Bobbin Preparation Device Integrating Yarn End Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing bobbin preparation processes for automatic winders are complex and costly, requiring multiple stations and cumbersome devices due to the need to handle bobbins upright and free the yarn end from the bobbin base before rewinding, often involving manual handling and multiple device transfers.
Innovation Solution
A bobbin preparation device and process that uses a plate with a centring spindle and suction mouth to maintain the bobbin upright, with a skein end finder element (hook or brush) to detach and insert the yarn end into the bobbin tube, allowing for integrated operation within the automatic winder system, reducing the need for multiple stations and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple stations and cumbersome devices are used to handle bobbins upright and free the yarn end, then the bobbin preparation can be completed, but the process becomes complex and costly
Solution Approach 1:
The patent combines multiple separate operations (yarn end detection, yarn end freeing, yarn end insertion) into a single integrated station with a multifunctional device. The device includes a detection element to locate the yarn end, a freeing element to release it from the bobbin base, and an insertion mechanism to place it into the bobbin tube, all operating simultaneously at one location rather than requiring sequential transfers between multiple stations.
Solution Approach 2:
The device at the single station performs multiple functions: it detects the yarn end position, frees the yarn end from the bobbin base, and inserts it into the bobbin tube. This multifunctional approach eliminates the need for separate specialized devices for each operation, reducing overall system complexity while maintaining complete bobbin preparation capability.
2Reliability
If manual handling and multiple device transfers are used, then the yarn end can be freed and inserted, but handling time increases and efficiency decreases
Solution Approach 1:
The device enables automatic operation where the detection element locates the yarn end, the freeing element releases it, and the insertion mechanism places it into the bobbin tube without manual intervention. The system serves itself by automatically completing the entire yarn end handling sequence at a single station, eliminating manual handling steps and multiple transfers while maintaining insertion accuracy.
3Productivity
If a single integrated station is used, then handling time is reduced and efficiency improves, but the device complexity increases
Solution Approach 1:
The integrated device is segmented into distinct functional elements: a detection element for locating the yarn end, a freeing element for releasing it from the bobbin base, and an insertion mechanism for placing it into the tube. This segmentation allows each element to perform its specific function efficiently while working in coordination within a single station, reducing the complexity burden compared to multiple separate stations.
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 solution streamlines the bobbin preparation by integrating all necessary operations on a single platform, reducing handling and device transfers, enhancing reliability and output with adaptable cycle parameters for different yarn types and tensions, and improving torque transmission for efficient yarn management.
Implementation Method 1
a suction mouth to detach and insert the yarn end into the bobbin tube
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Device and process for preparing bobbins in an automatic winder, with freeing the skein end from the base of the bobbins, suctioning it and picking it up inside a suctioning mouth, positioning the picked up yarn in a scissors and cutting it to size, and inserting the skein end of the bobbin thus cut inside the tube of the prepared bobbin. Said operations are grouped together in a single work station with the bobbin set to press on a plate carrier, with steps coordinated in their sequence by a dedicated governing unit.