JPH03111081A - Automatic sewing machine - Google Patents
Automatic sewing machineInfo
- Publication number
- JPH03111081A JPH03111081A JP24858589A JP24858589A JPH03111081A JP H03111081 A JPH03111081 A JP H03111081A JP 24858589 A JP24858589 A JP 24858589A JP 24858589 A JP24858589 A JP 24858589A JP H03111081 A JPH03111081 A JP H03111081A
- Authority
- JP
- Japan
- Prior art keywords
- hook
- needle
- gear
- sewing machine
- deviation
- 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
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 29
- 239000004744 fabric Substances 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 abstract description 19
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【発明の詳細な説明】
産ｌ上ｑ机里立野
本発明は自動縫ミシンに関し、特に一連の縫目を凡てパ
ーツエフトスチッチに縫製し得る自動縫ミシンに関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic sewing machine, and more particularly to an automatic sewing machine that can sew a series of stitches in a part-efto-stitch.
従来少及皿
加工布の移動方向の変化によって、即ち針に通した上糸
導出側と釜から導出される下糸の針に対する相対方向に
よってパーツエフトスチッチ又はヒツチステッチが形成
されることは周知であり。It is well known that a part-left stitch or a hitch stitch is formed by changing the direction of movement of the cloth for small and medium-sized work, that is, by changing the relative direction of the upper thread threaded through the needle and the bobbin thread led out from the hook with respect to the needle. can be.
模様縫ミシンでは、パーツエフトスチッチとヒツチステ
ッチとがまじり合うことは仕上げ上の問題点となる。In pattern sewing machines, the mixing of part-eft stitches and hitch stitches poses a finishing problem.
この問題を解決するために種々な提案がある。There are various proposals to solve this problem.
特゛公昭５６−５３３９７号公報に記載されたミシンは
ミシン装置全体を針を中心に回動させる形式であり。The sewing machine disclosed in Japanese Patent Publication No. 56-53397 is of a type in which the entire sewing machine device is rotated around the needle.
゛装置が大型高価となる。゛The equipment is large and expensive.
特開昭５７−１１９７８４号に記載されたミシンは針と
釜とを別個のモータによって回動させる。この形式は通
常の上下機構を機械的に連結するミシンには採用困難で
あり、釜の回動の際のタイミングのずれの問題が残る。The sewing machine described in Japanese Patent Application Laid-Open No. 57-119784 rotates the needle and hook using separate motors. This type is difficult to apply to sewing machines that mechanically connect the upper and lower mechanisms, and there remains the problem of timing discrepancies when rotating the hook.
特開昭６３−１０５７８５号に記載されたミシンは針と
釜とを２個のクランクとレバーによって連結する構成で
ある。しかしながら、上軸の回転運動をレバーによる上
下運動に変化させ、更にこれを回転運動に変えることは
２機構上正確な高速運動の伝達には不適当である。The sewing machine described in JP-A-63-105785 has a construction in which a needle and a hook are connected by two cranks and a lever. However, changing the rotational movement of the upper shaft into vertical movement using a lever, and further converting this into rotational movement, is unsuitable for accurately transmitting high-speed movement due to two mechanisms.
の ゛ べ 雪
本発明の目的は自動縫ミシンを提供し、上述の欠点を生
ずることなく縫製方向に無関係にパーツエフトスチッチ
を形成し、針と釜とのタイミングのずれを生じないミシ
ンとするにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic sewing machine which can form a part-ft stitch regardless of the sewing direction without causing the above-mentioned drawbacks, and which does not cause timing deviation between the needle and the hook. be.
本発明の他の目的は自動縫ミシンを提供し、パーツエフ
トスチッチ形成のための針の回動に際して上糸の絡みを
生じないミシンとする。Another object of the present invention is to provide an automatic sewing machine that does not cause entanglement of the needle thread when rotating a needle for forming a part-eft stitch.
