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    • 3. 发明专利
    • Method of molding resin molded article
    • 模制树脂模制品的方法
    • JP2012086513A
    • 2012-05-10
    • JP2010237179
    • 2010-10-22
    • Mazda Motor Corpマツダ株式会社
    • MATSUDA SUKEYUKIOGAWA JUNICHIKANEKO MITSUHARUNAKAJIMA YUKINORIICHIHARA YOHEIMIYAMOTO TSUGUHISAMORIWAKI KENJIASANO CHIAKIHARA MASAOONISHI MASAAKI
    • B29C45/16B29C45/26B29K23/00
    • PROBLEM TO BE SOLVED: To provide a method of molding a resin molded article by which the molded article required to have high mechanical strength and dimensional accuracy for each portion can be manufactured with high flexibility of the shape through a relatively simple process, using a crystalline polymer resin.SOLUTION: The method of molding the resin molded article comprises: a first injection step of injecting the molten liquid of the crystalline polymer resin in a short shot state into a molding die set to a state in which a movable die is separated from a fixed die from a clamping position; a crystallization step of clamping the movable mold at high speed so that the molten liquid stretches at a rate of strain which is equal to or above critical stretching strain rate while the temperature of the molten liquid is equal to or below the melting point and equal to or above the crystallization temperature thereby obtaining the molten liquid in an oriented state and crystallizing the molten liquid while keeping the oriented state; and a second injection step of injecting the molten liquid of additional resin around an intermediate molded article molded in the crystallization step, in the above molding die or another molding die in order to mold the peripheral part of the intermediate molding to a final shape.
    • 要解决的问题:为了提供一种模制树脂模塑制品的方法,通过该方法可以通过相对简单的工艺以高柔性的形状制造每个部分具有高机械强度和尺寸精度所需的模塑制品, 使用结晶聚合物树脂。 解决方案:模制树脂模塑制品的方法包括:第一注射步骤,将短晶状态的结晶聚合物树脂的熔融液体注入设置成可动模具分离的状态的成型模具中 固定模具从夹紧位置; 结晶步骤,高速夹紧可动模具,使得熔融液体以等于或高于临界拉伸应变速率的应变速率拉伸,同时熔融液体的温度等于或低于熔点,等于 或高于结晶温度,从而获得取向状态的熔融液体并使熔融液体保持定向状态; 以及第二注射步骤,在上述成型模具或其它成型模具中将附加树脂的熔融液体注入到在结晶步骤中成型的中间模塑制品上,以便将中间模塑件的周边部分模制成最终形状。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • Taking-out method of injection-molded product, and apparatus for the same
    • 注射成型产品的采用方法及其设备
    • JP2009226828A
    • 2009-10-08
    • JP2008077234
    • 2008-03-25
    • Mazda Motor Corpマツダ株式会社
    • YAMAMOTO KYOZOASANO CHIAKIYAMAKAWA MASAHIROWATANABE TEPPEIFURUTA KAZUHIRO
    • B29C45/44B29C33/44B29C45/43
    • PROBLEM TO BE SOLVED: To suppress defects of lowering in rigidity of a mold or production of burrs by avoiding formation of a relatively large space inside a core mold, when injection-molding a molded product having a curved body protruding toward the front surface side and an undercut part bent toward the rear face side of the body at the edge part of the body and taking it out from the mold.
