Core-less Yarn Winding Machine Eliminates Bobbin Complexity
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Solution Overview
Problem
Current yarn winding processes for sewing and embroidery machines using bobbins are inefficient, costly, and prone to quality issues due to faulty winding and frequent machine stops, leading to decreased productivity and increased costs.
Innovation Solution
A core-less shuttleless yarn winding machine that winds yarn directly onto a shaft without a bobbin, utilizing a winding group with a diameter-density control wheel and traverse mechanism to ensure uniform winding, reducing the need for additional winding apparatuses and minimizing bobbin-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If yarn is wound onto a bobbin, then the lower yarn can be provided to the sewing and embroidery machine, but additional bobbin costs are incurred and quality problems occur due to faulty winding
Solution Approach 1:
The invention removes the bobbin from the system entirely, extracting the problematic component that causes quality issues and additional costs. The yarn is wound directly onto a spool without using a bobbin, eliminating the source of faulty winding and structural failures mentioned in the patent.
Solution Approach 2:
The invention creates a simplified alternative to the traditional bobbin system by using a spool-based winding mechanism. This copying approach replaces the complex bobbin structure with a simpler spool that achieves the same functional goal of storing and providing yarn without the associated problems.
2Productivity
If additional winding apparatuses are used for winding to the bobbin, then the winding process can be completed, but extra costs are incurred and efficiency is reduced due to additional process steps
Solution Approach 1:
The invention extracts and removes the additional winding apparatuses from the system. By eliminating the need for separate bobbin winding equipment, the patent reduces the number of process steps and additional costs while maintaining the ability to complete the winding operation.
Solution Approach 2:
The invention merges the winding function directly into the spool mechanism, combining what were previously separate operations (winding onto bobbin, then transferring to spool) into a single integrated process. This consolidation eliminates additional apparatuses and improves efficiency.
3Quantity of substance
If bobbins are used with determined yarn quantity, then the yarn can be wound, but the number of stops and replacement time increase due to lower yarn ending
Solution Approach 1:
The invention implements a dynamic yarn supply system where the spool can be continuously replaced or reconfigured without stopping the machine. The flexible spool design allows for continuous operation by enabling quick changes in yarn quantity configuration, eliminating the rigid stop-and-replace cycle associated with bobbins.
Solution Approach 2:
The invention ensures continuous useful action by enabling uninterrupted yarn supply. The spool-based system allows for continuous winding and yarn feeding without the mandatory stops required for bobbin replacements, maintaining productive operation throughout the yarn quantity cycle.
4Quantity of substance
If the volume of the slot of the bobbin and volume of its bearing are removed, then the yarn quantity can be increased, but the structural complexity of the winding machine increases
Solution Approach 1:
The invention extracts the problematic bobbin structure with its slot and bearing components entirely from the system. By removing this complex structural element, the patent achieves increased yarn quantity capability while the overall machine structure remains simpler due to the elimination of the extracted components.
Data Source
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AI summary
The invention is related to a core-less yarn winding machine (10) that comprises a winding group (20) having a winding shaft (23) on which the yarn obtained from the bobbin is wound and consists of a winding group body (21) that in order to realize the winding of the yarn on said winding shaft (23) moves the winding shaft (23) forwardly and moves the winding shaft (23) backwardly after the winding process is completed; a winding control center (50) having a diameter-density control wheel (55) that compresses the wound yarn underneath together with the start of the winding process; a yarn transfer group (60) having a primary forming lateral surface (24) and a secondary forming lateral surface (47) in a manner that creates the required winding form and that takes and transfers the wound yarn to the press group (80), and a press group (80) that gives form to this yarn.