DE1521451C3 - Device for wire drawing and hot tinning of metal wires - Google Patents

Description

the lower part of the scraper always in the tin bath is immersed, but its upper part is outside the tin bath.

The invention offers the advantage that a regulation of the immersion depth of the deflection sector as well the height adjustment of the stripping nozzle takes place in such a way that the stripping nozzle is always in is in a position where its lower part is at the level of the weld pool. Through this it is achieved that the wiping nozzle has practically the temperature of the molten bath, but the one off The wire exiting the nozzle is outside the weld pool. This measure will a good distribution of the metal layer on the wire when it emerges from the bath can be achieved Avoid eddies on the melt pool surface. The measures of the invention do not lead to one expected effect on the quality of the tinning, that of the known devices achievable is clearly superior.

The deflection sector can consist of steel or sintered porcelain.

The system has the wire from the wire drawing device to receiving the finished wire moving drive device, which itself or through additional units is of such a nature that the progressivity taking into account the acceleration of the throughput speed of the wire when starting up the system the mechanical strength of the wire can be controlled.

Furthermore, at least one surface treatment trough is at the exit Rollers for the wire arranged in such a way that they are set in rapid rotation as the wire passes through and the the centrifugal force occurring here causes the removal of the liquid adhering to the wire, whereby baffles are provided on the rollers to collect and return the liquid.

For a more detailed explanation of the invention, a description of the illustrated in the drawings follows Working examples.

F i g. 1 is a schematic representation of the plant chain from the wire drawing device to the receiving device for the finished tinned wire.

F i g. 2 is an elevation of a treatment trough for degreasing, pickling or cooling;

3 is a vertical section of a treatment trough running perpendicular to the direction of passage of the wire according to Fig. 2,

Fig. 4 is an elevation of a sink trough;

■ F i g. 5 and 6 are longitudinal sections of the tinning trough in the working position and when pulling in the Wire,

Fig. 7 is a schematic representation of a modified embodiment of the complete Plant chain,

F i g. 8 shows a modified device for cooling the tinned wire.

According to the scheme of FIG. 1, the wire drawing machine 1 is followed by an annealing device 2. From the exit the .Glüheinrichtung 2, the wire 4 runs in troughs set up one behind the other for surface treatment. In the system shown, a trough for degreasing 5, a trough for pickling (pickling) 6 and a trough for rinsing 7 is provided. From the latter, the wire 4 runs through the tinning trough 8 and the cooling trough 10 for the receiving device 11.

The treatment troughs for degreasing 5, pickling 6 and cooling 10 can be similar, as in FIG F i g. 2 and 3 shown to be built. They consist of three main parts.

The lower container 51 contains the treatment liquid; the adjoining upper part 52 is closed by the access cover 52 α; the side chamber 53 is also through an access cover

53 a locked.

In the upper part a channel 54 is provided through which the wire 4, the delimitation slots 54 α and

54 b is traversed horizontally. The channel 54 is fed in excess with liquid from the motor pump 55 through the connection nozzle 54c located below via the line 56. The excess liquid flows through the slots 54 and α 54 b back into the reservoir 51st

In the side chamber 53 three guide rollers 57 a, 57 b and 57 c are arranged. The roles 57 α and

57 c are set so that the wire axis is almost tangential at the bottom of its running grooves. The roller 57 b is adjustable so that it can more or less depress the wire.

The rollers 57 a, 57 b and 57 c are set in rapid rotation by the passing wire, so that the liquid running off the wire is thrown away as a result of the centrifugal force. The liquid is thrown against the walls of the side chamber 53. The deflector plates 58 a, 58 b and

58 c prevent liquid thrown off from falling onto adjacent rollers. Over the sloping floor In the side chamber 53, the thrown-off liquid returns to the storage container 51.

The in F i g. The sink trough 7 shown in FIG. 4 is constructed in the same way as the troughs 5, 6 and 10. Its vertical section corresponds to FIG. 3. At the bottom it has the storage container 71 for the liquid, an upper part 72 closed with the access cover 72 α and a side chamber 73 closed with the access cover 73 α.

