Automatic annealing device for steel castings

Abstract

The present invention discloses an automatic annealing device for steel castings, comprising a chassis, a roller fixedly connected to the bottom of the chassis, a support vertical rod fixedly connected to the top of the chassis, an annealing mechanism fixedly connected to the top of the support vertical rod, a storage mechanism fixedly connected to the top of the chassis, a push handrail fixedly connected to the side wall of the chassis, and a conveying mechanism fixedly connected to the top of the annealing mechanism. The present invention relates to the technical field of annealing steel castings; when multiple heating cylinders anneal steel castings, multiple steel castings can be annealed at the same time, thereby improving the annealing efficiency of the equipment; the nitrogen inside the nitrogen inlet pipe can be preheated through the cooperation of the nitrogen inlet pipe, the first heating resistor wire, the second electric slide rail, the sliding sealing plate and the ultrasonic flaw detector to avoid the low temperature of the nitrogen when it enters the annealing box, resulting in uneven heating of the steel castings; at the same time, the steel castings can be monitored in real time to avoid the need for manual inspection of the steel castings by staff after the annealing fails.

Description

Technical Field

[0001] The invention relates to the technical field of steel casting annealing, in particular to an automatic annealing device for steel castings. Background Art

[0002] Annealing refers to a metal heat treatment process in which the metal is slowly heated to a certain temperature, maintained for a sufficient time, and then cooled at an appropriate rate. The purpose of annealing is to reduce hardness, improve machinability, eliminate residual stress, stabilize size, reduce deformation and crack tendency, refine grains, adjust structure, eliminate structural defects, uniform material structure and composition, improve material properties or prepare the structure for subsequent heat treatment.

[0003] Most existing automatic annealing devices for steel castings need to use other equipment to preheat the steel castings when annealing them, which increases the annealing time of the steel castings. At the same time, most equipment will directly input nitrogen into the annealing device, which can easily lead to uneven heating of the steel castings during annealing, affecting the annealing effect of the steel castings, and requiring staff to subsequently test the annealing effect of the steel castings.

[0004] To this end, the present invention provides an automatic annealing device for steel castings to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic annealing device for steel castings to solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic annealing device for steel castings, comprising a chassis, a roller is fixedly connected to the bottom of the chassis, a support vertical rod is fixedly connected to the top of the chassis, an annealing mechanism is fixedly connected to the top of the support vertical rod, a storage mechanism is fixedly connected to the top of the chassis, a push handrail is fixedly connected to the side wall of the chassis, a conveying mechanism is fixedly connected to the top of the annealing mechanism, the bottom of the annealing mechanism is fixedly connected to the top of the chassis, and the bottom of the annealing mechanism is fixedly connected to the top of the storage mechanism;

[0007] The annealing mechanism comprises an annealing box, the bottom of which is fixedly connected to the top of the supporting vertical rod, a heating chamber is provided in the annealing box, and a first heating resistance wire is fixedly connected to the inner wall of the heating chamber;

[0008] The storage mechanism comprises an oil storage bin, the bottom of which is fixedly connected to the top of the chassis, a material storage box is fixedly connected to the top of the oil storage bin, a feed pipe is connected to the top of the material storage box, a waste box is fixedly connected to the top of the chassis, and a waste pipe is connected to the top of the waste box;

[0009] The conveying mechanism comprises a conveying bin, the top of the annealing box is fixedly connected to the bottom of the conveying bin, a feeding hole is opened on the top of the conveying bin, a conveying belt is movably connected to the inner wall of the conveying bin, and a discharge port is opened at the bottom of the conveying bin.

[0010] Preferably: the annealing mechanism also includes a driving motor, the bottom of the driving motor is fixedly connected to the top of the chassis, the output end of the driving motor is fixedly connected to a transmission shaft, the side wall of the transmission shaft is fixedly connected to a connecting cross bar, one end of the connecting cross bar is fixedly connected to a heating cylinder, the inside of the heating cylinder is fixedly connected to a second heating resistance wire, the bottom side wall of the heating cylinder is fixedly connected to a first electric slide rail, the first electric slide rail is slidably connected to a sliding rubber plate through an electronic slider, an air supply bin is opened inside the annealing box, the inner wall of the air supply bin is fixedly connected to a nitrogen input pipe, the bottom of the inner wall of the annealing box is fixedly connected to a second electric slide rail, the second electric slide rail is slidably connected to a sliding sealing plate through an electronic slider, the top of the sliding sealing plate is fixedly connected to an ultrasonic flaw detector, the bottom of the annealing box is connected to an exhaust pipe, and a one-way valve is provided on the exhaust pipe.

