Cooling structure of injection mold

Abstract

The utility model belongs to the technical field of injection mold cooling, and particularly relates to an injection mold cooling structure which comprises a base, a cavity is formed in a lower mold, a pipe groove is formed in the lower mold, a first air groove and a second air groove are formed in the lower mold, a plurality of first exhaust holes are formed in a bottom plate of the first air groove, and a plurality of second exhaust holes are formed in a bottom plate of the second air groove. A plurality of second air exhaust holes are formed in a top plate of the second air groove, the first air exhaust pipe is connected with the first air groove through the side wall of the lower die, the second air exhaust pipe is connected with the second air groove through the side wall of the lower die, cooling water passes through the three sets of cooling pipes, and in the process, the cooling water passes through the three sets of cooling pipes. Cold air exhausted by the first exhaust holes and the second exhaust holes is blown to the three sets of cooling pipes in the pipe groove, rapid cooling of cooling water in the three sets of cooling pipes is achieved, the cooling water is efficiently cooled through the structure, so that the cooling water is kept in a low-temperature state, the heat absorption effect of the cooling water is improved, and the cooling effect on injection molding parts is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold cooling technical field, concretely is an injection mold cooling structure. BACKGROUND

[0002] Injection mold is a kind of tool for manufacturing plastic product, and the molten plastic is injected into mold by injection molding, and the required plastic product is formed after cooling, to improve the cooling efficiency of plastic product, cooling structure needs to be used to cool plastic product.

[0003] One kind of cooling structure of automobile car lamp injection mold is disclosed in one Chinese patent with the application publication number CN 113715281 A, including the heat dissipation bottom frame, the top of the heat dissipation bottom frame is equipped with the fixed mould, the top of the fixed mould is engaged with the movable mould, the surface of the movable mould top is equipped with the heat conduction column, the top of the heat conduction column is fixedly connected with the heat dissipation copper plate, the top of the heat dissipation copper plate is equipped with the heat dissipation grille, the inner cavity of the fixed mould is equipped with multiple groups of through oil cooling groove, the left side of the through oil cooling groove is communicated with the liquid return pipe through the sealing pipe.The use of heat conduction column, heat dissipation copper plate and heat dissipation grille can effectively cool the movable mould, the use of liquid return pipe, through oil cooling groove, liquid inlet pipe, heat dissipation frame, cross pipe, pump, discharge pipe, storage frame, top pipe, bottom pipe and capillary heat dissipation pipe can make the use of cooling oil complete cycle of heat dissipation, the use of fan and mounting frame can effectively improve the air cooling effect of equipment.

[0004] The existing cooling structure usually uses cooling water to cool during the cooling process of injection molding parts, but the cooling effect is poor due to the inability to cool the cooling water efficiently, therefore, a kind of injection mold cooling structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the prior art and solve the problems in the prior art, the utility model provides an injection mold cooling structure.

[0006] The utility model discloses a technical scheme that solves its technical problem is a kind of injection mold cooling structure, including base, the lower mould is installed on the base, the lower mould is equipped with mould cavity, the cavity is located in the periphery of mould cavity, the lower mould is equipped with pipe groove inside, the lower mould is equipped with first air groove and second air groove inside, the first air groove and second air groove are located in the both ends of pipe groove, a plurality of first exhaust holes are equipped on the first air groove bottom plate, a plurality of second exhaust holes are equipped on the second air groove top plate, the base is installed with air guide box, the air guide box is connected with first exhaust pipe and second exhaust pipe, the first exhaust pipe is connected with first air groove by lower mould side wall, the second exhaust pipe is connected with second air groove by lower mould side wall, fan is installed on the air guide box by machine base, fan is installed with air guide pipe, the other end of air guide pipe is connected with air guide box, cooling water passes through three groups of cooling pipes, in this process, the cold air of first exhaust hole and second exhaust hole is blown on three groups of cooling pipes in pipe groove, realizes the rapid cooling of cooling water in three groups of cooling pipes, this structure is cooled to the cooling water efficiently, so that cooling water keeps in low temperature state, improves the heat absorption effect of cooling water, is beneficial to improve the cooling effect of injection molding part.

[0007] Preferably, the base is installed with water tank, the pump machine is installed on the water tank by machine base, the first water guide pipe is installed on the pump machine, the other end of the first water guide pipe is connected with the water tank, the second water guide pipe is installed on the pump machine, the other end of the second water guide pipe penetrates lower mould side wall and is connected with the cavity, the other end of the cavity is connected with the third water guide pipe through lower mould side wall, the other end of the third water guide pipe is connected with three groups of cooling pipes, the other end of three groups of cooling pipes is connected with the fourth water guide pipe, the other end of the fourth water guide pipe is connected with the water tank, cooling water enters the cavity of lower mould from the second water guide pipe, as the cavity is located in the periphery of mould cavity, surrounds the injection molding part in mould cavity, realizes the large-area cooling of injection molding part, cooling water absorbs and removes the heat of injection molding part, finally flows back in water tank, realizes the recycling of cooling water, this structure can cool the injection molding part in large area, is beneficial to improve cooling efficiency.

