Forming die for buffer block of window glass lifter

By introducing cooling water channels and a composite ejection mechanism into the glass lifter buffer block mold, the problem of low mold cooling efficiency was solved, enabling rapid cooling and mass production, and improving processing efficiency and product quality.

CN224240232UActive Publication Date: 2026-05-15NINGHAI COUNTY HONGYUAN MOLDING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGHAI COUNTY HONGYUAN MOLDING CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing glass lifter buffer block production molds have limited functionality and rely on natural or air cooling, resulting in reduced processing efficiency and product molding quality.

Method used

It adopts built-in cooling water channels in the upper and lower cores, combined with an industrial refrigeration circulation system to achieve rapid and uniform cooling. It also supports synchronous injection molding through multiple cavity structures symmetrically distributed on both sides of the gating system, combined with the linkage design of the movable rod and guide rod of the composite ejection mechanism.

Benefits of technology

It significantly shortens the molding cycle, improves processing efficiency, ensures complete and reliable product demolding, has a simplified overall structure, and takes into account both cooling optimization and batch molding, thereby improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forming die for a buffer block of a window glass lifter, and relates to the technical field of dies. Comprising a mold body, the mold body comprises an upper mold and a lower mold, an upper mold core is arranged in the upper mold, an upper cooling water channel is arranged in the upper mold core, a lower mold core matched with the upper mold core is arranged in the lower mold, and a lower cooling water channel is arranged in the lower mold core. The cooling water paths arranged in the upper mold core and the lower mold core are matched with an industrial refrigerator circulating system, rapid and uniform cooling is achieved, the forming period is remarkably shortened, the multiple mold cavity structures symmetrically distributed on the two sides of the pouring gate support synchronous injection molding, batch production can be completed through single-time mold closing, the machining efficiency is greatly improved, and the production cost is reduced. The composite ejection mechanism adopts the linkage design of the movable rod and the guide rod, so that stable and synchronous ejection of the ejection rod is ensured, product demolding is complete and reliable, the overall structure is simple and compact, the functions of cooling optimization, batch forming and stable ejection are considered, the production benefit is comprehensively improved, and the composite ejection mechanism has wide application prospects.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold for forming a buffer block of a glass lifter. Background Technology

[0002] Molds are core tools in industrial manufacturing used for shaping products. Their design and application directly affect molding efficiency and precision. Window regulator buffer blocks are important components in window lifting systems, and their production requires mold forming. However, existing window regulator buffer block production molds have the following shortcomings in use:

[0003] Existing glass lifter buffer block molds have limited functionality and generally rely on natural heat dissipation or air cooling. This undoubtedly reduces processing efficiency and product molding quality, especially for mass-produced glass lifter buffer blocks. Utility Model Content

[0004] This invention provides a mold for forming a buffer block of a glass lifter to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a glass lifter buffer block forming mold, comprising a mold body, the mold body comprising an upper mold and a lower mold, the upper mold having an upper core inside, the upper core having an upper cooling water channel inside, the lower mold having a lower core matching the upper core inside, and the lower core having a lower cooling water channel inside.

[0006] Furthermore, the lower core is provided with a gating system and several cavities evenly spaced on both sides of the gating system.

[0007] Furthermore, the bottom of the upper core is also provided with a sprue that matches the interior of the lower core, and the top of the upper mold is provided with a top plate, the interior of which is provided with a material channel that communicates with the sprues inside the lower core and the upper core.

[0008] Furthermore, the inlet and outlet of the upper cooling water channel extend to one side of the upper mold, and the inlet and outlet of the lower cooling water channel extend to one side of the lower mold.

[0009] Furthermore, stabilizing rods are provided inside each of the four corners of the lower mold, and the top of the stabilizing rods extends into the interior of the upper mold.

[0010] Furthermore, the bottom of the lower mold is provided with two mold feet, and the bottom of the two mold feet is provided with a base plate.

[0011] Furthermore, a cover plate is movably disposed between the two mold feet, and an ejector plate is disposed on the top of the cover plate.

[0012] Furthermore, the top of the ejector plate is provided with ejector rods that correspond to the number of cavities.

[0013] Furthermore, each of the four corners of the ejector plate is provided with a movable rod, the top of which extends to the top of the lower mold.

[0014] Furthermore, the base plate is provided with no fewer than two guide rods inside, the top ends of which penetrate the interior of the cover plate and the ejector plate and extend to the top of the ejector plate.

