阅读说明：本技术 一种用于降低套筒使用量的方法及装置 (Method and device for reducing using amount of sleeve ) 是由 柯于军 于 2020-03-31 设计创作，主要内容包括：本发明提供一种用于降低套筒使用量的方法,方法包括：确定当前片带钢的带头起始位置；获取带头起始位置与焊缝检测器之间的第一距离以及带头起始位置与所述轧机入口之间的第二距离；判断第一距离是否满足预设的第一范围且同时判断第二距离是否满足预设的第二范围；若第一距离满足第一范围且第二距离满足第二范围时,获取当前片带钢头部的第一缺陷检测结果；若确定第一缺陷检测结果为有缺陷,则触发第一卷取信号,根据所述第一卷取信号控制卷取机的当前芯轴对所述当前片带钢的带头进行卷取；如此,在对当前片带钢轧制之前,可确定出当前片带钢的头部是否有缺陷,如果有缺陷则将利用卷取机的当前芯轴进行卷取,降低套筒使用量,降低生产成本。(The invention provides a method for reducing the usage amount of a sleeve, which comprises the following steps: determining the starting position of the head of the strip steel at the current front piece; acquiring a first distance between a starting position of a strip head and a welding seam detector and a second distance between the starting position of the strip head and an inlet of the rolling mill; judging whether the first distance meets a preset first range and simultaneously judging whether the second distance meets a preset second range; if the first distance meets the first range and the second distance meets the second range, acquiring a first defect detection result of the head of the strip steel at the front part; if the first defect detection result is determined to be defective, triggering a first coiling signal, and controlling a current mandrel of a coiling machine to coil the strip head of the strip steel on the current sheet according to the first coiling signal; therefore, before the current piece of strip steel is rolled, whether the head of the current piece of strip steel is defective or not can be determined, if the head of the current piece of strip steel is defective, the current mandrel of the coiling machine is utilized to coil, the using amount of the sleeve is reduced, and the production cost is reduced.)

1. The method for reducing the use amount of the sleeve is characterized by being applied to an acid continuous rolling production line, wherein the acid continuous rolling production line is sequentially provided with the following components in the running direction of strip steel: the device comprises pickling equipment, a surface defect detector, a trimming machine, a welding seam detector, a loop, a rolling mill and a coiling machine; the method comprises the following steps:

determining the starting position of the head of the strip steel at the current front piece;

after the starting position of the strip head passes through a welding seam detector, acquiring a first distance between the starting position of the strip head and the welding seam detector and a second distance between the starting position of the strip head and the inlet of the rolling mill;

judging whether the first distance meets a preset first range and simultaneously judging whether the second distance meets a preset second range, wherein the first range is 10-11 m, and the second range is determined according to the running speed of the strip steel on the current sheet and the preparation time for the sleeve to be normally used;

if the first distance meets the first range and the second distance meets the second range, acquiring a first defect detection result of the head of the strip steel at the current position;

if the first defect detection result is determined to be defective, triggering a first coiling signal, and controlling a current mandrel of a coiling machine to coil the strip head of the strip steel on the current sheet according to the first coiling signal; wherein the content of the first and second substances,

the preparation time for the sleeve to be normally used is determined according to the preparation time of the belt wrapper and the preparation time for the sleeve to be sleeved into the mandrel.

2. The method of claim 1, wherein determining a beginning of a leading portion of the current strip comprises:

when the front-piece strip steel is a first piece of strip steel, acquiring the head position of the front-piece strip steel, wherein the head position of the front-piece strip steel is the head starting position of the front-piece strip steel;

when the front band steel is any band steel except the first band steel, acquiring a welding seam position between the front band steel and the last band steel of the front band steel, wherein the welding seam position is a starting position of a head of the front band steel.

3. The method of claim 1, wherein the method further comprises:

acquiring the starting position of the tail of the strip steel at the current front piece;

after the starting position of the strip tail passes through a welding seam detector, acquiring a third distance between the starting position of the strip tail and the welding seam detector and a fourth distance between the starting position of the strip tail and the inlet of the rolling mill;

judging whether the third distance meets the first range and simultaneously judging whether the fourth distance meets a preset second range;

if the third distance meets the first range and the fourth distance meets the second range, obtaining a second defect detection result of the tail of the current piece of strip steel;

and if the second defect detection result is determined to be defective, cutting the strip tail of the strip steel at the front part, and triggering the first coiling signal, wherein the first coiling signal is used for controlling a current mandrel of a coiling machine to coil the strip tail of the strip steel at the front part.

