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    • 5. 发明授权
    • Apparatus for runnerless injection compression molding of thermosetting
materials
    • 用于无浇注注射成型热固性材料的设备
    • US4370123A
    • 1983-01-25
    • US278238
    • 1981-06-29
    • W. Andrew DannelsRobert W. Bainbridge
    • W. Andrew DannelsRobert W. Bainbridge
    • B29C35/00B29C43/00B29C45/00B29C45/17B29C45/27B29C45/56B29C45/72B29G3/00
    • B29C45/2756B29C45/561B29C2045/567B29K2101/10
    • The apparatus of the present invention includes a stationary assembly and a movable assembly. The stationary assembly is comprised of a stationary platen which has a heat plate, a temperature-controlled sprue bushing and a mold face positioned thereon. The movable assembly is comprised of a movable platen which has a heat plate mounted thereon and a mold face, corresponding to, and adapted to be aligned with, the mold face on the stationary assembly to form a partially open mold cavity. Means are provided to feed a supply of thermosetting molding material through the sprue bushing into the partially open mold cavity. Means are provided to completely close the mold cavity and place the apparatus in a compression stage. In the injection and in the compression stages, the discharge end of the sprue bushing is in direct feed relationship with the mold cavity, allowing flow of molding material from the sprue bushing into the mold cavity in the injection stage and flow of molding material from the mold cavity into the sprue bushing in the compression stage. Means are also provided for the subsequent retraction of the movable assembly to allow removal of a molded article and access to the mold area.
    • 本发明的装置包括固定组件和可移动组件。 固定组件包括固定压板,其具有加热板,温度控制的浇道衬套和位于其上的模具面。 可移动组件包括可移动的压板,其具有安装在其上的加热板和对应于并适于与固定组件上的模具面对齐并且适于与固定组件上的模具面对准的模具面,以形成部分打开的模腔。 提供了用于将热固性成型材料供应通过浇道套管供给到部分打开的模腔中的装置。 提供装置以完全关闭模腔并将装置置于压缩阶段。 在注射和压缩阶段,浇道套管的排放端与模具腔直接进入关系,允许模制材料从浇口衬套流入注射阶段的模具腔,并将模制材料从 模腔在压缩阶段进入浇口衬套。 还提供了用于随后可移动组件缩回以允许去除模制品并进入模具区域的装置。
    • 6. 发明授权
    • Fabrication of thermoplastic optical components by injection/compression
molding
    • 通过注射/压缩成型制造热塑性光学部件
    • US4836960A
    • 1989-06-06
    • US104235
    • 1987-10-05
    • David P. SpectorJeffrey M. Kingsbury
    • David P. SpectorJeffrey M. Kingsbury
    • B29C43/02B29C43/08B29C43/34B29C43/36B29C45/56B29D11/00
    • B29D11/00192B29C43/021B29C43/361B29C45/561B29D11/00413B29C2043/3618B29C2043/3689B29C2045/5625B29C2045/567B29C43/08B29C43/34B29K2101/12B29L2011/0016Y10S425/201Y10S425/808
    • A method and apparatus for the fabrication of optical lenses by injection/compression molding of thermoplastic includes a plurality of sleeves, each having a bore therethrough, and a plurality of mold inserts dimensioned to be received in the bore with minimal clearance for sliding fit. The mold inserts each include a precision optical surface adapted to form a front or back surface of a lens. A selected pair of mold inserts are placed in the bore of a sleeve with front and back surface forming optical surfaces in confronting relationship to define a mold cavity, and the assembly is heated to a temperature above the glass transition temperature of the thermoplastic to be molded. An injection port extends through the sleeve to the bore, and is positioned to inject thermoplastic that has been heated to a fluid state into the cavity. After injection of the thermoplastic, the mold inserts are compressed together, and excess thermoplastic is forced out of the mold cavity. The mold inserts are then translated together relative to the sleeve to uncouple the injection port from the cavity. Compressive pressure is then maintained on the mold inserts while the mold assembly is cooled below the glass transition temperature. The mold inserts are pulled from the sleeve, and the finished lens is removed.
