Heat-sealing device for sheet packages

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.