A7 B7 五、發明說明（1) <發明的所屬技術領域> 本發明係關於一種縫紉機的控制裝置，特別是，依據 記憶於記憶裝置中作為χγ座標值之縫製型態資料，使用 在支撐被缝製物之布押與相對的使缝紉機頭部移動之自動 縫紉機中’切斷布側上線及下'線之際可以說是最適當。 <習知的技術> $ 在圖1至圖4所示自動縫紉機中，如圖1所示，依 據記憶於記憶t置（省略圖示）作為χ — γ座標值之缝製 型態資料來控制X — Y駆動裝置，使由上押1及上押2所 形成之被縫製物支撐用布押，與缝紉機頭部3相對的移動 。在該自動縫紉機中之X — γ驅動裝置係由安裝於縫紉機 床5之内部之X軸脈衝馬達6與Y軸脈衝馬達7所成，依 據此些脈衝馬達6、7對於針棒8X — Y驅動位置於作業 台4上之上押1及下押2。 該自動縫紉機具有落針於線轴之下線導出部與中鍋 前端之間位置之半旋轉鍋，另外設置於該自動缝紉機之線 切斷裝置’係如圖2、囷4所示，由向前待機手紡線部9 b之移動刀口 9，與該移動刀口共同切斷布側上線與下線 之固定刀口 1 〇所構成。 前述移動刀口具有線處理部9 a、手紡線部9 b及 線切斷刀部9 c (在稱作眼球之孔的前後形成刃部經 由多少個連桿13嵌合缝妨機上轴之旋轉於移動刀口9基 部之孔9A上，並傳達至支軸（未圊示），藉此移動刀口 9以前述支轴為中心作往復運動。 本纸張尺度適用尹國國家標準（CNS)Al規格（2]0 X 297公坌） (請先閱讀背面之注意事項再填寫本-S) --丨丨---1訂--------- 經濟部智慧財產局員工消費合作社印製 4 43655 0 A7 — _ B7 五、發明說明（2 ) 前述固定刀口 1 ο位置於移動刀口 9之上側，先端 之線切斷刃部位置於落針位置之稍前面， 在半迴轉鍋之鍋1 4之上側固定鍋上彈簧1 1，在 以其刃之落針位置為中心之中心部，形成作成特殊形狀之 線控制用之孔1 2。在圖2中，1 5為使半迴轉鍋旋轉之 鋼軸’ 16為線軸箱，16a是為了卡止線轴箱16旋，轉 之角（h 〇 r η)。 圖3所示為在如此之自動缝紉機中，針端之動作與 各信號之關係之例。在圖3中（1)表示針端移動之曲線 ’具有略正弦波之軌跡，上死點為上轴角度為〇的時候。 另外，（2)表示針板的位置，（3)為傳送χ — Υ之動作區 間。在缝紉機的上轴，安裝發信上位置信號（4)表示上 軸角度5 0之上位置感側器（省略圏示），與發信下位置 信號表示上轴角度13 5之下位置感側器（省略围示）， Χ — Υ運送之驅動係藉此些感侧器之信號，使針在由針板 上升的時候，藉由中央處理裝置（CPU)來控制。 如此在習知之自動縫紉機中，藉線切斷裝置之布側 上線與下線之切斷，係依照如圖4所示來進行。 亦即移動刀口由如圖4 ( 1 )所示待機狀態’往動 如圖4 (2)、圊4 (3)所示，藉移動刀口 9之往動， 移動刀口 9之線處理部先端9 a進入下線2 4及布側上線 2 2之環輪間，更進一步進入上線2 2之環輪間進行處理 動作。上線22引入鍋，如®4 移動刀口9之處理 部先端9a，可以確實的侵入上線22之環輪間内。其次 本紙張尺度適用中國國家標準（CNShY1覘格（210 X 297公S ) <請先閱讀背面之注意事項再填寫本!) 裝------！--訂- ------- I線. 絰濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 4 3 65 5 0 a? B7 五、發明說明（3) ，如圖4 ( 5 )所示，移動刀口 9再前進連上已處理布側 之上線2 2與下線2 4超越移動刀口 9之處理部外周，並 侵入手紡線部9b »其後，如圖4 (6)所示，移動刀口 9開始複動，在連布側之上線22、下線24之順序捕捉 手紡線部9 b，上線2 2藉天''秤（省略圈示）拉上時，如 圏4 (7)所示，上線22如捲上移動刀口 9支撐。而，且 ，下線24拉出於移動刀口9，並拉出其必要量。此時， 拉出下線2 4之速度過快斜角多餘的旋轉（空轉），為了 不使下次開始缝製時帶來不良影響，控制移動刀口9之復 動速度*最後如圖4 (8)所示，藉移動刀口9更進一步 之復動動作，在線切斷刃部9 c與固定刀口 1 〇之卡合時 ，進行布側上線2 2、下線2 4之切斷工作。 習知，在上述之自動缝紉機中，由於針在針板之針 孔1 7之中心0作上下運動，因此線處理部先端9 a為了 捕捉針線2 2，移動刀口9之刃部9 c之移動軌跡A，因 形成如前述中心〇之右側，而發生如其次之問題。亦即， 線切斷前之送布方向由圖5右往左進行的時候，由其送布 ，切斷對象線（布側針線22，下線24)藉移動刀口9 之刃部9 c之移動軌跡A靠近偏離方向（圊5之左側）， 捕捉於手紡線部9 b之切斷對象線2 0如圖5虛線所示由 移動刀口9之刃部中心9 c脫離。 刃部9 c係如前述所示作成球狀，在與前述移動軌 跡A—致之刃部9 c之中心附近，刃部9 c與固定刀口 1 0間形成確實的卡合，但是，在由中心部偏離位置之刃部 本纸張尺度適用中國國家標湛（CNS)A-l規格 (2]〇 X 297公穿） ----Γ.----111 « -Hi----^-------- (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 4365 5 0 Δ„ A/ - B7 五、發明說明（4 ) 9 c與固定刀口 1 〇之卡合’因固定刀口 1 〇之傾斜與移 動刀口球面部和刃部之異心等之散亂不齊而不確實，如上 所述切斷對象線2 0在由刃部9 c中心偏離時，會發生切 斷不良之現象》 為了解決如此之問題點’'申請者在形成縫製線切斷 前之最終運針後，如圈6所示，藉移動刀口 9在線切斷時 對於針板之針孔17之中心〇，使切斷對象線2〇位置於 刃部9 c之移動執跡A上附近，驅動X — γ驅動裝置（省 略圖示）不形成缝製而僅傳送布，作所謂空送之發明目前 已向日本特許聽提出申請（本發明申請時未公開 具體說明的話’在前出圊3中，（6)為在上軸角度 1 3 5度之下位置變成ON之線切斷凸輪信號*當該線切 斷凸輪信號（6)變成ON之後，移動刀α 9開始動作， 上軸角度在約3 0 0度時終止移動刀口9之處理，在上轴 角度5 0度則終止一連之動作。然而，線切斷之際，鏠初 機上拍之速度藉停止之數針前減速，在線切斷凸輪信號（ 6)變成ON的時候’缝紉機的旋轉速變成約2 〇 〇 Γ ρ in。從而’在從最终送布後之上轴角度1 3 5度之線切斯 凸輪信號（6)開始，到移動刀口處理终了之上軸角度3 00度為止之1 65度’其所需時間約1 40微秒（ms )。 在此’ CPU在檢出上軸角度1 3 5度之下位置信 號（5)之線切斷凸輪信號（6)為ON時，同時設置動作 時間’其時間在經過一定時間（約1 4 0 m s )後，將被 本紙張尺度適用中國國家標準（CNS)A'l規格（21ϋ X 297公餐） ----!丨*11'裝！！丨訂- ------•線 (請先閱讀背面之注意事項再填寫本賀) r~- r— r~- r— 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（5 ) 缝製物支撐用布押（上押1及下押2)做χ_γ相對驅動 之空送。該空送是將切斷對象線2〇對針孔17之中心〇 使其靠近移動刀口刃部9 c之移動軌跡八側（第4象線側 )° 在該空送中’上押1與卡押2之運送方向及運送量 ’係藉最終之運針資料或布押之相對驅動資料，以C p u 來演算決定。也就是，在圖7中所示付上箭頭之a、b、 c，依據縫製資料所決定之最终針布押之相對堪動向量3 ，在由針孔中心〇之最佳線切斷點（通常為刀部g c之移 動軌跡A上或其附近）之向量b，與空送向量c及針孔1 7之半徑R間之關係中，如圖7 ( 1 )所示，最終針斜角 在針孔之半徑R以下的場合時，依其次公式演算。 【公式1】 c = b 一 3. ,.··(1) 另外，如圖7 (2)所示’最终針斜角在針孔半徑 R以上的場合時，則依其次之公式演算。 