A pusher for quenching and tempering heat treatment tempering furnace

Abstract

The present invention relates to the technical field of feeding a tempering furnace, and specifically to a pusher for a tempering furnace for quenching and tempering heat treatment, comprising a tempering furnace body and a frame, an arranging mechanism, a pushing mechanism, and a vertical feeding mechanism, wherein the inner wall of the tempering furnace body is fixedly connected with a tempering furnace conveyor belt assembly, the inner wall of the frame is provided with a feeding belt, and the outer wall of the frame is fixedly connected with a height baffle. The present invention uses an arranging mechanism to prevent workpieces from being laid flat on the tempering furnace conveyor belt assembly, occupying the space inside the tempering furnace body and causing too little processing capacity, while also preventing the stacking and uneven distribution of workpieces from causing the quality of workpiece tempering to deteriorate. Regardless of the form and quantity of the workpieces falling from the quenching furnace, it is ensured that there are sufficient workpieces between each two hollow limit plates 1 and the connecting rod 1 to be transported into the tempering furnace body in a vertical state, without any waste.

Description

Technical Field

[0001] The invention relates to the technical field of tempering furnace feeding, in particular to a pusher for a tempering heat treatment tempering furnace. Background Art

[0002] A tempering furnace is a device used to temper metal materials after quenching. In order to improve production efficiency, it is usually placed after the quenching furnace.

[0003] The patent with publication number: CN108546816A discloses a feeding limit device of a mesh belt type tempering furnace, including a furnace door, a limit baffle, an adjusting bolt, a mesh belt, and a tempering workpiece channel. The tempering workpiece channel is located below the furnace door, a mesh belt is arranged at the bottom of the tempering workpiece channel, and a limit baffle is arranged on one side of the furnace door above the tempering workpiece channel, and the limit baffle is installed by adjusting bolts.

[0004] However, there are still some shortcomings in the actual use of the above: 1. Although the thickness of the tempering material of the workpiece is consistent, there is often residual water on the surface of the quenching material before the quenching material enters the tempering furnace. If the metal material enters the furnace for tempering with residual water, it will not only increase the metal oxidation rate, but also affect the surface quality of the product; 2. The flat laying method will cause uneven heating on the upper and lower surfaces of the workpiece, and the flat laying method occupies a lot of space in the tempering furnace, resulting in a small number of workpieces being processed. Therefore, a pusher for a quenching and tempering heat treatment tempering furnace is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a pusher for a tempering heat treatment tempering furnace.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A pusher for a tempering furnace for quenching and tempering heat treatment, comprising a tempering furnace body and a frame, wherein the inner wall of the tempering furnace body is fixedly connected with a tempering furnace conveyor belt assembly, the inner wall of the frame is provided with a feeding belt, the inner walls at both ends of the feeding belt are movably connected with a transmission shaft, the outer wall of the frame is fixedly connected with a motor, the motor is fixedly connected with one of the transmission shafts, the outer wall of the feeding belt is fixedly connected with a plurality of evenly distributed limit baffles, the outer wall of the frame is fixedly connected with a height baffle, and further comprises:

[0008] An arranging mechanism is used to arrange the workpieces conveyed by the feeding belt and change the workpieces from horizontal to vertical, and the arranging mechanism is installed on the frame;

[0009] The pusher mechanism is used to cooperate with the arranging mechanism to arrange the vertical workpieces, so as to facilitate the separation of the workpieces and control the drying;

[0010] And a vertical loading mechanism is used to arrange the workpieces vertically in sequence on the tempering furnace conveyor belt assembly to save space in the tempering furnace body. The vertical loading mechanism is installed on the frame.

[0011] Preferably, the inner wall of the frame is fixedly connected to a fixed bottom plate, the outer wall of the fixed bottom plate is fixedly connected to a side plate, the side plate and the inner wall of the frame are slidably connected to a plurality of limiting inclined plates, the outer wall of each of the limiting inclined plates is fixedly connected to two third springs, the outer wall of the fixed bottom plate is fixedly connected to a connecting rod 1, and the outer wall of the connecting rod 1 is fixedly connected to a second rack.

