TW201835411A - Method of producing a seam beginning needle thread and sewing machine configured to implement a method of this type - Google Patents
Method of producing a seam beginning needle thread and sewing machine configured to implement a method of this type Download PDFInfo
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- TW201835411A TW201835411A TW107102226A TW107102226A TW201835411A TW 201835411 A TW201835411 A TW 201835411A TW 107102226 A TW107102226 A TW 107102226A TW 107102226 A TW107102226 A TW 107102226A TW 201835411 A TW201835411 A TW 201835411A
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B45/00—Applications of measuring devices for determining the length of threads used in sewing machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B47/00—Needle-thread tensioning devices; Applications of tensometers
- D05B47/04—Automatically-controlled tensioning devices
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Abstract
Description
相關申請的引用 德國專利申請No. DE 102017201240.4的內容通過引用結合於此。 技術領域Citation of a related application The content of German Patent Application No. DE 102017201240.4 is incorporated herein by reference. Technical field
本發明涉及製造待縫紉在織物件中的線縫的線縫開頭面線的方法，所述線縫具有尤其至多10 mm的限定的標稱過量線長。本發明還涉及配置成實施這種類型的方法的縫紉機。The invention relates to a method for manufacturing a seam opening face line of a seam to be sewn in a textile piece, said seam having a defined nominal excess thread length of at most 10 mm. The invention also relates to a sewing machine configured to perform a method of this type.
發明背景 例如從文獻EP 2028311A2中可知縫紉機。文獻DE 3232813A1揭露控制縫紉機中的上線的方法。文獻US 4,215,641揭露縫紉機中的面線的電子控制。文獻DE 102011005198A1和文獻DE 102010043906A1也揭露縫紉機和利用這種縫紉機縫紉線縫開頭的方法。文獻DE 10321537A1揭露控制縫紉機的面線的裝置。BACKGROUND OF THE INVENTION Sewing machines are known, for example, from the document EP 2028311 A2. Document DE 3232813 A1 discloses a method for controlling the threading in a sewing machine. Document US 4,215,641 discloses electronic control of the upper thread in a sewing machine. Document DE 102011005198 A1 and document DE 102010043906 A1 also disclose sewing machines and methods for sewing the seam openings using such sewing machines. Document DE 10321537 A1 discloses a device for controlling the upper thread of a sewing machine.
發明概要 本發明的一個目的是如此以可複製的方式製造待縫紉在織物件中的線縫的線縫開頭面線，以便具有限定的標稱過量線長，即，避免越過線縫的線末端的非期望的大量側向突伸。SUMMARY OF THE INVENTION It is an object of the present invention to make in a reproducible manner the seam opening face of a seam to be sewn in a piece of fabric so as to have a defined nominal excess thread length, i.e. to avoid crossing the end of the seam of the seam Unexpectedly large number of lateral protrusions.
這個目的根據本發明通過利用縫紉機製造待縫紉在織物件中的線縫的線縫開頭面線的方法實現，所述線縫開頭面線具有限定的標稱過量線長。所述方法包括以下步驟：借助於面線供給單元提供在可致動面線夾和縫紉針之間的面線行程中的限定面線量，以執行用於面線切割過程的切線線跡；閉合面線夾以防止任何附加面線在閉合面線夾之後被拉出面線供應器；利用以限定方式提供的面線量縫紉切線線跡；且利用面線切割器切掉面線。所述方法借助於縫紉機實施，所述縫紉機包括：面線的供應器；針桿，其包括用於引導面線穿過織物件的縫紉針，縫紉針能夠驅動以往復上下運動；用於線上跡形成期間捕獲面線的成環器；用於形成面線環的線桿；線上桿前方的面線行程中的可致動面線夾；在面線夾後方的面線行程中的面線供給單元；用於切掉兩個相繼線縫之間的面線的面線切割器。This object is achieved according to the invention by a method of using a sewing machine to manufacture a seam opening face of a seam to be sewn in a fabric piece, said seam opening face having a defined nominal excess thread length. The method includes the steps of: providing a limited amount of upper thread in a upper thread stroke between an actuatable upper thread clamp and a sewing needle by means of an upper thread supply unit to perform a tangent stitch for the upper thread cutting process; closing Upper thread clamp to prevent any additional upper thread from being pulled out of the upper thread feeder after closing the upper thread clamp; sewing the thread trimming stitches with the upper thread amount provided in a limited manner; and using the upper thread cutter to cut off the upper thread. The method is implemented by means of a sewing machine, the sewing machine comprising: a supply of upper thread; a needle bar comprising a sewing needle for guiding the upper thread through a fabric piece; the sewing needle can be driven to reciprocate up and down; Looper that captures the upper thread during formation; wire rod for forming the upper thread loop; actuable upper thread clamp in the upper thread stroke in front of the upper thread lever; upper thread supply in the upper thread stroke behind the upper thread clamp Unit; a facial thread cutter for cutting off the facial thread between two successive seams.
