Heat treatment furnace for metal heat treatment

Abstract

The present invention relates to the field of metal heat treatment technology, specifically a heat treatment furnace for metal heat treatment, including a furnace body and a furnace door hinged on the furnace body, the lower end of the furnace body is fixedly connected to a base, and a frame is installed on one side of the furnace body through a transmission mechanism, the inner side of the frame is symmetrically connected to concave plates through an elastic component, and the inner walls of the two concave plates are rotatably connected to rollers. When the small electric heating heat treatment furnace heats the metal plate, it can not only pre-clean the debris and other particulate impurities adhering to the surface of the metal plate, but also evenly coat the plate surface at the upper end of the plate with an anti-oxidation coating, so that the plate is not easily affected by high-temperature oxidation. The heat treatment effect and quality of the plate are also affected, and it can be applied to plates with a certain curvature and plates of different thicknesses, and has good applicability. The anti-oxidation coating does not require frequent manual feeding, and can realize intermittent automatic feeding, which brings convenience.

Description

Technical Field

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

[0002] Metal heat treatment is a process of heating the metal to a certain temperature and then cooling it in a controlled manner in order to change the metal's structure and properties.

[0003] For a small number of metal plates, an energy-saving small electric heating heat treatment furnace will be used. The metal plates are directly placed in the small electric heating heat treatment furnace, and then the small electric heating heat treatment furnace is started to heat the metal plates. Finally, the metal plates are taken out and immersed in water to complete the heat treatment of the metal plates.

[0004] However, some metal sheets are prone to oxidation at high temperatures. This is caused by the reaction of oxygen with the metal surface. For example, steel, iron, etc. will form oxide scale on the surface, which will affect the heat treatment effect of the metal sheet and further affect the quality of the metal sheet. At the same time, during the processing of some metal sheets before heat treatment, particulate impurities such as debris may adhere to the plate surface. At high temperatures, impurities may react with the metal surface and the surrounding oxygen, which will accelerate the oxidation process of the metal sheet at high temperatures, resulting in faster and thicker oxide scale formation, which is not conducive to the heat treatment effect of the metal sheet. To this end, we propose a heat treatment furnace for metal heat treatment. Summary of the invention

[0005] The object of the present invention is to provide a heat treatment furnace for metal heat treatment to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a heat treatment furnace for metal heat treatment, comprising a furnace body and a furnace door hinged on the furnace body, the lower end of the furnace body is fixedly connected to a base, and a frame is installed on one side of the furnace body through a transmission mechanism, the inner side of the frame is symmetrically connected with concave plates up and down through an elastic component, the inner walls of the two concave plates are rotatably connected with rollers, a plate member is fitted between the two rollers, one side wall of the concave plate located above is symmetrically fixedly connected with a fixed block, the two fixed blocks are fixedly connected with a barrel at one end away from the concave plate, an oil injection component is provided at the top of the outer wall of the barrel, and a plurality of conduits are connected to the bottom of the outer wall of the barrel, a square plate is fixedly sleeved at the lower edge of the outer wall of the plurality of conduits, a sponge block is fixedly connected to the lower end of the square plate, the lower end of the sponge block is tightly fitted with the upper end of the plate, a blocking component is provided inside the barrel, and a linkage component is provided between the roller located above and the blocking component.

[0007] Preferably, the transmission mechanism includes an electric slide 1, which is fixedly mounted on the middle of the upper end of the base, and a connecting plate is fixedly connected to the working table of the electric slide 1, and the top of the connecting plate is fixedly connected to the lower end of the frame.

[0008] Preferably, an electric slide 2 is fixedly installed at the front edge of the upper end of the base, a fixed plate is fixedly connected to the workbench of the electric slide 2, a push rod is fixedly connected to the top of the fixed plate, a side wall of the push rod is in contact with an end of the plate away from the furnace body, and a notch is provided at the front end of the frame corresponding to the push rod.

[0009] Preferably, the oil filling assembly comprises an oil filling pipe, which is connected to the top of the outer wall of the barrel, and a pipe cap is threadedly connected to the upper edge of the inner wall of the oil filling pipe.

