SU1720974A1 - Device for axial unreeling of thread-like material - Google Patents

Abstract

The invention relates to a device for winding a thread-like material and provides for winding a thin yarn from i.-iiliv: - - - I SHLEVTbK carcass. The purpose of the invention is to simplify the design. The device comprises a coil 1 with a thread 11 mounted on axis 2 and a tension mechanism. The tensioning mechanism consists of a leash 4, an annular elastic element 5 and a permanent magnet 6, also made in the form of a ring. When the yarn 11 is tensioned, the free end of the leash 4 rotates around the coil 1 and thus the yarn 11 is rolled up from the coil 1. When the yarn 11 is loosened, the leash 4 is pressed against the elastic element 5 by the forces of attraction of the permanent magnet 6, deforming it. The degree of deformation depends on the degree of weakening of the thread tension. 1 il.

Description

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The invention relates to a device for winding thread-like material from stationary reels.

The purpose of the invention is to simplify the design.

The drawing shows a General view of the device.

The device contains a donating coil 1 mounted on an axis 2 fixed in bracket 3, and a tension mechanism for a thread-like material having a leash 4, an elastic element 5 and a permanent magnet 6. The leash 4 is fixed at one end through a hinge 7 by means of a ball bearing 8 2 so as to allow the free end to rotate around the coil 1. At the free end of the leash 4, a die 9 is installed to pass the thread. The elastic element 5 is made in the form of a ring of elastic material and is fixed on the axis 2 of the coil 1. The permanent magnet 6 is also made in the form of a ring and

installed on axis 2 with the possibility of rearrangement on it. The magnet 6 is located relative to the driver 4 at a distance that ensures the contacting of the driver with the elastic element 5 and interaction with the magnet.

The device works as follows.

Before starting winding, the thread is passed through the die plate 9 and the necessary tension of the thread is selected by moving the magnet 6 along the axis. When winding the filamentous material, one of the components of the tension force of the threads 10 and 11 and the force generated at the point of separation of the thread from the surface of the coil 1 tends to rotate the leash 4 around the coil. The other component is balanced by the force of attraction of the magnet 6. In this case, only rolling friction in the ball bearing 8 is overcome. Therefore, an increase in the winding rate of the

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is not limited retically. When loosening or stopping (breakage of filament material), the leash 4 experiences the force of attraction of the magnet 6, presses against the elastic element 5, deforms it. In this case, slack is chosen. The degree of deformation of the elastic element depends on the degree of tension of the thread, ensuring smooth control of the tension of the reeled thin thread. Moreover, in the event of a sudden stop of the winding up of the thread, due to the low inertia of the leash, even a thin niCH does not break.

The device provides technological expansion by winding thin yarns and simplifying the design of the device due to the elimination of the complex kinematic chain of the tension mechanism, which creates inertia of the device.

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Arrangements as well as the elimination of stepwise tension control.

Claims (1)

Claims An apparatus for axially winding a filamentary material, comprising an axially discharging coil and a material tensioning mechanism, including a permanent magnet mounted on an axis of the coil, an elastic element and a leash mounted rotatably around the coil, characterized in that simplify the construction, the elastic element is made in the form of a ring of elastic material, and the permanent magnet has a means for its axial rearrangement, while the leash is mounted on a hinge between coil and the elastic member with the possibility of contacting and reacting the latter with a magnet. 6 7 2