A rapid cooling type injection mold structure
By incorporating a cooling chamber and fin structure into the injection mold, combined with ejector pins and springs, the problems of slow cooling speed and inconvenient disassembly of the injection mold are solved, achieving rapid cooling and convenient disassembly, thus improving processing efficiency and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HERUI TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-07
Smart Images

Figure CN224465151U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, and in particular to a rapid cooling injection mold structure for quick demolding. Background Technology
[0002] Molds, as tools for mass production and rapid processing of products, are known as the mother of industry. As a broad category, molds are further subdivided into many different subcategories, including injection molds used for the production and processing of injection molded parts.
[0003] Existing injection molds are inadequate in achieving rapid cooling, and their overall assembly and disassembly flexibility and practicality need to be improved. Utility Model Content
[0004] The purpose of this invention is to provide a fast-cooling injection mold structure that allows for quick demolding, easy assembly and disassembly, convenient maintenance and repair, and efficient cooling, resulting in high processing efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A rapid-cooling injection mold structure for quick demolding includes a lower mold and an upper mold. The lower mold includes a lower mold base, and a first cooling cavity is provided inside the lower mold base. A first molding seat is installed inside the first cooling cavity. Multiple first fins are fixedly connected to the outer surfaces of three adjacent sides of the first molding seat. The upper mold includes an upper mold base, and a second molding seat is fixedly installed on the end face of the upper mold base. A second cooling cavity is provided inside the second molding seat, and multiple second fins are fixedly connected to the inner walls of three adjacent sides of the second cooling cavity.
[0007] By adopting the above technical solution, a large amount of cooling water can pass through the mold, thereby enabling rapid cooling.
[0008] Furthermore, a first liquid guide nozzle is fixedly installed on the symmetrical end face of the lower mold base, and the two first liquid guide nozzles are respectively connected to the two ends of the interior of the first cooling cavity.
[0009] By adopting the above technical solution, it is ensured that the cooling water can smoothly pass through the interior of the first cooling chamber.
[0010] Furthermore, the upper mold base is provided with two flow channels inside, and a second liquid guide nozzle is installed at the port of each of the two flow channels. The other ends of the two flow channels are respectively connected to the two ends of the interior of the second cooling chamber.
[0011] By adopting the above technical solution, the effective flow of cooling water is ensured.
[0012] Furthermore, a sliding hole is provided on the lower surface of the lower mold base, and a push rod passes through the interior of the sliding hole, with a spring sleeved on one end of the push rod.
[0013] By adopting the above technical solution, the position of the push rod is kept stable.
[0014] Furthermore, a lifting hole is provided on the bottom end face of the first molding seat, one end of the push rod passes through the interior of the lifting hole, and the end face of the push rod is flush with the inner wall of the first molding seat.
[0015] By adopting the above technical solution, the stability of product processing is ensured, and the product can be ejected after completion.
[0016] Furthermore, the upper mold base and the second forming base are provided with corresponding air extraction holes and injection holes.
[0017] By adopting the above technical solution, it is ensured that the injection plastic can effectively enter the interior of the mold.
[0018] In summary, the beneficial technical effects of this utility model are as follows:
[0019] This invention provides a second cooling chamber inside the upper mold and a first cooling chamber inside the lower mold. Multiple first fins are fixedly connected to the outer surface of the first molding seat. Therefore, during the entire injection molding process, cooling water can pass through the interiors of both the upper and lower molds simultaneously, thus achieving dual cooling operation. This effectively improves the cooling speed and effect, thereby increasing injection molding efficiency. Furthermore, both the second molding seat in the upper mold and the first molding seat in the lower mold can be flexibly and conveniently disassembled and assembled, greatly improving the maintenance convenience and overall practicality of the mold. Attached Figure Description
[0020] Figure 1 This is a first-view perspective view of the three-dimensional structure of this utility model;
[0021] Figure 2 This is a second perspective view of the three-dimensional structure of this utility model.
[0022] In the diagram: 1. Lower mold; 2. Lower mold base; 3. First cooling chamber; 4. Ejector rod; 5. First liquid guide nozzle; 6. First forming base; 7. First fin; 8. Upper mold; 9. Upper mold base; 10. Second liquid guide nozzle; 11. Second forming base; 12. Second fin; 13. Second cooling chamber; 14. Spring. Detailed Implementation
[0023] The method of this utility model will be further described in detail below with reference to the accompanying drawings.
