Device for annealing and cooling metal after heat treatment

Abstract

The utility model relates to the technical field of metal part annealing and cooling, in particular to an annealing and cooling device after metal heat treatment, which comprises a cylindrical cooling cylinder with an opening at the bottom end, a screw rod is rotatably connected to the left side in the cooling cylinder, a sliding rod is fixedly connected to the right side in the cooling cylinder, and a nut seat is in threaded connection with the outer wall of the screw rod. The cooling ring capable of ascending and descending is matched with the multiple layers of carrying frames, regional dynamic cooling of metal workpieces is achieved, the cooling uniformity is remarkably improved, deformation and residual stress are reduced, the modular carrying frame design adapts to stacking of workpieces of different sizes, the space utilization rate is increased, and the working efficiency is improved. The sealing structure is combined with a medium recovery system, resource waste is avoided, operation safety is enhanced, infrared temperature measurement and intelligent control are linked, it is ensured that the cooling process is precisely matched with material characteristics, the manual intervention requirement is reduced, the overall structure is compact, dismounting, mounting and maintaining are convenient and fast, and the device is suitable for the cooling technology after annealing of various metal materials.

Description

Technical Field

[0001] This utility model relates to the field of annealing and cooling technology for metal parts, and specifically discloses an annealing and cooling device for metal heat treatment. Background Technology

[0002] Annealing is a metal heat treatment process that involves slowly heating a metal to a certain temperature, holding it for a sufficient time, and then cooling it at an appropriate rate. The purpose is to reduce hardness, improve machinability, eliminate residual stress, stabilize dimensions, reduce deformation and cracking tendency, refine grains, adjust microstructure, and eliminate structural defects. More precisely, annealing is a heat treatment process for materials, including both metallic and non-metallic materials. The annealing objectives for new materials also differ from those of traditional metal annealing. Stress-relief annealing addresses the internal stress generated in castings, forgings, and weldments due to varying cooling rates in different parts. Internal stress also arises in metals and alloys during cold deformation processing and machining. If this internal stress is significant and not removed promptly, it often leads to workpiece deformation or even cracking. Stress-relief annealing involves slowly heating the workpiece to a lower temperature, holding it for a period to allow relaxation within the metal, and then slowly cooling it. It should be noted that stress-relief annealing does not completely remove internal stress, but only partially, thus eliminating its harmful effects.

[0003] Existing cooling devices for metal annealing rely on natural cooling during operation, resulting in very slow cooling speeds and low efficiency. Some devices use water cooling technology, but the fixed angle of the water cooling nozzles prevents uniform cooling of metal parts, leading to poor cooling performance. Utility Model Content

[0004] This utility model proposes a metal heat treatment annealing cooling device. By cooperating with a liftable cooling ring and a multi-layer carrying rack, it realizes regional dynamic cooling of metal workpieces, significantly improving the cooling uniformity. The overall structure is compact, and it is convenient to disassemble and maintain. It is suitable for the annealing cooling process of various metal materials.

[0005] This utility model is implemented as follows: a metal annealing cooling device after heat treatment, comprising:

[0006] A cooling cylinder is cylindrical with an open bottom. A lead screw is rotatably connected to the left side of the interior of the cooling cylinder, and a slide rod is fixedly connected to the right side. A nut seat is threaded onto the outer wall of the lead screw, and a slider is slidably connected to the outer wall of the slide rod. A cooling ring is fixedly connected between the nut seat and the slider. A flow divider is fixedly connected to the top of the interior of the cooling cylinder. Multiple evenly distributed atomizing nozzles are provided on the inner wall of the cooling ring and the lower end face of the flow divider.

[0007] The storage rack is located inside the cooling cylinder and consists of multiple racks that are connected vertically. The storage rack includes a grid plate, with multiple legs fixedly connected to the lower end face of the grid plate, and multiple connecting grooves that match the legs are provided on the upper end face of the grid plate.

[0008] As a preferred embodiment of the metal heat treatment annealing cooling device of this utility model, the bottom end of the cooling cylinder is provided with a bracket, the upper end face of the bracket is provided with an annular embedded groove, the bottom end of the cooling cylinder is detachably connected to the inside of the embedded groove, the upper end face of the bracket is provided with a plurality of through holes located inside the embedded groove, and a sealing gasket is fixedly connected to the inside of the embedded groove.

