Continuous heat treatment device and method

Abstract

The invention discloses a continuous heat treatment device and method, and relates to the technical field of heat treatment device.The continuous heat treatment device comprises a machining table and a placement rack, a feeding mechanism is fixedly connected to the machining table, a plurality of electric heating mechanisms are fixedly installed on the machining table, and a plurality of guide plates are fixedly installed on the machining table; the multiple electric heating mechanisms and the multiple guide plates are alternately placed, discharging pipes are fixedly connected to the bottoms of the guide plates in an inserted mode, and the ends of the discharging pipes penetrate through the machining table and stretch out of the machining table. The driving part controls the moving part and the control plate to move up and down, then the control plate drives the knocking rod to do reciprocating motion so as to continuously knock a workpiece through the knocking rod, meanwhile, the knocking rod drives the toothed plate to move, then the toothed plate drives the sweeping ring to rotate, and therefore the surface of the workpiece is swept through the sweeping ring; therefore, the possibility that the impurities on the surface of the workpiece influence subsequent heat treatment is reduced.

Description

Technical Field

[0001] This invention relates to the field of heat treatment equipment technology, and in particular to a continuous heat treatment apparatus and method. Background Technology

[0002] Metal heat treatment is a processing method that modifies the microstructure of metal workpieces by heating, holding, and cooling them to regulate their properties. It is widely used in fields such as machinery manufacturing and tool processing, and can improve hardness, strength, and corrosion resistance. Among them, the lead screw heat treatment device is a special equipment that uses high-frequency induction heating technology to quench the surface of the lead screw, which can improve its hardness, wear resistance, and fatigue strength.

[0003] When existing heat treatment equipment heats the lead screw, hard Fe3O4 or Fe2O3 particles are formed on its surface at high temperatures. These impurities easily adhere to the lead screw surface, and when the lead screw undergoes subsequent heat treatment, these impurities can easily affect the heat treatment effect. Summary of the Invention

[0004] To address the issue that when the aforementioned heat treatment device heats the lead screw, hard Fe3O4 or Fe2O3 particles form on its surface at high temperatures, these impurities easily adhere to the lead screw surface, potentially affecting the heat treatment effect during subsequent heat treatment.

[0005] This invention provides a continuous heat treatment apparatus and method, employing the following technical solution: A continuous heat treatment apparatus includes a processing table and a placement rack. A feeding mechanism is fixedly connected to the processing table, and several electric heating mechanisms and guide plates are fixedly installed on the processing table. The electric heating mechanisms and guide plates are alternately placed. A discharge pipe is fixedly inserted into the bottom of the guide plate, and the end of the discharge pipe passes through the processing table and extends out of the processing table. A movable component is movably inserted into the bottom of the guide plate. A driving component is installed inside the processing table to control the movement of the movable component. A control plate is fixedly connected to the side wall of the movable component. A striking rod is movably inserted into both ends of the guide plate. One end of the striking rod extends out of the guide plate and slides against the inner wall of the control plate. The other end of the striking rod is inserted into the guide plate to strike the workpiece. A cleaning ring is rotatably inserted into the guide plate. A toothed plate is fixedly connected to the side wall of the striking rod. The toothed plate meshes with the cleaning ring to control the rotation of the cleaning ring. The cleaning ring is used to clean the surface of the workpiece.

[0006] Optionally, in the above-mentioned continuous heat treatment device, the feeding mechanism includes a base plate and a plurality of first motors. The base plate is fixedly installed on the top surface of the processing table, and the plurality of first motors are fixedly installed on the top surface of the base plate. The rotating shafts of the plurality of first motors are all fixedly sleeved with first guide rollers, and the electric heating mechanism and the guide plate are alternately placed between the plurality of first motors.

[0007] Optionally, in the above-mentioned continuous heat treatment device, the electric heating mechanism includes a controller and an electric heating ring. The controller is fixedly installed on the top surface of the processing table, and the electric heating ring is fixedly installed on the side wall of the controller. The controller is used to control the start and stop of the electric heating ring, and the electric heating ring is spiral in shape.

