Intelligent heat treatment production with laser measurement deviation correction mechanism of roll material conveying device and method thereof

Abstract

The present application relates to the technical field of roll material conveying, in particular to a roll material conveying device with a laser measurement deviation correction mechanism for intelligent heat treatment production and a method thereof, comprising a winding machine, a conveying belt group and a plurality of laser measurement units, the plurality of laser measurement units are symmetrically arranged on the side of the conveying belt group, and are used for collecting the edge position information of the two sides of the strip in a non-contact manner in real time; a deviation correction execution mechanism is arranged on the conveying belt group and located upstream of the winding machine, and is used for adjusting the transverse position of the strip during conveying; a control unit is electrically connected with the laser measurement unit and the deviation correction execution mechanism respectively, receives the edge position information and calculates the transverse deviation ΔP and the deviation direction of the strip. By using the laser displacement sensor to obtain the accurate coordinate value of the edge of the strip, the quantitative measurement of the deviation is realized; by calculating the real-time center position through the double-side edge position data and comparing with the reference, the deviation with positive and negative signs is obtained, which provides a data basis for accurate deviation correction.

Description

Technical Field

[0001] This invention relates to the field of rolled material conveying technology, specifically to a rolled material conveying device and method with a laser measurement and correction mechanism for intelligent heat treatment production. Background Technology

[0002] On a metal strip heat treatment production line, after undergoing continuous annealing, quenching, and tempering, the strip needs to be conveyed to the coiling station for winding. During long-distance conveying, the strip is highly susceptible to lateral deviation due to factors such as roller parallelism errors, tension fluctuations, and inherent camber or poor strip shape. Deviation not only results in uneven coiled edges, affecting product appearance and subsequent processing, but in severe cases, it can even cause unstable tension within the coil, posing a safety hazard.

[0003] In existing technologies, solutions for correcting steel strip conveying deviation are mainly divided into two categories: mechanical contact type and photoelectric detection type. CN103010704A discloses a steel strip deviation correction system and method. This system uses a laser emitter and a photosensitive sensor; when the steel strip deviates and blocks light, the photosensitive sensor emits a deviation signal, which is then activated by the control center to drive the correction device. This solution initially achieves non-contact detection, but its detection method is based on obstruction, only able to determine whether deviation has occurred, and cannot provide precise quantitative data on the amount of deviation, thus limiting the correction accuracy. Furthermore, this solution does not disclose the specific high-precision actuator transmission structure, making it difficult to meet the requirements of high-speed, precision winding.

[0004] Therefore, for the specific application scenario of winding and conveying heat-treated rolled materials, how to achieve high-precision, non-contact, and low-damage real-time dynamic correction remains a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] To overcome the deficiencies in the prior art, the present invention aims to provide a roll material conveying device and method with a laser measurement and correction mechanism for intelligent heat treatment production. The device quantifies the edge position of the strip in real time through a high-precision laser displacement sensor, calculates the precise offset by combining a specific algorithm, and drives a high-performance servo correction actuator to make dynamic adjustments, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, on the one hand, the present invention provides a roll material conveying device with a laser measurement and correction mechanism for intelligent heat treatment production, which is used to convey the strip material to the winding station and perform real-time correction after the heat treatment process. It includes a winding machine and a conveyor belt group, and also includes several laser measurement units symmetrically arranged on the side of the conveyor belt group, which are used to collect edge position information of both sides of the strip material in real time in a non-contact manner. A belt alignment actuator is mounted on the conveyor belt assembly and located upstream of the winding machine, and is used to adjust the lateral position of the belt material during the conveying process; The control unit is electrically connected to both the laser measurement unit and the correction actuator, and is configured as follows: Receive the edge position information and calculate the lateral offset ΔP and offset direction of the strip; When ΔP meets the preset correction conditions, a correction command is generated to drive the correction actuator to restore the lateral position of the strip to the reference position.

