TWI550157B - Sewing machine on the thread trimming mechanism - Google Patents
Sewing machine on the thread trimming mechanism Download PDFInfo
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- TWI550157B TWI550157B TW103112443A TW103112443A TWI550157B TW I550157 B TWI550157 B TW I550157B TW 103112443 A TW103112443 A TW 103112443A TW 103112443 A TW103112443 A TW 103112443A TW I550157 B TWI550157 B TW I550157B
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Description
本發明有關於一種適用於縫紉機的針線剪線機構，特別是指一種安裝於縫製鈕扣孔的自動縫紉機車頭進行針線剪斷功能的上剪線機構。 The invention relates to a needle thread trimming mechanism suitable for a sewing machine, in particular to an upper thread trimming mechanism for a needle thread cutting function of an automatic sewing machine head mounted on a sewing button hole.
目前於現有的自動縫製鈕扣孔縫紉機上均裝設有一自動切線結構，其主要目的是將布料放入開始車縫到位後，藉由自動切線結構的切斷手段將縫線與布料分離，節省縫製的人工及時間。 At present, an automatic tangential structure is installed on the existing automatic sewing button hole sewing machine, and the main purpose thereof is to separate the sewing thread from the cloth by the cutting method of the automatic tangential structure after the cloth is put into the starting sewing position, thereby saving sewing. Labor and time.
請參閱第1圖所示，目前現有的針線切斷裝置是在縫紉機上設置一馬達40，而切斷裝置包括一凸輪機構41、一固持機構42、一支撐機構43、一剪刀驅動組44及一針線剪刀45，其中上述凸輪機構41包含受所述馬達40驅動而旋轉的一凸輪411、受上述凸輪411驅動而擺動的一剪刀凸輪臂412及一定位凸輪臂413；上述固持機構42包含一連接於縫紉機的固定臂421及一可相對於上述固定臂421作滑動移位的移動組件422；上述支撐機構43包含一受上述定位凸輪臂413驅動的座板431及一連接於上述座板431一端的支撐臂組432，上述座板431另一端連接於上述移動組件422上，其中，上述座板431設有一作為前、後復歸作用力的第一拉伸彈簧433以及一作為左、右復歸作用力的第二拉伸彈簧434；上述剪刀驅動組44包含一連接於上述剪刀凸輪臂412的驅動臂441及一連接於上述驅動臂441和樞接於上述支撐臂組432的撥桿442；上述針線剪刀45包含一連接於上述支 撐臂組432的固定刀刃451及一連接於上述固定刀刃451的活動刀刃452，上述活動刀刃452係受上述撥桿442驅動而可相對於上述固定刀刃451作擺動。 Referring to FIG. 1 , the conventional needle thread cutting device is provided with a motor 40 on the sewing machine, and the cutting device comprises a cam mechanism 41 , a holding mechanism 42 , a supporting mechanism 43 , a scissors driving group 44 and a needle thread scissors 45, wherein the cam mechanism 41 includes a cam 411 that is driven to rotate by the motor 40, a scissor cam arm 412 that is driven by the cam 411 to swing, and a positioning cam arm 413; the retaining mechanism 42 includes a a fixed arm 421 coupled to the sewing machine and a moving assembly 422 slidably displaceable relative to the fixed arm 421; the support mechanism 43 includes a seat plate 431 driven by the positioning cam arm 413 and a base plate 431 coupled thereto a support arm set 432 at one end, the other end of the seat plate 431 is connected to the moving component 422, wherein the seat plate 431 is provided with a first tension spring 433 as a front and rear return force and a return to the left and right a second tension spring 434; the scissors driving group 44 includes a driving arm 441 coupled to the scissors cam arm 412 and a connecting arm 441 and pivoting to the branch 432 of lever arm 442 group; and the scissors 45 comprises a thread connected to the support The fixed blade 451 of the arm set 432 and the movable blade 452 connected to the fixed blade 451 are driven by the lever 442 to swing relative to the fixed blade 451.
然而，在目前現有針線切斷裝置中，驅使針線剪刀前、後、左、右方向的復歸，主要是透過兩個不同的拉伸彈簧帶動，但採用拉伸彈簧帶動往往無法準確定位而容易造成有偏位現象，進而讓縫線剪切的效果不穩定；因此，實有必要設計出一款可準確配置刀刃移動位置的針線切斷機構。 However, in the current needle thread cutting device, the reversion of the front, rear, left and right directions of the needle scissors is mainly driven by two different tension springs, but the tension spring is often unable to accurately locate and is easy to cause. There is a bias phenomenon, which makes the sewing shearing effect unstable; therefore, it is necessary to design a needle cutting mechanism that can accurately position the blade.
本發明之主要目的在於提供一種能夠準確進行位移、偏擺以及剪切三種運動狀態的上剪線機構，主要是透過連桿之間的平行移動，讓上剪線刀組在分別受到導引、推抵以及限位手段的作用下，能夠精準地分別進行位移與偏擺運動，進而使上剪線機構能重複地由待機位置移動至刀刃展開位置，並在保持展開狀態下移動到準備剪線位置，之後再移動到剪線的閉合位置完成剪切動作，最後返回待機位置完成一剪線週期。 The main object of the present invention is to provide an upper thread trimming mechanism capable of accurately performing three movement states of displacement, yaw and shear, mainly through parallel movement between the links, so that the upper thread cutter group is guided separately, Under the action of the pushing and limiting means, the displacement and yaw motion can be accurately performed separately, so that the upper thread trimming mechanism can be repeatedly moved from the standby position to the blade unfolding position, and moved to the ready-to-cut line while remaining in the unfolded state. Position, then move to the closed position of the trimming line to complete the cutting action, and finally return to the standby position to complete a trimming cycle.
本發明之另一目的在於上剪線機構設計有一能夠卡擎定位的限位手段，使上剪線刀組於刀刃展開時能夠限制刀組偏擺與刀刃樞轉動作，進而達到準確位移的效果。 Another object of the present invention is that the upper thread trimming mechanism is designed with a limit means capable of positioning the card, so that the upper thread cutter group can limit the yaw and the blade pivoting motion when the blade is deployed, thereby achieving accurate displacement effect. .
為達上述目的，本發明上剪線機構主要是安裝於一縫紉機的車頭，包含一配合安裝於上述車頭並形成剪線動作驅動源的驅動裝置、一安裝於上述驅動裝置的移動連桿組、一同樣安裝於上述驅動裝置的推抵連桿組、一進行縫線剪裁的上剪線刀組。 In order to achieve the above object, the upper thread trimming mechanism of the present invention is mainly mounted on a front end of a sewing machine, and includes a driving device that is coupled to the front end and forms a driving source for the trimming action, and a moving link set mounted on the driving device. A push-to-link set that is also attached to the above-described drive device, and an upper wire cutter set that performs slit cutting.
