Bale Processor Automatic Load Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Bale processors face challenges in maintaining an optimum power supply to the bale cutter due to non-uniform bale shapes and densities, leading to unpredictable load fluctuations on the engine/motor, exacerbated by the spatial relationship between the bale conveyor and rotor.

Innovation Solution

The system senses dynamic conditions of the drive system, adjusting conveyor speed and bale support bar positions to maintain an optimal correlation between load on the bale cutter and power input, allowing for efficient operation by reducing conveyor speed during high stress and increasing it during low stress conditions, and adjusting support bar positions to take smaller or larger bites of the bale accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the bale cutter operates at high speed to increase productivity, then processing efficiency is improved, but the engine/motor experiences unpredictable load fluctuations and cannot operate at optimum power

Engineering Contradiction:
Improvebale processing speedVSAvoidpower supply stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The bale conveyor speed is made dynamically adjustable based on real-time load sensing. The system continuously monitors the load on the bale cutter and automatically varies the conveyor speed to match the cutter's instantaneous power needs, transforming a static speed system into a dynamic one that adapts to changing conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A load sensing system provides real-time feedback about the bale cutter's power consumption to the control system. This feedback loop enables the controller to detect load variations and adjust the bale conveyor speed accordingly, ensuring the engine/motor operates within optimal power ranges while maintaining high productivity.

Inventive Principle:
Principle #23Feedback

2Productivity

If the bale conveyor speed is increased to improve efficiency, then processing throughput is improved, but the load on the bale cutter becomes unmanageable during high-density sections

Engineering Contradiction:
Improvebale infeed speedVSAvoidload on bale cutter
Core Design Contradiction:
ProductivityVSForce

Solution Approach 1:

The bale conveyor operates at variable speeds rather than a fixed high speed. The system dynamically adjusts the conveyor speed downward when high load is detected and upward when load is low, allowing the cutter to handle varying bale densities without overload while maintaining high average throughput.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of the bale conveyor (speed) in response to detected load conditions. By varying the speed parameter based on real-time feedback, the system optimizes the balance between productivity and manageable load levels on the cutter.

Inventive Principle:
Principle #35Parameter changes

3Force

If the engine/motor speed is reduced to manage load during difficult sections, then load control is improved, but overall processing efficiency decreases

Engineering Contradiction:
Improveload control on cutterVSAvoidprocessing efficiency
Core Design Contradiction:
ForceVSProductivity

Solution Approach 1:

Rather than operating at a reduced constant speed, the engine/motor operates at variable speeds that are optimized for each instantaneous condition. The system accelerates through easy sections and decelerates through difficult sections, maintaining high overall efficiency while managing peak loads effectively.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs periodic acceleration and deceleration cycles that match the varying density and difficulty of bale sections. This rhythmic variation in speed allows the cutter to maintain optimal load levels while processing the entire bale efficiently, rather than operating at a uniformly reduced speed.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS9521809B2Bale processor with automatic control
Publication Date: 2016.12.20 VERMEER MFG CO
  • US9521809B2 patent drawing
  • US9521809B2 patent drawing
  • US9521809B2 patent drawing

AI summary

A bale processor with a bale processing bin that has a bale cutter therein and an engagement section on the bale cutter for supporting part of a bale. A conveyor section supports another part of the bale. The bale processor has a load sensor that senses the load, or something that is a function of the load, on the bale cutter and a controller controls feeding of the bale to the bale cutter and/or the position of the engagement section, based on the function of the load on the cutter.