Preassembled Wire Tray Layout for Custom Metal Mesh Welding

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Solution Overview

Problem

Existing apparatuses for manufacturing metal mesh for prefabricated panels are either complex and expensive or less automated and less productive, failing to efficiently produce made-to-measure mesh with irregular shapes and specular pairs.

Innovation Solution

A method and apparatus that involves a feed assembly, a handling assembly, and a joining assembly to prepare and join longitudinal and transverse wires in a modular configuration, allowing for the production of irregularly shaped metal mesh with high automation and productivity, enabling the creation of specular pairs and reducing labor and material waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If single-phase apparatus is used to manufacture mesh, then productivity and automation level are improved, but device complexity and cost increase

Engineering Contradiction:
ImproveproductivityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The manufacturing process is divided into two distinct phases: a pre-assembly phase where longitudinal and transverse wires are arranged on a tray, and a welding phase where the tray is moved to a welding station. This segmentation allows the complex single-phase apparatus to be replaced with a simpler two-phase system that achieves comparable productivity while reducing device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wires are pre-assembled on a tray in the correct positions before being moved to the welding station. This preliminary arrangement of wires in the desired configuration simplifies the overall manufacturing process and reduces the complexity of the welding apparatus, as the wire positioning is already completed in the pre-assembly phase.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If standard commercial mesh is produced, then manufacturing efficiency is improved, but adaptability to custom shapes and specifications deteriorates

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidadaptability to custom shapes
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The apparatus is designed to be dynamically configurable for different mesh specifications. The pre-assembly tray and wire feeding mechanisms can be adjusted to accommodate various wire dimensions, spacing, and mesh patterns, allowing the system to efficiently produce both standard and custom-shaped mesh without requiring complete reconfiguration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The manufacturing apparatus is designed with universal capabilities to handle multiple types of wire (different materials, diameters, and lengths) and produce various mesh configurations. This multi-functionality allows the same equipment to efficiently produce both standard commercial mesh and custom-shaped mesh for specific applications like prefabricated panels with doors or windows.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If mesh is cut and shaped after production, then adaptability to project requirements is improved, but labor expenditure and material waste increase

Engineering Contradiction:
Improveadaptability to project requirementsVSAvoidlabor expenditure
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The mesh is produced in the final desired shape and size during the manufacturing process itself, rather than being cut and shaped after production. The pre-assembly tray is configured to hold wires in the exact positions needed for the final mesh geometry, eliminating the need for subsequent cutting operations and reducing both labor expenditure and material waste.

Inventive Principle:
Principle #10Preliminary action

4Adaptability or versatility

If two specular mesh are produced by overturning panels, then reinforcement requirements are met, but handling difficulty increases due to panel dimensions and reduced rigidity

Engineering Contradiction:
Improveproduction of specular pairsVSAvoidhandling ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

Instead of producing one mesh and then overturning it to create a specular pair, the apparatus is configured to produce both specular meshes simultaneously or in sequence without requiring physical overturning. The pre-assembly tray and wire feeding system can be adjusted to create mirror-image configurations, allowing both meshes to be produced in their final orientation, thereby eliminating handling difficulties associated with overturning large panels.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentEP4126413B1Method and apparatus for manufacturing mesh, in particular metal mesh for prefabricated panels
Publication Date: 2024.06.05 SCHNELL SPA
  • EP4126413B1 patent drawingFigure 1
  • EP4126413B1 patent drawingFigure 2
  • EP4126413B1 patent drawingFigure 3~3b

AI summary

The method for manufacturing mesh, in particular metal mesh for prefabricated panels, made by joining a plurality of wires, arranged as longitudinal wires (3) parallel and suitably spaced and transverse wires (4) parallel and suitably spaced, provides for feeding in ordered succession the wires intended to become longitudinal (3) and transversal (4) wires on a feed plane (A), by operating in a controlled way means of transport of a feed assembly (10); operating a gripping head (31a, 31b) of a handling assembly (30) to transfer the wires from the feed assembly (10) to a tray (20), releasing them resting on the tray (20) as longitudinal wires (3) and transverse wires (4) in a preassembled configuration; moving the tray (20) in a transport stroke on a transport plane (T), by means of control means, towards a joining station (J); operating a joining assembly (40) to join the longitudinal wires (3) to the transverse wires (4) in the preassembled configuration, thus creating a completed mesh (2).