DE1217030B - Support roll frame for a steel or metal continuous casting plant - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

B22d

German KL: 31c-21

Number: 1217 030 \ ^} _ ^ ύ

File number: D 39232 VI a / 31 c

Filing date: June 27, 1962

Opening day: May 18, 1966

The invention relates to a steel or metal continuous casting plant and relates to a back-up roll stand for guiding the cast strand emerging from the mold in a straight line.

In such continuous casting plants, where the dimension of the cast strand is often appropriate the requirements of further processing should be changed, for example billets or blanks Different dimensions are to be produced, there is the problem of the distances between the backup rolls to be able to change quickly from one another.

The invention is based on the object of creating a back-up roll stand, which with simple Means a quick adjustment of the backup rolls to adapt to different strand dimensions allows.

In known backup roll devices, the two sides of the cast strand are assigned to one another Back-up rollers connected in pairs by means of two links each, at their connection point an adjustment force engages to press the rollers against the strand. The connection is also used as a spacer the associated rollers of a roller pair known by tabs.

Based on the known connection of the bearing journals of two on both sides of the cast strand back-up rollers associated with one another by means of links, it is proposed according to the invention that the angular position the handlebars can be changed with respect to the strand axis and the handlebars can be locked in their setting position are. By adjusting the angular position of each of the two rollers connecting links to form a pair the distance between the two rollers, based on the strand axis, changes from one another. Through the Formation of jointly adjustable pairs of rollers by means of the handlebars according to the invention A quick adjustment is created without the need for a great deal of effort.

This arrangement according to the invention results in the possibility of a further feature of the invention one row of back-up rolls is rigid from one side of the strand in a stationary stand to store and the other opposite row of backup rolls in a second, in the direction of the To arrange strand axis displaceable scaffolding. The sliding movement can be carried out by one on the frame attacking power drive, for example a spindle adjustment, be provided. By simple Adjusting one frame part in relation to the other, the distance can optionally be changed continuously and thus can be adapted to any dimension.

In another embodiment, according to the support roll stand for a steel or
Continuous metal caster

Applicant:

DEMAG Aktiengesellschaft,

Duisburg, Wolfgang-Reuter-Platz 1

Named as inventor:
Dr.-Ing. Hans Baumann,
Wilhelm Koch, Duisburg 4

the further invention, one or more links for one or more pairs of rollers in the middle of the strand be pivotally mounted on a fixed supporting frame arranged bolts, the two with each A frame parts provided with a row of backup rollers can be displaced relative to one another in the direction of the strand axis are. These frame parts can be stored in special guides. It is thereby achieved that the central axis is always retained for each shift or change in distance. This arrangement is therefore advantageous because in this case no readjustment of the casting device itself is necessary is.

A modification of the device according to the invention is that only one or a part of the pairs of backup rolls on bolts arranged in the center of the strand around a stationary frame pivotally mounted and the other subsequent pairs of backup rollers of the two rows of backup rollers by means of Lugs are coupled together in such a way that at least two consecutive Rolls of a back-up roller row are connected by a tab each. This allows both or at least one support roll frame part for the one row of rolls can be saved, since the individual Rollers are coupled by special tabs connecting at least two rollers to one another.

In the drawing, exemplary embodiments of the invention are shown schematically and in the following explained in more detail.

In Fig. 1 shows a support roll stand for a steel or metal continuous casting plant according to the invention, in which two rolls 2a, 3a, 2b, 3b, 1c, 3c each arranged on both sides of the strand 1 are connected at their bearing points by means of links 4. Here, the links 4 are opposite in their angular position

609 569/364

the strand axis adjustable, as it is on the one hand on the fixed frame part 5 and on the other hand on the movable frame part 6 are mounted. The movable frame part 6 is by means of an adjusting device 7 arranged displaceably in the direction of the strand axis. A special leadership of the movable Scaffolding part 6 is not required because the suspension of the link 4 provides a parallelogram-like guide is forced.

In Fig. 2, the embodiment is shown in a modification of the invention that at least one link 4 is pivotally mounted in its center in a special fixed support frame 8 about a pin 9, the two each with a support roller row 2 a, 2 b and 3 a, 3 b provided support roll frame parts 5 are mutually displaceable in the direction of the strand axis. Instead of special guides for the frame parts 5 and 6, additional rigidly arranged but adjustable guide rollers 10, 11 are provided. The link 4 mounted in its center is provided on one side with an extension 4 a on which the spindle adjusting device 14 engages. By operating the adjusting device, the opening between the roller pairs, viewed in the direction of the strand, can be changed continuously.

In the further modified version according to FIG. 3, the frame parts 5 and 6 are replaced by individual tabs 12 a, 12 b, 12 c and 13 a, 13 b, 13 c each connecting two successive back-up rolls of a back-up roll row. This enables a lighter construction and an easier replacement of individual rollers.

Claims (4)

Claims: 35 1. Back-up roll stand for a steel or metal continuous caster for guiding an in straight direction from a mold leaking strand, the bearing journals of two on both sides of the cast strand associated back-up rollers connected by means of links are, characterized in that the angular position of the link (4) relative to the strand axis changeable and the handlebars (4) can be locked in their adjustment position. 2. Back-up roll stand according to claim 1, characterized in that one back-up roll row (2 a, 2 b, 2 c) is rigidly mounted on one side of the strand in a fixed frame part (5) and the other opposite back-up roll row (3 a, 3 b, 3 c) is mounted in a second frame part (6) which is displaceable in the direction of the strand axis and which is adjustable by means of a known power drive. 3. Support roll stand according to claim 1, characterized in that one or more links (4 in Fig. 2) for one or more pairs of rollers (2 a, 3 a; 2 b, 3 b; 2 c, 3 c) in the middle of the strand to A fixed frame (8) arranged bolts (9) pivotably mounted and the two frame parts (5, 6), on each of which a support roller row (2a, 2b, 2c or 3a, 3b, 3c) is mounted, against each other in the direction of the strand axis are movable. 4. Support roll stand according to claims 1 and 3, characterized in that only one or a part of the support roller pairs (2a, 3a, Fig. 3) is pivotably mounted on bolts (9) arranged in the middle of the strand around a stationary stand (8) and the the other subsequent pairs of backup rollers (2 b, 2 c; 3 b, 3 c) of the two rows of backup rollers are coupled to one another by means of brackets (12a, 13a; 12Z>, 13b; 12c, 13c) in such a way that at least two successive rollers (2a , 2b; 2b, 2c and 3a, 3b; 3b, 3c) of each back-up roller row are connected by one tab (12 a, 13 a). Considered publications:
French Patent No. 1197 837;
Herrmann: "Handbuch des Stranggießens", 1958, p. 372. 1 sheet of drawings 609 569/364 5.66 © Bundesdruckerei Berlin