TWI493084B - Double needle sewing machine - Google Patents

Abstract

The two-needle sewing machine (1) has a needle-holding unit for receiving two needles (11,12). Two spaced gripper blocks are fixed at a lower shaft (31), where each gripper block bears one gripper interacting with one of the two needles during the stitch formation. A clamping screw is provided for fixing one of the two gripper blocks on the lower shaft.

Description

雙針縫紉機Double needle sewing machine

本發明涉及一種雙針縫紉機，其具有一用於接納兩根縫紉針的針接納單元和兩個間隔開地固定在底軸上的擺梭/鈎圈裝置(Greifer)支座。The present invention relates to a two-needle sewing machine having a needle receiving unit for receiving two sewing needles and two shuttle/hook device holders spaced apart from each other on the bottom shaft.

利用雙針縫紉機能夠以給定的間距進行雙線縫紉。如果要改變形成雙線跡的兩單線跡之間的距離，則必須相應地改變兩個擺梭支座之間的間距。With the double needle sewing machine, two-line sewing can be performed at a given pitch. If the distance between the two single stitches forming the double stitch is to be changed, the spacing between the two shuttle supports must be changed accordingly.

本發明的目的在於，實現上述類型的距離調節，而不必隨後進行擺梭運行與針接納單元的針桿行程(Schleifenhub)運動的同步。The object of the invention is to achieve a distance adjustment of the type described above without having to subsequently synchronize the shuttle movement with the needle stroke of the needle receiving unit.

根據本發明，所述目的通過具有在申請專利範圍第1項中給出的特徵的縫紉機來實現。According to the invention, the object is achieved by a sewing machine having the features given in item 1 of the patent application.

根據本發明認識到，即使在拆鬆緊固螺桿後，與梭尖同步的空心軸相對於與針接納單元同步的底軸的周向相對位置仍通過緊固螺桿的與底軸互補的表面構型和固定裝置而被固定。在重新擰緊緊固螺桿時周向相對位置保持不變，從而能夠在不必隨後重新同步擺梭與針桿的情況下對(兩)擺梭支座進行相對調節。本發明特別有利地適用於雙針縫紉機。但原則上本發明也可以用於具有較多數量的縫紉針的多針縫紉機。在這種情況下設有相應數量的具有擺梭支座的擺梭、以及相應數量的根據本發明的緊固螺桿和固定裝置。According to the invention, it is recognized that even after the fastening screw has been loosened, the circumferential relative position of the hollow shaft synchronized with the shuttle tip with respect to the bottom shaft synchronized with the needle receiving unit is still complemented by the surface configuration of the fastening screw complementary to the bottom shaft And fixed with the fixture. The circumferential relative position remains unchanged when the tightening screw is retightened, so that the (two) shuttle supports can be relatively adjusted without having to resynchronize the shuttle and the needle bar. The invention is particularly advantageous for use in a two-needle sewing machine. In principle, however, the invention can also be applied to multi-needle sewing machines having a greater number of sewing needles. In this case, a corresponding number of shuttles with a shuttle bearing and a corresponding number of fastening screws and fastening devices according to the invention are provided.

根據申請專利範圍第2項所述的調整套筒和緊固結構可以實現結構較簡單的固定裝置。According to the adjustment sleeve and the fastening structure described in the second aspect of the patent application, a relatively simple fixing device can be realized.

根據申請專利範圍第3項所述的緊固結構也可以實現結構較簡單的固定裝置。According to the fastening structure described in claim 3 of the patent application, a relatively simple fixing device can also be realized.

根據申請專利範圍第4項所述的、可特別是設計成凹口的壁厚縮減部允許在不引起空心軸相對於底軸的周向相對位置的不希望移位元的情況下，上緊第二緊固螺桿。The wall thickness reduction, which can be designed in particular as a recess, according to the scope of claim 4, allows for tightening without causing undesired displacement elements of the circumferential relative position of the hollow shaft relative to the bottom shaft. The second fastening screw.

已證明在根據申請專利範圍第5和6項所述的實施形式中的對接面特別適合於確保一確定的周向相對位置。The abutting faces in the embodiments according to the scope of claims 5 and 6 have proven to be particularly suitable for ensuring a certain circumferential relative position.

根據申請專利範圍第7項所述的設計方案，能使周向相對位置沿著用於相應擺梭支座的整個軸向調節區域保持不變。According to the design described in the scope of claim 7, the circumferential relative position can be kept constant along the entire axial adjustment area for the respective shuttle support.

圖式簡單說明Simple illustration

下面借助附圖詳細闡述本發明的實施例。其中：第1圖示出一雙針縫紉機的工作側的視圖，其中略去了機台以顯示出安裝在基板中的各零件；第2圖示出根據第1圖的雙針縫紉機的透視圖；第3圖由根據第1圖的觀察方向示出放大的縫紉機針桿切換元件，其中兩個針桿皆處於上止點並處於接入的縫紉工作狀態；第4圖由第3圖中的觀察方向IV示出針桿切換元件的視圖；第5圖由第4圖中的觀察方向V示出針桿切換元件的視圖；第6圖以類似於第3圖的視圖示出組件，其中左針桿在下止點區域中被接入而右針桿被移出；第7圖以類似於第4圖的視圖示出在根據第6圖的切換狀態下的針桿切換元件；第8圖以類似於第6圖的視圖示出針桿切換元件，其中在根據實施針傳送擺動運動的位置中示出針桿，與第6圖相比略去了針桿切換元件的幾個部件；第9圖以類似於第7圖的視圖示出在根據第8圖的針傳送位置中的針桿切換組件；第10圖示出第9圖中的區域X的局部放大圖；第11圖以類似於第8圖的視圖示出根據實施針傳送擺動運動的針桿切換元件；第12圖以類似於第7圖的視圖示出在根據第11圖的針傳送位置中的針桿切換組件；第13圖示出第12圖中的區域XIII的局部放大圖；第14圖以類似於第4圖的視圖示出針桿切換元件，其中卻略去幾個部件，在推力軸/驅動軸(Schubwelle)的區域中被截斷並且局部被剖開；第15圖示出第14圖中的局部XV的放大圖；第16圖根據第14圖中的觀察方向XVI示出元件的視圖；第17圖示出縫紉機針桿傳送裝置的連桿系/連桿機構在拉桿的傳送位置中的透視圖；第18圖示出由平行於推力軸縱軸線的觀察方向觀察的、根據第17圖的連桿系的側視圖；第19圖示出根據第18圖中的線XIX－XIX的剖視圖；第20圖以類似於第17圖的視圖示出連桿系，其中拉桿在非工作位置中示出；第21圖以類似於第18圖的視圖示出在根據第20圖的位置中的連桿系；第22圖示出根據在第21圖中的線XXII－XXII的剖視圖；第23圖以類似於第20圖的視圖示出連桿系，其中連桿系的送針桿的固定螺栓被拆鬆；第24圖以類似於第21圖的視圖示出在根據第23圖的位置中的連桿系；第25圖示出縫紉機的擺梭驅動組件的透視圖；第26圖示出擺梭/鈎圈裝置(Greifer)驅動元件的軸佈置結構的透視圖；第27圖示出根據第26圖的軸佈置結構的側視圖；第28圖示出軸佈置結構根據第27圖中的線XXVIII－XXVIII的軸向縱剖視圖；第29圖示出第28圖中的局部細節XXIX；第30圖示出根據第27圖中的線XXX－XXX的剖視圖；第31圖示出根據第27圖中的線XXXI－XXXI的剖視圖；第32圖以類似於第31圖的視圖示出位於用於擺動調節空心軸的第一邊界位置中的軸佈置結構，所述擺動調節用於設定針桿行程(Schleifenhub)；第33圖以類似於第31圖的視圖示出位於用於擺動調節空心軸的對置邊界位置中的軸佈置結構，所述擺動調節用於設定針桿行程；第34圖示出根據第30圖中的線XXXIV－XXXIV的剖視圖；第35圖示出第34圖中的局部細節XXXV；第36圖示出縫紉機的割線器組件的透視圖；第37圖示出割線器組件的在切割力調節螺栓的區域中剖斷的俯視圖；第38圖根據在第37圖中的觀察方向XXXVIII示出割線器元件的側視圖；第39圖由類似於第38圖的觀察方向、以刮線刀/線拉刮刀(Fadenziehmesser)在割線後相對於對應刀/反向刀的位置示出割線器元件在刀佈置結構區域中的局部放大圖；第40圖示出第39圖中的局部細節XL；第41圖以類似於第39圖的視圖示出在切割力調節螺栓的區域中露出的內部細節；第42圖示出在根據第39圖的相對位置中的刀佈置結構的俯視圖；第43圖以刮線刀在割線前相對於對應刀的相對位置示出的割線器元件的刀佈置結構的透視圖；第44圖以類似於第39圖的視圖示出在根據第43圖的相對位置中的刀佈置結構；第45圖示出第44圖中的細節XLV；第46圖以類似於第42圖的視圖示出在根據第43圖的相對位置中的刀佈置結構；第47圖沿切割力調節螺栓的觀察方向示出刀佈置結構的局部透視圖；第48圖以刮線刀在調節切割力時相對於對應刀的相對位置示出刀佈置結構；第49圖以類似於第44圖的視圖示出在根據第48圖的相對位置中的刀佈置結構；第50圖示出在第49圖中的細節L；第51圖以類似於第46圖的視圖示出在根據第48圖的相對位置中的刀佈置結構；第52圖以類似於第47圖的視圖示出在根據第48圖的相對位置中的佈置結構；第53圖以從斜下方觀察下線夾/夾線機構的觀察方向示出在根據第39圖的相對位置中的刀佈置結構的透視圖，其中略去對應刀；第54圖以類似於第39圖的視圖示出具有通過夾緊力調節螺栓預載入的線夾的刀佈置結構；第55圖以露出夾緊力調節螺栓的剖斷的觀察方向示出根據第54圖中的觀察方向LV的視圖；第56圖示出在刮線刀的相對於對應刀和相對於下線夾的夾線力調節相對位置中的刀佈置結構；第57圖以類似於54的視圖示出在根據第56圖的相對位置中的刀佈置結構；第58圖以類似於55的視圖示出刀佈置結構，其中夾緊力調節螺栓與線夾相接合；第59圖示出第58圖在下線夾的區域中的局部放大圖；第60圖示出基板在針板和兩個與該針板相鄰的針板滑塊的區域中的從斜上方觀察的局部透視圖；第61圖示出根據第60圖的基板部段的俯視圖；第62圖示出根據第61圖中的線LXII－LXII的剖視圖；第63圖以固定位置示出在第62圖中的細節LXII，其中第61圖中在右側示出的針板滑塊不能相對於基板進行相對移動；第64圖以釋放位置示出根據第63圖的細節，其中針板滑塊能夠相對於基板進行相對移動；第65圖示出根據第61圖中的線LXV－LXV的剖視圖；以及第66圖示出在第65圖中的細節LXVI。Embodiments of the invention are explained in detail below with reference to the drawings. Wherein: Figure 1 shows a view of the working side of a double needle sewing machine, in which the machine table is omitted to show the parts mounted in the substrate; and Fig. 2 shows a perspective view of the double needle sewing machine according to Fig. 1. Figure 3 shows the enlarged needle bar shifting element of the sewing machine according to the viewing direction according to Fig. 1, wherein both of the needle bars are at the top dead center and are in the engaged sewing state; Fig. 4 is from Fig. 3 The viewing direction IV shows a view of the needle bar switching element; FIG. 5 shows a view of the needle bar switching element from the viewing direction V in FIG. 4; FIG. 6 shows the assembly in a view similar to FIG. 3, wherein The left needle bar is accessed in the bottom dead center area and the right needle bar is removed; FIG. 7 shows the needle bar switching element in the switching state according to FIG. 6 in a view similar to FIG. 4; FIG. The needle bar shifting element is shown in a view similar to that of Fig. 6, wherein the needle bar is shown in a position in which the oscillating motion is transmitted according to the implementation of the needle, and several components of the needle bar shifting element are omitted compared to Fig. 6; Figure 9 shows the needle bar switching group in the needle transfer position according to Fig. 8 in a view similar to Fig. 7. Fig. 10 is a partial enlarged view of a region X in Fig. 9; Fig. 11 is a view similar to Fig. 8 showing a needle bar switching member that transmits a swinging motion according to the implementation of the needle; Fig. 12 is similar to The view of Fig. 7 shows the needle bar switching assembly in the needle transfer position according to Fig. 11; the 13th view shows a partial enlarged view of the region XIII in Fig. 12; Fig. 14 is similar to Fig. 4 The view shows the needle bar shifting element, in which several components are omitted, are cut off in the region of the thrust shaft/drive shaft and are partially cut away; Fig. 15 shows the partial XV in Fig. 14. Figure 16 is a view showing the element according to the viewing direction XVI in Figure 14; and Figure 17 is a perspective view showing the link system/link mechanism of the sewing machine needle bar transfer device in the transfer position of the drawbar; Fig. 18 is a side view of the link system according to Fig. 17 as seen from the observation direction parallel to the longitudinal axis of the thrust shaft; Fig. 19 is a cross-sectional view according to the line XIX-XIX in Fig. 18; The figure shows the linkage in a view similar to Figure 17, wherein the drawbar is shown in the inoperative position; Figure 21 A view similar to Fig. 18 shows a link system in the position according to Fig. 20; Fig. 22 shows a cross-sectional view according to line XXII-XXII in Fig. 21; Fig. 23 is similar to the 20th The view of the figure shows the link system in which the fixing bolt of the needle bar of the link system is detached; Fig. 24 shows the link in the position according to Fig. 23 in a view similar to Fig. 21 Fig. 25 is a perspective view showing the shuttle drive assembly of the sewing machine; Fig. 26 is a perspective view showing the shaft arrangement of the shuttle/hook device (Greifer) drive member; and Fig. 27 is a view according to Fig. 26. Side view of the shaft arrangement; Fig. 28 shows an axial longitudinal sectional view of the shaft arrangement according to the line XXVIII-XXVIII in Fig. 27; Fig. 29 shows the partial detail XXIX in Fig. 28; A cross-sectional view according to line XXX-XXX in Fig. 27; Fig. 31 is a cross-sectional view according to line XXXI-XXXI in Fig. 27; Fig. 32 is shown in a view similar to Fig. 31 for swinging Adjusting the shaft arrangement in the first boundary position of the hollow shaft, the oscillation adjustment for setting the needle stroke (Schleifenhub); The view like the one shown in Fig. 31 shows the shaft arrangement in the opposite boundary position for the swing adjustment hollow shaft, the swing adjustment for setting the needle stroke; the 34th view according to Fig. 30 a cross-sectional view of line XXXIV-XXXIV; a 35th view showing a partial detail XXXV in Fig. 34; a 36th view showing a perspective view of the secant assembly of the sewing machine; and Fig. 37 showing a cutting force adjusting bolt of the secant assembly A top view of the cut in the region; Fig. 38 shows a side view of the secant element according to the viewing direction XXXVIII in Fig. 37; Fig. 39 is a scraper/line drawing blade similar to the viewing direction of Fig. 38 (Fadenziehmesser) shows a partial enlarged view of the secant element in the region of the arranging structure relative to the position of the corresponding knife/reverse knife after secant; Fig. 40 shows the partial detail XL in Fig. 39; Fig. 41 shows The view similar to Fig. 39 shows the internal details exposed in the region of the cutting force adjusting bolt; the 42nd view shows the top view of the blade arrangement in the relative position according to Fig. 39; Fig. 43 shows the scraping line The relative position of the knife relative to the corresponding knife before secant A perspective view of the knife arrangement of the secant element; FIG. 44 shows the arranging structure in the relative position according to FIG. 43 in a view similar to FIG. 39; and FIG. 45 shows the drawing in FIG. Detail XLV; Fig. 46 shows the knife arrangement in the relative position according to Fig. 43 in a view similar to Fig. 42; Fig. 47 shows a part of the knife arrangement along the viewing direction of the cutting force adjustment bolt a perspective view; Fig. 48 shows the knife arrangement with respect to the relative position of the wire cutter with respect to the corresponding knife when adjusting the cutting force; Fig. 49 shows the relative position according to Fig. 48 in a view similar to Fig. 44 Knife arrangement structure in FIG. 50; detail L in FIG. 49; FIG. 51 shows the knife arrangement structure in the relative position according to FIG. 48 in a view similar to FIG. 46; The figure shows the arrangement in the relative position according to Fig. 48 in a view similar to Fig. 47; Fig. 53 shows the viewing direction of the lower clip/clamping mechanism viewed obliquely from below, shown in Fig. 39 a perspective view of the knife arrangement in the relative position, wherein the corresponding knife is omitted; Figure 54 is similar 39 is a view showing a blade arrangement having a clamp preloaded by a clamping force adjustment bolt; FIG. 55 is a view showing the cut of the exposed clamping force adjustment bolt, showing the observation according to FIG. 54. View of direction LV; Fig. 56 shows the knife arrangement in the relative position of the wire cutter relative to the corresponding knife and the clamping force relative to the lower clamp; Fig. 57 is shown in a view similar to 54 The blade arrangement in the relative position according to Fig. 56; Fig. 58 shows the blade arrangement in a view similar to 55, in which the clamping force adjustment bolt is engaged with the clamp; Fig. 59 shows Fig. 58 a partial enlarged view in the region of the lower clamp; Fig. 60 is a partial perspective view of the substrate viewed obliquely from above in the region of the needle plate and the two needle sliders adjacent to the needle plate; A plan view of the substrate section according to Fig. 60; Fig. 62 shows a cross-sectional view according to line LXII-LXII in Fig. 61; Fig. 63 shows detail LXII in Fig. 62 in a fixed position, wherein 61 The needle plate slider shown on the right side of the figure cannot move relative to the substrate; Figure 64 shows The discharge position shows the detail according to Fig. 63, in which the needle plate slider can be relatively moved with respect to the substrate; Fig. 65 shows a sectional view according to the line LXV-LXV in Fig. 61; and Fig. 66 shows Figure 65 shows the details of LXVI.

