Pot Spinning Machine Yarn Guide Protection
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Solution Overview
Problem
Existing pot spinning machines require special bobbins and complex driving mechanisms to prevent yarn from coiling around the yarn guide, which can cause component damage, and existing solutions are cumbersome and inefficient.
Innovation Solution
A pot spinning machine design that uses a general-use bobbin with a tapered structure and a cutting mechanism driven by a detection sensor to cut the yarn before it coils around the yarn guide, avoiding the need for special bobbins or latching mechanisms by implementing a cutting mechanism that suppresses yarn winding onto the yarn guide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a bobbin with a special structure and latching means is used to prevent yarn coiling around the yarn guide, then yarn winding suppression is improved, but device complexity increases
Solution Approach 1:
The harmful function of the bobbin (preventing yarn coiling through special structure and latching means) is extracted and replaced by a dedicated cutting mechanism. The bobbin returns to a simple cylindrical form, while the yarn guide protection function is transferred to the cutting mechanism that cuts yarn before it can coil around the yarn guide.
Solution Approach 2:
A cutting mechanism is introduced as an intermediary between the yarn supply system and the yarn guide. This intermediary component intercepts and cuts the yarn before it can coil around the yarn guide, preventing the harmful effect without requiring modifications to the bobbin structure.
2Object-affected harmful factors
If a cutting mechanism is introduced to prevent yarn coiling around the yarn guide, then yarn winding suppression is improved, but device complexity increases
Solution Approach 1:
The cutting mechanism is designed to perform multiple functions: it cuts the yarn to prevent coiling around the yarn guide, and also enables clean yarn切断 for subsequent rewinding operations. This multi-functionality justifies the addition of the cutting mechanism while maximizing its utility.
3Object-affected harmful factors
If yarn is cut before coiling occurs, then component damage is prevented, but productivity may decrease due to additional cutting operation
Solution Approach 1:
The cutting mechanism performs preliminary action by cutting the yarn before it has a chance to coil around the yarn guide and cause damage. This preventive cutting is timed to occur just before the harmful coiling would happen, eliminating component damage while maintaining efficient production rhythm.
Solution Approach 2:
The cutting operation is designed to be rapid and integrated into the existing spinning cycle, allowing the process to rush through the cutting action without significant time loss. The cutting mechanism operates quickly to minimize interruption to the overall productivity.
Data Source
Figure 1
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AI summary
A pot spinning machine (1) according to the present invention has a drafting device (10) for drawing out yarn (18), a yarn suction pipe (12) for suctioning the drawn-out yarn (18), a cylindrical pot (15), and a yarn guide (14) for guiding the yarn (18), which is supplied thereto through the yarn suction pipe (12), into the pot (15), the pot spinning machine (1) forming a cake (24) by winding the yarn (18) discharged from the yarn guide (14) around an inner wall (27) of the pot (15). The pot spinning machine (1) includes a detection sensor (11) for detecting behavior of the yarn (18) on a yarn path extending from the drafting device (10) to the yarn suction pipe (12), a cutting mechanism (13) for cutting the yarn (18) midway along a yarn path extending from the drafting device (10) to the inner wall (27) of the pot (15) via the yarn suction pipe (12) and the yarn guide (14), and a control unit (50) that executes control to drive the cutting mechanism (13) when determining that the behavior of the yarn (18) is abnormal on the basis of a detection result from the detection sensor (11).