DD269329A1 - ROLLED WIRE STRIP AT THE WINDING RACK - Google Patents

Abstract

The invention relates to a Walzdrahtleiteinrichtung on Windungsleger. It relates to a device for guiding the wire rod after emerging from the layover tube of a layer, which serves to deposit the rolling stock on a conveyor in a wire rolling mill. The aim and object of the invention is to provide a device which continuously generates regular and reproducible turns and deposits them on a conveyor. According to the invention, this is achieved by connecting, with a certain overlap on the inside of the laying tube, a baffle fastened in a certain wrap angle and on the inner wall of the bell, which baffle is also defined in its spatial position. Fig. 1

Description

For this 5 pages drawings

Field of application of the invention

The invention relates to a device for guiding the wire rod after emerging from the laying tube of a Windungslegors, which serves for depositing the rolling load on a moving conveyor in a wire rolling mill.

Characteristic of the known state of the art

In Windungslegern depositing the rolling load on a moving conveyor is done by a laying pipe, which is guided through the hollow shaft of the Windungslegers and held by suitable devices (DD 214070).

At high rolling speeds and thus also high rotational speeds of the laying tube, the balancing of the entire machine is of particular importance. The problem is solved in that the lay tube is stored in the interior of a bell, which can absorb the centrifugal forces that arise and offers the opportunity to carry out a balancing can. It makes sense to provide a further tube to the lay tube, which is arranged axisymmetric. Balancing is facilitated if the same type of fixing is used for both tubes, which is also applied in the same place.

The disadvantage of this device is that the emerging wire rod is no longer guided after leaving the laying tube. Due to variations in the rolling speed, which are caused by control operations of the rolling block, the exit point in the region of the inner surface of the laying tube change, the trajectory outside the lay tube take different forms, and thus there are different impact points on the subsequent conveyor.

It has been shown in practical operation of the Windungslegers that the trajectories in the individual Walzrirahtubmessungen and wire strengths are different and there is a further disadvantage that a change in the exit angle at the outlet piece: the laying pipe proves to be necessary to same storage conditions for the wire rod to obtain.

Furthermore, it has been shown that the wire beginning at the moment of exit from dom laying tube does not take a clear stable path, resulting in a poor filing of the initial turns on the feed dog.

A device is known (DE 1602354), in which a worm gear is attached to a rotating laying cone. In the laying head, the wire rod coming from a rolling line is deformed by insertion into the rotating laying head with laying cone and screw thread m in a wire winding strand. The handling of the worm gear is limited by a cylindrical housing.

Another device is known (DE 1291716), in which the laying tube a worm gear running in a cylindrical housing is subsequently arranged, which serves for dofinierten Windungsablage on the subsequent conveyor device.

The disadvantage of this device is that a uniform depositing means of a flight is indeed possible, but in the event of an accident, the removal of the scrap is very time-consuming and is calculated with damage to the flights iu .

Another disadvantage is given by the fact that by the constant guidance of the wire in the worm gear increased wear occurs, due to the axial braking or conveying an increased manufacturing effort is recorded that the formation of a / elnjn turns, after the wire rod laying tube leaves, can no longer be observed and thus decisions about a Einstellungskcrrektur are made considerably more difficult.

Furthermore, a device is known (DE 1814280), in which the wire rod is forcibly guided after leaving the laying tube by a rotating roller.

The disadvantage of this device is that in addition large masses must be kept in rotation, which has an unfavorable effect on the control behavior of the entire machine.

It is sine another device known (DE 128543 j), in which a uniform laying on the conveyor is to be achieved in that the wire turns of transfer means r; iant, which are arranged below or above the wire turns emerging from the laying pipe.

The disadvantage of this device is that the transfer means can not detect each L rahtwindiing individually, which would make an excessive speed required, esp. Ondore detecting the initial winding unsafe and thus the laying quality is only partially influenced.

Object of the invention

The aim of the invention is to ensure the regelmüßige and continuous deposition of the wire rod on a moving conveyor z> i to create a device that secures p'eicher adjustment dos Legerohres a reproducible Windungsbildung, the wear by the wire rod mlnimiort, a fast Eliminating the accumulated scrap boi accident allows reducing the heat load on parts of the layer and allowing easy car balancing.

Explanation of the essence of the invention Dei invention is the object of developing a device that the trajectory of emerging from the laying ear Wire rod is produced so that a uniform 3S laying of the individual turns on a subsequent feed dog

is guaranteed.

