Rapid and continuous cooling device for injection molded part

Abstract

The utility model discloses a rapid and continuous cooling device for injection molding parts, and belongs to the technical field of injection molding part processing equipment. Comprising a workbench and a support, a lower die is fixedly arranged on the workbench, an electric telescopic rod is arranged in the support, and the working end of the electric telescopic rod is fixedly connected with an upper die; a cooling groove is formed in the lower mold, the cooling box is arranged on one side of the workbench, an outflow pipe is output from the cooling box, and the outflow pipe communicates with the cooling groove; a return pipe is connected in the cooling tank, and the return pipe is communicated with the cooling box; a groove is formed in the upper mold, and a cooling hole communicated with the groove is formed in the bottom of the upper mold; the blower is arranged on the side face of the workbench, and the working end of the blower communicates with the groove. A sealing assembly for sealing the cooling hole is arranged in the groove, and the sealing assembly is arranged in the groove in a sliding mode through a lifting structure. The cooling holes are formed in the upper mold, the injection molding part can be rapidly and continuously cooled when the mold is opened and the injection molding part is taken out, and the cooling effect is improved.

Description

Technical Field

[0001] This utility model provides a rapid and continuous cooling device for injection molded parts, belonging to the technical field of injection molding equipment. Background Technology

[0002] Injection molding, as a highly efficient and widely used plastic processing method, occupies an important position in modern industrial production. It can heat and melt plastic raw materials and inject them into the mold cavity to quickly form plastic products with various complex shapes and precise dimensions, and is widely used in many fields such as automobiles, electronics, home appliances, and medical devices.

[0003] In the injection molding process of box-shaped parts, the cooling stage is a crucial step. Traditional injection molding cooling methods mainly rely on cooling water channels or cooling tanks inside the mold. The circulating flow of coolant removes heat, thereby accelerating the solidification and molding of the molten plastic. After mold opening, during ejection and part removal operations, the temperature of the molded injection part is still relatively high, requiring continued cooling. However, traditional injection molding cooling systems cool the injection part while the mold is closed. Once the mold is opened, the cooling process is often difficult to continue quickly and continuously. It is often necessary to transfer the injection part to a new cooling area for continued cooling after opening the mold and removing the part, which is cumbersome. Utility Model Content

[0004] The technical problem this invention aims to solve is that when opening the mold and removing the injection molded part, it is impossible to continuously and rapidly cool the injection molded part using the cooling system inside the mold.

[0005] To solve the above problems, the proposed technical solution is as follows: a rapid and continuous cooling device for injection molded parts, comprising a worktable and a support, a lower mold fixedly mounted on the worktable, a gate being provided inside the lower mold, an electric telescopic rod being mounted inside the support, and the working end of the electric telescopic rod being fixedly connected to an upper mold corresponding to the lower mold; further comprising:

[0006] The cooling box has a cooling tank inside the lower mold and is located on one side of the workbench. The cooling box has an outlet pipe that is connected to the cooling tank. The cooling tank has a return pipe that is connected to the cooling box.

[0007] The upper mold has a groove and several cooling holes communicating with the groove at its bottom. The blower is located on the side of the worktable and its working end communicates with the groove. A sealing component is provided in the groove to close the cooling holes, and the sealing component is slidably located in the groove via a lifting structure.

[0008] As an improvement, a water pump is installed inside the cooling box, and the outlet pipe is connected to the working end of the water pump; water is stored inside the cooling box, and a thermometer is installed on the inner wall of the cooling box.

[0009] As an improvement, the cooling holes are evenly distributed at the bottom of the upper mold, and the positions of the cooling holes correspond to those of the lower mold cavity.

[0010] As an improvement, the sealing assembly includes a sealing plate and a blocking block. The sealing plate is slidably disposed in the groove, and the blocking block is fixedly connected to the bottom of the sealing plate and is located in the cooling hole.

[0011] As an improvement, the number of the blocking blocks is the same as the number of cooling holes, and the bottom of the blocking blocks is flush with the bottom of the upper mold.

[0012] As an improvement, the lifting structure includes a motor, a lead screw, and a limiting rod. The motor is mounted on the upper mold, the lead screw is rotatably mounted in the groove, and the lead screw is fixedly connected to the output shaft of the motor. The sealing plate is threadedly connected to the lead screw. The limiting rod is fixedly mounted in the groove, and the sealing plate is slidably sleeved on the limiting rod.

