WO2012115389A2

WO2012115389A2 - Device for slitting

Info

Publication number: WO2012115389A2
Application number: PCT/KR2012/001170
Authority: WO
Inventors: 조원익
Original assignee: (주)에스와이리더
Priority date: 2011-02-25
Filing date: 2012-02-16
Publication date: 2012-08-30
Also published as: KR101249490B1; WO2012115389A3; KR20120097846A

Abstract

The present invention relates to a device for slitting, and more specifically, to a device for slitting a product that is continuously transferred in the direction of transfer, comprising: a transfer unit, having a transfer frame on which a product is mounted and transferred, for transferring the product that is mounted on the transfer frame from one side to the other side; a laser beam generator, which is provided on the transfer frame, for generating a laser beam for slitting the product; a cutting head, which is installed on the transfer frame, for irradiating the laser beam generated by the laser beam generator on the product so as to cut the product at a predetermined width along the direction of transfer; and a detector, which is installed on the transfer frame, for measuring the size of the product, detecting the measurement for the widthwise or lengthwise directions of the product using the positions of end portions on both sides of the product, the positions verified by verifying each of the ends on the both sides of the product, or for detecting the length of a sectional portion of the product using the positions of the end portions on the both sides of the product, the length of the sectional portion of the product verified by verifying both end portions of the sectional portion of the product. According to the present invention, by measuring the size of the product in real-time by means of the detector that verifies the position of the both ends of the product and cutting the product using the cutting head, all of the portions of the product being cut can be measured to detect defective portions, thereby reducing the defect rate of the finished product that is cut.

Description

Slitting device

The present invention relates to a slitting device, and more particularly to a slitting device capable of cutting a product to a set width while measuring the dimensions of the product to be continuously conveyed.

In general, the slitting device is a device that cuts continuously supplied products in a longitudinal direction to have a constant width, and is used in various fields, and one example of the applied field is processing a product such as a thin film for manufacturing a display panel. There is a field.

In general, a display panel including a liquid crystal, an LED, or a PDP module is attached to a thin film for displaying an image by polarizing illumination light emitted from pixels of the panel. The thin film is wound on a winding roll and provided in the form of a fabric, and then unwound in the winding roll and cut into a width set by a laser slitting machine. Then, the cut thin film is wound to another winding roll in the form of a fabric is provided in the process of cutting into a square shape suitable for the size of the display panel. Therefore, the thin film is finally processed into a form that can be attached to the display panel.

Since such thin films are used in display panels, they require ultra-precision, so the defective rate of the finished product is lowered only when accurate dimensions are measured.

However, the conventional laser slitting machine cuts the thin film film wound on the winding roll as a whole by measuring the width of the thin film by three-dimensional measurement. The thin film is partially surplus, such as a burr, or a set width. If there is a shortage of defective parts, there is a problem that the defective rate of the finished product increases because the defective part can not be confirmed.

Therefore, there is an urgent need for an apparatus capable of measuring in real time the dimensions of the width and length of the thin film continuously transferred.

The present invention was created in order to solve the above-mentioned problems of the prior art, and after cutting or precisely measuring the dimensions of the thin film film continuously conveyed while being unwinded from the take-up roll for longitudinal slitting, or cut the thin film It is an object of the present invention to provide a slitting device capable of detecting a defective portion of a thin film by measuring the dimensions of the film.

One aspect of the present invention for achieving the above object is, in the apparatus for slitting a product to be continuously conveyed in the conveying direction, having a conveying frame to which the product is conveyed, mounted on the conveying frame Transfer unit for continuously conveying the product from one side to the other side; A laser beam generator provided in the transfer frame and generating a laser beam for slitting the product; A cutting head installed in the transfer frame, for cutting the product into a width set along a conveying direction by irradiating the product with the laser beam generated by the laser beam generator; And installed in the conveying frame to measure the dimensions of the product, by detecting the end of the width or length direction of the product through the position of the both ends identified by checking each end of the product, respectively, or a part of the product And a detector for detecting a distance of a partial section on the product through the positions of the identified end portions by checking both end portions of the section.