根據本發明發現的是，借助於面線供給單元能夠提供可複製的面線量，面線供給單元與面線夾相互作用。提供限定面線量以執行切線線跡。以這種方式，提供限定面線量以製備線縫末端，這一方面確保可複製的線切割過程且另一方面給相繼線縫的線縫開頭提供精確限定面線量。因此可以例如當縫紉線縫的開頭時在不損害正確地成環的情況下和/或當縫紉線縫的開頭時在不損害相應結的正確製造的情況下，確保面線長度優化的短。因此，縫紉線縫的開頭能夠被容易地複製且能夠利用優化少量的面線量執行。面線供給單元可以設置在面線夾和線桿之間的面線行程中。標稱過量線長可以是至多10 mm；對於特定的應用，例如當縫紉皮革時，所述標稱過量線長也可以顯著更高，例如多於20 mm，例如在50 mm的範圍內。標稱過量線長可以在5 mm的範圍內。According to the present invention, it is found that the reproducible amount of the upper thread can be provided by the upper thread supply unit, and the upper thread supply unit interacts with the upper thread clamp. Provides a limited amount of upper thread to perform tangent stitching. In this way, a limited amount of upper thread is provided to prepare the end of the seam, on the one hand ensuring a reproducible thread cutting process and, on the other hand, providing a precisely defined amount of upper thread to the seam beginning of successive seams. It is thus possible, for example, to ensure that the length of the upper thread is optimally short without impairing the correct looping at the beginning of the sewing seam and / or without impairing the correct manufacture of the corresponding knots at the beginning of the sewing seam. Therefore, the beginning of the sewing thread can be easily copied and can be performed with an optimized small amount of upper thread. The upper thread supply unit may be provided in the upper thread stroke between the upper thread clamp and the thread lever. The nominal excess thread length can be up to 10 mm; for certain applications, such as when sewing leather, the nominal excess thread length can also be significantly higher, such as more than 20 mm, such as in the range of 50 mm. Nominal excess wire length can be in the range of 5 mm.
一實施方式配置成使得面線供給單元和縫紉針之間的線阻力在提供限定面線量之前增加且在縫紉切線線跡之前再次減小，這確保當提供限定面線量時，這個數量幾乎完全從面線供應器拉出。對應線阻力產生單元可以由通常無論如何都會設置的面線夾裝置形成。線阻力產生單元可設置在面線供給單元和線桿之間的面線行程中。One embodiment is configured such that the thread resistance between the upper thread supply unit and the sewing needle increases before the limited amount of upper thread is provided and decreases again before sewing the thread trimming stitch, which ensures that when the limited amount of upper thread is provided, this amount is almost completely changed from The upper thread supply is pulled out. The corresponding line resistance generating unit may be formed by a face thread clamp device which is usually provided anyway. The line resistance generating unit may be provided in a stroke of the upper thread between the upper thread supply unit and the thread lever.
配置成實施根據本發明的方法的縫紉機的優點對應於上文相對於所述方法已經說明的優點。縫紉機可具有線上桿和縫紉針之間的面線行程中的附加面線夾。這個附加面線夾也能夠致動。The advantages of a sewing machine configured to implement the method according to the invention correspond to the advantages already explained above with respect to the method. The sewing machine may have an additional upper thread clamp in the upper thread stroke between the thread bar and the sewing needle. This additional upper thread clip can also be actuated.
能夠驅動以執行樞轉運動的可樞轉拉線裝置被證明是合適的面線供給單元。A pivotable stringing device capable of being driven to perform a pivoting motion has proven to be a suitable upper thread supply unit.
提供可移位限止器以用於操作面線供給單元的各種模式，因此尤其允許提供各種限定面線量，面線供給單元與限止器相互作用以設定待提供的面線量。例如，這允許面線供給單元一方面用於上述產生過程且另一方例如用於就文獻EP 2028311A2而言描述的方法。所述兩種方法也能夠如此與彼此結合以使得除可複製地提供以當縫紉線縫的開頭時執行切線線跡的面線量之外，當縫紉第一線跡時如在文獻EP 2028311A2中描述的面線被拉回。A displaceable stopper is provided for various modes of operating the upper thread supply unit, and thus, in particular, various limited upper thread amounts are allowed to be provided. The upper thread supply unit interacts with the stopper to set the upper thread amount to be provided. This allows, for example, the face line supply unit to be used on the one hand for the above-mentioned production process and on the other hand, for example, for the method described for the document EP 2028311 A2. The two methods can also be combined with each other in such a way that, in addition to reproducibly providing the amount of face thread to perform a tangent stitch when the beginning of the seam is sewn, when sewing the first stitch as described in document EP 2028311A2 The upper thread was pulled back.
用於限止器的起重磁體已經被證明在實踐應用中是有用的。Lifting magnets for stoppers have proven to be useful in practical applications.
由面線張緊裝置在面線供給單元後方的面線行程中形成的線阻力產生單元配置成增加和減小線阻力，能夠用於實施這樣的方法，根據所述方法，面線供給單元和縫紉針之間的線阻力在提供限定面線量之前增加且在縫紉切線線跡之前再次減小。The line resistance generating unit formed by the face thread tensioning device in the face thread stroke behind the face thread supply unit is configured to increase and decrease the line resistance, and can be used to implement a method according to which the face thread supply unit and the The thread resistance between the sewing needles increases before a defined amount of upper thread is provided and decreases again before sewing the tangent stitch.
