Dual-Robot Conveying with Selective Shelf Layer Gripping

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Solution Overview

Problem

Traditional manual sorting methods in logistics warehousing are labor-intensive, inefficient, and prone to errors, while existing automated systems require customized shelves and convey entire shelves, leading to low conveying efficiency and energy wastage.

Innovation Solution

A conveying system comprising a first robot that grips and places articles on a temporary buffer, and a second robot connected to the buffer, which follows the first robot, allowing selective gripping and conveying of specific storage containers or goods, improving sorting accuracy and efficiency by using a telescopic gripping apparatus with adjustable height and clamping mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the entire shelf is conveyed to the sorting station, then all goods on the shelf are delivered, but unwanted goods are also conveyed together, reducing conveying efficiency and wasting energy

Engineering Contradiction:
Improveconveying efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The shelf is divided into multiple interlayers, and the gripping apparatus is configured to selectively grip only the specific interlayer containing the target article, rather than conveying the entire shelf. This segmentation allows the robot to transport only the necessary portion, improving conveying efficiency and reducing energy consumption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gripping apparatus extracts and conveys only the specific interlayer containing the target article from the shelf, leaving other interlayers behind. This extraction principle eliminates the transportation of unwanted goods, directly addressing the problem of low conveying efficiency and energy wastage.

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If the gripping height is fixed, then the structure is simple, but the robot can only grip articles at a specific height, reducing adaptability

Engineering Contradiction:
Improvegripping height adjustmentVSAvoidgripping apparatus structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The gripping apparatus incorporates a telescopic component that can dynamically adjust its length, allowing the gripping height to be varied according to the position of the target article on different interlayers. This dynamic adjustment capability enables the robot to access articles at any height while maintaining a relatively compact base structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The telescopic component uses a nested structure where one telescopic rod is inserted inside another, allowing the gripping apparatus to extend or retract as needed. This nesting principle provides height adjustability without significantly increasing the overall structural complexity when not in use.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Productivity

If a single robot performs both gripping and conveying, then the system is simple, but the sorting accuracy and efficiency are reduced

Engineering Contradiction:
Improvesorting efficiencyVSAvoidrobot system configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system is divided into two specialized robots: a first robot responsible for gripping operations and a second robot responsible for conveying operations. This functional segmentation allows each robot to be optimized for its specific task, improving sorting accuracy and efficiency while maintaining manageable system complexity through clear division of labor.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The movable temporary buffer apparatus serves as an intermediary between the first robot (gripping) and the sorting station. The first robot places the gripped interlayer onto this buffer, which then transfers it to the second robot for conveying. This intermediary mechanism enables efficient task distribution between the two robots.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3786085B1Conveying system and conveying method with a first robot and a second robot
Publication Date: 2024.05.01 BEIJING GEEKPLUS TECH CO LTD
  • EP3786085B1 patent drawingFigure 1
  • EP3786085B1 patent drawingFigure 2
  • EP3786085B1 patent drawingFigure 3~4

AI summary

A robot, comprising: a locomotion apparatus (101), the locomotion apparatus (101) automatically advancing to a preset location on the basis of a locomotion path received by a conveying device; a body (102), the body (102) being used for supporting an article gripping apparatus (104); an accommodating apparatus (103), the accommodating apparatus (103) being connected to the body (102) and being capable of sliding, the accommodating apparatus (103) comprising a plurality of accommodating positions (1031), the accommodating positions (1031) being vertically stacked layers, one layer being capable of accommodating at least one target article; the article gripping apparatus (104), the article gripping apparatus (104) being arranged on the body (102), the article gripping apparatus (104), on the basis of a conveying task received by the conveying device, gripping a target article from within an article storage apparatus and automatically placing the target article in an accommodating position (1031) of the accommodating apparatus (103), or gripping a target article from within an accommodating position (1031) of the accommodating apparatus (103) and automatically placing the target article in an article storage apparatus. Also provided are a conveying system and a conveying method.