Welding Wire Sheave Shaping for Low-Pull Bulk Feed

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Solution Overview

Problem

Existing wire shaping devices for welding wire fail to provide robust and reliable results, often requiring increased pull force and additional components like feed motors, leading to higher costs and equipment disruptions due to the wire's coiled shape and inherent twist.

Innovation Solution

A wire shaping device with rotatable sheaves and rollers that guide the welding wire along a substantially level path, reducing the need for mounting at the bulk container and minimizing required pull force, featuring a mounting plate for secure positioning and flexible conduits to manage the wire's shape and direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the wire shaping device is mounted at the bulk container location, then the wire can be shaped early in the feeding process, but the required pull force increases and component wear increases

Engineering Contradiction:
Improvewire shaping effectivenessVSAvoidrequired pull force
Core Design Contradiction:
ReliabilityVSForce

Solution Approach 1:

The wire shaping device performs the shaping action in advance, near the bulk container, so that the wire is already shaped before entering the welding equipment. This preliminary action ensures consistent wire shape throughout the feeding process, preventing coiling and directional deviations that would otherwise require additional corrective measures later.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the wire shaping device is mounted at the bulk container location, then the wire can be shaped early, but the device complexity and initial cost increase due to requiring a feed motor

Engineering Contradiction:
Improvewire shaping effectivenessVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wire shaping device utilizes the existing wire feeding mechanism's pull force to drive the shaping action. The wire itself, as it is pulled from the bulk container, provides the necessary force to rotate the sheaves and rollers through its tension and movement, eliminating the need for a separate feed motor or complex drive system.

Inventive Principle:
Principle #25Self-service

3Productivity

If the wire shaping device increases pull force to remove wire from bulk container, then the wire can be fed reliably, but equipment disruptions and repair needs increase

Engineering Contradiction:
Improvewire feeding reliabilityVSAvoidequipment disruption frequency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The wire is shaped for its entire length early in the feeding process, near the bulk container. This preliminary shaping ensures that no sections of the wire retain coiled configurations that could cause directional deviations or equipment disruptions later during welding operations.

Inventive Principle:
Principle #10Preliminary action

4Ease of operation

If a feed motor is added to assist wire removal, then the wire feeding process is improved, but the operation costs and initial cost increase

Engineering Contradiction:
Improvewire feeding easeVSAvoidoperation costs
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The wire shaping device is designed to be driven by the wire's own movement and tension as it is pulled from the bulk container. The existing feeding mechanism provides sufficient force to rotate the sheaves and rollers through the wire's natural tension, eliminating the need for additional motors or energy-consuming drive systems.

Inventive Principle:
Principle #25Self-service

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 ensures a consistent and desirable wire shape, reducing equipment disruptions and operational costs by allowing the wire shaping device to be located adjacent to the welding equipment, with lower required force for wire feeding and improved reshaping consistency.

Implementation Method 1

as the wire rotates along an outer circumferential surface of the first rotatable sheave, the wire passes between the outer circumferential surface of the first rotatable sheave and the first roller

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS11541474B2Wire shaping device for bulk packaged welding wire
Publication Date: 2023.01.03 ALCOTEC WIRE
  • US11541474B2 patent drawing
  • US11541474B2 patent drawing
  • US11541474B2 patent drawing

AI summary

A wire shaping device for shaping a welding wire stored in a bulked storage container shapes the welding wire by flexing of the welding wire as it is drawn around sheaves. The wire shaping device can be located immediately adjacent to a wire feeding device of the welder. In use, the wire shaping device may include an inlet port for receiving the wire, a first rotatable sheave for receiving the wire from the inlet port, the first rotatable sheave being rotatable in a first direction; a second rotatable sheave for receiving the wire from the first rotatable sheave, the second rotatable sheave being rotatable in a second direction opposite of the first direction; and an outlet port for receiving the wire from the second rotatable sheave. The wire shaping device may also include a mounting plate and first and second rollers operatively associated with the first and second sheaves, respectively.