Semi-dry airflow forming preparation process of fiberboard

Abstract

The invention discloses a semi-dry type airflow forming preparation process of a fiberboard, and belongs to the field of fiberboard preparation processes. A plurality of guide rods are erected on a mold, the guide rods are movably sleeved with air guide glue overflow balls, airflow is intermittently supplied to the two ends of the mold, the introduced air flow is beneficial for playing a preliminary scattering role on the agglomerated fibers on one hand and pushing the air guide glue overflowing ball to horizontally move on the guide rod on the other hand, and the magnetic agglomerate breaking component at the bottom of the air guide glue overflowing ball mechanically scatters the agglomerated fibers in the moving process, so that the fiber carding effect is further improved; and a magnetic field is intermittently applied below the mold, so that the magnetic cluster breaking component moves up and down in a reciprocating manner, the scattering depth is effectively adjusted, rubber materials are uniformly attached to fiber yarns along with overflowing of the rubber materials and airflow under the pressure applying condition, the adhesive forming effect is improved, and bubbles formed at the air guide glue overflowing ball overflowing positions easily blow away small clusters.

Description

technical field [0001] The invention relates to the field of fiberboard preparation technology, more specifically, relates to a semi-dry airflow forming preparation technology of fiberboard. Background technique [0002] Fiberboard is a wood-based panel made of wood fiber or other plant fiber, applied with urea-formaldehyde resin or other suitable adhesives. The production process of fiberboard is divided into three types: wet method, dry method and semi-dry method. The wet production process uses water as the carrier of fiber transportation. Its mechanism is to make use of the friction force generated by the interweaving of fibers, the bonding force generated between the surface molecules of the fibers and the cementing force generated by the fiber content to make a certain strength. fiberboard. The dry production process uses air as the fiber transport carrier. The fiber preparation is a one-time separation method. Generally, no fine grinding is required, and adhesives n...

AI Technical Summary

Problems solved by technology

[0003] However, in the production of semi-dry fiberboard, because the fiber has not been dried, the moisture content of the fiber is high, and it is difficult to control to a uniform constant value. The fiber is easy to agglomerate during molding and preparation. If the agglomerated fiber is not broken up, it will cause product damage. Uniformity is difficult to guarantee

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