Injection mold structure with high cooling efficiency

Abstract

The utility model discloses a kind of injection mould structures of high-efficiency cooling, belong to injection mould technical field.The structure includes movable mould fixed plate and fixed mould fixed plate, movable mould fixed plate side is connected movable mould plate through cushion block, movable mould plate is equipped with mould groove and inside columnar forming rod, cushion block has cooling coil opposite with the back of mould groove and capillary cooling water tank located inside columnar forming rod, two are respectively connected corresponding inlet and outlet pipe, fixed mould fixed plate side installs fixed mould plate with adaptive mould core.Cooling system is controlled by electromagnetic valve and three-way electromagnetic valve, when just clamping mould injection, hot steam is passed into capillary cooling water tank to keep temperature, switch to circulating cooling water when cooling.This structure realizes that mould whole and special position are uniformly and efficiently cooled, reduce high-light injection-molded part weld mark using fast temperature changing technology, improve surface quality, improve production efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to an injection mold structure with high-efficiency cooling. Background Technology

[0002] Injection molding, as an important plastic processing method, is widely used in various industries. During the injection molding process, the cooling effect of the mold has a crucial impact on product quality and production efficiency. Traditional injection mold cooling systems typically use a single cooling water path, which often makes it difficult to achieve uniform and efficient cooling for injection molded parts with complex structures or special features (such as columnar protrusions).

[0003] Especially in the production of high-gloss injection molded parts, conventional cooling methods often lead to uneven temperature distribution in the mold, causing the molten material to cool too quickly during flow, resulting in weld lines and severely affecting the surface quality and mechanical properties of the product. Simultaneously, slow cooling rates prolong the molding cycle, reduce production efficiency, and increase production costs. Therefore, developing an injection mold structure that achieves efficient cooling, reduces weld lines, and improves surface quality has become an urgent problem to be solved in this field.

[0004] Therefore, it is of great significance to provide an efficient cooling injection mold structure to solve the problems existing in the current technology. Utility Model Content

[0005] In view of this, the purpose of this application is to provide an injection mold structure with high efficiency cooling to solve the problems of uneven cooling, slow cooling speed, and poor surface quality of existing injection molds, especially for high-gloss injection molded parts with special parts.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An efficient cooling injection mold structure includes a moving mold fixing plate and a fixed mold fixing plate;

[0008] A moving mold plate is fixedly connected to one side of the moving mold fixing plate by a pad block. A mold groove is opened on one side of the moving mold plate. Three columnar forming rods are installed inside the mold groove. A cooling coil is installed inside the pad block. The cooling coil is opposite to the back of the mold groove. A capillary cooling water tank is installed inside the pad block. The capillary cooling water tank is located inside the columnar forming rods. A cooling water inlet pipe is connected to the liquid inlet end of the cooling coil, and a cooling water outlet pipe is connected to the liquid outlet end of the cooling coil.

[0009] The capillary cooling water tank has a capillary inlet pipe connected to its inlet end and a capillary outlet pipe connected to its outlet end.

[0010] A solenoid valve is installed at the inlet end of the cooling water inlet pipe, and a three-way solenoid valve II is installed at the inlet end of the capillary inlet pipe. The three-way solenoid valve II has two inlet ends. One of the inlet ends of the three-way solenoid valve II is connected to the cooling water inlet pipe, and the other inlet end of the three-way solenoid valve II is connected to a steam source.

[0011] The capillary tube is equipped with a three-way solenoid valve at its outlet end. The three-way solenoid valve has two outlet ends, one of which is connected to the cooling water outlet pipe and the other of which is connected to the steam return pipe.

[0012] The outlet end of the cooling water outlet pipe is connected to the return end of the chiller, and the inlet end of the solenoid valve is connected to the outlet end of the chiller.

