Wrapping Device Guide Element for Round Baler Feeding
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Solution Overview
Problem
Existing wrapping devices for round balers often fail to reliably feed wrapping material to the bale during the wrapping process, leading to incomplete or unsuccessful wrapping, with issues such as material not being fed at the beginning, being blown out due to draft or windy conditions, or unintentionally wrapping around pressing means.
Innovation Solution
A wrapping device with a guiding means that holds the wrapping material in contact with the pressing means of the round baler, particularly a drivable press roller, to ensure continuous feeding and prevent material from being blown out or stuck to other parts, featuring a flexible and elastic design to accommodate varying material thickness and prevent blockages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wrapping material is fed through a feed gap to a round bale, then the material can envelop the bale, but the material may not be fed reliably at the beginning or may be blown out by draft or wind
Solution Approach 1:
A guide element is introduced as an intermediary component between the wrapping material supply and the bale. This guide element extends into the feed gap and maintains continuous contact with the wrapping material, guiding it reliably through the feed gap and preventing it from being blown out by draft or wind before it reaches the bale.
Solution Approach 2:
The guide element is positioned to make contact with the wrapping material before it enters the feed gap and before the wrapping process begins. This preliminary guidance ensures the material is properly positioned and secured early in the process, preventing feeding failures at the beginning of wrapping.
2Reliability
If wrapping material is fed through a feed gap, then the bale can be wrapped, but the material may unintentionally wrap around pressing devices
Solution Approach 1:
The guide element acts as a controlled intermediary that directs the wrapping material exclusively toward the bale. By extending into the feed gap and maintaining contact with the material, it prevents the material from deviating and unintentionally wrapping around pressing devices while still allowing proper bale wrapping.
3Reliability
If a rigid guide element is used to hold wrapping material, then the material can be kept in contact with pressing elements, but it may clog or jam with varying material thickness
Solution Approach 1:
The guide element is designed with elastic or flexible properties, allowing it to dynamically adapt to varying wrapping material thicknesses. This flexibility enables continuous contact with the pressing elements and wrapping material without rigid constraints that could cause clogging or jamming, while still maintaining reliable guidance.
4Duration of action of stationary object
If the guide element extends further into the feed gap, then the wrapping material can be kept in contact with pressing elements continuously, but the guide element may interfere with other components
Solution Approach 1:
The elastic or flexible nature of the guide element allows it to extend into the feed gap when needed to maintain continuous contact with the wrapping material, while naturally retracting or adapting to avoid interference with other components. This dynamic behavior enables extended duration of contact without creating permanent obstructions.
Data Source
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Figure 3A~3B
AI summary
A wrapping device (38) for a round baler (10), in particular an agricultural baler for forming round cylindrical bales, is described, comprising means for supplying a wrapping material (40) through a feed slot (42) to a round bale (12) arranged in a pressing chamber (26), wherein at least one guiding element (46) is provided that can keep the wrapping material (40) at least partially in contact with at least one pressing element of the round baler (10), preferably adjoining the feed slot (42) at the bottom, and in particular being driveable. Furthermore, a round baler (10) with such a wrapping device is proposed.