CN103153526B - Laser cutting device and there is the cutting cutter of this device - Google Patents
Laser cutting device and there is the cutting cutter of this device Download PDFInfo
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- CN103153526B CN103153526B CN201180048178.8A CN201180048178A CN103153526B CN 103153526 B CN103153526 B CN 103153526B CN 201180048178 A CN201180048178 A CN 201180048178A CN 103153526 B CN103153526 B CN 103153526B
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- laser
- polarizing coating
- cutting
- cutting device
- laser oscillator
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0626—Energy control of the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
Abstract
The laser cutting device (10) that the present invention discloses laser (L6) is irradiated to polarizing coating (6) go up and carry out the device that cuts, comprise: the laser oscillator (1) of oscillating laser (L1), by the speculum (3) that the laser vibrated by laser oscillator (1) reflects to polarizing coating (6), and be configured between polarizing coating (6) and speculum (3), and the convergent lens (5) of laser focusing (L6), between speculum (3) and convergent lens (5), purchase the optical splitter (4) of transmittance and reflectance laser (L3).
Description
Technical field
The present invention relates to laser cutting device and there is the cutting cutter of this device.
Background technology
Polarizing coating is widely used in liquid crystal board etc.In the past, in the manufacturing procedure of polarizing coating, what carry out is hemisect only to the polarizing coating that the polarizing coating comprised in the laminate of polarizing coating cuts, or the end cut etc. of polarizing coating.The cutting of polarizing coating is cut with cutter, but be difficult to the foreign matter producing film bits etc. because of material to be cut.Because this foreign matter is mixed in polarizing coating, yield rate is reduced.
In addition, utilize laser in recent years to cut.When cutting with laser, compared with the cutting with cutter, be difficult to the foreign matter producing film bits etc. because of material to be cut.The decline of yield rate can be suppressed whereby.Therefore, this cutting method is useful, and is developed out various method (such as patent document 1,2).
Patent document 1: Japanese Unexamined Patent Publication " JP 2008-302376 publication (on December 18th, 2008 is open) "
Patent document 2: Japanese Unexamined Patent Publication " JP 2009-22978 publication (on February 5th, 2009 is open) "
But, adopt the above-mentioned polarizing coating cutting method utilizing laser in the past, have and produce the such problem of unfavorable condition when the polarizing coating of cutting relatively movement.That is, when the low power output side with laser, Problems existing is, because the power output of laser is unstable, therefore can not carry out suitable cutting.
Below illustrate it.Cut by send polarizing coating time, cutting be substantially with certain speed transmit polarizing coating while carrying out.For making production efficiency improve, described certain speed is such as the high speed of about 50m/s.Thus, from improving the viewpoint of yield rate, even during acceleration in the front and back of certain speed or the time of deceleration, the cutting of polarizing coating also can be carried out.
In the stage of the large certain speed of the transfer rate of polarizing coating, the energy of the time per unit of the part of illuminated laser reduces.Thus the power output increasing the necessary laser of cutting is necessary.On the other hand, in the stage that the transfer rate of polarizing coating is little, the energy of the time per unit of the part of illuminated laser increases.As a result, the cut surface likely acting on polarizing coating due to the heat of surplus causes the deterioration of quality.Therefore, the power output suppressing laser is necessary.
When using the low power output side of laser in the power output for suppression laser, the vibration that there is laser can become unstable problem.Therefore, power output after adjustment may swing in generation, can not irradiate the energy being enough to cut polarizing coating, and, even if in the stage that transfer rate is little, also require not bring cut surface quality to cut the laser cutting device of polarizing coating with stable output deterioratedly.
In patent document 2, and such problem discloses explicitly the relative moving speed between machined object and laser is strengthened, and makes the laser processing that the irradiation number of times of laser reduces.According to this technology, the power that the instability because of laser oscillator can be avoided to export the laser caused increases the problem causing etch depth to become dark.But Problems existing is in this technology, is necessary the relative moving speed between machined object and laser is strengthened, is difficult to be applicable in the little situation of relative velocity.
Summary of the invention
The present invention does in view of above-mentioned problem in the past, its object is to provide that the power output of laser beam can be stable and do not cause the laser cutting device of the quality deterioration of the cut surface of polarizing coating.
Laser cutting device of the present invention, for solving above-mentioned problem, is will irradiate laser to polarizing coating and the laser cutting device cut, it is characterized in that, comprising: the laser oscillator of oscillating laser; By the speculum that the laser that laser oscillator vibrates reflects to polarizing coating; And be configured between polarizing coating and speculum, to described laser focusing collector lens, between described speculum and collector lens, be provided with the optical splitter of laser described in transmittance and reflectance.