【公式2】A7 B7 V. Description of the invention (1) < Technical field of invention > The present invention relates to a control device for a sewing machine, and in particular, it is based on sewing pattern data stored as a χγ coordinate value stored in a memory device and used for supporting It can be said that it is most suitable when the cloth to be sewn is opposed to the automatic cutting machine which moves the sewing machine head to 'cut the upper side and lower side of the cloth side'. < Known technology > $ In the automatic sewing machine shown in Figs. 1 to 4, as shown in Fig. 1, the sewing pattern data stored in the memory t (not shown) as the χ-γ coordinate value is shown in Fig. 1. The X-Y moving device is controlled to move the cloth for supporting the sewing object formed by the upper pusher 1 and the upper pusher 2 relative to the sewing machine head 3. The X-γ driving device in the automatic sewing machine is composed of an X-axis pulse motor 6 and a Y-axis pulse motor 7 installed inside the sewing machine 5. According to these pulse motors 6, 7 are driven to the needle bar 8X-Y. Positioned on the work platform 4 above and below the bet 1 and 2. The automatic sewing machine has a semi-rotating pot with the needle falling under the position between the thread leading part under the spool and the front end of the middle pot. In addition, the thread cutting device of the automatic sewing machine is shown in Figs. The moving knife edge 9 of the standby hand-spinning thread portion 9 b is constituted by cutting the fixed knife edge 10 of the upper and lower threads on the cloth side together with the moving knife edge. The moving knife edge includes a thread processing portion 9 a, a hand-spun thread portion 9 b, and a thread cutting blade portion 9 c (how many links 13 are formed at the front and rear of the blade portion called the eyeball hole to fit the upper shaft of the sewing machine). Rotate on the hole 9A of the base of the moving knife edge 9 and convey it to the supporting shaft (not shown), so that the moving knife edge 9 reciprocates around the aforementioned supporting shaft. This paper size applies Yin National Standard (CNS) Al Specifications (2) 0 X 297 Gong) (Please read the notes on the back before filling out this -S)-丨 丨 --- 1 Order --------- Employee Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Printing 4 43655 0 A7 — _ B7 V. Description of the invention (2) The aforementioned fixed knife edge 1 ο is located above the moving knife edge 9 and the cutting edge of the leading edge of the thread is placed slightly in front of the needle drop position. The pot spring 4 is fixed on the upper side of the pot 14, and a hole 12 for forming a special shape is formed at the center of the center of the needle drop position of the blade. In FIG. 2, 15 is a half-turn The steel shaft '16 of the pot rotation is a bobbin box, and 16a is to lock the bobbin box 16 rotation, and the angle of rotation (h 〇 r η). An example of the relationship between the movement of the needle end and each signal in the automatic sewing machine. In Fig. 3 (1), the curve of the movement of the needle end has a trajectory with a slightly sine wave, and the top dead point is when the angle of the upper axis is 0. In addition, (2) indicates the position of the needle plate, (3) is the operation interval for transmitting χ — Υ. On the upper shaft of the sewing machine, a position signal is sent on the upper shaft of the sewing machine (4) The position sensor is indicated by the upper shaft angle 50 (Omit the indication), and the position signal below the signal indicates the position sensor under the upper axis angle of 13 5 (omission is omitted). The drive of X-Υ transport uses the signals of these sensor to make the needle When the needle plate is raised, it is controlled by a central processing unit (CPU). Thus, in the conventional automatic sewing machine, the cutting of the upper and lower threads on the cloth side of the thread cutting device is performed