公开(公告)号：US4986054A

公开(公告)日：1991-01-22

申请号：US380485

申请日：1989-07-17

申请人： Michael J. McMahon

发明人： Michael J. McMahon

IPC分类号： B65B9/20 ,  B65B9/213

CPC分类号： B65B9/2042 ,  B65B9/213

摘要： A method and apparatus for forming bags, such as from a continuous sheet of thermoplastic film fed forwardly and wrapped over a forming tube with the contents being filled into the bag through the tube and the end of the film formed into a bag tube being cross-sealed. The lower end of the filling tube is constructed so as to elastically deform and spread as sealing members move in laterally and thereby spread and flatten the tube to insure the making of a seal which is devoid to wrinkles and leakage possibilities.

摘要翻译： 一种用于形成袋的方法和装置，例如从向前馈送并缠绕在成形管上的热塑性膜的连续片材，其中内容物通过管被填充到袋中，并且膜的端部形成袋管， 密封。 填充管的下端构造成随着密封构件横向移动而弹性变形和扩散，从而使管扩展和变平，以确保制造没有皱纹和泄漏可能性的密封。