Automatic casting device of intermediate frequency induction furnace and control method thereof

Abstract

This invention discloses an automatic casting device and control method for a medium-frequency induction furnace, comprising an automatic casting assembly. The automatic casting assembly houses a medium-frequency induction furnace body, and a casting nozzle is constructed at the furnace body's discharge port. The automatic casting assembly includes a support assembly for supporting the furnace body and a tilting auxiliary assembly for tilting the furnace. The support assembly includes two bases and two support frames respectively constructed at the top of the two bases. This automatic casting device and control method for a medium-frequency induction furnace employs a three-point tilting method with two-point support and one-point drive, significantly improving the tilting speed and stability, increasing casting efficiency, reducing the force between the furnace body's outer surface and the rotating shaft, and providing support for the furnace body when not tilting. This extends the service life of the rotating shaft, eliminates safety hazards, and reduces the risk of molten metal spillage due to shaft breakage.

Description

Technical Field

[0001] This invention belongs to the field of casting processing technology, specifically relating to an automatic casting device for a medium-frequency induction furnace and its control method. Background Technology

[0002] An intermediate frequency furnace is a power supply device that converts 50Hz AC power into intermediate frequency power. It rectifies three-phase AC power into DC power, then converts the DC power into adjustable intermediate frequency current, which is supplied to the intermediate frequency alternating current flowing through the capacitor and induction coil. This generates high-density magnetic lines of force in the induction coil, which is made of hollow copper tubes. These lines of force cut through the metal material placed in the induction coil, generating large eddy currents in the metal material. This, in turn, generates very high temperatures in the furnace, heating or melting the metal inside.

[0003] After melting the metal material, the current medium-frequency induction furnace often needs to be flipped over with the support of a support frame installed on the outside of the furnace, so as to transfer the molten metal from the furnace cavity to the ladle mold.

[0004] However, because the furnace is tilted by the support frame, a large force is easily generated between the outer surface of the furnace body and the rotating shaft on the support frame. When the furnace is tilted frequently during peak operation, the service life of the rotating shaft will be greatly shortened, which poses a certain safety hazard. Regular inspection and replacement are required. Otherwise, there is a risk that the molten metal inside the furnace will spill out due to the broken rotating shaft. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic casting device for a medium-frequency induction furnace and its control method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic casting device for a medium-frequency induction furnace and its control method, comprising an automatic casting component;

[0007] The automatic casting assembly contains a medium-frequency induction furnace body, and a casting nozzle is constructed at the discharge port of the medium-frequency induction furnace body. The automatic casting assembly includes a support assembly for supporting the medium-frequency induction furnace body and a tilting auxiliary assembly for tilting the furnace.

[0008] The support assembly includes two bases and two support frames respectively constructed on the top of the two bases. The top of the two support frames facing each other is provided with a through hole for the rotation of the shaft, and a load-bearing component is fixedly installed on the two shafts.

[0009] The tilting furnace auxiliary component includes an arc-shaped guide seat. Arc-shaped toothed plates are welded and fixed on both sides of the inner arc surface of the arc-shaped guide seat. A T-shaped groove for sliding T-shaped slide table is centrally provided at the top of the arc-shaped guide seat. A support member welded and fixed to the bearing component is constructed at the top of the T-shaped slide table. Motors are centrally fixedly installed on both sides of the top of the T-shaped slide table. Gears are fixedly installed on the motor shafts of the two motors. The gears mesh with the arc-shaped toothed plates.

[0010] Preferably, the supporting component includes an annular plate, and each of the two sides of the top of the annular plate is provided with a column.

[0011] Preferably, two columns are symmetrically constructed on one side of the top of the annular plate, and the tops of the columns on the same side and the columns together are constructed with an arc-shaped limiting plate. A through hole for fixing and installing the rotating shaft is provided in the center of one side of the arc-shaped limiting plate.

[0012] Preferably, the support includes a support base constructed on the top of the T-shaped slide, and support arms are welded and fixed on both sides of the top of the support base. The tops of the two support arms are respectively constructed on both sides of the bottom of the annular plate.

[0013] Preferably, the bottom end of the arc-shaped guide seat is provided with a side plate on the side away from the main body of the medium-frequency induction furnace, and a bearing plate is provided together between the other side of the bottom end of the arc-shaped guide seat and the bottom end of the side plate.

[0014] Preferably, a base plate is constructed between the opposing surfaces of the two bases, and the two base plates are respectively constructed on both sides of the support plate.

[0015] Preferably, both ends of the base are provided with extension ears, and the top of the extension ears is provided with a through groove in the center.

[0016] A control method for an automatic casting device, used in an automatic casting device for a medium-frequency induction furnace, includes the following steps:

[0017] S1. Equipment Installation

[0018] The device is fixed by passing four bolts through the through holes on the four extension ears and pressing them into the floor of the workshop. After fixing, the main body of the medium frequency induction furnace is placed into the bearing assembly by the lifting equipment, supported by the annular plate, and limited by the two arc-shaped limiting plates.

