Crown Cap Lifting Conveyor Cleats for Orientation Sorting
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Solution Overview
Problem
Existing cap-sorting systems fail to ensure that caps are consistently oriented correctly, leading to improperly oriented caps being sent downstream, which requires additional detection and ejection processes, potentially damaging equipment and caps.
Innovation Solution
The device employs cleats with a convex lower edge face and a concave upper edge face to guide caps into proper orientation, using a lifting conveyor with shaped cleats to unbalance improperly oriented caps, ensuring they drop back into the storage volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional lifting means with flat cleats are used, then the structure is simple, but caps cannot be consistently oriented correctly leading to improper orientation downstream
Solution Approach 1:
The cleats are designed with different local geometries: a convex lower edge face that contacts the cap's outer periphery and a concave upper edge face that contacts the cap's inner periphery. These localized geometric features create specific contact points that guide cap orientation without requiring complete redesign of the entire cleat structure.
Solution Approach 2:
The cleat structure employs asymmetric geometry where the lower edge face is convex and the upper edge face is concave, creating an asymmetric contact configuration with the cap. This asymmetry ensures that only caps in the correct orientation can be properly supported, while incorrectly oriented caps become unbalanced and drop back into the reservoir.
2Manufacturing precision
If additional detection and ejection processes are added to handle improperly oriented caps, then orientation accuracy can be improved, but equipment complexity increases and damage risk rises
Solution Approach 1:
The system converts the harmful effect of gravity (which causes incorrectly oriented caps to remain in the system) into a beneficial sorting mechanism. By designing the cleats with asymmetric geometry, gravity causes improperly oriented caps to become unbalanced and naturally drop back into the reservoir, while correctly oriented caps are properly supported and transported forward.
3Ease of manufacture
If conventional flat cleats are used, then the device is simple to manufacture, but caps may become stuck or nested during transport
Solution Approach 1:
The cleat edges are designed with curved surfaces rather than flat surfaces. The lower edge face is convex and the upper edge face is concave, creating curved contact surfaces with the cap. This curvature prevents caps from getting stuck or nested during transport by ensuring smooth contact points that guide caps through the transport path.
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 solution effectively sorts caps by ensuring all caps are correctly oriented before being sent downstream, reducing the need for additional detection and ejection processes and minimizing equipment damage.
Implementation Method 1
improperly oriented caps, causing them to drop back into the storage volume
Data Source
AI summary
A device for providing sorted closure elements in the form of crown caps, having a space for bulk storage of the caps, a lifting conveyor in the form of a belt entering the space and including, on an outer face, a plurality of cleats oriented transversely and spaced in order to define a recess between a lower cleat and an upper cleat, wherein each recess collects a plurality of the caps as the recess passes through the storage space and is capable of sorting unbalanced caps present inside the recess. The lower edge of the upper cleat has a convex section opposite the belt. The sorting of the unbalanced caps is configured to cooperate with the movement of the lifting conveyor to cause the incorrectly oriented caps to fall.