CN101909818A - Glass plate face grinding device and method - Google Patents
Glass plate face grinding device and method Download PDFInfo
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- CN101909818A CN101909818A CN2008801223758A CN200880122375A CN101909818A CN 101909818 A CN101909818 A CN 101909818A CN 2008801223758 A CN2008801223758 A CN 2008801223758A CN 200880122375 A CN200880122375 A CN 200880122375A CN 101909818 A CN101909818 A CN 101909818A
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- Prior art keywords
- glass plate
- face
- grinding
- emery wheel
- shield
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
In the process of grinding an end face of a glass plate, a grinding fluid is effectively prevented from being scattered on the plane of the glass plate and the grinding fluid is efficiently recovered. A shielding plate (6) includes a surrounding portion (9) for surrounding a contact portion (4) from the center side of the plane of a glass substrate (2). One end of the surrounding portion (9) extends crossing an end face (2a) of the glass substrate (2) on the forward side in the rotational direction of a grinding wheel (3). A purge nozzle (7) is disposed on the opposite side of the shielding plate (6) from the grinding wheel (3). In the purge nozzle (7), nozzle openings for jetting purge water (13) for preventing the grinding fluid from entering the plane of the glass substrate (2) through a gap between the shielding plate (6) and the glass substrate (2) are arranged in a line.
Description
Technical field
The present invention relates to the face grinding device and the method thereof of glass plate, specifically, the emery wheel that relates to by making rotation contacts with the end face of glass plate, and when this contact site is supplied with grinding fluid, emery wheel and glass plate are relatively moved on the length direction of the end face of glass plate, come the technology of the end face of grinding glass plate.
Background technology
As everyone knows, when various image displays such as making LCD, plasma display, electroluminescent display, field-emitter display, after forming a plurality of display elements, adopting the gimmick of so-called many chamferings in the zone of cutting apart each display element with respect to large-scale glass substrate.Therefore, present situation is that the maximization of the glass substrate of manufacturings such as glass manufacturer constantly develops.
Described glass substrate is that it cut off the processing of end face etc. by grinding, obtains the glass substrate goods after the raw material severing of glass after being shaped was become the size of rectangle and regulation.
The cross grinding of this kind glass substrate is undertaken by described emery wheel is relatively moved along the direction of its end face with respect to glass substrate normally under the end face state of contact of emery wheel that makes rotation status and glass substrate.At this moment, for the contact site (grinding part) at the end face of emery wheel and glass substrate cools off or reduces friction etc., supply with grinding fluid to the grinding part usually.Yet, the grinding fluid of supplying with to the grinding part is owing to the direction of the supply of grinding fluid or the reasons such as rotation of emery wheel, and splash to the surface of glass substrate, owing to be included in the surface that cutting powder in this grinding fluid that splashes etc. is attached to glass substrate, can cause the surface property of glass substrate to worsen or the situation of miscellaneousization of matting of back.Therefore, in this kind face grinding device, disclose countermeasure as follows.
For example, in following patent documentation 1, disclose following method: remaining in the table back side of the glass substrate of vertical roughly, on the face of the inscape that is formed with plasma display device, dispose shield, this shield covers covering between emery wheel below the vertical of glass substrate and described inscape, under this state, emery wheel is contacted with the cut surface that needs grinding, in the time of the emery wheel feed fluid, make the glass substrate of maintenance move and make simultaneously emery wheel rotation, grinding cut surface to the length direction of cut surface.
Patent documentation 1: TOHKEMY 2005-317235 communique
Yet recently, various images such as LCD or plasma display show that the high-definition of display constantly develops, and follow in this, improve constantly with the requirement of each glass substrate for display headed by the PDP to high-definition.In order to satisfy described requirement, need further to improve the surface property of glass substrate, therefore, the grinding fluid of supplying with to the grinding part is not splashed to the surface of glass substrate become very important.
At this, above-mentioned patent documentation 1 disclosed shield is a writing board shape, with respect to parallel as the end face of the glass plate of grinding object and be configured in the top with predetermined distance.Follow the rotation of emery wheel and relatively moving of glass plate to the grinding fluid that the contact site of the end face of emery wheel and glass plate is supplied with, splash obliquely upward and arrive shield from this contact site.Then, the major part that arrives the grinding fluid of shield flows on the direction parallel with the end face of glass plate along shield, flows down owing to conducting oneself with dignity in the position that flow velocity descends, and falls downwards from glass plate.Therefore, the grinding fluid that splashes arrives shield, in the zone of on the direction parallel, flowing with the end face of glass plate along shield, grinding fluid is invaded the plane center side of glass plate easily by the gap between shield and the glass plate, even the gas supply nozzle 23 shown in Figure 3 of the document is set, also is difficult to suppress effectively the intrusion of grinding fluid to the plane of glass plate center side.Especially, glass plate is being added man-hour with horizontal attitude, this tendency is more remarkable.And the document is not considered the recovery to the grinding fluid of contact site (grinding part) supply especially.