[0010] Preferably, the elastic component includes four guide pillars, two of which are symmetrically slidably inserted into the upper and lower inner walls of the frame with the other two guide pillars, one end of the two guide pillars located above is fixedly connected to the upper end of the concave plate located above, and one end of the two guide pillars located below is fixedly connected to the lower end of the concave plate located below, and a spring 1 is slidably sleeved on the outer wall of the guide pillar, and the spring 1 is fixedly connected between the frame and the concave plate.

[0011] Preferably, the blocking assembly includes a pressure plate, which fits tightly on the bottom inner wall of the barrel, and a plurality of rubber blocks are fixedly connected to the lower end of the pressure plate, and the plurality of rubber blocks are respectively slidably inserted into the upper edges of the inner walls of the plurality of tubes, and an L-shaped block is fixedly connected to one edge of the upper end of the pressure plate, and the L-shaped block movably passes through the outer wall of the barrel, and a connecting column is fixedly connected to the horizontal wall of the L-shaped block, and the outer wall sliding sleeve of the connecting column is provided with an L-shaped block, and the bottom end of the L-shaped block is fixedly connected to the outer wall of the barrel, and a second spring is slidingly provided on the outer wall of the connecting column, and the second spring is fixedly connected between the L-shaped block and the L-shaped block.

[0012] Preferably, the linkage assembly includes an L-shaped plate and two rotating shafts, the L-shaped plate is fixedly connected to the end of the L-shaped block away from the pressure plate, the two rotating shafts are respectively fixedly connected to the front and rear ends of the roller located above, and the two rotating shafts are respectively movably passed through the front and rear ends of the concave plate located above, the front end of the rotating shaft located in the front is fixedly connected to a turntable, the front end edge of the turntable is rotatably connected to a connecting rod, the end of the connecting rod away from the turntable is rotatably connected to a push plate, the upper end of the push plate is fixedly connected to a triangular block, and the front end edge of the push plate is fixedly connected to an L-shaped rod, the L-shaped rod is slidably inserted into the side wall of the frame, and the triangular block is close to the horizontal wall of the L-shaped block.

[0013] Preferably, one side wall of the two concave plates away from the barrel is fixedly connected with a scraper, the two scrapers are V-shaped, and both are made of rubber material, and the ends of the two scrapers close to each other are respectively attached to the upper and lower ends of the plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Through the cooperation of the furnace body, furnace door, transmission mechanism, frame, elastic component, concave plate, roller, fixed block, barrel, conduit, square plate and sponge block, the small electric heating heat treatment furnace can not only pre-clean the debris and other particulate impurities adhering to the surface of the metal plate when heat treating the metal plate, but also can evenly coat the anti-oxidation coating on the upper end of the plate. The plate is not easily affected by high-temperature oxidation and the heat treatment effect and quality of the plate, and it can be applied to plates with a certain curvature and plates of different thicknesses, and has good applicability.

[0016] 2. Through the cooperation of the oil filling component, the sealing component and the linkage component, the anti-oxidation coating can be fed intermittently and automatically without frequent manual feeding, which brings convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a local structure display diagram of the framework of the present invention;

[0019] Figure 3 Another partial structural diagram of the framework of the present invention;

[0020] Figure 4 It is a partial cross-sectional view of the barrel, the oil injection pipe, the guide tube, the square plate and the sponge block of the present invention;

[0021] Figure 5 For the present invention Figure 4 A magnified view of the structure at center;

[0022] Figure 6 Another partial cross-sectional view of the barrel, the oil injection pipe, the conduit, the square plate and the sponge block of the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle.

