Warp Stop Motion Detector for Circular Loom
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Circular weaving machines face issues with warp ribbon ends running out, leading to undefined movement and potential damage, as existing warp monitors only indicate the end of a warp ribbon spool without preventing damage or ensuring accessibility for replacement.
Innovation Solution
A warp-tape monitor with a clamping device that holds the warp-tape in place when the sensor piece reaches its rest position, combined with a control device that shuts off the main drive upon detection, allowing for safe replacement and defined positioning of the warp ribbon end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only a warning signal is emitted when the warp ribbon end is detected, then the exhaustion of the warp ribbon spool is indicated, but the warp ribbon can still move in an undefined manner causing damage to the circular loom
Solution Approach 1:
The sensor piece is positioned in advance at the entry point of the circular loom to detect the warp ribbon end before it enters the machine. The clamping device is pre-positioned to immediately secure the ribbon end when detected, preventing undefined movement and potential damage before they can occur.
Solution Approach 2:
The sensor piece acts as an intermediary element between the warp ribbon and the circular loom. It detects the ribbon end and triggers the clamping device, which then secures the ribbon end in a controlled manner, preventing direct contact with moving parts of the loom that would cause damage.
2Ease of operation
If the warp ribbon end is allowed to move freely after spool exhaustion, then the ribbon can be accessed for replacement, but the ribbon end jerks forward and becomes inaccessible
Solution Approach 1:
The sensor piece automatically detects when the warp ribbon end approaches and triggers the clamping device to secure it in place. This self-activating mechanism ensures the ribbon end is reliably positioned without requiring manual intervention, making it consistently accessible for replacement while maintaining position stability.
3Device complexity
If hundreds of warp ribbon spools are monitored manually, then the complexity of the monitoring system is low, but the time to detect spool exhaustion increases significantly
Solution Approach 1:
The manual mechanical monitoring approach is replaced with an automated sensor-based detection system. The sensor piece uses optical or electromagnetic fields to detect the warp ribbon end automatically, eliminating the need for manual inspection of hundreds of spools while keeping the overall system structure relatively simple.
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
Prevents damage to the circular loom by holding the warp-tape end in a defined position for replacement, ensuring the loom's safety and efficiency during the threading process.
Implementation Method 1
a sensor piece (2) which has a passage (3a) for a warp band (K1, K2), can be moved back and forth between a rest position (R), into which it is pretensioned, and a working position (A), into which it can be shifted by a tensile stress (F) of the warp bands (K1, K2) running through the passage (3a)
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The chain fillet guard (1) has sensor pieces (2), which have passages (3a) for chain fillets (K1,K2). The chain fillet clamping units (15,16,17) are clamped between the sensor pieces of the chain fillets, when the sensor pieces are moved in a rest position (R). The passages are formed between the rest position and a working position (A) for the chain fillets in the sensor pieces transversely to a reciprocating movement direction (T). An independent claim is included for a circular weaving machine for guiding multiple chain fillet to a circular reed.