Title:
変形可能な管状プラスティック容器のヘッド部品を形成する成形型
Document Type and Number:
Japanese Patent JP4564752
Kind Code:
B2
Abstract:
The mould comprises a punch ( 10 ) having an outer surface ( 11 ') arranged to engage the container tubular body ( 51 ) as an exact fit, and an end portion ( 13 ) projecting axially from the lower end of the cylindrical outer surface ( 11 '), and a die ( 30 ) arranged to form, in combination with the lower surface ( 13 ') of the punch, a cavity (F) for forming the headpiece ( 52 ) of the container; the die ( 30 ) has a concave surface ( 32 ') arranged to receive as an exact fit, by axial penetration, the lower end of the cylindrical outer surface ( 11 ') of the punch together with the lower end of the tubular body ( 51 ) of the container. The headpiece ( 52 ) is formed within the forming cavity (F). According to the invention, the punch ( 10 ') comprises a radial deformation means ( 22, 25, 62, 65 ), positioned on its outer surface ( 11 ') and extending annularly along the entire circumference of this surface to act on the tubular body ( 51 ) of the container, and is arranged to assume a normal position in which its outer surface does not project radially from the cylindrical outer surface ( 11 ') of the punch, and an active position in which it is urged in a centrifugal direction in such a manner as to press the tubular body ( 51 ) against the opposing surface of the die, means being provided to urge the radial deformation means ( 22, 25, 62, 65 ) in the centrifugal direction during the forming of the container headpiece ( 52 ).
Inventors:
Bergami, stefano
Tuhua, Tueno
Tuhua, Tueno
Application Number:
JP2003554399A
Publication Date:
October 20, 2010
Filing Date:
December 05, 2002
Export Citation:
Assignee:
Sakumi Cooperate A Mekkanicichi Imola-Sochieta Co-op A. Responsabilita Limitata
International Classes:
B29C43/36; B29C31/00; B29C43/18; B29C43/42; B29C45/14; B29L23/20
Domestic Patent References:
| JP2001277305A | ||||
| JP5185492A | ||||
| JP63034112A | ||||
| JP11513945A |
Attorney, Agent or Firm:
Takao Hamano
Teruichi Hirai
Teruichi Hirai