Sealing Head Ram Assembly for Single-Use Pod Manufacturing
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Solution Overview
Problem
The existing methods for manufacturing single-use pods face challenges such as the lid sticking to the sealing head during production, which can cause deformation and improper engagement with brewing machines, and the use of vacuum to prevent sticking can lead to quality issues and waste reduction concerns.
Innovation Solution
A sealing head with a movable ram assembly that securely attaches and separates the lid from the pod body using a pneumatically powered actuator, eliminating the need for vacuum and reducing the likelihood of sticking by using a damping spring and a sealing assembly that applies pressure and heat for thermal fusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vacuum is used to prevent the lid from sticking to the sealing head, then the lid can be securely attached, but quality issues arise and waste increases
Solution Approach 1:
The patent removes the vacuum system from the sealing head, extracting the harmful sticking mechanism while retaining the essential sealing function through alternative means (mechanical pressing and thermal fusion)
Solution Approach 2:
The patent converts the harmful sticking effect into a beneficial thermal fusion process by applying heat and pressure through the sealing surface, transforming the lid attachment mechanism from vacuum-dependent to heat-dependent
2Manufacturing precision
If the lid is pressed against the sealing head for thermal fusion, then secure attachment is achieved, but the lid may stick and deform
Solution Approach 1:
The patent introduces a movable ram assembly that can dynamically adjust its position between retracted and extended states, allowing controlled application and release of pressing force to prevent deformation while achieving secure attachment
Solution Approach 2:
The patent changes the physical parameters of the pressing mechanism by introducing controlled heat application through the sealing surface, transforming the attachment process from cold pressing to thermal fusion, which prevents sticking and deformation
3Object-generated harmful factors
If a movable ram assembly is added to separate the pod from the sealing head, then sticking is reduced, but device complexity increases
Solution Approach 1:
The movable ram assembly serves multiple functions: it applies pressing force during sealing, enables pod separation after sealing, and prevents sticking through controlled movement, replacing what would otherwise require multiple separate mechanisms
Solution Approach 2:
The patent combines the sealing and separation functions into a single integrated ram assembly mechanism, merging what could be separate operations into one coordinated moving component
Data Source
AI summary
A sealing head for use in manufacturing a single-use pod, the sealing head comprising: a sealing assembly for securing a lid to a body of the pod, the sealing assembly having a sealing surface for pressing against the lid; and a ram assembly for separating the pod from the sealing assembly, the ram being at least partially movable relative to the sealing surface between a retracted position and an extended position, wherein in the retracted position a pressing face of the ram assembly is aligned with or recessed from the sealing surface, and in the extended position the pressing face extends beyond the sealing surface to contact the pod and separate the pod from the sealing assembly.