Injection mold with efficient heat dissipation structure

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold with an efficient heat dissipation structure, which comprises a movable mold seat, the upper end of the movable mold seat is fixedly connected with a movable mold frame, the upper end of the movable mold seat is provided with a movable plate, the upper end of the movable plate is provided with a sliding column, the outer side of the sliding column is provided with a spring, and the movable mold frame is fixedly connected with the movable mold frame. The upper end of the movable mold frame is fixedly connected with a guide column, and the upper end of the movable plate is fixedly connected with an ejector pin. According to the injection mold with the efficient heat dissipation structure, the stripper plate assembly is arranged, it can be ensured that injection molding liquid smoothly flows into a cavity of the injection mold from a heating furnace, it is ensured that the cavity is filled with the injection molding liquid, and the subsequent forming process is facilitated; after a product is formed, refrigerants are injected into the three sets of cooling pipes, the product is rapidly cooled, the production efficiency is improved, the limiting columns are arranged, limiting of the stripper plate body is facilitated, the guide columns are arranged, and the mold closing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a high-efficiency heat dissipation structure. Background Art

[0002] Injection molds are tools used to produce injection molded products and are one of the key components of the injection molding process. Injection molds are used to manufacture various plastic products, including plastic parts, components, accessories, containers, packaging, toys, automotive parts, electronic product housings, etc.

[0003] China utility model patent announcement number: CN 209079079 U, discloses: an injection mold, the injection mold, by setting an injection mold front mold and an injection mold back mold, the injection mold front mold and the injection mold back mold cooperate to form a mold molding cavity, inject plastic melt, cool and shape to form a product, in the process of injecting plastic melt, by setting a buffer in the fluid flow process to change the flow rate of the plastic melt, thereby reducing the phenomenon of the plastic melt producing stamping marks on the product, improving the quality and appearance of the product, by reducing the stamping marks, the qualified rate of the product can be further improved, but the cooling effect of the injection mold is not good, the molded product in the cavity cannot be fully cooled, and the production efficiency is reduced. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an injection mold with an efficient heat dissipation structure, which can effectively solve the problems of poor cooling effect of the injection mold in the prior art, inability to fully cool the molded product in the cavity, and reduced production efficiency.

[0005] The technical solution adopted by the utility model is: an injection mold with an efficient heat dissipation structure, comprising a movable mold seat, the upper end of the movable mold seat is fixedly connected to the movable mold frame, the upper end of the movable mold seat is provided with a movable plate, the upper end of the movable plate is provided with a sliding column, the outer side of the sliding column is provided with a spring, the upper end of the movable mold frame is fixedly connected to a guide column, the upper end of the movable plate is fixedly connected to an ejector pin, the upper end of the movable plate is fixedly connected to a cylinder, the upper end of the movable mold frame is provided with a movable mold assembly, the upper end of the movable mold assembly is provided with a fixed mold assembly, the upper end of the fixed mold assembly is provided with a sprue plate assembly, and the upper end of the fixed mold assembly is provided with a top plate assembly.

[0006] Preferably, the movable mold assembly includes a movable mold body, a mold cavity and a cooling tube. The mold cavity is opened at the upper end of the movable mold body, and a cooling tube is arranged inside the movable mold body.

[0007] Through the above technical solution, a movable mold component is provided, and injection molding can be performed after the movable mold component and the fixed mold component are molded together.

[0008] Preferably, the upper and lower ends of the spring are fixedly connected to the movable mold body and the movable plate respectively, and the movable plate is slidably connected to the sliding column.

[0009] Through the above technical solution, a spring is set, and the ejector is inserted into the movable mold body in the initial state. When demolding, the cylinder is started to drive the moving plate upward along the sliding column, driving the ejector to eject the product. The number of ejectors is large, the contact area with the product is large, and the demolding is smooth.

[0010] Preferably, the fixed mold assembly includes a fixed mold body and cooling pipe 2, and cooling pipe 2 is arranged inside the fixed mold body.

[0011] Through the above technical solution, a fixed mold component is provided to cooperate with the movable mold component to perform injection molding of the product.

[0012] Preferably, the nozzle plate assembly includes a nozzle plate body and a cooling pipe three, and the interior of the nozzle plate body is provided with a cooling pipe three.

[0013] Through the above technical scheme, a sprue plate assembly is set up to ensure that the injection molding liquid flows smoothly from the heating furnace into the cavity of the injection mold, ensuring that the cavity is filled with the injection molding liquid to facilitate the subsequent forming process. Cooling pipe one, cooling pipe two and cooling pipe three are set up. After the product is formed, the refrigerant is injected into the three groups of cooling pipes to quickly cool the product and improve production efficiency.

