KR101256953B1 - Roll-film suction device of roll-film cutting system - Google Patents

Abstract

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a roll film adsorption device for a roll film cutting system, the roll film adsorption device for a roll film cutting system capable of cutting a rolled film in a width direction, wherein the position of the roll film is fixed by vacuum. Adsorption member provided with a plurality of adsorption holes for; A plurality of vacuum lines connecting the suction holes and the vacuum pump; And a vacuum dividing member configured to apply a vacuum to the suction holes on which the roll film is placed, and to not apply a vacuum to the suction holes on which the roll film is not placed.

Description

Roll-film suction device of roll film cutting system

The present invention relates to a roll film adsorption device of a roll film cutting system, and more particularly, to a roll film cutting system for fixing a position of a roll film when cutting a roll film such as a polarizing film roll. It relates to a roll film adsorption device.

In general, a liquid crystal display is essentially provided with a liquid crystal panel composed of a pair of transparent insulating substrates, each having a liquid crystal layer interposed therebetween, and having a field generating electrode formed therebetween, thereby changing the electric field between the field generating electrodes. Through this, the alignment direction of the liquid crystal molecules is artificially adjusted, and various images are displayed by using the light transmittance which is changed in this process.

On the upper and lower surfaces of the liquid crystal panel, polarizing films for visualizing the change of the liquid crystal alignment of the liquid crystal display device are disposed. The polarizing film transmits light of a polarization component coinciding with the transmission side. The liquid crystal display device determines the degree of light transmission based on the arrangement of the transmission axes of the polarizing films disposed on the upper and lower surfaces of the liquid crystal panel and the arrangement characteristics of the liquid crystals.

The roll-shaped polarizing film (hereinafter, referred to as 'polarizing film roll') manufactured by various methods known in the industry is cut (cutting) according to the size of the liquid crystal display device corresponding to it by a mechanical cutting machine (for example, cutting press or super cutter). Should be

However, when cutting the polarizing film roll with a mechanical cutting machine such as a cutting press or a super cutter, the cut surface must go through a chamfering process, and a large amount of dust is generated during the cutting of the polarizing film roll, thereby further processing cost and environmental treatment. There is a cost. This leads to higher production costs and lower productivity. In order to improve this, recently, an apparatus for cutting a polarizing film roll using a laser has been developed. When the polarizing film roll is cut using a laser, the polarizing film roll which is transferred and stopped on the adsorption plate is adsorbed by the vacuum pressure generated by the vacuum pump to fix the position of the roll film.

However, the conventional adsorption apparatus for adsorption fixing of the polarizing film roll imparts a vacuum pressure over the entire length of the adsorption plate irrespective of the width of the polarizing film roll to be conveyed, so that in the case of a small polarizing film roll, the polarizing film roll is placed. There was a possibility that foreign matters sucked in through the adsorption holes of the adsorption plate exposed to the atmosphere without being supported, thereby blocking the piping of the adsorption plate or the adsorption member or contaminating the adsorption plate.

The present invention has been conceived to solve the above problems, the suction member adsorbing the roll film in the roll film cutting system does not apply a vacuum to the portion where the film roll is not seated, so that the vacuum line by the unnecessary vacuum An object of the present invention is to provide a roll film adsorption device of a roll film cutting system that is improved to prevent clogging and contamination of the adsorption member and to reduce waste of energy.

Roll film adsorption device of the roll film cutting system according to a preferred exemplary embodiment of the present invention for achieving the above object, the roll film adsorption system of the roll film cutting system capable of cutting the roll film running in the width direction A suction member comprising: a suction member provided with a plurality of suction holes for fixing the position of the roll film by vacuum; A plurality of vacuum lines connecting the suction holes and the vacuum pump; And a vacuum dividing member configured to apply a vacuum to the suction holes on which the roll film is placed, and to not apply a vacuum to the suction holes on which the roll film is not placed.

