Combined injection-molding and blow-molding plant
US4197073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | May 10, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2049/023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A vertical injection-molding machine with two overlappingly operating injection molds produces two sets of eight parisons each in staggered operating cycles. Each set of parisons is transferred by a respective carrier assembly, immediately upon the opening of the respective injection mold, into the vicinity of a blow-molding unit with eight cells in which the parisons are inflated into bottles during half an injection cycle. The transfer from the closely spaced injection cavities to the blow-molding unit is performed by several carriers moving over laterally diverging tracks whereby the parisons arrive at the blow-molding unit in pockets of these carriers already separated to the extent necessary for joint introduction into the eight-cell blow mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.