Automatic cushion annealing device

Abstract

The utility model discloses a kind of spring washer automatic annealing device, it is related to spring washer annealing technical field, including the annealing box of spring washer is carried out annealing treatment, conveying spring washer is arranged in annealing box transmission mesh belt, the hot air generated when annealing box is carried out annealing to spring washer is respectively conveyed to preheating and cooling area, cooling zone is cooled to spring washer by mixing into normal temperature air in hot air to change gas temperature, improve the cooling effect of device, the utility model is reduced by the recycling use of hot air energy consumption of device, and heating efficiency is improved simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of spring washer annealing technology, and in particular to an automated spring washer annealing device. Background Technology

[0002] Spring washers, as a common fastening component, have performance closely related to the microstructure and internal stress of the metal material. To eliminate internal stress generated by cold working and reduce hardness to improve toughness, spring washers usually need to be annealed. The core of the annealing process lies in the precise heating, holding, and controlled cooling of the material. The annealing equipment commonly used in industry is mostly box furnace or continuous annealing furnace. These types of equipment perform stably when processing spring washers of specific specifications, but they also have obvious limitations. First, when the size or stacking height of the spring washers changes, the fixed layout of the heating elements may lead to uneven heating, with some areas overheating while other areas are underheated, thus affecting the uniformity and consistency of the annealing quality. Second, during the loading and unloading process of traditional equipment, the opening of the furnace door will cause a large amount of heat to be lost, which not only wastes energy but also disrupts the stability of the temperature field inside the furnace, affecting the stability of the process.

[0003] Chinese utility model patent CN212504974U discloses an annealing device for the production of spring washers. This device heats the spring washers by setting up a cylindrical device and then discharges the spring washers after heating. This device cannot recycle the generated hot air, nor can it effectively cool the spring washers. Direct contact with room temperature air can easily cause quality problems of the spring washers. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model discloses an automated annealing device for spring pads.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an automated annealing device for spring pads, including an annealing box, a circulation chamber provided at the lower end of the annealing box, a circulation box one and a circulation box two provided at the upper end of the annealing box, the circulation chamber being connected to circulation box one and circulation box two, circulation box two preheating the spring pads, circulation box one cooling the spring pads, an air inlet box provided on circulation box one, the air inlet box communicating with a temperature sensor, a valve provided on the air inlet box, multiple sets of filter plates provided on the side of the air inlet box, a temperature sensor provided at the upper end of both circulation box one and circulation box two, and a valve provided at the lower end of both circulation box one and circulation box two.

[0006] Furthermore, ventilation boxes are provided on both sides of the annealing chamber, the circulation chamber is connected to the ventilation boxes, and the ventilation boxes are connected to circulation box one and circulation box two through connecting pipes.

[0007] Furthermore, a conveyor belt is rotatably mounted at the lower end of the annealing chamber, and a motor is mounted on the side of the annealing chamber, with the output shaft of the motor connected to the conveyor belt.

[0008] Furthermore, baffles are slidably provided at both ends of the annealing box.

[0009] Furthermore, an electric heating block is slidably disposed on the upper end of the annealing box, and the electric heating block heats a pair of spring washers.

[0010] Furthermore, electric heating blocks are provided on both sides of the annealing chamber, and the electric heating blocks heat the spring washers.

[0011] Furthermore, a recycling bin is provided at one end of the annealing box near the circulation box.

[0012] Furthermore, a support base is provided at one end of the annealing box near the second circulation box, and a feed box is slidably mounted on the support base.

[0013] Furthermore, a spring is provided between the feed box and the support base, and a cam is rotatably provided on the support base, the cam being in contact with the lower end of the feed box.

[0014] Furthermore, the feed box is provided with an inclined surface, and the lowest end of the inclined surface of the feed box is aligned with the conveyor belt.

