Lightweight Roller Using Composite Tube for Conveyor Systems
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Solution Overview
Problem
Conventional conveyor rollers are too heavy and damage fragile materials due to their robust construction, and they have a shorter lifespan when exposed to harsh environments, leading to increased costs and downtime in manufacturing processes.
Innovation Solution
A lightweight roller system made from materials like carbon fiber or fiberglass with a soft outer surface, such as polytetrafluoroethylene (PTFE), which reduces pressure on materials and is resistant to chemicals and temperature extremes, while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional robust conveyor rollers are used, then structural strength and durability are improved, but weight increases causing damage to fragile materials
Solution Approach 1:
The roller is constructed using composite materials, specifically a hollow cylindrical tube made from fiber-reinforced plastic (such as carbon fiber or fiberglass) that provides high strength-to-weight ratio. This composite structure maintains the necessary structural strength while significantly reducing the weight compared to conventional solid metal rollers, thereby preventing damage to fragile materials.
Solution Approach 2:
The roller employs a hollow cylindrical tube structure with thin-walled construction made from lightweight composite materials. This thin-walled hollow design reduces the overall mass of the roller while maintaining adequate structural integrity through the use of high-strength composite materials, resolving the contradiction between strength and weight.
2Force
If robust conventional rollers are used, then load-bearing capacity is improved, but material breakage increases due to excessive pressure
Solution Approach 1:
The fiber-reinforced plastic composite material provides adequate load-bearing capacity through its high tensile strength properties, while the reduced weight of the hollow composite structure decreases the excessive pressure exerted on fragile materials, preventing breakage.
Solution Approach 2:
The roller design changes the material parameters by using lightweight composite materials instead of dense metals, and adopts a hollow structural configuration. These parameter changes reduce the roller's weight and contact pressure while maintaining sufficient load-bearing capacity through the high strength-to-weight ratio of the composite material.
3Weight of moving object
If lightweight materials are used for rollers, then weight is reduced, but resistance to chemicals and temperature extremes deteriorates
Solution Approach 1:
The fiber-reinforced plastic composite material (such as carbon fiber or fiberglass) inherently provides resistance to chemicals and temperature extremes while maintaining lightweight properties. The composite structure combines the strength and environmental resistance of fibers with the protective characteristics of the plastic matrix, achieving both weight reduction and environmental durability.
Solution Approach 2:
The roller employs different materials for different functional requirements: the hollow cylindrical tube is made from fiber-reinforced plastic that provides both lightweight properties and environmental resistance, while the end caps are made from metal materials that provide structural support and mounting capabilities. This local differentiation of material properties optimizes both weight and environmental resistance.
4Duration of action of stationary object
If solid robust rollers are used, then durability is improved, but lifespan in harsh environments decreases
Solution Approach 1:
The fiber-reinforced plastic composite material used in the hollow roller tube provides superior resistance to chemicals and temperature extremes compared to conventional solid metal rollers. This composite construction enhances the roller's reliability and operational lifespan in harsh manufacturing environments while maintaining structural durability.
Data Source
AI summary
One embodiment provides a lightweight roller, including: a cylindrical tube manufactured using a lightweight material; the cylindrical tube comprising a first end, a second end substantially opposite the first end, and an outer surface; and at least one end cap attached to at least one of the first end and the second end. Other aspects are described and claimed.