1229159 玖、發明說明： 【發明所屬之技術領域】 本發明係關於一種圓筒型縫紉機，特別是關於一種圓 型縫紉機之移送齒之傳動結構。 【先前技術】 一般圓筒型縫紉機之機台部係由矩形箱狀之機台 部，及由機台主部突出於側方之圓筒部，圓筒部上面設 對向於縫紉機臂之前端之縫紉針之針板。圓筒部設置有 移送齒及後移送齒，其於針板之落針孔前後之移送齒用 出沒，圓筒部内設置有與縫紉針協同動作來形成縫目之 環器，及驅動前移送齒與後移送齒之驅動機構。 圓筒型縫紉機驅動前移送齒與後移送齒之驅動機構 動力傳達機構均以縫紉機之主動軸為主轴，其由機台部 主部一直延伸到圓筒部。該驅動機構驅動主動軸為單方 旋轉，並使鈎環器與針棒同步地予以驅動，同時，將主 軸之單方向旋轉運動轉換為規定角度範圍内往復旋轉 動，以帶動設置由主部延伸至圓筒部之上下移送軸及前 移動軸，使之同步於前、後移送齒、針棒及鈎環器而實 上下方向運動及前後方向運動。惟，此種圓筒型縫紉機 為了使主動軸之軸心與針板之關係確保良好之縫紉條件 相互間係以一定之位置關係，特別是上下方向隔著一定 間隔關係為宜，如果主動軸之軸心與針板之配置關係不 特定關係時，即由主動軸之動力分配所動作之針棒、鈎 器、移送齒上動作定時時機會發生微妙之偏差，無法保 326\專利說明書(補件)\92·11\TF924516 5 筒 主 有 前 孔 鈎 及 之 向 動 運 後 施 之 在 環 持 1229159 良好之縫紉條件。 習知之圓筒型縫紉機，欲將移送齒驅動用之部分的動 傳達機構延伸至圓筒部之主動軸部配設適合於移送齒之 動位置時，該主動軸與針板無法配置於縫紉條件良好之 置關係，因此無法獲得良好之縫紉條件之動作狀態，又 相反地將主動軸配置相對於針板而言，最適合於縫紉條 最佳之位置關係是需要在主動軸之端部或移送台之周邊 置主動轴與移送齒間之驅動裝置的運動變換機構，如此 圓筒部小型化將受其限制，對於縫製物之適用範圍亦將 到限定。 如上述，中華民國專利公告第 2 8 3 1 7 3號「圓筒型縫 機」之說明書將主動軸配置相對於針板而縫紉條件良好 位置之下，仍然可以使圓筒部小直徑化，使之適用於縮 口等之小直徑之筒狀縫製物的縫製。然而，欲縫製更小 徑之筒狀縫製物，該專利受限於傳動裝置之結構，而無 使圓筒部更小型化。 【發明内容】 為改善上述之結構，本發明提供一種圓筒型縫紉機之 送齒之傳動結構，其在主動軸之端部或移送台之周邊設 主動軸與移送齒間之傳動結構配置最適合於縫紉條件最 之位置關係。 本發明另一目的係提供前、後移送齒之移送行程的 整，以適用於不同布料的縫製。 本發明提供一種圓筒型縫紉機之移送齒之傳動結構， 326\專利說明書(補件)\92-l 1\TF924516 6 力 驅 位 9 件 設 y 受 紉 之 袖 直 法 移 置 佳 調 縫 1229159 紉機呈矩形箱狀之機台部之主部朝側方突出，機台部 狀之圓筒部上面設有一針板，該圓筒部設置有一前移 及一後移送齒，該前移送齒及該後移送齒於針板之落 前後之移送齒用溝出沒，藉由傳動機構傳動前移送齒 移送齒以橢圓形路徑而循環運動。其特徵為包含有： 送齒組件設置有前移送齒及後移送齒；一主動軸設置 台部之主部，以單方向旋轉運動；一運動變換機構將 軸之單方向旋轉運動轉換為預定角度範圍内的往復運 一移送前後主軸組件隨著運動變換機構將主動軸之單 旋轉運動之轉換而為預定角度範圍内的往復運動；一 上下傳動軸組件隨著運動變換機構將主動軸之單方向 運動之轉換而為預定角度範圍内的往復運動，在往復 中使移送齒組件上下方向運動；一固定移動方向組件 送齒組件上下方向運動時而不會左右搖擺；一第一移 後傳動軸組件樞設於移送上下傳動軸組件之軸心處， 移送上下傳動軸組件之傳動而為預定角度範圍内的往 動，在往復運動中使移送齒組件前後方向運動；以及 第二移送前後傳動軸組件隨著移送前後主軸組件之傳 為預定角度範圍内的往復運動，在往復運動中同時與 移送前後傳動軸組件使移送齒組件前後方向運動。 【實施方式】 圖1為本發明之圓筒型縫紉機之外形圖，圖2〜4為 明之驅動前、後移送齒而設置於機台部内之機構爆炸 圖5為圖2〜4之機構組合圖。以下參照圖1至圖5說 326\專利說明書(補件)\92-11 \TF924516 呈筒 送齒 針孔 及後 一移 於機 主動 動； 方向 移送 旋轉 運動 使移 送前 隨著 復運 y -— 動而 第一 本發 圖， 明本 1229159 發明之一較佳具體例。 機台部1 0之右端朝上方設置有臂部Π，而構成縫紉機 本體1 2。機台部1 0係由呈矩形箱狀之機台部1 0之主部1 3 朝側方突出，機台部1 0呈筒狀之圓筒部1 4上面設有一針 板1 5。 在臂部1 1之前端下部且對向於針板1 5設置有數支縫紉 針1 6 a之針棒1 6，其隨著驅動機構（未繪示）而上下往復地 縫製衣物。又，在針板1 5下方之圓筒部1 4設有鈎環器（未 繪示），同時，圓筒部14設置有一前移送齒17及一後移送 齒1 8，前移送齒1 7及後移送齒1 8於針板1 5之落針孔前 後之移送齒用溝（未繪示）出沒，藉由傳動機構傳動前移送 齒1 7及後移送齒1 8以橢圓形路徑而循環運動。因此，筒 狀之縫製物係從左側方套合於圓筒部1 4，以置放於針板1 5 上，由前移送齒1 7及後移送齒1 8以每次規定量移送縫製 物於後方，並由縫紉針1 6 a及鈎環器協同動作，而實施縫 製以形成縫目。 主動軸2 1設置於機台部1 0之主部1 3，由馬達（未繪示） 驅動而為單一方向的旋轉運動。設置於機台部 1 0之主部 1 3之運動變換機構2 6、3 1分別將主動軸2 1之單方向旋轉 運動轉換為預定角度範圍内的往復運動。一前後移送桿2 7 套設於運動變換機構2 6上，一移送前後主轴2 3係平行於 主動軸2 1而配設於機台部1 0之主部1 3内，並由一對前後 移送桿連桿2 8、2 9枢接於前後移送桿2 7，及一連桿塊3 0 樞接於前後移送桿連桿2 8。如此，移送前後主轴2 3隨著 8 3M\專利說明書(補件)\92-l 1\TF924516 1229159 運動變換機構2 6將主動軸2 1之單方向旋轉運動之轉換而 為預定角度範圍内的往復運動。 一移送上下傳動軸3 5藉由連桿3 7樞接於運動變換機構 3 1，使移送上下傳動軸3 5隨著主動軸2 1之傳動而為預定 角度範圍内的往復運動。移送前後傳動軸3 2 B樞設於移送 上下傳動軸3 5之軸心處，隨著移送上下傳動軸3 5之傳動 而為預定角度範圍内的往復運動。 移送前後主軸2 3同時套設於連桿塊3 0、7 2，移送前後 主軸2 3的一側具有弧狀長軸3 2 A，一滑塊6 3套設於弧狀 長軸3 2 A上，連桿6 4、6 5枢接於滑塊6 3上，當移送前後 主軸2 3為預定角度範圍内的往復運動時，其弧狀長軸3 2 A 以左右弧狀擺動，使得套設其上之滑塊6 3帶動連桿6 4為 左右方向之移動，進而由連桿64之移動帶動連桿65為預 定角度範圍内的往復運動，而使得樞設於連桿6 5之移送前 後傳動軸3 2 A被帶動以預定角度範圍内的往復運動。 前移送齒1 7及後移送齒1 8分別鎖固於成板狀之前送具 台41及後送具台42，再將前送具台41及後送具台42置 放於送具軸43之平面上，送具台蓋44鎖固於送具軸43, 並蓋住及分隔前送具台41及後送具台42。固定塊45、46 將送具軸4 3定位於其中，而使送具軸4 3以上下方向移動， 而不會左右方向擺動。套設於移送上下傳動軸35之凸軸的 滑塊4 9是設置於送具軸4 3之凹槽中，當移送上下傳動軸 3 5以預定角度範圍内的往復運動時，可帶動送具軸4 3為 上下方向的移動，即帶動前移送齒17及後移送齒18上下 9 326\專利說明書(補件)\92-ll\TF924516 52 1229159 方向的移動。移送前後傳動軸3 2 A樞接於連桿5 Ο，軸 的一端樞接於滑塊5 1，該滑塊5 1置於連桿5 0之凹槽， 52的另一端穿過送具台蓋 44之滑槽並樞接於前送具 4 1，當移送前後傳動軸3 2 Α以預定角度範圍内的往復運 時，可帶動軸5 2在送具台蓋4 4之滑槽以前後方向滑動 進而帶動前送具台41與前移送齒17以前後方向移動。 移送前後傳動軸3 2 B樞接於連桿5 3 ，並以軸5 4樞接 桿53、55，軸56在穿過送具台蓋44之滑槽及前送具台 之滑槽後，再分別樞接連桿5 5及後送具台4 2，當移送 後傳動軸3 2 B以預定角度範圍内的往復運動時，可帶動 桿5 3、5 5及軸5 6，使軸5 6在送具台蓋4 4之滑槽及前 具台41之滑槽以前後方向滑動，進而帶動後送具台42 後移送齒1 8以前後方向移動。 在調整滑塊6 3與弧狀長軸7 1之上下位置時，使得連 6 4左右移動的距離隨之調整，當連桿6 4左右移動的距 調整時，則被帶動之連桿6 5的往復運動之角度範圍亦隨 調整，進而調整樞接於連桿6 5之移送前後傳動軸3 2 A的 復運動之角度範圍，如上述，藉由移送前後傳動軸3 2 A 動之前移送齒1 7進而調整其移送量，藉此，可調整前移 齒17與後移送齒18的差動比。 