Spring quenching device and system with circulating cooling mechanism

By introducing a servo motor-driven conveyor belt and circulating cooling system into the spring quenching device, continuous automatic quenching and uniform cooling of the spring are achieved, and the problems of low efficiency and uneven quality of existing devices are solved, production efficiency and product quality are improved, and environmental pollution is reduced.

CN120366561APending Publication Date: 2025-07-25FUJIAN YONGDONGLI SPRING TECH
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Patent Information

Application Number
CN202510602456.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

The existing spring quenching devices are inefficient, the quenching quality is uneven, and the cooling method is single and uneven, resulting in high waste rate and high labor intensity, making it difficult to meet the needs of large-scale production.

Method used

A spring quenching device with a circulating cooling mechanism is designed, and the continuous automatic conveying of springs is achieved by using a servo motor drive conveyor belt, and the circulating cooling of the quenching liquid is achieved through the S-shaped pipeline design of the circulating water pump and the fan, combining the uniform spraying of the nozzle and the efficient drying of the collection box.

Benefits of technology

It improves quenching efficiency and quality, optimizes cooling effect, reduces energy consumption and environmental pollution, improves the stability and safety of the device, and reduces operation difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The spring quenching device with the circulating cooling mechanism comprises a quenching tank, a conveying belt and a collecting box, a supporting frame is installed at one end of the quenching tank, a fan is arranged on the outer side of the supporting frame, and a circulating water pump is arranged on the portion, below the supporting frame, of the outer wall of the quenching tank; the input end of the circulating water pump extends into the quenching tank through a first water pipe, the output end of the circulating water pump is connected with an S-shaped pipeline arranged in the supporting frame through a second water pipe, the output end of the S-shaped pipeline is connected with a third water pipe arranged on the outer side of the quenching tank, and spray heads are further evenly arranged on the two sides of the quenching tank. The supporting table and the conveying belt are arranged in the quenching tank, the first servo motor is used for driving the conveying belt, continuous and automatic conveying of springs is achieved, it is guaranteed that the springs are evenly heated in the quenching process through even movement of the conveying belt, and the quenching efficiency and quality are remarkably improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of spring quenching, and specifically relates to a spring quenching device with a circulating cooling mechanism. Background Technique

[0002] In the field of mechanical manufacturing, as an important mechanical part, springs are widely used in various industries such as mechanical equipment, automobiles, and aerospace. The quenching treatment of springs is one of the key technological processes that determine their performance and quality. The quality of quenching directly affects the strength, elasticity, and service life of springs.

[0003] Currently, there are many problems in the actual application of existing spring quenching devices. In terms of quenching efficiency, most traditional spring quenching devices adopt manual operation methods. Operators need to manually put the springs into the quenching tank and then take them out manually. This operation method is not only inefficient, but also due to the instability of manual operation, it is difficult to ensure that the springs are evenly heated during each quenching, resulting in uneven quenching quality and a high rejection rate. At the same time, the labor intensity of manual operation is large, which is not conducive to large-scale production. In terms of cooling effect, the cooling methods of existing quenching devices are relatively single. Usually, they simply rely on natural cooling or single spray cooling, and cannot achieve the effective recycling of quenching liquid. This makes the temperature distribution of the quenching liquid uneven, prone to local overheating or uneven cooling, and then causes the springs to deform during the quenching process, seriously affecting the quality and performance of the springs. Summary of the Invention

[0004] The purpose of the present invention is to provide a spring quenching device with a circulating cooling mechanism to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A spring quenching device with a circulating cooling mechanism, including a quenching tank, a conveyor belt, and a collection box. A support platform is arranged inside the quenching tank through a fixed rod, and a conveyor belt is also installed on the support platform. One end of the support platform extends to the outside of the quenching tank and is provided with a servo motor I. The driving shaft of the servo motor I is fixedly connected to the first rotating shaft of the conveyor belt;

