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    • 1. 发明授权
    • System for measuring the twist of spun yarn in open-end spinning
    • 用于测量开口纺纱中纺纱捻度的系统
    • US3878671A
    • 1975-04-22
    • US39774173
    • 1973-09-17
    • ELITEX ZAVODY TEXTILNIHO
    • SEIDL PAVELMLADEK MILOS
    • D01H4/44D01H13/32G01N33/36G06M7/00G06M11/00D01H1/12
    • D01H13/32G01N33/365
    • An open end spinning unit having feed means for delivering fibrous material, a rotary twisting means for spinning the fibers into a yarn, and a rotary withdrawing means for taking up the yarn. A first detector is located to sense the revolution of said twist means and providing an output having a value proportional to the number of revolutions. A second detector is located to sense the revolution of the withdrawing means and providing an output having a value proportional to the number of revolutions thereof. The first detector is connected to the output of a first counter between which is interposed a gate means. The second detector means is connected to the input of a second counter, the output of which is connected to the input of the gate, and which provides a signal for controlling the gate. An indicator is connected to the first counter to record the value received by the counter.
    • 具有用于输送纤维材料的进给装置的开口纺纱单元,用于将纤维纺丝成纱线的旋转扭转装置和用于卷取纱线的旋转抽出装置。 第一检测器被定位成感测所述扭转装置的转动并提供具有与转数成比例的值的输出。 第二检测器被定位成感测抽出装置的旋转并提供具有与其转数成比例的值的输出。 第一检测器连接到第一计数器的输出端,第一计数器插入门装置。 第二检测器装置连接到第二计数器的输入端,第二计数器的输出端连接到栅极的输入端,并提供用于控制栅极的信号。 指示灯连接到第一个计数器以记录计数器接收到的值。