公开(公告)号：EP0077199A3

公开(公告)日：1984-11-21

申请号：EP82305378

申请日：1982-10-08

申请人： Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

发明人： Araki, Hidejiro

IPC分类号： D01H01/36

CPC分类号： D01H13/16

摘要： A method and an apparatus for automatically controlling the winding tension of the roving in a bobbin lead roving machine is disclosed. The mean bobbin winding diameter D e , bobbin r.p.m. N B and the flyer r.p.m. N F are measured automatically for one or more operating spindles, and a mathematical equation (N B /N F - 1) x D B = K representative of winding conditions for the roving is solved by automatic operation based upon the above measured values. When the value K thus obtained exceeds a preset control limit, the bobbin r.p.m. is decreased or increased automatically for correcting the value K towards its central setting for automatically correcting the winding tension of the roving.

公开(公告)号：EP0077198A3

公开(公告)日：1984-11-21

申请号：EP82305377

申请日：1982-10-08

申请人： Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

发明人： Araki, Hidejiro

IPC分类号： D01H01/36

CPC分类号： D01H13/16

摘要： Described is a bobbin lead roving machine in which target r.p.m. values for the bobbin (1) are found in advance for each of arbitrarily selected numbers of the layers of the roving taken up on the bobbin (1) and are stored in a micro-computer (A) there r.p.m. values are compared to actual r.p.m. values for respective ones of said arbitrarily numbers of the layers, and compensation is made automatically for any offsets resulting from such comparison for causing the r.p.m. of the bobbin (1) to be within a control limit, in a manner that the take-up tension placed on the roving is kept constant during spinning from the beginning until the end of winding on the bobbin for producing roving of uniform weight (with a constant weight/unit length).