In the upper part 72 a channel 74 is provided through which the wire 4 passes horizontally, traversing the delimitation slots 74a and 74Z). The channel 74 is fed through the connecting piece 74 c located below from a motor pump corresponding to the pump 55 (FIG. 3) via the line 76. The excess liquid flows through the slots 74 and α 74 b back into the reservoir 71st

In the side chamber 73 only two guide rollers are provided b α 77 and 77 in this trough, which are arranged so that the wire 4 prior to leaving the tub 7 changes its direction twice. The deflector plates 78 a, 78 b and 78 c prevent the thrown-off liquid from reaching an adjacent roller. The thrown off liquid flows back to the storage container 71 via the inclined bottom of the side chamber 73.

Can movement, the adhering liquid into the trough repel ^a nozzle 7.9 is placed on the exit side of the wire 4 from the trough 7, the compressed air stream with a countercurrently to Drahtbe.

The tinning trough 8 is per se a normal tinning trough of shallow depth with the usual ones Devices for heating and thermal insulation. In addition, the tinning trough has the

5 6

FIGS. 5 and 6 show two devices, the lower end of the tunnel 91 is extended

of which one with 81 and the other with 91 move through the rod 95, which is in the working position

is drawn. the stop cam 90 of the carrier 81 d rests.

The device 81 consists of an on top of the tunnel 91 has a pipe feed 96.

Trough 8 fixed support 81 a, a plate 81 b, 5 dimensions and shape of the tunnel 91 are so

chosen around a mounted on the support 81 α axis 82 that the lower, remaining part in the

pivotable and immersed in the tin bath by the counterweight 81 c. The remaining parts are

Equilibrium is kept and one for regulation closed except for a slot for the entry of the

tion of the immersion depth of the height-adjustable support wire 4.

81 d, through the arms 83 α and 83 b with the io The pipe feed 96 is used for continuous

Plate 81 b is connected. The arms 83 α and 83 b blowing in an inert gas, which is then through the

are around the wire entry slot fixedly arranged on the support 81 d can escape. To this

Axes 84 α and 84 b and around the plate 81 b way, the wire is constantly surrounded by inert gas,

fixed axes 85 α and 85 b swivel until it enters the tin bath. This will reduce

bar. 15 avoided that through on the surface of the bath

The arm 83 α extends upwards to a layer of the air entrained by the wire

Operating lever, for the adjustment of which the forms on the oxidation products and the like,

Toothed sector 87 acting handle 86 to insert the wire 4 through the tunnel 91

is made. The toothed sector 87 is with the plate and on over the I Jmlenksektor 88 and through the

81 b firmly connected. 20 stripping nozzle 89, the tunnel 91, as in FIG. 6th

The course of movement of the counterweight 81 c is shown, raised and possibly by not

held in this position by the indicated means firmly attached to the support 81 α,

Firing pin 81 e and 81 / limited. The device 81 is then

The carrier 81 d is down (Fig. 5) to lengthen the lever 83 α to the stop.

in the molten tin bath immersed part 25 pivots. In this position shown in FIG

extended. At the lower or free end of this, the wire can be drawn in in a straight line and very easily

Extension is not going to be a deflection sector 88.

rotatable disc arranged with a running groove, which is after leaving the scraper 89 Deflection of the wire 4 is used. Instead of the washer, the wire can first be used for pre-cooling via a can also a grooved disc- 30 reaching a long distance freely guided in the air, the sector of about 180 ° can be used, the tin layer covering the wire corresponds to it the angle that solidifies from the incoming and the reaching before the wire passes over a circumferential end Part of the wire 4 is formed. caster is directed. The length of this route is

The deflection sector 88 can consist of any purpose, depending on the respective cooling conditions Material, e.g. B. made of steel and sintered 35 gene, especially the running speed of the Porcelain. The wire 4 slides through the wire. Generally it is in the size guide of the deflection sector 88, whereby by the order of 4 m liquid tin to ensure adequate lubrication, the roller 96 (FIG. 1) is therefore on one is performing. so far lowerable carrier 97 attached that the

