Simple valve needle runner-free feed port die

The simplified valve needle mold, with its runnerless structure and mica insulation design, solves the problems of material waste and low efficiency in thermosetting molds, achieving environmental protection, energy saving, and improved injection molding efficiency.

CN223644152UActive Publication Date: 2025-12-09SHAOXING SHANGYU LONGBAOSHUN MOLD CO LTD
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Patent Information

Application Number
CN202423269539.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-09
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing thermosetting molds suffer from problems such as material waste, high cost, environmental pollution, and low efficiency due to runner design.

Method used

A simple valve needle mold with a flow channel-free structure utilizes a heat insulation ring and heat insulation pad made of mica material, combined with guide post positioning and guidance, to achieve a flow channel-free design.

Benefits of technology

It achieves material saving, cost saving, environmental protection and energy saving, improved injection molding efficiency, and improved product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a simple valve needle runner-free feed port die, and belongs to the field of die machine manufacturing. The injection mold comprises an upper panel, an upper mold foot, a runner ejector pin plate, an upper ejector pin plate, an upper runner plate, a lower runner plate, a heat insulation plate, a fixed mold, a movable mold, a lower mold foot, a lower bottom plate, a lower mold ejector pin panel, a lower mold ejector pin bottom plate, a heat insulation ring, a valve needle and a heat insulation pad, and the upper panel, the upper mold foot, the upper runner plate, the lower runner plate, the heat insulation plate and the fixed mold are connected through screws. The runner ejector plate is matched with the upper ejector plate, the upper runner plate is connected with the lower runner plate, the movable mold and the lower mold foot are connected with the lower bottom plate, the lower mold ejector panel is movably connected with the lower mold ejector bottom plate, the heat insulation ring is arranged outside the valve needle, and the heat insulation pad is arranged at the top of the valve needle. The utility model has reasonable structural design, adopts a runner-free structure, saves materials and cost, is environment-friendly and energy-saving, and meets the use requirements.
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Description

Technical Field

[0001] This utility model relates to a mold, and more particularly to a simple valve needle without a flow channel feed port mold, which belongs to the field of mold machinery manufacturing. Background Technology

[0002] Existing thermosetting molds have runners on the parting surface, which cause the thermosetting material to begin to solidify during the flow process. In addition, the material itself has poor fluidity, so the runners are designed to be relatively large. Each molded part has a section of waste material in the runner, which requires an additional process to remove the corresponding waste material, i.e., the stalk.

[0003] The above structure has the following drawbacks: 1) The presence of flow channels results in excessive material consumption and high costs; 2) The materials cannot be decomposed and recycled, leading to significant environmental pollution; 3) The flow time is long, resulting in low efficiency, and the pre-solidification of materials in the flow channels affects product quality.

[0004] Therefore, it is particularly necessary to provide a mold with a reasonable structural design that saves materials, reduces costs, is environmentally friendly and energy-saving, and has high injection efficiency. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a simple valve needle flow channelless inlet mold with reasonable structural design, adopting a flow channelless structure, saving materials, saving costs, and being environmentally friendly and energy-saving.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: This simple valve needle flow channelless inlet mold includes an upper panel, an upper mold foot, a flow channel ejector plate, an upper ejector plate, an upper flow channel plate, a lower flow channel plate, a heat insulation plate, a fixed mold, a moving mold, a lower mold foot, and a lower base plate. The upper panel, upper mold foot, upper flow channel plate, lower flow channel plate, heat insulation plate, and fixed mold are connected by screws. The flow channel ejector plate cooperates with the upper ejector plate, the upper flow channel plate is connected to the lower flow channel plate, and the moving mold, lower mold foot, and lower base plate are connected. The feature is that it also includes a lower mold ejector plate, a lower mold ejector base plate, a heat insulation ring, a valve needle, and a heat insulation pad. The lower mold ejector plate and the lower mold ejector base plate are movably connected. A heat insulation ring is provided on the outside of the valve needle, and a heat insulation pad is provided on the top of the valve needle.

[0007] Preferably, the present invention also includes a guide post, wherein the flow channel ejector plate and the upper ejector plate are positioned and guided by the guide post.

[0008] Preferably, the present invention also includes a dustproof plate, which is disposed on the outside of the lower mold foot.

[0009] Preferably, both the heat insulation ring and the heat insulation pad described in this utility model are made of mica material.