[0019] S2, Melting of metallic materials

[0020] By putting metal materials into the main body of the medium-frequency induction furnace, the metal materials are melted by the main body of the medium-frequency induction furnace to meet the requirements of casting.

[0021] S3. Preparations before tilting the furnace

[0022] By placing the workpiece's casting mold in front of the automatic casting assembly, positioning it at the discharge position of the casting nozzle, and keeping personnel away;

[0023] S4, Tilting Furnace

[0024] By starting two electric motors, two gears are driven to rotate, which in turn mesh with two arc-shaped toothed plates to move the T-shaped slide and the support base with two support arms together. This causes the load-bearing component to rotate around the two rotating shafts, thus completing the pouring of the metal material inside the medium-frequency induction furnace body into the mold, thereby completing the automatic casting of the workpiece.

[0025] S5. Post-tilting treatment of the furnace

[0026] After the tilting is completed, the two motors are restarted to drive the two gears to reverse, which facilitates the engagement of the two arc-shaped toothed plates to move the T-shaped slide and the support base with two support arms together, completing the reset of the main body of the medium frequency induction furnace for the next stage of processing. If another mold needs to be cast, the reset distance can be shortened, thereby shortening the time required for recasting.

[0027] The technical effects and advantages of this invention are as follows: The automatic casting device and control method for medium-frequency induction furnace benefit from the setting of the support component and the tilting auxiliary component. The main body of the medium-frequency induction furnace is supported by the bearing component, and the bearing component is supported by two rotating support frames with rotating shafts, so as to reduce the force between the outer surface of the furnace body and the rotating shaft, thereby improving the service life of the rotating shaft. The support base with two support arms constructed by the T-shaped slide table supports the bearing component carrying the main body of the medium-frequency induction furnace when the furnace is not tilted, reducing the pressure on the rotating shaft, thereby further improving the service life of the rotating shaft, eliminating safety hazards, reducing the frequency of inspection and replacement, and reducing the risk of molten metal spilling out of the furnace due to rotating shaft breakage.

[0028] Thanks to the installation of the tilting auxiliary components, by starting two motors and driving two gears to rotate, the T-shaped slide table is displaced within the arc-shaped guide seat with the help of two arc-shaped toothed plates. This causes the supporting component carrying the main body of the medium-frequency induction furnace to rotate around the two rotating shafts. The three-point tilting method with two-point support and one-point drive greatly improves the tilting speed and stability, thereby increasing the casting efficiency and making it highly practical. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the automatic casting component of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the support component of the present invention;

[0032] Figure 4 This is a schematic diagram of the tilting furnace auxiliary component of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the carrier component of the present invention.

[0034] In the diagram: 1. Automatic casting assembly; 2. Medium frequency induction furnace body; 3. Casting nozzle; 4. Support assembly; 401. Base; 402. Support frame; 403. Rotating shaft; 404. Extension ear; 405. Base plate; 5. Tilting auxiliary assembly; 501. Bearing plate; 502. Side plate; 503. Arc-shaped guide seat; 504. Arc-shaped toothed plate; 505. T-shaped slide table; 506. Motor; 507. Gear; 508. Support seat; 509. Support arm; 6. Bearing assembly; 601. Annular plate; 602. Column one; 603. Column two; 604. Arc-shaped limiting plate. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] To reduce the risk of molten metal spilling out of the furnace due to the breakage of the 403 rotating shaft, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, an automatic casting device for a medium-frequency induction furnace and its control method include an automatic casting component 1. A medium-frequency induction furnace body 2 is movably disposed within the automatic casting component 1, and a casting nozzle 3 is constructed at the discharge port of the medium-frequency induction furnace body 2. The automatic casting component 1 includes a support component 4 for supporting the medium-frequency induction furnace body 2 and a tilting auxiliary component 5 for tilting the furnace. The support component 4 includes two bases 401 and two support frames 402 respectively constructed at the top of the two bases 401. The tops of the facing surfaces of the two support frames 402 each have a through hole centrally located for rotating shafts 403. A bearing component 6 is fixedly installed on both rotating shafts 403. The bearing assembly 6 supports the main body 2 of the medium-frequency induction furnace and is supported by two rotatably mounted support frames 402, which reduce the force between the outer surface of the furnace body and the rotating shaft 403, thereby improving the service life of the rotating shaft 403. The support base 508 with two support arms 509, constructed in conjunction with the T-shaped slide table 505, supports the bearing assembly 6 that supports the main body 2 of the medium-frequency induction furnace when the furnace is not tilted, reducing the pressure on the rotating shaft 403, thereby further improving the service life of the rotating shaft 403, eliminating safety hazards, reducing the frequency of inspection and replacement, and reducing the risk of molten metal spilling out of the furnace due to the breakage of the rotating shaft 403.

