CN102441825A - End surface grinding device for glass plates - Google Patents
End surface grinding device for glass plates Download PDFInfo
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- CN102441825A CN102441825A CN2010105027657A CN201010502765A CN102441825A CN 102441825 A CN102441825 A CN 102441825A CN 2010105027657 A CN2010105027657 A CN 2010105027657A CN 201010502765 A CN201010502765 A CN 201010502765A CN 102441825 A CN102441825 A CN 102441825A
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Abstract
The invention provides an end surface grinding device for glass plates. High-productivity belt conveying units (12) and an absorption conveying unit (14) with high positioning precision are combined to form the end surface grinding device (10), load of equipment cannot be increased, enlargement of the equipment is prevented, the shortcoming of slow production pace of the absorption conveying unit (14) is overcome by the aid of the belt conveying units (12), and productivity is improved. In addition, a sensor (18) is arranged on an upstream side of a glass plate conveying direction of a grinding unit (16), so that positions of a plurality of portions of an end surface, which is kept by the aid of absorption of the absorption conveying unit (14), of a glass plate (G) are detected, and feed forward control of the position of a grinding wheel (62) is carried out by the aid of a position control portion (20) according to the end surface positions. Accordingly, the glass plate (G) can be positioned by the aid of the absorption conveying unit (14) when in grinding processing, and the grinding wheel (62) of a grinding device (16) can track precision deviation of the end surface of the glass plate (G) to realize end surface grinding processing.
Description
Technical field
The present invention relates to the end-face grinder of glass plate, particularly relate to attrition process liquid crystal display glass substrate, plasma scope end-face grinder with the glass plate of the end face of sheet glass such as glass substrate.
Background technology
In order to remove cutting in glass plate manufacturing process fracture tiny burr that end face produces in the operation and the fine glass dust that is attached to end face, and carry out R or C chamfering for end face with glass plate.Implemented the end surface grinding of glass plate in the past always.
The end-face grinder of disclosed glass plate possesses in the patent documentation 1: absorption keeps two holding plates of glass plate; Mobile device; It intermeshes two glass holding plates; Move back and forth simultaneously,, two holding plates are being moved along moving back and forth in the shared mobile route that direction extends two holding plates going in the stroke separately along moving back and forth direction; In two holding plates backstroke separately, two holding plates are moved in another mobile route different with a mobile route; Abrasive wheel, it is two holding plates that move back and forth through mobile device going in the stroke separately, grinds being held in the end face of the glass plate of two holding plates; A pair of clamping supply unit, when passing through the end face of abrasive wheel abrading glass plate, the position, end face inside of the glass plate of clamping attrition process.
The end-face grinder of the glass plate in the patent documentation 1 is with the holding plate of the absorption conveying-type of high position precision and support glass plate end and the device that the clamping supply unit that the bending of glass plate ends is reduced combines; Be through with holding plate go to stroke and backstroke on short transverse separately, solved and be applied to the increase of the load on the equipment and the device of this problem points of equipment enlarging when improving the productivity that the absorption conveying-type has.
Patent documentation 1: (Japan) spy opens the 2004-237380 communique
, because the deviation of the machining accuracy of end face in cutting fractures operation of glass plate, end surface shape is not that linearity but curve-like perhaps have according to the position difference to have concavo-convex part etc., and its shape is various.End-face grinder through patent documentation 1 adds man-hour to the end face of this uneven shape and since glass plate when attrition process through the holding plate location, so there is the shortcoming that can not follow the tracks of the deviation of end face precision and carry out end surface grinding processing.
Owing to above reason; The lapping device of patent documentation 1 exists and can not carry out end surface grinding processing with fixing edging amount; In addition, become big protuberance suddenly in the edging amount and crack or breach in this part, perhaps the unfavorable condition of abrasive wheel damage and so on owing to grind the increase of load.Particularly, liquid crystal display glass substrate, plasma scope are with sheet glass such as glass substrates, and when its thinner thickness was 0.3～2.8mm, its end face was sharp as the blade of razor, above-mentioned unfavorable condition therefore often occurs.
Summary of the invention
The present invention makes in view of above situation; Purpose is to provide a kind of end-face grinder of glass plate, in the absorption conveying-type of high manufacturing accuracy, the processing beat is improved; And, and can not damage the end face or the lapping device of glass plate with the end face of fixing edging amount abrading glass plate.
