JPH0330972U

JPH0330972U -

Info

Publication number: JPH0330972U
Application number: JP9104589U
Authority: JP
Priority date: 1989-08-02
Filing date: 1989-08-02
Publication date: 1991-03-26

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例による自動縫いミ
シンの制御装置の関連部分を示す回路図、第２図
はこの考案の一実施例におけるタイミングチヤー
トと、従来技術を示すタイミングチヤートを示す
タイミング図、第３図はこの考案の一実施例にお
ける動作を示すフローチヤート、第４図は従来装
置を示す自動縫いミシンの制御装置の関連部分を
示す回路図である。図において、３１は連続／間欠切換え手段、３
２は内部クロツク／外部クロツクの切換えスイツ
チＳＷ２で第３の切換え手段、３３は送りタイミ
ング切換えスイツチＳＷ３，ＳＷ４で第１の切換
え手段、３４は移動期間切換えスイツチＳＷ５，
ＳＷ６で第２の切換え手段である。なお、図中、
同一符号は同一、又は相当部分を示す。 Fig. 1 is a circuit diagram showing related parts of a control device for an automatic sewing machine according to an embodiment of this invention, and Fig. 2 is a timing diagram showing a timing chart in an embodiment of this invention and a timing chart showing a conventional technique. 3 is a flowchart showing the operation of an embodiment of this invention, and FIG. 4 is a circuit diagram showing related parts of a control device for an automatic sewing machine, which is a conventional device. In the figure, 31 is continuous/intermittent switching means;
2 is an internal clock/external clock changeover switch SW2, which is a third switching means; 33 is a feed timing changeover switch SW3, SW4, which is a first changeover means; 34 is a movement period changeover switch SW5;
SW6 is the second switching means. In addition, in the figure,
The same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A presser foot that clamps the sewing material, an XY drive device that can independently drive the presser foot in each of the orthogonal X and Y axes, a sewing machine that forms the stitches, a motor that drives the sewing machine, and a a storage means for storing movement data in each of the X and Y axes, a detector for generating a synchronization signal that is generated in synchronization with each rotation of the sewing machine, and a predetermined number of pulse signals per rotation;
In the automatic sewing machine, the control device is configured to move the XY drive device by the stitch length of each stitch according to the movement data in synchronization with the synchronization signal to form a stitch. A first switch for switching the delay period until the movement data output.
a second switching means for switching the movement period width of the stitch length for one rotation of the sewing machine; an internal oscillation circuit for generating a pulse train of a specified arbitrary cycle; and a movement supplying the XY drive device. Control of an automatic sewing machine characterized by having a third switching means for switching between synchronizing the sending pulse for data with the pulse signal from the detector or the pulse signal from the internal oscillation circuit. Device.