[0006] A support frame is installed at one end of the quenching tank. A fan is arranged outside the support frame. A circulating water pump is arranged on the outer wall of the quenching tank below the support frame. The input end of the circulating water pump extends into the quenching tank through a first water pipe. The output end of the circulating water pump is connected to an S-shaped pipe arranged inside the support frame through a second water pipe. The output end of the S-shaped pipe is connected to a third water pipe arranged outside the quenching tank. Spray heads are evenly arranged on both sides of the quenching tank. Each spray head is respectively connected in parallel to the third water pipe through a fourth water pipe;

[0007] At the other end of the quenching tank, a collection box is provided. At the top inside the collection box, a second servo motor is provided, and the output end of the second servo motor is provided with a fixed sleeve through a second rotating shaft. Uniformly arranged outside the fixed sleeve are fan blades, and a perforated plate is also provided inside the collection box.

[0008] Preferably, at one end of the top of the quenching tank, a feed hopper is provided, and at the bottom of the feed hopper, an extended trough is installed. The output end of the extended trough extends to a position above the conveyor belt.

[0009] Preferably, at the opening of the collection box below the output end of the conveyor belt, a guiding plate is provided, and at the bottom of the collection box, a drain hole is provided.

[0010] Preferably, at both ends of the first rotating shaft, gears are provided. Both of the gears are connected to the inner wall of the conveyor belt, and uniformly arranged outside the conveyor belt are baffle plates.

[0011] Preferably, the quenching tank and the collection box are installed and connected through a fixing plate.

[0012] Preferably, side plates are provided on both sides of the conveyor belt.

[0013] A spring quenching system with a circulating cooling mechanism

[0014] Step 1: Spring feeding

[0015] The spring to be quenched is poured into the device through the feed hopper. The spring slides down along the extended trough at the bottom of the feed hopper. The output end of the extended trough is aligned with the conveyor belt, and the spring accurately falls onto the conveyor belt. Since uniformly arranged baffle plates are provided outside the conveyor belt and side plates are provided on both sides, it can effectively prevent the spring from slipping or moving laterally during the conveying process.

[0016] Step 2: Spring conveying and quenching

[0017] Start the first servo motor. The drive shaft of the first servo motor drives the first rotating shaft to rotate. The gears at both ends of the first rotating shaft are engaged with the inner wall of the conveyor belt, making the conveyor belt run smoothly. The spring moves in the quenching tank along with the conveyor belt. The quenching tank contains a quenching medium (such as oil or water). The spring is quenched during the conveying process. Because of the uniform movement of the conveyor belt, it ensures that the spring is evenly heated during the quenching process and improves the quenching quality.

[0018] Step 3: Circulating cooling of the quenching liquid

[0019] Start the circulating water pump. The circulating water pump extracts quenching liquid from the bottom of the quenching tank through the first water pipe. The quenching liquid enters the S-shaped pipe inside the support frame through the second water pipe. In the S-shaped pipe, the quenching liquid exchanges heat with the outside air (the fan outside the support frame accelerates air circulation to improve the cooling efficiency). The cooled quenching liquid is sprayed out from the nozzles on both sides of the quenching tank through the third water pipe and the fourth water pipe, evenly spraying on the surface of the spring to cool the spring. At the same time, these quenching liquids flow back into the quenching tank to realize the recycling of the quenching liquid.

[0020] Step 4: Collection and treatment of the spring after quenching

[0021] The spring after quenching and cooling continues to move along with the conveyor belt. After reaching the output end of the conveyor belt, it slides into the collection box through the guiding plate. Inside the collection box, start the second servo motor. The second servo motor drives the fixed sleeve and the outer fan blades to rotate through the second rotating shaft. The airflow generated by the rotation of the fan blades dries the spring. The mesh plate inside the collection box can effectively separate the spring and the quenching liquid. The quenching liquid falls to the bottom of the collection box through the mesh plate and is discharged through the drain hole at the bottom to ensure the dryness and cleanliness of the spring inside the collection box.