Be to realize above-mentioned purpose, first aspect present invention provides a kind of end-face grinder of glass plate, carries roughly rectangular glass and the end face of glass is ground, and it is characterized in that possessing:
At least one pair of is with supply unit, the clamping glass plate will be by the inboard of the end face of attrition process and on will be, carrying glass plate by the prescribed direction of the end of attrition process; The absorption supply unit, absorption keeps said glass plate and on said prescribed direction, carries glass plate; Grinding unit, being pressed against the said of said glass plate of being carried by said band supply unit and said absorption supply unit will be carried out attrition process to this end face by on the end face of attrition process; Sensor is arranged at the glass sheets direction upstream side of said grinding unit, the glass plate that keeps by said absorption supply unit absorption in a plurality of location detection of a glass plate will be by the endface position of attrition process; And position control section, according to by the detected a plurality of said endface position of said sensor, FEEDFORWARD CONTROL is carried out in the position of said grinding unit.
According to first aspect present invention; Lapping device is the device that the absorption supply unit with the band supply unit of high productivity and high position precision combines; Equipment load is increased, and the low shortcoming of productivity that need not to make equipment enlarging, uses band supply unit compensation absorption supply unit to have.And; The sensor of the glass sheets direction upstream side through being arranged at grinding unit; On a glass plate; To the glass plate that keeps through the absorption of said absorption supply unit endface position detect a plurality of positions, through position control section FEEDFORWARD CONTROL is carried out in the position of grinding unit according to these a plurality of endface position.Thus, though glass plate is located by the absorption supply unit when attrition process, grinding unit can also be followed the tracks of the deviation of end face precision and move, and carries out end surface grinding processing.Thereby; Because the end face of glass plate and the relative positional accuracy between the lapping device uprise; Therefore can carry out end surface grinding processing with fixing edging amount, in addition, even for the distortion of the protuberance of the big end face of edging quantitative change in the past etc.; Grinding unit also can be followed the tracks of along its shape and move, thus can not damage glass plate end face and lapping device and can be stable carry out end surface grinding processing.
Detect about the marginal position of sensor, in a glass plate, only detect under the situation at a place,, can not hold the end surface shape of glass plate though can hold the position of glass apart from grinding unit to end face.Through detecting a plurality of positions, detection end surface shape, so lapping device can be followed the tracks of with can becoming to be similar to wire, thereby can obtain above-mentioned effect.In addition, detect the position and much can carry out high-precision end surface grinding processing more more.In addition, in the reference position that position control section is stored the end face or the glass plate of glass plate in advance, calculate its reference position and, FEEDFORWARD CONTROL is carried out in the position of grinding unit with the mode of offsetting this difference through the difference between the detected endface position of sensor.The unit that also can possess the entering of the glass plate that detects throughput direction can carry out more high-precision end surface grinding processing thus.As the mobile device of lapping device, the high ball-screw apparatus of feed accuracy of can giving an example, position control section is carried out FEEDFORWARD CONTROL to the servo motor of this ball-screw apparatus.
The end-face grinder of the glass plate of second aspect present invention is characterized by, and on the basis of first aspect present invention, the sensor is a noncontacting proximity sensor.
According to second aspect present invention, preferably use noncontacting proximity sensor as sensor.Thus, can prevent because sensor contacts the end face damage of the glass plate that causes and the damage of sensor with the end face of glass plate.Particularly, liquid crystal display glass substrate, plasma scope are with sheet glass such as glass substrates, because its thinner thickness; Be merely 0.3～2.8mm; Its end face is sharp keen as the blade of razor, and therefore, being made as sensor contactless is effective means.As noncontacting proximity sensor, be preferably the sensor of the image processing techniques (binary conversion treatment) of cameras such as utilizing CCD, CMOS, perhaps utilize the ultrasonic sensor of the distance between detection and the end face.Under the situation of camera, in order to detect the position of end face, though as long as be disposed at glass plate above or below and take the edge, consider that grinding step is the adhering to etc. of situation and lapping rejects that makes the environment of water, preferred disposition is in the top.In addition, under the situation of ultrasonic sensor,, get final product with the configuration of end face subtend for being received in the ultrasonic wave of end face reflection.
The end-face grinder of the glass plate of third aspect present invention, on the basis of the present invention first or second aspect, said absorption supply unit possesses: the adsorption section, absorption keeps said glass plate; Advance and retreat move the unit, and said adsorption section is moved with respect to said glass plate advance and retreat; Straight line mobile guide parts; Guide said adsorption section along said prescribed direction; Driver element; Said adsorption section is moved with the speed identical with the transporting velocity of said band supply unit along said straight line mobile guide parts, and make said adsorption section carry the starting position and carry to come and go between the end position and move; And control part, control said adsorption section and beginning/ends, the said advance and retreat of said glass plate absorption are moved going to that the advance and retreat of carrying out the said adsorption section of unit drives move and carry out the said adsorption section of said drive unit drives move and return action.
