JP2002273945A - Dot line printer - Google Patents
Dot line printerInfo
- Publication number
- JP2002273945A JP2002273945A JP2001075177A JP2001075177A JP2002273945A JP 2002273945 A JP2002273945 A JP 2002273945A JP 2001075177 A JP2001075177 A JP 2001075177A JP 2001075177 A JP2001075177 A JP 2001075177A JP 2002273945 A JP2002273945 A JP 2002273945A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- hammer
- release
- line
- spring
- 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
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Impact Printers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ドット印字ハンマ
によりドットマトリクス形式により印字を行うドットラ
インプリンタに関するものである。[0001] 1. Field of the Invention [0002] The present invention relates to a dot line printer which performs printing in a dot matrix format using a dot printing hammer.
【0002】[0002]
【従来の技術】図4に印字機構の概略図を示す。2. Description of the Related Art FIG. 4 is a schematic view of a printing mechanism.
【0003】印字ハンマ1を有するハンマバンク2は、
図示していないシャトル機構により桁方向に往復動して
いる。また、ハンマバンク2は間にインクリボン3と印
字用紙4を挟み、印字力を保持するためのプラテン5と
対向した状態で配置されている。往復動した状態で、印
字ハンマ1が適時駆動され、ドットマトリクスの形で文
字、図形等を印字用紙4に印字する。印字用紙4はその
過程で適時、紙送り機構部6により桁方向と垂直に送ら
れる。A hammer bank 2 having a printing hammer 1 is:
A shuttle mechanism (not shown) reciprocates in the girder direction. Further, the hammer bank 2 is arranged so as to sandwich the ink ribbon 3 and the printing paper 4 therebetween and face the platen 5 for maintaining the printing force. In the reciprocating state, the printing hammer 1 is driven at appropriate times, and prints characters, figures, and the like on the printing paper 4 in the form of a dot matrix. The printing paper 4 is fed by the paper feed mechanism 6 perpendicularly to the column direction as appropriate in the process.
【0004】ハンマバンク1は、板バネ状のハンマスプ
リング7の先端に配設され、印字行と垂直方向に所定ピ
ッチでN列に並べられた印字ハンマ1を1単位とし、そ
れを複数個印字行方向に並べて配置したハンマモジュー
ル8と、印字ハンマ1を非印字位置に保持するために磁
気吸引力を発生する永久磁石9と、印字ハンマ1を駆動
するために各印字ハンマ1に対応して設けられ、所定幅
のパルス電流を供給して磁石手段9の磁界を打ち消す釈
放用電磁コイル10よりなる。なお、釈放要電磁コイル
10は印字ハンマ1を吸引するコア11に直接またはボ
ビンを介して巻き回されて構成されている。The hammer bank 1 is disposed at the tip of a plate spring-shaped hammer spring 7, and the printing hammer 1 arranged in N columns at a predetermined pitch in a direction perpendicular to a printing line is used as one unit, and a plurality of printing hammer banks 1 are printed. A hammer module 8 arranged side by side in a row direction, a permanent magnet 9 for generating a magnetic attraction force to hold the print hammer 1 at a non-printing position, and a print hammer 1 for driving the print hammer 1 A release electromagnetic coil 10 for supplying a pulse current of a predetermined width to cancel the magnetic field of the magnet means 9 is provided. The release-required electromagnetic coil 10 is wound directly or via a bobbin on a core 11 for sucking the print hammer 1.
【0005】各印字ハンマ1の動的能力は、印字濃度に
影響を及ぼす印字力、及び釈放、印字、吸着の一連の動
作に掛かる反応時間(以下リピータビリティ)である。
各印字ハンマ1の印字力及びリピータビリティーを一定
化するため、磁気回路の吸引力、及びN列に並べられた
ハンマスプリング7のばね定数を一定にし、ハンマスプ
リング7が磁気回路に吸着した状態での静的な余剰吸引
力(余剰吸引力=磁気吸引力−ハンマスプリング7の撓
み力)を一定化させることで特性安定化を図ってきた。The dynamic ability of each printing hammer 1 is a printing power which affects the printing density, and a reaction time (hereinafter referred to as repeatability) required for a series of operations of release, printing and suction.
