JP2583088B2 - Repair method of needle thread break in multi-head sewing machine - Google Patents
Repair method of needle thread break in multi-head sewing machineInfo
- Publication number
- JP2583088B2 JP2583088B2 JP63012177A JP1217788A JP2583088B2 JP 2583088 B2 JP2583088 B2 JP 2583088B2 JP 63012177 A JP63012177 A JP 63012177A JP 1217788 A JP1217788 A JP 1217788A JP 2583088 B2 JP2583088 B2 JP 2583088B2
- Authority
- JP
- Japan
- Prior art keywords
- sewing
- sewing machine
- needle
- thread
- upper thread
- 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 - Fee Related
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- Sewing Machines And Sewing (AREA)
- Automatic Embroidering For Embroidered Or Tufted Products (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は並置された複数台のミシンによって夫々縫
製をする場合において、その内の一部のミシンにおいて
上糸切れが生じた場合にその補修を行う方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a case where sewing is performed by a plurality of sewing machines arranged side by side, and when a needle thread breakage occurs in some of the sewing machines, the repair is performed. On how to do.
多頭ミシンとしては例えば第８図に示されるようなも
のが知られている。即ち、1a,1b,1cは相互に並置された
複数のミシンを示す。各ミシンにおいて、２は針板で、
針孔３を有する。４は針板２の下側に回動自在に配設さ
れた釜で、下糸５を繰り出し得るようになっている。６
は釜４に備わっている剣先を示す。７は針板２の上方に
上下動自在に配設された針である。８は針７を通して供
給される上糸を示す。各ミシン1a,1b,1cにおける針７と
釜４とは相互に連動作動するようになっており、又針の
駆動機構の途中に介設された目飛び用の機構によって針
７の作動の停止を可能にしてある。さらに、各ミシンに
おける釜４は共通の駆動装置に連結されて、相互に連動
作動するようになっている。９は各ミシンの針板の上側
に設けた布駆動部材を示す。この部材は第８図の例では
各ミシンのものが相互に一体に形成されて全ミシンに跨
る大きな枠体となっており、それに各ミシンの針板上に
おいて縫製（例えば刺繍）を施すべき一連の布10が付し
てある。この枠体は周知の駆動装置に連結されている。
尚各ミシンの針板の上方に夫々布が付された小型の布駆
動部材（例えば刺繍枠）が配設され、それらが上記駆動
装置に連結される場合もある。For example, a multi-head sewing machine as shown in FIG. 8 is known. That is, 1a, 1b, and 1c indicate a plurality of sewing machines juxtaposed with each other. In each sewing machine, 2 is a needle plate,
It has a needle hole 3. Reference numeral 4 denotes a shuttle rotatably disposed below the needle plate 2 so that the lower thread 5 can be fed out. 6
Indicates a sword point provided on the shuttle 4. Reference numeral 7 denotes a needle disposed above the needle plate 2 so as to be vertically movable. Reference numeral 8 denotes an upper thread supplied through the needle 7. The needle 7 and the shuttle 4 in each of the sewing machines 1a, 1b, 1c are operated in conjunction with each other, and the operation of the needle 7 is stopped by a skipping mechanism provided in the middle of the needle driving mechanism. Is made possible. Further, the shuttle 4 in each sewing machine is connected to a common driving device so as to operate in conjunction with each other. Reference numeral 9 denotes a cloth driving member provided above the needle plate of each sewing machine. In the example of FIG. 8, the members of the sewing machines are formed integrally with each other to form a large frame extending over the entire sewing machine, and a series of sewing (for example, embroidery) is performed on the needle plate of each sewing machine. Cloth 10 is attached. This frame is connected to a known drive device.
A small cloth driving member (for example, an embroidery frame) provided with a cloth is provided above the needle plate of each sewing machine, and may be connected to the driving device.
