Technology for manufacturing glulam

Abstract

The invention discloses a technology for manufacturing glulam, comprising the following steps: scrimming; sieving fine material and coarse material; drying fine material and coarse material respectively and glue blending; orientated lay-up, respectively laying up two fine wood stick layers on front face and back face of a coarse wood stick layer to manufacture a slab; and hot-pressing the slab to form a sheet. According to the technology, leftover material of waste wood is rolled and scrimmed to the fine wood stick layers and the coarse wood stick layer, which are then dried, glue-blended and orientated-laid, respectively, the two fine wood stick layers are laid up on the front and back faces of the coarse wood stick layer, which can not only ensure flatness on the surface of the sheet, but can also make full use of the leftover material of waste wood, thus the utilization rate of woods is enhanced; in addition, the technology with simple production process can manufacture integrated sheet having high strength and nail-holding ability, without paying attention to the processing precision of wood sticks.

Description

technical field [0001] The invention belongs to the field of plate processing, and in particular relates to a preparation process of laminated materials. Background technique [0002] Glulam is glulam. Existing glulam is spliced ​​by wooden strips. Wooden strips are sawn from logs, short side materials and other materials. There are mainly the following technical problems in manufacturing: [0003] (1), the manufacturing process needs to go through many processes such as planing and cutting, the production process is relatively complicated and the efficiency is low; [0004] (2), the yield rate is low, the discarded scraps produced in the planing process cannot be reused, and the waste of resources is serious; [0005] (3) Since the glulam is spliced ​​by wood strips, there are strict requirements on the planing accuracy of the wood strips. If the planing accuracy is not accurate enough, it is difficult to guarantee the dimensional tolerance during processing, which will af...

AI Technical Summary

Problems solved by technology

[0003] (1), the manufacturing process needs to go through many processes such as planing and cutting, the production process is relatively complicated and the efficiency is low;

[0004] (2), the yield rate is low, the discarded scraps produced in the planing process cannot be reused, and the waste of resources is serious;

[0005] (3) Since the glulam is spliced ​​by wooden strips, there are strict requirements on the planing accuracy of the wooden strips. If the planing accuracy is not accurate enough, it is difficult to guarantee the dimensional tolerance during processing, which will affect the overall quality of the board.

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