High-frequency furnace for steel casting machining

Abstract

The utility model provides a high-frequency furnace for processing steel castings, which comprises a high-frequency power supply and a coil connected with the high-frequency power supply, the high-frequency power supply is arranged in a shell, the shell is mounted at the top of one end of a support plate, the coil is positioned above the support plate, the high-frequency furnace further comprises a sealing cover, and a placing port coaxial with the coil is arranged at the top of the sealing cover. One side and the bottom of the sealing cover are open, the sealing cover covers the coil, the bottom of the sealing cover is detachably connected with the supporting plate, a ventilation opening is formed in one side of the sealing cover, an exhaust device is arranged on the other side of the sealing cover, and the coil is located between the exhaust device and the ventilation opening. During use, the coil can continuously dissipate heat through blowing of the fan, so that the temperature of the coil is prevented from being too high, and the high temperature of the coil is prevented from influencing the smelting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to high frequency furnace technical field, specifically is a kind of high frequency furnace for steel casting processing. BACKGROUND

[0002] The heating principle of high frequency furnace is based on electromagnetic induction phenomenon. When high-frequency power supply generates high-frequency electromagnetic field, the electromagnetic field can pass through the heating material, and eddy current is generated inside the material. The size of the eddy current depends on the electrical conductivity of the material and the strength of the magnetic field. When the eddy current passes through the heating material, it will produce damping effect, converting electrical energy into heat energy, thereby heating the material.

[0003] When the high frequency furnace is heating, the metal needs to be placed in the crucible. Although the crucible can contain the molten metal, the crucible itself will emit a large amount of heat outward, and the heat will be directly transferred to the coil. Therefore, the high frequency furnace coil needs to be cooled during operation, because a large amount of heat is generated during the heating process. If the heat is not dissipated in time, the coil will overheat, which may cause damage to the equipment or performance degradation. Therefore, we propose a kind of high frequency furnace for steel casting processing. SUMMARY

[0004] The utility model provides a kind of high frequency furnace for steel casting processing, with the advantage that coil continues to cool, solve the problem raised in the above background technology.

[0005] The technical scheme of the utility model is as follows: a kind of high frequency furnace for steel casting processing, including high frequency power supply and the coil connected with high frequency power supply, high frequency power supply is arranged in shell, shell is installed in the top of one end of support plate, and coil is located above support plate;

[0006] The utility model further includes a sealing cover, the top of the sealing cover is provided with a placement opening coaxially arranged with the coil, one side and the bottom of the sealing cover are both open, the sealing cover covers the coil, and the bottom of the sealing cover is detachably connected with the support plate. One side of the sealing cover is provided with a ventilation opening, and the other side of the sealing cover is provided with an exhaust device. The coil is located between the exhaust device and the ventilation opening.

[0007] Preferably, the two ends of the coil are mounted on the mounting plate, and the mounting plate is detachably arranged on the side surface of the shell.

[0008] Preferably, a support cylinder is provided below the placement opening, and the top of the support cylinder is mounted in the placement opening, and the support cylinder is coaxially arranged in the coil.

[0009] Preferably, a heat insulation sleeve is provided on the support cylinder in the sealing cover, and the coil is located outside the heat insulation sleeve.

[0010] Preferably, the exhaust device includes a cover body, the cover body is arranged on the side surface of the sealing cover, a fan is arranged in the cover body, the fan is mounted on a motor, and the motor is fixed in the cover body by a support frame.

[0011] Preferably, a first temperature sensor is arranged on the side surface of the supporting cylinder, the detecting end of the first temperature sensor extends into the supporting cylinder, the first temperature sensor is connected with the controller, the controller is connected with the high-frequency power supply, and the controller is also connected with the operation screen and the operation button, and the operation screen and the operation button are arranged on the surface of the shell.

[0012] Preferably, a second temperature sensor is arranged on the surface of the heat insulation sleeve and contacts the coil, the second temperature sensor is connected with the controller, and an alarm is arranged on the surface of the shell and connected with the controller.

[0013] Compared with the prior art, in use, the coil can be continuously cooled by the fan blowing, so that the temperature of the coil is prevented from being too high, and the high temperature of the coil is prevented from affecting the smelting process. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a structural schematic view of the front of the present application.

[0016] Figure 2 It is a structural schematic view of the back of the present application.

[0017] Figure 3 It is a structural schematic view of part of the present application.

[0018] Figure 4 It is a structural schematic view of the sealing cover of the present application.

[0019] Figure 5 It is a structural schematic view of the bottom of the sealing cover of the present application.

[0020] Figure 6 It is a front view of the present application.

