KR102255519B1 - Slitting Monitoring System - Google Patents

Abstract

The present invention relates to a slitting monitoring system. More specifically, the slitting monitoring system includes: a slitter part cutting a thin film into a plurality of pieces in a moving direction to form individual thin films by using a plurality of slitter blades rotated in the same manner; a lighting part for radiating light to each side end part of each of the individual thin films; an image obtaining part for obtaining a side end part image of the corresponding individual thin films to which the light has been radiated by the lighting part; an image moving part for moving the image obtaining part from an upper side of the slitter part; and an inspection part detecting the width of the individual films and whether each side end part is defective by calculating a travel distance of the image moving part and each side end part image of the corresponding individual films measured by the image obtaining part. The image obtaining part obtains images of both side end parts of each of the individual films cut by the slitter part, in real time through the image moving part, and the inspection part receives a measurement signal of each of the image obtaining part and the image moving part to check the width of each of the individual films and whether there is a defect in real time to stop slitting work, which can lead to the minimization and prevention of defects, and can accurately check the width of the cut thin films, which can lead to an improvement in reliability.

Description

Slitting Monitoring System

The present invention relates to a slitting monitoring system, and more particularly, it is possible to check in real time images of both sides of an individual thin film to be slitting to check whether each width and each side is defective, thereby preventing and minimizing the defect rate, thereby improving reliability. It relates to a slitting monitoring system that can be improved.

In general, thin films such as various types of films are used in various devices for adhesion or protection purposes, and various types of thin films are used in devices such as mobile phones, semiconductors, TVs, displays, or automobiles.

Such a thin film is formed thin and wide and is cut into a plurality of pieces in the longitudinal direction and individually wound in the process of being transported, as disclosed in Patent Publication No. 10-2008-0046332.

As the thin film is moved so as to pass through a rotating rod equipped with a plurality of circular blades, it is cut into a plurality and wound.

However, since the thin film to be cut may not have a uniform straight line at both ends, there is a problem in that the thin films cut at one end and the other end are not uniform in width, resulting in a defect.

In addition, if there is a problem with the circular blade, the both ends of the cut thin film may not be cut neatly, and thus may be wound in a state in which burrs are generated.

These defects are confirmed in the process of being used after sales of the sold products, and there is a problem that not only consumers' complaints are amplified, but also product reliability is deteriorated.

Accordingly, there is an urgent need to develop a technology capable of preventing defects due to quick response and improving product reliability by enabling real-time confirmation of defects that may occur in slitting thin films.

Accordingly, the present invention has been devised to solve the above problems, and a slitter unit for forming an individual thin film by cutting a plurality of thin films in a moving direction by a plurality of slitter blades rotated equally, each cut An illumination unit for irradiating light to each side end portion of the individual thin film, an image acquisition unit for obtaining an image of the side end portion of the respective thin film irradiated with illumination by the illumination unit, and moving the image acquisition unit from the upper side of the slitter unit An image movable unit for calculating the image of each side end of the respective thin film measured by the image acquisition unit and a moving distance of the image movable unit to detect the width of the individual thin film and whether or not each side end is defective, And the image acquisition unit acquires images of both side ends of each individual thin film cut by the slitter unit by the image moving unit in real time, and the inspection unit receives each measurement signal of the image acquisition unit and the image moving unit, Its purpose is to provide a slitting monitoring system that can check the width of a thin film and whether it is defective in real time.

The present invention for achieving the above object is a slitter unit for forming an individual thin film by cutting a plurality of thin films in a moving direction by a plurality of slitter blades that are rotated equally, and lighting on each side end of each cut individual thin film An illumination unit for irradiating the light, an image acquisition unit for obtaining an image of the side end portion of the respective thin film illuminated by the illumination unit, an image moving unit for moving the image acquisition unit from the upper side of the slitter unit, and the image And an inspection unit that calculates an image of each side end of the respective thin film measured by the acquisition unit and a moving distance of the image moving unit to detect the width of the individual thin film and whether or not each side end is defective, and the image acquisition unit The moving unit acquires images of both ends of each individual thin film cut by the slitter unit in real time, and the inspection unit receives the measurement signals from the image acquisition unit and the image moving unit to determine the width and defects of each individual thin film in real time. Confirm.

Preferably, the lighting unit includes an upper illumination unit for irradiating illumination from the upper side of each individual thin film, and a lower illumination unit for irradiating illumination from the lower side of each individual thin film.

