发明名称 |
DEVICE FOR PULLING AND POENING TUBE SECTION FOR FORMING BAG BOTTOM OF SQUARE IN MANUFACTURE OF CROSSED BOTTOM BAG |
摘要 |
An apparatus for opening and folding the end of a flattened tubular sheet to define the rectangular base of a bag or sack to be made from the sheet comprises a table having a slot through which the flattened sheet projects, the projection being formed into a bag base by suckers locating the projection in a pre-opened condition and grippers which engage opposed margins of the projection, one of the grippers being fixed and the other being secured to a pivotable arm. |
申请公布号 |
JPS5624154(A) |
申请公布日期 |
1981.03.07 |
申请号 |
JP19800103003 |
申请日期 |
1980.07.25 |
申请人 |
WINDMOELLER & HOELSCHER |
发明人 |
FURITSUTSU ATSUHERUPOORU;BUERUNAA DETSUKAA |
分类号 |
B31B1/26;B31B1/28;B31B1/76;B31B1/80;B31B23/74;B31B29/26 |
主分类号 |
B31B1/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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