Spinning Line Bobbin Exchange Peg Carrier Mechanism
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Solution Overview
Problem
Current systems for exchanging bobbins and tubes in spinning lines face inefficiencies in removal, exchange, and cleaning processes, leading to increased downtime and reduced productivity due to the increasing number of spindles and the need for faster automation.
Innovation Solution
An integrated exchange device with a peg carrier group, electric motors, and synchronized radial and rotary motion mechanisms facilitates the removal of empty or dirty tubes, cleaning, and exchange of bobbins with empty tubes, optimizing the process through precise control and automation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual or conventional automated systems are used for bobbin and tube exchange, then the process is simpler to implement, but the execution time is longer and productivity is reduced
Solution Approach 1:
The exchange device is divided into multiple independent peg carrier groups, each capable of performing specific functions (removal, cleaning, exchange). This segmentation allows parallel operation of multiple spindles simultaneously, dramatically reducing overall execution time while keeping each individual carrier group relatively simple in structure
Solution Approach 2:
Each peg carrier group is designed as a multi-functional unit that can perform multiple operations (holding tubes, cleaning tubes, exchanging bobbins) within a single integrated structure. This universality reduces the need for separate dedicated devices for each function, optimizing productivity without proportionally increasing device complexity
2Productivity
If the number of spindles is increased to meet production demands, then productivity potential increases, but the exchange process becomes more complex and time-consuming
Solution Approach 1:
The system uses multiple independent peg carrier groups that can operate simultaneously on different spindles. This parallel segmentation allows the exchange process to scale with the number of spindles without proportionally increasing downtime, as each carrier group independently serves its assigned spindles
Solution Approach 2:
The peg carrier groups are designed to continuously cycle through removal, cleaning, and exchange operations without idle waiting time. The synchronized movement and immediate replacement capability ensure that useful action continues uninterrupted across all spindles, minimizing downtime even as spindle count increases
3Loss of time
If conventional cleaning processes are used for dirty tubes, then the cleaning mechanism is simpler, but the overall execution time for removal, cleaning, and exchange is longer
Solution Approach 1:
The cleaning device is merged with the peg carrier groups and integrated into the main exchange mechanism. Dirty tubes are cleaned in-place on the peg carriers during the exchange cycle, eliminating separate cleaning steps and reducing overall execution time while sharing structural components with the exchange device
Solution Approach 2:
Dirty tubes are cleaned before being reused, during the same operational cycle when they are being handled for exchange. This preliminary cleaning action ensures tubes are ready for immediate reuse without waiting for separate cleaning operations, reducing total execution time while integrating cleaning into the existing device flow
Data Source
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AI summary
A tubes (12,14) / bobbins (10) exchange device (50) for a spinning line comprises a peg carrier group (100) rotatable and vertically movable, carrying radially movable carriages (64), each carrying pegs (84a, 84b) for supporting the bobbins (10) or the tubes (12,14). The motion of the peg carrier group and of the carriages occurs by means of electric motors (54, 55, 90).