Film roll supply device

Abstract

A film-roll supply device improves replacement of a film roll in a bag-making and packaging machine. A film roll replacement device supplies a first film roll to a bag-making and packaging machine. The film roll replacement device is provided with a holding section and a first driving unit. The holding section receives the first film roll to be supplied to the bag-making and packaging machine. The first driving unit changes an orientation of the holding section between a first orientation used when receiving the first film roll and a second orientation used when supplying the first film roll to the bag-making and packaging machine.

1 . A film roll supply device supplying a film roll to a bag-making and packaging machine, comprising:
 a receiver configured to receive the film roll to be supplied to the bag-making and packaging machine; and   a first driver configured to change an orientation of the receiver between a first orientation used when receiving the film roll and a second orientation used when supplying the film roll to the bag-making and packaging machine.   
     
     
         2 . The film roll supply device according to  claim 1 , wherein the first driver is configured to rotate the receiver about a rotation axis to change the orientation of the receiver, and the first rotation axis extends in a direction same as an axial direction of the film roll held by the receiver. 
     
     
         3 . The film roll supply device according to  claim 1 , further comprising a preliminary placement section on which the film roll being transferred to the receiver is preliminary placed. 
     
     
         4 . The film roll supply device according to  claim 3 , wherein the receiver is configured to allow the film roll to move from the preliminary placement section to the receiver when the receiver is in the first orientation, and to restrict the film roll from moving from the preliminary placement section to the receiver when the receiver is in the second orientation. 
     
     
         5 . The film roll supply device according to  claim 3 , wherein the preliminary placement section is configured to support the film roll at a location higher than the film roll transferred to the receiver in the first orientation. 
     
     
         6 . The film roll supply device according to  claim 3 , wherein
 the receiver has a first surface;   the preliminary placement section has a preliminary placement surface on which the film roll is configured to be preliminarily placed;   the film roll supply device is configured such that when the film roll is transferred from the preliminary placement section to the receiver in the first orientation, the film roll moves on the preliminary placement surface and the first surface; and   when the film roll moves on the preliminary placement surface and the first surface, either the preliminary placement surface and the first surface are parallel or the first surface is downwardly inclined from a proximal side toward a distal side relative to the preliminary placement section.   
     
     
         7 . The film roll supply device according to  claim 6 , wherein the receiver has a second surface and when the receiver is in the first orientation, the second surface is configured to restrict movement of the film roll that moves on the first surface from the proximal side toward the distal side relative to the preliminary placement section. 
     
     
         8 . The film roll supply device according to  claim 7 , wherein the receiver includes a first plate-shaped member having the first surface and a second plate-shaped member having the second surface; and
 when the first plate-shaped member and the second plate-shaped member are viewed from a direction parallel to the first surface and the second surface, the first surface and the second surface are disposed in a V shape.   
     
     
         9 . The film roll supply device according to  claim 7 , wherein an angle formed by the first surface and the second surface is within a range of 90°±30°. 
     
     
         10 . The film roll supply device according to  claim 7 , wherein when the receiver is in the second orientation, the first surface and the second surface support the film roll on the receiver from below.