JPS6364755A - Recording head - Google Patents
Recording headInfo
- Publication number
- JPS6364755A JPS6364755A JP20948386A JP20948386A JPS6364755A JP S6364755 A JPS6364755 A JP S6364755A JP 20948386 A JP20948386 A JP 20948386A JP 20948386 A JP20948386 A JP 20948386A JP S6364755 A JPS6364755 A JP S6364755A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle plate
- tip
- nozzle
- case
- ejected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002245 particle Substances 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
- B41J2/14274—Structure of print heads with piezoelectric elements of stacked structure type, deformed by compression/extension and disposed on a diaphragm
-
- 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
- B41J2002/14362—Assembling elements of heads
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、記録ヘッドに係シ、％にインクジェットプリ
ンタの記録ヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording head, and particularly relates to a recording head for an inkjet printer.
従来のインクジェットプリンタにおいては特開昭５９−
１９８１５９号に記載のように、オンデマンド型印字ヘ
ッドはカセットにヘッドユニットを着脱自在、もしくは
固定構造とした圧電素子を駆動させてインク粒の演出を
行うものである。In conventional inkjet printers, Japanese Patent Application Laid-open No. 59-
As described in No. 198159, the on-demand print head produces ink droplets by driving a piezoelectric element in which the head unit is detachable or fixed to a cassette.
従来のインクジェット用ヘッドユニットを第５図、第６
図に示す。１は一般的にはガラスで作るノズルであり、
２はピエゾ圧電素子である。３はインク吸込バイブであ
シ、４はインクである。５はケースである。ピエゾ圧電
索子２の振動によりインク４ｔ−吸込バイブ３から吸込
んでノズル噴出口６より噴出させる。Figures 5 and 6 show conventional inkjet head units.
As shown in the figure. 1 is a nozzle that is generally made of glass,
2 is a piezoelectric element. 3 is an ink suction vibrator, and 4 is ink. 5 is a case. Vibration of the piezoelectric cord 2 causes ink 4t to be sucked in from the suction vibrator 3 and ejected from the nozzle ejection port 6.
上記従来技術は、ノズルの交換ができないため印字ヘッ
ドに使用されるインクの噴出粒の粒径が一定となり、画
一的な印字しかできなかった。In the above-mentioned conventional technology, since the nozzle cannot be replaced, the diameter of the ejected ink droplets used in the print head is constant, and only uniform printing can be performed.
本発明の目的はノズルを交換可能としインクの噴出粒の
粒径を自由に変えることができる記録ヘッドを提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a recording head in which the nozzles are replaceable and the diameter of ejected ink particles can be freely changed.
上記目的はケース先端に密着する如く配置されたノズル
板と、上記ノズル板のほぼ中央でかつ上記ケース先端と
同一中心となる位置に設けられた略円錐状のノズルとか
らなり、上記ノズル板は上記ケース先端に対し着脱自在
とすることにより達成される。The above object consists of a nozzle plate arranged so as to be in close contact with the tip of the case, and a substantially conical nozzle provided at approximately the center of the nozzle plate and at the same center as the tip of the case. This is achieved by making it detachable from the tip of the case.
ノズル板を交換できるようにしているため、大径の噴出
口径を必要とする場合は対応するノズルを使用し、小径
の噴出口径を必要とする場合では対応するノズルを使用
し噴出するノズルの口径を小さくすることができる。The nozzle plate is replaceable, so if you need a large jet orifice diameter, use the corresponding nozzle, and if you need a small jet orifice diameter, use the corresponding nozzle. can be made smaller.
以下本発明の一実施例を第１ａ、第２図、第３図により
説明する。７は吐出管であり、８はピエゾ圧電素子、９
は平板状のノズル板ではＶ中央に円すい状の両面に貫通
した噴出口であるノズル１０を設けている。An embodiment of the present invention will be described below with reference to FIGS. 1a, 2, and 3. 7 is a discharge pipe, 8 is a piezoelectric element, 9
In the flat nozzle plate, a nozzle 10, which is a conical ejection port penetrating both sides, is provided at the center of the V.
１１はインク吸込み管、１２はケース、１３はインクで
ある。ピエゾ圧電素子８が振動するとインク１３は吸込
管１１を通って吐出管７に入りノズル１０より噴出する
。噴出する動作は従来品と同様である。本発明の記録ヘ
ッドは吐出管先端１４にノズル板９を設け、該ノズル板
９をケース先端部の内側面１５内に挿入し吐出管先端１
４と密着するように嵌合させる。ノズル板９とケース先
端の内側面１５との嵌合はケース先端内側面１５の開口
寸法とノズル板９の外形寸法とはｙ同一寸法としてガタ
なく嵌合されるように形成しである。さらに、ケース先
端内側面１５の一部に突起１５ａｔ−ノズル板９に対し
て上下１個ずつ設けてノズル板９を固定している。該突
起１５ａはピエゾ圧電素子８の振動する圧力に極〈わず
か祷る程度の小さな大きさである。またノズル板９を取
外す場合はノズル板９の一部を押すことによりケース先
端内側面１５の奥側に溝１５ｂが設けであるからノズル
板９は破線の如く傾向き他方の該突起１５ａから外れケ
ース先端内側面１５より飛び出るものである。よって、
ノズル板９の取り付け、取り外しが容易になるようにし
である。本実施例においては第３図に示した如く、複数
の記録ヘッドについて個々のノズルが個々の記録ヘッド
に対応する方式となっている。11 is an ink suction pipe, 12 is a case, and 13 is ink. When the piezoelectric element 8 vibrates, the ink 13 passes through the suction pipe 11, enters the discharge pipe 7, and is ejected from the nozzle 10. The ejecting action is the same as the conventional product. In the recording head of the present invention, a nozzle plate 9 is provided at the tip 14 of the discharge tube, and the nozzle plate 9 is inserted into the inner surface 15 of the tip of the case.
