Carding Machine Flexible Arch Gap Adjustment
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Solution Overview
Problem
Current carding machines face challenges in achieving precise and automatic adjustability of the carding gap due to material deformation and limited adjustment range, which affects accuracy and consistency, especially under temperature changes and clothing wear.
Innovation Solution
The carding machine is equipped with a flexible arch adjustable at eight points, featuring a sliding strip system with a gradient of at least 0.05% and a sensor for precise adjustment, allowing for a larger adjustment range and maintaining geometric accuracy without significant deformation, enabling automatic calibration and constant carding gap maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the adjustment range of the slide bars is increased to compensate for clothing wear and temperature changes, then the carding gap can be maintained over time, but the flexible bend deforms further between adjustment points, increasing the deviation from the geometrically ideal contour
Solution Approach 1:
The flexible bend is divided into multiple segments by introducing at least eight adjustment points along its length. This segmentation allows the flexible bend to be adjusted at multiple locations, enabling it to maintain geometric accuracy while providing sufficient adjustment range to compensate for clothing wear and temperature changes without excessive deformation between adjustment points.
2Manufacturing precision
If the number of adjustment points on the flexible bend is increased to reduce deformation between points, then the geometric accuracy is improved, but the device complexity increases
Solution Approach 1:
Instead of providing continuous adjustment along the entire flexible bend, the invention applies adjustment points at specific critical locations (at least eight strategically positioned points). This partial action approach achieves sufficient geometric accuracy by concentrating adjustment capability where it is most needed, rather than distributing it uniformly, thereby avoiding excessive device complexity.
3Ease of manufacture
If manual calibration with feeler gauges is used to set the carding gap, then the adjustment can be made with current tools, but the precision depends on operator experience and the process is time-consuming
Solution Approach 1:
The invention replaces the manual mechanical calibration process using feeler gauges with an automatic calibration system that uses sensors to detect the carding gap and actuators to adjust the slide bars. This substitution eliminates dependency on operator experience and significantly improves measurement precision while reducing calibration time.
Solution Approach 2:
The carding machine is equipped with automatic calibration capability that performs the carding gap adjustment itself without requiring external operators. The sensor-actuator system automatically measures the current gap, compares it to the target value, and adjusts the flexible bend and slide bars accordingly, enabling the machine to self-calibrate.
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 ensures a carding gap deviation of less than 0.025 mm, maintaining accuracy and eliminating the need for frequent adjustments during operation, allowing for precise and automatic adjustment of the carding gap over the lifespan of the clothing.
Implementation Method 1
each slide bar consists of two wedge-shaped slide bars aligned against one another, wherein an upper slide bar is arranged displaceably on a lower slide bar
Data Source
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AI summary
The invention relates to a carding machine (100) having a drum (4) mounted in a rotatable manner between two side plates (28), wherein in each case at least one flexible bend (29) is arranged in a settable manner directly or indirectly on in each case one side plate (28) by means of a plurality of setting points, and, at or on each flexible bend (29), at least one sliding strip (18) for guiding a multiplicity of revolving flat bars (14) of a revolving flat card system (17), wherein each sliding strip (18) consists of two sliding strips (18a, 18b) oriented in a wedge shape with respect to one another, wherein an upper sliding strip (18a) is arranged in a displaceable manner on a lower sliding strip (18b), wherein the flexible bend (29) is arranged in a settable manner at at least eight adjusting points (19a - 19f, 24) directly or indirectly on the side plate (28) concentrically with the drum (4).