Wire Container Lid Deflection Guide for Tension Reduction

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Solution Overview

Problem

Existing wire feeding systems for welding applications face issues with residual wire tension leading to tangling and jamming, especially with aluminum wires, due to the twist-free winding process, which can cause costly production downtime and quality issues.

Innovation Solution

A wire container lid with a wire outlet guide featuring two ring walls and a deflection space between them, allowing the wire to sidewardly deflect and swing, reducing tension accumulation by increasing the distance between the wire coil and the conduit entrance, and a shiftable design for transport and welding operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the wire is paid out from a stationary pack using twist-free winding, then productivity is improved and shop floor space is reduced, but residual wire tension accumulates causing tangling and jamming

Engineering Contradiction:
Improvewelding productivityVSAvoidwire payout reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies the dynamics principle by making the container rotatable about its vertical axis. This rotational movement dynamically compensates for the residual wire tension that accumulates during payout from a stationary pack, preventing wire tangling and jamming while maintaining the productivity benefits of twist-free winding.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies preliminary action by pre-positioning the wire guide at an offset from the container's central axis. This offset positioning is predetermined during container design and preparation, enabling the wire to be guided along an optimal path that prevents tension accumulation before it can cause tangling or jamming during the welding operation.

Inventive Principle:
Principle #10Preliminary action

2Force

If a wire guide is positioned close to the container to reduce tension, then wire tension is reduced, but the wire guide interferes with the wire coil during payout

Engineering Contradiction:
Improvewire tensionVSAvoidwire payout smoothness
Core Design Contradiction:
ForceVSEase of operation

Solution Approach 1:

The rotatable container design allows the wire guide to maintain an optimal dynamic relationship with the wire coil during payout. As the container rotates, the wire guide naturally follows the wire's path, maintaining close proximity for tension reduction without causing interference with the coil structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The wire guide acts as an intermediary element between the wire coil and the external environment. By positioning it at an offset from the container center, it mediates the wire payout process, guiding the wire smoothly while maintaining sufficient distance to avoid coil interference and close enough to reduce tension effectively.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the wire guide extends into the container interior to guide the wire, then wire guidance is improved, but visual access to the wire is blocked

Engineering Contradiction:
Improvewire guidanceVSAvoidvisual access to wire
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The wire guide is designed with a transparent wall that acts as a flexible shell, allowing visual access to the wire while maintaining the guidance function. The transparent material enables operators to observe the wire's path and status inside the container without compromising the structural integrity or guidance capability of the wire guide.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP3141506B1Wire container lid, wire container and wire feeding system
Publication Date: 2018.09.26 SIDERGAS SPA
  • EP3141506B1 patent drawingFigure 1
  • EP3141506B1 patent drawingFigure 2
  • EP3141506B1 patent drawingFigure 3

AI summary

A wire feeding system comprises a wire container including a box (10) having an open upper side, and a wire container lid (18) closing the upper side. The wire container lid (18) includes a front wall (20) having an opening through which wire is to be paid off. A wire outlet guide is attached to the front wall (20). The wire outlet guide (50) comprises an upper and a lower hole for receiving the wire (34), the upper and lower holes being defined by a upper ring wall (58) and an lower ring wall (52), respectively, and being distanced from each other in a wire feeding direction. A lower ring wall (52) limits sideward movement of the wire (34) and allows contact with the wire (34). The holes have a fixed position relative to the front wall (20), and a deflection space (78) bridges the distance between the holes for allowing sideward deflection and swing of the wire (34) between the ring walls (52, 58).