Yarn tension adjustable type intelligent yarn conveying device

Abstract

The invention provides a yarn tension adjustable type intelligent yarn conveying device, which comprises a casing, a yarn conveying wheel, a driving motor, a tension sensor, a tension comparing unit and a tension control unit. The driving motor is installed on the casing, the yarn conveying wheel is installed on an output shaft of the driving motor, a tension measuring part of the tension sensor is located on a yarn delivering path, the tension comparing unit and the tension control unit are installed in the casing, the input end of the tension comparing unit is connected with the tension sensor, and the output end of the tension comparing unit is connected with the input end of the tension control unit. The yarn tension adjustable type intelligent yarn conveying device is characterized in that the driving motor is a brushless direct current motor. The yarn tension adjustable type intelligent yarn conveying device can meet the requirement of high-speed running of the yarn conveying wheel, ensure yarn conveying when a tension value is a certain appropriate value and avoid the phenomenon that yarns are snapped and cannot be conveyed in the yarn conveying process.

Description

[0001] technical field [0002] The invention relates to a yarn feeder of a textile machine, in particular to an intelligent yarn feeder with adjustable yarn tension. Background technique [0003] The yarn feeder is the yarn feeding and storage device of the textile machine. Its main function is to stabilize the tension of the yarn feeding, so that the yarn can enter the weaving continuously and smoothly. The existing knitting jacquard circular knitting machine yarn feeder, due to the complex yarn guide line and the long yarn stroke, there are many factors affecting the yarn tension, the yarn feeding tension is unstable, and the intermittent movement of the knitting jacquard circular knitting machine yarn feeder The performance and control are not sensitive, and it is easy to cause the phenomenon that the yarn tension is too large and the yarn is broken, and the yarn tension is not enough and the slack cannot be conveyed. [0004] Patent No. 201020265418.2 is an intelligent...

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Problems solved by technology

[0005] Although the intelligent yarn feeder with the patent No. 201020265418.2 can sense the tension value of the yarn through the pressure sensor, it can ensure that the yarn is fed when the tension value is a certain value, so as to avoid the phenomenon that the yarn is broken and cannot be conveyed. However, due to its The wire wheel is driven by a stepping motor, and the rated speed of the stepping motor is not high. When the high-speed operation of the wire feeding wheel is required, the stepping motor cannot meet the requirements, which affects the yarn feeding speed of the yarn feeder, and cannot meet the high-speed operation of the wire feeding wheel. need

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