CN104914597B - For preventing the method and equipment of the liquid condensation in distributor - Google Patents
For preventing the method and equipment of the liquid condensation in distributor Download PDFInfo
- Publication number
- CN104914597B CN104914597B CN201510106594.9A CN201510106594A CN104914597B CN 104914597 B CN104914597 B CN 104914597B CN 201510106594 A CN201510106594 A CN 201510106594A CN 104914597 B CN104914597 B CN 104914597B
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- pressure
- negative pressure
- supply pipe
- valve
- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 130
- 238000009833 condensation Methods 0.000 title claims abstract description 65
- 230000005494 condensation Effects 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000002265 prevention Effects 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims description 20
- 238000005054 agglomeration Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract description 40
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 10
- 238000011017 operating method Methods 0.000 abstract description 2
- 239000006072 paste Substances 0.000 description 61
- 235000015110 jellies Nutrition 0.000 description 16
- 239000008274 jelly Substances 0.000 description 16
- 239000011261 inert gas Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/101—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to weight of a container for liquid or other fluent material; responsive to level of liquid or other fluent material in a container
-
- 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
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
-
- 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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Coating Apparatus (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The equipment and a kind of method for preventing the liquid condensation in distributor that the present invention relates to a kind of for preventing the liquid condensation in distributor, and more particularly, it is related to a kind of equipment for preventing the liquid condensation at the tip of nozzle when the liquid of such as liquid crystal and paste is coated to substrate and its a kind of operating method.According to an exemplary embodiment of the invention, a kind of method for preventing the liquid condensation in distributor includes: by will discharge the nozzle discharge liquid for passing through syringe and supply pressure provides the pressure supply pipe for being connected to syringe by positive pressure form；When the discharge of liquid stops, the discharge of liquid is prevented by preventing pressure from providing pressure supply pipe discharge by the first negative pressure form；And the liquid condensation in nozzle is prevented by preventing the discharge of liquid and then will prevent the pressure from providing pressure supply pipe for the liquid condensation of the second negative pressure less than discharge prevention pressure.
Description
Technical field
The equipment and one kind that the present invention relates to a kind of for preventing the liquid condensation in distributor are for preventing in distributor
The method of liquid condensation and be more particularly related to a kind of for when the liquid of such as liquid crystal or paste is coated to lining
The equipment and operating method of the liquid condensation at the tip of nozzle are prevented when bottom.
Background technique
Liquid crystal display (liquid crystal display；It LCD) is to manufacture by the following method: for single
Multiple pattern of pixels are formed on substrate, form color filter layers on another substrate corresponding thereto, in conjunction with two glass lineds
Bottom, and then injected liquid crystal into space by preordering method, the space is two substrates and inner sealing by combining
Dosage form at.
For paste to be discharged into during the manufacture of foregoing liquid crystal display by predetermined pattern the operation of glass substrate
It is carried out by the equipment for discharging paste.
A kind of exhaust apparatus for paste to be discharged into flat substrate includes: platform, upper substrate and lower substrate
It is located thereon；Distributor, the lining being emitted into it includes the syringe filled with raw material (paste) and by paste on platform
The nozzle at bottom；Sensor measures the gap between substrate and nozzle；Driver increases distributor；Transfer part, water
Move distributor in level land；And controller, control the operation of distributor.
In order to use exhaust apparatus to form pattern in the substrate, firstly, using between sensor measurement substrate and nozzle
Gap.In addition, controlling the gap between substrate and nozzle by vertically moving up and down distributor.Next, by from
Distributor is moved when nozzle discharge raw material to form desired jelly pattern.
For example, jelly pattern 20 has such as when jelly pattern is formed in the edge for the substrate of single panel
Shape illustrated in fig. 1.As illustrated in Figure 1, jelly pattern 20 has and seals in substrate 10 from the edge of substrate 10
The shape of the heart.Herein, jelly pattern 20 by be located at substrate 10 edge rather than the straight part 23 of each corner formed, it is described
Straight part has uniform width and height.In addition, bending section of the jelly pattern 20 by each corner positioned at substrate 10
Divide 22 to be formed, run through jelly pattern 20, the bending part has uniform width and height.
Therefore, paste is from the discharge of starting point 21 as origin, and then arrives at the end before starting point 21
Point 24, around straight part 23 and bending part 22 to form jelly pattern 20.
However, needing to be used to form the waiting time of next jelly pattern after discharging jelly pattern.This
When, liquid condensation (drop) occurs at the tip of nozzle.Liquid condensation is the former material because at the lower end of nozzle
Expect the pressure that the scallop-height of reason syringe generates and coalesces.Therefore, liquid condensation phenomenon occurred after past waiting time,
Viscosity without considering raw material.
It is attributed to liquid condensation phenomenon, unexpectedly discharges big content of starting materials in the starting point of next jelly pattern, so that
The height of pattern on the whole may be uneven.
Liquid condensation in order to prevent using the method for residual pressure to be maintained to fixed value or is used to allow nozzle
Other surfaces of nib contacts substrate are to prevent method of the liquid from nozzle discharge.However, solid for maintaining residual pressure
The method of definite value has the problem that the amount for depending on the liquid used, and liquid condensation may still will appear, and on the contrary, liquid
Body can be inhaled into nozzle.For allowing the method on the surface of the nib contacts substrate of nozzle to have the problem that nozzle
Surrounding may be contaminated and nozzle may be damaged.
