Patent ID: 11865753
Assignee: MILACRON LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 11:
12. A method of cooling molded preforms, comprising:
a) transferring a set of first preforms from mold core pins of a mold to retained engagement within a set of first cooling tubes of a take-out plate;
b) drawing together the take-out plate and a transfer shell, the transfer shell spaced away from the mold;
c) inserting a set of first transfer pins of the transfer shell into the first preforms and urging air flow through the first pins to cool interior surfaces of the preforms while the preforms are in retained engagement within the first cooling tubes;
d) releasing the first preforms from retained engagement within the first cooling tubes and transferring the first preforms to retained engagement on the transfer shell;
e) positioning the preforms into a first set of second cooling tubes of a supplemental cooling device while the preforms are in retained engagement on the transfer shell;
f) transferring the preforms from retained engagement on the transfer shell to retained engagement within the second cooling tubes;
g) urging airflow against inner surfaces of the preforms while the preforms are in retained engagement within the second cooling tubes;
h) releasing the preforms from retained engagement within the second cooling tubes and transferring the preforms back to retained engagement on the transfer shell;
i) separating the transfer shell from the supplemental cooling device; and
j) ejecting the preforms from the transfer shell.