阅读说明：本技术 卷取机倒卷方法及装置 (Rewinding method and device of recoiling machine ) 是由 王宇鹏 董文亮 刘磊 郑利元 齐杰斌 刘玉金 周晓琦 范正军 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种卷取机倒卷方法、装置及计算机存储介质,其中所述方法包括：获取倒卷张力值及第一芯轴的第一反转速度值,计算第二芯轴的第一正转速度值；输出第一控制信号以控制第一芯轴以第一反转速度值反转、第二芯轴以第一正转速度值正转；当钢卷参数达到预设钢卷参数时,输出第二控制信号；当钢卷运转参数满足预设条件时,输出第三控制信号；判断所述剩余钢卷参数是否在预设剩余钢卷参数范围内；若不是,输出所述第四控制信号使所述第一芯轴以所述第二反转速度值反转、所述第二芯轴以所述第二正转速度值正转,直至所述剩余钢卷参数在预设钢卷参数范围内,输出所述第五控制信号以使所述第一芯轴停止反转,所述第二芯轴停止正转。(The invention discloses a rewinding method and a rewinding device of a recoiling machine and a computer storage medium, wherein the method comprises the following steps: acquiring a rewinding tension value and a first reverse rotation speed value of the first mandrel, and calculating a first forward rotation speed value of the second mandrel; outputting a first control signal to control the first mandrel to reversely rotate at a first reverse rotation speed value and the second mandrel to normally rotate at a first forward rotation speed value; when the steel coil parameter reaches the preset steel coil parameter, outputting a second control signal; outputting a third control signal when the steel coil running parameters meet preset conditions; judging whether the residual steel coil parameters are within a preset residual steel coil parameter range or not; if not, outputting the fourth control signal to enable the first mandrel to reversely rotate at the second reverse rotation speed value and the second mandrel to normally rotate at the second forward rotation speed value until the remaining steel coil parameters are within the preset steel coil parameter range, and outputting the fifth control signal to enable the first mandrel to stop reversely rotating and the second mandrel to stop normally rotating.)

1. A rewinding method of a recoiling machine is applied to a carrousel recoiling machine, the carrousel recoiling machine comprises a revolution large disc, a first mandrel and a second mandrel, the first mandrel and the second mandrel are mounted on the revolution large disc, the revolution large disc can drive the first mandrel and the second mandrel to rotate together, and the first mandrel and the second mandrel can rotate relative to the revolution large disc, and the rewinding method is characterized by comprising the following steps:

acquiring a rewinding tension value and a first reverse rotation speed value of the first mandrel; the first mandrel is a mandrel where the loose core steel coil is located;

calculating a first forward rotation speed value of the second mandrel according to the backward winding tension value and the first reverse rotation speed value; the first forward rotation speed value is smaller than the first reverse rotation speed value, and the difference between the first reverse rotation speed value and the first forward rotation speed value forms the rewinding tension value;

outputting a first control signal to control the first mandrel to reversely rotate at the first reverse rotation speed value and the second mandrel to normally rotate at the first forward rotation speed value so as to enable the loose steel coil to be transited from the first mandrel to the second mandrel;

acquiring a steel coil parameter of the second mandrel, and outputting a second control signal when the steel coil parameter reaches a preset steel coil parameter so as to control the first mandrel to reversely rotate at a second reverse rotation speed value and the second mandrel to normally rotate at a second forward rotation speed value; the second forward rotation speed value is smaller than the second reverse rotation speed value, and the difference between the second reverse rotation speed value and the second forward rotation speed value forms the rewinding tension value;

acquiring steel coil running parameters, and outputting a third control signal to control the first mandrel to stop rotating reversely and the second mandrel to stop rotating positively when the steel coil running parameters meet preset conditions, wherein the revolution large disc drives the first mandrel and the second mandrel to rotate so that the first mandrel is in a coiling position and the second mandrel is in a uncoiling position; the steel coil running parameters are used for judging the rewinding progress of the loose core steel coil;

acquiring the residual steel coil parameters of the first mandrel, and judging whether the residual steel coil parameters are within a preset residual steel coil parameter range;

if not, outputting a fourth control signal to control the first mandrel to reversely rotate at the second reverse rotation speed value and the second mandrel to normally rotate at the second forward rotation speed value until the remaining steel coil parameters are within a preset steel coil parameter range, and outputting a fifth control signal to control the first mandrel to stop reversely rotating and the second mandrel to stop normally rotating.

