Spring punching cooling type quenching device

Abstract

The utility model relates to a quenching device for a spring. A spring cooling type quenching device comprises a cooling water tower, a spraying opening is formed in the lower portion of the cooling water tower and located above a spring cooling supporting table, the cooling supporting table is located on a rack, a water storage pool is arranged below the rack and located below the ground, a cooling water tower and a water storage tower are arranged on one side of the water storage pool, and the cooling water tower and the water storage tower are arranged on the other side of the water storage pool. The cooling water tower is connected with a reservoir and a water storage tower through pipelines, and the water storage tower is connected with a flushing cooling water tower through a pipeline. The utility model provides a spring cooling type quenching device which is small in occupied area, good in cooling and quenching effect on springs with the diameter of more than 50mm and high in quenching efficiency. The technical problems that in the spring quenching process in the prior art, the quenching efficiency is not high, so that the performance of a spring is affected, the occupied area of a quenching device is large, and the requirement for a quenching use site is high are solved.

Description

Technical Field

[0001] The utility model relates to a quenching device for springs, in particular to a cold-pressing quenching device for springs. Background Art

[0002] Quenching is a heat treatment process method in which steel is heated to a temperature above the critical temperature, held for a certain time, and then cooled at a rate greater than the critical cooling rate to obtain an unbalanced structure mainly composed of martensite (or bainite can also be obtained according to needs or a single-phase austenite can be maintained). Quenching is the most widely used process method in the steel heat treatment process.

[0003] During the heat treatment quenching process of large springs, the high-temperature springs are immersed in a cooling pool for cooling. The cooling time is long, and the cooling pool is very large. After a period of cooling, the water temperature near the springs in the cooling pool rises rapidly, and the springs cannot be cooled quickly and evenly. Moreover, due to the large area occupied by the cooling pool, it takes a long time to replace and filter the water in the cooling pool, thus affecting the quenching efficiency. Summary of the Invention

[0004] The utility model provides a cold-pressing quenching device for springs, which has a small floor area, good cooling and quenching effects on springs with a diameter of more than 50 mm, and high quenching efficiency; it solves the technical problems existing in the prior art, such as low quenching efficiency, uneven cooling water temperature affecting the quenching quality, large floor area of the quenching device, and high requirements for the quenching use site.

[0005] The above technical problems of the utility model are solved by the following technical solutions: a cold-pressing quenching device for springs, including a cold-pressing water tower, a cold-pressing port is arranged below the cold-pressing water tower, the cold-pressing port is located above the cold-pressing support platform of the spring, the cold-pressing support platform is located on the frame, a feeding structure and a discharging structure are arranged on both sides of the cold-pressing support platform, the feeding structure includes a feeding lifting frame and a feeding plate, the discharging structure includes a discharging lifting frame and a discharging plate, a water storage pool is arranged below the frame, the water storage pool is located below the ground, a cooling water tower and a water storage tower are arranged on one side of the water storage pool, the cooling water tower is connected to the water storage pool and the water storage tower through pipelines, and the water storage tower is connected to the cold-pressing water tower through pipelines.

[0006] The internal cooling water of the impact cooling tower is directly sprayed onto the springs to be quenched on the impact cooling support platform in a large flow rate from the impact cooling port. The cooling water falls into the reservoir below the frame. The cooling tower sucks the water in the reservoir into the cooling tower through a pump for cooling, and then transports it to the water storage tower. After the water in the impact cooling tower is used up, the water in the water storage tower is transported to the impact cooling tower for the next round of spraying. Quenching and cooling are carried out by using large-capacity and rapid impact cooling. The springs are not always in the quenching pool, and there is no need to fish out the springs from the quenching pool. The hot water directly falls into the reservoir for recycling. Therefore, the reservoir can be built below the ground, saving the equipment space on the ground and significantly reducing the floor area of the entire quenching equipment. At the same time, large-volume and high-speed impact cooling improves the quenching efficiency.