    • 用于通过注射/压缩模塑制造光学透镜的方法和装置包括多个套筒,每个套筒具有穿过其中的孔,以及多个模具插入件,其尺寸适于容纳在孔中,具有最小的滑动配合间隙。 模具插入件各自包括适于形成透镜的前表面或后表面的精密光学表面。 所选择的一对模具插入件被放置在套筒的孔中,其前表面和后表面形成面对关系的光学表面以限定模具腔,并且将组件加热到待模制的热塑性塑料的玻璃化转变温度 。 注射口通过套筒延伸到孔中,并且被定位成将已经被加热到流体状态的热塑性塑料注入腔中。 在注射热塑性塑料之后,将模具插入件压缩在一起,并将多余的热塑性塑料从模具腔中压出。 然后将模具插件相对于套筒平移在一起,以将注射口与空腔分离。 然后在模具组件冷却到玻璃化转变温度以下之前,将压缩压力保持在模具插入件上。 模具插入件从套筒中拉出,并且完成的镜片被移除。
    • 7. 发明申请
    • Injection Moulding Method
    • 注射成型法
    • US20120242005A1
    • 2012-09-27
    • US13499577
    • 2010-09-30
    • Peter Reginald Clarke
    • Peter Reginald Clarke
    • B29C45/56B29C45/57
    • B29C45/572B29C45/56B29C2045/563B29C2045/567B29K2105/253
    • A method of injection moulding an article, the method comprising the steps of: (a) providing an injection mould comprising first and second mould parts, and having at least one movable portion of one of the first and second mould parts; (b) disposing the first and second mould parts in a fully closed configuration so as to define mould cavity therebetween for moulding an article, in the fully closed configuration the first and second mould parts defining a cavity outer surface which defines the outer shape of the article to be moulded in the mould cavity; (c) injecting molten material into the cavity at an injection inlet of the cavity; (d) during the injecting step, moving at least one movable portion of one of the first and second mould parts from a forward position, defining the article to be moulded, to a rearward position thereby to increase the volume of the mould cavity in the fully closed configuration and to reduce the flow length/thickness ratio of the cavity; (e) filling the mould cavity with the molten material; and (f) after filling the mould cavity, returning the at least one movable portion from the rearward position to the forward position thereby expelling excess molten material back through the injection inlet.
    • 一种注射成型制品的方法,所述方法包括以下步骤:(a)提供包括第一和第二模具部件并具有第一和第二模具部件之一的至少一个可动部分的注射模具; (b)将第一模具部件和第二模具部件设置在完全关闭的构造中,以在其间限定用于模制制品的模腔,在完全关闭的构造中,第一和第二模具部件限定空腔外表面,其限定外部形状 要在模腔中成型的制品; (c)在空腔的注入口处将熔融材料注入空腔中; (d)在注射步骤期间,将第一和第二模具部件中的一个的至少一个可移动部分从限定待模制品的前部位置移动到后部位置,从而增加模具腔体中的体积 完全闭合配置并减少腔体的流动长度/厚度比; (e)用熔融材料填充模腔; 和(f)在填充模腔之后,将至少一个可动部分从后部位置返回到前部位置,从而通过注射入口排出多余的熔融材料。
    • 8. 发明授权
    • Injection compression molding method for optically molded products
    • 光学模制产品的注射压缩成型方法
    • US06705725B2
    • 2004-03-16
    • US10441072
    • 2003-05-20
    • Kiyohito GotohHiromi Ichioka
    • Kiyohito GotohHiromi Ichioka
    • G02C702
    • B29C45/561B29C2045/5615B29C2045/5635B29C2045/567B29C2945/76006B29C2945/76187B29L2011/0016Y10S425/808
    • A method of producing an optically molded product of a thermoplastic resin by injection compression molding, the method comprising the steps of: (1) expanding the volume of a cavity more than the volume of the optically molded product of interest; (2) injecting a molten thermoplastic resin into the cavity through an injection cylinder; (3) compressing the expanded cavity to a prescribed thickness of the molded product; (4) returning an excess of the thermoplastic resin produced by the compression into the injection cylinder; and (5) keeping the molten thermoplastic resin in the cavity until the molded product of interest is formed. The present invention makes it possible to produce an optically molded product (for example, a spectacle lens) free from a weld line and excellent in surface accuracy using a metal mold having a simple structure industrially advantageously.
    • 一种通过注射压缩成型制造热塑性树脂的光学模制产品的方法,所述方法包括以下步骤:(1)使空腔的体积比所关注的光学模制产品的体积更大;(2)注入 熔融的热塑性树脂通过注射缸进入腔体;(3)将膨胀的空腔压缩到规定厚度的模制产品;(4)将由压缩产生的过量的热塑性树脂返回到注射缸中; 和(5)将熔融的热塑性树脂保持在空腔中直到形成所关注的成型产品。本发明使得可以生产没有熔接线的光学模制产品(例如,眼镜镜片)并且具有优异的表面 使用在工业上有利的简单结构的金属模具的精度。