JPH041697B2 - - Google Patents
Info
- Publication number
- JPH041697B2 JPH041697B2 JP58153642A JP15364283A JPH041697B2 JP H041697 B2 JPH041697 B2 JP H041697B2 JP 58153642 A JP58153642 A JP 58153642A JP 15364283 A JP15364283 A JP 15364283A JP H041697 B2 JPH041697 B2 JP H041697B2
- Authority
- JP
- Japan
- Prior art keywords
- printing
- speed
- pin
- pins
- wire dot
- 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
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
- B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
- B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
- B41J2/235—Print head assemblies
- B41J2/25—Print wires
Landscapes
- Impact Printers (AREA)
Description
【発明の詳細な説明】
(1) 発明の技術分野
本発明は漢字出力が可能なワイヤドツトプリン
タに係り、特に、長寿命化を図る印字ピンの製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a wire dot printer capable of outputting Chinese characters, and particularly to a method of manufacturing a printing pin that extends its life.
(2) 技術の背景
従来のワイヤドツトプリンタ用印字ピンは高速
度工具鋼、タングステンあるいは超硬が使用され
ている。(2) Background of the technology Conventional printing pins for wire dot printers are made of high-speed tool steel, tungsten, or carbide.
(3) 従来技術と問題点
しかし、これらの印字ピンは、約１億ドツトの
印字で、著るしく摩耗し、高速度工具鋼では約
70μｍ、タングステンで約60μｍ、超硬でも10〜
20μｍも摩耗する。このため、印字品質が劣化
し、保守のため、印字ピンを研摩しヘツドを再生
するコストは莫大なものとなつている。(3) Prior art and problems However, these printing pins wear out significantly after printing approximately 100 million dots, and with high-speed tool steel, approximately 100 million dots are printed.
70μm, about 60μm for tungsten, 10~ for carbide
It wears out by as much as 20μm. As a result, the printing quality deteriorates, and the cost of polishing the printing pins and regenerating the heads for maintenance is enormous.
さらにこれらのピンは最も軽い高速度工具鋼で
もその比重が約7.8であるため重く、従つて印字
のためのエネルギーが大きく高速印字をする上で
の重大な問題点となつている。 Furthermore, even the lightest high-speed tool steel has a specific gravity of approximately 7.8, so these pins are heavy, and therefore require a large amount of energy for printing, which is a serious problem in high-speed printing.
(4) 発明の目的
本発明の目的は、印字ピンの摩耗がほとんどな
く、半永久的に使用でき、さらに軽量のため、低
印字エネルギーで、高速印字が可能となるワイヤ
ドツトプリンタ用の印字ピン製造方法を提供する
ことにある。(4) Purpose of the Invention The purpose of the present invention is to provide a method for manufacturing a printing pin for a wire dot printer, which has almost no wear on the printing pin, can be used semi-permanently, is lightweight, and enables high-speed printing with low printing energy. Our goal is to provide the following.
(5) 発明の構成
上記本発明の目的はワイヤドツトプリンタ用印
字ピンとしてアルミナ・セラミツクスのグリーン
を射出成形して焼結し、その後表面研削加工を施
したことを特徴とするワイヤドツトプリンタ用印
字ピンの製造方法により達成される。(5) Structure of the Invention The object of the present invention is to provide a printing pin for a wire dot printer, which is made by injection molding green alumina ceramics, sintering it, and then subjecting it to surface grinding. This is achieved by a manufacturing method.
(6) 発明の実施例 次に本発明の実施例について説明する。(6) Examples of the invention Next, examples of the present invention will be described.