其中，上述驅動裝置、移動連桿組以及推抵連桿組三者之間具有一導引裝置，當上述驅動裝置同步帶動上述移動連桿組與上述推抵連桿組，上述移動連桿組與推抵連桿組之間將受上述導引裝置作用，將驅動裝置的旋轉運動轉化 為直線運動，進而在相同方向產生平行的相對位移。 Wherein, the driving device, the moving link group and the push-to-link group have a guiding device, and when the driving device synchronously drives the moving link group and the pushing link group, the moving link group Between the push-to-link group and the above-mentioned guiding device, the rotational motion of the driving device is transformed It moves in a straight line, which in turn produces parallel relative displacements in the same direction.
本發明驅動裝置設有一驅動馬達，且上述驅動馬達同軸連接一第一凸輪以及一第二凸輪；本發明移動連桿組裝於上述第一凸輪，並受上述第一凸輪帶動位移；本發明推抵連桿組亦組裝於上述第一凸輪，並與上述移動連桿組同步受到上述第一凸輪帶動位移；本發明上剪線刀組裝設於上述移動連桿組上，具有兩互相樞設的刀刃，其中一刀刃為固定刀刃，另一刀刃為一可相對偏擺的活動刀刃。 The driving device of the present invention is provided with a driving motor, and the driving motor is coaxially connected to a first cam and a second cam; the moving link of the present invention is assembled to the first cam and is displaced by the first cam; The link set is also assembled to the first cam, and is driven by the first cam in synchronization with the moving link set; the upper wire cutter of the present invention is assembled on the moving link set, and has two mutually pivoted edges. One of the blades is a fixed blade and the other blade is a movable blade that can be relatively yawed.
而本發明導引裝置由複數個導引桿與對應組裝的套筒構成，上述導引桿安裝在上述驅動裝置形成一導引路徑，而上述套筒受到上述導引桿限制產生一與上述導引路徑相同的位移軌跡。 The guiding device of the present invention comprises a plurality of guiding rods and correspondingly assembled sleeves, wherein the guiding rods are mounted on the driving device to form a guiding path, and the sleeve is restricted by the guiding rod to generate a guide The same displacement trajectory of the path.
於一較佳實施例中，本發明上剪線機構進一步包含一介設於上述移動連桿組與推抵連桿組之間的推抵裝置，上述推抵裝置由一滾子與一對應接觸的板凸輪構成，上述滾子設置在上述推抵連桿組的端部位置，而上述板凸輪設置在上述移動連桿組上的對應滾子位置，並形成一具高度位差的階梯狀結構。 In a preferred embodiment, the upper thread trimming mechanism of the present invention further includes a pushing device disposed between the moving link set and the push-to-reach link set, wherein the pushing device is in contact with a roller by a roller. The plate cam is configured such that the roller is disposed at an end position of the pushing link group, and the plate cam is disposed at a corresponding roller position on the moving link group, and forms a stepped structure having a height difference.
因此，當上述驅動裝置同步帶動上述移動連桿組與上述推抵連桿組，上述移動連桿組與推抵連桿組之間將受上述推抵裝置作用，進而使上述移動連桿組相對於上述推抵連桿組產生偏擺。 Therefore, when the driving device synchronously drives the moving link group and the pushing link group, the moving link group and the pushing link group are subjected to the pushing device, thereby making the moving link group relatively The yaw is generated by pushing the link group as described above.
除此之外，本發明上剪線機構更包含一與上述第二凸輪連接的剪線連桿組，上述剪線連桿組一端樞設於上述移動連桿組，另一端與上述上剪線刀組相連接，受上述第二凸輪帶動時將產生一偏擺位移，帶動上述上剪線刀組的兩刀刃相對產生偏轉。 In addition, the upper thread trimming mechanism of the present invention further includes a trimming link set connected to the second cam, wherein the trimming link set is pivoted at one end of the moving link set, and the other end is connected to the upper trimming line. The knives are connected to each other, and a yaw displacement is generated when the second cam is driven, and the two cutting edges of the upper slashing cutter group are relatively deflected.
再者，上述移動連桿組以及剪線連桿組之間進一步設有一限制裝置，上述限制裝置由一限位槽、一固定銷以 及一彈簧所構成，上述限位槽設置於上述剪線連桿組上，且上述固定銷穿設於上述限位槽中，一端固定於上述移動連桿組，另一端連接上述彈簧，而上述彈簧另連接於上述移動連桿組，提供縱向歸位的彈力。 Furthermore, a limiting device is further disposed between the moving link set and the trimming link set, and the limiting device is defined by a limiting slot and a fixing pin. And a spring, the limiting slot is disposed on the trimming link set, and the fixing pin is disposed in the limiting slot, one end is fixed to the moving link set, and the other end is connected to the spring, and the above The spring is further coupled to the moving linkage set to provide a spring force for longitudinal homing.
因此，當上述驅動裝置同步帶動上述移動連桿組與上述剪線連桿組，上述移動連桿組與剪線連桿組之間將藉由上述固定銷與限位槽的活動連結，使上述剪線連桿組可跟隨上述移動連桿組作水平方向的同步偏擺，並容許上述移動連桿組與簡獻連桿組之間作平行的相對移動。 Therefore, when the driving device synchronously drives the moving link group and the trimming link group, the moving link group and the trimming link group are coupled to each other by the movable pin and the limiting slot. The trimming link group can follow the above-mentioned moving link set for the horizontal yaw yaw and allow parallel relative movement between the moving link set and the simplified link set.
又，本發明上剪線機構有一與上述推抵裝置配合的限位裝置，上述限位裝置包含一導引軌道組、一啟動桿以及一扭簧，上述導引軌道組安裝於上述驅動裝置，具有兩互相形成高低位差的導引軌道，上述啟動桿一端透過一連接件安裝於上述移動連桿組，另一端則位於上述兩導引軌道上方，而上述扭簧一端卡抵於上述連接件，另一端卡抵於上述啟動桿上方，並驅使上述啟動桿向下移動抵頂上述兩導引軌道的其中之一。 Moreover, the upper thread trimming mechanism of the present invention has a limiting device that cooperates with the pushing device. The limiting device includes a guiding track group, a starting rod and a torsion spring, and the guiding track group is mounted on the driving device. Having two guide rails which form a height difference with each other, one end of the starter rod is mounted on the moving link set through a connecting member, and the other end is located above the two guiding rails, and one end of the torsion spring is engaged with the connecting piece The other end of the card is placed above the actuating lever and drives the actuating lever to move downwardly against one of the two guiding tracks.
