KR101378860B1 - Apparatus for inspecting clogged nozzle of lcd inkjet printer - Google Patents

Apparatus for inspecting clogged nozzle of lcd inkjet printer Download PDF

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KR101378860B1
KR101378860B1 KR1020130032325A KR20130032325A KR101378860B1 KR 101378860 B1 KR101378860 B1 KR 101378860B1 KR 1020130032325 A KR1020130032325 A KR 1020130032325A KR 20130032325 A KR20130032325 A KR 20130032325A KR 101378860 B1 KR101378860 B1 KR 101378860B1
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South Korea
Prior art keywords
ink
air
nozzle
slit
lcd
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KR1020130032325A
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Korean (ko)
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김현희
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(주)에스디메카텍
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16579—Detection means therefor, e.g. for nozzle clogging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
    • B41J2/2139—Compensation for malfunctioning nozzles creating dot place or dot size errors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Ink Jet (AREA)

Abstract

The present disclosure relates to an apparatus for inspecting a nozzle of an LCD inkjet equipment with a camera which takes pictures of ink minutely injecting from a inkjet head and a reading means which reads the pictures taken by the camera to determine whether the nozzle is clogged or not. In regards to the apparatus for inspecting clogging of a nozzle provided in this disclosure which has the camera taking the pictures of ink (220) minutely injecting from the inkjet head (200) where multiple nozzles (210) are formed and the reading means reading the pictures taken by the camera with the reading means, the apparatus is characterized in that an ink collection and removal device (100) is arranged in the lower portion of the inkjet head (200) to collect and remove ink injected from each nozzle, the ink collection and removal device (100) has a curved portion (135) arranged between an air injection slit (150) and an air suction slit (180), air injected from the air injection slit (150) flows into the air suction slit (180) through the curved portion (135) due to the Coanda effect, ink (220) injected from the nozzle (210) merged with air which flows along the curved portion (135), the ink merged with the air is sucked to the air suction slit (180), the ink passing through the air suction slit (180) is collected at the ink collection-and removal container, and air is discharged to outside through air discharge member (160).

Description

엘씨디 잉크젯 설비의 노즐 막힘검사장치{APPARATUS FOR INSPECTING CLOGGED NOZZLE OF LCD INKJET PRINTER}Nozzle clogging inspection device of LCD inkjet equipment {APPARATUS FOR INSPECTING CLOGGED NOZZLE OF LCD INKJET PRINTER}

본 발명은 다수개의 분사노즐이 형성된 잉크젯 헤드에서 잉크가 미세하게 분사되는 것을 카메라가 촬영하고, 촬영된 영상을 판독수단에서 판독함으로써, 막힌 분사노즐을 판별하는 LCD 잉크젯 설비용 노즐 막힘 검사장치에 관한 것으로서, 보다 상세하게는 잉크젯 헤드의 하부에 잉크수거장치가 배치되어, 에어 분사 슬릿에서 분사되는 에어가 코안다 효과에 의해 만곡부를 통해 에어 흡입 슬릿으로 흡입되는 과정에서 분사노즐에서 분사된 잉크가 만곡부를 따라 흐르는 에어에 합류되어, 잉크가 에어와 함께 에어 흡입 슬릿으로 흡입되고, 에어 흡입 슬릿을 통과한 잉크가 잉크수거통으로 수거되고, 에어가 에어배출부재를 통해 외부로 토출되는 LCD 잉크젯 설비용 노즐 막힘 검사장치에 관한 것이다.
The present invention relates to a nozzle clogging inspection apparatus for an LCD ink jet facility, which detects a clogged ejection nozzle by photographing a camera that ink is finely ejected from an inkjet head having a plurality of ejection nozzles and reading the photographed image by a reading means. In more detail, an ink collecting device is disposed below the inkjet head, and the ink ejected from the injection nozzle in the process of inhaling the air jetted from the air jetting slit into the air suction slit through the curved part by the Coanda effect is the curved part. Nozzles for LCD ink jet equipment, which are joined to the air flowing along the air, ink is sucked into the air suction slit together with the air, ink passing through the air suction slit is collected into the ink container, and air is discharged to the outside through the air discharge member. It relates to a blockage inspection device.

