Injection mold capable of being rapidly cooled

Abstract

The utility model discloses a quick cooling injection mold, which belongs to the field of injection molds, and comprises an upper mold and a lower mold, the top surface of the lower mold is provided with a mold cavity, a cooling mechanism is arranged in front of the lower mold, and the cooling mechanism comprises a cooling water tank, a first pump body, a filter box, a second pump body, a spray pipe, an atomizing nozzle, a filter frame and a filter screen. According to the arranged cooling mechanism, after cooling water in a cooling water tank is pumped out through a first liquid outlet by a first pump body, the cooling water is conveyed into an S-shaped cooling channel from a cooling liquid inlet through a conveying pipe, and heat can be taken away when the cooling water flows in the S-shaped cooling channel, so that the purpose of water-cooling rapid cooling is achieved; after the cooling water taking away heat is discharged from the cooling liquid outlet and enters the filter box from the second liquid inlet through the liquid return pipe, the filter frame installed in the filter box intercepts and filters impurities such as water scale formed in the cooling water through the filter screen, and the situation that the cooling effect is affected due to the fact that the water scale blocks the S-shaped cooling channel is prevented.

Description

Technical Field

[0001] This utility model relates to the field of injection molds, and in particular to an injection mold with rapid cooling. Background Technology

[0002] PDCPD reaction injection refers to the process of synthesizing polydicyclopentadiene (PDCPD) through reaction injection molding (RIM). This process requires injecting heated and molten material into a mold cavity under high pressure, and then cooling and solidifying it to obtain a molded product. Therefore, injection molds are needed to ensure that the PDCPD material, after being softened by the first heating, plasticizes and flows into the mold cavity, and then cools and solidifies to form a product with a defined shape and size.

[0003] In existing technologies, rapid cooling of injection molds is primarily necessary to control mold temperature and ensure product quality. During injection molding, molten plastic is injected into a high-temperature mold and rapidly cools and solidifies. If the mold temperature is not effectively controlled, uneven cooling of the molten plastic can occur, affecting product dimensional stability and surface quality. A cooling system allows for precise control of the mold temperature, ensuring uniform cooling of the molten plastic within the mold, preventing defects such as warping and deformation, while also improving production efficiency and extending mold lifespan.

[0004] However, current injection molds, when rapidly cooled by water, experience scale buildup (such as rust and mineral deposits) due to the cooling water coming into contact with the mold's inner wall during circulation. This scale can clog cooling channels, reducing the flow rate and velocity of the cooling water, thus diminishing the cooling effect. Utility Model Content

[0005] The main objective of this invention is to provide a rapidly cooling injection mold, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A rapid cooling injection mold includes an upper mold and a lower mold. The top surface of the lower mold has a cavity, and a cooling mechanism is provided in front of the lower mold. The cooling mechanism includes a cooling water tank, a first pump body, a filter box, a second pump body, a spray pipe, an atomizing nozzle, a filter frame, and a filter screen. The input end of the first pump body is fixedly connected to the first outlet at the bottom rear end of the cooling water tank, and the output end of the first pump body is fixedly connected to the coolant inlet on the left side of the front end of the lower mold via a delivery pipe. The second inlet on the top surface of the filter box is fixedly connected to the coolant outlet on the right side of the front end of the lower mold via a return pipe. The input end of the second pump body is fixedly connected to the second outlet at the bottom right side of the filter box, and the output end of the second pump body is fixedly connected to the first inlet at the top right side of the cooling water tank via a connecting pipe. The filter frame is fixedly connected to the inside of the filter box by clips on both sides, and the filter screen is fixedly connected to the bottom surface of the filter frame. The spray pipe is fixedly connected to the top surface of the cooling water tank, and an atomizing nozzle is fixedly connected to the bottom surface of the spray pipe.

[0008] Preferably, a first liquid outlet is fixedly installed at the bottom rear of the cooling water tank, and a first liquid inlet is fixedly installed at the top right side wall of the cooling water tank, with the input end of the first pump body fixedly installed together with the first liquid outlet.

[0009] Preferably, a serpentine cooling channel is provided inside the lower mold and below the mold cavity, and a coolant inlet and a coolant outlet connected by the serpentine cooling channel are fixedly installed on the left and right sides of the front end wall of the conveying pipe, respectively. A conveying pipe is fixedly installed between the coolant inlet and the output end of the first pump body.

