200536979 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種圓頭鈕孔縫紉機，以用於製作一具有 -圈結線的-自由起始端和—自由尾段的圓如孔線縫，200536979 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a round-head buttonhole sewing machine for making a circular hole-like seam with a -free end and a free tail.
5該縫紉機包括一臂；一用於引導一針線的針，該針可通過 一支承在該臂内的臂軸沿一z方向被驅動；_基板一可在 戎基板上沿一 X方向和一 y方向移動的X-y工作臺丨一設置在 該χ-y工作臺上的縫料夾；一設置在該基板内的可駆動旋轉 的線鈎支座，該線鈎支座具有一設置在所述針下方用於供 10應圈結線的針孔附件；一線切斷裝置的設置在工作A上的 對應刀具；一用於圈結線起始端的線夾，該線夾與所述對 應刀具相鄰；一可移動經過該線夾的抽線裝置，以抓取圈 結線的尾段以將其供應給對應刀具；以及一用於所述抽線 裝置的驅動器。 15 【lltr 】5 The sewing machine includes an arm; a needle for guiding a needle thread, the needle can be driven in a z direction by an arm shaft supported in the arm; a substrate can be driven in an X direction and a An Xy table moving in the y direction 丨 a sewing clamp provided on the χ-y table; a thread hook support which can be rotated in the base plate, and the thread hook support has a A pinhole accessory for the 10-knot wire under the needle; a corresponding tool of the first-line cutting device provided on work A; a wire clamp for the starting end of the wire, which is adjacent to the corresponding tool; A wire drawing device movable through the wire clamp to grasp the tail section of the loop wire to supply it to the corresponding cutter; and a driver for the wire drawing device. 15 [lltr]
Dlirkopp Adler 公司的標題爲 “D〇ppelkeUenstich_Dlirkopp Adler is titled "D〇ppelkeUenstich_
Augenknopfloch-automat mit CNC-Schrittmotortechnik 579/589”的手冊中說明了這種類型的圓頭鈕孔縫紉機，在該 縫紉機中將圈結線和一 一本例中可能有的一與圈結線一起 20供應並與其縫合在一起的嵌芯包纏花式線(gimp thread)切 斷，並且留下一長的尾段。在一後續操作中，將該圈結線 尾段和該可能有的嵌芯包纏花式線尾段可靠地交叉粗縫 (tack)，然後進行縫製。在切斷該尾段時，保持在線夾中的 圈結線起始端被同時切斷。這樣就切下一落入一收集盒並 200536979 會弄髒縫紉機的線段。每個切割工作中都對兩條線即圈結 線的起始端和尾段進行切割的事實，會導致切割裝置的高 磨損。 【發明内容】 5 本發明的一個目的就是，這樣改進所述類型的鈕孔縫 紉機，以避免麻煩的去除殘留線段的工作並減少對切割裝 置的磨損。 根據本發明，通過以下特徵來實現該目的，根據所述 特徵，設置一可從一構成停止位置的停頓位置樞轉到一構 10 成工作位置的停頓位置的線偏轉裝置，在所述工作位置該 線偏轉裝置使夾持在線夾中的圈結線起始端偏轉出對應刀 具的範圍。由於沒有切斷圈結線的起始端，所以不存在需 要除去的切斷部分。這可同樣適用於嵌芯包纏花式線。降 低了對切割刀具的磨損。根據本發明的圓頭鈕孔縫紉機用 15 於縫製圓頭鈕孔線縫，但它也可用於縫製其他類型的鈕孔 甚至是鞋帶孔。 圖式簡單說明 從下面結合附圖對一示例性實施例的說明中，本發明 的其他特徵、細節和優點將顯而易見，其中： 20 第1圖是一圓頭鈕孔縫紉機的縱向側視圖，其示出一相 對於針的處於一將放置待縫製的縫料的位置的x-y工作臺； 第2圖爲根據第1圖中箭頭II的X-y工作臺打開部分的放 大的視圖，該視圖逆時針旋轉了 90° ; 第3圖是第2圖的細部放大視圖； 6 200536979 第4圖是一線偏轉裝置的透視圖； 第5圖是第3圖的線V-V上的與第3圖相比比例放大的剖 視圖，該圖轉動了 180°並且線偏轉裝置處在一停止位置； 第6圖是對應於圖5的視圖，其中線偏轉裝置處在一工 5 作位置； 第7圖是第3圖中VII-VII線上的線夾的細部視圖； 第8圖是根據第11圖中箭頭VII的抽線裝置和對應刀具 細部放大俯視圖； 第9圖是第3圖的一細部視圖，其中抽線裝置處在停止 10 位置並且圈結線的起始端在放置縫料夾並縫製圓頭鈕孔線 縫之前保持在線夾中； 第10圖爲已經在縫料夾上設置圓頭鈕孔線縫之後的第 9圖的視圖， 第11圖是第9和10圖的視圖，其中抽線裝置朝向對應刀 15 具極轉，和 第12圖是設有圓頭鈕孔的縫料的視圖，其圈結線起始 端和尾段懸掛在圓頭鈕孔線縫上。 【實施方式3 較佳實施例之詳細說明 20 如第1圖所示，一圓頭鈕孔縫幼機爲C形，它具有一頂 臂1、一殼體形式的下部基板2以及一連接這兩部分的近似 垂直的立柱3。在臂1内以常見的方式支承有一臂轴4 ;該臂 軸4可由一驅動馬達（未示出）驅動。對可在z方向移動的具有 一針5的垂直針桿的驅動以常見的方式由該臂軸4導出。借 200536979 助針5從一針線供應源(未示出）供應針線6。在帶有針5的針 桿下方，一鈎針支座7設置在基板2内，該鈎針支座7具有可 被驅動而圍繞一垂直軸線8轉動的鈎針（未示出）。對鈎針支 座7的致動按常見的方式進行，如例如從DE ΐ98〇777ι 5 AK對應於US專利6095066)中已知的那樣。在基板2内鈎針 支座7上方設有-針穿過縫人的針孔附件(thmat廳如如) 9 〇 基板2上設有-χ·γ玉作臺1G ;該玉作臺是—可在兩個 水平座標方向即X方向和y方向上移動的十字滑動件。該十 10字工作臺10具有例如從DE 19807771 Al(對應於US專利 6095066)中已知的常規設計。對工作臺1〇的致動通過一X驅 動器和-y驅動器進行，所述驅動器爲定位電動機，通常優 選步進電機，但也可爲可調DC電機。這些驅動器未示出。 x-y工作臺10上設置有一兩件式支承板，該支承板由兩 I5個部分支承板11和11，組成。這些部分支承板叫⑴，易於取 下地保持在x-y工作臺上。部分支承板u、u，覆蓋鈎針支座 7，s牙入一由一圈結線供應源（未示出）供應的圈結線丨二時 必須將所述部分支承仙、u’取下。也可供應一嵌芯包纏 花式線，這通常是已知的，因此未特別示出。 20 設有一具有一樞轉的雙臂支桿14的縫料夾13。支桿14 的自由端設有一上部夾緊板15。對支桿14的樞轉致動和從 而對上部夾緊板15的樞轉致動通過一位於基板2内的驅動 态（未不出）進行，所述驅動器在Ep 1354993 對應於us 6647905 B2)詳細說明。一下部失緊板16配設給所述上部夾 200536979 緊板15 ;該下部夾緊板固定在部分支承板丨丨上。部分支承 板11、11’上方的空間由一蓋17覆蓋，該蓋17可使下部夾緊 板16保持自由移動並與下部夾緊板相鄰接。 在y方向上在上部夾緊板15的下游一即該上部夾緊板 5 15與立柱3之間設有一鈕孔切割裝置18。該切割裝置18包 括：一設置在基板2内並且在z方向上不可移動的刀具19 ; 以及一砧座20,該砧座設置在臂2内刀具19的垂直上方，而 且可驅動該砧座沿z方向朝向刀具向下以及向上返回移 動。這種類型的設計例如可從可參考的DE 1991666〇 C1 (對 10 應於US 6220192 A)中獲知。 在x-y工作臺1〇中設有一線切斷裝置21，該線切斷裝置 21具有一可更換地固定在一刀具支承件23上的靜止的對應 刀具22,該刀具支承件23固定於部分支承板n，其自身相 對於x-y工作臺1〇靜止。一抽線裝置24與對應刀具22相對設 15置，該抽線裝置是鈎形的雙臂桿式的。抽線裝置24在一端 通過一樞轉支承件25可樞轉地安裝在部分支承板丨丨上。抽 線裝置24的另一自由端包括一抽線和切斷區域26，該區域 可部分地移動以與靜止的對應刀具22切割接合，這將在下 面詳細說明。 20 抽線裝置24可由一氣動操作的活塞-氣缸驅動器形式 的線性驅動器27驅動樞轉。該驅動器27包括一相對於x_y工 作堂10靜止的氣缸28，其活塞桿29可在回應氣缸28的氣動 致動時直線移動。對氣缸28的氣動致動通過一可由縫紉機 的控制系統觸發的電磁閥（未示出）進行，其中由一壓縮空氣 *200536979 源（未tf出）來進行壓縮空氣的供應。 活基梓29在其外側自由端附近由_導向支座川引導。 /、有…槽32的驅動塊31固定在活塞桿29上，該滑槽32 橫向於活塞桿29的移動方向延伸。一鉸接桿傳動裝置34的 5 驅動扣33的一個端部通過一導向輥35在該滑槽32内被引 ^和支承。傳動裝置34包括一傳動桿36和一從動桿37，兮 傳動彳干36叙接到驅動桿遠離導向輕％的端部上；該從動 才干不了相對轉動地與樞轉支承件25上的抽線裝置24連 接。當活塞桿29移出氣缸28即向第3圖右側移動時，則抽線 10裝置24從其在第3圖所示的停止位置朝向靜止的對應刀具 22逆時針移動。 在靜止的對應刀具22旁邊，即在它朝向抽線裝置24的 一側，設有一線偏轉裝置38。第4圖所示的線偏轉裝置38容 納在一線偏轉支承件39内，該線偏轉支承件39相對於^乂工 15作臺10也是靜止的。在線偏轉支承件39中設有一向上開口 的槽40 ’該槽4〇沿該支承件的縱向延伸並且該槽中可自由 樞轉地容納有線偏轉裝置38的一由彈簧鋼絲製成的直的支 承段41。該支承段41通過一螺栓42固定以防止任何無意間 的拆除或從支承件39中掉落。實際的桿形線偏轉器43從線 20偏轉裝置38的支承段41的一端以一角度延伸。一樞轉弓部 44在另一端沿相同的方向以一角度延伸，僅在第$和6圖中 可見的該弓部44的自由端45由相應的線偏轉裝置38的扭轉 預加載荷保持在支承件39内。該預加載荷是這樣的：樞轉 弓部44和通過支承段41與其連接的線偏轉器43在無載荷狀 •200536979 態處於第4圖中實線所示的工作位置，而當樞轉弓部料被相 應地抵抗扭轉預加載荷致動時，弓部44和支承段“向上柩 轉到第4圖中虛線所示的停止位置。 對線偏轉器43的樞轉致動也由線性驅動器27實現。爲 5此，將一操作桿47可繞一枢軸48枢轉地安裝到一角形的金 屬片支承件46上，該支承件46相對於x_y工作臺靜止。操作 桿47爲-角桿，並以一主要爲水平的上部操作區段49支靠 在線偏轉裝置38的樞轉弓部44上。角形的操作桿47的一基 本上向下伸出的重定區段50在-側支靠在—銷形式的重^ Π)止擋件W，該止擋件51安裝在傳動塊犯。一也爲鎖形 式的限位止擋件52形成在金屬片支承件46上並位於操作 區段49和重定區段50之間的内側區域。 當根據第5圖的視圖線偏轉器43和樞轉弓部料一起處 在上部停止位置-即抽線裝置24處於第2和3圖所示的向後 的停止位置時，則傳動塊31位於與氣紅28相鄰的位置，即 活塞桿29縮回氣缸28内。在傳動塊31的這一位置，安裝在 傳動塊上並相應地支靠在操作桿47的重定區段5〇上的重定 止擋件51使所述傳動塊克服預加扭矩載荷向上—在第^ 中逆時針—樞轉到其停止位置。但如果使活塞桿四從氣虹 28中移出以沿第2和3圖中的逆時針方向操作抽線裳置μ， 則重定止擋件51放開操作桿π的操作區段的，從而拖轉弓 部料可通過部分釋放其預加載荷而向下枢轉至足以使操作 :旱47的操作區段49靠在限位止播件52上，從而限定拖轉弓 #44的向下樞轉運動。在該位置，線偏轉㈣處在其工作 '200536979 位置。 相對於抽線裝置24的位置在線偏轉裝置38的上游，並 在線偏轉為43和樞轉弓部44之間，設有一用於圈結線12的 起始端54的可操作線夾53。該線夾53包括一與一由一柔性 ” /成的木性夾緊部56相配的剛性夾緊座55。該夾緊座 55和夾緊部56_起安裝在_角形支承件”上，該角形支承 件57固疋在部分支承板11上從而相對於x-y工作臺10是靜 止的，亚且該角形支承件上尤其還固定有刀具支承件23和 線偏轉支承件39。在夾緊座55的自由端附近，一操作銷％ ίο安裝在柔性夾緊部56上，該操作銷58穿過夾緊座55上的一 孔59並從該孔中伸出。在夾緊座55和夾緊部兄的自由端與 #作銷58之間限定了 一位於夾緊座55和夾緊部56之間的用 於圈結線12起始端54的錄區域60。當釋放操作銷58時， 柔性夾緊部56朝❾夾緊座55移動，從而可能如第7圖所示爽 15緊一攻樣的起始端54。當向操作銷58上作用相應的載荷 時，夾緊部56離開夾緊座55從而可***或移走起始端… 爲了致動線夾53，將-角形的控制桿61可才區轉一較小 角度地安裝到抽線裝置24上。該控制桿01在其朝向線夾53 的一端包括一僅在第7圖中可見並可與㈣銷叫目配合的 20控制按紐62。控制桿61在其另—端由一蝶形/支腿彈菁㈣ s_g)63載A，該彈簧63趨向於使操作_圍繞其與抽線 裝置24的鉸接接頭64順時針拖轉到達第2圖中實線所示的 位置。 如第8圖所示，位於抽線裝置24的可插轉的自由端的抽 12 200536979 • 鮮賴區域26包括—V形切口形式的對應切割邊緣65和 -位於所述切割邊緣下方的抽出邊緣的。該v形切口形式的 切割邊緣65抽出圈結線12的—尾㈣，然後將其引至對應 刀具22以進行切割，而抽出邊緣66僅用於將圈結線12的起 5始端54從保持該起始端的線_中抽出，但不切斷它。 下面將參考第9至η圖對操作模式進行說明。 在第9圖所示位置，圈結線12的起始端^從針孔附件9 4向線夹53，在該裝置處被夹緊保持。贿始端以一剩餘 ί 段68超過線夾53伸出。 1〇 現在將—縫料69以—種本身已知的方式***縫料夾 13 ’在此處該縫料被夾持在夾緊仙、16之間；然後縫製 一圓頭紐孔線縫70。主要通過使x-y工作臺1〇和夹在其上的 =料69-起沿y方向並—以有限的程度一相對於針孔附件9 沿X方向移動來進行對圓頭叙孔線縫7〇的縫製。對圓頭紐孔 15線縫70的縫製以常規方式進行。當然，圈結線12與針線6共 _纽縫7G。由於所述(縫製的）情況以及對針線6的切斷 是以本身已知的方式進行的，所以此處不再進行說明。 在所述縫製過程的最後，圈結線12的起始端54再次處 在與圓頭紐孔線縫7〇的縫製工作開始之前相同的位置。此 2〇外，圈結線12的尾段67從圓頭鈕孔線縫70延伸到針孔附件 9在圓頭鈕孔縫製工作的最後，由於針孔附件9再次接近 第9圖中所示的相對於縫料夾13的下部夾緊板16的位置， y作至10沿y方向移動，以使圓頭紐孔線縫7〇到達紐孔 d裝置18。在此通過從上向下相應地致動站座並通過 13 200536979 與刀具19相配合形成紐孔切口 71。在x-y工作臺1 〇的這一位 置，針孔附件9 —·如第1 〇和11圖所示一位於抽線裝置24和線 夾53之間。線偏轉器43位於圈結線12的起始端54上方。 現在插作線性驅動^§ 27 ’由此抽線裝置24以盆抽線和 5 切斷區域26沿朝向線夾53和對應刀具22的方向—第2圖中 的逆時針方向一移動。同時，已經向上移動到第5圖所示的 其停止位置的樞轉弓部44被釋放，從而向下移動到第6圖所 示的工作位置，這意味著線偏轉器43也向下樞轉，並向下 壓緊位於該偏轉器下方的圈結線12的起始端54，從而隨著 10抽線裝置24進一步向前移動，通過抽出邊緣66而不是ν形切 割邊緣65抓取該起始端54。離抽線裝置24較近的圈結線12 的尾段67已經被抽線和切斷區域26的形式爲ν形切口的切 割邊緣65抓取，並沿朝向對應刀具22的方向拖動。 在抽線裝置24的抽線和切斷區域26到達對應刀具22之 15前，控制桿61的控制按鈕62觸及柔性夾緊部56的操作銷 %，從而打·爽53。隨著抽線裝置⑽㈣應刀具朗 方向繼續移動’抽出邊緣66可將圈結線12的起始端54從線 失53中抽出。另—方面，由ν形切割邊緣&拖動的圈結㈣ 的尾段67被***線夾53。在抽出裝置24朝向對應刀具_ 2〇樞轉運動結束時，圈結線12的起始心已經從線夹μ中撤 出。該起始端54將落下。圈結線12的尾段67在對應刀具η 上被切斷。通過相應地設計控制按紐62，可在該位置再次 釋放操作銷58，從而關閉線夾53。蝶形彈扣有助於使控 制桿61移動回其初始位置。圈結線12的尾段67夾在線失Γ3 200536979 中。然後致動線性驅動器27以使活塞桿29縮回氣缸28内。 這樣，抽線裝置24再次樞轉回其在第2圖中所示的位置。線 偏轉裝置3 8再次向上柩轉到其在第5圖中所示的停止位 置，即樞轉弓部44由操作桿47的操作區段49強制向上移 5動’而且攜帶線偏轉器43向上移動。 當χ-y工作臺1 〇反向運動到第9圖所示的在針孔附件9 位於下部夾緊板16下方的位置時，在線切斷過程結束時貼 罪在線偏轉器43上的圈結線12的尾段67被從該處向下拉 動，從而移動到線偏轉器43下方並到達第9圖所示的位置。 1〇然後，在鈕孔縫製工作結束後，圈結線12的該尾段67成爲 用於下一次圓頭鈕孔線縫70縫製工作的圈結線12的起始端 54 ° 如第12圖所示，在所述切割操作之後，圈結線以的起 始端54和尾段67位於縫料69上。起始端54比尾段67長出剩 15餘段68。根據現有技術，該剩餘段68總要被切掉，從而弄 髒了縫紉機。將起始端54和尾段67通過鈕孔切口 7ι向下 拉，並在該處將它們縫合然後手工切除。 【圖式簡單說明】 第1圖是一圓頭鈕孔縫紉機的縱向側視圖，其示出一相 2〇對於針的處於一將放置待縫製的縫料的位置的χ-y工作臺； 第2圖爲根據第1圖中箭頭IU々x-y工作臺打開部分的放 大的視圖’该視圖逆時針旋轉了 9〇。； 第3圖是第2圖的細部放大視圖； 第4圖是一線偏轉裝置的透視圖； 15 200536979 4 第5圖是第3圖的線V-V上的與第3圖相比比例放大的剖 視圖，該圖轉動了 180°並且線偏轉裝置處在一停止位置； 第6圖是對應於圖5的視圖，其中線偏轉裝置處在一工 作位置； 5 第7圖是第3圖中VII-VII線上的線夾的細部視圖； 第8圖是根據第11圖中箭頭VII的抽線裝置和對應刀具 細部放大俯視圖； 第9圖是第3圖的一細部視圖，其中抽線裝置處在停止 •位置並且圈結線的起始端在放置縫料夾並縫製圓頭鈕孔線 10 縫之前保持在線夾中； 第10圖爲已經在縫料夾上設置圓頭鈕孔線縫之後的第 9圖的視圖； 第11圖是第9和10圖的視圖，其中抽線裝置朝向對應刀 具柩轉，和 15 第12圖是設有圓頭鈕孔的縫料的視圖，其圈結線起始 端和尾段懸掛在圓頭鈕孔線縫上。 