阅读说明：本技术 激光刻痕机在拉伸平整退火机组上动态同步刻痕的应用 (Application of laser scoring machine in dynamic synchronous scoring on stretching flattening annealing unit ) 是由 刘鹏程 刘宝志 张嘉声 张艳芳 王强 李刚 胡强 李艳霞 于 2020-06-02 设计创作，主要内容包括：本发明克服了现有技术存在的不足,提供了一种激光刻痕机在拉伸平整退火机组上动态同步刻痕的应用,为了解决上述技术问题,本发明采用的技术方案为：激光刻痕机在CT线上不同工艺速度下动态同步刻痕的应用,包括由上料开卷机、清洗段、第一烘干段、涂层机组、第二烘干段、加热段、冷却段、活套、张力机、测磁仪和收卷机依次相连形成的CT生产线,所述CT生产线上设置有激光刻痕机,所述激光刻痕机位于张力机和测磁仪之间,所述激光刻痕机的多个激光头交替刻痕确保取向硅钢带同步动态刻痕,通过调整所述激光刻痕机的多个激光头的高度控制刻痕宽幅,调整所述激光刻痕机的多个激光头的焦距控制刻痕深度,及控制多个激光头相应时间来满足刻痕间隔要求。(The invention overcomes the defects of the prior art, provides the application of the laser scoring machine in the dynamic synchronous scoring of the stretching flattening annealing unit, and adopts the following technical scheme in order to solve the technical problems: the application of dynamic synchronization nick under different process speeds of laser nicking machine on CT line includes by material loading decoiler, washing section, first stoving section, coating unit, second stoving section, heating section, cooling zone, loop, tensioner, magnetism measuring instrument and the CT production line that the rolling machine links to each other in proper order and forms, be provided with the laser nicking machine on the CT production line, the laser nicking machine is located between tensioner and the magnetism measuring instrument, the synchronous dynamic nick in orientation silicon steel area is ensured in the alternate nick of a plurality of laser heads of laser nicking machine, through the adjustment the height control nick broad width of a plurality of laser heads of laser nicking machine adjusts the focus control nick degree of depth of a plurality of laser heads of laser nicking machine to and control a plurality of laser head corresponding time and satisfy the nick interval requirement.)

1. The application of dynamic synchronous nicking of laser nicking machine on stretch leveling annealing unit includes CT production line that is formed by material loading decoiler, washing section, first stoving section, coating unit, second stoving section, heating section, cooling section, loop, tensioner, magnetism measuring instrument and rolling machine link to each other in proper order, its characterized in that, be provided with the laser nicking machine on the CT production line, the laser nicking machine is located between tensioner and the magnetism measuring instrument, the synchronous dynamic nicking of orientation silicon steel area is ensured to the alternate nicking of a plurality of laser heads of laser nicking machine, through the adjustment the height control nicking broad width of a plurality of laser heads of laser nicking machine adjusts the focus control nicking degree of depth of a plurality of laser heads of laser nicking machine to and the corresponding time of a plurality of laser heads of laser head of control nicking interval requirements are satisfied.

2. The application of the laser scoring machine in the dynamic synchronous scoring on the stretching and flattening annealing unit according to claim 1 is characterized in that the laser scoring machine is a fiber laser, and the running speed of the oriented silicon steel strip is 20-120 m/min.

3. The application of the laser scoring machine in the dynamic synchronization scoring of the stretch leveling annealing unit according to claim 1, wherein speed signals of a plurality of laser heads of the laser scoring machine are all from encoders on rollers of a tension machine on a CT line, and the speed output by the encoders controls the light emitting time and duration of the corresponding laser heads, so that the scoring at the interval of 2-8mm is finally formed on the oriented silicon steel strip.

4. The application of the laser scoring machine in dynamic synchronous scoring on a stretching and flattening annealing unit according to claim 1, wherein a dust removing device is arranged on the laser scoring machine and used for removing dust generated by scoring.

