A continuous heat treatment device for alloy steel fasteners and its usage method

Abstract

This invention relates to the field of continuous heat treatment of fasteners. The invention discloses a continuous heat treatment device for alloy steel fasteners and its method of use. The problem this invention aims to solve is that while the device can dry piles of cooled bolts and fasteners by blowing air, the airflow cannot completely reach the surface of each bolt and fastener due to their accumulation, thus making it difficult to guarantee the drying effect of the device. This invention consists of a parts heating mechanism and a parts drying mechanism. The continuous heat treatment device and its method for using alloy steel fasteners utilize a first motor to drive a worm gear to rotate. Under the action of the worm gear, a disc rotates counterclockwise. At this time, the bolts and alloy steel fasteners on the upper side of the worm gear fall steadily along the feeding channel and are relatively evenly laid on the hollow disc. The bolts and alloy steel fasteners located between the hollow disc and the worm gear are then heated by a heating barrel.

Description

Technical Field

[0001] This invention relates to the field of continuous heat treatment of fasteners, specifically to a continuous heat treatment apparatus for alloy steel fasteners and its method of use. Background Technology

[0002] Fasteners are a widely used class of basic mechanical parts used for fastening connections. Fasteners include bolts, studs, screws, nuts, washers, etc. Heat treatment is a process in which the internal structure of steel is altered by heating and cooling in its solid state to obtain desired properties. It is a crucial step in the manufacturing of machine parts and tools, playing a vital role in maximizing the potential of metallic materials, improving the performance of parts, enhancing product quality, and extending service life.

[0003] Existing devices require the bolts and fasteners to be transported to a water tank for cooling after continuous heat treatment. However, water droplets adhere to the threads on the surface of the cooled bolts and fasteners. Existing devices use air blowing to dry the piled bolts and fasteners after cooling, but because the bolts and fasteners are piled together, the airflow cannot completely flow through the surface of each bolt and fastener, thus making it difficult to ensure the drying effect of the device. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous heat treatment device for alloy steel fasteners and its method of use, to solve the problem in the background art where the device blows air to dry piles of cooled bolts and fasteners, but because the bolts and fasteners are piled together, the airflow cannot completely flow over the surface of each bolt and fastener, thus making it difficult to ensure the drying effect of the device. To achieve the above objective, this invention provides the following technical solution: a continuous heat treatment device for alloy steel fasteners, including a water tank, a parts conveyor is provided on the bottom surface of the inner wall of the water tank, a groove is formed on the surface of the drive belt of the parts conveyor, a drive roller rolls inside the groove, and the drive roller is fixed to the bottom surface of the inner wall of the water tank;

[0005] A parts heating mechanism is fixedly connected to the right side of the bottom surface of the inner wall of the water tank, and a parts drying mechanism is fixedly connected to the upper left side of the bottom surface of the inner wall of the water tank. A collection conveyor belt is attached to the side of the parts drying mechanism and the collection conveyor belt is fixed to the water tank.

[0006] Preferably, the part heating mechanism includes a heating barrel, which is fixed to the bottom surface of the inner wall of the water tank. An open annular groove is provided on the inner wall of the heating barrel. A worm gear is rotatably connected inside the open annular groove. A worm is engaged on the side of the worm gear. A first motor is fixedly connected to one end of the worm, and the first motor is fixed on the outside of the heating barrel.

[0007] The inner wall of the worm gear is provided with a feeding groove, and a disc is fixedly connected to the bottom surface of the worm gear. The bottom surface of the disc is arc-shaped and fixedly connected with multiple active levers.

[0008] A hollow disc is fixedly connected to the inner wall of the heating barrel. Multiple passive levers are fixedly connected to the top surface of the hollow disc in an arc shape at equal intervals. A guide plate is fixedly connected to the lower side of the inner wall of the heating barrel, and the bottom surface of the guide plate overlaps with the surface of the transmission belt of the parts conveyor.

