Automatic Strapping Device for Fibrous Bales
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Solution Overview
Problem
Existing automatic strapping devices for bales in fibrous materials, such as cotton, face challenges in efficiently adjusting the length of straps and simplifying their structure, leading to increased complexity and strapping times.
Innovation Solution
An automatic strapping device with a launching and welding assembly and a feeding assembly that allows for quick and simple adjustment of strap lengths between strapping cycles, enabling diverse strap lengths during a single cycle, and optimizing strapping times by integrating with pre-existing presses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If each launching and welding head is equipped with its own dedicated feeding assembly, then the strap length can be adjusted for each head, but the device structure becomes substantially complex
Solution Approach 1:
A single feeding assembly is designed to serve multiple launching and welding heads, making the device more compact and easier to operate while maintaining the ability to adjust strap lengths for each head through control means
2Device complexity
If a single feeding assembly feeds straps to multiple launching and welding heads sequentially, then device complexity is reduced, but strapping time increases and pressing operation time cannot be exploited
Solution Approach 1:
The feeding assembly is configured to supply straps to launching and welding heads during the pressing operation, performing the feeding action in advance before the strapping cycle completes, thus exploiting the pressing time and avoiding idle waiting
Solution Approach 2:
The system maintains continuous operation by feeding straps during the pressing phase, ensuring that the strapping process can proceed without interruption once the pressing operation finishes, thereby maintaining productive action throughout the entire cycle
3Device complexity
If straps of predefined unchangeable length are supplied to launching and welding heads, then device structure is simplified, but adaptability to different strap length requirements is lost
Solution Approach 1:
The system transitions from static predefined strap lengths to dynamic adjustable strap lengths by incorporating control means that can modify the length of straps supplied to each launching and welding head based on actual requirements
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 device enables efficient and flexible strapping operations, reducing strapping times and simplifying the device structure, while allowing operation with various types of presses, including overground rotating box presses.
Implementation Method 1
a welding unit, configured to join the ends of the portion of strap R following their overlapping
Data Source
AI summary
An automatic device for strapping bales in fibrous material, preferably in cotton, configured to tie a plurality of straps around a bale formed and pressed by a bale press. The device includes: a launching and welding assembly adapted to be arranged at a first side of the press and configured to launch a plurality of straps around the bale; a rear assembly adapted to be arranged at a second side of the press so as to define a strapping path around the bale; a feeding assembly configured to feed with a plurality of portions of straps the launching and welding assembly.