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    Hydraulic drive system of an injection molding machine
    1.
    发明授权
    Hydraulic drive system of an injection molding machine 有权
    注塑机的液压驱动系统

    公开(公告)号：US06341953B1

    公开(公告)日：2002-01-29

    申请号：US09667852

    申请日：2000-09-22

    Applicant: Kazuyuki Okubo ,  Daiki Tanemura

    Inventor： Kazuyuki Okubo ,  Daiki Tanemura

    IPC: B29C4577

    CPC classification number: B29C45/82 ,  B29C45/5008 ,  B29C45/67 ,  B29C2945/76498 ,  B29C2945/76605 ,  B29C2945/76678 ,  B29C2945/76709 ,  B29C2945/76785

    Abstract: Disclosed is a hydraulic drive system of an injection molding machine which has a hydraulic power source equipped with a fixed-displacement hydraulic pump and a servomotor for driving the hydraulic pump and functioning to control discharge rate and discharge pressure of the hydraulic pump through control of the rotational speed of the servomotor. In the hydraulic drive system, a pilot port of a control valve connected to a hydraulic actuator of the injection molding machine is connected to a supply line of working fluid discharged from the hydraulic power source, via a series circuit including a check valve for preventing backflow from the pilot port and a changeover valve.

    Abstract translation: 公开了一种注射成型机的液压驱动系统，该液压驱动系统具有液压动力源，该液压动力源装备有固定位移液压泵和用于驱动液压泵的伺服电动机，其功能是通过控制液压泵的控制来控制液压泵的排出压力和排出压力 伺服电机的转速。 在液压驱动系统中，连接到注射成型机的液压致动器的控制阀的先导端口通过包括用于防止回流的止回阀的串联回路连接到从液压动力源排出的工作流体的供给管线 从先导端口和切换阀。

    Process of producing polyesters
    2.
    发明申请
    Process of producing polyesters 有权
    生产聚酯的工艺

    公开(公告)号：US20050239999A1

    公开(公告)日：2005-10-27

    申请号：US11084112

    申请日：2005-03-21

    Applicant: Kazuyuki Okubo ,  Masanori Yamamoto ,  Yoshio Akahane ,  Toshiyuki Hamano

    Inventor： Kazuyuki Okubo ,  Masanori Yamamoto ,  Yoshio Akahane ,  Toshiyuki Hamano

    IPC: C08G63/78 ,  F25B1/00 ,  C08G63/02

    CPC classification number: C08G63/785 ,  Y02P20/582

    Abstract: A problem of the invention is to provide a process of producing polyesters having a stable quality and a process of producing polyesters with a greatly reduced load against the environment. The invention relates to a process of producing polyesters by using a polycondensation reaction apparatus provided with one or more sets of an ejector, a condenser placed in the downstream portion of the ejector and a hot well tank connected to the condenser via a barometric leg and including a step of driving the ejector by a vapor composed mainly of 1,4-butanediol, condensing the vapor composed mainly of 1,4-butanediol as discharged from the ejector in the condenser placed in the downstream portion of the ejector, and making the reactor in a reduced pressure state to undergo polycondensation reaction, characterized in that the concentration of tetrahydrofuran contained in a sealing liquid in at least one hot well tank is not more than 4% by weight.

    Abstract translation: 本发明的一个问题是提供一种具有稳定质量的聚酯的生产方法和一种生产聚酯的方法，该聚酯具有大大降低的环境负荷。 本发明涉及一种通过使用缩聚反应装置制造聚酯的方法，所述缩聚反应装置设置有一组或多组喷射器，放置在喷射器下游部分的冷凝器和通过气压连接到冷凝器的热井箱， 通过主要由1,4-丁二醇构成的蒸汽驱动喷射器的步骤，将放置在喷射器的下游部分的冷凝器中的从喷射器排出的主要由1,4-丁二醇组成的蒸气冷凝，并使反应器 在减压状态下进行缩聚反应，其特征在于，至少一个热水槽中的密封液中所含的四氢呋喃的浓度不超过4重量％。

