办年EH#正替換頁 九、發明說明： I：發明所属之技術領域】 技術領域 本發明係有關於一種縫紉機。 背景技術 以往的縫紉機設有調整縫線張力的線張力調整紐，可 藉由此線張力調整鈕來對縫合處賦與適度之張力。線張力 調整鈕配置有二個對向配置之線張力調整盤，藉由線張力 調整彈簧之彈力將-方之線張力調整盤押向另—線張力調 整盤，以賦與夾於線張力調整盤間之缝線張力。 土縫切機設有二個如此之線張力調整钮。與縫線供應源 罪近設置之第1線張力調整紐與縫幼機之縫製狀況無關地 隨時縫線提供張力，㈣騎靠近設置之第2線張力調整紐 則只在縫料對縫輯料高於Ρ線張力調整紐之張 力’在縫製結綠切_線時才_對縫輯與之張例 如’請參照專利文獻1)。 ’ 此 乂弟1綠m力調整鈕對縫線賦與張力，同時以 ^張力調整祕除張力之賦與，來賦與適度之張力， =縫線切斷後自縫針之針孔伸出之縫線之長度。在此， 刀^第1線張力調整知賦與之張力，則在切斷線時因切線 使縫線自縫線供應源供應 ' 縫針之針孔伸出之縫線之長产=:在縫線切斷後自 張力調整域蚊^ 若提高第1線 ㈣紐賦與之張力，則在切斷線時因切線刀使縫線自 第094146149號申請案 101年1月11日修正替換 縫線供應源拉出之量變少，而在縫線切斷後自縫針之針孔 申出之縫線之長度會變短。自縫針之針孔伸出之縫線長度 左右縫製品質之重要要素，自縫針之針孔伸出之縫線之長 A太長則在開始縫製時會出現多餘的縫線使外觀不良，若 縫針之針孔伸出之縫線之長度太短則在開始縫製時會不 與下線進行連結而產生縫製處出現間隔。 另外，縫線在切斷後，會被擺臂(wiper)拉出被縫製物。 擺臂藉由在縫針與被縫製物間橫向移動，在橫移時卡合縫 線以將其拉出被縫製物。因此，在藉由擺臂將縫線拉出被 縫製物時，只有第1線張力調整知對縫線賦與張力。 【專利文獻】特開2002-52286號公報 【明内；J 發明概要 發明解決之問題 然而’在被縫製物為合成皮革等時，若以高速進行縫 製’則縫針會因與被縫製物間之摩擦而產生高溫，會有縫 針所刺穿之孔溶解而與之後的縫線凝固在一起的情形。 因此’以擺臂將縫線拉出被縫製物時，第i線張力調整 鈕之張力若太小，則會有縫線自縫線供應源伸出，使縫線 切斷後之自針孔伸出之縫線之長度太長之問題。反之，第】 線張力調整紐之張力若太大’則會有在切斷縫線時因切線 刀使自縫線供應源伸出之縫線量少，使縫線切斷後之自針 孔伸出之縫線之長度太短之問題。因此，第成張力調整钮 之張力調節甚為困難。 5 於疋為解決則述問題，本發明之目的傳提供一種可 令縫線切斷後自縫針之針孔伸出之縫線之長度為最適當長 度之縫紉機。 解決問題之手段 為解決則述問題，申請專利範圍第1項之發明提供一種 縫幼機，係具有：縫針，係、縫線穿過於其前端形成之針孔， 並可藉上下運動對載置於針板上之被縫製物進行縫製者； 切線裝置，係配置於前诂 、这針板下方，且在縫製結束後切斷 10 刚述縫線者u ’係，橫越前述縫針與前述被縫製物之間 而移動，且將被前述切線裝置切斷之縫線拉出前述被縫製 物者’及線張力賦與裝置，係對前述縫線賦與張力者，其 特徵在於更具有線張力控制裝置，且該線張力㈣裝置係 用以控制4線張力賦與裝置之操作，於藉前述擺臂將縫 15 線拉出前核縫製物時，對縫線賦與張力，而在前述縫線 被完全拉a前频、物時，解輯與之張力者。 20 第094146149號申請案 101年1月11日修正替換 依據申請專利範圍第1項所記之發明，線張力控制裝置 二制線張力賦與裝置之操作’於藉前述擺臂將縫線拉出前 述破縫製物時，對縫線賦與張力，而在前述縫線被完全拉 出前述被縫製物時’解除賦與之張力。藉此，只在將縫線 2時對縫線賦與張力’因此擺臂不會自縫線供應源拉出 2線’可使縫線_後縫線自縫針伸出之長度為最適之長 ^因此，不會損及被縫製物之美觀，並防止縫製處間隔 另外在將縫線自被縫製物拔出後會解除對缝線 、之張力，因此在㈣機停止時容易進行換線與穿線。 7 ff年々月if日槪/)正替換頁 ¥ °月專利範圍第2項之發明如申請專利範圍第1項之縫 刀機更匕3有·取線彈簧，係設於前述缝線在縫線供應 上’且與該縫線卡合並依據該缝線 而彈性變形者’感測器係可檢出前述取線彈菁在 存在於β取線彈簀受前述縫線之張力作用前之初期位置 者’，缝針控制裂置’係在前述擺臂橫越前述缝針與前述被 縫製物之間後’前述感測器若未檢出前述取線彈菁，則停 止前述缝針之上下運動者。 依據申請專利範圍第2項所記之發明，縫針控制裝置在 擺臂橫越縫針與被縫製物之間後，若感測器未檢測出取線 彈簀時33 ’則停止縫針之上下運動。藉此，可檢出擺臂是 否回復原位。換言之，取線彈簧若未返回初始位置，即代 表縫線上仍有張力作用，該張力之存在表示擺臂仍與縫線 卡合並自被縫製物中拔出縫線，若取線彈簧未返回原位， 則擺臂亦未返回原位。因此，可防止在擺臂尚未返回原位 時與中壓件之接觸、或與縫針之接觸造成之縫針彎折。 另外，藉由檢出取線彈簀即可判斷擺臂之狀態，因此 不需專用於檢出擺臂是否返回原位之感測器。 依據申请專利範圍第1項所記之發明，由於只在將縫線 拉出時對縫線賦與張力，因此擺臂不會自縫線供應源拉出 縫線，可使縫線切斷後縫線自缝針伸出之長度為最適之長 度。因此，不會損及被縫製物之美觀，並防止縫製處間隔 之產生。另外，在將縫線自被縫製物拔出後會解除對縫線 賦與之張力，因此在縫紉機停止時容易進行換線與穿線。 1363116 依據申請專利範圍第2項所記 臂是否回復原位，可防止在擺臂發明，藉此，可檢出擺 之接觸、或與縫針之接觸造成之縫針未=原位時與中壓件 不需=!檢出取線彈簧即可判斷擺臂之狀態，因此 "專用於檢出擺衫否返回原位之感測器。 【貧施方式】 實施本發明之最佳形態 以下參考圖面_說明本發明之_機。 10 ㈣叙第1圖帛11圖所5F ’縫㉞機1^具有透過連桿機構連 二驅動源之勒機馬額(參見第_)，並受縫城馬達ι〇 15 20Office Year EH# Positive Replacement Page IX. Description of the Invention: I: TECHNICAL FIELD OF THE INVENTION The present invention relates to a sewing machine. Background Art A conventional sewing machine is provided with a thread tension adjusting button for adjusting a thread tension, and the thread tension adjusting button can be used to impart a moderate tension to a seam. The wire tension adjusting button is provided with two oppositely arranged wire tension adjusting disks, and the wire tension adjusting plate is biased to the other wire tension adjusting plate by the elastic force of the wire tension adjusting spring to impart the wire tension adjustment Suture tension between the discs. The soil slitting machine has two such tension adjusting buttons. The first line tension adjustment button set close to the sewing thread supply source provides tension at any time regardless of the sewing condition of the sewing machine. (4) The second line tension adjustment button near the setting is only in the sewing material. The tension of the thread tension adjustment is higher than the tension of the twist line. When sewing the green cut _ line, the stitching is performed, for example, please refer to Patent Document 1). 'This younger brother 1 green m force adjustment button gives tension to the suture, and at the same time adjusts the tension of the tension with ^ tension to give a moderate tension, = the stitching of the needle hole from the needle after the suture is cut The length of the line. Here, the first line tension adjustment of the knife is used to determine the tension. When the thread is cut, the suture is supplied from the suture supply source by the tangent line. After the line is cut, the self-tension adjustment field mosquitoes will increase the tension of the first line (four) and the replacement stitch supply will be corrected by the tangential cutter at the time of cutting the line from the application of the 094146149 application on January 11, 101. The amount of the pull-out of the source is reduced, and the length of the suture which is applied from the needle hole of the needle after the suture is cut is shortened. The length of the suture extending from the needle hole of the needle is an important factor in the quality of the left and right seam. The length A of the suture extending from the needle hole of the needle is too long, and excessive stitching may occur at the beginning of sewing to make the appearance poor, if the needle If the length of the suture extending from the pinhole is too short, the sewing will not be