摘要:
It is understood as being preferably intended for the manufacture of cans through spinning, molding the can bodies (1) in the most varied shapes, also enabling the attainment of deep necking or die-necking in the can bodies (1), it may be use for the several purposes, from food and beverage cans, to chemicals and others, and they may be manufactured in several materials such as tin foil, chromed sheet and black plate, using the spinning process molding the can bodies (1), being able to be used in several types of cans, from those which use metallic, plastic or mixed lids (compound plastic+metallic), clamped such as those using metallic, plastic or mixed (compound+metallic) lid system and undamped, provided with sealing gaskets and vacuum closure.
摘要:
A plurality of rolls are supported and freely shiftable on a rotating supporting shaft. The rolls have a V-groove with a circular arc at the bottom of the groove. The plurality of rolls are arranged on a swivel table so that the rotating supporting shaft corresponds to the radial direction of the swivel table. A component of force acting on the roll in the direction of the supporting shaft is alleviated by a shift of each roll in the direction of the supporting shaft. This is accomplished by rotating the swivel table with the bottom of a metal sheet tapered cylinder pushed down against the V-groove. Thus, curling on the lower end of the cylinder is accomplished without generating a bulge in the neighborhood of the lower end of the cylinder and without preforming.
摘要:
The invention relates to a container, comprising: a tubular body with at least one open end, wherein a part of the body adjacent to the end is provided with a bent body rim; a cover closing the open end having a cover rim which grips over the bent body rim; and a locking ring encircling the cover rim and the bent body rim which assures against a relative displacement of the cover in relation to the body. In order to lessen the danger of the occurrence of open contact at the end wall portions, for example be dropping, the curled body rim is additionally curled and/or the body is provided with a groove extending over at least parts of the body circumference, on which a part of the locking ring turned away form the open end of the body can support, and/or the locking ring is provided with a release element arranged in and across it.
摘要:
A method and apparatus for forming a uniformly sized flange on one end of a can body. The apparatus comprises a plurality of vertically spaced assemblies operating relative to a vertical centerline. A bottom lifter plate serves to position a can body vertically with respect to an annular die assembly. The die assembly has radially slidable segments for abutting the can body and for providing a lip about which the body edge is bent to form the flange. Spaced above the die assembly and movable vertically is a punch assembly which serves to both bend the edge about the annular lip on the die assembly and to move the die segments radially inwardly toward the vertical centerline. After the flange is formed, the lifter plate raises the can body above the top edge of the annular lip after which the die segments are opened and the can body lowered to remove it from the flanging apparatus.
摘要:
This invention relates to the production of an elongated rolled rim on a metal container in which, in a first operation, the rim of the container blank, which has previously been leveled off, is rolled over by a tool which is displaced parallel to the axis of the container and the end of the operating travel of which is determined by its distance from the plane of the outside face of the bottom of the container, and in a second operation, the rolled-over portion is pushed downwardly by a second tool whose operational engagement surface is different from the first tool and whose operating travel is also limited by its distance from the plane of the outside face of the bottom of the container, the difference between the two distances determining the height of the rolled rim of the container.
摘要:
A continuous curl formed on the periphery of a can end component prior to the first and second operations of double seaming the can end component to an end of a can body has an inner annular portion of a configuration substantially that of a surface of revolution generated by three successive merging arcs including an inner arc struck by a first radius R1, a middle arc struck by a second radius R2, and an outer arc struck by a third radius R3, where R1