[0010] Preferably, a second liquid inlet is fixedly installed on the top surface of the filter box, and a second liquid outlet is fixedly installed on the bottom of the right side wall of the filter box. A return pipe is fixedly installed between the second liquid inlet and the coolant outlet. A cleaning port is opened on the front wall of the filter box, and a set of symmetrical slots are opened on the left and right sides of the inner wall of the cleaning port. A set of symmetrical clips are fixedly installed on the left and right side walls of the filter frame, and the clips are inserted into the slots. A filter screen is fixedly installed on the bottom surface of the filter frame, and a handle is fixedly installed on the front wall of the filter frame.

[0011] Preferably, the input end of the second pump body is fixedly installed together with the second liquid outlet, and a connecting pipe is fixedly installed between the output end of the second pump body and the first liquid inlet.

[0012] Preferably, the spray pipe is fixedly installed on the inner top surface of the cooling water tank and connected to the first liquid inlet, and several atomizing nozzles are also fixedly installed on the bottom surface of the spray pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, the cooling mechanism includes a first pump that draws cooling water from the cooling water tank through a first outlet. The water is then transported through a delivery pipe from the coolant inlet to a serpentine cooling channel. As the cooling water flows through the serpentine channel, it carries away heat, achieving rapid water cooling. The cooled water, having carried away heat, exits from the coolant outlet and enters the filter box through a return pipe from the second inlet. A filter frame installed in the filter box filters out scale and other impurities formed in the cooling water through a filter screen. The filtered cooling water is then drawn out from the second outlet by the second pump and transported back to the cooling water tank through a connecting pipe for recycling. Once inside the cooling water tank, the cooling water directly enters the spray pipe and is finally atomized and sprayed into the tank by atomizing nozzles. This rapidly dissipates heat from the cooling water, preventing the water temperature in the tank from rising during prolonged use. By filtering impurities in the circulating cooling water and treating the cooling water for heat dissipation, the cooling effect is effectively improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the lower mold of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the cooling mechanism of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the cooling water tank of this utility model;

[0019] Figure 5 This is a structural disassembly diagram of the filter box of this utility model.

[0020] In the diagram: 1. Upper mold; 2. Lower mold; 3. Mold cavity; 4. Cooling mechanism; 5. Serpentine cooling channel; 6. Coolant inlet; 7. Coolant outlet; 8. Cooling water tank; 9. First outlet; 10. First inlet; 11. First pump body; 12. Delivery pipe; 13. Filter box; 14. Second inlet; 15. Second outlet; 16. Return pipe; 17. Second pump body; 18. Connecting pipe; 19. Spray pipe; 20. Atomizing nozzle; 21. Cleaning port; 22. Slot; 23. Filter frame; 24. Clip; 25. Filter screen; 26. Handle. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 - Figure 5 As shown, a rapid cooling injection mold includes an upper mold 1 and a lower mold 2. The top surface of the lower mold 2 is provided with a mold cavity 3, and a cooling mechanism 4 is provided in front of the lower mold 2. The cooling mechanism 4 includes a cooling water tank 8, a first pump body 11, a filter box 13, a second pump body 17, a spray pipe 19, an atomizing nozzle 20, a filter frame 23, and a filter screen 25. The input end of the first pump body 11 is fixedly connected to the first liquid outlet 9 at the bottom rear end of the cooling water tank 8, and the output end of the first pump body 11 is fixedly connected to the coolant inlet 6 on the left side of the front end of the lower mold 2 by a delivery pipe 12. The second liquid inlet on the top surface of the filter box 13... A return pipe 16 is fixedly connected between the outlet 14 and the coolant outlet 7 on the right side of the front end of the lower mold 2. The input end of the second pump body 17 is fixedly connected to the second outlet 15 at the bottom right side of the filter box 13. A connecting pipe 18 is fixedly connected between the output end of the second pump body 17 and the first inlet 10 at the top right side of the cooling water tank 8. The filter frame 23 is fixedly connected to the inside of the filter box 13 by the clips 24 on both sides. The filter screen 25 is fixedly connected to the bottom surface of the filter frame 23. The spray pipe 19 is fixedly connected to the top surface of the cooling water tank 8. An atomizing nozzle 20 is fixedly connected to the bottom surface of the spray pipe 19.

[0023] like Figure 3 and Figure 4 As shown, a first liquid outlet 9 is fixedly installed at the bottom rear of the cooling water tank 8, and a first liquid inlet 10 is fixedly installed at the top right side wall of the cooling water tank 8. The input end of the first pump body 11 is fixedly installed together with the first liquid outlet 9. The cooling water in the cooling water tank 8 can be drawn out from the first liquid outlet 9 through the first pump body 11, and the cooling water can be transported back to the cooling water tank 8 for recycling through the first liquid inlet 10.