較佳實施例之詳細說明 縫紉機1具有上臂2和下殼狀基板3，兩者由支架4互連以形成C形殼體。臂軸5(參見圖2)安裝在臂2中，臂軸能夠利用容納在支架4中的帶驅動器通過電機被驅動旋轉。中央控制單元6連接到電機，中央控制單元根據圖1中的示意圖設置在上臂2中，但是中央控制單元也能夠設置在另一位置處以及如此相對於縫紉機1設置在外部以便借助於線纜束連接到縫紉機。針桿7如此由臂軸5驅動以便執行往復上下運動，針桿7的下端設有針8。面線9穿過針8的孔眼(參見圖2)。Detailed description of the preferred embodiment The sewing machine 1 has an upper arm 2 and a lower shell-like substrate 3, which are interconnected by a bracket 4 to form a C-shaped housing. An arm shaft 5 (see FIG. 2) is installed in the arm 2, and the arm shaft can be driven to rotate by a motor using a belt driver accommodated in the bracket 4. The central control unit 6 is connected to the motor. The central control unit is arranged in the upper arm 2 according to the schematic diagram in FIG. 1, but the central control unit can also be arranged at another position and thus externally with respect to the sewing machine 1 for the aid of a cable harness. Connected to the sewing machine. The needle bar 7 is thus driven by the arm shaft 5 so as to perform a reciprocating up and down movement, and a needle 8 is provided at the lower end of the needle bar 7. The upper thread 9 passes through the eyelet of the needle 8 (see Fig. 2).
成環器(looper)10設置在基板3中，成環器能夠如此由臂軸5驅動以便執行圍繞豎直旋轉軸線11的旋轉運動(參見圖2)。供應的底線存儲在成環器10的底線捲繞盒12中。A looper 10 is provided in the base plate 3, and the looper can be driven by the arm shaft 5 so as to perform a rotational movement about the vertical rotation axis 11 (see FIG. 2). The supplied lower thread is stored in a lower thread winding box 12 of the looper 10.
圖2示出面線9在縫紉機1中如何被引導的詳細視圖。從針8的孔眼開始，在與面線運輸方向相反的方向上，換言之在針8的孔眼的上游，第一面線夾14設置在供應側面線行程中，面線夾14具有相對於第一面線夾14的基體16可移位的第一夾持板15。第一面線夾14與控制單元6信號通信且在夾線位置和松線位置之間可移位，在夾線位置，面線9在第一面線夾14的位置處被夾持，且在松線位置，第一面線夾14釋放面線9。在第一面線夾14的區域中，面線9在基本豎直方向上延伸。FIG. 2 shows a detailed view of how the upper thread 9 is guided in the sewing machine 1. Starting from the eyelet of the needle 8, in a direction opposite to the direction of transportation of the upper thread, in other words upstream of the eyelet of the needle 8, the first upper thread clip 14 is provided in the stroke for supplying the side thread. The base 16 of the upper thread clamp 14 is a first clamping plate 15 which is displaceable. The first upper thread clamp 14 is in signal communication with the control unit 6 and is displaceable between the thread clamp position and the loose thread position. At the thread clamp position, the upper thread 9 is clamped at the position of the first upper thread clamp 14 and In the loosening position, the first upper thread clip 14 releases the upper thread 9. In the region of the first upper thread clip 14, the upper thread 9 extends in a substantially vertical direction.
借助於基體16中的多個穿線開口17可限定面線9穿過第一面線夾14的通道。在圖中示出的實施方式中，面線9從右側穿過橫向於線運輸方向設置的總共四個穿線開口的第二穿線開口17。The passage of the upper thread 9 through the first upper thread clip 14 can be defined by means of the plurality of threading openings 17 in the base body 16. In the embodiment shown in the figure, the face thread 9 passes from the right side through a second threading opening 17 of a total of four threading openings arranged transversely to the thread transport direction.
線桿18設置在第一面線夾14的上游，其中，所述線桿的往復上下運動也以已知方式來自臂軸5。根據圖2，在設置於線桿18的自由端處的線桿孔眼19和第一面線夾14之間，面線9也穿過設置在基體16的上端處的引導孔眼20。The wire rod 18 is provided upstream of the first upper thread clamp 14, wherein the reciprocating up and down movement of the wire rod also comes from the arm shaft 5 in a known manner. According to FIG. 2, between the wire rod eyelet 19 provided at the free end of the wire rod 18 and the first upper thread clamp 14, the upper thread 9 also passes through the guide eyelet 20 provided at the upper end of the base body 16.
線上桿18的上游，面線9穿過面線張緊彈性單元20a而後穿過面線主要夾持裝置21。所述面線主要夾持裝置21具有兩個主要張緊器22，所述兩個主要張緊器以已知方式操作且當從面線運輸方向上看去時彼此直接前後設置。面線主要張緊裝置21與中央控制裝置6信號通信。當由控制裝置6啟動時，主要張緊器22向面線9提供預設線張緊力。Upstream of the wire rod 18, the upper thread 9 passes through the upper thread tensioning elastic unit 20a and then passes through the upper thread main holding device 21. The upper thread main clamping device 21 has two main tensioners 22 which are operated in a known manner and are arranged directly back and forth with each other when viewed from the upper thread transportation direction. The upper thread main tensioning device 21 is in signal communication with the central control device 6. When activated by the control device 6, the main tensioner 22 provides a preset thread tension force to the upper thread 9.