[0024] In the accompanying drawings, the list of parts represented by each reference numeral is as follows: 1. furnace body; 2. furnace door; 3. plate; 4. push rod; 5. electric slide 1; 6. fixed plate; 7. electric slide 2; 8. connecting plate; 9. scraper; 10. frame; 11. barrel; 12. roller; 13. concave plate; 14. guide column; 15. spring 1; 16. L-shaped rod; 17. pipe cover; 18. oil filling pipe; 19. L-shaped block; 20. L-shaped plate; 21. square plate; 22. sponge block; 23. notch; 24. fixed block; 25. guide tube; 26. pressure plate; 27. connecting column; 28. spring 2; 29. ​​L-shaped block; 30. push plate; 31. triangular block; 32. connecting rod; 33. turntable; 34. rotating shaft; 35. rubber block; 36. base. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-Figure 7 In the figure, a heat treatment furnace for metal heat treatment includes a furnace body 1 and a furnace door 2 hinged on the furnace body 1. The lower end of the furnace body 1 is fixedly connected to a base 36, and a frame 10 is installed on one side of the furnace body 1 through a transmission mechanism. The inner side of the frame 10 is symmetrically connected to concave plates 13 through an elastic component. The inner walls of the two concave plates 13 are rotatably connected to rollers 12. A plate 3 is attached between the two rollers 12. A fixed block 24 is symmetrically fixed to one side wall of the concave plate 13 located at the top. The two The fixed block 24 is fixedly connected to one end away from the concave plate 13 with the barrel 11. An oil injection assembly is provided on the top of the outer wall of the barrel 11, and a plurality of conduits 25 are connected to the bottom of the outer wall of the barrel 11. A square plate 21 is fixedly sleeved on the lower edge of the outer wall of the plurality of conduits 25. A sponge block 22 is fixedly connected to the lower end of the square plate 21. The lower end of the sponge block 22 is tightly fitted with the upper end of the plate 3. A plugging assembly is provided inside the barrel 11, and a linkage assembly is provided between the roller 12 located above and the plugging assembly.

[0027] The transmission mechanism includes an electric slide 5, which is fixedly mounted on the middle of the upper end of the base 36, and a connecting plate 8 is fixedly connected to the working table of the electric slide 5, and the top of the connecting plate 8 is fixedly connected to the lower end of the frame 10.

[0028] The elastic component includes four guide pillars 14, two of which are symmetrically slidably inserted into the upper and lower inner walls of the frame 10 with the other two guide pillars 14, one end of the two guide pillars 14 located at the top is fixedly connected to the upper end of the concave plate 13 located at the top, and one end of the two guide pillars 14 located at the bottom is fixedly connected to the lower end of the concave plate 13 located at the bottom, and a spring 15 is slidably sleeved on the outer wall of the guide pillar 14, and the spring 15 is fixedly connected between the frame 10 and the concave plate 13.

[0029] A scraper 9 is fixedly connected to one side wall of the two concave plates 13 away from the barrel 11. The two scrapers 9 are both V-shaped and made of rubber material. The ends of the two scrapers 9 that are close to each other are respectively attached to the upper and lower ends of the plate 3.

[0030] In this embodiment, the electric slide 5 can be started to drive the connecting plate 8 and the frame 10 to move toward the furnace body 1 or away from the furnace body 1. At this time, the position of the frame 10 is adjusted to Figure 1 The plate 3 is inserted between the two scrapers 9. Since the scraper 9 is V-shaped and made of rubber material, it has good flexibility. The two scrapers 9 will undergo a certain deformation and the two scrapers 9 will fit tightly against the upper and lower ends of the plate 3, respectively. Then the plate 3 will be inserted between the two rollers 12. Under the action of the extrusion force, the two rollers 12 will move away from each other, and the two rollers 12 will fit tightly against the upper and lower ends of the plate 3, respectively. During the process, each roller 12 will drive the concave plate 13 connected to it to move together, and the concave plate 13 will drive the two guide pillars 14 to slide outward in the inner wall of the frame 10, and the concave plate 13 will squeeze the spring 15 connected to the frame 10. The upper concave plate 13 is in an upward movement, and will drive the barrel 11 to move upward through the fixed block 24, and the barrel 11 will drive the square through a plurality of guide tubes 25. The plate 21 moves up together, and the square plate 21 will drive the sponge block 22 to move up together. When the plate 3 passes through the sponge block 22, the upper end of the sponge block 22 will fit tightly with the lower end of the sponge block 22. Before that, anti-oxidation coating can be poured on the surface of the sponge block 22. The sponge block 22 is a porous structure, and the capillary effect can be used to make the entire sponge block 22 immersed in anti-oxidation coating. Then, the two surfaces of the plate 3 will continuously pass through the two scrapers 9 respectively, and the plate 3 will move between the two rollers 12, and the two rollers 12 will rotate accordingly. One surface of the plate 3 will also pass through the sponge block 22 immersed in anti-oxidation coating. Not only can the debris and other particulate impurities adhered to the surface of the plate 3 be pre-cleaned, but also the anti-oxidation coating can be evenly coated on the upper end of the plate 3. Then, the plate 3 is not easily affected by high-temperature oxidation and the heat treatment effect and quality of the plate 3.

