High-strength stud heat treatment device

Abstract

The application relates to the technical field of stud heat treatment, in particular to a high-strength stud heat treatment device. The device comprises a heat treatment equipment and a controller, the heat treatment equipment is provided with the controller, further comprises a support, an electric roller, a first gear and the like, two supports are arranged on the side surface of the heat treatment equipment, the electric roller is rotatably arranged on the supports, and the first gear is arranged on the electric roller. The rotatable rotating drum is arranged in the conveying belt, the rotating mechanism linked with the rotating drum is arranged in the heat treatment equipment, the stud can continuously rotate in the heating process, the orientation of the surface of the stud relative to the heating source is continuously changed, the design effectively avoids the problems of local overheating or uneven heating caused by the traditional fixed heating mode, the uniformity of the heating of the surfaces of the stud is obviously improved, the generation of internal thermal stress is reduced, the deformation or cracking of the workpiece in the subsequent cooling process is prevented, and the mechanical property consistency and stability of the stud after the heat treatment are improved.

Description

Technical Field

[0001] This invention relates to the field of stud heat treatment technology, and in particular to a high-strength stud heat treatment apparatus. Background Technology

[0002] In modern mechanical manufacturing, construction engineering, automotive industry and aerospace, high-strength studs are key fasteners. Their mechanical properties, especially strength, toughness and fatigue life, are directly related to the safety and reliability of the entire structure. In order to meet these stringent performance requirements, high-strength studs must undergo a series of heat treatment processes after forming, such as quenching, tempering, annealing or heat treatment, to optimize their internal metallographic structure and improve the overall mechanical properties of the material.

[0003] Currently, continuous or semi-continuous heat treatment production lines are commonly used in industry to process large batches of studs. A typical process flow is as follows: a mesh belt conveyor continuously and stably feeds the studs to be processed into the heating furnace of the heat treatment equipment, allowing the studs to be heated at a set temperature in the heating furnace for a certain period of time, thereby achieving heat treatment of the studs. However, most heat treatment equipment usually heats the workpiece from one or several fixed directions. When the studs are laid flat or stacked on the conveyor, the surface facing the heating source will receive heat first and mainly, while the surface facing away from the heating source and the sides will mainly obtain heat from the already heated surface through heat conduction. Since the heat conduction of metal materials takes time, and the studs themselves have a certain volume and mass, a significant temperature difference will form between the surfaces of the studs in the initial stage and the rapid heating stage. This uneven temperature distribution causes thermal stress to be generated inside the studs, which not only affects the consistency of the final heat treatment effect, but may also cause deformation or cracking during the subsequent cooling process. Summary of the Invention

[0004] In view of this, the present invention provides a high-strength stud heat treatment device, which can solve the problem that the existing method of heat treatment of studs is prone to uneven heating of the various surfaces of the studs, which not only affects the consistency of the final heat treatment effect, but may also cause deformation or cracking during the subsequent cooling process.

[0005] The technical solution of this invention is as follows: a high-strength stud heat treatment device, comprising a heat treatment equipment and a controller. The heat treatment equipment is equipped with a controller and also includes a support, an electric roller, a first gear, a conveyor belt, a support block, a rotating mechanism, a feeding mechanism, a reciprocating mechanism, and a friction plate. Two supports are provided on the side of the heat treatment equipment. An electric roller is rotatably mounted on the support, and a first gear is provided on the electric roller. A conveyor belt is provided between the two first gears. The conveyor belt includes connecting strips, a rotating drum, and an annular partition plate. A rotating drum is rotatably arranged at even intervals between the two connecting strips. An annular partition plate is spaced on the rotating drum. The rotating drum of the conveyor belt contacts the first gear. A support block is provided inside the heat treatment equipment to provide support for the conveyor belt. A rotating mechanism is provided on the support block to drive the rotating drum to rotate. A feeding mechanism for feeding studs is provided on the side of the support. A reciprocating mechanism is provided on the support block. A friction plate is connected to the reciprocating mechanism. The reciprocating mechanism is used to drive the friction plate to move back and forth, so that the friction plate drives the stud to move.