    Clamping apparatus for molding machine
    3.
    发明授权
    Clamping apparatus for molding machine 失效
    成型机夹紧装置

    公开(公告)号：US5188850A

    公开(公告)日：1993-02-23

    申请号：US814178

    申请日：1991-12-30

    Applicant: Hisakazu Hirata ,  Kazuyuki Okubo ,  Motomi Kitamura

    Inventor： Hisakazu Hirata ,  Kazuyuki Okubo ,  Motomi Kitamura

    IPC: B29C45/17 ,  B29C45/67 ,  B29C45/84

    CPC classification number: B29C45/1761 ,  B29C45/1748 ,  B29C45/6728 ,  B29C45/84

    Abstract: A clamping apparatus of molding machine including a base; a fixed board disposed on the base; a movable board movable relative to the fixed board; a plurality of mold clamping cylinders disposed in predetermined positions of the fixed board, the mold clamping cylinders each having a mold clamping piston with a tie bar reception hole and a tie bar connection device disposed on the mold clamping piston; a plurality of tie bars with a thread at their one end, the tie bars being disposed in correspondence with the mold clamping cylinders on the movable board; a plurality of mold opening/closing cylinders for moving the movable board; and a differential circuit connected between a front oil chamber and a rear oil chamber of each of the plurality of mold clamping cylinder.

    Abstract translation: 一种包括基座的成型机的夹紧装置， 设置在基座上的固定板; 相对于固定板可移动的活动板; 设置在固定板的预定位置的多个模具夹紧缸，每个模具夹紧缸具有一个具有拉杆接收孔的模具夹紧活塞和一个设置在模具夹紧活塞上的连接杆连接装置; 在其一端具有螺纹的多个连杆，所述连杆与所述可移动板上的所述合模缸对应地设置; 多个用于移动可动板的模具打开/关闭气缸; 以及连接在多个模具夹紧缸中的每个的前油室和后油室之间的差动回路。

    Clamping apparatus for molding machine
    4.
    发明授权
    Clamping apparatus for molding machine 失效
    成型机夹紧装置

    公开(公告)号：US5320517A

    公开(公告)日：1994-06-14

    申请号：US989535

    申请日：1992-12-11

    Applicant: Hisakazu Hirata ,  Kazuyuki Okubo ,  Motomi Kitamura

    Inventor： Hisakazu Hirata ,  Kazuyuki Okubo ,  Motomi Kitamura

    IPC: B29C45/17 ,  B29C45/67 ,  B29C45/84 ,  B29C45/64

    CPC classification number: B29C45/1761 ,  B29C45/6728 ,  B29C45/84 ,  Y10S425/045

    Abstract: A clamping apparatus of molding machine including a base; a fixed board disposed on the base; a movable board movable relative to the fixed board; a plurality of mold clamping cylinders disposed in predetermined positions of the fixed board, the mold clamping cylinders each having a mold clamping piston with a tie bar reception hole and a tie bar connection device disposed on the mold clamping piston; a plurality of tie bars with a thread at their one end, the tie bars being disposed in correspondence with the mold clamping cylinders on the movable board; a plurality of mold opening/closing cylinders for moving the movable board; and an axially movable sleeve associated with each clamping cylinder for adjusting an axial position of an associated piston to adjust an engagement position of the tie bar connection device, the sleeve being disposed in an opening in the fixed board and forming an extension of the tie bar reception hole, with one end of the sleeve abutting against a reception wall provided in each piston surrounding the tie bar reception hole and the other end of the sleeve threadedly cooperating with an engagement adjustment screw ring secured to the fixed board.