[0015] Compared with the prior art, the present invention provides a mold for forming a buffer block of a glass lifter, which has the following advantages:

[0016] This glass lifter buffer block molding mold achieves rapid and uniform cooling through the built-in cooling water channels in the upper and lower cores, combined with an industrial refrigeration circulation system, significantly shortening the molding cycle. The multiple cavities symmetrically distributed on both sides of the sprue support synchronous injection molding, enabling mass production with a single mold closing, greatly improving processing efficiency. The composite ejection mechanism adopts a linkage design of movable rod and guide rod to ensure smooth and synchronous ejection of the material, ensuring complete and reliable product demolding. The overall structure is simple and compact, taking into account cooling optimization, mass production, and stable ejection functions, comprehensively improving production efficiency and showing broad application prospects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a bottom view of the present invention;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure 4 This is a schematic diagram of the upper core structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the exploded structure of this utility model;

[0022] Figure 6 This is an exploded view of the lower mold structure of this utility model.

[0023] In the diagram: 1. Mold body; 11. Upper mold; 111. Top plate; 112. Sprue; 12. Lower mold; 121. Stabilizing rod; 13. Upper core; 131. Upper cooling water channel; 14. Lower core; 141. Lower cooling water channel; 15. Mold foot; 16. Base plate; 161. Guide rod; 17. Cover plate; 18. Ejector plate; 181. Movable rod; 19. Ejector pin; 2. Sprue; 3. Cavity. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-6 This utility model discloses a glass lifter buffer block forming mold, including a mold body 1. The mold body 1 includes an upper mold 11 and a lower mold 12. The upper mold 11 is provided with an upper core 13 and an upper cooling water channel 131. The lower mold 12 is provided with a lower core 14 that matches the upper core 13 and a lower cooling water channel 141.

[0026] Specifically, the lower core 14 is provided with a gating system 2 and several cavities 3 that are equally spaced on both sides of the gating system 2.

[0027] In this embodiment, the design of distributing several cavities 3 at equal intervals on both sides of the gating 2 can accelerate the injection of raw materials into the cavity 3, improve molding efficiency, and meet the requirements of batch processing.

[0028] Specifically, the bottom of the upper core 13 is also provided with a sprue 2 that matches the interior of the lower core 14, and the top of the upper mold 11 is provided with a top plate 111. The interior of the top plate 111 is provided with a material channel 112 that communicates with the sprue 2 inside the lower core 14 and the upper core 13.

[0029] In this embodiment, after the upper mold 11 and the lower mold 12 are closed, the raw material is injected into the interior of the gating 2 through the material channel 112. The gating 2 then distributes the raw material to several cavities 3 on both sides of it, so that the cooling operation can be carried out.

[0030] Specifically, the inlet and outlet of the upper cooling water channel 131 extend to one side of the upper mold 11, and the inlet and outlet of the lower cooling water channel 141 extend to one side of the lower mold 12.

[0031] In this embodiment, coolant is introduced into the inlet through an industrial refrigeration unit or an ice water chiller and the coolant is recovered through the outlet. The upper cooling water channel 131 and the lower cooling water channel 141 are arranged according to the length and width of the cavity 3 to ensure that all cavities 3 can be effectively cooled, improve molding efficiency, and guarantee production output.

[0032] Specifically, a stabilizing rod 121 is provided inside each of the four corners of the lower mold 12, and the top of the stabilizing rod 121 extends into the interior of the upper mold 11.

[0033] In this embodiment, the setting of the stabilizer bar 121 ensures that the upper mold 11 and the lower mold 12 are precisely aligned. The design of the stabilizer bar 121 passing through the upper and lower molds 12 enhances the mold closing accuracy, effectively suppresses mold wear caused by eccentric load, and makes the mold opening and closing operations more stable.

[0034] Specifically, the bottom of the lower mold 12 is provided with two mold feet 15, and the bottom of the two mold feet 15 is provided with a base plate 16.

[0035] In this embodiment, the cooperation between the mold foot 15 and the base plate 16 ensures the stability of the lower mold 12, which not only ensures the overall rigidity of the mold, but also reserves operating space for the ejection mechanism.

[0036] Specifically, a cover plate 17 is movably disposed between the two mold feet 15, and an ejector plate 18 is disposed on the top of the cover plate 17. The ejector plate 18 is provided with ejector rods 19 in the same number as the cavities 3.