16 200536979 【主要元件符號說明】The Augenknopfloch-automat mit CNC-Schrittmotortechnik 579/589 "manual describes this type of round-head buttonhole sewing machine, in which the loop-knitting thread and one that may be present in this example are supplied with the loop-knitting thread 20 and The gimp thread stitched together with it is cut off, leaving a long tail section. In a subsequent operation, the tail section of the loop wire and the possible core wrap The tail section of the type thread reliably crosses the tack and then sew. When the tail section is cut, the starting end of the loop thread held in the clamp is cut at the same time. This cuts it into a collection box and cuts it. 200536979 will stain the line segments of the sewing machine. The fact that two lines, namely the beginning and the end of the loop line, are cut during each cutting operation, will cause high wear of the cutting device. [Summary of the Invention] 5 An object of the present invention That is, the buttonhole sewing machine of the type described is improved in order to avoid the troublesome work of removing the remaining wire segments and reduce the wear on the cutting device. According to the present invention, this object is achieved by the following features, according to all The above-mentioned feature is provided with a line deflection device which can be pivoted from a rest position constituting a stop position to a rest position constituting a working position, in which the line deflection device lifts a loop line held in a clamp. The starting end is deflected out of the range of the corresponding tool. Since there is no starting end of the cutting wire, there is no cutting part to be removed. This can also be applied to the core-wrapped fancy wire. It reduces the wear on the cutting tool. According to The round buttonhole sewing machine of the present invention is used to sew round buttonhole stitches, but it can also be used to sew other types of buttonholes and even shoelace holes. The drawings are briefly explained below with reference to the drawings for an exemplary implementation. In the description of the examples, other features, details and advantages of the present invention will be apparent, among which: FIG. 1 is a longitudinal side view of a round-head buttonhole sewing machine, which shows a position relative to the needle at a seam to be sewn. The xy table of the material position; Figure 2 is an enlarged view of the open part of the Xy table according to the arrow II in Figure 1, the view is rotated 90 ° counterclockwise; Figure 3 is Figure 2 Enlarged detail view; 6 200536979 FIG. 4 is a perspective view of a line deflection device; FIG. 5 is a cross-sectional enlarged view of the line VV of FIG. 3 compared to FIG. 3, which is rotated 180 ° and the line deflection device In a stop position; FIG. 6 is a view corresponding to FIG. 5, wherein the line deflection device is in a working position; FIG. 7 is a detailed view of the clip on the line VII-VII in FIG. 3; FIG. 8 The figure is an enlarged top view of the thread drawing device and the corresponding tool according to the arrow VII in FIG. 11; FIG. 9 is a detailed view of FIG. 3, where the thread drawing device is at the stop 10 position and the starting end of the loop line is placed in the seam Hold the clamp and sew the round buttonhole seam before sewing. Figure 10 is the view of Figure 9 after the round buttonhole seam has been set on the sewing clamp, and Figure 11 is Figures 9 and 10. A view of the thread drawing device with 15 pole turns toward the corresponding knife, and FIG. 12 is a view of the sewing material provided with a round buttonhole, and the starting end and tail of the loop line are suspended from the seam of the round buttonhole. [Embodiment 3 Detailed description of the preferred embodiment 20] As shown in Fig. 1, a round-head buttonhole sewing machine is C-shaped, it has a top arm 1, a lower base plate 2 in the form of a shell, and a connection two Part of an approximately vertical upright 3. An arm shaft 4 is supported in the arm 1 in a