JP3568187B2

JP3568187B2 - Automatic sewing device for sword rags

Info

Publication number: JP3568187B2
Application number: JP15059698A
Authority: JP
Inventors: 昭寿高木
Original assignee: 株式会社友縫機械
Priority date: 1998-05-13
Filing date: 1998-05-13
Publication date: 2004-09-22
Anticipated expiration: 2018-05-13
Also published as: JPH11319353A

Description

【０００１】
【発明の属する技術分野】
本発明は、剣ボロ布を折り込むと共に、かかる剣ボロを袖布に縫着する様にした剣ボロの自動縫着装置に関する。
【０００２】
【従来の技術】
従来、剣ボロを袖布の袖口あきに縫着する前作業として、剣ボロ布の一側方部位を上方に折り返してプレスし、かかる剣ボロ布上の他側方寄りの所定位置に型板を載置し、該型板の先端側の一方の斜辺部、他方の斜辺部、一側辺部、及び他側辺部に順次沿わせて剣ボロ布の外周部分を順次折り込み、各折込み作業後にアイロン等によりプレスして、剣ボロを折込み形成していた。
そして、上記剣ボロをセットした袖布をミシン本体の補助テーブル上に載置すると共に、ミシン本体における針の下方に縫着開始部位を位置させた後、押さえ板を下ろしてミシン本体を作動させ、補助テーブル側の送り装置で袖布を送りながら縫着すべき部分に縫い目を形成すると共に、各部分を縫着後、一旦ミシン本体を停止させ、袖布を回転させて次の縫い目の形成方向を送り方向に揃え、ミシン本体を作動させて縫着することを繰り返して、袖布に剣ボロを縫着していた。
【０００３】
【発明が解決しようとする課題】
しかし、上記した縫着方法にあっては、剣ボロ布の折込み工程と、袖布への剣ボロの縫着工程は別々の場所で行わねばならず、作業スペースが２箇所必要になり、而も一人の作業員が両方の作業を行えば、人件費が減少するが単位時間当たりの処理枚数も減少し、反対に二人の作業員で両方の作業を分担すれば、単位時間当たりの処理枚数が増加するが人件費も増大するため、どちらにしても非経済的であるなど、解決せねばならない課題があった。
而も、剣ボロの外側辺と縫い目の間隔を０．８〜１ｍｍ程度にせねばならず、且つ各辺の縫い目の両端を剣ボロの角部に合わせねばならず、よって熟練者でなければ不可能であった。
【０００４】
【課題を解決するための手段】
本発明は、上記従来技術に基づく、剣ボロ布の折込み作業と、袖布への剣ボロの縫着作業が別個になることにより様々な不具合が生じる課題に鑑み、ミシン本体の設置台上のミシンヘッド下方に、Ｘ−Ｙ方向に移動自在なワークテーブルを設けると共に該ワークテーブル上のミシンヘッドの直下部に、剣ボロ布を所望の剣ボロ形状に折込む折込み装置を設けた剣ボロの自動縫着装置において、上記折込み装置は、ワークテーブルに設けられ、少なくとも外周形状が剣ボロ形状と合致する針溝が形成された枠板と、剣ボロと合致する形状で、上下動自在に設けられた取付板の先端に設けられ、剣ボロ布をワークテーブル側へ押圧する型板と、剣ボロの長手方向先端側の一方斜辺部に対応する針溝の外側、剣ボロの長手方向先端側に対応する針溝の外側及び剣ボロの長手直交方向両側に対応する針溝の外側にて進退自在にそれぞれ設けられ、型板によりワークテーブル側へ押圧された剣ボロ布の対応する各縁部を型板の上面へ折込む折込板と、該型板の上方にて上下動自在に設けられ、折込まれた剣ボロ布及び該剣ボロ布上にセットされた袖布を針溝に沿って縫着可能に押圧する押さえ板とからなることを特徴としている。
【０００５】
【発明の実施の形態】
以下本発明の実施の形態を図面に基づいて説明する。
図１に示す様に、袖布Ｂに剣ボロＰを縫着する剣ボロの自動縫着装置１にあっては、ミシン本体２の設置台３上にして、ミシンヘッド４と補助テーブル５間に、ＸーＹ方向に移動自在なワークテーブル６を設けると共に、該ワークテーブル６に剣ボロ布Ｗの折込み装置７を配設している。
【０００６】
又、ワークテーブル６は、Ｙ方向に長く、その後端側より先端側へ折込み装置７を設置する切込８が形成されている。
又、ワークテーブル６にあっては、図２、３に示す様に、その下部に配設した上方レール９によりＸ方向に、該上方レール９下方に配設した、上方レール９に対し直角に配設した下方レール１０によりＹ方向に夫々移動自在と成し、Ｘ方向及びＹ方向に単独スライドさせたり、或いは合成スライドさせて、直線、斜線又は曲線の縫い目Ｈを形成可能にしている。
具体的に説明すると、ワークテーブル６下面に上方レール９を、設置台３上面に下方レール１０を夫々固設し、連結板１１の上面に固設した一対の上方スライダー１２、１２ａを上方レール９に下方よりスライド自在に外嵌すると共に、連結板１１の下面に固設した一対の下方スライダー１３、１３ａを下方レール１０に上方よりスライド自在に外嵌している。
【０００７】
又、ワークテーブル６をＸ方向にスライドさせる駆動部１４にあっては、図４に示す様に、ミシン本体２の後面側に配設し、かかる駆動部１４は、一対のプーリー１５、１５ａにベルト１６を巻回し、ワークテーブル６側に連結杆１７の一端をＹ方向にスライド可能に取り付けると共にベルト１６の中間部に連結杆１７の他端を固設している。
又、連結杆１７の一端側を、ワークテーブル６上面に設けたＹ方向に長いリニアウェー１７ａに対しスライド自在なスライダー１７ｂに連結している。
又、ワークテーブル６をＹ方向にスライドさせる駆動部２０にあっては、下方レール１０の両端に配設した一対のプーリー２１、２１ａにベルト２２を巻回すると共に、該ベルト２２と下方スライダー１３、１３ａを連結板２３で連結している。
又、駆動部１４、２０における一方のプーリー１５、２１が装着された軸体２４、２４ａの下端側に装着した大プーリー２５、２５ａと、設置台３に固設したモーター２６、２６ａの駆動軸２７、２７ａに装着した小プーリー２８、２８ａ間にベルト２９、２９ａを巻回して、モーター２６、２６ａの正逆駆動によりワークテーブル６をＸーＹ方向にスライドさせる様にしている。
尚、モーター２６、２６ａは、ミシン本体２の針Ｓが袖布Ｂ及び剣ボロ布Ｗに刺さった状態でワークテーブル６が停止すると共に、袖布Ｂ及び剣ボロ布Ｗから抜けて上がった状態でワークテーブル６が一目分スライドする様に制御され、且つ各辺の縫着長さを初期入力することで、各辺の縫い目Ｈの端部が各角部で確実に止まる様にしている。
【０００８】
又、折込み装置７にあっては、図２、３に示す様に、ワークテーブル６における切込８の先端側にして、ミシンヘッド４の直下部に着脱自在に配設した枠板３０と、枠板３０の外周側に進退自在に配設した複数枚の折込板３１、３１ａ …と、剣ボロ布Ｗの外周部分を所定形状に折り込むための型板３２と、セットされた剣ボロ布Ｗ及び袖布Ｂのワークテーブル６側への押さえ板３３とにより構成されている。
