Tempering furnace for fastener production

Abstract

The tempering furnace for fastener production comprises a frame body, a furnace body, a heating device and an auxiliary supporting device, and the furnace body is installed on the frame body; the auxiliary supporting device comprises a plurality of auxiliary supporting plates, an adjusting assembly and a driving assembly; the auxiliary supporting plates are installed in an inner cavity of the furnace body, the multiple auxiliary supporting plates are evenly distributed in the axial direction of the furnace body, placing grooves are formed in the auxiliary supporting plates, and multiple through-flow holes are formed in the auxiliary supporting plates in a penetrating mode; the adjusting assemblies are mounted on the auxiliary supporting plates, and the adjusting assemblies are used for connecting the two adjacent auxiliary supporting plates; the driving assembly comprises a driving motor and an auxiliary supporting frame. The driving motor is installed on the furnace body, an output shaft of the driving motor is fixedly connected with the auxiliary supporting frame, and one auxiliary supporting plate is connected with the furnace body through the auxiliary supporting frame; the heating device is mounted on the furnace body; the fasteners can be conveniently placed one by one through the auxiliary supporting device, meanwhile, hot airflow in the inner cavity of the furnace body can be conveniently disturbed through rotation of the auxiliary supporting plate, then the fasteners can be conveniently and evenly tempered, and the tempering quality of the fasteners is improved.

Description

Technical Field

[0001] The present application relates to the technical field of fastener heat treatment, and in particular to a tempering furnace for fastener production. Background Art

[0002] Fasteners are mechanical parts used to fasten two or more parts or components. Common fasteners include bolts, studs, screws, nuts, washers, retaining rings, pins, rivets and welding nails. During the processing of fasteners, first, the raw materials are modified; second, the wire is processed; then, the blank is formed through processes such as cold heading, turning and threading; then the wire is heat treated, and the wire is cleaned, high-temperature carburized, quenched and low-temperature tempered; then surface treatment is performed to improve the surface properties of the wire, and finally sorting and packaging are carried out.

[0003] The prior art discloses a pit-type tempering furnace for heat treatment, comprising a tempering furnace body and a lifting and rotating assembly, wherein a supporting base is arranged on the bottom surface of the tempering furnace body, a furnace cover is arranged on the top surface of the tempering furnace body, and a placing plate is arranged inside the tempering furnace body; the lifting and rotating assembly is arranged inside the tempering furnace body, and is used to drive the placing plate to lift and rotate, and the lifting and rotating assembly comprises a rotating hole, which is arranged on the inner bottom surface of the tempering furnace body, a supporting cylinder is fixedly sleeved inside the rotating hole, a first rotating rod is sleeved inside the supporting cylinder, a second rotating rod is arranged on the bottom surface of the first rotating rod, a moving ring is threadedly connected to the outside of the supporting cylinder, two supporting rods are fixedly installed on the top surface of the moving ring, a fixing cylinder is fixedly installed on the top surface of the supporting base, a first rotating motor is fixedly installed on the bottom surface of the fixing cylinder, and the shaft of the first rotating motor is fixedly connected to the second rotating rod.

[0004] In the process of tempering the workpieces in the above-mentioned related pit tempering furnace, the workpieces are stacked on the placement tray. However, since the workpieces are stacked on the placement tray, the tempering of the workpieces is uneven, which affects the tempering quality of the workpieces. Summary of the invention

[0005] In order to improve the tempering quality of fasteners, the present application provides a tempering furnace for fastener production.

[0006] The present application provides a tempering furnace for fastener production, which adopts the following technical solution: A tempering furnace for fastener production, comprising a frame, a furnace body, a heating device and an auxiliary support device, wherein the furnace body is mounted on the frame; The auxiliary support device includes a plurality of auxiliary support plates, an adjustment component and a driving component; The auxiliary support plate is installed in the upper cavity of the furnace body, and a plurality of the auxiliary support plates are evenly distributed along the axial direction of the furnace body, a plurality of placement grooves for placing fasteners are opened on the auxiliary support plate, and a plurality of through-flow holes are opened through the auxiliary support plate; The adjusting component is installed on the auxiliary support plate, and the adjusting component is used to connect two adjacent auxiliary support plates; The driving assembly includes a driving motor and an auxiliary support frame; the driving motor is installed on the furnace body, and the output shaft of the driving motor extends into the inner cavity of the furnace body and is fixedly connected to the auxiliary support frame at one end, wherein one of the auxiliary support plates is connected to the furnace body through the auxiliary support frame; The heating device is installed on the furnace body, and is used for heating the inner cavity of the furnace body.

