TWI410544B - Box Machine Double Line Chain Stitch Sewing Machine - Google Patents
Box Machine Double Line Chain Stitch Sewing Machine Download PDFInfo
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- TWI410544B TWI410544B TW99106402A TW99106402A TWI410544B TW I410544 B TWI410544 B TW I410544B TW 99106402 A TW99106402 A TW 99106402A TW 99106402 A TW99106402 A TW 99106402A TW I410544 B TWI410544 B TW I410544B
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Abstract
Description
本發明有關一種具有箱形縫紉機台的雙線鏈式線跡(二重環縫)縫紉機。The present invention relates to a two-wire chain stitch (double loop stitch) sewing machine having a box-shaped sewing machine table.
箱形機台雙線鏈式線跡縫紉機是工業用縫紉機的一種形式。該縫紉機具有箱形縫紉機台,箱形縫紉機台在針板的兩側具有平坦的上表面。縫紉機台的平坦的上表面,在針板的兩側支持縫製布料,從而減輕了作業者扶住縫製中的布料的勞動。因此,箱形機台雙線鏈式線跡縫紉機很適用於縫製大塊的縫製布料。一部分箱形機台雙線鏈式線跡縫紉機,在比針板更外端側,縫紉機台為具有平坦上表面的筒形。這種縫紉機稱作中筒式箱形機台雙線鏈式線跡縫紉機。The box-shaped machine double-chain chain stitch sewing machine is a form of industrial sewing machine. The sewing machine has a box-shaped sewing machine table having a flat upper surface on both sides of the needle plate. The flat upper surface of the sewing machine supports the sewing of the fabric on both sides of the needle plate, thereby reducing the labor for the operator to hold the cloth in the sewing. Therefore, the box-type machine double-line chain stitch sewing machine is very suitable for sewing large pieces of sewing fabric. A part of the box-shaped machine double-chain chain stitch sewing machine has a cylindrical shape with a flat upper surface on the outer end side than the needle plate. This type of sewing machine is called a two-wire chain stitch sewing machine for the middle cylinder type box machine.
作為工業用縫紉機的另一種形式,有曲腕式平縫縫紉機。這種縫紉機,在縫紉機架的下部具有向一方向延伸的窄幅筒形縫紉機台,在縫紉機架的上部具有向與縫紉機台不同方向延伸的縫紉機臂。曲腕式平縫縫紉機例如用於內褲(Brief)、短褲(Shorts)等的襠部以下部位的合縫。這種合縫,將要縫合的兩片布料的邊緣以預定的寬度上下重疊,送到縫紉機臺上的針板與下降到該針板上的壓腳之間而進行。As another form of industrial sewing machine, there is a curved wrist flat sewing machine. This sewing machine has a narrow cylindrical sewing machine table extending in one direction at a lower portion of the sewing frame, and a sewing machine arm extending in a direction different from the sewing machine table at the upper portion of the sewing frame. The curved wrist flat sewing machine is used, for example, for a joint of a lower portion of a crotch portion such as a brief or a shorts. This splicing is performed by overlapping the edges of the two pieces of fabric to be sewn up and down by a predetermined width, and feeding them to the needle board on the sewing machine table and down to the presser foot of the needle board.
日本特公平7-57272號公報(已審定日本專利公告No. 7-57272(1995))中所記載的曲腕式平縫縫紉機,具有設置了刀裝置的特殊的壓腳。該壓腳,具有壓腳本體和2根壓爪。壓腳本體在針板上進行下降,與該針板之間夾持縫製布料。2根壓爪在壓腳本體的前方互相平行地延伸。刀裝置包括安裝在一邊壓爪中的固定刀(Fixed Knife)和安裝在另一邊壓爪中的可動刀(Movable Knife)。固定刀與可動刀,在突出在2根壓爪之間的端部具有切刃。切刃在落針位置(針下降的位置)之前相對置。The curved wrist-type flat sewing machine described in Japanese Laid-Open Patent Publication No. Hei 7-57272 (1995) has a special presser foot provided with a knife device. The presser foot has a pressure script body and two pressure claws. The script body is lowered on the needle plate, and the sewing cloth is held between the needle plate. The two jaws extend parallel to each other in front of the script body. The knife device includes a fixed knife (Fixed Knife) mounted on one side of the jaws and a movable knife (Movable Knife) mounted on the other side of the jaws. The fixed knife and the movable knife have a cutting edge at an end projecting between the two jaws. The cutting edge is opposed to each other before the needle drop position (the position where the needle is lowered).
可動刀通過來自縫紉機臂內部的傳動而進行往返運動,與固定刀擦接。可動刀安裝為一部分突出到壓爪的外側,該突出部分與來自縫紉機臂內部的傳動機構連接。The movable knife reciprocates by a transmission from the inside of the sewing machine arm, and is wiped with the fixed knife. The movable blade is mounted to partially protrude to the outside of the jaw, which is connected to a transmission mechanism from the inside of the sewing machine arm.
作業者將要縫合的縫製布料的邊緣對合起來,在立在針板上的狀態下送到2個壓爪之間。縫製布料的邊緣到達固定刀與可動刀的擦接位置而被切齊。壓腳本體將切齊了的布料邊緣上下重疊傳送到落針位置上。使用該縫紉機的作業者,不需要手工作業來進行重疊寬度的調整,能夠容易地以大致一定的縫合寬度進行合縫。The operator puts the edge of the sewn fabric to be sewn together and feeds it between the two jaws while standing on the needle board. The edge of the sewn fabric is aligned to the wiping position of the fixed knife and the movable blade. Pressing the script body conveys the edges of the cut fabric up and down to the needle drop position. The operator using the sewing machine can perform the merging with a substantially constant stitch width without requiring manual work to adjust the overlap width.
這種合縫也在其他形式的縫紉機中實施。箱形機台雙線鏈式線跡縫紉機中,如前所述,能夠在縫紉機臺上穩定地支持縫製布料,因此以前一般由作業者的手工作業在針板的前方進行重疊寬度的調整,實施合縫。所以存在因作業者的熟練程度不同,完成狀態有差別的問題。This seam is also implemented in other forms of sewing machines. In the double-chain chain stitch sewing machine of the box-shaped machine, as described above, the sewing cloth can be stably supported on the sewing machine table. Therefore, the overlap width is adjusted in front of the needle plate by the manual work of the operator. Joint seam. Therefore, there is a problem that the completion state differs depending on the skill level of the operator.
該問題通過安裝曲腕式平縫縫紉機中具備的帶刀裝置的壓腳能夠解決。但是,箱形機台雙線鏈式線跡縫紉機,如前所述,為支援大塊的縫製布料,縫紉機台具有在針板的兩側擴展的平坦上表面。而曲腕式平縫縫紉機中具備的帶刀裝置的壓腳,如前所述,具有在壓腳的一側伸出的可動刀,該伸出部分與傳動機構連接。因此,在將該壓腳應用於箱形機台雙線鏈式線跡縫紉機時,可動刀的傳動機構在靠近箱形機台的上表面處進行動作。This problem can be solved by installing a presser foot with a knife device provided in a curved wrist flat sewing machine. However, as described above, in order to support a large piece of sewn fabric, the sewing machine has a flat upper surface that spreads on both sides of the needle plate. The presser foot of the knife-equipped device provided in the curved wrist flat sewing machine has a movable knife projecting on one side of the presser foot as described above, and the projecting portion is connected to the transmission mechanism. Therefore, when the presser foot is applied to the double-chain chain stitch sewing machine of the box-shaped machine, the transmission mechanism of the movable knife operates near the upper surface of the box-shaped machine.
