A method for determining the coil diameter of an uncoiler or a coiler in a steel rolling process
A determination method and uncoiler technology, applied in metal processing, manufacturing tools, metal processing equipment, etc., can solve problems such as large fluctuations in coil diameter values and unusable coil diameters, and achieve high coil diameter accuracy, small fluctuations, and stability The effect of improving the performance and anti-interference ability
Inactive Publication Date: 2015-11-11
武钢集团有限公司 +1
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Problems solved by technology
In theory, the coil diameter obtained by this method is absolutely correct, but in practical applications, due to the delay and fluctuation of the measurement feedback data V and n, the value of the obtained coil diameter fluctuates greatly, especially when the steel coil processing unit When accelerating or decelerating, the resulting roll diameter is almost unusable
[0010] It can be seen that both methods have their own advantages, but there are also some insurmountable defects. In order to make the roll diameter not only meet the accuracy requirements, but also be stable and not fluctuate, a new calculation solution for the roll diameter is urgently needed
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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but these embodiments should not be construed as limiting the present invention.
[0030] figure 1 The existing steel coil processing unit has been described in the background technology, and will not be repeated here.
[0031] see figure 2 , the coil processing unit used in the method for determining the coil diameter of the uncoiler or coiler in the steel rolling process of the present invention comprises an uncoiler roller group encoder 1, a coiler roller group encoder 2, an uncoiler 3, a coil Take-up machine 4, uncoiler transmission device 5, coiler transmission device 6, secondary system 7, PLC8, uncoiler roller group 9, process section 10, coiler roller group 11 and HMI12 (HumanMachineInterface, man-machine interface) .
[0032] Take Wuhan Iron and Steel Cold Rolling Plant No. 1 Cold Rolling Branch Tinning Workshop 2# steel coil proces...
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The invention discloses a steel coil diameter determining method of an uncoiler or a coiler in a steel rolling technology. The method comprises the following steps that 1) the linear velocity V of strip steel of the uncoiler or the coiler, the rotating speed n of the uncoiler or the coiler, the initial coiling diameter Dini of a steel coil and the strip steel thickness h are obtained respectively; 2) a PLC is used for carrying out tracking processing on data, through an accumulation counting computing method, an added coiling diameter Dadd is obtained, a metering coiling diameter Dmeter is obtained through a direct speed computing method; 3) the added coiling diameter Dadd and the metering coiling diameter Dmeter are compared, each added value of the added coiling diameter Dadd is corrected in the PLC, an actual coiling diameter Dact is obtained; 4) the actual coiling diameter Dact is used as an added coiling diameter Dadd in the next cycle in the PLC, and the above operation is circulated. The method has the advantages of being high in accuracy, low in fluctuation and high in self-adjusting capacity, and the method can be widely used in the steel rolling technology.
Description
technical field [0001] The invention relates to a steel rolling process, in particular to a method for determining the steel coil diameter of an uncoiler or a coiler in the steel rolling process. Background technique [0002] In the metallurgical industry, hot-rolled steel coils and cold-rolled steel coils are important types of finished products in the entire steel industry. In the process of processing hot-rolled steel coils or cold-rolled steel coils, the role of uncoilers and coilers is irreplaceable. [0003] In the modern steel coil processing unit, the tension of the uncoiler and coiler and the working speed of the whole unit need to be in a controllable state at all times, so the torque and speed of the uncoiler and coiler must be grasped in time. [0004] figure 1 It is a typical structural diagram of a steel coil processing unit equipped with an uncoiler 3 and a coiler 4. It can be seen from the figure that when the unit is running, the steel coil is uncoiled by ...
Claims
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IPC IPC(8): B21C47/00B21C51/00
Inventor 李凯雷锐光赵媛刘辰明陈瑜
Owner 武钢集团有限公司