Method for automatically adjusting rotating speed of tandem rolling mill

Abstract

The invention relates to a method for automatically adjusting the rotating speed of a tandem rolling mill. The method comprises the steps that rolling table parameters of a target rolling mill are obtained; judging whether the rolling table parameters of the target rolling mill are changed or not; and when the rolling table parameters change, the rolling speed of the target rolling mill is reduced to the steel biting speed. When the rolling parameters change, the speed of the rolling mill is automatically reduced to the steel biting speed, abnormal conditions in the rolling process can be effectively reduced, and potential safety hazards caused by misoperation are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mills, and in particular to a method for automatically adjusting the rotation speed of a tandem rolling mill. Background Art

[0002] With the rapid development of industrial automation technology, safety issues in the steel production process have gradually become the focus of engineers. In the traditional rolling process, operators need to manually adjust the rolling speed to a slower steel biting speed before the steel comes in, so that there is enough time to respond when the steel is bent or fast off the track, and take timely measures to avoid production accidents. However, this manual adjustment method has certain limitations. Operators may fail to adjust the rolling speed in time due to busy work or negligence, resulting in increased safety hazards. Summary of the invention

[0003] In order to solve the above problems, an object of an embodiment of the present invention is to provide a method for automatically adjusting the rotation speed of a tandem rolling mill.

[0004] A method for automatically adjusting the rotation speed of a tandem rolling mill, comprising:

[0005] Step 1: Obtain rolling table parameters of the target rolling mill;

[0006] Step 2: Determine whether the rolling table parameters of the target rolling mill have changed;

[0007] Step 3: When the rolling table parameters change, the rolling speed of the target rolling mill is reduced to the steel biting speed.

[0008] Preferably, the rolling table parameters include: rolling temperature, rolling speed and reduction.

[0009] Preferably, in step 3, when the rolling speed of the target rolling mill drops to the steel-biting speed, the staff is reminded to adjust the rolling table parameters. When the rolling table parameters reach the set values, the rolling speed of the target rolling mill is adjusted to be consistent with the rolling speed in the rolling table parameters.

[0010] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0011] The present invention relates to a method for automatically adjusting the rotation speed of a tandem rolling mill. Compared with the prior art, the present invention automatically reduces the rolling mill speed to a steel biting speed when rolling parameters change, which can effectively reduce abnormal situations in the rolling process and reduce safety hazards caused by operational errors.

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of a function of automatic adjustment of the rolling mill speed provided by the present invention;

[0015] Figure 2 This is a functional block diagram of the automatic adjustment of the rolling mill speed provided by the present invention. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] A method for automatically adjusting the rotation speed of a tandem rolling mill, comprising:

[0020] Step 1: Obtain rolling table parameters of the target rolling mill; the rolling table parameters include: rolling temperature, rolling speed and reduction.

[0021] Step 2: Determine whether the rolling table parameters of the target rolling mill have changed;

[0022] Step 3: When the rolling table parameters change, the rolling speed of the target rolling mill is reduced to the steel biting speed.

[0023] In step 3, when the rolling speed of the target rolling mill drops to the steel biting speed, the staff is reminded to adjust the rolling table parameters. When the rolling table parameters reach the set values, the rolling speed of the target rolling mill is adjusted to be consistent with the rolling speed in the rolling table parameters.

[0024] See also Figure 1-2 In practical applications, the present invention can identify whether the rolling table parameters have changed through the function functions in the diagnostic program. Among them, the function functions include:

[0025] Input parameters:

[0026] EN: function block enable;

[0027] StartFunction: The automatic adjustment function of the rolling mill speed is started;

[0028] Bite_Sp: biting speed of billet;

[0029] Rolling_Sp: normal billet rolling speed;

[0030] AdjustSignal: rolling table adjustment signal;

[0031] ArrivalSignal: new billet rolling signal;

[0032] Output parameters:

[0033] ENO: function block output enable;

[0034] Out_Sp: adjusted rolling speed;

[0035] ACT_State: Current adjustment status.

[0036] When changing new varieties or adjusting rolling parameters, the data in the rolling table will change. The diagnostic program can monitor the changes in the rolling table parameters in real time through the above-mentioned function functions, and automatically determine whether adjustments are needed. When the rolling table parameters change, the program will automatically reduce the rolling speed to the steel biting speed. This preset safety strategy can effectively reduce the production risks caused by parameter changes. Reducing the rolling speed can reduce the probability of emergencies and give operators more time and space to deal with possible problems. Finally, after the rolling table parameters are adjusted, the program will automatically restore the rolling speed to the original fast rolling speed. This can ensure the continuity and stability of the production process during the adjustment process, reduce production downtime, and improve production efficiency.

[0037] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0038] (1) Improve production safety:

[0039] It can reduce the potential safety risks caused by manual intervention. By real-time monitoring of the changes in rolling table parameters and automatically adjusting the rolling speed, the probability of production accidents caused by parameter changes can be reduced, ensuring the safety of the production process.

[0040] (2) Simplify the operation process:

[0041] The automatic modification of rolling table parameter program makes the rolling speed adjustment process more automated and intelligent, reducing the operator's manual intervention and judgment burden. This simplifies the operation process, reduces the possibility of human error, and improves production efficiency.

[0042] (3) Quality improvement:

[0043] By automatically adjusting the rolling speed, manual intervention is reduced, the stability and consistency of the rolling process is ensured, and quality fluctuations caused by manual operation are reduced. Real-time monitoring and adjustment of rolling table parameters make the parameters in the rolling process more accurate, thereby improving the quality stability and uniformity of the products.

[0044] (4) Increased production volume:

[0045] Automatically recovering the rolling speed reduces the production downtime after parameter adjustment, improves the operation efficiency of the production line, and increases the total production. During the parameter adjustment period, the program automatically reduces the speed and restores the original speed to reduce unnecessary waiting time, making the production process more consistent and efficient.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for automatically adjusting the rotation speed of a tandem rolling mill, characterized in that: include: Step 1: Obtain rolling table parameters of the target rolling mill; Step 2: Determine whether the rolling table parameters of the target rolling mill have changed; Step 3: When the rolling table parameters change, the rolling speed of the target rolling mill is reduced to the steel biting speed.

2. The method for automatically adjusting the rotation speed of a tandem rolling mill according to claim 1, characterized in that: The rolling table parameters include: rolling temperature, rolling speed and reduction.

3. The method for automatically adjusting the rotation speed of a tandem rolling mill according to claim 2, characterized in that: In step 3, when the rolling speed of the target rolling mill drops to the steel biting speed, the staff is reminded to adjust the rolling table parameters. When the rolling table parameters reach the set values, the rolling speed of the target rolling mill is adjusted to be consistent with the rolling speed in the rolling table parameters.

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