[0007] As a further improvement to this technical solution, the correction actuator is a side guide mechanism, including at least one pair of side guide rods, which are symmetrically arranged on both sides of the width direction of the conveyor belt group, and the distance L between the installation position of the side guide rod and the inlet end of the winding machine satisfies: L≥3×W, where W is the maximum width of the belt material; A plurality of first servo motors are connected to a plurality of the side guide rods for transmission, and are used to independently drive the side guide rods to move in the lateral direction perpendicular to the conveying direction; The control unit operates a PID position controller, which takes the lateral offset ΔP as input and outputs the target feed amount S. The control unit converts S into the first number of pulses required by the first servo motor and drives the side guide rod with the corresponding positive offset to move a preset displacement.

[0008] As a further improvement to this technical solution, the bottom sidewall of the side guide rod is provided with guide blocks and pressure rollers spaced apart from bottom to top, which are used to guide the strip to be lifted and the strip to be clamped and adjusted for lateral displacement under the drive of the first servo motor.

[0009] As a further improvement to this technical solution, the correction actuator is a guide wheel mechanism, which includes several rows of deflecting wheels connected in series. The deflecting wheels are arranged along the conveying direction and embedded in the middle isolation space of the conveyor belt group. The highest point of the wheel rim of the deflecting wheel is higher than the preset height of the conveying surface, so that it can contact the bottom surface of the belt material and guide the conveying when it rotates. The deflection drive assembly is connected to each set of deflection wheels through gear meshing and transmission. It is used to drive the deflection wheels to deviate from the conveying direction and form a deflection angle α. Then the bottom surface of the strip is displaced with the deflection wheel and forms an angle α with the conveying direction.

[0010] As a further improvement to this technical solution, the control unit converts the lateral offset ΔP into a deflection angle α in the following manner: Let the length of the effective working section of the deflector be L, the conveying speed of the strip be V, and the time it takes for a point on the strip to pass through the effective working section be t = L / V; When the deflection angle of the deflector wheel is α, the lateral velocity component Vx on the strip is V×tan(α); the lateral displacement completed by the strip in time t is Vx×t; Let the lateral displacement be equal to the offset to be corrected, |ΔP|, that is, V×tan(α)×(L / V)=|ΔP|, so tan(α)=|ΔP| / L; The control unit calculates the deflection angle α accordingly, and introduces a slip correction coefficient k based on the actual operating conditions to obtain the actual control deflection angle α = arctan(|ΔP| / (k×L)); The control unit drives the deflection wheel to deflect to the actual controlled deflection angle α, wherein when ΔP indicates that the strip deflects in the first direction, the deflection wheel deflects in the opposite direction.

[0011] As a further improvement to this technical solution, a fixed belt group is provided in the middle conveying area of ​​the conveyor belt group. Several rows of rotating frames are fixedly arranged coaxially inside the fixed belt group. The deflecting wheel is engaged with the rotating frame through the central shaft and rotates horizontally. The central shaft of the deflecting wheel is fitted with a rotating frame for driving the deflecting wheel to deflect.

[0012] As a further improvement to this technical solution, the deflection drive assembly includes a second servo motor and a gear transmission pair, wherein the output shaft of the second servo motor is connected to the rotating frame through the gear transmission pair. Let the reduction ratio of the gear transmission pair be i, and the angle that the second servo motor rotates for each pulse received be θ. Then the number of pulses N output by the control unit according to the actual control deflection angle α is: N = α / (θ × i).

[0013] As a further improvement to this technical solution, the rim surface of the deflecting wheel is covered with a layer of elastic material with a high coefficient of friction to increase the friction between the deflecting wheel and the bottom surface of the strip.

[0014] As a further improvement to this technical solution, the winding machine includes an upper clamping roller located above and a pair of lower clamping rollers located below; the upper clamping roller has a large diameter in the middle and small diameter at both ends, and the lower clamping roller has a small diameter in the middle and large diameter at both ends, which is used to control and realize the automatic centering and winding of the rolled material.

