CN101415648A - Glass cutting apparatus with bending member and method for cutting glass using thereof - Google Patents
Glass cutting apparatus with bending member and method for cutting glass using thereof Download PDFInfo
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- CN101415648A CN101415648A CNA2006800541148A CN200680054114A CN101415648A CN 101415648 A CN101415648 A CN 101415648A CN A2006800541148 A CNA2006800541148 A CN A2006800541148A CN 200680054114 A CN200680054114 A CN 200680054114A CN 101415648 A CN101415648 A CN 101415648A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/09—Severing cooled glass by thermal shock
- C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
- C03B33/082—Severing cooled glass by fusing, i.e. by melting through the glass using a focussed radiation beam, e.g. laser
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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
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/0222—Scoring using a focussed radiation beam, e.g. laser
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/03—Glass cutting tables; Apparatus for transporting or handling sheet glass during the cutting or breaking operations
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/037—Controlling or regulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Laser Beam Processing (AREA)
Abstract
Disclosed herein is glass cutting apparatuses and methods of cutting glass using the glass cutting apparatuses. More particularly, disclosed is a glass cutting apparatus which cuts a glass sheet (140) by forming a crack in the glass sheet using a laser beam and by lifting the glass sheet using a bending unit (160), and a method of cutting glass using the glass cutting apparatus.
Description
Technical field
The method that the present invention relates generally to the glass cutting device and use this glass cutting device glass-cutting, more particularly, thereby relate to a kind of by using laser beam in sheet glass, to form crackle and utilize bending unit to raise the glass cutting device that sheet glass cuts sheet glass, and the method for using this glass cutting device glass-cutting.
Background technology
In conventional art, use end that adamantine blade is housed and come cutting glass plate.
Yet, the problem that traditional cutting method exists the second-rate of sheet glass cut end and this method not to be suitable for cutting big sheet glass or plate glass.
In order to address the above problem, adopt a kind of method of utilizing the laser beam cutting glass plate recently.In this method, sheet glass is placed on the platform unit, then, with laser beam irradiation to sheet glass, thereby sheet glass is cut.
In this case, utilization repulsive force that newly-generated interface (cut end of sheet glass) is located to produce between the part that is cut at sheet glass when cutting glass plate comes cutting glass plate.Yet concerning also big thereby heavier sheet glass, frictional force is very high.
This frictional force becomes the resistance that hinders cutting.Therefore, cutting process is not easy to carry out, even and finished cutting process, but the quality of sheet glass cut end is also very low.
Summary of the invention
The technical problem that solves
In traditional cutting unit, because the platform unit is that face contacts with sheet glass, thereby the relative high frictional force of existence between platform unit and the sheet glass.Therefore, when cutting glass plate, be cut part about sheet glass and be not easy to slide along left and right directions with respect to line of cut.
Therefore, can not successfully carry out cutting process, and the quality of sheet glass cut end can suffer damage also.And because cutting process needs big energy, thereby efficient is low and the waste energy.
Technical scheme
Therefore, the present invention is directed to the problems referred to above that occur in the prior art, and the purpose of this invention is to provide a kind of glass cutting device with bending unit, described glass cutting device makes the frictional force minimum between sheet glass and the platform unit when cutting glass plate, thereby use just cutting glass plate easily of relatively little energy, the present invention also provides the method for using this glass cutting device glass-cutting.
Beneficial effect
Have the glass cutting device of bending unit and use in the method for this glass cutting device glass-cutting in the present invention, have the following advantages.
At first, because bending unit is arranged to make its upper end to be higher than the unitary upper surface of platform, so the middle portion of sheet glass is elevated and opposed end is sagging.Thereby stress concentration is on sheet glass middle portion to be cut.Like this, even use also cutting glass plate easily of few relatively energy.
Specifically, bending unit is arranged in the rear of laser generation unit, so bending unit upwards pushes the part that is cut of sheet glass, thereby can easily carry out cutting process.
