CS200322B1 - Yearn package,method of making the package and device for executing the package formation - Google Patents

Abstract

In the process, the thread guide (6) moving to and fro in a basic linear movement is additionally given a linear reciprocal fine movement with an amplitude of 3 to 30 mm and a frequency of 60 sec.<-1>. For this purpose, a thread guide (6) is provided in the apparatus which has an eccentric (2) and a spindle (3) with small slides (5). The thread guide (6) is fastened to the small slide (5) via a device which imparts the second linear to-and-fro movement to the thread guide (6). In the end position of the small slide (5), the thread guide (6) continues the linear fine movement, so that the thread is wound on the surface of the yarn body so as to be distributed over a length equal to the basic linear movement. <IMAGE>

Description

The invention relates to a yarn winding to be distributed on the surface of a yarn body, on the one hand in contact with the yarn body surface, joined together and comprising base layers repeated beyond the yarn body tip and a first length shorter than the yarn body length. angle to the yarn body surface ·

The invention also relates to a method of forming a yarn winding in which the yarn is wound around the yarn body while rotating it about its longitudinal axis.

Finally, the invention also relates to an apparatus for performing a method of forming a yarn winding on the surface of a yarn body rotatable about its own axis, which comprises a sled reciprocating with the first device along the first path at a first gear and a first distance parallel to the yarn axis. and a second device bent into a first device for periodically moving the slide relative to the first device to adjust the first reciprocating movement of the slide relative to the tip of the yarn body;

A method of winding yarn on cylindrical conical bodies c at a high linear velocity in the range of 600 to 1200 mmin is known, avoiding the accumulation of yarns over one and the same helix, respectively. the path on the surface of the yarn body, ie the so-called sheaves. This is achieved. sufficient density of the yarn with a smooth surface of the individual layers laid parallel to the surface curve of the yarn body. This is achieved by imparting a velocity to the reciprocating movement of the yarn guide by a wavy cheiralkliter, this velocity variation being

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200 322 the specified value does not reach zero.

This wavy nature of the yarn guide is maintained by varying the frequency as a function of the duration of the electric pulse, as the sum of the base and attenuation fluctuations, wherein. this pulse is transmitted to the reciprocating electric motor.

The ranges in which the periods of moderate and baseline variation of loses in this range vary from 0.5 to 5, respectively. from 0.25 to 2 min. In order to increase the linear winding speed and in order to maintain the same effect, namely to prevent sheaves, the biting periods determined in this way need to be reduced. “The reversal of the reduction is limited by the inertia of the moving masses, which implies that as the winding speed increases, the effect of removing the sheaves is practically reduced.

It is known that when the yarn is wound on conical bodies in which the individual winding layers are arranged one on top of the other at a inclination to the axis of rotation of the yarn body, clusters usually form at both ends of the conical surface. In these extreme positions, the velocity of the yarn guide moved by the eccentric should change from a positive value to a negative value, which according to the absolute value are equal to each other. This change is practically impossible to make without the crossing over the zero point of the yoke, i.e. through the dead position of the yarn guide. These dead positions of movement of the yarn guide in the accumulation of the yarns in the end positions of the cone, there is a risk that the individual windings will shrink or mix.

As the winding speed increases, the eccentricity also increases accordingly. This means that this drawback is more pronounced due to the wide range in which the speed changes from a positive value to a negative value at the end positions of the yarn guide. This results in a longer period of time required for this change.

The speed increase according to the known prior art is also limited in construction, since considerable inertial forces are generated by the eccentric device for reciprocating the yarn guide.

As a result of using the prior art, a yarn winding is obtained in which each winding layer completely overlaps the preheating layer. In such a yarn winding, the winding of the last layer is not running along the yarn body. This - causes the winding of the bottom layer to be spaced and exposed. At higher separation speeds of such yarn windings, the yarn maaterial jumbled unevenly.

The object of the invention is to provide a stable yarn winding at high winding speeds, irrespective of the position of the individual layers on the surface curve of the yarn body, to provide a yarn winding method and a device for performing the yarn winding method.

According to the invention, the object is solved by winding a yarn in which each yarn surface of the yarn body The inclined base layer is made up of a plurality of micro-shells that are shorter than the length of the base layers and rectified at a second acute angle different from the first acute angle of the yarn body. the bottom of the base layer includes a defined area while the microlayer of the top of the base layer also includes a defined area within it.

According to the invention, the object is also achieved by a method of forming a yarn winding in which the yarn is displaced in the longitudinal direction on the surface of the yarn body from a cyclically inserted first basic linear return movement of the yarn to a first distance and first nx. shifts the basic linear reciprocation forward

200 322 over a specified distance in the direction behind the yarn body tip, and cyclically inserting a third auxiliary reciprocating yarn travel in the longitudinal direction at a second distance that is shorter than the first distance and not a second speed stage that is higher than the first speed stage.

Finally, according to the invention, the object is also achieved by a device for performing a yarn winding method, in which the oscillating yarn guide is arranged in rigid connection with the carriage for a third auxiliary return movement of the yarn.

The excursion of the additional linear micro-reciprocating movement takes place in the range from 3 to 30 mm depending on the yarn windings and the speed of their unwinding.

The frequency of the additional linear reciprocating motion is up to 60 s.

The yarn winding according to the invention is characterized by a structure which allows the subsequent technological processes to run perfectly.