[0015] On the other hand, the present invention provides a method for conveying rolled materials with a laser measurement and correction mechanism for intelligent heat treatment production. Using the aforementioned rolled material conveying device with a laser measurement and correction mechanism for intelligent heat treatment production, the method includes the following steps: S1. After the heat treatment process, the strip is conveyed to the winding machine via a conveyor belt assembly; S2. During the conveying process, a pair of laser measuring units located away from the winding machine are used to collect the edge position information of the strip in real time without contact. S3. The control unit receives the edge position information and calculates the lateral offset ΔP. S4. When ΔP continues to exceed the threshold, or when the drive side guide mechanism moves in the lateral direction, apply a lateral thrust to the side of the strip where ΔP is positive to correct the lateral position. S5. When ΔP continues to exceed the threshold, or when each deflection wheel in the drive guide wheel mechanism deviates from the conveying direction and forms a reverse deflection angle α with the deflection direction of the strip, the strip is guided to generate a lateral component when the deflection wheel rotates, and the strip is guided to complete the lateral displacement correction while being conveyed forward. S6. Repeat S2 to S5 to form a closed loop until the strip enters the winding machine to complete winding.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The intelligent heat treatment production roll material conveying device and method with laser measurement and correction mechanism achieves quantitative measurement of offset by using a laser displacement sensor to obtain the precise coordinate value of the strip edge, rather than just outputting a switch signal indicating whether it is blocked; the control unit runs a proprietary real-time offset calculation algorithm, calculates the real-time center position through the position data of both sides of the edge and compares it with the reference to obtain the offset with positive and negative signs, providing a data basis for accurate correction.

[0017] 2. The intelligent heat treatment production roll material conveying device and method with laser measurement and correction mechanism provides two preferred solutions by setting a correction execution mechanism: a servo-driven centering side guide plate mechanism and an embedded guide wheel group mechanism, both of which achieve precise control of displacement or angle. Attached Figure Description

[0018] The accompanying drawings described herein are for illustrative purposes only. The shapes and proportions of the components in the drawings are merely schematic and intended to aid in understanding the invention. They are not intended to specifically limit the shapes and proportions of the components of the invention.

[0019] Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 For the present invention Figure 2 Front view; Figure 3 This is a schematic diagram of the assembly structure of the side guide mechanism of the present invention; Figure 4 This is the second schematic diagram of the overall structure of the present invention; Figure 5 For the present invention Figure 4 Front view; Figure 6 For the present invention Figure 5 Top view; Figure 7This is a schematic diagram of the assembly structure of the guide wheel mechanism of the present invention; Figure 8 This is an exploded view of the guide wheel mechanism of the present invention; The meanings of the labels in the diagram are as follows: 100. Winding machine; 110. Upper clamping roller; 120. Lower clamping roller; 200. Conveyor belt assembly; 210. Laser measurement unit; 220. Fixed belt assembly; 300. Side guide mechanism; 310. Side guide rod; 311. Guide block; 320. Pressure roller; 330. Lead screw; 340. First servo motor; 350. Hanging rod; 360. Coupling; 400, Guide wheel mechanism; 410, Deflection wheel; 420, Rotating frame; 430, Rotating frame; 440, Second servo motor. Detailed Implementation

[0020] Under the guidance of this invention, any possible variations of this invention by those skilled in the art should be considered within its scope. The directional terms used herein are based on the orientations shown in the accompanying drawings and are for ease of description and simplification; therefore, they should not be construed as limitations on the invention. Furthermore, in the description of this invention, "several" means two or more, unless otherwise explicitly specified. Example 1

[0021] Please see Figures 1-3 As shown, the present invention provides a roll material conveying device with laser measurement and correction mechanism for intelligent heat treatment production, which is used to convey the strip material to the winding station and perform real-time correction after the heat treatment process. It includes a winding machine 100 and a conveyor belt group 200, and also includes several laser measurement units 210, which are symmetrically arranged on the side of the conveyor belt group 200, for collecting edge position information of both sides of the strip material in real time in a non-contact manner. The belt alignment actuator is located on the conveyor belt assembly 200 and upstream of the winding machine 100, and is used to adjust the lateral position of the belt during the conveying process. The control unit is electrically connected to the laser measurement unit 210 and the correction actuator, respectively, and is configured as follows: Receive edge position information and calculate the lateral offset ΔP and offset direction of the strip; When ΔP meets the preset correction conditions, a correction command is generated to drive the correction actuator to restore the lateral position of the strip to the reference position.