[0008] Optionally, in the above-mentioned continuous heat treatment device, the guide plate has a through hole, the through hole and the electric heating ring are on the same axis, the bottom of the guide plate has a collection groove, the top of the collection groove is connected to the inner wall of the through hole, the inner wall of the through hole has two symmetrical mounting grooves, and the bottom of the guide plate is chamfered.

[0009] Optionally, in the above-mentioned continuous heat treatment device, a collection box is provided on the side wall of the processing table, the discharge pipe is inclinedly inserted into the side wall of the guide plate, one end of the discharge pipe is inserted into the guide plate and communicates with the inner wall of the collection tank, and the other end of the discharge pipe passes through the processing table and is located above the collection box.

[0010] Optionally, in the above-mentioned continuous heat treatment device, the movable component includes a vertical rod and a semi-circular block. The upper end of the vertical rod is inserted into the collection trough and fixedly connected to a shaking plate. The shaking plate is inclinedly arranged in the collection trough. The lower end of the vertical rod is fixedly connected to the semi-circular block. The driving component includes a second motor and a rotating rod. The second motor is fixedly installed on the inner side wall of the processing table. One end of the rotating rod is rotatably inserted into the inner side wall of the processing table. The other end of the rotating rod is fixedly connected to the rotating shaft of the second motor. A number of cams corresponding to the movable component are fixedly sleeved on the rotating rod. The cams slide against the surface of the semi-circular block.

[0011] Optionally, in the above-mentioned continuous heat treatment device, the control plate includes an L-shaped plate and a U-shaped plate. One end of the L-shaped plate is fixedly connected to the side wall of the vertical rod, and the other end of the L-shaped plate is fixedly connected to the bottom of the U-shaped plate. The U-shaped plate is movably sleeved on the top of the guide plate. The L-shaped plate is connected to the bottom surface of the guide plate by a first spring. The left and right sides of the inner wall of the U-shaped plate are provided with wavy grooves.

[0012] Optionally, in the above-mentioned continuous heat treatment device, the striking rod includes a movable rod and a striking ball. The movable rod is movably inserted into the mounting groove. One end of the movable rod extends out of the guide plate and slides against the inner wall of the corrugated groove. The other end of the movable rod is inserted into the through hole and fixedly connected to the striking ball. The striking ball is connected to the inner wall of the mounting groove by a second spring.

[0013] Optionally, in the above-mentioned continuous heat treatment device, the cleaning ring includes a rotating ring and a gear. The rotating ring is rotatably inserted into a through hole, and the gear is fixedly sleeved on the outer wall of the rotating ring. A plurality of cleaning brushes are fixedly connected to one end of the rotating ring facing the inside of the through hole. The gear meshes with a toothed plate. A connecting plate is fixedly connected to the end of the toothed plate. The end of the connecting plate away from the toothed plate is fixedly connected to the side wall of the striking rod. A movable groove for moving the toothed plate and the connecting plate is provided in the guide plate.

[0014] Another technical solution proposed by this invention: a continuous heat treatment method, comprising the following steps: S101: First, the first motor on the feeding mechanism drives the first guide roller to rotate, thereby moving the workpiece through the electric heating mechanism and guide plate into the placement rack. S102: When the workpiece passes through the electric heating mechanism, the electric heating mechanism facilitates uniform heating of the workpiece. The second motor drives the rotating rod and cam to rotate, and then the cam controls the movable rod and control plate to move. When the control plate moves, it controls the striking rod to reciprocate. The striking rod then continuously strikes the workpiece to shake off the impurities attached to its surface into the collection groove of the guide plate. When the striking rod reciprocates, it drives the toothed plate to move synchronously. At this time, the toothed plate drives the cleaning ring to rotate, thereby cleaning the impurities shaken off the workpiece surface. S103: When the movable rod moves, it continuously transports the impurities in the collection tank to the discharge pipe, and then transports the impurities to the collection box for collection through the discharge pipe; S104: After the workpiece has undergone heat treatment, it is moved to the placement rack, and then the heat-treated workpiece is stacked on the placement rack.

