Optical Centering for Packaging Treatment Modules

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Solution Overview

Problem

Existing treatment machines for packaging materials, such as labeling machines, face challenges in achieving high repeatability and positioning accuracy when docking and undocking treatment modules, leading to significant deviations from the target position and subsequent deterioration in labeling quality.

Innovation Solution

Incorporation of optical adjustment and setting aids, including laser beam-supported systems, to detect and correct deviations in the position of docked treatment modules along multiple axes, ensuring precise alignment and optimal processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If mechanical docking and centering elements are used to position treatment modules, then the module can be quickly docked and undocked, but high repeatability and positioning accuracy (within 1/10ths of a millimeter) cannot be achieved

Engineering Contradiction:
Improveease of dockingVSAvoidpositioning accuracy
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent replaces purely mechanical positioning with an optical measurement and adjustment system. Optical sensors detect the actual position of the treatment module with high precision, and the position is adjusted accordingly, eliminating reliance on mechanical tolerances alone for achieving sub-millimeter positioning accuracy.

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

Solution Approach 2:

The patent implements a feedback mechanism where the actual position of the treatment module is measured using optical sensors after docking, compared to the target position, and used to drive adjustments. This closed-loop feedback enables high repeatability by continuously monitoring and correcting position deviations.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If treatment modules are reset during test runs or setting modes to achieve optimal positioning, then labeling quality is maintained, but the process becomes time-consuming

Engineering Contradiction:
Improvelabeling qualityVSAvoidsetup time
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent performs preliminary positioning using optical sensors immediately after docking, before the treatment module is put into operation. The actual position is detected and adjusted in advance, eliminating the need for time-consuming reset operations during test runs or setting modes.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual or mechanical resetting operations with automated optical measurement and adjustment. The optical sensors quickly detect position deviations, and the system automatically adjusts the treatment module to the correct position, significantly reducing setup time while maintaining labeling quality.

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

3Adaptability or versatility

If treatment modules are docked repeatedly, then adaptability to different labeling tasks is achieved, but deviations from target position occur leading to deterioration in labeling quality

Engineering Contradiction:
Improveadaptability to labeling tasksVSAvoidlabeling quality consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent uses optical sensors to continuously monitor the actual position of treatment modules after each docking operation. The measured position is fed back to the adjustment mechanism, which compensates for deviations. This feedback loop ensures consistent labeling quality across multiple docking cycles, even when different modules are used.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The treatment module positioning system is self-correcting. After docking, the optical sensors automatically detect position deviations, and the adjustment mechanism autonomously corrects them without external intervention. This self-service capability maintains reliable labeling quality regardless of how many times modules are docked or undocked.

Inventive Principle:
Principle #25Self-service

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 quick and easy detection and readjustment of treatment modules to achieve the desired position, improving labeling quality and reducing the time-consuming process of resetting modules during test runs or setting modes.

Implementation Method 1

at least one laser (15), whose laser beam (14) is directed onto a marking (16)

Methodology Applied
Scientific EffectLaser beam: Laser

Data Source

PatentEP2462028B1Treatment machine for treating packaging means
Publication Date: 2016.07.13 KHS GMBH
  • EP2462028B1 patent drawingFigure 1
  • EP2462028B1 patent drawingFigure 2
  • EP2462028B1 patent drawingFigure 3

AI summary

The invention relates to a device for treating packaging means, particularly in the form of bottles and similar containers, comprising a conveying element that can be used to move the packaging means past at least one treatment module provided on at least one operating position, which module can be coupled to and decoupled from the treatment position, and mechanical coupling and/or centering means determining the position of the at least one treatment module after docking. The invention is characterized in that, in order to detect possible deviations of the treatment module coupled to the treatment machine from the target position, and/or to realign the coupled treatment module into the target position, at least one optical centering and adjusting means is provided, some of the functional elements of which are provided on the treatment module, and some are provided on the treatment machine.