DE1774266C2 - Method and device for transferring the wire from the full to the empty reel during the continuous winding of wire - Google Patents

Description

The invention relates to a method and an apparatus for transferring the wire from the full onto the empty spool while continuously winding wire onto one of two rotating main spools each with a coaxial auxiliary coil and with axially parallel, stationary coil axes to which during the winding process with the formation of a loop of the wire to the main and auxiliary spool empty coil system brought in, clamped to the auxiliary coil and after reaching one for one Starting piece suitable winding length on the auxiliary spool is further wound onto the main spool.

Such a method has already been proposed by the earlier patent 74 357, according to which a any length of weld end can be provided. Here is one around the axis of each coil rotatable round trip provided with attached drum piece, which is also to be regarded as an auxiliary coil Ai The starting piece is clamped onto this auxiliary spool and any length of wire is wound up Ir In contrast to the present invention, the older proposal puts the wire on the auxiliary reel first and only thrown over the main spool after the initial piece has been wound up. Apart from that that this device has no Kapp or Schneidvor direction for the wire, but only egg Clamping device, no interface with a constant cross-section can be achieved with this probe the wire breaks at some uncertain slope between the two reels, i. h "that the wire zi both sides of the breaking point a far smaller one! Has cross-section and thus for many purposes, ζ. Ε for forwarding electrical current, becomes unusable. This older proposal has another disadvantage on, which consists in the fact that, especially with thin wires, the first turn on the main coil as a result of throwing the wire from the auxiliary spool onto the main spool over the spool flange not exactly into the The corner formed by the coil core and flange comes to rest rather than when the Wire, it touches the core for the first time at a more or less large distance from the coil flange Here the wire is from the upper flange edge to to the point of impact on the coil core only in a more or less steep incline and extremely be laid taut tension so that it is in the different layers through the formation when returning a wire coil bulging on one side is subjected to such a high tension that the wire can tear. In addition, one-sided wire accumulation creates an imbalance. This has to As a result, the winding process must be aborted or the torn wire end must be scrapped and that one then has to do without the welding end. Each of these measures is known to represent the The economic viability of the entire system is in question.

Furthermore, methods and devices have become known through the DT-AS 11 59 724, in which the Wire is first wound on an auxiliary coil coaxially arranged with the main coil in such a way that that when the desired winding of the main coil is reached, the turntable is rotated and the next Auxiliary coil is effective as a pulley. Apart from the fact that such arrangements are only for one closely limited wire diameter can be used, a Additional speed of the wound material, which is achieved by special means, namely by induction clutches as well as being compensated by a pendulum arm and roller. However, since these parts are not massless, it cannot be avoided that this causes shock-like forces to be exerted on the wire, which have a disadvantageous effect on the wire, especially if the wire usually has an annealing section before being wound up passes through. Just in the annealing zone, the wire is in a critical condition, so that it either is stretched or compressed. However, this means production scrap and shutdown of the plant at least for the time in which the defective piece of wire is removed and the two wire ends welded together again are. In many cases it can also happen that the in this way occurred Wire damage is not noticed at all, so that it is in the subsequent wire processing machine, z. B.

a stranding machine, introduced and thereby an inferior product is created, which is only can be used for subordinate purposes

In known wire reels for the continuous winding of wire on successive reels (US-PS 2932462), the overflow of the wire from a full reel to an empty one is achieved by means of a reciprocating guide which is actuated by a relay to the movement path of the deflecting the wire to the bobbin out on the surface of the wire collects Here, the catenary only be carried out when the guide is at the adjacent end flange of both the empty and the full reel, has moved past Apart from the fact that these known devices in building extremely complicated are, they cannot be used for devices with axially parallel coil axes at a distance from one another, but only for devices with coaxial drums.