[0011] Preferably, the nitrogen inlet pipe passes through the annealing box, the top of the sliding rubber plate is movably connected to the bottom of the heating cylinder, the bottom of the sliding sealing plate is slidably connected to the bottom of the inner wall of the annealing box, and the side wall of the transmission shaft is rotatably connected to the inner wall of the annealing box.

[0012] Preferably: the storage mechanism also includes a first gear, an inner wall of the first gear is fixedly connected to the side wall of the transmission shaft, the side wall of the first gear is slidably connected to a belt, the inner wall of the belt is rotatably connected to the second gear, the inner wall of the second gear is fixedly connected to a resistance round rod, the bottom of the resistance round rod is movably connected to a rotating round rod, the side wall of the rotating round rod is fixedly connected to a partition, the bottom of the rotating round rod is fixedly connected to a storage barrel, the top of the storage barrel is fixedly connected to a fixed vertical rod, the top of the fixed vertical rod is fixedly connected to a fixed ring, the top of the fixed ring is fixedly connected to a rubber pad, the bottom of the inner wall of the storage box is fixedly connected to a third electric slide rail, the top of the oil storage bin is connected to a telescopic paint spray pipe, and the inner wall of the storage box is movably connected to a trap door.

[0013] Preferably: the top of the telescopic paint spray tube is connected to the bottom of the storage barrel, one side of the partition is fixedly connected to the inner wall of the storage barrel, the third electric slide rail is slidably connected to the storage barrel through an electronic slider, the top of the feed pipe is connected to the bottom of the annealing box, and the top of the waste pipe is connected to the bottom of the annealing box.

[0014] Preferably: the conveying mechanism also includes a fourth electric slide rail, the top of the fourth electric slide rail is fixedly connected to the top of the inner wall of the conveying bin, the fourth electric slide rail is slidably connected to an electric rotating rod through an electronic slider, the side wall of the electric rotating rod is fixedly connected to an adhesion roller, the inner wall of the conveying bin is fixedly connected to a heating plate, and the bottom of the discharge port is connected to the top of the annealing box.

[0015] The present invention provides an automatic annealing device for steel castings. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The automatic annealing device for steel castings can clean and dry the steel castings when the conveyor belt is conveying the steel castings, through the cooperation of the heating plate, the fourth electric slide rail, the electric rotating rod and the bonding roller, to avoid impurities adhering to the surface of the steel castings during annealing. At the same time, the steel castings can be preheated to avoid uneven heating caused by direct annealing of the steel castings, which affects the annealing effect, and reduce the speed at which the steel castings hit the top of the fixed vertical rod to avoid damage to the fixed vertical rod by the impact.

[0017] (2) The automatic annealing device for steel castings can anneal multiple steel castings at the same time when multiple heating tubes are annealing the steel castings, thereby improving the annealing efficiency of the equipment. The nitrogen inside the nitrogen inlet pipe can be preheated by the cooperation of the nitrogen inlet pipe, the first heating resistor wire, the second electric slide rail, the sliding sealing plate and the ultrasonic flaw detector to avoid the low temperature of the nitrogen when it enters the annealing box, resulting in uneven heating of the steel castings. At the same time, the steel castings can be monitored in real time to avoid the need for manual inspection of the steel castings by staff after the annealing fails.

[0018] (3) The automatic annealing device for steel castings can spray paint on the steel castings when the intact steel castings enter the storage box through the cooperation of the oil storage bin, the telescopic paint spraying tube, the storage barrel, the fixed vertical rod, the fixed ring, the rubber cushion, the third electric slide rail, the storage box and the trap door, thereby increasing the storage time. At the same time, the steel castings can be automatically transported out of the storage box, making it more convenient for the staff to take out the steel castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the automatic annealing device for steel castings of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the annealing mechanism of the present invention;

[0021] Figure 3 It is a schematic diagram of the position structure of the ultrasonic flaw detector of the present invention;

[0022] Figure 4 It is a schematic diagram of the position structure of the drive motor of the present invention;

[0023] Figure 5It is a structural schematic diagram of the storage mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the material storage box of the present invention;

[0025] Figure 7 It is a schematic diagram of the position structure of the telescopic paint spraying tube of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the conveying mechanism of the present invention;

[0027] Fig. 9 It is a schematic diagram of the internal structure of the conveying bin of the present invention.

