Open loop pressure control for injection molding

Details Open loop pressure control for injection molding Open loop pressure control for injection molding

B - Operations, Transporting

29

C

B29C 45/18 (2006.01) B29C 45/20 (2006.01) B29C 45/77 (2006.01)

Patent

CA 2591730

An injection molding system is disclosed having a self-regulating valve for balancing melt flow. The self-regulating valve includes a control rod configured to balance the melt flow rate through a hot runner system. The self-regulating valve reacts to an injection or melt pressure within the hot runner system and a pre-set force provided by an external force device. The self-regulating valve is an open-loop system as it requires neither a measurement of pressure by a sensor nor feedback from a processor in order to regulate the melt flow. The self--regulating valve mechanically reacts to changes in melt pressure on control surfaces thereof by "bobbing" upwards/downwards to decrease/increase the melt flow accordingly. The self--regulating valve compensates for conditions that affect melt pressure, such as an increase/decrease in melt viscosity, changes in melt temperature, and/or mold cavity size without the use of a processing device.

Affiliated with

Also associated with

Rating

Open loop pressure control for injection molding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Open loop pressure control for injection molding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open loop pressure control for injection molding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2054009