Heat treatment equipment and method for hexagonal nut production and processing

Abstract

The invention discloses heat treatment equipment and method for hexagonal nut production and machining, and relates to the technical field of heat treatment. Comprising a shell, an air heater is fixedly connected to the outer side of the shell, an exhaust fan is fixedly connected to the top of the shell, an inner cavity is formed in the shell, an air inlet is formed in the side, close to the air heater, of the shell, and a through groove is formed in the top, close to the exhaust fan, of the shell. According to the heat treatment equipment and method for hexagonal nut production and processing, airflow distribution in the heating space can be relatively uniform through two-side air inlet, the phenomenon of local overheating or supercooling possibly caused by single-side air inlet is avoided, hot air is blown to the nut placed in the middle from the two sides, all parts of the nut can uniformly receive heat, and the heat treatment efficiency is improved. The temperature gradient is effectively reduced, so that the heat treatment quality and consistency are improved, and meanwhile, the top air outlet can effectively prevent particles such as impurities and dust generated in the heat treatment process from being accumulated in a heating area.

Description

Technical Field

[0001] The invention relates to the field of heat treatment technology, and in particular to heat treatment equipment and a method for producing and processing hexagonal nuts. Background Art

[0002] Hexagonal nuts are used in automobile manufacturing to connect key components such as engines and chassis to ensure the safety and stability of vehicle driving. In the construction industry, they are used to connect steel structures and bear huge loads. In electronic equipment, they are used to fix components such as circuit boards to ensure the normal operation of the equipment. Its versatility and importance have led to a steady growth in the demand for hexagonal nuts. Generally, a continuous heat treatment furnace is used. The nuts are placed on the conveyor belt of the continuous heat treatment furnace, and then the nuts are transported to the heating furnace by the conveyor belt. The nuts are heated by the gas components in the heating furnace to complete the heat treatment of the nuts.

[0003] In the prior art, during the heat treatment of nuts, the heat inside the equipment is unevenly distributed, resulting in uneven heating of the nuts. At the same time, due to their small size, some nuts are easily stuck in the gaps between the conveyor belts, causing damage to the conveyor belts. If a pallet is directly installed on the top surface of the conveyor belt, it is necessary to remove the pallet from the conveyor belt in time after the heat treatment of the nuts is completed to prevent the pallet from being rolled into the bottom of the conveyor belt and causing damage to the conveyor belt. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A heat treatment device and method for producing and processing hexagonal nuts, comprising a body, and a bracket fixedly installed at the bottom of the body, the number of the brackets being two, and the two brackets being symmetrically arranged at the bottom of the body;

[0005] A conveying assembly, which is fixedly mounted on the outside of the main body, passes through the main body, is fixedly connected to the outside of the conveying assembly with a motor, and a collecting frame is provided at the bottom of the discharge end of the conveying assembly;

[0006] Among them, the body includes a housing, the housing is fixedly connected to the bracket, a hot air blower is fixedly connected to the outside of the housing, and an exhaust fan is fixedly connected to the top of the housing. Place the hexagon nut on the conveying component, the motor is externally powered to work, the motor drives the conveying component to work, and the conveying component drives the hexagon nut to move into the inner cavity of the housing. At this time, the hot air blowers on both sides of the housing work, so that the hot air enters the interior of the inner cavity through the through grooves on both sides. The hot air contacts the hexagon nuts on the conveyor belt, and then the hot air is discharged through the exhaust fan at the top. The air flow distribution in the heating space can be relatively uniform through the air intake on both sides, avoiding the phenomenon of local overheating or overcooling that may be caused by single-sided air intake. The hot air blows from both sides to the nuts placed in the middle, so that each part of the nut can receive heat more evenly, effectively reducing the temperature gradient, thereby improving the quality and consistency of heat treatment. At the same time, the air outlet at the top can effectively prevent the accumulation of particles such as impurities and dust generated during the heat treatment process in the heating area, reducing the possibility of impurities adhering to the surface of the nut, which is beneficial to ensuring the surface quality of the nut and avoiding surface defects or performance degradation caused by the influence of impurities. An inner cavity is provided inside the housing, an air inlet is provided on one side of the housing close to the hot air blower, and a through groove is provided at the top of the housing close to the exhaust fan.

