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    • 8. 发明专利
    • CUTTING DEVICE
    • JPH1034434A
    • 1998-02-10
    • JP18965396
    • 1996-07-18
    • AMADA CO LTD
    • TOKIWA TORU
    • B23D53/08B23D55/02B23D55/08
    • PROBLEM TO BE SOLVED: To cut a workpiece easily into small pieces by providing a cutter movably in an X-axis direction or a Y-axis direction, and providing a workpiece placing base, provided with a workpiece rotating device, movably in the Y-axis direction or the X-axis direction. SOLUTION: A turntable 45 is rotated by torque of a turntable driving motor 55 through a speed reducer 57 and stopped by operating a brake of the speed reducer 57 in a position where one blade W of a large screw faces a Y-axis direction. A workpiece placing base 33 is advanced on a placing base guide rail 39 by the actuation of a placing base driving motor 41 and stopped in the advanced position of the tip of the blade W. In this state, a vertical band saw machine 1 advances at low speed on a guide rail 25 and advances while cutting the workpiece with a band saw blade 7 traveling from an upper frame 19 of the vertical band saw machine 1 toward a lower frame 15.
    • 9. 发明专利
    • RADIOACTIVE WASTE CUTTING DEVICE
    • JPH09136217A
    • 1997-05-27
    • JP32130195
    • 1995-11-16
    • NUCLEAR FUEL IND LTD
    • NAKAGAWA TOMOHIRO
    • B23D55/00B23D55/02B23D55/04B23D59/04
    • PROBLEM TO BE SOLVED: To suppress secondary waste produced in a cutting work to the minimum by providing a radioactive material fixing means, a cooling means to inject cooling compressed air onto a saw blade, and a dust collecting means to collect dust produced in cutting. SOLUTION: Radioactive material is put on a table 10 and held fixedly using a pair of fixing members 11 and 12, a band saw blade 21 is rotated, and a dust-proof cover 41 is lowered. At the same time, a compressor 35 is operated so as to inject compressed air for cooling onto the band saw blade 21 and an exhaust system 45 is operated so as to suck dust and dirt. Then the radioactive material is cut off. Because the band saw blade 21 is cooled under cutting without using any cutting oil, any radioactive material which will be generated together with chips is not mixed with the cutting oil, and it is prevented that much secondary waste is produced. In addition, because the generated chips are collected while dust and dirt are being collected, the radioactive material is not dispersed onto the surrounding air and floor, and a work environment can be maintained clean and safely.
    • 10. 发明专利
    • BAND SAW
    • JPH0966417A
    • 1997-03-11
    • JP22081695
    • 1995-08-29
    • AMADA CO LTD
    • TOKIWA TORU
    • B23D55/02
    • PROBLEM TO BE SOLVED: To cut a heavy work easily at an arbitrary place. SOLUTION: A band saw is provided with a cutting part for rotating and moving the edge of a band saw, a moving and positioning part 19 for moving and positioning the cutting part to a cutting position along a work W and a work table 13 for placing the heavy work W. Therefore, it can be cut without moving and positioning the heavy work W. The moving and positioning part 19 is provided with a saw edge housing 107, a main column 39 for supporting the saw edge housing 107 vertically slidably and an auxiliary column for holding the saw edge housing 107 vertically slidably and also for restraining the rotation and is installed integrally by a frame 29 by which the main column 39 and the auxiliary column can straddle the work W. Therefore, as the main column 39 and the auxiliary column are connected rididly through a gate type frame 29, the saw edge housing 107 can be lowered straight without swinging at the cutting time.