Method for flattening and drying rotary cut veneer

A drying method and veneer technology, applied to veneer presses, plywood presses, other plywood/plywood appliances, etc., can solve problems such as cracking and veneer deformation, reduce energy consumption, solve deformation, and improve production efficiency Effect

Active Publication Date: 2014-01-22
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for flattening and drying rotary-cut veneers, which can effectively solve problems such as deformation and cracking of veneers

Method used

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  • Method for flattening and drying rotary cut veneer
  • Method for flattening and drying rotary cut veneer
  • Method for flattening and drying rotary cut veneer

Examples

Experimental program
Comparison scheme
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Embodiment

[0022] As shown in Figure 3 (a), the flattening machine is composed of a motor 1, a main reduction device 2, a chain transmission device 3, a driving roller 4, a debonding roller 5, a debonding roller support frame 6 and an adjusting pad 7, and its The feature is that the flattening roller (as shown in Figure 3(b)) is composed of a special-shaped gear shaft system, and the special-shaped gear shaft system consists of a gear shaft with locking screws at both ends and 40 keys fixed on the gear shaft. A-type special-shaped gears and B-type special-shaped gears are alternately superimposed and combined. The A-type and B-type special-shaped gears are evenly distributed with 8 wedge-shaped teeth in the circumferential direction. °. The diameter of the flattening roller is 128 mm, the thickness of the wedge teeth is 5 mm, the vertical distance between adjacent tooth tip angles is 5 mm, the height H of the loosening teeth is 3 mm, and the tooth tip angle β is 90° (as shown in Figure 3...

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Abstract

The invention discloses a method for flattening and drying a rotary cut veneer. The method for flattening and drying the rotary cut veneer includes the following steps of rotary cutting of the veneer, grooving of a loose face of the veneer and drying and shaping by a hot press. A series of line-segment-shaped wedge-shaped grooves are formed in the loose face of the rotary cut veneer through wedge-shaped teeth of a flattening roller of a flattening machine and the veneer is flattened. The hot press is used for carrying out drying and shaping on the flattened veneer and the problems of deformation, cracking and the like of the rotary cut veneer can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels and their manufacture in the wood-based panel industry, and relates to a flattening and drying method for rotary-cut veneers. Background technique [0002] Veneer is an important unit form of wood-based panels. Wood-based panels composed of veneers include plywood and laminated veneer lumber, and their output accounts for about 50% of my country's wood-based panel production. And there are problems such as deformation and cracking during the drying process. [0003] According to wood-based panel technology, the veneer is unfolded according to the Archimedes curve or involute during the rotary cutting process. Since the veneer has a certain thickness, the arc length of the outer side (tight surface) of the veneer is greater than Internal test (pine noodles). The thicker the veneer, the greater the arc length difference between the tight side and the loose side, and the greater the existi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D5/00B27F5/02B27D3/00
Inventor 余养伦祝荣先于文吉任丁华
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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