KR102153240B1 - Laser roll patterning machine and patterning method using thereof - Google Patents

Abstract

The present invention relates to roll patterning, and more particularly, to a laser roll patterning device and a patterning method using the same. To this end, the laser roll patterning device for forming a pattern by processing a surface of a roll device with a laser comprises: a layer means having partial pattern data in which a basic pattern (10) to be processed on a surface of a roll (100) is distributed and arranged for a plurality of layers; a control unit (300) for outputting an irradiation command of a laser by reading the partial pattern data in accordance with a predetermined order of the layers; and a laser generating means for forming a pattern by irradiating the surface of the roll (100) with a laser beam (210) in accordance with the irradiation command. According to the present invention, a high quality roll can be produced while maintaining high productivity.

Description

TECHNICAL FIELD The laser roll patterning machine and patterning method using the same

The present invention relates to roll patterning, and more particularly, to a laser roll patterning apparatus and a patterning method using the same.

The rolls used in the rolling mill are processed with laser patterns to produce rolled products. However, since the conventional pattern consists of mixing or repetition of simple straight lines, it was not possible to produce products with various patterns. That is, the conventional rolled product could only express a background pattern, anti-slip, and two-tone degree. In addition, the pattern was simple and repetitive, so thrust was generated on the friction surface during rolling. This thrust degrades the quality of the rolled product and acts as an unintended reaction force on the rolling mill, causing equipment failure.

To solve this problem, there have been attempts to process a complex pattern on the surface of the roll. However, trying to process a complex pattern at once, the laser beam continued to be concentrated in a narrow area. As a result, thermal energy is concentrated and the metal roll is denatured at high temperature or spatter or burr is accumulated on the processed roll surface, leading to shortening of the roll life and deterioration of rolling quality.

In addition, due to the delay that occurs when the conventional laser roll patterning system uses a general communication control method during laser control, the quality deterioration due to the communication delay when processing complex patterns, and to reduce the effect of the communication speed delay, the processing speed is reduced. There were problems leading to the decline of the company.

1. Korean Patent Publication No. 10-2015-0057522 (Laser processing system and laser processing method capable of continuous roll patterning).

Accordingly, the present invention was conceived to solve the above problems, and the object to be solved of the present invention is to disperse complex and elaborate patterns in a plurality of layers, and to perform laser control delay using a laser high-speed control module. It is to provide a laser roll patterning device capable of processing high-quality rolled rolls coated with a reduced complex pattern while maintaining high productivity, and a patterning method using the same.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

In order to achieve the above technical problem, in the laser roll patterning device for forming a pattern by processing the surface of the roll device with a laser, the basic pattern 10 to be processed on the surface of the roll 100 is distributed and arranged by a plurality of layers. Layer means having partial pattern data; A control unit 300 for reading partial pattern data according to a predetermined order of the plurality of layers and outputting a laser irradiation command; And a laser generating means for forming a pattern by irradiating the laser beam 210 on the surface of the roll 100 according to the irradiation command.

In addition, a motor 110 for rotating the roll 100; And a chuck 130 or a tailstock 120 supporting at least one of both ends of the roll 100.

In addition, the control unit 300 outputs an irradiation command in conjunction with the rotation of the motor 110 or the roll 100.

Further, the partial pattern data includes at least one of point data and straight line data.

In addition, the laser generating means is provided as many as the number of layers (n) to form a plurality of laser generating means, and each laser generating means and each of the layers are configured to correspond one-to-one. Optionally, even if a plurality of laser generating means is not formed by dividing the processing order of each layer as much as the number of layers n, it can be configured to generate various and complex patterns.

In addition, a plurality of laser generating means may be provided around the roll 100.

Optionally, a plurality of the rolls 100 are rotatably mounted and transported, further comprising a conveyor 330, and a plurality of laser generating means sequentially irradiates a laser beam to the rolls 100 on the conveyor 330 can do.

An object of the present invention is another category, as a panning method using the above-described laser roll patterning device, in which a control computer 370 provides a plurality of basic patterns 10 to be processed on the surface of the roll 100 in a layer means. Storing partial pattern data and processing schedule distributedly arranged for each layer; Reading the partial pattern data and the processing schedule according to a predetermined order of the plurality of layers, and outputting a laser irradiation command; And forming a pattern by irradiating a laser beam 210 on the surface of the roll 100 by the laser generating means according to the irradiation command. It is also achieved by a patterning method using a laser roll patterning device comprising: Can be.

