Yarn Winding Device Automated Doffing and Guiding Mechanism
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Solution Overview
Problem
The existing yarn winding devices face inefficiencies in restarting the winding process due to the manual operation required to guide yarn from a package through a yarn accumulating device, leading to prolonged production times and reduced efficiency.
Innovation Solution
A yarn winding device equipped with a doffing device that includes a yarn transferring mechanism and a guiding mechanism, allowing automated guidance of yarn from a package to a yarn joining device after passing through the accumulating device, and a suction holding member for efficient yarn handling during type changes and cutting processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operation is used to guide yarn from package through yarn accumulating device, then the structure remains simple, but the time to restart winding is prolonged and production efficiency is reduced
Solution Approach 1:
The doffing device automatically guides the yarn from the package through the yarn accumulating device without operator intervention. The yarn guiding mechanism is integrated into the doffing device, enabling it to perform the guiding function autonomously as part of its standard operation, thus improving productivity while maintaining reasonable structural complexity
Solution Approach 2:
The doffing device is designed to perform multiple functions: it not only removes completed packages but also guides yarn through the accumulating device and assists in yarn joining operations. This multi-functionality eliminates the need for separate manual guiding operations, thereby enhancing production efficiency without proportionally increasing device complexity
2Loss of time
If automated yarn guiding mechanism is added to guide yarn from package to yarn joining device, then the time to restart winding is shortened, but the device complexity increases
Solution Approach 1:
The yarn guiding mechanism is merged with the existing doffing device structure. The guide members are integrated into the doffing device's mechanical components, allowing the same device to perform both package removal and yarn guiding functions. This integration reduces the need for separate automated guiding equipment, thus shortening restart time while limiting the increase in overall device complexity
Solution Approach 2:
Guide members act as intermediaries that facilitate the automatic transfer of yarn from the package through the accumulating device to the yarn joining device. These guide members are strategically positioned within the doffing device structure, enabling automated yarn routing without requiring complex automated handling systems, thereby reducing the time loss while controlling device complexity
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
This configuration automates the yarn joining and type-changing processes, significantly reducing the time required to restart winding and enhancing production efficiency by streamlining the operation and reducing the number of parts involved.
Implementation Method 1
a suction holding member for efficient yarn handling during type changes and cutting processes
Data Source
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AI summary
A yarn winding device (1) includes a winding unit (2) having a yarn joining device (22) and a yarn accumulating device (30) arranged between a yarn supplying section (10) and a winding section (40). The winding unit (2) includes a guiding mechanism (7) that guides a yarn from a package to the yarn joining device (22) after passing the yarn through the yarn accumulating device (30) when the yarn has become discontinuous between the package and the yarn accumulating device (30), and a doffing device (3) includes a yarn transferring mechanism (8) that guides to the guiding mechanism (7) the yarn from the package that is rotating in a reverse direction that is opposite of a direction when winding the yarn when the yarn has become discontinuous between the package and the yarn accumulating device (30).