Container Unloading Device with Pivoting Discharge Arm

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Solution Overview

Problem

Existing container unloading devices face inefficiencies in removing retained contents, particularly when items are caught behind the opening rim, as they lack effective mechanisms to dislodge and orient articles for smooth unloading.

Innovation Solution

A device featuring a pivoting arm with a rotatable drum and protrusions for dislodging retained items, combined with an orientation conveyor and turning apparatus to reorient and free articles from conveyor belts, ensuring efficient unloading and preventing wheel-driven issues during transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a conventional tilting apparatus is used to unload container contents, then the unloading process is simple, but retained pieces caught behind the opening rim cannot be effectively removed

Engineering Contradiction:

Improveunloading efficiencyVSAvoidcomplete emptying of container

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The discharge member is designed with multiple degrees of freedom, allowing it to pivot about a pivoting axis and move its end portion into the container. This dynamic positioning capability enables the activating element to reach retained pieces that are statically inaccessible to conventional discharge mechanisms.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The activating element incorporates a shaking mechanism that generates vibrations to dislodge retained pieces from the opening rim. This mechanical vibration directly addresses the problem of pieces being caught behind the rim by providing dynamic disturbance forces.

Inventive Principle:

Principle #18Mechanical vibration

2Ease of operation

If no orientation mechanism is provided, then the device structure is simple, but articles with wheels may contact conveyor belts causing transport issues

Engineering Contradiction:

Improvesmooth article transportVSAvoidstructure of discharge member

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The orientation mechanism performs preliminary reorientation of articles before they reach the conveyor belt. By detecting wheel positions and pre-adjusting article orientation, the system prevents wheel-conveyor contact issues before transport begins.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The orientation mechanism acts as an intermediary between the discharge process and conveyor transport. It mediates the transition by ensuring articles are properly oriented, with the detection device and turning mechanism serving as intermediate components that prepare articles for smooth conveyor operation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP2194012B1A device for unloading the contents of a container,

Publication Date: 2012.07.25 INGSBUREAU MODERNIEK

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AI summary

A device (1) for unloading the contents of a container (2) comprises a tilting apparatus for tilting a container (2) towards an opening (3) thereof in a discharge condition of the apparatus. The device (1) comprises a discharge member (6) which is movable with respect to the tilting apparatus and controllable such that at least a portion of the discharge member (6) can be moved into the container (2) through the opening (3) thereof when the container (2) is tilted by the tilting apparatus in the discharge condition thereof.