Preferably, the suction holes include common suction holes formed in an area corresponding to the minimum width of the roll film to be cut and at least one or more expansion suction holes positioned adjacent to the common suction holes; The vacuum lines include common vacuum lines in communication with the common suction holes and expansion vacuum lines in communication with the expansion suction holes; The vacuum dividing member includes a common valve that can simultaneously turn on / off the common vacuum lines and at least one or more expansion valves that can individually turn on / off the expansion vacuum lines.

Preferably, the common suction holes are disposed at the longitudinal center of the suction member; The expansion suction holes are sequentially disposed adjacent to each other toward both ends of the suction member with respect to the common suction holes.

Preferably, the common suction holes are disposed to include one end of the suction member; The expansion suction holes are sequentially disposed adjacent to each other toward the other end of the suction member from the common suction holes.

Preferably, each of the vacuum lines are branched to be exposed to the atmosphere, and further includes branching lines that can be opened and closed by branch valves, respectively.

Preferably, the roll film adsorption device is arranged to move in the width direction of the roll film, and further comprises a laser head capable of irradiating a laser beam.

Preferably, the adsorption member is arranged to be spaced apart from each other so as to form a gap through which the laser beam irradiated from the laser head can pass, and each of the adsorption holes has a pair of adsorption plates provided in a predetermined pattern. do.

Preferably, each of the adsorption plates has an adsorption pad having a plurality of inclined long holes perforated obliquely with respect to the advancing direction of the roll film.

Preferably, each of the adsorption plates has a suction pad having a plurality of '王' shaped suction holes formed in the longitudinal center region and a plurality of straight long hole suction holes disposed at both ends from the central region, respectively. .

Preferably, each adsorption plate comprises two pieces divided symmetrically from each other so that they can contact each other in the central region.

Preferably, the roll film is a polarizing film roll or a patterned retarder film roll for a stereoscopic image display device.

The roll film adsorption device of the roll film cutting system according to the present invention is a roll film cutting system that can be applied to roll films of various sizes having various kinds of widths, and corresponds to both cases where the width of the pole film is small or large. By not applying a vacuum to the portion of the adsorption member on which the roll film is not seated, it is possible to prevent the vacuum line from clogging.

The foregoing summary of the invention as well as the following detailed description of the preferred embodiments of the invention will be better understood when read in conjunction with the accompanying drawings. For the purpose of illustrating a roll film adsorption device for a roll film cutting system according to a preferred exemplary embodiment of the present application, drawings of preferred embodiments are shown. It should be understood, however, that the present application is not limited to the precise arrangements and instrumentalities shown in such drawings.
1 is an overall configuration diagram schematically showing a roll film cutting system according to a preferred exemplary embodiment of the present invention.
FIG. 2 is a perspective view illustrating an excerpt of a laser cutting machine portion of the roll film cutting system illustrated in FIG. 1.
3 is a front configuration diagram of FIG. 2.
Figure 4 is a schematic diagram showing a vacuum partition member of the roll film adsorption device according to an exemplary embodiment of the present invention.
Figure 5 is a schematic diagram showing a vacuum partition member of the roll film adsorption device according to another preferred embodiment of the present invention.
6 is a perspective view schematically showing a modification of the adsorption member according to a preferred exemplary embodiment of the present invention.
7 is an exploded plan view of the adsorption member of FIG. 6.
8 is a partial cross-sectional view of the front surface of the adsorption member of FIG. 6.
9 is a cross-sectional view taken along line VII-VII ′ of FIG. 7.
10 is a configuration diagram in which the vacuum dividing member is disposed on the suction member illustrated in FIGS. 6 to 9.

The specific terminology used in the detailed description that follows is for the purpose of convenience and not of limitation. The words "right", "left", "top" and "bottom" indicate directions in the figures to which reference is made. The words "inwardly" and "outwardly " refer to directions toward or away from the geometric center of a designated apparatus, system, and members thereof, respectively. "Forward", "backward", "upward", "downward" and their related words and phrases are indicative of the positions and orientations in the figures to which reference is made and are not limiting. These terms include the words listed above, derivatives thereof, and words of similar meaning.