[0007] Preferably, through holes are formed inside the housing. The inner wall of the through hole is fixedly connected with cleaning brushes. There are multiple cleaning brushes, and the multiple cleaning brushes are divided into two groups. One group of cleaning brushes is symmetrically arranged at both vertical ends of the through hole. The inner wall of the inner cavity is fixedly connected with a fixed block. The fixed block is located at the middle of the bottom of the inner cavity. The top of the fixed block is fixedly connected with a trapezoidal block. By setting the trapezoidal block, when hot air enters the inner cavity from both sides, it will be forced to flow along the surface of the trapezoidal block when it encounters the trapezoidal block at the bottom. Since the shape and arrangement of the trapezoidal block are uniform, the hot air will be evenly split and guided, so as to form a relatively uniform air flow distribution in the entire bottom area. The trapezoidal block is vertically arranged with the fixed block. The fixed block is trapezoidal in shape, and the side of the fixed block is parallel to the inclination direction of the inclined plate. The hot air enters the interior of the inner cavity through the through groove, and then the hot air enters the space between two adjacent trapezoidal blocks along the gap between the inclined plate and the fixed block. Thus, the hot air contacts the hexagonal nuts on the top conveyor belt. The inclined entry of the hot air can make the air flow form a circulating flow in a specific direction inside the inner cavity, which is beneficial to evenly transfer heat to each corner, reduce the temperature stratification phenomenon, and make the nuts receive heat more evenly. At the same time, the inclined hot air forms a certain angle with the surface of the nut, making the path of the hot air flow over the nut longer, increasing the contact time and contact area between the hot air and the nut, and helping to improve the heat exchange efficiency. There are multiple trapezoidal blocks, and the multiple trapezoidal blocks are evenly distributed on the top of the fixed block. The inner side wall of the inner cavity is fixedly connected with inclined plates. There are two inclined plates, and the two inclined plates are symmetrically arranged with the fixed block as the center. A round rod is fixedly connected to the side of the inclined plate close to the trapezoidal block, and the round rod and the trapezoidal block are arranged alternately. A spiral plate is fixedly connected to the inside of the through groove. By setting the spiral plate, the spiral plate can guide the air flow to flow along a spiral path, making the discharged air flow more orderly, avoiding the situation of too fast or too slow local air flow, so as to ensure the uniform discharge of the air flow at the entire through groove. In this way, the stability of the air flow inside the inner cavity of the housing can be maintained, providing a uniform thermal environment for the nuts. At the same time, some impurities or dust may be generated inside the inner cavity. The spiral structure of the spiral plate forms a channel similar to a maze, which can, to a certain extent, prevent these impurities from flowing out with the air flow and then flowing back into the inner cavity again, thus ensuring the cleanliness of the chamber and being beneficial to improving the surface quality of the nuts.

[0008] Preferably, the conveying assembly includes a rotating shaft, with a roller fixedly connected to the outer side of the rotating shaft. The rotating shaft is fixedly connected to the output end of the motor. The motor is externally connected to a power supply to operate. When the motor operates, it drives the rotating shaft to rotate, and the rotating shaft drives the roller to rotate, causing the roller to drive the conveyor belt to rotate, thereby driving the hex nuts into the inner cavity of the housing. A limiting member is fixedly connected to the outer side of the housing, and the limiting member is located at the discharge end of the conveying assembly. An adjusting assembly is fixedly connected to the outer side of the housing, and the adjusting assembly is located at the feeding end of the conveying assembly. The limiting member is fixedly connected to the motor. A conveyor belt is rotatably connected to the outer side of the roller. During the heat treatment process of the hex nuts, a large amount of heat is generated. By providing square holes on the conveyor belt, hot air can flow up and down through the conveyor belt, enabling the nuts to dissipate heat better during transportation, avoiding heat accumulation that may cause the nuts to overheat or have uneven temperatures, and helping to improve the quality and consistency of the heat treatment. At the same time, the square holes increase the contact area between the nuts and the hot air, allowing the hot air to surround the nuts more fully and promoting heat exchange, thereby enhancing the effect and efficiency of the heat treatment. The conveyor belt passes through the housing through the inner cavity and through holes. One side of the conveyor belt passes through the housing through the through holes. Square holes are provided on the outer side of the conveyor belt, and the number of square holes is multiple. The multiple square holes are evenly distributed on the conveyor belt. A fixing member is fixedly connected to the outer side of the conveyor belt, and the fixing member is arranged at the interval between two adjacent square holes.

[0009] Preferably, the fixing member includes an annular plate, and the annular plate is fixedly connected to the conveyor belt. The number of annular plates is multiple, and the multiple annular plates are evenly distributed on the conveyor belt. The magnetism between two magnetic plates is opposite. Place the hex nuts on the conveyor belt. Under the gravity of the hex nuts, contact and extrusion occur between the cylinder and the hex nuts. The cylinder is stressed and drives the magnetic plate to move away from the hex nuts, enabling the hex nuts to pass through the cylinder. Subsequently, under the mutual suction force between the two magnetic plates, the cylinder resets. At this time, the cylinder is located inside the hex nuts, and at the same time, the hex nuts are located inside the square holes. When the conveyor belt drives the hex nuts to move, the side of the hex nut located below the square hole comes into contact with the round rod, and the hex nut rotates. As the conveyor belt continues to move, the hex nuts rotate inside the inner cavity, allowing each of their surfaces to have the opportunity to be evenly exposed to the hot air, avoiding local overheating or overcooling. Since the hot air enters the treatment area from different directions, each part of the nut can fully absorb heat during rotation, thereby achieving a more uniform heating effect and improving the quality and consistency of the heat treatment. Round holes are provided inside the annular plate, and the round holes are symmetrically arranged inside the annular plate. A magnetic plate is slidably connected to the inner wall of the round hole, and a cylinder is fixedly connected to the outer side of the magnetic plate. The cylinder penetrates the annular plate.

