Special steel uniform heating device of industrial heat treatment furnace

Abstract

The invention discloses a special steel uniform heating device for an industrial heat treatment furnace, relates to the technical field of heating devices, solves the technical problem of rotary heating, and comprises a base, a heating furnace is fixedly mounted in the middle of the top of the base, a placement plate is slidably mounted in the base, and a rotating assembly is arranged on the placement plate; the rotating assembly comprises two mounting grooves formed in the side, close to the heating furnace, of the containing plate, a rotating disc is rotationally mounted in the mounting grooves, a plurality of vertical plates are fixedly mounted on the side, close to the heating furnace, of the rotating disc, telescopic rods are slidably mounted on the vertical plates in a penetrating mode, and clamping plates are fixedly mounted at the corresponding ends of the telescopic rods. An elastic plate is fixedly mounted on the side, close to the vertical plate, of the clamping plate, and a first motor is fixedly mounted on the side, away from the heating furnace, of the placing plate. And the special steel which is uniformly heated can be conveniently and stably clamped, and the clamping stability of the device can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heating devices, in particular to an industrial heat treatment furnace special steel uniform heating device. BACKGROUND

[0002] The industrial heat treatment furnace is a core equipment for metal material processing, through accurate temperature control to change the internal structure of the material, realizes quenching, annealing, tempering and other key processes, and the special steel is different from the traditional steel, which is mainly composed of alloy forms and has good oxidation resistance, corrosion resistance and high temperature resistance, and can be used in extremely harsh environments. It is often used in special industries, and the special steel often needs to be heated and treated in the industrial heat treatment furnace during production and processing.

[0003] However, in the process of heating the special steel in the industrial heat treatment furnace, the special steel is generally directly placed in the industrial heat treatment furnace, and the special steel is not convenient to rotate in the industrial heat treatment furnace, and it is not convenient to uniformly heat the special steel by rotating, which affects the working efficiency of the device uniform heating and the working efficiency of the device heat treatment special steel. Therefore, according to the technical defects, an industrial heat treatment furnace special steel uniform heating device is provided to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide an industrial heat treatment furnace special steel uniform heating device, which solves the following technical problems:

[0005] The special steel is generally directly placed in the industrial heat treatment furnace, and the special steel is not convenient to rotate in the industrial heat treatment furnace, and it is not convenient to uniformly heat the special steel by rotating, which affects the working efficiency of the device uniform heating and the working efficiency of the device heat treatment special steel.

[0006] The purpose of the present application can be realized by the following technical scheme:

[0007] An industrial heat treatment furnace special steel uniform heating device, comprising a base, a heating furnace is fixedly installed on the middle position of the top of the base, a placing plate is slidably installed in the base, and a rotating assembly is arranged on the placing plate;

[0008] The rotating assembly comprises two installation grooves opened on the side of the placing plate close to the heating furnace, and a rotating disc is rotatably installed in the installation groove, a plurality of vertical plates are fixedly installed on the side of the rotating disc close to the heating furnace, a telescopic rod is slidably installed through the vertical plate, a clamping plate is fixedly installed at one end of the corresponding plurality of telescopic rods, an elastic plate is fixedly installed on the side of the clamping plate close to the vertical plate, and a first motor is fixedly installed on the side of the placing plate away from the heating furnace.

[0009] As a further scheme of the present application: the output end of the first motor is slidably penetrated through the mounting slot and fixedly installed on the rotating disc, the end of the clamping plate away from the rotating disc is fixedly installed with a calibration plate, and the side of the telescopic rod away from the clamping plate is fixedly installed with a limiting plate.

[0010] As a further scheme of the present application: a circular hole is formed in the elastic plate, and the telescopic rod is slidably penetrated through and mounted in the circular hole.

[0011] As a further scheme of the present application: the side of the rotating disc close to the clamping plate is fixedly installed with an electric telescopic column, the end of the electric telescopic column away from the rotating disc is fixedly installed with a ventilation plate, the clamping plate is installed above the ventilation plate, the ventilation plate is formed with a ventilation hole, the rotating disc is fixedly installed with a support column at a position corresponding to the ventilation hole, and the support column is installed at the middle position of the rotating disc.