4. The method of claim 1, wherein if the first defect detection result is determined to be defect-free, the method further comprises:

triggering a second coiling signal, wherein the second coiling signal is used for controlling the coiling machine to utilize the sleeve to normally coil the head of the strip steel on the current front sheet.

5. The method of claim 1, wherein if the first defect detection result is determined to be defect-free, the method further comprises:

and when the second distance is 145-150 m, determining that the first trigger signal that the belt wrapper rises to the right position has not been received, and sending alarm prompt information.

6. The method of claim 1, wherein if the first defect detection result is determined to be defect-free, the method further comprises:

acquiring the running time of the current piece of strip steel after entering the rolling mill, and if the running time reaches the preset first time, determining that the sleeve is not sleeved on the mandrel, and sending alarm prompt information; wherein the predetermined first time comprises 5-6 min.

7. The method of claim 1, wherein if the first defect detection result is determined to be defect-free, the method further comprises:

acquiring the running time of the current strip steel after entering the rolling mill, and if the running time reaches a preset second time and the sleeve does not reach a preset area, sending alarm prompt information; wherein the predetermined second time comprises 4-5 min.

8. The method of claim 1, wherein after the current mandrel of the coiler is controlled to coil the head of the current strip according to the first coiling signal, the method further comprises:

and automatically triggering a second coiling signal, wherein the second coiling signal is used for controlling the coiler to normally coil the middle part of the strip steel by using the sleeve.

9. The utility model provides a device for reducing sleeve use amount which characterized in that uses on sour continuous rolling production line, sour continuous rolling production line has set gradually according to belted steel traffic direction: the device comprises pickling equipment, a surface defect detector, a trimming machine, a welding seam detector, a loop, a rolling mill and a coiling machine; the device comprises:

the determining unit is used for determining the starting position of the head of the strip steel at the current front sheet;

the first acquisition unit is used for acquiring a first distance between the starting position of the strip head and the weld detector and a second distance between the starting position of the strip head and the inlet of the rolling mill after the starting position of the strip head passes through the weld detector;

the judging unit is used for judging whether the first distance meets a preset first range and judging whether the second distance meets a preset second range, the first range is 10-11 m, and the second range is determined according to the running speed of the strip steel on the current piece and the preparation time for the sleeve to be normally used;

the second obtaining unit is used for obtaining a first defect detection result of the head of the current front strip steel when the first distance meets the first range and the second distance meets the second range;

the triggering unit is used for triggering a first coiling signal if the first defect detection result is determined to be defective, and controlling a current mandrel of a coiling machine to coil the strip head of the strip steel at the current front according to the first coiling signal; wherein the content of the first and second substances,

the preparation time for the sleeve to be normally used is determined according to the preparation time of the belt wrapper and the preparation time for the sleeve to be sleeved into the mandrel.

10. The apparatus of claim 9, wherein the trigger unit is further to:

and if the first defect detection result is determined to be defect-free, triggering a second coiling signal, wherein the second coiling signal is used for controlling the coiling machine to utilize the sleeve to normally coil the strip steel.

Technical Field

The invention belongs to the technical field of cold rolling, and particularly relates to a method and a device for reducing the using amount of a sleeve.

Background

When the thin gauge strip steel is produced on a cold rolling acid continuous rolling production line, the raw materials sometimes have defects such as pits, edge cracks, folding and the like.

In order to avoid the phenomena of strip breakage, roller damage and the like caused by the defective raw materials when the defective raw materials pass through a rolling mill, an empty winding mode with an opened roll gap is usually selected, and the defective raw materials are directly wound into a sleeve to form a waste winding. However, once the sleeve is used, it cannot be drawn out again for use, and therefore, it is inevitable to coil the sleeve into the waste roll in the empty roll mode. In actual production, the number of empty coils per month is 120-200, so that the using amount of the sleeve is too high, and the production cost is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the embodiment of the invention provides a method and a device for reducing the using amount of a sleeve, which are used for solving the technical problem that when a cold rolling acid continuous rolling production line is used for producing thin-specification strip steel, the using amount of the sleeve is too high when an empty coil mode is used for coiling a waste coil, and further the production cost is increased in the prior art.

