Injection molding machine cooling system for plastic product production

Abstract

The invention belongs to the technical field of injection molding machine cooling, particularly relates to an injection molding machine cooling system for plastic product production, and provides the following scheme that the injection molding machine cooling system comprises a water storage tank and a cooling mechanism installed outside the water storage tank, and the cooling mechanism comprises a storage assembly; in the using process, the first pump body works to provide pressure for cooling liquid stored in the water storage tank for conveying, and the cooling liquid in the water storage tank is filtered by a filter screen in the conveying process, so that the situation that impurities in water in the water storage tank enter a cooling pipeline, and consequently the pipeline is blocked, and the cooling effect on the injection molding machine is affected is avoided; then the first pump body pumps the liquid into the liquid outlet pipe for circulation, the liquid outlet pipe is lower than the backflow pipe, so that the liquid output from the liquid outlet pipe is the liquid with the lower temperature so as to be conveniently cooled, and the cooling liquid returning to the interior of the water storage tank from the backflow pipe can be located on the upper layer of the liquid in the water storage tank; and the liquid with lower temperature sinks downwards so as to be at the bottom.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machine cooling, in particular to an injection molding machine cooling system for producing plastic products. Background Art

[0002] An injection molding machine is a plastic molding machine used to produce plastic products of various shapes and sizes. It is a method of injecting molten plastic material into a mold and obtaining a molded product after cooling and solidification. Injection molding has the advantages of fast production speed, high efficiency, and high degree of automation. It is suitable for mass production and products with complex shapes. In order to ensure the completion of the injection molded product, the injection molding machine needs to be cooled during the injection molding process.

[0003] However, the prior art injection molding machine cooling system utilizes waste heat after the injection molding machine and the mold are cooled during use, which easily causes heat waste. It is necessary to develop a new functional injection molding machine cooling system for plastic product production.

[0004] For this reason, a cooling system for an injection molding machine for producing plastic products is required. Summary of the invention

[0005] The present invention provides a cooling system for an injection molding machine for producing plastic products, which solves the problem in the prior art that the cooling system for an injection molding machine utilizes waste heat after the injection molding machine and the mold are cooled during use, thus easily causing heat waste.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cooling system for an injection molding machine for producing plastic products, comprising a storage water tank and a cooling mechanism installed outside the storage water tank, wherein the cooling mechanism comprises a storage assembly;

[0008] The storage assembly includes a filter screen, a filter screen is installed inside the storage water tank, the filter screen is fixedly installed on the side of the first pump body, the top of the storage water tank is movably connected to the top cover, the top of the top cover is provided with a liquid medicine port, the outlet of the first pump body and the liquid outlet pipe are fixed to each other, a pressure detector is installed inside the liquid outlet pipe, a temperature detector is installed at a position of the liquid outlet pipe away from the pressure detector, the end of the liquid outlet pipe is fixed to the shunt pipe, the side of the shunt pipe is fixed to the injection cooling pipe, the upper mold cooling pipe and the lower mold cooling pipe, the injection cooling pipe, the upper mold cooling pipe and the lower mold cooling pipe are parallel to each other, and the inside of the injection cooling pipe is fixed to the spiral ring.

[0009] The upper mold cooling pipe and the lower mold cooling pipe are fixedly installed with a water valve at one end close to the shunt pipe, and the other ends of the injection cooling pipe, the upper mold cooling pipe and the water valve are fixed to each other with the side seat, and the side seat is installed at the bottom of the injection cooling pipe, and a slide groove is provided on the surface of the side seat, and a bottom clamping groove is provided at the bottom of the slide groove, and a side clamping groove is provided at the top of the slide groove, and a slider is installed inside the slide groove, and the slider and the first fan at the top are movably installed, and a second fan is installed behind the first fan, and a hot water exchange tank is fixedly installed at the other end of the confluence pipe, and a heat exchange pipe is installed inside the hot water exchange tank, and the heat exchange pipe and the hot water exchange tank are circulated with each other, and the other end of the heat exchange pipe is connected to the return pipe, and the return pipe and the storage water tank are circulated with each other, and a second pump body is installed at the bottom of the hot water exchange tank, a liquid inlet is installed on the outside of the second pump body, and a liquid outlet is installed on the top of the hot water exchange tank.