[0007] By adopting the above technical scheme, during the fastener tempering process, first, the fasteners are placed one by one in the placement groove, and then the driving motor is adjusted, the output shaft of the driving motor drives the auxiliary support frame to rotate, the auxiliary support frame drives the auxiliary support plate to rotate, the auxiliary support plate drives the fasteners to rotate synchronously, and then the heating device is adjusted, the heating device heats the furnace body cavity to achieve tempering of the fasteners in the furnace body cavity, and at the same time, the auxiliary support plate turbules the hot air flow in the furnace body cavity, so that the fasteners are tempered evenly; the designed fastener production tempering furnace facilitates the placement of fasteners one by one through the auxiliary support device, and at the same time, the rotation of the auxiliary support plate facilitates the turbulence of the hot air flow in the furnace body cavity, thereby facilitating uniform tempering of the fasteners and improving the tempering quality of the fasteners.

[0008] Optionally, the furnace body includes a main body, a supporting part and a lifting cylinder; The main body is coaxially arranged with the supporting part, and the main body is located above the supporting part; The main body is fixedly connected to the frame; The lifting cylinder is installed on the frame, and the piston rod of the lifting cylinder is fixedly connected to the supporting part, and the piston rod of the lifting cylinder is arranged along the axial direction of the furnace body.

[0009] By adopting the above technical solution, the lifting cylinder is adjusted, and the piston rod of the lifting cylinder drives the supporting part to move, and the supporting part drives the auxiliary support frame to move downward, and the auxiliary support frame drives the auxiliary support plate to move until the auxiliary support plate is located below the main body, and then the fasteners are placed in the placement grooves one by one. After the fasteners are placed, the lifting cylinder is adjusted, and the piston rod of the lifting cylinder drives the supporting part to rise, and the supporting part drives the auxiliary support frame, the auxiliary support plate and the fasteners to rise synchronously until the supporting part and the main body are sealed and tightly pressed; the segmented design of the furnace body facilitates the removal and placement of fasteners in the furnace body through the liftable supporting part, thereby ensuring the tempering effect of the furnace body.

[0010] Optionally, the supporting part includes a coaxially arranged limit section and a flaring section, the limit section is located above the flaring section, the limit section is located in the inner cavity of the main body, sealing rings are provided between the flaring section and the main body and between the limit section and the main body, and the piston rod of the lifting cylinder is fixedly connected to the side of the flaring section away from the limit section.

[0011] By adopting the above technical scheme, the supporting part is arranged in sections, and the limiting section and the main body are matched and embedded, and the expanding section and the bottom wall of the main body are abutted, so that the connection between the supporting part and the main body is easily achieved. At the same time, the sealing connection between the supporting part and the main body is ensured by the sealing ring, thereby ensuring the tempering effect of the furnace body.

[0012] Optionally, the auxiliary support frame includes a plurality of diagonal support rods, a ball rotatably connected to each of the diagonal support rods, and a telescopic rod connecting two adjacent diagonal support rods; The plurality of diagonal support rods are evenly distributed along the circumferential direction of the supporting portion, and one end of the diagonal support rod is rotatably connected to the lowermost auxiliary support plate, and the other end is rotatably connected to the ball bearing; A plurality of the oblique support rods form a first pitch circle near one end of the auxiliary support plate, and a plurality of the oblique support rods form a second pitch circle near one end of the supporting portion, the diameter of the first pitch circle is smaller than the diameter of the second pitch circle, and the first pitch circle, the second pitch circle and the auxiliary support plate are coaxially arranged; The two ends of the telescopic rod are respectively rotatably connected to two adjacent diagonal bracing rods, and the telescopic rod drives the two diagonal bracing rods to move away from each other; A limiting arc groove for sliding movement of the ball is provided on the top wall of the supporting portion, and the limiting arc groove is arranged concentrically with the supporting portion.

[0013] By adopting the above technical solution, the driving motor is adjusted, and the output shaft of the driving motor drives the auxiliary support frame to rotate. Under the action of the self-weight of the auxiliary support plate, the fasteners and the diagonal support rod, due to the action of the friction between the ball and the supporting part, the supporting part applies a reaction force to the ball and the diagonal support rod, so that the auxiliary support frame rotates along the limiting arc groove, and then the auxiliary support plate and the fastener are rotated; the designed auxiliary support frame is convenient for connecting the supporting part and the auxiliary support plate, so as to realize stable support of the auxiliary support plate.

[0014] Optionally, the limiting arc groove includes multiple first arc segments and multiple second arc segments, multiple first arc segments are located on the first arc, and multiple first arc segments are evenly distributed along the first arc, multiple second arc segments are located on the second arc, and multiple second arc segments are evenly distributed along the second arc, multiple first arc segments and multiple second arc segments are spaced apart, and the first arc segments and the second arc segments have a smooth transition.

[0015] By adopting the above technical scheme, the segmented limiting arc groove, through the first arc segment and the second arc segment, is convenient for guiding the ball, and then convenient for guiding the diagonal support rod, so that the diagonal support rod continuously rotates during the sliding of the ball along the limiting arc groove, thereby realizing the continuous lifting and lowering of the lowermost auxiliary support plate along the axial direction of the furnace body, and continuously disturbing the hot air flow in the heating chamber, thereby ensuring the uniform tempering of the fasteners and improving the tempering quality of the fasteners.

