According to one embodiment a necking machine is provided for containers with an open end. The necking machine may comprise a plurality of holding stations for containers and a plurality of tool stations contiguous and opposing the holding station. The tool stations being movable with respect to each other. The machine also includes an inspection device for containers that includes a light detector for detecting light in the interior of each container. The inspection device is attached to a tool station such that the inspection device shifts together with the tool station with respect to the container during the inspection of the container. Light communication of the light detector with the interior of the container being maintained during the inspection.

Two-piece metal aerosol container and method of manufacture are provided in accordance with the present invention. A rolled and longitudinally welded cylindrical tube forms the container body, including a cylindrical sidewall and reduced diameter shoulder and neck portions (formed by a sequential necking process), while a separate metal base component is attached via a crimped seam. The open-top end of the container neck portion is curled to receive a manually actuatable dispensing valve assembly. The container is resistant to internal pressures in excess of 311 psi (2150 kPa) and offers increased strength and pressure resistance (compared to a three piece rolled metal aerosol container), while being easy to manufacture and low in cost.

A metallic bottle can including a metallic base material of the bottle shape that has a mouth portion having a threaded portion, a shoulder portion, a body portion and a bottom portion, wherein, on the outer surface of said mouth portion, a finishing varnish layer is provided directly on said metallic base material, and said finishing varnish layer has an MEK extractability of 2 to 8% by mass.

A device for inhibiting rotational motion of an article to be processed comprises a pressure plate assembly including a generally ring-shaped guide assembly. The guide assembly has and at least two guide pins extending from a first side in a transverse direction. The guide assembly further includes at least two resilient devices positioned over a respective one of the at least two guide pins and a container guide having an aperture for receiving an open end of a container moving in a first direction and for aligning the open end with a processing device. The container guide is positioned adjacent to the first side of the pressure plate assembly. At least two resilient devices are configured to be compressed in response to movement of the container guide in a first direction and are configured to decompress in response to movement of the container guide in a second, generally opposite direction.

A horizontal can necking machine assembly includes a plural of main turrets and a plural of transfer starwheels. Each main turret includes a main turret shaft, a main gear mounted on the main turret shaft, a pusher assembly, and a die capable of necking a can body upon actuation of the turret shaft. Each transfer starwheel includes a transfer shaft and a transfer gear mounted on the transfer shaft. The main gears are engaged with the transfer gears such that lines through the main gear center and the centers of opposing transfer gears form an included angle of less than 170 degrees, thereby increasing the angular range available for necking the can body. The main turrets and transfer starwheels may operate to neck and move at least 2800 cans per minute, and each pusher assembly may have a stroke length relative to the die that is at least 1.5 inches.

A kind of equipment for high-speed neck forming of cans through multi-channel feeding includes a can entry station and multiple sets of neck forming stations; a can entry station comprises at least two sets of can entry channels and a loading transfer turntable; each set of can entry channel comprises a feeding turntable and a feeding transfer turntable; the feeding turntable corresponds to a loading channel setting, and the number of loading channels is the same as the number of can entry channels; several vacuum adsorption grooves are distributed on circumferential surface of the feeding turntable; several vacuum adsorption grooves are distributed on circumferential surface of the feeding transfer turntable; when the feeding turntable and the feeding transfer turntable rotate to feed, two corresponding vacuum adsorption grooves on both parties are jointly to form a circular junction; the can body enters the vacuum adsorption groove of feeding transfer turntable through the junction from the vacuum adsorption groove of feeding turntable; the loading transfer turntable is located at the rear of each feeding transfer turntable, and the feeding transfer turntable of each can entry channel feeds alternately to the loading transfer turntable. The present invention can greatly increase production speed or reduce the speed requirements of the original mechanism of the equipment, and ensure the stability of the can when entering the mold.

A drive assembly for a necker machine includes a plurality of motors, each motor including an output shaft, a plurality of drive wheel assemblies, each drive wheel assembly operatively coupled to an associated necker machine drive shaft, and a number of timing/drive belts operatively coupled to each drive wheel assembly.

A quick-change vacuum starwheel assembly including at least one of a quick-change height adjustment assembly or a quick-change vacuum starwheel mounting assembly.

A drive assembly for a necker machine includes a plurality of motors, each motor including an output shaft, a plurality of drive wheel assemblies, each drive wheel assembly operatively coupled to an associated necker machine drive shaft, and a number of timing/drive belts operatively coupled to each drive wheel assembly.

A quick-change die assembly for a necker machine includes an outer die mounting, an outer die, an outer die quick-release coupling, an inner die mounting, an inner die assembly, and an inner die quick-release coupling. The outer die is coupled to the outer die mounting by the outer die quick-release coupling. The inner die assembly is coupled to the inner die mounting by the inner die quick-release coupling.