Process for manufacturing high-strength laminated wood board

Abstract

The invention discloses a process for manufacturing a high-strength laminated wood board. The process comprises the following steps of: cutting a log in a rotary mode to form veneers with a certain thickness by using a rotary cutting machine, and drying; arranging the dried veneers in the direction that wood grain fibers are consistent at high temperature under high pressure, and bonding to form a board block with a certain thickness; splitting the board block to form laths with a certain thickness along the length direction of wood growth (the direction of the wood grain fibers) according to requirements; cutting the laths into short laths with different lengths; and arranging the short laths of which the narrow surfaces are coated with glue in a staggered mode, and splicing to form a high-strength laminated wood core board with a certain length and width. In the laminated wood board manufactured by the process, a transverse arrangement structure of battens of the conventional board core material is changed into a longitudinal arrangement structure to overcome the defect that the conventional board is easy to warp and deform; therefore the planing quantity of machining the battens is reduced, leftovers formed in the process of machining wood also can be utilized, namely the leftovers serving as scraps are changed into valuables, and the utilization rate of the wood thus is improved greatly; and economic forests with short growth period can be used as raw materials for core board layers, so the materials are saved, the cost is reduced, natural forests are protected, and environment friendliness is facilitated.

Description

technical field [0001] The invention relates to a manufacturing process of wooden boards, in particular to a manufacturing process of high-strength joinery boards whose core boards are arranged vertically. Background technique [0002] At present, blockboard has been widely used in furniture, interior decoration, carriage and ship interior decoration and other fields. The existing blockboard production process generally uses multi-blade saws to first saw the log into a certain thickness of unequal width. , and then use a band saw or multi-blade saw to cut into small wooden strips with a certain thickness and different widths. Therefore, the existing blockboard core boards are all made of thicker small wooden strips in the width direction. become. Since the width of each kerf of the saw blade is 1.6 mm to 4 mm, more wood chaff is produced, resulting in a large loss rate of wood and a waste of logs. [0003] The main performance of the blockboard is determined by the materia...

AI Technical Summary

Problems solved by technology

Since the width of each kerf of the saw blade is 1.6mm to 4mm, more wood chaff is produced, resulting in a large loss rate of wood and a waste of logs

[0003] The main performance of the blockboard is determined by the material and structure of the core layer. The structure of the core layer of the blockboard is mainly used to evaluate the performance of the blockboard for the strength, warpage and flatness of the blockboard. Technical parameters play a decisive role. As mentioned above, the existing core boards of blockboards are made of small wooden strips that are staggered in the width direction. Due to the warpage caused by the stress in the fiber direction of the wood strips, in order to overcome the above defects, the blockboard core boards with a horizontally arranged spliced ​​structure have to use some expensive natural forests or imported wood with a long growth cycle as materials, and in When the core board is made, the dry humidity requirements of the wood or wood strips are also high, and they must be dried by a special drying system for the wood or wood strips, which requires power consumption, steam or waste combustion heating, wasting energy and polluting the environment. , the use of multi-blade saws or band saws in the process of processing core boards has a large amount of planing, resulting in a waste of wood resources

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