[0031] A support frame can be placed inside the furnace body 1 to receive the delivered plate 3 until the tail of the plate 3 leaves the sponge block 22, and then the plate 3 is placed on the plate 3, and then the electric slide 5 is used to adjust the position of the frame 10 and keep it away from the furnace body 1, so as to prevent the frame 10 from blocking the closing of the furnace door 2 and the subsequent removal of the plate 3 after heat treatment in the furnace body 1. It should be noted that the other plate surface at the lower end of the plate 3 is in contact with the support frame, which is not easy to be fully exposed to oxygen, and it is optional to not apply anti-oxidation coating.

[0032] It should be noted that, according to the elasticity of the spring 15 and the flexibility of the scraper 9, the two rollers 12 and the two scrapers 9 can adapt to the passage of the plate 3 with a certain curvature on the surface, and are suitable for the passage of the plate 3 of different thicknesses. The barrel 11 can move together with the concave plate 13 connected to the roller 12 located above, and the barrel 11 can move with the sponge block 22, so that the sponge block 22 can adapt to the curvature change of the plate 3 with a certain curvature, the sponge block 22 can always be in contact with the surface of the plate 3 with a certain curvature and the applied pressure can be kept moderate, so that the plate 3 with a certain curvature and the plates 3 of different thicknesses can be coated evenly, and the applicability is good.

[0033] Example 2: Please refer to Figure 3-Figure 7 , this embodiment further explains Example 1. The linkage assembly in the figure includes an L-shaped plate 20 and two rotating shafts 34. The L-shaped plate 20 is fixedly connected to the end of the L-shaped block 29 away from the pressure plate 26. The two rotating shafts 34 are respectively fixedly connected to the front and rear ends of the roller 12 located above, and the two rotating shafts 34 are respectively movably passed through the front and rear ends of the concave plate 13 located above. The front end of the rotating shaft 34 located in the front is fixedly connected to a turntable 33, and a connecting rod 32 is rotatably connected at the front edge of the turntable 33. The end of the connecting rod 32 away from the turntable 33 is rotatably connected to a push plate 30. The upper end of the push plate 30 is fixedly connected to a triangular block 31, and the front end edge of the push plate 30 is fixedly connected to an L-shaped rod 16. The L-shaped rod 16 is slidably inserted into the side wall of the frame 10, and the triangular block 31 is close to the horizontal wall of the L-shaped block 29.

[0034] The plugging assembly includes a pressing plate 26, which fits tightly on the bottom inner wall of the barrel 11, and a plurality of rubber blocks 35 are fixedly connected to the lower end of the pressing plate 26, and the plurality of rubber blocks 35 are respectively slidably inserted into the upper edges of the inner walls of the plurality of conduits 25, and an L-shaped block 29 is fixedly connected to the edge of one side of the upper end of the pressing plate 26, and the L-shaped block 29 movably penetrates the outer wall of the barrel 11, and a connecting column 27 is fixedly connected to the horizontal wall of the L-shaped block 29, and an L-shaped block 19 is slidingly sleeved on the outer wall of the connecting column 27, and the bottom end of the L-shaped block 19 is fixedly connected to the outer wall of the barrel 11, and a spring 28 is slidingly sleeved on the outer wall of the connecting column 27, and the spring 28 is fixedly connected between the L-shaped block 19 and the L-shaped block 29.

[0035] The oil filling assembly includes an oil filling pipe 18, which is connected to the top of the outer wall of the barrel 11, and a pipe cover 17 is threadedly connected to the upper edge of the inner wall of the oil filling pipe 18; specifically, the anti-oxidation coating can be filled into the barrel 11 along the oil filling pipe 18 by unscrewing the pipe cover 17.

