Cooling channel structure of double-color injection molding mold

Abstract

The utility model relates to the technical field of mold cooling, and discloses a double-color injection molding mold cooling channel structure, which comprises a mold seat and a cooling water tank, the outer surface of the mold seat is provided with a plurality of mold forming cavities, the outer surface of the cooling water tank is fixedly communicated with a water pump, the output end of the water pump is fixedly communicated with a water inlet pipe, and the water inlet pipe is fixedly communicated with a water outlet pipe. The outer surface of the water inlet pipe is fixedly communicated with a plurality of spiral cooling pipes, and the outer surfaces of the plurality of cooling water pipes are all provided with cold conduction sheets. Meanwhile, the outer surfaces of the plurality of cooling water pipes are all provided with the cold conduction sheets, and the outer surfaces of the cold conduction sheets and the outer surfaces of the cooling water pipes are fixedly connected with the outer surface of the mold forming cavity, so that the mold forming cavity is independently cooled, and the effects of reducing inconsistent cooling effects of the front cavity and the rear cavity and improving the production efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold cooling, in particular to a cooling channel structure for a two-color injection molding mold. Background Technique

[0002] Two-color injection molding refers to the molding process of injecting two different materials into the same set of molds, so that the injected parts are formed by two materials. Some of the two materials are of different colors, and some are of different hardnesses, so as to improve the aesthetics and assembly performance of the product. During the mold forming process, it is necessary to heat the plastic sheet to make it fully extend and form. After the product is formed in the mold cavity, it is necessary to use the cooling structure in the mold to cool each cavity in the mold, so that the thermoplastic product can be cooled and shaped, and then the formed product is taken out of the mold and enters the next round of thermoplastic forming operation. In a two-color injection molding mold, its cooling structure is to directly set channels in the mold, so that the channels pass through multiple cavities, and by introducing a coolant, such as cooling oil or cooling water, etc., the cooling of multiple cavities on the mold is realized.

[0003] Since the coolant needs to pass through multiple cavities, during the cooling process, the temperature of the coolant will gradually rise, resulting in inconsistent cooling effects of the front and rear cavities. In order to ensure sufficient cooling of each cavity, a longer cooling time is required, which not only reduces production efficiency but also increases production costs. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a cooling channel structure for a two-color injection molding mold to solve the problems mentioned in the above background technique, that is, since the coolant needs to pass through multiple cavities, during the cooling process, the temperature of the coolant will gradually rise, resulting in inconsistent cooling effects of the front and rear cavities. In order to ensure sufficient cooling of each cavity, a longer cooling time is required, which not only reduces production efficiency but also increases production costs.

[0005] To achieve the above object, the utility model provides the following technical solution: A cooling channel structure for a two-color injection molding mold, including a mold base and a cooling water tank. The outer surface of the mold base is provided with a plurality of mold forming cavities. The outer surface of the cooling water tank is fixedly communicated with a water pump. The output end of the water pump is fixedly communicated with a water inlet pipe. The outer surface of the water inlet pipe is fixedly communicated with a plurality of spiral cooling pipes. The outer surfaces of the plurality of spiral cooling pipes are all provided with heat conduction fins. The outer surfaces of the heat conduction fins and the spiral cooling pipes are fixedly connected to the outer surface of the mold forming cavity. The output ends of the plurality of spiral cooling pipes are fixedly communicated with a water outlet pipe.

[0006] Preferably, a storage box is fixedly communicated with the output end of the spiral cooling pipe away from the spiral cooling pipe. A water quality filter is fixedly communicated with the outer surface of the storage box. A circulation pump is arranged at the output end of the water quality filter. A circulation water pipe is fixedly communicated with the output end of the circulation pump. The outer surface of the circulation water pipe away from the water quality filter is fixedly communicated with a cooling water tank.

[0007] Preferably, a heat dissipation fan is connected through the outer surface of the mold base, and a plurality of heat dissipation openings are formed in the outer surface of the mold base away from the heat dissipation fan.

[0008] Preferably, the spiral cooling pipe is wound around the outer surface of the mold forming cavity in a spiral shape.

[0009] Preferably, the cooling water tank and the storage box are arranged on both sides of the mold base, and cooling pipes are arranged inside both the cooling water tank and the storage box.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. For the cooling channel structure of the two-color injection molding mold, by fixedly communicating a plurality of spiral cooling pipes with the outer surface of the water inlet pipe, and at the same time, heat conduction sheets are arranged on the outer surfaces of the plurality of spiral cooling pipes, and the outer surfaces of the heat conduction sheets and the spiral cooling pipes are fixedly connected to the outer surface of the mold forming cavity, so as to independently cool the mold forming cavity, thereby achieving the effect of reducing the inconsistent cooling effect of the front and rear cavities and improving the production efficiency.