而縫製作業中的作業者,一般來說,在壓腳兩側附近用手壓住縫製布料,向著傳送方向推壓,由此來輔助縫製布料的傳送。這種傳送輔助,在箱形機台雙線鏈式線跡縫紉機所處理的大塊縫製布料的縫製作業中特別重要。In the sewing operation, generally, the sewing fabric is pressed by hand in the vicinity of both sides of the presser foot, and is pressed in the conveying direction, thereby assisting the conveyance of the sewing fabric. This transfer assist is particularly important in the sewing operation of large sewn fabrics handled by the double-chain stitch sewing machine of the box-shaped machine.
因此,在箱形機台雙線鏈式線跡縫紉機中採用帶刀裝置的壓腳時,壓腳的一側,可動刀的傳動機構進行動作,壓腳的另一側,固定刀的一部分伸出,因此很難實施前述的傳送輔助,有可能給縫製作業帶來障礙。Therefore, when the presser foot with the knife device is used in the double-chain chain stitch sewing machine of the box-shaped machine, one side of the presser foot, the transmission mechanism of the movable knife operates, and the other side of the presser foot, a part of the fixed knife protrudes Therefore, it is difficult to carry out the aforementioned transfer assistance, which may cause an obstacle to the sewing operation.
另一方面,作業者也可以使用曲腕式平縫縫紉機來進行大塊縫製布料的合縫。但是,曲腕式平縫縫紉機具有窄徑筒形縫紉機台,在進行大塊的縫製布料的合縫時,縫紉機台對縫製布料的支持不夠,很難實施良好的縫製作業。On the other hand, the operator can also use the curved wrist flat sewing machine to perform the joint of the large sewn fabric. However, the curved wrist flat sewing machine has a narrow-diameter cylindrical sewing machine table, and when the large-sized sewing cloth is joined, the sewing machine supports insufficient sewing cloth, and it is difficult to perform a good sewing operation.
本發明是鑒於上述狀況而做出的,目的是提供一種箱形機台雙線鏈式線跡縫紉機,具備帶有切齊縫製布料的邊緣的刀裝置的壓腳,從而無論作業者的熟練程度如何都能夠實施狀態良好的合縫,並且不會對壓腳兩側作業者所實施的傳送輔助作業帶來障礙。The present invention has been made in view of the above circumstances, and an object thereof is to provide a box-shaped machine double-chain chain stitch sewing machine having a presser foot with a knife device that cuts the edge of a cloth to be sewn, so that the operator's proficiency It is possible to implement a joint that is in good condition and does not hinder the transfer assisting work performed by the operator on both sides of the presser foot.
本發明的箱形機台雙線鏈式線跡縫紉機,包括:具有用來在針板的寬度方向兩側置載縫製布料的平坦的上表面的箱形縫紉機台、被該縫紉機臺上方的縫紉機臂所支持而垂下的針桿與壓桿、分別安裝在該針桿與壓桿的下端的針和壓腳、以及設置在上述針板下方的上述縫紉機台內部的傳送機構與彎針,上述壓腳與上述壓桿一起下降,壓到上述針板上,被上述傳送機構施加了上述針板的長邊方向的傳送的縫製布料,由與上述針桿共同上下運動的上述針,以及以與上述傳送方向平行的支軸為中心沿上述針板的下表面擺動的上述彎針進行縫製,其中,上述壓腳還具有刀裝置,該刀裝置具有沿著上述針板的上表面在與上述傳送方向交叉的方向往返運動的可動刀,以及與該可動刀擦接的固定刀。The box-shaped machine double-chain chain stitch sewing machine of the present invention comprises: a box-shaped sewing machine table having a flat upper surface for mounting a sewing cloth on both sides in the width direction of the needle plate, and a sewing machine above the sewing machine table a needle bar and a presser bar supported by the arm, a needle and a presser foot respectively mounted on the lower end of the needle bar and the press bar, and a conveying mechanism and a looper disposed inside the sewing machine table below the needle plate, the pressure The foot is lowered together with the pressing rod, pressed against the needle plate, and the conveying fabric is transported by the conveying mechanism in the longitudinal direction of the needle plate, and the needle is moved up and down together with the needle bar, and The fulcrum in which the conveying direction is parallel is centered on the curved needle that oscillates along the lower surface of the needle plate, wherein the presser foot further has a knife device having an upper surface along the needle plate in the conveying direction A movable knife that reciprocates in a cross direction, and a fixed knife that is wiped with the movable knife.
本發明中,在針板上壓住縫製布料的壓腳中,設置了具有固定刀和可動刀的刀裝置,因此能夠以良好的品質實施大塊縫製布料的合縫,而不會依賴於作業者的熟練程度。In the present invention, a press device having a fixed blade and a movable blade is provided in the presser foot for pressing the sewn fabric on the needle plate, so that the joint of the large sewn fabric can be performed with good quality without depending on the work. Proficiency of the person.
並且,本發明的箱形機台雙線鏈式線跡縫紉機,其特徵在於,上述縫紉機台的上表面,構成為在上述針板的寬度方向的一側或兩側低於該針板的上表面。Further, the box-shaped machine double-chain chain stitch sewing machine according to the present invention is characterized in that the upper surface of the sewing machine table is configured to be lower than the needle plate on one side or both sides in the width direction of the needle plate. surface.
本發明中,箱形機台的上表面在針板的一側或兩側比針板的上表面低,確保箱形機台的上表面與伸出到壓腳外側的可動刀的伸出部分之間的縫隙。作業者能夠利用該縫隙在壓腳附近用手來輔助縫製布料的傳送,從而能夠良好地實施大塊的縫製布料的合縫。In the present invention, the upper surface of the box-shaped machine table is lower than the upper surface of the needle plate on one side or both sides of the needle plate, and the upper surface of the box-shaped machine table and the protruding portion of the movable knife protruding to the outside of the presser foot are ensured. The gap between them. The operator can use the slit to assist the conveyance of the sewn fabric by hand in the vicinity of the presser foot, so that the joint of the large sewn fabric can be satisfactorily performed.
並且,本發明的箱形機台雙線鏈式線跡縫紉機,其特徵在於,上述縫紉機台的上表面與上述針板的上表面,在上述針板的兩側通過避開與上述彎針的擺動區域之間的干涉而設置的階梯部相連續。Further, the box-shaped machine double-chain chain stitch sewing machine according to the present invention is characterized in that the upper surface of the sewing machine table and the upper surface of the needle plate are separated from the curved needle on both sides of the needle plate. The step portions provided by the interference between the swing regions are continuous.
本發明中,針板的上表面與箱形機台的上表面通過階梯部而平滑地連續。階梯部避開彎針的擺動區域而設置,從而不會阻礙箱形機台內部進行的彎針的動作,能夠穩定地支持大塊的縫製布料,執行合縫。In the present invention, the upper surface of the needle plate and the upper surface of the box-shaped machine are smoothly continuous by the step portion. Since the stepped portion is provided to avoid the swinging region of the looper, the operation of the looper performed inside the box-shaped machine is not hindered, and the large-sized sewing fabric can be stably supported, and the joint is performed.
並且,本發明的箱形機台雙線鏈式線跡縫紉機,其特徵在於具有:設置在上述縫紉機臂內部的刀振軸,以及將該刀振軸的反復轉動傳遞給上述可動刀,使該可動刀進行往返運動的傳動機構。Further, the box-shaped machine double-chain chain stitch sewing machine according to the present invention includes: a blade vibration shaft provided inside the sewing machine arm, and transmitting the repeated rotation of the blade vibration shaft to the movable blade. The movable mechanism of the movable knife for reciprocating motion.