The second, can come the degree of crook of feed glass plate by the height of regulating bending unit.Therefore, according to the thickness and the size of sheet glass, can regulate the pressure intensity on the required part that is applied to sheet glass.
The 3rd owing in the platform unit, be formed with a plurality of aspirating holes, therefore can prevent that undesirable slip from appearring in sheet glass, and aspirating hole and bending unit can to make the middle portion of sheet glass together be that part to be cut is further crooked.Therefore, stress concentrates on the required part of sheet glass more, thereby can use few relatively energy cutting glass plate more easily.
The 4th, bending unit combines with the laser generation unit by support unit, and therefore, although simple in structure, bending unit also can be configured to do mass motion with the laser generation unit.
The 5th, support unit along horizontal expansion, centers on the unitary side of platform from the laser generation unit, and combines with bending unit.Therefore, can prevent that when cutting support unit from hindering sheet glass.
The 6th, support unit can be installed in the rear portion of laser generation unit and combine with bending unit, so this cutting unit can cut the sheet glass of virtually any size.In addition, support unit can be made thin and make its sharp edges, so support unit promotes the sheet glass cut end round about, thereby cutting process is more prone to and carries out apace.
The 7th, can be provided with and make laser generation unit first delivery unit that seesaws and second delivery unit that bending unit is seesawed.In this case, utilize control unit to control first and second delivery units, thereby make laser generation unit and bending unit with identical speed motion, therefore to sheet glass the time, can utilize bending unit upwards to push sheet glass laser beam irradiation at the laser generation unit.
In addition, because bending unit and laser generation unit are not by the direct combination of syndeton, therefore sheet glass can not be subjected to any obstruction when cutting glass plate, thereby this cutting unit can cut the sheet glass of virtually any size.
The 8th, the present invention adopts the method that forms crackle and raise sheet glass in sheet glass to come cutting glass plate.Therefore, use low-energy relatively laser beam also can easily cut big sheet glass, and the quality of sheet glass cut end is also higher.
The 9th, because bending unit moves with the laser generation unit with the speed identical with the laser generation unit, and simultaneously bending unit upwards pushes sheet glass, so the relation maintenance between the position that is elevated of the position of laser beam irradiation to the sheet glass and sheet glass is constant.Therefore, can regulate intensity of laser beam more easily.
The tenth, after raising sheet glass, be lower than the intensity raised before the sheet glass with laser beam irradiation to sheet glass, thereby saved energy, that is to say, use minimum energy cuts sheet glass, and guarantee the better quality of sheet glass cut end.
In addition, reduce intensity of laser beam gradually, therefore can use the needed least energy of cutting glass plate to come cutting glass plate, thereby save energy and improve the quality of sheet glass cut end from front end to the tail end of sheet glass.
In addition, under the sheet glass tail end is circular situation, be higher than the sheet glass tail end by the laser beam intensity under the situation of straight cuts with laser beam irradiation to sheet glass.Like this, be circular or regulated intensity of laser beam according to the sheet glass tail end, thereby use minimum energy cuts sheet glass, and improve the quality of sheet glass cut end by the situation of straight cuts.
Description of drawings
Fig. 1 is the stereographic map of the glass cutting device of first embodiment of the invention;
Fig. 2 is the side-view of the glass cutting device of first embodiment of the invention;
Fig. 3 is the frontview of the glass cutting device of first embodiment of the invention;
Fig. 4 is the stereographic map of the glass cutting device of second embodiment of the invention;
Fig. 5 is the side-view of the glass cutting device of second embodiment of the invention;
Fig. 6 is the stereographic map of the glass cutting device of third embodiment of the invention; And
Fig. 7 illustrates the present invention's form that laser beam intensity changes when cutting glass plate.
