九、發明說明： 【發明所屬之技術領域】 本發月係有關鋸齒縫縫紉機之線端處理裝置。詳令 八係有關種鋸齒縫縫紉機之線端處理裝置，當利用 錄齒縫縫_縫完料針跡時隨著針之上升於縫製布之下 方進行切斷後，將自針下垂的針線端部以針線夾具失著往 =製部之側方移動，並於開始縫下-塊縫製布時於該縫製 上面附近將往該側方移動之針線以切線器切斷。 【先前技術】 於鑛齒縫縫幼機，若縫完時不處理自針下垂之針線而 接開始縫下塊縫製布，自針下垂的針線端部便由於針 下降移動而被拉往縫製布之下側，於縫幼進行數針期間 纏繞針跡’該針線端部亦跟㈣齒針跡，，亦即產生鳥巢狀 ^質不良之㈣針m防止上述開始縫料針跡品 質之惡化，可以利用例如日本實公平5一32〇67號公報所揭 ~ 種〃有針線夹具及切線器所構成之線端處理裝置的 錄齒縫縫幼機，該針線夹具，是用來於縫完時將自針下垂 的針線端部夾著往側方移動，㈣線器則用來在對下一塊 縫製布縫數針之期間於縫製布上面附近切斷被抓著往側方 移動之針線。 此外，一般習知之鋸齒縫縫紉機，例如日本特開平1 〇 、21刪號公報所揭示，係具備針線張力^及預張力機 構：該針線張力器具有··能保持針線供給路徑途中之針線 繞在外周面部至少―圈以上以使線張力於平常縫幼時將導 1^^4048 同對針之針線供給保持適當而圓滑的圓盤（disk)、及用來 對該圓盤之旋轉施加摩擦力矩的彈簧；該針線張力器，能 利用針線供給（與縫製動作相連）所造成之圓盤旋轉來對針 線施加送出既定之張力；該預張力機構，設於比該針線張 力益更靠針線供給方向之上游側，用來在針線藉針線張力 器送出前事先施加張力。 由上述之各習知技術得知，鋸齒縫縫紉機，若要在進 行線端處理（於縫完丨塊縫製布時於縫製布之下方切斷後， 將自針下垂的針線端部以針線夹具夾住並移往縫製部之側 方，並於開始縫下—塊縫製布時於該縫製布上面附近將移 枝該側方的針線端部以切線器切斷）時控制針線之送出，一 =疋直接（亦即以平常縫紉時設定之張力）使用用來提供平 ㊉縫紉時之線張力的針線張力器及預張力機構。在此情形 下，會有如下的問題發生。 亦P預張力機構，係用來對針線施加預張力，以避 月現象（平吊縫切時針線張力器之圓盤不旋轉）發生。 =當平常縫㈣依縫製布之厚度、布組織之柔軟性等來 L 線張力器所產生之張力時，預張力亦根據經調整之 等之I:整，目此，不論縫製布之厚度、布組織之柔軟性 改"將平常縫初時之線張力保持適當。 如此，習知之預張力機構， 線張力MA i *帛來將平常縫幼時之 ,、'田，故能在一定範圍内調整（設 因此，若將該預張力機構以 0 x 接用於線端處理時針線之…：："所調整之預張力直 時針線之以控制，則往針線 移動所造成的針線帶出量 紉時之狳弭士 Θ s不穩疋#即，若平常縫 則當為了二考量下所設定之預張力機構之預張力大， 移動時，針二3=針線夾具夾著針線端部往側方 件之:方拉出，結果’針線端部留在下一塊縫製布與壓布 般品質差的部分形成如鳥巢狀 斜錄士 , 祁反地，右預張力機構之預張力小，則 么士果，於受線端處理往針線失具之側方移動而過度送出， ”°，待切斷之針線長度變長，致針線的浪費增加。 【發明内容】 :發明係有鑑於上述問題而為者，其目的在於提供一 =縫幼機之線端處理裝置，於平常縫幼時，不論縫製 冬旱X布·組織之柔軟性等如何改《，均能經常保持適 二的線張力’確實形成既定之鑛齒針跡，x，將線端處理 ’針線之帶出量穩定化，不再產生如烏巢狀般品質差的針 跡另外，能降低針線浪費、進行適當的線端處理。 為了達成上述之目的，本發明之錄齒縫縫幼機之線端 處理裝置’具有能與縫幼機主轴之旋轉同步旋轉的抬線桿 機構、达布機構、擺針機構以便形成鋸齒針跡，並且具有： 針線張力益，具有能將通往針之針線供給路徑中之針 線繞在外周面部至少、1圈以上且保持的圓盤、及用來對圓 盤之旋轉施加摩擦力矩的彈簧，其能藉由與縫製動作相連 之針線供給所產生之圓盤旋轉來對針線施加既定之張力後 送出； 預張力機構，設於比針線張力器更靠針線供給方向之 之：Γ二:更：對針線預先施加張力俾使其在針線張力器 〈适出時不打滑； 使祐夾具’用來於縫完時夾住自針下垂之針線端部且 者之針線端部往縫製部側方移動；及 〜切線器，用來於被縫製布上面附近切斷被針線夹具夹 者彺縫製部側方移動之針線端部；其特徵在於： 於比該預張力機構更靠針線供給方向之上游側，設有 能將針線供給路徑中 x 彳τ之針線保持彈性的輔助針線保持機 構，並設有能進行平常㈣之作用狀態與針線端部處理之 作用狀態之切換的作用切換機構；該平常縫切作用狀態， 係解除辅助針線保持機構對針線之彈性保持，並藉預張力 機構對針線施加預張力；該針線端部處理之作用狀態，係 使預張力機構不施加預張力’並藉輔助針線保持機構將針 線保持彈性β 依上述般構成之本發明之鋸齒縫縫紉機之線端處理裝 置，於平常縫紉時，由於將作用切換機構切換為平常㈣ 之作用狀態’依照縫製布之厚度、布組織之柔軟性等來調 整針線張力器對針線之張力，並根據此張力調整預張力機 構所產生之預張力，故經常保持適當的線張力，不論縫製 布之厚度、布組織之柔軟性等如何改變，均能確實、良好 地形成既定之鑛齒針跡。此外，在針線夾具於缝完一塊縫 製布後夾住針線肖，由於將#用切換機構切換為針線端部 處理之作用狀態，使預張力機構不施加預張力，並藉輔助 1324648 針線保持機構料線保㈣性，故能料線供給路徑中之 針線變更於適合線端處理的針線保持力，將線端處理時針 線之帶出量穩定化。因&，防止針線端部脫離針線夹具留 在下-塊縫製布與壓布件之間而形成鳥巢狀般品質差的針 跡，亦可防止針線過度送出切斷之針線長度變得非常長導 致要丟棄之針線浪費多’故不拘平常縫切時之線張力，均 月&經常確實進行適當的線端處理。 本發明之鋸齒縫縫紉機之線端處理裝置中，如申請專 利範圍第2項所記載，預張力機構對針線施加的預張：及 辅助針線㈣機構對針線施加的彈性料力可分別調整， 藉此，平常縫幼時可將線張力之調整範圍、及線端處理時 針線保持力之調整範圍分別充分加大，對厚度、組織之柔 軟性等不㈣各種㈣布亦可進行料適#㈣齒縫及線 端處理。 、 又，本發明之録齒縫縫幼機之線端處理裝置中如申 請專利範圍第4項所記載，亦可將輔助針線保持機構及預 張力機構分別獨立裝設於縫勿機臂，不過，較佳係如申請 專利範圍帛3項所記載，將該辅助針線保持機構、及用^ 切換该輔助針線保持機構與預張力機構之作用狀態的作用 切換機構’以成為一體之方式裝設於導線座(用來將預張力 機構安裝於縫幼機臂）。在此情形，為了安裝預張力機構， 可以直接利用設於習知鋸齒縫縫幼機的既存安裝部，來將 辅助針線保持機構及作用切換機構安裝於縫幼機臂因 此’不僅不須改造縫，_臂’而且針線之跑動路徑（供給路 丄 么）亦不㈣太多改變，即可將針線之供給作用經常保持圓 滑’發揮上述之本發明之功效。 此外，該士刀、線器可設於縫製布上面附近之位£，不過， 較佳如申請專利範圍第5項所記載，以與壓布件之針落槽 乂’，方式固疋於虔布件。尤其，若如申請專利範圍第6 項所β己載，將切線器固定於壓布件下面的情形，可將導致 縫製品質降低的針線端部完全切斷。 有關本發明之其他目的及功效，將可在後述之實施例 中清楚了解。 【貫施方式】 、下根據圖式說明本發明之實施形態。 圖卜係本發明之鋸齒縫縫紉機全體的立體圖，圖2， ⑽幼機之要部放大立體圖。該鋸齒縫縫幼機卜 届杯機構5(具備：與裝於縫切機臂2内的主轴（眾所 二文省略圖不）之旋轉同步旋轉的旋轉圓板3,及固 於該旋轉圓板3的；,、 Μ目士 的抬線~ 4)設於縫㈣臂2之前面部所形 :的具有開閉式護板6之凹狀開口部，並且 ： 2機構(眾所周知，故省略圖示)與該主轴相連的針二 裝有針8,且於壓桿9之下端部安裝有壓布件 針機Γ，於該縫幼機臂2内設有用來形成鑛齒針跡之擺 針機構，且於縫紉機庆么 擺 有修線裝置、送布設之針板12之下部配設 知，故省略該等機：子機構等，該等機構係眾所周 中之符° 之具體構造之圖示及說明。再者，圖！ 符破30係下導筒裝置，⑴系下導筒預張力機構。 10 1324648 於該縫紉機臂2之末端下部設有針線夾具（wiper)2l及 輔助針線失具27 ;該針線夾具21 ’係能被圖外之氣壓紅驅 動而繞著支承於針線夾具台28(固定於該縫紉機臂2)的針 線夾具軸29搖動，用來在縫完時隨著針8之上升於縫製布 之下方利用該修線裝置切斷後，鉤住自針8下垂的針線夏3 之端部，並使該鉤住的針線端部往縫製部（針板i2)之側方 移動；該辅助針線夾具27,係用來將該被針線夾具Η鈞著 往側方移動之針線端部夾在該輔助針線夾具2 7與該針線夾 具21之間並予以保持。再者，於該壓布件10下面，以與 壓布件10之針落槽1()a交叉的方式固定有切線器^，該= 線器22係用來於開始縫製下一塊縫製布時，於該縫製布上 面附近切斷破該針線夾纟21夾著往側方移動的針線端部 Ida。 々2 —方面’為了使線張力能控制自圖外之導筒經固定 ㈣队件17、18及該抬線桿機構5之抬線桿4至針8的針 路徑中針線13之送出，而於該縫幼機臂2之側部如 :於比:::設有：旋轉式針線張力器14;預張力機構15, 认於比该針線張力器i 4 預先施加_旋棘… 方向之上游側，用來 輔助針㈣^ 張力器U之送㈣對之張力；及 給方向之切側構^設於^該預張力機構15更靠針線供 叙爲+ 並此於針線端部（將於後述）之被夾著移 動及切斷處理時將針線W持彈性。 