Certain exemplary embodiments of the present invention will be described with reference to the drawings.

1 is an overall configuration diagram schematically showing a roll film cutting system according to a preferred exemplary embodiment of the present invention.

Referring to FIG. 1, the roll film cutting system 1 includes an unwinding device 10 and a roll supplied from an unwinding device 10 for rotatably supporting and supplying a roll film wound in a roll state. The roll film stretched through the dancer device 20 and the dancer device 20 that can control a constant tension of the roll when the roll film F stops or moves while flattening the film F flat Part to be cut to the roll film conveyed by the infeed device 30 and the infeed device 30 to determine the size accuracy of the roll film's advancing direction while constantly conveying the Marking or inspection line (marking line or marking line), laser marking 50 for cutting the roll film (F) with a laser beam along the marking line marked by the marking inspection device 40, laser Formed by cutting from the roll film F by the cutter 50 Conveying the film discharged from the discharging device 60, and a discharge device 60 for discharging the ridoen film and a packing device 70 for packing packed in the packaging container.

Cutting by-product removal device 100 according to a preferred exemplary embodiment of the present invention works with the laser cutting machine (50). Thus, the unwinding device 10, the dancer device 20, the infeed device 30, the marking inspection device 40, the discharge device 60 and the packaging device 70 may be a general configuration of a roll film cutting system. Therefore, detailed description thereof will be omitted herein.

The roll film F described in this embodiment is a polarizing film roll or a patterned retarder film roll for a stereoscopic image display device used in a display device. However, it will be understood by those skilled in the art that the roll film F may comprise wrapping paper, industrial material, plastic paper, or other sheet form films.

FIG. 2 is a perspective view showing an excerpt of a laser cutting machine portion of the roll film cutting system illustrated in FIG. 1, and FIG. 3 is a front configuration diagram of FIG. 2. 2 and 3 other components (vacuum pumps, vacuum lines and valves) of the roll film adsorption apparatus according to a preferred exemplary embodiment of the present invention will be omitted, which will be described later.

2 and 3, the laser cutting machine 50 is installed on the frame 110 to change the direction of the laser source 122 installed on the frame 110 and the laser beam radiated from the laser source 122. The light reflection assembly 124 and the end of the light reflection assembly 124 are installed in the movable block 118 installed to reciprocate in the width direction of the roll film F by the linear motor 111 installed in the frame 110. The light receiving part 127 which can receive a laser beam from the inside, and the laser head 125 which can irradiate a laser beam toward roll film F are provided.

The laser source 122 has high applicability in the thickness range of the roll film F to be cut, and uses a CO ₂ laser to prevent cracks and marking defects from occurring. However, those skilled in the art will fully appreciate that the laser source 122 may include any laser beam generating device known in the art or in the future.

The light reflection assembly 124 is composed of a plurality of reflectors, the first light reflecting portion 126, first installed at the end of the laser source 122 to change the direction of the laser beam emitted from the laser source 122 A second light reflecting portion 128 disposed to be orthogonal to the first light reflecting portion 126, and a third light reflecting portion 121 provided to correspond to the light receiving portion 127 of the laser head 125. Therefore, the light receiving portion 127 and the third light reflection portion 121 of the laser head 125 are set to be positioned on the same line. Therefore, even if the laser head 125 moves along the linear motor 111 in the width direction of the roll film F, the laser beam emitted through the third light reflection part 121 may receive the light receiving part 127 of the laser head 125. ) Can be delivered to the stable.

The laser head 125 is disposed perpendicular to the moving block 118 coupled to the linear motor 111 so that the end laser nozzle 129 faces the roll film F. As shown in FIG. It will be understood by those skilled in the art that the laser head 125 can be configured to be movable in the longitudinal direction as well as in the width direction of the roll film F if necessary.

The frame 110 has a plurality of support frames 114 coupled to the base frame 112 and includes a main frame 126 installed on the support frames 114. In the inner space of the main frame 116, a conveying conveyor (not shown) for conveying the polarizing film separated from the roll film F is provided. In addition, the main components of the laser cutting machine described above are installed on the upper surface of the main frame 116.

