Patent ID: 8539740

Claim:
A filling and packaging machine for producing a package including contents held in a film while feeding the film from upward to downward, comprising: a supply pipe for supplying contents into the film formed in a tubular shape; a film feed mechanism for feeding the film from upward to downward, and a horizontal seal mechanism placed below the supply pipe in order to seal in contents supplied into the film, wherein the horizontal seal mechanism includes: a pair of seal bars adapted to be movable in the opposite direction to pressurize the film from sides in order to heat-seal the film; a pair of film holders placed between the supply pipe and the seal bars in the vertical direction to open or close to sandwich the film from the sides; and a pair of cooling bars adapted to be movable in the opposite direction to pressurize the film from the sides in order to cool a portion of the film heat-sealed by the seal bars, wherein each of the cooling bars is supported by an upper portion of a support member placed below the seal bars, extending in the vertical direction and being supported by a slider which moves in a direction in which the sliders are opposite to each other and in the vertical direction, wherein the seal bars are configured to repeat opening and closing at a reference position without moving in the vertical direction, and the cooling bars are configured to move upward to the reference position to sandwich the film between the opened seal bars at the reference position, wherein the seal bars and the film holders are supported by a first frame structure adapted to be position-adjustable in the vertical direction such that the seal bars and the film holders are movable opposite independently, wherein the film feed mechanism includes a pair of squeeze rollers placed between the supply pipe and the horizontal seal mechanism in a direction of the feeding of the film and squeezing the film from the sides thereof and rotating at the same time to form a flat portion in the film, and wherein the pair of seal bars are adapted to be movable in the vertical direction to change a distance from the pair of squeeze rollers to the pair of seal bars in the vertical direction depending on a size of the package, and a movement range of the pair of cooling bars in the vertical direction is shifted by a value equal to a changed value of the position of the pair of seal bars in the vertical direction.