[0009] Preferably, the parts drying mechanism includes two vertical plates, both of which are fixed to the bottom surface of the inner wall of the water tank, and an inclined plate is fixedly connected between the two vertical plates, with one side of the inclined plate overlapping the collection conveyor belt.

[0010] A second motor is fixedly connected to the front vertical plate. One end of the rotating shaft of the second motor passes through the front vertical plate and is fixedly connected to an air intake fan. A drive gear is fixedly sleeved on the side of the air intake fan. A driven gear meshes with the side of the drive gear. The driven gear is rotatably connected to the front vertical plate. An inner ring gear meshes with the side of the driven gear. A sleeve is fixedly sleeved on the outside of the inner ring gear, and the sleeve is on the left side of the heating barrel.

[0011] Preferably, the sleeve has twelve fan-shaped air guide grooves evenly spaced in a ring on its side. Spring telescopic rods are fixedly connected to both the front and rear sides of the inner wall of each fan-shaped air guide groove. An arc-shaped rod is fixedly connected between two spring telescopic rods in the same fan-shaped air guide groove, and the arc-shaped rod slides in the fan-shaped air guide groove.

[0012] A magnet is fixedly connected to the arc-shaped rod. An isolation frame is fitted around the outside of the magnet. A connecting pipe is fixedly connected to the isolation frame. The connecting pipe is fitted around the outside of the air intake fan. Limiting rings are fixedly connected to both ends of the connecting pipe, and the side of the limiting rings abuts against the end of the spring telescopic rod away from the fan-shaped air guide groove.

[0013] Preferably, the outer side of the limiting ring tube is provided with three grooves, the inner wall of the grooves is fixedly connected with a protrusion, and the side of the limiting ring tube is provided with an arc groove.

[0014] A baffle plate is fixedly connected inside the front limiting ring tube. The baffle plate is movably sleeved on the rotating shaft of the air intake fan, and the baffle plate is fixedly connected to the back of the front vertical plate.

[0015] Preferably, the rear end of the intake fan rotating shaft is rotatably connected to the front end of the rear vertical plate, and a heating wire is fixedly connected to the rear vertical plate.

[0016] Preferably, the heating wire is spiral-shaped.

[0017] Preferably, the method of using the continuous heat treatment device for alloy steel fasteners includes the following steps:

[0018] S1: When the device heats the bolt alloy steel fasteners, it first continuously feeds the bolt alloy steel fasteners into the heating barrel. At this time, the first motor drives the worm gear to rotate, and under the action of the worm gear, the disc rotates counterclockwise. At this time, the bolt alloy steel fasteners on the upper side of the worm gear fall steadily along the feeding groove and are evenly laid on the hollow disc. The heating barrel heats the bolt alloy steel fasteners located between the hollow disc and the worm gear, ensuring that the device heats the bolt alloy steel fasteners on the hollow disc more evenly.

[0019] Furthermore, the slow counterclockwise rotation of the worm gear drives the active lever below it to rotate clockwise. This, in conjunction with the passive lever, causes the heated bolts and alloy steel fasteners on the hollow disc to gather towards the inside of the hollow disc and fall onto the parts conveyor, where they are immersed in the water in the tank. This ensures that each bolt and alloy steel fastener on the hollow disc is heated evenly during one rotation of the active lever, thus guaranteeing the quality of heating of the bolts and alloy steel fasteners by the heating tank.

[0020] Then the parts conveyor transports the water-soaked bolts and alloy steel fasteners to the left. Because the parts conveyor is set at an angle, the bolts and alloy steel fasteners on the parts conveyor will gradually separate from the water in the water tank.

