Heat treatment furnace for casting production

Abstract

The invention relates to the technical field of heat treatment furnaces, and discloses a heat treatment furnace for casting production, the heat treatment furnace comprises a heat treatment furnace body and a casting main body, the periphery of the bottom of the heat treatment furnace body is fixedly provided with supporting columns, and the bottom of the heat treatment furnace body is symmetrically and fixedly provided with electric push rods; the telescopic ends of the electric push rods are fixedly provided with the same connecting plate, the side, close to the heat treatment furnace body, of the connecting plate is fixedly connected with a sealing door, a push assembly is arranged in the heat treatment furnace body, and a sealing assembly is arranged on one side of the top of the heat treatment furnace body; the pushing assembly comprises a pushing part and a cleaning part, the pushing part comprises a placing plate fixedly connected to the lower part of one side of the sealing door, and the problems that impurities on the surface of a casting are not cleaned in time before heat treatment, and dust and impurities can hinder uniform transfer of heat, so that the structure and performance in the casting are not uniform, and the heat treatment efficiency is improved are solved. And the heat treatment finished product quality of the casting is reduced.

Description

Technical Field

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

[0002] Castings are metal shaped objects obtained by various casting methods. During the production process, they are generally heat treated in a heat treatment furnace. Heat treatment can improve the mechanical properties, durability and reliability of castings by changing the organizational structure of the castings, eliminating internal stress, and adjusting hardness and toughness to meet different engineering and use requirements.

[0003] For example, a feeding and discharging mechanism for a casting heat treatment furnace with announcement number CN219568006U includes a heat treatment furnace, a feeding port located on one side of the heat treatment furnace, a door panel arranged at the feeding port, a guide rail arranged through the feeding port of the heat treatment furnace, and a bottom bracket slidably connected to the guide rail, a pulley is provided under the bottom bracket, the pulley is slidably connected to the guide rail, and the bottom bracket can slide inside and outside the heat treatment furnace along the guide rail. A threshold is provided at the bottom of the feed port of the heat treatment furnace, and a clearance opening is provided at the position of the threshold relative to the guide rail. A stopper matching the shape of the clearance opening is provided at the clearance opening. The sliding of the bottom bracket enables the casting above it to freely enter and exit the heat treatment furnace, without the need for staff to enter the heat treatment furnace to carry out material loading and unloading operations. However, due to the high dust concentration in the foundry workshop, during the casting process, dust in the air is easily adhered to the surface of the casting, and these dust and debris may hinder the uniform transfer of heat, causing local overheating or overcooling of the casting, thereby affecting the subsequent heat treatment effect and causing uneven organization and performance inside the casting. Surface debris may also become an area of ​​stress concentration during the heat treatment process, causing the casting to be more prone to cracks or deformation during use, and also reducing the quality of the heat treatment finished product of the casting. In addition, the cabinet door of the heat treatment furnace has poor sealing, which is easy to cause heat loss in the heat treatment furnace and reduce the heating efficiency of the heat treatment furnace. Summary of the invention

[0004] The purpose of the present invention is to provide a heat treatment furnace for casting production to solve the problem that the debris on the surface of the casting is not cleaned in time before heat treatment, the dust and debris will hinder the uniform transfer of heat, resulting in uneven organization and performance inside the casting, and reducing the quality of the heat-treated finished casting.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat treatment furnace for casting production, comprising a heat treatment furnace body and a casting body, support columns are fixedly installed around the bottom of the heat treatment furnace body, and electric push rods are symmetrically fixedly installed on the bottom of the heat treatment furnace body; Also includes: The telescopic end of the electric push rod is fixedly installed with the same connecting plate. One side of the connecting plate close to the heat treatment furnace body is fixedly connected with a sealing door. A pushing assembly is arranged inside the heat treatment furnace body, and a sealing assembly is arranged on one side of the top of the heat treatment furnace body; The pushing assembly includes a pushing part and a cleaning part. The pushing part includes a placing plate fixedly connected to the lower part of one side of the sealing door. A lead screw part is threadedly connected inside the sealing door. One side of the lead screw part close to the heat treatment furnace body is rotatably connected with a pushing plate. A front communication pipe is fixedly installed on one side of the pushing plate close to the sealing door; The cleaning part includes a fixing plate fixedly installed inside the heat treatment furnace body. Square grooves are symmetrically opened at the bottom of the fixing plate. Vertical plates are symmetrically slidably installed on both side walls of the square grooves. One side of the inner top surface of the heat treatment furnace body is slidably installed with a pressing plate.

