Patent ID: 6860843
Filing Date: 2005-03-01
Classification: B23K,B29C,B31B,B65B,B65D

Abstract:
1. A package manufacturing system for manufacturing a package by uniting films opposite to each other, each having at least a laser beam absorbing layer, said package manufacturing system comprising: a film feed line for feeding the films; a heat-sealing unit disposed on the film feed line for uniting the laminated films; a laser beam machining unit for projecting laser beams on respective surfaces of the films to form tearing incisions on a surface of the films by heating and melting the laser beam absorbing layers of the films; and a cutting unit for cutting the laminated films into a package, wherein the laser beam machining unit comprises a first laser heating device disposed on the film feed line to form the tearing incisions on the surface of one of the films by heating and melting the laser absorbing layer of the film with laser beams, and a second laser heating device disposed on the film feed line to form the tearing incisions on the surface of the other of the films by heating and melting the laser absorbing layer of the film with laser beams; and the first and the second laser heating devices are supported on a base.