Winding unit and yarn winding machine equipped with the same

Abstract

The present invention aims to provide a winding unit having a configuration in which a yarn feeding bobbin is replaced while suppressing rise in manufacturing cost and lowering in quality of a package. As means for achieving such an object, a winder unit (4) of the present invention includes a bobbin holding portion (110), a bobbin supply device (60), a winding section (16), a yarn splicing device (14), a chase portion detection sensor (74), and a determination section (51) . The bobbin holding portion (110) holds a yarn feeding bobbin. The bobbin supply device (60) performs a supplying operation of the yarn feeding bobbin to the bobbin holding portion (110). The winding section (16) performs a winding operation of winding a yarn of the yarn feeding bobbin held by the bobbin holding portion (110) to form a package. The yarn splicing device (14) performs a yarn splicing operation of splicing a yarn end of the package and a yarn end of the yarn feeding bobbin when the yarn is cut. The chase portion detection sensor (74) detects presence / absence of the yarn feeding bobbin at the bobbin holding portion (110). The determination section (51) determines whether or not supply of the yarn feeding bobbin is successful based on a detection result of the chase portion detection sensor (74) after the bobbin supply device (60) performs the supplying operation of the yarn feeding bobbin and until the yarn splicing device (14) starts the yarn splicing operation.

Description

technical field [0001] The invention generally relates to a unit for rewinding yarn from a supply bobbin onto a package. Background technique [0002] There is known a winding unit in which the yarn is unwound from the yarn supply bobbin in the yarn supply section, and the yarn unwound from the yarn supply bobbin is rewound onto the take-up bobbin in the take-up section to form a take-up coil. Pack. In addition, there is also known a yarn winding machine in which a plurality of winding units are arranged in a row. As one of such yarn winding machines, a warehouse-type yarn winding machine in which each winding unit is provided with a magazine is known. In the yarn winding machine of the warehouse system, each winding unit is equipped with a magazine for accommodating a plurality of yarn supplying bobbins, and the magazine is intermittently rotated at a predetermined pitch to supply the yarn supplying bobbins to the yarn supplying section. In addition, it is known that a y...

AI Technical Summary

Problems solved by technology

The second reason is that the yarn supply bobbin is supplied to the yarn supply section, but the yarn end cannot be sucked from the end of the yarn supply bobbin on the unwinding side due to a malfunction of the device, etc.

However, since the package is rotated at a low speed, the winding shape is disordered

Therefore, the failure of splicing becomes the cause of poor package quality

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