Baler Wrapping Feeder Dynamics for Tangling Prevention

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Solution Overview

Problem

Existing baling press systems face challenges in precisely feeding and separating wrapping material without tangling or wrinkling, and in efficiently controlling the winding process, often resulting in complex and error-prone operations.

Innovation Solution

A baling press system with a single drivable feeder that moves towards and away from the insertion gap, featuring a pair of feed rollers with one being drivable and optionally coated for improved material handling, and a control system that synchronizes the feed drive independently of other baling press elements, allowing for precise and efficient feeding and separation of wrapping material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple feed rollers are arranged one behind the other to actively feed the winding material, then the feeding capability is improved, but the device becomes large and space-consuming and the synchronization becomes complex

Engineering Contradiction:
Improvefeeding capabilityVSAvoiddevice size and synchronization complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The feeding device is segmented into a movable feeder unit that can be positioned independently. This allows the feeding function to be concentrated in one location rather than distributed across multiple fixed rollers, reducing overall device complexity while maintaining feeding capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The feeder is made movable rather than fixed, allowing it to be positioned dynamically during the winding process. This dynamic positioning enables effective feeding without requiring multiple fixed feed rollers arranged in sequence, thereby reducing device size and synchronization complexity.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If the feeding device is moved away from the insertion gap during bale forming, then contamination from crop crumbs is reduced, but the feeding response time may increase

Engineering Contradiction:
Improvecontamination from crop crumbsVSAvoidfeeding response time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The feeding device is designed to be movable, allowing it to dynamically adjust its position between a retracted state during bale forming (minimizing contamination) and an advanced state during winding (enabling immediate feeding response).

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The feeding device can be preliminarily positioned or prepared in advance, so that when winding is required, it is already in optimal position to immediately begin feeding without significant delay, thus reducing response time while maintaining contamination protection.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If the feeder is driven at variable speed independently of other baling press elements, then precise feeding control is improved, but the control system complexity increases

Engineering Contradiction:
Improvefeeding precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The control system incorporates feedback mechanisms that monitor the winding process and automatically adjust the feeder speed accordingly. This feedback-based control achieves precise feeding without requiring complex manual synchronization, as the system self-regulates based on actual process conditions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The feeder control system is designed to be self-regulating, automatically adjusting its operation based on the winding process requirements without requiring complex external coordination. This self-service capability simplifies the overall control architecture while maintaining precision.

Inventive Principle:
Principle #25Self-service

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 ensures stable and precise feeding of wrapping material, preventing tangling or wrinkling, while minimizing contamination and optimizing bale winding cycles, achieving efficient and error-free wrapping processes.

Implementation Method 1

a pair of feed rollers, between which the winding material can be conveyed and of which at least one feed roller is designed to be drivable

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3090622B1Balling press for agricultural harvested materials
Publication Date: 2018.04.18 ALOIS POETTINGER MASCHFAB
  • EP3090622B1 patent drawingFigure 1
  • EP3090622B1 patent drawingFigure 2~4
  • EP3090622B1 patent drawingFigure 5~7

AI summary

The present invention relates to a baler for agricultural crops, comprising a bale forming chamber for forming the crop into bales and a wrapping device for wrapping the bales with a wrapping material such as net, film, and/or twine. The wrapping device includes a feed device for feeding the wrapping material through an inlet slot into the bale forming chamber. The feed device is designed to be movable towards the inlet slot into a feed position and away from the inlet slot into an intermediate and/or exit position. According to the invention, the feed device comprises only a driveable feed element for actively feeding the wrapping material into the inlet slot. This feed element is designed to be movable towards the inlet slot into the feed position and away from the inlet slot into an intermediate and/or exit position, and is driveable at least in the aforementioned feed position.