Injection moulding of large plastic components

Details Injection moulding of large plastic components Injection moulding of large plastic components

B - Operations, Transporting

29

C

B29C 45/02 (2006.01) B29C 45/28 (2006.01) B29C 45/46 (2006.01) B29C 45/77 (2006.01)

Patent

CA 2295122

A system for injection moulding of large plastics components in a single shot comprises an extruder and an accumulator fed from the extruder. The accumulator leads into the mould (14) via a mould valve (12) operative, when closed, to close the mould cavity substantially at the mould surface and also to close an outlet (20a) from the accumulator. The valve passage of the mould valve is of relatively large cross section, typically several centimetres or more which facilitates injection at relatively low pressures and also facilitates passage of stones and other particulate matter which may be present if the extrudate is composed of post-consumer recycled plastics.

Ce dispositif de moulage par injection de pièces de grande taille en matière plastique en une seule opération comporte une extrudeuse et un accumulateur alimenté par celle-ci. L'accumulateur débouche sur un moule (14) par le biais d'un clapet (12) servant, lorsqu'il est fermé, à clore quasiment la surface de la cavité du moule ainsi qu'à obturer un orifice de sortie (20a) partant de l'accumulateur. Le passage de clapet possède une coupe transversale relativement importante, en général de quelques centimètres, sinon plus, ce qui facilite l'injection sous des pressions relativement faibles ainsi que le passage de noyaux et d'autres matériaux particulaires présents dans l'extrudat si celui-ci est constitué de matière plastique recyclée après consommation.

Affiliated with

Also associated with

Rating

Injection moulding of large plastic components does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Injection moulding of large plastic components, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection moulding of large plastic components will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1770891