[0010] Preferably, the adjusting assembly includes a fixing plate fixedly connected to the housing. There are two fixing plates symmetrically arranged about a rotating shaft. A slider is slidably connected inside the fixing plate, and a bearing is fixedly connected inside the slider. By utilizing the elastic property of the compression spring, the compression spring expands and contracts itself to adapt to the tension change of the conveyor belt, enabling the conveyor belt to be in a proper tension state, ensuring its stable operation, avoiding over-tightening of the conveyor belt that may cause excessive stretching, wear, or even breakage, and at the same time preventing the conveyor belt from being too loose and causing slipping, thereby protecting the conveyor belt and reducing the frequency and cost of replacing the conveyor belt. The end of the rotating shaft is located inside the bearing. A chute is formed inside the fixing plate, and a positioning block is slidably connected to the inner wall of the chute. One end of the positioning block close to the slider is fixedly connected to a fixing rod, and the other end of the positioning block away from the fixing rod is fixedly connected to a compression spring. The end of the compression spring away from the positioning block is fixedly connected to the housing.

[0011] Preferably, the limiting member includes a square plate fixedly connected to the housing. There are two square plates. An intermediate plate is fixedly connected to the end of the square plate away from the housing. The two ends of the intermediate plate are respectively connected to the two square plates. A rotating plate is rotatably connected to the outside of the rotating shaft and is symmetrically arranged about the roller. The conveyor belt drives the hexagon nut to move to the limiting member. By utilizing the elastic property of the return spring, the connecting plate and the arc plate are brought into contact with the conveyor belt, causing contact and extrusion between the arc plate and the hexagon nut inside the square hole. The cylinder is forced to move away from the hexagon nut, causing the hexagon nut to leave the conveyor belt. Thus, the hexagon nut moves downward along the adjacent two guiding blocks and falls into the collection box. A connecting plate is fixedly connected to the opposite side of the rotating plate. An arc plate is fixedly connected to the side of the connecting plate close to the conveyor belt. The arc plate and the square hole are in the same vertical plane. A return spring is fixedly connected to the side of the connecting plate close to the intermediate plate. The end of the return spring away from the connecting plate is fixedly connected to the intermediate plate. A guiding block is fixedly connected to the top of the connecting plate, and the guiding blocks and the arc plates are arranged alternately.

[0012] A heat treatment method for the production and processing of hexagon nuts includes the following steps:

[0013] S1. Material fixing: Place the hexagon nut on the conveyor belt. Contact and extrusion occur between the cylinder and the hexagon nut. Under the mutual suction force between the two magnetic plates, the cylinder resets, and at this time, the cylinder fixes the hexagon nut.

[0014] S2. Material feeding: The motor operates to drive the rotating shaft to rotate. The rotating shaft drives the roller to rotate, causing the roller to drive the conveyor belt to rotate, thereby driving the hexagon nut into the inner cavity of the housing.

[0015] S3. Hot air circulation: The hot air blowers on both sides of the housing operate, causing hot air to enter the inner cavity through the through grooves on both sides. The hot air contacts the hexagon nuts on the conveyor belt and then is discharged through the exhaust fan at the top.

[0016] S4. The material is fed, and the hexagonal nut moves to the limiting member, so that contact and extrusion occur between the arc plate and the hexagonal nut inside the square hole. The cylinder is stressed and moves away from the hexagonal nut, causing the hexagonal nut to leave the conveyor belt and fall into the interior of the collection box.

[0017] The present invention provides a heat treatment device and method for the production and processing of hexagonal nuts. It has the following beneficial effects:

[0018] First, in the heat treatment device and method for the production and processing of hexagonal nuts, the air flow distribution in the heating space can be relatively uniform through air intake from both sides, avoiding local overheating or overcooling phenomena that may be caused by single-sided air intake. The hot air blows from both sides towards the nuts placed in the middle, enabling each part of the nuts to receive heat more evenly, effectively reducing the temperature gradient, and thus improving the quality and consistency of heat treatment.

[0019] Second, in the heat treatment device and method for the production and processing of hexagonal nuts, by setting trapezoidal blocks, when the hot air enters the inner cavity from both sides and encounters the trapezoidal blocks at the bottom, it will be forced to flow along the surface of the trapezoidal blocks. Due to the uniform shape and arrangement of the trapezoidal blocks, the hot air will be evenly split and guided, thereby forming a relatively uniform air flow distribution in the entire bottom area.

[0020] Third, in the heat treatment device and method for the production and processing of hexagonal nuts, by setting spiral plates, the spiral plates can guide the air flow to flow along a spiral path, making the discharged air flow more orderly, avoiding the situation of too fast or too slow local air flow, and thus ensuring the uniform discharge of air flow at the entire through slot. This can maintain the stability of the air flow inside the inner cavity of the housing and provide a uniform thermal environment for the nuts.