下面說明上述所構成之圓筒型縫紉機之動作。 設於機台部1 0之主部1 3内之主動軸2 1被驅動而使 紉機動作時，針棒 1 6與鈎環器亦隨之動作，同時主動 2 1之單方向旋轉運動可由運動變換機構2 6變換為規定 326\專利說明書(補件)\92-ll\TF924516 10 軸 台 動 5 連 41 前 連 送 與 桿 離 之 往 傳 送 縫 軸 角 1229159 度範圍内之往復旋轉運動，藉此傳動於機台部 1 〇之主部 1 3内的移送前後主軸2 3，使移送前後主軸2 3而為規定角 度範圍内之往復旋轉運動。移送前後主軸2 3藉由滑塊6 3 及連桿6 4、6 5等，以傳動由機台部1 0之主部1 3延伸至圓 筒部1 4之移送前後傳動轴3 2 A為規定角度範圍内之往復旋 轉運動，主動軸 21之單方向旋轉運動可由運動變換機構 3 1變換為規定角度範圍内之往復旋轉運動，並藉著連桿3 7 傳動於由機台部1 0之主部1 3延伸至圓筒部1 4之的移送上 下傳動軸3 5，使移送上下傳動軸3 5而為規定角度範圍内 之往復旋轉運動，由於移送前後傳動軸3 2 B樞設於移送上 下傳動軸3 5之軸心處，當移送上下傳動軸3 5為規定角度 範圍内之往復旋轉運動時，移送前後傳動軸3 2 B亦隨之規 定角度範圍内之往復旋轉運動。上下傳動軸3 5、移送前後 傳動軸3 2 A、3 2 B分別藉由相關之傳動機構（如滑塊4 9、5卜 連桿 5 0、5 3、5 5、軸 5 2、5 4、5 6 )，分別可使送具軸 43 以上下方向移動，及前移送台4 1、後移送台4 2以前後方 向移動，如此之移動可構成前移送齒1 7及後移送齒1 8以 橢圓形路徑循環運動，藉此，同步於縫紉針1 6 a與鈎環器 之動作，將嵌套於筒狀圓筒部1 4之筒狀縫製物可依前移送 齒1 7及後移送齒1 8移送規定量移送至後方，而以進行縫 製。 如上述，主動軸21及主動軸21之單方向旋轉變換為適 合前移送齒17及後移送齒18之動作之規定角度範圍内之 往復旋轉運動的運動變換機構2 6、3 1，將其兩者均配置於 11 326\專利說明書(補件)\92-ll\TF924516 1229159 機台部1 0之主部1 3内，同時將運動變換機構2 6、3 1所變 換之規定角度範圍内之往復旋轉運動傳動於前移送齒 17 及後移送齒 1 8之上下方向傳動機構及前後方向傳動機構 的上下傳動軸3 5、移送前後傳動軸3 2 A、3 2 Β，其由機台部 1 0之主部1 3延伸至圓筒部1 4，所以一方面可以將主動軸 2 1配置相對於針板1 5而縫紉條件上最理想的位置之下， 上下傳動軸3 5、移送前後傳動軸3 2 A、3 2 B成為傳動前移 送齒1 7及後移送齒1 8之動力傳動軸，如此之配置多了自 由性，所以在上下傳動軸 3 5、移送前後傳動軸 3 2 A、3 2 B 與移送傳動機構不需要配置特別之偏心量大之臂等，就可 以將其收納於圓筒部1 4以僅可能地緊湊而小直徑化，可以 達到縮小嵌入於圓筒部 1 4而縫製筒狀縫製物之最小直 徑，明顯地擴大由圓筒型縫紉機所可縫製之筒狀縫製物之 適用範圍。 隨著縫製物之布料材質不同，需要調整前移送齒1 7及後 移送齒18的差動量，可藉由調整滑塊63與移送前後主軸 2 3之弧狀長軸71的上下位置。例如，當要增大前移送齒 1 7及後移送齒1 8的差動量時，則調整滑塊6 3在弧狀長軸 7 1略為上方的位置，可減少移送前後傳動軸3 2 A往復運動 之角度範圍，進而減少前移送齒1 7之移送量，藉此，可增 加前移送齒1 7與後移送齒1 8的差動比。反之，可減少前 移送齒1 7與後移送齒1 8的差動比。 本發明的目的係以一種圓筒型縫紉機之移送齒之傳動 結構，其之主動軸配置相對於針板而縫紉條件上最理想的 12 326\專利說明書(補件)\92-ll\TF924516 1229159 位置之下，上下傳動軸、移送前後傳動軸與移送傳動機構 不需要配置特別之偏心量大之臂等，就可以將其收納於圓 筒部以僅可能地緊湊而小直徑化，使其配置最適合於縫紉 條件最佳之位置關係。 本發明另一目的係提供可調整前、後移送齒之差動比的 調整機構，而調整出前、後移送齒之個別移送行程，以適 用於不同布料的縫製。 雖然本發明已參照較佳具體例及舉例性附圖敘述如 上，惟其應不被視為係限制性者。熟悉本技藝者對其形態 及具體例之内容做各種修改、省略及變化，均不離開本發 明之範圍。 【圖式之簡單說明】 圖1為本發明之圓筒型縫紉機之外形圖； 圖2為本發明之驅動前、後移送齒而設置於機台部内之 機構爆炸圖（一）； 圖3為本發明之驅動前、後移送齒而設置於機台部内之 機構爆炸圖（二）； 圖4為本發明之驅動前、後移送齒而設置於機台部内之 機構爆炸圖（三）；及 圖5為圖2〜4之機構組合圖。 【元件符號之說明】 10 ........機台部 11 ........臂部 12 ........縫紉機本體 13 326\專利說明書(補件)\92-ll\TF924516 1229159 13 ........主部 14 ........圓筒部 15 ........針板 16 ........針棒 16a.......縫幼針 17 ........前移送齒 18 ........後移送齒 2 1........主動軸 23........移送前後主軸 26 ........運動變換機構 27 ........前後移送桿 28 ........前後移送桿連桿 29 ........前後移送桿連桿 30 ........連桿塊 3 1........運動變換機構 32 A.......移送前後傳動軸 3 2 B.......移送前後傳動軸 35........上下傳動軸 37........連桿 4 1........前送具台 42 ........後送具台 43 ........送具軸 44 ........送具台蓋 45 ........固定塊 141229159 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a cylindrical sewing machine, and more particularly to a transmission structure of a circular tooth sewing machine. [Prior technology] The machine part of a general cylindrical sewing machine is a machine part of a rectangular box shape, and a cylindrical part protruding to the side from the main part of the machine. The upper part of the cylindrical part is opposite to the front end of the sewing machine arm. Needle plate for sewing needle. The cylindrical part is provided with a feeding tooth and a rear feeding tooth, which are used to move the feeding tooth before and after the needle hole of the needle plate. The cylindrical part is provided with a looper that cooperates with the sewing needle to form a seam, and drives the front feeding tooth. And the drive mechanism of the backward feed tooth. Drive mechanism for driving forward and backward feed teeth of cylindrical sewing machine. The power transmission mechanism is based on the main shaft of the sewing machine, which extends from the main part of the machine to the cylindrical part. The driving mechanism drives the driving shaft to rotate unilaterally, and causes the shackle to be driven synchronously with the needle