Textile Thread Piecing Feeder Unit Cover Element Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing thread piecing devices in textile machines face challenges in reliably sealing the entry opening of the suction nozzle during thread search, leading to inefficient suction and increased energy consumption.
Innovation Solution
A device with a movable feeder unit and a cover element featuring an open contour thread-guiding element, which increases flexibility and adapts well to the suction nozzle's surface, combined with a curved or beveled design and a sealing lip, ensures effective sealing and reduced energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover element is introduced to seal the entry opening during thread search, then suction reliability is improved, but device complexity increases
Solution Approach 1:
The cover element is merged with the feeder unit, combining the sealing function with the existing thread feeding mechanism. This integration avoids adding a separate sealing device and reduces overall system complexity while ensuring reliable sealing during thread search operations
Solution Approach 2:
The cover element serves multiple functions: it seals the entry opening during thread search, guides the thread during piecing operations, and can be positioned in different states (open/closed) to accommodate different operational phases. This multi-functionality reduces the need for additional components
2Adaptability or versatility
If the feeder unit is made movable to enable thread loop formation, then thread piecing flexibility is improved, but device complexity increases
Solution Approach 1:
The feeder unit is designed with movable components that can change position dynamically during operation. The thread-guiding element can move between different positions to facilitate thread loop formation while maintaining a relatively simple overall structure through controlled mobility rather than complete redesign
Solution Approach 2:
The thread-guiding element is nested within the suction duct during thread search, and the feeder unit can be positioned within or alongside the suction nozzle assembly. This nesting approach allows movable components to be integrated into the existing structure without requiring separate housings or complex mounting mechanisms
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 provides reliable sealing of the entry opening, supports efficient thread suction, and reduces energy consumption while sparing material, enhancing the thread piecing process in textile machines.
Implementation Method 1
a suction nozzle for picking up a thread end of the thread from a bobbin
Data Source
AI summary
A device for piecing a thread at a workstation of a textile machine includes a suction nozzle configured to pick up a thread end of the thread from a bobbin, the suction nozzle including an entry opening for the thread. A feeder unit is movable with respect to the suction nozzle and includes a cover element configured to close the entry opening in a first position (I) of the feeder unit and to unblock the entry opening in a second position (II) of the feeder unit. The cover element includes a thread-guiding element having an open contour.