Variable-Diameter Tape Drum for Smooth Adhesive Tape Wrapping
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Solution Overview
Problem
Existing tape wrapping devices face issues with tape adherence to components, leading to blockages and difficulty in separation, which complicates the winding process.
Innovation Solution
A tape wrapping device with a first conveying drum having a variable outer diameter and protrusion structures to facilitate tape conveyance, combined with a binding mechanism for winding, reduces adherence and ensures smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tape is conveyed by the tape wrapping device, then the tape can be delivered to the product, but the tape adheres to the components of the device, causing blockages and difficulty in separation
Solution Approach 1:
The conveying drum is designed with a curved outer peripheral surface instead of a flat surface. This curvature prevents the tape from adhering to the drum surface by reducing the contact area and allowing the tape to naturally detach due to its adhesive properties, thereby solving the blockage and separation difficulties while maintaining continuous tape delivery
2Device complexity
If a conventional conveying drum with constant diameter is used, then the structure is simple, but the tape adheres to the drum surface causing blockages
Solution Approach 1:
The conveying drum features a variable outer diameter along its axial direction, creating different local geometries. The curved outer peripheral surface at specific locations reduces tape adhesion and prevents blockages, while other portions of the drum maintain structural integrity and driving functionality, thus improving reliability without excessive complexity
Data Source
AI summary
A tape wrapping device adapted to wind a tape with an adhesive surface and a back surface on a product includes a seat frame, and a tape conveying mechanism installed on the seat frame and adapted to convey the tape to a standby position. The tape conveying system includes a first conveying drum positioned upstream of the standby position along a conveying direction. An outer contour defining an outer peripheral surface of the first conveying drum has a variable outer diameter along an axial direction and is adapted to convey the tape towards the standby position when its outer peripheral surface is in contact with one of the adhesive surface and the back surface of the tape. A binding mechanism is configured to wrap the tape on the product when the product is bonded to the tape at the standby position.