Injection molding machine

Details Injection molding machine Injection molding machine

1982-01-29

1983-10-04

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

4254512, 425590, B29F 106

Patent

active

044076495

ABSTRACT:
An injection molding machine comprises an injection piston-cylinder mechanism including therein an injection piston and a booster piston. The booster piston is provided with a longitudinal through hole through which a pressurized fluid is supplied from an external source into the piston-cylinder mechansim so as to act on the injection piston to fill the mold cavity with molten bath. When the inner pressure of the cylinder chamber between both pistons reaches a predetermined value or the injection piston reaches a predetermined position, a valve assembly which is connected to the cylinder chamber through a conduit is operated so as to drain the pressurized fluid in the cylinder chamber in a controlled manner thereby to advance the booster piston.

REFERENCES:
patent: 4274823 (1981-06-01), Stanciu

Affiliated with

Also associated with

Rating

Injection molding machine 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 molding machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molding machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-971871