In laser cutting device of the present invention, being diverged by laser by optical splitter is transmitted light and reverberation, and cuts polarizing coating with transmitted light.Therefore no matter how large the power output of laser oscillator is, and the energy of the laser being irradiated to polarizing coating also can be made to reduce.Its result, even the relative velocity hour between laser cutting device and polarizing coating, also can use laser oscillator with high-output power.That is, can the high-output power side of acquisition laser oscillator time advantage and the stability of power output.On the other hand, be irradiated to the energy of polarizing coating owing to being reduced by optical splitter, thus can the high-output power side of suppression laser oscillator time problem and the deterioration of cut surface quality.
The effect of invention
As mentioned above, laser cutting device of the present invention comprises: the laser oscillator of oscillating laser; By the speculum that the laser vibrated by laser oscillator reflects to polarizing coating; And be configured between polarizing coating and speculum, and the collector lens to described laser focusing, between above-mentioned speculum and collector lens, be provided with the optical splitter of the above-mentioned laser of transmittance and reflectance.
Therefore, even if the relative velocity hour between laser cutting device and polarizing coating, also laser oscillator can be used with high-output power.That is, can the high-output power side of acquisition laser oscillator time advantage and the stability of power output.On the other hand, expose to the energy of polarizing coating owing to lowering with optical splitter, thus receive can the high-output power side of suppression laser oscillator time problem and the effect of deterioration of cut surface quality.
Accompanying drawing explanation
Fig. 1 is the sectional view that laser cutting device of the present invention is shown.
Fig. 2 illustrates the curve map of relation between time t when transmitting polarizing coating and power output w.
Fig. 3 is the sectional view that cutting cutter of the present invention is shown.
Fig. 4 is the top view of the process illustrated with cutting cutter cutting polarizing coating of the present invention.
Fig. 5 is the side view that the polarizing coating cut with embodiment 1 and comparative example 1 is shown.
Detailed description of the invention
Illustrate that an embodiment of the present invention is as follows according to Fig. 1 ~ Fig. 4.
[cutter sweep]
Fig. 1 is the sectional view that laser cutting device of the present invention is shown.Laser cutting device 10 comprises: laser oscillator 1, optical beam expander 2, speculum 3, optical splitter 4 and collector lens 5.
Laser oscillator 1 is the component of oscillating laser, does not do special restriction.Such as, available CO
2laser instrument (carbon dioxide laser), UV laser instrument, semiconductor laser, YAG laser, EXIMA laser instrument etc.Especially high-output power and the CO that the cutting of polarizing coating is applicable to
2laser instrument is ideal.
When the power output of laser oscillator 1 is low, the power output of laser easily becomes unstable.Therefore, power output is as well high.On the other hand, when power output is too high, the thermal expansion etc. due to surplus can produce the deterioration of quality at the cut surface of polarizing coating.
The concrete power output of laser oscillator 1, is preferably according to the thickness of polarizing coating 6, the transfer rate of polarizing coating 6 and is appropriately adjusted by the transmission laser of optical splitter 4 described later and the ratio of reflects laser.From these points of view, the power output of laser oscillator 1 be more than 30W, below 400W as well.In addition, when the power output of laser oscillator 1 is low, power output is just unstable, specifically, as discontented 30W, is just in and becomes in unstable tendency.
The frequency of the laser irradiated, should be properly changed according to the power output of laser oscillator 1, the thickness of polarizing coating 6 and the transfer rate etc. of polarizing coating, but general desirable more than 5kHz, below 100kHz.
As good form, laser cutting device 10 comprises optical beam expander 2.Optical beam expander 2 is components laser being widened into collimated light beam, as long as use known optical beam expander just can.Utilize optical beam expander 2 diameter expansion of laser L1 can be such as 2 times ~ about 10 times, form laser 2.When being irradiated to polarizing coating 6 by laser L6, by the diameter of expansion of laser light, easily aim at the focus of laser L6.
Speculum 3 is components that the laser vibrated by laser oscillator 1 reflects to polarizing coating 6.In laser cutting device 10, there is a speculum 3, as long as but laser L2 can be made laser L3 and reflect to polarizing coating 6, have and multiplely also to have no relations.