本發明中,縫紉機臂內部的刀振軸的反復轉動通過傳動機構傳遞給可動刀。設置在壓腳中的可動刀能夠可靠地進行往返運動,將縫製布料的邊緣切齊,實施良好的合縫。In the present invention, the repeated rotation of the blade shaft inside the sewing machine arm is transmitted to the movable blade through the transmission mechanism. The movable knife provided in the presser foot can reliably reciprocate, and the edges of the sewn fabric are cut to achieve a good joint.
並且,本發明的箱形機台雙線鏈式線跡縫紉機,其特徵在於,上述傳動機構具有:傳動筒,在上下方向上貫通上述縫紉機臂的下部並被支持,內嵌保持有支持上述壓桿的下部的支持襯套;以及傳動連接件,向位於上述縫紉機臂內部的上述傳動筒的上部傳遞上述刀振軸的反復轉動,在伸出到上述縫紉機臂的外部的上述傳動筒的下部,設有上述可動刀的安裝座。Further, the box-shaped machine double-chain chain stitch sewing machine according to the present invention is characterized in that the transmission mechanism includes a drive cylinder that penetrates and supports the lower portion of the sewing machine arm in the up-and-down direction, and the in-line retaining and supporting the pressure a support bushing at a lower portion of the lever; and a transmission connecting member that transmits the repeated rotation of the blade shaft to an upper portion of the drive cylinder located inside the sewing machine arm, at a lower portion of the drive cylinder that protrudes outside the sewing machine arm, A mount for the above movable knife is provided.
本發明中,將刀振軸的反復轉動傳遞給可動刀的傳動機構,具有兼用作壓桿的支持部件的傳動筒,能夠通過簡單的結構來實現從縫紉機臂內部的刀振軸向縫紉機臂外部的可動刀的傳動。In the present invention, the repetitive rotation of the blade vibration shaft is transmitted to the transmission mechanism of the movable blade, and the transmission cylinder which also serves as the support member of the pressure bar can realize the external operation of the sewing machine arm from the axial direction of the sewing machine arm by a simple structure. The drive of the movable knife.
通過對照附圖閱讀以下敍述的詳細說明,將會更加理解本發明的目的以及創新特徵。The objects and innovative features of the present invention will become more apparent from the written description of the appended claims.
下面對照附圖對本發明的實施形態進行詳細說明。圖1為表示本發明的箱形機台雙線鏈式線跡縫紉機的外觀的立體圖。以下的說明中使用的“上、下和左、右”,為圖1中的“上、下和左、右”。另外,以下的說明中,將圖1的紙面外側稱作“前”,圖1的紙面裏側稱作“後”。Embodiments of the present invention will be described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the appearance of a double-chain chain stitch sewing machine for a box-shaped machine of the present invention. The "up, down, left, and right" used in the following description are "up, down, left, and right" in Fig. 1. In the following description, the outer side of the paper surface of FIG. 1 is referred to as "front", and the inner side of the paper surface of FIG. 1 is referred to as "rear".
圖1所示的箱形機台雙線鏈式線跡縫紉機,具有縫紉機台1、腳柱2、以及縫紉機臂3。縫紉機台1為箱形,具有平坦的上表面20。腳柱2大致垂直地豎立在縫紉機台1的右側端部。縫紉機臂3從腳柱2的上端部向左延伸,與縫紉機台1的上表面20平行。縫紉機臂3的末端部支持有針桿30與壓桿31。The box-shaped machine double-chain chain stitch sewing machine shown in Fig. 1 has a sewing machine table 1, a foot column 2, and a sewing machine arm 3. The sewing machine table 1 has a box shape and has a flat upper surface 20. The leg 2 is erected substantially vertically at the right end of the sewing machine table 1. The sewing machine arm 3 extends leftward from the upper end portion of the leg 2 and is parallel to the upper surface 20 of the sewing machine table 1. The needle end 30 and the pressure bar 31 are supported at the distal end portion of the sewing machine arm 3.
縫紉機臂3的內部支持有能夠上下運動的針桿30。針桿30隨著設置在縫紉機臂3內部的針桿驅動機構(圖示省略)的動作而上下運動。針桿30向著縫紉機臂3的下方伸出。針桿30的伸出端部,通過針固定器40安裝有多根針4,4…。多根針4,4…隨著針桿30的上下運動而上升下降。The inside of the sewing machine arm 3 supports a needle bar 30 that can move up and down. The needle bar 30 moves up and down in accordance with the operation of the needle bar driving mechanism (not shown) provided inside the sewing machine arm 3. The needle bar 30 projects downward from the sewing machine arm 3. At the projecting end of the needle bar 30, a plurality of needles 4, 4, ... are mounted by the needle holder 40. The plurality of needles 4, 4... ascend and descend with the up and down movement of the needle bar 30.
壓桿31在針桿30的後方向縫紉機臂3的下方伸出,壓桿31的伸出端部安裝有壓腳5。壓腳5具有後述的結構。壓桿31被縫紉機臂3的內部支持,能夠上下運動。壓桿31通過作業者的操作而在上下方向上移動,壓腳5隨著壓桿31的上下運動而上升下降。The press lever 31 projects below the sewing machine arm 3 in the rear direction of the needle bar 30, and the presser foot 5 is attached to the extended end portion of the press lever 31. The presser foot 5 has a structure to be described later. The press lever 31 is supported by the inside of the sewing machine arm 3 and is movable up and down. The presser bar 31 moves in the up and down direction by the operation of the operator, and the presser foot 5 ascends and descends as the presser bar 31 moves up and down.
縫紉機台1的上表面20中,與針4,4…以及壓腳5的下降位置相對應地安裝有針板10。圖2為針板10的安裝狀態的說明圖。針板10如圖2所示,為在前後方向上較長的矩形平板,通過多個(只圖示出2個)止動螺絲10a,10a…可拆卸地安裝在安裝台11上,安裝台11固定在縫紉機台1上。針板10的前邊緣中,在寬度方向(左右方向)的中央處形成有矩形的缺口部12。In the upper surface 20 of the sewing machine table 1, a needle plate 10 is attached corresponding to the lowered positions of the needles 4, 4, ... and the presser foot 5. FIG. 2 is an explanatory view showing a state in which the needle plate 10 is mounted. As shown in FIG. 2, the needle plate 10 is a rectangular flat plate which is long in the front-rear direction, and is detachably mounted on the mounting table 11 by a plurality of (only two) fixing screws 10a, 10a, ... 11 is fixed to the sewing machine table 1. In the front edge of the needle plate 10, a rectangular notch portion 12 is formed at the center in the width direction (left-right direction).
針板安裝台11中,在與針板10的缺口部12相匹配的位置上設有凹部12a。凹部12a比缺口12寬,與引導安裝片14相卡和。凹部12a的底面設有螺孔,通過將與該螺孔相螺合的螺絲15從下向上壓入到針板10的底面,而將引導安裝片14固定在缺口部12的下方。引導安裝片14具有前後排列的2個螺孔。通過與上述螺孔分別螺合的止動螺絲17,17,將布料引導16固定在引導安裝片14上。布料引導16是平板狀的部件,被配置為從止動螺絲17,17的固定位置向後延伸,在針板10的上表面的寬度方向中央處相對於該上表面垂直立起。In the needle plate mounting table 11, a recess 12a is provided at a position matching the notch portion 12 of the needle plate 10. The recess 12a is wider than the notch 12 and is engaged with the guide mounting piece 14. The bottom surface of the recessed portion 12a is provided with a screw hole, and the guide mounting piece 14 is fixed below the notch portion 12 by pressing the screw 15 screwed to the screw hole from the bottom to the bottom surface of the needle plate 10. The guide mounting piece 14 has two screw holes arranged in front and rear. The cloth guide 16 is fixed to the guide mounting piece 14 by the stopper screws 17, 17 which are respectively screwed to the above-mentioned screw holes. The cloth guide 16 is a flat member and is disposed to extend rearward from a fixed position of the set screws 17 and 17, and stands upright with respect to the upper surface at the center in the width direction of the upper surface of the needle plate 10.
