A quenching water tank with circulating cooling

Abstract

The present application relates to a circulating cooling quenching water tank, which relates to the field of quenching equipment, and includes a quenching water tank, a reflux pipe is provided on the side wall of the quenching water tank, the reflux pipe is connected to a cooling water tank on the side away from the quenching water tank, a cooling component 1 is provided in the cooling water tank, the cooling water tank is connected to the quenching water tank through a return pipe, a cooling component 2 is provided on the return pipe, the water temperature of the cooling component 2 after cooling is lower than the water temperature required for quenching the aluminum alloy frame, and a stirring component is provided in the quenching water tank. The present application has the effect of making the water temperature of the aluminum alloy frames in the batch the same during quenching, the performance of the aluminum alloy frames in the batch after quenching the same, and improving the yield rate of the aluminum alloy frames in the batch.

Description

Technical Field

[0001] The present application relates to the field of quenching equipment, and in particular to a circulating cooling quenching water tank. Background Art

[0002] At present, in the heat treatment of aluminum alloy frames, the aluminum alloy frames need to be heated in a solid melting furnace. In order to improve the mechanical properties of the aluminum alloy frames, the aluminum alloy frames need to be quenched, and the quenching medium of the aluminum alloy frames is often water.

[0003] A common quenching process for aluminum alloy frames is to place the heated aluminum alloy frames into a water tank filled with water, and then use water to cool the aluminum alloy frames, so that the metal phase of the aluminum alloy frames changes, thereby improving the mechanical properties of the aluminum alloy frames. However, in the batch production of aluminum alloy frames, after one aluminum alloy frame is quenched, the water temperature in the water tank increases, so the quenching water temperature of the next aluminum alloy frame increases, resulting in different mechanical properties of the aluminum alloy frames in the batch, resulting in more defective aluminum alloy frames in the batch, which is not conducive to the batch production of aluminum alloy frames. Summary of the invention

[0004] In order to improve the problem of a large number of defective aluminum alloy frames caused by different quenching water temperatures of aluminum alloy frames in batches, the present application provides a circulating cooling quenching water tank.

[0005] The present application provides a circulating cooling quenching water tank adopts the following technical solution:

[0006] A circulating cooling quenching water tank comprises a quenching water tank, a reflux pipe is arranged on the side wall of the quenching water tank, the reflux pipe is connected to a cooling water tank on the side away from the quenching water tank, a cooling component 1 is arranged in the cooling water tank, the cooling water tank and the quenching water tank are connected by a return pipe, a cooling component 2 is arranged on the return pipe, the water temperature after cooling by the cooling component 2 is lower than the water temperature required for quenching an aluminum alloy frame, and a stirring component is arranged in the quenching water tank.

[0007] By adopting the above technical scheme, when quenching the aluminum alloy frames in batches, after the quenching of the first aluminum alloy frame is completed, the water in the quenching water tank flows into the cooling water tank from the return pipe, the cooling component 1 performs the initial cooling on the water to make the water close to the room temperature, the water after the initial cooling flows into the return pipe, and then the cooling component 2 cools the water in the return pipe to make the water temperature lower than the room temperature, and then the water is returned to the quenching water tank through the return pipe, and then the cold water is mixed with the original water by the stirring component, so that the water temperature in the quenching water tank reaches the temperature before quenching, so that the water temperature of the aluminum alloy frames in the same batch is the same during quenching, thereby improving the yield rate of the aluminum alloy frames.

[0008] In a specific feasible implementation, a shunt pipe communicated with the reflux pipe is arranged in the cooling water tank, and water outlet holes are arranged on the shunt pipe;

[0009] The first cooling component includes a plurality of groups of water distribution plates rotatably arranged on the side wall of the cooling water tank. The plurality of groups of water distribution plates are located at the water outlet holes and are arranged along the water flow direction. The number of each group of water distribution plates is two, and a gap is arranged between each two water distribution plates in each group. The gaps between different groups of water distribution plates gradually decrease along the water flow direction.

[0010] By adopting the above technical solution, when part of the water in the quenching water tank enters the cooling water tank, the water flows out from the water outlet through the shunt pipe. Part of the flowing water flows to both sides along the water distribution plates, and part of the water flows onto another group of water distribution plates through the gap between the two water distribution plates. The water is hierarchically guided to both sides by different groups of water distribution plates to increase the contact area between the water and the air, thereby accelerating the heat exchange between the water and the air and accelerating the cooling rate of the water.

