阅读说明：本技术 重卷机组张力辊异物清理方法 (Foreign matter cleaning method for tension roller of rewinding unit ) 是由 肖胜 黄涛 陈柳军 常盈 周兴权 欧坪鑫 李丁英 甘长元 吕龙波 于 2020-07-17 设计创作，主要内容包括：本发明公开一种重卷机组张力辊异物清理方法,涉及卷板钢材生产领域。它包括先通过查看异物对带钢产生形状、大小、尺寸进行初步判定具体位置,然后按照重卷机组张力辊带钢穿带方向,对异物产生的凹凸情况做初步筛查,判断拉矫机前后对应区域张力辊,再通过在异物位置开孔倒车定位清理。本发明通过在线进行打孔倒车到固定位置,直接将异物进行取出,将大大降低了处理时间,也提高了清理位置的准确率,实现定点清理；在其他重卷机组线进行推广该清理方法,安全风险大大降低,将有效提高安全系数,整体效果显著。(The invention discloses a method for cleaning foreign matters on a tension roller of a recoiling unit, and relates to the field of production of rolled steel. It includes earlier through looking over the foreign matter to belted steel production shape, size carry out preliminary judgement concrete position, then according to recoiling unit tension roll belted steel threading direction, do preliminary screening to the unsmooth condition that the foreign matter produced, judge and draw and rectify the machine front and back and correspond regional tension roll, the rethread is in foreign matter position trompil location clearance of backing a car. According to the invention, the foreign matters are directly taken out by online punching and backing to a fixed position, so that the processing time is greatly reduced, the accuracy of cleaning the position is improved, and fixed-point cleaning is realized; by popularizing the cleaning method in other rewinding machine assembly lines, the safety risk is greatly reduced, the safety factor is effectively improved, and the overall effect is obvious.)

1. A foreign matter cleaning method for a tension roller of a recoiling unit is characterized by comprising the following steps:

the specific position is preliminarily judged by checking the shape, size and dimension of the strip steel, then according to the strip steel threading direction of the tension roller of the recoiling unit, the rough condition generated by the foreign matters is preliminarily screened, the tension rollers corresponding to the front and the back of the tension leveler are judged, and the strip steel is backed up and positioned and cleaned by opening holes at the position of the foreign matters.

2. The method for cleaning foreign matters in the tension roller of the rewinding unit as claimed in claim 1, wherein:

finding and marking the position on the surface of the embossed strip steel: and finding the bulge impressing position on the checking table, searching periodicity, confirming the bulge impressing position as the tension roller, and performing circle drawing confirmation on the bulge impressing position by using an aqueous pen.

3. The method for cleaning foreign matters in the tension roller of the rewinding unit as claimed in claim 2, wherein:

carrying out hole opening operation on the circle drawing position by using a hammer: and (4) adopting a sharp hammer to open the hole at the position of the picture ring, and cleaning the opened hole.

4. The method for cleaning foreign matters in the tension roller of the rewinding unit as claimed in claim 3, wherein:

after the foreign matter position on the surface of the band steel plate is marked and perforated, the band steel plate is automatically backed to a designated cleaning position through tension, and the foreign matter on the surface of the roller is searched and removed.

5. The method for cleaning foreign matters in the tension roller of the rewinding unit as claimed in claim 1, 2, 3 or 4, further comprising:

modifying the uncoiling tension of the uncoiler and the coiling tension of the coiler to ensure that the uncoiling tension value is greater than the coiling tension by 5kg/mm²And the tension of the process section is removed, so that automatic reversing is realized.

6. The method for cleaning foreign matter in the tension roller of the rewinding unit as claimed in claim 5, further comprising:

the uncoiling tension is 6kg/mm²The coiling tension is 0.5kg/mm²。

7. The method for cleaning foreign matter in the tension roller of the rewinding unit as claimed in claim 6, further comprising:

before backing a car, the frame of the circle shear is opened, and the strip steel edge wires are cut off.

Technical Field

The invention relates to the field of production of rolled steel plates, in particular to a method for cleaning foreign matters of a tension roller of a recoiling unit.