The slitting apparatus according to the present invention is provided with a detector for checking the position of both ends of the product, measuring the dimensions of the product continuously supplied in real time and cutting through the cutting head, thereby measuring all the parts of the product to remove the defective part Since it can be detected, the defective rate of the cut finished product can be reduced.

In addition, the detector checks the end position of the product through the camera and the display to detect the absolute dimension through the operation unit, it is possible to accurately detect the absolute dimension of the product.

In particular, the end distance detecting means detects the end distance through the number of pixels of the display disposed between the reference line of the display and the product end, so that the end distance can be measured more precisely.

In addition, since the camera moves to both ends of the product by the slider moving means together with the slider, it can flexibly correspond to the width of the product.As the moving distance of the camera is detected by the moving distance detecting means, Dimensions can be measured.

In addition, since the moving distance detecting means checks the moving position of the slider through the linear scale and the scale head, the moving distance of the camera can be detected without flow.

In addition, since the slider moving means is composed of a stator and a mover for providing an electromagnetic force to move the slider, the precision of the linear movement of the slider can be improved.

In addition, the installation error of the camera with respect to the slider is detected by the error detection means and provided to the calculation unit. Can be.

Moreover, since the cutting head can move in the conveying direction of the product or the width direction of the product by the driver, it can cut while actively responding to the size or shape of the product.

Specifically, since the cross slider to which the cutting head is coupled moves along the longitudinal direction of the cross rail provided in the motion frame, the motion frame moves along the conveying direction of the product, and thus the cutting head may be stably moved to the set position.

In addition, since the cross slider moves along the longitudinal direction of the cross rail by a cross moving unit composed of a lead screw and a driving motor, the cutting head can move in a direction different from the product feeding direction. In addition, the motion frame moving unit is linear. It consists of a rail and a linear motor, so that the motion frame can move stably while the cutting head can move along the product's feed direction.

1 is a schematic view showing a slitting device according to the present invention.

2 is a perspective view showing a slitting device according to the present invention.

3 is a perspective view showing the driver shown in FIG.

4 is a perspective view illustrating the detector illustrated in FIG. 2.

5 is a plan view showing a slitting device according to the present invention.

FIG. 6 is a partially enlarged view illustrating the detector illustrated in FIG. 5. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of related well-known general functions or configurations are omitted.

1 and 2, the slitting apparatus according to the present invention comprises a transfer unit 3, a laser beam generator 5, and a cutting head 10 and a detector 20. As shown in FIG.

The transfer unit 3 has a transfer frame 1 on which a product F such as a thin film applied to a display panel is mounted, and continuously transfers the product F mounted on the transfer frame 1. 1 and 2 to provide a support skeleton by forming an outer body, it is installed on a processing line for cutting the product (F).

The transfer frame 1 is provided with a winding roller 1a on which a product F in the form of a fabric is wound on one side, and a catcher roller 1b on which the product F supplied from the winding roller 1a is wound, and being transported. A plurality of guide rollers 1c are installed to guide the product F to the cutting position while tensioning it. In addition, the transfer frame 1 is provided with an unshown exhaust duct for discharging the fume generated during laser cutting of the product F to the outside.

On the other hand, the product (F) is wound in the form of a fabric as described above, unlike being supplied continuously, may be formed in a single piece form and supplied sequentially. In addition, the product (F) may be composed of a thin film having a plurality of pattern lines not shown on the surface for implementing a stereoscopic image.

The laser beam generator 5 is a member installed in the transfer frame 1 to generate the laser beam RV for cutting the product F. Since the internal structure is the same as that of a conventional laser beam generator, detailed description thereof will be omitted. . The laser beam generator 5 supplies the laser beam RV to the cutting head 10 to be described later through the reflector 5a provided at one side as shown in FIG. 3.

The cutting head 10 is installed in the transfer frame 1 to irradiate the product F with the laser beam RV supplied by the laser beam generator 5 to cut the product F in a width set along the conveying direction. It is a member to do. Here, the cutting head 10 collects the laser beam RV generated by the laser beam generator 5 and reflected by the reflector 5a in a polarized state, as shown in FIG. 3, and irradiates the product F. .