[0037] In this embodiment, the cover plate 17 and the ejector plate 18 are driven by a push mechanism. The push mechanism is a hydraulic cylinder or a motor and a ball screw mechanism. After the product is formed inside the cavity 3, the push mechanism is activated to eject the material. The cover plate 17 and the ejector plate 18 rise, and the ejector rod 19 at the top of the ejector plate 18 rises inside the cavity 3 to eject the product.

[0038] Specifically, each of the four corners of the ejector plate 18 is provided with a movable rod 181, the top of which extends to the top of the lower mold 12.

[0039] In this embodiment, when the cover plate 17 and the ejector plate 18 rise, the movable rod 181 rises synchronously, and the movable rod 181 lifts the upper mold 11. The setting of the movable rod 181 ensures the stability of the cover plate 17 and the ejector plate 18 during their up and down movement.

[0040] Specifically, the base plate 16 is provided with no fewer than two guide rods 161 inside, the top of the guide rods 161 passing through the interior of the cover plate 17 and the ejector plate 18 and extending to the top of the ejector plate 18.

[0041] In this embodiment, the cover plate 17 and the ejector plate 18 are provided with bushings that are fitted with guide rod 161. When the cover plate 17 and the ejector plate 18 rise, they slide on the guide rod 161 through the bushings. The setting of guide rod 161, together with movable rod 181, further ensures the stability of cover plate 17 and ejector plate 18 during the up and down movement.

[0042] In summary, this glass lifter buffer block molding mold achieves rapid and uniform cooling through the built-in cooling water channels of the upper core 13 and lower core 14 in conjunction with the industrial refrigeration circulation system, significantly shortening the molding cycle. The multiple cavities 3 symmetrically distributed on both sides of the sprue 2 support synchronous injection molding, enabling mass production to be completed in a single mold closing, greatly improving processing efficiency. The composite ejection mechanism adopts a linkage design of movable rod 181 and guide rod 161 to ensure that the ejector rod 19 ejects material smoothly and synchronously, ensuring complete and reliable product demolding. The overall structure is simple and compact, taking into account cooling optimization, mass production and stable ejection functions, comprehensively improving production efficiency and having broad application prospects.

[0043] 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 mold for forming a buffer block of a glass lifter, comprising a mold body (1), characterized in that: The mold body (1) includes an upper mold (11) and a lower mold (12). The upper mold (11) has an upper core (13) inside and an upper cooling water channel (131) inside. The lower mold (12) has a lower core (14) inside that matches the upper core (13) and a lower cooling water channel (141) inside. The lower core (14) is provided with a sprue (2) and several cavities (3) evenly distributed on both sides of the sprue (2); the bottom of the upper core (13) is also provided with a sprue (2) that matches the interior of the lower core (14); the top of the upper mold (11) is provided with a top plate (111); the interior of the top plate (111) is provided with a channel (112) that connects to the sprue (2) inside the lower core (14) and the upper core (13).

2. The glass lifter buffer block forming mold according to claim 1, characterized in that: The inlet and outlet of the upper cooling water channel (131) extend to one side of the upper mold (11), and the inlet and outlet of the lower cooling water channel (141) extend to one side of the lower mold (12).

3. The glass lifter buffer block forming mold according to claim 1, characterized in that: Stabilizing rods (121) are provided inside the four corners of the lower mold (12), and the top of the stabilizing rods (121) extends into the interior of the upper mold (11).

4. The glass lifter buffer block forming mold according to claim 1, characterized in that: The bottom of the lower mold (12) is provided with two mold feet (15), and the bottom of the two mold feet (15) is provided with a base plate (16).

5. A glass lifter buffer block forming mold according to claim 4, characterized in that: A cover plate (17) is movably disposed between the two mold feet (15), and an ejector plate (18) is disposed on the top of the cover plate (17).

6. The glass lifter buffer block forming mold according to claim 5, characterized in that: The top of the ejector plate (18) is provided with ejector rods (19) in the same number as the cavities (3).

7. A glass lifter buffer block forming mold according to claim 5, characterized in that: The ejector plate (18) has movable rods (181) inside each of its four corners, and the top of the movable rods (181) extends to the top of the lower mold (12).

8. A glass lifter buffer block forming mold according to claim 4, characterized in that: The base plate (16) is provided with at least two guide rods (161), the top of which penetrates the interior of the cover plate (17) and the ejector plate (18) and extends to the top of the ejector plate (18).