Spinning machine having yarn slack elimination device

Abstract

It is an object of the present invention to provide a spinning machine having yarn slack eliminating device provided therein with an electromagnetic tensor capable of realizing a stable rotation resistance with respect to a yarn slack eliminating roller of the yarn hooking member, and capable of forming a package of stable quality. The yarn slack eliminating device includes a rotating and driving source (25), a yarn slack eliminating roller (21) which is rotated and driven by the rotating and driving source (25), and a yarn hooking member (22) which is mounted on the yarn slack eliminating roller (21) such that the yarn hooking member (22) can relatively rotate concentrically with the yarn slack eliminating roller (21), the yarn slack eliminating roller (21) is provided with magnetic field forming means (34) by electromagnet so that a magnetic field is applied to the yarn hooking member (22), a rotation torque is generated between the yarn slack eliminating roller (21) and the yarn hooking member (22) by the magnetic field generated by the magnetic field forming means (34), and the rotation torque is controlled by input control to the electromagnet.

Description

technical field [0001] The present invention relates to a spinning machine provided with a yarn slack removing device for removing slack in a yarn generated between the spinning machine and a package winding device in a textile machine such as a spinning machine. Background technique [0002] Conventionally, in a high-speed spinning machine such as an air-type spinning machine that winds a spun yarn to form a package, for example, if a yarn defect is detected, the yarn defect is detected with a cutter. After the cutting mechanism cuts and removes the yarn, the yarn end sent from the spinning device and the yarn end on the package side are joined by the yarn joining device. Since the above-mentioned piecing operation needs to be performed while the winding of the yarn is stopped, it is necessary to remove the slack of the yarn between the spinning device and the package winding device. [0003] As a technique for removing such slack in the yarn, a yarn slack removing device ...

AI Technical Summary

Problems solved by technology

[0008] However, in the magnetic tensioner device shown in FIG. 5 and FIG. 6, when the upper machine is changed, etc., when the rotational torque of a plurality of spindles is wanted to be changed together, it is necessary to adjust each spindle, which is very laborious. hard work

Furthermore, it is mechanically difficult to change the rotational torque while continuing to wind the yarn, and it is not possible to perform fine adjustments during spinning and actively change the rotational torque.

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