Winding Unit Bobbin Position Alignment
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Solution Overview
Problem
Existing yarn winding machines face challenges in maintaining consistent unwinding tension and accurate alignment of yarn feeding bobbins of varying shapes and diameters, leading to uneven winding and potential defects in the packaging process.
Innovation Solution
A winding unit equipped with a bobbin holding mechanism, yarn feeding bobbin detection section, and a drive portion, controlled by a controller to oscillate and adjust the position of the yarn feeding bobbin, ensuring accurate alignment with a target position, thereby maintaining consistent tension and preventing defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed balloon regulating unit is used, then the structure is simple, but the positional relationship with yarn feeding bobbins of varying shapes and diameters changes, causing uneven unwinding tension
Solution Approach 1:
The patent applies the dynamics principle by making the balloon regulating unit movable rather than fixed. The unit can be positioned at multiple locations along the yarn path, allowing it to adapt to different bobbin shapes and diameters. This dynamic positioning capability resolves the contradiction by maintaining uniform unwinding tension across various bobbin types while adding only minimal structural complexity through a movable mechanism.
2Manufacturing precision
If manual adjustment of yarn feeding bobbin position is required for each bobbin type change, then alignment accuracy can be maintained, but operator workload increases and productivity decreases
Solution Approach 1:
The patent applies the self-service principle by enabling the balloon regulating unit to automatically adapt to different yarn feeding bobbins. The system self-adjusts to maintain proper alignment and uniform tension without requiring manual intervention for each bobbin type change. This resolves the contradiction by maintaining high alignment accuracy while eliminating the need for repeated manual adjustments, thereby improving productivity.
3Manufacturing precision
If the balloon regulating unit is made movable to adapt to different bobbins, then unwinding tension uniformity improves, but device complexity increases
Solution Approach 1:
The patent applies the dynamics principle by implementing a movable balloon regulating unit that can be positioned at multiple locations. This dynamic design allows the unit to adapt to different bobbin geometries while maintaining a relatively simple structural implementation, resolving the contradiction between improved tension uniformity and increased device complexity.
Solution Approach 2:
The patent applies the universality principle by designing the balloon regulating unit to serve multiple functions: it can regulate balloons for various bobbin types, maintain uniform tension, and adapt to different positions. This multi-functionality reduces the need for multiple specialized components, thereby limiting the increase in device complexity while achieving improved tension uniformity.
4Manufacturing precision
If automated detection and adjustment systems are implemented, then alignment precision and productivity improve, but device complexity and cost increase
Solution Approach 1:
The patent applies the self-service principle through automated detection and adjustment mechanisms that enable the system to independently identify and correct alignment issues. The detection section automatically senses bobbin characteristics, and the adjustment mechanism responds autonomously, improving alignment precision while keeping control system complexity manageable through self-regulating functionality.
Solution Approach 2:
The patent applies the feedback principle by implementing a detection section that monitors bobbin position and characteristics, providing information to the control system. This feedback loop enables automatic adjustment to maintain optimal alignment, improving precision while managing complexity through intelligent control rather than purely mechanical solutions.
Data Source
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AI summary
The invention provides a winding unit (4) capable of performing a satisfactory winding operation by accurately aligning a position of an unwinding side end of a yarn feeding bobbin (21) with respect to a target position regardless of a diameter and/or a shape of the yarn feeding bobbin (21). A winder unit (winding unit) (4) includes a bobbin holding portion (110), a chase portion detection sensor (the yarn feeding bobbin detection unit) (74), a drive portion (200), and a stepping motor controller (102). The bobbin holding portion (110) holds the yarn feeding bobbin (21). The chase portion detection sensor (74) detects an unwinding side end of the yarn feeding bobbin (21) held by the bobbin holding portion (110). The drive portion (200) drives the bobbin holding portion (110) to adjust the position of the unwinding side end of the yarn feeding bobbin (21). The stepping motor controller (102) controls the drive portion (200) to align the position of the unwinding side end of the yarn feeding bobbin (21) with the target position set in advance based on a detection result of the chase portion detection sensor (74).