Summary of the invention
In view of above situation, technical problem of the present invention is, in the cross grinding operation of glass plate, suppresses the situation that grinding fluid splashes to the plane of glass plate effectively, and, realize the effective recovery of grinding fluid.
The solution of described problem realizes by the grinding attachment of glass plate of the present invention.That is, the grinding attachment of this glass plate possesses: emery wheel, and it contacts with the end face of glass plate by rotation and while and end face is carried out grinding; The grinding fluid supply unit, its contact site to the end face of emery wheel and glass plate is supplied with grinding fluid; Shield, its plane that is used for the preventing glass plate makes it avoid touching the grinding fluid of supplying with to contact site, the face grinding device of described glass plate is characterised in that, shield has the encirclement portion that surrounds contact site from the plane center side of glass plate, and an end of this encirclement portion is intersecting by the end face of the position of the direction of rotation front side of emery wheel and glass plate than contact site and extending.
According to this kind structure, the grinding fluid of supplying with to contact site helps the processing at contact site, arrive to surround the encirclement portion of contact site afterwards, be directed into position than contact site by the position of the direction of rotation front side of emery wheel above the crossover location of the end face of encirclement portion and glass plate along encirclement portion.That is, the direction of rotation front side from the contact site to the emery wheel, grinding fluid flows to the direction of the plane center side of leaving glass plate along encirclement portion, is directed into the position above the end face of glass plate.Thus, can effectively stop the grinding fluid that splashes at contact site to flow and be attached to the situation of plane center side to the plane of glass plate center side.And, give mobile directionality by encirclement portion to grinding fluid, therefore can effectively reclaim grinding fluid.
In this case, surrounding the quality award from the ministry choosing has when overlooking with respect to the plane of glass plate along the curved shape of the outer peripheral face of emery wheel.
By encirclement portion is formed above-mentioned shape, the grinding fluid that the arrives encirclement portion direction of rotation along emery wheel can be guided smoothly, can improve above-mentioned effect.
In addition, encirclement portion also can constitute and is positioned at its two sides side except that constituting the one side side that is positioned at glass plate.
By disposing shield, can obtain the above-mentioned effect that produces by encirclement portion with respect to the two sides of glass plate so that encirclement portion is positioned at the mode of the two sides side of glass plate.Therefore, the glass plate that obtains by this grinding attachment can be provided widely the glass substrate of using as various image displays such as meticulous LCD of height or plasma displays.
In addition, constituting when making encirclement portion be positioned at the two sides side of glass plate, surrounding the quality award from the ministry choosing and has and be used to make the part that comprises end face of glass plate to insert logical slit.
By forming such shape, can constitute the encirclement portion of the two sides side that is positioned at glass plate by a shield, thus the simplification of implementation structure.
In addition, on the basis of said structure, also can be at the purification nozzle that sprays bodies for purifying fluids across the position configuration of an encirclement portion side opposite with emery wheel.In this case, the gap of bodies for purifying fluids between described encirclement portion and glass plate supplied with.
By forming described structure, the grinding fluid that will invade the plane center side of glass plate by the gap between encirclement portion and the glass plate is returned to the emery wheel side pressure from the bodies for purifying fluids that purifies the nozzle ejection.Thus, can prevent grinding fluid adhering to effectively to the plane of glass plate center side.In addition, here said " bodies for purifying fluids " is though comprise gases such as liquid, air such as water, but from applying the viewpoint that pushes back the required sufficient pressure of emery wheel side to the grinding fluid that will invade the plane center side of glass plate by the gap between encirclement portion and the glass plate, more preferably liquid such as water.And its pressure can suitably be set according to the quantity delivered of grinding fluid.
In this case, it is provided with angle preferably to purify nozzle setting, and makes bodies for purifying fluids arrive glass plate by the gap between encirclement portion and the glass plate.
As mentioned above, by determining to purify the angle that is provided with of nozzle, can utilize bodies for purifying fluids to push back grinding fluid, can more effectively prevent the situation of grinding fluid via the plane center side of this gap intrusion glass plate in position than the close emery wheel in the gap between shield and the glass plate.
