A water-cooling device for extrusion die head

Abstract

This utility model relates to the field of extrusion die head water cooling technology, and discloses an extrusion die head water cooling device, including an extrusion die head body. A spiral guide groove is provided inside the extrusion die head body. A water inlet pipe connected to the spiral guide groove is installed at the left end of the extrusion die head body, and a water outlet pipe connected to the spiral guide groove is installed at the right end of the extrusion die head body. A No. 1 tee connector is connected to the water inlet pipe, and a No. 2 tee connector is connected to the water outlet pipe. One end of a cold water conveying mechanism is connected to a water storage tank, and the other end is connected to the No. 1 tee connector. This utility model's cold water conveying mechanism can cool the water in the water storage tank and deliver it to the spiral guide groove inside the extrusion die head body. The cold water efficiently removes heat from the die head. The serpentine return pipe and heat dissipation fins of the cooling return mechanism can effectively dissipate heat from the hot water. The honeycomb structure of the water storage tank and the switchable ventilation and dustproof net can quickly reduce the water temperature in the storage tank, reducing the cooling capacity consumption of subsequent industrial chillers.

Description

Technical Field

[0001] This utility model relates to the field of water cooling technology for extrusion die heads, and in particular to a water cooling device for extrusion die heads. Background Technology

[0002] In the extrusion molding process, the extrusion die head, as a key component in melt forming, generates a large amount of heat due to melt flow friction and equipment operation. If this heat cannot be dissipated in time, the die head temperature will become excessively high. Therefore, timely and efficient cooling of the extrusion die head is crucial for ensuring the quality of extruded products, extending equipment life, and maintaining stable production. However, existing water-cooling devices for extrusion dies often suffer from low cooling efficiency. For example, unreasonable water flow path design leads to insufficient heat exchange, poor cooling effect of return hot water increases the load on the refrigeration equipment, and scale easily accumulates inside the die head after long-term use, clogging water flow channels, reducing heat conduction efficiency, and making cleaning difficult. These issues fail to meet the requirements of stable, economical, and easy-to-maintain die head cooling in actual production. Therefore, there is an urgent need to develop a cold water delivery mechanism that can cool water in the storage tank and deliver it to the spiral guide groove inside the extrusion die head, efficiently removing the water through the cold water. The serpentine return pipe and heat dissipation fins of the die head cooling reflux mechanism effectively dissipate heat from the hot water. The honeycomb structure and switchable ventilation and dustproof net of the water storage tank can quickly reduce the water temperature in the storage tank, reducing the cooling capacity consumption of the subsequent industrial chiller. The descaling mechanism allows the descaling agent to circulate in the spiral guide channel, which not only dissolves the scale but also improves the descaling efficiency through flushing. It also facilitates the discharge of wastewater after descaling. Overall, it improves the cooling efficiency of the extrusion die head and the convenience of equipment maintenance, reducing the cost of use. This water-cooling device for the extrusion die head overcomes the shortcomings in current practical applications and meets current needs. Utility Model Content

[0003] The purpose of this invention is to provide a water-cooling device for extrusion die heads to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A water-cooling device for an extrusion die head includes an extrusion die head body, a No. 1 tee connector, a No. 2 tee connector, a cold water conveying mechanism, a water storage tank, a cooling reflux mechanism, a descaling mechanism, a dustproof plate, and a ventilation and dustproof net. The extrusion die head body has a spiral guide groove. A water inlet pipe connected to the spiral guide groove is installed at the left end of the extrusion die head body, and a water outlet pipe connected to the spiral guide groove is installed at the right end of the extrusion die head body. A No. 1 tee connector is connected to the water inlet pipe. The outlet pipe is connected to a No. 2 tee connector. One end of the cold water conveying mechanism is connected to the water storage tank and the other end is connected to the No. 1 tee connector. The water storage tank contains tap water. One end of the cooling return mechanism is connected to the No. 2 tee connector and the other end is connected to the water storage tank. One end of the descaling mechanism is connected to the No. 1 tee connector and the other end is connected to the No. 2 tee connector. The top of the water storage tank is open. Dustproof plates and ventilation dustproof nets are rotatably connected to the left and right sides of the water storage tank, respectively.

