Rotatable Sleeve Roll for Adjustable Dewatering Wrap
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Solution Overview
Problem
Existing sleeve rolls lack flexibility in adjusting dewatering parameters, such as fabric tension wrap length, pressure, and dwell time, which limits their effectiveness in fiber web forming processes.
Innovation Solution
A sleeve roll design featuring a rotatable axle beam with adjustable rotational angle, enabled by moving means such as an annular flange and actuating mechanisms like a rigging screw, allows for varying fabric tension wrap parameters during operation, including length, pressure, and dwell time, without requiring full 360° rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stationary sector support shoe is used, then the structure is simple and stable, but the dewatering parameters (fabric tension wrap length, pressure, dwell time) cannot be adjusted
Solution Approach 1:
The axle beam is made rotatable about its axis within the bearing structure, transforming the stationary support shoe into a dynamic component. This rotation enables adjustment of the fabric tension wrap parameters (length, pressure, dwell time) while maintaining a relatively simple overall structure. The bearing structure supports this rotational movement, allowing parameter variation without complex adjustment mechanisms.
2Adaptability or versatility
If the sleeve roll has a perfect circular sectional shape, then the structure is simple, but the fabric tension wrap parameters cannot be varied
Solution Approach 1:
Instead of changing the sectional shape to achieve parameter variation, the invention maintains a simple circular sectional shape and achieves variability through rotation of the axle beam about its axis. This dynamic approach allows the same simple shape to produce variable fabric tension wrap parameters depending on the rotational position.
3Ease of operation
If the axle beam is made rigid and fixed, then the structural stability is high, but the startup process is difficult and requires mechanical retraction
Solution Approach 1:
The axle beam is designed to be rotatable within the bearing structure, enabling easy startup by rotating the sleeve roll to bring the peak pressure fabric wrap area into the operational position. This rotational capability eliminates the need for mechanical retraction while maintaining structural stability through the bearing support.
4Adaptability or versatility
If moving means with full 360° rotation capability are provided, then the adjustability is maximum, but the device complexity and cost increase
Solution Approach 1:
The moving means is designed to provide rotation only to the extent necessary for operational adjustment, rather than full 360° capability. This partial action approach achieves the required adjustability of fabric tension wrap parameters while avoiding the complexity and cost of over-engineered rotation mechanisms.
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
Enables precise adjustment of dewatering parameters, facilitating easier startup and improved dewatering efficiency in fiber web forming machines, allowing for fine tuning during operation without mechanical retraction.
Implementation Method 1
the actuating means can comprise a screw, a gear, a worm gear, a rigging screw, or a hydraulic cylinder
Implementation Method 2
the actuating means can comprise a screw, a gear, a worm gear, a rigging screw, or a hydraulic cylinder
Implementation Method 3
the actuating means can comprise a screw, a gear, a worm gear, a rigging screw, or a hydraulic cylinder
Implementation Method 4
The axle stub is supported in a bearing structure
Data Source
Figure 1
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AI summary
A sleeve roll (1) comprises an axle beam (11) with an axle stub (13). The axle stub (13) is supported in a bearing structure (21). Moreover, the sleeve roll (1) comprises a roll head (31) which is configured to support a belt (41) being tensioned about and being rotatable about the axle beam (11). The belt (41) is rotatable about and relative to the axle beam (11). Moving means (22) are configured to rotate the axle beam (11) within the bearing structure (21).