Palletizing Device Vibration for Bag Stack Homogeneity

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Solution Overview

Problem

Palletizing devices often produce inhomogeneous stacks of sacks due to varying filling material and positioning, leading to mechanical instability and increased complexity and time in the palletizing process.

Innovation Solution

A palletizing device equipped with a vibrating mechanism that shakes the entire stack of sacks after each layer is formed, ensuring even distribution of filling material and alignment, thereby reducing inhomogeneities and enhancing mechanical stability without increasing mechanical demands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the minimum requirement for mechanical stability is set very high to counteract inhomogeneity, then the mechanical stability of sack stacks is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvemechanical stabilityVSAvoidpalletizing process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies mechanical vibration through a vibrating device that acts on the sliding surface or sliding table to vibrate the filled sacks during palletizing. This vibration homogenizes the positioning of sacks and layers, eliminating inhomogeneities that would otherwise require complex situation patterns to achieve mechanical stability. The vibration frequency and amplitude are controlled to optimize the homogenization effect while maintaining simple device architecture.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The patent changes the physical state and positioning parameters of filled sacks through controlled vibration. By adjusting vibration frequency, amplitude, and duration, the system optimizes sack positioning and layer alignment without requiring complex mechanical structures. This parameter-based approach allows simple device configurations to achieve high mechanical stability.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If complex situation patterns are used to ensure mechanical stability, then the reliability of sack stacks is improved, but the productivity decreases due to longer palletizing time

Engineering Contradiction:
Improvemechanical stabilityVSAvoidpalletizing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The vibrating device rapidly homogenizes sack positioning and layer alignment during the palletizing process, eliminating the need for time-consuming complex situation patterns. The vibration acts continuously or periodically to maintain homogeneity, significantly reducing the time required to achieve mechanically stable stacks while maintaining high productivity.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The vibration is applied in advance during the palletizing process to pre-homogenize sack positioning before final stacking. This preliminary action ensures that mechanical stability is achieved naturally through vibration-assisted alignment rather than through time-consuming post-adjustment or complex pattern formation, thereby maintaining high palletizing speed.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If filled sacks have different inhomogeneities in filling material and positioning, then the adaptability of the palletizing device is improved, but the mechanical stability of the stack deteriorates

Engineering Contradiction:
Improvehandling different sack typesVSAvoidmechanical stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The vibrating device effectively homogenizes various types of inhomogeneities including filling material distribution, sack positioning variations, and layer alignment differences. The vibration frequency and amplitude can be adjusted to accommodate different sack types and filling materials, maintaining mechanical stability across diverse palletizing scenarios without sacrificing adaptability.

Inventive Principle:
Principle #18Mechanical vibration

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

The vibrating device reduces inhomogeneities in the stack, allowing for more consistent mechanical stability, thus simplifying the palletizing process and reducing the time required to meet mechanical strength requirements.

Implementation Method 1

a vibrating device (120) is provided for vibrating the stack of sacks in order to reduce unevenness in the layers of the filled sacks in the stack of sacks (240)

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentEP2939961B1Palletizing device for stacking filled bags
Publication Date: 2018.06.13 WINDMOELLER & HOELSCHER GMBH
  • EP2939961B1 patent drawingFigure 1
  • EP2939961B1 patent drawingFigure 2
  • EP2939961B1 patent drawingFigure 3

AI summary

The invention relates to a palletizing device (100) for stacking filled bags (200) into a stack of bags (240), comprising a sliding device (110) with a sliding surface (112) and a sliding table (114) arranged next to the sliding surface (112), as well as a slider (116) for sliding a layer (230) of bags (200) from the sliding surface (112) onto the sliding table (114), further comprising a lifting device (140) for receiving the stack of bags (240) below the sliding table (114), wherein a shaking device (120) is provided for shaking the stack of bags (240) to reduce unevenness of the layers (230) of the filled bags (200) in the stack of bags (240).