4 so that it fits tightly. The fitting between the nozzle plate 9 and the inner surface 15 of the case tip is such that the opening size of the case tip inner surface 15 and the outer dimension of the nozzle plate 9 are the same size, so that they fit together without play. Furthermore, the nozzle plate 9 is fixed by providing protrusions 15 at a portion of the inner surface 15 of the case tip, one each on the upper and lower sides of the nozzle plate 9. The protrusion 15a has a small size that is only slightly affected by the vibrating pressure of the piezoelectric element 8. In addition, when removing the nozzle plate 9, by pushing a part of the nozzle plate 9, a groove 15b is provided on the back side of the inner surface 15 of the tip of the case, so the nozzle plate 9 tends to be removed from the other protrusion 15a as shown by the broken line. It protrudes from the inner surface 15 of the case tip. Therefore,
This is done so that the nozzle plate 9 can be easily attached and removed. In this embodiment, as shown in FIG. 3, a system is adopted in which each nozzle corresponds to a plurality of recording heads.
他の実施例を示した第４図は複数のノズルを１個のノズ
ル板に設けたものであり、各ノズル間の間隔寸法が高い
精度を得ることが出来るものである。FIG. 4 showing another embodiment is one in which a plurality of nozzles are provided on one nozzle plate, and it is possible to obtain high accuracy in the spacing between each nozzle.
本発明によれば、ノズル１０の噴出ロ径ノ違うノズル板
１０に変えることが可能となり、インクの噴出粒の粒径
を自由に変えられる効果がある。According to the present invention, it is possible to change to a nozzle plate 10 with a different ejection diameter of the nozzle 10, and there is an effect that the particle diameter of ejected ink particles can be freely changed.
第１図は本発明の記録ヘッドの断面図、第２図は第１図
の要部拡大断面図、第３図、第４図は本発明の他の事例
を示す要部拡大図、第５図は従来の記録ヘッドの断面図
、第６図は第５図の要部拡大断面図である。
ｌ・・・ノズル、２・・・圧成素子、３・・・インク吸
込管、４・・・インク、５・・・ケース、６・・・イン
ク噴出口、７・・・吐出管、８・・・ピエゾ圧電素子、
９・・・平板状、ノズル板、１０・・・略円錐状の噴出
口のノズル、１１・・・イ／り吸込管、１２・・・ケー
ス、１３・・・インク、１４・・・吐出管先端、１５・
・・ケース先端のインク噴出部周辺でノズル１０を保持
固定する内側面、１５ａ・・・突起、１５ｂ・・・ケー
ス先端の奥面にある溝。
代理人 弁理士 小川１勝男゛′、
１１・・ イ〉り１＆１針
１２ デー人
１３・４〉７
ｔ４− シ土本管ギＬ号暢
裕３ 図
ｑ、、、 ／ズルキ（
ＩＱ−）又゛ルFIG. 1 is a sectional view of a recording head of the present invention, FIG. 2 is an enlarged sectional view of the main part of FIG. 1, FIGS. 3 and 4 are enlarged views of the main part showing other examples of the invention, and FIG. The figure is a sectional view of a conventional recording head, and FIG. 6 is an enlarged sectional view of the main part of FIG. 5. l... Nozzle, 2... Compression element, 3... Ink suction pipe, 4... Ink, 5... Case, 6... Ink ejection port, 7... Discharge pipe, 8 ...Piezoelectric element,
9... Flat plate, nozzle plate, 10... Nozzle with substantially conical ejection port, 11... I/I suction pipe, 12... Case, 13... Ink, 14... Discharge Tube tip, 15.