[0015] In summary, the present invention has at least one of the following beneficial effects: The moving parts and control plate are controlled by the driving component to move up and down. Then the control plate drives the striking rod to reciprocate, so that the striking rod can continuously strike the workpiece. At the same time, the striking rod drives the toothed plate to move, and then the toothed plate drives the cleaning ring to rotate. The cleaning ring cleans the surface of the workpiece to reduce the impurities attached to the surface of the workpiece, thereby reducing the possibility that the impurities on the surface of the workpiece will affect its subsequent heat treatment. The guide plate facilitates the collection of impurities swept off the workpiece and discharges them through the discharge pipe, reducing the possibility of impurities scattering everywhere, thus making impurity cleaning easier. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 3 This is a partial three-dimensional cross-sectional view of the processing table of the present invention; Figure 4 This is a partial three-dimensional cross-sectional view of the movable part of the present invention; Figure 5 This is a partial three-dimensional cross-sectional view of the guide plate of the present invention; Figure 6 This is a partial three-dimensional structural schematic diagram of the cleaning ring of the present invention.

[0017] In the diagram: 1. Processing table; 2. Placement rack; 3. Feeding mechanism; 31. Base plate; 32. First motor; 33. First guide roller; 4. Electric heating mechanism; 41. Controller; 42. Electric heating ring; 5. Guide plate; 51. Through hole; 52. Collection trough; 53. Mounting trough; 54. Movable trough; 6. Discharge pipe; 7. Movable part; 71. Vertical rod; 72. Semicircular block; 73. Shaking plate; 8. Driving component; 81. Second motor; 82. Rotating rod; 83. Cam; 9. Control board; 91. L-shaped plate; 92. U-shaped plate; 93. First spring; 94. Wave-shaped groove; 10. Striking rod; 101. Movable rod; 102. Striking ball; 103. Second spring; 11. Cleaning ring; 111. Rotating ring; 112. Gear; 113. Cleaning brush; 12. Toothed plate; 121. Connecting plate; 13. Collection box. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-6 The present invention will be described in further detail below.

[0019] Please refer to the attached diagram in the instruction manual. Figures 1-6 The present invention provides an embodiment of a continuous heat treatment device, including a processing table 1 and a placement rack 2. A feeding mechanism 3 is fixedly connected to the processing table 1. It should be noted that the placement rack 2 is also provided with a mechanism for conveying workpieces corresponding to the placement rack 2, so that the workpieces can be smoothly moved to the top of the placement rack 2, so that the operator can stack the workpieces on the placement rack 2.

[0020] Several electric heating mechanisms 4 are fixedly installed on the processing table 1. Each electric heating mechanism 4 includes a controller 41 and an electric heating ring 42. The controller 41 is fixedly installed on the top surface of the processing table 1, and the electric heating ring 42 is fixedly installed on the side wall of the controller 41. The controller 41 is used to control the start and stop of the electric heating ring 42. The electric heating ring 42 is spiral in shape. The controller 41 facilitates the start and stop of the electric heating ring 42, and the electric heating ring 42 facilitates continuous heating of the workpiece to achieve heat treatment of the workpiece.

[0021] Several guide plates 5 are fixedly installed on the processing table 1. Several electric heating mechanisms 4 are alternately placed with several guide plates 5. The feeding mechanism 3 includes a base plate 31 and several first motors 32. The base plate 31 is fixedly set on the top surface of the processing table 1. Several first motors 32 are fixedly installed on the top surface of the base plate 31. The rotating shafts of several first motors 32 are all fixedly sleeved with first guide rollers 33. The electric heating mechanisms 4 and guide plates 5 are alternately placed between several first motors 32. The base plate 31 facilitates the installation of several first motors 32. The first motors 32 facilitate the rotation of the first guide rollers 33. As the first guide rollers 33 rotate, the workpieces are continuously conveyed.

[0022] It should be noted that several first motors 32 are controlled uniformly through a control system, which uses existing technology.

