Method for compensating for pressure between yarn barrels and roller of vertical elastic warping machine automatically

• Main Authors: JI CHENGXIANG, LIU YONGJUN, TAN YAFEI, XU JINYONG
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2010
• Subjects: MECHANICAL FINISHING OF YARNS OR ROPES; TEXTILES; WARPING OR BEAMING; WARPING, BEAMING OR LEASING; YARNS

The invention relates to a method for compensating for the pressure between the yarn barrels and roller of a vertical elastic warping machine automatically, which comprises the following steps that: the initial pressure and final pressure between the yarn barrels and the roller and the length of yarns wound on the yarn barrels are set on a man-machine interface, wherein the initial pressure and final pressure between the yarn barrels and the roller and the length of yarns wound on the yarn barrels can be transmitted to a programmable logic controller (PLC); and the PLC can calculate a required pressure V between the yarn barrels and the roller according to a formula when the yarn barrels are at different positions in the unwinding process of the yarns on the yarn barrels and a potentiometer can measure an actual pressure V2, wherein if the V2 is less than the V, a single-phase alternating motor works to drive a barrel sub-arm holding a plurality of yarn barrels to move synchronously to change the position of