JPH078576B2 - Inkjet head - Google Patents
Inkjet headInfo
- Publication number
- JPH078576B2 JPH078576B2 JP60266493A JP26649385A JPH078576B2 JP H078576 B2 JPH078576 B2 JP H078576B2 JP 60266493 A JP60266493 A JP 60266493A JP 26649385 A JP26649385 A JP 26649385A JP H078576 B2 JPH078576 B2 JP H078576B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- orifice plate
- orifice
- holes
- nozzle
- 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.)
- Expired - Lifetime
Links
- 230000001070 adhesive effect Effects 0.000 claims description 26
- 239000000853 adhesive Substances 0.000 claims description 25
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 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
- B41J2/16—Production of nozzles
- B41J2/162—Manufacturing of the nozzle plates
-
- 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
- B41J2/16—Production of nozzles
-
- 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
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1623—Manufacturing processes bonding and adhesion
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
【発明の詳細な説明】 技術分野 本発明は、インクジェット記録装置のインクジェットヘ
ッドにおけるオリフィスプレートに関する。TECHNICAL FIELD The present invention relates to an orifice plate in an inkjet head of an inkjet recording apparatus.
従来技術 第６図は、従来のオリフィスプレート接合部の構造を示
した図で、図中、１は薄層のオリフィスプレートで、該
オリフィスプレート１には薄くスライスされたガラスチ
ューブ２が埋め込まれており、各ガラスチューブ２には
インクジェットノズルを形成する孔３が設けられてい
る。このノズルプレート１は、ガラスチューブ２より小
さく、ノズル孔３より大きな孔４を有する基板５に接着
剤６により接合されている。この接合は、図示のよう
に、ノズルプレート１と基板５との接合部のエッジに沿
ってエポキシ樹脂等の流動性の接着剤６を置き、毛管現
象によってこれらノズルプレート１と基板５との接合部
ギャップ７を通してノズルプレートと基板との接合面に
浸透させてノズルプレート１と基板５とを接合するもの
である。しかし、上記方法では、接着剤の置き方が難し
く、仮りに、毎回、精度よくその重量を測定しながら行
ったとしても、オリフィスプレートのエッジ部につく接
着剤の微妙な違いにより、定量化された接着剤のかなり
の量がオリフィスプレートと基板の界面に浸透したり、
あるいは、ほとんど浸透しないで無駄になったり（接着
に寄与しない）している。それ故、作業に再現性がな
く、ある時は、浸透しすぎてオリフィスをつまらせた
り、又、ある時は、浸透不充分のために、充分な接着効
果が得られないということが生じている。2. Description of the Related Art FIG. 6 is a view showing a structure of a conventional orifice plate joint portion, in which 1 is a thin layer orifice plate, and a thin sliced glass tube 2 is embedded in the orifice plate 1. Each glass tube 2 is provided with a hole 3 that forms an inkjet nozzle. The nozzle plate 1 is bonded with an adhesive 6 to a substrate 5 having a hole 4 smaller than the glass tube 2 and larger than the nozzle hole 3. In this bonding, as shown in the drawing, a fluid adhesive 6 such as an epoxy resin is placed along the edge of the bonded portion between the nozzle plate 1 and the substrate 5, and the nozzle plate 1 and the substrate 5 are bonded by capillary action. The nozzle plate 1 and the substrate 5 are joined by permeating the joining surface between the nozzle plate and the substrate through the partial gap 7. However, in the above method, it is difficult to place the adhesive, and even if it is performed while measuring the weight accurately each time, it is quantified by the subtle difference in the adhesive attached to the edge of the orifice plate. A significant amount of adhesive penetrates into the interface between the orifice plate and the substrate,
Alternatively, it is hardly permeated and is wasted (does not contribute to adhesion). Therefore, the work is not reproducible, sometimes it penetrates too much and chokes the orifice, and sometimes it is not possible to obtain a sufficient adhesive effect due to insufficient penetration. There is.
目 的 本発明は、上述のごとき実情に鑑みてなされたもので、
特に、接着剤を用いるオリフィスプレートの接合方法に
おいて、均一な接着層を再現性よく形成するようにした
オリフィスプレートを提供することを目的としてなされ
たものである。The present invention was made in view of the above-mentioned actual circumstances,
In particular, it is an object of the present invention to provide an orifice plate in which a uniform adhesive layer is formed with good reproducibility in a method of joining orifice plates using an adhesive.
