Flying shear control method

A flying shear control and speed technology, applied in the field of flying shear control, can solve the problems that it is difficult to find the fault point and eliminate the fault, and the maintenance personnel cannot understand the control principle, etc., and achieve the effect of improving the cutting precision and high cutting precision

Active Publication Date: 2016-03-09
DALIAN HUAYELIAN AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, T400 completely adopts parameterized programming, so that maintenance personnel cannot understand the control principle. Once a fault occurs, it is difficult to find the fault point and eliminate the fault.

Method used

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

[0030] See figure 1 , the method of flying shear control, the total speed of rolling during continuous shearing satisfies: V=V b +V C (1);

[0031] In formula (1): V is the total speed of the drum; V b is the shear point velocity; V c is the additional velocity;

[0032] V b =V m (1+V m %)(2);

[0033] In formula (2): V m is the strip speed, V m % is the percentage of cutting blade advance speed;

[0034] V m The value of % is 4.8%-5.2%;

[0035] V c =V m ×K(3)

[0036] In formula (3): K is the additional speed coefficient;

[0037] The cutting edge angle α (0° to 360° cycle) is the code number actually collected by the encoder divided by 1024 to take the remainder, then divided by 1024 and multiplied by 360, which satisfies form...

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Abstract

The invention relates to a flying shear control method. When shearing is conducted continuously, the overall speed of rolling meets the equation that V=Vb+VC, wherein Vb=Vm*(1+Vm%), and Vc=Vm*K; the shear blade angle is alpha, when a shear blade is at the lowest point, the alpha is 0 degree, the addition speed coefficient K and the alpha meet equations that when alpha is greater than 340 degrees and smaller than or equal to 360 degrees, and alpha is greater than 0 degree and smaller than or equal to 20 degrees, K is equal to 0; when alpha is greater than 20 degrees and smaller than or equal to 160 degrees: K= , when alpha is greater than 160 degrees and smaller than or equal to 200 degrees: K= , when alpha is greater than 200 degrees and smaller than or equal to 340 degrees: K= , wherein R is the diameter of a roller, and L is the shearing length. The flying shear control method has the advantages that the shearing precision of band steel is improved, the shearing angle and torque are calculated precisely, accordingly, the shearing precision can be controlled, model calculating is completed, and the stability of shearing control is improved. The shearing angle is divided according to intervals, so that the addition speed coefficient K is evaluated precisely, and accordingly the shearing precision is improved.

Description

technical field [0001] The invention relates to a method for controlling flying shears, in particular to a method for controlling flying shears used at the outlet of a cold-rolled sheet galvanizing line. Background technique [0002] In the past, most of the flying shears were controlled by the T400 process board. The T400 process board is a high-performance control board based on the 32-bit SIMADYN-D processor. The frame and the communication module can realize the communication with the transmission device conveniently. [0003] In terms of hardware, T400 needs to introduce a separate control system, which is installed in the slot of the transmission equipment and communicates with the main line for data exchange, adding hardware diversity to the already complex rolling line. In terms of software, T400 needs to communicate with the main line to collect data and receive commands, which increases the points of failure. The man-machine interface needs to rely on the main li...

Claims

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Application Information

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IPC IPC(8): B23D36/00
CPCB23D36/00
Inventor 苑辉翟景峰任思照周明冯明峰刘放
Owner DALIAN HUAYELIAN AUTOMATION
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