BANDSAW

Japanese Patent JP2023150492

A

To provide a bandsaw capable of efficiently and automatically adjusting, a drive speed, without experienced techniques.SOLUTION: A bandsaw 10 comprises: an endless saw blade 24; a pair of wheels 26 to which the saw blade is wound; cutting means 20 having a rotation motor 28 which is connected to one wheel and is rotated; and feeding means 30 having a feeding motor 32 which moves the cutting means in a cutting direction. The bandsaw further comprises: a vibration measurement sensor 40 for detecting vibration which is generated in the cutting; a saw blade vertical position measurement sensor 50 for detecting a height position of a saw blade; a saw blade horizontal position measurement sensor 51 for detecting a horizontal position of the saw blade; a determination part 60 for comparing a measured value with a vibration set value of the vibration measurement sensor, a measured value with a saw blade height change set value of the saw blade vertical position measurement sensor, and a measured value with a saw blade position set value of the saw blade horizontal position measurement sensor; and a control part 70 for, on the basis of determination by the determination part, controlling at least one of a rotation speed of the rotation motor and rotation speed of the feeding motor.SELECTED DRAWING: Figure 1

FUJIWARA RYOJI
MINEGISHI TAKAO
FURUKAWA TEI
KAWAMATA KUNIO
KONO RYOJI
MORIGUCHI AKIRA
HAMAKAWA TETSUYA

JP2022059620A

October 16, 2023

March 31, 2022

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HITACH PLANT CONSTR LTD

B23D55/08; B23Q17/09; B23Q17/22

Yuichi Murakami
Hiroshi Seki

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