Method for molding plastic material by mechanical press
    1.
    发明授权
    Method for molding plastic material by mechanical press 失效
    通过机械压力成型塑料材料的方法

    公开(公告)号:US4489031A

    公开(公告)日:1984-12-18

    申请号:US450557

    申请日:1982-12-16

    申请人: Susumu Ogihara

    发明人: Susumu Ogihara

    摘要: A method for molding plastic materials which release gas during molding by operating a mechanical rotary crank type press having opposed metal die parts respectively carried on a slide driven by a crank mechanism and on a floating plate supported on a die cushion and movable against a bolster on the press. The method involves heating a blank of a plastic material which releases gas during molding to a molding temperature and placing it between the die parts. Then, the crank mechanism of the press is operated to drive the slide in a direction toward a bottom dead center position to a first position which is within a range of positions in the movement of the slide where only the reacting force of the die cushion is received by the blank and holding the slide at this first position for a time up to several seconds for permitting release of the gas from the plastic material of the blank. Then the crank mechanism of the press is further operated to drive the slide to the position thereof corresponding to the bottom dead center position of the crank mechanism for exerting pressure on the blank against the bolster of the press. Finally the slide is driven past the last mentioned position and in the opposite direction to a further position where only the reaction force of the die cushion is received by the blank and holding the blank at this further position for cooling and solidifying the blank.

    摘要翻译: 一种用于模制塑料的方法,其通过操作具有相对的金属模具部件的机械旋转曲柄型压力机在模制中释放气体,所述机械旋转曲柄型压力机分别承载在由曲柄机构驱动的滑块上,以及支撑在模具垫上的浮动板, 新闻。 该方法包括加热塑料材料的坯料,其在模制期间将气体释放到成型温度并将其放置在模具部件之间。 然后,操作压力机的曲柄机构,使滑动件朝向下死点位置的方向驱动到第一位置,该第一位置在滑块的运动位置范围内,只有模座的反作用力为 由坯件接收并将滑块保持在该第一位置几秒钟以允许从坯料的塑料材料释放气体。 然后进一步操作压力机的曲柄机构,以将滑块驱动到与曲柄机构的下止点位置相对应的位置,以将压力施加在冲压机的压板上。 最后,滑块被驱动经过最后提到的位置,并且在相反方向被驱动到另一个位置,在该位置处只有模具衬垫的反作用力被坯件接收并且将坯件保持在该另外的位置以冷却和固化坯件。

    Apparatus for producing fine iron particles
    2.
    发明授权
    Apparatus for producing fine iron particles 失效
    用于生产细铁粒子的设备

    公开(公告)号:US4023738A

    公开(公告)日:1977-05-17

    申请号:US651349

    申请日:1976-01-22

    CPC分类号: B02C1/00 B03C1/18

    摘要: An apparatus for carrying out the process of producing fine iron particles which comprises in combination an endless chain trained about a pair of opposite and spaced drive and driven sprockets and having a plurality of spaced permanent magnets attached to the exposed side of the chain, a non-magnetic chip guide plate positioned above and in parallel to the chain and having a hopper at one end and a chip discharge chute at the other end and a magnetic striking member normally disposed above and spaced from said chip guide plate and connected to a reciprocal impact means to be moved toward and away from said guide plate as the impact means moves reciprocally.

    摘要翻译: 一种用于执行生产细铁粒子的方法的装置,其组合包括围绕一对相对且间隔开的驱动链轮和从动链轮训练的环形链,并且具有附接到链的暴露侧的多个间隔开的永久磁体, 位于链条上方并与其平行的磁芯片引导板,并且在另一端具有料斗和通常设置在所述切屑引导板上方并与所述切屑引导板间隔开并连接到往复冲击的磁性冲击件 当冲击装置相互往复移动时,被移向和远离所述导向板的装置。