Title:
【発明の名称】自動糸切替制御方法
Document Type and Number:
Japanese Patent JP3374589
Kind Code:
B2
Abstract:
PURPOSE: To prevent the adhesion of yarns to a touch roller by decreasing a drive motor control frequency for the touch roller to reduce a surface speed or cutting off a power supply for a touch roller drive motor to reduce the surface speed of the touch roller. CONSTITUTION: A spindle-driven winder is used to control a spindle an a touch roller on the winding side via respective inverters. A winding speed of 4000m/min or higher is applied so that the surface speed of the touch roller is relatively higher than the surface speed of a package, and wound yarns are automatically switched to the other spindle. In this case, a drive motor control frequency C1 when the touch roller is rotated at a target winding speed, a drive motor control frequency C2 for the touch roller before switched and a drive motor control frequency C3 for the touch roller until the yarns are trapped on a bobbin to restart winding are set to satisfy an expression 0<=(C3/C1)-1<=0.90× [(C2/C1)-1].
More Like This:
Inventors:
Kiyoshi Akazawa
Nori Matsubara
Hiroyuki Terasaka
Nori Matsubara
Hiroyuki Terasaka
Application Number:
JP7353595A
Publication Date:
February 04, 2003
Filing Date:
March 30, 1995
Export Citation:
Assignee:
Toray Industries, Inc.
International Classes:
B65H54/70; B65H63/00; B65H67/044; B65H67/048; D01D7/00; (IPC1-7): B65H67/044; B65H54/70; B65H67/048; D01D7/00
Domestic Patent References:
| JP539169A | ||||
| JP413273B2 | ||||
| JP2503903A |