대한민국 특허 제10-0438919호(2004년 6월 24일, 등록)에 "잉크젯 인쇄장치의 노즐 검사 장치"가 소개되어 있다.Republic of Korea Patent No. 10-0438919 (registered June 24, 2004) is introduced "nozzle inspection apparatus of inkjet printing apparatus".

상기 잉크젯 인쇄장치의 노즐 검사 장치는 다수의 헤드가 장착된 잉크젯 인쇄장치에 있어서, 상기 헤드와 일정간격 이격되도록 판 형태로 형성되어 상기 헤드의 노즐로부터 분사된 잉크가 일측단에 떨어짐으로 인하여 변형성을 갖도록 한 캔틸레버(cantilever)와, 상기 캔틸레버의 타측단이 걸쳐지도록 상기 캔틸레버 하단에 형성된 기판과, 상기 기판 및 캔틸레버의 소정 영역을 덮도록 형성된 제1 전극과, 상기 기판과 캔틸레버가 대응하는 상기 제1 전극 상에 형성된 압전 소자(piezo)와, 상기 압전 소자 상면에 형성된 제2 전극과, 상기 제1 및 제2 전극 사이에서 발생된 신호를 감지하기 위한 신호 검출기로 구성된다.The nozzle inspection apparatus of the inkjet printing apparatus is an inkjet printing apparatus equipped with a plurality of heads, and is formed in a plate shape so as to be spaced apart from the head by a predetermined distance, so that the ink ejected from the nozzle of the head falls on one side so that it is deformable. A cantilever having a cantilever, a substrate formed at a lower end of the cantilever so that the other end of the cantilever spans, a first electrode formed to cover a predetermined region of the substrate and the cantilever, and the substrate and the cantilever corresponding to the first A piezoelectric element (piezo) formed on the electrode, a second electrode formed on the upper surface of the piezoelectric element and a signal detector for sensing a signal generated between the first and second electrodes.

그러나, 상기와 같은 종래의 잉크젯 인쇄장치의 노즐검사장치는 노즐에서 분사되는 잉크가 아주 미세하여, 전기적 신호를 검출하기 어렵고, 외부로 퍼져나가 주위 설비가 잉크에 의해 오염될 수 있는 단점이 있다.
However, the nozzle inspection apparatus of the conventional inkjet printing apparatus as described above has the disadvantage that the ink ejected from the nozzle is very fine, so that it is difficult to detect an electrical signal, and spread to the outside, thereby causing contamination of the surrounding equipment by the ink.

따라서, 본 발명의 목적은 잉크젯 헤드의 하부에 잉크수거장치가 배치되어, 에어 분사 슬릿에서 분사되는 에어가 코안다 효과에 의해 만곡부를 통해 에어 흡입 슬릿으로 흡입되는 과정에서 분사노즐에서 분사된 잉크가 만곡부를 따라 흐르는 에어에 합류되어, 잉크가 에어와 함께 에어 흡입 슬릿으로 흡입되고, 에어 흡입 슬릿을 통과한 잉크가 잉크수거통으로 수거되고, 에어가 에어배출부재를 통해 외부로 토출됨으로써, 잉크젯 헤드에서 분사되는 잉크를 수거할 수 있어, 잉크에 의해 주변이 오염되는 것을 방지할 수 있고, 코안다 효과에 의해 만곡부를 통과하는 에어에 잉크가 합류되기 때문에 각각의 분사노즐에서 분사되는 잉크가 주위로 퍼지지 않고 잉크 줄기를 형성함으로써, 카메라가 정확하게 잉크 줄기를 촬영할 수 있고, 판독 에러를 줄일 수 있는 LCD 잉크젯 설비용 노즐 막힘 검사장치를 제공하는 것이다.
Therefore, an object of the present invention is an ink collecting device is disposed in the lower portion of the inkjet head, the ink injected from the injection nozzle in the process of the air injected from the air injection slit is sucked into the air suction slit through the curved portion by the Coanda effect By joining the air flowing along the curved portion, the ink is sucked with the air into the air suction slit, the ink passing through the air suction slit is collected into the ink container, and the air is discharged to the outside through the air discharge member, whereby It is possible to collect the ejected ink, to prevent the surroundings from being contaminated by the ink, and the ink sprayed from the respective ejection nozzles does not spread to the surroundings because the ink joins the air passing through the curved portion by the Coanda effect. By forming the ink stem without the camera, the camera can accurately photograph the ink stem, reducing the reading error That is to provide a testing device for clogs LCD ink jet equipment.

