Oblong Metal Bar Loading Assembly for Precise Automatic Alignment

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Solution Overview

Problem

Existing devices for loading and processing oblong metal elements, such as bars for reinforced concrete, face challenges in ensuring ordered feeding and alignment, particularly for long and irregularly shaped bars, leading to handling difficulties and processing inaccuracies.

Innovation Solution

A loading assembly with a movable selector member and chute system that facilitates precise and automatic selection, alignment, and transfer of oblong elements, optimizing their positioning for subsequent processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual alignment operations are performed by operators, then the bars can be positioned for processing, but the operation becomes very tiring and time-consuming

Engineering Contradiction:
Improveease of bar alignmentVSAvoidtime for positioning operations
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system enables self-service automation where the feeding device automatically performs alignment and loading operations without operator intervention. The selector member and chute system work autonomously to position bars correctly on the transfer seat, eliminating manual labor while maintaining continuous operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical alignment operations are replaced with an automated mechanical system comprising a selector member, chute, and transfer device. This substitution eliminates human physical effort while achieving precise and rapid bar positioning through coordinated mechanical movements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If bars are fed in large numbers, then productivity increases, but alignment becomes more difficult due to tangling

Engineering Contradiction:
Improvenumber of bars fedVSAvoiddifficulty of alignment
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The feeding process is segmented into distinct functional zones: a feeding plane for receiving bars, a selection zone with selector member for individual bar pickup, a transfer zone with chute for guided movement, and a transfer seat for final positioning. This segmentation allows multiple bars to be handled simultaneously without tangling by processing them through separate controlled paths.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The chute acts as an intermediary element between the feeding plane and transfer seat, providing a controlled guiding path that prevents bar tangling. The selector member serves as an intermediary mechanism that individually selects and transfers bars, ensuring orderly feeding even when large numbers of bars are processed.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Extent of automation

If automatic loading is implemented, then manual intervention is reduced, but device complexity increases

Engineering Contradiction:
Improveautomatic loading capabilityVSAvoidcomplexity of loading equipment
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The feeding device is designed as a multi-functional universal system that combines bar receiving, alignment, selection, transfer, and positioning capabilities in a single integrated unit. This universality achieves high automation while controlling complexity by eliminating the need for separate dedicated devices for each function.

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

Solution Approach 2:

Multiple functions previously requiring separate devices or manual operations are merged into a single integrated system. The selector member, chute, and transfer seat work as a combined automated assembly, reducing overall system complexity while achieving comprehensive automatic loading capability.

Inventive Principle:
Principle #5Merging (Combining)

4Manufacturing precision

If bars are positioned precisely for processing, then processing accuracy improves, but positioning operations become more difficult

Engineering Contradiction:
Improveprocessing accuracyVSAvoiddifficulty of positioning
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system achieves self-service precision positioning where the automated mechanism inherently positions bars with the required accuracy for processing. The transfer seat and chute geometry are designed to automatically align bars correctly without requiring difficult manual adjustment operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Difficult manual positioning operations are replaced with an automated mechanical positioning system that uses the selector member, chute, and transfer seat to achieve precise bar alignment and placement. This substitution maintains high processing accuracy while eliminating the operational difficulty of manual positioning.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP4347150B1Loading assembly for oblong, in particular metallic, elements
Publication Date: 2025.07.09 SCHNELL SPA
  • EP4347150B1 patent drawingFigure 1
  • EP4347150B1 patent drawingFigure 2a
  • EP4347150B1 patent drawingFigure 2b

AI summary

The loading assembly for oblong elements, in particular metal elements, includes a movable selector member (11) and a chute (12) associated with the selector member (11). The loading assembly is associated with a transfer seat (5, 50) to collect a number of elements (2) loaded on the chute (12) by means of the selector member (11).