connected to the lower thread at the start of sewing, and a gap will occur in the sewing. In addition, after the suture is cut, the object to be sewn is pulled by a wiper. The swing arm engages the sewing thread to pull it out of the object to be sewn by lateral movement between the needle and the object to be sewn. Therefore, when the suture is pulled out of the object by the swing arm, only the first thread tension adjustment knows the tension to the suture. [Patent Document] JP-A-2002-52286 [Minge; J. SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY THE INVENTION However, when the sewn material is a synthetic leather or the like, if the sewing is performed at a high speed, the needle is caused by the sewing object. The friction generates a high temperature, and the hole pierced by the needle dissolves and solidifies together with the subsequent suture. Therefore, when the tension is pulled out of the sewn object by the swing arm, if the tension of the i-th tension adjusting button is too small, the suture will protrude from the suture supply source, and the suture will be extended from the needle hole. The length of the suture is too long. On the other hand, if the tension of the first thread tension adjustment button is too large, there will be a small amount of stitches which are caused by the thread cutter to extend the thread supply source when the thread is cut, and the needle hole is stretched after the thread is cut. The length of the stitch is too short. Therefore, the tension adjustment of the first tension adjustment knob is very difficult. 5 In order to solve the problem, the object of the present invention is to provide a sewing machine which can make the length of the suture extending from the needle hole of the needle after the suture is cut to the most appropriate length. The solution to the problem is to solve the problem described in the first aspect of the invention. The invention of claim 1 provides a slitting machine having a needle, a thread, a needle thread passing through a front end thereof, and being placed on the upper and lower movements. The sewn material is sewn on the needle plate; the thread cutting device is disposed on the front cymbal, below the needle plate, and is cut off after the sewing is completed. The suture is just described, the traverse needle and the aforementioned quilt are crossed. Moving between the sewn objects, and the suture cut by the tangential device pulls out the sewn object and the thread tension applying device, and the tension is applied to the suture, which is characterized by a more linear tension. a control device, and the wire tension (four) device is for controlling the operation of the 4-wire tension imparting device, and when the slit 15 is pulled out of the front core sewing by the swing arm, the tension is applied to the suture, and the stitch is When it is completely pulled a before the frequency, the object is disassembled and tensioned. 20 Application No. 094146149 Modified on January 11, 101, in accordance with the invention recited in claim 1, the operation of the line tension control device and the second line tensioning device is to pull the suture out by the swing arm In the case of the above-mentioned broken product, tension is applied to the suture, and the tension is released when the suture is completely pulled out of the sewn object. Therefore, the tension is applied to the suture only when the suture 2 is applied. Therefore, the swing arm does not pull out the 2 line from the suture supply source, so that the length of the suture _ the rear suture from the needle is optimally long. ^ Therefore, the beauty of the sewn object is not impaired, and the sewing interval is prevented from being released from the sewn material after the suture is pulled out. Therefore, it is easy to change the line when the (4) machine is stopped. Threading. 7 ff 々 if if if ) ) ) ) ) ) ) ) ) ) ) ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° The line is supplied with 'and the seam card is elastically deformed according to the stitching', and the sensor system can detect that the aforementioned thread-removing phthalocyanine is present before the tension of the β-threaded magazine is subjected to the tension of the aforementioned stitch. The positioner ', the needle control splitting' is after the swing arm traverses between the needle and the workpiece to be sewn, and if the sensor does not detect the thread taking, the needle is stopped. Sportsman. According to the invention recited in claim 2, the needle control device stops the upper and lower movements of the needle when the swing arm crosses between the needle and the object to be sewn, and if the sensor does not detect the thread take-up, 33 ’. In this way, it can be detected whether the swing arm is returned to the original position. In other words, if the take-up spring does not return to the initial position, it means that there is still tension on the suture. The presence of the tension indicates that the swing arm is still engaged with the suture