      SOLUTION: In a taking-out method, a first mold molding the surface of the molded product body, a second mold molding the rear face of the molded product body and the inner face of the undercut part continued to the rear face, and a third mold molding the outer face and the end face of the undercut part continued to the surface of the molded product body, are used to inject resin into a cavity formed by these molds, and then the first mold is separated from the second and third molds and opened, the third mold is moved to the outside of the second mold and the undercut part of the molded product is displaced to the outside of the second mold via the end face, and gas is supplied to a gas passage passing through the inside of the second mold and leading to the cavity forming face of the second mold to release the molded product from the second and third molds.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了通过避免在芯模内形成较大的空间来抑制模具刚度降低的缺陷或产生毛刺的现象,当将具有向前方突出的弯曲体的模制品注塑成型时 表面侧和在身体的边缘部分处朝向身体的后表面侧弯曲的底切部分,并从模具中取出。 解决方案:在取出方法中,模制成型体的表面的第一模具,模制产品主体的后表面的第二模具和底切部分的内表面延伸到后表面, 并且将用于将模制产品主体的表面延续的底切部分的外表面和端面的第三模具用于将树脂注入由这些模具形成的空腔中,然后将第一模具与第二模具分离, 第三模具打开,第三模具移动到第二模具的外部,并且模制产品的底切部分经由端面移动到第二模具的外部,并且气体被供应到通过 在第二模具的内部并且通向第二模具的型腔形成面以从第二和第三模具释放模制产品。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Method and device for cutting workpiece
    • 切割工件的方法和装置
    • JP2008068272A
    • 2008-03-27
    • JP2006247233
    • 2006-09-12
    • Mazda Motor Corpマツダ株式会社
    • ASANO CHIAKI
    • B23K26/38B23K26/00B23K26/02B23K26/08B23K26/40B23K26/42B62D65/16
    • PROBLEM TO BE SOLVED: To allow even a retired workpiece to exactly drilled or cut while preventing the unexpected damage of the workpiece by preventing the contact between a machining head and a vehicle bumper with a simple configuration. SOLUTION: A holding device 3 has: a holding mechanism 5 for holding a vehicle bumper 4; a machining posture changing mechanism 10 for holding a machined portion 12 of the vehicle bumper 4 at the first posture position and the second posture position B elastically deformed from the first posture position; and an operating member 19 for operating the machining posture changing mechanism 10. The vehicle bumper 4 is held by the holding device 3 at the first posture position. Thereafter, the operating member 19 is operated by a robot to operate the machining posture changing mechanism 10, and the machined portion 12 is held at the second posture position B. The machined portion 12 is cut by applying high-density energy beams from a machining head 22. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过以简单的结构防止加工头和车辆保险杠之间的接触,即使退出的工件能够精确地钻削或切割,同时防止工件的意外损坏。 解决方案:保持装置3具有:保持车辆保险杠4的保持机构5; 用于将车辆保险杠4的加工部12保持在从第一姿势位置弹性变形的第一姿势位置和第二姿势位置B的加工姿势变更机构10; 以及用于操作加工姿势改变机构10的操作构件19.车辆保险杠4由保持装置3保持在第一姿势位置。 此后,操作构件19由机器人操作以操作加工姿势改变机构10,并且加工部分12保持在第二姿势位置B.通过施加来自加工的高密度能量束切割加工部分12 (C)2008,JPO&INPIT
    • 10. 发明专利
    • Method for molding resin molding
    • 模制树脂模塑的方法
    • JP2012101507A
    • 2012-05-31
    • JP2010253668
    • 2010-11-12
    • Mazda Motor Corpマツダ株式会社
    • MATSUDA SUKEYUKIOGAWA JUNICHIKANEKO MITSUHARUNAKAJIMA YUKINORIICHIHARA YOHEIMIYAMOTO TSUGUHISAMORIWAKI KENJIASANO CHIAKIHARA MASAO
    • B29C45/00B29C45/26B29C45/56B29K105/04
    • PROBLEM TO BE SOLVED: To provide a molding method which can produce a polymer resin molding having high crystallinity through a relatively simple process high in the degree of freedom of a shape.SOLUTION: A molten crystalline polymer resin A' is packed in a cavity 15' surrounded by a fixed mold 12 and a movable mold 13 which constitute a mold. A physical blowing agent and a second blowing agent with the integrated amount of generated gas increased with the passage of time are mixed into the molten resin. While the temperature of the molten resin is kept between the melting point and the crystallization temperature of the resin, the movable mold is core-backed in the direction to be separated from the fixed mold to increase the volume of the cavity, and the polymer resin in the cavity is molded while being expanded by the physical blowing agent and the second blowing agent. The molten resin is oriented by making stretch distortion occur in the molten resin at a velocity of at least a critical stretch distortion velocity during the molding of the resin and crystallized by keeping the state to produce the resin molding.
    • 解决的问题:提供一种可以通过形状自由度高的相对简单的工艺制造具有高结晶度的聚合物树脂成型体的成型方法。 解决方案:将熔融的结晶聚合物树脂A'包装在由固定模具12和构成模具的活动模具13围绕的空腔15'中。 随着时间的推移,具有随产生气体积分量增加的物理发泡剂和第二发泡剂混入熔融树脂中。 当熔融树脂的温度保持在树脂的熔点和结晶温度之间时,可移动模具沿着与固定模具分离的方向为背心,以增加空腔的体积,并且聚合物树脂 在空腔中被物理发泡剂和第二发泡剂膨胀而成型。 熔融树脂通过在树脂成型期间以至少临界拉伸变形速度的速度在熔融树脂中发生拉伸变形而定向,并通过保持树脂成型的状态使其结晶化。 版权所有(C)2012,JPO&INPIT