[0011] In a specific feasible implementation, a driving rod is slidably arranged in the cooling water tank. One end of the driving rod is fixedly provided with a telescopic spring, and the telescopic spring is fixedly connected to the cooling water tank at the end far from the driving rod. Each water distribution plate is connected to the driving rod through a connecting rod. One end of the connecting rod is rotatably arranged with the water distribution plate, and the other end of the connecting rod is rotatably arranged with the driving rod. A driving unit is arranged on the cooling water tank;

[0012] The driving unit includes a driving motor and a driving wheel. The driving wheel is coaxially arranged at the output shaft end of the driving motor. A driven wheel is rotatably arranged on the cooling water tank. The driving wheel and the driven wheel are connected by a conveyor belt. A push block for pushing the driving rod to squeeze the telescopic spring to contract is arranged on the conveyor belt.

[0013] By adopting the above technical solution, when the water flows along the water distribution plates, the driving motor rotates. The driving motor drives the conveyor belt to rotate around the driving wheel and the driven wheel through the driving wheel. The conveyor belt drives the push block to push the driving rod to move. The driving rod squeezes the telescopic spring to contract. At this time, the two water distribution plates rotate towards the driving rod respectively. When the push block slides to the arc section, the push block disengages from the driving rod, and the driving rod quickly moves upward under the push of the telescopic spring. The driving rod drives the water distribution plates to strike the water flow upward through the connecting rod, so that the water flow is scattered upward. This will not only increase the contact area between the water and the air, but also reduce the falling speed of the water, delay the falling time of the water, improve the heat exchange time between the water and the air, and thus improve the water cooling effect.

[0014] In a specific feasible implementation, a cooling fan is provided on the cooling water tank. The air outlet of the cooling fan faces the water distribution plate. A filter screen is provided at the air inlet of the cooling fan, and a ventilation opening is provided on the top wall of the cooling water tank.

[0015] By adopting the above technical solution, the cooling fan is used to perform air-cooled heat dissipation on the water in the cooling water tank. The air after heat exchange is discharged from the ventilation opening, which improves the cooling speed of the water. At the same time, the gas blown into the cooling fan is filtered by the filter screen, effectively avoiding the influence of dust and suspended matter in the air on the quenching of the aluminum alloy frame.

[0016] In a specific feasible implementation, the second cooling component includes a first cooling pipe and a second cooling pipe. The first cooling pipe is wound around the outer side wall of the return pipe, the second cooling pipe is placed inside the return pipe, and a coolant is passed through both the first cooling pipe and the second cooling pipe. Both ends of the second cooling pipe extend out of the return pipe respectively.

[0017] By adopting the above technical solution, after being cooled by the cooling water tank, the water flows along the return pipe. The first cooling pipe cools the part of the water flow close to the return pipe through the coolant, and the second cooling pipe cools the position of the center of the water flow through the coolant, so that the temperature of the water in the return pipe is lower than the room temperature.

[0018] In a specific feasible implementation, the second cooling pipe and the return pipe are slidably arranged. A cooling inlet pipe and a cooling outlet pipe are communicated with the return pipe. Both ends of the second cooling pipe are respectively inserted into the cooling inlet pipe and the cooling outlet pipe and are slidably arranged. An electric cylinder for driving the second cooling pipe to slide radially along the return pipe is provided on the return pipe.

[0019] By adopting the above technical solution, when the second cooling pipe cools the water in the return pipe, the electric cylinder drives the second cooling water pipe to slide. At this time, both ends of the cooling water pipe slide along the cooling inlet pipe and the cooling outlet pipe respectively, and the second cooling water pipe slides radially along the return pipe. By the sliding of the second cooling water pipe, the disturbance degree of the water flow in the return pipe is increased, and the cooling speed of the water in the return pipe is improved.

[0020] In a specific feasible implementation, the stirring component includes a stirring motor. A stirring shaft is provided on the output shaft of the stirring motor. The stirring shaft is inserted into the quenching water tank and is rotatably arranged with the quenching water tank. A stirring paddle is provided at one end of the stirring shaft inserted into the quenching water tank.

[0021] By adopting the above technical solution, when the cooling water returns from the return pipe into the quenching water tank, the stirring motor is started at this time. The stirring motor drives the stirring paddle to rotate through the stirring shaft, and the stirring paddle stirs the cooling water and the original water in the quenching water tank, thereby improving the uniformity of the water temperature in the quenching water tank and improving the quenching effect of the aluminum alloy frame.