[0037] To improve the speed and stability of the furnace tilting process, thereby increasing casting efficiency, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the tilting furnace auxiliary component 5 includes an arc-shaped guide seat 503. Arc-shaped toothed plates 504 are welded and fixed to both sides of the inner arc surface of the arc-shaped guide seat 503. A T-shaped groove for sliding a T-shaped slide table 505 is centrally located at the top of the arc-shaped guide seat 503. A support member welded and fixed to the bearing component 6 is constructed at the top of the T-shaped slide table 505. The support member includes a support base 508 constructed at the top of the T-shaped slide table 505. Support arms 509 are welded and fixed to both sides of the top of the support base 508. The tops of the two support arms 509 are respectively constructed on both sides of the bottom end of the annular plate 601. The top of the T-shaped slide table 505... Both ends are centrally mounted with motors 506, and gears 507 are fixedly mounted on the motor shafts of both motors 506. The gears 507 mesh with the arc-shaped toothed plates 504. By starting the two motors 506, the two gears 507 are driven to rotate, so that with the help of the two arc-shaped toothed plates 504, the T-shaped slide 505 can be displaced within the arc-shaped guide seat 503. This drives the bearing assembly 6, which carries the main body 2 of the medium-frequency induction furnace, to rotate around the two rotating shafts 403. The three-point tilting method with two-point support and one-point drive greatly improves the tilting speed and stability, thereby improving the casting efficiency and making it highly practical.

[0038] To prevent accidents, such as Figure 3 , Figure 5 As shown, preferably, the bearing component 6 includes an annular plate 601. Column 1 602 is constructed on both sides of the top of the annular plate 601. Two columns 2 603 are symmetrically constructed on one side of the top of the annular plate 601. The tops of the columns 1 602 and 2 603 on the same side are jointly constructed with an arc-shaped limiting plate 604. A through hole for fixing the rotating shaft 403 is centrally located on one side of the arc-shaped limiting plate 604. The rotating shaft 403 is fixed through the through hole in the arc-shaped limiting plate 604 to improve its connection strength and prevent accidents.

[0039] To achieve the connection between support component 4 and tilting auxiliary component 5, such as Figure 2 , Figure 3 , Figure 4 As shown, preferably, a side plate 502 is constructed on the side of the bottom of the arc-shaped guide seat 503 away from the medium-frequency induction furnace body 2, and a bearing plate 501 is constructed together between the other side of the bottom of the arc-shaped guide seat 503 and the bottom of the side plate 502. A base plate 405 is constructed between the opposing surfaces of the two bases 401, and the two base plates 405 are respectively constructed on both sides of the bearing plate 501. The bearing plate 501 is connected to the two bases 401 through the two base plates 405, thereby realizing the connection between the support component 4 and the tilting auxiliary component 5.

[0040] To secure the device, such as Figure 3 As shown, preferably, both ends of the base 401 are provided with extension ears 404, and the top of the extension ears 404 is provided with a through groove in the center. The device can be fixed by passing four bolts through the through holes on the four extension ears 404 and screwing them into the floor of the workshop.

[0041] A control method for an automatic casting device, used in an automatic casting device for a medium-frequency induction furnace, includes the following steps:

[0042] S1. Equipment Installation

[0043] The device is fixed by passing four bolts through the through holes on the four extension ears 404 and pressing them into the floor of the workshop. After fixing, the medium frequency induction furnace body 2 is placed into the bearing assembly 6 by the lifting equipment, supported by the annular plate 601, and limited by the two arc-shaped limiting plates 604.

[0044] S2, Melting of metallic materials

[0045] By putting metal materials into the medium-frequency induction furnace body 2, the metal materials are melted by the medium-frequency induction furnace body 2 to meet the requirements of casting.

[0046] S3. Preparations before tilting the furnace

[0047] By placing the workpiece's casting mold in front of the automatic casting assembly 1, positioning it at the discharge position of the casting nozzle 3, and keeping personnel away;

[0048] S4, Tilting Furnace

[0049] By starting two motors 506, two gears 507 are driven to rotate, which in turn mesh with two arc-shaped toothed plates 504 to drive the T-shaped slide table 505 and the support base 508 with two support arms 509 to move together. This causes the bearing assembly 6 to rotate around the two rotating shafts 403, thus completing the pouring of the metal material in the main body 2 of the medium frequency induction furnace into the mold, thereby completing the automatic casting of the workpiece.