Embodiment
To achieve these goals, on the one hand, the invention provides a kind of glass cutting device, it comprises: the laser generation unit, its produce laser beam and when moving forwards or backwards with laser beam irradiation to sheet glass; The platform unit, it is arranged on laser generation unit below and support glass plate, and the place is formed with guide channel in the unitary mid-way of described platform; Bending unit, it is arranged in the guide channel and the adjoining position of laser generation unit, and the upper end of described bending unit is higher than the unitary upper surface of platform and contacts with sheet glass; And the moving member that makes the bending unit motion.
Bending unit can comprise: the main body that seesaws along guide channel; Be arranged on the upper end of described main body and the roller or the spheroid of contact glass plate; And the bending height that is used to regulate the height of roller or spheroid is regulated parts.
In addition, in the platform unit, can be formed with the aspirating hole that is communicated with vacuum pump.
Moving member can comprise with bending unit in conjunction with and be fixed to the support unit of laser generation unit.This support unit can center on the unitary side of platform from the laser generation unit along horizontal expansion, and combines with bending unit.
Moving member can comprise with bending unit in conjunction with and be fixed to the support unit of laser generation unit.This support unit can be installed in the rear portion of laser generation unit and combine with bending unit.
Moving member can comprise: first delivery unit that the laser generation unit is seesawed; Second delivery unit that bending unit is seesawed; And the control unit of controlling the movement velocity of first delivery unit and second delivery unit.
On the other hand, the invention provides a kind of method of using the laser beam glass-cutting, said method comprising the steps of: thus laser beam irradiation is formed the irradiating step of crackle to the sheet glass in sheet glass; And the cutting step of partly raising cutting glass plate by the sheet glass that will be formed with crackle.
In cutting step, when raising sheet glass, bending unit can move with the laser generation unit with the speed identical with the movement velocity of the laser generation unit that irradiates laser beam.
In irradiating step, in above-mentioned cutting step, raise sheet glass after, can be lower than the intensity raised before the sheet glass with laser beam irradiation to sheet glass.
In irradiating step, can reduce intensity of laser beam gradually from front end to the tail end of sheet glass.
In irradiating step, under the sheet glass tail end is circular situation, can be higher than the sheet glass tail end by the intensity under the situation of straight cuts with laser beam irradiation to sheet glass.
With reference to the accompanying drawings the preferred embodiments of the present invention are described in detail.
Fig. 1 is the stereographic map of the glass cutting device of first embodiment of the invention.Fig. 2 is the side-view of the glass cutting device of first embodiment of the invention.Fig. 3 is the frontview of the glass cutting device of first embodiment of the invention.
As Fig. 1～shown in Figure 3, first embodiment comprises laser generation unit 110, platform unit 120, reflector 130, support unit 150 and bending unit 160 down.
According to the mode identical with traditional laser generation unit 110, laser generation unit 110 produces laser beams and it is shone on the sheet glass 140.Laser generation unit 110 can seesaw.
Following reflector 130 be arranged in laser generation unit 110 under, and move, just along the space motion that between two main bodys of platform unit 120, limits along guide channel 122.
Following reflector 130 is used to reflect the laser beam that comes out from 110 irradiations of laser generation unit.
Preferably, following reflector 130 is for circular and have a thickness size much at one with laser generation unit 110.
In addition, preferably, below reaching laser generation unit 110 above following reflector 130 and the sheet glass 140, be provided with reflector (not shown), therefore, be subjected to the reflection of reflector on this again by following reflector 130 laser light reflected bundles, that is to say that laser beam can shine on the sheet glass 140 repeatedly.
Utilize such structure, can have relatively little size, and laser beam can be always exactly by reflector 130 reflections down descending reflector 130 to manufacture.
As shown in figures 1 and 3, support unit 150 along horizontal expansion, centers on the edge of platform unit 120 from laser generation unit 110, and is connected with bending unit 160 with following reflector 130.
Therefore, following reflector 130 and bending unit 160 form as one with laser generation unit 110 by support unit 150 and move with laser generation unit 110.
