Reasons for blade wear of veneer rotary cutting machine and methods to extend its service life
Single board rotary cutting machine is an indispensable equipment in wood processing. It cuts into wood with blades and processes circular logs into long strip shaped raw materials. However, blade wear is inevitable during use, which not only affects machining efficiency but also reduces machining quality.
The main reasons for blade wear include:
Uneven wood material: The uneven thickness of wood causes uneven force on the blade during cutting, leading to increased wear.
Discontinuity of mechanical operation: During the process of mechanical operation, some of the broken veneers cut out cannot continue to be used, which indirectly increases the wear of the blades.
The consumption of the mechanical end by the card head: The fixed wood card head will consume the mechanical end, causing the blade to become dull and the operating speed to decrease.
The inherent consumption of cutting tools: As the usage time increases, the blade will gradually wear out until it needs to be replaced.
To extend the service life of the veneer rotary cutting machine blades, the following methods can be adopted:
Choose the appropriate blade: Choose a blade with suitable hardness and sharpness according to the different processing materials. At the same time, blade material is also very important. Generally, the materials of rotary cutting machine blades include high-speed steel, hard alloy, ceramics, etc. Different materials also have different service lives.
Regular inspection and maintenance: Regularly inspect the wear of blades and replace severely worn blades in a timely manner. At the same time, keep the tool and tool holder clean to prevent the accumulation of chips and impurities, which may affect the cutting effect.
Optimize cutting parameters: Adjust cutting speed, feed rate, and cutting depth according to actual machining conditions to avoid cutting too much material at once, and perform step-by-step cutting to reduce blade load.
Heat treatment and coating treatment: Surface heat treatment, infiltration layer treatment, thermal spraying treatment or coating treatment are carried out on the blade to improve its wear resistance and corrosion resistance.
Correct installation and adjustment: Ensure the correct installation and adjustment of the blade to avoid wear and reduced machining accuracy caused by looseness.
Reasonable selection of cutting fluid: Use appropriate types and amounts of cutting fluid to reduce cutting temperature, minimize friction, and improve machining quality and efficiency.
Through the above methods, we can effectively extend the service life of the veneer rotary cutting machine blades, improve processing efficiency and quality, and achieve the goals of economy, practicality, and environmental protection. At the same time, it also helps to reduce resource waste and enhance the overall competitiveness of the wood processing industry.
