JPH02149288A - Electronic cycle sewing machine - Google Patents

Electronic cycle sewing machine

Info

Publication number
JPH02149288A
JPH02149288A JP30486488A JP30486488A JPH02149288A JP H02149288 A JPH02149288 A JP H02149288A JP 30486488 A JP30486488 A JP 30486488A JP 30486488 A JP30486488 A JP 30486488A JP H02149288 A JPH02149288 A JP H02149288A
Authority
JP
Japan
Prior art keywords
sewing
holding table
pulse motor
sewing machine
cloth holding
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.)
Granted
Application number
JP30486488A
Other languages
Japanese (ja)
Other versions
JPH06102112B2 (en
Inventor
Kunio Takano
高野 邦夫
Masanori Nukushina
温品 政典
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.)
Juki Corp
Original Assignee
Juki Corp
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 Juki Corp filed Critical Juki Corp
Priority to JP63304864A priority Critical patent/JPH06102112B2/en
Publication of JPH02149288A publication Critical patent/JPH02149288A/en
Publication of JPH06102112B2 publication Critical patent/JPH06102112B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To reduce generation of failure in sewing to a minimum even in the case of malfunction of a pulse motor, without affecting the next sewing, by causing a regular sewing pattern to be formed in a predetermined position in a work, and after sewing has been finished, causing a work holding table to restore to the starting position of sewing. CONSTITUTION:Each pulse motor 4, 5 is stopped when the region of a cloth holding table shifts from the region in which it has located at the finish of sewing to the other region, i.e., when the output signal from each sensor 8, 9 is converted from 1 to 0 or vice versa. The cloth holding table therefore locates in its initial point in either direction of its axis. Even when the finishing position P2 of sewing may be shifted from its proper position by the malfunction of the pulse motor 2, 3, the error is then forcibly corrected by shifting the finishing position P2 to the initial position P0. Thereafter, each pulse motor, 2, 3 is re-actuated by a predetermined amount so as to shift the cloth holding table to the starting position P of sewing as indicated by the arrow B. The error that is made during sewing will have been corrected by this time, so that the cloth holding table precisely restores to the starting position of sewing.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、予め入力した縫製データに基づき、所定の
縫製パターンを自動的に繰り返形成し得るようにした電
子サイクルミシンに関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic cycle sewing machine that is capable of automatically and repeatedly forming a predetermined sewing pattern based on sewing data input in advance.

〔従来の技術〕[Conventional technology]

一般に同一の縫製品を大量生産する縫製工場等において
は、被縫物(ワーク)に対し、予め定めた縫製パターン
を繰り返し実行する、所謂電子サイクルミシンが用いら
れている。
2. Description of the Related Art Generally, so-called electronic cycle sewing machines are used in sewing factories that mass-produce the same sewn products, and which repeatedly execute predetermined sewing patterns on objects to be sewn (workpieces).

この種のミシンでは、現在、縫製データに基づきパルス
モータを制御し、ミシンテーブルをX方向、Y方向へ移
動させて、第6図に示すように縫製開始点P□から縫製
終了点P2 に至る所定の縫い目を形成し、縫製終了後
、縫製開始点P1へ復帰するというサイクルをワークW
毎に繰り返すものである。
Currently, in this type of sewing machine, the pulse motor is controlled based on sewing data, and the sewing machine table is moved in the X and Y directions from the sewing start point P□ to the sewing end point P2, as shown in Fig. 6. The workpiece W performs a cycle of forming a predetermined seam and returning to the sewing starting point P1 after finishing sewing.
It is repeated every time.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかしながら、上記サイクルミシンにあっては、パルス
モニタが縫製データに従って適正に駆動されていや場合
には良いが、パルスモータに税調が発生した−合には、
サイクルが終了した時点で縫製開始位置P□にずれが生
じる。このため、引き続き自動的に縫製が行なわれた場
合には、以後の縫製凸金てに不良が発生するという問題
が発生する。
However, in the above-mentioned cycle sewing machine, it is fine if the pulse monitor is driven properly according to the sewing data, but if a tax adjustment occurs in the pulse motor,
At the end of the cycle, a shift occurs in the sewing start position P□. Therefore, when sewing is continued automatically, a problem arises in that subsequent sewing protrusions are defective.

この発明は前記問題点に着目して成されたもので、パル
スモータに脱調が発生したとしても、次の縫製に影響を
およぼすことはなく、縫製不良の発生を最小限にとどめ
ることができる電子サイクルミシンの提供を目的とする
This invention was made by focusing on the above-mentioned problem, and even if a step-out occurs in the pulse motor, it will not affect the next sewing, and the occurrence of sewing defects can be kept to a minimum. The purpose is to provide electronic cycle sewing machines.