bar. At the same time, the unidirectional rotation of the main shaft is converted into a reciprocating rotation within a specified angle range to drive the setting from the main part to The cylinder moves up and down the feed shaft and the front move shaft to synchronize the forward and backward feed teeth, the needle bar and the hook and loop device to move up and down and back and forth. However, in order to ensure the relationship between the axis of the drive shaft and the needle plate, such a cylindrical sewing machine ensures a good sewing condition with a certain positional relationship with each other, especially with a certain interval in the up and down direction. When the relationship between the configuration of the shaft and the needle plate is not specific, that is, the needle rod, hook, and transfer teeth that are actuated by the power distribution of the active shaft may have subtle deviations at the timing of the action, which cannot guarantee 326 \ Patent Specification (Supplementary Documents) ) \ 92 · 11 \ TF924516 5 The barrel master has a front hole hook and it is applied to the ring holder 1229159 after moving. Good sewing conditions. In the conventional cylindrical sewing machine, if the drive transmission mechanism of the part for driving the tooth is extended to the driving shaft portion of the cylinder, the driving shaft and the needle plate cannot be arranged under sewing conditions Good positional relationship, so it is impossible to obtain a good operating condition of sewing conditions. Conversely, the position of the driving shaft is relatively suitable for the needle plate. The best positional relationship is that it needs to be at the end of the driving shaft or moved. The movement conversion mechanism of the drive device between the drive shaft and the transfer gear is set around the table. In this way, the miniaturization of the cylindrical part will be limited, and the scope of application for sewing products will also be limited. As mentioned above, the ROC Patent Bulletin No. 2 8 3 1 7 3 “Cylinder Type Sewing Machine” describes that the cylinder can be made smaller in diameter even if the drive shaft is positioned relative to the needle plate in a good sewing condition. It is suitable for sewing small diameter cylindrical sewing products such as necking. However, in order to sew a cylindrical product with a smaller diameter, the patent is limited to the structure of the transmission without making the cylindrical portion smaller. [Summary of the Invention] In order to improve the above-mentioned structure, the present invention provides a toothed transmission structure of a cylindrical sewing machine. The configuration of the transmission structure between the driving shaft and the transmission teeth at the end of the driving shaft or the periphery of the moving table is most suitable. The positional relationship depends on the sewing conditions. Another object of the present invention is to provide the adjustment of the feed stroke of the forward and backward feed teeth, so as to be suitable for sewing of different fabrics. The present invention provides a transmission structure for the transfer teeth of a cylindrical sewing machine. 