as shown in FIG. 4. That is, the moving knife edge is in a standby state as shown in FIG. 4 (1). The movement is shown in FIGS. 4 (2) and 圊 4 (3). By moving the moving knife edge 9, the line processing part of the moving knife edge 9 is at the tip 9. a Enter the ring wheel room of the lower line 2 4 and the cloth line upper line 2 2 and further enter the ring wheel room of the upper line 2 2 Processing action. Introduce the pot to the upper line 22, such as the leading edge 9a of the processing part of the ®4 mobile knife edge 9, which can surely penetrate into the ring wheel of the upper line 22. Secondly, this paper size applies the Chinese national standard (CNShY1 觇 Grid (210 X 297mm S ) < Please read the precautions on the back before filling in this!) Packing ------!-Order ----------- Line I. Ministry of Economic Affairs, Intellectual Property Bureau, Employee Consumption Cooperative, Printing Ministry of Economy Printed by the Intellectual Property Bureau employee consumer cooperative 4 3 65 5 0 a? B7 V. Description of the invention (3), as shown in Fig. 4 (5), move the knife edge 9 forward and connect to the processed cloth side line 2 2 and offline 2 4 Beyond the outer periphery of the processing part of the moving knife edge 9 and invaded the hand-spinning part 9b »After that, as shown in Figure 4 (6), the moving knife edge 9 started to move again, and the order of the upper line 22 and the lower line 24 on the continuous fabric side When the hand-spun yarn portion 9 b is captured and the upper thread 2 2 is drawn on the scale (not shown), as shown in 圏 4 (7), the upper thread 22 is supported by the moving knife edge 9 on the roll. And, the lower thread 24 is pulled out of the moving knife edge 9 and is pulled out by a necessary amount. At this time, the speed of pulling the lower thread 2 4 is too fast, and the unnecessary rotation (idling) of the oblique angle is excessive. In order not to adversely affect the next sewing start, control the repetitive speed of the moving knife edge 9 * Finally, as shown in Figure 4 (8 As shown in the figure, by moving the knife edge 9 a further action, when the online cutting edge portion 9 c is engaged with the fixed knife edge 10, the cloth-side upper line 2 2 and the lower line 2 4 are cut. Conventionally, in the above-mentioned automatic sewing machine, since the needle moves up and down at the center 0 of the needle hole 17 of the needle plate, the tip of the thread processing portion 9 a moves the blade portion 9 c of the knife edge 9 to capture the needle thread 2 2 The trajectory A is formed to the right of the center 0 as described above, and the next problem occurs. That is, when the feeding direction before the thread is cut from right to left in FIG. 5, the cloth is fed by this, and the cutting object thread (cloth side needle thread 22, lower thread 24) is moved by moving the blade portion 9 c of the knife edge 9 Trajectory A is close to the deviation direction (left side of ， 5), and the cutting target line 20 captured by the hand-spinning thread portion 9 b is disengaged by the center 9 c of the blade portion of the moving knife edge 9 as shown by the dotted line in FIG. 5. The blade portion 9 c is spherical as shown above. Near the center of the blade portion 9 c caused by the movement trajectory A, the blade portion 9 c and the fixed knife edge 10 form a secure engagement. The blade of the center part is out of position. The size of this paper is applicable to Chinese National Standard Zhan (CNS) Al specification (2) 〇X 297. ---- Γ .