このような装置においては、各ミシンにおける布駆動
部材９を相互に連動的に横移動させて、上糸８と下糸５
とにより、各ミシンの針板上にある布に対して縫製を行
なう。その過程において、第８図に示されるように一部
のミシン1bにおいて上糸８が切れると、その状態から慣
性乃至は周知の上糸切検知装置の検知から停止作動まで
の時間的な遅れによって、第８図の状態から数針縫い進
んだ第９図の状態で装置が停止する。停止の後、上記ミ
シン1bにおいて補修縫いを行う為に、第10図に矢印13で
示される如く布駆動部材９を戻すと共に、上糸８を針７
の針孔に通し直す。次に他のミシン1a,1cの針７の作動
を止めた状態で第11図に示されるように補修の縫製を行
う。その後は全てのミシンの針７を作動させて第12図に
示されるように縫製を行う。このような装置は例えば特
公昭59−39540号公報にも示されている。In such an apparatus, the cloth driving member 9 in each sewing machine is laterally moved in conjunction with each other, and the upper thread 8 and the lower thread 5 are moved.
Thus, the sewing on the cloth on the needle plate of each sewing machine is performed. In the process, as shown in FIG. 8, when the upper thread 8 breaks in some of the sewing machines 1b, due to inertia or a time delay from the detection of the known upper thread break detecting device to the stop operation from that state. Then, the apparatus stops in the state of FIG. 9 where several stitches have been advanced from the state of FIG. After the stop, in order to perform repair sewing on the sewing machine 1b, the cloth driving member 9 is returned as shown by an arrow 13 in FIG.
Through the needle hole. Next, while the operation of the needles 7 of the other sewing machines 1a and 1c is stopped, repair sewing is performed as shown in FIG. Thereafter, all the sewing needles 7 are operated to perform sewing as shown in FIG. Such an apparatus is also disclosed in, for example, Japanese Patent Publication No. 59-39540.
この従来の多頭ミシンにおける上糸切れ補修方法で
は、上記第11図のように補修縫いを行う場合、ミシン1
a,1cにおいては布駆動部材９の横移動の為に下糸５が弛
む。すると例えばミシン1aの如く、弛んだ下糸５に回転
する釜４の剣先６が引っ掛かり、第12図に示される如く
下糸５を切断してしまう問題点があった。このような剣
先６によって下糸を切断した場合、その下糸５は釜４に
極めて近い位置で切断されかつその先端5bが釜内に隠れ
てしまう為、次に針７が下降してきて上糸８のループと
下糸５との絡みを取ろうとしてもそれが達成されなくな
ってしまい、縫製が不能となる問題点があり、その解決
の為には人手でもって上記切れた下糸を繰り出す作業を
行わねばならぬ煩わしさがあった。In this conventional method of repairing a needle thread break in a multi-head sewing machine, when performing repair stitching as shown in FIG.
In a and 1c, the lower thread 5 is loosened due to the lateral movement of the cloth driving member 9. Then, as in the case of the sewing machine 1a, for example, there is a problem that the blade point 6 of the rotating shuttle 4 is caught by the slack lower thread 5 and cuts the lower thread 5 as shown in FIG. When the bobbin thread is cut by such a sword tip 6, the bobbin thread 5 is cut at a position very close to the shuttle 4 and its tip 5b is hidden in the shuttle. There is a problem that even if an attempt is made to remove the entanglement between the loop 8 and the bobbin thread 5, it cannot be achieved, and sewing cannot be performed. Had to be done.
本発明は以上のような点に鑑みてなされたもので、そ
の目的とするところは、下糸が弛む状態となる前に、そ
の下糸を上糸とのからみ用のリード部を残して予め切断
することにより、補修縫いが完了した後、他のミシンに
よる縫製の再開をスムーズに行うことができるようにし
た多頭ミシンにおける上糸切れ補修方法を提供すること
である。The present invention has been made in view of the above points, and its purpose is to leave the lower thread in advance of leaving the lead portion for entanglement with the upper thread before the lower thread becomes slack. It is an object of the present invention to provide a method for repairing a broken upper thread in a multi-head sewing machine, in which after the repair sewing is completed, the sewing can be smoothly resumed by another sewing machine.
