SU950819A1 - Runner-ring couple of ring spinning and twisting machines - Google Patents

Description

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The invention relates to the textile industry, namely to devices for twisting yarns on ring spinning and twisting machines.

The famous pair of ring-runner ring spinning and twisting machines, in which the slider contains a working leg with a convex curvilinear surface, contacting it with the inner concave surface of the ring in the transition zone of its vertical wall to the inner side and having a radius equal to the radius corresponding to its surface rings, and an arcuate foot, connected to the leg by a concave curved section with a radius equal to or greater than the radius of the surface of the inner side coli.asI.

This pair is not sufficiently reliable in operation due to the instability of the slider, resulting in increased wear, jamming and frequent breakage of the thread.

The aim of the invention is to increase the wear resistance of the slider and reduce the breakage of the thread.

This target is a pair of ring-runner ring spinning and twisting machines,

which slider contains a working leg with a convex curved surface in contact with the inner concave surface of the ring in the transition zone of its vertical wall to the inner rim and having a radius equal to the radius of the corresponding surface of the ring, and an arcuate foot connected to the leg with a concave curved section with a radius equal to or exceeding the radius of the surface of the inner rim of the ring, is achieved by the fact that the leg is made along the width of the runner of a cylindrical shape, and the interface of the concave curvature The front section of the slider with the curved surface of the leg is offset relative to the interface 15 of the surface of the inner rim with the concave surface of the ring in the direction of the foot by an angle of 5-20 °.

The drawing shows a diagram of a pair of ring-slider, slit.

On the ring 1, for example, an annular spinning machine, there is a slider having a working leg 2, an arcuate tab 3 and a locking leg 4. The working leg is made along the width of a cylindrical runner and its convex curvilinear surface 5 contacting the inner concave surface 6 of the ring 1 the transition zone of its vertical wall 7 into the inner rim 8 has a radius RI equal to the radius of the corresponding surface 6 of the ring.

The arcuate tab 3 of the slider is connected to the leg 2 by a concave curved section 9 with a radius R2 equal to or greater than the radius Rj of the surface 10 of the inner rim 8 of the ring. In this case, the interface 11 of the interface of the slider 9 with the surface 5 of the legs 2 is offset from the interface 12 of the interface of the surface 10 of the rim with the concave surface 6 of the ring by an angle ot equal to 5-20 °. The inside of the HocTt legs 2 on the cylinder forming has a bevel of up to 30 °. The center of gravity of the slider is located in the cylindrical working leg 1, which provides additional stability in operation.

When the slider rotates around the ring in the initial period, it is deflected up to the stop of the fixing leg 3 on the outer side 13 of the ring. When the slider reaches its working frequency of rotation, the centrifugal forces press its working leg to the ring, and the tension force, acting up, unfolds the slider relative to the ring. Further, during the operation of the machine, due to the fact that the layout of the thread is carried out by moving the ring bar of the machine up and down, the slider under the action of the resultant forces varying in size and direction is tilted to the sides. Due to the displacement of the points of conjugation of the arcs of the slider and the ring, a necessary gap is created between them, which is selected in the process of work (during layout, under the action of tension of the thread, etc.). The pair starts working as a hinge joint, ensuring the tension of the thread is constant both in reverse and in reverse.

and when moving up and down. Such a rotation of the slider relative to the ring is provided by the cylindrical shape of the leg 3 of the slider and the presence of the angle "4. The value of this angle depends on the dimensions of the ring, the type of thread.

Placing the center of body of the slider in the cylindrical leg contributes to the additional stability of the slider in the process of working the machine.

All this causes an increase in the wear resistance of the slider by 1.5-2 times and a decrease in the breakage of the thread.

Claims (1)

Invention Formula A pair of ring-slider ring spun and torsion masks, in which the slider contains a working leg with a convex curved surface in contact with the inner concave surface of the ring in the transition zone of its vertical wall to the inner rim and having a radius equal to the radius of the corresponding surface of the ring, and an arcuate foot connected to the leg with a concave curved section with a radius equal to or greater than the radius of the surface of the inner side of the ring, characterized in that, in order to increase wear the slider's capacity and reduce the breakage of the thread, the leg is made along the width a cylindrical slider, and the interface of the concave curved section of the slider with the curved surface of the leg is offset relative to the interface of the inner rim surface with the concave surface of the ring toward the foot by an angle of 5-20 °. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 539100, cl. D 01 H 7/60, 1973 (prototype). / fl eleven