High efficiency injection mold

Through the innovative design of quick-release components and injection molding components, the problem of low demolding efficiency in traditional injection molds has been solved, achieving efficient demolding and simplified processing, thereby improving production efficiency and molding stability.

CN224588491UActive Publication Date: 2026-08-04FOSHAN SHUNDE JIERUN HARDWARE PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SHUNDE JIERUN HARDWARE PLASTIC CO LTD
Filing Date
2025-08-27
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional injection molds have low demolding efficiency, which leads to reduced production efficiency.

Method used

The design incorporates quick-release and injection molding components, including positioning rails, mold housings, springs, positioning plates, and injection nozzles. The spring force automatically counteracts the initial resistance during mold opening, and combined with the quick assembly and disassembly of bolts, it achieves efficient mold demolding.

Benefits of technology

It enables rapid assembly and disassembly of molds, improves mold changing efficiency and molding stability, simplifies mold cavity processing, and reduces the manufacturing cost of complex parts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to injection mold technical field, and disclose a kind of high -efficient injection mold, including base, stand and top seat, the base is provided with quick release assembly, the top seat is provided with injection molding assembly, the quick release assembly includes mounting seat, the top of mounting seat is fixedly connected with positioning rail, mould shell is slidably connected on the positioning rail, spring is installed on the mould shell, positioning sheet is installed on the positioning rail.The high -efficient injection mold, by bolt on top seat is removed, can remove the restriction effect of top seat to mould shell, then bolt on positioning sheet is removed, positioning sheet is taken off, under the elastic force of spring, two mould shells can be pushed apart along positioning rail to both sides, reach the benefit of efficient demoulding.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a high-efficiency injection mold. Background Technology

[0002] Injection molds are crucial molding tools in the injection molding process. They are precisely assembled from multiple components such as fixed molds and moving molds, and have a specific cavity structure. The shape of the cavity is consistent with the shape of the plastic product to be manufactured. They are widely used in many industries such as automobiles, electronics, home appliances, and daily necessities.

[0003] Traditional mold designs are complex, relying on intricate ejection systems. Complete separation of the moving and fixed molds is required during mold opening, resulting in slow demolding efficiency and reduced production efficiency. Therefore, a high-efficiency injection mold is proposed to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency injection mold to solve the problem of low demolding efficiency of traditional injection molds.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-efficiency injection mold, including a base, a column and a top seat, wherein a quick-release assembly is provided on the base and an injection assembly is provided on the top seat;

[0006] The quick-release assembly includes a mounting base, a positioning rail fixedly connected to the top of the mounting base, a mold shell slidably connected to the positioning rail, a spring installed on the mold shell, and a positioning piece installed on the positioning rail.

[0007] Preferably, the columns are fixedly connected to the base, and there are four columns distributed symmetrically in a central manner. The columns extend into the interior of the top seat, and bolts that are threadedly connected to the columns are installed on the top seat.

[0008] Preferably, the mounting base is fixedly connected to the top of the base, the column passes through the mounting base, and there are two mold shells that are symmetrically distributed on the positioning rail. The mold shells are tightly fitted to the mounting base.

[0009] Preferably, each of the two mold shells has a mounting groove on its opposite side, and the spring is installed between the two mounting grooves.

[0010] Preferably, there are two positioning pieces, which are respectively attached to the opposite sides of the two mold shells, and the positioning pieces are fixed to the positioning rail by bolts.

[0011] Preferably, the injection molding assembly includes an injection nozzle, the mold housing has a molding groove, and the mold housing has a connecting groove.

[0012] Preferably, a positioning block is fitted on the outer side of the injection nozzle, the positioning block is fixed to the top seat by bolts, the molding grooves on the left and right sides are combined to form a molding cavity, and an injection hole communicating with the connecting groove is opened in the injection nozzle.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, by removing the bolts on the top seat, the restrictive effect of the top seat on the mold shell can be released. Then, by removing the bolts on the positioning plate and taking off the positioning plate, the two mold shells can be pushed apart along the positioning rail under the elastic force of the spring, thus achieving the benefit of efficient demolding.