アルミナ・セラミツクスとしてはAl2O3−MgO
−Cr2O3系とし0.25％MgO、0.025％Cr2O3、残
Al2O3および不可避不純物よりなる粉末と、バイ
ンダとしてポリエチレン30vol.％、パラフイン
5vol.％、ステアリン酸亜鉛5vol.％を混練し混練
体を得た。これを射出速度20cm3／秒、射出温度
160℃、金型温度55℃の条件で超硬製金型に射出
成形した。なおバインダ抜きは最高温度550℃、
昇温温度10℃／時間、降温は炉冷で行つた。その
後1600℃に焼結し、0.5mmφの丸棒を得た。この
グリーン丸棒を1600℃の水素雰囲気中で約１時間
焼結した。この時の丸棒の変形量（たわみ）は最
大で0.05mmであつた。この後このそりを修正する
ためにセンタレス研削を行いドツトピンとして、
図に示す。0.3mmφ×40mmの製品を得た。 Al 2 O 3 −MgO for alumina ceramics
−Cr 2 O 3 system with 0.25% MgO, 0.025% Cr 2 O 3 , balance
Powder consisting of Al 2 O 3 and unavoidable impurities, 30vol.% polyethylene and paraffin as a binder.
A kneaded body was obtained by kneading 5 vol.% of zinc stearate and 5 vol.% of zinc stearate. This is done at an injection speed of 20cm 3 /sec and an injection temperature of
Injection molding was carried out in a carbide mold under conditions of 160°C and mold temperature of 55°C. The maximum temperature for removing binder is 550℃.
The temperature was raised at 10°C/hour and the temperature was lowered by furnace cooling. Thereafter, it was sintered at 1600°C to obtain a round bar with a diameter of 0.5 mm. This green round bar was sintered in a hydrogen atmosphere at 1600°C for about 1 hour. At this time, the maximum amount of deformation (deflection) of the round bar was 0.05 mm. After this, in order to correct this warpage, centerless grinding was performed to create a dot pin.
As shown in the figure. A product of 0.3mmφ×40mm was obtained.
このピンをドツトプリンタヘツドに組込み印字
試験を行つたところ５億ドツト印字後でも摩耗量
は平均5μｍであり、超硬ワイヤピンなどに比較
してかなりの長寿命化がはかられた。 When this pin was installed in a dot printer head and a printing test was conducted, the amount of wear was 5 μm on average even after printing 500 million dots, and the lifespan was significantly longer than that of carbide wire pins.
本発明では印字ピンを射出成形で形成している
ので一度に多数の品質のそろつた印字ピンの製作
が容易にできる。 In the present invention, since the printing pins are formed by injection molding, it is possible to easily manufacture a large number of printing pins of uniform quality at the same time.
また、比重が、3.98と従来の高速度鋼7.8に比
べ約半分であるので、低い印字エネルギーでの高
速化（同印字エネルギーで比較すると約1.5倍の
印字速度）が達成できた。 In addition, since the specific gravity is 3.98, which is about half that of conventional high-speed steel 7.8, high-speed printing with low printing energy (approx. 1.5 times the printing speed when compared with the same printing energy) was achieved.
ただしアルミナ・セラミツクの強度が、超硬の
約1/4であるため、折損などの心配が当然考えら
れるが、５億ドツト印字間では、このようなこと
は認められなかつた。 However, since the strength of alumina ceramic is about 1/4 of that of carbide, there is naturally a risk of breakage, but this was not observed during printing of 500 million dots.
なおここで使用したアルミナ・セラミツクス
は、本件発明者の一人が出願した、特許第
1017759号“アルミナ磁器の製造方法”に記載さ
れているものである。 The alumina ceramics used here is covered by the patent No. 1 filed by one of the inventors of this case.
It is described in No. 1017759 "Method for manufacturing alumina porcelain".
ただし、これは一実施例であり、上記アルミ
ナ・セラミツクス以外の組成のものを使用しても
よい。 However, this is just one example, and materials with compositions other than the above alumina ceramics may be used.