[related technical literature]
[patent document]
(patent document 1) Korea Patent Laid publication the 10-2013-0007134th
Summary of the invention
This disclosure provides a kind of equipment for preventing the liquid condensation in the nozzle for the syringe of distributor
And method.In addition, this disclosure prevents the liquid after having discharged liquid to be inhaled into the nozzle for the syringe of distributor.
This disclosure provides contaminated device and method around a kind of nozzle for preventing syringe.
According to an exemplary embodiment of the invention, a kind of method for preventing the liquid condensation in distributor includes: logical
It crosses and provides discharge supply pressure to the pressure supply pipe for being connected to syringe and the nozzle discharge liquid for passing through syringe by positive pressure form
Body；By preventing pressure from providing pressure supply pipe discharge by the first negative pressure form it is desirable that preventing discharge liquid
To prevent the discharge of liquid；And by preventing the discharge of liquid and will be then second negative pressure less than discharge prevention pressure
Liquid condensation protection pressure, which is provided to pressure supply pipe, prevents the liquid condensation in nozzle.
The discharge of liquid may include providing positive pressure to pressure supply pipe as discharge supply pressure, by the way that turn off will be big
Atmospheric pressure provides the atmospheric pressure valve to pressure supply pipe, the first negative pressure is provided to the first negative pressure valve of pressure supply pipe
With will provide the second negative pressure valve of pressure supply pipe for the second negative pressure of the pressure less than the first negative pressure, and open and will preset
Fixed positive pressure provides the positive pressure valve to pressure supply pipe.
The prevention of the discharge of liquid may include by turning off positive pressure valve, the second negative pressure valve, atmospheric pressure valve and only
It opens the first negative pressure valve and provides the first negative pressure to pressure supply pipe as discharge prevention pressure.
The prevention of the discharge of liquid may include providing the first negative pressure to pressure supply pipe as discharge to prevent pressure, lead to
It crosses by turning off positive pressure valve, the first negative pressure valve and the second negative pressure valve and only opening atmospheric pressure valve goalkeeper pressure supply pipe
It is transformed into atmosphere pressure state, and then only opens the first negative pressure valve.
Liquid condensation in nozzle prevents from may include by turning off positive pressure valve, atmospheric pressure valve and the first negative pressure valve
It door and only opens the second negative pressure valve and provides the second negative pressure to pressure supply pipe as liquid condensation and prevent pressure.
Liquid condensation in nozzle prevents from may include by turning off atmospheric pressure valve and the second negative pressure valve and only beating
It opens positive pressure valve and the first negative pressure valve and provides the differential pressure between positive pressure and the first negative pressure to pressure supply pipe as liquid
Body agglomeration preventing pressure.
Second negative pressure is smaller than the first negative pressure.First negative pressure can range from -20Kpa to -10Kpa, and the second negative pressure can model
It encloses from -3Kpa to -1Kpa.
According to another exemplary embodiment of the present invention, a kind of for preventing the equipment packet of the liquid condensation in distributor
Contain: positive pressure valve is configured to provide presetting positive pressure to pressure supply pipe；Atmospheric pressure valve, is configured to
There is provided atmospheric pressure to pressure supply pipe；First negative pressure valve is configured to provide the first negative pressure to pressure supply pipe；
Second negative pressure valve is configured to that pressure supply pipe will be provided less than the second negative pressure of the first negative pressure；Pressure supply pipe,
It is configured to that positive pressure valve, atmospheric pressure valve, the first negative pressure valve and the second negative pressure valve is allowed to be connected to syringe as one
Supply pipe；And opening and closing controller, it is configured to turn off positive pressure valve, the when preventing liquid from discharging from syringe
Two negative pressure valves and atmospheric pressure valve and only open the first negative pressure valve in the form of by the first negative pressure will discharge prevent pressure mention
It is supplied to pressure supply pipe, and then turns off positive pressure valve, atmospheric pressure valve and the first negative pressure valve and opens the second negative pressure valve
Door prevents pressure to provide the second negative pressure to pressure supply pipe as liquid condensation.
Another exemplary embodiment according to the present invention, a kind of equipment of the liquid condensation for preventing distributor include:
Positive pressure valve is configured to provide presetting positive pressure to pressure supply pipe；Atmospheric pressure valve, being configured to will be big
Atmospheric pressure is provided to pressure supply pipe；First negative pressure valve is configured to provide the first negative pressure to pressure supply pipe；Second
Negative pressure valve is configured to that pressure supply pipe will be provided less than the second negative pressure of the first negative pressure；Pressure supply pipe, through matching
It sets to allow positive pressure valve, atmospheric pressure valve, the first negative pressure valve and the second negative pressure valve to be connected to syringe as one and supplies
Pipe；And controller is opened and closed, it is configured to when preventing liquid from discharging from syringe, turns off positive pressure valve, second negative
Pressure valve and atmospheric pressure valve and only open the first negative pressure valve in the form of by the first negative pressure will discharge prevent pressure provide
Pressure supply pipe, and then turn off atmospheric pressure valve and the second negative pressure valve and open positive pressure valve and the first negative pressure valve with
The differential pressure between positive pressure and the first negative pressure is provided to pressure supply pipe as liquid condensation prevents pressure.
