Auxiliary heat dissipation device for plastic mold

Abstract

The utility model belongs to the technical field of plastic molds, and particularly discloses an auxiliary heat dissipation device for a plastic mold, which comprises a mold table, a mold cavity is arranged in the mold table, a circulating pipe is wound on the outer surface of the mold cavity, air holes are formed in the outer surface of the circulating pipe, a fan is fixedly mounted on the outer surface of the mold table, and a cooling fan is fixedly mounted on the outer surface of the mold table. And the output end of the draught fan fixedly communicates with the top end of a circulating pipe, an exhaust pipe is arranged at the bottom of the circulating pipe, and a dynamic heat dissipation mechanism used for improving the heat dissipation effect is arranged on the mold table. According to the auxiliary heat dissipation device for the plastic mold, the draught fan is started to continuously convey airflow to the circulating pipe, the airflow can be exhausted from the air holes in the surface of the circulating pipe, and the airflow makes contact with the outer surface of the mold cavity, so that heat conduction is accelerated, the heat dissipation surface area can be effectively increased in cooperation with the dynamic heat dissipation mechanism, and larger surface heat supply transfer is provided; the heat dissipation efficiency can be improved, and meanwhile heat dissipation is more uniform.

Description

Technical Field

[0001] The present application relates to the technical field of plastic molds, and in particular to an auxiliary heat dissipation device for plastic molds. Background Art

[0002] A plastic mold is the abbreviation of a combined mold used in processes such as compression molding and extrusion molding. During the use of a plastic mold, due to its own material, it is necessary to avoid the mold temperature being too high, so a heat dissipation device is needed to assist in the heat dissipation of the plastic mold.

[0003] At present, some plastic molds use ventilation to dissipate heat. Ventilation heat dissipation mainly relies on air circulation, and the thermal conductivity of air is relatively low. Especially in the process of dealing with high temperature or high heat generation, ventilation heat dissipation has certain limitations in heat dissipation efficiency, and it is easy to cause local uneven heat dissipation in different areas of the mold. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings of the background technology and to provide an auxiliary heat dissipation device for a plastic mold to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides an auxiliary heat dissipation device for a plastic mold, comprising a mold table, a mold cavity is arranged inside the mold table, a circulation pipe is arranged around the outer surface of the mold cavity, the outer surface of the circulation pipe is provided with air holes, a fan is fixedly installed on the outer surface of the mold table, the output end of the fan is fixedly connected to the top end of the circulation pipe, an exhaust pipe is arranged at the bottom of the circulation pipe, and a dynamic heat dissipation mechanism for improving the heat dissipation effect is arranged on the mold table.

[0006] Preferably, the dynamic heat dissipation mechanism includes a screw fixedly connected to the outer surface of the mold table, and the end of the screw away from the mold table is fixedly connected to a sliding rod. The dynamic heat dissipation mechanism can guide the hot air flow in the inner cavity of the mold table to the outside for dissipation, and can shake the external heat sink so that the accumulated dust can fall more easily under the action of the airflow.

[0007] Preferably, one end of the slide rod away from the screw is fixedly connected to an end stopper, and a spring is provided on the movable sleeve of the outer surface of the slide rod.

[0008] Preferably, a sliding sleeve is provided on the outer surface of the sliding rod with a sliding ring frame, and a heat sink is fixedly connected to the outer surface of the sliding ring frame.

[0009] Preferably, an inner heat sink is provided at one end of the heat sink close to the screw, and an outer heat sink is provided at one side of the heat sink close to the end stopper. The inner heat sink is in the inner cavity of the mold table, while the outer heat sink is in the outside, and the two groups of heat sinks are connected through the heat sink.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The plastic mold uses an auxiliary heat dissipation device. Turn on the fan to continuously supply air to the circulation pipe. The airflow will be discharged from the air holes on the surface of the circulation pipe. The airflow contacts the outer surface of the mold cavity, thereby accelerating the heat conduction. The dynamic heat dissipation mechanism can effectively increase the heat dissipation surface area, provide a larger surface for heat transfer, help improve the heat dissipation efficiency, and dissipate the heat more evenly.

[0012] 2. The auxiliary heat dissipation device for the plastic mold can improve the heat transfer efficiency by elastic movement of the heat sink, reduce the thermal stress in the molding chamber of the elliptical mold, reduce the deformation and loss caused by thermal expansion, and with the help of the internal airflow, the dust can be blown off more easily, thereby reducing the influence of dust accumulation on the heat sink on the heat dissipation effect, and improving the practicality and functionality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of this application;

[0014] Figure 2 This is a schematic diagram of the internal structure of the mold table for this application;

[0015] Figure 3 This is a schematic diagram of the surface structure of the heat sink of this application;

[0016] Figure 4 This is a schematic diagram of the surface structure of the slip ring frame of this application.

[0017] Among them: 1. mold table; 2. mold chamber; 3. circulation pipe; 4. air hole; 5. fan; 6. exhaust pipe; 7. screw; 8. slide rod; 9. end stopper; 10. spring; 11. slip ring frame; 12. heat sink; 13. inner heat sink; 14. outer heat sink. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] See also Figure 1-4An auxiliary heat dissipation device for a plastic mold comprises a mold table 1, a mold cavity 2 is arranged inside the mold table 1, a circulation pipe 3 is arranged around the outer surface of the mold cavity 2, and an air hole 4 is opened on the outer surface of the circulation pipe 3. A fan 5 is fixedly installed on the outer surface of the mold table 1, and the output end of the fan 5 is fixedly connected to the top of the circulation pipe 3. An exhaust pipe 6 is arranged at the bottom of the circulation pipe 3. A dynamic heat dissipation mechanism for improving the heat dissipation effect is arranged on the mold table 1.