[0022] In a specific feasible embodiment, a receiving groove is provided inside the stirring shaft, a stirring rod for inserting into the receiving groove is slidably provided on the stirring shaft, a stirring spring is provided on the stirring rod, one end of the stirring spring away from the stirring rod is connected to the bottom wall of the receiving groove, a stirring blade is provided on the stirring rod, and a placing groove for the stirring blade to insert is provided on the stirring paddle.

[0023] By adopting the above technical solution, after the water temperature in the quenching water tank is adjusted, the aluminum alloy frame is placed into the quenching water tank. The aluminum alloy frame presses the stirring rod, and the stirring rod squeezes the stirring spring to contract. At this time, the stirring rod contracts into the receiving groove. At the same time, the stirring rod drives the stirring blade to insert into the placing groove, thus effectively avoiding the influence of the stirring rod on the quenching of the aluminum alloy frame. When the quenching of the aluminum alloy frame is completed, the aluminum alloy frame is lifted, and the stirring rod extends out of the receiving groove under the push of the stirring spring, and the stirring blade also extends out of the placing groove, realizing the convenience of the telescopic movement of the stirring rod and the stirring blade.

[0024] In a specific feasible embodiment, a collecting pipe is provided on the side wall of the quenching water tank, collecting through holes are provided on the collecting pipe, a suction fan is provided on the quenching water tank, the suction end of the suction fan is communicated with the collecting pipe, a condensation chamber is provided at the output end of the suction fan, and a water guide pipe is communicated with the condensation chamber, and the water guide pipe is communicated with the shunt pipe.

[0025] By adopting the above technical solution, when the aluminum alloy frame is quenched, a large amount of steam will be generated when the aluminum alloy frame contacts the water. At this time, the suction fan is started, and the suction fan sucks away the generated steam through the collecting pipe and the collecting through holes, and then discharges it into the condensation chamber, thus effectively avoiding the corrosion of the surrounding equipment by the steam. The steam entering the condensation chamber is condensed, and the condensed water enters the shunt pipe through the water guide pipe, thus realizing the condensation and recycling of the steam and reducing the makeup water volume of the quenching water tank.

[0026] In a specific feasible embodiment, a makeup water pipe is provided on the quenching water tank, and a makeup water pump is provided on the makeup water pipe.

[0027] By adopting the above technical solution, when the aluminum alloy frame is quenched, part of the water in the quenching water tank will evaporate into steam, resulting in a reduction in the water volume in the quenching water tank. The makeup water pump drives the externally added water to enter the quenching water tank through the makeup water pipe to replenish the quenching water tank, thus effectively avoiding the influence of the reduction in the water volume in the quenching water tank on the quenching of the aluminum alloy frame.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. When quenching batches of aluminum alloy frames, after the previous aluminum alloy frame is quenched, part of the water in the quenching water tank flows into the cooling water tank through the return pipe. Then, the cooling component cools the water in the cooling water tank. After that, the cooled water enters the return pipe, and the water in the return pipe is cooled again by the second cooling component, making the water in the return pipe lower than the normal temperature. The cooling water flows along the return pipe into the quenching water tank, and then the stirring component mixes the cooling water with the original water, so that the water temperature in the quenching water tank is cooled to the temperature before quenching, ensuring that the water temperature during quenching of the aluminum alloy frames in the batch is the same, ensuring that the properties of the aluminum alloy frames in the batch after quenching are the same, and improving the yield rate of the aluminum alloy frames in the batch;

[0030] 2. When the aluminum alloy frame enters the quenching water tank for quenching, a large amount of steam will be generated around the aluminum alloy frame. The steam is sucked into the collection pipe by the suction fan, and then the steam is introduced into the condensation chamber. The condensation chamber condenses the steam, and the condensed water enters the shunt pipe through the water guide pipe, thus realizing the absorption of the steam, effectively avoiding the corrosion of the equipment around the quenching water tank by the steam, and at the same time realizing the recycling of the steam;

[0031] 3. The water pump sucks the water from the outside and discharges it into the quenching water tank through the make-up water pipe, thus realizing the replenishment of the water volume in the quenching water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of a quenching water tank with circulating cooling according to an embodiment of the present application.

[0033] Figure 2 is along Figure 1 the sectional view taken along line A-A in

[0034] Figure 3 is Figure 2 the enlarged view of part B in

[0035] Figure 4 is Figure 3 the enlarged view of part C in

[0036] Figure 5 is an exploded view for showing the cooling fan.

[0037] Figure 6 is a schematic structural diagram for showing the drive motor.

