公开(公告)号：US3862817A

公开(公告)日：1975-01-28

申请号：US46029474

申请日：1974-04-12

申请人： THERMO TRIM INC

发明人： DAHLBERG KURT GUNNAR

IPC分类号： B29C51/08 ,  B29C51/32 ,  B29C51/34 ,  B29C17/14

CPC分类号： B29C51/34 ,  B29C51/082 ,  B29C51/32 ,  Y10T83/8776 ,  Y10T83/9447

摘要： A latch opening in a plastic container is formed during the molding of the container. As mold parts close, a softened sheet of plastic is stretched over a die surface on one of the mold parts, and a former carried by the other mold part is pressed into contact with the die surface to cut through the plastic along one edge of the latch opening. As the mold parts close further, the former scrapes along the die surface and pushes the plastic across a scraped region away from the cut to form a compressed wall of plastic spaced from the cut to form the latch opening.

摘要翻译： 在容器成型期间形成塑料容器中的一个开口。 当模具零件闭合时，软化的塑料片在其中一个模具部件上的模具表面上被拉伸，并且由另一个模具部件承载的前者被压制成与模具表面接触，以沿着模具表面的一个边缘切割塑料 闩锁开口。 当模具部件进一步靠近时，前者沿着模具表面刮擦并将塑料推过远离切割部分的刮擦区域以形成与切口间隔开的压缩塑料壁以形成闩锁开口。