Capping Head Cover Segmentation for Clean Room Contamination Control
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Solution Overview
Problem
Conventional capping heads are disadvantaged in clean room environments due to poor cleanability and the need for lubrication, particularly with non-ferrous metals.
Innovation Solution
A seamer head design featuring pivotable movement arms with actuation and contact sections, protected by a hood-shaped or trough-shaped cover, and sealed to prevent contamination, along with a pneumatic control system for reliable clean room separation and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional capping heads are used in clean room environments, then the capping function can be performed, but the cleanability deteriorates and contamination risk increases
Solution Approach 1:
The capping head is divided into distinct cleanable surfaces (cover, movement arms) and non-cleanable internal components (control element, actuating portion). This segmentation allows the external surfaces to be easily cleaned and sterilized while protecting the internal mechanisms from contamination, directly resolving the cleanability issue in clean room environments.
Solution Approach 2:
The cover acts as an intermediary protective barrier between the cleanable external surfaces and the non-cleanable internal components. It allows the capping head to function while protecting critical parts from contamination, enabling operation in clean room environments without compromising cleanability.
2Reliability
If lubrication is applied to ensure smooth operation, then the operational reliability improves, but the contamination risk increases
Solution Approach 1:
The lubrication requirement is extracted from the visible and accessible areas by confining it to the internal non-cleanable components through the cover. This allows lubrication to maintain operational reliability while preventing contamination of the cleanable surfaces and surrounding environment.
Solution Approach 2:
Different parts of the capping head have different cleanliness requirements. The cover and movement arms are designed for easy cleaning and sterilization, while the internal control element and actuating portions can contain lubrication. This local differentiation allows operational reliability to be maintained without compromising cleanability.
3Duration of action of stationary object
If non-ferrous metals are used to prevent corrosion, then the durability improves, but the cleanability deteriorates
Solution Approach 1:
The capping head is segmented into cleanable external surfaces (cover, movement arms) and non-cleanable internal components. This allows the use of non-ferrous metals for durability in the internal sections while maintaining cleanability of the external surfaces through appropriate material selection and design for easy cleaning.
Solution Approach 2:
Different materials can be used for different parts based on their functional requirements. Non-ferrous metals provide durability for internal components subject to corrosion, while the cleanable surfaces can use materials optimized for hygiene and ease of cleaning, resolving the contradiction between durability and cleanability.
Data Source
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AI summary
The invention relates to a sealing head (26) comprising at least one movement arm (28, 30) which has an actuating section (32) for actuating the at least one movement arm (28, 30) and a contact section (42) for contacting a closure. The sealing head (26) further comprises a control element (34) which is or can be brought into contact with the actuating section (32) of the at least one movement arm (28, 30) to cause movement, and a cover (48) which covers the control element (34) and the actuating section (32) of the at least one movement arm (28, 30). Preferably, the cover (48) can protect important components of the sealing head (26) from cleaning fluid, etc.