---- 111 «-Hi ---- ^- ------- (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4365 5 0 Δ „A /-B7 V. Description of the invention (4) 9 c and fixed The engagement of the knife edge 1 〇 is not sure because the inclination of the fixed knife edge 10 and the concentricity of the moving knife edge ball surface and the concentricity of the blade are not uniform. As described above, the cutting object line 2 0 is at the center of the blade 9 c. When the deviation occurs, a poor cutting phenomenon will occur. "To solve such a problem," the applicant will move the knife edge 9 to cut the needle plate when moving the knife edge 9 to cut the line. The center of the pinhole 17 is 〇, so that the cutting target line 20 is positioned near the moving track A of the blade portion 9 c, and the X-γ driving device is driven (not shown) ) The sewing is not carried out but only the cloth is conveyed. The invention of so-called air-feeding has been applied to the Japanese franchise. (If it is not disclosed at the time of the application of the invention, the specific description is given in (3), (6) is the angle on the upper axis. 1 3 The line below the 5 ° position turns ON the cut-off cam signal. * When the line cut-off cam signal (6) turns ON, the moving knife α 9 starts to move, and the moving knife edge ends when the upper axis angle is about 300 °. The processing of 9 will terminate the continuous movement when the upper axis angle is 50 degrees. However, when the thread is cut off, the speed of the initial shot will be decelerated by a few stitches before stopping, and the online cut cam signal (6) will turn ON. At the time of 'the rotation speed of the sewing machine becomes about 〇〇Γρ in. Therefore,' the Chess cam signal (6) from the upper axis angle of 13.5 degrees after the final feeding is started, and the processing of the moving knife edge is completed. 1 65 degrees up to the axis angle of 300 degrees 'It takes about 1 40 microseconds (ms). Here' the CPU cuts off the cam by detecting the line of the position signal (5) below the upper axis angle of 1 3 5 degrees When the signal (6) is ON, set the action time at the same time, and its time will pass after a certain time (about 140 ms) , This paper size will apply Chinese National Standard (CNS) A'l specifications (21ϋ X 297 meals) ----! 丨 * 11'pack !! 丨 Order ------- • Line (please first Read the notes on the back and fill in this congratulation) r ~-r— r ~-r— printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (5) Sewing fabric support (upper 1) And bet 2) do the air drive with χ_γ relative drive. This air drive is to cut the cutting object line 20 to the center of the pinhole 17 and bring it close to the eight sides of the moving trajectory of the moving blade edge 9 c (the fourth image line Side) ° In the air delivery, the 'transport direction and volume of the top bet 1 and the second bet 2' are calculated based on the final needle data or the relative driving data of the bet, calculated by C pu. That is, as shown in FIG. 7, arrows a, b, and c are attached, and according to the relative kinematic vector 3 of the final needle deployment determined by the sewing data, at the optimal line cut-off point (0) from the center of the pinhole ( Usually, the vector b on or near the movement trajectory A of the knife part gc), and the feed vector c and the radius R of the pinhole 17 are shown in Fig. 7 (1). When the radius of the pinhole is less than R, it is calculated according to the following formula. [Formula 1] c = b-3., .. (1) In addition, as shown in Fig. 7 (2), when the final needle oblique angle is greater than the pinhole radius R, it is calculated according to the next formula. [Formula 2]