[0006] Preferably, a universal wheel is fixedly installed at the bottom of the telescopic end of the electric push rod. An observation window is fixedly installed on one side of the heat treatment furnace body. A cleaning roller is rotatably installed in a groove opened at the top of the placing plate. The cleaning rollers are evenly arranged at equal distances and there are no less than five cleaning rollers. There are two lead screw parts symmetrically arranged. The number of pushing plates is the same as that of the lead screw parts. A first spring is fixedly connected between the pushing plate and the sealing door.

[0007] By adopting the above technical solution, the cleaning roller is used to clean the bottom surface of the casting body. The vertical plates scrape and clean the left and right sides of the casting body. The pressing plate cleans the top surface of the casting body. Through the front communication pipe and the rear communication pipe, the inside of the heat treatment furnace body is evacuated, which is convenient for dust removal on one side of the front and back of the casting body, realizing the overall dust removal of the casting body.

[0008] Preferably, the sealing door is snap-connected to the heat treatment furnace body. There are no less than four first springs. The front communication pipe is slidably connected to the sealing door. The fixing plate is located on one side of the heat treatment furnace body close to the sealing door. There are no less than two square grooves. Horizontal grooves are symmetrically opened on the side walls of the square grooves.

[0009] By adopting the above technical solution, the sealing door drives the placing plate to slide into the inside of the heat treatment furnace body, and the casting body slides into the square groove. The two inclined sides of the vertical plate are used to guide the casting body, facilitating the casting body to be located between two adjacent vertical plates.

[0010] Preferably, a second spring is fixedly installed inside the horizontal groove. One end of the second spring is fixedly connected with a moving rod. The moving rod is slidably connected to the horizontal groove. The end of the moving rod away from the horizontal groove is fixedly connected with the vertical plate. Inclined sides are symmetrically and fixedly connected to the outer sides of the vertical plate and the pressing plate.

[0011] By adopting the above technical solution, the casting main body presses against the extrusion vertical plate and the moving rod. The moving rod slides into the horizontal groove and compresses the second spring, causing the vertical plate to closely adhere to the left and right sides of the casting main body, and cleaning the left and right sides of the casting main body.

[0012] Preferably, symmetrically fixedly connected to the inner top surface of the heat treatment furnace body are fixed cylinders. Inside the fixed cylinders, third springs are fixedly connected. The bottom ends of the third springs are fixedly connected to sliding rods, which are slidably connected to the fixed cylinders. The bottom ends of the sliding rods are fixedly connected to pressing plates. The number of pressing plates is the same as that of the square grooves. Symmetrically fixedly installed on one side of the back of the heat treatment furnace body are rear communication pipes, and fixedly installed on one side of the top of the heat treatment furnace body is a breathing valve.

[0013] By adopting the above technical solution, when the casting main body contacts the inclined side of the pressing plate, the top surface of the casting main body will press against the inclined side of the pressing plate, causing the pressing plate to drive the sliding rod to move upward. The sliding rod slides into the fixed cylinder and compresses the third spring, causing the pressing plate to tightly press against the top surface of the casting main body, and cleaning the top surface of the casting main body.

[0014] Preferably, the sealing assembly includes an installation groove opened on one side of the front. Inside the installation groove, an airbag part is fixedly installed. One side of the airbag part is connected to an air pipe, and fixedly connected to the upper part of one side of the front of the sealing door is a contact plate.

