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公开(公告)号：US11433570B2
公开(公告)日：2022-09-06
申请号：US17347818
申请日：2021-06-15
Inventor： Piero Maretti , Stefano Bergami , Davide Penazzi
Abstract: A pre-assembled female mould arrangement for being installed on a moulding machine, the pre-assembled female mould arrangement comprising: an annular forming element, extending about an axis and delimiting a forming cavity about said axis; a plate element, which delimits the forming cavity transversely to said axis; a peripheral annular component that surrounds at least partially the annular forming element; a supporting base; a fastening element which is so mounted as to render the annular forming element fixed relative to the plate element.
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公开(公告)号：US11904511B2
公开(公告)日：2024-02-20
申请号：US17754236
申请日：2020-10-01
Inventor： Piero Maretti , Davide Penazzi
CPC classification number: B29C43/361 , B29C43/08 , B29C43/50 , B29C43/52 , B29C43/58 , B29C2043/3676 , B29C2043/5053 , B29L2031/565
Abstract: A mould for the production of closures with tear-off membrane in a compression moulding machine, comprises: a male die element including a first abutment surface and a female die element movable relative to each other along a moulding orientation. The mould is positionable between a closed configuration, in which the male die element and the female die element are in contact with each other, and an open configuration, in which the male die element and the female die element are spaced apart. The female die element includes: a first block, a second block and a third block, aligned with each other and movable along the moulding orientation; a first spring, interposed between the first block and the second block; a second spring, interposed between the second block and the third block and configured to apply an opening force along the moulding orientation. The first spring is configured to apply a closing force along the moulding orientation to keep the second block and the first block in contact with each other when no other forces are applied.
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公开(公告)号：US11065784B2
公开(公告)日：2021-07-20
申请号：US16085171
申请日：2017-03-15
Inventor： Piero Maretti , Stefano Bergami , Davide Penazzi
Abstract: A method for assembling a female mould on a moulding machine, comprises the steps of: providing a pre-assembled female mould arrangement, the pre-assembled female mould arrangement comprising a plurality of components including at least a base, a forming device having a forming cavity and a fastening element which renders the forming device fixed relative to the base; placing the pre-assembled female mould arrangement on a support of the moulding machine; fixing the pre-assembled female mould arrangement to the support.
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