Rotating Reel Unwinding Module for Continuous Splicing
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Solution Overview
Problem
Current methods for unwinding and splicing reels of flexible material articles are inefficient due to the downtime required for replacing empty reels, leading to loss of productivity in downstream machines.
Innovation Solution
A method and module that automate the process by rotating reels between unwinding and reloading stations, allowing simultaneous splicing and reel replacement during unwinding, using a motorized rotating assembly that pivots between stations, and incorporating automatic splicing and cutting devices to minimize human intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual reel replacement is performed at the unwinding station, then the splicing operation can be completed, but the downstream machine experiences downtime and productivity is reduced
Solution Approach 1:
A new full reel is pre-positioned on the rotating assembly at the reloading station before the current reel is exhausted. This preliminary positioning allows the new reel to be immediately available for splicing when the old reel runs out, eliminating downtime and maintaining continuous productivity of the downstream machine.
Solution Approach 2:
The rotating assembly acts as an intermediary mechanism between the unwinding station and the reloading station. It enables the transfer and positioning of reels without requiring the downstream machine to stop, thereby resolving the contradiction between maintaining productivity and performing necessary reel replacement operations.
2Device complexity
If a single unwinding station is used, then the device configuration is simple, but reel replacement causes process interruption
Solution Approach 1:
The unwinding system is segmented into two functional stations: an unwinding station for active reel dispensing and a reloading station for preparing the next reel. This segmentation allows operations to be decoupled, enabling reel replacement without interrupting the unwinding process and thereby improving reliability while maintaining reasonable device complexity.
Solution Approach 2:
The rotating assembly provides dynamic repositioning capability, allowing the system to switch between unwinding and reloading stations as needed. This dynamic configuration enables continuous operation by seamlessly transitioning between stations, improving reliability without requiring an overly complex fixed multi-station setup.
3Extent of automation
If automated splicing and cutting devices are added, then human intervention is minimized, but the device complexity increases
Solution Approach 1:
The cutting device and splicing device are merged into an integrated automated system at the reloading station. This combination performs both cutting the exhausted reel and splicing the new reel in a coordinated sequence, minimizing human intervention while managing device complexity through functional integration rather than separate independent systems.
Data Source
AI summary
A method, and a module (1) for its implementation, is provided for unwinding and splicing reels (2) of flexible material articles. The method includesunwinding a full reel (2) from an unwinding station (4), the reel being positioned on a rotating assembly (3); and, duringthe unwinding of the reel, positioning a new full reel (2) from a reloading station (5) onto the rotating assembly (3). When the unwound reel is empty, the method includes rotating the rotating assembly (3) to move the empty reel to the reloading station (5) and, simultaneously, the full reel to the unwinding station (4) The method includes splicingthe initial end of the article from the full reel with the final end of the article from the empty reel, and unwind the full reel from the unwinding station (4); andFrom the reloading station (5), removing the empty reel and position a new full reel. The process from step C) may be repeated as many times as necessary.