CN102019580B - Apparatus and method for locally polishing glass plate, and apparatus and method for producing glass product - Google Patents
Apparatus and method for locally polishing glass plate, and apparatus and method for producing glass product Download PDFInfo
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- CN102019580B CN102019580B CN201010287565.4A CN201010287565A CN102019580B CN 102019580 B CN102019580 B CN 102019580B CN 201010287565 A CN201010287565 A CN 201010287565A CN 102019580 B CN102019580 B CN 102019580B
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- glass plate
- grinding
- workbench
- local
- lapping device
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Classifications
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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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
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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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
Abstract
The invention provides an apparatus and a method for locally polishing glass plates, and an apparatus and a method for producing glass products, wherein grinding quality is stable and the production efficiency is increased.After the defects on the surface of a glass plate (G) are detected by a detection unit (4), the glass plate (G) is adsorbed and fixed to a work table (2).The positions of the defects (D) detected by the detection unit (4) and the surrounding place are polished by a polishing pad (34) with a smaller dimension compared with the glass plate (G), thereby removing the defects (D) without polishing the whole surface of the glass plate.
Description
Technical field
The present invention relates to the glass plate local lapping device, glass plate locally Ginding process, the manufacturing installation of glassware and the manufacture method of glassware that utilize the surface of grinding pad to the glass plate that absorption is fixed on workbench to grind.
Background technology
In the manufacture of the plate glass goods for flat-panel monitor etc., utilize forming unit that the melten glass by the melting of melten glass manufacturing installation is configured as glass tape, and by slow cooling unit, slow cooling is carried out to the glass tape after shaping, make glass plate thus.By cutting unit, the glass plate after slow cooling is cut into the glass plate of regulation shape, utilize lapping device to remove microlesion and the ripple on surface, make the glassware of tabular.The workbench possessing absorption fastening glass panels in the lapping device of grinding carrying out glass plate and the grinding pad ground the glass pane surface be fixed on workbench, by grinding to supplying lapping liquid between glass plate and grinding pad and making grinding pad rotate.
Fig. 8 represents the example of continous way lapping device in the past.Fig. 8 represents the part to the lapping device 100 that glass plate G grinds.This lapping device 100 is made up of the workbench 101 arranging the bench pad keeping glass plate G at upper surface and the grinder 102,102 etc. of multiple stage (only illustrating 1 in Fig. 8) that is configured at above workbench 101.
As shown in Figure 9, be provided with a pair guide pad and guide rail in the bottom of workbench 101, driving mechanism that rack-and-pinion is formed.Thus, workbench 101 is carried along the throughput direction shown in Fig. 8 upward arrow with fixing speed.
By the conveying of workbench 101, be held in glass plate G in the bench pad on workbench 101 successively by grinder 102,102 ... below.Further, this by utilize grinder 102,102 ... grinding pad 103,103 ... described glass plate G is ground with supplied lapping liquid.
Grinder 102 shown in Fig. 9 is arranged on the top of workbench 101, has the main shaft 104 orthogonal with workbench 101.This main shaft 104 is rotatably bearing on main body case 106 via bearing 105,105, and main body case 106 is fixed on and is configured on a pair pillar 107,107 of main body case both sides.
On the other hand, main shaft 104 is formed with inserting hole 104A, described inserting hole 104A is with the axle center O relative to main shaft 104
1eccentric axle center O
2centered by axle.Output shaft 108 is inserted through inserting hole 104A, and output shaft 108 is with its central shaft and described axle center O
2consistent mode is rotatably bearing on main shaft 104 via bearing 109,109.
The upper perimembranous of main shaft 104 is provided with gear 110.Gear 111 engages with this gear 110, and gear 111 is fixed on revolution motor 112 via multiple gears of deceleration.Thus, main shaft 104 is to specify that rotating speed rotates.
Like this, when main shaft 104 rotates, output shaft 108 is along with the axle center O of main shaft 104
1centered by circumference revolution.That is, grinding pad 103 on grinding head 113 is fixed on axle center O
1centered by carry out revolution motion.
The upper end of output shaft 108 links via Hooks coupling universal coupling 114 and rotation motor 115.Therefore, output shaft 108 utilizes the driving force of motor 115 with axle center O
2centered by rotate.That is, grinding pad 103 on grinding head 113 is fixed on axle center O
2centered by carry out spinning motion.(for example, referring to patent document 1)
Patent document 1: Japanese Unexamined Patent Publication 2001-293656 publication
But, in the lapping device 100 described in patent document 1, utilize the whole face on the grinding pad larger than the appearance and size of glass plate G 103 pairs of glass plate G surfaces to grind.At this moment only with a certain amount ofly grinding the whole face of glass plate of presetting.But, when producing in local than described a certain amount of dark damage and ripple, exist and cannot remove described damage and ripple by grinding and produce residual this problem (hereinafter referred to as " grinding is residual ").In addition, in grinding and in carrying, existence produces the situation of local damage.Utilize lapping device 100 again to carry out whole grinding to glass plate G when grinding is residual and damage produces, therefore efficiency is low.
