Abstract: A packaging system including two rotary tables (5, 6) provided adjacent each other on a common base (1) and connected to a common drive source to intermittently rotate in mutually opposite directions in the same intermittent indexing mode. For the rotary tables (5, 6), empty bag supplying devices (10, 11), mouth-opening devices (14, 15), packaged material filling devices (16, 17), mouth-sealing devices (22, 23), and product bag unloading devices (8, 9) are respectively provided on the base (1). The product bag unloading devices (8, 9) are disposed adjacent each other in the vicinity of the most proximate stop positions (H, h) of the tables, and the empty bag supplying devices (10,11) are disposed adjacent each other in the vicinity of the following stop positions (A, a).

Abstract: A duplex-type product bag unloading apparatus including two downwardly opening and closing chucks and a chuck-moving mechanism for reciprocating the chucks between positions for receiving and discharging product bags. The relative positions of the two chucks are changed as they are moved from the receiving position to the discharging position by the chuck-moving mechanism, so that in the receiving position, the chucks are arranged in a single row in the bag width direction of the grasped product bags, and in the discharging position, the chucks are in a single row in the thickness direction of the grasped product bags. The chuck-moving mechanism is comprised of a pivot arm and a chuck-supporting frame rotatably mounted to the pivot arm, and the two chucks are rotatably mounted on both sides of the chuck-supporting frame. The chuck-supporting frame and the chucks rotate in synchronism with the pivotal motion of the pivot arm.

Abstract: A bag-making and packaging machine including first through third transportation devices provided between a positioning conveyor that positions bags fed out from a horizontal-type bag-making machine and a supply conveyor that supplies the bags to a conveyor magazine-type bag-supply apparatus of a packaging machine, wherein the first transportation device suctions and raises the bags from the positioning conveyor and changes them into a vertical attitude with the bag mouth portions facing downward, the second transportation device takes the bags held by the first transportation devices by gripping them with the gripping members, horizontally transports them to a prescribed position while rotating them, and then the third transportation device suctions and takes up the bags from the second transportation device, changes them to a horizontal attitude with the bag mouth portions facing in the bag feed direction and then places them on the supply conveyor.

Abstract: A duplex-type product bag unloading apparatus including two downwardly opening and closing chucks and a chuck-moving mechanism for reciprocating the chucks between positions for receiving and discharging product bags. The relative positions of the two chucks are changed as they are moved from the receiving position to the discharging position by the chuck-moving mechanism, so that in the receiving position, the chucks are arranged in a single row in the bag width direction of the grasped product bags, and in the discharging position, the chucks are in a single row in the thickness direction of the grasped product bags. The chuck-moving mechanism is comprised of a pivot arm and a chuck-supporting frame rotatably mounted to the pivot arm, and the two chucks are rotatably mounted on both sides of the chuck-supporting frame. The chuck-supporting frame and the chucks rotate in synchronism with the pivotal motion of the pivot arm.

Abstract: A bag supply apparatus for supplying bags onto a conveyer for transporting a bag bundle stacked such that an upper level bag is shifted forward, including a bag lifting device, which is provided with a pair of bag support members disposed facing one another on the left and right sides near the rear edge of a belt conveyor, and a rotation mechanism, which imparts translational motion of rotation in symmetric in a vertical plane with respect to the conveyance direction of the belt conveyor. The bag supporting portions of the bag support members contact the bag bundle from below to lift up the rear edge portion of the bag bundle and then separated from the bag bundle outwardly. While the bag supporting portions thus lifting the bag bundle, a new bag is fed into the space between the conveyance surface of the belt conveyor and the bag bundle.

Abstract: A bag-making and packaging machine including first through third transportation devices provided between a positioning conveyor that positions bags fed out from a horizontal-type bag-making machine and a supply conveyor that supplies the bags to a conveyor magazine-type bag-supply apparatus of a packaging machine, wherein the first transportation device suctions and raises the bags from the positioning conveyor and changes them into a vertical attitude with the bag mouth portions facing downward, the second transportation device takes the bags held by the first transportation devices by gripping them with the gripping members, horizontally transports them to a prescribed position while rotating them, and then the third transportation device suctions and takes up the bags from the second transportation device, changes them to a horizontal attitude with the bag mouth portions facing in the bag feed direction and then places them on the supply conveyor.

