Die structure capable of reducing runner waste

By setting up a mold structure with a hot runner and a heating pipeline in the injection mold, the problem of runner waste caused by an excessively long cold runner is solved, achieving the effect of reducing waste generation and lowering costs.

CN223354793UActive Publication Date: 2025-09-19DONGGUAN XINHUISHENG PRECISION IND CO LTD
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Patent Information

Application Number
CN202422117922.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-09-19
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The existing injection mold structure design is unreasonable, resulting in an excessively long cold runner, increased runner waste generation, and increased material usage and waste disposal costs.

Method used

A mold structure including a gate plate, a runner plate, a hot runner module and a hot nozzle block is designed. By setting a hot runner and a heating pipeline between the runner plate and the hot nozzle block, a longer hot runner is achieved to shorten the cold runner length, maintain a constant hot runner temperature, and reduce waste generation.

Benefits of technology

By shortening the cold runner length and keeping the hot runner temperature constant, the generation of runner waste can be reduced, the molding quality can be improved, and the production cost can be reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a mould structure capable of reducing runner waste, which comprises a sprue plate, a sprue, a runner plate and a plurality of hot runner modules, and each hot runner module comprises a plurality of hot runners arranged in parallel and a hot nozzle pressing block fixedly connected to the bottom of the runner plate. The hot runner is arranged between the runner plate and the hot nozzle pressing block in a penetrating mode, the top end of the hot runner is communicated with the sprue through the sprue plate, the bottom end of the hot runner is connected with a cold runner, a heat supply pipeline is arranged between the runner plate and the hot nozzle pressing block, and a pipeline inlet and a pipeline outlet are formed in the two side faces of the runner plate respectively. The pipeline inlet and the pipeline outlet are connected with the two ends of the heat supply pipeline respectively, a long hot runner can be used, the length of the cold runner is shortened, runner waste in the cold runner is reduced, the heat supply pipeline is arranged between the runner plate and the hot nozzle pressing block, the overall temperature of all the hot runners can be kept constant, materials in the hot runners are prevented from being solidified, and the service life of the hot runner is prolonged. And the forming quality is improved, the production cost is reduced, and the device is worthy of popularization and application.
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Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold structure capable of reducing runner waste. Background Art

[0002] Injection molds are widely used in the production of plastic products. Due to unreasonable structural design, existing injection molds can only use short hot runners, resulting in too long cold runners, increasing the generation of runner waste, increasing material usage and waste disposal costs, and increasing the burden on enterprises. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a mold structure which can reduce runner waste, thereby reducing the generation of runner waste and lowering production costs.

[0004] To solve the above technical problems, a mold structure that can reduce runner waste is provided in accordance with the utility model, which includes a gate plate, a gate arranged on the gate plate, a runner plate, and several hot runner modules. The hot runner module includes several hot runners arranged in parallel, and a hot nozzle pressure block fixedly connected to the bottom of the runner plate. The hot runner is arranged between the runner plate and the hot nozzle pressure block and its top is connected to the gate through the gate plate. The bottom end of the hot runner is connected to a cold runner, and a heat supply pipeline is arranged between the runner plate and the hot nozzle pressure block. The two sides of the runner plate are respectively provided with a pipeline inlet and a pipeline outlet, and the pipeline inlet and the pipeline outlet are respectively connected to the two ends of the heat supply pipeline.

[0005] The beneficial effects of the present invention are as follows: the present invention provides a mold structure that can reduce runner waste; by arranging a hot nozzle block at the bottom of the runner plate, the hot runner is arranged between the runner plate and the hot nozzle block; a longer hot runner can be used, thereby shortening the length of the cold runner and reducing the generation of runner waste in the cold runner; by arranging a heating pipeline between the runner plate and the hot nozzle block, the overall temperature of each hot runner can be kept constant, thus avoiding solidification of the material in the hot runner, reducing the generation of waste, improving the molding quality, and reducing the production cost; the structure is simple and worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 The schematic diagram of the appearance structure of the utility model is illustrated.

[0007] Figure 2 The front view of the present invention is illustrated.

[0008] Figure 3 A first cross-sectional view of the present invention is illustrated.

[0009] Figure 4 A second cross-sectional view of the present invention is illustrated.

[0010] Description of the accompanying drawings: gate plate 1, gate 2, runner plate 3, pipeline inlet 30, pipeline outlet 31, hot runner module 4, hot runner 40, hot nozzle block 41, cold runner 5, heating pipeline 6. DETAILED DESCRIPTION

[0011] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments.

[0012] Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present disclosure.

[0013] refer to Figures 1-4 .

[0014] The utility model provides a mold structure that can reduce runner waste, comprising a gate plate 1, a gate 2 arranged on the gate plate 1, a runner plate 3, and several hot runner modules 4. The hot runner module 4 comprises several hot runners 40 arranged in parallel, and a hot nozzle pressing block 41 fixedly connected to the bottom of the runner plate 3. The hot runner 40 is arranged between the runner plate 3 and the hot nozzle pressing block 41, and the top end of the hot runner 40 is connected to the gate 2 through the gate plate 1. The bottom end of the hot runner 40 is connected to the cold runner 5. A heat supply pipeline 6 is arranged between the runner plate 3 and the hot nozzle pressing block 41. A pipeline inlet 30 and a pipeline outlet 31 are respectively provided on both sides of the runner plate 3. The pipeline inlet 30 and the pipeline outlet 31 are respectively connected to the two ends of the heat supply pipeline 6.

[0015] The specific usage principle is that by arranging a hot nozzle block 41 at the bottom of the runner plate 3, the hot runner 40 is arranged between the runner plate 3 and the hot nozzle block 41, and a longer hot runner 40 can be used, thereby shortening the length of the cold runner 5 and reducing the generation of runner waste in the cold runner 5. By arranging a heat supply pipeline 6 between the runner plate 3 and the hot nozzle block 41, the overall temperature of each hot runner 40 can be kept constant, avoiding solidification of the material in the hot runner 40, reducing the generation of waste, improving molding quality, and reducing production costs. It has a simple structure and is worthy of popularization and use.

[0016] The above embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A mold structure capable of reducing runner waste, characterized in that: It includes a gate plate, a gate arranged on the gate plate, a runner plate, and several hot runner modules. The hot runner module includes several hot runners arranged in parallel and a hot nozzle pressure block fixedly connected to the bottom of the runner plate. The hot runner is arranged between the runner plate and the hot nozzle pressure block and its top is connected to the gate through the gate plate. The bottom end of the hot runner is connected to a cold runner. A heat supply pipeline is arranged between the runner plate and the hot nozzle pressure block. A pipeline inlet and a pipeline outlet are respectively provided on both sides of the runner plate. The pipeline inlet and the pipeline outlet are respectively connected to the two ends of the heat supply pipeline.