Robot Bucket Recovery for Damage-Free Material Discharge

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Solution Overview

Problem

Existing supplier apparatuses face challenges in recovering usable materials efficiently after temporary stops, such as during product switches or maintenance, as they are designed to handle only a small fraction of materials in a reusable manner, leading to potential damage and loss of quality.

Innovation Solution

A recovery device equipped with a robot, bucket, and controller that switches between receiving and discharging orientations, using sensors to measure distance and load to control the bucket's height and orientation for precise material recovery into containers, preventing damage and ensuring efficient reuse.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional supplier apparatuses are used to recover materials after temporary stops, then the recovery process is simple, but the materials are damaged and quality is lost

Engineering Contradiction:
Improvematerial qualityVSAvoidrecovery device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The bucket is designed to switch between receiving orientation (opening upward) and discharging orientation (opening downward) based on operational needs. This dynamic reconfiguration allows the same component to perform multiple functions safely, enabling material recovery without damage while maintaining system simplicity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The robot acts as an intermediary between the conveyor belt and the recovery container. It picks up materials from the conveyor, transfers them to the bucket, and controls the discharge process, thereby preventing direct impact and damage to materials during recovery

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of substance

If materials are recovered after temporary stops, then material waste is reduced, but the recovery process takes time

Engineering Contradiction:
Improvematerial wasteVSAvoidrecovery time
Core Design Contradiction:
Loss of substanceVSLoss of time

Solution Approach 1:

The robot picks up materials from the conveyor belt and places them in the bucket before the temporary stop is fully completed. This preliminary action ensures materials are secured for recovery without waiting for the stop to finish, reducing both material waste and recovery time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The recovery device operates continuously during temporary stops - the robot continuously picks up materials while the conveyor is stationary, and the bucket continuously accumulates materials. This continuous operation maximizes material recovery efficiency without extending the stop duration

Inventive Principle:
Principle #20Continuity of useful action

3Speed

If the bucket discharges materials from high position, then discharge speed is fast, but materials are dropped and damaged

Engineering Contradiction:
Improvedischarge speedVSAvoidmaterial integrity
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The bucket dynamically switches between receiving orientation (for accumulation) and discharging orientation (for release). By controlling the discharge orientation and using the robot to manage the release process, materials are discharged at controlled speeds without excessive dropping, maintaining integrity while achieving efficient discharge

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The robot serves as an intermediary that controls the discharge process. Instead of materials falling directly from height, the robot picks them up from the bucket and places them in the container, mediating the transfer to prevent damage while maintaining operational speed

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4269048B1Recovery device and use of this device
Publication Date: 2025.09.10 SUNTORY HLDG LTD
  • EP4269048B1 patent drawingFigure 1~2
  • EP4269048B1 patent drawingFigure 3~4
  • EP4269048B1 patent drawingFigure 5~6

AI summary

A recovery device 1 includes: a robot 2; a bucket 3; and a controller 4, the bucket 3 being switchable in response to an operation of the robot 2 between a receiving orientation and a discharging orientation, the controller 4 being configured to perform a receiving function for controlling the robot 2 to switch the bucket 3 into the receiving orientation and move the bucket 3 to the receiving position to cause the bucket 3 to receive the recovery target, and a discharging function for controlling the robot 2 to move the bucket 3 containing the recovery target to a position over a bottom surface of the recovery container C at a predetermined height and switch the bucket 3 into the discharging orientation to cause the bucket 3 to discharge the recovery target at the predetermined height.