Induction heating device for heating steel bar

Abstract

The utility model relates to an induction heating device for heating a steel bar, the induction heating device comprises a rack and an induction heating assembly, the induction heating assembly comprises a heating coil and a power supply box, the rack is arranged on the power supply box, the heating coil is arranged on the rack, the power supply box is used for heating the heating coil, and the induction heating device comprises a detection assembly, the detection assembly comprises a temperature detector and an indicator light, the temperature detector is arranged on the power supply box and faces a steel bar in the heating coil, and the indicator light is arranged on the power supply box and used for being electrically connected with the temperature detector. The device has the effect that the steel bar is heated to the set temperature, so that the quality of the subsequent steel bar in the stamping process is improved.

Description

Technical Field

[0001] This application relates to the field of induction heating devices, and more particularly to an induction heating device for heating steel bars. Background Technology

[0002] In the production of hexagonal bolts, steel bars need to be heated to 1200℃-1300℃ and then sent to a punch press to be stamped into hexagonal heads.

[0003] Currently, induction heating is commonly used to heat steel bars. Workers determine whether the steel bars have been heated to the appropriate temperature by observing the color of the steel bar surface. However, due to factors such as the intensity of light and the weather, the range of visual observation has a large error and is only an approximate temperature. The accuracy of steel bar temperature judgment is poor, resulting in low quality of the steel bars during subsequent stamping. Utility Model Content

[0004] In order to heat the steel bar to a set temperature and thereby improve the quality of the steel bar in the subsequent stamping process, this application provides an induction heating device for heating steel bars.

[0005] This application provides an induction heating device for heating steel bars, which adopts the following technical solution:

[0006] An induction heating device for heating steel bars includes a frame and an induction heating assembly. The induction heating assembly includes a heating coil and a power supply box. The frame is mounted on the power supply box, and the heating coil is mounted on the frame. The power supply box is used for heating the heating coil itself and includes a detection assembly. The detection assembly includes a temperature detector and an indicator light. The temperature detector is mounted on the power supply box and faces the steel bar inside the heating coil. The indicator light is mounted on the power supply box and is electrically connected to the temperature detector.

[0007] By adopting the above technical solution, the operator places the steel bar inside the heating coil, and the power supply box supplies power to the heating coil, causing the heating coil to heat the steel bar. At this time, the temperature detector monitors the steel bar in real time. When the temperature of the steel bar reaches the set temperature, the indicator light illuminates, and the operator then removes the steel bar from the heating coil. The equipment has a simple structure, is easy for operators to operate, and the temperature detector is not affected by ambient light. Operators also do not need to estimate the temperature based on the surface temperature of the steel bar, which improves the accuracy of steel bar heating and thus improves the quality of subsequent steel bar stamping processes.

[0008] Optionally, the frame is provided with a clamping assembly for clamping the steel bar. The clamping assembly includes a first clamping plate, a second clamping plate, and a torsion spring. The first clamping plate is disposed on the frame, the second clamping plate is rotatably connected to the first clamping plate, and the torsion spring is used to keep the steel bar clamped between the second clamping plate and the first clamping plate.

[0009] By adopting the above technical solution, the steel rod reaches a high temperature during the heating process, making it impossible to hold by hand. If placed directly inside the heating coil, the steel rod is prone to sticking to the heating coil. The clamping assembly keeps the steel rod inside the heating coil and creates a gap between the steel rod and the heating coil. The operator places the steel rod between the first clamping plate and the second clamping plate. Through the action of the torsion spring, the first clamping plate and the second clamping plate remain in contact with the steel rod, and the position of the steel rod remains unchanged during the heating process. The clamping assembly has a simple structure and is easy to operate.

[0010] Optionally, the first clamping plate has a first groove for placing the steel bar.

[0011] By adopting the above technical solution, the first groove is used to limit the steel bar, reduce the slippage of the steel bar during the clamping process between the first clamping plate and the second clamping plate, and improve the rationality of the clamping assembly.

[0012] Optionally, the first groove is provided with anti-slip texture.

[0013] By adopting the above technical solution, the anti-slip texture increases the friction between the steel bar and the first clamping plate, further reducing the slippage of the steel bar during the clamping process between the first clamping plate and the second clamping plate.

[0014] Optionally, the first clamping plate is slidably connected to the frame in a direction close to or away from the heating coil.

[0015] By adopting the above technical solution, the staff first places the steel rod in the first groove of the first clamping plate, and the first clamping plate and the second clamping plate clamp the steel rod by the torsion spring. After the clamped steel rod passes through, the first clamping plate is moved towards the heating coil so that the steel rod is located inside the heating coil. When the staff takes out the steel rod, the steel rod is outside the heating coil, which improves the convenience of taking out the steel rod.