The equipment can further include: pressure-sensing sensor, be configured to check the pressure of pressure supply pipe；With
And residual volume sensing sensor, it is configured to sense that the residual volume of the liquid of syringe.
The pressure-sensing sensor in atmosphere pressure state can be used in liquid after discharging by opening and closing controller
It checks the pressure of pressure supply pipe, and checks the residual volume of liquid to depend on pressure supply pipe using residual volume sensing sensor
Pressure and the residual volume of liquid prevent pressure and liquid condensation from preventing pressure control to desired pressure discharge.
It according to an exemplary embodiment of the invention, can be by preventing the liquid condensation in the nozzle for the syringe of distributor
Minimize the pollution around nozzle.Accordingly, it is possible to resolve the inconvenience of nozzle cleaning operation.In addition, according to the present invention
Exemplary embodiment can drain back into Ying Su by preventing liquid to be inhaled into the nozzle of syringe when improving discharge next time
Degree.
Detailed description of the invention
Fig. 1 is to illustrate that jelly pattern is formed in the figure of the appearance of the edge on the surface for single panel.
Fig. 2 is the perspective view for discharging the equipment of paste.
Fig. 3 is the equipment for preventing the cohesion in the nozzle of syringe illustrated according to an exemplary embodiment of the invention
Figure.
Fig. 4 is the process for illustrating the process for preventing the liquid condensation in distributor according to an exemplary embodiment of the invention
Figure.
Specific embodiment
Exemplary embodiment of the present invention hereafter will be described in detail with reference to the accompanying drawings.However, the present invention is limited to hereafter to be taken off
The exemplary embodiment shown, but can implement in various different formats.These exemplary embodiments will be provided only to make the present invention
Disclosure it is complete, and allow those skilled in the art be fully recognized that the scope of the present invention.Component on attached drawing can
Amplified to describe the present invention, and same components will be indicated by same reference numbers.
Fig. 2 is the perspective view for discharging the equipment of paste.
Hereafter, although the equipment for (for example) being used to discharge paste is described as the example of distributor by the present invention, show and
It is clear to, other than the equipment for discharging paste, it is also possible to apply the invention to the equipment for discharging various liquid, for example,
Equipment for discharging liquid crystal.Herein, the example of liquid may include the liquid (for example, water) with low-viscosity, have high stick
The liquid (for example, liquid crystal, colloidal sol, various mixing liquids, slurry and paste) and liquid mixture of degree.
Exhaust apparatus includes that substrate is located platform 30 thereon and comprising syringe according to an exemplary embodiment of the invention
100 distributor, the syringe 100 have nozzle 110, will be discharged into platform by the nozzle 110 for the paste of raw material
Substrate 10 on 30 is to form jelly pattern 20.
Substrate S can be any of upper substrate and lower substrate used in liquid crystal display panel.In this situation
Under, although not illustrating in upper substrate, (for example) colored filter and common electrode is formed in upper substrate, and (example
Such as) thin film transistor (TFT) and pixel electrode are formed in lower substrate.In addition, when by combining upper substrate to be formed with lower substrate
When liquid crystal display panel, multiple pattern Ps made of metal paste can be formed in any in upper substrate and lower substrate
To be conducted between upper substrate and lower substrate on a.It according to an exemplary embodiment of the invention, will (for example) silver-colored (Ag) paste
Shape object, which is used as, to be stored in the syringe 100 for distributor and is discharged into the paste in substrate S.
Syringe 100 is moved by buanch unit in X-axis and Y direction to form pattern P in substrate S.In this situation
Under, platform 30 and syringe 100 are mobile (driving moves) for example, by the driving device of motor and track.Certainly, it can be used and remove
Various devices except this.Multiple syringes 100 can be mobile by single driving device (driving moves).Herein, driving unit can
It is controlled by single buanch unit to drive all syringes 100 simultaneously.
The foregoing describe syringes 100 the case where moving horizontally in X-axis and Y direction.However, the present invention is not limited to
This, and therefore platform 30 can move in X-axis and Y direction paste is discharged into substrate 10.In addition, platform 30 and needle
Cylinder both 100 can be all moved in X-axis and Y direction to discharge paste, and platform 30 moved on an axis direction and
Syringe 100 can move on another axis direction to discharge the paste for liquid.
Though undeclared, distributor includes range sensor (undeclared).Range sensor is installed between nozzle 110
It separates to measure the gap between nozzle 110 and substrate 10.Range sensor is configured with the luminous list for emitting light towards substrate 10
First (undeclared) and receive the light receiving unit (undeclared) from the light of (undeclared) transmitting of luminescence unit.In the case, it sends out
Light unit (undeclared) and light receiving unit (undeclared) are configured as one, and may be disposed with the pre- spacing that is spaced from each other
From.In addition, syringe 100 based on the measured value measured by range sensor raising and lowering, and therefore can by substrate 10 and spray
Gap control between mouth 110 is (for example) 40 μm.
