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.

An apparatus for producing an object from a polymeric material having a melting temperature comprises: a melting device for melting the polymeric material, a heat exchanger for cooling the polymeric material melted by the melting device below the melting temperature, a mould arranged downstream of the heat exchanger for forming the object from the polymeric material, while the polymeric material has a temperature lower than said melting temperature, a heat recovery device associated with the heat exchanger, the heat recovery device being configured to recover at least part of the heat released by the polymeric material to the heat exchanger.

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.

A mould for the production of closures with tear-off membrane in a compression moulding machine, includes: 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.

An apparatus for molding articles includes a first mold carrier configured to angularly displace relative to a fixed structure from a first molding position to first accessing position and a second mold carrier traveling with the first mold carrier and configured to angularly displace relative to the first mold carrier from a second molding position to a second accessing position. The first mold carrier may be pivotably coupled to the fixed structure; the second mold carrier may be slidably and rotatably coupled to the first mold carrier. A third mold carrier may be provided, and the second mold carrier may be located between the first and third mold carriers. An articulation mechanism may be provided to control relative motion of the second mold carrier relative to the first mold carrier as the first mold carrier pivots relative to the fixed structure. A method for molding articles is also provided.

A mould for the production of closures with tear-off membrane in a compression moulding machine, includes: 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.