[0010] Preferably, the liquid outlet pipe is installed at the bottom of the storage water tank, and the height of the liquid outlet pipe is lower than the height of the return pipe.

[0011] Preferably, the injection cooling pipe forms a flow structure between the diverter pipe and the liquid outlet pipe, the spiral coil forms a spiral structure inside the injection cooling pipe, the spiral coil is a hose, and the injection cooling pipe, the upper mold cooling pipe and the lower mold cooling pipe do not flow with each other.

[0012] Preferably, the upper mold cooling pipe forms a flow structure between the shunt pipe and the liquid outlet pipe, and the lower mold cooling pipe forms a flow structure between the shunt pipe and the liquid outlet pipe. Both the upper mold cooling pipe and the lower mold cooling pipe are ring-shaped structures, and both the upper mold cooling pipe and the lower mold cooling pipe are hoses.

[0013] Preferably, the first fan forms a sliding structure with the side seat through the cooperation between the slider and the slide groove, the side seat is a right-angle structure, and the first fan forms a snap-fit ​​structure with the side seat through the cooperation between the first fan and the bottom snap-fit ​​groove.

[0014] Preferably, the positions of the first fan and the upper mold cooling pipe correspond to each other, the positions of the second fan and the lower mold cooling pipe correspond to each other, and the first fan and the second fan have the same structure.

[0015] Preferably, the return pipe forms a flow structure between the heat exchange pipe and the merging pipe, the heat exchange water tank, the merging pipe and the return pipe are all sealed with each other, and the heat exchange pipe is a meander-shaped structure.

[0016] Preferably, the liquid outlet forms a flow structure between the water exchange water tank and the liquid inlet, and the height of the liquid inlet is lower than that of the liquid outlet.

[0017] The present invention proposes a cooling system for an injection molding machine for producing plastic products. Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. During the use of the present invention, the first pump body works to provide pressure for the coolant stored in the storage water tank for transportation. During the transportation process, the filter screen filters the coolant in the storage water tank to prevent impurities in the water in the storage water tank from entering the cooling pipe, causing pipe blockage and affecting the cooling effect of the injection molding machine. Then the first pump body pumps the liquid into the liquid outlet pipe for circulation, and the height of the liquid outlet pipe is lower than the height of the return pipe so that the liquid output from the liquid outlet pipe is a liquid with a lower temperature for easy cooling. The coolant returning to the storage water tank from the return pipe will be in the upper layer of the liquid in the storage water tank, and the liquid with a lower temperature will sink and therefore will be at the bottom, thereby improving the cooling efficiency of the device.

[0019] 2. During the use of the present invention, the upper mold cooling tube and the lower mold cooling tube cool the upper and lower molds inside the injection molding machine respectively. The upper mold cooling tube and the lower mold cooling tube are respectively tightly attached to the upper mold and the lower mold and arranged in a zigzag shape, which can increase the contact area between the mold and the upper mold cooling tube and the lower mold cooling tube. Therefore, when the coolant inside the upper mold cooling tube and the lower mold cooling tube passes through, it will contact the mold. When the injection molding is completed, the coolant inside the contact pipe contacts the high-temperature mold. Therefore, the heat in the mold will exchange with the heat of the coolant flowing through the pipe, thereby completing the cooling of the mold.

[0020] 3. During the use of the present invention, when the upper mold cooling pipe and the lower mold cooling pipe cool the mold, the upper mold cooling pipe and the lower mold cooling pipe are blown by the first fan and the second fan, so as to improve the heat exchange efficiency between the upper mold cooling pipe and the lower mold cooling pipe and the mold.

