Apparatus and method for injection molding opening devices on sheet packaging material for packaging pourable food products
    5.
    发明公开
    Apparatus and method for injection molding opening devices on sheet packaging material for packaging pourable food products 有权
    装置和方法,用来打开在片状包装材料的设备用于包装食品产品的注射成型ausgießbarer

    公开(公告)号:EP2361743A1

    公开(公告)日:2011-08-31

    申请号:EP10154423.7

    申请日:2010-02-23

    Abstract: An apparatus (10) for injection molding an opening device (3) on a multilayer sheet packaging material (2) provided with a hole (9) having an axis (B), formed through a first layer (4) and sealed by a cover portion (11) of a second layer (5, 6); the apparatus (10) comprises a mold cavity (31) coaxially housing the cover portion (11) and in turn comprising a first confetti-shaped chamber (32) adapted to be filled with molten plastic material on a first side (11a) of the cover portion (11), and a second tubular chamber (33) projecting along the axis (B) from the first chamber (32) and adapted to be filled with the molten plastic material coming from the first chamber (32) through an annular peripheral portion of the cover portion (11) to form, on a second side (11b) of the cover portion (11), a spout (13) of the opening device (3); the apparatus (10) further comprises an annular rib (41) delimiting a narrow-section passage (42) connecting the first and second chamber (32, 33) and defining, when filled with the plastic material, an annular tearable membrane connection portion (19) between the spout (13) and the plastic material covering the cover portion; the annular rib (41) is bounded, on the first chamber side, by a first annular surface (43), which is parallel to the axis (B) and forms a sharp edge (46) against which the cover portion (11) is stretched by the pressure of the plastic material.

    Abstract translation: 在(3)上的多层片状包装材料的开启装置的注射成型装置(10)的孔(2)设置有(9),其具有上轴(B),通过第一层(4)形成,并且密封由盖 的第二层的部分(11)(5,6); 该装置(10)包括模腔(31)同轴地容纳所述盖部分(11)和又包括第一纸屑形室(32)angepasst到上的第一侧(11a)中被填充有熔融的塑料材料 盖部分(11)和第二管状腔(33)沿从所述第一腔室(32)和angepasst轴线(B)突出,以充满熔融的塑料材料通过从所述第一腔室(32)来在环形设计周 盖部分(11)的部分,以形成,在第二侧上的开口装置(3)的盖部分(11),一个出口(13)的(11B); 该装置(10)还包括环形的设计(41)的肋限定一窄部通道(42)连接所述第一和第二腔室(32,33)和定义,当填充有塑料材料,(在环形可撕裂膜连接部分 19)的喷口(13)和覆盖所述盖部分中的塑料材料之间; 环形肋(41)为界,在所述第一室侧,由一个第一环形设计表面(43),其平行于该轴线(B)并形成锋利的边缘(46)抵靠所述盖部分(11)是 由塑料材料的压力拉伸。

    ELECTRONIC DEVICE AND METHOD OF FORMING THE SAME
    6.
    发明公开
    ELECTRONIC DEVICE AND METHOD OF FORMING THE SAME 审中-公开
    电子装置及其形成方法

    公开(公告)号:EP2326480A1

    公开(公告)日:2011-06-01

    申请号:EP09815608.6

    申请日:2009-09-23

    Abstract: The present invention discloses a method of forming an electronic device having a metal piece and a plastic piece adhered to the metal piece and an electronic device formed therefrom. The method comprises the following steps: An adhering part on a surface of the metal piece is formed which at least partially covers the surface thereof. The plastic piece is formed by injection molding using plastic material which is adhered to the metal piece with the adhering part being connected between the plastic piece and the metal piece. According to the method of the present invention, the bonding force between the metal piece and the plastic piece is improved accordingly, and the service time of the electronic device is extended accordingly.

    Abstract translation: 本发明公开了一种形成电子器件的方法,该电子器件具有金属片和粘附到金属片上的塑料片以及由其形成的电子器件。 该方法包括以下步骤:在金属片的表面上形成至少部分覆盖其表面的粘附部分。 所述塑料件通过使用塑料材料注塑成型而形成,所述塑料材料粘附到所述金属件上,并且所述塑料件与所述金属件之间连接有粘接部分。 根据本发明的方法,金属片和塑料片之间的结合力相应提高,并且电子装置的使用时间相应地延长。

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