[0028] In the figure: 1, chassis; 2, roller; 3, support vertical rod; 4, push handrail; 5, annealing mechanism; 6, storage mechanism; 7, conveying mechanism; 50, annealing box; 501, gas delivery warehouse; 502, heating warehouse; 51, nitrogen input pipe; 52, first heating resistance wire; 53, driving motor; 54, transmission shaft; 55, connecting cross bar; 551, heating cylinder; 552, second heating resistance wire; 56, first electric slide rail; 561, sliding rubber plate; 57, second electric slide rail; 571, sliding sealing plate; 572, ultrasonic flaw detector; 58, exhaust pipe; 59, one-way valve; 60, The first gear; 601, belt; 602, the second gear; 61, resistor rod; 62, oil storage bin; 621, telescopic paint spray tube; 63, storage box; 631, trap door; 632, feed pipe; 64, waste box; 641, waste pipe; 65, storage barrel; 651, partition; 66, rotating rod; 67, fixed vertical rod; 671, fixed ring; 672, rubber cushion; 68, third electric slide rail; 70, conveying bin; 71, feed hole; 72, fourth electric slide rail; 73, electric rotating rod; 74, adhesion roller; 75, heating plate; 76, conveyor belt; 77, discharge port. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 4, an automatic annealing device for steel castings, comprising a chassis 1, a roller 2 is fixedly connected to the bottom of the chassis 1, a supporting vertical rod 3 is fixedly connected to the top of the chassis 1, an annealing mechanism 5 is fixedly connected to the top of the supporting vertical rod 3, a storage mechanism 6 is fixedly connected to the top of the chassis 1, a pushing handrail 4 is fixedly connected to the side wall of the chassis 1, a conveying mechanism 7 is fixedly connected to the top of the annealing mechanism 5, the bottom of the annealing mechanism 5 is fixedly connected to the top of the chassis 1, and the bottom of the annealing mechanism 5 is fixedly connected to the top of the storage mechanism 6;

[0032] The annealing mechanism 5 includes an annealing box 50, the bottom of which is fixedly connected to the top of the supporting vertical rod 3, a heating chamber 502 is provided in the annealing box 50, and a first heating resistance wire 52 is fixedly connected to the inner wall of the heating chamber 502;

[0033] The storage mechanism 6 includes an oil storage bin 62, the bottom of the oil storage bin 62 is fixedly connected to the top of the chassis 1, a material storage box 63 is fixedly connected to the top of the oil storage bin 62, a feed pipe 632 is connected to the top of the material storage box 63, a waste box 64 is fixedly connected to the top of the chassis 1, and a waste pipe 641 is connected to the top of the waste box 64;

[0034] The conveying mechanism 7 includes a conveying bin 70. The top of the annealing box 50 is fixedly connected to the bottom of the conveying bin 70. A feed hole 71 is provided on the top of the conveying bin 70. A conveyor belt 76 is movably connected to the inner wall of the conveying bin 70. A discharge port 77 is provided at the bottom of the conveying bin 70.