According to third aspect present invention; Constitute the adsorption section of absorption supply unit; Be arranged to directly to advance precision ground art skating and move through the straight line mobile guide parts height that the throughput direction along glass plate disposes, and, move back and forth between conveying starting position and conveying final position through driver element.In addition, the adsorption section move through advancing and retreat the unit glass plate enterprising retire moving.And preferably through the absorption ON/OFF (beginning/end) of control part control adsorption section to glass plate, the advance and retreat that the mobile unit of advance and retreat carries out the adsorption section move and going to of said drive unit drives adsorption section moved and return action.
That is, when control part was carried glass plate in absorption, at first, the mobile unit of control advance and retreat passed in and out the adsorption section and moves, make the adsorption section be adsorbed in glass plate on glass plate.After absorption was accomplished, control part control driver element made the adsorption section go to action, and glass plate is moved with the identical speed of transporting velocity with the band supply unit.In addition; To before the glass plate absorption, the control driver element makes the adsorption section go to action in the adsorption section, makes under the situation that glass plate moves with the speed identical with the transporting velocity of supply unit; Go in the action at this; Control part control advance and retreat move the unit, the adsorption section is passed in and out on glass plate move, and make the adsorption section be adsorbed in glass plate and get final product.And, above-mentioned go to action during, the end face of glass plate carries out attrition process through lapping device.When the lapping device of glass substrate through glass plate arrived the position of regulation, control part was removed the absorption of adsorption section to glass plate, and thereafter, the control advance and retreat move the unit, and that the adsorption section is kept out of the way from glass plate is mobile, and the control driver element stops the action of going to of adsorption section.Glass plate after attrition process finishes is taken out of from lapping device through supply unit at this.Then, control part control driver element makes the adsorption section carry out return action, and reset movement is to carrying the starting position.Thereafter, control part makes the adsorption section carry the starting position standby until through supply unit next glass plate being moved into lapping device, controls each device and carries out above-mentioned action with the moment of being moved into the regulation of lapping device at next glass plate.Thus, can times without number, successfully carry out absorption, the conveying of glass plate, the homing action of adsorption section.Because the adsorption section is along the reciprocating action of same straight line mobile guide parts, so compact conformation.Relative therewith; The holding plate of patent documentation 1; Because back and forth the path is different, a plurality of holding plates have this reciprocal path, are moved up and down the structure that the device cantilevered supports so holding plate becomes; Existence is crooked because of the quality generation of glass plate, attrition process becomes the problem of instability and so on, but can address this problem in the present invention.In addition; If being set, advance and retreat move for example air cylinder device of unit under the adsorption section; And the bar of air cylinder device and the central portion of adsorption section directly linked, can prevent further that the adsorption section is because of the crooked situation of the quality of glass plate, so preferred when carrying glass plate.In addition; The adsorption section can be disposed at either party of below, top of glass plate; Under the situation above being arranged at, directly over the adsorption section, being provided with advance and retreat move the unit for example air cylinder device and with the central portion of the bar of air cylinder device and adsorption section directly binding get final product.
The end-face grinder of the glass plate of fourth aspect present invention; On the basis of third aspect present invention; It is characterized by; Possess many said absorption supply units, each adsorbs supply unit makes each adsorption section go to action and return action with the mode with time difference under the control of said control part.
According to fourth aspect present invention; Under the situation that possesses many absorption supply units, preferred control part has time difference ground with the corresponding to mode of the conveying moment with glass plate G go to action and return action of each adsorption section of each absorption supply unit is controlled.Thus,, also can glass plate successfully be carried, thereby can enhance productivity by structure through the adsorption section even move into glass plate continuously to lapping device.
End-face grinder according to glass plate of the present invention; Because and used band mode of movement and absorption mode of movement, machining accuracy is high and can promote productive temp, in addition; Owing to can carry out attrition process to the end face of glass plate with fixing edging amount; So, can not damage the end face and the lapping device of glass plate, can stably carry out attrition process.
Description of drawings
Fig. 1 is the plane of end-face grinder of the glass plate of expression embodiment;
Fig. 2 is the longitudinal section of expression along the A-A line end face lapping device of Fig. 1;
Fig. 3 is the stereogram of the absorption supply unit of expression end-face grinder shown in Figure 1;
Fig. 4 is the longitudinal section of absorption supply unit shown in Figure 3.