[0021] Fourth, in the heat treatment device and method for the production and processing of hexagonal nuts, by setting square holes on the conveyor belt, the hot air can flow up and down through the conveyor belt, enabling the nuts to dissipate heat better during the conveying process, avoiding overheating or uneven temperature caused by heat accumulation, helping to improve the quality and consistency of heat treatment. At the same time, the square holes increase the contact area between the nuts and the hot air, enabling the hot air to surround the nuts more fully and promoting heat exchange, thereby enhancing the effect and efficiency of heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the whole of the present invention;

[0023] Figure 2 It is a schematic structural diagram of the main body of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a cross-sectional view of the main body of the present invention;

[0025] Figure 4 Structural schematic diagram of the conveying component of the present invention;

[0026] Figure 5 Structural schematic diagram of a part of the fixing member of the present invention;

[0027] Figure 6 Structural schematic diagram of a partial cross-sectional view of the fixing member of the present invention;

[0028] Figure 7 Structural schematic diagram of the adjusting component of the present invention;

[0029] Figure 8 Structural schematic diagram of the limiting member of the present invention;

[0030] Figure 9 Structural schematic diagram of the other side view of the limiting member of the present invention;

[0031] Figure 10 Schematic diagram of the heat treatment method of the present invention.

[0032] In the figure: 1, support; 2, body; 21, housing; 22, hot air blower; 23, through hole; 24, cleaning brush; 25, inner cavity; 26, exhaust fan; 27, inclined plate; 28, trapezoidal block; 29, fixing block; 210, round rod; 211, through groove; 212, spiral plate; 213, air inlet; 3, conveying component; 31, limiting member; 311, square plate; 312, intermediate plate; 313, rotating plate; 314, connecting plate; 315, return spring; 316, guiding block; 317, arc plate; 32, adjusting component; 321, fixing plate; 322, slider; 323, bearing; 324, fixing rod; 325, positioning block; 326, compression spring; 327, chute; 33, square hole; 34, conveyor belt; 35, fixing member; 351, ring plate; 352, cylinder; 353, round hole; 354, magnetic plate; 36, rotating shaft; 37, roller; 4, motor; 5, collection box. Detailed implementation manners

[0033] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of 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.

[0034] The first embodiment is as Figures 1 to 3 shown. The present invention provides a technical solution: a heat treatment device and method for the production and processing of hexagonal nuts, including a body 2, and supports 1 fixedly installed at the bottom of the body 2. The number of the supports 1 is two, and the two supports 1 are symmetrically arranged at the bottom of the body 2;

[0035] The conveying component 3 is fixedly installed on the outside of the main body 2. The conveying component 3 penetrates through the main body 2. A motor 4 is fixedly connected to the outside of the conveying component 3. A collection box 5 is arranged at the bottom of the discharging end of the conveying component 3;

[0036] Among them, the main body 2 includes a housing 21. The housing 21 is fixedly connected to the bracket 1. A hot air blower 22 is fixedly connected to the outside of the housing 21. An exhaust fan 26 is fixedly connected to the top of the housing 21. Place the hexagon nuts on the conveying component 3. The motor 4 is powered on to work. The motor 4 drives the conveying component 3 to work. The conveying component 3 drives the hexagon nuts to move into the inner cavity 25 of the housing 21. At this time, the hot air blowers 22 on both sides of the housing 21 work, so that the hot air enters the inside of the inner cavity 25 through the through grooves 211 on both sides. The hot air contacts the hexagon nuts on the conveyor belt 34. Subsequently, the hot air is discharged through the exhaust fan 26 at the top. By introducing air from both sides, the air flow distribution in the heating space can be relatively uniform, avoiding the phenomenon of local overheating or overcooling that may be caused by single-sided air intake. The hot air blows from both sides to the nuts placed in the middle, enabling each part of the nuts to receive heat more evenly, effectively reducing the temperature gradient, thereby improving the quality and consistency of heat treatment. At the same time, the top air outlet can effectively prevent the accumulation of particles such as impurities and dust generated during the heat treatment process in the heating area, reducing the possibility of impurities adhering to the surface of the nuts, which is beneficial to ensuring the surface quality of the nuts and avoiding surface defects or performance degradation caused by impurities. An inner cavity 25 is opened inside the housing 21. An air inlet 213 is opened on one side of the housing 21 close to the hot air blower 22. A through groove 211 is opened at the top of the housing 21 close to the exhaust fan 26.