在第1和2圖中示出主要部件的雙針縫紉機1具有上臂2、豎直的立柱3和形式為基板4的下機體。在臂2中可旋轉地支承有一主軸，在第14和16圖中標出該主軸的主軸軸線5。在第14圖中以兩根輔助線5a和5b的交點示出該主軸軸線。The double needle sewing machine 1 showing the main components in Figs. 1 and 2 has an upper arm 2, a vertical upright 3, and a lower body in the form of a substrate 4. A spindle is rotatably supported in the arm 2, and the spindle axis 5 of the spindle is indicated in Figures 14 and 16. The spindle axis is shown in Fig. 14 at the intersection of the two auxiliary lines 5a and 5b.

縫紉機1的機體7和基板4是縫紉機1的機架的一部分。The body 7 and the substrate 4 of the sewing machine 1 are a part of the frame of the sewing machine 1.

通過一安裝在臂2中的驅動馬達來驅動主軸、進而驅動縫紉機1的主要縫紉部件。其它縫紉部件通過帶傳動機構(在附圖中未詳細示出)來驅動。通過主軸和形式為曲柄傳動機構8的傳動機構(在第3至6圖中進一步詳細示出)可豎直地上下驅動針桿9、10。第1圖中在左側示出的針桿在下文中以附圖標記9來標示，而第1圖中在右側示出的針桿在下文中以附圖標記10來標示。針桿9、10分別帶有一根針11、12。針桿9、10二者形成用於兩根針11、12的針接納單元。在縫紉機1的未示出的實施例中，也可以設置一個接納兩根針11和12的單個針接納單元，而不是兩個針桿9、10。The main shaft is driven by a drive motor mounted in the arm 2, thereby driving the main sewing part of the sewing machine 1. Other sewing components are driven by a belt drive mechanism (not shown in detail in the drawings). The needle bars 9, 10 can be driven up and down vertically by a spindle and a transmission mechanism in the form of a crank drive 8 (shown in further detail in Figures 3 to 6). The needle bar shown on the left in Fig. 1 is indicated hereinafter by the reference numeral 9, and the needle bar shown on the right in Fig. 1 is indicated by the reference numeral 10 hereinafter. The needle bars 9, 10 are each provided with a needle 11, 12. Both the needle bars 9, 10 form a needle receiving unit for the two needles 11, 12. In an embodiment of the sewing machine 1 not shown, a single needle receiving unit for receiving the two needles 11 and 12 may be provided instead of the two needle bars 9, 10.

在針桿9、10的下方，在基板4的上支承板/座板13中設有一與支承板13螺紋連接的針板14。針板14在第60和61圖中詳細示出。針板14具有兩個沿縫紉方向15(參見第2和61圖)長形延伸的移料件開口16、17，所述移料件開口用於供具有兩個移料件部段18、19的移料件穿過，所述移料件用於在下面傳送縫料。移料件部段18、19分別具有一用於供相應的針11、12穿過的針孔20、21。Below the needle bars 9, 10, a needle plate 14 screwed to the support plate 13 is provided in the upper support plate/seat plate 13 of the substrate 4. Needle plate 14 is shown in detail in Figures 60 and 61. The needle plate 14 has two moving member openings 16, 17 extending in the sewing direction 15 (see Figures 2 and 61), the opening member for providing two moving member segments 18, 19 The moving material passes through, and the moving material is used to convey the sewing material underneath. The transfer member sections 18, 19 each have a pinhole 20, 21 for the passage of the respective needle 11, 12.

在縫紉過程中利用壓腳22從上方保持縫料。通過電磁驅動機構23(參看第1圖)能夠以電磁的方式使壓腳22形成氣隙/抬起。The sewing material is held from above by the presser foot 22 during the sewing process. The presser foot 22 can be electromagnetically formed/lifted by the electromagnetic drive mechanism 23 (see Fig. 1).

在縫紉過程中，可選擇使用移料件部段18、19或者刺入縫料的針11、12本身來向前移動在針板14和壓腳22之間的縫料。縫紉機1可選擇以下方傳送的方式或以針傳送的方式工作。During the sewing process, it is optional to use the feed member sections 18, 19 or the needles 11, 12 that pierce the sewing material to move the seam between the needle plate 14 and the presser foot 22 forward. The sewing machine 1 can be operated by means of the following transfer or by means of needle transfer.

在針板14下方，在基板4中設有擺梭組件24，所述擺梭組件的整體以及相互間隔開的擺梭25、26在第25圖中示出。在縫紉機1中，在擺梭25、26之間的距離變化、進而在利用針11、12和相應擺梭25、26縫紉的線縫之間的距離變化可以在幾毫米到幾十毫米之間的範圍內。Below the needle plate 14, a shuttle assembly 24 is provided in the base plate 4, the entirety of the shuttle assembly and the shuttles 25, 26 spaced apart from each other are shown in Fig. 25. In the sewing machine 1, the distance between the shuttles 25, 26 varies, and thus the distance between the stitches sewn by the needles 11, 12 and the corresponding shuttles 25, 26 can vary between a few millimeters and tens of millimeters. In the range.

擺梭25、26的擺梭尖端27與針11、12的運動同步地共同作用以形成針跡，其中通過針運動形成面線(未示出)的線圈，擺梭尖端27抓住所述線圈。The shuttle tip 27 of the shuttles 25, 26 cooperates with the movement of the needles 11, 12 to form a stitch, wherein a stitch of a face line (not shown) is formed by the needle movement, and the shuttle tip 27 grasps the stitch .

擺梭25、26設計成圍繞豎直的、彼此平行的軸線轉動的擺梭，並分別具有一用於存儲底線的針儲殼(Nadelvorratsgehäuse)28，所述底線以線筒的形式提供。在形成針跡時，由擺梭25、26提供的兩根底線中的一根與由兩根針11、12提供的面線中的一根打結/扭結。The shuttles 25, 26 are designed as a shuttle that rotates about an axis that is parallel to one another and each has a needle magazine 28 for storing a lower thread, which is provided in the form of a bobbin. When the stitch is formed, one of the two bottom threads provided by the shuttles 25, 26 is knotted/kinked with one of the upper threads provided by the two needles 11, 12.

兩根面線都由在附圖中未示出的線筒提供，並通過面線張緊裝置29(參見第1和2圖)以確定且可調節的方式張緊，所述面線張緊裝置安裝在臂2的安裝板上。Both of the upper threads are provided by a bobbin not shown in the drawings and are tensioned in a defined and adjustable manner by the upper thread tensioning device 29 (see Figures 1 and 2), which is tensioned. The device is mounted on the mounting plate of the arm 2.

一針距調節器傳動機構30用於驅動具有移料件部段18、19的移料件，所述針距調節器傳動機構在第1圖中可以在基板4的區域中看到。擺梭25、26通過一底軸31和一轉向傳動機構而被轉動驅動，所述底軸和轉向傳動機構分別安裝在配屬於擺梭25、26的擺梭驅動機構殼體32、33中。A needle gauge actuator 30 is used to drive a feed member having a feed member section 18, 19 which can be seen in the area of the substrate 4 in FIG. The shuttles 25, 26 are rotatably driven by a lower shaft 31 and a steering gear, which are mounted in the shuttle drive housings 32, 33 associated with the shuttles 25, 26, respectively.

兩個割線器元件用於切斷面線和底線，其中一個割線器組34整體在第36圖中示出，其中在第1和2圖中可以看到切割凸輪體(Schneidkurvenkörper)35，所述切割凸輪體能夠通過一行程電磁鐵36接通以操縱刮線刀37(參見第36圖)。所 述切割凸輪體35以不能相對轉動的方式與底軸31連接。Two secant elements are used to cut the upper and lower threads, one of which is shown in FIG. 36 as a whole, wherein a cutting cam body 35 can be seen in FIGS. 1 and 2, said The cutting cam body can be turned on by a stroke electromagnet 36 to operate the wire scraper 37 (see Fig. 36). Place The cutting cam body 35 is coupled to the bottom shaft 31 so as not to be relatively rotatable.

兩個割線器組34中的每一個用於切斷一對相互對應的面線和底線。Each of the two secant sets 34 is used to cut a pair of mutually facing upper and lower lines.

一針桿切換元件39的切換裝置38用於選擇性地停止兩個針桿9、10中的一個的縫紉工作，所述針桿切換元件整體在第3至7圖中示出並詳細地在第8至16圖中示出。利用切換裝置38可以在縫紉機1的三個工作狀態之間進行轉換。在第3至5圖中示出的切換裝置38的位置中，兩個針桿9、10都被接入、即參加縫紉工作。在第6至12圖中示出的切換裝置38的位置中，左針桿9被接入、即參加縫紉工作，而右針桿10被移出、即保持在上止點區域中的靜止位置中。相應地，還可以通過切換裝置38形成第三工作位置，其中接入右針桿10而移出左針桿9。The switching device 38 of a needle bar switching element 39 is used to selectively stop the sewing work of one of the two needle bars 9, 10, which is shown overall in Figures 3 to 7 and in detail It is shown in Figures 8 to 16. The switching device 38 can be used to switch between the three operating states of the sewing machine 1. In the position of the switching device 38 shown in Figures 3 to 5, both of the needle bars 9, 10 are engaged, i.e., participate in the sewing operation. In the position of the switching device 38 shown in Figures 6 to 12, the left needle bar 9 is engaged, i.e., participates in the sewing operation, and the right needle bar 10 is removed, i.e., held in the rest position in the top dead center region. . Correspondingly, a third working position can also be formed by the switching device 38, wherein the right needle bar 10 is accessed and the left needle bar 9 is removed.