326 \ Patent Specification (Supplement) \ 92-l 1 \ TF924516 6 force drive positions 9 sets of sleeves Straight displacement of fine adjustment seam 1229159 The main part of the machine part in the shape of a rectangular box of the machine protrudes to the side. A needle plate is provided on the cylindrical part of the machine part. The cylinder part is provided with a forward and a backward feed tooth, and the forward feed tooth And the back-feeding teeth are indented before and after the falling of the needle plate, and the forward-feeding teeth are cyclically moved in an oval path by a transmission mechanism. It is characterized in that it includes: a tooth feeding assembly is provided with forward and backward feeding teeth; a main shaft is provided with a main part of the table part to rotate in one direction; a motion conversion mechanism converts the one-way rotation of the shaft into a predetermined angle The reciprocating movement within the range. The front and rear main shaft components are converted into a reciprocating motion within a predetermined angle range by the single rotation movement of the driving shaft with the motion conversion mechanism. A vertical transmission shaft component moves the single direction of the active shaft with the motion conversion mechanism. The movement is converted into a reciprocating motion within a predetermined angle range, and the moving tooth assembly moves up and down during the reciprocation; a fixed movement direction assembly does not swing left and right when the tooth assembly moves up and down; a transmission shaft assembly after the first movement It is pivotally located at the center of the upper and lower transmission shaft components. The transmission of the upper and lower transmission shaft components is a forward movement within a predetermined angle range, and the reciprocating motion moves the forward and backward gear components; and the second forward and backward transmission shaft components. With the transmission of the spindle assembly before and after the transfer is a reciprocating motion within a predetermined angle range, the same in the reciprocating motion Transporting the front and rear drive shaft assembly front and rear tooth assembly feeding direction. [Embodiment] FIG. 1 is an external view of a cylindrical sewing machine according to the present invention, and FIGS. 2 to 4 are exploded mechanisms that are installed in the machine part before and after driving the teeth forward and backward. FIG. 5 is a combination diagram of the mechanisms of FIGS. . The following describes with reference to Figures 1 to 5 326 \ Patent Specification (Supplements) \ 92-11 \ TF924516 The cylinder feeds the pinhole and the next movement is actively driven by the machine; the direction movement rotates so that the re-transportation will follow the re-transport y- — The first issuance of the picture, showing a preferred embodiment of the invention of the 1229159 invention. An arm portion Π is provided upward at the right end of the table portion 10 to constitute the sewing machine body 12. The machine part 10 is protruded to the side by the main part 13 of the machine part 10 in a rectangular box shape, and the needle part 15 is provided on the cylindrical part 14 of the machine part 10 in a cylindrical shape. A needle bar 16 of a plurality of sewing needles 16 a is provided below the front end of the arm portion 1 1 and facing the needle plate 15. The needle bar 16 is configured to sew clothing up and down with a driving mechanism (not shown). In addition, a hook and loop device (not shown) is provided on the cylindrical portion 14 below the needle plate 15, and at the same time, the cylindrical portion 14 is provided with a forward feed tooth 17 and a rear feed tooth 18, and a forward feed tooth 17 And the rearward feeding teeth 18 appear in the grooves (not shown) for the forward and backward feeding teeth before and after the needle hole 15 of the needle plate 15, and the forward feeding teeth 17 and the rearward feeding teeth 18 are circulated in an oval path by the transmission mechanism. motion. Therefore, the cylindrical sewing material is fitted on the cylindrical portion 14 from the left side to be placed on the needle plate 1 5 and the sewing material is