Gas-feeding nozzle
    1.
    发明授权
    Gas-feeding nozzle 失效
    加气喷嘴

    公开(公告)号:US5465908A

    公开(公告)日:1995-11-14

    申请号:US200517

    申请日:1994-02-23

    IPC分类号: B29C45/17 B05B1/32

    CPC分类号: B29C45/1734 Y10S239/19

    摘要: A gas-feeding nozzle 10 for use in a mold 42 attached to an injection molding machine and for introducing a pressurized gas into a molten resin 60 injected into the cavity 48 of the mold, for producing a molded article having a hollow structure, the gas-feeding nozzle 10 comprising a non-return valve 12 provided at an outlet end of the gas-feeding nozzle 10 and a mechanism 14 for preventing the inflow of molten resin, the mechanism is provided upstream to the non-return valve 12 in the flow direction of the pressurized gas.

    摘要翻译: 一种用于安装在注射成型机上的模具42中并用于将加压气体引入注入到模具的空腔48中的熔融树脂60中的用于生产具有中空结构的模制品的气体供给喷嘴10, 供给喷嘴10包括设置在供气喷嘴10的出口端的止回阀12和用于防止熔融树脂流入的机构14,该机构设置在流动中的止回阀12的上游 加压气体的方向。

    Light guide plate with convex portions having low radius of curvature tips, or low surface roughness
    2.
    发明授权
    Light guide plate with convex portions having low radius of curvature tips, or low surface roughness 有权
    具有凸起部分的导光板具有低的曲率半径,或低的表面粗糙度

    公开(公告)号:US07048428B2

    公开(公告)日:2006-05-23

    申请号:US10119767

    申请日:2002-04-11

    IPC分类号: F21V7/22

    摘要: A light guide plate made of a transparent resin includes a first main surface and a second main surface opposite to the first main surface. The first main surface has a surface portion provided with convex portions having a height in the range of 5×10−7 m to 6×10−5 m each and a pitch in the range of 5×10−7 m to 4×10−4 m. The light guide plate having tip portions of at least 80% of the total convex portions with a radius of curvature of 2×10−6 m or less, or the surface of the convex portions having a surface roughness of 3×10−7 m or less.

    摘要翻译: 由透明树脂制成的导光板包括与第一主表面相对的第一主表面和第二主表面。 第一主表面具有设置有各自的凸起部分的表面部分,每个凸起部分的高度范围为5×10 -7〜6×10 -5〜 5×10 -7至4×10 -4 m。 该导光板具有至少80%的总凸起部分的曲率半径为2×10 -6或更小的尖端部分,或凸面部分的表面粗糙度为3×10 6 -7以下。

    Molding method for producing molded article having a hollow portion
    3.
    发明授权
    Molding method for producing molded article having a hollow portion 失效
    用于制造具有中空部分的模塑制品的成型方法

    公开(公告)号:US5705107A

    公开(公告)日:1998-01-06

    申请号:US591720

    申请日:1996-01-25

    IPC分类号: B29C45/57 B29C45/00 B29C45/17

    CPC分类号: B29C45/1732

    摘要: A method for the production of a molded article having a hollow portion by utilizing a gas compression apparatus having a gas source, a compressor composed of a piston and a cylinder, and a discharge valve for controlling the flow of pressurized gas discharged from the cylinder, the method comprising introducing the pressurized gas through the discharge valve into a molten resin injected into a cavity of a mold, under the control of the discharge valve while carrying out, in one molding cycle, the intake step of supplying gas from the gas source to the cylinder and the compression step of compressing the gas by movement of the piston in the cylinder, at least twice each on the basis of predetermined compressor operation conditions, and thereby forming the hollow portion in the molded article.

    摘要翻译: 一种利用具有气体源的气体压缩装置,由活塞和气缸构成的压缩机以及用于控制从气缸排出的加压气体的流动的排出阀来制造具有中空部的成形体的方法, 所述方法包括在排出阀的控制下将加压气体通过排出阀引入注入到模具的空腔中的熔融树脂中,同时在一个模制循环中,将从气源供应气体的进气步骤 气缸和通过活塞在气缸中移动来压缩气体的压缩步骤,基于预定的压缩机操作条件至少两次,从而在模制品中形成中空部分。

    Mold apparatus for process for injection molding
    4.
    发明授权
    Mold apparatus for process for injection molding 失效
    注模成型用模具装置