[0037] A through hole 23 is provided inside the housing 21, and a cleaning brush 24 is fixedly connected to the inner wall of the through hole 23. There are multiple cleaning brushes 24, and the multiple cleaning brushes 24 are divided into two groups. One group of cleaning brushes 24 is symmetrically arranged at the vertical two ends of the through hole 23. A fixing block 29 is fixedly connected to the inner wall of the inner cavity 25. The fixing block 29 is located at the middle of the bottom of the inner cavity 25. A trapezoidal block 28 is fixedly connected to the top of the fixing block 29. By providing the trapezoidal block 28, when hot air enters the inner cavity 25 from both sides, it will be forced to flow along the surface of the trapezoidal block 28 when it encounters the trapezoidal block 28 at the bottom. Since the shape and arrangement of the trapezoidal block are uniform, the hot air will be evenly split and guided, so as to form a relatively uniform air flow distribution in the entire bottom area. The trapezoidal block 28 is vertically arranged with the fixing block 29. The fixing block 29 is trapezoidal in shape, and the side of the fixing block 29 is parallel to the inclination direction of the inclined plate 27. The hot air enters the inside of the inner cavity 25 through the through groove 211, and then the hot air enters the space between two adjacent trapezoidal blocks 28 along the gap between the inclined plate 27 and the fixing block 29. Thus, the hot air contacts the hexagon nuts on the conveyor belt 34 at the top. The inclined entry of the hot air can make the air flow form a circulating flow in a specific direction inside the inner cavity 25, which is beneficial to evenly transfer heat to each corner, reduce the temperature stratification phenomenon, and make the nuts receive heat more evenly. At the same time, the inclined hot air forms a certain angle with the surface of the nut, making the path of the hot air flow over the nut longer, increasing the contact time and contact area between the hot air and the nut, and helping to improve the heat exchange efficiency. There are multiple trapezoidal blocks 28, and the multiple trapezoidal blocks 28 are evenly distributed on the top of the fixing block 29. Two inclined plates 27 are fixedly connected to the inner side wall of the inner cavity 25. The two inclined plates 27 are symmetrically arranged with the fixing block 29 as the center. A round rod 210 is fixedly connected to the side of the inclined plate 27 close to the trapezoidal block 28. The round rod 210 and the trapezoidal block 28 are arranged alternately. A spiral plate 212 is fixedly connected inside the through groove 211. By providing the spiral plate 212, the spiral plate 212 can guide the air flow to flow along a spiral path, making the discharged air flow more orderly, avoiding the situation of too fast or too slow local air flow, so as to ensure the uniform discharge of the air flow at the entire through groove 211. In this way, the stability of the air flow inside the inner cavity 25 of the housing 21 can be maintained, providing a uniform thermal environment for the nuts. At the same time, some impurities or dust may be generated inside the inner cavity 25. The spiral structure of the spiral plate forms a channel similar to a maze, which can, to a certain extent, prevent these impurities from flowing out with the air flow and then flowing back into the inner cavity 25 again, thus ensuring the cleanliness of the chamber and being beneficial to improving the surface quality of the nuts.

[0038] Second Embodiment. On the basis of the first embodiment, please refer to Figures 4 to 7As shown, the conveying assembly 3 includes a rotating shaft 36. A drum 37 is fixedly connected to the outer side of the rotating shaft 36. The rotating shaft 36 is fixedly connected to the output end of the motor 4. The motor 4 is externally connected to a power supply to work. When the motor 4 works, it drives the rotating shaft 36 to rotate, and the rotating shaft 36 drives the drum 37 to rotate, so that the drum 37 drives the conveyor belt 34 to rotate, thereby driving the hexagonal nuts into the interior 25 of the housing 21. A limiting member 31 is fixedly connected to the outer side of the housing 21. The limiting member 31 is located at the discharging end of the conveying assembly 3. An adjusting assembly 32 is fixedly connected to the outer side of the housing 21. The adjusting assembly 32 is located at the feeding end of the conveying assembly 3. The limiting member 31 is fixedly connected to the motor 4. A conveyor belt 34 is rotatably connected to the outer side of the drum 37. During the heat treatment process of the hexagonal nuts, a large amount of heat is generated. By providing square holes 33 on the conveyor belt 34, hot air can flow up and down on the conveyor belt, enabling the nuts to dissipate heat better during transportation, avoiding heat accumulation that may cause the nuts to overheat or have uneven temperatures, and helping to improve the quality and consistency of the heat treatment. At the same time, the square holes 33 increase the contact area between the nuts and the hot air, allowing the hot air to more fully surround the nuts and promoting heat exchange, thereby enhancing the effect and efficiency of the heat treatment. The conveyor belt 34 passes through the housing 21 through the interior 25 and the through hole 23. One side of the conveyor belt 34 passes through the housing 21 through the through hole 23. Square holes 33 are formed on the outer side of the conveyor belt 34. The number of the square holes 33 is multiple, and the multiple square holes 33 are evenly distributed on the conveyor belt 34. A fixing member 35 is fixedly connected to the outer side of the conveyor belt 34. The fixing member 35 is arranged at the interval between two adjacent square holes 33.