In addition, between the data storage step and the output step of the laser irradiation command, the embedded module 350 generates a plurality of data packages by dividing the partial pattern data and the processing schedule; And sequentially transmitting, by the embedded module 350, a plurality of data packages to the control unit 300. It may further include.

In addition, the pattern forming step is a step in which each of the plurality of laser generating means irradiates a laser beam 210 to one roll 100.

Optionally, the pattern formation step may be a step of irradiating the laser beam 210 to the plurality of rolls 100, each of which is conveyed on the conveyor 330 by the plurality of laser generating means.

According to an embodiment of the present invention, high-quality rolling rolls can be processed by distributing and distributing complex and elaborate patterns in a plurality of layers. In particular, three-dimensional effect, natural beauty, gradation (gradation), shadow, contrast, black and white gray, etc., which have been recognized as difficult in conventional patterning, can be patterned on a roll by appropriately controlling laser output and processing speed. In addition, by mixing the line patterning method and the dot patterning method, a picture or photo including a background can be patterned.

In addition, as distributed patterning is performed for each layer, it is possible to reduce temperature variation of the roll during roll processing and minimize high-temperature denaturation.

In addition, by employing a high-speed control module capable of controlling laser irradiation at high speed when processing each layer, it is possible to secure stable patterning quality and high productivity by minimizing the delay due to the communication speed between the control computer and the laser controller.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

The following drawings appended in the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings. It is limited to and should not be interpreted.
1 is an example of a basic pattern 10 to be patterned on a roll in the present invention.
2A to 2C are examples of partial patterns in which the basic pattern 10 is distributed for each n layers.
3A is an example of a layered layer that appears when the partial patterns of FIGS. 2A to 2C are overlapped.
3B is an enlarged view of part A- in FIG. 3A.
4 is a perspective view illustrating a process of patterning the first processing line 150 by the laser head 200 in the laser roll patterning apparatus according to the first embodiment of the present invention.
5 is a perspective view illustrating a process in which the laser head 200 patterns the second processing line 160 on the roll 100 on which the first processing line 150 is patterned.
6 is a perspective view illustrating a process in which the laser head 200 patterns the third processing line 170 on the roll 100 on which the first and second processing lines 150 and 160 are patterned.
7 is a perspective view illustrating a process in which the laser head 200 patterns the fourth processing line 180 on the roll 100 on which the first, second, and third processing lines 150, 160, and 170 are patterned.
8 is a configuration diagram showing a state in which a plurality of laser heads 200a, 200b, 200c, and 200d are installed around one roll 100 in the laser roll patterning apparatus according to the second embodiment of the present invention.
9 is a laser roll patterning apparatus according to a third embodiment of the present invention, a plurality of rolls 100 are conveyed on a conveyor 330, and a plurality of laser heads 200a, 200b, 200c, 200d are spaced apart at regular intervals. It is a configuration diagram showing the installed state as possible.
10 is an example of a wood pattern pattern patterned by the laser roll patterning apparatus according to the present invention.
11 is an example of a rose flower pattern patterned by the laser roll patterning apparatus according to the present invention.
12A is an example of a pattern patterned by a dot patterning method in the laser roll patterning apparatus according to the present invention.
12B is another example of a pattern patterned by a dot patterning method in the laser roll patterning apparatus according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when it is mentioned that a component is "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between the constituent elements, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" refer to specified features, numbers, steps, actions, components, parts, or It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in a commonly used dictionary should be interpreted as having the meaning of the related technology in context, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

First Example of Configuration

Hereinafter, a configuration of a preferred embodiment will be described in detail with reference to the accompanying drawings. 1 is an example of a basic pattern 10 to be patterned on a roll in the present invention, and FIGS. 2A to 2C are examples showing a partial pattern in which the basic pattern 10 is distributed and arranged for each n layers.

As shown in FIGS. 1 to 2C, the basic pattern 10 is processed on the surface of the roll 100. 1 includes a square pattern 12, a triangular pattern 13, and an original pattern 15 in one basic pattern 10. 1 is only an example for explaining the gist of the present invention, and the basic pattern 10 to be actually applied may be the wood pattern pattern of FIG. 10 or the rose pattern of FIG. 11.

The basic pattern 10 is divided into first, second, ... n layers 20, 30, 40. Here, n is a natural number of 2 or more, and may range from 2 to 10 (or a number of 2 or more) depending on the content of the pattern and the background pattern.

