Compression injection moulding method and device for preforms

B - Operations – Transporting – 29 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B29C 45/02 (2006.01) B29C 45/56 (2006.01)

Patent

CA 2714344

The invention relates to a method and a device for the compression injection moulding of preforms (10) by means of an injection moulding machine comprising one movable and one fixed tool carrier plate (2, 5) and a mould with a plurality of mould nests or cavities (60), the movable mould half (8) being designed with cores (24) and the melt being introduced into the cavities (60) on the fixed mould-half (9) side via controlled valves. The cores (24) penetrate the mould nests or cavities (60) before completion of the melt dosage to such a depth that said mould nests are at least substantially closed to the exterior. The melt is introduced into the mould nests or cavities (60) when the moulds are not completely sealed, the valves are closed and the compression pressure is produced by means of the cores (24) by the complete closure of the moulds.

La présente invention concerne un procédé et un dispositif de moulage par injection-compression de préformes (10) au moyen d'une presse d'injection comprenant une plaque porte-outil mobile (5) et une plaque porte-outil fixe (2), ainsi qu'un outil présentant plusieurs cavités de moulage (60). Le demi-moule mobile (8) présente des noyaux (24) et la matière fondue est introduite de façon dosée dans les cavités (60) du côté du demi-moule fixe (9) par des vannes commandées. Avant la fin du dosage de matière fondue, les noyaux (24) pénètrent dans les cavités de moulage (60) jusqu'à ce que les cavités de moulage soient au moins sensiblement fermées par rapport à l'extérieur. La matière fondue est introduite dans les cavités de moulage (60) de façon dosée alors que le moule n'est pas encore complètement fermé, les vannes sont fermées et la pression de compression est créée au moyen des noyaux (24), par serrage complet du moule.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Compression injection moulding method and device for preforms does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compression injection moulding method and device for preforms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compression injection moulding method and device for preforms will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1853994

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.