[0022] The present invention relates to a spring quenching device with a circulating cooling mechanism. Compared with the prior art, it has the following remarkable beneficial effects:

[0023] 1. Improve the quenching efficiency and quality:

[0024] By arranging a support table and a conveyor belt inside the quenching tank and using the first servo motor to drive the conveyor belt, the continuous and automatic conveying of the spring is realized, avoiding the instability and low efficiency problems of traditional manual operations. The uniform movement of the conveyor belt ensures that the spring is evenly heated during the quenching process, significantly improving the quenching efficiency and quality.

[0025] One end of the support table extends to the outside of the quenching tank, which is convenient for installation and maintenance, further enhancing the stability and reliability of the device.

[0026] 2. Optimize the cooling effect:

[0027] The combined design of the fan and the circulating water pump arranged outside the support frame, through the coordinated action of the S-shaped pipe and the nozzles, realizes the circulating cooling of the quenching liquid. This design not only improves the cooling efficiency but also makes the temperature distribution of the quenching liquid more uniform, avoiding the spring deformation problem caused by local overheating or uneven cooling.

[0028] The uniform distribution of the nozzles and the parallel connection of the fourth water pipe ensure that the quenching liquid can be sprayed onto the surface of the spring in all directions and evenly, further enhancing the cooling effect.

[0029] 3. Improve the collection and drainage efficiency:

[0030] The servo motor two and the fan blades arranged inside the collection box can efficiently collect the quenched springs and drain the moisture, avoiding secondary oxidation and corrosion of the springs during the collection process.

[0031] The design of the mesh plate effectively separates the springs and the quenching liquid, ensuring the dryness and cleanliness of the springs in the collection box.

[0032] The design of the drain holes at the bottom of the collection box facilitates the timely discharge of the residual quenching liquid, reducing the workload of wastewater treatment and environmental pollution.

[0033] 4. Enhance the stability and safety of the device:

[0034] The side plates arranged on both sides of the conveyor belt and the baffle plates on the outside effectively prevent the lateral movement and splashing of the springs during the conveying process, improving the stability and operation safety of the device.

[0035] The connection of the gears arranged at both ends of the first rotating shaft to the inner wall of the conveyor belt ensures the smooth operation of the conveyor belt and reduces the occurrence of mechanical failures.

[0036] 5. Improve the operation convenience:

[0037] The design of the feed hopper and the extension chute makes the feeding process of the springs more convenient and accurate, avoiding the unstable factors of manual feeding.

[0038] The design of the guiding plate ensures the smooth entry of the springs from the conveyor belt into the collection box, reducing the jamming and blockage phenomena during the operation process.

[0039] 6. Save energy and reduce environmental pollution:

[0040] The design of the circulating cooling mechanism enables the quenching liquid to be recycled, reducing the consumption of cooling water and the discharge of wastewater, meeting the environmental protection requirements of energy conservation and emission reduction.

[0041] By optimizing the cooling and collection processes, the waste of energy is reduced, and the energy efficiency ratio of the overall device is improved.

[0042] In summary, through innovative designs and technical solutions, the present invention significantly improves the efficiency, quality, and safety of the spring quenching device, optimizes the cooling and collection processes, saves energy, reduces environmental pollution, and has significant economic and social benefits. Brief Description of the Drawings

[0043] Figure 1 is the front sectional structure schematic diagram of the present invention;

[0044] Figure 2 is the left sectional structure schematic diagram of the present invention;

[0045] Figure 3 Schematic top - view sectional structure diagram of the present invention;

[0046] Figure 4 of the present invention Figure 1 Enlarged structure diagram at position A in;

[0047] Figure 5 Schematic internal structure diagram of the support frame of the present invention.

