A hot rolling mill with automatic bar flipping function

Abstract

This application relates to the field of hot rolling mills and discloses an automatic bar-turning hot rolling mill, including a heating box and an adjusting frame. Several motors are fixedly installed at one end of the heating box, and the output ends of the motors are fixedly connected to rotating shafts. A transmission steel belt is driven to the surface of the rotating shafts. Several rotating rods are rotatably installed on the inner wall of the adjusting frame, and an adjusting belt is driven to the surface of the rotating rods. A connecting gear meshes with one end of each rotating rod, and a connecting rod is fixedly installed at one end of the connecting gear. This application improves the heating efficiency of the processed materials by installing the adjusting frame inside the heating box, installing an adjusting belt on the inner wall of the adjusting frame via the rotating rods, and installing a connecting rod at one end of each rotating rod via the connecting gear. A synchronous belt is driven to the surface of the connecting rod. This facilitates the placement of multiple processed materials using a "V"-shaped transmission steel belt, and the adjusting belt drives the processed materials to turn over.

Description

Technical Field

[0001] This application relates to the field of hot rolling mills, and more particularly to a hot rolling mill for automatically flipping bars. Background Technology

[0002] Hot rolling is the opposite of cold rolling. Cold rolling is rolling performed below the recrystallization temperature, while hot rolling is rolling performed above the recrystallization temperature. A hot rolling mill mainly consists of work rolls, support rolls, transmission devices, adjustment devices, and measurement and control systems. During operation, the metal billet is fed between the rolls. Through the rotation and pressure of the rolls, the billet undergoes plastic deformation, thereby achieving the required thickness and width. A heating box is often installed inside the hot rolling mill to heat the processed material. The hot rolling mill heating box is a device used to preheat and heat the metal billet during the hot rolling production process. Its main function is to heat the metal billet to the required rolling temperature through induction heating, ensuring that the billet reaches the ideal temperature state during the rolling process. In conventional heating boxes, the motor is mounted on the surface of the heating box. The output end of the motor is connected to a transmission steel belt via a rotating shaft. The processed material is moved by the transmission steel belt and a high-frequency current is generated through the heating box via a medium-frequency power supply system. This generates a magnetic field in the inductor, which in turn generates eddy currents in the metal processed material, thereby heating the processed material.

[0003] Regarding the aforementioned technologies, the inventors believe that conventional hot-rolled materials are often heated individually, and the heating effect is poor at the end of the material that contacts the conveyor belt. The material needs to be turned over for uniform heating, which takes a certain amount of time for the heating box to heat the material, thus affecting the processing efficiency of the hot rolling mill.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the problem of poor heating efficiency of conventional hot rolling heating boxes for processed materials, this application provides a hot rolling mill with automatic bar flipping.

[0006] The hot rolling mill for automatically flipping bars provided in this application adopts the following technical solution:

[0007] An automatic bar-turning hot rolling mill includes a heating box and an adjusting frame. Several motors are fixedly mounted at one end of the heating box, and the output ends of the motors are fixedly connected to rotating shafts. A transmission steel belt is driven through the surfaces of the rotating shafts. Several rotating rods are rotatably mounted on the inner wall of the adjusting frame, and an adjusting belt is driven through the surfaces of the rotating rods. A connecting gear meshes with one end of each rotating rod, and a connecting rod is fixedly mounted at one end of the connecting gear. A synchronous belt is driven through the surface of the connecting rod. The rotating shafts are rotatably mounted to the inner wall of the heating box, and the adjusting frame is slidably connected to the inner wall of the heating box. The adjusting belt has a triangular cross-section. The center of the connecting gear and the center of the connecting rod are on the same straight line. The transmission steel belt has a V-shaped cross-section.

[0008] Preferably, the inner wall of the synchronous belt is equipped with a connecting disc and an adjusting disc, the inner wall of the connecting disc is fixedly connected to one end of the rotating shaft, and the center of the connecting disc and the center of the rotating shaft are on the same straight line.

