JPS6155474B2 - - Google Patents
Info
- Publication number
- JPS6155474B2 JPS6155474B2 JP15578478A JP15578478A JPS6155474B2 JP S6155474 B2 JPS6155474 B2 JP S6155474B2 JP 15578478 A JP15578478 A JP 15578478A JP 15578478 A JP15578478 A JP 15578478A JP S6155474 B2 JPS6155474 B2 JP S6155474B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- liquid chamber
- welding
- diaphragm
- flat
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 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
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
Description
【発明の詳細な説明】
本発明は、きわめて多数のノズルを有するマル
チインクジエツトヘツドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-ink jet head having a large number of nozzles.
従来、多数のノズルを備えたマルチインクジエ
ツトヘツドは特開昭51―35231号公報にみられる
ように、セラミツクプレートに溝を形成し、この
溝の開口面に平板を接着することにより液室およ
びノズルを形成している。このようなものは液室
とノズルとになる溝を食刻により形成しているも
のであるため、表面状態が不均一であり、噴射機
能が安定しないという欠点がある。また、振動板
になる平板は大面積であるため、接着時に接着剤
が液室内に入つたり、接着されない部分ができ易
く、その接着作業は容易なことではない。 Conventionally, multi-ink jet heads equipped with a large number of nozzles have been constructed by forming grooves in a ceramic plate and gluing a flat plate to the opening surface of the grooves, as shown in Japanese Patent Application Laid-Open No. 51-35231. forming a nozzle. In this type of device, the grooves that serve as the liquid chamber and the nozzle are formed by etching, so the surface condition is uneven and the jetting function is unstable. In addition, since the flat plate that becomes the diaphragm has a large area, the adhesive tends to enter the liquid chamber during bonding, or there are parts that are not bonded, so the bonding process is not easy.
本発明は、このような点に鑑みなされたもの
で、接着剤を用いる必要がなく、かつ、均一な液
室を形成することができるマルチインクジエツト
ヘツドを得ることを目的とする。 The present invention has been devised in view of these points, and an object of the present invention is to provide a multi-ink jet head that does not require the use of an adhesive and can form a uniform liquid chamber.
本発明は、一枚おきの平板間に空所が形成され
るように複数枚の平板を交互にずらせて積層し、
これらの平板に振動板を溶接又は溶着により接合
させるとともにその前後にノズルプレートと背圧
板とを溶接又は溶着により接合させて前記空所を
液室とし、前記背圧板にインク溜りに連通したイ
ンク供給孔を前記液室毎に形成し、前記振動板に
前記液室位置に対応させて電歪素子を貼着したこ
とを特徴とするものである。したがつて、平板を
交互にずらせて形成される空所を振動板とノズル
プレートと背面板とにより覆うことにより均一な
液室が形成され、これも平板を積層して形成しう
るため、接着剤を用いる必要がなく、また、部品
形状も単純なものであるため製作し易いように構
成したものである。 In the present invention, a plurality of flat plates are alternately staggered and stacked so that a space is formed between every other flat plate,
A diaphragm is joined to these flat plates by welding or welding, and a nozzle plate and a back pressure plate are joined by welding or welding before and after the diaphragm, the space is made into a liquid chamber, and the back pressure plate is connected to an ink reservoir for supplying ink. A hole is formed for each of the liquid chambers, and an electrostrictive element is attached to the vibration plate in correspondence with the position of the liquid chamber. Therefore, a uniform liquid chamber is formed by covering the empty space formed by alternately shifting the flat plates with the diaphragm, nozzle plate, and back plate, and since this can also be formed by stacking flat plates, it is possible to It is constructed so that it is easy to manufacture because it does not require the use of chemicals and the shape of the parts is simple.