[0013] The beneficial effects of this utility model are:

[0014] The cooling box has an outlet pipe, and a return pipe connected to the cooling box. By setting up the cooling box, outlet pipe, and return pipe, the cavity inside the lower mold can be circulated and cooled, thereby accelerating the injection molding speed. The bottom of the upper mold has several cooling holes connected to the groove. By setting cooling holes at the bottom of the upper mold, when the mold is opened and the injection molded part is removed, the hot injection molded part can be continuously cooled by the blower and cooling holes, achieving a rapid and continuous cooling effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of a rapid and continuous cooling device for injection molded parts according to the present invention.

[0016] Figure 2 This is a perspective view of a rapid and continuous cooling device for injection molded parts according to this utility model.

[0017] Figure 3 This is a cross-sectional view of the lower mold of a rapid and continuous cooling device for injection molded parts according to this utility model.

[0018] Figure 4 This is an exploded view showing the connection between the upper and lower molds of a rapid and continuous cooling device for injection molded parts according to this utility model.

[0019] Figure 5 This is an internal structural diagram of the cooling box of a rapid and continuous cooling device for injection molded parts according to this utility model.

[0020] 1. Workbench; 2. Blower; 3. Support; 4. Electric telescopic rod; 5. Upper mold; 6. Cooling box; 7. Lower mold; 8. Outlet pipe; 9. Return pipe; 10. Cooling tank; 11. Groove; 12. Limiting rod; 13. Sealing plate; 14. Motor; 15. Lead screw; 16. Blocking block; 17. Cooling hole; 18. Water pump; 19. Thermometer. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] according to Figure 1-5 As shown: This utility model provides a rapid and continuous cooling device for injection molded parts: including a workbench 1 and a support 3, a lower mold 7 is fixedly mounted on the workbench 1, and a gate is opened in the lower mold 7; an electric telescopic rod 4 is installed in the support 3, and the working end of the electric telescopic rod 4 is fixedly connected to an upper mold 5 corresponding to the lower mold 7; it also includes:

[0023] The cooling box 6 has a cooling tank 10 inside the lower mold 7. The cooling box 6 is located on one side of the workbench 1. The cooling box 6 has an outlet pipe 8, which is connected to the cooling tank 10. The cooling tank 10 is connected to a return pipe 9, which is connected to the cooling box 6.

[0024] like Figure 5 As shown, a water pump 18 is installed inside the cooling tank 6, and the outlet pipe 8 is connected to the working end of the water pump 18, which can provide power for the circulation of water. The cooling tank 6 stores water, and a thermometer 19 is installed on the inner wall of the cooling tank 6, which can monitor the water temperature in the cooling tank 6 in real time, so as to replace the water when the water temperature is too high, thereby maintaining the cooling effect.

[0025] A blower 2 and cooling holes 17; a groove 11 is provided inside the upper mold 5, and several cooling holes 17 communicating with the groove 11 are provided at the bottom of the upper mold 5; for example Figure 3 , 4 As shown, the cooling holes 17 are evenly distributed at the bottom of the upper mold 5, and the cooling holes 17 correspond to the positions of the cavities of the lower mold 7, which can ensure the cooling effect.

[0026] The blower 2 is located on the side of the workbench 1, and the working end of the blower 2 is connected to the groove 11; a sealing component is provided in the groove 11 to close the cooling hole 17, and the sealing component is slidably located in the groove 11 through a lifting structure.

[0027] like Figure 4As shown, the sealing assembly includes a sealing plate 13 and a blocking block 16. The sealing plate 13 is slidably disposed within the groove 11, and the blocking block 16 is fixedly connected below the sealing plate 13 and located within the cooling hole 17. The number of blocking blocks 16 is the same as the number of cooling holes 17, and the bottom of the blocking block 16 is flush with the bottom of the upper mold 5. The sealing plate 13 and the blocking block 16 can seal the cooling hole 17, preventing molten plastic in the cavity from entering the groove 11, and the arrangement of the blocking block 16 ensures the flatness of the area below the upper mold 5.