The first layer 20 includes a first straight line 21 of the square pattern 12, a first straight line 23 of the triangular pattern 13, and a first straight line 24 of the original pattern 15. These straight lines 21, 23, and 24 mean the trajectory of the laser beam 210 on the roll 100. In the first layer 20, the first straight lines 21, 23, and 24 may form a partial pattern data set to form one file.

The second layer 30 includes a second straight line 31 of the square pattern 12, a second straight line 33 of the triangular pattern 13, and a second straight line 34 of the original pattern 15. These second straight lines 31, 33, and 34 are the trajectories of the laser beam 210 on the roll 100, and have a position offset with the first straight lines 21, 23 and 24 of the first layer 20. . In the second layer 30, the second straight lines 31, 33, and 34 may form a partial pattern data set to form one file.

The nth layer 40 includes the nth straight line 41 of the square pattern 12, the nth straight line 43 of the triangular pattern 13, and the nth straight line 44 of the original pattern 15. These nth straight lines 41, 43, 44 are the trajectories of the laser beam 210 on the roll 100, and the first and second straight lines 21, 23, and 24 of the first and second layers 20 and 30 , 31, 33, 34) and have a position offset. In the nth layer 40, the nth straight lines 41, 43, and 44 may form a partial pattern data set to form one file.

3A is an example of a stacked layer 50 that appears when the partial patterns of FIGS. 2A to 2C are overlapped, and FIG. 3B is an enlarged view of a portion A- in FIG. 3A. 3A and 3B are diagrams to help understand the subject matter of the present invention. As shown in FIG. 3B, a total of n straight lines 21, 31, and 41 are designed while maintaining an offset to form one square pattern 12. In order to form a uniform square pattern 12, the thickness of the n straight lines 21, 31, and 41 can be controlled by the diameter of the laser beam 210, and the offset can be controlled by the transfer interval.

FIG. 4 is a perspective view showing a process in which the laser head 200 patterns the first processing line 150 in the laser roll patterning apparatus according to the first embodiment of the present invention, and FIG. 5 is a patterned first processing line 150. A perspective view showing a process of the laser head 200 patterning the second processing line 160 on the roll 100, and FIG. 6 is a laser beam on the roll 100 patterned with the first and second processing lines 150 and 160. A perspective view showing a process in which the head 200 patterns the third overhead line 170, and FIG. 7 is a laser head on the roll 100 on which the first, second, and third overhead lines 150, 160, and 170 are patterned ( 200 is a perspective view illustrating a process of patterning the fourth overhead line 180.

As shown in FIGS. 4 to 7, the roll 100 has a cylindrical shape, and one end is supported by the chuck 130 and the other end is supported by the tailstock 120 for patterning processing. The motor 110 is a mechanical device that rotates the chuck 130 and the roll 100, and may be a constant speed motor, a forward and reverse rotation motor, a servo motor (eg, a brushless DC servo motor).

The laser generating means includes a laser generating device 220 and a laser head 200. The laser generating device 220 is a known configuration that intermittently generates and outputs a laser beam under the control of the controller 300. The laser head 200 is connected to the laser generator 220 and irradiates the received laser beam 210 onto the surface of the roll 100. The laser head 210 is a device that focuses and irradiates the laser beam 210, and is positioned by a linear servo motor, an XY robot, or the like, which is not shown. As shown in FIG. 4, the laser head 200 irradiates a laser beam 210 on the surface of the roll 100 that rotates constantly to etch the first processing line 150.

5 to 7, the rotation of the roll 100 by the motor 110 and the position control of the laser head 200 are interlocked so that the second, third, and fourth overhead lines 160, 170, 180 It is patterned sequentially.

The control unit 300 may be a computer, a microcomputer, a central processing unit (CPU), or the like, and has a built-in partial pattern data. The controller 300 may read partial pattern data and control the rotation of the motor 110, the position of the laser head 200, and the operation of the laser generating device 220.

Configuration of the second embodiment

Hereinafter, a configuration of the second embodiment will be described in detail with reference to the accompanying drawings. 8 is a configuration diagram showing a state in which four laser heads 200a, 200b, 200c, and 200d are installed around one roll 100 in the laser roll patterning apparatus according to the second embodiment of the present invention. As shown in FIG. 8, the four laser heads 200a, 200b, 200c, and 200d may be installed on the circumference of the roll 100 so as not to collide with each other. The four laser heads 200a, 200b, 200c, and 200d are controlled by the control unit 300, and may be connected to each of the laser generators 220. The four laser heads 200a, 200b, 200c, and 200d may be sequentially patterned one by one, patterned by two, divided into three and one, and all simultaneously patterned. Optionally, the number of laser heads 200 may be 2 to 8 or more.