〔課題を解決するための手段〕[Means to solve the problem]

この発明は、予め定めた縫製データに基づきパルスモー
タを制御し、ワーク保持1台を針に対し相対的に水平移
動させることにより一定の縫製パターンを形成するよう
にした電子サイクルミシンであって、前記ワーク保持台
を縫製終了位置からミシン機枠に設定される原点位置へ
移動させた後、縫製開始位置へ復帰させるようにしたも
のである。
The present invention is an electronic cycle sewing machine that forms a fixed sewing pattern by controlling a pulse motor based on predetermined sewing data and horizontally moving a workpiece holder relative to a needle, The workpiece holding table is moved from the sewing end position to an origin position set on the sewing machine frame, and then returned to the sewing start position.

〔作  用〕[For production]

上記電子サイクルミシンにおいては、縫製中にパルスモ
ータ等の脱調が発生し、縫製終了位置が適正な終了位置
からすれたとしても、その後、ワーク保持台をミシン機
枠に設定された原点位置へ移動させ、ここで脱調による
位置すれを補正した後、縫製開始位置へ移動させるため
、次のワークに対しては、適正な位置から縫製を開始す
ることができる。これにより、縫製不良は脱調の発生し
たワークのみにとどめることができる。
In the above-mentioned electronic cycle sewing machine, even if the pulse motor etc. loses synchronization during sewing and the sewing end position deviates from the proper end position, the workpiece holding table is then moved to the origin position set on the sewing machine frame. After correcting positional deviation due to step-out, the sewing machine is moved to the sewing start position, so that sewing can be started from an appropriate position for the next workpiece. As a result, sewing defects can be limited to only the workpiece in which the step-out has occurred.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を第1図ないし第5図に基づ
き説明する。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

第1図はこの実施例における制御系回路を示す図である
FIG. 1 is a diagram showing a control system circuit in this embodiment.

図において、1は後述の各部の制御を行なう周知のCP
U、2は布を保持するワーク保持台を水平面上の一軸線
方向(X軸方向)へ移動させるX軸線パルスモータ、3
は前記布の保持台を前記X軸方向と直交する方向(Y軸
方向)へ移動させるY軸パルスモータ、4は前記X軸パ
ルスモータ2を駆動させるXモータ駆動回路、5は前記
Y軸パルスモータ3を駆動させるY軸モータ即動回路で
あり、これら各モータ駆動回路4,5はそれぞれCPU
Iにより制御される。
In the figure, 1 is a well-known CP that controls each part described later.
U, 2 is an X-axis pulse motor that moves a workpiece holding table that holds cloth in one axis direction (X-axis direction) on a horizontal plane;
4 is a Y-axis pulse motor that moves the cloth holding table in a direction (Y-axis direction) perpendicular to the X-axis direction; 4 is an X-motor drive circuit that drives the X-axis pulse motor 2; and 5 is the Y-axis pulse. This is a Y-axis motor immediate-acting circuit that drives the motor 3, and each of these motor drive circuits 4 and 5 is operated by a CPU.
Controlled by I.

6はミシンの針棒を昇降させるミシンモータ、7はこの
ミシンモータ6を前記CPUIから送出される制御信号
に基づき駆動させるミシンモータ駆動回路である。8は
前記布保持台がX軸線上の原点位置P。に位置するか否
かを検出するためのX柏原点センサ、9は同上布保持台
がYI!IIl線上の原点位置に位置するか否かを検出
するためのY柏原点センサであり、両センサ8,9から
は、布保持台の位置する領域に応じて「1」または「0
」の信号がそれぞれ検出信号としてCPUIへ出力され
る。10は後述の原点検索動作を1縫製サイクル中に行
なわせるが否かを設定するための原点検′索設定スイッ
チである。
6 is a sewing machine motor that raises and lowers the needle bar of the sewing machine, and 7 is a sewing machine motor drive circuit that drives this sewing machine motor 6 based on a control signal sent from the CPUI. 8 is the origin position P of the cloth holder on the X-axis. X Kashiwa origin sensor for detecting whether it is located at YI! This is a Y-Kashiwa origin sensor for detecting whether or not the fabric is located at the origin position on line IIl, and both sensors 8 and 9 output "1" or "0" depending on the area where the cloth holding table is located.
” are respectively output to the CPUI as detection signals. Reference numeral 10 denotes an origin search setting switch for setting whether or not to perform an origin search operation to be described later during one sewing cycle.