針板10中形成有送齒孔13,13…。送齒孔13,13…是長邊位於前後方向上的窄矩形開口,在針板10的左右兩側分開,各設有2個。送齒孔13,13…設置為用來使得在縫紉機台1內部運動的送齒伸出。送齒具有公知的結構,即通過縫紉機台1內部的傳送機構的動作,進行前後運動與上下運動組合而成的長圓形運動。送齒在向上運動時經過各個送齒孔13,13…伸出到針板10的上方向後移動,之後向下運動向前移動,如此進行重複運動。通過該動作,向針板10上的縫製布料(圖示省略)施加向後的間歇性傳送。The pinholes 10 are formed in the needle plate 10. The feed holes 13, 13 are narrow rectangular openings whose long sides are located in the front-rear direction, and are separated on the left and right sides of the needle plate 10, and are provided in each of two. The feed holes 13, 13 are provided to extend the feed teeth that move inside the sewing machine table 1. The feed tooth has a well-known structure, that is, an oblong motion in which the forward and backward movement and the up and down movement are combined by the movement of the conveying mechanism inside the sewing machine table 1. The feed tooth moves in the upward direction through the respective feed holes 13, 13, ... and then moves to the upper direction of the needle plate 10, and then moves downward to move forward, thus performing the repetitive motion. By this operation, intermittently intermittent conveyance is applied to the sewing cloth (not shown) on the needle board 10.
圖2中一併顯示出了壓腳5與針4,4…。壓腳5在因壓桿31的向下運動而下降時,如圖所示,重疊在針板10上,與該針板10之間夾住縫製布料。壓腳5具有固定在壓桿31的下端的壓腳本體50,和2個壓爪51、52。壓爪51、52在壓腳本體50的前部的左右兩側向前方平行地延伸。壓爪51、52在壓腳本體50的前方隔開適當的縫隙對置,形成縫製布料的導入通道。Figure 2 shows the presser foot 5 and the needles 4, 4... together. When the presser foot 5 is lowered by the downward movement of the presser bar 31, as shown in the drawing, it is superposed on the needle plate 10, and the sewing fabric is sandwiched between the needle plate 10. The presser foot 5 has a presser body 50 fixed to the lower end of the presser bar 31, and two press jaws 51, 52. The claws 51 and 52 extend in parallel to the front side on the left and right sides of the front portion of the script body 50. The pressure claws 51 and 52 are opposed to each other by an appropriate slit in front of the script body 50 to form an introduction passage for sewing the cloth.
如上所述的壓腳5中,裝備有包括固定刀6a和可動刀6b的刀裝置。固定刀6a是固定在左側的壓爪51上的板狀的刀。固定刀6a***在壓爪51中設置的矩形的保持孔53中並固定。圖2中示出了伸出在壓爪51外側的固定刀6a的根部。固定刀6a在向壓爪51、52間的上述導入通道的內部伸出的末端,設有刀刃。The presser foot 5 as described above is equipped with a knife device including a fixed blade 6a and a movable blade 6b. The fixed blade 6a is a plate-shaped blade that is fixed to the left pressing jaw 51. The fixed blade 6a is inserted into and fixed in a rectangular holding hole 53 provided in the pressing claw 51. The root of the fixed knife 6a projecting outside the jaw 51 is shown in FIG. The fixed blade 6a is provided with a blade at an end projecting toward the inside of the introduction passage between the jaws 51, 52.
可動刀6b***在右側的壓爪52中設置的保持孔54中而被保持。可動刀6b通過保持孔54的引導而能夠在左右方向上移動。可動刀6b在向壓爪51、52間的上述導入通道的內部伸出的末端,設有刀刃。可動刀6b的根部以適當長度伸出到壓爪52的外側,固定在安裝座74下端的刀架75上。安裝座74與刀架75構成後述的傳動機構7的一部分。可動刀6b隨著經由刀傳動機構7傳來的刀振軸9(參照圖4)的反復轉動,而在左右方向上往返運動。進行往返運動的可動刀6b的末端的刀刃,在上述導入通道內與固定刀6a的刀刃擦接。The movable blade 6b is inserted into the holding hole 54 provided in the right claw 52 to be held. The movable blade 6b is movable in the left-right direction by the guidance of the holding hole 54. The movable blade 6b is provided with a blade at an end projecting toward the inside of the introduction passage between the jaws 51, 52. The root of the movable blade 6b projects to the outside of the jaw 52 with an appropriate length, and is fixed to the holder 75 at the lower end of the mount 74. The mount 74 and the holder 75 constitute a part of the transmission mechanism 7 which will be described later. The movable blade 6b reciprocates in the left-right direction in accordance with the repeated rotation of the blade axis 9 (see FIG. 4) transmitted through the blade transmission mechanism 7. The blade at the end of the movable blade 6b that performs the reciprocating motion is wiped in contact with the blade of the fixed blade 6a in the introduction passage.
針4,4…在左右壓爪51、52的後方進行上升下降。下降的針4,4…從設置在壓腳本體50中的針孔(圖示省略),以及設置在針板10上的針孔10b、10b(參照圖3)中通過而到達縫紉機台1的內部。壓爪51、52間的導入通道中,2片縫製布料以邊緣對合,垂直豎立在針板10上的狀態被導入。固定刀6a與可動刀6b將到達擦接位置的縫製布料的邊緣切齊。切齊了的布料通過壓腳本體50的作用而上下重疊,傳送到針4,4…的下降位置,進行縫合。The needles 4, 4, ... are raised and lowered behind the left and right pressing jaws 51, 52. The lowered needles 4, 4 are passed from the pinholes (not shown) provided in the presser body 50 and the pinholes 10b and 10b (refer to FIG. 3) provided on the needle plate 10 to reach the sewing machine table 1. internal. Among the introduction passages between the jaws 51, 52, the two pieces of the sewn fabric are introduced in a state in which the edges are aligned and vertically erected on the needle board 10. The fixed blade 6a and the movable blade 6b are aligned with the edge of the sewing cloth that reaches the wiping position. The cut fabric is vertically overlapped by the action of the script body 50, and is conveyed to the lowered position of the needles 4, 4, ... and stitched.
上述布料引導16,到達壓爪51、52間的導入通道的內部,發揮維持該導入通道內的縫製布料的直立姿勢的作用。通過旋鬆螺絲15,能夠與引導安裝片14一起調節布料引導16的位置。作業者通過對布料引導16的位置進行調節,能夠調整縫製布料的導入姿勢,使得由固定刀6a與可動刀6b進行的切齊能夠良好地進行。The cloth guide 16 reaches the inside of the introduction passage between the jaws 51 and 52, and functions to maintain the upright posture of the sewing cloth in the introduction passage. By loosening the screw 15, the position of the cloth guide 16 can be adjusted together with the guide mounting piece 14. By adjusting the position of the cloth guide 16, the operator can adjust the introduction posture of the sewing cloth so that the cutting by the fixed blade 6a and the movable blade 6b can be performed satisfactorily.
