阅读说明：本技术 一种轧钢生产用测重装置、输送装置及方法 (Weight measuring device, conveying device and method for steel rolling production ) 是由 *** 于�玲 赵栋 郭泓娇 于 2019-09-25 设计创作，主要内容包括：本发明涉及一种轧钢生产用测重装置、输送装置及方法,包括长度测量装置、轮廓扫描仪和控制系统；所述轮廓扫描仪设置在辊道输送线中部,所述轮廓扫描仪能够允许待测件通过并扫描待测件的断面形状；所述长度测量装置包括设置在辊道输送线一侧的金属检测器,所述金属检测器能够检测到待测件是否到达金属检测器的检测位置；所述长度测量装置还包括与驱动电机的输出轴同轴设置的码盘,所述码盘能够检测驱动电机输出轴转动的角度。本发明够避免设置与待测件等长的输送辊道及测重元件,减少待测件在辊道上停留的时间,避免对轧制质量的影响,能够实现长度数值较大的待测件重量测量。(The invention relates to a weight measuring device, a conveying device and a method for steel rolling production, which comprise a length measuring device, a profile scanner and a control system; the profile scanner is arranged in the middle of the roller way conveying line and can allow the piece to be detected to pass through and scan the section shape of the piece to be detected; the length measuring device comprises a metal detector arranged on one side of the roller way conveying line, and the metal detector can detect whether the piece to be detected reaches the detection position of the metal detector; the length measuring device further comprises a coded disc which is coaxial with the output shaft of the driving motor, and the coded disc can detect the rotating angle of the output shaft of the driving motor. The invention can avoid setting a conveying roller way and a weight measuring element which are equal to the piece to be measured, reduce the stay time of the piece to be measured on the roller way, avoid the influence on the rolling quality and realize the weight measurement of the piece to be measured with larger length value.)

1. A weight measuring device for steel rolling production is characterized by comprising:

the profile scanner is arranged in the middle of the roller way conveying line and can allow the piece to be detected to pass through and scan the section shape of the piece to be detected;

the metal detector is arranged on one side of the roller way conveying line and can detect whether the piece to be detected reaches the detection position of the metal detector;

the coded disc is coaxially arranged with an output shaft of the driving motor and can detect the rotating angle of the output shaft of the driving motor;

the control device is respectively in signal connection with the profile scanner, the metal detector and the code disc, and can obtain the section area of the piece to be detected in a regular shape according to the section information of the profile scanner;

the control device can obtain the length value of the piece to be detected in a regular shape according to the rotation angle information of the coded disc and the signal time interval of the metal detector;

the control device can obtain the weight of the piece to be measured according to the section area and the length value of the piece to be measured in the regular shape and the preset density of the piece to be measured.

2. The device for measuring the weight in the steel rolling production according to claim 1, wherein the profile scanner is of an annular structure, the piece to be measured can pass through an annular inner cavity of the profile scanner, and a detection probe is arranged on an inner annular surface of the profile scanner.

3. The weight measuring device for steel rolling production according to claim 1, wherein the profile scanner is fixed to the mounting frame of the roller conveyor line by a connecting frame.

4. The apparatus of claim 1, wherein the profile scanner is provided at a lower portion thereof with a support frame supported by the ground.

5. The apparatus of claim 1, wherein the profile scanner has an internal passage communicating with a nozzle provided in an inner circumferential surface of the profile scanner, and the internal passage is supplied with air by an external air compressor.

6. The device of claim 1, wherein the metal detector is a photoelectric reflective sensor, and the photoelectric reflective sensor can determine whether the object to be measured reaches a position corresponding to the metal detector by whether a photoelectric signal is blocked.

7. A conveying device for steel rolling production, which utilizes the steel rolling generation weight measuring device as claimed in any one of claims 1 to 6, and is characterized by comprising a roller way conveying line, wherein the middle part of the roller way conveying line is provided with the profile scanner, one side of the roller way conveying line is provided with the metal detector, a driving roller and a driving motor in the roller way conveying line are coaxially arranged, and an output shaft of the driving motor is fixedly connected with a code disc.