And each of the slitter blades are arranged in a plurality of pairs so as to cut one end and the other end of each of the individual thin films, and each pair is separated by a certain distance so that the adjacent two individual thin films are spaced apart from each other at a certain distance, and the most one end What is located at the one end of the thin film is cut at a location spaced apart from one end of the thin film to form one end of the individual thin film located at the most one side, and the one located at the other end of the thin film is at the other end of the thin film. The other end of the thin film is cut off at a position spaced apart from each other to form the other end of the individual thin film located on the other side.

In addition, the image acquisition unit is a camera, and the image moving unit includes an image base frame provided in a width direction so as to be positioned above each of the individual thin films cut by the slitter unit, a moving rail provided in the image base frame, the A movement control unit for controlling the position of the camera by having a camera and controlling the block driving unit according to the position of the moving block for moving along the moving rail, the block driving unit for moving the moving block, and the position of the slitter blade Includes,.

In addition, the inspection unit analyzes the image acquired with the camera to determine whether there is a defect at the side end of each individual thin film, and calculates a correction value to match by analyzing the position of the center of the image and one end of the individual thin film. And a width measuring unit that checks the moving distance of the moving block and calculates a distance between one end and the other end of the respective thin film, wherein the width measuring unit includes a position of the camera by the position correction unit. After is corrected, the width of the individual thin film is measured.

In addition, the width measurement unit includes a movement distance sensing unit, and the center of the image acquired by the camera by the movement control unit receiving the correction signal from the position correction unit and one end of the individual thin film are positioned on a vertical line. When the position of the camera is adjusted, it is set as the zero point of the movement distance sensing unit, and the camera is continuously moved to the other side of the respective thin film by the movement control unit, and the center of the image of the other end and the other end of the individual thin film coincide. Receives the measured value of the moving distance sensing unit at and calculates the width.

And the moving distance sensing unit is at least one of an encoder and a calibration.

And the image base frame is provided to be orthogonal to the transport direction of the thin film.

In addition, the image base frame is provided to be inclined at a predetermined angle with respect to the transport direction of the thin film.

In addition, the image base frame is provided on either the slitter unit or the fixed frame, and is rotatably provided by an angle adjusting unit.

In addition, the image base frame includes an image fixing frame fixed to one of the slitter unit or the fixed frame, and an image rotation frame provided to be rotatable of the image fixing frame and provided with the moving rail.

And the angle adjustment unit comprises a first angle adjustment block provided in the image fixing frame, a second angle adjustment block provided in the image rotation frame so as to be rotatable with the first angle adjustment block, and the second angle adjustment block. It includes a rotation drive unit that rotates in the first angle adjustment block.

In addition, the movement control unit controls the rotation drive unit to adjust the image acquisition portion of the camera according to the thin film transfer speed of the slitter unit, so that each side end portion of each individual thin film that is simultaneously cut by the slitter blades Acquire the image.

And a display unit for displaying the data calculated by the inspection unit.

In addition, it further includes a communication unit for transmitting and receiving the data calculated by the inspection unit through any one or more of wired and wireless.

As described above, according to the slitting monitoring system according to the present invention, when a defect occurs, it is possible to check in real time and stop the slitting operation to minimize and prevent the defect rate, and to accurately check the width of the cut thin film. It is a very useful and effective invention that can improve reliability.

1 is a diagram showing a slitting monitoring system according to the present invention,
2 is a view showing a slitter unit according to the present invention,
3 is a diagram showing an image acquisition unit and an image moving unit according to the present invention,
4 is a view showing an inspection unit according to the present invention,
5 is a diagram showing another embodiment of an image base frame according to the present invention,
6 is a diagram showing another embodiment of an image base frame according to the present invention,
7 is a diagram illustrating a slitting monitoring system further including a display unit and a communication unit according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION The detailed description to be disclosed below together with the accompanying drawings is intended to describe exemplary embodiments of the present invention, and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details to provide a thorough understanding of the invention. However, those of ordinary skill in the art to which the present invention pertains knows that the present invention may be practiced without these specific details.

In some cases, in order to avoid obscuring the concept of the present invention, well-known structures and devices may be omitted, or may be illustrated in a block diagram form centering on core functions of each structure and device.

