Abstract: A bag abnormality detection device includes a synchronous sensor, a first bag detection sensor, a second bag detection sensor and a controller. When the synchronous sensor detects a change, at a first detection point, from a state in which the bag is absent to a state in which the bag is present and the detection result of the first bag detection sensor indicates that the bag does not exist at a second detection point, the controller recognizes that the bag has an abnormality. When the synchronous sensor detects a change, at the first detection point, from a state in which the bag is present to a state in which the bag is absent and the detection result of the second bag detection sensor indicates that the bag does not exist at a third detection point, the controller recognizes that the bag has an abnormality.

Abstract: A bag abnormality detection device includes a synchronous sensor, a first bag detection sensor, a second bag detection sensor and a controller. When the synchronous sensor detects a change, at a first detection point, from a state in which the bag is absent to a state in which the bag is present and the detection result of the first bag detection sensor indicates that the bag does not exist at a second detection point, the controller recognizes that the bag has an abnormality. When the synchronous sensor detects a change, at the first detection point, from a state in which the bag is present to a state in which the bag is absent and the detection result of the second bag detection sensor indicates that the bag does not exist at a third detection point, the controller recognizes that the bag has an abnormality.

Abstract: A method of sealing an opening portion of a packaging container by utilizing fusion bonding of the base material, together with an apparatus and method for inspecting the sealed portion. The container material has a welding layer as the innermost layer. The welding layer is melted at a seal portion defined along the edge of the opening portion of the container. A part of the melt from the welding layer is allowed to flow out from the edge of the opening portion, thereby sealing the seal portion and also forming an efflux layer outside the opening portion by the melt flowing out and solidified. An image of at least a part of the sealed portion and its vicinities is taken. At least a part of the image is defined as an inspection region. The image of the inspection region is subjected to predetermined image processing to calculate data concerning the efflux layer formed outside the sealed portion.

Abstract: A method of sealing an opening portion of a packaging container by utilizing fusion bonding of the base material, together with an apparatus and method for inspecting the sealed portion. The container material has a welding layer as the innermost layer. The welding layer is melted at a seal portion defined along the edge of the opening portion of the container. A part of the melt from the welding layer is allowed to flow out from the edge of the opening portion, thereby sealing the seal portion and also forming an efflux layer outside the opening portion by the melt flowing out and solidified. An image of at least a part of the sealed portion and its vicinities is taken. At least a part of the image is defined as an inspection region. The image of the inspection region is subjected to predetermined image processing to calculate data concerning the efflux layer formed outside the sealed portion.