TW202348864A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- TW202348864A TW202348864A TW112112578A TW112112578A TW202348864A TW 202348864 A TW202348864 A TW 202348864A TW 112112578 A TW112112578 A TW 112112578A TW 112112578 A TW112112578 A TW 112112578A TW 202348864 A TW202348864 A TW 202348864A
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- needle bar
- looper
- sewing
- needle
- axis
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- 238000009958 sewing Methods 0.000 title claims abstract description 117
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/14—Needle-bar drives
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B55/00—Needle holders; Needle bars
- D05B55/10—Needle bars for multiple-needle sewing machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
- D05B57/10—Shuttles
- D05B57/14—Shuttles with rotary hooks
- D05B57/143—Vertical axis type
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/02—Mechanical drives
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
本申請要求德國專利申請DE 10 2022 203 472.4的優先權，其內容以引用方式併入本文。 發明領域 This application claims priority from German patent application DE 10 2022 203 472.4, the contents of which are incorporated herein by reference. Field of invention
本發明涉及一種縫紉機。The invention relates to a sewing machine.
發明背景Background of the invention
例如，從EP 3 392 388 A1、EP 2 028 311 A2和DE 199 51 127 C2已知縫紉機。DE 102 38 708 A1公開了一種紐扣孔縫紉機。DE 10 2015 101 412 A1和EP 2 476 789 A2公開了一種縫紉機。EP 2 565 313 A1公開了一種雙針縫紉機。Sewing machines are known, for example, from EP 3 392 388 A1, EP 2 028 311 A2 and DE 199 51 127 C2. DE 102 38 708 A1 discloses a buttonhole sewing machine. DE 10 2015 101 412 A1 and EP 2 476 789 A2 disclose a sewing machine. EP 2 565 313 A1 discloses a double-needle sewing machine.
發明概要Summary of the invention
本發明的目的是進一步實現開頭所述類型的縫紉機，使得靈活的縫紉操作特别是縫紉方向交替成爲可能，特别地使得能夠處理數控機床（CNC）控制程序。It is an object of the present invention to further realize a sewing machine of the type mentioned at the outset, making possible flexible sewing operations, in particular alternation of sewing directions, and in particular making it possible to process numerical control machine (CNC) control programs.
根據本發明的縫紉機實現此目的，此縫紉機包括用於保持縫紉針以用於引導面線的針桿，包括針板，針板具有用於縫紉針在線跡形成期間通過的開口，包括在線跡形成期間用於將縫料固定在針板的區域中的壓腳，包括使針桿圍繞沿此針桿延伸的針桿軸線旋轉的針桿旋轉驅動器。This object is achieved by a sewing machine according to the invention, which sewing machine includes a needle bar for holding a sewing needle for guiding the upper thread, including a needle plate having an opening for the passage of the sewing needle during stitch formation, including during stitch formation. The presser foot, which is used to fix the sewing material in the area of the needle plate, includes a needle bar rotation drive that rotates the needle bar about a needle bar axis extending along this needle bar.
根據本發明，已經認識到可以提供一種具有針桿旋轉驅動器的縫紉機，用於預設縫紉方向，而不必摒棄在線跡形成期間用於固定縫料的壓腳。結果是一種可靈活地預設縫紉方向的縫紉機，其中縫料在縫紉期間被壓腳牢固地固定。縫紉機具有縫紉驅動器，用於預設針桿沿針桿延伸的線跡形成運動。可以通過針桿相對於針板的旋轉定向來分别選擇縫製方向。這允許靈活的縫式幾何形狀，特别是可用於處理縫紉程序，尤其是通過CNC控制系統加以控制。特别是，可以自動地縫製沿着軌跡延伸的縫式（seam）。According to the present invention, it has been recognized that it is possible to provide a sewing machine with a needle bar rotary drive for presetting the sewing direction without having to dispense with the presser foot for fixing the sewing material during stitch formation. The result is a sewing machine with flexibly preset sewing directions, in which the material is securely held in place by the presser foot during sewing. The sewing machine has a sewing drive for presetting the stitch-forming movement of the needle bar along which it extends. The sewing direction can be selected individually via the rotational orientation of the needle bar relative to the needle plate. This allows for flexible seam geometries that can be used in particular to handle sewing procedures, especially those controlled via CNC control systems. In particular, seams extending along the trajectory can be automatically sewn.
壓腳可以被構造成送料腳。The presser foot can be configured as a feed foot.
壓腳通過壓腳的壓腳端在固定期間與縫料接觸，可以體現在壓腳和縫料之間的接觸發生在針板開口附近，以便在線跡形成期間縫針通過開口。The presser foot comes into contact with the sewing material during fixation through the presser foot end of the presser foot, which can be reflected in the fact that the contact between the presser foot and the sewing material occurs near the throat plate opening so that the needle passes through the opening during stitch formation.