상기와 같은 목적을 달성하기 위한 본 발명은 다수개의 분사노즐(210)이 형성된 잉크젯 헤드에서 잉크가 미세하게 분사되는 것을 카메라가 촬영하고, 촬영된 영상을 판독수단에서 판독함으로써, 막힌 분사노즐을 판별하는 LCD 잉크젯 설비용 노즐 막힘 검사장치에 있어서, 각각의 분사노즐에서 분사되는 잉크를 수거할 수 있도록, 잉크젯 헤드의 하부에 잉크수거장치가 배치되고, According to the present invention for achieving the above object, the camera photographs that the ink is ejected finely from the inkjet head in which the plurality of ejection nozzles 210 are formed, and the clogged ejection nozzle is determined by reading the photographed image by the reading means. In the nozzle clogging inspection apparatus for LCD ink jet equipment, the ink collecting device is disposed in the lower portion of the ink jet head to collect the ink ejected from each jet nozzle,

상기 잉크수거장치는 에어 분사 슬릿과 에어 흡입 슬릿 사이에 만곡부가 배치되어, 에어 분사 슬릿에서 분사되는 에어가 코안다 효과에 의해 만곡부를 통해 에어 흡입 슬릿으로 흡입되며, 분사노즐에서 분사된 잉크가 만곡부를 따라 흐르는 에어에 합류되어, 잉크가 에어와 함께 에어 흡입 슬릿으로 흡입되고, 에어 흡입 슬릿을 통과한 잉크가 잉크수거통으로 수거되고, 에어가 에어배출부재를 통해 외부로 토출되는 것을 특징으로 한다.
The ink collecting device has a curved portion disposed between the air jetting slit and the air suctioning slit, and the air injected from the air jetting slit is sucked into the air suctioning slit through the curved portion by the Coanda effect, and the ink injected from the jetting nozzle is curved. Joining the air flowing along, the ink is sucked into the air suction slit together with the air, the ink passing through the air suction slit is collected into the ink container, characterized in that the air is discharged to the outside through the air discharge member.

이것에 의해, 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치는 잉크젯 헤드에서 분사되는 잉크를 수거할 수 있어, 잉크에 의해 주변이 오염되는 것을 방지할 수 있고, 코안다 효과에 의해 만곡부를 통과하는 에어에 잉크가 합류되기 때문에 각각의 분사노즐에서 분사되는 잉크가 주위로 퍼지지 않고 잉크 줄기를 형성함으로써, 카메라가 정확하게 잉크 줄기를 촬영할 수 있고, 판독 에러를 줄일 수 있는 효과가 있다.
As a result, the nozzle clogging inspection apparatus for LCD inkjet equipment according to the present invention can collect the ink ejected from the inkjet head, can prevent the surroundings from being contaminated by the ink, and passes through the curved portion by the Coanda effect. Since the ink is joined to the air, the ink sprayed from the respective ejection nozzles does not spread around, so that the camera can accurately photograph the ink stem, and the reading error can be reduced.