2. The method of claim 1, wherein prior to outputting a first control signal to reverse the first mandrel at the first reverse rotation speed value and forward the second mandrel at the first forward rotation speed value, further comprising:

acquiring initial steel coil parameters of the loose core steel coil on the first mandrel, and judging whether the initial steel coil parameter range is within a preset initial steel coil parameter range;

if so, outputting the first control signal to enable the first mandrel to reversely rotate at the first reverse rotation speed value and enable the second mandrel to normally rotate at the first forward rotation speed value.

3. The method of claim 1, wherein the coil parameter is a coil number or a coil diameter value.

4. The method of claim 1, wherein the remaining coil parameter is a remaining coil number or a remaining coil diameter value.

5. The method of claim 1 or 2, wherein the obtaining of the coil running parameter, when the coil running parameter satisfies a preset condition, outputs a third control signal comprising:

acquiring the diameter value of the residual steel coil of the first mandrel and the diameter value of the steel coil of the second mandrel;

and outputting the third control signal when the diameter value of the residual steel coil and the diameter value of the steel coil meet preset conditions.

6. The method of claim 5, wherein the outputting the third control signal when the remaining coil diameter value and the coil diameter value satisfy a preset condition comprises:

when the diameter value of the residual steel coil and the diameter value of the steel coil are both smaller than the width of the track, outputting a third control signal, wherein the width of the track is the width of a path through which the loose core steel coil passes when being transited from the first mandrel to the second mandrel.

7. The method of claim 6, wherein outputting the third control signal when the remaining coil diameter value and the coil diameter value are both less than the track width comprises:

and when the diameter value of the residual steel coil is equal to that of the steel coil and is smaller than the width of the track, outputting the third control signal.

8. A method according to any one of claims 1 to 7, wherein the rewinding tension has a value of 20KN to 22 KN.

9. A recoiling device of a recoiling machine is applied to a carrousel recoiling machine, the carrousel recoiling machine comprises a revolution large disc, a first mandrel and a second mandrel, the first mandrel and the second mandrel are mounted on the revolution large disc, the revolution large disc can drive the first mandrel and the second mandrel to rotate together, and the first mandrel and the second mandrel can rotate relative to the revolution large disc, and the device is characterized by comprising:

the acquisition module is used for acquiring a rewinding tension value and a first reverse rotation speed value of the first mandrel; the first mandrel is a mandrel where the loose core steel coil is located;

the calculation module is used for calculating a first forward rotation speed value of the second mandrel according to the rewinding tension value and the first reverse rotation speed value; the first forward rotation speed value is smaller than the first reverse rotation speed value, and the difference between the first reverse rotation speed value and the first forward rotation speed value forms the rewinding tension value;

the first output module is used for outputting a first control signal so as to control the first mandrel to reversely rotate at the first reverse rotation speed value and the second mandrel to normally rotate at the first forward rotation speed value, so that the loose steel coil is transited from the first mandrel to the second mandrel;

the second output module is used for acquiring the steel coil parameters of the second mandrel, and outputting a second control signal when the steel coil parameters reach preset steel coil parameters so as to control the first mandrel to rotate reversely at a second reverse rotation speed value and the second mandrel to rotate forwardly at a second forward rotation speed value; the second forward rotation speed value is smaller than the second reverse rotation speed value, and the difference between the second reverse rotation speed value and the second forward rotation speed value forms the rewinding tension value;

the third output module is used for acquiring the running parameters of the steel coil, and outputting a third control signal to control the first mandrel to stop reverse rotation and the second mandrel to stop forward rotation when the running parameters of the steel coil meet preset conditions, and the revolution large disc drives the first mandrel and the second mandrel to rotate so that the first mandrel is located at a coiling position and the second mandrel is located at a uncoiling position; the steel coil running parameters are used for judging the rewinding progress of the loose core steel coil;

the first judgment module is used for acquiring the residual steel coil parameters of the first mandrel and judging whether the residual steel coil parameters are within a preset residual steel coil parameter range;

and the fourth output module is used for outputting a fourth control signal when the first judgment module judges that the residual steel coil parameters are not in the preset residual steel coil parameter range, so as to control the first mandrel to reversely rotate at the second reverse rotation speed value and the second mandrel to normally rotate at the second forward rotation speed value until the residual steel coil parameters are in the preset steel coil parameter range, and outputting a fifth control signal so as to control the first mandrel to stop reversely rotating and the second mandrel to stop normally rotating.

10. A computer-readable storage medium having a computer program stored thereon, comprising: the program may, when executed by a processor, implement the method steps of any of claims 1 to 8.

Technical Field

The invention relates to the technical field of steel coil unloading, in particular to a rewinding method and a rewinding device of a recoiling machine.

