IMPROVED COMBINATION CONTROL FOR INJECTION MOLDING
    1.
    发明申请
    IMPROVED COMBINATION CONTROL FOR INJECTION MOLDING 审中-公开
    改进注射成型的组合控制

    公开(公告)号:WO1997013212A1

    公开(公告)日:1997-04-10

    申请号:PCT/US1996015731

    申请日:1996-10-01

    Abstract: An adaptive controller (42) is provided for controlling the velocity of a ram (32) in an injection molding apparatus (14) during the injection stage of the molding cycle. The controller (42) includes two sets of parameters. The first set of parameters defines an open-loop control equation and the second set of parameters defines a closed-loop control equation for controlling the ram (32) velocity. The first and second set of parameters are modified to improve the ram (32) performance and efficiency on the subsequent injection cycle.

    Abstract translation: 提供了一种自适应控制器(42),用于在注射成型周期的注射阶段期间控制注射成型设备(14)中的冲头(32)的速度。 控制器(42)包括两组参数。 第一组参数定义了开环控制方程,第二组参数定义了一个用于控制冲程(32)速度的闭环控制方程。 修改了第一组参数和第二组参数,以提高后续注射周期的ram(32)性能和效率。

    ADAPTIVE CONTROLLER FOR INJECTION MOLDING
    2.
    发明申请
    ADAPTIVE CONTROLLER FOR INJECTION MOLDING 审中-公开
    自适应控制器注射成型

    公开(公告)号:WO1997012744A1

    公开(公告)日:1997-04-10

    申请号:PCT/US1996015771

    申请日:1996-10-01

    Abstract: An adaptive controller (42) is provided for controlling the transition, in an injection molding apparatus (10), from the injection stage to the packing stage. The controller operates by controlling the velocity of the ram (32) during the injection stage, and controlling the ram pressure during the packing stage. The controller (42) anticipates the transition from the injection stage to the packing stage by monitoring the ratio of pressure to velocity. The divergence of this ratio forecasts the onset of the packing stage. At this time, a pressure relief valve (46) is preset in anticipation of the packing stage, to prevent a pressure spike during the transition period. The flow control valve (40) is held constant during the transition.

    Abstract translation: 提供了一种自适应控制器(42),用于控制在注射成型设备(10)中从注射阶段到包装阶段的过渡。 控制器通过在喷射阶段控制压头(32)的速度并在包装阶段控制压头压力来操作。 控制器(42)通过监测压力与速度的比率来预期从注射阶段到包装阶段的过渡。 这个比例的差异预示着包装阶段的开始。 此时,为了防止在过渡期间的压力尖峰,预先设置压力释放阀(46),以预期包装阶段。 流量控制阀(40)在过渡期间保持恒定。

    STEM SEALING SYSTEM FOR BROAD TEMPERATURE RANGES
    3.
    发明申请
    STEM SEALING SYSTEM FOR BROAD TEMPERATURE RANGES 审中-公开
    用于广泛温度范围的STEM密封系统

    公开(公告)号:WO1997030303A1

    公开(公告)日:1997-08-21

    申请号:PCT/US1997002249

    申请日:1997-02-14

    CPC classification number: F16J15/186 F01L3/08 F16K41/02

    Abstract: A stem seal having first and second wiping members (30, 32) circumjacent a stem is disposed within a bore. A lubricant-bearing ring (40) is disposed about the stem within the bore between the wiping members, under compression therefrom. Projections from the wiping members intrude into the lubrication ring so as to depress the central surface areas thereof. Similar projections are used to center a coil spring (28) against one of these seal members and against an additional seal member (26). By forming the lubricant ring of open-cell foam or mesh construction, superior lubricant bearing capacities may be achieved.

    Abstract translation: 具有围绕杆的第一和第二擦拭构件(30,32)的杆密封件设置在孔内。 润滑剂轴承环(40)围绕阀杆在擦拭构件之间的孔内布置在压缩构件之间。 来自擦拭构件的突出部侵入到润滑环中以使其中心的表面区域被压下。 类似的突起用于使螺旋弹簧(28)对准这些密封构件中的一个并抵靠另外的密封构件(26)。 通过形成开孔泡沫或网状结构的润滑剂环,可以实现优异的润滑剂承载能力。

    GEAR SHAPING MACHINE
    4.
    发明申请
    GEAR SHAPING MACHINE 审中-公开
    齿轮成型机

    公开(公告)号:WO1984003464A1

    公开(公告)日:1984-09-13

    申请号:PCT/US1984000377

    申请日:1984-03-09

    CPC classification number: B23F5/16 Y10T409/109063 Y10T409/109381

    Abstract: The gear shaping machine is of simplified construction and is dedicated essentially to forming only a single type of gear or a narrow range of gears. To enable the machine to be of simplified construction, the drive train between the cutter and work spindles (13, 16) consists of only four gears in a machine for cutting internal gears and consists of only four gears (65, 67, 80, 84) and a direction-changing idler (81, 82) in a machine for cutting external gears. Relative infeeding of the cutter (12) and the work blank (11) is effected by pivoting one of the spindles relative to the other spindle with one of the drive gears walking around another one of the drive gears during such pivoting. The differential rotation of the spindles produced by the pivoting action is negated in order to keep the spindles in proper rotational relationship.

    HOBBING MACHINE
    5.
    发明申请
    HOBBING MACHINE 审中-公开
    休闲机

    公开(公告)号:WO1983003989A1

    公开(公告)日:1983-11-24

    申请号:PCT/US1983000575

    申请日:1983-04-18

    Abstract: The hobbing machine (20) is of simplified construction and is dedicated essentially to forming only a single type of gear or a narrow range of gears. To enable the machine to be of simplified construction, its drive train consists of only four gears (66, 67, 70, 71) and its hob head (50) is mounted to pivot around the axis (65) of the drive shaft (63) for the work spindle (24). The arrangement of the four gears (66, 67, 70, 71) together with the pivotal mounting of the hob head (50) enables the hob spindle (23) to be inclined at a predetermined setting angle relative to the work spindle (24) and enables the center distance between the spindles to be selectively changed.

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