The band saw blade tensioning device of the band saw machine can give the upper saw wheel elasticity to ensure the stability of the tension of the band saw blade in operation; the old type uses a spring or lever weight mechanism, and the new type uses a pneumatic and hydraulic tensioning device. The guide device is commonly known as a saw card to prevent twisting or swinging of the saw blade when sawing; the lower saw card is fixed at the lower end of the bed, and the upper saw card can be adjusted up and down along the vertical slide; the saw card structure has roller and slider The slider type is made of hardwood or wear-resistant plastic.
The band saw machine uses a circular endless band saw blade as a sawing tool, and performs a one-way continuous linear motion on two saw wheels to cut wood. The band saw machine is mainly composed of a bed, a saw wheel, an upper and lower wheel lifting and tilting device, a band saw tensioning device, a saw guide, a table, a guide plate and the like.
The band saw saw wheel has a web-type upper saw wheel and a web-type lower saw wheel; the lower saw wheel is a driving wheel, the upper saw wheel is a driven wheel, and the weight of the upper saw wheel should be 2.5 to 5 times lighter than that of the lower saw . The cutting speed of the band saw blade is usually 30 ~ 60m / s. The upper saw wheel lifting device is used for loading and unloading and adjusting the tension of the band saw blade; the upper saw wheel pitch device is used to prevent the band saw blade from falling off the saw wheel during sawing.
wood band saw
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