KR102161544B1 - 액적 토출 장치 및 액적 토출 방법 - Google Patents
액적 토출 장치 및 액적 토출 방법 Download PDFInfo
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- KR102161544B1 KR102161544B1 KR1020190171632A KR20190171632A KR102161544B1 KR 102161544 B1 KR102161544 B1 KR 102161544B1 KR 1020190171632 A KR1020190171632 A KR 1020190171632A KR 20190171632 A KR20190171632 A KR 20190171632A KR 102161544 B1 KR102161544 B1 KR 102161544B1
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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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04588—Control methods or devices therefor, e.g. driver circuits, control circuits using a specific waveform
-
- 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14008—Structure of acoustic ink jet print heads
-
- 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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
-
- 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
- B41J2/07—Ink jet characterised by jet control
-
- 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14032—Structure of the pressure chamber
- B41J2/14056—Plural heating elements per ink chamber
-
- 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14088—Structure of heating means
-
- 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
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
-
- 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
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Abstract
Description
도 2는 본 발명에 따른 액적 토출 과정을 설명하기 위한 개념도이다.
도 3은 본 발명의 실시예에 따른 액적 토출 장치의 설명하기 위한 정면(a) 및 측면(b) 예시도이다.
도 4는 도 3의 제2 정재파 발생부를 확대하여 나타낸 부분 확대도로서, 제2 정재파 발생부의 다양한 예를 설명하기 위한 도면이다.
도 5는 본 발명의 다른 실시예에 따른 액적 토출 장치를 설명하기 위한 도면이다.
도 6은 본 발명의 또 다른 실시예에 따른 액적 토출 장치를 설명하기 위한 도면이다.
200: 노즐
300: 정재파 발생유닛
310: 제1 정재파 발생부
330: 제2 정재파 발생부
Claims (13)
- 용액에 가압력을 제공하기 위한 용액 공급유닛;
연결관을 매개로 상기 용액 공급유닛에 연결되며 용액을 액적 형태로 토출시키는 노즐; 및
상기 노즐로부터 토출되는 액적의 분리력을 제공하기 위하여, 액적이 형성되는 상기 노즐의 주변 영역에 정재파를 형성하는 정재파 발생유닛;을 포함하고,
상기 정재파 발생유닛은,
제1 정재파를 형성하는 제1 정재파 영역이 내부에 마련되는 제1 정재파 챔버를 가지는 제1 정재파 발생부; 및
상기 제1 정재파 발생부와 연결되되, 상기 제1 정재파 영역과 연통되도록 상기 제1 정재파 챔버에 대해 액적의 토출방향으로 관통 형성되며, 상기 제1 정재파 영역에서 내부로 도입되는 상기 제1 정재파를 증폭시켜 제2 정재파를 형성하는 제2 정재파 영역이 내부에 마련되는 터널부를 구비하는 제2 정재파 발생부;를 포함하며,
상기 제1 정재파 챔버는 상기 노즐을 감싸도록 배치되며, 상기 제1 정재파 및 상기 제2 정재파는 공기를 매질로 하여 상기 노즐의 주변 영역으로 음향력을 제공하며,
상기 터널부는 상기 제1 정재파의 주파수와 일치하는 고유주파수를 가지며,
상기 노즐의 노즐팁은 상기 제2 정재파 영역에 배치되되, 음향력이 최대가 되는 피크와 동일한 위치에 배치되도록 상기 제2 정재파 발생부의 바닥면으로부터 미리 설정된 높이에 배치되고,
상기 노즐의 노즐홀은 소수성 표면처리가 되어 있는 것을 특징으로 하는 액적 토출 장치. - 삭제
- 삭제
- 제1항에 있어서,
상기 정재파 발생유닛은 상기 노즐에 미리 설정된 크기의 액적이 형성될 경우, 상기 제2 정재파의 음향력이 최대가 되는 피크가 상기 노즐팁과 동일한 위치에서 형성되도록 상기 제1 정재파 발생부를 제어하는 제어부;를 더 포함하는 것을 특징으로 하는 액적 토출 장치. - 제1항에 있어서,
상기 제1 정재파 발생부는,
음파를 발생시켜 상기 제1 정재파 영역으로 음파를 방사하는 음파 발생부; 및
상기 음파 발생부로부터 제1 간격을 유지하도록 이격 배치되며, 상기 음파 발생부에서 방사되는 음파를 반사하는 음파 반사부;를 더 포함하는 것을 특징으로 하는 액적 토출 장치. - 제5항에 있어서,
상기 제1 간격은 음파의 반파장(λ/2)의 정수배인 것을 특징으로 하는 액적 토출 장치. - 삭제
- 제1항에 있어서,
상기 터널부는,
제1 직경을 가지며, 상기 제1 정재파 영역에 연결되는 제1 터널부; 및
상기 제1 직경보다 작은 제2 직경을 가지며, 상기 제1 터널부에 연결되는 제2 터널부;를 포함하고,
상기 제1 터널부 및 상기 제2 터널부가 번갈아가며 배치되는 것을 특징으로 하는 액적 토출 장치. - 제1항에 있어서,
상기 노즐 및 상기 정재파 발생유닛은 미리 설정된 간격을 유지하며 복수개가 구비되는 것을 특징으로 하는 액적 토출 장치. - 제9항에 있어서,
상기 용액 공급유닛은 각각의 상기 노즐을 향해 동일한 가압력으로 용액을 공급하거나, 각각의 상기 노즐을 향해 서로 다른 가압력으로 용액을 공급하도록 마련되는 것을 특징으로 하는 액적 토출 장치. - 제1항에 있어서,
상기 노즐을 통과하는 용액의 점도가 낮아지도록 상기 노즐을 가열하는 히터부를 더 포함하는 것을 특징으로 하는 액적 토출 장치. - 제1항에 기재된 액적 토출 장치를 이용한 액적 토출 방법으로서,
상기 용액 공급유닛을 통해 용액이 가압되어 상기 노즐에 액적이 형성되는 액적형성단계; 및
상기 정재파 발생유닛을 통해 형성된 정재파의 음향력을 이용하여 상기 노즐에 형성된 액적을 분리하는 액적분리단계;를 포함하는 것을 특징으로 하는 액적 토출 방법. - 제12항에 있어서,
상기 액적분리단계는,
상기 노즐에 미리 설정된 크기의 액적이 형성될 경우, 상기 정재파 발생유닛을 제어하여 노즐팁과 동일한 위치에서 정재파의 음향력이 최대가 되는 피크가 형성되도록 하는 것을 특징으로 하는 액적 토출 방법.