Summary of the invention
The present invention makes in view of this situation, its object is to, a kind of glass plate local lapping device and Ginding process, the manufacturing installation of glassware and manufacture method are provided, only local grinding being carried out to defect and surrounding thereof by detecting the defects such as damage and ripple in advance, making grinding stay in grade thus and enhancing productivity.
In order to realize described object, the present invention is characterized in that, possesses: workbench, for adsorbing fastening glass panels; Grinding pad, for grinding the surface of the described glass plate be fixed on described workbench, and appearance and size is less than the appearance and size of described glass plate; Driver element, makes described grinding pad carry out revolution motion while carrying out spinning motion, and makes described grinding pad carry out oscillating motion on the direction, face of described glass plate; Lapping liquid feed unit, supplies lapping liquid between described glass plate and described grinding pad; Detecting unit, detects the defect of described glass pane surface; And control unit, utilize described driver element that described grinding pad is moved to the position of the described defect detected and to this defect and grind around.
According to the present invention, will be detected that by detecting unit the glass plate of blemish is absorbed and fixed on workbench.The glass plate fixing by absorption is ground by the grinding pad of the appearance and size less than the appearance and size of glass plate.At this moment, utilize driver element that grinding pad is moved to the position of the defect detected by detecting unit, and supply lapping liquid by lapping liquid feed unit and grind.When grinding pad grinds, while utilizing driver element to carry out spinning motion, carry out revolution motion, and carry out oscillating motion on the direction, face of glass plate.
Thus, for glass plate, only local grinding is carried out to defect and surrounding thereof, even if do not carry out whole grinding also can remove defect, effectively obtain the grinding quality of wishing.Thus, production efficiency can be made to improve.
In addition, according to the present invention, grinding pad carries out revolution motion while carrying out spinning motion, and carries out oscillating motion on the direction, face of glass plate, and abradant surface can be made thus level and smooth.Below, its reason is described.
In the present invention, grinding pad carries out revolution motion while carrying out spinning motion.Figure 10 (b) expression only utilizes the spinning motion of grinding pad to grind the result with the glass plate of local defect shown in Figure 10 (a), and Figure 10 (d) represents the result increased on spinning motion when revolution motion (Figure 10 (c): revolution-radius r1) grinds.Thus, compare the surface only utilizing the spinning motion of grinding pad to carry out the glass plate ground, increase the recruitment of the grinding scope of revolution-radius r1, as shown in Figure 10 (d), abradant surface becomes level and smooth.
In addition, in the present invention, grinding pad carries out oscillating motion on the direction, face of glass plate.Figure 10 (f) represents the result increased on spinning motion and revolution motion (revolution-radius r1) when oscillating motion (Figure 10 (e): oscillating stroke L) is ground.Thus, increase the recruitment of the grinding scope of the oscillating stroke L shown in Figure 10 (e), as shown in Figure 10 (f), abradant surface can be made more level and smooth.
As above, according to the present invention, even only to the defect of glass pane surface and the situation of carrying out local grinding around thereof, abradant surface is also level and smooth, can obtain the grinding quality of wishing.
In addition, the present invention preferably, possesses: multiple recess, adsorbs the described glass plate be arranged on the surface of described workbench; And supply unit, controlled by described control unit, described glass plate is carried under described defect is not configured in state fixing by absorption on described recess.
According to the present invention, the workbench of absorption fastening glass panels is formed with multiple recesses of absorption.Glass plate is transported on workbench by supply unit, is adsorbed fixing, utilize grinding pad to grind by recess.At this moment, control supply unit by control unit, in the mode that the defect detected by detecting unit is not configured on recess, glass plate is transported on workbench.Thus, the part of position that when grinding defect, the defect of glass plate exists can not be deformed into concavity at recess, so it is uneven to produce grinding, can maintain high grinding quality.
In addition, in the present invention, can workbench described in horizontal arrangement, and described grinding pad is configured above this workbench.
According to the present invention, make abradant surface (surface) upward and the glass plate be absorbed and fixed on workbench is ground from top by the grinding pad of the top being configured at workbench, thus, maintain stable grinding quality.
In addition, in the present invention, can workbench described in horizontal arrangement, and configure described grinding pad in the below of this workbench.In addition, the present invention is preferably provided with the liquid dish for accepting described lapping liquid around described grinding pad.
According to the present invention, the glass plate be absorbed and fixed at downward by abradant surface (surface) on the workbench reversed up and down is ground from below by the grinding pad be configured at below workbench.The lapping liquid used when grinding can not be piled up in the diffusion of whole of glass pane surface, but flows down, and is reclaimed by the liquid dish around grinding pad.Thus, the partly abrading glass plate partly not needing to grind of glass plate can not be polluted, high grinding quality can be maintained.