...Inner surface for holding and fixing the nozzle 10 around the ink ejection part at the tip of the case, 15a...protrusion, 15b...groove on the back surface of the tip of the case. Agent Patent attorney Katsuo Ogawa ゛', 11... I〉ri 1 & 1 needle 12 Date person 13.4〉7 t4- Shidohonkan Gi L Nobuhiro 3 Figure q,.../Zuruki (IQ-) and ゛le
Claims (1)
上記ノズル板のほゞ中央でかつ上記ケース先端と同一中
心となる位置に設けられた略円錐状のノズルとからなり
、上記ノズル板は上記ケース先端に対して着脱自在であ
ることを特徴とする記録ヘッド。1. A nozzle plate arranged so as to be in close contact with the tip of the case,
It consists of a substantially conical nozzle provided approximately in the center of the nozzle plate and at a position co-centered with the tip of the case, and the nozzle plate is characterized in that it is detachable from the tip of the case. recording head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20948386A JPS6364755A (en) | 1986-09-08 | 1986-09-08 | Recording head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20948386A JPS6364755A (en) | 1986-09-08 | 1986-09-08 | Recording head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6364755A true JPS6364755A (en) | 1988-03-23 |
Family
ID=16573580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20948386A Pending JPS6364755A (en) | 1986-09-08 | 1986-09-08 | Recording head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6364755A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0533355A2 (en) * | 1991-09-20 | 1993-03-24 | Brother Kogyo Kabushiki Kaisha | Droplet ejecting device |
| WO1994016899A1 (en) * | 1993-01-27 | 1994-08-04 | Domino Printing Sciences Plc | Ink jet printer nozzle assembly |
| EP0703082A2 (en) * | 1994-09-23 | 1996-03-27 | Compaq Computer Corporation | Removable orifice plate for ink jet printhead and securing apparatus |
| EP1177897A1 (en) * | 2000-08-01 | 2002-02-06 | Agfa-Gevaert N.V. | A droplet deposition apparatus with releasably attached nozzle plate |
| EP1640166A1 (en) * | 2004-09-28 | 2006-03-29 | Pelikan Hardcopy Production AG | Method of ink-jet printhead renovation and ink-jet printhead renovated |
| JP2006336094A (en) * | 2005-06-06 | 2006-12-14 | Jfe Steel Kk | Apparatus and method for charging raw material into blast furnace |
-
1986
- 1986-09-08 JP JP20948386A patent/JPS6364755A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0533355A2 (en) * | 1991-09-20 | 1993-03-24 | Brother Kogyo Kabushiki Kaisha | Droplet ejecting device |
| US5396272A (en) * | 1991-09-20 | 1995-03-07 | Brother Kogyo Kabushiki Kaisha | Droplet ejecting device |
| WO1994016899A1 (en) * | 1993-01-27 | 1994-08-04 | Domino Printing Sciences Plc | Ink jet printer nozzle assembly |
| EP0703082A2 (en) * | 1994-09-23 | 1996-03-27 | Compaq Computer Corporation | Removable orifice plate for ink jet printhead and securing apparatus |
| EP0703082A3 (en) * | 1994-09-23 | 1996-12-27 | Compaq Computer Corp | Removable orifice plate for ink jet printhead and securing apparatus |
| EP1177897A1 (en) * | 2000-08-01 | 2002-02-06 | Agfa-Gevaert N.V. | A droplet deposition apparatus with releasably attached nozzle plate |
| WO2002009943A1 (en) | 2000-08-01 | 2002-02-07 | Agfa-Gevaert | A droplet deposition apparatus with releasably attached nozzle plate |
| EP1640166A1 (en) * | 2004-09-28 | 2006-03-29 | Pelikan Hardcopy Production AG | Method of ink-jet printhead renovation and ink-jet printhead renovated |
| JP2006336094A (en) * | 2005-06-06 | 2006-12-14 | Jfe Steel Kk | Apparatus and method for charging raw material into blast furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3183760B2 (en) | Ink container, inkjet recording head, inkjet cartridge, and inkjet recording apparatus | |
| JP3255528B2 (en) | Ink jet device | |
| JPH01257058A (en) | Ink jet head | |
| JPH01115639A (en) | Ink jet recording head | |
| JPS61215059A (en) | Ink jet recording apparatus | |
| JPS6364755A (en) | Recording head | |
| JP2002103573A (en) | Ink jet recorder | |
| JPS5998860A (en) | Ink jet head | |
| JPH022004A (en) | Ink jet head | |
| JPS6327266A (en) | Printing head | |
| JP2001191518A (en) | Ink jet head | |
| JP3608319B2 (en) | Printer and ink tank | |
| JPH023321A (en) | Ink cartridge | |
| JP2006035536A (en) | Liquid ejection head, head cartridge, inkjet recording apparatus, and chemical agent suction device | |
| JPH06286143A (en) | Ink jet recorder | |
| JPS6337709B2 (en) | ||
| JPH02209245A (en) | Printing device | |
| JPS591800Y2 (en) | Inkjet printer deflection electrode | |
| JP3757781B2 (en) | Inkjet recording device | |
| JPH0764057B2 (en) | Inkjet recording device | |
| JP2003072053A (en) | Inkjet recorder | |
| JPS58114963A (en) | Ink jet head | |
| JPS592854A (en) | Ink jet printer | |
| JPH01145155A (en) | Ink jet recording apparatus | |
| JPH08252913A (en) | Liquid jet apparatus and method |