被夹者移 該旋轉式針線張力器14 線13保持繞一圈以μ μ 糸”有.由月匕於外周面部將針 圈以上的旋轉圓盤14Α、用來緊愿該圓盤“Α 1324648 且對该旋轉施加摩擦力矩的彈篑14B、及用來調整該彈簧 14B所產生之圓盤緊壓力的線張力螺帽，其利用與縫製 動作相連之針線供給所產生圓盤14A之旋轉，來對針線U 施加既定之張力。 該預張力機構15係具有：2片張力盤15A15A、用來 使忒等張力盤15A，15A互相緊壓的彈簧15B、及用來調整該 ▼簧15B之緊壓力的旋鈕15C，將針線13穿過2片張力盤 1 5A，15A間，藉此來對針線丨3施加預張力。 该輔助針線保持機構丨6，係與前述之預張力機構丨5同 樣地’其具有：2 #張力^ 16A16A、用來使該等張力盤 WA，16A互相緊壓的彈簧16B、及用來調整該彈簧i6B之緊 f力的旋鈕16C，將針線13穿過2片張力盤16A16A間， 藉此來將針線丨3以彈性的方式夾著。該輔助針線保持機構 16、及用來引導針線13前往該預張力機構15的掛線插銷 19，係以成為一體之方式裝設於導線座2〇，又，該導線座 2〇用來將該預張力機構μ安裝於縫紉機臂2。 此外，於該導線座20裝設有作用切換機構26;該作用 切換機構26具有··能以該預張力機構15與辅助針線保持 機構16之間之大致中央部之支軸23為中心搖動的鬆線板 24、及用來使該鬆線板24往復搖動的氣壓缸託，其能透過 氣壓缸25使鬆線板24搖動，有選擇性地將該鬆線板24之 兩端板部24a，24b嵌入該預張力機構15之2片張力盤 15A，15A及辅助針線保持機構16之2片張力盤i6ai6a間， 藉此來進行平常縫紉之作用狀態與線端處理之作用狀態之 12 1324648 切換’该平常縫劫之作用.能, 16對針線13之彈,_ 轉㈣助針線保持機構 施m 作用狀態，係使預張力機構Η不 施加預張力，並藉輔助針線 傅^不 性。 ’、寺機構16將針線13保持彈 如上述般構成之鋸齒 _ ^ 拄^ ^ 哭、刀機在進仃平常之鋸齒超 :二：使作用切換機構26之鬆線板“以支轴Μ為“ ㈣2及圖3之箭號3方向搖動，而切換成該鬆線板24之Nine, invention description: [Technical field to which the invention pertains] This is a line end processing device for a sawtooth sewing machine. For the line end treatment device of the octagonal sewing machine of the octagonal sewing machine, when the needle stitching is completed, the needle thread is sagged at the end of the needle thread as the needle rises below the sewing cloth. When the needle thread clamp is lost to the side of the = part, the needle thread moving to the side is cut by the thread cutter near the sewing top when the sewing is started. [Prior Art] In the mineral tooth joint sewing machine, if the needle thread is not processed when the seam is finished, and the seam sewing fabric is started to be sewn, the needle thread end from the needle is pulled to the sewing cloth due to the needle falling movement. On the lower side, the stitches are wound during the stitching of the young needles. The end of the needle thread is also followed by the (4) tooth stitches, that is, the needles of the bird's nest shape are poor (four) needles m to prevent the deterioration of the stitch quality of the starting stitches. For example, it is disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. 5,32,67. The end of the needle thread that is drooping from the needle is moved to the side, and the (four) threader is used to cut the needle thread that is grasped and moved to the side near the upper surface of the sewing cloth while sewing the number of stitches on the next piece. In addition, a conventional zigzag sewing machine, for example, disclosed in Japanese Laid-Open Patent Publication No. Hei. No. 21, No. 21, discloses a needle thread tension and a pretension mechanism: the needle thread tensioner has a needle thread that can keep the needle thread supply path in the middle. The outer peripheral surface is at least "circle or more" so that the thread tension is supplied to the needle thread of the same needle to maintain a proper and smooth disk and the frictional moment is applied to the rotation of the disk. a spring; the needle thread tensioner can apply a predetermined tension to the needle thread by the rotation of the disc caused by the needle thread supply (connected to the sewing operation); the pretensioning mechanism is disposed at a needle thread supply direction than the needle thread tension The upstream side is used to apply tension before the needle thread is fed by the needle thread tensioner. It is known from the above-mentioned various prior art that the serrated sewing machine is to be subjected to the wire end treatment (after cutting the cloth below the sewing cloth when the sewing cloth is sewn, the needle end portion of the needle hanging from the needle is clamped by the needle thread clamp) Live and move to the side of the sewing part, and when the sewing is started, the sewing thread will be sent out when the sewing thread is cut at the side of the sewing cloth near the top of the sewing cloth.