CN102085505A - Method for controlling sealant coater - Google Patents
Method for controlling sealant coater Download PDFInfo
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- CN102085505A CN102085505A CN2010105607421A CN201010560742A CN102085505A CN 102085505 A CN102085505 A CN 102085505A CN 2010105607421 A CN2010105607421 A CN 2010105607421A CN 201010560742 A CN201010560742 A CN 201010560742A CN 102085505 A CN102085505 A CN 102085505A
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- substrate
- driver element
- height
- axle driver
- nozzle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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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
Abstract
The invention discloses a method for controlling a sealant coater. The method includes measuring the height of the upper surface of a substrate installed on a support bench, and setting optimal coating condition according to the height of the upper surface of the substrate. In this way, sealant can be effectively coated on the substrate.
Description
Technical field
The present invention relates to control the method for fluid sealant coating machine.
Background technology
Generally speaking, flat-panel monitor (FPD) is than the conventional television or the thinner and lighter video display of display that use cathode-ray tube.The FPD example of having developed and having used is LCD (LCD), Plasmia indicating panel (PDP), field-emitter display (FED) and Organic Light Emitting Diode (OLED).
Among them, LCD is a kind of like this display, and it provides based on the data of image information signal separately to the liquid crystal cells that is arranged as matrix, controls the light transmission of liquid crystal cells with this, thereby shows the expection image.Because LCD has advantage thin, light, that power consumption is low and operating voltage is low, now use widely.Below the method that generally is used in the liquid crystal panel among the LCD in order to make will be described.
At first, on upper substrate, form colored filter and common electrode, and on the infrabasal plate relative, form thin film transistor (TFT) (TFT) and pixel electrode with upper substrate.Subsequently, after being applied to alignment film on the substrate, the friction matching film is so that for liquid crystal molecule provides tilt angle and alignment direction, these liquid crystal molecules are present in the liquid crystal layer that will form between alignment film.
In addition, in order to keep the predetermined gap between the substrate, the leakage that prevents liquid crystal and the gap between the hermetic sealing substrate, with fluid sealant with at least one to the substrate of predetermined pattern application, to form sealant pattern.Afterwards, between substrate, form liquid crystal layer.Make liquid crystal panel by this way.
When making liquid crystal panel, use the fluid sealant coating machine on substrate, to form sealant pattern.The fluid sealant coating machine comprises: saddle, substrate are installed on the described saddle; Coating head unit, each in the described coating head unit all have the nozzle of discharging fluid sealant; With the coating head unit support frame, described coating head unit support frame supports coating head unit.
This fluid sealant coating machine forms sealant pattern on substrate in the relative position that changes each nozzle and substrate.Be that the fluid sealant coating machine is when making the gap that is consistent between nozzle and the substrate by the nozzle that vertically moves each coating head unit along Z-direction, move horizontally nozzle and/or substrate along X-axis and Y direction, and discharge fluid sealant to substrate from nozzle, form sealant pattern thus.
In order to measure the distance between substrate and the nozzle, each coating head unit has been equipped with laser distance sensor.Laser distance sensor comprises to the luminous component of substrate emission laser beam and receives from the luminous component emission and from the light receiving component of the upper surface laser light reflected bundle of substrate.And coating head unit is equipped with and is connected with nozzle so that along the Z-direction Z axle driver element of moving nozzle vertically.Like this, the substrate that control module control and laser distance sensor are measured and the Z axle driver element of the distance dependent between the nozzle are controlled the vertical position of nozzle with this, and the distance between substrate and the nozzle are consistent.
If substrate is installed on the saddle, the height of the upper surface of substrate can not be consistent, and the height of the upper surface of substrate may be according to the shape of the upper surface of the characteristic of substrate or saddle and in the vertical direction changes.
For each part of coating fluid sealant, the height of the upper surface of substrate may be different.The bigger part of height change that may have the upper surface of substrate, promptly the gradient upper surface that demonstrates substrate in height has the part of relatively large variation.Existing fluid sealant coating machine is carried out control, the feasible gradient no matter the upper surface variation in height of substrate is shown is to be greatly little, the drive cycle of adjusting the Z axle driver element of nozzle vertical position all is constant, and Z axle driver element actuating speed vertically also is constant.
