Robot apparatus for double twister
AssigneeMurata Kikai Kabushiki Kaisha
InventorsTsukasa Kawarabashi, Hiroshi Mima, Tadashi Suzuki
Life of this patent
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Abstract
A robot apparatus for a double twister, which can travel along the units of the double twister, is provided with an operating arm for drawing a yarn end from a feed package, a suction arm for drawing a yarn end from a winding package, a yarn hook portion for hooking both the drawn yarn ends, and a piecing device for piecing both the yarn ends at the hook portion. The robot apparatus is operated to enable formation of a full winding package having a predetermined winding amount from a plurality of feed packages without requiring a yarn length counter.
Claims13
A method of operating a robot device for a double twister, the double twister comprising a plurality of units, each of the units configured for supporting a winding package and a feed package, the winding package defining a yarn end and the feed package defining a yarn end, the method comprising:
- detecting a unit having a yarn breakage,
- detecting whether the unit having the yarn breakage has a winding package having a predetermined diameter and which a yarn feed package has yarn remaining thereon,
- exchanging the yarn feed package and doffing the winding package when a winding package having a predetermined diameter is detected and yarn remaining on the feed package is not detected,
- exchanging the yarn feed package and piecing the yarn end of the winding package and the yarn end of the feed package when a winding package having a predetermined diameter is not detected and yarn remaining on the feed package is not detected, and
- piecing the yarn end of the winding package and the yarn end of the feed package when a winding package having a predetermined diameter is not detected and yarn remaining on the feed package is detected.
In a double twister comprising a plurality of units, each of the units configured for supporting a winding package and a feed package, the winding package defining a yarn end and the feed package defining a yarn end, a robot device configured for traveling along the units of the double twister, a robot device comprising:
- means for detecting a unit having a yarn breakage,
- means for detecting whether the unit having the yarn breakage has a winding package having a predetermined diameter and a yarn feed package having yarn remaining thereon,
- means for exchanging the yarn feed package and doffing the winding package when a winding package having a predetermined diameter is detected and yarn remaining on the feed package is not detected,
- means for exchanging the yarn feed package and piecing the yarn end of the winding package and the yarn end of the feed package when a winding package having a predetermined diameter is not detected and yarn remaining on the feed package is not detected, and
- means for piecing the yarn end of the winding package and the yarn end of the feed package when a winding package having a predetermined diameter is not detected and yarn remaining on the feed package is detected.
Dependencies are inferred from the claim text.