Movable Head Transfer Device for Apples Using Inflatable Membranes

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Solution Overview

Problem

Current apple treatment lines are inefficient in transferring and accumulating apples due to space and water consumption constraints, and often cause damage to the products during handling.

Innovation Solution

A treatment line with a movable head and retractable transverse elements that use inflatable membranes to gently pick up and transfer apples from a tank to a container, allowing for multiple layers of accumulation without impacting the products.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a complex device with compacting mechanism is used to transfer apples, then the apples can be accumulated in containers, but the device complexity increases and space occupation increases

Engineering Contradiction:
Improveapple accumulation capacityVSAvoidtransfer device complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent uses flexible membranes instead of rigid mechanical compacting devices. The membranes can be inflated to push apples into containers and then deflated to return to their original position, eliminating the need for complex mechanical compacting mechanisms while maintaining apple accumulation capability

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The transfer device employs dynamically adjustable membrane inflation levels. By controlling the inflation pressure, the system can adapt to different apple volumes and container positions, replacing static complex mechanical structures with a dynamic, space-efficient solution

Inventive Principle:
Principle #15Dynamics

2Productivity

If the end section area is increased to transfer more apples, then the apple transfer capacity increases, but the space occupation and water consumption increase

Engineering Contradiction:
Improveapple transfer capacityVSAvoidend section area
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent utilizes the vertical dimension through membrane inflation rather than expanding the horizontal end section area. The inflated membranes rise vertically to push apples into containers, allowing increased transfer capacity without increasing the footprint area of the tank end section

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

Solution Approach 2:

The system uses pneumatic inflation of membranes to generate the force needed for apple transfer. By controlling air pressure, the system can adjust the number of apples transferred per cycle, providing a scalable solution that doesn't require physical expansion of the tank structure

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Productivity

If traditional transfer mechanisms are used, then apples can be moved to containers, but the apples may be damaged due to impacts

Engineering Contradiction:
Improveapple transfer efficiencyVSAvoidapple damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The flexible membranes provide gentle contact with apples during transfer. The membranes can deform to accommodate apple shapes and movements, preventing impact damage while still effectively pushing apples into containers

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The inflated membranes create a cushioning effect before apples are pushed into containers. The air-filled membranes absorb and distribute forces, preventing direct impact between apples and rigid container walls or other apples

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

4Manufacturing precision

If multiple channels are used for different apple groups, then sorting accuracy improves, but the water consumption and maintenance costs increase

Engineering Contradiction:
Improveapple sorting accuracyVSAvoidwater consumption
Core Design Contradiction:
Manufacturing precisionVSLoss of substance

Solution Approach 1:

The membrane inflation system serves multiple functions: it transfers apples, accumulates them in containers, and can be adjusted for different apple volumes. This single versatile mechanism replaces multiple dedicated channels, reducing water consumption and maintenance requirements while maintaining sorting accuracy

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

Data Source

PatentEP3408198B1Unit for transferring horticultural products, and related method
Publication Date: 2022.08.31 UNITEC SPA
  • EP3408198B1 patent drawingFigure 1
  • EP3408198B1 patent drawingFigure 2
  • EP3408198B1 patent drawingFigure 3~5

AI summary

A unit for transferring horticultural products (A) between at least one tank, in which the horticultural products (A) float on a fluid mass, and at least one collection container, comprising a head (2) provided with a plurality of walls (3) normally arranged vertically, the head (2) being movable between at least one collection position, in which the walls (3) are interposed between respective horticultural products (A), which float on the fluid mass at a respective predefined section (8) of the tank, and at least one unloading position, in which the walls (3) face and are proximate to the collection container. In an active configuration, the transverse elements (7) protrude transversely from the space occupation of the walls (3) to ensure mechanical interference with the fall of the horticultural products (A) as a consequence of the subsequent lifting of the head (2) and of its transfer toward said unloading position. In a passive configuration, the transverse elements (7) are retracted toward the walls (3), for the free release of the horticultural products (A) into the respective collection container.