[0039] The fixing member 35 includes an annular plate 351 which is fixedly connected to the conveyor belt 34. There are multiple annular plates 351, and the multiple annular plates 351 are evenly distributed on the conveyor belt 34. The magnetic properties of the two magnetic plates 354 are opposite. Place the hexagon nut on the conveyor belt 34. Under the gravity of the hexagon nut, contact and extrusion occur between the cylinder 352 and the hexagon nut. The force on the cylinder 352 drives the magnetic plate 354 to move away from the hexagon nut, so that the hexagon nut passes through the cylinder 352. Subsequently, under the mutual suction force between the two magnetic plates 354, the cylinder 352 resets. At this time, the cylinder 352 is located inside the hexagon nut, and at the same time, the hexagon nut is located inside the square hole 33. When the conveyor belt 34 drives the hexagon nut to move, the side of the hexagon nut located below the square hole 33 contacts the round rod 210, and the hexagon nut rotates. As the conveyor belt 34 continues to move, the hexagon nut rotates inside the inner cavity 25, enabling each of its surfaces to have the opportunity to be evenly exposed to the hot air, avoiding local overheating or overcooling. Since the hot air enters the processing area from different directions, each part of the nut can fully absorb heat during the rotation process, thereby achieving a more uniform heating effect and improving the quality and consistency of the heat treatment. A round hole 353 is opened inside the annular plate 351. The round holes 353 are symmetrically arranged inside the annular plate 351. The inner wall of the round hole 353 is slidably connected to a magnetic plate 354. The outer side of the magnetic plate 354 is fixedly connected to a cylinder 352, and the cylinder 352 penetrates through the annular plate 351.

[0040] The third embodiment, on the basis of the first and second embodiments, please refer to Figures 8 to 10 As shown, the adjusting assembly 32 includes a fixing plate 321 which is fixedly connected to the housing 21. There are two fixing plates 321, and the two fixing plates 321 are symmetrically arranged with the rotating shaft 36 as the center. A slider 322 is slidably connected inside the fixing plate 321. A bearing 323 is fixedly connected inside the slider 322. Utilizing the elastic performance of the compression spring 326, the conveyor belt 34 is adapted to the change in tension through the expansion and contraction of the compression spring 326 itself, so that the conveyor belt 34 is in a suitable tension state, ensuring its stable operation. It can avoid the conveyor belt 34 from being too tight, resulting in excessive stretching, wear, or even breakage. At the same time, it can also prevent the conveyor belt 34 from being too loose, causing slipping, thereby protecting the conveyor belt and reducing the frequency and cost of replacing the conveyor belt. The end of the rotating shaft 36 is located inside the bearing 323. A chute 327 is opened inside the fixing plate 321. A positioning block 325 is slidably connected to the inner wall of the chute 327. One end of the positioning block 325 close to the slider 322 is fixedly connected to a fixing rod 324. The other end of the positioning block 325 away from the fixing rod 324 is fixedly connected to a compression spring 326, and the end of the compression spring 326 away from the positioning block 325 is fixedly connected to the housing 21.

[0041] The limiting member 31 includes a square plate 311 which is fixedly connected to the housing 21. There are two square plates 311. At one end of the square plate 311 away from the housing 21, an intermediate plate 312 is fixedly connected. Both ends of the intermediate plate 312 are respectively connected to the two square plates 311. A rotating plate 313 is rotatably connected to the outer side of the rotating shaft 36. The rotating plate 313 is symmetrically arranged with the drum 37 as the center. The conveyor belt 34 drives the hexagonal nut to move to the limiting member 31. By using the elastic performance of the return spring 315, the connecting plate 314 and the arc plate 317 are brought into contact with the conveyor belt 34, so that the arc plate 317 contacts and exerts extrusion on the hexagonal nut inside the square hole 33. The cylinder 352 is forced to move away from the hexagonal nut, causing the hexagonal nut to leave the conveyor belt 34. Thus, the hexagonal nut moves downward along two adjacent guide blocks 316, and the hexagonal nut falls into the inside of the collection box 5. A connecting plate 314 is fixedly connected to the opposite side of the rotating plate 313. On the side of the connecting plate 314 close to the conveyor belt 34, an arc plate 317 is fixedly connected. The arc plate 317 and the square hole 33 are in the same vertical plane. On the side of the connecting plate 314 close to the intermediate plate 312, a return spring 315 is fixedly connected. The end of the return spring 315 away from the connecting plate 314 is fixedly connected to the intermediate plate 312. A guide block 316 is fixedly connected to the top of the connecting plate 314. The guide blocks 316 and the arc plates 317 are arranged alternately.

[0042] A heat treatment method for the production and processing of hexagonal nuts includes the following steps:

[0043] S1. Material fixation: Place the hexagonal nut on the conveyor belt 34. The cylinder 352 contacts and exerts extrusion on the hexagonal nut. Under the mutual suction force between the two magnetic plates 354, the cylinder 352 resets. At this time, the cylinder 352 fixes the hexagonal nut.

[0044] S2. Material feeding: The motor 4 operates to drive the rotating shaft 36 to rotate. The rotating shaft 36 drives the drum 37 to rotate, so that the drum 37 drives the conveyor belt 34 to rotate, thereby driving the hexagonal nut into the inner cavity 25 of the housing 21.

[0045] S3. Hot air circulation: The hot air blowers 22 on both sides of the housing 21 operate, so that the hot air enters the inner cavity 25 through the through grooves 211 on both sides. The hot air contacts the hexagonal nuts on the conveyor belt 34, and then the hot air is discharged through the exhaust fan 26 at the top.