Roll film adsorption apparatus 300 according to a preferred embodiment of the present invention, as described above, before the roll film F is cut in the width direction by the laser head 125 of the laser cutting machine 50 (the roll film ( For fixing the position of F) by vacuum, the roll film F supplied can be fixed by suction, and a gap C through which the laser beam irradiated from the laser head 125 can pass is provided and a plurality of Adsorption member 130 provided with adsorption holes 132.

The adsorption member 130 is disposed long in the width direction of the roll film F so as to face the laser head 125 of the laser cutter 50. The adsorption member 130 is provided with a plurality of vacuum adsorption holes 132 in a predetermined pattern, respectively, a pair of spaced apart from each other by a predetermined interval (for example, 4mm to 8mm) to form a gap (C). Adsorption plates 134 and 136.

The adsorption member 130 is installed across the frame 110 and arranged to be spaced apart from each other a pair of adsorption frames 139, the adsorption bracket 131 installed on each adsorption frame 110, and the roll film (F) The suction pads 133 and 135 are respectively installed on the suction brackets 131 so that the bottom surfaces of the pads may contact each other, and the plurality of vacuum suction holes 132 are provided in a predetermined pattern. The vacuum suction holes 132 provided in the respective suction pads 133 and 135 are in the form of long holes formed to be inclined at a predetermined angle with respect to the advancing direction of the roll film F. FIG. In addition, the vacuum suction holes 132 are in communication with the vacuum pump 310 (see FIG. 4).

The laser cutting machine 50 of the roll film cutting system according to an exemplary embodiment of the present invention is a suction member installed to be selectively accessible or spaced in the direction of the gap (C) of the adsorption member 130 to suck the by-product ( 140, and a reciprocating member 150 installed in the frame 110 to reciprocate the suction member 140.

Suction member 140 is a suction unit 142 that can be located close to the gap (C: Figure 4) of the suction member 130, the suction body 144 in communication with the suction unit 142, and the suction unit The discharge part 146 communicated with the suction body 144 to discharge the by-products sucked from the 142 to the outside.

The suction part 142 is provided with a funnel for connecting the flat nozzle and the suction body 144 having a thin and long cross section, such as a funnel spout, so that the suction part 142 can be inserted into the gap C of the suction member 130. The flat nozzle preferably has a height high enough not to interfere with the suction member 140. The funnel portion is sealingly coupled with the suction body 144. The suction body 144 has a substantially rectangular parallelepiped shape extending in the width direction of the roll film F. The discharge part 146 has four discharge pipes provided on the side of the suction body 144. Each of the discharge pipes of each discharge unit 146 may be connected to a dust collecting unit (not shown). The suction body 144 in communication with the suction unit 142 is fixed to the suction bracket 148, the suction bracket 148 is fixed to the operation rod 152 of the reciprocating member 150 to be described later.

The reciprocating member 150 includes an actuator 154 including an operation rod 152 connected to the adsorption member 130, and a guide rod 156 that can guide the reciprocation of the adsorption member 130. Actuator 154 preferably uses a pneumatic or hydraulic cylinder. In addition, it will be apparent to those skilled in the art that the actuator 154 may be replaced by a motor. The actuators 154 and the guide rods 156 are provided in pairs on the side surfaces thereof symmetrically with respect to the suction member 130. In addition, as shown in FIG. 5, the guide rod 156 is additionally provided on a surface opposite to the surface on which the discharge pipes are installed. Therefore, when the actuator 154 is operated, the suction bracket 148 is guided by the guide rod 156 to move up and down, thereby allowing the suction member 140 to reciprocate.

