Winding Apparatus with Electric Cam Orbital Compensation

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Solution Overview

Problem

Existing winding apparatuses for electric energy accumulating devices face challenges in achieving regular and uniform material advancement due to non-circular winding cores, leading to oscillations and tension variations, which affect the quality and performance of the devices.

Innovation Solution

A winding apparatus with a non-circular core that utilizes independent orbital compensation and winding motions driven by two electric cams, programmed to maintain constant material position and speed at the core entrance, reducing oscillations and ensuring uniform tension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a non-circular winding core is used, then the adaptability for different core shapes is improved, but the material advancement regularity deteriorates due to oscillations and tension variations

Engineering Contradiction:

Improveadaptability for different core shapesVSAvoidmaterial advancement regularity

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies dynamics by making the winding core rotatable around a rotation axis that itself performs an orbital compensation motion. This dynamic configuration allows the core to adapt to different shapes while the orbital motion compensates for the irregularities caused by non-circular sections, maintaining regular material advancement and uniform tension throughout the winding process.

Inventive Principle:

Principle #15Dynamics

2Manufacturing precision

If independent orbital compensation and winding motions are implemented, then the material position and speed consistency is improved, but the device complexity increases due to two electric cams

Engineering Contradiction:

Improvematerial position and speed consistencyVSAvoiddevice complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the winding motion into two independent components: orbital compensation motion and rotational winding motion. Each component is controlled by a separate electric cam, allowing precise independent control of material position and speed while maintaining manageable system complexity through functional decomposition.

Inventive Principle:

Principle #1Segmentation

3Manufacturing precision

If two electric cams are used to control independent motions, then the winding precision is improved, but the ease of manufacture deteriorates

Engineering Contradiction:

Improvewinding precisionVSAvoidease of manufacture

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent replaces complex mechanical linkages with electric cams that can be programmed with specific motion laws. This substitution maintains high winding precision through programmable orbital compensation and rotational motions, while simplifying manufacturing compared to traditional mechanical transmission systems.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3486202B1Winding apparatus and method

Publication Date: 2022.11.23 MANZ ITAL

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AI summary

It is described a winding apparatus for wrapping a material around a core (9) of flat shape that rotates around a rotation axis rotating in its turn with a circular trajectory, controlling the laws of motion both of the core (9) rotation around its axis and of the circular trajectory of its rotation axis, motor driven independently by means of electric cams, such as to cancel the variations of position and speed of the material at the entrance of the core (9). The winding apparatus is used for producing electric energy accumulating devices.