【０００９】
又、枠板３０にあっては、図５、６に示す様に、２枚の板材を積層して形成されたもので、型板３２の先端が嵌まり込む切込３４を形成した上層板３０ａと、針溝３５を形成した下層板３０ｂにより構成し、上層板３０ａにおける切込３４と、下層板３０ｂにおける針溝３５の外周縁部を一致させている。
又、針溝３５にあっては、型板３２の先端部位に略合致すると共に、後述する押さえ板３３における先端部材７１より縦長状のホームベース形状に形成された開口部３５ａの両側部より後方へ、型板３２の両側部位に沿った切込３５ｂ、３５ｃが形成されている。
又、上層板３０ａの後方側の上面両側部に取付片３８、３８ａを外方突設し、該取付片３８、３８ａの前縁部に切込３９、３９ａを形成し、該切込３９、３９ａ内を上方より挿通させたネジ、ボルト等をワークテーブル６に螺入して、ワークテーブル６に枠板３０を固定している。
【００１０】
又、折込板３１、３１ａ …にあっては、剣ボロ布Ｗの先端部位及び両側部位を折り込む様に配置されている。
【００１１】
第１の折込板31にあっては、剣ボロＰにおける先端部の一方の斜辺部Ｔ１を折り込み形成するものにして、剣ボロの長手方向先端側に対応する針溝35の外周縁部の一方の斜辺部36に対し進退自在と成している。
又、第１の折込板31の進退方向は針溝35の長手方向に対し所定角度傾斜させており、第１の折込板31の両側部は針溝35の外周縁部における一方の斜辺部36の両端部より若干内側を通過する様にしている。
又、第１の折込板31の先端の折込辺42にあっては、針溝35の一方の斜辺部36との間隔が先端側へ徐々に拡開する様に形成するのが望ましい。
【００１２】
第２の折込板31a にあっては、剣ボロＰにおける先端部の他方の斜辺部Ｔ２を折り込み形成するものにして、剣ボロの長手方向先端側に対応する針溝35の外側に配置され、その進退方向は針溝35の長手方向に対し平行としている。
又、第２の折込板31a を型板32と同幅か若干幅狭としている。
又、第２の折込板31a の先端部に前方拡開する切欠部40を、該切欠部40の最奥部を第２の折込板31a
の中心より第１の折込板31側に寄せて形成し、かかる切欠部40の両側部に突出片41、41a を形成している。
具体的には、図２に示す様に、Ｖ字切欠40a における第２の折込板31a 側の斜辺部の内端側に逃げ切欠40b を形成して切欠部40と成している。
又、一方の突出片41にあっては、尖端形状にして、その先端より切欠部40の最奥部に至る折込辺42a
を有している。
又、折込辺42a を、針溝35の他方の斜辺部36a との間隔が先端側へ徐々に拡開する様に形成するのが望ましい。
又、他方の突出片41a にあっては、第１の折込板31の上方に重なっている。
【００１３】
第３、第４の折込板31b 、31c にあっては、剣ボロＰにおける両側辺部Ｔ３、Ｔ４を折り込み形成するものにして、剣ボロの長手方向先端側に対応する針溝35の両側方に配置され、その進退方向は針溝35の長手方向に対し直角とし、その先端の折込辺42b
、42c を針溝35の側辺部37、37a と平行としている。
又、第３、第４の折込板31b 、31c 上方に剣ボロ布Ｗの一側縁部を揃えるための定規板90、90a
を、第３、第４の折込板31b 、31c の進退方向にスライド固定自在に設けている。
尚、第１の折込板31と第２の折込板31a の重合部分、及び第２の折込板31a と第３、第４の折込板31b
、31c の重合部分は後者が上となる様に、第１の折込板31の中間部に先端側が低くなる段差部43が、第３、第４の折込板31b 、31c の角部に、当該部位が高くなる段差部44、44a
が夫々形成されている。
又、第１、第２の折込板31、31a …の下方にしてワークテーブル６上にシリンダー45、45a…を、第１、第２の折込板31、31a
…の進退方向に伸縮する様に配設すると共に、該シリンダー45、45a …のロッド46、46a …を第１、第２の折込板31、31a …に固定している。
又、シリンダー45、45a …にあっては、ワークテーブル６の上方に設けられたカバー板6aの下方に設置されている。
そして、第１、第２の折込板31、31a …の先端を、初期状態において針溝35の外縁外側に配置させると共に、針溝35の内縁より内側まで前進する様に進退制御している。
【００１４】
次に、型板３２は、図２、３に示す様に、型板３２の進退手段４７の先端に着脱自在に装着され、該進退手段４７にあっては、Ｙ方向に往復スライド自在な引抜き板４８の前部に一対のバネ板４９、４９ａを介して取付板５０を上下動可能に設けると共に、該取付板５０に型板３２が装着されている。
そして、ワークテーブル６の下面側にシリンダー５１を設けると共に、該シリンダー５１のロッド５２を引抜き板４８の後端部に固設して、シリンダー５１の伸縮により引抜き板４８、即ち型板３２を進退させている。
又、シリンダー５１の側部に並設したレール５３を引抜き板４８の下面に固設すると共に、レール５３に下方よりスライド自在に外嵌したレールガイド５４をワークテーブル６側に固設している。
又、ワークテーブル６の中間部にして枠板３０より後方に、切込８を跨ぐ様に取付枠５５を架設すると共に、該取付枠５５の中央部にプッシャー５６を設け、該プッシャー５６のプッシャーピン５７を取付枠５５上面に対し出没自在と成している。
そして、プッシャーピン５７の出没により型板３２を上下動させる様にし、具体的には、プッシャーピン５７を突出させると、バネ板４９、４９ａが弾性変形して、型板３２が上方へ持ち上がり、プッシャーピン５７を没入させると、バネ板４９、４９ａの弾性復元力により型板３２をワークテーブル６側に押圧する様にしている。
又、図７に示す様に、型板３２の後端側に切込５８、５８ａを設けると共に、該切込５８、５８ａ内を上方より挿通させたネジ、ボルト等を取付板５０に螺入して、該取付板５０に型板３２を固定している。
【００１５】
次に、押さえ板33は、図２、３に示す様に、押さえ板33の上下動手段59の先端に着脱自在に装着され、該上下動手段59にあっては、ワークテーブル６側に一対のバネ板60、60a
を介して連結した連結板61、61a の先端側に押さえ板33の取付板62を設け、他方、ワークテーブル６における切込８の後端側に対設した一対の側板63、63a の後部側間に取付枠65を水平架設し、該取付枠65にバネ板60、60a
が固定されている。
そして、側板63、63a の前部側間に取付枠64を水平架設すると共に、該取付枠6４の前面に押圧シリンダー66を配設し、該押圧シリンダー66のロッド67の先端を、押さえ板33における取付板62上面に連結し、該ロッド67伸縮により押さえ板33を上下動させると共に、ワークテーブル６側に押圧する様にしている。