Here, vertical member 152 comprises two main bodys that mutually combine slidably.Altitude mixture control parts 155 are installed on vertical member 152, therefore can utilize altitude mixture control parts 155 to regulate the length of vertical member 152.
Well-known micrometer as altitude mixture control parts 155, therefore can accurately, easily be regulated the length of vertical member 152.Utilize altitude mixture control parts 155 also can regulate down the height of reflector 130 and bending unit 160.
In addition, can on horizontal part 151 on the support unit 150 or following horizontal part 153, horizontal length be installed and regulate parts (not shown), thereby regulate their horizontal length.
In addition, bending unit 160 be disposed in the front lower place of laser generation unit 110 or the back lower place and with the adjoining position of laser generation unit 110.
That is, bending unit 160 is disposed in down the place ahead or the rear of reflector 130, and with reflector 130 motions down.
As shown in Figures 2 and 3, the upper end of bending unit 160, promptly roller 161 or above-mentioned spheroid are arranged to be higher than the upper surface of platform unit 120.
Shown in Fig. 3 (a), single roller 161 can be set, so roller 161 aligns along same vertical line with laser generation unit 110 and following reflector 130 on the position corresponding with the central axis of main body 163.Alternatively, shown in Fig. 3 (b), a roller 161 can be set respectively on the opposite side portion of main body 163, that is to say, two rollers 161 can be set, and therefore, the vertical axis that connects laser generation unit 110 and following reflector 130 passes between two rollers 161.
Because bending unit 160 has said structure, as shown in Figure 3, when being placed on sheet glass 140 on the platform unit 120, because the upper end of bending unit 160 is higher than the upper surface of platform unit 120, therefore sheet glass 140 middle portions that contact with the upper end (being roller 161) of bending unit 160 project upwards, and the opposed end of while sheet glass 140 is sagging and contact platform unit 120 owing to their weight.Thereby sheet glass 140 has formed the shape downward-sloping from the centre part to opposed end.
In above-mentioned state, stress in bending concentrates on the middle portion of sheet glass 140.At this moment, use laser generation unit 110 with laser beam irradiation to the middle portion of sheet glass 140, thereby can use few relatively energy that sheet glass 140 is cut.
In addition, in the present invention, bending unit 160 can be arranged on down the rear of reflector 130.Therefore, even have only very weak laser beam irradiation to sheet glass 140, because bending unit 160 upwards pushes sheet glass 140, therefore also cutting glass plate 140 easily.
Here, as above under the situation that is provided with single roller 161 described with reference to Fig. 3 (a), roller 161 in sheet glass 140 formed line of cut under the position upwards push sheet glass 140.As above under the situation that is provided with two rollers 161 described with reference to Fig. 3 (b), these two rollers 161 in sheet glass 140 formed line of cut below the opposite side portion place upwards push sheet glass 140.
Simultaneously, preferably, form a plurality of aspirating holes 125 to such an extent that pass platform unit 120 and be connected with vacuum pump.
Therefore, after being placed on sheet glass 140 on the platform unit 120, discharge the air that between platform unit 120 and sheet glass 140, exists by aspirating hole 125, thus the direction that makes sheet glass 140 deflections allow sheet glass 140 and platform unit 120 closely contact.Like this, the stress that is caused by bending unit 160 can concentrate on the middle portion of sheet glass 140 more consumingly, and can prevent that undesirable motion that the roller 161 owing to bending unit 160 causes from appearring in sheet glass 140.
Here, preferably, the quantity of aspirating hole 125 and position are symmetric based on the line of cut of sheet glass 140.In addition, preferably suction force is uniformly applied on the sheet glass 140.
The above results is achieved in that sheet glass 140 is placed on the platform unit 120, on sheet glass 140 left and right sides with respect to sheet glass 140 lines of cut, aspirating hole 125 is arranged to quantity equates and be positioned at the symmetric position place.