[0012] Preferably, the arrangement mechanism includes a telescopic rod, a connecting block 1, a first gear, a first rotating ring and a supporting frame, the telescopic rod is fixedly connected to the outer wall of the frame, the telescopic rod is fixedly connected to the frame, the connecting block 1 is fixedly connected to the telescopic rod, the first gear is rotatably connected to the connecting block 1, the first rotating ring is fixedly connected to the first gear, and the supporting frame is fixedly connected to the first rotating ring.

[0013] Preferably, the arrangement mechanism also includes a fixed frame 1, a limiting slide, a sliding block, a second rotating ring, a pushing frame and a step limiting seat, the fixed frame 1 is fixedly connected to the frame body, the limiting slide is fixedly connected to the fixed frame 1, the sliding block is slidably connected to the limiting slide, the second rotating ring is rotatably connected to the sliding block, the second rotating ring is fixedly connected to the pushing frame, the pushing frame is slidably connected to the supporting frame, the pushing frame is slidably connected to the step limiting seat, and the step limiting seat is fixedly connected to the supporting frame.

[0014] Preferably, the pushing mechanism comprises a sliding plate, a limiting frame and two second springs, the limiting frame is fixedly connected to the bearing frame, the sliding plate is slidably connected to the limiting frame, and the second spring is fixedly connected between the limiting frame and the sliding plate.

[0015] Preferably, the vertical loading mechanism includes an outlet, a connecting plate, an inclined supporting plate and a first shaft rod, the outlet is fixedly connected to the frame, the first shaft rod is rotatably connected to the outlet, the connecting plate is fixedly connected to the first shaft rod, and the inclined supporting plate is fixedly connected to the connecting plate.

[0016] Preferably, a feeding gear is fixedly connected to the outer wall of one end of the first shaft, and a plurality of first springs are fixedly connected between the connecting plate and the discharge port.

[0017] Preferably, the outer wall of the tempering furnace conveyor belt assembly is provided with a plurality of hollow limit plates 1 and hollow limit plates 2, and the hollow limit plates 1 and hollow limit plates 2 are symmetrically distributed, wherein the outer wall of the hollow limit plate 1 is fixedly connected with a connecting rod 3, the outer wall of the connecting rod 3 is fixedly connected with a first rack, and the outer wall of the first shaft rod is fixedly connected with a unloading gear.

[0018] Compared with the existing technology, the advantages of this pusher for tempering heat treatment tempering furnace are:

[0019] 1. Since the step limit seat is in a step shape, there are some height differences between the connected workpieces, which makes it easier to overlap them later. Then the telescopic rod is retracted, and the telescopic rod drives the first gear, the first rotating ring and the carrier to move through the limit inclined plate. When the carrier moves, the slider slides on the limit slide. When the slider slides along the slope of the limit slide, the push frame gradually extends from the step limit seat, pushing the workpieces to one piece, that is, above the limit frame, and the arrangement of several workpieces is completed at this time;

[0020] 2. Then the first gear meshes with the second rack, causing the carrier to flip 90 degrees, driving the stacked workpieces to stand vertically. At this time, the sliding plate is in close contact with the fixed bottom plate. When the telescopic rod continues to retract, the sliding plate contacts the side plate, the sliding plate retracts, and then the carrier continues to move, squeezing the stacked workpieces between the limiting inclined plates. At this time, the workpieces are vertical and separated from each other.

[0021] In summary, the present invention prevents the workpieces from being laid flat on the conveyor belt assembly of the tempering furnace through an arranging mechanism, occupying the space inside the tempering furnace body and causing too little processing capacity, and also prevents the stacking and uneven distribution of the workpieces from causing the quality of tempering of the workpieces to deteriorate. Regardless of the form and quantity of the workpieces falling from the quenching furnace, it ensures that there are sufficient workpieces between every two hollow limit plates 1 and the connecting rod 1 to be conveyed into the tempering furnace body in a vertical state without any waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 The present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0024] Figure 3 It is a schematic diagram of the structure of the present invention after removing part of the tempering furnace conveyor belt assembly;

[0025] Figure 4 The present invention Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0026] Figure 5 It is a structural schematic diagram of the side plate of the present invention;

[0027] Figure 6 The present invention Figure 5 A schematic diagram of the partially enlarged structure at C in the middle;

[0028] Figure 7It is a structural schematic diagram of the arrangement mechanism of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure inside the outlet of the present invention;

[0030] Fig. 9 The present invention Figure 8 A schematic diagram of the local enlarged structure at D in the middle;

[0031] Fig.10 It is a schematic structural diagram of the other side of the outlet of the present invention.

