Offset Deviating Rollers for Sheet Transport Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing roller storage systems for sheet-type objects, such as bank notes, face issues with reliable guidance and holding during transport, leading to potential detachment and jams, which disrupt the automated depositing and dispensing process.
Innovation Solution
The roller storage system addresses this by offsetting the first and second deviating rollers in the direction of transport, ensuring that sheet-type objects pass through both rollers sequentially, with the films being in close adjacency between the deviating rollers and the winding drum, providing continuous contact and clamping force to prevent detachment. Additional features include back-up rollers and disks to enhance guidance and friction, and a U-shaped light guide for object detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first and second deviating rollers are arranged at the same position in the direction of transport, then the structure is simpler, but the sheet-type objects may detach from the films during transport
Solution Approach 1:
The patent applies asymmetry by offsetting the first and second deviating rollers in the direction of transport, so that they are not positioned at the same location. This asymmetric arrangement ensures that sheet-type objects pass sequentially through both rollers with continuous film contact, preventing detachment while maintaining a relatively simple structure.
2Reliability
If the distance between the two deviating rollers is increased, then the overall size of the system is reduced, but the guidance path length is shortened reducing contact time
Solution Approach 1:
The patent utilizes spatial arrangement in multiple dimensions by positioning the deviating rollers offset in the direction of transport while maintaining close proximity in the perpendicular direction. This dimensional arrangement creates an extended guidance path that ensures sufficient contact time without significantly increasing the overall system volume.
3Reliability
If the films are arranged far apart from the deviating rollers, then the system allows easier object insertion, but the clamping force on objects is reduced
Solution Approach 1:
The patent applies local quality by ensuring that the films are in close adjacency to the deviating rollers at the critical guidance points, creating strong clamping force where needed. The film arrangement is optimized locally at the roller contact zones while maintaining overall system functionality for easy object insertion.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration ensures reliable and uninterrupted transport of sheet-type objects, minimizing the risk of detachment and jams, allowing for efficient and automated handling of objects between the deviating rollers and the winding drum, thereby maintaining system operation.
Implementation Method 1
The path length and the period for which the edge of an object is at least indirectly in contact with one of the two deviating rollers is dependent on the distance over which the first and second film are in direct or indirect contact with the deviating roller
Data Source
AI summary
A roller storage system for storing sheet-type objects, in particular bank notes, is proposed, comprising a first film drum (3), which can be rotatably driven by a motor, with a first strip-shaped film (7) as a storage strip, comprising a second film drum (4), which can be rotatably driven by a motor, with a second strip-shaped film (11) as a cover strip, and comprising a winding drum (1), which can be rotatably driven by a motor. The films (7, 11), for the reception of the sheet-type objects (20), can be wound from the two film drums (3, 4) onto the winding drum (1) and, for the dispensing of the sheet-type objects (20), can be wound from the winding drum (1) onto the two film drums (3, 4). A first deviating roller (9) between the first film drum (3) and the winding drum (1) serves for the diversion of the first film (7). A second deviating roller (13) between the second film drum (4) and the winding drum (1) serves for the diversion of the second film (11). The second deviating roller (13) is here arranged offset relative to the first deviating roller (9) in the direction of transport of the films (7, 11).