Introduction And Use Of Band Saw

The saw wheel is divided into a sprung upper saw wheel and a web-type lower saw wheel; the lower saw wheel is a drive wheel, and 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 the lower saw. The cutting speed of band saw blades is usually 30~60m/s. The upper saw wheel lifting device is used for loading and unloading and adjusting the elasticity of the band saw blade; the upper saw wheel tilting device is for preventing the band saw blade from falling off from the saw wheel when sawing. The band saw blade tensioning device can impart elasticity to the upper saw wheel, and ensure the stability of the band saw blade during operation; the old type uses a spring or lever weight mechanism, and the new type uses a pneumatic and hydraulic tensioning device. The guiding device is commonly known as a saw card to prevent twisting or swinging of the band saw blade during 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 sliding rail; the saw card structure has a roller type and a slider type The slider type is made of hardwood or wear-resistant plastic. The band saw machine is widely used in the wood industry, and has many types of machines. According to the process, it can be divided into: large band saw, re-cutting band saw machine and joinery band saw machine; according to the position of the saw wheel: vertical, horizontal And inclined, vertical and divided: right and left; according to the band saw installation method: fixed and mobile; according to the number of combinations: ordinary band saw and multi-band saw Machine and so on. General woodworking band saw machine and woodworking sports car

The sawing machine uses a saw as a tool, and the sawing or band saw is reciprocated, or the circular saw is rotated to cut the scored wood. Common sawing machines include band saws and circular saws. The sawing injury accident mainly includes saw cutting damage, saw blade break ejection, and wood hit damage. Sawing damage is prevented by the use of safety guards and proper operation.
1 Band saw blade thickness should be compatible with the matching band saw wheel. Avoid the use of large thickness saw blades for small wheels, causing breaks and injuries.
2 The serrations should be sharp and the depth of the teeth should not exceed 1/4 of the width of the saw blade.
3 Band saw blade welding should be firm and flat, the joint wood should be more than 3, the length between the two joints should be more than 1/5 of the total length, the joint thickness should be consistent with the thickness of the saw blade.
4 Strictly control the transverse crack of the band saw blade. If the crack is too long, it should be cut and re-welded (see Table 1).
5 The track of the large band saw machine should be straight, with the limit switch at both ends, and warning bars should be set on both sides of the sports car.