The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Nov. 16, 2016
Rieter CZ S.r.o., Usti nad Orlici, CZ;
Evzen Pilar, Litomysl, CZ;
Rieter CZ s.r.o., Usti nad Orlici, CZ;
Abstract
A method is provided for resumption of a yarn spinning process on an air-jet spinning machine wherein, after an interruption of yarn spinning has occurred, the yarn is guided back to a working path downstream of a spinning nozzle, or the yarn is stopped in a controlled manner in the working path, with an end of the yarn situated downstream of the spinning nozzle. The yarn end is introduced into an outlet opening of the spinning nozzle, and the yarn is transported in a reverse path with the aid of the spinning nozzle and a sliver feeding device to a guide channel upstream of the spinning nozzle. A spinning-in yarn end is formed on the yarn in the guide channel, and a yarn reserve is formed in an underpressure yarn storage device upstream of a yarn winding device. Winding of the yarn onto a bobbin is started before, simultaneously with, or after the formation of the spinning-in yarn end. Before the yarn reserve from the underpressure storage device is used up by the winding of the yarn, withdrawal of the yarn by a drawing-off device is started. Following the start of the yarn withdrawal, the yarn is clamped by the sliver feeding device and feeding of new fibers through a drafting device to the sliver feeding device is started.