| 摘要 |
An apparatus for heat sealing of plastic bags having a main assembly for sealing, which includes drive and control means and a removeable heat sealing head having confronting heat transfer means between and in contact with which the bags pass, such that confronting side walls thereof are heat sealed, the heat sealing head constituting a sub-assembly provided with its own drive means and adapted to be received in said main assembly through a single drive means. |