11は縫製データをはじめとする種々のデータを格納す
るメモリで、ROMおよびRAMより成る。なお、12
は縫製動作の開始指令を入力するスタートスイッチであ
る。
A memory 11 stores various data including sewing data, and is composed of a ROM and a RAM. In addition, 12
is a start switch for inputting a command to start sewing operation.

また、第2図は前記原点検索センサ8,9の原理的構成
を示す概略説明図である。
Further, FIG. 2 is a schematic explanatory diagram showing the principle structure of the origin search sensors 8 and 9.

図示のように、前記X軸、X軸パルスモータ2゜3の回
動シャフト13.14にはプーリ15,16が取り付け
られており、このプーリ15,16の回転はタイミング
ベルト17を介してプーリ18.19に伝達され、この
プーリ18,19と共にシャフト20.21が回転する
ようになっている。このシャフト20.21には異なる
径を有する検出円板22.23が固着されており、さら
にこの検出円板22.23の周縁部はフォトインタラプ
タ24−.25の投光部24a、25aと受光部24b
、25bとの間に位置している。そして、検出円板22
.23の大径部22a、23aがフオドインタラプタ2
4.25内に位置している場合には、投光部24a、2
5aから受光部24b。
As shown in the figure, pulleys 15 and 16 are attached to the rotating shafts 13 and 14 of the X-axis and X-axis pulse motors 2. 18, 19, and the shaft 20, 21 rotates together with the pulleys 18, 19. Detection discs 22.23 having different diameters are fixed to this shaft 20.21, and the peripheral edge of this detection disc 22.23 is connected to photointerrupters 24-. 25 light projecting parts 24a, 25a and light receiving part 24b
, 25b. Then, the detection disk 22
.. The large diameter portions 22a and 23a of 23 are the food interrupter 2.
4.25, the light emitting parts 24a, 2
5a to the light receiving section 24b.

25bへの光路を遮るため、出力信号はrQJとなり、
また、逆に小径部22b、23bが位置する場合には受
光部24b、25bにて投光部24a、25aからの光
が受光されるため、出力信号は「1」となる。
In order to block the optical path to 25b, the output signal becomes rQJ,
Conversely, when the small diameter portions 22b and 23b are located, the light from the light projecting portions 24a and 25a is received by the light receiving portions 24b and 25b, so the output signal becomes “1”.

このrlJ、rQJの信号は、ワーク保持台が各軸方向
において、原点P。中心にプラスの領域にあるかマイナ
スの領域にあるかを意味する。なお前記検出円板22.
23及びフォトインタラプタ24.25により原点検出
センサ8,9が構成されている。
These rlJ and rQJ signals indicate that the workpiece holding table is at the origin P in each axis direction. It means whether the center is in a positive region or a negative region. Note that the detection disk 22.
23 and photointerrupters 24 and 25 constitute origin detection sensors 8 and 9.

次に、第3図及び第4図のフローチャートに基づき作用
を説明する。
Next, the operation will be explained based on the flowcharts of FIGS. 3 and 4.

第3図において、スタートスイッチ12をONし、縫製
開始指令を入力すると、メモリ11内に予め格納されて
いる縫製データに基づきCPUIがX軸及びY軸パルス
モータ2,3を作動させて布保持台の水平移動を開始さ
せる一方、ミシンモータ6を原動する。これによりワー
クWには(第5図に示すように)縫い始め点P工から所
定の縫い目が形成されてゆく(ステップ1)。この後、
縫製データに基づく縫製動作が完了すると、CPU1は
ミシンモータ6を停止させ、針を上死点で保持させる(
ステップ3)。そして、ここで原点検索設定スイッチ1
0がONとなっているか否かを判別しくステップ4) 
、ONとなっていればステップ5にて第5図に示す原点
検索動作を実行する。まず、ステップ5Aでは、X軸及
びY軸の両原点センサ8,9からの出力信号が「1」で
あるか「0」であるかを判別する。すなわち、布保持台
が各軸方向において、それぞれプラス領域にあるかマイ
ナス領域にあるかを判断する。ここで、布保持台が現在
プラス領域にあると判断されれば(出力信号が「1」で
あると判断されれば)、布保持台がマイナス領域に向っ
て移動するよう各パルスモータ2,3を作動させる(ス
テップ5B)。
In FIG. 3, when the start switch 12 is turned on and a sewing start command is input, the CPU operates the X-axis and Y-axis pulse motors 2 and 3 to hold the cloth based on the sewing data stored in advance in the memory 11. While starting horizontal movement of the table, the sewing machine motor 6 is driven. As a result, a predetermined stitch is formed on the workpiece W (as shown in FIG. 5) from the sewing start point P (step 1). After this,
When the sewing operation based on the sewing data is completed, the CPU 1 stops the sewing machine motor 6 and holds the needle at the top dead center (
Step 3). And here, origin search setting switch 1
Step 4) Determine whether 0 is ON or not.
, is ON, in step 5 the origin search operation shown in FIG. 5 is executed. First, in step 5A, it is determined whether the output signals from both the X-axis and Y-axis origin sensors 8 and 9 are "1" or "0". That is, it is determined whether the cloth holding table is in the plus region or the minus region in each axis direction. Here, if it is determined that the cloth holding table is currently in the plus area (if it is determined that the output signal is "1"), each pulse motor 2, 3 (step 5B).

