Capstan Mechanism for Bale Tie Removal
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Solution Overview
Problem
Existing machines for undoing and dispensing bales of animal litter or fodder are complex and inefficient in removing ties, nets, or protective films, particularly for cylindrical bales, requiring manual effort and being limited to handling only cylindrical shapes.
Innovation Solution
A machine equipped with a capstan mechanism, connected to a rotary drive, allows for easy removal and collection of ties, nets, or protective films by wrapping them around a cylinder or truncated cone, using a hydraulic motor with a control valve to manage the process, enabling efficient extraction and decompaction of bales with a trailer or towed design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual removal of ties is used, then the machine construction remains simple, but the ease of operation deteriorates and productivity decreases
Solution Approach 1:
The capstan mechanism automatically winds and removes ties from the bale without requiring manual intervention. The rotating drum self-engages the cut ties and pulls them off the bale, making the system self-servicing rather than requiring operator manual removal
Solution Approach 2:
The manual mechanical action of pulling ties off the bale is replaced by a automated capstan winding mechanism driven by a reel, substituting human effort with a mechanical automation system
2Ease of operation
If a saw and roller mechanism is used for cylindrical bales, then tie removal capability is improved, but the device complexity increases and adaptability to parallelepiped bales deteriorates
Solution Approach 1:
The capstan mechanism with rotating drum can effectively remove ties from both cylindrical and parallelepiped bales, providing universal functionality across different bale geometries without requiring separate specialized mechanisms for each shape
3Extent of automation
If a saw and roller mechanism is used, then tie removal is automated, but the device complexity increases
Solution Approach 1:
The tie removal function is segmented into distinct operational phases: cutting by the saw, winding by the capstan drum, and collection in the container. This segmentation allows each component to perform its specific function simply and effectively without requiring a complex integrated system
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 simplifies the removal process, reduces manual effort, and allows for handling both cylindrical and parallelepipedal bales, enhancing efficiency and usability by using a capstan mechanism to unwind and collect ties, nets, or films without tangling or overlapping, facilitating the distribution of animal litter or fodder.
Implementation Method 1
a capstan mechanism, connected to a rotary drive, for easy removal and collection of said ties, said nets or said protective films
Data Source
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AI summary
The present invention concerns a machine for undoing and dispensing bales of animal litter (Bt) or bales of fodder (Bt) comprising: - a means (Mt) for transporting a cylindrical or parallelepiped bale (Bt), a means (Mp) for decompacting this bale, the transport means being arranged to move the bale towards the decompacting means, - or a means (Md) for unrolling a cylindrical bale. According to the invention, the machine comprises a capstan (Cb) provided with a traction member comprising a rotating part (Pr, T1) connected to a rotational drive means (Mr), the rotating part (Pr, T1) being intended to receive at least one winding of links (L), of a net, surrounding the bale, or of a protective film wrapped around this bale, in order to pull it or them by adherence around the rotating part, during the operation of the rotational drive means (Mr), in order to extract them from the bale. It is therefore easy to remove these links, this net or this protective film, after they have been severed, before operating the machine in order to decompact the bale of animal litter or the bale of fodder.