Abstract:
A multiple-punch press (1) is disclosed for forming crown caps from sheets of metal, wherein a closed-loop conveyor (10), which is controlled by an electric motor (21) to move in an indexed manner, has gripping members (12) that take a sheet and supply the sheet (2) to a punching unit (11) that comprises two rows of punches that are parallel and staggered in relation to one another and opens and closes cyclically, controlled by another motor (22), shearing the sheet and forming at each blow two rows of caps.
Abstract:
A vacuum system (300) for a press system (200) is provided. The press system includes a die assembly (310), a supply assembly (320), and a transfer assembly (340). The vacuum system includes an airflow generator (201) and a duct assembly (202). The duct assembly includes a primary duct (210) that includes a coupling segment (212) coupled to and in fluid communication with the airflow generator. The duct assembly further includes a plurality of branch assemblies (220,240,260,280), each including a first portion (222,242,262,282) extending from and being in fluid communication with the primary duct, and a second portion (224,244,264,284) structured to be in fluid communication with a corresponding portion of said press system. The vacuum system further includes a number of baffle assemblies (203,204) for controlling the airflow, each baffle assembly being disposed on one of the branch assemblies.
Abstract:
A plant (1) for manufacturing and printing cup-shaped bodies, comprising an apparatus (2) for manufacturing cup-shaped bodies (10) that comprise at least one portion made of plastics, a device for positioning the cup-shaped bodies (10) manufactured by the apparatus (2) on a transfer device (3) that can move along a longitudinal transfer direction (100), the cup-shaped bodies ( 10) resting with their lower edge ( 10b) on a resting surface (3a) that is defined by the transfer device (3) with its concavity directed toward the resting surface (3a); the plant (1) comprises, along the extension of the longitudinal transfer direction (100), a device (20) for the digital printing of the cup-shaped bodies ( 10), means being provided for controlling the position of the top edge ( 10a) of the cup-shaped bodies (10) on the resting surface (3a), the control means being connected functionally to the digital printing device (20).
Abstract:
A shell, a container employing the shell, and tooling and associated methods for forming the shell are provided. The shell includes a center panel, a circumferential chuck wall, an annular countersink between the center panel and the circumferential chuck wall, and a curl extending radially outwardly from the chuck wall. The material of at least one predetermined portion of the shell is selectively stretched relative to at least one other portion of the shell, thereby providing a corresponding thinned portion.
Abstract:
There is disclosed herein a can end (10) for a can for pressurized contents, the can end being configured to be joined by a peripheral annular joining portion (24,26) to one axial end of a can body of the can and having an outer side arranged to face outwardly from the can and an inner side arranged to face inwardly into the can, the can end comprising: a central panel (18); a panel wall (20) annularly surrounding the central panel and extending axially inwardly and radially outwardly from the central panel; an annular chuck wall structure (12, 14, 50) extending radially- and axially-inwardly from the joining portion; and an annular bead (16) which is connected between a radially outer edge (38) of the panel wall and a radially inner edge (50e) of the chuck wall structure and which is concave with respect to the outer side of the can end and extends at least partially radially outwardly with respect to the radially inner edge of the chuck wall structure, wherein wall portions adjacent inner and outer ends of the concave annular bead (16) form a bead mouth (m) that is open towards the outer side of the can end.
Abstract:
A device (17) for separating discs (10) of metal from a stack of discs held in an infeed (16, 23) to a machine such as a cupping press or other machinery used in can manufacture. In one embodiment a separator ring (17) includes four segments (20) on its inner surface. The segments have a central aperture through which the lowermost disc of the stack is extracted by suction (12), the disc forming a four-leaf clover shape as it is pulled between the four segments.
Abstract:
La máquina se caracteriza porque comprende una plataforma superior (51) como mesa de trabajo provista en su parte central de un disco rotativo (1) porta-tapas de giro intermitente y provisto de varias ventanas radiales (61) donde se alojan respectivas tapas (56), disponiéndose alrededor del disco rotativo (1) y situadas con un desfase angular de 90º entre ellas cuatro estaciones de trabajo simétricas y complementarias que incluyen: Un dispositivo (2) alimentador de tapas, un dispositivo de rebordeado (3), un dispositivo de engomado (4) y un dispositivo de evacuación (5) de las citadas tapas (56). Comprende además unos característicos medios detransmisión de movimientos sincronizados para realizar distintas operaciones sobre las tapas (56).
Abstract:
An apparatus for forming can ends or closure blanks. The apparatus comprises an upper tool (10) for pressing a sheet of metal against a lower tool (20). The lower tool (20) is a cut edge tool, which has raised shear points (22) for cutting a blank of metal out of the sheet. The apparatus further comprises one or more sensors (25), each of which is axially aligned with a shear point (22) and monitors the force applied to the metal at those points (22).
Abstract:
A method of embossing a crown cap comprises the steps of : detecting a pre-printed drawing on the bottom of the crown cap, varying the angular positioning of the crown cap so as to position the drawing according to a preset positioning, and impressing a raised/recessed pictogram on the bottom of the crown cap. The pre-printed drawing and the embossed pictogram will have a desired reciprocal position.
Abstract:
A double action tooling press apparatus (100) for forming a beverage can lid has a longitudinal axis, an inner tooling assembly, and an outer tooling assembly. The inner tooling assembly is positioned about the longitudinal axis and has a downwardly extending stem (211). The stem (211) has an upper segment or riser (211a) having a free end and a separate lower segment (211b) having a proximal end. The proximal end is in operative communication with, but is not joined to, the lower free end of the upper segment (211a). An opposing distal end is joined to a punch core tool (214). The outer tooling assembly is positioned about the longitudinal axis and has a passageway (306) through which a portion of the stem (211) passes, a chamber (320) in which the proximal end of the lower segment (211b) of the stem resides and traverses upwardly and downwardly therein, a biasing spring (324) within the chamber (320) for biasing the lower segment (211b) of the stem (211) in an upward position, and a circumferential tooling assembly. The circumferential tooling assembly has a first tool (328) having an annular contacting surface and a void defined by an elongated circumferential sidewall, an upper pressure sleeve located radially inwardly of the annular contacting surface of a blank punch and within the void defined by the inner surface of the elongated circumferential sidewall of the blank punch, and a second tool (336) within the upper pressure sleeve and encircling the punch core tool (214).