疋 Directly (that is, the tension set during normal sewing) uses a needle thread tensioner and a pre-tension mechanism to provide the thread tension during flat sewing. In this case, the following problems will occur. Also, the P pre-tension mechanism is used to apply pre-tension to the needle thread to avoid the moon phenomenon (the disc of the needle thread tensioner does not rotate when the flat seam is cut). = When the normal sewing (4) depends on the thickness of the sewing cloth, the softness of the cloth structure, etc., the tension generated by the L-line tensioner, the pre-tension is also adjusted according to the adjusted I: the whole, regardless of the thickness of the sewing cloth, The softness of the cloth organization changed "to maintain the tension of the line at the beginning of the normal sewing." Thus, the conventional pre-tension mechanism, the line tension MA i * 帛 is used to adjust the normal sewing time, 'field, so it can be adjusted within a certain range (so if the pre-tension mechanism is used for the line end with 0 x When handling the needle thread...::" The adjusted pre-tension is controlled by the straight needle thread, and the needle thread caused by the movement of the needle thread brings out the gentleman's Θ 不 unstable 疋 # ie, if the seam is normal When the pre-tension of the pre-tensioning mechanism set for the second consideration is large, when moving, the needle 2 3 = the needle thread clamp clamps the end of the needle thread to the side member: the square pulls out, and the result is that the end of the needle thread is left in the next sewing cloth. The part with poor quality like the cloth is formed like a bird's nest-like oblique recorder, and the pre-tension of the right pre-tension mechanism is small, then the sorcerer is moved to the side of the needle thread to be over-sent. , "°, the length of the needle thread to be cut becomes longer, and the waste of the needle thread increases. [Invention] The present invention has been made in view of the above problems, and an object thereof is to provide a line end processing device for a slitting machine. When sewing normally, regardless of the winter drought, X cloth, tissue softness How to change the softness, etc., can always maintain the appropriate line tension 'Does form a predetermined ore tooth stitch, x, the line end treatment 'needle line out of the amount is stabilized, no longer produces the same quality as the nest In addition, the needle thread waste can be reduced, and the appropriate line end treatment can be performed. In order to achieve the above object, the line end processing device of the recording slit sewing machine of the present invention has the ability to rotate synchronously with the rotation of the spindle machine spindle. a wire lifter mechanism, a cloth spreading mechanism, a needle swing mechanism to form a sawtooth stitch, and having: a needle thread tension benefit, having a needle thread that can be wound into the needle thread supply path of the needle at least one turn or more and maintained a disc and a spring for applying a frictional moment to the rotation of the disc, which can be rotated by applying a predetermined tension to the needle thread by the rotation of the disc supplied by the sewing operation connected to the sewing operation; the pretensioning mechanism is provided at It is more than the needle thread tensioner in the direction of the needle thread supply: Γ2: more: pre-applied tension to the needle thread, so that it does not slip when the needle thread tensioner <appropriate; The end of the needle thread that is suspended from the needle is moved and the end of the needle thread is moved to the side of the sewing portion; and the thread cutter is used to cut the needle end of the side of the quilted portion of the needle thread clamp near the top of the cloth to be sewn. And an