壓腳不可旋轉地安裝在針桿上，使得當針桿圍繞針桿軸線旋轉時，壓腳隨針桿一起旋轉，確保壓腳的位置自動地適應通過針桿旋轉而選擇的縫製方向。The presser foot is non-rotatably mounted on the needle bar, so that when the needle bar rotates around the needle bar axis, the presser foot rotates with the needle bar, ensuring that the position of the presser foot automatically adapts to the sewing direction selected by the needle bar rotation.
用於針桿和/或壓腳的行程調整的行程驅動器能夠使得縫製操作適應不同厚度的縫料。行程調整的行程高度可以在0.5毫米和50毫米之間，例如在5毫米到10毫米之間。Stroke drives for stroke adjustment of the needle bar and/or presser foot enable the sewing operation to be adapted to sewing materials of different thicknesses. The stroke height of the stroke adjustment can be between 0.5 mm and 50 mm, for example between 5 mm and 10 mm.
被設計成機動化的（motorized）致動器的行程驅動器允許精確的行程調整。行程驅動器可以被構造成步進馬達。可以通過控制程序控制行程驅動器。Stroke drives designed as motorized actuators allow precise stroke adjustment. The stroke drive can be designed as a stepper motor. The stroke drive can be controlled via a control program.
旋轉盤的中心盤軸線與針桿軸線重合，其中行程驅動器被固定到縫紉機的機架，並通過與針桿旋轉組件的連接進行協作以用於行程移位，旋轉盤能夠使得待安裝的行程驅動器的驅動部件固定安裝到機架，使得當調整針桿旋轉驅動器時，針桿旋轉組件相對於這些固定到機架的驅動部件而旋轉。行程驅動器可以通過旋轉盤中的圓周槽與針桿旋轉組件連接，以用於行程移位。The central disc axis of the rotating disc coincides with the axis of the needle bar, in which the stroke drive is fixed to the frame of the sewing machine and cooperates with the needle bar rotating assembly for stroke displacement, the rotating disc enables the stroke drive to be installed The drive components are fixedly mounted to the frame such that when the needle bar rotation drive is adjusted, the needle bar rotation assembly rotates relative to these drive components that are fixed to the frame. The stroke drive can be connected to the needle bar rotating assembly through a circumferential groove in the rotating disk for stroke displacement.
本發明的另一個目的是進一步設計一種縫紉機，使得針對雙線縫製也可以靈活地預設縫紉方向。Another object of the present invention is to further design a sewing machine so that the sewing direction can be flexibly preset for double-thread sewing.
根據本發明的一種縫紉機實現此目的。此縫紉機包括用於保持縫紉針以引導面線的針桿，包括針板，針板具有在線跡形成期間供縫紉針通過的開口，包括使針桿圍繞沿針桿延伸的針桿軸線旋轉的針桿旋轉驅動器，包括具有彎針的彎針組件，彎針用於與縫紉針協作形成線跡並用於引導底線，具有彎針縫紉驅動器，用於使彎針圍繞彎針軸線旋轉，具有彎針組件旋轉驅動器，用於使彎針組件圍繞與彎針軸線不重合的彎針組件軸線旋轉。A sewing machine according to the invention achieves this object. This sewing machine includes a needle bar for holding a sewing needle to guide upper thread, a needle plate having an opening for the passage of the sewing needle during stitch formation, and a needle that causes the needle bar to rotate about a needle bar axis extending along the needle bar. Rod rotation drive, including a looper assembly having a looper for cooperating with a sewing needle to form stitches and for guiding the bobbin thread, having a looper sewing drive for rotating the looper about a looper axis, having a looper assembly A rotary drive used to rotate the looper assembly around an axis of the looper assembly that is not coincident with the axis of the looper.
縫紉驅動器反過來可用於針桿的線跡形成運動，其中用於彎針的線跡形成運動的彎針縫紉驅動器和用於針桿的線跡形成運動的縫紉驅動器可以從同一個驅動源轉向。The sewing drive can in turn be used for the seam-forming movement of the needle bar, wherein the looper sewing drive for the seam-forming movement of the looper and the sewing drive for the seam-forming movement of the needle bar can be diverted from the same drive source.
針桿旋轉驅動器和彎針組件旋轉驅動器確保了用於雙線線跡形成的針桿和彎針組件能正確地相互作用以用於形成線跡，不受當前旋轉位置的影響，從而與當前縫製方向無關。The needle bar rotary drive and the looper assembly rotary drive ensure that the needle bar and looper assembly used for double-thread stitch formation interact correctly for stitch formation, independent of the current rotational position and thus the current sewing The direction doesn't matter.
此縫紉機尤其可以縫製雙線鎖式線跡。This sewing machine is particularly capable of sewing double-thread lockstitches.
