Plastic injection molding machine cooling device based on circulation loop

Abstract

The utility model relates to the technical field of injection molding cooling, in particular to a plastic injection molding machine cooling device based on a circulation loop, which mainly comprises a supporting plate, an injection mold forming block is arranged on one side of the top end of the supporting plate, and a circulation water tank is arranged on one side, far away from the injection mold forming block, of the top end of the supporting plate. And the cooling box is arranged in the middle of the top end of the circulating water tank, refrigeration pieces are installed at the bottom of the inner side of the cooling box, a bent connecting pipe is arranged in the middle of the inner side of the cooling box, and the heat exchange plate is arranged at the top end of the injection mold forming block. According to the plastic injection molding machine cooling device based on the circulation loop, in the cooling process, a circulating water medium in a bent connecting pipe is cooled through the cooling box, a refrigeration sheet makes contact with the bent connecting pipe for heat exchange, and blowing is conducted in a ventilation calandria, so that the air cooling effect is improved, and the cooling effect of internal water can be further improved; the subsequent injection molding cooling effect is prevented from being influenced, and the product processing efficiency is ensured.

Description

Technical Field

[0001] This utility model relates to the field of injection molding cooling technology, specifically a cooling device for a plastic injection molding machine based on a circulation loop. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. During the injection molding process, a cooling device is needed to cool the equipment and shorten the molding time of the plastic products.

[0003] Chinese patent publication number CN221365702U discloses a rapid cooling device for a plastic injection molding machine. This prior art involves injecting water into the cooling chambers of the molding mold and the injection mold after injection molding, thereby cooling the molding mold and the injection mold and rapidly cooling the product inside. The water injection pipe delivers cold water to the cooling chambers of the molding mold and the injection mold respectively, and then outputs it from the return water pipe, thus forming a cooling circuit and achieving the effect of rapid cooling molding.

[0004] The aforementioned equipment cools the mold forming parts through the circulation of water during use. However, the effect of reducing the temperature of the return water pipe by room temperature during the recycling process is relatively low. As the usage time increases, the cooling effect will decrease, thereby increasing the cooling time of subsequent products and reducing the efficiency of use. This needs to be optimized and improved. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for a plastic injection molding machine based on a circulating loop, in order to solve the problem mentioned in the background art where the return water pipe has a poor cooling effect at room temperature, which affects the subsequent cooling effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for a plastic injection molding machine based on a circulating loop, comprising: a support plate, wherein an injection mold forming block is disposed on one side of the top of the support plate, and a circulating water tank is disposed on the side of the top of the support plate away from the injection mold forming block; and further comprising an accelerated cooling component and an auxiliary cooling component.

[0007] The accelerated cooling component includes a cooling box located at the top center of the circulating water tank, with cooling fins installed on the bottom inner side of the cooling box. A bent connecting pipe is provided at the center inner side of the cooling box. The accelerated cooling component is used for accelerated cooling of the circulating water inside the circulating water tank. The auxiliary cooling component includes a heat exchange plate located at the top of the injection mold forming block, with a support frame at the top of the heat exchange plate and a toothed plate at the top of the support frame. The auxiliary cooling component is used for auxiliary heat exchange during the forming of the injection mold forming block.

[0008] Preferably, both ends of the outer side of the circulating water tank are connected to circulation pipes, and the other end of the circulation pipes is connected to the injection mold forming block.

[0009] Preferably, a partition plate is connected to the middle of the inner side of the circulating water tank, and a drain pipe is connected to the bottom rear side of the circulating water tank, while a water injection pipe is connected to the top rear side of the circulating water tank.

[0010] Preferably, a transfer pump is installed at the top center of the circulating water tank, the bent pipe is connected to the top of the transfer pump, and a connecting pipe is connected to one side of the bent pipe.

[0011] Preferably, a fixed mounting bracket is installed at the bottom of the cooling box, which is used for fixed support of the cooling box.

[0012] Preferably, a fan is installed on the inner top wall of the cooling box, and a ventilation duct is connected to the front end of the cooling box.

[0013] Preferably, the heat exchange plate is fixedly connected to the injection mold forming block, and the heat exchange plate is welded to the support frame.