According to the invention the object is achieved in that with an overlap by the dimension a = 5-1 Omm to d <v Inner.leite of adjustable on cam in a conventional manner Legerohros a b on the inner wall of the bell Leitble: h followed by a wrap angle of 150-210 °, wherein the pitch angle α, based on the Transverse axis of the Windungslegers, 1.2 to 1.6 °, while the pitch angle of the laying pipe β between 1.2 and 3 °

is adjustable.

It also belongs to the invention that introduced for better cooling of the baffle breakthroughs and as guide vanes, to

the inner free side lying, are formed.

It is also essential that for the radial support of laying tube and to reduce the heat transfer cams

are arranged, whose web height h = 10-20 mm is dimensioned.

embodiment The invention se | be slurred closer by means of an embodiment. The individual figures of the drawing show: Fig. 1: Windungsleger in sectional view 2: View A of FIG. 1 3 shows section B-B of FIG. 2 4 shows section C-C of FIG. 2 Fig. 5: drawn in the plane development of laying tube and the baffle.

The Windungsleger consists of a laying tube 1, which is mounted in a hollow shaft 2 and in a bell 3. The drive of the Ht hlwelle 2, at which the bell 3 is flanged, via the transmission 4 by a drive motor, not shown. The bearing of the hollow shaft 2 takes place in the bearing 5 and the head la ier 6. The lay tube 1 is fixed in the bell 3 in the inner fixed point 7 and the outer fixed point 8. Behind the outlet of laying tube 1, a guide plate 9 is provided, which is adapted in its outer diameter of the bell 3, an angle of 150-210 ° einschließ 'and has a slope in the form of a part of a check passage. At this baffle 9 brackets 10 are welded, which are fastened by means of bolts 11 and thrust pieces 12 to the bell 3. On the adjustment claw 13, the pitch angle β of the logo tube 1 can be changed, for which purpose the two adjusting nuts 14 are provided. In the guide plate 9 breakthroughs 15 are provided, which allow a Druchtritt vcn cooling air. The laying tube 1 is supported on cams, which are part of the bell 3.

operation The wire rod coming from the billet passes through the laying tube 1 and is turned into individual turns by its curvature

shaped. After emerging from the laying tube 1 of the wire rod meets the baffle 9 and is characterized by the slope of the

Promoted area of the bell 3 and then falls as turns on a conveyor, not shown. The stiffness of the wire rod, which depends on the wire rod diameter, the temperature and the steel quality, is

different, so that the exit point at the end of laying tube 1 is different. The different exit of the

Walzader is eliminated by the guide plate 9 in its effect on the falling curve of the turns, so that at all Dimensions, temperatures and steel qualities the same Windungslage on the conveyor ensteht. An additional way to adjust the exit angle β of laying tube 1 is given by the Verstellklaue 13, the

can be moved by means of two adjusting nuts 14 on a threaded bolt.

To counteract the high heat load of the baffle 9, cooling air can pass through the recesses 15,

to cool the baffle 9 on the side facing the wire rod. In the production de. Recesses 15 is behaved in such a way that the sheet metal part for the apertures 15 is bent so that it assumes the function of vanes 17, whereby the cooling air flow is amplified when the guide plate 9 with the Legerohi 1 in the indicated in Fig. 5

Direction of rotation moves.

Claims (3)

1. Walzdrahtleiteinrichtung on Win jungsleger for guiding the wire rod during the Windungslegung and to ensure a continuous production and a gleich- "offshoot of wire turns on a subsequent conveyor, characterized in that with an overlap around the mass" a "= 5-1 Omm on the inside of the adjustable on a cam i 16) in a conventional manner Lego tube (your the Iniienwandung the bell (3) attached, with its web vertically arranged baffle (9) with uinem Umschlingungswir.kel of 150-210 "followed, whose pitch angle α, based on the transverse axis of the Windungslegers, 1.2 to 1.6 °, while the Stei supply angle of laying tube β between 1.2 and 3 ° is adjustable. 2. Rolled wire guide device according to claim 1, characterized in that for better cooling of the guide plate (9) openings (15) introduced as guide vanes 1. \ On the inner free side lying, (17) are formed. 3. Rolled wire guide device according to claim 1, characterized in that for the radial support of laying tube (1) and to reduce the heat transfer cams (16) are arranged, whose web height h = 10 to 20 mm is dimensioned.