針桿旋轉驅動器可以與彎針組件旋轉驅動器同步工作。針桿旋轉驅動器可以與縫紉驅動器同步工作。The needle bar rotary drive can work synchronously with the looper assembly rotary drive. The needle bar rotation drive can work synchronously with the sewing drive.
彎針軸線與彎針組件軸線的相對定向，能夠使得彎針可以圍繞與針桿軸線平行延伸的彎針軸線旋轉。彎針組件軸線和彎針軸線之間的距離使得可能確保彎針相對於針桿的正確位置，以用於形成正確的線跡，而不依賴於旋轉驅動器分别設定的縫製方向。The relative orientation of the looper axis and the looper assembly axis enables the looper to rotate about a looper axis extending parallel to the needle bar axis. The distance between the looper assembly axis and the looper axis makes it possible to ensure the correct position of the looper relative to the needle bar for forming the correct stitch, independent of the sewing direction respectively set by the rotary drive.
角齒輪用於使得彎針縫紉驅動器從縫紉驅動馬達轉向；在角齒輪中包括差動齒輪單元，差動齒輪單元允許根據彎針組件圍繞彎針組件軸線的旋轉位置來調整彎針尖端圍繞彎針軸線的相對旋轉位置。這確保了彎針不僅關於作爲整體的彎針與針尖的穿刺點的布置被正確地定向，而且確保彎針的針尖在正確的階段上與適當位置的縫紉針同步以用於線跡形成相互作用，而與通過旋轉驅動器設置的當前位置無關。The angle gear is used to divert the looper sewing drive from the sewing drive motor; included in the angle gear is a differential gear unit that allows the looper tip to be adjusted around the looper according to the rotational position of the looper assembly about the axis of the looper assembly The relative rotational position of the axis. This ensures that the looper is not only correctly oriented with respect to the arrangement of the looper and tip penetration points of the looper as a whole, but also that the looper tip is synchronized at the correct stage with the appropriately positioned sewing needle for stitch-forming interaction , regardless of the current position set by rotating the drive.
用於針桿旋轉驅動器和彎針組件旋轉驅動器的公共旋轉驅動馬達從同一個旋轉驅動馬達轉向，包括公共旋轉驅動馬達的實施方式可以降低成本，並且相關的驅動器可以始終在正確的階段移動。然後，可以通過與公共驅動馬達的機械耦合來確保針桿旋轉驅動器和彎針組件旋轉驅動器之間的同步性。The common rotary drive motor for the needle bar rotary drive and the looper assembly rotary drive is diverted from the same rotary drive motor. An embodiment including a common rotary drive motor can reduce costs and the associated drives can always move in the correct phase. Synchronicity between the needle bar rotation drive and the looper assembly rotation drive can then be ensured by mechanical coupling to a common drive motor.
用於將針桿旋轉驅動器和彎針組件旋轉驅動器從旋轉驅動馬達中轉向的角齒輪，包括至少一個齒帶轉向單元，能夠將驅動功率靈活地傳輸給針桿旋轉驅動器和彎針組件旋轉驅動器的輸出側部件。An angle gear for steering the needle bar rotary drive and the looper assembly rotary drive from the rotary drive motor, including at least one toothed belt steering unit capable of flexibly transmitting drive power to the needle bar rotary drive and the looper assembly rotary drive. Output side components.
上述解釋的縫紉機的設計特徵可以以任何方式組合使用。例如，具有針桿旋轉驅動器和壓腳的縫紉機也可以具有彎針組件旋轉驅動器。The design features of the sewing machine explained above can be combined in any way. For example, a sewing machine having a needle bar rotary drive and a presser foot may also have a looper assembly rotary drive.
具體實施方式Detailed implementation
縫紉機1（參見圖1）具有C形的基本結構，包括臂部2、底板3和連接臂部2和底板3的支架4。The sewing machine 1 (see Figure 1) has a C-shaped basic structure, including an arm 2, a base plate 3 and a bracket 4 connecting the arm 2 and the base plate 3.
縫紉機1具有縫紉針5形式的線跡形成（stitch-forming）工具和彎針（looper）7。針桿6保持縫紉針5。針桿6通過多個滑塊6a安裝在軸承套筒6b中。The sewing machine 1 has a stitch-forming tool in the form of a sewing needle 5 and a looper 7 . The needle bar 6 holds the sewing needle 5 . The needle bar 6 is installed in the bearing sleeve 6b through a plurality of slide blocks 6a.
縫紉針5用於引導面線（upper thread）。縫紉機1的針板（stitch plate）5a具有開口，用於縫紉針5在線跡形成期間穿過。The sewing needle 5 is used to guide the upper thread. The stitch plate 5a of the sewing machine 1 has an opening for the sewing needle 5 to pass during stitch formation.
