Round Baler Binding Apparatus Deflecting Edge Tension
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Solution Overview
Problem
Existing binding apparatuses for round balers result in inadequate cut surfaces and premature wear of cutting knives due to low twine tension during the severing process, leading to fraying and interruptions in the bale-winding process.
Innovation Solution
A binding apparatus with a deflecting edge on the cutting element guide that increases twine tension before contact with the cutting edge, utilizing a beveled or indented surface to build tension and facilitate a clean, sliding cut, and a protective bar to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the binding twine is severed with low tension using a cutting knife guide, then the cutting operation is simple, but the cut surface is inadequate and the cutting knife wears quickly
Solution Approach 1:
The deflecting edge is positioned upstream of the cutting edge to pre-deflect the binding twine and build tension before the cutting contact. This preliminary action ensures that when the cutting edge engages the twine, the twine is already under sufficient tension to produce a clean cut surface, resolving the contradiction between simple cutting operation and cut surface quality.
Solution Approach 2:
The deflecting edge changes the physical state of the binding twine by increasing its tension parameter before cutting. By transforming the low-tension state to a high-tension state through the deflecting edge, the system achieves both ease of cutting and high cut surface quality without complex mechanisms.
2Ease of operation
If the binding twine is severed with low tension, then the cutting process is straightforward, but the cutting knife experiences premature wear
Solution Approach 1:
The deflecting edge performs preliminary action by building tension in the binding twine before the cutting knife engages it. This ensures that during the cutting process, the knife operates under optimal conditions with sufficient twine tension, reducing wear and extending service life while maintaining operational simplicity.
Solution Approach 2:
The deflecting edge acts as an intermediary element between the binding twine and the cutting knife. It mediates the interaction by pre-tensioning the twine, thereby protecting the cutting knife from premature wear while keeping the cutting process straightforward.
3Device complexity
If the binding twine meets the cutting blade edge to edge with low tension, then the cutting operation is simple, but fraying occurs and threading is hindered
Solution Approach 1:
The deflecting edge performs preliminary action to tension the binding twine before cutting contact. This ensures that when the cut surface is created, the twine is under sufficient tension to prevent fraying and ensure clean cutting, thereby maintaining reliability of subsequent threading operations without increasing device complexity.
Solution Approach 2:
The system changes the tension parameter of the binding twine using the deflecting edge before cutting. This parameter change from low to high tension ensures reliable cutting and prevents fraying, maintaining threading process reliability while keeping the cutting mechanism simple.
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 reduces wear on the cutting edge and improves the cut surface quality, ensuring a clean severance of the binding twine with increased tension, thereby minimizing fraying and maintaining process efficiency.
Implementation Method 1
the binding twine slides over the surface of the deflecting edge
Implementation Method 2
binding twine tension being built up
Implementation Method 3
the deflecting edge can be beveled and form a kind of oblique plane or ramp, over which the binding twine is guided
Implementation Method 4
the binding twine is released in a catapult-like manner from the recess after the binding twine tension has increased in a corresponding manner
Data Source
AI summary
A binding apparatus for a round baler binding a pressed bale with a binding twine. The binding apparatus has at least one binding twine guide, at least one binding twine guided by the binding twine guide and at least one cutting device for severing the binding twine after a binding operation. The cutting device has a cutting element guide and, formed on the cutting element guide, a cutting element holder to which is fastened a cutting element which has a cutting edge, in order to sever the binding twine, is guided to the binding twine by the cutting element guide and is brought into contact with the binding twine. In order to reduce wear on the cutting element and to increase the cut quality at the binding twine, a deflecting edge is formed on the cutting element guide between the cutting element and the binding twine, said deflecting edge displacing the binding twine in a deflecting movement, with binding twine tension being built up, before the binding twine is brought into contact with the cutting edge.