[0006] Optionally, the rotating mechanism includes a second gear and a rack. The second gear is provided on both sides of the rotating cylinder, and the rack is symmetrically provided on the support block. The second gear is used to mesh with the rack, and the rack drives the second gear to rotate.

[0007] Optionally, the feeding mechanism includes a feeding hopper, a guide rod, a lifting platform, and a screw motor. The feeding hopper is located on the side of one of the supports. A guide rod is installed on the feeding hopper, and a lifting platform is slidably mounted on the guide rod. The lifting platform is used to lift the studs in the feeding hopper. A screw motor is installed on the feeding hopper, and the screw of the screw motor is threadedly connected to the lifting platform.

[0008] Optionally, the reciprocating mechanism includes a fixed frame, a sliding frame, and an electric push rod. The fixed frame is mounted on the support block, and the sliding frame is slidably mounted on the fixed frame. The friction plate is connected to the bottom of the sliding frame, and the electric push rod is mounted on the fixed frame. The telescopic rod of the electric push rod is connected to the sliding frame.

[0009] Optionally, it also includes a baffle, which is installed on the hopper to limit the drop position of the stud.

[0010] Optionally, it also includes a fan, which is mounted on the side of the heat treatment equipment to dissipate heat from the rotating drum.

[0011] Optionally, it also includes a converging frame, which is installed on the fan and is used to gather the air blown out by the fan and send it into the rotating drum.

[0012] Optionally, it also includes heat dissipation copper fins, which are spaced apart inside the rotating drum to dissipate heat from the drum.

[0013] The beneficial effects of this invention are as follows: 1. By setting a rotatable drum in the conveyor belt and setting a rotating mechanism linked to the drum inside the heat treatment equipment, the stud can rotate continuously during the heating process, thereby constantly changing the orientation of its surface relative to the heating source. This design effectively avoids the problems of local overheating or uneven heating caused by traditional fixed heating methods, significantly improves the uniformity of heating of each surface of the stud, reduces the generation of internal thermal stress, prevents the workpiece from deforming or cracking during subsequent cooling, and improves the consistency and stability of the mechanical properties of the stud after heat treatment.

[0014] 2. This invention achieves automatic lifting and directional conveying of studs by setting up a feeding mechanism combined with reciprocating friction plates. The inclined structure of the lifting platform is used to screen longitudinally placed studs, and the friction plates are used to fine-tune the studs falling onto the rotating drum, so that they fall accurately between adjacent annular isolation plates. This process realizes automatic feeding and posture correction of studs, ensuring that each stud is in an independent and separated heating position, avoiding uneven heating caused by stacking or contact, and improving feeding efficiency and loading consistency.

[0015] 3. The present invention sets heat dissipation copper fins inside the rotating drum, and in conjunction with symmetrically arranged fans and converging frames at the front and rear, forms a forced air cooling channel that runs through the inside of the rotating drum. The front fan concentrates the airflow into the rotating drum through the converging frame, while the rear fan extracts the hot air. When the airflow flows through the heat dissipation copper fins, it can efficiently remove heat, effectively reduce the working temperature of the rotating drum in a long-term high-temperature environment, slow down material aging, extend the service life of the core components of the conveying device, and improve the reliability and stability of the equipment operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the bracket, electric roller, and support block of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the electric roller, the first gear, and the conveyor belt of the present invention.

[0019] Figure 4 This is a structural separation diagram of the electric roller, the first gear, and the conveyor belt of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the rotating cylinder and annular isolation plate of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the rotating mechanism of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the support block and rack of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0024] Figure 9 This is a cross-sectional view of the feeding mechanism of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the reciprocating mechanism of the present invention.

[0026] Figure 11 This is a structural separation diagram of the reciprocating mechanism of the present invention.