[0046] S4. Material discharging: The hexagonal nut moves to the limiting member 31, so that the arc plate 317 contacts and exerts extrusion on the hexagonal nut inside the square hole 33. The cylinder 352 is forced to move away from the hexagonal nut, causing the hexagonal nut to leave the conveyor belt 34 and fall into the inside of the collection box 5.

[0047] During use, place the hexagonal nut on the conveyor belt 34. Under the gravity of the hexagonal nut, contact and extrusion occur between the cylinder 352 and the hexagonal nut. The force on the cylinder 352 drives the magnetic plate 354 to move away from the hexagonal nut, allowing the hexagonal nut to pass through the cylinder 352. Subsequently, under the mutual suction force between the two magnetic plates 354, the cylinder 352 resets. At this time, the cylinder 352 is inside the hexagonal nut, and at the same time, the hexagonal nut is inside the square hole 33. When the conveyor belt 34 drives the hexagonal nut to move, contact occurs between the side of the hexagonal nut located below the square hole 33 and the round rod 210, causing the hexagonal nut to rotate. As the conveyor belt 34 continues to move, the hexagonal nut rotates inside the inner cavity 25.

[0048] The motor 4 is connected to an external power supply to operate. The operation of the motor 4 drives the rotation shaft 36 to rotate, and the rotation shaft 36 drives the roller 37 to rotate, causing the roller 37 to drive the conveyor belt 34 to rotate, thereby driving the hexagonal nut into the inner cavity 25 of the housing 21. At this time, the hot air blowers 22 on both sides of the housing 21 operate, allowing hot air to enter the inner cavity 25 through the through grooves 211 on both sides. The hot air contacts the hexagonal nuts on the conveyor belt 34, and then the hot air is discharged through the exhaust fan 26 at the top.

[0049] The conveyor belt 34 drives the hexagonal nut to move to the limiting member 31. Utilizing the elastic performance of the return spring 315, the connecting plate 314 and the arc plate 317 contact the conveyor belt 34, causing the arc plate 317 to contact and extrude the hexagonal nut inside the square hole 33. The force on the cylinder 352 causes it to move away from the hexagonal nut, allowing the hexagonal nut to leave the conveyor belt 34. Thus, the hexagonal nut moves downward along two adjacent guide blocks 316, causing the hexagonal nut to fall into the collection box 5.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment equipment for the production and processing of hexagonal nuts, characterized in that: include: A body (2), and a bracket (1) fixedly mounted on the bottom of the body (2), wherein there are two brackets (1), and the two brackets (1) are symmetrically arranged on the bottom of the body (2); A conveying assembly (3), the conveying assembly (3) being fixedly mounted on the outside of the main body (2), the conveying assembly (3) passing through the main body (2), the outside of the conveying assembly (3) being fixedly connected to a motor (4), and a collecting frame (5) being provided at the bottom of the discharge end of the conveying assembly (3); The body (2) comprises a shell (21), the shell (21) is fixedly connected to the bracket (1), a hot air blower (22) is fixedly connected to the outside of the shell (21), an exhaust fan (26) is fixedly connected to the top of the shell (21), an inner cavity (25) is provided inside the shell (21), an air inlet (213) is provided on a side of the shell (21) close to the hot air blower (22), and a through slot (211) is provided on the top of the shell (21) close to the exhaust fan (26).

2. The heat treatment equipment for producing and processing hexagonal nuts according to claim 1, characterized in that: A through hole (23) is provided inside the shell (21), and a cleaning brush (24) is fixedly connected to the inner wall of the through hole (23). There are a plurality of cleaning brushes (24), and the plurality of cleaning brushes (24) are divided into two groups. The cleaning brushes (24) in one group are symmetrically arranged at two vertical ends of the through hole (23). A fixing block (29) is fixedly connected to the inner wall of the inner cavity (25), and the fixing block (29) is located in the middle of the bottom of the inner cavity (25).

3. The heat treatment equipment for producing and processing hexagonal nuts according to claim 2, characterized in that: A trapezoidal block (28) is fixedly connected to the top of the fixed block (29). The trapezoidal block (28) is arranged vertically to the fixed block (29). There are a plurality of trapezoidal blocks (28), and the plurality of trapezoidal blocks (28) are evenly distributed on the top of the fixed block (29). An inclined plate (27) is fixedly connected to the inner side wall of the inner cavity (25).

4. The heat treatment equipment for producing and processing hexagonal nuts according to claim 3, characterized in that: There are two inclined plates (27), and the two inclined plates (27) are symmetrically arranged with the fixed block (29) as the center. A round rod (210) is fixedly connected to one side of the inclined plate (27) close to the trapezoidal block (28). The round rod (210) and the trapezoidal block (28) are alternately arranged, and a spiral plate (212) is fixedly connected to the inside of the through groove (211).

