Apparatus for making plastic bags
    4.
    发明授权
    Apparatus for making plastic bags 失效
    制造塑料袋的装置

    公开(公告)号:US3802308A

    公开(公告)日:1974-04-09

    申请号:US30261472

    申请日:1972-10-31

    发明人: DAVIS F

    IPC分类号: B31B19/14 B26F1/02 B26F1/12

    摘要: Apparatus is disclosed for making open-gusset bags from overlapping webs of thermoplastic material. A notch-perforator is provided along a side edge of the web for providing sets of notches and perforations or slits at spaced points along the web. V-shaped notches are applied to the gusset portion of the web and then the web is slit and welded transversely to divide the web into bags.

    摘要翻译: 公开了用于从热塑性材料的重叠网制作开口角撑袋的装置。 沿着幅材的侧边缘设置切口穿孔器,用于在沿着幅材的间隔点处提供一组凹口和穿孔或狭缝。 将V形凹口施加到幅材的角撑部分,然后横向地切割并焊接幅材以将幅材分成袋。

    Apparatus for making plastic bags
    10.
    发明授权
    Apparatus for making plastic bags 失效
    制造塑料袋的装置

    公开(公告)号:US3739694A

    公开(公告)日:1973-06-19

    申请号:US3739694D

    申请日:1970-11-25

    发明人: DAVIS F

    IPC分类号: B31B19/14 B31B1/14 B31B1/64

    摘要: Apparatus is disclosed for making open-gusset bags from overlapping webs of thermoplastic material. A notch-perforator is provided along a side edge of the web for providing sets of notches and perforations or slits at spaced points along the web. V-shaped notches are applied to the gusset portion of the web and then the web is slit and welded transversely to divide the web into bags.

    摘要翻译: 公开了用于从热塑性材料的重叠网制作开口角撑袋的装置。 沿着幅材的侧边缘设置切口穿孔器,用于在沿着幅材的间隔点处提供一组凹口和穿孔或狭缝。 将V形凹口施加到幅材的角撑部分,然后横向地切割并焊接幅材以将幅材分成袋。