[0009] Preferably, two slide rails are slidably installed on the inner wall of the adjusting frame. The two slide rails are symmetrically distributed about the adjusting frame, and the surface of the slide rails is fixedly connected to the inner wall of the heating box. The size and specifications of the slide rail surface are adapted to the size and specifications of the inner wall of the adjusting frame.

[0010] Preferably, a threaded rod is rotatably mounted on the top of the adjusting frame, the surface of the threaded rod is threadedly connected to the inner wall of the heating box, and the center of the threaded rod is on the same straight line as the center of the adjusting frame.

[0011] Preferably, a slider is rotatably mounted on one end of the adjusting disc, the slider has a "T" shaped cross-section, and the surface of the slider is slidably connected to the inner wall of the heating box.

[0012] Preferably, a spring is rotatably mounted on one end of the adjusting disc, and one end of the spring is fixedly connected to the inner wall of the heating chamber.

[0013] Preferably, a limiting roller is rotatably installed on the inner wall of the heating box, and the surface of the limiting roller is provided with a plurality of auxiliary grooves, which are arranged in a circular array with the center of the limiting roller as the axis.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. By installing an adjusting frame inside the heating chamber, an adjusting belt is mounted on the inner wall of the adjusting frame via a rotating rod. A connecting rod is mounted on one end of the rotating rod via a connecting gear. A synchronous belt is driven to the surface of the connecting rod, facilitating the placement of multiple processing materials using a "V"-shaped transmission steel belt. The adjusting belt drives the processing materials to tumble. A connecting disc and an adjusting disc are driven to the inner wall of the synchronous belt. The inner wall of the connecting disc is mounted on one end of a rotating shaft, allowing the rotating shaft to drive the adjusting belt. A slide rail is slidably installed on the inner wall of the adjusting frame, facilitating the vertical movement of the adjusting frame. A threaded rod is rotatably connected to the top of the adjusting frame, allowing the rotation of the threaded rod to control the vertical movement of the adjusting frame. Compared with existing technologies, this method effectively improves the processing efficiency of the hot rolling mill.

[0016] 2. A slider can also be installed at one end of the adjusting plate. The surface of the slider is slidably connected to the inner wall of the heating box. This ensures the connection between the synchronous belt and the connecting plate and adjusting plate when the slider moves up and down with the adjusting frame. A spring is installed at one end of the adjusting plate to keep the synchronous belt on the surface of the adjusting plate taut. A limit roller is rotatably installed on the inner wall of the heating box. Several auxiliary grooves are opened on the surface of the limit roller to avoid the problem of processing materials piling up and affecting the heating effect. This effectively improves the performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a hot rolling mill with automatic bar flipping according to an embodiment of the application;

[0018] Figure 2 This is a schematic diagram of the adjustment frame structure according to an embodiment of the application;

[0019] Figure 3 This is a side view of the embodiment of the application.

[0020] Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Heating box; 2. Motor; 3. Rotating shaft; 4. Transmission steel belt; 5. Adjusting frame; 6. Rotating rod; 7. Adjusting belt; 8. Connecting gear; 9. Connecting rod; 10. Synchronous belt; 11. Connecting disc; 12. Adjusting disc; 13. Slider; 14. Spring; 15. Slide rail; 16. Threaded rod; 17. Limiting roller; 18. Auxiliary groove. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0023] This application discloses an automatic bar-turning hot rolling mill, referring to... Figure 1 - Figure 2The system includes a heating box 1. In use, a motor 2 is mounted on the surface of the heating box 1. The output end of the motor 2 is connected to a transmission steel belt 4 via a rotating shaft 3. The processed material is moved by the transmission steel belt 4 and a high-frequency current is generated by the heating box 1 through a medium-frequency power supply system. This generates a magnetic field in the inductor, which in turn generates eddy currents in the metal processed material, thereby heating the processed material. An adjusting frame 5 is installed inside the heating box 1. Several rotating rods 6 are rotatably connected to the inner wall of the adjusting frame 5. An adjusting belt 7 is installed on the surface of the rotating rods 6. A connecting rod 9 is installed at one end of the rotating rod 6 via a connecting gear 8. A synchronous belt 10 is connected to the surface of the connecting rod 9. The "V"-shaped transmission steel belt 4 facilitates the placement of multiple processed materials. The synchronous belt 10 drives the connecting rod 9 to rotate, controlling the rotation of the rotating rod 6 at one end of the connecting gear 8. This causes the adjusting belt 7 to rotate the processed material, thereby improving the heating efficiency of the processed material.

