Winding Head Tape Layout Without In-Head Cutting
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Solution Overview
Problem
Existing winding devices for wrapping elongated bundled items with adhesive tape face issues such as potential damage to the items due to cutting near the bundle, large device dimensions, and high energy consumption, particularly when dealing with items of varying thicknesses.
Innovation Solution
The cutting device is positioned outside the winding head, and the adhesive tape is managed in predetermined lengths within the winding head, with a rewinding unit providing stock rolls for easy tape exchange and a tape pull-off device for seamless transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cutting device is disposed inside the winding head to cut adhesive tape after wrapping, then the adhesive tape can be cut close to the bundled item, but this may lead to incision into the bundled item and requires very large dimensions of the winding head
Solution Approach 1:
The cutting device is extracted from the winding head and disposed outside it. The winding head is reduced to only the components necessary for wrapping (roll with adhesive tape and drive mechanism), while the cutting function is separated and placed in a different location, eliminating the risk of damage to the bundled item.
2Productivity
If the cutting device is disposed inside the winding head, then the adhesive tape can be cut after wrapping, but this leads to very large dimensions of the winding head and high energy consumption for movement
Solution Approach 1:
The cutting device is removed from the winding head structure, significantly reducing the volume and mass of the moving winding head. This allows for faster acceleration and deceleration during movement, reducing energy consumption while maintaining wrapping productivity.
Solution Approach 2:
The wrapping system is segmented into separate functional units: the winding head for applying adhesive tape and a separate cutting device for trimming. This modular approach allows each component to be optimized independently, with the winding head being compact and lightweight.
3Quantity of substance
If the roll contains a large quantity of adhesive tape stock, then the adhesive tape supply is sufficient for multiple portions, but this leads to large dimensions of the winding head and awkward configuration
Solution Approach 1:
The large stock roll is extracted from the moving winding head and placed in a stationary position. The winding head carries only a small roll with adhesive tape for a single portion, dramatically reducing its size and simplifying its configuration while maintaining adequate supply through the external stock roll.
Solution Approach 2:
An intermediary tape feed mechanism is introduced that transfers adhesive tape from the large stationary stock roll to the small moving roll in the winding head. This mediator system allows the winding head to remain compact while still having access to a large quantity of adhesive tape through the external stock supply.
Data Source
AI summary
In a winding device for wrapping an elongated bundled item and method for wrapping a bundled item with an adhesive tape in a winding device for wrapping an elongated bundled item with an adhesive tape, a roll for a predetermined length of adhesive tape is held in the winding head. The predetermined length is dimensioned for one portion of the item to be wrapped. A cutting of the adhesive tape on the bundled item can be avoided hereby.