In addition, the encirclement portion that purifies nozzle and shield is same, except that the one side side that is configured in glass plate, also can be configured in its two sides side.
By forming this structure, can obtain the identical effect of effect that produced with above-mentioned purification nozzle in the two sides of glass plate side.
In addition, in this case, also can the shield and purification nozzle assemblyization of encirclement portion will be had.
If carry out modularization like this,, also can under the state of keeping the shield position relation mutual, unload this unit with purifying nozzle even then under the situation of decomposing above-mentioned face grinding device in order to change emery wheel.Therefore, the position of only adjusting emery wheel and said units during assembling again after emery wheel is changed concerns and gets final product, and can shorten the required time of replacing operation of emery wheel.
Certainly, except that shield and purification nozzle, the grinding fluid supply unit also can carry out modularization.That is, also can and purify nozzle and carry out modularization shield and grinding fluid supply unit.
The face grinding device of the glass plate of said structure at least also possesses the housing of accommodating emery wheel and grinding fluid supply unit, this housing preferably has peristome on the end face of regulation, it is logical that this peristome is inserted the part of glass plate, and be used to make the end face of this glass plate to contact with emery wheel.
By forming this structure, except that the peristome of inserting logical side that constitutes glass plate, emery wheel is covered by housing.Therefore, combine, can prevent grinding fluid splashing more reliably to glass plate plane center side with above-mentioned shield or the purification above-mentioned effect that nozzle produced.And, by utilizing housing covering emery wheel and grinding fluid supply unit, can have by encirclement portion and leak the ground recovery by the grinding fluid that guides to direction away from glass plate.
In addition, the face grinding device of the glass plate of said structure is particularly suitable for situation that glass plate is processed with horizontal attitude.
On the other hand, the solution of described problem realizes by the end face grinding method of glass plate of the present invention.Promptly, also the while contacts with the end face of glass plate and end face is carried out grinding the method for grinding of this glass plate by making the emery wheel rotation, contact site to the end face of emery wheel and glass plate is supplied with grinding fluid, and disposing the grinding of carrying out end face under the state of shield, the plane that described shield is used for the preventing glass plate makes it avoid touching the grinding fluid of supplying with to contact site, the end face grinding method of described glass plate is characterised in that, shield has the encirclement portion that surrounds contact site from the plane center side of glass plate, and an end of encirclement portion is leaning on the position of the direction of rotation front side of emery wheel to intersect with end face than contact site and extending.
According to this method, the item that the item relevant with the grinding attachment of above-mentioned glass plate of the present invention is identical is suitable equally, therefore can access the identical action effect of action effect that is produced with this device.
In addition, in this case, preferably constitute,, the gap of bodies for purifying fluids between shield and glass plate supplied with at the purification nozzle that sprays bodies for purifying fluids across the position configuration of an encirclement portion side opposite with emery wheel.
Like this, in above-mentioned end face grinding method, by disposing the purification nozzle of above-mentioned supply mode, identical with the relevant item of purification nozzle in the above-mentioned face grinding device thus item is suitable equally, therefore can access the identical action effect of action effect that is produced with this device.
As mentioned above, according to the grinding attachment and the method thereof of glass plate of the present invention, in the cross grinding operation of glass plate, can suppress the situation that grinding fluid splashes to the plane of glass plate as much as possible.Therefore, as the good method of the surface property that makes glass plate, can realize the high-definition of the display element that various image displays such as LCD or plasma display are used.And, can realize the effective recovery of grinding fluid.
Description of drawings
Fig. 1 is the vertical view of grinding attachment of the glass substrate of one embodiment of the present invention.
Fig. 2 is the stereogram of shield that constitutes the grinding attachment of glass substrate.
Fig. 3 be constitute glass substrate grinding attachment the purification nozzle want portion's stereogram.
Fig. 4 be glass substrate shown in Figure 1 grinding attachment want the A-A of portion profile.
Fig. 5 be the explanation grinding attachment that purifies the sensing form of nozzle on vertical want portion's amplification profile.
Fig. 6 be the purification nozzle of explanation under the state of overlooking the sight glass substrate the sensing form grinding attachment want portion's amplification plan view.
Fig. 7 be the effect that is used to illustrate that shield produces grinding attachment want portion's vertical view.
Fig. 8 be used to illustrate the effect that nozzle produced of purification grinding attachment want portion's vertical view.
Fig. 9 is the splash stereogram of anti-stop element of grinding fluid that one has shield and grinding fluid supply nozzle and purifies nozzle.