Accordingly, the cutting head 10 continuously cuts the product 10 continuously transferred from the take-up roller 1a to the catcher roller 1b to a set width.

Such, the cutting head 10 may be installed in a fixed form in the frame (1) provided in the singular as shown in FIGS. 1 and 2, a plurality according to the product (F) as shown in FIG. It may be provided to be configured to slit a plurality of products (F). In addition, as shown in Figure 3 it can be installed to be movable in the conveying direction or the width direction of the product (F) by the driver 30 to be described later.

The detector 20 is a means installed in the conveying frame 1 to measure the dimensions of the product F. The detector 20 detects both end portions of the product F to detect the width or length of the product F. , And detects a distance of a portion of the product F, and comprises a detector frame 200, a camera 210, a display 230, an end distance detecting means, and a calculation unit 240, as shown in FIG. do.

This detector 20 is installed in front of the cutting head 10 as shown in Figure 1 and 2 to measure the dimensions of the product (F) entering the cutting head 10, unlike the cutting head shown It is also possible to measure the dimensions of the product F installed behind the 10 and slitting by the cutting head 10.

As shown in FIG. 4, the detector frame 200 is installed in the transport frame 1 in a direction crossing the product F to be transported, and is installed in the form of a gate through which the product F passes downward.

The detector frame 200 may be installed to be movable along the conveying direction of the product (F) by the moving rail (200a) provided in the conveying frame (1), as shown in the transfer frame (1) It can be installed in a fixed form.

The camera 210 is a member coupled to the detector frame 200 to photograph both ends of the product F or photograph both ends of a portion of the product F, and is provided as a pair as shown in FIG. 4. Take pictures of both ends.

The camera 210 may be fixed to the detector frame 200 at intervals set according to the width of the product F to photograph both ends of the product F, respectively. Alternatively, the camera 210 may be provided in plural or singular. May be movably coupled to. This will be described later.

The display 230 displays an image of positions of both ends of all or some sections of the product F respectively photographed by the camera 210, and as shown in FIG. 5, the camera 210 and the cable CB. It may be connected via a), or may be connected by wireless communication, unlike illustrated.

The end distance detecting means detects the end distances α and β through the distance difference between the end position of the product F taken by the camera 210 and displayed on the display 230 and the point set on the display 230. It is a component. The end distance detecting means detects the end distances α and β using the reference line 231 as a point.

As shown in FIG. 5, the reference line 231 is formed at the center of the display 230 connected to the camera 210 to divide the entire pixels of the display 230.

That is, the end distance detecting means detects the position of both ends of the product F and the end distances α and β of the reference line 231, respectively, which are photographed by the camera 210 and displayed on the display 231, respectively. The end distance detecting means detects the end distances α and β through the number of pixels arranged between the reference line 231 displayed on the display 230 and the end of the product F. FIG. Thus, the end distance detecting means can accurately detect the end position of the product F of the display 230 through the pixel.

The calculation unit 240 calculates the end distances α and β detected by the end distance detection means and the position of the camera 210 to detect the absolute dimension W in the width direction or the longitudinal direction of the product F. As an element, it is composed of a display 230 and a microprocessor and a memory connected to the camera 210, by calculating the distance (L) between the camera 210 set according to the end distance (α, β) and the product (F) Detect and store the absolute dimension (W).

Accordingly, the calculation unit 240 detects the absolute dimension W for the product F slitting by the cutting head 10 and simultaneously stores the detected data. Defective parts exceeding or falling short are detected, and data about a section of the product F including the detected defective part is stored.

On the other hand, the detector 20 of the present invention, when measuring the dimensions of the product (F) formed with a large number of pattern lines (not shown) for realizing a three-dimensional image, that is, a partial section on the product (F), that is, the side end of the pattern line and the The distance between the end of the article F or the distance between the pattern line and another pattern line is measured.

