Foaming mold frame structure for automotive upholstery

By designing a simplified upper and lower frame structure, combined with hooks, cylinders, and air bags, the problem of complex and bulky existing mold frame structures has been solved, achieving lightweighting and rapid mold opening and closing, and improving the molding efficiency of foamed parts.

CN224197174UActive Publication Date: 2026-05-05CHONGQING JINFU AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING JINFU AUTO PARTS CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing foam mold frames for automotive interior parts are complex, bulky, and inconvenient to clamp, making it difficult to achieve rapid mold opening and closing.

Method used

Design a mold frame structure including an upper frame and a lower frame. The upper frame is a rectangular frame structure with weight-reducing longitudinal beams. The lower frame has columns and a load-bearing base plate. The mold can be quickly clamped and opened and closed by hooks, cylinders and limit rods, and the mold closing force is provided by an inflatable bag.

Benefits of technology

It achieves a simple mold frame structure with high strength and light weight, convenient clamping, and can quickly open and close the mold, thereby improving the molding efficiency of foamed automotive interior parts.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224197174U_ABST
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Abstract

The utility model discloses an automotive upholstery foaming mould frame structure which is characterized by comprising a lower frame and an upper frame, the upper frame is of a rectangular frame structure, longitudinal beams of the upper frame are weight reduction beams, the weight reduction beams are provided with a plurality of through rectangular weight reduction cavities, the lower frame comprises stand columns at four corners and a bearing bottom plate arranged in the middles of the four stand columns, and the bearing bottom plate is provided with a plurality of through rectangular weight reduction cavities. A plurality of through rectangular weight reduction cavities are formed in stand columns of the lower frame, a weight reduction groove is formed in a bottom plate of the bearing bottom plate, one end of the upper frame is hinged to one end of the lower frame, a hook is hinged to the other end of the upper frame, the lower frame is provided with a hook pin matched with the hook, a mold containing cavity is formed between the upper frame and the lower frame, and a mold opening air cylinder is arranged between the upper frame and the lower frame. A mold fixing plate is arranged on the lower frame, and an inflatable bag for supporting the mold fixing plate is arranged on the lower frame. The mold frame has the advantages that the mold frame is simple in structure and convenient to clamp, the foaming mold of the automobile interior trim part can be rapidly opened and closed, and rapid forming of the foaming mold of the automobile interior trim part can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of foam molds, specifically to a foam mold frame structure for automotive interior parts. Background Technology

[0002] Sponge foam production involves injecting sponge foaming material into the mold cavity of a sponge foaming mold, then closing the mold and heating the foaming material to produce the sponge product. When the sponge product is large, the mold becomes even more heavy, requiring a sponge foaming mold frame to install and operate the upper and lower molds for opening and closing operations. Existing mold frame structures are complex and cumbersome, making clamping and closing operations inconvenient. Furthermore, to ensure sufficient strength and rigidity to withstand foaming pressure and frequent mold opening and closing impacts, existing mold frames are often designed to be very bulky. Therefore, it is necessary to design a mold frame with a simple structure. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this utility model provides a foaming mold frame structure for automotive interior parts, which is simple in structure, strong, high-quality, lightweight, and easy to clamp.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A foaming mold frame structure for automotive interior parts, characterized in that: it includes a lower frame and an upper frame, the upper frame having a rectangular frame structure, the longitudinal beams of the upper frame being weight-reducing beams, the weight-reducing beams having multiple through rectangular weight-reducing cavities, the lower frame including four corner columns and a supporting base plate disposed in the middle of the four columns, the columns of the lower frame having multiple through rectangular weight-reducing cavities, the supporting base plate having weight-reducing grooves, one end of the upper frame being hinged to one end of the lower frame, the other end of the upper frame being hinged to a hook, the lower frame having a hook pin cooperating with the hook, a mold receiving cavity between the upper and lower frames, a mold opening cylinder between the upper and lower frames, a limiting rod on the upper frame, a limiting platform corresponding to the limiting rod on the lower frame, a shock-absorbing pad at the lower end of the limiting rod, a mold fixing plate above the supporting base plate, the top surface of the supporting base plate having an air bag receiving cavity for accommodating an inflatable bag, the inflatable bag abutting against the bottom surface of the mold fixing plate.

[0006] Furthermore, the upper frame is provided with a hook cylinder for driving the hook to flip, the upper frame has a cylinder support, a central swing arm is hinged on the cylinder support, the hook cylinder is disposed on the central swing arm, and the front end of the piston rod of the hook cylinder is hinged to the support arm on the hook.

[0007] Furthermore, the upper frame has a limiting rod, the lower frame has a limiting platform corresponding to the limiting rod, and the lower end of the limiting rod is provided with a shock-absorbing pad.