auxiliary needle thread holding mechanism capable of maintaining the elasticity of the needle thread in the needle thread supply path from the needle thread supply path on the upstream side of the needle thread supply direction, and is provided with an ordinary (four) a switching mechanism for switching between an action state and an action state of the needle end processing; the normal sewing action state is to release the elastic retention of the needle thread by the auxiliary needle thread holding mechanism, and pre-tension is applied to the needle thread by the pre-tension mechanism; the needle thread end The action state of the partial treatment is such that the pre-tensioning mechanism does not apply the pre-tension and the needle thread holding mechanism is held by the auxiliary needle thread holding mechanism. The thread end processing device of the zigzag sewing machine of the present invention is constructed as described above, Switching the action switching mechanism to the normal (4) action state 'Adjust the needle thread according to the thickness of the sewing cloth, the softness of the cloth structure, etc. The tension of the needle thread is adjusted, and the pre-tension generated by the pre-tension mechanism is adjusted according to the tension. Therefore, the proper thread tension is maintained, and the thickness of the sewing cloth and the softness of the cloth structure can be surely formed well. The established mineral tooth stitch. In addition, after the needle threading fixture clamps the sewing thread after sewing a piece of sewing cloth, the pre-tension mechanism is not applied with the pre-tensioning mechanism by switching the switching mechanism to the action state of the needle thread end processing, and the auxiliary 1324648 needle thread holding mechanism material is used. The line guarantee (four) property, so that the needle thread in the feed line supply path is changed to the needle thread holding force suitable for the line end treatment, and the take-up amount of the thread end processing time line is stabilized. Because &, the needle thread end is prevented from coming off the needle threading jig and remains between the lower-slit sewing cloth and the pressing member to form a nest-like quality-poor stitch, which also prevents the needle thread from being over-supplied and the length of the needle-cutting thread becomes very long. It is a waste of needles to be discarded, so it is not unreasonable to cut the thread tension, and it is often done properly. In the wire end processing device of the zigzag sewing machine of the present invention, as described in the second item of the patent application scope, the pretensioning applied to the needle thread by the pretensioning mechanism and the elastic material force applied to the needle thread by the auxiliary needle thread (4) mechanism can be separately adjusted and borrowed. Therefore, when the sewing is normal, the adjustment range of the thread tension and the adjustment range of the needle thread holding force at the end of the thread can be sufficiently increased, and the thickness and the softness of the tissue are not satisfied. (4) Various (four) cloths can also be used for the material (4) teeth. Sew and line end processing. Further, in the line end processing device of the recording slit sewing machine of the present invention, as described in the fourth item of the patent application scope, the auxiliary needle thread holding mechanism and the pretension mechanism may be separately installed on the sewing machine arm, but Preferably, the auxiliary needle thread holding mechanism and the action switching mechanism 'switching the auxiliary needle thread holding mechanism and the action state of the pretension mechanism are integrally assembled as described in the third paragraph of the patent application. Wire holder (used to attach the pre-tension