Shaper for dust-free paper production line

Abstract

The invention relates to a former used in the production line of paper-making of dust-free paper. The former is provided with a screen drum, closed bins are arranged at the front end and the rear end of the screen drum, air guide apron plates are arranged at the left end and the right end of the screen drum, the upper part of the screen drum is supported and connected via a pinch roller, the lower part of the screen drum is connected via a supporting roller in a transmission way, the air guide apron plates are of a vertical forming wire, the air guide apron plates of the vertical forming wireare arranged at the inner side of a forming frame, and the lower ends of the air guide apron plates of the vertical forming wire are supported via a sealing roller of the forming frame; the screen drum comprises a left screen drum rotating along the clockwise direction and a right screen drum rotating along the counterclockwise direction; a first fiber dispersing device which is rotated along thecounterclockwise direction is arranged at the left lower side of the left screen drum, and a second fiber dispersing device which is rotated along the clockwise direction is arranged at the right lower side of the right screen drum. The former has the advantages of simple structure, even fiber blanking, no partial stacking of the fiber, no paper wrinkling and uniform paper forming thickness, and is suitable for paper forming in the production line of paper-making of the dust-free paper.

Description

Technical field [0001] The invention relates to a former used in a dust-free paper production line. Background technique [0002] In the dry-type dust-free paper production line, the fiber is blanked into the forming net in the dry-type dust-free paper production line through negative pressure. The former is the key component to make the fiber blanking evenly spread, which directly affects the quality of papermaking , Is the heart component of the entire papermaking production line. The prior art former adopts an internally inclined wind deflector, and at the same time, the rotation of the screen of the screen drum causes the fiber to fall at the bottom of the middle of the screen drum. Therefore, during the process of fiber blanking and forming paper, it is easy to happen The blanking material in the middle of the screen drum is partially stacked, and white masses are produced, which makes the thickness of the paper uneven. Summary of the invention [0003] The purpose of the p...

AI Technical Summary

Problems solved by technology

The prior art former adopts an inwardly inclined air guide enclosure, and at the same time, the screen of the screen drum rotates so that the fibers are blanked at the bottom of the middle of the screen drum. Therefore, in the process of fiber blanking and forming paper, it is easy to occur Partial stacking of blanking materials in the middle of the screen drum, resulting in white balls, making the paper forming thickness uneven

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