A round bar heating furnace

Abstract

This utility model discloses a round bar heating furnace, specifically relating to the field of bar heating furnace technology. It includes a furnace body with multiple electromagnetic coils in the middle. Support rollers and pressure rollers are respectively installed at the upper and lower ends of the electromagnetic coils. A lifting frame is installed at the top of the furnace body's inner cavity. Multiple stabilizing rods and connecting rods are fixedly connected to the top of the lifting frame. The top of the connecting rods extends to the top of the furnace body and is fixedly connected to a connecting frame. This utility model firstly uses fixed blocks and limiting grooves to directly limit the bar material during manual feeding. By activating an electric push rod, the lifting frame moves the pressure rollers downwards to directly squeeze and clamp the bar material located at the bottom of the support rollers, thus limiting the bar material's position. By activating a motor to sequentially control the rotation of the support rollers, stable conveying of the bar material can be achieved through their cooperation with the pressure rollers. During conveying, heating is provided by the electromagnetic coils, resulting in a heated conveying effect.

Description

Technical Field

[0001] This utility model relates to the field of bar heating furnace technology, and more specifically, to a round bar heating furnace. Background Technology

[0002] In the metallurgical industry, a heating furnace is a device (industrial furnace) that heats materials or workpieces (usually metals) to the rolling or forging temperature. Heating furnaces are widely used in many industries such as petroleum, chemical, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals. Round bar heating furnaces are industrial equipment used to heat metal round bars. They mainly use medium frequency induction heating technology, which generates eddy currents through electromagnetic induction to raise the temperature of the metal.

[0003] Traditional heating furnaces typically rely on manual placement of bars onto simple support rollers, with the weight of the bars acting as the support and conveyor. However, manual loading can lead to bar deviation, requiring repeated adjustments and resulting in low efficiency. Furthermore, the weight of the bars or airflow within the furnace can cause them to shift away from the heating zone, affecting the conveying effect. Additionally, the furnace cannot effectively clamp and limit the bars during transport, further compromising the conveying efficiency. Therefore, a new heating furnace for round bars is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a round bar heating furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a round bar heating furnace, comprising a furnace body, wherein multiple electromagnetic coils are arranged in the middle of the furnace body, and the round bar is directly heated by the electromagnetic induction principle of the electromagnetic coils. Support rollers and pressure rollers are respectively arranged at the upper and lower ends on both sides of the electromagnetic coils. The support rollers support the bar entering the middle of the electromagnetic coils, and the pressure rollers squeeze the bar, facilitating the rotation of the support rollers to transport and move the bar. A lifting top frame is arranged at the top of the inner cavity of the furnace body. Multiple stabilizing rods and connecting rods are fixedly connected to the top of the lifting top frame. The top of the connecting rods extends to the top of the furnace body and is fixedly connected to a connecting frame. The lifting of the connecting frame drives the connecting rods to lift the lifting top frame, and the stability of the lifting top frame's lifting and moving is improved by the stabilizing rods, thereby adjusting the height of the pressure rollers.

[0006] A support frame and a power supply box are fixedly connected to the top of the furnace body. An electric push rod is fixedly connected to the top of the support frame. A drive mechanism is provided on one side of the furnace body. Fixed blocks are fixedly connected to both ends of the furnace body. Limiting grooves are opened on the top of the fixed blocks. The electric push rod is activated to control the connecting frame to drive the lifting top frame to rise and fall in sequence. The drive mechanism can control the rotation of the support rollers, so that multiple support rollers can rotate simultaneously to transport the bars. The fixed blocks support the bars entering and exiting. The limiting grooves facilitate the limiting of the bars and improve the use effect.

[0007] Preferably, the furnace body has inlets and outlets on both sides corresponding to the limiting grooves. The inlets and outlets on both sides of the furnace body correspond to the middle of the electromagnetic coil. The rod is fed into the furnace body through the inlets and outlets and is located in the middle of the electromagnetic coil for convenient heating.

[0008] Preferably, the bottom of the inner cavity of the support frame is lower than the top wall of the support roller, and the two ends of the pressure roller are limited to the bottom of the lifting frame by a rotating shaft, so that the top wall of the support roller can fit with the bar material, which is convenient for conveying. The lifting and lowering of the pressure roller can be controlled by lifting and lowering the lifting frame.

[0009] Preferably, the power supply box is electrically connected to the electromagnetic coil, the electromagnetic coil is set at the bottom of the lifting frame, and the stabilizing rod is fixed around the top of the lifting frame. The power supply box facilitates the control of the electromagnetic coil to heat the central bar, and the stabilizing rod improves the stability of the lifting frame.

[0010] Preferably, the connecting frame is configured with a "+" shaped structure, and the moving end of the electric push rod is fixedly connected to the top wall of the connecting frame. Activating the electric push rod controls the connecting frame to drive the lifting top frame to rise and fall.

[0011] Preferably, the driving mechanism includes a transmission box fixed to one side of the furnace body, one end of the support roller is connected to a connecting rod, one end of the connecting rod extends to the middle of the transmission box and is fixedly fitted with a sprocket, and a chain is fitted around the outside of the sprocket.