도 1은 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치를 개략적으로 도시한 정면도
도 2는 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치를 도시한 도 1의 A-A선에 따른 단면도
도 3은 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치를 도시한 사시도
도 4 및 도 5는 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치를 도시한 도 3의 B-B선에 따른 단면도1 is a front view schematically showing a nozzle clogging inspection apparatus for an LCD ink jet installation according to the present invention
Figure 2 is a cross-sectional view taken along the line AA of Figure 1 showing a nozzle clogging inspection apparatus for an LCD inkjet equipment according to the present invention.
Figure 3 is a perspective view showing a nozzle clogging inspection apparatus for an LCD inkjet equipment according to the present invention
4 and 5 are cross-sectional views taken along the line BB of Figure 3 showing a nozzle clogging inspection apparatus for an LCD inkjet equipment according to the present invention.

이하, 본 발명의 바람직한 실시예를 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1 및 도 2를 참조하면, 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치는 다수개의 분사노즐(210)이 형성된 잉크젯 헤드(200)에서 잉크(220)가 미세하게 분사되는 것을 카메라(250)가 촬영하고, 촬영된 영상을 판독수단(도시하지 않음)에서 판독함으로써, 막힌 분사노즐(210)을 판별할 수 있다. 1 and 2, the nozzle clogging inspection apparatus for LCD inkjet equipment according to the present invention is a camera 250 that the ink 220 is finely sprayed from the inkjet head 200 in which a plurality of injection nozzles 210 are formed. ) And the clogged injection nozzle 210 can be determined by reading the photographed image by a reading means (not shown).

이때, 본 발명은 잉크젯 헤드(200)의 하부에 잉크수거장치(100)가 배치되어, 각각의 분사노즐(210)에서 분사되는 잉크를 수거하게 된다.In this case, in the present invention, the ink collecting device 100 is disposed under the inkjet head 200 to collect the ink jetted from the respective injection nozzles 210.

상기 잉크수거장치(100)는 에어 분사 슬릿(150)과 에어 흡입 슬릿(180) 사이에 만곡부(135)가 배치되어, 에어 분사 슬릿(150)에서 분사되는 에어가 코안다 효과에 의해 만곡부(135)를 통해 에어 흡입 슬릿(180)으로 흡입되며, 분사노즐(210)에서 분사된 잉크(220)가 만곡부(135)를 따라 흐르는 에어에 합류되어, 잉크가 에어와 함께 에어 흡입 슬릿(180)으로 흡입되고, 에어 흡입 슬릿(180)을 통과한 잉크가 잉크수거통(120)으로 수거되고, 에어가 에어배출부재(160)를 통해 외부로 토출된다.The ink collecting device 100 has a curved portion 135 disposed between the air jetting slit 150 and the air suction slit 180, and the air jetted from the air jetting slit 150 is curved by the Coanda effect. Through the air suction slit 180, the ink 220 sprayed from the jet nozzle 210 joins the air flowing along the curved portion 135, and the ink flows into the air suction slit 180 together with the air. The ink that has been sucked and passed through the air suction slit 180 is collected by the ink container 120, and air is discharged to the outside through the air discharge member 160.

이때, 상기 에어배출부재(13)에는 필터 등과 같이 잉크를 포집하는 수단이 장착됨으로써, 에어에 포함된 잉크를 포집할 수 있다.At this time, the air discharge member 13 is equipped with a means for collecting ink, such as a filter, it is possible to collect the ink contained in the air.