Thus, the problem of existing fluid sealant coating machine is that the upper surface that demonstrates substrate in gradient in height has in the part of bigger variation, and nozzle moves or moves down on can be not correctly, makes that the distance between substrate and the nozzle is inhomogeneous.
Summary of the invention
Therefore, at the above problem that produces in the prior art the present invention is proposed, and the purpose of this invention is to provide a kind of method of controlling the fluid sealant coating machine, described method measurement is installed in the height of the upper surface of the substrate on the saddle, and utilize measured height that fluid sealant coating condition is set best, improve the fluid sealant coating performance with this.
In order to realize above purpose, the invention provides a kind of method of controlling the fluid sealant coating machine, described fluid sealant coating machine comprises: nozzle, described nozzle is to placing the substrate on the saddle to discharge fluid sealant; And coating head unit, described coating head unit has the Z axle driver element of the vertical position of adjusting nozzle, described method comprises: (a) measure the upper surface variation in height that places the substrate on the saddle, and (b) utilization is controlled the driving of Z axle driver element in the upper surface variation in height of (a) measured substrate.
(b) can comprise the drive cycle of controlling Z axle driver element.
Be under the situation of drive cycle of control Z axle driver element at (b), (b) can comprise: calculate the minimum drive cycle with the corresponding Z axle of gradient the best part driver element, described gradient illustrates the upper surface variation in height of substrate; And control the driving of Z axle driver element with minimum drive cycle.
In addition, be under the situation of drive cycle of control Z axle driver element at (b), (b) can comprise:, calculate the drive cycle of Z axle driver element at each part of coating fluid sealant according to the upper surface variation in height of substrate; And the drive cycle that utilizes each part is controlled the driving of Z axle driver element.
And, (b) can comprise control Z axle driver element actuating speed vertically.
Be under the situation of actuating speed of control Z axle driver element at (b), (b) can comprise: calculate the maximum drive speed with the corresponding Z axle of gradient the best part driver element, described gradient illustrates the upper surface variation in height of substrate; And control the driving of Z axle driver element with maximum drive speed.
In addition, be under the situation of actuating speed of control Z axle driver element at (b), (b) can comprise:, calculate the actuating speed of Z axle driver element at each part of coating fluid sealant according to the upper surface variation in height of substrate; And control the driving of Z axle driver element with the actuating speed of each part.
And,, can control the drive cycle and the actuating speed of Z axle driver element simultaneously at (b).
Description of drawings
By detailed description below in conjunction with accompanying drawing, can understand aforesaid and other purpose, feature, aspect and the advantage of the present invention more, wherein:
Fig. 1 is the stereogram that illustrates according to fluid sealant coating machine of the present invention;
Fig. 2 is the stereogram of coating head unit that the fluid sealant coating machine of Fig. 1 is shown;
Fig. 3 is the figure that diagram is installed on the upper surface variation in height of the substrate on the saddle of fluid sealant coating machine of Fig. 1;
Fig. 4 is the flow chart that illustrates according to the method for the control fluid sealant coating machine of first embodiment of the invention;
Fig. 5 is the flow chart that illustrates according to the method for the control fluid sealant coating machine of the modification of first embodiment;
Fig. 6 is the flow chart that illustrates according to the method for the control fluid sealant coating machine of second embodiment of the invention; And
Fig. 7 is the flow chart that illustrates according to the method for the control fluid sealant coating machine of the modification of second embodiment.
The specific embodiment
Hereinafter the method for controlling the fluid sealant coating machine according to the preferred embodiment of the invention will be described in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, fluid sealant coating machine according to the present invention comprises that framework 10, saddle 20, a pair of support frame move guide member 30, coating head unit support frame 40, coating head unit 50 and control module (not shown).Saddle 20 is installed on the framework 10, and substrate S places on the saddle 20.Support frame moves guide member 30 is arranged at saddle 20 in the mode of extending along Y direction opposite side.Coating head unit support frame 40 is installed in saddle 20 tops in the mode that is moved guide member 30 its opposed ends of support by a pair of support frame, and extends along X-direction.Each coating head unit 50 is mounted to coating head unit support frame 40 in the mode that moves along X-direction.Control module control fluid sealant coating operation.
