JPS60259456A - Ink jet head - Google Patents
Ink jet headInfo
- Publication number
- JPS60259456A JPS60259456A JP11547784A JP11547784A JPS60259456A JP S60259456 A JPS60259456 A JP S60259456A JP 11547784 A JP11547784 A JP 11547784A JP 11547784 A JP11547784 A JP 11547784A JP S60259456 A JPS60259456 A JP S60259456A
- Authority
- JP
- Japan
- Prior art keywords
- laminate
- nozzle
- plate
- face
- sides
- 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
- 238000010030 laminating Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
Landscapes
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、オンディマント型インクジェット記録方式に
用いられるインクジェットに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inkjet used in an on-demand inkjet recording method.
オンディマント製インクジェットはマルチノズルに構成
することが容易であシ装置構成も簡単になる゛ととから
注目をあびている。しかし、現在、密にマルチノズルを
構成し精度の高いヘッドを入手すること社困難である。On-demand inkjet is attracting attention because it is easy to configure into a multi-nozzle system and the device configuration is also simple. However, it is currently difficult to obtain a highly accurate head with a densely arranged multi-nozzle structure.
それＬ１従来多くのこの種のヘッドの作シ方はインク滴
を得るためのインク供給管路をエツチング等の方法によ
シ作成しそれらの積層板を多層に接着積層してヘッドに
仕上げているのがほとんどである。L1 Conventionally, the method of making many heads of this type is to create the ink supply conduit for obtaining ink droplets by etching or other methods, and then glue and laminate these laminated plates in multiple layers to finish the head. Most of them are.
積層する時ノズル先端部とを均一にそろえることが困難
で各積層板を接着後その先端を研磨等の機械加工によシ
、仕上げている。この機械加工によシノズル穴部にパリ
、ノズルつまシが生じてインク滴がうまく噴出せず、い
わゆるヘッドの良品率が悪かった。以下その具体例につ
き説明する。従来のヘッドはノズルの管路を形成する中
央の−の積層板を両サイドの一対の積層板ではさんで構
成する時、各積層板の端面をそろえて、一平面になるよ
うに接着はシ合せただけでなく、接着後に同一面レベル
を得るためにさらに機械加工をしてそろえている。この
時、機械加工で各積層板から発生するパリや、切りズが
ノズル内へ混入して目づまシ等の障害が発生し、マルチ
ノズル全体の均一性を得ることは困難であった。当然マ
ルチノズルの数を増したシ、ノズル径を小さくするとま
すます困難になるという欠点があった。When stacking, it is difficult to align the tips of the nozzles uniformly, so after bonding each laminate, the tips are finished by mechanical processing such as polishing. This machining process resulted in cracks and nozzle blobs in the nozzle holes, which prevented ink droplets from being ejected properly, resulting in a poor yield rate of heads. Specific examples thereof will be explained below. When a conventional head is constructed by sandwiching a central laminate plate forming the nozzle conduit between a pair of laminate plates on both sides, the end surfaces of each laminate plate are aligned and glued in a single plane. Not only are they aligned, but they are also machined to ensure that they are on the same level after gluing. At this time, particles and chips generated from each laminate during machining get mixed into the nozzle, causing problems such as clogging, making it difficult to obtain uniformity throughout the multi-nozzle. Naturally, there was a drawback that increasing the number of multi-nozzles and decreasing the nozzle diameter made it even more difficult.
本発明の目的は、ノズル管路を形成した中央の積層板の
端面と両サイドの積層板の端面との間に段差を形成して
、機械加工を容易にするとともに、ノズルでのパリ、目
づｔｂの発生を抑え、ヘッドの良品率を向上して上記欠
点を除去したインクジェットを提供することを目的とす
〔発明の構成〕
そのための本発明の構成は、インクジェット用のノズル
用管路が形成された積層板を積層してオンディマント型
インクジェット記録に用いられるインクジェットヘッド
において、ノズル用管路を形成した第１の積層板と、該
第１の積層板を両サイドからはさんで積層されノズルを
構成せしめる第２の積層板とよシなシ、該第１の積層板
の該ノズル側の端面を該第２の積層板の端面よシ一定量
沈ませて段差を設けた構成としたものである。An object of the present invention is to form a step between the end face of the central laminated plate forming the nozzle conduit and the end faces of the laminated plates on both sides to facilitate machining and to prevent cracks and eyes in the nozzle. It is an object of the present invention to provide an inkjet in which the above-mentioned drawbacks are eliminated by suppressing the occurrence of ztb and improving the yield rate of heads. In an inkjet head used for on-demand inkjet recording by laminating the formed laminates, a first laminate with a nozzle conduit formed thereon, and a nozzle that is laminated with the first laminate sandwiched from both sides. A second laminate plate, which is different from the second laminate plate, has a structure in which the end face of the first laminate plate on the nozzle side is sunk a certain amount from the end face of the second laminate plate to provide a step. It is.
次に、その一実施例につき図面と共に説明する。 Next, one embodiment thereof will be described with reference to the drawings.
第１図（４）、ノ）は夫々本発明に係るインクジェット
の一実施例の横断面図及び同図回申、八−Ａ線に沿う縦
断矢視図、第２図はその斜視図である。FIGS. 1(4) and 1) are a cross-sectional view and a longitudinal sectional view taken along line 8-A of the inkjet according to the present invention, respectively, and FIG. 2 is a perspective view thereof. .
図中、インクジェットヘッドは、ノズル管路を形成する
第１の積層板１と、これを両サイドからはさんでノズル
ｌａ、ｌｂを構成させる一対の第２の積層板２ａ、２ｂ
とからなる。このとき積層板１のノズルｌａ、ｌｂ側の
端面は両サイド積層板２ａ 、２ｂの端面から所定寸法
看沈んで段差が設けられている。In the figure, the inkjet head includes a first laminated plate 1 forming a nozzle conduit, and a pair of second laminated plates 2a and 2b sandwiching this from both sides to form nozzles la and lb.
It consists of At this time, the end face of the laminated plate 1 on the side of the nozzles la and lb is stepped by a predetermined distance from the end face of the both side laminated plates 2a and 2b.
従って、接着後、ノズルｌａ、ｌｂ側の端面を機械加工
するとき、機械加工されるのは両サイド積層板２ａ、２
ｂのみであるため機械加工は容易となる。又当然ながら
、パリ発生は両サイド積層板２ａ、２ｂのみと７！ｉ：
力発生しても容易に取シ途〈ことが可能となる。又、目
ずまシとなる要素も少なくなる。Therefore, when machining the end faces on the nozzle la and lb sides after adhesion, the machined parts are the two side laminates 2a and 2.
Since there is only b, machining is easy. Naturally, paris occurs only in the laminated plates 2a and 2b on both sides and 7! i:
Even if force is generated, it can be easily removed. Also, there are fewer elements that cause blemishes.
本発明の実施によれば、ノズル管路を形成する積層板１
の端面と両サイド積層板２ａ、２ｂの端面との段差は少
なければ少ないほど良いことは明らかであるが、ノズル
ｌａ、ｌｂ巾位の段差は従来のノズル形状、圧力発生室
の形状等の変更なくして、十分に実用化できる。According to the implementation of the invention, the laminated plate 1 forming the nozzle conduit
It is clear that the smaller the difference in level between the end face of the laminate and the end face of both side laminates 2a and 2b, the better. It can be fully put into practical use without it.
又、この両サイド積層板２Ｂ 、２ｂの間の段差の部分
にインクを充填して使用することも可能であシ、ノズル
の背後にある圧力室の圧力を上げることにより、さらに
良い結果を得られる場合がある。この時は段差部分のイ
ンク溜にインクを充満せしめるためにインクが自動供給
できるようなバイパス配管を設ける必要があるが、これ
も容易に作シ得る。It is also possible to fill the step between the two side laminates 2B and 2b with ink, and by increasing the pressure in the pressure chamber behind the nozzle, even better results can be obtained. There may be cases where At this time, it is necessary to provide a bypass pipe that can automatically supply ink to fill the ink reservoir in the stepped portion with ink, but this can also be easily accomplished.
以上説明した如く、本発明に係るインクジェットによれ
ば、ノズル管路を形成した中央の積層板の端面ど両サイ
ドの積層板の端面との間に段差を形成しているため、端
面の機械加工時には両サイドの積層板を加工するのみで
よく、機械加工を容易にするとともに、ノズルでのパリ
、目づまりの発生を抑え、ヘッドの良品率を向上しうる
という利点がある。As explained above, according to the inkjet according to the present invention, since a step is formed between the end face of the central laminate plate forming the nozzle conduit and the end faces of the laminate plates on both sides, the end face can be machined. Sometimes, it is only necessary to process the laminates on both sides, which has the advantage of facilitating machining, suppressing the occurrence of nozzles and clogging, and improving the yield rate of heads.
第１図（ト）、 ＣＢ）は夫々本発明に係るインクジェ
ットの一実施例の横断面図及び同図回申、Ａ−Ａ線に沿
う縦断矢視図、第２図はその斜視図である。
１・・・第１の積層板 １ａ、ｌｂ・・・ノズル２ａ
、 ２ｂ・・・第２の積層板
出願人 日本電気株式会社
□
第 １ 因
（Ａｌ
（Ｂ）
第２図FIGS. 1(g) and CB) are a cross-sectional view and a circular view of an embodiment of an inkjet according to the present invention, a longitudinal sectional view taken along line A-A, and FIG. 2 is a perspective view thereof. . 1... First laminate plate 1a, lb... Nozzle 2a
, 2b...Second laminate applicant NEC Corporation □ First cause (Al (B) Fig. 2
Claims (1)
積層してオンディマント型インクジェット記録に用いら
れるインクジェットヘッドにおいて、ノズル用管路を形
成した第１の積層板と、該第１の積層板を両サイドから
伏さんで積層されノズルを構成せしめる第２の積層板と
よりｈｂ、該第１の積層板の該ノズル側の端面を該第２
の積層板の端面よシ一定量沈ませて段差を設けた構成と
してなることを特徴とするインクジェット。In an inkjet head used for on-demand inkjet recording by laminating laminated plates each having a nozzle conduit formed therein, a first laminated plate having a nozzle conduit formed thereon, and both the first laminated plate A second laminate plate is stacked face down from the side to form a nozzle, and an end surface of the first laminate plate on the nozzle side is connected to the second laminate plate.
An ink jet characterized by having a structure in which a step is provided by sinking a certain amount from the end surface of the laminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11547784A JPS60259456A (en) | 1984-06-07 | 1984-06-07 | Ink jet head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11547784A JPS60259456A (en) | 1984-06-07 | 1984-06-07 | Ink jet head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60259456A true JPS60259456A (en) | 1985-12-21 |
Family
ID=14663492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11547784A Pending JPS60259456A (en) | 1984-06-07 | 1984-06-07 | Ink jet head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60259456A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146633A (en) * | 1978-05-10 | 1979-11-16 | Hitachi Ltd | Nozzle head for ink-jet recording |
| JPS55158981A (en) * | 1979-05-29 | 1980-12-10 | Seiko Epson Corp | Manufacturing of ink jet head |
| JPS57115355A (en) * | 1981-01-09 | 1982-07-17 | Canon Inc | Ink jet head |
| JPS5836459A (en) * | 1981-08-28 | 1983-03-03 | Hitachi Ltd | Manufacture of liquid drops injecting device |
-
1984
- 1984-06-07 JP JP11547784A patent/JPS60259456A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146633A (en) * | 1978-05-10 | 1979-11-16 | Hitachi Ltd | Nozzle head for ink-jet recording |
| JPS55158981A (en) * | 1979-05-29 | 1980-12-10 | Seiko Epson Corp | Manufacturing of ink jet head |
| JPS57115355A (en) * | 1981-01-09 | 1982-07-17 | Canon Inc | Ink jet head |
| JPS5836459A (en) * | 1981-08-28 | 1983-03-03 | Hitachi Ltd | Manufacture of liquid drops injecting device |
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