Revolving Flat Bracket for Carding Machine Maintenance
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Solution Overview
Problem
Existing revolving flats for cards face challenges in providing easy access to flat bars and reproducible adjustability, with limited accessibility and complex tension adjustment mechanisms.
Innovation Solution
The design incorporates a bracket between deflection rollers with rotatable ends and an arched shape, allowing for easy assembly and precise tension adjustment via an eccentric mechanism, creating a large free space for inspection and cleaning, and utilizing additional deflection rollers to minimize friction and tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the bracket for deflecting the pull elements is fixed to the frame of the carding machine, then the structure is stable, but the accessibility for removal or inspection of cover bars becomes difficult
Solution Approach 1:
The bracket is segmented into two parts: a first bracket portion fixed to the frame and a second bracket portion attached to the side plate. This segmentation allows the second portion to be detached, improving accessibility for maintenance while the first portion remains fixed to maintain structural stability.
Solution Approach 2:
The bracket transitions from a completely fixed structure to a dynamic structure where the second bracket portion can be detached and repositioned. This allows the system to switch between a stable fixed state during operation and an accessible detached state during maintenance.
2Stability of the object's composition
If the bracket is attached to the side panel, then the structure is stable, but the adjustment of tensioning elements becomes very complex
Solution Approach 1:
The bracket is divided into a first fixed portion and a second adjustable portion. This segmentation simplifies the adjustment mechanism by isolating the tensioning function to the second portion, which can be independently adjusted without affecting the overall structural stability provided by the first portion.
Solution Approach 2:
The second bracket portion acts as an intermediary element between the fixed first bracket portion and the tensioning elements. It provides a stable mounting point while allowing simple adjustment of the tensioning elements through direct attachment to the side plate.
3Stability of the object's composition
If guide elements are arranged between deflection rollers and attached to flanges extending from the side plate, then the guide structure is stable, but the available space between circulating cover bars is limited
Solution Approach 1:
The guide structure is segmented by attaching the second bracket portion to the side plate rather than extending flanges from the side plate. This creates space between the first and second bracket portions, allowing adequate clearance for maintenance activities while maintaining guide structure stability.
Solution Approach 2:
The bracket design moves the attachment point to a different spatial dimension (attached to the side plate surface) rather than extending flanges horizontally from the side plate. This dimensional change creates vertical space between the upper and lower runs of the traction element, improving accessibility.
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
This design enables easy and reproducible adjustment of tension, enhances accessibility for maintenance, and maintains precise support, simplifying the process of mounting, removing, and inspecting flat bars while ensuring reliable operation.
Implementation Method 1
an adjustment element which is designed as an eccentric that interacts with the support of the bracket
Data Source
Figure 1
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AI summary
The present invention relates to a card having a revolving flat (17), comprising at least two pulling means which are designed to hold a plurality of flat rods (20) in the region of the end faces thereof and to guide same at least around a part-circumference of a drum (4) of the card, the pulling means together with the flat rods (20) each being guided around two deflection rolls (24, 25) which are situated above the side plates (22) of the card. The invention is characterised in that a bracket (23) is arranged between each pair of deflection rolls (24, 25), said bracket being designed to hold further guide elements (26, 27, 28, 29, 35) for guiding the pulling means, wherein the ends of the bracket (23) are arranged on flanges (24b, 25b) on which the deflection rolls (24, 25) are mounted.