A seat for 40 roll 96 is also within easy reach on the carrier 81 d.

a height-adjustable scraper is provided. The wire 4 is then guided to the cooling trough 10 via a further deflection of the embodiment shown, this is a potassium roller 98 (FIG. 1). This burned nozzle 89, which the wire traverses on its exit trough, can be of the same design as the one above from the tin bath. The nozzle 89 is troughs 5 and 6 described in this way. From the exit of the trough, the seat is mounted so that after all the lines 10, the finished wire 4 can move somewhat over the deflection roller lines. It is always passed in 99 to the receiving device 11, where it is brought into such a position that its lower part is wound onto spools or the like in a known manner,
immersed in the tin bath and its upper part above If after leaving the tin bath the air is half of the bath level, which means that the cooling is practically insufficient, you can have the wire 4 bath temperature, but let the wire outside the 50 emerge at an angle to the bath surface, how it emerges from the nozzle in baths. This position is shown under the modified embodiment of FIG. 8 taking into account the changes in the bath level. The wire 4 runs through a trough 100 provided with slots by adjusting the lever 83 α in relation to it, in which a cooling liquid is set to the toothed sector 87. revolves, and is then over the pulley 96 and

When leaving the bath, the wire according to FIG. 55 possibly runs through the further cooling trough 10

the embodiment of FIG. 5 passed vertically to the receiving device 11. If the facility

at the top and passes the axis 82 on the right. functions of the system, as in F i g. 1 shown in

Through this arrangement the voltage of the series is supposed to be installed, so the usual one becomes through

Wire 4 cause the counterweight 81 c on the motor 3 taking place drive of the wire 4 in the

Stop 81 e is applied. 60 wire drawing and annealing device with the wire

The carrier 81 d carries a stop cam 90, driven synchronously in the receiving device

on which the lower extension of the device 91 switches.

rests. The main part of the facility 91 is a wire drawing and tinning with high level

Plate, which is bent so that it is to take place from a wire 4 throughput speed and the

traversed tunnel forms. It is proportionate to its upper 65 mechanical strength of the wire

End firmly connected to part 92. The latter is weak, you have to use the synchronous drives when

pivotable about the axis 93, which control of the start-up so that the speed is very

Trough 8 attached carrier 94 is held. gradually increasing. One therefore uses as a motor

drive 3 ζ. Β. an infinitely variable motor or a motor with a coupled, progressively working one Gearbox with which the increase in speed can be regulated to the required extent.

Fig. 7 shows a modified arrangement of the wire drawing, annealing and tinning device in the usual trough of the annealing device as the cooling trough and the usual receiving device as the receiving device the wire drawing machine.

As with the system described first, you have the wire drawing machine 1, the annealing device 2 and the drive device 3. From the exit of the annealing device 2, the wire runs through the degreasing trough 5 and the pickling and rinsing trough 7 to the tinning trough 8. After leaving the tinning trough it runs through the wire makes the air cooling distance to pulley 96 and then passes through the cooling trough the annealing device 2 and finally to the receiving device of the wire drawing machine 1. Also in this system, the troughs 5, 7 and 8 have the same design as in the system of FIG. 1. In F i g. 7, however, only one trough 7 is provided for pickling and rinsing, since these two operations are used in certain products can be carried out in a trough. You can also use products with which the operations of degreasing, pickling and rinsing are carried out at the same time can. In these cases the number of treatment currents is reduced.

ίο Thanks to the use of a grooved Fixed deflection sector 88 for deflecting the wire can be done with a tinning bath wire drawing and tinning from a shallow depth at the same time and at high throughput speeds carry out. The addition of this means is the arrangement of the guide rollers and deflector plates described to remove the liquids during the surface preparation of the wire and a Motor with adjustable acceleration. The attachment

so can be used in the same way for the treatment of use thick, medium and thin wires.