[0048] In the figure: 1, quenching tank; 2, circulating water pump; 3, first water pipe; 4, second water pipe; 5, third water pipe; 6, fourth water pipe; 7, spray head; 8, feed hopper; 9, extended material trough; 10, fixed rod; 11, support platform; 12, side plate; 13, servo - motor 1; 14, first rotating shaft; 15, gear; 16, conveyor belt; 17, baffle; 18, fixed plate; 19, collection box; 20, guiding plate; 21, servo - motor 2; 22, second rotating shaft; 23, fixed sleeve; 24, fan blade; 25, perforated plate; 26, drain hole; 27, support frame; 28, fan; 29, S - shaped pipe. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] Please refer to Figures 1-5 , an embodiment provided by the present invention: A spring quenching device with a circulating cooling mechanism, including a quenching tank 1, a conveyor belt 16, and a collection box 19. Inside the quenching tank 1, a support platform 11 is arranged through a fixed rod 10, and a conveyor belt 16 is also installed on the support platform 11. One end of the support platform 11 extends to the outside of the quenching tank 1 and is provided with a servo - motor 1 13, and the drive shaft of the servo - motor 1 13 is fixedly connected to the first rotating shaft 14 of the conveyor belt 16.

[0051] Both ends of the first rotating shaft 14 are provided with gears 15, both gears 15 are connected to the inner wall of the conveyor belt 16, and baffles 17 are evenly arranged on the outside of the conveyor belt 16.

[0052] Side plates 12 are arranged on both sides of the conveyor belt 16.

[0053] One end at the top of the quenching tank 1 is provided with a feed hopper 8, and an extended material trough 9 is installed at the bottom of the feed hopper 8. The output end of the extended material trough 9 extends to a position above the conveyor belt 16.

[0054] The quenching tank 1 is the core component of this device and is used to hold quenching media such as oil or water. Inside the quenching tank 1, a support platform 11 is arranged through a fixing rod 10.

[0055] The support platform 11 is located inside the quenching tank 1 and is used to support the conveyor belt 16. One end of the support platform 11 extends to the outside of the quenching tank 1, and a first servo motor 13 is arranged at this end.

[0056] The conveyor belt 16 is installed on the support platform 11 and is used to convey the springs to be quenched. The first rotating shaft 14 of the conveyor belt 16 is fixedly connected to the drive shaft of the first servo motor 13 to drive the movement of the conveyor belt.

[0057] The first servo motor 13 is installed at the extended end of the support platform 11 and is used to drive the conveyor belt 16. The drive shaft of the first servo motor 13 is fixedly connected to the first rotating shaft 14 of the conveyor belt 16.

[0058] Both ends of the first rotating shaft 14 are provided with gears 15. The gears 15 are connected to the inner wall of the conveyor belt 16 to achieve the smooth operation of the conveyor belt through gear transmission.

[0059] The two gears 15 are respectively installed at both ends of the first rotating shaft 14 and are connected to the inner wall of the conveyor belt 16 to ensure the uniform transmission of the conveyor belt.

[0060] The outer side of the conveyor belt 16 is evenly provided with baffles 17 to prevent the springs from slipping during transportation.

[0061] Side plates 12 are arranged on both sides of the conveyor belt 16 to further ensure the stability of the springs during transportation.

[0062] One end at the top of the quenching tank 1 is provided with a feed hopper 8 for introducing the springs to be quenched into the device.

[0063] The bottom of the feed hopper 8 is installed with an extended feed trough 9, and the output end of the extended feed trough 9 extends to a position above the conveyor belt 16 to ensure that the springs can smoothly fall onto the conveyor belt 16.

[0064] A support frame 27 is installed at one end of the quenching tank 1. A fan 28 is arranged on the outside of the support frame 27. A circulating water pump 2 is arranged on the outer wall of the quenching tank 1 below the support frame 27. The input end of the circulating water pump 2 extends into the interior of the quenching tank 1 through a first water pipe 3. The output end of the circulating water pump 2 is connected to an S-shaped pipe 29 arranged inside the support frame 27 through a second water pipe 4. The output end of the S-shaped pipe 29 is connected to a third water pipe 5 arranged outside the quenching tank 1. Sprayers 7 are also evenly arranged on both sides of the quenching tank 1. Each sprayer 7 is connected in parallel to the third water pipe 5 through a fourth water pipe 6;

[0065] At the other end of the quenching tank 1, a collection box 19 is provided. At the top inside the collection box 19, a second servo motor 21 is provided, and the output end of the second servo motor 21 is provided with a fixed sleeve 23 through a second rotating shaft 22. Uniformly arranged on the outer side of the fixed sleeve 23 are fan blades 24. Inside the collection box 19, a perforated plate 25 is also provided.