conventional manner; the arm shaft 4 can be driven by a drive motor (not shown). The drive of a vertical needle bar with a needle 5 which can be moved in the z-direction is derived from this arm shaft 4 in the usual way. The 200536979 auxiliary needle 5 is used to supply the needle thread 6 from a needle thread supply source (not shown). Below the needle bar with the needle 5, a crochet support 7 is provided in the base plate 2. The crochet support 7 has a crochet (not shown) which can be driven to rotate about a vertical axis 8. The actuation of the crochet holder 7 is carried out in the usual manner, as is known, for example, from DE ΐ 98708777 5AK (corresponding to US patent 6095066). Above the crochet support 7 in the base plate 2, a needle hole attachment (thmat hall, such as a needle) through which a needle passes is provided. 9 On the base plate 2, a -χ · γ jade table 1G is provided; the jade table is-may A cross slide that moves in two horizontal coordinate directions, the X direction and the y direction. The ten-word workbench 10 has a conventional design known, for example, from DE 19807771 Al (corresponding to US patent 6095066). The actuation of the table 10 is performed by an X drive and a -y drive, which are positioning motors, usually step motors are preferred, but also adjustable DC motors. These drives are not shown. The x-y table 10 is provided with a two-piece support plate, which is composed of two I5 partial support plates 11 and 11. These partial support plates are called cymbals and are easily removed and held on the x-y table. Part of the supporting plates u, u covers the crochet support 7, and when the teeth are inserted into a looped wire supplied by a looped wire supply source (not shown), the part of the supported loops u, u 'must be removed. A core-wrapped fancy thread is also available, which is generally known and therefore not shown specifically. 20 A sewing clamp 13 is provided with a pivoting two-arm support 14. An upper clamping plate 15 is provided at the free end of the strut 14. The pivoting actuation of the strut 14 and thus the upper clamping plate 15 is carried out via a driving state (not shown) located in the base plate 2 which corresponds to us 6647905 B2 at Ep 1354993) Detailed description. A lower tension plate 16 is assigned to the upper clamp 200536979 tightening plate 15; the lower clamping plate is fixed on a part of the support plate 丨 丨. The space above the partial support plates 11, 11 'is covered by a cover 17, which allows the lower clamping plate 16 to remain free to move and is adjacent to the lower clamping plate. A button hole cutting device 18 is provided in the y direction downstream of the upper clamping plate 15, that is, between the upper clamping plate 5 15 and the upright 3. The cutting device 18 includes: a cutter 19 disposed in the base plate 2 and immovable in the z direction; and an anvil 20 disposed vertically above the cutter 19 in the arm 2 and driving the anvil along The z direction moves downwards and upwards towards the tool. A design of this type is known, for example, from DE 19916660 C1 (corresponding to US 6220192 A). In the xy table 10, a wire cutting device 21 is provided. The wire cutting device 21 has a stationary corresponding tool 22 that is replaceably fixed to a tool support 23, which is fixed to a partial support. The plate n is itself stationary with respect to the xy table 10. A wire drawing device 24 is disposed opposite the corresponding cutter 22, and the wire drawing device is a hook-shaped double-arm lever type. The wire drawing device 24 is pivotally mounted on a part of the support plate 丨 丨 by a pivot support 25 at one end. The other free end of the wire drawing device 24 includes a wire drawing and cutting area 26 which can be partially moved to cut into engagement with a stationary counterpart tool 22, which will be described in detail below. 