[0012] As a further scheme of the present application: a reciprocating assembly is arranged in the base, the reciprocating assembly comprises a moving slot formed in the base close to the heating furnace, reciprocating grooves are formed in the inner walls of the two sides of the moving slot, a reciprocating screw is rotatably installed in the reciprocating grooves, reciprocating blocks are threadedly penetrated and installed on the reciprocating screw, and a second motor is fixedly installed on one side of the base.

[0013] As a further scheme of the present application: two chain wheels are rotatably installed on the side of the base away from the second motor, a chain is meshingly installed between the two chain wheels, and the rotating shafts of the chain wheels are slidably penetrated through the reciprocating grooves and fixedly installed on the reciprocating screw.

[0014] As a further scheme of the present application: the output end of the second motor is slidably penetrated through the reciprocating grooves and fixedly installed on the reciprocating screw, the placing plate is fixedly installed between the two reciprocating blocks, and the reciprocating blocks are slidably installed in the reciprocating grooves.

[0015] As a further scheme of the present application: a discharging assembly is arranged on the heating furnace, the discharging assembly comprises a sliding slot formed in the inner wall of the heating furnace, sealing plates are slidably installed in the sliding slot, the number of the sealing plates is two, a connecting plate is fixedly installed between the two sealing plates, fixed blocks with first electric telescopic rods are fixedly installed on the two sides of the base, the first electric telescopic rods are fixedly installed on the connecting plate at the ends away from the base, and a plurality of limiting grooves are formed in the placing plate.

[0016] As a further scheme of the present application: a rotating plate is rotatably installed on the side of the connecting plate away from the heating furnace, a second electric telescopic rod is fixedly installed on the end of the rotating plate away from the heating furnace, a mechanical claw is fixedly installed on the end of the second electric telescopic rod close to the placing plate, and a third motor is fixedly installed on the end of the rotating plate away from the second electric telescopic rod.

[0017] As a further scheme of the present application, the output end of the third motor is fixedly installed on the side of the rotating plate away from the connecting plate, the second electric telescopic rod is fixedly installed on the side of the rotating plate close to the placing plate, the first electric telescopic rod is fixedly installed on the top surface of the fixed block, and the sealing plate is matched in size with the limiting groove.

[0018] The present application has the following beneficial effects:

[0019] (1) The rotating disc in the rotating assembly is convenient for uniformly heating the special steel, convenient for stably clamping the uniformly heated special steel, convenient for clamping operation, is conducive to improving the clamping stability of the device, is conducive to improving the working efficiency of the device for uniformly heating, and is conducive to improving the working efficiency of the device for heat treating the special steel;

[0020] (2) The reciprocating block in the reciprocating assembly drives the placing plate to reciprocate in the heating furnace, so that the connection of feeding and discharging of the heating furnace is relatively close, feeding and discharging operations are facilitated, the reciprocating movement ability of the device is improved, and the working efficiency of the device for heating of the heating furnace is improved;

[0021] (3) The mechanical claw in the discharging assembly is driven by the rotating plate and the third motor, which facilitates discharging operation and also facilitates feeding operation of the rotating disc after discharging is completed, facilitates simultaneous feeding and discharging operation of the heating furnace, improves the discharging capacity of the device, improves the working efficiency of the device for discharging, and improves the working efficiency of the device for heat treating. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below with reference to the drawings.

[0023] Figure 1 is a whole structure schematic view of the industrial heat treatment furnace special steel uniform heating device of the present application;

[0024] Figure 2 is a side view structure schematic view of the industrial heat treatment furnace special steel uniform heating device of the present application;

[0025] Figure 3 is Figure 1 is an enlarged structure schematic view of position A in the figure;

[0026] Figure 4 is a bottom view structure schematic view of the industrial heat treatment furnace special steel uniform heating device of the present application;

[0027] Figure 5 is a top view structure schematic view of the industrial heat treatment furnace special steel uniform heating device of the present application;

[0028] Figure 6 is Figure 5 is an enlarged structure schematic view of position B in the figure.