    Abstract translation: 一种包括基座的成型机的夹紧装置， 设置在基座上的固定板; 相对于固定板可移动的活动板; 设置在固定板的预定位置的多个模具夹紧缸，每个模具夹紧缸具有一个具有拉杆接收孔的模具夹紧活塞和一个设置在模具夹紧活塞上的连接杆连接装置; 在其一端具有螺纹的多个连杆，所述连杆与所述可移动板上的所述合模缸对应地设置; 多个用于移动可动板的模具打开/关闭气缸; 以及与每个夹紧缸相关联的可轴向移动的套筒，用于调节相关联的活塞的轴向位置，以调节连接杆连接装置的接合位置，套筒设置在固定板的开口中并形成连杆的延伸部 接收孔，套筒的一端抵靠设置在围绕连杆接收孔的每个活塞中的接收壁，并且套筒的另一端与固定到固定板的接合调节螺纹螺纹配合。

    Process of producing polyesters
    5.
    发明授权
    Process of producing polyesters 有权
    生产聚酯的工艺

    公开(公告)号：US07732556B2

    公开(公告)日：2010-06-08

    申请号：US11084112

    申请日：2005-03-21

    Applicant: Kazuyuki Okubo ,  Masanori Yamamoto ,  Yoshio Akahane ,  Toshiyuki Hamano

    Inventor： Kazuyuki Okubo ,  Masanori Yamamoto ,  Yoshio Akahane ,  Toshiyuki Hamano

    IPC: C08G63/02

    CPC classification number: C08G63/785 ,  Y02P20/582

    Abstract: A problem of the invention is to provide a process of producing polyesters having a stable quality and a process of producing polyesters with a greatly reduced load against the environment.The invention relates to a process of producing polyesters by using a polycondensation reaction apparatus provided with one or more sets of an ejector, a condenser placed in the downstream portion of the ejector and a hot well tank connected to the condenser via a barometric leg and including a step of driving the ejector by a vapor composed mainly of 1,4-butanediol, condensing the vapor composed mainly of 1,4-butanediol as discharged from the ejector in the condenser placed in the downstream portion of the ejector, and making the reactor in a reduced pressure state to undergo polycondensation reaction, characterized in that the concentration of tetrahydrofuran contained in a sealing liquid in at least one hot well tank is not more than 4% by weight.

    Abstract translation: 本发明的一个问题是提供一种具有稳定质量的聚酯的生产方法和一种生产聚酯的方法，该聚酯具有大大降低的环境负荷。 本发明涉及一种通过使用缩聚反应装置制造聚酯的方法，所述缩聚反应装置设置有一组或多组喷射器，放置在喷射器下游部分的冷凝器和通过气压连接到冷凝器的热井箱， 通过主要由1,4-丁二醇构成的蒸汽驱动喷射器的步骤，将放置在喷射器的下游部分的冷凝器中的从喷射器排出的主要由1,4-丁二醇组成的蒸气冷凝，并使反应器 在减压状态下进行缩聚反应，其特征在于，至少一个热水槽中的密封液中所含的四氢呋喃的浓度不超过4重量％。

    Hopper convertible material container
    6.
    再颁专利
    Hopper convertible material container 失效
    料斗可转换材料容器

