会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明专利
    • FR2546191B1
    • 1988-04-29
    • FR8407897
    • 1984-05-21
    • SCHLAFHORST & CO W
    • WASSENHOVEN HEINZ-GEORGDERICHS JOSEF
    • D01H4/46D01H4/26D01H4/52D01H1/135D01H15/02
    • Method for starting the operation of a friction spinning machine, including friction surfaces movable in opposing directions for forming a spinning wedge, a device for supplying fiber to the spinning wedge, a thread withdrawal device, at least one suction device acting on the spinning wedge during the spinning operation, a suction tube disposed at an end of the machine opposite the thread withdrawal device, and a suction air source connectible to the suction device and to the suction tube, which includes: stopping the fiber supply and the motion of the friction surfaces; disconnecting the suction device from the suction source; supplying suction air from the suction source through the suction tube at the spinning wedge for inserting a thread into the spinning wedge; keeping the thread in a tensioned condition in vicinity of the spinning wedge; operating the suction device with a given suction power; moving the friction surfaces around the thread with a given speed to remove the twist of the thread at a given location; breaking the thread with tension at the given location severing a piece of thread; sucking the severed piece of thread into the suction tube; resuming the fiber supply at a given rate; moving the friction surfaces in opposing directions at a pre-determined speed greater than the given speed; and resuming a normal state of the machine for the spinning operation by supplying the fiber at a rate greater than the given rate, increasing the suction power of the suction device beyond the given suction power, increasing the speed of motion of the friction surfaces to a speed above the predetermined speed, and increasing the thread withdrawal speed.