In addition, the present invention preferably possesses glass plate whole the lapping device ground the whole face of described glass plate.
According to the present invention, before the lapping device carrying out partly grinding, possesses the lapping device that the whole face of glass plate is ground in operation or rear operation.The lapping device carrying out grinding due to local is in operation before the grinding lapping device of whole, so the defect detected by detecting unit and carry out after local grinds around in advance, then grinds the whole face of glass plate.In addition, because the lapping device carrying out partly grinding is in the rear operation of lapping device of whole of grinding, even if so to have grinding after grinding whole residual, also detect defect by detecting unit, to defect and carry out local around and grind.Thus, do not produce grinding and remain, or do not need again to grind whole, grinding stay in grade can be made, enhance productivity.
In addition, in the present invention, can described workbench inclined relative to horizontal direction, be oppositely disposed described grinding pad with this workbench.Due to inclined workbench and grinding pad, so the installation space space saving of glass plate local lapping device can be made.When setting horizontal line as 0 °, the tilt angle theta of workbench is 0 ° of < θ≤90 °.
As described above, according to glass plate local of the present invention lapping device, glass plate local Ginding process, the manufacturing installation of glassware and the manufacture method of glassware, by detecting the defects such as damage and ripple in advance and carrying out local grinding to defect and surrounding thereof, grinding stay in grade can be made, enhance productivity.
Accompanying drawing explanation
Fig. 1 is the stereogram of the structure representing local of the present invention lapping device;
Fig. 2 is the side view of the structure representing local lapping device;
Fig. 3 is the side view of the grinding head representing local lapping device;
Fig. 4 is the stereogram of the structure of the local lapping device representing other embodiment;
Fig. 5 is the side view of the grinding head of the local lapping device representing other embodiment;
Fig. 6 is the perspective view of the state representing absorption glass plate;
Fig. 7 is the flow chart of the manufacturing process representing glassware;
Fig. 8 is the stereogram of the structure of the continous way lapping device represented in the past;
Fig. 9 is the side view of the grinding head of the continous way lapping device represented in the past;
Figure 10 is the different sectional view of the abradant surface represented based on revolution motion, oscillating motion;
Figure 11 is the important part side view of the inclined local lapping device of workbench and grinding pad;
Figure 12 is the side view of the other embodiment representing grinding head;
Figure 13 represents that use is deformed into convex curved grinding pad downwards and the key diagram of the grinding state of the glass plate obtained.
Detailed description of the invention
Below, with reference to the accompanying drawings, the preferred embodiment of glass plate local of the present invention lapping device, glass plate local Ginding process, the manufacturing installation of glassware and the manufacture method of glassware is described.
Local lapping device 1 possesses: the workbench 2 keeping glass plate G; And be configured at the grinder 3,3 of multiple stage (only illustrating 1 in Fig. 1) of top of workbench 2.In addition, as shown in Fig. 2 (a) or Fig. 2 (b), in local lapping device 1, possess the detecting unit 4 based on the optical profile type of laser etc. and supply unit 5, described supply unit 5 is made up of each shifting axle of X, Y, Z and absorption arm etc., and each portion is controlled by control unit 6.Before local lapping device 1, the position of operation or rear operation is configured with whole lapping device 7.
As whole lapping device 7, whole the lapping device utilizing the grinding pad of the appearance and size larger than the appearance and size of glass plate to carry out the grinding of whole of glass plate can be configured.In addition, lapping device as described below can be configured: the throughput direction zigzag along glass plate G configures multiple grinding pads that (zigzag alignment) has the profile less than glass plate G, and utilize the whole face of multiple grinding pad to glass plate G to grind.
As shown in Figure 3, be provided with a pair guide pad 8,8 in the bottom of workbench 2, this guide pad 8,8 fastens with the pair of guide rails 10,10 be arranged on base station 9 sliding freely.In addition, be fixed with tooth bar 11 at the lower central portion of workbench 2 along the length direction of workbench 2, tooth bar 11 engages with pinion 12.Pinion 12 is rotatably supported on base station 9, and links with the output shaft of not shown motor, utilizes the driving force of motor to rotate.
The top of workbench 2 is provided with absorption layer 13, and the back side of absorption layer 13 is connected with not shown attraction unit.Absorption layer 13 is formed by resin etc., and front is provided with the recess such as groove and hole for adsorbing glass plate G.Thus, glass plate G is absorbed and fixed on workbench 2, and tooth bar 11 is fed by pinion 12, with fixing speed to the arrow A direction conveying glass plate G shown in Fig. 1.
Grinder 3 is arranged on the top of workbench 2, has the main shaft (be equivalent to outer shaft) 14 orthogonal with workbench 2.Main shaft 14 is rotatably supported in casing 16 via bearing 15,15.Casing 16 is fixed on rotation-revolution portion main body 17.