[0021] 4. During the use of the present invention, the cooling liquid inside the injection cooling tube, the upper mold cooling tube and the lower mold cooling tube will be collected in the confluence tube, and then flow into the heat exchange tube through the confluence tube. The cooled liquid will absorb the heat in the mold and its temperature will rise. Then, the high-temperature coolant enters the heat exchange tube and exchanges heat with the liquid inside the heat exchange water tank. The user pumps cold water into the heat exchange water tank through the liquid inlet through the second pump body, and then exchanges heat with the heat exchange tube inside the heat exchange water tank to absorb the heat of the coolant flowing in the heat exchange tube. After the absorption is completed, the temperature of the liquid inside the heat exchange tube decreases and flows back to the storage water tank through the reflux pipe for storage. At the same time, the water inside the heat exchange water tank is discharged from the device through the liquid outlet for other purposes, so as to utilize the waste heat of the device and avoid energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The figure is a schematic diagram of the overall structure of the cooling system of the injection molding machine for producing plastic products according to the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of a water storage tank of a cooling system for an injection molding machine for producing plastic products according to the present invention.

[0024] Figure 3 The present invention is a schematic diagram of the cooling component structure of the cooling system of the injection molding machine for producing plastic products.

[0025] Figure 4 The side seat structure schematic diagram of the cooling system of the injection molding machine for producing plastic products of the present invention.

[0026] Figure 5 The present invention is a schematic diagram of the structure of a reflux component of a cooling system of an injection molding machine for producing plastic products.

[0027] Figure 6 The present invention is a schematic cross-sectional view of the heat exchange water tank of the cooling system of the injection molding machine for producing plastic products.

[0028] Figure 7 The present invention is a schematic diagram of the overall cooling process of the cooling system of the injection molding machine for producing plastic products.

[0029] In the figure: 1. storage water tank; 2. filter screen; 3. first pump body; 4. top cover; 5. medicine liquid port; 6. liquid outlet pipe; 7. pressure detector; 8. temperature detector; 9. shunt pipe; 10. injection cooling pipe; 11. spiral ring; 12. upper mold cooling pipe; 13. lower mold cooling pipe; 14. water valve; 15. confluence pipe; 16. side seat; 17. slide groove; 18. bottom slot; 19. side slot; 20. slide block; 21. first fan; 22. second fan; 23. heat exchange water tank; 24. heat exchange pipe; 25. reflux pipe; 26. second pump body; 27. liquid inlet; 28. liquid outlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-7 , the present invention provides a technical solution: a cooling system for an injection molding machine for producing plastic products, comprising a storage water tank 1 and a cooling mechanism installed outside the storage water tank 1, the cooling mechanism comprising a storage assembly;

[0032] The storage assembly includes a filter 2, a filter 2 is installed inside the storage water tank 1, the filter 2 is fixedly installed on the side of the first pump body 3, the top of the storage water tank 1 is movably connected to the top cover 4, a medicine liquid port 5 is opened on the top of the top cover 4, the outlet of the first pump body 3 and the liquid outlet pipe 6 are fixed to each other, a pressure detector 7 is installed inside the liquid outlet pipe 6, a temperature detector 8 is installed at a position of the liquid outlet pipe 6 away from the pressure detector 7, the end of the liquid outlet pipe 6 is fixed to the shunt pipe 9, the side of the shunt pipe 9 is fixed to the injection cooling pipe 10, the upper mold cooling pipe 12 and the lower mold cooling pipe 13, the injection cooling pipe 10, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 are parallel to each other, and the inside of the injection cooling pipe 10 is fixed to the spiral ring 11.

