Cooling device for nut forming die

By designing a cooling device on the nut forming mold, and using the cooling module and heat conduction structure for local compensation cooling, the problem of difficult demolding during the nut forming process is solved, and the nut is fully cooled and demolded smoothly.

CN223573679UActive Publication Date: 2025-11-21JIAXING CHUNYOU PRECISION MOULD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422983057.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-21
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

During the injection molding process of plastic nuts, the molded column is difficult to exit smoothly, resulting in poor molding of the threads on the inner hole and outer wall of the nut. Existing cooling devices cannot effectively solve this problem.

Method used

A cooling device for nut forming molds was designed, including a cooling module body, a high-temperature resistant thermally conductive pad, a radiator, and a coolant circulation channel. Through local compensation cooling, a combination structure of thermally conductive protrusions and grooves is used to achieve flexible installation and ensure sufficient local cooling of the mold.

Benefits of technology

It achieves sufficient cooling of the nut-shaped product, ensuring smooth demolding. The device is flexible and convenient to install, with complete functions and strong practicality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223573679U_ABST
    Figure CN223573679U_ABST
Patent Text Reader

Abstract

The utility model discloses a cooling device for a nut forming die, which comprises a cooling module body mounted on the outer wall surface of the die, a high-temperature-resistant heat-conducting pad is arranged at one end of the cooling module body facing the die, and a radiator is arranged at one end of the cooling module body back to the die. A cooling liquid circulating flow channel is arranged in the cooling module body, a liquid inlet and a liquid outlet which are connected with the cooling liquid circulating flow channel are formed in the cooling module body, pipe joints are arranged on the liquid outlet and the liquid inlet, a lug seat for connection is arranged on the side surface of the cooling module body, and a screw through hole is formed in the lug seat. The cooling device has the characteristics of local compensation cooling and flexible and convenient installation, and is complete in overall function and high in practicability.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and more specifically, it relates to a cooling device for a nut forming mold. Background Technology

[0002] Plastic nuts are typically manufactured using injection molding. However, unlike traditional plastic parts, the nut's inner hole has threads, so the central molding post of the nut needs to have threads on its outer wall. To ensure the smooth removal of this threaded post, the injection-molded nut needs sufficient cooling; otherwise, the molding of the threads in the nut's inner hole and the smooth removal of the threaded post will be hindered. Therefore, this invention proposes a cooling device for nut molding dies. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cooling device for nut forming molds. This cooling device has the characteristics of local compensation cooling and flexible and convenient installation.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The present utility model relates to a cooling device for a nut forming mold, comprising a cooling module body attached to the outer wall of the mold, wherein a high-temperature resistant heat-conducting pad is provided at the end of the cooling module body facing the mold, and a heat sink is provided at the end of the cooling module body facing away from the mold. A coolant circulation channel is arranged inside the cooling module body, and an inlet and an outlet connected to the coolant circulation channel are provided on the cooling module body. Both the outlet and the inlet are provided with pipe joints. A lug for connection is provided on the side of the cooling module body, and a screw through hole is provided on the lug.

[0005] The present invention is further configured such that: a heat-conducting protrusion is arranged at one end of the high-temperature heat-conducting pad facing the cooling module body, and a heat-conducting groove matching the heat-conducting protrusion is provided at one end of the cooling module body facing the high-temperature heat-conducting pad, and the heat-conducting protrusion is embedded in the heat-conducting groove.

[0006] The present invention is further configured such that the end of the heat-conducting protrusion that is not connected to the high-temperature heat-conducting pad has a limiting ball head.

[0007] The present invention is further configured such that the heat-conducting protrusion and the high-temperature heat-conducting pad are integrated.

[0008] The present invention is further configured such that: the high-temperature resistant thermal conductive pad is a mold heat insulation plate composed of glass fiber material and high heat-resistant material.

[0009] The present invention is further configured such that: the coolant circulation channel includes a first C-shaped channel and a second C-shaped channel in a semi-circular shape, the second C-shaped channel and the first C-shaped channel are arranged concentrically, the first C-shaped channel and the second C-shaped channel are oriented in opposite directions, a first transition channel is connected between the inlet and one end of the first C-shaped channel, a second transition channel is connected between the other end of the first C-shaped channel and one end of the second C-shaped channel, and a third transition channel is connected between the other end of the second C-shaped channel and the outlet.

[0010] The present invention is further configured such that: the liquid inlet is located on the side of the cooling module body, and the liquid outlet passes through the radiator axially.

[0011] In summary, the present invention has the following beneficial effects: The cooling device for nut forming molds involved in the present invention, by adding an unspecified number of cooling devices to the outer wall of the mold, can compensate for the cooling of the molded parts that are not cooled enough, so that the molded product is fully cooled and demolded smoothly. The device is flexible and convenient to install, has complete functions, and is highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram illustrating the structure of the coolant circulation channel of this utility model;

[0014] Figure 3 This is a schematic diagram illustrating the structure of the radiator according to this utility model. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0016] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0017] Example 1

[0018] See Figures 1 to 3As shown, the cooling device for a nut forming mold involved in this embodiment includes a cooling module body 1 attached to the outer wall of the mold. A high-temperature resistant heat-conducting pad 2 is provided at the end of the cooling module body 1 facing the mold, and a heat sink 3 is provided at the end of the cooling module body 1 facing away from the mold. A coolant circulation channel 4 is arranged inside the cooling module body 1. An inlet 5 and an outlet 6 connected to the coolant circulation channel are provided on the cooling module body 1. Both the outlet 6 and the inlet 5 are provided with pipe joints 7. A lug 8 for connection is provided on the side of the cooling module body 1, and a screw through hole 9 is provided on the lug 8.

