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    Foam molding method and mold assembly therefor
    2.
    发明授权
    Foam molding method and mold assembly therefor 失效
    泡沫成型方法和模具组装

    公开(公告)号：US5132064A

    公开(公告)日：1992-07-21

    申请号：US581253

    申请日：1990-09-11

    申请人： Toshio Iwasawa ,  Takeo Yoshida ,  Junji Sakata ,  Kazushige Ebe ,  Itsumi Komada ,  Toshihiro Hamaji ,  Akihito Kimura

    发明人： Toshio Iwasawa ,  Takeo Yoshida ,  Junji Sakata ,  Kazushige Ebe ,  Itsumi Komada ,  Toshihiro Hamaji ,  Akihito Kimura

    IPC分类号： B29C33/26 ,  B29C44/04

    CPC分类号： B29C33/26 ,  B29C44/04 ,  B29L2031/58 ,  B29L2031/751 ,  Y10S425/812

    摘要： A method of molding a foamed product is carried out by using a front and a rear mold for molding a front and a rear portion of the foamed product and a core interposed between the front and rear molds. The method includes steps of pouring or spraying one of foaming stock solutions onto a molding surface of the one mold, arranging the core in the one mold and pouring or spraying the other foaming stock solution onto the core or a molding surface of the other mold. The front and rear molds are closed at a moment when a lapse of time arrives at 30-100% of a rise time of the foaming stock solution later applied. Thereafter the closed molds are maintained in a position where an angle of the closed molds relative to a horizontal plane is within a range between 90.degree. and an angle more than 0.degree.. The front and rear molds are pivotally connected to each other with their one ends by means of a pivot shaft. The core is pivotally supported with its one end by a shaft arranged in parallel to the pivot shaft. The core is formed with a through-hole and said rear mold is provided with a protrusion to be hermetically fitted in the through-hole of the core.

    Method for molding polyurethane seat paddings
    3.
    发明授权
    Method for molding polyurethane seat paddings 失效
    聚氨酯垫片的模塑方法

    公开(公告)号：US5244612A

    公开(公告)日：1993-09-14

    申请号：US623689

    申请日：1990-12-07

    申请人： Toshio Iwasawa ,  Kazushige Ebe ,  Takayoshi Morofuji

    发明人： Toshio Iwasawa ,  Kazushige Ebe ,  Takayoshi Morofuji

    IPC分类号： B29C44/04 ,  B29C44/12

    CPC分类号： B29C44/1271 ,  B29C44/0469

    摘要： A polyurethane seat padding having a center seat portion and a bank portion on either side thereof is molded by using a mold defining a cavity having a center region corresponding to the center seat portion and side regions corresponding to the bank portions, placing collecting vessels of expanded polypropylene or polyethylene in the side regions of the mold cavity, pouring a foaming polyurethane liquid for flexible foam into the cavity between the collecting vessels, pouring a foaming polyurethane liquid for rigid foam into the collecting vessels, and causing the foaming liquids to expand, thereby producing a polyurethane seat padding having the collecting vessels embedded therein.

    Method for producing casting die and die model
    5.
    发明授权
    Method for producing casting die and die model 有权
    铸造模具和模具的生产方法

    公开(公告)号：US08056603B2

    公开(公告)日：2011-11-15

    申请号：US12443892

    申请日：2007-09-19

    申请人： Seiji Omata ,  Toshio Iwasawa

    发明人： Seiji Omata ,  Toshio Iwasawa

    IPC分类号： B22C7/02 ,  B22C9/04 ,  B22D46/00

    CPC分类号： B22D47/02 ,  B22C7/023 ,  B22C9/02 ,  B22C9/046 ,  B25J11/005

    摘要： A method for producing a casting die by simple work without requiring any high work skill in which the working days required for producing the casting die can be shortened greatly. A die model suitably employed in this production method, an NC processing system and a processing robot are also provided. The method for producing the casting die comprises: (1) a die data making step for making die data through designing a requisite die in compliance with a configuration of an article to be produced; (2) an automatic processing preparation step for preparing processing data as to how processing is to be performed by an automatic processing machine on the basis of the die data; (3) a die model cutting step for producing a die model by cutting a die model material with the automatic processing machine; (4) a die mold making step for making a die mold by packing casting sand in a box whose upper side is open, with the die model produced in the die model cutting step being placed at a central part of the box, the casting sand being provided with a gate and solidified with bond to thereby obtain the die mold; (5) a die casting step for casting a die by pouring a molten die material into the die mold made in the die mold making step; and (6) a finishing and assembling step for finishing and assembling the die cast in the die casting step.