[0033] The upper mold cooling pipe 12 and the lower mold cooling pipe 13 are fixedly installed with a water valve 14 at one end close to the diverter pipe 9. The other ends of the injection cooling pipe 10, the upper mold cooling pipe 12 and the water valve 14 are fixed to the side seat 16. The side seat 16 is installed at the bottom of the injection cooling pipe 10. The surface of the side seat 16 is provided with a slide groove 17. The bottom of the slide groove 17 is provided with a bottom card groove 18. The top of the slide groove 17 is provided with a side card groove 19. The inside of the slide groove 17 is provided with a slider 20. There is a first fan 21 between the slider 20 and the top. It is movably installed, with a second fan 22 installed behind the first fan 21, a heat exchange water tank 23 fixedly installed at the other end of the confluence pipe 15, a heat exchange pipe 24 installed inside the heat exchange water tank 23, the heat exchange pipe 24 and the heat exchange water tank 23 are in circulation with each other, the other end of the heat exchange pipe 24 is connected to a return pipe 25, the return pipe 25 and the storage water tank 1 are in circulation with each other, a second pump body 26 is installed at the bottom of the heat exchange water tank 23, a liquid inlet 27 is installed on the outside of the second pump body 26, and a liquid outlet 28 is installed on the top of the heat exchange water tank 23.

[0034] Furthermore, the liquid outlet pipe 6 is installed at the bottom of the storage water tank 1, and the height of the liquid outlet pipe 6 is lower than the height of the return pipe 25. During use, the first pump body 3 works to provide pressure for the coolant stored in the storage water tank 1 for transportation. During the transportation process, the filter screen 2 filters the coolant in the storage water tank 1 to prevent impurities in the water body inside the storage water tank 1 from entering the cooling pipe, causing pipe blockage and affecting the cooling effect of the injection molding machine. Then the first pump body 3 pumps the liquid into the liquid outlet pipe 6 for circulation, and the height of the liquid outlet pipe 6 is lower than the height of the return pipe 25, so that the liquid output from the liquid outlet pipe 6 is a liquid with a lower temperature for easy cooling. The coolant returning to the storage water tank 1 from the return pipe 25 will be in the upper layer of the liquid inside the storage water tank 1, and the liquid with a lower temperature will sink and therefore will be at the bottom, thereby improving the cooling efficiency of the device.

[0035] Furthermore, the injection cooling pipe 10 forms a circulation structure between the shunt pipe 9 and the liquid outlet pipe 6, and the spiral coil 11 forms a spiral structure inside the injection cooling pipe 10. The spiral coil 11 is a hose. The injection cooling pipe 10, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 do not circulate with each other. During use, the coolant flowing into the shunt pipe 9 from the liquid outlet pipe 6 is shunted and adjusted by the pressure detector 7 and the temperature detector 8, and then flows into the injection cooling pipe 10, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 respectively. The coolant flowing into the injection cooling pipe 10 can cool the vicinity of the injection port of the injection molding machine through the spiral coil 11. At the same time, the spiral coil 11 is a hose, which makes the device fit the injection molding machine more closely, improves the cooling efficiency of the device, and avoids the melting and blockage of the material at the discharge port.

[0036] Furthermore, the upper mold cooling pipe 12 forms a flow structure between the shunt pipe 9 and the liquid outlet pipe 6, and the lower mold cooling pipe 13 forms a flow structure between the shunt pipe 9 and the liquid outlet pipe 6. The upper mold cooling pipe 12 and the lower mold cooling pipe 13 are both zigzag structures, and the upper mold cooling pipe 12 and the lower mold cooling pipe 13 are both hoses. The upper mold cooling pipe 12 and the lower mold cooling pipe 13 cool the upper and lower molds inside the injection molding machine respectively. The upper mold cooling pipe 12 and the lower mold cooling pipe 13 are respectively tightly attached to the upper mold and the lower mold and arranged in a zigzag shape, which can increase the contact area between the mold and the upper mold cooling pipe 12 and the lower mold cooling pipe 13. Therefore, when the coolant inside the upper mold cooling pipe 12 and the lower mold cooling pipe 13 passes through, it will contact the mold. When the injection molding is completed, the coolant inside the contact pipe contacts the high-temperature mold, so the heat in the mold will exchange with the heat of the coolant flowing through the pipe, thereby completing the cooling of the mold.

