Molding system including shooting-pot assembly and valve assembly in which hold pressure not provided by shooting pot assembly

摘要

A molding system (100), comprising: a shooting-pot assembly (102; 202A; 202B); and a valve assembly (104; 204A; 204B) having an input port (106; 206A; 206B) being configured to input a melt, an output port (108; 208A; 208B) being configured to output the melt, and a transfer port (110; 210A; 210B) connected to the shooting-pot assembly (102; 202A; 202B).

主权项

1. A molding system (100), comprising:
a shooting-pot assembly (102; 202A; 202B); and a valve assembly (104; 204A; 204B) having an input port (106; 206A; 206B) being configured to input a melt, an output port (108; 208A; 208B) being configured to output the melt, and a transfer port (110; 210A; 210B) connected to the shooting-pot assembly (102; 202A; 202B), the valve assembly is configured to operate in:
(i) a first operation mode in which the output port is shut off while permitting transfer of the melt from the input port to the shooting-pot assembly;(ii) a second operation mode in which the input port is shut off while permitting the shooting-pot assembly to push the melt from the transfer port to the output port; and(iii) a third operation mode in which a hold pressure is permitted to be applied from the input port to the output port, and in which the transfer port is open to allow the transfer of melt to the shooting-pot assembly.