[0016] Optionally, the auxiliary support frame also includes a pressure-bearing column coaxially arranged with the auxiliary support plate, the pressure-bearing column includes a fixed part, a sliding part and a spring, the fixed part is slidingly connected to the sliding part, one end of the fixed part away from the sliding part is coaxially fixed to the output shaft of the drive motor, one end of the sliding part away from the fixed part is fixedly connected to the auxiliary support plate, the spring is installed in the inner cavity of the fixed part, and the spring drives the sliding part to move toward one side of the fixed part.

[0017] By adopting the above technical solution, the driving motor is adjusted, and the output shaft of the driving motor drives the pressure-bearing column to rotate, the pressure-bearing column drives the lowest auxiliary support plate to rotate, the auxiliary support plate drives the adjusting assembly to move, and then drives the remaining auxiliary support plates to rotate. At the same time, the auxiliary support plate drives the diagonal support rod to rotate, and the diagonal support rod drives the ball to slide along the limiting arc groove. Due to the variable diameter setting of the limiting arc groove, the limiting arc groove applies a reaction force to the ball, so that the ball slides along the limiting arc groove and moves along the radial direction of the supporting part. When the ball approaches the axis of the supporting part, the angle between the diagonal support rod and the axis of the supporting part becomes smaller, driving the lowest auxiliary support plate to rise. When the ball is away from the axis of the supporting part, the angle between the diagonal support rod and the axis of the supporting part becomes larger, driving the lowest auxiliary support plate to descend, thereby realizing the continuous lifting and lowering of the remaining auxiliary support plates; the designed pressure-bearing column is convenient for connecting the supporting part with the lowest auxiliary support plate, ensuring that the auxiliary support frame and the auxiliary support plate rotate synchronously, thereby ensuring that the auxiliary support plate is continuously lifted and lowered during the rotation process.

[0018] Optionally, the auxiliary support frame also includes a plurality of retractable reinforcing rods, which are arranged corresponding to the diagonal support rods, and one end of the reinforcing rod is rotatably connected to the fixed part, and the other end is rotatably connected to the diagonal support rod, and the reinforcing rod drives the diagonal support rod to move away from the pressure column.

[0019] By adopting the above technical solution, the designed reinforcing rod is convenient for connecting the diagonal brace rod with the pressure column, thereby facilitating the synchronous movement of the diagonal brace rod and the pressure column. At the same time, it is convenient to apply force to the diagonal brace rod so that the diagonal brace rod moves away from the pressure column.

[0020] Optionally, the adjustment assembly includes multiple groups of adjustment parts located between each adjacent auxiliary support plate, and the multiple groups of adjustment parts are evenly distributed along the circumferential direction of the auxiliary support plate. The adjustment parts include a coaxially arranged bidirectional screw and two sleeves, and the two sleeves are respectively threadedly connected to the positive thread section of the bidirectional screw and the negative thread section of the bidirectional screw. The sleeve is fixedly connected to the auxiliary support plate at one end away from the bidirectional screw.

[0021] By adopting the above technical solution, the designed adjustment component drives the two sleeves to move closer or farther away from each other through a bidirectional screw, which makes it easy to adjust the distance between two adjacent auxiliary support plates, thereby facilitating the placement of fasteners of different sizes.

[0022] Optionally, the main body includes an outer shell layer, an insulating layer and an inner shell layer coaxially arranged from outside to inside, the outer shell layer, the insulating layer and the inner shell layer are fixedly connected, the heating device is located on the main body, and the heating device includes an electric heating wire, which is spirally wound around the outer periphery of the inner shell layer.

[0023] By adopting the above technical scheme, the designed heating device is convenient for transferring heat to the inner cavity of the furnace body, so as to realize the tempering of the fasteners in the inner cavity of the furnace body; in addition, through the layered main body, it is convenient to isolate the heat in the inner cavity of the furnace body, reduce the heat loss in the inner cavity of the furnace body, and at the same time, avoid the heat in the inner cavity of the furnace body from causing damage to the staff.

[0024] Optionally, it also includes a cooling device for cooling the inner cavity of the furnace body, the cooling device includes an air cooler, a cold air duct and a plurality of air guide covers, the cold air duct is arranged in a planar spiral shape in the inner cavity of the main body, the cold air duct extends out of the extension section of the main body and is connected to the air cooler, the air cooler is installed on the main body, the air guide cover is installed on the cold air duct, and the air guide cover is located in the inner cavity of the main body.