[0015] By adopting the above technical solution, the sealing door will drive the contact plate to press against the abutting block. The abutting block drives the cross bar to slide and compress the fourth spring. The cross bar drives the piston part to slide inside the fixed box. The piston part presses the gas inside the fixed box, and the gas is input into the airbag part through the air pipe, thereby causing the airbag part to expand.

[0016] Preferably, the number of the contact plates is not less than three. Connecting plates are fixedly connected between adjacent contact plates. Fixedly connected to the top of the heat treatment furnace body is a fixed box, and fixedly connected to one side of the top of the heat treatment furnace body close to the sealing door is a vertical block.

[0017] By adopting the above technical solution, multiple groups of fixed boxes are provided, which can quickly inflate the airbag part, facilitating the sealing of the connection between the sealing door and the heat treatment furnace body.

[0018] Preferably, the number of the fixed boxes and the vertical blocks is the same as that of the contact plates. A cross bar is slidably connected inside the vertical block. One end of the cross bar is fixedly connected to an abutting block, and the fourth spring is sleeved outside the cross bar.

[0019] By adopting the above technical solution, the fourth spring is used to assist the reset of the abutting block and the cross bar.

[0020] Preferably, both ends of the fourth spring are fixedly connected to the vertical block and the abutting block respectively. The other end of the cross bar is fixedly connected with a piston part, and the piston part is slidably connected to the fixed box. One end of the air pipe far away from the air bag part is communicated with the fixed box.