[0013] A fixed template is installed on one side of the fixed mold fixing plate, and a mold core that matches the mold groove is provided on one side of the fixed template.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model achieves uniform and efficient cooling of the entire mold and special parts by setting up a cooling structure that combines cooling coils and capillary cooling water tanks. The cooling coils cool the entire mold cavity, while the capillary cooling water tanks provide precise cooling for the special part of the columnar forming rod. This greatly shortens the cooling time and improves production efficiency.

[0016] 2. Employing rapid temperature control technology, hot steam is introduced into the two-way capillary cooling water channel through a three-way solenoid valve during injection molding to maintain the temperature of special parts such as the columnar molding rod, which facilitates the smooth flow of the injection molding material. During cooling, the system switches to circulating cooling water for rapid cooling. This steam heating → rapid cooling process effectively reduces weld lines on high-gloss injection molded parts and significantly improves the surface quality of the product.

[0017] 3. The entire cooling system is precisely controlled by solenoid valves and three-way solenoid valves, allowing for flexible switching according to different stages of the injection molding process. It is easy to operate and highly automated. Simultaneously, the cooling water circulation loop enables the recycling of water resources, reducing production costs.

[0018] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0019] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural diagram of the cooling coil in this utility model.

[0023] In the diagram: 1. Moving mold fixing plate; 2. Pad block; 3. Capillary cooling water tank; 4. Three-way solenoid valve one; 5. Capillary inlet pipe; 6. Capillary outlet pipe; 7. Cooling water outlet pipe; 8. Mold groove; 9. Fixed mold plate; 10. Fixed mold fixing plate; 11. Columnar forming rod; 12. Moving mold plate; 13. Cooling water inlet pipe; 14. Solenoid valve; 15. Three-way solenoid valve two; 16. Steam inlet pipe; 17. Cooling coil. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0025] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0026] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0027] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0028] Please see Figure 1-2 This utility model provides a technical solution for a highly efficient cooling injection mold structure:

[0029] A high-efficiency cooling injection mold structure includes a moving mold fixing plate 1 and a fixed mold fixing plate 10. A moving mold plate 12 is fixedly connected to one side of the moving mold fixing plate 1 via a pad 2. A mold groove 8 is opened on one side of the moving mold plate 12. Three columnar forming rods 11 are installed inside the mold groove 8. A cooling coil 17 is installed inside the pad 2. The cooling coil 17 is opposite to the back of the mold groove 8. A capillary cooling water tank 3 is installed inside the pad 2. The capillary cooling water tank 3 is located inside the columnar forming rods 11. The inlet end of the cooling coil 17 is connected to a cooling water inlet pipe 13, and the outlet end of the cooling coil 17 is connected to a cooling water outlet pipe 7. The inlet end of the capillary cooling water tank 3 is connected to a capillary inlet pipe 5, and the outlet end of the capillary cooling water tank 3 is connected to a capillary outlet pipe 6.

[0030] A solenoid valve 14 is installed at the inlet end of the cooling water inlet pipe 13, and a three-way solenoid valve 2 15 is installed at the inlet end of the capillary inlet pipe 5. The three-way solenoid valve 2 15 includes two inlet ends. One inlet end of the three-way solenoid valve 2 15 is connected to the cooling water inlet pipe 13, and the other inlet end of the three-way solenoid valve 2 15 is connected to a steam source.

[0031] A three-way solenoid valve 4 is installed at the liquid outlet end of the capillary tube 6. The three-way solenoid valve 4 includes two liquid outlets, one of which is connected to the cooling water outlet pipe 7 and the other is connected to the steam return pipe.

[0032] The outlet end of the cooling water outlet pipe 7 is connected to the return end of the chiller, and the inlet end of the solenoid valve 14 is connected to the outlet end of the chiller.

[0033] A fixed template 9 is installed on one side of the fixed mold fixing plate 10, and a mold core that matches the mold groove 8 is provided on one side of the fixed template 9.

