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:
Oct. 31, 1995
Filed:
May. 05, 1993
Tsutomu Nakano, Kariya, JP;
Katsumi Nakane, Kariya, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Abstract
A data base used for determining the amount of decrease in the bobbin rotational speed that corresponds to an increase in the number of roving layers, along with silver weight, fiber kind, the number of revolutions of a flyer and the number of laps over presser, etc. as variables, is stored in a program memory. Based on roving conditions entered through an input unit and the data base stored in the program memory, a CPU calculates the amount of decrease of the bobbin rotational speed that corresponds to the increase in the number of sliver layers. With a control signal output from the CPU in response to the increase in the number of sliver layers, a wind-up motor is controlled to slow down so that the bobbin rotational speed is gradually reduced by a predetermined amount. The bobbin rotational speed is also controlled depending on the sliver position between a front roller and a flyer top.