上記目的を達成する為に、本願発明は前記請求の範囲
記載の通りの手段を講じたものであって、その作用は次
の通りである。In order to achieve the above object, the present invention employs the means described in the claims, and the operation is as follows.
複数のミシンにおいて縫製中に一部のミシンに上糸切
れが生じた場合、ミシンを停止の後、布駆動部材を戻
し、然る後補修の縫製をするから、いずれのミシンにお
いても綺麗な縫製ができる。布駆動部材を戻す場合、上
糸切れを生じたミシン以外のミシンにおいては下糸をそ
れにリード部を残して切るから、上記補修の縫製の場
合、それらのミシンにおける下糸の弛みは生じない。補
修の縫製の終了後上記下糸を切ったミシンによる縫製の
再開の場合、上記リード部の存在により上糸との絡みが
支障なく行なわれる。If the upper thread breaks in some of the sewing machines during sewing on multiple sewing machines, the sewing machine is stopped, then the cloth drive member is returned and the sewing is repaired. Can be. When the cloth driving member is returned, the lower thread is cut leaving the lead portion of the sewing machine other than the sewing machine in which the upper thread break has occurred, so that in the case of the above-described repair sewing, the lower thread does not loosen in those sewing machines. In the case where sewing is restarted by the sewing machine that cuts the lower thread after the completion of the repair sewing, the entanglement with the upper thread is performed without any trouble due to the presence of the lead portion.
以下本願の実施例を示す図面第１図について説明す
る。同図中の符号で第８図と同一の符号は機能上相互に
均等構成の部分を現すものとして、その部分についての
詳しい説明は省略する。図において、11は各ミシン1a,1
b,1cにおい針板２の下側に配設した下糸切断装置で、下
糸５を、釜４から引き出されている部分の再縫製時に上
糸との絡みを可能にするリード部5a（第４図参照）を残
して切断し得るように周知の如く構成してある（例えば
実開昭60−106589号公報参照）。上記リード部5aはその
長さが例えば30mmで、又その先端は釜４の前面側に垂れ
た状態になっている。尚この下糸切断装置11は、針板の
下側においてリード部5aの先端部を保持体でもって保持
し得るような構造のものであっても良い。（例えば実開
昭58−181384号公報参照） 上記のような構成の多頭ミシンにおいては、第１図に
示されるように縫製している過程において、第２図に示
される如くミシン1bにおいて上糸８が切断すると、従来
と同様の事情でもって第３図に示されるように３針程度
の針数だけ縫い進んで停止する。この場合、ミシン1bは
空縫いの状態となっている。FIG. 1 shows an embodiment of the present invention. The same reference numerals in FIG. 8 as those in FIG. 8 indicate portions having the same configuration in terms of function, and detailed description of those portions will be omitted. In the figure, 11 is each sewing machine 1a, 1
b, 1c A lower thread cutting device disposed below the needle plate 2 to lead the lower thread 5 to a lead portion 5a ( It is configured in a known manner so that it can be cut while leaving it (see FIG. 4) (for example, see Japanese Utility Model Laid-Open No. 106589/1985). The lead portion 5a has a length of, for example, 30 mm, and its tip is in a state of hanging down on the front side of the shuttle 4. The bobbin thread cutting device 11 may have a structure capable of holding the tip of the lead portion 5a with a holding body below the needle plate. (See, for example, Japanese Utility Model Application Laid-Open No. 58-181384) In the multi-head sewing machine having the above-described configuration, in the process of sewing as shown in FIG. 1, the upper thread of the sewing machine 1b as shown in FIG. When the cutter 8 is cut, the sewing machine advances the sewing by about three stitches and stops, as shown in FIG. In this case, the sewing machine 1b is in the state of empty stitching.