[0025] By adopting the above technical solution, the cold air blower is adjusted and started to work, and the cold air flows into the air guide cover along the cold air duct and then sprayed into the inner cavity of the furnace body along the air guide cover, thereby realizing rapid cooling of the inner cavity of the furnace body; the designed cooling device facilitates blowing cold air into the inner cavity of the furnace body, thereby realizing rapid cooling of the inner cavity of the furnace body.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The designed tempering furnace for fastener production is convenient for placing fasteners one by one through the auxiliary support device, and the furnace cavity is connected through the flow hole. At the same time, the auxiliary support frame is lifted and lowered during the rotation process, and the auxiliary support plate is lifted and lowered during the rotation process, thereby realizing the disturbance of the hot air flow in the furnace cavity, ensuring the uniform tempering of the fasteners and improving the tempering quality of the fasteners; 2. The designed tempering furnace for fastener production has a segmented furnace body, which is convenient for the lifting and lowering of the supporting part, and then the lifting and lowering of the auxiliary support plate and fasteners, so as to realize the taking and placing of fasteners in the furnace body and ensure the sealing effect and tempering effect of the furnace body; 3. The designed tempering furnace for fastener production drives two sleeves to move closer or farther from each other through a bidirectional screw, which is convenient for adjusting the distance between two adjacent auxiliary support plates, and further facilitates the placement of fasteners of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a tempering furnace for fastener production according to Example 1 of the present application; Figure 2 is a cross-sectional view of a tempering furnace for fastener production according to Example 1 of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of part A; Figure 4 yes Figure 2 A magnified schematic diagram of part B; Figure 5 yes Figure 2 Enlarged schematic diagram of part C of FIG.

[0028] Description of the reference numerals: 1, frame; 2, furnace body; 21, main body; 211, outer shell; 212, heat insulation layer; 213, inner shell; 22, supporting part; 221, limit section; 222, expansion section; 23, lifting cylinder; 24, sealing ring; 3, heating device; 31, electric heating wire; 4, cooling device; 41, air cooling component; 411, air cooler; 412, cold air pipe; 413, air guide cover; 42, water cooling component; 421, water tank; 422, spiral water pipe; 423, water pump; 424, drain valve; 5, auxiliary Support device; 51. drive assembly; 511. drive motor; 52. adjustment assembly; 521. adjustment member; 5211. sleeve; 5212. bidirectional screw; 53. auxiliary support plate; 531. placement groove; 532. flow hole; 54. auxiliary support frame; 541. pressure column; 5411. fixing part; 5412. sliding part; 5413. spring; 542. reinforcing rod; 543. diagonal support rod; 544. limiting arc groove; 5441. first arc segment; 5442. second arc segment; 545. ball bearing; 546. telescopic rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiment of the present application discloses a tempering furnace for fastener production.

[0031] Reference Figure 1 and Figure 2A tempering furnace for fastener production includes a frame 1, a furnace body 2, a cooling device 4, a heating device 3 and an auxiliary support device 5. The furnace body 2 includes a main body 21, a supporting part 22 and a lifting cylinder 23; the main body 21 is coaxially arranged with the supporting part 22, and the main body 21 is located above the supporting part 22. The main body 21 is fixedly connected to the frame 1. In this embodiment, the main body 21 is welded to the frame 1.

[0032] Reference Figure 2 and Figure 3 The main body 21 includes an outer shell layer 211, an insulating layer 212 and an inner shell layer 213 coaxially arranged from the outside to the inside. In the present application, the outer shell layer 211, the insulating layer 212 and the inner shell layer 213 are fixedly connected; the supporting part 22 includes a limiting section 221 and a flaring section 222 coaxially arranged. In the present embodiment, the limiting section 221 and the flaring section 222 are integrally connected, the limiting section 221 is located above the flaring section 222, and the limiting section 221 is located in the inner cavity of the main body 21. The diameter of the flaring section 222 is larger than the inner cavity diameter of the main body 21, so that the top wall of the flaring section 222 is tightly pressed against the bottom wall of the main body 21; the lifting cylinder 23 is installed on the frame 1, and the piston rod of the lifting cylinder 23 is fixedly connected to the bottom wall of the flaring section 222. The lifting cylinder 23 in the present application can be two, three, or four, as long as it can drive the supporting part 22 to rise and fall to achieve the blocking of the open end of the main body 21.

[0033] Reference Figure 2 and Figure 3 , a guide slider is provided on the outer wall of the flared section 222, and a guide slot for sliding the guide slider is provided on the frame 1, and the guide slot is provided along the axial direction of the furnace body 2; in the present application, the guide slider can be one, two, or three, as long as the guidance of the supporting part 22 is achieved. In the present embodiment, two guide sliders are provided to facilitate the movement of the supporting part 22 along the length direction of the guide slot, which is not shown in the figure; in addition, a sealing ring 24 is provided between the flared section 222 and the main body 21 and between the limiting section 221 and the main body 21. In the present embodiment, the sealing ring 24 is bonded to the supporting part 22 to facilitate the sealing connection between the supporting part 22 and the main body 21; the cooling device 4 and the heating device 3 are both installed on the main body 21, and the cooling device 4 is used for rapid cooling of the inner cavity of the furnace body 2, and the heating device 3 is used for heating the inner cavity of the main body 21 to achieve tempering of the fasteners, and the auxiliary support devices 5 are all installed on the supporting part 22 to facilitate supporting the fasteners one by one.

