Abstract: A can lid inspection device includes an illuminator to illuminate a can lid. A camera includes a lens holding cylinder. A pedestal base includes a circular inspection hole formed at a center. The pedestal base mounts the camera to position the lens holding cylinder. A support pole includes a lower end to fix the illuminator and an upper portion supporting the pedestal base. A camera positioning jig includes a ring-shaped body. A flange portion protrudes from an outer peripheral surface of the ring-shaped body. An outer diameter portion of the ring-shaped body fits in the inspection hole. The inner diameter portion of the ring-shaped body fits the lens holding cylinder. An illumination center calibration jig detachably mounts on a lower surface of the illuminator and has a mark indicating a center of the illuminator. An analysis device analyzes an image of the can lid captured by the camera.

Abstract: A can body printing system includes: a host device 10; and a printing device 30 configured to print an image acquired from the host device 10 onto can bodies. The print image information acquisition section 301 of the printing device 30 acquires, from the host device 10, image information to which an authorization for printing on can bodies is added. The activation control section 305 of the printing device 30 prints an image based on the image information onto can bodies on the basis of the authorization for printing on can bodies added to the acquired image information.

Abstract: A can body printing system includes: a status detection section 305 configured to, when printing is performed on a can body by a user, detect satisfaction of a condition for the printing set by a third party that is not the user; and a print stopping section 306 configured to control a stoppage of the printing on the can body in response to detection of the satisfaction of the condition for the printing set by the third party that is not the user.

Abstract: A printing apparatus is provided with: a support member supporting a can body; a movement route in which the support member moves, the movement route being formed into an annular shape and partially including a linear part, which is a linear-shaped movement route; and plural inkjet heads forming an image onto the can body supported by the support member positioned at the linear part. Thus, it is possible to suppress degradation of image quality that may happen in the case of forming a movement route of can bodies into an annular shape when an image is to be formed on a can body by use of the plural inkjet heads.

Abstract: A print system includes: a moving body supporting a can body and moving; an upper moving route extending in a lateral direction, which is taken by the moving body when moving in one direction; a lower moving route positioned below the upper moving route, which extends in the lateral direction and is taken by the moving body when moving in a direction opposite to the one direction; and an image forming unit performing image formation onto the can body supported by the moving body. In comparison between the orientation of the moving body while the moving body is positioned on the upper moving route and the orientation of the moving body while the moving body is positioned on the lower moving route, the moving body is turned upside down.

Abstract: While deterioration in processing efficiency caused by printing devices with slow printing speed is suppressed, facilities necessary to manufacture can bodies are able to be shared. A can body manufacturing system includes: a can body conveyance route, by which can bodies are conveyed, provided to branch halfway and thereafter merge again, the can body conveyance route at least including a first branching conveyance route and a second branching conveyance route; a first printing device performing printing on can bodies conveyed by the first branching conveyance route; and a second printing device performing printing on can bodies conveyed by the second branching conveyance route, the number of can bodies on which printing is performed by the second printing device per unit time being different from the number of can bodies on which printing is performed by the first printing device per unit time.

Abstract: An upstream-side guidance part 400 is provided with plural upstream-side guidance members 410 guiding disc-shaped members 300. A downstream-side guidance part 500 is provided with plural downstream-side guidance members 510 guiding the disc-shaped members 300. The positions of the upstream-side guidance members 410 in the circumferential direction of the disc-shaped member 300 are different from the positions of the downstream-side guidance members 510 in the circumferential direction of the disc-shaped member 300, and at least one of the upstream-side guidance part 400 and the downstream-side guidance part 500 is able to move forward and backward with respect to the other.

Abstract: A printing apparatus (500) is provided with a moving unit (550) used to convey a can body (10). In addition, the printing apparatus (500) is provided with a first linear unit (610) in a linear shape which the moving unit (550) travels to move in one direction. Moreover, the printing apparatus (500) is provided with a second linear unit (620) which the moving unit (550) travels to move in a direction opposite to the one direction, the second linear unit (620) being arranged in parallel with the first linear unit (610) and formed linearly. Further, the printing apparatus (500) is provided with a printing unit (520) that performs printing on the can body (10) held by the moving unit (550). By these units, the miniaturization of a printing apparatus and a can body manufacturing system is attained.

Abstract: A printing apparatus is provided with a moving body moving while holding a can body; an image forming unit forming an image on the can body on the moving body stopped at a predetermined stop location; and a pressed part installed at the stop location, at least one of a portion of the moving body stopped at the stop location and a portion of the can body held by the moving body being pressed against the pressed part. Thus, positioning precision of the can body in stopping the can body and performing image formation onto the can body is increased.

Abstract: Provided is a print system including: a moving body supporting a can body and moving; an annular moving route that is an annular-shaped moving route, along which the moving body moves, including at least one of a linear moving route extending from an upper side toward a lower side and is formed linearly, and a linear moving route extending from the lower side toward the upper side and is formed linearly; and an image forming unit performing image formation onto the can body supported by the moving body.

