Extended Nip Support Body Assembly for Fast On-Site Replacement
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Solution Overview
Problem
The manufacturing of flexible support bodies for extended nip presses in paper machines is complicated, requiring multiple materials and processes, and replacing them leads to costly downtime due to the need for interrupting the paper machine operation.
Innovation Solution
A method for manufacturing a support body arrangement involving separate production of a base body and a support body, connected via a mounting structure that allows for easy assembly and disassembly, enabling on-site replacement without disrupting the machine's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flexible support bodies are used to adjust the extended nip and achieve suitable pressure profile, then the adaptability and pressure control are improved, but the manufacturing complexity increases and replacement costs increase
Solution Approach 1:
The support body is divided into a base body and a separate support body component that can be manufactured independently and then assembled together using a mounting structure. This segmentation allows each component to be optimized and manufactured separately, reducing the overall manufacturing complexity while maintaining the flexibility and adaptability of the flexible support body.
2Adaptability or versatility
If flexible support bodies are used to adjust the extended nip and achieve suitable pressure profile, then the adaptability and pressure control are improved, but the replacement time and operational downtime increase
Solution Approach 1:
By segmenting the support body into a base body and a separate support body component with a mounting structure, the support body can be quickly removed and replaced without replacing the entire assembly. This reduces replacement time and minimizes operational downtime while maintaining the flexible properties needed for nip adjustment.
Solution Approach 2:
The mounting structure is pre-configured to enable quick attachment and detachment of the support body. This preliminary preparation of the mounting interface allows for rapid replacement operations, reducing the time required to replace flexible support bodies during maintenance.
3Manufacturing precision
If multi-step manufacturing processes with multiple materials are used to form the support body, then the manufacturing precision and material properties are improved, but the manufacturing complexity and monitoring requirements increase
Solution Approach 1:
The support body is segmented into a base body and a separate support body component, each manufactured independently using optimized processes for their specific requirements. This reduces the complexity of multi-step manufacturing while maintaining precision, as each component can be manufactured using the most suitable material and process rather than requiring complex integration of multiple materials.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates efficient and cost-effective manufacturing and maintenance of support bodies, allowing for versatile use and reduced downtime by enabling separate production and on-site replacement of components.
Implementation Method 1
the mounting structure comprises an adhesive and the mounting of the support body on the base body comprises applying the adhesive to at least one of the base body and the support body and bringing the base body and the support body into contact with each other with the adhesive between them
Data Source
AI summary
The present invention relates to a method for manufacturing a support body arrangement for an apparatus having an extended nip formed between the support body and a counter-pressure member, wherein the method comprises: providing a base body (51) comprising at least one pressure chamber configured to be pressurized for controlled expanding of the base body in a first direction; providing a support body (52) comprising a working surface (15) for forming an extended nip with a counter-pressure member; providing a mounting structure (53); mounting the support body (52) on the base body (51) by applying the mounting structure (53) so that movement of the support body (52) in relation to the base body (51) is prevented, wherein the support body (52) is placed on the base body (51) so that the working surface (15) faces away from the base body (51). The invention also relates to a support body arrangement.