゛ るための
上述の目的を達するための本発明による自動縫ミシンは
、往復運動する針と、針の往復運動軸線を中心に回動さ
せる針棒駆動ユニットと、針に共働して回転駆動される
釜と、釜を針の往復運動軸線を中心として回動させる釜
駆動ユニットと、加工布をＸＹ力方向移送するテーブル
と、テーブルの移送方向に同期して針棒駆動ユニットと
釜駆動ユニ、ットとを回動させ針と釜の向きを加工布の
移送方向と同方向とする駆動装置とを含むミシンにおい
て、釜の回転駆動装置に差動歯車装置を介挿し、前記駆
動装置と差動歯車装置とを連結して釜のタイミングのず
れを吸収する。The automatic sewing machine according to the present invention has a reciprocating needle, a needle bar drive unit that rotates around the reciprocating axis of the needle, and a needle bar driving unit that rotates in cooperation with the needle. a hook drive unit that rotates the hook around the reciprocating axis of the needle, a table that transfers the work cloth in the XY force direction, and a needle bar drive unit and hook drive unit that are synchronized with the transfer direction of the table. , and a drive device that rotates the needle and the hook so that the direction of the needle and hook is the same as the direction in which the workpiece cloth is transported. It is connected to a differential gear system to absorb the timing deviation of the hook.
本発明の実施例によって、差動歯車装置のブラケットに
取付けた歯車を前記駆動装置によって回転させる。According to an embodiment of the present invention, a gear mounted on a bracket of a differential gear is rotated by the drive device.
他の実施例によって、針棒に形成した孔に上糸を通す。According to another embodiment, the upper thread is passed through a hole formed in the needle bar.
立里
本発明によって９通常の釜駆動装置に差動歯車装置を介
挿することによって、釜を回動させた時の針に対するタ
イミングのずれを吸収し、パーツエフトスチッチを完全
に実施できる。According to the present invention, by inserting a differential gear device into a normal hook driving device, it is possible to absorb the timing deviation with respect to the hand when rotating the hook, and to completely implement parts-free stitching.
更に、上糸を針棒内に形成した孔を通すことによって、
上糸の絡みを防止できる。Furthermore, by passing the upper thread through the hole formed in the needle bar,
Prevents the upper thread from getting tangled.
実１員
本発明を例示とした実施例並びに図面について説明する
。EMBODIMENT OF THE INVENTION Examples and drawings illustrating the present invention will be described.
第１図は本発明によるパーツエフトスチッチ縫ミシン１
０の要部を示す８通常の縫製機構は省略するが、上軸１
１の回転によって天秤２．針３を駆動する。上軸１１に
固着したスプロケット歯車１２からタイミングベルト１
３．スプロケット歯車１４を経て右下軸１５を駆動する
。右下軸１５と左下軸１８との間に本発明によって差動
歯車１６を介挿する。差動歯車１６はブラケット】７に
取付けられ、ブラケット１７に平歯車２３が固着され平
歯車２４によって後述の通りに回転可能とする。Fig. 1 shows a parts-eft stitch sewing machine 1 according to the present invention.
8 showing the main parts of 0. The normal sewing mechanism is omitted, but the upper shaft 1
By rotation of 1, the balance 2. Drive needle 3. Timing belt 1 from sprocket gear 12 fixed to upper shaft 11
3. The lower right shaft 15 is driven via the sprocket gear 14. According to the present invention, a differential gear 16 is inserted between the lower right shaft 15 and the lower left shaft 18. The differential gear 16 is attached to a bracket [7], and a spur gear 23 is fixed to the bracket 17 so that the differential gear 16 can be rotated by a spur gear 24 as described below.
左下軸Ｉ８の左端に固着した傘歯車の組１９．斜歯歯車
の組２０．平歯車の組２１を介して釜２２を回転させる
。この際、送り方向が変化しない時は平歯車２４が動か
ないから平歯車２３．ブラケッＨ７が固定するため、釜
２２は回転しない。Bevel gear set 19 fixed to the left end of the lower left shaft I8. Helical gear set 20. The hook 22 is rotated via a set of spur gears 21. At this time, since the spur gear 24 does not move when the feeding direction does not change, the spur gear 23. Since the bracket H7 is fixed, the hook 22 does not rotate.
本発明によるパーツエフトスチッチ縫い機構を以下説明
する。The part-eft stitch sewing mechanism according to the present invention will be explained below.
