EP0869205A2 - Method for making different types of winding in particular a flyer winding - Google Patents

Abstract

To give wound bobbins of different types, especially a flyer or composite winding, the total lifting stroke of the ring rail is divided into at least two stroke sections to give at least two bobbin winding zones (I-III). Before the ring rail moves from one winding zone into the next, it follows several play movements, so that the spindle rotary speed can remain constant in the stroke section and be altered on moving into the next winding section.

Description

The invention relates to a method for manufacturing different types of winding, especially a flyer or Compound winding, variable in speed on one driven spindle in a draw twisting machine, whose ring rail is controlled in its lifting movements.

A state of the art already includes a method for changing the speed of spindles of a twisting machine (DE 41 15 186 C2). Here the speed of the spindles during each Stroke movement of the ring bench in relation to a basic speed changed that the speed with increasing distance between Delivery facility and ring traveler arrangement reduced and with increasing distance is increased. The spindle speed thus experiences depending on the thread balloon height or they determine the ring bench position along the entire stroke Change to include the thread tension in the thread balloon maintain an approximately uniform value.

To get this effect of getting an approximately even one Achieving thread tension in the thread balloon must be done during manufacture a so-called flyer winding with parallel winding layers or a so-called composite winding with over parallel a large range of lifting height, towards the ends the winding tapered winding layers the spindle speed with rising and falling ring bench constantly increased and be reduced. This results in a high expenditure of energy to accelerate and decelerate the spindles, the spindle drive is also significantly stressed.

The present invention is based on the object Reduce energy consumption and increase the service life contribute to the spindle drives.

This object is achieved in that the Total lifting height of the ring bench for the manufacture of at least two Winding areas divided into at least two stroke ranges the ring bench before moving into the others, preferably adjacent stroke range in the one stroke range executes several lifting cycles so that the spindle speed in this stroke range kept approximately constant and at transition changed in the other, preferably adjacent stroke range becomes.

This creates a process according to which the Total lifting height of the ring bench in several, at least two, preferably three adjacent areas is divided, in which the ring bench carries out several lifting games, before moving to another, preferably to an adjacent one Stroke range moves further.

Furthermore, by dividing the total lifting height of the ring bench for producing at least two winding areas in The advantage achieved at least two stroke ranges that the Duration of the total stroke is temporally stretched, causing the spindle speed during the longer time interval for thread tension optimization can be changed. This will also a material protection with lower total energy consumption reached.

The flyer winding also offers parallel winding layers the well-known advantage of the possibility of optimal spindle speed adjustment depending on the bobbin diameter. It will also have better thread running properties achieved.

In addition, the invention creates the possibility of both the composite component at the reversal points of coarser displacement measuring systems to be able to use as well as the education variable adjustable edge rounding. Through the realizable edge rounding results in one improved transport stability and on the other hand a larger one Degree of cops filling with blunt slopes, i.e. the realization a higher cop weight with the same cop diameter enables.

The height of the thread balloon changes during the lifting games the ring bank in each of the winding areas so little, that a change in the spindle speed according to the lifting height the ring bench can advantageously be omitted. The Spindle speed therefore remains during the lifting cycles of the ring bench the same in the individual winding areas and only needs when changing the ring bench into another, preferably an adjacent winding area to be changed. Hereby advantageously reduce the acceleration and Decelerations of the spindle speed are crucial.

The acceleration and deceleration processes of the spindle speed already decrease when the ring bench in each of the Areas only one lifting game, d. H. an up and down movement, executes. The decrease is the number of lifting games in the corresponding areas proportional. It will be in the Practice between three and about twenty.

It is advantageous for the winding areas to have approximately the same winding heights assign. It is also advantageous to adjust the height the winding areas as a fraction, for example as a To define third of the total stroke and that of the respective Total stroke. If the total stroke, for example, during manufacturing a flyer winding gradually diminished the winding heights of the winding areas accordingly.

In order to fall over each other at the joints of the winding areas or to avoid covering turns, it is in Another embodiment of the invention possible, the turns the joints of the areas by moving the reversal points to overlay. This overlay can be achieved that the lifting games of the Ringbank to be relocated or that the amount of lifting games Ringbank is reduced or increased.