通過旋鬆螺絲15,還能夠與引導安裝片14一起將布料引導16從縫紉機台1的前方取下。在實施其他的合縫時將布料引導16取下。其他的合縫是指,例如通過固定刀6a與可動刀6b只將2片布料中的一片布料的邊緣切斷,重疊在另一片布料上進行合縫的形式的合縫等。By loosening the screw 15, it is also possible to remove the cloth guide 16 from the front side of the sewing machine table together with the guide mounting piece 14. The fabric guide 16 is removed when other seams are performed. The other joints are, for example, a joint in which only one of the two fabrics is cut by the fixed blade 6a and the movable blade 6b, and the seam is superimposed on the other fabric to be joined.
右側的壓腳52的上表面,安裝有引導板55。引導板55是垂直豎立在右側壓爪52的前部,並向著左側壓爪51的後部傾斜延伸的平板。引導板55前側凹陷而彎曲。如此所安裝的引導板55,對被固定刀6a與可動刀6b的切齊所去掉的縫製布料的切斷片進行引導,傳送到左側的壓爪51的外側。A guide plate 55 is attached to the upper surface of the presser foot 52 on the right side. The guide plate 55 is a flat plate that is vertically erected on the front portion of the right side pressing claw 52 and that extends obliquely toward the rear portion of the left side pressing claw 51. The front side of the guide sheet 55 is recessed and bent. The guide sheet 55 thus attached guides the cut piece of the sewn fabric removed by the cutting of the fixed blade 6a and the movable blade 6b, and is conveyed to the outside of the left pressing jaw 51.
如圖1所示,縫紉機臂3的左端面的下部,通過安裝架57安裝有吸管56。吸管具有向壓腳5的左側後部開口的吸口,將上述引導板55所傳送的縫製布料的切斷片吸引到吸口中而去除。吸管56的安裝架57,能夠以設置在後部的上下方向的銷58為中心進行擺動操作,將前部打開。通過對安裝架57進行打開操作,吸管56移動到從壓腳5離開的待機位置。移動到了待機位置上的吸管56,不會阻礙縫製布料在縫紉機台1上的裝卸。As shown in FIG. 1, a suction pipe 56 is attached to the lower portion of the left end surface of the sewing machine arm 3 via a mounting bracket 57. The straw has a suction opening that opens to the left rear portion of the presser foot 5, and the cut piece of the sewing fabric conveyed by the guide sheet 55 is sucked into the suction port to be removed. The mounting bracket 57 of the suction pipe 56 is swingable around the pin 58 provided in the vertical direction of the rear portion, and the front portion is opened. By opening the mounting frame 57, the suction pipe 56 is moved to the standby position away from the presser foot 5. The suction pipe 56 that has moved to the standby position does not hinder the loading and unloading of the sewing cloth on the sewing machine table 1.
圖1所示的縫紉機台1,在針板10的左右兩側具有平坦的上表面20。本發明中,縫紉機台1的上表面20比針板10的上表面低。針板10的安裝位置的右側,設有隨著遠離針板10而傾斜下切的階梯部21。並且如圖2所示,針板10在寬度方向的兩側具有錐拔狀的倒角部18,18。右側的倒角部18在安裝在縫紉機台1中時與上述階梯部21連續。縫紉機台1的上表面20,在針板10的右側比針板10的上表面低倒角部18與階梯部21的高度,在針板10的左側只比針板10的上表面低倒角部18的高度。The sewing machine table 1 shown in Fig. 1 has a flat upper surface 20 on the left and right sides of the needle plate 10. In the present invention, the upper surface 20 of the sewing machine table 1 is lower than the upper surface of the needle plate 10. The right side of the mounting position of the needle plate 10 is provided with a step portion 21 that is inclined downward as it goes away from the needle plate 10. Further, as shown in FIG. 2, the needle plate 10 has tapered and chamfered portions 18, 18 on both sides in the width direction. The chamfered portion 18 on the right side is continuous with the step portion 21 when it is mounted in the sewing machine table 1. The upper surface 20 of the sewing machine table 1 has a lower chamfered portion 18 and a height of the stepped portion 21 on the right side of the needle plate 10 than the upper surface of the needle plate 10, and is only chamfered on the left side of the needle plate 10 from the upper surface of the needle plate 10 The height of the portion 18.
圖3為針板10的安裝位置附近的縫紉機台1的正面剖面圖。縫紉機台1的內部,在針板10的下側設有彎針8(Looper)。彎針8安裝在彎針座81的末端部。彎針座81的根部固定在彎針軸80上。彎針軸80架設在遠離針板10下方的位置上,軸長方向位於前後方向上,通過來自縫紉機主軸(圖示省略)的傳動而在規定的角度範圍內反復轉動。隨著彎針軸80的反復轉動,彎針座81與彎針8以該彎針軸80為中心在圖中實線所示的位置與虛線所示的位置之間擺動。3 is a front cross-sectional view of the sewing machine table 1 in the vicinity of the mounting position of the needle plate 10. Inside the sewing machine table 1, a looper 8 (Looper) is provided on the lower side of the needle plate 10. The looper 8 is attached to the end portion of the looper holder 81. The root of the looper base 81 is fixed to the looper shaft 80. The looper shaft 80 is stretched at a position away from the needle plate 10, and the axial length direction is located in the front-rear direction, and is repeatedly rotated within a predetermined angle range by a transmission from a sewing machine main shaft (not shown). With the repeated rotation of the looper shaft 80, the looper holder 81 and the looper 8 swing between the position indicated by the solid line in the figure and the position indicated by the broken line centering on the looper shaft 80.
如此進行擺動的彎針8,與針4,4…的上升下降同步,在針板10的下表面進行橫穿,捕捉從針孔10a,10a…中通過而下降的針4,4…所保持的針線。彎針8所捕捉的針線,與彎針8所保持的彎針線絡合,而在針板10上的縫製布料上形成線步。彎針8的擺動以針4,4…所下降的針板10的中央部為頂點,在左右兩側遠離針板10。縫紉機台1的階梯部21是為了避免與彎針8的擺動區域發生干涉而設置的。The looper 8 thus oscillated is traversed on the lower surface of the needle plate 10 in synchronization with the ascending and descending of the needles 4, 4, ..., and is held by the needles 4, 4, which are lowered by the passage of the needle holes 10a, 10a, ... Needlework. The needle thread caught by the looper 8 is integrated with the looper thread held by the looper 8, and a line step is formed on the stitching fabric on the needle board 10. The swinging of the looper 8 is at the apex of the center portion of the needle plate 10 which is lowered by the needles 4, 4, ..., and is away from the needle plate 10 on the left and right sides. The step portion 21 of the sewing machine table 1 is provided to avoid interference with the swing region of the looper 8.
圖3中,針板10的右側設有階梯部21,同側的縫紉機台1的上表面20比針板10的上表面足夠低,確保與針板10的上表面之間存在圖中用H表示的高低差。壓腳5下降到前述的針板10的上表面,將縫製布料夾在壓腳5與針板10之間。壓腳5具有刀裝置,被右側的壓腳52所保持的可動刀6b的端部,以及與該端部相連接的刀架75,位於該右側的壓腳52的外側。In Fig. 3, the right side of the needle plate 10 is provided with a step portion 21, and the upper surface 20 of the sewing machine table 1 on the same side is sufficiently lower than the upper surface of the needle plate 10 to ensure the presence of H in the figure with the upper surface of the needle plate 10. The difference between the heights indicated. The presser foot 5 is lowered to the upper surface of the aforementioned needle plate 10, and the sewing fabric is sandwiched between the presser foot 5 and the needle plate 10. The presser foot 5 has a knife device, and an end portion of the movable blade 6b held by the right presser foot 52 and a blade holder 75 connected to the end portion are located outside the presser foot 52 on the right side.
