Spinning Machine Dual Suction System Vacuum Bottleneck
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Solution Overview
Problem
Modern spinning machines with workstation-specific suction nozzles often face vacuum supply bottlenecks when multiple maintenance operations are performed simultaneously, leading to insufficient vacuum levels and increased downtimes.
Innovation Solution
The implementation of a dual suction system, where each workstation is connected to both a first and a second pneumatically independent suction system, allowing for separate and adjustable vacuum levels to ensure continuous thread searching and piecing operations, even when the primary suction system is overloaded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single suction system is used to supply vacuum to multiple workstations simultaneously, then the system structure remains simple, but the vacuum supply becomes insufficient when multiple maintenance operations are performed at the same time
Solution Approach 1:
The suction system is divided into multiple independent suction systems (first suction system and second suction system), each capable of independently supplying vacuum to the workstations. This segmentation allows simultaneous maintenance operations at multiple workstations without vacuum supply conflicts, resolving the contradiction between reliability and complexity by distributing the vacuum supply function across separate systems.
Solution Approach 2:
The invention introduces a second suction system with adjustable vacuum levels that can be independently controlled. When high vacuum is needed for thread searching, the second system can be activated or adjusted. This parameter change approach allows the system to adapt vacuum supply capacity to demand, improving reliability during peak usage without permanently increasing system complexity.
2Reliability
If vacuum level is increased to ensure sufficient supply during simultaneous maintenance operations, then thread searching reliability improves, but energy consumption increases
Solution Approach 1:
The second suction system is designed with adjustable vacuum levels that can be dynamically changed based on operational requirements. During thread searching operations, the vacuum level can be increased to ensure reliability. During normal operation or when only one workstation is being serviced, the vacuum level can be reduced to save energy. This dynamic adjustment resolves the contradiction between reliability and energy consumption.
Solution Approach 2:
The invention allows changing the vacuum parameter of the second suction system based on the specific operational phase. High vacuum is applied only when needed for thread searching, while lower vacuum levels are used during other operations. This selective parameter change ensures thread searching reliability without continuously consuming high energy.
3Reliability
If a second vacuum source is manually connected as needed, then vacuum supply can be increased, but the optimal vacuum level cannot always be made available due to operator discretion
Solution Approach 1:
The second suction system is designed to be automatically connected and activated based on the operational state of the spinning machine. The system can detect when thread searching is needed and automatically provide the required vacuum supply without requiring manual intervention from the operator. This self-service capability ensures optimal vacuum levels are always available while simplifying operation.
Solution Approach 2:
The invention implements a control system that monitors the operational state of the spinning machine and automatically adjusts the second suction system accordingly. When thread searching is detected or when vacuum demand increases, the system automatically activates or adjusts the second vacuum source to provide optimal vacuum levels. This feedback mechanism eliminates the need for manual judgment and ensures consistent optimal performance.
4Productivity
If service units are arranged directly at spinning stations for automatic thread seeking, then productivity improves, but vacuum supply bottlenecks occur when multiple stations require maintenance simultaneously
Solution Approach 1:
The invention divides the vacuum supply function into multiple independent suction systems, allowing each service unit at different workstations to draw vacuum from the same shared infrastructure without conflicting for resources. The first and second suction systems can simultaneously serve multiple workstations, enabling parallel maintenance operations while preventing vacuum supply bottlenecks, thus maintaining both high productivity and reliable vacuum supply.
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 configuration ensures reliable thread searching and reduces machine downtimes by maintaining sufficient vacuum levels, enabling increased production and energy-efficient operation by allowing the second suction system to supply higher vacuum levels as needed.
Implementation Method 1
a first suction system, which comprises at least a first vacuum duct extending along the workstations of the spinning machine and at least a first vacuum source, is provided, wherein the spinning devices of the workstations are connected to the first suction system
Implementation Method 2
the spinning machine comprises at least one second suction system, which comprises at least one second vacuum duct extending along the workstations of the spinning machine and at least one second vacuum source, wherein the suction nozzles of at least one first partial number of the workstations are connected to the second suction system
Data Source
AI summary
A spinning machine and associated operational method include a plurality of adjacently arranged workstations that each have a spinning device for making a thread and a suction nozzle for seeking a thread end on a package. A first suction system includes a first vacuum source and a first vacuum duct extending along the workstations, the spinning devices of the workstations connected to the first suction system. A second suction system includes a second vacuum source and a second vacuum duct extending along the workstations, the suction nozzles of at least a first partial number of the workstations connected to the second suction system. The first suction system and the second suction system are pneumatically completely disconnected from one another.