[0034] Working principle: During injection molding, the moving mold fixing plate 1 and the fixed mold fixing plate 10 first close, and the mold core on the fixed mold plate 9 cooperates with the mold groove 8 on the moving mold plate 12 to form a cavity. At this time, the three-way solenoid valve 15 switches to the liquid inlet end connected to the steam source, and hot steam enters the capillary cooling water tank 3 through the capillary inlet pipe 5 to heat the columnar forming rod 11 and maintain its temperature so that the injection plastic can flow smoothly to fill the cavity and reduce the generation of weld lines. At the same time, the three-way solenoid valve 4 switches to the liquid outlet end connected to the steam return pipe, and the liquid after steam condensation is discharged through the capillary outlet pipe 6 and the steam return pipe.

[0035] After injection molding is completed, the cooling stage begins. At this time, the three-way solenoid valve 15 switches to the inlet end connected to the cooling water inlet pipe 13, and simultaneously opens the solenoid valve 14. Cooling water from the chiller flows into the cooling coil 17 and the capillary cooling water tank 3 through the cooling water inlet pipe 13. The cooling coil 17 cools the mold cavity 8 as a whole, while the capillary cooling water tank 3 provides localized cooling for the columnar molding rod 11. The two work together to achieve rapid cooling. During this process, the three-way solenoid valve 4 switches to the outlet end connected to the cooling water outlet pipe 7. The cooled water flows back to the chiller through the capillary outlet pipe 6 and the cooling water outlet pipe 7, completing the recycling of the cooling water.

[0036] After cooling is complete, the moving mold fixing plate 1 and the fixed mold fixing plate 10 open the mold, and the molded high-gloss injection molded part is taken out, completing one injection molding process.

[0037] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.

Claims

1. A highly efficient cooling injection mold structure, characterized in that, include: Moving mold fixing plate (1) and fixed mold fixing plate (10); One side of the moving mold fixing plate (1) is fixedly connected to the moving template (12) by the pad (2). The moving template (12) has a mold groove (8) on one side. Three columnar forming rods (11) are installed inside the mold groove (8). A cooling coil (17) is installed inside the pad (2). The cooling coil (17) is on the back of the mold groove (8). A capillary cooling water tank (3) is installed inside the pad (2). The capillary cooling water tank (3) is located inside the columnar forming rods (11). The inlet end of the cooling coil (17) is connected to a cooling water inlet pipe (13). The outlet end of the cooling coil (17) is connected to a cooling water outlet pipe (7). The capillary cooling water tank (3) has a capillary inlet pipe (5) connected to its inlet end and a capillary outlet pipe (6) connected to its outlet end.

2. The injection mold structure with high-efficiency cooling according to claim 1, characterized in that, A solenoid valve (14) is installed at the inlet end of the cooling water inlet pipe (13), and a three-way solenoid valve (15) is installed at the inlet end of the capillary inlet pipe (5). The three-way solenoid valve (15) has two inlet ends. One of the inlet ends of the three-way solenoid valve (15) is connected to the cooling water inlet pipe (13), and the other inlet end of the three-way solenoid valve (15) is connected to a steam source.

3. The injection mold structure with high-efficiency cooling according to claim 1, characterized in that, The capillary outlet tube (6) is equipped with a three-way solenoid valve (4) at its outlet end. The three-way solenoid valve (4) has two outlet ends, one of which is connected to the cooling water outlet tube (7) and the other of which is connected to the steam return tube.

4. The injection mold structure with high-efficiency cooling according to claim 2, characterized in that, The outlet end of the cooling water outlet pipe (7) is connected to the return end of the chiller, and the inlet end of the solenoid valve (14) is connected to the outlet end of the chiller.

5. The injection mold structure with high-efficiency cooling according to claim 1, characterized in that, A fixed template (9) is installed on one side of the fixed mold fixing plate (10), and a mold core that is compatible with the mold groove (8) is provided on one side of the fixed template (9).

Images