[0027] Figure 12 This is a three-dimensional structural diagram of the heat treatment equipment, controller, and fan of the present invention.

[0028] Figure 13 This is a three-dimensional structural diagram of the conveyor belt, fan, and converging frame of the present invention.

[0029] Figure 14 This is a three-dimensional structural diagram of the rotating cylinder, annular isolation plate, and heat dissipation copper sheet of the present invention.

[0030] The markings in the attached diagram are as follows: 1: Heat treatment equipment, 2: Controller, 3: Support, 4: Electric drum, 5: First gear, 601: Connecting bar, 602: Rotary drum, 603: Annular isolation plate, 7: Support block, 801: Second gear, 802: Rack, 901: Feed hopper, 902: Guide rod, 903: Lifting platform, 904: Screw motor, 1001: Fixed frame, 1002: Sliding frame, 1003: Electric push rod, 11: Friction plate, 12: Baffle, 13: Fan, 14: Converging frame, 15: Heat dissipation copper fin. Detailed Implementation

[0031] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] Example: A high-strength stud heat treatment apparatus, see below. Figures 1-11As shown, the device includes a heat treatment device 1 and a controller 2. The controller 2 is installed on the left side of the front center of the heat treatment device 1 and is electrically connected to the heat treatment device 1. It also includes a support 3, an electric roller 4, a first gear 5, a conveyor belt, a support block 7, a rotating mechanism, a feeding mechanism, a reciprocating mechanism, and a friction plate 11. Two supports 3 are located on the left and right sides of the heat treatment device 1, respectively, with the right support 3 connected to the right side of the heat treatment device 1. An electric roller 4 is rotatably installed on the upper side of each of the two supports 3 and is electrically connected to the controller 2. A first gear 5 is installed on each of the two electric rollers 4. A conveyor belt is wound between the two first gears 5. The conveyor belt includes connecting strips 601, rotating drums 602, and annular partition plates 603. The two connecting strips 601 are distributed front to back, and rotating drums 602 are evenly spaced between the two connecting strips 601. The gap between two adjacent rotating drums 602 is smaller than the diameter of the stud, allowing the stud to be positioned between the two rotating drums 602. 602 is a hollow structure. Annular isolation plates 603 are evenly spaced on the outer side of the rotating drum 602. The rotating drum 602 of the conveyor belt is in contact with the first gear 5. The first gear 5 is driven to rotate by the electric roller 4, enabling the first gear 5 to drive the conveyor belt in a cyclical motion. Both the front and rear sides of the annular isolation plates 603 are sloped, facilitating the guidance of the studs to fall between adjacent annular isolation plates 603. The sloped surfaces also prevent contact with the stud end face. The heat treatment equipment 1 includes a support block 7 for supporting the conveyor belt. The support block 7 has a rotating mechanism for driving the rotating drum 602 to rotate. The side of the support 3 has a feeding mechanism for feeding the studs. The support block 7 has a reciprocating mechanism connected to a friction plate 11. The reciprocating mechanism drives the friction plate 11 to move back and forth, causing the friction plate 11 to move the studs, thereby bringing the studs on the rotating drum 602 between the two annular isolation plates 603.

[0033] See Figure 6 and Figure 7 As shown, the rotating mechanism includes a second gear 801 and a rack 802; the second gear 801 is provided on both the front and rear sides of the rotating cylinder 602; the rack 802 is symmetrically provided on the top of the support block 7. The second gear 801 is used to mesh with the rack 802. The rack 802 drives the second gear 801 to rotate, so that the second gear 801 drives the rotating cylinder 602 to rotate, so that the rotating cylinder 602 drives the stud to rotate through friction.

