KR102045729B1 - Jetting Valve For Dispensing Apparatus - Google Patents

Jetting Valve For Dispensing Apparatus Download PDF

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Publication number
KR102045729B1
KR102045729B1 KR1020120138994A KR20120138994A KR102045729B1 KR 102045729 B1 KR102045729 B1 KR 102045729B1 KR 1020120138994 A KR1020120138994 A KR 1020120138994A KR 20120138994 A KR20120138994 A KR 20120138994A KR 102045729 B1 KR102045729 B1 KR 102045729B1
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KR
South Korea
Prior art keywords
raw material
tappet
valve
fluid box
valve body
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KR1020120138994A
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Korean (ko)
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KR20140071069A (en
Inventor
임영균
이제섭
윤승욱
Original Assignee
엘지디스플레이 주식회사
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Priority to KR1020120138994A priority Critical patent/KR102045729B1/en
Publication of KR20140071069A publication Critical patent/KR20140071069A/en
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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
    • 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
    • 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
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Coating Apparatus (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

The present invention, a valve body including a tappet and a piezo portion for providing power to the tappet; A fluid box for storing raw materials discharged by the tappet; An adjusting nut for adjusting the stroke of the tappet; A raw material supply pipe for transferring the raw material to the fluid box; Provided is a jetting valve for a dropping device including a cooling unit for cooling the valve body using clean dry air at a constant pressure.

Description

Jetting Valve For Dispensing Apparatus}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jetting valve, and more particularly, to a jetting valve for a dropping device having improved discharge amount uniformity and discharge straightness of a raw material.

Liquid crystal display devices (LCDs), which are used for TVs and monitors due to their high contrast ratio and are advantageous for displaying moving images, are used for optical anisotropy and polarization of liquid crystals. To display the video.

Such a liquid crystal display is an essential component of a liquid crystal panel formed by bonding a liquid crystal layer between two substrates facing each other, and the arrangement direction of liquid crystal molecules is changed by an electric field in the liquid crystal panel, thereby allowing a difference in transmittance. Implement

However, since the liquid crystal panel does not have a light emitting element, a separate light source is required to display the difference in transmittance as an image, and for this purpose, a backlight unit including a light source is disposed on the back of the liquid crystal panel.

The liquid crystal panel and the backlight unit have a top frame covering the top edge of the liquid crystal panel and a bottom frame covering the rear surface of the backlight unit while the edge is surrounded by a main frame having a rectangular frame. frames) are respectively combined in front and rear and are integrated through the main frame.

In recent years, the liquid crystal display device has been gradually increasing its use area, such as a monitor and a wall-mounted television of a desktop computer as well as a portable computer. It's going on.

Accordingly, by omitting the top frame to reduce the components of the liquid crystal display device, the movement to provide a lightweight and thin liquid crystal display device is actively progressing.

In addition, in addition to light weight and thinness, there is also an active effort to provide a liquid crystal display device having a narrow bezel in which a bezel area, which is a non-display area other than the display area, is simultaneously expanded while the display area is expanded. have.

In order to manufacture a liquid crystal display device having a narrow bezel, the top frame surrounding the front edge of the liquid crystal panel should be omitted. Accordingly, the liquid crystal panel is formed by sealing material to seal the side or rear surface of the liquid crystal panel with the main frame (or It is fixed to the side or top of the bottom frame).

The sealing agent is made of a raw material such as resin, and the raw material is formed at a desired position of the liquid crystal panel or the main frame by a dropping device.

Such a dropping device includes a jetting valve for discharging raw materials, which will be described with reference to the drawings.

1 is a perspective view showing a jetting valve for a conventional dropping device, Figure 2 is a cross-sectional view showing the interior of the jetting valve for a conventional dropping device.

1 and 2, the conventional jetting valve 10 includes a valve body 20, a sensor circuit unit 30, a fluid box 40, an adjustment nut 50, and a raw material supply pipe 60. And a heating unit 70.

The valve body 20 includes a tappet 22 reciprocating linearly therein and a piezo part 24 for providing power to the tappet 22 for reciprocating motion.