壓腳8也被稱爲縫紉腳，用於在線跡形成期間將縫料固定在針板區域中。針桿6和壓腳8被安裝在縫紉機1的機頭2a上，機頭2a形成臂部2的端部。The presser foot 8 is also called a sewing foot and serves to secure the sewing material in the needle plate area during stitch formation. The needle bar 6 and the presser foot 8 are mounted on the machine head 2 a of the sewing machine 1 , and the machine head 2 a forms the end of the arm 2 .
壓腳8還可以與縫紉驅動器同步地進行跳動運動。可以通過行程驅動器10預先確定此跳動運動。這種跳動運動的跳動行程可以處於0.5毫米和10毫米之間的範圍內。The presser foot 8 can also perform a beating movement synchronously with the sewing drive. This jumping movement can be predetermined by the stroke drive 10 . The jump stroke of this jump movement can lie in the range between 0.5 mm and 10 mm.
彎針7被安裝在底板3中針板下方。在線跡形成期間，彎針7圍繞彎針軸線9旋轉，彎針軸線9垂直延伸（例如，參見圖7）。The looper 7 is installed below the needle plate in the base plate 3 . During stitch formation, the looper 7 rotates about a looper axis 9 which extends vertically (see, for example, Figure 7).
彎針7用於引導在線跡形成期間與面線協作的底線，以及具有線軸（bobbin）形式的底線儲備（lower thread stock）。The looper 7 is used to guide the lower thread that cooperates with the upper thread during stitch formation, and has a lower thread stock in the form of a bobbin.
爲了便於表示位置關係，下面使用直角坐標系xyz。x方向沿着圖2的縫製方向向左延伸。y方向在圖1中向左水平延伸，並且垂直於圖2的繪圖平面。z方向在圖1和圖2中垂直向上延伸。In order to facilitate the expression of positional relationships, the rectangular coordinate system xyz is used below. The x direction extends to the left along the sewing direction in Figure 2. The y-direction extends horizontally to the left in Figure 1 and is perpendicular to the drawing plane of Figure 2. The z-direction extends vertically upward in Figures 1 and 2.
縫紉機1具有行程驅動器10，行程驅動器10用於壓腳8沿z方向的行程調整。圖2表示壓腳8處於降低到針板高度的行程位置。圖3表示壓腳8與圖2中的行程位置相比處於升高的行程位置。The sewing machine 1 has a stroke driver 10, which is used to adjust the stroke of the presser foot 8 in the z direction. Figure 2 shows the presser foot 8 in a stroke position lowered to the height of the needle plate. FIG. 3 shows the presser foot 8 in a raised stroke position compared to the stroke position in FIG. 2 .
行程驅動器10具有致動器（actuator），致動器可以設計成步進馬達。圖中未示出的有齒輪緣（toothed rim）被放置在行程驅動器10的馬達軸上，帶齒輪緣與壓腳8的壓腳桿11的齒條部分相互作用。與縫料相互作用的按壓端12也被設計成供縫紉針5穿過的套筒。The stroke drive 10 has an actuator, which can be designed as a stepper motor. A toothed rim, not shown in the figure, is placed on the motor shaft of the stroke driver 10 and interacts with the rack portion of the presser foot lever 11 of the presser foot 8 . The pressing end 12 that interacts with the sewing material is also designed as a sleeve for the sewing needle 5 to pass through.
作爲步進馬達行程驅動器10的單獨實施方式的替代實施方式，壓腳的行程調整也可以從縫紉機1的臂軸上轉移。As an alternative to a separate embodiment of the stepper motor stroke drive 10 , the stroke adjustment of the presser foot can also be transferred from the arm axis of the sewing machine 1 .
安裝在底板側的旋轉驅動馬達13是公共驅動源，一方面用於針桿旋轉驅動器14，使得針桿6和壓腳8圍繞垂直的針桿軸線15旋轉，另一方面用於彎針組件旋轉驅動器16，使得包括彎針7的彎針組件17圍繞彎針組件軸線18旋轉（例如，參見圖7）。彎針組件軸線18與彎針軸線9平行，並與之相距一定距離。兩個軸線9、18都平行於Z軸延伸，即垂直延伸。彎針組件軸線18與針桿軸線15重合。The rotary drive motor 13 installed on the base plate side is a common drive source, on the one hand for the needle bar rotary driver 14, so that the needle bar 6 and the presser foot 8 rotate around the vertical needle bar axis 15, and on the other hand for the looper assembly to rotate The drive 16 causes the looper assembly 17, including the looper 7, to rotate about a looper assembly axis 18 (see, for example, Figure 7). The looper assembly axis 18 is parallel to and at a certain distance from the looper axis 9 . Both axes 9, 18 extend parallel to the Z-axis, ie vertically. The looper assembly axis 18 coincides with the needle bar axis 15 .