[0009] As a preferred embodiment of the metal heat treatment annealing cooling device of this utility model, hydraulic cylinders are installed on both the left and right sides of the bracket, and support plates are fixedly connected to both the left and right sides of the outer wall of the cooling cylinder, and the output ends of the two hydraulic cylinders are respectively fixedly connected to the two support plates.

[0010] As a preferred embodiment of the metal heat treatment annealing cooling device of this utility model, a collection box with an open top is provided directly below the support.

[0011] As a preferred embodiment of the metal heat treatment annealing cooling device of this utility model, a motor is installed on the top left side of the cooling cylinder, the output end of the motor is fixedly connected to the lead screw, the outer wall of the flow divider and the cooling ring are respectively connected to a first liquid guide pipe and a second liquid guide pipe extending to the outside of the cooling cylinder, and a sliding sealing sleeve is provided at the connection between the second liquid guide pipe and the cooling cylinder.

[0012] As a preferred embodiment of the metal heat treatment annealing cooling device of this utility model, an infrared thermometer is provided on the front end surface of the outer wall of the flow divider plate.

[0013] In a preferred embodiment of the metal heat treatment annealing cooling device of this utility model, both the motor and the infrared thermometer are electrically connected to an external control system.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a liftable cooling ring in conjunction with a multi-layered rack to achieve regional dynamic cooling of metal workpieces, significantly improving cooling uniformity, reducing deformation and residual stress. The modular rack design adapts to the stacking of workpieces of different sizes, improving space utilization. The sealed structure combined with a media recovery system avoids resource waste and enhances operational safety. Infrared temperature measurement and intelligent control are linked to ensure that the cooling process is precisely adapted to material characteristics, reducing the need for manual intervention. The overall structure is compact, easy to disassemble and maintain, and suitable for post-annealing cooling processes of various metal materials. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a front sectional view of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged structural diagram of the shelf of this utility model;

[0019] Figure 3 This is a top view of the cooling ring structure of this utility model;

[0020] Figure 4 This is a top view of the bracket structure of this utility model.

[0021] The markings in the diagram are: 1. Cooling cylinder; 2. Lead screw; 3. Slide rod; 4. Nut seat; 5. Slider; 6. Cooling ring; 7. Atomizing nozzle; 8. Diverter plate; 9. Carrier; 10. Grid plate; 11. Support leg; 12. Connecting groove; 13. Bracket; 14. Embedded groove; 15. Through hole; 16. Sealing gasket; 17. Hydraulic cylinder; 18. Support plate; 19. Collection box; 20. Motor; 21. First liquid guide pipe; 22. Second liquid guide pipe; 23. Sliding sealing sleeve; 24. Infrared thermometer. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-4 A metal annealing cooling apparatus after heat treatment, comprising:

[0024] Cooling cylinder 1 is cylindrical with an open bottom. Inside the cooling cylinder 1, a lead screw 2 is rotatably connected to the left side and a slide rod 3 is fixedly connected to the right side. A nut seat 4 is threadedly connected to the outer wall of the lead screw 2 and a slider 5 is slidably connected to the outer wall of the slide rod 3. A cooling ring 6 is fixedly connected between the nut seat 4 and the slider 5. A flow divider 8 is fixedly connected to the top of the cooling cylinder 1. Multiple evenly distributed atomizing nozzles 7 are provided on the inner wall of the cooling ring 6 and the lower end face of the flow divider 8.

[0025] The storage rack 9 is located inside the cooling cylinder 1. Multiple storage racks are provided and are connected vertically. The storage rack 9 includes a grid plate 10. Multiple support legs 11 are fixedly connected to the lower end face of the grid plate 10. Multiple connecting grooves 12 that match the support legs 11 are opened on the upper end face of the grid plate 10.