[0008] The utility model has the advantages that:

[0009] 1. The utility model discloses a technical scheme that solves its technical problem is a kind of injection mold cooling structure, through cooling water and passes through three groups of cooling pipes, in this process, the cold air of first exhaust hole and second exhaust hole is blown on three groups of cooling pipes in pipe groove, realizes the rapid cooling of cooling water in three groups of cooling pipes, this structure is cooled to the cooling water efficiently, so that cooling water keeps in low temperature state, improves the heat absorption effect of cooling water, is beneficial to improve the cooling effect of injection molding part.

[0010] 2. In this invention, cooling water enters the cavity of the lower mold through the second water guide pipe. Since the cavity is located on the periphery of the mold cavity, it surrounds the injection molded part inside the mold cavity, realizing large-area cooling of the injection molded part. The cooling water absorbs and carries away the heat of the injection molded part, and finally flows back into the water tank, realizing the recycling of cooling water. This structure can cool the injection molded part over a large area, which is beneficial to improving cooling efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the cavity.

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the fan unit;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the water tank.

[0016] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the lower mold.

[0017] In the diagram: 1. Base; 2. Lower mold; 3. Mold cavity; 4. Hole; 5. Pipe groove; 6. First air groove; 7. Second air groove; 8. First exhaust vent; 9. Second exhaust vent; 10. Air guide box; 11. First exhaust duct; 12. Second exhaust duct; 13. Fan; 14. Air guide duct; 15. Water tank; 16. Pump; 17. First water guide pipe; 18. Second water guide pipe; 19. Third water guide pipe; 20. Cooling pipe; 21. Fourth water guide pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figures 1-3As shown, an injection mold cooling structure, including a base 1, a lower mold 2 is installed on the base 1, a cavity 3 is opened on the lower mold 2, a cavity 4 is opened in the lower mold 2, the cavity 4 is located in the peripheral of the cavity 3, a pipe groove 5 is opened in the lower mold 2, a first air groove 6 and a second air groove 7 are opened in the lower mold 2, the first air groove 6 and the second air groove 7 are located at both ends of the pipe groove 5, a plurality of first exhaust holes 8 are opened on the bottom plate of the first air groove 6, a plurality of second exhaust holes 9 are opened on the top plate of the second air groove 7, a wind guide box 10 is installed on the base 1, a first exhaust pipe 11 and a second exhaust pipe 12 are connected to the wind guide box 10, the first exhaust pipe 11 is connected with the first air groove 6 through the side wall of the lower mold 2, the second exhaust pipe 12 is connected with the second air groove 7 through the side wall of the lower mold 2, a fan 13 is installed on the wind guide box 10 through the machine base, a wind guide pipe 14 is installed on the fan 13, the other end of the wind guide pipe 14 is connected with the wind guide box 10; When working, the existing cooling structure is usually cooled by cooling water during the cooling process of the injection part, but due to the inability to cool the cooling water efficiently, the cooling effect is poor, the outer wall of the cavity 3 is cooled by the cooling water, the cooling of the injection part is realized, then the cooling water passes through three groups of cooling pipes 20, and finally flows back into the water tank 15, realizing the circulation of the cooling water. During this process, the fan 13 operates, the fan 13 pours cold air into the wind guide box 10, then the cold air is guided into the first air groove 6 and the second air groove 7 through the first exhaust pipe 11 and the second exhaust pipe 12 respectively, then it is discharged from the first exhaust hole 8 and the second exhaust hole 9, the cold air discharged from the first exhaust hole 8 and the second exhaust hole 9 blows on the three groups of cooling pipes 20 in the pipe groove 5, realizing the rapid cooling of the cooling water in the three groups of cooling pipes 20. This structure cools the cooling water efficiently, so that the cooling water remains in a low temperature state, improves the heat absorption effect of the cooling water, and is beneficial to improve the cooling effect of the injection part.

[0020] Please refer to Figures 4-5As shown, the base 1 is mounted with a water tank 15, the water tank 15 is mounted with a pump 16 through the machine base, the pump 16 is mounted with a first water pipe 17, the other end of the first water pipe 17 is connected with the water tank 15, the pump 16 is mounted with a second water pipe 18, the other end of the second water pipe 18 penetrates through the side wall of the lower mold 2 and is connected with the cavity 4, the other end of the cavity 4 is connected with a third water pipe 19 through the side wall of the lower mold 2, the other end of the third water pipe 19 is connected with three groups of cooling pipes 20, the other end of the three groups of cooling pipes 20 is connected with a fourth water pipe 21, the other end of the fourth water pipe 21 is connected with the water tank 15; When working, the existing cooling structure has low cooling efficiency because the area of the injection molding part is small during cooling, the pump 16 operates, the pump 16 guides the cooling water in the water tank 15 into the second water pipe 18 from the first water pipe 17, then the cooling water flows into the cavity 4 of the lower mold 2 from the second water pipe 18, because the cavity 4 is located at the periphery of the mold cavity 3, it surrounds the injection molding part in the mold cavity 3, realizes large-area cooling of the injection molding part, the cooling water absorbs and carries away the heat of the injection molding part, then the cooling water flows into the third water pipe 19, then flows into the three groups of cooling pipes 20 and is air-cooled, finally flows back into the water tank 15 from the fourth water pipe 21, realizes recycling of the cooling water, this structure can cool the injection molding part in a large area, which is beneficial to improve the cooling efficiency.