    摘要翻译： 一种通过简单的工作生产铸模的方法，而不需要任何高工作技术，其中可以大大缩短生产铸模所需的工作时间。 还提供了适用于该生产方法的模具模型，NC处理系统和加工机器人。 制造铸模的方法包括：（1）模具数据制作步骤，用于通过根据要制造的制品的构造设计必需的模具来制造模具数据; （2）自动处理准备步骤，用于根据模具数据准备关于如何由自动处理机进行处理的处理数据; （3）通过用自动加工机切割模具材料来生产模具模具的模具切割步骤; （4）一种模具制造工序，其通过在上侧开放的箱体中填充铸砂来制造模具，将模具切割工序中制造的模具模型放置在箱体的中心部分，铸造砂 设有浇口并用粘结固化，从而获得模具模具; （5）压铸步骤，通过将熔融模具材料注入模具制作步骤中制成的模具中来铸造模具; 以及（6）在压铸工序中精加工和组装压铸件的精加工和组装步骤。

    Method for molding expanded synthetic resin
    8.
    发明授权
    Method for molding expanded synthetic resin 失效
    膨胀合成树脂成型方法

    公开(公告)号：US5895615A

    公开(公告)日：1999-04-20

    申请号：US925644

    申请日：1997-09-09

    申请人： Yutaka Hirata ,  Teruo Iwai ,  Toshio Iwasawa

    发明人： Yutaka Hirata ,  Teruo Iwai ,  Toshio Iwasawa

    IPC分类号： B29C33/10 ,  B29C33/36 ,  B29C44/34 ,  B29C44/58 ,  B29C44/02

    CPC分类号： B29C44/588 ,  B29C33/10 ,  B29C44/3403 ,  B29C44/582 ,  B29C33/36 ,  Y10S425/812

    摘要： A mold apparatus for producing a synthetic resin foam part has a mold assembly (1) comprising a lower mold (2), an upper mold (3) removably attached to the lower mold to define a closed space, and an insert (4) removably disposed in the closed space. The insert has a partition (6) which is faced to the upper mold through a gap (11). The partition defines a chamber (7) between the insert and the upper mold. The closed space excluding the chamber constitutes a cavity (8) into which a molding compound is introduced. A pressure regulator means (21) is provided for exhausting air from the chamber (7) to keep the chamber in a subatmospheric pressure whereby air in the cavity (8) is also exhausted through the gap. A foam part is produced by feeding a synthetic resin blow molding compound into the cavity (8) under atmospheric pressure, tightly closing the mold assembly, exhausting air from the chamber and from the cavity through the gap to establish a subatmospheric pressure in the cavity, and causing the molding compound to be blow molded.

    摘要翻译： 一种用于制造合成树脂泡沫部件的模具设备具有模具组件（1），其包括下模具（2），可拆卸地附接到下模具以限定封闭空间的上模具（3）和可拆卸地插入件 处于封闭空间。 插入件具有通过间隙（11）面向上模具的隔板（6）。 分隔件限定了插入件和上模具之间的腔室（7）。 除了室之外的封闭空间构成了引入模塑料的空腔（8）。 设置有压力调节装置（21），用于排出来自腔室（7）的空气，以将腔室保持在低于大气压的压力，由此空腔（8）中的空气也通过间隙排出。 通过在大气压力下将合成树脂吹塑化合物进料到空腔（8）中，密封模具组件，从腔室排出空气并通过间隙从空腔排出空气，产生泡沫部分，以在空腔中形成低于大气压的压力， 并使成型化合物进行吹塑。

    Method for molding polyurethane seat pads
    9.
    发明授权
    Method for molding polyurethane seat pads 失效
    聚氨酯座垫成型方法

    公开(公告)号：US5603874A

    公开(公告)日：1997-02-18

    申请号：US517662

    申请日：1995-08-22

    申请人： Seiji Ishii ,  Toshio Iwasawa

    发明人： Seiji Ishii ,  Toshio Iwasawa

    IPC分类号： B29C33/38 ,  B29C39/10 ,  B29C39/12 ,  B29C44/04 ,  B29K23/00 ,  B29K75/00 ,  B29K105/04 ,  B29L31/58 ,  C08L75/00 ,  C08L75/04 ,  B29C44/06 ,  B29C44/12