Here, vibration is generated when a voltage is applied to the piezoelectric part 24, and the generated vibration is transmitted to the tappet 22 to be changed to reciprocating motion of the tappet 22.

The sensor circuit unit 30 supplies power to the piezo unit 24 and the plurality of sensors and processes data output from the plurality of sensors.

The fluid box 40 includes a storage space 42 of raw materials supplied from the outside, and discharges a predetermined amount of raw materials in the storage space 42 according to the reciprocating motion of the tappet 22.

The adjusting nut 50 adjusts the stroke of the tappet 22 and includes a nozzle 52 formed in the inner center portion.

The raw material introduced to the nozzle 52 fixed to the fluid box 40 is discharged drop by drop according to the reciprocating motion of the tappet 22, and the raw material according to the speed (ie, stroke) of the reciprocating motion of the tappet 22. Discharge characteristics such as the uniformity of discharge amount and the discharge straightness of the substance are determined, and the appropriate stroke of the tappet 22 can be set by turning the adjusting nut 50.

The raw material supply pipe 60 is a passage for transferring the raw material from the external raw material supply source to the fluid box 40 and is connected to the storage space 42 of the fluid box 40.

The heating unit 70 includes a temperature sensor 72 and a heat source 74 and is mounted outside the fluid box 40 to heat the raw material in the storage space 42 of the fluid box 40.

When the raw material is cooled and the viscosity is increased, the discharge characteristics such as the uniformity of the discharge amount and the discharge straightness of the raw material may be deteriorated. In order to prevent this, the heat of the heat source 74 is transferred through the fluid box 40 in a heat conductive manner. Transfer to the raw material of the storage space 42 to prevent the viscosity rise.

The conventional jetting valve 10 has some problems.

First, heat is generated by the vibration of the piezo part 24. When the temperature of the piezo part 24 rises due to the generated heat, the vibration characteristic of the piezo part 24 is lowered.

When the vibration characteristics of the piezo section 24 are lowered, the characteristics of the reciprocating motion of the tappet 22 are lowered, and as a result, there is a problem that the discharge amount uniformity and the discharge straightness of the raw material are lowered.

In particular, in the high-speed precision dropping process of driving the piezo section 24 to about 250 Hz to about 400 Hz, the heat generation amount of the piezo section 24 is further increased to further reduce the uniformity and the discharge straightness of the raw material.

In addition, since the raw material in the storage space 42 is heated by the heat conduction through the fluid box 40, the heating efficiency of the heating unit 70 decreases, and since the actual temperature of the raw material cannot be measured, the raw material is heated to the correct temperature. can not do.

Accordingly, there is a problem that the discharge amount at the initial stage of the dropping process is relatively large, and the discharge amount decreases as the dropping process proceeds, and the discharge amount uniformity and discharge straightness of the raw material are lowered.

In particular, during the high-speed precision dropping process, the raw material is discharged before it is heated to an appropriate temperature, and the discharge amount uniformity and discharge straightness of the raw material are further reduced.

In addition, since the adjustment nut 50 has to set the stroke of the tappet 22 differently according to a process, it does not have a fixed structure.

Therefore, a change occurs in the set stroke as the adjusting nut 50 is released during the process, and thus there is a problem that the discharge amount of the raw material changes.

In order to prevent this, if the stroke of the tappet 22 is not stabilized by loosening the adjusting nut 50, the dropping process may be stopped to minimize the occurrence of defects, but the decrease in productivity due to the interruption may not be avoided.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a jetting valve for a dropping device in which a uniformity in discharge amount of raw material and discharge straightness are improved by cooling the piezo part by a cooling unit.

Another object of the present invention is to provide a jetting valve for a dropping device in which the raw material of the raw material supply pipe is directly heated by a heating unit, whereby the discharge amount uniformity and discharge straightness of the raw material are improved.

In addition, another object of the present invention is to provide a jetting valve for a dropping device in which the discharge nut uniformity and discharge straightness of the raw material are improved by fixing the adjustment nut set by the fixing means.

