Multi-layered structural artificial board screening paving method

Abstract

The invention belongs to the manufacture of artificial boards, in particular to a multi-layered structural artificial board screening paving method; the invention is characterized in that a depiler is used for dividing raw materials mixed with screenable adhesive into two parts, to form two descending material streams with one in front and one at rear according to production assembly direction, the two descending material streams respectively fall on a multi-layered vibrating screen with the front and rear parts inclined to a middle opening, the material converges to the middle opening and fall after passing through layered screening of screens with different apertures in the process of descending along the screen surface towards the middle opening under high frequency vibration, the middle openings of the layers are gradually wider from up to down, and finally the material forms a material stream falling vertically in the arrangement of narrow-wide-narrow, the material contacts with a blank plate moving forwards and turns 90 degrees to lay horizontally on the blank plate to form a layered paving board blank. The invention can solve the technical problem that the glue-mixed material forms a narrow-wide-narrow layered material stream after screening in the process of conveying.

Description

Technical field: [0001] The invention relates to the manufacture of wood-based panels, in particular to a slab laying method for manufacturing multi-layer structure wood-based panels. Background technique: [0002] With the development of the economy, people's requirements for product quality are increasing day by day, and the wood-based panels are also developing into multi-layer structures. The material particles in the center layer of this multi-layer wood-based panel are the largest, and the material particles gradually become thinner from the center to the two sides, so that a smooth and flat surface of the board can be obtained, and the quality and appearance of the product can be improved. To meet this requirement, slabs must be paved in layers. At present, the commonly used method is to use the thinnest material to pave the bottom layer on the slab, and then use the thicker material to lay the second layer on the bottom layer, that is, the material of the rear layer...

AI Technical Summary

Problems solved by technology

Taking the paving of three-layer slabs as an example, 2-3 additional paving heads are required, and 1 each for the feeding system and glue mixing machine. Of course, the energy consumption also increases.

In addition, layered paving in sequence means that the time for paving and the floor space of paving equipment increase. The former reduces productivity, and the latter requires more workshop space.