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A kind of flattening and drying method of rotary cut veneer

A drying method and veneer technology, applied in 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: 2015-11-25
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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  • A kind of flattening and drying method of rotary cut veneer
  • A kind of flattening and drying method of rotary cut veneer
  • A kind of flattening and drying method of rotary cut veneer

Examples

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Embodiment Construction

[0022] The flattening machine is shown in Figure 3(a). The flattening machine is composed of a motor 1, a main deceleration device 2, a chain transmission device 3, a driving roller 4, a loosening roller 5, a loosening roller support frame 6 and an adjustment pad 7. The characteristic 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 gear shafts fixed on the gear shaft with keys. A-type special-shaped gears and B-type special-shaped gears are alternately superimposed and combined. 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 128mm, the thickness of the wedge-shaped teeth is 5mm, the vertical distance between adjacent tooth tip angles is 5mm, the height H of the loosening teeth is 3mm, and the tooth...

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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 a rotary-cut veneer. Background technique [0002] Veneer is an important unit form of wood-based panels. The wood-based panels composed of veneers include plywood and veneer laminates, and their output accounts for about 50% of the output of wood-based panels in my country. There are problems such as deformation and cracking during the drying process. [0003] According to the technology of wood-based panels, the veneer is unfolded according to the Archimedes curve or the 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 (loose surface). The thicker the veneer, the greater the difference between the arc lengths of the tight side and the loose side, and th...

Claims

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Application Information

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Patent Type & Authority Patents(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