Yarn conveying device and method for electromagnetic driving circular knitting machine

Abstract

The invention belongs to the technical field of spinning equipment and discloses a yarn conveying method for an electromagnetic driving circular knitting machine. A yarn conveying device comprises a yarn storage drum, a yarn conveyor, a driving mechanism, a detection element and a controller, wherein the yarn storage drum is used for storing the yarns; the yarn conveyor is used for reeling the yarn; the driving mechanism is capable of realizing the stepless regulation of the yarn conveying speed; the detection element is arranged on an end face of the circular knitting machine and a yarn storage drum fixing plate; the controller is used for analyzing a detection signal and regulating the rotating speed of a yarn storage drum motor; according to the yarn conveying method for regulating the yarn conveying speed in real time by utilizing the driving mechanism, the yarn conveying volume and the yarn consumption of the fabric can be balanced; the yarn storage drum and the yarn conveyor are separately arranged and are in the working manner of independently moving, so that the knotting between the yarns moving in a space coordinate can be effectively avoided; the yarn conveyor is indirectly fixed on a cam of the circular knitting machine and an independent driving mechanism is equipped, so that the synchronous rotation of the yarn conveyor and the cam can be guaranteed, the stepless regulation of the yarn conveying speed can be realized, the yarn conveying process is continuous and the yarn-breaking automatic stopping phenomenon can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of spinning equipment, and in particular relates to a yarn feeding device and method for an electromagnetically driven circular weft machine. Background technique [0002] In the prior art, the yarn is drawn out from the fixed yarn storage tube, and the yarn is conveyed by the fixed yarn feeder through the stationary yarn guide nozzle, thereby entering the knitting area, and the knitting needle rotates with the needle cylinder and is pushed up and down by the triangle, thereby Pick up the yarn and weave. [0003] In summary, the problems in the prior art are: [0004] The up and down motion of the knitting needle of the electromagnetic drive circular weft machine is driven by electromagnetic force. Due to the characteristics of the electromagnetic device, its position cannot be changed, so that the knitting needle cannot rotate with the needle cylinder. The yarn feeding device in the prior art is fixed on t...

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Problems solved by technology

[0004] The up and down motion of the knitting needle of the electromagnetic drive circular weft machine is driven by electromagnetic force. Due to the characteristics of the electromagnetic device, its position cannot be changed, so that the knitting needle cannot rotate with the needle cylinder. The yarn feeding device in the prior art is fixed on the circular weft machine. It is on a circular track, so the yarn feeding device is fixed, resulting in no relative movement between the knitting needle and the yarn during the knitting process, so that the yarn cannot be hooked and the knitting action is completed

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