[0012] Preferably, pressure rollers are provided on both the upper and lower sides of the chain in the middle of the transmission box. The pressure rollers are located between two connecting rods. One end of one of the connecting rods extends to the outside of the transmission box and is fixedly connected to a motor. Starting the motor controls the connecting rod to drive the sprocket to rotate. The pressure rollers guide the chain, and the chain cooperates to realize the simultaneous rotation of multiple connecting rods, thereby realizing the simultaneous rotation of multiple support rollers, which facilitates rotational conveying.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model firstly limits the bar material directly during manual feeding by setting a fixed block and limiting groove. By starting the electric push rod, the lifting top frame is controlled to move the pressure roller downward to directly squeeze and clamp the bar material located at the bottom of the support roller, which can realize the limiting of the bar material. By starting the motor to control the rotation of the support roller in sequence, the bar material can be stably conveyed through cooperation with the pressure roller. During the conveying process, heating is provided by electromagnetic coil to provide a heated conveying effect.

[0015] 2. This utility model also improves the stability of the lifting top frame driving the pressure roller to rise and fall by the cooperation of multiple stabilizing rods and connecting rods. At the same time, it can be adapted to heat and convey bars of different diameters. Furthermore, the cooperation of the chain, pressure roller, and sprocket can improve the synchronous transmission effect of multiple support rollers and enhance the driving effect.

[0016] In summary, through the interaction of the above-mentioned multiple functions, the bar stock can be directly limited during manual feeding and squeezed and clamped during the heating and conveying process, thereby improving the stability of the conveying. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of this utility model from another angle.

[0020] Figure 4 This is a schematic diagram of the split cross-sectional structure of the furnace body and the lifting top frame of this utility model.

[0021] The attached diagram is labeled as follows: 1. Furnace body; 2. Electromagnetic coil; 3. Support roller; 4. Lifting top frame; 5. Pressure roller; 6. Stabilizing rod; 7. Connecting rod; 8. Connecting frame; 9. Support frame; 10. Electric push rod; 11. Power supply box; 12. Sprocket; 13. Chain; 14. Pressure roller; 15. Transmission box; 16. Motor; 17. Connecting rod; 18. Fixing block; 19. Limiting groove. Detailed Implementation

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

[0023] As attached Figure 1-4The furnace shown includes a furnace body 1. Multiple electromagnetic coils 2 are arranged in the middle of the furnace body 1. The electromagnetic coils 2 directly heat the round bars through electromagnetic induction. Support rollers 3 and pressure rollers 5 are respectively arranged at the upper and lower ends of the electromagnetic coils 2. The support rollers 3 support the bars entering the middle of the electromagnetic coils 2, and the pressure rollers 5 squeeze the bars to facilitate the rotation of the support rollers 3 to transport and move the bars. A lifting frame 4 is arranged at the top of the inner cavity of the furnace body 1. Multiple stabilizing rods 6 and connecting rods 7 are fixedly connected to the top of the lifting frame 4. The top of the connecting rods 7 extends to the top of the furnace body 1 and is fixedly connected to a connecting frame 8. The lifting of the connecting frame 8 drives the connecting rods 7 to lift the lifting frame 4, and the stability of the lifting frame 4 is improved by the stabilizing rods 6, thereby adjusting the height of the pressure rollers 5.

[0024] A support frame 9 and a power supply box 11 are fixedly connected to the top of the furnace body 1. An electric push rod 10 is fixedly connected to the top of the support frame 9. A drive mechanism is provided on one side of the furnace body 1. Fixed blocks 18 are fixedly connected to both ends of the furnace body 1. A limit groove 19 is opened on the top of the fixed block 18. The electric push rod 10 is started to control the connecting frame 8 to drive the lifting top frame 4 to lift and adjust in sequence. It can also control the rotation of the support roller 3 through the drive mechanism, so that multiple support rollers 3 can rotate at the same time to transport the bar. The fixed block 18 supports the bar entering and exiting. The limit groove 19 facilitates the limiting of the bar and improves the use effect.

[0025] As attached Figure 1-4 As shown, inlet and outlet are provided on both sides of the furnace body 1 at positions corresponding to the limiting groove 19. The inlet and outlet on both sides of the furnace body 1 correspond to the middle of the electromagnetic coil 2. The bottom of the inner cavity of the support frame 9 is lower than the top wall of the support roller 3. The two ends of the pressure roller 5 are limited to the bottom of the lifting frame 4 by the rotating shaft. The power supply box 11 is electrically connected to the electromagnetic coil 2. The electromagnetic coil 2 is set at the bottom of the lifting frame 4. The stabilizing rod 6 is fixed around the top of the lifting frame 4. The connecting frame 8 is set as a "+" shaped structure. The moving end of the electric push rod 10 is fixedly connected to the top wall of the connecting frame 8. The bar material is input into the interior of the furnace body 1 through the inlet and outlet and is located in the middle of the electromagnetic coil 2 for convenient heating. The top wall of the support roller 3 can be made to fit with the bar material for convenient conveying. The lifting and lowering of the lifting frame 4 can control the lifting and lowering of the pressure roller 5. The power supply box 11 can conveniently control the electromagnetic coil 2 to heat the bar material in the middle. The stabilizing rod 6 improves the stability of the lifting and lowering of the lifting frame 4. The electric push rod 10 is started to control the connecting frame 8 to drive the lifting frame 4 to lift and lower.