Main shaft 14 is formed with axle center O
2centered by the inserting hole 14A of axle, described axle center O
2relative to the axle center O of main shaft 14
1eccentric.Inserted output shaft (being equivalent to interior axle) 18 at inserting hole 14A, output shaft 18 is with the central shaft of output shaft 18 and axle center O
2consistent mode is rotatably supported on main shaft 14 via bearing 19,19.
The upper perimembranous of main shaft 14 is provided with gear 20.Gear 21 engages with gear 20, and gear 23 links via axle 22 and gear 21.In addition, output gear 25 engages with gear 23 via idle pulley 24, and output gear 25 is fixed on the output shaft 27 of revolution motor 26.Thus, the driving force of revolution motor 26 reduces via gear 25 → 24 → 23 → 21 → 20 and passes to main shaft 14, so main shaft 14 is to specify that rotating speed rotates.Like this, when main shaft 14 rotates, output shaft 18 is along with the axle center O of main shaft 14
1centered by circumference revolve round the sun.
Be formed as circular grinding head 28 to link via the bottom of swivel coupling 29 with output shaft 18.Grinding head 28 is made up of support plate 30, air spring 31, laminated latex 32, abrasive sheet fixed part 33 etc., and on abrasive sheet fixed part 33, absorption is fixed with the abrasive sheet 35 having installed grinding pad 34.
Grinding pad 34 is formed by materials such as foamed polyurethane pads, is formed as the appearance and size less than the appearance and size of the glass plate G of grinding object.Grinding pad 34 is formed as round-shaped, and its diameter is preferably φ 35 ~ φ 600mm, is more preferably φ 25 ~ φ 350mm.When the diameter of grinding pad 34 is more than φ 600mm, larger-scale unit and installation cost, parts take increase.
Abrasive sheet fixed part 33 utilizes laminated latex 32 can install with driving in support plate 30 horizontal direction.Be provided with in the inside of abrasive sheet fixed part 33 as lapping liquid feed unit lapping liquid path 36 and fix the air flue 37 of abrasive sheet 35 for vacuum suction.Lapping liquid path 36 is connected with not shown grinding liquid bath via swivel coupling 29, comprises the lapping liquid of the free abrasive such as cerium oxide or zirconia when grinding to supply between grinding pad 34 and glass plate G.Air flue 37 is connected with not shown vacuum occurring source via swivel coupling 29, vacuum suction abrasive sheet 35.
Air spring 31 is arranged on the central part of the grinding head 28 being formed as circular, is connected with not shown air pump via swivel coupling 29.Air spring 31 is expanded by the compressed air from air pump, pressing abrasive sheet fixed part 33.Due to pressing abrasive sheet fixed part 33, so give grinding pressure to grinding pad 34.Give the grinding pressure of grinding pad 34 by controlling the air pressure being supplied to air spring 31 to regulate.
Above-mentioned grinding pressure is preferably 0.1 ~ 30KPa, is more preferably 5 ~ 20KPa, particularly preferably 10 ~ 15KPa.
When above-mentioned grinding pressure is less than 0.1KPa, grinding rate reduces.During more than 30KPa, according to pad and grinding condition, pad is deterioration easily.
The upper end being connected with the output shaft 18 of grinding head 28 in bottom via Hooks coupling universal coupling 38 be fixed on the output shaft 40 of the rotation in rotation-revolution portion main body 17 with motor 39 and be connected.Under the driving force effect of rotation with motor 39, output shaft 18 is with axle center O
2centered by rotate, grinding head 28 is with axle center O
2centered by carry out spinning motion.Output shaft 18 is along with the axle center O of main shaft 14
1centered by circumference revolve round the sun, so grinding head 28 carries out spinning motion while carrying out revolution motion.
Be provided with and make grinding head 28 carry out spinning motion, the main shaft 14 of revolution motion and the rotation-revolution portion main body 17 of output shaft 18 to be arranged on and to be arranged on the X workbench 42 of X shifting axle 41.X shifting axle 41 is the direct acting shifting axles be made up of ball-screw and drive motor etc., and rotation-revolution portion main body 17 carries out oscillating motion in the arrow X-direction shown in Fig. 3.
Revolution-radius is preferably 5 ~ 300mm, is more preferably 30 ~ 60mm.This is because if more than 300mm, then the size of the grinding pad needed is at least 600mm, larger-scale unit, if less than 5mm, then the relative velocity of grinding pad and glass reduces, and grinding efficiency reduces.
The oscillating stroke in XY direction is preferably 5 ~ 50mm, is more preferably 20 ~ 40mm, is particularly preferably 30mm.This is because, if more than 50mm, then need larger grinding pad.This is because if less than 5mm, then the glass pane surface after grinding becomes unsmooth.
