DD297944A5 - DEVICE FOR PRODUCING A COIL-FREE BOND - Google Patents

Abstract

Method for producing a self-supporting bundle from strand-like material, this strand-like material being wound in a plurality of layers onto an essentially conical winding reel. The layers are inclined relative to the longitudinal axis of the winding reel. The first layer contains N1 turns, whilst the next layer, wound in the same direction as the first layer, contains N1 + DELTA N turns. The number of turns in each winding layer wound in the same direction is increased in the same way, until the total number of possible turns at the selected winding pitch is reached. <IMAGE>

Description

For this 4 pages drawings

Field of application of the invention

The present invention relates to a device for producing a spoolless bundle of stranded material, such as wire, insulated or non-insulated strands, glass fibers and the like.

In the processing of stranded Good, such as. As with wire, usually creates the problem that the further processing of the wire is not in place and often not in the operation in which the wire itself has been made. The rope-shaped material must then be prepared in a suitable manner for transport and brought to the processing site.

This is usually done by the winding material is wound on bobbins, which are then transported together with the winding material. Therefore, a large number of coils must be kept in the respective operations, which requires a considerable investment. Furthermore, the empty bobbins must be transported back from the processing station to the production plant, resulting in considerable costs. Finally, the coils also increase the transport weight of the winding material, which also brings an increase in transport costs.

It is therefore a desire of the relevant industry that strand-like good, such as. As wire, not wound up, but transported and delivered as a container, which consists essentially only of the actual string-shaped material itself. This type of gobinden is commonly referred to as a disposable packaged container.

Characteristic of the known state of the art

With DE-OS 3220195 a method for producing a disposable packaged container has become known.

In this known method, a conical winding coil is used. The strand-like material is then wound in individual, mutually parallel layers on this conical winding coil, wherein an adhesive is provided, which connects the individual turns and layers adhesive together. During further processing then the wire from the inside

deducted. '

This known method and the resulting container have a number of significant disadvantages.

The disadvantage is first the fact that an adhesive is needed for the preparation of the container, which makes the process complicated and expensive. Furthermore, this adhesive can lead to a disturbance of the further processing process and therefore u.U. be removed first.

In addition, it can lead to tangling of Drahtlagsn despite adhesive, namely, when the end of the withdrawal process between individual layers, the adhesive forces are exceeded, so that several turns fall at once down.

Object of the invention The aim of the invention is to eliminate the deficiencies mentioned.

Explanation of the essence of the invention

The object of the present invention is to provide a device for producing a bobbin-free container which is simple and inexpensive and can be produced with a stable, easily transportable and processable container.

This object is achieved by a device for producing a bobbinless container having a winding core 1, to which a first and a second flange is arranged, whose surfaces are arranged substantially perpendicular to the longitudinal axis of the winding core, and in which a laying device is used which feeds the strany-shaped material in a respective predetermined height of the reel spool, and which is characterized in that counters are provided which count the number of turns which are wound onto the winding core within a layer, and in that a comparator is provided, which produces an output signal as soon as a predetermined number N of windings is reached, this signal causing the direction of movement of the laying device to be reversed, and further comprising an adder adding thereto a predetermined value to the last counted number of turns, and thus the new out value N for the next winding layer.

The apparatus is further characterized in that the counters are pulse counting means which receive a predetermined number of pulses at each revolution of the reel spool and the laying means, respectively.

It is advantageous if in the winding core partially open to the winding channels are provided, which are distributed in the circumferential direction and extend parallel to the surface line of the winding core.

It is also advantageous that the axis of the winding core is arranged vertically during the winding process. But it is also possible that the axis of the winding core is arranged horizontally during the winding process.

With the device according to the invention a possibility for the production of disposable containers made of strand-like material is provided, which has considerable advantages over the methods known in the prior art. Due to the special control of the winding, it is possible to create containers which are formed in the manner of a double cone, so that the individual turns can be supported against each other. As a result, the structure of the container for transport is much more stable, without the need for an adhesive.

The container finished on the device according to the invention can be handled in a particularly simple and secure manner. So it is in principle possible to deduct the container both from the inside and from the outside. In the case of the internal withdrawal, the container is usually arranged so that the longitudinal axis of the container is vertical and the larger inner diameter of the container is located at the bottom. If this wire is then pulled from the inside, due to the given by the cone-shaped winding coil inclination each wire turn is supported by the underlying wire turn, so that the wire turns can not fall down.

Particularly advantageous but can also be applied here a Außenabzugsmethode, which also arranged with the known in the prior art containers with its longitudinal axis in the vertical direction, in such a way that the smaller inner diameter of the container is below. Subsequently, a pulley is placed on the container whose diameter is equal to or greater than the outer diameter of the container, and can preferably rotate. The rope-shaped material, d. H. z. The wire is then pulled "overhead", ie, it is passed past a disk Also in this form of withdrawal, the package is withdrawn so that the windings are mutually supported so that each turn is supported by a lower turn whose winding diameter is greater than the diameter of the previous turn, which prevents the upper turn from sliding downwards.

