Packing Station Auto-Adjustment for Container Size Deviations

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Solution Overview

Problem

Current packaging systems face challenges with container dimensional deviations leading to jamming, defective packs, and long ramp-up times, requiring skilled personnel to adjust packing stations, resulting in high reject rates.

Innovation Solution

The system incorporates additional measuring devices to determine dimensional deviations of both containers and packaging material, allowing for automatic adjustments of working components at the packing station, including temperature control and rail adjustments, to prevent jams and ensure correct packing density without the need for trained operators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual adjustment of packing station components is used to handle container dimensional deviations, then the system can process containers with varying dimensions, but the ramp-up time increases and skilled operators are required

Engineering Contradiction:
Improveability to process containers with varying dimensionsVSAvoidramp-up time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system automatically measures container dimensions and adjusts packing station components without human intervention. The control system receives measurement data and autonomously controls actuators to reposition packaging material components, eliminating the need for skilled operators to manually adjust settings during ramp-up

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical adjustment by operators is replaced with an automated measurement and control system. Sensors measure container dimensions, and this data is transmitted to a control system that automatically actuates mechanical components to adjust the packing station, substituting human-operated mechanical systems with automated electro-mechanical systems

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

2Reliability

If manual adjustment of packaging material components is used when container dimensions deviate, then defective containers can be avoided, but trained operators must intervene leading to increased reject rates during adjustment periods

Engineering Contradiction:
Improveavoidance of defective containersVSAvoidautomatic adjustment capability
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The system implements a closed-loop feedback mechanism where sensors continuously measure container dimensions, the control system processes this data to determine if adjustments are needed, and actuators automatically adjust the packaging material components accordingly. This continuous feedback loop ensures defective containers are avoided while maintaining high automation without requiring operator intervention

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The packing station performs self-adjustment based on real-time container measurements. When dimensional deviations are detected, the system autonomously repositions packaging material components to match the container dimensions, eliminating the need for human operators to intervene and prevent defective packaging

Inventive Principle:
Principle #25Self-service

3Measurement precision

If container dimension measurement is implemented without automatic adjustment, then dimensional deviations can be detected, but manual readjustment is still required increasing operational complexity

Engineering Contradiction:
Improvecontainer dimension measurement accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The measurement system and adjustment mechanism are merged into an integrated automated system. The control system combines sensor data acquisition, dimensional analysis, and actuator control into a unified system that automatically translates measurements into component adjustments, eliminating the need for separate manual intervention steps and reducing overall operational complexity

Inventive Principle:
Principle #5Merging (Combining)

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

This solution significantly reduces ramp-up time, minimizes defective containers, and eliminates the need for specialized personnel by enabling real-time automatic adjustments to maintain optimal packing conditions.

Implementation Method 1

at least one measuring device (M1) for determining dimensional deviations of filled containers (B)

Methodology Applied
Scientific EffectOptical measurement: Photography

Implementation Method 2

an additional measuring device (M2) for determining dimensional deviations of the packaging material (Z)

Methodology Applied
Scientific EffectOptical measurement: Photography

Implementation Method 3

the temperature acting on the film packaging material can be changed... This prevents cracking of the shrunk film packaging material

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 4

In the shrink tunnel, the temperature is adjusted differently depending on the size of the product and the film size

Methodology Applied
Scientific EffectThermal contraction: Thermal Contraction

Data Source

PatentEP3475171B1Installation for the treatment of containers, and method for packaging filled containers
Publication Date: 2021.05.05 KRONES AG
  • EP3475171B1 patent drawingFigure 2
  • EP3475171B1 patent drawingFigure 3~1

AI summary

In an installation (A) for the treatment of containers (B), having at least one filling station (F) and a packing station (P) that processes film or blank-form packing material (FP, ZP) and has working components that act on the packing material and form packages, at least one measuring device (M1, M2) for determining dimensional deviations of filled containers (B), and a controller (CU) for automatically adjusting at least one installation station depending on a determined dimensional deviation, working components that act on the packing material (FP, ZP) during the packaging of the filled containers (B) are automatically adjustable in the packing station (P) via the controller (CU). In a method for packaging filled containers, working components of the packing station that act on packing material (FP, ZP) are adjusted automatically depending on measured dimensional deviations, in order to form packages of different dimensions with at least substantially the same packing density.