    公开(公告)号:US5639417A

    公开(公告)日:1997-06-17

    申请号:US463268

    申请日:1995-06-05

    IPC分类号: B29C45/17 B29C45/00

    CPC分类号: B29C45/1705 B29C2045/1724

    摘要: A process for the production of a molded article having a hollow structure, using an injection molding machine equipped with a mold apparatus having a mold provided with a cavity, said process comprising the steps of(a) positioning a plug in its forward end position in the cavity with a plug-moving means before a molten resin is injected,(b) moving the plug toward its backward end position nearly in parallel with a flow-axis direction of the molten resin, with the plug-moving means or under a pressure of the injected molten resin, after the injection of the molten resin is initiated,(c) introducing a pressurized fluid into the molten resin in the cavity through a pressurized fluid introducing portion while the plug is moving, and(d) moving the plug up to its backward end position nearly in parallel with the flow-axis direction of the molten resin with the plug-moving means or under the pressure of the molten resin and/or the pressurized fluid introduced into the molten resin, and then, cooling and solidifying the molten resin in the cavity to form a hollow structure in the resin.

    摘要翻译: 一种制造具有中空结构的成型制品的方法,该方法使用配备有具有模腔的模具装置的注模机,所述模具装置具有模腔,所述模具具有模腔,所述方法包括以下步骤:(a)将插塞的前端位置定位在 在熔融树脂注入之前具有插塞移动装置的空腔,(b)使用塞子移动装置或在压力下将塞子朝向与熔融树脂的流动轴线方向大致平行的后端位置移动 注入熔融树脂后,(c)在塞子移动时通过加压流体导入部分将加压流体引入腔内的熔融树脂中,并且(d)将塞子向上移动 到其后端位置与熔融树脂的流动轴线方向几乎平行于插塞移动装置或在熔融树脂的压力下和/或引入熔融树脂的加压流体中,t 母鸡,冷却并固化空腔中的熔融树脂,以在树脂中形成中空结构。

    Injection-molded article having high-quality appearance
    5.
    发明授权
    Injection-molded article having high-quality appearance 失效
    具有高品质外观的注塑制品

    公开(公告)号:US5403647A

    公开(公告)日:1995-04-04

    申请号:US983755

    申请日:1992-12-01

    IPC分类号: B29C45/17 B32B3/00

    摘要: An injection-molded article of a thermoplastic resin having a base body defining an outer shape of the injection-molded article, a thick-wall portion rising from the base body, and a foot portion formed on the base body and at a foot of the thick-wall portion, the foot portion rising from the base portion, having a thickness which gradually increases toward the thick-wall portion, and having a (maximum thickness of the foot portion)/(width extending from the thick-wall portion to an end of the foot portion) ratio of 1/40 to 1/2, at least the thick-wall portion having a hollow portion.

    摘要翻译: 一种热塑性树脂的注塑制品,具有限定注塑制品的外形的基体,从基体上升的厚壁部分和形成在基体上的脚部, 厚壁部,从基部突出的脚部,具有朝向厚壁部逐渐增大的厚度,并且具有(从脚部的最大厚度)/(从厚壁部向宽度部延伸的宽度 脚部的末端)比率为1/40至1/2,至少厚壁部分具有中空部分。

    Pressurized gas introducing device, and injection molding method for moldings having hollow portion
    6.
    发明授权
    Pressurized gas introducing device, and injection molding method for moldings having hollow portion 有权
    加压气体引入装置和具有中空部分的模制品的注射成型方法

    公开(公告)号:US07521016B2

    公开(公告)日:2009-04-21

    申请号:US10514315

    申请日:2003-07-02

    IPC分类号: B29C45/17

    CPC分类号: B29C45/1732

    摘要: An apparatus for introducing a pressurized gas includes a pressurized-gas supply-source, a plurality of measuring tanks, a first pressurized-gas supply-line, pressurized-gas supply valves in the first pressurized-gas supply-line, second pressurized-gas supply-lines and pressurized-gas discharge-control valves disposed in the second pressurized-gas supply-lines. A combination of the measuring tanks is determined on the basis of the amount of a pressurized gas required for forming a hollow portion in a molded article, and the pressurized-gas discharge-control valves disposed in the second pressurized-gas supply-lines are controlled on the basis of the above determination.