[0005] Preferably, the outer surface of the water storage tank is provided with a honeycomb structure.

[0006] Preferably, the lower end of the dustproof plate is fixed with a first rotating shaft, which is rotatably connected to the left side wall of the water storage tank. A first handle is fixed on the dustproof plate. The lower end of the ventilation dustproof net is fixed with a second rotating shaft, which is rotatably connected to the right side wall of the water storage tank. A second handle is fixed on the ventilation dustproof net.

[0007] Preferably, the cold water delivery mechanism includes: a water pump, an industrial chiller, an input pipe, and a first solenoid valve. The suction end of the water pump is connected to a water storage tank through a pipe, the outlet end of the water pump is connected to the inlet end of the industrial chiller through a pipe, the outlet end of the industrial chiller is connected to a No. 1 tee connector through the input pipe, and the first solenoid valve is installed on the input pipe.

[0008] Preferably, the cooling reflux mechanism includes a serpentine reflux pipe, a second solenoid valve, and heat dissipation fins. The first end of the serpentine reflux pipe is connected to a No. 2 tee connector, and the tail end of the serpentine reflux pipe is connected to a water storage tank. The second solenoid valve is installed on the serpentine reflux pipe, and multiple heat dissipation fins are fixed on the serpentine reflux pipe.

[0009] Preferably, both the serpentine return pipe and the heat dissipation fins are made of copper.

[0010] Preferably, the descaling mechanism includes: a medicine tank, a circulating pump, a medicine delivery pipe, a third solenoid valve, a return pipe, and a fourth solenoid valve. The medicine tank is used to store descaling agent. The suction port of the circulating pump is connected to the medicine tank through a pipe. The outlet of the circulating pump is connected to a No. 2 tee connector through the medicine delivery pipe. A third solenoid valve is installed on the medicine delivery pipe. The upper end of the return pipe is connected to a No. 1 tee connector, and the lower end is connected to the medicine tank. A fourth solenoid valve is installed on the return pipe.

[0011] Preferably, the medicine box is provided with a medicine inlet, the medicine inlet is detachably fitted with an end cap, the lower end of the medicine box is provided with a drain outlet, and the drain outlet is detachably fitted with a plug.

[0012] The beneficial effects of this utility model are as follows: When the extrusion die head water cooling device needs to cool the extrusion die head body, the first and second solenoid valves are opened, and the third and fourth solenoid valves are closed. Water is pumped from the storage tank and transported to an industrial chiller. The industrial chiller cools the water and then transports it from the input pipe to the No. 1 tee connector, from the No. 1 tee connector to the inlet pipe and spiral guide groove. The cold water carries away the heat from the extrusion die head body. Hot water flows back to the storage tank through the serpentine return pipe. The heat dissipation fins increase the contact area between the serpentine return pipe and the air, improving the heat dissipation effect. The serpentine design of the return pipe increases the water flow time within it, further enhancing the heat dissipation effect. At this time, the dustproof plate is removed and moved to one side, and the ventilation dustproof net is placed over the storage tank. At the top of the tank, airflow can pass through the ventilation and dustproof mesh to remove heat from the water storage tank. Simultaneously, the honeycomb structure expands the surface area of ​​the water storage tank, increasing its contact area with air, improving heat dissipation efficiency, and rapidly reducing the water temperature inside the tank, thereby reducing the cooling capacity of subsequent industrial chillers. After a period of use, the scale in the spiral guide channel needs to be cleaned. At this time, close the first and second solenoid valves, and open the third and fourth solenoid valves. First, add the descaling agent to the medicine tank, then open the third and fourth solenoid valves. The circulating pump will transport the descaling agent from the medicine tank through the guide pipe to the spiral guide channel, thereby dissolving the scale in the spiral guide channel. The descaling agent then flows back to the medicine tank through the return pipe. This circulation continues for about half an hour. Finally, remove the plug and drain the wastewater from the medicine tank. In summary, the cold water conveying mechanism of this utility model can cool the water in the storage tank and deliver it to the spiral guide groove inside the extrusion die head. The cold water efficiently removes heat from the die head. The serpentine return pipe and heat dissipation fins of the cooling return mechanism can effectively dissipate heat from the hot water. The honeycomb structure of the storage tank and the switchable ventilation and dustproof net can quickly reduce the water temperature in the storage tank, reducing the cooling capacity consumption of the subsequent industrial chiller. The descaling mechanism allows the descaling agent to circulate in the spiral guide groove, which not only dissolves the scale but also improves the descaling efficiency through flushing. Furthermore, it facilitates the discharge of wastewater after descaling. Overall, it improves the cooling efficiency of the extrusion die head and the convenience of equipment maintenance, while reducing operating costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0015] Figure 3 This is an internal sectional view of the extrusion die head body in this utility model.