[0024] like Figure 2 As shown, a serpentine cooling channel 5 is provided inside the lower mold 2 and below the mold cavity 3. Cooling liquid inlet 6 and cooling liquid outlet 7, which are connected to the serpentine cooling channel 5, are fixedly installed on the left and right sides of the front end wall of the conveying pipe 12, respectively. A conveying pipe 12 is fixedly installed between the cooling liquid inlet 6 and the output end of the first pump body 11. After the first pump body 11 pumps the cooling water from the cooling liquid inlet 6 into the serpentine cooling channel 5 through the conveying pipe 12, the cooling water can carry away the heat in the injection mold during the flow of the serpentine cooling channel 5, so as to achieve the purpose of water cooling and rapid cooling.

[0025] like Figure 3 and Figure 5As shown, a second liquid inlet 14 is fixedly installed on the top surface of the filter box 13, and a second liquid outlet 15 is fixedly installed on the bottom of the right side wall of the filter box 13. A return pipe 16 is fixedly installed between the second liquid inlet 14 and the coolant outlet 7. A cleaning port 21 is opened on the front wall of the filter box 13, and a set of vertically symmetrical slots 22 are opened on the left and right sides of the inner wall of the cleaning port 21. A set of vertically symmetrical retaining strips 24 are fixedly installed on the left and right side walls of the filter frame 23, and the retaining strips 24 are inserted into the retaining strips 22. A filter screen 25 is fixedly installed on the bottom surface of the filter frame 23. A handle 26 is fixedly installed on the front wall of 3. After the cooling water flowing in the serpentine cooling channel 5 is discharged through the coolant outlet 7, it will enter the return pipe 16 and enter the filter box 13 through the second inlet 14. When the cooling water enters the filter box 13 and falls to the bottom of the filter box 13, it will pass through the filter frame 23 installed inside by the clip 24. The filter frame 23 will intercept and filter the scale and other impurities formed in the cooling water through the filter screen 25 on the bottom surface of the filter frame 23, thereby avoiding the problem of scale and other impurities entering the serpentine cooling channel 5 and causing blockage, which would affect the cooling effect.

[0026] like Figure 3 As shown, the input end of the second pump body 17 is fixedly installed together with the second outlet 15, and a connecting pipe 18 is fixedly installed between the output end of the second pump body 17 and the first inlet 10. The second pump body 17 can extract the filtered cooling water from the filter box 13 through the second outlet 15, and pump the cooling water back into the cooling water tank 8 from the first inlet 10 through the connecting pipe 18 for recycling.

[0027] like Figure 4 As shown, the spray pipe 19 is fixedly installed on the top surface inside the cooling water tank 8 and connected to the first liquid inlet 10. Several atomizing nozzles 20 are also fixedly installed on the bottom surface of the spray pipe 19. The cooling water pumped into the cooling water tank 8 will directly enter the spray pipe 19 and be atomized and sprayed into the cooling water tank 8 through the atomizing nozzles 20. In this way, most of the heat in the cooling water can be dissipated, avoiding the problem of the cooling water temperature in the cooling water tank 8 rising during long-term use.

[0028] To address the issue of scale buildup clogging the serpentine cooling channel 5, reducing the flow rate and velocity of cooling water, and consequently decreasing the cooling effect, the specific operating principle of this cooling mechanism 4 in conjunction with the injection mold is as follows:

