Spring-Biased Roller Conveyor Guards for Object Blockage
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Solution Overview
Problem
Conveyor systems face challenges in preventing smaller objects, such as gloves or vests, from entering the spaces between rollers, which can disrupt the operation and cause loss of items being conveyed.
Innovation Solution
The implementation of guards with spring-biased frames and arcuate contours that fit around rollers, equipped with wheels and channels to maintain rolling interface and block access to triangular areas, reducing the opportunity for smaller objects to enter these spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spaces between rollers are made small to prevent items from dropping, then item conveyance is improved, but smaller objects can still enter the spaces causing disruption
Solution Approach 1:
The guard is divided into two frames that can be pushed apart by a spring, allowing the guard to be compressed for installation between rollers and then expand to block the space. This segmentation enables the guard to adapt to the tight space while maintaining its blocking function.
Solution Approach 2:
The guard incorporates a spring mechanism that allows dynamic adjustment between a compressed state (for installation) and an expanded state (for blocking). This dynamic capability enables the guard to fit into small spaces while maintaining effective blockage of smaller objects.
2Reliability
If guards are installed between rollers to block smaller objects, then safety is improved, but the guard may interfere with roller operation
Solution Approach 1:
The guard features an arcuate contour that matches the roller shape, creating a localized rolling interface. This design concentrates the interaction between guard and roller at specific points (wheels contacting the roller surface) rather than along the entire guard-roller interface, minimizing friction and interference with roller rotation.
Solution Approach 2:
Wheels are introduced as intermediary elements between the guard and the roller. These wheels facilitate smooth rolling contact, reducing friction and preventing the guard from hindering roller operation while maintaining the blocking function.
3Reliability
If the guard structure is made complex to effectively block all access areas, then blocking effectiveness is improved, but installation and maintenance difficulty increases
Solution Approach 1:
The spring-biased frames allow the guard to dynamically compress between rollers for easy installation and then expand to provide comprehensive blocking. This dynamic mechanism simplifies installation and maintenance while maintaining effective blockage of all triangular areas adjacent to the rollers.
Solution Approach 2:
The arcuate contour of the frames matches the cylindrical shape of the rollers, allowing the guard to conform to the curved space between rollers. This curved design enables effective blocking of triangular areas while maintaining a compact, space-efficient structure that is easy to install and remove.
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 guards effectively prevent smaller objects from entering the spaces between rollers, ensuring continuous operation of the conveyor system while maintaining a low-friction rolling interface, thus enhancing the reliability and efficiency of item conveyance.
Implementation Method 1
The guards can include a first frame and a second frame that can be pushed apart from one another by a spring or other biaser
Implementation Method 2
The guard may include wheels (e.g., along the arcuate contour) that may contact the roller and facilitate a rolling interface (e.g., which may provide a low friction interface that permits the roller to continue rolling without substantial hindrance from the guard)
Data Source
AI summary
A guard assembly can be positionable in an installed position between a first roller and a second roller of a roller conveyor system. The guard assembly can include a first frame having a first contour shaped for receiving at least a portion of the first roller. The guard assembly can further include a second frame having a second contour shaped for receiving at least a portion of the second roller. The guard assembly can also include a biaser between the first frame and the second frame so as to urge the first frame toward the first roller and the second frame toward the second roller in the installed position.