An on-line monitoring and identification system for the rhomboid deformation of continuous casting billets

Abstract

The present invention discloses an on-line monitoring and marking system for the rhomboid change of continuous casting billets, which includes a conveying unit. One end of the conveying unit is connected to the outlet of the straightening machine, and the other end is connected to the inlet of the flame cutting machine. A detection unit and a coding unit are arranged above the conveying unit at the end near the outlet of the straightening machine. The area where the detection unit and the coding unit are located is the detection area for the rhomboid change of continuous casting billets. The detection unit includes two digital cameras, and the lenses of the digital cameras are vertically downward. The two digital cameras are arranged oppositely and distributed on both sides of the conveying unit. The digital cameras are connected to the controller through data lines. The coding unit includes a coder, and the coder is connected to the controller through a data line. This system can judge the billets with rhomboid change timely, accurately and efficiently, and automatically mark the identified billets with rhomboid change.

Description

Technical Field

[0001] The invention belongs to the technical field of online monitoring of the shape quality of continuous casting billets, in particular to a system capable of online detecting the diamond variation of continuous casting billets and automatically marking billets with sections exceeding the standard. Background Art

[0002] Diamond deformation (also known as de-squareness) is a common shape defect in continuous casting billets, which affects product quality. Diamond deformation billets must be discovered in a timely manner during production.

[0003] Currently, the detection of diamond deformation in continuous casting billets mainly relies on manual measurement of the billets. Due to the harsh environment of the continuous casting workshop and the fact that only local measurements can be made on the billet end faces, most of the time, during production, only manual observation is required to determine whether the end faces of a billet have diamond deformation or not and to estimate the degree of diamond deformation. However, it is impossible to track each billet, resulting in low efficiency and poor accuracy. Summary of the Invention

[0004] In order to address the deficiencies in the prior art, this application has designed an online monitoring and identification system for diamond deformation in continuous casting square billets, which can timely, accurately and efficiently judge diamond-deformed billets and automatically identify the identified diamond-deformed billets. It can overcome harsh environments and solve problems such as low efficiency and poor accuracy of manual diamond deformation identification.

[0005] The technical solutions adopted in the present invention are as follows:

[0006] An online monitoring and identification system for continuous casting billet diamond deformation includes a conveying unit, one end of which is connected to the outlet of a straightening machine and the other end is connected to the inlet of a flame cutting machine; a detection unit and a coding unit are arranged above the end of the conveying unit near the outlet of the straightening machine, and the area where the detection unit and the coding unit are located is a continuous casting billet diamond deformation detection area;

[0007] The detection unit includes two digital cameras, the lenses of which are vertically downward; the two digital cameras are arranged opposite to each other and distributed on both sides of the conveying unit, and the digital cameras are connected to the controller via a data cable;

[0008] The coding unit includes a coding device, and the coding device is connected to the controller via a data line.

[0009] Furthermore, the conveying unit is a roller, and a plurality of rollers form a billet conveyor belt.

[0010] Furthermore, two digital cameras are arranged opposite to each other and distributed on both sides of the conveying unit, and the lenses of the digital cameras are arranged vertically downward.

[0011] Furthermore, the inkjet printer and the two digital cameras are staggered.

[0012] Furthermore, a coder support frame is fixedly arranged on the mounting seat of the conveying unit, and the coder is fixedly installed on the coder support frame.

[0013] Advantages of the present invention:

[0014] The online monitoring and identification system for the rhombus change of continuous casting billets designed in this application collects data of the billets to be measured in the rhombus change detection area of the continuous casting billets, calculates the rhombus variable of the billets through a built-in simple algorithm, and performs the coding work according to the rhombus variable of the billets, so as to realize the timely, accurate and efficient judgment of the rhombus-changed cast billets; and automatically identifies the identified rhombus-changed cast billets, which can overcome the harsh environment and solve the problems of low efficiency and poor accuracy of manual rhombus identification. Description of the drawings

[0015] Figure 1 is a schematic diagram of the online monitoring and identification system for the rhombus change of continuous casting billets in this application;

[0016] Figure 2 is a schematic diagram of the width;

[0017] Figure 3 is a schematic diagram of the rhombus variable calculation;

[0018] In the figure, 1, digital camera; 2, controller; 3, coder; 4, billet to be measured; 5, roller; 6, coder support frame. Specific embodiments

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] An online monitoring and identification system for the rhombus change of continuous casting billets designed in this application is as Figure 1 shown, which includes a conveying unit, and a detection unit and a coding unit are arranged above the conveying unit. The conveying unit selects rollers 5, and a billet conveyor belt is composed of multiple rollers 5; one end of the conveying unit is connected to the outlet of the straightening machine, and the other end is connected to the inlet of the flame cutting machine; the detection unit and the coding unit are arranged at the end of the conveying unit near the outlet of the straightening machine, and this area is the rhombus change detection area of the continuous casting billets; the billet to be measured 4 enters the rhombus change detection area of the continuous casting billets after being output from the straightening machine, and the detected billets are sent into the flame cutting machine for the next step of processing.