[0021] By adopting the above technical solution, the air bag part seals the connection between the sealing door and the heat treatment furnace body, reduces the heat dissipation inside the heat treatment furnace body, and improves the heat treatment efficiency of the subsequent casting body.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting the pushing component, when feeding the casting body, the operator places the casting body on the top of the cleaning roller through the fixture and slides the casting body so that one side of the casting body fits against the push plate. At this time, the cleaning roller is used to clean the bottom surface of the casting body. Then, the operator starts the electric push rod at the bottom, and the electric push rod drives the connecting plate and the sealing door to move. The sealing door drives the placing plate to slide into the heat treatment furnace body, and the casting body slides into the square groove. The two inclined sides of the vertical plate are used to guide the casting body. The casting body is located between two adjacent vertical plates. The casting body squeezes the vertical plate and the moving rod, and the moving rod slides into the transverse groove and compresses the second spring, so that the vertical plate closely adheres to the left and right sides of the casting body, facilitating the scraping and cleaning of the left and right sides of the casting body. When the casting body contacts the inclined side of the pressing plate, the top surface of the casting body will squeeze the inclined side of the pressing plate, causing the pressing plate to drive the sliding rod to move upward. The sliding rod slides into the fixed cylinder and compresses the third spring, so that the pressing plate presses tightly on the top surface of the casting body, facilitating the cleaning of the top surface of the casting body; 2. When the sealing door is closed and clamped with the heat treatment furnace body, the operator screws in the screw rod parts on both sides inward. The screw rod parts drive the push plate to move. The push plate pushes the casting body to separate from the vertical plate, and the top surface of the push plate is higher than the top surface of the casting body, so that the push plate will squeeze and drive the pressing plate to rise, and the pressing plate separates from the casting body, thus facilitating the subsequent heat treatment processing of the casting body. Then, the operator screws out the screw rod parts on both sides outward. The screw rod parts rotate to drive the push plate to move towards the sealing door. The push plate drives the front communication pipe to move and compresses the first spring, so that the push plate separates from the casting body. Then, an external exhaust fan is connected to the front communication pipe and the rear communication pipe through a pipeline, and the stop valves on the outer sides of the front communication pipe and the rear communication pipe are opened to evacuate the inside of the heat treatment furnace body. The breathing valve is used to keep the air pressure inside the heat treatment furnace body stable, facilitating the dust cleaning on one side of the front and back of the casting body, thereby realizing the overall dust cleaning of the casting body, improving the finished product quality. An electromagnet is arranged inside the push plate, which is convenient for adsorbing the casting body and sliding out synchronously during discharging, solving the problem that the sundries on the surface of the casting are not cleaned in time before treatment, and the dust and sundries will hinder the uniform transfer of heat, resulting in non-uniform organization and performance inside the casting and reducing the heat treatment finished product quality of the casting; 3. By setting up a sealing component, when the sealing door moves close to the heat treatment furnace body, the sealing door will drive the contact plate to squeeze the abutting block, the abutting block drives the cross bar to slide and compress the fourth spring, the cross bar drives the piston part to slide inside the fixed box, the piston part squeezes the gas inside the fixed box, and the gas is input into the air bag part through the air pipe, so that the air bag part expands until the sealing door is clamped with the heat treatment furnace body. There are multiple groups of fixed boxes, which are convenient for quickly inflating the air bag part, facilitating the sealing of the connection between the sealing door and the heat treatment furnace body, reducing the heat dissipation inside the heat treatment furnace body, improving the heat treatment efficiency of the subsequent casting body, and the inner wall of the heat treatment furnace body is provided with a rock wool heat insulation layer for reducing heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall three-dimensional structure of the first embodiment of the present invention; Figure 2 is a schematic diagram of the overall three-dimensional structure of the second embodiment of the present invention; Figure 3 is a schematic diagram of the mounting structure of the connecting plate of the present invention; Figure 4 For the present invention Figure 3 is an enlarged schematic view of part A in the present invention; Figure 5 is a schematic cross-sectional view of the heat treatment furnace body of the present invention; Figure 6 For the present invention Figure 5 is an enlarged schematic view of part B in the present invention; Figure 7 For the present invention Figure 5 is an enlarged schematic view of part C in the present invention; Figure 8 is a schematic diagram of the mounting structure of the push plate of the present invention; Figure 9 is a schematic cross-sectional view of the fixed plate of the present invention; Figure 10 For the present invention Figure 9 is an enlarged schematic view of part D in the present invention; Figure 11 is a schematic diagram of the mounting structure of the air bag part of the present invention; Figure 12 For the present invention Figure 11 is an enlarged schematic view of part E in the present invention; Figure 13 is a schematic diagram of the mounting structure of the air pipe of the present invention.

[0024] In the figure: 1, heat treatment furnace body; 2, support column; 3, electric push rod; 4, connecting plate; 5, sealing door; 6, pushing assembly; 61, placing plate; 62, cleaning roller; 63, lead screw part; 64, pushing plate; 65, first spring; 66, front connecting pipe; 67, fixing plate; 68, square groove; 69, horizontal groove; 610, second spring; 611, moving rod; 612, vertical plate; 613, fixed cylinder; 614, third spring; 615, sliding rod; 616, pressing plate; 617, rear connecting pipe; 618, breathing valve; 7, sealing assembly; 71, installation groove; 72, airbag part; 73, air pipe; 74, contact plate; 75, connecting plate; 76, fixed box; 77, vertical block; 78, cross bar; 79, abutting block; 710, fourth spring; 711, piston part; 8, universal wheel; 9, observation window; 10, casting main body. Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 - 3 , the present invention provides a technical solution: a heat treatment furnace for casting production, including a heat treatment furnace body 1 and a casting main body 10. Support columns 2 are fixedly installed around the bottom of the heat treatment furnace body 1, and electric push rods 3 are symmetrically and fixedly installed at the bottom of the heat treatment furnace body 1.

[0027] A connecting plate 4 is fixedly installed at the telescopic end of the electric push rod 3. A sealing door 5 is fixedly connected to the side of the connecting plate 4 close to the heat treatment furnace body 1, and a pushing assembly 6 is arranged inside the heat treatment furnace body 1.