[0022] Specifically, the correction mechanism is a side guide mechanism 300, which includes at least one pair of side guide rods 310, symmetrically arranged on both sides of the width direction of the conveyor belt group 200, and the distance L between the installation position of the side guide rod 310 and the inlet end of the winding machine 100 satisfies: L≥3×W, where W is the maximum width of the belt. Several first servo motors 340 are correspondingly connected to several side guide rods 310 for transmission, and are used to independently drive the side guide rods 310 to move in the lateral direction perpendicular to the conveying direction; The control unit operates a PID position controller, which adjusts and controls the position of the system through three links: proportional, integral, and derivative, so that the system can operate more accurately and stably. This is existing technology and will not be described in detail here. The PID position controller takes the lateral offset ΔP as input and outputs the target feed amount S. The control unit converts S into the first pulse number required by the first servo motor 340, and drives the side guide rod 310 with the corresponding positive offset to move a preset displacement.

[0023] Furthermore, to prevent the strip edge from being squeezed and rolled, the bottom side wall of the side guide rod 310 is provided with guide blocks 311 and pressure rollers 320 spaced from bottom to top, which are used to guide the strip to be lifted and rolled to adjust the lateral displacement under the drive of the first servo motor 340. On both sides of the conveyor belt group 200 at a distance L≥3W (W is the maximum width of the strip) from the inlet end of the winding machine 100, a pair of uprights are provided. The first servo motor 340 is mounted on the uprights. The first servo motor 340 is coaxially connected to the lead screw 330. The top of the side guide rod 310 has a threaded hole and is threaded to the lead screw 330. A hanger 350 is inserted between the tops of the pair of side guide rods 310 to guide the side guide rods 310 to move laterally and straight. A coupling 360, such as a bearing, is connected between the pair of lead screws 330 to connect the pair of lead screws 330 and maintain independent rotational movement.

[0024] Furthermore, the winding machine 100 includes an upper clamping roller 110 located above and a pair of lower clamping rollers 120 located below; the upper clamping roller 110 has a large diameter in the middle and small diameter at both ends, and the lower clamping rollers 120 have a small diameter in the middle and large diameter at both ends, which are used to control and realize the automatic centering and winding of the rolled material.

[0025] The present invention provides a method for conveying rolled materials with a laser measurement and correction mechanism for intelligent heat treatment production, using the aforementioned rolled material conveying device with a laser measurement and correction mechanism for intelligent heat treatment production, comprising the following steps: S1. After the heat treatment process, the strip is conveyed to the winding machine 100 via the conveyor belt group 200; S2. During the conveying process, a pair of laser measuring units 210 located away from the winding machine 100 are used to collect the edge position information of the strip in real time without contact. S3. The control unit receives edge position information and calculates the lateral offset ΔP. S4. When ΔP continuously exceeds the threshold, or when the drive side guide mechanism 300 moves in the lateral direction, a lateral thrust is applied to the side of the strip where ΔP is positive to correct the lateral position; a positive ΔP on the strip indicates that the side of the strip deviates from the detection baseline of the laser measurement unit. S5. Repeat S2 to S4 to form a closed loop until the strip enters the winding machine 100 to complete the winding.

[0026] Specifically, the laser measurement unit 210 uses laser displacement sensors with a sampling frequency of 1kHz and a linearity of ±0.02%FS. Two laser displacement sensors correspond to the left and right edges of the strip, respectively, and their installation spacing is adjustable to accommodate different width specifications.

[0027] Correction mechanism: The first servo motor 340 is instructed by the control unit to rotate in both directions, driving the side guide rod 310 to perform feed or retraction movements in the lateral direction perpendicular to the conveying direction. The surfaces of the side guide rod 310 and the pressure roller 320 are coated with a tungsten carbide-based high-temperature and wear-resistant coating.

