Active Control Roller Top Conveying Assembly
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Solution Overview
Problem
Modular conveyor belts face challenges in accumulating products without backline pressure and damaging high-friction items, with existing solutions either requiring large rollers or complex assembly processes.
Innovation Solution
A modular conveying assembly with actively driven rollers supported above the conveyor module top surface, utilizing a clutch system to rotate the rollers and reduce friction and backline pressure without product-to-product contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If rollers are rotatably mounted directly on the hinge pin connecting modules together, then backline pressure is reduced and product accumulation is enabled, but the roller diameter becomes excessively large and pin wear increases
Solution Approach 1:
The roller support function is segmented from the hinge pin connection function. The roller axle support is a separate component that extends above the module top surface, while the hinge pin remains at the module connection point. This segmentation allows the roller to be smaller and positioned independently of the hinge pin location, resolving the contradiction between reducing backline pressure and avoiding excessive roller diameter.
Solution Approach 2:
The roller axle support acts as an intermediary component between the module body and the roller. It provides a mounting structure that elevates the roller above the module top surface without requiring the hinge pin to support the roller. This intermediary structure enables effective backline pressure reduction while maintaining reasonable roller dimensions and reducing pin wear.
2Object-affected harmful factors
If rollers are supported by roller cradles between modules, then backline pressure is reduced and product accumulation is enabled, but the assembly process becomes difficult and complex
Solution Approach 1:
The roller axle support is merged with the module top surface structure, forming an integrated assembly unit. The roller is then simply mounted onto the support structure that is already part of the module, eliminating the need for separate cradle assemblies and complex multi-step assembly processes. This merging maintains the backline pressure reduction benefit while significantly simplifying assembly.
Solution Approach 2:
The roller axle support structure serves multiple functions: it provides structural support for the module, elevates the roller to the correct position, and simplifies the assembly process. This multi-functional design replaces the complex roller cradle system with a simpler, more universal component that achieves the same backline pressure reduction effect.
3Object-affected harmful factors
If large diameter rollers are used to engage objects being conveyed, then backline pressure is reduced and product accumulation is enabled, but the rollers extend both above and below the module when that configuration is not always desired
Solution Approach 1:
The roller axle support provides localized elevation of the roller above the module top surface only where needed for product engagement. The support structure is positioned and dimensioned to achieve the correct roller height for reducing backline pressure, while the roller itself remains contained within or near the module boundaries. This local quality approach allows precise control of roller position without requiring excessive roller diameter.
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
Enables efficient accumulation of products with reduced backline pressure and minimal wear on components, while simplifying assembly and reducing the risk of damaging high-friction items.
Implementation Method 1
The roller rotates about an axis of rotation that is substantially coaxial with the hinge pin axis
Implementation Method 2
A clutch including a driven surface fixed to the drive axle engages a driving member to rotatably drive the drive axle and, thus the roller
Data Source
AI summary
A modular conveying assembly includes active roller control for reducing backline pressure without product to product contact when accumulating products. Methods are discussed for manipulating objects by a bump-through indexing operation, a slug-control indexing operation, a catch-and-release indexing operation, box or case turning operations, and zero-pressure accumulation operations.