[0021] S2: When the bolt alloy steel fastener is conveyed to the lower side of the sleeve, the second motor rotates counterclockwise to draw the heat emitted from the heating wire into the connecting pipe and discharge it outward along the isolation frame to form an airflow channel. When the second motor rotates counterclockwise, the driven gear is driven to rotate clockwise through the active gear, which causes the inner ring gear to rotate clockwise, causing the spring telescopic rod in the fan-shaped air guide groove on the sleeve to slide on the outside of the limiting ring tube. When the magnet located directly below the suction fan attracts the bolt alloy steel fastener on the part conveyor to the surface of the arc rod, and when one end of the spring telescopic rod touches the groove, the spring telescopic rod extends and causes the magnet to move in the fan-shaped air guide groove, causing the arc rod to separate from the inner wall of the fan-shaped air guide groove, and causing one end of the bolt alloy steel fastener to penetrate into the interior of the fan-shaped air guide groove. The spring telescopic rod slides on the raised surface to generate vibration, shaking off the bolt alloy steel fastener that is not firmly attracted to the surface of the arc rod.

[0022] At this time, because the head of the bolt alloy steel fastener has a large diameter, it will not enter the fan-shaped air guide groove, thus avoiding the bolt alloy steel fasteners from sticking together. This ensures that the bolt alloy steel fasteners are vertically arranged inside the fan-shaped air guide groove, causing the hot air in the intake connecting pipe to be discharged along the gap between the arc rod and the fan-shaped air guide groove. This allows the surface of the bolt alloy steel fasteners vertically arranged in the fan-shaped air guide groove to be dried by blowing air, ensuring that the airflow is better blown on the surface of the bolt alloy steel fasteners and drying the surface of the bolt alloy steel fasteners.

[0023] S3: Since there are three grooves, the bolt alloy steel fasteners will be dried by gas three times, ensuring the quality of drying of the bolt alloy steel fasteners by the device. Finally, when one end of the spring telescopic rod slides into the arc groove, the head of the bolt alloy steel fastener cannot enter the inside of the fan-shaped air guide groove, causing the arc rod on the magnet to separate from the bolt alloy steel fastener. This allows the dried bolt alloy steel fastener to detach from the inside of the fan-shaped air guide groove and fall onto the collection conveyor belt. The collection conveyor belt then carries the fasteners backward, making it convenient for users to collect the heat-treated and dried bolt alloy steel fasteners.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] In this invention, a first motor drives a worm gear to rotate, which in turn drives a disc to rotate counterclockwise. At this time, the bolt alloy steel fasteners on the upper side of the worm gear fall steadily along the feeding channel and are evenly laid on the hollow disc. The bolt alloy steel fasteners located between the hollow disc and the worm gear are heated by a heating barrel to ensure that the device heats the bolt alloy steel fasteners on the hollow disc more evenly.

[0026] In this invention, the slow counterclockwise rotation of the worm gear drives the active lever on its lower side to rotate clockwise. This, in conjunction with the passive lever, causes the heated bolts and alloy steel fasteners on the hollow disc to gather towards the inside of the hollow disc and fall onto the parts conveyor, where they are immersed in the water in the tank. This ensures that each bolt and alloy steel fastener on the hollow disc is heated evenly during one rotation of the active lever, thus guaranteeing the quality of heating of the bolts and alloy steel fasteners by the heating tank.

[0027] In this invention, the bolt alloy steel fasteners on the parts conveyor are attracted to the surface of the arc-shaped rod by the magnet directly below the suction fan. When one end of the spring telescopic rod touches the groove, the spring telescopic rod extends and moves the magnet in the fan-shaped air guide groove, causing the arc-shaped rod to separate from the inner wall of the fan-shaped air guide groove. This causes one end of the bolt alloy steel fastener to penetrate into the interior of the fan-shaped air guide groove. Furthermore, the spring telescopic rod slides on the raised surface and generates vibration, shaking off the bolt alloy steel fasteners that are not firmly attached to the surface of the arc-shaped rod.