又、押さえ板33にあっては、図８に示す様に、枠板30における切込34に嵌まり込む押圧部68を上下動手段59への取付部69先端中央部に突設したものにして、押圧部68の外周を、枠板30における針溝35の内側縁部に合致させて、剣ボロ布Ｗの折返し部分を確実に押さえ付け、且つ押さえ板33が剣ボロ布Ｗの縫着作業の邪魔にならない様にしている。
又、押圧部68にあっては、取付部69に一体化された細長板状の中間部材70と、該中間部材70の先端側に所定間隔をあけて配置したホームベース形状の先端部材71と、中間部材70と先端部材71とを連結するクランク軸72により構成されている。
具体的には、中間部材70及び先端部材71の上方にクランク軸72を、その屈曲部73が中間部材70と先端部材71間の間隔部74に配置する様にすると共に、先端部を先端部材71に中間部を中間部材70に回動自在に取着している。
又、屈曲部73にあっては、間隔部74にかからない様にしている。
又、クランク軸72の基端部にピニオン75を装着し、該ピニオン75上方に、押さえ板33の取付部69の上面に設置したシリンダー76のロッド77に装着したラック78を配置歯合させて、ラック78の進退によりクランク軸72を回動させている。
そして、押さえ板33における取付部69の後端側に切込79、79a
を設けると共に、該切込79、79a 内を上方より挿通させたネジ、ボルト等を取付板62に螺入して、該取付板62に押さえ板33を固定している。
又、押さえ板33にあっては、ミシン本体２側に型板32の押さえシリンダー80を配設し、該押さえシリンダー80は押さえ板33の間隔部74を貫通させると共に、そのロッド81を伸長させて型板32を押さえる様にしている。
又、上方待機状態の押さえ板33における先端部材71の上面に当接するストッパー82をミシン本体２に設置している。
【００１６】
又、側板６３、６３ａの下端側をワークテーブル６の下面より下方へ突出させ、かかる側板６３、６３ａの下端部間に取付枠８３を水平架設し、該取付枠８３の上面にシリンダー５１及びレールガイド５４を固設している。
又、プッシャー５６を設けた取付枠５５の両端部に垂下枠８４、８４ａを垂設すると共に、該垂下枠８４、８４ａの下端部間に横枠８５を架設し、該横枠８５下面にＸ方向の上方レール９を固設している。
【００１７】
又、剣ボロ布Ｗにあっては、図１８に示す様に、表側部位Ｗａと裏側部位Ｗｂにより構成され、表側部位Ｗａの幅を型板３２より広くし、裏側部位Ｗｂの外側部に折返し部Ｗｂ１が形成され、かかる裏側部位Ｗｂの外側縁部が最終的に剣ボロＰの側辺部Ｔ３に揃う様に寸法設定されている。
【００１８】
次に本発明に係る剣ボロの自動縫着装置の作用について説明する。
（１）ペダル（図示せず）を踏み、プッシャー５６のプッシャーピン５７を突出させて、型板３２を上動させ、かかる型板３２の下方にして、枠板３０上方に剣ボロ布Ｗを、その外周部分を折込板３１、３１ａ …の先端部上に載置すると共に、剣ボロ布Ｗの一側縁部を該当する定規板９０、９０ａに揃えてセットする（図９参照）。
（２）ペダル（図示せず）を開放してプッシャー５６のプッシャーピン５７を没入させ型板３２を下動させて、剣ボロ布Ｗを型板３２とワークテーブル６で挟着すると共に、ミシン本体２側の押さえシリンダー８０のロッド８１を伸長させて、型板３２及び剣ボロ布Ｗをワークテーブル６側へ押圧する。
（３）剣ボロ布Ｗの先端部位を折り込む第１、２の折込板３１、３１ａ、両側部位を折り込む第３、４の折込板３１ｂ、３１ｃを順次前進させて剣ボロ布Ｗの外周部分を型板３２上方に折り込んで、剣ボロＰを形成し、押さえシリンダー８０のロッド８１を縮退させて型板３２から離間させる（図１０乃至図１３参照）。
（４）剣ボロＰの上方に袖布Ｂをセットした後、押圧シリンダー６６のロッド６７が伸長し押さえ板３３が下動して、袖布Ｂ及び剣ボロＰを、その間に折込板３１、３１ａ …及び型板３２を介在させたままワークテーブル６に押圧すると共に、折込板３１、３１ａ …及び型板３２を順次後退させて、袖布Ｂ及び剣ボロＰをワークテーブル６に押圧する（図１４参照）。
（５）ワークテーブル６を、ミシン本体２の針Ｓが常に枠板３０の針溝３５内を挿通する様にスライドさせて、図１４（ａ）又は図１４（ｂ）に示す様に、袖布Ｂに剣ボロＰを縫着する。
その際、ワークテーブル６は、針Ｓの連続上下動に対応して間歇的にスライドすることから、袖布Ｂ及び剣ボロ布Ｗを高速縫着しても針先による引掛け傷が生じない。
尚、（５）の縫着作業過程で、押さえ板３３におけるクランク軸７２の屈曲部７３が邪魔になるが、図１４、１６に示す様に、間隔部７４での縫着が終了した時点で、シリンダー７６のロッド７７を伸長させてラック７８及びピニオン７５を介してクランク軸７２を回転させて、屈曲部７３を反対側へ移動させる様にしている。
【００１９】
又、（３）の折込み工程を詳細に説明する。
（３ａ）第１の折込板３１を前進させて、剣ボロ布Ｗの外周部分における第１折込み部位Ｗ１を、型板３２の先端側の一方の斜辺に沿って折る。その際、第１の折込板３１は一方の斜辺の基端側より徐々に型板３２に重なることから、第１折込み部位Ｗ１が確実且つ正確に折り込まれる（図１０参照）。
（３ｂ）第２の折込板３１ａを前進させて、剣ボロ布Ｗの外周部分における第２折込み部位Ｗ２を、型板３２の先端側の他方の斜辺に沿って折る。その際、第２の折込板３１ａにおける一方の突出片４１は他方の斜辺の基端側より徐々に型板３２に重なると共に、第１折込み部位Ｗ１を第１の折込板３１の一側縁部が、型板３２の他方の斜辺部の近傍に位置していることから、第２折込み部位Ｗ２が弛まずに、剣ボロＰにおける一方の斜辺部Ｔ１よりはみ出ずに、確実且つ正確に折り込まれる。又、第２の折込板３１ａは、突出片４１、４１ａの上方に第３、４の折込板３１ｂ、３１ｃの角部が重なる位置まで前進させる（図１１参照）。
（３ｃ）第３、４の折込板３１ｂ、３１ｃを順次又は同時に前進させて、剣ボロ布Ｗの外周部分における第３、４折込み部位Ｗ３、Ｗ４を、型板３２の両側辺に沿って折る。又、第１、２折込み部位Ｗ１、Ｗ２を、第２の折込板３１ａにおける突出片４１、４１ａの側縁部が、型板３２の両側辺部の近傍に平行に位置していることから、第３、４折込み部位Ｗ３、Ｗ４が弛まずに、突出片４１、４１ａで確実に押さえられていることから、剣ボロＰにおける両方の斜辺部Ｔ１、Ｔ２よりはみ出ずに、確実且つ正確に折り込まれる（図１２及び図１３参照）。
【００２０】
又、図面上、左側の袖布Ｂへの剣ボロＰの縫着工程を説明したが、ワークテーブル６のＸ方向のスライド方向を逆にし、必要であれば第３、４の折込板３１ｂ、３１ｃの進退順序を変更し、押さえ板３３におけるクランク軸７２の屈曲部７３の位置を反対側にする様なプログラムも予め組み込んでおけば、スイッチ（図示せず）の切換により１台で左右両方の袖布Ｂに剣ボロＰを折り込んで縫着することが出来る。