段歩モータ３０によって送り軸３１を回転させ、斜出歯
車の組３２．垂直軸３３．斜歯歯車の組３４．横軸３５
、斜出歯車の組３６．垂直軸３７を経て長い平歯車３８
を回転させる。山＋＋＜３８に噛合う平歯車３９を針棒
４０に取付け、針３を中心として所要角度回転させて針
３の向きと釜の方向の差異によるピッチステッチの形成
を防ぐ。The feed shaft 31 is rotated by the stepping motor 30, and the bevel gear set 32. Vertical axis 33. Helical gear set 34. Horizontal axis 35
, bevel gear set 36. Long spur gear 38 via vertical shaft 37
Rotate. A spur gear 39 meshing with the thread ++<38 is attached to the needle bar 40 and rotated by a required angle around the needle 3 to prevent the formation of pitch stitches due to the difference between the direction of the needle 3 and the hook.
モータ３０による送り軸３１の回転は斜出歯車の組４１
に伝達され、釜取付台４２が所要角度回転し、釜２２の
中心を針３の中心に一致させる。同時に、送り軸３１に
固着された平歯車２４が回転し、平歯車２３によってブ
ラケット１７を回転させる。この回転は差動歯車１６に
伝達され、左右下軸１５．１８の速度に所要の差を生じ
させる。これによって、釜と針のタイミングの偏差を生
ずるのを防ぐ。The rotation of the feed shaft 31 by the motor 30 is performed by a set of diagonal gears 41.
The hook mount 42 is rotated by the required angle to align the center of the hook 22 with the center of the needle 3. At the same time, the spur gear 24 fixed to the feed shaft 31 rotates, causing the spur gear 23 to rotate the bracket 17. This rotation is transmitted to the differential gear 16, creating the required difference in speed between the left and right lower shafts 15,18. This prevents timing deviations between the hook and the needle from occurring.
上述の機構において、上糸が歯車３８．３９等に絡むの
を防ぐために、第２図に示す通り１本発明によって針棒
４０に孔４４を設けて上糸を通し、絡むのを完全に防止
する。In the above-mentioned mechanism, in order to prevent the needle thread from getting entangled with the gears 38, 39, etc., as shown in FIG. do.
作動について説明する。The operation will be explained.
通常の縫製に際しては１段歩モータ３０は停止であり、
上軸１１の回転は図示しない機構を経て天秤２、針棒４
０．針３．に伝達されてミシンの上部機構を作動させる
。上軸１１の回転はスプロケット１２゜ベルト１３．ス
プロケット１４．右下軸１５．差動歯車１６、左下軸ｔ
ａ、傘歯車１９．斜歯歯車２０．平歯車２Ｉを経て釜２
２を回転させる。平歯車２３．ブラケット１７は固定で
あり左右下軸１５．１８は同期回転する。During normal sewing, the single step motor 30 is stopped,
The rotation of the upper shaft 11 is caused by a mechanism not shown in the drawings.
0. Needle 3. is transmitted to operate the upper mechanism of the sewing machine. The upper shaft 11 is rotated by a sprocket 12° and a belt 13. Sprocket 14. Lower right axis 15. Differential gear 16, lower left shaft t
a. Bevel gear 19. Helical gear20. Hook 2 via spur gear 2I
Rotate 2. Spur gear23. The bracket 17 is fixed, and the left and right lower shafts 15 and 18 rotate synchronously.
かくして通常の縫製を行う。In this way, normal sewing is performed.
送り方向を変えるために段歩モータ３０を回転させれば
、送り軸３１が回転する。上部機構に対して斜面歯車の
組３２，３４，３６．軸３３，３５．３７を経て平歯車
３８が回転し平歯車３９によって針３を中心として所要
角度回転させて送り方向変化に際しての針の方向を所定
方向としヒツチステッチの形成を防ぐ。When the stepping motor 30 is rotated to change the feeding direction, the feeding shaft 31 is rotated. For the upper mechanism, bevel gear sets 32, 34, 36. A spur gear 38 is rotated via the shafts 33, 35, 37, and a spur gear 39 rotates the needle 3 by a predetermined angle to set the needle in a predetermined direction when the feed direction changes, thereby preventing the formation of hit stitches.