To this end, the present invention, the valve body including a tappet and a piezo portion for providing power to the tappet; A fluid box for storing raw materials discharged by the tappet; An adjusting nut for adjusting the stroke of the tappet; A raw material supply pipe for transferring the raw material to the fluid box; Provided is a jetting valve for a dropping device including a cooling unit for cooling the valve body using clean dry air at a constant pressure.

The cooling unit includes an inflow pipe through which the clean dry air flows; An outlet pipe through which the clean dry air flows out; A flow rate control unit controlling a flow rate of the clean dry air delivered to the inlet pipe; It may include a pressure control unit for maintaining the pressure of the clean dry air delivered to the inlet pipe.

In addition, an inlet and an outlet are formed on the side of the valve body, the inlet and the outlet are connected to the inlet and the outlet, respectively, the clean dry air, the pressure control unit, the flow control unit, the inlet pipe And it is introduced into the valve body through the inlet can be in direct contact with the piezo portion 124 to cool the piezo portion, and can be discharged from the valve body through the outlet and the outlet pipe.

The jetting valve for the dropping device may further include a heating unit for heating the raw material of the raw material supply pipe.

In addition, the heating unit, the first and second side portion coupled to surround both sides of the raw material supply pipe; Each of the first and second side parts may include first and second heat sources configured to supply heat.

The heating unit may further include a front part integrally formed with at least one of the first and second side parts and surrounding the front surface of the fluid box.

In addition, the jetting valve for the dropping device may further include a fixing part for fixing the adjustment nut.

And, the fixing portion, the front portion is coupled to surround the front of the fluid box; Passing through the front portion may include a first and second screws in contact with both sides of the adjustment nut.

In addition, the front part may include an opening through which the adjusting nut protrudes, and first and second screw holes facing each other.

A portion of the side surface of the adjusting nut is exposed to the outside through the opening, and the remaining portion of the side surface of the adjusting nut is surrounded by the front portion and passes through the first and second screw holes. It may be in contact with the second screw.

The present invention has the effect of improving the discharge characteristics of the jetting valve for the dripping apparatus such as uniformity of discharge amount of raw material and discharge straightness by cooling the piezo part by the cooling unit.

In addition, the present invention has the effect of improving the discharge characteristics of the jetting valve for the dripping apparatus, such as uniformity in discharge amount uniformity and discharge straightness of the raw material by directly heating the raw material of the raw material supply pipe by the heating unit.

In addition, the present invention has the effect of improving the discharge characteristics of the jetting valve for the dripping apparatus, such as uniformity of discharge amount of raw material and discharge straightness by fixing the adjustment nut set by the fixing means.

1 is a perspective view showing a jetting valve for a conventional dripping device.
2 is a cross-sectional view showing the interior of a jetting valve for a conventional dripping apparatus.
Figure 3 is a perspective view of the jetting valve for the dripping device according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing the interior of the jetting valve for the dripping apparatus according to an embodiment of the present invention.
5 is a view showing a cooling unit of the jetting valve according to an embodiment of the present invention.
6 is a view showing a heating portion of the jetting valve according to an embodiment of the present invention.
7 is a view showing a fixing part of the jetting valve according to an embodiment of the present invention.

Hereinafter, a jetting valve for a dripping apparatus according to the present invention will be described with reference to the accompanying drawings.

3 is a perspective view showing a jetting valve for the dripping device according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing the interior of the jetting valve for the dripping device according to an embodiment of the present invention.

As shown in FIGS. 3 and 4, the jetting valve 110 according to the embodiment of the present invention includes a valve body 120, a sensor circuit unit 130, and a fluid box 140. , A control nut 150, a raw material supply pipe 160, a cooling block 170, a heating block 180, and a fixing block 190.

For example, the raw material may be a resin, the jetting valve 110 may be used in the dropping device using the resin.

The valve body 120 includes a tappet 122 reciprocating linearly therein and a piezo electric 124 for providing power to the tappet 122 for reciprocating motion.

Here, the tappet 122 is a device for pushing and discharging the raw material in a drop state by the reciprocating motion, the piezo section 124 is a device for converting an electrical signal into a vibration.