Figure 10 be have grinding fluid splash anti-stop element face grinding device want portion's vertical view.
Symbol description:
1 grinding attachment
2 glass substrates
3 emery wheels
4 contact sites
5 grinding fluid supply nozzles
6 shields
7 purify nozzle
9 encirclement portions
10 slits
11 nozzle opening portions
13 purify waste water
θ
1Incidence angle
θ
2The injection direction of purifying waste water and the angle that tangential direction became of end face
The specific embodiment
Below, with reference to the description of drawings embodiments of the present invention.
At first, based on vertical view shown in Figure 1, the overall structure of grinding attachment of the glass plate of one embodiment of the present invention is described.In addition, in the present embodiment, the situation of the end face of the glass substrate of using with the grinding fluid crystal display is that example describes.
As shown in the drawing, the face grinding device 1 of glass substrate is the device that the end face 2a (section) that is used for glass substrate 2 that the raw material plate glass after be shaped is cut out implements grinding, is configured in a side (or both sides) of the glass substrate of carrying along the direction of regulation with horizontal attitude 2.At this, this face grinding device 1 possesses: accompanying rotation and emery wheel 3 that the end face 2a along one side of the throughput direction of glass substrate 2 is carried out grinding; Contact site (grinding part) 4 with emery wheel 3 and glass substrate 2 is a benchmark, the direction of rotation rear side that is configured in emery wheel 3 is (with regard to Fig. 1, than contact site 4 zone on the right side), and supply with the grinding fluid supply nozzle 5 of grinding fluid (is pure water at this) towards the periphery of contact site 4; Following shield 6; And purification nozzle 7.And, in the present embodiment, above-mentioned inscape (emery wheel 3, grinding fluid supply nozzle 5, shield 6, purification nozzle 7) is housed in the housing 8 of essentially rectangular shape, and by the peristome 8a on the end face that is arranged on this housing 8, can make the part of glass substrate 2 insert logical housing 8 inside, and, the end face 2a of a part of inserting logical glass substrate 2 is contacted with the outer peripheral face of emery wheel 3.
Grinding fluid supply nozzle 5 constitutes, and is benchmark with the contact site 4 of glass substrate 2 and emery wheel 3, supplies with grinding fluids from the direction of rotation rear side of emery wheel 3 to contact site 4.
As shown in Figure 2, shield 6 has and forms the bending part of for example roughly circular-arc (comprising circular-arc) along its length, and this circular-arc portion becomes the encirclement portion 9 that surrounds around glass substrate 2 sides of the emery wheel 3 that comprises contact site 4.Specifically, under the state on the plane of overlooking sight glass substrate 2, as shown in Figure 1, encirclement portion 9 forms roughly circular-arc along the outer peripheral face 3a of emery wheel 3, and, have the constant slit of width dimensions 10 along its length direction.And, insert logical this slit 10 in a part that makes glass substrate 2, and make under the end face 2a and emery wheel 3 state of contact that inserts logical part, as shown in Figure 4, encirclement portion 9 is configured in than the position of contact site 4 by the plane center side of glass substrate 2.And an end of encirclement portion 9 intersects at the end face 2a that with contact site 4 is direction of rotation front side (being the left field of contact site 4 among Fig. 1) and the glass substrate 2 of the emery wheel 3 of benchmark and extends, thereby shield 6 is fixed on the housing 8.The encirclement portion 9 of said structure is configured in the table back of the body both sides' of glass substrate 2 planar side.In addition, about the width dimensions of slit 10, as mentioned above, need to make glass substrate 2 to insert the size of logical degree at least, if possible, loosening (to the amplitude of thickness of slab direction) of the glass substrate 2 when preferably considering grinding sets this width dimensions.
In the present embodiment, as shown in Figure 3, purify nozzle 7 and constitute as compiling the nozzle unit that a plurality of nozzle opening portion 11 forms, and be configured in position across the opposite side of shield 6 and emery wheel 3.At this, it is same with shield 6 to purify nozzle 7, has to be used to make glass substrate 2 to insert logical slits, and in that this slit is sandwiched in therebetween on the relative a pair of inclined-plane 12,12, a plurality of nozzle opening portion 11 length directions along each inclined-plane 12,12 are configured to row respectively.In addition, described nozzle opening portion 11 is configured to point to without exception equidirectional.Therefore, a part that makes glass substrate 2 insert between the logical inclined-plane 12,12 that purifies nozzle 7 (slit) and make this end face 2a with emery wheel 3 state of contact under, (for example pure water) 13 of purifying waste water that sprays from described a plurality of nozzle opening portion 11 forms the water wall of curtain shape between the plane of these a plurality of nozzle opening portions 11 and glass substrate 2.In addition, it is same with the slit 10 of shield 6 to be arranged on the width dimensions that purifies the slit on the nozzle 7, can set according to the thickness of being plugged in the glass substrate 2 that leads to, and the aeration level of the glass substrate 2 when preferably considering grinding is set.
