FI111865B - Plant and process for the processing of cabinet beds for a paper machine / cardboard machine - Google Patents

Abstract

Arrangement and method for handling doctor blades of a paper/board machine which are placed against a face of a roll in the paper/board machine to keep the face clean and to service the face. A doctor blade blank is formed from a doctor blade roll, i.e., from a reel of doctor blade material, by unwinding the roll of doctor blade material and cutting the doctor blade material at a determined cut-off point to thereby obtain a doctor blade blank having a desired pullout or blade length and which will be modified to form a doctor blade.

Description

111865

Apparatus and method for treating roller blades of a paper machine / board machine

Anläggning och förfarande vid behandling av schaberbett för en pappersmaskin / cardboard mask 5

The invention relates to an apparatus and a method for treating roller blades of a paper machine / board machine.

10

The use of separate scraper blades is known in the art. The doctor blade is an important part of the paper machine / board machine that ensures the condition of the surface of the roll and allows the web portion of the pulper to be led away from the roll. It is known that the doctor blades are stored in connection with a paper machine / board machine in 15 separate doctor blade shelves with the doctor blade raised directly into the doctor blade holder structure.

This application discloses a completely new type of solution for storing doctor blades. and equipping for paper machine / board machine.

20:. According to the invention, a separate storage trolley is used, comprising at least one. ···, a scraper blade from which the scraper blade can be disassembled. According to the invention, the scraper material on the roll can be disassembled through a separate measuring device and a cutting device. In its connection, the cutting device comprises a measuring device which can read out the drawn length of the doctor blade 25 and the residual length remaining on the roll. At desired points, stop: Y: Scroll feed from the scraper blade and cut the scraper blade to the desired length.

·: The scraper roller is mounted around a shaft that is rotated and the scraper: '. ·. the ribbon is guided through separate guides to the cutting device, whereby a measuring probe of the measuring device is located in the immediate vicinity of the cutting device, which measures the width of the blade supplied. The drive connected to the central unit can read out the extended blade length. in addition, the display shows the blade length remaining on the scraper blade.

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The scraper roller is housed in a separate trolley that can be moved to different positions in connection with a paper machine / board machine. Thus, the same carriage can be used in different positions with the carriage comprising a plurality of different scraper rollers and separate cutting means and gauges.

5

The method and apparatus of the invention are characterized by what is stated in the claims.

The invention will now be described with reference to some preferred embodiments of the invention shown in the figures of the accompanying drawings, which are not, however, intended to be limited thereto.

Fig. 1 is an axonometric view of a scraper roll storage carriage comprising, in accordance with the invention, separate positions for different scraper roller coils, i.e. scraper rollers 15, with separate cut-off devices for each of them, and measuring sensors for the scraper length measuring device. The truncated scraper blade is provided with holes and clamps and then placed in the roll of the paper machine / board machine.

....: Figure 2 schematically illustrates a doctor blade roll, i.e. a doctor blade 10a j, 10a2, 10a ^, in which the doctor blade blade is located on an axis which is supported by a measuring device sensor and: Y: cutting device. In addition, a scraper blade guide is located near the outflow opening. The scraper blade on the roll can also be called a scraper blade, since the cut-off scraper blade is provided with holes and the necessary fasteners.

: V: 25 v: Figure 3 is a schematic representation of the operation of the apparatus of the invention in a block diagram *.

. . ·. Fig. 1 is an axonometric view of a storage carriage · · · 3050 of doctor blade rollers 10aj, 10a2, 10a3 comprising a body R and an upper opening opening R1 and a side cover R2.

Scraper rollers 10aj, 10a2 and 10ag are located in compartments Dj, D2 and D3 of the frame R

3 111865 inside. Each scraper roller, i.e. the belt 10aj, 10a2 and 10ag, is rotatably mounted on its shaft 11 by bearings 12aj, 12a2. For example, in connection with the outlet opening Aj of the compartment Dj of the doctor blade 10aj, there is located a measuring sensor 13a j of the length measuring device 13 of the doctor blade T and a cutting device 14aj and at least one controller 15a j, 15a j. The feed length as well as the residual length remaining on the reel 10a and such dimensions are read from the display 16. When the desired / estimated feed length of the doctor blade T has been reached, the cutting device 14 is operated and the doctor blade T is cut. Similarly, similar positions D2 and Dg comprise a similar arrangement of apparatus 10 for a positioning scraper roll 10a2> 10ag. The output length can also be estimated, in which case the measuring device is not used.

Fig. 2 schematically illustrates an apparatus according to the invention comprising scraper roller stations Dj, D2, Dg, each of which stations Dj, D2, Dg has its own 15 axes llaj, llag for the scraper roller 10aj, 10a2, 10ag, axle llaj, lla2, llag 12aj, 12a2, and further, the output apertures Aj, A2a, Ag and the measuring sensors 13aj, 13a2, 13ag of the measuring apparatus 13, and the display 16 for displaying the measurement data produced from each of the stations Dj, D2, Dg. The central processing unit 100 acts as a data collector / processor and outputs along the bus e ^ the measurement sensors 13aj, 13a2, 13ag; Measuring data obtained on the basis of the information produced by the display 20 for the display 16. The cutting device 14aj, 14a2 and 14ag of each station Dj, D2, Dg can perform the cutting of the doctor blade T based on the information read from the display 16. The cut-off may be performed by the carriage 50 user. In addition to the cutting device, the apparatus of the invention may include a piercing device 200 for piercing the blades at the ends of the doctor blade. The piercing device may be arranged in connection with the cutting device: 25 or it may be a separate device independent of the cutting device and movable to the desired position D 1, D 2, D 8.