爲了使針桿6和與其非旋轉連接的壓腳8圍繞針桿軸線15旋轉，旋轉驅動馬達13通過齒帶19與旋轉驅動軸20進行操作性連接，旋轉驅動軸20沿y軸延伸（參見圖8）。另一齒帶21首先沿支架4被引導，然後沿臂部2被引導，通過另一齒帶21，旋轉驅動軸20與針桿側上的具有垂直旋轉軸線的有齒輪緣22進行操作性連接。針桿6和壓腳桿11以不可旋轉的方式與針桿側上的有齒輪緣22連接。In order to rotate the needle bar 6 and the presser foot 8 non-rotatably connected thereto about the needle bar axis 15, the rotary drive motor 13 is operatively connected through the toothed belt 19 to the rotary drive shaft 20, which extends along the y-axis (see Figure 8). Another toothed belt 21 is guided first along the carriage 4 and then along the arm 2 , by means of which the rotary drive shaft 20 is operatively connected to a geared rim 22 with a vertical axis of rotation on the needle bar side. . The needle bar 6 and the presser foot lever 11 are connected in a rotatable manner to a geared edge 22 on the needle bar side.
線桿組件23布置在針桿6上方的機頭2a中（參見圖1）。此線桿組件23的設計方式是確保在線跡形成期間面線與底線的打結以及正確的線張力，與針桿6圍繞針桿軸線15的旋轉位置無關。線張緊板25被安裝到縫紉機1的臂部2，鄰近於線桿組件23的線桿24。用於預設面線的張力的張緊單元26被安裝在線張緊板25上（圖中未示出）。The wire rod assembly 23 is arranged in the handpiece 2a above the needle bar 6 (see Figure 1). This thread bar assembly 23 is designed in such a way that it ensures knotting of the upper and lower threads and correct thread tension during stitch formation, independent of the rotational position of the needle bar 6 about the needle bar axis 15 . The thread tensioning plate 25 is mounted to the arm 2 of the sewing machine 1 adjacent to the thread rod 24 of the thread rod assembly 23 . A tensioning unit 26 for presetting the tension of the upper thread is installed on the thread tensioning plate 25 (not shown in the figure).
除了針桿6具有以不可旋轉的方式圍繞針桿線軸15與其連接的壓腳8之外，針桿旋轉組件27還包括一個旋轉盤28，旋轉盤28的中心盤軸線與針桿軸線15重合（例如，參見圖2）。在圖2和圖3中以側視圖表示此旋轉盤28。旋轉盤28以不可旋轉的方式連接到有齒輪緣22和針桿6。旋轉盤28牢固地連接到壓腳8。In addition to the needle bar 6 having a presser foot 8 connected to it in a non-rotatable manner around the needle bar bobbin 15, the needle bar rotating assembly 27 also includes a rotating disk 28, the central disk axis of the rotating disk 28 coincides with the needle bar axis 15 ( For example, see Figure 2). This rotating disk 28 is shown in side view in FIGS. 2 and 3 . The rotating disk 28 is connected in a non-rotatable manner to the geared rim 22 and the needle bar 6 . The rotating disk 28 is firmly connected to the presser foot 8 .
行程驅動器10被固定到縫紉機1的機架，即固定到機頭側機架元件上。旋轉盤28具有圓周槽29，如圖2所示，壓腳桿11的驅動器30接合在圓周槽29中用於壓腳8的行程移位。或者，可以通過肩部實現行程驅動器10與旋轉盤28的連接。The stroke drive 10 is fixed to the frame of the sewing machine 1 , ie to the head-side frame element. The rotating disk 28 has a circumferential groove 29 in which, as shown in FIG. 2 , the driver 30 of the presser foot lever 11 is engaged for the stroke displacement of the presser foot 8 . Alternatively, the connection of the travel drive 10 to the rotary disk 28 can be achieved via a shoulder.
爲了使彎針組件17圍繞彎針組件軸線18旋轉，旋轉驅動軸20通過又一個齒帶31與空心軸部分32的有齒輪緣進行操作性連接。此空心軸部分32通過有齒輪對34、35、齒輪軸36、進一步的有齒輪對37、38與彎針組件17的裝配殼體40的表面鋸齒39進行操作性連接。In order to rotate the looper assembly 17 about the looper assembly axis 18, the rotary drive shaft 20 is operatively connected to the geared rim of the hollow shaft portion 32 via yet another toothed belt 31. This hollow shaft portion 32 is operatively connected to the surface serrations 39 of the assembly housing 40 of the looper assembly 17 through a pair of gears 34, 35, a gear shaft 36, and further a pair of gears 37, 38.
彎針7在裝配殼體40中可圍繞彎針軸線9旋轉。反過來裝配殼體40可圍繞彎針組件軸線18旋轉。The looper 7 is rotatable about the looper axis 9 in the mounting housing 40 . The assembly housing 40 is in turn rotatable about the looper assembly axis 18 .