The power output of the laser oscillator in general laser cutting device is described with Fig. 2.Fig. 2 illustrates the curve map of relation between time t when transmitting polarizing coating and the power output w of laser oscillator.When cutting while transmitting polarizing coating, first, make polarizing coating accelerate (acceleration region), thereafter, for being suitable for the certain speed (constant speed region) cut, polarizing coating is slowed down (decelerating area), and the cutting of polarizing coating terminates.
Speed because of polarizing coating in acceleration region and decelerating area is little, if identical illuminate condition, then increases the energy of the time per unit of polarizing coating.Thus, be necessary the power output reducing laser oscillator.Therefore, in a part for acceleration region and decelerating area, the power output of laser oscillator is low, and the output of laser oscillator becomes unstable (unstable region).As a result, in acceleration region and decelerating area, the output due to laser oscillator is unstable, therefore may produce situation about not cutting off.There is restriction as described above, adopt general laser cutting device, the power output of laser oscillator can not be improved in acceleration region and decelerating area.
On the other hand, in laser cutting device 10 of the present invention, between speculum 3 and collector lens 5, optical splitter 4 is had.Optical splitter 4 is components of the above-mentioned laser L3 of transmittance and reflectance, can use known optical splitter.Being diverged by laser L3 by optical splitter 4 is the laser L4 as transmitted light and the laser L5 as reverberation.
The transmission laser of optical splitter 4 and the ratio of reflects laser, there is no particular limitation, but preferably appropriately adjust according to the transfer rate etc. of the power output of above-mentioned laser oscillator 1, the thickness of polarizing coating 6 and polarizing coating 6.Generally, when the power output of above-mentioned laser oscillator is more than 30W, below 400W, the transmission laser of optical splitter and the ratio of reflects laser are with 3: 7 ~ 7: 3 as well.Setting range above-mentioned in this way, then can use laser cutting device 10 suitably in the cutting of polarizing coating.
In laser cutting device 10, the laser L3 device 4 that is split diverges as transmitted light and reverberation, and with transmitted light cutting polarizing coating 6.Therefore, according to laser cutting device 10, no matter how large the power output of laser oscillator 1 is, and the energy of the laser L6 exposing to polarizing coating 6 also can be made to lower.That is, even acceleration region and decelerating area, also laser oscillator 1 can be used with high-output power, and the stability that the advantage during high-output power side of energy acquisition laser oscillator 1 exports.On the other hand, be irradiated to the energy of polarizing coating because lowering with optical splitter 4, thus can the high-output power side of suppression laser oscillator 1 time problem and cut surface on the deterioration of quality.
Laser L4 is concentrated on polarizing coating 6 by collector lens 5.Collector lens 5 does not make particular determination, as long as just can with spherical lens, non-spherical lens etc.The spotlight diameter of reason laser L6 determines cutting width, therefore when cutting polarizing coating, the spotlight diameter of laser L6 be more than 5 μm, less than 500 μm as well, more than 10 μm, less than 400 μm are better.
As the polarizing coating 6 of the cutting object of laser cutting device 10, as long as just can with known polarizing coating.As the polarizing coating in the present invention, usually use the polarizing coating of long size, but also can with the polarizing coating of short size or plate shape.So-called long size refers to that the length of the polarizing coating in cut direction is more than 10m, and so-called short size refers to more than 2m, discontented 10m, and so-called plate shape refers to more than 10cm, discontented 2m.
As polarizing coating 6; structure as follows specifically: TAC(Triafol T of fitting on the two sides of polarizer film) film, COP(cyclic olefin polymer) film etc. is as diaphragm, being pressed on relative to laser cutting device 10 by bonding agent by protective film is on the TAC film of reverse side.Among polarizing coating 6, as the polarization element film being positioned at center, the diaphragm of TAC etc. can be enumerated to fit to and with iodine etc., polyvinyl alcohol film to be dyeed and film on the film stretched etc.Again, also can use polyenoid (the Port リ エ Application) alignment film etc. of hydrophilic macromolecule film of partially polymerized materialization polyvinyl alcohol mesentery, the partly-hydrolysed film of ethene-vinyl acetate base co-polymer system, cellulose mesentery etc. etc., the processed thing of polyvinyl alcohol or the dehydrochlorination handled thing of polychloride vinyl etc., replace above-mentioned polyvinyl alcohol film.
Include the gross thickness of polarizing coating 6 and diaphragm, be not particularly limited, but desirable more than 100 μm, less than 500 μm.Again, the thickness of the polarization element film in polarizing coating 6, is generally more than 10 μm, less than 50 μm.In addition, in the practicality of polarizing coating 6 in unchallenged scope, other layers beyond also can containing above-mentioned 3 layers again.