在面線主要夾持裝置21和線桿18之間，面線9穿過以可調節方式橫向於面線運輸方向可移位的另一引導孔眼23。Between the main thread holding device 21 and the thread rod 18, the upper thread 9 passes through another guide eyelet 23 which is displaceable in an adjustable manner transversely to the upper thread transportation direction.
拉線裝置24設置在兩個主要張緊器22的上游。拉線裝置24起作用為在面線行程中的面線供給單元。拉線裝置24具有可樞轉懸臂25，可樞轉懸臂經由樞轉關節部26以關節的方式連接到第二面線夾28的夾持板27。換言之，拉線裝置24安裝到第二面線夾28的夾持板27。拉線裝置24在所述第二面線夾28後方、換言之在所述第二面線夾的下游設置在面線行程中。拉線裝置24的懸臂25在其自由端處具有線孔29，線孔能夠在上游主要張緊器22和第二面線夾28之間橫向於面線9的線程移位。懸臂25能夠在圖2中示出的中性位置和圖4中示出的拉線位置之間切換，在拉線位置中，面線9在主要張緊器21和第二面線夾28之間、沿比當懸臂25處於其中性位置時的面線9的對應線程長出一線程差的線程行進。在示出的實施方式中，這種線程差例如是20毫米。這種線程差也可以例如具有不同的值、且可以在10 mm和100 mm之間的範圍內、且可達到30 mm、40 mm、50 mm、60 mm、70 mm或80 mm。The wire drawing device 24 is provided upstream of the two main tensioners 22. The thread pulling device 24 functions as a noodle thread supply unit in a noodle thread stroke. The wire drawing device 24 has a pivotable cantilever 25 which is articulatedly connected to the clamping plate 27 of the second upper thread clamp 28 via a pivot joint portion 26. In other words, the wire drawing device 24 is mounted to the holding plate 27 of the second upper thread clamp 28. The thread pulling device 24 is provided behind the second upper thread clamp 28, in other words downstream of the second upper thread clamp, in the upper thread stroke. The cantilever 25 of the wire drawing device 24 has a wire hole 29 at its free end, and the wire hole can be displaced between the main tensioner 22 upstream and the second upper thread clamp 28 transverse to the thread of the upper thread 9. The cantilever 25 can be switched between the neutral position shown in FIG. 2 and the pull-wire position shown in FIG. 4. In the pull-wire position, the upper thread 9 is between the main tensioner 21 and the second upper thread clamp 28. In the meantime, the thread advances one thread worse than the corresponding thread of the face line 9 when the cantilever 25 is in its neutral position. In the embodiment shown, this thread difference is, for example, 20 mm. This thread difference can also have different values, for example, and can be in the range between 10 mm and 100 mm, and can reach 30 mm, 40 mm, 50 mm, 60 mm, 70 mm or 80 mm.
一方面在處於中性位置的線孔29和上游主要張緊器22之間，且另一方面在處於中性位置的線孔和第二面線夾28之間，相應導線銷31在面線行程中設置在安裝到臂2的安裝板30上。在懸臂25的拉線位置中，面線9穿過兩個導線銷31且經由曲折路徑穿過在導線銷31之間的懸臂25的線孔29。所述兩個導線銷31的作用是，無論懸臂25是否處於拉線位置或處於中性位置，面線9穿出第二面線夾28且在相同位置處進入上游主要張緊器22。On the one hand, between the wire hole 29 in the neutral position and the upstream main tensioner 22, and on the other hand, between the wire hole in the neutral position and the second upper thread clamp 28, the corresponding wire pin 31 is in the upper thread It is provided on the mounting plate 30 mounted on the arm 2 during the stroke. In the pull-wire position of the cantilever 25, the face thread 9 passes through the two wire pins 31 and through the wire hole 29 of the cantilever 25 between the wire pins 31 via a zigzag path. The function of the two wire pins 31 is that, regardless of whether the cantilever 25 is in the drawn position or the neutral position, the upper thread 9 passes through the second upper thread clamp 28 and enters the upstream main tensioner 22 at the same position.
懸臂25能夠借助於電磁驅動器在中性位置和拉線位置之間切換，電磁驅動器繼而與控制單元6信號通信。作為電磁驅動器的替代方案，懸臂25也可被氣動地驅動或借助於步進電機驅動。The cantilever 25 can be switched between a neutral position and a cable position by means of an electromagnetic drive, which in turn communicates with the control unit 6 in signal. As an alternative to an electromagnetic drive, the cantilever 25 can also be driven pneumatically or by means of a stepper motor.
在第二面線夾28的上游設置面線預張緊裝置32，面線預張緊裝置以已知方式操作且也可以與控制裝置6信號通信。安裝板30不僅適配引導銷31，而且適配包括所述兩個主要張緊器22的面線主要張緊裝置21、包括安裝拉線裝置24的第二面線夾28、以及面線預張緊裝置32。An upper thread pre-tensioning device 32 is provided upstream of the second upper thread clamp 28. The upper thread pre-tensioning device operates in a known manner and can also be in signal communication with the control device 6. The mounting plate 30 is adapted to not only the guide pin 31 but also the upper thread main tensioning device 21 including the two main tensioners 22, the second upper thread clamp 28 including the installation tensioning device 24, and the upper thread pre-tensioner. Tensioner 32.
