Guide-Roller Winding of Thread Adhesive on Linear Workpieces
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Solution Overview
Problem
Existing techniques face difficulties in easily and reliably winding thread-like adhesive materials around the outer circumferential surfaces of linear workpieces, particularly those with small diameters or irregular shapes.
Innovation Solution
A winding device comprising a bobbin holder and guide rollers with groove portions that facilitate the winding of thread-like adhesive material by integrating the rotation of the bobbin holder and guide rollers around the linear workpiece, ensuring the adhesive material is smoothly guided and tensioned to adhere to the workpiece surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a double-sided tape is attached to the outer circumferential surface of a linear workpiece, then a functional member can be further attached to the outer circumferential surface, but a mechanism for peeling off a release sheet and winding the double-sided tape is required, increasing device complexity
Solution Approach 1:
The patent combines the adhesive layer and the thread-like core material into a single integrated structure. The adhesive layer is formed by coating adhesive material onto the core material, eliminating the need for separate release sheets and peeling mechanisms. This merged structure simplifies the winding device while maintaining the ability to attach functional members to the workpiece surface.
2Ease of operation
If adhesive material is coated on a thread-like core material, then the thread-like adhesive material can be wound around linear workpieces, but a mechanism to prevent the adhesive material from falling off during winding is required
Solution Approach 1:
The patent utilizes the cylindrical curvature of the bobbin around which the thread-like core material is wound. This curved geometry, combined with the adhesive material coating, naturally retains the adhesive material on the core material surface during the winding process, eliminating the need for additional retention mechanisms while facilitating easy winding operation.
Data Source
AI summary
A winding device for winding a thread-like adhesive material around an outer circumferential surface of a linear workpiece includes a bobbin holder holding a bobbin around which the thread-like adhesive material is wound, the bobbin being held rotatably; and a guide roller provided on a path of the thread-like adhesive material between the linear workpiece and the bobbin holder, the guide roller having a groove portion on an outer circumferential surface of the guide roller and allowing the thread-like adhesive material pulled out from the bobbin to be threaded into the groove portion, wherein the thread-like adhesive material is wound around the outer circumferential surface of the linear workpiece by integrally turning the bobbin holder and the guide roller around the linear workpiece.