[0032] In the figure: 1. tempering furnace body; 2. tempering furnace conveyor belt assembly; 3. telescopic rod; 4. connecting block 1; 5. motor; 6. feeding belt; 7. limit baffle; 8. frame; 9. step limit seat; 10. first spring; 11. fixed frame 1; 12. fixed bottom plate; 13. side plate; 14. height baffle; 15. hollow limit plate 1; 16. outlet; 17. connecting rod 1; 18. sliding plate; 19. second spring; 20. limit frame; 21. first rotating Moving ring; 22, supporting frame; 23, first gear; 24, limiting inclined plate; 25, limiting slide plate; 26, sliding block; 27, second rotating ring; 28, pushing frame; 29, third spring; 30, connecting plate; 31, inclined bearing plate; 32, first shaft rod; 33, first rack; 34, connecting rod three; 35, second rack; 36, unloading gear; 37, hollow limiting plate two; 101, pushing mechanism; 202, arranging mechanism; 303, vertical feeding mechanism. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference Figure 1-Figure 10A pusher for a tempering furnace for quenching and tempering heat treatment, comprising a tempering furnace body 1 and a frame 8, the inner wall of the tempering furnace body 1 is fixedly connected with a tempering furnace conveyor belt assembly 2, the inner wall of the frame 8 is provided with a feeding belt 6, the inner walls of both ends of the feeding belt 6 are movably connected with a transmission shaft, the outer wall of the frame 8 is fixedly connected with a motor 5, the motor 5 is fixedly connected to one of the transmission shafts, the outer wall of the feeding belt 6 is fixedly connected with a plurality of uniformly distributed limit baffles 7, the outer wall of the frame 8 is fixedly connected with a height baffle 14, and also includes:

[0036] The arranging mechanism 202 is used to arrange the workpieces conveyed by the feeding belt 6 and change the workpieces from horizontal to vertical. The arranging mechanism 202 is installed on the frame 8;

[0037] The pusher mechanism 101 is used to cooperate with the arranging mechanism 202 to arrange the vertical workpieces, so as to facilitate the separation and drying of the workpieces;

[0038] And a vertical loading mechanism 303 is used to arrange the workpieces vertically in sequence on the tempering furnace conveyor belt assembly 2 to save space in the tempering furnace body 1. The vertical loading mechanism 303 is installed on the frame 8.

[0039] In this embodiment, the horizontal part of the frame 8 is placed under the quenching furnace, the horizontal part of the frame 8 is set to be in contact with the quenching water, the limit baffle 7 is set to be a leaky structure, the two limit baffles 7 are set to only accommodate the width of the workpiece but not the length of the workpiece, and the height baffle 14 is close to the limit baffle 7, so that after the two limit baffles 7 pass through the height baffle 14, no limit baffles 7 will overlap and be transmitted upward, and the motor 5 is set to rotate intermittently.

[0040] Among them, the inner wall of the frame body 8 is fixedly connected to the fixed bottom plate 12, the outer wall of the fixed bottom plate 12 is fixedly connected to the side plate 13, the side plate 13 and the inner wall of the frame body 8 are slidably connected to a plurality of limiting inclined plates 24, the outer wall of each limiting inclined plate 24 is fixedly connected to two third springs 29, the outer wall of the fixed bottom plate 12 is fixedly connected to the connecting rod 17, and the outer wall of the connecting rod 17 is fixedly connected to the second rack 35.

[0041] Among them, the arrangement mechanism 202 includes a telescopic rod 3, a connecting block 4, a first gear 23, a first rotating ring 21 and a supporting frame 22, the telescopic rod 3 is fixedly connected to the outer wall of the frame body 8, the telescopic rod 3 is fixedly connected to the frame body 8, the connecting block 4 is fixedly connected to the telescopic rod 3, the first gear 23 is rotatably connected to the connecting block 4, the first rotating ring 21 is fixedly connected to the first gear 23, and the supporting frame 22 is fixedly connected to the first rotating ring 21.