That is, the pattern line is formed at the interval set in the product (F), in particular, the pattern line has a predetermined interval with the end of the product (F), the detector 20 is the pattern line and the product ( Defects are detected by measuring the distance between the ends of F) or by measuring the distance between the pattern line and another pattern line.

At this time, the detector 20 photographs the side end of the pattern line and the end of the product F through the camera 210 described above, and is disposed between the pattern line and the end of the product F that are displayed on the display 230. The distance is measured by the number of pixels.

On the other hand, the detector 20 of the present invention may further comprise a guide rail 250, a slider 260, a slider moving means and a moving distance detecting means as shown in Figs.

The guide rail 250 is installed along the longitudinal direction of the detector frame 200 as shown.

The slider 260 is coupled to the guide rail 250 and moves along the guide rail 250, and the above-described camera 210 is installed to move the camera 210 to both ends of the product F. As shown in FIG. 4, the slider 260 is configured in a block form and provided in pairs to move along the guide rails 250, respectively. Alternatively, the sliders 260 may be provided in singular numbers and sequentially moved to both ends of the product F. have. In this case, the slider 260 may be provided with an unillustrated roller that reduces friction with the guide rail 250.

The slider moving means is a component for moving the slider 260 along the guide rail 250. That is, the moving means is a means for moving the pair of sliders 260 to both end portions of the width direction of the product F, respectively, and includes a stator 281 and a mover 283.

The stator 281 is a member that is fixed along the longitudinal direction of the guide rail 250 to provide a magnetic force. The stator 281 has a plurality of magnets 281a continuously arranged as shown in FIG. 4 to provide magnetic force.

Here, the magnet 281a may be composed of a permanent magnet or an electromagnet that provides a magnetic force by a power source.

The mover 283 is respectively fixed to the pair of sliders 260 to provide magnetic force. Here, the mover 283 provides a magnetic force of different polarity with the stator 281 to generate a repulsive force to push each other. The mover 283 is composed of an electromagnet when the stator 281 is composed of a permanent magnet. Alternatively, the mover 283 is composed of a permanent magnet when the stator 281 is composed of an electromagnet. to provide.

That is, the slider moving means may be configured as a linear motor system in which the mover 283 moves by the repulsive force generated by providing the magnetic force of different polarity from the stator 281 to generate the repulsive force. Therefore, since the slider moving means provides the electromagnetic force to move the slider, the precision of the linear movement of the slider 260 can be improved.

The moving distance detecting means checks the moving position of the slider 260 moving along the guide rail 250 by the slider moving means, that is, the moving distance L of the camera 210, that is, the distance L between the cameras 210. As an element for detecting a, it may be configured to include a linear scale 271 and the scale head 273 as shown in Figs.

The linear scale 271 represents the moving position of the slider 260 and may be fixed to the detector frame 200 described above along the longitudinal direction of the guide rail 250. The linear scale 271 is composed of a glass material or a metal material, and a scale 411 is provided at regular intervals as shown. The scale 411 may be provided at intervals of 10 μm or 20 μm to accurately represent the moving position of the slider 260.

The scale head 273 is provided on the slider 260 to detect the moving distance L of the camera 210 by sensing the scale 411 of the linear scale 271 while moving together with the slider 260. For example, the scale head 273 reads 50 to 2500 pulses or more pulses per mm while passing through the scale 411 of the linear scale 271, and converts the linear head into a linear distance while moving and moving the slider 260. Check. That is, the scale head 273 may check the moving position of the slider 260 through the linear scale 271, and thus, the moving distance L of the camera 210 moving with the slider 260, respectively, The distance L between cameras can be detected.

Therefore, the above-described calculation unit 240 can detect the absolute dimension (W) of the product (F) more precisely through the calculation of the movement distance (L) and the above-described end distance (α, β).

On the other hand, the movement distance detecting means may further include a home position setting means.

The origin setting means is a component that initializes the moving distance by providing a base point 275 to the scale head 273 for checking the moving position of the slider 260.

The base point 275 is formed at any point of the linear scale 271 as shown in FIG. 5, and initializes the scale head 273 moving with the slider 260. The same sensor may be configured.