[0066] On the outer side of the support frame 27, a fan 28 is provided. The fan 28 is used to accelerate the air circulation around, thereby improving the cooling efficiency. The fan 28 is driven by a motor, and its installation position and angle are optimized to ensure the maximum air circulation effect.

[0067] On the outer wall of the quenching tank 1 below the support frame 27, a circulating water pump 2 is provided. The circulating water pump 2 is a highly efficient and energy-saving pump. Its input end extends into the quenching tank 1 through a first water pipe 3, and the end of the first water pipe 3 is located at the bottom of the quenching tank 1 to draw the coolant in the tank. The output end of the circulating water pump 2 is connected to an S-shaped pipe 29 arranged inside the support frame 27 through a second water pipe 4. The design of the S-shaped pipe 29 is aimed at increasing the flow path of the coolant, thereby improving the heat exchange efficiency of the coolant. The output end of the S-shaped pipe 29 is connected to a third water pipe 5 arranged outside the quenching tank 1.

[0068] On both sides of the quenching tank 1, spray heads 7 are uniformly arranged. Each spray head 7 is respectively connected in parallel to the third water pipe 5 through a fourth water pipe 6. The spray heads 7 adopt an adjustable angle design to adjust the spraying direction and range according to actual needs. The material of the fourth water pipe 6 is selected as a high-temperature resistant and corrosion-resistant material to ensure its long-term stable operation in a high-temperature environment.

[0069] At the other end of the quenching tank 1, a collection box 19 is provided. The collection box 19 is used to collect the waste liquid and impurities generated during the quenching process. At the top inside the collection box 19, a second servo motor 21 is provided, and the output end of the second servo motor 21 is provided with a fixed sleeve 23 through a second rotating shaft 22. Uniformly arranged on the outer side of the fixed sleeve 23 are fan blades 24. The fan blades 24 rotate under the drive of the second servo motor 21 to realize the drying treatment of the quenched products.

[0070] Inside the collection box 19, a perforated plate 25 is also provided. The perforated plate 25 is made of stainless steel, and its aperture is precisely designed to ensure effective liquid drainage separation for the quenched products when entering and leaving the liquid. The installation position and angle of the perforated plate 25 are optimized to ensure the maximum drainage effect.

[0071] At the opening of the collection box 19 below the output end of the conveyor belt 16, a guiding plate 20 is provided, and a drain hole 26 is provided at the bottom of the collection box 19.

[0072] The quenching tank 1 and the collection box 19 are installed and connected through a fixing plate 18.

[0073] The inlet plate 20 is arranged above the opening of the collection box 19, and its material is corrosion-resistant stainless steel. The inclination angle of the inlet plate 20 is designed to be 30° to 45° to ensure that the material can smoothly slide into the collection box 19. The surface of the inlet plate 20 is smooth to prevent the material from accumulating on its surface.

[0074] The fixing plate 18 is used to connect the quenching tank 1 and the collection box 19 to ensure the relative position between the two remains fixed. The material of the fixing plate 18 is high-strength steel, and it is provided with a plurality of bolt holes. The quenching tank 1 and the collection box 19 are firmly connected together by bolts.

[0075] The bottom of the collection box 19 is provided with a drain hole 26 for draining the waste liquid in the collection box 19. The diameter of the drain hole 26 is designed according to the flow rate of the waste liquid, usually 20mm to 50mm.

[0076] When the embodiment of this application is in use:

[0077] The first step: Spring feeding

[0078] The spring to be quenched is poured into the device through the feed hopper 8. The spring slides down along the extension chute 9 at the bottom of the feed hopper 8. The output end of the extension chute 9 is aligned with the conveyor belt 16, and the spring accurately falls on the conveyor belt 16. Since baffles 17 are evenly arranged on the outer side of the conveyor belt 16 and side plates 12 are provided on both sides, it can effectively prevent the spring from slipping or moving laterally during transportation.