transferred by a predetermined amount from the forward feeding tooth 17 and the rear feeding tooth 18. At the rear, the sewing needle 16a and the hook and loop device cooperate to perform sewing to form a seam. The driving shaft 21 is provided in the main part 13 of the machine part 10, and is driven by a motor (not shown) to rotate in a single direction. The motion conversion mechanisms 2 6 and 3 1 provided on the main part 1 3 of the machine part 10 convert the unidirectional rotation motion of the driving shaft 21 to the reciprocating motion within a predetermined angle range, respectively. A forward and backward transfer lever 2 7 is set on the motion conversion mechanism 26. A forward and backward main shaft 2 3 is parallel to the driving shaft 21 and is arranged in the main part 1 3 of the machine part 10. The transfer rod links 2 8 and 2 9 are pivotally connected to the front and rear transfer rods 27 and a link block 30 is pivotally connected to the front and rear transfer rod links 2 8. In this way, the main shaft 2 3 before and after the transfer is 8 3M \ Patent Specification (Supplement) \ 92-l 1 \ TF924516 1229159 The motion conversion mechanism 2 6 converts the unidirectional rotation of the active shaft 21 into a predetermined angle range. Back and forth. A transfer upper and lower transmission shaft 3 5 is pivotally connected to the motion conversion mechanism 31 by a link 3 7, so that the transfer upper and lower transmission shaft 3 5 is reciprocated within a predetermined angle range as the drive shaft 21 is driven. The front and rear transmission shafts 3 2 B are pivoted at the center of the transmission upper and lower transmission shafts 35, and reciprocate within a predetermined angle range as the transmissions of the upper and lower transmission shafts 35 are transmitted. The front and rear main shafts 2 3 are set on the connecting rod blocks 3 0 and 7 2 at the same time. One side of the front and rear main shafts 2 3 is provided with an arc-shaped long axis 3 2 A, and a slider 6 3 is set on the arc-shaped long axis 3 2 A. On the upper side, the connecting rods 6 4 and 6 5 are pivotally connected to the slider 6 3. When the main shaft 23 is moved back and forth within a predetermined angle range, the arc-shaped long axis 3 2 A swings in a left-right arc shape, so that the sleeve Let the slider 6 3 above drive the link 64 to move in the left-right direction, and then the movement of the link 64 drives the link 65 to reciprocate within a predetermined angle range, so that the pivoting of the link 65 is moved. The front and rear transmission shafts 3 2 A are driven to reciprocate within a predetermined angle range. The forward feed teeth 17 and the rear feed teeth 1 8 are respectively locked to the plate-shaped front feeding table 41 and the rear feeding table 42, and then the front feeding table 41 and the rear feeding table 42 are placed on the feeding shaft 43. On the plane, the feeding table cover 44 is locked to the feeding shaft 43, and covers and separates the front feeding table 41 and the rear feeding table 42. The fixing blocks 45 and 46 position the conveyer shaft 43 in it, and move the conveyer shaft 43 in the up-down direction without swinging in the left-right direction. The slider 49 set on the convex shaft of the upper and lower transmission shaft 35 is provided in the groove of the conveyer shaft 43. When the upper and lower transmission shaft 35 is reciprocated within a predetermined angle range, the conveyor can be driven Axis 4 3 is the movement in the up-and-down direction, that is, the forward-moving tooth 17 and the backward-feeding tooth 18 are moved up and down 9 326 \ Patent Specification (Supplement) \ 92-ll \ TF924516 52 1229159. The front and rear transmission