The invention provides a method for reducing the use amount of a sleeve, which is applied to an acid continuous rolling production line, wherein the acid continuous rolling production line is sequentially provided with the following components in the running direction of strip steel: the device comprises pickling equipment, a surface defect detector, a trimming machine, a welding seam detector, a loop, a rolling mill and a coiling machine; the method comprises the following steps:

determining the starting position of the head of the strip steel at the current front piece;

after the starting position of the strip head passes through a welding seam detector, acquiring a first distance between the starting position of the strip head and the welding seam detector and a second distance between the starting position of the strip head and the inlet of the rolling mill;

judging whether the first distance meets a preset first range and simultaneously judging whether the second distance meets a preset second range, wherein the first range is 10-11 m, and the second range is determined according to the running speed of the strip steel on the current sheet and the preparation time for the sleeve to be normally used;

if the first distance meets the first range and the second distance meets the second range, acquiring a first defect detection result of the head of the strip steel at the current position;

if the first defect detection result is determined to be defective, triggering a first coiling signal, and controlling a current mandrel of a coiling machine to coil the strip head of the strip steel on the current sheet according to the first coiling signal; wherein the content of the first and second substances,

the preparation time for the sleeve to be normally used is determined according to the preparation time of the belt wrapper and the preparation time for the sleeve to be sleeved into the mandrel.

Optionally, the determining a start position of a head of the current strip steel includes:

when the front strip steel is the first strip steel, acquiring the head position of the front strip steel, wherein the head position of the front strip steel is the head starting position of the front strip steel.

When the front band steel is any band steel except the first band steel, acquiring a welding seam position between the front band steel and the last band steel of the front band steel, wherein the welding seam position is a starting position of a head of the front band steel.

Optionally, the method further comprises:

acquiring the starting position of the tail of the strip steel at the current front piece;

after the starting position of the strip tail passes through a welding seam detector, acquiring a third distance between the starting position of the strip tail and the welding seam detector and a fourth distance between the starting position of the strip tail and the inlet of the rolling mill;

judging whether the third distance meets the first range and simultaneously judging whether the fourth distance meets a preset second range;

if the third distance meets the first range and the fourth distance meets the second range, obtaining a second defect detection result of the tail of the current piece of strip steel;

and if the second defect detection result is determined to be defective, cutting the strip tail of the strip steel at the front part, and triggering the first coiling signal, wherein the first coiling signal is used for controlling a current mandrel of a coiling machine to coil the strip tail of the strip steel at the front part.

Optionally, if it is determined that the first defect detection result is defect-free, the method further includes:

triggering a second coiling signal, wherein the second coiling signal is used for controlling the coiling machine to utilize the sleeve to normally coil the head of the strip steel on the current front sheet.

Optionally, if it is determined that the first defect detection result is defect-free, the method further includes:

and when the second distance is 145-150 m, determining that the first trigger signal that the belt wrapper rises to the right position has not been received, and sending alarm prompt information.

Optionally, if it is determined that the first defect detection result is defect-free, the method further includes:

acquiring the running time of the current piece of strip steel after entering the rolling mill, and if the running time reaches the preset first time, determining that the sleeve is not sleeved on the mandrel, and sending alarm prompt information; wherein the predetermined first time comprises 5-6 min.

Optionally, if it is determined that the first defect detection result is defect-free, the method further includes:

acquiring the running time of the current strip steel after entering the rolling mill, and if the running time reaches a preset second time and the sleeve does not reach a preset area, sending alarm prompt information; wherein the predetermined second time comprises 4-5 min.

Optionally, after the current mandrel of the coiling machine is controlled to coil the head of the current strip steel according to the first coiling signal, the method further includes:

and automatically triggering a second coiling signal, wherein the second coiling signal is used for controlling the coiler to normally coil the middle part of the strip steel by using the sleeve.

