阅读说明：本技术 一种螺纹棒材步进式冷床自动选择布料方式的控制方法 (Control method for automatically selecting material distribution mode of threaded bar stepping type cooling bed ) 是由 刘爱涛 陈凯鹏 孙鼎 胡占民 黄育坚 肖志英 查安鸿 林永强 姜海军 赵磊 于 2021-05-27 设计创作，主要内容包括：本申请涉及一种螺纹棒材步进式冷床自动选择布料方式的控制方法。通过设定轧制参数；控制器自动计算轧件从第一检测器到第二检测器的时间；控制器自动计算轧件通过倍尺飞剪的速度；控制器自动计算倍尺到达步进式冷床的时间；控制器自动计算出步进式冷床运行360°需要的时间；控制器自动计算步进式冷床的最大可旋转圈数一系列步骤；能够根据每根倍尺的实际长度,选择单槽布料、隔槽布料、有序单隔槽布料、无序单隔槽布料中最合适的布料方式。(The application relates to a control method for automatically selecting a material distribution mode of a threaded rod stepping type cooling bed. Setting rolling parameters; the controller automatically calculates the time for the product to pass from the first detector to the second detector; the controller automatically calculates the speed of the rolled piece passing through the multiple-length flying shear; the controller automatically calculates the time of the multiple ruler reaching the stepping cooling bed; the controller automatically calculates the time required by the stepping cooling bed to operate for 360 degrees; a controller automatically calculates the maximum rotatable turns of the stepping type cooling bed; the most suitable cloth mode in single-groove cloth, separation groove cloth, ordered single-separation groove cloth and disordered single-separation groove cloth can be selected according to the actual length of each multiple ruler.)

1. A control method for automatically selecting a material distribution mode by a screw rod stepping cooling bed comprises the following steps:

s101: setting rolling parameters including setting a multiple length L, a distance L1 between the first detector and the second detector, operation parameters of a steel feeding device and operation parameters of a stepping type cooling bed;

s102: the controller automatically calculates the time T1 for the product to pass from the first detector to the second detector;

s103: the controller automatically calculates the speed V1 of the rolled piece passing through the multiple length flying shear, and the speed V1 is calculated according to T1 and L1;

s104: the controller automatically calculates the time T0 when the multiple ruler reaches the stepping cooling bed, and the time T0 is calculated according to the V1, the multiple ruler length L set in the step S101 and the operation parameters of the steel feeding device;

s105: the controller automatically calculates the time T required by the 360-degree operation of the stepping cooling bed, and the time T is calculated according to the signal of the third detector, the signal of the fourth detector and the operation parameters of the stepping cooling bed set in the step S101;

s106: the controller automatically calculates the maximum rotatable circle number N of the stepping type cooling bed, wherein the maximum rotatable circle number N of the stepping type cooling bed is calculated according to T0 and T, and N is T0/T;

s107: the controller is automatically adapted to the optimal material distribution mode, when N is more than or equal to 1 and less than 2, the single-groove material distribution mode is selected, and when N is more than or equal to 2, the separation groove material distribution mode is selected.

2. The method according to claim 1, wherein in step S101, the distance L1 between the first detector and the second detector is set during debugging, and the distance L1 is not required to be set again after the setting is completed.

3. The method according to claim 1, wherein in step S101, the length L of the multiple length bar and the parameters related to the steel feeding device are preset in a human-machine interface of a rolling master control.

4. The method for controlling the automatic material distribution mode of the threaded bar stepping cooling bed according to claim 1, wherein in step S102, when the head of the rolled piece reaches the first detector trigger controller, the timing is started, and when the head of the rolled piece reaches the second detector trigger controller, the timing is ended, so that the time T1 required by the rolled piece to reach the second detector from the first detector is automatically calculated.

5. The method according to claim 1, wherein in step S105, the step-by-step cooling bed runs 360 ° in that the moving-tooth motor of the step-by-step cooling bed drives the V-shaped moving-tooth shaft to rotate 360 °.

6. The method for controlling the automatic material distribution mode of the threaded bar stepping cooling bed according to claim 1, wherein the multiple-length flying shear is arranged between the first detector and the second detector, and the head of the rolled piece is sheared into multiple lengths before reaching the second detector.

7. The control method for automatically selecting the distribution mode of the threaded bar stepping cooling bed according to claim 1, wherein after the rolled piece is sheared into multiple lengths, the multiple lengths pass through a cooling bed input roller way to reach a third detector.

8. The control method for automatically selecting the material distribution mode of the threaded rod stepping type cooling bed according to claim 1, wherein the multiple lengths are transferred to the cooling bed from a cooling bed input roller way through the steel feeding device.

