Patent Application
20100269557
A specific embodiment of the invention is explained in greater detail below with reference to the drawings.
a-f show a schematic side view of an inspection system with different positions of the rolled product clamps and/or the tensioning station for rolled products.
Parts that are the same are labeled with the same reference numbers in all of the drawings.
The inspection system 1 for rolled products 2 of a rolling installation is used for inspection of the surfaces of a rolled product 2, such as sheet panels, for defects that may have been formed during the rolling process. During this operation, the rolled product 2 usually rests on a support, for example, a belt conveyor 4. Grinding of the surface or other types of pressure application may be useful in the inspection for the purpose of making even extremely fine surface rou hness visible. During the grinding or other type of pressure application on the surface of the rolled product 2, which is supported on the belt conveyor 4, the direct contact with the belt conveyor 4 can cause the texture of the belt conveyor to be impressed on and/or pressed through the rolled product 2, and this can have at least a disturbing effect in the inspection for defects that arise from the rolling process.
For this reason, the inspection station 1 in the specific embodiment illustrated in
The individual settings of the rolled product clamps 6, 8 and of the tensioning station 10 with respect to the belt conveyor 4 and the rolled product 2 that is to be ground are described below.
As
The drawings in
The drawing in
After the inspection has been performed, the tensioning station 10 is lowered back to the height of the initial position described in connection with
For the subsequent use, for example, feeding to a turning device to allow the underside of the strip also to be inspected, the rolled product 2 is again moved in the direction of conveyance X in this embodiment until it again occupies its initial position, as shown in
Naturally, the rolled product 2 can also be moved out of the rolled product clamp 8 first, and then the rolled product clamp 8 can be lowered into the initial position before the rolled product clamp 6 is cleared and lowered. In this case, the signs of the direction of conveyance X of the rolled product 2 are to be changed accordingly.
| Number | Date | Country | Kind |
|---|---|---|---|
| 103 04 582.1 | Feb 2003 | DE | national |
This application is a continuation of application Ser. No. 10/544,605, filed Jun. 13, 2006, which is a 371 of International application PCT/EPO4100833 filed Jan. 30, 2004, which in turn claims priority from DE 103 04 582.1 filed Feb. 5, 2003, the contents of which are incorporated herein by reference. The invention concerns an inspection system for the rolled products of a rolling mill. In order to subject the rolled products to an inspection for possible defects formed during the rolling operation, the surface of the rolled products is usually inspected by an inspector downstream of the rolling process. In this regard, a technique can be used in which the surface of a rolled product is ground, for example, by means of a stone, to make irregularities of the structure visible by this process. During this treatment of the rolled product, which, for example, is lying on a belt conveyor, the danger can exist that the texture of the support is impressed on the underside of the rolled product or even is pressed through the rolled product and thus becomes perceptible on the upper side. Defects that formed during the rolling process thus may not be satisfactorily detected and therefore may not be assigned to the correct source of the defect. Therefore, the objective of the invention is to specify an inspection system of the aforementioned type for rolled products of a rolling mill which reliably prevents the texture of the support from being impressed and/or pressed through during the processing of the rolled product, especially during grinding. In accordance with the invention, this objective is achieved by arranging a number of vertically adjustable clamps on a belt conveyor for rolled products in the inspection system. The invention is based on the consideration that during the processing of the rolled product, especially during grinding, it is almost unavoidable that the texture of the support is impressed on or pressed through the rolled product to be tested by the application of pressure on the surface of the rolled product. In order to avoid potential difficulties for the inspector with respect to the detection of defects on a surface of the rolled product and their assignment to the rolling process or to the support, the inspection system was to be designed to disconnect the rolled product to be inspected from its support during grinding. This is made possible by a device that lifts the rolled product from the support. For this purpose, a number of vertically adjustable clamps for the rolled product are arranged on a belt conveyor for rolled products in the inspection system. These rolled product clamps make it possible to lock the rolled product in place, to bring it safely into a raised position above the belt conveyor for the grinding process, and to maintain this position during the processing. It is advantageous for the rolled product to be in the clamped state for a careful, uniform grinding of the surface of the rolled product with respect to a subsequent reliable defect analysis. To place the rolled product in this processing position, it is advantageous to provide a vertically adjustable tensioning station between two clamps for the rolled product.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 10544605 | Jun 2006 | US |
| Child | 12832826 | US |
