Rapid cooling structure of cosmetic plastic mold

By introducing an electric telescopic rod and water pump system into cosmetic plastic molds, precise control of the coolant is achieved, solving the problem of long air-cooling time, improving product quality and production efficiency, and reducing costs.

CN223971968UActive Publication Date: 2026-03-06ZHONGSHAN MILENI PRECISION PLASTIC PRODUCTS CO LTD
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Patent Information

Application Number
CN202520431544.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-03-06
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

The existing air-cooling method used for cosmetic plastic molds results in excessively long cooling times, affecting production efficiency and potentially causing product deformation or quality degradation.

Method used

A rapid cooling structure is adopted, which includes a lower mold, an upper mold, an electric telescopic rod, a water pump, and a cooler. By precisely controlling the flow rate and temperature of the coolant, rapid heat absorption inside the mold is achieved.

Benefits of technology

It improves product molding efficiency and quality, reduces product defects caused by uneven cooling, reduces energy waste and operating costs, and adapts to production needs of different scales.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a quick cooling structure of a cosmetic plastic mould, which relates to the technical field of plastic moulds and comprises a lower mould, a first water storage cavity is arranged in the lower mould, two mounting holes are arranged at the top of the lower mould, and first fixing rings are fixedly inserted into the inner surface walls of the two mounting holes. According to the utility model, the accurate control of the electric telescopic rod enables the opening and closing of the mold to be quicker, the production cycle is shortened, the design of the hardening pipeline and the fixing ring enables cooling liquid to freely circulate between the water storage cavities of the two molds, the cooling efficiency is effectively improved, the existence of the sealing ring effectively prevents the cooling liquid from leaking in the flowing process, and the service life of the mold is prolonged. The stability and safety of the cooling system are guaranteed, the efficient cooling system is beneficial to rapidly absorbing heat in the mold, the forming efficiency and quality of products are improved, and product defects caused by uneven cooling are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a rapid cooling structure for cosmetic plastic molds. Background Technology

[0002] Plastic molds are a type of combination mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the punch, die, and auxiliary molding system can produce a series of plastic parts of different shapes and sizes, and they are widely used in the production of plastic products.

[0003] Currently, many cosmetic plastic molds use air cooling as the cooling method. Cosmetic plastic products need to be cooled quickly after molding to solidify their shape and maintain their structural stability. However, air cooling is limited by the efficiency of gas heat transfer and cannot quickly remove the heat from the mold. Therefore, air cooling may lead to excessively long cooling times, which not only affects production efficiency but may also cause unnecessary deformation or quality degradation due to the products remaining in the mold for too long. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the above-mentioned equipment cannot quickly reduce the temperature of the mold due to air cooling, resulting in a decline in product quality. Therefore, this invention proposes a rapid cooling structure for cosmetic plastic molds.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rapid cooling structure for a cosmetic plastic mold, comprising a lower mold, wherein a water storage cavity is provided inside the lower mold, two mounting holes are provided on the top of the lower mold, a fixing ring is fixedly inserted into the inner wall of each of the two mounting holes, a spring is fixedly installed at the bottom of each of the two fixing rings, a locking block is fixedly installed at the bottom of each of the two springs, a second fixing ring is fixedly inserted into the inner wall of each of the two mounting holes, and the top of each locking block is in contact with the bottom of the second fixing ring, a set of ear blocks is fixedly installed on the outer wall of the lower mold, an electric telescopic rod is fixedly installed on the top of each set of ear blocks, and an ear block is fixedly installed on the telescopic end of each set of electric telescopic rods.

[0006] Preferably, an upper mold is fixedly installed between the outer walls of a set of ear blocks two, and the output end of the lower mold is fixedly connected to a pipe one.

[0007] Preferably, the output end of the first pipe is fixedly connected to a water pump, and the output end of the water pump is fixedly connected to a second pipe.

[0008] Preferably, the output end of the second pipe is fixedly connected to a water tank, and one side of the outer wall of the water tank is fixedly connected to one side of the outer wall of the lower mold, while the top of the water tank is fixedly connected to the bottom of the water pump, and a cooler is fixedly inserted inside the water tank.

[0009] Preferably, the output end of the water tank is fixedly connected to a pipe three, and the output end of the pipe three is fixedly connected to the input end of the lower mold, and the upper mold has a water storage cavity two inside.

[0010] Preferably, the top of the upper mold is fixedly connected to a feed inlet, and the bottom of the upper mold is fixedly connected to two hardened pipes.

[0011] Preferably, a sealing ring is fixedly fitted on the outer wall of each of the two hardened pipes, and a top block is fixedly installed on the inner wall of each of the two hardened pipes.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the precise control of the electric telescopic rod makes the mold opening and closing faster, shortening the production cycle. The design of the hardened pipe and the fixing ring allows the coolant to flow freely between the water storage chambers of the two molds, effectively improving the cooling efficiency. The presence of the sealing ring effectively prevents the coolant from leaking during the flow process, ensuring the stability and safety of the cooling system. The efficient cooling system helps to quickly absorb the heat in the mold, improve the molding efficiency and quality of the product, and reduce product defects caused by uneven cooling.

