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公开(公告)号:US07980047B1
公开(公告)日:2011-07-19
申请号:US09614898
申请日:2000-07-12
IPC分类号: B65B51/22
CPC分类号: B29C65/222 , B29C65/18 , B29C65/226 , B29C65/228 , B29C65/229 , B29C65/743 , B29C65/7433 , B29C65/7847 , B29C66/0044 , B29C66/137 , B29C66/431 , B29C66/8122 , B29C66/81427 , B29C66/81457 , B29C66/8161 , B29C66/81821 , B29C66/81871 , B29C66/83511 , B29C66/83521 , B29C66/8511 , B29K2883/00 , B29K2827/18 , B29C65/00 , B29K2909/08 , B29K2909/02
摘要: A method of severing and sealing a film formed of a thermoplastic material includes heating a cutting edge implement to a temperature sufficient to melt but not to burn the thermoplastic material, feeding a plurality of layers of the film between the cutting edge implement and an opposing surface, and moving the cutting edge implement, which is preferably a supported hot wire, and the opposing surface relative to one another to pinch the plurality of layers of film therebetween. Thereafter, any relative lateral movement between the cutting edge implement, the film, and the opposing surface is suspended, while the cutting edge implement and the opposing surface are relatively biased together with the plurality of layers of film pinched therebetween, until the cutting edge implement cuts through the plurality of layers of film, contacts the opposing surface, and seals the plurality of layers of film together.
摘要翻译: 一种切割和密封由热塑性材料形成的薄膜的方法包括将切割边缘工具加热到足以熔化但不燃烧热塑性材料的温度,在切割边缘工具和相对表面之间输送多层薄膜 并且移动优选为支撑的热丝的切割刃工具和相对于彼此的相对表面以将多个膜层夹在其间。 此后,切割边缘工具,膜和相对表面之间的任何相对横向移动被悬挂,同时切割边缘工具和相对表面与夹在其间的多个膜层相对地偏置,直到切割边缘工具 切割多层薄膜,接触相对表面,并将多层薄膜密封在一起。