於一可行實施例中，上述導引軌道組設有一固定片，且上述固定片開設一通孔形成其中一導引軌道，而上述固定片一側另安裝一調整片，並由上述調整片的頂部輪廓形成另一導引軌道。其中，上述調整片具有一高度位置低於上述導引軌道的水平部，並由上述水平部延伸至端部形成一高度逐漸增加的上升部。 In a possible embodiment, the guiding track group is provided with a fixing piece, and the fixing piece defines a through hole to form one guiding track, and one side of the fixing piece is further mounted with a adjusting piece, and the top of the adjusting piece is The profile forms another guiding track. Wherein, the adjusting piece has a horizontal portion whose height position is lower than the guiding track, and the horizontal portion extends to the end portion to form a rising portion whose height gradually increases.
本發明的特點在於上剪線機構在驅動裝置、移動連桿組與推抵連桿組之間設計一導引裝置，驅使移動連桿組與推抵連桿組之間能夠平行位移，而移動連桿組與剪線連桿組之間亦能夠同步偏擺及相對平行移動，此外，移動連桿組與推抵連桿組另設計有一推抵裝置，進而讓三連桿組在互相平行位移過程中，產生位移、擺動以及刀刃樞轉的三種運動 狀態，進而達到精準剪線之目的。 The invention is characterized in that the upper thread trimming mechanism designs a guiding device between the driving device, the moving connecting rod group and the pushing abutting link group, and drives the moving connecting rod group and the pushing abutting link group to be parallelly displaced and moved. The linkage group and the trimming link group can also synchronously yaw and relatively parallelly move. In addition, the moving link group and the push-to-reach link set are further designed with a pushing device, so that the three link groups are displaced parallel to each other. During the process, three movements of displacement, oscillation, and blade pivoting are generated. The state, in order to achieve the purpose of accurate trimming.
(習知) (known)
40‧‧‧馬達 40‧‧‧Motor
41‧‧‧凸輪機構 41‧‧‧Cam mechanism
411‧‧‧凸輪 411‧‧‧ cam
412‧‧‧剪刀凸輪臂 412‧‧‧Scissor cam arm
413‧‧‧定位凸輪臂 413‧‧‧ Positioning cam arm
42‧‧‧固持機構 42‧‧‧ Holding institutions
421‧‧‧固定臂 421‧‧‧Fixed Arm
422‧‧‧移動組件 422‧‧‧Mobile components
43‧‧‧支撐機構 43‧‧‧Support institutions
431‧‧‧座板 431‧‧‧ seat board
432‧‧‧支撐臂組 432‧‧‧Support arm set
433‧‧‧第一拉伸彈簧 433‧‧‧First tension spring
434‧‧‧第二拉伸彈簧 434‧‧‧Second tension spring
44‧‧‧剪刀驅動組 44‧‧‧Scissor drive group
441‧‧‧驅動臂 441‧‧‧ drive arm
442‧‧‧撥桿 442‧‧ ‧bar
45‧‧‧針線剪刀 45‧‧‧Needle scissors
451‧‧‧固定刀刃 451‧‧‧Fixed blade
452‧‧‧活動刀刃 452‧‧‧ active blade
(本發明) (this invention)
1‧‧‧縫紉機 1‧‧‧ sewing machine
10‧‧‧車頭 10‧‧‧ head
2‧‧‧上剪線機構 2‧‧‧Upper thread cutting mechanism
20‧‧‧驅動裝置 20‧‧‧ drive
201‧‧‧驅動馬達 201‧‧‧Drive motor
202‧‧‧第一凸輪 202‧‧‧First Cam
203‧‧‧第二凸輪 203‧‧‧second cam
204‧‧‧第一槽軌 204‧‧‧First groove track
205‧‧‧第二槽軌 205‧‧‧second groove track
206‧‧‧第一滾輪 206‧‧‧First wheel
207‧‧‧第二滾輪 207‧‧‧Second wheel
208‧‧‧第三滾輪 208‧‧‧third wheel
209‧‧‧導引桿 209‧‧‧ Guide rod
21‧‧‧移動連桿組 21‧‧‧Mobile Link Set
211‧‧‧移動桿 211‧‧‧ moving rod
212‧‧‧剪刀桿 212‧‧‧Scissors
213‧‧‧套筒 213‧‧‧ sleeve
214‧‧‧輪軸 214‧‧‧ axle
215‧‧‧偏移支點 215‧‧‧ offset fulcrum
216‧‧‧板凸輪 216‧‧‧ board cam
217‧‧‧彈性件 217‧‧‧Flexible parts
22‧‧‧上剪線刀組 22‧‧‧Upper wire cutter
221‧‧‧固定片 221‧‧‧Fixed tablets
222‧‧‧連接片 222‧‧‧Connecting piece
223‧‧‧第一刀刃 223‧‧‧first blade
224‧‧‧第二刀刃 224‧‧‧second blade
225‧‧‧壓線片 225‧‧‧Crimping film
226‧‧‧擋片 226‧‧ ‧Flap
227‧‧‧擺動板 227‧‧‧swing plate
228‧‧‧扭簧 228‧‧‧torsion spring
229‧‧‧推動輪 229‧‧‧ push wheel
220‧‧‧斜面 220‧‧‧Bevel
23‧‧‧推抵連桿組 23‧‧‧Pushing the connecting rod set
231‧‧‧L型桿 231‧‧‧L-bar
232‧‧‧套筒 232‧‧‧ sleeve
233‧‧‧輪軸 233‧‧·Axle
234‧‧‧滾子 234‧‧‧Roller
24‧‧‧剪線連桿組 24‧‧‧Threaded connecting rod set
241‧‧‧擺動桿 241‧‧‧Swing rod
242‧‧‧隨動桿 242‧‧‧Following rod
243‧‧‧凸軸 243‧‧‧Shaft axis
244‧‧‧固定銷 244‧‧‧fixed pin
245‧‧‧彈簧 245‧‧ ‧ spring
246‧‧‧限位槽 246‧‧‧ Limit slot
25‧‧‧導引裝置 25‧‧‧Guide
26‧‧‧推抵裝置 26‧‧‧Pushing device
27‧‧‧限制裝置 27‧‧‧Restriction device
28‧‧‧限位裝置 28‧‧‧Limiting device
281‧‧‧導引軌道組 281‧‧‧Guided track group
282‧‧‧啟動桿 282‧‧‧Starting lever
282a‧‧‧卡勾 282a‧‧‧ hook
283‧‧‧扭簧 283‧‧‧torsion spring
284‧‧‧第一導引軌道 284‧‧‧First guiding track
285‧‧‧第二導引軌道 285‧‧‧Second guiding track
286‧‧‧連接件 286‧‧‧Connecting parts
287‧‧‧固定片 287‧‧‧Fixed tablets
288‧‧‧通孔 288‧‧‧through hole
289‧‧‧調整片 289‧‧‧Adjustment
289a‧‧‧水平部 289a‧‧‧ horizontal department
289b‧‧‧上升部 289b‧‧‧Rising Department
30‧‧‧針板 30‧‧‧ needle board
31‧‧‧針孔 31‧‧‧ pinhole