8. A method for measuring the weight of a steel rolling production using the conveying apparatus for a steel rolling production of claim 7, comprising the steps of:

placing the piece to be detected in a regular shape on the upper part of the roller way conveying line, so that the piece to be detected is conveyed along the conveying direction of the roller way conveying line;

after the front end of the piece to be detected reaches the position of the metal detector, the coded disc starts to record angle information, when the rear end of the piece to be detected is far away from the position of the metal detector, the coded disc stops recording the angle information, and the angle information recorded by the coded disc of the control device and the radius of a driving roller in the roller way conveying line obtain the length numerical value of the piece to be detected;

when the front end of the piece to be detected reaches the position of the metal detector, the profile scanner scans to obtain the section information of the piece to be detected, and the control device obtains the section area of the piece to be detected according to the section information;

the control device obtains the weight of the piece to be measured according to the section area, the length value and the preset density value of the piece to be measured.

Technical Field

The invention belongs to the technical field of weight measuring devices, and particularly relates to a weight measuring device, a conveying device and a method for steel rolling production.

Background

In the production of steel rolling, the yield is always a key index for measuring and improving economic benefits of various production plants. However, due to the limitation of weighing, only the weight of the blank and the finished product is generally measured. The blank weighing generally selects a section of roller way which is adaptive to the length of the blank and is arranged in front of a heating furnace, and a weighing element is arranged at the roller way for weighing.

With the development of rod, wire and section steel production technologies, direct rolling and endless rolling have already been applied to practical production, increasing the yield of rolling lines and becoming the process adopted by each new-built production plant. Because the direct rolling eliminates a heating furnace for secondary heating on a production line, the conveying time of blanks or rolled pieces in the middle working procedure among all working procedures is as short as possible so as to ensure the temperature of the rolled pieces entering the rolling mill.

The inventor thinks that among rolling processes, especially in a continuous rolling production line, because the length value of a rolled piece is large, if a weighing element is required to be arranged, a conveying roller way with the same length as the piece to be measured must be arranged, so that the floor area of the production line is greatly increased, and independent weighing is difficult; the product can only be bound into a bundle and weighed after being completely rolled and formed.

Meanwhile, the mode of arranging the conveying roller way and the weighing element which are as long as the piece to be measured can prolong the time for the blank to enter the heating furnace, and the rolling quality is influenced.

Disclosure of Invention

The first purpose of the present invention is to overcome the above disadvantages of the prior art, and to provide a weight measuring device for steel rolling production, which can avoid the installation of a conveying roller way and a weight measuring element with the same length as a piece to be measured, reduce the time of the piece to be measured staying on the roller way, avoid the influence on the rolling quality, and can realize the weight measurement of the piece to be measured with a larger length value.

The invention also provides a method for measuring the weight of the blank, the rolled piece or the finished product in the steel rolling production process.

In order to achieve the purpose, the invention adopts the following technical scheme:

a weight measuring device for steel rolling production comprises a profile scanner arranged in the middle of a roller way conveying line, a metal detector arranged on one side of the roller way conveying line and a code wheel coaxially arranged with an output shaft in a driving motor.

The profile scanner can allow the piece to be detected to pass through and scan the section shape of the piece to be detected; the metal detector can detect whether the piece to be detected reaches the detection position of the metal detector; the coded disc can detect the rotating angle of the output shaft of the driving motor; and the control device is respectively in signal connection with the contour scanner, the metal detector and the code disc.

The control device can obtain the section area of the piece to be measured in a regular shape according to the section information of the profile scanner; the control device can obtain the length value of the piece to be detected in a regular shape according to the rotation angle information of the coded disc and the signal time interval of the metal detector; the control device can obtain the weight of the piece to be measured according to the section area and the length value of the piece to be measured in the regular shape and the preset density of the piece to be measured.