[0029] In the figure: 1, base; 2, heating furnace; 3, placing plate; 4, rotating assembly; 41, rotating disc; 42, first motor; 43, electric telescopic column; 44, ventilation plate; 45, ventilation hole; 46, supporting column; 47, vertical plate; 48, telescopic rod; 49, clamping plate; 410, calibration plate; 411, elastic plate; 412, round hole; 413, limiting plate; 5, reciprocating assembly; 51, moving groove; 52, reciprocating groove; 53, reciprocating screw; 54, reciprocating block; 55, second motor; 56, chain; 57, chain wheel; 6, blanking assembly; 61, sliding groove; 62, limiting groove; 63, sealing plate; 64, connecting plate; 65, fixed block; 66, first electric telescopic rod; 67, rotating plate; 68, second electric telescopic rod; 69, mechanical claw; 610, third motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] Please refer to Figure 1 - Figure 6 As shown in the figure, the present application is a kind of industrial heat treatment furnace special steel uniform heating device, including base 1, the middle position on the top of base 1 is fixedly installed with heating furnace 2, heating furnace 2 is the heating equipment for heat treatment of special steel, the base 1 is slidably installed with placing plate 3, placing plate 3 is convenient for placing special steel into heating furnace 2 to heat, placing plate 3 is provided with rotating assembly 4;

[0032] The rotating assembly 4 comprises two installation grooves opened on the side of the placing plate 3 close to the heating furnace 2, and the rotating disc 41 is rotatably installed in the installation grooves, a plurality of vertical plates 47 are fixedly installed on the side of the rotating disc 41 close to the heating furnace 2, the vertical plates 47 not only play the role of stabilizing the telescopic rods 48, but also play the role of blocking the special steel from deviating due to centrifugal force in the rotating process, the telescopic rods 48 are slidably penetrated and installed on the vertical plates 47, the sliding friction of the telescopic rods 48 on the vertical plates 47 is greater than the telescopic friction of the telescopic rods 48, so when the clamping plates 49 are extruded, the telescopic rods 48 first contract, and then the telescopic rods 48 slide on the vertical plates 47, one end of the plurality of telescopic rods 48 corresponds to the fixed installation of the clamping plates 49, the clamping plates 49 cooperate with the calibration plates 410 to play the role of clamping and stabilizing the special steel placed on the ventilation plate 44, the side of the clamping plates 49 close to the vertical plates 47 is fixedly installed with the elastic plates 411, the elastic restoring force of the elastic plates 411 drives the clamping plates 49 to extrude the special steel, the elastic plates 411 also play the role of limiting and stabilizing the clamping plates 49, preventing the telescopic rods 48 from rotating and deviating on the vertical plates 47, the first motor 42 is fixedly installed on the side of the placing plate 3 away from the heating furnace 2, the output end of the first motor 42 is slidably penetrated and installed in the installation groove and fixedly installed on the rotating disc 41, the first motor 42 drives the rotating disc 41 to rotate in the heating furnace 2, which is convenient for the heating furnace 2 to uniformly heat the special steel on the rotating disc 41, the calibration plates 410 are fixedly installed on the end of the clamping plates 49 away from the rotating disc 41, the calibration plates 410 play the role of increasing the installation accuracy of the special steel, the limit plates 413 are fixedly installed on the side of the telescopic rods 48 away from the clamping plates 49, the limit plates 413 play the role of limiting the telescopic rods 48, preventing the telescopic rods 48 from sliding off the vertical plates 47, the round holes 412 are opened on the elastic plates 411, the telescopic rods 48 are slidably penetrated and installed in the round holes 412, the telescopic rods 48 play the role of supporting and stabilizing the elastic plates 411, the electric telescopic column 43 is fixedly installed on the side of the rotating disc 41 close to the clamping plates 49, the ventilation plate 44 is fixedly installed on the end of the electric telescopic column 43 away from the rotating disc 41, the electric telescopic column 43 is convenient for driving the ventilation plate 44 to move downward, at the same time, the supporting column 46 is slidably penetrated through the ventilation hole 45 to lift the special steel, which is convenient for the mechanical claws 69 to grab the special steel, the clamping plates 49 are installed above the ventilation plate 44, the ventilation hole 45 is opened on the ventilation plate 44, which is convenient for ventilation and uniform heating of the special steel on the ventilation plate 44, the supporting column 46 is fixedly installed on the rotating disc 41 at a position corresponding to the ventilation hole 45, the supporting column 46 is installed at the middle position of the rotating disc 41, which is convenient for uniformly heating the special steel, clamping and stabilizing the uniformly heated special steel, clamping operation, which is conducive to improving the clamping stability of the device, improving the working efficiency of the device for uniformly heating, and improving the working efficiency of the device for heat treatment of special steel.