    CPC分类号： B60N2/7017 ,  B29C44/0469

    摘要： A polyurethane seat pad having a center seat portion and bank portions therearound is molded by using a mold defining a cavity having a center region corresponding to the center seat portion and side regions corresponding to the bank portions, placing collecting vessels of expanded polyolefin in the side regions of the mold cavity, pouring a foamable polyurethane liquid for low hardness foam into the cavity between said collecting vessels, pouring a foamable polyurethane liquid for high hardness foam into said collecting vessels, and causing the foamable liquids to expand, thereby producing a polyurethane seat pad having the collecting vessels embedded therein. The expanded polyolefin is a crosslinked polyolefin foam having an index of surface wetting of at least 36 dyne/cm. The seat pad in which the bank portions have higher hardness than the seating portion and which is fully durable against repetitive loading can be produced to the desired configuration in a stable manner.

    摘要翻译： 通过使用限定具有对应于中心座部分的中心区域和与堤岸部分对应的侧部区域的空腔的模具来模制具有中心座部分和其周围的堤岸部分的聚氨酯座垫，将聚烯烃的收集容器放置在侧面 模具腔的区域，将用于低硬度泡沫的可发泡聚氨酯液体倒入所述收集容器之间的空腔中，将用于高硬度泡沫的可发泡聚氨酯液体倒入所述收集容器中，并使可发泡液体膨胀，由此生产聚氨酯座 衬垫具有嵌入其中的收集容器。 发泡聚烯烃是表面润湿指数至少为36达因/厘米的交联聚烯烃泡沫。 可以以稳定的方式产生其中堤部具有比座部更高的硬度并且完全耐受重复加载的座垫。

    METHOD FOR PRODUCING CASTING DIE AND DIE MODEL
    10.
    发明申请
    METHOD FOR PRODUCING CASTING DIE AND DIE MODEL 有权
    生产铸件和模具的方法

    公开(公告)号：US20100025002A1

    公开(公告)日：2010-02-04

    申请号：US12443892

    申请日：2007-09-19

    申请人： Seiji Omata ,  Toshio Iwasawa

    发明人： Seiji Omata ,  Toshio Iwasawa

    IPC分类号： B22C9/02 ,  B22C7/00 ,  B22C19/04 ,  B25J9/00 ,  B25J13/00

    CPC分类号： B22D47/02 ,  B22C7/023 ,  B22C9/02 ,  B22C9/046 ,  B25J11/005

    摘要： A method for producing a casting die by simple work without requiring any high work skill in which the working days required for producing the casting die can be shortened greatly. A die model suitably employed in this production method, an NC processing system and a processing robot are also provided. The method for producing the casting die comprises: (1) a die data making step for making die data through designing a requisite die in compliance with a configuration of an article to be produced; (2) an automatic processing preparation step for preparing processing data as to how processing is to be performed by an automatic processing machine on the basis of the die data;(3) a die model cutting step for producing a die model by cutting a die model material with the automatic processing machine; (4) a die mold making step for making a die mold by packing casting sand in a box whose upper side is open, with the die model produced in the die model cutting step being placed at a central part of the box, the casting sand being provided with a gate and solidified with bond to thereby obtain the die mold; (5) a die casting step for casting a die by pouring a molten die material into the die mold made in the die mold making step; and (6) a finishing and assembling step for finishing and assembling the die cast in the die casting step.

    摘要翻译： 一种通过简单的工作生产铸模的方法，而不需要任何高工作技术，其中可以大大缩短生产铸模所需的工作时间。 还提供了适用于该生产方法的模具模型，NC处理系统和加工机器人。 制造铸模的方法包括：（1）模具数据制作步骤，用于通过根据要制造的制品的构造设计必需的模具来制造模具数据; （2）自动处理准备步骤，用于根据模具数据准备关于如何由自动处理机进行处理的处理数据;（3）模具模型切割步骤，用于通过切割模具来生产模具模型 型号材料与自动加工机; （4）一种模具制造工序，其通过在上侧开放的箱体中填充铸砂来制造模具，将模具切割工序中制造的模具模型放置在箱体的中心部分，铸造砂 设有浇口并用粘结固化，从而获得模具模具; （5）压铸步骤，通过将熔融模具材料注入模具制作步骤中制成的模具中来铸造模具; 以及（6）在压铸工序中精加工和组装压铸件的精加工和组装步骤。