Pouring structure of hot runner mold

By introducing a combination of heating channels, temperature sensors, and heat pipes into the hot runner mold, the problem of inaccurate temperature control was solved, uniform heat distribution was achieved, product quality and production efficiency were improved, and the service life of the equipment was extended.

CN224103418UActive Publication Date: 2026-04-10SUZHOU SUYU PRECISION MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing hot runner molds cannot achieve precise temperature control, resulting in uneven flow of plastic in the runner, which affects product quality and production efficiency. Molding defects such as incomplete filling, shrinkage cavities, bubbles, and weld lines may occur, and uneven cooling rate affects the appearance quality of the product.

Method used

It employs an independent heating channel and a combination of temperature sensor and heating element, achieving precise temperature control through a thermostat. Combined with a heat pipe that responds quickly to temperature changes, it ensures uniform heat distribution, and uses a fan and heat sink to assist in temperature regulation.

Benefits of technology

It achieves uniform flow of plastic melt in the heating channel, improves product surface gloss and texture quality, reduces shrinkage differences, shortens molding time, reduces scrap rate, and extends equipment life.

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Abstract

The utility model relates to the technical field of hot runner molds, in particular to a pouring structure of a hot runner mold, which comprises a main body, a cooling component is fixedly connected in the main body, and a temperature control component is fixedly connected on the side surface of the main body; by utilizing the independent heating channel, the uniform distribution of heat is realized, local overheating or supercooling is avoided, the temperature can be accurately controlled by utilizing the temperature sensor and the heating element, the uniform flowability of plastic melt in the heating channel can be ensured, the stable temperature is beneficial to uniform cooling of plastic in the cavity, and the product quality is improved. The heat pipe can quickly respond to temperature change and quickly transfer heat from the hot end to the cold end, so that quick cooling is realized, the heat pipe can uniformly distribute the heat on the whole working length, local overheating or supercooling is avoided, the overall temperature uniformity of the equipment is ensured, and the service life of the equipment is prolonged. And the uniform temperature distribution can reduce the thermal stress in the equipment.
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Claims

1. A gating structure of a hot runner mold comprising a main body (1), characterized in that: The inside of the main body (1) is fixedly connected with a temperature adjusting assembly (2), and the side of the main body (1) is fixedly connected with a control assembly (3); The main flow pipeline (101) is provided on the main body (1), the side of the main flow pipeline (101) is fixedly connected with a controller (107), the inside of the main flow pipeline (101) is fixedly connected with a mounting bracket (105), and the inside of the mounting bracket (105) is mounted with a heat pipe (106); The temperature adjusting assembly (2) comprises a heating channel (201), and the side of the heating channel (201) is fixedly connected with a temperature sensor (202) and a heating element (203); The control assembly (3) comprises a temperature controller (301), and the side of the temperature controller (301) is provided with an adjusting key (302).

2. The hot runner mold gating structure of claim 1 wherein, The mounting bracket (105) is provided with four, and the heat pipe (106) is provided with two.

3. The hot runner mold gate structure of claim 1 wherein, The heating channel (201) is provided with two, and the temperature sensor (202) and the heating element (203) are provided with several.

4. The hot runner mold gate structure of claim 1 wherein, The side of the temperature controller (301) is fixedly connected with a working display lamp (303) and a temperature display screen (304), the side of the temperature controller (301) is provided with a control button (305), and the control button (305) is provided with several.

5. The hot runner mold gate structure of claim 1 wherein, The side of the controller (107) is fixedly connected with a touch display screen (108), and the side of the controller (107) is provided with a switch (109).

6. The hot runner mold gating structure of claim 1 wherein, The side of the controller (107) is provided with a physical control key (110), and the physical control key (110) is provided with two.

7. The hot runner mold gating structure of claim 1 wherein, The top of the main flow pipeline (101) is fixedly connected with an insulation plate (103), and the top of the insulation plate (103) is fixedly connected with a pipe body (104).

8. The hot runner mold gate structure of claim 3, wherein, The bottom of the main flow pipeline (101) is fixedly connected with a bottom ring (102), the material of the bottom ring (102) is stainless steel, and the inside of the main flow pipeline (101) is provided with radiating fins and a fan.