Winding Needle Restraint for Neat Small-Cell Strip Winding
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Solution Overview
Problem
Existing winding devices for small-sized cells face issues with material strip slippage due to the inability to provide a clamping member on the winding needle, leading to disordered and uneven winding performance.
Innovation Solution
A winding device with a restraining member outside the winding needle gap that fixes the material strip with a preset force less than the winding tension, ensuring neat winding by preventing slippage and adapting to small-sized cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a clamping member is provided on the winding needle to fix the material strip, then the material strip can be prevented from sliding and wound neatly, but the winding needle size must be large enough to accommodate the clamping member, making it infeasible for small-sized cells
Solution Approach 1:
The clamping function is extracted from the winding needle and implemented by a separate restraining member positioned outside the winding needle gap. This allows the winding needle to remain small for miniaturized cells while the restraining member provides the necessary clamping force on the material strip protruding from the gap.
Solution Approach 2:
A restraining member is introduced as an intermediary component between the material strip and the winding needle. This mediator applies a preset fixing force to the material strip protruding from the winding needle gap, preventing slippage during winding without requiring modification to the winding needle itself.
2Manufacturing precision
If the restraining force is increased to prevent material strip slippage, then winding neatness is improved, but the material strip may be damaged
Solution Approach 1:
The restraining member is designed to apply a preset fixing force that is specifically calibrated to be less than the winding tension. This parameter optimization ensures the material strip is held firmly enough to prevent slippage and achieve neat winding, while remaining gentle enough to avoid damaging the material strip.
3Volume of moving object
If the winding needle is made small for miniaturized cells, then cell size is reduced, but the inability to provide a clamping member causes material strip slippage and disordered winding
Solution Approach 1:
The winding system is segmented into distinct functional components: the small winding needle for miniaturized cell operation and a separate restraining member for material strip control. This segmentation allows each component to be optimized independently - the winding needle for small size and the restraining member for effective clamping.
Solution Approach 2:
The restraining member acts as an intermediary that compensates for the absence of a clamping member on the small winding needle. By positioning outside the winding needle gap and applying preset force to the protruding material strip, it enables effective material control on miniaturized winding needles.
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 restraining member ensures neat winding and improves performance by preventing material strip slippage, allowing for efficient winding of small-sized cells without damaging the material strip.
Implementation Method 1
the adsorption member is configured to adsorb and fix the material strip protruding from the winding needle gap
Implementation Method 2
the pressure roller is configured to press the material strip protruding from the winding needle gap onto the winding needle so as to fix the material strip by pressing
Data Source
AI summary
The disclosed subject matter provides a winding device that includes a material-placing mechanism, a mounting table, a winding member and a restraining member, wherein the material-placing mechanism is configured to convey a material strip; the winding member includes a winding needle base and a plurality of winding needles provided on the winding needle base, the winding needle base is rotatably provided on the mounting table, with a winding needle gap formed between the plurality of winding needles, such that the material strip passes through; the restraining member is provided outside the winding needle gap and configured to fix the material strip protruding from the winding needle gap with a preset force F1, the winding needle base is configured to drive the winding needle to rotate with a winding tension F2, and F1 is less than F2.