The X-axis mobile unit 21 and the y-axis shift moving cell 22 that is used for moving along Y direction saddle 20 that are used for moving along X-direction saddle 20 can be installed on framework 10.Just, the Y-axis guide member 221 of y-axis shift moving cell 22 is installed on the framework 10, and the X-axis guide member 211 of X-axis mobile unit 21 is installed on the Y-axis guide member 221, and saddle 20 places on the X-axis guide member 211.This structure allows saddle 20 by X-axis guide member 211 and along the X-direction guiding and move, thereby and allows X-axis guide member 211 by 221 guidings of Y-axis guide member with move saddle 20 is moved along Y direction.Simultaneously, the present invention is not restricted to Y-axis guide member 221 and is installed on the framework 10 and X-axis guide member 211 is installed in structure on the Y-axis guide member 221, is installed on the framework 10 and Y-axis guide member 221 is installed in structure on the X-axis guide member 211 but can have X-axis guide member 211.Certainly, can be by application X-axis mobile unit 21 and X-axis guide member 211, or to use y-axis shift moving cell 22 and Y-axis guide member 221, and saddle 20 is only moved along a direction in X-axis and the Y direction with fluid sealant coating machine structure of the present invention.
Support frame mobile unit 41 is installed on the opposed end of coating head unit support frame 40, is connected to move guide member 30 with support frame.The interaction permission coating head unit support frame 40 that support frame moves between guide member 30 and the support frame mobile unit 41 is that Y direction moves along the length direction that each support frame moves guide member 30.Thus, coating head unit 50 can move along Y direction moving of Y-axis by coating head unit support frame 40.
Coating head unit moves guide member 42 can be mounted to coating head unit support frame 40 in the mode of extending along X-direction, and coating head unit mobile unit 51 can move the mode that guide member 42 is connected with the coating head unit with coating head unit support frame 40 and is arranged on each coating head unit 50.Coating head unit moves interaction between guide member 42 and the coating head unit mobile unit 51, and to allow coating head unit 50 be that X-direction moves along the length direction of coating head unit support frame 40.
Like this, according to by X-axis and the determined XY device of Y-axis coordinate system, coating head unit 50 is moved along X-direction and/or Y direction.
As shown in Figure 2, coating head unit 50 comprises the syringe 52 that is filled with fluid sealant.Nozzle 53 is communicated with syringe 52 and discharges fluid sealant.Laser distance sensor 54 and nozzle 53 placed adjacent are with the distance between gaging nozzle 53 and the substrate S.Y-axis driver element 55 is along Y direction moving nozzle 53 and laser distance sensor 54.Z axle driver element 56 is along Z-direction moving nozzle 53 and laser distance sensor 54.
Laser distance sensor 54 comprises the luminous component 541 of launching laser beam and separates and receive from the light receiving component 542 of substrate S laser light reflected bundle with predetermined space and luminous component 541.Laser distance sensor 54 is measured distance between substrate S and the nozzle 53 to the control module output signal of telecommunication with this, wherein this signal of telecommunication is and forms the corresponding and generation in position from luminous component 541 emissions and from the image of substrate S laser light reflected bundle.
In addition, can sectional area sensor 57 be installed on coating head unit 50, be applied to the sectional area of the sealant pattern P of substrate S with measurement.Sectional area sensor 57 is constantly launched laser beam and is scanned sealant pattern P to substrate S, measures the sectional area of sealant pattern P with this.Be used for determining whether defectiveness of sealant pattern P by the sectional area sensor 57 measured relevant data of the sectional area with sealant pattern P.
In addition, can be with image unit 58 with adjacent with nozzle 53 and be arranged at coating head unit 50 towards the mode of substrate S.When nozzle 53 by coating head unit support frame 40 the moving and coating head unit 50 during of Y-axis X-axis mobile and mobile, image unit 58 is used for the current location of gaging nozzle 53.
Method according to control fluid sealant coating machine of the present invention hereinafter will be described.
As shown in Figure 3, if substrate S is installed on the saddle, the height of the upper surface of substrate S can not be consistent, and the height of the upper surface of substrate S may be according to the shape of the upper surface of the characteristic of substrate S or saddle 20 and in the vertical direction changes.Here, when placing substrate S on the saddle 20, the height of the upper surface of substrate S can be the height from the upper surface of saddle 20 to the upper surface of substrate S.Alternatively, the height of the upper surface of substrate S also may be from specifying the height of datum mark to the upper surface of substrate S.