[0028] Control unit: It adopts an industrial programmable logic controller (PLC) or an embedded industrial computer as the control core, and is equipped with analog input module and pulse output module.

[0029] Real-time offset calculation algorithm: Initial calibration: Accurately center the strip with a standard width of W. The left laser displacement sensor measures the reference coordinate value XL of the left edge, and the right laser displacement sensor measures the reference coordinate value XR of the right edge. The reference center position P = (XL + XR) / 2.

[0030] Online calculation: In each sampling period, the real-time coordinates of the left edge (XL) and the real-time coordinates of the right edge (XR) are measured.

[0031] Calculate the real-time center position: Pc = (XL + XR) / 2.

[0032] Calculate the lateral offset: ΔP = Pc - P.

[0033] Correction decision: When |ΔP|>ΔPth (e.g., 0.3mm) and this condition is met for N consecutive sampling periods (e.g., N=5), it is determined that correction needs to be performed.

[0034] PID position controller output: The PID position controller in the control unit takes ΔP as input and outputs the target feed amount S.

[0035] Pulse conversion: With a lead of 330mm and a servo motor encoder resolution of R, and an electronic gear ratio of 1:1, the pulse equivalent δ = Ls / R, and the required number of pulses Nm = S / δ.

[0036] Closed-loop iteration: The laser measurement unit continuously feeds back ΔP until |ΔP| recovers to within the allowable error range. Example 2

[0037] Please see Figures 4-8As shown, the present invention provides a roll material conveying device with laser measurement and correction mechanism for intelligent heat treatment production, which is used to convey the strip material to the winding station and perform real-time correction after the heat treatment process. It includes a winding machine 100 and a conveyor belt group 200, and also includes several laser measurement units 210, which are symmetrically arranged on the side of the conveyor belt group 200, for collecting edge position information of both sides of the strip material in real time in a non-contact manner. The belt alignment actuator is located on the conveyor belt assembly 200 and upstream of the winding machine 100, and is used to adjust the lateral position of the belt during the conveying process. The control unit is electrically connected to the laser measurement unit 210 and the correction actuator, respectively, and is configured as follows: Receive edge position information and calculate the lateral offset ΔP and offset direction of the strip; When ΔP meets the preset correction conditions, a correction command is generated to drive the correction actuator to restore the lateral position of the strip to the reference position.

[0038] Specifically, the correction mechanism is a guide wheel mechanism 400, which includes several rows of deflecting wheels 410 connected in series. The deflecting wheels 410 are arranged along the conveying direction and embedded in the central isolation space of the conveyor belt group 200. The highest point of the wheel rim of the deflecting wheel 410 is higher than the preset height of the conveying surface, so that it can contact the bottom surface of the belt during rotation and guide the conveying. The deflection drive assembly is connected to each set of deflection wheels 410 through gear meshing and transmission. It is used to drive the deflection wheels 410 to deviate from the conveying direction and form a deflection angle α. Then the bottom surface of the strip is displaced with the deflection wheel 410 and forms an angle α with the conveying direction.

[0039] The control unit converts the lateral offset ΔP into the deflection angle α in the following manner: Let the length of the effective working section of the deflector wheel 410 be L, the conveying speed of the strip be V, and the time it takes for a point on the strip to pass through the effective working section be t = L / V; When the deflection angle of the deflector wheel 410 is α, the transverse velocity component Vx on the strip is V×tan(α); the transverse displacement completed by the strip in time t is Vx×t; Let the lateral displacement be equal to the offset to be corrected, |ΔP|, that is, V×tan(α)×(L / V)=|ΔP|, so tan(α)=|ΔP| / L; The control unit calculates the deflection angle α based on this, and introduces the slip correction coefficient k according to the actual working conditions to obtain the actual control deflection angle α = arctan(|ΔP| / (k×L)); The control unit drives the deflection wheel 410 to deflect to the actual controlled deflection angle α, wherein when ΔP indicates that the strip deflects in the first direction, the deflection wheel 410 deflects in the opposite direction.