However, needing to form the waiting time of next jelly pattern after discharging jelly pattern.At this point, liquid
Body agglomerates (drop) and occurs at the tip of nozzle.Liquid condensation is the paste reason because at the lower end of nozzle
Pressure that the scallop-heights of raw material in syringe 100 generates and coalesce.
In order to prevent in the liquid condensation of the end of nozzle, exemplary embodiment of the invention check in syringe 100
The residual volume of remaining paste after the discharge of paste, and perform control to the inside that syringe 100 is maintained for each step
Thus pressure prevents the liquid condensation for being attributed to the residual volume of paste.This will be described referring to Fig. 3.
Fig. 3 is setting for the liquid condensation in the nozzle for preventing syringe illustrated according to an exemplary embodiment of the invention
Standby figure.
The syringe 100 that will be filled with paste is installed to the head unit (undeclared) of configuration distributor, and by nozzle 110
It is mounted under syringe 100.It is externally discharged that the paste in syringe 100 will be filled in by nozzle 110, and therefore platform 30
On substrate 10 be formed with jelly pattern.The residual volume sensing sensor 420 of the residual volume of liquid in sensing syringe can connect
It is connected to syringe 100.
For prevent the liquid condensation in distributor equipment include valve module 200, opened and closed with
In determining whether in syringe 100 and pressure will be provided in pressure supply pipe 500 that valve module 200 is connected to syringe 100.Valve
Module 200 includes: positive pressure valve 240 provides presetting positive pressure to pressure supply pipe 500；Atmospheric pressure valve 230,
It provides atmospheric pressure to pressure supply pipe 500；First negative pressure valve 210, provides the first negative pressure to pressure supply pipe
500；With the second negative pressure valve 220, the second negative pressure is provided to pressure supply pipe 500.
Positive pressure valve 240 is opened and closed to be used to determine whether under the setting pressure in positive (+) pressure pattern
By the inert gas provided from positive pressure supply module 330 (for example, Ar, N2Gas) it provides and arrives pressure supply pipe 500.When open just
When pressure valve 240, the inert gas of positive pressure is provided to pressure supply pipe 500, and when turning off positive pressure valve 240, will not lead to
The positive pressure for crossing positive pressure valve 240 is provided to pressure supply pipe 500.Positive (+) pressure is presetting pressure and is supplied by positive pressure
Module 330 provides.In the case, positive pressure meaning is equal to or more than the pressure of any reference or normal pressure.For example, when referring to
When pressure is zero (0), positive pressure meaning is equal to or more than zero pressure.Positive pressure supply module 330 may include compression generator 331,
Increase pressure compressor 332 and proportional pressure control valve 333.When compression generator 331 generates predetermined pressure with by inert gas
When raising pressure compressor 332 is provided, pressure compressor 332 is increased by inert gas, proportional pressure control valve 333 is provided,
To which the pressure of inert gas is increased to 1MPa, and proportional control valve 333 will be increased to the inert gas control of 1MPa to set
Fixed positive pressure (for example, about 0 to 10Kpa) and the inert gas that will be controlled by the entrance to positive pressure valve 240 is provided.
Atmospheric pressure valve 230 is opened and closed to be used to determine whether to provide atmospheric pressure into pressure supply pipe
500.When opening atmospheric pressure valve 230, pressure supply pipe 500 is maintained under outside atmospheric pressure, and works as and turns off atmosphere
When pressure valve 230, outside atmosphere pressure is not provided to pressure supply pipe 500.
First negative pressure valve 210 is opened and closed to be used to determine whether the first negative pressure from the first negative voltage supply mould
Block 310, which provides, arrives pressure supply pipe 500.When opening the first negative pressure valve 210, the first negative pressure is provided to pressure supply pipe
500, and when turning off the first negative pressure valve 210, pressure supply will not be provided by the first negative pressure of the first negative pressure valve 210
Pipe 500.First negative (-) pressure has the first negative pressure value of setting.In the case, negative pressure meaning is less than any reference or normal
The pressure of pressure.For example, negative pressure means minus pressure, that is, negative pressure when normal pressure is zero (0).Pass through the first negative pressure
Supply module 310 provides the first negative pressure.First negative voltage supply module 310 may include that the first vacuum pump 311 and the first accuracy are true
Air conditioner 312.When the first vacuum pump 311 generates the first negative pressure, it is institute that accuracy vacuum governor 312, which controls the first negative pressure,
The first negative value (for example, first negative pressure that -20Kpa arrives -10Kpa) wanted, and the first negative pressure offer that will be controlled by is negative to first
The entrance of pressure valve 210.