在面線預張緊裝置32的上游，面線9穿過穿線開口33，所述穿線開口形成在圖2的上側示出的安裝板30的邊緣區域中，所述邊緣區域向前彎折約90°。在穿線開口33的上游設置面線筒(未詳細示出)，面線筒用作面線供應器。Upstream of the upper thread pre-tensioning device 32, the upper thread 9 passes through the threading opening 33, which is formed in an edge region of the mounting plate 30 shown in the upper side of FIG. 90 °. A upper thread bobbin (not shown in detail) is provided upstream of the threading opening 33, and the upper bobbin serves as a upper thread supplier.
非旋轉地連接到臂軸5末端的手輪34設有角度標尺35，角度標尺指示分成360角度的臂軸5的完整一圈。The hand wheel 34 non-rotatably connected to the end of the arm shaft 5 is provided with an angle scale 35, which indicates a complete circle of the arm shaft 5 divided into 360 degrees.
圖2示出定位在205°處的臂軸5。在這個位置，針桿7已經從其在180°處的下止點向上移動一點，以使得面線環緊挨針8的孔眼形成。在205°位置處，成環器10的成環器尖能夠接合面線環，因此允許面線9被一起帶動。FIG. 2 shows the arm shaft 5 positioned at 205 °. In this position, the needle bar 7 has been moved up a little from its bottom dead center at 180 ° so that the upper thread loop is formed next to the eyelet of the needle 8. At the 205 ° position, the looper tip of the looper 10 can engage the upper thread loop, thereby allowing the upper thread 9 to be driven together.
上述縫紉機1的部件允許執行製造短的線縫開頭面線的方法。The above-mentioned components of the sewing machine 1 allow a method of manufacturing a short seam opening face thread to be performed.
圖5示出織物件的線上縫37的開頭區域中的舉例性部分36，其中，第一線跡是短的而相繼線跡以常規線跡長度縫紉。所述附圖示出具有線縫開頭面線38的面線9和底線或縫合線39，其中，面線的線縫開頭底線的長度與線縫開頭面線38的長度相當。兩個線縫開頭線具有至多10 mm的標稱過量線長A。FIG. 5 shows an exemplary portion 36 in the opening area of the seam 37 of the fabric piece, where the first stitch is short and the successive stitches are sewn at a regular stitch length. The drawing shows the upper thread 9 and the lower thread or suture 39 with a seam beginning face line 38, wherein the length of the seam beginning line of the seam line is equivalent to the length of the seam beginning face line 38. The starting line of the two seams has a nominal excess thread length A of at most 10 mm.
縫紉機1還具有僅在圖1中概述的面線切割器40，用於切掉相繼線縫之間的面線9。The sewing machine 1 also has an upper thread cutter 40 outlined only in FIG. 1 for cutting off the upper thread 9 between successive seams.
為了如此製造線縫37的線縫開頭面線38以便具有至多10 mm的標稱過量線長A，縫紉機1如下操作：In order to manufacture the seam opening face 38 of the seam 37 so as to have a nominal excess thread length A of at most 10 mm, the sewing machine 1 operates as follows:
在第一步驟中，在位於面線夾28和縫紉針8之間的面線行程中提供限定面線量，以縫紉用於面線切割過程的切線線跡。這通過下述方式利用面線供給單元完成：將拉線裝置24在圖2中示出的中性位置和通過在逆時針方向上樞轉懸臂25幾個10°而獲得的拉線位置之間切換。然後閉合面線夾28，因此防止任何附加面線量9在面線夾28已經閉合之後被拉出面線供應器。閉合面線夾28後，拉線裝置24返回到圖2中示出的其中性位置。切線線跡現在能夠利用以限定方式提供的面線量縫紉，線桿28將所提供的面線量傳遞到縫紉針8。縫紉切線線跡後，面線9然後利用面線切割器40切掉。以這種方式，將精確限定的面線過量長度提供到縫紉針的孔眼8以縫紉相繼線縫的開頭。相繼線縫37的線縫開頭面線38然後具有限定的標稱過量線長A。因此，當縫紉線縫37的末端時且當縫紉相繼線縫37的開頭時，提供精確可複製的面線量，因此線上縫的開頭處且線上縫的末端處獲得短的過量面線長度。In a first step, a limited amount of upper thread is provided in the upper thread stroke between the upper thread clamp 28 and the sewing needle 8 to sew a tangent stitch for the upper thread cutting process. This is accomplished by using the upper thread supply unit by placing the stringing device 24 between the neutral position shown in FIG. 2 and the stringing position obtained by pivoting the cantilever 25 in the counterclockwise direction by several 10 ° Switch. The upper thread clamp 28 is then closed, thus preventing any additional upper thread quantity 9 from being pulled out of the upper thread feeder after the upper thread clamp 28 has been closed. After the upper thread clamp 28 is closed, the thread pulling device 24 returns to the neutral position shown in FIG. 2. The tangent stitch can now be sewn with the upper thread amount provided in a limited manner, and the thread lever 28 transmits the provided upper thread amount to the sewing needle 8. After the thread trimming stitch is sewn, the upper thread 9 is then cut by the upper thread cutter 40. In this way, the precisely defined excess length of the upper thread is provided to the eyelet 8 of the sewing needle to start the beginning of successive seams. The seam beginning face 38 of the successive seams 37 then has a defined nominal excess thread length A. Therefore, when sewing the ends of the seam 37 and when sewing the beginning of successive seams 37, an accurate and reproducible amount of upper thread is provided, so a short excess of upper thread length is obtained at the beginning of the seam and at the end of the seam.