shafts 3 2 A are pivotally connected to the connecting rod 5 〇, and one end of the shaft is pivotally connected to the slider 51, which is placed in the groove of the connecting rod 50, and the other end of 52 passes through the feeding platform The chute of the cover 44 is pivotally connected to the front conveyor 41. When the front and rear transmission shafts 3 2 Α are reciprocated within a predetermined angle range, the shaft 5 2 can be driven before and after the chute of the conveyor table cover 4 4 The sliding in the direction further drives the front feeding table 41 and the forward moving teeth 17 to move forward and backward. The front and rear transmission shafts 3 2 B are pivotally connected to the connecting rod 5 3, and the shafts 53 and 55 are pivoted with the shaft 5 4. After the shaft 56 passes through the chute of the feeder table cover 44 and the chute of the front feeder table, Then, the connecting rod 5 5 and the rear delivery platform 4 2 are respectively pivoted. When the rear transmission shaft 3 2 B is reciprocated within a predetermined angle range, the rod 5 3, 5 5 and the shaft 5 6 can be driven to make the shaft 5 6 Slide in the chute of the feeding table cover 4 4 and the chute of the front table 41 in the forward and backward directions, and then drive the rear feeding table 42 to move the feed teeth 1 8 in the forward and backward direction. When adjusting the upper and lower positions of the slider 6 3 and the arc-shaped long axis 7 1, the distance of the left and right movement of 6 4 is adjusted accordingly. When the distance of the left and right movement of the link 6 4 is adjusted, the link 6 5 is driven. The angular range of the reciprocating motion is also adjusted accordingly, thereby adjusting the angular range of the complex motion pivoted on the connecting rod 65 before and after the transmission shaft 3 2 A. As described above, by moving the front and rear transmission shafts 3 2 A, the teeth are moved before the movement. 17 further adjusts its feed amount, whereby the differential ratio between the forward moving tooth 17 and the rear moving tooth 18 can be adjusted. The operation of the above-mentioned cylindrical sewing machine will be described below. When the driving shaft 2 1 set in the main section 1 3 of the machine section 10 is driven to make the sewing machine move, the needle bar 16 and the hook and loop device also move along with it, and the unidirectional rotation movement of the active 21 can be The motion conversion mechanism 2 6 is converted into the prescribed 326 \ Patent Specification (Supplements) \ 92-ll \ TF924516 10 axis table movements 5 consecutive 41 forward and backward movement and the rod away from the reciprocating rotary axis within a range of 1229159 degrees, By this, the front and rear main shafts 23, which are transmitted in the main section 1 3 of the machine section 10, are caused to reciprocate in a predetermined angular range. The front and rear main shafts 2 3 of the transfer front and rear drive shafts 3 3 A through the slider 6 3 and the connecting rods 6 4 and 6 5 extend from the main portion 1 3 of the machine portion 10 to the cylindrical portion 1 4 as The reciprocating rotary motion within a predetermined angular range, and the unidirectional rotary motion of the driving shaft 21 can be converted into a reciprocating rotary motion within a predetermined angular range by the motion conversion mechanism 31, and is driven by the connecting rod 3 7 to the The main part 1 3 extends to the cylindrical upper part 14 to transfer the upper and lower transmission shafts 35, so that the upper and lower transmission shafts 35 are reciprocated in a predetermined angular range. Since the front and rear transmission shafts 