The container thus remains in external extraction in a very stable state, which makes it possible to interrupt the withdrawal process arbitrarily and resume without fear that will slip during standstill turns and the strand-like material thereby entangled.

The high stability of the container also facilitates the transport significantly.

The device according to the invention can be used for very different stranded goods. Mention is already the winding of wire, for which this device is particularly suitable. Furthermore, a high suitability of the device for the simultaneous winding of several twisted or untwisted wires was found. Fulfilling this requirement is a particular advantage of this device, since the simultaneous winding of several wires, which subsequently have to be unwound and separated again, plays an important role in wire manufacture today.

Furthermore, it is possible to wind up already finished strands and also insulated strands and similar cables with this device. In addition, glass fibers can be wound in this way.

embodiments

Further advantages, features and possible applications of the present invention will become apparent from the following description of exemplary embodiments in conjunction with the figures. Show Oarin

1 shows a schematic cross section through a winding device for carrying out the method according to the invention; Fig. 2: a schematic representation of the installation;

3 shows a container completed with the device;

Figure 4: the A oau of the different layers;

Fig. 5: the packaging of the container;

Fig. 6: the outer trigger of the rope-shaped material without auxiliary device;

Fig. 7: the outer trigger of the rope-shaped material with a special device;

Fig. 8: the trigger using multiple containers and

9 shows the arrangement of several containers during transport;

Fig. 10: the inner trigger of the rope-shaped material.

The operation of the device according to the invention and the structure thereof are described by way of example with reference to FIGS. 1 to 4, wherein the embodiment is provided with a rotating winding spool. The device consists of the actual winding core 1, which is conical in shape and has a cone opening angle, which is indicated schematically by 2. The winding tool further has a first flange 3 and a second flange 4, wherein both flanges are arranged perpendicular to the longitudinal axis 5 of the winding tool. The two flanges are disc-shaped and have no conical surfaces. The second flange 4 is removable, so that the winding tool can be removed from the finished container. Furthermore, the winding tool is preferably designed to be divisible in order to simplify the Herauc lead the winding tool.

On the winding tool, a thin shell 10 is applied, which is adapted to the contour of the winding tool, and which, for. can be made of paper. This thin shell 10 remains after the completion of the container and increases its strength during transport or external withdrawal.

The laying of the strand-like material, in the present case a wire, begins at the flange of the reel spool, which is arranged on the part of the reel spool which has the smallest diameter. The wire 12 is initially guided loosely over the second flange 4 for reasons which will be described in more detail below, the laying then begins with the wire winding 20, which represents the first guided to the reel spool winding. The laying is carried out with a laying roller 21, which is controlled up and down moves, and which supplies the incoming substantially constant-speed wire 13 of the rotating winding spool. The control of the laying roller 21 can best be seen in FIG. The laying begins with the laying of the layer L ₁ , wherein in the present case 4 turns are wound in the direction of the arrow 22. Subsequently, the laying roller 21 reverses its direction of motion and winds 4 turns back, forming the layers L, _b . The winding number Ni is thus 4. Subsequently, the layer L _{2 is} wound, wherein the number N _{2 of} the turns from the equation:

N _x = N, - 1 + ΔΝ

calculated. In the present case ΔΝ = 4, ie coincidentally equal to the number N _{1 of} the first layer L ₁ . The layer L ₂ , therefore, contains 8 windings which are wound in the direction of the arrow 22, the layer L _2b then also contains 8 windings, which are wound in the direction of the arrow 23. The next layer L ₃ , then N ₂ + ΔΝ = 8 + 4 = 12 windings, the position U, not shown, then would have 16, the position L ₅ , then 20, etc. The number of windings is thus at each new, in the same direction wound layer, increased by a constant amount. Of course, one could also vary this amount, if this is more advantageous for the construction of the container.

The continuation of the winding process is best with reference to FIGS. 3 and 4 clearly. The laying process is continued in the manner described, until finally the number of turns is so high that the opposite first flange 3 is achieved with the windings. Once this point is reached, the following layers are wound with the same number of turns, resulting in parallel layers of wire. This course of the windings is shown schematically by parallel dashed lines 25 in FIG.