這種類型的切換裝置的基本工作原理由DE-PS 955 023已知。The basic principle of operation of this type of switching device is known from DE-PS 955 023.

切換凸輪/接觸凸輪40用於使切換裝置38在三個工作狀態之間轉換。在接入兩個針桿9、10的工作位置中，切換凸輪40處於兩個切換桿/觸桿41之間，所述切換桿分別設置在兩個針桿9、10的上端部上。在切換裝置38的分別移出兩個針桿9、10之一的相應移出位置中，切換凸輪40通過下切換作用面(Schalt-Wirkfläche)42(參見第10和13圖)與在相應針桿的切換端部/觸端43上的切換桿41共同作用。一可人工操縱的操縱元件45(參見第3圖)用於使切換凸輪40在其不同的切換位置之間移動，所述操縱元件45具有一切換柄46和一復位柄47。操縱元件45通過一水準軸48、一切換桿49和一接通桿/起動桿50(參見第10圖)機械地與切換凸輪連接。在切換桿49與水準軸48相鉸接的區域中設有一重定彈簧51(參見第4圖)，所述復位彈簧51與一止擋單元52共同作用，所述復位彈簧51的彈簧端部53抵靠在所述止擋單元上。止擋單元52包括一用於切換凸輪40在兩個切換桿41之間的中間位置的擋桿54。The switching cam/contact cam 40 is used to switch the switching device 38 between three operating states. In the operating position in which the two needle bars 9, 10 are inserted, the switching cam 40 is situated between two switching levers/contact bars 41, which are respectively arranged on the upper ends of the two needle bars 9, 10. In the respective removal position of the switching device 38 which is removed from one of the two needle bars 9, 10 respectively, the switching cam 40 passes through the lower switching action surface (see FIGS. 10 and 13) and the corresponding needle bar The switching levers 41 on the switching end/contact end 43 cooperate. A manually operable operating element 45 (see Fig. 3) is used to move the switching cam 40 between its different switching positions, the operating element 45 having a switching handle 46 and a reset handle 47. The operating member 45 is mechanically coupled to the switching cam via a leveling shaft 48, a switching lever 49 and a lever/actuating lever 50 (see Fig. 10). A return spring 51 (see Fig. 4) is provided in the region of the switching lever 49 that is hinged to the leveling shaft 48. The return spring 51 cooperates with a stop unit 52, and the spring end portion 53 of the return spring 51 abuts. Relying on the stop unit. The stop unit 52 includes a lever 54 for switching the intermediate position of the cam 40 between the two switching levers 41.

一針傳送裝置55用於在針刺期間沿著縫紉方向或傳送方向15移動針桿9、10、即用於針傳送，所述針傳送裝置55的針桿側部件例如在第3和5圖中示出。所述針傳送通過使針桿座56圍繞一擺動軸線57擺動來進行，所述針桿座的形式是在外部引導兩個針桿9、10的搖板。擺動軸線57平行於支承板13。擺動軸線57與切換凸輪40相距大於10mm，在所示出的實施例中相距數釐米。圍繞擺動軸線57的擺動通過一沿著所述擺動軸線57延伸的推力軸58來驅動。推力軸58的針桿側端部以不能相對轉動的方式與引導搖板56連接。所述引導搖板56具有一上引導部段59，所述上引導部段59與一下引導部段60連接。所述下引導部段60又通過一操縱臂61與推力軸58以不能相對轉動的方式連接。A needle transport device 55 is used to move the needle bar 9, 10, for needle transport, in the sewing or transport direction 15 during needling, the needle bar side members of the needle transfer device 55 being for example in Figures 3 and 5. Shown in. The needle transfer is carried out by oscillating the needle bar holder 56 about a pivot axis 57 in the form of a rocker that guides the two needle bars 9, 10 externally. The pivot axis 57 is parallel to the support plate 13. The pivot axis 57 is at a distance of more than 10 mm from the switching cam 40, a few centimeters apart in the illustrated embodiment. The oscillation about the pivot axis 57 is driven by a thrust shaft 58 extending along the pivot axis 57. The needle bar side end portion of the thrust shaft 58 is coupled to the guide rocking plate 56 so as not to be relatively rotatable. The guiding rocker 56 has an upper guiding section 59 which is connected to the lower guiding section 60. The lower guiding section 60 is in turn connected to the thrust shaft 58 in a rotationally fixed manner via a steering arm 61.

切換凸輪40如此設計(參見第10和13圖)，使切換作用面42跟隨針桿的切換端部43的基於針傳送進行的擺動運動。在此，第10圖示出的切換凸輪40處於切換端部43的在針傳送過程末端處的針傳送位置中，即處於一針桿9、10的針側端部44在縫紉方向15上偏移最大的位置中。第13圖示出切換端部43的與針桿在與縫紉方向15相反的方向上的最大偏移相對應的位置。The switching cam 40 is designed in this way (see FIGS. 10 and 13) such that the switching action surface 42 follows the pivoting movement based on the needle transfer of the switching end 43 of the needle bar. Here, the switching cam 40 shown in Fig. 10 is in the needle transfer position of the switching end portion 43 at the end of the needle transfer process, i.e., at the needle side end portion 44 of a needle bar 9, 10 in the sewing direction 15 Move in the largest position. Fig. 13 shows the position of the switching end portion 43 corresponding to the maximum shift of the needle bar in the opposite direction to the sewing direction 15.

切換凸輪40以能圍繞一與擺動軸線57平行的切換凸輪擺動軸線62擺動的方式支承在固定在機體上的切換凸輪支架63上。為了進行切換凸輪40的切換操作，接通桿50通過一隨動件/結合件64和一在切換凸輪40中形成的操縱槽65與切換凸輪40共同作用，所述隨動件與接通桿50固定連接。這樣便與切換凸輪40圍繞切換凸輪擺動軸線62的擺動位置無關地、在接通桿50和切換凸輪40之間確保了可靠的致動力連接。The switching cam 40 is supported on the switching cam holder 63 fixed to the body so as to be swingable about a switching cam swing axis 62 parallel to the swing axis 57. In order to perform the switching operation of the switching cam 40, the closing lever 50 cooperates with the switching cam 40 via a follower/joint member 64 and a steering groove 65 formed in the switching cam 40, the follower and the lever 50 fixed connection. This ensures a reliable actuation connection between the switching lever 50 and the switching cam 40 independently of the pivoting position of the switching cam 40 about the switching cam pivot axis 62.

接通桿50通過一復位彈簧66與切換桿49連接(例如參見第7圖)。復位彈簧66確保了：當切換凸輪40在側向遇到相應待切換針桿9、10的切換桿41之一時，可以逆著復位彈簧66的預載一直避免切換凸輪40的朝向切換桿41的致動運動，直到切換桿41已經通過相應針桿9、10的縫紉運動向下運動到足以將切換凸輪40移置到在切換桿41上方的切換位置中。The switch lever 50 is coupled to the switch lever 49 via a return spring 66 (see, for example, FIG. 7). The return spring 66 ensures that when the switching cam 40 encounters one of the switching levers 41 of the respective needle bar 9 , 10 to be switched laterally, the pre-loading of the return spring 66 can be reversed to avoid the switching cam 41 facing the switching lever 41 . The movement is actuated until the switching lever 41 has moved downward by the sewing movement of the respective needle bar 9, 10 enough to displace the switching cam 40 into the switching position above the switching lever 41.

借助第3至16圖顯示用於針桿9、10的上下縫紉操作的曲柄傳動機構8的詳細結構。曲柄傳動機構8包括一滑塊/十字頭式的可被上下驅動地隨動件67，所述隨動件67(例如在第5圖中示出)在相應針桿9、10的縫紉狀態下、在一上運行止擋件與一能通過切換裝置38切換的下運行止擋件69之間軸向固定，所述上運行止擋件對於兩個針桿9、10中的每一個都設計成一個擋環68。下運行止擋件69各包括三個止擋球70，所述止擋球在釋放切換桿41時被推到一止擋位置。在所述止擋位置中，止擋球70向外伸出相應針桿9、10的殼壁外，使針桿9、10的由此得到的有效外徑大於滑塊67的相應針桿引導裝置的內徑。The detailed structure of the crank transmission mechanism 8 for the upper and lower sewing operations of the needle bars 9, 10 is shown by means of Figs. 3 to 16. The crank transmission mechanism 8 includes a slider/crosshead type follower 67 that can be driven up and down, the follower 67 (shown, for example, in Fig. 5) in the sewing state of the corresponding needle bar 9, 10 An axial fixation between an upper running stop and a lower running stop 69 switchable by means of a switching device 38 designed for each of the two needle bars 9, 10 Into a retaining ring 68. The lower running stops 69 each include three stop balls 70 that are pushed to a stop position when the switching lever 41 is released. In the stop position, the stop ball 70 projects outwardly beyond the wall of the respective needle bar 9, 10, so that the resulting effective outer diameter of the needle bar 9, 10 is greater than the corresponding needle bar guide of the slider 67. The inner diameter of the device.

兩個擋環68中的每一個都利用緊固螺栓軸向固定在相應的針桿9、10上。擋環68作為用於滑塊67的上運行止擋件。Each of the two retaining rings 68 is axially fixed to the respective needle bar 9, 10 by means of a fastening bolt. The retaining ring 68 acts as an upper running stop for the slider 67.

滑塊67通過一曲柄71與主軸(參見例如在第5圖中的主軸軸線5)驅動連接。The slider 67 is drivingly coupled to the spindle by a crank 71 (see, for example, the spindle axis 5 in Fig. 5).

引導搖板56的上引導部段59具有一下導棱72(例如參見第5圖)。引導搖板56的下引導部段60具有一上導棱73。所述上導棱73間隔開地設置在下導棱72的下方。The upper guiding section 59 of the guiding rocker 56 has a lower guiding edge 72 (see for example Fig. 5). The lower guiding section 60 of the guiding rocker 56 has an upper guiding edge 73. The upper guide ribs 73 are spaced apart below the lower guide rib 72.

切換裝置38針對兩個針桿9、10中的每一個設有一個能切換的下靜止止擋件74，所述下靜止止擋件可通過操縱相應的切換桿41而被設定到一止擋位置(參見第16圖)。兩個下靜止止擋件74中的每一個包括下運行止擋件69的止擋球類型的三個止擋球70。下靜止止擋件74的止擋球70在止擋位置中與下引導部段60的上導棱73的內斜切部共同作用，在所述止擋位置中所述止擋球又向外伸出相應針桿9、10的外殼壁之外。The switching device 38 is provided with a switchable lower stationary stop 74 for each of the two needle bars 9, 10, which can be set to a stop by actuating the respective switching lever 41 Location (see Figure 16). Each of the two lower stationary stops 74 includes three stop balls 70 of the stop ball type of the lower running stop 69. The stop ball 70 of the lower stationary stop 74 cooperates with the inner chamfer of the upper guide rib 73 of the lower guide section 60 in the stop position, in which the stop ball is outward again Extending beyond the outer wall of the respective needle bar 9, 10.

在靜止狀態下，即在操縱切換桿41的移出狀態下，被移出的針桿9、10在上靜止止擋件75與可切換的下靜止止擋件74之間被軸向地固定在引導搖板56上(參見第16圖)。上靜止止擋件75由相應擋環68的上邊緣給出。In the rest state, ie in the removed state of the actuating shifting lever 41, the removed needle bars 9, 10 are axially fixed between the upper stationary stop 75 and the switchable lower stationary stop 74. On the rocker 56 (see Figure 16). The upper stationary stop 75 is given by the upper edge of the respective retaining ring 68.

通過操縱相應切換桿41可能在一沉降的非工作位置與一止擋位置之間切換止擋球70，在所述非工作位置中所述止擋球不具有止擋作用，在所述止擋位置中所述止擋球70伸出相應針桿9、10的殼壁外並具有止擋作用。關於下靜止止擋件74，所述止擋作用意味著將止擋球70抵靠在引導搖板56的下引導部段60的上導棱73上。關於下運行止擋件69，所述止擋作用意味著將止擋球70抵靠在滑塊67上。By actuating the respective shift lever 41 it is possible to switch the stop ball 70 between a settling inoperative position and a stop position in which the stop ball has no stop action, in the stop The stop balls 70 in the position extend beyond the outer wall of the respective needle bar 9, 10 and have a stop function. With regard to the lower stationary stop 74, the stop action means that the stop ball 70 abuts against the upper guide rib 73 of the lower guiding section 60 of the guiding rocker 56. With regard to the lower running stop 69, the stop action means that the stop ball 70 abuts against the slider 67.