and the suture is pulled out from the sewn object. If the thread take-up spring does not return In the original position, the swing arm does not return to the original position. Therefore, it is possible to prevent the needle from being bent when the swing arm has not returned to the home position due to contact with the intermediate member or contact with the needle. In addition, the state of the swing arm can be judged by detecting the take-up magazine, so that it is not necessary to detect whether the swing arm returns to the home position sensor. According to the invention recited in claim 1, since the tension is applied to the suture only when the suture is pulled out, the swing arm does not pull the suture from the suture supply source, and the suture can be cut after the suture is cut. The length of the thread extending from the needle is the optimum length. Therefore, the appearance of the object to be sewn is not impaired, and the interval at the sewing place is prevented from occurring. In addition, since the tension applied to the suture is released after the suture is pulled out from the object to be sewn, it is easy to change the thread and thread when the sewing machine is stopped. 1363116 According to the second paragraph of the patent application scope, whether the arm returns to the original position can prevent the invention of the swing arm, thereby detecting the contact of the pendulum or the contact between the needle and the needle without the in-situ and medium-pressure parts. No need to =! Check out the take-up spring to determine the state of the swing arm, so " is dedicated to detecting whether the swaying shirt returns to the original sensor. [Poverty Mode] BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings. 10 (4) Chapter 1 Figure 11 Figure 5F ‘Slot 34 machine 1^ has a machine-connected source of the drive through the linkage mechanism (see section _), and is driven by the sewing motor ι〇 15 20
正替換頁 驅動之縫針卜在預疋魏之縫製結束後切斷縫線之切線裝 置8(參見第11H)、在切職置8靖縫線祕越縫針與載置 在針板上之被縫製物之間，將縫線自被縫製物拔出之擺臂 裝置2、成為對穿過縫針丨之針孔u(參見第艰）之縫線賦與 張力之線張力賦與裝置之線張力調整紐3、在將縫針自被縫 製物上拔出時將被縫製物壓向針板之中壓裝置4、及控制裝 置5 °亥控制裝置5控制線張力調整紐3，在擺臂裝置2將縫 線自被縫製物拔出時對縫線賦與張力，在縫線被完全從被 縫製物中拔出時解除對縫線賦與之張力，同時在擺臂裝置2 橫越縫針1與被縫製物之間後，若感測器34(參見第7、8圖） 未檢測出设於線張力調整紐3之取線彈簧時33(參見第7、8 圖），則停止針棒lb之操作。 (縫針） 縫針1與針棒lb之驅動連動，驅動於縫紉機!^之上下方 9 第094146149號申請案 101年1月11日修正替換 向上，藉此上下活動以縫製載置於針板上之被縫製物。縫 針1之前端形成有用以令縫線穿過之針孔la。 (擺臂裝置） 擺臂裴置2如第4〜第6圖所示，包含有：與設於縫紉機 筐體内之擺臂用電磁致動器2〇(參見第丨丨圖）、與該擺臂用電 磁致動器20連結之複數連結連桿21、連結該連結連桿21前 端之擺動連桿22、連結該擺動連桿22之凸輪構件23、旋轉 凸輪構件23之軸構件24、及連結軸構件24基端部之擺臂25。 換言之’當擺臂用電磁致動器2〇之驅動透過連結連桿 21傳達到擺動連桿22時，擺動連桿22會於上下方向上擺 動，而該擺動連桿22之上下方向上之擺動會透過凸輪構件 23轉為旋轉運動，令軸構件24旋轉。藉由軸構件24之旋轉 擺臂25會如第5圖所示，以基端部為旋動中心，而前端部旋 動。擺臂25之前端部如第6圖所示，形成有形成為鉤狀之拉 線部25a，該拉線部25a未使用時位於中壓件41與縫針1之間 之縫線Τ側面之位置，當擺動連桿22擺動以使用擺臂25時， 則如第5圖所示，其前端部會藉由橫越過中壓件41與縫針丄 之間，形成為鉤狀之拉線部25a可將穿過被縫製物及中推件 41之縫線T拉出。 (線張力調整知） 線張力調整鈕3(線張力賦與裝置）如第1、第7、第8圖 所示，具有與縫紉機河之縫線供應源靠近設置之第丨線張力 調整鈕31與設置地比第丨線張力調整鈕31更與靠近縫針之 第2線張力調整紐32 » ^年/0月j曰修^正替換頁 第1線張力調整鈕31設於縫紉臂前端部之上方，隨時對 縫線T賦與張力’具有防止因切線裝置8切斷縫線巧縫線供 應源供應過多縫線之功能。 第2線張力調整鈕32設於第1線張力調整鈕31之下方， 具有在縫製時對縫線T賦與適度張力，以防止縫製處鬆弛之 機能，在此’第2線張力調整鈕32對縫線T賦與之張力大於 第1線張力調整鈕31對縫線T賦與之張力。 在此’第2線張力調整鈕32如第7〜第1〇圖所示，藉由 線張力調整鈕用電磁致動器7之吸引力對縫線τ賦與張力。 第2線張力調整鈕32藉由以固定螺絲68、69穿過基底構 件63之螺孔63a、63a，再令固定螺絲沾、69之前端螺入線 張力調整鈕用電磁致動器7之螺孔70a、70a，以將基底構件 63與線張力調整鈕用電磁致動器7固定為一體。 線張力調整軸61之安裝是藉由是螺絲部61a在穿過調 整盤62、基底構件63、線調整軸螺帽64、金屬墊圈65、調 整彈簧66、金屬墊圈67之狀態下與線張力調整鈕用電磁致 動器7之柱塞（可動部）71之螺孔71a螺合而完成。線張力調整 軸61與柱塞71之固定位置，可藉線調整轴嫘帽64之鎖合狀 況來作適當調整。調整彈簧66在將縫線已具有預定張力之 狀態下調低張力時’為防止即使來自線張力調整钮用電磁 致動器7之推力下降但而線張力調整軸61之軸周邊之摩擦 力造成線張力調整轴61不會回來之情況而設爹_。因五，調 整彈簧66在將金屬墊圈65、67推離之方向，也就是線張力 調整轴61遠離線張力調整紐用電磁致動之方向上峡與 1363116 勢能。 線張力調整鈕用電磁致動器7如第1〇圖所示，具有杈塞 71、機殼72、線圈用框體73、線圈74、磁性構件75等。杈 塞71丈軸承72a、72b可移動而不可旋轉地支持。固定於杈 5塞71之磁性構件75為圓筒狀且其一部分形成有一段部 75a，該段部75a與軸心間之徑長有所改變。而藉此形狀， 往基/1之推力可得到The stitching device that replaces the page drive is cut at the end of the sewing machine, and the thread cutting device 8 (see the 11th) is cut off, and the needle is placed on the needle plate. Between the objects, the swing arm device 2 for pulling the suture out from the sewn object becomes the thread tension adjustment of the thread tension applying device for imparting tension to the suture passing through the needle pin u (see the arduous) New 3, when the needle is pulled out from the object to be sewn, the object to be pressed is pressed against the needle plate intermediate pressure device 4, and the control device 5 ° Hai control device 5 controls the line tension adjustment button 3, and the swing arm device 2 will The suture is tensioned to the suture when it is pulled out, and the tension is applied to the suture when the suture is completely pulled out from the sewn object, and the swing arm device 2 crosses the needle 1 and is After the sewing material, if the sensor 34 (see Figures 7 and 8) does not detect the thread take-up spring 33 (see Figures 7 and 8) provided in the thread tension adjusting button 3, the needle bar lb is stopped. operating. (Needle) The needle 1 is driven in conjunction with the driving of the needle bar lb, and is driven by the sewing machine! ^ Above