[0016] Figure 4 This is a partial structural diagram of the present invention. Figure 1 .

[0017] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0018] Figure 6 This is a partial structural diagram of the present invention. Figure 3 .

[0019] Figure 7 This is a partial structural diagram of the present invention. Figure 4 .

[0020] Legend: 1. Extrusion die head body; 101. Water inlet pipe; 102. Water outlet pipe; 103. Spiral guide groove; 2. No. 1 tee connector; 3. No. 2 tee connector; 4. Cold water conveying mechanism; 401. Water pump; 402. Industrial chiller; 403. Input pipe; 404. First solenoid valve; 5. Water storage tank; 501. Honeycomb structure; 6. Cooling return mechanism; 601. Serpentine return pipe; 602. Second solenoid valve; 603. Heat dissipation fins; 7. 701. Descaling mechanism; 701. Medicine tank; 7011. Dosing port; 7012. End cap; 7013. Drain outlet; 7014. Plug; 702. Circulation pump; 703. Medicine guide tube; 704. Third solenoid valve; 705. Medicine return tube; 706. Fourth solenoid valve; 8. Dustproof plate; 801. First rotating shaft; 802. First handle; 9. Ventilation and dustproof net; 901. Second rotating shaft; 902. Second handle; 10. PLC controller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Specific implementation examples are given below.

[0023] See Figures 1-7In this embodiment of the present invention, an extrusion die head water cooling device includes an extrusion die head body 1, a first tee connector 2, a second tee connector 3, a cold water conveying mechanism 4, a water storage tank 5, a cooling reflux mechanism 6, a descaling mechanism 7, a dustproof plate 8, and a ventilation dustproof net 9. The extrusion die head body 1 is installed on an extruder. A spiral guide groove 103 is provided inside the extrusion die head body 1 for water to flow through. A water inlet pipe 101 connected to the spiral guide groove 103 is installed at the left end of the extrusion die head body 1, and a water outlet pipe 102 connected to the spiral guide groove 103 is installed at the right end of the extrusion die head body 1. A first tee connector 2 is connected to the water inlet pipe 101, and a second tee connector 3 is connected to the water outlet pipe 102.

[0024] The cold water delivery mechanism 4, water storage tank 5, cooling return mechanism 6, and descaling mechanism 7 are all placed on the ground.

[0025] One end of the cold water conveying mechanism 4 is connected to the water storage tank 5 and the other end is connected to the No. 1 tee connector 2. The water storage tank 5 contains tap water. The cold water conveying mechanism 4 cools the water in the water storage tank 5 and then conveys it to the No. 1 tee connector 2.

[0026] One end of the cooling return mechanism 6 is connected to the No. 2 tee connector 3 and the other end is connected to the water storage tank 5. The water discharged from the extrusion die head body 1 is cooled and returned to the water storage tank 5 through the cooling return mechanism 6.

