Pressure die casting apparatus with sprue ejection mechanism

Details Pressure die casting apparatus with sprue ejection mechanism Pressure die casting apparatus with sprue ejection mechanism

1975-09-16

1976-11-09

Baldwin, Robert D.

Metal founding

Means to shape metallic material

Including means to eject or separate product from shaping...

92114, 164404, 425444, B22D 1722

Patent

active

039905012

ABSTRACT:
In a pressure die casting apparatus, a die locking device in which a locking member is pivotably mounted on a frame and is movable into a position opposing a die part mount to have the force on the die part in the casting operation act through the locking member onto the frame substantially in the direction of that force. Another die locking device employs a main cylinder and piston assembly and an auxiliary cylinder and piston assembly with the chambers of the two cylinders interconnected whereby actuation of the auxiliary piston locks pressurized fluid in the main chamber. A sprue ejector mechanism has a plunger movable in a tubular piston rod, the end of the plunger being threaded to a collar and held to the piston rod and a cap threaded to the end of the piston rod, all for precise adjustment of the plunger in the die cavity. In the sprue ejector mechanism a fixed piston and a forwardly located free piston are mounted on the piston rod to advance the plunger suddenly into the gate of the die and then to retract the plunger from the die cavity. A mount for holding a die part comprises a pair of side channels cooperating with a central block to form a C-shaped bracket, at least one of the brackets being slidable by a rack and piston assembly to give lateral access of the die part to the mount.

REFERENCES:
patent: 2624659 (1953-01-01), Haug et al.
patent: 3844335 (1974-10-01), Scott et al.

Affiliated with

Also associated with

Rating

Pressure die casting apparatus with sprue ejection mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure die casting apparatus with sprue ejection mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure die casting apparatus with sprue ejection mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1720049