For this purpose 2 sheets of drawings

409527/323

Claims (1)

1 2 From the German patent specification 433 793 it is Claim: known to lead the wire up vertically from a deflection roller in the tin bath and through a vertical Device for wire drawing and warm adjustable, but at a considerable distance above tinning of metal wires at a high flow rate speed using a single let. The stripping device is primarily used Drive device consisting of a wire for smoothing the plastically solidified coating metal. drawing and a soft annealing device known disadvantage is that at higher throughput speeds Design, at least one of the annealing device speed vortices arise on the bath surface, which the subsequent, the surface pretreatment promote oxidation, an even surface of the wire serving trough as well as the tin bath, in train and for splashing metal that can lead to a wire guide that can be raised and lowered. Umlenksektor immersed and the one high- In addition, the creation of a plant for adjustable wiper, and means tinning of wires with high throughput to cool down and absorb the tinned 15 speed up to now still further difficulties Wire, characterized in that with it, which affects the start-up of the plant under the deflection sector (88) provided with a running groove taking into account the mechanical strength of the and which is preferably obtained from a calibrated nozzle of wire, since a wire of relatively (89) existing small diameter, vertically traversed by the wire, with a much higher end Scraper on one to regulate the speed than with the usual tin immersion depth, height-adjustable carrier (81 d) is intended to run. It was difficult too are ordered and that as a result of this regulation at high throughput speed, the distance the lower part of the scraper always into the tin- the excess liquid when leaving the bath is immersed, but its upper part is surface treatment baths and before entering outside of the tin bath. 25 the tinning bath. For these reasons, the maximum throughput achieved with wire tinning The invention relates to a device for wire speed well below the speeds that can be achieved by drawing and hot tinning of metal wires with wire drawing, and it was therefore not possible to use a high throughput speed using 3 °, a single drive device consisting of a satisfactory manner to create a continuously operating system that has a wire drawing device, a known type of annealing device, at least one annealing device and a tinning device in a wire drawing device and a soft annealing device,
Direction following, the surface pretreatment controllable drive devices with which the development of the wire serving trough and the tin bath, 35 wire according to its strength up to the end of the wire can be brought a speed that can be raised and lowered for the wire guide, are known deflection sector dips and the one height adjustment - ("Draht", 1957, No. 8, p. 339). Has fixed adjustable wipers, and means for deflecting sectors are cooling and receiving the tinned wire in the German patent. 642 892. However, these cannot be adapted to the respective height of the weld pool, based on generally soft-annealed known, treatment troughs for pre-wires, in several successive work operations and the arrangement of rollers are carried out, namely the Surface removal of liquid by means of centrifugal force, treatment of the wire, such as degreasing, pickling (Deka- The invention allows, while eliminating the pieren), rinsing, then the actual tinning 45 previous difficulties the wire drawing and that and the cooling before winding the Wire. To carry out hot tinning in one plant, with certain operations for surface treatment, the successive work can be combined in a chain. Naturally, gears are carried out on a wire which, due to the throughput speed of a tinning machine, runs all devices with the same high linear system, limited by the technological requirements as in the case of the wire drawing machine, in each of the above-mentioned operations The invention is a device special in the tinning itself. For wire drawing and hot tinning of metal-When passing through the molten wire at high speed under the tin bath, the wire must enter between its use of a single drive device and its exit via at least one Deflectors run upright from a wire drawing device and a soft annealing device, which generally consists of a device of known type, at least one of the uppermost roller, which is moveable and adjoins the annealing device in rotation through the wire. If such a pulley is arranged for the pretreatment of the wire and in a trough that is not very running, the tin bath, in which a wire guide is lifted, has the disadvantage that movements 60 lowerable deflection sectors are immersed in the weld bath and one of them is caused, which has the oxidation 'of the height-adjustable scraper, and means favoring the bath surface and even spraying metal for cooling and receiving the tinned wire, if the wire passes through at a high speed, which is characterized by the fact that the groove speed takes place. Attempts have been made to avoid these disadvantages by using a calibrated nozzle consisting of a deep trough from the wire digging, but this vertical scraper on a to the regulator increases the installation costs, the amount of tin-plating of the immersion depth height-adjustable carrier bads and their heat losses. are arranged and that as a result of this regulation