WO1991004806A1

WO1991004806A1 - Device accepting at least two reels

Info

Publication number: WO1991004806A1
Application number: PCT/EP1989/001161
Authority: WO
Inventors: Johannes Katz
Original assignee: Maschinenfabrik Niehoff Gmbh & Co. Kg
Priority date: 1988-03-30
Filing date: 1989-10-04
Publication date: 1991-04-18
Also published as: DE3810876C2; DE3810876A1

Abstract

Device for accepting at least two reels each supported on a spindle for winding or unwinding wound material in which a first reel is allocated to a second. The spindles of the two mutually allocated reels are horizontal and mutually aligned and are at such a horizontal distance apart that the first or second reel may be removed from or placed on the spindle while the other is winding or unwinding.

Description

Device for receiving at least two coils

The present invention relates to a device according to the preamble of claim 1.

Such devices are used to winding material such. B. winding or unwinding wire on spools. Typical areas of application are e.g. B. the winding of wire, which is manufactured in a wire drawing device or the unwinding of wire, which a further treatment, for. B. should be supplied ackierung.

A basic problem of such applications is that the process of wire production or wire processing is generally a continuous process which must not be interrupted for manufacturing reasons. As soon as the coil is full or empty, depending on the area of application, it must be exchanged for another coil. This exchange process naturally takes a certain amount of time. The devices mentioned at the outset must therefore be such that the winding or unwinding process can be rerouted from a first to a second spool without wasting time.

This problem is usually solved in that, e.g. B. during unwinding, the end of the winding material located on the first spool is connected to the beginning of the winding material on the second spool, and then, as soon as one spool has become empty, the unwinding process on the other spool begins. The first spool can then be exchanged while the second spool is unwinding (or winding).

Constructively, this basic idea is z. B. realized in such a way / that the holding mandrels / which take up the spools / are designed to be pivotable and pivot from their winding or unwinding position into a changing position / if the spool change is to take place. Although such devices work satisfactorily / for many applications there is a need / to have an alternative design of such a device available.

The present invention is therefore based on the object / to provide such an alternative device / which requires as little construction effort as possible and which in particular enables simple automation of the process of changing the spool.

This object is achieved by the subject matter of claim 1. Advantageous embodiments of the invention are the subject of the subclaims.

The present invention provides a very simple possibility / to arrange coils assigned to one another in such a way that the transfer or withdrawal of the wire from one coil to the other coil takes place in a particularly simple manner. As is generally customary, the holding mandrels are mounted in a floating manner and are held on one side in a supporting frame. Since the distance between the mandrels is correspondingly large / the coil to be replaced can be removed from the device / without the winding or unwinding process of the other coil being impaired.

The alignment of the holding mandrels aligned with one another makes it easier to pull off or wind up both spools alternately and to control the corresponding mounting or removal positions with an automatic handling device. The design effort is reduced by the omission of pivoting devices. It is sufficient that the holding mandrels are kept flying on the side facing away from each other / in a supporting frame. A special device / for changing the position of the holding mandrels is generally not required.

According to a preferred embodiment of the invention, the coils are rotatably mounted. This makes it possible to take off the winding material overhead.

This non-rotatable design can, for. B. can be achieved in that the coil with its flange on the side of the mandrel, which is mounted in the support frame / is rotatably fastened. Another possibility is to fix the coil on the mandrel by positive or non-positive locking with means familiar to the person skilled in the art.

According to a further preferred embodiment, the coils are rotatably mounted. This rotatable mounting can be achieved / in that the holding mandrel is designed to be non-rotatable and has a sleeve / which is rotatably mounted on the holding mandrel. Of course, the storage can also take place in the coil itself. According to another embodiment, the mandrel is itself rotatable / so that the spool rotates with the mandrel. The rotatable mounting of the coils is particularly suitable for the tangential winding and unwinding of the winding material.

According to a further preferred embodiment, the last-mentioned embodiments can be combined with one another, ie the coil bearing is designed in such a way that the coil is optionally mounted in a rotationally fixed or rotatable manner. This has the essential advantage that both the tangential winding and unwinding of the winding material can be carried out with the same supporting frame / as well as the axial take-off or the axial winding. The variable coil storage can be achieved in different ways. So z. B. basically a rotatable mounting of the coils can be selected and the coil can be rotationally fixed, for. B. be attached to the support structure / if kei¬ ne rotational movement is desired. A further possibility is to design the holding mandrel with exchangeable sleeves, which are arranged either in a rotationally fixed or rotatable manner with respect to the holding mandrel. Finally, another possibility is to replace the mandrel itself.

According to a further preferred embodiment, the spool is driven by a motor at a variable angular velocity, if a rotatable mounting is provided. Such a drive can not only be used for tangential winding / it is also still possible / to drive the coil during tangential take-off / so that the wire is not overstressed. This is of great importance particularly in the case of thinner wires. The motor can also be used as a brake.

The motor driving the spool when corresponding locking means are provided / can also be designed so / that the coils wer¬ prevented its rotation about the drive to ^'the / so that then results in a rotationally fixed mounting.

