Two part rotary die encapsulation system
Disclosed herein are a rotary die encapsulation system and process for manufacturing capsules and uses thereof. The rotary die encapsulation system and process may be used for improving content uniformity of a multi-phase fill composition in a capsule. The rotary die encapsulation system and process may also be used for tuning dose strength of a fill composition in a capsule.
1. A system comprising:
a first rotating encapsulation die comprising a first set of die cavities;
a continuous first film on the first rotating encapsulation die;
a second rotating encapsulation die comprising a second set of die cavities;
a continuous second film on the second rotating encapsulation die;
a wedge positioned between the first rotating encapsulation die and the second rotating encapsulation die;
one or more dispensing tubes integrated into the wedge and aligned with at least one cavity in the first set of die cavities or in the second set of die cavities, the one or more dispensing tubes configured to inject a first fill composition and a second fill composition into the at least one cavity;
a first mechanical dispensing mechanism for dispensing a first amount of a first fill composition via a first feeding tube to the one or more dispensing tubes;
a second mechanical dispensing mechanism for dispensing a second amount of a second fill composition via a second feeding tube to the one or more dispensing tubes, and
wherein the one of more dispensing tubes comprises a joint dispensing tube, wherein the first feeding tube and the second feeding tube converge into the joint dispensing tube, wherein the joint dispensing tube is positioned off-center in the wedge and is aligned with an off-center cavity in the first set of die cavities or in the second set of die cavities, the joint dispensing tube configured for dispensing jointly the first amount of the first fill composition and the second amount of the second fill composition into the off-center cavity.
2. The system of claim 1 , further comprising a synchronization mechanism for synchronizing the rotation of at least one of the first rotating encapsulation die and the second rotating encapsulation die with at least one of the first mechanical dispensing mechanism and the second mechanical dispensing mechanism such that a first amount of the first fill composition and a second amount of the second fill composition are timely trapped in the at least one cavity in the first set of die cavities or in the second set of die cavities between at least one of the continuous first film or the continuous second film and the wedge.