Lidding Station Compression Rollers for Container Alignment

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Solution Overview

Problem

Conventional lid application systems for containers, such as tobacco sachets, are inefficient and costly due to misalignment risks and the need for custom-designed, sequential processing, which limits high-speed packaging and adaptability to different container sizes and equipment.

Innovation Solution

A lidding station with a conveyor system and adjustable compression rollers, including a lid infeed chute and multiple compression rollers, allows for high-speed, flexible lid application to unrestrained containers of varying sizes, using a cleated belt or side drive belts to maintain container alignment and apply lids at an angle, ensuring reliable sealing without deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional sequential processing with fixed guides is used, then alignment precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improvealignment precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system divides the container handling into two stages: initial positioning using simple fixed guides, then transfer to a rotating indexing wheel with adjustable positioning mechanisms. This segmentation allows each stage to use appropriately complex mechanisms, reducing overall system complexity while maintaining precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The indexing wheel provides dynamic positioning capability, allowing the system to adjust container positions during the indexing process. This dynamic adjustment maintains alignment precision without requiring overly complex fixed guides throughout the entire system.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If custom-designed systems with fixed guides are used, then manufacturing precision is improved, but productivity decreases

Engineering Contradiction:
Improvealignment precisionVSAvoidproductivity
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The indexing wheel enables continuous indexing motion, allowing multiple containers to be positioned and processed in sequence without interruption. This continuous action maintains alignment precision while significantly improving productivity compared to sequential fixed-guide systems.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

Containers are pre-positioned in the fixed guides before being transferred to the indexing wheel. This preliminary positioning ensures alignment is established early, allowing the indexing wheel to focus on precise positioning and lid application, thereby improving overall productivity.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If high-speed packaging is implemented, then productivity is improved, but manufacturing precision deteriorates

Engineering Contradiction:
ImproveproductivityVSAvoidalignment precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The indexing wheel provides controlled deceleration and positioning at high speeds, allowing containers to be accurately positioned even during rapid cycling. This dynamic control maintains alignment precision while enabling high-speed operation and improved productivity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates positioning feedback mechanisms on the indexing wheel that detect and correct container positions during high-speed indexing. This feedback control ensures alignment precision is maintained even as productivity increases through faster processing.

Inventive Principle:
Principle #23Feedback

4Adaptability or versatility

If adjustable mechanisms are added for different container sizes, then adaptability is improved, but device complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The indexing wheel and compression roller assembly serve multiple functions: positioning containers of different sizes, applying lids, and adjusting for various container dimensions. This multi-functionality provides adaptability without requiring separate dedicated mechanisms for each function, thereby limiting the increase in device complexity.

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

Solution Approach 2:

The system incorporates adjustable positioning mechanisms and variable compression forces that can be dynamically modified for different container sizes. These adjustable features are integrated into the existing indexing wheel structure, providing adaptability while minimizing additional complexity compared to multiple dedicated systems.

Inventive Principle:
Principle #15Dynamics

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

Enables high-speed, cost-effective, and adaptable lid application to different container sizes and equipment, reducing misalignment issues and increasing packaging efficiency by using resilient compression rollers and adjustable mechanisms to ensure proper lid placement and sealing.

Implementation Method 1

pressing the lids onto the containers with at least first, second and third serially arranged compression rollers

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

the compression rollers comprise resilient materials, such as polyurethane or rubber, and are free-rolling

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11053032B1Lidder device
Publication Date: 2021.07.06 ALTRIA CLIENT SERVICES LLC
  • US11053032B1 patent drawing
  • US11053032B1 patent drawing
  • US11053032B1 patent drawing

AI summary

A lidding station for containers, including a conveyor structured and arranged for moving unrestrained containers in a conveyance direction; a lid infeed chute above said conveyor; and first, second and third compression rollers positioned above said conveyor and downstream of said lid infeed chute, and methods for affixing lids to containers.