[0016] Optionally, the clamping assembly further includes a limiting member, which includes a screw and a limiting plate. The length direction of the screw is parallel to the sliding direction of the first clamping plate. The screw is rotatably connected to the frame. The limiting plate is slidably connected to the frame along the length direction of the screw. The limiting plate is threadedly connected to the screw. The limiting plate is used to abut against the side wall of the first clamping plate facing the heating coil.

[0017] By adopting the above technical solution, since the steel rods have different sizes, the lengths of the steel rods entering the heating coil are different. The operator can rotate the screw to change the distance between the limiting plate and the heating coil according to the required length of the steel rod entering the heating coil. The limiting plate restricts the position of the first clamping plate and the heating coil, thereby controlling the length of the steel rod entering the heating coil. The limiting component is used to precisely control the length of the steel rod being heated.

[0018] Optionally, the first clamping plate is provided with an abutment plate that abuts against the end of the steel rod away from the heating coil.

[0019] By adopting the above technical solution, the abutment plate is used to abut the end of the steel rod away from the heating coil, so that the position of the steel rod relative to the first clamping plate is consistent, and the heating length of the steel rod can be better controlled.

[0020] Optionally, both the first clamping plate and the second clamping plate are provided with extension rods, and the extension rods are provided with heat insulation layers.

[0021] By adopting the above technical solution, the heat from the steel rod is transferred to the first clamping plate and the second clamping plate as the heating coil heats the steel rod. The extension rod and the heat insulation layer can reduce the risk of burns to workers.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The detection component is used to monitor the temperature of the steel bar in real time. When the temperature reaches the required level, the indicator light will illuminate, and the operator can then remove the steel bar from the heating coil, thus improving the heating accuracy of the steel bar.

[0024] 2. The clamping assembly is used to clamp the steel bar, reducing the possibility of the steel bar sticking to the heating coil during the heating process;

[0025] 3. The limiting component is used to adjust the length of the steel rod entering the heating coil, so as to achieve precise control of the heating length of the steel rod. Attached Figure Description

[0026] Figure 1 It is an induction heating device used for heating steel bars.

[0027] Figure 2 yes Figure 1 A schematic diagram of the clamping component.

[0028] Figure 3 yes Figure 2 A schematic diagram showing the cooperation relationship between the first clamping plate and the second clamping plate.

[0029] Figure 4 yes Figure 2 A schematic diagram of the middle limiting component.

[0030] Reference numerals: 1. Frame; 2. Induction heating assembly; 21. Heating coil; 22. Power supply box; 3. Detection assembly; 31. Temperature detector; 32. Indicator light; 33. Bracket; 4. Clamping assembly; 41. First clamping plate; 411. First groove; 42. Second clamping plate; 421. Second groove; 43. Torsion spring; 44. Limiting component; 441. Screw; 442. Limiting plate; 443. Turntable; 45. Extension rod; 46. Heat insulation layer; 47. Abutment plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.

[0032] This application discloses an induction heating device for heating steel bars. (See also...) Figure 1 and Figure 2 An induction heating device for heating steel bars includes a frame 1, an induction heating component 2, a detection component 3, and a clamping component 4. The induction heating component 2 includes a heating coil 21 and a power supply box 22. The power supply box 22 is fixedly installed on the ground, and the frame 1 is fixedly installed on the power supply box 22. The two ends of the heating coil 21 are connected to the power supply box 22, and the heating coil 21 is placed on the frame 1.

[0033] Reference Figure 1 The detection component 3 includes a temperature detector 31, an indicator light 32, and a bracket 33. The bracket 33 is fixedly mounted on the side wall of the power supply box 22. The temperature detector 31 is located directly above the heating coil 21 and is fixedly mounted on the bracket 33. The indicator light 32 is fixedly mounted on the upper surface of the power supply box 22 and is electrically connected to the temperature detector 31.

[0034] Reference Figure 1 and Figure 3The clamping assembly 4 includes a first clamping plate 41, a second clamping plate 42, a torsion spring 43, and a limiting member 44. The first clamping plate 41 is horizontally slidably connected to the frame 1 along the direction of approaching or moving away from the heating coil 21. A first groove 411 is formed on the upper end surface of the first clamping plate 41, and the first groove 411 extends along the sliding direction of the first clamping plate 41. The second clamping plate 42 is rotatably connected to the first clamping plate 41 along the sliding direction of the first clamping plate 41. A second groove 421 is formed on the lower end surface of the second clamping plate 42, and the second groove 421 extends along the sliding direction of the first clamping plate 41. A groove 411 and a second groove 421 form a space for accommodating the steel rod. Both the first groove 411 and the second groove 421 are provided with anti-slip textures. The rotation axis of the torsion spring 43 and the second clamping plate 42 are coaxially arranged. One end of the torsion spring 43 is fixedly set on the first clamping plate 41, and the other end of the torsion spring 43 is fixedly set on the second clamping plate 42. An extension rod 45 is provided on the side wall of the first clamping plate 41 and the second clamping plate 42 away from the heating coil 21. The length direction of the extension rod 45 is parallel to the sliding direction of the first clamping plate 41. A heat insulation layer 46 is fixedly set on the outer side wall of the extension rod 45.