又、袖布Ｂに剣ボロＰを縫着する縫い目Ｈにおける間隔部７４内部分にあっては、図１４、１５に示す様なシングルであったり、図１６、１７に示す様なダブルとし、前者の場合、中間部材７０における間隔部７４側の端縁部に沿って、後者の場合、先端部材７１における間隔部７４側の端縁部、間隔部７４側方の針溝３５及び中間部材７０における間隔部７４側の端縁部に沿って縫着形成され、それらも上記と同様にスイッチ（図示せず）により変更可能にしている。
【００２１】
【発明の効果】
要するに本発明は、ミシン本体２のミシンヘッド４下方にＸーＹ方向に移動自在なワークテーブル６を配設したので、かかるワークテーブル６のＸ方向又はＹ方向への移動を単独或いは組み合わせることにより、直線、斜線、及び曲線状に縫うことが出来るため、剣ボロＰがどの様な形状であっても対応して縫着することが出来る。
そして、ワークテーブル上にして、ミシンヘッドの直下部に、外周形状が剣ボロＰと同形で、剣ボロの長手方向先端側に対応する針溝35の一方の斜辺部36の外側、剣ボロの長手方向先端側に対応する針溝の外側及び剣ボロの長手直交方向両側に対応する針溝35の両側辺部37、37a
の外側に折込板31、31a …を進退自在に設けたので、ワークテーブル６上の所定位置に載置された剣ボロ布Ｗ上に、後述する型板32をセットすることで、剣ボロ布Ｗをワークテーブル６上に安定状態でセットすることが出来、そして折込板31、31a
…を前進させれば、該折込板31、31a …の先端に位置した剣ボロ布Ｗの外周部分を、折込板31、31a …と型板32間に挟み込んで、自動的に折り返すことが出来ると共に、その状態を保持することが出来、従来の様にアイロンによるプレス工程を省略することが出来る。
又、剣ボロＰの外周形状と合致する、進退手段47に上下動自在に設けた取付板50の先端に型板32を着脱自在に配設したので、剣ボロ布Ｗをワークテーブル６と型板32間にセットすることが出来ると共に、剣ボロ布Ｗは安定したワークテーブル６側と型板32で強く挟着されるため、折込板31、31a
…と型板32間に挟み込まれる様にして折り返されても、ワークテーブル６及び型板32で挟着された部分から生地が繰り出されて変形せず、よって剣ボロ布Ｗを確実に折り返すことが出来ると共に、剣ボロ布Ｗの袖布Ｂへの縫着作業の邪魔にならない様に型板32を後退させることが出来る。
又、型板32の上方に剣ボロＰ及び袖布Ｂを縫着可能に押さえる押さえ板33を上下動自在に配設したので、折り返された剣ボロ布Ｗをその状態に保持したまま、折り返された外周部分の全体を袖布Ｂに確実に押圧、密着させることが出来るため、そのまま縫着工程へ移行させることが出来、縫いズレ、パッカリング等の不具合を防止することが出来る。
よって、本発明に係る剣ボロＰの自動縫着装置１にあっては、ミシン本体２におけるミシンヘッド４下方で剣ボロ布Ｗ及び袖布Ｂのセットから縫着までの作業全てが行えるため、剣ボロ布Ｗ及び袖布Ｂをワークテーブル６上を移動させずに縫着することが出来、よって剣ボロ布Ｗ及び袖布Ｂの縫いズレ、パッカリング等の不具合を発生させずに、確実且つ正確に縫着することが出来る。
更に、初期設定時においてワークテーブル６の位置決め作業だけで良く、ワークテーブル６のスライド制御だけで確実に縫着出来るため、従来の様に２種類の駆動系の制御が不要で、装置の簡略化を図ることが出来る。
よって、本発明に係る剣ボロの自動縫着装置１にあっては、作業スペースは１箇所で良く、而もワークテーブル６の周囲に剣ボロＰの大きさだけ移動出来るスペースがあればよいため、装置全体を小型化出来、省スペース化を図ることが出来る。
【００２２】
又、押さえ板３３を、直列配置した先端部材７１及び中間部材７０と、該先端部材７１及び中間部材７０を連結するクランク軸７２により構成したので、先端部材７１及び中間部材７０間に形成された間隔部７４に針Ｓにより縫い目Ｈを形成することが出来る。
又、クランク軸７２は、先端部材７１及び中間部材７０の中心上方に配置し、その屈曲部７３を先端部材７１及び中間部材７０間の間隔部７４との対応位置に配置し、且つその先端部及び中間部を先端部材７１及び中間部材７０に回動自在に取着したので、先端部材７１及び中間部材７０は連結状態のまま屈曲部７３の位置だけを適宜往復移動させることで、間隔部７４及び剣ボロＰの外周部分での縫着を滞りなく行うことが出来る。
【００２３】
又、上方待機中の押さえ板３３における先端部材７１は、作業中に触れると揺れてしまって、最悪のケースとして傾斜状態が維持されてしまうことも考えられ、そのまま剣ボロＰ及び袖布Ｂを押圧すると、袖布Ｂが位置ズレする可能性が高いが、ミシンヘッド４に、上方待機状態の押さえ板３３における先端部材７１の上面に当接するストッパー８２を設けたので、例え作業中に先端部材７１に触れたとしても、該先端部材７１はストッパー８２により動かないため、中間部材７０及び先端部材７１の下面で確実に剣ボロＰ及び袖布Ｂを押圧することが出来る等その実用的効果甚だ大なるものである。
【図面の簡単な説明】
【図１】剣ボロの自動縫着装置の概略平面図である。
【図２】カバー板を外した状態の折込み装置の平面図である。
【図３】カバー板及び折込み板を外した状態の剣ボロの自動縫着装置の正面図の要部拡大図である。
【図４】ワークテーブルをＸ方向へスライドさせる駆動部の拡大平面図である。
【図５】枠板の平面図である。
【図６】図５のＺーＺ断面図である。
【図７】型板の平面図である。
【図８】押さえ板の平面図である。
【図９】折込み装置に剣ボロ布をセットした状態を示すワークテーブルの概略平面図である。
【図１０】第１の折込板を前進させた状態を示すワークテーブルの要部拡大平面図である。
【図１１】第２の折込板を前進させた状態を示すワークテーブルの要部拡大平面図である。
【図１２】第３の折込板を前進させた状態を示すワークテーブルの要部拡大平面図である。
【図１３】第４の折込板を前進させた状態を示すワークテーブルの要部拡大平面図である。
【図１４】折込み状態の剣ボロ布の袖布への縫着工程の説明図である。
【図１５】図１４の工程により剣ボロを縫着した袖布の要部拡大平面図である。
【図１６】折込み状態の剣ボロ布の袖布への他の縫着工程の説明図である。
【図１７】図１６の工程により剣ボロを縫着した袖布の要部拡大平面図である。
【図１８】剣ボロ布の平面図である。
【符号の説明】
２ミシン本体
４ミシンヘッド
６ワークテーブル
７折込み装置
３１、３１ａ … 折込板
３２型板
３３押さえ板
３５針溝
３６、３６ａ斜辺部
３７、３７ａ側辺部
４７進退手段
５０取付板
７０中間部材
７１先端部材
７２クランク軸
７３屈曲部
７４間隔部
Ｂ袖布
Ｐ剣ボロ
Ｗ剣ボロ布[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an automatic sword rag sewing apparatus in which a ragged sword cloth is folded and the sword rag is sewn to a sleeve cloth.
