Carding Machine Flexible Bow Alignment Using Electrical Contact Detection
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Solution Overview
Problem
Existing methods for adjusting the concentricity of flexible bows or sliding bars to a carding machine drum are subjective and dependent on technician experience, leading to inconsistent carding gaps and potential wear on components.
Innovation Solution
A device and method using resistance measurement or electrical contact detection to adjust flexible bows concentrically to a carding machine drum, ensuring precise alignment through contact points between flat bar clothing and drum clothing, allowing for consistent carding gap adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional distance gauge adjustment method is used, then adjustment process is simple, but adjustment precision and consistency are poor due to technician experience dependency
Solution Approach 1:
The patent replaces the traditional mechanical distance gauge measurement system with an electrical measurement system. Electrical contact elements detect contact points between the flat bar clothing and drum clothing through electrical conductivity, substituting mechanical measurement with electrical field detection to achieve higher precision and automation in concentricity adjustment.
Solution Approach 2:
The adjustment system uses the existing clothing components themselves as the measurement elements. The clothing on flat bars and drum make direct electrical contact during rotation, and this self-contact is detected by the electrical contact elements, eliminating the need for separate mechanical measurement tools and enabling automated detection.
2Measurement precision
If measuring flat with electronic recording is used, then concentricity measurement precision is improved, but device cost and complexity increase significantly
Solution Approach 1:
The patent extracts only the essential measurement function from complex electronic recording systems. Instead of using full electronic measurement and recording systems, it isolates the core function of detecting contact points through electrical conductivity, using simple electrical contact elements that detect when clothing components touch during drum rotation.
Solution Approach 2:
The system uses simple, inexpensive electrical contact elements instead of expensive electronic recording equipment. These contact elements are basic conductive components that can be easily replaced if needed, providing accurate measurement data without the high cost and complexity of sophisticated electronic measurement systems.
3Stability of the object's composition
If frequent adjustment is performed to maintain consistent carding gap, then carding quality consistency is improved, but component wear increases due to repeated mechanical adjustments
Solution Approach 1:
The patent replaces mechanical adjustment operations with automated electrical detection and control. The electrical contact elements continuously monitor contact points during drum rotation, and the control system automatically adjusts the position of flat bars or drum to maintain consistent carding gaps, eliminating repeated manual mechanical adjustments that cause wear.
Solution Approach 2:
The system implements continuous feedback through electrical contact detection. As the drum rotates, the electrical contact elements detect contact points between clothing components, providing real-time information about carding gap consistency. This feedback enables automated adjustment mechanisms to maintain optimal gaps without manual intervention, reducing component wear from frequent mechanical adjustments.
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
Ensures precise and consistent alignment of flat bars relative to the drum, reducing wear and maintaining uniform carding quality across the drum width, independent of technician skill.
Implementation Method 1
the means for determining the at least one contact between the clothing of the flat bar and the clothing of the drum can be designed as a resistance measuring device
Implementation Method 2
the carding gap between the carding drum and the revolving flats can be adjusted during operation, particularly in the event of temperature changes on the carding machine
Data Source
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AI summary
The present invention relates to a device and a method for adjusting at least one flexible bend (27) concentrically with respect to a rotatably mounted clothed drum (4) of a carding machine, wherein at least one flexible bend (27) for guiding a plurality of revolving card-flat bars (14) of a revolving flat system (17) either side of the drum (4) is in each case adjustably arranged directly or indirectly on a respective side shield (16) by means of a plurality of adjustment points, wherein a means is provided by means of which at least one point of contact can be established between the card clothing (14a) of the card-flat bar (14) and the card clothing (4a) of the drum (4), such that the flexible bend (27) can be adjusted concentrically with respect to the drum (4).