[0042] Among them, the arrangement mechanism 202 also includes a fixed frame 11, a limiting slide 25, a slider 26, a second rotating ring 27, a pushing frame 28 and a step limiting seat 9. The fixed frame 11 is fixedly connected to the frame body 8, the limiting slide 25 is fixedly connected to the fixed frame 11, the slider 26 is slidably connected to the limiting slide 25, the second rotating ring 27 is rotatably connected to the slider 26, the second rotating ring 27 is fixedly connected to the pushing frame 28, the pushing frame 28 is slidably connected to the supporting frame 22, the pushing frame 28 is slidably connected to the step limiting seat 9, and the step limiting seat 9 is fixedly connected to the supporting frame 22.

[0043] In this embodiment, there is a row of workpieces between the two limit baffles 7, the number of which is indefinite and may be any number from one to four. When the workpieces move along the inclined portion of the feeding belt 6, moisture on the outer wall flows down through the inclined portion, and a row of workpieces are transported by the motor 5 and fall onto the step limit seat 9. Since the step limit seat 9 is stepped, there are some height differences between the connected workpieces, which makes it easier to overlap them later. Then the telescopic rod 3 is retracted, and the telescopic rod 3 drives the first gear 23, the first rotating ring 21 and the carrier frame 22 to move through the limit inclined plate 24. When the carrier frame 22 moves, it slides on the limit slide 25 through the slider 26. When the slider 26 slides along the slope of the limit slide 25, the push frame 28 gradually extends from the step limit seat 9, pushing the workpieces to one piece, that is, above the limit frame 20. At this time, the sorting of several workpieces is completed.

[0044] The pusher mechanism 101 includes a sliding plate 18 , a limiting frame 20 and two second springs 19 . The limiting frame 20 is fixedly connected to the support frame 22 . The sliding plate 18 is slidably connected to the limiting frame 20 . The second spring 19 is fixedly connected between the limiting frame 20 and the sliding plate 18 .

[0045] In this embodiment, the first gear 23 then engages with the second rack 35, causing the carrier 22 to flip ninety degrees, driving the stacked workpieces to be vertical. At this time, the sliding plate 18 is in close contact with the fixed bottom plate 12. When the telescopic rod 3 continues to retract, the sliding plate 18 contacts the side plate 13, the sliding plate 18 retracts, and then the carrier 22 continues to move, squeezing the stacked workpieces between the limiting inclined plates 24. At this time, the workpieces are vertical and separated from each other. An additional drying mechanism can be set on the top to promote the drying of quenched water on the outer wall of the workpiece.

[0046] Among them, the vertical feeding mechanism 303 includes an outlet 16, a connecting plate 30, an inclined supporting plate 31 and a first shaft rod 32. The outlet 16 is fixedly connected to the frame 8, the first shaft rod 32 is rotatably connected to the outlet 16, the connecting plate 30 is fixedly connected to the first shaft rod 32, and the inclined supporting plate 31 is fixedly connected to the connecting plate 30.

[0047] A feeding gear 36 is fixedly connected to the outer wall of one end of the first shaft rod 32 , and a plurality of first springs 10 are fixedly connected between the connecting plate 30 and the discharge port 16 .

[0048] Among them, the outer wall of the tempering furnace conveyor belt assembly 2 is provided with a plurality of hollow limit plates 15 and hollow limit plates 2 37, and the hollow limit plates 15 and the hollow limit plates 2 37 are symmetrically distributed, wherein the outer wall of the hollow limit plate 15 is fixedly connected with a connecting rod 3 34, the outer wall of the connecting rod 3 34 is fixedly connected with a first rack 33, and the outer wall of the first shaft rod 32 is fixedly connected with a unloading gear 36.

[0049] When the workpieces are stacked sufficiently, the workpiece farthest from the feeding belt 6 will be pushed down, so that the workpieces fall into the discharge port 16 and slide along the inclined support plate 31. The workpieces that are withdrawn are arranged together. The gap in the discharge port 16 is set to accommodate only one workpiece, and the discharge port 16 is set to accommodate four workpieces. At this time, the tempering furnace conveyor belt assembly 2 drives the hollow limit plate 15 to move, so that the first rack 33 drives the first shaft rod 32 to rotate, which can drive the inclined support plate 31 to flip, so that the workpieces fall between the hollow limit plate 15 and the hollow limit plate 2 37, so as to avoid the workpieces being laid flat on the tempering furnace conveyor belt assembly 2, occupying the space inside the tempering furnace body 1 and causing too little processing capacity, and also avoid the stacking and uneven distribution of the workpieces causing the quality of the workpiece tempering to deteriorate, and ensure that there are enough workpieces between every two hollow limit plates 15 and the connecting rod 17 to be conveyed to the tempering furnace body 1.