9. The control method for automatically selecting the material distribution mode of the screw rod stepping type cooling bed according to claim 1, wherein the multiple length is driven by a V-shaped moving rack on the cooling bed.

10. The control method for the automatic material distribution mode selection of the screw-thread bar stepping type cooling bed according to claim 1, wherein after the multiple lengths are cooled, the multiple lengths are conveyed to a cooling bed output roller way through a blanking device, and then the multiple lengths are conveyed to a cold shear through the cooling bed output roller way to be cut into a finished product with a fixed length.

Technical Field

The invention relates to a control method for producing a threaded rod, in particular to a control method for automatically selecting a material distribution mode by a threaded rod stepping cooling bed.

Background

The cooling bed is one of the indispensable auxiliary equipments in small and medium-sized bar material workshops. The method has the functions that after being rolled by a rolling mill, bars with multiple lengths are sheared by flying shears, conveyed by a steel feeding device (a roller-in roller way, a braking skirt board and a straightening plate), unloaded onto a cooling bed rack for cooling, the temperature of the bars is reduced from 900 ℃ to 100-300 ℃, then the bars are collected by a cooling bed blanking device and sent to an output roller way in groups, and then the bars are sent to the cold shears by the output roller way to be sheared into finished products with fixed lengths.

The existing common cold bed material distribution modes generally comprise two modes, namely single-groove material distribution and partition groove material distribution. The single-groove cloth is that each multiple ruler is orderly placed in the groove, and no separation groove is formed between the multiple rulers, and the cloth is specifically shown in the attached drawing 1. The partition groove cloth, namely a partition groove is arranged between two multiple scales, and is specifically shown in figure 2. However, most of the current material distribution modes of the cooling bed are preset through an operation interface, in the actual use process, especially after a production line overhauls or changes the rolling specification, a reasonable setting range can be found due to the fact that the speed of a rolled piece, the length of a multiple ruler and the speed of the cooling bed all need a groping process, and in the process, the phenomenon that the multiple ruler hits the movable teeth of the sawtooth type stepping cooling bed to cause the steel disorder of the cooling bed occurs carelessly, and production is seriously affected.

In view of this, there is a need for an automatic cloth selection control method, which can automatically select a cloth mode according to the existing process and equipment status to solve the existing difficulties and improve the production efficiency.

Disclosure of Invention

Aiming at the problems of the existing control method of the material distribution mode, the invention aims to provide the control method of the automatic material distribution mode selection of the thread bar cooling bed, which can select the most appropriate material distribution mode from single-groove material distribution, partition-groove material distribution, ordered single-partition-groove material distribution and disordered single-partition-groove material distribution according to the actual length of each multiple ruler.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a control method for automatically selecting a material distribution mode by a screw rod stepping cooling bed comprises the following steps:

s101: setting rolling parameters including setting a multiple length L, a distance L1 between the first detector and the second detector, operation parameters of a steel feeding device and operation parameters of a stepping type cooling bed;

s102: the controller automatically calculates the time T1 for the product to pass from the first detector to the second detector;

s103: the controller automatically calculates the speed V1 of the rolled piece passing through the multiple length flying shear, and the speed V1 is calculated according to T1 and L1;

s104: the controller automatically calculates the time T0 when the multiple ruler reaches the stepping cooling bed, and the time T0 is calculated according to the V1, the multiple ruler length L set in the step S101 and the operation parameters of the steel feeding device;

s105: the controller automatically calculates the time T required by the 360-degree operation of the stepping cooling bed, and the time T is calculated according to the signal of the third detector, the signal of the fourth detector and the operation parameters of the stepping cooling bed set in the step S101;

s106: the controller automatically calculates the maximum rotatable circle number N of the stepping type cooling bed, wherein the maximum rotatable circle number N of the stepping type cooling bed is calculated according to T0 and T, and N is T0/T;

s107: the controller is automatically adapted to the optimal material distribution mode, when N is more than or equal to 1 and less than 2, the single-groove material distribution mode is selected, and when N is more than or equal to 2, the separation groove material distribution mode is selected.

It is emphasized that during actual production operations, the parameters of the various components are adjusted so that the time T0 for the multiple to reach the step cooling bed is equal to or greater than the time T required for the step cooling bed to run through 360 °.

Further, in step S101, the distance L1 between the first detector and the second detector is set at the time of debugging, and does not need to be set again after the setting is completed.

Further, in step S101, the length L of multiple scales and the relevant parameters of the steel feeding device are preset in a human-machine interface of the rolling master control.