[0029] When the injection mold needs cooling, the input end of the first pump body 11 draws low-temperature cooling water from the cooling water tank 8 through the first outlet 9, and pumps the low-temperature cooling water from the coolant inlet 6 installed on the left side of the front end of the lower mold 2 into the serpentine cooling channel 5 inside the lower mold 2 through the delivery pipe 12 installed on the output end. During the flow of the low-temperature cooling water in the serpentine cooling channel 5, it absorbs and carries away the heat in the injection mold according to the principle of heat exchange. The cooling water in the flow process will pass through the front wall of the lower mold 2. The coolant is discharged from the outlet 7 on the right side and flows into the return pipe 16. Then, it enters the interior of the filter box 13 through the second inlet 14 installed on the top surface of the filter box 13. After entering the filter box 13, the coolant falls downwards to the bottom. During this process, the coolant passes through the filter frame 23 installed inside the filter box 13. The filter frame 23 uses a filter screen 25 installed on its inner bottom surface to intercept and filter scale and other impurities formed in the coolant, collecting the impurities within the filter frame 23. After filtration, the coolant flows into... At the bottom of the filter box 13, the input end of the second pump body 17 will draw out the filtered cooling water from the filter box 13 through the second outlet 15, and pump the cooling water from the first inlet 10 into the spray pipe 19 installed on the top surface of the cooling water tank 8 through the connecting pipe 18 installed on the output end. The atomizing nozzle 20 installed on the bottom surface of the spray pipe 19 will atomize the cooling water and spray it into the cooling water tank 8 for recycling. In this way, most of the heat absorbed by the cooling water can be naturally dissipated during the filtration and spraying process, preventing long-term heat loss. During use, the temperature of the cooling water in the cooling water tank 8 rises. Finally, the filter frame 23 is pulled out from the cleaning port 21 by the handle 26, and the retaining strips 24 on both sides of the filter frame 23 are removed from the slot 22. The filter frame 23 can be taken out from the filter box 13 to remove the filtered impurities and clean the filter screen 25 to prevent too many impurities from affecting the filtration effect. Thus, by filtering impurities in the circulating cooling water and heat dissipating the cooling water, the cooling effect can be effectively improved when the injection mold is rapidly cooled by the cooling mechanism 4.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present utility model, and components can be replaced with equivalents or some technical features can be replaced with equivalents. All such improvements within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid cooling injection mold, comprising an upper mold (1) and a lower mold (2), wherein the top surface of the lower mold (2) is provided with a mold cavity (3), characterized in that: A cooling mechanism (4) is provided in front of the lower mold (2), and the cooling mechanism (4) includes a cooling water tank (8), a first pump body (11), a filter box (13), a second pump body (17), a spray pipe (19), an atomizing nozzle (20), a filter frame (23), and a filter screen (25). The input end of the first pump body (11) is fixedly connected to the first liquid outlet (9) at the bottom of the rear end of the cooling water tank (8), and the output end of the first pump body (11) is fixedly connected to the coolant inlet (6) on the left side of the front end of the lower mold (2) by a conveying pipe (12). The second liquid inlet (14) on the top surface of the filter box (13) is connected to the coolant outlet on the right side of the front end of the lower mold (2). A return pipe (16) is fixedly connected between the ports (7), and the input end of the second pump body (17) is fixedly connected to the second outlet (15) at the bottom right side of the filter box (13). A connecting pipe (18) is fixedly connected between the output end of the second pump body (17) and the first inlet (10) at the top right side of the cooling water tank (8). The filter frame (23) is fixedly connected to the inside of the filter box (13) by the clips (24) on both sides, and the filter screen (25) is fixedly connected to the bottom inside of the filter frame (23). The spray pipe (19) is fixedly connected to the top inside of the cooling water tank (8), and an atomizing nozzle (20) is fixedly connected to the bottom of the spray pipe (19).

2. The injection mold for rapid cooling according to claim 1, characterized in that: The cooling water tank (8) has a first liquid outlet (9) fixedly installed at the bottom rear, and a first liquid inlet (10) fixedly installed at the top right side wall of the cooling water tank (8). The input end of the first pump body (11) is fixedly installed together with the first liquid outlet (9).

3. The injection mold for rapid cooling according to claim 2, characterized in that: The lower mold (2) has a serpentine cooling channel (5) inside and below the mold cavity (3). The front end wall of the conveying pipe (12) is fixedly installed with a coolant inlet (6) and a coolant outlet (7) connected by the serpentine cooling channel (5) on the left and right sides respectively. The conveying pipe (12) is fixedly installed between the coolant inlet (6) and the output end of the first pump body (11).

4. The rapid cooling injection mold according to claim 3, characterized in that: The filter box (13) has a second liquid inlet (14) fixedly installed on its top surface, and a second liquid outlet (15) fixedly installed on the bottom of the right side wall of the filter box (13). A return pipe (16) is fixedly installed between the second liquid inlet (14) and the coolant outlet (7). A cleaning port (21) is opened on the front wall of the filter box (13), and a set of vertically symmetrical slots (22) are opened on the left and right sides of the inner wall of the cleaning port (21). A set of vertically symmetrical clips (24) are fixedly installed on the left and right side walls of the filter frame (23), and the clips (24) are inserted into the slots (22). A filter screen (25) is fixedly installed on the bottom surface of the filter frame (23), and a handle (26) is fixedly installed on the front wall of the filter frame (23).

5. The injection mold for rapid cooling according to claim 4, characterized in that: The input end of the second pump body (17) is fixedly installed together with the second liquid outlet (15), and a connecting pipe (18) is fixedly installed between the output end of the second pump body (17) and the first liquid inlet (10).

6. The injection mold for rapid cooling according to claim 5, characterized in that: The spray pipe (19) is fixedly installed on the top surface inside the cooling water tank (8) and connected to the first liquid inlet (10). Several atomizing nozzles (20) are also fixedly installed on the bottom surface of the spray pipe (19).

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