SU1606419A1 - Method and apparatus for forming thread packing - Google Patents

Abstract

The invention relates to the textile industry and can be applied on basic machines and automatic machines. The purpose of the invention is to improve the quality of the package. The device consists of a slope with a spindle on which the winding package is fixed, a winding drum with a closed helical groove, while to prevent the formation of harness winding without reducing the performance of the winding device, elastic diaphragms connected by a channel system with a compressed air source are installed on the drum surface. When the critical winding radii are reached, the protrusions on the slope interact with a control valve, which provides compressed air through pipes and channels to the orifice plates. At the same time, the diaphragms are deformed and the diameter of the surface interacting with the winding package increases, which ensures the necessary shift of the winding turns. In addition, the braking of the package is eliminated and the performance of the winding device is not reduced. 2 sp.f-ly, 3 Il.

Description

The invention relates to the textile industry, in particular, to methods and devices for winding a yarn on a package with crosswise arranged turns, and can be applied to winding machines and automatic machines.

The purpose of the invention is to improve the quality of the package.

Fig. 1 shows a diagram of an apparatus for carrying out the method: Fig. 2 shows the same section through a winding drum; on fig.Z - scan the outer surface of the drum.

The device for forming the package consists of the body 1, on which the tilt 2 is mounted

with a spindle 3 and with a molded package 4 fixed on the spindle. The packaging is installed with the possibility of interaction with the winding drum 5 fixed on the drive shaft 6 and having a closed screw groove 7 on the outer surface. The drive shaft is mounted on bearings 8 and connected with gear 9 to the drive ( not shown). On the drum surface in the additional grooves, elastic diaphragms 10 are installed, under which sealed annular cavities 11 are formed, connected by channels 12 through the sealing device 13, pipelines 14 and control valve 15 with a source of compressed air. The control valve is mounted on the body

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interacting with protrusions on the sub-16.

Elastic diaphragms 10 with a system for supplying compressed air form a means of adjustable clamping of the spindle 3 to the winding drum 5.

The formation of filament-like package 4 is carried out as follows.

The package, which is rotatably mounted on a slope, is pressed against a winding drum with a closed helical groove, which rotates at a constant angular velocity, while the groove of the drum ensures that the package is wrapped around the package.

When the critical diameter of the formation of the fiber is reached, winding the threads on the package changes (increases) the diameter of the surface of the drum interacting with the package; this increases the ambient velocities of the surfaces of the drum and package, increases the angular speed of the package at a constant frequency of the yarn layout, and ensures that the winding turns of the thread are proportional to the change in the diameter of the drum.

A device for implementing the method works as follows.

The drum 5 receives rotation from the drive through the gear 9 and reports the rotation of the package 4 pressed to the drum, while the groove 7 provides the layout of the thread on the package. As the package winds up, the winding radius increases, the package rises together with the spindle 3, turning the slope 2, and the protrusions on the slope 16, when reaching a winding radius close to critical, interact with the control valve 15, opening it. Compressed air from the source through the valve 15, the pipes 14, the sealing device 13 and the channels 12 are fed into the sealed cavities 11, deforming the diaphragm 10, as a result of which the diameter of the surface interacting with the package changes (increases), the rotation frequency of the package changes and the winding layers are shifted and formation of a cord winding is eliminated. When the winding radius on the package exceeds the critical, the protrusions 16 stop interacting with the valve 15, shutting it off, while the sealed cavities communicate with the atmosphere, the pressure in the cavities drops, the diaphragms 10 restore their original

the dimensions, the package interacts with the surface of the drum, not the diaphragms, and the winding is normal. In order to eliminate spindle oscillations and

5 tilt when interacting with the surfaces of the diaphragms, the latter are located on the surface of the drum in such a way as to ensure a constant packing step with at least one diaphragm,

10 that is, the diaphragms together form an annular surface.

Due to such an embodiment of the thread winding device on the package, the braking of the package or

15 of the winding drum, the drive does not overload when braking, the performance of the winder is not reduced.

Claims (2)

1. A method of forming a thread-like package, which consists in feeding the yarn to the winding drum and winding the yarn on the spindle while simultaneously unfolding it along the spindle with cruciform sleeves and clamping the formed package to the winding drum with an adjustable clamping force according to a predetermined law, different That is, in order to improve the quality of the package, the adjustment of the pressure of the formed package to the winding drum is carried out by changing the diameter of the winding drum during the periods of the bundle 5 on the package. 2. A device for forming a thread-like package, comprising a slotted winding drum connected to the drive and a spindle in contact with it, mounted on a slope connected to the spindle adjustable clamping means for the winding drum, characterized in that, in order to improve the quality of the package, the winding drum It is provided with additional grooves on the lateral surface and with central and radial channels communicating with a source of compressed air, and the means of adjustable clamping of the spindle to the winding mu no0 the drum includes a diaphragm arranged in the additional groove winder drum to form a sealed annular cavity associated with incline through control 5 valves. Compressed i Air t / J ig.1 7 11 10 72 5 FIG. 2 ig.Z