Automatic Roll Replacement With Spare-Shaft Transfer
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Solution Overview
Problem
Existing automatic roll replacing devices in battery manufacturing have complex structures and occupy large spaces due to the need for two unwinding mechanisms that are on standby for each other.
Innovation Solution
An automatic roll replacing device that utilizes a spare material shaft and a material pushing member to transfer a spare material roll to the unwinding shaft, eliminating the need for two sets of unwinding mechanisms, thereby simplifying the structure and reducing space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two unwinding mechanisms are provided for mutual standby, then reliability of roll replacement is improved, but device complexity and occupied space increase
Solution Approach 1:
The unwinding mechanism is designed to perform multiple functions: it serves as the active unwinding mechanism during normal operation and automatically becomes the standby mechanism when needed. The spare material shaft can rotate to different positions to either feed spare material or receive the used material roll, eliminating the need for two separate unwinding mechanisms while maintaining reliability
Solution Approach 2:
The spare material shaft is designed to be dynamically reconfigurable, capable of rotating between a first position (for feeding spare material) and a second position (for receiving used material roll). This dynamic positioning allows the same hardware to serve different functional roles based on operational needs, reducing overall system complexity while maintaining reliability
2Reliability
If two unwinding mechanisms are provided for mutual standby, then reliability of roll replacement is improved, but occupied space increases
Solution Approach 1:
A single unwinding mechanism serves dual purposes by integrating the standby function into the same physical space. The spare material shaft shares the unwinding mechanism's space and can alternately perform feeding and receiving functions, significantly reducing the occupied space compared to having two separate unwinding mechanisms
Solution Approach 2:
The spare material shaft is nested within the same operational envelope as the unwinding mechanism, utilizing the existing spatial framework. By nesting the spare material shaft's functions within the unwinding mechanism's space rather than adding a separate mechanism, the overall occupied space is minimized while maintaining reliability
3Ease of operation
If spare material shaft rotates to material pushing position, then automatic roll transfer is enabled, but device complexity increases
Solution Approach 1:
The spare material shaft's rotatability between different positions (first position for feeding, second position for receiving) provides dynamic adaptability. This single dynamic degree of freedom enables automatic roll transfer functionality without requiring complex multi-component mechanisms, achieving ease of operation with minimal added complexity
Solution Approach 2:
The system enables self-service automatic roll replacement where the spare material shaft automatically positions itself to perform the necessary function. When the material roll needs replacement, the spare material shaft rotates to the appropriate position and the material pushing member automatically pushes the material roll, eliminating the need for manual intervention and complex control systems
Data Source
AI summary
Disclosed in the present application are an automatic roll replacing device, and winding equipment. The automatic roll replacing device includes: a mounting frame; an unwinding mechanism, including an unwinding shaft rotatably connected to the mounting frame around its own axis; a spare material mechanism, including a spare material shaft having a contact end and a material pushing member providing an axial pushing force for a spare material roll on the spare material shaft, the spare material shaft being rotatably connected to the mounting frame around the rotation axis, and the material pushing member being controlled to push the spare material roll on the spare material shaft to transfer to the unwinding shaft; and a strip connection mechanism, provided on the mounting frame, and used for cutting off a work material strip unwound from the unwinding shaft and connecting the cut-off work material strip to the spare material roll.