[0015] Secondly, this utility model uses a positioning block to fix the injection nozzle seat, pours injection slurry into the injection nozzle, and the slurry flows into the connecting groove along the injection hole, and then flows to the molding grooves on both sides through the connecting groove, which achieves the benefit of convenient material feeding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of another axial integral structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the quick-release assembly and related parts of this utility model;

[0019] Figure 4 This is a schematic diagram of the injection molding assembly and related parts of this utility model.

[0020] The components are: 1. Base; 2. Column; 3. Top seat; 4. Quick release assembly; 401. Mounting seat; 402. Positioning rail; 403. Mold shell; 404. Spring; 405. Positioning plate; 5. Injection assembly; 501. Injection nozzle; 5011. Positioning block; 502. Molding groove; 503. Connecting groove. Detailed Implementation

[0021] 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.

[0022] This utility model provides the following technical solution:

[0023] Example 1

[0024] Please see Figure 1 , Figure 2 and Figure 3 A high-efficiency injection mold includes a base 1, a column 2 and a top seat 3, and a quick-release assembly 4 is provided on the base 1;

[0025] The quick-release assembly 4 includes a mounting base 401, a positioning rail 402 fixedly connected to the top of the mounting base 401, a mold housing 403 slidably connected to the positioning rail 402, a spring 404 installed on the mold housing 403, and a positioning piece 405 installed on the positioning rail 402.

[0026] The column 2 is fixedly connected to the base 1. There are four columns 2, which are centrally symmetrically distributed. The columns 2 extend into the interior of the top seat 3. Bolts that are threadedly connected to the columns 2 are installed on the top seat 3.

[0027] The column 2 adopts a structure with four centrally symmetrically distributed columns and fixedly connected to the top seat 3 by bolts, which enhances the overall rigidity of the mold and prevents eccentric deformation during injection molding. The threaded connection method facilitates quick disassembly and assembly of the top seat 3, improving mold change efficiency.

[0028] Mounting base 401 is fixedly connected to the top of base 1. Column 2 passes through mounting base 401. There are two mold shells 403, which are symmetrically distributed on positioning rail 402. Mold shells 403 are tightly fitted with mounting base 401.

[0029] Mounting base 401 is fixed to base 1 and fits tightly with symmetrically distributed mold shells 403 to ensure centering when the two mold halves are closed. Column 2 passes through mounting base 401 to further strengthen support, prevent displacement of mold shells 403 during high-pressure injection, and improve molding accuracy.

[0030] The two mold shells 403 have mounting slots on opposite sides, and the spring 404 is installed between the two mounting slots.

[0031] By installing springs 404 in the mounting grooves on opposite sides of the two mold shells 403, the elastic force of the springs 404 can automatically offset the initial resistance when the mold opens, reduce the load on the ejection mechanism, and at the same time assist in the rapid separation of the two mold halves, shortening the cycle time.

[0032] There are two positioning pieces 405, which are respectively attached to the opposite sides of the two mold shells 403. The positioning pieces 405 are fixed to the positioning rail 402 by bolts.

[0033] The positioning piece 405 is fixed to the positioning rail 402 by bolts and fits against the opposite side of the mold shell 403, so as to achieve precise positioning of the mold shell 403 and prevent sliding and displacement.

[0034] By removing the bolts on the top seat 3, the restriction effect of the top seat 3 on the mold shell 403 can be released. Then, by removing the bolts on the positioning piece 405 and taking off the positioning piece 405, the two mold shells 403 can be pushed to both sides along the positioning rail 402 under the elastic force of the spring 404, thus achieving the benefit of efficient demolding.

[0035] Example 2

[0036] Please see Figure 1 , Figure 2 and Figure 4 Furthermore, based on Embodiment 1, the following is obtained: an injection molding assembly 5 is provided on the top seat 3;

[0037] The injection molding assembly 5 includes an injection nozzle 501, a molding groove 502 on the mold housing 403, and a connecting groove 503 on the mold housing 403.

[0038] The injection nozzle 501 is connected to the molding groove 502 and connecting groove 503 on the mold shell 403 to form a closed injection channel, reducing molten material retention. The molding cavity design of the left and right molding grooves 502 simplifies the mold cavity processing and reduces the manufacturing cost of complex parts.

