Injection mold with built-in cooling mechanism

Abstract

The utility model provides an injection mold with a built-in cooling mechanism. The injection mold with the built-in cooling mechanism comprises a workbench, a supporting column is arranged on the workbench, a top plate is arranged on the supporting column, an air cylinder is arranged on the top plate, a connecting plate is arranged at the output end of the air cylinder, and an upper mold base is arranged on the lower portion of the connecting plate. A lower die base and a heat dissipation opening are arranged on the workbench, a cooling device is arranged in the workbench, the cooling device comprises a cooling water tank, a water pump, a water supply pipeline, a cooling pipeline, a heat dissipation box and a backflow pipe, and the cooling water tank and the heat dissipation box are located on the two sides of the workbench. According to the injection mold with the built-in cooling mechanism provided by the utility model, circulating cooling water starts from the cooling water tank, cools the lower mold base from the lower part of the lower mold base when passing through the cooling pipeline, and flows into the heat dissipation box for heat dissipation and cooling after the temperature rises, so that the water cooling effect is prevented from becoming poor due to the temperature rise of the cooling water after long-time work; the workpiece forming speed is reduced; and the production efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a built-in cooling mechanism. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] At present, when using injection molds to produce workpieces, circulating water flow is often used to cool the injected raw materials to speed up the molding of the raw materials. However, after working for a long time, the temperature of the circulating cooling water will gradually increase, reducing the water cooling effect and slowing down the molding of the raw materials.

[0004] Therefore, it is necessary to provide an injection mold with a built-in cooling mechanism to solve the above technical problems. Utility Model Content

[0005] The utility model provides an injection mold with a built-in cooling mechanism, which solves the problem that after long-term use, the temperature of circulating cooling water gradually rises, the water cooling effect is reduced, and the molding of raw materials is slow.

[0006] In order to solve the above technical problems, the utility model provides an injection mold with a built-in cooling mechanism, including: a workbench, a support column is arranged on the workbench, a top plate is arranged on the support column, a cylinder is arranged on the top plate, a connecting plate is arranged at the output end of the cylinder, an upper mold base is arranged at the lower part of the connecting plate, a lower mold base and a heat dissipation port are arranged on the workbench, a cooling device is arranged inside the workbench, the cooling device includes a cooling water tank, a water pump, a water supply pipe, a cooling pipe, a heat dissipation box and a return pipe, and the cooling water tank and the heat dissipation box are located on both sides of the workbench.

[0007] Preferably, both ends of the cooling pipe are connected to a cooling water tank and a heat sink, the return pipe is located below the heat sink, and the other end of the return pipe is connected to the cooling water tank.

[0008] Preferably, the cooling pipe is serpentine-shaped, the cooling pipe is located directly below the lower die base, and cooling fins are arranged inside the heat dissipation port, and the cooling fins are evenly distributed directly below the lower die base.

[0009] Preferably, a positioning mechanism is provided on the workbench, and the positioning mechanism includes a positioning column and a positioning hole, the positioning column is arranged on the lower surface of the connecting plate, the positioning hole is located on the upper surface of the workbench, the bottom of the positioning hole is fixedly connected with a spring, and the other end of the spring is fixedly connected with a contact plate.

[0010] Preferably, the cooling water tank comprises a box body, the upper portion of the box body is provided with a water inlet, and the lower portion of the box body is provided with a water outlet.

[0011] Preferably, the heat dissipation box comprises a cooling pool, and a heat dissipation channel is arranged at one end of the cooling pool close to the outside of the workbench, and a heat dissipation fan is arranged on the heat dissipation channel.

[0012] Preferably, a water temperature detector is provided at the lower part of the cooling pool, the water temperature detector is communicated with the interior of the cooling pool, and a solenoid valve is provided at the portion where the cooling pool is connected to the reflux pipe.

[0013] Compared with the related art, the injection mold with a built-in cooling mechanism provided by the utility model has the following beneficial effects:

[0014] The utility model provides an injection mold with a built-in cooling mechanism. The circulating cooling water starts from a cooling water tank and cools the lower mold base from below when passing through a cooling pipe. At the same time, the temperature rises and then flows into a heat dissipation box for heat dissipation and cooling, thereby preventing the temperature of the cooling water from rising after long-term work, causing the water cooling effect to deteriorate, reducing the workpiece molding speed and affecting the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of an injection mold with a built-in cooling mechanism provided by the utility model;

[0016] Figure 2 This is a front view structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the positioning mechanism in the utility model;

[0018] Figure 4 This is a schematic diagram of the structure inside the heat dissipation port of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the cooling water tank and cooling pipeline in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the heat dissipation box in the utility model.