Fig. 4 is the stereographic map of the glass cutting device of second embodiment of the invention.Fig. 5 is the side-view of the glass cutting device of second embodiment of the invention.
As shown in Figure 4 and Figure 5, second embodiment comprises laser generation unit 210, platform unit 220, following reflector 230, support unit 250 and bending unit 260.
As shown in Figure 5 and Figure 6, support component 250 is arranged on the rear of laser generation unit 210 and combines with following reflector 230 and bending unit 260.
Therefore, following reflector 230 and bending unit 260 form as one by support unit 250 and laser generation unit 210, thereby reflector 230 moves with laser generation unit 210 down.
Here, vertical member 252 comprises two main bodys that mutually combine slidably.Altitude mixture control parts 255 are installed on vertical member 252, therefore can utilize altitude mixture control parts 255 to regulate the length of vertical member 252.
In addition, vertical member 252 is disposed in the rear of bending unit 260.
Well-known micrometer as altitude mixture control parts 255, therefore can accurately, easily be regulated the length of vertical member 252.Utilize altitude mixture control parts 255 also can regulate down the height of reflector 230.
Preferably, this part vertical member 252 that contacts with sheet glass 240 is thinner, and altitude mixture control parts 255 are arranged on vertical member 252 upper ends, that is, be arranged on that part of vertical member 252 of contact glass plate 240 not.
In having the present embodiment of said structure, after utilizing the laser beam that shines from laser generation unit 210 on the sheet glass 240 this sheet glass, to form line of cut to be the slit, follow vertical member 252 to enter in the line of cut in the laser beam back, and the part that is cut of sheet glass 240 is separated, therefore cutting glass plate 240 more promptly.
Fig. 6 is the stereographic map of the glass cutting device of third embodiment of the invention.
As shown in Figure 6, the 3rd embodiment comprises laser generation unit 310, platform unit 320, following reflector 330, moving member, bending unit 360 and control unit (not shown).
The structure of laser generation unit 310, the platform unit 320 that is provided with guide channel 322 and aspirating hole 325, following reflector 330 and bending unit 360 is identical with first embodiment, therefore omit they further specify, and main account for motion member and control unit.
Moving member comprises to be made first delivery unit 350 that laser generation unit 310 seesaws and makes down reflector 330 and/or second delivery unit 360 that bending unit 360 seesaws.
When slide block 353 when first base component 354 moves forwards or backwards, vertical support bar 352 and horizontal support bar are with slide block 353 motions.Therefore, laser generation unit 310 also moves forwards or backwards along guide channel 322.
Here, utilize well-known electric motor and gear mechanism that slide block 353 is moved automatically.Integrated structure between each slide block 353 and each first base component 354 can be realized by well-known track structure, perhaps alternatively, can realize by following structure: in first base component 354, be formed with chute, slide block 353 is provided with projection, thereby and should projection inserts in the above-mentioned chute and make slide block 353 slidably.Like this, the integrated structure between each slide block 353 and each first base component 354 may be implemented as a kind of in the various known slide constructions.
Control unit is controlled first delivery unit 350 and second delivery unit 360.In detail, control unit is controlled first delivery unit 350 and second delivery unit 360, thereby makes laser generation unit 310, following reflector 330 and bending unit 360 with identical speed motion.
Therefore, laser generation unit 310 and following reflector 330 by first delivery unit 350, second delivery unit 360 and control unit with identical speed motion, therefore down reflector 330 be positioned at all the time laser generation unit 310 under.In addition, upwards push the place ahead or the rear that glass sheets bending unit 360 is disposed in down reflector 330.
In this structure, because bending unit 360 upwards pushes sheet glass, so stress concentration is being bent on that part of sheet glass of raising unit 360.Utilize laser generation unit 310 to cut that part of sheet glass of stress concentration.Therefore, can use few relatively energy cuts sheet glass.In addition, bending unit 360 is being arranged under the situation at laser generation unit 310 rears, bending unit 360 can be used for the part that is cut of sheet glass is promoted in opposite direction.