Fig. 1

einen schematischen Schnitt durch einen Wicklungskörper mit drei Wicklungsbereichen in Seitenansicht;

Fig. 2

ein Hub-/Zeitdiagramm des Bewicklungsvorganges für den Wicklungskörper nach Fig. 1;

Fig. 3

ein Diagramm bezüglich des Verlaufs der Spindeldrehzahl über dem Diagramm nach Fig. 2;

Fig. 4

ein Hub-/Zeitdiagramm eines anderen Bewicklungsvorganges;

Fig.5

ein Diagramm bezüglich des Verlaufs der Spindeldrehzahl über dem Diagramm nach Fig. 4;

Fig. 6

eine Windungsart in Form einer reinen Parallelwicklung;

Fig. 7

eine schematische Darstellung der Verlagerung der jeweiligen unteren und oberen Umkehrpunkte;

Fig. 7a

die Einzelheit X nach Fig. 7;

Fig. 8

eine andere Ausführungsform der Windungsart in Form einer Parallelwicklung.

The invention is described below with reference to exemplary embodiments shown in the drawing. The drawing shows:

Fig. 1

a schematic section through a winding body with three winding areas in side view;

Fig. 2

a stroke / time diagram of the winding process for the winding body of FIG. 1;

Fig. 3

a diagram with respect to the course of the spindle speed over the diagram of FIG. 2;

Fig. 4

a stroke / time diagram of another winding process;

Fig. 5

a diagram with respect to the course of the spindle speed over the diagram of FIG. 4;

Fig. 6

a type of winding in the form of a pure parallel winding;

Fig. 7

a schematic representation of the displacement of the respective lower and upper reversal points;

Fig. 7a

the detail X of FIG. 7;

Fig. 8

another embodiment of the winding type in the form of a parallel winding.

Fig. 1 shows a section through a flyer or composite winding 1, which is located on a sleeve 2, which on a Spindle 3 is attached. The spindle 3 forms part of a Work place of a draw twisting machine, whose not closer Ringbank shown is controlled in their lifting movements.

As can be seen from Fig. 1, the total lifting height of the ring bench to produce three winding areas I, II and III in divided into three stroke ranges. The ring bench leads before moving on in the other, preferably adjacent stroke range II or III in one stroke range I or II several lifting cycles from, the spindle speed in this stroke range approximately kept constant and preferably in transition to the other the neighboring stroke range is changed.

This results in a flyer or composite winding 1 with the three winding areas I, II and III. In order to maintain this division into three, the winding regions are preferably double-conical with the cone shapes K ₁ , K ₂ , K ₃ and K ₄ . This is an alternative option; it is also conceivable that the middle winding area II also has, for example, a horizontal base or top surface.

FIG. 2 shows the stroke / time diagram of the winding process for winding bodies according to FIG. 1. The abscissa t defines the time, the ordinate H the stroke. As can be seen, first winding layers are applied in the winding area I z ₁ , then subsequently in the winding area II z ₂ , and then in the winding area III z ₃ winding layers. Subsequently, z ₄ winding layers are then applied in the winding area II and finally again in the area I z ₁ winding layers. As can be seen from FIG. 2, z ₁ , z ₃ each have n-turn layers, while z ₂ and z ₄ each define n / 2-turn layers. This results in a duty cycle R consisting of n, n / 2, n, n / 2 winding layers.

3 shows the course of the spindle speed n over the stroke / time diagram according to FIG. 2: When applying turns in area I, in which the thread balloon is large, the spindle speed n _{1 has} its lowest value. When winding in the central area II, it has an intermediate value n _z , according to which the spindle speed n _{2 is} highest in area III. It remains the same when winding in the individual areas I, II and III and changes, as can be seen from FIG. 3, only when changing from one area I and II or II and III to another adjacent area.

Since the average thread balloon height in the winding area I with increasing winding build-up decreased and in the winding area III increased accordingly, as shown in Fig. 3 from the dashed Lines L recognizable, a corresponding adjustment of the respective speeds at this value.

