Delivery Item Sorting Backstop Cushioning for Uniform Stacking
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Solution Overview
Problem
Current sorting machines face issues with non-uniform stacking and misorientation of delivery items due to differences in size, weight, and materials, leading to inefficiencies and safety risks during manual realignment, and lack effective solutions for preventing items from flying out of the sorting stack.
Innovation Solution
A sorting machine apparatus with a bumper and coupling feature that aligns delivery items with existing items in the output bin, using a height-extended bumper and paddle to prevent rotation and skewing, and includes a dampening pad to reduce impact force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If delivery items are routed at high speed (4 m/s) through the sorting machine, then productivity is improved, but the delivery items gain excessive momentum causing misorientation and skewing when they strike the backstop
Solution Approach 1:
A bumper pad is attached to the backstop surface before delivery items strike it. This cushioning element absorbs and dissipates the excessive momentum of high-speed delivery items, preventing them from skewing or becoming misoriented upon impact. The bumper pad allows the sorting machine to maintain high speed operation while ensuring uniform stacking by reducing the harmful effects of momentum at the point of impact.
2Adaptability or versatility
If delivery items with different sizes and weights are sorted into the output bin, then adaptability is improved, but the delivery items become misoriented and require manual realignment
Solution Approach 1:
The bumper pad is positioned at the backstop to provide cushioning before delivery items of varying sizes and weights make contact. This allows the system to handle diverse delivery items without requiring manual intervention, as the bumper pad compensates for the different momentums and sizes, maintaining orientation uniformity across all item types.
Solution Approach 2:
The bumper pad acts as an intermediary between the delivery items and the rigid backstop. It mediates the interaction by providing a compliant surface that adapts to different item characteristics, preventing misorientation without requiring manual realignment while maintaining the ability to sort various item types.
3Strength
If the backstop is made of rigid metal material, then strength is improved, but delivery items become misoriented and may fly out of the sorted stack
Solution Approach 1:
A bumper pad is attached to the rigid metal backstop surface. The bumper pad provides the necessary cushioning to prevent misorientation and flying items, while the rigid metal backstop maintains its structural strength and durability. The combination allows the system to benefit from both the strength of metal and the cushioning properties of the bumper material.
Solution Approach 2:
The backstop assembly becomes a composite structure combining rigid metal support with a compliant bumper pad material. The metal provides structural strength and durability, while the bumper pad material (such as rubber, foam, or plastic) provides cushioning to prevent item misorientation. This composite approach resolves the contradiction between strength and alignment precision.
4Manufacturing precision
If clerks manually realign misoriented delivery items, then stack uniformity is improved, but operator safety is compromised and time is lost
Solution Approach 1:
The bumper pad enables the sorting system to self-correct orientation issues automatically. As delivery items strike the cushioned backstop, the bumper pad naturally prevents misorientation and keeping items aligned in the stack without requiring manual intervention. This eliminates the safety risks and time loss associated with clerks manually realigning items.
Solution Approach 2:
By providing cushioning at the backstop before misorientation can occur, the system prevents the problem rather than requiring correction. This eliminates the need for manual intervention, improving operator safety by removing hands from dangerous areas near moving belts and pulleys, while also maintaining continuous high-speed operation.
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 apparatus ensures uniform stacking and reduces manual intervention, enhancing sorting efficiency and safety by preventing items from becoming misaligned or flying out of the bin.
Implementation Method 1
The apparatus also includes a dampening pad configured to reduce an impact force as the at least one delivery item contacts the bumper
Data Source
AI summary
An apparatus that substantially improves the stack quality of delivery items in a delivery item sorting machine by ensuring uniformity of the orientation of the delivery items. The apparatus accommodates toolless installation in the delivery item sorting machine and economical manufacturing options. The apparatus substantially prevents delivery item disorientation and undesired departure of delivery items from the sorting machine. The apparatus reduces operator safety concerns, and increases the net speed of delivery item processing.