In order to make the printing power and repeatability of each printing hammer 1 constant, the attraction force of the magnetic circuit and the spring constant of the hammer springs 7 arranged in N rows are made constant, and the hammer spring 7 is attracted to the magnetic circuit. The characteristic stabilization has been achieved by making the static excess suction force (excess suction force = magnetic attraction force−bending force of the hammer spring 7) constant.
【0006】余剰吸引力を一定化させることで、静的な
特性を安定化し、釈放用電磁コイル10のタ−ン数及び
制御(駆動パルス仕様)をN列とも同一のもので構成し
てきた。The static characteristics are stabilized by making the excess suction force constant, and the number of turns and the control (drive pulse specification) of the release electromagnetic coil 10 have been configured to be the same for all N rows.
【0007】[0007]
【発明が解決しようとする課題】従来技術で説明したよ
うな構成においては、静的な余剰吸引力及びばね定数を
一定化することで動的な特性安定化を図ってきた。しか
し、印字行と垂直方向にN列に印字ハンマを配列するこ
とで、隣接するコアからの磁束の回り込みの差(主に印
字ハンマの長さの差に起因)により、静的な余剰吸引力
が一定でも、釈放後の吸着面への動的な引き戻し力のア
ンバランスにより、N列の各々において釈放後の印字ハ
ンマの動作速度に差が生じ、結果として印字力及びリピ
ータビリティが不均一になっていた。In the structure described in the prior art, dynamic characteristics are stabilized by stabilizing the static excess suction force and the spring constant. However, by arranging the print hammers in N columns in the vertical direction with respect to the print line, a difference in the wraparound of magnetic flux from an adjacent core (mainly due to a difference in the length of the print hammer) causes a static excess suction force. Even if is constant, the imbalance of the dynamic pull-back force to the suction surface after release causes a difference in the operating speed of the print hammer after release in each of the N rows, resulting in uneven printing power and repeatability. Had become.
【0008】図3にN=4列配列のハンマスプリングの
概略図を示す。FIG. 3 is a schematic diagram showing hammer springs arranged in N = 4 rows.
【0009】図1にN=1列の印字ハンマについて、横
軸にコア吸着面からの印字ハンマとのフライト距離、縦
軸に引き戻し力の解析値を示す。また、図2にN=4列
の同様データを示す。図1、2はN=1及び4列につい
て釈放電流値0.5〜2Aを掛けたときのハンマスプリ
ング引き戻し力を示したものである。なお、引き戻し力
とは、印字ハンマの吸着状態から印字ハンマの釈放後に
渡り、印字ハンマに作用している磁力を指す。FIG. 1 shows the flight distance of the print hammer from N = 1 row to the print hammer from the core suction surface, and the vertical axis shows the analysis value of the pullback force. FIG. 2 shows the same data in N = 4 columns. FIGS. 1 and 2 show the hammer spring retraction force when a release current value of 0.5 to 2 A is applied to N = 1 and 4 rows. The pull-back force refers to the magnetic force acting on the print hammer from the state of adsorption of the print hammer after the release of the print hammer.
【0010】図において、吸着状態ではN=1、4列と
も350gfの吸着力で静的に釣り合っている。しか
し、キャンセル電流を掛けた状態での引き戻し力を比較
すると、吸着状態、2Aの印加で60gf程度の差、フ
ライト距離0.05mm、2Aの印加で50gf程度の
引き戻し力の差が生じている。このように、電流印加に
より釈放されようとしている印字ハンマに対し、各列の
印字ハンマの引き戻し力に差が生じているため、釈放後
の印字ハンマ速度に差が生じ、打撃時の印字力、リピー
タビリティーが不均一になっていた。In the drawing, in the suction state, N = 1 and 4 rows are statically balanced with a suction force of 350 gf. However, when comparing the pull-back forces in a state where a cancel current is applied, a difference of about 60 gf occurs when the suction state is applied and 2 A is applied, and a difference of about 50 gf occurs when the flight distance is 0.05 mm and 2 A is applied. As described above, since there is a difference in the pull-back force of the print hammer in each row with respect to the print hammer that is about to be released by the application of the current, a difference occurs in the print hammer speed after release, and the printing force at the time of impact, Repeatability was uneven.