[0007] Rapid cooling and spraying are carried out at the impact cooling support platform. The water after spraying falls from the frame into the pool. The springs are sent from the feeding rack to one side of the feeding lifting rack, and the springs are transported to the middle impact cooling support platform through the lifting of the lifting rack. Then, high-speed and large-volume impact cooling is carried out. The impact cooling position is significantly lower than the feeding rack, and the large-flow impact cooling will not affect the subsequent feeding of springs. After impact cooling and quenching, the quenched springs are transported out by using the discharging lifting rack. Due to the large-flow impact cooling, the lifting time on both sides just completes the impact cooling. That is, after the feeding arrives, the feeding lifting rack drops to roll the springs to be quenched into the impact cooling support platform, and then the feeding lifting rack rises again to pick up the next spring to be processed. During this period, the springs located on the impact cooling support platform have completed high-speed quenching and can be subjected to the quenching treatment of the next spring. All components are operating during the whole process, with high efficiency and good quenching effect with large-flow cold water for impact cooling.

[0008] Preferably, a sedimentation tank is provided in the reservoir. The sedimentation tank is located below the impact cooling support platform. The sedimentation tank includes a tank wall and a filter screen surrounding the tank wall. The upper end surface of the tank wall is higher than the water level in the reservoir. Design a sedimentation tank corresponding to below the frame to prevent the metal skin after quenching from falling into the reservoir and affecting the water circulation.

[0009] Preferably, a control motor is provided above the impact cooling tower, and the control motor controls the opening and closing of the impact cooling port. At the same time, the impact cooling speed and the impact cooling volume can also be controlled.

[0010] Preferably, the impact cooling volume of the impact cooling tower at one time is 3 - 6 cubic meters, and the impact cooling time is 35 seconds - 60 seconds. The impact cooling water volume is large, the impact cooling speed is fast, and the quenching efficiency is high.

[0011] Preferably, an overflow pipe is provided on the impact cooling tower. One end of the overflow pipe is connected to the impact cooling tower, and the other end of the overflow pipe is connected to the reservoir. With the design of the overflow pipe, the excess water pumped out by the impact cooling tower can flow into the reservoir through the overflow pipe, which will not cause waste, and the requirements for the pump can also be reduced, improving the use safety.

[0012] Preferably, an air-cooled motor is provided above the cooling water tower, and a cooling water tower pump is provided on the pipeline connecting the cooling water tower and the reservoir.

[0013] Preferably, the cold flushing port is strip-shaped, the length of the cold flushing port is not less than the length of the spring to be quenched, and the distance between the cold flushing port and the spring to be quenched is 50 mm to 100 mm. The cold flushing effect is good.

[0014] Preferably, a spring feeding rack is provided on one side of the frame, and the feeding plane of the feeding rack is located above the cold flushing port. It is convenient to arrange the spring feeding rack, and it will not affect the feeding of the feeding rack during cold flushing.

[0015] Preferably, the feeding lifting rack is arc-shaped, the discharging lifting rack is arranged obliquely towards the discharging direction, a feeding driving structure is provided above the feeding lifting rack, and a discharging driving structure is provided above the discharging lifting rack; the feeding plate is connected to the feeding lifting rack through a feeding plate seat, and the feeding plate and the feeding plate seat are arranged at an acute angle, the discharging plate is connected to the discharging lifting rack through a discharging plate seat, and the discharging plate and the discharging plate seat are arranged at an acute angle. An arc-shaped outward convex track is designed to change the angle of the feeding plate seat, so that the feeding plate tilts towards the cold flushing support table, and the spring on the feeding plate can be smoothly poured onto the cold flushing support table for high-speed flushing cooling quenching. The acute angle design enables the spring to be stably located on the discharging plate, improving the discharging stability.