[0012] 2. For the cooling channel structure of the two-color injection molding mold, by fixedly communicating a storage box with the output end of the spiral cooling pipe away from the spiral cooling pipe, at the same time, a water quality filter is fixedly communicated with the outer surface of the storage box, and a circulation pump is arranged at the output end of the water quality filter, the output end of the circulation pump is fixedly communicated with a circulation water pipe, and in addition, the outer surface of the circulation water pipe away from the water quality filter is fixedly communicated with a cooling water tank, thereby achieving the recycling of the cooling medium and effectively preventing the blockage of the cooling pipeline by impurities. Description of the Drawings

[0013] Figure 1 is a schematic cross-sectional view of the structure of the present utility model;

[0014] Figure 2 is a schematic top view of the structure of the present utility model;

[0015] Figure 3 is a schematic top cross-sectional view of the structure of the present utility model;

[0016] Figure 4 is a schematic side cross-sectional view of the structure of the present utility model.

[0017] In the figure: 1, mold base; 2, mold forming cavity; 3, cooling water tank; 4, water pump; 5, water inlet pipe; 6, spiral cooling pipe; 7, heat conduction fin; 8, water outlet pipe; 9, storage box; 10, water quality filter; 11, circulation pump; 12, circulation water pipe; 13, heat dissipation fan. Specific embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1:

[0020] Please refer to FIGS. 1-4 in combination.

[0021] A cooling channel structure for a two-color injection molding die includes a mold base 1 and a cooling water tank 3. A plurality of mold forming cavities 2 are arranged on the outer surface of the mold base 1. A water pump 4 is fixedly communicated with the outer surface of the cooling water tank 3. The output end of the water pump 4 is fixedly communicated with a water inlet pipe 5. A plurality of spiral cooling pipes 6 are fixedly communicated with the outer surface of the water inlet pipe 5. Heat conduction fins 7 are arranged on the outer surfaces of the plurality of spiral cooling pipes 6. The outer surfaces of the heat conduction fins 7 and the spiral cooling pipes are fixedly connected to the outer surface of the mold forming cavity 2. The output ends of the plurality of spiral cooling pipes 6 are fixedly communicated with a water outlet pipe 8.

[0022] Specifically, by fixedly communicating a plurality of spiral cooling pipes 6 with the outer surface of the water inlet pipe 5, and at the same time, heat conduction fins 7 are arranged on the outer surfaces of the plurality of spiral cooling pipes 6, and the outer surfaces of the heat conduction fins 7 and the spiral cooling pipes are fixedly connected to the outer surface of the mold forming cavity 2, independent cooling of the mold forming cavity 2 is achieved, thereby reducing the inconsistent cooling effect of the front and rear cavities and improving the production efficiency.

[0023] In the embodiment: A heat dissipation fan 13 is connected through the outer surface of the mold base 1, and a plurality of heat dissipation openings are opened on the outer surface of the mold base 1 away from the heat dissipation fan 13.

[0024] Specifically, a heat dissipation fan 13 is connected through the outer surface of the mold base 1, and a plurality of heat dissipation openings are opened on the outer surface of the mold base 1 away from the heat dissipation fan 13, further accelerating the heat dissipation and cooling effect.

[0025] In the embodiment: The spiral cooling pipe 6 is wound around the outer surface of the mold forming cavity 2 in a spiral shape.

[0026] Specifically, since the spiral cooling pipe 6 is wound around the outer surface of the mold forming cavity 2 in a spiral shape, it can be fully cooled with the mold forming cavity 2, and the cooling medium in the spiral cooling pipe 6 is cooled independently of the mold forming cavity 2, avoiding the problem of poor cooling efficiency.

[0027] Working principle: A number of mold forming cavities 2 are arranged on the outer surface of the mold base 1. A water pump 4 is fixedly connected and communicated with the outer surface of the cooling water tank 3. The output end of the water pump 4 is fixedly connected and communicated with a water inlet pipe 5. A number of spiral cooling pipes 6 are fixedly connected and communicated with the outer surface of the water inlet pipe 5. At the same time, a number of heat conduction sheets 7 are arranged on the outer surface of the spiral cooling pipes 6. Moreover, the outer surfaces of the heat conduction sheets 7 and the spiral cooling pipes 6 are fixedly connected to the outer surface of the mold forming cavity 2, enabling independent cooling of the mold forming cavity 2. Compared with the related technology, a two-color injection molding mold cooling channel structure provided by the present utility model has the following beneficial effects: Thus, it achieves the effect of reducing the inconsistent cooling effect of the front and rear cavities and improving production efficiency.