[0038] Figure 7 is Figure 1 the enlarged view of part D in

[0039] Figure 8 is Figure 1 the enlarged view of part E in

[0040] Description of the reference numerals: 1. Quenching water tank; 11. Return pipe; 12. Cooling water tank; 13. Valve; 14. Return pipe; 2. Cooling component I; 21. Diverging pipe; 211. Water outlet hole; 22. Water distribution plate; 221. Gap; 231. Sliding groove; 232. Driving rod; 233. Driving groove; 234. Connecting rod; 235. Telescopic spring; 24. Driving unit; 241. Driving motor; 242. Driving wheel; 243. Driven wheel; 244. Conveyor belt; 245. Baffle; 246. Pushing block; 25. Cooling fan; 26. Filter screen; 27. Water collecting tank; 271. Ventilation opening; 3. Cooling component II; 31. Support platform; 311. Cooling water pump; 312. Freezing water tank; 32. Cooling pipe I; 33. Cooling pipe II; 341. Water outlet pipe; 342. Cooling inlet pipe; 343. Cooling outlet pipe; 344. Electric cylinder; 4. Stirring component; 41. Stirring motor; 42. Stirring shaft; 43. Stirring paddle; 44. Accommodating groove; 45. Stirring rod; 46. Stirring spring; 47. Stirring blade; 48. Placing groove; 51. Collection pipe; 52. Collection through hole; 53. Support frame; 54. Suction fan; 55. Condensing chamber; 56. Water guide pipe; 61. Make-up water pipe; 62. Make-up water pump. Detailed implementation manners

[0041] The following further elaborates on this application Figure 1-8 in conjunction with the attached drawings.

[0042] The embodiment of this application discloses a quenching water tank with circulating cooling.

[0043] Referring to Figure 1 and Figure 2 , a quenching water tank with circulating cooling includes a quenching water tank 1. A return pipe 11 is provided on the side wall of the quenching water tank 1. The return pipe 11 is located 200 mm below the water surface in the quenching water tank 1. The end of the return pipe 11 away from the quenching water tank 1 is communicatively connected to a cooling water tank 12. The outlet of the return pipe 11 is located on the top wall of the cooling water tank 12. A valve 13 is provided on the return pipe 11. A cooling component I 2 is provided in the cooling water tank 12. The cooling component I 2 cools the water in the cooling water tank 12 to normal temperature. The bottom of the cooling water tank 12 is communicatively connected to a return pipe 14. The return pipe 14 conveys water through a water pump. The end of the return pipe 14 away from the cooling water tank 12 is communicatively connected to the quenching water tank 1. The return pipe 14 is located above the water surface in the quenching water tank 1. A cooling component II 3 for cooling the water below normal temperature is provided on the return pipe 14. A stirring component 4 is provided in the quenching water tank 1.

[0044] When quenching batches of aluminum alloy frames, after the quenching of the previous aluminum alloy frame is completed, the valve 13 on the return pipe 11 is opened, and the water in the quenching water tank 1 flows into the cooling water tank 12 along the return pipe 11. The first cooling component 2 cools the water in the cooling water tank 12 to room temperature, and then the water in the cooling water tank 12 flows into the return pipe 14. The second cooling component 3 cools the water in the return pipe 14 to below room temperature. The specific water temperature is set according to the water flow rate and the quenching temperature of the aluminum alloy frame. The cooling water flows into the quenching water tank 1 along the return pipe 14, and then the stirring component 4 mixes the cooling water with the water in the original quenching water tank 1, so that the water temperature in the quenching water tank 1 drops to the temperature before quenching, thereby ensuring that the water temperature during the quenching of each aluminum alloy frame in the batch is the same, so as to ensure that the properties of each aluminum alloy frame after quenching are the same, effectively avoiding the influence of different quenching water temperatures on the yield rate of aluminum alloy frames, and improving the yield rate of aluminum alloy frames.

[0045] Refer to Figure 1 , a water replenishing pipe 61 is provided on the quenching water tank 1, and the other end of the water replenishing pipe 61 is connected with a water replenishing pump 62; the water replenishing pump 62 is used to replenish water into the quenching water tank 1, so as to ensure the stability of the water volume in the quenching water tank 1.

