Cold rolling continuous annealing unit tension control method and system
A tension control and tension technology, applied in the control/adjustment system, mechanical pressure/force control, non-electric variable control, etc., can solve the problems of nonlinear influence of tension, mutual influence of tension fluctuations, etc.
Active Publication Date: 2016-03-16
WISDRI WUHAN AUTOMATION
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[0011] Considering that there are many reasons for the tension fluctuation, such as the slippage of the tension roller, the change of the friction damping of the conveying roller, the change of the catenary curve of the strip steel, the influence of the deviation correction device, the change of the internal force of the strip steel at different temperatures, etc. will appear at times, their influence on tension is nonlinear, and it is difficult to establish a mathematical model to solve the problem of mutual influence of tension fluctuations between multiple connected tension segments
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[0055] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the invention.
[0056] Such as figure 1 , 2 As shown, the present invention provides a kind of tension control method of cold rolling continuous annealing unit, comprises the following steps:
[0057] S1: Collect the tension setting value and tension feedback value at time s on each tension control section i and calculate the tension deviation ΔT at time s on each tension control section i respectively i ;
[0058] S2: The tension deviation ΔT at time s on each tension control section i i Send them to the controller 1 and the tension regulator respectively, and the tension regulator will send the ...
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The invention discloses a cold rolling continuous annealing unit tension control method comprising the following steps that S1: tension deviation deltaTi of each tension control segment i at time of s is calculated; S2 the tension deviation deltaTi of each tension control segment i at the time of s is transmitted to a controller and a tension regulator respectively, and actual addition speed of the tension control segment i at the time of s is transmitted to the controller; S3: addition speed required to be outputted of each tension control segment i at time of s+1 is calculated; S4: speed correction is performed on the tension control segment i according to addition speed Vi(s) and Vi(s+1); and S5: unified regulation is performed on the strip tension of multiple tension control segments i according to the corrected addition speed, and the steps S3-S5 are repeated until the tension deviation deltaTi tends to 0. According to the cold rolling continuous annealing unit tension control method, the overall tension deviation of a cold rolling continuous annealing unit is reduced so that mutual influence between the tension segments can be reduced and tension stability of the cold rolling continuous annealing unit can be enhanced.
Description
technical field [0001] The invention relates to the technical field of metallurgy automation, in particular to a tension control method and system for a cold rolling continuous annealing unit. Background technique [0002] The cold rolling continuous annealing unit generally consists of three sections: the entrance section, the process section and the exit section. [0003] The entrance section is mainly composed of steel coil trolley, uncoiler, pinch roller, slitting shear, welding machine, tension roller and looper and other equipment. The process section is mainly composed of cleaning, continuous annealing, cooling, re-cleaning, coating process, drying treatment and other process equipment and tension rollers. The export section is composed of looper, tension leveler, tempering machine, slitting shear, coiler and coil unloading trolley and other equipment. [0004] In the entrance section, the cold-rolled steel coil is sent to the uncoiler by the steel coil trolley, and...
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Login to View More IPC IPC(8): G05D15/01C21D11/00
Inventor 王利国王胜勇卢家斌
Owner WISDRI WUHAN AUTOMATION