[0028] In this invention, because the head of the bolt alloy steel fastener has a large diameter, it will not enter the fan-shaped air guide groove, thus preventing the bolt alloy steel fasteners from sticking together. This ensures that the bolt alloy steel fasteners are vertically arranged inside the fan-shaped air guide groove, causing the hot air drawn into the connecting pipe to be discharged along the gap between the arc-shaped rod and the fan-shaped air guide groove. This allows for air blowing and drying of the surface of the bolt alloy steel fasteners vertically arranged in the fan-shaped air guide groove, ensuring that the airflow is better blown onto the surface of the bolt alloy steel fasteners and drying the surface of the bolt alloy steel fasteners. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a three-dimensional cross-sectional view of the water tank and other structures of the present invention;

[0031] Figure 3 This is one of the three-dimensional structural cross-sectional views of the heating barrel and other structures of the present invention;

[0032] Figure 4 This is a second three-dimensional structural cross-sectional view of the heating barrel and other structures of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the vertical plate and inclined plate of the present invention;

[0034] Figure 6 This is a three-dimensional cross-sectional view of the sleeve fixing structure of the present invention;

[0035] Figure 7 This is a three-dimensional structural diagram of the spring telescopic rod and the arc-shaped rod of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the isolation frame and protrusions of the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of the limiting ring tube and connecting tube of the present invention.

[0038] In the diagram: 1. Water tank; 2. Parts conveyor; 3. Recessed groove; 4. Drive roller; 5. Parts heating mechanism; 51. Heating barrel; 52. Open annular groove; 53. Worm gear; 54. Worm; 55. First motor; 56. Discharge chute; 57. Disc; 58. Active lever; 59. Hollow disc; 510. Passive lever; 511. Guide plate; 6. Parts drying mechanism; 61. Vertical plate; 62. Inclined plate; 63. 64. Motor; 65. Suction fan; 66. Drive gear; 67. Driven gear; 68. Inner ring gear; 69. Sleeve; 60. Fan-shaped air guide groove; 610. Spring telescopic rod; 611. Arc rod; 612. Magnet; 613. Isolation frame; 614. Connecting pipe; 615. Limiting ring pipe; 616. Groove; 617. Protrusion; 618. Arc groove; 619. Barrier plate; 620. Heating wire; 7. Collection transmission belt. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figures 1 to 9 The present invention provides a technical solution: a continuous heat treatment device for alloy steel fasteners, including a water tank 1, a parts conveyor 2 is provided on the bottom surface of the inner wall of the water tank 1, a recessed groove 3 is opened on the surface of the transmission belt of the parts conveyor 2, a transmission roller 4 rolls inside the recessed groove 3, and the transmission roller 4 is fixed on the bottom surface of the inner wall of the water tank 1.

[0041] A parts heating mechanism 5 is fixedly connected to the right side of the bottom surface of the inner wall of water tank 1, and a parts drying mechanism 6 is fixedly connected to the upper left side of the bottom surface of the inner wall of water tank 1. A collection conveyor belt 7 is attached to the side of the parts drying mechanism 6 and is fixed to the water tank 1.

[0042] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the part heating mechanism 5 includes a heating barrel 51, which is fixed to the bottom surface of the inner wall of the water tank 1. An open annular groove 52 is provided on the inner wall of the heating barrel 51. A worm gear 53 is rotatably connected inside the open annular groove 52. A worm 54 is meshed on the side of the worm gear 53. A first motor 55 is fixedly connected to one end of the worm 54, and the first motor 55 is fixed on the outside of the heating barrel 51.

[0043] The inner wall of the worm gear 53 is provided with a feeding groove 56, and a disc 57 is fixedly connected to the bottom surface of the worm gear 53. The bottom surface of the disc 57 is arc-shaped and fixedly connected with multiple active levers 58.

[0044] A hollow disc 59 is fixedly connected to the inner wall of the heating barrel 51. Multiple passive levers 510 are fixedly connected in an arc shape at equal intervals on the top surface of the hollow disc 59. A guide plate 511 is fixedly connected to the lower side of the inner wall of the heating barrel 51, and the bottom surface of the guide plate 511 overlaps with the surface of the transmission belt of the parts conveyor 2. Multiple active levers 58 pass through the gaps between the multiple passive levers 510 as they rotate with the disc 57, assisting the multiple active levers 58 in converging the bolt alloy steel fasteners towards the central axis of the hollow disc 59.