Background

The carrousel coiler is mainly used for coiling the rolled strip steel of the acid rolling mill group and is important equipment for ensuring the continuous production of the acid rolling mill group. When the coiling machine works, the coiling drum is opened to the maximum diameter, the strip head of the strip steel is bitten by the aid of the belt coiling aid, after the coiling is finished, the coiling drum is contracted, and then the coil of strip steel is unloaded by the coil unloading trolley, so that the whole coiling process is completed.

In the rolling process of the strip steel, the strip is often broken due to the quality problem of raw materials, the technical problem of the process and the equipment problem. When the strip is broken, the steel coil being coiled by the carrousel coiler is collapsed and loose core due to loss of tension, once the collapsed and loose core occurs, the automatic coil unloading condition is not met, and the production plan is seriously influenced because the steel coil cannot be unloaded; the existing processing method is that a coil unloading trolley is used for jacking up a steel coil and unloading the steel coil from a winding drum by force, the inner ring of the steel coil can be completely separated in the process, and after the steel coil is separated from the winding drum, the waste strip steel wound on the winding drum is manually cut off and taken off one by one, so that the time is consumed in the operation process, and the risk is large.

Therefore, how to ensure that the loose core steel coil can be safely and quickly dismounted is a technical problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a method and a device for rewinding of a coiler, so as to solve the technical problem that a loose core steel coil cannot be safely and quickly dismounted in the prior art.

In a first aspect, the present application provides the following technical solutions through an embodiment of the present application:

a rewinding method of a recoiling machine is applied to a carrousel recoiling machine, the carrousel recoiling machine comprises a revolution large disc, a first mandrel and a second mandrel, wherein the first mandrel and the second mandrel are installed on the revolution large disc, the revolution large disc can drive the first mandrel and the second mandrel to rotate together, and the first mandrel and the second mandrel can rotate relative to the revolution large disc, and the method comprises the following steps:

acquiring a rewinding tension value and a first reverse rotation speed value of the first mandrel; the first mandrel is a mandrel where the loose core steel coil is located;

calculating a first forward rotation speed value of the second mandrel according to the backward winding tension value and the first reverse rotation speed value; the first forward rotation speed value is smaller than the first reverse rotation speed value, and the difference between the first reverse rotation speed value and the first forward rotation speed value forms the rewinding tension value;

outputting a first control signal to control the first mandrel to reversely rotate at the first reverse rotation speed value and the second mandrel to normally rotate at the first forward rotation speed value so as to enable the loose steel coil to be transited from the first mandrel to the second mandrel;

acquiring a steel coil parameter of the second mandrel, and outputting a second control signal when the steel coil parameter reaches a preset steel coil parameter so as to control the first mandrel to reversely rotate at a second reverse rotation speed value and the second mandrel to normally rotate at a second forward rotation speed value; the second forward rotation speed value is smaller than the second reverse rotation speed value, and the difference between the second reverse rotation speed value and the second forward rotation speed value forms the rewinding tension value;

acquiring steel coil running parameters, and outputting a third control signal to control the first mandrel to stop rotating reversely and the second mandrel to stop rotating positively when the steel coil running parameters meet preset conditions, wherein the revolution large disc drives the first mandrel and the second mandrel to rotate so that the first mandrel is in a coiling position and the second mandrel is in a uncoiling position; the steel coil running parameters are used for judging the rewinding progress of the loose core steel coil;

acquiring the residual steel coil parameters of the first mandrel, and judging whether the residual steel coil parameters are within a preset residual steel coil parameter range;

if not, outputting a fourth control signal to control the first mandrel to reversely rotate at the second reverse rotation speed value and the second mandrel to normally rotate at the second forward rotation speed value until the remaining steel coil parameters are within a preset steel coil parameter range, and outputting a fifth control signal to control the first mandrel to stop reversely rotating and the second mandrel to stop normally rotating.

In one embodiment, before outputting a first control signal to reverse the first mandrel at the first reverse rotation speed value and forward the second mandrel at the first forward rotation speed value, the method further comprises:

acquiring initial steel coil parameters of the loose core steel coil on the first mandrel, and judging whether the initial steel coil parameter range is within a preset initial steel coil parameter range;

if so, outputting the first control signal to enable the first mandrel to reversely rotate at the first reverse rotation speed value and enable the second mandrel to normally rotate at the first forward rotation speed value.

In one embodiment, the steel coil parameter is a steel coil number or a steel coil diameter value.

In one embodiment, the parameter of the remaining steel coil is the number of turns of the remaining steel coil or the diameter value of the remaining steel coil.

In one embodiment, the obtaining of the steel coil running parameter outputs a third control signal when the steel coil running parameter meets a preset condition, where the third control signal includes:

acquiring the diameter value of the residual steel coil of the first mandrel and the diameter value of the steel coil of the second mandrel;

and outputting the third control signal when the diameter value of the residual steel coil and the diameter value of the steel coil meet preset conditions.