[0021] In the figure: 1, sealing cover; 2, annular table; 3, supporting cylinder; 4, smelting dry pot; 5, shell; 6, operation screen; 7, mounting plate; 8, supporting plate; 9, ventilation opening; 10, coil; 11, cover body; 12, fan; 13, controller; 14, high-frequency power supply; 15, heat insulation sleeve; 16, placing opening; 17, supporting frame body; 18, first temperature sensor; 19, second temperature sensor. DETAILED DESCRIPTION

[0022] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1 to 6 This utility model provides a technical solution: a high-frequency furnace for processing steel castings, including a high-frequency power supply 14, a controller 13, and a coil 10. The controller 13 is specifically a PCB control motherboard. Both the high-frequency power supply 14 and the controller 13 are housed within a housing 5. The coil 10 is connected to the high-frequency power supply 14, and the controller 13 is connected to an operation panel 6 and operation buttons. Figure 1 As shown, the operation screen and operation buttons are set on the surface of the housing 5. The operation buttons include buttons for adjusting the heating temperature of the coil 10, start / stop buttons, etc.

[0024] The outer casing 5 is mounted on top of the support plate 8, such as Figure 1 As shown, specifically, the outer casing 5 is installed on the top of one end of the support plate 8, as... Figure 3 As shown, coil 10 is located above support plate 8, and coil 10 is housed within sealing cover 1, as... Figure 4 As shown, one side and the bottom of the sealing cover 1 are open. During installation, the sealing cover 1 is placed over the coil 10. At this time, the bottom of the sealing cover 1 is detachably connected to the support plate 8. Specifically, the bottom edge of the sealing cover 1 is fastened to the support plate 8 with bolts.

[0025] A placement opening 16 is provided on the top of the sealing cover 1, which is coaxial with the coil 10. The placement opening 16 is used to place the smelting pot 4. When the smelting pot 4 is placed in the placement opening 16, the body of the smelting pot 4 is placed inside the coil 10, and the coil 10 can heat the metal inside the smelting pot 4.

[0026] Furthermore, such as Figure 4 and Figure 6 As shown, a support cylinder 3 is provided below the placement port 16. The top of the support cylinder 3 is installed inside the placement port 16, and the support cylinder 3 is coaxially placed inside the coil 10. A heat insulation sleeve 15 is provided on the support cylinder 3 located inside the sealing cover 1, and the coil 10 is located outside the heat insulation sleeve 15.

[0027] Because when the coil 10 heats the metal, the metal melts in the smelting pot 4, at this time the temperature of the smelting pot 4 is very high, the high temperature is first blocked by the support cylinder 3, and then the heat on the support cylinder 3 can continue to be blocked by the heat insulation sleeve 15, finally the heat transferred to the coil 10 is greatly reduced, avoiding the interference of the high temperature on the coil 10. The heat insulation sleeve 15 is a heat insulation layer such as aerogel sleeve, ceramic heat insulation sleeve, etc., and the support cylinder 3 not only needs to be heat-insulated, but also supports the smelting pot 4, so the support cylinder 3 needs to have a certain strength, and the support cylinder 3 is preferably made of ceramic material, that is, the support cylinder 3 is a ceramic support cylinder.

[0028] As shown in Figure 6 , the side surface of the support cylinder 3 is provided with a first temperature sensor 18, the detection end of the first temperature sensor 18 extends into the support cylinder 3, that is, the detection end of the first temperature sensor 18 is flush with the inner wall of the support cylinder 3, when the smelting pot 4 is placed inside the support cylinder 3, the first temperature sensor 18 can directly detect the temperature of the smelting pot 4, the first temperature sensor 18 is connected with the controller 13, the first temperature sensor 18 monitors and feeds back the temperature information to the controller in real time, the controller 13 is connected with the high-frequency power supply 14, the controller automatically controls the on-off of the high-frequency power supply 14, so that the coil 10 is powered on or powered off, so that the smelting pot 4 maintains a constant temperature.

[0029] Based on the above embodiment, the most important thing of the present application is to cool the coil 10, so that the coil 10 can maintain the best working state, avoiding the influence of high temperature of the coil 10 on the smelting work. Specifically, a ventilation opening 9 is arranged on one side of the sealing cover 1, and an exhaust device is arranged on the other side of the sealing cover 1, as shown in Figure 2 , the exhaust device includes a cover body 11, the cover body 11 is arranged on the side surface of the sealing cover 1, and a fan 12 is arranged in the cover body 11, the fan 12 is installed on a motor, the motor is fixed in the cover body 11 through a support frame 17, and the support frame 17 is a cross frame;

[0030] Among them, the coil 10 is located between the exhaust device and the ventilation opening 9, when the motor rotates forward or reversely (that is, the fan 12 blows air outward or blows air into the cover body 11), the external air will be directly blown on the surface of the coil 10, so that the heat on the surface of the coil 10 is quickly blown away, and the temperature of the coil 10 is reduced, and when blowing, the airflow will not affect the normal smelting of the smelting pot.

