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74 条记录 (耗时 0.021 秒)

    Method of coating and cutting wrapper blanks
    11.
    发明授权
    Method of coating and cutting wrapper blanks 失效
    涂层和切割包装坯料的方法

    公开(公告)号：US4119452A

    公开(公告)日：1978-10-10

    申请号：US879949

    申请日：1978-02-21

    申请人： Erik Stolpe ,  Arto Honkanen ,  Erkki Laiho

    发明人： Erik Stolpe ,  Arto Honkanen ,  Erkki Laiho

    IPC分类号： B29D22/00 ,  B29C61/00 ,  B29C69/00 ,  B31B1/14 ,  B31B1/64 ,  B31B7/00 ,  B31B23/14 ,  B31B39/00 ,  B32B37/00 ,  B65D65/00 ,  B65D65/02 ,  B29C27/14

    CPC分类号： B32B38/0004 ,  B32B37/1045 ,  B31B2217/0084

    摘要： A method of manufacturing packaging-container blanks is disclosed which method includes forming a substantially continuous sheet of blanks which sheet comprises a substrate and a coating material attached to said substrate. The coating material at the edges of the blanks of said sheet either extends beyond the substrate or is unattached to the substrate adjacent the edge, or both. The sheet of blanks is manufactured by extruding a molten thermoplastic coating material onto the substrate between two revolving cylindrical rolls. The substrate and the coating material are joined in such a manner that at spaced, selected intervals, elongated zones are provided where they are unattached to each other. These unattached zones include zones extending transversely with respect to the sheet of blanks and which transversely extending unattached zones are produced by grooves on the periphery of at least one of the rolls which grooves are suitably arranged at intervals about the periphery of the roll to correspond to the pre-selected unattached zones desired. The substrate is perforated transversely within the unattached zones so that it may be parted after the coating material is applied by means of a longitudinal jerk. The coating material is cut along the zones by means of blades arranged in the grooves on the grooved roll. Such blades arranged in the grooves may also be used to cut the substrate if desired rather than using the perforated-jerk arrangement. Longitudinally extending unattached zones are also contemplated. Also disclosed is an apparatus for performing the above method.

    摘要翻译： 公开了一种制造包装容器坯料的方法，该方法包括形成基本上连续的坯料片，该片材包括基底和附着到所述基底的涂层材料。 所述片材的坯料边缘处的涂层材料或者延伸超过衬底，或者不邻近衬底附接到衬底或两者。 通过在两个旋转的圆柱形辊之间将熔融的热塑性涂层材料挤压到基底上来制造坯料片。 衬底和涂层材料以这样一种方式连接，使得在间隔开的选择的间隔处，提供细长区域，其中它们彼此不相连。 这些未连接区域包括相对于坯料片横向延伸的区域，并且横向延伸的未附着区域由至少一个辊的周边上的凹槽产生，这些槽适当地围绕辊的周边间隔布置，以对应于 预先选择的未连接区域需要。 衬底在未附着的区域内横向地穿孔，使得其可以在通过纵向冲击施加涂覆材料之后被分离。 通过设置在带槽辊上的槽中的刀片沿着区域切割涂层材料。 布置在凹槽中的这样的刀片也可用于根据需要而不是使用穿孔冲击装置来切割衬底。 也可以设想纵向延伸的未附着区域。 还公开了用于执行上述方法的装置。