That is, when a voltage is applied to the piezoelectric unit 124, vibration is generated, and the generated vibration is transmitted to the tappet 122 to be changed to the reciprocating motion of the tappet 122.

The sensor circuit unit 130 supplies power to the piezo unit 124, the heating unit 180, and the plurality of sensors and processes data output from the plurality of sensors.

The fluid box 140 includes a storage space 142 of the raw material supplied from the outside and discharges a predetermined amount of the raw material in the storage space 142 according to the reciprocating motion of the tappet 122.

The adjustment nut 150 adjusts the stroke of the tappet 122 and includes a nozzle 152 disposed in the inner center portion.

That is, the raw material introduced to the nozzle 152 formed on the front of the fluid box 140 is discharged drop by drop according to the reciprocation of the tappet 122, the speed (ie, stroke) of the reciprocating motion of the tappet 122 As a result, the discharge characteristics such as the uniformity of the discharge amount and the discharge straightness of the raw material are determined, and the appropriate stroke of the tappet 122 can be set by turning the adjusting nut 150.

The raw material supply pipe 160 is a passage for transferring the raw material from the external raw material supply source to the fluid box 140 and is connected to the storage space 142 of the fluid box 140.

The cooling unit 170 is connected to the side of the valve body 120, and serves to cool the valve body 120 by using a clean dry air of a constant pressure, the configuration of the cooling unit 170 And the function will be described in detail later.

The heating unit 180 is mounted to the outside of the raw material supply pipe 160, and serves to directly heat the raw material to a preset temperature. The configuration and function of the heating unit 180 will be described in detail later.

The fixing part 190 is mounted on the front surface of the fluid box 140 to surround the side of the adjusting nut 150 and serves to fix the adjusting nut 150 set to a specific position. And the function will be described in detail later.

In the jetting valve 110 as described above, since the piezo part 124 of the valve body is cooled by the cooling unit 170, the temperature rise of the piezo part 124 is suppressed and the vibration characteristic is maintained, and as a result, the tappet ( The reciprocation of 122) is kept constant. And, since the raw material of the raw material supply pipe 160 is directly heated by the heating unit 180, the heating efficiency is improved and the heating temperature of the raw material is maintained accurately. In addition, since the adjustment nut 150 is fixed by the fixing unit 190, the stroke of the tappet 122 is kept constant.

Thus, the discharge characteristics of the jetting valve such as the discharge amount uniformity and the discharge straightness are improved.

The cooling part, the heating part, and the fixing part of the jetting valve will be described with reference to the drawings.

5 is a view illustrating a cooling unit of the jetting valve according to an embodiment of the present invention, which will be described with reference to FIGS. 3 and 4.

As shown in FIG. 5, the cooling unit 170 of the jetting valve 110 includes an inlet tube 172, an outlet tube 174, a flow rate controller 176, and a pressure controller 178.

The inlet pipe 172 and the outlet pipe 174 are passages through which the clean dry air (CDA) flows in and out, respectively, and are connected to the inlets 126 and the outlets 128 formed on the side surfaces of the valve body 120, respectively. do.

The flow control unit 176 is a device for adjusting the flow rate of the clean dry air supplied to the inlet pipe 172, the optimum flow rate may be set differently according to the structure and size of the jetting valve 110, than the optimum flow rate At small or large flow rates, the discharge characteristics of the jetting valve 110 may be degraded.

 The pressure control unit 178 is a device for maintaining a constant pressure of the clean dry air supplied to the inlet pipe 172, and is connected to an external clean dry air supply unit (not shown).

By the cooling unit 170, the clean and dry air flows into the valve body 120 through the pressure control unit 178, the flow control unit 176, the inlet pipe 172, and the inlet 126. After cooling the piezo part 124 therein, it flows out of the valve body 120 through the outlet 128 and the outlet pipe 174.

Since the clean and dry air comes into direct contact with the piezo part 124 and cools it, the cooling efficiency is improved and the temperature rise of the piezo part 124 is effectively suppressed.

6 is a view illustrating a heating unit of the jetting valve according to an embodiment of the present invention, which will be described with reference to FIGS. 3 and 4.

