Winding device

Abstract

The present invention provides a winding device capable of maintaining a state in which a package is separated from a roll without using regenerative power. It is provided with a cradle (81) that rotatably supports a package (P), and rotates to assist winding of the spun yarn (Y) while in contact with the package (P) (contact roller 82 ), and the winding device (100) of the lifting mechanism (Rm) that rotates the above-mentioned cradle (81) so that the above-mentioned package (P) is in contact with the above-mentioned roller (touch roller 82) or in a separated state of separation , the above-mentioned elevating mechanism (Rm) has a locking function for maintaining the above-mentioned states without power supply.

Description

technical field [0001] The present invention relates to the technology of a winding device for forming a package by winding spinning. Background technique [0002] Conventionally, a winding device is known that winds spun yarn unwound from a yarn supplying bobbin to form a package (see, for example, JP-A-2009-286608). The winding device includes a cradle that rotatably supports the package, and a roller that rotates while in contact with the package to assist winding of the spun yarn. In addition, the winding device is provided with an elevating mechanism that rotates the cradle so that the package and the roller can contact or separate from each other (see, for example, JP-A-2010-13259). [0003] The winding device cuts off the spun yarn and separates the package from the roll in the event of a power failure. This is for the purpose of preventing the spun yarn having a defective part from being wound into the package, and at the same time preventing the deterioration of t...

AI Technical Summary

Problems solved by technology

In the winding device with such a structure, since the moment of inertia such as the outer diameter of the package changes, it is difficult to use the regenerative power obtained from the rotation of the package as the power source of the lifting mechanism.

That is, when the moment of inertia of the package is small in the state where the yarn is almost not wound, regenerative power cannot be stably obtained, so the energization to the solenoid valve and the like cannot be continued.

Therefore, even if the winding device with such a structure separates the package from the roll, it cannot maintain the separated state, and there is a problem that the package and the roll come into contact again.

That is, there is a problem that the spun yarn wound on the package is rubbed by the rotation of the roller, and the quality of the spun yarn is deteriorated.

[0007] Also, even in a winding device with a structure in which the package is driven to rotate by the actively rotating roller, the same problem is considered to occur when the moment of inertia of the roller is small.

That is, when the moment of inertia of the roller is small, since regenerative power cannot be obtained stably, it is not possible to continuously energize the solenoid valve, etc.

In addition, if the energization to the solenoid valve stops due to a power failure, the package is separated from the roller by the force of the spring (the structure using a normally open solenoid valve). ), the power used to make the package and the roller contact is always consumed, so the burden on the running cost is large

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