The reciprocating member 150 ascends and lowers the suction member 140 as the roll film F is absorbed or released by the suction member 130 and the upper end level of the suction part 142 of the suction member 140 and the roll film. The distance between the bottom levels of (F) is selectively changed. That is, the reciprocating member 150 is a laser head 125 is cut in the width direction in the width direction in the state in which the roll film (F) is adsorbed to the adsorption member 130, then the suction member 140 By moving below a predetermined interval, the cut surface of the roll film (F) at the time of resupply of the roll film (F) by the lower negative pressure of the suction unit 142 of the suction member 140 is the suction pad 135 of the suction member 130 Is to prevent the phenomenon.

Figure 4 is a schematic diagram showing a vacuum partition member of the roll film adsorption device according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the roll film adsorption device 300 according to the present embodiment includes a plurality of vacuum lines 342 connecting the adsorption holes 132 and the vacuum pump 310, and the roll film F. Vacuum is applied to the suction holes 132 to be placed, and the vacuum dividing member 320 is configured to not apply vacuum to the suction holes 132 on which the roll film F is not placed.

The vacuum pump 310 is for applying a vacuum to the suction holes 132 of the pair of suction pads 133 and 135 of the suction member 130, and has a conventional pump structure.

The suction holes 132 of the suction member 130 are separated into common suction holes 332 and the expansion suction holes 334, and the common suction holes 332 are suction pads 133 of the suction member 130. Disposed in the longitudinal center of the 135 and the expansion suction holes 334 are directed toward both ends of the suction pads 133 and 135 of the suction member 130 with respect to the common suction holes 332. It is sequentially arranged adjacently. The common suction holes 332 are set by the length of the suction pads 133 and 135 corresponding to the minimum width Ws (Ls) of the roll film F to be cut, and the expansion suction holes 334 are The width of the roll film F that can be used in the cutting system 1 is set to be gradually expanded and adjusted as the width becomes larger.

The vacuum lines 340 include common vacuum lines 342 communicated with the common suction holes 332 and a plurality of expansion vacuum lines 344 communicated with the expansion suction holes 334. In addition, each of the vacuum lines 340 includes a branch line 346 branched to be exposed to the atmosphere, and each branch line 346 has a branch valve A1 (A2) A3 (A4) ( Can be opened and closed by A5).

The vacuum dividing member 320 may include a common valve V1 that may simultaneously turn on / off common vacuum lines 342, and a plurality of expansion valves that may individually turn on / off expansion vacuum lines 344. (V2) (V3) (V4) (V5), and branch valves (A1) (A2) (A3) (A4) (A5) which can individually turn on / off the branch line (346).

Common valve V1, expansion valves V2, V3, V4, V5 and branch valves A1, A2, A3, A4, A5 are controlled by a not shown control. Each branch valve A1 (A2) (A3) A4 (A5) may be provided in plural in a position corresponding to the common valve V1 and the expansion valves V2, V3, V4 and V5. have. In addition, a plurality of common valves V1 and expansion valves V2, V3, V4, and V5 may also be provided at positions corresponding to the respective suction holes 132.

In this embodiment, the adsorption holes 132 facing each other in the pair of adsorption pads 133 and 135 form one unit and such one unit is shown and connected to one vacuum line. However, one vacuum line is connected to each of the adsorption holes 132 provided in each of the adsorption pads 133 and 135, or a plurality of adsorption holes 132 including adjacent adsorption holes 132 are provided. It will be understood by those skilled in the art that the vacuum lines 340 may be connected to one such group by forming a group of.

Hereinafter, the operation of applying or releasing a vacuum to the suction holes 132 of the suction plates 134 and 136 using the vacuum pump 310 in the roll film adsorption device 300 will be described.

First, the roll film F enters the adsorption pads 133 and 135 of the adsorption member 130, and then operates the vacuum pump 310. Subsequently, in order to apply vacuum to the suction holes 132 of the suction pads 133 and 135, the branch valves A1, A2, A3, A4, and A5 are closed and the vacuum valves V1 are applied. Vacuum is started by opening (V2) (V3) (V4) (V5). When the branch valves A1, A2, A3, A4, and A5 are locked, the vacuum valves V1, V2, V3, V4, and V5 are locked to be connected to the suction holes 132. The vacuum is maintained in the vacuum lines, so that the roll film F placed on the surfaces of the suction pads 133 and 135 adheres to the surfaces of the suction daps 133 and 135. Here, the time for closing the vacuum valves V1, V2, V3, V4, and V5 is controlled to be about 1 second.