The winding of the parallel layers is continued until the outermost edge of the second coil flange 4 is reached. Subsequently, the winding process can either be terminated, or it can be continued, in which now a respective reduced number of turns, practically reversed as at the beginning, are applied, so that the container receives an outwardly cylindrical shape. The end of the wire 26 is then returned in a few turns 49 with a great slope to the starting point of the winding process and is then adjacent to the beginning of the wire 12. The schematic structure of the wire winding is best seen in Figure 4. The wire container consists of an inner part 40 which is biconical shaped, d. that is, it conically narrows inwards and widens conically outward. This biconical shape has the significant advantage that when unwinding, when the wire reaches the inner, always critical during the unwinding layers, the diameter of the windings, in the upright condition of the container, extended downwards, regardless of whether from the inside or removed externally. In this way it is z. B. possible to create containers as a commodity that do not need to dio specific conditions at the customer, whether there is an internal or external withdrawal, take into account.

After this biconical part 40, a parallel-running part 42 is present in the illustrated embodiment, the diameter of which also increases downward. It should be noted that this parallel part 42 can of course also be omitted, it is readily possible to build the container only from the biconical part 40.

At the parallel parts 42, then the area 43 connects, in which the layers are arranged so that there is a cylindrical outer shape of the container, this can, for. B. can be achieved, in which the winding process, which led to the production of the first part of the winding, is exactly reversed. Of course, this part of the winding can be omitted. In Fig. 5 is a ready to ship container, which has been produced with the device according to the invention shown. The container has a cardboard sleeve 10, which gives it additional stability to the inside. Furthermore, an outer shell 50, z. B. a plastic film is provided, which protects the container during transport from dirt. An additional stability for the transport is achieved by strapping 51, which are wrapped around the container, as shown in FIG. 5. In order to facilitate the application of these strapping, corresponding channels are already provided in the winding spool. Furthermore, extending in the circumferential direction plastic or steel bands 52 are provided, which continue to give the container stability.

Fig. 6 shows how the winding material can be removed from the container without using a device. Diej happens by the container is positioned upright, so that the smaller diameter of the container points down. The wire 56 is then pulled off, preferably by an eyelet, not shown here, upwards.

In the same way it is also possible to remove the finished container inside. However, in order to make the most of the effect of the double cone, the container is positioned so that the part with the larger diameter of the container points downwards. It is thus rotated relative to the illustration in FIG. 6 by 180 °. Such an internal trigger is shown in FIG. 10, in which case the wire 95 is withdrawn from the center 96.

FIG. 7 shows how the container according to FIG. 5 is pulled off using a device. In the cardboard sleeve 10 of the container, a take-off device 60 is inserted, which consists of a core 61 and a rotatable disc 62, which carries on its outer periphery a circular bar 64. The disk 62 is preferably rotatable.

The deduction then takes place via this disc, in which the strand-like material is pulled by an eye arranged in the axis of the container 65, which is not shown here with the trigger device.

As can be seen from Fig. 7, the individual turns are withdrawn successively, each subsequent turn in this region of the bundle having a larger diameter than the underlying turn. As a result, slippage of the turns down is avoided, and it can not come during the deduction, especially at a standstill of the withdrawal process, for tangling of the strand-like material.

It should be emphasized once again that the outer withdrawal of the container is the preferred deduction form in the containers produced with the device according to the invention, it is of course also possible and is also within the scope of the present invention, the wire according to the needs of the customer from the inside deducted.

In Figure 8 it is shown how two containers made with the device according to the invention are connected to each other to "jinen without loss of time transition from a first container 70 to a second container 71 to have.

FIG. 9 shows how several of the containers produced with the device according to the invention are made available for transport. As can be seen, the containers 90 can be provided on a pallet 91 for transportation without further aids. In order to give the Gebindo sufficient stability, in turn, Umreifungon 92 are provided, as already described.

In this method, as shown in Fig. 8, the outwardly guided end of the wire 12 is connected to the also outwardly guided end of the wire 26. As soon as the first bobbin 70 has been unwound, the unwinding process continues with the second container 71. In the same way, a third or fourth container can be connected.

Claims (5)

1. A device for producing a bobbin-free container, which has a winding core, on which a first and a second flange is arranged, whose surfaces are arranged substantially perpendicular to the longitudinal axis of the winding core, and in which a laying device is used, which the strand-like material in a respective predetermined height of the reel spool supplies, characterized in that counters are provided which count the number of turns which are wound on a reel on the winding core, and that a comparator is provided which generates an output signal as soon as a predetermined number N of windings, this signal causing the moving direction of the depositing device to be reversed, and further comprising an adder which adds a predetermined value to the last counted number of turns, and thus the new value N for the next one Defines winding position. 2. Apparatus according to claim 1, characterized in that the counting means are a pulse counting means which receive a predetermined number of pulses at each revolution of the winding bobbin or the laying device. 3. Device according to one of claims 1 or 2, characterized in that in the winding core partially open to the winding channels are provided, which are distributed in the circumferential direction and extend parallel to the surface line of the winding core. 4. The device according to at least one of claims 1 to 3, characterized in that the axis of the winding core while .D the winding process is arranged vertically. 5. Apparatus according to claim 1 to 3, characterized in that the axis of the winding core is arranged horizontally during the winding process.