[0033] Please refer to Figure 1 -Figure 5 As shown, the base 1 is provided with a reciprocating assembly 5, the reciprocating assembly 5 includes a moving groove 51 opened in the base 1 near the heating furnace 2 side, the inner wall of both sides of the moving groove 51 is provided with a reciprocating groove 52, the reciprocating groove 52 is rotatably installed with a reciprocating screw 53, the reciprocating screw 53 is threadedly installed with a reciprocating block 54, the reciprocating block 54 is slidably installed in the reciprocating groove 52, the placing plate 3 is fixedly installed between the two reciprocating blocks 54, one side of the base 1 is fixedly installed with a second motor 55, the second motor 55 drives the reciprocating screw 53 to slide in the reciprocating groove 52, at the same time, the reciprocating screw 53 drives the placing plate 3 to reciprocate in the moving groove 51 through the reciprocating block 54, the side of the base 1 away from the second motor 55 is rotatably installed with two chain wheels 57, the two chain wheels 57 are meshingly installed with a chain 56 between them, the chain wheel 57 drives the two chain wheels 57 to move synchronously, the rotating shaft of the chain wheel 57 slides through the reciprocating groove 52 and is fixedly installed on the reciprocating screw 53, the output end of the second motor 55 slides through the reciprocating groove 52 and is fixedly installed on the reciprocating screw 53, which facilitates the switching operation of feeding and discharging the heating furnace 2, and avoids the heating furnace 2 having a large waiting time between feeding and discharging as much as possible. Generally, after the special steel is heated, the next piece of special steel to be heated is installed into the heating furnace 2. Because the heating furnace 2 is relatively hot and protection is done, the manual operation process is relatively slow. The reciprocating assembly 5 of the heating furnace 2 drives the two rotating discs 41 on the placing plate 3 to rotate into the heating furnace 2 for heating alternately. The feeding and discharging are closely connected, which facilitates the reciprocating feeding and discharging operation, improves the reciprocating moving ability of the device, and improves the working efficiency of the heating furnace 2 of the device.

[0034] Please refer to Figure 1 - Figure 3As shown, the heating furnace 2 is provided with a discharging assembly 6, the discharging assembly 6 comprises a chute 61 opened in the inner wall of the heating furnace 2, the chute 61 is slidably installed with a sealing plate 63, the number of the sealing plate 63 is two, the sealing plate 63 plays a role of blocking the heating furnace 2, and the sealing plate 63 is opened, so as to facilitate the discharging of the special steel heated in the heating furnace 2 and the feeding of the special steel needing to be heated at the same time, so that the feeding and discharging of the device is relatively close, and the situation that the heating furnace 2 has only one inlet and outlet is avoided. The heating furnace 2 can only be fed after the discharging of the heating completion, the connecting plate 64 is fixedly installed between the two sealing plates 63, the fixed block 65 with the first electric telescopic rod 66 is fixedly installed on the two sides of the base 1, one end of the first electric telescopic rod 66 away from the base 1 is fixedly installed on the connecting plate 64, the first electric telescopic rod 66 facilitates the sliding of the sealing plate 63 in the chute 61, so that the sealing plate 63 is pulled out of the limiting groove 62, a plurality of limiting grooves 62 are opened in the placing plate 3, the limiting groove 62 plays a role of limiting the installation of the sealing plate 63, the rotating plate 67 is rotatably installed on the side of the connecting plate 64 away from the heating furnace 2, the second electric telescopic rod 68 is fixedly installed on the end of the rotating plate 67 away from the heating furnace 2, the mechanical claw 69 is fixedly installed on the end of the second electric telescopic rod 68 close to the placing plate 3, under the cooperation of the second electric telescopic rod 68, the rotating plate 67 and the third motor 610, the mechanical claw 69 not only facilitates the discharging of the special steel after heating, but also facilitates the feeding operation of the rotating disc 41 after discharging, so as to avoid the manual feeding and discharging as much as possible, which is beneficial to improve the working efficiency of the feeding and discharging of the device, the third motor 610 is fixedly installed on the end of the rotating plate 67 away from the second electric telescopic rod 68, the output end of the third motor 610 is fixedly installed on the side of the rotating plate 67 away from the connecting plate 64, the second electric telescopic rod 68 is fixedly installed on the side of the rotating plate 67 close to the placing plate 3, the first electric telescopic rod 66 is fixedly installed on the top surface of the fixed block 65, the size of the sealing plate 63 matches the size of the limiting groove 62, the sealing plate 63 is conveniently inserted into the limiting groove 62, which is convenient for discharging operation and also facilitates the feeding operation of the rotating disc 41 after discharging, facilitates the feeding and discharging operation of the heating furnace 2 at the same time, and makes the placing plate 3 reciprocate in the heating furnace 2, which is beneficial to improve the discharging capacity of the device, improve the working efficiency of the discharging of the device, and improve the working efficiency of the heat treatment of the device.