[0015] The advantages of this invention compared to the prior art are as follows: The electric heating block 1 and the baffle provided in this invention can be adjusted according to the height of the annealed spring washer. The adjustment of the electric heating block 1 ensures sufficient heating of the spring washer, and the adjustment of the baffle position can ensure the temperature inside the annealing chamber while reducing heat loss. While the electric heating block 1 and the electric heating block 2 are heating the spring washer, the hot air inside the annealing chamber is used for preheating and cooling of the spring washer through the circulation chamber 1 and the circulation chamber 2, which improves the utilization efficiency of hot air and reduces energy consumption. Moreover, the circulation chamber 1 and the circulation chamber 2 automatically adjust the air temperature according to the needs, which improves the annealing efficiency of the spring washer of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a front view of the overall structure of this utility model.

[0018] Figure 3 for Figure 2 Cross-sectional view of the structure along the AA direction.

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

[0020] Figure 5 This is a schematic diagram of the installation position of the air intake box of this utility model.

[0021] Attached figures: 1-annealing chamber; 2-motor one; 3-conveyor belt; 4-air exchange box; 5-connecting pipe; 6-baffle; 7-electric cylinder one; 8-circulation box one; 9-circulation box two; 10-temperature sensor; 11-air inlet box; 12-electric cylinder two; 13-recovery box; 14-support base; 15-feed box; 16-spring; 17-valve; 18-filter plate; 19-air pump; 20-cam; 21-electric heating block one; 22-electric heating block two; 23-circulation chamber. Detailed Implementation

[0022] refer to Figure 1 The illustrated automated annealing device for spring washers includes an annealing chamber 1 for annealing spring washers. The annealing chamber 1 is equipped with a conveyor belt 3 that moves the spring washers. The annealing chamber 1 sequentially preheats, heats, and cools the spring washers, and recovers and utilizes the heat generated during the heating process. The heat is then transported through hoses to circulation chamber 8 and circulation chamber 9. Circulation chamber 8 cools the spring washers, and circulation chamber 9 preheats the spring washers. The heating efficiency of the device is improved by recycling the hot air.

[0023] refer to Figures 1 to 5 The annealing chamber 1 shown is rotatably equipped with a conveyor belt 3. Two sets of motors 2 are arranged on the side of the annealing chamber 1. The output shaft of the motors 2 is connected to the conveyor belt 3. When the motors 2 are started, the motors 2 drive the conveyor belt 3 to rotate, and the spring washer is placed on the conveyor belt 3. The conveyor belt 3 drives the spring washer to move.

[0024] The annealing chamber 1 has openings on both sides, and baffles 6 are slidably installed at the openings of the annealing chamber 1. An electric cylinder 7 is also installed at the top of the annealing chamber 1. The movable end of the electric cylinder 7 is connected to the baffle 6. When the electric cylinder 7 is started, the electric cylinder 7 drives the baffle 6 to move. The baffle 6 blocks the opening of the annealing chamber 1. The position of the baffle 6 is adjusted according to the height of the spring pad on the conveyor belt 3 to ensure feeding while reducing the loss of heat in the annealing chamber 1.

[0025] The annealing chamber 1 is equipped with a first circulation chamber 8, a second circulation chamber 9, and an electric cylinder 12 at its upper end. The first circulation chamber 8 and the second circulation chamber 9 are respectively located at both ends of the annealing chamber 1. The second circulation chamber 9 preheats the spring washers inside the annealing chamber 1, and the first circulation chamber 8 cools the spring washers inside the annealing chamber 1. The movable end of the electric cylinder 12 is equipped with an electric heating block 21. Two sets of electric heating blocks 22 are installed inside the annealing chamber 1. The two sets of electric heating blocks 22 are symmetrically arranged on both sides inside the annealing chamber 1. The first electric heating block 21 and the second electric heating block 22 heat the spring washers. When the electric cylinder 12 is activated, it drives the first electric heating block 21 to move, changing the distance between the first electric heating block 21 and the spring washers, thereby improving the heating efficiency of the first electric heating block 21 on the spring washers.

[0026] Both circulation chamber 1 (8) and circulation chamber 2 (9) are located inside the annealing chamber 1 at their lower ends. Air pumps 19 are installed at the lower ends of both circulation chamber 1 (8) and circulation chamber 2 (9), blowing hot air onto the spring washers. Temperature sensors 10 are installed on both circulation chamber 1 (8) and circulation chamber 2 (9), detecting the air temperature inside them. Heating elements are also installed inside circulation chamber 1 (8) and circulation chamber 2 (9). When the air temperature inside circulation chamber 1 (8) and circulation chamber 2 (9) is lower than the required temperature, the heating elements are activated to heat the air inside them.