이것에 의해, 잉크젯 프린터를 이용하여 LCD 패널을 프린팅하기 전에, 다수개의 분사노즐(210)이 형성된 잉크젯 헤드(200)를 잉크수거장치(100)의 상부에 배치하고, 각각의 분사노즐(210)에서 잉크수거장치(100)로 분사하는 것을 카메라(250)가 촬영함으로써, 판독수단(도시하지 않음)에서 촬영된 영상을 판독하여 막힌 분사노즐을 판독하게 된다. 이때, 잉크수거장치(100)는 위에서 설명한 것처럼, 잉크젯 헤드(200)에서 분사되는 잉크를 수거할 수 있어, 잉크에 의해 주변이 오염되는 것을 방지할 수 있고, 코안다 효과에 의해 만곡부(135)를 통과하는 에어에 잉크가 합류되기 때문에 각각의 분사노즐(210)에서 분사되는 잉크가 주위로 퍼지지 않고 잉크 줄기를 형성함으로써, 카메라(250)가 정확하게 잉크 줄기를 촬영할 수 있고, 판독 에러를 줄일 수 있는 장점이 있다.
Thereby, before printing the LCD panel using the inkjet printer, the inkjet head 200 in which the plurality of jetting nozzles 210 are formed is disposed on the ink collecting device 100, and each jetting nozzle 210 is formed. The camera 250 photographs the ejection to the ink collecting device 100 in the above, thereby reading the image photographed by the reading means (not shown) to read the clogged ejection nozzle. In this case, as described above, the ink collecting device 100 may collect the ink jetted from the inkjet head 200, thereby preventing the surroundings from being contaminated by the ink, and the curved portion 135 by the Coanda effect. Since ink is joined to the air passing through the ink, the ink ejected from each ejection nozzle 210 does not spread around, thereby forming an ink stem, so that the camera 250 can accurately photograph the ink stem and reduce the reading error. There is an advantage.

도 3 및 도 4를 참조하면, 본 발명에 따른 LCD 잉크젯 설비용 노즐 막힘 검사장치에서, 잉크수거장치(100)는 받침판(110)에 잉크 수거통(120)이 장착되고, 잉크 수거통(120)의 어느 한 수직벽(121) 상단에 본체(130)가 장착되고, 본체(130)의 수평부(131)에 에어공급구멍(132)이 형성되고, 본체(130)의 수직부(133) 상단에 만곡부(135)가 형성되며, 본체(130)에 제 1 가이드 부재(140)가 장착되어, 제 1 가이드 부재(140)에 의해 에어공급구멍(132)의 상부에 제 1 완충 챔버(145)가 형성되고, 제 1 가이드 부재(140)의 경사 안내부(142)와 본체(130)의 만곡부(135) 사이에 에어 분사 슬릿(150)이 형성되고, 잉크 수거통(120)의 반대편 수직벽(122) 상단에 에어 배출구(161)가 형성된 에어배출부재(160)이 배치되고, 에어배출부재(160)의 상단에 커버 케이스(175)가 장착되고, 커버 케이스(175)에 제 2 가이드 부재(170)가 장착되어, 제 2 가이드 부재(170)와 만곡부(135) 사이에 에어 흡입 슬릿(180)이 형성되고, 제 2 가이드 부재(170)의 하부에 제 2 완충 챔버(185)가 형성된다.3 and 4, in the nozzle clogging inspection apparatus for LCD inkjet equipment according to the present invention, the ink collecting device 100 is equipped with an ink container 120 on the support plate 110, the ink container 120 of the The main body 130 is mounted on an upper end of one vertical wall 121, and an air supply hole 132 is formed in the horizontal part 131 of the main body 130, and the upper end of the vertical part 133 of the main body 130. A curved portion 135 is formed, and the first guide member 140 is mounted on the main body 130, and the first buffer chamber 145 is formed on the air supply hole 132 by the first guide member 140. And an air jetting slit 150 is formed between the inclined guide portion 142 of the first guide member 140 and the curved portion 135 of the main body 130, and the vertical wall 122 opposite to the ink container 120 is formed. An air discharge member 160 having an air discharge port 161 is disposed at an upper end thereof, a cover case 175 is mounted at an upper end of the air discharge member 160, and a second guide is disposed on the cover case 175. The member 170 is mounted to form an air suction slit 180 between the second guide member 170 and the curved portion 135, and a second buffer chamber 185 is disposed below the second guide member 170. Is formed.

도 5를 참조하면, 상기 본체(130)는 "ㄴ" 단면 형상을 가지며, 수평부(131)의 코너가 볼트(137)에 의해 잉크 수거통(120)의 수직벽(121) 상단에 장착되고, 수평부(131)에 에어공급구멍(132)이 형성되고, 수평부(131)에서 상부로 굴절된 수직부(133)의 상단에 만곡부(135)가 형성된다.Referring to FIG. 5, the main body 130 has a cross-sectional shape of “b”, and a corner of the horizontal portion 131 is mounted on the top of the vertical wall 121 of the ink container 120 by the bolt 137. An air supply hole 132 is formed in the horizontal portion 131, and a curved portion 135 is formed at an upper end of the vertical portion 133 refracted upward from the horizontal portion 131.

