. Background Art

[0002] The car seat cushion processing is to use a foaming device to mix the A component isocyanate and the B component polyol, heat them evenly, and then spray them out. Under the limitation of a fixed model, the car seat cushion can be solidified and formed in 1 minute. It is soft and wear-resistant, which prolongs the life of the car seat cushion and conforms to the sitting posture of the passengers.

[0003] The document with authorization announcement number CN219294549U discloses a molding mold for automobile seat cushion sponge, including an upper mold and a lower mold that are matched with each other, and a molding cavity for accommodating sponge is arranged between the upper mold and the lower mold, and a linear support member passing through the molding cavity and an annular support member arranged around the inner wall of the molding cavity are fixedly arranged in the upper mold, and the linear support member and the annular support member are both made of ferromagnetic material: the upper mold is provided with a first magnetic suction member for adsorbing the annular support member and a limiting mechanism for locking the position of the annular support member on the extension trajectory of the annular support member, and the upper mold is provided with a second magnetic suction member for adsorbing the linear support member on the extension trajectory of the linear support member.

[0004] The working principle of the device is as follows: before injecting the raw material into the mold, the first magnetic part is used to magnetically adsorb the annular support part, thereby preliminarily fixing the position of the annular support part, and the first limiting groove further locks the position of the annular support part; the second magnetic part is used to magnetically adsorb the linear support part, and the second limiting groove further locks the position of the linear support part, which can improve the problem of unstable positioning of the inner support part in the mold; then the raw material is injected into the mold, thereby burying the annular support part and the linear support part in the molded sponge, and the annular support part and the linear support part play a supporting role on the sponge.

[0005] However, the device still has the following problems: the temperature of the liquid injected into the mold is often high, even reaching above 160°C. Under such high temperature conditions, the magnetic fixing effect of the magnetic suction part is greatly weakened, so the reinforcement and limiting effect of the support part is very poor. After multiple operations, the magnetic fixing effect will even disappear, and its practicality and economy are poor. Utility Model Content

[0006] In response to the above-mentioned problems, the purpose of the present utility model is to provide a car seat cushion forming mold, which improves the supporting strength of the supporting structure by connecting a single-layer supporting net to form a three-dimensional supporting structure, and the supporting structure has the ability to elastically deform in the vertical direction, further supplementing the elastic performance of the seat cushion; at the same time, the corners of the supporting structure are positioned and connected with the upper and lower molds, which improves the stability of the supporting structure during injection molding and ensures the quality of the final molded seat cushion.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A car seat cushion forming mold includes an upper mold and a lower mold, the upper mold and the lower mold are cooperatively connected to form a forming cavity, a support structure is arranged in the forming cavity, the support structure includes at least two layers of support nets, a plurality of support members arranged between the two layers of the support nets, and positioning members arranged on the ends of the support nets and used to connect with the upper mold and / or the lower mold.

[0009] As a further preferred embodiment of the present invention, the positioning member includes a positioning ring provided on an inner corner of the support net, and a positioning rod provided on the upper mold and / or the lower mold and used to pass through the positioning ring.

[0010] As a further preference of the present invention, the support net includes a frame, a first linear body and a second linear body which are arranged in the frame and cross-connected to form a grid structure.

[0011] As a further preferred embodiment of the present invention, the support member includes two locking plates corresponding to each other above and below, which are arranged at the connection points of the grid structure, and a spring with two ends respectively connected to the two locking plates.

[0012] As a further preferred embodiment of the present invention, the locking disk includes an upper disk body and a lower disk body connected to each other, and two limiting grooves are provided on the upper disk body and the lower disk body for respectively allowing the first linear body and the second linear body to pass through.

[0013] As a further preferred embodiment of the present invention, mounting grooves for mounting the spring are provided on surfaces of the upper disk and the lower disk that are away from each other.

[0014] As a further preferred embodiment of the present invention, a positioning groove is provided on the upper disk body, and a positioning protrusion is provided on the lower disk body to be plugged into the positioning groove.

[0015] As a further preferred embodiment of the present invention, both the first linear body and the second linear body are provided with a flat portion at the cross connection.

[0016] As a further preferred embodiment of the present invention, the upper mold is provided with an injection port connected to the molding cavity.