[0031] In order to further monitor the temperature of the coil 10 and prevent the temperature of the coil 10 from being too high, a second temperature sensor 19 in contact with the coil 10 is arranged on the surface of the heat insulation sleeve 15, the second temperature sensor 19 is connected with the controller, when the second temperature sensor 19 senses that the temperature of the coil 10 exceeds or approaches the preset value, the controller controls the alarm to alarm, and the alarm is arranged on the shell 5.

[0032] Further, as shown in Figure 4As shown, the two ends of the coil 10 are mounted on the mounting plate 7, which is detachably arranged on the side of the shell 5, specifically, the edge of the mounting plate 7 is fastened with the shell 5 by bolts, so that the coil 10 can be conveniently disassembled, and the coil 10 can also be conveniently replaced or maintained.

[0033] Based on the above embodiment, further optimization can be made, and the wire harness connected with the second temperature sensor 19 passes through the mounting plate 7 into the shell 5.

[0034] Based on the above embodiment, further optimization can be made, and the shell 5 is provided with an exhaust fan and a heat dissipation port on the side, so that the controller and the high-frequency power supply 14 in the shell 5 can be cooled.

[0035] Based on the above embodiment, further optimization can be made, and the ventilation port 9 and the port of the cover body 11 are each provided with a protective net.

[0036] Based on the above embodiment, further optimization can be made, and the top edge of the placing port 16 is provided with an annular table 2, which is used to prevent the smelting dry pot 4 from directly contacting the edge of the placing port 16.

[0037] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high frequency furnace for machining a steel casting, comprising a high frequency power source (14) and a coil (10) connected to the high frequency power source (14), the high frequency power source (14) being disposed in a housing (5) mounted on the top of one end of a support plate (8) and the coil (10) being located above the support plate (8), characterized in that, The sealing cover (1) is provided with a placing opening (16) coaxially arranged with the coil (10) on the top thereof; The sealing cover (1) is provided with an opening on one side and on the bottom thereof, the sealing cover (1) covers the coil (10), and the bottom of the sealing cover (1) is detachably connected with the supporting plate (8); The sealing cover (1) is provided with a ventilation opening (9) on one side, and is provided with an exhaust device on the other side, and the coil (10) is located between the exhaust device and the ventilation opening (9).

2. The high-frequency furnace for processing a steel casting as recited in claim 1, wherein The two ends of the coil (10) are mounted on the mounting plate (7), and the mounting plate (7) is detachably arranged on the side of the shell (5).

3. The high-frequency furnace for processing a steel casting as recited in claim 1, wherein The supporting cylinder (3) is provided below the placing opening (16), the top of the supporting cylinder (3) is mounted in the placing opening (16), and the supporting cylinder (3) is coaxially arranged in the coil (10).

4. The high-frequency furnace for processing a steel casting as recited in claim 3, characterized by The supporting cylinder (3) located in the sealing cover (1) is provided with a heat insulation sleeve (15), and the coil (10) is located outside the heat insulation sleeve (15).

5. The high-frequency furnace for processing a steel casting as recited in claim 4, wherein The exhaust device comprises a cover body (11) arranged on the side of the sealing cover (1), the cover body (11) is provided with a fan (12) therein, the fan (12) is mounted on a motor, and the motor is fixed in the cover body (11) through a supporting frame body (17).

6. The high-frequency furnace for processing a steel casting as recited in claim 5, wherein The side surface of the supporting cylinder (3) is provided with a first temperature sensor (18), and the detection end of the first temperature sensor (18) extends into the supporting cylinder (3); The first temperature sensor (18) is connected with a controller (13), the controller (13) is connected with a high-frequency power supply (14), and the controller (13) is also connected with an operation screen (6) and an operation button, and the operation screen (6) and the operation button are arranged on the surface of the shell (5).

7. The high-frequency furnace for processing a steel casting as recited in claim 6, wherein The surface of the heat insulation sleeve (15) is provided with a second temperature sensor (19) in contact with the coil (10), the second temperature sensor (19) is connected with the controller, and the surface of the shell (5) is provided with an alarm, and the alarm is connected with the controller.

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