[0014] Preferably, the toothed plate has multiple square grooves inside, which are used to increase the outer surface area of ​​the toothed plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention improves the cooling effect of the internal water by cooling the circulating water medium inside the bent pipe through a cooling box during the cooling process, exchanging heat with the cooling fins in contact with the bent pipe, and improving the air cooling effect by blowing air inside the ventilation pipe. This further enhances the cooling effect of the internal water, avoids affecting the subsequent injection molding cooling effect, and ensures product processing efficiency.

[0017] Based on water circulation heat exchange, heat exchange plates are connected to the injection molded blocks of the heat exchange plates for contact heat dissipation, and the heat is transferred to the toothed plates. By increasing the outer surface area of ​​the toothed plates, the heat dissipation effect of the equipment can be improved, thereby increasing the efficiency of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention from another perspective;

[0020] Figure 3 This is a schematic diagram of a partially separated three-dimensional structure of the accelerated cooling component of this utility model;

[0021] Figure 4This is a schematic diagram of the partially separated three-dimensional structure of the auxiliary cooling component of this utility model.

[0022] In the diagram: 1. Support plate; 2. Injection mold forming block; 3. Circulating water tank; 4. Circulation pipe; 5. Divider plate; 6. Drain pipe; 7. Water injection pipe; 8. Transfer pump; 9. Cooling box; 10. Connecting pipe; 11. Fixed mounting bracket; 12. Bending pipe; 13. Refrigeration element; 14. Fan; 15. Ventilation duct; 16. Heat exchange plate; 17. Support frame; 18. Toothed plate. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figure 1 - Figure 4 As shown, this application provides a plastic injection molding machine cooling device based on a circulation loop, including: a support plate 1, an injection mold forming block 2 is provided on one side of the top of the support plate 1, and a circulating water tank 3 is provided on the side of the top of the support plate 1 away from the injection mold forming block 2.

[0026] The accelerated cooling component includes a cooling box 9, which is located at the top center of the circulating water tank 3. A cooling plate 13 is installed on the bottom inner side of the cooling box 9, and a bent pipe 12 is provided in the middle inner side of the cooling box 9. The accelerated cooling component is used for accelerated cooling of the circulating water inside the circulating water tank 3.

[0027] Specifically, such as Figure 1 As shown, both ends of the outer side of the circulating water tank 3 are connected to the circulating pipes 4, and the other end of the circulating pipes 4 is connected to the injection mold forming block 2. The injection mold forming block 2 has a cooling chamber inside, and both ends are connected to the circulating water tank 3 through the circulating pipes 4 to form a water circulation heat exchange.

[0028] Specifically, such as Figure 2As shown, a partition plate 5 is connected to the middle of the inner side of the circulating water tank 3, and a drain pipe 6 is connected to the bottom rear side of the circulating water tank 3. A water injection pipe 7 is connected to the top rear side of the circulating water tank 3. The partition plate 5 is used to divide the hot and cold water areas inside the circulating water tank 3, and the drain pipe 6 and the water injection pipe 7 are used for the replacement of the internal water medium.

[0029] Specifically, such as Figure 2 As shown, a transfer pump 8 is installed at the top center of the circulating water tank 3. A bent pipe 12 is connected to the top of the transfer pump 8, and a connecting pipe 10 is connected to one side of the bent pipe 12. The transfer pump 8 is used for the circulation of water inside the circulating water tank 3, and the flow rate of the water is increased by the transfer.

[0030] Specifically, such as Figure 3 As shown, a fixed mounting bracket 11 is installed at the bottom of the cooling box 9. The fixed mounting bracket 11 is used for fixed support of the cooling box 9, which facilitates the cooling box 9 to stably cool the circulating water.

[0031] Specifically, such as Figure 3 As shown, a fan 14 is installed on the inner top wall of the cooling box 9, and a ventilation pipe 15 is connected to the front end of the cooling box 9. The interior of the cooling box 9 is arc-shaped, which can reverse the air entering through the ventilation pipe 15, increase the duration of air cooling, and improve the cooling effect.

[0032] The auxiliary cooling assembly includes a heat exchange plate 16, which is disposed at the top of the injection mold forming block 2. A support frame 17 is disposed at the top of the heat exchange plate 16, and a toothed plate 18 is disposed at the top of the support frame 17. The auxiliary cooling assembly is used for auxiliary heat exchange during the forming of the injection mold forming block 2.