20 The thread drawing device 24 can be pivoted by a linear drive 27 in the form of a pneumatically operated piston-cylinder drive. The actuator 27 includes a cylinder 28 which is stationary with respect to the x_y workshop 10, and its piston rod 29 can move linearly in response to the pneumatic actuation of the cylinder 28. The pneumatic actuation of the cylinder 28 is performed by a solenoid valve (not shown) which can be triggered by the control system of the sewing machine, wherein a compressed air * 200536979 source (not tf out) is used to supply compressed air. Living base azimuth 29 is guided by the guide bearing Chuan near its outer free end. The driving block 31 having a groove 32 is fixed on the piston rod 29, and the sliding groove 32 extends transversely to the moving direction of the piston rod 29. One end of the 5 driving buckle 33 of a hinge lever transmission 34 is guided and supported in the slide groove 32 by a guide roller 35. The transmission device 34 includes a transmission rod 36 and a driven rod 37. The transmission shaft 36 is connected to the end of the driving rod away from the guiding light; the driven device cannot rotate relative to the pivoting support 25. The wire drawing device 24 is connected. When the piston rod 29 moves out of the cylinder 28 and moves to the right in FIG. 3, the drawing line device 24 moves counterclockwise from its stop position shown in FIG. 3 toward the stationary corresponding tool 22. A line deflection device 38 is provided beside the stationary counterpart tool 22, i.e., on its side facing the wire drawing device 24. The line deflection device 38 shown in Fig. 4 is accommodated in a line deflection support 39, which is also stationary with respect to the work table 10. An upwardly-opening groove 40 ′ is provided in the line deflection support 39. The groove 40 extends in the longitudinal direction of the support, and a straight support made of spring steel wire is rotatably accommodated in the groove. Paragraph 41. The support section 41 is secured by a bolt 42 to prevent any inadvertent removal or dropping from the support member 39. The actual rod-shaped line deflector 43 extends at an angle from one end of the support section 41 of the line 20 deflection device 38. A pivoting bow 44 extends at an angle in the same direction at the other end. The free end 45 of the bow 44 is only visible in Figures 6 and 6 and is held by the torsional preload of the corresponding line deflection device 38. Within the support member 39. The pre-loading is as follows: the pivoting bow 44 and the line deflector 43 connected to it through the support section 41 are in a no-load state. • 200536979 state is in the working position shown by the solid line in Figure 4, and when the pivoting bow When the parts are actuated correspondingly against torsional pre-loading, the bow 44 and the support section "upwardly move to the stop position shown by the dotted line in Fig. 4. The pivotal actuation of the line deflector 43 is also performed by a linear actuator 27 to achieve 5. For this purpose, an operating lever 47 can be pivotally mounted on an angular sheet metal support 46 about a pivot axis 48, and the supporting member 46 is stationary relative to the x_y table. The operating lever 47 is an -angle lever. An upper operating section 49, which is mainly horizontal, rests on the pivoting bow 44 of the line deflection device 38. A substantially downwardly projecting resetting section 50 of the angled operating lever 47 rests on the side. In the form of a pin, the stopper W is installed on the transmission block 51. A limit stopper 52, also in the form of a lock, is formed on the sheet metal support 46 and is located in the operating section. Inside area between 49 and reset section 50. When the deflector 43 and the pivoting bow are seen according to the view in FIG. 5 The material is in the upper stop position-that is, when the wire drawing device 24 is in the backward stop position shown in Figures 2 and 3, the transmission block 31 is located adjacent to the gas red 28, that is, the piston rod 29 is retracted to the cylinder 28 In this position of the transmission block 31, the resetting stopper 51 mounted on the transmission block and correspondingly resting on the resetting section 50 of the operating lever 47 causes the transmission