[0017] As a further preferred embodiment of the present invention, a sealing cover is detachably connected to the injection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attachment Figure 1 It is a structural diagram of the present utility model.

[0019] Attachment Figure 2 This is a schematic diagram of the local structure of the positioning member of the utility model Figure 1 .

[0020] Attachment Figure 3 This is a schematic diagram of the local structure of the positioning member of the utility model Figure 2 .

[0021] Attachment Figure 4 This is a schematic diagram of the structure of the locking disk of the utility model from a top view.

[0022] Attachment Figure 5 This is a schematic structural diagram of the locking disk of the utility model when viewed from the side.

[0023] Description of the drawings: upper mold 11, lower mold 12, molding cavity 13, support net 2, support member 3, positioning member 4, injection port 5, sealing cover 6;

[0024] Frame 21, first linear body 22, second linear body 23, flat portion 24;

[0025] Locking plate 31, spring 32;

[0026] Upper plate 311, lower plate 312, limiting groove 313, mounting groove 314, positioning groove 315, positioning protrusion 316;

[0027] Positioning ring 41 and positioning rod 42. DETAILED DESCRIPTION

[0028] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0029] In addition, the terms "first", "second", etc. are only used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0030] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0031] This embodiment provides a car seat cushion forming mold, including an upper mold 11 and a lower mold 12, the upper mold 11 and the lower mold 12 are connected to form a forming cavity 13, a support structure is arranged in the forming cavity 13, and the support structure includes at least two layers of support nets 2, a plurality of support members 3 arranged between the two layers of the support nets 2, and a positioning member 4 arranged on the end of the support net 2 and used to connect with the upper mold 11 and / or the lower mold 12.

[0032] The support mesh 2 is constructed from connected metal wires, such as iron or steel wire. The support meshes 2 form a single-layer support structure, interconnected to form a three-dimensional framework. This framework is ultimately embedded within the molded sponge, enhancing support without sacrificing the cushion's comfort. The number of support meshes 2 is selected based on the cushion's thickness and support strength.

[0033] In this embodiment, the positioning member 4 includes a positioning ring 41 disposed on the inner corner of the support mesh 2, and a positioning rod 42 disposed on the upper mold 11 and / or lower mold 12 and used to pass through the positioning ring 41. The positioning ring 41 can be made of the same material as the support mesh 2, but the diameter of the metal wire used in the positioning ring 41 can be 1 / 3 to 1 / 2 of the diameter of the support mesh 2, thereby forming a smaller positioning aperture that cooperates with the positioning rod 42 for positioning, which not only helps connect the support mesh 2 but also ensures the positioning of the support mesh 2. The positioning rods 42 are four positioning pins disposed on the corners of the upper mold 11 and / or lower mold 12. After the positioning pins are removed, only pinholes similar in size to the holes in the molded sponge remain, which does not affect the quality of the molding.

[0034] In this embodiment, the support net 2 includes a frame 21, and first and second linear bodies 22, 23 disposed within the frame 21 and cross-connected to form a grid structure. The first and second linear bodies 22, 23 can be connected to the frame 21 by welding or integral molding. The first and second linear bodies 22, 23 respectively constitute the warp and weft of the support net 2, and the intersection angle formed by the first and second linear bodies is preferably 90 degrees.

[0035] In this embodiment, the support member 3 includes two locking disks 31 arranged at the connection point of the grid structure, corresponding to each other above and below, and springs 32 connected to the two locking disks 31 at both ends. Among them, a single locking disk 31 is arranged at the intersection of the first linear body 22 and the second linear body 23 of the single-layer support net 2 to complete the locking of the intersection, and this connection method is more flexible, ensuring that the support net 2 has a certain deformation ability inside, thereby improving the support effect of the support net 2. It is worth noting that the locking disk 31 can be arranged at some intersections according to the requirements of support strength. For example, a locking disk with a higher density is set in the middle position of the support net 2, that is, the main supporting part, to improve the support effect of the middle part, while a locking disk with a lower density can be set at the edge part, which reduces the difficulty of assembly and improves practicality.