[0016] Preferably, two mutually parallel rollers are installed on the cold flushing support table, and the two rollers form a supporting surface for the spring. A feeding guide plate and a discharging guide plate are respectively provided on both sides of the rollers. The feeding guide plate and the discharging guide plate are both inclined, inclined from the feeding end to the discharging end. A liftable ejector plate is provided between the two rollers. The feeding guide plate is connected to the feeding plate, and the discharging guide plate is connected to the discharging plate. The feeding guide plate and the discharging guide plate are located on the same inclined plane. The inclined feeding guide plate and discharging guide plate connect the feeding plate and the cold flushing support table and the discharging plate and the cold flushing support table, making it more convenient for the spring to enter and exit the quenching. After the quenching is completed, the ejector plate ejects the spring located on the rollers onto the discharging guide plate, and then it slides from the discharging guide plate to the discharging plate.

[0017] Therefore, a spring cold flushing type quenching device of the present utility model has the following advantages: large-flow rapid flushing cooling, high cooling efficiency. At the same time, the reservoir is below the ground and does not occupy the usage space. Cooling is carried out through the cooling tower and then circulated for cold flushing, with high cold flushing efficiency. In the feeding structure and the discharging structure, the spring sent by the feeding structure can be quickly subjected to high-speed flushing cooling treatment, improving the quenching efficiency. The spring is transported to the cold flushing support table through the lifting structure. Through the arrangement of the guide rail structures on both sides, it is more stable and easier for the spring to roll onto the cold flushing support table. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of a spring impact-cooling quenching device.

[0019] Figure 2 is Figure 1 another perspective view of the device after removing the frame baffle.

[0020] Figure 3 is Figure 1 a perspective view of the spring transmission structure inside. DETAILED DESCRIPTION OF THE INVENTION

[0021] The technical solution of the utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0022] Embodiment:

[0023] As Figure 1 and 2 shown, a spring impact-cooling quenching device includes a reservoir 31 dug below the ground. A space is demarcated in the reservoir 31 as a sedimentation tank 32. The sedimentation tank 32 includes a tank wall for demarcating the range of the sedimentation tank. The upper end surface of the tank wall is higher than the water surface of the reservoir. A filter screen 33 is disposed around the upper part of the tank wall. The water after sedimentation in the sedimentation tank flows into the reservoir 31 through the filter screen 33.

[0024] A support frame 34 is installed above the sedimentation tank 32. A cooling water tower 35 is installed on the support frame 34. A control motor 40 is provided above the cooling water tower 35. A cooling port 41 is connected below the cooling water tower 35. The control motor 40 controls the cooling volume and cooling time of the cooling port 41. The water volume for one-time cooling is approximately about 4 cubic meters, and the cooling time is approximately completed in about 45 seconds. An overflow pipe 36 is connected to the cooling water tower 35. One end of the overflow pipe 36 is connected to the cooling water tower 35, and the other end of the overflow pipe 36 is connected to the reservoir 31.

[0025] A transmission mechanism for spring feeding, discharging, and conveying is installed below the cooling water tower 35. The transmission mechanism of the spring impact-cooling quenching device includes a frame 1. A cooling support platform is arranged at the center of the frame 1. The cooling port 41 is located above the cooling support platform. The distance between the cooling port 41 and the spring to be quenched is approximately about 60 mm.

[0026] On one side of the reservoir 31, a cooling water tower 39 and a water storage tower 37 are installed. Above the cooling water tower 39, an air-cooled motor 38 is installed to cool the water in the cooling water tower 39 by air cooling. The cooling water tower 39 pumps water from the reservoir 31 through a pipeline, and the pump is installed on the pipeline. On the installation plane of the water storage tower 37, two pumps are installed. One of them is used to transport the cooled water in the cooling water tower 39 into the water storage tower 37. The other one is used to pump the cooling water in the water storage tower 37 into the flushing cooling water tower 35 for flushing cooling use.

[0027] As Figure 3 shown, the transmission mechanism of the spring flushing-cooling quenching device includes a frame 1. On one side of the frame 1, a spring feeding rack 2 is arranged. Around the frame 1, a frame baffle is arranged. Below the frame 1 is a sedimentation tank 32. A feeding guide rail 3 is installed on the spring feeding rack 2. A feeding seat 4 is installed on the feeding guide rail 3. One end of the feeding seat 4 is installed with a pushing plate 5, and the pushing plate 5 is driven by a pushing cylinder.