[0028] Embodiment 2:

[0029] Please refer to FIGS. 1-4 in combination.

[0030] A storage tank 9 is fixedly connected and communicated with the output end of the spiral cooling pipe 6 away from the spiral cooling pipe 6. A water quality filter 10 is fixedly connected and communicated with the outer surface of the storage tank 9. A circulation pump 11 is arranged at the output end of the water quality filter 10. The output end of the circulation pump 11 is fixedly connected and communicated with a circulation water pipe 12. The outer surface of the circulation water pipe 12 away from the water quality filter 10 is fixedly connected to the cooling water tank 3.

[0031] Specifically, by fixedly connecting and communicating a storage tank 9 with the output end of the spiral cooling pipe 6 away from the spiral cooling pipe 6, at the same time, a water quality filter 10 is fixedly connected and communicated with the outer surface of the storage tank 9, and a circulation pump 11 is arranged at the output end of the water quality filter 10. The output end of the circulation pump 11 is fixedly connected and communicated with a circulation water pipe 12. In addition, the outer surface of the circulation water pipe 12 away from the water quality filter 10 is fixedly connected to the cooling water tank 3, thus achieving the recycling of the cooling medium and effectively preventing the blockage of the cooling pipeline by impurities.

[0032] In the embodiment: The cooling water tank 3 and the storage tank 9 are arranged on both sides of the mold base 1, and cooling pipes are arranged inside both the cooling water tank 3 and the storage tank 9.

[0033] Specifically, since the cooling water tank 3 and the storage tank 9 are arranged on both sides of the mold base 1, and cooling pipes are arranged inside both the cooling water tank 3 and the storage tank 9, it can ensure the maximum cooling of the mold forming cavity 2 during cooling.

[0034] Working principle: A storage box 9 is fixedly communicated with the output end of the spiral cooling pipe 6 away from the spiral cooling pipe 6. At the same time, a water quality filter 10 is fixedly communicated with the outer surface of the storage box 9. While cooling the cooling medium, impurities in the medium are filtered. Moreover, a circulation pump 11 is arranged at the output end of the water quality filter 10, and the output end of the circulation pump 11 is fixedly communicated with a circulation water pipe 12. In addition, the outer surface of the circulation water pipe 12 away from the water quality filter 10 is fixedly communicated with the cooling water tank 3. Compared with the related technology, a cooling channel structure of a two-color injection molding die provided by the present utility model has the following beneficial effects: Thus, the recycling of the cooling medium is achieved, and the effect of effectively preventing impurities in the cooling pipeline from blocking the pipeline is achieved.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling channel structure for a two-color injection molding mold, comprising a mold base (1) and a cooling water tank (3), characterized in that: The outer surface of the mold base (1) is provided with a plurality of mold forming cavities (2); the outer surface of the cooling water tank (3) is fixedly connected to a water pump (4); the output end of the water pump (4) is fixedly connected to a water inlet pipe (5); the outer surface of the water inlet pipe (5) is fixedly connected to a plurality of spiral cooling pipes (6); the outer surfaces of the plurality of spiral cooling pipes (6) are all provided with cooling fins (7); the outer surfaces of the cooling fins (7) and the spiral cooling pipes (6) are fixedly connected to the outer surface of the mold forming cavity (2); and the output ends of the plurality of spiral cooling pipes (6) are fixedly connected to water outlet pipes (8).

2. A two-color injection molding mold cooling channel structure according to claim 1, characterized in that: The output end of the spiral cooling tube (6) away from the spiral cooling tube (6) is fixedly connected to a storage box (9), the outer surface of the storage box (9) is fixedly connected to a water filter (10), the output end of the water filter (10) is provided with a circulation pump (11), the output end of the circulation pump (11) is fixedly connected to a circulation water pipe (12), and the circulation water pipe (12) is fixedly connected to a cooling water tank (3) away from the outer surface of the water filter (10).

3. The cooling channel structure of a two-color injection molding mold according to claim 1, characterized in that: A heat dissipation fan (13) is connected through the outer surface of the mold base (1), and a plurality of heat dissipation openings are provided on the outer surface of the mold base (1) away from the heat dissipation fan (13).

4. The cooling channel structure of a two-color injection molding mold according to claim 1, characterized in that: The spiral cooling pipe (6) is spirally wound and connected to the outer surface of the mold forming cavity (2).

5. The cooling channel structure of a two-color injection molding mold according to claim 2, characterized in that: The cooling water tank (3) and the storage box (9) are arranged on both sides of the mold base (1), and cooling pipes are arranged inside the cooling water tank (3) and the storage box (9).

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