[0037] Furthermore, the first fan 21 forms a sliding structure with the side seat 16 through the cooperation between the slider 20 and the slide groove 17, and the side seat 16 is a right-angle structure. The first fan 21 forms a snap-fit ​​structure with the side seat 16 through the cooperation between the first fan 21 and the bottom slot 18. During use, the first fan 21 slides inside the slide groove 17 through the bottom slider 20 to adjust the position of the first fan 21 inside the device, so that the first fan 21 and the second fan 22 can be adjusted to the positions corresponding to the upper mold cooling pipe 12 and the lower mold cooling pipe 13, thereby improving the heat exchange efficiency between the upper mold cooling pipe 12 and the lower mold cooling pipe 13 and the mold. After the first fan 21 is adjusted to a suitable position, the first fan 21 and the bottom slider 20 are moved to the left, and the slider 20 is snap-fitted into the bottom slot 18 and the side slot 19. The position of the first fan 21 is fixed in this way, so that it can face the upper mold cooling pipe 12 and the lower mold cooling pipe 13.

[0038] Furthermore, the positions of the first fan 21 and the upper mold cooling pipe 12 correspond to each other, and the positions of the second fan 22 and the lower mold cooling pipe 13 correspond to each other. The first fan 21 and the second fan 22 have the same structure. In the process of cooling the mold by the upper mold cooling pipe 12 and the lower mold cooling pipe 13, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 are blown by the first fan 21 and the second fan 22, so as to improve the heat exchange efficiency between the upper mold cooling pipe 12 and the lower mold cooling pipe 13 and the mold.

[0039] Furthermore, the return pipe 25 forms a flow structure between the heat exchange pipe 24 and the confluence pipe 15. The heat exchange water tank 23, the confluence pipe 15 and the return pipe 25 are all sealed with each other. The heat exchange pipe 24 is a round-shaped structure. The cooling liquid inside the injection cooling pipe 10, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 will be collected in the confluence pipe 15, and then flow into the heat exchange pipe 24 through the confluence pipe 15. The cooled liquid will absorb the heat in the mold and the temperature will rise. Then, the high-temperature cooling liquid will enter the heat exchange pipe 24 and the heat exchange water tank 23. In order to exchange heat with the liquid, the user pumps cold water into the heat exchange water tank 23 through the liquid inlet 27 via the second pump body 26, and then exchanges heat with the heat exchange tube 24 inside the heat exchange water tank 23 to absorb the heat of the coolant flowing in the heat exchange tube 24. After the absorption is completed, the temperature of the liquid inside the heat exchange tube 24 decreases and flows back to the storage water tank 1 through the reflux pipe 25 for storage. At the same time, the water inside the heat exchange water tank 23 is discharged from the device through the liquid outlet 28 for other uses, thereby utilizing the waste heat of the device to avoid energy waste.

[0040] Furthermore, the liquid outlet 28 forms a flow structure between the water exchange tank 23 and the liquid inlet 27. The height of the liquid inlet 27 is lower than that of the liquid outlet 28. During use, the water in the water exchange tank 23 that has undergone heat exchange through the heat exchange tube 24 is discharged through the liquid outlet 28. The second pump body 26 pumps external water into the water exchange tank 23 through the liquid inlet 27. The height of the liquid inlet 27 is lower than that of the liquid outlet 28, so that the liquid level in the water exchange tank 23 can rise slowly and fully contact the heat exchange tube 24, thereby increasing the contact area between the water body and the heat exchange tube 24 and improving the utilization efficiency of waste heat.