: "*: The central unit 100 may further comprise a cutting device 14aj, 14a2> in a storage trolley 50. 14ag drive controls, for example, in connection with the lid Rj of the carriage 50. Similarly, the display 30 16 may be located with the cover Rj.

4, 111865

Figure 3 is a block diagram showing the operation of the device according to the invention. From the measuring sensors 13j, 13a2 or Bag of the stations Dj, D2, Dg, the data transmission paths ej, e2, eg of dimension n are transmitted to the central unit 100 and further from the central unit 100 to the display 16 for reading station Dj and / or D2 and / or Dg. Optionally, the length of the blade T pulled out of the opening A j or A2 or Ag can be read, whereby the cutting device 14aj and / or 14a2 and / or 14ag can be used once the desired withdrawal length has been reached. The display 16 also shows the remaining blade length of the doctor blade 10aj or 10a2 or 10ag at each position Dj or D2 or Dg. Controller 15aj, 15aj ...; 15a2, Ba ^ ...; Bag, Bag ... guides the blade T in a controlled manner past each station Dj, 10 D2, Dg measuring sensor 13aj, 13a2> Bag and further past the cut-off device 14aj, 14a2, 14ag associated with station Dj, D2, Dg ....

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Claims (7)

An apparatus for treating the blade of a paper machine / cardboard machine, the blade (T) touching the surface of a roller in the paper machine / cardboard machine 5 for cleaning and maintaining the surface thereof, characterized in that a blade blade blank (T) is taken Μη a blade (10aj, 10a2, 10a3 · ..) or a harrow and the plant comprises a cutting device (14aj, 14a2 · ..) for cutting the blade material at the desired extraction or blade length, the plant comprising a measuring device (13), wherein the extraction length can be read on the basis of data conveyed to a central unit (100) by a measuring transducer (13aj, 13a2> Ba 2 ...) in it for cutting the desired blade length, and that the blade rollers (10aj, 10a2, 10a3) in each a blade blade roller station (D 1, D 2, D 3) is located in a bearing cart (50), said bearing cart (50) comprising wheels (50a, 50a2, 50a3, 50a 2) for moving the bearing cart (50), the bearing cart being easily is moved to the desired location in connection with the paper machine / cardboard machine. J * An installation according to claim 1, characterized in that the installation in connection with the central unit (100) comprises a display (16), on which the length of the drawing blade roll: (10a, 10a2> 10a3 · ..) can be read on the basis of data conveyed by the measuring sensor (13a, 13a2, 13a3 · ..) in the measuring device (13) for determining the correct cutting position. • ·> An installation according to any of the preceding claims, characterized in that the measuring sensor (13aj, 13a2 · ..) and the cutting device (14aj, 14a2 ·. ·) Are located in the immediate vicinity of a discharge aperture (Aj, A) ..) of the blade (T) in the blade blade roller station t1 * * - - (Dj, D2, D3 ...) and the blade blade blank (T) through a guide (15aj, 15a'j; 15a2, • · * ·; · '15a'2 ···) can be controlled controlled from the Creator Blade Station (Dj, D2, D3 ...) · 4. Plant according to any of the preceding claims, characterized in that the blade rollers (10a, 10a2, 10a3 · ..) are arranged on their own shaft (1 la j, l 2, II 3). , which is stored with bearings (12aj, 12a2 · ..) · 111865 Installation according to any of the preceding claims, characterized in that a data transmission path (e 2, 3 e 3) is connected to the central unit (100) from the measuring transducer (13a, 13a2, ΙΒηβ) in the measuring device (13) and that a data transmission path (64) ) from the central unit (100) to the display (16). 5 An installation according to claim 1, characterized in that the installation further comprises a perforation device (200) for perforating pull-out heels at the end (s) of the blade. 10 7. A method of treating the blade for a paper machine / board machine, which blade is intended to be associated with rolls in the paper machine / board machine for maintenance of surfaces thereof, characterized in that a blade blade blank is guided in the process from a blade blade roller (10a 2, 10a 10a) to a cutting device (14aj, 14a2, 3) and a measuring device (13) is provided, and therein a measuring transducer (13a ^, 13a2, 3), whereby the length of the blade-blade extended from the blade of the roller can be read on the basis of data conveyed by this for determining the correct cutting point for the blade (T) and that the extended blade (T) is cut to the desired cutting length by means of the cutting device (14a ^, 14a2> 1433). »0» · '0' 0 1 0 * 1 0 - · * 1 · »1 · * · • · I * · * ·>» <· 1 · • # · • · • 0> 1 • · 0 I · • Iti »» »• 0 * 0 • · 0