[0045] In this embodiment, as Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the parts drying mechanism 6 includes two vertical plates 61, both of which are fixed to the bottom surface of the inner wall of the water tank 1. An inclined plate 62 is fixedly connected between the two vertical plates 61, and one side of the inclined plate 62 overlaps the collection conveyor belt 7.

[0046] A second motor 63 is fixedly connected to the front vertical plate 61. One end of the rotating shaft of the second motor 63 passes through the front vertical plate 61 and is fixedly connected to an air intake fan 64. A drive gear 65 is fixedly sleeved on the side of the air intake fan 64. A driven gear 66 meshes with the side of the drive gear 65. The driven gear 66 is rotatably connected to the front vertical plate 61. An inner ring gear 67 meshes with the side of the driven gear 66. A sleeve 68 is fixedly sleeved on the outside of the inner ring gear 67, and the sleeve 68 is on the left side of the heating barrel 51. The sleeve 68 is outside the air intake fan 64.

[0047] In this embodiment, as Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the sleeve 68 has twelve fan-shaped air guide grooves 69 arranged in a ring at equal intervals on its side. Spring telescopic rods 610 are fixedly connected to both the front and rear sides of the inner wall of the fan-shaped air guide grooves 69. An arc-shaped rod 611 is fixedly connected between two spring telescopic rods 610 in the same fan-shaped air guide groove 69, and the arc-shaped rod 611 slides in the fan-shaped air guide groove 69.

[0048] A magnet 612 is fixedly connected to the arc-shaped rod 611. An isolation frame 613 is sleeved on the outside of the magnet 612. A connecting pipe 614 is fixedly connected to the isolation frame 613. The connecting pipe 614 is sleeved on the outside of the air intake fan 64. Limiting ring pipes 615 are fixedly connected to both ends of the connecting pipe 614. The side of the limiting ring pipe 615 abuts against the end of the spring telescopic rod 610 away from the fan-shaped air guide groove 69.

[0049] In this embodiment, as Figure 8 , Figure 9 As shown, three grooves 616 are provided on the outer side of the limiting ring tube 615, and a protrusion 617 is fixedly connected to the inner wall of the groove 616. An arc groove 618 is provided on the side of the limiting ring tube 615.

[0050] A baffle plate 619 is fixedly connected inside the front limiting ring tube 615. The baffle plate 619 is movably sleeved on the rotating shaft of the intake fan 64, and the baffle plate 619 is fixedly connected to the back of the front vertical plate 61.

[0051] In this embodiment, as Figure 9 As shown, the rear end of the rotating shaft of the intake fan 64 is rotatably connected to the front of the rear vertical plate 61, and a heating wire 620 is fixedly connected to the rear vertical plate 61.

[0052] In this embodiment, as Figure 9 As shown, the heating wire 620 is spiral-shaped.

[0053] The method of use and advantages of the present invention: The working process of the continuous heat treatment device for alloy steel fasteners is as follows:

[0054] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown:

[0055] S1: When the device heats the bolt alloy steel fasteners, it first continuously feeds the bolt alloy steel fasteners into the heating barrel 51. At this time, the first motor 55 drives the worm gear 53 to rotate. Under the action of the worm gear 53, the disc 57 rotates counterclockwise. At this time, the bolt alloy steel fasteners on the upper side of the worm gear 53 fall steadily along the feeding groove 56 and are evenly laid on the hollow disc 59. The heating barrel 51 heats the bolt alloy steel fasteners located between the hollow disc 59 and the worm gear 53, ensuring that the device heats the bolt alloy steel fasteners on the hollow disc 59 more evenly.

[0056] Furthermore, the slow counterclockwise rotation of the worm gear 53 drives the active lever 58 below it to rotate clockwise. In conjunction with the passive lever 510, the heated bolt alloy steel fasteners on the hollow disc 59 are moved to gather towards the inside of the hollow disc 59 and fall onto the parts conveyor 2, where they are immersed in the water in the water tank 1. This ensures that each bolt alloy steel fastener on the hollow disc 59 is heated evenly during one rotation of the active lever 58, thus ensuring the quality of heating of the bolt alloy steel fasteners by the heating tank 51.

