Rotating Crate Drying for High-Throughput, Low-Energy Processing

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Solution Overview

Problem

Existing drying methods for crates or boxes, such as those used in the food industry, are inefficient in terms of throughput due to the sequential processing of objects, leading to high energy consumption and noise generation.

Innovation Solution

A device and method involving a transport system that allows objects to be transported in contact with each other, with a rotating mechanism that rotates them 180° to 360° perpendicular to the transport direction, utilizing spacing and lifting devices to create space for simultaneous processing of multiple objects, and incorporating energy recovery during the braking process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If crates are fed into and removed from a spinning device one at a time, then the drying effect is achieved, but the throughput is relatively slow

Engineering Contradiction:
ImprovethroughputVSAvoidprocessing time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system divides the drying process into multiple parallel processing units. Multiple crates can be processed simultaneously through separate spinning mechanisms, transforming a sequential single-crates process into a parallel multi-crates process, thereby significantly improving throughput

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces a spatial dimension by arranging multiple spinning devices in parallel along the transport path. This allows crates to be processed in multiple dimensions simultaneously (multiple crates at once) rather than sequentially, increasing productivity without extending processing time

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

2Productivity

If compressed air is used to dry crates, then drying is achieved, but energy consumption is considerable

Engineering Contradiction:
Improvedrying efficiencyVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The system utilizes the crates' own rotational motion to achieve drying. By spinning the crates themselves rather than using external compressed air, the system eliminates the need for high-energy air compression while maintaining effective drying through centrifugal force and surface exposure

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention replaces the pneumatic system (compressed air) with a mechanical rotation system. Instead of using air pressure to remove moisture, the system uses mechanical spinning to expose crate surfaces to air flow and generate centrifugal forces that facilitate drying, reducing energy consumption

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If compressed air is used to dry crates, then drying is achieved, but noise generation is considerable

Engineering Contradiction:
Improvedrying efficiencyVSAvoidnoise
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The crates perform their own drying through self-rotation, eliminating the need for noisy compressed air systems. The rotational motion naturally exposes all surfaces to air flow, achieving effective drying without the noise associated with air compression and delivery systems

Inventive Principle:
Principle #25Self-service

4Area of stationary object

If objects are transported in contact with one another, then space utilization is improved, but rotation space is limited

Engineering Contradiction:
Improvespace utilizationVSAvoidrotation mechanism complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The system dynamically adjusts the spacing between objects during transport. Objects move in contact during translation to maximize space utilization, then are individually gripped and rotated when needed. This dynamic spacing allows the system to optimize for both space utilization and rotation capability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The gripping device acts as an intermediary between the closely spaced objects and the rotation mechanism. It selectively engages with individual objects to provide the necessary rotation function while allowing objects to remain in close proximity during transport, resolving the conflict between space utilization and rotation capability

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances drying throughput by allowing simultaneous rotation and drying of multiple objects, reducing energy consumption and noise, while maintaining efficient operation and energy recovery.

Implementation Method 1

rotates them by at least 180° and preferably by at least 360° with respect to a rotation axis that is substantially perpendicular to the transport direction, in order to dry them by the rotating process

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Implementation Method 2

a lifting device which lifts the object to be rotated in its direction of rotation (and in particular in the vertical direction)

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP4182620B1Apparatus and method for drying boxes
Publication Date: 2025.08.06 LUDWIG BOHRER MASCHENBAU
  • EP4182620B1 patent drawingFigure 1~2
  • EP4182620B1 patent drawingFigure 3
  • EP4182620B1 patent drawingFigure 4~5

AI summary

The invention relates to a device for drying objects (10) and, in particular, crates (10), the device comprising: - a transport apparatus (2), which transports the objects (10), more particularly in contact with each other, in a specified transport direction (T); - a first rotating apparatus (4), which is disposed along the transport direction and individually grips the objects (10) and rotates the objects by at least 360°, with respect to an axis of rotation (D) substantially perpendicular to the transport direction (T), in order to dry the objects by means of this rotation process.