Symbol description
The end-face grinder of 10 glass plates
12 band supply units
14 absorption supply units
16 lapping devices
18 sensors
20 position control section
22 endless belt conveyers
24 endless belt conveyers
26 guiding parts
28 guiding parts
30 absorption layers
32 advance and retreat move the unit
33 bars
34 guide rails
36 guide blocks
38 straight line mobile guide parts
40 driver elements
42 control parts
44 cable trays
46 flexible cables
48 moving bodys
50 cap assemblies
52 fixed frames
54 are with synchronously
56 belt pulleys
58 belt pulleys
60 motor
Emery wheel is used in 62 grindings
64 travelling carriages
66 base stations
68 feed screw devices
70 motor
72 grinding wheel drive mitors
74 tracking portions
76 moving parts
78 ball-screw apparatus
80 motor
The specific embodiment
Below, detail according to the preferred forms of accompanying drawing the end-face grinder of glass plate of the present invention.
Fig. 1 is the plane of end-face grinder 10 of the glass plate of expression embodiment, and Fig. 2 is the longitudinal section of expression along the end-face grinder 10 of the A-A line of Fig. 1.
Shown in these figure, end-face grinder 10 is mainly by up and down a pair of band supply unit 12, absorption supply unit 14, grinding unit 16, sensor 18 and position control section 20 constitute.In addition; Because these component parts 12～18 clip centre line C L shown in Figure 2 and are disposed at the left-right symmetric position, at this, the component parts 12～18 in the left side that is configured in Fig. 2 are described; About being configured in the component parts on Fig. 2 right side, being marked with identical symbol and omitting its explanation.In addition, in these figure, symbol X representes the horizontal feed direction of glass plate G, and symbol Y representes the horizontal direction with the directions X quadrature, and symbols Z is represented the above-below direction with these X, Y direction quadrature.
Shown in these figure, absorption supply unit 14 possesses absorption and keeps glass to make a plurality of absorption layers (adsorption section) 30, the 30... of glass plate G; Make absorption layer 30,30... move unit 32,32 along the advance and retreat that Z direction advance and retreat (up-down) move with respect to glass plate G; Towards known straight line mobile guide parts 38 grinding unit 16 guiding absorption layers 30,30, that form by guide rail 34 and guide block 36; Absorption layer 30,30 is moved with the speed identical with the transporting velocity of supply unit 12 along straight line mobile guide parts 38, and make absorption layer 30,30 carry the starting position and carry the driver element 40 that moves back and forth between the final position.In addition; Absorption supply unit 14 possesses control part 42, and control part 42 control absorption layers 30,30... go to action and return action to what ON/OFF, the advance and retreat of the absorption of glass plate G moved that the advance and retreat that unit 32,32 carries out absorption layer 30,30... move, driver element 40 drives absorption layers 30,30... carries out.
In addition, absorption layer 30 is made as six in the present embodiment, as long as can stably keep, carry, one or more can.Be provided with matchingly under the situation of a plurality of absorption layers 30 in size, can stably keep glass plate G, so preferred with glass plate G.In addition, in the present embodiment absorption layer 30 is arranged on the below of glass plate G, but it is also passable to be arranged on the top.
Move unit 32 as advance and retreat, for example can use cylinder, the bar 33 of this cylinder is fixed in the lower central portion of absorption layer 30.Absorption layer 30 passes in and out (rising) and lower surface butt as shown in Figure 4 and glass plate through the elongation action of bar 33 towards the lower surface of glass plate G, simultaneously, keeps out of the way mobile through the contractive action of bar 33 downwards from the lower surface of glass plate G.This keeps out of the way the amount of bow above (tens of mm) of the glass plate G that deadweight that amount of movement is set at glass plate G causes.In addition, advance and retreat move unit 32 and are not limited to cylinder, as long as can accomplish the stretch/shrink action repeatedly, can use ball-screw, but consider from the simplification of cost and structure, preferred cylinder.
In addition, absorption layer 30,30... are connected with air hose (not shown) with the absorption that is disposed at the flexible cable 46 of emitting from cable tray 44 via triple valve (not shown).This liner is connected with vacuum plant (not shown) with air hose.When opening first valve of above-mentioned triple valve, the attraction of above-mentioned vacuum plant is passed to absorption layer 30,30... via absorption with air hose.Thus, in Fig. 3,4 turnover position, the lower surface of glass plate G is adsorbed pad 30,30... adsorbs maintenance.In addition, when the valve of pent while second of first valve of above-mentioned triple valve was opened, therefore absorption layer 30,30..., removed the absorption affinity that glass plate G is produced by absorption layer 30,30... to atmosphere opening.In addition, above-mentioned triple valve is the magnetic valve that opens and closes according to the ON/OFF signal from the holding wire that is disposed at flexible cable 46, controls through control part 42.