The method and apparatus of the present invention provide a yarn winding with periodically repeated base layers, each of which is formed from a flake-like microlayer.

An advantage of the method according to the invention is that in the end dead positions of the carriage, the yarn guide continues the additional linear microcircular movement while placing the yarn on the body surface in a length corresponding to the oscillation of the reciprocating movement. From the base layer thus formed, consisting of flake-like micro-layers, the length of the non-fixed windings is equal to the windings of the last part of the micro-layer.

By increasing the speed of the transverse yarn movement, as the sum of the two linear reciprocating movements, a considerable increase in the linear winding speed is achieved. This is equal to the vector sum of the transverse movement speed of the yarn guide and the linear peripheral speed of the yarn body.

The invention will now be described in more detail with reference to the drawings in which: FIG.

Fig. 1 shows a schematic representation of the method according to the invention, Fig. 2 shows the linear return of the yarn with respect to the rotating yarn body, Fig. 3 shows the position of the base winding layers corresponding to the full cycle of the basic linear return of the yarn. 6 and 7 separate micro-layers corresponding to the full cycle of the additional linear micro-reciprocating movement of the yarn guide of FIGS. 4 and 5 as the carriage moves forward, and FIGS. the same cycle when the carriage moves backwards.

The yarn 7 passes through the equalizing conductor 8 and extends through another conductor 6, which performs an additional linear micro-reciprocating movement with a swing AB. This movement involves winding lengths in a single layer.

As the slide 5 moves from point A to point V and back, which corresponds to one base layer 10, the yarn guide 6 moves several times with oscillations OD OD, D ^ C ^; C * D ^, D ^ C. * If the direction of the additional linear microcurve motion with CD swing is equal to the direction of the basic linear reciprocal motion with swing AB, BA ^, the yarn se shifts with CD,, D ^ C ^ which It is larger than the CD flip. Both movements do not coincide, the yarn 7 is shifting with an oscillation D ^ C ^, C * Dp which is smaller than the oscillation CD.

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The frequency of the additional linear reciprocating motion must always be greater than the frequency of the basic linear reciprocating motion in order to obtain a flaking arrangement of the individual microlayers 13, 16 corresponding to the full cycle. be within 60 s of choice ”1.

The additional linear micro-reversal motion has an oscillation of 0D in the range of 3 to 3C mm, and the 0D is always smaller than the oscillation AB, BA ^ of the basic linear reciprocating movement.

The yarn guide 6, which performs the additional linear microcurve movement, is carried by the carriage 2, which performs a basic linear reciprocating movement.

The carriage 5 is mounted on the threaded part 4 of the screw 2 · This is mounted on the sliding bearing 1 and kinematically connected to the eccentric 2 ·

The yarn winding 7 is composed of the basic layers 1C, which are formed as a result of one full cycle of the basic linear reciprocating movement of the carriage 5 and by tightening the screw 2 at a certain stage periodically moves forward towards the yarn body tip. ·

As the slide 2 moves forward, the lower part 11 of the base layer 10, defined by points A, A; B, B · Upon movement of the slide 5, the upper part 12 of the base layer 10 is formed by the points B, Α-j B, aA Each base layer 10 is formed of micro-layers 13 · 16 ·

The micro-layers 12 of the base portion 11 of the base layer 10 comprise an area 14 defined by the return points 0, D in the direction of the basic linear reciprocal movement and the additional linear micro-reciprocal movement, and the area 15 delimited by the restoring points D1 · Cl *. directions ·

The layer 16 of the topsheet 12 of the base layer 10 comprises an area 17 defined by the return points D1 and Cj in accordance with said directions, and an area 18 defined by the return points C1 * D1 in their mismatch.

BEFORE THE INVENTION

Claims (3)

BEFORE THE INVENTION A yarn winding to be distributed on a surface along the yarn body, on one side in contact with the yarn body surface, joined to the yarn and comprising base layers repeated at the yarn body tip with a first length shorter than the yarn body length and directed below the first at an acute angle to the surface of the yarn body, characterized in that each slanted base relative to the surface of the yarn body. the layer (10) is made up of a plurality of fissured-arranged microlayers (13, 16) whose length is shorter than the length of the base layers (10) and directed at a second acute angle different from the first acute angle to the yarn body surface; , 16) within the area (14,15,17,18) delimited by one olive's vortex points (Ι, ^, Ι ^ ιΙΐ ', ^' βΐ * ^) · 2. A method of forming a yarn winding according to item 1, wherein the yarn is wound around the yarn body while rotating it: about its longitudinal axis, characterized in that the yarn moves in the longitudinal direction on the surface of the yarn body from the path of the cyclically inserted first basic linear return movement of the yarn to a first distance and to a first gear, the periodically acting second reciprocating movement a basic reciprocating movement over a specified distance in the direction beyond the tip of the yarn body and by cyclically inserting a third auxiliary 200 322 reciprocating movement of the yarn in the longitudinal direction to a second distance that is shorter than the first distance and to a second gear that is greater than the first gear. 3. An apparatus for carrying out the method according to item 2 for producing a yarn winding according to item 1, comprising an eccentric and a carriage bolt, characterized in that a knitting conductor (6) is arranged in rigid connection for the third carriage (6). the auxiliary reciprocating movement of the yarn (7). 9 drawings