EP0768126B1 - Method and device for minimizing the height of wire bundles - Google Patents

Abstract

The process minimises the height of a wire bundle (2) which is formed in a chamber (3) from a sequence of wire coils. The individual coils are first transferred from a roughly horizontal transportation direction, into an intake housing (4), and are then brought into a roughly vertical fall direction, prior to transfer to the chamber. The coils are subjected to an additional horizontal centrifugal motion during the fall motion, and the centrifugal force may be transmitted at least partially to the individual coils. The extent of the centrifugal motions which are exerted on the coils, may also have inner and outer limits.

Description

The invention relates to a device for collecting successive Wire windings in a bundle chamber to form wire coils, in which the individual wire windings from a transport device transferred to a stationary inlet housing and from this, deflected in the vertical direction of fall, a bundle chamber are passed, being between the inlet housing and the Bundbildekammer a wire guide housing is arranged over a speed-adjustable and radius-adjustable eccentric drive on one, the common longitudinal axis of the inlet housing and the bundle forming chamber surrounding, closed horizontal trajectory is drivable.

A known device of this type (JP-A 61 055 070), in which the successive turns of wire, from a conveyor coming to be handed over to a Bundbildkammer, whereby between the inlet housing and the bundle forming chamber to a vertical axis rotatable wire guide housing is arranged, via a speed-adjustable and radius-adjustable eccentric drive is driven. For radial adjustment of the eccentric drive the wire guide housing is rotating in one drivable ring carrier, adjustable transversely to the plane of rotation. A similar training (FR-A 2 595 674) has one Wire guide housing on that adjustable on a pair of support bars is arranged, the ends of which are mounted on rollers Ring carrier are connected, which includes a cable drive.

The ones that leave the inlet housing with these devices Spin movement acting on individual wire windings has the consequence that these wire turns to a larger than than the diameter determined by the inlet housing pushed outside and consequently either against the inner circumference the bundle chamber or pushed against each other. This creates tightly packed and in the bundle chamber minimized and stabilized turn packages.

With these collection devices it is only possible to Outer circumference of the wire turns in the wire guide housing formed image with reference to the scope of the wire bundle to be formed in the bundle formation chamber underneath adapting to change.

In the practical operation of such collection devices but showed that with steel wires, the turns of which depend on the temperature different spring back forces when impacting on the inner wall of the circumferential wire guide housing become effective and correspondingly different frictional forces cause and especially with wire windings from surface sensitive Steels therefore have to be adjusted in addition to the rotational speed the wire guide housing also its orbit a change that affects the laying pattern of the wire windings requirement.

The invention has for its object the known devices to improve so that with them such changes of the Laying picture of the wire windings are possible. This is achieved that the eccentric drive for the wire guide housing from two, opposite each other, from this projecting drive arms exists, at the free ends of the crank webs a crank mechanism are articulated, the angle adjustment and can be fixed with the crank pin of the other crank arm of the crank mechanism connected is. By adjusting the angle between The movement path of the Wire guide housing and thus the layout of the wire turns and also the outside diameter of the winding package forming the wire bundle vary by changing.

Figur 1

in schematisch vereinfachter Seitenansicht die Vorrichtung zum Zusammenführen von Drahtwindungen zu Drahtbunden in der Grund-Funktionsstellung,

Figur 2

eine der Figur 1 entsprechende Darstellung der Vorrichtung, jedoch in einer gegenüber Figur 1 um 90° phasenverschobenen Betriebslage,

Figur 3

eine der Figur 1 entsprechende Darstellung der Vorrichtung, jedoch in einer um 270° verschobenen Betriebslage, und

Figur 4

die Draufsicht auf die Vorrichtung nach der Erfindung.

In the embodiment shown in the drawing, the invention is described below. Show

Figure 1

in a schematically simplified side view, the device for merging wire windings into wire bundles in the basic functional position,

Figure 2

2 shows a representation of the device corresponding to FIG. 1, but in an operating position that is 90 ° out of phase with respect to FIG.

Figure 3

a representation of the device corresponding to Figure 1, but in an operating position shifted by 270 °, and

Figure 4

the top view of the device according to the invention.

