SU787532A1 - Multishamber roll of paper-making machine - Google Patents

Description

end partitions provided with Kachei bodies and end seals. When the cylinders rotate, the longitudinal partitions move one relative to the other and / thereby, the suction zone 4 changes.

The design flaws, first of all, include the impossibility of controlling all the suction zones. An increase in adjustable suction zones would lead to a significant increase in the diameter of the suction roll and, thus, to an increase in its metal intensity. In addition, the adjustment of the suction zone occurs only in adjacent chambers, which excludes the possibility of regulating the suction zone in diametrically opposite chambers. The use of tape rubber seals, which are the moving wall of the suction chambers, leads to the fact that during the creation of a vacuum, these tapes are pressed against each other, changing the chamber volume. The presence of end partitions also complicates the design of the shaft,

In connection, the shaft is difficult to manufacture, has a high metal consumption and a low degree of reliability.

The purpose of the invention is to simplify the design.

This goal is achieved by the fact that the shaft has a fixed core with longitudinal grooves, the number of which corresponds to the number of chambers, the longitudinal partitions being fixed on the core between the grooves and provided with removable slats with slots in which seals are installed.

Fig, depicts a multi-shaft, a longitudinal section; in FIG. 2, section A-A in FIG. 1.

The shaft contains a perforated jacket 1 and suction chambers 2, the shaft is equipped with a fixed core 3, in which longitudinal grooves 4 are made, passing into channels 5, between the grooves 4 are fixed longitudinal partitions 6, equipped with seals 7,

Holes are provided on the partitions b, which allow the removable strips 8 with grooves to be fixed from two sides to the partitions. In the latter, the same seals 7 are placed. The strips 8 are made of different widths.

Shaft works as follows.

Through the perforation of the jacket 1, the water-air mixture enters the chambers 2, from where it is discharged to the outside through the slots 4 and the channels 5 of the core.

Changing the width of the various zones of suction is necessary when switching to the production of another type of product.

The width of the suction zone is adjusted by means of removable strips 8 having different widths. Such a design allows the creation of suction (discharge) zones of practically any width and 5 in any part of the cylindrical surface of the jacket 1,

The number of chambers of the suction is almost unlimited and it depends on the station. This allows you to create, if necessary, a smooth change in vacuum or pressure from camera to camera, and the perforated surface of the shirt is used to the maximum.

Claims (1)

Invention Formula Multichamber shaft papermaker-. The machine comprises a perforated jacket and formed by suction chamber partitions with a seal longitudinally installed in it, characterized by the fact that / in order to increase reliability in operation and simplify the shaft design, it has a fixed core with longitudinal slots, the number of which corresponds to moreover, the longitudinal partitions are fixed on the core between the slots and provided with removable 0 strips with slots, in which up.Potneni are installed. Sources of information taken into account in the examination 1, Eidlin I, I, Paper and finishing machines, 1970, p. 211-213, 2, Japan Patent t-50-27083, class, 39 B 503, 3, Patent of Germany No. 1068991, class, 55 d 16/10, 1964, Q4, Patent of Germany. 1095104, Cl, 55 d 16/10, 1965 (prototype).