the lower part 9 The application No. 094146149 on January 11, 2011 is corrected and replaced upwards, whereby the upper and lower movements are sewn and placed on the needle board. Sewn. The front end of the needle 1 forms a pinhole la which is used to pass the suture. (Swing arm device) As shown in Figs. 4 to 6, the swing arm device 2 includes an electromagnetic actuator 2 (see the figure) provided for the swing arm provided in the sewing machine casing, and a plurality of connecting links 21 connected to the swing arm electromagnetic actuator 20, a swing link 22 connecting the front end of the connecting link 21, a cam member 23 connecting the swing link 22, a shaft member 24 of the rotating cam member 23, and The swing arm 25 that connects the base end portion of the shaft member 24 is attached. In other words, when the driving of the swing arm electromagnetic actuator 2 is transmitted to the swing link 22 through the connecting link 21, the swing link 22 swings in the up and down direction, and the swing link 22 swings upward and downward. The shaft member 24 is rotated by the rotation of the cam member 23 into a rotational motion. The swing arm 25 is rotated by the base end portion as shown in Fig. 5 by the rotation of the shaft member 24, and the front end portion is rotated. As shown in FIG. 6, the front end portion of the swing arm 25 is formed with a hook-shaped wire portion 25a which is located at the side of the stitch Τ between the intermediate pressure member 41 and the needle 1 when not in use. When the swing link 22 is swung to use the swing arm 25, as shown in Fig. 5, the front end portion thereof is formed by hooking the wire portion 25a by traversing between the intermediate pressure member 41 and the needle pin. The suture T passing through the sewn object and the intermediate pusher 41 is pulled out. (Line tension adjustment) The thread tension adjustment knob 3 (the thread tension imparting device) has the first thread tension adjusting button 31 disposed close to the sewing machine supply line of the sewing machine as shown in the first, seventh, and eighth figures. The second thread tension adjustment button 32 is closer to the needle than the first thread tension adjustment button 31. The number of the first thread tension adjustment button 31 is set at the front end portion of the sewing arm. Above, the tension T is applied to the suture T at any time, and the function of preventing the sewn thread supply source from being supplied by the thread cutting device 8 is prevented from being supplied with excessive sutures. The second thread tension adjusting knob 32 is provided below the first thread tension adjusting knob 31, and has a function of imparting a moderate tension to the stitching T during sewing to prevent slack in the sewing position. Here, the 'second thread tension adjusting knob 32' The tension applied to the suture T is greater than the tension applied to the suture T by the first thread tension adjusting knob 31. Here, as shown in the seventh to the first drawings, the second thread tension adjusting knob 32 applies tension to the stitch τ by the attraction force of the electromagnetic actuator 7 of the thread tension adjusting button. The second wire tension adjusting button 32 is threaded through the screw holes 63a, 63a of the base member 63 by the fixing screws 68, 69, and the screw is stuck to the fixing screw 69, and the front end of the screw is inserted into the screw hole of the electromagnetic actuator 7 of the wire tension adjusting button. 70a, 70a, the base member 63 and the wire tension adjusting knob are integrally fixed by the electromagnetic actuator 7. The wire tension adjusting shaft 61 is attached to the wire tension by the screw portion 61a passing through the adjusting plate 62, the base member 63, the wire adjusting shaft nut 64, the metal washer 65, the adjusting spring 66, and the metal washer 67. The button is completed by screwing the screw hole 71a of the plunger (movable portion) 71 of the electromagnetic actuator 7. The wire tension adjustment shaft and the fixed position of the plunger 71 can be appropriately adjusted by the wire lock adjustment of the shaft cap 64. When the adjustment spring 66 lowers the tension in a state where the suture has a predetermined tension, the frictional force around the shaft of the wire tension adjusting shaft 61 is prevented even if the thrust from the wire tension adjusting button electromagnetic actuator 7 is lowered. The wire tension adjusting shaft 61 is not set to return _. Because of the fifth, the adjustment spring 66 pushes the metal washers 65, 67 away from the direction, that is, the line tension adjustment shaft 61 is away from the line tension adjustment button in the direction of the electromagnetic actuation of the upper gorge and the 1363116 potential energy. The wire tension adjusting knob electromagnetic actuator 7 has a plug 71, a casing 72, a coil frame 73, a coil 74, a magnetic member 75, and the like as shown in Fig. 1 . The piston 71 bearings 72a, 72b are movable and non-rotatably supported. The magnetic member 75 fixed to the crucible 5 plug 71 has a cylindrical shape and a part thereof is formed with a section 75a, and the length of the length between the section 75a and the shaft center is changed. With this shape, the thrust to the base / 1 can be obtained