ミシンの下部機構に対しては送り軸３１の回転は斜面歯
車４１を経て釜取付台４２が針３を中心として上部と同
じ角度だけ回動し、針３と釜２２の相対関係は変化しな
い、しかし、この場合に釜取付台４２が回転した角度だ
け傘歯車１９の相手側の歯車も回転し、それに連結され
ている釜が回転するため針３と釜２２との回転のタイミ
ングにずれを生ずる。このずれを修正するために、送り
軸３１に取付けた平歯車２４に噛合う平歯車２３を差動
歯車１６のブラケット１７に固着され、ブラケット１７
をある角度回動させる。このため左右下軸１５．１８間
に速度差が生じ８釜２２の回転を早くし又は遅くする。With respect to the lower mechanism of the sewing machine, the rotation of the feed shaft 31 passes through the inclined gear 41, and the hook mount 42 rotates by the same angle as the upper part around the needle 3, and the relative relationship between the needle 3 and the hook 22 does not change. However, in this case, the gear on the other side of the bevel gear 19 also rotates by the angle that the hook mounting base 42 rotates, and the hook connected thereto also rotates, resulting in a shift in the timing of rotation between the needle 3 and the hook 22. . In order to correct this deviation, the spur gear 23 that meshes with the spur gear 24 attached to the feed shaft 31 is fixed to the bracket 17 of the differential gear 16.
Rotate it by a certain angle. For this reason, a speed difference occurs between the left and right lower shafts 15 and 18, causing the rotation of the eight hooks 22 to speed up or slow down.
これによって、針３と釜２２との間のタイミングのずれ
を吸収する。This absorbs the timing deviation between the needle 3 and the hook 22.
上部機構の送り方向変更に際して上糸を針棒４０の孔４
４を通し、これによって上糸が平歯車３８．３９等に絡
むことを防止する。When changing the feed direction of the upper mechanism, insert the upper thread into the hole 4 of the needle bar 40.
4, thereby preventing the upper thread from becoming entangled with the spur gears 38, 39, etc.
発皿豊班来
本発明によって、送り方向変化機構を凡て歯車機構とし
たため、連結運動機構に遊びが少ないから、針と釜がタ
イミングの狂いなく縫が正確にできる上、高速運転も可
能である。また送り方向変化機構の下部機構に差動歯車
機構を採用したため通常の縫製に対する影響はなく、送
りの針と釜との間のタイミングのずれは確実に吸収され
１機構も簡単になる。According to the present invention, the feed direction changing mechanism is entirely a gear mechanism, so there is little play in the connecting movement mechanism, so sewing can be performed accurately without timing errors between the needle and hook, and high-speed operation is also possible. be. Furthermore, since a differential gear mechanism is adopted for the lower mechanism of the feeding direction changing mechanism, there is no effect on normal sewing, and the timing deviation between the feeding needle and the hook is reliably absorbed, making the mechanism simple.
【図面の簡単な説明】
第１図は本発明によるパーツエフトスチッチミシンの通
常の縫製機構を除去した断面図、第２図は第１図の一部
を拡大し糸通し部を示す部分断面図である。
２０１．天秤 ３１０．針 １１１．上軸１２．１４．
、、スプロケット １３１．ベルト１５．１８．、、下
軸 １６０．差動歯車 １７１．ブラケット１９０．傘
歯車 ２１，２３，２４．、平歯車 ２２９．釜３０１
１段歩モータ ２０．３２，３４，３６，４１．、斜面
歯車３３．３５，３７．、軸 ３８，３９．、、平歯車
４００．針棒４２５．釜取付台 ４４０．糸通し孔
第
！
図[Brief Description of the Drawings] Fig. 1 is a cross-sectional view of a parts-efto-stitch sewing machine according to the present invention with the normal sewing mechanism removed, and Fig. 2 is a partial cross-sectional view of a part of Fig. 1 enlarged to show the threading section. It is. 201. Balance 310. Needle 111. Upper axis 12.14.