[0002]
[Prior art]
Conventionally, as a work before sewing a sword rag to the cuff opening of a sleeve cloth, one side portion of the sword rag cloth is folded upward and pressed, and a template is placed at a predetermined position on the sword rag cloth near the other side. Is placed, and the outer peripheral portion of the ragged sword cloth is sequentially folded along one oblique side, the other oblique side, one side, and the other side on the tip side of the template, and each folding operation is performed. Later, it was pressed by an iron or the like to form a sword rag.
Then, the sleeve cloth on which the sword rag is set is placed on the auxiliary table of the sewing machine main body, and after the sewing start portion is positioned below the needle in the sewing machine main body, the holding plate is lowered to operate the sewing machine main body. While the sleeve cloth is being fed by the feeding device on the auxiliary table side, a seam is formed at a portion to be sewn, and after sewing each part, the sewing machine body is temporarily stopped and the sleeve cloth is rotated to form the next seam. The sewing direction was adjusted to the feed direction, and the sewing was repeatedly performed by operating the sewing machine body, thereby sewing the sword rag on the sleeve cloth.
[0003]
[Problems to be solved by the invention]
However, in the above-described sewing method, the step of folding the ragged sword cloth and the step of sewing the ragged sword to the sleeve cloth must be performed in different places, and two work spaces are required. However, if one worker performs both tasks, labor costs are reduced, but the number of sheets processed per unit time is also reduced. Conversely, if two workers share both tasks, processing per unit time There are problems that must be solved, such as being uneconomical in any case because the number of sheets increases but labor costs also increase.
Also, the gap between the outer side of the rag and the seam must be about 0.8 to 1 mm, and both ends of the seam on each side must be aligned with the corners of the sword rag. It was possible.
[0004]
[Means for Solving the Problems]
The present invention has been made in consideration of the problem that various problems occur due to the separate operation of folding the sword rag cloth and the operation of sewing the sword rag to the sleeve cloth based on the above-described conventional technology. A work table is provided below the sewing head, the work table being movable in the X-Y directions, and a folding device for folding a sword rag cloth into a desired sword rag shape is provided immediately below the sewing head on the work table. In the automatic sewing device, the folding device is provided on the work table, at least a frame plate having a needle groove whose outer peripheral shape matches the sword rag shape, and a shape matching the sword rag, and is provided to be vertically movable. A template provided at the tip of the mounting plate, which presses the ragged cloth toward the work table, and the outside of the needle groove corresponding to one oblique side of the sword rag on the one side in the longitudinal direction, the longitudinal end of the sword rag. Needle groove corresponding to Each corresponding edge of the ragged sword cloth provided on the outer side and the outer side of the needle groove corresponding to both sides in the direction perpendicular to the longitudinal direction of the sword rag is pressed to the work table side by the template to the upper surface of the template. A folding plate to be folded and a vertically movable cloth provided above the template, and press the folded sword cloth and the sleeve cloth set on the sword cloth to be sewn along the needle groove. It is characterized by comprising a holding plate.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, in an automatic sword rag sewing apparatus 1 for sewing a sword rag P on a sleeve cloth B, a sword rag P is placed on a setting table 3 of a sewing machine main body 2 and a sewing head 4 and an auxiliary table 5 are provided. In addition, a work table 6 movable in the X and Y directions is provided, and a folding device 7 for the ragged cloth W is provided on the work table 6.
[0006]
The worktable 6 is long in the Y direction, and is provided with a notch 8 for installing the folding device 7 from the rear end to the front end.
As shown in FIGS. 2 and 3, the work table 6 has an upper rail 9 disposed below the work table 6 in the X direction and a right angle to the upper rail 9 disposed below the upper rail 9. The lower rail 10 provided is movable in the Y direction, and can be slid independently in the X direction and the Y direction, or can be combined slide to form a straight, diagonal or curved seam H.
More specifically, an upper rail 9 is fixedly provided on the lower surface of the work table 6, a lower rail 10 is fixedly mounted on the upper surface of the mounting table 3, and a pair of upper sliders 12 and 12 a fixed on the upper surface of the connecting plate 11 are connected to the upper rail 9. And a pair of lower sliders 13 and 13a fixed to the lower surface of the connecting plate 11 are slidably fitted to the lower rail 10 from above.
[0007]
The drive unit 14 for sliding the work table 6 in the X direction is provided on the rear side of the sewing machine main body 2 as shown in FIG. 4, and the drive unit 14 is connected to a pair of pulleys 15 and 15a. The belt 16 is wound, one end of the connecting rod 17 is slidably mounted in the Y direction on the work table 6 side, and the other end of the connecting rod 17 is fixed to an intermediate portion of the belt 16.
Further, one end of the connecting rod 17 is connected to a slider 17b slidable with respect to a linear way 17a provided in the upper surface of the work table 6 and extending in the Y direction.
In the drive unit 20 that slides the work table 6 in the Y direction, a belt 22 is wound around a pair of pulleys 21 and 21a disposed at both ends of the lower rail 10, and the belt 22 and the lower slider 13 are wound. , 13a are connected by a connecting plate 23.
Also, large pulleys 25, 25a attached to the lower ends of shafts 24, 24a on which one pulleys 15, 21 of the drive units 14, 20 are attached, and drive shafts of motors 26, 26a fixed to the mounting base 3. A belt 29, 29a is wound between small pulleys 28, 28a mounted on 27, 27a, and the work table 6 is slid in the XY direction by forward and reverse driving of motors 26, 26a.
The motors 26 and 26a are in a state where the work table 6 is stopped with the needle S of the sewing machine main body 2 stuck into the sleeve cloth B and the ragged sword cloth W, and the motors 26 and 26a are pulled out of the sleeve cloth B and the ragged sword cloth W. Thus, the work table 6 is controlled to slide by one stitch, and the sewing length of each side is initially input, so that the end of the seam H on each side is securely stopped at each corner.
[0008]
Also, in the folding device 7, as shown in FIGS. 2 and 3, a frame plate 30 which is detachably disposed directly below the sewing machine head 4 at the tip side of the cut 8 in the work table 6, A plurality of folding plates 31, 31a... Arranged on the outer peripheral side of the frame plate 30 so as to be able to advance and retreat, a template 32 for folding the outer peripheral portion of the sword rag cloth W into a predetermined shape, and the set sword rag cloth W And a pressing plate 33 for pressing the sleeve cloth B to the work table 6 side.
[0009]
As shown in FIGS. 5 and 6, the frame plate 30 is formed by laminating two plate members, and has an upper plate formed with a notch 34 into which the tip of the template 32 fits. 30a and the lower plate 30b having the needle groove 35 formed therein, and the cut 34 in the upper plate 30a and the outer peripheral edge of the needle groove 35 in the lower plate 30b are aligned.
Further, the needle groove 35 substantially matches the distal end portion of the template 32, and is located rearward from both side portions of an opening 35a formed in a vertically long home base shape from a distal end member 71 of the pressing plate 33 described later. Notches 35b and 35c are formed along the both sides of the template 32.
Further, mounting pieces 38, 38a are provided on both sides of the upper surface on the rear side of the upper layer plate 30a so as to protrude outward, and cuts 39, 39a are formed at the front edges of the mounting pieces 38, 38a. The frame plate 30 is fixed to the work table 6 by screwing screws, bolts, and the like that have been inserted from above into the work table 39a.
[0010]
The folding plates 31, 31a... Are arranged so that the leading end portion and both side portions of the ragged sword cloth W are folded.