1515
20 T土'骨〈丁枉险间〇 另外，隨著對線張力調整紐用電磁致動器7輪出之通電 流升兩，推力會增大。線張力調整鈕用電磁致動器7是安 裝為對線圈74通電時將線張力調整㈣吸人(對縫線職與 張力）’隨者通電電流之升高’藉線張力調整軸61對縫線啤 與之張力會增大。換言之，第2線張力調整钮32只有在通電 電机改變時改變縫線之張力，而電流值受控制裝置之指 信號控制。 ’、 另外’如第7、細所示，請張力調独Μ設有在 ^線張力前純、树張力調餘 碑與相街較小張力以對縫線對縫線Ί 33。取線强張力進仃微調之取線彈簧 近嗔斜< $ ^過有受第2線張力調整紐賦與張力之靠，若對縫線了作用之張力増大， ::臂：取線彈酱33往靠近縫针1的-側換曲。換言之， 取線?f撓曲，而縫線T被切斷後 译簧33會因其復元力而返回初始之位置。 在取線彈㈣旁設有—檢測取線彈簧Μ是㈣回初始 電 12 位置之感測器34。感測器34，例如可構成為在取線彈簧33 於初始位置時與取線彈簀33接觸，在取線彈簧33彈性變形 時自感測盗34離開，以其接觸之有無來檢出取線彈簧33之 存在。 / (中壓裝置） 中壓裝置如第1〜第3圖所示，設有上軸，該上軸上下 驅動其前端設有縫針i之針棒lbe該上軸連結_機馬達 10，受肋機馬咖之轉料_力透輯桿機構傳達 至中壓件41 ’以進行中壓件41之上下運動。該中㈣41與 針棒lb同步上下活動，在將縫針丨被舉_自被縫製物中取 出時下降，以壓住被縫製物，可防止被縫製物之浮動。 另外，中壓件41透過連桿機構連結與縫幼機馬達10分 别設置之巾壓件高朗_步進騎4G(參見第叩），可調 郎中壓件41壓住被縫製物之下死點距針板之高度。 (控制裝置） ^控制裝置5如第11圖所示，具有進行各種處理之cpu5i 及記憶有程式或資料等之記憶體52。 。己憶體52中形成有CPU51進行處理之作業區53、記錄 處理用資料之資料區54、及記憶有用於進行各種處理之程 式之程式區55。 資料區5 4記憶有關於對被縫製物進行縫製之縫製資料 a °亥縫製資料54a中記憶有下針位置之座標、中壓件距 針板之高度、針棒ib之升降時機、驅動第2線張力調整鈕32 時機、藉第2線張力調整紐32對縫線賦與之張力值等。 程式區55中記憶有線張力控制程式55a。該線張力控制 程式依據記憶於資料區54中之縫製資料54a，控制第2線張 力調整奴32之操作，在擺臂裝置2將縫餘Λ被縫製物時， 對縫線賦與張力，而在縫線被完全拉出被縫製物時，解除 賦與之張力。目此，控制裝置5藉*CPU51執輯張力控制 程式55a’控制第2線張力調整紐32對縫線賦與之張力，以 發揮線張力控制裝置之機能。 另外，程式區55中記憶有縫針控制程式55b。該縫針斤 制程式5驗據記憶於資料區54中之縫製資料54a，在擺臂 裝置2橫越縫針1與載置在針板上之被縫製物之間後，: 測器34未檢出取_簧33，則停止縫針丨之動作。因此，= 制裝置5藉由CPU51執行線張力控制程式55b，控制針棒^ 之麵作，以發揮縫針控制I置之機能。 〈從切斷縫線至拔出縫㈣之操作〉 呢月并有則述構成之縫紉機在縫製時，從切 縫線至拔出縫線間之操作。 如第12圖所示，控制裝置5在縫製途中判斷是否為 縫線之時機(步驟S1)。在此，控制裝置$判斷為切斷縫 時機時（步驟S1 : YES) ’控制裝置5執行線張力控制程 55a’以解除第2線張力調整紐32對縫線賦與之張力（步^ )另方面，控制裝置5判斷為非切斷縫線之時機時 驟SI . NO) ’則控制|置5不斷重複該判斷。 ’ 接著’控制裝置5對切線裝置8輸出動作信號， 裝置8切斷縫線(步驟S3)。 接著’控制裝置5判斷是否為將縫線從被縫製物及中壓 件41中拔出之時機(步踢S4)。在此，控制裝置5因感測器9(參 見圖11)檢出縫⑴位於預定位置，判斷為拔線時機時(步驟 S4. YES)’控制裝置5執行線張力控制程式55a，令第2線張 5力縣如2再度對職賦與張力（步卿）。另—方面控制 裝置5判斷為非拔線時機時(步驟S4 : NO)，則控制裝置5不 斷重複該判斷。 • 藉第2線張力調整鈕32再度對縫線賦與張力後，控制裝 置5對擺臂裝置2輸出動作信號’令其將縫線從被縫製物及 10中壓件41中拔出（步驟S6)。 接著’控制裝置5判斷縫線是否完全被從被縫製物及中 壓件41中拔出（步驟S7)。在此，控制裝置5判斷拔線完成時 (步驟S7: YES)，控制裝置5執行線張力控制程式祝，令 第2線張力調整鈕32解除對縫線賦與之張力（步驟S8)，並結 15束本處理。另一方面，控制裝置5判斷拔線尚未完成時(步 • 驟幻：N0)，則則控制裝置5不斷重複該判斷。 <發生異常時縫紉機之操作> .. 接者，說明縫纺機在發生異常時之操作。 如第13圖所示，控制裝置5以感測器34是否檢出取線彈 簧33來判斷取線彈簧33是否位於初始位置（步驟S21)。在 此，控制裝置5判斷感測器34檢出取線彈簧33位於初始位置 時(步驟S21 : YES)，開始縫製。另一方面，控制裝置5判斷 感測器34未檢出取線彈簧33位於初始位置時（步驟S21 : NO)，則控制裝置5不斷重複該判斷。 15 在縫製中，控制裝置5持續藉感測器34檢出取線彈菁 之位置，在控娜置5麟_器轉續檢出取線彈菁_ 預定時間時(步驟咖YES)，控姆置5停止與縫㈣之驅 動有關之全部驅動源（步驟25)，並結束本處理。另一方面， 在控制裝置5判斷感測器34未持續檢出取線彈簧33達預定 時間時（步驟S23 : NO) ’控制裝置5判斷在驅動擺臂裝置2 後預定時間内感測器34是否檢出取線彈簧33位於初始位置 (步驟S24)。 在步驟S24中，控制裝置5判斷在驅動擺臂裝置2後預定 時間内感測器34檢出取線彈簧33位於初始位置時（步驟 S24: YES)，控制裝置5讀取縫製資料54a，判斷是否結束縫 製（步驟S26)。另一方面，控制裝置5判斷在驅動擺臂裝置2 後預定時間内感測器34未檢出取線彈簧33位於初始位置時 (步驟S24 : NO)，控制裝置5停止與縫紉機之驅動有關之全 部驅動源（步驟25)，並結束本處理。 在步驟S26中，控制裝置5若判斷結束縫製（步驟S56 : YES)，則結束本處理。若控制裝置5判斷縫製仍未結束，則 控制裝置5返回步驟S23之判斷，並重複該判斷。 <實施形態之作用效果> 依據實施形態之縫紉機Μ，控制裝置5控制第2線張力 調整紐32 ’在擺臂25將縫線Τ自被縫製物拔出時對縫線τ賦 與張力，在縫線Τ被完全從被縫製物中拔出時解除對縫線τ 賦與之張力。藉此只在拔出縫線Τ時對縫線Τ賦與張力，因 此擺臂25不會自縫線供應源拉出縫線τ，可使縫線τ切斷後 1363116 縫線T自縫針伸出之4θ 長Α為最適之長度。因此，不會損及被 縫製物之美觀，並防止縫製處間隔之產生。另外 線T自被縫製物拔出後會解除對縫線τ賦與之張力，在 縫纺機停止時容易進行換線與穿線。 在 520 T soil 'bone < Ding 枉 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 The wire tension adjusting button electromagnetic actuator 7 is installed to adjust the wire tension when the coil 74 is energized (four) sucking (for the stitching position and tension) 'the rise of the energizing current with the wire' tension adjusting shaft 61 Line beer will increase its tension. In other words, the second thread tension adjusting knob 32 changes the tension of the suture only when the energizing motor is changed, and the current value is controlled by the finger signal of the control device. ‘, In addition, as shown in the seventh and fine, please adjust the tension to the front of the line tension, the tree tension adjustment, and the small tension on the street to match the suture to the suture. Take the line strong tension into the 仃 fine adjustment of the line spring near skew ● $ ^ has been affected by the second line tension adjustment and tension, if the tension on the suture is large, :: arm: take the line bomb The sauce 33 is changed to the side near the needle 1. In other words, the line f is deflected, and after the stitch T is cut, the translation spring 33 returns to the initial position due to its recovery force. A detector 34 is provided adjacent to the take-up projectile (4) to detect the take-up spring Μ (4) back to the initial power 12 position. The sensor 34 can be configured, for example, to come into contact with the take-up magazine 33 when the take-up spring 33 is in the initial position, and the self-sensing thief 34 is separated when the take-up spring 33 is elastically deformed, and is detected by the presence or absence of contact. The presence of the wire spring 33. / (Medium pressure device) The intermediate pressure device is provided with an upper shaft as shown in the first to third figures, and the upper shaft drives