In this state, when the laser head 125 cuts the roll film F while moving in the width direction of the roll film F, the suction pads 133 and 135 to move the cut roll film F. The vacuum of the suction holes 132 must be released. To this end, first, branch valves A1 (A2) (A3) (A4) (A5) are opened, and the vacuum valves (V1) (V2) (V3) (V4) (V5) are locked. Break the vacuum. Finally, when the branch valves A1, A2, A3, A4 and A5 are locked while the vacuum valves V1, V2, V3, V4 and V5 are locked, the separated film Alternatively, the roll film F to be cut can be transferred.

Hereinafter, the operation of the vacuum dividing member 320 of the roll film adsorption device 300 will be described. As described above, when the width of the roll film F is smaller than the length of the adsorption pads 133 and 135 of the adsorption member 130, the vacuum dividing member 320 is adsorbed to which the roll film F is not seated. The vacuum is applied only to the suction holes 132 on which the roll film F is seated without applying a vacuum to the holes 132.

For example, as shown in FIG. 4, when cutting the roll film having the minimum width Ws, expansion valves V2, V3, V4, and V5 installed in the expansion vacuum line and corresponding thereto. Branch valves A2, A3, A4, and A5 provided in the branch line 346 are closed, and the branch installed in the common valve V1 provided in the common vacuum line 342 and the branch line 346 corresponding thereto. The valve A1 is opened and closed, and the roll film F is adsorbed to the suction pads 133 and 135 to be fixed, and then the laser beam is irradiated through the laser head 125 to cut the roll film F.

On the other hand, in the case of cutting the roll film F having a width wider than the minimum width Ws, the common valve V1 provided in the common vacuum line 342 and the branch valve A1 provided in the branch line 346 corresponding thereto. The appropriate number of expansion valves V2, V3, V4, V5 and corresponding branch valves A2, A3, A4 and A5 to suit the width of the roll film F. The roll film F is adsorbed onto the adsorption plate 110 while being opened and closed, and then the roll film F is cut by irradiating a laser beam through the laser head 52b. At this time, when the film roll F is transported and positioned on the suction pads 133 and 135, the branch valves A1, A2, A3, A4, and A5 are closed and the vacuum valves V1 are closed. After opening (V2) (V3) (V4) (V5), the vacuum pump 310 is operated to start applying vacuum, and when there is an adsorption force capable of adsorbing the film roll F at an appropriate vacuum pressure, the vacuum valves (V1) (V2) (V3) (V4) (V5) to close the suction force and cut the polarizing film using the laser head 125, and then branch valves (A1) (A2) (A3) (A4) (A5) is opened to break the vacuum, and then the cut film is transferred and discharged. Then, the branch valves A1 (A2), A3, A4, and A5 are closed to keep the original state, and the roll film F is transferred for the next cutting operation.

Figure 5 is a schematic diagram showing a vacuum partition member of the roll film adsorption device according to another preferred embodiment of the present invention. The same components as the reference numerals described in FIG. 4 are the same members with the same functions.

Referring to FIG. 5, the suction holes 132 have a length Ls corresponding to the roll film F having the minimum width Ws that is disposed and cut to include the right end of the suction plates 134 and 136. The common adsorption holes 332 formed as much as possible, and the expansion suction holes 334 sequentially disposed adjacent to each other toward the left end of the adsorption member 130 from the common suction holes 332 on the left side.

6 is a perspective view schematically showing a modification of the adsorption member according to a preferred exemplary embodiment of the present invention, FIG. 7 is an exploded plan view of the adsorption member of FIG. 6, and FIG. 8 is a front view of the adsorption member of FIG. 6. It is a partial excerpt sectional drawing, and FIG. 9 is sectional drawing of the VII '' line | wire of FIG.