[0011]
In the first folding plate 31, one oblique side T1 of the tip of the sword rag P is formed by folding, and one of the outer peripheral edges of the needle groove 35 corresponding to the longitudinal tip of the sword rag. It is configured to be able to advance and retreat with respect to the hypotenuse portion 36 of
The direction of advance and retreat of the first folding plate 31 is inclined at a predetermined angle with respect to the longitudinal direction of the needle groove 35, and both sides of the first folding plate 31 have one oblique side 36 at the outer peripheral edge of the needle groove 35. Pass slightly inside from both ends.
Further, it is desirable that the first folding plate 31 is formed so that the interval between the first folding plate 31 and the one oblique side 36 of the needle groove 35 gradually widens toward the tip.
[0012]
In the second folding plate 31a, the other oblique side portion T2 of the tip of the sword rag P is formed by folding, and is disposed outside the needle groove 35 corresponding to the longitudinal tip of the sword rag. The reciprocating direction is parallel to the longitudinal direction of the needle groove 35.
The second folding plate 31a has the same width as the template 32 or is slightly narrower.
Further, a notch 40 expanding forward is provided at the front end of the second folding plate 31a, and the innermost portion of the notch 40 is connected to the second folding plate 31a.
Are formed so as to be closer to the first folding plate 31 side from the center of the notch 40, and projecting pieces 41, 41a are formed on both sides of the notch 40.
Specifically, as shown in FIG. 2, a notch 40b is formed by forming a relief notch 40b on the inner end of the oblique side of the V-shaped notch 40a on the side of the second folding plate 31a.
Further, the one protruding piece 41 has a pointed shape, and a folding side 42a extending from the tip to the deepest part of the notch 40.
have.
Further, it is desirable that the folded side 42a is formed so that the interval between the needle groove 35 and the other oblique side 36a gradually increases toward the tip end.
Further, the other protruding piece 41a overlaps above the first folding plate 31.
[0013]
In the third and fourth folding plates 31b and 31c, both side portions T3 and T4 of the sword rag P are formed by folding, and the both sides of the needle groove 35 corresponding to the longitudinal end of the sword rag. And the reciprocating direction is perpendicular to the longitudinal direction of the needle groove 35, and the leading edge 42b
, 42c are parallel to the side portions 37, 37a of the needle groove 35.
Also, ruler plates 90, 90a for aligning one side edge of the ragged sword cloth W above the third and fourth folding plates 31b, 31c.
Are provided so as to be slidably fixed in the forward and backward directions of the third and fourth folding plates 31b and 31c.
In addition, the overlapping portion of the first folding plate 31 and the second folding plate 31a, and the second folding plate 31a and the third and fourth folding plates 31b.
The overlapped portion of the first and second folding plates 31b and 31c is provided at the middle portion of the first folding plate 31 at the corner of the third and fourth folding plates 31b and 31c so that the latter is on the top. Step part 44, 44a where the part becomes high
Are formed respectively.
The cylinders 45, 45a... Are placed on the work table 6 below the first and second folding plates 31, 31a.
Are arranged in such a manner as to extend and retract in the forward and backward directions, and the rods 46, 46a of the cylinders 45, 45a are fixed to the first and second folding plates 31, 31a.
The cylinders 45, 45a,... Are installed below a cover plate 6a provided above the work table 6.
.. Are arranged outside the outer edge of the needle groove 35 in the initial state, and are controlled so as to advance forward from the inner edge of the needle groove 35 to the inside.
[0014]
Next, as shown in FIGS. 2 and 3, the template 32 is detachably attached to the tip of the advance / retreat means 47 of the template 32, and the advance / retreat means 47 has a pull-out slidable reciprocally in the Y direction. A mounting plate 50 is provided at a front portion of the plate 48 via a pair of spring plates 49 and 49a so as to be vertically movable, and a template 32 is mounted on the mounting plate 50.
A cylinder 51 is provided on the lower surface side of the work table 6, and the rod 52 of the cylinder 51 is fixedly mounted on the rear end of the drawing plate 48. Let me.
A rail 53 arranged side by side on the cylinder 51 is fixed to the lower surface of the pull-out plate 48, and a rail guide 54 slidably fitted to the rail 53 from below is fixed to the work table 6 side. .
Further, an attachment frame 55 is provided so as to straddle the cut 8 in the middle of the work table 6 and behind the frame plate 30, and a pusher 56 is provided at the center of the attachment frame 55. The pin 57 is configured to be able to protrude and retract from the upper surface of the mounting frame 55.
Then, the template 32 is moved up and down by the push-out pin 57. Specifically, when the pusher pin 57 is projected, the spring plates 49 and 49a are elastically deformed, and the template 32 is lifted up. When the pusher pin 57 is retracted, the template 32 is pressed toward the work table 6 by the elastic restoring force of the spring plates 49 and 49a.
As shown in FIG. 7, cuts 58, 58a are provided on the rear end side of the template 32, and screws, bolts, etc., which are inserted through the cuts 58, 58a from above, are screwed into the mounting plate 50. Then, the template 32 is fixed to the mounting plate 50.
[0015]
Next, as shown in FIGS. 2 and 3, the holding plate 33 is detachably attached to the tip of the up / down moving means 59 of the holding plate 33, and the up / down moving means 59 has a pair on the work table 6 side. Spring plate 60, 60a
A mounting plate 62 for the holding plate 33 is provided on the distal end side of the connecting plates 61 and 61a connected via the other end, while the rear side of a pair of side plates 63 and 63a opposed to the rear end side of the cut 8 in the work table 6. A mounting frame 65 is horizontally installed between the mounting frames 65, and the spring plates 60 and 60a are mounted on the mounting frame 65.
Has been fixed.
A mounting frame 64 is horizontally laid between the front sides of the side plates 63 and 63a, and a pressing cylinder 66 is provided on the front surface of the mounting frame 64. The tip of the rod 67 of the pressing cylinder 66 is held by the pressing plate 33. The pressing plate 33 is moved up and down by the expansion and contraction of the rod 67 and pressed against the work table 6 side.
In the holding plate 33, as shown in FIG. 8, a pressing portion 68 that fits into the cutout 34 of the frame plate 30 is provided so as to protrude from the center of the tip of a mounting portion 69 to the vertical movement means 59. The outer periphery of the pressing portion 68 is aligned with the inner edge of the needle groove 35 in the frame plate 30 to securely press the folded portion of the ragged sword cloth W, and the pressing plate 33 sew the sword ragged cloth W. I try not to get in the way.
Further, in the pressing portion 68, an elongated plate-shaped intermediate member 70 integrated with the mounting portion 69, and a home base-shaped distal member 71 arranged at a distal end side of the intermediate member 70 at a predetermined interval. And a crankshaft 72 connecting the intermediate member 70 and the tip member 71.
Specifically, the crankshaft 72 is disposed above the intermediate member 70 and the tip member 71, and the bent portion 73 is arranged at the interval 74 between the intermediate member 70 and the tip member 71, and the tip portion is attached to the tip member. The intermediate portion is rotatably attached to the intermediate member 70 at 71.
In addition, the bent portion 73 is configured not to cover the interval portion 74.
In addition, a pinion 75 is mounted on the base end of the crankshaft 72, and a rack 78 mounted on a rod 77 of a cylinder 76 installed on the upper surface of the mounting portion 69 of the holding plate 33 is arranged above the pinion 75 so as to mesh. The crank shaft 72 is rotated by the reciprocation of the rack 78.
Then, cuts 79, 79a are formed at the rear end side of the mounting portion 69 in the holding plate 33.