Second negative pressure valve 220 is opened and closed so that be used to determine whether will be for less than from the first negative pressure valve 210
Second negative pressure of the tiny structure of the first negative pressure provided is provided from the second negative voltage supply module 320 to pressure supply pipe 500.When beating
When opening the second negative pressure valve 220, the second negative pressure is provided to pressure supply pipe 500, and when turning off the second negative pressure valve 220,
Pressure supply pipe 500 will not be provided by the second negative pressure of the second negative pressure valve 220.Second negative pressure has second set negative
Pressure value and by the second negative voltage supply module 320 provide.In the case, the second negative pressure is and the first negative pressure phase described above
The pressure of ratio, and it is less than the first negative pressure as negative value.That is, absolute value of the absolute value of the second negative pressure less than the first negative pressure.Cause
This is under the power for being applied to object in negative direction that the second negative pressure is even more weak such as compared with the first negative pressure.Second negative pressure supplies
Answering module 320 may include the second vacuum pump 321 and the second accuracy vacuum governor 322.When the second vacuum pump 321 generates negative pressure
When, the second accuracy vacuum governor 322 be produced as the pressure less than the first negative pressure the second negative pressure (for example, for tiny structure-
The second negative pressure of 3Kpa to -1Kpa) and provide the second negative pressure of generation to the entrance to the second negative pressure valve 220.In order to refer to,
Positive pressure valve 240, atmospheric pressure valve 230, the first negative pressure valve 210 and the second negative pressure valve 220 can be embodied as to electromagnetism electricity
Sub- valve.
Pressure supply pipe 500 is positive pressure valve 240, atmospheric pressure valve 230, the first negative pressure valve 210 and the first negative pressure
Valve 220 is connected to the supply pipe to be passed through as a supply pipe with syringe 100.Therefore, the pressure in pressure supply pipe 500
Depending on positive pressure valve 240, atmospheric pressure valve 230, the first negative pressure valve 210 and the first negative pressure valve 220 whether each
It is opened and changes, and therefore influence the pressure at expulsion for the paste being connected in the syringe 100 of pressure supply pipe 500.Therefore,
Pressure in pressure supply pipe 500 is equal to the pressure for the paste being applied in syringe 100.In addition, can further provide for sensing
The pressure-sensing sensor 410 of pressure in pressure supply pipe 500.
Controller 600 is opened and closed to supply the pressure that syringe 100 is provided in the discharge supply pressure of positive pressure form
Pipe 500 to control positive pressure valve 240, atmospheric pressure valve 230, the first negative pressure valve 210 and the first negative pressure valve 220 respectively,
Liquid is discharged will pass through the nozzle 110 of syringe 100.That is, being opened it is desirable that discharging paste by syringe 100
Turn off atmospheric pressure valve 230, the first negative pressure valve 210 and the second negative pressure valve 220 with closing controller 600 and only opens just
Pressure valve 240 is will be in that discharge supply pressure in the form of positive pressure provides pressure supply pipe 500.
In addition, open and close controller 600 by following two method control with for prevent the discharge of paste so as to
It prevents paste to be inhaled into the inside of nozzle, while paste being prevented to be discharged.
For preventing paste to be inhaled into nozzle while the first method for preventing paste to be discharged is first switched off just
Pressure valve 240, the second negative pressure valve 220, atmospheric pressure valve 230 and the first negative pressure valve 210 is only opened by the first negative pressure
Discharge is prevented pressure from providing pressure supply pipe 500 by form, thus liquid is prevented to be discharged.In order to prevent to pass through nozzle discharge
Paste, only open the first negative pressure valve 210 with the first negative pressure by range from -20Kpa to -10Kpa provide to pressure supply
Should pipe 500, as discharge prevent pressure.Next, the liquid condensation in nozzle in order to prevent, turns off positive pressure valve 240, atmosphere
Pressure valve 230 and the first negative pressure valve 210 and only open the second negative pressure valve 220 with by the second negative pressure provide pressure supply
Pipe 500 prevents the liquid condensation of pressure from preventing pressure as discharge is less than.The second negative pressure valve 220 is opened that will be micro-pressure
Second negative pressure of the range from -3Kpa to -1Kpa provide to pressure supply pipe 500 and to prevent pressure as liquid condensation to prevent from pasting
Shape object is sucked into nozzle, while preventing from discharging for the paste of liquid from the nozzle 110 of syringe 100.
In addition, the second method in nozzle while paste being prevented to be discharged for preventing paste to be inhaled into is closed first
Fall positive pressure valve 240, the second negative pressure valve 220, atmospheric pressure valve 230 and only opens the first negative pressure valve 210 by first
Discharge is prevented pressure from providing pressure supply pipe 500 by negative pressure form, thus liquid is prevented to be discharged.Next, turning off atmosphere
Pressure valve 230 and the second negative pressure valve 220 and positive pressure valve 240 and the first negative pressure valve 210 are opened with by positive pressure and first
Differential pressure between negative pressure is provided to pressure supply pipe 500, prevents the liquid condensation of pressure from preventing pressure as discharge is less than.Just
Differential pressure between pressure and the first negative pressure results from pressure supply pipe 500.For example, being produced as by the way that -20Kpa is arrived -10Kpa
The first negative pressure be added to 0Kpa to 17Kpa positive pressure obtain differential pressure -3Kpa Dao -1Kpa pressure, can be maintained at
In pressure supply pipe 500, pressure is prevented as liquid condensation.In the case where first method, need to turn the first negative pressure state
It changes the second negative pressure into, and therefore, responds relatively lower speed.On the other hand, such as second method, the discharge of liquid stop and then
Addition positive pressure prevents pressure to be used as between positive pressure and the first negative pressure and differential pressure to provide liquid condensation immediately, thus makes to prevent paste
The response speed of the discharge of shape object becomes faster.