[0028] In the center of the frame 1, a flushing-cooling support platform is arranged. Two rollers 21 parallel to each other are installed on the flushing-cooling support platform. The two rollers 21 are driven by a driving motor installed on the flushing-cooling support platform. The rolling of the two rollers 21 drives the spring to be quenched located on the rollers to roll, so as to achieve full quenching. The two rollers 21 form a V-shaped support surface. The distance between the centers of the two rollers 21 is smaller than the diameter of the spring to be quenched. On both sides of the two rollers 21, a feeding guide plate 18 and a discharging guide plate 20 are respectively installed. Both the feeding guide plate 18 and the discharging guide plate 20 are inclined, and both are inclined from the feeding end to the discharging end. Between the two rollers 21, a liftable ejector plate 19 is provided, and the ejector plate 19 is also inclined. When the ejector plate 19 ejects, the feeding guide plate 18, the ejector plate 19 and the discharging guide plate 20 are located on the same inclined plane. The lift of the ejector plate 19 is controlled by an ejecting cylinder 13.

[0029] On both sides of the flushing-cooling support platform, a feeding lifting frame 22 and a discharging lifting frame 23 are respectively installed. The feeding lifting frame 22 includes feeding columns 9 parallel to each other. On the feeding columns 9, a feeding track 10 is provided. The feeding track 10 is in an arc shape protruding towards the flushing-cooling support platform. A feeding plate seat 11 is installed in the feeding track 10. The feeding plate seat 11 is a rectangular frame. The upper and lower ends of the feeding plate seat 11 are located in the feeding track 10. A feeding plate 12 is fixed on the feeding plate seat 11. The included angle between the feeding plate seat 11 and the feeding plate 12 is an acute angle. A driving motor 6 is installed at the upper end of the feeding lifting frame 22. The driving motor 6 drives a winding wheel 7 to rotate. A pulling rope 8 is wound around the winding wheel 7. One end of the pulling rope 8 on the feeding lifting frame 22 is fixed on the feeding plate 12. By pulling the pulling rope 8, the feeding plate seat 11 moves in the feeding track 10, which also drives the feeding plate 12 to lift.

[0030] The discharging lifting frame 23 includes discharging columns 14 that are parallel to each other. A discharging track 15 is provided on the discharging column 14. The discharging track 15 is linear. A discharging plate seat 16 is installed in the discharging track 15. The discharging plate seat 16 is rectangular, and both ends of the discharging plate seat 16 are located in the discharging track 15. A discharging plate 17 is fixed on the discharging plate seat 16, and the discharging plate seat 16 and the discharging plate 17 are arranged at an acute angle. Driving motors are installed at the upper ends of the discharging lifting frame 23. The driving motors drive the reel, and a pulling rope is wound around the reel. One end of the pulling rope of the discharging lifting frame is fixed on the discharging plate 17.

[0031] During use, when the spring to be quenched on the feeding frame 2 is transported to the front of the feeding lifting frame 22, the pushing plate 5 pushes the spring to be quenched onto the feeding plate 12. The driving motor 6 drives the reel 7 to rotate, so that the feeding plate seat 11 and the feeding plate 12 move downward. Since the feeding track 10 protrudes outward, when moving to the protruding part, the feeding seat 11 tilts, so that the spring to be quenched is poured from the feeding plate 12 onto the feeding guide plate 18. The inclined feeding guide plate 18 transports the spring to be quenched to the supporting surface formed by the two rollers 21. The rollers 21 roll to drive the spring to roll. The control motor above controls the opening of the punching and cooling port, and the cooling water in the punching and cooling water tower is poured down in a large amount at one time to cool and quench the spring to be quenched. After quenching, the ejector plate 19 rises to eject the spring from the roller supporting surface. The spring rolls along the discharging guide plate 20 onto the discharging plate 17. The driving motor on the discharging lifting frame 23 drives the reel to rotate, and the discharging plate seat drives the discharging plate to rise, thereby outputting the processed spring. The hot water after punching and cooling falls into the sedimentation tank below the frame. After sedimentation, it is pumped into the cooling water tower by a pump. The air-cooling motor of the cooling water tower works to cool the hot water and then input it into the water storage tower for standby. When the water in the punching and cooling water tower is almost used up, the water will be pumped from the water storage tower into the cooling water for the next cycle of quenching and cooling.