Throughout the specification, when a part is said to "comprising or including" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. do. In addition, the term "... unit" described in the specification means a unit that processes at least one function or operation. In addition, "a or an", "one", "the" and similar related words are different from the present specification in the context of describing the present invention (especially in the context of the following claims). Unless indicated or clearly contradicted by context, it may be used in the sense of including both the singular and the plural.

In describing the embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout the present specification.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a diagram showing a slitting monitoring system according to the present invention, FIG. 2 is a view showing a slitter unit according to the present invention, and FIG. 3 is a view showing an image acquisition unit and an image moving unit according to the present invention. 4 is a view showing an inspection unit according to the present invention, FIG. 5 is a view showing another embodiment of an image base frame according to the present invention, and FIG. 6 is another embodiment of an image base frame according to the present invention. It is a diagram showing an example, and FIG. 7 is a diagram illustrating a slitting monitoring system further including a display unit and a communication unit according to the present invention.

As shown in the drawing, the slitting monitoring system includes a slitter unit 100, a lighting unit 200, an image acquisition unit 300, an image moving unit 400, and an inspection unit 500.

The slitter part 100 is formed into an individual thin film 2 by cutting a plurality of thin films 1 in a moving direction by a plurality of slitter blades 110 that are rotated equally.

And the lighting unit 200 is provided to irradiate light to each side end (2a, 2b) of each cut individual thin film (2).

The image acquisition unit 300 is provided to acquire an image of the side end portions 2a and 2b of the respective thin film 2 illuminated by the illumination unit 200.

In addition, the image moving unit 400 is provided to move the image acquisition unit 300 from the upper side of the slitter unit 100.

The inspection unit 500 calculates the image of each side end of the respective thin film 2 measured by the image moving unit 400 and the moving distance of the image moving unit 400 to determine the width of the individual thin film 2 and each side end. Detect whether there is a defect.

Looking at the operating state of this slitting monitoring system, the image acquisition unit 300 is an image of both side ends (2a, 2b) of each individual thin film 2 cut by the slitter unit 100 by the image moving unit 400 Is acquired in real time.

The inspection unit 500 receives measurement signals from the image acquisition unit 300 and the image transfer unit 400 and checks the width and defects of each individual thin film 2 in real time.

Accordingly, it is possible to check in real time whether the width of each individual thin film 2 is different from the set width or whether a burr is generated in each side end portion 2a, 2b.

Here, if the width of each individual thin film (2) is different from the set width, the arrangement of the slitter blade is incorrect, and if burrs are generated in each side end (2a, 2b), the slitter blade is damaged. Or it means it becomes dull and needs to be replaced.

Accordingly, by stopping the operation of the slitter unit 100, the defective individual thin film 2 is prevented from being wound into a product, thereby preventing defects.

For this, the lighting part 200 includes an upper lighting part 210 and a lower lighting part 220.

The upper lighting part 210 irradiates lighting from the upper side of each individual thin film 2, and the lower lighting part 220 irradiates lighting from the lower side of each individual thin film 2.

In other words, the upper and lower lighting units 210 and 220 are provided on the upper and lower sides of the individual thin films 2, respectively, or are provided in plurality to irradiate illumination to obtain an accurate image.

The upper lighting part 210 and the lower lighting part 220 are provided to irradiate light in a linear direction to a portion to be acquired by the camera.

As an example, the upper lighting part 210 is provided to irradiate light in the image acquisition direction of the camera, and the lower lighting part 220 is provided with a backlight having a predetermined length.

And, as shown in Figure 2, each slitter blade 110 is arranged in a plurality of pairs so as to cut one end (2a) and the other end (2b) of each individual thin film (2).

In other words, adjacent two individual thin films 2 and 2'are arranged to be spaced apart from each other by a predetermined interval, so that each pair is spaced apart from each other by a predetermined interval.

In addition, one blade of the slitter blade positioned at the most one end cuts one end of the thin film at a position spaced apart from one end of the thin film 1 at a predetermined interval to form one end of the individual thin film positioned at the most one side.

The other edge of the slitter blade positioned at the other end of the thin film 1 cuts the other end of the thin film at a location spaced apart from the other end of the thin film 1 to form the other end of the individual thin film positioned at the other end.

This is to prevent defects from occurring because the corresponding side ends of the cut individual thin films 2 are not formed in a straight line when one end and the other end of the transferred thin film 1 are not in a straight line.

Accordingly, each individual thin film 2 is cut to have a certain width, thereby improving reliability.

