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    • 15. 发明公开
    • DRAFTING DEVICE IN SPINNING FRAME
    • ENTWURFSSYSTEMFÜREINEN RINGRAHMEN
    • EP2862966A1
    • 2015-04-22
    • EP14744745.2
    • 2014-05-21
    • Zhangjiagang Guangzhong Textile Machinery Technology Co., Ltd.
    • DENG, Wansheng
    • D01H5/18D01H5/72D01H5/88
    • D01H5/88D01H5/26D01H5/72
    • The present invention relates to a drafting system for a ring frame, which comprises front rollers, front belt rollers, middle rollers and middle belt rollers, wherein a front jaw is formed between the front belt roller and the front roller; a middle jaw is formed between the middle belt roller and the middle roller; a negative pressure tube is formed between the front roller and the middle roller; a recess is formed in the middle of an upper surface of the negative pressure tube; the upper surface of the negative pressure tube is provided with a front gathering mouth and a rear gathering mouth; a tension device is disposed below the middle roller and the negative pressure tube; a flexible ring made of poromeric materials winds around the middle roller, the upper surface of the negative pressure tube and the tension device and completely covers openings of the front gathering mouth and the rear gathering mouth; an upper pin is formed between the front belt roller and the middle belt roller, above a connecting line between the front jaw and the middle jaw; a cambered boss is formed on a lower surface of the upper pin; and a downward extending end portion of the cambered boss abuts against the flexible ring at the recess on the upper surface of the negative pressure tube. The drafting system provided by the present invention is applicable to ring frames and mainly used for the orderly and uniformly arrangement of fibers.
    • 本发明涉及一种环形框架的牵伸系统,包括前辊,前带辊,中辊和中带辊,其中在前带辊和前辊之间形成有前卡爪; 在中间带辊和中间辊之间形成中爪; 在前辊和中间辊之间形成负压管; 在负压管的上表面的中间形成凹部; 负压管的上表面设置有前聚集口和后聚集口; 张紧装置设置在中间辊和负压管的下方; 由波纹材料制成的柔性环绕中间辊,负压管的上表面和张紧装置缠绕,完全覆盖前聚集口和后聚集口的开口; 在前颚和中颚之间的连接线上方,在前带辊和中间带辊之间形成上销, 在上销的下表面上形成有弧形的凸台; 并且所述弧形凸台的向下延伸的端部在所述负压管的上表面上的凹部处抵靠所述柔性环。 本发明提供的牵伸系统适用于环形框架,主要用于纤维的有序和均匀布置。