[0046] Refer to Figure 2 , Figure 3 and Figure 4 , a shunt pipe 21 is provided at the top of the cooling water tank 12, and the shunt pipe 21 is communicated with the return pipe 11. A number of water outlet holes 211 are provided on the shunt pipe 21, and the water outlet holes 211 are strip-shaped holes with openings facing downwards. In this embodiment, the first cooling component 2 includes several rows of water distribution plates 22. Each water outlet hole 211 corresponds to a row of water distribution plates 22. The number of each row of water distribution plates 22 is several groups, and several groups of water distribution plates 22 are arranged vertically. The number of each group of water distribution plates 22 is two. Each water distribution plate 22 is rotatably arranged with the cooling water tank 12 through a rotating shaft. A gap 221 is provided between the two water distribution plates 22 in each group. The gaps 221 between different groups of water distribution plates 22 gradually decrease from top to bottom. A number of sliding grooves 231 are provided on the side wall of the cooling water tank 12, and the sliding grooves 231 correspond to the water outlet holes 211 one by one. Each sliding groove 231 is arranged along the vertical direction of the cooling water tank 12. A driving rod 232 for sliding in the sliding groove 231 is provided on the side wall of the cooling water tank 12, and the driving rod 232 corresponds to the sliding groove 231 one by one. A driving groove 233 communicated with the sliding groove 231 is provided at the bottom of the side wall of the cooling water tank 12. A number of connecting rods 234 are hinged on the driving rod 232, and the connecting rods 234 correspond to the water distribution plates 22 in the same row one by one. The connecting rod 234 is hinged to the water distribution plate 22 at the end far from the driving rod 232. A telescopic spring 235 is provided on the bottom side wall of the driving groove 233. One end of the telescopic spring 235 is fixedly connected with the side wall of the driving groove 233, and the other end of the telescopic spring 235 is fixedly connected with the driving rod 232.

[0047] Referring to Figure 4 、 Figure 5 and Figure 6 ,a plurality of sets of driving units 24 are provided on the cooling water tank 12, and the driving units 24 correspond to the driving rods 232 one by one. The driving unit 24 includes a driving motor 241 and a driving wheel 242. The driving motor 241 is arranged on the outer side wall of the cooling water tank 12. The output shaft of the driving motor 241 is inserted into the driving groove 233 and is rotatably arranged with the cooling water tank 12. The driving wheel 242 is coaxially and fixedly arranged at one end of the driving motor 241 extending into the driving groove 233. A driven wheel 243 is rotatably arranged on the side wall of the driving groove 233. A conveyor belt 244 is connected between the driven wheel 243 and the driving wheel 242. The conveyor belt 244 is arranged along the vertical direction. A baffle 245 is provided on the driving rod 232. A push block 246 for pushing the baffle 245 to drive the driving rod 232 to move downward is provided on the conveyor belt 244. At this time, the telescopic spring 235 contracts.

[0048] Referring to Figure 5 ,a cooling fan 25 is provided on the side wall of the cooling water tank 12. The outlet of the cooling fan 25 is communicated with the cooling water tank 12. The cooling fan 25 is located on the side of the driving motor 241. A filter screen 26 is provided at the air inlet of the cooling fan 25. A water collecting tank 27 is provided on the side of the cooling water tank 12 away from the cooling fan 25. The water collecting tank 27 is communicated with the cooling water tank 12. The water collecting tank 27 slopes downward from top to bottom towards the cooling water tank 12 on the side away from the cooling water tank 12. A ventilation opening 271 is provided at the top of the water collecting tank 27.

[0049] When the water in the quenching water tank 1 flows into the cooling water tank 12 through the return pipe 11, and then is divided into several strands and flows downward from the water outlet holes 211 through the diversion of the diversion pipe 21. During the falling process of the flowing water, part of the water is diverted to both sides through the water diversion plate 22, and the remaining water flows to the next group of water diversion plates 22 along the gap 221. In this way, the water is continuously diverted, so as to increase the contact area between the water and the air and improve the cooling speed of the water.

[0050] When the water flows on the water diversion plate 22, the driving motor 241 drives the driving wheel 242 to rotate, the driving wheel 242 drives the conveyor belt 244 to rotate, the conveyor belt 244 drives the push block 246 to push the baffle 245 to move downward, the baffle 245 drives the driving rod 232 to move downward and squeezes the telescopic spring 235 to expand and contract. When the push block 246 moves to the arc section of the conveyor belt 244, the push block 246 is separated from the baffle 245, and the driving rod 232 quickly moves upward under the push of the telescopic spring 235. The driving rod 232 drives the water diversion plate 22 to rotate suddenly upward through the connecting rod 234. The water diversion plate 22 strikes the water flow upward, while breaking the water flow, prolonging the falling time of the water flow, so as to increase the heat exchange area and time between the water flow and the air, so that the water flow can be fully cooled.