[0079] The second step: Spring transportation and quenching

[0080] Start the servo motor 13. The drive shaft of the servo motor 13 drives the first rotating shaft 14 to rotate. The gears 15 at both ends of the first rotating shaft 14 are engaged with the inner wall of the conveyor belt 16 to make the conveyor belt 16 run smoothly. The spring moves in the quenching tank 1 along with the conveyor belt 16. The quenching tank 1 contains a quenching medium (such as oil or water). The spring is quenched during transportation. Due to the uniform movement of the conveyor belt 16, it ensures that the spring is heated evenly during quenching and improves the quenching quality.

[0081] The third step: Circulating cooling of the quenching liquid

[0082] Start the circulating water pump 2. The circulating water pump 2 extracts the quenching liquid from the bottom of the quenching tank 1 through the first water pipe 3. The quenching liquid enters the S-shaped pipe 29 inside the support frame 27 through the second water pipe 4. In the S-shaped pipe 29, the quenching liquid exchanges heat with the outside air (the fan 28 outside the support frame 27 accelerates the air flow to improve the cooling efficiency). The cooled quenching liquid is sprayed out from the nozzles 7 on both sides of the quenching tank 1 through the third water pipe 5 and the fourth water pipe 6, and evenly sprayed on the surface of the spring to cool the spring. At the same time, these quenching liquids flow back into the quenching tank 1, realizing the recycling of the quenching liquid.

[0083] Step 4: Collection and Treatment of Springs after Quenching

[0084] The springs that have been quenched and cooled continue to move along the conveyor belt 16. After reaching the output end of the conveyor belt 16, they slide into the collection box 19 through the guiding plate 20. Inside the collection box 19, the second servo motor 21 is started. The second servo motor 21 drives the fixed sleeve 23 and the outer fan blade 24 to rotate through the second rotating shaft 22. The airflow generated by the rotation of the fan blade 24 dries the springs. The mesh plate 25 inside the collection box 19 can effectively separate the springs and the quenching liquid. The quenching liquid falls to the bottom of the collection box 19 through the mesh plate 25 and is discharged through the drain hole 26 at the bottom, ensuring the dryness and cleanliness of the springs in the collection box 19.

[0085] Device Maintenance and Connection Stability Assurance: Since one end of the support platform 11 extends outside the quenching tank 1, it is convenient for the installation and maintenance of components such as the first servo motor 13. The quenching tank 1 and the collection box 19 are firmly connected through the fixing plate 18 to ensure the stability of the entire device during operation. Through the above work process, the device realizes the continuous automatic quenching of springs, the circulating cooling of the quenching liquid, the efficient collection and treatment of springs after quenching, improves production efficiency and product quality, and at the same time saves energy and reduces environmental pollution. Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. A spring quenching device with a circulating cooling mechanism, comprising a quenching tank (1), a conveyor belt (16) and a collection box (19), characterized in that: Inside the quenching tank (1), a support platform (11) is arranged through a fixing rod (10), and a conveyor belt (16) is also installed on the support platform (11). One end of the support platform (11) extends to the outside of the quenching tank (1) and is provided with a servo motor I (13). The drive shaft of the servo motor I (13) is fixedly connected to the first rotating shaft (14) of the conveyor belt (16); One end of the quenching tank (1) is provided with a support frame (27). A fan (28) is arranged outside the support frame (27). A circulating water pump (2) is arranged on the outer wall of the quenching tank (1) below the support frame (27). The input end of the circulating water pump (2) extends into the quenching tank (1) through a first water pipe (3). The output end of the circulating water pump (2) is connected to an S-shaped pipe (29) arranged inside the support frame (27) through a second water pipe (4). The output end of the S-shaped pipe (29) is connected to a third water pipe (5) arranged outside the quenching tank (1). Spray heads (7) are evenly arranged on both sides of the quenching tank (1). Each spray head (7) is connected in parallel to the third water pipe (5) through a fourth water pipe (6); The other end of the quenching tank (1) is provided with a collection box (19). A servo motor II (21) is arranged at the top end inside the collection box (19). The output end of the servo motor II (21) is provided with a fixed sleeve (23) through a second rotating shaft (22). Blades (24) are evenly arranged on the outside of the fixed sleeve (23). A mesh plate (25) is also arranged inside the collection box (19).

