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US 8,728,381 B2Granted
Injection moulding of plastics articles
OwnerConstantinos Siderisinventor
Life of this patent
Estimating the term…
Abstract
An injection moulding apparatus includes an openable mould (1, 3) having a plurality of cavities for injection moulding articles (6), and, disposed below the mould cavities, a plurality of post cooling cavities (13) into which in use released injection moulded articles (6) may pass at least partially under gravity when released from the mould cavities.
Claims14
An injection moulding apparatus comprising:
- an openable mould having a plurality of cavities and a plurality of mould cores extending generally horizontally, for injection moulding articles having a generally horizontal orientation,
- a plurality of substantially vertically directed post cooling cavities, disposed below said mould cavities and into which in use released injection moulded articles may pass at least partially under gravity when released from said mould cavities and ejected from said mould cores, and
- an array of chutes having upper ends to receive respective moulded articles released from said mould cavities, and lower ends to discharge the articles into selected post-cooling cavities,
- wherein, in use, said chutes receive said injection moulded articles upon release from said mould cores and change the alignment of each injection moulded article to a generally vertical orientation to pass into a respective post-cooling cavity, and
- wherein said mould cavities are arranged in rows and said array of chutes is stepped so that the upper ends thereof are in substantially the same relative orientation to each of the respective mould cavities.
2 more elements
A method of injection moulding comprising:
- providing an openable injection mould having a plurality of cavities and a plurality of mould cores extending substantially horizontally, for injection moulding articles for injection moulding articles having a substantially horizontal orientation, the cavities being arranged in rows;
- providing an array of chutes having upper ends positionable to receive respective articles released from said mould cavities and lower ends positionable to discharge the articles, said upper ends being stepped so that they are in substantially the same relative orientation to each of the respective mould cavities;
- moulding a plurality of articles in said cavities;
- opening said mould to release said injection moulded articles on said mould cores,
- ejecting said injection moulded articles from said mould cores,
- allowing said ejected injection moulded articles to pass at least partially under gravity into respective, substantially vertical post cooling cavities disposed generally below said mould,
- wherein, each ejected moulded article falls into a respective chute that changes an alignment of each injection moulded article into a substantially vertical orientation to pass into a respective post-cooling cavity.
4 more elements
Dependencies are inferred from the claim text.