Further, in step S102, the time T1 required for the product to reach the second detector from the first detector is automatically calculated by starting the timing when the product head reaches the first detector trigger controller and ending the timing when the product head reaches the second detector trigger controller.

Further, in step S105, the step-by-step cooling bed runs 360 ° in that the moving-tooth motor of the step-by-step cooling bed drives the V-shaped moving-tooth shaft to rotate 360 °.

Further, the multiple-length flying shear is arranged between the first detector and the second detector, and the head of the rolled piece is sheared into multiple lengths before reaching the second detector.

Further, after the rolled piece is sheared into multiple lengths, the multiple lengths reach a third detector through a cold bed input roller way.

Further, the multiple ruler is transferred to the cooling bed from the cold bed input roller way through a steel feeding device.

Furthermore, the multiple ruler is driven by a V-shaped movable rack on the cooling bed.

And further, after the multiple lengths are cooled, the multiple lengths are conveyed to a cold bed output roller way through a blanking device, and then the multiple lengths are conveyed to a cold shear through the cold bed output roller way to be cut into a fixed-length finished product.

Compared with the prior art, the control method for automatically selecting the material distribution mode of the thread bar cooling bed has the advantages that the material distribution mode with the best adaptability can be automatically selected according to set parameters and field actual conditions, the single-groove material distribution or the partition groove material distribution or the ordered single-partition groove material distribution or the disordered single-partition groove material distribution does not need to be determined in advance, the situation that a reasonable setting range can be found only through experience and search in the field is avoided, the stability is good, the cooling area of the cooling bed is effectively utilized, various requirements of a production process are met, and the practicability is high.

The invention is further illustrated by the following figures and examples.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

1. FIG. 1 is a schematic diagram of a prior art single-slot material distribution for a cooling bed.

2. FIG. 2 is a schematic diagram of the distribution of the cooling bed partition groove in the prior art.

3. Fig. 3 is a schematic plan view of the present invention.

4. Fig. 4 is a flow chart of the present invention.

In the figure: 1-a first detector; 2-a second detector; 3-a third detector; 4-a fourth detector; 5-double length flying shears; 6-cold bed input roller way; 7-step cooling bed; 8-cold bed run-out table.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description is omitted.

Fig. 3 is a schematic plan view of the present invention. The rolled piece is along the horizontal arrow direction of drawing of the drawing and imports through cooling bed rollingin table 6, through first detector 1, after being sheared into the multiple length by multiple length flying shear 5, through second detector 2, move to near marching type cooling bed 7 after third detector 3 on cooling bed rollingin table 6, then go up the steel device and shift the multiple length to marching type cooling bed 7 on, the multiple length is moved along the vertical arrow direction of drawing of the drawing by the drive of V type movable rack on the cooling bed, in this process, the heat of the multiple length is given off in the air, the temperature descends remarkably.

Fig. 4 is a flow chart of the present invention. The control method for automatically selecting the material distribution mode of the threaded bar cooling bed comprises the following steps: (1) setting rolling parameters; (2) the controller automatically calculates the optimal material distribution mode according to the related parameters; (3) and executing the cloth motion according to the cloth mode automatically calculated by the controller to carry out the cloth.

As shown in the attached figure 4, the control method for automatically selecting the material distribution mode of the threaded bar cooling bed comprises the following steps:

step S101, setting rolling parameters;

step S102, the controller automatically calculates the time T1 of the rolled piece from the first detector 1 to the second detector 2;

step S103, the controller automatically calculates the speed V1 of the rolled piece passing through the multiple length flying shear 5;

step S104, the controller automatically calculates the time T0 for the multiple length to reach the stepping cooling bed 7;

step S105, the controller automatically calculates the time T required by the 360-degree operation of the stepping cooling bed 7;

step S106, the controller automatically calculates the maximum rotatable circle number N of the stepping type cooling bed 7;

and S107, automatically adapting the controller to the optimal material distribution mode.

The steps in fig. 4 are described in detail below with reference to fig. 3.

Step S101, setting rolling parameters, namely setting a multiple length L, a distance L1 between a first detector 1 and a second detector 2, an operation parameter of a steel feeding device and an operation parameter of a stepping cooling bed 7, wherein the distance L1 between the first detector 1 and the second detector 2 is set during debugging and does not need to be set again after setting is finished;

step S102, the controller automatically calculates the time T1 of the rolled piece from the first detector 1 to the second detector 2, the step starts to time when the head of the rolled piece reaches the first detector 1 and finishes the time when the head of the rolled piece reaches the second detector 2, so that the time T1 required by the rolled piece to reach the second detector 2 from the first detector 1 is automatically calculated;

