Round Baler Wrapping Roll Braking for Clean Material Separation
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Solution Overview
Problem
Existing bale wrapping devices for round balers face challenges in adapting the speed of the wrapping material roll to individual phases, leading to entanglement or incorrect separation of the wrapping material, which can disrupt the baling process and potentially damage the material.
Innovation Solution
A bale wrapping device with a braking roller and a braking device that can be actuated by a separating device to control the rotational movement of the wrapping material roll, allowing for adjustable braking torque and synchronization with the separating process to optimize tensioning and unwinding of the wrapping material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wrapping material roll rotates freely without braking control, then the wrapping material can be fed smoothly into the bale chamber, but the wrapping material cannot be properly tensioned and separated in the separation phase
Solution Approach 1:
The patent applies a braking device that can dynamically adjust the rotational speed of the wrapping material roll during different operational phases. The braking device transitions from a static free-rotation state to a controlled braking state, enabling the system to adapt its characteristics to the specific requirements of each phase (feeding vs. separation).
Solution Approach 2:
The braking device modifies the rotational parameter of the wrapping material roll by applying a controlled braking torque. This parameter change enables the system to transition from high-speed free rotation during feeding to controlled lower-speed rotation during separation, resolving the contradiction between smooth feeding and proper separation.
2Reliability
If braking force is applied to the wrapping material roll, then the wrapping material can be tensioned and separated correctly, but the wrapping material may become entangled with pressing means or be damaged
Solution Approach 1:
The braking device operates with feedback control based on the operational phase. The system monitors the baling process phase (feeding, wrapping, or separation) and adjusts the braking torque accordingly, applying brake force only when needed for separation while avoiding it during feeding and wrapping phases when it could cause entanglement or damage.
Solution Approach 2:
The braking device provides dynamic control of the wrapping material roll rotation, transitioning smoothly between different braking states. This dynamic adjustment prevents sudden stops or excessive braking forces that could cause entanglement or material damage, while still achieving proper tensioning and separation when required.
3Device complexity
If the wrapping material roll speed is not adapted to individual phases, then the system structure remains simple, but the wrapping material tensioning and separation cannot be optimized
Solution Approach 1:
The braking device is integrated with the existing separating device, combining the functions of separation and speed control into a single coordinated mechanism. This merging approach achieves optimized wrapping material tensioning and separation without requiring a completely separate complex speed control system.
Solution Approach 2:
The braking device serves multiple functions: it controls the wrapping material roll speed during feeding, maintains appropriate tension during wrapping, and enables proper separation during the separation phase. This multi-functionality achieves optimized performance across all phases without proportionally increasing device complexity.
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
This solution prevents entanglement and damage to the wrapping material, ensuring optimal tensioning and separation, thereby maintaining a smooth baling process and extending the life of the wrapping material.
Implementation Method 1
a braking roller (50), the roll of wrapping material (32) being engageable with the braking roller (50)... a braking device (70) which interacts with the braking roller (50)... a rotary movement of the wrapping material roll (32) in engagement with the braking roller (50) can be braked
Data Source
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AI summary
The invention relates to a bale wrapping device (30) for a baler (10). The bale wrapping device (30) comprises a wrapping material roll (32) with the wrapping material (33), wherein the wrapping material roll (32) can be engaged with a brake roller (50), and a separating device (60) for separating the wrapping material (33) from the wrapping material roll (32). Furthermore, a braking device (70) is provided which interacts with the brake roller (50), wherein the braking device (70) can be actuated by means of the separating device (60) such that a rotational movement of the brake roller (50) can be braked by the braking device (70). The invention further relates to a round baler (10) with a bale wrapping device (30) and a method for operating a round baler (10).