At this, be described in detail from the sensing form of 13 the vertical of purifying waste water that purifies nozzle 7 ejections, as shown in Figure 5, each nozzle opening portion 11 is oriented to, will be from 11 ejections of this nozzle opening portion purify waste water 13 to being in and the glass substrate 2 and the supply of the gap between the shield 6 of emery wheel 3 contact conditions.At this, preferred so that from 13 the incidence angle θ that purify waste water of nozzle opening portion 11 ejections with respect to the plane of glass substrate 2
1Become the following mode of above 45 degree of 10 degree, more preferably so that incidence angle θ
1Become the following mode of above 35 degree of 25 degree, setting purifies the setting angle of nozzle 7 or the angulation of nozzle opening portion 11.This is based on following reason: purify waste water 13 to the landing point on glass substrate 2 planes the closer to emery wheel 3 sides, the effect that pushes back of grinding fluid is high more, on the other hand, for fear of with the interference of glass substrate 2, and will be between the two the vertical gap of (glass substrate 2 with purify nozzle 7) exhaust and may get final product greatly.Opposite, from above-mentioned reason, preferred so that 13 modes that arrive the plane of glass substrate 2 by the gap between encirclement portion 9 and the glass substrate 2 of purifying waste water set purification nozzle 7 nozzle opening portion 11 angle is set.
In addition, under the state on the plane of overlooking sight glass substrate 2, be described in detail 13 the sensing form of purifying waste water, as shown in Figure 6, each nozzle opening portion 11 is oriented to, make from this nozzle opening portion 11 spray purify waste water 13 pass sideling be in emery wheel 3 contact conditions under the end face 2a of glass substrate 2 not grinding part and towards emery wheel 3.In other words, so that tangential direction V (the direction of rotation front side the contact site 4 of purify waste water 13 emission direction and the emery wheel 3 that spray from nozzle opening portion 11.With reference to Fig. 6) the angle θ that become
2Set the orientation angle of nozzle opening portion 11 less than the modes of 180 degree above 90 degree.
Below, the method for grinding of the glass substrate of the device that has used above-mentioned formation is described with reference to Fig. 7 and Fig. 8.In addition, Fig. 7 be used to illustrate this effect with the acting as focus of shield 6 want portion's vertical view, Fig. 8 be illustrate be used to illustrate this effect to purify the acting as focus of nozzle 7 want portion's vertical view.
The effect of shield 6 at first, is described.As shown in Figure 7, after near the grinding fluid (being represented by thick arrow in the figure) of the supply of contact site 4 arrives contact site 4, around it, splash during grinding.At this moment, because contact site 4 is surrounded by the encirclement portion 9 that is arranged on the shield 6, therefore the grinding fluid that splashes around contact site 4 is along encirclement portion 9, and is being directed into the position with the crossover location of the end face 2a of glass substrate 2 above encirclement portion 9 than contact site 4 by the position of the direction of rotation front side of emery wheel 3.That is, 3 the direction of rotation front side from contact site 4 to emery wheel, grinding fluid flows to the direction of the plane center side of leaving glass substrate 2 along encirclement portion 9, thereby is directed into the position above the end face 2a of glass substrate 2.Thus, can prevent effectively that the grinding fluid that splashes at contact site 4 from flowing and be attached to the situation of plane center side to the plane of glass substrate 2 center side.And, because besieged 9 of grinding fluid given mobile directionality, therefore can reclaim grinding fluid effectively.
In addition, shown in present embodiment,, then can arrive the direction of rotation smooth guide of the grinding fluid of encirclement portion 9, improve above-mentioned effect along emery wheel 3 if encirclement portion 9 is formed roughly circular-arc along the outer peripheral face 3a of emery wheel 3.And, by forming this shape, under the state of overlooking sight glass substrate 2, between encirclement portion 9 and emery wheel 3, be formed with the stream of the relative spacing constant of radial direction, carry out sending of grinding fluid thus smoothly.