[0041] Working principle: First, the first pump body 3 works to provide pressure for the coolant stored in the storage tank 1 for transportation. During the transportation process, the filter screen 2 filters the coolant in the storage tank 1 to prevent impurities in the water body inside the storage tank 1 from entering the cooling pipeline, causing pipeline blockage and affecting the cooling effect of the injection molding machine. Then the first pump body 3 pumps the liquid into the liquid outlet pipe 6 for circulation, and the height of the liquid outlet pipe 6 is lower than the height of the return pipe 25, so that the liquid output from the liquid outlet pipe 6 is a liquid with a lower temperature for easy cooling. The coolant returning to the storage tank 1 from the return pipe 25 will be in the upper layer of the liquid inside the storage tank 1, and the liquid with a lower temperature will sink and therefore will be at the bottom, thereby improving the cooling efficiency of the device. The cooling liquid flowing into the shunt pipe 9 from the outlet pipe 6 is adjusted by the cooperation of the pressure detector 7 and the temperature detector 8, and then flows into the injection cooling pipe 10, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 respectively. The cooling liquid flowing into the injection cooling pipe 10 can cool the vicinity of the injection port of the injection molding machine through the spiral ring 11. At the same time, the spiral ring 11 is a hose, which makes the device fit more closely with the injection molding machine, improves the cooling efficiency of the device, and avoids the material melting and clogging of the discharge port. Then, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 are closely fitted to the upper mold and the lower mold respectively and arranged in a zigzag shape, which can improve the contact surface between the mold and the upper mold cooling pipe 12 and the lower mold cooling pipe 13. Therefore, the coolant inside the upper mold cooling pipe 12 and the lower mold cooling pipe 13 will contact the mold when passing through. When the injection molding is completed, the coolant inside the pipe contacts the high-temperature mold, so the heat in the mold will exchange with the heat of the coolant flowing through the pipe, so as to complete the cooling of the mold. In the process of cooling the mold by the upper mold cooling pipe 12 and the lower mold cooling pipe 13, the upper mold cooling pipe 12 and the lower mold cooling pipe 13 are blown by the first fan 21 and the second fan 22, which can improve the heat exchange efficiency between the upper mold cooling pipe 12 and the lower mold cooling pipe 13 and the mold. The cooled coolant will be collected in the inside of the confluence pipe 15, and then flow into the heat exchange pipe 2 through the confluence pipe 15 4, the cooled liquid will absorb the heat in the mold and its temperature will rise. Then, the high-temperature coolant enters the heat exchange tube 24 and exchanges heat with the liquid in the heat exchange water tank 23. The user pumps cold water into the heat exchange water tank 23 through the liquid inlet 27 via the second pump body 26, and then exchanges heat with the heat exchange tube 24 in the heat exchange water tank 23 to absorb the heat of the coolant flowing in the heat exchange tube 24. After the absorption is completed, the temperature of the liquid in the heat exchange tube 24 decreases and flows back to the storage water tank 1 through the reflux pipe 25 for storage. At the same time, the water in the heat exchange water tank 23 is discharged from the device through the liquid outlet 28 for other uses, so as to utilize the waste heat of the device and avoid energy waste.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling system for an injection molding machine for producing plastic products, comprising a storage water tank (1) and a cooling mechanism installed outside the storage water tank (1), characterized in that: The cooling mechanism includes a storage assembly; The storage assembly comprises a filter (2), a filter (2) is installed inside the storage water tank (1), the filter (2) is fixedly installed on the side of the first pump body (3), the top of the storage water tank (1) is movably connected to the top cover (4), the top of the top cover (4) is provided with a liquid medicine port (5), the outlet of the first pump body (3) and the liquid outlet pipe (6) are fixed to each other, a pressure detector (7) is installed inside the liquid outlet pipe (6), a temperature detector (8) is installed at a position of the liquid outlet pipe (6) away from the pressure detector (7), the end of the liquid outlet pipe (6) is fixed to the shunt pipe (9), the side of the shunt pipe (9) is fixed to the injection cooling pipe (10), the upper mold cooling pipe (12) and the lower mold cooling pipe (13), the injection cooling pipe (10), the upper mold cooling pipe (12) and the lower mold cooling pipe (13) are parallel to each other, and the inside of the injection cooling pipe (10) is fixed to the spiral ring (11).