また逆に、布保持台がマイナス領域にあると判断された
場合には、前述とは逆方向にパルスモータ2.3を回転
させ、布保持台をプラス領域へ向って移動させる(ステ
ップ5)。そして布保持台の領域が、縫製終了時に位置
した領域から、他方の領域に切り換った時点、すなわち
各センサ8,9からの出力信号が「1」から「O」へ又
は「0」から「1」へ切り換った時点で各パルスモータ
4゜5を停止させる(ステップ5D、5E)。これによ
り布保持台は両軸方向において原点位置に位置する。そ
の結果、縫製終了位置P2 がパルスモータ2,3の脱
調によって適正位置からずれていた場合にも、そのずれ
は原点位置P。への移動(第5図、矢符A参照)により
、強制的に補正される。
Conversely, if it is determined that the cloth holding table is in the negative region, the pulse motor 2.3 is rotated in the opposite direction to that described above to move the cloth holding table toward the positive region (step 5). . Then, when the area of the cloth holding stand switches from the area where it was located at the end of sewing to the other area, that is, the output signal from each sensor 8, 9 changes from "1" to "O" or from "0" At the time of switching to "1", each pulse motor 4.5 is stopped (steps 5D and 5E). As a result, the cloth holding table is located at the original position in both axial directions. As a result, even if the sewing end position P2 deviates from the proper position due to step-out of the pulse motors 2 and 3, the deviation is the same as the origin position P. (see arrow A in FIG. 5), the correction is forced.

この後、第3図のステップ6により再びパルスモータ2
,3を所定量作動させ、布保持台を第5図の矢符Bに示
すように縫い=h位fiP□へ移動させるが、この時点
では既に縫製中のずれは補正されているため、布保持台
は正確に縫い始め位置へ復帰する。従って1次のワーク
に対し、適正な縫い始め点P工から縫製動作を開始する
ことができ、lる。このため、例えば縫製動作中にパル
スモータの脱調が発生したとしても、縫製不良はその脱
調の発生したワークにのみとどめることができ、次のワ
ークの縫製に悪影響をあたえることはない。
After this, the pulse motor 2 is activated again in step 6 of FIG.
, 3 by a predetermined amount to move the fabric holding table to the sewing = h position fiP □ as shown by arrow B in Fig. 5. At this point, the deviation during sewing has already been corrected, so the fabric The holding stand accurately returns to the sewing starting position. Therefore, the sewing operation for the primary workpiece can be started from the appropriate sewing start point P. Therefore, even if a step-out of the pulse motor occurs during a sewing operation, the sewing defect can be limited to the workpiece where the step-out has occurred, and will not adversely affect the sewing of the next workpiece.

なお、上記のようなパルスモータ2,3の脱調補正動作
を特に必要としないと思われる場合には、原点検索設定
スイッチ10をOFFとすることにより、第5図の矢符
Cに示すように縫い終り位置P□から直接縫い始め位置
へ移動させるようにすることもできる。
In addition, if it seems that there is no particular need for the step-out correction operation of the pulse motors 2 and 3 as described above, by turning off the origin search setting switch 10, the operation is performed as shown by arrow C in FIG. It is also possible to directly move from the sewing end position P□ to the sewing start position.