[0057] Then the parts conveyor 2 transports the water-soaked bolts and alloy steel fasteners to the left. Since the parts conveyor 2 is set at an angle, the bolts and alloy steel fasteners on the parts conveyor 2 will gradually separate from the water in the water tank 1.

[0058] S2: After the bolt alloy steel fastener is delivered to the lower side of the sleeve 68, the second motor 63 rotates counterclockwise to draw the heat emitted from the heating wire 620 into the connecting pipe 614 and discharge it outward along the isolation frame 613, forming an airflow channel. When the second motor 63 rotates counterclockwise, the driving gear 65 drives the driven gear 66 to rotate clockwise, causing the inner ring gear 67 to drive the sleeve 68 to rotate clockwise. This causes the spring telescopic rod 610 in the fan-shaped air guide groove 69 on the sleeve 68 to slide on the outside of the limiting ring pipe 615. When the magnet 61, located directly below the suction fan 64... 2. The bolt alloy steel fastener on the parts conveyor 2 is attracted to the surface of the arc rod 611. When one end of the spring telescopic rod 610 touches the groove 616, the spring telescopic rod 610 extends and drives the magnet 612 to move in the fan-shaped air guide groove 69, causing the arc rod 611 to separate from the inner wall of the fan-shaped air guide groove 69, and driving one end of the bolt alloy steel fastener to penetrate into the interior of the fan-shaped air guide groove 69. The spring telescopic rod 610 slides on the surface of the protrusion 617 to generate vibration, shaking off the bolt alloy steel fastener that is not firmly attracted to the surface of the arc rod 611.

[0059] At this time, because the head of the bolt alloy steel fastener has a large diameter, it will not enter the fan-shaped air guide groove 69, thus avoiding the bolt alloy steel fasteners from sticking together. This ensures that the bolt alloy steel fasteners are vertically arranged inside the fan-shaped air guide groove 69, causing the hot air drawn into the connecting pipe 614 to be discharged through the gap between the arc rod 611 and the fan-shaped air guide groove 69. This allows the surface of the bolt alloy steel fasteners vertically arranged in the fan-shaped air guide groove 69 to be dried by blowing air, ensuring that the airflow is better blown onto the surface of the bolt alloy steel fasteners and drying the surface of the bolt alloy steel fasteners.