According to a further preferred embodiment, the device has at least one flyer with which the material to be wound is removed or wound up.

According to a further preferred embodiment, wire brushes are provided on the side of the coils / on which the wire is removed. This embodiment is preferably used / to pull off the wire axially. The wire brushes cause a braking movement when pulling off / which promotes a clean pull-off.

According to a further preferred embodiment, the coils are provided with jackets. Such Sheaths are particularly advantageous / if higher speeds occur / since the safety problems resulting from the centrifugal forces are substantially reduced. The jackets are designed so that they are adapted to the respective area of application of the device. For example, bag-shaped sheathing will preferably be used for an overhead discharge.

A particular problem is to design these sheaths in the device according to the invention so that the change of spool is not hindered by the sheath. Here, the invention proposes two alternatives.

According to a first preferred embodiment, the casing is connected in an articulated manner to the supporting structure or to a holding device fastened to the supporting structure. The device can then be folded away / to enable the bobbin to be changed. It goes without saying that consideration must be given to the special circumstances of the pulling-off process.

The direction / in which the casings are folded away depends on the structural design of the entire device. A possible / advantageous design is e.g. B. folding the sheath up or to the side.

According to a further / preferred embodiment, the casing is designed to be divisible. Here, too, the sheathing can be constructed in the form of a bag in the case of an overhead take-off. The sheathing then has a parting joint / which is designed / that it can be opened so far / that the coil can be removed therefrom or inserted into it.

The device according to the invention is particularly suitable for carrying out continuous unwinding and winding up of material to be wound. However, it should be noted that the device can also be used for discontinuous winding and unwinding. The device is also suitable beson¬ DERS to _/ build shelf-like winding systems. For this purpose, a multiplicity of the holding mandrels / two of which are assigned to one another in the sense of the invention / can be arranged like shelves. It is a further advantage of the invention / that such a system can also be constructed / that at the same time different spool sizes and even different forms of withdrawal can be used in parallel.

Another advantage of the device according to the invention is that the coils can be changed automatically, in particular in the case of a rack-like structure / by an automatic handling machine. The handling machine is then programmed so that it moves to the individual coil positions / detaches a full or an empty coil and then exchanges them for a correspondingly empty or full coil.

Further advantages / features and possible uses of the present invention result from the following description of exemplary embodiments in connection with the drawing.

In it show:

1 shows an embodiment of the invention, in which a total of twelve mandrels are provided, each of which is assigned in pairs.

Fig. 2 shows an embodiment in which different

Deduction types and a casing are realized;

3 shows a side view of the embodiment according to FIG. 2.

Fig. 4 shows a detail of an embodiment with a rotatable mounting of a coil. 1 shows a first exemplary embodiment of the device according to the invention. In this exemplary embodiment, a total of twelve holding mandrels are provided / of which the holding mandrels 1 and 2, 3 and 4/5 and 6, 7 and 8/9 and 10 as well as 11 and 12 are assigned to each other. In this exemplary embodiment, the axes of the holding mandrels are located in a common vertical plane. The associated mandrels are aligned horizontally to one another. The holding mandrels are held in a supporting frame / which is formed by the vertical struts 15, 16, 17 and by the horizontal struts 18, 19, 20. It should be pointed out / that the illustration in FIG. 1 has only a schematic character / the detailed design of the supporting structure etc. does not pose any difficulties for the person skilled in the art in pursuing the specified inventive teaching / so that a more detailed discussion can be dispensed with .

The exemplary embodiment shown serves for the removal of wire / the coils being mounted in a rotationally fixed manner / and the removal taking place overhead. The take-off rollers 30/31 are shown schematically between the coils. A wire brush 32 is also shown on individual coils and serves to improve the draw-off from the coil.

The individual coils have different states. The coil 40 / which is located on the mandrel 1 is shown empty here / the coil 41 is filled. The spool 42 facing the mandrel 3 is being removed by the mandrel. This removal process is only shown schematically here. It can be seen / that the space between the coils is sufficient to remove the coil from the holding mandrel. It goes without saying that additional devices / as in this case the rollers 30/31 must be taken into account when dimensioning the space required for removing the spool.

The spool 44 / assigned to the mandrel 5 is in the state / before it is pushed onto the mandrel. The coils 46 and 47 are in the state / in which described continuous withdrawal of the wire is possible. As can be seen from the drawing, the beginning 33 of the wire wound on the coil 46 is connected to the end 34 of the wire wound on the coil 47. According to an embodiment to be preferred, the horizontal support 16 is provided, at least in this region, with a groove or is designed in the form of a groove in order to receive the wire between the coils. This has the advantage that the wire cannot get tangled with other parts of the framework. The coil wire 35 is drawn off over the rollers 36 and 37, a wire brush being used in each case. In the other stations there are empty wire spools, namely the wire spool 48 on the mandrel 9 and the wire spool 49 on the mandrel 10, as well as the spool 50 on the mandrel 11 and the spool 51 on the mandrel 12. From the broken line of the spools 50 and 51 it can be seen that it is also possible with this device to change both coils at the same time.