本發明中,針板10的上表面與縫紉機台1的上表面20之間存在高低差H,刀架75與縫紉機台1的上表面20之間產生了大於等於上述高低差H的縫隙。因此,作業者利用該縫隙在壓腳5的附近用手壓著縫製布料,一邊沿著縫紉機台1的上表面20滑動一邊向後方壓,就能夠輔助縫製布料的傳送。In the present invention, there is a height difference H between the upper surface of the needle plate 10 and the upper surface 20 of the sewing machine table 1, and a gap equal to or greater than the above-described height difference H is generated between the tool holder 75 and the upper surface 20 of the sewing machine table 1. Therefore, the operator presses the sewing fabric by the slit in the vicinity of the presser foot 5, and presses it back along the upper surface 20 of the sewing machine table 1, thereby assisting the conveyance of the sewing fabric.
縫紉機台1的上表面20如圖1、3所示,由安裝為從前側覆蓋針板10的右側的縫紉機台1的上部的前蓋22形成。階梯部21如圖3所示,通過將前蓋22的邊緣部彎曲而形成。As shown in Figs. 1 and 3, the upper surface 20 of the sewing machine table 1 is formed by a front cover 22 that is attached to the upper portion of the sewing machine table 1 that covers the right side of the needle plate 10 from the front side. As shown in FIG. 3, the stepped portion 21 is formed by bending an edge portion of the front cover 22.
上述階梯部21在針板10的左側也同樣設置。通過這樣,作業者在壓腳5的左側也能夠在針板10的附近壓住縫製布料,輔助該縫製布料的傳送,而不會被伸出在壓爪51外側的固定刀6a的存在所干擾。通過這樣的傳送輔助,能夠良好地實施前述的合縫。The step portion 21 is also provided on the left side of the needle plate 10. By doing so, the operator can press the sewing cloth in the vicinity of the needle plate 10 on the left side of the presser foot 5, thereby assisting the conveyance of the sewing cloth without being disturbed by the presence of the fixed knife 6a protruding outside the pressure claw 51. . With such transfer assistance, the aforementioned merging can be satisfactorily performed.
以上的效果只通過將縫紉機台1的上表面20設置的比針板10的上表面低這種簡單的結構就能夠實現。縫紉機台1的上表面20僅僅是設置的較低,存在有在針板10的兩側擴展的平坦部,維持了從下面支持大塊的縫製布料的作用。因此,本發明的箱形機台雙線鏈式線跡縫紉機能夠將大塊的縫製布料的邊緣以一定的寬度重疊起來進行縫合。The above effects can be achieved only by a simple structure in which the upper surface 20 of the sewing machine table 1 is disposed lower than the upper surface of the needle plate 10. The upper surface 20 of the sewing machine table 1 is only provided at a low level, and there is a flat portion which is extended on both sides of the needle plate 10, and the function of supporting the large-sized sewing fabric from below is maintained. Therefore, the double-line chain stitch sewing machine of the box-shaped machine of the present invention can suspend the edges of the large pieces of the sewn fabric with a certain width.
圖4為可動刀6b的傳動機構7的立體圖。圖4中的9為刀振軸。刀振軸9被支持在縫紉機臂3的內部,通過來自縫紉機主軸的傳動而在規定的角度範圍內進行反復轉動。刀振軸9的一端部固定有在徑向上向外伸出的擺動臂90。擺動臂90隨著刀振軸9的反復轉動而擺動。Fig. 4 is a perspective view of the transmission mechanism 7 of the movable blade 6b. 9 in Fig. 4 is the knife axis. The blade shaft 9 is supported inside the sewing machine arm 3, and is repeatedly rotated within a predetermined angle range by transmission from the sewing machine main shaft. One end portion of the blade shaft 9 is fixed with a swing arm 90 projecting outward in the radial direction. The swing arm 90 swings in accordance with the repeated rotation of the blade shaft 9.
傳動機構7具有呈圓筒形的傳動筒70。傳動筒70的軸長方向的一端部較粗,該較粗部分中具有在徑向上向外突出的刀安裝臂71。傳動筒70的另一端部安裝有在徑向上向外突出的傳動臂72。傳動筒70以刀安裝臂71一側為下方,嵌插在貫通縫紉機臂3的下臂的支持筒73中而被支持,能夠繞中心軸自由轉動。The transmission mechanism 7 has a cylindrical drive cylinder 70. One end portion of the drive cylinder 70 in the axial length direction is thick, and the thicker portion has a cutter mounting arm 71 that protrudes outward in the radial direction. The other end of the drive cylinder 70 is mounted with a transmission arm 72 that projects outward in the radial direction. The drive cylinder 70 is supported by a support cylinder 73 that penetrates the lower arm of the sewing machine arm 3 so as to be movable downward from the side of the blade attachment arm 71, and is rotatable around the central axis.
傳動筒70的上部向著縫紉機臂3的內部伸出。傳動臂72安裝在傳動筒70的伸出端部上。傳動臂72的末端通過傳動連接件91與刀振軸9的擺動臂90相連接。傳動連接件91將刀振軸9的反復轉動引起的擺動臂90的擺動傳遞給傳動臂72。傳動臂72隨著擺動臂90的擺動而擺動,具有該擺動臂72的傳動筒70在與刀振軸9的反復轉動對應的角度範圍內反復轉動。The upper portion of the drive cylinder 70 projects toward the inside of the sewing machine arm 3. The transmission arm 72 is mounted on the extended end of the drive cylinder 70. The end of the transmission arm 72 is coupled to the swing arm 90 of the blade shaft 9 via a transmission link 91. The transmission link 91 transmits the oscillation of the swing arm 90 caused by the repeated rotation of the blade shaft 9 to the transmission arm 72. The transmission arm 72 swings in accordance with the swing of the swing arm 90, and the drive cylinder 70 having the swing arm 72 repeatedly rotates in an angular range corresponding to the repeated rotation of the blade shaft 9.
傳動連接件91在擺動臂90與傳動臂72的連接端具有球形接頭92,92。球形接頭92,92吸收繞不同的軸旋轉的擺動臂90與傳動臂72之間的相對位置變化。The transmission link 91 has a ball joint 92, 92 at the connection end of the swing arm 90 and the transmission arm 72. The ball joints 92, 92 absorb relative positional changes between the swing arm 90 and the drive arm 72 that rotate about different axes.
設置在傳動筒70的下端部的刀安裝臂71位於縫紉機臂3的外側,末端部具有向下延伸的固定座71a。該固定座71a中固定有安裝座74,設置在該安裝座74的下部的刀架75中,如前所述,安裝有可動刀6b的根部。可動刀6b被保持在壓腳5的右側壓爪52上,能夠進行往返運動。可動刀6b通過刀安裝臂71的擺動而進行往返運動。刀架75被設置在安裝座74中的線圈彈簧76向下施力。線圈彈簧76將安裝在刀架75中的可動刀6b向下壓,在壓腳5的上述導入通道內部壓到固定刀6a上。進行往返運動的可動刀6b的末端的刀刃,與在被線圈彈簧76下壓的狀態下與固定刀6a的末端的刀刃擦接,將縫製布料的邊緣可靠地切斷。The blade mounting arm 71 provided at the lower end portion of the transmission cylinder 70 is located outside the sewing machine arm 3, and the distal end portion has a fixing seat 71a extending downward. A mounting seat 74 is fixed to the fixing base 71a, and a root portion of the movable blade 6b is attached to the tool holder 75 provided at a lower portion of the mounting seat 74 as described above. The movable blade 6b is held by the right pressing claw 52 of the presser foot 5, and is capable of reciprocating motion. The movable blade 6b is reciprocated by the swing of the blade mounting arm 71. The tool holder 75 is biased downward by a coil spring 76 provided in the mount 74. The coil spring 76 presses the movable blade 6b mounted in the blade holder 75 downward, and presses the inside of the introduction passage of the presser foot 5 onto the fixed blade 6a. The blade edge of the movable blade 6b that performs the reciprocating motion is wiped by the blade edge of the fixed blade 6a in a state of being pressed by the coil spring 76, and the edge of the sewing cloth is reliably cut.