That is, the slider 260 checks the movement distance L through the scale head 273 and the linear scale 271 while respectively moving to both ends of the product F with respect to the base point 450.

On the other hand, the detector 20 of the present invention may further comprise an error detection means as shown in FIG. The error detecting means is a component that detects an installation error of the camera 210 installed in the slider 260 and provides the above-described calculation unit 240.

The error detecting means detects a difference between the installation error e1 of the camera 210 installed in the slider 260, that is, the photographing center of the camera 210 and the center of the slider 260 by the assembly dispersion or the dimension distribution. The error detecting means is displayed as a straight line on the guide rail 250 or the linear scale 271 so as to coincide with the center of the slider 260 through the error detecting line 290 displayed to be photographed by the camera 210. The installation error e1 is detected.

The error detection line 290 is photographed by the camera 210 as shown, and is displayed on the display 230. In this case, the error detecting unit measures the distance difference between the above-described reference line 231 and the error detecting line 290 formed at the center of the display 230, and detects the installation error e1 of the camera 210. Provided at 240. Of course, the error detection means measures the installation error e1 through the number of pixels disposed between the reference line 231 and the error detection line 290 of the display 230.

Accordingly, the detector 20 calculates the installation error e1 detected by the error detecting means while calculating the moving distance L and the end distances α and β described above by using the calculation unit 240 to more accurately calculate the product ( Defective part of the product F can be detected by measuring the absolute dimension W of F).

On the other hand, the slitting device according to the present invention may further comprise a driver (30).

The driver 30 moves the above-described cutting head 10 in a direction different from the conveying direction or the conveying direction of the product F, that is, in the width direction of the product F, so as to slit the product F to a predetermined width. As a means, it comprises a motion frame 310, a cross rail 311, a cross slider 330, a cross moving unit 350 and a motion frame moving unit 370 as shown in FIG. .

The motion frame 310 is for moving the cutting head 10 to a set cutting position. As shown in FIG. 3, the motion frame 310 is a plate-shaped member on which one side of the laser beam generator 5 is mounted. It is installed to be movable along the conveyance direction of the product (F).

The cross rail 311 is a member for guiding the cutting head 10 in a direction different from the conveying direction of the product F. As illustrated in FIG. 3, the cross rail 311 crosses the width of the product F. As illustrated in FIG. ), A slot 311a for moving the cutting head 10 is provided in the longitudinal direction.

The cross slider 330 is installed on the cross rail 311 so as to be movable, and the cutting head 10 is fixed to one side and moves along the longitudinal direction of the cross rail 311 together with the cutting head 10. 10 is a member for moving in the width direction of the product (F), as shown in Figure 3 is embedded in the cross rail 311, cut through the slot 311a formed in the longitudinal direction of the cross rail 311 Is connected to the head 10.

The cross moving unit 350 is a means for providing a driving force to the cross slider 330 to move the cross slider 330 along the longitudinal direction of the cross rail 311, as shown in FIG. 3. It includes a lead screw 351 is installed in the longitudinal direction of the cross slider 330 and the drive motor 353 is installed at the end of the lead screw 351 to rotate the lead screw 351.

Accordingly, the cross moving unit 350 moves the cross slider 330 along the longitudinal direction of the cross rail 311 while the lead screw 351 is rotated by the driving motor 353, thereby cutting the head 10. Move in the width direction of the product (F).

The motion frame moving unit 370 is a means for providing a driving force to the motion frame 310 to move the motion frame 310 in the conveying direction of the product. The motion frame moving unit 370 conveys the conveying direction of the product F as shown in FIG. 3. The linear rail 371 installed on the frame 1 and the linear motor 371 fixed to the lower portion of the motion frame 310 and seated on the linear rail 371, which generate electromagnetic force and move along the linear rail 371 ( 373).

Accordingly, the motion frame moving unit 370 moves the cutting head 10 in the conveying direction of the product F by moving the motion frame 310 along the linear rail 371 through the electromagnetic force of the linear electric motor 373. Let's do it.

