Recirculating Container Transfer With Synchronized Paddle Wheel Handling

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Solution Overview

Problem

Conventional single-pass and two-pass machine arrangements for bottle and can manufacturing require extensive space and resources, with two-pass systems sacrificing throughput due to non-synchronous operations and random container transport, which leads to inefficiencies and product defects.

Innovation Solution

A recirculation system with synchronized line starwheels and gripper devices that maintain pocket correlation throughout the process, allowing for multi-pass processing with fewer machines and improved container handling through a paddle wheel mechanism and actuator system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single-pass machine arrangement is used, then the manufacturing process is simple, but the space required and machine footprint are large

Engineering Contradiction:
Improvemachine arrangement complexityVSAvoidmachine footprint
Core Design Contradiction:
Device complexityVSArea of stationary object

Solution Approach 1:

The patent combines multiple processing operations into a single recirculating machine line where containers pass through the same machines multiple times. This merges the functions of what would traditionally require separate machines in a single-pass line, reducing the overall machine footprint while maintaining all necessary processing capabilities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system dynamically adjusts container flow through recirculation, allowing containers to be processed in multiple passes through the same equipment. This dynamic approach replaces the static single-pass configuration with a flexible multi-pass system that optimizes space utilization.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If a two-pass recirculation system is used, then the machine footprint is reduced, but the throughput is sacrificed due to non-synchronous operations

Engineering Contradiction:
Improvemachine footprintVSAvoidthroughput
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The patent implements a synchronous control system that uses feedback mechanisms to coordinate container movement through the recirculation loop. Pocket correlation tracking and synchronized actuators ensure that containers are transferred at the correct timing, maintaining throughput while enabling recirculation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system maintains continuous container flow through the recirculation loop with synchronized transfers, ensuring that the useful action of processing continues without interruption. The synchronous operation prevents idle time and maintains production rhythm despite the recirculating configuration.

Inventive Principle:
Principle #20Continuity of useful action

3Device complexity

If random accumulation transport is used in recirculation, then the system is simpler to implement, but pocket correlation is lost leading to collisions and jams

Engineering Contradiction:
Improvetransport control complexityVSAvoidcontainer transport reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent employs feedback-controlled synchronous transfer mechanisms that monitor and maintain pocket correlation throughout the recirculation loop. This ensures containers are always transferred at the correct position, preventing collisions and jams while maintaining reliable operation.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary synchronization actions to establish and maintain correct container positioning before transfers occur. Pocket correlation is proactively managed through coordinated actuator movements, ensuring containers are properly positioned to avoid collisions and jams.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3787987B1Devices and methods for can and bottle making recirculation systems
Publication Date: 2023.02.01 BELVAC PRODUCTION MACHINERY INC
  • EP3787987B1 patent drawingFigure 1A
  • EP3787987B1 patent drawingFigure 1B
  • EP3787987B1 patent drawingFigure 2

AI summary

A device for transporting articles through a recirculation system for forming or processing the articles. The device includes a top portion configured to contact an article and a drive nut positioned within a first aperture of the top portion. The device includes a hub portion having a second aperture and a plurality of ejection pins extending through a respective one of a plurality of apertures of the top portion. The device includes a paddle wheel rotatably coupled to the hub portion. The paddle wheel has a first and second plurality of prongs extending radially outward and offset in generally opposing directions. The paddle wheel includes a post projecting radially inward and positioned within a third aperture. The device includes a drive screw extending through the first, second, and third apertures and having a head configured to engage the post and a threaded end is configured to engage the drive nut.