[0032] The specific embodiments described herein are merely illustrative of the concept of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A spring impact cold quenching device, characterized in that: It includes a flushing cooling tower, and a flushing cooling port is provided below the flushing cooling tower. The flushing cooling port is located above the flushing cooling support platform of the spring. The flushing and spraying support platform is located on the frame. On both sides of the flushing cooling support platform, there are a feeding structure and a discharging structure. The feeding structure includes a feeding lifting frame and a feeding plate, and the discharging structure includes a discharging lifting frame and a discharging plate. A reservoir is provided below the frame. The reservoir is located below the ground. On one side of the reservoir, there are a cooling water tower and a water storage tower. The cooling water tower is connected to the reservoir and the water storage tower through pipelines, and the water storage tower is connected to the flushing cooling tower through a pipeline.

2. A spring impact cold quenching device according to claim 1, characterized in that: A sedimentation tank is provided in the reservoir. The sedimentation tank is located below the flushing cooling support platform. The sedimentation tank includes a tank wall and a filter screen surrounding the tank wall on all sides. The upper end surface of the tank wall is higher than the water level in the reservoir.

3. A spring impact cold quenching device according to claim 1 or 2, characterized in that: A control motor is provided above the flushing cooling tower, and the control motor controls the opening and closing of the flushing cooling port.

4. A spring impact cold quenching device according to claim 1 or 2, characterized in that: The spraying amount of the flushing cooling tower at one time is 3 to 6 cubic meters, and the spraying time is 35 seconds to 60 seconds.

5. A spring impact cold quenching device according to claim 1 or 2, characterized in that: An overflow pipeline is provided on the flushing cooling tower. One end of the overflow pipeline is connected to the flushing cooling tower, and the other end of the overflow pipeline is connected to the reservoir.

6. The spring impact and cold quenching device according to claim 1 or 2, characterized in that: An air-cooling motor is provided above the cooling water tower, and a cooling water tower pump is provided on the pipeline connecting the cooling water tower and the reservoir.

7. A spring impact cold quenching device according to claim 1 or 2, characterized in that: The flushing cooling port is strip-shaped, and the length of the flushing cooling port is not less than the length of the spring to be quenched. The distance between the flushing cooling port and the spring to be quenched is 50 mm to 100 mm.

8. A spring impact cold quenching device according to claim 1 or 2, characterized in that: A spring feeding rack is provided on one side of the frame, and the feeding plane of the feeding rack is located above the flushing cooling port.

9. A spring impact cold quenching device according to claim 1 or 2, characterized in that: The feeding lifting frame is arc-shaped, and the discharging lifting frame is arranged obliquely in the discharging direction. A feeding driving structure is provided above the feeding lifting frame, and a discharging driving structure is provided above the discharging lifting frame. The feeding plate is connected to the feeding lifting frame through a feeding plate seat, and the feeding plate and the feeding plate seat are arranged at an acute angle. The discharging plate is connected to the discharging lifting frame through a discharging plate seat, and the discharging plate and the discharging plate seat are arranged at an acute angle.

10. A spring impact quenching device according to claim 1 or 2, characterized in that: Two mutually parallel rollers are installed on the flushing cooling support platform. The two rollers form a supporting surface for the spring. A feeding guide plate and a discharging guide plate are respectively provided on both sides of the rollers. The feeding guide plate and the discharging guide plate are both obliquely arranged, both inclined from the feeding end to the discharging end. A liftable ejector plate is provided between the two rollers. The feeding guide plate is connected to the feeding plate, and the discharging guide plate is connected to the discharging plate. The feeding guide plate and the discharging guide plate are on the same inclined plane.

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