[0027] One end of the descaling mechanism 7 is connected to the No. 1 tee connector 2 and the other end is connected to the No. 2 tee connector 3. When cleaning scale, the descaling mechanism 7 circulates the descaling agent in the extrusion die head body 1 for about half an hour. The descaling agent dissolves the scale in the extrusion die head body 1. At the same time, the descaling agent is always in a flowing state, which can flush the scale to a certain extent and improve the descaling efficiency.

[0028] The outer surface of the water storage tank 5 is provided with a honeycomb hole structure 501. The honeycomb hole structure 501 increases the surface area of ​​the water storage tank 5, making it more in contact with the air and improving the heat dissipation efficiency.

[0029] See Figure 6 , Figure 7The top of the water tank 5 is open to allow heat to dissipate. Dustproof plates 8 and ventilation dustproof nets 9 are rotatably connected to the left and right sides of the water tank 5, respectively. The lower end of the dustproof plate 8 is fixed with a first rotating shaft 801, which is rotatably connected to the left side wall of the water tank 5. A first handle 802 is fixed on the dustproof plate 8. The lower end of the ventilation dustproof net 9 is fixed with a second rotating shaft 901, which is rotatably connected to the right side wall of the water tank 5. A second handle 902 is fixed on the ventilation dustproof net 9. When the extrusion die head 1 is not working and does not need to be cooled, the dustproof plate 8 is placed on top of the water tank 5 to prevent external dust from falling into the water. When the extrusion die head 1 is working, the dustproof plate 8 is removed and the ventilation dustproof net 9 is placed on top of the water tank 5. Airflow can pass through the ventilation dustproof net 9 to carry away the heat inside the water tank 5. At the same time, the ventilation dustproof net 9 can also filter dust in the air, reducing dust falling into the water.

[0030] See Figure 4 The cold water conveying mechanism 4 includes: a water pump 401, an industrial chiller 402, an input pipe 403, and a first solenoid valve 404. The suction end of the water pump 401 is connected to the water storage tank 5 through a pipe, and the outlet end of the water pump 401 is connected to the inlet end of the industrial chiller 402 through a pipe. The outlet end of the industrial chiller 402 is connected to the No. 1 tee connector 2 through the input pipe 403. The first solenoid valve 404 is installed on the input pipe 403. When in use, the first solenoid valve 404 is opened, and the water pump 401 draws water from the water storage tank 5 and delivers it to the industrial chiller 402. The industrial chiller 402 cools the water and then delivers it from the input pipe 403 to the No. 1 tee connector 2. From the No. 1 tee connector 2, the water flows into the inlet pipe 101 and the spiral guide groove 103, where the cold water carries away the heat on the extrusion die head body 1.

[0031] See Figure 4 The cooling return mechanism 6 includes a serpentine return pipe 601, a second solenoid valve 602, and heat dissipation fins 603. The first end of the serpentine return pipe 601 is connected to the No. 2 tee connector 3, and the tail end of the serpentine return pipe 601 is connected to the water storage tank 5. The second solenoid valve 602 is installed on the serpentine return pipe 601, and multiple heat dissipation fins 603 are fixed on the serpentine return pipe 601. The heat dissipation fins 603 increase the contact area between the serpentine return pipe 601 and the air, thereby improving the heat dissipation effect. The serpentine design of the serpentine return pipe 601 increases the time that the water flows inside it, thereby improving the heat dissipation effect. The hot water discharged from the spiral guide channel 103 flows back to the water storage tank 5 through the serpentine return pipe 601 and the heat dissipation fins 603, thereby reducing the temperature of the water flowing back into the water storage tank 5.

[0032] Both the serpentine reflux tube 601 and the heat dissipation fins 603 are made of copper, giving them excellent thermal conductivity.