It is also known (US-I ¹ S 23 41369) to guide the wire to be wound up first over a guide roller and then partially over the main spool and then over a deflection roller arranged to the side thereof approximately in the plane of the flange between the main and auxiliary spools, whose radial center plane is inclined to the flange plane. The deflection roller can be pivoted by 90 ° by means of an actuating device about an axis crossing its axis of rotation at an acute angle, so that the wire previously guided over the deflection roller aui the auxiliary coil runs off when the deflection roller is pivoted and is now exclusively guided by the guide roller and on the main coil is wound. A similarly acting device has become known from the German patent application 11 68 733. Both devices have in common that they are each Vollwickcln a single coil, in which the beginning of the wire at a standstill of the main and auxiliary coil on the auxiliary coil, z. B. by a wire lock, must be attached, ie that no continuous winding drive can be driven with them.

The US-PS 33 47 477 discloses an axially parallel and Fixed arrangement of the coil axes and the use of rollers rotatable around the bobbin axes for top guiding the strand material from the full to the empty bobbin, forming a loop between the two bobbins. The beginning of the wire is on the The core of the coil is wound crosswise and secured in this way. The beginning of the wire is therefore perfect inaccessible so that it cannot be welded together with other wire ends.

In another previously known double winding apparatus according to FR-PS 14 05 073, the two coils are not axially parallel, but axially aligned. Apart from the fact that this device does not have any auxiliary coils and therefore no wire end of any length can be created, a proper one cannot be used here either Winding up can be expected, as the wire is carried out with the help of a take-up roller attached to the swivel arm fed to a catcher disc and from here via the 6u Spool flange is thrown. In summary, even with this previously known device, no Characteristic can be determined, which aims at increasing the economy

The object underlying the invention is to provide a method with the help of a double spooler with axially parallel shafts, continuous operation can be maintained and at the same time the advantages of winding devices for single coils can be achieved, such. B. a practically any length and undamaged coil beginning, which allows the welding of wire ends. Furthermore, the device should be structured with a minimum of structurally simple and robust elements clearly and thus maintenance-simplified.

This task is done with. the characterizing features of claims 1 and 2 solved

This has the advantage that only unstretched, i.e. H. undamaged wire on the spool is properly wound up without the use of special devices, without the formation of dead ones Spaces or without the formation of one-sided wire accumulations causing an imbalance, which are a danger for a faster wear and tear for the one in question Spool bearings mean.

In the drawing is an embodiment according to Invention shown.

F i g. 1 shows a view of the winding device with the two parallel spool axes and F i g. 2 the corresponding plan view;

F i g. 3 shows the course of the wire when the transport arm is extended;

F i g. 4 shows the corresponding top view and FIG. 5 the corresponding side view; F i g. 6 shows a section along the line VI-VI.

The double spooler according to the invention consists essentially of the machine frame 1. in which the two main spools 2 and 3 are mounted so that their axes 4 and 5 run parallel at a distance from one another. The main coil 2 is on the a-side and the main coil 3 is mounted on the 6-side (Fig. 1). The main spool 2 is driven clockwise and the main spool 3 is driven counterclockwise. A pair of folding rollers 6 is arranged above the main bobbins and can be moved from the a-side to the ö-side and vice versa. The wire catchers 7 and 8 as well as the wire guide members 9 and 10 and the wire deflectors 11 and 12 are arranged in the space formed by the two main coils 2 and 3. Eccentric to the spool axes 4 and 5, a drum 15 or 16, driven for example by a geared motor 13 or 14, is mounted, which is firmly connected to a transport arm 17 or 18, respectively. At the free end of the transport arm, a roller 19 or 20 with a circumferential groove is attached, which can be pivoted about the drum axis 21 or 22. The pivoting path is limited by limit switches, which are shown in FIG. 1 are shown in the form of electrical Kontak'.stükken K, which are bridged at the ground of the pivoting path by a contact bracket Kb. Each main coil 2 or 3 is assigned an auxiliary coil 23 or 24, the core diameter of which can be the same as that of the main coil. The flange 25 or 26 of the auxiliary spools is smaller in diameter than the main spool flange, and on its side facing the main spool flange the fly knife 27 or 28 is attached, which is adjustable in a radially arranged angular hole 29 (FIG. 6) . With the help of the bracket 30 (FIG. 5), the wire is pressed into the catch plane of the fly knife and the cutting steel 31.