Abstract: A bag supply apparatus for supplying bags onto a conveyer for transporting a bag bundle stacked such that an upper level bag is shifted forward, including a bag lifting device, which is provided with a pair of bag support members disposed facing one another on the left and right sides near the rear edge of a belt conveyor, and a rotation mechanism, which imparts translational motion of rotation in symmetric in a vertical plane with respect to the conveyance direction of the belt conveyor. The bag supporting portions of the bag support members contact the bag bundle from below to lift up the rear edge portion of the bag bundle and then separated from the bag bundle outwardly. While the bag supporting portions thus lifting the bag bundle, a new bag is fed into the space between the conveyance surface of the belt conveyor and the bag bundle.

Abstract: A packaging bag with a zipper having a pair of male and female zipper elements is gripped at the laterally opposite side edges thereof with a pair of grippers. A pair of suction-adhering members are disposed at both sides of the packaging bag and actuated to adhere to the respective outsides of the male and female zipper elements of the bag. In this state, the suction-adhering members are moved away from each other, thereby disengaging the male and female zipper elements from each other. At this step, the suction-adhering member adhering to the outside of the male zipper element is pivoted to displace the suction-adhering portion thereof toward the mouth of the bag, thereby pulling the male zipper element obliquely upward.

Abstract: A conveying apparatus for spouts or bags with spouts thereon, including: a circular rotating body which is driven rotationally, a guide rail disposed around the circumference of the rotating body with a predetermined spacing in between, and a plurality of grippers disposed on the rotating body and rotated with the rotating body. The rotating body has an outer circumferential edge that supports the flanges of the spouts, and the guide rail has on its inner edge an arc-shaped guide portion that also supports the flanges of the spouts. During the rotation of the rotating body, the grippers close to hold the spouts at the flanges and then opens to release the spouts. A rotational force is imparted by the rotating body to the spouts while spouts are held at the flanges by the grippers.

Abstract: A bag-making and packaging machine including a bag-making apparatus 1, a bag-filling (packaging) apparatus 2, and a bag transfer apparatus. The bag-making apparatus 1 of a bag-making and packaging machine, while releasing a film F from a film roll disposed in the horizontal direction and feeding the film lengthwise, folds and overlaps the film in two in a horizontal attitude, performs sealing in locations corresponding to the bag bottom portions and side portions of the film in the horizontal attitude, and separates bags by cutting. The line corresponding to the bag bottom ends of the folded and overlapped film F (this position indicated by S) is set in the same position regardless of the bag length, and the respective apparatuses such as the forming apparatus 5, sealing apparatuses 8, 9 and 11, and cutting apparatus 14, etc. are disposed with reference to this position.

Abstract: A bag-making and packaging machine including a bag-making apparatus 1, a bag-filling (packaging) apparatus 2, and a bag transfer apparatus. The bag-making apparatus 1 of a bag-making and packaging machine, while releasing a film F from a film roll disposed in the horizontal direction and feeding the film lengthwise, folds and overlaps the film in two in a horizontal attitude, performs sealing in locations corresponding to the bag bottom portions and side portions of the film in the horizontal attitude, and separates bags by cutting. The line corresponding to the bag bottom ends of the folded and overlapped film F (this position indicated by S) is set in the same position regardless of the bag length, and the respective apparatuses such as the forming apparatus 5, sealing apparatuses 8, 9 and 11, and cutting apparatus 14, etc. are disposed with reference to this position.

Abstract: A conveying apparatus for spouts or bags with spouts thereon, including: a circular rotating body which is driven rotationally, a guide rail disposed around the circumference of the rotating body with a predetermined spacing in between, and a plurality of grippers disposed on the rotating body and rotated with the rotating body. The rotating body has an outer circumferential edge that supports the flanges of the spouts, and the guide rail has on its inner edge an arc-shaped guide portion that also supports the flanges of the spouts. During the rotation of the rotating body, the grippers close to hold the spouts at the flanges and then opens to release the spouts. A rotational force is imparted by the rotating body to the spouts while spouts are held at the flanges by the grippers.