Meanwhile it opening and closing the controllable discharge of controller 600 and pressure and liquid condensation is prevented to prevent pressure.In relief liquor
In atmosphere pressure state after body, controller 600 is opened and closed using pressure-sensing sensor 410 and calculates pressure supply pipe
500 pressure, and the residual volume of the paste (liquid) in syringe is calculated using residual volume sensing sensor 420 to depend on pressure
Discharge is prevented pressure and liquid condensation from preventing pressure from controlling to desired by the pressure of power supply pipe 500 and the residual volume of paste
Pressure.For example, in the atmosphere pressure state for not discharging liquid, when being to reduce by the first negative pressure inspection of pressure supply pipe 500
When, paste can be discharged, and therefore can more increase liquid condensation to prevent pressure.On the contrary, in the atmospheric pressure shape for not discharging liquid
It, can be in turn by paste when being with high first negative pressure as negative value by the pressure inspection of pressure supply pipe 500 in state
Being introduced into nozzle and therefore can more reducing liquid condensation prevents pressure.
Fig. 4 is the process for illustrating the process for preventing the liquid condensation in distributor according to an exemplary embodiment of the invention
Figure.
Execute by by positive pressure form will discharge supply pressure provide be connected to the pressure supply pipe 500 of syringe 100 come
Pass through the process (S410) of the nozzle discharge liquid of syringe 100.It is desirable that discharging liquid, turns off and mention atmospheric pressure
It is supplied to the atmospheric pressure valve 230 of pressure supply pipe 500, the first negative pressure is provided to the first negative pressure valve of pressure supply pipe 500
Door 210 and will provide the second negative pressure valve 220 of pressure supply pipe 500 for the second negative pressure of the pressure less than the first negative pressure,
And it only opens and provides presetting positive pressure to the positive pressure valve 240 of pressure supply pipe 500 to provide positive pressure to pressure supply
Pipe 500 is as discharge supply pressure.
It is prevented when paste in order to be applied for liquid in the nozzle by syringe 100 by preventing the discharge of paste
Liquid condensation in nozzle, firstly, by preventing pressure from providing pressure supply pipe 500 to prevent in the discharge of the first negative pressure form
The discharge (S420) of paste.Turn off positive pressure valve 240, the second negative pressure valve 220 and atmospheric pressure valve 230 and only opens
One negative pressure valve 210 prevents pressure to provide the first negative pressure to pressure supply pipe 500 as discharge.First negative pressure has range
Size from -20Kpa to -10Kpa is with the paste destroyed in syringe 100 and the paste of discharge.However, can be first carried out
Apply the process that discharge pressure state is converted into before the first negative pressure atmosphere pressure state.That is, turning off positive pressure valve 240, first
Negative pressure valve 210 and the second negative pressure valve 220 and only opening atmospheric pressure valve 230 are pressure supply pipe 500 to be converted into greatly
Atmospheric pressure state, and the first negative pressure valve 210 is then only opened, thus provide pressure supply pipe 500 conduct the first negative pressure
Discharge prevents pressure.The discharge that the pressure at expulsion of positive pressure form is converted into the first negative pressure immediately is prevented into pressure-affectable such as valve
The peripheral unit of door, and therefore can be performed and pressure at expulsion is converted into atmosphere pressure state and the then mistake of discharge prevention pressure
Journey.
After the nozzle for preventing paste from preventing syringe 100, the liquid for being provided as being less than the pressure that discharge prevents pressure is executed
The inside that body agglomeration preventing pressure prevents liquid condensation in nozzle as absolute value and paste is prevented to be introduced in nozzle
Process (S430).Even after discharge stops, when continuously offer has the first negative pressure of the size of -20Kpa to -10Kpa
When, may occur in which the problem in turn paste being introduced in nozzle.Therefore, problem above in order to prevent, in the row of paste
After putting stopping, providing the liquid condensation less than the first negative pressure prevents pressure to prevent the liquid condensation in nozzle and prevent paste
It is reversed and is introduced into nozzle.
Method for preventing paste to be inhaled into the inside of nozzle while paste being prevented to be discharged can be by following two
A method is formed.
For preventing paste to be inhaled into nozzle while the first method for preventing paste to be discharged turns off positive valve
Door 240, atmospheric pressure valve 230 and the first negative pressure valve 210 and open the second negative pressure valve 220 only to provide the second negative pressure
To pressure supply pipe 500, the liquid condensation of pressure is prevented to prevent pressure as discharge is less than.Open the second negative pressure valve 220 with
The second negative pressure for the range of micro-pressure from -3Kpa to -1Kpa, which is provided to pressure supply pipe 500, is used as liquid condensation to prevent from pressing
Power prevents from discharging for the paste of liquid from the nozzle 110 of syringe 100 to prevent paste to be sucked into nozzle.
In addition, the second method in nozzle while paste being prevented to be discharged for preventing paste to be inhaled into is turned off greatly
Atmospheric pressure valve 230 and the second negative pressure valve 220 and positive pressure valve 240 and the first negative pressure valve 210 are opened with by positive pressure and the
Differential pressure between one negative pressure is provided to pressure supply pipe 500, prevents the liquid condensation of pressure from preventing pressure as discharge is less than.