[0050] The specific working principle and method of use of the present invention are explained in detail below: when in use, the horizontal part of the frame 8 is placed under the quenching furnace, the horizontal part of the frame 8 is set to be in contact with the quenching water, the limit baffle 7 is set to be a leaky structure, the two limit baffles 7 are set to only accommodate the width of the workpiece but not the length of the workpiece, and the height baffle 14 is close to the limit baffle 7, so that after the two limit baffles 7 pass through the height baffle 14, no limit baffles 7 will overlap and be transmitted upward, and the motor 5 is set to rotate intermittently.

[0051] There is a row of workpieces between the two limit baffles 7, the number of which is indefinite and may be any number from one to four. When the workpieces move along the inclined portion of the feeding belt 6, moisture on the outer wall flows down through the inclined portion, and a row of workpieces are transported by the motor 5 and fall on the step limit seat 9. Since the step limit seat 9 is stepped, there are some height differences between the connected workpieces, which makes it easier to overlap them later. Then the telescopic rod 3 is retracted, and the telescopic rod 3 drives the first gear 23, the first rotating ring 21 and the carrier frame 22 to move through the limit inclined plate 24. When the carrier frame 22 moves, it slides on the limit slide 25 through the slider 26. When the slider 26 slides along the slope of the limit slide 25, the push frame 28 gradually extends from the step limit seat 9, pushing the workpieces to one piece, that is, above the limit frame 20. At this time, the sorting of several workpieces is completed.

[0052] Subsequently, the first gear 23 meshes with the second rack 35, causing the carrier 22 to flip ninety degrees, driving the stacked workpieces to be vertical. At this time, the sliding plate 18 is in close contact with the fixed bottom plate 12. When the telescopic rod 3 continues to retract, the sliding plate 18 contacts the side plate 13, the sliding plate 18 retracts, and then the carrier 22 continues to move, squeezing the stacked workpieces between the limiting inclined plates 24. At this time, the workpieces are vertical and separated from each other. An additional drying mechanism can be set on the top to promote the drying of quenched water on the outer wall of the workpiece.

[0053] The workpieces are then pushed out of the retractable rod 3 to receive the next row of workpieces. When the workpieces are stacked sufficiently, the workpiece farthest from the feeding belt 6 will be pushed down, so that the workpieces fall into the discharge port 16 and slide along the inclined bearing plate 31. The workpieces that are withdrawn are arranged together. The gap in the discharge port 16 is set to accommodate only one workpiece, and the discharge port 16 is set to accommodate four workpieces. At this time, the tempering furnace conveyor belt assembly 2 drives the hollow limit plate 15 to move, so that the first rack 33 drives the first shaft rod 32 to rotate, which can drive the inclined bearing plate 31 to flip, so that the workpieces fall between the hollow limit plate 15 and the hollow limit plate 2 37, so as to avoid the workpieces being laid flat on the tempering furnace conveyor belt assembly 2, occupying the space inside the tempering furnace body 1 and causing too little processing capacity, and also to avoid the stacking and uneven distribution of workpieces causing the quality of workpiece tempering to deteriorate, and to ensure that there are enough workpieces between every two hollow limit plates 15 and the connecting rod 17 to be conveyed to the tempering furnace body 1.

[0054] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pusher for a tempering furnace for quenching and tempering heat treatment, comprising a tempering furnace body (1) and a frame (8), wherein the inner wall of the tempering furnace body (1) is fixedly connected to a tempering furnace conveyor belt assembly (2), the inner wall of the frame (8) is provided with a feeding belt (6), the inner walls at both ends of the feeding belt (6) are movably connected to a transmission shaft, the outer wall of the frame (8) is fixedly connected to a motor (5), the motor (5) is fixedly connected to one of the transmission shafts, the outer wall of the feeding belt (6) is fixedly connected to a plurality of uniformly distributed limit baffles (7), the outer wall of the frame (8) is fixedly connected to a height baffle (14), characterized in that: Also includes: An arranging mechanism (202) is used to arrange the workpieces conveyed by the feeding belt (6) and change the workpieces from horizontal to vertical, and the arranging mechanism (202) is installed on the frame (8); The pusher mechanism (101) is used to cooperate with the arranging mechanism (202) to arrange the vertical workpieces, so as to facilitate the separation of the workpieces and the control of drying; And a vertical loading mechanism (303) is used to arrange the workpieces vertically in sequence on the tempering furnace conveyor belt assembly (2) to save space in the tempering furnace body (1); the vertical loading mechanism (303) is installed on the frame (8).