As said protection film, also useful polyester film, PET (Port リ エ チ レ Application テ レ Off タ ラ ー ト) film etc.As for thickness and the width of said protection film, there is no particular limitation, but from being used as the viewpoint of diaphragm of polarizing coating, preferably use the thickness of such as more than 5 μm, less than 50 μm, the diaphragm of the width of more than 200mm, below 1500mm.
The cutting of the polarizing coating 6 carried out with laser cutting device 10 carries out while mobile laser cutting device 10 or polarizing coating 6.Cut surface can be formed thus on polarizing coating 6.Specifically, can cut while mobile polarizing coating with cutting cutter described later.Fixed laser cutter sweep 10 when carrying out cutting with the state transmitting polarizing coating 6, can carry out stable cutting, be therefore suitable.
The what is called to polarizing coating " cutting " in the present invention, refers to and " at least cuts a part " to polarizing coating, also comprises processing polarizing coating being formed to prescribed depth.Such as, the cutting, hemisect, mark processing etc. of the end of polarizing coating are also contained in the behavior of " cutting ".
[cutting cutter]
Secondly, cutting cutter 20 of the present invention is described.Fig. 3 is the sectional view that cutting cutter 20 of the present invention is shown.Cutting cutter 20 comprises laser cutting device 10, unreels portion 11, transfer roller 12,12a, 12b, 12c, 12d, 12e, below 12f(slightly " 12 ~ 12f "), linear measure longimetry meter 14 and reeling end 13a, 13b.
Unreeling portion 11 is the components keeping the polarizing coating 6 of long size shape and unreel to transfer roller 12.As unreeling portion 11, there is no particular limitation, availablely knownly unreels portion.In cutting cutter 20, the axle of available cylindrical shape as unreeling portion 11, and keeps wrapped around the paper tube of polarizing coating 6 or plastic tube etc.There is in the side unreeling portion 11 the not shown whirligig that the portion that unreels 11 is rotated, by whirligig, the portion that unreels 11 is rotated, and to direction of transfer, polarizing coating 6 is unreeled.The tension force apply polarizing coating 6 and the transfer rate of polarizing coating set by whirligig.In addition, suitably can adjust the height in the portion of unreeling 11 and unreel the position in the horizontal direction in portion 11.
Unreel portion 11 and be arranged at a place, but also equally with reeling end 13a, 13b can be arranged at two places.Like this, before the polarizing coating 6 in the portion that unreels 11 of a side is unreeled entirely, can be connected with the polarizing coating in the portion that unreels of the opposing party, and the time exchanging polarizing coating reel can be reduced.
Transfer roller 12 ~ 12f is configured in cutting cutter 20 along the transfer path of polarizing coating 6.As long as the configuration place of each transfer roller is properly changed according to the transfer path of polarizing coating 6.Above-mentioned transfer roller is not particularly limited, and uses known component just can.Again, the diameter of above-mentioned transfer roller and width also do not limit.Usually, the width of transfer roller is about 1.5m ~ 2.5m.Also can comprise at cutting cutter 20 the contact roller be pressed in by polarizing coating 6 on transfer roller.
Between transfer roller 12b and transfer roller 12c, be configured with laser cutting device 10.Like this, just can as long as laser cutting device 10 is configured between the portion of unreeling 11 and reeling end 13 in this wise.About the structure of laser cutting device 10 as above-mentioned.
Reeling end 13a, 13b are the components of the polarizing coating 6 batching cut processing.Same with unreeling portion 11, be provided with the not shown whirligig that reeling end 13a, 13b are rotated in the side of reeling end 13a, 13b, by whirligig, reeling end 13a, 13b rotated, and batch polarizing coating 6 in the transmission direction.The tension force apply polarizing coating 6 and the transfer rate of polarizing coating set by whirligig.In addition, height and the position in the horizontal direction of reeling end 13a, 13b can suitably be adjusted.
According to cutting cutter 20, with unreeling portion 11 and reeling end 13a transmission polarizing coating 6.The transfer rate of polarizing coating is not particularly limited, as an example, and desirable more than 1m/s, below 100m/s.
Fig. 4 is the top view of the cutting process that polarizing coating 6 is shown.As shown in (a) ~ (c) of Fig. 4, along with polarizing coating 6 is transmitted, laser cutting device 10 is utilized to form otch S on polarizing coating 6.In Fig. 4, laser cutting device 10 is set to cut the end perimeter of polarizing coating 6.This is the situation of the end of cutting polarizing coating 6.The setting position of laser cutting device 10 does not do special restriction, as long as can irradiate laser on polarizing coating 6.Such as, if arrange laser cutting device 10 laser to be irradiated to the middle body of polarizing coating 6, then polarizing coating 6 can be divided into 2.