在下運行止擋件69或下靜止止擋件74的向外伸出相應針桿9、10的殼壁外的止擋位置中，止擋球70被朝向止擋位置彈性地偏壓。相應地，下靜止止擋件74設計成，使得所述下靜止止擋件朝向上靜止止擋件75對相應移出的針桿9、10進行彈性地偏壓。此外在針桿9和/或10運行時必須確保：擋環68的上邊緣不抵靠在下導棱72上。由此確保了：在與擋環68連動的滑塊67的上止點中，必須精確規定引導搖板56的上引導部段59的下導棱72距擋環68的上邊緣的距離。這還確保了，滑塊67不會在針桿9、10被移出時撞在夾緊於上靜止止擋件75和下靜止止擋件74之間的擋環68上。In the stop position of the lower running stop 69 or the lower stationary stop 74 which projects outwardly from the outer wall of the respective needle bar 9, 10, the stop ball 70 is resiliently biased towards the stop position. Correspondingly, the lower stationary stop 74 is designed such that the lower stationary stop elastically biases the respective removed needle bar 9, 10 towards the upper stationary stop 75. In addition, it must be ensured during operation of the needle bar 9 and/or 10 that the upper edge of the retaining ring 68 does not rest against the lower guide rib 72 . This ensures that in the top dead center of the slider 67 which is interlocked with the stop ring 68, the distance of the lower guide rib 72 of the upper guide section 59 of the guide rocker 56 from the upper edge of the retaining ring 68 must be precisely defined. This also ensures that the slider 67 does not hit the retaining ring 68 clamped between the upper stationary stop 75 and the lower stationary stop 74 when the needle bar 9, 10 is removed.

一距離調節裝置76用於調節距離，所述距離調節裝置76設計成一偏心調節裝置，這在第15圖中詳細示出。推力軸58的擺動軸線57(在第15圖中作為兩根輔助線57a和57b的交點示出)與主軸軸線5的水準位置水準相距一偏心量E(參見在第15圖中的輔助線5a)。通過對推力軸58的調節性轉動，可沿垂直方向相對於針桿9、10的位置來調節引導搖板56的位置、進而調節引導搖板56的上引導部段59的下導棱72距滑塊67的朝向所述下導棱72的上導棱的距離。所述距離最小大於擋環68在沿針桿9、10的軸向方向上的厚度。在所示實施例中，偏心量E為0.2mm，即小於1mm。A distance adjustment device 76 is used to adjust the distance, and the distance adjustment device 76 is designed as an eccentric adjustment device, which is shown in detail in FIG. The pivot axis 57 of the thrust shaft 58 (shown as the intersection of the two auxiliary lines 57a and 57b in Fig. 15) is offset from the level of the spindle axis 5 by an eccentric amount E (see the auxiliary line 5a in Fig. 15). ). By the modulating rotation of the thrust shaft 58, the position of the guiding rocker 56 can be adjusted in the vertical direction relative to the position of the needle bar 9, 10, thereby adjusting the distance of the lower guiding edge 72 of the upper guiding section 59 of the guiding rocker 56. The distance of the slider 67 towards the upper guide rib of the lower guide rib 72. The distance is at least greater than the thickness of the retaining ring 68 in the axial direction along the needle bars 9, 10. In the illustrated embodiment, the eccentricity E is 0.2 mm, i.e., less than 1 mm.

第17至24圖示出形式為連桿系77的針傳送裝置55的其它部件。所述連桿系77安裝在縫紉機1的立柱3中。連桿系77具有一驅動桿78，所述驅動桿78以不能相對轉動的方式與針距調節器傳動機構30的與推力軸58平行地水準延伸的驅動軸79連接。驅動桿78通過第一鉸接機構80與一拉桿81連接。拉桿81通過一形式為鉸接螺栓單元的另一鉸接機構82與一送針桿83鉸接。送針桿83在與另一鉸接機構82的鉸接軸線82a(參見第19圖)對置的端部上以不能相對轉動的方式與推力軸58連接。在連桿系77(在第17至19圖中示出)的針傳送調整中實現了：驅動軸79的間歇性運動轉化為驅動桿78的擺動運動(參見雙箭頭84)並相應地轉化為送針桿83的擺動運動(參見雙箭頭85)。相應地，間歇地驅動推力軸58，使得針桿9、10在例如兩個在第9和12圖中示出的傳送位置之間進行擺動傳送運動。17 to 24 illustrate other components of the needle transfer device 55 in the form of a linkage 77. The link 77 is mounted in the column 3 of the sewing machine 1. The linkage 77 has a drive rod 78 that is coupled to the drive shaft 79 of the pitch adjuster transmission 30 that extends horizontally in parallel with the thrust shaft 58 in a relatively rotatable manner. The drive rod 78 is coupled to a pull rod 81 by a first hinge mechanism 80. The pull rod 81 is hinged to a needle feed lever 83 by a further hinge mechanism 82 in the form of an articulated bolt unit. The needle feed lever 83 is coupled to the thrust shaft 58 in a rotationally fixed manner at an end opposite the hinge axis 82a of the other hinge mechanism 82 (see Fig. 19). In the needle transfer adjustment of the linkage 77 (shown in Figures 17 to 19) it is achieved that the intermittent movement of the drive shaft 79 translates into the oscillating movement of the drive rod 78 (see double arrow 84) and is correspondingly converted into The swinging motion of the needle bar 83 (see double arrow 85). Accordingly, the thrust shaft 58 is intermittently driven such that the needle bars 9, 10 perform a swing transmission movement between, for example, two transfer positions shown in Figs.

第20至22圖示出了連桿系77的非工作位置，在該位置中針傳送裝置55不工作、即不進行針傳送。在所述非工作位置中，拉桿81不對送針桿83施加驅動作用，使所述送針桿即使在驅動桿78進行擺動運動84時仍保持靜止。在所述非工作位置中，送針桿83通過鉸接螺栓82固定地與縫紉機1的機架部件85a連接。Figures 20 through 22 illustrate the inoperative position of the linkage 77 in which the needle delivery device 55 does not operate, i.e., does not perform needle delivery. In the inoperative position, the pull rod 81 does not exert a driving action on the needle feed lever 83, so that the needle feed lever remains stationary even when the drive lever 78 performs the swing motion 84. In the inoperative position, the needle feed lever 83 is fixedly coupled to the frame member 85a of the sewing machine 1 by a hinge bolt 82.

在非工作位置中，拉桿81通過一長形孔/銷連接結構86與送針桿83連接，所述長形孔/銷連接結構具有一固定在送針桿83上的滑銷87和一形成在拉桿81上的長形孔88。滑銷87被壓入送針桿83中。長形孔88設計成拉桿81的引導叉。由於長形孔/銷連接結構86，拉桿81的縱向運動(參見雙箭頭89)空運行(不對其它部分起作用)，其中同時保證拉桿81在送針桿83上。In the inoperative position, the pull rod 81 is coupled to the needle feed bar 83 by an elongated hole/pin connection structure 86 having a slide pin 87 secured to the needle feed bar 83 and a forming An elongated hole 88 in the pull rod 81. The slide pin 87 is pressed into the needle feed bar 83. The elongated hole 88 is designed as a guide fork of the pull rod 81. Due to the elongated hole/pin connection structure 86, the longitudinal movement of the tie rod 81 (see double arrow 89) is idle (without other parts), while at the same time ensuring that the pull rod 81 is on the needle feed bar 83.

第23和24圖示出連桿系77的轉換位置，用以在根據第17至19圖所示的傳送位置與根據第20至22圖所示的非工作位置之間轉換所述連桿系。在此所述鉸接螺栓單元82被拆鬆。在第24圖中，可使送針桿83從根據第20至22圖所示的固定位置起順時針擺動，直到到達根據第23和24圖所示的安裝位置。在所述安裝位置中，滑銷87與長形孔88不接合，從而可以在第20至24圖所示的非工作位置與在第17至19圖所示的傳送位置之間轉換拉桿。23 and 24 show the switching position of the link 77 for switching the link between the transfer position shown in Figs. 17 to 19 and the non-operating position shown in Figs. 20 to 22. . Here, the hinge bolt unit 82 is detached. In Fig. 24, the needle feed lever 83 can be swung clockwise from the fixed position shown in Figs. 20 to 22 until reaching the mounting position shown in Figs. 23 and 24. In the mounted position, the slide pin 87 is not engaged with the elongated hole 88, so that the tie rod can be switched between the inoperative position shown in Figs. 20 to 24 and the transfer position shown in Figs.

下麵借助第25至35圖闡述擺梭組件24，除了兩個擺梭25、26外，所述擺梭組件還包括擺梭驅動組件。兩個擺梭25、26分別由擺梭支座90、91支承。在此，擺梭支座90屬於擺梭25和針桿9並且是擺梭驅動機構殼體32的一部分。擺梭支座91屬於擺梭26和針桿10並且是擺梭驅動機構殼體33的一部分。The shuttle assembly 24 is explained below with the aid of Figures 25 to 35, in addition to the two shuttles 25, 26, which also comprise a shuttle drive assembly. The two shuttles 25, 26 are respectively supported by the shuttle supports 90, 91. Here, the shuttle support 90 belongs to the shuttle 25 and the needle bar 9 and is part of the shuttle drive mechanism housing 32. The shuttle support 91 belongs to the shuttle 26 and the needle bar 10 and is part of the shuttle drive mechanism housing 33.

第26至35圖示出了底軸31以及在擺梭支座90的區域中安裝在該底軸上的各部件。在擺梭支座91的區域中具有相應的、關於垂直軸線以180°旋轉對稱的佈置結構。Figures 26 to 35 show the bottom shaft 31 and the components mounted on the bottom shaft in the region of the shuttle support 90. In the region of the shuttle support 91 there is a corresponding arrangement which is rotationally symmetrical with respect to the vertical axis at 180°.

兩個擺梭支座90、91彼此間隔地固定在底軸31上，所述底軸與針11、12的運動同步地、即與主軸同步地轉動。The two shuttle supports 90, 91 are fixed to the bottom shaft 31 at a distance from each other, which rotates in synchronism with the movement of the needles 11, 12, i.e., synchronously with the spindle.

在兩個擺梭支座90、91各自的區域中，底軸31分別由以不能相對轉動的方式分別與底軸31連接的空心軸段92、93包圍。分別通過一個與相應的空心軸段92、93以不能相對轉動的方式連接的錐齒輪94(參見第26至28圖)，空心軸段92、93通過一擺梭驅動軸與相應的擺梭25、26形成驅動連接。即各空心軸段92、93分別與相應的擺梭25、26同步地旋轉。In the respective regions of the two shuttle supports 90, 91, the bottom shafts 31 are each surrounded by hollow shaft segments 92, 93 which are respectively connected to the bottom shaft 31 in a rotationally fixed manner. The bevel gears 94 (see FIGS. 26 to 28) are connected in a rotationally fixed manner to the respective hollow shaft sections 92, 93, respectively, and the hollow shaft sections 92, 93 pass through a shuttle drive shaft and the corresponding shuttle 25 , 26 forms a drive connection. That is, each of the hollow shaft segments 92, 93 rotates synchronously with the respective shuttles 25, 26, respectively.

一緊固螺桿95用於將擺梭支座90、91固定在底軸31上，所述緊固螺桿沿徑向穿過包圍相應空心軸段92、93的調整套筒96而被擰緊。為此，調整套筒96具有沿徑向的內螺紋，所述內螺紋與螺桿95的外螺紋互補。兩個調整套筒96中的每一個被配屬給兩個擺梭支座90、91之一並固定在其上。A fastening screw 95 is used to secure the shuttle bearings 90, 91 to the bottom shaft 31 which is screwed radially through an adjustment sleeve 96 surrounding the respective hollow shaft segments 92, 93. To this end, the adjustment sleeve 96 has internal threads in the radial direction which are complementary to the external threads of the screw 95. Each of the two adjustment sleeves 96 is assigned to one of the two shuttle supports 90, 91 and is fixed thereto.

螺桿95的具有端側緊固面97的緊固部段穿過相應的空心軸段92、93的通孔98。如第28圖和第31至33圖表明：通孔98不允許相應的空心軸段92、93具有軸向遊隙，但是允許在圍繞底軸軸線98a的周向方向上具有遊隙。The fastening section of the screw 95 with the end-side fastening surface 97 passes through the through-opening 98 of the respective hollow shaft section 92, 93. As shown in Figures 28 and 31 to 33, the through holes 98 do not allow the respective hollow shaft segments 92, 93 to have axial play, but allow for play in the circumferential direction about the bottom shaft axis 98a.

緊固面97貼靠在與所述緊固面互補的對接面99上，所述對接面在底軸31的殼壁100中例如設計成平面銑削部。代替平面的設計方案，可將對接面99設計成“V”槽。總之，對接面99不設計成關於底軸31的旋轉軸線98a旋轉對稱。On the abutment surface 99 which is complementary to the fastening surface, the abutment surface is designed, for example, as a face milling in the housing wall 100 of the lower shaft 31 . Instead of a planar design, the mating face 99 can be designed as a "V" slot. In summary, the abutment surface 99 is not designed to be rotationally symmetrical about the axis of rotation 98a of the bottom shaft 31.

調整套筒96是固定裝置101的一部分，所述固定裝置用於即使在從對接面99拆鬆緊固螺桿95的緊固面97時，也保持相應空心軸段92、93圍繞旋轉軸線98a相對於緊固螺桿95的周向相對位置。The adjustment sleeve 96 is part of a fixture 101 for maintaining the respective hollow shaft segments 92, 93 about the axis of rotation 98a relative to the fastening surface 97 of the fastening screw 95 when it is detached from the abutment surface 99. The circumferential relative position of the screw 95 is tightened.

