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    • 1. 发明专利
    • ELECTRIC UPSETTER
    • JPS5617143A
    • 1981-02-18
    • JP9091079
    • 1979-07-19
    • MITSUBISHI HEAVY IND LTD
    • KUSHIBE YUUKISAKANO JIYOUICHIINAMURA JIYUNJIHACHIMAN SHIYOUJI
    • B21J9/08B21J9/06
    • PURPOSE:To prevent the buckling to be caused by working, in working of blank materials with an electric upsetter, by providing a work guide which encircles the blank material and is movable along the blank material. CONSTITUTION:For example, with a vertical type twin-shaft type upsetter, a blank material 5a is slidably sandwiched between clamping electrodes 1, 3 by a clamping cylinder 2. Thus sandwiched blank material 5a is moved upward by an upsetting cylinder 6a and an upsetter supporting port 7a. A series of devices including a work guide 16a and others for preventing the buckling of the blank material 5a are provided to the supporting part 7a. When the top end of the blank material 5a abuts on an anvil electrode 9a, a pressure switch actuates. Then the switch of a transformer 10a goes on automatically to supply electric current to the transformer 10a, flexible conductor 11a, anvil electrode 9a, blank 5a, clamping electrode 1, flexible conductor 12b and transformer 10a, thereby working the blank material 5a to a desired shape. The same holds true of other blank material 5b.
    • 2. 发明专利
    • Die device
    • DIE设备
    • JPS57124530A
    • 1982-08-03
    • JP897581
    • 1981-01-26
    • Mitsubishi Heavy Ind Ltd
    • HACHIMAN SHIYOUJIFUKUDEN SHIYOUICHI
    • B29C33/00B21D37/00B21D37/14B29B13/00B29C33/20B29C33/22B29C45/26B29C45/64B30B15/28
    • B30B15/28
    • PURPOSE:To prevent dice from breaking down owing to looseness in die fixation by providing an opening, which communicates with a compressed air souce through a pressure detector, in an interface between either of upper and lower dice and a moving or fixed plate to which it is fitted in a die device. CONSTITUTION:To a frame 1, a ram 3 which moves up and down through a driver 2 is fitted, and a sliding member 5 at the top of it is provided with a moving plate 6 where an upper die 7 is fixed with a bolt 9. A lower die 7a is fixed on a fixed plate 10 installed on a frame head surface 1a with a clamping bolt 9a. The moving plate 6 and fixed plate 10 have small-sized holes 11 and 12, whose tips are connected to pipes 13 and 13a which communicate with a compressor 17. During operation, if the fitting of the upper die 7 or lower die 7a is loosened a gap is formed between it and the moving plate 6 or fixed plate 10 and compressed air is blown from the small-sized hole 11 or 12, so that air compression in the pipe 13 or 13a falls. Consequently, a pressure switch 14 operates to stop the operation of a press machine automatically, thus preventing the dice from breaking down.
    • 目的:为了防止骰子由于模具固定松动,通过提供一个通过压力检测器与压缩空气流连通的开口,在上骰子和下骰子之间的界面和移动或固定板 安装在模具中。 构成:在框架1上安装有通过驱动器2上下移动的冲头3,并且其顶部的滑动部件5设置有移动板6,上模7用螺栓9固定 下模7a固定在安装在具有夹紧螺栓9a的框架头表面1a上的固定板10上。 移动板6和固定板10具有小尺寸的孔11和12,其尖端连接到与压缩机17连通的管13和13a。在操作期间,如果上模7或下模7a的装配松动 在其与移动板6或固定板10之间形成间隙,并且从小型孔11或12吹送压缩空气,使得管13或13a中的空气压缩下降。 因此,压力开关14操作以自动停止冲压机的操作,从而防止骰子破裂。