このような状態となったならば第４図に示されるよう
に全ミシン1a,1b,1cの下糸切断装置11を作動させて下糸
５を切断する。この操作は公知の制御装置によって自動
的に行っても良いし、或いは作業員が目で見ながら手動
で行っても良い。尚下糸の切断は上糸切れ以外のミシン
1a,1cのみ行なってもよい。次に上記のような下糸切断
の後、布駆動部材９を上糸切れを生じた地点、又は第５
図に示されるようにその地点を越えてそれよりも前の地
点まで、即ち第５図に示されるようにミシン1bにおける
空縫いの針数とミシン1bにおいて必要とする重ね縫いの
針数を加えた針数に対応する分だけ戻す（ステッチバッ
ク）。尚上記重ね縫いの針数は通常１乃至３である。こ
の場合全ミシンは停止状態である。又ミシン1bにおいて
は上糸８を針７に通し直す。この作業は上記第３図の状
態の次に行っても良い。In such a state, the lower thread 5 is cut by operating the lower thread cutting device 11 of all the sewing machines 1a, 1b, 1c as shown in FIG. This operation may be automatically performed by a known control device, or may be manually performed by an operator while visually checking. The lower thread is cut by a sewing machine other than the upper thread break.
Only 1a and 1c may be performed. Next, after cutting the lower thread as described above, the cloth driving member 9 is moved to the point where the upper thread break occurs, or to the fifth point.
As shown in the figure, the number of stitches of the empty stitch in the sewing machine 1b and the number of stitches of the overlap stitch required in the sewing machine 1b are added to the point before and beyond that point, that is, as shown in FIG. Return by the number of stitches (stitch back). The number of stitches for the above-mentioned overlap sewing is usually 1 to 3. In this case, all the sewing machines are stopped. In the sewing machine 1b, the upper thread 8 is passed through the needle 7 again. This operation may be performed after the state shown in FIG.
次に第５図の状態からミシン1a,1cの針の作動を停止
させた目飛びの状態で、上糸切れを生じた地点まで縫製
を行う。その結果、第６図に示されるようにミシン1bに
おいては重ね縫い14と補修縫い15が行われる。上記重ね
縫い14及び補修縫い15の場合、布駆動部材９が動いて
も、ミシン1a,1cにおける下糸５は予め切断されている
為弛むことは無い。従って釜４が回動してもその剣先６
が下糸５に引き掛かるような事故は生じない。上記第６
図のような状態になったならば全てのミシンの針７を作
動させて、第７図の如く全ミシンによる縫製を進める。
尚第６図の状態になったところで全ミシンの作動を一旦
停止し、然る後ミシン1a,1cの針７の作動を可能な状態
にして第７図のように全てのミシン1a〜1cを再スタート
しても、或いはミシンの作動は継続させたままで第６図
のような状態となった直後に他のミシン1a,1cの針７の
作動を可能にしても良い。Next, sewing is performed from the state shown in FIG. 5 to the point where the needle thread break has occurred in the stitch skipping state in which the operation of the needles of the sewing machines 1a and 1c is stopped. As a result, in the sewing machine 1b, the overlap sewing 14 and the repair sewing 15 are performed as shown in FIG. In the case of the lap stitch 14 and the repair stitch 15, even when the cloth driving member 9 moves, the lower thread 5 in the sewing machines 1a and 1c is cut in advance and does not loosen. Therefore, even when the shuttle 4 rotates, its sword 6
However, an accident such as catching on the lower thread 5 does not occur. 6th above
When the state shown in the figure is reached, the needles 7 of all the sewing machines are operated, and the sewing by all the sewing machines is advanced as shown in FIG.
When the state shown in FIG. 6 is reached, the operation of all the sewing machines is temporarily stopped, and thereafter, the operation of the needles 7 of the sewing machines 1a and 1c is enabled, and all the sewing machines 1a to 1c are operated as shown in FIG. The needle 7 of another sewing machine 1a, 1c may be enabled to operate even after restarting or immediately after the state of FIG. 6 is reached while the operation of the sewing machine is continued.