第1圖是現有縫紉機針線切斷裝置的分解圖；第2圖是本發明上剪線機構安裝於縫紉機車頭的示意圖；第3圖是第2圖安裝上剪線機構的正視圖；第4圖是本發明上剪線機構的立體圖；第5圖是本發明上剪線機構局部拆解為驅動裝置、移動連桿組以及剪線連桿組的分解圖；第6圖是本發明上剪線機構局部拆解為驅動裝置、移動連桿組以及推抵連桿組的分解圖；第7A圖至第7C圖是本發明推抵裝置帶動移動連桿組與剪線連桿組之間產生偏擺的俯視圖；第8圖是本發明移動連桿組與剪線連桿組之間進行水平X軸向位移的正視圖；第9A圖及第9B圖是本發明上剪線刀組受到移動連桿組與剪線連桿組作用進而展開刀刃的示意圖；第10圖是本發明限位裝置安裝於移動連桿組下方的正視示意圖；第11圖是本發明驅動裝置、移動連桿組與限位裝置之間的分解圖；第12A圖是本發明凸輪位在中立待機位置時移動連桿組與限位裝置配合的頂視圖；第12B圖是第12A圖限位裝置的側視圖；第12C圖是第12B圖A部分區域的放大圖；第13A圖是本發明凸輪進行逆時針旋轉致使限位裝置作用的頂視圖；第13B圖是第13A圖限位裝置的側視圖；第14圖是本發明於限位裝置作用下凸輪回歸中立位置的頂 視圖；第15A圖是本發明於限位裝置作用下凸輪進行順時針旋轉的頂視圖；第15B圖是第15A圖限位裝置的側視圖；第15C圖是第15B圖B部分區域的放大圖；第16A圖是本發明上剪線刀組於凸輪位在中立待機位置的頂視圖；第16B圖是本發明上剪線刀組於凸輪進行逆時針旋轉未達極限位置的頂視圖；第16C圖是本發明上剪線刀組於凸輪進行逆時針旋轉至極限位置的頂視圖；第16D圖是本發明上剪線刀組於凸輪進行順時針旋轉未達極限位置的頂視圖；以及第16E圖是本發明上剪線刀組於凸輪進行順時針旋轉至極限位置的頂視圖。 1 is an exploded view of a conventional sewing machine needle thread cutting device; FIG. 2 is a schematic view showing the upper thread cutting mechanism of the present invention attached to a sewing machine head; FIG. 3 is a front view of the second thread cutting mechanism of FIG. 2; Is a perspective view of the upper thread trimming mechanism of the present invention; FIG. 5 is an exploded view of the upper thread trimming mechanism of the present invention partially disassembled into a driving device, a moving link group, and a trimming link group; and FIG. 6 is an upper trimming line of the present invention; The mechanism is partially disassembled into an exploded view of the driving device, the moving connecting rod group and the pushing link group; the 7A to 7C are the biasing device between the moving link group and the trimming link group. A top view of the pendulum; Figure 8 is a front view of the horizontal X-axis displacement between the moving link set and the trimming link set of the present invention; Figures 9A and 9B show the upper wire cutter set of the present invention being moved by the mobile link FIG. 10 is a schematic front view showing the position limiting device of the present invention installed under the moving link set; FIG. 11 is a front view showing the driving device and the moving link set of the present invention; An exploded view between bit devices; Figure 12A is a cam position of the present invention The top view of the moving link set and the limiting device in the neutral standby position; the 12B is a side view of the limiting device of FIG. 12A; the 12C is an enlarged view of the portion of the portion AA of FIG. 12B; A top view of the invention in which the cam is rotated counterclockwise to cause the position limiting device; FIG. 13B is a side view of the position limiting device of FIG. 13A; and FIG. 14 is a top view of the cam returning neutral position of the present invention under the action of the limiting device Figure 15A is a top view of the cam in the clockwise rotation of the cam under the action of the limiting device; Figure 15B is a side view of the limiting device of Figure 15A; and Figure 15C is an enlarged view of a portion of the portion of Figure 15B Figure 16A is a top view of the upper wire cutter set of the present invention in a neutral standby position of the cam position; Figure 16B is a top view of the upper wire cutter set of the present invention in a counterclockwise rotation of the cam to a limit position; Figure 10 is a top plan view of the upper wire cutter set of the present invention rotated counterclockwise to the extreme position of the cam; Figure 16D is a top view of the upper wire cutter set of the present invention in a clockwise rotation of the cam to the extreme position; and the 16E The figure is a top view of the upper wire cutter set of the present invention rotated clockwise to the extreme position of the cam.
茲為便於更進一步對本發明之構造、使用及其特徵有更深一層明確、詳實的認識與瞭解，爰舉出較佳實施例，配合圖式詳細說明如下：首先，請參閱第2圖至第4圖所示，本發明縫紉機1的上剪線機構2主要是安裝於一車頭10的背面位置，包含：一驅動裝置20、一移動連桿組21、一上剪線刀組22、一推抵連桿組23、一剪線連桿組24五部分，其中，上述驅動裝置20提供時序動作的驅動源；上述移動連桿組21、推抵連桿組23及剪線連桿組24三者皆受上述驅動裝置20驅動；而上述上剪線刀組22安裝於上述移動連桿組21上，並位在一針板30的針孔31上方進行縫線剪裁動作，而縫線剪裁動作主要是在針孔31附近進行水平的x軸與y軸方向的移位。 For a more detailed and detailed understanding and understanding of the structure, the use and the features of the present invention, the preferred embodiment will be described in detail with reference to the drawings as follows: First, please refer to FIG. 2 to FIG. As shown in the figure, the upper thread trimming mechanism 2 of the sewing machine 1 of the present invention is mainly mounted on the back side of a front end 10, and includes: a driving device 20, a moving link group 21, an upper thread cutter group 22, and a push-up The connecting rod set 23 and the five sets of the trimming link set 24, wherein the driving device 20 provides a driving source for the sequential operation; the moving link set 21, the push-to-link set 23 and the trimming link set 24 The upper wire cutter group 22 is mounted on the moving link group 21, and is positioned above the pinhole 31 of the needle plate 30 for suture cutting operation, and the suture cutting action is mainly The horizontal x-axis and y-axis shifts are performed in the vicinity of the pinhole 31.