[0036] In this embodiment, the locking plate 31 includes an upper plate 311 and a lower plate 312 connected to each other. Each of the upper plate 311 and the lower plate 312 is provided with two retaining grooves 313 for respectively passing the first linear body 22 and the second linear body 23. Mounting grooves 314 for mounting the spring 32 are provided on the surfaces of the upper plate 311 and the lower plate 312 facing away from each other. A positioning groove 315 is provided on the upper plate 311, and a positioning protrusion 316 is provided on the lower plate 312 to engage with the positioning groove 315. To complement each other, the first linear body 22 and the second linear body 23 are each provided with a flat portion 24 at their intersection to reduce the volume occupied at the intersection of the two linear bodies, minimize the gap between the upper and lower plates, and improve the tightness of the connection.

[0037] After the upper and lower plates are connected to form the locking plate, the intersection of the linear bodies is locked, ultimately forming a single-layer support mesh 2 structure. After the single-layer support mesh 2 structure is connected, the springs 32 are used to connect two adjacent layers of support mesh 2, thus forming a three-dimensional support structure. The springs 32 not only complete the connection, but also enhance the elastic performance of the support structure, improving the quality of the final cushion.

[0038] In this embodiment, the upper mold 11 is provided with an injection port 5 communicating with the molding cavity 13. A sealing cap 6 is detachably connected to the injection port 5. This arrangement allows injection after the upper and lower molds 11 and 12 are connected to form a complete and sealed molding cavity, shielding against external interference and improving molding quality. Furthermore, after the connection is complete, the cooperation between the positioning ring 41 and the positioning rod 42 not only secures the support structure formed by the support mesh 2, but also enhances the injection molding effect.

[0039] The molding mold provided in this embodiment improves the supporting strength of the supporting structure by connecting a single-layer supporting net to form a three-dimensional supporting structure, and the supporting structure has the ability to elastically deform in the vertical direction, which further supplements the elastic performance of the seat cushion; at the same time, the corners of the supporting structure are positioned and connected with the upper and lower molds, which improves the stability of the supporting structure during injection molding and ensures the quality of the final molded seat cushion.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A car seat cushion forming mold, comprising an upper mold (11) and a lower mold (12), wherein the upper mold (11) and the lower mold (12) are connected to form a forming cavity (13), and a supporting structure is provided in the forming cavity (13), characterized in that: The support structure comprises at least two layers of support nets (2), a plurality of support members (3) arranged between the two layers of the support nets (2), and positioning members (4) arranged on the ends of the support nets (2) and used for connecting to the upper mold (11) and / or the lower mold (12).

2. The automobile seat cushion forming mold according to claim 1, characterized in that: The positioning member (4) comprises a positioning ring (41) arranged on the inner corner of the support net (2), and a positioning rod (42) arranged on the upper mold (11) and / or the lower mold (12) and used to pass through the positioning ring (41).

3. The automobile seat cushion forming mold according to claim 1, characterized in that: The support net (2) comprises a frame (21), a first linear body (22) and a second linear body (23) which are arranged in the frame (21) and cross-connected to form a grid structure.

4. The automobile seat cushion forming mold according to claim 3, characterized in that: The support member (3) comprises two locking disks (31) arranged at the connection points of the grid structure and corresponding to each other, and springs (32) with two ends respectively connected to the two locking disks (31).

5. The automobile seat cushion forming mold according to claim 4, characterized in that: The locking disk (31) comprises an upper disk body (311) and a lower disk body (312) connected to each other, and the upper disk body (311) and the lower disk body (312) are both provided with two limiting grooves (313) for respectively allowing the first linear body (22) and the second linear body (23) to pass through.

6. The automobile seat cushion forming mold according to claim 5, characterized in that: Mounting grooves (314) for mounting the spring (32) are provided on surfaces of the upper disc (311) and the lower disc (312) that are away from each other.

7. The automobile seat cushion forming mold according to claim 5, characterized in that: The upper disk body (311) is provided with a positioning groove (315), and the lower disk body (312) is provided with a positioning protrusion (316) plugged into the positioning groove (315).

8. The automobile seat cushion forming mold according to claim 3, characterized in that: The first linear body (22) and the second linear body (23) are both provided with a flat portion (24) at the cross-connection.

9. The automobile seat cushion forming mold according to claim 2, characterized in that: The upper mold (11) is provided with an injection port (5) communicating with the molding cavity (13).

10. The automobile seat cushion forming mold according to claim 9, characterized in that: A sealing cover (6) is detachably connected to the injection port (5).

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