[0023] A discharge pipe 6 is fixedly inserted into the bottom of the guide plate 5. A through hole 51 is provided on the guide plate 5. The through hole 51 is on the same axis as the electric heating ring 42. A collection groove 52 is provided in the inner bottom of the guide plate 5. The top of the collection groove 52 is connected to the inner wall of the through hole 51. Two mounting grooves 53 are symmetrically provided in the inner wall of the through hole 51. The bottom of the guide plate 5 is chamfered. The workpiece can pass through the guide plate 5 for subsequent processing through the through hole 51. The collection groove 52 is used to collect the impurities cleaned from the workpiece. The chamfering of the bottom of the guide plate 5 allows the impurities to slide automatically toward the discharge pipe 6.

[0024] The end of the discharge pipe 6 passes through the processing table 1 and extends out of the processing table 1. A collection box 13 is provided on the side wall of the processing table 1. The discharge pipe 6 is inclinedly inserted into the side wall of the guide plate 5. One end of the discharge pipe 6 is inserted into the guide plate 5 and communicates with the inner wall of the collection trough 52. The other end of the discharge pipe 6 passes through the processing table 1 and is located above the collection box 13. The discharge pipe 6 facilitates the discharge of impurities, and the collection box 13 collects the impurities.

[0025] A movable component 7 is movably inserted into the bottom of the guide plate 5. A driving component 8 is installed inside the processing table 1 to control the movement of the movable component 7. The movable component 7 includes a vertical rod 71 and a semi-circular block 72. The upper end of the vertical rod 71 is inserted into the collection groove 52 and fixedly connected to a shaking plate 73. The shaking plate 73 is inclinedly arranged in the collection groove 52. The lower end of the vertical rod 71 is fixedly connected to the semi-circular block 72. The driving component 8 includes a second motor 81 and a rotating rod 82. The second motor 81 is fixedly installed on the inner side wall of the processing table 1, and one end of the rotating rod 82 is connected to the processing table 1. The inner wall of the rotating rod 82 is rotatably inserted, and the other end of the rotating rod 82 is fixedly connected to the rotating shaft of the second motor 81. The rotating rod 82 is fixedly fitted with cams 83 in number corresponding to the number of movable parts 7. The cams 83 slide against the surface of the semicircular block 72. The second motor 81 can easily drive the rotating rod 82 and the cams 83 to rotate. As the cams 83 rotate, they control the semicircular block 72 and the vertical rod 71 to move up and down. Then, the vertical rod 71 drives the shaking plate 73 to shake up and down, so as to continuously shake the impurities in the collection tank 52 into the discharge pipe 6 for discharge.

[0026] A control plate 9 is fixedly connected to the side wall of the movable part 7. A striking rod 10 is movably inserted into both the left and right ends of the guide plate 5. The control plate 9 includes an L-shaped plate 91 and a U-shaped plate 92. One end of the L-shaped plate 91 is fixedly connected to the side wall of the vertical rod 71, and the other end of the L-shaped plate 91 is fixedly connected to the bottom of the U-shaped plate 92. The U-shaped plate 92 is movably sleeved on the top of the guide plate 5. The L-shaped plate 91 is connected to the bottom surface of the guide plate 5 by a first spring 93. The left and right sides of the inner wall of the U-shaped plate 92 are provided with wave-shaped grooves 94. The first spring 93 facilitates pushing the L-shaped plate 91, the U-shaped plate 92, and the vertical rod 71 downward, so that the semicircular block 72 always abuts against the outer wall of the cam 83. Thus, when the cam 83 rotates, it can control the semicircular block 72, the vertical rod 71, the L-shaped plate 91, and the U-shaped plate 92 to move up and down. When the U-shaped plate 92 moves, the wave-shaped groove 94 facilitates controlling the striking rod 10 to move back and forth.

