PRODUCTION OF SPUN YARN
    93.
    发明专利

    公开(公告)号:JPS58174633A

    公开(公告)日:1983-10-13

    申请号:JP5701982

    申请日:1982-04-06

    Abstract: PURPOSE:An endless belt is brought into contact with the peripheral surface of the spinning spindle and a fiber material which has been fed between the endless belt and the spindle is conveyed to permit the production of high-quality spun yarn from a wide variety of fiber materials. CONSTITUTION:The endless belt 5 is made to run at the same speed as that of the spindle 3 so that belt comes into contact with the spindle by more than 1/8 circumference of the spindle. A part of the fiber strand that is held between the contact surface 6 of the spindle 3 and the endless belt 5 fitted to the top roller 4 is drawn out and piled up with the previously pulled-out fibers partially, sucked into the yarn-guiding hole 7 and spun at a rate of one twisting per one spindle rotation, then taken out of the outtake 8 as a spun yarn Y.

    OPERATING METHOD OF APPARATUS FOR PREPARING BOUND SPUN YARN

    公开(公告)号:JPS58156034A

    公开(公告)日:1983-09-16

    申请号:JP19338182

    申请日:1982-11-05

    Abstract: PURPOSE:To make it possible to stop and restart an apparatus for preparing bound spun yarns without causing broken yarns in stopping the apparatus at one time, by stopping a drafting part, taking-off part and winding part at the same time, and stopping the operation of a false twisting part and a pneumatic part simultaneously with or after the stopping. CONSTITUTION:In stopping the respective spindles at one time in an apparatus for preparing bound spun yarns consisting of a drafting part 2 having rollers and aprons (2a), a pneumatic part 3 for sucking fibrous groups having a rubber pipe 4 and a pneumatic duct 5, a false twisting part 7, a taking-off part 11 and a winding part 12 without causing broken yarns, the function of a yarn breakage sensor 13 is first stopped, and the drafting part 2, taking-off part 11 and the winding part 12 are simultaneously stopped. The false twisting part 7 and the pneumatic part 3 are stopped simultaneously or after the stopping. The restarting operations can be carried out in the reverse order without causing the yarn breakage.

    PNEUMATIC DUCT FOR AIR-SPINNING FRAME

    公开(公告)号:JPS584828A

    公开(公告)日:1983-01-12

    申请号:JP10055781

    申请日:1981-06-30

    Abstract: PURPOSE:The titled pneumatic duct in which its cross section is made rectangular and the width is kept almost parallel whereby the amount of staple fibers twining around major fibers increased and spun yarn of high strength is produced. CONSTITUTION:In the pneumatic duct D which is set between the drafting part consisting of back roller 2, front roller 4, aprons 5, 5' and other parts, and the air nozzle for false twisting 9, the cross section of the pneumatic duct 6 on which the yarn 1 being spun passes in a straight line is made rectangular, the side walls 6e are made almost parallel and the sucking pipe connecting to the evacuator outside is set on the end of the bottom surface. Preferably the width 12 of the pneumatic duct 6 is more than 3 times the height 11, meanwhile the cross section of the outlet a2 leading to the sucking pipe 8 is rectangular and the width d2 is more than 2.5 times the height d1.

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