| 摘要 |
In a method of producing a connection between the neck area of a light metal cartridge, particularly an aluminium cartridge, and a plastic container inserted therein, by a drawing process that forms a connection area and applies areas of the wall of the light metal cartridge against the plastic container using a rotating main body (15) of a drawing tool (2), said main body supporting at least one profiled drawing roller (3) which can rotate about a rotation axis (5) in order to delimit a tool working opening (1), wherein the drawing roller (3) lies against the outer surface of the light metal cartridge, the rotation axis (5) of the drawing roller (3) is arranged at a tool-internal end area of a lever (9) arranged transversely relative to the longitudinal axis (16) of the drawing tool (2), said lever being supported at its opposite tool-external end area on the drawing tool (2) so as to be pivotable about a pivot axis (11) in a force-controlled manner and so as to apply the drawing roller (3) against the outer surface of the light metal cartridge. |
| 主权项 |
1. A method of producing a connection between the neck area of a light metal cartridge and a plastic container inserted therein, by a drawing process, the method comprising:
providing a rotating main body (15) of a drawing tool (2), said main body rotating about a centrally located longitudinal axis (16), the main body supporting at least three profiled drawing rollers (3) which are each rotatable about respective rotation axes (5) in order to delimit a tool working opening (1), where each of the rotation axes (5) are parallel to, and radially spaced away from, the longitudinal axis (16) of the main body, inserting the light metal cartridge, with the plastic container disposed therein, into the tool working opening (1), pressing the drawing rollers (3) toward the centrally located longitudinal axis (16) such that each of the rotation axes (5) are biased radially toward, and remain parallel to, the longitudinal axis (16) of the main body, and such that the drawing rollers (3) are pressed against an outer surface of the light metal cartridge, wherein each of the rotation axes (5) of the respective drawing rollers (3) is arranged at a respective tool-internal end area of a respective lever (9), wherein each lever (9) extends transversely relative to the longitudinal axis (16) of the drawing tool (2), and wherein each lever (9) is supported on the drawing tool (2) at a respective opposing tool-external end area so that each lever (9) is pivotable about a pivot axis (11) in a force-controlled manner and so that each of the drawing rollers (3) is pressed against the outer surface of the light metal cartridge, and rotating the main body (15) about the centrally located longitudinal axis (16), while the drawing rollers (3) are engaged against the outer surface of the light metal cartridge, such that each of the respective rotation axes (5) rotate about, and remain parallel to, the centrally located longitudinal axis (16) while each drawing roller (3) rotates about its rotation axis (5), thereby forming a connection area and applying areas of a wall of the light metal cartridge against the plastic container using the drawing tool (2). |