block to overcome the pre-torque load upward—at Counterclockwise in the ^ th—pivot to its stop position. However, if the piston rod four is moved out of the gas rainbow 28 to operate the thread drawing mechanism μ in a counterclockwise direction in FIGS. 2 and 3, the stopper 51 is reset Let go of the operating section of the joystick π, so that the towing bow can be pivoted downward enough by partly releasing its preload to make the operation: the operating section 49 of the dry 47 leans against the limit stop 52 Up, thereby limiting the downward pivoting motion of the towing bow # 44. In this position, the line deflection ㈣ is at its working position '200536979. Relative to the position of the wire drawing device 24, it is upstream of the line deflection device 38, and the line deflection is Between 43 and the pivoting bow 44, there is a The wire clamp 53 is operated. The wire clamp 53 includes a rigid clamping base 55 which is matched with a flexible clamping part 56. The clamping seat 55 and the clamping portion 56 are mounted on an angular support member. The angular support member 57 is fixed on a part of the support plate 11 so as to be stationary with respect to the xy table 10. In particular, a tool support 23 and a line deflection support 39 are fixed on the piece. Near the free end of the clamping base 55, an operating pin is mounted on the flexible clamping portion 56, and the operating pin 58 passes through the clamping base. A hole 59 on 55 extends from the hole. Between the free end of the clamping base 55 and the clamping part and # work pin 58 is defined a space between the clamping base 55 and the clamping part 56 Recording area 60 for the starting end 54 of the knotting wire 12. When the operating pin 58 is released, the flexible clamping portion 56 moves toward the yoke clamping seat 55, so it is possible to tighten the starting end of the 15-tight sample as shown in FIG. 54. When a corresponding load is applied to the operation pin 58, the clamping portion 56 leaves the clamping seat 55 so that the starting end can be inserted or removed ... In order to actuate the clamp 53, the -angle control lever 61 can be rotated Installed at a small angle to the wire drawing device 24. The control lever 01 at its end facing the wire clamp 53 includes a visible and only visible in Figure 7 and The 20 control button 62 which cooperates with the pin pin. The control lever 61 is loaded with a butterfly / leg on the other end s_g) 63 carrying A, and the spring 63 tends to make the operation _ around it and the draw line. The articulated joint 64 of the device 24 is turned clockwise to the position shown by the solid line in Figure 2. As shown in Figure 8, the pump 12 located at the free end of the pluggable device 24 is 200536979 • The fresh area 26 includes —The corresponding cutting edge 65 in the form of a V-shaped cutout and the extraction edge located below the cutting edge. The cutting edge 65 in the form of a V-shaped cutout draws the tail of the loop line 12 and then leads it to the corresponding cutter 22 to Cutting is performed, and the extraction edge 66 is only used to extract the starting end 54 of the loop wire 12 from the line _ that holds the starting end, but does not cut it. The operation mode will be described below with reference to FIGS. 9 to n. In the position shown in FIG. 9, the starting end of the looped wire 12 is clamped and held at the device from the pinhole attachment 94 to the clamp 53. The beginning of the bridging extends beyond the clamp 53 with a remaining section 68. 