    公开(公告)号：USRE36324E

    公开(公告)日：1999-10-05

    申请号：US768425

    申请日：1996-12-18

    Applicant: Tsukasa Yoda ,  Kazuyuki Okubo ,  Kenji Urasawa

    Inventor： Tsukasa Yoda ,  Kazuyuki Okubo ,  Kenji Urasawa

    IPC: B29C31/02 ,  B29C31/04 ,  B29C45/18 ,  B29C47/10 ,  B65D88/26 ,  B65G65/40 ,  B65D88/54

    CPC classification number: B29C45/18 ,  B29C47/0009 ,  B29C47/1009

    Abstract: A material feeding apparatus including a material container as a hopper serves to feed a molding material sealably received in the material container to a molding machine via a heating sleeve. The material feeding apparatus includes as essential components a material container molded of a transparent synthetic resin or a translucent synthetic resin so as to enable a quantity of molding material remaining in the material container to be visually confirmed from the outside, and an adapter of which one end is formed in the shape of an open end part to be threadably fitted into an opening portion .Iadd.of the outer wall .Iaddend.of the material container and of which the other end is formed in the shape of an open end part to be fitted onto a receiving member of the molding machine. To openably shut the interior of the material container, a shutter is slidably displaceably arranged in the adapter. In practical use, the material container is fitted onto the receiving member via the adapter while assuming an inverted attitude in order to serve also as a hopper. Since the small-sized material container having the molding material sealably received therein can be used as a hopper, a material controlling operation and a material exchanging operation can be achieved at a high speed without any necessity for drying the molding material prior to each molding operation.

    Abstract translation: 包括作为料斗的材料容器的材料供给装置用于将可密封地容纳在材料容器中的成型材料经由加热套筒供给到成型机。 材料供给装置包括作为必要部件的由透明合成树脂或半透明合成树脂模制的材料容器，以便能够从外部目视确认材料容器中剩余的成型材料的数量，以及适配器 端部形成为开口端部的形状，以可螺纹地装配到材料容器的外壁的开口部分中，并且其另一端形成为开口端部的形状以装配到容纳构件上 的成型机。 为了可打开地关闭材料容器的内部，快门可滑动地位移地布置在适配器中。 在实际应用中，材料容器通过适配器而被装配到接收构件上，同时假定倒置姿态以便也用作料斗。 由于具有可密封地容纳在其中的成型材料的小型材料容器可以用作料斗，所以可以高速实现材料控制操作和材料交换操作，而不需要在每次成型操作之前干燥成型材料 。

    Vibration applying apparatus for an injection molding machine
    10.
    发明授权
    Vibration applying apparatus for an injection molding machine 失效
    注塑机用振动施加装置

    公开(公告)号：US06325612B1

    公开(公告)日：2001-12-04

    申请号：US09579935

    申请日：2000-05-26

    Applicant: Nobuyuki Nakamura ,  Koichi Matsubayashi ,  Kazuyuki Okubo

    Inventor： Nobuyuki Nakamura ,  Koichi Matsubayashi ,  Kazuyuki Okubo

    IPC: B29C4523

    CPC classification number: B29C45/585 ,  B29C45/231 ,  B29C2045/2831

    Abstract: A vibration applying apparatus associated with an injection molding machine for applying vibrational repetitive movements to a melt of molding materials includes a rod having a tip end received inside a heating cylinder and disposed in the proximity of a nozzle of the heating cylinder, a stationary guide supporting the rod such that the rod is movable back and forth, a rotating shaft being orthogonal to the rod, a drive motor for rotating the rotating shaft, and a cam mechanism acting between the rotating shaft and the rod so as to convert rotary motion of the rotating shaft into linear reciprocal motion of the rod. With the apparatus thus arranged, the tip end of the reciprocating rod applies vibrational repetitive movements to the melt of molding material, thereby lower the viscosity of melt. The frequency of vibrational repetitive movements can be varied by changing the rotational speed of the drive motor.

    Abstract translation: 与注射成型机相关联的振动施加装置，其用于向模制材料的熔体施加振动重复运动，包括：杆，其顶端容纳在加热缸内并设置在加热缸的喷嘴附近;固定导轨支撑 所述杆使得所述杆可前后移动，与所述杆正交的旋转轴，用于旋转所述转轴的驱动马达和作用在所述旋转轴和所述杆之间的凸轮机构，以便转换所述旋转轴的旋转运动 旋转轴成为杆的线性往复运动。 通过这样布置的装置，往复杆的顶端对成型材料的熔体施加振动重复运动，从而降低熔体的粘度。 可以通过改变驱动马达的转速来改变振动重复运动的频率。

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