In conclusion, the cutting head 10 moves in the longitudinal direction of the product F together with the motion frame 310 moved by the motion frame moving unit 370, and moves by the cross moving unit 350. It moves to the width direction of the product F with the 330, and moves to the set position for cutting the product F. As shown in FIG.

It describes the operation of the slitting device according to the present invention including the above components.

The product F, such as a thin film, is unwound from the take-up roll 1a provided in the transfer frame 1, and then wound around the catcher roller 1b and tensioned by the guide roller 1c. Conveyed continuously to the bottom.

At this time, the detector 20 detects a defective portion of the product F while measuring the absolute size W of the product F in front or rear of the cutting head 10.

When measuring the absolute dimension W of the product F to be conveyed, the detector 20 first moves the camera 210 together with the slider 260 to both ends of the product F as shown in FIG. The distance L of the camera 210, ie, the distance L between the cameras 210, is calculated by the movement distance detecting means.

In this case, the pair of sliders 260 respectively move the camera 210 to both ends of the product F by the repulsive force generated between the stator 281 and the mover 283. In addition, the scale head 273 moves along the guide rail 250 together with the slider 260 and detects the scale 271a of the linear scale 271 to detect the camera 210 through the moving position of the slider 260. Calculate the travel distance L of

That is, the linear scale 271 and the scale head 273 calculate the moving distance L of the camera 210 to calculate the approximate width of the product F.

In addition, the detector 20 calculates an end position of the product F through the camera 210 moved to both ends of the product F.

In this case, the camera 210 photographs both ends of the product F, respectively, as shown in FIG. 5, and the display 230 displays the positions of both ends of the product F respectively photographed through the respective cameras 210. Each one manifests itself.

The end distance detecting means calculates end distances α and β between both ends of the product F taken by the camera 210 and the camera 210. Here, the end distance detecting means recognizes the center of all pixels of the display 230 as the reference line 231, and the pixel disposed between the end position of the product F displayed on the display 230 and the reference line 231. The end distances α and β are calculated from the number of.

The calculation unit 240 calculates the movement distance L of the camera 210 calculated by the movement distance detecting means and the end distances α and β calculated by the end position detecting means, thereby calculating the absolute dimension ( Calculate and save W).

Here, the operation unit 240 is added to the moving distance (L) because the end distance (α) of one end of the product (F) exceeds the reference line 231, as shown in Figure 5, the other end of the product (F) Since the end distance beta is less than the reference line 231, the absolute dimension W of the product F is calculated and stored by subtracting it from the moving distance L.

Therefore, the detector 20 can measure the absolute dimension W of the product F accurately.

For example, the movement distance L of the camera 210 is 500 mm, the end distance α of one end of the product F exceeds 10 mm from the reference line 231, and the end distance β of the other end of the product F. Is less than 20mm from the reference line 231,

The formula of absolute dimension (W) = 500 (L) + 10 (α)-20 (β) is established, and an absolute dimension (W) of 490 mm is detected.

On the other hand, the error detecting means detects the installation error e1 of the camera 210 with respect to the slider 260 as shown in FIG. 6 and provides it to the calculator 240.

Accordingly, when the detector 20 calculates the movement distance L between the cameras 210 and the end distances α and β of the product F through the calculation unit 240, the detector 20 calculates together with the installation error e1. The absolute dimension W of the product F is calculated.

For example, an installation error e1 in which one end of the camera 210 is less than 5 mm with respect to the center of the slider 260 and an installation error e1 in which the other end of the camera 210 exceeds 10 mm with respect to the center of the slider 260. Is detected by the error detecting means,

The formula of absolute dimension (W) = 500 (L) + 10 (α)-20 (β)-5 (e1) + 10 (e1) is established, and an absolute dimension W of 495 mm is detected.

Therefore, the detector 20 can measure the absolute dimension W of the product F more accurately.

Here, when the absolute dimension (W) of the detected portion is less than or exceeds the width of the set product (F), that is, detected as a defective portion, the section of the product (F) containing the defective portion is calculated by the calculation unit 240 Are stored in.