4 and 5 show another embodiment of the invention analogous to FIGS. 2 and 3: Here in the areas I, II and III applied z-turns each, so that the working cycle R consists of the three turn sections of equal size. The The number of winding layers is the same in all three areas.

According to FIG. 5, the speeds n ₁ , n _z , n ₂ are again present, after which the spindle speed n _{R is} reduced again to the starting point.

Fig. 6 shows a type of winding in the form of a pure parallel winding P with cylindrical overlapping winding layers in the respective areas I, II etc. The overlap takes place in zones Ü between the individual areas.

7 and 7a show the displacement of the respective lower one and upper reversal points U of the lifting movements of the ring rail 2. As can be seen, approach or the reversal points U move away due to the movement of the Ring bench in the individual winding areas I, II and III.

According to Fig. 8 there is also the possibility in the range limits B overlapping, winding-like winding layers to provide. Again, there is a type of winding in the form of a pure parallel winding P, which with cylindrical, itself overlapping winding layers in the individual areas I, II etc. is provided. 8, for example, is the distance between the shifting reversal points of the ring bench the same in areas I and II. By overlapping the lower reversal points of the ring bench movement on the embankments the windings occur during successive lifting cycles also a composite winding-like on the embankments Stratification.

The invention results in a method for manufacturing different types of winding, especially a flyer or Compound winding, in which a reduction in a simple manner of the energy required to drive the spindles and one Increase in lifespan is achieved.

Claims (15)

Method for producing different types of windings, in particular a flyer or composite winding, on a spindle driven in each case with variable speed in a draw twisting machine, the ring rail of which is controlled in its lifting movements,
characterized,
that the total lifting height of the ring bench for producing at least two winding areas (I; II; III) is divided into at least two lifting areas,
the ring rail executing several lifting cycles in the one lifting area before moving further into the other, preferably adjacent, lifting area, so that the spindle speed in this lifting area is kept approximately constant and is changed when changing to the other, preferably adjacent, lifting area. A method according to claim 1, characterized in that the lifting height of the respective lifting range is a fraction of the total lifting height. A method according to claim 1 or 2, characterized in that the individual lifting areas each have the same lifting height. Method according to claims 1 to 3, characterized in that the turns of the winding, in particular the flyer or composite winding, are superimposed at the transition points between two adjacent winding areas. A method according to claim 4, characterized in that the reversal points are shifted at the transition points. A method according to claim 4 and 5, characterized in that the lifting cycles of the ring bench which are constant in their lifting height are shifted. A method according to claim 4 and 5, characterized in that the height of the lifting cycles of the ring bench is changed. Method according to one or more of the preceding claims, characterized in that the top and the bottom winding area (I; III) each have a conical end and at least one winding area (II) lying between them has a horizontal or double-conical base and top surface. A method according to claim 8, characterized by a combination of conical and horizontal base and top surfaces. Method according to one or more of the preceding claims, characterized by three mutually adjacent winding areas ( I + II + III ) the winding, especially the flyer or composite winding. A method according to claim 10, characterized in that the lower winding area (I) from n-turn layers (z ₁ ), the middle winding area (II) from n / 2-turn layers (z ₂ ) and the upper winding area (III) from n- There are winding layers (z ₃ ), after which in turn n / 2 winding layers (z ₄ ) are applied to the middle winding areas (II) and the ring rail then returns to the beginning of the lower winding area (I) (FIG. 2). A method according to claim 10, characterized in that in each of the three winding areas (I, II, III) successively n-winding layers (z) are applied and the ring rail then returns to the beginning of the lower winding area (I) (Fig. 4). A method according to claim 10, characterized in that n / 2 winding layers (z ₂ ) are applied in all three winding areas (I, II, III), namely in the successive sequence, and the ring rail subsequently at the beginning of the lower winding area (I) returns (Fig. 7). Method according to one or more of the preceding claims, characterized by parallel winding layers with cylindrical, overlapping winding layers in the respective transition areas (Ü) between two adjacent winding areas ( I-II-III ) (Fig. 6). Method according to one or more of the preceding claims 1 to 13, characterized by parallel winding layers with cylindrical, overlapping composite winding-like winding layers in the respective transition areas (Ü) between two adjacent winding areas ( I-II-III ) (Fig. 8).

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