mechanism to the slit machine arm). In this case, in order to install the pre-tensioning mechanism, the auxiliary needle-holding mechanism and the action switching mechanism can be directly attached to the seaming machine arm by using the existing mounting portion provided in the conventional saw-tooth slotting machine, so that not only does the seam need not be modified. , _ arm 'and the running path of the needle thread (what is the supply path) is not (four) too much change, the supply of the needle thread can be kept smooth and sleek' to play the above-mentioned effects of the present invention. In addition, the knife and the threader can be placed in the vicinity of the top of the sewing cloth, but it is preferably as described in item 5 of the patent application, and is fixed to the 落 , 压Cloth pieces. In particular, if the tangential cutter is fixed under the pressing member as in the case of the sixth item of the patent application, the end portion of the needle thread which causes the quality of the slit product can be completely cut off. Other objects and effects of the present invention will be apparent from the examples described hereinafter. [Complex Mode] Hereinafter, an embodiment of the present invention will be described based on the drawings. Fig. 2 is a perspective view of the entire zigzag sewing machine of the present invention, Fig. 2, (10) an enlarged perspective view of the main part of the machine. The serrated seam sewing machine mechanism 5 (having: a rotating circular plate 3 synchronously rotating with the rotation of the main shaft mounted in the slitting machine arm 2 (the omitting the figure is omitted), and is fixed to the rotating circle The plate 3;, the 抬 的 抬 ~ 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 The needle 2 connected to the main shaft is provided with a needle 8, and a pressing device needle Γ is mounted at the lower end of the pressing rod 9, and a needle placing mechanism for forming a mineral tooth stitch is provided in the slitting machine arm 2 And in the sewing machine, there is a wire trimming device and a lower part of the needle plate 12 for the delivery, so the machine is omitted: the sub-mechanism, etc., which are the specific structures of the week Description. Again, the map! The 30-inch lower guide tube device is broken, and (1) is the lower guide tube pre-tension mechanism. 10 1324648 is provided at the lower end of the sewing machine arm 2 with a needle threader 2l and an auxiliary needle thread loss 27; the needle thread clamp 21' can be driven by the air pressure red outside the figure and supported around the needle threading table 28 (fixed The needle thread clamp shaft 29 of the sewing machine arm 2) is rocked to be hooked to the end of the needle thread 3 of the needle thread drooping from the needle 8 after the needle 8 is lifted under the sewing cloth by the thread trimming device. a portion that moves the hooked end of the needle to the side of the sewing portion (needle plate i2); the auxiliary needle clamp 27 is used to clamp the needle thread end clamped to the side by the needle thread clamp It is held between the auxiliary needle thread clamp 27 and the needle thread clamp 21. Further, under the pressing member 10, a thread cutter ^ is fixed to intersect the needle groove 1 () a of the pressing member 10, and the = 22 is used to start sewing the next sewing cloth. The needle thread end portion Ida which is moved to the side is cut by the needle thread clamp 21 in the vicinity of the upper surface of the sewing cloth. 