Plastic mold with cooling structure

Abstract

The utility model relates to the technical field of plastic molds, in particular to a plastic mold with a cooling structure, which comprises a mold body, a demolding structure is arranged in the mold body, the mold body consists of an upper mold and a lower mold, outer edges are integrally and fixedly connected to the left end and the right end of the lower mold, and sliding rods are fixedly connected to the upper ends of the outer edges. A top plate is fixedly connected to the upper ends of the sliding rods, a hydraulic cylinder for driving the upper mold to move is mounted at the lower end of the top plate, spiral cooling channels are formed in the upper mold and the lower mold, and an air-cooling heat dissipation module is mounted at the lower end of the lower mold; the spiral cooling channel greatly increases the contact area and time of cooling water and the wall surface of the mold, so that more efficient heat exchange is realized, the cooling effect is more obvious, and meanwhile, the heat dissipation of the mold is further accelerated through the synergistic effect of the fan and the heat dissipation fins, so that the molding period is effectively shortened, and the production efficiency is improved. And the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic mould, especially with cooling structure's plastic mould. BACKGROUND

[0002] In the plastic mould industry, the cooling efficiency of the mould has a profound influence on the forming quality of the plastic part, production efficiency and energy consumption, and an efficient cooling structure can ensure the dimensional stability of the plastic part, reduce deformation, shorten the production cycle and improve the overall production efficiency.

[0003] The traditional plastic mould usually adopts a simple straight-through cooling water channel layout, but this design has certain defects. Because the contact area of the cooling water with the mould wall is limited, the heat exchange efficiency is low, and it is difficult to ensure uniform distribution of the cooling water, which often leads to overheating or overcooling in local parts of the mould, affecting the overall cooling effect, thus prolonging the cooling process and reducing the production efficiency.

[0004] Therefore, in view of the above-mentioned problems of the traditional plastic mould, a plastic mould with a cooling structure can be designed, which greatly increases the contact area and time of the cooling water with the mould wall through the spiral cooling channel, thereby realizing more efficient heat exchange. At the same time, the mechanism of air cooling is used to further accelerate the heat dissipation of the mould, thereby effectively shortening the forming cycle and improving the production efficiency. SUMMARY

[0005] In order to overcome the problem of long cooling time and low production efficiency caused by the simple straight-through cooling water channel layout of the traditional plastic mould.

[0006] The technical scheme of the utility model is as follows: a plastic mould with a cooling structure, comprising a mould body, the mould body is internally provided with a demoulding structure and is composed of an upper mould and a lower mould, the left and right ends of the lower mould are integrally fixedly connected with an outer edge, the upper end of the outer edge is fixedly connected with a sliding rod, the upper end of the sliding rod is fixedly connected with a top plate, the lower end of the top plate is installed with a hydraulic cylinder for driving the upper mould to move, the power output end of the hydraulic cylinder is installed with the upper mould, the left and right ends of the upper mould are installed with a positioning ring, the positioning ring is slidingly connected to the outer wall of the sliding rod, the upper mould and the lower mould are both internally provided with a spiral cooling channel, the water inlet of the cooling channel is provided with a water inlet connector, the water outlet of the cooling channel is provided with a water outlet connector, the water inlet connector and the water outlet connector are connected with a cold water machine through a connecting structure, the upper end of the upper mould is installed with an injection pipe, and the lower end of the lower mould is installed with an air cooling heat dissipation module.

[0007] As preferred, the connecting structure comprises a water inlet hose, the water inlet pipes of the upper mold and the lower mold are provided with the water inlet hose, the water outlet pipes of the upper mold and the lower mold are provided with the water outlet hose, the water inlet hose is connected with the water outlet of the water cooler through a No.1 three-way pipe, and the water outlet hose is connected with the water inlet of the water cooler through a No.2 three-way pipe.

[0008] As preferred, the pipe opening of the water inlet hose and the water outlet hose is fixedly connected with a convex ring in an integrated mode, the outer wall of the convex ring is provided with external threads, the inner wall of the water inlet pipe and the water outlet pipe is provided with internal threads matched with the external threads, the water inlet hose is threadedly connected with the water inlet pipe, and the water outlet hose is threadedly connected with the water outlet pipe.

[0009] As preferred, the pipe opening of the water inlet pipe and the water outlet pipe is provided with an annular groove, and the pipe opening of the water inlet hose and the water outlet hose is provided with a sealing ring matched with the annular groove, and the sealing ring is embedded in the annular groove.