In one embodiment, the outputting the third control signal when the remaining steel coil diameter value and the steel coil diameter value satisfy a preset condition includes:

when the diameter value of the residual steel coil and the diameter value of the steel coil are both smaller than the width of the track, outputting a third control signal, wherein the width of the track is the width of a path through which the loose core steel coil passes when being transited from the first mandrel to the second mandrel.

In one embodiment, the outputting the third control signal when the remaining steel coil diameter value and the steel coil diameter value are both smaller than the track width includes:

and when the diameter value of the residual steel coil is equal to that of the steel coil and is smaller than the width of the track, outputting the third control signal.

In one embodiment, the rewind tension value is 20KN to 22 KN.

In a second aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment of the present application:

a rewinding device of a coiling machine is applied to a carrousel coiling machine, the carrousel coiling machine comprises a revolution large disc, a first mandrel and a second mandrel, the first mandrel and the second mandrel are installed on the revolution large disc, the revolution large disc can drive the first mandrel and the second mandrel to rotate together, and the first mandrel and the second mandrel can rotate relative to the revolution large disc, the device comprises:

the acquisition module is used for acquiring a rewinding tension value and a first reverse rotation speed value of the first mandrel; the first mandrel is a mandrel where the loose core steel coil is located;

the calculation module is used for calculating a first forward rotation speed value of the second mandrel according to the rewinding tension value and the first reverse rotation speed value; the first forward rotation speed value is smaller than the first reverse rotation speed value, and the difference between the first reverse rotation speed value and the first forward rotation speed value forms the rewinding tension value;

the first output module is used for outputting a first control signal so as to control the first mandrel to reversely rotate at the first reverse rotation speed value and the second mandrel to normally rotate at the first forward rotation speed value, so that the loose steel coil is transited from the first mandrel to the second mandrel;

the second output module is used for acquiring the steel coil parameters of the second mandrel, and outputting a second control signal when the steel coil parameters reach preset steel coil parameters so as to control the first mandrel to rotate reversely at a second reverse rotation speed value and the second mandrel to rotate forwardly at a second forward rotation speed value; the second forward rotation speed value is smaller than the second reverse rotation speed value, and the difference between the second reverse rotation speed value and the second forward rotation speed value forms the rewinding tension value;

the third output module is used for acquiring the running parameters of the steel coil, and outputting a third control signal to control the first mandrel to stop reverse rotation and the second mandrel to stop forward rotation when the running parameters of the steel coil meet preset conditions, and the revolution large disc drives the first mandrel and the second mandrel to rotate so that the first mandrel is located at a coiling position and the second mandrel is located at a uncoiling position; the steel coil running parameters are used for judging the rewinding progress of the loose core steel coil;

the first judgment module is used for acquiring the residual steel coil parameters of the first mandrel and judging whether the residual steel coil parameters are within a preset residual steel coil parameter range;

and the fourth output module is used for outputting a fourth control signal when the first judgment module judges that the residual steel coil parameters are not in the preset residual steel coil parameter range, so as to control the first mandrel to reversely rotate at the second reverse rotation speed value and the second mandrel to normally rotate at the second forward rotation speed value until the residual steel coil parameters are in the preset steel coil parameter range, and outputting a fifth control signal so as to control the first mandrel to stop reversely rotating and the second mandrel to stop normally rotating.

In a third aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment of the present application:

a computer-readable storage medium having stored thereon a computer program comprising: which when executed by a processor may carry out the method steps of any of the embodiments described above.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

the method has the advantages that the existing structure of the carrousel coiler is utilized, the tension and the speed of the two mandrels of the carrousel coiler are reasonably configured, the core-pulling steel coil on the first mandrel is quickly rewound onto the second mandrel, and the method of rewinding is carried out by utilizing carrousel coiling, so that the coil unloading speed is increased compared with the coil unloading method of the core-pulling steel coil in the prior art; and the steel coil recoiled on the second mandrel is moved to a coil stripping position by using the revolution large disc, so that the recoiled steel coil has an automatic coil stripping condition, and the steel coil at the coil stripping position is automatically unloaded by using the coil stripping trolley, thereby avoiding the potential safety hazard of manual coil stripping.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a flow chart of a method for rewinding by a recoiling machine in an embodiment of the present application;

fig. 2 is a block diagram of a rewinding device of a recoiling machine in an embodiment of the present application.

Detailed Description

The embodiment of the application provides a rewinding method of a recoiling machine, and solves the technical problem that a loose core steel coil cannot be safely and quickly dismounted in the prior art.