the needle bar lbe having the needle i at the tip end thereof. The upper shaft is coupled to the motor 10, and is subjected to ribs. The transfer of the machine horse to the medium pressure piece 41' is carried out to move the middle pressure piece 41 up and down. The middle (four) 41 moves up and down in synchronization with the needle bar 1b, and is lowered when the needle is lifted and taken out from the object to be sewn to press the object to be sewn, thereby preventing the suspended object from floating. In addition, the intermediate pressure member 41 is connected to the slitting machine motor 10 through the link mechanism, and the towel pressing member is respectively disposed _step riding 4G (see the third), and the adjustable Lang middle pressing member 41 is pressed against the sewn object to die. The height of the needle from the needle plate. (Control Device) ^ As shown in Fig. 11, the control device 5 has a CPU 5i for performing various processes and a memory 52 for storing programs or data. . In the memory 52, a work area 53 for processing by the CPU 51, a data area 54 for recording processing data, and a program area 55 in which a program for performing various processing is stored are formed. In the data area, the memory information about the sewing of the sewn material is a memory. The coordinates of the lower needle position in the 54° sewing data 54a, the height of the middle pressure piece from the needle plate, the lifting timing of the needle bar ib, and the driving second The tension of the thread tension adjustment knob 32, the tension value given to the suture by the second thread tension adjustment button 32, and the like. The cable tension control program 55a is memorized in the program area 55. The thread tension control program controls the operation of the second thread tension adjustment slave 32 based on the sewing data 54a stored in the data area 54, and applies tension to the seam when the swing arm device 2 cuts the seam to be sewn. When the suture is completely pulled out of the sewn object, the tension is released. For this reason, the control device 5 controls the tension applied to the suture by the second thread tension adjusting button 32 by the CPU 51 executing the tension control program 55a' to exert the function of the thread tension control device. Further, a stitch control program 55b is stored in the program area 55. The stitching program 5 is stored in the sewing data 54a stored in the data area 54. After the swing arm device 2 traverses the sewing needle 1 and the workpiece placed on the needle plate, the detector 34 is not detected. When the _ spring 33 is taken, the action of the stitch 丨 is stopped. Therefore, the controller 5 executes the thread tension control program 55b by the CPU 51 to control the surface of the needle bar to exert the function of the needle control I. <Operation from cutting the suture to pulling out the seam (4)> The month and the sewing machine are arranged to cut from the slit line to the extraction stitch. As shown in Fig. 12, the control device 5 determines whether or not the stitching is in the middle of sewing (step S1). Here, when the control device $ determines that the sewing timing is cut (step S1: YES), the control device 5 executes the wire tension control path 55a' to release the tension applied to the suture by the second thread tension adjusting button 32 (step ^) On the other hand, the control device 5 determines that the timing of the non-cutting of the suture is SI. NO) 'The control|set 5 repeats the determination. Then, the control device 5 outputs an operation signal to the thread cutting device 8, and the device 8 cuts the suture (step S3). Next, the control device 5 determines whether or not the timing of pulling the suture from the workpiece and the intermediate member 41 is taken (step S4). Here, the control device 5 detects that the slit (1) is at the predetermined position by the sensor 9 (see FIG. 11), and determines that the thread is pulled (step S4. YES). The control device 5 executes the thread tension control program 55a, making the second Line Zhang 5 Lixian, such as 2 re-employment and tension (step Qing). When the other aspect control device 5 determines that it is a non-wire pulling timing (step S4: NO), the control device 5 repeats the determination. • After the tension is applied to the suture again by the second thread tension adjusting knob 32, the control device 5 outputs an operation signal 'to the swing arm device 2' to pull the suture from the object to be sewn and the 10 intermediate member 41 (steps) S6). Next, the control device 5 judges whether or not the suture is completely pulled out from the object to be sewn and the intermediate member 41 (step S7). Here, when the control device 5 determines that the wire drawing is completed (step S7: YES), the control device 5 executes the wire tension control program, and causes the second wire tension adjusting button 32 to release the tension applied to the stitch (step S8), and The knot is 15 bundles of this