DE1611759A1 - Cell suction roll for paper drainage - Google Patents

Description

FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK AKTIENGESELLSCHAFT KOLN-NIPPES

to write from January 26th, 1968 PatrBr / H / St. Cl. A 182

• .- ■ Ί61Ί759

Cell suction roll for paper drainage

The invention relates to a cell suction roll for roll presses to the. Drainage of paper webs made from a metal Rolling core and a rubber jacket concentric to it and axially extending suction channels distributed in the circumferential zone has, into which open from the outside through the rubber jacket radial channels. Moisture pressed out of the paper web runs through the radial into the axial channels and is located by one on the face of the roller Suction head sucked out.

In the known embodiments of such rollers are the axial channels formed by being in the circumferential zone of the roller core axially extending metal soles evenly Distributed upright and sunk over the circumference and "under formation of a distance between the roller core and the rubber jacket of one Surrounded by hard rubber jacket or anchored in it with the free edge are (DRP 667 334 and 668 312). These embodiments are manufactured once by the necessary fastening, every rail in the roller core and especially through the application of the hard rubber jacket, which was already before vulcanization, so in the plastic state on a base of gaps forming supports would have to be done, very complicated. Also lets it can only be prevented with special effort that the plastic

penetrates less into the cells and thus the

Q09883 / 0588 ~ ² ""'

FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK AKTIENGESELLSCHAFT KÖIN-NIPPES

to write from 01.26.196S Pat: Br / H / St. Cl. A 182 βι «μ ^

hole depth of the radial holes and the cell cross-section is changed.

Furthermore, in practice there is not only a need to be new produced cell suction rolls with the loss of those previously used Exchanging rubber or wet press rollers, but the aim is to replace the rollers previously used, which are in the essentially consist of a metal core with a rubber pad, without any particular difficulty converting it into cell suction rollers. The subsequent equipment of such a roller with the rails and the rubber jacket only supported by these is but, as stated above, too cumbersome.

Finally, under the action of the pressing pressure, lateral forces occur at the countersunk points of the rails in the hard rubber jacket which can lead to a loosening of the rail seat over time.

The invention is based on the object of avoiding these disadvantages and of creating an embodiment that allows the conversion makes conventional rubber or wet press rolls to cell suction rolls economically feasible.

The solution according to the invention consists in that as axial suction channels in the rubber jacket resting on the roller core Vulcanized pipes are used.

00 9883/0588

Firm

FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK AKTIENGESELLSCHAFT KÖLN-NIPPES

from January 26th, 1968 Pat: Br / H / St. Eq. ΑΊ82 μ £

Around the radial channels leading from the outside into the suction channels To be able to lay them as close together as possible in the circumferential direction, it is expedient to use tubes with a rectangular opening cross-section that is as narrow and high as possible.

It is advantageous to place the roller surface in the area of the outlet openings provide grooves in the radial channels, so that it does not get directly into the radial channels Liquid is supplied to the openings through the grooves.

^ both perpendicular as s also ) Λ

Two or more outlets can also open through the grooves that run parallel to the roller axis be connected to each other. Running on the roller surface Up to now, grooves are only known for unperforated couch and wet press rolls (DRP 306 190).

Using the exemplary embodiments of the subject matter of the invention shown in the drawing, details are explained:

Fig. 1 shows a section of a line suction roller after the Invention in cross section again. -

Fig. 2 and Fig. 3 each show a top view of a cell eye roller.

To produce the cell suction roll according to the invention, on the metal core 1, which by removing the Gtunmimantels can be obtained from a conventional rubber or caliper press roll,

009883/0588

FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK AKTIENGESELLSCHAFT KÖLN-NIPPES

ium moved from January 26th, 1968 Pat: Br / H / St. Cl. A 182 βι _βμ

a hard rubber jacket 2 is applied and vulcanized. In the Hartgümmimantel axial grooves 3 are milled, which serve to accommodate the tubes 4, which before being introduced into the Grooves 3 with a casing 5 made of unvulcanized hard rubber have been provided. Sann becomes the unvulcanized Soft rubber jacket 6 placed over hard rubber jacket 2. Afterward the border is vulcanized again. After that, the radial channels 7 drilled and finally the grooves 8 milled.

009883/0588

Claims (1)

FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK AKTIENGESELtSCHAFT KOLN-NIPPES ^{from January} 26th, 1968 PatsBr / H / St. Gl * A 182 ^BWt * to write ' .Company Patent claim before Cell suction roller for roller presses for dewatering Paper webs made from a metal roller core and one concentric to it (Jummimantel ") and has axially extending suction channels distributed in the circumferential zone into which through from the outside the rubber jacket open radial channels, characterized in that as axial suction channels in the Tubes (4) vulcanized into the roller core (1) resting on the roller core (2) are used. Cell suction roll according to claim 1, characterized in that that the axially extending tubes (4) have a rectangular opening cross-section which is as narrow and as possible is high. . "■ - ·., Cell suction roll according to claim 1 or 2, characterized thereby that the roller surface in the area of Removal openings of the radial channels (7) with grooves (8) is provided; - 00 98 83/0 5 88 L e r s e i t e