A forming die for a vehicle cowl part

CN224809863UActive Publication Date: 2026-09-29SHANGHAI MUMA PLASTIC HARDWARE CO LTD
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Patent Information

Application Number
CN202522494051.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-09-29
Estimated Expiration
2035-11-24

AI Technical Summary

Technical Problem

在现有的汽车堵盖零件成型技术中,常常面临缺乏精准的定位和稳定的滑动配合机制等问题,上下模具在合模过程中容易出现偏差,导致成型的堵盖零件尺寸不准确、形状有误,废品率居高不下,严重影响了生产效率和产品质量,增加了生产成本

Benefits of technology

1、本实用新型通过下模具机构,能实现与上模具机构的精准定位和稳定滑动配合,保证成型精度,还可同时成型多个汽车堵盖零件,提高生产效率。

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Abstract

The utility model belongs to the technical field of forming die, and disclose a kind of automobile plug cover part forming die, including chassis, the upper surface of chassis is fixed with lower die mechanism, the upper surface of lower die mechanism is equipped with upper die mechanism, and the lower die mechanism includes lower die plate, and the upper surface of lower die plate is fixedly connected with the upper surface of chassis, the upper surface of lower die plate is fixedly equipped with multiple plug cover die of symmetrical distribution, the upper surface of plug cover die is fixedly equipped with water gap, the utility model can realize accurate positioning and stable sliding cooperation with upper die mechanism by lower die mechanism, ensure forming accuracy, multiple automobile plug cover parts can also be simultaneously formed, improve production efficiency, and by upper die mechanism, it can effectively disperse and bear forming pressure, ensure that mould stable operation, further ensure the accurate alignment when upper and lower moulds are closed, improve the quality of part forming.
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Description

Technical Field

[0001] This utility model belongs to the field of molding die technology, specifically a molding die for automotive plug parts. Background Technology

[0002] In the factory workshops where automotive parts are manufactured on a large scale, when there is a need for efficient and mass production of automotive plug parts, this automotive plug part molding die can shape the raw materials into plug shapes that meet the design requirements under pressure, satisfying the large demand for plug parts in the automotive production process and ensuring the smooth progress of automotive assembly production.

[0003] However, the following problems were found in the implementation of the relevant technologies: Existing automotive plug part molding technologies often suffer from a lack of precise positioning and stable sliding fit mechanisms. Deviations easily occur between the upper and lower molds during mold closing, leading to inaccurate dimensions and shapes in the molded plug parts, resulting in high scrap rates. This severely impacts production efficiency and product quality, increasing production costs. Furthermore, the molds must withstand significant pressure during molding, but current technologies cannot effectively distribute and bear this pressure. This makes the molds prone to deformation and damage, shortening their lifespan and causing frequent downtime for maintenance, disrupting production plans and reducing overall production efficiency. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a molding die for automotive plug parts, which offers advantages in precise positioning and pressure distribution. Through its lower die mechanism, this invention achieves precise positioning and stable sliding contact with the upper die mechanism, ensuring molding accuracy. It can also simultaneously mold multiple automotive plug parts, improving production efficiency. Furthermore, the upper die mechanism effectively distributes and bears the molding pressure, ensuring stable die operation and further guaranteeing precise alignment when the upper and lower dies are closed, thus improving the quality of the molded parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding die for automotive plug parts, comprising a base frame, a lower mold mechanism fixedly mounted on the upper surface of the base frame, an upper mold mechanism mounted on the upper surface of the lower mold mechanism, the lower mold mechanism comprising a lower template, the lower surface of the lower template being fixedly connected to the upper surface of the base frame, a plurality of symmetrically distributed plug molds fixedly mounted on the upper surface of the lower template, each plug mold having a sprue fixedly mounted on its upper surface, a plurality of positioning holes opened on the lower surface of the lower template, a positioning rod inserted into the inner side of each positioning hole, the positioning rod slidingly engaging with the upper mold mechanism, and a plurality of damping rings sleeved on the outer side of each positioning rod.