[0035] The working principle of the present application: when using the device, first start the third motor 610 and the mechanical claw 69, make the second electric telescopic rod 68 extend and drive the mechanical claw 69 to grab the special steel to be heated, then make the second electric telescopic rod 68 retract, then make the third motor 610 rotate the plate 67 to rotate, make the rotating plate 67 drive the second electric telescopic rod 68 and the mechanical claw 69 to move above the rotating disc 41, at the same time make the second electric telescopic rod 68 extend and loosen the mechanical claw 69, make the special steel slide on the calibration plate 410 and continuously descend to the ventilation plate 44, at the same time make the calibration plate 410 drive the clamping plate 49 to reversely extrude the elastic plate 411 and the telescopic rod 48, and first make the telescopic rod 48 retract, make the elastic plate 411 in the compressed state, after continuously increasing the reverse extrusion, make the telescopic rod 48 slide on the vertical plate 47, make the elastic restoring force of the elastic plate 411 drive the clamping plate 49 to clamp the special steel stably, then start the second motor 55, make the second motor 55 drive one of the reciprocating screws 53 to rotate in the reciprocating groove 52, make the reciprocating screw 53 drive one of the sprocket wheels 57 to rotate, at the same time make one of the sprocket wheels 57 drive the other sprocket wheel 57 to rotate synchronously through the meshing with the chain 56, make the rotating shaft of the other sprocket wheel 57 drive the other reciprocating screw 53 to rotate in the reciprocating groove 52, make the two reciprocating screws 53 drive the placement plate 3 to slide in the moving groove 51 through the reciprocating block 54, make the placement plate 3 move the special steel on the rotating disc 41 into the heating furnace 2, then start the first electric telescopic rod 66, make the first electric telescopic rod 66 drive the sealing plate 63 to slide in the sliding groove 61 through the connecting plate 64, at the same time make the sealing plate 63 insert into the limiting groove 62, then start the heating furnace 2 to heat the special steel, then start the first motor 42, make the output end of the first motor 42 drive the rotating disc 41 to rotate in the installation groove, facilitate the uniform heating operation, after the heating of the heating furnace 2 is completed, start the first electric telescopic rod 66 to extend, make the first electric telescopic rod 66 drive the sealing plate 63 to move upwards through the connecting plate 64, make the sealing plate 63 pull out from the limiting groove 62 and open the heating furnace 2, then start the third motor 610, make the third motor 610 drive the rotating plate 67 to rotate to the other side of the heating furnace 2, then retract the electric telescopic column 43, make the supporting column 46 pass through the ventilation hole 45 to lift the special steel, at the same time make the second electric telescopic rod 68 drive the mechanical claw 69 to grab the heated special steel from the ventilation plate 44, make the third motor 610 drive the rotating plate 67 to move the special steel on the mechanical claw 69 to one side to unload, then make the mechanical claw 69 grab the special steel to be heated and place it on the empty rotating disc 41, repeat the above operation.

[0036] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered to limit the implementation range of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent coverage range of the present application.

Claims

1. A device for uniform heating of special steel in industrial heat treatment furnaces, comprising a base (1), characterized in that: The middle position of the top of the base (1) is fixedly installed with a heating furnace (2), the base (1) is slidably installed with a placing plate (3), and the placing plate (3) is provided with a rotating assembly (4); The rotating assembly (4) comprises two installation grooves opened in the placing plate (3) on the side close to the heating furnace (2), and a rotating disc (41) is rotatably installed in the installation grooves, a plurality of vertical plates (47) are fixedly installed on the side of the rotating disc (41) close to the heating furnace (2), a telescopic rod (48) is slidably installed through the vertical plate (47), a clamping plate (49) is fixedly installed at the corresponding end of the plurality of telescopic rods (48), an elastic plate (411) is fixedly installed on the side of the clamping plate (49) close to the vertical plate (47), and a first motor (42) is fixedly installed on the side of the placing plate (3) away from the heating furnace (2).

