Gravity Roller Bale Transfer Mechanism
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Solution Overview
Problem
Existing devices for pressing and wrapping round bales face challenges in safe and efficient transfer of bales from the press to the wrapping station, particularly due to high structural complexity, weight, and cost, as well as inadequate guidance and securing of bales during transfer, especially on slopes.
Innovation Solution
A transfer device with a fixed, immovable support and a power-operated swivel bracket that allows bales to roll or slide onto the support, reducing weight and structural complexity, and includes a roller to prevent damage, with a design that allows bales to roll onto the wrapping table by gravity, ensuring secure positioning and preventing rolling back.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a collecting fork with hydraulic swivel drive is used to pick up and transfer bales, then safe bale transfer is achieved, but the structural complexity and weight increase significantly
Solution Approach 1:
The invention extracts the bale pickup function from the complex hydraulic swivel drive system and transfers it to a simple gravity-based roller mechanism. The roller at the end of the transfer table picks up bales purely through gravity, eliminating the need for heavy hydraulic lifting components while maintaining safe and reliable bale transfer.
Solution Approach 2:
The transfer table with its roller utilizes gravity to automatically pick up and move bales without requiring external hydraulic power. The system is self-servicing, using the bale's own weight and gravitational force to accomplish the transfer, thereby reducing structural complexity and weight while ensuring reliable operation.
2Ease of operation
If a hydraulic system is used to lift the collecting fork, then bale transfer is enabled, but the weight and cost of the machine increase
Solution Approach 1:
The system eliminates the need for hydraulic lifting by using gravity as the driving force. The roller at the end of the transfer table allows bales to roll onto the wrapping table purely through gravitational acceleration, making the machine lighter and more cost-effective while maintaining ease of operation.
Solution Approach 2:
The invention replaces the hydraulic mechanical lifting system with a gravity-based mechanical roller system. This substitution eliminates heavy hydraulic components and reduces overall machine weight while still achieving the bale transfer function through simple gravitational force.
3Adaptability or versatility
If the transfer table is designed to handle bales of different sizes, then versatility is improved, but the guidance and securing during transfer becomes more difficult
Solution Approach 1:
The transfer table features a roller at its end that provides localized guidance and securing action. This roller ensures that bales of different sizes are properly guided and secured during transfer by providing a consistent contact point that adapts to various bale dimensions while maintaining reliable transfer control.
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 enables safe, rapid, and cost-effective transfer of bales of varying sizes, enhancing operational safety and efficiency, particularly on slopes, by simplifying the design and reducing the need for heavy hydraulic systems, while ensuring bales are securely fixed in position during transfer.
Implementation Method 1
the frame is preferably equipped with a roller at the end, which rolls on the cylindrical surface of the bale and thus also avoids damage to the net or twine binding of the bale
Implementation Method 2
the bale is transported to the wrapping table before it reaches the end position of the power-operated path of the transfer bracket has overcome the highest position and continues to roll onto the changing table by gravity
Data Source
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AI summary
The round baler has a transfer unit (8) which passes bales (13) from the baling press to a wrapping unit (3). The transfer unit comprises a sheet metal table (7) and a swiveling yoke (9) which rolls the bale to the wrapper. The bale is rolled uphill to its highest point, from which it falls into a recess in the wrapping table (17).