METHOD OF WINDING A TAMPON MATERIAL Russian patent published in 2020 - IPC B65H65/00 B65H69/00 

FIELD: meeting human vital needs; manufacturing technology.

SUBSTANCE: group of inventions relates to a device for forming tampon blanks and a method of winding a tampon material. Device comprises guide of sink, a grip configured for reciprocating movement and arranged and configured to interact with the guide of the drain for gripping the retainer end of the sink, winding core, a plurality of winding cups, a device for installation of a cord and knitting of the assembly. Device for installation of cord and knitting of assembly comprises annular bearing with installed on it a cord carrier, wherein the annular bearing forms a plane perpendicular to the guide of the drain and movement of the grip and parallel to the winding axis of the winding core. Proposed method consists in that fibrous web is pulled from fibrous web margin through guide of slide and across carriage by gripping the free end of the fibrous web margin with the gripper and withdrawing the grip from the fibrous web reserve, separating the fibrous web from the stock of the fibrous web to form an elongated fibrous web, raising the carriage, while one end of web is held by grip, and other—there is still retainer of drain guide, retractable core is extended across central section of elongated fibrous web. In addition, the front end of the winding core with a folded pull-out cord aligned with the winding core axis is engaged.

EFFECT: group of inventions provides production of compacted self-maintained tampons, which increase speed and accuracy of technological process.

9 cl, 5 dwg