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公开(公告)号：US4027705A
公开(公告)日：1977-06-07
申请号：US675183
申请日：1976-04-08
申请人： Petr Safar , Josef Langr , Miloslav Kolar , Stanislav Nosek
发明人： Petr Safar , Josef Langr , Miloslav Kolar , Stanislav Nosek
CPC分类号： D03D47/34 , B65H59/22 , B65H2301/5115 , B65H2701/31
摘要： A strand advanceable from a supply spool to a weaving machine of the shuttleless type under variable tension is routed through an adjustable braking mechanism. The braking mechanism includes a flat guide plate along which the strand advances, the strand being contacted at longitudinally spaced portions of the guide plate by means of a succession of angularly depending leaf springs which are carried at longitudinal intervals in an overlying holding member. The input end of the holding member is pivotally supported on a frame member that carries the guide plate, and a helical spring biases the holding member obliquely relative to the underlying guide plate so that the distance between the holding member and the guide plate increases in the direction of advance of the strand. The angle formed by the depending leaf springs from the lower surface of the holding member successively increases, and the length of the depending arms are so chosen that the lower ends of the arms come into substantial registration on the upper surface of the guide plate through the intervening strand. A screw and lock nut mechanism is provided for selectively moving the holding member downwardly toward the guide plate against the force of the helical spring to vary the contact pressure of the resilient arms on the strand and also to increase the differential in contact pressure applied by the successive resilient arms.
摘要翻译： 在可变张力下从供应卷轴到无梭型织造机可推进的绳索通过可调制动机构布置。 制动机构包括一个扁平的引导板，其中股线前进，该股线通过一系列角度依赖的板簧在引导板的纵向间隔开的部分处接触，该片簧沿纵向间隔承载在上覆的保持部件中。 保持构件的输入端被枢转地支撑在承载导向板的框架构件上，并且螺旋弹簧相对于下面的导向板倾斜地偏压保持构件，使得保持构件和引导板之间的距离在 线的前进方向。 由固定板弹簧从保持构件的下表面形成的角度依次增加，并且悬臂的长度如此选择，使得臂的下端基本上对准在引导板的上表面上，通过 中间线 提供螺钉和锁定螺母机构，用于克服螺旋弹簧的力使保持构件向下朝向引导板移动，以改变弹性臂在股线上的接触压力，并且还增加由该弹簧臂施加的接触压力的差异 连续的弹性臂。
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