The mode of operation of the arrangement according to the invention is as follows:

As in particular from FIG. 1 and 2, the main coil 3 is almost full. The course of the wire

Dr can be seen in solid lines, that is, the wire Dr first passes the pair of folding rollers 6, which was brought to the a-side towards the end of the winding process of the main spool 3. From there, the wire Dr is pressed outward with the aid of the wire catcher 8 so that it comes to lie below the roller 19 provided with a groove. A wire deflector 12 is provided so that it does not slip off the full main spool 3. The wire guide member 9 is then extended in the form of a roller (cf. FIGS. 3 and 4) and the one shown in FIG. 3 shown in dashed lines roller 19 'is pivoted to its end position. The pivoting path is limited by the limit switch K or Kt (Fig. 1). In this way, the roller 19 has placed the wire Dr around the wire guide member 9 so that it protrudes over the common flange of the main and auxiliary spools. Via the roller 19, past the wire catcher 8 and the wire deflector 12, the wire initially continues to reach the main spool 3. This wire course is shown in FIGS. 3, 4 and 5 can be seen; it is only to be noted that the in F i g. The roller 20 shown on the transport arm IS in FIG. 3 has been omitted in FIG.

As soon as the roller 19 has reached the end position specified by the limit switching device K and Kb , the wire is pressed into the catching device of the fly knife 27 with the aid of the bracket 30 and cut on the cutting tool 31 (see FIG. 5). The wire Dr is then wound onto the auxiliary reel 23 until the wire guide member 9 is contrary to the position shown in FIG. 4 indicated arrow direction is moved back.

This process can be initiated and monitored, for example, by timing relays (not shown in the drawing). As soon as the wire Dr falls in a loop over the common flange as a result of the retraction of the wire guide member 9, the normal winding process begins on the main spool 2. At this point in time, the transport arm 17 with the roller 19 is moved into the position shown in FIG. 1 obvious starting position brought back. The wire catcher 8 also returns to its starting position. The full main spool 3 can now be removed and replaced by an empty main spool. After the main spool 2 has almost been filled, the turning roller pair 6 is shifted from the a-side to the ö-side, on which the process analogous to that described above for the a-side is now carried out.

For this purpose 3 sheets of drawings

787

Claims (2)

74266 Patent claims: I. Procedure for overhead guiding the wire from the full to the empty reel in continuous Winding of wire onto one of two rotating main spools, each with a coaxial auxiliary spool luid with axially parallel, stationary coil axes, to those during the winding process with the formation of a loop of the wire to the out «° Main and auxiliary coil, existing empty coil system brought up, clamped to the auxiliary coil and after reaching a winding length suitable for an initial piece on the auxiliary reel is wound onto the main spool, characterized in that the wire is directly then brought up to the core of the empty main coil by diversion around a wire guide member with the formation of a further one running from the main coil over the flange on the auxiliary coil side Loop led to the auxiliary spool there clamped, capped and after winding the desired wire length before the start of the wire laying process by axially retracting the Wire guide member dropped onto the main spool on the spool flange and then through axial laying is further wound up. 2. Double coil for performing the method according to claim 1, with two rotating main coils each with a coaxial auxiliary coil, with axially parallel, stationary coil axes, with one Clamping device and with a pair of folding rollers for bringing the wire to the empty one Coil system, characterized by the combination of the following features: a) one at its free end with a roller (19; 20), pivotable, eccentrically to the reel axis (4; 5) mounted transport arm (17; 18) whose pivoting path is limited by a limit switch (K; Kb) , and a parallel wire guide member (9; 10) retractable to the spool axis (4; 5) in the direction from the auxiliary to the main spool to form and release a further loop between the main and auxiliary spools (2,23; 3,24), b) one on the auxiliary spool (23; 24) arranged from a fly cutter (27; 28) and one Cutting steel (31) existing cutting device.