[0040] Furthermore, in order to install the guide wheel mechanism 400, a fixed belt group 220 is provided in the middle conveying area of ​​the conveyor belt group 200. Several rows of rotating frames 420 are fixedly installed inside the fixed belt group 220 and connected coaxially. By splitting the conveyor belt of the conveyor belt group 200 in the middle, the fixed belt group 220 consists of a fixed belt and a bearing. The bearing is sleeved on the rotating shaft of the conveyor belt group 200, and the fixed belt is fixedly sleeved outside the bearing and does not move with the conveyor belt group 200. The deflecting wheel 410 is engaged with the rotating frame 420 through the central shaft and rotates horizontally. The central shaft of the deflecting wheel 410 is sleeved with a rotating frame 430 for driving the deflecting wheel 410 to deflect.

[0041] Furthermore, the deflection drive assembly includes a second servo motor 440 and a gear transmission pair. The output shaft of the second servo motor 440 is connected to the rotating frame 430 via the gear transmission pair. For example, a worm gear is installed at the bottom of the rotating frame 430, and the second servo motor 440 is coaxially connected to several worms, which mesh with several worm gears to provide rotational torque.

[0042] Let the reduction ratio of the gear transmission pair be i, and the angle that the second servo motor 440 rotates for each pulse received be θ. Then the number of pulses N output by the control unit according to the actual control deflection angle α is: N = α / (θ × i).

[0043] Furthermore, the rim surface of the deflector 410 is coated with a layer of elastic material with a high coefficient of friction to increase the friction between the deflector 410 and the bottom surface of the strip.

[0044] Furthermore, the winding machine 100 includes an upper clamping roller 110 located above and a pair of lower clamping rollers 120 located below; the upper clamping roller 110 has a large diameter in the middle and small diameter at both ends, and the lower clamping rollers 120 have a small diameter in the middle and large diameter at both ends, which are used to control and realize the automatic centering and winding of the rolled material.

[0045] The present invention provides a method for conveying rolled materials with a laser measurement and correction mechanism for intelligent heat treatment production, using the aforementioned rolled material conveying device with a laser measurement and correction mechanism for intelligent heat treatment production, comprising the following steps: S1. After the heat treatment process, the strip is conveyed to the winding machine 100 via the conveyor belt group 200; S2. During the conveying process, a pair of laser measuring units 210 located away from the winding machine 100 are used to collect the edge position information of the strip in real time without contact. S3. The control unit receives edge position information and calculates the lateral offset ΔP. S4. When ΔP continues to exceed the threshold, or when each deflection wheel 410 in the drive guide wheel mechanism 400 deviates from the conveying direction and forms a reverse deflection angle α with the deflection direction of the strip, the strip is guided to generate a lateral component when the deflection wheel 410 rotates, and the strip is guided to complete the lateral displacement correction while being conveyed forward. S5. Repeat S2 to S4 to form a closed loop until the strip enters the winding machine 100 to complete the winding.

[0046] Working principle of guide wheel mechanism 400 and deflection angle α-ΔP mapping algorithm: When the strip is being conveyed normally without deviation, the deflection angle α of the deflector wheel 410 is 0°, and its rotational linear velocity direction is consistent with the conveying direction, serving only as an auxiliary conveyor.

[0047] When the laser measurement unit 210 detects that the strip has deviated to the left (ΔP>0, requiring correction to the right), the control unit calculates the deflection angle α according to the following steps: Assume the effective working section length of the deflector 410 is L=1.5m, the conveying speed of the strip is V=2m / s, and the transit time is t=L / V=0.75s.

[0048] The lateral displacement to be corrected is |ΔP|.

[0049] The lateral velocity component generated by the deflection angle α is Vx = V × tan(α), and the lateral displacement completed in time t is Vx × t = V × tan(α) × (L / V) = tan(α) × L.