treatment. On the other hand, when the control device 5 judges that the cable has not been completed (step: illusion: N0), the control device 5 continuously repeats the determination. <Operation of the sewing machine when an abnormality occurs> .. The operator explains the operation of the sewing machine when an abnormality occurs. As shown in Fig. 13, the control device 5 determines whether or not the take-up spring 33 is located at the initial position by the sensor 34 detecting the thread take-up spring 33 (step S21). When the control device 5 determines that the sensor 34 has detected that the thread take-up spring 33 is at the initial position (step S21: YES), the sewing device starts sewing. On the other hand, when the control device 5 determines that the sensor 34 has not detected that the thread take-up spring 33 is at the initial position (step S21: NO), the control device 5 repeats the determination. 15 In the sewing process, the control device 5 continues to use the sensor 34 to detect the position of the take-up bullet, and in the control of the 5 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The device 5 stops all the driving sources related to the driving of the slit (four) (step 25), and ends the processing. On the other hand, when the control device 5 determines that the sensor 34 has not continuously detected the take-up spring 33 for a predetermined time (step S23: NO), the control device 5 determines that the sensor 34 is within a predetermined time after the swing arm device 2 is driven. Whether or not the take-up spring 33 is detected is located at the initial position (step S24). In step S24, the control device 5 determines that the sensor 34 detects that the thread take-up spring 33 is at the initial position within a predetermined time after the swing arm device 2 is driven (step S24: YES), and the control device 5 reads the sewing data 54a and judges Whether or not the sewing is finished (step S26). On the other hand, the control device 5 determines that the sensor 34 has not detected that the thread take-up spring 33 is at the initial position within a predetermined time after the swing arm device 2 is driven (step S24: NO), and the control device 5 stops the driving of the sewing machine. All drive sources (step 25), and the process ends. When the control device 5 determines to end the sewing in step S26 (step S56: YES), the processing ends. If the control device 5 judges that the sewing has not been completed, the control device 5 returns to the judgment of step S23 and repeats the determination. <Operation and Effect of the Embodiment> According to the sewing machine of the embodiment, the control device 5 controls the second thread tension adjustment button 32' to apply tension to the suture τ when the swing arm 25 pulls the suture from the object to be sewn When the suture thread is completely pulled out from the sewn product, the tension applied to the suture τ is released. Therefore, the suture is endowed and tensioned only when the suture thread is pulled out, so the swing arm 25 does not pull the suture τ from the suture supply source, and the suture τ is cut off after the suture τ is cut. The 4θ long Α is the optimum length. Therefore, the appearance of the object to be sewn is not impaired, and the interval at the sewing place is prevented from occurring. Further, when the thread T is pulled out from the sewn material, the tension applied to the suture τ is released, and the thread change and threading are easily performed when the sewing machine is stopped. At 5
。帛線張力調整紐32是藉線張力調整la用電磁致 動器7^5丨力對縫線τ賦與張力因此可以電氣控 線T賦與之張力，因此可4地、分段仔細地進行設定。^ 外’亦利用可令縫線T穿過二個調整盤，以彈性構件隨時抵 接該一侧整盤’細線張力調整_電磁致動H7舉起調 整盤之線張力調整；Ig。 另外亦可以步進馬達驅動齒輪，使齒前後移動以變 更縫線張力來取代線張力調整紐用電磁致動器7。 另外，控制裝置5在擺臂25橫越縫則與被縫製物之間 後’若感測器34未檢測出設於線張力調整紐3之取線彈菁時 15 33贿止縫針丨之操作1此，可檢出擺㈣是否回復原. The twisting tension adjustment button 32 is used to adjust the tension of the suture τ by the electromagnetic actuator 7^5, so that the tension can be imparted to the electric control wire T, so that it can be carefully performed in four places and in sections. set up. ^ outside is also used to allow the suture T to pass through the two adjustment discs, and the elastic member can abut the one side of the whole disc at any time. 'Thin line tension adjustment _ Electromagnetic actuation H7 lifts the thread tension adjustment of the adjustment disc; Ig. Alternatively, the stepping motor drive gear may be used to move the teeth back and forth to change the thread tension to replace the wire tension adjusting button electromagnetic actuator 7. In addition, the control device 5 traverses the slit between the swing arm 25 and the object to be sewn. If the sensor 34 does not detect the thread tensioning of the thread tension adjustment button 3, the operation of bribing the needle stitch 1 this, can check out the pendulum (four) whether to restore the original
