Pad Printing Machine Optical Display for Operator Guidance

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Pad printing machine operators face difficulties in efficiently performing manual tasks such as inserting, removing, and checking workpieces and tools due to the lack of clear and accessible information about machine states, leading to increased operational complexity and potential errors.

Innovation Solution

Integration of an optical display system on a work board connected to the machine's control unit, which uses color-coded signals to indicate machine states, such as accessibility of the intake zone and workpiece positioning, to guide operators and facilitate manual operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operations are performed without visual feedback, then operational complexity increases and errors occur, but adding display systems increases device complexity

Engineering Contradiction:
Improvemanual operation easeVSAvoiddisplay system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent uses color-coded LED indicators (green for accessible, red for closed) to provide intuitive visual feedback on machine state. This simple color-change mechanism delivers critical information without complex display hardware, resolving the contradiction between ease of operation and device complexity.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The work board serves as an intermediary surface that integrates the display elements within the operator's natural workspace. By embedding indicators on the work board rather than adding separate display devices, the system provides feedback without increasing overall device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the intake zone is always accessible, then operator convenience is improved, but machine safety and operational control are compromised

Engineering Contradiction:
Improveintake zone accessibilityVSAvoidmachine state control
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system provides real-time visual feedback through color-coded indicators that change based on the actual state of the intake zone. This feedback mechanism allows operators to understand machine state constraints without needing complex interfaces, balancing accessibility with safety through information transparency.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Green LED indicators signal when the intake zone is accessible and safe for operation, while red indicators signal when the zone is closed or restricted. This color-coding system enables operators to make informed decisions about accessibility without compromising safety or requiring complex control interfaces.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP2139687B1Pad printing machine
Publication Date: 2014.12.17 ITW MORLOCK GMBH
  • EP2139687B1 patent drawingFigure 1~2
  • EP2139687B1 patent drawingFigure 3~4
  • EP2139687B1 patent drawingFigure 5

AI summary

A pad printing machine comprising a work board (4). The work board (4) is situated in front of the pad printing machine (2) and fitted with an optical display (12) displaying given operational states of the pad printing machine (2) to an operator (6)