構 成 本発明は、上記目的を達成するために、インクを噴射す
るためのオリフィスと貫通開口とを形成したオリフィス
プレートと、該オリフィスプレートが接着されるヘッド
本体とよりなるインクジェットヘッドにおいて、前記オ
リフィスプレートとヘッド本体とを接触せしめ、前記貫
通開口から接着剤を注入し、前記オリフィスプレートと
ヘッド本体との間に毛管現象を利用して前記接着剤を浸
透させ、前記オリフィスプレートとヘッド本体との間に
接着剤層を形成したことを特徴としたものである。以
下、本発明の実施例に基づいて説明する。In order to achieve the above object, the present invention provides an ink jet head comprising an orifice plate having an orifice for ejecting ink and a through opening, and a head body to which the orifice plate is adhered. The plate and the head main body are brought into contact with each other, an adhesive is injected from the through opening, and the adhesive is permeated between the orifice plate and the head main body by utilizing a capillary phenomenon between the orifice plate and the head main body. It is characterized in that an adhesive layer is formed between them. Hereinafter, description will be given based on examples of the present invention.
第１図は、本発明による接合方法を説明するための図
で、図中、10はオリフィスプレート、11はインク流を噴
射するためのオリフィス（ノズル）、12は該オリフィス
プレート10を基板20に接合するための穴で、本発明にお
いては、オリフィスプレート10には、少なくとも１つ以
上の穴12が形成されており、その穴の部分に定量化され
た接着剤を置くことにより、浸透する接着剤の量を規定
することができ、いつも、同じ品質の接着層を得ること
ができる。FIG. 1 is a view for explaining a joining method according to the present invention, in which 10 is an orifice plate, 11 is an orifice (nozzle) for ejecting an ink flow, and 12 is the orifice plate 10 on a substrate 20. In the present invention, at least one or more holes 12 are formed in the orifice plate 10 for joining, and a penetrating adhesive is obtained by placing a quantified adhesive in the hole portion. The amount of agent can be defined and always the same quality adhesive layer can be obtained.
第２図乃至第４図は、それぞれ前述のごとくして貫通穴
12内に接着剤15を置いてオリフィスプレート10と基板20
とを接合した場合の例を示す図で、各図とも（Ａ）図は
平面図、（Ｂ）図は（Ａ）図のＢ−Ｂ線断面図で、第２
図は、接合が良好に行われている例、第３図及び第４図
は、接合が不良の場合の例を示す図で、第３図の場合、
Ｄ領域において接合が行われていない。ここで重要なこ
とは、穴の大きさと、接着剤の量である。穴の役割は、
毛管現象で浸透していく接着剤の浸透開始時のエリアを
規定することであり、第３図に示すように、穴12の大き
さに対して接着剤15の量が少ない場合には、穴を設けた
効果はなく、前記従来技術と同じく接着層の品質は再現
性がない。第２図に示した例のように、置かれた接着剤
15が穴12の内周すべてにゆきわたる穴の大きさと接着剤
の量の関係にする必要がある。又、第４図のように、接
着剤15がオリフィスプレート10の上にあふれるような場
合があるが、この場合も、穴が接着剤の浸透開始時のエ
リアを規定できないので効果はない。なお、第１図に
は、インク滴を噴射するノズル孔11が多数あるマルチノ
ズルの例を示しているが、本発明は、第５図に示すよう
なノズル孔11が１筒のシングルノズルにも適用可能であ
ることは容易に理解できよう。2 to 4 show through holes as described above.
Orifice plate 10 and substrate 20
FIGS. 2A and 2B are diagrams showing an example in the case where and are joined, in each of which FIG. 2A is a plan view and FIG. 2B is a sectional view taken along line BB in FIG.
The figure shows an example where the joining is performed well, and FIGS. 3 and 4 are diagrams showing an example where the joining is defective. In the case of FIG. 3,
No joining is performed in the D region. What is important here is the size of the holes and the amount of adhesive. The role of the hole is
The purpose is to define the area at the beginning of permeation of the adhesive that permeates by capillarity. As shown in FIG. 3, when the amount of adhesive 15 is smaller than the size of hole 12, There is no effect provided by the above, and the quality of the adhesive layer is not reproducible as in the prior art. Adhesive placed as in the example shown in FIG.
It is necessary to make the relationship between the size of the hole and the amount of adhesive that 15 spreads over the entire inner circumference of the hole 12. Also, as shown in FIG. 4, the adhesive 15 may overflow onto the orifice plate 10, but in this case as well, it is not effective because the hole cannot define the area at the beginning of permeation of the adhesive. It should be noted that FIG. 1 shows an example of a multi-nozzle having a large number of nozzle holes 11 for ejecting ink droplets, but in the present invention, the nozzle hole 11 as shown in FIG. It can be easily understood that is also applicable.