請參閱第5圖及第6圖所示，本發明驅動裝置20設有一驅動馬達201，並由上述驅動馬達201同時帶動一第一凸輪202以及一第二凸輪203進行往復式旋轉；其中，上述第一凸輪202上設有第一槽軌204以及一第二槽軌205，上述第一槽軌204內部安裝有一第一滾輪206與上述移動連桿組21相互樞設，而上述第二槽軌205內部安裝有一第二滾輪207與上述推抵連桿組23互相樞設；此外，上述第二凸輪203外部接觸一與上述剪線連桿組24連接的第三滾輪208。此外，上述驅動馬達201的上下兩相對側分別設有兩相互平行的導引桿209，作為上述移動連桿組21與推抵連桿組23的平移導軌。 Referring to FIG. 5 and FIG. 6, the driving device 20 of the present invention is provided with a driving motor 201, and the driving motor 201 simultaneously drives a first cam 202 and a second cam 203 to reciprocally rotate; The first groove 202 is provided with a first groove track 204 and a second groove track 205. The first groove track 204 is internally mounted with a first roller 206 and the moving link set 21, and the second groove track is disposed. A second roller 207 is internally mounted to the push-to-reach link set 23; and the second cam 203 is externally contacted by a third roller 208 connected to the trimming link set 24. In addition, two upper and lower opposite guiding sides of the driving motor 201 are respectively provided with two parallel guiding rods 209 as the translational guide rails of the moving link group 21 and the pushing link group 23.
本發明移動連桿組21設有一移動桿211以及一與移動桿211樞接的剪刀桿212，上述移動桿211具有配合上述導引桿209的套筒213及一套設於上述第一滾輪206的輪軸214，並受上述第一槽軌204帶動產生水平的X軸方向位移，且上述移動桿211於端部位置形成一偏移支點215。 The moving link set 21 of the present invention is provided with a moving rod 211 and a scissor bar 212 pivotally connected to the moving rod 211. The moving rod 211 has a sleeve 213 for engaging the guiding rod 209 and a set of the first roller 206. The axle 214 is driven by the first groove rail 204 to generate a horizontal X-axis displacement, and the moving rod 211 forms an offset fulcrum 215 at the end position.
此外，上述剪刀桿212一端安裝於上述移動桿211的偏移支點215，另一端則安裝上述上剪線刀組22，使上述上剪線刀組22可繞著偏移支點215擺動產生水平的Y軸方向位移，且上述剪刀桿212於對應上述推抵連桿組23位置安裝一板凸輪216，上述板凸輪216具高度位差的階梯狀結構。除此之外，上述剪刀桿212與上述縫紉機1的車頭10之間掛設有一彈性件217，使上述剪刀桿212具有向Y軸方向歸位的彈力。 In addition, one end of the scissor bar 212 is mounted on the offset fulcrum 215 of the moving rod 211, and the other end is mounted with the upper string cutter group 22, so that the upper string cutter group 22 can swing around the offset fulcrum 215 to generate a horizontal level. The Y-axis direction is displaced, and the scissor bar 212 is mounted with a plate cam 216 at a position corresponding to the push-pushing link group 23, and the plate cam 216 has a stepped structure with a height difference. In addition to this, an elastic member 217 is hung between the scissors rod 212 and the front end 10 of the sewing machine 1, so that the scissors rod 212 has an elastic force that is returned to the Y-axis direction.
本發明推抵連桿組23設有一L型桿231，上述L型桿231具有配合上述導引桿209的套筒232及一輪軸233套設上述第二滾輪207，並受上述第二槽軌205帶動同樣產生水平的X軸方向位移。此外，上述L型桿231的端部位置設有一可與上述板凸輪216接觸的滾子234。 The push rod set 23 of the present invention is provided with an L-shaped rod 231 having a sleeve 232 engaging with the guiding rod 209 and a wheel axle 233 for arranging the second roller 207, and is received by the second groove rail The 205 drive also produces horizontal X-axis displacement. Further, the end portion of the L-shaped rod 231 is provided with a roller 234 which is in contact with the plate cam 216.
本發明透過上述導引桿209與套筒213、232的套接配合，共同於上述驅動裝置20與上述移動連桿組21、推抵連桿組23之間形成一導引裝置25，由上述導引桿209的軸心方向形成一導引路徑，當上述驅動裝置20同步帶動上述移動連桿組21與上述推抵連桿組23，上述移動連桿組21與推抵連桿組23之間將在相同的X軸方向產生平行的相對位移。 The present invention forms a guiding device 25 between the driving device 20 and the moving link group 21 and the pushing link group 23 through the sleeved engagement of the guiding rod 209 and the sleeves 213 and 232. The guiding direction of the guiding rod 209 forms a guiding path, and when the driving device 20 synchronously drives the moving link group 21 and the pushing link group 23, the moving link group 21 and the pushing link group 23 The parallel displacement will occur in the same X-axis direction.
請參閱第7A圖至第7C圖所示，再者，本發明透過上述滾子234與板凸輪216的接觸配合，共同於上述移動連桿組21與推抵連桿組23之間形成一推抵裝置26，當上述驅動裝置20同步帶動上述移動連桿組21與上述推抵連桿組23，上述移動連桿組21與推抵連桿組23之間將產生一沿X軸方向的平行位移。 Referring to FIGS. 7A to 7C , the present invention forms a push between the moving link set 21 and the push-to-reach link set 23 through the contact fit of the roller 234 and the plate cam 216 . The abutting device 26, when the driving device 20 synchronously drives the moving link group 21 and the pushing link group 23, the moving link group 21 and the pushing link group 23 will generate a parallel along the X-axis direction. Displacement.
惟上述移動連桿組21與推抵連桿組23之間的位移量不同，將致使上述滾子234因抵觸上述板凸輪216的不同位置，進而使上述剪刀桿212相對於上述推抵連桿組23產生一Y軸方向的反向偏移。 However, the displacement amount between the moving link group 21 and the pushing link group 23 is different, so that the roller 234 is caused to interfere with the different positions of the plate cam 216, so that the scissors bar 212 is pushed against the push rod. Group 23 produces a reverse offset in the Y-axis direction.