[0024] Reference Figure 2 The inner wall of the synchronous belt 10 is connected to the connecting disc 11 and the adjusting disc 12. The inner wall of the connecting disc 11 is installed at one end of the rotating shaft 3. The rotating shaft 3 drives the adjusting belt 7 to drive, thus avoiding the need to install an additional drive mechanism. The inner wall of the adjusting frame 5 is slidably installed with a slide rail 15. The surface of the slide rail 15 is slidably connected to the inner wall of the heating box 1. The slide rail 15 facilitates the up and down movement of the adjusting frame 5, thereby separating the synchronous belt 10 from the processing material during the processing material transfer. The top of the adjusting frame 5 is rotatably connected with a threaded rod 16. Rotating the threaded rod 16 controls the up and down movement of the adjusting frame 5.

[0025] Reference Figure 2 - Figure 4 A slider 13 is installed at one end of the adjusting plate 12. The surface of the slider 13 is slidably connected to the inner wall of the heating box 1. The slider 13 facilitates the movement of the adjusting plate 12, thereby ensuring the connection effect between the synchronous belt 10, the connecting plate 11, and the adjusting plate 12 when the adjusting frame 5 moves up and down. A spring 14 is installed at one end of the adjusting plate 12. One end of the spring 14 is connected to the inner wall of the heating box 1. The spring 14 pulls one end of the adjusting plate 12, thereby keeping the synchronous belt 10 on the surface of the adjusting plate 12 taut. A limiting roller 17 is rotatably installed on the inner wall of the heating box 1. Several auxiliary grooves 18 are opened on the surface of the limiting roller 17. The auxiliary grooves 18 increase the friction of the limiting roller 17 on the processed material. The limiting roller 17 limits several processed materials, avoiding the problem of processed materials piling up and affecting the heating effect.

[0026] The implementation principle of an automatic rotating bar hot rolling mill according to an embodiment of this application is as follows: An adjusting frame 5 is installed inside a heating box 1. Several rotating rods 6 are rotatably connected to the inner wall of the adjusting frame 5. An adjusting belt 7 is mounted on the surface of each rotating rod 6. A connecting rod 9 is mounted at one end of each rotating rod 6 via a connecting gear 8. A synchronous belt 10 is connected to the surface of the connecting rod 9, facilitating the placement of multiple processing materials using a "V"-shaped transmission steel belt 4. The synchronous belt 10 drives the connecting rod 9 to rotate, controlling the rotation of the rotating rod 6 at one end of the connecting gear 8, causing the adjusting belt 7 to rotate the processing materials, thereby improving processing efficiency. To improve the heating efficiency of the material, the inner wall of the synchronous belt 10 is connected to a connecting disc 11 and an adjusting disc 12. The inner wall of the connecting disc 11 is installed at one end of the rotating shaft 3 so that the adjusting belt 7 can be driven by the rotation of the rotating shaft 3, thereby avoiding the installation of an additional drive mechanism. The inner wall of the adjusting frame 5 is slidably installed with a slide rail 15. The surface of the slide rail 15 is slidably connected to the inner wall of the heating box 1 so that the adjusting frame 5 can be moved up and down by means of the slide rail 15, thereby separating the synchronous belt 10 from the material during material transfer. The top of the adjusting frame 5 is rotatably connected with a threaded rod 16 so that the adjusting frame 5 can be moved up and down by rotating the threaded rod 16.