除調整套筒96外，固定裝置101還包括兩個另外的緊固螺桿102。所述緊固螺桿是止動件，所述止動件將調整套筒96固定在其相對於相應的空心軸段92、93的周向相對位置中。兩個緊固螺桿102分別經過調整套筒96的內螺紋，所述內螺紋與相應緊固螺桿102的外螺紋互補。緊固螺桿102的端側的緊固面103貼靠在相應的空心軸段92、93的外殼壁104上。與相應的緊固螺桿102夾緊相應的空心軸段92、93的區域相鄰，在相應的空心軸段92、93中設有一形式為凹口105的壁厚縮減部。In addition to the adjustment sleeve 96, the fixture 101 also includes two additional fastening screws 102. The fastening screw is a stop that secures the adjustment sleeve 96 in its circumferentially opposite position relative to the respective hollow shaft segments 92,93. The two fastening screws 102 respectively pass through internal threads of the adjustment sleeve 96, which are complementary to the external threads of the respective fastening screw 102. The fastening faces 103 of the end faces of the fastening screws 102 abut against the outer casing wall 104 of the respective hollow shaft sections 92, 93. Adjacent to the region of the respective fastening screw 102 clamping the respective hollow shaft segments 92, 93, a wall thickness reduction in the form of a recess 105 is provided in the respective hollow shaft segments 92, 93.

對接面99沿著底軸31的旋轉軸線98a的長度在第28圖中以“S”標註。在緊固螺桿95相對於底軸31的軸向相對位置(在第28圖中示出)中，對接面99在軸向方向上向左、向右分別向緊固螺桿95外伸出一可能的軸向移動距離“U”。在緊固螺桿95的軸向高度上，空心軸段92、93分別具有一形式為環繞的凸台105a的、內壁厚增大部。The length of the abutment surface 99 along the axis of rotation 98a of the bottom shaft 31 is indicated by "S" in Fig. 28. In the axial relative position of the fastening screw 95 with respect to the bottom shaft 31 (shown in FIG. 28), the abutting faces 99 project outwardly to the left and right of the fastening screw 95 in the axial direction, respectively. The axial movement distance is "U". At the axial height of the fastening screw 95, the hollow shaft segments 92, 93 each have an enlarged inner wall thickness in the form of a circumferential projection 105a.

通過拆鬆相應的緊固螺桿95，可使相應的擺梭支座90、91相對於底軸31沿軸向移動，從而能夠特別是調節兩個擺梭尖端27之間的間距。因為相應的空心軸段92、93通過調整套筒96和所述兩個另外的緊固螺桿102與緊固螺桿95固定連接，所以基於在調節過程中由於所述面97、99彼此互補而對緊固螺桿95相對於底軸31的周向位置的保持，在所述調節過程中相應的空心軸段92、93相對於底軸31的周向相對位置不變。由此在調節兩個擺梭支座90、91之間的距離並擰緊緊固螺桿95之後，(仍)確保擺梭尖端27與針桿9、10的針桿行程同步以準確地抓住面線。By detaching the respective fastening screws 95, the respective shuttle bearings 90, 91 can be moved axially relative to the bottom shaft 31, so that in particular the spacing between the two shuttle tips 27 can be adjusted. Since the respective hollow shaft sections 92, 93 are fixedly connected to the fastening screw 95 by the adjusting sleeve 96 and the two further fastening screws 102, it is based on the fact that the faces 97, 99 are complementary to each other during the adjustment process. The retention of the fastening screw 95 relative to the circumferential position of the bottom shaft 31 does not change the circumferential relative position of the respective hollow shaft segments 92, 93 relative to the bottom shaft 31 during said adjustment. Thus, after adjusting the distance between the two shuttle supports 90, 91 and tightening the fastening screw 95, (still) ensuring that the shuttle tip 27 is synchronized with the needle bar stroke of the needle bars 9, 10 to accurately grasp the face line.

如第32和33圖所示，為了調節針桿行程可以圍繞旋轉軸線98a從一根據第31圖的中間位置起調節相應的空心軸段92。第32圖示出在第一周向方向上以圓周角V進行的這種調節，而第33圖示出在一相反的周向方向上以相同的值V進行的反向調節。根據調節值V，可以改變、進而調節擺梭尖端27與相應的針桿9、10的針桿行程位置的同步。As shown in Figures 32 and 33, in order to adjust the needle bar stroke, the respective hollow shaft segment 92 can be adjusted from an intermediate position according to Fig. 31 about the axis of rotation 98a. Fig. 32 shows such adjustment at the circumferential angle V in the first circumferential direction, and Fig. 33 shows the reverse adjustment with the same value V in the opposite circumferential direction. Depending on the adjustment value V, the synchronization of the shuttle tip 27 with the needle bar stroke position of the respective needle bar 9, 10 can be varied and thus adjusted.

凹口105防止在相應的緊固螺桿102的緊固面103的外邊緣區域中出現與緊固面103的摩擦鎖合(reibschlüssig)接觸，進而防止在擰緊緊固螺桿102時相應的空心軸段92、93相對於底軸31的意外轉動。The recesses 105 prevent frictional engagement with the fastening surface 103 in the region of the outer edge of the fastening surface 103 of the fastening screw 102 , thereby preventing the corresponding hollow shaft section when the fastening screw 102 is tightened. Unexpected rotation of 92, 93 relative to the bottom shaft 31.

在移動相應的擺梭支座90、91之前還拆鬆固定螺栓106，利用所述固定螺栓106使擺梭支座90、91在機架側與基板4螺紋連接。The fixing bolts 106 are also loosened before moving the corresponding shuttle supports 90, 91, and the shuttle bolts 90, 91 are screwed to the base plate 4 on the frame side by the fixing bolts 106.

在相應的空心軸段92、93上除安裝有錐齒輪94外，還分別安裝有一梭殼開啟器的盤形凸輪107。In addition to the bevel gears 94 mounted on the respective hollow shaft sections 92, 93, a disc cam 107 of a bobbin case opener is attached.

在擺梭支座90、91的區域中，底軸31分別通過一軸承108支承。In the region of the shuttle bearings 90, 91, the bottom shaft 31 is supported by a bearing 108, respectively.

第36至59圖完整地或者以子元件示出割線器元件34。在起升電磁鐵36的啟動位置中，通過使一跟隨體109在切割凸輪體35的切割凸輪110上滾動引起刮線刀37的切割運動。跟隨體109通過一傳動元件111與行程電磁鐵36的舉升頭112以及刮線刀37作用連接(參見第36圖)。傳動元件111 以固定在機體上的方式支承，使所述傳動元件能圍繞傳動元件111的一軸段113進行轉動運動。Figures 36 to 59 show the secant element 34 in its entirety or in sub-elements. In the activated position of the lift electromagnet 36, the cutting motion of the scraper blade 37 is caused by rolling a follower body 109 on the cutting cam 110 of the cutting cam body 35. The follower body 109 is operatively coupled to the lift head 112 of the stroke electromagnet 36 and the wire scraper 37 via a transmission element 111 (see Fig. 36). Transmission element 111 Supported in a manner fixed to the body, the transmission element can be rotated about a shaft segment 113 of the transmission element 111.

除了形式為可動割線刀的刮線刀37外，割線器元件34的割線裝置114還包括一通過相應的擺梭支座90、91牢固固定在縫紉機1的機架上的對應刀115。In addition to the scraper blade 37 in the form of a movable secant blade, the secant device 114 of the secant member 34 also includes a corresponding knife 115 that is securely attached to the frame of the sewing machine 1 by respective shuttle supports 90, 91.

第39和40圖示出緊接在進行割線後的割線裝置114。刮線刀37的切割刃116在割線時與對應刀115的對應刃/反向刃共同作用。切割刃116由刮線刀37的集槽(fanggut)118和刮線刀37的上刮線刀壁119a的切割壁段119界定出，所述切割壁段119與刮線刀37在其切割運動中的運動平面120(參見第40圖)重合。在切割刃116的相對側、即與切割壁段119對置的一側上，刮線刀壁119a過渡到與運動平面120相間隔的間隔壁段121。所述間隔壁段121通過對上刮線刀壁119a進行凹面磨削而形成。由於間隔壁段121，刮線刀在割線時僅在切割刃116附近與對應刀115接觸，所述刮線刀在割線時與第42圖中的運動箭頭122相對應地進行運動。Figures 39 and 40 show the secant device 114 immediately after the secant is performed. The cutting edge 116 of the squeegee 37 cooperates with the corresponding edge/reverse edge of the corresponding knives 115 when securing. The cutting edge 116 is defined by a slab of the squeegee 37 and a cutting wall section 119 of the upper squeegee wall 119a of the squeegee 37, the cutting wall section 119 and the squeegee 37 being in its cutting motion The motion plane 120 (see Fig. 40) in the coincidence. On the opposite side of the cutting edge 116, i.e. on the side opposite the cutting wall section 119, the wire cutter wall 119a transitions into a dividing wall section 121 spaced from the moving plane 120. The partition wall section 121 is formed by concavely grinding the upper wire cutter wall 119a. Due to the partition wall section 121, the wire scraping blade is in contact with the corresponding blade 115 only in the vicinity of the cutting edge 116 at the time of secant, and the wire scraping blade moves in correspondence with the moving arrow 122 in Fig. 42 at the time of secant.

間隔壁段121距運動平面120(參見第40圖)的距離A在數學意義上嚴格單調地隨著該間隔壁段121距切割刃116的距離的增大而增加。The distance A of the partition wall section 121 from the plane of motion 120 (see Fig. 40) is mathematically strictly monotonously increased as the distance of the partition wall section 121 from the cutting edge 116 increases.

在間隔壁段121上設有一與切割刃116相鄰的調節區域123(參見第50圖)。所述調節區域在第50圖中通過兩根豎直短界線表示，所述界線從間隔壁段121向下延伸。調節區域123距切割刃116的距離B(參見第50圖)被設定成，當刮線刀37在調節區域123中不受力地、即無壓力作用的情況下貼靠在對應刀115上時，存在正確的切割力、即正確的切割壓力，所述切割壓力在割線時由刮線刀37在切割刃116上施加給對應刀115。調節區域123通過鐳射刻印而被標記在上刮線刀壁119a上。用於割線的正確的切割壓力基於對應刃117在調節區域123中的高度與切割刃116的高度之間過切/重合量/相交量(berschneidung)C(參見第50圖)而建立。An adjustment region 123 adjacent to the cutting edge 116 is provided on the partition wall portion 121 (see Fig. 50). The adjustment area is indicated in Fig. 50 by two vertical short boundaries which extend downward from the partition wall section 121. The distance B of the adjustment region 123 from the cutting edge 116 (see Fig. 50) is set such that when the wire scraper 37 abuts against the corresponding knife 115 without force, i.e. without pressure, in the adjustment region 123 There is a correct cutting force, i.e. the correct cutting pressure, which is applied to the corresponding knife 115 by the scraping blade 37 on the cutting edge 116 at the time of secant. The adjustment area 123 is marked on the upper wire cutter wall 119a by laser marking. The correct cutting pressure for the secant is based on the amount of overcut/coincidence/intersection between the height of the corresponding edge 117 in the adjustment region 123 and the height of the cutting edge 116 ( Berschneidung) C (see Figure 50) was established.

為了調節切割力，可在多個對應刀位置之間移動對應刀115，所述多個對應刀位置對應不同的對應刃117距運動平面120的距離、即不同的過切C。為此，對應刀115能圍繞具有擺動軸線125的擺動關節124在不同的擺動位置之間移動，並能通過固定螺栓126、即通過切割力調節螺栓固定以使一給定的切割力固定不變。固定螺栓126同時用於將對應刀115固定在對應刀支架127上、進而通過相應的擺梭支座90、91固定在縫紉機1的機架上。通過拆鬆固定螺栓126同時允許對應刀115沿著在第42圖中通過雙箭頭128示出的運動方向相對於對應刀支架127進行相對定位。在定位方向128上，還可以沿著擺動軸線125進行對應刀115的軸向相對定位。In order to adjust the cutting force, a corresponding knife 115 can be moved between a plurality of corresponding knife positions, the plurality of corresponding knife positions corresponding to the distance of the different corresponding edges 117 from the plane of motion 120, ie different overcuts C. To this end, the corresponding knife 115 is movable between different pivoting positions about the pivot joint 124 having the pivot axis 125 and can be fixed by the fixing bolt 126, ie by the cutting force adjustment bolt, to fix a given cutting force. . The fixing bolts 126 are simultaneously used to fix the corresponding cutters 115 to the corresponding knife holders 127, and are thus fixed to the frame of the sewing machine 1 by the respective shuttle supports 90, 91. By relatively loosening the fixing bolts 126 while allowing the corresponding knife 115 to be positioned relative to the corresponding knife holder 127 along the direction of motion indicated by the double arrow 128 in FIG. In the positioning direction 128, the axial relative positioning of the corresponding knife 115 can also be performed along the pivot axis 125.

擺動關節124具有一帶鉸接軸線129的鉸接軸。對應刀115通過緊固螺栓130固定在所述鉸接軸上。The oscillating joint 124 has an articulated shaft with a hinge axis 129. The corresponding knife 115 is fixed to the hinge shaft by a fastening bolt 130.