Next, the effect that purifies nozzle 7 is described, as shown in Figure 8, observes, purify waste water 13 from the gap supply of oblique front side between shield 6 and glass substrate 2 from what purify that nozzle 7 (nozzle opening portion) sprays from contact site 4.Therefore, the grinding fluid that will invade the plane of glass substrate 2 by the gap between encirclement portion 9 and the glass substrate 2 is cleaned water 13 and pushes back emery wheel 3 sides.And, weaken to the impetus of this direction of splashing to the grinding fluid that the direction of rotation front side of emery wheel 3 splashes from contact site 4, and its direction of splashing (flow direction) changes, by to direction guiding away from glass substrate 2.In addition, function as follows: will be pressed into to the direction that promotes the guiding that encirclement portion 9 is carried out to the grinding fluid that the direction away from glass substrate 2 guides by encirclement portion 9.More than, can prevent that the gap that grinding fluid passes through between shield 6 and the glass substrate 2 from invading the situation of the plane center side of glass substrate 2, and can prevent the situation that grinding fluid spills to the outside of housing 8 by the gap between this shield 6 and the glass substrate 2.
In addition, as described in present embodiment, by the housing 8 that emery wheel 3 and grinding fluid supply nozzle 5 are accommodated is set, except that the peristome 8a that inserts logical side that constitutes glass substrate 2, emery wheel 3 is covered by housing 8 thus.Thus, by the bridging effect of above-mentioned shield 6 generations and catharsis (discharge effect) acting in conjunction that produces by above-mentioned purification nozzle 7, not only can prevent that grinding fluid from spilling to the plane of glass substrate 2 center side, and can prevent as much as possible that grinding fluid from spilling outside housing 8.And, can not have the ground of leakage and reclaim by encirclement portion 9 to the grinding fluid of becoming separated in flight away from the direction of glass substrate 2.Thus, can make the small glass particle or the remaining possibility that is attached to the plane of glass plate of emery wheel grain residue that are difficult to detect in the inspection operation behind grinding process for example approach zero as far as possible, thereby can realize the high-definition of aforementioned display device with panel.
More than, one embodiment of the present invention has been described, the face grinding device of certain glass plate of the present invention or its method can change arbitrarily within the scope of the invention.
For example in the above-described embodiment the shape of encirclement portion 9 is formed local buckling and become roughly circular-arc shape, but be not confined to this.As long as have the function as encirclement portion 9, its shape just can be for arbitrarily.Though for example not shown, encirclement portion 9 also can have circular-arc curved shape in addition, and, also can comprise smooth face locally.Perhaps, not only can form shape, also can form edge and the crooked shape of the direction (thickness direction of glass substrate 2) of its quadrature along above-mentioned length direction.
In addition, about being formed on the arrangement form that purifies the nozzle opening portion 11 on the nozzle 7, need not whole nozzle opening portions 11 is configured on the glass substrate 2, also can be the boundary with the end face 2a of glass substrate 2 be configured in emery wheel 3 sides with the part of arranged side by side a plurality of nozzle opening portion 11.And, in the above-described embodiment,, also can form the above multiple row of two row though a plurality of nozzle opening portion 11 is configured to row in the two sides of glass substrate 2 side.In addition,, be not limited to the circular hole shape, also can be for example slit-shaped about the shape of nozzle opening portion 11.
In addition, also can adopt the shield 6 that to form consubstantiality not respectively and to dispose in the above-described embodiment and purify nozzle 7 and carry out incorporate structure.In this case, though it is not shown, but a example as above-mentioned integrated (modularization), enumerate chamfering is carried out in the bight of emery wheel 3 sides that are arranged on the slit 10 on the shield 6, and along the structure that is set up in parallel for example shown in Figure 3 a plurality of nozzle opening portion 11 on the chamfered section of this slit length direction.According to described structure,, therefore can improve installation accuracy to housing 8 owing to the installing component of installing to housing 8 can be accumulated parts.Certainly, also can make shield 6 or purification nozzle 7 carry out integrated with housing 8 respectively.