[0050] Let tan(α)×L=|ΔP|, then we get tan(α)=|ΔP| / L.

[0051] Introducing a slip correction coefficient k (0.9 in this embodiment), the actual control deflection angle α = arctan(|ΔP| / (k×L)).

[0052] For example, |ΔP|=0.5mm=0.0005m, α≈arctan(0.0005 / (0.9×1.5))≈0.021°.

[0053] The control unit converts this deflection angle into the number of deflection servo motor pulses: the reduction ratio i=2, the motor step angle θ=0.018° / pulse, then N=0.021° / (0.018°×2)≈0.58, rounded to 1 pulse.

[0054] When ΔP indicates that the strip is shifted to the left, the drive deflection wheel 410 deflects to the right (clockwise) and vice versa (counterclockwise).

[0055] When the deflector wheel 410 is deflected, its rotation generates a linear velocity direction that forms an angle α with the conveying direction, causing the strip to be guided to move laterally to the right, thus achieving deviation correction. When ΔP returns to the allowable range, the deflection servo motor returns the deflection angle of the deflector wheel 410 to zero.

[0056] Multi-point coordination: Three sets of deflecting wheels 410 are arranged at 0.2-meter intervals along the conveying direction. The control unit can apply differentiated deflection angles according to the specific deviation of the strip in each segment, forming a gradual correction to ensure that the strip smoothly and without twisting returns to the center line. It is especially suitable for special alloy strips with low tensile strength and sensitive surfaces.

[0057] It should be noted that the terms "fixed connection" and "fixed installation" in this invention should be interpreted broadly, and can be achieved using conventional fixing methods such as bolt connection, welding, bonding, or integral molding that are compatible with each other. The specific connection relationship between the components is based on the ability to achieve the function of this invention. The above are existing technologies and will not be elaborated further here. The above embodiments are only for illustrating the technical concept and features of this invention, and their purpose is to enable those skilled in the art to understand the content of this invention and implement it accordingly. They should not be used to limit the scope of protection of this invention. All equivalent changes or modifications made according to the spirit and essence of this invention should be covered within the scope of protection of this invention.

Claims

1. A roll material conveying device with laser measurement and correction mechanism for intelligent heat treatment production, used to convey strip material to the winding station after the heat treatment process and perform real-time correction, including a winding machine and a conveyor belt assembly, characterized in that: It also includes several laser measurement units, symmetrically arranged on the side of the conveyor belt group, for real-time acquisition of edge position information on both sides of the belt in a non-contact manner; A correction mechanism is installed on the conveyor belt assembly and located upstream of the winding machine, and is used to adjust the lateral position of the belt during the conveying process; The control unit is electrically connected to both the laser measurement unit and the correction actuator, and is configured as follows: Receive the edge position information and calculate the lateral offset ΔP and offset direction of the strip; When ΔP meets the preset correction conditions, a correction command is generated to drive the correction actuator to restore the lateral position of the strip to the reference position.

2. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 1, characterized in that: The correction mechanism is a side guide mechanism, including at least one pair of side guide rods, which are symmetrically arranged on both sides of the width direction of the conveyor belt group, and the distance L between the installation position of the side guide rod and the inlet end of the winding machine satisfies: L≥3×W, where W is the maximum width of the belt material; A plurality of first servo motors are connected to a plurality of the side guide rods for transmission, and are used to independently drive the side guide rods to move in the lateral direction perpendicular to the conveying direction; The control unit is equipped with a PID position controller, which takes the lateral offset ΔP as input and outputs the target feed amount S. The control unit converts S into the first number of pulses required by the first servo motor, and drives the side guide rod with a positive offset to move a preset displacement.

3. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 2, characterized in that: The bottom sidewall of the side guide rod is provided with guide blocks and pressure rollers spaced apart from bottom to top, which are used to guide the strip to be lifted and the strip to be clamped and adjusted for lateral displacement under the drive of the first servo motor.

4. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 1, characterized in that: The correction mechanism is a guide wheel mechanism, which includes several rows of deflecting wheels connected in series. The deflecting wheels are arranged along the conveying direction and embedded in the middle isolation space of the conveyor belt group. The highest point of the wheel rim of the deflecting wheel is higher than the preset height of the conveying surface, so that it can contact the bottom surface of the belt material and guide the conveying when it rotates. The deflection drive assembly is connected to each set of deflection wheels through gear meshing and transmission. It is used to drive the deflection wheels to deviate from the conveying direction and form a deflection angle α. Then the bottom surface of the strip is displaced with the deflection wheel and forms an angle α with the conveying direction.

5. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 4, characterized in that: The control unit converts the lateral offset ΔP into a deflection angle α in the following manner: Let the length of the effective working section of the deflector be L, the conveying speed of the strip be V, and the time it takes for a point on the strip to pass through the effective working section be t = L / V; When the deflection angle of the deflector wheel is α, the lateral velocity component Vx on the strip is V×tan(α); the lateral displacement completed by the strip in time t is Vx×t; Let the lateral displacement be equal to the offset to be corrected, |ΔP|, that is, V×tan(α)×(L / V)=|ΔP|, so tan(α)=|ΔP| / L; The control unit calculates the deflection angle α accordingly, and introduces a slip correction coefficient k based on the actual operating conditions to obtain the actual control deflection angle α = arctan(|ΔP| / (k×L)); The control unit drives the deflection wheel to deflect to the actual controlled deflection angle α, wherein when ΔP indicates that the strip deflects in the first direction, the deflection wheel deflects in the opposite direction.

6. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 5, characterized in that: The conveyor belt group has a fixed belt group in the middle conveying area. Several rows of rotating frames are fixedly installed inside the fixed belt group and are coaxially connected. The deflecting wheel is connected to the rotating frame through the central shaft and rotates horizontally. The central shaft of the deflecting wheel is fitted with a rotating frame for driving the deflecting wheel to deflect.

7. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 6, characterized in that: The deflection drive assembly includes a second servo motor and a gear transmission pair, and the output shaft of the second servo motor is connected to the rotating frame through the gear transmission pair. Let the reduction ratio of the gear transmission pair be i, and the angle that the second servo motor rotates for each pulse received be θ. Then the number of pulses N output by the control unit according to the actual control deflection angle α is: N = α / (θ × i).

8. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 7, characterized in that: The rim surface of the deflector wheel is covered with a layer of elastic material with a high coefficient of friction to increase the friction between the deflector wheel and the bottom surface of the strip.

9. The intelligent heat treatment production roll material conveying device with laser measurement and correction mechanism according to claim 1, characterized in that: The winding machine includes an upper clamping roller located above and a pair of lower clamping rollers located below; the upper clamping roller has a large diameter in the middle and small diameter at both ends, and the lower clamping roller has a small diameter in the middle and large diameter at both ends, which is used to control and realize the automatic centering and winding of the rolled material.

10. A method for conveying rolled materials with a laser measurement and correction mechanism for intelligent heat treatment production, using the rolled material conveying device with a laser measurement and correction mechanism for intelligent heat treatment production as described in claim 9, characterized in that... Includes the following steps: S1. After the heat treatment process, the strip is conveyed to the winding machine via a conveyor belt assembly; S2. During the conveying process, a pair of laser measuring units located away from the winding machine are used to collect the edge position information of the strip in real time without contact. S3. The control unit receives the edge position information and calculates the lateral offset ΔP. S4. When ΔP continues to exceed the threshold, or when the drive side guide mechanism moves in the lateral direction, apply a lateral thrust to the side of the strip where ΔP is positive to correct the lateral position. S5. When ΔP continues to exceed the threshold, or when each deflection wheel in the drive guide wheel mechanism deviates from the conveying direction and forms a reverse deflection angle α with the deflection direction of the strip, the strip is guided to generate a lateral component when the deflection wheel rotates, and the strip is guided to complete the lateral displacement correction while being conveyed forward. S6. Repeat S2 to S5 to form a closed loop until the strip enters the winding machine to complete winding.

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