Because cutting cutter 20 of the present invention is provided with laser cutting device 10, even therefore when making polarizing coating 6 acceleration or deceleration, in the transfer rate hour of polarizing coating, also can use laser oscillator 1 with high-output power.As a result, can the high-output power side of acquisition laser oscillator 1 time the stability that exports of advantage.On the other hand, owing to lowering the energy be irradiated on polarizing coating with optical splitter 4, thus can the high-output power side of suppression laser oscillator 1 time problem and polarizing coating cut surface on the deterioration of quality.
In addition, following form is comprised in the present invention.
In laser cutting device of the present invention, the power output of above-mentioned laser oscillator is more than 30W, below 400W, and the transmission laser of above-mentioned optical splitter and the ratio of reflects laser are 3: 7 ~ 7: 3 as well.
When the power output of above-mentioned laser oscillator is more than 30W, below 400W, if the ratio of the transmission laser of optical splitter and reflects laser is in above-mentioned scope, so can be used in the cutting of polarizing coating suitably.
Again, in laser cutting device of the present invention, above-mentioned laser oscillator is CO
2laser oscillator as well.
CO
2laser oscillator is high-output power, can be applicable to the cutting of polarizing coating.
Again, cutting cutter of the present invention, comprises the portion that unreels and the reeling end batching polarizing coating that unreel polarizing coating, is configured with above-mentioned laser cutting device above-mentioned unreeling between portion and reeling end.
Cutting cutter of the present invention because comprising laser cutting device, even if therefore also laser oscillator can be used with high-output power in the transfer rate hour of polarizing coating.As a result, can the high-output power side of acquisition laser oscillator time advantage and the stability of power output.On the other hand, because being lowered the energy be irradiated on polarizing coating by optical splitter, thus can the high-output power side of suppression laser oscillator time problem and polarizing coating cut surface on the deterioration of quality.
In addition, the present invention does not limit above-mentioned each embodiment, various change can be carried out in the scope shown in claim, about the technological means that discloses respectively in appropriately combined different embodiment and the embodiment obtained be also included in the technical scope of the present invention.
Embodiment
[embodiment 1]
The cutting of polarizing coating is implemented with the cutting cutter 20 described in Fig. 3.The structure of polarizing coating 6 is; by the order close to the collector lens 5 of laser cutting device 10; lamination PET film (38 μm), adhesive linkage (22 μm; adhesive linkage is peeled off together with protective layer), TAC film (80 μm), polyvinyl alcohol film (30 μm) and COP(cyclic olefin polymer) film (70 μm) as diaphragm, and on COP film across adhesive linkage lamination PET film (38 μm) as barrier film.
First, utilize the whirligig unreeling portion 11 and reeling end 13a, make polarizing coating 6 from the state that polarizing coating 6 is static, after five seconds, accelerate to 50m/s.During making it accelerate to 50m/s, implement the cutting of polarizing coating 6 with following condition.
Laser oscillator: CO
2laser instrument
The power output of laser oscillator: more than 20W, below 280W
Optical maser wavelength: 9.4 μm
Laser frequency: 20kHz
The spotlight diameter of L6: 54 μm
The ratio of transmitted light and reverberation: 5: 5
[comparative example 1]
The comparison cutter sweep eliminating optical splitter 4 from the laser cutting device 10 of cutting cutter 20 is used to implement the cutting of polarizing coating 6.The structure of polarizing coating 6 is identical with embodiment 1.Polarizing coating 6 is made to accelerate to 50m/s similarly to Example 1.Again, the condition of cutting is as follows.
Laser oscillator: CO
2laser instrument
The power output of laser oscillator: more than 10W, below 140W
Optical maser wavelength: 9.4 μm
Laser frequency: 20kHz
The spotlight diameter of L6: 54 μm
Fig. 5 is the side view that the polarizing coating 6 cut by embodiment 1 and comparative example 1 is shown.The polarizing coating 6 of (a) of Fig. 5 to be (b) of the polarizing coating 6, Fig. 5 of embodiment 1 be comparative example 1.From both results, the polarizing coating 6 of comparative example 1 produces distortion because of thermal expansion on its cross section.But also the block observed because of thermal expansion generation in uppermost PET film.On the other hand, the polarizing coating 6 of embodiment 1 is different from comparative example 1, and cut surface does not produce distortion.And, uppermost PET film does not generate block.According to cutting cutter of the present invention (laser cutting device), even the transfer rate that 50m/s is such, also can suppress the quality deterioration on the cut surface of polarizing coating, demonstrate superiority of the present invention significantly.