依據如此之演算，由於切斷對象線2 〇靠近前述 移動軌跡Α上或其附近之最佳線切斷點b，應切斷之 線變成連結該點b與刃部9 c之線，最理想的是略沿 著連接其兩點b、9 c與手紡線部9 b之最下點9 b_ (圖β )之線的位置，如習知不會大大的脫離刃部9 本紙張尺度適用中國國家標準（CNSM.1規格（wo X 297公f > -------------裝----111 — 訂 --------線 <請先閲讀背面之注意事項再填寫本-1) Α7 厶 3 65 5 Ο _______Β7________ 五、發明說明（6 ) C，由於在刃部9 C與固定刀口 1 〇之卡合時，切斷 對象線係位置於刃部9 c之中心附近，所以形成可確 實的切斷線’另外’由於線經路趨近於平面上直線， 所以布裏之線殘餘量變短。 <發明欲解決之課題> 、 但是，變更不同粗細之線與針時，則必須一面變 更針孔1 7之半徑R之不同針板，一面隨之改變前述 移動軌跡A以調節移動刀口，在上述之方法中，由於 針孔17之半徑R或最佳線切斷點之向量b之輸入是 固定’為了形成一定之空送量，切斷對象線無法空送 布至前述移動軌跡A上或其附近之最佳線切斷點之位 置’在針孔之大小變化很大的時候，就會有所謂切斷 不良之問題點發生。 本發明之課題是為了解決前述習知之問題點，因 應針孔之大小與線之粗細’在適當之最佳線切斷點相 對移動線，使其確實的切斷線。 <解決課題之手段> 本發明為了解決前述之課題，包括有以下之裝置 .記憶裝置，係記憶運針資料；χ 一 γ驅動裝置，係 依照記憶於該記憶裝置之運針資料’使支撐被縫製物 之布押與縫紉機頭部相對的移動；線切斷裝置，係具 有固疋刀口、及卡合固定刀口之刃部，與移動所定移 動軌跡上之移動刀口’在移動移動刀口時藉捕捉通過 針板之針孔之線與固定刀口及前述刀部之卡合切断線 --1 I ^---I-----裝------丨_訂---------線 (請先閱讀背面之注意事項再填寫本·!> 經濟部智慧財產局員工消費合作社印製According to such calculations, since the cutting target line 20 is close to the optimal line cutting point b on or near the aforementioned moving trajectory A, the line to be cut becomes the line connecting the point b and the blade portion 9 c. The position is slightly along the line connecting the two points b, 9 c and the bottom point 9 b_ (figure β) of the hand-spun thread portion 9 b. China National Standard (CNSM.1 specifications (wo X 297 male f > ------------- installation ---- 111 — order -------- line < please first Read the notes on the back side and fill in this book-1) Α7 厶 3 65 5 〇 _______ Β7 ________ 5. Description of the Invention (6) C, because when the blade 9 C is engaged with the fixed blade 1 〇, the position of the cutting object line is at Near the center of the blade portion 9c, a reliable cutting line is formed. In addition, since the thread path approaches a straight line on the plane, the remaining amount of the brie line becomes shorter. ≪ Problems to be Solved by the Invention > When changing threads and needles of different thicknesses, you must change the different needle plates with a radius R of the pinhole 17 while changing the movement trajectory A to adjust the moving knife edge. In the method described above, because the input of the radius R of the pinhole 17 or the vector b of the optimal line cut-off point is fixed, in order to form a certain amount of empty feed, the cutting target line cannot be fed to the aforementioned moving track A or When the position of the optimal thread cutting point near it is very large, the problem of so-called cutting failure occurs. The problem of the present invention is to solve the conventional problem, The size of the hole and the thickness of the line 'moves the line relatively at the appropriate optimal line cutting point to make the cutting line sure. ≪ Means for Solving the Problem > The present invention includes the following devices in order to solve the aforementioned problems. .Memory device, which stores the needle transport data; χ-γ drive device, which moves the cloth supporting the sewing object relative to the head of the sewing machine according to the needle transport data stored in the memory device; the thread cutting device, which has a fixed position疋 The knife edge, and the blade part that engages the fixed knife edge, and the moving knife edge on a predetermined movement trajectory. When the moving knife edge is moved, the thread passing through the pinhole of the needle plate and the fixed knife edge and the card of the aforementioned knife edge are captured. Closing the cutting line--1 I ^ --- I ----- installation ------ 丨 _order --------- line (Please read the precautions on the back before filling in this! > Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs
A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（7 ) 者；線切斷控制裝置，係驅動前述X一 Y驅動裝置， 使其在前述移動刀口之刃部與固定刀口卡合前，於前 述移動刀口之刃部之移動軌跡侧靠近切斷對象線；其 特徵在於其更包含有：選擇裝置，係選擇由前述針孔 的大小或在接近前述刃部之‘動軌跡關於特定位置之 至小一方來的多數情報；設定裝置，係依據該選擇裝， 置所選擇之針孔的大小或特定位置情報、及線切斷前 之最終運針資料，設定前述X — Y驅動裝置之驅動量 ’使切斷對象線在前述移動刀口之刃部與固定刀口之 卡何時，接近刃部之移動軌跡之位置。 前述設定裝置係設定X—Y驅動裝置之驅動量使 其切斷對象線接近於刃部之中心部之移動軌跡的位置 者。 <發明之實施型態> 參照以下圖面，詳細說明本發明之實施型態。 囷8表示本實施型態之控制裝置。在該控制裝置 中’接續有為了進行控制之CPU30、記憶系統程 式之讀取記憶裝置（ROM) 3 2、作業用之資料記 愧裝置（RAM) 34、與為了記憶縫製形式資料之 由使用者可以輸入之不揮發性ROM之E PROM3 6 ° 另外*在前述CPU30，為了驅動縫紉機馬達 主動輪42係藉由縫紉機馬達界面（I/F)40接 續’另外，為了驅動X軸脈衝馬達6及Y軸脈衝馬達 -1111 l· ---I--' 農------丨丨訂---------線 (請先閱讀背面之注意事項再填寫本-1) 本紙張尺度適用尹國國家標聿（CNS)A-l規格（2m X 297 > 10 A7 43655 0 _____B7___ - 五、發明說明（8 ) 7之脈衝馬達主動輪4 6係藉由脈衝馬達界面（1/ F) 44接續。更進一步，於前述CPU30，依據 本發明為了選擇針孔半徑之傾斜（D I P )開關5 2 ，係藉由輸入界面（I/F)接讀。 藉構成前述傾斜開關5 έ之兩個開關D I P SW 1與01?5界2之01^、0卩卩狀態之設定，針孔， 之半徑R與針孔中心〇之最佳線切斷點之向量b，就 如圖9所示被選擇。在圊9中，最佳線切斷點之向量 b之單位為m m。 其他的構造及基本之動作，由於與前例同樣參照 圖1至圖7之說明，因而省略說明。 .以下，針對本發明之特有的動作加以說明》 在縫製之際，配合缝製條件，藉前述傾斜開關5 2選擇針孔半徑R與最佳線切斷點b之組合，如此， 藉前述CPU使用所選擇之R與b，進行前述（1 ) 及（2 )式之演算，求得空送量c » 從而，在線切斷前夕，藉依所選擇輸入之針孔半 徑R所演算之空送量c之空送，由於切斷對象線2 〇 必定靠近最佳線切斷點b、也就是前述刃部9 c之移 動經路A上或其附近，因而固定刀口 1 〇與刃部9 c 卡合時，切斷對象線2 0變成位於刃部9 c之略中心 之位置，也就不會發生切斷不良之現象。 在本實施型態中，針孔的大小被做成針扎半徑尺 ’選擇該針孔半徑R之選擇裝置，係由兩個之傾斜開 本紙張尺度適用中國國家標準（CNS)A丨規格（2Ιϋ X 297公餐） (請先閬讀背面之注意事項再填寫本頁) ------- —訂· I I t -----1 經濟郤智慧財產局員工消費合作杜印製 11 4 3 65 5 Δ7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（9 ) 關所構成，使其以針孔之半徑R與最佳線切斷點之向 量b之一對來選擇，而選擇裝置之構成與可以選擇之 針孔半徑R之種類並不限定於此。例如，僅以一個傾 斜開關可以作為兩階段之切換，或一面劃分針孔半徑 R選擇用之傾斜開關與最佳威切斷點之向量b選擇用 之傾斜開關，或者，僅改變針孔半徑R，而不改變最 佳線切斷點之向量b亦可》 或者，使用可以直接設定數值之迴轉式開關等來 代替傾斜開關’亦可將最佳線切斷點之向量b之x座 標及Y座標以直接數值設定》 或者，不是如傾斜開關與迴轉式開關之硬體開關 ’亦可選擇設定將如EPROM之記憶體接續於CP U ’或藉鍵盤操作輸入記憶體。 <發明的效果> 依據本發明可以將切斷對向線之線切斷時之位置f設 定在配合針孔的大小之最適當的位置。從而，即使藉針和 線的粗細在不同針板上變更針孔的大小，藉選擇針孔的大 小等，在個針板達成為了告進最適當線之空送，因而可以 防止線的切斷不良，並確實的將線切斷。 〈圖面的簡單說明〉 第一圖為表示習知之自動縫紉機之全體構造透視 圖。 第二圖為表示習知之線切斷裝置之構造，欠缺切掉一 部之透視囷。 本紙張尺度適用中國國家標準（CIS'S〉/U規烙（2】tM 29；·么、S ) I---rllllllt * - I I I I I 1 I ^ « — — — III— — <請先閱讀背面之注意事項再填寫本1) 12 436550 Δ7 Β7 五、發明說明（m) 第三圖為表示在前述習知之自動縫紉機中，針端 之活動與各信號之關係的時間流程圖。 第四圖為說明在前述習知之線切斷裝置中，線切 斷動作之透視圓》 第五圖為相同的在習知芝線切斷裝置中，表示切 斷對象線與移動刀口部之移動軌跡之關係平面圖。 第六圓為說明申請人在最初提出申請之關連技術 中，在自動縫鉍機之線切斷時之動作之平面囷。 第七圊為說明在關於本發明之線切斷時空送資料 之平面圖β 第8圖為表示本發明之實施型態之控制裝置的全 體構造之區域圊。 第9圊為表示在關於本發明之實施型態中，所使 用以傾斜開關選擇針孔半徑與最佳線切斷點之向量關 係例之圖表。 丨丨-—丨：---- -裝·---- -訂--I I---丨線 (請先閱讀背面之注意事項再填寫本-!) 經濟部智慧財產局員工消費合作杜印製 13 本紙張尺度料料（CNS);y規格⑵◦x ) Α7 經濟部智慧財產局員工消費合作社印製 4 3 85 5 〇 Β7_ 五、發明說明（11 ) 元件標號對照 1 上押 17 針板的針孔 2 下押 18 缝紉機馬達 3 缝紉機頭部 ，、R 針孔半徑 4 作業台 2 0 切斷對象線 5 床 2 2 上線 6 X轴脈衝馬 2 4 下線 達 a 最終針之布 7 "V"轴脈衝馬 押的相對驅動向量 達 b 最佳線切斷 8 針棒 點之向量 9 移動刀口 C 空送向量 9 a 線處理部先 3 0 CPU 端 3 2 ROM 9 b 手紡線部 3 4 RAM 9 c 線切斷刃部 3 6 EPROM 10 固定刀口 5 2 D I P開關 (請先閱讀背面之注意事項再填寫本-1) 裝----tl--訂---------線 本紙張尺度適用中國國家標準（CNS)A.丨規格X 297公餐） 14A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Inventor (7); The line cut-off control device drives the aforementioned X-Y drive device to engage with the fixed blade at the blade of the moving blade. Previously, the moving trajectory side of the blade portion of the aforementioned moving knife edge approached the cutting object line; it is characterized in that it further comprises: a selection device, which is selected by the size of the aforementioned pinhole or near the 'moving trajectory of the blade portion. Most of the information from the smallest position; the setting device is based on the selected device, sets the size of the selected pinhole or specific position information, and the final needle movement data before the thread is cut, and sets the aforementioned X-Y drive device. The driving amount 'makes the cutting target line close to the position of the movement track of the blade when the cutting edge of the moving blade and the blade of the fixed blade are close. The aforementioned setting means sets the driving amount of the X-Y driving means so that the cutting target line thereof approaches the position of the movement locus of the center portion of the blade portion. < An embodiment of the invention > An embodiment of the invention will be described in detail with reference to the following drawings.