Method and apparatus for injecting confluent streams of...

Details Method and apparatus for injecting confluent streams of... Method and apparatus for injecting confluent streams of...

B - Operations, Transporting

29

F

18/682

B29F 1/12 (1980.01)

Patent

CA 1131866

A B S T R A C T A method and apparatus for the production of marbled articles by injecting into the injection molding die of an injection molding machine two confluent streams of plastic raw material of different hue or color which are supplied from two injection units, via separate pulsation channels which open into a common nozzle channel, just ahead of the mold cavity. The plastic raw materials flowing in the two pulsation channels are subjected to an intermittant and al- ternatingly pulsating advance by means of feed thrust pul- sation controls which generate an intermittant advance of the plastification screws of the injection units. At the junction between the two pulsation channels may be arranged a pulsation chamber with oppositely oriented material entry ports which are alternatingly closed by a reciprocating pul- sating element which moves with the pulsating plastic streams.

383574

Affiliated with

Also associated with

Rating

Method and apparatus for injecting confluent streams of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for injecting confluent streams of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for injecting confluent streams of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-600297