And, whether the cut surface of polarizing coating 6 is well tested.Test method is, peels off barrier film from cut polarizing coating, is attached on glass plate by COP face across adhesive linkage.If COP film produces distortion, then bubble is mixed between COP film and glass plate.Polarizing coating 6 after the cutting of embodiment 1 and comparative example 1 is tested, after attaching, the polarizing coating 6 of embodiment 1 does not observe bubble and is mixed into, but on the polarizing coating 6 of comparative example 1, observe being mixed into of bubble after attaching.This be because of polarizing coating 6 among the result that causes of the deformation state of COP film of the 4th layer from above.Also superiority of the present invention is proved from this result.
Industrial utilizability
Laser cutting device of the present invention is the device that can be used as cutting suitably polarizing coating.Therefore, the present invention can be used in the field using polarizing coating widely.
The explanation of symbol
1 laser oscillator 2 optical beam expander 3 speculum 4 optical splitter
5 collector lens 6 polarizing coating 10 laser cutting devices 11 unreel portion
12,12a, 12b, 12c, 12d, 12e, 12f transfer roller 13a, 13b reeling end
14 linear measure longimetry meter 20 cutting cutter L1 ~ L6 laser S otch.
Claims (3)
1. a laser cutting device, is irradiate laser and the laser cutting device cut to by the polarizing coating transmitted, it is characterized in that,
Comprise:
The laser oscillator of oscillating laser;
By the laser reflection that vibrated by the laser oscillator speculum to polarizing coating; And
Be configured at collector lens between polarizing coating and speculum, that described laser is carried out to optically focused,
Between described speculum and collector lens, be provided with the optical splitter of laser described in transmittance and reflectance,
The power output of described laser oscillator is more than 30W, below 400W,
The ratio laser of described optical splitter being carried out to transmission and reflection is 3: 7 ~ 7: 3.
2. laser cutting device as claimed in claim 1, is characterized in that,
Described laser oscillator is CO
2laser oscillator.
3. a cutting cutter, is characterized in that,
Comprise the polarizing coating portion that unreels unreeled and the reeling end batching polarizing coating,
Unreel between portion and reeling end described, be provided with the laser cutting device described in claim 1 or 2.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010226778A JP5800486B2 (en) | 2010-10-06 | 2010-10-06 | Laser cutting apparatus, slitter machine equipped with the same, and laser cutting method |
| JP2010-226778 | 2010-10-06 | ||
| PCT/JP2011/071924 WO2012046587A1 (en) | 2010-10-06 | 2011-09-26 | Laser cutter and slitter with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103153526A CN103153526A (en) | 2013-06-12 |
| CN103153526B true CN103153526B (en) | 2016-01-20 |
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ID=45927582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180048178.8A Active CN103153526B (en) | 2010-10-06 | 2011-09-26 | Laser cutting device and there is the cutting cutter of this device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5800486B2 (en) |
| KR (2) | KR20130106847A (en) |
| CN (1) | CN103153526B (en) |
| TW (1) | TWI501829B (en) |
| WO (1) | WO2012046587A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6020884B2 (en) * | 2012-05-31 | 2016-11-02 | 住友化学株式会社 | Laser processing method |
| KR101817388B1 (en) | 2014-09-30 | 2018-01-10 | 주식회사 엘지화학 | Cutting method for the polarizing plate, polarizing plate cut usuing the same |
| WO2019103137A1 (en) * | 2017-11-27 | 2019-05-31 | 日東電工株式会社 | Laser processing method for plastic film and plastic film |
| CN112277389A (en) * | 2019-07-25 | 2021-01-29 | 林紫绮 | Paper tube manufacturing method for increasing stiffness of tube and paper tube structure thereof |
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| JP2012076143A (en) | 2012-04-19 |
| WO2012046587A1 (en) | 2012-04-12 |
| CN103153526A (en) | 2013-06-12 |
| KR20170045376A (en) | 2017-04-26 |
| JP5800486B2 (en) | 2015-10-28 |
| TW201221262A (en) | 2012-06-01 |
| KR20130106847A (en) | 2013-09-30 |
| TWI501829B (en) | 2015-10-01 |
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