Multi-layer hollow body, method for manufacturing such a hollow body, and compression-blow-molding mould
    2.
    发明授权
    Multi-layer hollow body, method for manufacturing such a hollow body, and compression-blow-molding mould 失效
    多层空心体,这种中空体的制造方法以及压缩吹塑成型模具

    公开(公告)号:US06808673B2

    公开(公告)日:2004-10-26

    申请号:US10695740

    申请日:2003-10-30

    Abstract: A hollow body is formed from several multi-layer plastic elements which are welded together and comprise a barrier layer that is a barrier to liquids and to gases. The elements form an appendage which extends from an outer surface of the hollow body, wherein the appendage comprises two multi-layer plastic layers, each of the two layers having a respective barrier layer. A method for manufacturing the hollow body includes using compression moulding in a multi-part mould comprising welding kerbs. When the mould is being closed, at least the barrier layers of the multi-layer plastic elements are forced to flow into a shallow slot formed between the welding kerbs of the closed mould. A multi-part compression-blow-moulding mould comprises welding kerbs which, when the mould is closed, form a slot or space between them with a height of cross section that decreases towards the outside of the mould and which is extended by a shallow and broad slot intended to compress the plastic.

    Abstract translation: 中空体由若干多层塑料元件形成,这些多层塑料元件被焊接在一起,并且包括阻挡层,其是对液体和气体的屏障。 元件形成从中空体的外表面延伸的附件,其中附件包括两个多层塑料层,两层中的每一层具有相应的阻挡层。 用于制造中空体的方法包括在包括焊接路缘石的多部分模具中使用压缩模制。 当模具闭合时,至少多层塑料元件的阻挡层被迫流入形成在封闭模具的焊接边缘之间的浅槽中。 多部分压缩吹塑模具包括焊接边缘,当模具关闭时,它们在它们之间形成一个横截面高度的槽或空间,其朝向模具的外部减小,并且延伸通过浅和 宽槽用于压缩塑料。

    Method and apparatus for making plastic film, and plastic film
    3.
    发明授权
    Method and apparatus for making plastic film, and plastic film 失效
    制造塑料薄膜和塑料薄膜的方法和设备

    公开(公告)号:US06767501B1

    公开(公告)日:2004-07-27

    申请号:US09647739

    申请日:2000-10-04

    Inventor: Kari Kirjavainen

    Abstract: A film is extruded from plastic material by an extruder. The film is orientated after extrusion. Material is mixed into the plastic so that when the plastic film is stretched, cavitation bubbles are formed in the material particles mixed into the plastic. During the orientation, gas is arranged to the plastic film under high pressure so that the gas diffuses in the cavitation bubbles and causes overpressure in them. Thus, it is possible to make a thin foamed film with a foaming degree over 70%.

    Abstract translation: 通过挤出机从塑料材料中挤出薄膜。 挤出后取向。 将材料混合到塑料中,使得当塑料膜被拉伸时,在混合到塑料中的材料颗粒中形成气泡。 在取向期间,气体在高压下被布置到塑料膜上,使得气体在空化气泡中扩散并在其中引起超压。 因此,可以制造发泡度超过70%的薄发泡膜。

    Vertical twin-sheet vacuum forming method
    5.
    发明授权
    Vertical twin-sheet vacuum forming method 失效
    立式双页真空成型法

    公开(公告)号:US06440353B1

    公开(公告)日:2002-08-27

    申请号:US09453119

    申请日:1999-12-02

    Applicant: Paul Hutchins

    Inventor: Paul Hutchins

    Abstract: A method of twin-sheet vacuum forming plastic articles having the steps of clamping two parallel sheets of thermoplastic synthetic resin in a vertical orientation to a clamping tray and blowing air between the parallel sheets thereby creating a hollow cavity between the two parallel sheets. The two parallel sheets are then heated to molding temperature between two vertically oriented heaters. The two parallel sheets are disposed between opposing mold cavities of a vertically oriented split mold wherein the mold cavities have a contour conforming the configuration of the desired article. A negative pressure is applied to suction holes provided in the mold cavities which draw the two parallel sheets against each opposing mold cavity. The split mold is then clamped together to form a pinch off around the perimeter of the hollow cavity thereby forming a molded hollow part still disposed within the clamping tray. Simultaneously, a blow pin inserted into the hollow cavity injects compressed air further presses the heated sheets against the mold cavities. The molded hollow part is allowed to cool to a set point and the vertically oriented split mold is opened. The clamping tray is withdrawn from the split mold and shuttled away from the mold cavities where the molded hollow part is cut away from the clamping tray, still in a vertical position.

    Abstract translation: 一种双层真空成型塑料制品的方法,其具有将两个平行的热塑性合成树脂片沿竖直方向夹紧到夹紧盘并在平行片之间吹送空气的步骤,从而在两个平行片材之间形成中空空腔。 然后将两个平行的片材加热到两个垂直取向的加热器之间的成型温度。 两个平行的片材设置在垂直定向的分开模具的相对的模腔之间,其中模腔具有符合期望制品的构造的轮廓。 对设置在模腔中的抽吸孔施加负压,其将两个平行的片材相对于每个相对的模腔拉出。 然后将分开的模具夹紧在一起以形成围绕中空腔的周边的夹紧,从而形成仍设置在夹紧托盘内的模制中空部件。 同时,插入中空腔中的吹塑针头注射压缩空气还将加热的片材压靠在模腔上。 将模制的中空部件冷却至设定点,并且将垂直定向的分型模具打开。 夹紧托盘从分开的模具中取出,并从模具腔中穿过,模制中空部件从夹紧托盘切割,仍处于垂直位置。

    Process for producing hollow plastic receptacles
    6.
    发明授权
    Process for producing hollow plastic receptacles 失效
    生产中空塑料容器的工艺

    公开(公告)号:US06426035B1

    公开(公告)日:2002-07-30

    申请号:US07637971

    申请日:1991-01-09

    Applicant: Bernd Hansen

    Inventor: Bernd Hansen

    CPC classification number: B29C51/267 A61J1/067 B29C49/0047

    Abstract: In the production of hollow plastic receptacles from two areas of a strip of starting material, all of each receptacle can be formed from the strip, or half of each receptacle can be formed from the strip with the halves welded together to complete the receptacles. Outside of part of at least one of the fusion seams, a marginal piece of waste segment forms at least one hollow body.

    Abstract translation: 在从起始材料条的两个区域生产中空塑料容器时,每个容器都可以由条形成,或者每个容器的一半可以由条带形成,其中半部焊接在一起以完成容器。 在至少一个熔接缝的一部分之外,边缘的废料段形成至少一个中空体。

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