Meanwhile, when a pattern line for realizing a stereoscopic image is formed in the product F, the detector 20 measures dimensions through the number of pixels disposed between the pattern line displayed on the display 230 and the end of the product F. While measuring and storing the dimensions measured by the calculation unit 240, and stores the data of the product (F) containing the defective portion.

The product F measured by the detector 20 is cut by the width set in the laser beam RV irradiated from the cutting head 10 while being transferred toward the catcher roll 1b.

In this case, the cutting head 10 moves in the longitudinal direction of the product F together with the motion frame 310 moving by the motion frame moving unit 370, and moves by the cross moving unit 350. 330 and the cross rail 311 together move in the width direction of the product (F), and moves to a set position for cutting the product (F).

The cutting head 10 slits the product F by irradiating the product F with the laser beam RV supplied through the laser beam generator 5.

The finished product F, slitting is wound around each catcher roll 1b to complete the process. In this case, the finished product (F) is the data about the absolute dimension (W) is stored in the calculation unit 240, especially since the data of the section containing the defective part is stored, the post-process such as cutting of the unit film When only defective parts can be removed accurately, the defective rate of the finished product can be reduced.

The slitting apparatus according to the present invention as described above measures the dimensions in the width direction and the longitudinal direction of the product F continuously provided with a detector 20 for checking the position of both end portions of the product F in real time. And by cutting through the cutting head 10, since all parts of the product (F) can be measured to detect defective parts, the defective rate of the cut finished product can be reduced.

In addition, the detector 20 checks the end position of the product F through the camera 210 and the display 230, and detects the absolute dimension W through the calculation unit 240. W) can be detected accurately.

In particular, the end distance detection means detects the end distances α and β through the number of pixels of the display 230 disposed between the reference line 231 of the display 230 and the end of the product F, so that the end distances are more precisely. (α, β) can be measured.

In addition, since the camera 210 moves to both ends of the product F by the moving means together with the slider 260, it can flexibly correspond to the width of the product, and the moving distance of the camera 210 by the moving distance detecting means. Since L is detected, the absolute dimension W can be measured through the movement distance L and the end distances α and β.

In addition, since the moving distance detecting unit checks the moving position of the slider 260 through the linear scale 271 and the scale head 273, the moving distance L of the camera 210 can be detected without flow.

In addition, since the moving means is composed of a stator 281 and a mover 283 for providing an electromagnetic force to move the slider 260, the precision of the linear movement of the slider 260 can be improved.

In addition, the installation error e1 of the camera 210 with respect to the slider 260 is detected by the error detection means, and it is provided to the calculating part 240, and the calculating part 240 provides the movement distance L and the end distance alpha, Since the absolute dimension W of the product F is detected by calculating β) and the installation error e1, the defective rate of the slitting product F can be further reduced.

Furthermore, since the cutting head 10 can be moved by the driver 30 in the conveying direction of the product F or in the width direction of the product F, the cutting head 10 can be cut actively while corresponding to the size or shape of the product F. Can be.

Specifically, the cross slider 330 to which the cutting head 10 is coupled moves along the longitudinal direction of the cross rail 311 provided in the motion frame 310, and the motion frame 310 moves the product F. Since it moves along the direction, the cutting head 10 can be stably moved to the set position.

In addition, since the cross slider 330 is moved along the longitudinal direction of the cross rail 311 by the cross moving unit 350 composed of the lead screw 351 and the drive motor 353, the cutting head 10 is a product ( F) can be moved in a direction different from the conveying direction, in addition, since the motion frame moving unit 370 is composed of a linear rail 371 and a linear electric motor 373, the motion frame 310 is stably moved and the cutting head ( 10) can move along the conveying direction of the product (F).

While specific embodiments of the present invention have been described above by way of example, these are for illustrative purposes only and are not intended to limit the protection scope of the present invention. It will be apparent to those skilled in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention.

According to the present invention, since the defective part of the thin film can be detected by measuring the dimensions of the thin film which is continuously cut and precisely measured in real time in real time for the slitting of the longitudinal direction. It can be applied to the field of producing a display panel to be attached.