Further, the metal detector is a photoelectric reflection type sensor, and the photoelectric reflection type sensor can judge whether the to-be-detected piece reaches the position corresponding to the metal detector through whether a photoelectric signal is blocked.

The conveying device for steel rolling production utilizes the weight measuring device for steel rolling generation and comprises a roller way conveying line, wherein the middle part of the roller way conveying line is provided with the contour scanner, one side of the roller way conveying line is provided with the metal detector, a driving roller and a driving motor are coaxially arranged in the roller way conveying line, and an output shaft of the driving motor is fixedly connected with a code wheel.

A weight measuring method for steel rolling production utilizes a conveying device for steel rolling production, and comprises the following steps:

placing the piece to be detected in a regular shape on the upper part of the roller way conveying line, so that the piece to be detected is conveyed along the conveying direction of the roller way conveying line;

after the front end of the piece to be detected reaches the position of the metal detector, the coded disc starts to record angle information, when the rear end of the piece to be detected is far away from the position of the metal detector, the coded disc stops recording the angle information, and the angle information recorded by the coded disc of the control device and the radius of a driving roller in the roller way conveying line obtain the length numerical value of the piece to be detected;

when the front end of the piece to be detected reaches the position of the metal detector, the profile scanner scans to obtain the section information of the piece to be detected, and the control device obtains the section area of the piece to be detected according to the section information;

the control device obtains the weight of the piece to be measured according to the section area, the length value and the preset density value of the piece to be measured.

The invention has the beneficial effects that:

1) in the running process of the piece to be measured, the weight of the piece to be measured can be calculated by measuring the section area, the length and the preset density of the piece to be measured. The conveying roller way and the weighing element which are equal to the piece to be measured are not needed to be arranged, the length of the conveying roller way can be greatly reduced, the conveying time of the piece to be measured among all working procedures is shortened, equipment is reduced, and equipment investment and maintenance are reduced.

A contour scanner, a metal scanner and a code disc can be added among all the process devices at the positions needing to be measured, so that the weight measuring function can be realized, and the accurate management of each process can be realized.

2) The profile scanner with the annular structure is adopted, the piece to be detected can penetrate through an annular inner cavity of the profile scanner, and a detection probe is arranged on the inner annular surface of the profile scanner. The arrangement mode ensures that the profile scanner does not influence the advance of the piece to be measured, and meanwhile, the accurate scanning of the section of the piece to be measured can be realized.

3) The length of the piece to be measured can be measured by detecting the rotating angle of the output shaft of the driving motor and the radius value of the driving roller by adopting the mode that the coded disc and the output shaft of the driving motor are coaxially arranged.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic view of the overall structure in embodiment 2 of the present invention;

fig. 2 is a schematic structural diagram of a part of a profile scanner and the like in embodiment 2 of the present invention.

In the figure: 1. a drive roller; 2. a drive motor; 3. code disc; 4. a metal detector; 5. a profile scanner; 6. conveying the line by a roller way; 7. and (5) a piece to be tested.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of the stated features; a step of; operating; a device; components, and/or combinations thereof.

The scheme can utilize the current mature imaging technology (profile scanner), the length measuring technology and the computer secondary system to calculate the weight of the piece to be measured in each process, can simplify the time for the blank to enter a heating furnace or directly enter a rolling mill, reduce the temperature drop of the blank, save the equipment length and the equipment weight of a furnace entering area, solve the problem that the rolled piece cannot be weighed due to long length, and provide guarantee for the intelligent production of a rolling line and the accurate management of the rolling line.

The working principle of the profile scanner for scanning a section and the metal detector and the code disc is known in the art and will not be described in detail here, but should not be considered as being clear.

It should be noted that in the scheme, the weight measuring device for steel rolling production aims at rolled pieces or blanks in regular shapes, such as section steel, bar stock, cuboid materials and the like. Namely, the section of the to-be-measured piece obtained by the profile scanner has regular and unchangeable shape and size.