[0008] Furthermore, the lower frame has an inflatable bag receiving cavity, the inflatable bag is placed in the inflatable bag receiving cavity, and the bottom of the inflatable bag receiving cavity has an inflatable bag air tube connection hole.

[0009] The beneficial effects of this utility model include: the mold frame has a simple structure, high structural strength and light weight, and is easy to clamp, which can realize the rapid opening and closing of the mold for foaming automotive interior parts, and is conducive to improving the rapid molding of foamed automotive interior parts. Attached Figure Description

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

[0011] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0013] One such Figure 1-2 The shown automotive interior parts foam mold frame structure includes a lower frame 1 and an upper frame 2. The upper frame 2 has a rectangular frame structure, and the longitudinal beam of the upper frame 2 is a weight-reducing beam with multiple through rectangular weight-reducing cavities 33. The lower frame 1 includes four corner columns and a supporting base plate 12 set in the middle of the four columns. The columns of the lower frame 1 have multiple through rectangular weight-reducing cavities 33, and the base plate 12 has a weight-reducing groove 13. This structure makes the mold frame structure strong and lightweight. One end of the upper frame 2 is hinged to one end of the lower frame 1, and the other end of the upper frame 2 is hinged to a hook 3. The lower frame 1 is provided with a hook pin 4 that cooperates with the hook 3. There is a mold receiving cavity between the upper frame 2 and the lower frame 1. A mold opening cylinder 7 is provided between the upper frame 2 and the lower frame 1. A mold fixing plate 5 is provided above the supporting base plate 12.

[0014] The upper frame 2 is provided with a hook cylinder 8 that drives the hook 3 to flip. The upper frame 2 has a cylinder support 21, and a central swing arm 22 is hinged on the cylinder support 21. The hook cylinder 8 is set on the central swing arm 22. The front end of the piston rod of the hook cylinder 8 is hinged to the support arm on the hook 3. This structure is used to lock the upper frame 2 and the lower frame 1 together by the hook 3.

[0015] To avoid a huge impact when the upper and lower molds are closed, the upper frame 2 of this embodiment has a limiting rod 22, and the lower frame 1 has a limiting platform 11 corresponding to the limiting rod 22. The lower end of the limiting rod 22 is provided with a shock-absorbing pad 24.

[0016] To increase the clamping force, in this embodiment, the top surface of the supporting base plate 12 has an air bag receiving cavity for accommodating the air bag 6. The air bag 6 abuts against the bottom surface of the mold fixing plate 5. The bottom of the air bag receiving cavity has an air pipe connection hole 12 for the air bag 6. By inflating the air bag 6, the lower mold can be lifted upward.

[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 frame structure for automotive interior parts, characterized in that: The system includes a lower frame (1) and an upper frame (2). The upper frame (2) has a rectangular frame structure. The longitudinal beams of the upper frame (2) are weight-reducing beams, and the weight-reducing beams have multiple through rectangular weight-reducing cavities (33). The lower frame (1) includes four corner columns and a supporting base plate (12) located in the middle of the four columns. The columns of the lower frame (1) have multiple through rectangular weight-reducing cavities (33). The base plate (12) has a weight-reducing groove (13). One end of the upper frame (2) is hinged to one end of the lower frame (1). The other end of the upper frame (2) is hinged to a hook (3). The lower frame (1) is provided with hooks. (3) A matching hook pin (4) is provided between the upper frame (2) and the lower frame (1), a mold receiving cavity is provided between the upper frame (2) and the lower frame (1), an opening cylinder (7) is provided between the upper frame (2) and the lower frame (1), a limiting rod (23) is provided on the upper frame (2), a limiting platform (11) corresponding to the limiting rod (23) is provided on the lower frame (1), a shock-absorbing pad (24) is provided at the lower end of the limiting rod (23), a mold fixing plate (5) is provided above the bearing base plate (12), and the top surface of the bearing base plate (12) has an air bag receiving cavity for accommodating an inflatable bag (6), and the inflatable bag (6) abuts against the bottom surface of the mold fixing plate (5).

2. The foaming mold frame structure for automotive interior parts according to claim 1, characterized in that: The upper frame (2) is provided with a hook cylinder (8) for driving the hook (3) to flip. The upper frame (2) has a cylinder support (21). A middle swing (22) is hinged on the cylinder support (21). The hook cylinder (8) is located on the middle swing (22). The front end of the piston rod of the hook cylinder (8) is hinged to the support arm on the hook (3).

3. The foaming mold frame structure for automotive interior parts according to claim 1, characterized in that: The lower frame (1) has an air bag receiving cavity, the air bag (6) is placed in the air bag receiving cavity, and the bottom of the air bag receiving cavity has an air tube connection hole for the air bag (6).