As shown in Figure 4, advance and retreat move unit 32,32... be configured in the hollow that forms section ∏ shape moving body 48 above.These advance and retreat move unit 32,32... is connected with air hose (not shown) with the cylinder of the flexible cable of emitting from cable tray 44 46.This cylinder is connected with air feeder via not shown triple valve with air hose.Thereby; When second valve is closed when first valve of above-mentioned triple valve is opened; Air from above-mentioned air feeder is fed into the air chamber that advance and retreat move the bar elongate sides of unit 32,32... via cylinder with air hose, and the mobile unit 32 of advance and retreat, the bar 33 of 32..., 33... extend respectively.In addition; When valve of the pent while second of first valve of above-mentioned triple valve is opened; Air is supplied to air chamber that advance and retreat move the bar contraction side of unit 32,32... via cylinder with air hose by above-mentioned air feeder, and the mobile unit 32 of advance and retreat, the bar 33 of 32..., 33... shrink respectively.In addition, above-mentioned triple valve is the magnetic valve that opens and closes according to the ON/OFF signal from the holding wire that is disposed at flexible cable 46, controls through control part 42.
Moving body 48 constitutes the guide block 36 that below it, is fixed with straight line mobile guide parts 38, thus, moves along the directions X art skating of guide rail 34 at Fig. 3.In addition, at the hollow bulb of moving body 48, slotting wildcard is equipped with the cap assembly 50 that forms section ∏ shape as shown in Figure 4.This cap assembly 50 is as shown in Figure 3 along the directions X configuration, and two ends are fixed in not shown fixed part.And then cap assembly 50 forms and covers size, the length that is positioned at fixed frame 52 cap assembly 50 belows, that contain cable tray 44.Thus, stoped grinding unit 16 employed cutting fluids or cooling fluid to immerse in the fixed frame 52 through cap assembly 50.
Driver element 40 by synchronously with 54, tensioning is provided with synchronously with 54 a pair of belt pulley 56,58 and give belt pulley 56 revolving forces and make synchronously with 54 to continue to use the positive veer that arrow A representes and the motor 60 that moves with the reverse directions B rotation that arrow B is represented constitutes.Synchronously with 54 belows that are disposed at cap assembly 50 as shown in Figure 4, and a part that is disposed at the hollow bulb of moving body 48 is fixed in moving body 48.Thereby; Be with 54 synchronously when arrow A direction rotation is moved when making through motor 60; Moving body 48 moves towards the conveying final position from the conveying starting position of end-face grinder 10; In addition, be with 54 synchronously when arrow B direction rotation is moved when making through motor 60, moving body 48 from the conveying starting position of end-face grinder 10 towards carrying final position to move.This motor 60 is also through control part 42 its direction of rotation of control.In addition, driver element 40 is not limited to present embodiment, as long as the device that moving body 48 is moved along prescribed direction.
On the other hand, as shown in Figure 1, grinding unit 16 possesses a pair of grinding that is set up in parallel at directions X with emery wheel 62,62.These emery wheels the 62, the 62nd, the emery wheel of the end face of attrition process glass plate G, the therefore travelling carriage 64,64 (travelling carriage 64 is not shown) that is loaded on respectively as shown in Figure 2.These travelling carriages 64, its underpart can freely slide along the Y direction on the base station 66 that is supported in end-face grinder 10 movably, are arranged at the motor 70 of the feed screw device 68 of its underpart through driving, make travelling carriage 64 integral body slide mobile along the Y direction.Regulate thus and clip CL and the interval of the emery wheel 62,62 of subtend.That is, this travelling carriage 64 slides to move when the work of transformation of the size of change glass plate G and carries out.
Yet travelling carriage 64 is made up of the tracking portion 74 of loading emery wheel 62 and grinding wheel drive mitor 72, the moving part 76 that links via feed screw device 68 and base station 66, and tracking portion 74 moves to carry along Y direction art skating with respect to this moving part 76 and puts.In addition, be provided with at moving part 76 and make tracking portion 74 critically slide mobile ball-screw apparatus 78 along the Y direction, through the motor 80 that drives this ball-screw apparatus 78, tracking portion 74 moves along the Y direction is accurate.This motor 80 is as shown in Figure 1 to carry out drive controlling through position control section 20, and position control section 20 is controlled motor 80 according to the marginal position of the end face of the glass plate G of autobiography sensor 18 outputs.
