DD158004A1 - SEPARATING DEVICE FOR SEALING ROLLERS IN A ROLLING ROLL - Google Patents

Abstract

Separating device for closely following Walzstaebe in a Auflaufrollgang. The object is an abovementioned separation device with groups raised and lowered Trennwaenden that divide the Auflaufrollgang in two Laengsabschnitte, of which the Kuehlbett facing section between the rollers of group liftable Aushebeschiebern consists and the rod tips of Walzstaebe at certain selectable points of the Auflaufrollganges in be deflected to the Kuehlbett abgegeehrten Laengsabschnitt to create, with the particular shortened by the reduction of the delay line and the shortening of the braking distance of Walzstaebe the plant or the hall length is shortened to a considerable extent. This is achieved in that behind equipped with adjustable side walls Zufuehrrinnen in the Kuehlbett facing Laengsabschnitt the Auflaufrollganges arranged in spaced independently abhebbare deflectors are optional with the respective subsequent groups of Trennwaenden in working position.

Description

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Running device for closely following rolling rods in a Auflaufrollgang _a

Anwendungsfiobiot the invention

The invention relates to a device for separating the rod ends and the rod tips of spaced apart rolling rods in a caster to a cooling bed with groups raised and lowered partitions that divide the caster in two longitudinal sections, wherein the cooling bed facing longitudinal section between the roller table rollers groupwise raisable and lowerable lift-out sliders and deflects the rod tips at certain selectable points of the run-on roller table into the longitudinal section facing away from the cooling bed.

Characteristic of the known technical solutions

In order to separate the rod end of a rolling rod from the unsupported rod tip of the next rolling rod, it is known in one-strand roads with downstream two-sided cooling bed to arrange a switch behind the cooling bed shear.

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When switching the switch, the rod end is deflected and dismissed the subsequent rod tip to the caster roller of the second cooling bed half. (DD-PS 33 211) ·

The rod separation described here, without advancement of the first rolling rod before the following second rolling rod, is not suitable for roads in which a rolling load follows only a cooling bed side.

It is also known that the separation of the St abendes be operated by the subsequent rod tip, the EoIlgänge behind the cooling bed shear at a higher speed relative to the outlet stand of the rolling mill · This has the consequence that between rod end of the leading roll bar and the rod tip of the subsequent rolling rod I / ücke arises. This is required so that the Aushebeschieber the Auflaufrollganges are already raised so far when braking the leading rod that the subsequent rod can not accumulate, but is rejected from the beginning, wedge-shaped Aushebeschieber for parallel running laterally (DD-PS 1017 577 ).

A disadvantage of this mode of operation is the extension of the feed roller table and the braking distance which is necessary due to the pre-run. For example, should the lift-off valves located at the beginning be raised by about j0 mm before the succeeding rod tip reaches them

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at a final rolling speed of 20 m / s a flow distance of 4-8 m required. This corresponds to a supply of 20 % and thus a roller table speed of 24 m / s.

The resulting braking distance is 84 m and a total distance of 132 m is required · Without this feed, ie at a speed of the rolling rod of 20 m / s, the braking distance is only 58 m.

The possible only with advance transfer of the rolling rods on the Aushebeschieber is thus connected to a running out without an approach solution with a hall extension, which can be up to 74 ш .

Furthermore, the flow during use of an internal cooling unit, which is arranged between the cooling chute and the run-up roller table, has a very disadvantageous effect. The rolling rod passes through the cooling section only at rolling speed and accelerates through the flow after the first cutting of the cooling bed shear is, happens faster with the rear rod part, the cooling line · This is subjected to the rolling rod of a different cooling, so that he does not have a uniform structure on his anxiety.

Another disadvantage of the flow is that before the cut on the cooling bed shear through the different speeds of roller rod and roller table a strong wear ЗО dor roller table rollers occurs ·

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Especially with intensively cooled concrete steel occurs a strong groove formation.

The aim is to eliminate the aforementioned disadvantages.

Presentation of the V7esens of the invention

The invention has for its object to provide a device for separating the rod ends and the rod tips of non-spaced following rolling rods in a Auflaufrollgang to a cooling bed with groups raised and lowered.

Partitions, which divide the Auflaufrollgang in two Längsäbschnitte, wherein the cooling bed facing longitudinal section between the roller table rollers from groups raised and lowered Aushebeschiebern and the rod tips are deflected at certain selectable points of Auflaufrollganges in the cooling bed remote longitudinal section, to create in the By eliminating the flow in the use of water cooling a uniform cooling over the entire Walzstablänge is achieved and the transport of intensively cooled concrete steel on the collapse wear of the roller blocks due to groove formation is avoided and in particular by reducing the flow path and the shortening of the braking distance of the rolling rods the plant or rolling hall length is shortened to a considerable extent.