[0034] Reference Figure 2 and Figure 3The auxiliary support device 5 includes a plurality of auxiliary support plates 53, an adjustment assembly 52 and a drive assembly 51; the auxiliary support plates 53 are installed in the inner cavity of the main body 21, and the plurality of auxiliary support plates 53 are evenly distributed along the axial direction of the main body 21. In the present application, the auxiliary support plates 53 can be two, three, or four, as long as the tempering of a large number of fasteners is met. In the present embodiment, three auxiliary support plates 53 are arranged, and the three auxiliary support plates 53 are evenly distributed along the axial direction of the main body 21. Each auxiliary support plate 53 is provided with a plurality of placement grooves 531 for placing fasteners, and the plurality of placement grooves 531 are evenly distributed on the top wall of the auxiliary support plate 53. At the same time, a plurality of through-flow holes 532 are provided through the auxiliary support plate 53 to facilitate the airflow to move along the through-flow holes 532, so that the temperature in the inner cavity of the main body 21 tends to be consistent.

[0035] Reference Figure 2 and Figure 3 The driving assembly 51 includes a driving motor 511 and an auxiliary support frame 54. The driving motor 511 is installed on the furnace body 2. In the present application, the driving motor 511 is fixedly connected to the supporting portion 22, and the driving motor 511 is located below the supporting portion 22; the output shaft of the driving motor 511 is coaxially arranged with the supporting portion 22, and the output shaft of the driving motor 511 penetrates the auxiliary support plate 53 and extends into the inner cavity of the main body 21 at one end and is fixedly connected to the auxiliary support frame 54, the output shaft of the driving motor 511 is sealed and rotatably connected to the auxiliary support plate 53, and in addition, in the present embodiment, the auxiliary support plate 53 located at the bottom is connected to the supporting portion 22 through the auxiliary support frame 54.

[0036] Reference Figure 2 and Figure 3The auxiliary support frame 54 includes a pressure column 541, a plurality of diagonal support rods 543, a plurality of retractable reinforcing rods 542, a ball 545 rotatably connected to each diagonal support rod 543, and a retractable rod 546 connecting two adjacent diagonal support rods 543; the pressure column 541 is coaxially arranged with the auxiliary support plate 53. In this embodiment, the pressure column 541 is fixedly connected with the auxiliary support plate 53. The pressure column 541 includes a fixed portion 5411, a sliding portion 5412 and a spring 5413. In this embodiment, the fixed portion 5411 is hollow, and the fixed portion 5411 is slidably connected with the sliding portion 5412. The fixed portion 5411 is coaxially arranged with the output shaft of the driving motor 511 at one end away from the sliding portion 5412, and the fixed portion 5411 is connected to the output shaft of the driving motor 511. The shaft is fixedly connected by a coupling, and the sliding portion 5412 is fixedly connected to the supporting portion 22 at one end away from the fixed portion 5411. The spring 5413 is installed in the inner cavity of the fixed portion 5411, and the spring 5413 drives the sliding portion 5412 to move to one side of the fixed portion 5411. The spring 5413 in this embodiment is a tension spring 5413, and one end of the spring 5413 is fixedly engaged with the fixed portion 5411, and the other end is fixedly engaged with the sliding portion 5412. In the present application, there can be three, four, or five diagonal support rods 543, as long as stable support of the auxiliary support plate 53 is achieved. In this embodiment, there are four diagonal support rods 543, and the four diagonal support rods 543 are evenly distributed along the circumferential direction of the supporting portion 22. One end of the diagonal support rod 543 It is rotatably connected to the bottom auxiliary support plate 53, and the other end is rotatably connected to the ball 545; in addition, one end of the four oblique support rods 543 close to the auxiliary support plate 53 forms a first pitch circle, and one end of the four oblique support rods 543 close to the supporting portion 22 forms a second pitch circle, the diameter of the first pitch circle is smaller than the diameter of the second pitch circle, and the first pitch circle, the second pitch circle and the auxiliary support plate 53 are coaxially arranged; a limiting arc groove 544 for the sliding of the ball 545 is provided on the top wall of the supporting portion 22, the limiting arc groove 544 is concentrically arranged with the supporting portion 22, and the limiting arc groove 544 includes a plurality of first arc segments 5441 and a plurality of second arc segments 5442, in the present application, the number of the first arc segments 5441 and the second arc segments 5442 is the same, which can be three, or can be There can be four or five, as long as the guiding of the ball 545 and the variable diameter movement of the ball 545 are achieved, and then the angle between the diagonal support rod 543 and the axis of the pressure column 541 is continuously changed while the diagonal support rod 543 rotates. In this embodiment, there are four first arc segments 5441 and four second arc segments 5442, the four first arc segments 5441 are located on the first arc, and the four first arc segments 5441 are evenly distributed along the first arc, the four second arc segments 5442 are located on the second arc, and the four second arc segments 5442 are evenly distributed along the second arc, the four first arc segments 5441 and the four second arc segments 5442 are arranged at intervals, and the first arc segments 5441 and the second arc segments 5442 have a smooth transition;The two ends of the telescopic rod 546 are respectively connected to the two adjacent diagonal struts 543 for rotation, and the telescopic rod 546 drives the two diagonal struts 543 to move away from each other; the reinforcing rod 542 is arranged corresponding to the diagonal struts 543, and the number of the reinforcing rods 542 and the diagonal struts 543 is the same, one end of the reinforcing rod 542 is connected to the fixed part 5411 for rotation, and the other end is connected to the diagonal struts 543 for rotation, and the reinforcing rod 542 drives the diagonal struts 543 to move away from the pressure column 541.;

