Displaceable Transport Device for Paper Stacking

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Solution Overview

Problem

Existing paper processing systems face inefficiencies in handling different paper formats, requiring manual adjustments and longer transport distances, which lead to increased costs and potential damage to sheets due to the use of conveyor belts.

Innovation Solution

A device with a displaceable transport mechanism that adjusts to paper size, eliminating the need for additional conveyor belts between the feed and transport devices, using rollers that engage only during transport to minimize contact and prevent smearing, and incorporating a storage area with stationary guide belts for precise positioning and shortening the transport path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If conveyor belts are used to transport paper sheets, then the sheets can be conveyed over long distances, but the sheets are exposed to smearing and abrasion

Engineering Contradiction:
Improvetransport distanceVSAvoidsmearing and abrasion
Core Design Contradiction:
Length of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent removes the conveyor belt from the system entirely, extracting the harmful transport element that causes smearing and abrasion. Instead, sheets are conveyed directly through free fall and gravity-assisted movement, eliminating contact with moving belt surfaces that could damage the paper.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary storage area that acts as a buffer between the feed device and further transport device. Sheets are temporarily stored in this area, allowing the transport path to be broken into segments and reducing the need for long continuous conveyor belts.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If manual adjustments are made for different paper sizes, then the processing can be customized, but the conversion is delayed and more expensive

Engineering Contradiction:
Improveprocessing customizationVSAvoidconversion delay
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent employs dynamic, adjustable components including a displaceable further transport device that can be repositioned along the transport path, and an adjustable stop that can be moved to accommodate different paper sizes. These dynamic elements allow quick reconfiguration without manual intervention, reducing conversion time and costs while maintaining processing customization.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes physical parameters such as the position of the further transport device and the location of the stop to adapt to different paper formats. By varying these parameters rather than requiring complete manual reconfiguration, the system achieves both adaptability and efficiency.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If the transport route is kept long to accommodate all paper sizes, then all formats can be processed, but the processing speed decreases

Engineering Contradiction:
Improvepaper format accommodationVSAvoidprocessing speed
Core Design Contradiction:
Adaptability or versatilityVSSpeed

Solution Approach 1:

The displaceable further transport device can be dynamically repositioned based on the paper size being processed. For smaller paper formats, the device is moved closer to the feed device, shortening the transport path and increasing speed. For larger formats, it is positioned farther away, accommodating the size while maintaining efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The transport path is segmented into variable sections, with the storage area acting as a buffer zone. This segmentation allows the system to optimize the active transport distance for each paper size, preventing unnecessarily long transport routes while maintaining the ability to process all formats.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If additional conveying devices are provided for different paper sizes, then all formats can be handled, but the device complexity increases

Engineering Contradiction:
Improvepaper size handlingVSAvoidconveying device arrangement
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The further transport device is designed as a universal, multi-functional element that can handle all paper sizes through positional adjustment rather than requiring separate conveying devices for different formats. This single versatile component replaces what would otherwise require multiple specialized devices, reducing overall system complexity.

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

Solution Approach 2:

The displaceable nature of the further transport device allows one component to perform multiple functions across different paper size scenarios, eliminating the need for additional fixed conveying devices and simplifying the overall system architecture.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2507156B8Paper collecting and stacking device
Publication Date: 2015.12.23 KERN AG

AI summary

In an assembly for stacking, grouping, and or further conveying papers, documents, sheets, et cetera in a paper processing device, a feed device (11', 11'') is provided in order to accept papers (17) or documents and to feed said papers or documents to a storage surface (P') for temporarily storing the papers, documents, or sheets. In order to then further feed the stored, stacked sheets or a produced paper stack of one or more sheets to a device for further processing, for example a folding device, enveloping device, or additional grouping device, a device for further transport (13', 13'') is provided. The device for further transport (13', 13'') is movably arranged relative to the feed device (11', 11'') according to the size or the format of the paper to be collected or stacked.