[0021] Numbers in the figure: 1. workbench, 2. support column, 3. top plate, 4. cylinder, 5. connecting plate, 6. upper mold base, 7. injection port, 8. positioning mechanism, 81. positioning column, 82. positioning hole, 83. spring, 84. contact plate, 9. lower mold base, 10. heat dissipation port, 11. heat dissipation fin, 12. cooling water tank, 121. box body, 122. water inlet, 123. water outlet, 13. water pump, 14. water supply pipe, 15. cooling pipe, 16. heat dissipation box, 161. cooling pool, 162. heat dissipation channel, 163. cooling fan, 17. water temperature detector, 18. reflux pipe, 19. solenoid valve. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of an injection mold with a built-in cooling mechanism provided by the utility model;

[0024] Figure 2 This is a front view structural schematic diagram of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the positioning mechanism in the utility model;

[0026] Figure 4 This is a schematic diagram of the structure inside the heat dissipation port of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure of the cooling water tank and cooling pipeline in the utility model;

[0028] Figure 6 It is a structural schematic diagram of the heat dissipation box in the utility model.

[0029] An injection mold with a built-in cooling mechanism includes: a workbench 1, a support column 2 is arranged on the workbench 1, a top plate 3 is arranged on the support column 2, a cylinder 4 is arranged on the top plate 3, a connecting plate 5 is arranged at the output end of the cylinder 4, an upper mold base 6 is arranged at the lower part of the connecting plate 5, a lower mold base 9 and a heat dissipation port 10 are arranged on the workbench 1, a cooling device is arranged inside the workbench 1, and the cooling device includes a cooling water tank 12, a water pump 13, a water supply pipe 14, a cooling pipe 15, a heat dissipation box 16 and a return pipe 18, and the cooling water tank 12 and the heat dissipation box 16 are located on both sides of the workbench 1.

[0030] Start the cylinder 4, lower the connecting plate 5 and the upper mold base 6 to the position of the lower mold base 9 for injection molding. After the molding is completed, start the water pump 13, and transport the cooling water from the cooling water tank 12 to the cooling pipe 15 through the water supply pipe to cool the lower mold base 9. Then the cooling water enters the heat dissipation box 16 for heat dissipation and cooling. After the cooling is completed, the cooling water is transported back to the cooling water tank 12 through the reflux pipe 18.

[0031] Two ends of the cooling pipe 15 are connected to the cooling water tank 12 and the heat sink 16 . The return pipe 18 is located below the heat sink 16 , and the other end of the return pipe 18 is connected to the cooling water tank 12 .

[0032] The cooling water starts from the cooling water tank 12 , passes through the cooling pipe 15 to cool the lower die base 9 , and then enters the heat sink 16 . After being cooled in the heat sink 16 , the cooling water flows back to the cooling water tank 12 through the reflux pipe 18 .

[0033] The cooling pipe 15 is serpentine-shaped and is located directly below the lower die base 9 . Heat dissipation fins 11 are disposed inside the heat dissipation opening 10 and are evenly distributed directly below the lower die base 9 .

[0034] The heat dissipation fins 11 increase the heat dissipation effect and accelerate the heat dissipation of the lower mold base 9 from the heat dissipation port 10 to the outside.

[0035] A positioning mechanism 8 is provided on the workbench 1, and the positioning mechanism 8 includes a positioning column 81 and a positioning hole 82. The positioning column 81 is provided on the lower surface of the connecting plate 5, and the positioning hole 82 is located on the upper surface of the workbench 1. A spring 83 is fixedly connected to the bottom of the positioning hole 82, and the other end of the spring 83 is fixedly connected to a contact plate 84.

[0036] When the upper mold base 6 descends for injection molding, the positioning column 81 enters the positioning hole 82 and contacts the contact plate 84, and the spring 83 is compressed. After the injection molding is completed, the positioning column 81 withdraws from the positioning hole 82, and the spring 83 rebounds to increase the reset speed.

[0037] The cooling water tank 12 includes a tank body 121 . A water inlet 122 is disposed at the top of the tank body 121 , and a water outlet 123 is disposed at the bottom of the tank body 121 .

[0038] Water is added to the box body 121 through the water inlet 122, and the water outlet 123 is used to drain water.

