| US 7,510,386 B2 | ||
| Apparatus for compression moulding plastic articles | ||
| Fiorenzo Parrinello, Medicina (Italy); Zeno Zuffa, Borgo Tossignano (Italy); Alessandro Balboni, Granarolo Dell'Emilia (Italy); and Dario Beltrandi, Imola (Italy) | ||
| Assigned to Sacmi Cooperativa Meccanici Imola Scieta Cooperativa, Imola (Bologna) (Italy) | ||
| Appl. No. 10/587,365 PCT Filed Jan. 31, 2005, PCT No. PCT/IB2005/000238 § 371(c)(1), (2), (4) Date Jul. 27, 2006, PCT Pub. No. WO2005/075171, PCT Pub. Date Aug. 18, 2005. |
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| Claims priority of application No. RE2004A0009 (IT), filed on Mar. 04, 2004. | ||
| Prior Publication US 2007/0187019 A1, Aug. 16, 2007 | ||
| Int. Cl. B29C 31/06 (2006.01) | ||
| U.S. Cl. 425—126.1 [425/261; 425/345; 425/438] | 10 Claims |
| 1. A plant for compression moulding plastic articles by pressure-inserting a moulding punch into a cavity (11, 12) of a die (110, 120) loaded with a charge, comprising:
a plurality of shuttles (10) each carrying at least one die part (110), a moulding apparatus (20) which is provided with a plurality of punches and, for holding shuttles (10), a corresponding plurality of seats (21) arranged to receive and release the shuttles (10), and which pressure-inserts a punch into the die cavities (11, 12) of the shuttle (10) and withdraws it to achieve a compression moulding cycle for the article, said shuttles (10) being independent of the moulding apparatus,
characterised in that
said shuttles (10) each comprise at least one circuit (15) for at least one fluid for conditioning the temperature of the article located in the die, the moulding apparatus (20) comprising, for at least one conditioning fluid, at least one feed system (25) to feed the conditioning fluid to the shuttles (10) inserted in the seats (21) of the moulding apparatus (20).
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