々 2 - Aspect 'In order to enable the wire tension to control the guide tube from the outside of the figure through the fixed (four) team members 17, 18 and the wire lifter 4 of the wire lifter mechanism 5 to the needle line 13 in the needle path of the needle 8 The side of the slitting machine arm 2 is, for example, a ratio of :::: a rotary needle thread tensioner 14; a pre-tensioning mechanism 15, which is pre-applied to the needle thread tensioner i 4 Side, used to assist the needle (4) ^ Tensioner U (4) to the tension; and the direction of the cutting side of the structure is set to ^ the pre-tension mechanism 15 is further referred to as the needle thread + and this is at the end of the needle thread (will The needle thread W is held elastic when it is sandwiched between the movement and the cutting process. The clipper moves the rotary needle thread tensioner 14 line 13 to keep a circle around μ μ 糸". The rotating disc 14 以上 above the needle loop is used by the moon on the outer peripheral surface, and is used for the disc "Α 1324648 And a magazine 14B for applying a frictional moment to the rotation, and a wire tension nut for adjusting the pressing force of the disk generated by the spring 14B, which is supplied with the needle thread connected to the sewing operation to supply the rotation of the generated disk 14A. Apply a predetermined tension to the needle thread U. The pretension mechanism 15 has two tension discs 15A15A, a spring 15B for pressing the tension discs 15A, 15A against each other, and a knob 15C for adjusting the tight pressure of the spring 15B, and the needle thread 13 is worn. A tension between the two tension discs 15A and 15A is applied to thereby apply a pretension to the needle thread 丨3. The auxiliary needle thread holding mechanism 丨6 is similar to the aforementioned pre-tension mechanism 丨5 in that it has: 2 #tension^16A16A, a spring 16B for pressing the tension disks WA, 16A against each other, and for adjusting The knob 16C of the spring i6B presses the needle thread 13 between the two tension discs 16A16A, thereby sandwiching the needle thread 3 in an elastic manner. The auxiliary needle thread holding mechanism 16 and the threading pin 19 for guiding the needle thread 13 to the pretensioning mechanism 15 are integrally mounted on the lead frame 2, and the lead seat 2 is used to The pretension mechanism μ is attached to the sewing machine arm 2. Further, the lead wire holder 20 is provided with an action switching mechanism 26 which can be pivoted about the support shaft 23 of the substantially central portion between the pretension mechanism 15 and the auxiliary needle thread holding mechanism 16. The loose wire plate 24 and the pneumatic cylinder holder for reciprocating the loose wire plate 24 are capable of rocking the loose wire plate 24 through the pneumatic cylinder 25, and selectively the two end plate portions 24a of the loose wire plate 24. 24b is inserted between the two tension discs 15A, 15A of the pretensioning mechanism 15 and the two tension discs i6ai6a of the auxiliary needle thread holding mechanism 16, thereby switching between the action state of the normal sewing and the action state of the line end processing 12 1324648 'The role of the usual sewing robbing. Yes, 16 pairs of needles 13 bombs, _ turn (four) needle thread holding mechanism to apply m state, so that the pre-tension mechanism Η does not apply pre-tension, and the auxiliary needle thread is not. ', the temple mechanism 16 keeps the needle thread 13 as the above-mentioned sawtooth _ ^ 拄 ^ ^ cry, the knife is in the normal zigzag super: two: the action of the switching mechanism 26 of the loose board "with the fulcrum "(4) 2 and the arrow of Figure 3 is swayed in the direction of 3, and is switched to the loose board 24
