ADJUSTING ROLLS

Abstract

A method and an apparatus for adjusting a suction roll. The method includes: recording images and/or videos of the exterior of the roll and transmitting the recording to a computing unit; determining the actual values of the position of the sealing strips and/or edge deckles and/or other, non-visible components by the computing unit through image analysis of the image and/or video recording of the exterior of the roll and/or by acquiring values from an embedded sensor system; and displaying the determined actual values by superimposing the position of the non-visible components on a display with the image and/or video recording.

Claims

1. A method for adjusting a suction roll, in particular for a machine for producing or processing a web of fibrous material, the method comprising: recording images and/or videos of the exterior of the roll and transmitting the recording to a computing unit; determining the actual values of the position of the sealing strips and/or edge deckles and/or other, non-visible components by the computing unit through image analysis of the image and/or video recording of the exterior of the roll and/or by acquiring values from an embedded sensor system; and displaying the determined actual values by superimposing the position of the non-visible components on a display with the image and/or video recording.

2. The method according to claim 1, wherein the method additionally comprises: Providing target values for the position of the sealing strips and/or edge deckles and/or other non-visible components; Comparing the actual values and target values by the computing unit; and Displaying the target/actual comparison on the display.

3. The method according to claim 2, wherein the method additionally comprises: determining recommendations for adjusting the suction roll from the target/actual comparison; and displaying the recommendations on the display.

4. An apparatus for adjusting a suction roll, in particular for a machine for producing or processing a web of fibrous material, comprising: a camera for recording image/video recordings; a computing unit; and a display, wherein the camera is in contact with the computing unit such that it can transmit the image and/or video recordings to the computing unit, and wherein the apparatus is configured for performing a method according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0087] The invention is explained in greater detail below with the aid of schematic figures.

[0088] The invention is thereby not limited to these embodiments.

[0089] FIG. 1 shows a possible display of the determined actual values.

[0090] FIGS. 2a, 2b, 2c show alternative displays of the determined actual values.

DETAILED DESCRIPTION

[0091] FIG. 1 shows a computing unit 2 having a display 3, such as that which is suitable for use in an embodiment of the present invention. An image or video recording of the suction roll 1 is thereby transmitted to the computing unit 2. The computing unit 2 can then, using image analysis of the image and/or video recording of the exterior of the roll and/or using the acquisition of values from an embedded sensor system, determine the position of non-visible inner installations such as sealing strips or edge deckles, for example. Thus, for example, the threaded rod for adjusting the edge deckles, which normally has dimensioning, can be identified and evaluated on the image, which allows the position of said edge deckles to be determined. In a similar manner, optical markings on the cover of the roll can be provided, from which markings the position of said sealing strips can be determined by image analysis.

[0092] Furthermore, it is possible for the computing unit to be connected to a further database from which information about the relevant suction roll is stored. An identification of the suction roll can take place via an ID tag, for example. It can be possible to either directly identify said ID tag optically from the image or video recording. Alternatively or additionally, however, a different tag, for example an RFID tag, can also be used. In that case, it is generally advantageous that said tag can also be directly read by the computing unit, for example a mobile phone or tablet computer.

[0093] In FIG. 1, it is, by way of example, outlined how, on the display 3 of the computing unit 2, the position of two sealing strips, in the form of dashed lines, is superimposed on the image or video recording of the suction roll 1.

[0094] FIGS. 2a, 2b, and 2c show alternative illustrations of the installations on the image of the suction roll. For example, sealing strips and edge deckles can be displayed at the same time, as in FIG. 2a. FIG. 2b shows, by way of example, the suctioned area, which is formed by sealing strips and edge deckles.

[0095] FIG. 2c is intended to indicate that even more information can also be displayed on the display 3. There, it is data from the CAD system which superimpose the relevant details of the inner structure of the suction roll on the image of the roll. In principle, it is possible in this case to display, at specific locations, a plurality of information that makes the adjustment easier for the operating personnel.