根據上述的圖1和2的面線引導裝置也允許面線9在縫紉線縫37的開頭時、換言之在縫紉第一線跡時被拉回，因此線縫開頭面線38可變得甚至更短。例如在文獻EP 2028311A1中描述了遠離線縫拉拽面線38的這種程序。The upper thread guide according to the above-mentioned FIGS. 1 and 2 also allows the upper thread 9 to be pulled back at the beginning of the sewing seam 37, in other words when the first stitch is sewn, so the upper thread 38 at the beginning of the seam can become even more short. Such a procedure for pulling the upper thread 38 away from the seam is described, for example, in the document EP 2028311 A1.
當如上所述的縫紉線縫的開頭時，與遠離線縫的開頭拉拽線的這種程序相反地，在縫紉切線線跡之前，換言之，在完成線跡形成時，係致動拉線裝置24。這兩種方法可與彼此結合，換言之基本原理已知的遠離線縫的開頭拉拽線的方法和以上詳細描述的給線切割供給線的方法可與彼此結合。When sewing the beginning of a seam as described above, in contrast to this procedure of pulling the thread away from the beginning of the seam, the thread-drawing device is actuated before the stitch is cut, in other words, when the formation of the seam is completed twenty four. These two methods can be combined with each other, in other words, the method of pulling the thread away from the beginning of the seam and the method of feeding and cutting the wire, described in detail above, can be combined with each other.
在製造方法的變型中，拉線裝置24和針8之間的線阻力在提供限定面線量之前增加且在縫紉切線線跡之前再次減小。這種通過下述方式完成：在提供限定面線量之前相應地啟動主要張緊器22以增加線阻力，且在提供限定面線量之後且在縫紉切線線跡之前解除啟動主要張緊器22以減小線阻力。線阻力產生單元由面線主要張緊裝置21形成。In a variant of the manufacturing method, the thread resistance between the thread-pulling device 24 and the needle 8 is increased before a limited amount of upper thread is provided and again reduced before the thread trimming stitch is sewn. This is done by activating the main tensioner 22 accordingly to increase the thread resistance before providing a limited amount of upper thread, and deactivating the main tensioner 22 to reduce the amount of thread after providing the limited amount of upper thread and before sewing the thread trimmer. Small line resistance. The line resistance generating unit is formed by the upper thread main tensioner 21.
在後文中將借助於圖3和4說明面線引導裝置的部件的另一實施方式，其能夠用作上文參考圖1和2說明的縫紉機1中使用的方案的替代。上文已經參考圖1和2描述的根據圖3和4的實施方式的部件和功能採用相同的附圖標記且不會再次詳細討論。Hereinafter, another embodiment of the components of the upper thread guide device will be explained with the aid of FIGS. 3 and 4, which can be used as an alternative to the scheme used in the sewing machine 1 explained above with reference to FIGS. 1 and 2. The components and functions of the embodiment according to FIGS. 3 and 4 that have been described above with reference to FIGS. 1 and 2 bear the same reference numerals and will not be discussed again in detail.
在根據圖3和4的實施方式中，拉線裝置24和面線夾41配置為分開的部件，其功能否則對應於根據圖1和2的實施方式的面線夾28的功能。在根據圖3和4的實施方式中，用於拉線裝置24的懸臂25的樞轉驅動器由旋轉磁體42形成。In the embodiment according to FIGS. 3 and 4, the stringing device 24 and the upper thread clip 41 are configured as separate parts, the functions of which otherwise correspond to the functions of the upper thread clip 28 according to the embodiment of FIGS. 1 and 2. In the embodiment according to FIGS. 3 and 4, the pivoting drive of the cantilever 25 of the cable drawing device 24 is formed by a rotating magnet 42.
作為導線銷31的替代，根據圖3和4的面線引導裝置設有兩個線孔43。As an alternative to the lead pin 31, the upper thread guide according to FIGS. 3 and 4 is provided with two wire holes 43.
根據圖3和4的面線引導裝置具有用於懸臂25的相應拉線位置的可移位限止器44。限止器44包括具有起重活塞46的起重磁體45，起重活塞在圖3中示出為處於完全縮回位置且在圖4中示出為處於完全延伸位置。限止器還具有緊固地安裝到安裝板30的止動部件47。The upper thread guide according to FIGS. 3 and 4 has a displaceable stop 44 for the corresponding cable position of the cantilever 25. The stop 44 includes a lifting magnet 45 having a lifting piston 46 shown in FIG. 3 in a fully retracted position and in FIG. 4 as a fully extended position. The stopper also has a stopper member 47 that is fastened to the mounting plate 30.