通過齒輪連接（32至39），空心軸部分32圍繞平行於y軸的軸線的旋轉被重新定向爲裝配殼體40圍繞平行於z軸的彎針組件軸線18的旋轉。Through the gear connection (32 to 39), the rotation of the hollow shaft portion 32 about an axis parallel to the y-axis is redirected into a rotation of the assembly housing 40 about the looper assembly axis 18 parallel to the z-axis.
縫紉驅動馬達41也被安裝到底板側。爲了形成線跡，平行於z軸的針桿6的上下運動以及彎針7圍繞彎針軸線9的旋轉，各自被縫紉驅動馬達41轉向。縫紉驅動馬達41通過齒帶42與彎針驅動軸33的芯軸43相互作用。在齒帶42所齧合的有齒輪緣42a和芯軸43之間，布置有卡扣式聯軸器42b，卡扣式聯軸器42b在過載情況下將芯軸43與縫紉驅動馬達41分離。The sewing drive motor 41 is also installed on the base plate side. In order to form stitches, the up and down movement of the needle bar 6 parallel to the z-axis and the rotation of the looper 7 about the looper axis 9 are each diverted by the sewing drive motor 41 . The sewing drive motor 41 interacts with the spindle 43 of the looper drive shaft 33 via a toothed belt 42 . Between the geared edge 42a and the spindle 43 that the toothed belt 42 meshes with, a snap-on coupling 42b is arranged. The snap-on coupling 42b separates the spindle 43 from the sewing drive motor 41 in the event of overload. .
通過差動齒輪單元44、傳動軸45和傘齒輪（bevel gear）46（在圖7中部分可見）以及垂直延伸的進一步傳動軸47，芯軸43與彎針軸（在圖7中不可見，也是垂直延伸並與彎針軸線9對準）進行操作性連接。By means of a differential gear unit 44 , a drive shaft 45 and a bevel gear 46 (partially visible in FIG. 7 ) and a vertically extending further drive shaft 47 , the spindle 43 is connected to the looper shaft (not visible in FIG. 7 ). also extends vertically and is aligned with the looper axis 9) for operative connection.
差動齒輪單元44用以根據彎針組件17圍繞彎針組件軸線18的各自旋轉位置，調整彎針尖端圍繞彎針軸線9的相對旋轉位置。由此差動齒輪單元44確保傳動軸45相對於芯軸43的旋轉可以能夠實現彎針尖端的相對旋轉位置的相應調整。The differential gear unit 44 is used to adjust the relative rotational position of the looper tip around the looper axis 9 according to the respective rotational positions of the looper assembly 17 around the looper assembly axis 18 . The differential gear unit 44 thereby ensures that the rotation of the drive shaft 45 relative to the spindle 43 can achieve a corresponding adjustment of the relative rotational position of the looper tip.
傳動軸45藉助差動齒輪單元44相對於芯軸43的旋轉是以主動控制（positively controlled）的方式進行。因此，根據彎針組件17圍繞彎針組件軸線18的旋轉位置，調整彎針尖端圍繞彎針軸線9的相對旋轉位置。The rotation of the transmission shaft 45 relative to the core shaft 43 is performed in a positively controlled manner by means of the differential gear unit 44 . Therefore, the relative rotational position of the looper tip about the looper axis 9 is adjusted depending on the rotational position of the looper assembly 17 about the looper assembly axis 18 .
針桿的縫紉驅動由驅動馬達41通過臂部軸48和曲柄角齒輪（crank angle gear）提供給針桿，曲柄角齒輪被罩設在機頭2a中。The sewing drive of the needle bar is provided to the needle bar by a drive motor 41 through an arm shaft 48 and a crank angle gear, which is housed in the machine head 2a.
圖4表示了具有壓腳8的針桿6，和處於起點旋轉位置“0°”的彎針組件17，其中縫紉是沿着x軸進行。在此過程期間，彎針7的一個彎針尖端對準針桿軸線15。Figure 4 shows the needle bar 6 with the presser foot 8, and the looper assembly 17 in the starting rotational position "0°", where sewing is performed along the x-axis. During this process, one looper tip of the looper 7 is aligned with the needle shaft axis 15 .
