Title:
YARN WINDING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/142553
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent the inclusion of a weak yarn portion in a package. A winding unit 2 comprises: a winder capable of pulling a yarn Y from a package P by temporarily reversing the package P; a yarn splicer 33 for splicing the yarn; an upper yarn trap guide section 36 for suction-trapping an upper thread Y2 during yarn splicing and guiding the upper thread Y2 to the yarn splicer 33; a manual button 53 for an operator to perform restart operation; and a unit controller 60. Before effecting yarn splicing by the yarn splicer 33, the unit controller 60 performs suction processing that draws out the yarn Y from the package P by reversing the package P while causing the upper yarn trap guide section 36 to suction the yarn Y on the winder 40 side. When splicing yarn immediately following a restart operation, the unit controller 60 sets the drawing length of the upper yarn Y2 in the suction processing to a length obtained by adding a preset additional length to the basic drawing length of the yarn used when the yarn splicing is performed without a restart operation therebefore.
Inventors:
KAWAMOTO KENJI (JP)
Application Number:
PCT/JP2018/045677
Publication Date:
July 25, 2019
Filing Date:
December 12, 2018
Export Citation:
Assignee:
MURATA MACHINERY LTD (JP)
International Classes:
B65H67/08; B65H69/06; D01H15/00
Foreign References:
| JP2006143395A | 2006-06-08 | |||
| JPH05246626A | 1993-09-24 |
Attorney, Agent or Firm:
KAJI, SUHARA & ASSOCIATES (JP)
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