[0027] One end of the striking rod 10 extends out of the guide plate 5 and slides against the inner wall of the control plate 9. The other end of the striking rod 10 is inserted into the guide plate 5 for striking the workpiece. The striking rod 10 includes a movable rod 101 and a striking ball 102. The movable rod 101 is movably inserted into the mounting groove 53. One end of the movable rod 101 extends out of the guide plate 5 and slides against the inner wall of the corrugated groove 94. The other end of the movable rod 101 is inserted into the through hole 51 and fixedly connected to the striking ball 102. The striking ball 102... The second spring 103 is connected to the inner wall of the mounting groove 53. The second spring 103 facilitates the movement of the striking ball 102 and the movable rod 101, so that the end of the movable rod 101 always abuts against the inner wall of the corrugated groove 94. When the U-shaped plate 92 moves, the movable rod 101 slides along the inner wall of the corrugated groove 94, so that the movable rod 101 drives the striking ball 102 to reciprocate, thereby continuously striking the workpiece and shaking off the impurities on its surface.

[0028] A cleaning ring 11 is rotatably inserted into the guide plate 5, and a toothed plate 12 is fixedly connected to the side wall of the striking rod 10. The toothed plate 12 meshes with the cleaning ring 11 to control the rotation of the cleaning ring 11. The cleaning ring 11 is used to clean the surface of the workpiece.

[0029] The cleaning ring 11 includes a rotating ring 111 and a gear 112. The rotating ring 111 is rotatably inserted into the through hole 51, and the gear 112 is fixedly sleeved on the outer wall of the rotating ring 111. Several cleaning brushes 113 are fixedly connected to one end of the rotating ring 111 facing the inside of the through hole 51. The gear 112 meshes with the toothed plate 12. A connecting plate 121 is fixedly connected to the end of the toothed plate 12. The end of the connecting plate 121 away from the toothed plate 12 is fixedly connected to the side wall of the striking rod 10. The guide plate 5 has a movable groove 54 for the toothed plate 12 and the connecting plate 121 to move. When the striking rod 10 moves, it drives the toothed plate 12 to move synchronously. Then, the toothed plate 12 drives the gear 112 and the rotating ring 111 to rotate. Then, the rotating ring 111 drives the cleaning brushes 113 to rotate, so that the cleaning brushes 113 can easily clean the impurities on the surface of the workpiece.

[0030] In summary: First, the workpiece is continuously conveyed by the feeding mechanism 3. When the workpiece passes through the electric heating mechanism 4, it undergoes heat treatment. When the workpiece passes through the guide plate 5, the moving part 7 and the control plate 9 are moved up and down by the driving part 8. Then, the control plate 9 drives the striking rod 10 to reciprocate, so that the workpiece is continuously struck by the striking rod 10. At the same time, the striking rod 10 drives the toothed plate 12 to move, and then the toothed plate 12 drives the cleaning ring 11 to rotate, so that the surface of the workpiece is cleaned by the cleaning ring 11 to reduce the impurities attached to the surface of the workpiece, thereby reducing the possibility that the impurities on the surface of the workpiece will affect its subsequent heat treatment. The guide plate 5 facilitates the collection of the impurities swept off the workpiece, and the impurities are discharged through the discharge pipe 6 to reduce the possibility of impurities scattering everywhere.

[0031] To better demonstrate a continuous heat treatment apparatus, this embodiment proposes a continuous heat treatment method, including the following steps: Step 1: First, the first motor 32 on the feeding mechanism 3 drives the first guide roller 33 to rotate, thereby moving the workpiece through the electric heating mechanism 4 and the guide plate 5 into the placement rack 2. Step 2: When the workpiece passes through the electric heating mechanism 4, the electric heating mechanism 4 facilitates uniform heating of the workpiece. The second motor 81 drives the rotating rod 82 and cam 83 to rotate. Then, the cam 83 controls the movement of the movable rod 101 and the control plate 9. Thus, when the control plate 9 moves, it controls the striking rod 10 to reciprocate. The striking rod 10 then continuously strikes the workpiece to shake off the impurities attached to its surface into the collection groove 52 of the guide plate 5. When the striking rod 10 reciprocates, it drives the toothed plate 12 to move synchronously. At this time, the toothed plate 12 drives the cleaning ring 11 to rotate, thereby cleaning the impurities shaken off the workpiece surface through the cleaning ring 11. Step 3: When the movable rod 101 moves, it continuously transports the impurities in the collection tank 52 to the discharge pipe 6, and then the impurities are transported to the collection box 13 for collection through the discharge pipe 6. Step 4: After the workpiece has undergone heat treatment, it is moved to the placement rack 2, and then the heat-treated workpiece is stacked on the placement rack 2.