[0014] 2. In this utility model, by precisely controlling the flow rate and temperature of cooling water, unnecessary energy waste is avoided, the overall operating cost is reduced, and it can also adapt to cosmetic plastic molds of different sizes and types to meet different production needs. Attached Figure Description

[0015] Figure 1 This utility model provides a front view perspective of a rapid cooling structure for a cosmetic plastic mold.

[0016] Figure 2 This utility model provides a partial structural cross-sectional view of a rapid cooling structure for cosmetic plastic molds.

[0017] Figure 3 This utility model presents a partial three-dimensional view of a rapid cooling structure for cosmetic plastic molds.

[0018] Figure 4 A top perspective view of a rapid cooling structure for a cosmetic plastic mold is provided for this utility model.

[0019] Figure 5 A bottom view of a rapid cooling structure for cosmetic plastic molds proposed in this utility model;

[0020] Figure 6This utility model provides an enlarged view of structure A in a rapid cooling structure for cosmetic plastic molds.

[0021] Legend:

[0022] 1. Lower mold; 2. Water storage chamber one; 3. Mounting hole; 4. Fixing ring one; 5. Spring; 6. Clamping block; 7. Fixing ring two; 8. Ear block one; 9. Electric telescopic rod; 10. Ear block two; 11. Upper mold; 12. Pipe one; 13. Water pump; 14. Pipe two; 15. Water tank; 16. Cooler; 17. Pipe three; 18. Water storage chamber two; 19. Feed inlet; 20. Hardened pipe; 21. Sealing ring; 22. Top block. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, such as Figures 1-6 As shown, this utility model provides a rapid cooling structure for a cosmetic plastic mold, including a lower mold 1. The lower mold 1 has a water storage cavity 2 inside. Two mounting holes 3 are opened on the top of the lower mold 1. A fixing ring 4 is fixedly inserted into the inner wall of each of the two mounting holes 3. A spring 5 is fixedly installed at the bottom of each of the two fixing rings 4. A locking block 6 is fixedly installed at the bottom of each of the two springs 5. A second fixing ring 7 is fixedly inserted into the inner wall of each of the two mounting holes 3, and the top of each locking block 6 contacts the bottom of the second fixing ring 7. The outer wall of the lower mold 1 is fixedly fitted with... There is a set of ear blocks 1 8, and an electric telescopic rod 9 is fixedly installed on the top of each set of ear blocks 1 8. An ear block 2 10 is fixedly installed on the telescopic end of each set of electric telescopic rods 9. An upper mold 11 is fixedly installed between the outer walls of the set of ear blocks 2 10. A water storage cavity 2 18 is opened inside the upper mold 11. A feed inlet 19 is fixedly connected to the top of the upper mold 11. Two hardened pipes 20 are fixedly connected to the bottom of the upper mold 11. A sealing ring 21 is fixedly fitted on the outer wall of each of the two hardened pipes 20. A top block 22 is fixedly installed on the inner wall of each of the two hardened pipes 20.

[0026] The effect achieved by the entire embodiment 1 is that when the mold is needed, the electric telescopic rod 9 begins to retract, driving the top ear block 10 to descend, thereby driving the upper mold 11 connected to the ear block 10 to descend together and insert into the interior of the lower mold 1. At this time, the hardened pipe 20 below the upper mold 11 descends together and is inserted into the mounting hole 3 together with the sealing ring 21 on the outer wall. At this time, the top block 22 inside the hardened pipe 20 begins to insert into the fixing ring 4. When it contacts the locking block 6, it pushes the locking block 6 downward, thereby stretching the spring 5 and separating it from the fixing ring 7, which facilitates the flow of coolant between the water storage chamber 1 2 and the water storage chamber 2 18 of the two molds. The sealing ring 21 can prevent the coolant from leaking during the flow. Then the raw material enters the interior of the two molds through the feed port 19 and is formed by extrusion. At this time, the coolant can absorb heat, which helps to improve the product forming efficiency and quality.

[0027] Example 2, as Figures 2-6 As shown, the output end of the lower mold 1 is fixedly connected to pipe 12, the output end of pipe 12 is fixedly connected to water pump 13, the output end of water pump 13 is fixedly connected to pipe 2 14, the output end of pipe 2 14 is fixedly connected to water tank 15, and one side of the outer wall of water tank 15 is fixedly connected to one side of the outer wall of lower mold 1, while the top of water tank 15 is fixedly connected to the bottom of water pump 13. A cooler 16 is fixedly inserted inside water tank 15, the output end of water tank 15 is fixedly connected to pipe 3 17, and the output end of pipe 3 17 is fixedly connected to the input end of lower mold 1. A water storage cavity 2 18 is opened inside the upper mold 11.