[0036] In this embodiment, when the roller 12 located at the top rotates, it can drive the turntable 33 to rotate, and the turntable 33 can drive the connecting rod 32 to swing back and forth, and the connecting rod 32 can drive the push plate 30 to move back and forth, and the push plate 30 can drive the L-shaped rod 16 to slide back and forth in the inner wall of the frame 10, and the push plate 30 can drive the triangular block 31 to move back and forth, and each time the triangular block 31 moves back and forth, it will contact and push the L-shaped plate 20 upward once, and the L-shaped plate 20 will drive the L-shaped block 29 to slide up in the inner wall of the barrel 11, and the L-shaped block 29 will drive the connecting column 27 to slide up in the L-shaped block 19, and the L-shaped block 29 will squeeze the spring 28 connected to the L-shaped block 19, and the L-shaped block 29 can also drive the pressure plate 26 to move up and away from the bottom inner wall of the barrel 11, and the pressure plate 26 can drive multiple rubber The blocks 35 leave the multiple conduits 25 respectively. At this time, the paint in the barrel 11 can flow into the sponge block 22 along the multiple conduits 25. When the triangular block 31 reciprocates left and right, the triangular block 31 will also leave the L-shaped plate 20. Under the action of the spring 28, the L-shaped plate 20, the L-shaped block 29, the connecting column 27, the pressure plate 26 and the multiple rubber blocks 35 will all move down and reset, that is, the multiple rubber blocks 35 will be respectively inserted into the multiple conduits 25 and seal the multiple conduits 25, then the paint in the barrel 11 is prevented from flowing into the sponge block 22. Then, as the triangular block 31 continues to reciprocate left and right, the sponge block 22 can intermittently replenish the paint, so that when the sponge block 22 is coating the plate 3, there is no need to manually replenish the sponge block 22 to achieve uniform coating of the plate 3 by the sponge block 22, which brings convenience.

[0037] Example 3: Please refer to Figure 1 This embodiment further explains the first embodiment. In the figure, an electric slide 2 7 is fixedly installed at the front edge of the upper end of the base 36, and a fixed plate 6 is fixedly connected to the workbench of the electric slide 2 7. A push rod 4 is fixedly connected to the top of the fixed plate 6. A side wall of the push rod 4 is in contact with an end of the plate 3 away from the furnace body 1, and a notch 23 is opened at the front end of the frame 10 corresponding to the push rod 4.

