Bar Feed Alignment Mechanism for Automated Bending Lines

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Solution Overview

Problem

Existing machines require manual intervention to align and feed metal bars into bending or cutting units, leading to inefficiencies and safety concerns due to the need for manual handling of extended bars.

Innovation Solution

An automated apparatus comprising a support plane, removal unit with grippers, and a feed unit that aligns and transfers bars from a bundle to a work unit, reducing manual intervention and ensuring precise alignment with the direction of feed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual alignment and feeding of bars is used, then the apparatus structure remains simple, but productivity is reduced and safety issues arise due to continuous manual intervention

Engineering Contradiction:
Improvefeeding speedVSAvoidapparatus structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The bar feeding system performs self-alignment through the passage channel without manual intervention. The bar is inserted into the passage channel which guides it automatically into the correct position, eliminating the need for continuous manual alignment operations while maintaining feeding productivity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The passage channel acts as an intermediary element between the bar source and the bending unit. It receives the bar and automatically aligns it with the direction of feed, serving as a mechanical mediator that eliminates the need for direct manual alignment while maintaining simple apparatus structure

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If manual handling of extended bars is performed, then device complexity remains low, but safety conditions deteriorate due to operator exposure to moving bars

Engineering Contradiction:
Improvesafety conditionsVSAvoidfeeding mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system eliminates manual handling of extended bars by implementing automatic feeding through the passage channel. The bar is guided and positioned automatically, removing the operator from direct contact with moving bars and improving safety conditions without requiring complex feeding mechanisms

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The alignment function is extracted from manual operation and embedded into the passage channel structure. This separates the safety-critical alignment task from human operators, improving reliability while keeping the feeding mechanism relatively simple through structural design rather than complex automation

Inventive Principle:
Principle #2Taking out (Extraction)

3Loss of time

If manual alignment operations are performed for each bar, then the apparatus remains simple, but loss of time increases due to repetitive manual positioning

Engineering Contradiction:
Improvealignment timeVSAvoidfeeding apparatus
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The passage channel enables self-alignment of each bar as it is fed into the system. The bar automatically positions itself along the direction of feed through the guiding structure, eliminating repetitive manual positioning operations and reducing time loss without requiring complex automated feeding apparatus

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The passage channel is pre-configured with the correct alignment geometry before operation begins. This preliminary structural preparation allows each subsequent bar to align automatically without requiring time-consuming manual adjustment, reducing loss of time while maintaining simple apparatus structure

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3691809B1Apparatus and method for feeding bars
Publication Date: 2022.06.29 M E P MASCH ELECTRONICS PIEGATRICI SPA
  • EP3691809B1 patent drawingFigure 1~2
  • EP3691809B1 patent drawingFigure 3
  • EP3691809B1 patent drawingFigure 4~5

AI summary

Apparatus to bend bars, comprising: a bending unit (35) of at least one bar (B, B') and a drawing unit (46) configured to define at least a direction of feed (A) of the bar (B, B') to the bending unit (35). The bending apparatus is provided with: a support plane (11) on which the bars (B, B') to be bent are put; a removal unit (19) to remove at least one bar (B, B') from the support plane (11), a feed unit (33) configured to receive the bar (B, B') removed by the removal unit (19) and to transfer it to the drawing unit (46).