[0034] See Figure 8 and Figure 9As shown, the feeding mechanism includes a feeding hopper 901, guide rods 902, a lifting platform 903, and a screw motor 904. The feeding hopper 901 is located on the left side of the bracket 3 on the left side. The bottom and upper right side of the feeding hopper 901 are both sloped. Three guide rods 902 are installed at intervals on the lower right side of the feeding hopper 901, and the three guide rods 902 are distributed front and back. The lifting platform 903 is slidably arranged between the three guide rods 902. The lifting platform 903 slides through the feeding hopper 901. The top right side of the lifting platform 903 is sloped. The lifting platform 903 is used to lift the studs inside the feeding hopper 901. Screw motors 904 are installed on both the front and back sides of the lower right side of the feeding hopper 901. The screws of the two screw motors 904 are threadedly connected to the lifting platform 903. The screw motors 904 are electrically connected to the controller 2.

[0035] See Figure 10 and Figure 11 As shown, the reciprocating mechanism includes a fixed frame 1001, a sliding frame 1002, and an electric push rod 1003; the fixed frame 1001 is installed on the top left side of the support block 7; the sliding frame 1002 is slidably arranged on the fixed frame 1001, and the friction plate 11 is connected to the bottom of the sliding frame 1002. The friction plate 11 is made of rubber; the electric push rods 1003 are symmetrically arranged on the front and back of the upper side of the fixed frame 1001. The telescopic rods of the two electric push rods 1003 are connected to the top of the sliding frame 1002, and the electric push rods 1003 are electrically connected to the controller 2.

[0036] In operation, the controller 2 first starts the electric roller 4 and the heat treatment equipment 1, causing the electric roller 4 to drive the first gear 5 to rotate clockwise. This causes the first gear 5 to drive the conveyor belt in a cyclical motion. Then, the controller 2 starts the electric push rod 1003, causing it to drive the sliding frame 1002 to move back and forth. This causes the sliding frame 1002 to drive the friction plate 11 to move back and forth. Next, an appropriate amount of studs are loaded into the feeding hopper 901. Then, the controller 2 starts the lead screw motor 904, causing it to drive the lifting platform 903 to move up and down. When the top of the lifting platform 903 moves down to below the inner bottom of the feeding hopper 901, the studs in the feeding hopper 901 will roll down the inclined surface of the inner bottom to the top of the lifting platform 903. The screw is limited by the inclined surface at the top of the lifting platform 903 and the right side inside the feeding hopper 901. When the lifting platform 903 moves upward, it will drive the longitudinally placed screw to move upward (the front-to-back direction is longitudinal, and the left-to-right direction is lateral). The laterally placed screw will fall back into the feeding hopper 901 from the top of the lifting platform 903 due to insufficient support. When the screw at the top of the lifting platform 903 moves upward and separates from the right side inside the feeding hopper 901, the screw will roll to the right through the inclined surface at the top of the lifting platform 903 onto the inclined surface on the upper right side of the feeding hopper 901. Then the screw will continue to roll to the right through the inclined surface on the upper right side of the feeding hopper 901 until the screw detaches from the feeding hopper 901 and falls between the two adjacent rotating drums 602 on the conveyor belt. In this way, the screw can be automatically fed.

[0037] When the stud falls between two adjacent rotating drums 602 on the conveyor belt, the conveyor belt will move the stud to the right. If the stud initially falls on the annular partition plate 603 of the rotating drum 602, the annular partition plate 603 will elevate the stud, causing it to contact the friction plate 11 during its rightward movement. The friction plate 11 will then use friction to move the stud forward or backward, allowing it to leave the annular partition plate 603 and fall between two adjacent annular partition plates 603 on the rotating drum 602. Subsequently, because the stud loses the support of the annular isolation plate 603, the stud will separate from the friction plate 11. If the stud initially falls between two adjacent annular isolation plates 603 on the rotating drum 602, it will not contact the friction plate 11 during the rightward conveying process. In this way, the stud can be automatically aligned so that all studs fed into the heat treatment equipment 1 to the right are between two adjacent annular isolation plates 603 on the rotating drum 602. This ensures that all studs fed into the heat treatment equipment 1 are separated by the annular isolation plates 603 to prevent contact surfaces between studs and avoid uneven heating caused by contact surfaces during subsequent heat treatment of the studs.

