An automatic control device and method for the overflow edge of cold-rolled strip coil

An automatic control device and a technology for cold-rolled strip steel, applied in the field of cold-rolled production, can solve the problem of irregular overflow direction, etc., and achieve the effects of easy disassembly and maintenance, reduction of production cost, and high control precision.

Active Publication Date: 2022-06-21
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems in the prior art that there are many reasons for quality defects of the overflow edge in the coiling process of cold-rolled products, and the overflow direction is irregular, etc., the present invention provides an automatic control device and method for the overflow edge of cold-rolled strip coil, by increasing the A set of strip steel overflow edge automatic control device, the device includes a linear motor, a stopper and a detection device, through which the detection device detects the width of the strip steel and the displacement of the coiler in the automatic edge alignment device of the coiler, so as to automatically Calculate the moving distance of the linear motor; use the linear motor to drive the stopper to the working position to correct the position of the strip steel to ensure that the strip steel does not deviate from the center line of the coil, and realize curling without overflow, thereby effectively improving the production efficiency of thick gauge high-strength steel and the tail of the strip steel Excellent edge quality, lower production costs

Method used

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  • An automatic control device and method for the overflow edge of cold-rolled strip coil
  • An automatic control device and method for the overflow edge of cold-rolled strip coil

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Effect test

Embodiment 1

[0033] An automatic control device for the overflow edge of a cold rolled strip steel coil in this embodiment, such as figure 1 As shown, it includes a trimming shear 1, an automatic online width measuring instrument 2 is arranged downstream of the trimming shears 1, and the automatic online width measuring instrument 2 can automatically measure the strip steel conveyed by the trimming shears 1 upstream thereof. width, and feedback its value to the PLC controller 8; a tensioning mechanism 3 is provided downstream of the automatic online width measuring instrument 2, and the tensioning mechanism 3 includes a tensioning roller I31, which is wound with a tensioning roller I31. The strip steel is tensioned by the tensioning roller 131 and then passes through the vertically symmetrical vertical tensioning rollers 32 in turn. After the strip on the vertical tensioning roller 32 is manually measured, the value is input into the HMI. machine interface 9, the HMI man-machine interface ...

Embodiment 2

[0036] A method for automatic control of the curling overflow edge of a cold-rolled strip steel of the present embodiment, the basic structure is the same as that of the first embodiment, and the differences and improvements are as follows: figure 1 shown, including the following steps:

[0037] Step 1. Bandwidth measurement: The actual width of the strip steel measured by the automatic online width measuring instrument 2 is a unit millimeter; or the width of the strip steel on the vertical tension roller 32 is measured by manual width measurement, And input the measured value to the HMI man-machine interface 9, and the HMI man-machine interface 9 feeds back the signal to the PLC controller 8;

[0038] Step 2, coiling and shearing: the PLC controller 8 transmits the signal to the drum shear 42, and the drum shear 42 cuts the strip steel. At this time, the strip steel loses tension, and the strip steel is coiled by the coiler 63. , and the EPC automatic edge-aligning device 65...

Embodiment 3

[0041] A method for automatic control of the curling overflow edge of a cold-rolled strip of the present embodiment, the basic structure is the same as that of the second embodiment, and the differences and improvements are as follows: figure 1 As shown, in step 3, when producing the type of strip steel with the risk of overflow edge, the automatic control mechanism 7 for overflow edge is activated, and when the strip steel in the coiling area is 10 meters away from the position of the drum shear 42, the linearity calculated by the PLC controller 8 is calculated. The displacement of the motor 71, in which the displacement of the operation side is E1 unit millimeter, E1=C1-200; the displacement of the transmission side is E2 unit millimeter, E2=C2-200; The displacement of the operation side is E1 unit millimeter, E1=C1- f1, f1 are the correction values ​​of the overflow edge on the operation side, which can be modified on the HMI man-machine interface 9; the displacement of the ...

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Abstract

The invention discloses an automatic control device and method for the overflow edge of the coil of cold-rolled steel strip, which belongs to the technical field of cold-rolled production. An automatic control device and method for the overflow edge of cold-rolled strip coils according to the present invention includes a coiling mechanism, an automatic overflow edge control mechanism is arranged in the coiling area of ​​the coiling mechanism, and the overflow edge automatic control mechanism includes a linear motor , a stopper and a detection device; the crimping mechanism includes a coiler, and an EPC automatic edge alignment device is arranged below the coiler, so that the data that deviates from the center line of the production line generated when the strip is coiled is transmitted to the PLC controller, The PLC controller then feeds back the signal to the linear motor, and the linear motor controls the stopper to move to the working position to correct the position of the strip steel, so as to ensure that the strip steel does not deviate from the crimping center line, and realize curling without overflowing edges, thereby effectively improving the thick gauge and high strength. Improve the steel production efficiency and the edge quality of the tail end of the strip, and reduce the production cost.

Description

technical field [0001] The invention relates to the technical field of cold rolling production, and more particularly relates to an automatic control device and method for the overflow edge of a cold rolled strip. Background technique [0002] In iron and steel production enterprises, in order to facilitate storage, transportation and packaging, cold-rolled hot-dip galvanized products are coiled to form neat and tight coils. In the current cold-rolled post-treatment production line, the finished coils of cold-rolled strip steel after annealing and coating treatment are coiled through a coiler to the end of the product coil, especially in the production of thick gauges (1.5mm < thickness < 2.5mm) and high-strength steels. , There is no tension after the strip is cut in the exit area. Due to the slippage of the steel coil after oiling, the shape of the strip itself, and the influence of its own gravity, the pressure roller on the steering roller in front of the coiler ,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B15/00B21B37/00B21B39/14B21B38/04
CPCB21B15/00B21B15/0007B21B37/00B21B39/14B21B38/04B21B2015/0057
Inventor 许翔汪红兵张勇
Owner MAANSHAN IRON & STEEL CO LTD
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