[0026] In this embodiment: the first liquid guide pipe 21 and the second liquid guide pipe 22 are both connected to an external cooling medium source. The motor 20 drives the lead screw 2 to rotate, which drives the nut seat 4 and the cooling ring 6 to move up and down along the slide bar 3. At the same time, the atomizing nozzle 7 on the inner wall of the cooling ring 6 sprays the cooling medium. The cooperation between the lead screw 2 and the slide bar 3 ensures that the cooling ring 6 moves smoothly, so that the atomizing nozzle 7 can cover different height areas of the workpiece, solving the problem of uneven cooling of traditional fixed nozzles.

[0027] Multiple shelves 9 are connected vertically by legs 11 and connecting grooves 12 to form a multi-layer grid plate 10 structure. After the workpieces are placed in layers, the cooling medium sprayed by the atomizing nozzles 7 can penetrate the grid gaps to achieve synchronous cooling of the upper and lower surfaces of the workpieces, avoiding local temperature differences caused by single-layer accumulation.

[0028] The bracket 13 has a sealing gasket 16 in the embedded groove 14. After the bottom end of the cooling cylinder 1 is embedded, a sealed cavity is formed to prevent the cooling medium from overflowing. The cooled medium flows into the collection box 19 through the through hole 15 to achieve recycling and reduce waste.

[0029] An infrared thermometer 24 is installed at the front end of the flow divider 8 to monitor the surface temperature of the workpiece in real time and feed the data back to the external control system, which in turn adjusts the speed of the motor 20 to achieve dynamic temperature matching.

[0030] As a technical optimization of this utility model, a support 13 is provided at the bottom of the cooling cylinder 1, and an annular embedded groove 14 is provided on the upper end surface of the support 13. The bottom end of the cooling cylinder 1 is detachably connected to the inside of the embedded groove 14. A plurality of through holes 15 located inside the embedded groove 14 are provided on the upper end surface of the support 13. A sealing gasket 16 is fixedly connected to the inside of the embedded groove 14.

[0031] In this embodiment: the embedded groove 14 of the bracket 13 cooperates with the sealing gasket 16, so that the cooling cylinder 1 can be quickly disassembled and assembled, making it easy to clean the internal residual medium. The through hole 15 guides the condensate to flow into the collection box 19 in a directional manner, avoiding liquid accumulation and corrosion of the equipment.

[0032] As a technical optimization of this utility model, hydraulic cylinders 17 are installed on both the left and right sides of the bracket 13, and support plates 18 are fixedly connected to both the left and right sides of the outer wall of the cooling cylinder 1. The output ends of the two hydraulic cylinders 17 are fixedly connected to the two support plates 18 respectively.

[0033] In this embodiment, the hydraulic cylinder 17 pushes the support plate 18 to lift the cooling cylinder 1, which facilitates quick loading and unloading of workpieces.

[0034] As a technical optimization of this utility model, a collection box 19 with an upper opening is provided directly below the support 13.

[0035] In this embodiment: the collection box 19 receives the cooling medium, which is convenient for filtration and recycling, thus saving costs.

[0036] As a technical optimization of this utility model, a motor 20 is installed on the top left side of the cooling cylinder 1. The output end of the motor 20 is fixedly connected to the lead screw 2. The outer walls of the diverter plate 8 and the cooling ring 6 are respectively connected to a first liquid guide pipe 21 and a second liquid guide pipe 22 extending to the outside of the cooling cylinder 1. A sliding sealing sleeve 23 is provided at the connection between the second liquid guide pipe 22 and the cooling cylinder 1.

[0037] In this embodiment: the sliding sealing sleeve 23 ensures that the second liquid guide tube 22 remains sealed when it moves with the cooling ring 6, thus preventing medium leakage. The motor 20 drives the lead screw 2 to realize the automatic lifting and lowering of the cooling ring 6, reducing manual intervention.

[0038] As a technical optimization of this utility model, an infrared thermometer 24 is provided on the front end surface of the outer wall of the diverter plate 8.

[0039] In this embodiment, the infrared thermometer 24, combined with the external control system, forms a closed-loop regulation, dynamically optimizing the moving speed of the cooling ring 6 based on the real-time temperature.

[0040] As a technical optimization of this utility model, both the motor 20 and the infrared thermometer 24 are electrically connected to the external control system.

[0041] In this embodiment, both the motor 20 and the infrared thermometer 24 are electrically connected to the external control system for easy operation and control.

