Processing die for automobile rearview mirror production

By combining the positioning block and positioning groove, the design of the inclined guide post and slider, and the use of the gating runner and sprue bushing, the problems of low molding accuracy and insufficient stability of traditional molds are solved, and high-precision molding and efficient production are achieved.

CN224527856UActive Publication Date: 2026-07-21SUZHOU RELPHI PRECISE TOOLING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU RELPHI PRECISE TOOLING CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional automotive rearview mirror molds suffer from problems such as poor molding accuracy, easy tearing during demolding, insufficient mold stability, and low production efficiency.

Method used

The design employs a combination of positioning blocks and positioning grooves, along with a symmetrical lateral parting design of inclined guide pillars and sliders. Combined with the synergistic use of the gating runner and sprue bushing, it ensures uniform filling of molten material and achieves smooth demolding through the stable support structure of the mold base and mold feet.

Benefits of technology

It improves the side feature accuracy and optical performance of the molded rearview mirror, reduces the defect rate, extends the mold life, and enhances production continuity and product qualification rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of processing mould for automobile rearview mirror production, it is related to processing mould technical field, the processing mould for automobile rearview mirror production includes mould seat base, the upper end of this mould seat base is connected with female die core component;The utility model, when using, through the cooperation of positioning block and positioning groove, and the symmetrical side parting design of inclined guide pillar, slider, effectively avoid product demolding deformation, strain, guarantee the side feature and appearance precision of forming automobile rearview mirror, improve product pass rate;Gate and sprue bush cooperate, so that molten raw material is stable, evenly fills public die core and female die core, reduces material defect, bubble and other defects, guarantees the optical performance and structural strength of forming automobile rearview mirror, satisfies automobile parts use requirement.
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Description

Technical Field

[0001] This utility model specifically relates to the field of processing mold technology, and more specifically to a processing mold for the production of automotive rearview mirrors. Background Technology

[0002] In the automotive parts manufacturing sector, rearview mirrors are crucial components for ensuring driving safety, and their structural precision and appearance quality directly impact performance and overall vehicle quality. With the automotive industry's growing demand for lightweight, high-performance plastic parts, injection molding has become the mainstream process for rearview mirror production, making the development of suitable precision machining molds essential.

[0003] Traditional automotive rearview mirror molds have several shortcomings: Firstly, the mold parting and demolding mechanisms are poorly designed, which can lead to poor molding accuracy of the side features of the molded parts, high risk of product tearing and deformation during demolding, and increased scrap rate. Secondly, the poor coordination between the gating system and the mold base structure results in uneven filling of molten raw materials, which can easily cause defects such as material shortage and air bubbles, affecting the optical performance and appearance of the rearview mirror. In addition, the positioning and connection accuracy of the various components of the mold is low, the stability of the mold opening and closing process is insufficient, and long-term use can easily lead to wear and misalignment, reducing mold life and production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a processing mold for the production of automotive rearview mirrors. By installing the female mold core assembly and the mold base, the processing mold has the characteristics of high forming accuracy, uniform material filling, strong mold stability and high production efficiency, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A processing mold for manufacturing automotive rearview mirrors, comprising:

[0007] Mold base, the upper end of which is connected to the female mold core assembly;

[0008] The mold base includes a lower template with a mold opening groove in the middle and mold feet fixedly installed symmetrically on the upper surface of the lower template. A push rod fixing plate is fixedly connected to the upper surface of the lower template, and push rods are fixedly installed symmetrically on the upper surface of the push rod fixing plate. The upper ends of the push rods pass through the push rod pad, the moving template, and the pouring channel, and the top of the upper end of the push rod is connected to the molded car rearview mirror that is symmetrically arranged front and back.

[0009] As a further technical solution of this utility model, the lower end of the push rod pad is connected to the push rod fixing plate, and both the push rod fixing plate and the push rod pad are disposed between the mold feet that are symmetrically arranged.

[0010] As a further technical solution of this utility model, the inner sides of the top rod fixing plate and the top rod pad are both fixedly connected to the lower ends of the inclined guide columns arranged symmetrically in front and behind; the upper ends of the symmetrically arranged mold feet are fixedly connected to the moving template.

[0011] As a further technical solution of this utility model, the upper ends of the inclined guide pillars arranged symmetrically front and back all penetrate the moving template and are connected to the inner side of the male mold core. The male mold core is located on the inner side of the upper end of the moving template, and the upper surface of the moving template is also symmetrically provided with positioning blocks.

[0012] As a further technical solution of this utility model, a casting channel is installed in the middle of the male mold core, and the upper surface of the male mold core is connected to the molded car rearview mirror which is symmetrically arranged front and back; one side of the symmetrically arranged oblique guide pillars is connected to the molded car rearview mirror, and the other side is connected to the slider. The slider is symmetrically arranged at both ends of the moving template and is slidably connected to the moving template.

[0013] As a further technical solution of this utility model, the upper end of the moving template is connected to the positioning groove provided on the lower surface of the female mold base through symmetrically arranged positioning blocks, and a female mold core is installed on the inner side of the lower end of the female mold base, and the lower end of the female mold core is connected to the male mold core.

