Systems and methods for dynamic rotary blow-fill-seal (BFS) machine cooling
Systems and methods for automatic and dynamic temperature adjustment and over-cooling of a rotary Blow-Fill-Seal (BFS) manufacturing device to reduce the fill product temperature such as for filling of BFS vials with cold-temperature vaccines.
1. A rotary Blow-Fill-Seal (BFS) manufacturing system, comprising:
a controller device;
a rotary mold system in communication with the controller device;
a parison head coupled to a supply of plastic resin and in communication with the controller device;
a filling mandrel disposed within the parison head and comprising a mandrel cooling circuit; and
a non-transitory memory device storing instructions that when executed by the controller device result in:
setting, by the controller device, the mandrel cooling circuit to a first level of cooling;
engaging, by the controller device and after the setting of the mandrel cooling circuit to the first level of cooling, the parison head, the rotary mold system, and the filling mandrel in coordination to produce a prefilled BFS container; and
setting, by the controller device and after the engaging, the mandrel cooling circuit to a second level of cooling.
2. The rotary BFS manufacturing system of claim 1 , wherein the engaging comprises an initiation of an extrusion of the plastic resin by the parison head.
3. The rotary BFS manufacturing system of claim 1 , wherein the mandrel cooling circuit further comprises a pump coupled to direct a fluid (i) into the filling mandrel via a cooling inlet, (ii) through a cooling outlet and into a first chilling unit, and (iii) from the first chilling unit back to the pump, a first temperature sensor disposed between the pump and the cooling inlet, and a second chilling unit coupled between the pump and the cooling inlet.
4. The rotary BFS manufacturing system of claim 3 , wherein the instructions, when executed by the controller device, further result in:
receiving, by the controller device and from the first temperature sensor, a first temperature reading;
comparing, by the controller device, the first temperature reading to a stored inlet temperature threshold corresponding to the second level of cooling, thereby defining a first comparison result; and
adjusting, by the controller device and based on the first comparison result, a setting of at least one of the pump, the first chilling unit, and the second chilling unit.
5. The rotary BFS manufacturing system of claim 3 , wherein the mandrel cooling circuit further comprises a second temperature sensor disposed between the cooling outlet and the first chilling unit and wherein the instructions, when executed by the controller device, further result in:
receiving, by the controller device and from the second temperature sensor, a second temperature reading;
comparing, by the controller device, the first temperature reading to at least one of a stored outlet temperature threshold corresponding to the second level of cooling and the first temperature reading, thereby defining a second comparison result; and
adjusting, by the controller device and based on the second comparison result, the setting of the at least one of the pump, the first chilling unit, and the second chilling unit.
6. The rotary BFS manufacturing system of claim 3 , wherein the fluid comprises glycol.
7. The rotary BFS manufacturing system of claim 3 , wherein the mandrel cooling circuit further comprises an orifice coupled between the pump and the cooling inlet.
8. The rotary BFS manufacturing system of claim 7 , wherein the orifice comprises a three-millimeter (3-mm) orifice.
9. The rotary BFS manufacturing system of claim 3 , wherein the setting of the mandrel cooling circuit to the first level of cooling comprises setting the first chilling unit to a first temperature setting and wherein the setting of the mandrel cooling circuit to the second level of cooling comprises setting the second chilling unit to a second temperature setting.
10. The rotary BFS manufacturing system of claim 9 , wherein the first temperature setting is between twenty degrees Celsius (20° C.) and thirty degrees Celsius (30° C.) and wherein the second temperature setting is between two degrees Celsius (2° C.) and twelve degrees Celsius (12° C.).
11. The rotary BFS manufacturing system of claim 1 , wherein the setting of the mandrel cooling circuit to the first level of cooling is conducted in response to an initiation of a first stage of a BFS manufacturing cycle and wherein the engaging comprises a second stage of the BFS manufacturing cycle.
12. The rotary BFS manufacturing system of claim 11 , wherein the BFS manufacturing cycle is cyclical and the setting of the mandrel cooling circuit to the first level of cooling and the second level of cooling is repeated for each iteration of the cycle.
13. The rotary BFS manufacturing system of claim 1 , wherein the setting of the mandrel cooling circuit to the second level of cooling is conducted by the controller device in response to the engaging.
14. The rotary BFS manufacturing system of claim 1 , wherein the instructions, when executed by the controller device, further result in:
receiving, via an input device in communication with the controller device, input indicative of the second level of cooling.
15. The rotary BFS manufacturing system of claim 14 , wherein the setting of the mandrel cooling circuit to the second level of cooling is conducted by the controller device in response to the receiving.
16. The rotary BFS manufacturing system of claim 1 , wherein the engaging comprises an initiation of a filling of the BFS container.
17. The rotary BFS manufacturing system of claim 1 , wherein the mandrel cooling circuit comprises a pump coupled to direct a fluid (i) into the filling mandrel via a cooling inlet, (ii) through a cooling outlet and into a first chilling unit, and (iii) from the first chilling unit back to the pump, and a first temperature sensor disposed between the pump and the cooling inlet and wherein the instructions, when executed by the controller device, further result in:
receiving, by the controller device and from the first temperature sensor, a first temperature reading;
comparing, by the controller device, the first temperature reading to a stored inlet temperature threshold corresponding to the second level of cooling, thereby defining a first comparison result; and
adjusting, by the controller device and based on the first comparison result, a setting of at least one of the pump and the first chilling unit.
18. The rotary BFS manufacturing system of claim 17 , wherein the mandrel cooling circuit further comprises a second temperature sensor disposed between the cooling outlet and the first chilling unit and wherein the instructions, when executed by the controller device, further result in:
receiving, by the controller device and from the second temperature sensor, a second temperature reading;
comparing, by the controller device, the first temperature reading to at least one of a stored outlet temperature threshold corresponding to the second level of cooling and the first temperature reading, thereby defining a second comparison result; and
adjusting, by the controller device and based on the second comparison result, the setting of the at least one of the pump and the first chilling unit.