[0027] An air inlet box 11 is provided at the upper end of the circulation box 8, and the air inlet box 11 is connected to the circulation box 8. A valve 17 is provided at the lower end of the air inlet box 11, and the valve 17 controls the connection between the air inlet box 11 and the circulation box 8. Multiple sets of filter plates 18 are provided on the side of the air inlet box 11. The filter plates 18 filter the air entering the circulation box 8. When the air temperature in the circulation box 8 is high and needs to be cooled, the valve 17 is opened, and the valve 17 connects the air inlet box 11 and the circulation box 8. At this time, the air enters the air inlet box 11 through the filter plates 18, and then enters the circulation box 8 through the air inlet box 11, where it mixes with the air in the circulation box 8 to reduce the air temperature in the circulation box 8, so that the air temperature in the circulation box 8 meets the cooling temperature of the spring gasket.

[0028] The annealing chamber 1 has a circulation chamber 23 at the bottom. There are air exchange boxes 4 on both sides of the circulation chamber 23. The air exchange boxes 4 are equipped with connecting pipes 5. The air exchange boxes 4 are connected to circulation box 8 and circulation box 9 respectively through the connecting pipes 5. The hot air generated in the annealing chamber 1 enters the air exchange box 4 through the circulation chamber 23, and then enters circulation box 8 and circulation box 9 through the connecting pipes 5, so as to realize the recycling of hot air.

[0029] The annealing chamber 1 is equipped with a support base 14 at one end of the circulation box 9. A feed box 15 is slidably mounted on the support base 14. A spring 16 is installed between the feed box 15 and the support base 14. A motor 2 is mounted on the support base 14. A cam 20 is installed on the output shaft of the motor 2. The cam 20 is in contact with the lower end of the feed box 15. When the motor 2 starts, it drives the cam 20 to rotate. The cam 20 drives the feed box 15 to slide on the support base 14. The feed box 15 slides back and forth on the support base 14 through the spring 16, and the spring pads in the feed box 15 are placed on the conveyor belt 3.

[0030] The feed box 15 is provided with an inclined surface, and the lowest position of the inclined surface on the feed box 15 is aligned with the conveyor belt 3. A spring washer is placed inside the feed box 15.

[0031] The annealing box 1 is equipped with a circulation box 8 at one end and a recycling box 13 at the other end. After the spring pads on the conveyor belt 3 are cooled, they fall into the recycling box 13.

[0032] During operation, the spring washer is placed on the feed box 15. The height of the baffle 6 is adjusted according to the height of the spring washer. The electric cylinder 7 is started, and the electric cylinder 7 drives the baffle 6 to slide on the annealing box 1 to ensure that the spring washer can pass through the baffle 6. The electric cylinder 12 is started, and the electric heating block 22 moves close to the spring washer. The electric heating block 22 and the electric heating block 21 are started to heat the spring washer. At this time, the temperature inside the annealing box 1 rises, and the air temperature inside the circulation chamber 23 rises at the same time.

[0033] Start motor 2. Motor 2 drives cam 20 to rotate. Cam 20 drives feed box 15 to slide back and forth on support seat 14. When feed box 15 slides back and forth, the spring pad on feed box 15 is placed on conveyor belt 3. Start motor 2. Motor 2 drives conveyor belt 3 to rotate. Conveyor belt 3 drives spring pad into annealing box 1. Conveyor belt 3 drives spring pad through circulation box 2 9, electric heating block 21 and circulation box 8 in sequence, and then drops into recycling box 13.

[0034] When electric heating block 1 21 and electric heating block 22 are started, they heat the spring gaskets. At the same time, the air in the annealing chamber 1 is heated, and multiple sets of air pumps 19 are started. At this time, the air pumps 19 draw the air in the circulation chamber 23 into the air exchange box 4. The air enters the circulation box 2 9 through the air exchange box 4 and the connecting pipe 5. At this time, the temperature sensor 10 detects the air temperature in the circulation box 2 9. Since the circulation box 2 9 preheats the spring gaskets, if the temperature sensor 10 on the circulation box 2 9 detects that the temperature in the circulation box 2 9 is too low, the heating element on the circulation box 2 9 is started. The heating element heats the air in the circulation box 2 9, and then the air is discharged by the air pump 19 and blown towards the spring gaskets that have just entered the annealing chamber 1.

