Device and method for manufacturing a can body for an aerosol can
OwnerKlaus Bleiinventor
Life of this patent
Estimating the term…
Abstract
A device and method for manufacturing in one working stroke in one working direction (A) a can body with cylindrical wall and a neck section of lower diameter. The device has a drivable drawing ring used for deep-drawing of a cup from a round, disk-like blank in a first phase of the working stroke. The cup is drawn with an ironing mandrel into an ironing channel and formed into an ironed workpiece. Finally, a stretch-forming mandrel is moved out of a guide recess of the ironing mandrel and forms the neck section in a stretch-drawing phase, in conjunction with a forming depression of a domer.
Claims20
Device (10) for manufacturing a can body (11) including a neck section (13) in one working stroke, the device comprises:
- a drawing ring (26) drivable by a drawing ring drive unit (25) for deep-drawing of a cup (70) from a plate-like or disk-like blank (32),
- a punch (56) drivable by punch drive unit (55) and including an ironing mandrel (59) for forming the cup (70) into an ironed workpiece (73) with a bottom and a cylindrical wall by ironing in an ironing channel (38), and including a stretch forming mandrel (58) movable relative to the ironing mandrel (59) for stretch-forming of a bottom section (74) of the ironed workpiece (73).
Method for manufacturing a can body (11) with a neck section (13) in one working stroke, with the following steps:
- deep-drawing of a cup (70) from a plate-like blank (32) with a drawing ring (26),
- forming of the cup (70) into an ironed workpiece (73) with a bottom and a cylindrical wall by ironing in an ironing channel (38) with an ironing mandrel (59),
- stretch-forming of a bottom section (74) of the ironed workpiece (73) with a stretch-forming mandrel (58) movable relative to the ironing mandrel (59).
Dependencies are inferred from the claim text.