In the present invention, to defect and periphery thereof carry out local grind time, preferred abrasive areas is the region of radius 50 ~ 315mm centered by defect, is more preferably the region of 150 ~ 250mm, is particularly preferably the region of 200 ~ 250mm.This is because when grinding the region less than 50mm, the change of the depth direction of abrasive areas increases, and the smoothness of glass plate becomes problem.
As shown in Figure 1, the grinder 3 formed as mentioned above is fixed on and is arranged on a pair pillar 43,43 of both sides, and passes through the not shown piston lifting moving of ground jack 44,44.Thus, the grinder 3 possessing grinding head 28 is retreated mobile relative to workbench 2 above-below direction.The bottom of ground jack 44,44 is provided with Y shifting axle 54, by making ground jack 44,44 oscillating motion in the Y-direction shown in Fig. 1, grinder 3 oscillating motion in the Y direction.
Thus, carry out spinning motion, revolution motion with the grinding head 28 that the size less than glass plate G is formed, carry out oscillating motion to X-direction and Y-direction simultaneously, therefore local abrading glass plate G, and local means of abrasion periphery is formed smoothly.
In addition, the oscillating motion to Y-direction also can utilize tooth bar 11 and pinion 12 that workbench 2 is swung, thus glass plate G is swung.
Below, the structure of the local lapping device of the other embodiment of the present application is described.
Local lapping device 45 shown in Fig. 4 possesses multiple stage (only illustrating 1 in Fig. 4) grinder 47,47 of the below keeping the workbench 46 of glass plate G and be configured at workbench 46.
Local lapping device 45 is the same with local lapping device 1, possess detecting unit 4 and supply unit 5, each portion is controlled by control unit 6, before local lapping device 45, the position of operation or rear operation is configured with whole lapping device 7, and described whole lapping device 7 utilizes the whole face of the grinding pad of the appearance and size larger than the appearance and size of glass plate to glass plate to grind.
As shown in Figure 5, be provided with downward a pair guide pad 48,48 on the top of workbench 46, this guide pad 48,48 fastens with the pair of guide rails 50,50 be arranged on base station 49 sliding freely.In addition, the length direction in the center upper portion portion of workbench 46 along workbench 46 is fixed with tooth bar 51, and tooth bar 51 engages with pinion 52.Pinion 52 is rotatably bearing on base station 49, and is connected with the output shaft of not shown motor, utilizes the driving force of motor to rotate.
The bottom of workbench 46 is provided with absorption layer 53, and the back side of absorption layer 53 is connected with not shown attraction unit.Absorption layer 53 is formed by resin etc., is provided with the recess such as groove and hole for adsorbing glass plate G in front.Thus, the abradant surface of glass plate G is absorbed and fixed at downward on workbench 46, and tooth bar 51 is fed by pinion 52, with fixing speed to the arrow B direction conveying shown in Fig. 4.
Grinder 47 is arranged on the below of workbench 46, and have the internal structure equal with the grinder 3 shown in Fig. 3, grinding head 28 is installed upward, and grinding head 28 carries out rotation-revolution motion, swings to X-direction simultaneously.
In addition, grinder 47 is fixed on and is arranged on a pair pillar 43,43 of both sides, and pillar 43,43 utilizes the not shown piston lifting moving of ground jack 55,55.Ground jack 55,55 is separately fixed on Y shifting axle 54,54, utilizes Y shifting axle 54,54 oscillating motion in the Y direction.
Thus, possess grinder 47 oscillating motion in the Y direction of grinding head 28, to retreat in the vertical direction movement relative to workbench 46 simultaneously.In addition, the oscillating motion to Y-direction also can make workbench 46 swing by utilizing tooth bar 51 and gear 52, thus glass plate G is swung.
In addition, around the grinding pad 34 of local lapping device 45, be provided with the liquid dish 56 of the lapping liquid after accepting grinding.Grind the lapping liquid used can not pile up in the diffusion of glass plate G surface integral but flow down, reclaimed by liquid dish 56 and recycle.
That is, in local lapping device 45, the lapping liquid be attached on glass plate G is also dropped in liquid dish 56 under the Gravitative Loads of lapping liquid.Therefore, compared with the local lapping device 1 shown in the Fig. 1 do not dripped from glass plate G with lapping liquid, the yield of the lapping liquid of local lapping device 45 increases.Therefore, the lapping liquid reclaimed can re-use, so compared with local lapping device 1, local lapping device 45 can reduce the use amount of lapping liquid.
Thus, local lapping device 45 is the same with the local lapping device 1 shown in Fig. 1, spinning motion, revolution motion is carried out with the grinding head 28 that the size less than glass plate G is formed, simultaneously to X-direction oscillating motion, and oscillating motion in the Y direction, so local abrading glass plate G, and local means of abrasion periphery is formed smoothly.In addition, upward, glass plate G downward for grinding head 28.Therefore, the lapping liquid on glass plate G can not be piled up in the diffusion of glass plate G surface integral, but flows down from the surrounding of grinding pad 34, can not pollute the partly local abrading glass plate G not needing to grind of glass plate G.