[0035] Air also enters the circulation box 8 through the air exchange box 4 and the connecting pipe 5. At this time, the temperature sensor 10 detects the air temperature in the circulation box 8. Since the circulation box 8 cools the spring gasket, if the air temperature in the circulation box 8 is too low, it will have a negative impact on the cooling of the spring gasket. The heating element on the circulation box 8 is then activated. The heating element heats the air in the circulation box 8. After heating, the air is blown onto the spring gasket through the air pump 19 at the lower end of the circulation box 8, thereby cooling the spring gasket.

[0036] When the temperature sensor 10 detects that the air temperature in the circulation box 8 is too high, the air in the circulation box 8 needs to be cooled. At this time, two sets of valves 17 are opened. The valves 17 absorb room temperature air through the air intake box 11. The air enters the air intake box 11 after being filtered by the filter plate 18, and then enters the circulation box 8 through the air intake box 11 to cool the air in the circulation box 8. After the air is cooled, it is blown onto the spring gasket by the air pump 19 to cool the spring gasket.

[0037] After the spring washer has cooled down, it is collected in the recycling bin 13.

Claims

1. An automated annealing device for spring pads, comprising an annealing chamber (1), characterized in that: The annealing chamber (1) is provided with a circulation chamber (23) at its lower end. The annealing chamber (1) is provided with a circulation box one (8) and a circulation box two (9) at its upper end. The circulation chamber (23) is connected to the circulation box one (8) and the circulation box two (9). The circulation box two (9) preheats the spring gasket, and the circulation box one (8) cools the spring gasket. The circulation box one (8) is provided with an air inlet box (11). The air inlet box (11) is connected to a temperature sensor (10). The air inlet box (11) is provided with a valve (17). The side of the air inlet box (11) is provided with multiple sets of filter plates (18). The circulation box one (8) and the circulation box two (9) are both provided with a temperature sensor (10) at their upper ends. The circulation box one (8) and the circulation box two (9) are both provided with a valve (17) at their lower ends.

2. The automated annealing device for spring pads according to claim 1, characterized in that: The annealing chamber (1) is provided with air exchange chambers (4) on both sides. The circulation chamber (23) is connected to the air exchange chamber (4). The air exchange chamber (4) is connected to circulation chamber one (8) and circulation chamber two (9) through connecting pipe (5).

3. The automated annealing device for spring pads according to claim 1, characterized in that: The annealing box (1) is rotatably equipped with a conveyor belt (3) at its lower end, and a motor (2) is provided on the side of the annealing box (1). The output shaft of the motor (2) is connected to the conveyor belt (3).

4. The automated annealing device for spring pads according to claim 1, characterized in that: Both ends of the annealing box (1) are slidably equipped with baffles (6).

5. The automated annealing device for spring pads according to claim 1, characterized in that: An electric heating block (21) is slidably disposed on the upper end of the annealing box (1), and the electric heating block (21) heats the spring washer.

6. The automated annealing device for spring pads according to claim 1, characterized in that: The annealing box (1) is provided with two electric heating blocks (22) on both sides, which heat the spring pads.

7. The automated annealing device for spring pads according to claim 1, characterized in that: The annealing box (1) is provided with a recycling box (13) at one end near the circulation box (8).

8. The automated annealing device for spring pads according to claim 1, characterized in that: The annealing box (1) is provided with a support base (14) at one end near the circulation box (9), and a feed box (15) is slidably provided on the support base (14).

9. The automated annealing device for spring pads according to claim 8, characterized in that: A spring (16) is provided between the feed box (15) and the support base (14), and a cam (20) is rotatably provided on the support base (14), and the cam (20) is in contact with the lower end of the feed box (15).

10. An automated annealing device for spring pads according to claim 9, characterized in that: The feed box (15) is provided with an inclined surface, and the lowest end of the inclined surface of the feed box (15) is aligned with the conveyor belt (3).

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