[0037] Reference Figure 2 and Figure 3 The adjusting component 52 is installed on the auxiliary support plate 53, and the adjusting component 52 is used to connect two adjacent auxiliary support plates 53. The adjusting component 52 includes a plurality of adjusting members 521 located between each two adjacent auxiliary support plates 53. In the present application, the adjusting members 521 between two adjacent auxiliary support plates 53 can be three groups, four groups, or five groups, as long as stable support of two adjacent auxiliary support plates 53 is achieved. In the present embodiment, the adjusting members 521 are arranged in four groups, and the four groups of adjusting members 521 are evenly distributed along the circumferential direction of the auxiliary support plate 53. The adjusting member 521 includes a coaxially arranged bidirectional screw 5212 and two sleeves 5211. The two sleeves 5211 are respectively threadedly connected with the positive thread section of the bidirectional screw 5212 and the reverse thread section of the bidirectional screw 5212. The sleeve 5211 is fixedly connected to the two adjacent auxiliary support plates 53 at one end away from the bidirectional screw 5212.

[0038] Reference Figure 2 and Figure 4 The heating device 3 is installed on the main body 21, and the heating device 3 includes a heating wire 31. The heating wire 31 is located between the insulation layer 212 and the inner shell layer 213, and is spirally wound around the outer periphery of the inner shell layer 213. In this embodiment, the heating wire 31 is fixedly connected to the inner shell layer 213.

[0039] Reference Figure 2 and Figure 4 The cooling device 4 includes an air cooling component 41 and a water cooling component 42. The air cooling component 41 includes an air cooler 411, a cold air duct 412 and a plurality of air guide covers 413. The cold air duct 412 is spirally arranged in the inner cavity of the main body 21 in a plane. In this embodiment, the cold air duct 412 is installed on the top plate of the main body 21 by a buckle to achieve a fixed connection between the cold air duct 412 and the main body 21. The cold air duct 412 extends out of the extension section of the main body 21 and is connected to the air cooler 411. The air cooler 411 is installed on the main body 21. In this embodiment, the air cooler 411 is fixed to the main body 21 by bolts, and the air guide cover 413 is installed on the cold air duct 412. The air guide cover 413 is located in the inner cavity of the main body 21, and the air guide cover 413 is distributed along the spiral line of the cold air duct 412; in addition, a pressure relief valve is installed on the side wall of the main body 21 to facilitate pressure relief in the inner cavity of the main body 21.

[0040] Reference Figure 2 and Figure 5 The water cooling assembly 42 includes a water tank 421, a spiral water pipe 422, a water pump 423 and a drain valve 424. The spiral water pipe 422 is located between the outer shell and the insulation layer 212, and the spiral water pipe 422 is spirally coiled on the insulation layer 212. In this embodiment, the spiral water pipe 422 is fixedly connected to the insulation layer 212, and the extension section of the spiral water pipe 422 extending out of the main body 21 is connected to the water tank 421, and the water tank 421 is installed on the top wall of the main body 21; the water pump 423 is installed on the spiral water pipe 422, and the pressure relief valve is installed on the extension section of the spiral water pipe 422 extending out of the main body 21 at one end away from the water tank 421, so as to facilitate the discharge of cooling water.