[0035] The annealing mechanism 5 also includes a driving motor 53, the bottom of the driving motor 53 is fixedly connected to the top of the chassis 1, the output end of the driving motor 53 is fixedly connected to a transmission shaft 54, the side wall of the transmission shaft 54 ​​is fixedly connected to a connecting cross bar 55, one end of the connecting cross bar 55 is fixedly connected to a heating cylinder 551, the interior of the heating cylinder 551 is fixedly connected to a second heating resistor 552, the bottom side wall of the heating cylinder 551 is fixedly connected to a first electric slide rail 56, the first electric slide rail 56 is slidably connected to a sliding rubber plate 561 through an electronic slider, and a gas delivery bin 501 is opened inside the annealing box 50, and the inner wall of the gas delivery bin 501 is fixedly connected to There is a nitrogen input pipe 51, the bottom of the inner wall of the annealing box 50 is fixedly connected to a second electric slide rail 57, the second electric slide rail 57 is slidably connected to a sliding sealing plate 571 through an electronic slider, the top of the sliding sealing plate 571 is fixedly connected to an ultrasonic flaw detector 572, the bottom of the annealing box 50 is connected to an exhaust pipe 58, and a one-way valve 59 is provided on the exhaust pipe 58, the nitrogen input pipe 51 runs through the annealing box 50, the top of the sliding rubber plate 561 is movably connected to the bottom of the heating cylinder 551, the bottom of the sliding sealing plate 571 is slidably connected to the bottom of the inner wall of the annealing box 50, and the side wall of the transmission shaft 54 ​​is rotatably connected to the inner wall of the annealing box 50;

[0036] It should be noted that the drive motor 53 is started, and the drive motor 53 drives the heating cylinder 551 to rotate to the bottom of the discharge port 77 through the transmission shaft 54 ​​and the connecting cross bar 55, so that the steel castings conveyed by the conveyor belt 76 can always enter the heating cylinder 551, and the first heating resistor 52 and the second heating resistor 552 are started to uniformly heat the steel castings in the annealing box 50 to avoid uneven heating of the steel castings, which may cause stress inside the steel castings and affect the annealing effect of the equipment. The ultrasonic flaw detector 572 is started, and the ultrasonic flaw detector 572 always performs flaw detection monitoring on the steel castings during the annealing process of the steel castings. The nitrogen input pipe 51 is started, and the nitrogen input pipe 51 inputs nitrogen into the annealing box 50, and discharges the air inside the annealing box 50 through the second electric slide rail 57 to avoid oxidation reaction between the steel castings and oxygen in the air during annealing. During heating, the nitrogen inside the nitrogen input pipe 51 can be heated to avoid uneven heating of the steel casting due to the low temperature when the nitrogen enters the annealing box 50. After the annealing of the steel casting is completed, the first electric slide rail 56 and the second electric slide rail 57 are started. The first electric slide rail 56 and the second electric slide rail 57 respectively drive the sliding rubber plate 561 and the sliding sealing plate 571 to move, and stop supporting the steel casting. When the annealing monitoring of the steel casting at the top of the ultrasonic flaw detector 572 is intact, it enters the storage box 63 through the feeding pipe 632 for storage. When the ultrasonic flaw detector 572 detects defective products, the driving motor 53 drives the defective products to move to the top of the waste pipe 641 through the transmission shaft 54, the connecting cross bar 55 and the second heating resistor wire 552. The defective products enter the waste box 64 through the waste pipe 641 for separate storage, thereby avoiding the mixed storage of intact steel castings and defective products.

[0037] Embodiment 2:

[0038] See also Figure 5-Figure 7, an automatic annealing device for steel castings, the storage mechanism 6 also includes a first gear 60, the inner wall of the first gear 60 is fixedly connected to the side wall of the transmission shaft 54, the side wall of the first gear 60 is slidably connected to a belt 601, the inner wall of the belt 601 is rotatably connected to a second gear 602, the inner wall of the second gear 602 is fixedly connected to a resistance rod 61, the bottom of the resistance rod 61 is movably connected to a rotating rod 66, the side wall of the rotating rod 66 is fixedly connected to a partition 651, the bottom of the rotating rod 66 is fixedly connected to a storage barrel 65, the top of the storage barrel 65 is fixedly connected to a fixed vertical rod 67, the top of the fixed vertical rod 67 is fixedly connected A fixed ring 671 is connected, a rubber cushion 672 is fixedly connected to the top of the fixed ring 671, a third electric slide rail 68 is fixedly connected to the bottom of the inner wall of the storage box 63, a telescopic paint spraying pipe 621 is connected to the top of the oil storage bin 62, a trap door 631 is movably connected to the inner wall of the storage box 63, the top of the telescopic paint spraying pipe 621 is connected to the bottom of the storage barrel 65, one side of the partition 651 is fixedly connected to the inner wall of the storage barrel 65, the third electric slide rail 68 is slidably connected to the storage barrel 65 through an electronic slider, the top of the feed pipe 632 is connected to the bottom of the annealing box 50, and the top of the waste pipe 641 is connected to the bottom of the annealing box 50;