When first glass plate G before the test section that detects through not shown inlet substrate detects end surface grinding moved into the inlet (upstream side) of end-face grinder 10; After its stipulated time of process, inlet positioning element (not shown) passes in and out mobile towards glass plate G.Thus, glass plate G is positioned with respect to band supply unit 12 and absorption supply unit 14.And; In the location of above-mentioned inlet positioning element to glass plate G; From carrying starting position side shifting (going to mobile synchronously) downstream, after its stipulated time of process, absorption layer A moves unit 32 through advancing and retreat and passes in and out mobile towards glass plate G absorption layer A (absorption layer 30 of the absorption supply unit 14 in left side among Fig. 2) through absorption supply unit 14; Through after its stipulated time, carry out the absorption maintenance of absorption layer A to glass plate G.Thereby glass plate G carries towards grinding unit 16 through band supply unit 12 and absorption supply unit 14 these Unit two.
Then, through during the stipulated time, glass plate G is through near the sensor 18 after adsorbing, and thus, detects the endface position of glass plate G by sensor 18, and this endface position is outputed to position control section 20.Then, position control section 20 is according to carrying out FEEDFORWARD CONTROL from a plurality of endface position of sensor 18 outputs to the motor 80 of ball-screw apparatus 78, according to the mode of the end surface shape of the Position Tracking glass plate G of emery wheel 62 follower 74 moved along the Y direction.Thus, the end face of glass plate G is by attrition process accurately.In addition, in the attrition process of glass plate G, glass plate G also carries through band supply unit 12 and absorption supply unit 14 these Unit two.
In the attrition process of first glass plate G and after the processing; When second glass plate G before detecting end surface grinding through above-mentioned test section moved into the inlet of end-face grinder 10; After having passed through its stipulated time, above-mentioned inlet positioning element moves towards glass plate G turnover.Thus, glass plate G is positioned with respect to band supply unit 12 and absorption supply unit 14.And; In the location of above-mentioned inlet positioning element to glass plate G; Absorption layer B (absorption layer 30 of the absorption supply unit 14 on right side among Fig. 2) is from upstream side side shifting (going to mobile synchronously) downstream, and through after its stipulated time, absorption layer B moves unit 32 through advance and retreat and moves towards glass plate G turnover; Through after its stipulated time, carry out the absorption maintenance of absorption layer B to glass plate G.Thereby second glass plate G is transferred towards grinding unit 16 through band supply unit 12 and absorption supply unit 14 these Unit two.
Then, through during the stipulated time, glass plate G is through near the sensor 18 after absorption, thus, detects the endface position of second glass plate G by sensor 18, and this endface position is outputed to position control section 20.Then, position control section 20 is according to carrying out FEEDFORWARD CONTROL from a plurality of endface position of motor 18 outputs to the motor 80 of ball-screw apparatus 78, with the mode of the end surface shape of the Position Tracking glass plate G of emery wheel 62 follower 74 moved along the Y direction.Thus, the end face of second glass plate G is by attrition process accurately.In addition, in the attrition process of second glass plate G, second glass plate G also is transferred through band supply unit 12 and absorption supply unit 14 these Unit two.
On the other hand; Absorption layer A is after the attrition process of glass plate G finishes; When confirming that through the test section of outlet substrate detection glass plate G is taken out of from grinding unit; Then remove the absorption to first glass plate G, through after the stipulated time, absorption layer A moves unit 32 through advancing and retreat and keeps out of the way mobile downwards from glass plate G.Through stipulated time after move to conveying final position, temporarily stop after thereafter; Return mobile at a high speed through absorption supply unit 14; Get back to original conveying starting position, then, standby is to be detected up to the 3rd glass substrate G; When the 3rd glass substrate G is detected, then repeat above-mentioned action.In addition, absorption layer B also repeats same action.
As stated; The end-face grinder 10 of embodiment is the device that the absorption supply unit 14 with band supply unit of high productivity 12 and high position precision combines; Can not increase equipment load; And can not make equipment enlarging, the slow shortcoming of productive temp with band supply unit 12 compensation absorption supply units 14 have has improved productivity.
And; The sensor 18 of the glass sheets direction upstream side through being arranged at grinding unit 16; On a glass plate G; Endface position to adsorbing the glass plate G that keeps by absorption supply unit 14 detects a plurality of positions, according to these a plurality of marginal positions, carries out FEEDFORWARD CONTROL through the position of 20 pairs of emery wheels 62 of position control section.