[0032] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A continuous heat treatment device comprising a processing table (1) and a placing rack (2), characterized in that: The feeding mechanism (3) is fixedly connected on the processing table (1), a plurality of electric heating mechanisms (4) are fixedly installed on the processing table (1), a plurality of guide plates (5) are fixedly installed on the processing table (1), the plurality of electric heating mechanisms (4) and the plurality of guide plates (5) are alternately placed, a discharge pipe (6) is fixedly inserted into the bottom of the guide plate (5), the end of the discharge pipe (6) penetrates through the processing table (1) and extends out of the processing table (1), a movable part (7) is movably inserted into the bottom of the guide plate (5), a driving part (8) is installed in the processing table (1), the driving part (8) is used for controlling the movement of the movable part (7), a control plate (9) is fixedly connected to the side wall of the movable part (7), a knocking rod (10) is movably inserted into the left and right ends of the guide plate (5), one end of the knocking rod (10) extends out of the guide plate (5) and slidably abuts against the inner wall of the control plate (9), the other end of the knocking rod (10) is inserted into the guide plate (5) and used for knocking the workpiece, a cleaning ring (11) is rotatably inserted into the guide plate (5), a toothed plate (12) is fixedly connected to the side wall of the knocking rod (10), the toothed plate (12) is engaged with the cleaning ring (11) to control the rotation of the cleaning ring (11), and the cleaning ring (11) is used for cleaning the surface of the workpiece.

2. The continuous heat treatment apparatus according to claim 1, characterized by: The feeding mechanism (3) includes a bottom plate (31) and a plurality of first motors (32), the bottom plate (31) is fixedly arranged on the top surface of the processing table (1), the plurality of first motors (32) are fixedly installed on the top surface of the bottom plate (31), and the rotating shafts of the plurality of first motors (32) are all fixedly sleeved with first material guiding rollers (33).

3. The continuous heat treatment apparatus according to claim 1, characterized by: The electric heating mechanism (4) includes a controller (41) and an electric heating ring (42), the controller (41) is fixedly installed on the top surface of the processing table (1), and the electric heating ring (42) is fixedly installed on the side wall of the controller (41); the controller (41) is used for controlling the start and stop of the electric heating ring (42); and the electric heating ring (42) is in the shape of a spiral.

4. The continuous heat treatment apparatus according to claim 3, characterized by: A through hole (51) is formed in the guide plate (5), the through hole (51) and the electric heating ring (42) are on the same axis, an inner bottom of the guide plate (5) is provided with a collecting groove (52), the top of the collecting groove (52) is in communication with the inner wall of the through hole (51), the inner wall of the through hole (51) is symmetrically provided with two installation grooves (53), and the bottom of the guide plate (5) is chamfered.

5. The continuous heat treatment apparatus according to claim 4, characterized by: A collecting box (13) is arranged on the side wall of the processing table (1), the discharge pipe (6) is obliquely inserted into the side wall of the guide plate (5), one end of the discharge pipe (6) is inserted into the guide plate (5) and in communication with the inner wall of the collecting groove (52), and the other end of the discharge pipe (6) penetrates through the processing table (1) and is located above the collecting box (13).