2. The spring quenching device with a circulating cooling mechanism according to claim 1, wherein: One end at the top of the quenching tank (1) is provided with a feed hopper (8), and an extension chute (9) is installed at the bottom of the feed hopper (8). The output end of the extension chute (9) extends to a position above the conveyor belt (16).

3. A spring quenching device with a circulating cooling mechanism according to claim 2, characterized in that: An inlet plate (20) is arranged at the opening of the collection box (19) below the output end of the conveyor belt (16), and a drain hole (26) is arranged at the bottom of the collection box (19).

4. A spring quenching device with a circulating cooling mechanism according to claim 1, characterized in that: Gears (15) are arranged at both ends of the first rotating shaft (14). Both gears (15) are connected to the inner wall of the conveyor belt (16), and baffles (17) are evenly arranged on the outside of the conveyor belt (16).

5. A spring quenching device with a circulating cooling mechanism according to claim 1, characterized in that: The quenching tank (1) and the collection box (19) are installed and connected through a fixing plate (18).

6. A spring quenching device with a circulating cooling mechanism according to claim 1, characterized in that: Side plates (12) are arranged on both sides of the conveyor belt (16).

7. A spring quenching system with a circulating cooling mechanism, characterized in that: Step 1: Spring feeding The spring to be quenched is poured into the device through the feed hopper (8). The spring slides down along the extension chute (9) at the bottom of the feed hopper (8). The output end of the extension chute (9) is aligned with the conveyor belt (16). The spring accurately falls onto the conveyor belt (16). Since baffles (17) are evenly arranged on the outside of the conveyor belt (16) and side plates (12) are arranged on both sides, it can effectively prevent the spring from slipping or moving laterally during transportation. Step 2: Spring transportation and quenching Start the first servo motor (13). The drive shaft of the first servo motor (13) drives the first rotating shaft (14) to rotate. The gears (15) at both ends of the first rotating shaft (14) mesh with the inner wall of the conveyor belt (16), enabling the conveyor belt (16) to run smoothly. The spring moves in the quenching tank 1 along with the conveyor belt (16). The quenching tank (1) contains a quenching medium (such as oil or water). The spring undergoes quenching treatment during the conveying process. Due to the uniform movement of the conveyor belt (16), it ensures that the spring is heated evenly during quenching, improving the quenching quality. Step 3: Circulating cooling of the quenching liquid Start the circulating water pump (2). The circulating water pump (2) extracts the quenching liquid from the bottom of the quenching tank (1) through the first water pipe (3). The quenching liquid enters the S-shaped pipe (29) inside the support frame (27) through the second water pipe (4). In the S-shaped pipe (29), the quenching liquid exchanges heat with the outside air (the fan (28) outside the support frame (27) accelerates air circulation, improving the cooling efficiency). The cooled quenching liquid is sprayed out from the nozzles (7) on both sides of the quenching tank (1) through the third water pipe (5) and the fourth water pipe (6), evenly spraying on the surface of the spring to cool the spring. At the same time, these quenching liquids flow back into the quenching tank 1, realizing the recycling of the quenching liquid. Step 4: Collection and treatment of the quenched spring The quenched and cooled spring continues to move along with the conveyor belt (16). After reaching the output end of the conveyor belt (16), it slides into the collection box (19) through the guiding plate (20). Inside the collection box (19), start the second servo motor (21). The second servo motor (21) drives the fixed sleeve (23) and the outer fan blades (24) to rotate through the second rotating shaft (22). The airflow generated by the rotation of the fan blades (24) dries the spring. The mesh plate (25) inside the collection box (19) can effectively separate the spring and the quenching liquid. The quenching liquid falls to the bottom of the collection box (19) through the mesh plate (25) and is discharged through the drain hole (26) at the bottom, ensuring the dryness and cleanliness of the spring in the collection box (19).

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