Horn mouth product mold

By combining a fixed template, a moving template, a fixed mold core, a moving mold core, a bent pin, and a small slider, along with a guide plate and a cooling groove design, the problems of difficult detachment of the undercut at the flared end of plastic products and excessively high cavity temperature are solved, thus achieving high-quality production of plastic products.

CN224145252UActive Publication Date: 2026-04-21XIAMEN XIN ENTAI PRECISION MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN XIN ENTAI PRECISION MOULD CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The undercut at the flared end of plastic products is difficult to detach, and the excessively high temperature in the injection cavity during injection molding affects product quality.

Method used

The mold adopts a combination structure of fixed template, moving template, fixed mold core, moving mold core, moving mold core, bent pin and small slider, combined with guide plate and cooling groove design to achieve smooth release of the undercut and effective cooling of the mold.

Benefits of technology

This enabled smooth release of the inverted parts and effective cooling of the mold, improving the quality and production efficiency of plastic products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flared product mold. The flared product mold comprises a fixed mold plate, a movable mold plate, a fixed mold core, a movable mold core, a movable mold core, a plurality of bent pins and a plurality of small sliding blocks, the fixed mold plate and the movable mold plate are connected together in an abutting mode, the fixed mold core is fixed in the fixed mold plate, the movable mold core is fixed in the movable mold plate, the fixed mold core and the movable mold core are connected together in an abutting mode, the lower end of the movable mold core is fixed to the movable mold core, the upper end of the bent pin is fixed to the fixed mold core, and the lower portion of the bent pin is movably arranged in a guide groove in the outer side of the small sliding block in a penetrating mode. The small sliding block is connected into the sliding groove of the movable mold core in a sliding mode, the inner end of the small sliding block extends into the cavity, and the inner end of the small sliding block is provided with an inverted hook used for forming an inverted buckle of a plastic product. The bent pins respectively drive the small sliding blocks to move towards the inner side, so that barbs at the inner ends of the small sliding blocks are better separated from inverted buckles of a plastic product, and then the plastic product is ejected out by the ejection plate through the ejection rod.
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Description

Technical Field

[0001] This utility model relates to an injection mold, and more particularly to a mold for a flared mouth product. Background Technology

[0002] Plastic injection molds are tools used to produce plastic products and have a wide range of applications. For example... Figure 1 As shown, the plastic product 100 is a flared component with four undercuts 101 at the bottom. These undercuts need to be released when the mold is opened. Furthermore, the inner cavity of the plastic product 100 is relatively deep, which can easily cause the cavity temperature to be too high during injection molding, affecting product quality. Utility Model Content

[0003] The purpose of this utility model is to provide a flared mouth product mold that can be better separated from the inverted plastic product.

[0004] To achieve the above objectives, the technical solution of this utility model is:

[0005] This utility model is a flared mouth product mold, including a fixed template, a movable template, a fixed mold core, a movable mold core, a movable mold core, multiple bent pins, and multiple small sliders;

[0006] The fixed mold plate and the moving mold plate are joined together. The fixed mold core is fixed inside the fixed mold plate, and the moving mold core is fixed inside the moving mold plate and joined together. The lower end of the moving mold core is fixed on the moving mold core, and the upper end of the bent pin is fixed on the fixed mold core. The lower part of the bent pin is movably inserted into the guide groove outside the small slider. The small slider slides in the groove of the moving mold core. The inner end of the small slider extends into the cavity. The inner end of the small slider has a barb for molding plastic products with an undercut.

[0007] This utility model also includes a guide plate, which has spirally rotating blades; the moving mold core is conical in shape, and has a cooling groove inside which is connected to the cooling groove on the moving mold core. The lower end of the guide plate is fixed on the moving mold core 4, and the upper part of the guide plate passes into the cooling groove of the moving mold core. The water inlet end of the guide plate is connected to the cooling water inlet, and the water outlet end of the guide plate is connected to the cooling water outlet. Both the cooling water inlet and the cooling water outlet 43 are opened on the moving mold core.

[0008] This utility model also includes a slider guide block; the upper end of the slider guide block is fixed on the fixed mold core, and the lower end of the slider guide block abuts against the top surface of the small slider.

[0009] This utility model includes four bent pins and four small sliders, with the four bent pins respectively cooperating with the four small sliders.

[0010] After adopting the above solution, since this utility model includes a fixed template, a moving template, a fixed mold core, a moving mold core, a moving mold core, multiple bent pins, and multiple small sliders, the multiple bent pins drive the multiple small sliders to move inward, so that the barbs at the inner end of the small sliders can be better disengaged from the undercut of the plastic product, and then the plastic product is ejected by the top plate through the ejector rod; in addition, this utility model is provided with a guide plate in the moving mold core, which allows cooling water to circulate in the cooling tank of the moving mold core, fully cooling the moving mold core and ensuring the quality of the plastic product.