As shown in Figure 3, when the height of the upper surface of measuring substrate S at each part, the height of the upper surface of substrate S and variation in height may be different in each part.If height a, b, c, d and the e of the upper surface of substrate S measure in measurement point A, B with the regular spaces appointment on substrate S, C, D and E place, then can measure upper surface changing value (hereinafter being referred to as the height change value) in height and the gradient (hereinafter being referred to as the height change gradient) that variation in height is shown of substrate S at each part.For example, because the height of the upper surface of substrate S reduces to height b from height a in the AB part, therefore the upper surface variation in height of substrate S equals b-a in the AB part, and the height change gradient of the upper surface of substrate S equals (b-a)/(B-A).In addition, because the height of the upper surface of substrate S is increased to height d from height c in the CD part, therefore the height change value of the upper surface of substrate S equals d-c in the CD part, and the height change gradient of the upper surface of substrate S equals (d-c)/(D-C).Like this, in the various piece that is provided with regular spaces, measure the height of the upper surface of substrate S, and utilize measured height to measure the height change value of the upper surface of substrate S in each part.Referring to Fig. 3, the part of the height change value minimum of the upper surface of substrate S is the AB part as can be seen, and the height change value the best part of the upper surface of substrate S is the CD part.In addition, referring to Fig. 3, as can be seen in AB part by the height change gradient minimum of the upper surface of the represented substrate S of formula (b-a)/(B-A), and in the CD part by formula (d-c)/(D-C) represented the height change gradient maximum of upper surface of substrate S.Therefore, compare, can find out the height change gradient the best part of the upper surface of substrate S by upper surface variation in height to the substrate S in the various piece.
Simultaneously, in order to adjust the vertical position of nozzle 53 according to the upper surface variation in height of substrate S, the fluid sealant coating machine utilizes laser distance sensor 54 to measure distance between substrate S and the nozzle 53, and control Z axle driver element 56 according to measured distance, with this distance between substrate S and the nozzle 53 is consistent.
Suppose that the speed that substrate S or nozzle 53 move horizontally with the coating fluid sealant is constant, then when in height having the part of less variation to compare with the upper surface of substrate S, for the distance between substrate S and the nozzle 53 is consistent, in height there is the part of bigger variation must carry out vertically moving of nozzle 53 more quickly at the upper surface of substrate S.
Z axle driver element 56 is controlled in each part variation in height that is based on the upper surface of substrate S according to the method for control fluid sealant coating machine of the present invention, thereby allows to carry out apace the vertical motion of nozzle 53.
To method according to the control fluid sealant coating machine of first embodiment of the invention be described in conjunction with Fig. 4 and Fig. 5 now.In first embodiment of the present invention, description is controlled the method for the drive cycle of Z axle driver element 56 according to each part variation in height of the upper surface of substrate S.
Control module sends control signal to Z axle driver element 56, controls the operation of Z axle driver element 56 thus.The operation of Z axle driver element 56 moves up or down nozzle 53, thereby adjusts the vertical position of nozzle 53, and adjusts consistent with the vertical distance between the nozzle 53 substrate S thus.Like this, control module is controlled the operation of Z axle driver element 56 by control signal being sent to Z axle driver element 56.It is the drive cycle of Z axle driver element 56 at interval that control module sends control signal to Z axle driver element 56 elapsed times.
In order to calculate the drive cycle of Z axle driver element 56 based on the height change value of the substrate S upper surface of each part, at first place the height of the upper surface of the substrate S on the saddle 20 in step S11 or S21 measurement.
Height for the upper surface of measuring substrate S can use the laser distance sensor 54 that is mounted to coating head unit 50.Except that laser distance sensor 54, also can use the structure of machinery or electronics.
Can measure the height of substrate S entire upper surface.Alternatively, can only measure substrate S and go up the actual height that is coated with the part of fluid sealant, promptly nozzle 53 moves and is coated with the part of fluid sealant.
Can with the relevant data Input Control Element of height of the upper surface of measured substrate S.Thus, control module can utilize measured height to control Z axle driver element 56.
After the height of the upper surface of having measured substrate S, control module calculates the height change value of upper surface of substrate S and/or the height change gradient of each part based on the data relevant with the height of the upper surface of substrate S.By various piece variation is in height compared, can determine gradient the best part (for example CD part of Fig. 3).In addition, in the optimal drive cycle that step S12 calculates Z axle driver element 56, with as above-mentioned determined gradient the best part corresponding.