For example, positive pressure range of the use scope from 0Kpa to -17Kpa and the first negative pressure from -20Kpa to -10Kpa, and therefore generate -
The differential pressure can be provided pressure supply pipe 500 and coagulated as liquid by the pressure of 3Kpa to -1Kpa as differential pressure therebetween
It is poly- to prevent pressure.The discharge of liquid stops, and then provide positive pressure prevent pressure as positive pressure to provide liquid condensation immediately and
Thus differential pressure between first negative pressure makes the response speed for the discharge for preventing paste become faster.
The present invention is to describe referring to attached drawing and foregoing example embodiment, but it is not limited to this, and by appended right
Claim limitation.The present invention can be by those skilled in the art in the technology essence for not departing from the claims being described below
Differently change and modify in the case where mind.
Claims (12)
1. a kind of method for preventing the liquid condensation in distributor characterized by comprising
By providing the pressure supply pipe for being connected to syringe for supply pressure is discharged by positive pressure form come by the syringe
Nozzle discharge liquid；
It is described by preventing pressure from providing discharge by the first negative pressure form it is desirable that preventing to discharge the liquid
Pressure supply pipe prevents the discharge of the liquid；And
By preventing the discharge of the liquid and then will be coagulated for the liquid of the second negative pressure less than the discharge prevention pressure
It is poly- to prevent pressure offer to the pressure supply pipe to prevent the liquid condensation in the nozzle.
2. the method according to claim 1, wherein the discharge of the liquid includes to provide the positive pressure to institute
Pressure supply pipe is stated as discharge supply pressure, provides atmospheric pressure to the atmospheric pressure of the pressure supply pipe by turning off
Power valve, the first negative pressure valve that the first negative pressure is provided to the pressure supply pipe and will be for less than first negative pressure
Second negative pressure of pressure provides the second negative pressure valve to the pressure supply pipe, and opens and provide presetting positive pressure
The positive pressure valve of the pressure supply pipe.
3. according to the method described in claim 2, it is characterized in that, prevention discharge liquid includes by turning off the positive pressure
Valve, second negative pressure valve, the atmospheric pressure valve and the first negative pressure valve is only opened by first negative pressure
The pressure supply pipe is provided as the discharge and prevents pressure.
4. according to the method described in claim 3, it is characterized in that, prevention discharge liquid includes to propose first negative pressure
The pressure supply pipe is supplied to as discharge and prevents pressure, by by turning off the positive pressure valve, first negative pressure valve
It door, second negative pressure valve and only opens pressure supply pipe described in the atmospheric pressure valve goalkeeper and is transformed into atmospheric pressure shape
State then only opens first negative pressure valve.
5. according to the method described in claim 2, it is characterized in that, the liquid condensation prevented in nozzle includes by turning off
The positive pressure valve, the atmospheric pressure valve, first negative pressure valve and only open second negative pressure valve by
The second negative pressure offer prevents pressure as liquid condensation to the pressure supply pipe.
6. according to the method described in claim 2, it is characterized in that, the liquid condensation prevented in nozzle includes by turning off
The atmospheric pressure valve, second negative pressure valve and the positive pressure valve, first negative pressure valve are opened by institute
The differential pressure offer stated between positive pressure and first negative pressure prevents pressure as liquid condensation to the pressure supply pipe.
7. the method according to claim 1, wherein first range of negative pressure is from -20Kpa to -10Kpa.
8. the method according to claim 1, wherein second range of negative pressure is from -3Kpa to -1Kpa.
9. a kind of equipment for preventing the liquid condensation in distributor characterized by comprising
Positive pressure valve is configured to provide presetting positive pressure to pressure supply pipe；
Atmospheric pressure valve is configured to providing atmospheric pressure into the pressure supply pipe；
First negative pressure valve is configured to providing the first negative pressure into the pressure supply pipe；
Second negative pressure valve is configured to provide the second negative pressure for being less than first negative pressure to the pressure supply pipe；
The pressure supply pipe, is configured to allow the positive pressure valve, the atmospheric pressure valve, first negative pressure valve
And second negative pressure valve is connected to as a supply pipe with syringe；And
Controller is opened and closed, is configured to turn off the positive pressure valve, institute when preventing liquid from discharging from the syringe
Stating the second negative pressure valve, the atmospheric pressure valve and only open first negative pressure valve will row in the form of by the first negative pressure
It puts and pressure is prevented to provide to the pressure supply pipe, then turn off the positive pressure valve, the atmospheric pressure valve, described first
Negative pressure valve and opening second negative pressure valve are to provide second negative pressure to the pressure supply pipe as liquid
Agglomeration preventing pressure.
10. a kind of equipment for preventing the liquid condensation in distributor characterized by comprising
Positive pressure valve is configured to provide presetting positive pressure to pressure supply pipe；
Atmospheric pressure valve is configured to providing atmospheric pressure into the pressure supply pipe；
First negative pressure valve is configured to providing the first negative pressure into the pressure supply pipe；
Second negative pressure valve is configured to provide the second negative pressure for being less than first negative pressure to the pressure supply pipe；
The pressure supply pipe, is configured to allow the positive pressure valve, the atmospheric pressure valve, first negative pressure valve
And second negative pressure valve is connected to as a supply pipe with syringe；And
Controller is opened and closed, is configured to turn off the positive pressure valve, institute when preventing liquid from discharging from the syringe
Stating the second negative pressure valve, the atmospheric pressure valve and only open first negative pressure valve will row in the form of by the first negative pressure
It puts and pressure is prevented to provide to the pressure supply pipe, and then turn off the atmospheric pressure valve and second negative pressure valve
And the positive pressure valve and first negative pressure valve are opened with by the differential pressure between the positive pressure and first negative pressure
The pressure supply pipe, which is provided, as liquid condensation prevents pressure.
