The present invention relates to a yarn tensioner (T). The yarn tensioner comprises a series of rigid yarn deflecting element (1), the yarn deflecting element jointly determine the yarn path (P), the middle yarn deflecting element intervals distribution in yarn path opposite on both sides of the yarn, a corresponding deflection element is provided on one side and make it relative to the yarn deflection the element is arranged on the opposite side of (1) in the direction of the yarn (D) are offset, at least one yarn deflecting element (2a, 2b) can be approximately perpendicular to the yarn path adjustment, change the tension effect in yarn tensioner working condition, the yarn path (P) in the the yarn path (P) at least one thin spring on each side of the flexible (8a, 8b) in the yarn deflecting element (1, 2) is formed between the spring piece, by deflecting element bias toward each other, making a corresponding spring (8a, 8b) in the yarn path (P) A position in support of the deflecting element, and a corresponding spring and arranged in parallel in the same position along the direction perpendicular to the direction of the yarn (D) free from the bow and a spring, spring (8a, 8b) in the direction of the yarn (D) obviously than by a series of yarn deflecting element (1, 2) occupy the distance longer, spring longitudinal free end and the corresponding first yarn deflecting element in the direction of travel is far away from the yarn.
【技术实现步骤摘要】
本专利技术涉及一种依据权利要求1前序部分所述的纱线张紧器。
技术介绍
在由US 5738295A已知的纱线张紧器中,纱线路径由在纱线路径一侧上的四个固定的刚性偏转元件和在纱线路径另一侧上的三个刚性偏转元件所确定,使得纱线路径具有 Z字形的结构。在纱线路径另一侧上的三个偏转元件通常可垂直于纱线行进方向进行调节, 以通过改变围绕偏转元件的偏转角度改变张紧效应。行进的纱线仅仅由摩擦力制动,取决于整个的偏转角和在纱线与偏转元件之间的摩擦系数。纱线张紧器不得不在纱线中产生张紧力,该张紧力可以精确地调节并且将相对恒定地保持在设定值。然而,只要行进的纱线包含结、缠绕或者不规则,当结经过纱线张紧器并且跳过偏转元件时,纱线张紧力就会剧烈地改变七次。这种效应会导致纱线断裂或者会使得经过很长时间才能重新获得最初设定的纱线张紧力值。EP 1072707A公布了一种相似的纱线张紧器,该纱线张紧器一共带有七个偏转元件和用于调节张紧效应的直线电动机,以在插入织机的循环期间达到预先确定的可变的张紧路线。张紧效应取决于纱线围绕偏转元件的包容角并且以包容角的大小的指数函数变化。这允许达到相对高的 ...
【技术保护点】
1.一种用于行进的纱线(Y)的纱线张紧器(T),所述纱线特别是结实的、重纱线质量的纱线,所述纱线张紧器包括一系列至少三个刚性纱线偏转元件(1、2),所述偏转元件共同确定了经过所述纱线张紧器(T)的纱线路径(P),所述纱线偏转元件在纱线行进方向(D)上相间隔地分布且分布在所述纱线路径(P)的相反的两侧上,使一相应的纱线偏转元件设置在一侧上并使其相对于位于所述纱线路径(P)的相反侧上的相邻的纱线偏转元件在纱线行进方向(T)上有偏移,至少一个纱线偏转元件能以手动的和/或机动的方式大致上垂直于所述纱线路径相对于设置在纱线路径的相反侧上的另一偏转元件进行调节,以在纱线张紧器的工作状态 ...
【技术特征摘要】
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【专利技术属性】
技术研发人员:比约恩·哈尔瓦松,安德斯·斯万斯特伦,
申请(专利权)人:IRO有限公司,
类型:发明
国别省市:SE
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