[0039] It should be noted that when the transmission shaft 54 ​​rotates, the transmission shaft 54 ​​drives the resistance rod 61 to rotate through the first gear 60, the belt 601 and the second gear 602, the resistance rod 61 drives the storage barrel 65 to rotate through the rotating rod 66, and the storage barrel 65 drives the fixed ring 671 to rotate through the fixed vertical rod 67, so that the fixed ring 671 is always located at the bottom of the feed pipe 632 to prevent the steel casting from falling directly to the top of the storage barrel 65, and the rubber cushion 672 is provided to prevent the steel casting from directly hitting the top of the fixed ring 671 and causing damage. When the steel casting falls on the top of the rubber cushion 672, the telescopic paint spray tube 621 is started, and the telescopic paint spray tube 621 is extended into the storage barrel 65. The telescopic paint spray tube 621 sprays the paint inside the oil storage bin 62 to the surface of the steel casting, so that the steel casting can be stored for a longer time. When the top of the storage barrel 65 is full of steel castings, the staff opens the trap door 631 and starts the third electric slide rail 68. The third electric slide rail 68 drives the storage barrel 65 to move the storage drive motor 53, so that the staff can take out the steel castings more conveniently.

[0040] Embodiment three:

[0041] See also Figure 8-Figure 9 , an automatic annealing device for steel castings, the conveying mechanism 7 also includes a fourth electric slide rail 72, the top of the fourth electric slide rail 72 is fixedly connected to the top of the inner wall of the conveying bin 70, the fourth electric slide rail 72 is slidably connected to an electric rotating rod 73 through an electronic slider, the side wall of the electric rotating rod 73 is fixedly connected to an adhesion roller 74, the inner wall of the conveying bin 70 is fixedly connected to a heating plate 75, and the bottom of the discharge port 77 is connected to the top of the annealing box 50;

[0042] It should be noted that the staff places the steel casting into the conveying bin 70 through the feed hole 71, starts the electric rotating rod 73, and the electric rotating rod 73 drives the adhesion roller 74 to rotate to brush and adhere the surface of the steel casting to avoid impurities adhering to the surface of the steel casting during annealing. The fourth electric slide rail 72 is started, and the fourth electric slide rail 72 drives the adhesion roller 74 to approach the steel casting through the electric rotating rod 73 to reduce the falling speed of the steel casting, so as to avoid the steel casting colliding and damaging the conveyor belt 76. The conveyor belt 76 is started to convey the steel casting, and the heating plate 75 is started to preheat the steel casting being conveyed to avoid direct heating and annealing of the steel casting resulting in poor annealing effect. The conveyor belt 76 conveys the steel casting into the annealing box 50 through the discharge port 77.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] During operation, the staff places the steel casting through the feed hole 71 into the conveying bin 70, starts the electric rotating rod 73, and the electric rotating rod 73 drives the adhesion roller 74 to rotate to scrub and adhere the surface of the steel casting to avoid impurities adhering to the surface of the steel casting during annealing. The fourth electric slide rail 72 is started, and the fourth electric slide rail 72 drives the adhesion roller 74 to approach the steel casting through the electric rotating rod 73 to reduce the falling speed of the steel casting, so as to avoid the steel casting hitting and damaging the conveyor belt 76. The conveyor belt 76 is started to convey the steel casting, and the heating plate 75 is started. The heating plate 75 preheats the steel casting being conveyed to avoid the poor annealing effect caused by direct heating and annealing of the steel casting. The conveyor belt 76 conveys the steel casting into the annealing box 50 through the discharge port 77.