1〇 Now insert the sewing material 69 into the sewing material clamp 13 in a manner known per se. The material is clamped between the clamp cents, 16; then a round head buttonhole seam 70 is sewn. Mainly by making the xy table 10 and the clamped material = 69-starting in the y direction and-with limited Degree 1 moves in the X direction with respect to the pinhole attachment 9 to sew the round-head threaded seam 70. The round-shaped buttonhole 15 is sewn 70 in a conventional manner. Of course, the loop stitch 12 and the needle thread 6 Totally 7K. Since the (sewing) situation and the cutting of the needle thread 6 is performed in a manner known per se, it will not be described here. At the end of the sewing process, the knot 12 The starting end 54 is again at the same position as before the sewing work of the round head buttonhole seam 70 was started. In addition, the tail section 67 of the looped thread 12 extends from the round buttonhole seam 70 to the pinhole attachment 9 at the end of the round buttonhole sewing work. Since the pinhole attachment 9 is close to the position shown in FIG. 9 again Relative to the position of the lower clamping plate 16 of the sewing material clamp 13, y is moved to 10 in the y direction, so that the round head buttonhole seam 70 reaches the buttonhole d device 18. Here, the buttonhole cutout 71 is formed by actuating the station accordingly from top to bottom and cooperating with the tool 19 by 13 200536979. At this position of the x-y table 10, the pinhole attachment 9 is located between the wire drawing device 24 and the clamp 53 as shown in Figs. 10 and 11. The wire deflector 43 is located above the starting end 54 of the loop wire 12. Now insert it as a linear drive ^ § 27 ′ Thus, the wire drawing device 24 moves with the potted wire and 5 cutting area 26 in the direction toward the wire clamp 53 and the corresponding cutter 22-counterclockwise in the second figure. At the same time, the pivoting bow 44 which has been moved upward to its stop position shown in FIG. 5 is released, thereby moving downward to the working position shown in FIG. 6, which means that the line deflector 43 is also pivoted downward. And press down the starting end 54 of the loop wire 12 located below the deflector, so as the 10 drawing device 24 moves further forward, grab the starting end 54 by pulling out the edge 66 instead of the v-shaped cutting edge 65 . The tail section 67 of the loop line 12 which is closer to the drawing device 24 has been grasped by the cutting edge 65 in the form of a v-shaped cut of the drawing line and the cutting area 26, and dragged in the direction corresponding to the cutter 22. Before the thread drawing and cutting area 26 of the thread drawing device 24 reaches 15 of the corresponding tool 22, the control button 62 of the control lever 61 touches the operation pin% of the flexible clamping portion 56 to hit 53. As the thread drawing device continues to move in the direction of the cutter, the drawing edge 66 can draw the starting end 54 of the looped wire 12 out of the thread loss 53. On the other hand, the tail section 67 of the loop knot 拖动 dragged by the v-shaped cutting edge & is inserted into the clip 53. At the end of the pivoting movement of the extraction device 24 towards the corresponding tool _20, the starting center of the loop wire 12 has been withdrawn from the thread clamp μ. The starting end 54 will fall. The tail section 67 of the loop line 12 is cut at the corresponding tool η. By designing the control button 62 accordingly, the operating pin 58 can be released again at this position, thereby closing the clamp 53. The butterfly spring helps to move the control lever 61 back to its original position. The tail section 67 of the loop line 12 is sandwiched in the line loss Γ3 200536979. The linear drive 27 is then actuated to retract the piston rod 29 into the cylinder 28. In this way, the thread drawing device 24 is pivoted back to its position shown in FIG. 2 again. The line deflection device 38 is again upwardly turned to its stop position shown in FIG. 5, that is, the pivot bow 44 is forcibly moved upward 5 times by the operation section 49 of the operation lever 47 and the line deflector 43 is carried upward mobile. When the χ-y table 10 moves in the reverse direction to the position where the pinhole attachment 9 is located below the lower clamping plate 16 shown in FIG. 9, the loop line on the line deflector 43 is attached at the end of the online cutting process. The trailing section 67 of 12 is pulled downward from this point, thereby moving below the line deflector 43 and reaching the position shown in FIG. 9. 