6 to 9, the adsorption member 430 according to the modified embodiment of the present invention includes a pair of adsorption pads 432 and 434 arranged to be spaced apart from each other by a predetermined interval (C).

Each suction pad 432, 434 has a plurality of common suction holes consisting of long holes 431 for attaching to a corresponding suction bracket 131, and a plurality of '王' shaped holes formed in the longitudinal center region. Fields 436 and expansion suction holes 438 composed of a plurality of straight holes each disposed at both ends from the center region.

The common suction holes 436 are for absorbing the roll film F over a larger area, and the expansion suction holes 438 are disposed in parallel with the longitudinal side of the roll film F to It is for tracking size scalability.

As shown in FIG. 7, each of the adsorption pads 432, 434 is divided into two pieces 435, 437 which are divided symmetrically from each other so as to be in contact with each other in the center region of the adsorption plate 132, 134. ).

10 is a configuration diagram in which the vacuum dividing member is disposed on the suction member illustrated in FIGS. 6 to 9. The same components as those described in FIGS. 4 and 6 are the same members with the same functions. Therefore, detailed description is omitted.

The cutting operation of the roll film cutting system according to the preferred exemplary embodiment of the present invention thus configured will be described.

First, as shown in FIG. 7, the roll film F passes through the adsorption plates 134 and 136 of the adsorption member 130 by a conveying means (conveyor) not shown, and then inside the main frame 116. When transported to the suction unit 140, the suction unit 142 is lowered between the gaps C of the suction member 130 by the actuator 154 of the reciprocating member 150. Because, when the roll film F into which the roll film F is inserted or cut proceeds to the front (right side in FIG. 3), the end of the roll film F is attracted to the right side by the suction force of the suction member 140. This is to prevent the plate 136 from being caught by the suction pad 135. Therefore, the end of the roll film F may proceed smoothly without being caught by the adsorption plates 134 and 136 on the right side.

Subsequently, when the transfer of the roll film F to the home position (cutting position) is completed, the operation of the conveying means (conveyor) stops according to the detection of a sensor not shown and the control of the controller. Then, the actuator 154 of the reciprocating member 150 raises the suction member 140 such that the end of the suction part 142 is almost near the bottom surface of the roll film F.

The control unit operates the adsorption member 130 to fix the position of the roll film F through the vacuum adsorption holes 132. At the same time, the controller operates the suction member 140 to prepare to suck the by-product to be cut by the laser head 125 through the suction unit 142.

Next, the laser head 125 is cut in the width direction while moving in the width direction of the roll film (F). In this process, the cutting by-products generated are sucked through the suction part 142 of the suction member 140 positioned between the suction plates 134 and 136 of the suction member 130 to discharge the suction body 144 and discharge. Discharged through portion 146.

While the foregoing detailed description and drawings illustrate preferred embodiments of the invention, it is evident that various additions, modifications, combinations and / or alternatives are possible without departing from the spirit and scope of the invention as defined in the appended claims. It should be understood that it can be made. In particular, it will be understood by those skilled in the art that the present invention may be embodied in other specific forms, structures, arrangements, ratios, using other elements, materials, components, without departing from the spirit essential features of the present invention. It will be appreciated by those skilled in the art that the present invention may be used with many modifications of the structure, arrangement, proportions, materials, and components so as to be particularly suited to the specific environments and operating conditions without departing from the principles of the invention. Furthermore, the features described herein may be used alone or in combination with other features. For example, features described in connection with one embodiment may be used interchangeably and / or interchangeably with features described in other embodiments. Accordingly, the presently disclosed embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, and not limited to the foregoing detailed description.

Those skilled in the art will appreciate that various modifications and variations of the present invention are possible without departing from the broad scope of the appended claims. Some of these have been discussed above and others will be apparent to those skilled in the art.

