Variable Baling Chamber for Continuous Round Bale Formation

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Solution Overview

Problem

Existing continuous balers face issues such as non-uniform bale formation, difficulty in binding material placement, complex transfer mechanisms, and high energy consumption due to fixed chamber dimensions, leading to inefficiencies and increased machine complexity.

Innovation Solution

A baler design with a variable baling chamber that allows continuous bale formation by transitioning crops through a feeding channel and starter rollers, enabling simultaneous bale rotation and binding, while maintaining constant pressure and uniform distribution, using a feeding system that switches orientations to accommodate bale growth without stopping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed baling chamber is used, then the structure is simple, but the bale density is limited and the final dimension is fixed and not adaptable

Engineering Contradiction:
Improvestructural simplicityVSAvoidbale density
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The baling chamber is designed with movable walls that can dynamically adjust their position during the baling cycle. The first wall moves to define a first baling volume, then a second wall moves to define a second baling volume, allowing the chamber to adapt its dimensions continuously rather than being fixed, thereby achieving higher and more adaptable bale density

Inventive Principle:
Principle #15Dynamics

2Reliability

If the baler stops to bind the bale, then the binding can be performed properly, but time is wasted and tractor operations are complicated

Engineering Contradiction:
Improvebinding qualityVSAvoidbaling speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The baling operation is made continuous by having multiple walls that can be moved sequentially. While one wall is moving to complete a bale, another wall can begin forming the next bale, allowing the binding process to occur without interrupting the overall baling flow, thus maintaining productivity while ensuring proper binding

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If a variable baling chamber is used, then flexibility and bale density are improved, but the device complexity increases

Engineering Contradiction:
Improvebale dimension adaptabilityVSAvoidchamber mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The variable baling chamber is segmented into multiple movable walls (first wall, second wall, third wall, fourth wall) that can be controlled independently. This segmentation allows each wall to perform specific functions at specific times, simplifying the control logic for each individual component while achieving complex overall functionality through coordinated operation

Inventive Principle:
Principle #1Segmentation

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 non-stop bale formation with uniform crop distribution and consistent pressure, simplifying the binding process and reducing energy consumption by allowing continuous operation.

Implementation Method 1

a conveying assembly, for rotating the crops received in the baling chamber

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

a feeding system, for feeding the crops from the pick-up device to the baling chamber

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP3975691B1Baler connectable to a tractor for providing round bales and method for producing round bales
Publication Date: 2025.10.08 KVERNELAND GRP RAVENNA
  • EP3975691B1 patent drawingFigure 1
  • EP3975691B1 patent drawingFigure 2
  • EP3975691B1 patent drawingFigure 3

AI summary

A baler (1) connectable to a tractor for providing round bales (B) comprises: a baling chamber (2) for receiving crops for forming the bale (B), the baling chamber (2) being supported on a wheel axle; a conveying assembly (3), including a belt (30) which at least partially delimits the baling chamber (2) for imparting a rotating movement to the crops contained in the baling chamber (2); a pick-up device (5), configured for picking-up the crops from a field; a feeding system (4), configured for feeding the crops to the baling chamber (2); a binder (6), configured for binding a formed bale with a fastening element (60). The binder (6) is positioned at a lower height than the baling chamber with respect to the ground surface on which the baler rests, and is configured to guide the fastening element into the baling chamber along an upwardly trajectory.