[0020] Through the above technical solution, when the device is in use, the product is formed in the mold cavity 2, and the air supply through the fan 5 can make the air flow be discharged from each air hole 4 through the circulation pipe 3, so as to evenly and effectively dissipate the heat of the mold cavity 2. The dynamic heat dissipation mechanism can improve the heat dissipation effect, and when dust accumulates on the external heat sink 14, the dust can be blown off under the action of the air flow to avoid affecting the heat dissipation effect of the heat sink.

[0021] Specifically, the dynamic heat dissipation mechanism includes a screw 7 fixedly connected to the outer surface of the mold table 1 , and one end of the screw 7 away from the mold table 1 is fixedly connected to a slide rod 8 .

[0022] Through the above technical solution, the screws 7 are screwed and fixed on the outer surface of the mold table 1, and the heat sink can be indirectly installed. There are four groups of screws 7, which are respectively designed at four corners close to the heat sink 12.

[0023] Specifically, an end of the slide rod 8 away from the screw 7 is fixedly connected to an end stopper 9 , and a spring 10 is movably sleeved on the outer surface of the slide rod 8 .

[0024] Through the above technical solution, the end stopper 9 provides support for the spring 10 and prevents the heat sink 12 from being separated from the slide rod 8, thereby playing a guiding role.

[0025] Specifically, a sliding ring frame 11 is slidingly sleeved on the outer surface of the sliding rod 8 , and a heat sink 12 is fixedly connected to the outer surface of the sliding ring frame 11 .

[0026] Through the above technical solution, the sliding ring frame 11 drives the heat sink 12 to move synchronously during the sliding process, and at the same time compresses the spring 10.

[0027] Specifically, an inner heat sink 13 is provided at one end of the heat sink 12 close to the screw 7 , and an outer heat sink 14 is provided at one side of the heat sink 12 close to the end stopper 9 .

[0028] Through the above technical solution, the heat in the inner cavity of the mold table 1 is transferred to the heat dissipation plate 12 through the inner heat sink 13, and finally the heat is conducted to the outer heat sink 14 and dissipated to the outside.

[0029] Working principle: When the device is in use, the product is formed in the mold cavity 2. During this process, the mold cavity 2 will generate a lot of heat, and most of the heat will remain in the inner cavity of the mold table 1. At this time, in order to quickly dissipate heat, the fan 5 can be turned on to continuously supply air to the circulation pipe 3. The airflow will be discharged from the air holes 4 on the surface of the circulation pipe 3 and contact the outer surface of the mold cavity 2, thereby accelerating the conduction of heat. The airflow in the circulation pipe 3 wrapped around the outer surface of the mold cavity 2 will also be heat-conducted and finally discharged from the exhaust pipe 6. The heat in the inner cavity of the mold table 1 will be conducted to the heat sink 12 through the inner heat sink 13, and finally transferred to the outer heat sink 14 to be dissipated to the outside. In this process, the heat dissipation is effectively accelerated. The design of the heat sink can effectively increase the heat dissipation surface The heat sink 12 can be elastically moved, that is, the heat sink 12 can be pushed outward to make the slip ring frame 11 slide outward along the surface of the slide rod 8, thereby linking the heat sink to move outward appropriately, and compressing the spring 10 at the same time. The elastic movement of the heat sink can improve the heat transfer efficiency, reduce the thermal stress in the elliptical mold molding chamber, and reduce the deformation and loss caused by thermal expansion. When dust accumulates on the heat sink during daily use, the dust can be blown off more easily by elastically moving the heat sink with the help of the internal airflow, thereby reducing the influence of dust accumulation on the heat sink on the heat dissipation effect, and improving the practicability and functionality of the device.

[0030] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An auxiliary heat dissipation device for a plastic mold, comprising a mold table (1), Features: The mold platform (1) is provided with a mold cavity (2) inside, a circulation pipe (3) is arranged around the outer surface of the mold cavity (2), the outer surface of the circulation pipe (3) is provided with air holes (4), a fan (5) is fixedly installed on the outer surface of the mold platform (1), the output end of the fan (5) is fixedly connected to the top end of the circulation pipe (3), an exhaust pipe (6) is arranged at the bottom of the circulation pipe (3), and a dynamic heat dissipation mechanism for improving the heat dissipation effect is arranged on the mold platform (1).

2. An auxiliary heat dissipation device for a plastic mold according to claim 1, Features: The dynamic heat dissipation mechanism comprises a screw (7) fixedly connected to the outer surface of the mold platform (1), and one end of the screw (7) away from the mold platform (1) is fixedly connected to a sliding rod (8).

3. The auxiliary heat dissipation device for plastic mold according to claim 2, Features: One end of the slide rod (8) away from the screw (7) is fixedly connected to an end stopper (9), and a spring (10) is movably sleeved on the outer surface of the slide rod (8).

4. The auxiliary heat dissipation device for plastic mold according to claim 3, Features: The outer surface of the sliding rod (8) is slidably sleeved with a slip ring frame (11), and the outer surface of the slip ring frame (11) is fixedly connected with a heat sink (12).

5. The auxiliary heat dissipation device for plastic mold according to claim 4, Features: An inner heat sink (13) is provided at one end of the heat sink (12) close to the screw (7), and an outer heat sink (14) is provided at one side of the heat sink (12) close to the end stopper (9).

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