[0021] The detection unit includes two digital cameras. The two digital cameras 1 are arranged above the conveying unit. The lenses of the digital cameras 1 face vertically downward and are used to collect images of the billet 4 to be measured directly below the digital cameras 1. The distance between the digital camera 1 and the billet 4 to be measured directly below the digital camera 1 is adjusted according to the actual working environment. The two digital cameras 1 are respectively arranged on both sides of the conveying unit, that is, the connection line between the two digital cameras 1 is perpendicular to the moving direction of the billet 4 to be measured; the distance between the two digital cameras 1 is greater than the width of the billet 4 to be measured. The digital cameras are connected to the controller 2 through data lines. The digital camera 1 performs infrared optical photography on the billet 4 to be measured. The controller 2 reads the pixels of the digital camera 1 at a specified frequency, identifies the hot-cast billet image through a color difference processing program, and converts the graphic file into a data file for storage to obtain the on-line continuous width data of the billet such as Figure 2 , and the on-line continuous rhombus variable of the billet can be calculated through relevant formulas according to the on-line continuous width data such as Figure 3 . To more clearly illustrate the working principle of the system, in this embodiment, a method for calculating the rhombus variable of the billet is given. The side length a of the billet is known. According to the analysis of the connection control software of the digital camera, the width b can be obtained. It is analyzed that cos2α = (b - a) / a, and the angles α and β can be known. According to the angles α and β, the difference between c and d can be obtained, and then the rhombus variable of the billet can be obtained; this method for calculating the rhombus variable of the billet is a conventional calculation method in the art. A billet rhombus variable threshold is preset in the controller 2. When the billet rhombus variable calculated by the controller 2 according to the data collected by the detection unit reaches or exceeds this threshold, the inkjet coding work is executed.

[0022] The inkjet coding unit includes an inkjet printer 3. The inkjet printer 3 is arranged between the two digital cameras. The inkjet printer 3 is connected to the controller 2 through a data line and is used to receive the inkjet coding instruction issued by the controller 2 and execute this inkjet coding instruction to perform on-line marking on the billet with excessive rhombus deformation.

[0023] The detection unit and the inkjet coding unit are arranged above the conveying unit near the outlet of the tension straightener, and an inkjet printer support frame 6 is fixedly arranged on the mounting seat of the conveying unit, and the inkjet printer 3 is fixedly installed on the inkjet printer support frame 6.

[0024] The above embodiments are only used to illustrate the design concept and characteristics of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.

Claims

1. An on-line monitoring and marking system for the rhombic transformation of continuous casting billets, characterized in that, It includes a conveying unit, one end of which is connected to the outlet of the straightening machine and the other end is connected to the inlet of the flame cutting machine; a detection unit and a coding unit are arranged above the end of the conveying unit near the outlet of the straightening machine, and the area where the detection unit and the coding unit are located is the diamond deformation detection area of the continuous casting billet; The detection unit comprises two digital cameras (1), the lenses of the digital cameras (1) are vertically downward; the two digital cameras (1) are arranged opposite to each other and distributed on both sides of the conveying unit, and the connection line between the two digital cameras (1) is perpendicular to the movement direction of the billet 4 to be measured; the distance between the two digital cameras (1) is greater than the width of the billet (4) to be measured; the digital cameras are connected to the controller (2) via a data line; the digital cameras (1) perform infrared optical photography on the billet (4) to be measured, the controller (2) reads the pixels of the digital cameras (1) at a specified frequency, recognizes the hot billet image through a color difference processing program, and converts the graphic file into a data file for storage, thereby obtaining the online continuous width data of the billet, and calculating the online continuous rhombus variable of the billet based on the online continuous width data; According to the analysis of the digital camera connection control software, the width of the billet is b, the side length of the billet is a, and according to cos2α=(ba) / a, the angles α and β formed by the two diagonals of the billet and the side are obtained. Based on the angles α and β, the difference between the diagonals c and d of the billet is calculated, and the billet rhombus variable is obtained. The coding unit includes a coding device (3), the coding device (3) is connected to the controller (2) via a data line, and the coding device (3) and the two digital cameras are staggered.

2. The on-line monitoring and marking system for the rhombus change of continuous casting billets according to claim 1, characterized in that, The conveying unit is a roller (5), and a plurality of rollers (5) form a billet conveyor belt.

3. The on-line monitoring and identification system for the rhombus transformation of continuous casting billets according to claim 1, characterized in that, A coder support frame (6) is fixedly arranged on the mounting seat of the conveying unit, and the coder (3) is fixedly mounted on the coder support frame (6).

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