[0038] As the conveyor belt continues to transport the stud to the right, it is fed into the heating furnace of heat treatment equipment 1. Heat treatment equipment 1 then heat-treats the surface of the stud. When the second gear 801 connected to the conveyor drum 602 meshes with the rack 802, the rack 802 drives the second gear 801 to rotate, thereby driving the drum 602 to rotate. The drum 602, through friction, causes the stud to rotate, thus allowing the stud to continuously adjust its surface orientation to ensure the proper functioning of all surfaces. All surfaces of the stud can face the heat source of the heat treatment equipment 1 and receive heat, thereby ensuring that each surface of the stud is heated evenly. After the stud has completed heat treatment in the heating furnace of the heat treatment equipment 1, the conveyor belt will send the heat-treated stud out of the heating furnace of the heat treatment equipment 1 to the right, thereby discharging the heat-treated stud. During this process, when the second gear 801 connected to the conveyor belt drum 602 is separated from the rack 802, the second gear 801 and the drum 602 stop rotating, causing the heat-treated stud to stop rotating.

[0039] By repeating the above operations, the automatic feeding, alignment, heat treatment, and discharge of the studs can be continuously achieved. After all the studs have completed heat treatment and discharge, the controller 2 controls the electric roller 4 and the heat treatment equipment 1 to shut down, so that the conveyor belt stops circulating. Finally, the controller 2 controls the electric push rod 1003 and the lead screw motor 904 to shut down, so that the sliding frame 1002, the friction plate 11, and the lifting platform 903 stop reciprocating.

[0040] See Figure 8 and Figure 9 As shown, it also includes a baffle 12; a baffle 12 is installed on the upper right side of the feeding hopper 901, and the baffle 12 is used to limit the falling position of the stud.

[0041] By setting baffle 12, when the stud rolls to the right from the inclined surface on the upper right side of the hopper 901 and falls between two adjacent rotating drums 602 on the conveyor belt, the baffle 12 can block the stud, limiting its falling position and ensuring that the stud falls accurately between two adjacent rotating drums 602 on the conveyor belt directly below. This prevents the stud from falling too quickly due to inertia and landing between other two adjacent rotating drums 602.

[0042] See Figure 12 and Figure 13 As shown, it also includes a fan 13; the heat treatment equipment 1 is symmetrically installed with fans 13 at the front and back, the fans 13 are used to dissipate heat from the rotating drum 602, and the fans 13 are electrically connected to the controller 2.

[0043] By setting up fan 13, when the electric drum 4 and heat treatment equipment 1 are started by controller 2, fan 13 is also started by controller 2. This causes the front fan 13 to introduce air into the drum 602, while the rear fan 13 draws air out of the drum 602. In this way, airflow can be guided through the drum 602 to dissipate heat and extend the service life of the drum 602. When the electric drum 4 and heat treatment equipment 1 are shut down by controller 2, fan 13 is also shut down by controller 2.

[0044] See Figure 13 As shown, it also includes a converging frame 14; the fan 13 is connected to the converging frame 14 on the side facing the rotating cylinder 602. The converging frame 14 is used to gather the air blown out by the fan 13 and send it into the rotating cylinder 602.

[0045] By setting the converging frame 14, the front converging frame 14 can converge the airflow and introduce it into the rotating cylinder 602, thereby improving the heat dissipation effect of the fan 13 on the rotating cylinder 602; while the rear converging frame 14 can introduce all the airflow in the rotating cylinder 602 into the rear fan 13, so that the rear fan 13 can draw all the airflow out of the rotating cylinder 602.

[0046] See Figure 14 As shown, it also includes heat dissipation copper fins 15; heat dissipation copper fins 15 are arranged in a ring at intervals inside the rotating cylinder 602, and the heat dissipation copper fins 15 are used to dissipate heat from the rotating cylinder 602.

