Embedded foaming mold for left and right armrests of automobile rear door

By designing a foam mold for embedding the left and right armrests of the car rear door and adopting a positioning technology with a lower mold and an upper mold structure, the problems of low processing efficiency and poor molding quality of existing molds have been solved, and efficient and precise positioning and high-quality foam molding of the armrests have been achieved.

CN224197180UActive Publication Date: 2026-05-05CHONGQING JINFU AUTO PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING JINFU AUTO PARTS CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing foaming molds involve numerous processes, resulting in low processing efficiency and variations in the dimensions of the foamed layers, making it impossible to directly embed the interior component skeleton into the mold for foaming.

Method used

Design a foam mold for embedding left and right armrests of automobile rear doors. It adopts a lower mold and upper mold structure. The lower mold is provided with left and right armrest positioning cavities. Combined with the contour positioning part and the mold closing positioning block, the precise positioning of the armrest and the forming of the foam cavity are realized.

Benefits of technology

This improves processing efficiency and molding quality, ensuring precise positioning and high-quality foam molding of the handrails.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224197180U_ABST
    Figure CN224197180U_ABST
Patent Text Reader

Abstract

The utility model discloses an automobile rear door left and right armrest embedded foaming mould, which is characterized by comprising a lower mould and an upper mould, a left armrest positioning cavity is arranged on the left side of the top surface of the lower mould, a right armrest positioning cavity is arranged on the left side of the top surface of the lower mould, and the left armrest positioning cavity and the right armrest positioning cavity are respectively provided with a profiling positioning part. The upper die is arranged above the lower die in a right opposite manner, the left armrest positioning cavity is provided with a left armrest of an automobile rear door, the right armrest positioning cavity is provided with a right armrest of the automobile rear door, foaming cavities are arranged between the upper die and the left armrest of the automobile rear door and between the upper die and the right armrest of the automobile rear door, and the upper die is provided with a sealing surface matched with the lower die. The mold has the advantages that the mold is simple in structure, the automobile rear door armrest framework is accurately positioned through the profiling positioning part, the foaming cavity is formed by the framework and the upper mold for direct foaming, the forming quality is high, a left armrest and a right armrest are machined at the same time, and the production efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of foam molds, specifically to a foam mold for embedding left and right armrests of a car rear door. Background Technology

[0002] Automotive interior components, such as dashboards, door panels, armrests, headrests, and seat backs / cushions, are key parts for enhancing driving comfort, aesthetics, and safety. Polyurethane (PU) foam molding is the core process for manufacturing the soft, elastic filler layers (such as cushioning and support layers) in these interior components. This process involves injecting a liquid PU mixture into a mold cavity, causing it to foam, expand, and solidify under specific temperature and pressure.

[0003] Existing foaming molds are manufactured according to the shape of automotive interior panels, and then polyurethane foam layers are produced through the molds. Finally, the foam layers are glued onto the automotive interior parts. This method involves many steps and is not very efficient. The installation dimensions of the foam layers are affected by the gluing process. Therefore, it is necessary to design a mold that can directly embed the interior part skeleton into the mold for foaming. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model provides a foaming mold for embedding the left and right armrests of the rear door of a car, which simultaneously achieves the foaming of the left and right armrests of the rear door of a car, with high processing efficiency and good molding quality.

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

[0006] A foaming mold for embedding left and right armrests of a car rear door is characterized by comprising a lower mold and an upper mold, wherein the left side of the top surface of the lower mold has a left armrest positioning cavity and the left side of the top surface of the lower mold has a right armrest positioning cavity, both the left and right armrest positioning cavities have contoured positioning parts, the upper mold is disposed directly above the lower mold, the left armrest positioning cavity is provided with the left armrest of the car rear door, the right armrest positioning cavity is provided with the right armrest of the car rear door, a foaming cavity is provided between the upper mold and the left and right armrests of the car rear door, and the upper mold has a sealing surface that mates with the lower mold.

[0007] Furthermore, the two ends of the front side of the lower mold have first mold closing positioning blocks protruding towards the upper mold, and the middle part of the rear side of the lower mold has a second mold closing positioning groove that is recessed downward.

[0008] Furthermore, the top surface of the upper mold is provided with a heightening seat.

[0009] The beneficial effects of this utility model include: the mold structure is simple, the contour positioning part is used to accurately position the car rear door armrest frame, and then the frame and the upper mold are used to form a foaming cavity for direct foaming, resulting in high molding quality. The left and right armrests are processed at the same time, which improves production efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0012] Figure 3 This is a cross-sectional view of the present invention. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0014] One such Figure 1-3 The illustrated foam mold for embedding the left and right armrests of the rear door of a car includes a lower mold 1 and an upper mold 2. The lower mold 1 has a left armrest positioning cavity 3 on its top left side and a right armrest positioning cavity 4 on its top left side. Both the left and right armrest positioning cavities 3 and 4 have contoured positioning parts 5. The left armrest positioning cavity 3 houses the left rear door armrest 6, and the right armrest positioning cavity 4 houses the right rear door armrest 7. The upper mold 2 is positioned directly above the lower mold 1, and a foaming cavity exists between the upper mold 2 and the left and right rear door armrests 6 and 7. The upper mold 2 has a sealing surface 8 that mates with the lower mold 2. This mold can simultaneously foam the left and right rear door armrests 6 and 7, achieving precise positioning and high molding quality.

[0015] To improve mold closing accuracy, the lower mold 1 has first mold closing positioning blocks 9 protruding upwards from both ends of the front side of the lower mold 1 and the upper mold 2 has a first mold closing positioning groove that cooperates with the first mold closing positioning blocks 9; the lower mold 1 has a second mold closing positioning groove 10 recessed downwards in the middle of the rear side, and the upper mold 2 has a second mold closing positioning block corresponding to the second mold closing positioning groove 10, thereby achieving high mold closing positioning accuracy.

[0016] To prevent interference with the left rear door armrest 6 and the right rear door armrest 7 during mold closing, an extension seat 11 is provided on the top surface of the upper mold 2 in this embodiment.

[0017] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A foaming mold for embedding left and right armrests of a car rear door, characterized in that: The device includes a lower mold (1) and an upper mold (2). The lower mold (1) has a left armrest positioning cavity (3) on the left side of its top surface and a right armrest positioning cavity (4) on the left side of its top surface. Both the left armrest positioning cavity (3) and the right armrest positioning cavity (4) have contour positioning parts (5). The upper mold (2) is positioned directly above the lower mold (1). The left armrest positioning cavity (3) is provided with a left armrest (6) for the rear door of a car, and the right armrest positioning cavity (4) is provided with a right armrest (7) for the rear door of a car. There is a foaming cavity between the upper mold (2) and the left armrest (6) and the right armrest (7) for the rear door of a car. The upper mold (2) has a sealing surface (8) that cooperates with the lower mold (1).

2. The foam mold for embedding left and right armrests of a car rear door according to claim 1, characterized in that: The lower mold (1) has first mold-closing positioning blocks (9) protruding towards the upper mold (2) at both ends of the front side, and a second mold-closing positioning groove (10) recessed downward in the middle of the rear side of the lower mold (1).

3. The foam mold for embedding left and right armrests of a car rear door according to claim 1, characterized in that: The top surface of the upper mold (2) is provided with a heightening seat (11).