[0028] like Figure 4 As shown, the lifting structure includes a motor 14, a lead screw 15, and a limiting rod 12. The motor 14 is mounted on the upper mold 5. The lead screw 15 is rotatably mounted in the groove 11 and is fixedly connected to the output shaft of the motor 14. A sealing plate 13 is threadedly connected to the lead screw 15. The limiting rod 12 is fixedly mounted in the groove 11, and the sealing plate 13 is slidably sleeved on the limiting rod 12. The limiting rod 12 restricts the rotation of the sealing plate 13, thereby converting the rotation of the lead screw 15 into the movement of the sealing plate 13.

[0029] The principle of this utility model

[0030] like Figure 1 , 2 As shown, when using this application, the electric telescopic rod 4 is used to assemble the upper mold 5 and the lower mold 7 to form a complete mold. Molten plastic material is added into the mold cavity through the gate. After the addition is completed, the water pump 18 is started to transport water from the cooling tank 6 through the outlet pipe 8 to the cooling tank 10. After heat exchange with the plastic in the cavity, the water flows back into the cooling tank 6 through the return pipe 9, thus completing the cooling cycle. When the injection molded part in the cavity solidifies, the mold needs to be opened; the electric telescopic rod 4 is started to move the upper mold 5 upward, separating the upper mold 5 from the lower mold 7. At the same time, as Figure 3 , 4 As shown, the motor 14 is started, causing the sealing plate 13 to move the blocking block 16 upward, and the blocking block 16 disengages from the cooling hole 17; the blower 2 is started, so that air enters the cooling hole 17 from the groove 11, thereby continuously cooling the injection molded part. When the injection molded part is removed, as the injection molded part separates from the mold, the cooling groove 10 can no longer exchange heat with the injection molded part, but the cooling hole 17 can continue to cool the injection molded part, thus improving the cooling effect.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A kind of injection molding piece quick continuous cooling device, including workbench (1) and support (3), workbench (1) is fixedly provided with lower mould (7), lower mould (7) is opened in gate, electric telescopic rod (4) is arranged in support (3), and the working end of electric telescopic rod (4) is fixedly connected with the upper mould (5) corresponding with lower mould (7);Its characterized in that, Also include: Cooling box (6), the lower mold (7) is provided with cooling groove (10), cooling box (6) is arranged on the side of workbench (1), and the outlet pipe (8) is output on cooling box (6), and the outlet pipe (8) is communicated with cooling groove (10);The return pipe (9) is connected in the cooling groove (10), and the return pipe (9) is communicated with cooling box (6); Hair dryer (2) and cooling hole (17);The upper mold (5) is provided with recess (11), and the upper mold (5) bottom is provided with a plurality of cooling holes (17) communicated with recess (11);The hair dryer (2) is arranged on the side of workbench (1), and the working end of hair dryer (2) is communicated with recess (11);The recess (11) is provided with sealing assembly for closing cooling hole (17), and sealing assembly is slidably arranged in recess (11) by lifting structure.

2. A device for rapid and continuous cooling of injection moulded parts according to claim 1, characterised in that: The water pump (18) is arranged in the cooling box (6), and the working end of the outlet pipe (8) is connected with the water pump (18);The cooling box (6) stores water, and the inner wall of the cooling box (6) is provided with thermometer (19).

3. A device for rapid and continuous cooling of injection molded parts according to claim 1, characterized in that: The cooling hole (17) is uniformly arranged on the bottom of the upper mold (5), and the cooling hole (17) corresponds to the position of the cavity of the lower mold (7).

4. The device for rapid and continuous cooling of injection-molded parts according to claim 1, characterized in that: The sealing assembly includes sealing plate (13) and blocking block (16), the sealing plate (13) is slidably arranged in the recess (11), the blocking block (16) is fixedly connected below the sealing plate (13), and the blocking block (16) is located in the cooling hole (17).

5. A device for rapid and continuous cooling of injection moulded parts according to claim 4, characterised in that: The number of blocking block (16) is same with the number of cooling hole (17), and the bottom of blocking block (16) is flush with the bottom of upper mold (5).

6. A device for rapid and continuous cooling of injection moulded parts according to claim 5, characterised in that: The lifting structure includes motor (14), lead screw (15) and limiting rod (12), the motor (14) is arranged on the upper mold (5), the lead screw (15) is rotatably arranged in the recess (11), and the lead screw (15) is fixedly connected to the output shaft of the motor (14);The sealing plate (13) is threadedly connected to the lead screw (15);The limiting rod (12) is fixedly arranged in the recess (11), and the sealing plate (13) is slidably sleeved on the limiting rod (12).

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