M416640 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種皮件縫紉機之縫製方向控制結 構，尤其係方便而穩定的控制縫紉機的正縫與倒縫之結構， 藉以達到傳動確實，以及控制穩定之目的者。 【先前技術】 按傳統之皮件_機’由於縫製上之需要，常需要前進縫製 或倒退縫製的車製加X作業，即業界俗稱之正縫與倒縫的作業， 而該縫幼機多半仙單-的動力雜合控制結構動力轉向之 結構，以達成正縫與倒縫之需求者；般的控制結構，多半係 以電子零件配合電_控制方式，進行_機送布結構正向或逆 向動作換向的作業’如狀方式常造摘力源之動力軸必須正向 或逆向轉動，在方向轉換的過財，常會有遲滯或電子零件在瞬 間逆電㈣下造成的損害；因此有業者，為使動力源保持在同一方 向上轉動’而控制換向的方式則是以動力源之動力軸上之伞形傳 動輪，於不_向需求時靠向不同之從動輪，該從動輪再將不同 方向的動力傳至送布祕，使料輪產生驗正_及後退 的送布作業，如此結構常會造成動力源、上之傳動輪與從動輪相 互靠近喃合時的碰撞損害，由於該傳動輪係固定於動力源_ 上’抽害時，要更換必須將該動力源拆下，有其不便 且當該動力源移動時，由於動力源的體積大移動之林 易產生晃__ ’或者亦有料之結構_觸力源保持不 〇()4〇 該兩動力件24、25相對於兩滑件23、26嚙部231、261之 端面上設有配合單向帶動之齒狀嚙部24卜251，以相互單向 帶動，而該兩動力件24、25外徑處另設有與傳動輪17〇嚙 合之傳動部242 ' 252，使該兩動力件24、25保持與該傳動 輪〇〇嚙合且相互逆向轉動的動力傳輸形態。 該移動裝置30係具有一長方形塊狀之滑塊31並於該滑 塊3丨之底部兩端處平行伸設有掣耳311，並於掣耳311底部 彀有一半凹形之掣部312，以分別卡制入該兩滑件M、％ 之卡制部232、262内，並使該兩滑件23、26係保持一與相 對之該動力件24、25卡制帶動，而另—滑件23、26與另一 動力件25、24分離不帶動之形態，該滑塊31於平行主動軸 21處另設有一穿孔313以供一圓桿狀之定軸32滑套穿過， 該定軸32端部固定於該凸部14處，另於該凸部14處之定 上方另》又有一标狀之止轴33，以配合一由該滑塊31 頂面端部凸伸短牆中央處之半凹形導部314卡制導引，使該 滑塊31在不轉動之形態下平移者；而該滑塊”頂面中央處 另。又有凸柱狀之樞動柱315，以為該切換裝置40帶動切 換，而該定軸32上另於兩端部處設有螺帽形態之止件34以 供該滑塊31左右端行程的限制。 該切換裝置40具有一板狀結構彎折而成的擺臂41，該 擺臂41 一端設有凹弧形之樞卡部410,以卡制該樞動柱314 以帶動該移動裝置30之滑塊31與兩滑件23、26同時沿主 9M416640 V. New description: [New technical field] This creation is about the sewing direction control structure of a leather sewing machine. In particular, it is convenient and stable to control the structure of the sewing machine and the reverse seam, so as to achieve the transmission. And those who control the purpose of stability. [Prior Art] According to the traditional leather goods_machine's sewing machine, it is often necessary to advance or reverse the sewing machine and X work, which is commonly known as the seam and back seam in the industry, and most of the sewing machine Xiandan-the power hybrid control structure power steering structure to achieve the needs of the positive and reverse seams; the general control structure, mostly with electronic parts in conjunction with the electric_control mode, the machine feed structure is positive or The operation of the reverse action reversal is as follows: the power shaft of the source of the force must be rotated in the forward or reverse direction. In the direction of the conversion, there is often a delay or damage caused by the electronic component in the instantaneous reverse (4); therefore, there are operators. In order to keep the power source rotating in the same direction, the way to control the commutation is to use the umbrella-shaped transmission wheel on the power shaft of the power source, and to the different driven wheels when the demand is not required, the driven wheel The power in different directions is transmitted to the cloth delivery secret, so that the material wheel produces a positive inspection _ and a backward feeding operation, and such a structure often causes collision damage when the power source, the upper transmission wheel and the driven wheel are close to each other. When the transmission wheel train is fixed on the power source _ on the 'damage', the power source must be removed when it is replaced, which is inconvenient and when the power source moves, the forest is easy to sway due to the large volume of the power source. _ 'Or the structure of the material _ the source of the force is not maintained () 4 〇 the two power members 24, 25 with respect to the two sliders 23, 26 end faces of the teeth 231, 261 are provided with a unidirectionally driven tooth The locating portions 24 251 are unidirectionally driven, and the outer diameters of the two power members 24 and 25 are additionally provided with a transmission portion 242 252 that meshes with the transmission wheel 17 , to keep the two power members 24 and 25 A power transmission mode in which the drive rims mesh and rotate against each other. The moving device 30 has a rectangular block-shaped slider 31, and a lug 311 is arranged in parallel at two ends of the bottom of the slider 3, and a