[0024] Reference Figure 1 , Figure 2A rapid-cooling injection mold structure for quick demolding includes a lower mold 1 and an upper mold 8. The lower mold 1 includes a lower mold base 2, and a first cooling cavity 3 is provided inside the lower mold base 2. A first molding seat 6 is installed inside the first cooling cavity 3. Multiple first fins 7 are fixedly connected to the outer surfaces of three adjacent sides of the first molding seat 6. The upper mold 8 includes an upper mold base 9, and a second molding seat 11 is fixedly installed on the end face of the upper mold base 9. A second cooling cavity 13 is provided inside the second molding seat 11, and multiple second fins 12 are fixedly connected to the inner walls of three adjacent sides of the second cooling cavity 13. A first liquid guide nozzle 5 is fixedly installed on the symmetrical end face of the lower mold base 2. The two first liquid guide nozzles 5 are respectively connected to the two ends of the interior of the first cooling cavity 3. The upper mold base 9 has two flow channels inside, and the ports of the two flow channels are respectively... A second liquid guide nozzle 10 is installed, and the other ends of the two guide channels are respectively connected to the two ends of the interior of the second cooling cavity 13. The upper mold base 9 and the second molding base 11 are provided with corresponding air extraction holes and injection holes. By setting the second cooling cavity 13 inside the upper mold 8 and the first cooling cavity 3 inside the lower mold 1, and fixing multiple first fins 7 on the outer surface of the first molding base 6, cooling water can pass through the interior of the upper mold 8 and the lower mold 1 at the same time during the entire injection molding process, thereby achieving dual cooling operation, effectively improving the cooling speed and cooling effect, and thus improving the injection molding efficiency. At the same time, the second molding base 11 in the upper mold 8 and the first molding base 6 in the lower mold 1 can be flexibly and conveniently disassembled and assembled, greatly improving the maintenance convenience and overall practicality of the mold.
[0025] Reference Figure 1 , Figure 2 A sliding hole is provided on the lower surface of the lower mold base 2, and an ejector rod 4 passes through the interior of the sliding hole. A spring 14 is sleeved on the outside of one end of the ejector rod 4. A lifting hole is provided on the bottom end face of the first molding base 6, and one end of the ejector rod 4 passes through the interior of the lifting hole. The end face of the ejector rod 4 is flush with the inner wall of the first molding base 6. After the workpiece cools and solidifies, the ejector rod 4 can be pushed by the external ejection structure, causing the ejector rod 4 to move axially. At this time, the spring 14 is compressed, and one end of the ejector rod 4 continues to pass through the interior of the first molding base 6. This process can effectively eject the workpiece from the interior of the first molding base 6, realize the ejection operation, facilitate the worker to pick up the material, and ensure that the injection molding operation can be carried out continuously and stably.
[0026] Working principle: When in use, the mold is first installed in the designated position. After installation, the injection molding operation can be performed. During injection, the inside of the mold is first evacuated through the air extraction hole, and then fluid is injected into the mold through the injection hole. Then, cooling water is injected into the first cooling chamber 3 and the second cooling chamber 13 through the external cooling water supply device. Under the temperature conduction and fluid control of the first fin 7 and the second fin 12, a large amount of cooling water can quickly pass through the inside of the upper mold 8 and the lower mold 1, which can achieve rapid cooling operation and improve the molding speed of the injection molded part. After the injection molded part is molded, the upper mold 8 is raised. Then, the external lifting structure pushes one end of the ejector rod 4, so that the ejector rod 4 moves axially. At this time, the spring 14 is compressed, and one end of the ejector rod 4 continues to pass through the inside of the first molding seat 6. This process can effectively push the workpiece out of the inside of the first molding seat 6, realize the ejection operation, and facilitate the staff to pick up the material.
[0027] The specific real-time examples described herein are preferred real-time examples of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A rapid-cooling injection mold structure for quick demolding, comprising a lower mold (1) and an upper mold (8), characterized in that: The lower mold (1) includes a lower mold base (2), and the lower mold base (2) is provided with a first cooling cavity (3). The first cooling cavity (3) is installed with a first forming seat (6). Multiple first fins (7) are fixedly connected to the outer surfaces of the three adjacent sides of the first forming seat (6). The upper mold (8) includes an upper mold base (9), and a second forming seat (11) is fixedly installed on the end face of the upper mold base (9). The second forming seat (11) is provided with a second cooling cavity (13), and multiple second fins (12) are fixedly connected to the inner walls of the three adjacent sides of the second cooling cavity (13).
2. The rapid cooling injection mold structure for quick demolding according to claim 1, characterized in that: A first liquid guide nozzle (5) is fixedly installed on the symmetrical end face of the lower mold base (2), and the two first liquid guide nozzles (5) are respectively connected to the two ends of the interior of the first cooling cavity (3).
3. The rapid cooling injection mold structure for quick demolding according to claim 1, characterized in that: The upper mold base (9) has two flow channels inside, and a second liquid guide nozzle (10) is installed at the port of each of the two flow channels. The other ends of the two flow channels are connected to the two ends of the interior of the second cooling chamber (13).
4. The rapid cooling injection mold structure for quick demolding according to claim 1, characterized in that: The lower mold base (2) has a sliding hole on its lower surface, and a push rod (4) passes through the inside of the sliding hole. A spring (14) is sleeved on one end of the push rod (4).
5. The rapid cooling injection mold structure for quick demolding according to claim 4, characterized in that: A lifting hole is provided on the bottom end face of the first molding seat (6), and one end of the top rod (4) passes through the interior of the lifting hole. The end face of the top rod (4) is flush with the inner wall of the first molding seat (6).
6. The rapid cooling injection mold structure for quick demolding according to claim 1, characterized in that: The upper mold base (9) and the second molding base (11) are provided with air extraction holes and injection holes with corresponding positions.