【問題を解決するための手段】上記課題を解決するに
は、N=1〜4の各印字ハンマ列に対し、釈放後のハン
マスプリング引き戻し力が一定になるように釈放電流値
をN=1〜4の各グループに対して各々設定してやれば
良い。また、それと同時に釈放用電磁コイルのコイルタ
ーン数をN=1〜4の各グループに対して各々設定し、
電流値の立ち上がり時間を制御し、引き戻し力が一定に
なるようにすることも効果がある。In order to solve the above-mentioned problems, the release current value is set to N = 1 so that the hammer spring pull-back force after release is constant for each of the print hammer rows of N = 1 to 4. What is necessary is just to set for each of the groups of ~ 4. At the same time, the number of coil turns of the release electromagnetic coil is set for each group of N = 1 to 4, respectively.
It is also effective to control the rise time of the current value so that the pullback force becomes constant.
【0011】[0011]
【発明の実施の形態】図1、2を用いて本発明の概念に
ついて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The concept of the present invention will be described with reference to FIGS.
【0012】図において、N=1〜4の各列の印字ハン
マに対し、釈放後のハンマスプリング引き戻し力が一定
になるように、なおかつ可能な限り小さくなるように釈
放電流値をN=1〜4の各列のグループに対して各々設
定する。In the drawing, for the print hammers of each row of N = 1 to 4, the release current values are set to N = 1 to 4 so that the hammer spring retraction force after release is constant and as small as possible. 4 is set for each group in each column.
【0013】例えば、図1のA−Aで示す曲線を、図2
のB−B曲線に近づけるように、N=1とN=4の各印
字ハンマのフライト距離に応じて引き戻し力が同じにな
るように釈放電流値を増やすように制御してやれば良
い。釈放電流値を増やすには、印字ハンマの駆動がパル
ス制御であればパルス幅を増加させる方法や、駆動電圧
を変える方法等がある。For example, the curve shown by AA in FIG.
The release current value may be controlled so as to increase the release current value in accordance with the flight distance of each print hammer of N = 1 and N = 4 so as to approach the BB curve of (1). In order to increase the release current value, there are a method of increasing the pulse width if the printing hammer is driven by pulse control, a method of changing the drive voltage, and the like.
【0014】また、釈放電流値を制御するのと同時に、
釈放用電磁コイルのコイルターン数をN=1〜4の各列
のグループに対して各々設定し、電流値の立ち上がり時
間を制御し、動特性から見た釈放能力の均一化を図り、
引き戻し力が一定になるようにすることも効果がある。At the same time as controlling the release current value,
The number of coil turns of the release electromagnetic coil is set for each row group of N = 1 to 4, the rise time of the current value is controlled, and the release capability is considered uniform from the viewpoint of dynamic characteristics.
It is also effective to make the retraction force constant.
【0015】以上のように、静的な余剰吸引力、ばね定
数を均一化した状態で釈放用電磁コイルのコイルターン
数、及びフライト距離に応じた電流値制御を行うことに
より、動特性の均一化を図ることが出来る。As described above, by performing the current value control in accordance with the number of coil turns of the release electromagnetic coil and the flight distance in a state where the static excess suction force and the spring constant are made uniform, the dynamic characteristics can be made uniform. Can be achieved.
【0016】[0016]
【発明の効果】以上、説明したように、静的な余剰吸引
力、ばね定数を均一課した状態で釈放用電磁コイルのコ
イルターン数、及びフライト距離に応じた電流値制御を
行うことにより、動特性の均一化を図ることが出来る。As described above, by controlling the current value according to the number of coil turns of the release electromagnetic coil and the flight distance in a state where the static excess suction force and the spring constant are uniformly imposed, as described above, The dynamic characteristics can be made uniform.
【図1】 N=1のときの釈放電流と引き戻し力の関係
を示すグラフFIG. 1 is a graph showing the relationship between release current and pullback force when N = 1.
【図2】 N=4のときの釈放電流と引き戻し力の関係
を示すグラフFIG. 2 is a graph showing the relationship between release current and pullback force when N = 4.
【図3】 印字ハンマの配列を示す概略図FIG. 3 is a schematic diagram showing an arrangement of a printing hammer.
【図4】 ドットラインプリンタの概略をを示す斜視図FIG. 4 is a perspective view schematically showing a dot line printer.
【図5】 印字機構を示す側面図FIG. 5 is a side view showing a printing mechanism.