以上のように本発明にあっては、多頭ミシンにおける
一つのミシン1bの上糸８が切れて、ミシンがすぐに止ま
らず上糸８が無いまま縫製動作をした場合でも、布駆動
部材９を上記上糸８が切れた地点まで戻し、次に上記上
糸８が切れたミシン1bのみ補修の縫製を行ない、それが
他のミシン1a,1cと同じ縫い地点まで揃ったならば全ミ
シンによる縫製を再開することによって、全てのミシン
においていずれも綺麗に縫製ができる効果がある。As described above, in the present invention, even when the upper thread 8 of one of the sewing machines 1b in the multi-head sewing machine is cut and the sewing machine does not stop immediately and performs the sewing operation without the upper thread 8, the cloth driving member 9 is removed. Return to the point where the upper thread 8 has been cut, and then perform sewing for repair only on the sewing machine 1b where the upper thread 8 has been cut. If the sewing is completed up to the same sewing point as the other sewing machines 1a and 1c, sew all sewing machines. By restarting the sewing, there is an effect that all the sewing machines can sew neatly.
しかも本発明の構成は、上記のように布駆動部材９を
戻すものでも、その場合、他のミシン1a,1bは予め下糸
５を能動的に切ってそれから布駆動部材９を戻す点に特
徴がある。このことは、従来の問題点即ち上記補修の縫
製を行なうときに上記の他のミシン1a,1cの下糸５がた
るんで、回転する釜４の剣先６でその下糸５を不測的に
切ってしまうという問題点を解決する上に効果がある。Moreover, the configuration of the present invention is characterized in that the cloth driving member 9 is returned as described above, but in this case, the other sewing machines 1a and 1b actively cut the lower thread 5 in advance and then return the cloth driving member 9. There is. This is a problem of the prior art, that is, the lower thread 5 of the other sewing machines 1a and 1c is slackened when the above-mentioned sewing is performed, and the lower thread 5 is unexpectedly cut by the blade 6 of the rotating shuttle 4. This is effective in solving the problem of being lost.
しかも上記のように下糸５を能動的に切るものでも、
釜４から引き出されている部分に上糸との絡み用のリー
ド部5aを残して切るから、他のミシン1a,1cによる縫製
を再開する場合、その再開がスムーズに行なえる効果が
ある。Moreover, even if the lower thread 5 is actively cut as described above,
Since the lead portion 5a for entanglement with the upper thread is cut off at the portion pulled out from the shuttle 4, the sewing can be smoothly resumed when the sewing by the other sewing machines 1a and 1c is restarted.
更に、布駆動部材９を上記上糸切れを生じた地点より
も前の地点まで戻すことによって、上記補修の縫製をす
る場合、上記切れた上糸８の端の上に新しい上糸を重ね
た縫ってその糸でもって上記の切れた端を押え込むこと
ができ、補修部分の仕上りを綺麗にできる効果がある。Furthermore, when the cloth drive member 9 is returned to a point before the point where the upper thread break has occurred, when performing the repair sewing, a new upper thread is stacked on the end of the cut upper thread 8. The thread can be sewn and the cut end can be pressed down with the thread, and the finish of the repaired portion can be made beautiful.
図面は本願の実施例を示すもので、第１図乃至第７図は
動作説明図、第８図乃至第12図は従来の動作説明図。 1a,1b,1c……ミシン、４……釜、５……下糸、７……
針、８……上糸、11……下糸切断装置。The drawings show an embodiment of the present application. FIGS. 1 to 7 are explanatory diagrams of the operation, and FIGS. 8 to 12 are explanatory diagrams of the conventional operation. 1a, 1b, 1c ... sewing machine, 4 ... hook, 5 ... bobbin thread, 7 ...
Needle, 8 ... Upper thread, 11 ... Lower thread cutting device.