2. The special steel uniform heating device of an industrial heat treatment furnace according to claim 1, characterized in that: The output end of the first motor (42) is slidably installed through the installation groove and fixedly installed on the rotating disc (41), the clamping plate (49) is fixedly installed with a calibration plate (410) at the end away from the rotating disc (41), and the telescopic rod (48) is fixedly installed with a limiting plate (413) on the side away from the clamping plate (49).

3. The special steel uniform heating device of an industrial heat treatment furnace according to claim 2, characterized in that: A round hole (412) is opened in the elastic plate (411), and the telescopic rod (48) is slidably installed in the round hole (412).

4. The special steel uniform heating device of an industrial heat treatment furnace according to claim 2, characterized in that: The rotating disc (41) is fixedly installed with an electric telescopic column (43) on the side close to the clamping plate (49), the electric telescopic column (43) is fixedly installed with a ventilation plate (44) at the end away from the rotating disc (41), the clamping plate (49) is installed above the ventilation plate (44), the ventilation plate (44) is opened with a ventilation hole (45), the rotating disc (41) is fixedly installed with a support column (46) at the position corresponding to the ventilation hole (45), and the support column (46) is installed at the middle position of the rotating disc (41).

5. The special steel uniform heating device of an industrial heat treatment furnace according to claim 1, characterized in that: The base (1) is provided with a reciprocating assembly (5), the reciprocating assembly (5) comprises a moving groove (51) opened in the base (1) on the side close to the heating furnace (2), reciprocating grooves (52) are opened in the inner walls on the two sides of the moving groove (51), a reciprocating screw (53) is rotatably installed in the reciprocating groove (52), a reciprocating block (54) is threadedly installed on the reciprocating screw (53), and a second motor (55) is fixedly installed on one side of the base (1).

6. The special steel uniform heating device of an industrial heat treatment furnace according to claim 5, characterized in that: Two chain wheels (57) are rotatably installed on the side of the base (1) away from the second motor (55), a chain (56) is meshingly installed between the two chain wheels (57), and the rotating shafts of the chain wheels (57) are slidably installed through the reciprocating grooves (52) and fixedly installed on the reciprocating screw (53).

7. The special steel uniform heating device of an industrial heat treatment furnace according to claim 6, characterized in that: The output end of the second motor (55) is slidably installed through the reciprocating groove (52) and fixedly installed on the reciprocating screw (53), the placing plate (3) is fixedly installed between the two reciprocating blocks (54), and the reciprocating block (54) is slidably installed in the reciprocating groove (52).

8. The special steel uniform heating device of an industrial heat treatment furnace according to claim 1, characterized in that: The heating furnace (2) is provided with a discharging assembly (6), the discharging assembly (6) comprises a chute (61) opened in the inner wall of the heating furnace (2), the chute (61) is slidably installed with a sealing plate (63), the number of the sealing plate (63) is two, two sealing plates (63) are fixedly installed with a connecting plate (64), both sides of the base (1) are fixedly installed with a fixed block (65) provided with a first electric telescopic rod (66), the first electric telescopic rod (66) is fixedly installed on the connecting plate (64) away from the base (1), a plurality of limiting grooves (62) are formed in the placing plate (3).

9. The special steel uniform heating device of an industrial heat treatment furnace according to claim 8, characterized in that: The connecting plate (64) is rotatably installed with a rotating plate (67) away from the heating furnace (2), the rotating plate (67) is fixedly installed with a second electric telescopic rod (68) away from the heating furnace (2), the second electric telescopic rod (68) is fixedly installed with a mechanical claw (69) close to the placing plate (3), the rotating plate (67) is fixedly installed with a third motor (610) away from the second electric telescopic rod (68).

10. The special steel uniform heating device of an industrial heat treatment furnace according to claim 9, characterized in that: The output end of the third motor (610) is fixedly installed on the side of the rotating plate (67) away from the connecting plate (64), the second electric telescopic rod (68) is fixedly installed on the side of the rotating plate (67) close to the placing plate (3), the first electric telescopic rod (66) is fixedly installed on the top surface of the fixed block (65), the size of the sealing plate (63) matches the size of the limiting groove (62).

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