[0060] S3: Since there are three grooves 616, the bolt alloy steel fastener will be dried by gas three times to ensure the quality of drying of the bolt alloy steel fastener by the device. Finally, when one end of the spring telescopic rod 610 slides into the arc groove 618, the head of the bolt alloy steel fastener cannot enter the inside of the fan-shaped air guide groove 69, causing the arc rod 611 on the magnet 612 to separate from the bolt alloy steel fastener. This allows the dried bolt alloy steel fastener to detach from the inside of the fan-shaped air guide groove 69 and fall onto the collection conveyor belt 7. The collection conveyor belt 7 then carries the fastener backward to facilitate the user's collection of the heat-treated and dried bolt alloy steel fastener.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous heat treatment apparatus for alloy steel fasteners, comprising a water tank (1), characterized in that: A parts conveyor (2) is provided on the bottom surface of the inner wall of the water tank (1). A groove (3) is provided on the surface of the transmission belt of the parts conveyor (2). A transmission roller (4) rolls inside the groove (3). The transmission roller (4) is fixed on the bottom surface of the inner wall of the water tank (1). A parts heating mechanism (5) is fixedly connected to the right side of the bottom surface of the inner wall of the water tank (1), and a parts drying mechanism (6) is fixedly connected to the upper left side of the bottom surface of the inner wall of the water tank (1). A collection conveyor belt (7) is attached to the side of the parts drying mechanism (6), and the collection conveyor belt (7) is fixed to the water tank (1). The parts drying mechanism (6) includes two vertical plates (61), both of which are fixed to the bottom surface of the inner wall of the water tank (1). An inclined plate (62) is fixedly connected between the two vertical plates (61), and one side of the inclined plate (62) overlaps the collection conveyor belt (7). A second motor (63) is fixedly connected to the front vertical plate (61). One end of the rotating shaft of the second motor (63) passes through the front vertical plate (61) and is fixedly connected to an air intake fan (64). A drive gear (65) is fixedly sleeved on the side of the air intake fan (64). A driven gear (66) meshes with the side of the drive gear (65). The driven gear (66) is rotatably connected to the front vertical plate (61). An inner ring gear (67) meshes with the side of the driven gear (66). A sleeve (68) is fixedly sleeved on the outside of the inner ring gear (67), and the sleeve (68) is on the left side of the heating barrel (51). The sleeve (68) has twelve fan-shaped air guide grooves (69) evenly spaced on its side. Spring telescopic rods (610) are fixedly connected to both the front and rear sides of the inner wall of the fan-shaped air guide grooves (69). An arc-shaped rod (611) is fixedly connected between two spring telescopic rods (610) in the same fan-shaped air guide groove (69), and the arc-shaped rod (611) slides in the fan-shaped air guide groove (69). A magnet (612) is fixedly connected to the arc-shaped rod (611). An isolation frame (613) is sleeved on the outside of the magnet (612). A connecting pipe (614) is fixedly connected to the isolation frame (613). The connecting pipe (614) is sleeved on the outside of the air intake fan (64). Both ends of the connecting pipe (614) are fixedly connected to limit ring pipes (615). The side of the limit ring pipe (615) abuts against the end of the spring telescopic rod (610) away from the fan-shaped air guide groove (69). The outer side of the limiting ring tube (615) is provided with three grooves (616), and a protrusion (617) is fixedly connected to the inner wall of the groove (616). The side of the limiting ring tube (615) is provided with an arc groove (618). A baffle plate (619) is fixedly connected inside the front limiting ring tube (615). The baffle plate (619) is movably sleeved on the rotating shaft of the air intake fan (64), and the baffle plate (619) is fixedly connected to the back of the front vertical plate (61).

2. The continuous heat treatment apparatus for alloy steel fasteners according to claim 1, characterized in that: The heating mechanism (5) for the parts includes a heating barrel (51), which is fixed on the bottom surface of the inner wall of the water tank (1). An open annular groove (52) is provided on the inner wall of the heating barrel (51). A worm gear (53) is rotatably connected inside the open annular groove (52). A worm (54) is meshed on the side of the worm gear (53). A first motor (55) is fixedly connected to one end of the worm (54), and the first motor (55) is fixed on the outside of the heating barrel (51). The inner wall of the worm gear (53) is provided with a feeding groove (56), and a disc (57) is fixedly connected to the bottom surface of the worm gear (53). The bottom surface of the disc (57) is arc-shaped and fixedly connected with multiple active levers (58). A hollow disc (59) is fixedly connected to the inner wall of the heating barrel (51). Multiple passive levers (510) are fixedly connected to the top surface of the hollow disc (59) in an arc shape at equal intervals. A guide plate (511) is fixedly connected to the lower side of the inner wall of the heating barrel (51), and the bottom surface of the guide plate (511) overlaps with the surface of the transmission belt of the parts conveyor (2).

3. The continuous heat treatment apparatus for alloy steel fasteners according to claim 2, characterized in that: The rear end of the rotating shaft of the air intake fan (64) is rotatably connected to the front of the rear vertical plate (61), and a heating wire (620) is fixedly connected to the rear vertical plate (61).

4. The continuous heat treatment apparatus for alloy steel fasteners according to claim 3, characterized in that: The heating wire (620) is spiral-shaped.