Configuration of the third embodiment

Hereinafter, the configuration of the third embodiment will be described in detail with reference to the accompanying drawings. 9 is a laser roll patterning apparatus according to the third embodiment of the present invention, four rolls 100 are transferred on a conveyor 330, and a plurality of laser heads 200a, 200b, 200c, 200d are spaced apart at regular intervals. It is a configuration diagram showing the installed state as possible.

As shown in Fig. 9, four roll patterning devices are installed on the conveyed conveyor 330. Each roll patterning device is the same as that shown in FIG. 4. Thus, each of the four rolls 100 is transferred while rotating on the conveyor 330. Four laser heads 200a, 200b, 200c, and 200d are installed on the top of the conveyor 330 while maintaining a predetermined interval. The first laser head 200a patterns the first layer 20 and the second laser head 200b patterns the second layer 30, respectively. The conveyor 330 may be configured to operate intermittently so that the transfer is stopped during patterning, and the control unit 300 and the conveyor 330 may be selectively interlocked to enable patterning processing during transfer.

In the third embodiment as shown in FIG. 9, the first, second, third, and fourth laser heads 200a, 200b, 200c, and 200d may be connected to one controller 300, and the four controllers are the first. , 2, 3, and 4 laser heads (200a, 200b, 200c, 200d) may be configured by matching each. In this case, since only partial pattern data of the corresponding layer is mounted in each control unit, high productivity and replayability can be ensured. This is particularly effective for patterning large amounts of rolls 100.

In addition, for high-speed processing, it may be configured with a control computer 370, an embedded module 350, a control unit 300, and a laser generator 220. The control computer 370 is a computing device that can be implemented by a PC, PLC, or CNC, and stores and outputs parameters for processing (eg, laser processing data in the same manner as G-code) and processing schedule. The control computer 370 converts images and drawings into parameters and schedules suitable for processing and stores them.

The embedded module 350 commands high-speed processing according to processing parameters and processing schedules. The embedded module 350 divides the received parameters and processing schedule into small data packages and sequentially transmits them to the controller 300. In this case, the size of the package is determined so that the delay of the controller 300 does not occur or is minimized in consideration of the performance and communication speed of the controller 300. Through this, even when the controller 300 and the laser generating device 220 are in a processing state, the data package can be continuously received.

Example of action

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 1 to 4, the control unit 300 is a partial pattern in which the basic pattern 10 to be processed on the surface of the roll 100 is distributed and arranged for each of the first, second and n layers 20, 30, and 40. It is storing data and reading this data.

Then, the control unit 300 outputs a laser irradiation command based on the read partial pattern data of the first layer 20.

Then, the laser generator 220 forms a pattern by irradiating the laser beam 210 on the surface of the roll 100 according to the irradiation command of the control unit 300. At this time, the controller 300 controls the position of the laser head 200 and the rotation angle of the roll 100. That is, when processing of the first layer 20 is completed, the second layer 30 is processed based on the partial pattern data of the second layer 30. In this manner, the controller 300 sequentially outputs a laser irradiation command from the first layer 20 to the nth layer 40.

In the second embodiment as shown in FIG. 8, the first, second, third, and fourth laser heads 200a, 200b, 200c, 200d simultaneously or sequentially irradiate the laser beam 210 on one roll 100. .

And, in the third embodiment as shown in FIG. 9, the first, second, third, and fourth laser heads 200a, 200b, 200c, 200d in the process of conveying the conveyor 330 at a constant speed or intermittently are corresponding rolls ( 100) is simultaneously patterned.

10 is an example of a wood pattern pattern patterned by the laser roll patterning apparatus according to the present invention. As illustrated in FIG. 10, the wood pattern is composed of a combination of a thick line and a thin line, and by distributing it to a plurality of layers, a natural wood pattern pattern as shown in FIG. 10 can be finally patterned on the roll 100.

11 is an example of a rose flower pattern patterned by the laser roll patterning apparatus according to the present invention. As shown in FIG. 11, a basic pattern such as a rose, which is elaborate, complex, and has a three-dimensional effect, can be patterned on the roll 100 by distributing it in a plurality of layers.