[0026] As attached Figure 3As shown, the drive mechanism includes a transmission box 15 fixed to one side of the furnace body 1. One end of the support roller 3 is connected to a connecting rod 17. One end of the connecting rod 17 extends to the middle of the transmission box 15 and is fixedly fitted with a sprocket 12. A chain 13 is fitted around the outside of the sprocket 12. Pressure rollers 14 are provided on both the upper and lower sides of the chain 13 in the middle of the transmission box 15. The pressure rollers 14 are located between two connecting rods 17. One end of one connecting rod 17 extends to the outside of the transmission box 15 and is fixedly connected to a motor 16. When the motor 16 is started, it controls the connecting rod 17 to drive the sprocket 12 to rotate. Through the guidance of the pressure roller 14, the chain 13 is driven by the sprocket 12 to rotate synchronously. Thus, multiple connecting rods 17 can rotate simultaneously through the sprocket 12, thereby enabling multiple support rollers 3 to rotate simultaneously, which facilitates rotational conveying.

[0027] The working principle of this utility model is as follows: When in use, the round bar is inserted into the furnace body 1 through the middle of the limiting groove 19, and the bar is positioned in the middle of the electromagnetic coil 2. The electromagnetic coil 2 heats the middle bar through the power supply box 11, and the bar is supported by the support roller 3.

[0028] Then start the electric push rod 10 to control the lifting top frame 4 to move the pressure roller 5 downwards until the pressure roller 5 and the support roller 3 cooperate to clamp the bar;

[0029] Then, the motor 16 is started to control multiple support rollers 3 to rotate simultaneously and convey the bar to the other end, so that the bar passes through the middle of multiple electromagnetic coils 2 in the middle of the furnace body 1 and is electromagnetically heated until the bar is output through the top limiting groove 19 of the fixed block 18 on the other side, realizing the automatic heating and conveying of the bar.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A round bar heating furnace, comprising a furnace body (1), characterized in that: The furnace body (1) is provided with multiple electromagnetic coils (2) in the middle. Support rollers (3) and pressure rollers (5) are provided at the upper and lower ends of the electromagnetic coils (2) respectively. The furnace body (1) is provided with a lifting top frame (4) at the top of the inner cavity. Multiple stabilizing rods (6) and connecting rods (7) are fixedly connected to the top of the lifting top frame (4). The top of the connecting rods (7) extends to the top of the furnace body (1) and is fixedly connected to a connecting frame (8). The top of the furnace body (1) is fixedly connected to a support frame (9) and a power supply box (11). The top of the support frame (9) is fixedly connected to an electric push rod (10). A drive mechanism is provided on one side of the furnace body (1). Fixed blocks (18) are fixedly connected to both ends of the furnace body (1). A limit groove (19) is opened on the top of the fixed block (18).

2. The round bar heating furnace according to claim 1, characterized in that: The furnace body (1) has inlet and outlet openings on both sides corresponding to the limiting groove (19), and the inlet and outlet openings on both sides of the furnace body (1) correspond to the middle part of the electromagnetic coil (2).

3. The round bar heating furnace according to claim 1, characterized in that: The bottom of the inner cavity of the support frame (9) is lower than the top wall of the support roller (3), and the two ends of the pressure roller (5) are limited to the bottom of the lifting frame (4) by the rotating shaft.

4. A round bar heating furnace according to claim 1, characterized in that: The power supply box (11) is electrically connected to the electromagnetic coil (2), the electromagnetic coil (2) is set at the bottom of the lifting frame (4), and the stabilizer (6) is fixed around the top of the lifting frame (4).

5. A round bar heating furnace according to claim 1, characterized in that: The connecting frame (8) is configured with a "+" shaped structure, and the moving end of the electric push rod (10) is fixedly connected to the top wall of the connecting frame (8).

6. A round bar heating furnace according to claim 1, characterized in that: The drive mechanism includes a transmission box (15) fixed on one side of the furnace body (1), a connecting rod (17) connected to one end of the support roller (3), one end of the connecting rod (17) extending to the middle of the transmission box (15) and fixedly fitted with a sprocket (12), and a chain (13) fitted on the outside of the sprocket (12).

7. A round bar heating furnace according to claim 6, characterized in that: The transmission box (15) is provided with pressure rollers (14) on both the upper and lower sides of the chain (13) in the middle. The pressure rollers (14) are located between two connecting rods (17), and one end of one of the connecting rods (17) extends to the outside of the transmission box (15) and is fixedly connected to a motor (16).

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