[0006] Preferably, the upper mold mechanism includes a pressure plate located above the lower mold plate. The lower surface of the pressure plate is fixedly provided with an upper mold plate that cooperates with the plug mold. The upper surface of the upper mold plate is provided with a fixing groove. A pressure-bearing base is fixedly provided inside the fixing groove. A pressure-bearing rod is inserted into the inner side of the pressure-bearing base. The inner sides of the pressure plate and the upper mold plate are provided with a plurality of limiting sleeves arranged in a rectangular array. The inner side of the limiting sleeves slides against the outer side of the positioning rod.

[0007] Preferably, a plurality of support rods arranged in a rectangular array are inserted on the lower surface of the base frame, and the upper ends of the support rods are in contact with the lower surface of the lower template.

[0008] Preferably, the upper surface of the base frame is provided with a plurality of mounting holes, which are fixedly engaged with the lower surface of the lower template.

[0009] Preferably, two movable handles are fixedly provided on both sides of the lower template.

[0010] Preferably, lifting handles are fixedly provided on both sides of the upper template.

[0011] Preferably, the pressure plate and the upper template have multiple engaging grooves on one end of their opposite surfaces, and the inner side of the engaging grooves engages with the limiting sleeve.

[0012] Preferably, the lower end of the limiting sleeve has a limiting hole, which slides with the positioning rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the lower mold mechanism, can achieve precise positioning and stable sliding cooperation with the upper mold mechanism, ensuring molding accuracy, and can also simultaneously mold multiple automotive plug parts, improving production efficiency.

[0014] 2. This utility model, through the upper mold mechanism, can effectively disperse and bear the molding pressure, ensure the stable operation of the mold, and further ensure the precise alignment when the upper and lower molds are closed, thereby improving the molding quality of the parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after it has been opened; Figure 3 This is a schematic diagram of the lower mold mechanism of this utility model; Figure 4 This is a schematic diagram of the upper mold mechanism of this utility model.

[0016] In the diagram: 1. Base frame; 2. Lower mold mechanism; 3. Upper mold mechanism; 20. Lower template; 21. Sprue; 22. Plug mold; 23. Positioning hole; 24. Damping ring; 25. Positioning rod; 26. Mounting hole; 27. Support rod; 28. Moving handle; 30. Pressure plate; 31. Upper template; 32. Lifting handle; 33. Engaging groove; 34. Limiting sleeve; 35. Limiting hole; 36. Fixing groove; 37. Pressure-bearing base; 38. Pressure-bearing rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 4 As shown, this utility model provides a molding die for automotive plug parts, including a base frame 1. A lower mold mechanism 2 is fixedly mounted on the upper surface of the base frame 1, and an upper mold mechanism 3 is mounted on the upper surface of the lower mold mechanism 2. The lower mold mechanism 2 includes a lower template 20, the lower surface of which is fixedly connected to the upper surface of the base frame 1. A plurality of symmetrically distributed plug molds 22 are fixedly mounted on the upper surface of the lower template 20. A sprue 21 is fixedly mounted on the upper surface of each plug mold 22. A plurality of positioning holes 23 are opened on the lower surface of the lower template 20. A positioning rod 25 is inserted into the inner side of the positioning hole 23. The positioning rod 25 slides with the upper mold mechanism 3. A plurality of damping rings 24 are sleeved on the outer side of the positioning rod 25. The base frame 1 is first placed stably in a suitable working position, and the lower template 20 is firmly fixed to the base frame 1 through the mounting holes 26 on the base frame 1. A plurality of symmetrical plug molds 22 are distributed on the lower template 20, and each plug mold 22 is provided with a sprue 21 for material to flow in during injection molding. Before closing the mold, ensure that the positioning rod 25 inserted in the positioning hole 23 on the lower surface of the lower mold plate 20 is in normal condition. The damping ring 24 on the outside of the positioning rod 25 can play a certain role in buffering and stabilizing, in order to prepare for precise cooperation with the upper mold mechanism 3 in the future.

