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Plywood veneer production equipment: the difference between planer and rotary cutting machine

Views: 0     Author: Site Editor     Publish Time: 2022-03-03      Origin: Site


Planers are the main equipment for the production of veneers and microfiber. According to the direction of movement of the planer relative to the horizontal surface to classify, the wood planer can be divided into vertical and horizontal two categories, according to the cutting direction relative to the length of the wooden fiber vertical or parallel, and the planer can be divided into horizontal planer and longitudinal planer. The shape and size of the modern planer is only 1/3 of the past planer, compact structure, light weight, easy to install and debug; can be continuously produced, saving the time of loading wood, high production efficiency; the work is extremely stable, almost no noise can be heard.

The thin veneer texture of the planer planer is beautiful and realistic, but the width of the planer veneer is narrow, generally about 400 mm or more, all need to be spliced, the wood utilization rate is low, and the productivity of the planing is only about 10% of the rotary cutting; the planer currently used only cuts thin wood, and the maximum cutting width of the domestic planer can reach 720mm.

Rotary cutting machine is also one of the main equipment for the production of veneers, in a sense, it is more widely used than planers. According to whether the wood segment rotates around its own axis, the rotary cutting machine can be divided into two categories: concentric rotary cutting and eccentric rotary cutting. Concentric rotary cutting machine is divided into card shaft rotary cutting machine and card shaft rotary cutting machine. Eccentric rotary cutting results in a beautiful radial pattern, but with lower productivity than concentric rotary cutting.

The rotary cutting machine is large in size and complex in structure, and the log centering is required before the card shaft rotary cutting machine logs are machined, and if the centering is not accurate, the intermittent broken veneer or narrow veneer will be spun out when the rotary cutting begins. The more broken veneer or narrow veneer, the more sapwood veneers of good material are lost, which is not conducive to the continuity of production. The log has bending, irregular cross-sections and large and small heads (sharpness) at both ends, which are easy to cause the spun out of the veneer to waste wood for broken veneers, and when the diameter of the log is reduced to a certain extent, it can no longer continue to spin cut (that is, the remaining wood core causes wood waste). Card shaft-free rotary cutting machine can realize the wood core and then rotary cutting, first put the log in the card shaft rotary cutting machine rotary cutting, and then the remaining wooden core is then transported to the card-free shaft rotary cutting machine to spin cutting, the current wood core can be rotated to a diameter of Φ 25mm, or even smaller.


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