2. The cooling system for an injection molding machine for producing plastic products according to claim 1, characterized in that: A water valve (14) is fixedly installed at one end of the upper mold cooling pipe (12) and the lower mold cooling pipe (13) close to the diverter pipe (9); the other ends of the injection cooling pipe (10), the upper mold cooling pipe (12) and the water valve (14) are fixed to a side seat (16); the side seat (16) is installed at the bottom of the injection cooling pipe (10); a slide groove (17) is provided on the surface of the side seat (16); a bottom clamping groove (18) is provided at the bottom of the slide groove (17); a side clamping groove (19) is provided at the top of the slide groove (17); a slider (20) is installed inside the slide groove (17); a first fan (21) is provided between the slider (20) and the top. The heat exchanger (23) is movably installed, wherein a second fan (22) is installed behind the first fan (21), a heat exchange tank (23) is fixedly installed at the other end of the confluence pipe (15), a heat exchange pipe (24) is installed inside the heat exchange tank (23), the heat exchange pipe (24) and the heat exchange tank (23) are in communication with each other, the other end of the heat exchange pipe (24) is connected to a return pipe (25), the return pipe (25) and the storage tank (1) are in communication with each other, a second pump body (26) is installed at the bottom of the heat exchange tank (23), a liquid inlet (27) is installed on the outside of the second pump body (26), and a liquid outlet (28) is installed at the top of the heat exchange tank (23).

3. The cooling system for an injection molding machine for producing plastic products according to claim 1, characterized in that: The liquid outlet pipe (6) is installed at the bottom of the storage water tank (1), and the height of the liquid outlet pipe (6) is lower than the height of the return pipe (25).

4. The cooling system for an injection molding machine for producing plastic products according to claim 1, characterized in that: The injection cooling pipe (10) forms a flow structure between the shunt pipe (9) and the liquid outlet pipe (6), the spiral coil (11) forms a spiral structure inside the injection cooling pipe (10), and the spiral coil (11) is a hose. The injection cooling pipe (10), the upper mold cooling pipe (12) and the lower mold cooling pipe (13) do not flow with each other.

5. The cooling system for an injection molding machine for producing plastic products according to claim 1, characterized in that: The upper mold cooling pipe (12) forms a flow structure between the shunt pipe (9) and the liquid outlet pipe (6), and the lower mold cooling pipe (13) forms a flow structure between the shunt pipe (9) and the liquid outlet pipe (6). Both the upper mold cooling pipe (12) and the lower mold cooling pipe (13) are of a circular structure, and both the upper mold cooling pipe (12) and the lower mold cooling pipe (13) are hoses.

6. The cooling system for an injection molding machine for producing plastic products according to claim 2, characterized in that: The first fan (21) forms a sliding structure with the side seat (16) through the cooperation between the slider (20) and the slide groove (17); the side seat (16) is a right-angle structure; the first fan (21) forms a snap-fit ​​structure with the side seat (16) through the cooperation between the first fan (21) and the bottom snap-fit ​​groove (18).

7. The cooling system for an injection molding machine for producing plastic products according to claim 2, characterized in that: The positions of the first fan (21) and the upper mold cooling pipe (12) correspond to each other, the positions of the second fan (22) and the lower mold cooling pipe (13) correspond to each other, and the first fan (21) and the second fan (22) have the same structure.

8. The cooling system for an injection molding machine for producing plastic products according to claim 2, characterized in that: The return pipe (25) forms a flow structure between the heat exchange pipe (24) and the confluence pipe (15); the heat exchange water tank (23), the confluence pipe (15) and the return pipe (25) are all sealed with each other; and the heat exchange pipe (24) is a meander-shaped structure.

9. The cooling system for an injection molding machine for producing plastic products according to claim 2, characterized in that: The liquid outlet (28) forms a flow structure between the heat exchange water tank (23) and the liquid inlet (27), and the height of the liquid inlet (27) is lower than the height of the liquid outlet (28).

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