Thus, glass plate G can be positioned through absorption supply unit 14 when attrition process, and the emery wheel 62 of grinding unit 16 can be followed the tracks of the deviation of end face precision and carry out end surface grinding processing.That is, the relative positional accuracy between the end face of glass plate G and the emery wheel 62 is high, compares with existing apparatus; Can carry out end surface grinding processing with fixing edging amount; In addition, because in the convex part deformation of the big end face of edging quantitative change, emery wheel 62 also can be followed the tracks of along its shape and move; So can not damage end face and the emery wheel 62 of glass plate G, can stably carry out end surface grinding processing.
Position probing about the end face of 18 couples of glass plate G of sensor; In a glass plate, only detect under the situation of a position; Though can hold the relative position between glass plate G and the emery wheel 62, can not hold the skew that the carrying of shape and glass G of the end face of glass plate G causes.According to present embodiment; Because the endface position of glass plate G is carried out a plurality of position probing; Become near linear shape or curve-like so can detect end surface shape, even the delivery precision of glass G is poor in addition, owing to can hold the end face of glass plate G and the relative position between the emery wheel 62; The tracking accuracy of emery wheel 62 also can uprise, and also can access above-mentioned effect.In addition, above-mentioned a plurality of position for example is inserted with the spacing of 5～500mm degree.Because the sampling spacing of sensor 18 is more little good more, is preferably 5～10mm.Can easily tackle protuberance thus.
In addition, store the reference position, edge of the end face of glass plate in advance in position control section 20, calculate this reference position, edge and, FEEDFORWARD CONTROL is carried out to offset this difference in the position of emery wheel 62 through the difference between the sensor 18 detected marginal positions.As the mobile unit of emery wheel 62,, be not limited thereto though the high ball-screw apparatus 68 of feed accuracy is suitable.
In addition, as sensor 18, preferably use noncontacting proximity sensor.Thus, can prevent because sensor 18 contacts damage and the damage of sensor 18 of the end face of the glass plate G that causes with the end face of glass plate G.Particularly, liquid crystal display glass substrate, plasma scope are with sheet glass such as glass substrates, because its thinner thickness is 0.3～2.8mm, its end face is sharp keen as the blade of razor, and therefore, being made as sensor contactless is effective method.
As noncontacting proximity sensor 18, preferably utilize the sensor of the image processing techniques (binary conversion treatment) of cameras such as CCD, CMOS, perhaps utilize the ultrasonic sensor of the distance between detection and the end face.Under the situation of camera, in order to detect the marginal position of end face, as long as configuration and to taking at the edge above or below glass plate G, but when considering that grinding step is to use the situation such as adhere to of environment and lapping rejects of water, be preferably up and dispose.In addition, under the situation of ultrasonic sensor, get final product according to hyperacoustic mode that can be received in end face reflection and the configuration of end face subtend.
Here, in embodiment, though as absorption supply unit 14 the adsorption section illustration absorption layer 30 of difficult generation flaw, be not limited thereto.For being improved, delivery precision also can on the block of the metal of stainless steel, iron etc. vacuum suction portion be set at for example aluminium.
Moreover; In the end-face grinder 10 of embodiment; Possess two absorption supply units 14,14, each adsorbs supply unit 14,14 and moves and return action through control part 42 going to of each absorption layer 30,30 of control according to the conveying corresponding to mode on opportunity with glass plate G with having the time difference.Thus, need not to be interrupted to end-face grinder 10 and move into glass plate G, can successfully carry glass plate G through absorption layer 30,30 even move into continuously also.In addition, the platform number of absorption supply unit 14 is not limited to two, also can be more than three.In addition, emery wheel 62 also can be the chamfering abrasive wheel that corner has been carried out chamfering.
Claims (4)
1. the end-face grinder of a glass plate is carried roughly rectangular glass and the end face of glass is ground, and it is characterized in that possessing:
At least one pair of is with supply unit, the clamping glass plate will be by the inboard of the end face of attrition process and on will be, carrying glass plate by the prescribed direction of the end of attrition process;
The absorption supply unit, absorption keeps said glass plate and on said prescribed direction, carries glass plate;
Grinding unit, being pressed against the said of said glass plate of being carried by said band supply unit and said absorption supply unit will be carried out attrition process to this end face by on the end face of attrition process;
Sensor is arranged at the glass sheets direction upstream side of said grinding unit, the glass plate that keeps by said absorption supply unit absorption in a plurality of location detection of a glass plate will be by the endface position of attrition process; And
Position control section according to by the detected a plurality of said endface position of said sensor, is carried out FEEDFORWARD CONTROL to the position of said grinding unit.
2. the end-face grinder of glass plate as claimed in claim 1, said sensor is a noncontacting proximity sensor.