One… Roll film cutting system 10... Unwinding device
20... Stepper device 30... Infeed device
40 ... Marking inspection device 50... Laser cutting machine
60 ... Discharge device 70... Packing device
100... Cutting by-product removing device 110... frame
112 ... Linear motor 112... Base frame
114... Support frame 116... Main frame
118 ... Move block 122... Laser source
124 ... Light reflection assembly 125... Laser head
127 ... Light-receiving unit 129. Laser nozzle
130,430... . Adsorption member 131. Adsorption bracket
132 ... Adsorption holes 133, 135, 230... Suction Pad
134,136... Adsorption plate 139... Adsorption frame
140... Suction member 142... Suction
144... Suction body 146... The discharge portion
148... Suction bracket 150... Reciprocating member
152... Working load 154... Actuator
156... Guide rod 310... Vacuum pump
320 ... Vacuum partition members 432,434. Absorption pad
436... Common suction hole 438... Expansion suction hole

Claims (12)

In the roll film adsorption device of the roll film cutting system which can cut the roll film which runs in the width direction,
A laser head disposed to move in the width direction of the roll film and capable of irradiating a laser beam;
A pair is spaced apart from each other so as to form a gap through which the laser beam irradiated from the laser head can pass, and a pair of suction holes for fixing the position of the roll film by vacuum, respectively provided in a predetermined pattern. An adsorption member having adsorption plates of;
A plurality of vacuum lines connecting the suction holes and the vacuum pump; And
And a vacuum dividing member configured to apply a vacuum to the suction holes on which the roll film is placed, and to apply no vacuum to the suction holes on which the roll film is not placed.
Each of the adsorption plates has an adsorption pad having a plurality of inclined holes perforated obliquely with respect to the advancing direction of the roll film.
The method according to claim 1,
The suction holes include common suction holes formed in a region corresponding to the minimum width of the roll film to be cut and at least one or more expansion suction holes positioned adjacent to the common suction holes;
The vacuum lines include common vacuum lines in communication with the common suction holes and expansion vacuum lines in communication with the expansion suction holes;
The vacuum dividing member includes a common valve capable of simultaneously turning on / off the common vacuum lines and at least one or more expansion valves capable of individually turning on / off the expansion vacuum lines. Roll film adsorption system for cutting system. The method according to claim 2,
The common suction holes are disposed at the longitudinal center of the suction member;
And the expansion suction holes are sequentially disposed adjacent to each other toward both ends of the suction member with respect to the common suction holes. The method according to claim 2,
The common suction holes are disposed to include one end of the suction member;
And the expansion suction holes are sequentially disposed adjacent to each other toward the other end of the suction member from the common suction holes. The method according to claim 1,
Roll film adsorption device of the roll film cutting system, characterized in that the roll film is a polarizing film roll.
The method according to claim 1,
And the roll film is a patterned retarder film roll for a stereoscopic image display device.
delete delete In the roll film adsorption device of the roll film cutting system which can cut the roll film which runs in the width direction,
A laser head disposed to move in the width direction of the roll film and capable of irradiating a laser beam;
A pair of spaced apart from each other so as to form a gap through which the laser beam irradiated from the laser head can pass, and a plurality of suction holes for fixing the position of the roll film by vacuum are provided in a predetermined pattern An adsorption member having adsorption plates;
A plurality of vacuum lines connecting the suction holes and the vacuum pump; And
And a vacuum dividing member configured to apply a vacuum to the suction holes on which the roll film is placed, and to apply no vacuum to the suction holes on which the roll film is not placed.
Each of the adsorption plates has a suction pad having a plurality of '王' shaped suction holes formed in the longitudinal center region and a plurality of linear long hole suction holes disposed at both ends from the central region, respectively. Roll film adsorption device of roll film cutting system.
The method according to claim 9,
Roll adsorption device of a roll film cutting system, characterized in that each adsorption plate comprises two pieces divided symmetrically from one another so as to be in contact with each other in the central region. The method according to claim 9,
Roll film adsorption device of the roll film cutting system, characterized in that the roll film is a polarizing film roll.
The method according to claim 9,
And the roll film is a patterned retarder film roll for a stereoscopic image display device.

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