step S103, the controller automatically calculates the speed V1 of the rolled piece passing through the double-length flying shear 5, and the controller automatically calculates the speed V1 of the rolled piece passing through the double-length flying shear 5 according to the distance L1 between the T1 calculated in step S102 and the first detector 1 and the second detector 2 set in step S101;

step S104, the controller automatically calculates the time T0 for the multiple length to reach the stepping cooling bed 7, and the controller automatically calculates the time T0 for the multiple length to reach the cooling bed according to the speed V1 calculated in step S103, the multiple length L set in step S101 and the operation parameters of the steel feeding device;

in step S105, the controller automatically calculates the time T required for the step-type cooling bed to operate for 360 °, and in this step, the controller automatically calculates the time T required for the step-type cooling bed 7 to operate for 360 ° according to the signal of the third detector 3, the signal of the fourth detector 4, and the operation parameter of the step-type cooling bed 7 set in step S101. It should be explained that, in the existing steel rolling process, the rolled piece rolled in the rolling mill area needs to be cut into multiple lengths by multiple length shears, and the multiple lengths are sequentially conveyed to the initial position of the cooling bed by a conveying roller way and are thrown to a static beam of the cooling bed by a skirt plate positioned at the initial inlet of the cooling bed. After the static beam of the cooling bed is connected with the multiple ruler, the movable gear motor drives the V-shaped movable gear shaft to rotate for a period of 360 degrees, in the process, the V-shaped movable gear rack supports the multiple ruler arranged on the static beam, the multiple ruler moves forwards one step and is arranged in the V-shaped groove of the next static beam, the movable gear which moves a circle returns to the initial position to wait for the start of the next circulation action, and the operation is 360 degrees when the stepping cooling bed operates.

Step S106, the controller automatically calculates the maximum rotatable circle number N of the stepping type cooling bed 7, the controller calculates the time T according to the time T0 calculated in step S104 and the time T calculated in step S105, and the maximum rotatable circle number N of the stepping type cooling bed 7 is automatically calculated, wherein N is T0/T;

and S107, automatically adapting the optimal material distribution mode by the controller according to the maximum rotatable turn number N of the stepping type cooling bed calculated in the step S106.

The specific implementation process comprises the following steps: the controller carries out condition judgment according to the calculated current multiple ruler time T0 and the time T of the walking of the stepping cooling bed for one circle, when N is more than or equal to 1 and less than 2, the system automatically selects a single-groove material distribution mode, the walking is carried out by 1 circle of rotation of the stepping cooling bed after the current multiple ruler reaches the stepping cooling bed, the controller continues to calculate the next multiple ruler, when N is more than or equal to 1 and less than 2 which are calculated in the same way, the single-groove material distribution mode is continuously selected, the walking is carried out by 1 circle of rotation of the stepping cooling bed after the next multiple ruler falls in the next groove, and a continuous single-groove material distribution mode is formed. When the calculated time N is more than or equal to 2, the speed N of the rotating ring of the stepping cooling bed is judged to rotate at least 2 circles, the system selects a separation groove material distribution mode, when the current multiple ruler does not reach the stepping cooling bed, the stepping cooling bed rotates 1 circle to move forwards for one step and then stops running, and after the multiple ruler reaches the cooling bed, the multiple ruler rotates 1 circle to move forwards again to form a separation groove material distribution mode. When the next multiple length is calculated to be more than or equal to 1 and less than or equal to 2, the system judges that a single-groove material distribution mode is adopted, and the step-type cooling bed acts after the multiple length reaches the step-type cooling bed, so that single-partition-groove material distribution is formed. The control system selects different material distribution modes by calculating each multiple ruler, so that different material distribution modes are formed on the stepping type cooling bed.

It is emphasized that during actual production operations, the parameters of the various components are adjusted so that the time T0 for the multiple to reach the step cooling bed is equal to or greater than the time T required for the step cooling bed to run through 360 °.

According to the automatic material distribution mode, the material distribution mode with the best adaptability can be automatically selected according to set rolling parameters, single-groove material distribution or partition groove material distribution or ordered single-partition groove material distribution or disordered single-partition groove material distribution is not required to be set in advance, the phenomenon that multiple scales collide movable teeth of a stepping type cooling bed to cause disorder steel of the cooling bed due to improper selection of the speed of a rolled piece, the length of multiple scales and the speed of the cooling bed and the material distribution mode after a production line is overhauled or rolling specifications are changed is avoided, the stability is good, the cooling area of the cooling bed is effectively utilized, various requirements of a production process are met, and the practicability is high.

The control process of automatically selecting the material distribution mode is specifically described below by way of an example.