Simultaneously, the cutting unit of the present invention that use has said structure comes the method for cutting glass plate to comprise: thus laser beam irradiation is formed the irradiating step of crackle to the sheet glass in sheet glass, and by raising the cutting step that part of sheet glass that is formed with crackle comes cutting glass plate.
In irradiating step, cutting glass plate fully perhaps alternatively, preferably forms crackle and does not cut fully in sheet glass.In cutting step, the part that is cut of sheet glass is separated fully along crackle by raising sheet glass.
At this moment, the roller that is arranged on the bending unit upper end moves along the crackle that forms in sheet glass, thereby makes the crackle part of sheet glass separate the part that this crackle is just the weakest along crackle.
Utilization is carried out cutting step with the bending unit of the speed motion identical with the laser generation unit.Because this glass cutting device constituted bending unit move with identical speed with the laser generation unit, thereby laser beam irradiation is constant in position on the sheet glass and the relation maintenance that upwards pushes between the position of sheet glass.Therefore, as described below, can more easily regulate intensity of laser beam.
Simultaneously, in irradiating step, in above-mentioned cutting step, raise sheet glass after, will be lower than raise the intensity before the sheet glass laser beam irradiation to sheet glass.
The reason of doing like this is: when raising the sheet glass that utilizes laser beam to be formed with crackle, stress in bending concentrates on the sheet glass middle portion that is elevated, simultaneously, sheet glass be cut the end separated from one another, therefore and the part that is cut of sheet glass is tended to move away from each other, even utilize also cutting glass plate easily of low intensive relatively laser beam.
In addition, in irradiating step, weaken intensity of laser beam gradually to tail end from the front end of sheet glass.
The reason of doing like this is: when cutting operation carries out forward, the end that is cut of sheet glass is separated gradually away from each other, and the part that is cut of sheet glass is tended to move along direction away from each other more consumingly, therefore, even also cutting glass plate easily of the laser beam intensity that has reduced the irradiation sheet glass.
In addition, preferably, with the sheet glass tail end position of 10mm at interval approximately, with the laser beam irradiation of minimum intensity to sheet glass.
In addition, in irradiating step, be under the situation of circle at the sheet glass tail end, intensity is higher than the sheet glass tail end is made the laser beam irradiation of straight cuts situation to sheet glass by laser beam.
Mode with experimental result in the form of Fig. 7 has illustrated the method for regulating laser beam intensity.
Fig. 7 (a) is illustrated in the sheet glass tail end to be laser beam intensity changes during cutting glass plate under the circular situation form.Fig. 7 (b) is illustrated in the sheet glass tail end by laser beam intensity changes during cutting glass plate under the situation of straight cuts form.
In this experiment, use PD20042 ＂ sheet glass, and the cutting speed in feet per minute that irradiates the laser generation unit of laser beam is 150mm/s.
In the situation of Fig. 7 (a), use front end and tail end to be the sheet glass of circle (by circular chamfering (R-chamfering)), and the Cutting Length of sheet glass is 1930mm, cutting width is 1163mm.
In order to make sheet glass form crackle, at initial period, with intensity be the laser beam irradiation of 800W to the sheet glass to form crackle.State when raising sheet glass (some a1) can be reduced to 650W with intensity of laser beam.In the pars intermedia office of sheet glass, intensity of laser beam further can be reduced to 600W.From with sheet glass tail end at interval approximately the position of 10mm (some a2), irradiate the laser beam that intensity is 400W.
Therefore, can understand like this, raising before the sheet glass,, need high relatively laser beam intensity promptly at initial period, and after raising sheet glass, promptly near middle portion, need the laser beam intensity of reduction, in the end the stage, promptly near the sheet glass tail end, need the laser beam intensity that further reduces.
In the situation of Fig. 7 (b), the sheet glass of use has circular front end and by the tail end of laser beam straight cuts, and the Cutting Length of sheet glass is 581mm, and cutting width is 1930mm.