[0042] The working principle and usage process of this utility model are as follows: In use, the annealed metal workpieces are placed in layers on the grid plate 10 of the carrier 9. The multi-layer stacking is achieved by the nesting of the support legs 11 and the connecting groove 12. The hydraulic cylinder 17 pushes the support plate 18, so that the cooling cylinder 1 descends into the embedded groove 14 of the bracket 13. The sealing gasket 16 is pressed to form a sealed cavity. The external pumping system delivers the cooling medium to the diversion plate 8 and the cooling ring 6 through the first liquid guide pipe 21 and the second liquid guide pipe 22. The motor 20 drives the lead screw 2 to rotate. The nut seat 4 drives the cooling ring 6 to rise and fall at a uniform speed along the slide bar 3. The atomizing nozzle 7 performs a spiral trajectory up and down scanning spray on the workpiece. The infrared thermometer 24 continuously monitors the surface temperature of the workpiece and feeds the data back to the control system, which automatically adjusts the speed of the motor 20. The sprayed medium and condensate fall through the grid plate 10 and flow into the collection box 19 through the through hole 15 of the bracket 13. After cooling is completed, the hydraulic cylinder 17 lifts the cooling cylinder 1, and the operator takes out the carrier 9 and unloads the workpiece.

[0043] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A metal heat treatment post annealing cooling device, characterized by: include: Cooling cylinder (1), the cooling cylinder is cylindrical and open at the bottom, the left side of the cooling cylinder (1) is rotatably connected to a lead screw (2), the right side is fixedly connected to a slide rod (3), the outer wall of the lead screw (2) is threadedly connected to a nut seat (4), the outer wall of the slide rod (3) is slidably connected to a slider (5), a cooling ring (6) is fixedly connected between the nut seat (4) and the slider (5), a flow divider plate (8) is fixedly connected to the top of the cooling cylinder (1), and multiple evenly distributed atomizing nozzles (7) are provided on the inner wall of the cooling ring (6) and the lower end face of the flow divider plate (8); The shelf (9) is located inside the cooling cylinder (1) and is provided in multiple ways and spliced ​​together. The shelf (9) includes a grid plate (10). Multiple support legs (11) are fixedly connected to the lower end face of the grid plate (10). Multiple connecting grooves (12) matching the support legs (11) are opened on the upper end face of the grid plate (10).

2. A metal heat treatment post-annealing cooling device according to claim 1, characterized in that: The cooling cylinder (1) has a support (13) at its bottom end. The upper end face of the support (13) has an annular embedded groove (14). The bottom end of the cooling cylinder (1) is detachably connected to the inside of the embedded groove (14). The upper end face of the support (13) has multiple through holes (15) located inside the embedded groove (14). A sealing gasket (16) is fixedly connected to the inside of the embedded groove (14).

3. A metal heat treatment post-annealing cooling device according to claim 2, characterized in that: Hydraulic cylinders (17) are installed on both the left and right sides of the bracket (13), and support plates (18) are fixedly connected to both the left and right sides of the outer wall of the cooling cylinder (1). The output ends of the two hydraulic cylinders (17) are fixedly connected to the two support plates (18) respectively.

4. A metal heat treatment post-annealing cooling device according to claim 2, characterized in that: A collection box (19) with an open top is provided directly below the support (13).

5. The metal heat treatment post-annealing cooling device according to claim 1, characterized in that: A motor (20) is installed on the top left side of the cooling cylinder (1). The output end of the motor (20) is fixedly connected to the lead screw (2). The outer walls of the diverter plate (8) and the cooling ring (6) are respectively connected to a first liquid guide pipe (21) and a second liquid guide pipe (22) extending to the outside of the cooling cylinder (1). A sliding sealing sleeve (23) is provided at the connection between the second liquid guide pipe (22) and the cooling cylinder (1).

6. A metal heat treatment post-annealing cooling device according to claim 5, characterized in that: An infrared thermometer (24) is provided on the front end of the outer wall of the diverter plate (8).

7. A metal heat treatment post-annealing cooling device according to claim 6, characterized in that: Both the motor (20) and the infrared thermometer (24) are electrically connected to the external control system.

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