Bale Wrapping End Blade Transfer Mechanism
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Solution Overview
Problem
Conventional bale wrapping systems in agricultural machines are encumbered by the need for a roller and counter-roller, which complicates design, increases cost, and compromises operation due to deformation and structural complexity, while also requiring significant encumbrances and increased complexity.
Innovation Solution
An apparatus with a transfer and delivery device featuring an end blade that moves along a work path between two limit positions of equal height, allowing for the ergonomic and efficient unwinding and wrapping of bales without the need for rubberized rollers, incorporating a braking system to control the reel and prevent material loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a roller and counter-roller are used to tension and unwind the wrapping flap, then the wrapping function is achieved, but the device complexity and encumbrances increase
Solution Approach 1:
The patent removes the roller and counter-roller components from the wrapping system, replacing them with a direct flap delivery mechanism. The flap is tensioned and delivered without requiring these additional mechanical elements, thereby reducing device complexity while maintaining the wrapping function.
Solution Approach 2:
The patent introduces a flap delivery mechanism that acts as an intermediary between the reel and the bale, eliminating the need for rollers. This intermediary system directly tensions and delivers the flap to the chamber, simplifying the overall structure.
2Reliability
If a roller and counter-roller are used to tension and unwind the wrapping flap, then the wrapping function is achieved, but the manufacturing cost increases
Solution Approach 1:
By extracting the roller and counter-roller components from the system, the patent reduces the number of parts that need to be manufactured and assembled. This elimination of components directly lowers manufacturing costs while preserving the essential wrapping function through the simplified flap delivery mechanism.
3Ease of operation
If a roller is used to tension the wrapping flap, then the unwinding is achieved, but the roller deforms locally over time compromising operation
Solution Approach 1:
The patent eliminates the roller component that suffers from local deformation over time. By removing this problematic element and implementing a direct flap delivery system, the invention prevents the deformation issue while maintaining reliable unwinding and tensioning operations.
Data Source
AI summary
An apparatus for processing bales, for agricultural machines provided with a chamber for forming a substantially cylindrical bale. The apparatus includes at least one structure for supporting a reel of banded material, of the type of a net, a polymeric film, and the like, designed to wrap the bale. The apparatus includes means of movement of a device for the transfer and delivery of an end flap of the reel to the forming chamber; such device is provided with an end blade which can move along a work path, from a first limit position, in which the blade is proximate to the reel supported by the structure, for the withdrawal of the end flap, to a second limit position, in which the blade is facing toward the chamber, for the delivery of the flap to the chamber, and vice versa, such limit positions having substantially the same height from the ground.