[0019] Specifically, the upper mold mechanism 3 includes a pressure plate 30, which is located above the lower mold plate 20. An upper mold plate 31, which mates with the capping mold 22, is fixedly mounted on the lower surface of the pressure plate 30. A fixing groove 36 is formed on the upper surface of the upper mold plate 31, and a pressure-bearing base 37 is fixedly mounted inside the fixing groove 36. A pressure-bearing rod 38 is inserted into the inner side of the pressure-bearing base 37. Multiple limiting sleeves 34 arranged in a rectangular array are provided on the inner sides of both the pressure plate 30 and the upper mold plate 31. The inner sides of the limiting sleeves 34 slide against the outer side of the positioning rod 25, placing the pressure plate 30 above the lower mold plate 20 so that the upper mold plate 31, fixedly connected to the lower surface of the pressure plate 30, corresponds to the capping mold 22 on the lower mold plate 20. The pressure-bearing base 37 is installed in the fixing groove 36 on the upper surface of the upper mold plate 31, and a pressure-bearing rod 38 is inserted into the pressure-bearing base 37 to withstand the pressure during mold closing. Multiple limiting sleeves 34 are provided on the inner side of the pressure plate 30 and the upper template 31. The limiting holes 35 at their lower ends will slide and cooperate with the positioning rods 25 on the lower template 20. During the mold closing process, the upper mold mechanism 3 is slowly lowered by lifting handle 32, so that the limiting sleeves 34 slide down along the positioning rods 25 to achieve precise mold closing of the upper and lower molds.

[0020] Furthermore, multiple support rods 27 arranged in a rectangular array are inserted into the lower surface of the base frame 1, with their upper ends abutting against the lower surface of the lower template 20. This design provides additional support for the lower template 20, enhances its stability, effectively disperses pressure when the mold is under high pressure, prevents the lower template 20 from deforming due to uneven stress, thereby ensuring the forming accuracy of the plugging mold 22 and extending the mold's service life.

[0021] Furthermore, multiple mounting holes 26 on the upper surface of the base frame 1 are fixedly fitted to the lower surface of the lower template 20. Fixing via the mounting holes 26 ensures a more secure connection between the lower template 20 and the base frame 1, reducing displacement of the lower template 20 due to vibration or other factors during operation. This ensures the stability of the lower mold mechanism 2 during operation, thereby improving the molding quality of the automotive plug parts.

[0022] It is worth noting that two movable handles 28 are fixedly provided on both sides of the lower template 20. When it is necessary to move the mold, adjust its position, or perform maintenance and repair, the movable handles 28 provide convenient leverage points for operators, enabling them to move the lower template 20 and related molds more easily and safely, improving work efficiency, and reducing the potential damage to the mold caused by direct contact.

[0023] It is worth noting that lifting handles 32 are fixedly installed on both sides of the upper mold plate 31. During mold closing and opening, the lifting handles 32 facilitate the operation of the upper mold mechanism 3 by the operator. The operator can control the raising and lowering of the upper mold mechanism 3 by holding the lifting handles 32, making the operation more precise and labor-saving, improving the convenience and safety of mold operation, and also helping to improve production efficiency.

[0024] It is worth mentioning that multiple engaging grooves 33 are jointly formed on one end of the opposing surfaces of the pressure plate 30 and the upper template 31, and their inner sides engage with the limiting sleeve 34. This engaging connection method ensures that the limiting sleeve 34 is fixed in position between the pressure plate 30 and the upper template 31, preventing the limiting sleeve 34 from shifting during operation. This ensures the precise fit between the limiting sleeve 34 and the positioning rod 25, improves the accuracy of mold closing between the upper and lower molds, and further enhances the molding quality of automotive plug parts.

[0025] It is worth emphasizing that the limiting hole 35 at the lower end of the limiting sleeve 34 slides in conjunction with the positioning rod 25. The design of the limiting hole 35 can precisely guide the sliding direction of the positioning rod 25, so that the upper mold mechanism 3 can close the mold with the lower mold mechanism 2 along the accurate path during the descent process. This effectively avoids offset and misalignment during the mold closing process, greatly improves the accuracy of mold closing, and ensures the dimensional accuracy and shape consistency of the automotive plug parts.