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KR1020190171632A KR102161544B1 (ko) | 2019-12-20 | 2019-12-20 | 액적 토출 장치 및 액적 토출 방법 |
US17/632,031 US12023923B2 (en) | 2019-12-20 | 2020-12-09 | Droplet ejection apparatus and droplet ejection method using the same |
PCT/KR2020/017987 WO2021125687A1 (ko) | 2019-12-20 | 2020-12-09 | 액적 토출 장치 및 이를 이용한 액적 토출 방법 |
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KR1020190171632A KR102161544B1 (ko) | 2019-12-20 | 2019-12-20 | 액적 토출 장치 및 액적 토출 방법 |
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WO2021125687A1 (ko) * | 2019-12-20 | 2021-06-24 | 한국기계연구원 | 액적 토출 장치 및 이를 이용한 액적 토출 방법 |
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JP2011201169A (ja) * | 2010-03-25 | 2011-10-13 | Seiko Epson Corp | 液体噴射ヘッド、液体噴射ヘッドユニット及び液体噴射装置 |
KR101087315B1 (ko) | 2003-10-07 | 2011-11-25 | 소니 주식회사 | 액체 토출 장치 |
JP2012113137A (ja) * | 2010-11-25 | 2012-06-14 | Ricoh Co Ltd | トナー製造方法、トナー製造装置及びトナー |
WO2019011674A1 (en) * | 2017-07-12 | 2019-01-17 | Mycronic AB | PROJECTION DEVICES HAVING ACOUSTIC TRANSDUCERS AND METHODS OF CONTROLLING SAME |
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JP3242859B2 (ja) * | 1997-04-03 | 2001-12-25 | 三菱電機株式会社 | 液体噴出装置及びプリンタ装置 |
JP2002052702A (ja) * | 2000-08-09 | 2002-02-19 | Mitsubishi Electric Corp | 液滴吐出装置及び液体供給用チューブ |
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US9878536B2 (en) * | 2014-01-24 | 2018-01-30 | President And Fellows Of Harvard College | Acoustophoretic printing apparatus and method |
WO2018022513A1 (en) * | 2016-07-27 | 2018-02-01 | President And Fellows Of Harvard College | Apparatus and method for acoustophoretic printing |
KR102161544B1 (ko) | 2019-12-20 | 2020-10-05 | 한국기계연구원 | 액적 토출 장치 및 액적 토출 방법 |
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Patent Citations (4)
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KR101087315B1 (ko) | 2003-10-07 | 2011-11-25 | 소니 주식회사 | 액체 토출 장치 |
JP2011201169A (ja) * | 2010-03-25 | 2011-10-13 | Seiko Epson Corp | 液体噴射ヘッド、液体噴射ヘッドユニット及び液体噴射装置 |
JP2012113137A (ja) * | 2010-11-25 | 2012-06-14 | Ricoh Co Ltd | トナー製造方法、トナー製造装置及びトナー |
WO2019011674A1 (en) * | 2017-07-12 | 2019-01-17 | Mycronic AB | PROJECTION DEVICES HAVING ACOUSTIC TRANSDUCERS AND METHODS OF CONTROLLING SAME |
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WO2021125687A1 (ko) * | 2019-12-20 | 2021-06-24 | 한국기계연구원 | 액적 토출 장치 및 이를 이용한 액적 토출 방법 |
US12023923B2 (en) | 2019-12-20 | 2024-07-02 | Korea Institute Of Machinery & Materials | Droplet ejection apparatus and droplet ejection method using the same |
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WO2021125687A1 (ko) | 2021-06-24 |
US20220274403A1 (en) | 2022-09-01 |
US12023923B2 (en) | 2024-07-02 |
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