초록 ▼

A variable-position mold system with a plurality of injection systems operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals (1,000 psi) and about 103.42 megapascals (15,000 psi) to a set of mold cavities of at least one multi-cavity injection mold

A variable-position mold system with a plurality of injection systems operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals (1,000 psi) and about 103.42 megapascals (15,000 psi) to a set of mold cavities of at least one multi-cavity injection mold insert when in fluid communication therewith. The multi-cavity injection mold inserts have a thermal conductivity of greater than 30 BTU/HR FT ° F., and have little or no cooling channels therein.

대표청구항 ▼

1. An injection molding system comprising: at least one multi-cavity injection mold insert made of a metal having a thermal conductivity of more than 30 BTU/HR FT ° F.;a first injection system operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals

1. An injection molding system comprising: at least one multi-cavity injection mold insert made of a metal having a thermal conductivity of more than 30 BTU/HR FT ° F.;a first injection system operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals (1,000 psi) and about 103.42 megapascals (15,000 psi) to a set of mold cavities of the at least one multi-cavity injection mold insert when in fluid communication therewith;a second injection system operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals (1,000 psi) and about 103.42 megapascals (15,000 psi) to the set of mold cavities of the at least one multi-cavity injection mold insert when in fluid communication therewith;a variable-position section to which a multi-cavity injection mold insert is secured, the variable-position section operable to position the set of mold cavities of the at least one multi-cavity injection mold insert into fluid communication with the first injection system when in a first orientation and to position the set of the at least one multi-cavity injection mold insert into fluid communication with the second injection system when in a second orientation; anda cooling system that is entirely confined within the variable position section and does not extend into any multi-cavity injection mold inserts of the variable position section. 2. The injection molding system of claim 1, further comprising a third injection system operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals (1,000 psi) and about 103.42 megapascals (15,000 psi) to the set of mold cavities of the at least one multi-cavity injection mold insert when in fluid communication therewith. 3. The injection molding system of claim 1, wherein the variable-position section is rotatable about a horizontal axis. 4. The injection molding system of claim 1, wherein the variable-position section is a rotatable central section of a cube mold rotatable about a vertical axis. 5. The injection molding system of claim 4, including a plurality of the multi-cavity injection mold inserts, each of the multi-cavity injection mold inserts being secured to a distinct face of the cube mold, with the set of mold cavities in one of the multi-cavity injection mold inserts on one of the faces of the cube mold being in fluid communication with the first injection system while a set of mold cavities in another of the multi-cavity injection mold inserts on another one of the faces of the cube mold is in fluid communication with the second injection system. 6. The injection molding system of claim 5, wherein the first and second injection systems are axially aligned with one another. 7. The injection molding system of claim 6, further comprising a third injection system operable to deliver molten material at a substantially constant pressure of between about 6.89 megapascals (1,000 psi) and about 103.42 megapascals (15,000 psi) to the set of mold cavities of the at least one multi-cavity injection mold insert when in fluid communication therewith, the third injection molding system being orthogonal to the first and second injection systems. 8. The injection molding system of claim 1, wherein the cooling system includes an evaporative cooling system. 9. The injection molding system of claim 1, wherein the variable-position section is operable to position the set of mold cavities to any desired number of orientations.