Suction Roller Cap Structure for Stable, Non-Bending Conveyance

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Solution Overview

Problem

Existing conveying devices using suction rollers to hold and convey objects, such as steel plates, often cause bending or deviation due to insufficient adsorption force and improper contact, especially when the conveyed object is not bent or is made of non-magnetic materials like aluminum or carbon fiber reinforced polymer (CFRP) resin.

Innovation Solution

A conveying device with a suction roller and a cap component having platform portions on either side of the suction roller, forming a planar negative pressure region and exposing the suction roller through an open portion, allowing stable adhesion and conveyance without bending the object.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a suction roller is used to adsorb and hold the conveyed object through negative pressure, then the conveyed object can be held without bending, but the adsorption force is insufficient and deviation occurs during conveying

Engineering Contradiction:
Improveshape stabilityVSAvoidconveyance reliability
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The cap component is divided into a first cap component and a second cap component separated by a gap, with each cap component having platform portions that face the conveyed object. This segmentation creates multiple independent negative pressure regions that collectively provide sufficient adsorption force while maintaining shape stability, preventing deviation during conveying.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The platform portions extend in the conveying direction beyond the suction roller, creating a planar adsorption surface rather than relying solely on the cylindrical surface of the suction roller. This dimensional extension increases the contact area and adsorption force, ensuring reliable conveyance without bending or deviation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Stability of the object's composition

If the conveyed object is adsorbed and held through negative pressure, then the object can be conveyed without bending, but the conveyed object and roller component are only in linear contact, reducing adsorption force

Engineering Contradiction:
Improveshape stabilityVSAvoidadsorption force
Core Design Contradiction:
Stability of the object's compositionVSForce

Solution Approach 1:

The platform portions extend in the conveying direction, transforming the contact from linear (point contact) to planar (surface contact). This dimensional extension creates a larger contact area between the cap component and the conveyed object, significantly increasing the adsorption force while maintaining shape stability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The cap component serves multiple functions: it provides platform portions for increased contact area, creates negative pressure regions for adsorption, and supports the conveyed object during conveyance. This multi-functionality addresses both the need for sufficient adsorption force and shape stability simultaneously.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Use of energy by moving object

If a suction roller is used to convey non-magnetic materials, then energy efficiency is improved, but the adsorption force is insufficient causing deviation

Engineering Contradiction:
Improveenergy efficiencyVSAvoidconveyance reliability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The cap component is segmented into multiple parts with platform portions that create multiple negative pressure regions. This segmentation increases the total adsorption force by distributing the suction effect across multiple regions, ensuring reliable conveyance of non-magnetic materials while maintaining energy efficiency through the suction roller mechanism.

Inventive Principle:
Principle #1Segmentation

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 device ensures stable conveyance of objects without bending, maintains sufficient adsorption force, and can handle non-magnetic materials, contributing to energy-efficient manufacturing processes.

Implementation Method 1

a suction roller, configured to generate negative pressure to adsorb a conveyed object

Methodology Applied
Scientific EffectNegative pressure: Pressure Gradient

Data Source

PatentUS20250250122A1Conveying device
Publication Date: 2025.08.07 HONDA MOTOR CO LTD
  • US20250250122A1 patent drawing
  • US20250250122A1 patent drawing
  • US20250250122A1 patent drawing

AI summary

A conveying device is provided. The conveying device includes: a suction roller, configured to generate negative pressure to adsorb the conveyed object; and a cap component, disposed between the suction roller and the conveyed object. The cap component has a platform portion, the platform portion faces the conveyed object, the platform portion includes a first platform portion and a second platform portion, the first platform portion and the second platform portion are respectively disposed on a downstream side and an upstream side of the suction roller in a conveying direction, the first platform portion and the second platform portion are separated from each other, and an open portion exposing the suction roller is disposed in a region where the first platform portion and the second platform portion are separated in the conveying direction.