A tension control method for an uncoiler
A tension control and uncoiler technology, applied in the field of steel rolling, can solve problems such as core pulling and large torque
Active Publication Date: 2018-12-14
SHOUGANG JINGTANG IRON & STEEL CO LTD
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- Application Information
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Problems solved by technology
[0005] The invention provides a tension control method for an uncoiler to solve the core-pulling phenomenon caused by too much torque in the prior art
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[0030] 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.
[0031] The invention discloses a tension control method for an uncoiler. The method is mainly aimed at keeping the tension setting value of the existing uncoiler unchanged, and then causing the torque to change with the change of the outer diameter of the steel coil, and the uncoiler When the torque is too large, it will cause the problem of core pulling of the steel coil. Therefore, the main purpose of the present invention is to adjust the torque by adjusting the actual tension value of the uncoiler, so as to avoid the core-pulling phenomenon of the steel coil.
[0032] The implementation principle of the present invention is as follows: in the prior art, the actual tension value of th...
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The invention discloses a method for controlling tension of an uncoiler. First the external diameter of a current steel coil on the uncoiler is monitored in real time; based on the external diameter of the current steel coil, a current tension coefficient corresponding to the external diameter of the current steel coil is determined from a mapping relation of the steel coil external diameter and a tension coefficient; based on the current tension coefficient corresponding to the external diameter of the current steel coil, a tension adjustment value of the uncoiler is obtained; and finally the tension adjustment value is fed back to the uncoiler, so that the uncoiler utilizes the tension adjustment value to replace an actual tension value of the uncoiler to convey the steel coil. In the prior art, the actual tension value of the uncoiler must be constant; however, the actual tension value of the uncoiler in the invention is variable, the tension coefficient is utilized to adjust the present actual tension value of the uncoiler, so that the actual tension value of the uncoiler can be changed, torque is adjusted through the change of the actual tension value, the torque is adjusted to be small, and thus a loose core phenomenon of the steel coil is avoided.
Description
technical field [0001] The present application relates to the technical field of steel rolling, in particular to a tension control method for an uncoiler. Background technique [0002] The uncoiler is an essential equipment for the uncoil production line. For example, when the continuous hot-dip galvanizing production line is working, the uncoiler needs to continuously deliver steel to the continuous hot-dip galvanizing production line for its use. The coiled steel material is sleeved on the uncoiler, and this coiled steel material is usually called a steel coil. [0003] In the existing technology, after the uncoiler uncoils the steel coil, it will transport the steel coil to the continuous hot-dip galvanizing production line according to a constant tension setting value. That is: the uncoiler is required not only to generate a certain uncoiling tension, but also to keep the tension constant throughout the uncoiling process. [0004] However, by the formula It can be s...
Claims
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IPC IPC(8): B65H23/185B65H23/182
CPCB65H23/1825B65H23/185B65H2701/1133B65H2701/173
Inventor 卢杰高文芳乔梁徐志荣肖激扬常生财孙立欣
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD