JPS61249770A - Centrifugal ink jetter - Google Patents

Centrifugal ink jetter

Info

Publication number
JPS61249770A
JPS61249770A JP9106685A JP9106685A JPS61249770A JP S61249770 A JPS61249770 A JP S61249770A JP 9106685 A JP9106685 A JP 9106685A JP 9106685 A JP9106685 A JP 9106685A JP S61249770 A JPS61249770 A JP S61249770A
Authority
JP
Japan
Prior art keywords
ink
rotor
gutter
image signal
deflection electrode
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
Application number
JP9106685A
Other languages
Japanese (ja)
Inventor
Katsumi Otsuka
大塚　克巳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KARISU INTANASHIYONARU KK
Original Assignee
KARISU INTANASHIYONARU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KARISU INTANASHIYONARU KK filed Critical KARISU INTANASHIYONARU KK
Priority to JP9106685A priority Critical patent/JPS61249770A/en
Publication of JPS61249770A publication Critical patent/JPS61249770A/en
Pending legal-status Critical Current

Links

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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/20—Ink jet characterised by ink handling for preventing or detecting contamination of compounds
    • 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
    • B41J2/075—Ink jet characterised by jet control for many-valued deflection
    • B41J2/08—Ink jet characterised by jet control for many-valued deflection charge-control type
    • B41J2/09—Deflection means

Abstract

PURPOSE:To make it possible to increase a working speed to a large extent while preventing the clogging of a nozzle, by performing the emission of ink by opening orifices to an outer periphery and selecting ink particles by a deflection electrode. CONSTITUTION:When the number of rotations of a rotor 1 after start comes to a set value and becomes constant, the inner ends 2, 2' of ink passages 3, 3' are introduced into ink by the functions of ink controllers A, A' or the mechanical rising in ink sumps 9, 9'. The ink immediately rises through the ink passages 3, 3' by a capillary phenomenon and the action of a centrifuge to advance outwardly and emitted from orifice opening parts 6, 6' through orifices 4, 4' to be formed into small droplets while parabolic (vertical surface) orbit is drawn on a tangential line (horizontal surface) in air. When the rotor 1 is charged and an image signal surface) in air. When the rotor 1 is charged and an image signal is applied to the deflection electrode 10 in inverse potential, small ink droplets are upwardly deflected and advance so as to fly over gutter guides 7, 7' and a fixed gutter 8.

Description

【発明の詳細な説明】 （Ｍ業上の利用分野） 本発明は従来のインクジェッターを利用している全分野
に利用出来る。即ちコンピューターの出力機器であるド
ツトプリンター、プロッター及びＯＡ機器であるファク
シミリ、テレックス、複写機、あるいは生産機器である
曲面１３］刷機のヘッド等である。更に大型化すること
が可能なので塗装機や、ポスター、看板等の製作機ヘッ
ドとしても利用可能である。DETAILED DESCRIPTION OF THE INVENTION (Fields of Application in M Industry) The present invention can be applied to all fields that utilize conventional ink jetters. That is, they include computer output devices such as dot printers and plotters, OA devices such as facsimile, telex, and copying machines, and production devices such as heads of curved printing presses. Since it can be made larger, it can also be used as a head for painting machines, posters, signboards, etc.

（従来の技術） 従来のインクジェッターとしては、インクに圧力を掛け
てノズルに押し出し、電歪素子や超音波によってノズル
内でＪｌｉ乱を起して、空気中にインクを射出、粒子化
する型式のみであった。(Prior art) Conventional ink jetters are of a type that applies pressure to the ink, pushes it out into the nozzle, causes Jli disturbance in the nozzle using an electrostrictive element or ultrasonic waves, and injects the ink into the air to form particles. It was only.

（発明が解決しようとする問題点） １、　ノズル開口部に耐着インク中での微生物繁殖によ
るノズル目詰り。(Problems to be solved by the invention) 1. Nozzle clogging due to microbial growth in the ink that adheres to the nozzle opening.

２、　温度変化による粘度変化でインク粒子の大きさが
変化すること。2. The size of ink particles changes due to viscosity changes due to temperature changes.

３、　多色インクの表面張力と粘度を同水準とすること
は困難であり、多色化をはばんでいる。3. It is difficult to keep the surface tension and viscosity of multicolor inks at the same level, which hinders the use of multicolor inks.

４、射出後の偏向角が小さい為、横方向の走査を機械的
に行わざるを得ない。4. Since the deflection angle after injection is small, horizontal scanning must be performed mechanically.

（問題を解決する為の手段） オリフィスを回転させることによって、開口部に近い程
見掛けの外向き加速度が大となり、開口部をインクが飛
び出すと直ちに粒子化する。(Means for Solving the Problem) By rotating the orifice, the apparent outward acceleration increases as the ink approaches the opening, and when ink flows out of the opening, it immediately turns into particles.

１、　オリフィス開口部近辺の空気にも見掛は上の外向
き加速度が発生するのと相まって、キャビテイションに
よるインクの耐着が起らない。1. Coupled with the apparent outward acceleration generated in the air near the orifice opening, ink adhesion resistance due to cavitation does not occur.

２．従来のインク粒子化の為の４乱は、インク流体内部
の振動となるので、粘度の影響を−は易かったが、本発
明においては一種の位置エネルギーによって分断するの
で、粒子の大きさは粘度の影響を受け、難い。2. The conventional four disturbances for forming ink particles are vibrations inside the ink fluid, so the influence of viscosity is easily affected, but in the present invention, the particles are divided by a kind of potential energy, so the particle size depends on the viscosity. It is difficult because of the influence of

３、　斜上の理由によって表面張力の影響をも受は難い
ので多色化が簡単となった。3. Because of the slanted surface, it is less susceptible to the effects of surface tension, making it easier to create multiple colors.

４、　回転放射である為水平方向の走査を伴っており、
被記録体は垂直方向に相対移励するだけで良い。4. Since it is a rotating radiation, it involves scanning in the horizontal direction.
The object to be recorded only needs to be relatively moved in the vertical direction.

（作用） 回転体を一定回転数にして、中心附近のインクシ留りを
上昇し、インク通路の内端がインクの中に入ると、毛細
管現象と遠心機の作用によって、インクはインク通路を
通ってオリフィス開口部より放射される。(Function) When the rotating body is set at a constant rotation speed, the ink retainer near the center is raised, and the inner end of the ink passage enters the ink, the ink passes through the ink passage due to capillary action and the action of the centrifuge. and is emitted from the orifice opening.

インクはインク通路、オリフィスと外側に進むに従って
、大きな外向き見掛けの加速度を受けることになり、オ
リフィス開口部を出ると直ちに粒子化する。インク粒子
はオリフィス開口部の円軌道より、接線方向にａｌｌ物
軌道を描いて、次次とガターに飛び込んで行く。As the ink travels outward through the ink passageway and orifice, it is subjected to a large outward apparent acceleration and becomes particulate as soon as it exits the orifice opening. The ink particles draw all trajectories in the tangential direction from the circular orbit of the orifice opening and jump into the gutter one after another.

、　　　回転体に電位を与えておけば、飛狗１インク粒
子が帯電するので、回転体の外側に設けた偏向電極に画
像信号を与えることによって、選択的にガターを飛び越
えて被記録体に達し、回転方向（水平）に順次走査痛点
を形成する。If a potential is applied to the rotating body, the ink particles will be charged, so by applying an image signal to the deflection electrode provided on the outside of the rotating body, they will selectively jump over the gutter and reach the recording medium. , to form sequential scanning pain points in the rotational direction (horizontal).

偏向電極に与える画像信号に段階電位を採れば上下方向
にもある幅で走査出来、ベルト状の走査痛点群が得られ
る。又大型化する場合には、偏向電極の外側に加速電極
を設けて走査面を拡大することも可能である。If a stepped potential is applied to the image signal applied to the deflection electrode, scanning can be performed with a certain width in the vertical direction, and a belt-shaped scanning pain point group can be obtained. In addition, when increasing the size, it is also possible to provide an accelerating electrode outside the deflection electrode to enlarge the scanning surface.

（実施例） 一実施例として、２色インクジェッターに実施したもの
を図によって説明する。（１）は回転体であって中心附
近に内端（２）、（２’）を開口したインク通路（３）
、（３’）と、それに接続したオリフィス（４）、（４
’）を有し、オリフィス（４）　、　（４’）は外周（
５）上に開口して（６）、（６’）となっている。更に
回転体（１）は外力２ケ所にガターガイド（７）、（７
勺を持ち一定数で矢印の向きに回転している。(Example) As an example, a two-color ink jetter will be described with reference to the drawings. (1) is a rotating body and has an ink passage (3) with inner ends (2) and (2') opened near the center.
, (3') and the orifice (4), (4
'), and the orifices (4) and (4') have an outer periphery (
5) Opens upward to form (6) and (6'). Furthermore, the rotating body (1) has gutter guides (7), (7
It holds a peg and rotates at a constant rate in the direction of the arrow.

ガターガイド（７）　、（７）はそれぞれ、全周にわた
る固定ガター（８）　、　（８’）　七対向し、固定ガ
ター（８）、（８１）はインク調整器Ａ。The gutter guides (7), (7) are respectively opposed to the fixed gutter (8), (8') extending over the entire circumference, and the fixed gutter (8), (81) is the ink regulator A.

Ａ′とそれぞれ接続される。（９）及び（９′）はイン
ク噌りであり、それぞれインク調整機Ａ、Ａ’と接続さ
れている。（１０）は偏向電極であり、画像信号によっ
て回転体（１）と逆電位に帯電させる。A' respectively. (9) and (9') are ink reservoirs, which are connected to ink regulators A and A', respectively. (10) is a deflection electrode, which is charged to a potential opposite to that of the rotating body (1) by an image signal.

インク調整器（Ａ）、　（Ａ、　）　　の機能は、イン
ク５習り　（９）、（９’）のインク液面の高さをコン
トロールすることと、ガター＜８）　、　（８’）から
の回収インクに溶媒を添加して粘度をコントロールする
ことであり、図示していないが予備インクタンクと接続
されて消費インクの補給をも行うものである。The function of the ink regulators (A), (A, ) is to control the height of the ink level of the ink 5 lessons (9), (9'), and to control the height of the ink level from the gutter <8), (8'). The viscosity is controlled by adding a solvent to the recovered ink, and although not shown, it is also connected to a reserve ink tank to replenish consumed ink.

スタート時はインク調整器Ａ、Ａによってインク調整器
　（９）　、　（９’）の液面を、インク通路の内端（
２）　、　（２’）よりも下げておくか、あるいは機械
的にインクン菫り　（９）　、　（９’）を下げるかし
て、インク通路（３）　、　（３’）とインクを離して
置く。At the start, ink regulators A and A adjust the liquid level of ink regulators (9) and (9') to the inner end of the ink passage (
2) Separate the ink from the ink passages (3), (3') by keeping them lower than the ink channels (3), (2'), or mechanically lowering the ink conduits (9), (9'). put.

スタートして回転体（１）の回転数が設定値になり一定
すれば、インク調整器Ａ　、、Ａ　’の機能又は機械的
なインク慴り（９）、（９”）の上昇によって、インク
通路の内端（２）、（２′）をインク中に入れる。イン
クは毛細管現象と遠心機の作用によって、直ちにインク
通路（３）、（３ゝ）中を」二昇し外方に進み、オリフ
ィス（４）、　（４’）を経てオリフィス開口部（６）
　、　（６’）より放射され、空気中を小滴となって接
線上（水平面）を雀物線（垂直面）軌道を描く。回転体
（１）の１位置におけるインク小滴の並び方はインボリ
ュート曲線（点線図示）となってガターガイド（７）、
（７’）に達し、固定ガター　（８）、（８’）に案内
される。更にインク調整器Ａ、Ａを経てインク嘲り（９
）、（９’）に戻り循環を続けることになる。When the rotation speed of the rotating body (1) reaches the set value and remains constant after starting, the ink is increased by the function of the ink regulators A,, A' or by increasing the mechanical ink level (9), (9''). The inner ends (2) and (2') of the passages are placed in the ink.The ink immediately rises through the ink passages (3) and (3') and moves outward due to capillary action and the action of the centrifuge. , orifice opening (6) via orifice (4), (4')
, is emitted from (6'), becomes a droplet in the air, and draws a mahjong line (vertical plane) trajectory on a tangent (horizontal plane). The arrangement of ink droplets at one position of the rotating body (1) forms an involute curve (shown by dotted lines), and the gutter guide (7),
(7') and is guided to the fixed gutter (8), (8'). Furthermore, the ink is mocked through the ink regulators A and A (9
), the cycle returns to (9') and continues the cycle.

回転体（１）を帯電し偏向電極（１０）に画像信号を逆
電位で与えると、インク小滴は上方に偏向されガターガ
イド（７）、（７’）及び固定ガター（８）を飛び越え
て進むことになる。When the rotating body (1) is charged and an image signal is applied to the deflection electrode (10) at an opposite potential, the ink droplet is deflected upward and jumps over the gutter guides (7), (7') and the fixed gutter (8). I will move on.

画像信号の開始位置を５１終了位置をＥで示しであるが
被記録体（１１）上ではそれぞれＳＪ。The start position of the image signal is indicated by 51, and the end position is indicated by E, but on the recording medium (11), they are respectively SJ.

の印加は等時間隔でよいが実施例の様に平面の場合や、
曲面印刷の場合には、オリフィス位置によって飛翔巨離
と入射角度が変るので印加間隔を変えねばならない。又
インク粒子の間引きを行う必要がある場合には、回転体
（１）の帯電を周期的に行うことや、飛用巨離を拡大す
る場合に加速電極を用いたり、磁性流体のインクを使用
する場合に電界の代りに磁界を用いることは従来技術と
同じである。may be applied at equal time intervals, but in the case of a flat surface as in the example,
In the case of curved surface printing, the distance of flight and the angle of incidence change depending on the orifice position, so the application interval must be changed. In addition, if it is necessary to thin out ink particles, it is possible to periodically charge the rotating body (1), use an accelerating electrode to increase the flying distance, or use magnetic fluid ink. In this case, using a magnetic field instead of an electric field is the same as in the prior art.

（発明の効果） 力学的に非常に安定なインク小滴を得ると共に、被記録
体を」−１に移動させるだけでキャラクタ−、グラフィ
ック共に記録出来、従来品より大幅なスピードアップが
可能となった。(Effects of the invention) In addition to obtaining dynamically very stable ink droplets, both characters and graphics can be recorded by simply moving the recording object to -1, making it possible to significantly speed up the process compared to conventional products. Ta.

尚従来品では画質を上げる為の小粒化をノズル穴の細密
化で行っていたのでコストが高かったが、本発明におい
ては回転体の回転数を上げるだけで小粒化が可能となり
、ヘッド位置の固定化と相まって、特に多色インクジェ
ッターで大幅なコストダウンとなった。In conventional products, the size of the particles was achieved by making the nozzle holes finer in order to improve the image quality, resulting in high costs, but with the present invention, it is possible to reduce the size of the particles simply by increasing the rotation speed of the rotating body, and the head position can be adjusted. Coupled with fixation, this resulted in significant cost reductions, especially for multicolor inkjetters.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明実施例を示すものであり、第１図は上面図
。第２図中央部は第１図Ｏ−０′線、盪 左右外側は第１図Ｐ−Ｐ線で切断した縦断面図である。 図中 （１）回転体 （２）　、　（２’）インク通路の内端（３）　、　（
３’）インク通路 （４）　、　（４’）オリフィス （５）外周 （６）　、　（６’）オリフィス開口部（７）　、　（
７’）ガターガイド （８）、（８つ）固定ガター （９）、（９’）　インク嘲り （１０）偏向電極 （１１）被記録体The drawings show an embodiment of the present invention, and FIG. 1 is a top view. The central part of FIG. 2 is a longitudinal cross-sectional view taken along the line O-0' in FIG. 1, and the left and right outer parts taken along the line PP in FIG. In the figure (1) the rotating body (2), (2') the inner end of the ink passage (3), (
3') Ink passage (4), (4') Orifice (5) Outer periphery (6), (6') Orifice opening (7), (
7') Gutter guide (8), (8) Fixed gutter (9), (9') Ink mocking (10) Deflection electrode (11) Recorded object

Claims (1)

【特許請求の範囲】[Claims] 回転体の中心附近からインク通路を外周に向って設け、
外周にオリフィスを開口してインク放射を行い、偏向電
極によってインク粒子選択することを特徴とするインク
ジェッター。An ink passage is provided from near the center of the rotating body toward the outer periphery,
An ink jetter characterized by emitting ink by opening an orifice on the outer periphery and selecting ink particles by a deflection electrode.
JP9106685A 1985-04-30 1985-04-30 Centrifugal ink jetter Pending JPS61249770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9106685A JPS61249770A (en) 1985-04-30 1985-04-30 Centrifugal ink jetter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9106685A JPS61249770A (en) 1985-04-30 1985-04-30 Centrifugal ink jetter

Publications (1)

Publication Number Publication Date
JPS61249770A true JPS61249770A (en) 1986-11-06

Family

ID=14016124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9106685A Pending JPS61249770A (en) 1985-04-30 1985-04-30 Centrifugal ink jetter

Country Status (1)

Country Link
JP (1) JPS61249770A (en)

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