[0039] The heat dissipation box 16 includes a cooling pool 161 . A heat dissipation channel 162 is disposed at one end of the cooling pool 161 close to the outside of the workbench 1 . A heat dissipation fan 163 is disposed on the heat dissipation channel 162 .

[0040] After the water flows through the cooling pipe 15 to cool the lower mold base 9, the temperature rises and flows into the cooling pool 161 from the end of the cooling pipe 15 to dissipate heat and cool down inside. The generated hot steam is discharged from the heat dissipation channel 162 by the heat dissipation fan 163 to accelerate the cooling speed.

[0041] A water temperature detector 17 is disposed at the lower portion of the cooling pool 161 . The water temperature detector 17 is connected to the interior of the cooling pool 161 . A solenoid valve 19 is disposed at a portion where the cooling pool 161 is connected to the reflux pipe 18 .

[0042] When the water temperature detector 17 detects that the water temperature has dropped to a certain level, the solenoid valve 19 is opened to transport the water back to the cooling water tank 12 through the return pipe 18 .

[0043] The working principle of the injection mold with a built-in cooling mechanism provided by the utility model is as follows:

[0044] Start the cylinder 4, lower the connecting plate 5 and the upper mold base 6 to the position of the lower mold base 9 for injection molding. After the molding is completed, start the water pump 13, and transport the cooling water from the cooling water tank 12 to the cooling pipe 15 through the water supply pipe 14 to cool the lower mold base 9. Then the cooling water enters the heat dissipation box 16 for heat dissipation and cooling. After the cooling is completed, the cooling water is transported back to the cooling water tank 12 through the reflux pipe 18.

[0045] Compared with the related art, the injection mold with a built-in cooling mechanism provided by the utility model has the following beneficial effects:

[0046] The circulating cooling water starts from the cooling water tank 12, and cools the lower die base 9 from below when passing through the cooling pipe 15. At the same time, the temperature rises, and then flows into the heat dissipation box 16 for heat dissipation and cooling, so as to prevent the cooling water temperature from rising after long-term work, resulting in poor water cooling effect, reducing the workpiece forming speed and affecting production efficiency.

[0047] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An injection mold with a built-in cooling mechanism, characterized in that: include: A workbench, wherein a support column is arranged on the workbench, a top plate is arranged on the support column, a cylinder is arranged on the top plate, a connecting plate is arranged at the output end of the cylinder, an upper mold base is arranged at the lower part of the connecting plate, a lower mold base and a heat dissipation port are arranged on the workbench, a cooling device is arranged inside the workbench, the cooling device comprises a cooling water tank, a water pump, a water supply pipe, a cooling pipe, a heat dissipation box and a return pipe, and the cooling water tank and the heat dissipation box are located on both sides of the workbench.

2. The injection mold with a built-in cooling mechanism according to claim 1, characterized in that: The two ends of the cooling pipeline are connected to the cooling water tank and the heat sink, the return pipe is located below the heat sink, and the other end of the return pipe is connected to the cooling water tank.

3. The injection mold with a built-in cooling mechanism according to claim 1, characterized in that: The cooling pipe is serpentine-shaped and is located directly below the lower die seat. Heat dissipation fins are arranged inside the heat dissipation port and are evenly distributed directly below the lower die seat.

4. The injection mold with a built-in cooling mechanism according to claim 1, characterized in that: The workbench is provided with a positioning mechanism, which includes a positioning column and a positioning hole. The positioning column is arranged on the lower surface of the connecting plate, and the positioning hole is located on the upper surface of the workbench. The bottom of the positioning hole is fixedly connected with a spring, and the other end of the spring is fixedly connected with a contact plate.

5. The injection mold with a built-in cooling mechanism according to claim 1, characterized in that: The cooling water tank comprises a box body, the upper part of the box body is provided with a water inlet, and the lower part of the box body is provided with a water outlet.

6. The injection mold with a built-in cooling mechanism according to claim 1, characterized in that: The heat dissipation box comprises a cooling pool, one end of the cooling pool close to the outside of the workbench is provided with a heat dissipation channel, and a heat dissipation fan is provided on the heat dissipation channel.

7. The injection mold with a built-in cooling mechanism according to claim 6, characterized in that: A water temperature detector is arranged at the lower part of the cooling pool, and the water temperature detector is communicated with the interior of the cooling pool. A solenoid valve is arranged at the part where the cooling pool is connected to the reflux pipe.

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