Tape Coil Changeover Assembly With Sliding Unreeling Station
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Solution Overview
Problem
Existing tape coil replacing devices in lithium battery production have complex structures that occupy a large space, hindering equipment miniaturization.
Innovation Solution
A coil replacing device with a simple structure and compact design, featuring an unreeling mechanism with two suction members and a tape connecting mechanism that allows for alternating use of material tapes, enabling efficient coil replacement through a sliding vertical plate and drivers to manage tape cutting and attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an existing tape coil replacing device is used, then coil replacement can be performed, but the structure becomes complex and occupies large space
Solution Approach 1:
The patent combines multiple functions (unreeling, cutting, connecting, and positioning of tape coils) into a single integrated replacing device that operates from one side of the winding machine, eliminating the need for separate devices for each function and reducing overall structural complexity
Solution Approach 2:
The replacing device is designed with multi-functional components that can perform multiple operations: the unreeling mechanism supplies tape, the cutting assembly severes tape, the connecting mechanism joins tape ends, and the positioning system aligns components - all within a single device structure that handles the complete coil replacement process
2Area of stationary object
If an existing tape coil replacing device is used, then coil replacement can be performed, but the space occupation increases
Solution Approach 1:
The device utilizes vertical space by arranging components in the vertical direction rather than only horizontally, with the unreeling mechanism positioned above and feeding tape downward through the cutting and connecting assemblies, effectively using the third dimension to reduce footprint area
Solution Approach 2:
The device employs nested arrangements where smaller functional assemblies (cutting, connecting, positioning) are integrated within or alongside larger structural components, allowing compact packaging of multiple functions in a minimized space envelope
3Productivity
If multiple suction members are used for simultaneous tape preparation, then operational efficiency improves, but air source consumption increases
Solution Approach 1:
The device employs periodic activation of suction members where only one or two suction members are actively engaged at any given time to hold and process tape coils, rather than maintaining continuous suction across all suction members, thereby reducing overall air consumption while still achieving efficient sequential coil replacement
Solution Approach 2:
The device maintains continuous operational efficiency through overlapping operations where while one suction member holds a tape coil for processing, another is preparing the next coil, ensuring uninterrupted workflow without requiring all suction members to operate at full capacity simultaneously
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device achieves efficient coil replacement with a minimal footprint, reducing space occupation and improving operational efficiency by allowing simultaneous preparation and use of spare material tapes, while minimizing air source consumption.
Implementation Method 1
a first unreeling assembly and a second unreeling assembly arranged on the vertical plate in a spaced manner in a first direction, the first unreeling assembly comprising a first suction member, the second unreeling assembly comprising a second suction member, and the first suction member and the second suction member being capable of sucking material tapes
Data Source
AI summary
A coil replacing device. When a first unreeling assembly at an unreeling station finishes unreeling, a fixing suction member can be driven by a first driver abutting against a first suction member clamping a working material tape, a first cutting assembly cuts off the working material tape, and the cut working material tape is sucked by the fixing suction member. Then, a vertical plate slides to make a second unreeling assembly enter the unreeling station, a material tape sucked by a second suction member will also enter the unreeling station as a spare material tape, and the first unreeling assembly will be removed from the unreeling station. The fixing suction member is driven by the first driver to abut against the second suction member, so as to realize coil replacing, and the first unreeling assembly can be loaded with a new material tape to serve as a spare material tape.