Calibration tool of hot straightening machine

Abstract

The utility model provides a calibration tool of a hot straightening machine, which belongs to the technical field of production equipment for steel mills, aims to solve the problems that the calibration accuracy and consistency of the hot straightening machine are difficult to guarantee, the automation degree is low and the precision is not high enough, and comprises a calibration piece, the calibration pieces are installed on the left side and the right side of the hot straightening machine, each calibration piece comprises a fixed supporting rod, a balance plate and an angle indexing meter, and the top face of each fixed supporting rod is rotationally connected with the corresponding balance plate through a shaft. After the inner end of the balance plate is lifted up through upward movement of the adjusting screw rod, the balance plate rotates through the shaft and drives the pressing block to rotate downwards at the same time, the angle indexing meter is pressed to generate angle change, deviation of roll gaps at four corners can be accurately measured and calibrated, it is ensured that the straightening machine is always kept in a stable roll gap state in the working process, and the working efficiency is improved. And the measurement and calibration work of the four-corner roll gap can be automatically completed, manual intervention is reduced, and the calibration efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production equipment for steel rolling mills, and more specifically, relates to a calibration tool for a thermal straightening machine. Background Art

[0002] Hot levelers are essential equipment in steel mills, primarily used for straightening medium and thick plates. Using straightening rollers, these machines bend and deform the material, altering its straightness to achieve the desired dimensional tolerances and shape. However, after prolonged continuous operation, these machines often experience deviations in the four-corner roll gap. This not only affects the quality of the finished plate shape but also increases the unevenness of the plate, impacting the quality and performance of the final product.

[0003] Traditional thermal straightening machine calibration methods usually rely on manual measurement and adjustment. This method is not only inefficient, but also difficult to ensure the accuracy and consistency of calibration. It also has a low degree of automation and insufficient precision. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a calibration tool for a thermal straightener, aiming to solve the problems that the existing thermal straightener calibration is difficult to ensure the accuracy and consistency of calibration, and has a low degree of automation and insufficient precision.

[0005] A calibration tool for a heat straightening machine is achieved by the following specific technical means:

[0006] A calibration tool for a thermal straightening machine comprises: a calibration piece; the calibration piece is installed on the left and right sides of the thermal straightening machine, the calibration piece includes a fixed support rod, a balance plate and an angle protractor, the top surface of the fixed support rod is rotatably connected to the balance plate via an axis, and the angle protractor is installed between the inside of the fixed support rod and the balance plate; the thermal straightening machine comprises a thermal straightening machine component and a lower roller system, an adjustment screw is installed on the top surface of the thermal straightening machine component, the lower roller system is installed below the thermal straightening machine component, and an adjustment component is installed on the top surface of the thermal straightening machine component.

[0007] Furthermore, the top surface of the lower roller system is movably connected to a pressure roller via an axis, and the pressure roller is located directly below the working roller.

[0008] Furthermore, the bottom surface of the fixed support rod is fixed and vertically welded with a reinforcement plate, the outer top of the fixed support rod is fixedly provided with an extension plate, the top of the fixed support rod is movably connected to the balance plate through an axis, the length from the outer side of the axis to the end of the balance plate is greater than the length from the inner side of the axis to the end, the inner end of the balance plate is attached to the top surface of the adjusting screw, and a pressure block is fixedly provided on the bottom surface of the outer end of the balance plate, an angular protractor is plugged into the inside of the extension plate, the angular protractor is an arc structure and a reference plate is fixedly connected to the outside, when the reference plate is attached to the bottom surface of the extension plate, the angular protractor returns to zero, and a spring is provided on the outside of the angular protractor, one end of the spring is connected to the fixed support rod, and the other end of the spring is connected to the reference plate.

[0009] Furthermore, the adjusting component includes a connecting plate, a hydraulic cylinder and a reduction gear box. The top of the connecting plate is fixedly hoisted above the hot straightening machine. The bottom surface of the connecting plate is fixedly connected to the hydraulic cylinder. The bottom end of the push rod of the hydraulic cylinder is fixedly connected to the top surface of the upper roller system. The bottom surface of the connecting plate is fixedly connected to the reduction gear box. The side of the reduction gear box and the bottom surface of the connecting plate are fixedly connected to the motor. After the motor is started through the external circuit control end, the transmission ratio can be adjusted through the reduction gear box. The adjusting screw is driven to rotate by the reduction gear box to realize fine adjustment of the four-corner roller gap of the upper roller system.

[0010] Furthermore, the hot straightening machine components include an upper roller system and working rollers, the working rollers are installed on the bottom surface of the upper roller system, and four adjusting screws are installed on the top surface of the upper roller system.

