Winding Machine Fluid Dispenser for Thread End Adhesion
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Solution Overview
Problem
Existing winding machines inadequately secure the loose thread end on the circumference of the full bobbin during the bobbin change process due to insufficient wetting and superficial fluid application, leading to short-term adhesion and potential unwinding issues.
Innovation Solution
A shape-variable fluid delivery area, such as a flexible brush with a large contact zone, is used to ensure intensive wetting of the final winding, with a hose line connection for continuous fluid supply and a metering pump for controlled fluid application, allowing optimal adaptation to the bobbin surface and avoiding mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure roller is used to apply fluid to the final winding, then the thread end can be pressed against the spool, but the fluid application is superficial and insufficient for long-term adhesion
Solution Approach 1:
The patent employs a porous application device (such as a sponge or absorbent material) that can absorb and retain fluid within its structure. This porous material allows for gradual release of the fluid to the thread end, ensuring intensive and prolonged wetting without requiring large quantities of fluid. The porous structure holds the fluid close to the application point, preventing runoff and ensuring consistent adhesion.
Solution Approach 2:
The application device is designed to be movable and adaptable, allowing it to conform to the curvature of the spool surface. The device can be pressed with varying degrees of force to control fluid transfer, and its position can be adjusted to optimize contact with the thread end. This dynamic approach ensures optimal fluid application regardless of spool diameter or thread positioning.
2Reliability
If a stamp with an absorbent sponge is used to apply adhesive, then the thread end can be crosslinked, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated application device. The device merges the fluid dispensing function with the application function, eliminating the need for separate nozzle and pressure roller components. This unified approach reduces mechanical complexity while maintaining effective fluid application and thread adhesion.
Solution Approach 2:
The application device is designed to automatically adapt to the spool surface and thread position. The porous material self-regulates fluid release based on contact pressure and absorption needs, eliminating the requirement for complex control systems or precise positioning mechanisms. The device performs its function through its inherent material properties rather than complex mechanical control.
3Reliability
If brushes are used to lay the thread end against the final winding, then the thread can be held together, but intensive wetting is not achieved
Solution Approach 1:
The patent replaces traditional brushes with a porous application device that can absorb and retain fluid within its structure. This porous material allows for intensive and prolonged contact with the thread end, ensuring thorough wetting without requiring large quantities of fluid. The porous structure holds the fluid close to the application point, preventing runoff and ensuring consistent adhesion.
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
The solution provides thorough and even wetting of the thread end, creating a robust adhesion to the bobbin circumference, preventing unwanted unwinding during transport and ensuring continuous production without interruptions.
Implementation Method 1
The loose thread end is then wetted and adhered to the final winding
Implementation Method 2
The discharge area is compressible and shape-variable in such a way that it can be pressed onto the loose thread end and adapts its shape to the surface of the full coil
Data Source
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AI summary
The invention relates to a winding machine for winding a thread into spools, having a rotatable spool revolver (2) with two spool spindles (3.1, 3.2) which are mounted so as to protrude. The spool spindles (3.1, 3.2) are guided into an operating region and a changing region in an alternating manner, wherein the spool spindles (13.1, 13.2) interact with a changing device (8) and a pressure roller (5) in order to wind the spool (13) in the operating region. In order to fix a loose thread end (31) to the circumference of a completely wound whole spool (13), an aid device (19) is provided which has a metering dispenser (20) for a fluid in order to wet a final wrapping (29) on the circumference of the whole spool (13). In order to maintain an intensive wetting on the circumference of the whole spool (13), the aid device (19) according to the invention has a brush which interacts with the fluid dispenser (20), wherein the brush wetted with a fluid can be guided on the circumference of a final wrapping (29) of the whole spool (13).