Background

The tension roller of the rewinding machine set in the finishing workshop of the cold rolling mill is a polyurethane rubber roller, when foreign matters such as broken edges of incoming materials, warping of skins or rewinding welding slag are brought into the surface of the tension roller embedded roller through strip steel, the foreign matters are embedded into the roller to cause the quality problem of a plate surface, the shutdown treatment is needed, the quality and the production efficiency are affected, and therefore the cleaning needs to be carried out timely. Because a plurality of rollers of the tension roller of the recoiling unit are wrapped by the strip steel, and the production specification width of the recoiling unit is continuously increased, the cleaning space of personnel is insufficient, and the cleaning of foreign matters on the roller surface of the tension roller is difficult; in addition, in the process of cleaning the wrapped tension roller, the strip steel needs to be loosened, and personnel stretch into the gap to treat foreign matters on the tension roller, so that great safety risk exists.

Disclosure of Invention

The invention provides a method for cleaning foreign matters on a tension roller of a recoiling unit, which is safe, convenient and efficient.

In order to solve the problems, the invention adopts the technical scheme that:

the method comprises the following steps:

the specific position is preliminarily judged by checking the shape, size and dimension of the strip steel, then according to the strip steel threading direction of the tension roller of the recoiling unit, the rough condition generated by the foreign matters is preliminarily screened, the tension rollers corresponding to the front and the back of the tension leveler are judged, and the strip steel is backed up and positioned and cleaned by opening holes at the position of the foreign matters.

In the above technical solution, a more specific technical solution may also be: finding and marking the position on the surface of the embossed strip steel: and finding the bulge impressing position on the checking table, searching periodicity, confirming the bulge impressing position as the tension roller, and performing circle drawing confirmation on the bulge impressing position by using an aqueous pen.

Further, the circle drawing part is subjected to hole opening operation by a hammer: and (4) adopting a sharp hammer to open the hole at the position of the picture ring, and cleaning the opened hole.

Furthermore, after the position of the foreign matter on the surface of the strip steel plate is marked and perforated, the strip steel plate is automatically backed to a designated cleaning position through tension, and the foreign matter on the surface of the roller is searched and removed.

Further, the uncoiling tension of the uncoiler and the coiling tension of the coiler are modified to ensure that the uncoiling tension value is greater than the coiling tension by 5kg/mm²And the tension of the process section is removed, so that automatic reversing is realized.

Further, the unwinding tension is 6kg/mm²The coiling tension is 0.5kg/mm²。

Furthermore, before backing a car, the frame of the circle shear is opened, and the strip steel edge wires are cut off.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the foreign matters are directly taken out by online punching and backing to a fixed position, so that the processing time is greatly reduced, the accuracy of cleaning the position is improved, and fixed-point cleaning is realized; by popularizing the cleaning method in other rewinding machine assembly lines, the safety risk of cleaning bulges is greatly reduced, the safety factor is effectively improved, and the overall effect is obvious.

2. The invention limits the magnitude of the uncoiling tension of the uncoiler and sets and increases the uncoiling tension to 6kg/mm²The winding tension is reduced to 0.5kg/mm²Ensuring that the uncoiling tension value is greater than the coiling tension by 5kg/mm²And the tension of the process section is removed, and automatic reversing is realized, so that the deviation of the reversing strip steel is avoided, and the abrasion of the reversing strip steel is eliminated.

3. Before backing a car, the frame of the circle shear is opened to cut off the strip steel edge wires, so that the circle shear is prevented from cutting the strip steel in a secondary backing car.

4. According to the invention, the garbage generated by the hole opening is timely cleaned after the hole opening is carried out at the foreign matter position, so that the damage to the strip steel at the hole opening position is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a rewinding machine set.

Detailed Description

The invention is further described in detail below with reference to the following examples:

as shown in fig. 1, the recoiling unit comprises an uncoiler 1, a welding machine 2, an inlet tension roller 3, a tension leveler 4, an outlet tension roller 5, a circle shear 6 and a recoiling machine 7 which are sequentially arranged on a conveying belt; wherein the inlet tension roller 3 and the outlet tension roller 5 are arranged on the same side of the conveying belt.