[0045] The drive motor 53 is started. The drive motor 53 drives the heating cylinder 551 to rotate to the bottom of the discharge port 77 through the transmission shaft 54 ​​and the connecting cross bar 55, so that the steel castings conveyed by the conveyor belt 76 can always enter the heating cylinder 551. The first heating resistor 52 and the second heating resistor 552 are started to uniformly heat the steel castings in the annealing box 50 to avoid uneven heating of the steel castings, which may cause stress inside the steel castings and affect the annealing effect of the equipment. The ultrasonic flaw detector 572 is started. During the annealing process of the steel castings, the ultrasonic flaw detector 572 always performs flaw detection monitoring on the steel castings. The nitrogen input pipe 51 is started. The nitrogen input pipe 51 inputs nitrogen into the annealing box 50 and discharges the air inside the annealing box 50 through the second electric slide rail 57 to avoid oxidation reaction between the steel castings and oxygen in the air during annealing. The first heating resistor 52 heats the steel castings. The nitrogen inside the nitrogen input pipe 51 can be heated to avoid uneven heating of the steel casting due to the low temperature when the nitrogen enters the annealing box 50. After the annealing of the steel casting is completed, the first electric slide rail 56 and the second electric slide rail 57 are started. The first electric slide rail 56 and the second electric slide rail 57 respectively drive the sliding rubber plate 561 and the sliding sealing plate 571 to move, and stop supporting the steel casting. When the annealing of the steel casting at the top of the ultrasonic flaw detector 572 is monitored to be intact, it enters the storage box 63 through the feed pipe 632 for storage. When the ultrasonic flaw detector 572 detects defective products, the drive motor 53 drives the defective products to move to the top of the waste pipe 641 through the transmission shaft 54, the connecting cross bar 55 and the second heating resistor wire 552. The defective products enter the waste box 64 through the waste pipe 641 for separate storage, so as to avoid the mixed storage of intact steel castings and defective products.

[0046] When the transmission shaft 54 ​​rotates, the transmission shaft 54 ​​drives the resistance rod 61 to rotate through the first gear 60, the belt 601 and the second gear 602, and the resistance rod 61 drives the storage barrel 65 to rotate through the rotating rod 66, and the storage barrel 65 drives the fixed ring 671 to rotate through the fixed vertical rod 67, so that the fixed ring 671 is always located at the bottom of the feed pipe 632 to prevent the steel casting from falling directly to the top of the storage barrel 65. The setting of the rubber cushion 672 prevents the steel casting from directly hitting the top of the fixed ring 671 and being damaged. When the steel casting falls on the top of the rubber cushion 672, the telescopic paint spray tube 621 is started, and the telescopic paint spray tube 621 is extended into the interior of the storage barrel 65. The telescopic paint spray tube 621 sprays the paint inside the oil storage bin 62 to the surface of the steel casting, so that the steel casting can be stored for a longer time. When the top of the storage barrel 65 is full of steel castings, the staff opens the trap door 631 and starts the third electric slide rail 68. The third electric slide rail 68 drives the storage barrel 65 to move the storage drive motor 53, so that the staff can take out the steel castings more conveniently.

[0047] 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.

