A hybrid magnetic levitation knitting needle driving device and its control method

Abstract

A hybrid magnetic levitation knitting needle driving device, including a shell and a knitting needle, the shell is a cylindrical structure, a coil bobbin is set inside the shell, the coil bobbin is a cylindrical structure, and the inner peripheral surface of the coil bobbin is along the There are two radial support blocks arranged symmetrically on the central axis, and an optical fiber displacement sensor connected to the signal of the control system is installed on the radial support block. The lower, middle, and upper outer peripheral surfaces of the coil frame are respectively wound with a primary coil and a secondary coil. Coils, tertiary coils, primary coils, secondary coils, and tertiary coils are all electrically connected to the control system. The bottom is a cylindrical permanent magnet, the permanent magnet is located in the lower part of the coil frame, and the permanent magnet and the coil frame are coaxial. This design not only reduces the reaction time of the device, improves the axial displacement of the knitting needle, but also simplifies the control process.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a hybrid magnetic suspension knitting needle driving device and a control method thereof, which are mainly applicable to reducing the response time of the device, increasing the axial displacement of knitting needles and simplifying the control process. Background technique [0002] In the field of textile machinery, the jacquard circular knitting machine performs jacquard on the fabric to weave various patterns and patterns. The electronic needle selection devices of the existing knitting needle computerized jacquard circular weft machines are mainly electromagnetic and piezoelectric, and they all use mechanical parts such as triangular cams, jacquard sheets, and needle jacks to select needles. The contact of the cam realizes the knitting movement up and down, therefore, the triangular cam in the knitting mechanism causes impact friction and lateral force to the knitting needle...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of long device response time, small axial displacement of knitting needles and complicated control process in the prior art, and provide a device with short response time, large axial displacement of knitting needles and simple control process Hybrid magnetic levitation needle driving device and its control method

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