3. according to claim 1 or claim 2 the end-face grinder of glass plate, wherein, said absorption supply unit possesses:
The adsorption section, absorption keeps said glass plate;
Advance and retreat move the unit, and said adsorption section is moved with respect to said glass plate advance and retreat;
Straight line mobile guide parts guide said adsorption section along said prescribed direction,
Driver element makes said adsorption section move with the speed identical with the transporting velocity of said band supply unit along said straight line mobile guide parts, and makes said adsorption section carry the starting position and carry to come and go between the end position and move; And
Control part is controlled said adsorption section and beginning/ends, the said advance and retreat of said glass plate absorption are moved going to that the advance and retreat of carrying out the said adsorption section of unit drives move and carry out the said adsorption section of said drive unit drives is moved and return action.
4. the end-face grinder of glass plate as claimed in claim 3 wherein, possesses many said absorption supply units, and each adsorbs supply unit makes each adsorption section go to action and return action with the mode with time difference under the control of said control part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105027657A CN102441825A (en) | 2010-09-30 | 2010-09-30 | End surface grinding device for glass plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105027657A CN102441825A (en) | 2010-09-30 | 2010-09-30 | End surface grinding device for glass plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102441825A true CN102441825A (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105027657A Pending CN102441825A (en) | 2010-09-30 | 2010-09-30 | End surface grinding device for glass plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102441825A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103433824A (en) * | 2013-08-06 | 2013-12-11 | 昆山龙腾光电有限公司 | Method for edging liquid crystal display panels and edging equipment |
| WO2014075278A1 (en) * | 2012-11-13 | 2014-05-22 | 深圳市华星光电技术有限公司 | Device and method for correcting position of glass substrate |
| CN106584225A (en) * | 2016-12-21 | 2017-04-26 | 重庆天和玻璃有限公司 | Automatic glass strip grinding device |
| CN109227335A (en) * | 2017-07-10 | 2019-01-18 | 蓝思科技（长沙）有限公司 | Glass polishing device, glass polishing equipment and glass polishing method |
| CN109434593A (en) * | 2018-11-26 | 2019-03-08 | 佛山市南海东泰创展精密机械有限公司 | A kind of edge polisher and its application method with detection function |
| CN109562975A (en) * | 2016-08-01 | 2019-04-02 | 日本电气硝子株式会社 | The manufacturing method and device for producing glass sheet of glass plate |
| CN114088729A (en) * | 2022-01-21 | 2022-02-25 | 潍坊佳昇光电科技有限公司 | Device and method for detecting quality of glass end face of carrier plate |
| CN115415900A (en) * | 2022-11-07 | 2022-12-02 | 常州恒联机械五金有限公司 | Automatic grinding equipment for bent pipe |
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- 2010-09-30 CN CN2010105027657A patent/CN102441825A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014075278A1 (en) * | 2012-11-13 | 2014-05-22 | 深圳市华星光电技术有限公司 | Device and method for correcting position of glass substrate |
| CN103433824A (en) * | 2013-08-06 | 2013-12-11 | 昆山龙腾光电有限公司 | Method for edging liquid crystal display panels and edging equipment |
| CN103433824B (en) * | 2013-08-06 | 2015-08-26 | 昆山龙腾光电有限公司 | The edging method of display panels and edger unit |
| CN109562975A (en) * | 2016-08-01 | 2019-04-02 | 日本电气硝子株式会社 | The manufacturing method and device for producing glass sheet of glass plate |
| CN109562975B (en) * | 2016-08-01 | 2022-04-22 | 日本电气硝子株式会社 | Method for producing glass plate and glass plate production device |
| CN106584225A (en) * | 2016-12-21 | 2017-04-26 | 重庆天和玻璃有限公司 | Automatic glass strip grinding device |
| CN106584225B (en) * | 2016-12-21 | 2018-10-02 | 重庆天和玻璃有限公司 | Glass bar automatically grinding device |
| CN109227335A (en) * | 2017-07-10 | 2019-01-18 | 蓝思科技（长沙）有限公司 | Glass polishing device, glass polishing equipment and glass polishing method |
| CN109434593A (en) * | 2018-11-26 | 2019-03-08 | 佛山市南海东泰创展精密机械有限公司 | A kind of edge polisher and its application method with detection function |
| CN114088729A (en) * | 2022-01-21 | 2022-02-25 | 潍坊佳昇光电科技有限公司 | Device and method for detecting quality of glass end face of carrier plate |
| CN115415900A (en) * | 2022-11-07 | 2022-12-02 | 常州恒联机械五金有限公司 | Automatic grinding equipment for bent pipe |
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Application publication date: 20120509 |