FIG. 2 shows an embodiment that is similar to the embodiment shown in FIG. 1. Here, however, the coils 62, 63 located on the mandrels 60, 61 are covered by jackets 64, 65. On the left side of the figure it can be seen how the casing can be folded around the pivot point 66. The dash-dotted lines show the

Intermediate position and the end position of the folding process. As can be seen from this illustration, the sheaths, designed in this case in the form of bags, are dimensioned such that they can be folded away from the coil without the sheath colliding with the coil flange 67 or the wire brush 68.

2 shows that motors 70, 71 can be used to drive the coils 72, 73. The drive takes place via a belt 74, 75, the corresponding pulleys being arranged in a known manner on the motor shaft and on the spool flange. A flat belt or a toothed belt is preferably used as the drive belt. When using toothed belts, the pulleys must of course be designed accordingly. Since the transmission ratio of the drive is constant in the given case, the drive motor itself is equipped with a speed control. This is preferably done by the

Using an externally excited DC machine, which is controlled by a thyristor control.

FIG. 3 shows the embodiment according to FIG. 2 in a side view. One recognizes the motor 71, which is connected via the belt 74 / to the pulley 76 of the spool. Furthermore, one recognizes / that the wire is guided over the rollers 77, 78 and 79 in this case. The roller 79, as a so-called dancer roller, causes an even tensile load on the wire.

3, the position of the casing 65 in the opened state can also be seen in broken lines.

Fig. 4 shows the inclusion of a rotatably mounted coil. The holding mandrel 80 is provided with a flange 81 with which the corresponding unit can be attached to a supporting frame, as shown in the previous figures. A sleeve 82 is arranged on the holding mandrel and is rotatably mounted relative to the holding mandrel by means of roller bearings 83 and 84. The sleeve is axially fixed in a suitable manner (not shown).

Such a unit can be easily assembled and disassembled on a support frame. This makes it possible / e.g. B. to quickly change the mandrels for different coil sizes or in a simple manner from a rotatable bearing, as z. B. for a tangential trigger is required to come to a non-rotatable mounting, as is usually used for an overhead trigger.

Since in the case of the tangential take-off and in the case of the tangential take-up there is always a drive machine which is generally not required for the overhead take-off, the exchangeable unit can also be equipped with a corresponding one Drive machine be provided. This can e.g. B. be a direct current machine which is connected to the bearing module in such a way / that the rotatable sleeve 82 drives via a pulley. In this case, the pulley is preferably arranged between the mounting flange of the holding mandrel and the space provided for the spool.

Claims

Patent claims

1. Device for receiving at least two coils, each mounted on a mandrel, for the continuous unwinding or winding of metallic strand material, such as covered or uncoated wire, wire bundles, wire strands and the like, the receiving mandrels being fastened to a supporting frame, and one in each case a second coil is assigned to the first coil as a reserve coil and vice versa,

characterized ,

that the mandrels (1, 2) of the two coils (40, 41) assigned to one another are arranged horizontally and in alignment with one another and that both mandrels (1, 2) are at a horizontal distance from one another which is dimensioned such that the first or The second spool can be removed from the mandrel or placed on the mandrel while the other spool is carrying out the winding or unwinding movement.

2. Device according to claim 1, characterized in that the coils are rotatably mounted.

3. Device according to claim 1, characterized in that the coils are rotatably mounted.

4. The device according to at least one of the preceding claims, characterized in that the Coil mounting is designed in such a way that the coils are arranged in the device in such a way that they can rotate and are non-rotatable, for example by changing the holding mandrel.

5. The device according to claim 3 or 4, characterized gekenn¬ characterized in that the coils are driven at a variable Winkelgeschwin¬ speed by a motor.

6. The device according to at least one of the preceding claims, characterized in that the device has at least one flyer for drawing off or for applying the strand material.

7. The device according to at least one of claims 1 to 5, characterized in that wire brushes are provided to improve the deduction of the strand material.

8. The device according to at least one of claims l to 7, characterized in that the coils are provided with a casing (65).

9. The device according to claim 8, characterized in that the sheathing is articulated such that it can be folded away for attaching and detaching the coils.

10. The device according to claim 8 or 9, characterized gekenn¬ characterized in that the casing is designed to be divisible.

11. The device according to at least one of claims 1 to 10, characterized in that at least four mandrels are provided with at least four coils. .

12. The apparatus according to claim 11, characterized in that the axes of all mandrels are substantially in a vertical plane.

_c -

13. The device according to at least one of claims 1 to 12, characterized in that the mandrels are fixed in a fixed spatial arrangement on the support structure and do not perform any pivoting movement or the like with respect to the _{] Ω} support structure during the coil change.

14. Use of the device according to at least one of the

Claims 1 to 13 for peeling metallic

String material, preferably of metal wire with or without

__ insulation, wire strands and wire bundles. 15

0

5

0

5