Drum system comprising multiple horizontal bars
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Solution Overview
Problem
Existing textile finishing drum systems fail to effectively eliminate fabric tension, provide adequate beating action, correct pile directions, and handle wide products due to their circular or elliptical cross-sections, which limits their functionality in expanding and softening fabrics, and results in production dust and mechanical faults.
Innovation Solution
A drum system with a plurality of horizontal bars arranged at specific intervals forming an elliptical or polygonal geometry, combined with a helical expander wrap, which provides multiple linear strikes and increased friction, enabling deeper fabric impact, tension elimination, and pile direction correction, while allowing for longer drum lengths and higher operating speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a circular or elliptical drum structure is used, then the drum can perform continuous rotational motion and expand fabric width, but it cannot provide effective beating action to eliminate fabric tension and soften the fabric
Solution Approach 1:
The drum surface is segmented into multiple horizontal bars instead of a continuous circular or elliptical surface. These bars are arranged at specific intervals to create discrete striking points that provide effective beating action while maintaining rotational motion capability
Solution Approach 2:
Different parts of the drum structure serve different functions: the horizontal bars provide localized beating action at specific intervals, while the overall drum structure maintains continuous rotational motion. The bars are positioned to create optimal striking zones without compromising the continuous operation of the drum
2Reliability
If a beater cylinder is used to provide beating motion, then fabric tension can be eliminated, but the drum cannot perform expanding activities on the fabric
Solution Approach 1:
The drum structure is designed to perform multiple functions simultaneously: the horizontal bars provide beating action to eliminate fabric tension, while the overall drum rotation and bar arrangement also enable fabric expansion. This multi-functional design eliminates the need for separate beater cylinders and expanding drums
3Volume of moving object
If mechanical or pneumatic mechanisms are used to apply distortion and bulking, then volume and touch can be provided to fabric, but expanding effect is not achieved and faults form at folding parts
Solution Approach 1:
The drum uses a curved rotational structure with horizontal bars that naturally guide fabric through bending and folding motions during rotation. This curved path provides volume and softness to the fabric while avoiding sharp creases or faults that would occur with straight mechanical distortion mechanisms
4Productivity
If prior art drum structures are used, then basic finishing operations can be performed, but long drum lengths and high operating speeds required for wide products cannot be achieved
Solution Approach 1:
The drum structure is divided into multiple horizontal bars rather than a solid continuous structure. This segmentation reduces the overall weight and moment of inertia of the drum, enabling higher operating speeds while maintaining sufficient structural strength through the strategically positioned bars
Solution Approach 2:
The horizontal bars are arranged at specific asymmetric intervals optimized for the fabric processing requirements. This asymmetric arrangement allows the drum to achieve both the necessary structural strength for long drum lengths and the reduced mass required for high operating speeds
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
The drum system achieves superior softness, clearer printing patterns, and increased frictional resistance by enhancing the beating effect, ensuring effective tension elimination, pile correction, and processing wider products with improved efficiency and strength.
Implementation Method 1
horizontal bars having adjusted intervals between thereof according to process requirements cause extra bending among the bars by giving multiple linear strikes to the fabric
Implementation Method 2
a helical wrap surrounding the body at certain intervals... increasing the frictional resistance of the products
Data Source
Figure 1
AI summary
The invention relates to a drum (10) to be used in textile finishing operations, comprising a body (11) and a helical wrap (13) surrounding said body (11) from the middle part to the ends thereof. The drum (10) comprises a plurality of bars (112) arranged at certain intervals determined according to the requirements of the process.