In addition, screws, bolts, and the like, which are inserted through the cuts 79 and 79a from above, are screwed into the mounting plate 62, and the holding plate 33 is fixed to the mounting plate 62.
In the holding plate 33, a holding cylinder 80 of the template 32 is provided on the sewing machine main body 2 side. The holding cylinder 80 penetrates the gap 74 of the holding plate 33 and extends the rod 81 thereof. The template 32 is pressed down.
In addition, a stopper 82 that contacts the upper surface of the tip member 71 of the holding plate 33 in the upper standby state is installed on the sewing machine main body 2.
[0016]
Further, the lower ends of the side plates 63, 63a are projected downward from the lower surface of the work table 6, and a mounting frame 83 is horizontally provided between the lower ends of the side plates 63, 63a. The guide 54 is fixed.
At the both ends of the mounting frame 55 provided with the pusher 56, hanging frames 84, 84a are provided vertically, and a horizontal frame 85 is provided between the lower ends of the hanging frames 84, 84a. The upper rail 9 in the direction is fixed.
[0017]
Also, as shown in FIG. 18, the sword rag cloth W is composed of a front side portion Wa and a back side portion Wb, the width of the front side portion Wa is made wider than the template 32, and the front side portion Wa is folded back to the outside of the back side portion Wb. A portion Wb1 is formed, and the dimensions are set so that the outer edge of the back side portion Wb is finally aligned with the side portion T3 of the sword rag P.
[0018]
Next, the operation of the sword rag automatic sewing apparatus according to the present invention will be described.
(1) Depressing a pedal (not shown), projecting the pusher pin 57 of the pusher 56 to move the template 32 upward, and placing the sword cloth W above the frame plate 30 under the template 32. The outer peripheral portion is placed on the tip of the folding plate 31, 31a, and one side edge of the ragged sword cloth W is aligned with the corresponding ruler plate 90, 90a and set (see FIG. 9).
(2) The pedal (not shown) is released, the pusher pin 57 of the pusher 56 is immersed, the template 32 is moved downward, and the ragged cloth W is clamped between the template 32 and the work table 6 and the sewing machine The rod 81 of the holding cylinder 80 on the main body 2 side is extended, and the template 32 and the ragged cloth W are pressed toward the work table 6.
(3) The outer peripheral portion of the sword rag cloth W is advanced by sequentially moving the first and second fold plates 31, 31a for folding the tip portion of the sword rag cloth W, and the third and fourth fold plates 31b, 31c for folding the both side portions. It is folded over the template 32 to form a sword rag P, and the rod 81 of the holding cylinder 80 is retracted and separated from the template 32 (see FIGS. 10 to 13).
(4) After the sleeve cloth B is set above the sword rag P, the rod 67 of the pressing cylinder 66 is extended and the holding plate 33 is moved downward, so that the sleeve cloth B and the sword rag P are interposed therebetween, and the folding plate 31, , And the template 32 are pressed against the work table 6 while the folding plates 31, 31a,... And the template 32 are sequentially retracted, and the sleeve cloth B and the ragged sword P are pressed against the work table 6 ( See FIG. 14).
(5) The work table 6 is slid so that the needle S of the sewing machine main body 2 always passes through the needle groove 35 of the frame plate 30, and the sleeve is moved as shown in FIG. 14A or FIG. The sword rag P is sewn on the cloth B.
At this time, the work table 6 intermittently slides in response to the continuous vertical movement of the needle S, so that even when the sleeve cloth B and the ragged sword cloth W are sewn at a high speed, the needle tip does not cause a scratch due to the needle tip. .
In the course of the sewing operation (5), the bent portion 73 of the crankshaft 72 in the holding plate 33 is in the way, but as shown in FIGS. By extending the rod 77 of the cylinder 76 and rotating the crankshaft 72 via the rack 78 and the pinion 75, the bent portion 73 is moved to the opposite side.
[0019]
The folding step (3) will be described in detail.
(3a) The first folding plate 31 is advanced, and the first folding portion W1 in the outer peripheral portion of the ragged sword cloth W is folded along one oblique side on the tip side of the template 32. At this time, since the first folding plate 31 gradually overlaps the template 32 from the base end side of one oblique side, the first folding portion W1 is reliably and accurately folded (see FIG. 10).
(3b) The second folding plate 31a is advanced, and the second folding portion W2 on the outer peripheral portion of the ragged cloth W is folded along the other oblique side on the tip side of the template 32. At this time, the one protruding piece 41 of the second folding plate 31a gradually overlaps with the template 32 from the base end side of the other oblique side, and the first folding portion W1 is connected to one side edge of the first folding plate 31. Is located near the other oblique side of the template 32, so that the second folded portion W2 does not protrude from the one oblique side T1 of the sword rag P and is reliably and accurately folded. . Further, the second folding plate 31a is advanced to a position where the corners of the third and fourth folding plates 31b, 31c overlap the protruding pieces 41, 41a (see FIG. 11).
(3c) The third and fourth folded plates 31b and 31c are sequentially or simultaneously advanced, and the third and fourth folded portions W3 and W4 in the outer peripheral portion of the ragged sword cloth W are folded along both sides of the template 32. . In addition, the first and second fold portions W1 and W2 are positioned in such a manner that the side edges of the protruding pieces 41 and 41a in the second fold plate 31a are positioned parallel to the vicinity of both side portions of the template 32, Since the third and fourth folded portions W3, W4 are securely pressed by the protruding pieces 41, 41a without loosening, they are securely and accurately folded without protruding from both oblique sides T1, T2 of the sword rag P. (See FIGS. 12 and 13).
[0020]
In the drawing, the sewing process of the sword rag P to the left sleeve cloth B has been described. However, the slide direction of the work table 6 in the X direction is reversed, and if necessary, the third and fourth folding plates 31b, If a program for changing the order of the forward and backward movements of 31c and setting the position of the bent portion 73 of the crankshaft 72 on the holding plate 33 on the opposite side is incorporated in advance, one switch can be used to switch both the left and right sides by switching a switch (not shown). The sword rag P can be folded and sewn on the sleeve cloth B of the sword.
Further, the portion inside the interval portion 74 in the seam H for sewing the sword rag P to the sleeve cloth B may be a single as shown in FIGS. 14 and 15 or a double as shown in FIGS. In the former case, along the edge of the intermediate member 70 on the space 74 side, in the latter case, the edge of the tip member 71 on the space 74 side, the needle groove 35 on the side of the space 74 and the intermediate member 70 Are sewn along the edge on the side of the gap 74, and can be changed by a switch (not shown) in the same manner as described above.
[0021]
【The invention's effect】
In short, according to the present invention, since the work table 6 movable in the XY directions is provided below the sewing head 4 of the sewing machine main body 2, the movement of the work table 6 in the X direction or the Y direction can be performed alone or in combination. , The sword rag P can be sewn in any shape.
Then, on the work table, immediately below the sewing head, the outer peripheral shape is the same as the sword rag P, and the outer side of one oblique side 36 of the needle groove 35 corresponding to the longitudinal end of the sword rag, the sword rag. Both sides 37, 37a of the needle groove 35 corresponding to the outside of the needle groove corresponding to the longitudinal end side and to both sides in the longitudinal direction of the sword rag.
Are provided on the outside of the work table 6 so as to be able to advance and retreat, so that a later-described template 32 is set on the ragged cloth W placed at a predetermined position on the work table 6 so that the ragged cloth can be formed. W can be set in a stable state on the work table 6, and the folding plates 31, 31a
Is advanced, the outer peripheral portion of the ragged sword cloth W positioned at the end of the folding plates 31, 31a is sandwiched between the folding plates 31, 31a and the template 32, and can be automatically folded. At the same time, the state can be maintained, and a pressing step using an iron can be omitted as in the related art.