3 2 B are pivoted to the transfer At the center of the upper and lower transmission shafts 35, when the upper and lower transmission shafts 35 are reciprocating in a specified angular range, the reciprocating rotations in the specified angles are also followed by the reciprocating rotating shafts 3 2 B. Upper and lower transmission shafts 3 5 and 3 and 2 A and 3 2 B before and after the transmission, respectively, by the relevant transmission mechanism (such as the slider 4 9, 5 and the connecting rod 5 0, 5 3, 5 5, shaft 5 2, 5 4 , 5 6), respectively, can move the conveyer shaft 43 in the up and down direction, and the forward transfer table 4 1 and the rear transfer table 4 2 forward and backward directions, so that the movement can constitute the forward transfer tooth 17 and the rear transfer tooth 1 8 Cycling in an elliptical path, thereby synchronizing the movement of the sewing needle 16 a and the hook and loop device, the cylindrical sewing product nested in the cylindrical cylindrical portion 14 can be moved forward by the teeth 17 and backward The teeth 18 are moved to the rear by a predetermined amount for sewing. As described above, the unidirectional rotation of the driving shaft 21 and the driving shaft 21 is converted into a motion conversion mechanism 2 6 and 3 1 that are suitable for reciprocating rotary motion within a predetermined angle range of the action of the forward feeding tooth 17 and the rearward feeding tooth 18. All are placed in 11 326 \ Patent Specification (Supplements) \ 92-ll \ TF924516 1229159 Main section 1 3 of the machine section 10, and at the same time within the specified angle range transformed by the motion transformation mechanism 2 6, 31 The reciprocating rotary motion is transmitted to the forward and backward transmission teeth 17 and the rearward transmission teeth 1 8 in the up and down direction transmission mechanism and the up and down transmission shafts of the forward and backward direction transmission mechanism 3 5. The forward and backward transmission shafts 3 2 A, 3 2 Β, which are provided by the machine section 1 The main part 1 of 0 extends to the cylindrical part 14. Therefore, on the one hand, the driving shaft 21 can be arranged below the needle plate 15 under the most ideal position for sewing conditions. The upper and lower transmission shafts 3 and 5. Shafts 3 2 A and 3 2 B become the power transmission shafts for transmitting forward feed teeth 17 and backward feed teeth 18. This arrangement has more freedom, so the upper and lower drive shafts 3 5 and the front and rear drive shafts 3 2 A, 3 2 B and transfer drive mechanism do not need to be equipped with special arm with large eccentricity , It can be stored in the cylindrical portion 14 to be as compact and small as possible, and the minimum diameter of the cylindrical sewing product to be sewn into the cylindrical portion 14 can be reduced, and the cylindrical sewing machine can be significantly enlarged. Applicable range of sewable tubular sewing products. As the material of the sewing material is different, it is necessary to adjust the differential amount of the front feed tooth 17 and the rear feed tooth 18, and the upper and lower positions of the arc-shaped long axis 71 of the slider 63 and the front and rear main shafts 23 of the feed can be adjusted. For example, when the differential between the forward feed tooth 17 and the rear feed tooth 18 is increased, adjusting the position of the slider 6 3 slightly above the arc-shaped long axis 7 1 can reduce the front and rear transmission shafts 3 2 A The angular range of the reciprocating motion further reduces the amount of feed of the forward feed tooth 17, thereby increasing the differential ratio of the forward feed tooth 17 and the rear feed tooth 18. On the contrary, the differential ratio between the forward feed tooth 17 and the rear feed tooth 18 can be reduced. The purpose of the present invention is to use a transmission structure of a cylinder-shaped sewing machine for the transmission teeth. The driving shaft is arranged with respect to the needle plate and the sewing conditions are optimal. 