Technical Field

The invention discloses application of a laser scoring machine in dynamic synchronous scoring on a stretching, flattening and annealing unit, and belongs to the technical field of oriented silicon steel production equipment.

Background

Oriented silicon steel is widely used as a soft magnetic material in the field of power industry, has the characteristics of large investment, long manufacturing process route, complex process flow, multiple performance influencing factors and the like, and the manufacturing process and the product performance quality are one of important marks for measuring the national special steel production and scientific and technological development level, so the oriented silicon steel is called as a 'handicraft article' in steel products.

The performance of the oriented silicon steel sheet is directly related to the loss of electric energy, the performance, the volume, the mass and the saving of various materials of a transformer and other products, and the laser scoring technology is one of the forms of the oriented silicon steel magnetic domain refining technology and can directly reduce the iron loss of the oriented silicon steel product, thereby improving the magnetic performance of the oriented silicon steel product. The current oriented silicon steel product with laser nicking adopts carbon dioxide or fiber laser to refine magnetic domain treatment under the working condition of a static or independent production line, the iron loss is reduced by about 10 percent by the static laser nicking mode, the production line speed is limited by nicking, thereby greatly limiting the productivity, and the problems of large occupied area, large investment, slow effect and the like exist.

Disclosure of Invention

The invention overcomes the defects in the prior art and provides the application of the optical fiber laser scoring machine in dynamic synchronous scoring of the stretching, flattening and annealing unit at different process speeds.

In order to solve the technical problems, the invention adopts the technical scheme that: application of dynamic synchronization nick of laser nicking machine on tensile level annealing unit includes by material loading decoiler, washing section, first stoving section, coating unit, second stoving section, heating section, cooling zone, loop, tensioner, survey magnetism appearance and rolling machine CT production line that links to each other in proper order and form, be provided with the laser nicking machine on the CT production line, the laser nicking machine is located between loop and the survey magnetism appearance, the synchronous dynamic nick of orientation silicon steel area is ensured to the alternate nick of a plurality of laser heads of laser nicking machine, through control the height of a plurality of laser heads of laser nicking machine and corresponding time control nick broad width and nick interval.

The laser scoring machine is a fiber laser, the speed of the oriented silicon steel strip is higher than 40m/min, and the speed is dynamically adjusted according to the process speed of a production line.

The speed signals of a plurality of laser heads of the laser scoring machine are all from encoders on tension machine rollers on a CT line, the light emitting time and the time length of the corresponding laser heads are controlled through the speed output by the encoders, and finally, scores with the interval of 2-8mm are formed on the oriented silicon steel strip.

And the laser scoring machine is provided with dust removal equipment for removing dust generated by scoring.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the laser scoring machine is arranged on the CT line, and the fiber laser is adopted, so that the scoring depth is increased, the scoring speed is accelerated, the scoring speed is further improved by arranging the plurality of laser heads on the laser scoring machine, and the oriented silicon steel strip can ensure the scoring effect while the production speed is improved by the mutual matching of the plurality of laser heads, so that the quality of the oriented silicon steel product is improved, and the market competitiveness of company products is finally improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, the application of the laser scoring machine in dynamic synchronous scoring on a stretching and leveling annealing unit comprises a CT production line (the CT production line is a stretching and leveling annealing unit) formed by sequentially connecting a feeding uncoiler, a cleaning section, a first drying section, a coating unit, a second drying section, a heating section, a cooling section, a loop, a tensioner roller, a magnetism measuring instrument and a coiling machine, wherein the CT production line is provided with the laser scoring machine, the laser scoring machine is positioned between the loop and the magnetism measuring instrument, a plurality of laser heads of the laser scoring machine alternately score to ensure synchronous dynamic scoring of an oriented silicon steel strip, the width of the scoring is controlled by adjusting the heights of the plurality of laser heads of the laser scoring machine, the depths of the scoring are controlled by adjusting the focal lengths of the plurality of laser heads of the laser scoring machine, and the corresponding time of the plurality of laser heads is controlled to meet the requirement of scoring intervals.

