Double-sided planer refers to the longitudinal slicing of small-diameter wood from both sides of the small-diameter wood at the same time. Before starting processing, adjust the initial position of the planing knives on both sides, accurately align the knives, and after the adjustment, the planing knives carry out longitudinal feed slicing, and the shear stress brought by the rake surface during slicing continuously squeezes the wood on both sides of the small-diameter wood , resulting in the bending and shearing of the cutting wood, and a small gap will be formed in front of the cutting edge. When the shear stress on the cutting wood on both sides reaches a critical value, the cutting wood will deform.

With the continuous longitudinal feeding of the planer, the undeformed wood in front of the cutting edge is continuously squeezed by the stress brought by the cutting edge, and the cutting wood is continuously deformed, so that two smooth veneers can be prepared at the same time at the end of each planing. After one slicing, the slicing knife returns to the initial working position, and the slicing knives on both sides feed 2mm laterally at the same time for the next slicing, and this cycle is repeated until the remaining thickness of the small-diameter wood is 20mm.

Advantages of double-sided longitudinal slicing

Double-sided planer and longitudinal slicing on the two opposite planes of the small-diameter wood can simultaneously obtain equal-thickness and smooth veneers, and the remaining fixed core boards need to be re-stacked after each slicing and along Slicing is performed again perpendicular to the direction of the slicing surfaces on both sides of the fixed core material. Therefore, Double-sided planer has the following obvious advantages over other slicing methods:

• The Double-sided planer can be continuously produced, and the two opposite planes of the small-diameter wood are sliced at the same time, which improves the degree of mechanization and automation. The small-diameter wood needs only one clamping to complete the overall slicing, saving repeated installation It saves manpower and material resources and greatly improves production efficiency.

  
  

• Because the remaining fixed core board needs to be sliced again after each slicing, the remaining waste after each complete processing is only the two sides of the board skin and the fixed core material of 20mm×20mm in the middle, which greatly improves the quality of small-diameter wood. yield, thereby improving economic efficiency.

  
  

• Because the direction of each slicing is carried out along the fiber direction of the small-diameter wood, the required shear stress is small compared to the slicing in the vertical direction of the wood fibers, and it will not cause the veneer produced by the transverse slicing. crack. When double-sided longitudinal slicing, the noise is small, the work is stable, and the installation and debugging are easy.

Application：

The Double-sided planer veneer process not only saves time, but also reduces manpower and greatly improves the processing efficiency; and the intermediate fixed core board processing technology is added to the Double-sided planer, which greatly improves the double-sided planing of small-diameter wood. The cutting yield has great economic benefits for actual processing.

Through the actual analysis and calculation of the yield rate, when the diameter of the small-diameter wood is larger, the yield rate is correspondingly higher, and vice versa. Therefore, in the actual slicing of small-diameter wood, small-diameter wood with larger size should be selected as much as possible, so as to improve the yield of small-diameter wood, avoid waste of wood resources, and improve economic benefits.