5. The heat treatment equipment for producing and processing hexagonal nuts according to claim 4, characterized in that: The conveying assembly (3) comprises a rotating shaft (36), a roller (37) is fixedly connected to the outer side of the rotating shaft (36), the rotating shaft (36) is fixedly connected to the output end of the motor (4), a limiting member (31) is fixedly connected to the outer side of the shell (21), the limiting member (31) is located at the discharge end of the conveying assembly (3), an adjusting member (32) is fixedly connected to the outer side of the shell (21), the adjusting member (32) is located at the feed end of the conveying assembly (3), and the limiting member (31) is fixedly connected to the motor (4).

6. The heat treatment equipment for producing and processing hexagonal nuts according to claim 5, characterized in that: The outer side of the roller (37) is rotatably connected to a conveyor belt (34), one side of the conveyor belt (34) passes through the shell (21) through a through hole (23), the outer side of the conveyor belt (34) is provided with square holes (33), there are a plurality of square holes (33), and the plurality of square holes (33) are evenly distributed on the conveyor belt (34), and the outer side of the conveyor belt (34) is fixedly connected to a fixing member (35), and the fixing member (35) is arranged at the interval between two adjacent square holes (33).

7. The heat treatment equipment for producing and processing hexagonal nuts according to claim 6, characterized in that: The adjustment assembly (32) comprises a fixed plate (321), wherein the fixed plate (321) is fixedly connected to the housing (21). There are two fixed plates (321), and the two fixed plates (321) are symmetrically arranged with the rotating shaft (36) as the center. A slider (322) is slidably connected to the interior of the fixed plate (321), and a bearing (323) is fixedly connected to the interior of the slider (322). The end of the rotating shaft (36) is located inside the bearing (323). A sliding groove (327) is provided inside the fixed plate (321), and a positioning block (325) is slidably connected to the inner wall of the sliding groove (327). An end of the positioning block (325) close to the slider (322) is fixedly connected to a fixing rod (324), and an end of the positioning block (325) away from the fixing rod (324) is fixedly connected to a compression spring (326). An end of the compression spring (326) away from the positioning block (325) is fixedly connected to the housing (21).

8. The heat treatment equipment for producing and processing hexagonal nuts according to claim 7, characterized in that: The limiting member (31) comprises a square plate (311), the square plate (311) being fixedly connected to the housing (21), the number of the square plates (311) being two, one end of the square plate (311) away from the housing (21) being fixedly connected to an intermediate plate (312), the two ends of the intermediate plate (312) being distributedly connected to the two square plates (311), the outer side of the rotating shaft (36) being rotatably connected to a rotating plate (313), the rotating plate (313) being symmetrically arranged with the roller (37) as the center, and the opposite side of the rotating plate (313) being fixedly connected to a connecting plate (313). 14), a side of the connecting plate (314) close to the conveyor belt (34) is fixedly connected to an arc plate (317), the arc plate (317) and the square hole (33) are located on the same vertical plane, a side of the connecting plate (314) close to the middle plate (312) is fixedly connected to a return spring (315), one end of the return spring (315) away from the connecting plate (314) is fixedly connected to the middle plate (312), a top of the connecting plate (314) is fixedly connected to a guide block (316), and the guide block (316) and the arc plate (317) are alternately arranged.

9. The heat treatment equipment for producing and processing hexagonal nuts according to claim 8, characterized in that: The fixing member (35) comprises a ring plate (351), wherein the ring plate (351) is fixedly connected to the conveyor belt (34), and there are a plurality of ring plates (351), wherein the plurality of ring plates (351) are evenly distributed on the conveyor belt (34), and a circular hole (353) is opened inside the ring plate (351), wherein the circular hole (353) is symmetrically arranged inside the ring plate (351), and a magnetic plate (354) is slidably connected to the inner wall of the circular hole (353), and a cylinder (352) is fixedly connected to the outer side of the magnetic plate (354), and the cylinder (352) passes through the ring plate (351).

10. A heat treatment method for producing and processing hexagonal nuts according to any one of claims 1 to 9, characterized in that: It includes the following steps: S1, the material is fixed, the hexagonal nut is placed on the conveyor belt (34), the cylinder (352) and the hexagonal nut are in contact and squeezed, and under the mutual attraction between the two magnetic plates (354), the cylinder (352) is reset, and at this time, the cylinder (352) fixes the hexagonal nut; S2, material is fed, the motor (4) works to drive the rotating shaft (36) to rotate, the rotating shaft (36) drives the roller (37) to rotate, so that the roller (37) drives the conveyor belt (34) to rotate, thereby driving the hexagonal nut to enter the inner cavity (25) of the shell (21); S3, hot air circulation, the hot air blowers (22) on both sides of the housing (21) operate, so that the hot air enters the inner cavity (25) through the through slots (211) on both sides, the hot air contacts the hexagonal nuts on the conveyor belt (34), and then the hot air is discharged through the exhaust fan (26) on the top; S4, the material is unloaded, and the hexagonal nut moves to the limiter (31), so that the arc plate (317) and the hexagonal nut inside the square hole (33) contact and squeeze each other, and the cylinder (352) is forced to move in a direction away from the hexagonal nut, so that the hexagonal nut leaves the conveyor belt (34), and the hexagonal nut falls into the collection frame (5).

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