板部州嵌入輔助針線保持機構16《2片張力盤 16 A，1 6 A間的平常縫幼之作用狀能益 乍用狀態，藉此，解除輔助針線保 持機構16對針線13之彈性保持，並根據針線張力器14依 縫製布之厚度、布組織之柔軟性等所調整之針線張力來調 整預張力機構15所產生之預張力。如此，能經常保持適當 的線張力’不拘縫製布之厚度、布組織之柔軟性等之改變， 均能確實、良好地形成既定之鋸齒針跡。The board state embeds the auxiliary needle thread holding mechanism 16 "the two sheets of tension discs 16 A, 16 6 A between the normal sewing and the action state, thereby releasing the elastic retention of the needle thread 13 by the auxiliary needle thread holding mechanism 16 The pretension caused by the pretension mechanism 15 is adjusted according to the needle thread tension adjusted by the needle thread tensioner 14 depending on the thickness of the cloth to be sewn, the flexibility of the cloth structure, and the like. In this way, it is possible to form a predetermined zigzag stitch reliably and satisfactorily by maintaining a proper thread tension, a thickness of the non-seamless fabric, and a softness of the cloth structure.
又，當進行線端處理（縫完一塊縫製布，隨著針8之上 升於縫製布之下方藉修線裝置切斷後，切斷自針8下垂的 針線端部1 3a)時，由於使作用切換機構26之鬆線板24以 支軸23為中心往圖2及圖3之箭號b方向搖動，而切換成 鬆線板24之一端板部24a嵌入預張力機構15之2片張力 盤15A，15A間的線端處理之作用狀態，藉此使預張力機構 15不施加預張力，並藉辅助針線保持機構16將針線13保 持彈性。 在此狀態下，針線夾具21啟動，自針8下垂的針線端 13 ^24648 4 13a ’如圖4所示，被針線夹具21釣著往側方移動後， 夾在該針線夾具21與輔助針線夾具27之間。接著，將下 :塊縫製"安置於壓布件1〇之下，…所示開始縫縫 製布w。接著，自經過數針之勒後之圖6之狀態起進一步 進行縫幼時，被針線夾具21鉤著移向側方而夾在該針線失 ^ 21與輔助針線夾具27之間的針線端部13a接觸固定於 :布件1〇下面的切線器22之刀緣，而如圖7所示二： $切斷後之針線端部13a，於下一次之針線夾Μ啟動時， 於針線夾具21與輔助針線夾具27之間之夾持動作解 除，而例如被空氣吸入回收至袋内丟棄。 進行上述之線端處理時，針線供給路徑中之 由於嵌入輔助針線保持機構16之2片張力盤ΜΗ 以適合線端處理的針線保持力保持彈性 將料央 脫離針線夹具21留在下—塊縫製"與壓布件線 形：鳥巢狀般品質差的針跡，亦防止因針 如此，不拘平常縫紉時之線 線浪費夕， 端處理。 線㈣行經常適當的線 此外，上述之實施形態中，係將辅助針 及作用切換機構26 α成-體之m '、持機構16 將預張力機構15安裝於縫劫機臂;)，：:二座2°(用來 線保持機構16及作用切換機構26設、該等辅助針 外之導線座，再安裝於縫初機臂2。裝又於”線座2。以 14 又，上述之實施形態中，係將切線器22固定於壓布件 Μ下面’但亦可固定於壓布件上面。 又，上述之實施形態中，已說明用來鉤住針線端部13a ’十線夾具21 ’該被鉤住之針線端部丨3a在被切線器U切 斷之前一直保持於針線夹具21與辅助針線夾具27之間， 不過，被針線夾具21鉤著往側方移動的針線端部亦可以在 僅被遠針線夾具21切斷之前一直保持著。 再者，上述之實施形態中，已說明將作用切換機構Μ 之鬆線板24之兩端板部24a，24b形成為一體，不過，亦可 乂將J等兩端板部24a，24b作成獨立個體，可調整嵌入2 片張力盤15A，15A及16A，16A間之深度，藉此亦能對預張 力及針線保持力作微調整。 【圖式簡單說明】 圖1 ’係本發明之鋸齒縫縫紉機全體之立體圖。 圖2 ’係該鑛齒縫縫紉機之要部立體圖。 圖3 ’係該鑛齒縫縫紉機之要部放大立體圖。 圖4 ’係用來說明利用該鋸齒縫縫紉機之針線端部之處 王里狀況中初始作用狀態的要部立體圖。 圖5’係用來說明該針線端部之處理狀況中之第2作用 狀態的要部立體圖。 圖6 ’係用來說明該針線端部之處理狀況中之第3作用 狀態的要部立體圖。 圖7’係用來說明該針線端部之處理狀況中之最終作用 狀態的要部立體圖。 15 1324648 【主要元件符號說明】 1 鋸齒縫縫紉機 2 縫紉機臂 2 A 凹狀開口部 3 旋轉圓板 4 抬線桿 5 抬線桿機構 6 開閉式護板 7 針架 8 針 9 壓桿 10 壓布件 10a 針落槽 11 縫紉 機 床台 12 針板 13 針線 13a 針線端 部 14 旋轉 式針線 14A 旋轉 圓 盤 14B 彈簧 14C 線張 力 螺帽 15 預張 力 機構 15A 張力 盤 15B 彈簀 1324648 1 5 C旋鈕 16 輔助針線保持機構 16A張力盤 16B彈篑 1 6 C旋鈕 17 ' 18 固定式導線件 19 掛線插銷 20 導線座 21 針線夾具 22 切線器 23 支軸 24 鬆線板 24a、24b端板部 25 氣壓缸 26 作用切換機構 27 輔助針線夾具 28 針線夾具台 29 針線夾具軸 30 下導筒裝置 31 下導筒預張力機構 W 縫製布Further, when the thread end treatment is performed (sewing a piece of the sewn fabric, the needle end portion 13a which is suspended from the needle 8 is cut off as the needle 8 is raised below the sewing fabric, and the needle end portion 13a is suspended from the needle 8) The loosening plate 24 of the switching mechanism 26 is pivoted in the direction of the arrow b of FIGS. 2 and 3 with the support shaft 23 as the center, and is switched to the two tension plates 15A of the pretension mechanism 15 by one end plate portion 24a of the loose wire plate 24. The action state of the wire end processing between 15A, whereby the pretension mechanism 15 does not apply the pretension, and the auxiliary needle thread holding mechanism 16 keeps the needle thread 13 elastic. In this state, the needle thread clamp 21 is activated, and the needle thread end 13 ^ 24648 4 13a ' from the needle 8 is suspended as shown in Fig. 4, and is moved by the needle thread clamp 21 to the side, and then clamped to the needle thread clamp 21 and the auxiliary needle thread. Between the clamps 27. Next, the lower: block sewing " is placed under the pressing member 1〇, ... begins to sew the cloth w. Then, when the sewing is further performed from the state of Fig. 6 after the number of stitches, the needle thread clamp 21 is hooked and moved to the side and the needle thread end portion 13a between the needle thread loss 21 and the auxiliary needle thread clamp 27 is sandwiched. The contact is fixed to: the edge of the thread cutter 22 below the cloth 1 ,, and as shown in FIG. 2: the needle thread end 13a after cutting, at the start of the next needle thread clamp, the needle thread clamp 21 and the auxiliary The pinching operation between