本発明の一実施例を図面に基づいて説明する。
まず、ブロツクゲージ状に平滑に仕上げられた複
数の平板１が設けられ、これらの平板１にはその
中心よりやや偏位した位置に二個づつの孔２が形
成されている。このような平板１を前記孔２が一
致するようにして交互にずらせつつ積層すること
により一枚おきの平板１間に空所３が形成され
る。そして、前記平板１の両端にはやや面積の大
きく孔２を有する端板４が接合されているととも
にそれらの孔２にビス５が挿通されて座金６を介
してナツト７で締着されることにより平板ブロツ
ク８が形成されている。この平板ブロツク８の上
下面には振動板９が接合されているとともに前面
にはノズルプレート１０が接合され、背面には背
面板１１が接合されている。これらの振動板９と
ノズルプレート１０と背面板１１とは接着剤によ
り固定されるのではなく、超音波溶着や拡散溶接
などの手段により固定されているものである。こ
のようにして覆われた前記空所３は液室１２とさ
れている。そして、これらの液室１２に対向する
前記ノズルプレート１０のそれぞれの位置にはノ
ズル１３が形成されており、これらのノズル１３
は千鳥配置がなされている。また、前記背面板１
１には前記液室１２に連通するインク供給孔１４
が形成されてそおり、この背面板１１にはインク
供給管１５が接続されたインク溜り１６が結合さ
れている。ついで、前記振動板９には前記液室１
２のそれぞれに対応させて電歪振動子１７が貼着
され、これらの電歪振動子１７はリード線１８に
より図示しない制御回路に接続されている。 An embodiment of the present invention will be described based on the drawings.
First, a plurality of flat plates 1 finished smoothly in the shape of a block gauge are provided, and two holes 2 are formed in each of these flat plates 1 at positions slightly offset from the center thereof. A space 3 is formed between every other flat plate 1 by stacking such flat plates 1 such that the holes 2 coincide with each other and shifting them alternately. End plates 4 having holes 2 with a slightly larger area are joined to both ends of the flat plate 1, and screws 5 are inserted into these holes 2 and fastened with nuts 7 through washers 6. A flat block 8 is formed. A diaphragm 9 is bonded to the upper and lower surfaces of the flat block 8, a nozzle plate 10 is bonded to the front surface, and a back plate 11 is bonded to the back surface. These diaphragm 9, nozzle plate 10, and back plate 11 are not fixed by adhesive but by means such as ultrasonic welding or diffusion welding. The space 3 covered in this way is used as a liquid chamber 12. Nozzles 13 are formed at respective positions of the nozzle plate 10 facing these liquid chambers 12, and these nozzles 13
are arranged in a staggered manner. In addition, the back plate 1
1 has an ink supply hole 14 communicating with the liquid chamber 12.
An ink reservoir 16 to which an ink supply pipe 15 is connected is coupled to the back plate 11. Next, the liquid chamber 1 is installed in the diaphragm 9.
2, and these electrostrictive vibrators 17 are connected to a control circuit (not shown) by lead wires 18.
このような構成において、インク供給管１５よ
りインクはインク溜り１６、インク供給孔１４を
経て液室１２内に供給されているが、一定の圧力
をもつて供給されているため、液室１２内はイン
クにより充満されている。この状態で、電歪振動
子１７に信号が与えられると、その電歪振動子１
７は歪んで液室１２の容積を減少させるため、ノ
ズル１３より微小なインク滴が噴射される。この
ような作用は従来と同様なものであるが、液室１
２の内容積は均一に形成されるため、いずれのノ
ズル１３においても一定のインク滴の噴射状態が
得られ、その動作は安定している。しかも、各液
室１２は接着剤を用いることなしに形成されてい
るため、接着剤による不安定化要素は全くない。
また、各平板１は同一形状のものでよいため、ノ
ズル１３の数がきわめて多数であつても製作は容
易なものである。 In this configuration, ink is supplied from the ink supply pipe 15 into the liquid chamber 12 through the ink reservoir 16 and the ink supply hole 14, but since it is supplied with a constant pressure, the inside of the liquid chamber 12 is is filled with ink. In this state, when a signal is given to the electrostrictive vibrator 17, the electrostrictive vibrator 1
7 is distorted and reduces the volume of the liquid chamber 12, so that a minute ink droplet is ejected from the nozzle 13. This kind of action is similar to the conventional one, but the liquid chamber 1
Since the internal volume of each nozzle 2 is uniform, a constant state of ejecting ink droplets can be obtained from each nozzle 13, and its operation is stable. Moreover, since each liquid chamber 12 is formed without using an adhesive, there is no destabilizing factor caused by the adhesive.