[0026] Working principle: First, place the base frame 1 stably in a suitable working position, and then firmly fix the lower template 20 to the base frame 1 through the mounting holes 26. Multiple symmetrical cap molds 22 are distributed on the lower template 20, each with a sprue 21, which needs to be trimmed after the cap is formed. Before closing the mold, ensure that the positioning rods 25 inserted into the positioning holes 23 on the lower surface of the lower template 20 are in normal condition. The damping rings 24 on the outside of the positioning rods 25 provide a certain degree of buffering and stabilization, preparing for precise cooperation with the upper mold mechanism 3.

[0027] The pressure plate 30 is placed above the lower template 20, so that the upper template 31, which is fixedly connected to the lower surface of the pressure plate 30, corresponds to the plug mold 22 on the lower template 20. A pressure-bearing base 37 is installed in the fixing groove 36 on the upper surface of the upper template 31, and a pressure-bearing rod 38 is inserted into the pressure-bearing base 37 to withstand the pressure during mold closing. Multiple limiting sleeves 34 are provided on the inner side of the pressure plate 30 and the upper template 31. The limiting holes 35 at their lower ends will slide and engage with the positioning rod 25 on the lower template 20. During the mold closing process, the upper mold mechanism 3 is slowly lowered by lifting handle 32, so that the limiting sleeves 34 slide down along the positioning rod 25 to achieve precise mold closing of the upper and lower molds.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for automotive plug parts, comprising a base frame (1), characterized in that: The upper surface of the base frame (1) is fixedly provided with a lower mold mechanism (2), and the upper surface of the lower mold mechanism (2) is provided with an upper mold mechanism (3). The lower mold mechanism (2) includes a lower template (20). The lower surface of the lower template (20) is fixedly connected to the upper surface of the base frame (1). Multiple symmetrically distributed plug molds (22) are fixedly provided on the upper surface of the lower template (20). A sprue (21) is fixedly provided on the upper surface of each plug mold (22). Multiple positioning holes (23) are opened on the lower surface of the lower template (20). A positioning rod (25) is inserted into the inner side of the positioning hole (23). The positioning rod (25) slides with the upper mold mechanism (3). Multiple damping rings (24) are sleeved on the outer side of the positioning rod (25).

2. The molding die for an automotive plug part according to claim 1, characterized in that: The upper mold mechanism (3) includes a pressure plate (30), which is located above the lower template (20). The lower surface of the pressure plate (30) is fixedly provided with an upper template (31) that cooperates with the plug mold (22). The upper surface of the upper template (31) is provided with a fixing groove (36). The inner side of the fixing groove (36) is fixedly provided with a pressure-bearing base (37). The inner side of the pressure-bearing base (37) is provided with a pressure-bearing rod (38). The inner sides of the pressure plate (30) and the upper template (31) are provided with a plurality of limiting sleeves (34) arranged in a rectangular array. The inner side of the limiting sleeve (34) slides against the outer side of the positioning rod (25).

3. The automotive plug part forming mold according to claim 1, characterized in that: The lower surface of the base frame (1) is provided with a plurality of support rods (27) arranged in a rectangular array, and the upper end of the support rods (27) is in contact with the lower surface of the lower template (20).

4. The molding die for an automotive plug part according to claim 1, characterized in that: The upper surface of the base frame (1) is provided with a plurality of mounting holes (26), which are fixedly engaged with the lower surface of the lower template (20).

5. The molding die for an automotive plug part according to claim 1, characterized in that: Two movable handles (28) are fixedly provided on both sides of the lower template (20).

6. The molding die for an automotive plug part according to claim 2, characterized in that: Lifting handles (32) are fixedly provided on both sides of the upper template (31).

7. The molding die for an automotive plug part according to claim 2, characterized in that: The pressure plate (30) and the upper template (31) have multiple engaging grooves (33) on one end of their opposite sides, and the inner side of the engaging grooves (33) engages with the limiting sleeve (34).

8. The molding die for an automotive plug part according to claim 2, characterized in that: The lower end of the limiting sleeve (34) is provided with a limiting hole (35), and the limiting hole (35) slides with the positioning rod (25).