〔発明の効果〕〔Effect of the invention〕

以上説明したとおり、この発明によれば、布保持台を移
動させ名パルスモータに脱調が発生したとしても、その
影響を次のワークに及ぼすことはなく、縫製不良の発生
を最小限にとどめることができる。従って、このサイク
ルミシンを適用すれば脱調の発生を監視するための人員
を必要とせず、省力化、自動化を達成できるという効果
がある。
As explained above, according to the present invention, even if the cloth holding table is moved and the pulse motor loses synchronization, the effect will not be exerted on the next workpiece, and the occurrence of sewing defects can be kept to a minimum. be able to. Therefore, if this cycle sewing machine is applied, there is no need for personnel to monitor the occurrence of step-out, and there is an effect that labor saving and automation can be achieved.

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

第1図はこの発明の一実施例における制御系回路を示す
ブロック図、第2図は第1図に示した原点検出センサの
原理を示す概略構成図、第3図はこの発明の一実施例に
おける動作を示すフローチャート、第4図は第3図に示
した原点検索動作を示すフローチャート、第5図はこの
実施例により形成される縫製パターン例及びワークの移
動過程を示す説明図、第6図は従来の電子サイクルミシ
ンにより形成される縫製パターン例及びワークの移動過
程を示す説明図である。 1・・・CPU        Pl・・・縫い始め点
2・・・X軸パルスモータ  P2・・・縫い終り点3
・・・Y軸パルスモータ 8・・・X@原点センサ 9・・・Y軸原点センサ W・・・ワーク
Fig. 1 is a block diagram showing a control system circuit in an embodiment of the present invention, Fig. 2 is a schematic configuration diagram showing the principle of the origin detection sensor shown in Fig. 1, and Fig. 3 is an embodiment of the invention. 4 is a flowchart showing the origin search operation shown in FIG. 3, FIG. 5 is an explanatory diagram showing an example of the sewing pattern formed by this embodiment and the movement process of the workpiece, and FIG. FIG. 2 is an explanatory diagram showing an example of a sewing pattern formed by a conventional electronic cycle sewing machine and a movement process of a workpiece. 1...CPU Pl...Sewing start point 2...X-axis pulse motor P2...Sewing end point 3
...Y-axis pulse motor 8...X@Origin sensor 9...Y-axis origin sensor W...Work

Claims (1)

【特許請求の範囲】 予め入力された縫製データに基づきパルスモータを制御
し、前記パルスモータにて針とワーク保持台とを相対的
に水平移動させることにより、ワークの所定位置に一定
の縫製パターンを形成させると共に、縫製終了後前記ワ
ーク保持台を縫製開始位置に復帰させるようにした電子
サイクルミシンであって、 前記ワーク保持台を縫製終了位置から、ミシン機枠に設
定される原点位置へ移動させた後、縫製開始位置へ復帰
させるようにしたことを特徴とする電子サイクルミシン
[Claims] By controlling a pulse motor based on sewing data input in advance and moving the needle and the workpiece holding table relatively horizontally using the pulse motor, a fixed sewing pattern is created at a predetermined position on the workpiece. The electronic cycle sewing machine is characterized in that the workpiece holder is returned to the sewing start position after sewing is completed, and the workpiece holder is moved from the sewing end position to an origin position set on the sewing machine frame. An electronic cycle sewing machine characterized in that the electronic cycle sewing machine returns to the sewing starting position after the sewing machine has moved.
JP63304864A 1988-11-30 1988-11-30 Electronic cycle sewing machine Expired - Fee Related JPH06102112B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63304864A JPH06102112B2 (en) 1988-11-30 1988-11-30 Electronic cycle sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63304864A JPH06102112B2 (en) 1988-11-30 1988-11-30 Electronic cycle sewing machine

Publications (2)

Publication Number Publication Date
JPH02149288A true JPH02149288A (en) 1990-06-07
JPH06102112B2 JPH06102112B2 (en) 1994-12-14

Family

ID=17938196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63304864A Expired - Fee Related JPH06102112B2 (en) 1988-11-30 1988-11-30 Electronic cycle sewing machine

Country Status (1)

Country Link
JP (1) JPH06102112B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003000975A (en) * 2001-06-22 2003-01-07 Barudan Co Ltd Sewing machine and its controlling method
JP2006110237A (en) * 2004-10-18 2006-04-27 Juki Corp Sewing machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200689A (en) * 1983-04-28 1984-11-14 三菱電機株式会社 Automatic sewing machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59200689A (en) * 1983-04-28 1984-11-14 三菱電機株式会社 Automatic sewing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003000975A (en) * 2001-06-22 2003-01-07 Barudan Co Ltd Sewing machine and its controlling method
JP2006110237A (en) * 2004-10-18 2006-04-27 Juki Corp Sewing machine

Also Published As

Publication number Publication date
JPH06102112B2 (en) 1994-12-14

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