[0051] When the water flow descends in the cooling water tank 12, the cooling water tank 12 is blown by the cooling fan 25 to increase the heat exchange speed between water and air and improve the cooling rate of the water flow; the filter screen 26 is used to filter the air blown into the cooling water tank 12 by the cooling fan 25, effectively preventing the water from being polluted by dust and suspended particles in the air, and the air is discharged from the ventilation port 271 after heat exchange with the water.

[0052] Refer to Figure 1 、 Figure 7 and Figure 8 As shown in

[0053] On the ground, there is a support platform 31 located at the return pipe 14. A cooling water pump 311 and a freezing water tank 312 are arranged on the support platform 31. In this embodiment, the second cooling component 3 includes a first cooling pipe 32 and a second cooling pipe 33. The outlet end of the cooling water pump 311 is provided with a water outlet pipe 341. The inlet of the cooling water pump 311 is communicated with the freezing water tank 312 through a pipeline. A cooling inlet pipe 342 and a cooling outlet pipe 343 are arranged on the return pipe 14. The cooling inlet pipe 342 and the first cooling pipe 32 are both communicated with the water outlet pipe 341. The cooling outlet pipe 343 is communicated with the freezing water tank 312. The first cooling pipe 32 is wound around the return pipe 14, and the other end of the first cooling pipe 32 is communicated with the cooling outlet pipe 343. The second cooling pipe 33 is located inside the return pipe 14 and is arranged along the axial direction of the return pipe 14. The two ends of the second cooling pipe 33 are bent to form two folded pipes. The two ends of the second cooling pipe 33 respectively pass through the return pipe 14 and are slidably arranged with the return pipe 14. The two ends of the second cooling pipe 33 are respectively inserted into the cooling inlet pipe 342 and the cooling outlet pipe 343, and the second cooling pipe 33 is slidably arranged with the cooling inlet pipe 342 and the cooling outlet pipe 343. Two electric cylinders 344 are arranged on the support platform 31, and the two electric cylinders 344 are respectively located at the two ends of the second cooling pipe 33. The output shaft of the electric cylinder 344 is fixedly arranged with the second cooling pipe 33. Coolant is passed through both the first cooling pipe 32 and the second cooling pipe 33. The coolant in this embodiment is ice water with a temperature of 4°C, and the freezing water tank 312 cools the water temperature to 4°C to form ice water.

[0053] When the water flows from the cooling water tank 12 into the return pipe 14, the cooling water pump 311 is started. The cooling water pump 311 transports the coolant in the cooling water tank 12 into the first cooling pipe 32 and the second cooling pipe 33. The second cooling pipe 33 cools the outer part of the water flow in the return pipe 14, and the second cooling pipe 33 cools the central part of the water flow in the return pipe 14. Then, the electric cylinder 344 is driven to move, and the electric cylinder 344 drives the second cooling pipe 33 to move radially along the return pipe 14. In addition to increasing the turbulence degree of the water flow in the return pipe 14, the contact area between the second cooling pipe 33 and the water flow is increased, thereby improving the cooling rate of the water in the return pipe 14 and making the water in the return pipe 14 cooled more evenly.

[0054] Refer to Figure 1 、Figure 2 In this embodiment, the stirring assembly 4 includes a stirring motor 41. The stirring motor 41 is located below the quenching water tank 1, and the output shaft of the stirring motor 41 is arranged upward. A stirring shaft 42 is fixedly provided at the end of the output shaft of the stirring motor 41. The stirring shaft 42 is inserted into the quenching water tank 1 and is rotatably arranged with the quenching water tank 1. Stirring paddles 43 are provided on the stirring shaft 42. The stirring paddles 43 are located on one side of the quenching water tank 1 close to the bottom wall. A receiving groove 44 is provided on the upper end surface of the stirring shaft 42. The cross-section of the receiving groove 44 is rectangular. Stirring rods 45 for inserting into the receiving groove 44 are provided on the stirring shaft 42. The stirring rods 45 are in concave-convex fit with the receiving groove 44 and are slidably arranged. A stirring spring 46 is provided between the stirring rods 45 and the bottom wall of the receiving groove 44. One end of the stirring spring 46 is fixedly provided with the stirring rod 45, and the other end of the stirring spring 46 is fixedly connected to the bottom wall of the receiving groove 44. Stirring blades 47 are provided on the stirring rods 45. Placement grooves 48 for inserting the stirring blades 47 are provided on the stirring paddles 43. The placement grooves 48 are communicated with the receiving groove 44.

