Apparatus for forming a piecing end on a yarn winding

Details Apparatus for forming a piecing end on a yarn winding Apparatus for forming a piecing end on a yarn winding

1973-09-20

1976-06-22

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 5402, B65H 5434

Patent

active

039646904

ABSTRACT:
An apparatus for forming a piercing end on a winding of yarn includes an auxiliary guide for engaging a strand of yarn and retaining the strand of yarn adjacent to one end of a spool core for a predetermined time interval. The auxiliary guide projects from a pivoted arm member, the motion of which is limited in one direction by a magnetic bar which attracts and holds the arm member, and is limited in the other direction by a stop which engages the arm member and rebounds the arm member back to the magnetic bar. In operation, the strand of yarn is entrained around the auxiliary guide and hooked by the spool core. When a predetermined tension is applied to the strand of yarn, the arm member will disengage from the magnetic bar, allowing the strand of yarn to move along the auxiliary guide until the strand leaves the end of the auxiliary guide. Just before the arm disengages from the magnet, a series of overlapping coils will form adjacent to the end of the spool core. When the arm member disengages from the magnetic bar and the yarn slides along the auxiliary guide, a series of coils of increasing pitch are then formed along the spool core. These windings form the piercing end. After the yarn is disengaged from the auxiliary guide, it is captured by a conventional reciprocating guide, which distributes the yarn along the spool to form the main winding.

REFERENCES:
patent: 3166262 (1965-01-01), Vanneman, Sr.
patent: 3275252 (1966-09-01), Bolger
patent: 3282516 (1966-11-01), Porter
patent: 3792818 (1974-02-01), Bauer et al.

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