At this, Fig. 9 illustrates another structure example of said modulesization, specifically, is to illustrate shield and grinding fluid supply nozzle and purify nozzle to carry out the splash stereogram of anti-stop element 20 of Componentized grinding fluid.And, Figure 10 be illustrate be incorporated with above-mentioned grinding fluid splash anti-stop element 20 face grinding device want portion's vertical view.This grinding fluid splashes and prevents that stop element 20 has the roughly case shape of shield shown in Figure 26 with forming as one, and the encirclement portion 9 ' that is arranged on its side becomes the form of being cut apart about in the of 10 ' by slit.And, with above-mentioned embodiment in the same manner, insert logical this slit 10 ' in a part that makes glass substrate 2, and make under the end face 2a and emery wheel 3 state of contact that inserts logical part, as shown in figure 10, one end of encirclement portion 9 ' intersects at the end face 2a that with contact site 4 is direction of rotation front side (being the left field of contact site 4) and the glass substrate 2 of the emery wheel 3 of benchmark in Figure 10 and extends, thereby the grinding fluid anti-stop element 20 that splashes is fixed on the housing 8 of shape for example shown in Figure 1.And, disposing a plurality of nozzle opening 11 ' (with reference to Figure 10) of portion across encirclement portion 9 ' and emery wheel 3 opposite sides, be configured in grinding fluid and splash in the anti-stop element 20 can spray 13 the mode of purifying waste water when the grinding towards the plane of glass substrate 2.In addition, in this illustrated example,, as an alternative, also can dispose grinding fluid supply nozzle 5 ' in the bottom or be configured in the upper and lower both sides respectively though dispose grinding fluid supply nozzle 5 ' integratedly on the splash top of anti-stop element 20 of grinding fluid.
By formation like this, when changing emery wheel 3, only just can change emery wheel 3 by the dismounting grinding fluid anti-stop element 20 that splashes.In addition, owing to need not to readjust grinding fluid supply nozzle 5 ', encirclement portion 9 ' and purify nozzle opening portion 11 ' the position relation each other of nozzle, therefore can shorten the required time of emery wheel 3 of changing.
In addition, in the above-described embodiment, though illustration at the upper and lower surface side of glass substrate 2 configuration shield 6 with purify the situation of nozzle 7 (nozzle opening portion 11), but also can be configured in the two sides side, and only the upper face side configuration shield 6 of for example glass substrate 2 and a side or the both sides of purification nozzle 7.And, at this moment, also can adopt with only in the mode of the one side side of glass substrate 2 configuration shield 6 (encirclement portion 9) and purification nozzle 7 with two inscapes, 9,7 Componentized structures.
In addition, though the face grinding device 1 of the glass substrate of above explanation is configured in the both sides of glass substrate 2, but when the end face to four limits of the glass substrate 2 that cuts out from raw material plate glass all carries out grinding, for example, also can adopt the position that in the conveying circuit of glass substrate 2, becomes the position of upstream side relatively and become the downstream along with the direction of this throughput direction quadrature structure of arranged opposite two you face grinding attachments 1 respectively.And, also can constitute face grinding device 1 can be moved along the direction with the throughput direction quadrature, thus dimension modifying that can be by identical face grinding device 1 reply glass substrate 2 etc.Perhaps, also can constitute specific inscapes such as only making emery wheel 3 can be along carrying orthogonal direction to relatively move in housing 8.
In addition, though not shown at this, conveying mechanism also can constitute by conveying mechanisms such as conveyer belts.And, at this moment, also can constitute by vacuum suction etc. glass substrate 2 is fixed on the assigned position of the key element (for example band) that constitutes conveying mechanism.Certainly, as long as can relatively move between glass substrate 2 and emery wheel 3, its structure can be any, for example, can constitute fixing glass substrate 2, and the face grinding device 1 of the glass plate that comprises emery wheel 3 can be moved along the orientation of glass substrate 2.
More than, though the situation with the grinding process that the present invention is applicable to the glass substrate that liquid crystal is used with display is that example is illustrated, but, except that the glass substrate that LCD is used, the grinding attachment of glass plate of the present invention and method thereof also are suitable for when the end face of the high glass plate of required precision carries out grinding over there, for example the glass substrate used of various image displays such as plasma display, electroluminescent display, field-emitter display or the glass substrate that uses as being used to form the base material of various Electricity Presentation Function elements or film.
Claims (12)
1. the face grinding device of a glass plate possesses: emery wheel, and it is by rotation and contact with the end face of glass plate simultaneously and this end face is carried out grinding; The grinding fluid supply unit, its contact site to the end face of this emery wheel and described glass plate is supplied with grinding fluid; Shield, its plane that is used to cover described glass plate make it avoid touching the grinding fluid of supplying with to described contact site,
The face grinding device of described glass plate is characterised in that,
Described shield has the encirclement portion that surrounds described contact site from the plane center side of described glass plate, and an end of this encirclement portion is intersecting by the end face of the position of the direction of rotation front side of described emery wheel and described glass plate than described contact site and extending.
2. the face grinding device of glass plate according to claim 1, wherein,
Described encirclement portion has when overlooking with respect to the plane of described glass plate along the curved shape of the outer peripheral face of described emery wheel.