[0010] As preferred, the air-cooled heat dissipation module comprises a base, the lower end of the lower mold is fixedly connected with the base, the base is provided with a cavity, the lower end of the lower mold is provided with a heat dissipation fin, and the heat dissipation fin is located in the cavity, and the bottom of the cavity is provided with a fan with an internal power supply, and the fan rotates to dissipate heat.

[0011] As preferred, the outer wall of the base is provided with a heat dissipation groove penetrating through the outer wall, and the heat dissipation groove is distributed along the vertical direction of the base.

[0012] The beneficial effects of the present application are as follows: compared with a mold cooled only by cooling water, the present application greatly increases the contact area and time of the cooling water and the mold wall surface through the spiral cooling channel, so that more efficient heat exchange is realized, the cooling effect is more remarkable, at the same time, the mold heat dissipation is further accelerated through the synergistic effect of the fan and the heat dissipation fin, so that the molding cycle is effectively shortened and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The first three-dimensional structure schematic diagram of the plastic mold with the cooling structure is shown;

[0014] Figure 2 The second three-dimensional structure schematic diagram of the plastic mold with the cooling structure is shown;

[0015] Figure 3 The three-dimensional structure schematic diagram of the cooling channel of the plastic mold with the cooling structure is shown;

[0016] Figure 4 The three-dimensional structure schematic diagram of the connecting structure of the plastic mold with the cooling structure is shown;

[0017] Figure 5The plastic mold air-cooled heat dissipation module with cooling structure is shown as a three-dimensional structure split schematic view.

[0018] Figure 6 The plastic mold A with cooling structure is shown as a three-dimensional structure split schematic view.

[0019] Marked as: 1, upper mold; 2, lower mold; 3, outer edge; 4, sliding rod; 5, top plate; 6, hydraulic cylinder; 7, positioning ring; 8, cooling channel; 9, water inlet connector; 10, water outlet connector; 11, water chiller; 12, injection pipe; 13, water inlet hose; 14, water outlet hose; 15, No. 1 three-way pipe; 16, No. 2 three-way pipe; 17, convex ring; 18, sealing ring; 19, annular groove; 20, base; 21, cavity; 22, heat dissipation fin; 23, fan; 24, heat dissipation groove. DETAILED DESCRIPTION

[0020] The utility model is further explained below in combination with the drawings and examples.

[0021] Please refer to Figures 1-6The utility model provides a kind of embodiment: a plastic mould with cooling structure, including mould body, mould body is built-in stripping structure and mould body is composed of upper mould 1 and lower mould 2, and the left and right ends of lower mould 2 integrally fixedly connected with outer edge 3, the upper end of outer edge 3 is fixedly connected with slide bar 4, the upper end of slide bar 4 is fixedly connected with top plate 5, and the lower end of top plate 5 is equipped with the hydraulic cylinder 6 of driving upper mould 1 movement, the power output end of hydraulic cylinder 6 is equipped with upper mould 1, the left and right ends of upper mould 1 are equipped with positioning ring 7, and positioning ring 7 is slidably connected on the outer wall of slide bar 4, and spiral cooling channel 8 is set in upper mould 1 and lower mould 2, and the water inlet of cooling channel 8 is provided with water inlet pipe 9, and the water outlet of cooling channel 8 is provided with water outlet pipe 10, and water inlet pipe 9 and water outlet pipe 10 are connected with cold water machine 11 by connecting structure, the upper end of upper mould 1 is equipped with injection tube 12, the lower end of lower mould 2 is equipped with air-cooled heat dissipation module, and mould body is the main structure of entire plastic mould, it is composed of two parts of upper mould 1 and lower mould 2, and the two parts form a complete cavity when clamping, for injecting molten plastic and cooling forming, the cooperation of slide bar 4 and top plate 5 realizes the orientation and support effect of upper mould 1, the outer wall of slide bar 4 is slidably connected with positioning ring 7, to ensure the stability of upper mould 1 in the process of lifting, top plate 5 plays the role of supporting hydraulic cylinder 6 and power transmission, by the telescopic movement of hydraulic cylinder 6, the lifting and clamping or unclamping operation of upper mould 1 is realized, spiral cooling channel 8 is set in upper mould 1 and lower mould 2, these cooling channels 8 are connected with cold water machine 11 through water inlet pipe 9 and water outlet pipe 10, form complete cooling structure, and spiral cooling channel 8 increases the contact area and time of cooling water and mould wall surface, improves heat exchange efficiency, and further improves cooling effect, water inlet pipe 9 and water outlet pipe 10 are connected on the water inlet and water outlet of cooling channel 8 respectively through connecting structure, for guiding cooling water to enter and flow out of cooling channel 8, air-cooled heat dissipation module is discharged by fan 23 The heat of mould body is further improved the cooling effect of mould.