[0011] The utility model has at least the following beneficial effects:

[0012] The utility model is provided with a calibration part. When the inner end of the balance plate is lifted by the upward movement of the adjusting screw, the balance plate rotates through the shaft, and at the same time drives the pressure block to rotate downward, pressing the angle protractor to change the angle, which can accurately measure and calibrate the deviation of the four-corner roller gap, ensure that the straightening machine always maintains a stable roller gap state during operation, and can automatically complete the measurement and calibration of the four-corner roller gap, reducing manual intervention and improving calibration efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the regulating component of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the components of the thermal straightening machine of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the adjusting screw of the utility model.

[0016] Figure 4 It is a structural diagram of the calibration component of the utility model.

[0017] Figure 5 This utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0019] 1. Hot straightening machine parts; 11. Upper roller system; 12. Working roller;

[0020] 2. Lower roller system; 201, pressure roller;

[0021] 3. Adjusting components; 31. Connecting plate; 32. Hydraulic cylinder; 33. Reducer;

[0022] 4. Adjusting screw;

[0023] 5. Calibration parts; 51. Fixed support rod; 5101. Extension plate; 5102. Reinforcement plate; 52. Balance plate; 5201. Pressure block; 53. Angle protractor; 5301. Reference plate. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0025] Example: As shown in the attached Figure 1 To the attached Figure 5 As shown:

[0026] The utility model provides a calibration tool for a thermal straightening machine, comprising a calibration piece 5; the calibration piece 5 is installed on the left and right sides of the thermal straightening machine, the calibration piece 5 includes a fixed support rod 51, a balance plate 52 and an angular protractor 53, the top surface of the fixed support rod 51 is rotatably connected to the balance plate 52 through an axis, and the angular protractor 53 is installed between the inside of the fixed support rod 51 and the balance plate 52; the thermal straightening machine comprises a thermal straightening machine component 1 and a lower roller system 2, an adjusting screw 4 is installed on the top surface of the thermal straightening machine component 1, the lower roller system 2 is installed below the thermal straightening machine component 1, and an adjusting component 3 is installed on the top surface of the thermal straightening machine component 1.

[0027] As attached Figure 1 and attached Figure 2 As shown, the adjusting component 3 includes a connecting plate 31, a hydraulic cylinder 32 and a reduction gearbox 33. The top of the connecting plate 31 is fixedly hoisted above the hot straightening machine, the bottom surface of the connecting plate 31 is fixedly connected to the hydraulic cylinder 32, the bottom end of the push rod of the hydraulic cylinder 32 is fixedly connected to the top surface of the upper roller system 11, the bottom surface of the connecting plate 31 is fixedly connected to the reduction gearbox 33, and the side of the reduction gearbox 33 and the bottom surface of the connecting plate 31 are fixedly connected to the motor. After the motor is started by the external circuit control end, the transmission ratio can be adjusted through the reduction gearbox 33, and the adjusting screw 4 is driven to rotate by the reduction gearbox 33 to realize the fine adjustment of the four-corner roll gap of the upper roller system 11.

[0028] As attached Figure 1 and attached Figure 2 As shown, the top surface of the lower roller system 2 is movably connected to a pressure roller 201 through an axis. The pressure roller 201 is located directly below the working roller 12. After calibrating the roller gap between the working roller 12 and the pressure roller 201, hot straightening operations can be performed to obtain steel of the required thickness.

[0029] As attached Figure 2 and attached Figure 4 As shown, the bottom surface of the fixed support rod 51 is fixed and vertically welded with a reinforcement plate 5102, the outer top of the fixed support rod 51 is fixedly provided with an extension plate 5101, the top of the fixed support rod 51 is movably connected to the balance plate 52 through an axis, the length from the outer side of the axis to the end of the balance plate 52 is greater than the length from the inner side of the axis to the end, the inner end of the balance plate 52 is attached to the top surface of the adjusting screw 4, the outer bottom surface of the balance plate 52 is fixedly provided with a pressure block 5201, the interior of the extension plate 5101 is plugged into the angle protractor 53, the angle protractor 53 is an arc-shaped structure and is fixedly connected to the outside with a reference plate 5301, and the reference plate 5301 is attached to the extension plate 5101, the angular protractor 53 returns to zero, and a spring is provided on the outside of the angular protractor 53, one end of the spring is connected to the fixed support rod 51, and the other end of the spring is connected to the reference plate 5301. When the inner end of the balancing plate 52 is lifted by the upward movement of the adjusting screw 4, the balancing plate 52 rotates through the axis, and at the same time drives the pressure block 5201 to rotate downward, pressing the angular protractor 53 to change the angle, thereby assisting in calibrating the four-corner roller gap and improving the calibration accuracy. When the adjusting screw 4 moves downward, the spring can assist in resetting the balancing plate 52, ensuring that the inner end of the balancing plate 52 is always in contact with the top surface of the adjusting screw 4.

