A control method and control device for the preset opening degree of the guide plate at the side of the coiling entrance
A control method and technology of opening degree, applied in rolling mill control devices, guiding/positioning/aligning devices, manufacturing tools, etc., can solve the problems of poor accuracy, damage to the edge of the plate, and uneven coiling, etc. Solve the effect of uneven coiling or damage to the edge of the plate, and improve flexibility and accuracy
Active Publication Date: 2022-01-14
BEIJING SHOUGANG CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention provides a control method and control device for the preset opening degree of the guide plate at the coiling entrance side, to solve or partially solve the inflexible control of the preset opening degree of the existing guide plate at the coiling entrance side, poor accuracy, and easy Technical problems that lead to uneven coiling or damage to the beading of the board
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0048] In the hot-rolled strip production line, a width measuring instrument is installed on the exit side of the last stand of the finishing mill, and the width measuring instrument can measure the centerline deviation and width of the hot-rolled strip in real time. After leaving the rolling mill, the hot-rolled coil passes through the laminar cooling section, then enters the guide plate at the coiling entrance side, and then arrives at the coiler for coiling. Such as figure 1 shown. The inventors have found that since the head is an unstable section during the hot rolling of the strip, the offset of the centerline of the head of the strip near the centerline of the rolling line is ver...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for controlling the preset opening degree of the guide plate on the side of the coiling inlet, which includes: following the sequence of passing through the hot-rolled finish rolling mill, sequentially at the head section of the hot-rolled strip with a preset length L Obtain the position data of n sampling points, the position data includes the length data {L i}, centerline data {C i} and width data {W i}; According to the position data, determine the upper edge data {Y of the n sampling points of the hot-rolled strip ui} and lower edge data {Y li}; Respectively for the upper edge data {Y ui} and lower edge data {Y li} Perform polynomial fitting regression to obtain the corresponding polynomial regression function Y u and Y l ;Determine Y respectively on the definition domain [0,L] u and Y l The maximum value of the upper edge MX and the minimum value of the lower edge MN; according to MX, MN and the compensation amount Offset, determine the preset opening degree of the guide plate at the coiling entrance side. Through the above-mentioned method, the problem of irregular coiling of hot-rolled coils or damage to the edge of the plate is effectively solved.
Description
technical field [0001] The present application relates to the technical field of hot rolling production of plates and strips, and in particular to a control method and a control device for a preset opening degree of a guide plate at a coiling entrance side. Background technique [0002] The coiler inlet side guide is located after the laminar cooling device of the hot rolling line and before the pinch rolls of the coiler, above the output roller table. The function of the guide plate at the coiling entrance side is to align the strip with the center line of rolling and send it to the pinch roller, and to clamp the strip to the center when the strip enters the coiler to avoid the centering of the hot rolled strip. Defective coils and towers are caused. In this process, the opening of the guide plate on the inlet side of the coiler needs to be flexibly adjusted according to the rolled plate and strip. If the opening of the guide plate on the side of the coiling entrance is s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B21B39/16B21B37/68
CPCB21B39/16B21B37/68
Inventor 任存杰南宁武振威陶永强王学强李健民王伦李春元
Owner BEIJING SHOUGANG CO LTD