囷 8 indicates a control device of this embodiment. The control device is connected to a CPU 30 for control, a read-memory device (ROM) for a memory system program 3 2, a work data shame device (RAM) 34, and a user for memorizing data of a sewing form E PROM3 of non-volatile ROM that can be entered 6 ° In addition * In the aforementioned CPU30, in order to drive the sewing machine motor drive wheel 42 is connected through the sewing machine motor interface (I / F) 40 'In addition, in order to drive the X-axis pulse motor 6 and Y Shaft Pulse Motor-1111 l · --- I-- 'Agriculture ------ 丨 丨 Order --------- line (Please read the precautions on the back before filling in this-1) This paper Standards are applicable to Yin National Standard (CNS) Al specifications (2m X 297 > 10 A7 43655 0 _____B7___-V. Description of the invention (8) 7 of the pulse motor driving wheel 4 6 series through the pulse motor interface (1 / F) 44 continued. Further, in the aforementioned CPU 30, according to the present invention, the tilt (DIP) switch 5 2 for selecting the pinhole radius is read through the input interface (I / F). Switch DIP SW 1 and 01 ~ 5 boundary 2 setting of 01 ^, 0 卩 卩, pinhole, radius R and pinhole The vector b of the optimal line cut-off point is selected as shown in Fig. 9. In 圊 9, the unit of the vector b of the optimal line cut-off point is mm. Other structures and basic operations are The previous example also refers to the description of FIG. 1 to FIG. 7, so the description is omitted. The following is a description of the unique operation of the present invention. ”When sewing, according to the sewing conditions, select the pinhole radius R and The combination of the best line cut-off point b. In this way, by using the aforementioned R and b selected by the CPU, the calculations of the above formulas (1) and (2) are performed to obtain the empty feed amount c », so that on the eve of the online cut, The air feed by the air feed amount c calculated according to the pinhole radius R selected and input, because the cutting target line 20 must be close to the optimal line cutting point b, that is, the moving path A of the aforementioned blade portion 9 c. If the fixed cutting edge 10 is engaged with the blade portion 9c, the cutting target line 20 will be located at the center of the blade portion 9c, and no cutting failure will occur. In the implementation form, the size of the pinhole is made into a needle bar radius ruler. The device is made of two papers with a slanted format. Applicable to China National Standard (CNS) A 丨 specifications (2Ιϋ X 297 meals) (Please read the precautions on the back before filling this page) ------- —Order · II t ----- 1 Printed by the Consumers ’Cooperative of the Economic and Intellectual Property Bureau Du 4 11 65 3 Δ7 B7 Printed by the Consumers’ Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs It is selected by a pair of the radius R of the pinhole and the vector b of the best line cut-off point, and the configuration of the selection device and the types of the pinhole radius R that can be selected are not limited to this. For example, only one tilt switch can be used as a two-stage switch, or a tilt switch for selecting the pinhole radius R and a vector b for the best cutoff point can be selected on one side, or only changing the pinhole radius R Or, without changing the vector b of the best line cut-off point "Or, use a rotary switch that can directly set the value instead of the