Example 1

Step S101, setting rolling parameters, where the multiple length L is 62 meters, the distance L1 between the first detector 1 and the second detector 2 is 31 meters, the operating parameters of the steel feeding device, and the operating parameters of the walking beam cold bed 7, where the distance L1 between the first detector 1 and the second detector 2 is set during commissioning and does not need to be set again after the setting is completed;

step S102, the controller automatically calculates the time T1 of the rolled piece from the first detector 1 to the second detector 2, the step starts to time when the head of the rolled piece reaches the first detector 1 and finishes the time when the head of the rolled piece reaches the second detector 2, so that the time T1 of the rolled piece from the first detector 1 to the second detector 2 is automatically calculated to be 2.1 seconds;

step S103, the controller automatically calculates the speed V1 of the rolled piece passing through the double-length flying shear 5, and the controller automatically calculates the speed V1 of the rolled piece passing through the double-length flying shear 5 to be 14.76 m/S according to the distance L1 between the T1 calculated in step S102 and the first detector 1 and the second detector 2 set in step S101;

step S104, the controller automatically calculates the time T0 for the multiple length to reach the stepping cooling bed 7, and the controller automatically calculates the time T0 for the multiple length to reach the cooling bed to be 7.42 seconds according to the speed V1 calculated in step S103, the multiple length L set in step S101 and the operation parameters of the steel feeding device;

in step S105, the controller automatically calculates the time T required for the walking-beam cooling bed to operate 360 °, and in this step, the controller automatically calculates the time T required for the walking-beam cooling bed 7 to operate 360 ° to be 3.98 seconds, based on the signal of the third detector 3, the signal of the fourth detector 4, and the operation parameter of the walking-beam cooling bed 7 set in step S101.

Step S106, the controller automatically calculates the maximum number of turns N of the stepping cooling bed 7, in which the controller calculates the time T according to the time T0 calculated in step S104 and step S105, and automatically calculates the maximum number of turns N of the stepping cooling bed 7 to be 1.86 turns;

and S107, automatically adapting the controller to the optimal material distribution mode, wherein in the step, the controller calculates the maximum rotatable turn number N of the stepping cooling bed according to the step S106 to be 1.86 turns, N is more than or equal to 1 and less than 2, and the system automatically selects a single-groove material distribution mode for the bar material.

Example 2

Step S101, setting rolling parameters, where the multiple length L is 84 meters, the distance L1 between the first detector 1 and the second detector 2 is 31 meters, the operating parameters of the steel feeding device, and the operating parameters of the walking beam cold bed 7, where the distance L1 between the first detector 1 and the second detector 2 is set during commissioning and does not need to be set again after the setting is completed;

step S102, the controller automatically calculates the time T1 of the rolled piece from the first detector 1 to the second detector 2, the step starts to time when the head of the rolled piece reaches the first detector 1 and finishes the time when the head of the rolled piece reaches the second detector 2, so that the time T1 of the rolled piece from the first detector 1 to the second detector 2 is automatically calculated to be 2.1 seconds;

step S103, the controller automatically calculates the speed V1 of the rolled piece passing through the double-length flying shear 5, and the controller automatically calculates the speed V1 of the rolled piece passing through the double-length flying shear 5 to be 14.76 m/S according to the distance L1 between the T1 calculated in step S102 and the first detector 1 and the second detector 2 set in step S101;

step S104, the controller automatically calculates the time T0 for the multiple length to reach the stepping cooling bed 7, and in this step, the controller automatically calculates the time T0 for the multiple length to reach the cooling bed to be 9.26 seconds according to the speed V1 calculated in step S103, the multiple length L set in step S101, and the operation parameters of the steel feeding device;

in step S105, the controller automatically calculates the time T required for the walking-beam cooling bed to operate 360 °, and in this step, the controller automatically calculates the time T required for the walking-beam cooling bed 7 to operate 360 ° to be 3.98 seconds, based on the signal of the third detector 3, the signal of the fourth detector 4, and the operation parameter of the walking-beam cooling bed 7 set in step S101.

Step S106, the controller automatically calculates the maximum number of turns N of the stepping cooling bed 7, in which the controller calculates the time T according to the time T0 calculated in step S104 and step S105, and automatically calculates the maximum number of turns N of the stepping cooling bed 7 to be 2.32 turns;

and S107, automatically adapting the controller to the optimal material distribution mode, wherein in the step, the controller calculates the maximum rotatable circle number N of the stepping cooling bed according to the step S106 to be 2.32 circles, N is more than or equal to 2, and the system automatically selects the material distribution mode of the bar separating groove.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein, and equivalents may be substituted for elements thereof without departing from the scope of the present invention.