[0019] Furthermore, the high-temperature resistant thermal pad 2 is a mold insulation plate composed of glass fiber material and high heat-resistant material.

[0020] Furthermore, the coolant circulation channel 4 includes a semi-circular first C-shaped channel 401 and a second C-shaped channel 402. The second C-shaped channel 402 is concentrically arranged with the first C-shaped channel 401. The first C-shaped channel 401 and the second C-shaped channel 402 face opposite directions. A first transition channel 403 is connected between the inlet and one end of the first C-shaped channel 401. A second transition channel 404 is connected between the other end of the first C-shaped channel 401 and one end of the second C-shaped channel 402. A third transition channel 405 is connected between the other end of the second C-shaped channel 402 and the outlet.

[0021] Furthermore, the liquid inlet 5 is located on the side of the cooling module body 1, and the liquid outlet 6 penetrates the radiator 3 axially.

[0022] In this embodiment, the device is installed on a location in the mold where local cooling is insufficient by partial mounting. Through heat transfer, local cooling compensation can be provided.

[0023] The cooling method is as follows: heat is transferred from the mold to the high-temperature resistant thermal pad 2, which then transfers the heat to the cooling module body 1. Coolant is pumped into the coolant circulation channel 4 to continuously remove heat. The added radiator 3 also enhances heat dissipation.

[0024] The coolant circulation flow direction is as follows: it enters from the inlet 5, is guided by the first transition channel 403, flows into the first C-shaped channel 401, is guided by the second transition channel 404, flows into the second C-shaped channel 402, flows out from the outlet 6 through the third transition channel 405, and with the help of pipes and pumps, it can realize the circulation pumping function.

[0025] Example 2

[0026] See Figures 1 to 3As shown, the cooling device for a nut forming mold involved in this embodiment is further configured based on embodiment 1, wherein the high-temperature heat-conducting pad 2 has a heat-conducting protrusion 10 arranged at one end facing the cooling module body, and the cooling module body 1 has a heat-conducting groove 11 matching the heat-conducting protrusion at one end facing the high-temperature heat-conducting pad, and the heat-conducting protrusion 10 is embedded in the heat-conducting groove 11.

[0027] Furthermore, the end of the thermally conductive protrusion 10 that is not connected to the high-temperature thermally conductive pad has a limiting ball head (unmarked).

[0028] Furthermore, the thermally conductive protrusion 10 is integrated with the high-temperature resistant thermally conductive pad 2.

[0029] In this embodiment, the combination of the thermally conductive protrusion 10, the limiting ball head, and the thermally conductive groove 11 allows the high-temperature resistant thermally conductive pad 2 to be attached to the cooling module body 1 without the need for adhesive, thus preventing separation under high temperature conditions.

[0030] The cooling device for nut forming molds involved in this utility model can compensate for insufficient cooling in certain areas of the mold by adding an unspecified number of cooling devices to the outer wall of the mold, so that the formed product is fully cooled and demolded smoothly. The device is flexible and convenient to install, has complete functions, and is highly practical.

[0031] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0032] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A cooling device for a nut forming mold, comprising a cooling module body attached to the outer wall of the mold, characterized in that: The cooling module body has a high-temperature resistant heat-conducting pad at the end facing the mold and a radiator at the end facing away from the mold. A coolant circulation channel is arranged inside the cooling module body. The cooling module body has an inlet and an outlet connected to the coolant circulation channel. Both the outlet and the inlet are equipped with pipe joints. The side of the cooling module body has lugs for connection, and screw holes are opened on the lugs.

2. The cooling device for the nut forming die according to claim 1, characterized in that: The high-temperature resistant thermal pad has a thermally conductive protrusion on one end facing the cooling module body, and the cooling module body has a thermally conductive groove matching the thermally conductive protrusion on the other end facing the high-temperature resistant thermal pad, with the thermally conductive protrusion embedded in the thermally conductive groove.

3. The cooling device for the nut forming die according to claim 2, characterized in that: The end of the thermally conductive protrusion that is not connected to the high-temperature resistant thermally conductive pad has a limiting ball head.

4. The cooling device for the nut forming die according to claim 3, characterized in that: The thermally conductive protrusion is integrated with the high-temperature resistant thermally conductive pad.

5. The cooling device for a nut forming die according to any one of claims 1-4, characterized in that: The high-temperature resistant thermal conductive pad is a mold insulation plate made of glass fiber material and high heat-resistant material.

6. The cooling device for a nut forming die according to claim 1, characterized in that: The coolant circulation channel includes a first C-shaped channel and a second C-shaped channel that are semi-circular. The second C-shaped channel is arranged concentrically with the first C-shaped channel. The first C-shaped channel and the second C-shaped channel face opposite directions. A first transition channel connects the inlet to one end of the first C-shaped channel. A second transition channel connects the other end of the first C-shaped channel to one end of the second C-shaped channel. A third transition channel connects the other end of the second C-shaped channel to the outlet.

7. The cooling device for a nut forming die according to claim 6, characterized in that: The liquid inlet is located on the side of the cooling module body, and the liquid outlet passes through the radiator axially.