[0039] A positioning block 5011 is fitted on the outside of the injection nozzle 501. The positioning block 5011 is fixed to the top seat 3 by bolts. The left and right molding grooves 502 are combined to form a molding cavity. An injection hole communicating with the connecting groove 503 is opened in the injection nozzle 501.

[0040] The injection nozzle 501 is fixed to the top seat 3 by the positioning block 5011 to ensure that the injection hole and the connecting groove 503 are accurately aligned to avoid material leakage. The molding cavity structure of the two side molding grooves 502 can achieve symmetrical filling, reduce weld lines, and improve the strength of the product.

[0041] Through the above technical solution, the injection nozzle 501 is fixed by the positioning block 5011, and the injection slurry is poured into the injection nozzle 501. The slurry flows into the connecting groove 503 along the injection hole and flows to the molding grooves 502 on both sides through the connecting groove 503, which achieves the benefit of convenient material feeding.

[0042] In actual operation, when this device is in use, firstly, the two mold shells 403 are slidably installed on the mounting base 401 of the base 1 via the positioning rail 402 and fixed by the positioning piece 405. The spring 404 is pre-compressed between the mounting grooves of the two mold shells 403. Then, the top seat 3 is fixedly connected to the four centrally symmetrically distributed columns 2 by bolts to ensure the rigidity of the overall structure. During injection molding, the molten material is injected from the injection nozzle 501 and flows into the connecting groove 503 of the mold shell 403 through the injection hole inside. Then, it evenly fills the cavity formed by the combination of the two side molding grooves 502. The injection nozzle 501 is precisely positioned by the positioning block 5011 to prevent material leakage. After molding, the bolts of the top seat 3 are removed to release the restriction on the mold shell 403. Then, the bolts of the positioning piece 405 are removed. The elastic force of the spring 404 pushes the two mold shells 403 to separate to both sides along the positioning rail 402 to achieve rapid demolding. The whole process significantly improves the mold changing efficiency and molding stability through the synergistic effect of the quick-release component 4 and the injection component 5.

[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 may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency injection mold, comprising a base (1), a column (2), and a top seat (3), characterized in that: The base (1) is provided with a quick-release assembly (4), and the top seat (3) is provided with an injection molding assembly (5). The quick-release assembly (4) includes a mounting base (401), a positioning rail (402) is fixedly connected to the top of the mounting base (401), a mold shell (403) is slidably connected to the positioning rail (402), a spring (404) is installed on the mold shell (403), and a positioning piece (405) is installed on the positioning rail (402).

2. The high-efficiency injection mold according to claim 1, characterized in that: The column (2) is fixedly connected to the base (1). There are four columns (2) and they are centrally symmetrically distributed. The column (2) extends into the top seat (3). The top seat (3) is equipped with bolts that are threadedly connected to the column (2).

3. The high-efficiency injection mold according to claim 1, characterized in that: The mounting base (401) is fixedly connected to the top of the base (1), the column (2) passes through the mounting base (401), and there are two mold shells (403) which are symmetrically distributed on the positioning rail (402). The mold shells (403) are tightly fitted to the mounting base (401).

4. The high-efficiency injection mold according to claim 1, characterized in that: The two mold shells (403) are provided with mounting slots on opposite sides, and the spring (404) is installed between the two mounting slots.

5. The high-efficiency injection mold according to claim 1, characterized in that: The number of positioning pieces (405) is two, and they are respectively attached to the opposite sides of the two mold shells (403). The positioning pieces (405) are fixed to the positioning rail (402) by bolts.

6. The high-efficiency injection mold according to claim 1, characterized in that: The injection molding assembly (5) includes an injection nozzle (501), a molding groove (502) is provided on the mold shell (403), and a connecting groove (503) is provided on the mold shell (403).

7. A high-efficiency injection mold according to claim 6, characterized in that: The injection nozzle (501) is fitted with a positioning block (5011) on its outer side. The positioning block (5011) is fixed to the top seat (3) by bolts. The molding grooves (502) on the left and right sides are combined to form a molding cavity. The injection nozzle (501) is provided with an injection hole that communicates with the connecting groove (503).