[0010] Compared with the prior art, this utility model has the following advantages and effects: the overall structure is reasonably designed, safe and reliable, adopts a channelless structure, saves materials and costs, and is environmentally friendly and energy-saving; it is equipped with a heat insulation ring and heat insulation pad structure, both of which are made of mica material to meet the usage requirements. Attached Figure Description

[0011] Figure 1 This is a cross-sectional internal structure diagram of an embodiment of the present invention.

[0012] Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0013] In the diagram: 1. Upper mold plate, 2. Runner ejector plate, 3. Upper ejector plate, 4. Upper runner plate, 5. Lower runner plate, 6. Heat insulation plate, 7. Fixed mold, 8. Moving mold, 9. Dustproof plate, 10. Lower mold plate, 11. Lower base plate, 12. Guide pillar, 13. Lower mold ejector plate, 14. Lower mold ejector base plate, 15. Heat insulation ring, 16. Valve pin, 17. Heat insulation pad, 18. Spring, 19. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0015] Example

[0016] See Figures 1 to 2 The simplified valve needle flow channelless inlet mold of this embodiment includes an upper panel 1, an upper mold foot 2, a flow channel ejector plate 3, an upper ejector plate 4, an upper flow channel plate 5, a lower flow channel plate 6, a heat insulation plate 7, a fixed mold 8, a moving mold 9, a lower mold foot 11, a lower base plate 12, a lower mold ejector plate 14, a lower mold ejector base plate 15, a heat insulation ring 16, a valve needle 17, and a heat insulation pad 18. The upper panel 1, the upper mold foot 2, the upper flow channel plate 5, the lower flow channel plate 6, the heat insulation plate 7, and the fixed mold 8 are connected by screws. The upper flow channel plate 5 is connected to the lower flow channel plate 6, and the moving mold 9 and the lower mold foot 11 are connected to the lower base plate 12.

[0017] In this embodiment, the lower mold ejector plate 14 is movably connected to the lower mold ejector base plate 15, and a mica heat insulation ring 16 is provided on the outside of the valve needle 17, and a heat insulation pad 18 is provided on the top of the valve needle 17.

[0018] In this embodiment, the flow channel ejector plate 3 and the upper ejector plate 4 are positioned and guided by the guide post 13.

[0019] In this embodiment, multiple springs 19 are provided between the flow channel ejector plate 3 and the upper ejector plate 4. The upper ejector plate 4 is ejected by the multiple springs 19. The flow channel ejector plate 3 is ejected by the ejection system of an external machine.

[0020] In this embodiment, the dustproof plate 10 is disposed outside the lower mold foot 11; the heat insulation plate 7 is disposed between the lower runner plate 6 and the fixed mold 8.

[0021] In this embodiment, both the heat insulation ring 16 and the heat insulation pad 18 are made of mica material.

[0022] Based on the above description, those skilled in the art are already able to implement it.

[0023] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A simple valve needle inlet mold without a flow channel, comprising an upper panel (1), an upper mold foot (2), a flow channel ejector plate (3), an upper ejector plate (4), an upper flow channel plate (5), a lower flow channel plate (6), a heat insulation plate (7), a fixed mold (8), a moving mold (9), a lower mold foot (11), and a lower base plate (12). The upper panel (1), upper mold foot (2), upper flow channel plate (5), lower flow channel plate (6), heat insulation plate (7), and fixed mold (8) are connected by screws. The flow channel ejector plate (3) mates with the upper ejector plate (4). The upper flow channel plate (5) is connected to the lower flow channel plate (6). The moving mold (9) and the lower mold foot (11) are connected to the lower base plate (12). The mold is characterized by: It also includes a lower mold ejector plate (14), a lower mold ejector base plate (15), a heat insulation ring (16), a valve pin (17), and a heat insulation pad (18). The lower mold ejector plate (14) is movably connected to the lower mold ejector base plate (15). A heat insulation ring (16) is provided on the outside of the valve pin (17), and the heat insulation pad (18) is provided on the top of the valve pin (17).

2. The simplified valve needle channelless feed inlet mold according to claim 1, characterized in that: It also includes a guide post (13), through which the flow channel ejector plate (3) and the upper ejector plate (4) are positioned and guided.

3. The simplified valve needle channelless feed inlet mold according to claim 1, characterized in that: It also includes a dustproof plate (10), which is disposed outside the lower mold foot (11).

4. The simplified valve needle channelless feed inlet mold according to claim 1, characterized in that: Both the heat insulation ring (16) and the heat insulation pad (18) are made of mica material.