If the speed of moving horizontally of nozzle 53 is that the horizontal coating speed of nozzle 53 is constant, then the drive cycle of Z axle driver element 56 is short more, and is just short more in order to the time interval that the vertical position of adjusting nozzle 53 is required.The height change gradient the best part of the upper surface of substrate S is compared with other parts, must adjust the vertical position of nozzle 53 in having the part of greatest gradient with the short time interval.Therefore, preferably in height has the drive cycle minimum that makes Z axle driver element 56 in the maximum part that changes at the upper surface that gradient shows substrate S.
If the drive cycle of Z axle driver element 56 can be set to ideally as much as possible shortly, then the vertical position of nozzle 53 can be adjusted into best upper surface variation in height corresponding to substrate S.But,, then may undesirably increase vibrations by the operation generation of Z axle driver element 56 if the drive cycle of Z axle driver element 56 is too short.
Therefore, can be appointed as the minimum drive cycle of Z axle driver element 56 with the drive cycle of the corresponding Z axle of the height change gradient the best part driver element 56 of the upper surface of substrate S, and preferably control the driving of Z axle driver element 56 at step S13 with minimum drive cycle.
In the case, to substrate S coating fluid sealant the time, can utilize above-mentioned minimum drive cycle to control Z axle driver element 56 equably in the whole coated portion of substrate S.Like this, no matter in the little part of height change gradient still in the big part of height change gradient, can according to the upper surface of substrate S in height variation and adjust the vertical position of nozzle 53 best.Thus, when distance between substrate S and the nozzle 53 is consistent, can be to substrate S coating fluid sealant.
Simultaneously, under the situation of the driving of controlling Z axle driver element 56 with minimum drive cycle, it is suitable for height change gradient the best part.But described minimum drive cycle is compared to the best drive cycle of the little part of height change gradient and will lacks.Therefore, in the little part of height change gradient, needn't control the driving of Z axle driver element 56 with above-mentioned minimum drive cycle.
Preferably, as shown in Figure 5, in step S22 basis is the height change value (or height change gradient) of the upper surface of the measured substrate S of each part, calculate the drive cycle of Z axle driver element 56 at each part, and utilize the drive cycle of each part to control the driving of the Z axle driver element 56 of each coated portion at step S23.
Therefore, in substrate S coating fluid sealant, can control Z axle driver element 56 with drive cycle at each part of substrate S.Just, the part that the part that the height change value of the upper surface of substrate S (or height change gradient) is big (for example CD part of Fig. 3) is little with the height change value (or height change gradient) of the upper surface of substrate S (for example AB part of Fig. 3) is when comparing, in the big part of height change value, control Z axle driver element 56, and control Z axle driver element 56 with long drive cycle in the little part of height change value with short drive cycle.
Like this, because can be according to the upper surface variation in height of the substrate S drive cycle at each part control Z axle driver element 56, therefore the whole coated portion at substrate S can make the distance between substrate S and the nozzle 53 be consistent effectively.
The upper surface variation in height that places the substrate S on the saddle 20 at each part measurement according to the method for the control fluid sealant coating machine of first embodiment of the invention, and utilize measured value to control the drive cycle of Z axle driver element 56, thus according to the upper surface of substrate S in height variation and control the vertical position of nozzle 53 best, thereby in whole fluid sealant coating operation, the distance between substrate S and the nozzle 53 is consistent.
Below with reference to Fig. 6 and Fig. 7 method according to the control fluid sealant coating machine of second embodiment of the invention is described.In second embodiment of the present invention, will method that control the actuating speed of Z axle driver element 56 according to the upper surface variation in height of substrate S be described.Here, the actuating speed of Z axle driver element 56 is meant, the speed that nozzle 53 moves up or down by Z axle driver element 56 when control module operation Z axle driver element 56.
In order to calculate the actuating speed of Z axle driver element 56 at each part, at first place the height of the upper surface of the substrate S on the saddle 20 at each part measurement at step S31 and S41 according to the upper surface variation in height of substrate S.
After the height of the upper surface of having measured substrate S, control module calculates the height change value of upper surface of substrate S and/or the height change gradient of each part based on the data relevant with the height of the upper surface of substrate S.By variation in height compares to various piece, determine to have the part (for example CD part of Fig. 3) of greatest gradient.And then, calculate the optimal drive speed of Z axle driver element 56 at step S32, with as above-mentioned determined gradient the best part corresponding.