It can be seen from FIGS. 1-3. that the Device 1 for collecting and collapsing winding packages or Wire bundles 2 essentially consist of three basic components, namely from a bundle chamber 3, an inlet housing 4 and a wire guide housing 5.

The bundling chamber 3 consists of a cylindrical shell section 6, for example in the form of a pipe section, the one with funnel-shaped inlet extension section 7 is provided. The inlet housing 4 has one cylindrical shell section 8, z. B. in the form of a pipe section to which a funnel-shaped widening upwards Inlet extension section 9 is firmly connected.

Finally, the wire guide housing 5 is of a cylindrical Sheath section 10, for example. A pipe section is formed and with a conically widening one at the top Inlet extension section 11 equipped.

The entire device 1 is the rear end one (in the Drawing not shown) wire winding transport device assigned an at least substantially horizontal transport level Has.

Bundle chamber 3 and inlet housing 4 of the device 1 are mounted stationary relative to the wire winding transport device and have a common, vertical alignment axis 12-12.

The wire guide housing 5 also has a vertical alignment axis 13-13, which is indicated in Figures 2 and 3, but which a more or less large set or predetermined lateral Offset or eccentricity 14 with respect to the vertical alignment axis Occupies 12-12.

In contrast to the bundle forming chamber 3 and the inlet housing 4, this is Wire guide housing 5 is not provided stationary. Rather it is with the lateral offset or eccentricity 14 of its vertical Alignment axis 13-13 around the vertical alignment axis 12-12 drivable all around in a between the inlet housing 4 and the Bundbildekammer 3 located height area arranged or housed.

It is also important in the device 1 that the clear diameter 15 of the cylindrical shell section 6 of the bundle forming chamber 3 is larger than the clear diameter 16 of the cylinder. Drischen jacket section 8 on the inlet housing 4th

While a device for Minimizing the height of wire bundles 2 has been described at the drive for the wire guide housing, for example formed by crank drives 5 a fixed or unchangeable track jury 21 passes through, the drive is shown in Figure 4, at from the wire guide housing 5 described movement path 21 can change.

The figure shows that the drive crank 22 of each crank drive 18a and 18b consists of two crank webs 23 and 24. there is the crank arm 24 on the crank pin 25 of the crank arm 23 held. With the help of a clamping device 26, the crank web can 24 relative to the crank arm 23 in different angular positions locked and locked, so that in turn by her worn crank pin 27 on correspondingly different crank radii around the drive shaft 28 of the respective drive crank 22 can rotate. Since the crank pin 27 of both crank mechanisms 18a and 18b each in rotary joint engagement with a rigidly on the wire guide housing 5 attacking drive arm 29 is held, the wire guide housing 5 a displacement movement along a trajectory 21 about the vertical alignment axis 12-12 mediated by the respective eccentricity of the crank pin 27 to the drive shaft 28 is dependent on both crank drives 18a and 18b.

Due to the adjustable eccentricity 14 of the crank mechanisms 18a and 18b according to FIG. 7, the diameter can be within certain limits of the respective winding package or wire bundle 2 vary. The density of the winding layers within the winding package or wire bundle 2 can be varied by varying the speed affect the crank mechanisms 18a and 18b.

Claims (2)

1. Device for collating successive wire windings in a coil forming chamber (3) into wire coils (2), in which the individual wire windings are passed from a transport device to a stationary inlet housing (4) and are passed, deflected in vertical downward direction, from this to a coil-forming chamber (3), wherein arranged between the inlet housing (4) and the coil-forming chamber (3) is a wire guidance housing (5) which is drivable by way of an eccentric drive, which is regulatable in rotational speed and adjustable in radius, on a closed horizontal curved path surrounding the common longitudinal axis (12-12) of inlet housing (4) and coil-forming chamber (3), characterised in that the eccentric drive for the wire guidance housing (5) consists of two mutually opposite drive arms (29) which project therefrom and at each of the free ends of which there is pivotably connected a respective end member (24) of a crank drive (18a or 18b), which is connected with the crankpin (25) of the other end member (23) of the crank drive (18a or 18b), which is drivable by electric motor, to be angularly adjustable and fixable.
2. Device according to claim 1, characterised in that for the same constructional length of the end members (23 or 24) the set angle therebetween is greater than 45° and smaller than 90°.

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