In addition, near grinder 3, grinder 47, possessing not shown refine plate and high pressure trimming device, often specifying grinding number of times or per stipulated time, carrying out the refine of grinding pad 34, finishing operation.
Below, glass plate local Ginding process is described.
First, the glass plate G manufactured via each device is transported to whole lapping device 7 by supply unit 5 as Suo Shi Fig. 2 (a), and is ground whole face by the grinding pad with the appearance and size larger than the appearance and size of glass plate G.
In addition, the situation of whole of continous way lapping device grinding is configured the throughput direction zigzag of multiple grinding pads with the profile less than glass plate G along glass plate G, utilizes the whole face of multiple grinding pad to glass plate G to grind.
Then, cleaned by not shown decontaminating apparatus by the glass plate G of whole grinding, to be carried by supply unit and by the below of detecting unit 4.At this moment, the checkout gear of optical profile type and detecting unit 4 utilize laser etc. to detect the position, size etc. of the defects such as the damage on the surface of glass plate G and ripple, store the data relevant to detected damage and ripple by control unit 6.
Fixing by absorption on the absorption layer 13 that the glass plate G confirming defect by detecting unit 4 is transported to local lapping device 1 or on the absorption layer 53 of local lapping device 45.
At this moment, control unit 6 controls supply unit 5 based on the position data of defect D and carries glass plate G, not to be configured in as shown in Fig. 6 (a) (b) on absorption layer 13 or absorption layer 53 to make the defect D of glass plate G the recess 57 of absorption that formed and fixing by absorption.Thus, even if make glass plate G slight curvature because of the attraction of recess 57, recess 57 does not also configure defect D, therefore reliably contact with grinding pad 34 and grind, owing to avoiding the residual generation of grinding, therefore can carry out high-precision grinding.
Then, adsorbing in the local lapping device 1 or local lapping device 45 being fixed with glass plate G, multiple stage grinder 3 or grinder 47 can be utilized to carry out continuous print grinding.First, based on the position data of defect D, in XY direction, enterprising line position is involutory, makes defect D and utilizes X shifting axle 41, operate portions 2 or workbench 46 or Y shifting axle 54,54 to carry out spinning motion, revolution motion to carry out the center of the oscillating stroke of the grinding head 28 of oscillating motion and consistent in the center of revolution orbit simultaneously.On XY direction behind involutory position, ground jack 44 or ground jack 55 are stretched, thus grinder 3 or grinder 47 are moved up and down, adjustment grinding head 28 is relative to the position of glass plate G.
In the grinding head 28 that have adjusted position, adjustment passes to the air capacity of air spring 31 to become the grinding pressure of regulation, utilizes lapping liquid path 36 to supply lapping liquid between grinding pad 34 and glass plate G.
Utilize the driving force of main shaft 14 and output shaft 18 to carry out rotation-revolution motion with the grinding head 28 that the grinding pressure of regulation presses grinding pad 34 to glass plate G, utilize X shifting axle 41 to carry out oscillating motion to X-direction.In addition, glass plate G utilizes workbench 2 or workbench 46 to carry out oscillating motion to Y-direction, grinding head 28 utilizes Y shifting axle 54,54 to carry out oscillating motion to Y-direction, and glass plate G grinds according to the complex track of the rotation track of grinding pad 34, the track that revolves round the sun, XY track thus.
The rotation rotating speed of grinding head 28 is preferably set to 1 ~ 10rpm by grinding condition, and revolving round the sun, rotating speed is set to 100 ~ 400rpm, revolution-radius is set to 30 ~ 60mm, the oscillating stroke in XY direction is set to 20 ~ 40mm, give the grinding pressure of grinding pad 34 is set to 10 ~ 15KPa.
Glass plate G, because grinding according to complex track, therefore eliminates the grinding inequality that the track heterogeneity under single movement locus causes.In addition, grinding pad 34 is formed as the appearance and size less than the appearance and size of glass plate G, so local abrading glass plate G, utilizes the oscillating motion in XY direction that local means of abrasion periphery is formed smoothly simultaneously.
Glass plate G after the grinding of local utilizes not shown decontaminating apparatus clean and make glassware.
Like this, utilize detecting unit 4 detect the defect of damage and ripple etc. in advance and carry out local grinding to detected defect and surrounding thereof, thus defect can not be removed with grinding again to whole face, grinding stay in grade, production efficiency can be made to improve.
In addition, as shown in Fig. 2 (b), before whole lapping device 7 in operation, possess local lapping device 1 or local lapping device 45, utilize detecting unit 4 to detect damage dark especially etc. in advance and easily generate the residual position of grinding in whole grinding, grind corresponding defect and around by local in advance, then the grinding that can not produce in whole grinding remains, grinding stay in grade can be made, raise the efficiency.