tilt switch. You can also change the x coordinate and Y of the vector b of the best line cut-off point. The coordinates are set by direct numerical values. Or, instead of hardware switches such as tilt switches and rotary switches, you can also choose to set the memory such as EPROM to CP U or input the memory by keyboard operation. < Effects of the invention > According to the present invention, the position f when the line of the cutting opposing line is cut can be set to the most appropriate position for the size of the pinhole. Therefore, even if the size of the pinhole is changed on different needle boards by the thickness of the needle and the thread, and the size of the hole is selected by the needle board, the air feed for the most appropriate thread can be achieved on the needle board, so the thread can be prevented from being cut. Defective, and surely cut the line. <A brief description of the drawing> The first figure is a perspective view showing the entire structure of a conventional automatic sewing machine. The second figure shows the structure of a conventional wire cutting device, and a part of a perspective ray is cut away. This paper size applies to Chinese National Standards (CIS'S> / U Regulation (2) tM 29; · Mod, S) I --- rllllllt *-IIIII 1 I ^ «— — — III — — < Please read the back Note: Please fill in this again 1) 12 436550 Δ7 B7 V. Description of the invention (m) The third diagram is a time flow chart showing the relationship between the movement of the needle end and the signals in the conventional automatic sewing machine. The fourth figure is a perspective circle illustrating the wire cutting operation in the conventional line cutting device. The fifth figure is the same in the conventional Shiba line cutting device, which shows the movement trajectory of the cutting object line and the moving knife edge portion. Relationship plan. The sixth circle is a plane illustrating the action of the applicant when the thread of the automatic bismuth sewing machine was cut in the related technology of the initial application. The seventh block is a plan view for explaining the time-space data transmission in the cutting of the line of the present invention. Β The eighth block is an area showing the overall structure of the control device according to the embodiment of the present invention. Fig. 9 is a graph showing an example of the vector relationship between the pinhole radius and the optimal line cut-off point used by the tilt switch in the embodiment of the present invention.丨 丨 --- 丨: ---- -Install · ---- -Order --I I --- 丨 line (please read the precautions on the back before filling out this!) Cooperate with the employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Du printed 13 paper standard materials (CNS); y specifications ⑵◦x) Α7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 3 85 5 〇Β7_ V. Description of the invention (11) Component number comparison 1 Stake 17 Needle hole of the throat plate 2 Lowered 18 Sewing machine motor 3 Sewing machine head, R Pinhole radius 4 Workbench 2 0 Cutting target line 5 Bed 2 2 Up line 6 X-axis pulse horse 2 4 Down line up to a final needle cloth 7 " V " The relative drive vector of the shaft pulse horses up to b is the best thread cut vector of the 8-pin bar point 9 moving knife edge C air feed vector 9 a thread processing unit first 3 0 CPU end 3 2 ROM 9 b hand-spun thread Part 3 4 RAM 9 c Wire cutting blade part 3 6 EPROM 10 Fixed blade 5 2 DIP switch (Please read the precautions on the back before filling in this -1) Installation ---- tl--Order ------ --- The paper size of the paper is applicable to Chinese National Standard (CNS) A. 丨 Specification X 297 Meal) 14