And, as shown in Figure 3, the image acquisition unit 300 is a camera 310, the image moving unit 400 is an image base frame 410 and a moving rail 420, a moving block 430, a block driving unit (440) and a movement control unit 460.

The image base frame 410 is provided in the width direction of the thin film 1 so as to be positioned above the individual thin films 2 cut by the slitter unit 100.

In addition, the moving rail 420 is provided along the longitudinal direction of the image base frame 410.

The moving block 430 is provided with a camera 310 and is provided to move along the moving rail 420.

In addition, the block driving unit 440 is provided to move the moving block 430, and it is natural that it can be used as long as it is a configuration capable of moving the moving block 430 by a rotational force.

The movement control unit 460 is provided to control the position of the camera 310 by controlling the block driving unit 440 according to the position of the slitter blade 110.

As shown in FIG. 4, the inspection unit 500 includes a defect detection unit 510, a position correction unit 520, and a width measurement unit 530.

The defect detection unit 510 analyzes the image acquired by the camera 310 and checks whether or not the side ends 2a and 2b of each individual thin film 2 are defective.

In addition, the position correction unit 520 analyzes the position of the center of the image and the position of one end portion 2a of the individual thin film and calculates a correction value to match.

The width measuring unit 530 checks the moving distance of the moving block 430 and calculates the distance between one end and the other end of the respective thin film.

The width measurement unit 530 measures the width of the respective thin film 2 after the position of the camera 310 is corrected by the position correction unit 520, and includes a movement distance sensing unit 532. .

The width measurement unit 530 includes the center of the image acquired by the camera 310 by the movement control unit 460 receiving the correction signal from the position correction unit 520 and one end 2a of the individual thin film 2 When the position of the camera 310 is adjusted to be positioned on a vertical line, it is set to the zero point of the moving distance sensing unit 532.

Subsequently, the camera 310 moves to the other side of the individual thin film 2 by the movement control unit 460 and senses the movement distance at a position where the center of the image of the other end and the other end 2a of the individual thin film coincide As the signal from the unit 532 is received and calculated, the width is measured.

In addition, by applying this process to other adjacent individual thin films in the same manner, measuring the width of each individual thin film and comparing it with a preset width, it is possible to check in real time whether there is a defect.

The moving distance sensing unit 532 includes at least one of an encoder and a calibration.

Here, the image base frame 410 is provided so as to be orthogonal to the transport direction of the thin film 1.

Accordingly, since the camera 310 can be moved in the width direction of the thin film, a plurality of cut individual thin films can be sequentially photographed to obtain an image of each one end portion and each other end portion.

Meanwhile, as shown in FIG. 5, as another embodiment of the image base frame 410 ′, it is provided to be inclined at a certain angle with respect to the transport direction of the thin film 1.

In other words, in order to obtain an image of each side end portion at the same position of all the individual thin films 2 that are simultaneously cut by the slitting blades 110, the inclination angle is formed to correspond to the transport speed of the thin film.

In addition, as shown in FIG. 6, the image base frame 410" of another embodiment is rotatably provided by the angle adjusting part 470".

This image base frame 410" is provided in either the slitter part 100 or a separate fixed frame and rotated by the angle adjusting part 470".

To this end, the image base frame 410" includes an image fixing frame 412" and an image rotation frame 414".

The image fixing frame 412" is fixed to either the slitter unit 100 or the fixed frame.

In addition, the image rotation frame 414" is rotatably provided on the image fixing frame 412", and a moving rail 420 is provided.

In addition, the angle adjusting unit 470" includes a first angle adjusting block 472", a second angle adjusting block 474", and a rotation driving part 476".

The first angle adjustment block 472" is provided in the image fixing frame 412".

In addition, the second angle adjustment block 474" is provided in the image rotation frame 414" so as to be rotatable to the first angle adjustment block 472".

The rotation driving part 476" rotates the second angle adjustment block 474" in the first angle adjustment block 472".

According to this angle adjustment unit 470", the movement control unit 460 controls the rotation drive unit 476" according to the thin film transfer speed of the slitter unit 100 to adjust the image acquisition position of the camera 310 , To obtain an image of each side end portion of each individual thin film 2 that is simultaneously cut by the slitter blades 110.

In other words, depending on the type of thin film, the feed rate is different, and the angle of the image rotation frame 414" can be adjusted accordingly, so that a single slitter unit 100 can perform real-time inspection of various types of thin films. .

