Bag Stack Centering Device With Movable Units

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Solution Overview

Problem

Existing packaging devices face challenges in reliably centering and processing stacks of bags, particularly with longer, narrower bags, which can lead to slippage and reduced processing speed due to inadequate lateral support.

Innovation Solution

A processing device equipped with a centering system featuring movable centering units driven by a belt mechanism, allowing for adjustable distance between units to precisely center bags within a stack, ensuring accurate positioning and preventing slippage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional centering devices are used, then basic centering function is provided, but bags can slip on the stack leading to crooked positioning and reduced processing speed

Engineering Contradiction:
Improveprocessing reliabilityVSAvoidprocessing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The centering units are made movable relative to each other through a drive device, allowing dynamic adjustment of the centering mechanism to adapt to different bag dimensions and maintain reliable centering without sacrificing processing speed. This dynamic capability prevents bag slippage while keeping the system efficient.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If fixed centering units are used, then device structure is simple, but bags with different dimensions cannot be reliably centered

Engineering Contradiction:
Improveadaptability to different bag dimensionsVSAvoidcentering device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The centering units are made movable relative to each other through a drive device, allowing dynamic adjustment of the centering mechanism to adapt to different bag dimensions and maintain reliable centering without sacrificing processing speed. This dynamic capability prevents bag slippage while keeping the system efficient.

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

The solution enhances processing reliability by maintaining precise bag positioning, preventing slippage, and enabling higher processing speeds, even with longer, narrower bags, thus improving overall operational efficiency.

Implementation Method 1

The drive device comprises at least one belt. At least one centering unit can be coupled or coupled to the belt at least temporarily.

Methodology Applied
Scientific EffectBelt drive mechanism:

Data Source

PatentEP2897870B1Method and device for processing stacks of bags
Publication Date: 2017.05.17 HAVER & BOECKER OHG
  • EP2897870B1 patent drawingFigure 1
  • EP2897870B1 patent drawingFigure 2~2b
  • EP2897870B1 patent drawingFigure 3

AI summary

The invention relates to a processing device and a method for processing a stack of bags consisting of a plurality of bags, wherein a deposition device is provided on which the stack of bags is deposited in a base position. The bags in the stack of bags have a bag length and a bag width. A centring device is provided, which comprises two oppositely arranged centring units which are arranged so as to be relatively movable toward one another and away from one another by means of a drive device.