Carder Gap Adjustment via Arcuate Wedge Guide
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Solution Overview
Problem
Current carding gap adjustment systems suffer from imprecise adjustments due to mechanical and manual methods, leading to deviations from the ideal arcuate contour, resulting in inconsistent carding distances and reduced precision.
Innovation Solution
An adjustment device with arcuate guides and wedge-shaped elements allows for precise adjustment of the carding gap by displacing the sliding strip on a support element, maintaining the ideal arc shape and minimizing cross-sectional weakening, enabling both manual and motorized operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a gear drive is arranged in a pocket of the sliding strip to adjust the radius, then the radius can be adjusted, but the installation space increases and the strength of the sliding strip is weakened, causing deviation from the exact pitch circle shape
Solution Approach 1:
The adjustment device is extracted from the sliding strip structure itself and placed as a separate external component. The device includes a support element with an arcuate guide and a guide element that interacts with the sliding strip from the outside, rather than embedding adjustment mechanisms within the sliding strip. This extraction preserves the sliding strip's structural integrity and strength while still enabling precise radius adjustment.
2Measurement precision
If adjusting elements are used to bend the sliding strip point by point, then the carding gap can be set, but the bending radius becomes uneven, reducing precision
Solution Approach 1:
The support element is designed with an arcuate guide that has a predetermined uniform curvature matching the desired pitch circle shape. This arcuate guide ensures that when the guide element moves along it, the sliding strip maintains a consistent bending radius, producing the exact circular contour required for precise carding gap adjustment throughout the entire circumference.
3Device complexity
If manual adjustment via wedge system is used, then the system is simple, but the adjustment precision is insufficient for narrow carding gaps
Solution Approach 1:
The device incorporates both a static wedge-shaped support element for rough adjustment and a dynamic guide element that can move precisely along the arcuate guide for fine-tuning. This dynamic component allows for continuous, precise adjustment of the carding gap while maintaining the simplicity of the overall mechanical system without complex actuators or control systems.
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 solution allows for precise adjustment of the carding gap with minimal deviation from the ideal arc shape, enhancing the accuracy and reliability of the carding process, and enabling adjustments as small as 0.025 mm over a large path, improving the overall carding performance.
Implementation Method 1
each sliding strip having at least one wedge-shaped strip (20), which is slidably arranged on a mutually aligned wedge-shaped support element (19)
Data Source
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AI summary
The invention relates to a carder having a device for setting the carding gap between revolving carding elements (14) and a drum (4). The carding elements (14) co-operate with at least one arcuate sliding rail (18), arranged on both sides of the drum (4) on a side plate, each sliding rail (18) having at least one wedge-shaped rail (20) which is movably arranged on a mutually oriented wedge-shaped support element (19), and the rail (20) can be adjusted and fixed on the support element (19) by means of a device. The invention is characterised in that the device can be fixed on a lateral end face of the support element (19).