[0033] See Figure 5 The descaling mechanism 7 includes: a medicine tank 701, a circulating pump 702, a medicine delivery pipe 703, a third solenoid valve 704, a return pipe 705, and a fourth solenoid valve 706. The medicine tank 701 stores the descaling agent. The suction port of the circulating pump 702 is connected to the medicine tank 701 via a pipe. The outlet of the circulating pump 702 is connected to the second tee connector 3 via the medicine delivery pipe 703. The third solenoid valve 704 is installed on the medicine delivery pipe 703. The upper end of the return pipe 705 is connected to the first tee connector 3. The lower end of the three-way connector 2 is connected to the medicine tank 701. A fourth solenoid valve 706 is installed on the return pipe 705. When using it, first add the descaling agent into the medicine tank 701, open the third solenoid valve 704 and the fourth solenoid valve 706, and the descaling agent in the medicine tank 701 is transported from the guide pipe 703 to the spiral guide channel 103 through the circulation pump 702, thereby dissolving the scale in the spiral guide channel 103. The descaling agent then flows back into the medicine tank 701 from the return pipe 705. This circulation is carried out for about half an hour.

[0034] The medicine tank 701 is equipped with a dosing port 7011 for adding descaling agent. An end cap 7012 is detachably installed on the dosing port 7011. A drain port 7013 is provided at the lower end of the medicine tank 701. A plug 7014 is detachably installed on the drain port 7013. After descaling is completed, the plug 7014 is removed to drain the wastewater in the medicine tank 701.

[0035] A PLC controller 10 is installed on the ground on one side of the cold water conveying mechanism 4. The water pump 401, industrial chiller 402, first solenoid valve 404, second solenoid valve 602, circulating pump 702, third solenoid valve 704, and fourth solenoid valve 706 are all controlled by the PLC controller 10.

[0036] Working principle: When the extrusion die head body 1 needs to be cooled, the first solenoid valve 404 and the second solenoid valve 602 are opened, and the third solenoid valve 704 and the fourth solenoid valve 706 are closed. Water is pumped from the water storage tank 5 by the water pump 401 and delivered to the industrial chiller 402. The industrial chiller 402 cools the water and then delivers it from the inlet pipe 403 to the No. 1 tee connector 2. From the No. 1 tee connector 2, the water flows to the inlet pipe 101 and the spiral... Within the guide channel 103, cold water carries away the heat from the extrusion die head body 1. Hot water flows back to the water storage tank 5 through the serpentine return pipe 601. The heat dissipation fins 603 increase the contact area between the serpentine return pipe 601 and the air, improving the heat dissipation effect. The serpentine design of the serpentine return pipe 601 increases the time the water flows inside, further enhancing the heat dissipation effect. At this point, the dustproof plate 8 is removed and moved to one side, and the ventilation dustproof net 9 is placed on top of the water storage tank 5. The airflow can then... The heat in the water storage tank 5 is carried away by the ventilation and dustproof mesh 9. At the same time, the surface area of ​​the water storage tank 5 is increased by the honeycomb structure 501, which increases the contact area with air, improves heat dissipation efficiency, and quickly reduces the water temperature in the water storage tank 5, thereby reducing the cooling capacity of the subsequent industrial chiller 402. After a period of use, the scale in the spiral guide channel 103 is cleaned. At this time, the first solenoid valve 404 and the second solenoid valve 602 are closed, and the third solenoid valve 704 and the fourth solenoid valve 706 are opened. First, the descaling agent is added to the medicine tank 701. Then, the third solenoid valve 704 and the fourth solenoid valve 706 are opened. The descaling agent in the medicine tank 701 is transported from the medicine guide pipe 703 to the spiral guide channel 103 by the circulation pump 702, thereby dissolving the scale in the spiral guide channel 103. The descaling agent then flows back to the medicine tank 701 from the return pipe 705. This circulation is carried out for about half an hour. Finally, the plug 7014 is removed and the wastewater in the medicine tank 701 is discharged.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water-cooling device for an extrusion die head, characterized in that, The device includes an extrusion die head body (1), a No. 1 tee connector (2), a No. 2 tee connector (3), a cold water conveying mechanism (4), a water storage tank (5), a cooling reflux mechanism (6), a descaling mechanism (7), a dustproof plate (8), and a ventilation and dustproof net (9). The extrusion die head body (1) is provided with a spiral guide groove (103). The left end of the extrusion die head body (1) is equipped with a water inlet pipe (101) connected to the spiral guide groove (103), and the right end of the extrusion die head body (1) is equipped with a water outlet pipe (102) connected to the spiral guide groove (103). The No. 1 tee connector is connected to the water inlet pipe (101). (2) A No. 2 three-way connector (3) is connected to the water outlet pipe (102). One end of the cold water conveying mechanism (4) is connected to the water storage tank (5) and the other end is connected to the No. 1 three-way connector (2). Tap water is stored in the water storage tank (5). One end of the cooling return mechanism (6) is connected to the No. 2 three-way connector (3) and the other end is connected to the water storage tank (5). One end of the descaling mechanism (7) is connected to the No. 1 three-way connector (2) and the other end is connected to the No. 2 three-way connector (3). The top of the water storage tank (5) is open. Dustproof plates (8) and ventilation dustproof nets (9) are rotatably connected to the left and right sides of the water storage tank (5).