Below, the manufacturing installation of glassware and the manufacture method of glassware are described.Melten glass manufacturing installation, forming unit, slow cooling unit, cutting unit and aforesaid local lapping device 1 or local lapping device 45 is possessed in glassware manufacturing installation.
The device employing float glass making process can be utilized as melten glass manufacturing installation, forming unit, slow cooling unit, described float glass making process makes the melten glass of in melting furnace melting flow into the molten metal bath being full of molten tin, melten glass is cast and makes average thickness on soldering tin, and it is planarized, become glass tape, carry also slow cooling to room temperature by the annealing kiln roller (lehr roller) in leer.
As the method utilizing such glassware manufacturing installation to manufacture glassware, first, manufacture melten glass (the step S1 shown in Fig. 7) by the various raw material of melting furnace melting.
The melten glass of melting flows into molten metal bath.Be full of molten tin in molten metal bath, the melten glass flowing into molten metal bath is become the thickness of regulation on soldering tin by drawing, and planarized, is configured as glass tape (step S2).
Runner glass tape being sent into leer from molten metal bath pull-out is provided with at the back segment of molten metal bath.By driving this runner, the melten glass of drawing in the tin liquor of molten metal bath being pulled to the direction of leer, becoming the band shape of one fixed width in the downstream of molten metal bath and advancing simultaneously.Be formed as banded glass (glass tape) and sent into leer by from molten metal bath, carry also slow cooling to room temperature by the annealing kiln roller in leer.Thus, the residual stress homogenization (step S3) will produced when being formed as band shape in molten metal bath.
Shearing device is utilized to be cut to the glass plate (step S4) of given size by the glass tape after leer.
Glass plate after cut-out is transported to local lapping device 1 or local lapping device 45 and grinding by supply unit 5, makes the glassware (step S5) meeting rated condition thus.
As described above, according to the manufacture method of glass plate local of the present invention lapping device, glass plate local Ginding process, glassware manufacturing installation and glassware, detect the defects such as damage and ripple in advance, and local grinding is carried out to the defect detected and surrounding thereof, thus do not carry out whole grinding and also can remove defect, obtain stable height grinding quality at short notice.Thus, production efficiency can be made to improve.
Figure 11 is the important part side view of the structure of the local lapping device 60 representing other embodiment.When the structure of this local lapping device 60 is described, be described marking identical label with the same or similar parts of local lapping device 1 shown in Fig. 3.
Local lapping device 60 according to Figure 11, workbench 2 relative level direction is inclined, and grinding pad 34 and the absorption layer 13 be held on this workbench 2 are oppositely disposed.
As this local lapping device 60, if make workbench 2 and grinding pad 34 inclined, then can make the installation space space saving of the local lapping device 60 of viewed in plan.In addition, when horizontal line being set to 0 °, the tilt angle theta of workbench 2 is 0 ° of < θ≤90 °.
Figure 12 represents the side view of the grinding head 70 of the other embodiment showing grinding head.This grinding head 70 is made up of support plate 72, center air spring 74, periphery air spring 76 and abrasive sheet fixed part 78 etc.On abrasive sheet fixed part 78, absorption is fixed with the abrasive sheet 82 having installed grinding head 80.
In addition, in Figure 12 although not shown, but center air spring 74 and periphery air spring 76 be connected with air pump separately.When supplying compressed air from air pump to center air spring 74, because center air spring 74 expands, so give grinding pressure via abrasive sheet 82 to the central portion of grinding head 80 from abrasive sheet fixed part 78.In addition, when supplying compressed air from air pump to periphery air spring 76, because periphery air spring 76 expands, so give grinding pressure via abrasive sheet 82 to the peripheral part of grinding pad 80 from abrasive sheet fixed part 78.
When being set to larger than the swell increment of periphery air spring 76 by the swell increment of center air spring 74, the areal deformation of grinding pad 80 is curved convex downwards.Utilize Figure 13 that the grinding state of the glass plate G that the grinding pad 80 of this state of use obtains is described.First, Figure 13 (b) represents the result only utilizing the spinning motion of the grinding pad of the abradant surface had on curved surface to grind to the glass plate with local defect such as shown in Figure 13 (a), and Figure 13 (d) expression increases revolution motion (Figure 13 (c): revolution-radius r1) and carries out the result of the situation of grinding on spinning motion.In this situation, with only carry out the surface of the glass plate ground under the spinning motion of grinding pad compared with, increase the recruitment of the grinding scope of revolution-radius r1, abradant surface becomes level and smooth as shown in Figure 13 (d).In addition, Figure 13 (f) represents and makes the areal deformation of grinding pad 80 become convex curved downwards, spinning motion and revolution motion (revolution-radius r1) increase oscillating motion (Figure 13 (e): oscillating stroke L) and carries out the result of the situation of grinding.Thus, increase the recruitment of the grinding scope of the oscillating stroke L shown in Figure 13 (e), as shown in Figure 13 (f), abradant surface can be made more level and smooth.