位。換言之’取線彈簧33若未返回初始位置，即代表縫線T 上仍有張力作用，該張力之存在表示擺抑仍與縫線丁卡合 並自被縫製物中拔出縫線τ，若取線彈簧33未返回原位^ 擺臂25亦未返回原位。因此，可防止在擺臂25尚未返回原 2〇位時與中遂件41之接觸、或與縫針i之接觸造成之縫針弯 另外，藉由檢出取線彈簧33即可判斷擺臂25之狀態， 因此不需專用於檢出擺臂25是否返回原位之感測器。 另外，本發明並不受上述實施形態限制。例如，取線 17 汽3之檢出方法亦可利用以在取線彈簧33設置反射板， =从光源發出之光作為感測器之構成。另外，縫紉機之異 曰檢出處理中，感測器持續檢出取線彈簧33位於初始位置 严否達預定時間之判斷方法，及擺臂裝置於驅動後預定時 、内感测器是否檢出取線彈簧33位於初始位置之判斷方 法，亦可分別處理，而不如前述般併用。另外，線張力調 整紅之構造等亦可自由變更。 C圖式簡單明j 第1圖係縫紉機之斜視圖。 第2圖係中壓件附近之斜視圖。 第3圖係顯示以擺臂拔線時，縫針與中壓件位置關係之 側面圖。 第4圖係擺臂裝置之側面圖。 第5圖係擺臂裝置之正面圖。 15 第6圖係拉線部之放大圖。 第7圖係第2線張力調整鈕之斜視圖。 第8圖係第2線張力調整鈕之正視圖。 第9圖像第2線張力調整紐之分解斜視圖。 20 第10圖係電磁致動器裝置之截面圖。 第11圖係控制裝置構成之方塊圖。 顯示進行從切斷縫線至拔岐線間操作時控 制裝置所進行之控制之流程圖。 程圖第13_軸示發生異常時控缝置所進行之控制之流 18 1363116 【主要元件符號說明 1.. .縫針 la…針孔 lb...針棒 10.. .縫紉機馬達 2.. .擺臂裝置 20.. .擺臂用電磁致動器 21.. .連結連桿 22.. .擺動連桿 23.. .凸輪構件 24.. .軸構件 25…擺臂 3···線張力調整鈕(線張力賦與 裝置） 31·.·第1線張力調整鈕 32···第2線張力調整鈕 33.. .取線彈簧 34.. .感測器 4.. .中壓裝置 40.··中壓件高度調節用步進馬 達 41.. .中壓件 5.. .控制裝置（線張力控制裝 置、縫針控制裝置）Bit. In other words, if the thread take-up spring 33 does not return to the initial position, it means that there is still tension on the stitching T. The presence of the tension indicates that the stitching is still combined with the stitching, and the stitching τ is pulled out from the stitched object. The wire spring 33 does not return to the home position ^ the swing arm 25 does not return to the home position. Therefore, it is possible to prevent the needle from being bent by the contact with the middle member 41 or the contact with the needle i when the swing arm 25 has not returned to the original position 2, and the swing arm 25 can be judged by detecting the thread take-up spring 33. State, so there is no need to specialize in detecting whether the swing arm 25 returns to the sensor in situ. Further, the present invention is not limited by the above embodiment. For example, the detection method of the take-up line 17 steam 3 can also be utilized to provide a reflection plate at the take-up spring 33, and the light emitted from the light source is used as a sensor. In addition, in the different detection processing of the sewing machine, the sensor continuously detects the determination method that the take-up spring 33 is located at the initial position for a predetermined time, and whether the internal sensor is detected when the swing arm device is scheduled after driving The method of judging the take-up springs 33 at the initial position may be separately processed instead of being used as described above. In addition, the structure of the line tension adjustment red can be freely changed. C is simple and clear. Figure 1 is a perspective view of the sewing machine. Figure 2 is a perspective view of the vicinity of the middle pressure piece. Fig. 3 is a side view showing the positional relationship between the needle and the intermediate member when the wire is pulled by the swing arm. Figure 4 is a side view of the swing arm device. Figure 5 is a front view of the swing arm device. 15 Fig. 6 is an enlarged view of the wire drawing section. Fig. 7 is a perspective view of the second thread tension adjusting button. Fig. 8 is a front view of the second thread tension adjusting button. The ninth image of the second line tension adjustment is an exploded perspective view. 20 Figure 10 is a cross-sectional view of an electromagnetic actuator device. Figure 11 is a block diagram showing the construction of the control device. A flow chart showing the control performed by the control device from the cutting of the suture to the operation of the drawing line is shown. The 13th axis of the diagram shows the flow of control when the abnormality occurs. 18 1363116 [Main component symbol description 1.. Needle la...pinhole lb...needle bar 10...Sewing machine motor 2.. Swing arm device 20: electromagnetic actuator for swing arm 21.. connecting link 22.. swing link 23.. cam member 24.. shaft member 25... swing arm 3··· line Tension adjustment button (wire tension imparting device) 31···1st thread tension adjustment knob 32··· 2nd thread tension adjustment knob 33.. Take thread spring 34.. Sensor 4: Medium pressure Device 40.··Stepping motor for adjusting the height of medium pressure piece 41.. Medium pressure piece 5.. Control device (wire tension control device, needle control device)
51.. .CPU 52.. .記憶體 53.. .作業區 54.. .資料區 54a...縫製資料 55.. .程式區 55a...線張力控制程式 55b...縫針控制程式 61…線張力調整軸 6 la...螺絲部 62.. .調整盤 63.. .基底構件 63a...螺孔 64.. .線調整軸螺帽 65、67...金屬墊圈 66.. .調整彈簧 68、69...固定螺絲 7.. .線張力調整鈕用電磁致動 器 70a...螺孔 71.. .柱塞 7 la…螺孔 72…機殼 19 1363116 73.. .線圈用框體 74.. .線圈 75.. .磁性構件 75a...段部 8.. .切線裝置 9.. .主軸感測器 M...縫紉機 T...縫線51.. .CPU 52.. .Memory 53.. .Working area 54...Data area 54a...Sewing data 55.. Program area 55a...Line tension control program 55b...Needle control program 61... wire tension adjusting shaft 6 la... screw portion 62.. adjusting plate 63.. base member 63a... screw hole 64.. wire adjusting shaft nut 65, 67... metal washer 66. Adjusting springs 68, 69... fixing screws 7.. Wire tension adjusting knob with electromagnetic actuator 70a... screw hole 71.. plunger 7 la... screw hole 72... housing 19 1363116 73. . . . for the coil frame 74.. coil 75.. magnetic member 75a... segment 8.. tangential device 9.. spindle sensor M... sewing machine T... stitching