Sensor-Based Dividing Rod Positioning in Sample Warping Drums
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Solution Overview
Problem
The existing sample warping machines face challenges in maintaining accurate positioning of dividing rods during high-speed rotation and rapid braking, leading to potential misalignment and errors in thread placement, which can result in faulty pattern warps.
Innovation Solution
A sensor arrangement is provided to detect the angular position of dividing rods on the warping drum's circumference, allowing for precise control of catch hooks and thread guides, and optionally connected to a warning or control device to correct deviations, ensuring accurate positioning and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the warping drum is braked quickly to stop thread breakage, then the thread breakage can be addressed promptly, but the dividing rods leave their position and are no longer arranged at the intended angular position
Solution Approach 1:
A sensor arrangement continuously detects the angular position of the dividing rods on the warping drum circumference and provides feedback to the control device. This feedback loop enables the system to monitor positioning status in real-time and respond to any deviations caused by rapid braking or other disturbances.
Solution Approach 2:
The patent replaces purely mechanical positioning reliance with an sensor-based detection system. Instead of depending solely on mechanical attachment to maintain dividing rod position during rapid braking, the system uses sensors to detect actual position and controls thread guides accordingly, substituting mechanical certainty with sensor-based control.
2Productivity
If the warping drum rotates at higher speeds to increase productivity, then the production rate increases, but the positioning control of catch hooks and thread guides becomes more difficult
Solution Approach 1:
The sensor arrangement provides continuous feedback on dividing rod angular position to the control device, enabling precise synchronization of thread guide movements with the rotating warping drum at high speeds. This feedback mechanism ensures accurate thread placement despite increased rotational velocity.
Solution Approach 2:
The patent replaces mechanical timing and positioning mechanisms with sensor-based detection and control. By using sensors to detect the actual angular position of dividing rods and controlling thread guides accordingly, the system achieves precise thread placement at higher rotational speeds where mechanical control would be insufficient.
3Stability of the object's composition
If the dividing rods are attached non-rotatably to the warping drum to maintain position, then the positioning is stable during normal operation, but the dividing rods cannot be easily adjusted or repositioned
Solution Approach 1:
The patent creates a dynamic positioning system where dividing rods can be selectively positioned at different angular locations. The sensor arrangement enables the system to detect and respond to position changes, allowing the dividing rods to be repositioned when needed while maintaining stability during normal operation. This dynamic capability allows adaptation to different warp patterns and requirements.
Data Source
AI summary
The sample warping machine (1) has a warping drum (2) that is connected with a winding drive (3). A yarn guide unit (6) is movably connected in parallel to the axis of the warping drum. Several attachment rods (9) are attached to the peripheral surface of the warping drum. A sensor arrangement (11) is arranged for detecting the positions of the attachment rods attached to the peripheral surface of the warping drum. The sensor arrangement is arranged opposite to the end surface of the warping drum.