請再參閱第5圖所示，本發明剪線連桿組24具有一擺動桿241以及一隨動桿242，上述擺動桿241一端樞設於上述移動桿211的頂部，另一端與上述隨動桿242相互樞設，而上述擺動桿241另具有一凸軸243套設於上述第二凸輪203外部的第三滾輪208，又上述隨動桿242設有一固定銷244與上述剪刀桿212互相連接，且上述固定銷244透過組裝一彈簧245，提供上述隨動桿242朝向X軸方向歸位的彈力。 Referring to FIG. 5 again, the trimming link set 24 of the present invention has a swinging rod 241 and a follower rod 242. One end of the swinging rod 241 is pivotally disposed on the top of the moving rod 211, and the other end is followed by the following The swinging rod 241 has a third roller 208 which is disposed on the outside of the second cam 203. The follower lever 242 is provided with a fixing pin 244 and the scissors rod 212 are connected to each other. And the fixing pin 244 is assembled to a spring 245 to provide the elastic force of the follower lever 242 to return to the X-axis direction.
於圖式一較佳實施例中，上述隨動桿242具有一限位槽246供上述固定銷244穿設，使上述固定銷244同時具有限制上述隨動桿242移動路徑的功能。 In the preferred embodiment of the present invention, the follower lever 242 has a limiting slot 246 for the fixing pin 244 to pass through, so that the fixing pin 244 has a function of restricting the moving path of the follower lever 242 at the same time.
請參閱第8圖所示，本發明透過上述固定銷 244、彈簧245以及限位槽246配合形成一限制裝置27，並於上述移動連桿組21與剪線連桿組24之間產生一導引路徑。藉此，當上述驅動裝置20的第一凸輪202與第二凸輪203同步帶動上述移動連桿組21與上述剪線連桿組24，上述移動連桿組21的剪刀桿212與剪線連桿組24的隨動桿242之間將產生一沿X軸方向的平行相對位移。 Please refer to FIG. 8 , the present invention passes through the above fixed pin 244, the spring 245 and the limiting slot 246 cooperate to form a limiting device 27, and a guiding path is generated between the moving link set 21 and the trimming link set 24. Thereby, when the first cam 202 and the second cam 203 of the driving device 20 synchronously drive the moving link group 21 and the trimming link group 24, the scissors rod 212 and the trimming link of the moving link group 21 A parallel relative displacement in the X-axis direction will occur between the follower bars 242 of the set 24.
請參閱第9A圖及第9B圖所示，本發明上剪線刀組22具有一安裝於上述剪刀桿212的固定片221以及一安裝於上述隨動桿242的連接片222，其中，上述固定片221延伸出一形成固定刀刃的第一刀刃223，並由上述第一刀刃223樞接一共同形成刀刃口的第二刀刃224以及一壓線片225，上述第二刀刃224作為一活動刀刃，並由一端延伸出一擋片226；另外，上述連接片222樞設有一介於上述擋片226與固定片221之間的擺動板227，而上述擺動板227與上述連接片222之間設有一扭簧228可形成擺動板227歸位的作用，而上述擺動板227設有一推動上述擋片226的推動輪229，以及一帶動擺動板227偏轉的斜面220，由上述斜面220與固定片221的邊緣相互作用，可推動第二刀刃224旋轉至打開狀態。 Referring to FIGS. 9A and 9B, the upper wire cutter set 22 of the present invention has a fixing piece 221 attached to the scissors rod 212 and a connecting piece 222 attached to the follower rod 242, wherein the fixing is performed. The first edge 223 of the fixed blade is extended by the first blade 223, and the second blade 224 and the pressure wire 225 are formed by the first blade 223. The second blade 224 serves as a movable blade. A blocking piece 226 is extended from one end. The connecting piece 222 is pivotally provided with a swinging plate 227 between the blocking piece 226 and the fixing piece 221, and a swinging plate 227 is disposed between the connecting piece 222 and the connecting piece 222. The torsion spring 228 can form a swaying plate 227, and the oscillating plate 227 is provided with a pushing wheel 229 for pushing the blocking piece 226, and a slope 220 for deflecting the oscillating plate 227. The inclined surface 220 and the fixing piece 221 are The edge interaction can push the second cutting edge 224 to the open state.
請參閱第10圖及第11圖所示，本發明上剪線機構2進一步包含一限位裝置28，上述限位裝置28具有一導引軌道組281、一啟動桿282以及一扭簧283，上述導引軌道組281安裝於相對車頭10的固定位置，具有兩互相形成高低位差的第一導引軌道284以及第二導引軌道285，上述啟動桿282一端透過一連接件286安裝於上述移動連桿組21的偏移支點215，另一端則形成一位於上述第一導引軌道284以及第二導引軌道285上方的卡勾282a，而上述扭簧283一端卡抵於上述連接件286，另一端卡抵於上述啟動桿282上方，並驅使上述啟動桿282的卡勾282a向下偏擺緊靠上述第一導 引軌道284與第二導引軌道285的其中之一。 Referring to FIG. 10 and FIG. 11 , the upper thread trimming mechanism 2 further includes a limiting device 28 . The limiting device 28 has a guiding track set 281 , a starting rod 282 and a torsion spring 283 . The guiding track set 281 is mounted on a fixed position relative to the front head 10, and has two first guiding rails 284 and a second guiding rail 285 which form a height difference, and one end of the starting rod 282 is mounted on the above through a connecting member 286. The offset fulcrum 215 of the moving link set 21 is formed, and the other end forms a hook 282a located above the first guiding track 284 and the second guiding track 285, and one end of the torsion spring 283 is engaged with the connecting member 286. The other end of the card is above the starting lever 282, and drives the hook 282a of the starting lever 282 to be biased downwardly to the first guide. One of the lead rail 284 and the second guide rail 285.
於圖式一較佳實施例中，本發明導引軌道組281設有一固定片287，且上述固定片287開設一通孔288形成上述第一導引軌道284，而上述固定片287一側另鎖固一平行排列的調整片289，由上述調整片289的頂部輪廓形成上述第二導引軌道285。其中上述調整片289具有一高度位置低於上述通孔288的水平部289a，並由上述水平部289a延伸至端部形成一高度逐漸增加的上升部289b。 In the preferred embodiment of the present invention, the guide rail group 281 of the present invention is provided with a fixing piece 287, and the fixing piece 287 defines a through hole 288 to form the first guiding rail 284, and the fixing piece 287 is locked on one side. The second alignment rail 285 is formed by the top contour of the adjustment piece 289. The adjusting piece 289 has a horizontal portion 289a whose height position is lower than the through hole 288, and extends from the horizontal portion 289a to the end portion to form a rising portion 289b whose height is gradually increased.