the needle thread clamps 27 is released, and is, for example, taken up by air and collected and discarded in the bag. When the above-described line end processing is performed, the two pieces of tension discs inserted into the auxiliary needle thread holding mechanism 16 in the needle thread supply path are kept elastic by the needle thread holding force suitable for the thread end treatment, and the center of the material is released from the needle thread clamp 21 to be left under the block sewing " ; and the line shape of the pressing cloth: the needle-like quality of the stitches is also prevented, because the needle is so unconstrained, the thread is wasted at the time of sewing, and the end processing. Further, in the above embodiment, the auxiliary needle and the action switching mechanism 26α are formed into a body m', and the holding mechanism 16 mounts the pretension mechanism 15 to the sewing machine arm;), :: Two seats 2° (for the wire holding mechanism 16 and the action switching mechanism 26, the wire holders outside the auxiliary pins, and then mounted on the sewing machine arm 2. The device is again installed in the wire holder 2. To 14 again, the above In the embodiment, the thread cutter 22 is fixed to the lower side of the pressing member, but may be fixed to the pressing member. Further, in the above embodiment, the ten-wire clamp 21 for hooking the needle end portion 13a has been described. 'The hooked needle end portion a3a is held between the needle thread clamp 21 and the auxiliary needle thread clamp 27 until it is cut by the thread cutter U, but the needle thread end portion which is hooked to the side by the needle thread clamp 21 is also It can be held until it is cut only by the distal needle clamp 21. Further, in the above-described embodiment, the both end plate portions 24a and 24b of the loosening plate 24 of the action switching mechanism 形成 are integrally formed. It is also possible to make J and other end plate portions 24a, 24b as independent individuals, which can be adjusted The depth between the two tension discs 15A, 15A and 16A, 16A is embedded, whereby the pre-tension and the needle thread holding force can be finely adjusted. [Fig. 1] Fig. 1 is a perspective view of the entire zigzag sewing machine of the present invention. Fig. 2 ' is a perspective view of the main part of the ore sewing machine. Fig. 3 ' is an enlarged perspective view of the main part of the ore sewing machine. Fig. 4 ' is used to illustrate the situation of the needle end of the sewing machine using the zigzag sewing machine. Fig. 5' is a perspective view of an essential part for explaining a second action state in the processing state of the needle thread end portion. Fig. 6' is a view for explaining the processing state of the needle thread end portion. Fig. 7' is a perspective view of an essential part for explaining the final action state in the processing state of the needle thread end portion. 15 1324648 [Description of main component symbols] 1 Serrated sewing machine 2 Sewing machine arm 2 A Concave opening 3 Rotating disc 4 Lifting rod 5 Lifting rod mechanism 6 Opening and closing guard 7 Needle holder 8 Needle 9 Pressing rod 10 Pressing piece 10a Needle groove 11 Sewing machine table 12 Needle plate 13 Needle thread 13a Needle end 14 Rotating needle thread 14A Rotating disc 14B Spring 14C Wire tension nut 15 Pretension mechanism 15A Tension disc 15B magazine 1324648 1 5 C knob 16 Auxiliary needle thread retention mechanism 16A Tension disc 16B magazine 1 6 C knob 17 ' 18 Fixed wire fittings 19 Threading pin 20 Wire socket 21 Needle wire clamp 22 Thread cutter 23 Support shaft 24 Song plate 24a, 24b End plate portion 25 Pneumatic cylinder 26 Actuating mechanism 27 Auxiliary needle clamp 28 Needle clamp table 29 Needle clamp Shaft 30 lower guide tube device 31 lower guide cylinder pre-tension mechanism W sewing cloth