Peanut Peeling Robot Using Robotic Gripping to Reduce Shell Damage

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Solution Overview

Problem

Current peanut peeling machines have a high shell damage rate and uneven peeling quality, and manual peeling is labor-intensive and inefficient, posing challenges for farmers in the peanut production area.

Innovation Solution

A fully automatic peanuts peeling robot with a processing mechanism, feeding mechanism, and screening mechanism, utilizing conveyor belts, pneumatic fingers, and camera sensors to efficiently separate peanut seeds from shells, mimicking manual peeling processes with mechanical arms and reducing labor intensity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If steel grain rods and steel grid concave plates are used for striking and kneading, then peeling process is achieved, but shell damage rate increases and peeling quality becomes uneven

Engineering Contradiction:

Improvepeeling process efficiencyVSAvoidpeeling quality uniformity

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent replaces the traditional mechanical striking and kneading system (steel grain rods and steel grid concave plates) with a robotic mechanical arm system that performs peeling through controlled gripping and pulling motions. This substitution allows for more precise control over the peeling force and motion trajectory, resulting in more uniform peeling quality while maintaining productivity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operational parameters from fixed mechanical striking/kneading to dynamically adjustable robotic gripping force and motion speed. The robotic system can adjust gripping force, pulling speed, and motion path based on real-time feedback, enabling consistent peeling quality across different peanuts while preserving shell integrity for seed retention.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If rubber roller and rubber floating concave plate are used for extruding and kneading, then peeling process is achieved, but shell damage rate increases and peeling quality becomes uneven

Engineering Contradiction:

Improvepeeling process efficiencyVSAvoidpeeling quality uniformity

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent replaces the rubber roller and rubber floating concave plate extruding system with a robotic mechanical arm that uses controlled gripping and pulling motions. This substitution provides superior control over the peeling process, ensuring uniform peeling quality while reducing shell damage through precise force management.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If manual peeling by manpower is used, then peeling process is achieved, but labor intensity increases and work efficiency decreases

Engineering Contradiction:

Improvepeeling qualityVSAvoidwork efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The patent implements an automated robotic peeling system that performs the peeling operation autonomously without human intervention. The robotic arm, equipped with sensors and control systems, independently completes the peeling task, eliminating manual labor while maintaining high work efficiency and consistent peeling quality.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent substitutes human manual peeling with an automated robotic mechanical system. This replacement eliminates labor intensity and fatigue while significantly improving work efficiency through continuous operation capability and consistent performance.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If traditional peeling machines are used, then peeling process is achieved, but shell damage rate is high which affects seed retention quality

Engineering Contradiction:

Improvepeeling speedVSAvoidshell damage rate

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the peeling parameters from high-force mechanical striking/kneading to controlled, lower-force robotic gripping and pulling. The robotic system adjusts gripping force and motion speed to minimize shell damage while maintaining peeling effectiveness, ensuring that shells remain intact for seed retention purposes.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the aggressive mechanical striking and kneading systems with a gentler robotic gripping and pulling system. This substitution reduces shell damage rate by applying force more uniformly and controllably, preserving shell integrity while achieving effective peeling.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11744274B2Fully automatic peanuts peeling robot for seeds retention and method for using the same

Publication Date: 2023.09.05 LIAOCHENG UNIV

AI summary

A fully automatic peanuts peeling robot for seeds retention and a method using the same are provided. The robot includes a processing mechanism, a feeding mechanism and a screening mechanism. The processing mechanism includes an aluminum profile support bracket, a bracket assembly, a conveyor belt device, and a conversion device, a sensor device and a cut-off device; the aluminum profile support bracket is fixedly connected to the bracket assembly; the bracket assembly includes a first bracket assembly, a second bracket assembly, and a third bracket assembly; and the aluminum profile support bracket is fixedly connected to the conveyor belt device; the conveyor belt device includes a first conveyor belt assembly, a second conveyor belt assembly, and a third conveyor belt assembly; the conveyor belt device is fixedly connected to the conversion device.