圖5表示與圖4所示的旋轉位置相比，逆時針旋轉90°的旋轉位置。這是由旋轉驅動馬達13作用於針桿旋轉驅動器14且作用於彎針組件旋轉驅動器16上而引起的。具有針桿6和壓腳8的針桿旋轉組件27、以及彎針組件17，其中一個圍繞針桿軸線15，另一個圍繞彎針組件軸線18，同步地逆時針旋轉90°。由於差動齒輪單元44的作用，在這個旋轉位置“90°”，也確保了彎針尖端面對針桿軸線15，以形成正確的線跡。FIG. 5 shows a rotational position rotated 90° counterclockwise compared to the rotational position shown in FIG. 4 . This is caused by the rotational drive motor 13 acting on the needle bar rotational driver 14 and on the looper assembly rotational driver 16 . The needle bar rotating assembly 27 with the needle bar 6 and the presser foot 8 and the looper assembly 17, one of which revolves around the needle bar axis 15 and the other around the looper assembly axis 18, rotate 90° counterclockwise synchronously. Due to the effect of the differential gear unit 44, in this rotational position "90°", it is also ensured that the looper tip faces the needle bar axis 15 to form a correct stitch.
使用縫紉機1可以縫製雙線鎖式線跡。Double-thread bartacks can be sewn using sewing machine 1.
縫紉機1的部件與中央控制裝置進行信號通信。這中央控制裝置可以是CNC控制系統。The components of the sewing machine 1 are in signal communication with the central control device. This central control device may be a CNC control system.
1:縫紉機 2:臂部 2a:機頭 3:底板 4:支架 5:縫紉針 6:針桿 6a:滑塊 6b:軸承套筒 7:彎針 8:壓腳 9:彎針軸線 10:行程驅動器 11:壓腳桿 12:按壓端 13:旋轉驅動馬達 14:針桿旋轉驅動器 15:針桿軸線 16:彎針組件旋轉驅動器 17:彎針組件 18:彎針組件軸線 19,21,31,42:齒帶 20:旋轉驅動軸 22,42a:齒輪緣 23:線桿組件 24:線桿 25:線張緊板 26:張緊單元 27:針桿旋轉組件 28:旋轉盤 29:圓周槽 30:驅動器 32:空心軸部分 33:彎針驅動軸 34,35,37,38:齒輪對 36:齒輪軸 39:表面鋸齒 40:裝配殼體 41:縫紉驅動馬達 42b:卡扣式聯軸器 43:芯軸 44:差動齒輪單元 45,47:傳動軸 46:傘齒輪 48:臂部軸 II:觀察方向 x,y,z:直角坐標系 1:Sewing machine 2:Arm 2a: Machine head 3: Bottom plate 4: Bracket 5: Sewing needle 6: Needle bar 6a: Slider 6b: Bearing sleeve 7: Curved needle 8: Presser foot 9:Looper axis 10: Stroke driver 11: Presser foot lever 12: Press end 13: Rotary drive motor 14: Needle bar rotation driver 15: Needle bar axis 16:Looper assembly rotation driver 17:Looping needle assembly 18:Looper assembly axis 19,21,31,42:Toothed belt 20:Rotating drive shaft 22,42a: Gear rim 23: Line pole assembly 24:Line pole 25: Wire tensioning plate 26: Tensioning unit 27: Needle bar rotating assembly 28: Rotating disk 29: Circumferential groove 30: drive 32: Hollow shaft part 33:Looper drive shaft 34,35,37,38: Gear pair 36:Gear shaft 39:Surface jagged 40:Assemble the shell 41:Sewing drive motor 42b: snap-on coupling 43: mandrel 44: Differential gear unit 45,47: drive shaft 46:Bevel gear 48:Arm shaft II: Observation direction x,y,z: Cartesian coordinate system
下面參考附圖更詳細地解釋本發明的實施方式。 圖1表示縫紉機的操作者側的透視圖。此縫紉機具有針桿旋轉驅動器和彎針組件旋轉驅動器。針桿旋轉驅動器用於圍繞針桿軸線旋轉針桿和壓腳，彎針組件旋轉驅動器用於圍繞彎針組件軸線旋轉彎針組件，彎針組件軸線與彎針軸線不重合； 圖2是根據圖1中的觀察方向II表示針桿旋轉驅動器的細節的放大圖和剖面圖，其中壓腳被降低到縫紉機的針板的高度； 圖3與圖2類似，表示壓腳升高到較高水平的縫紉機； 圖4從與圖1相似的觀察方向，表示針桿旋轉驅動器和彎針組件旋轉驅動器在線跡形成區域的放大細節，包括針桿和彎針位於如圖1所示的起點“0°”旋轉位置； 圖5與圖4類似，表示針桿旋轉驅動器和彎針組件旋轉驅動器處於與圖4相比逆時針旋轉“90°”的旋轉位置； 圖6表示彎針組件旋轉驅動器的齒輪組件，包括用於使得彎針圍繞彎針軸線旋轉的彎針縫紉驅動器； 圖7在類似於圖6的透視圖中表示殼體組件被移除的圖6的組件； 圖8表示縫紉機主要部件的操作者側的視圖，還示出了用於驅動針桿旋轉驅動器的有齒皮帶導向裝置。 Embodiments of the invention are explained in more detail below with reference to the drawings. Figure 1 shows a perspective view of the operator's side of the sewing machine. This sewing machine has a needle bar rotary drive and a looper assembly rotary drive. The needle bar rotary driver is used to rotate the needle bar and the presser foot around the needle bar axis, and the looper assembly rotary drive is used to rotate the looper assembly around the looper assembly axis. The looper assembly axis does not coincide with the looper axis; Figure 2 is an enlarged view and a cross-sectional view showing details of the needle bar rotation drive according to the viewing direction II in Figure 1, in which the presser foot is lowered to the height of the needle plate of the sewing machine; Figure 3 is similar to Figure 2 and shows the sewing machine with the presser foot raised to a higher level; Figure 4 shows an enlarged detail of the needle bar rotary drive and the looper assembly rotary drive in the track forming area, from a similar viewing direction to Figure 1, including the needle bar and looper at the starting "0°" rotational position as shown in Figure 1 ; Figure 5 is similar to Figure 4, showing that the needle bar rotary driver and the looper assembly rotary driver are in a rotational position of "90°" counterclockwise compared to Figure 4; Figure 6 shows a gear assembly of a looper assembly rotary drive, including a looper sewing drive for causing the looper to rotate about the looper axis; Figure 7 shows the assembly of Figure 6 with the housing assembly removed, in a perspective view similar to Figure 6; Figure 8 shows an operator's side view of the main components of the sewing machine, also showing the toothed belt guide for driving the needle bar rotation drive.