[0028] The pushing assembly 6 includes a pushing part and a cleaning part. The pushing part includes a placing plate 61 fixedly connected to the lower part of one side of the sealing door 5. A lead screw part 63 is threadedly connected inside the sealing door 5. A pushing plate 64 is rotatably connected to the side of the lead screw part 63 close to the heat treatment furnace body 1. A front connecting pipe 66 is fixedly installed on the side of the pushing plate 64 close to the sealing door 5.

[0029] Universal wheels 8 are fixedly installed at the bottom of the telescopic end of the electric push rod 3. An observation window 9 is fixedly installed on one side of the heat treatment furnace body 1. Cleaning rollers 62 are rotatably installed in the grooves on the top of the placing plate 61. The cleaning rollers 62 are evenly arranged at equal distances, and there are no less than five cleaning rollers 62. Two lead screw parts 63 are symmetrically arranged, and the number of pushing plates 64 is the same as that of the lead screw parts 63. A first spring 65 is fixedly connected between the pushing plate 64 and the sealing door 5.

[0030] The cleaning part includes a fixed plate 67 fixedly installed inside the heat treatment furnace body 1, and a square groove 68 is symmetrically opened at the bottom of the fixed plate 67. Vertical plates 612 are symmetrically slidably installed on both side walls of the square groove 68, and a pressure plate 616 is slidably installed on one side of the inner top surface of the heat treatment furnace body 1.

[0031] The sealing door 5 is snap-connected with the heat treatment furnace body 1, there are no less than four springs 65, the front connecting pipe 66 is slidingly connected with the sealing door 5, the fixing plate 67 is located on the side of the heat treatment furnace body 1 close to the sealing door 5, there are no less than two square grooves 68, and the side walls of the square grooves 68 are symmetrically provided with transverse grooves 69.

[0032] A spring 2 610 is fixedly installed inside the transverse groove 69, one end of the spring 2 610 is fixedly connected to a moving rod 611, the moving rod 611 is slidably connected to the transverse groove 69, and the end of the moving rod 611 away from the transverse groove 69 is fixedly connected to the vertical plate 612, and the outer sides of the vertical plate 612 and the pressure plate 616 are symmetrically fixedly connected with hypotenuses.

[0033] A fixed cylinder 613 is symmetrically fixedly connected to the inner top surface of the heat treatment furnace body 1, a spring three 614 is fixedly connected inside the fixed cylinder 613, a sliding rod 615 is fixedly connected to the bottom end of the spring three 614, the sliding rod 615 is slidably connected to the fixed cylinder 613, the bottom end of the sliding rod 615 is fixedly connected to a pressure plate 616, the number of pressure plates 616 is the same as the square groove 68, a rear connecting pipe 617 is symmetrically fixedly installed on one side of the back side of the heat treatment furnace body 1, a breathing valve 618 is fixedly installed on one side of the top of the heat treatment furnace body 1, and stop valves are installed on the outside of the screw rod part 63 and the rear connecting pipe 617.

[0034] Embodiment 1: Figures 4 - 10 As shown, when feeding the casting body 10, the operator places the casting body 10 on the top of the cleaning roller 62 through the clamp, and slides the casting body 10 so that one side of the casting body 10 is in contact with the push plate 64. At this time, the cleaning roller 62 is used to clean the bottom surface of the casting body 10. Then, the operator starts the electric push rod 3 at the bottom, and the electric push rod 3 drives the connecting plate 4 and the sealing door 5 to move. The sealing door 5 drives the placement plate 61 to slide into the interior of the heat treatment furnace body 1, and the casting body 10 slides into the square groove 68. The oblique edges on both sides of the vertical plate 612 are used to guide the casting body 10, and the casting body 10 is located between two adjacent vertical plates 612.