The invention also provides a device for reducing the use amount of the sleeve, which is applied to the continuous acid rolling production line, wherein the continuous acid rolling production line is sequentially provided with the following components in the running direction of the strip steel: the device comprises pickling equipment, a surface defect detector, a trimming machine, a welding seam detector, a loop, a rolling mill and a coiling machine; the device comprises:

the determining unit is used for determining the starting position of the head of the strip steel at the current front sheet;

the first acquisition unit is used for acquiring a first distance between the starting position of the strip head and the weld detector and a second distance between the starting position of the strip head and the inlet of the rolling mill after the starting position of the strip head passes through the weld detector;

the judging unit is used for judging whether the first distance meets a preset first range and judging whether the second distance meets a preset second range, the first range is 10-11 m, and the second range is determined according to the running speed of the strip steel on the current piece and the preparation time for the sleeve to be normally used;

the second obtaining unit is used for obtaining a first defect detection result of the head of the current front strip steel when the first distance meets the first range and the second distance meets the second range;

the triggering unit is used for triggering a first coiling signal if the first defect detection result is determined to be defective, and controlling a current mandrel of a coiling machine to coil the strip head of the strip steel at the current front according to the first coiling signal; wherein the content of the first and second substances,

the preparation time for the sleeve to be normally used is determined according to the preparation time of the belt wrapper and the preparation time for the sleeve to be sleeved into the mandrel.

Optionally, the triggering unit is further configured to:

and if the first defect detection result is determined to be defect-free, triggering a second coiling signal, wherein the second coiling signal is used for controlling the coiling machine to utilize the sleeve to normally coil the strip steel.

The invention provides a method for reducing the use amount of a sleeve, which is applied to an acid continuous rolling production line, wherein the acid continuous rolling production line is sequentially provided with the following components in the running direction of strip steel: the device comprises pickling equipment, a surface defect detector, a trimming machine, a welding seam detector, a loop, a rolling mill and a coiling machine; the method comprises the following steps: determining the starting position of the head of the strip steel at the current front piece; after the starting position of the strip head passes through a welding seam detector, acquiring a first distance between the starting position of the strip head and the welding seam detector and a second distance between the starting position of the strip head and the inlet of the rolling mill; judging whether the first distance meets a preset first range and simultaneously judging whether the second distance meets a preset second range, wherein the first range is 10-11 m, and the second range is determined according to the running speed of the strip steel on the current sheet and the preparation time for the sleeve to be normally used; if the first distance meets the first range and the second distance meets the second range, acquiring a first defect detection result of the head of the strip steel at the current position; if the first defect detection result is determined to be defective, triggering a first coiling signal, and controlling a current mandrel of a coiling machine to coil the strip head of the strip steel on the current sheet according to the first coiling signal; the preparation time for the sleeve to be normally used is determined according to the preparation time of the belt wrapper and the preparation time for the sleeve to be sleeved into the mandrel; so, before rolling current piece belted steel, just can determine whether defect is rolled to the head of current piece belted steel, if defect then will utilize the current dabber of coiling machine to batch, avoid utilizing the sleeve to batch defective belted steel like this to reduce the sleeve use amount, and then reduction in production cost.

Drawings

FIG. 1 is a flow chart of a method for reducing the amount of a sleeve used according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a device for reducing the amount of a sleeve used according to a second embodiment of the present invention;

fig. 3 is a schematic view of the usage amount of the month sleeve provided in embodiment 3 of the present invention.

Detailed Description

The method aims to solve the technical problem that in the prior art, when thin-specification strip steel is produced on a cold rolling acid continuous rolling production line, the use amount of a sleeve is too high when waste coils are coiled in an empty coil mode, and further the production cost is increased. The invention provides a method and a device for reducing the using amount of a sleeve, which can determine whether the head of the strip steel on the front piece is defective or not before rolling the strip steel on the front piece, and if the head is defective, the head is cut off and then the current mandrel of a coiling machine is utilized for coiling, so that the strip steel with the defect is prevented from being coiled by the sleeve, the using amount of the sleeve is reduced, and the production cost is reduced.

The technical solution of the present invention is further described in detail by the accompanying drawings and the specific embodiments.