[0041] The implementation principle of the tempering furnace for fastener production in the embodiment of the present application is as follows: during the tempering process of the fasteners, first, the lifting cylinder 23 is adjusted, and the piston rod of the lifting cylinder 23 drives the supporting part 22 to move, and the supporting part 22 drives the auxiliary support frame 54 to move downward, and the auxiliary support frame 54 drives the auxiliary support plate 53 to move until the auxiliary support plate 53 is located below the main body 21, and then the fasteners are placed in the placement groove 531 one by one. After the fasteners are placed, the lifting cylinder 23 is adjusted, and the piston rod of the lifting cylinder 23 drives the supporting part 22 to rise, and the supporting part 22 drives the auxiliary support frame 54 to move downward. The support frame 54, the auxiliary support plate 53 and the fastener rise synchronously until the supporting portion 22 and the main body 21 are sealed and tightly pressed; then, the driving motor 511 is adjusted, and the output shaft of the driving motor 511 drives the output shaft of the driving motor 511 to drive the pressure column 541 to rotate, and the pressure column 541 drives the bottom auxiliary support plate 53 to rotate, and then drives the remaining auxiliary support plates 53 to rotate. At the same time, the auxiliary support plate 53 drives the diagonal support rod 543 to rotate, and the diagonal support rod 543 drives the ball 545 to slide along the limiting arc groove 544. Due to the variable diameter setting of the limiting arc groove 544, the limiting arc groove 544 moves to The ball 545 applies a reaction force, so that the ball 545 slides along the limiting arc groove 544 and moves along the radial direction of the supporting part 22. When the ball 545 approaches the axis of the supporting part 22, the angle between the inclined support rod 543 and the axis of the supporting part 22 becomes smaller, driving the lowermost auxiliary support plate 53 to rise. When the ball 545 moves away from the axis of the supporting part 22, the angle between the inclined support rod 543 and the axis of the supporting part 22 becomes larger, driving the lowermost auxiliary support plate 53 to fall, thereby realizing the continuous lifting and lowering of the auxiliary support plate 53. Then, the power supply of the heating wire 31 is started, and the electric heating The wire 31 heats the inner cavity of the furnace body 2 to achieve tempering of the fasteners in the inner cavity of the furnace body 2. At the same time, the auxiliary support plate 53 disturbs the hot air flow in the inner cavity of the furnace body 2 to make the fasteners evenly tempered. After the fasteners are tempered, the air cooler 411 and the water pump 423 are adjusted, and the cold air flows into the cold air pipe 412, and then flows into the air guide cover 413 along the cold air pipe 412, and then enters the inner cavity of the furnace body 2. Moreover, under the action of the water pump 423, the cooling water in the water tank 421 moves along the spiral water pipe 422, thereby cooling the inner cavity of the furnace body 2, thereby achieving rapid cooling of the inner cavity of the furnace body 2.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tempering furnace for fastener production, characterized in that: It comprises a frame (1), a furnace body (2), a heating device (3) and an auxiliary support device (5), wherein the furnace body (2) is installed on the frame (1); The auxiliary support device (5) comprises a plurality of auxiliary support plates (53), an adjustment component (52) and a driving component (51); The auxiliary support plate (53) is installed in the inner cavity of the furnace body (2), and a plurality of the auxiliary support plates (53) are evenly distributed along the axial direction of the furnace body (2); a plurality of placement grooves (531) for placing fasteners are provided on the auxiliary support plate (53), and a plurality of through-flow holes (532) are provided through the auxiliary support plate (53); The adjusting component (52) is installed on the auxiliary support plate (53), and the adjusting component (52) is used to connect two adjacent auxiliary support plates (53); The driving assembly (51) comprises a driving motor (511) and an auxiliary support frame (54); the driving motor (511) is mounted on the furnace body (2), and an output shaft of the driving motor (511) extends into an inner cavity of the furnace body (2) and is fixedly connected to the auxiliary support frame (54) at one end, wherein one of the auxiliary support plates (53) is connected to the furnace body (2) via the auxiliary support frame (54); The heating device (3) is installed on the furnace body (2), and the heating device (3) is used to heat the inner cavity of the furnace body (2).

2. The tempering furnace for fastener production according to claim 1, characterized in that: The furnace body (2) comprises a main body (21), a supporting part (22) and a lifting cylinder (23); The main body (21) and the supporting part (22) are coaxially arranged, and the main body (21) is located above the supporting part (22); The main body (21) is fixedly connected to the frame (1); The lifting cylinder (23) is installed on the frame (1), and the piston rod of the lifting cylinder (23) is fixedly connected to the supporting part (22), and the piston rod of the lifting cylinder (23) is arranged along the axial direction of the furnace body (2).

3. The tempering furnace for fastener production according to claim 2, characterized in that: The supporting portion (22) comprises a coaxially arranged limiting section (221) and a flaring section (222); the limiting section (221) is located above the flaring section (222); the limiting section (221) is located in the inner cavity of the main body (21); a sealing ring (24) is provided between the flaring section (222) and the main body (21) and between the limiting section (221) and the main body (21); and the piston rod of the lifting cylinder (23) is fixedly connected to the side of the flaring section (222) away from the limiting section (221).