[0035] The casting main body 10 presses against the vertical plate 612 and the moving rod 611. The moving rod 611 slides into the transverse groove 69 and compresses the second spring 610, causing the vertical plate 612 to closely adhere to the left and right sides of the casting main body 10, facilitating scraping and cleaning of the left and right sides of the casting main body 10. When the casting main body 10 contacts the hypotenuse of the pressing plate 616, the top surface of the casting main body 10 presses against the hypotenuse of the pressing plate 616, causing the pressing plate 616 to drive the sliding rod 615 to move upward. The sliding rod 615 slides into the fixed cylinder 613 and compresses the third spring 614, causing the pressing plate 616 to tightly press against the top surface of the casting main body 10, facilitating cleaning of the top surface of the casting main body 10.

[0036] Until the sealing door 5 is closed and clamped with the heat treatment furnace body 1, the operator screws in the screw rod parts 63 on both sides inward. The screw rod parts 63 drive the push plate 64 to move. The push plate 64 pushes the casting main body 10 to separate from the vertical plate 612, and the top surface of the push plate 64 is higher than the top surface of the casting main body 10, causing the push plate 64 to squeeze and drive the pressing plate 616 to rise, and the pressing plate 616 separates from the casting main body 10, thus facilitating subsequent heat treatment processing of the casting main body 10.

[0037] Then the operator screws out the screw rod parts 63 on both sides outward. The screw rod parts 63 rotate to drive the push plate 64 to move towards the sealing door 5. The push plate 64 drives the front communication pipe 66 to move and compresses the first spring 65, causing the push plate 64 to separate from the casting main body 10. Then, an external exhaust fan is connected to the front communication pipe 66 and the rear communication pipe 617 through a pipeline, and the stop valves on the outer sides of the front communication pipe 66 and the rear communication pipe 617 are opened to evacuate the inside of the heat treatment furnace body 1. The breathing valve 618 is used to maintain the air pressure stability inside the heat treatment furnace body 1, facilitating dust cleaning on one side of the front and back of the casting main body 10, thereby realizing overall dust cleaning of the casting main body 10, improving the finished product quality. An electromagnet is arranged inside the push plate 64, facilitating adsorbing the casting main body 10 and sliding out synchronously during discharging, solving the problem that sundries on the surface of the casting are not cleaned in time before treatment, and the dust and sundries will hinder the uniform transfer of heat, resulting in non-uniform organization and performance inside the casting and reducing the heat treatment finished product quality of the casting.

[0038] A sealing assembly 7 is arranged on one side of the top of the heat treatment furnace body 1. The sealing assembly 7 includes an installation groove 71 opened on one side of the front. An airbag part 72 is fixedly installed inside the installation groove 71. One side of the airbag part 72 is connected with an air pipe 73. The upper part of one side of the front of the sealing door 5 is fixedly connected with a contact plate 74.

[0039] There are no less than three contact plates 74. A connecting plate 75 is fixedly connected between adjacent contact plates 74. The top of the heat treatment furnace body 1 is fixedly connected with a fixed box 76. The top of the heat treatment furnace body 1 is fixedly connected with a vertical block 77 near one side of the sealing door 5.

[0040] The number of the fixed boxes 76 and the vertical blocks 77 is the same as that of the contact plates 74. A cross bar 78 is slidably connected inside the vertical block 77. One end of the cross bar 78 is fixedly connected with a resisting block 79, and a fourth spring 710 is sleeved outside the cross bar 78.

[0041] Two ends of the fourth spring 710 are respectively fixedly connected with the vertical block 77 and the resisting block 79. The other end of the cross bar 78 is fixedly connected with a piston part 711. The piston part 711 is slidably connected with the fixed box 76. One end of the air pipe 73 far away from the air bag part 72 is communicated with the fixed box 76.