[0038] In this embodiment, the fixed plate 6 and the push rod 4 can be driven to move toward the furnace body 1 by starting the electric slide 2 7, and the push rod 4 can contact the end of the plate 3. Figure 1As shown, at this time, continue to drive the push rod 4 to move toward the direction of the furnace body 1, so that the plate 3 can be pushed to automatically pass through the two scrapers 9, the two rollers 12 and a sponge block 22, and the push rod 4 can pass through the notch 23 on the frame 10 until the push rod 4 leaves the bottom of the sponge block 22, so that the plate 3 can be completely separated from the sponge block 22, which brings convenience.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment furnace for heat treatment of metals, comprising a furnace body (1) and a furnace door (2) hinged to the furnace body (1), characterized in that: The lower end of the furnace body (1) is fixedly connected to a base (36), and a frame (10) is installed on one side of the furnace body (1) through a transmission mechanism. The inner side of the frame (10) is symmetrically connected to a concave plate (13) through an elastic component. The inner walls of the two concave plates (13) are rotatably connected to rollers (12). A plate (3) is fitted between the two rollers (12). A side wall of the concave plate (13) located at the top is symmetrically fixedly connected to a fixed block (24). The two fixed blocks (24) are located at one end away from the concave plate (13). A barrel (11) is fixedly connected together, an oil injection assembly is provided at the top of the outer wall of the barrel (11), and a plurality of conduits (25) are connected to the bottom of the outer wall of the barrel (11), a square plate (21) is fixedly sleeved together at the lower edge of the outer wall of the plurality of conduits (25), a sponge block (22) is fixedly connected to the lower end of the square plate (21), the lower end of the sponge block (22) is tightly fitted with the upper end of the plate (3), a blocking assembly is provided inside the barrel (11), and a linkage assembly is provided between the roller (12) located at the top and the blocking assembly; The plugging assembly comprises a pressing plate (26), the pressing plate (26) being tightly fitted on the bottom inner wall of the barrel (11), and a plurality of rubber blocks (35) being fixedly connected to the lower end of the pressing plate (26), the plurality of rubber blocks (35) being respectively slidably inserted into the upper edges of the inner walls of the plurality of conduits (25), an L-shaped block (29) being fixedly connected to the edge of one side of the upper end of the pressing plate (26), the L-shaped block (29) being movably penetrated through the outer wall of the barrel (11), and a connecting column (27) being fixedly connected to the horizontal wall of the L-shaped block (29), the outer wall of the connecting column (27) being slidably sleeved with an L-shaped block (19), the bottom end of the L-shaped block (19) being fixedly connected to the outer wall of the barrel (11), the outer wall of the connecting column (27) being slidably sleeved with a second spring (28), the second spring (28) being fixedly connected between the L-shaped block (19) and the L-shaped block (29); The linkage assembly comprises an L-shaped plate (20) and two rotating shafts (34), wherein the L-shaped plate (20) is fixedly connected to one end of the L-shaped block (29) away from the pressure plate (26), the two rotating shafts (34) are respectively fixedly connected to the front and rear ends of the roller (12) located above, and the two rotating shafts (34) are respectively movably penetrated through the front and rear ends of the concave plate (13) located above, the front end of the rotating shaft (34) located in the front is fixedly connected to a rotating disk (33), the front end edge of the rotating disk (33) is rotatably connected to a connecting rod (32), the end of the connecting rod (32) away from the rotating disk (33) is rotatably connected to a push plate (30), the upper end of the push plate (30) is fixedly connected to a triangular block (31), and the front end edge of the push plate (30) is fixedly connected to an L-shaped rod (16), the L-shaped rod (16) is slidably inserted into the side wall of the frame (10), and the triangular block (31) is close to the horizontal wall of the L-shaped block (29).

2. A heat treatment furnace for metal heat treatment according to claim 1, characterized in that: The transmission mechanism comprises an electric slide (5), wherein the electric slide (5) is fixedly mounted on the middle part of the upper end of the base (36), and a connecting plate (8) is fixedly connected to the working table of the electric slide (5), and the top end of the connecting plate (8) is fixedly connected to the lower end of the frame (10).

3. A heat treatment furnace for metal heat treatment according to claim 1, characterized in that: An electric slide table 2 (7) is fixedly mounted at the front edge of the upper end of the base (36); a fixed plate (6) is fixedly connected to the working table of the electric slide table 2 (7); a push rod (4) is fixedly connected to the top of the fixed plate (6); a side wall of the push rod (4) is in contact with an end of the plate (3) away from the furnace body (1); and a notch (23) is provided at the front end of the frame (10) corresponding to the push rod (4).

4. A heat treatment furnace for metal heat treatment according to claim 1, characterized in that: The oil injection assembly comprises an oil injection pipe (18), the oil injection pipe (18) being connected to the top of the outer wall of the barrel (11), and a pipe cover (17) being threadedly connected at the upper edge of the inner wall of the oil injection pipe (18).

5. A heat treatment furnace for metal heat treatment according to claim 1, characterized in that: The elastic component comprises four guide pillars (14), wherein two of the guide pillars (14) and the other two guide pillars (14) are respectively symmetrically slidably inserted into the upper and lower inner walls of the frame (10), one end of the two guide pillars (14) located at the top is fixedly connected to the upper end of the concave plate (13) located at the top, and one end of the two guide pillars (14) located at the bottom is fixedly connected to the lower end of the concave plate (13) located at the bottom, and a spring (15) is slidably sleeved on the outer wall of the guide pillar (14), and the spring (15) is fixedly connected between the frame (10) and the concave plate (13).

6. A heat treatment furnace for metal heat treatment according to claim 1, characterized in that: A scraper (9) is fixedly connected to one side wall of the two concave plates (13) away from the barrel (11); the two scrapers (9) are both V-shaped and made of rubber material; and the ends of the two scrapers (9) that are close to each other are respectively fitted on the upper and lower ends of the plate member (3).

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