[0030] As attached Figure 2 As shown, the hot straightening machine component 1 includes an upper roll system 11 and a working roll 12. The working roll 12 is installed on the bottom surface of the upper roll system 11. Four adjusting screws 4 are installed on the top surface of the upper roll system 11. The four-corner roll gap of the upper roll system 11 is adjusted by adjusting the screws 4, thereby finely calibrating the four-corner roll gap of the hot straightening machine.

[0031] The specific usage and function of this embodiment are as follows:

[0032] In the present invention, after the motor is started by the external circuit control end, the transmission ratio can be adjusted by the reduction box 33, and the adjustment screw 4 is driven by the reduction box 33 to rotate, thereby realizing the adjustment of the four-corner roll gap of the upper roller system 11;

[0033] After the inner end of the balance plate 52 is lifted by the upward movement of the adjusting screw 4, the balance plate 52 rotates through the axis, and at the same time drives the pressure block 5201 to rotate downward, pressing the angle protractor 53 to change the angle, thereby assisting in calibrating the four-corner roller gap, automatically adjusting the transmission ratio of the reduction box 33 and the adjustment height of the adjusting screw 4, and improving the calibration accuracy.

Claims

1. A calibration tool for a thermal straightening machine, comprising a calibration piece (5); characterized in that: The calibration component (5) is installed on the left and right sides of the heat straightening machine. The calibration component (5) includes a fixed support rod (51), a balance plate (52) and an angular protractor (53). The top surface of the fixed support rod (51) is connected to the balance plate (52) through an axis rotation. The angular protractor (53) is installed between the inside of the fixed support rod (51) and the balance plate (52). The heat straightening machine includes a heat straightening machine component (1) and a lower roller system (2). The top surface of the heat straightening machine component (1) is installed with an adjusting screw (4). The lower roller system (2) is installed below the heat straightening machine component (1), and the top surface of the heat straightening machine component (1) is installed with an adjusting component (3).

2. A calibration tool for a thermal straightening machine according to claim 1, characterized in that: The hot straightening machine component (1) comprises an upper roller system (11) and a working roller (12), wherein the working roller (12) is mounted on the bottom surface of the upper roller system (11), and four adjusting screws (4) are mounted on the top surface of the upper roller system (11).

3. A calibration tool for a thermal straightening machine according to claim 2, characterized in that: The top surface of the lower roller system (2) is movably connected to a pressure roller (201) via an axis, and the pressure roller (201) is located directly below the working roller (12).

4. A calibration tool for a thermal straightening machine according to claim 2, characterized in that: The adjusting component (3) includes a connecting plate (31), a hydraulic cylinder (32) and a reduction gear box (33). The top of the connecting plate (31) is fixedly hoisted above the hot straightening machine. The bottom surface of the connecting plate (31) is fixedly connected to the hydraulic cylinder (32). The bottom end of the push rod of the hydraulic cylinder (32) is fixedly connected to the top surface of the upper roller system (11). The bottom surface of the connecting plate (31) is fixedly connected to the reduction gear box (33). The side of the reduction gear box (33) and the bottom surface of the connecting plate (31) are fixedly connected to the motor.

5. The calibration tool for a thermal straightening machine according to claim 1, characterized in that: The bottom surface of the fixed support rod (51) is fixed and vertically welded with a reinforcement plate (5102); the outer top of the fixed support rod (51) is fixedly provided with an extension plate (5101); the top of the fixed support rod (51) is movably connected to the balance plate (52) via a shaft; the length from the outer side of the shaft of the balance plate (52) to the end is greater than the length from the inner side of the shaft to the end; the inner end of the balance plate (52) is attached to the top surface of the adjusting screw (4); the bottom surface of the outer end of the balance plate (52) is fixedly provided with a pressure block (5201); and the interior of the extension plate (5101) is plugged with an angular indexer (53).

6. A calibration tool for a thermal straightening machine according to claim 5, characterized in that: The angular protractor (53) is an arc-shaped structure and is fixedly connected to a reference plate (5301) on the outside. When the reference plate (5301) is attached to the bottom surface of the extension plate (5101), the angular protractor (53) returns to zero. A spring is provided on the outside of the angular protractor (53), one end of the spring is connected to the fixed support rod (51), and the other end of the spring is connected to the reference plate (5301).

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