Welding unit
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Solution Overview
Problem
Existing welding units for film tubes in waterless toilets require high effort and cost for exchanging worn-out welding means covers, necessitating complete jaw replacement.
Innovation Solution
The welding unit features detachable welding means covers connected to the jaws in a form-fitting manner, with PTFE-coated woven glass fabric tapes that can be cut to length, equipped with latching hooks for easy exchange and stable fastening, allowing for simplified and cost-effective replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If welding means covers are permanently fixed to welding jaws, then structural stability is improved, but exchange complexity and cost increase
Solution Approach 1:
The welding means cover is segmented into a detachable cover portion and a jaw portion, allowing the cover to be separated from the jaw. This enables the cover to be exchanged independently without replacing the entire welding jaw assembly, resolving the contradiction between structural stability and exchange complexity.
Solution Approach 2:
The connection between the welding means cover and jaw is made dynamic through detachable fastening means (such as clips or latches) that allow the cover to be securely attached during operation but easily removed when needed. This dynamic connection resolves the contradiction by providing both stability during use and ease of exchange when required.
2Ease of operation
If welding means covers are made detachable, then exchange effort is reduced, but fastening stability decreases
Solution Approach 1:
The fastening system uses detachable fastening means that provide stable mechanical engagement during operation while allowing easy release. The fastening means are designed to maintain secure attachment under welding conditions but can be quickly released by the user, resolving the contradiction between exchange effort and fastening stability.
Solution Approach 2:
The detachable fastening means act as an intermediary element between the cover and jaw, providing a reliable connection during operation while enabling easy separation when exchange is needed. This intermediary mechanism resolves the contradiction by mediating between the opposing requirements of stability and ease of exchange.
3Reliability
If complete welding jaw is replaced instead of just covers, then functional reliability is improved, but cost and time consumption increase
Solution Approach 1:
The welding jaw assembly is segmented into replaceable cover components and a permanent jaw body. This allows only the worn cover to be replaced while retaining the functional jaw structure, resolving the contradiction between functional reliability and time consumption by enabling selective replacement of only the necessary component.
Solution Approach 2:
The detachable cover is designed as a consumable component that can be discarded when worn, while the valuable jaw structure is recovered and retained for continued use. This approach resolves the contradiction by discarding only the worn cover rather than the entire assembly, reducing both time and cost while maintaining functional reliability.
Data Source
AI summary
The invention relates to a welding unit (1) for the welding of film tubes for a waterless toilet, the welding unit (1) comprising welding jaws (2, 3), the welding jaws (2, 3) comprising welding means covers (4, 5), characterized in that the welding means covers (4, 5) are detachably arranged on the welding jaws (2, 3), in particular are detachably connected to the welding jaws (2, 3).