Roller stand having elastically mounted supporting rollers

Patent metadata

Field	Value
Publication number	US-11660665-B2
Application number	US-201917270745-A
Country	US
Kind code	B2
Filing date	Sep 18, 2019
Priority date	Sep 25, 2018
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

A roller stand for a continuous billet casting machine, having a carrying frame for mounting at least one lower supporting roller and at least two lateral supporting rollers. The lateral supporting rollers are mounted elastically on the carrying frame by means of at least one passive elastic element, and have an amount of elasticity at least in a direction perpendicular to the axes of rotation of the lateral supporting rollers. A method for determining the position and/or the shape of a billet is provided. During passage through at least one roller stand, alterations in the position at least of the lateral supporting rollers relative to a reference are detected and, on the basis of this information, the shape of the billet and/or the position of the billet in relation to the center line of the billet-guide channel are/is determined.

First claim

The invention claimed is:

1. A roller stand for a billet strand casting system, comprising:
a support frame for mounting at least one lower support roller;
at least two lateral support rollers provided with respective position measuring devices, the respective position measuring devices configured to measure a position of a respective one of the at least two lateral support rollers; and
a controller configured to:
receive detected position changes of at least the lateral support rollers with respect to a reference during passage of a billet strand through a strand guide channel of the at least one roller stand, and
determine, based on the detected changes, at least one of the position of the billet strand with respect to a center line of the strand guide channel and a form of the billet strand;

wherein the at least two lateral support rollers are elastically mounted on the support frame by at least one passive elastic element having an elasticity at least in a direction perpendicular to axes of rotation of the at least two lateral support rollers.

2. The roller stand as claimed in claim 1 , further comprising at least one upper support roller elastically mounted on the support frame and having an elasticity at least in a direction perpendicular to an axis of rotation of the at least one upper support roller.

3. The roller stand as claimed in claim 1 , wherein the at least one lower support roller and the at least two lateral support rollers are arranged in a single plane.

4. The roller stand as claimed in claim 3 , further comprising:
at least one upper support roller elastically mounted on the support frame and having an elasticity at least in a direction perpendicular to an axis of rotation of the at least one upper support roller;
wherein the at least one upper support roller is provided with a further position measuring device.

5. The roller stand as claimed in claim 4 , wherein the at least one upper support roller is mounted on a rocker.

6. The roller stand as claimed in claim 1 , wherein:
the at least two lateral support rollers are arranged in a first plane;
the at least one lower support roller is arranged in a second plane; and
the first and second planes are different.

7. The roller stand as claimed in claim 6 , further comprising:
at least one upper support roller elastically mounted on the support frame and having an elasticity at least in a direction perpendicular to an axis of rotation of the at least one upper support roller;
wherein the at least one upper support roller is arranged in the second plane.

8. The roller stand as claimed in claim 6 , further comprising:
at least one upper support roller elastically mounted on the support frame and having an elasticity at least in a direction perpendicular to an axis of rotation of the at least one upper support roller;
wherein the at least one upper support roller is arranged in the second plane; and
wherein the at least one upper support roller is provided with a further position measuring device.

9. The roller stand as claimed in claim 1 , wherein the elastically mounted support rollers are elastically spring-loaded.

10. The roller stand as claimed in claim 1 , further comprising:
at least one upper support roller elastically mounted on the support frame and having an elasticity at least in a direction perpendicular to an axis of rotation of the at least one upper support roller;
wherein the at least one upper support roller is provided with a further position measuring device.

11. The roller stand as claimed in claim 1 , wherein the at least one passive elastic element comprises at least one coiled spring.

12. The roller stand as claimed in claim 1 , wherein the at least two lateral support rollers are mounted in rockers.

13. A strand guide of a billet strand casting system, comprising at least one roller stand as claimed in claim 1 .

14. A billet strand casting system, comprising at least one roller stand as claimed in claim 1 .

15. A roller stand for a billet strand casting system, comprising:
a support frame for mounting at least one lower support roller;
at least two lateral support rollers provided with respective position measuring devices;
at least one upper support roller elastically mounted on the support frame and having an elasticity at least in a direction perpendicular to an axis of rotation of the at least one upper support roller; and
a controller configured to:
receive detected position changes of at least the lateral support rollers with respect to a reference during passage of a billet strand through a strand guide channel of the at least one roller stand, and
determine, based on the detected changes, at least one of the position of the billet strand with respect to a center line of the strand guide channel and a form of the billet strand;

wherein the at least two lateral support rollers are elastically mounted on the support frame by at least one passive elastic element having an elasticity at least in a direction perpendicular to axes of rotation of the at least two lateral support rollers; and
wherein the at least one upper support roller is provided with a further position measuring device.

16. The roller stand as claimed in claim 15 , wherein the at least two lateral support rollers are mounted in rockers.

17. The roller stand as claimed in claim 15 , wherein the at least one upper support roller is mounted on a rocker.

Assignees

• Primetals Technologies Austria GmbH

Inventors

• Bilski Lukasz
• Mayer Enrico

Classifications

• B22D11/20

  for removing cast stock · CPC title

• B22D11/1285

  Segment changing devices for supporting or guiding frames · CPC title

• B22D11/1226

  for straightening strands · CPC title

• B22D11/225

  for secondary cooling · CPC title

• B22D11/22

  for cooling cast stock or mould · CPC title