為了調節切割力，首先拆鬆固定螺栓126。然後相對於對應刀115移動刮線刀37，直到對應刃117與上刮線刀壁119a上的調節區域123相對置。然後，圍繞擺動軸線125一直擺動對應刀115，直到對應刃117在調節區域123中央、在無載荷的情況下貼靠在上刮線刀壁119a上。然後，在保持對應刀位置的情況下擰緊固定螺栓126。In order to adjust the cutting force, the fixing bolt 126 is first loosened. The scraper blade 37 is then moved relative to the corresponding knife 115 until the corresponding edge 117 is opposed to the adjustment region 123 on the upper wire cutter wall 119a. Then, the corresponding knife 115 is swung around the pivot axis 125 until the corresponding edge 117 abuts against the upper scraper wall 119a in the center of the adjustment region 123 without load. Then, the fixing bolt 126 is tightened while maintaining the corresponding knife position.

在進行割線時，首先刮線刀37處於第43至47圖所示的位置中。由於在間隔壁段121中的凹面磨削，刮線刀37開始不與對應刀115接觸。在刮線刀37割線運動的開始階段也是如此，直到刮線刀37相對於對應刀115移動到刮線刀37在調節區域123中與對應刀115接觸的程度。在刮線刀37的另一運動中，基於過切C建立一預定的切割力，從而當刮線刀37的切割刃116經過對應刀115的對應刃117時，正確地進行割線。When the secant is performed, first, the squeegee 37 is in the position shown in Figs. 43 to 47. Due to the concave grinding in the partition wall section 121, the scraper blade 37 does not start to come into contact with the corresponding knife 115. The same is true at the beginning of the secant movement of the squeegee 37 until the squeegee 37 is moved relative to the corresponding knives 115 to the extent that the squeegee 37 is in contact with the corresponding knives 115 in the adjustment region 123. In another movement of the wire scraper 37, a predetermined cutting force is established based on the overcut C so that when the cutting edge 116 of the wire scraper 37 passes the corresponding edge 117 of the corresponding blade 115, the secant is correctly performed.

間隔壁段121的凹面磨削使刮線刀37的第一運動部段能在切割運動時容易地通過。The concave grinding of the partition wall section 121 enables the first moving section of the scraper blade 37 to pass easily during the cutting movement.

割線裝置114除具有刮線刀37和對應刀115之外還具有一由彈性材料、例如彈簧鋼製成的線夾131。所述線夾與刮線刀37──該刮線刀形成一對應體──共同作用以夾緊在刮線刀37和對應刀115之間切斷的線。線夾131設計為片簧並且具有一保持彈簧端部132(參見第59圖)和一自由夾緊端部133，利用所述保持彈簧端部將線夾131固定在一在此用作支承體的對應刀支架127上。The secant device 114 has a wire clamp 131 made of an elastic material such as spring steel in addition to the wire scraper 37 and the corresponding blade 115. The clip cooperates with a scraper 37, which forms a counterpart, to cooperate to grip the line cut between the scraper 37 and the corresponding knife 115. The clip 131 is designed as a leaf spring and has a retaining spring end 132 (see Fig. 59) and a free clamping end 133 with which the clip 131 is secured for use as a support Corresponding to the knife holder 127.

一例如在第55圖中示出的調節元件134用於調節線夾131相對刮線刀37的夾緊壓力。調節元件134可被移動並在兩個彈簧端部132、133之間對線夾131作用一可調節的壓力。調節元件134設計成擰入對應刀支架127中並自鎖的調節螺栓。An adjustment element 134, such as that shown in Fig. 55, is used to adjust the clamping pressure of the clamp 131 relative to the scraper blade 37. The adjustment member 134 can be moved and exert an adjustable pressure on the clamp 131 between the two spring ends 132, 133. The adjustment element 134 is designed to be screwed into an adjustment bolt corresponding to the knife holder 127 and self-locking.

在根據第53至55圖的位置中，調節螺栓134被設定在一非工作位置且不與線夾131接合。在所述位置中，只要刮線刀位於在割線後的位置中，線夾131的夾緊端部133便在較小的線張力下貼靠在刮線刀37上。In the position according to Figs. 53 to 55, the adjusting bolt 134 is set in an inoperative position and is not engaged with the clip 131. In this position, the clamping end 133 of the clamp 131 abuts against the scraper blade 37 with a small thread tension as long as the wire cutter is in the position after the secant.

第56至59圖示出與線夾131接合的調節元件134。線夾131在保持彈簧端部132與夾緊端部133之間由於調節元件134的作用而被從對應刀支架127的支承壁135提起，因而只要刮線刀處於在割線後的位置，夾緊端部133便較強地壓靠在刮線刀37上。通過調節元件134與線夾131的接合強度能對在夾緊端部133和刮線刀37之間的載荷/應力進行調節。這種調節可以線上夾131的相對於刮線刀37的夾緊位置中進行。The adjustment elements 134 that engage the clip 131 are illustrated in FIGS. 56-59. The clamp 131 is lifted between the retaining spring end 132 and the clamp end 133 from the support wall 135 of the corresponding knife holder 127 by the action of the adjustment member 134, so that the clamp is clamped as long as it is in the position after the secant The end 133 is pressed strongly against the wire scraper 37. The load/stress between the clamp end 133 and the wire scraper 37 can be adjusted by the engagement strength of the adjustment member 134 with the wire clamp 131. This adjustment can be made in the clamping position of the wire clamp 131 relative to the wire scraper 37.

第60至66圖詳細示出在針板14的區域中的支承板13。針板14固定在支承板13上、進而固定在基板4上。針板14的上側與包圍所述針板的支承板13的上側齊平。The figures 60 to 66 show the support plate 13 in the region of the needle plate 14 in detail. The needle plate 14 is fixed to the support plate 13 and further fixed to the substrate 4. The upper side of the needle plate 14 is flush with the upper side of the support plate 13 surrounding the needle plate.

在第61圖中，鄰接針板14的左側和右側，兩個可從支承板13上取下的針板滑塊136、137固定在支承板13上、進而固定在基板4上。兩個針板滑塊136、137的上側與針板14的上側齊平並且與包圍針板滑塊136、137的支承板13的上側齊平。兩個針板滑塊136、137形成能從安裝在基板殼體中的縫紉機部件、特別是擺梭25、26上取下的蓋件。In Fig. 61, adjacent to the left and right sides of the needle plate 14, two needle plate sliders 136, 137 which can be removed from the support plate 13 are fixed to the support plate 13 and further fixed to the substrate 4. The upper sides of the two needle plate sliders 136, 137 are flush with the upper side of the needle plate 14 and flush with the upper side of the support plate 13 surrounding the needle plate sliders 136, 137. The two needle plate sliders 136, 137 form a cover member that can be removed from the sewing machine components, particularly the shuttles 25, 26, mounted in the substrate housing.

分別通過一個固定結構138(參見第63和64圖)來防止兩個針板滑塊136、137相對於支承板13、進而相對於基板4相對移動。下面，結合在第61圖中位於右側的針板滑塊137來對固定結構138進行闡述。另外，以關於在兩個針眼20、21之間的中點中心對稱的方式，為在第61圖中位於左側的針板滑塊136設置固定結構138。The two needle plate sliders 136, 137 are prevented from moving relative to the support plate 13, and thus relative to the substrate 4, by a fixed structure 138 (see Figures 63 and 64), respectively. Next, the fixed structure 138 will be described in conjunction with the needle plate slider 137 located on the right side in Fig. 61. Further, a fixing structure 138 is provided for the needle plate slider 136 located on the left side in Fig. 61 in a manner symmetrical about the center of the midpoint between the two eyelets 20,21.

固定結構138具有一固定針板的鎖定凸起139，所述鎖定凸起為固定在針板滑塊137上的片簧140的一體部段。片簧140在第63圖中示出的固定位置中被預載入。在所述固定位置中，鎖定凸起139接合鎖定凹槽141的沉割部。鎖定凹槽141是鎖定板141a的一部分，所述鎖定板通過一固定螺栓141b固定在支承板13上、進而固定在基板4上。片簧140安裝在針板滑塊137與一夾板142之間，所述夾板能以垂直於針板滑塊137的表面的方式相對針板滑塊移動。The securing structure 138 has a locking projection 139 that secures the needle plate, the locking projection being an integral section of the leaf spring 140 that is secured to the needle plate slider 137. The leaf spring 140 is preloaded in the fixed position shown in Fig. 63. In the fixed position, the locking projection 139 engages the undercut of the locking groove 141. The locking groove 141 is a part of the locking plate 141a, and the locking plate is fixed to the support plate 13 by a fixing bolt 141b, and is fixed to the substrate 4. The leaf spring 140 is mounted between the needle plate slider 137 and a clamping plate 142 which is movable relative to the needle plate slider in a manner perpendicular to the surface of the needle plate slider 137.

在固定結構138的固定位置(在第63圖中示出)中，針板滑塊137不能沿運動方向143移動，即不能離開針板14。在該固定位置中，防止針板滑塊137相對於支承板13、進而相對於基板4的相對移動。In the fixed position of the fixed structure 138 (shown in Fig. 63), the needle plate slider 137 cannot move in the moving direction 143, i.e., cannot leave the needle plate 14. In this fixed position, relative movement of the needle plate slider 137 with respect to the support plate 13, and thus with respect to the substrate 4, is prevented.

利用一去固定結構144可在固定位置和釋放位置(在第64圖中示出)之間轉換固定結構138，在所述釋放位置中針板滑塊137可沿運動方向143相對於支承板13、進而相對於基板4相對移動。如第64圖所示，在釋放位置中鎖定凸起139脫離鎖定凹槽141。The fixed structure 138 can be switched between a fixed position and a released position (shown in FIG. 64) by a de-fixing structure 144 in which the needle plate slider 137 can be moved relative to the support plate 13 in the direction of motion 143 Further, it moves relative to the substrate 4. As shown in Fig. 64, the locking projection 139 is disengaged from the locking groove 141 in the release position.

去固定結構144通過一去固定鍵來實施，所述去固定鍵可從支承板13的上側、進而從基板4的上側接觸到，並與鎖定凸起139共同作用。這種共同作用通過以下方式間接地實現：通過去固定結構144(在第63圖中)以及從上方通過致動壓頭145的施壓使夾板142、進而使具有鎖定凸起139的片簧140向下移動到釋放位置(根據第64圖)。在到達釋放位置後，針板滑塊137能與去固定結構144一起在運動方向143上相對於支承板13移動、進而離開針板14。The de-fixing structure 144 is implemented by a de-fixing key that is accessible from the upper side of the support plate 13, and thus from the upper side of the substrate 4, and cooperates with the locking projections 139. This interaction is achieved indirectly by de-fixing the structure 144 (in Figure 63) and by applying pressure from the top by actuating the ram 145 to cause the splint 142, and thus the leaf spring 140 with the locking projection 139 Move down to the release position (according to Figure 64). Upon reaching the release position, the needle plate slider 137 can move with the de-fixing structure 144 in the direction of motion 143 relative to the support plate 13 and thus away from the needle plate 14.

在針板滑塊137沿運動方向143滑動時，所述針板滑塊在支承板13上、進而在基板4上通過一引導裝置146來引導。所述引導裝置通過在支承板13中、因而在基板4中的導槽147形成，作為片簧140的一部分的彈簧148接合到所述導槽中。由於片簧140在引導裝置146中的彈性作用，可以利用相應的調節螺栓來調節針板滑塊137的上側相對於支承板13的上側的齊平位置。When the needle plate slider 137 slides in the direction of movement 143, the needle plate slider is guided on the support plate 13 and thus on the substrate 4 by a guiding device 146. The guiding device is formed by a guide groove 147 in the support plate 13, and thus in the substrate 4, into which the spring 148, which is part of the leaf spring 140, is engaged. Due to the elastic action of the leaf spring 140 in the guiding device 146, the corresponding adjusting bolt can be used to adjust the flush position of the upper side of the needle plate slider 137 with respect to the upper side of the support plate 13.

在工廠中組裝縫紉機1時，利用一銷桿149作為輔助工具以調節在鎖定凸起139和鎖定凹槽141之間的遊隙，所述銷桿從上方通過一孔隙150和一配合孔151來穿過針板滑塊137和片簧140。通過銷桿149的擺動運動(參見在第62圖中的雙箭頭152)，在針板滑塊137貼靠在針板14上的情況下可以精確地預定鎖定凸起139在運動方向143上距鎖定凹槽141的距離。When the sewing machine 1 is assembled in the factory, a pin 149 is used as an auxiliary tool to adjust the play between the locking projection 139 and the locking groove 141 which passes through an aperture 150 and a fitting hole 151 from above. It passes through the needle plate slider 137 and the leaf spring 140. By the oscillating movement of the pin 149 (see double arrow 152 in Fig. 62), the distance of the locking projection 139 in the direction of movement 143 can be accurately predetermined with the needle plate slider 137 abutting against the needle plate 14. The distance of the recess 141 is locked.

夾板142通過固定螺栓153與針板滑塊137螺紋連接。The clamping plate 142 is screwed to the needle plate slider 137 by a fixing bolt 153.

