The cage is the main component on which the paper web is formed in the cylinder paper machine. It is required to filter water evenly and not produce excessive agitation in the mesh tank when rotating. The cage should have sufficient rigidity and accurate geometric dimensions

The net trough structure of the cylinder paper machine is usually made of wood, and the main part of the trough ring is sometimes lined with metal (usually stainless steel), and sometimes also made of plastic. The so-called mesh groove ring refers to the annular gap between the surface of the mesh cage and the semicircular body.

The sandwich former in the paper machine represents a type of former in which the headbox jet is sprayed between two converging meshes.1. The paper web formed on the ordinary Fourdrinier wire or round wire is not uniform in the thickness direction

The forming wire is an important part of the forming device on the paper machine. It is driven by a flat roller or other driving rollers, so that the pulp is continuously filtered and dehydrated on the net to form a wet paper layer, and the wet paper layer is transported to the flat roller.

The press type and number of passes in the press section of a paper machine are selected according to the dewatering characteristics determined by the ratio of the raw materials of the paper and certain quality requirements of the paper

The development of the dryer section of the paper machine:1. Single dry blanket drying device of paper machineThe drying section of a traditional multi-cylinder paper machine is equipped with two upper and lower drying cylinders with double blankets.