concave portion 312 is formed at the bottom of the lug 311. They are respectively inserted into the locking portions 232, 262 of the two sliding members M, %, and the two sliding members 23, 26 are held and locked with the opposing power members 24, 25, and the other sliding The members 23 and 26 are separated from the other power members 25 and 24, and the slider 31 is further provided with a through hole 313 at a parallel driving shaft 21 for a round rod-shaped fixed shaft 32 to pass through. The end portion of the 32 portion is fixed at the convex portion 14 and further has a target shaft 33 at a position above the convex portion 14 to fit a central portion of the short wall protruding from the top end portion of the slider 31. The semi-concave guide 314 is clamped and guided to rotate the slider 31 in a non-rotating manner; and the slider has a convex column-shaped pivoting column 315 at the center of the top surface, which is The switching device 40 drives the switching, and the fixed shaft 32 is further provided with a nut-shaped stopper 34 at both ends for limiting the stroke of the left and right ends of the slider 31. The switching device 40 has A swinging arm 41 is formed by bending a plate-like structure, and a pivoting portion 410 is disposed at one end of the swinging arm 41 to clamp the pivoting post 314 to drive the slider 31 and the two sliding members of the moving device 30. Pieces 23 and 26 are along the main 9
4U =1轴向方向移動，爾41由針部端水平 下之套柱411，以樞套於一支架18頂部突出 柱181上’而支架18係固定於凸部14上 以此為_中心擺動，擺臂41下斜彎折後，再予= =延伸以㈣該支架18，並於f折處側歧有—直立之推邻 ，以供-電磁閥形態之控制件42電動控制突 所頂持，該控制件42水平橫向固定於該支架18上 擺臂41同一端之批制姓μ ' ^ j端之㈣件42下方水平設有—彈簧形態之彈性 ^ 43,該彈性元件43之兩端分別勾設於該擺臂^末端以 及該支架18上，以使該擺臂41末端保持彈性並使該推部化 確實頂制於該轴420端部。 請配合參㈣1至4圖所示，當該控制件42未動作時， 該擺臂41受彈性元件43拉引以支架18之套柱i8i為中心 擺動，使針部楊向左偏移至該滑塊31#於左側的止件 34停止，此時第一滑件23喃合第一動力件24,動力即可由 動力源17帶動之傳動輪17〇經該第—動力件24至第—滑件 23喷合轉動主動袖21至送布輪12，為第—方向之轉動，亦 可如第5、6圖所示’當該控制件42動作推出軸·頂移推 部化，使該擺臂41以支架18之套柱i8i為中心擺動至樞 卡部向右偏移至該滑塊31靠於右側的止件％停止此 時第二滑件26齡第二動力件25，動力即可由動力源Ο 帶動之傳動輪Π0經該第二動力㈣至第二滑件_4U =1 moves in the axial direction, and the arm 41 is pivoted on the top of the bracket 18 at the top of the bracket 18, and the bracket 18 is fixed on the convex portion 14 as a center swing. After the swing arm 41 is bent obliquely, the == extension is extended to (4) the bracket 18, and the side of the f-fold is erected adjacently, so that the control member 42 of the electromagnetic valve form is electrically controlled. The control member 42 is horizontally and horizontally fixed to the same end of the swing arm 41 at the same end of the bracket 18, and the second member 42 is disposed horizontally below the spring member 42. The elastic member 43 The ends are respectively hooked on the end of the swing arm and the bracket 18, so that the end of the swing arm 41 is kept elastic and the push portion is surely topped on the end of the shaft 420. When the control member 42 is not in operation, the swing arm 41 is pulled by the elastic member 43 to swing around the sleeve i8i of the bracket 18, so that the needle portion is shifted to the left to the left. The slider 31# stops on the left side of the stop member 34. At this time, the first slider 23 omits the first power member 24, and the power can be driven by the power source 17 to drive the transmission wheel 17 through the first power member 24 to the first slide. The member 23 sprays and rotates the active sleeve 21 to the feed roller 12, and rotates in the first direction. Alternatively, as shown in the fifth and sixth figures, when the control member 42 moves out, the shaft and the top movement are pushed to make the pendulum. The arm 41 swings around the sleeve i8i of the bracket 18 until the pivotal portion is offset to the right to the right side of the slider 31. The second sliding member 26 is at the second power member 25, and the power can be The power source Ο drives the driving wheel Π0 through the second power (four) to the second sliding member _