4. The tempering furnace for fastener production according to claim 2, characterized in that: The auxiliary support frame (54) comprises a plurality of diagonal support rods (543), a ball (545) rotatably connected to each of the diagonal support rods (543), and a telescopic rod (546) connecting two adjacent diagonal support rods (543); The plurality of diagonal support rods (543) are evenly distributed along the circumferential direction of the supporting portion (22), and one end of the diagonal support rod (543) is rotatably connected to the lowermost auxiliary support plate (53), and the other end is rotatably connected to the ball (545); A plurality of the oblique support rods (543) form a first pitch circle near one end of the auxiliary support plate (53), and a plurality of the oblique support rods (543) form a second pitch circle near one end of the supporting portion (22), the diameter of the first pitch circle is smaller than the diameter of the second pitch circle, and the first pitch circle, the second pitch circle and the auxiliary support plate (53) are coaxially arranged; The two ends of the telescopic rod (546) are respectively rotatably connected to two adjacent diagonal support rods (543), and the telescopic rod (546) drives the two diagonal support rods (543) to move away from each other; A limiting arc groove (544) for the sliding movement of the ball (545) is provided on the top wall of the supporting portion (22), and the limiting arc groove (544) is arranged concentrically with the supporting portion (22).

5. The tempering furnace for fastener production according to claim 4, characterized in that: The limiting arc groove (544) includes a plurality of first arc segments (5441) and a plurality of second arc segments (5442), wherein the plurality of first arc segments (5441) are located on a first arc, and the plurality of first arc segments (5441) are evenly distributed along the first arc, and the plurality of second arc segments (5442) are located on a second arc, and the plurality of second arc segments (5442) are evenly distributed along the second arc, the plurality of first arc segments (5441) and the plurality of second arc segments (5442) are arranged at intervals, and the first arc segments (5441) and the second arc segments (5442) have a smooth transition.

6. The tempering furnace for fastener production according to claim 4, characterized in that: The auxiliary support frame (54) also includes a pressure-bearing column (541) coaxially arranged with the auxiliary support plate (53), and the pressure-bearing column (541) includes a fixed portion (5411), a sliding portion (5412) and a spring (5413). The fixed portion (5411) is slidingly connected to the sliding portion (5412), and the end of the fixed portion (5411) away from the sliding portion (5412) is coaxially fixed to the output shaft of the drive motor (511), and the end of the sliding portion (5412) away from the fixed portion (5411) is fixedly connected to the auxiliary support plate (53), and the spring (5413) is installed in the inner cavity of the fixed portion (5411), and the spring (5413) drives the sliding portion (5412) to move toward one side of the fixed portion (5411).

7. The tempering furnace for fastener production according to claim 6, characterized in that: The auxiliary support frame (54) also includes a plurality of retractable reinforcing rods (542), wherein the reinforcing rods (542) are arranged corresponding to the diagonal support rods (543), and one end of the reinforcing rods (542) is rotatably connected to the fixing portion (5411), and the other end is rotatably connected to the diagonal support rods (543), and the reinforcing rods (542) drive the diagonal support rods (543) to move to a side away from the pressure column (541).

8. The tempering furnace for fastener production according to claim 1, characterized in that: The adjustment assembly (52) includes a plurality of adjustment members (521) located between each adjacent auxiliary support plate (53), and the plurality of adjustment members (521) are evenly distributed along the circumferential direction of the auxiliary support plate (53). The adjustment member (521) includes a coaxially arranged bidirectional screw (5212) and two sleeves (5211), and the two sleeves (5211) are respectively threadedly connected to the positive thread section of the bidirectional screw (5212) and the negative thread section of the bidirectional screw (5212), and the sleeve (5211) is fixedly connected to the auxiliary support plate (53) at one end away from the bidirectional screw (5212).

9. The tempering furnace for fastener production according to claim 2, characterized in that: The main body (21) comprises an outer shell layer (211), a heat insulation layer (212) and an inner shell layer (213) which are coaxially arranged from outside to inside, the outer shell layer (211), the heat insulation layer (212) and the inner shell layer (213) are fixedly connected, the heating device (3) is located on the main body (21), and the heating device (3) comprises an electric heating wire (31), and the electric heating wire (31) is spirally wound around the outer periphery of the inner shell layer (213).

10. The tempering furnace for fastener production according to claim 2, characterized in that: It also includes a cooling device (4) for cooling the inner cavity of the furnace body (2), the cooling device (4) including a cold air fan (411), a cold air pipe (412) and a plurality of air guide covers (413), the cold air pipe (412) being arranged in a plane spiral shape in the inner cavity of the main body (21), the cold air pipe (412) extending out of the extension section of the main body (21) and connected to the cold air fan (411), the cold air fan (411) being installed on the main body (21), the air guide cover (413) being installed on the cold air pipe (412), and the air guide cover (413) being located in the inner cavity of the main body (21).

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