[0035] Reference Figure 2 and Figure 4 The limiting component 44 includes a screw 441, a limiting plate 442, and a turntable 443. The length direction of the screw 441 is parallel to the sliding direction of the first clamping plate 41. The screw 441 is rotatably connected to the frame 1. The limiting plate 442 is slidably connected to the frame 1 along the length direction of the screw 441. The limiting plate 442 is threadedly connected to the screw 441. The limiting plate 442 is located between the heating coil 21 and the first clamping plate 41. The limiting plate 442 is used to abut against the first clamping plate 41. The turntable 443 is coaxially arranged with the screw 441. The turntable 443 is fixedly arranged on one end of the screw 441. An abutment plate 47 is fixedly arranged on the side wall of the first clamping plate 41 away from the heating coil 21. The abutment plate 47 is used to abut against the end of the steel rod away from the heating coil 21.

[0036] The implementation principle of an induction heating device for heating steel bars according to an embodiment of this application is as follows: The operator supplies power to the heating coil 21 through the power supply box 22, and the heating coil 21 performs magnetic induction heating. Then, the operator places the steel bar in the first groove 411 and the second groove 421, so that the steel bar abuts against the abutment plate 47. The second clamping plate 42 is brought close to the first clamping plate 41 by the torsion spring 43 to clamp the steel bar. The turntable 443 drives the screw 441 to rotate. The position of the limiting plate 442 is adjusted to control the movement distance of the first clamping plate 41. Then, the extension plate is held to move the first clamping plate 41 and the second clamping plate 42 toward the heating coil 21, so that the part of the steel bar to be heated is located in the heating coil 21. The temperature of the steel bar is detected by the temperature detector 31. When the temperature reaches the set range, the indicator light 32 lights up. The first clamping plate 41 and the second clamping plate 42 are moved away from the heating coil 21 and the steel bar is taken out.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An induction heating device for heating steel bars, comprising a frame (1) and an induction heating assembly (2), wherein the induction heating assembly (2) includes a heating coil (21) and a power supply box (22), the frame (1) is mounted on the power supply box (22), the heating coil (21) is mounted on the frame (1), and the power supply box (22) is used for heating the heating coil (21) itself, characterized in that: The device includes a detection component (3), which includes a temperature detector (31) and an indicator light (32). The temperature detector (31) is mounted on the power supply box (22) and faces the steel rod inside the heating coil (21). The indicator light (32) is mounted on the power supply box (22) and is used to electrically connect to the temperature detector (31).

2. The induction heating device for heating steel bars according to claim 1, characterized in that: The frame (1) is provided with a clamping assembly (4) for clamping steel bars. The clamping assembly (4) includes a first clamping plate (41), a second clamping plate (42), and a torsion spring (43). The first clamping plate (41) is disposed on the frame (1), the second clamping plate (42) is rotatably connected to the first clamping plate (41), and the torsion spring (43) is used to keep the second clamping plate (42) and the first clamping plate (41) clamping the steel bars.

3. The induction heating device for heating steel bars according to claim 2, characterized in that: The first clamping plate (41) has a first groove (411) for placing the steel bar.

4. The induction heating device for heating steel bars according to claim 3, characterized in that: The first groove (411) is provided with anti-slip texture.

5. An induction heating device for heating steel bars according to claim 2, characterized in that: The first clamping plate (41) is slidably connected to the frame (1) in a direction close to or away from the heating coil (21).

6. An induction heating device for heating steel bars according to claim 5, characterized in that: The clamping assembly (4) further includes a limiting member (44), which includes a screw (441) and a limiting plate (442). The length direction of the screw (441) is parallel to the sliding direction of the first clamping plate (41). The screw (441) is rotatably connected to the frame (1). The limiting plate (442) is slidably connected to the frame (1) along the length direction of the screw (441). The limiting plate (442) is threadedly connected to the screw (441). The limiting plate (442) is used to abut against the side wall of the first clamping plate (41) facing the heating coil (21).

7. An induction heating device for heating steel bars according to claim 6, characterized in that: The first clamping plate (41) is provided with an abutting plate (47) that abuts against the end of the steel rod away from the heating coil (21).

8. An induction heating device for heating steel bars according to claim 2, characterized in that: Both the first clamping plate (41) and the second clamping plate (42) are provided with extension rods (45), and the extension rods (45) are provided with heat insulation layers (46).

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