In addition, the areal deformation of grinding pad 80 is made to be that foregoing convex curved method is not limited to said method downwards.
Such as, when refine grinding pad 80, when making periphery air spring 76 more expand than center air spring 74, for grinding pad 80, carry out refine as its surface configuration to become convex curved form.Further, after refine, when the grinding pressure of center air spring 74 and periphery air spring 76 is set as roughly equal, the surface configuration of grinding pad 80 because the peripheral part of grinding pad 80 is than central portion refine more, so become convex curved downwards.Use such grinding pad 80, when only grinding under spinning motion effect, as shown in Figure 13 (b), the abradant surface of glass plate G becomes level and smooth.In addition, grinding head 70 spinning motion adds revolution motion and oscillating motion, thus can be more level and smooth than the abradant surface shown in Figure 13 (f).
In addition, when refine grinding pad 80, must than high (such as 30 times) during grinding by the rotation speed setting of grinding pad 80, under the state that the difference of the peripheral speed of the central portion and peripheral part that make grinding pad 80 increases, carry out refine, grinding pad 80 becomes convex curved downwards.
As mentioned above, by making the areal deformation of grinding pad 80 be convex curved downwards, glass plate is ground, thus the abradant surface more level and smooth than the abradant surface shown in Figure 10 can be become.
The areal deformation of these grinding pads 80 is made to be that convex curved method both can combine separately or also downwards.Combination is not particularly limited.
On the other hand, grinding head 70 is waved via ball bearing and is connected to output shaft freely, the simultaneous grinding glass plate G waved by relatively above-mentioned output shaft, the abradant surface of glass plate G also can be made level and smooth.
Claims (9)
1. a glass plate local lapping device, possesses:
Workbench, for adsorbing fastening glass panels;
Grinding pad, for grinding the surface of the described glass plate be fixed on described workbench, and appearance and size is less than the appearance and size of described glass plate;
Driver element, makes described grinding pad carry out revolution motion while carrying out spinning motion, and makes described grinding pad carry out oscillating motion on the direction, face of described glass plate;
Lapping liquid feed unit, supplies lapping liquid between described glass plate and described grinding pad;
Detecting unit, detects the defect of described glass pane surface; And
Control unit, utilizes described driver element that described grinding pad is moved to the position of the described defect detected and to this defect and grind around;
The feature of described glass plate local lapping device is also possess:
Multiple recess, adsorbs the described glass plate be arranged on the surface of described workbench; And
Supply unit, is controlled by described control unit, and described glass plate is carried under described defect is not configured in state fixing by absorption on described recess.
2. glass plate local as claimed in claim 1 lapping device, wherein,
Described workbench horizontal arrangement, configures described grinding pad above this workbench.
3. glass plate local as claimed in claim 1 lapping device, wherein,
Described workbench horizontal arrangement, configures described grinding pad in the below of this workbench.
4. glass plate local as claimed in claim 3 lapping device, wherein,
The liquid dish for accepting described lapping liquid is provided with around described grinding pad.
5. glass plate local as claimed in claim 1 lapping device, wherein,
Described workbench relative level direction is inclined, and described grinding pad is relative with this workbench and configure.
6. the glass plate local lapping device according to any one of Claims 1 to 5, wherein,
Possess glass plate whole lapping device that the whole face of described glass plate is ground.
7. a glass plate local Ginding process, wherein,
The local of the glass plate according to any one of claim 1 ~ 6 lapping device is utilized to grind glass plate.
8. a manufacturing installation for glassware, wherein, possesses: melten glass manufacturing installation; Be the forming unit of glass tape by the forming of glass after melting; Glass tape after shaping is carried out to the slow cooling unit of slow cooling; Glass tape after slow cooling is cut into the cutting unit of the glass plate of regulation shape; And the glass plate local lapping device according to any one of claim 1 ~ 6.
9. a manufacture method for glassware, wherein,
Utilize the manufacturing installation of glassware as claimed in claim 8 to manufacture glassware.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009215936 | 2009-09-17 | ||
| JP2009-215936 | 2009-09-17 | ||
| JP2010-160841 | 2010-07-15 | ||
| JP2010160841A JP5605554B2 (en) | 2009-09-17 | 2010-07-15 | Glass plate local polishing apparatus, glass plate local polishing method, glass product manufacturing apparatus, and glass product manufacturing method |
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| Publication Number | Publication Date |
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| CN102019580A CN102019580A (en) | 2011-04-20 |
| CN102019580B true CN102019580B (en) | 2015-01-21 |
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| CN201010287565.4A Active CN102019580B (en) | 2009-09-17 | 2010-09-17 | Apparatus and method for locally polishing glass plate, and apparatus and method for producing glass product |
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| CN102019580A (en) | 2011-04-20 |
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