[0027] A slider 13 can also be installed at one end of the adjusting plate 12. The surface of the slider 13 is slidably connected to the inner wall of the heating box 1, so that the adjusting plate 12 can be moved easily with the help of the slider 13. This ensures the connection effect between the synchronous belt 10 and the connecting plate 11 and the adjusting plate 12 when the adjusting frame 5 moves up and down. A spring 14 is installed at one end of the adjusting plate 12. One end of the spring 14 is connected to the inner wall of the heating box 1, so that one end of the adjusting plate 12 can be pulled with the help of the spring 14, so that the synchronous belt 10 on the surface of the adjusting plate 12 is kept taut. A limiting roller 17 is rotatably installed on the inner wall of the heating box 1. Several auxiliary grooves 18 are opened on the surface of the limiting roller 17. The auxiliary grooves 18 increase the friction of the limiting roller 17 on the processed material, so that several processed materials can be limited with the help of the limiting roller 17, avoiding the problem of processed materials piling up and affecting the heating effect.

[0028] 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. A hot rolling mill for automatically flipping bars, comprising a heating box (1) and an adjusting frame (5), characterized in that: A plurality of motors (2) are fixedly installed at one end of the heating box (1). A rotating shaft (3) is fixedly connected to the output end of the motor (2). A transmission steel belt (4) is connected to the surface of the plurality of rotating shafts (3). A plurality of rotating rods (6) are rotatably installed on the inner wall of the adjusting frame (5). An adjusting belt (7) is connected to the surface of the plurality of rotating rods (6). A connecting gear (8) is meshed at one end of the rotating rod (6). A connecting rod (9) is fixedly installed at one end of the connecting gear (8). A synchronous belt (10) is connected to the surface of the connecting rod (9).

2. The automatic bar-turning hot rolling mill according to claim 1, characterized in that: The surface of the rotating shaft (3) is rotatably mounted to the inner wall of the heating box (1), the surface of the adjusting frame (5) is slidably connected to the inner wall of the heating box (1), the cross section of the adjusting belt (7) is triangular, the center of the connecting gear (8) and the center of the connecting rod (9) are on the same straight line, and the cross section of the transmission steel belt (4) is "V" shaped.

3. The automatic bar-turning hot rolling mill according to claim 1, characterized in that: The inner wall of the synchronous belt (10) is equipped with a connecting disc (11) and an adjusting disc (12). The inner wall of the connecting disc (11) is fixedly connected to one end of the rotating shaft (3), and the center of the connecting disc (11) and the center of the rotating shaft (3) are on the same straight line.

4. The automatic bar-turning hot rolling mill according to claim 1, characterized in that: The inner wall of the adjusting frame (5) has two slide rails (15) slidably installed. The two slide rails (15) are symmetrically distributed about the adjusting frame (5) and the surface of the slide rails (15) is fixedly connected to the inner wall of the heating box (1). The size of the surface of the slide rails (15) is compatible with the size of the inner wall of the adjusting frame (5).

5. The automatic bar-turning hot rolling mill according to claim 1, characterized in that: A threaded rod (16) is rotatably mounted on the top of the adjusting frame (5). The surface of the threaded rod (16) is threadedly connected to the inner wall of the heating box (1), and the center of the threaded rod (16) is on the same straight line as the center of the adjusting frame (5).

6. The automatic bar-turning hot rolling mill according to claim 3, characterized in that: A slider (13) is rotatably mounted on one end of the adjustment disc (12). The slider (13) has a "T" shaped cross section and its surface is slidably connected to the inner wall of the heating box (1).

7. The automatic bar-turning hot rolling mill according to claim 3, characterized in that: One end of the adjusting disc (12) is rotatably mounted with a spring (14), and one end of the spring (14) is fixedly connected to the inner wall of the heating box (1).

8. The automatic bar-turning hot rolling mill according to claim 1, characterized in that: The inner wall of the heating box (1) is rotatably mounted with a limiting roller (17). The surface of the limiting roller (17) is provided with a number of auxiliary grooves (18). The number of auxiliary grooves (18) are arranged in a circular array with the center of the limiting roller (17) as the axis.

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