Claims

In the apparatus for slitting along the conveying direction of the continuously conveyed product,

A transport unit having a transport frame on which the product is mounted and transported, the transport unit continuously transporting the product mounted on the transport frame from one side to the other side;

A laser beam generator provided in the transfer frame and generating a laser beam for slitting the product;

A cutting head installed in the transfer frame, for cutting the product into a width set along a conveying direction by irradiating the product with the laser beam generated by the laser beam generator; And

Installed in the conveying frame to measure the dimensions of the product, by detecting the end of the width or length direction of the product through the position of the two ends confirmed by checking each end of the product, respectively, or a section of the product And a detector for detecting a distance of a portion of the product through the positions of the identified end portions by checking both end portions of the product.
The method of claim 1, wherein the detector,

A detector frame installed in the transfer frame to cross the product;

A camera installed at the detector frame to photograph both ends of the product, or to photograph both ends of a portion of the product;

A display that displays both ends of the product or both ends of a portion of the product taken by the camera;

End distance detection means for detecting an end distance through a distance difference between a position of both ends of the product or a position of both ends of a portion of the product displayed on the display and a point set on the display; And

And a calculating unit calculating the dimensions of the product by calculating the end distance detected by the end distance detecting means and the position of the camera, or calculating a distance of a portion of the product.
The method of claim 2, wherein the end distance detecting means,

A reference line dividing all pixels of the display on which the image of the camera is displayed;

And the end distance is detected through the number of pixels disposed between the reference line and an end of the product or an end of a portion of the product as it is displayed on the display.
The method of claim 2, wherein the detector,

A guide rail installed along the detector frame;

At least one slider movably coupled to the guide rail and installed with the camera and moving with the camera;

Slider moving means for moving the slider along the guide rail; And

And a moving distance detecting means for detecting a moving distance of the camera moving along with the slider along the guide rail and providing the detected moving distance to the operation unit.
The method of claim 4, wherein the slider moving means,

A stator fixedly installed along a length of the guide rail to provide a magnetic force; And

And a mover installed on the slider and moving the slider while providing magnetic forces having different polarities from those of the stator.
The method of claim 4, wherein the moving distance detecting means,

A linear scale provided on the guide rail to express a moving position of the slider; And

And a scale head configured to detect a moving distance of the camera by moving with the slider while sensing the linear scale.
The method of claim 2, wherein the detector,

And an error detecting means for detecting an installation error of the camera for transmitting the captured image to the display and providing the calculated error to the operation unit.
The method of claim 7, wherein the error detecting means,

The camera detects the error detection line displayed to be photographed by the camera, and sets the center of all pixels of the display on which the photographed error detection line is manifest as a reference line, through the distance difference between the reference line and the error detection line. Slitting apparatus characterized by detecting the installation error.
The method of claim 1,

Is installed in the transfer frame, the laser beam generator and the cutting head to move the cutting head to a predetermined position to cut the product to a predetermined width while moving in a direction different from the conveying direction of the product or the conveying direction of the product Slitting device further comprising a driver.
The method of claim 9, wherein the driver,

A motion frame equipped with the laser beam generator and installed in the transport frame to be movable along the longitudinal direction of the product;

A cross rail installed in the motion frame to guide the cutting head in a direction different from a conveying direction of the product;

A cross slider movably installed on the cross rail, the cutting head being installed at one side and moving along the length of the cross rail together with the cutting head;

A cross moving unit providing a driving force to the cross slider to move the cross slider horizontally along the longitudinal direction of the cross rail; And

And a motion frame moving unit configured to provide a driving force to the motion frame to move the motion frame horizontally along the conveying direction of the product.
The method of claim 10, wherein the cross moving unit,

A lead screw installed along the longitudinal direction of the cross rail in an engaged state with the cross slider; And

And a driving motor installed at an end of the lead screw to rotate the lead screw to move the cross slider along the lead screw.
The method of claim 10, wherein the motion frame moving unit,

A linear rail installed in the conveying frame in the conveying direction of the product; And

And a linear electric motor fixedly fixed to the motion frame and seated on the linear rail and generating an electromagnetic force to move the motion frame horizontally while moving along the linear rail.