[0042] Embodiment 2: As Figures 11 - 13 shown, when the sealing door 5 moves close to the heat treatment furnace body 1, the sealing door 5 drives the contact plate 74 to squeeze the resisting block 79. The resisting block 79 drives the cross bar 78 to slide and compress the fourth spring 710. The cross bar 78 drives the piston part 711 to slide inside the fixed box 76. The piston part 711 squeezes the gas inside the fixed box 76. The gas is input into the air bag part 72 through the air pipe 73, so that the air bag part 72 expands until the sealing door 5 is clamped with the heat treatment furnace body 1.

[0043] Multiple groups of fixed boxes 76 are provided, which is convenient for quickly inflating the air bag part 72, convenient for sealing the connection between the sealing door 5 and the heat treatment furnace body 1, reducing the heat dissipation inside the heat treatment furnace body 1, improving the heat treatment efficiency of the subsequent casting body 10. The inner wall of the heat treatment furnace body 1 is provided with a rock wool heat insulation layer for reducing heat loss.

[0044] Working principle: When using this device, first, as Figures 1 - 13As shown in the figure, when feeding the casting body 10, the operator places the casting body 10 on the top of the cleaning roller 62 through a fixture. The cleaning roller 62 is used to clean the bottom surface of the casting body 10. The operator starts the electric push rod 3 at the bottom, and the electric push rod 3 drives the connecting plate 4 and the sealing door 5 to move. The sealing door 5 drives the placement plate 61 to slide into the heat treatment furnace body 1. The vertical plate 612 scrapes and cleans the left and right sides of the casting body 10, and the pressing plate 616 cleans the top surface of the casting body 10. When the sealing door 5 moves close to the heat treatment furnace body 1, the sealing door 5 drives the contact plate 74 to squeeze the abutting block 79. The abutting block 79 drives the cross bar 78 to slide and compress the spring four 710. The cross bar 78 drives the piston part 711 to slide inside the fixed box 76, so that the air bag part 72 expands, facilitating the sealing of the connection between the sealing door 5 and the heat treatment furnace body 1 until the sealing door 5 is tightly clamped with the heat treatment furnace body 1. The operator screws in the screw rod parts 63 on both sides inward, and the push plate 64 pushes the casting body 10 to separate from the vertical plate 612, and the pressing plate 616 separates from the casting body 10. Then the operator screws out the screw rod parts 63 on both sides outward, so that the push plate 64 separates from the casting body 10. Then the external exhaust fan is connected to the front connecting pipe 66 and the rear connecting pipe 617 through a pipeline, and the stop valves on the outer sides of the front connecting pipe 66 and the rear connecting pipe 617 are opened to extract air from the inside of the heat treatment furnace body 1, facilitating the dust cleaning treatment on the front and back sides of the casting body 10, thereby realizing the overall dust cleaning of the casting body 10.

[0045] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat treatment furnace for casting production, comprising a heat treatment furnace body (1) and a casting main body (10). Support columns (2) are fixedly installed around the bottom of the heat treatment furnace body (1), and electric push rods (3) are symmetrically and fixedly installed at the bottom of the heat treatment furnace body (1). It is characterized in that It further includes: A connecting plate (4) is fixedly installed at the telescopic end of the electric push rod (3). A sealing door (5) is fixedly connected to one side of the connecting plate (4) close to the heat treatment furnace body (1). A pushing assembly (6) is arranged inside the heat treatment furnace body (1), and a sealing assembly (7) is arranged on one side of the top of the heat treatment furnace body (1). The pushing assembly (6) includes a pushing part and a cleaning part. The pushing part includes a placing plate (61) fixedly connected to the lower part of one side of the sealing door (5). A lead screw part (63) is threadedly connected inside the sealing door (5). A push plate (64) is rotatably connected to the side of the lead screw part (63) close to the heat treatment furnace body (1). A front communication pipe (66) is fixedly installed on the side of the push plate (64) close to the sealing door (5). The cleaning part includes a fixing plate (67) fixedly installed inside the heat treatment furnace body (1). Square grooves (68) are symmetrically formed at the bottom of the fixing plate (67). Vertical plates (612) are symmetrically and slidably installed on both side walls of the square grooves (68). A pressing plate (616) is slidably installed on one side of the inner top surface of the heat treatment furnace body (1).