需說明的是,圖4中為了明示出可動刀6b的安裝狀態,示出的該可動刀6b的安裝方向與實際方向不同。可動刀6b安裝為與刀振軸9平行延伸,在支援該刀振軸9的縫紉機臂3的方向即左右方向上進行往返運動。In addition, in FIG. 4, in order to clearly show the attachment state of the movable blade 6b, the mounting direction of the movable blade 6b is different from the actual direction. The movable blade 6b is attached to extend in parallel with the blade axis 9, and reciprocates in the direction of the sewing machine arm 3 that supports the blade axis 9, that is, in the left-right direction.
傳動筒70中內嵌保持有圓筒形的支持襯套32,該支持襯套32中通插有壓桿31。壓桿31的下端伸出到縫紉機臂3的外部,該伸出端如前所述,安裝有壓腳5。壓桿31通過在支持襯套32內滑動而在上下方向上運動,通過該運動,壓腳5上升下降。A cylindrical support bushing 32 is inserted into the drive cylinder 70, and a press bar 31 is inserted through the support bushing 32. The lower end of the pressing rod 31 projects to the outside of the sewing machine arm 3, and the protruding end is mounted with the presser foot 5 as described above. The presser bar 31 moves in the up and down direction by sliding in the support bushing 32, and by this movement, the presser foot 5 rises and falls.
刀驅動機構7具有在上下方向上貫通縫紉機臂3的下部的傳動筒70。該傳動筒70通過來自刀振軸9的傳動而反復轉動,可動刀6b隨著傳動筒70的反復轉動而進行往返運動。傳動筒70中內嵌保持有支持襯套32,支持襯套32對壓桿31進行可上下運動地支持,傳動筒70與壓桿31同軸,貫通縫紉機臂3。刀驅動裝置7能夠通過利用兼用作壓桿31的支持部件的傳動筒70這種簡單的結構,來實現從縫紉機臂3內部的刀振軸9向設置在縫紉機臂3的外部的壓腳5中的可動刀6b的傳動。The blade drive mechanism 7 has a drive cylinder 70 that penetrates the lower portion of the sewing machine arm 3 in the vertical direction. The drive cylinder 70 is repeatedly rotated by the transmission from the blade shaft 9, and the movable blade 6b reciprocates as the drive cylinder 70 repeatedly rotates. A support bushing 32 is supported in the drive cylinder 70, and the support bushing 32 supports the presser bar 31 so as to be movable up and down. The drive cylinder 70 is coaxial with the presser bar 31 and passes through the sewing machine arm 3. The blade driving device 7 can realize the blade shaft 9 from the inside of the sewing machine arm 3 to the presser foot 5 provided outside the sewing machine arm 3 by the simple structure of the driving cylinder 70 which also serves as the supporting member of the pressing lever 31. The drive of the movable knife 6b.
圖5為表示本發明的相關箱形機台雙線鏈式線跡縫紉機的另一實施形態的外觀立體圖。圖5中所示的縫紉機為中筒式箱形機台雙線鏈式線跡縫紉機,與圖1中所示的縫紉機一樣,具有縫紉機台1、腳柱2以及縫紉機臂3。縫紉機臂3的末端部支持有針桿30與壓桿31。針桿30的下端安裝有針4,4…,壓桿31的下端安裝有壓腳5。縫紉機台1的上表面架設有針板10,針板10與針4,4…以及壓腳5的下降位置相對應。Fig. 5 is an external perspective view showing another embodiment of the double-chain chain stitch sewing machine of the box-shaped machine of the present invention. The sewing machine shown in Fig. 5 is a two-wire chain stitch sewing machine of a middle cylinder type box machine, and has a sewing machine table 1, a foot column 2, and a sewing machine arm 3, like the sewing machine shown in Fig. 1. The needle end 30 and the pressure bar 31 are supported at the distal end portion of the sewing machine arm 3. Needles 4, 4 are attached to the lower end of the needle bar 30, and a presser foot 5 is attached to the lower end of the press bar 31. A needle plate 10 is disposed on the upper surface of the sewing machine table 1, and the needle plate 10 corresponds to the lowered positions of the needles 4, 4, ... and the presser foot 5.
縫紉機台1如圖所示,具有在針板10的左右兩側不同的形狀。針板10的右側(根端側),為具有與針板10相比向後延伸適當長度的平坦的上表面20的箱形部分1a,與此相對,針板10的左側(末端側),為具有處於針板10的長度範圍內的平坦的上表面20的筒形部分1b。The sewing machine table 1 has a different shape on the left and right sides of the needle plate 10 as shown in the drawing. The right side (root end side) of the needle plate 10 is a box-shaped portion 1a having a flat upper surface 20 extending rearward from the needle plate 10 by an appropriate length, whereas the left side (end side) of the needle plate 10 is A cylindrical portion 1b having a flat upper surface 20 within the length of the needle plate 10.
箱形部分1a與筒形部分1b的上表面20,均比針板10的上表面低。箱形部分1a的上表面20,通過針板10右側邊緣的倒角部18(參照圖2),與隨著遠離針板10而傾斜下切的階梯部21而與針板10的上表面連續。筒形部分1b的上表面20通過針板10左側邊緣的倒角部18(參照圖2)而與針板10的上表面連續。Both the box-shaped portion 1a and the upper surface 20 of the cylindrical portion 1b are lower than the upper surface of the needle plate 10. The upper surface 20 of the box-shaped portion 1a is continuous with the upper surface of the needle plate 10 by the chamfered portion 18 (see FIG. 2) of the right edge of the needle plate 10 and the stepped portion 21 which is inclined downwardly away from the needle plate 10. The upper surface 20 of the cylindrical portion 1b is continuous with the upper surface of the needle plate 10 by the chamfered portion 18 (refer to FIG. 2) of the left edge of the needle plate 10.
壓腳5如圖2所示,具有安裝在壓桿31的下端的壓腳本體50,以及從該壓腳本體50向前方延伸的壓爪51、52。壓腳5中還裝備有包括固定刀6a和可動刀6b的刀裝置。該刀裝置通過如圖4構成的刀驅動裝置7的驅動而進行運動,將導入到左右的壓爪51、52之間的縫製布料的邊緣切齊。刀裝置以及刀驅動裝置7的構成和動作,與圖1~圖4所示的實施形態相同,省略詳細說明。As shown in FIG. 2, the presser foot 5 has a presser body 50 attached to the lower end of the presser bar 31, and the pressurizing claws 51 and 52 extended forward from the press script body 50. The presser foot 5 is also equipped with a knife device including a fixed blade 6a and a movable blade 6b. The knife device is moved by the driving of the blade driving device 7 configured as shown in Fig. 4, and the edges of the sewing cloth introduced between the left and right jaws 51, 52 are aligned. The configuration and operation of the knife device and the blade driving device 7 are the same as those of the embodiment shown in Figs. 1 to 4, and detailed description thereof will be omitted.