Claims (4)
釜と、針板の上方に上下動自在に備えられた針とを備え
て、上記釜から供給される下糸及び上記針を通して共通
される上糸により、上記針板の上に置かれる布駆動部材
に付された状態の布を縫製するようにしてあるミシンを
複数台並置し、上記各ミシンの針と釜とは相互に連動さ
せると共に、上記の各ミシンの針板上にある布駆動部材
は相互に連動的に横移動させ、上記の各ミシンの針板上
にある布に対して縫製を行ない、その縫製の過程におい
て一部のミシンについて上糸切れが生じた場合には、各
ミシンの作動を止め、上記布駆動部材を上記上糸切れを
生じた地点まで戻し、次に上記上糸切れを生じたミシン
を除くミシンの針の作動を止めた状態で補修の縫製を行
ない、然る後全てのミシンの針を作動させて縫製を再開
するようにしている多頭ミシンにおける上糸切れ補修方
法において、上記一部のミシンについて上糸切れが生じ
て各ミシンの作動を止めた場合には、そのミシン以外の
ミシンにおける下糸を、夫々釜から引き出されている部
分に上糸との絡み用のリード部を残して切断し、その切
断の後上記布駆動部材の戻しを行なうことを特徴とする
多頭ミシンにおける上糸切れ補修方法。1. A lower thread supplied from the shuttle and the needle provided with a needle plate, a shuttle rotatably provided below the needle plate, and a needle vertically movable above the needle plate. A plurality of sewing machines arranged to sew a cloth attached to a cloth driving member placed on the needle plate by a common upper thread are arranged side by side, and the needle and the shuttle of each sewing machine are mutually And the cloth driving members on the needle plates of the respective sewing machines are laterally moved in conjunction with each other to sew the cloth on the needle plates of the respective sewing machines. When the upper thread breakage occurs in some of the sewing machines in the above, the operation of each sewing machine is stopped, the cloth driving member is returned to the point where the upper thread break has occurred, and then the sewing machine having the upper thread breakage is removed. The sewing of the repair is performed with the needle of the sewing machine removed except the operation, and then all In the method of repairing a needle thread break in a multi-head sewing machine in which a sewing machine needle is operated to restart sewing, when the upper thread breaks in some of the sewing machines and the operation of each sewing machine is stopped, the sewing machine is stopped. The multi-head sewing machine is characterized in that the lower thread of the sewing machine other than the above is cut while leaving a lead portion for entanglement with the upper thread in a portion pulled out from the shuttle, and after the cutting, the cloth driving member is returned. How to repair upper thread break in sewing machine.
引き出されている部分に上糸との絡み用のリード部を残
して切断するようにした下糸切断装置を夫々配設し、そ
れらの下糸切断装置でもって下糸の切断を行なう請求項
１記載の多頭ミシンにおける上糸切れ補修方法。2. A bobbin thread cutting device which cuts a bobbin thread at a portion where the bobbin thread is pulled out from the shuttle leaving a lead portion for entanglement with the upper thread under the needle plate of each sewing machine. 2. The method for repairing a broken upper thread in a multi-head sewing machine according to claim 1, wherein said lower thread is cut by said lower thread cutting device.
てそれよりも前の地点まで戻し、その地点から補修の縫
製を行なう請求項１記載の多頭ミシンにおける上糸切れ
補修方法。3. The method according to claim 1, wherein the cloth driving member is returned to a point before and beyond the point where the upper thread break has occurred, and the repair sewing is performed from that point.
てそれよりも前の地点まで戻し、その地点から補修の縫
製を行なう請求項２記載の多頭ミシンにおける上糸切れ
補修方法。4. The method according to claim 2, wherein the cloth driving member is returned to a point before the point at which the upper thread break has occurred, and the repair is sewn from that point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63012177A JP2583088B2 (en) | 1988-01-22 | 1988-01-22 | Repair method of needle thread break in multi-head sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63012177A JP2583088B2 (en) | 1988-01-22 | 1988-01-22 | Repair method of needle thread break in multi-head sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01192861A JPH01192861A (en) | 1989-08-02 |
| JP2583088B2 true JP2583088B2 (en) | 1997-02-19 |
Family
ID=11798143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63012177A Expired - Fee Related JP2583088B2 (en) | 1988-01-22 | 1988-01-22 | Repair method of needle thread break in multi-head sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583088B2 (en) |
-
1988
- 1988-01-22 JP JP63012177A patent/JP2583088B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01192861A (en) | 1989-08-02 |
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