Pivotable Marker Card Printer Layout for Compact High Throughput

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Solution Overview

Problem

Existing printers for printing marker cards with markers for electrical devices are limited by a straight-line arrangement of stations, which results in inefficient space usage and lower printing performance, as they require a long single direction for conveying and lack flexibility in handling directions.

Innovation Solution

A printer with multiple pivotable stations that allow for at least one change in direction during the conveying process, enabling an angled or U-shaped path for marker cards, which reduces the overall length of the printer while maintaining high throughput by using pivotable stations with resilient stops and a conveying system like belt or roller conveyors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a straight-line arrangement of printer stations is used, then the printer structure is simple and easy to manufacture, but the printer becomes extremely long and space-inefficient

Engineering Contradiction:
Improvestructural simplicityVSAvoidprinter length
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The patent applies dimensionality change by transitioning from a one-dimensional straight-line arrangement to a two-dimensional angular or U-shaped layout. The conveying path is arranged at angles (e.g., 90 degrees or 180 degrees) instead of in a straight line, allowing the printer stations to be compactly arranged in a corner or U-shape configuration. This reduces the linear footprint while maintaining all necessary functional stations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent employs dynamic elements including pivotable stations that can rotate between different positions, a movable conveying means that can change direction, and adjustable guides. These dynamic components enable the printer to adapt its configuration between straight-line, angular, and U-shaped arrangements, optimizing space utilization while maintaining manufacturing simplicity.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If multiple changes in direction are implemented in the conveying path, then space efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveprinter footprintVSAvoidhandling device complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent divides the conveying system into multiple independent segments or stations, each capable of independent movement or pivoting. This segmentation allows each section to be optimized independently while collectively achieving the desired angular or U-shaped path, reducing overall system complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent designs universal components that can perform multiple functions - for example, a pivotable station serves both as a conveying station and as a direction-changing mechanism. The conveying means can function both as a transport mechanism and as a positioning device, reducing the need for separate specialized components and thereby reducing overall device complexity.

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

3Manufacturing precision

If pivotable stations with resilient stops are used, then precise alignment is achieved, but the device complexity increases

Engineering Contradiction:
Improvealignment precisionVSAvoidstation mechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent implements self-aligning mechanisms where the resilient stops automatically guide the pivotable stations into their correct positions through elastic deformation and mechanical feedback. The system uses its own components (springs, resilient elements) to achieve precise alignment without requiring external positioning devices or complex control systems, thereby maintaining simplicity while achieving high precision.

Inventive Principle:
Principle #25Self-service

4Productivity

If a long single direction conveying path is used, then the printer can accommodate all functional devices, but the printing performance and throughput are reduced

Engineering Contradiction:
Improveprinting throughputVSAvoidconveying path length
Core Design Contradiction:
ProductivityVSLength of stationary object

Solution Approach 1:

The patent applies dimensionality change to the conveying path, arranging stations in angular or U-shaped configurations instead of linear sequences. This allows the conveying path to fold back on itself, effectively reducing the linear distance markers travel while still accommodating all functional devices (separating device, printing unit, fixing device, output station) in a compact arrangement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3931817B1Printer for printing marker cards with marks for marking electrical devices
Publication Date: 2024.05.22 WEIDMULLER INTERFACE GMBH & CO
  • EP3931817B1 patent drawingFigure 1
  • EP3931817B1 patent drawingFigure 2
  • EP3931817B1 patent drawingFigure 3

AI summary

A printer for printing on sheet-like media made of plastic and/or metal, in particular for printing on marker cards (2) made of plastic and/or metal with marks (3) for marking electrical devices, which has various functional devices (I, II, III, IV), and a device (1) for handling the printable sheet-like media, in particular the marker cards (2) with marks (3) for marking electrical devices, in the printing process, with which the sheet-like media are handled in the printer, in particular conveyed in the printer, wherein they are conveyed onward at least between the functional devices (I, II, III, IV), is distinguished in that the handling device (1) has multiple stations (4a, 4b, 4c, 4d) which are each embodied as receiving and securing devices, each for one sheet-like medium to be printed on, in particular in each case one marker card (2), wherein one or more of the stations (4a, 4b, 4c, 4d) are configured in a pivotable fashion so that they can be pivoted out of a first pivoted position into a second position against a sprung stop (8a, 8b, 8c, 16, 19, 21).