[0014] Preferably, the top plate assembly includes a top plate body, a gate and a limiting column, the upper end of the top plate body is provided with a gate, and the lower end of the top plate body is fixedly connected to the limiting column.

[0015] Through the above technical solution, a top plate assembly is provided, and injection molding liquid is injected through the gate, and then injected into the mold cavity through the gate plate body and the fixed mold body for injection molding.

[0016] Preferably, the top plate body is plug-connected to the guide column, and the limit column is slidably connected to the nozzle plate body.

[0017] Through the above technical solution, a limiting column is provided to facilitate limiting the position of the nozzle plate body, and a guide column is provided to improve the stability of the mold clamping.

[0018] Compared with the prior art, the utility model provides an injection mold with an efficient heat dissipation structure, which has the following beneficial effects:

[0019] 1. The injection mold with an efficient heat dissipation structure is provided with a nozzle plate assembly, which can ensure that the injection plastic flows smoothly from the heating furnace into the cavity of the injection mold, and ensure that the cavity is filled with the injection plastic, so as to facilitate the subsequent forming process. Cooling pipe 1, cooling pipe 2 and cooling pipe 3 are provided. After the product is formed, the refrigerant is injected into the three groups of cooling pipes to quickly cool the product and improve production efficiency. Limiting columns are provided to facilitate the limiting of the nozzle plate body, and guide columns are provided to improve the stability of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0023] Figure 4 This is a schematic diagram of the split structure of the utility model Figure 1 ;

[0024] Figure 5 This is a schematic diagram of the split structure of the utility model Figure 2 .

[0025] Among them: 1. movable mold base; 2. movable mold frame; 3. movable plate; 4. sliding column; 5. spring; 6. guide column; 7. ejector pin; 8. cylinder; 9. movable mold assembly; 901. movable mold body; 902. cavity; 903. cooling pipe one; 10. fixed mold assembly; 1001. fixed mold body; 1002. cooling pipe two; 11. nozzle plate assembly; 1101. nozzle plate body; 1102. cooling pipe three; 12. top plate assembly; 1201. top plate body; 1202. gate; 1203. limiting column. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1: Figure 1-5As shown, the utility model provides an injection mold with an efficient heat dissipation structure, including a movable mold base 1, the upper end of the movable mold base 1 is fixedly connected to a movable mold frame 2, a movable plate 3 is arranged at the upper end of the movable mold base 1, a sliding column 4 is arranged at the upper end of the movable plate 3, a spring 5 is arranged on the outer side of the sliding column 4, a guide column 6 is fixedly connected to the upper end of the movable mold frame 2, a ejector pin 7 is fixedly connected to the upper end of the movable plate 3, a cylinder 8 is fixedly connected to the upper end of the movable plate 3, a movable mold assembly 9 is arranged at the upper end of the movable mold frame 2, a fixed mold assembly 10 is arranged at the upper end of the movable mold assembly 9, a sprue plate assembly 11 is arranged at the upper end of the fixed mold assembly 10, and a top plate assembly 12 is arranged at the upper end of the fixed mold assembly 10.

[0028] Specifically, the movable mold assembly 9 includes a movable mold body 901, a mold cavity 902 and a cooling pipe 903. The upper end of the movable mold body 901 is provided with a mold cavity 902, and a cooling pipe 903 is provided inside the movable mold body 901. The advantage is that the movable mold assembly 9 is provided, and the movable mold assembly 9 and the fixed mold assembly 10 can be molded together to perform injection molding.

[0029] Specifically, the upper and lower ends of the spring 5 are respectively fixedly connected to the movable mold body 901 and the movable plate 3, and the movable plate 3 is slidably connected to the slide post 4. The advantage is that the spring 5 is provided, the ejector pin 7 is inserted into the movable mold body 901 in the initial state, and when demolding, the cylinder 8 is started to drive the movable plate 3 upward along the slide post 4, and the ejector pin 7 is driven to eject the product. The number of the ejector pins 7 is large, the contact area with the product is large, and the demolding is smooth.

[0030] Specifically, the fixed mold assembly 10 includes a fixed mold body 1001 and a second cooling pipe 1002, and the interior of the fixed mold body 1001 is provided with a second cooling pipe 1002. The advantage is that the fixed mold assembly 10 is provided to cooperate with the movable mold assembly 9 to perform product injection molding.

