Mold Assembly for PVA Plastic Material and Shunt Cone of the Same

A mold assembly for PVA plastic material comprising:

• a pressing mold having a mold cavity defined in the pressing mold;
• a shunt cone disposed in the mold cavity of the pressing mold to define a pressing channel between the shunt cone and the pressing mold, the pressing channel having a conical shape having a diameter gradually decreasing from a bottom of the mold cavity to a top of the mold cavity, and the shunt cone comprising
• a body having a conical cone portion formed on an end of the body;
• an inlet channel defined in the body of the shunt cone;
• and
• an outlet channel defined in the body of the shunt cone, wherein the inlet channel has an extension height from a top of shunt cone being higher than an extension height of the inlet channel from the top of the shunt cone;
• and
• a mold cap attached to a bottom of the pressing mold and having a lower mold cavity defined in a top of the mold cap and having a shape corresponding to a shape of the cone portion of the shunt cone to allow the cone portion of the shunt cone to extend into the lower mold cavity and to define a conical shaped connection channel between the cone portion of the shunt cone and the mold cap, the connection channel communicating with the pressing channel, and a material input channel defined in the mold cap and communicating with the connection channel.