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    • 3. 发明专利
    • BENDING DEVICE FOR REINFORCING BAR
    • JPS6352723A
    • 1988-03-05
    • JP19769686
    • 1986-08-22
    • TAKENAKA KOMUTEN COKOBE STEEL LTDTAKIGAWA KOGYO KK
    • SUZUKI AKIOHOSHINO HARUOTSUBOTA AKIRAKONO MASANOBUKISHIMOTO HIROAKIINOUE TOSHIO
    • B21F1/00
    • PURPOSE:To obtain a uniform unit reinforcing bar by disposing a primary bender capable of advancing or retreating at a fixed position in the direction of feeding the reinforcing bar and a secondary bender capable of moving right and left and advancing or retreating to enable controlling the interval between both benders and by controlling an irregularity of bending caused at the time of longitudinal bending by an added holding mechanism. CONSTITUTION:Two pairs of motor-driven benders for the reinforcing bar 10, 10A are disposed to enable controlling the interval between both benders, on an adjacent position of a feeding side of the worked machine of the primary bender 10, the reinforcing bar holding device is arranged. A reinforcing bar holder 48 of the holding device 10 left from a feeding line of the reinforcing bar and the reinforcing bar A is fed and clamped by a clamp 18 of the secondary bender. 10A. After that, the primary bender 10 is driven, the reinforcing bar A is bent by a force point roller 14 and supporting point roller 12. Then, the primary bender 10 is retreated to the refuging position and in the state of advancing the rear end holding device, the secondary bender 10A is driven to bend the middle part of the reinforcing bar A. This bending reaction is received by a dog plate 48' of the holding device to prevent an over movement of the reinforcing bar to control the dimensions of the secondary bending.