[0047] By setting up heat dissipation copper fins 15, when airflow passes through the rotating cylinder 602, the heat dissipation efficiency of the rotating cylinder 602 can be improved by utilizing the heat dissipation copper fins 15, thereby accelerating the heat dissipation of the rotating cylinder 602.

[0048] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A high-strength stud heat treatment apparatus, comprising a heat treatment device (1) and a controller (2), wherein the controller (2) is provided on the heat treatment device (1), characterized in that: It also includes a bracket (3), an electric roller (4), a first gear (5), a conveyor belt, a support block (7), a rotating mechanism, a feeding mechanism, a reciprocating mechanism, and a friction plate (11). The heat treatment equipment (1) has two brackets (3) on its side. An electric roller (4) is rotatably mounted on the bracket (3). A first gear (5) is mounted on the electric roller (4). A conveyor belt is provided between the two first gears (5). The conveyor belt includes connecting strips (601), a rotating drum (602), and an annular partition plate (603). A rotating drum (602) is rotatably mounted at even intervals between the two connecting strips (601). Annular isolation plates (603) are spaced apart on the drum (602). The drum (602) of the conveyor belt contacts the first gear (5). A support block (7) is provided inside the heat treatment equipment (1) to provide support for the conveyor belt. A rotating mechanism is provided on the support block (7) to drive the drum (602) to rotate. A feeding mechanism for feeding the stud is provided on the side of the bracket (3). A reciprocating mechanism is provided on the support block (7). A friction plate (11) is connected to the reciprocating mechanism. The reciprocating mechanism is used to drive the friction plate (11) to move back and forth, so that the friction plate (11) drives the stud to move.

2. The high-strength stud heat treatment apparatus as described in claim 1, characterized in that: The rotating mechanism includes a second gear (801) and a rack (802). The second gear (801) is provided on both sides of the rotating drum (602), and the rack (802) is symmetrically provided on the support block (7). The second gear (801) is used to mesh with the rack (802), and the rack (802) drives the second gear (801) to rotate.

3. The high-strength stud heat treatment apparatus as described in claim 1, characterized in that: The feeding mechanism includes a feeding hopper (901), a guide rod (902), a lifting platform (903), and a screw motor (904). The feeding hopper (901) is located on the side of the bracket (3) on one side. The guide rod (902) is installed on the feeding hopper (901). The lifting platform (903) is slidably installed on the guide rod (902). The lifting platform (903) is used to lift the stud in the feeding hopper (901). The screw motor (904) is installed on the feeding hopper (901). The screw of the screw motor (904) is threadedly connected to the lifting platform (903).

4. The high-strength stud heat treatment apparatus as described in claim 1, characterized in that: The reciprocating mechanism includes a fixed frame (1001), a sliding frame (1002) and an electric push rod (1003). The fixed frame (1001) is installed on the support block (7), and the sliding frame (1002) is slidably arranged on the fixed frame (1001). The friction plate (11) is connected to the bottom of the sliding frame (1002). The electric push rod (1003) is arranged on the fixed frame (1001), and the telescopic rod of the electric push rod (1003) is connected to the sliding frame (1002).

5. The high-strength stud heat treatment apparatus as described in claim 3, characterized in that: It also includes a baffle (12), which is installed on the feeding hopper (901). The baffle (12) is used to limit the falling position of the stud.

6. The high-strength stud heat treatment apparatus as described in claim 1, characterized in that: It also includes a fan (13), and the heat treatment equipment (1) has a fan (13) installed on the side. The fan (13) is used to dissipate heat from the rotating drum (602).

7. The high-strength stud heat treatment apparatus as described in claim 6, characterized in that: It also includes a converging frame (14), which is installed on the fan (13). The converging frame (14) is used to gather the air blown out by the fan (13) and send it into the rotating drum (602).

8. The high-strength stud heat treatment apparatus as described in claim 1, characterized in that: It also includes heat dissipation copper fins (15), which are spaced apart inside the rotating drum (602) and are used to dissipate heat from the rotating drum (602).

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