Rotary Filling Hub Insert for Sealing and Clean-In-Place
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Solution Overview
Problem
Rotary manifold filling machines face challenges in effective sealing and cleaning due to the plate against plate arrangement, which is difficult to seal and maintain.
Innovation Solution
A rotary filling machine design featuring a hub member and hub insert with axially aligned and mating inner and outer surface portions, allowing for sequential fluid transfer alignment and improved sealing, reduced maintenance, and enhanced cleanability through a rotatable hub member and stationary hub insert configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plate against plate rotary filling arrangement is used, then material transfer alignment is achieved, but sealing effectiveness deteriorates and cleaning difficulty increases
Solution Approach 1:
The filling machine is divided into a stationary hub member and a rotatable hub insert, separating the material transfer function from the sealing surface. This segmentation allows the sealing surfaces to remain stationary while material transfer occurs through aligned openings, resolving the contradiction between achieving material transfer alignment and maintaining sealing effectiveness.
Solution Approach 2:
The hub insert acts as an intermediary component that rotates within the stationary hub member. This intermediary structure enables material transfer alignment during rotation while the stationary hub member maintains consistent sealing surfaces, eliminating the sealing problems associated with plate-against-plate contact.
2Reliability
If a plate against plate rotary filling arrangement is used, then material transfer alignment is achieved, but maintenance difficulty increases
Solution Approach 1:
By segmenting the filling mechanism into a stationary hub member and a rotatable hub insert, the design simplifies maintenance. The hub insert can be independently removed and replaced without disassembling the entire machine, making maintenance accessible and straightforward while maintaining reliable sealing through the stationary hub member's sealing surfaces.
3Reliability
If a rotatable hub member with stationary hub insert is used, then sealing effectiveness improves, but device complexity increases
Solution Approach 1:
The hub insert is nested within the hub member, with the rotatable insert contained inside the stationary outer structure. This nesting arrangement achieves improved sealing effectiveness through stationary sealing surfaces while minimizing structural complexity by integrating components within a compact, space-efficient configuration.
Data Source
AI summary
A rotary filling machine includes a hub member and a hub insert. The hub member includes an internal bore defining an inner surface portion with a plurality of material transfer openings. The hub insert includes a portion disposed within the bore, wherein the portion includes an outer surface portion that includes a plurality of material transfer openings. One of the hub member or the hub insert is rotatable and the other of the hub member or the hub insert is stationary.