[0033] Specifically, such as Figure 4 As shown, the heat exchange plate 16 is fixedly connected to the injection mold forming block 2, and the heat exchange plate 16 is welded to the support frame 17. The toothed plate 18 has multiple square grooves inside. The square grooves are used to increase the outer surface area of ​​the toothed plate 18, and can also exchange heat through the air discharged by the ventilation pipe 15 to improve the cooling effect.

[0034] In this embodiment: During the cooling process, the circulating water medium inside the bent pipe 12 is cooled by the cooling box 9, the cooling plate 13 contacts the bent pipe 12 for heat exchange, the ventilation pipe 15 blows air inside to improve the air cooling effect, which can further improve the cooling effect of the internal water, and the heat exchange plate 16 is connected to the injection mold forming block 2 for contact heat dissipation, and the heat is transferred to the toothed plate 18. By increasing the outer surface area of ​​the toothed plate 18, the heat dissipation effect of the equipment is improved.

[0035] Specifically, the solution is as follows: During use, the injection molding block 2 molds the injection material, and then the water circulates and exchanges heat through the connection of the circulating water tank 3 and the circulating pipe 4. The water transmission efficiency is improved by the connection of the transfer pump 8 and the connecting pipe 10. The partition plate 5 blocks the circulating water tank 3 to prevent the water after heat exchange from mixing with the water after cooling and affecting the subsequent heat exchange effect. During the heat exchange process, the interior of the cooling box 9 is curved, which can reverse the air entering through the ventilation pipe 15, increase the duration of air cooling, and improve the cooling effect. At the same time, the cooling plate 13 contacts the bent pipe 12 for heat exchange, increasing the heat exchange effect and accelerating the cooling of the water. The air discharged through the ventilation pipe 15 will carry away some of the heat on the toothed plate 18. The heat exchange plate 16, the support frame 17, and the toothed plate 18 are all copper products, which have better thermal conductivity and further improve the heat exchange effect.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cooling device for a plastic injection molding machine based on a circulating loop, comprising: A support plate (1), wherein an injection mold forming block (2) is provided on one side of the top end of the support plate (1), and a circulating water tank (3) is provided on the side of the top end of the support plate (1) away from the injection mold forming block (2), characterized in that it further includes: The accelerated cooling component includes a cooling box (9), which is located at the top center of the circulating water tank (3), and a cooling plate (13) is installed on the bottom inner side of the cooling box (9). A bent pipe (12) is provided in the middle inner side of the cooling box (9). The accelerated cooling component is used for accelerated cooling of the circulating water inside the circulating water tank (3). An auxiliary cooling assembly includes a heat exchange plate (16) disposed at the top of the injection mold forming block (2), and a support frame (17) is disposed at the top of the heat exchange plate (16), and a toothed plate (18) is disposed at the top of the support frame (17). The auxiliary cooling assembly is used for auxiliary heat exchange during the forming of the injection mold forming block (2).

2. The cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, Both ends of the circulating water tank (3) are connected to a circulation pipe (4), and the other end of the circulation pipe (4) is connected to the injection mold forming block (2).

3. The cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, A partition plate (5) is connected to the middle of the inner side of the circulating water tank (3), and a drain pipe (6) is connected to the bottom rear side of the circulating water tank (3). A water injection pipe (7) is connected to the top rear side of the circulating water tank (3).

4. A cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, A transfer pump (8) is installed at the top center of the circulating water tank (3), and the bent pipe (12) is connected to the top of the transfer pump (8), and a connecting pipe (10) is connected to one side of the bent pipe (12).

5. A cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, A fixed mounting bracket (11) is installed at the bottom of the cooling box (9), and the fixed mounting bracket (11) is used for the fixed support of the cooling box (9).

6. A cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, A fan (14) is installed on the inner top wall of the cooling box (9), and a ventilation pipe (15) is connected to the front end of the cooling box (9).

7. A cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, The heat exchange plate (16) is fixedly connected to the injection mold forming block (2), and the heat exchange plate (16) is welded to the support frame (17).

8. A cooling device for a plastic injection molding machine based on a circulating loop according to claim 1, characterized in that, The toothed plate (18) has multiple square grooves inside, which are used to increase the outer surface area of ​​the toothed plate (18).

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