SU448155A1 - The device for the layout of the thread - Google Patents

Description

The invention relates to textile industry and relates to devices for wound yarns from man-made fibers on spinning and rewinding machines. A device for laying out a yarn, containing a yarn feeder with a magnetic element, interacting with the magnetic field of a driving drum made in the form of a rotating cylinder with permanent magnets fixed on it by a closed helix. However, the use of permanent magnets in known devices does not allow to obtain sufficient pickup forces especially with an increase in winding speed and in acceptable overall dimensions, since the rapid rotation of permanent magnets in combination with vibrations and heating of the operating mechanism leads to full sweat | e magnetic properties. In this connection, the breakdown of the nitevodichvl occurred at the points of the reverse and there is a certain quality of the winding about the defects of both the form and the structure. In order to increase the pickup speed, the lead drum is made in the form of a support magnet with a closed screw slot and a magnetization coil located in it. In addition, in order to improve the synchronization of the movement of the yarn feeder and to adjust the force acting on it, the magnetic element of the yarn feeder is a coil of electrically conductive material, and the closed screw of the magnetic core is made of variable cross section. FIG. X is a schematic representation of the proposed device for laying a yarn in section; in fig. 2- slot of the magnetic circuit; in fig. 5 device for the layout of the two threads., General view; in fig. 4- option

devices with a fixed magnetization coil.

The proposed straightening device (see Figs, I and 4) will hold the lead drum consisting of a magnetization coil I with a core 2 located in the magnetic core 3 having a closed screw slot 4.

The coil with the core and magnetic circuit is mounted rotatably, with the core coil fixed and the magnetic core rotating (see Fig. 4).

The slot, which is the rupture of the magnetic circuit, is filled with a reinforced non-magnetic material 5.

Parallel to the main axis of the leading drum, guides 6 are fixed with a yarn guide.

7 with a magnetic element (not shown in the drawings). The magnetic element can be made either in the form of a plate of a material based on beryl, or

in the form of turns of electrically conductive material.

When current is passed through a magnetizing coil, a magnetic field arises around it, the lines of force of which are closed along the core and magnetic circuit.

8b the break of the magnetic circuit, the magnetic flux bulges and closes through the magnetic element of the yarn feeder.

In order to obtain a reciprocating movement of the yarn feeder, the rupture is made in the form of a closed screw surface, and the leading drum is told to rotate

In the process of operation, the yarn feeder moves backwardly in the guides, interacting with the rupture of the magnetic circuit and reproduce the law of change of the speed of movement, depending on the geometric shape

magnetically broken,

In order to synchronize the movement of the yarn feeder in its base can be mounted

coils of electrically conductive material. The lag of the yarn feeder leads to a change in the magnetic flux intersecting the loop of the windings and the appearance of an orienting force, which eliminates the lag.

The adjustment of the force acting on the nitrovodital can be accomplished by increasing

buckling of the magnetic field together with the breaking of the magnetic circuit.

This is achieved by using a break in a variable cross section magnetic circuit.

The use of the proposed device for the layout of the thread can significantly increase the speed of winding the thread, reliability and durability of the device.

The subject of the Invention.

Claims (3)

1.2. A straightening device containing a yarn feeder with a magnetic element is installed. in guides and interacting with the leading drum's magnetic field, characterized in that, in order to increase the speed of the drum, The driving drum consists of a magnetic circuit with a closed screw slot and a magnetizing coil located in it. 2. DEVICE as per item I, characterized in that,. In order to improve the synchronization of the movement of the yarn feeder, the magnetic element is a coil and is made of an electrically conductive material. 3. The device according to claim I, characterized in that, in order to regulate the force acting on the yarn feeder, it is closed screw slot magnetic circuit is made of variable section. ..... L W // y / VY