請參閱第12A圖至第12C圖所示，當上述驅動裝置20的第一凸輪202位在中立待機位置，上述啟動桿282的卡勾282a受到上述扭簧283作用卡抵於上述第一導引軌道284中。 Referring to FIGS. 12A to 12C, when the first cam 202 of the driving device 20 is in the neutral standby position, the hook 282a of the starting lever 282 is engaged by the torsion spring 283 to the first guiding. In track 284.
請參閱第13A圖及第13B圖當上述第一凸輪202逆時針旋轉時，上述移動連桿組21的板凸輪216將受到上述推抵連桿組23的滾子234作用偏擺，致使上述卡勾282a由上述通孔288向外移動，由於上述啟動桿282持續受到上述扭簧283作用，因此，當上述卡勾282a偏擺出上述通孔288時，將會向下位移與上述調整片289的水平部289a頂部接觸。 Referring to FIGS. 13A and 13B, when the first cam 202 rotates counterclockwise, the plate cam 216 of the moving link set 21 will be biased by the roller 234 of the push link set 23, causing the card to be swayed. The hook 282a is moved outwardly from the through hole 288. Since the starting lever 282 is continuously subjected to the torsion spring 283, when the hook 282a is biased out of the through hole 288, it will be displaced downward and the adjusting piece 289 The horizontal portion 289a is in contact with the top.
請參閱第14圖所示，此時，由於上述卡勾282a端點已頂住固定片287的邊緣，因此，當上述第一凸輪202回歸至待機位置時，上述移動連桿組21仍保持偏擺的狀態，上述滾子234將暫時性地不再與上述板凸輪216接觸。 Referring to FIG. 14, at this time, since the end of the hook 282a has been pressed against the edge of the fixing piece 287, when the first cam 202 returns to the standby position, the moving link group 21 remains biased. In the state of the pendulum, the roller 234 will temporarily no longer come into contact with the plate cam 216.
請參閱第15A圖及第15B圖所示，隨後，當上述第一凸輪202回歸待機位置後進行順時鐘旋轉，致使上述上剪線刀組22沿X軸移動到一剪線位置，上述啟動桿282將受帶動產生一朝向上述上升部289b方向位移，上述卡勾282a在上述上升部289b移動時，上述啟動桿282將逐漸向上抬升，最後上述啟動桿282的端面將高於上述第一導引軌道284高度(參閱第15C圖)。 Referring to FIGS. 15A and 15B, the first cam 202 is rotated clockwise after returning to the standby position, so that the upper thread cutter group 22 is moved along the X axis to a trim position. The 282 is displaced toward the rising portion 289b, and when the hook 282a moves in the rising portion 289b, the starting lever 282 is gradually raised upward, and finally the end surface of the starting lever 282 is higher than the first guiding. Track 284 height (see Figure 15C).
請參閱第16A圖所示，當上述第一凸輪202順時鐘旋轉到極限位置時，上述卡勾282a越過上述第一導引軌道284高度，上述剪刀桿212將受到上述彈性件217作用產生一回擺動作，使上述第二刀刃224的擋片226推抵到壓布器上的擋板(未圖示)，並使上述上剪線刀組22的第一刀刃223與第二刀刃224閉合，從而完成剪線動作。此時上述驅動裝置20的第一凸輪202與第二凸輪203再返回中立待機位置，使上剪線刀組22位於上述針孔31旁的位置，同時上述滾子234再次接觸到上述板凸輪216。 Referring to FIG. 16A, when the first cam 202 is rotated clockwise to the extreme position, the hook 282a passes over the height of the first guiding rail 284, and the scissors rod 212 is subjected to the elastic member 217 to generate a back. The swinging motion causes the blocking piece 226 of the second cutting edge 224 to push against the baffle (not shown) on the presser, and closes the first cutting edge 223 and the second cutting edge 224 of the upper thread cutting blade set 22, Thereby completing the trimming action. At this time, the first cam 202 and the second cam 203 of the driving device 20 return to the neutral standby position, so that the upper thread cutter group 22 is located beside the pinhole 31, and the roller 234 contacts the plate cam 216 again. .
再請參閱第16B圖至第16C圖所示，當上述驅動裝置20的第一凸輪202與第二凸輪203於中立位置進行逆時針旋轉時，上述上剪線刀組22將受上述推抵連桿組23帶動朝向Y軸的反方向偏擺，而上述連接片222將受上述剪線連桿組24帶動朝向X軸的反方向移動，此時上述擺動板227將因斜面220受到上述固定片221的推動，朝向Y軸方向偏擺，同時，上述擋片226受到上述推動輪229的同步推動，進而使上述第一刀刃223與第二刀刃224之間處於形成一展開狀態。 Referring to FIGS. 16B to 16C again, when the first cam 202 and the second cam 203 of the driving device 20 are rotated counterclockwise at the neutral position, the upper thread cutter group 22 will be pushed by the above. The rod group 23 is biased in the opposite direction to the Y-axis, and the connecting piece 222 is moved by the thread-cutting link group 24 in the opposite direction of the X-axis. At this time, the swinging plate 227 is subjected to the fixing piece by the inclined surface 220. The pushing of the 221 is yawed toward the Y-axis direction. At the same time, the blocking piece 226 is synchronously pushed by the pushing wheel 229, so that the first cutting edge 223 and the second cutting edge 224 are in an unfolded state.
此時，上述限位裝置28的啟動桿282將與上述導引軌道組281形成卡擎的作用，致使上述第一凸輪202與第二凸輪203於返回中立位置時，上述上剪線刀組22仍保持一展開狀態，而上述移動連桿組21與剪線連桿組24仍共同保持一偏擺狀態。 At this time, the starting lever 282 of the limiting device 28 will form a card with the guiding track group 281, so that when the first cam 202 and the second cam 203 are returned to the neutral position, the upper wire cutter group 22 Still maintaining an unfolded state, the moving link set 21 and the trimming link set 24 still maintain a yaw state together.