[0021] The working principle is that the existing cooling structure is usually cooled by cooling water during the cooling process of the injection molding part, but the cooling effect is poor due to the inefficient cooling of the cooling water. The outer wall of the mold cavity 3 is cooled by the cooling water, the cooling of the injection molding part is realized, and then the cooling water flows back into the water tank 15 through the three groups of cooling pipes 20, and finally realizes the circulation of the cooling water. During the process, the fan 13 operates, the fan 13 pours cold air into the air duct 10, and then the cold air is introduced into the first air groove 6 and the second air groove 7 through the first exhaust pipe 11 and the second exhaust pipe 12 respectively, and then is discharged from the first exhaust hole 8 and the second exhaust hole 9. The cold air discharged from the first exhaust hole 8 and the second exhaust hole 9 blows on the three groups of cooling pipes 20 in the pipe groove 5, and the cooling water in the three groups of cooling pipes 20 is quickly cooled. The structure can efficiently cool the cooling water, so that the cooling water is kept at a low temperature, the heat absorption effect of the cooling water is improved, and the cooling effect of the injection molding part is improved. During the cooling process of the existing cooling structure on the injection molding part, the area of the injection molding part is small, which leads to low cooling efficiency. The pump 16 operates, the pump 16 guides the cooling water in the water tank 15 from the first water guide pipe 17 into the second water guide pipe 18, and then the cooling water enters the cavity 4 of the lower mold 2 from the second water guide pipe 18. Since the cavity 4 is located at the periphery of the mold cavity 3, it surrounds the injection molding part in the mold cavity 3, realizes large-area cooling of the injection molding part, and the cooling water absorbs and removes the heat of the injection molding part. Then the cooling water flows into the third water guide pipe 19, and then flows into the three groups of cooling pipes 20 and is air-cooled, and finally flows back into the water tank 15 from the fourth water guide pipe 21, realizing the recycling of the cooling water. The structure can cool the injection molding part in a large area, and is beneficial to improve the cooling efficiency.

[0022] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An injection mold cooling structure characterized by: Including the base (1), the lower mold (2) is installed on the base (1), the mold cavity (3) is opened on the lower mold (2), the cavity (4) is opened in the lower mold (2), the cavity (4) is located in the peripheral of the mold cavity (3), the pipe groove (5) is opened in the lower mold (2), the first air groove (6) and the second air groove (7) are opened in the lower mold (2), the first air groove (6) and the second air groove (7) are located at both ends of the pipe groove (5), a plurality of first exhaust holes (8) are opened on the bottom plate of the first air groove (6), a plurality of second exhaust holes (9) are opened on the top plate of the second air groove (7), the air guide box (10) is installed on the base (1), the first exhaust pipe (11) and the second exhaust pipe (12) are connected to the air guide box (10), the first exhaust pipe (11) is connected with the first air groove (6) through the side wall of the lower mold (2), the second exhaust pipe (12) is connected with the second air groove (7) through the side wall of the lower mold (2), the fan (13) is installed on the air guide box (10) through the machine base.

2. An injection mold cooling structure according to claim 1, wherein: The fan (13) is installed with the air guide pipe (14), and the other end of the air guide pipe (14) is connected with the air guide box (10).

3. An injection mold cooling structure according to claim 1, wherein: The water tank (15) is installed on the base (1), the pump (16) is installed on the water tank (15) through the machine base, the first water guide pipe (17) is installed on the pump (16), and the other end of the first water guide pipe (17) is connected with the water tank (15).

4. An injection mold cooling structure according to claim 3, wherein: The second water guide pipe (18) is installed on the pump (16), and the other end of the second water guide pipe (18) penetrates the side wall of the lower mold (2) and is connected with the cavity (4).

5. An injection mold cooling structure according to claim 1, wherein: The third water guide pipe (19) is connected with the cavity (4) through the side wall of the lower mold (2) at the other end, and the other end of the third water guide pipe (19) is connected with the three groups of cooling pipes (20).

6. An injection mold cooling structure according to claim 5, wherein: The fourth water guide pipe (21) is connected with the other end of the three groups of cooling pipes (20), and the other end of the fourth water guide pipe (21) is connected with the water tank (15).

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