Wire Feeding Roller with Movable Cylindrical Structure
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Solution Overview
Problem
Current yarn feed mechanisms at crimping rollers are prone to yarn breakage due to excessive pressure, especially when knots or entanglements occur, leading to system shutdowns and production disruptions.
Innovation Solution
A wire feed device with a roller design featuring a cylindrical main body and a peripheral cylindrical structure with a misaligned axis of rotation, allowing for relative movement and reduced pressure when encountering obstacles, thereby minimizing the risk of yarn breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rollers are pressed against each other with high pressure to ensure proper wire feeding, then the wire feeding reliability is improved, but the risk of yarn breakage increases when knots or tangles occur
Solution Approach 1:
The roller comprises a movable cylindrical structure that can shift its axis of rotation relative to the main body when encountering knots or tangles in the yarn. This dynamic adjustment allows the roller to reduce pressure automatically on obstacles while maintaining normal feeding pressure, thus preventing yarn breakage without compromising feeding reliability
Solution Approach 2:
The invention changes the pressure parameter dynamically by allowing the cylindrical structure to move relative to the main body. When a knot is detected, the axis misalignment creates a pressure reduction zone that protects the yarn from breakage, while normal feeding pressure is maintained during regular operation
2Productivity
If the system operates at high processing speed to maintain productivity, then the production output is improved, but the impact of yarn breakage becomes more severe leading to system shutdowns
Solution Approach 1:
The movable cylindrical structure acts as a cushioning mechanism that anticipates potential yarn breakage by automatically reducing pressure when obstacles are encountered. This prevents yarn breakage before it occurs, maintaining system continuity and avoiding shutdowns even at high processing speeds
3Ease of manufacture
If the roller structure is made simple and fixed to ensure ease of manufacture, then the manufacturing cost is reduced, but the ability to adapt to yarn variations is limited
Solution Approach 1:
The roller incorporates a movable cylindrical structure on the main body that can shift its position when encountering yarn variations. This dynamic feature provides adaptability to knots and tangles while maintaining a relatively simple overall structure that remains easy to manufacture
Solution Approach 2:
The cylindrical structure is nested on the main body of the roller, allowing it to move independently while being contained within the overall roller structure. This nested design provides adaptability without significantly increasing manufacturing complexity
Data Source
Figure 1~2
AI summary
The present invention relates to a roller (1) for a wire feeding device, characterized in that it comprises at least: - a cylindrical main body (2) forming a hub intended to be driven in rotation around its axis (4) of symmetry, - a peripheral cylindrical structure (3) forming a roller mounted on the periphery of the main body (2), - a means of driving the cylindrical structure (3) in rotation by the main body (2), the inner diameter of the cylindrical structure being greater than the outer diameter of the main body so as to create a space between the cylindrical structure (3) and the main body (2) to allow a displacement of the cylindrical structure (3) relative to the main body (2) with a misalignment of the axis of rotation of the cylindrical structure (3) relative to the axis of rotation (4) of the main body.