[0014] As a further technical solution of this utility model, an upper template is fixedly installed on the upper surface, and a sprue sleeve is provided in the middle of the upper template.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In use, this utility model, through the cooperation of positioning blocks and positioning grooves, and the symmetrical lateral parting design of inclined guide pillars and sliders, effectively avoids product demolding deformation and tearing, ensures the side features and appearance accuracy of the molded car rearview mirror, and improves the product qualification rate.

[0017] This invention utilizes a gating runner and a gate sleeve to ensure stable and uniform filling of the male and female mold cores with molten material, reducing defects such as material shortage and air bubbles, and guaranteeing the optical performance and structural strength of the molded automotive rearview mirror to meet the requirements of automotive parts.

[0018] This utility model provides stable support for the mold by using the lower template, mold feet, and connection structure of the mold base. The mold opening top groove cooperates with the ejection mechanism to ensure smooth demolding, reduce mold wear, extend mold service life, and improve production continuity. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This utility model Figure 1 Top view.

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the split structure.

[0022] Figure 4 This utility model Figure 3 A schematic diagram of the split structure.

[0023] Figure 5 This utility model Figure 4 A schematic diagram of the split structure.

[0024] Figure 6 This utility model Figure 5 A schematic diagram of the split structure.

[0025] Figure 7 This utility model Figure 6 A schematic diagram of the split structure.

[0026] Figure 8 This utility model Figure 7 The left view.

[0027] Figure 9 This utility model Figure 4 A magnified view of a portion of the image.

[0028] In the diagram: 1-Mold base, 2-Mold core assembly;

[0029] 11-Lower mold plate, 12-Mold foot, 13-Ejector pin fixing plate, 14-Ejector pin pad, 15-Ejector pin, 16-Angled guide post, 17-Moving mold plate, 18-Gating channel, 19-Slider, 110-Positioning block, 111-Molded car rearview mirror, 112-Mold opening top groove, 113-Male mold core;

[0030] 21-Mother mold base, 22-Mother mold core, 23-Upper mold plate, 24-Gating sleeve. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-9 In this embodiment of the present invention, a processing mold for producing automobile rearview mirrors includes a mold base 1, the upper end of which is connected to a female mold core assembly 2.

[0033] The mold base 1 includes a lower template 11, with a mold opening groove 112 in the middle of the lower template 11, and mold feet 12 are fixedly installed on the upper surface of the lower template 11 in a symmetrical manner. A push rod fixing plate 13 is fixedly connected to the upper surface of the lower template 11, and push rods 15 are fixedly installed on the upper surface of the push rod fixing plate 13 in a symmetrical manner. The upper ends of the push rods 15 pass through the push rod pad 14, the moving template 17, and the pouring channel 18, respectively, and the top of the upper end of the push rods 15 is connected to the molded car rearview mirror 111 arranged in a symmetrical manner.

[0034] By adopting the above technical solution, the lower template 11, mold feet 12 and the connection structure of each component of the mold base 1 provide stable support for the mold; the mold opening top groove 112 cooperates with the ejection mechanism to ensure smooth demolding, reduce mold wear, extend mold service life and improve production continuity.

[0035] In this embodiment, the lower end of the ejector pin pad 14 is connected to the ejector pin fixing plate 13, and the ejector pin fixing plate 13 and the ejector pin pad 14 are both located between the mold feet 12 which are symmetrically arranged.

[0036] The inner sides of the top rod fixing plate 13 and the top rod pad plate 14 are fixedly connected to the lower ends of the inclined guide columns 16 arranged symmetrically front and back; the upper ends of the symmetrically arranged mold feet 12 are fixedly connected to the moving template 17.

[0037] The upper ends of the inclined guide pillars 16 arranged symmetrically front and back all penetrate the moving template 17 and are connected to the inner side of the male mold core 113. The male mold core 113 is located on the inner side of the upper end of the moving template 17. The upper surface of the moving template 17 is also symmetrically provided with positioning blocks 110.

[0038] The male mold core 113 is equipped with a gating channel 18 in the middle position. The upper surface of the male mold core 113 is connected to the molded car rearview mirror 111 which is symmetrically arranged front and back. The oblique guide pillars 16 which are symmetrically arranged front and back are connected to the molded car rearview mirror 111 on one side and to the slider 19 on the other side. The slider 19 is symmetrically arranged at the front and rear ends of the moving template 17 and is slidably connected to the moving template 17.

[0039] By adopting the above technical solution, during use, the positioning block 110 cooperates with the positioning groove, and the symmetrical lateral parting design of the inclined guide post 16 and the slider 19 effectively avoids product demolding deformation and tearing, ensuring the side features and appearance accuracy of the molded car rearview mirror 111, and improving the product qualification rate.

[0040] In this embodiment, the upper end of the moving template 17 is connected to the positioning groove provided on the lower surface of the female mold base 21 through the positioning blocks 110 arranged symmetrically. The female mold core 22 is installed on the inner side of the lower end of the female mold base 21, and the lower end of the female mold core 22 is connected to the male mold core 113.

[0041] The upper surface is fixedly installed with an upper template 23, and a sprue sleeve 24 is provided in the middle of the upper template 23.