圖3示出拉線裝置24、換言之面線供給單元，其處於給線切割功能提供面線的拉線位置，其換言之處於通過拉線裝置24如上所述的提供限定面線量以製備切線線跡的位置(止動位置“供線”)。在這種供線和拉線位置中獲得的線程差例如可以是50 mm。在根據圖3的這種供線位置中，起重活塞46已經縮回且因此不再起作用為限止器。繼而，用於懸臂25的止動部件47現在起作用為限止器。FIG. 3 shows the drawing device 24, in other words, a noodle thread supply unit, which is in a drawing position where the noodle is provided for the wire cutting function, in other words, it is provided by the drawing device 24 to provide a limited amount of noodles as described above to prepare a tangent stitch Position (stop position "supply line"). The thread difference obtained in such a supply and pull position can be, for example, 50 mm. In this line feed position according to FIG. 3, the lifting piston 46 has been retracted and therefore no longer functions as a stop. Then, the stopper 47 for the cantilever 25 now functions as a stopper.
圖4示出當依據在文獻EP 2028311A2中描述的順序遠離線縫拉拽線時採用的拉線位置(限止器的“拉線”位置)。在這個拉線位置中，遠離線縫的開頭地拉拽面線以使得獲得例如20 mm的線程差。在限止器的“拉線”位置中的線程差小於在限止器的“供線”位置中的線程差。在根據圖4的拉線位置中，起重活塞46已經完全延伸，因此起作用為用於懸臂25的限止器。止動部件47是無作用的。Fig. 4 shows the position of the drawstring (the "drawout" position of the stopper) used when pulling the thread away from the seam according to the sequence described in the document EP 2028311A2. In this drawing position, the upper thread is pulled away from the beginning of the seam so that a thread difference of, for example, 20 mm is obtained. The thread difference in the "pull" position of the stopper is smaller than the thread difference in the "supply" position of the stopper. In the pull-wire position according to FIG. 4, the lifting piston 46 has been fully extended and thus functions as a stop for the cantilever 25. The stop member 47 is ineffective.
這種借助於面線供給單元的供給過程能夠與面線切割器40一起啟動。如果面線切割器40被凸輪控制，則一啟動用於面線切割器40的凸輪控制器，拉線裝置24就能夠從中性位置切換到拉線位置。This supply process by means of the upper thread supply unit can be started together with the upper thread cutter 40. If the upper thread cutter 40 is controlled by a cam, once the cam controller for the upper thread cutter 40 is activated, the wire drawing device 24 can switch from the neutral position to the wire drawing position.
上述供線和拉線方法借助於與上述從動部件中的每個信號通信的控制單元6控制。The above-mentioned method of supplying and drawing a wire is controlled by means of a control unit 6 which communicates with each signal in the above-mentioned driven member.
1‧‧‧縫紉機1‧‧‧ sewing machine
2‧‧‧上臂2‧‧‧ upper arm
3‧‧‧下殼狀基板3‧‧‧ lower shell substrate
4‧‧‧支架4‧‧‧ bracket
5‧‧‧臂軸5‧‧‧ arm shaft
6‧‧‧中央控制單元6‧‧‧ Central Control Unit
7‧‧‧針桿7‧‧‧ Needle bar
8‧‧‧縫紉針8‧‧‧ sewing needle
9‧‧‧面線9‧‧‧ Noodle
10‧‧‧成環器10‧‧‧ Looper
11‧‧‧旋轉軸線11‧‧‧ rotation axis
12‧‧‧底線捲繞盒12‧‧‧ Bottom thread winding box
14‧‧‧第一面線夾14‧‧‧First upper thread clip
15‧‧‧第一夾持板15‧‧‧The first clamping plate
16‧‧‧基體16‧‧‧ Matrix
17、33‧‧‧穿線開口17, 33‧‧‧Threading opening
18‧‧‧線桿18‧‧‧ pole
19‧‧‧線桿孔眼19‧‧‧ wire rod eyelet
20a‧‧‧面線張緊彈性單元20a‧‧‧ Upper thread tensioning elastic unit
21‧‧‧面線主要夾持裝置；線阻力產生單元21‧‧‧ Main thread holding device; line resistance generating unit
22‧‧‧張緊器22‧‧‧Tensioner
23‧‧‧引導孔眼23‧‧‧ Guide eyelet
24‧‧‧拉線裝置；面線供給單元24‧‧‧Drawing device; Upper thread supply unit
25‧‧‧懸臂25‧‧‧ cantilever
26‧‧‧樞轉關節部26‧‧‧ Pivot joint
27‧‧‧夾持板27‧‧‧Clamping plate
28、41‧‧‧面線夾28, 41‧‧‧ Upper thread clip
29、43‧‧‧線孔29, 43‧‧‧ line hole
30‧‧‧安裝板30‧‧‧Mounting plate
31‧‧‧導線銷31‧‧‧wire pin
32‧‧‧面線預張緊裝置32‧‧‧ Upper thread pre-tensioning device
34‧‧‧手輪34‧‧‧Handwheel
35‧‧‧角度標尺35‧‧‧Angle Ruler
36‧‧‧織物件36‧‧‧ Fabric pieces
37‧‧‧線縫37‧‧‧ suture
38‧‧‧線縫開頭面線38‧‧‧ Thread at the beginning of the seam
39‧‧‧縫合線39‧‧‧ suture
40‧‧‧面線切割器40‧‧‧ Upper thread cutter
41‧‧‧面線夾41‧‧‧ Upper thread clip
44‧‧‧限止器44‧‧‧stop
45‧‧‧起重磁體45‧‧‧Lifting magnet
46‧‧‧起重活塞46‧‧‧Lifting piston
47‧‧‧止動部件47‧‧‧Stopper
205°‧‧‧定位在205°位置處205 ° ‧‧‧ is positioned at 205 °
A‧‧‧線長A‧‧‧line length
