Patent ID: 8146330
Filing Date: 2012-04-03
Classification: B29C,B29K,B29L,B31B,B65B,B65D

Abstract:
1. A heat-sealing device for sheet packages that presses and heat seals a lid unit component onto a bag-forming film, wherein said heat-sealing device for sheet packages is characterized in that it is equipped with: a pressure heat-sealing part that presses and heat seals a lid unit component placed on a moving bag-forming film; a heat-sealing mechanism having a frame body to support the pressure heat-sealing part; a drive mechanism having a linear motor that serves as a drive source to move the heat-sealing mechanism back and forth; and a link mechanism that links the said two mechanisms; wherein the heat-sealing mechanism comprises double heat-sealing mechanisms having two units of the heat-sealing mechanism installed side by side in parallel at positions vertical to the moving direction of the bag-forming film; wherein the linear motor of the drive mechanism comprises multiple pairs of stators and a mover provided between each pair; and wherein the link mechanism comprises: the frame body of the front heat-sealing mechanism as viewed in the moving direction of the bag-forming film; a connection member that connects the mover of the drive mechanism; a rail that supports the double heat-sealing mechanisms in a slidable manner; and a rail slide member.