Gripping Device for Tension-Free Flexible Tape Connection
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Solution Overview
Problem
Existing methods for producing data pages for book-like documents lack efficiency in automated production, particularly in ensuring a tension-free connection of flexible strip materials to data carriers, which affects the opening behavior and durability of the documents.
Innovation Solution
A method and device utilizing a gripping device with independent gripping elements to position and connect a flexible strip material to a data carrier, allowing for a plane-parallel connection and precise tension control, ensuring a secure and durable attachment of the tab to the data carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single gripping device is used to hold flexible tape material, then the device structure is simple, but the tape material cannot be properly stretched and positioned, resulting in tension-free connection issues
Solution Approach 1:
The gripping device is divided into multiple independent gripping elements (first, second, and third gripping elements), each capable of independent movement. This segmentation allows each element to perform specific functions: the first element holds the tape while the second stretches it, and the third positions it against the data carrier, thereby achieving plane-parallel connection without excessive device complexity.
Solution Approach 2:
The gripping elements are designed with independent movability, allowing dynamic adjustment of their positions relative to each other. This dynamic capability enables the system to adapt to material variations and achieve proper tensioning and positioning of the flexible tape material during the bonding process.
2Ease of operation
If the flexible tape material is held taut by gripping elements, then positioning is easier, but the woven fabric material becomes distorted and inconsistent
Solution Approach 1:
The gripping elements can move independently to dynamically adjust the tension state of the flexible tape material. The system transitions from a taut holding state to a stretched-but-relaxed state, allowing the woven fabric to maintain its structural integrity while still being positionable for consistent bonding conditions.
Solution Approach 2:
The system changes the physical state of the flexible tape material from taut to stretched between gripping elements. This parameter change allows the material to be positioned accurately without distorting its woven fabric structure, maintaining material consistency throughout the process.
3Productivity
If automated production is implemented, then productivity increases, but process reliability decreases due to material property variations
Solution Approach 1:
The independently movable gripping elements provide dynamic adaptability in the automated system. Each element can adjust its position to compensate for material property variations in the flexible tape material, maintaining process reliability while enabling automated high-speed production.
Solution Approach 2:
The gripping device automatically adjusts the tension and positioning of the flexible tape material through its independently movable elements. This self-adjusting capability allows the automated system to compensate for material variations without external intervention, maintaining both productivity and reliability.
Data Source
Figure 1~2
Figure 3
Figure 4~9
AI summary
The invention relates to a method and a device for producing a data page (17) for a book-like document (11), in particular a valuable or security document, which comprises a data carrier (24) and a tab (23) made of a flexible tape material (26), which is connected to a connecting area (27) at an edge area (25) of the data carrier (24) forming an overlap area (28) and includes a projecting area (29) in which the flexible tape material (26) is fed by a feeding device (33) to a gripping device (34), which comprises at least a first gripping element (44) and a second gripping element (46), and at least one of the gripping elements (44, 46) can be moved independently of the other.in which the second gripping element (46) grips an end (56) of the flexible tape material (26) held by the first gripping element (44) and is moved into a working position (58) separate from the first gripping element (44) in the longitudinal direction of the tape and is positioned at a distance from the first gripping element (44) which corresponds at least to the length of the tab (23), in which a third gripping element (48) of the gripping device (34) is positioned between the first and second gripping elements (44, 46) and is closed to grip the flexible tape material (26) held between the first and second gripping elements (44, 46) so that the connecting area (29) of the tab (23) protrudes from the third gripping element (48), and in which the protruding connecting area (29) of the flexible tape material (26) is positioned with the third gripping element (48) towards the edge area (25) of the data carrier (24) and connected to the data carrier (24) is inextricably connected. (See Figure 3).