[0022] Please refer to Figure 1 、 Figure 4 and Figure 6In the embodiment, the connecting structure comprises a water inlet hose 13, the water inlet pipe 9 of the upper mold 1 and the lower mold 2 is provided with the water inlet hose 13, the water outlet pipe 10 of the upper mold 1 and the lower mold 2 is provided with the water outlet hose 14, the water inlet hose 13 is connected with the water outlet of the water cooler 11 through a No. 1 three-way pipe 15, the water outlet hose 14 is connected with the water inlet of the water cooler 11 through a No. 2 three-way pipe 16, the pipe opening of the water inlet hose 13 and the water outlet hose 14 is integrally fixedly connected with a convex ring 17, the outer wall of the convex ring 17 is provided with external threads, the inner wall of the water inlet pipe 9 and the water outlet pipe 10 is provided with internal threads matched with the external threads, the water inlet hose 13 is threadedly connected with the water inlet pipe 9, the water outlet hose 14 is threadedly connected with the water outlet pipe 10, the pipe opening of the water inlet pipe 9 and the water outlet pipe 10 is provided with an annular groove 19, the pipe opening of the water inlet hose 13 and the water outlet hose 14 is provided with a sealing ring 18 matched with the annular groove 19, the sealing ring 18 is embedded in the annular groove 19, the water inlet hose 13 and the water outlet hose 14 are respectively used for leading the cooling water of the water cooler 11 into the mold and leading the hot water in the mold to the water cooler 11, the design of the convex ring 17 makes the connection of the water inlet hose 13 and the water outlet hose 14 with the water inlet pipe 9 and the water outlet pipe 10 more close, meanwhile, the threadedly connected mode also makes the disassembly and replacement more convenient, the sealing ring 18 is used for enhancing the sealing property between the water inlet hose 13 and the water outlet hose 14 and the water inlet pipe 9 and the water outlet pipe 10, the annular groove 19 is a groove provided at the pipe opening of the water inlet pipe 9 and the water outlet pipe 10 and used for mounting the sealing ring 18, the design of the sealing ring 18 and the annular groove 19 can ensure that the cooling water will not leak out from the connection, meanwhile, the sealing ring 18 also has a certain elasticity and can adapt to the small gap between the hose and the pipe, improving the stability of the connection.

[0023] Please refer to Figure 5In the embodiment, the air-cooled heat dissipation module includes a base 20, the lower end of the lower mold 2 is fixedly connected with the base 20, a cavity 21 is formed in the base 20, the lower end of the lower mold 2 is provided with heat dissipation fins 22 and the heat dissipation fins 22 are located in the cavity 21, a fan 23 with an internal power supply is installed at the bottom of the cavity 21, the fan 23 rotates to drive heat dissipation, a heat dissipation groove 24 is formed through the outer wall of the base 20, the heat dissipation groove 24 is distributed along the vertical direction of the base 20, the base 20 is a basic support structure of the entire air-cooled heat dissipation module and also plays a role in supporting and fixing the lower mold 2, a cavity 21 is formed in the base 20, the cavity 21 provides installation space for the heat dissipation fins 22 and the fan 23, and a plurality of heat dissipation grooves 24 are also formed through the outer wall of the base 20, the heat dissipation grooves 24 help to quickly dissipate the heat blown out by the fan 23, the heat dissipation fins 22 are key heat dissipation components in the air-cooled heat dissipation module, the heat dissipation fins 22 are closely arranged at the lower end of the lower mold 2 to form a plurality of heat dissipation channels, when the fan 23 rotates, air flows through the channels to take away the heat on the heat dissipation fins 22.

