Adhesive Gripping Device With Release Deflection Element
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Solution Overview
Problem
Existing handling devices with adhesion gripping systems face challenges in reliably releasing objects gripped by adhesion tapes, particularly when dealing with various types of objects, including rigid, flexible, and air-permeable materials, without causing damage or contamination.
Innovation Solution
The introduction of a release device with a release deflection element and a release drive unit that allows for a circulating movement of the adhesion tape around the release deflection element, enabling a controlled pulling-away of the tape from the gripped object, ensuring secure repositioning and deposition of objects regardless of their structural constitution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesion tape is used to grip objects, then objects can be firmly held and repositioned, but releasing the objects reliably is difficult without damage or contamination
Solution Approach 1:
Instead of actively peeling or pulling the adhesion tape away from the object (which causes damage), the invention inverts the approach by allowing the tape to be pulled away from itself through the deflection element. The tape is guided around a deflection element that creates a loop, and pulling the tape from the supply side causes it to detach cleanly from the object without direct mechanical stress on the object surface.
Solution Approach 2:
The deflection element acts as an intermediary mechanism between the adhesion tape and the object. It provides a surface for the tape to deflect around, creating a controlled release path that prevents direct contact forces between the tape and object during release. This mediator enables gentle detachment while maintaining firm gripping capability during the holding phase.
2Strength
If adhesion tape is stretched taut for gripping, then firm holding is achieved, but the tape cannot accommodate objects of varying sizes and shapes
Solution Approach 1:
The system transitions from a static, taut tape configuration to a dynamic loop configuration. The deflection element creates a movable loop that can expand and contract, allowing the tape to adapt its shape and size to accommodate different objects. The tape maintains sufficient tension for firm holding while the loop structure provides the flexibility needed for versatility.
Solution Approach 2:
The adhesion tape forms a nested loop structure around the object, with the tape passing through itself to create an overlapping configuration. This nested arrangement allows the tape to conform to the object's geometry while maintaining continuous contact and adhesion, enabling both strong holding and adaptability to various shapes and sizes.
3Productivity
If adhesion tape is continuously used for gripping, then productivity is maintained, but the tape becomes contaminated and loses adhesion effectiveness
Solution Approach 1:
The system implements a disposable tape mechanism where the adhesion tape is supplied from a roll and advanced continuously through the deflection element. Once the tape becomes contaminated or loses adhesion effectiveness, fresh tape is automatically supplied from the roll, eliminating the need to clean or replace the entire system. This enables continuous productivity while maintaining reliable adhesion through constant renewal of the adhesive surface.
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 solution enables reliable and gentle release of objects from the adhesion tape, allowing for precise repositioning and deposition of diverse materials, including textiles, while minimizing wear on the adhesion tape and maintaining effective adhesion characteristics.
Implementation Method 1
at least on one side comprises an adhesion surface and has a longitudinal section, said longitudinal section being passed through a working region of the gripping unit and forming a gripping section, by way of which an object to be repositioned can be gripped and firmly held in a releasable manner in the working region by way of the adhesion action of the adhesion surface
Data Source
AI summary
A handling device which is suitable for repositioning objects has an adhesive gripping device which includes a support structure on which at least one gripping unit is arranged. The gripping unit has an adhesive belt which extends between two holding regions and which, in a working region having a longitudinal portion functioning as a gripping portion, is wound around a release deflection element which is translationally movable relative to the support structure. The release deflection element is part of a release system, by means of which adherence of the object can be released again as required. This release system also has a release drive system, by means of which a rotational movement of the gripping portion around the release deflection element, which movement accompanies the release movement, can be caused, leading to the active removal of the adhesive belt from the gripped object.