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1. (WO2016051373) MOLDING DEVICE FOR THERMOPLASTIC MATERIAL CONTAINERS

Pub. No.:    WO/2016/051373    International Application No.:    PCT/IB2015/057520
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Fri Oct 02 01:59:59 CEST 2015
IPC: B29C 49/48
B29C 49/56
B29C 49/06
B29C 49/36
Applicants: S.I.P.A. SOCIETA' INDUSTRIALIZZAZIONE PROGETTAZIONE E AUTOMAZIONE S.P.A.
Inventors: CAVALLINI, Franco
EUSEBIONE, Ernesto
ZOPPAS, Matteo
Title: MOLDING DEVICE FOR THERMOPLASTIC MATERIAL CONTAINERS
Abstract:
A mold (20) for rotary blowing machine for thermoplastic material containers, with half-molds (21, 22) closable as a book around an axis (A) with an opening mechanism with the shaft (15) pivoting around the axis (D) thereof parallel to the axis (A). The cranks (5, 7) are integrally fixed to the shaft (15). The shaft (16) is pivoting around the axis thereof (E) parallel to the axis (A). The cranks (6, 8) are integrally fixed to the shaft (16). The connecting rods (3, 4) are hinged at a first end thereof to the respective half-mold (21, 22) and with a second end thereof to the respective shaft (15, 16). The cam followers (17, 18) follow the cam (9) at a predetermined distance from each other so as to control the opening and the closing of the first and second half-molds (21, 22) in subsequent times to achieve the maximum symmetrical opening of the mold in asynchronous time.