[0048] 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. An automatic annealing device for steel castings, comprising a chassis (1), characterized in that: The bottom of the chassis (1) is fixedly connected to a roller (2), the top of the chassis (1) is fixedly connected to a supporting vertical rod (3), the top of the supporting vertical rod (3) is fixedly connected to an annealing mechanism (5), the top of the chassis (1) is fixedly connected to a storage mechanism (6), the side wall of the chassis (1) is fixedly connected to a pushing handrail (4), the top of the annealing mechanism (5) is fixedly connected to a conveying mechanism (7), the bottom of the annealing mechanism (5) is fixedly connected to the top of the chassis (1), and the bottom of the annealing mechanism (5) is fixedly connected to the top of the storage mechanism (6); The annealing mechanism (5) comprises an annealing box (50), the bottom of the annealing box (50) is fixedly connected to the top of the supporting vertical rod (3), a heating chamber (502) is provided in the annealing box (50), and a first heating resistance wire (52) is fixedly connected to the inner wall of the heating chamber (502); The annealing mechanism (5) further comprises a driving motor (53), the bottom of the driving motor (53) being fixedly connected to the top of the chassis (1), the output end of the driving motor (53) being fixedly connected to a transmission shaft (54), the side wall of the transmission shaft (54) being fixedly connected to a connecting cross bar (55), one end of the connecting cross bar (55) being fixedly connected to a heating cylinder (551), the interior of the heating cylinder (551) being fixedly connected to a second heating resistance wire (552), the bottom side wall of the heating cylinder (551) being fixedly connected to a first electric slide rail (56), the first electric slide rail (56) being connected to a first electric slide rail through an electronic slider. A sliding rubber plate (561) is slidably connected, a gas delivery chamber (501) is provided inside the annealing box (50), a nitrogen gas input pipe (51) is fixedly connected to the inner wall of the gas delivery chamber (501), a second electric slide rail (57) is fixedly connected to the bottom of the inner wall of the annealing box (50), the second electric slide rail (57) is slidably connected to a sliding sealing plate (571) via an electronic slider, an ultrasonic flaw detector (572) is fixedly connected to the top of the sliding sealing plate (571), the bottom of the annealing box (50) is connected to an exhaust pipe (58), and a one-way valve (59) is provided on the exhaust pipe (58); The nitrogen inlet pipe (51) passes through the annealing box (50), the top of the sliding rubber plate (561) is movably connected to the bottom of the heating cylinder (551), the bottom of the sliding sealing plate (571) is slidably connected to the bottom of the inner wall of the annealing box (50), and the side wall of the transmission shaft (54) is rotatably connected to the inner wall of the annealing box (50); The storage mechanism (6) comprises an oil storage bin (62), the bottom of the oil storage bin (62) being fixedly connected to the top of the chassis (1), the top of the oil storage bin (62) being fixedly connected to a material storage box (63), the top of the material storage box (63) being connected to a material feed pipe (632), the top of the chassis (1) being fixedly connected to a waste box (64), the top of the waste box (64) being connected to a waste pipe (641); The conveying mechanism (7) comprises a conveying bin (70), the top of the annealing box (50) is fixedly connected to the bottom of the conveying bin (70), a feeding hole (71) is provided on the top of the conveying bin (70), a conveying belt (76) is movably connected to the inner wall of the conveying bin (70), and a discharge port (77) is provided on the bottom of the conveying bin (70).

2. The automatic annealing device for steel castings according to claim 1, characterized in that: The storage mechanism (6) further comprises a first gear (60), the inner wall of the first gear (60) being fixedly connected to the side wall of the transmission shaft (54), the side wall of the first gear (60) being slidably connected to a belt (601), the inner wall of the belt (601) being rotatably connected to a second gear (602), the inner wall of the second gear (602) being fixedly connected to a resistance round rod (61), the bottom of the resistance round rod (61) being movably connected to a rotating round rod (66), the side wall of the rotating round rod (66) being fixedly connected to a partition (651), the rotating round rod (66) being rotatably connected to the side wall of the first gear (60), and the rotating round rod (66) being fixedly connected to the side wall of the first gear (60). The bottom of the movable circular rod (66) is fixedly connected to a material storage barrel (65), the top of the material storage barrel (65) is fixedly connected to a fixed vertical rod (67), the top of the fixed vertical rod (67) is fixedly connected to a fixed circular ring (671), the top of the fixed circular ring (671) is fixedly connected to a rubber cushion (672), the bottom of the inner wall of the material storage box (63) is fixedly connected to a third electric slide rail (68), the top of the oil storage bin (62) is connected to a telescopic paint spray pipe (621), and the inner wall of the material storage box (63) is movably connected to a trap door (631).

3. The automatic annealing device for steel castings according to claim 2, characterized in that: The top of the telescopic paint spraying tube (621) is connected to the bottom of the material storage barrel (65), one side of the partition plate (651) is fixedly connected to the inner wall of the material storage barrel (65), the third electric slide rail (68) is slidably connected to the material storage barrel (65) via an electronic slider, the top of the feed pipe (632) is connected to the bottom of the annealing box (50), and the top of the waste pipe (641) is connected to the bottom of the annealing box (50).

4. The automatic annealing device for steel castings according to claim 1, characterized in that: The conveying mechanism (7) further comprises a fourth electric slide rail (72), the top of the fourth electric slide rail (72) being fixedly connected to the top of the inner wall of the conveying bin (70), the fourth electric slide rail (72) being slidably connected to an electric rotating rod (73) via an electronic slider, the side wall of the electric rotating rod (73) being fixedly connected to an adhesive roller (74), the inner wall of the conveying bin (70) being fixedly connected to a heating plate (75), and the bottom of the discharge port (77) being connected to the top of the annealing box (50).

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