Bale Wrapping Control Unit for Dynamic Speed Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bale wrapping devices for round balers often experience significant extensions in wrapping time due to unforeseen events such as running out of wrapping material or tearing, which can be caused by constant drive speeds and lack of real-time process parameter monitoring.
Innovation Solution
A bale wrapping device equipped with a control and regulation unit that adjusts the drive speed of the wrapping table and arms based on real-time process parameters, including material properties and sensor feedback, to maintain optimal wrapping speed and prevent interruptions, ensuring the bale is wrapped within the regular time frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant drive speed is used for wrapping arms and table, then simple control system is maintained, but wrapping time is significantly extended when unforeseen events occur
Solution Approach 1:
The patent applies dynamics by transitioning from constant drive speed to variable drive speed. The control unit dynamically adjusts the drive speed of the wrapping table and/or wrapping arms based on real-time process parameters such as wrapping material properties, bale dimensions, and detected unforeseen events. This dynamic adjustment allows the system to maintain optimal wrapping speed under normal conditions and respond promptly to interruptions, thereby preventing significant wrapping time extensions while ensuring process continuity.
Solution Approach 2:
The patent implements feedback through sensors that continuously monitor process parameters during the wrapping operation. The control unit receives feedback information about the wrapping process status, wrapping material conditions, and any unforeseen events. Based on this feedback, the control unit automatically adjusts the drive speed to maintain efficient wrapping operation and minimize time loss when problems occur.
2Loss of time
If drive speed is increased to compensate for material end or tearing, then wrapping time is maintained, but wrapping quality may deteriorate due to excessive speed
Solution Approach 1:
The patent applies parameter changes by adjusting the drive speed parameter within an optimized range rather than simply increasing it. The control unit modifies speed parameters based on the specific unforeseen event detected, selecting appropriate speed values that balance time efficiency with wrapping quality. This ensures that speed adjustments maintain wrapping precision while compensating for material issues.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A baler-wrapper combination (1) for baling and wrapping round bales, in particular from harvested crops, comprises a round baler (2) for forming a round bale (6) and a bale-wrapping device (3) downstream of the round baler (2), comprising a wrapping table (9) and a wrapping arm (11) carrying at least one web-shaped wrapping material for wrapping the round bale (6) with wrapping material. The wrapping table (9) and/or the at least one wrapping arm (11) are rotatably driven about a plane of the round bale (6).To prevent unforeseen events affecting the winding time from leading to a significant extension of the winding time, the bale wrapping device (3) includes a control and regulation unit (17) which is configured to manipulate the drive speed of the at least one winding arm (11) and/or the winding table (9) as a function of at least one process parameter affecting the duration of the winding process.