Feeding Assembly for Automatic Flexographic Plate Loading

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Solution Overview

Problem

Current flexographic printing systems require manual intervention for loading flexographic plates onto pin bars, leading to increased costs, reliability issues, and operational risks due to the need for manual hole-piercing and alignment.

Innovation Solution

A feeding assembly that automatically connects a flexographic plate to a pin bar and loads it into a treatment station, eliminating the need for manual intervention by using handling and punching units to align and secure the plate with the pin bar, allowing for continuous and reliable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual intervention is used to load flexographic plates onto pin bars, then operational flexibility is maintained, but operational costs increase and reliability decreases

Engineering Contradiction:
Improveloading reliabilityVSAvoidautomatic loading
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The system performs self-service by automatically punching holes in the plate, inserting pins into the holes, and securing the plate to the pin bar without human intervention. The control unit coordinates these operations autonomously based on detection of plate presence and positioning

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations with an automated mechanical system comprising a punching unit with movable punching elements, a pin insertion mechanism, and a control unit that coordinates these components to perform loading operations automatically

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

2Productivity

If manual hole-piercing and alignment is performed, then adaptability to different plates is maintained, but operational speed decreases and human error risk increases

Engineering Contradiction:
Improveloading speedVSAvoidpunching and alignment mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The loading process is segmented into distinct operational phases: hole punching, pin insertion, and plate securing. Each phase is handled by specialized components (punching elements, pin insertion mechanism) that work in sequence under control unit coordination

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary actions by pre-positioning the punching elements and pin insertion mechanism in ready states before plate arrival. The control unit pre-coordinates the sequence of operations so that each action is prepared in advance, enabling rapid automatic loading without manual intervention

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3401734B1Feeding assembly for loading a flexographic plate in a treatment station
Publication Date: 2022.04.20 SASU VIANORD ENG
  • EP3401734B1 patent drawingFigure 1
  • EP3401734B1 patent drawingFigure 2~3
  • EP3401734B1 patent drawingFigure 4~5

AI summary

The present invention relates to a feeding assembly (1) for automatically loading a flexographic plate (5) in a treatment station (7). The assembly according to the invention comprises a punching unit of said plate (5), handling means (5) for moving the flexographic plate from a loading surface to said punching unit and from said punching unit to a housing site in which a pin bar (14) which can be connected to said plate (5) is arranged. According to the invention, the handling means are configured to connect the plate (5) to said bar automatically and to move the bar, at the end of such a connection, to a predetermined position in which it can be coupled to a treatment system (77) of said treatment station.