Staggered Deflection Buffer for Tobacco Web Material

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Solution Overview

Problem

Existing buffer memories for railway-shaped flat material in the tobacco processing industry require large installation spaces to achieve comparable storage capacities, limiting efficient use of space in production environments.

Innovation Solution

A buffer memory design featuring a first rail guide device with deflection devices arranged in a staggered direction and a second rail guide device with deflection devices also in a staggered direction, allowing the flat material to be alternately guided between deflection devices of both guides, thereby increasing storage capacity while reducing installation space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the buffer storage uses a conventional meandering or zigzag pattern between two web guide devices, then a specific length of flat material can be stored, but the installation space becomes relatively large

Engineering Contradiction:
Improvestorage capacityVSAvoidinstallation space
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent introduces a third dimension by stacking deflection devices vertically in multiple levels. Instead of extending the buffer storage horizontally with a long meandering path, the flat material is guided through multiple vertical layers of deflection devices, allowing the same storage capacity to be achieved in a more compact horizontal footprint.

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

Solution Approach 2:

The patent implements nested deflection devices where inner deflection devices are positioned within the space between outer deflection devices of opposing web guide devices. This nested arrangement allows multiple deflection elements to occupy the same horizontal space at different vertical levels, effectively packing more storage capacity into a smaller installation area.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Quantity of substance

If the buffer storage increases installation space to accommodate more deflection devices, then the storage capacity increases, but the space efficiency decreases

Engineering Contradiction:
Improvestorage capacityVSAvoidinstallation space
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent transitions from a two-dimensional horizontal arrangement of deflection devices to a three-dimensional vertical stacking configuration. Multiple deflection devices are arranged at different vertical levels between the opposing web guide devices, enabling the buffer storage to achieve higher storage capacity without proportionally increasing the horizontal installation space.

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

Solution Approach 2:

The buffer storage is segmented into multiple vertical levels or stages, with each level containing deflection devices that handle the flat material at different heights. This segmentation allows the system to accumulate storage capacity through vertical stacking rather than horizontal expansion, improving space efficiency.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4545460A1Buffer store for web-shaped flat material of the tobacco processing industry and method for operating same, machine for the tobacco processing industry and method for operating same
Publication Date: 2025.04.30 KORBER TECHNOLOGIES GMBH
  • EP4545460A1 patent drawingFigure 1
  • EP4545460A1 patent drawingFigure 2~3
  • EP4545460A1 patent drawingFigure 4

AI summary

Buffer storage device (2) for web-shaped flat material (4) of the tobacco processing industry, comprising: a first web guiding device (61) with a plurality of deflection devices (81_1 ... 81_6) arranged side by side in a step direction (S) and a second web guiding device (62) arranged opposite the first web guiding device (61) with a plurality of deflection devices (82_1 ... 82_6) arranged side by side in the step direction (S), wherein the deflection devices (8) of the first and second web guiding devices (61, 62) are arranged offset from each other in the step direction (S), so that the flat material (4) can be guided alternately between a deflection device (8) of the first web guiding device (61) and a deflection device (8) of the second web guiding device (62).The buffer storage (2) is further developed by the fact that the deflection devices (8) each comprise a plurality of deflection elements (9) for deflecting the flat material (4).