2. The heat treatment furnace for casting production according to claim 1, wherein: A universal wheel (8) is fixedly installed at the bottom of the telescopic end of the electric push rod (3). An observation window (9) is fixedly installed on one side of the heat treatment furnace body (1). A cleaning roller (62) is rotatably installed in a groove on the top of the placing plate (61). The cleaning rollers (62) are evenly arranged at equal distances, and there are no less than five cleaning rollers (62). Two lead screw parts (63) are symmetrically arranged. The number of push plates (64) is the same as that of the lead screw parts (63). A first spring (65) is fixedly connected between the push plate (64) and the sealing door (5).

3. The heat treatment furnace for casting production according to claim 2, characterized in that: The sealing door (5) is snap-fitted with the heat treatment furnace body (1). There are no less than four first springs (65). The front communication pipe (66) is slidably connected to the sealing door (5). The fixing plate (67) is located on the side of the heat treatment furnace body (1) close to the sealing door (5). There are no less than two square grooves (68). Transverse grooves (69) are symmetrically formed on the side walls of the square grooves (68).

4. The heat treatment furnace for casting production according to claim 3, characterized in that: A second spring (610) is fixedly installed inside the transverse groove (69). One end of the second spring (610) is fixedly connected to a moving rod (611). The moving rod (611) is slidably connected to the transverse groove (69). The end of the moving rod (611) away from the transverse groove (69) is fixedly connected to the vertical plate (612). Hypotenuses are symmetrically and fixedly connected to the outer sides of the vertical plate (612) and the pressing plate (616).

5. The heat treatment furnace for casting production according to claim 4, characterized in that: On the inner top surface of the heat treatment furnace body (1), fixed cylinders (613) are symmetrically and fixedly connected. Inside the fixed cylinder (613), a third spring (614) is fixedly connected. The bottom end of the third spring (614) is fixedly connected to a sliding rod (615). The sliding rod (615) is slidably connected to the fixed cylinder (613). The bottom end of the sliding rod (615) is fixedly connected to a pressing plate (616). The number of pressing plates (616) is the same as that of the square grooves (68). On one side of the back of the heat treatment furnace body (1), rear communication pipes (617) are symmetrically and fixedly installed. On one side of the top of the heat treatment furnace body (1), a breathing valve (618) is fixedly installed.

6. A heat treatment furnace for casting production according to claim 1, characterized in that: The sealing assembly (7) includes a mounting groove (71) opened on one side of the front. Inside the mounting groove (71), an airbag part (72) is fixedly installed. One side of the airbag part (72) is connected to an air pipe (73). On the upper part of one side of the front of the sealing door (5), a contact plate (74) is fixedly connected.

7. The heat treatment furnace for casting production according to claim 6, characterized in that: There are no less than three contact plates (74). Connecting plates (75) are fixedly connected between adjacent contact plates (74). On the top of the heat treatment furnace body (1), a fixed box (76) is fixedly connected. On one side of the top of the heat treatment furnace body (1) close to the sealing door (5), a vertical block (77) is fixedly connected.

8. A heat treatment furnace for casting production according to claim 7, characterized in that: The numbers of the fixed box (76) and the vertical block (77) are the same as that of the contact plates (74). Inside the vertical block (77), a cross bar (78) is slidably connected. One end of the cross bar (78) is fixedly connected to a resisting block (79). A fourth spring (710) is sleeved on the outer side of the cross bar (78).

9. The heat treatment furnace for casting production according to claim 8, wherein: Two ends of the fourth spring (710) are respectively fixedly connected to the vertical block (77) and the resisting block (79). The other end of the cross bar (78) is fixedly connected to a piston part (711). The piston part (711) is slidably connected to the fixed box (76). The end of the air pipe (73) far from the airbag part (72) is communicated with the fixed box (76).

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