圖5所示的實施形態中,被傳送到落針位置處的縫製布料的邊緣,被壓腳5中裝配的刀裝置的運動而切齊,因此能夠實施大致一定的縫合寬度的合縫。另外,縫紉機台1的上表面20比針板10的上表面低,因此作業者能夠在針板10與壓腳5的兩側附近用手壓住縫製布料,輔助該縫製布料的傳送,從而能夠可靠地進行大塊縫製布料的合縫。In the embodiment shown in Fig. 5, the edge of the sewing fabric conveyed to the needle drop position is aligned by the movement of the blade device attached to the presser foot 5, so that a seam having a substantially constant stitch width can be realized. Further, since the upper surface 20 of the sewing machine table 1 is lower than the upper surface of the needle plate 10, the operator can press the sewing cloth by hand near the both sides of the needle plate 10 and the presser foot 5 to assist the conveyance of the sewing fabric, thereby enabling Reliably sew the large pieces of sewn fabric.
圖5的實施形態中,縫紉機台1的末端側設有筒形部分1b,能夠應對可通插該筒形部分1b的筒形布料的縫製。In the embodiment of Fig. 5, the cylindrical portion 1b is provided on the distal end side of the sewing machine table 1, and it is possible to cope with the sewing of the tubular cloth through which the cylindrical portion 1b can be inserted.
以上所說明的實施形態僅僅用來使本發明的技術內容明確,本發明不應被限定為上述的實施形態而作狹義解釋,能夠在本發明的技術思想和申請專利範圍所述的範圍內進行各種變更並實施。The embodiments described above are only intended to clarify the technical content of the present invention, and the present invention is not limited to the above-described embodiments and is interpreted in a narrow sense, and can be carried out within the scope of the technical idea of the present invention and the scope of the patent application. Various changes and implementation.
1...縫紉機台1. . . Sewing machine
2...腳柱2. . . Foot column
3...縫紉機臂3. . . Sewing arm
4...根針4. . . Needle
5...壓腳5. . . Presser foot
6a...固定刀6a. . . Fixed knife
6b...可動刀6b. . . Movable knife
7...傳動機構7. . . Transmission mechanism
9...刀振軸9. . . Knife axis
10...針板10. . . Needle plate
10a...止動螺絲10a. . . Stop screw
11...安裝台11. . . Mounting table
12...缺口部12. . . Notch
12a...凹部12a. . . Concave
13...送齒孔13. . . Feeding hole
14...引導安裝片14. . . Boot installation
15...旋鬆螺絲15. . . Loosen the screw
16...布料引導16. . . Cloth guiding
17...止動螺絲17. . . Stop screw
20...上表面20. . . Upper surface
30...針桿30. . . Needle bar
31...壓桿31. . . Pressure bar
40...針固定器40. . . Needle holder
50...壓腳本體50. . . Press script body
51、52...壓爪51, 52. . . Claw
53...保持孔53. . . Hold hole
54...保持孔54. . . Hold hole
55...引導板55. . . Guide board
56...吸管56. . . straw
57...安裝架57. . . Mount
58...銷58. . . pin
74...安裝座74. . . Mount
75...刀架75. . . Tool holder
圖1是表示本發明的箱形機台雙線鏈式線跡縫紉機的外觀的立體圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the appearance of a double-chain chain stitch sewing machine for a box-shaped machine according to the present invention.
圖2是針板的安裝狀態的說明圖。Fig. 2 is an explanatory view showing a state in which the needle plate is mounted.
圖3是針板的安裝位置附近的縫紉機台的正面剖面圖。Figure 3 is a front cross-sectional view of the sewing machine table near the mounting position of the needle plate.
圖4是可動刀的驅動機構的立體圖。4 is a perspective view of a drive mechanism of the movable blade.
圖5是表示本發明的箱形機台雙線鏈式線跡縫紉機的另一實施形態的外觀的立體圖。Fig. 5 is a perspective view showing the appearance of another embodiment of the double-chain chain stitch sewing machine of the box-shaped machine of the present invention.
1...縫紉機台1. . . Sewing machine
2...腳柱2. . . Foot column
3...縫紉機臂3. . . Sewing arm
4...根針4. . . Needle
5...壓腳5. . . Presser foot
10...針板10. . . Needle plate
20...上表面20. . . Upper surface
30...針桿30. . . Needle bar
31...壓桿31. . . Pressure bar
40...針固定器40. . . Needle holder
56...吸管56. . . straw
57...安裝架57. . . Mount
58...銷58. . . pin
Claims (4)
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JP2009053779 | 2009-03-06 | ||
JP2009108327A JP4822193B2 (en) | 2009-03-06 | 2009-04-27 | Box bed double chain stitch machine |
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TW201040346A TW201040346A (en) | 2010-11-16 |
TWI410544B true TWI410544B (en) | 2013-10-01 |
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TW99106402A TWI410544B (en) | 2009-03-06 | 2010-03-05 | Box Machine Double Line Chain Stitch Sewing Machine |
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TW (1) | TWI410544B (en) |
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CN105088545B (en) * | 2015-09-02 | 2017-10-03 | 宁波三合鑫自动化有限公司 | Solid bowl type computer controlled direct-drive high-speed automatic tangent flat seam machine |
CN112444206B (en) * | 2020-11-13 | 2022-09-06 | 广州高梭自动化科技有限公司 | Horizontal seam detection mechanism and sewing machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56104694A (en) * | 1979-09-20 | 1981-08-20 | Rockwell Rimoldi Spa | Trimming device for workpiece for sewing machine |
JPH078658A (en) * | 1993-06-11 | 1995-01-13 | Union Special Corp | Apparatus for lap-sewing, sewing machine provided with lap-sewing mechanism and method for lap-sewing |
JPH09192367A (en) * | 1996-01-19 | 1997-07-29 | Pegasus Sewing Mach Mfg Co Ltd | Stitching machine with cloth guide and knife-fitted holders |
JPH11300071A (en) * | 1998-04-16 | 1999-11-02 | Yamato Sewing Mach Co Ltd | Beltlike article cutter for sewing machine |
TW533252B (en) * | 2000-07-07 | 2003-05-21 | Suzuki Mfg | Looper and trimmer driving mechanism of sewing machine |
-
2009
- 2009-04-27 JP JP2009108327A patent/JP4822193B2/en active Active
-
2010
- 2010-03-05 TW TW99106402A patent/TWI410544B/en active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56104694A (en) * | 1979-09-20 | 1981-08-20 | Rockwell Rimoldi Spa | Trimming device for workpiece for sewing machine |
JPH078658A (en) * | 1993-06-11 | 1995-01-13 | Union Special Corp | Apparatus for lap-sewing, sewing machine provided with lap-sewing mechanism and method for lap-sewing |
JPH09192367A (en) * | 1996-01-19 | 1997-07-29 | Pegasus Sewing Mach Mfg Co Ltd | Stitching machine with cloth guide and knife-fitted holders |
JPH11300071A (en) * | 1998-04-16 | 1999-11-02 | Yamato Sewing Mach Co Ltd | Beltlike article cutter for sewing machine |
TW533252B (en) * | 2000-07-07 | 2003-05-21 | Suzuki Mfg | Looper and trimmer driving mechanism of sewing machine |
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JP4822193B2 (en) | 2011-11-24 |
JP2010227527A (en) | 2010-10-14 |
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