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According to the invention, the object is achieved in that behind equipped with adjustable side walls feed chutes in the cooling bed facing Längsabschiiitt the caster ganges arranged at intervals, independently raised and lowered deflector, which are known as Pührungsstücke the Ausheboschieber per se, optionally with the respective subsequent groups of partitions can be placed in working position.

Furthermore, the partitions j are placed in the working position on the rest position Aushebeschiebern are traceable by standing in the braking position Aushebeschieber to the starting position in which the partitions are locked by locking lever individually, in groups or together.

Finally, the deflectors are raised and lowered independently of the pick-up sliders that receive them.

embodiment

The invention will be explained in more detail below using an exemplary embodiment. The accompanying drawings show:

Pig · 1; Top view in the section of the refrigerated bed shear to the overhead roller table,

Pig · 2: section A-A of Fig. 1, partitions in

Starting position, Fig. 3: section A-A of FIG. 1, partitions in

Work setting,

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Fig. 4; Cut A-A to Pig. 1, Aushebeschieber in top brake position.

According to Fig. 1 and 2, the feed chutes 1 are set with their adjustable side walls according to the rolling program · The deflector 4 and the Aushebeschieber 7 are in Huhelage. The partitions are raised and are in initial position. According to Fig. 3, which represents a section of Fig. 2, the dash-dotted lines deflector 4 subsequent partitions 5 are lowered by opening the locking lever б in the working position. According to Fig. 4 are the Aushebeschieber 7 іl äer upper brake position »The seated partitions 5 were returned to their original position. The corresponding locking levers 6 lock the partitions 5 ·

The device has the following mode of operation: According to Fig, 2 is a first roll bar on the cooling bed 3 facing longitudinal portion of the Auflaufbegangganges 2 over the AushebeSchiebern 7 · With cutting pulse is instant or time-delayed, ie depending on the rolling speed and depending on whether between Scissors and deflectors For example, a cooling section is arranged, a partition wall arranged in groups 5 to cooling bed end by opening the locking hook б lowered in working position · Subsequently, the lowering of the partition walls upstream deflector 4 in working

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lifted position, thus simultaneously raising the rear end of the first Y / alzstabes 10 at. The already in working position partitions 5 prevent lateral slippage of this rolling rod 10 on the Abweiserschräge.

The distance without following bar tip of the second rolling rod 11 is deflected by the raised deflector Ц- in the cooling bed 3 remote longitudinal portion of the Auflaufrollganges 2, "whereby this rolling rod 11 until braking of the first roll bar 10 in addition to the working walls located partitions 5 on the rollers the Auflaufrollganges 2 runs.

By lifting the Aushebeschieber 7 of the first rolling rod Ю is braked. At the same time the lowered partitions 5 are returned to the starting position and locked by the corresponding locking lever 6. The Aushebeschieber 7 return to the rest position and the deflector 4 are lowered to the starting position · In the uppermost braking position of the Aushebeschieber 7 slips the first rolling rod 10 in the Richtrinno 9 or »first into the gutter 8, as they are known from rolling mills with great speed ·

If the Aushebeschieber 7 in rest position, then the second rolling rod 11 slips in the cooling bed 3 facing longitudinal portion of the Auflaufrollganges 2 and the working cycle can, as described, start again.

Depending on the rolling speed certain deflectors 4 are not lifted, but remain in the pick-up sliders 7 are receiving them.

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The device according to the invention in the Auflaufrollgang allows rolling rods can be transferred without advance to the Aushebeschieber · It thus guarantees in the first

OJ? Line that can be shortened by the possible reduction of the delay line and the shortening of the braking distance of the rolling rods plant or the rolling hall length to a considerable extent.

Moreover, the elimination of the flow during the use of water cooling sections achieves uniform cooling over the entire length of the Walsstablänge and prevents wear of the roller table rollers during the transport of intensively cooled reinforcing steel due to groove formation.

Claims (3)

· 229759 6 Invention claim Device for separating the bar ends and the bar tips of whale bars without spacing from each other in a run-on roller table to a cooling bed with groupwise, raisable and lowerable partition walls which divide the run-bed into two longitudinal sections, v / o at the longitudinal section facing the cooling bed between the double-acting rollers consists of groupwise raisable and lowerable Aushebeschiebern and deflected the Stabspitaen at certain selectable points of Auflaufrollganges in the longitudinal direction remote from the cooling bed v / earth, characterized in that behind equipped with adjustable side walls feed chutes (1) in the cooling bed (3) facing longitudinal section the Auflaufrollganges (2) arranged at intervals and independently raised and lowered, known per se, deflector (4) optionally with the respective subsequent groups of partitions (5) 1 working position can be set. Device according to item 1, characterized in that the dividing walls (5) can be returned from the working position by the lifting slides (7) to the starting position, in which the dividing walls (5) are arranged individually or in groups by locking levers (6) are locked together » "-T- 229759 6 3 · Device according to item 1 and 2, characterized in that the deflector (4 ·) and the receiving Aushebeschieber (7) are independently raised and lowered. For this purpose «2 / sheet drawings