2. The pusher for a quenching and tempering furnace according to claim 1, characterized in that: The inner wall of the frame body (8) is fixedly connected to a fixed base plate (12), the outer wall of the fixed base plate (12) is fixedly connected to a side plate (13), the side plate (13) and the inner wall of the frame body (8) are slidably connected to a plurality of limiting inclined plates (24), the outer wall of each limiting inclined plate (24) is fixedly connected to two third springs (29), the outer wall of the fixed base plate (12) is fixedly connected to a connecting rod 1 (17), and the outer wall of the connecting rod 1 (17) is fixedly connected to a second rack (35).

3. The pusher for a quenching and tempering furnace according to claim 2, characterized in that: The arrangement mechanism (202) comprises a telescopic rod (3), a connecting block (4), a first gear (23), a first rotating ring (21) and a supporting frame (22); the telescopic rod (3) is fixedly connected to the outer wall of the frame (8); the telescopic rod (3) is fixedly connected to the frame (8); the connecting block (4) is fixedly connected to the telescopic rod (3); the first gear (23) is rotatably connected to the connecting block (4); the first rotating ring (21) is fixedly connected to the first gear (23); and the supporting frame (22) is fixedly connected to the first rotating ring (21).

4. The pusher for a quenching and tempering furnace according to claim 3, characterized in that: The arrangement mechanism (202) further comprises a fixed frame (11), a limiting slide (25), a slider (26), a second rotating ring (27), a push frame (28) and a step limiting seat (9), wherein the fixed frame (11) is fixedly connected to the frame body (8), the limiting slide (25) is fixedly connected to the fixed frame (11), the slider (26) is slidably connected to the limiting slide (25), the second rotating ring (27) is rotatably connected to the slider (26), the second rotating ring (27) is fixedly connected to the push frame (28), the push frame (28) is slidably connected to the supporting frame (22), the push frame (28) is slidably connected to the step limiting seat (9), and the step limiting seat (9) is fixedly connected to the supporting frame (22).

5. The pusher for a quenching and tempering furnace according to claim 4, characterized in that: The pusher mechanism (101) comprises a sliding plate (18), a limiting frame (20) and two second springs (19); the limiting frame (20) is fixedly connected to the bearing frame (22); the sliding plate (18) is slidably connected to the limiting frame (20); and the second spring (19) is fixedly connected between the limiting frame (20) and the sliding plate (18).

6. The pusher for a quenching and tempering furnace according to claim 5, characterized in that: The vertical feeding mechanism (303) comprises an outlet (16), a connecting plate (30), an inclined bearing plate (31) and a first shaft rod (32); the outlet (16) is fixedly connected to the frame (8); the first shaft rod (32) is rotatably connected to the outlet (16); the connecting plate (30) is fixedly connected to the first shaft rod (32); and the inclined bearing plate (31) is fixedly connected to the connecting plate (30).

7. The pusher for a quenching and tempering furnace according to claim 6, characterized in that: A feeding gear (36) is fixedly connected to the outer wall of one end of the first shaft rod (32), and a plurality of first springs (10) are fixedly connected between the connecting plate (30) and the discharge port (16).

8. The pusher for a quenching and tempering furnace according to claim 7, characterized in that: The outer wall of the tempering furnace conveyor belt assembly (2) is provided with a plurality of hollow limit plates (15) and hollow limit plates (37), and the hollow limit plates (15) and hollow limit plates (37) are symmetrically distributed, wherein the outer wall of the hollow limit plate (15) is fixedly connected to a connecting rod (34), the outer wall of the connecting rod (34) is fixedly connected to a first rack (33), and the outer wall of the first shaft rod (32) is fixedly connected to a feeding gear (36).

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