[0042] By adopting the above technical solution, the gating channel 18 and the sprue sleeve 24 work together to ensure that the molten raw material stably and evenly fills the male mold core 113 and the female mold core 22, reducing defects such as material shortage and air bubbles, ensuring the optical performance and structural strength of the molded car rearview mirror 111, and meeting the requirements for use of automotive parts.

[0043] The working principle of this utility model is as follows: the female mold base 21, the female mold core 22, the moving mold plate 17, and the male mold core 113 are precisely matched and molded through the positioning block 110 and the positioning groove; the injection molding machine injects the molten raw material through the sprue sleeve 24 of the upper mold plate 23, and the raw material is evenly filled into the cavity surrounded by the female mold core 22, the male mold core 113 and the molded car rearview mirror 111 along the gating channel 18. The temperature control system of the mold base and the mold plate ensures that the raw material is fully solidified and molded.

[0044] When the mold opens, the female mold core assembly 2 separates from the mold base 1; under the support of the mold foot 12, the ejector pin fixing plate 13 and ejector pin pad 14 drive the ejector pin 15 to move upward, and the ejector pin 15 pushes the molded car rearview mirror 111 to detach from the male mold core 113; at the same time, the inclined guide post 16 moves with the moving template 17, driving the slider 19 to slide along the moving template 17 to complete the side parting, avoid interference with product demolding, and realize the smooth removal of the rearview mirror;

[0045] When in use, the positioning block 110 cooperates with the positioning groove, and the symmetrical side parting design of the inclined guide post 16 and the slider 19 effectively avoids product demolding deformation and tearing, ensuring the side features and appearance accuracy of the molded car rearview mirror 111, and improving the product qualification rate.

[0046] The gating channel 18 and the gate sleeve 24 work together to ensure that the molten material stably and evenly fills the male mold core 113 and female mold core 22, reducing defects such as material shortage and air bubbles, and ensuring the optical performance and structural strength of the molded car rearview mirror 111 to meet the requirements of automotive parts.

[0047] The lower template 11, mold feet 12, and connecting structures of each component of the mold base 1 provide stable support for the mold; the mold opening top groove 112 cooperates with the ejection mechanism to ensure smooth demolding, reduce mold wear, extend mold service life, and improve production continuity.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A processing mold for manufacturing automotive rearview mirrors, characterized in that: include Mold base (1), the upper end of which is connected to the female mold core assembly (2); The mold base (1) includes a lower template (11), which has a mold opening top groove (112) in the middle position, and mold feet (12) are fixedly installed on the upper surface of the lower template (11) in a symmetrical manner; a top rod fixing plate (13) is fixedly connected to the upper surface of the lower template (11), and a top rod (15) is fixedly installed on the upper surface of the top rod fixing plate (13) in a symmetrical manner from front to back. The upper end of the top rod (15) passes through the top rod pad (14), the moving template (17), and the pouring channel (18), and the top of the upper end of the top rod (15) is connected to the molded car rearview mirror (111) which is symmetrically arranged from front to back.

2. The processing mold for producing automotive rearview mirrors according to claim 1, characterized in that: The lower end of the push rod pad (14) is connected to the push rod fixing plate (13), and the push rod fixing plate (13) and the push rod pad (14) are both located between the mold feet (12) which are symmetrically arranged.

3. The processing mold for producing automotive rearview mirrors according to claim 2, characterized in that: The inner sides of the top rod fixing plate (13) and the top rod pad plate (14) are fixedly connected to the lower end of the inclined guide column (16) which is symmetrically arranged in front and back; the upper end of the mold foot (12) which is symmetrically arranged is fixedly connected to the moving template (17).

4. The processing mold for producing automotive rearview mirrors according to claim 3, characterized in that: The upper ends of the inclined guide pillars (16) arranged symmetrically in front and behind are all connected to the inner side of the moving template (17) and the male mold core (113). The male mold core (113) is located on the inner side of the upper end of the moving template (17). The upper surface of the moving template (17) is also symmetrically provided with positioning blocks (110).

5. The processing mold for producing automotive rearview mirrors according to claim 4, characterized in that: The male mold core (113) is equipped with a gating channel (18) in the middle position. The upper surface of the male mold core (113) is connected to the molded car rearview mirror (111) which is symmetrically arranged front and back. The inclined guide post (16) which is symmetrically arranged front and back is connected to the molded car rearview mirror (111) on one side and to the slider (19) on the other side. The slider (19) is symmetrically arranged at both ends of the moving template (17) and is slidably connected to the moving template (17).

6. The processing mold for producing automotive rearview mirrors according to claim 5, characterized in that: The upper end of the moving template (17) is connected to the positioning groove provided on the lower surface of the female mold base (21) through the symmetrically arranged positioning blocks (110). The lower inner side of the female mold base (21) is equipped with a female mold core (22), and the lower end of the female mold core (22) is connected to the male mold core (113).

7. The processing mold for producing automotive rearview mirrors according to claim 6, characterized in that: The upper surface is fixedly installed with an upper template (23), and a sprue sleeve (24) is provided in the middle of the upper template (23).