Z axle driver element 56 brings the driving force of predetermined actuating speed vertically by control module control with generation.Nozzle 53 moves vertically by the vertical driving force of Z axle driver element 56.Z axle driver element 56 vertically driving force and actuating speed and to put on the current strength of Z axle driver element 56 proportional.Along with the increase of the current strength that puts on Z axle driver element 56, it is big that the driving force of Z axle driver element 56 and actuating speed become.And along with the current strength that puts on Z axle driver element 56 reduces, the driving force and the actuating speed of Z axle driver element 56 diminish.
If the speed of moving horizontally of nozzle 53 is that the horizontal coating speed of nozzle 53 is constant, then the actuating speed of Z axle driver element 56 is big more, and is just short more in order to the time interval that the vertical position of adjusting nozzle 53 is required.The height change gradient the best part of the upper surface of substrate S is compared with other parts, must adjust the vertical position of nozzle 53 in having the part of greatest gradient more apace.Therefore, preferably on gradient shows height at the upper surface of substrate S, have in the maximum part that changes, make the actuating speed maximum of Z axle driver element 56.
If the actuating speed of Z axle driver element 56 is set to ideally big as much as possible, then the vertical position of nozzle 53 can be adjusted into best upper surface variation in height corresponding to substrate S.But,, then may undesirably increase vibrations by the operation generation of Z axle driver element 56 if the actuating speed of Z axle driver element 56 is excessive.
Therefore, can be appointed as the maximum drive speed of Z axle driver element 56 with the actuating speed of the corresponding Z axle of the height change gradient the best part driver element 56 of the upper surface of substrate S, and preferably control the driving of Z axle driver element 56 at step S33 with maximum drive speed.
In the case, to substrate S coating fluid sealant the time, can control Z axle driver element 56 equably with above-mentioned maximum drive speed in the whole coated portion of substrate S.Like this, no matter in the little part of height change gradient still in the big part of height change gradient, can according to the upper surface of substrate S in height variation and adjust the vertical position of nozzle 53 best.Thus, when distance between substrate S and the nozzle 53 is consistent, can be to substrate S coating fluid sealant.
Simultaneously, under the situation with maximum drive speed control Z axle driver element 56, it is suitable for height change gradient the best part.But described maximum drive speed is than big for the best actuating speed of the little part of height change gradient.Therefore, in the little part of height change gradient, needn't control the driving of Z axle driver element 56 with above-mentioned maximum drive speed.
Preferably, as shown in Figure 7, step S42 according to be the height change value (or height change gradient) of upper surface of the measured substrate S of each part at the actuating speed of each part calculating Z axle driver element 56, and utilize described actuating speed to control the driving of the Z axle driver element 56 of each coated portion at step S43.
Therefore, in substrate S coating fluid sealant, can control Z axle driver element 56 with actuating speed at each part of substrate S.Just, the part that the part that the height change value of the upper surface of substrate S (or height change gradient) is big (for example CD part of Fig. 3) is little with the height change value (or height change gradient) of the upper surface of substrate S (for example AB part of Fig. 3) is when comparing, in the big part of height change value, control Z axle driver element 56, and in the little part of height change value, control Z axle driver element 56 with less actuating speed with bigger actuating speed.
Like this, because can be according to the upper surface variation in height of the substrate S actuating speed at each part control Z axle driver element 56, therefore the whole coated portion at substrate S can make the distance between substrate S and the nozzle 53 be consistent.
The upper surface variation in height that places the substrate S on the saddle 20 at each part measurement according to the method for the control fluid sealant coating machine of second embodiment of the invention, and utilize measured value to control the actuating speed of Z axle driver element 56, thus according to the upper surface of substrate S in height variation and control the vertical position of nozzle 53 best, thereby in whole fluid sealant coating operation, the distance between substrate S and the nozzle 53 is consistent.
Technology purport of the present invention can be implemented independently, also can be bonded to each other.Just, as the method for controlling the fluid sealant coating machine according to another embodiment of the present invention, can adopt according to the upper surface variation in height of substrate S and control the drive cycle of Z axle driver element 56 and the method for actuating speed simultaneously.