As shown in FIG. 6, the heating unit 180 of the jetting valve 110 includes the first and second side portions 182a and 182b, the first and second heat sources 184a and 184b, and the first and second heating units 180. Second temperature sensors 186a and 186b.

The first and second side parts 182a and 182b face each other and are coupled to surround side surfaces of the raw material supply pipe 160, and include first and second heat sources 184a and 184b and first and second temperature sensors. 186a and 186b are embedded in the first and second side portions 182a and 182b, respectively.

Heat from the first and second heat sources 184a and 184b is transferred directly to the raw materials on both sides of the raw material supply pipe 160, respectively, and the first and second temperature sensors 186a and 186b are respectively supplied to the raw material supply pipe 160. The temperature of both sides of the sensor may be sensed and fed back to the first and second heat sources 184a and 184b to maintain the set temperature.

As such, since the raw material of the raw material supply pipe 160 is directly heated through the first and second side portions 182a and 182b surrounding the raw material supply pipe 160, the heating efficiency of the heating unit 180 is improved.

In addition, since the first and second side parts 182a and 182b symmetrically heat the raw materials on both sides of the raw material supply pipe 160, the temperature uniformity of the raw materials of the raw material supply pipe 160 is improved.

In addition, since the raw material of the raw material supply pipe 160 having a larger volume than the storage space 142 of the fluid box 140 is heated, the heating capacity is increased, and as a result, a sufficient amount of raw material is heated even in a high-speed precision dropping process. can do.

Additionally, when at least one of the first and second side portions 182a and 182b is integrally formed with the front portion 192 of FIG. 7 of the fixing portion 190 surrounding the front surface of the fluid box 140, The heat of the second heat sources 184a and 184b may be transferred to the raw material of the storage space 142 of the fluid box 140 through the front portion 192 and the fluid box 140 in a thermally conductive manner. The temperature difference between the raw material of the raw material supply pipe 160 and the raw material of the storage space 142 may be minimized.

7 is a view illustrating a fixing part of a jetting valve according to an embodiment of the present invention, which will be described with reference to FIGS. 3 and 4.

As shown in FIG. 7, the fixing part 190 of the jetting valve 110 includes a front part 192 and first and second screws 194a and 194b.

The front part 192 is coupled to surround the front surface of the fluid box 140. The front part 192 has an opening 196 through which the adjustment nut 150 protrudes, and the first and the first parts formed on the side facing each other. Two screw holes 198a and 198b are formed.

A portion of the side of the adjustment nut 150 is exposed to the outside through the opening 196, the remaining portion of the side of the adjustment nut 150 is surrounded by the front portion 192, the first and second screw holes 198a 198b).

The first and second screws 194a and 194b may contact the side surfaces of the adjustment nut 150 through the first and second screw holes 198a and 198b.

That is, after setting the adjusting nut 150 to correspond to a specific stroke of the tappet 122, the adjusting nut 150 is adjusted through the first and second screw holes 198a and 198b. By contacting opposite sides of the 150, the adjustment nut 150 can be fixed.

As such, by fixing the adjusting nut 150 using the fixing part 190, the adjusting nut 150 may be prevented from being loosened during the dropping process, and the stroke change of the tappet 122 may be prevented.

At this time, since the symmetrical force is applied to both sides of the adjustment nut 150 using the first and second screws 194a and 194b, the center of the tappet 122 and the adjustment nut 150 are separated from the shaft. You can prevent it.

In addition, the front part 192 of the fixing part 190 is integrally formed with at least one of the first and second side parts 182a and 182b of the heating part 180, thereby forming the first and second parts of the heating part 180. The heat of the two heat sources 184a and 184b may be indirectly transmitted to the raw material of the storage space 142 of the fluid box 140 through the front portion 192 and the fluid box 140 in a thermally conductive manner.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

110: jetting valve 120: valve body
130: sensor circuit 140: fluid box
150: adjusting nut 160: raw material supply pipe
170: cooling unit 180: heating unit
190: fixed part

Claims (11)