[0028] The overall effect of embodiment 2 is that after the water pump 13 is started, the water inside the water tank 15 will be transported inside the two molds through pipe 12, pipe 2 14 and pipe 3 17. The water pump 13 can adjust the flow rate and temperature of the cooling water to achieve precise control of the mold temperature, which further improves the product quality. At the same time, the cooler 16 can effectively transfer the heat in the cooling water, so that the cooling water maintains a low temperature during the circulation process, thereby improving the cooling efficiency. By recycling the cooling water, the amount of fresh water used can be significantly reduced, thereby saving water resources and reducing the overall operating cost.

[0029] Working principle: When the cosmetic plastic mold is needed, the electric telescopic rod 9 starts and retracts. This action causes the ear block 10 connected to its top to descend synchronously. As the ear block 10 descends, the upper mold 11, which is closely connected to it, also descends and is precisely inserted into the lower mold 1. At the same time, the hardened pipe 20 below the upper mold 11 and its outer sealing ring 21 descend together and are smoothly inserted into the mounting hole 3. During the descent of the hardened pipe 20, the top block 22 inside it gradually inserts into the fixing ring 4. When the top block 22 contacts the locking block 6, it pushes it downward. This action stretches the spring 5 and separates the locking block 6 from the fixing ring 7. This design cleverly realizes the free flow of coolant between the water storage chamber 12 and the water storage chamber 28 of the two molds. The presence of the sealing ring 21 effectively prevents leakage of the coolant during the flow process, ensuring the smooth progress of the cooling process. Next, the raw material is injected into the interior of the two molds through the feed port 19, and the initial production of the product is completed through the extrusion molding process. During this process, the coolant absorbs a large amount of heat, which helps to improve the molding efficiency and quality of the product. At the same time, the water pump 13 also starts to work, which transports the water in the water tank 15 through the pipes 12, 14 and 17 into the interior of the two molds. The water pump 13 not only has a strong conveying capacity, but can also adjust the flow rate and temperature of the cooling water according to actual needs, thereby achieving precise control of the mold temperature. The cooler 16 can effectively transfer the heat in the cooling water, so that the cooling water always maintains a low temperature during the circulation process.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rapid cooling structure of a cosmetic plastic mold comprising a lower mold (1), characterized in that: The inside of the lower mold (1) is provided with a water storage cavity one (2), the top of the lower mold (1) is provided with two mounting holes (3), the inner surface wall of two mounting holes (3) is fixedly provided with a fixed ring one (4), the bottom of two fixed ring one (4) is fixedly installed with a spring (5), the bottom of two spring (5) is fixedly installed with a clamping block (6), the inner surface wall of two mounting holes (3) is fixedly provided with a fixed ring two (7), and the top of two clamping blocks (6) is in contact with the bottom of the fixed ring two (7), a group of ear blocks one (8) is fixedly installed on the outer surface wall of the lower mold (1), a group of ear blocks one (8) is fixedly installed on the top of the electric telescopic rod (9), a group of ear blocks two (10) is fixedly installed on the telescopic end of the electric telescopic rod (9).

2. The rapid cooling structure of a cosmetic plastic mold according to claim 1, wherein: A group of ear blocks two (10) is fixedly installed between the outer surface wall, and the upper mold (11) is fixedly installed between the outer surface wall.

3. The rapid cooling structure of a cosmetic plastic mold according to claim 2, characterized in that: The output end of the pipeline one (12) is fixedly communicated with the water pump (13), and the output end of the water pump (13) is fixedly communicated with the pipeline two (14).

4. The rapid cooling structure of a cosmetic plastic mold according to claim 3, wherein: The output end of the pipeline two (14) is fixedly communicated with the water tank (15), and the outer wall of the water tank (15) is fixedly connected with the outer wall of the lower mold (1), and the top of the water tank (15) is fixedly connected with the bottom of the water pump (13), and the inside of the water tank (15) is fixedly provided with a cooler (16).

5. The rapid cooling structure of a cosmetic plastic mold according to claim 4, wherein: The output end of the water tank (15) is fixedly communicated with the pipeline three (17), and the output end of the pipeline three (17) is fixedly communicated with the input end of the lower mold (1), and the inside of the upper mold (11) is provided with a water storage cavity two (18).

6. The rapid cooling structure of a cosmetic plastic mold according to claim 5, wherein: The top of the upper mold (11) is fixedly communicated with the feeding port (19), and the bottom of the upper mold (11) is fixedly communicated with two hardening pipelines (20).

7. The rapid cooling structure of a cosmetic plastic mold according to claim 6, wherein: The outer surface wall of two hardening pipelines (20) is fixedly provided with a sealing ring (21), and the inner surface wall of two hardening pipelines (20) is fixedly installed with a top block (22).