Pivotable Flap Conveyor for Reliable Flat Object Transport
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Solution Overview
Problem
Existing devices for transporting flat objects, such as blister strips, face high operating costs, contamination issues due to vacuum systems, and unreliable holding of slightly curved objects, particularly in the pharmaceutical industry.
Innovation Solution
A conveyor belt system with pivotable flaps that securely hold flat objects by forming an acute angle, allowing for precise pick-up and release, and using a feed unit with a suction mechanism controlled by cams for synchronized operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vacuum technology is used to hold flat objects on the transport belt, then the objects can be transported in suspended fashion, but the operating costs increase and contamination issues arise
Solution Approach 1:
The invention extracts and eliminates the vacuum system from the transport device, replacing it with a purely mechanical flap-based holding mechanism. This removes the source of contamination (exhaust air stream) while maintaining the suspended transport capability through the geometric design of the flaps that naturally hold objects without vacuum.
Solution Approach 2:
The invention replaces the vacuum-based holding system with a mechanical flap system. The flaps use their physical geometry (acute angles, intermediate spaces) to mechanically hold flat objects through gravity and contact forces, substituting the pneumatic vacuum system with a solid-mechanical solution that avoids contamination.
2Reliability
If vacuum technology is used to transport blister strips, then suspended transport is achieved, but heat generation occurs which is disadvantageous for clean-air systems
Solution Approach 1:
The invention removes the vacuum generation system entirely, eliminating the heat source associated with vacuum production. The mechanical flap system operates without energy-intensive vacuum pumps, thereby avoiding heat generation that would interfere with clean-air temperature control in pharmaceutical environments.
Solution Approach 2:
The vacuum-based thermal system is replaced with a passive mechanical flap system that uses gravity and mechanical contact rather than energy-consuming vacuum pumps. This substitution eliminates the heat generation problem while maintaining transport reliability through the acute-angled flap geometry.
3Reliability
If vacuum suction is used to hold blister strips, then transport is possible, but slightly curved objects cannot be reliably held
Solution Approach 1:
The invention creates local holding zones through the intermediate spaces between flap pairs, where each space is specifically designed to accommodate and hold flat objects of varying shapes. The acute angles and localized contact points provide adaptive holding that works for both flat and slightly curved objects without requiring uniform vacuum pressure across the entire object surface.
Solution Approach 2:
The flaps are designed to be movable rather than fixed, allowing them to dynamically adapt to objects with slight curvatures. The movable flaps can adjust their position to conform to the object's shape, providing reliable holding through mechanical contact that adapts to shape variations, unlike rigid vacuum surfaces.
4Reliability
If mechanical transport devices are used for suspended transport of flat objects, then transport functionality is achieved, but the device complexity increases and maintenance requirements increase
Solution Approach 1:
The transport belt is segmented into multiple independent flap pairs, each capable of simple pivoting motion. This segmentation allows each flap to be a simple, low-maintenance component rather than one large complex mechanism, reducing overall device complexity while achieving reliable suspended transport through the collective action of many simple segments.
Solution Approach 2:
Instead of using complex mechanisms to actively grip and hold objects, the invention inverts the approach by using passive acute-angled flaps that naturally hold objects through their geometry. The simplicity of the inverted design (letting objects rest in intermediate spaces rather than actively gripping them) reduces mechanical complexity and maintenance needs.
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
The system ensures secure and precise transport of flat objects, including those with slight curvature, reduces maintenance needs, and avoids the disadvantages of vacuum technology, enabling efficient handling of objects of varying sizes without format adaptations.
Implementation Method 1
a feed unit for conveying the flat objects into the flaps from below
Data Source
AI summary
The device for transporting flat objects from an output unit to an input unit has a conveyor belt with several pairs of flaps to transport flat objects in suspended fashion. A feed unit serves to convey the flat objects into the flaps from below. Each flap has a first side piece and a second side piece, which define an intermediate space for holding an edge section of the flat object. The first side pieces and the second side pieces of the flaps of each pair of flaps face each other. Each flap can be pivoted between an open position for picking up and releasing the flat object and a closed position for transporting the flat objects.