    摘要翻译: 一种用于引入加压气体的装置包括加压气体供应源,多个测量罐,第一加压气体供应管线,第一加压气体供应管线中的加压气体供应阀,第二加压气体 设置在第二加压气体供给线路中的供给线路和加压气体排出控制阀。 基于在成型品中形成中空部所需的加压气体的量来确定测量罐的组合,并且控制设置在第二加压气体供给管线中的加压气体排出控制阀 在上述决定的基础上。

    Method of injection molding with air assist for making a handle-shaped
molded article
    8.
    发明授权
    Method of injection molding with air assist for making a handle-shaped molded article 失效
    用于制造手柄形模制品的气体辅助注射成型方法

    公开(公告)号:US5308574A

    公开(公告)日:1994-05-03

    申请号:US877425

    申请日:1992-05-01

    IPC分类号: B29C45/17 B29C45/18

    CPC分类号: B29C45/1704

    摘要: A method for producing a handle-shaped molded article (1) having a thick grip portion (2) and at least one thick fitting portion (3) by injection molding using an injection molding apparatus (10) equipped with a mold having a cavity (60), a resin gate (46) provided in a portion (62) where the fitting portion is to be formed and a gas inlet (48) provided in a portion (64) where the grip portion is to be formed. A hollow structure (4) is formed in the grip portion (2) and a solid structure is formed in the fitting portion (3) by injecting a molten resin into the cavity (60) through the resin gate (46), thereby filling molten resin in a fitting portion-forming cavity zone formed of that portion (62) of the mold where the resin gate is provided and the fitting portion is to be formed and further filling molten resin in part of the rest of the cavity. A pressurized gas is introduced into the cavity (60) through the gas inlet (48) while maintaining an injection pressure, P, at a predetermined value, the injection pressure, P, being defined byP=F/Swherein P is an injection force and S is a cross-sectional area of a screw (12) of the injection molding apparatus, and maintaining the injection pressure and gas pressure in the gas inlet (48) at predetermined values until the molten resin is cooled and solidified.

    摘要翻译: 一种通过注射成型装置(10)制造具有厚抓握部分(2)和至少一个厚配合部分(3)的把手形模制品(1)的方法,注射模制装置(10)装备有具有空腔的模具 60),设置在其中将形成配合部分的部分(62)中的树脂浇口(46)和设置在要形成握持部分的部分(64)中的气体入口(48)。 在把手部分(2)中形成中空结构(4),并且通过树脂浇口(46)将熔融树脂注入到空腔(60)中,在装配部分(3)中形成实心结构,从而将熔融的 在设置有树脂浇口的模具的该部分(62)形成的装配部分形成腔区域中的树脂,并且将形成装配部分,并且在空腔的其余部分的一部分中进一步填充熔融树脂。 通过气体入口(48)将加压气体引入空腔(60),同时将注射压力P保持在预定值,注射压力P由P = F / S定义,其中P是注射 力和S是注射成型设备的螺杆(12)的横截面面积,并且将气体入口(48)中的注射压力和气体压力保持在预定值,直到熔融树脂冷却和固化。

    Apparatus for injecting a gas into molten resin in a cavity of an
injection molding machine
    9.
    发明授权
    Apparatus for injecting a gas into molten resin in a cavity of an injection molding machine 失效
    注射成型注塑机空气中的气体的装置

    公开(公告)号:US5056997A

    公开(公告)日:1991-10-15

    申请号:US439421

    申请日:1989-11-21

    IPC分类号: B29C45/00 B29C45/17

    CPC分类号: B29C45/1732

    摘要: A gas injection technique of injecting an inert gas (e.g., nitrogen gas) into a molten resin in a cavity, involves utilizing the strokes of reciprocation of a piston in the compression cylinder are used in a series mode, to perform a two-stage compression within the same cylinder, thereby providing a high-pressure gas. The method can also include establishing a relationship or pattern of the amount of movement of the piston with the speed of movement of the piston established to provide optimum control of the relationship between the pressure generated and piston stroke, and quantity of gas injected. The injecting gas pressure can be detected, to control a hold pressure, or the relationship between a piston stroke and generated pressure, so as to obtain optimal injecting pressure during the injection molding operation. A gas injection apparatus comprises a compression cylinder with a piston wherein the volumes of the two chambers on both sides of the piston are of such a compression ratio to provide the first compression. The apparatus also includes pipe lines communicating the two chambers with each other through a check valve, a gas supplying conduit pipe connected upstream of the check valve, and a conduit pipe connecting the chamber located downstream of the check valve to the cavity, wherein the piston is reciprocated to perform two-stage compression to provide a high pressure gas as required.