Pressure-Bar Slat Alignment in Magazines Without Manual Stops

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Solution Overview

Problem

Existing systems for stacking elongated objects like lumber or battens often result in misalignment due to vibrations and inaccuracies during feeding and unloading, requiring manual operator intervention to align ends on the same plane.

Innovation Solution

A device with adjustable pressure bars on a slide, actuated by a linear motor, aligns elongated objects by moving them against a stop surface, ensuring ends are aligned without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual operator intervention is used to align elongated objects in the magazine, then alignment precision is improved, but productivity is reduced due to shutdowns and manual operation time

Engineering Contradiction:
Improvealignment precisionVSAvoidproductivity
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The device enables automatic alignment of elongated objects in the magazine without requiring operator intervention. The pressure bars automatically push objects against the stop surface to align their ends, eliminating manual adjustment operations and maintaining continuous system operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical alignment operation is replaced by an automated device consisting of pressure bars mounted on a movable carriage. The carriage is actuated by a linear motor to automatically position pressure bars that push objects into alignment against the stop surface.

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

2Manufacturing precision

If the system is shut down for manual alignment, then alignment precision is improved, but loss of time increases

Engineering Contradiction:
Improvealignment precisionVSAvoidloss of time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The alignment device operates continuously without requiring system shutdowns. The carriage can be actuated at any time to align objects in the magazine, maintaining continuous productive action while ensuring proper alignment when needed.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The device performs alignment automatically without operator intervention, eliminating the time loss associated with manual intervention and system shutdowns.

Inventive Principle:
Principle #25Self-service

3Device complexity

If pressure bars are fixed in position, then device complexity is reduced, but adaptability to different object dimensions is reduced

Engineering Contradiction:
Improvedevice complexityVSAvoidadaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The pressure bars are mounted on a movable carriage that can be actuated along the longitudinal axis of the magazine. This dynamic positioning capability allows the pressure bars to reach different objects at various depths in the magazine, providing adaptability to different object dimensions and stack configurations without increasing individual bar complexity.

Inventive Principle:
Principle #15Dynamics

4Manufacturing precision

If multiple pressure bars are used to align multiple objects, then manufacturing precision is improved, but device complexity increases

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

Solution Approach 1:

Multiple pressure bars are combined on a single movable carriage structure. This allows simultaneous alignment of multiple objects in the magazine while sharing common actuation mechanisms, reducing overall device complexity compared to having separate actuation systems for each pressure bar.

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

Automatically aligns elongated objects within existing magazines, allowing continuous operation without shutdowns, and adapts to different dimensions and orientations of objects.

Implementation Method 1

A spring is provided that loads each pressure rod away from the carriage at its free end

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

The carriage itself is adjustable by a linear motor in the direction of the longitudinal extension of the elongated objects

Methodology Applied
Scientific EffectLinear motor: Linear Motor

Data Source

PatentEP4480864B1Device for rectifying elongated objects
Publication Date: 2026.04.01 TEAM CONSTRUCT MASCHENBAU GES
  • EP4480864B1 patent drawingFigure 1
  • EP4480864B1 patent drawingFigure 2
  • EP4480864B1 patent drawingFigure 3

AI summary

A device for aligning elongated objects, such as slats (1), which are arranged one above the other in a magazine, comprises a slide (3) with several pressure bars (8). The slide (3) is movable back and forth in the direction of the longitudinal extension of the elongated objects, such as the slats (1), so that the slats (1) can be moved in their longitudinal direction until they abut a stop surface (2) arranged opposite the slide (3). In this position, the ends of the slats (1) adjacent to and in contact with the stop surface (2) are aligned with each other, so that the slats (1) are aligned.