상기 제 1 가이드 부재(140)는 장착부(141)가 볼트(136)에 의해 본체(130)의 수평부(131)에 형성된 안착부(136)에 장착되고, 장착부(141)의 상단에서 경사 안내부(142)가 만곡부(135) 쪽으로 연장된다.The first guide member 140 has a mounting portion 141 is mounted to the mounting portion 136 formed on the horizontal portion 131 of the main body 130 by the bolt 136, the inclined guide from the upper end of the mounting portion 141 The portion 142 extends toward the curved portion 135.

상기 가이드 부재(170)는 에어 흡입 슬릿(180)이 형성되고, 경사 가이드부(171)가 만곡부(135)에 대응되게 형성된다.The guide member 170 is formed with an air suction slit 180, the inclined guide portion 171 is formed to correspond to the curved portion 135.

상기와 같이 구성된 잉크수거장치(100)는 에어공급구멍(132)을 통해 제 1 완충 챔버(145)로 에어가 공급되면, 제 1 완충 챔버(145)에 의해 에어 분사 슬릿(150)에서 에어가 고르게 분사되고, 에어 분사 슬릿(150)에서 분사되는 에어가 코안다 효과에 의해 만곡부(135)를 따라 이동하게 된다. 이때, 도 1 및 도 2를 참조하여 위에서 설명한 것과 같이, 분사노즐(210)에서 분사된 잉크(220)가 만곡부(135)를 따라 흐르는 에어에 합류되어, 잉크가 에어와 함께 에어 흡입 슬릿(180)으로 흡입되고, 에어 흡입 슬릿(180)을 통과한 잉크가 제 2 완충 챔버(185)에서 잉크 수거통(120)으로 낙하되고, 에어는 에어배출부재(160)를 통해 외부로 토출된다.In the ink collecting device 100 configured as described above, when air is supplied to the first buffer chamber 145 through the air supply hole 132, the air is discharged from the air injection slit 150 by the first buffer chamber 145. Evenly injected, the air injected from the air injection slit 150 is moved along the curved portion 135 by the Coanda effect. In this case, as described above with reference to FIGS. 1 and 2, the ink 220 injected from the injection nozzle 210 joins the air flowing along the curved portion 135, so that the ink flows along with the air to form the air suction slit 180. ), The ink passing through the air suction slit 180 is dropped from the second buffer chamber 185 to the ink container 120, and the air is discharged to the outside through the air discharge member 160.

이와 같이, 본 발명에 따른 잉크수거장치는 잉크젯 헤드(200)에서 분사되는 잉크를 수거할 수 있어, 잉크에 의해 주변이 오염되는 것을 방지할 수 있고, 코안다 효과에 의해 만곡부(135)를 통과하는 에어에 잉크가 합류되기 때문에 각각의 분사노즐(210)에서 분사되는 잉크가 주위로 퍼지지 않고 잉크 줄기를 형성함으로써, 카메라(250)가 정확하게 잉크 줄기를 촬영할 수 있고, 판독 에러를 줄일 수 있다.
As described above, the ink collecting device according to the present invention can collect the ink ejected from the inkjet head 200, thereby preventing the surroundings from being contaminated by the ink, and passing through the curved portion 135 by the Coanda effect. Since ink is joined to the air, the ink sprayed from each jet nozzle 210 forms ink stems without spreading to the surroundings, so that the camera 250 can accurately photograph the ink stems and reduce the reading error.