5. The method of using the continuous heat treatment device for alloy steel fasteners according to claim 4, characterized in that, Includes the following steps: S1: When the device heats the bolt alloy steel fasteners, it first continuously feeds the bolt alloy steel fasteners into the heating barrel (51). At this time, the first motor (55) drives the worm gear (53) to rotate. Under the action of the worm gear (53), the disc (57) rotates counterclockwise. At this time, the bolt alloy steel fasteners on the upper side of the worm gear (53) fall steadily along the feeding groove (56) and are evenly laid on the hollow disc (59). The heating barrel (51) heats the bolt alloy steel fasteners located between the hollow disc (59) and the worm gear (53) to ensure that the device heats the bolt alloy steel fasteners on the hollow disc (59) more evenly. Furthermore, as the worm gear (53) slowly rotates counterclockwise, it drives the active lever (58) on its lower side to rotate clockwise. In conjunction with the passive lever (510), the heated bolt alloy steel fasteners on the hollow disc (59) are moved to gather towards the inside of the hollow disc (59) and fall onto the parts conveyor (2), and are immersed in the water in the water tank (1). This ensures that each bolt alloy steel fastener on the hollow disc (59) is heated evenly during the rotation of the active lever (58) once, thus ensuring the quality of the heating of the bolt alloy steel fasteners by the heating barrel (51). Then the parts conveyor (2) transports the water-soaked bolt alloy steel fasteners to the left. Since the parts conveyor (2) is set at an angle, the bolt alloy steel fasteners on the parts conveyor (2) will gradually separate from the water in the water tank (1). S2: After the bolt alloy steel fastener is delivered to the lower side of the sleeve (68), the second motor (63) rotates counterclockwise to draw the heat emitted from the heating wire (620) into the connecting pipe (614) and discharge it outward along the isolation frame (613) to form an airflow channel. When the second motor (63) rotates counterclockwise, the driven gear (66) is driven to rotate clockwise through the driving gear (65), causing the inner ring gear (67) to drive the sleeve (68) to rotate clockwise, causing the spring telescopic rod (610) in the fan-shaped air guide groove (69) on the sleeve (68) to slide on the outside of the limiting ring pipe (615). When the magnet located directly below the suction fan (64) ( 612) The bolt alloy steel fastener on the parts conveyor (2) is adsorbed onto the surface of the arc rod (611), and when one end of the spring telescopic rod (610) touches the groove (616), the spring telescopic rod (610) extends and drives the magnet (612) to move in the fan-shaped air guide groove (69), causing the arc rod (611) to separate from the inner wall of the fan-shaped air guide groove (69), and driving one end of the bolt alloy steel fastener to penetrate into the interior of the fan-shaped air guide groove (69), and the spring telescopic rod (610) slides on the protrusion (617) to generate vibration, shaking off the bolt alloy steel fastener that is not firmly adsorbed on the surface of the arc rod (611); At this time, because the head of the bolt alloy steel fastener has a large diameter, it will not enter the fan-shaped air guide groove (69), thus avoiding the bolt alloy steel fasteners from sticking together. This ensures that the bolt alloy steel fasteners are vertically arranged inside the fan-shaped air guide groove (69), causing the hot air in the suction connecting pipe (614) to be discharged along the gap between the arc rod (611) and the fan-shaped air guide groove (69), and blowing air to dry the surface of the bolt alloy steel fasteners vertically arranged in the fan-shaped air guide groove (69), ensuring that the airflow blows better on the surface of the bolt alloy steel fasteners, and drying the surface of the bolt alloy steel fasteners. S3: Since there are three grooves (616), the bolt alloy steel fastener will be dried by gas three times to ensure the quality of the drying of the bolt alloy steel fastener by the device. Finally, when one end of the spring telescopic rod (610) slides into the arc groove (618), the head of the bolt alloy steel fastener cannot enter the inside of the fan-shaped air guide groove (69), so that the arc rod (611) on the magnet (612) separates from the bolt alloy steel fastener, so that the dried bolt alloy steel fastener is detached from the inside of the fan-shaped air guide groove (69) and falls onto the collection conveyor belt (7). It is then collected by the collection conveyor belt (7) and driven backward, which makes it convenient for the user to collect the heat-treated and dried bolt alloy steel fastener.

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