1．．．雙針縫紉機1. . . Double needle sewing machine

2．．．上臂2. . . Upper arm

3．．．立柱3. . . Column

4．．．基板4. . . Substrate

5‧‧‧主軸軸線5‧‧‧ spindle axis

5a、5b‧‧‧輔助線5a, 5b‧‧‧ Auxiliary line

7‧‧‧機體7‧‧‧ body

8‧‧‧曲柄傳動機構8‧‧‧Crank drive mechanism

9、10‧‧‧針桿9, 10‧‧‧ needle bar

11、12‧‧‧根針11, 12‧‧‧ needles

13‧‧‧上支承板/座板13‧‧‧Upper support plate/seat plate

14‧‧‧針板14‧‧‧ needle board

15‧‧‧縫紉方向15‧‧‧Sewing direction

16、17‧‧‧移料件開口16, 17‧‧‧Transfer opening

18、19‧‧‧移料件部段18, 19‧‧‧Transfer parts section

20、21‧‧‧針孔20, 21‧‧‧ pinhole

22‧‧‧壓腳22‧‧‧Foot presser

23‧‧‧電磁驅動機構23‧‧‧Electromagnetic drive mechanism

24‧‧‧擺梭組件24‧‧‧ shuttle assembly

25、26‧‧‧擺梭25, 26‧‧‧ Shuttle

27‧‧‧擺梭尖端27‧‧‧The tip of the shuttle

28‧‧‧針儲殼28‧‧‧ needle housing

29‧‧‧面線張緊裝置29‧‧‧Face line tensioning device

30‧‧‧針距調節器傳動機構30‧‧‧pitch adjuster drive mechanism

31‧‧‧底軸31‧‧‧ bottom axis

32、33‧‧‧擺梭驅動機構殼體32, 33‧‧‧ Shuttle drive mechanism housing

34‧‧‧割線器組34‧‧‧Thread cutter group

35‧‧‧切割凸輪體35‧‧‧ cutting cam body

36‧‧‧行程電磁鐵36‧‧‧Travel electromagnet

37‧‧‧刮線刀37‧‧‧Scratch knife

38‧‧‧切換裝置38‧‧‧Switching device

39‧‧‧針桿切換元件39‧‧‧ Needle bar switching elements

40‧‧‧凸輪/接觸凸輪40‧‧‧Cam/contact cam

41‧‧‧桿/觸桿41‧‧‧ rod/rod

42‧‧‧下切換作用面42‧‧‧Switching action surface

43‧‧‧切換端部/觸端43‧‧‧Switching end/contact

45‧‧‧操縱元件45‧‧‧Operating elements

46‧‧‧切換柄46‧‧‧Switch handle

47‧‧‧復位柄47‧‧‧Reset handle

48‧‧‧水準軸48‧‧‧ level axis

49‧‧‧切換桿49‧‧‧Switch lever

50‧‧‧接通桿/起動桿50‧‧‧Connecting lever/starting lever

51‧‧‧復位彈簧51‧‧‧Return spring

52‧‧‧止擋單元52‧‧‧stop unit

53‧‧‧彈簧端部53‧‧‧Spring end

54‧‧‧擋桿54‧‧ ‧bar

55‧‧‧針傳送裝置55‧‧‧needle conveyor

56‧‧‧針桿座56‧‧‧ needle bar holder

57‧‧‧擺動軸線57‧‧‧Swing axis

58‧‧‧推力軸58‧‧‧ thrust shaft

59‧‧‧上引導部段59‧‧‧Upper section

60‧‧‧下引導部段60‧‧‧Lower guidance section

61‧‧‧操縱臂61‧‧‧Manipulator arm

62‧‧‧凸輪擺動軸線62‧‧‧Cam swing axis

63‧‧‧切換凸輪支架63‧‧‧Switching cam bracket

64‧‧‧隨動件/結合件64‧‧‧Following parts/joints

65‧‧‧操縱槽65‧‧‧Control slot

66‧‧‧復位彈簧66‧‧‧Return spring

67‧‧‧隨動件67‧‧‧ Followers

68‧‧‧擋環68‧‧ ‧ retaining ring

69‧‧‧下運行止擋件69‧‧‧Lower running stop

70‧‧‧止擋球70‧‧‧stop ball

71‧‧‧曲柄71‧‧‧ crank

72‧‧‧下導棱72‧‧‧Lower guide

73‧‧‧上導棱73‧‧‧Upper edge

74‧‧‧下靜止止擋件74‧‧‧Seighboring stop

75‧‧‧上靜止止擋件75‧‧‧Upper stop

76‧‧‧距離調節裝置76‧‧‧Distance adjustment device

77‧‧‧連桿系77‧‧‧ linkage

78‧‧‧驅動桿78‧‧‧Driver

79‧‧‧驅動軸79‧‧‧ drive shaft

80‧‧‧第一鉸接機構80‧‧‧First articulation mechanism

81‧‧‧拉桿81‧‧‧ lever

82‧‧‧鉸接機構82‧‧‧Hinging mechanism

82a‧‧‧鉸接軸線82a‧‧‧ articulation axis

83‧‧‧送針桿83‧‧‧Needle bar

84‧‧‧擺動運動84‧‧‧Swinging movement

85a‧‧‧機架部件85a‧‧‧Rack components

86‧‧‧長形孔/銷連接結構86‧‧‧Long hole/pin connection structure

87‧‧‧滑銷87‧‧‧Slide

88‧‧‧長形孔88‧‧‧Long hole

90、91‧‧‧擺梭支座90, 91‧‧‧ shuttle support

92、93‧‧‧空心軸段92, 93‧‧‧ hollow shaft section

94‧‧‧錐齒輪94‧‧‧Bevel gear

95‧‧‧螺桿95‧‧‧ screw

96‧‧‧套筒96‧‧‧ sleeve

97‧‧‧緊固面97‧‧‧ fastening surface

98‧‧‧通孔98‧‧‧through hole

98a‧‧‧底軸軸線98a‧‧‧Bottom axis

99‧‧‧對接面99‧‧‧ docking

100‧‧‧殼壁100‧‧‧ shell wall

101‧‧‧固定裝置101‧‧‧Fixed devices

102‧‧‧緊固螺桿102‧‧‧ fastening screw

103‧‧‧緊固面103‧‧‧ fastening surface

104‧‧‧外殼壁104‧‧‧Shell wall

105‧‧‧凹口105‧‧‧ notch

105a‧‧‧凸台105a‧‧‧ boss

106‧‧‧固定螺栓106‧‧‧ fixing bolts

107‧‧‧盤形凸輪107‧‧‧ disc cam

108‧‧‧軸承108‧‧‧ Bearing

109‧‧‧跟隨體109‧‧‧ Followers

110‧‧‧切割凸輪110‧‧‧ cutting cam

111‧‧‧傳動元件111‧‧‧Transmission components

112‧‧‧舉升頭112‧‧‧ lifting head

113‧‧‧軸段113‧‧‧ shaft segment

114‧‧‧割線裝置114‧‧‧Thread cutting device

115‧‧‧對應刀115‧‧‧Corresponding knife

116‧‧‧切割刃116‧‧‧ cutting edge

119‧‧‧切割壁段119‧‧‧cut wall segments

119a‧‧‧上刮線刀壁119a‧‧‧Scratch knife wall

120‧‧‧運動平面120‧‧‧ sports plane

121‧‧‧間隔壁段121‧‧‧ partition wall

122‧‧‧運動箭頭122‧‧‧ sports arrows

123‧‧‧調節區域123‧‧‧Regulation area

124‧‧‧擺動關節124‧‧‧swing joint

125‧‧‧擺動軸線125‧‧‧Swing axis

126‧‧‧固定螺栓126‧‧‧ fixing bolts

127‧‧‧對應刀支架127‧‧‧corresponding knife holder

129‧‧‧帶鉸接軸線129‧‧‧with hinge axis

130‧‧‧緊固螺栓130‧‧‧ fastening bolts

131‧‧‧線夾131‧‧‧clamp

132‧‧‧保持彈簧端部132‧‧‧ Keep the spring end

134‧‧‧調節元件134‧‧‧Regulatory components

135‧‧‧支承壁135‧‧‧ support wall

136、137‧‧‧針板滑塊136, 137‧‧‧ needle plate slider

138‧‧‧固定結構138‧‧‧Fixed structure

139‧‧‧鎖定凸起139‧‧‧Lock bulge

140‧‧‧片簧140‧‧‧Spring

141‧‧‧鎖定凹槽141‧‧‧Lock groove

142‧‧‧夾板142‧‧‧ splint

143‧‧‧運動方向143‧‧‧ direction of movement

144‧‧‧去固定結構144‧‧‧Go to fixed structure

145‧‧‧致動壓頭145‧‧‧Acoustic indenter

146‧‧‧引導裝置146‧‧‧ Guide device

147‧‧‧導槽147‧‧‧ Guide slot

148‧‧‧彈簧148‧‧ ‧ spring

149‧‧‧銷桿149‧‧‧ pin

150‧‧‧孔隙150‧‧‧ pores

151‧‧‧配合孔151‧‧‧With holes

153‧‧‧固定螺栓153‧‧‧ fixing bolts

第1圖示出一雙針縫紉機的工作側的視圖，其中略去了機台以顯示出安裝在基板中的各零件；Figure 1 is a view showing the working side of a double needle sewing machine, in which the machine table is omitted to show the parts mounted in the substrate;

第2圖示出根據第1圖的雙針縫紉機的透視圖；Figure 2 is a perspective view showing the double-needle sewing machine according to Figure 1;

第3圖由根據第1圖的觀察方向示出放大的縫紉機針桿切換元件，其中兩個針桿皆處於上止點並處於接入的縫紉工作狀態；Figure 3 shows the enlarged needle bar shifting element of the sewing machine according to the viewing direction according to Fig. 1, wherein both of the needle bars are at the top dead center and are in an engaged sewing state;

第4圖由第3圖中的觀察方向IV示出針桿切換元件的視圖；Figure 4 is a view showing the needle bar switching element by the viewing direction IV in Figure 3;

第5圖由第4圖中的觀察方向V示出針桿切換元件的視圖；Figure 5 is a view showing the needle bar switching element by the viewing direction V in Figure 4;

第6圖以類似於第3圖的視圖示出組件，其中左針桿在下止點區域中被接入而右針桿被移出；Figure 6 shows the assembly in a view similar to Figure 3, wherein the left needle bar is accessed in the bottom dead center area and the right needle bar is removed;

第7圖以類似於第4圖的視圖示出在根據第6圖的切換狀態下的針桿切換元件；Figure 7 shows the needle bar switching element in the switching state according to Figure 6 in a view similar to Figure 4;

第8圖以類似於第6圖的視圖示出針桿切換元件，其中在根據實施針傳送擺動運動的位置中示出針桿，與第6圖相比略去了針桿切換元件的幾個部件；Fig. 8 shows the needle bar switching member in a view similar to Fig. 6, in which the needle bar is shown in a position in which the oscillating motion is transmitted according to the implementation of the needle, and the number of the needle bar switching member is omitted as compared with Fig. 6. Parts

第9圖以類似於第7圖的視圖示出在根據第8圖的針傳送位置中的針桿切換組件；Figure 9 shows the needle bar switching assembly in the needle transfer position according to Figure 8 in a view similar to Figure 7;

第10圖示出第9圖中的區域X的局部放大圖；Figure 10 is a partial enlarged view of a region X in Figure 9;

第11圖以類似於第8圖的視圖示出根據實施針傳送擺動運動的針桿切換元件；Figure 11 shows a needle bar shifting element that transmits an oscillating motion according to the implementation of the needle in a view similar to Figure 8;

第12圖以類似於第7圖的視圖示出在根據第11圖的針傳送位置中的針桿切換組件；Figure 12 shows the needle bar switching assembly in the needle transfer position according to Figure 11 in a view similar to Figure 7;

第13圖示出第12圖中的區域XIII的局部放大圖；Figure 13 is a partial enlarged view of a region XIII in Figure 12;

第14圖以類似於第4圖的視圖示出針桿切換元件，其中卻略去幾個部件，在推力軸/驅動軸(Schubwelle)的區域中被截斷並且局部被剖開；Figure 14 shows the needle bar shifting element in a view similar to Figure 4, in which several components are omitted, cut off in the region of the thrust shaft/drive shaft and partially cut away;

第15圖示出第14圖中的局部XV的放大圖；Figure 15 is an enlarged view of a portion XV in Figure 14;

第16圖根據第14圖中的觀察方向XVI示出元件的視圖；Figure 16 shows a view of the element according to the viewing direction XVI in Figure 14;

第17圖示出縫紉機針桿傳送裝置的連桿系/連桿機構在拉桿的傳送位置中的透視圖；Figure 17 is a perspective view showing the link system/link mechanism of the needle bar transporting device of the sewing machine in the transfer position of the drawbar;

第18圖示出由平行於推力軸縱軸線的觀察方向觀察的、根據第17圖的連桿系的側視圖；Figure 18 is a side elevational view of the link system according to Figure 17 as viewed from a viewing direction parallel to the longitudinal axis of the thrust shaft;

第19圖示出根據第18圖中的線XIX－XIX的剖視圖；Figure 19 is a cross-sectional view showing a line XIX-XIX according to Figure 18;

第20圖以類似於第17圖的視圖示出連桿系，其中拉桿在非工作位置中示出；Figure 20 shows the linkage in a view similar to Figure 17, wherein the drawbar is shown in the inoperative position;

第21圖以類似於第18圖的視圖示出在根據第20圖的位置中的連桿系；Figure 21 shows the link system in the position according to Figure 20 in a view similar to Figure 18;

第22圖示出根據在第21圖中的線XXII－XXII的剖視圖；Figure 22 is a cross-sectional view according to line XXII-XXII in Figure 21;

第23圖以類似於第20圖的視圖示出連桿系，其中連桿系的送針桿的固定螺栓被拆鬆；Figure 23 shows the link system in a view similar to Figure 20, in which the fixing bolts of the needle bar of the link system are loosened;

第24圖以類似於第21圖的視圖示出在根據第23圖的位置中的連桿系；Figure 24 shows the link system in the position according to Figure 23 in a view similar to Figure 21;

第25圖示出縫紉機的擺梭驅動組件的透視圖；Figure 25 is a perspective view showing the shuttle drive assembly of the sewing machine;