In addition, the slitting monitoring system further includes a display unit 600 and a communication unit 700 as shown in FIG. 7.

The display unit 600 is provided to display data calculated by the inspection unit 500.

The display unit 600 is a display device such as a monitor so that the operator can check the inspection status in real time.

In addition, the communication unit 700 is provided to transmit and receive data calculated by the inspection unit 500 through wired or wireless one or more, and transmits information to a portable terminal of a worker, an administrator, and a person concerned.

Also, the communication unit 700 transmits and stores real-time information to a database.

100: slitter part 200: lighting part
300: image acquisition unit 400: image moving unit
500: inspection unit 600: display unit
700: communication department

Claims (10)

A slitter unit for forming an individual thin film by cutting a plurality of thin films in a moving direction by a plurality of slitter blades that are rotated equally;
An illumination unit for irradiating illumination to each side end portion of each of the cut individual thin films;
An image acquisition unit for acquiring an image of a side end portion of the respective thin film irradiated with illumination by the lighting unit;
An image moving unit for moving the image acquisition unit from the upper side of the slitter unit; And
And an inspection unit that calculates the image of each side end of the respective thin film measured by the image acquisition unit and a moving distance of the image moving unit to detect the width of the individual thin film and whether or not each side end is defective, and
The image acquisition unit acquires real-time images of both side ends of each individual thin film cut by the slitter unit by the image moving unit,
The inspection unit receives the measurement signals of the image acquisition unit and the image moving unit and checks the width and defects of each individual thin film in real time,
The image acquisition unit is a camera,
The image moving part,
An image base frame provided in the width direction so as to be positioned above each of the individual thin films cut by the slitter unit;
A moving rail provided in the image base frame;
A moving block provided with the camera and moving along the moving rail;
A block driving unit for moving the moving block; And
Including; a movement control unit for controlling the position of the camera by controlling the block driving unit according to the position of the slitter blade,
The inspection unit,
A defect detection unit that analyzes the image acquired by the camera and checks whether or not there is a defect at the side end of each individual thin film;
A position correction unit for calculating a correction value to match by analyzing the position of the center of the image and one end of the individual thin film; And
Including; a width measuring unit that checks the moving distance of the moving block and calculates the distance between one end portion and the other end portion of the respective thin film,
The width measurement unit measures the width of the respective thin film after the position of the camera is corrected by the position correction unit,
The width measurement unit,
It includes a moving distance sensing unit,
When the position of the camera is adjusted so that the center of the image acquired by the camera and one end of the individual thin film are positioned on a vertical line by the movement control unit receiving the correction signal from the position correction unit, the movement distance sensing unit is returned to the zero point. Set up,
The camera continuously moves to the other side of the respective thin film and calculates the width by receiving the measurement value of the moving distance sensing unit at a position where the center of the image of the other end and the other end of the individual thin film coincide. Slitting monitoring system. The method of claim 1, wherein the lighting unit,
An upper lighting unit for irradiating illumination from the upper side of each of the individual thin films; And
Slitting monitoring system comprising; a bottom lighting unit for irradiating light from the lower side of each of the individual thin films. The method of claim 1, wherein each of the slitter blades,
Arranged in a plurality of pairs so as to cut one end and the other end of each of the individual thin films,
Each pair is spaced at a certain interval so that the adjacent two individual thin films are spaced apart from each other at a certain interval,
The one located at the most one end is to cut one end of the thin film at a position spaced apart from one end of the thin film to form one end of the individual thin film located at the most one side,
The slitting monitoring system, characterized in that positioned at the other end of the thin film cuts the other end of the thin film at a position spaced apart from the other end of the thin film at a predetermined interval to form the other end of the individual thin film positioned on the other side of the thin film. delete delete delete The method of claim 1, wherein the image base frame,
Slitting monitoring system, characterized in that provided to be orthogonal to the transport direction of the thin film. The method of claim 1, wherein the image base frame,
Slitting monitoring system, characterized in that provided to be inclined at a certain angle based on the transport direction of the thin film. The method of claim 1, wherein the image base frame,
A slitting monitoring system, characterized in that provided on either the slitter unit or the fixed frame, and rotatably provided by an angle adjusting unit. The method of claim 1,
A slitting monitoring system further comprising a display unit for displaying the data calculated by the inspection unit.

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