Plywood veneer production equipment: difference between planer and rotary cutter

The planer is the main equipment for production of veneer and thin wood. According to the classification of the planer relative to the horizontal direction of movement, the wood planer can be divided into two types: vertical and horizontal, and the planer can be divided into two types according to whether the planing direction is vertical or parallel to the length of the wood fiber. Lateral planer and longitudinal planer. The modern cutting machine has only one-third of the external dimensions of the cutting machine. It has a compact structure, light weight, and easy installation and adjustment. It can be continuously produced, saves the time for loading wood, and has high production efficiency. The work is extremely smooth and almost sounds. Less than noise.

The thin veneer sliced by the slicing machine has a beautiful and realistic texture, but the width of the slicing veneer is narrow, generally about 400 mm or less, all of which need to be spliced, the utilization rate of the wood is low, and the productivity of the slicing is only peeling. About 10% of the current; the current use of the planing machine only slicing thin wood, domestic planing machine cutting the maximum width of up to 720mm.

The rotary cutter is also one of the main equipments for producing single boards. In a sense, it is more widely used than the planer. Rotary cutting machine according to whether the wood section rotates around its own axis can be divided into two types of concentric rotary and eccentric rotary cutting. The concentric rotary cutter is further divided into a card shaft rotary cutter and a cardless shaft rotary cutter. Eccentric peeling provides an aesthetically pleasing radial pattern, but productivity is lower than concentric rotation.

The rotary cutter has a large volume and a complex structure. There is a need for log centering on the logs before the logs are turned on the machine. If the centering is inaccurate, the broken single boards or the narrow single boards will be unscrewed when starting the rotary cutting. The more broken boards or narrow boards, the more sapwood veneer material is lost, which is not conducive to continuous production. Logs, irregular cross-sections, and large or small ends (pointedness) at the ends of the logs cause boards to be unscrewed and waste wood, and when the diameter of the log is reduced to a certain degree, it cannot be continued. Cut (ie the remaining wood core causes wood waste). The cardless shaft turning machine can realize the wood core rerotating, first the raw wood is placed on a card shaft rotary peeler, and then the remaining wooden core is conveyed to the cardless shaft rotary peeling machine, and the current wooden core can be Rotary cut to a diameter of Φ 25mm, even smaller.