Abstract: A can lid inspection device includes an illuminator to illuminate a can lid. A camera includes a lens holding cylinder. A pedestal base includes a circular inspection hole formed at a center. The pedestal base mounts the camera to position the lens holding cylinder. A support pole includes a lower end to fix the illuminator and an upper portion supporting the pedestal base. A camera positioning jig includes a ring-shaped body. A flange portion protrudes from an outer peripheral surface of the ring-shaped body. An outer diameter portion of the ring-shaped body fits in the inspection hole. The inner diameter portion of the ring-shaped body fits the lens holding cylinder. An illumination center calibration jig detachably mounts on a lower surface of the illuminator and has a mark indicating a center of the illuminator. An analysis device analyzes an image of the can lid captured by the camera.

Abstract: While deterioration in processing efficiency caused by printing devices with slow printing speed is suppressed, facilities necessary to manufacture can bodies are able to be shared. A can body manufacturing system includes: a can body conveyance route, by which can bodies are conveyed, provided to branch halfway and thereafter merge again, the can body conveyance route at least including a first branching conveyance route and a second branching conveyance route; a first printing device performing printing on can bodies conveyed by the first branching conveyance route; and a second printing device performing printing on can bodies conveyed by the second branching conveyance route, the number of can bodies on which printing is performed by the second printing device per unit time being different from the number of can bodies on which printing is performed by the first printing device per unit time.

Abstract: A beverage use can includes a cylindrical can main body. The can main body includes a round opening at its upper portion. The can main body further includes a bottom at its lower portion. The can main body further includes an outer circumferential surface. Inkjet printing is performed over the entire outer circumferential surface of the can main body to form inkjet-printed images thereon. Then, plate printing is performed on these inkjet-printed images to form thereon images including characters. This improves quality of images formed on an outer circumferential surface of a beverage use can.

Abstract: An image is formed on a can body by use of plural image formation units. A printing device (500) is provided with a moving unit (550) that moves while supporting can bodies (10). Additionally, the printing device (500) is provided with a printing unit (520) that includes plural inkjet heads (11W), (11C), (11M), (11Y), (11K) and that performs printing on the can bodies (10) supported by the moving unit (550). Further, the printing device (500) is provided with a moving mechanism (560) that causes the moving unit (550) to move by using a linear mechanism.

Abstract: A printing apparatus is provided with: a support member supporting a can body; a movement route in which the support member moves, the movement route being formed into an annular shape and partially including a linear part, which is a linear-shaped movement route; and plural inkjet heads forming an image onto the can body supported by the support member positioned at the linear part. Thus, it is possible to suppress degradation of image quality that may happen in the case of forming a movement route of can bodies into an annular shape when an image is to be formed on a can body by use of the plural inkjet heads.

Abstract: An upstream-side guidance part 400 is provided with plural upstream-side guidance members 410 guiding disc-shaped members 300. A downstream-side guidance part 500 is provided with plural downstream-side guidance members 510 guiding the disc-shaped members 300. The positions of the upstream-side guidance members 410 in the circumferential direction of the disc-shaped member 300 are different from the positions of the downstream-side guidance members 510 in the circumferential direction of the disc-shaped member 300, and at least one of the upstream-side guidance part 400 and the downstream-side guidance part 500 is able to move forward and backward with respect to the other.

Abstract: A printing apparatus is provided with a moving body moving while holding a can body; an image forming unit forming an image on the can body on the moving body stopped at a predetermined stop location; and a pressed part installed at the stop location, at least one of a portion of the moving body stopped at the stop location and a portion of the can body held by the moving body being pressed against the pressed part. Thus, positioning precision of the can body in stopping the can body and performing image formation onto the can body is increased.

Abstract: A first score line (430) is curled inward at one end section (431) and the other end section (432) of the first score line (430) so as to go into a region enclosed by the first score line (430), and the first score line (430) approaches a center line (CL) of a tab as going to the trailing ends thereof. In addition, a curvature at which the first scored line (430) is brought closer to the other end section (432) side is applied to the one end section (431) of the first score line (430), and a curvature at which the first score line (430) is brought closer to the one end section (431) side is also applied to the other end section (432) of the first score line (430).

Abstract: A plate cylinder enables a printing plate to be attached thereto and is improved in strength. A plate cylinder is attached to a rotationally driven plate driving shaft, and is configured to mount a cylindrical printing plate attached thereon from a tip end side thereof. The plate cylinder is provided with a plate cylinder main body having a plate mounting surface to which the printing plate is attached. A flat portion is formed on a flat surface positioned further toward a radially inner side than the plate mounting surface. A plurality of hole portions is formed side by side in an axially separated state in the flat portion. A plurality of plate fixing members tightly fixes the printing plate to the plate mounting surface. The plate fixing members are fitted into the hole portions, and are provided to be movable in radially inward and outward directions of the plate cylinder.

Abstract: A stopper for assuredly preventing shifting of a cylindrical printing plate mounted on a plate cylinder is provided. A plate cylinder 1 has a plate-mounting surface 12 on which a cylindrical printing plate 3 is fitted from the front end side and mounted. A front stopper 4 is provided on the end portion of the front end side. The front stopper 4 is configured so as to be able to switch between a protruding orientation in which at least a portion of the stopper is positioned so as to protrude to the outside of the plate-mounting surface 12 in the radial direction and a retracted orientation in which the entire stopper is positioned to the inside of the plate-mounting surface 12 in the radial direction.