In order to make sheet glass form crackle, at initial period, with intensity be the laser beam irradiation of 800W to the sheet glass to form crackle.State when raising sheet glass (some b1) can be reduced to 600W with intensity of laser beam.From with sheet glass tail end at interval approximately the position of 10mm (some b2), needing intensity is the laser beam of 100W.
Therefore, can understand like this, raising before the sheet glass,, need high relatively laser beam intensity promptly at initial period, and after raising sheet glass, promptly near middle portion, need the laser beam intensity of reduction, in the end the stage, promptly near the sheet glass tail end, need the laser beam intensity that further reduces.
As what in the above-mentioned form that provides experimental result, recognized,, must irradiate the laser beam intensity (800W) that is enough in sheet glass, form crackle at initial period.After raising sheet glass, with intensity of laser beam be reduced to low relatively intensity (650W, 600W).At last, near after the sheet glass tail end, (400W 100W), therefore, can use few relatively energy to come cutting glass plate, thereby make the cut end of sheet glass have higher quality further to reduce intensity of laser beam at laser beam.
In addition, can understand by comparison diagram 7 (a) and Fig. 7 (b), because increase along with width of glass sheet, the possibility that partly moves in opposite directions that is cut of the sheet glass that is elevated increases, therefore, under the situation of Fig. 7 (a), width is that the sheet glass of 1633mm can utilize intensity to cut near the sheet glass tail end for the laser beam of 400W, and under the situation of Fig. 7 (b), width is that the sheet glass of 1930mm can utilize intensity to have only the laser beam of 100W to cut near the sheet glass tail end.
In addition, depend on the sheet glass tail end and be the circle shown in Fig. 7 (a), or carried out straight cuts by laser beam, needed laser beam intensity can change thereupon.
That is to say, be that laser beam intensity need be higher than the sheet glass tail end by the situation of laser beam straight cuts under the situation of circle at the sheet glass tail end.
At this moment, last reflector and following reflector can be separately positioned on the above and below of sheet glass, therefore when cutting glass plate laser beam are shone on the sheet glass repeatedly.In this case, preferably, the diameter of last reflector is about 1 inch (inch), and the distance between last reflector and the following reflector is about below the 15mm.
Last reflector be arranged in down reflector directly over, and have at the center of last reflector and to allow the hole that sees through that laser beam passes.
Gou Zao reason is like this: if it is very far away to go up reflector distance very big or that go up between reflector and the following reflector, the echo area that then goes up between reflector and the following reflector increases, and the quantity of institute's laser light reflected bundle increases, therefore, will reduce the energy on the part to be cut that is applied to sheet glass, thereby the cut end that makes sheet glass becomes bad, specifically, may produce burr at the front end of sheet glass.
In addition, reason also is, if it is very little to go up reflector, then the quantity from the laser beam of baffle reflection will reduce, thereby the energy that is applied to the laser beam on the sheet glass is reduced, and therefore is difficult to sheet glass is carried out cutting operation.
Have the glass cutting device of bending unit and use glass cutting device of the present invention to come the method for glass-cutting to be not limited to the foregoing description, under the situation that does not deviate from scope and spirit of the present invention, can do various modifications, increase or replacement.
Claims (11)
1. glass cutting device comprises:
The laser generation unit, its produce laser beam and when moving forwards or backwards with described laser beam irradiation to sheet glass;
The platform unit, it is arranged on the below of described laser generation unit and supports described sheet glass, and the place is formed with guide channel in the unitary mid-way of described platform;
Bending unit, it is arranged in the described guide channel and the adjoining position of described laser generation unit, and the upper end of described bending unit is higher than the unitary upper surface of described platform and contacts with described sheet glass; And
Make the moving member of described bending unit motion.
