Elastic Membrane Guide for Impurity Separation in Carding Machines
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Solution Overview
Problem
Existing devices for separating impurities from fiber material in cards or cleaners require adjusting the suction chamber position in conjunction with the separating knife, necessitating additional guide elements and flexible connections to maintain efficient deflection and suction, which complicates the system.
Innovation Solution
A device with a separating element and a suction pipe, where the first guide is an elastic membrane and the second guide and suction pipe are stationary, allowing for radial and tangential adjustment of the separating element without altering the suction chamber's position, ensuring constant suction speed and aerodynamically optimal airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction chamber position is adjusted together with the separating knife, then the suction performance is maintained, but the device complexity increases due to additional guide elements and flexible connections
Solution Approach 1:
The suction chamber is extracted from the moving assembly and fixed to the machine frame, separating it from the separating element's adjustment mechanism. This eliminates the need for flexible connections and additional guide elements, while the stationary suction chamber maintains effective suction through the aerodynamic guidance of impurities by the membrane and second guide.
Solution Approach 2:
The first guide designed as an elastic membrane acts as an intermediary between the separating element and the stationary suction chamber. This membrane guide dynamically adapts to the separating element's position changes while maintaining a sealed connection, eliminating the need for complex flexible connections.
2Productivity
If the separating element is adjusted radially and tangentially, then the impurity separation efficiency is improved, but the position of the suction chamber must change requiring additional guide elements
Solution Approach 1:
The suction chamber is extracted from the adjusting mechanism and fixed to the machine frame, allowing the separating element to be adjusted independently without moving the suction chamber. The stationary suction chamber remains effective due to the aerodynamic guidance provided by the membrane and second guide.
Solution Approach 2:
The first guide as an elastic membrane automatically adapts to the separating element's position changes through its elasticity, eliminating the need for additional active guide elements or tracking mechanisms. The membrane self-adjusts to maintain the connection between the moving separating element and the stationary suction chamber.
3Reliability
If a variable position suction chamber is used, then the suction performance is maintained during adjustment, but flexible connection to exhaust air system is required
Solution Approach 1:
The suction chamber is extracted from the variable position assembly and fixed to the machine frame, eliminating the need for flexible connections to the exhaust air system. The stationary suction chamber maintains effective suction through the aerodynamic guidance of impurities by the membrane and second guide.
Solution Approach 2:
The first guide as an elastic membrane serves as an intermediary that maintains a sealed connection between the moving separating element and the stationary suction chamber, replacing the need for flexible connections to the exhaust air 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
This configuration maintains consistent suction performance and eliminates the need for additional guide elements, providing efficient impurity separation and adaptation to varying geometric conditions without requiring tracking of the suction pipe or guide between the suction pipe and separating element.
Implementation Method 1
The first guide, starting from the separating element, and a second guide, opposite the first guide, starting from the counter-element, are provided for transferring the impurities from the separating gap to the suction pipe. The first guide is designed as an elastic membrane
Implementation Method 2
A device with a separating element and a suction pipe, where the first guide is an elastic membrane and the second guide and suction pipe are stationary, allowing for radial and tangential adjustment of the separating element without altering the suction chamber's position, ensuring constant suction speed
Data Source
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AI summary
The present invention relates to a device for separating impurities from a fibrous material (6) in a carding machine (1) or a cleaner, comprising a roller (17) having a garnished surface (18), a separation element (20), a counter element (21), and a suction tube (22), wherein a separation gap (25) formed by the separation element (20) and the counter element (21) is provided. To transfer the impurities from the separation gap (25) to the suction tube (22), a first guide (23) extending from the separation element (20) and a second guide (24) opposite the first guide (23) extending from the counter element (21) are provided. The first guide (23) is designed as an elastic membrane, and the second guide (24) and the suction tube (22) are fixed in position.