3. the face grinding device of glass plate according to claim 1 and 2, wherein,
Described encirclement portion is positioned at the two sides side of described glass plate.
4. the face grinding device of glass plate according to claim 3, wherein,
Described encirclement portion has and is used to make the part that comprises described end face of described glass plate to insert logical slit.
5. according to the face grinding device of each described glass plate in the claim 1～4, wherein,
In position configuration the purification nozzle that sprays bodies for purifying fluids is arranged, with the gap supply of described bodies for purifying fluids between described shield and described glass plate across a described encirclement portion side opposite with described emery wheel.
6. the face grinding device of glass plate according to claim 5, wherein,
It is provided with angle described purification nozzle setting, and makes described bodies for purifying fluids arrive described glass plate by the gap between described encirclement portion and the described glass plate.
7. the face grinding device of glass plate according to claim 5, wherein,
Described purification nozzle is configured in the two sides side of described glass plate respectively.
8. according to the face grinding device of each described glass plate in the claim 1～7, wherein,
Also possess the housing of accommodating described emery wheel and described grinding fluid supply unit at least, this housing has peristome on the end face of regulation, and it is logical that this peristome is inserted the part of described glass plate, and the described end face of this glass plate can be contacted with described emery wheel.
9. according to the face grinding device of each described glass plate in the claim 1～8, wherein,
Described glass plate is processed with horizontal attitude.
10. the face grinding device of glass plate according to claim 5, wherein,
Have the shield of described encirclement portion and described purification nozzle by modularization.
11. the end face grinding method of a glass plate, also the while contacts with the end face of glass plate and this end face is carried out grinding by making the emery wheel rotation for it, contact site to the described end face of described emery wheel and described glass plate is supplied with grinding fluid, and disposing the grinding of carrying out described end face under the state of shield, the plane that described shield is used to cover described glass plate makes it avoid touching the described grinding fluid of supplying with to described contact site
The end face grinding method of described glass plate is characterised in that,
Described shield has the encirclement portion that surrounds described contact site from the plane center side of described glass plate, and an end of this encirclement portion is leaning on the position of the direction of rotation front side of described emery wheel to intersect with described end face than described contact site and extending.
12. the end face grinding method of glass plate according to claim 11, wherein,
In position configuration the purification nozzle that sprays bodies for purifying fluids is arranged, with the gap supply of described bodies for purifying fluids between described shield and described glass plate across a described encirclement portion side opposite with described emery wheel.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-332460 | 2007-12-25 | ||
| JP2007332460 | 2007-12-25 | ||
| JP2008160801A JP5177520B2 (en) | 2007-12-25 | 2008-06-19 | Glass plate edge grinding apparatus and method |
| JP2008-160801 | 2008-06-19 | ||
| PCT/JP2008/067808 WO2009081637A1 (en) | 2007-12-25 | 2008-10-01 | Glass plate face grinding device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101909818A true CN101909818A (en) | 2010-12-08 |
| CN101909818B CN101909818B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801223758A Active CN101909818B (en) | 2007-12-25 | 2008-10-01 | Glass plate face grinding device and method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5177520B2 (en) |
| KR (1) | KR101502903B1 (en) |
| CN (1) | CN101909818B (en) |
| TW (1) | TWI436857B (en) |
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| CN102775054A (en) * | 2011-05-09 | 2012-11-14 | 三星钻石工业股份有限公司 | Etching device |
| CN102873609A (en) * | 2012-10-09 | 2013-01-16 | 深圳市华星光电技术有限公司 | Dust preventing method of glass substrate edger |
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| CN108466174A (en) * | 2017-02-23 | 2018-08-31 | 韩商未来股份有限公司 | Glass plate edge grinding attachment |
| CN109843505A (en) * | 2016-10-14 | 2019-06-04 | 福锐尔股份公司 | For being ground the automaton and automated process of glass plate edge |
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| JP5437694B2 (en) * | 2009-05-07 | 2014-03-12 | 株式会社オーエム製作所 | End face processing equipment for plate material |
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- 2008-10-29 TW TW097141623A patent/TWI436857B/en active
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5177520B2 (en) | 2013-04-03 |
| KR101502903B1 (en) | 2015-03-18 |
| KR20100106293A (en) | 2010-10-01 |
| CN101909818B (en) | 2013-11-06 |
| TWI436857B (en) | 2014-05-11 |
| TW200930501A (en) | 2009-07-16 |
| JP2009172749A (en) | 2009-08-06 |
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