Also, since the template 32 is removably disposed at the tip of the mounting plate 50 provided on the advance / retreat means 47 so as to be vertically movable, which matches the outer peripheral shape of the sword rag P, the sword rag cloth W is formed with the work table 6 and the mold. Since the sword rag cloth W can be set between the plate 32 and the stable work table 6 side and the template 32, the folding plates 31, 31a can be set.
Even when folded back so as to be sandwiched between the template 32, the fabric is fed out from the portion sandwiched between the work table 6 and the template 32 and is not deformed, so that the sword cloth W is securely folded back. And the template 32 can be retracted so as not to hinder the sewing operation of the ragged sword cloth W to the sleeve cloth B.
Also, since the pressing plate 33 for sewn the sword rag P and the sleeve cloth B so that the sword rag P and the sleeve cloth B can be sewn is disposed above the template 32, the folded sword rag cloth W is folded while holding the folded sword rag cloth W in that state. Since the entire outer peripheral portion can be reliably pressed and brought into close contact with the sleeve cloth B, it is possible to shift to the sewing process as it is, and it is possible to prevent problems such as sewing deviation and puckering.
Therefore, in the automatic sewing apparatus 1 for the sword rag P according to the present invention, all the operations from setting the sword rag cloth W and the sleeve cloth B to sewing can be performed below the sewing head 4 in the sewing machine main body 2. The ragged sword cloth W and the sleeve cloth B can be sewn without moving on the work table 6, so that the sword ragged cloth W and the sleeve cloth B can be securely stitched without causing a defect such as stitching or puckering. In addition, sewing can be performed accurately.
Further, at the time of the initial setting, only the work of positioning the work table 6 is sufficient, and the sewing can be reliably performed only by the slide control of the work table 6, so that control of two types of driving systems is unnecessary as in the related art, and the apparatus is simplified. Can be achieved.
Therefore, in the automatic sword rag sewing apparatus 1 according to the present invention, only one working space is required, and there is only a space around the work table 6 that can move by the size of the sword rag P. In addition, the entire apparatus can be reduced in size and space can be saved.
[0022]
Further, since the holding plate 33 is constituted by the tip member 71 and the intermediate member 70 arranged in series and the crankshaft 72 connecting the tip member 71 and the intermediate member 70, the holding plate 33 is formed between the tip member 71 and the intermediate member 70. A seam H can be formed in the space 74 with the needle S.
The crankshaft 72 is disposed above the center of the tip member 71 and the intermediate member 70, and the bent portion 73 is disposed at a position corresponding to the gap 74 between the tip member 71 and the intermediate member 70, and And the intermediate portion is rotatably attached to the distal end member 71 and the intermediate member 70. Therefore, the distal end member 71 and the intermediate member 70 are reciprocated only at the position of the bent portion 73 in the connected state as appropriate, so that the spacing portion 74 Further, the sewing at the outer peripheral portion of the sword rag P can be performed without delay.
[0023]
Further, it is considered that the tip member 71 of the holding plate 33 in the upper standby state is shaken when touched during the work, and the inclined state is maintained as a worst case. When pressed, the sleeve cloth B is likely to be displaced. However, since the sewing machine head 4 is provided with the stopper 82 that comes into contact with the upper surface of the tip member 71 of the holding plate 33 in the upper standby state, even if the tip member Even if it touches 71, since the tip member 71 does not move by the stopper 82, the sword rag P and the sleeve cloth B can be surely pressed on the lower surfaces of the intermediate member 70 and the tip member 71, and the practical effect is great. It is a great thing.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of an automatic sewing device for sword rags.
FIG. 2 is a plan view of the folding device with a cover plate removed.
FIG. 3 is an enlarged view of a main part of a front view of the automatic sewing device for a sword rag with a cover plate and a folding plate removed.
FIG. 4 is an enlarged plan view of a driving unit that slides a work table in an X direction.
FIG. 5 is a plan view of a frame plate.
FIG. 6 is a sectional view taken along the line ZZ of FIG. 5;
FIG. 7 is a plan view of a template.
FIG. 8 is a plan view of a holding plate.
FIG. 9 is a schematic plan view of a work table showing a state in which a ragged sword cloth is set in the folding device.
FIG. 10 is an enlarged plan view of a main part of the work table showing a state where the first folding plate is advanced.
FIG. 11 is an enlarged plan view of a main part of a work table showing a state where a second folding plate is advanced.
FIG. 12 is an enlarged plan view of a main part of a work table showing a state where a third folding plate is advanced.
FIG. 13 is an enlarged plan view of a main part of a work table showing a state where a fourth folding plate is advanced.
FIG. 14 is an explanatory view of a sewing process of the folded sword cloth to the sleeve cloth.
FIG. 15 is an enlarged plan view of a main part of a sleeve cloth on which a sword rag is sewn by the process of FIG. 14;
FIG. 16 is an explanatory diagram of another sewing process of the folded sword cloth to the sleeve cloth.
17 is an enlarged plan view of a main part of a sleeve cloth on which a sword rag has been sewn in the step of FIG. 16;
FIG. 18 is a plan view of a ragged sword cloth.
[Explanation of symbols]
2 Sewing machine body
4 Sewing head
6 Work table
7 Folding device
31, 31a ... folding plate
32 template
33 Holding plate
35 Needle groove
36, 36a hypotenuse
37, 37a side part
47 means of retreat
50 Mounting plate
70 Intermediate member
71 Tip member
72 crankshaft
73 Bend
74 interval
B sleeve cloth
P Sword rag
W ragged cloth

Claims

A work table movable in the X and Y directions is provided below the sewing head on the installation table of the sewing machine main body, and a sword rag cloth is folded just below the sewing head on the work table into a desired sword rag shape. In the automatic sword rag sewing apparatus provided with the sword rag, the folding device is provided on a work table, and at least the outer peripheral shape is formed with a needle groove that matches the sword rag shape, and a shape matching the sword rag. A template provided at the end of the mounting plate provided to be movable up and down and pressing the sword rag to the work table side, and the outside of the needle groove corresponding to one oblique side of the longitudinal end of the sword rag. The sword rags are provided movably on the outer side of the needle groove corresponding to the longitudinal end side of the sword rag and the outer sides of the needle grooves corresponding to both sides in the direction orthogonal to the longitudinal direction of the sword rag, and pressed toward the work table by the template. Cloth A folding plate for folding corresponding edges to the upper surface of the template, and a folded sword cloth and a sleeve cloth set on the sword rag cloth, which are provided to be movable up and down above the template. An automatic sewing device for a sword rag, which comprises a holding plate that presses along a needle groove so that sewing is possible.

The holding plate of the folding device according to claim 1 comprises a tip member and an intermediate member arranged in series, and a crankshaft connecting the tip member and the intermediate member, and the crankshaft is located above the center of the tip member and the intermediate member. An automatic sewing device for a sword rag, wherein the bent portion is disposed at a position corresponding to the space between the tip member and the intermediate member, and the tip portion and the intermediate portion are rotatably provided on the tip member and the intermediate member. .

3. The sword rag automatic sewing apparatus according to claim 2, wherein the sewing machine head is provided with a stopper that comes into contact with the upper surface of the tip member of the holding plate in the upper standby state.