10 Then, after the buttonhole sewing work is finished, the tail section 67 of the loop stitch 12 becomes the starting end 54 of the loop stitch 12 for the next round head buttonhole stitch 70 sewing work. As shown in FIG. 12, After the cutting operation, the starting line 54 and the tail section 67 of the loop line are located on the sewing material 69. The starting end 54 is longer than the trailing section 67 by 15 remaining sections 68. According to the prior art, this remaining section 68 is always cut off, thereby dirtying the sewing machine. The starting end 54 and the tail section 67 are pulled down through a buttonhole incision 7m, and they are sutured there and then manually removed. [Brief description of the drawings] FIG. 1 is a longitudinal side view of a round-head buttonhole sewing machine, which shows a phase 20 for the needle, a χ-y table at a position where the sewing material to be sewn is placed; The figure is an enlarged view of the open part of the IU々xy table according to the arrow in Fig. 1 'This view is rotated 90 ° counterclockwise. Figure 3 is a detailed enlarged view of Figure 2; Figure 4 is a perspective view of a line deflection device; 15 200536979 4 Figure 5 is a cross-sectional view enlarged on line VV of Figure 3 compared to Figure 3, The figure is rotated by 180 ° and the line deflection device is in a stop position; FIG. 6 is a view corresponding to FIG. 5 in which the line deflection device is in a working position; FIG. 7 is a line VII-VII in FIG. 3 Figure 8 is a detailed view of the thread drawing device and the corresponding cutter according to the arrow VII in Figure 11; Figure 9 is a detailed view of Figure 3 with the drawing device in the stop position And the starting end of the looping thread is kept in the clamp before the sewing material clamp is placed and the round-head buttonhole thread is sewn; Figure 10 is a view of Figure 9 after the round-head buttonhole thread has been set on the sewing clamp Figure 11 is a view of Figures 9 and 10, in which the thread drawing device is turned toward the corresponding tool, and Figure 15 is a view of the sewing material with a round buttonhole, with the beginning and tail of the loop line hanging Sew on round buttonhole. 16 200536979 [Description of main component symbols]
1…臂 2…基板 3···立柱 4…臂轴 5 · · ·針 6…針線 7…鈎針支座 8···垂直軸線 9···針孔附件 10…工作台 11,11’…支承板 12…圈結線 13…縫料爽 14…支桿 15…上部夾緊板 16…下部夾緊板 17…蓋 18…切割裝置 19···刀具 20…石占座 21…線切斷裝置 22···刀具 23…刀具支承件 24…抽線裝置 25…樞轉支承件 27…驅動器 28···氣缸 29…活塞桿 30…導向支座 31…驅動塊 32…滑槽 33…驅動桿 34…傳動裝置 35…導向輥 36…傳動桿 37…從動桿 38…線偏轉裝置 39…線偏轉支承件 40…槽 41…支承段 42…螺栓 43…線偏轉器 44…樞轉弓部 45…自由端 46…支承件 47…操作桿 17 200536979 48…柩轴 60…爽緊區域 49…上部操作區段 61…控制桿 50···重定區段 62···控制按紐 51…重定止擋件 63…彈簧 52…限位止擋件 64…鉸接接頭 53…線夾 65…切割邊緣 54…起始端 66…抽出邊緣 55…夾緊座 67…尾段 56…夾緊部 68···剩餘段 57…支承件 69…縫料 58…操作銷 70…線縫 59···孔 71·.·切口1 ... arm 2 ... base plate 3 ... post 4 ... arm shaft 5 ... pin 6 ... thread 7 ... crochet holder 8 ... vertical axis 9 ... pinhole attachment 10 ... table 11,11 '... Support plate 12 ... Knot line 13 ... Sew material 14 ... Pole 15 ... Upper clamping plate 16 ... Lower clamping plate 17 ... Cover 18 ... Cutting device 19 ... Knife 20 ... Stone occupying seat 21 ... Wire cutting device 22 ... Tool 23 ... Tool support 24 ... Wire drawing device 25 ... Pivot support 27 ... Driver 28 ... Cylinder 29 ... Piston rod 30 ... Guide support 31 ... Drive block 32 ... Slot 33 ... Drive rod 34 ... transmission device 35 ... guide roller 36 ... transmission rod 37 ... driven rod 38 ... line deflection device 39 ... line deflection support 40 ... groove 41 ... support section 42 ... bolt 43 ... line deflector 44 ... pivot bow 45 … Free end 46… support 47… lever 17 200536979 48… shaft 60… tight area 49… upper operation section 61… lever 50… reset section 62 control button 51… reset stop Stopper 63 ... Spring 52 ... Limit stop 64 ... Hinged joint 53 ... Clamp 65 ... Cutting edge 54 ... Starting end 66 ... Extracting edge 55 ... Clamping seat 67 ... Tail section 56 ... Clamping section 68 ... Remaining section 57 ... Support 69 ... Sewing material 58 ... Operation pin 70 ... Seam 59 ... hole 71 ...
1818