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:
Aug. 28, 1984
Filed:
Oct. 06, 1982
Hidejiro Araki, Toyoake, JP;
Seisakusho Kabushiki Kaisha Toyoda Jidoshokki, Kariya, JP;
Abstract
A method and an apparatus for automatically controlling the winding tension of the roving in a bobbin lead roving machine is disclosed. The mean bobbin winding diameter D.sub.B, bobbin r.p.m. N.sub.B and the flyer r.p.m. N.sub.F are measured automatically for one or more operating spindles, and a mathematical equation (N.sub.B /N.sub.F -1).times.D.sub.B =K representative of winding conditions for the roving is solved by automatic operation based upon the above measured values. When the value K thus obtained exceeds a preset control limit, the bobbin r.p.m. is decreased or increased automatically for correcting the value K towards its central setting for automatically correcting the winding tension of the roving.