B21D51/26

PREFORM OF A CAN AND METHOD OF MANUFACTURING THE SAME
20230201908 · 2023-06-29 ·

A preform of a can includes: a dome part being concave into the bottomed cylindrical body; and an annular leg part projecting in a direction opposite to a direction in which the dome part is concave, the dome part and the annular part being molded to form the preform of the can, and an inner surface of the dome part being pressed to mold a molded can. A maximum height of the preform of the can from a ground plane to the dome part is greater than a maximum height of the molded can from a ground plane to the dome part. In a vertical cross-sectional view, a length of an inner peripheral section of the leg part connecting between a ground point of the leg part and the dome part of the preform of the can is greater than a length of a curved end molded around the dome part of the molded can.

PREFORM OF A CAN AND METHOD OF MANUFACTURING THE SAME
20230201908 · 2023-06-29 ·

A preform of a can includes: a dome part being concave into the bottomed cylindrical body; and an annular leg part projecting in a direction opposite to a direction in which the dome part is concave, the dome part and the annular part being molded to form the preform of the can, and an inner surface of the dome part being pressed to mold a molded can. A maximum height of the preform of the can from a ground plane to the dome part is greater than a maximum height of the molded can from a ground plane to the dome part. In a vertical cross-sectional view, a length of an inner peripheral section of the leg part connecting between a ground point of the leg part and the dome part of the preform of the can is greater than a length of a curved end molded around the dome part of the molded can.

Can manufacture

A method for manufacture of a metal can body is described in which two or more stretching operations are used so as to reduce the thickness of the central part of a cup base, prior to drawing the cup sidewall and forming a can body. By using two or more stretching operations, it has been found possible to control the thickness of the base without significantly reducing pressure performance of the finished can. Alternative embodiments of apparatus comprising tooling for carrying out this method are also described.

Can manufacture

A method for manufacture of a metal can body is described in which two or more stretching operations are used so as to reduce the thickness of the central part of a cup base, prior to drawing the cup sidewall and forming a can body. By using two or more stretching operations, it has been found possible to control the thickness of the base without significantly reducing pressure performance of the finished can. Alternative embodiments of apparatus comprising tooling for carrying out this method are also described.

Multiple blow molded metallic container sidewalls

A system and method of forming a metal container with a featured sidewall may include providing a blow molded metal container. The metal container may be positioned into a mold inclusive of at least one sidewall feature. The metal container may be blow molded again to cause the at least one sidewall feature to be created in the sidewall of the container as defined by the mold. In one embodiment, a sidewall of the metal container may be at least partially annealed. The sidewall feature may include a portion of a profile of a sporting good, such as a baseball, embossed feature (e.g., word), logo, or otherwise. The metal container may be a shaped metal container.

Method and Apparatus for Reforming an Inside Dome Wall Portion of a Container
20170361971 · 2017-12-21 · ·

A reform apparatus for reforming a bottom portion of a metallic beverage container is provided. The reform apparatus generally includes a pair of reform rollers interconnected to pivot arms. Spring are operably interconnected to the reform rollers such that the reform rollers a biased radially inwardly in an unactuated state. The springs at least one of spring bushings and compression springs. The reform rollers rotate radially outwardly when a wedge member pushes axially between the two pivot arms. The wedge member engages and imparts rotation to the pivot arms. An annular edge of each of the reform rollers contacts an inner wall portion of the bottom portion of the beverage container to form a groove of a predetermined size and shape.

Method and device for production of can with fold lines
09840344 · 2017-12-12 ·

A can, and device and method for producing same, includes two circular end elements forming a base and lid. The can further includes a sleeve which has fold lines forming edges, the can sleeve having a circular cross-sectional area at both ends and a polygonal-sectional area in its central region. The polygonal cross-sectional area in the central region is at most decagonal.

CAN FILLING/SEAMING DEVICE AND CAN FILLING/SEAMING METHOD
20170348757 · 2017-12-07 · ·

A can filling/seaming device that fills a can with a liquid content and seals the can with a lid by double-seaming allows a filler and a seamer to be integrated in a compact arrangement. A can filling/seaming device includes a filler that fills a can with a liquid content while conveying the can by rotation of a filling turret, a seamer that attaches a lid to the can filled with the content by double-seaming, and a forwarding turret provided between a carrying-out position of the filling turret and a carrying-in position to the seamer to circularly convey the can filled with the content, wherein a lid supply part is provided on the forwarding turret.

RAM ASSEMBLY WITH REMOVABLE PUNCH MOUNTING ASSEMBLY

An assembly includes an elongated ram body and a punch mounting assembly. The ram body has a reduced length. The punch mounting assembly includes an elongated body having a complementary length. The punch mounting assembly is coupled to the ram body. The assembled punch mounting assembly and ram body have an operational length.

RAM ASSEMBLY WITH REMOVABLE PUNCH MOUNTING ASSEMBLY

An assembly includes an elongated ram body and a punch mounting assembly. The ram body has a reduced length. The punch mounting assembly includes an elongated body having a complementary length. The punch mounting assembly is coupled to the ram body. The assembled punch mounting assembly and ram body have an operational length.