[0050] S5. Post-tilting treatment of the furnace

[0051] After the tilting is completed, the two motors 506 are restarted to drive the two gears 507 to reverse, so that the two arc-shaped toothed plates 504 can mesh together to drive the T-shaped slide (505) and the support base 508 with two support arms 509 to move together, thus completing the reset of the medium frequency induction furnace body 2 for the next stage of processing. If another mold needs to be cast, the reset distance can be shortened, thereby shortening the time required for recasting.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic casting device for a medium-frequency induction furnace, comprising an automatic casting assembly (1); Its features are: The automatic casting assembly (1) is movably provided with a medium frequency induction furnace body (2), and a casting nozzle (3) is constructed at the discharge port of the medium frequency induction furnace body (2). The automatic casting assembly (1) includes a support assembly (4) for supporting the medium frequency induction furnace body (2) and a tilting auxiliary assembly (5) for tilting the furnace. The support assembly (4) includes two bases (401) and two support frames (402) respectively constructed on the top of the two bases (401). The top of the two support frames (402) facing each other is provided with a through hole for the rotating shaft (403) to rotate. The two rotating shafts (403) are fixedly installed with a bearing assembly (6). The tilting furnace auxiliary component (5) includes an arc-shaped guide seat (503). Arc-shaped toothed plates (504) are welded and fixed on both sides of the inner arc surface of the arc-shaped guide seat (503). A T-shaped groove for sliding T-shaped slide table (505) is provided in the center of the top of the arc-shaped guide seat (503). The top of the T-shaped slide table (505) is constructed with a support member welded and fixed to the bearing component (6). Motors (506) are fixedly installed in the center on both sides of the top of the T-shaped slide table (505). Gears (507) are fixedly installed on the motor shafts of the two motors (506). The gears (507) mesh with the arc-shaped toothed plates (504). The bearing component (6) includes an annular plate (601). Column 1 (602) is constructed on both sides of the top of the annular plate (601). Two columns 2 (603) are symmetrically constructed on one side of the top of the annular plate (601). The tops of columns 1 (602) and columns 2 (603) on the same side are jointly constructed with an arc-shaped limiting plate (604). A through hole for fixing the rotating shaft (403) is provided in the center of one side of the arc-shaped limiting plate (604). The support includes a support base (508) constructed on the top of the T-shaped slide (505), and support arms (509) are welded and fixed on both sides of the top of the support base (508). The tops of the two support arms (509) are respectively constructed on both sides of the bottom of the annular plate (601).

2. The automatic casting device for a medium-frequency induction furnace according to claim 1, characterized in that: The bottom end of the arc-shaped guide seat (503) is provided with a side plate (502) on the side away from the main body (2) of the medium frequency induction furnace, and a bearing plate (501) is provided together between the other side of the bottom end of the arc-shaped guide seat (503) and the bottom end of the side plate (502).

3. The automatic casting device for a medium-frequency induction furnace according to claim 2, characterized in that: A base plate (405) is constructed between the opposing surfaces of the two bases (401), and the two base plates (405) are respectively constructed on both sides of the support plate (501).

4. The automatic casting device for a medium-frequency induction furnace according to claim 1, characterized in that: Both ends of the base (401) are provided with extension ears (404), and the top of the extension ears (404) is provided with a through groove in the center.

5. A control method for an automatic casting device, used in the automatic casting device for a medium-frequency induction furnace as described in any one of claims 1 to 4, characterized in that, Includes the following steps: S1. Equipment Installation The device is fixed by passing four bolts through the through holes on the four extension ears (404) and pressing them into the floor of the workshop. After fixing, the medium frequency induction furnace body (2) is placed into the bearing assembly (6) by the lifting equipment, supported by the ring plate (601), and limited by the two arc-shaped limiting plates (604). S2, Melting of metallic materials By putting metal materials into the medium frequency induction furnace body (2), the metal materials are melted by the medium frequency induction furnace body (2) to meet the requirements of casting; S3. Preparations before tilting the furnace By placing the casting mold of the workpiece in front of the automatic casting assembly (1), positioning it at the discharge position of the casting nozzle (3), and keeping personnel away; S4, Tilting Furnace By starting two motors (506) to drive two gears (507) to rotate, they mesh with two arc-shaped toothed plates (504) to drive the T-shaped slide (505) and the support base (508) with two support arms (509) to move together, thereby driving the bearing assembly (6) to rotate around the two rotating shafts (403) as the axis, completing the pouring of metal materials in the main body (2) of the medium frequency induction furnace and pouring them into the mold, thus completing the automatic casting of the workpiece; S5. Post-tilting treatment of the furnace After the tilting is completed, the two motors (506) are restarted to drive the two gears (507) to reverse, so that the two arc-shaped toothed plates (504) can mesh together to drive the T-shaped slide (505) and the support base (508) with two support arms (509) to move together, so as to complete the reset of the medium frequency induction furnace body (2) for the next stage of processing. If another mold needs to be cast, the reset distance can be shortened, thereby shortening the time required for recasting.

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