,, Sprocket 131. Belt 15.18. ,,lower axis 160. Differential gear 171. Bracket 190. Bevel gear 21, 23, 24. , spur gear 229. Pot 301
1-step step motor 20.32, 34, 36, 41. , slope gears 33, 35, 37. , axis 38, 39. ,, spur gear 400. Needle bar 425. Pot mounting stand 440. Threading hole number! figure
Claims (1)
させる針棒駆動ユニットと、針に共働して回転駆動され
る釜と、釜を針の往復運動軸線を中心として回動させる
釜駆動ユニットと、加工布をＸＹ方向に移送するテーブ
ルと、テーブルの移送方向に同期して針棒駆動ユニット
と釜駆動ユニットとを回動させ針と釜の向きを加工布の
移送方向と同方向とする駆動装置とを含むミシンにおい
て、 釜の回転駆動装置に差動歯車装置を介挿し、前記駆動装
置と差動歯車装置とを連結して釜のタイミングのずれを
吸収することを特徴とする自動縫ミシン。 ２、前記差動歯車装置のブラケットに取付けた歯車を前
記駆動装置によって回転させる請求項１記載のミシン。 ３、前記針棒に形成した孔に上糸を通す請求項１記載の
ミシン。[Scope of Claims] 1. A needle that moves reciprocally, a needle bar drive unit that rotates the needle about its axis of reciprocating movement, a hook that is rotationally driven in cooperation with the needle, and a hook that moves the hook to move the needle back and forth. A hook drive unit that rotates around an axis, a table that transfers the work cloth in the XY direction, and a needle bar drive unit and hook drive unit that rotate in synchronization with the transfer direction of the table to change the direction of the needle and hook. In a sewing machine that includes a drive device that moves in the same direction as the workpiece cloth transfer direction, a differential gear device is inserted into the rotary drive device of the hook, and the drive device and the differential gear device are connected to correct the timing shift of the hook. An automatic sewing machine that absorbs 2. The sewing machine according to claim 1, wherein a gear attached to a bracket of the differential gear device is rotated by the drive device. 3. The sewing machine according to claim 1, wherein the needle thread is passed through a hole formed in the needle bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1248585A JP2834490B2 (en) | 1989-09-25 | 1989-09-25 | Automatic sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1248585A JP2834490B2 (en) | 1989-09-25 | 1989-09-25 | Automatic sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03111081A true JPH03111081A (en) | 1991-05-10 |
| JP2834490B2 JP2834490B2 (en) | 1998-12-09 |
Family
ID=17180313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1248585A Expired - Fee Related JP2834490B2 (en) | 1989-09-25 | 1989-09-25 | Automatic sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2834490B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120079451A (en) | 2011-01-04 | 2012-07-12 | 쥬키 가부시키가이샤 | Sewing machine |
| JP5632949B1 (en) * | 2013-05-31 | 2014-11-26 | ハムス株式会社 | Sewing machine and needle bar |
| CN111088611A (en) * | 2018-10-24 | 2020-05-01 | 拓卡奔马机电科技有限公司 | Rotating shuttle angle adjusting mechanism and sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63189192A (en) * | 1987-02-02 | 1988-08-04 | ブラザー工業株式会社 | Sewing machine |
| JPS6426384U (en) * | 1987-08-07 | 1989-02-14 | ||
| JPH0260687A (en) * | 1988-08-26 | 1990-03-01 | Agency Of Ind Science & Technol | Sewing machine |
-
1989
- 1989-09-25 JP JP1248585A patent/JP2834490B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63189192A (en) * | 1987-02-02 | 1988-08-04 | ブラザー工業株式会社 | Sewing machine |
| JPS6426384U (en) * | 1987-08-07 | 1989-02-14 | ||
| JPH0260687A (en) * | 1988-08-26 | 1990-03-01 | Agency Of Ind Science & Technol | Sewing machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120079451A (en) | 2011-01-04 | 2012-07-12 | 쥬키 가부시키가이샤 | Sewing machine |
| EP2476789A2 (en) | 2011-01-04 | 2012-07-18 | JUKI Corporation | Sewing Machine |
| EP2476789A3 (en) * | 2011-01-04 | 2014-10-29 | JUKI Corporation | Sewing Machine |
| JP5632949B1 (en) * | 2013-05-31 | 2014-11-26 | ハムス株式会社 | Sewing machine and needle bar |
| WO2014192179A1 (en) * | 2013-05-31 | 2014-12-04 | ハムス株式会社 | Sewing machine and needle bar |
| CN111088611A (en) * | 2018-10-24 | 2020-05-01 | 拓卡奔马机电科技有限公司 | Rotating shuttle angle adjusting mechanism and sewing machine |
| CN111088611B (en) * | 2018-10-24 | 2021-07-30 | 拓卡奔马机电科技有限公司 | Rotating shuttle angle adjusting mechanism and sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2834490B2 (en) | 1998-12-09 |
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