100 : 잉크수거장치 110 : 받침판
120 : 잉크 수거통 130 : 본체
135 : 만곡부 140 : 제 1 가이드 부재
150 : 에어 분사 슬릿 160 : 에어배출부재
170 : 에어 흡입 슬릿100: ink collecting device 110: support plate
120: ink container 130: the body
135: curved portion 140: first guide member
150: air injection slit 160: air discharge member
170: air suction slit

Claims (4)

다수개의 분사노즐(210)이 형성된 잉크젯 헤드(200)에서 잉크(220)가 미세하게 분사되는 것을 카메라(250)가 촬영하고, 촬영된 영상을 판독수단에서 판독함으로써, 막힌 분사노즐(210)을 판별하는 LCD 잉크젯 설비용 노즐 막힘 검사장치에 있어서,
각각의 분사노즐(210)에서 분사되는 잉크를 수거할 수 있도록, 잉크젯 헤드(200)의 하부에 잉크수거장치(100)가 배치되고,
상기 잉크수거장치(100)는 에어 분사 슬릿(150)과 에어 흡입 슬릿(180) 사이에 만곡부(135)가 배치되어, 에어 분사 슬릿(150)에서 분사되는 에어가 코안다 효과에 의해 만곡부(135)를 통해 에어 흡입 슬릿(180)으로 흡입되며, 분사노즐(210)에서 분사된 잉크(220)가 만곡부(135)를 따라 흐르는 에어에 합류되어, 잉크가 에어와 함께 에어 흡입 슬릿(180)으로 흡입되고, 에어 흡입 슬릿(180)을 통과한 잉크가 잉크수거통(120)으로 수거되고, 에어가 에어배출부재(160)를 통해 외부로 토출되는 것을 특징으로 하는 LCD 잉크젯 설비용 노즐 막힘 검사장치.
The camera 250 photographs that the ink 220 is minutely ejected from the inkjet head 200 in which the plurality of ejection nozzles 210 are formed, and the photographed image is read by the reading means, thereby blocking the clogged ejection nozzles 210. In the nozzle clogging inspection device for discriminating LCD inkjet equipment,
An ink collecting device 100 is disposed below the ink jet head 200 to collect the ink jetted from each jet nozzle 210.
The ink collecting device 100 has a curved portion 135 disposed between the air jetting slit 150 and the air suction slit 180, and the air jetted from the air jetting slit 150 is curved by the Coanda effect. Through the air suction slit 180, the ink 220 sprayed from the jet nozzle 210 joins the air flowing along the curved portion 135, and the ink flows into the air suction slit 180 together with the air. The nozzle clogging inspection apparatus for LCD ink jet equipment, characterized in that the suction, the ink passing through the air suction slit 180 is collected by the ink container 120, the air is discharged to the outside through the air discharge member (160).
다수개의 분사노즐(210)이 형성된 잉크젯 헤드(200)에서 잉크(220)가 미세하게 분사되는 것을 카메라(250)가 촬영하고, 촬영된 영상을 판독수단에서 판독함으로써, 막힌 분사노즐(210)을 판별하는 LCD 잉크젯 설비용 노즐 막힘 검사장치에 있어서,
각각의 분사노즐(210)에서 분사되는 잉크를 수거할 수 있도록, 잉크젯 헤드(200)의 하부에 잉크수거장치(100)가 배치되고,
잉크수거장치(100)는 받침판(110)에 잉크 수거통(120)이 장착되고, 잉크 수거통(120)의 어느 한 수직벽(121) 상단에 본체(130)가 장착되고, 본체(130)의 수평부(131)에 에어공급구멍(132)이 형성되고, 본체(130)의 수직부(133) 상단에 만곡부(135)가 형성되며, 본체(130)에 제 1 가이드 부재(140)가 장착되어, 제 1 가이드 부재(140)에 의해 에어공급구멍(132)의 상부에 제 1 완충 챔버(145)가 형성되고, 제 1 가이드 부재(140)의 경사 안내부(142)와 본체(130)의 만곡부(135) 사이에 에어 분사 슬릿(150)이 형성되고, 잉크 수거통(120)의 반대편 수직벽(122) 상단에 에어 배출구(161)가 형성된 에어배출부재(160)이 배치되고, 에어배출부재(160)의 상단에 커버 케이스(175)가 장착되고, 커버 케이스(175)에 제 2 가이드 부재(170)가 장착되어, 제 2 가이드 부재(170)와 만곡부(135) 사이에 에어 흡입 슬릿(180)이 형성되고, 제 2 가이드 부재(170)의 하부에 제 2 완충 챔버(185)가 형성되는 것을 특징으로 하는 LCD 잉크젯 설비용 노즐 막힘 검사장치.
The camera 250 photographs that the ink 220 is minutely ejected from the inkjet head 200 in which the plurality of ejection nozzles 210 are formed, and the photographed image is read by the reading means, thereby blocking the clogged ejection nozzles 210. In the nozzle clogging inspection device for discriminating LCD inkjet equipment,