2. The water-cooling device for extrusion die head according to claim 1, characterized in that, The outer side of the water storage tank (5) is provided with a honeycomb hole structure (501).

3. The water-cooling device for extrusion die head according to claim 1, characterized in that, The lower end of the dustproof plate (8) is fixed with a first rotating shaft (801), which is rotatably connected to the left side wall of the water storage tank (5). The dustproof plate (8) is fixed with a first handle (802). The lower end of the ventilation dustproof net (9) is fixed with a second rotating shaft (901), which is rotatably connected to the right side wall of the water storage tank (5). The ventilation dustproof net (9) is fixed with a second handle (902).

4. The water-cooling device for extrusion die head according to claim 1, characterized in that, The cold water conveying mechanism (4) includes: a water pump (401), an industrial chiller (402), an input pipe (403), and a first solenoid valve (404). The suction end of the water pump (401) is connected to the water storage tank (5) through a pipe. The outlet end of the water pump (401) is connected to the inlet end of the industrial chiller (402) through a pipe. The outlet end of the industrial chiller (402) is connected to the No. 1 three-way connector (2) through the input pipe (403). The first solenoid valve (404) is installed on the input pipe (403).

5. The water-cooling device for extrusion die head according to claim 1, characterized in that, The cooling reflux mechanism (6) includes: a serpentine reflux pipe (601), a second solenoid valve (602), and heat dissipation fins (603). The first end of the serpentine reflux pipe (601) is connected to a No. 2 tee connector (3), and the tail end of the serpentine reflux pipe (601) is connected to a water storage tank (5). The second solenoid valve (602) is installed on the serpentine reflux pipe (601), and multiple heat dissipation fins (603) are fixed on the serpentine reflux pipe (601).

6. The water-cooling device for extrusion die head according to claim 5, characterized in that, Both the serpentine return tube (601) and the heat dissipation fins (603) are made of copper.

7. The water-cooling device for extrusion die head according to claim 1, characterized in that, The descaling mechanism (7) includes: a medicine tank (701), a circulating pump (702), a medicine guide pipe (703), a third solenoid valve (704), a return pipe (705), and a fourth solenoid valve (706). The medicine tank (701) is used to store descaling agent. The suction port of the circulating pump (702) is connected to the medicine tank (701) through a pipe. The outlet of the circulating pump (702) is connected to the No. 2 three-way connector (3) through the medicine guide pipe (703). The third solenoid valve (704) is installed on the medicine guide pipe (703). The upper end of the return pipe (705) is connected to the No. 1 three-way connector (2), and the lower end is connected to the medicine tank (701). The fourth solenoid valve (706) is installed on the return pipe (705).

8. The water-cooling device for extrusion die head according to claim 7, characterized in that, The medicine box (701) is provided with a medicine inlet (7011), and an end cap (7012) is detachably installed on the medicine inlet (7011). The lower end of the medicine box (701) is provided with a drain outlet (7013), and a plug (7014) is detachably installed on the drain outlet (7013).

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