6. The continuous heat treatment apparatus according to claim 1, characterized by: The movable part (7) comprises a vertical rod (71) and a semicircular block (72), the upper end of the vertical rod (71) is inserted into the collecting groove (52) and is fixedly connected with a shaking plate (73), the shaking plate (73) is obliquely arranged in the collecting groove (52), and the lower end of the vertical rod (71) is fixedly connected with the semicircular block (72); The driving part (8) comprises a second motor (81) and a rotating rod (82), the second motor (81) is fixedly installed on the inner side wall of the machining table (1), one end of the rotating rod (82) is rotatably inserted into the inner side wall of the machining table (1), the other end of the rotating rod (82) is fixedly connected with the rotating shaft of the second motor (81), a plurality of cams (83) corresponding in number to the movable part (7) are fixedly sleeved on the rotating rod (82), and the cams (83) are in sliding abutment with the surface of the semicircular block (72).

7. The continuous heat treatment apparatus according to claim 4, characterized by: The control plate (9) comprises an L-shaped plate (91) and a U-shaped plate (92), one end of the L-shaped plate (91) is fixedly connected with the side wall of the vertical rod (71), the other end of the L-shaped plate (91) is fixedly connected with the bottom of the U-shaped plate (92), the U-shaped plate (92) is movably sleeved on the top of the guide plate (5), the L-shaped plate (91) is connected with the bottom surface of the guide plate (5) through the first spring (93), and wave-shaped grooves (94) are formed in the left and right sides of the inner wall of the U-shaped plate (92).

8. The continuous heat treatment apparatus according to claim 7, characterized by: The knocking rod (10) comprises a movable rod (101) and a knocking ball (102), the movable rod (101) is movably inserted into the mounting groove (53), one end of the movable rod (101) extends out of the guide plate (5) and is in sliding abutment with the inner wall of the wave-shaped groove (94), the other end of the movable rod (101) is inserted into the through hole (51) and is fixedly connected with the knocking ball (102), and the knocking ball (102) is connected with the inner wall of the mounting groove (53) through the second spring (103).

9. The continuous heat treatment apparatus according to claim 8, characterized by: The cleaning ring (11) comprises a rotating ring (111) and a gear (112), the rotating ring (111) is rotatably inserted into the through hole (51), the gear (112) is fixedly sleeved on the outer wall of the rotating ring (111), a plurality of cleaning brushes (113) are fixedly connected to one end of the rotating ring (111) towards the inside of the through hole (51), the gear (112) is engaged with the toothed plate (12), the end portion of the toothed plate (12) is fixedly connected with a connecting plate (121), one end of the connecting plate (121) away from the toothed plate (12) is fixedly connected with the side wall of the knocking rod (10), and the guide plate (5) is provided with a movable groove (54) for the movement of the toothed plate (12) and the connecting plate (121).

10. A method of continuous heat treatment comprising the continuous heat treatment apparatus according to any one of claims 1 to 9, characterized in that, The following steps are further included: S101: first, the first motor (32) on the feeding mechanism (3) drives the first material guide roller (33) to rotate, so that the workpiece is moved into the placing rack (2) through the first material guide roller (33) after passing through the electric heating mechanism (4) and the guide plate (5); S102: When the workpiece passes through the electric heating mechanism (4), the electric heating mechanism (4) is convenient for uniformly heating the workpiece, the second motor (81) drives the rotating rod (82) and the cam (83) to rotate, and then the cam (83) controls the movable rod (101) and the control plate (9) to move, so as to control the reciprocating motion of the knocking rod (10) when the control plate (9) moves, and then the knocking rod (10) continuously knocks the workpiece, so as to shake off the impurities adhered to the surface of the workpiece into the collecting groove (52) of the guide plate (5), when the knocking rod (10) reciprocates, the tooth plate (12) is driven to move synchronously, at this time, the tooth plate (12) drives the cleaning ring (11) to rotate, so as to clean the impurities scattered on the surface of the workpiece through the cleaning ring (11); S103: When the movable rod (101) moves, the impurities in the collecting groove (52) are continuously transported into the discharge pipe (6), and then the impurities are transported into the collecting box (13) through the discharge pipe (6) for collection; S104: When the workpiece is moved to the placing rack (2) after heat treatment, the workpiece after heat treatment is placed on the placing rack (2).

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