また、上記実施例はすべて、丸穴を示したが、本発明の
主旨は、穴の内周によって接着剤の浸透開始時のエリア
を規定することにあるので、他の穴の形状（長穴，角
穴，細長いスリット状の穴等々）であってもよい。又、
穴の形成方法については、ドリル加工，フォトファブリ
ケーションあるいは他の方法等いろいろ考えられる。ま
た、接着剤の定量滴下方法については、すでに市販の装
置で最小0.1μ程度まで再現性よく滴下できるものが
あり、特に難しいことはない。Further, although all of the above-mentioned examples show round holes, the gist of the present invention is to define the area at the start of permeation of the adhesive by the inner circumference of the holes, so the shape of other holes (oblong holes) , Square holes, elongated slit-shaped holes, etc.). or,
Various methods such as drilling, photofabrication, or other methods can be considered for forming the holes. As for the method for dropping the adhesive in a fixed amount, there are some that can be dropped with a reproducibility to a minimum of about 0.1 μ with a reproducible device using a commercially available device, and there is no particular difficulty.
効 果 以上の説明から明らかなように、本発明によると、 定量化された接着剤の浸透開始時のエリアが規定できる
ため、再現性のよい接着層が得られる。Effects As is clear from the above description, according to the present invention, the quantified area at the start of permeation of the adhesive can be defined, and thus an adhesive layer with good reproducibility can be obtained.
穴の大きさと接着剤の量の関係を選ぶことにより、オリ
フィスを接着剤でつまらせるという不良が皆無となる。By choosing the relationship between the size of the holes and the amount of adhesive, there is no failure to plug the orifice with adhesive.
接着層（厚さ）に再現性があるため、ヘッドの特性のバ
ラツキが少なくなる（ヘッドの特性、粒子化特性等は、
接着層のバラツキによりオリフィスプレートの振動状態
がバラツクことにより、かなり変化する）。Since the adhesive layer (thickness) has reproducibility, variations in head characteristics are reduced (head characteristics, particle characteristics, etc.
(Variable changes in the vibration state of the orifice plate due to variations in the adhesive layer).
等の利点がある。And so on.
第１図は、本発明によるオリフィスプレート接合方法が
適用されるオリフィスプレート面を示す図、第２図は、
本発明による接合の例を説明するための図、第３図は及
び第４図は、接合不良の例を示す図、第５図は、シング
ルノズルに本発明を適用する場合の例を示す図、第６図
は、従来の接合方法の一例を説明するための図である。 10……オリフィスプレート、11……オリフィス、12……
接合用の穴、15……接着剤、20……基板。FIG. 1 is a view showing an orifice plate surface to which an orifice plate joining method according to the present invention is applied, and FIG.
FIG. 3 is a diagram for explaining an example of joining according to the present invention, FIG. 3 and FIG. 4 are diagrams showing examples of joining defects, and FIG. 5 is a diagram showing an example when the present invention is applied to a single nozzle. , FIG. 6 is a diagram for explaining an example of a conventional joining method. 10 …… Orifice plate, 11 …… Orifice, 12 ……
Bonding holes, 15 ... adhesive, 20 ... substrate.
Claims (1)
開口とを形成したオリフィスプレート、該オリフィスプ
レートが接着されるヘッド本体とよりなるインクジェッ
トヘッドにおいて、前記オリフィスプレートとヘッド本
体とを接触せしめ、前記貫通開口から接着剤を注入し、
前記オリフィスプレートとヘッド本体との間に毛管現象
を利用して前記接着剤を浸透させ、前記オリフィスプレ
ートとヘッド本体との間に接着剤層を形成したことを特
徴とするインクジェットヘッド。1. An ink jet head comprising an orifice plate having an orifice for ejecting ink and a through opening, and a head body to which the orifice plate is adhered, wherein the orifice plate and the head body are brought into contact with each other, and Inject the adhesive from the through opening,
An ink jet head characterized in that an adhesive layer is formed between the orifice plate and the head body by infiltrating the adhesive between the orifice plate and the head body by utilizing a capillary phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60266493A JPH078576B2 (en) | 1985-11-27 | 1985-11-27 | Inkjet head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60266493A JPH078576B2 (en) | 1985-11-27 | 1985-11-27 | Inkjet head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62124956A JPS62124956A (en) | 1987-06-06 |
| JPH078576B2 true JPH078576B2 (en) | 1995-02-01 |
Family
ID=17431691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60266493A Expired - Lifetime JPH078576B2 (en) | 1985-11-27 | 1985-11-27 | Inkjet head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078576B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6079810A (en) * | 1993-01-22 | 2000-06-27 | Compaq Computer Corporation | Methods and apparatus for adhesively bonding an orifice plate to the internally chambered body portion of an ink jet print head assembly |
| GB9321786D0 (en) * | 1993-10-22 | 1993-12-15 | Xaar Ltd | Droplet deposition apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5684659A (en) * | 1979-12-13 | 1981-07-10 | Ricoh Co Ltd | Liquid injection head |
-
1985
- 1985-11-27 JP JP60266493A patent/JPH078576B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62124956A (en) | 1987-06-06 |
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