請參閱第16D圖所示，之後當上述驅動裝置20的第一凸輪202與第二凸輪203於中立位置進行順時針旋轉時，上述固定片221將受上述移動連桿組21帶動朝向X軸方向位移，致使上述第一刀刃223與第二刀刃224於展開狀態下移動到針孔31旁的剪線位置。 Referring to FIG. 16D, when the first cam 202 and the second cam 203 of the driving device 20 are rotated clockwise at the neutral position, the fixing piece 221 is driven by the moving link group 21 toward the X-axis direction. The displacement causes the first blade 223 and the second blade 224 to move to the trimming position beside the pinhole 31 in the unfolded state.
請參閱第16E圖所示，後續當上述啟動桿282 的端面越過上述第一導引軌道284高度時，上述剪刀桿212將朝向Y軸方向偏擺致使第一刀刃223與第二刀刃224移動通過針孔31上方位置，此時，上述擋片226將受到一擋板(圖未示)推抵使得上述第二刀刃224相對樞轉閉合完成一剪切動作。 Please refer to FIG. 16E, followed by the above-mentioned starting lever 282. When the end surface of the first guide rail 284 is over the height of the first guide rail 284, the scissors rod 212 will be biased toward the Y-axis direction, so that the first blade 223 and the second blade 224 move through the upper position of the pinhole 31. At this time, the flap 226 will Pressing a baffle (not shown) causes the second blade 224 to pivotally close to complete a shearing action.
最後，當上述第一凸輪202與第二凸輪203再度返回至中立位置時，本發明上剪線機構2始確實完成一次剪線周期(請參第16A圖)。 Finally, when the first cam 202 and the second cam 203 are returned to the neutral position again, the upper thread trimming mechanism 2 of the present invention does complete a trimming cycle (see Fig. 16A).
以上所舉實施例，僅用為方便說明本發明並非加以限制，在不離本發明精神範疇，熟悉此一行業技藝人士依本發明申請專利範圍及發明說明所作之各種簡易變形與修飾，均仍應含括於以下申請專利範圍中。 The above embodiments are intended to be illustrative only, and are not intended to limit the scope of the present invention. It is included in the scope of the following patent application.
2‧‧‧上剪線機構 2‧‧‧Upper thread cutting mechanism
20‧‧‧驅動裝置 20‧‧‧ drive
201‧‧‧驅動馬達 201‧‧‧Drive motor
202‧‧‧第一凸輪 202‧‧‧First Cam
203‧‧‧第二凸輪 203‧‧‧second cam
209‧‧‧導引桿 209‧‧‧ Guide rod
21‧‧‧移動連桿組 21‧‧‧Mobile Link Set
211‧‧‧移動桿 211‧‧‧ moving rod
212‧‧‧剪刀桿 212‧‧‧Scissors
217‧‧‧彈性件 217‧‧‧Flexible parts
22‧‧‧上剪線刀組 22‧‧‧Upper wire cutter
221‧‧‧固定片 221‧‧‧Fixed tablets
222‧‧‧連接片 222‧‧‧Connecting piece
223‧‧‧第一刀刃 223‧‧‧first blade
224‧‧‧第二刀刃 224‧‧‧second blade
225‧‧‧壓線片 225‧‧‧Crimping film
23‧‧‧推抵連桿組 23‧‧‧Pushing the connecting rod set
231‧‧‧L型桿 231‧‧‧L-bar
24‧‧‧剪線連桿組 24‧‧‧Threaded connecting rod set
241‧‧‧擺動桿 241‧‧‧Swing rod
242‧‧‧隨動桿 242‧‧‧Following rod
28‧‧‧限位裝置 28‧‧‧Limiting device
281‧‧‧導引軌道組 281‧‧‧Guided track group
282‧‧‧啟動桿 282‧‧‧Starting lever
283‧‧‧扭簧 283‧‧‧torsion spring
30‧‧‧針板 30‧‧‧ needle board
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103112443A TWI550157B (en) | 2014-04-03 | 2014-04-03 | Sewing machine on the thread trimming mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103112443A TWI550157B (en) | 2014-04-03 | 2014-04-03 | Sewing machine on the thread trimming mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201538819A TW201538819A (en) | 2015-10-16 |
| TWI550157B true TWI550157B (en) | 2016-09-21 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103112443A TWI550157B (en) | 2014-04-03 | 2014-04-03 | Sewing machine on the thread trimming mechanism |
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| Country | Link |
|---|---|
| TW (1) | TWI550157B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440312A (en) * | 2019-01-10 | 2019-03-08 | 杰克缝纫机股份有限公司 | The control method of trimming and presser foot lifting device on a kind of sewing machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118466B (en) * | 2016-11-29 | 2023-07-25 | 拓卡奔马机电科技有限公司 | Go up trimming actuating mechanism and buttonholing machine |
| TWI615522B (en) * | 2016-11-29 | 2018-02-21 | Knife cutter cutting device for sewing machine |
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| JP2004141241A (en) * | 2002-10-22 | 2004-05-20 | Juki Corp | Thread-holding mechanism for sewing machine |
| TW200912076A (en) * | 2007-09-11 | 2009-03-16 | Kaulin Mfg Co Ltd | Cutting-off device of threads in sewing machine |
| CN202202121U (en) * | 2011-08-20 | 2012-04-25 | 宁波舒普机电科技有限公司 | Upper thread trimming device |
| CN202227104U (en) * | 2011-09-24 | 2012-05-23 | 罗君 | Trimming driving structure for sewing machine |
| TWM482596U (en) * | 2014-04-03 | 2014-07-21 | Chee Siang Ind Co Ltd | Line cutting mechanism of sewing machine |
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|---|---|---|---|---|
| JP2004141241A (en) * | 2002-10-22 | 2004-05-20 | Juki Corp | Thread-holding mechanism for sewing machine |
| TW200912076A (en) * | 2007-09-11 | 2009-03-16 | Kaulin Mfg Co Ltd | Cutting-off device of threads in sewing machine |
| CN202202121U (en) * | 2011-08-20 | 2012-04-25 | 宁波舒普机电科技有限公司 | Upper thread trimming device |
| CN202227104U (en) * | 2011-09-24 | 2012-05-23 | 罗君 | Trimming driving structure for sewing machine |
| TWM482596U (en) * | 2014-04-03 | 2014-07-21 | Chee Siang Ind Co Ltd | Line cutting mechanism of sewing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440312A (en) * | 2019-01-10 | 2019-03-08 | 杰克缝纫机股份有限公司 | The control method of trimming and presser foot lifting device on a kind of sewing machine |
| CN109440312B (en) * | 2019-01-10 | 2020-09-29 | 杰克缝纫机股份有限公司 | Control method of thread trimming and presser foot lifting device on sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201538819A (en) | 2015-10-16 |
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