A valve body comprising a tappet and a piezo part for providing power to the tappet;
A fluid box for storing raw materials discharged by the tappet;
An adjusting nut for adjusting the stroke of the tappet;
A raw material supply pipe for transferring the raw material to the fluid box;
Fixing part for fixing the adjusting nut
Including,
The fixing portion,
A front part surrounding and coupled to the front of the fluid box;
First and second screws passing through the front portion and in contact with both sides of the adjustment nut
Jetting valve for dropping device comprising a.
The method of claim 1,
Further comprising a cooling unit for cooling the valve body using a clean dry air of a constant pressure,
The cooling unit,
An inlet pipe through which the clean dry air is introduced;
An outlet pipe through which the clean dry air flows out;
A flow rate control unit controlling a flow rate of the clean dry air delivered to the inlet pipe;
Pressure control unit for maintaining the pressure of the clean dry air delivered to the inlet pipe
Jetting valve for dropping device comprising a.
The method of claim 2,
Inlet and outlet are formed on the side of the valve body,
The inlet pipe and the outlet pipe are respectively connected to the inlet and the outlet,
The clean and dry air is introduced into the valve body through the pressure control part, the flow control part, the inlet pipe, and the inlet port to directly contact the piezo part to cool the piezo part, and through the outlet port and the outlet pipe. Jetting valve for the dripping device flowing out of the valve body.
The method of claim 1,
Jetting valve for dropping device further comprises a heating unit for heating the raw material of the raw material supply pipe.
The method of claim 4, wherein
The heating unit,
First and second side portions which surround and combine both sides of the raw material supply pipe;
First and second heat sources respectively installed in the first and second side parts to supply heat;
Jetting valve for dropping device comprising a.
The method of claim 5,
The heating unit is integrally formed with at least one of the first and second side portion, the jetting valve for the dripping apparatus further comprises a front portion surrounding the front of the fluid box.
delete delete The method of claim 1,
Jetting valve for the dripping apparatus is formed in the front portion, the opening and the first and second screw holes facing each other and the opening in which the adjustment nut protrudes.
The method of claim 9,
A portion of the side surface of the adjustment nut is exposed to the outside through the opening, the remaining portion of the side surface of the adjustment nut is surrounded by the front portion and the first and second screw holes passed through the first and second screw holes Jetting valve for the dripping device in contact with the screw. A valve body comprising a tappet and a piezo part for providing power to the tappet;
A fluid box for storing raw materials discharged by the tappet;
An adjusting nut for adjusting the stroke of the tappet;
A raw material supply pipe for transferring the raw material to the fluid box;
Cooling unit for cooling the valve body using a constant pressure clean dry air
Including,
The tappet reciprocates linearly by the vibration of the piezo part,
Jetting valve for dropping device is the raw material introduced to the nozzle of the adjustment nut is discharged drop by drop according to the reciprocating motion of the tappet.
KR1020120138994A 2012-12-03 2012-12-03 Jetting Valve For Dispensing Apparatus KR102045729B1 (en)

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Application Number Priority Date Filing Date Title
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KR20140071069A KR20140071069A (en) 2014-06-11
KR102045729B1 true KR102045729B1 (en) 2019-11-18

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JP6706076B2 (en) 2016-01-14 2020-06-03 新光電気工業株式会社 Probe guide plate, manufacturing method thereof, and probe device

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JP2000140779A (en) * 1998-11-09 2000-05-23 Dainippon Screen Mfg Co Ltd Treatment solution supply nozzle
JP2009080273A (en) * 2007-09-26 2009-04-16 Toshiba Corp Liquid crystal discharge device and method of manufacturing liquid crystal panel using the same
WO2011138883A1 (en) * 2010-05-07 2011-11-10 シャープ株式会社 Coating apparatus and coating method

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JP2000140779A (en) * 1998-11-09 2000-05-23 Dainippon Screen Mfg Co Ltd Treatment solution supply nozzle
JP2009080273A (en) * 2007-09-26 2009-04-16 Toshiba Corp Liquid crystal discharge device and method of manufacturing liquid crystal panel using the same
WO2011138883A1 (en) * 2010-05-07 2011-11-10 シャープ株式会社 Coating apparatus and coating method

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