[0031] Embodiment 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0032] Specifically, the nozzle plate assembly 11 includes a nozzle plate body 1101 and a cooling pipe three 1102, and a cooling pipe three 1102 is arranged inside the nozzle plate body 1101. The advantage is that the nozzle plate assembly 11 is provided to ensure that the injection plastic flows smoothly from the heating furnace into the cavity 902 of the injection mold, and to ensure that the cavity 902 is filled with the injection plastic, so as to facilitate the subsequent forming process, and the cooling pipe one 903, the cooling pipe two 1002 and the cooling pipe three 1102 are provided. After the product is formed, the refrigerant is injected into the three groups of cooling pipes to quickly cool the product and improve the production efficiency.

[0033] Specifically, the top plate assembly 12 includes a top plate body 1201, a gate 1202 and a limiting column 1203. The top plate body 1201 has a gate 1202 at its upper end, and the bottom end of the top plate body 1201 is fixedly connected to the limiting column 1203. The advantage is that the top plate assembly 12 is provided, and the injection molding liquid is injected through the gate 1202, and then injected into the mold cavity 902 through the gate plate body 1101 and the fixed mold body 1001 for injection molding.

[0034] Specifically, the top plate body 1201 is plug-connected with the guide column 6, and the limit column 1203 is slidably connected with the nozzle plate body 1101. The advantage is that the limit column 1203 is provided to facilitate the position limiting of the nozzle plate body 1101, and the guide column 6 is provided to improve the stability of the mold clamping.

[0035] Working principle: When in use, in the initial state, the ejector pin 7 is inserted into the movable mold body 901, and the movable mold base 1 is pushed toward the ejector plate assembly 12. The guide column 6 and the limit column 1203 align and limit the movable mold assembly 9, the fixed mold assembly 10, the nozzle plate assembly 11 and the ejector plate assembly 12. The injection plastic is injected through the gate 1202, and then injected into the cavity 902 through the nozzle plate body 1101 and the fixed mold body 1001 for injection molding. After the product is formed, the refrigerant is injected into the cooling pipe 1 903, the cooling pipe 2 1002 and the cooling pipe 3 1102 to quickly cool the product and improve production efficiency. When demolding, the cylinder 8 is started to drive the movable plate 3 upward along the sliding column 4, and drive the ejector pin 7 to eject the product. There are a large number of ejector pins 7, a large contact area with the product, and smooth demolding.

[0036] Although embodiments of the present invention 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 invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with an efficient heat dissipation structure, comprising a movable mold base (1), characterized in that: The upper end of the movable mold base (1) is fixedly connected to the movable mold frame (2); the upper end of the movable mold base (1) is provided with a movable plate (3); the upper end of the movable plate (3) is provided with a sliding column (4); the outer side of the sliding column (4) is provided with a spring (5); the upper end of the movable mold frame (2) is fixedly connected to a guide column (6); the upper end of the movable plate (3) is fixedly connected to an ejector pin (7); the upper end of the movable plate (3) is fixedly connected to a cylinder (8); the upper end of the movable mold frame (2) is provided with a movable mold assembly (9); the upper end of the movable mold assembly (9) is provided with a fixed mold assembly (10); the upper end of the fixed mold assembly (10) is provided with a sprue plate assembly (11); and the upper end of the fixed mold assembly (10) is provided with an ejector plate assembly (12).

2. The injection mold with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The movable mold assembly (9) comprises a movable mold body (901), a mold cavity (902) and a cooling pipe (903); the mold cavity (902) is provided at the upper end of the movable mold body (901), and a cooling pipe (903) is provided inside the movable mold body (901).

3. The injection mold with a high-efficiency heat dissipation structure according to claim 2, characterized in that: The upper and lower ends of the spring (5) are respectively fixedly connected to the movable mold body (901) and the movable plate (3), and the movable plate (3) is slidably connected to the sliding column (4).

4. The injection mold with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The fixed mold assembly (10) comprises a fixed mold body (1001) and a second cooling pipe (1002), and the interior of the fixed mold body (1001) is provided with a second cooling pipe (1002).

5. The injection mold with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The nozzle plate assembly (11) comprises a nozzle plate body (1101) and a cooling pipe three (1102), and the nozzle plate body (1101) is provided with a cooling pipe three (1102) inside.

6. The injection mold with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The top plate assembly (12) comprises a top plate body (1201), a gate (1202) and a limiting column (1203); the top plate body (1201) is provided with a gate (1202) at the upper end, and the top plate body (1201) is fixedly connected to the limiting column (1203) at the lower end.

7. The injection mold with a high-efficiency heat dissipation structure according to claim 6, characterized in that: The top plate body (1201) is plug-connected to the guide column (6), and the limit column (1203) is slidably connected to the nozzle plate body (1101).

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