Shoe Press Hydraulic Loading Simplification
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Solution Overview
Problem
Shoe presses in paper production require simplification of construction and reduced production costs to meet current production needs while maintaining efficiency, as existing designs are complex and costly to maintain.
Innovation Solution
A shoe press design featuring a tubular belt with a metal structure, a support element, and hydraulic loading means comprising double-effect piston cylinders arranged in rows, allowing for efficient compression of paper and water absorption, with a simplified structure that reduces manufacturing and maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional shoe press designs are used, then pressing efficiency is maintained, but construction complexity and production costs increase
Solution Approach 1:
The loading means are divided into multiple independent hydraulic pistons arranged in rows, each piston being a separate, simple unit. This segmentation allows the complex loading function to be achieved through multiple simple components rather than one complex mechanism, reducing overall device complexity while maintaining manufacturing simplicity
Solution Approach 2:
Hydraulic pistons are used to provide the loading force, replacing more complex mechanical linkage systems. The hydraulic system offers a simpler, more direct way to generate and control the pressing force, reducing mechanical complexity while maintaining ease of manufacture
2Ease of manufacture
If traditional shoe press designs are used, then pressing function is maintained, but production costs increase
Solution Approach 1:
The hydraulic pistons are designed to be self-lubricating with simple rod end bearings that require minimal maintenance. The system uses gravity and hydraulic pressure naturally, without requiring complex control systems or frequent adjustments, reducing operational costs while maintaining reliability
Solution Approach 2:
The design uses simpler, more replaceable components such as the hydraulic pistons and shoe elements that can be easily replaced if needed. This approach allows using less expensive materials and designs that prioritize ease of replacement over long-term durability, reducing production costs while maintaining operational reliability through simplicity
3Device complexity
If simplified shoe press design is used, then manufacturing cost decreases, but structural robustness may worsen
Solution Approach 1:
The support structure combines the shoe support, piston mounting, and frame elements into a single integrated assembly. This merging reduces the number of separate structural components and simplifies the overall design while maintaining structural strength through the unified construction that distributes loads efficiently across the combined structure
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Shoe press comprising a fixed support structure (2, 10), a flexible belt (1) rotating about said fixed support structure (2, 10) which flexible belt (1) can be pushed against a bearing element (4) to define a pressure nip (N), a shoe (3) connected with the fixed support structure (2, 10) and arranged with respect to the belt (1) so as to push the latter towards the bearing element (4) in correspondence of the nip (N) by effect of a pressure exerted on the same shoe (3) by corresponding loading means. The loading means are constituted by hydraulic cylinders each of which has a chamber (90) formed by a corresponding passing hole formed in the fixed support structure (2, 10) and a rod (91) which on one side is free to slide inlaid hole and on the other side transmits pressure to the shoe (3).