As mentioned above, the invention provides a kind of method of controlling the fluid sealant coating machine, described method measurement places the upper surface variation in height of the substrate on the saddle, and utilize measured value to control the drive cycle of Z axle driver element, control the vertical position of nozzle thus according to the upper surface variation in height of substrate S best, thereby in whole fluid sealant coating operation, the distance between substrate and the nozzle is consistent.
In addition, the invention provides a kind of method of controlling the fluid sealant coating machine, described method measurement places the upper surface variation in height of the substrate on the saddle, and utilize measured value to control the actuating speed of Z axle driver element, control the vertical position of nozzle thus according to the upper surface variation in height of substrate S best, thereby in whole fluid sealant coating operation, the distance between substrate and the nozzle is consistent.
Claims (7)
1. method of controlling the fluid sealant coating machine, described fluid sealant coating machine comprises: nozzle, described nozzle is to placing the substrate on the saddle to discharge fluid sealant; And coating head unit, described coating head unit has the Z axle driver element of the vertical position of adjusting described nozzle, and described method comprises:
(a) measure the upper surface variation in height that places the described substrate on the saddle; And
(b) utilization is controlled the driving of described Z axle driver element in the upper surface variation in height of (a) measured described substrate.
2. method according to claim 1, wherein, described (b) comprises the drive cycle of controlling described Z axle driver element.
3. method according to claim 2, wherein, described (b) comprising:
The minimum drive cycle of calculating and the corresponding described Z axle driver element of gradient the best part, described gradient illustrates the upper surface variation in height of described substrate; And
Control the driving of described Z axle driver element with described minimum drive cycle.
4. method according to claim 2, wherein, described (b) comprising:
According to the upper surface variation in height of described substrate, calculate the drive cycle of described Z axle driver element at each part of coating fluid sealant; And
Utilize the drive cycle of each part to control the driving of described Z axle driver element.
5. method according to claim 1 and 2, wherein, described (b) comprises the described Z axle driver element of control actuating speed vertically.
6. method according to claim 5, wherein, described (b) comprising:
The maximum drive speed of calculating and the corresponding described Z axle driver element of gradient the best part, described gradient illustrates the upper surface variation in height of described substrate; And
Control the driving of described Z axle driver element with described maximum drive speed.
7. method according to claim 5, wherein, described (b) comprising:
According to the upper surface variation in height of described substrate, calculate the actuating speed of described Z axle driver element at each part of coating fluid sealant; And
Control the driving of described Z axle driver element with the actuating speed of each part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090120656A KR101110018B1 (en) | 2009-12-07 | 2009-12-07 | Method for controlling paste dispenser |
| KR10-2009-0120656 | 2009-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102085505A true CN102085505A (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105607421A Pending CN102085505A (en) | 2009-12-07 | 2010-11-26 | Method for controlling sealant coater |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101110018B1 (en) |
| CN (1) | CN102085505A (en) |
| TW (1) | TW201138986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016106798A1 (en) * | 2014-12-29 | 2016-07-07 | 深圳市华星光电技术有限公司 | Photoresist coating apparatus and photoresist coating method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI593463B (en) * | 2014-05-07 | 2017-08-01 | 技鼎股份有限公司 | A dispensing equipment with glue amount adjustment |
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| KR100609666B1 (en) | 2006-04-04 | 2006-08-08 | 주식회사 탑 엔지니어링 | Paste dispensing apparatus and method for controlling the same |
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- 2009-12-07 KR KR1020090120656A patent/KR101110018B1/en active IP Right Grant
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- 2010-12-01 TW TW099141688A patent/TW201138986A/en unknown
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| JP2000244107A (en) * | 1999-02-24 | 2000-09-08 | Nec Corp | Dispenser equipped with discharge control function and method of applying cream solder |
| JP2004153005A (en) * | 2002-10-30 | 2004-05-27 | Matsushita Electric Ind Co Ltd | Resist pattern forming method and solar cell manufacturing method using the same, and resist pattern forming apparatus |
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| WO2016106798A1 (en) * | 2014-12-29 | 2016-07-07 | 深圳市华星光电技术有限公司 | Photoresist coating apparatus and photoresist coating method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101110018B1 (en) | 2012-02-29 |
| KR20110064170A (en) | 2011-06-15 |
| TW201138986A (en) | 2011-11-16 |
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Application publication date: 20110608 |