2. glass cutting device as claimed in claim 1, wherein said bending unit comprises:
The main body that seesaws along described guide channel;
Be arranged on the upper end of described main body and contact the roller or the spheroid of described sheet glass; And
The bending height that is used to regulate the height of described roller or spheroid is regulated parts.
3. glass cutting device as claimed in claim 1 or 2 wherein is formed with the aspirating hole that is communicated with vacuum pump in described platform unit.
4. glass cutting device as claimed in claim 1, wherein said moving member comprise with described bending unit in conjunction with and be fixed to the support unit of described laser generation unit,
Wherein, described support unit along horizontal expansion, centers on the unitary side of described platform from described laser generation unit, and combines with described bending unit.
5. glass cutting device as claimed in claim 1, wherein said moving member comprise with described bending unit in conjunction with and be fixed to the support unit of described laser generation unit,
Wherein, described support unit is installed in the rear portion of described laser generation unit and combines with described bending unit.
6. glass cutting device as claimed in claim 1, wherein said moving member comprises:
First delivery unit that described laser generation unit is seesawed;
Second transmission that described bending unit is seesawed is single; And
Control the control unit of the movement velocity of described first delivery unit and described second delivery unit.
7. method of using the laser beam glass-cutting may further comprise the steps:
Thereby laser beam irradiation is formed the irradiating step of crackle to the sheet glass in described sheet glass; And
Partly raise the cutting step that cuts described sheet glass by the sheet glass that will be formed with described crackle.
8. the method for use laser beam glass-cutting as claimed in claim 7, wherein, in described cutting step, when raising described sheet glass, described bending unit moves with described laser generation unit with the speed identical with the movement velocity of the laser generation unit that irradiates laser beam.
9. as the method for claim 7 or 8 described use laser beam glass-cuttings, wherein, in described irradiating step, in described cutting step, raise after the described sheet glass, be lower than the intensity raised before the described sheet glass with laser beam irradiation to described sheet glass.
10. as the method for claim 7 or 8 described use laser beam glass-cuttings, wherein, in described irradiating step, reduce intensity of laser beam gradually to tail end from the front end of described sheet glass.
11. method as claim 7 or 8 described use laser beam glass-cuttings, wherein, in described irradiating step, under described sheet glass tail end is circular situation, be higher than described sheet glass tail end by the intensity under the situation of straight cuts with laser beam irradiation to described sheet glass.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060026929 | 2006-03-24 | ||
| KR20060026929 | 2006-03-24 | ||
| KR1020060044142 | 2006-05-17 | ||
| KR1020060044143 | 2006-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101415648A true CN101415648A (en) | 2009-04-22 |
Family
ID=38103372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800541148A Pending CN101415648A (en) | 2006-03-24 | 2006-05-25 | Glass cutting apparatus with bending member and method for cutting glass using thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100693934B1 (en) |
| CN (1) | CN101415648A (en) |
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|---|---|---|---|---|
| JPH05301729A (en) * | 1992-04-28 | 1993-11-16 | Asahi Glass Co Ltd | Method for cutting wired glass and apparatus therefor |
| JPH06269968A (en) * | 1993-03-23 | 1994-09-27 | Hitachi Cable Ltd | Method and device for cutting glass |
| JPH1071483A (en) | 1996-08-29 | 1998-03-17 | Hitachi Constr Mach Co Ltd | Method for shearing brittle material |
| KR100371011B1 (en) | 2000-07-24 | 2003-02-06 | 로체 시스템즈(주) | Cutting method of non-metal material and cutting apparatus |
| KR20050022409A (en) * | 2003-08-30 | 2005-03-08 | 주식회사 에셀텍 | Brittleness Material Cutting Apparatus using Laser Beam and Its Cutting Method |
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2006
- 2006-05-17 KR KR1020060044143A patent/KR100693934B1/en not_active IP Right Cessation
- 2006-05-25 CN CNA2006800541148A patent/CN101415648A/en active Pending
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| KR100693934B1 (en) | 2007-03-12 |
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Open date: 20090422 |