An ink collecting device 100 is disposed below the ink jet head 200 to collect the ink jetted from each jet nozzle 210.
The ink collecting device 100 has an ink container 120 mounted on the support plate 110, a main body 130 mounted on an upper end of any one vertical wall 121 of the ink container 120, and the horizontal of the main body 130. An air supply hole 132 is formed in the portion 131, a curved portion 135 is formed at an upper end of the vertical portion 133 of the main body 130, and the first guide member 140 is mounted in the main body 130. The first buffer chamber 145 is formed in the upper portion of the air supply hole 132 by the first guide member 140, and the inclined guide part 142 of the first guide member 140 and the main body 130 are separated from each other. An air ejection slit 150 is formed between the curved portions 135, an air exhaust member 160 having an air outlet 161 formed on an upper side of the vertical wall 122 opposite to the ink container 120 is disposed, and an air exhaust member. The cover case 175 is mounted on the upper end of the 160, and the second guide member 170 is mounted on the cover case 175 so that the air suction slit (B) between the second guide member 170 and the curved portion 135 is formed. 180) And forming the second guide member 170, the lower second clogging nozzle for a LCD-jet equipment, characterized in that the buffer chamber 185 is formed on the testing device.
제 2 항에 있어서,
상기 본체(130)는 "ㄴ" 단면 형상을 가지며, 수평부(131)의 코너가 볼트(137)에 의해 잉크 수거통(120)의 수직벽(121) 상단에 장착되고, 수평부(131)에 에어공급구멍(132)이 형성되고, 수평부(131)에서 상부로 굴절된 수직부(133)의 상단에 만곡부(135)가 형성되는 것을 특징으로 하는 LCD 잉크젯 설비용 노즐 막힘 검사장치.
3. The method of claim 2,
The main body 130 has a cross-sectional shape of “b”, and a corner of the horizontal portion 131 is mounted on the top of the vertical wall 121 of the ink container 120 by the bolt 137, and is mounted on the horizontal portion 131. The air supply hole (132) is formed, the nozzle clogging inspection apparatus for LCD ink jet equipment, characterized in that the curved portion 135 is formed on the upper end of the vertical portion 133 is refracted from the horizontal portion (131).
제 2 항에 있어서,
상기 제 1 가이드 부재(140)는 장착부(141)가 볼트(136)에 의해 본체(130)의 수평부(131)에 형성된 안착부(136)에 장착되고, 장착부(141)의 상단에서 경사 안내부(142)가 만곡부(135) 쪽으로 연장되는 것을 특징으로 하는 LCD 잉크젯 설비용 노즐 막힘 검사장치.3. The method of claim 2,
The first guide member 140 has a mounting portion 141 is mounted to the mounting portion 136 formed on the horizontal portion 131 of the main body 130 by the bolt 136, the inclined guide from the upper end of the mounting portion 141 Nozzle clogging inspection apparatus for LCD inkjet equipment, characterized in that the portion 142 extends toward the curved portion (135).
KR1020130032325A 2013-03-26 2013-03-26 Apparatus for inspecting clogged nozzle of lcd inkjet printer KR101378860B1 (en)

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Cited By (1)

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KR20240056225A (en) 2022-10-21 2024-04-30 에이피시스템 주식회사 Apparatus for inspecting inkjet head nozzle and method for inspecting inkjet head nozzle

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