第26圖示出擺梭/鈎圈裝置(Greifer)驅動元件的軸佈置結構的透視圖；Figure 26 is a perspective view showing the shaft arrangement of the shuttle/hook device (Greifer) drive member;

第27圖示出根據第26圖的軸佈置結構的側視圖；Figure 27 is a side view showing the shaft arrangement according to Figure 26;

第28圖示出軸佈置結構根據第27圖中的線XXVIII－XXVIII的軸向縱剖視圖；Figure 28 is a longitudinal cross-sectional view showing the shaft arrangement according to the line XXVIII-XXVIII in Figure 27;

第29圖示出第28圖中的局部細節XXIX；Figure 29 shows the partial detail XXIX in Figure 28;

第30圖示出根據第27圖中的線XXX－XXX的剖視圖；Figure 30 is a cross-sectional view showing a line XXX-XXX according to Figure 27;

第31圖示出根據第27圖中的線XXXI－XXXI的剖視圖；Figure 31 is a cross-sectional view showing the line XXXI-XXXI in Fig. 27;

第32圖以類似於第31圖的視圖示出位於用於擺動調節空心軸的第一邊界位置中的軸佈置結構，所述擺動調節用於設定針桿行程(Schleifenhub)；Figure 32 shows a shaft arrangement in a first boundary position for the oscillating adjustment of the hollow shaft in a view similar to the one in Fig. 31, the oscillating adjustment for setting the needle stroke (Schleifenhub);

第33圖以類似於第31圖的視圖示出位於用於擺動調節空心軸的對置邊界位置中的軸佈置結構，所述擺動調節用於設定針桿行程；Figure 33 shows, in a view similar to Figure 31, a shaft arrangement located in an opposite boundary position for swinging the adjustment hollow shaft for setting the needle bar stroke;

第34圖示出根據第30圖中的線XXXIV－XXXIV的剖視圖；Figure 34 is a cross-sectional view showing the line XXXIV-XXXIV in Figure 30;

第35圖示出第34圖中的局部細節XXXV；Figure 35 shows the partial detail XXXV in Figure 34;

第36圖示出縫紉機的割線器組件的透視圖；Figure 36 is a perspective view showing the secant assembly of the sewing machine;

第37圖示出割線器組件的在切割力調節螺栓的區域中剖斷的俯視圖；Figure 37 is a plan view showing the secant assembly cut in the region of the cutting force adjusting bolt;

第38圖根據在第37圖中的觀察方向XXXVIII示出割線器元件的側視圖；Figure 38 shows a side view of the secant element according to the viewing direction XXXVIII in Figure 37;

第39圖由類似於第38圖的觀察方向、以刮線刀/線拉刮刀(Fadenziehmesser)在割線後相對於對應刀/反向刀的位置示出割線器元件在刀佈置結構區域中的局部放大圖；Fig. 39 shows a portion of the secant element in the area of the arranging structure by a position similar to that of Fig. 38, with the position of the knives/line squeegees relative to the corresponding knives/reverse knives after secant. Magnified view

第40圖示出第39圖中的局部細節XL；Figure 40 shows the partial detail XL in Figure 39;

第41圖以類似於第39圖的視圖示出在切割力調節螺栓的區域中露出的內部細節；Figure 41 shows the internal details exposed in the region of the cutting force adjustment bolt in a view similar to Figure 39;

第42圖示出在根據第39圖的相對位置中的刀佈置結構的俯視圖；Figure 42 is a plan view showing the blade arrangement in the relative position according to Figure 39;

第43圖以刮線刀在割線前相對於對應刀的相對位置示出的割線器元件的刀佈置結構的透視圖；Figure 43 is a perspective view of the knives arrangement of the secant element shown with the razor blade in front of the secant relative to the corresponding position of the corresponding knives;

第44圖以類似於第39圖的視圖示出在根據第43圖的相對位置中的刀佈置結構；Figure 44 shows the knife arrangement in the relative position according to Figure 43 in a view similar to Figure 39;

第45圖示出第44圖中的細節XLV；Figure 45 shows the detail XLV in Figure 44;

第46圖以類似於第42圖的視圖示出在根據第43圖的相對位置中的刀佈置結構；Figure 46 shows a knife arrangement in a relative position according to Figure 43 in a view similar to Figure 42;

第47圖沿切割力調節螺栓的觀察方向示出刀佈置結構的局部透視圖；Figure 47 shows a partial perspective view of the knife arrangement along the viewing direction of the cutting force adjustment bolt;

第48圖以刮線刀在調節切割力時相對於對應刀的相對位置示出刀佈置結構；Figure 48 shows the knife arrangement structure with respect to the relative position of the wire cutter with respect to the corresponding knife when adjusting the cutting force;

第49圖以類似於第44圖的視圖示出在根據第48圖的相對位置中的刀佈置結構；Figure 49 shows the knife arrangement in the relative position according to Fig. 48 in a view similar to Fig. 44;

第50圖示出在第49圖中的細節L；Figure 50 shows the detail L in Figure 49;

第51圖以類似於第46圖的視圖示出在根據第48圖的相對位置中的刀佈置結構；Figure 51 shows a knife arrangement in a relative position according to Figure 48 in a view similar to Figure 46;

第52圖以類似於第47圖的視圖示出在根據第48圖的相對位置中的佈置結構；Figure 52 shows an arrangement in a relative position according to Fig. 48 in a view similar to Fig. 47;

第53圖以從斜下方觀察下線夾/夾線機構的觀察方向示出在根據第39圖的相對位置中的刀佈置結構的透視圖，其中略去對應刀；Figure 53 is a perspective view showing the arranging structure of the knives in the relative position according to Fig. 39 in a viewing direction of the lower nip/clamping mechanism viewed obliquely from below, wherein the corresponding knives are omitted;

第54圖以類似於第39圖的視圖示出具有通過夾緊力調節螺栓預載入的線夾的刀佈置結構；Figure 54 shows a knife arrangement having a clamp preloaded by a clamping force adjustment bolt in a view similar to Fig. 39;

第55圖以露出夾緊力調節螺栓的剖斷的觀察方向示出根據第54圖中的觀察方向LV的視圖；Figure 55 is a view showing the viewing direction LV according to Fig. 54 in a viewing direction in which the cutting force of the clamping force adjusting bolt is exposed;

第56圖示出在刮線刀的相對於對應刀和相對於下線夾的夾線力調節相對位置中的刀佈置結構；Figure 56 shows the knife arrangement in the relative position of the wire cutter relative to the corresponding knife and the clamping force relative to the lower wire clamp;

第57圖以類似於54的視圖示出在根據第56圖的相對位置中的刀佈置結構；Figure 57 is a view similar to 54 showing the knife arrangement in the relative position according to Figure 56;

第58圖以類似於55的視圖示出刀佈置結構，其中夾緊力調節螺栓與線夾相接合；Figure 58 shows the knife arrangement in a view similar to 55 with the clamping force adjustment bolt engaged with the clamp;

第59圖示出第58圖在下線夾的區域中的局部放大圖；Figure 59 is a partial enlarged view of the Figure 58 in the region of the lower clamp;

第60圖示出基板在針板和兩個與該針板相鄰的針板滑塊的區域中的從斜上方觀察的局部透視圖；Figure 60 is a partial perspective view of the substrate as viewed obliquely from above in the region of the needle plate and the two needle plate sliders adjacent to the needle plate;

第61圖示出根據第60圖的基板部段的俯視圖；Figure 61 is a plan view showing the substrate section according to Fig. 60;

第62圖示出根據第61圖中的線LXII－LXII的剖視圖；Figure 62 is a cross-sectional view showing the line LXII-LXII according to Fig. 61;

第63圖以固定位置示出在第62圖中的細節LXII，其中Figure 63 shows the detail LXII in Figure 62 in a fixed position, wherein

第61圖中在右側示出的針板滑塊不能相對於基板進行相對移動；The needle plate slider shown on the right side in Fig. 61 cannot be relatively moved relative to the substrate;

第64圖以釋放位置示出根據第63圖的細節，其中針板滑塊能夠相對於基板進行相對移動；Figure 64 shows the detail according to Figure 63 in a release position, wherein the needle plate slider is relatively movable relative to the substrate;

第65圖示出根據第61圖中的線LXV－LXV的剖視圖；以及Fig. 65 is a sectional view showing a line LXV-LXV according to Fig. 61;

第66圖示出在第65圖中的細節LXVI。Figure 66 shows the detail LXVI in Figure 65.

24．．．擺梭組件twenty four. . . Shuttle assembly

25、26．．．擺梭25, 26. . . Shuttle

27．．．擺梭尖端27. . . Shuttle tip

28．．．針儲殼28. . . Needle housing

31．．．底軸31. . . Bottom axis

32、33．．．擺梭驅動機構殼體32, 33. . . Shuttle drive housing

90、91．．．擺梭支座90, 91. . . Shuttle support

92、93．．．空心軸段92, 93. . . Hollow shaft segment

95．．．螺桿95. . . Screw

96．．．套筒96. . . Sleeve

102．．．緊固螺桿102. . . Fastening screw

106．．．固定螺栓106. . . Fixing bolts

Claims (7)

一種雙針縫紉機，- 所述雙針縫紉機具有用於接納兩根針的針接納單元，- 所述雙針縫紉機具有兩個間隔開地固定在底軸上的擺梭支座，所述擺梭支座各自支承有一個在形成針跡時與所述兩根針中的一根共同作用的擺梭，- 所述雙針縫紉機具有至少局部包圍所述底軸的空心軸，所述空心軸被驅動成與所述擺梭的梭尖旋轉同步地圍繞一旋轉軸線旋轉，- 其中，設有緊固螺桿以將所述兩個擺梭支座中的至少一個固定在所述底軸上，所述緊固螺桿的具有端側緊固面的緊固部段穿過所述空心軸的通孔，並貼靠在與所述緊固面互補的對接面上，所述對接面形成在底軸的殼壁中，其中對接面設計成不關於所述底軸的旋轉軸線旋轉對稱，- 所述雙針縫紉機具有固定裝置，所述固定裝置用於即使在所述緊固螺桿的緊固面被從所述對接面拆鬆時，也保持所述空心軸相對於所述緊固螺桿的周向相對位置。 A double needle sewing machine having a needle receiving unit for receiving two needles, - the double needle sewing machine has two shuttle bearings fixedly spaced apart from the bottom shaft, the shuttle The holders each support a shuttle that cooperates with one of the two needles when forming the stitching, the double needle sewing machine having a hollow shaft at least partially surrounding the bottom shaft, the hollow shaft being Driven to rotate about an axis of rotation in synchronization with the rotation of the tip of the shuttle, wherein a fastening screw is provided to secure at least one of the two shuttle seats to the bottom shaft, a fastening section of the fastening screw having an end-side fastening surface passes through the through-opening of the hollow shaft and abuts against a mating surface complementary to the fastening surface, the abutting surface being formed on the bottom shaft In the shell wall, wherein the abutting surface is designed not to be rotationally symmetrical about the axis of rotation of the bottom shaft, the double needle sewing machine has a fixing device for being used even on the fastening surface of the fastening screw When the detachment surface is detached, the hollow shaft is also kept relative to The circumferential relative position of the fastening screw. 根據申請專利範圍第1項所述的縫紉機，其特徵在於，所述固定裝置包括：- 包圍所述空心軸的調整套筒，在所述調整套筒中形成與所述緊固螺桿互補的徑向內螺紋，和 - 緊固結構，所述緊固結構將所述調整套筒固定在相對於所述空心軸的相對位置中。 The sewing machine according to claim 1, wherein the fixing device comprises: an adjusting sleeve surrounding the hollow shaft, and a diameter complementary to the fastening screw is formed in the adjusting sleeve Inward thread, and a fastening structure that fixes the adjustment sleeve in a relative position relative to the hollow shaft. 根據申請專利範圍第2項所述的縫紉機，其特徵在於，所述緊固結構包括至少一個第二緊固螺桿，所述第二緊固螺桿穿過在所述調整套筒中的與該第二緊固螺桿互補的第二內螺紋並以端側緊固面貼靠在所述空心軸的外殼壁上。 The sewing machine according to claim 2, wherein the fastening structure comprises at least one second fastening screw, the second fastening screw passing through the adjustment sleeve and the first The second internal thread, which is complementary to the fastening screw, abuts against the outer wall of the hollow shaft with the end-side fastening surface. 根據申請專利範圍第3項所述的縫紉機，其特徵在於，與所述至少一個第二緊固螺桿夾緊所述空心軸的區域相鄰，在所述空心軸中形成一壁厚縮減部。 A sewing machine according to claim 3, characterized in that a wall thickness reducing portion is formed in the hollow shaft adjacent to a region where the at least one second fastening screw clamps the hollow shaft. 根據申請專利範圍第1至4項中任一項所述的縫紉機，其特徵在於，所述對接面設計成平面。 The sewing machine according to any one of claims 1 to 4, wherein the abutting surface is designed to be flat. 根據申請專利範圍第1至4項中任一項所述的縫紉機，其特徵在於，所述對接面設計成“V”槽。 The sewing machine according to any one of claims 1 to 4, wherein the abutting surface is designed as a "V" groove. 根據申請專利範圍第1至4項中任一項所述的縫紉機，其特徵在於，所述對接面沿著一軸向調節區域S形成在所述底軸的殼壁中。The sewing machine according to any one of claims 1 to 4, characterized in that the abutting surface is formed in the shell wall of the bottom shaft along an axial adjustment area S.