[0055] When the cooled cooling water flows back into the quenching water tank 1 from the return pipe 14, the cooling water flows into the quenching water tank 1 from the top, and then the stirring motor 41 is started. The stirring motor 41 drives the stirring shaft 42 and the stirring rods 45 to rotate. The stirring shaft 42 drives the stirring paddles 43 to rotate, and the stirring rods 45 drive the stirring blades 47 to rotate. The stirring paddles 43 and the stirring blades 47 stir the cooling water and the original water in the quenching water tank 1, so as to improve the rapid mixing of the cooling water and improve the uniformity of the water temperature in the quenching water tank 1.

[0056] When the aluminum alloy frame is quenched, when the aluminum alloy frame falls into the quenching water tank 1, the aluminum alloy frame presses down on the stirring rods 45, and the stirring rods 45 contract into the receiving groove 44. At the same time, the stirring rods 45 press the stirring springs 46 to contract. As the aluminum alloy frame continues to descend, the stirring rods 45 drive the stirring blades 47 to insert into the placement grooves 48, so as to effectively avoid the influence of the stirring rods 45 on the quenching of the aluminum alloy frame and provide convenience for stirring the water in the quenching water tank 1.

[0057] Refer to Figure 1 、 Figure 2 On the inner side wall of the quenching water tank 1, a collecting pipe 51 is provided. The collecting pipe 51 is arranged in a circle along the circumference of the quenching water tank 1. The collecting pipe 51 is located at the open end of the quenching water tank 1. A number of collecting through holes 52 are provided on the collecting pipe 51. The cooling water tank 12 is provided with a support frame 53. An air suction fan 54 is provided on the support frame 53. The suction end of the air suction fan 54 is communicated with the collecting pipe 51 through a pipeline. A condensation chamber 55 is provided on the support frame 53. The output end of the air suction fan 54 is communicated with the condensation chamber 55. A water guide pipe 56 is provided at the bottom of the condensation chamber 55. The water guide pipe 56 is communicated with the return pipe 11.

[0058] When the aluminum alloy frame is quenched, a large amount of steam is generated when the aluminum alloy frame comes into contact with water. At this time, the suction fan 54 is started. The suction fan 54 sucks the steam into the collection pipe 51 through the collection through-hole 52, and then the steam is introduced into the condensation chamber 55. The steam condenses into water in the condensation chamber 55, and then the condensed water returns to the return pipe 11 through the water guide pipe 56, thus effectively avoiding the corrosion of the equipment around the quenching water tank 1 by the steam. At the same time, after the steam condenses, it flows back into the return pipe 11, thereby realizing the recycling of the steam and being beneficial to saving water resources.

[0059] The implementation principle of the quenching water tank with circulating cooling in the embodiment of the present application is as follows: after the quenching of the previous aluminum alloy frame is completed, the valve 13 is opened at this time. The water in the quenching water tank 1 flows into the cooling water tank 12 along the return pipe 11. The water flows downward from the water outlet hole 211, and the driving motor 241 drives the driving rod 232 to generate continuous upward jitter. The driving rod 232 drives the water distribution plate 22 to hit the water flow upward through the connecting rod 234. At the same time, the cooling fan 25 blows air to the water flow in the cooling water tank 12 to cool the water to room temperature. The initially cooled water flows along the return pipe 14. The cooling water pump 311 pumps the coolant through the first cooling pipe 32 and the second cooling pipe 33. The electric cylinder 344 drives the second cooling pipe 33 to move radially along the return pipe 14, and the water in the return pipe 14 is cooled by the first cooling pipe 32 and the second cooling pipe 33, and then the water flows back into the quenching water tank 1 through the return pipe 14. The stirring motor 41 is started, and the stirring motor 41 drives the stirring paddle 43 to rotate through the stirring shaft 42. The stirring paddle 43 mixes the cooling water, so that the water temperature in the quenching water tank 1 is the same as the temperature of the aluminum alloy frame before quenching.