1:縫紉機 1:Sewing machine
2:臂部 2:Arm
2a:機頭 2a: Machine head
3:底板 3: Bottom plate
4:支架 4: Bracket
5:縫紉針 5: Sewing needle
6:針桿 6: Needle bar
7:彎針 7: Curved needle
8:壓腳 8: Presser foot
10:行程驅動器 10: Stroke driver
13:旋轉驅動馬達 13: Rotary drive motor
16:彎針組件旋轉驅動器 16:Looper assembly rotation driver
31:齒帶 31:Toothed belt
23:線桿組件 23: Line pole assembly
24:線桿 24:Line pole
25:線張緊板 25: Wire tensioning plate
26:張緊單元 26: Tensioning unit
27:針桿旋轉組件 27: Needle bar rotating assembly
43:芯軸 43: mandrel
II:觀察方向 II: Observation direction
x,y,z:直角坐標系 x,y,z: Cartesian coordinate system
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022203472.4A DE102022203472A1 (en) | 2022-04-07 | 2022-04-07 | sewing machine |
| DE102022203472.4 | 2022-04-07 |
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| Publication Number | Publication Date |
|---|---|
| TW202348864A true TW202348864A (en) | 2023-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW112112578A TW202348864A (en) | 2022-04-07 | 2023-03-31 | Sewing machine |
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| EP (1) | EP4257739A1 (en) |
| JP (1) | JP2023155186A (en) |
| KR (1) | KR20230144465A (en) |
| CN (1) | CN116892088A (en) |
| DE (1) | DE102022203472A1 (en) |
| TW (1) | TW202348864A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19951127C2 (en) | 1999-10-23 | 2002-06-20 | Duerkopp Adler Ag | Buttonhole sewing machine |
| DE10238708A1 (en) | 2002-08-23 | 2004-03-04 | Dürkopp Adler AG | Buttonhole sewing machine |
| DE102007039596A1 (en) | 2007-08-22 | 2009-02-26 | Dürkopp Adler AG | Sewing machine and method for sewing a seam beginning with such a sewing machine |
| JP5759180B2 (en) | 2011-01-04 | 2015-08-05 | Juki株式会社 | sewing machine |
| JP5859248B2 (en) | 2011-08-31 | 2016-02-10 | Juki株式会社 | Double needle sewing machine |
| JP6374661B2 (en) | 2014-02-03 | 2018-08-15 | Juki株式会社 | sewing machine |
| DE102015220332A1 (en) * | 2015-10-19 | 2017-04-20 | Pfaff Industriesysteme Und Maschinen Gmbh | sewing |
| DE102017206499B3 (en) | 2017-04-18 | 2018-05-03 | Dürkopp Adler AG | sewing machine |
| TWI722814B (en) * | 2020-03-04 | 2021-03-21 | 啟翔股份有限公司 | Sewing machine with adjustable needle pitch |
-
2022
- 2022-04-07 DE DE102022203472.4A patent/DE102022203472A1/en active Pending
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2023
- 2023-03-13 KR KR1020230032596A patent/KR20230144465A/en unknown
- 2023-03-30 JP JP2023055040A patent/JP2023155186A/en active Pending
- 2023-03-30 CN CN202310332258.0A patent/CN116892088A/en active Pending
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| EP4257739A1 (en) | 2023-10-11 |
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| KR20230144465A (en) | 2023-10-16 |
| DE102022203472A1 (en) | 2023-10-12 |
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