本發明的典型實施方式在後文中將參考附圖更詳細的描述，其中： 圖1示出縫紉機的透視前視圖； 圖2示出根據以上描述的縫紉機的面線引導裝置的細節，所述細節以比在圖1中更大的比例示出； 圖3示出包括面線引導裝置的另一實施方式的部件的安裝板的平面圖，所述部件可以利用在根據圖1的縫紉機中，可移位限止器處於“供線”位置； 圖4示出根據圖3的部件，可移位限止器處於“拉線”位置；且 圖5示出沿由面線和底線限定的縫紉平面穿過雙層織物件的一部分的示意性豎直剖視圖，其中，線縫的開頭是可見的。Exemplary embodiments of the present invention will be described in more detail later with reference to the drawings, in which: FIG. 1 shows a perspective front view of the sewing machine; FIG. 2 shows details of the upper thread guide of the sewing machine according to the above description, the details 1 is shown on a larger scale than in FIG. 1; FIG. 3 shows a plan view of a mounting plate including components of another embodiment of the upper thread guide, which components can be used in the sewing machine according to FIG. The position limiter is in the "supply line" position; Fig. 4 shows the component according to Fig. 3, and the displaceable stopper is in the "draw line" position; and Fig. 5 shows the double thread along the sewing plane defined by the upper and lower threads. A schematic vertical cross-sectional view of a portion of a ply fabric piece, wherein the beginning of the seam is visible.
Claims (7)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ??102017201240.4 | 2017-01-26 | ||
| DE102017201240.4 | 2017-01-26 | ||
| DE102017201240.4A DE102017201240A1 (en) | 2017-01-26 | 2017-01-26 | Method for producing a seam beginning upper thread of a seam to be formed in sewing material with a defined nominal seam projection and sewing machine for carrying out such a method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201835411A true TW201835411A (en) | 2018-10-01 |
| TWI787232B TWI787232B (en) | 2022-12-21 |
Family
ID=60782018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107102226A TWI787232B (en) | 2017-01-26 | 2018-01-22 | Method of producing a seam beginning needle thread and sewing machine configured to implement a method of this type |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3354784B1 (en) |
| KR (1) | KR102481545B1 (en) |
| CN (1) | CN108360163B (en) |
| DE (1) | DE102017201240A1 (en) |
| TW (1) | TWI787232B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430736A (en) * | 2021-07-28 | 2021-09-24 | 佛山市启创科技发展有限公司 | Automatic wire feeding device of computer gun-felted carpet machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215641A (en) | 1979-07-05 | 1980-08-05 | The Singer Company | Electronic control of needle thread in a sewing machine |
| DE3232813A1 (en) | 1982-08-26 | 1984-03-08 | Tokyo Juki Industrial Co., Ltd., Tokyo | Process for controlling the over-thread in a sewing machine |
| CN1101491C (en) * | 1999-06-28 | 2003-02-12 | 重机株式会社 | Thread tension controller for sewing machine |
| JP4047624B2 (en) | 2002-05-14 | 2008-02-13 | Ｊｕｋｉ株式会社 | 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 |
| DE102009036988A1 (en) * | 2009-05-12 | 2010-12-16 | Nähmaschinenfabrik Emil Stutznäcker GmbH & Co. KG | Method for sewing a sewing material |
| DE102010043906A1 (en) | 2010-11-15 | 2012-05-16 | Dürkopp Adler AG | Sewing machine and method for sewing a seam beginning with such a sewing machine |
| DE102011005198A1 (en) * | 2011-03-07 | 2012-09-13 | Dürkopp Adler AG | Sewing machine and method for sewing a seam beginning with such a sewing machine |
-
2017
- 2017-01-26 DE DE102017201240.4A patent/DE102017201240A1/en not_active Withdrawn
- 2017-12-22 EP EP17209953.3A patent/EP3354784B1/en active Active
-
2018
- 2018-01-22 TW TW107102226A patent/TWI787232B/en active
- 2018-01-24 CN CN201810067656.3A patent/CN108360163B/en active Active
- 2018-01-25 KR KR1020180009447A patent/KR102481545B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| TWI787232B (en) | 2022-12-21 |
| CN108360163A (en) | 2018-08-03 |
| CN108360163B (en) | 2021-02-05 |
| KR20180088303A (en) | 2018-08-03 |
| EP3354784B1 (en) | 2020-03-18 |
| KR102481545B1 (en) | 2022-12-27 |
| DE102017201240A1 (en) | 2018-07-26 |
| EP3354784A1 (en) | 2018-08-01 |
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