Infinitely Adjustable Folding Wedge for Bag Packaging

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Solution Overview

Problem

Existing folding wedge devices for bag packaging machines require time-consuming and labor-intensive adjustments to produce packaging bags with different bottom fold dimensions, especially when frequently changing between bags with differently formed bottom gussets.

Innovation Solution

The folding wedge device features infinitely adjustable lateral distances between the end sections of the folding wedge strips, allowing for continuous adjustment of the distance between the end sections, which can be achieved through linear movement or rotation of the strips relative to each other, enabling precise control over the bottom fold dimension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If format parts at the tip of the folding wedge and counter tip are replaced or repositioned to change bottom gusset dimensions, then different bottom fold dimensions can be produced, but the adjustment process becomes time-consuming and labor-intensive

Engineering Contradiction:

Improvebottom fold dimension variabilityVSAvoidadjustment time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The folding wedge strips are made laterally adjustable along their longitudinal axis, transforming a static structure into a dynamic one. This allows the lateral distance between end sections to be continuously modified without replacing components, enabling quick adaptation to different bottom fold dimensions while maintaining structural integrity

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention changes the geometric parameter of the folding wedge strips by allowing lateral movement of the strips relative to each other. This parameter change (lateral distance between end sections) directly controls the bottom fold dimension, providing a simple yet effective way to adjust the output without complex repositioning operations

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If format parts are repositioned to produce different bottom gusset sizes, then versatility is improved, but operational complexity increases

Engineering Contradiction:

Improvebottom gusset size variationVSAvoidadjustment effort

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The folding wedge strips serve multiple functions: they maintain the wedge shape for foil deflection, provide lateral adjustability for different bottom fold dimensions, and guide the foil web through the folding process. This multi-functionality eliminates the need for separate format parts that would need to be repositioned or replaced

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 simplifies the production of packaging bags with varying bottom fold dimensions, reducing the time and effort required for adjustments, and allowing for efficient switching between different bag formats on the packaging machine.

Implementation Method 1

a folding wedge having two folding wedge strips which converge in a wedge shape from the feed area to the discharge area and are intended for deflecting the packaging foil

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

a counter tip arranged downstream of the folding wedge strips, as seen in the conveying direction of the packaging foil, for inserting a bottom fold between the packaging foil sections folded centrally on top of one another

Methodology Applied

Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12304169B2Folding wedge device for a bag packaging machine

Publication Date: 2025.05.20 SN MASCHENBAU

AI summary

A folding wedge device for a bag packaging machine for continuously adjusting a bottom fold of a bag, comprising: a feed area for continuously feeding a flat packaging foil; a discharge area opposite the feed area for discharging the packaging foil folded centrally by means of the folding wedge device, a folding wedge with two folding wedge strips converging towards one another in a wedge shape from the feed area to the discharge area for deflecting the packaging foil; a counter tip arranged behind the folding wedge strips in the conveying direction of the packaging foil for inserting the bottom fold between the packaging foil sections folded centrally on top of one another, the folding wedge strips having end sections pointing towards the counter tip; wherein a lateral distance between the end sections of the folding wedge strips is infinitely adjustable.