Bag-making and packaging machine

A bag-making and packaging machine comprising:

• a bag-making and packaging unit configured to form a sheet-like film into a tubular shape and seal the film formed into the tubular shape to thereby form the film into bags;
• a film supply unit configured to hold a first film roll into which a first film serving as the sheet-like film is wound and supply to the bag-making and packaging unit the first film drawn from the first film roll, the film supply unit including a film roll holding unit that rotatably holds the first film roll, and a frame that supports the film roll holding unit;
• a frame shaft that rotatably supports the frame;
• a splicing mechanism configured to splice together a leading end portion of the first film and a trailing end portion of a second film serving as the sheet-like film that is different from the first film;
• and
• a moving mechanism configured to rotate the frame,
• wherein the film supply unit further includes:
• a film temporary placement member on which a vicinity of the leading end portion of the first film wound into the first film roll is manually temporarily placed when attaching the first film roll to the film roll holding unit,
• a rotating mechanism that rotates the first film roll held by the film roll holding unit,
• a leading end portion detection sensor configured to detect that the leading end portion of the first film is positioned in a prescribed position, and
• a control unit configured to control the rotating mechanism, the control unit configured to, after the vicinity of the leading end portion of the first film has been temporarily placed on the film temporary placement member, cause the rotating mechanism to rotate the first film roll to thereby convey the first film along a predetermined conveyance path until the leading end portion detection sensor detects that the leading end portion of the first film is positioned in the prescribed position, and
• the moving mechanism is further configured to, after conveyance of the leading end portion of the first film to the prescribed position, rotate the frame to thereby rotate the film roll holding unit around the frame shaft and move the leading end portion of the first film to a splicing position where the leading end portion of the first film is spliced to the trailing end portion of the second film by the splicing mechanism.