Trimming of polyester containers using a laser
    61.
    发明授权
    Trimming of polyester containers using a laser 失效
    使用激光修整聚酯容器

    公开(公告)号:US4539463A

    公开(公告)日:1985-09-03

    申请号:US644471

    申请日:1984-08-27

    摘要: A plastic jar is formed by blow molding a combination adapter and jar and thereafter the jar is cut from the adapter utilizing a laser beam. The jar may be blow molded from a preform which is of an injection molded laminated construction so that the wall of the jar is formed of plural layers. The head generated by the laser beam will melt and bond together these layers as opposed to permitting delamination as would occur should the jar be cut from the adapter by a knife or the like. The cut surface of the jar forms the mouth defining surface of the jar and it is preferred that the cut be inclined at a slight angle to a plane normal to the axis of the jar. Damage to the diametrically opposite surface of the jar by portions of the laser beam being utilized for cut off passing through the jar is prevented by a pressurized gas supply tube which is in the path of the laser beam and serves as an absorber for stray rays. This abstract is not to be construed as limiting the claims of the application.

    摘要翻译: 通过吹塑组合适配器和罐形成塑料罐,然后使用激光束从适配器切割罐。 罐可以由注射成型的层压结构的预成型件吹塑成,使得罐的壁由多层形成。 由激光束产生的头部将熔化并将这些层粘合在一起,而不会如通过刀等从适配器切割瓶子时发生分层。 罐的切割表面形成罐的口部限定表面,并且优选地,切口以与垂直于罐的轴线的平面成微小的角度倾斜。 通过用于切断通过罐的激光束的部分通过在激光束的路径中的加压气体供应管来防止由罐的径向相对的表面的损坏,并且用作杂散射线的吸收体。 本摘要不应被解释为限制本申请的权利要求。