1は印字ハンマ、2はハンマバンク、3はインクリボ
ン、4は印字用紙、5はプラテン、6は紙送り機構部、
7はハンマスプリング、8はハンマモジュール、9は永
久磁石、10は釈放用電磁コイル、11はコアである。1 is a printing hammer, 2 is a hammer bank, 3 is an ink ribbon, 4 is printing paper, 5 is a platen, 6 is a paper feed mechanism,
7 is a hammer spring, 8 is a hammer module, 9 is a permanent magnet, 10 is an electromagnetic coil for release, and 11 is a core.
Claims (2)
され、印字行と垂直方向に所定ピッチでN列に並べられ
た印字ハンマを1単位とし、該印字ハンマの複数個を印
字行方向に並べて配置したハンマモジュールと、該ハン
マモジュールをハンマスプリングを撓ませた状態の非印
字位置に保持するために磁気吸引力を発生する磁石手段
と、印字ハンマを駆動するために各印字ハンマに対応し
て設けられ、所定幅のパルス電流を供給して磁石手段の
磁界を打ち消す釈放用電磁コイルとを有すハンマバンク
を、印字行方向に往復動させるためのシャトルユニット
で動作させ、往復動の過程で印字ハンマを適時駆動させ
ることで、一回のシャトル動作でNドットラインを印字
するドットラインプリンタにおいて、 前記釈放用電磁コイルの釈放電流値の制御を、印字行と
垂直方向に並べられた印字ハンマの列毎にN個のグルー
プ単位で行っていることを特徴とするトッドラインプリ
ンタ。1. A printing hammer arranged at the tip of a leaf spring-shaped hammer spring and arranged in N columns at a predetermined pitch in a direction perpendicular to a printing line is defined as one unit. Corresponding to each hammer module for generating a magnetic attraction force to hold the hammer module at a non-printing position in a state where the hammer spring is bent, and each printing hammer to drive the printing hammer A hammerbank having a release electromagnetic coil for supplying a pulse current of a predetermined width and canceling the magnetic field of the magnet means is operated by a shuttle unit for reciprocating in the printing line direction. In a dot line printer that prints N dot lines in a single shuttle operation by driving the print hammer as needed in the process, the release current value of the release electromagnetic coil Characterized in that the control is performed in units of N groups for each row of printing hammers arranged vertically in the printing line.
され、印字行と垂直方向に所定ピッチでN列に並べられ
た印字ハンマを1単位とし、該印字ハンマの複数個を印
字行方向に並べて配置したハンマモジュールと、該ハン
マモジュールをハンマスプリングを撓ませた状態の非印
字位置に保持するために磁気吸引力を発生する磁石手段
と、印字ハンマを駆動するために各印字ハンマに対応し
て設けられ、所定幅のパルス電流を供給して磁石手段の
磁界を打ち消す釈放用電磁コイルとを有すハンマバンク
を、印字行方向に往復動させるためのシャトルユニット
で動作させ、往復動の過程で印字ハンマを適時駆動させ
ることで、一回のシャトル動作でNドットラインを印字
するドットラインプリンタにおいて、 前記釈放用電磁コイルのコイルターン数を、印字行と垂
直方向に並べられた印字ハンマの列毎にN個のグループ
単位で変えていることを特徴とするトッドラインプリン
タ。2. A printing hammer disposed at the tip of a leaf spring-shaped hammer spring and arranged in N columns at a predetermined pitch in a direction perpendicular to a printing line is defined as one unit. Corresponding to each hammer module for generating a magnetic attraction force to hold the hammer module at a non-printing position in a state where the hammer spring is bent, and each printing hammer to drive the printing hammer A hammerbank having a release electromagnetic coil for supplying a pulse current of a predetermined width and canceling the magnetic field of the magnet means is operated by a shuttle unit for reciprocating in the printing line direction. In a dot line printer that prints N dot lines in a single shuttle operation by driving the printing hammer in a timely manner, the coil coil of the release electromagnetic coil A todd line printer characterized in that the number of printing lines is changed in units of N groups for each row of printing hammers arranged vertically in the printing line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001075177A JP2002273945A (en) | 2001-03-16 | 2001-03-16 | Dot line printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001075177A JP2002273945A (en) | 2001-03-16 | 2001-03-16 | Dot line printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002273945A true JP2002273945A (en) | 2002-09-25 |
Family
ID=18932292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001075177A Pending JP2002273945A (en) | 2001-03-16 | 2001-03-16 | Dot line printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002273945A (en) |
-
2001
- 2001-03-16 JP JP2001075177A patent/JP2002273945A/en active Pending
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