[0060] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A quenching water tank with circulating cooling, comprising a quenching water tank (1), characterized in that: A return pipe (11) is provided on the side wall of the quenching water tank (1). A cooling water tank (12) is connected to the side of the return pipe (11) far from the quenching water tank (1). A first cooling assembly (2) is provided in the cooling water tank (12). The cooling water tank (12) and the quenching water tank (1) are connected through a return pipe (14). A second cooling assembly (3) is provided on the return pipe (14). The water temperature cooled by the second cooling assembly (3) is lower than the water temperature required for quenching the aluminum alloy frame. A stirring assembly (4) is provided in the quenching water tank (1). A shunt pipe (21) connected to the return pipe (11) is provided in the cooling water tank (12), and a water outlet hole (211) is provided on the shunt pipe (21). The first cooling assembly (2) includes a plurality of water distribution plates (22) rotatably provided on the side wall of the cooling water tank (12). The plurality of groups of water distribution plates (22) are located at the water outlet hole (211) and are arranged along the water flow direction. The number of each group of water distribution plates (22) is two. A gap (221) is provided between each two water distribution plates (22) in each group. The gaps (221) between different groups of water distribution plates (22) gradually decrease along the water flow direction. A driving rod (232) is slidably provided in the cooling water tank (12). One end of the driving rod (232) is fixedly provided with a telescopic spring (235). The telescopic spring (235) is fixedly connected to the cooling water tank (12) at the end far from the driving rod (232). Each water distribution plate (22) is connected to the driving rod (232) through a connecting rod (234). One end of the connecting rod (234) is rotatably provided with the water distribution plate (22), and the other end of the connecting rod (234) is rotatably provided with the driving rod (232). A driving unit (24) is provided on the cooling water tank (12). The driving unit (24) includes a driving motor (241) and a driving wheel (242). The driving wheel (242) is coaxially provided at the output shaft end of the driving motor (241). A driven wheel (243) is rotatably provided on the cooling water tank (12). The driving wheel (242) and the driven wheel (243) are connected through a conveyor belt (244). A push block (246) for pushing the driving rod (232) to compress the telescopic spring (235) to contract is provided on the conveyor belt (244). A cooling fan (25) is provided on the cooling water tank (12). The air outlet of the cooling fan (25) faces the water distribution plate (22). A filter screen (26) is provided at the air inlet of the cooling fan (25). A ventilation opening (271) is provided on the top wall of the cooling water tank (12).

2. The quenching water tank with circulating cooling according to claim 1, characterized in that: The second cooling component (3) includes a first cooling pipe (32) and a second cooling pipe (33). The first cooling pipe (32) is wound around the outer sidewall of the return pipe (14). The second cooling pipe (33) is disposed inside the return pipe (14). Coolant flows through both the first cooling pipe (32) and the second cooling pipe (33). Both ends of the second cooling pipe (33) extend out of the return pipe (14).

3. A quenching water tank with circulating cooling according to claim 2, characterized in that: The second cooling pipe (33) is slidably disposed with respect to the return pipe (14). A cooling inlet pipe (342) and a cooling outlet pipe (343) are communicatively provided on the return pipe (14). Both ends of the second cooling pipe (33) are respectively inserted into the cooling inlet pipe (342) and the cooling outlet pipe (343) and are slidably disposed. An electric cylinder (344) for driving the second cooling pipe (33) to slide radially along the return pipe (14) is provided on the return pipe (14).

4. A quenching water tank with circulating cooling according to claim 1, characterized in that: The stirring component (4) includes a stirring motor (41). A stirring shaft (42) is provided on the output shaft of the stirring motor (41). The stirring shaft (42) is inserted into the quenching water tank (1) and is rotatably disposed with respect to the quenching water tank (1). A stirring paddle (43) is provided at one end of the stirring shaft (42) inserted into the quenching water tank (1).

5. A quenching water tank with circulating cooling according to claim 4, characterized in that: A receiving groove (44) is provided inside the stirring shaft (42). A stirring rod (45) for inserting into the receiving groove (44) is slidably provided on the stirring shaft (42). A stirring spring (46) is provided on the stirring rod (45). One end of the stirring spring (46) away from the stirring rod (45) is connected to the bottom wall of the receiving groove (44). A stirring blade (47) is provided on the stirring rod (45). A placement groove (48) for inserting the stirring blade (47) is provided on the stirring paddle (43).

6. The quenching water tank with circulating cooling according to claim 1, characterized in that: A collection pipe (51) is provided on the sidewall of the quenching water tank (1). Collection through holes (52) are provided on the collection pipe (51). An air suction fan (54) is provided on the quenching water tank (1). The suction end of the air suction fan (54) is communicatively connected to the collection pipe (51). A condensation chamber (55) is provided at the output end of the air suction fan (54). A water guide pipe (56) is communicatively provided on the condensation chamber (55). The water guide pipe (56) is communicatively connected to the shunt pipe (21).

7. A quenching water tank with circulating cooling according to claim 1, characterized in that: A water replenishing pipe (61) is provided on the quenching water tank (1). A water replenishing pump (62) is provided on the water replenishing pipe (61).

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