Adjustable Guide Rail Preform Conveyor with Gas Flow Transport

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Solution Overview

Problem

Existing devices for transporting preforms to blow molding machines are not maintenance-friendly and lack adaptability to different types of preforms, leading to potential faults and inefficiencies in the transportation process.

Innovation Solution

A device featuring a horizontal conveyor with adjustable guide rails and a securing element above it, utilizing a gas flow generated by transport nozzles below and above the guide rails to transport preforms efficiently, along with a roller sorter and sensor devices for alignment and quality control, ensuring uninterrupted feeding to processing machines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional conveyor devices are used to transport preforms, then preform transportation is achieved, but the devices are not maintenance-friendly and lack adaptability to different preform types

Engineering Contradiction:
Improveadaptability to different preform typesVSAvoidmaintenance-friendliness
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

The guide rails are made adjustable in position and distance, allowing the conveyor to adapt to different preform sizes and types. This dynamic adjustment capability enables the same device to handle various preform configurations without requiring complex replacement of components, thereby improving adaptability while maintaining ease of maintenance.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The conveyor device is designed with universal features that allow it to handle multiple types of preforms using the same basic structure. The adjustable guide rails and securing elements can be reconfigured for different preform types, eliminating the need for specialized devices for each preform type and simplifying maintenance requirements.

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

2Adaptability or versatility

If fixed guide rails are used, then device structure is simple, but the device cannot adapt to different preform sizes

Engineering Contradiction:
Improveadaptability to different preform sizesVSAvoidguide rail system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The guide rails are designed to be adjustable in position and spacing, allowing operators to configure them for different preform sizes. This dynamic adjustment capability provides adaptability to various preform dimensions while adding only minimal complexity to the overall device structure.

Inventive Principle:
Principle #15Dynamics

3Reliability

If preforms are transported without securing elements, then the device is simpler, but preforms may be unintentionally discharged

Engineering Contradiction:
Improvepreform containment reliabilityVSAvoiddevice structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Securing elements are introduced as intermediary components between the guide rails and preforms. These elements act as mediators that prevent unintentional discharge of preforms while adding minimal structural complexity to the device.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Productivity

If conventional transport methods are used, then basic transportation is achieved, but gaps between preforms cause interruptions in feeding

Engineering Contradiction:
Improvecontinuous feeding capabilityVSAvoidpreform acceleration speed
Core Design Contradiction:
ProductivityVSSpeed

Solution Approach 1:

The gas flow system is designed to provide continuous acceleration of preforms, eliminating gaps and interruptions in the feeding process. The horizontal conveyor maintains constant motion and acceleration, ensuring uninterrupted delivery of preforms to the processing machine and maximizing productivity.

Inventive Principle:
Principle #20Continuity of useful action

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

The solution provides a maintenance-friendly, fault-resistant system capable of adapting to various preform sizes and types, ensuring continuous and efficient transportation by reducing gaps between preforms and enhancing acceleration through the gas flow, thus ensuring uninterrupted feeding to further processing machines.

Implementation Method 1

The preforms are transported via a gas flow generated by the horizontal conveyor

Methodology Applied
Scientific EffectGas flow: Fluid Spray

Implementation Method 2

enhancing acceleration through the gas flow

Methodology Applied
Scientific EffectGas flow acceleration: Fluid Spray

Data Source

PatentEP2221261B1Device for conveying preforms
Publication Date: 2013.09.18 KRONES AG
  • EP2221261B1 patent drawingFigure 1~2a
  • EP2221261B1 patent drawingFigure 2b
  • EP2221261B1 patent drawingFigure 3~4

AI summary

A device (9) for transporting preforms (1), comprising at least one horizontal conveyor (30) for transporting the preforms (1), is disclosed. The preforms (1) are transported by a gas flow generated by the horizontal conveyor (30), which transports the preforms (1) into a further processing machine (63). The horizontal conveyor (30) has two spaced-apart, opposing guide rails (22) for guiding the preforms (1). The distance between the guide rails (22) is variably adjustable.