Systems and methods for making paperboard containers
    4.
    发明授权
    Systems and methods for making paperboard containers 失效
    制造纸板容器的系统和方法

    公开(公告)号:US06852071B2

    公开(公告)日:2005-02-08

    申请号:US10430389

    申请日:2003-05-07

    摘要: Systems and methods for making a paperboard container include a sidewall blank heater assembly having upper and lower sidewall blank heaters for simultaneously heating upper and lower edge strips of the sidewall blank adjacent lateral edges thereof, and a bottom sidewall seam heater for heating a generally curved strip adjacent an arcuate bottom edge of the sidewall blank simultaneously with the upper and lower edge strips. The sidewall blank is thereafter curved about a forming mandrel at a container-forming station so as to overlap the heated upper and lower edge strips of the sidewall blank to form a longitudinal container side seam, while the bottom edge of the sidewall blank is brought into contact with a paperboard bottom wall blank to form an annular container bottom seam. A bottom seam heater assembly is most preferably provided for circumferentially heating the container bottom seam simultaneously while the sidewall blank is curved about the forming mandrel at the container-forming station. In such a manner, high quality, leak proof seams of the paperboard container ensue.

    摘要翻译: 用于制造纸板容器的系统和方法包括:侧壁空白加热器组件,其具有用于同时加热侧壁坯料的相邻侧边缘的上边缘条和下边缘条的上侧壁和下侧壁坯加热器;以及底部侧壁接缝加热器,用于加热大致弯曲的带 邻近侧壁坯料的弓形底部边缘与上部和下部边缘条带同时。 然后,侧壁坯料在容器形成站处围绕成形心轴弯曲,以便与侧壁坯料的加热的上边缘条和下边缘条重叠以形成纵向容器侧接缝,而侧壁坯料的底部边缘被带入 与纸板底壁坯料接触以形成环形容器底部接缝。 最优选地设置底部接缝加热器组件,用于同时周向地加热容器底部接缝,同时侧壁坯料在容器成形工位处围绕成形心轴弯曲。 以这种方式,纸板容器的高质量,防漏缝接近。