The laser scoring machine is a fiber laser, the laser scoring machine spans on a CT line, a plurality of laser heads are sequentially arranged along the operation direction of the CT line, the height of each laser head is adjustable, the width of a score is adjusted through the height of the adjusted laser head, after the running speed of the oriented silicon steel is calculated by an encoder on a tension machine roller, each laser head can be controlled through a computer control center or a PLC module, each laser head can synchronously move and also can move independently, the computer control center controls the starting time and the working interval of each laser head according to the running speed of the oriented silicon steel, the oriented silicon steel below the laser heads is scored, the laser heads finally form scratches spaced in sequence on the oriented silicon steel, and the interval of the scratches reaches 2-8 mm.

Through the mutual matching of the laser heads, the speed of the oriented silicon steel strip is easily higher than 40m/min, the linear speed of the original CT line can easily reach 60m/min and even can reach or exceed 120m/min after the laser online scoring transformation is carried out according to the invention, the production efficiency is greatly improved, and the productivity is submitted.

The scoring speed of the laser scoring machine and the strip speed of the oriented silicon steel strip cannot reduce the strip speed of the oriented silicon steel strip, and on the contrary, the strip speed of the oriented silicon steel strip can be increased by increasing the number of the laser heads, the actions of the laser heads in the invention are realized by controlling the laser heads to work by a computer program after the strip speed is obtained by an encoder on the tension roller, and how to make a plurality of laser heads score each other and finally score scratches with equal intervals on the oriented silicon steel strip, and technicians in the field can easily write a calculation formula by using mathematical knowledge.

The speed signals of a plurality of laser heads of the laser scoring machine are all from encoders on tension machine rollers on CT lines, the light emitting time and the time length of the corresponding laser heads are controlled through the speed output by the encoders, and finally, scores with the interval of 2-8mm are formed on the oriented silicon steel strip.

And the laser scoring machine is provided with dust removal equipment for removing dust generated by scoring.

The CT line has the functions of ensuring that the insulating layer can be annealed without falling off after stress relief under the process conditions of coating the insulating layer on the surface of the steel strip and performing hot stretching flattening, and when the CT line is operated under the set tension under the conditions of different process speeds of different process sections, after the CT line is provided with the laser scoring machine, magnetic domains can be thinned after scoring under the conditions of different process speeds, the quality performance is improved after 14 percent of iron loss is reduced, the product quality is improved after the CT line is operated under the working condition, and the production process is optimized, so that the productivity is improved.

According to the invention, the loss of finished products with different grades is reduced by 14.5%, synchronous notching is carried out under the operation of different process speeds on a CT line, and the notching is carried out under the set tension on the CT line.

The invention has the advantages that the scoring machine arranged on the CT line is a fiber laser, the power is high, the scoring depth is relatively deep, the magnetic domain refining effect is good,

the laser scoring machine is positioned between the tension machine and the magnetism measuring instrument, so that the iron loss change on the magnetism measuring instrument can be observed in real time after scoring is considered, and the laser scoring data can be adjusted conveniently. The laser scoring machine is placed on the CT line because the CT line product is already the finished product of the oriented silicon steel and the magnetic induction and the iron loss performance are determined. The fiber laser machine provided by the invention nicks a steel strip to generate dust, because the dust is high in density and fine in particle, the dust is collected in a centralized manner and then is processed by environment-friendly dust removing equipment, the light emitting time of each laser on the electronic intelligent nicking machine is calculated according to the process speed of a production line, and when the light is emitted, the light is calculated by a control system according to the output speed of an encoder on a tension roller on a CT line and then is emitted.

The hydraulic shear and the sewing machine are respectively used for cutting edges of the ends of the oriented silicon steel strips and connecting the two adjacent oriented silicon steel strips.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.