12 326 \ Patent Specification (Supplement) \ 92-ll \ TF924516 1229159 Below the position, the upper and lower transmission shafts, the front and rear transmission shafts, and the transmission transmission mechanism do not need to be equipped with special arms with large eccentricity, etc., and they can be stored in the cylindrical portion to be as compact and small as possible to make the arrangement. It is most suitable for the positional relationship with the best sewing conditions. Another object of the present invention is to provide an adjusting mechanism capable of adjusting the differential ratio of the front and rear feed teeth, and adjust the individual transfer strokes of the front and back feed teeth to be suitable for sewing different fabrics. Although the present invention has been described above with reference to preferred specific examples and exemplary drawings, it should not be construed as limiting. Those skilled in the art can make various modifications, omissions, and changes to their forms and specific examples without departing from the scope of the present invention. [Brief description of the drawings] FIG. 1 is an external view of a cylindrical sewing machine according to the present invention; FIG. 2 is an exploded view of a mechanism provided in the machine part for driving the front and rear feed teeth of the present invention (1); The exploded view of the mechanism provided in the machine part before and after the tooth is driven by the present invention (2); FIG. 4 is the exploded view of the mechanism provided in the machine part when the tooth is moved before and after the drive (3); and FIG. 5 is a mechanism combination diagram of FIGS. 2 to 4. [Explanation of component symbols] 10 ........ machine part 11 ........ arm part 12 ........ sewing machine body 13 326 \ Patent Specification (Supplement) \ 92-ll \ TF924516 1229159 13 ........ Main part 14 ........ Cylinder part 15 ........ Needle plate 16 ........ Needle Rod 16a ....... Sewing needle 17 ........ Forward feed tooth 18 ........ Backward feed tooth 2 1 ........ Drive shaft 23. ....... Fore and aft main shaft 26 ........ Motion conversion mechanism 27 ........ Forward and backward feed lever 28 ........ Forward and backward feed lever link 29. ....... Forward and backward transfer lever link 30 ........ Link block 3 1 ........ Motion conversion mechanism 32 A ....... Forward and backward drive shaft 3 2 B ....... Transferring front and rear drive shafts 35 ........ Upper and lower drive shafts 37 ........ Connecting rod 4 1 ........ Front feed Table 42 ........ Rear feeder table 43 ........ Feeder shaft 44 ........ Feeder cover 45 ........ Fixing block 14
326\專利說明書(補件)\92-ll\TF924516 1229159 46........固定塊 4 9........滑塊 50........連桿 5 1........滑塊 5 2........軸 53........連桿 5 4........軸 55........連桿 5 6........軸 63,.......滑座 64 ........連桿 65 ........連桿 7 1........弧狀長軸 72........連桿塊 326\專利說明書(補件)\92-l 1\TF924516326 \ Patent Specification (Supplement) \ 92-ll \ TF924516 1229159 46 ........ Fix Block 4 9 ........ Slider 50 ........ Link 5 1 ........ Slider 5 2 ........ Shaft 53 ........ Link 5 4 ........ Shaft 55 ..... ... connecting rod 5 6 ........ shaft 63, ....... slide 64 ........ connecting rod 65 ........ connecting rod 7 1 ........ arc-shaped long axis 72 ........ link block 326 \ Patent Specification (Supplement) \ 92-l 1 \ TF924516