(7) 発明の効果
本発明の方法によればワイヤドツトプリンタの
印字用ピンの長寿命化が可能であるばかりでな
く、小型軽量化に寄与し高速印字を可能とし、か
つ安価で品質のそろつた印字用ピンを提供できる
利点がある。(7) Effects of the Invention According to the method of the present invention, it is possible not only to extend the life of the printing pins of wire dot printers, but also to contribute to miniaturization and weight reduction, to enable high-speed printing, and to achieve uniform quality at low cost. It has the advantage of providing a printing pin.
図は本発明の方法により製造した印字用ピンの
外観図を示す。
The figure shows an external view of a printing pin manufactured by the method of the present invention.
Claims (1)
ミナ・セラミツクスのグリーンを射出成形してグ
リーン丸棒を作成し、該グリーン丸棒を焼結し、
その後表面研削加工を施したことを特徴とするワ
イヤドツトプリンタ用印字ピンの製造方法。1. Create a green round bar by injection molding green alumina ceramics as a printing pin for a wire dot printer, sinter the green round bar,
A method for producing a printing pin for a wire dot printer, characterized in that the surface is then subjected to a grinding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15364283A JPS6044355A (en) | 1983-08-23 | 1983-08-23 | Manufacture of printing pin for wire dot printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15364283A JPS6044355A (en) | 1983-08-23 | 1983-08-23 | Manufacture of printing pin for wire dot printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6044355A JPS6044355A (en) | 1985-03-09 |
| JPH041697B2 true JPH041697B2 (en) | 1992-01-14 |
Family
ID=15566981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15364283A Granted JPS6044355A (en) | 1983-08-23 | 1983-08-23 | Manufacture of printing pin for wire dot printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6044355A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215718A (en) * | 1975-07-28 | 1977-02-05 | Nippon Electric Co | High speed solenoid printing head |
| JPS57188382A (en) * | 1981-05-15 | 1982-11-19 | Ricoh Co Ltd | Ink type wire printer |
-
1983
- 1983-08-23 JP JP15364283A patent/JPS6044355A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6044355A (en) | 1985-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2132600A (en) | Zirconia type black decorative article and process for production thereof | |
| CN108941537A (en) | A kind of method of electron beam 3D printing Special high-temperature alloy | |
| JPH041697B2 (en) | ||
| US5824245A (en) | Processes for preparing milled graphite fibers | |
| KR870000444B1 (en) | Printing wire | |
| CN112458376B (en) | Hob cutter ring and preparation method thereof | |
| CN113604720A (en) | Large-size deformation-resistant molybdenum alloy rod and preparation method thereof | |
| CN114653950B (en) | Molybdenum-silicon-boron solid solution strengthened molybdenum cutting wire and preparation method thereof | |
| CN115417673A (en) | High-wear-resistance silicon nitride/silicon carbide composite ceramic and preparation method and application thereof | |
| JPS6229481B2 (en) | ||
| CN115417674A (en) | Wear-resistant silicon nitride/silicon carbide composite ceramic and preparation method and application thereof | |
| JP4700217B2 (en) | WC-ZrO2-based composite ceramic sintered body | |
| JP2943992B2 (en) | Nozzle for manufacturing quenched metal ribbon | |
| JPS62259867A (en) | Printing wire for printer | |
| CN115536396B (en) | High-wear-resistance silicon dioxide/silicon carbide composite ceramic and preparation method and application thereof | |
| JPH0346913Y2 (en) | ||
| JPS62264964A (en) | Production of printing pin | |
| JPS60191081A (en) | Precision work product of silicon carbide and manufacture | |
| JP5019704B2 (en) | Ceramic sintered body and method for producing the same | |
| JPS61219772A (en) | High processability high abrasion resistance ceramic material | |
| JPS59209889A (en) | Wire guide for wire dot printing head | |
| JP4538716B2 (en) | Metal bond grindstone and its manufacturing method | |
| JPH05331501A (en) | Production of sintered parts | |
| JPS62238035A (en) | Stranded wire die for copper and copper alloy | |
| JPS62220344A (en) | Ceramics nozzle for ink jet printer |