11. equipment according to claim 9 or 10, it is characterised in that further comprise:
Pressure-sensing sensor is configured to check the pressure of the pressure supply pipe；And
Residual volume sensing sensor is configured to sense that the residual volume of the liquid of the syringe.
12. equipment according to claim 11, which is characterized in that the opening and closing controller is in liquid after discharging
It is checked described in the pressure and use of the pressure supply pipe using the pressure-sensing sensor in atmosphere pressure state
Residual volume sensing sensor checks the residual volume of liquid, to incite somebody to action based on the residual volume of the pressure of the pressure supply pipe and liquid
Discharge prevents pressure and liquid condensation from preventing pressure control to desired pressure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0028723 | 2014-03-12 | ||
| KR1020140028723A KR101597236B1 (en) | 2014-03-12 | 2014-03-12 | Apparatus for protecting dispenser condensation and method for operating the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104914597A CN104914597A (en) | 2015-09-16 |
| CN104914597B true CN104914597B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106594.9A Expired - Fee Related CN104914597B (en) | 2014-03-12 | 2015-03-11 | For preventing the method and equipment of the liquid condensation in distributor |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101597236B1 (en) |
| CN (1) | CN104914597B (en) |
| TW (1) | TWI660792B (en) |
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| US10401246B2 (en) * | 2017-05-31 | 2019-09-03 | Oerlikon Metco (Us) Inc. | Powder feed control system and method |
| KR102153183B1 (en) * | 2018-11-23 | 2020-09-07 | 김정선 | pressure controller for meniscus pressure of ink-jet nozzle |
| KR102490968B1 (en) * | 2020-11-19 | 2023-01-26 | 김숭현 | dispenser capable of precisely controlling meniscus of syringe |
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| CN1550829A (en) * | 2003-05-09 | 2004-12-01 | Lg.菲利浦Lcd株式会社 | Liquid crystal distributing system and method for distributing liquid crystal material using said system |
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| KR20090035420A (en) * | 2007-10-05 | 2009-04-09 | 가부시키가이샤 니혼 마이크로닉스 | Method for repairing faulty circuit of liquid crystal display device and apparatus therefor |
| CN102078846A (en) * | 2009-11-27 | 2011-06-01 | Ap系统股份有限公司 | Dispenser apparatus and method of controlling the same |
| JP2012116143A (en) * | 2010-12-02 | 2012-06-21 | Seiko Epson Corp | Cleaning device, liquid jet apparatus and cleaning method |
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| JPH08141464A (en) * | 1994-11-17 | 1996-06-04 | Hitachi Techno Eng Co Ltd | Paste applying machine |
| US6464346B2 (en) * | 1999-10-29 | 2002-10-15 | Hewlett-Packard Company | Ink containment and delivery techniques |
| KR101288990B1 (en) | 2011-06-29 | 2013-07-23 | 에이피시스템 주식회사 | Apparatus for protecting dispenser condensation and method for operating the same |
| KR101911701B1 (en) * | 2011-12-28 | 2018-10-26 | 주식회사 탑 엔지니어링 | Paste dispenser and method for controlling the same |
-
2014
- 2014-03-12 KR KR1020140028723A patent/KR101597236B1/en active IP Right Grant
-
2015
- 2015-03-11 CN CN201510106594.9A patent/CN104914597B/en not_active Expired - Fee Related
- 2015-03-12 TW TW104107832A patent/TWI660792B/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1550829A (en) * | 2003-05-09 | 2004-12-01 | Lg.菲利浦Lcd株式会社 | Liquid crystal distributing system and method for distributing liquid crystal material using said system |
| CN101135814A (en) * | 2006-10-27 | 2008-03-05 | 塔工程有限公司 | Dispensing apparatus |
| KR20090035420A (en) * | 2007-10-05 | 2009-04-09 | 가부시키가이샤 니혼 마이크로닉스 | Method for repairing faulty circuit of liquid crystal display device and apparatus therefor |
| CN102078846A (en) * | 2009-11-27 | 2011-06-01 | Ap系统股份有限公司 | Dispenser apparatus and method of controlling the same |
| CN102529384A (en) * | 2010-11-29 | 2012-07-04 | 精工爱普生株式会社 | Cleaning method, cleaning apparatus, and liquid ejecting apparatus |
| JP2012116143A (en) * | 2010-12-02 | 2012-06-21 | Seiko Epson Corp | Cleaning device, liquid jet apparatus and cleaning method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150106538A (en) | 2015-09-22 |
| CN104914597A (en) | 2015-09-16 |
| TW201534403A (en) | 2015-09-16 |
| TWI660792B (en) | 2019-06-01 |
| KR101597236B1 (en) | 2016-02-25 |
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