[0024] When starting work, first, the water inlet hose 13 is connected to the water outlet of the water cooler 11 through the No. 1 three-way pipe 15, then the water outlet hose 14 is connected to the water inlet of the water cooler 11 through the No. 2 three-way pipe 16, and then the other ends of the water inlet hose 13 and the water outlet hose 14 are respectively fastened on the water inlet pipe 9 and the water outlet pipe 10 by threads, thus the connection of the cooling pipeline is completed;

[0025] Then, the hydraulic cylinder 6 is started, the hydraulic cylinder 6 starts to work and pushes the upper mold 1 to move, at this time, under the accurate guidance of the positioning ring 7, the upper mold 1 and the lower mold 2 are accurately docked, then the injection molding pipe 12 starts the injection molding work, and at the same time, the water cooler 11 and the fan 23 are also started synchronously, the water cooler 11 injects cold water into the spiral cooling channel 8 to cool the mold body, at the same time, the fan 23 starts to rotate to effectively take away the heat on the heat dissipation fins 22 and dissipate it through the heat dissipation grooves 24, thereby further shortening the cooling time.

[0026] Through the above steps, compared with the mold cooled only by cooling water, the present scheme greatly increases the contact area and time of the cooling water and the mold wall surface through the spiral cooling channel 8, thereby realizing more efficient heat exchange and more remarkable cooling effect, and through the synergistic effect of the fan 23 and the heat dissipation fins 22, the heat dissipation of the mold is further accelerated, thereby effectively shortening the molding cycle, improving the production efficiency and solving the problem of long cooling time and low production efficiency caused by the simple straight-through type cooling water channel layout of the traditional plastic mold.

[0027] The embodiment of the utility model has been explained in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A plastic mold with cooling structure, comprising a mold body, the mold body being provided with a demolding structure and the mold body being composed of an upper mold (1) and a lower mold (2); characterized in that: The left and right ends of the lower mold (2) are integrally connected with the outer edge (3), the upper end of the outer edge (3) is fixedly connected with the sliding rod (4), the upper end of the sliding rod (4) is fixedly connected with the top plate (5), the lower end of the top plate (5) is provided with a hydraulic cylinder (6) for driving the upper mold (1) to move, the power output end of the hydraulic cylinder (6) is provided with the upper mold (1), the left and right ends of the upper mold (1) are provided with the positioning ring (7), the positioning ring (7) is slidably connected to the outer wall of the sliding rod (4), the upper mold (1) and the lower mold (2) are both provided with the spiral cooling channel (8), the water inlet of the cooling channel (8) is provided with the water inlet connector (9), the water outlet of the cooling channel (8) is provided with the water outlet connector (10), the water inlet connector (9) and the water outlet connector (10) are connected with the cold water machine (11) through the connecting structure, the upper end of the upper mold (1) is provided with the injection molding pipe (12), and the lower end of the lower mold (2) is provided with the air cooling heat dissipation module.

2. The plastic mold with a cooling structure according to claim 1, characterized by: The connecting structure comprises a water inlet hose (13), the water inlet connector (9) of the upper mold (1) and the lower mold (2) is provided with the water inlet hose (13), the water outlet connector (10) of the upper mold (1) and the lower mold (2) is provided with the water outlet hose (14), the water inlet hose (13) is connected with the water outlet of the cold water machine (11) through the No. one three-way pipe (15), and the water outlet hose (14) is connected with the water inlet of the cold water machine (11) through the No. two three-way pipe (16).

3. The plastic mold with cooling structure according to claim 2, characterized in that: The pipe opening of the water inlet hose (13) and the water outlet hose (14) is integrally fixedly connected with the convex ring (17), the outer wall of the convex ring (17) is provided with external threads, the inner wall of the water inlet connector (9) and the water outlet connector (10) is provided with internal threads matched with the external threads, the water inlet hose (13) is threadedly connected with the water inlet connector (9), and the water outlet hose (14) is threadedly connected with the water outlet connector (10).

4. The plastic mold with cooling structure according to claim 3, characterized in that: The pipe opening of the water inlet connector (9) and the water outlet connector (10) is provided with the annular groove (19), and the pipe opening of the water inlet hose (13) and the water outlet hose (14) is provided with the sealing ring (18) matched with the annular groove (19), and the sealing ring (18) is embedded in the annular groove (19).

5. The plastic mold with cooling structure according to claim 4, characterized in that: The air cooling heat dissipation module comprises a base (20), the lower end of the lower mold (2) is fixedly connected with the base (20), the base (20) is provided with a cavity (21), the lower end of the lower mold (2) is provided with the heat dissipation fin (22) located in the cavity (21), and the bottom of the cavity (21) is provided with the fan (23) with an internal power supply.

6. The plastic mold with cooling structure according to claim 5, characterized in that: The outer wall of the base (20) is provided with the heat dissipation groove (24) penetrating through, and the heat dissipation groove (24) is distributed along the vertical direction of the base (20).

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