12A is an example of a pattern patterned by the dot patterning method in the laser roll patterning apparatus according to the present invention, and FIG. 12B is another example of a pattern patterned by the dot patterning method in the laser roll patterning apparatus according to the present invention. As shown in FIGS. 12A and 12B, the size of the dot can be controlled by focusing of the laser beam 210, and the depth of the dot can be controlled by the output or duration of the laser beam 210. In addition, a line may be implemented as a pattern of continuous dots.

In the above-described embodiment of the present invention, a line patterning method is mainly illustrated and described, but it may be implemented by a dot patterning method as shown in FIGS. 12A and 12B, or a line patterning method and a dot patterning method may be mixed.

Detailed description of the preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and implement the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art may use the configurations described in the above-described embodiments in a manner that combines with each other. Thus, the invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the detailed description above should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, the embodiments may be configured by combining claims that do not have an explicit citation relationship in the claims, or may be included as new claims by amendment after filing.

10: basic pattern,
12: square pattern,
13: triangular pattern,
15: one pattern,
20: first layer,
21: square pattern first straight line,
23: triangular pattern first straight line,
24: original pattern first straight line,
30: second layer,
31: square pattern second straight line,
33: triangular pattern second straight line,
34: original pattern second straight line,
40: nth layer,
41: square pattern nth straight line,
43: triangular pattern nth straight line,
44: original pattern nth straight line,
50: laminated layer,
100: roll,
110: motor,
120: tailstock,
130: chuck,
150: first overhead line,
160: second overhead line,
170: third overhead line,
180: fourth overhead line,
200: laser head,
200a, 200b, 200c, 200d: 1st, 2nd, 3rd, 4th laser head,
210: laser beam,
220: laser generator,
300: control unit,
330: conveyor,
350: embedded module,
370: control computer.

Claims (10)

In the laser roll patterning device for forming a pattern by processing the surface of the roll device with a laser,
Layer means having partial pattern data in which the basic pattern 10 to be processed on the surface of the roll 100 is distributed and arranged for each of a plurality of layers;
A control computer (370) for storing and outputting parameters and processing schedules for processing the partial pattern data;
An embedded module 350 connected to the control computer 370 and sequentially transmitting the received parameters and processing schedules to a data package and sequentially transmitted to the control unit 300;
The control unit 300 outputting an irradiation command of the laser according to the data package; And
Including; a laser generating means for forming a pattern by irradiating a laser beam 210 on the surface of the roll 100 in accordance with the irradiation command; and
The laser generating means is provided as much as the number of layers (n) to form a plurality of laser generating means,
It is configured to correspond to each of the laser generating means and each layer on a one-to-one basis,
Further comprising a conveyor 330 to which a plurality of the rolls 100 are rotatably mounted and transferred,
The laser roll patterning device, characterized in that the plurality of laser generating means sequentially irradiate the laser beam to the roll (100) on the conveyor (330). The method of claim 1,
A motor 110 for rotating the roll 100; And
Laser roll patterning device, characterized in that it further comprises a chuck (130) or tailstock (120) for supporting at least one side of both ends of the roll (100). The method of claim 2,
The control unit 300 is a laser roll patterning apparatus, characterized in that to output the irradiation command in conjunction with the rotation of the motor (110) or the roll (100). The method of claim 1,
The partial pattern data includes at least one of point data and straight line data. delete The method of claim 1,
The laser roll patterning device, characterized in that the plurality of laser generating means is provided around the roll (100). delete A panning method using the laser roll patterning device according to any one of claims 1, 2, 3, 4, 6,
Storing, by a control computer 370, partial pattern data and a processing schedule in which the basic pattern 10 to be processed on the surface of the roll 100 is distributed and arranged by a plurality of layers in a layer means;
Generating, by the embedded module 350, a plurality of data packages by dividing the partial pattern data and the processing schedule;
Sequentially transmitting, by the embedded module 350, the plurality of data packages to the control unit 300;
Reading the partial pattern data and the processing schedule according to a predetermined order of the plurality of layers, and outputting a laser irradiation command; And
A step of forming a pattern by irradiating a laser beam 210 on the surface of the roll 100 by a laser generating means according to the irradiation command; and
The pattern forming step,
Each of the plurality of laser generating means is a step of irradiating the laser beam 210 to one of the roll 100, or
The patterning method using a laser roll patterning device, characterized in that the step of irradiating the laser beam (210) to the plurality of rolls (100), each of the plurality of laser generating means is conveyed on the conveyor (330).


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