Moreover, since each flat plate 1 may have the same shape, manufacturing is easy even if the number of nozzles 13 is extremely large.
本発明は、上述のように平板をずらせて積層さ
せることにより形成される空所を、振動板とノズ
ルプレートと背面板とにより覆つて液室を形成す
るようにしたので、液室の容積は均等化され、こ
れにより、噴射状態を安定化させることができ、
平板と振動板との結合及びノズルプレートと背圧
板との結合等は溶接又は溶着により行われること
から接着剤を用いる必要がないため、液室内に接
着剤が入つたり接着不良が生じたりする不安定な
状態をなくすことができ、部品形状も簡単である
ため、きわめて作り易い等の効果を有するもので
ある。 In the present invention, the liquid chamber is formed by covering the empty space formed by shifting and stacking the flat plates with the diaphragm, the nozzle plate, and the back plate as described above, so that the volume of the liquid chamber is reduced. equalized, which allows the injection state to be stabilized,
The connection between the flat plate and the diaphragm, and the connection between the nozzle plate and the back pressure plate, etc. is done by welding or welding, so there is no need to use adhesive, so there is no risk of adhesive getting into the liquid chamber or adhesion failure. Since unstable conditions can be eliminated and the shape of the parts is simple, it is extremely easy to manufacture.
図面は本発明の一実施例を示すもので、第１図
は斜視図、第２図は平面図、第３図は第２図にお
けるＡ―Ａ線部の断面図、第４図は第２図におけ
るＢ―Ｂ線部の断面図である。
１…平板、３…空所、９…振動板、１０…ノズ
ルプレート、１１…背面板、１２…液室。
The drawings show one embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line A--A in FIG. 2, and FIG. It is a sectional view taken along line BB in the figure. DESCRIPTION OF SYMBOLS 1...Flat plate, 3...Vacation, 9...Vibration plate, 10...Nozzle plate, 11...Back plate, 12...Liquid chamber.
Claims (1)
複数枚の平板を交互にずらせて積層し、これらの
平板に振動板を溶接又は溶着により接合させると
ともにその前後にノズルプレートと背圧板とを溶
接又は溶着により接合させて前記空所を液室と
し、前記背圧板にインク溜りに連通したインク供
給孔を前記液室毎に形成し、前記振動板に前記液
室位置に対応させて電歪素子を貼着したことを特
徴とするマルチインクジエツトヘツド。1 A plurality of flat plates are alternately stacked so that a space is formed between every other flat plate, a diaphragm is joined to these flat plates by welding or welding, and a nozzle plate and a back pressure plate are attached before and after the diaphragm. and are joined by welding or welding to form a liquid chamber, an ink supply hole communicating with an ink reservoir is formed in the back pressure plate for each of the liquid chambers, and the diaphragm is made to correspond to the position of the liquid chamber. A multi-ink jet head characterized by an electrostrictive element attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15578478A JPS5582661A (en) | 1978-12-19 | 1978-12-19 | Multiple ink jet head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15578478A JPS5582661A (en) | 1978-12-19 | 1978-12-19 | Multiple ink jet head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5582661A JPS5582661A (en) | 1980-06-21 |
| JPS6155474B2 true JPS6155474B2 (en) | 1986-11-27 |
Family
ID=15613332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15578478A Granted JPS5582661A (en) | 1978-12-19 | 1978-12-19 | Multiple ink jet head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5582661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281744A (en) * | 1986-05-26 | 1987-12-07 | Matsushita Electric Works Ltd | Single-phase induction motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5712659A (en) * | 1980-06-27 | 1982-01-22 | Canon Inc | Color ink jet recording device |
-
1978
- 1978-12-19 JP JP15578478A patent/JPS5582661A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62281744A (en) * | 1986-05-26 | 1987-12-07 | Matsushita Electric Works Ltd | Single-phase induction motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5582661A (en) | 1980-06-21 |
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