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0012] Figure 1 It is an isometric drawing of a plastic product;

[0013] Figure 2 This is an isometric drawing of this utility model;

[0014] Figure 3 This is a cross-sectional view of the present invention;

[0015] Figure 4 This is a top-view exploded perspective view of the cooperation between the bent pin and the small slider of this utility model.

[0016] Figure 5 This is an exploded perspective view of the bent pin and small slider of this utility model. Detailed Implementation

[0017] like Figures 1-5 As shown, this utility model is a flared mouth product mold, including a fixed template 1, a movable template 2, a fixed mold core 3, a movable mold core 4, a movable mold core 5, four bent pins 6, four small sliders 7, a slider guide block 8, and a guide plate 9.

[0018] The fixed mold plate 1 and the moving mold plate 2 are joined together. The fixed mold core 3 is fixed inside the fixed mold plate 1, and the moving mold core 4 is fixed inside the moving mold plate 2. The fixed mold core 3 and the moving mold core 4 are joined together. The lower end of the moving mold core 5 is fixed on the moving mold core 4. The upper end of the bent pin 6 is fixed on the fixed mold core 3. The lower part of the bent pin 6 is movably inserted into the guide groove 71 on the outside of the small slider 7. The four bent pins 6 are respectively engaged with the four small sliders 7. The four small sliders 7 are respectively slidably connected in the four sliding grooves 41 of the moving mold core 4. The inner end of the small slider 7 extends into the cavity. The inner end of the small slider 7 has a barb 72 for molding the plastic product undercut. The upper end of the slider guide block 8 is fixed on the fixed mold core 4, and the lower end of the slider guide block 8 is attached to the top surface of the small slider 7, forming a guiding effect on the small slider 7.

[0019] The guide plate 9 has spiral blades 91; the moving mold core 5 is conical in shape and has a cooling groove 51 inside, which is connected to the cooling groove 44 on the moving mold core 4. The lower end of the guide plate 9 is fixed to the moving mold core 4, and the upper part of the guide plate 9 is inserted into the cooling groove 51 of the moving mold core 5. The water inlet end of the guide plate 9 is connected to the cooling water inlet 42, and the water outlet end of the guide plate 9 is connected to the cooling water outlet 43. Both the cooling water inlet 42 and the cooling water outlet 43 are opened on the moving mold core 4.

[0020] The working principle of this utility model:

[0021] 1. The four bent pins 6 drive the four small sliders 7 to move inward, so that the barbs 72 at the inner end of the small sliders 7 can be better disengaged from the buckles 101 of the plastic product 100, and then the top plate 10 pushes the plastic product 100 out through the push rod 20.

[0022] 2. Cooling water flows into the cooling tank 51 of the moving mold core 5 from the cooling water inlet 42, circulates in the cooling tank 51 under the guidance of the guide plate 9, and then flows out from the cooling water outlet 43, fully cooling the moving mold core 5.

[0023] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model should still fall within the scope of the patent of the present utility model.

Claims

1. A spout product mold characterized by: It includes a fixed template, a moving template, a fixed mold core, a moving mold core, a moving mold core, multiple bent pins, and multiple small sliders; The fixed mold plate and the moving mold plate are joined together. The fixed mold core is fixed inside the fixed mold plate, and the moving mold core is fixed inside the moving mold plate and joined together. The lower end of the moving mold core is fixed on the moving mold core, and the upper end of the bent pin is fixed on the fixed mold core. The lower part of the bent pin is movably inserted into the guide groove outside the small slider. The small slider slides in the groove of the moving mold core. The inner end of the small slider extends into the cavity. The inner end of the small slider has a barb for molding plastic products with an undercut.

2. The spout product mold of claim 1, wherein: It also includes a guide plate with spirally rotating blades; the moving mold core is conical in shape and has a cooling groove inside which is connected to the cooling groove on the moving mold core. The lower end of the guide plate is fixed to the moving mold core, and the upper part of the guide plate passes into the cooling groove of the moving mold core. The water inlet end of the guide plate is connected to the cooling water inlet, and the water outlet end of the guide plate is connected to the cooling water outlet. Both the cooling water inlet and the cooling water outlet are located on the moving mold core.

3. The spout product mold of claim 1, wherein: It also includes a slider guide block; the upper end of the slider guide block is fixed on the fixed mold core, and the lower end of the slider guide block abuts against the top surface of the small slider.

4. The spout product mold of claim 1, wherein: It includes four bent pins and four small sliders, with the four bent pins engaging with the four small sliders respectively.