Swiveling Suction Nozzle for Texturing Machine Thread Transfer
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Solution Overview
Problem
Existing texturing machines face challenges in reliably guiding synthetic threads to the winding device due to large thread distances between pneumatic auxiliary device blow and suction openings, leading to misalignment and air resistance issues, especially with fine yarns.
Innovation Solution
A pivotable suction nozzle with a swivel drive, positioned close to the guide tube's blowing end, allows precise alignment and movement to reduce distance between suction and blowing openings, and a pressure roller with a movable clamping holder ensures accurate thread transfer, while a baffle plate catches loose threads to prevent deflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pneumatic auxiliary device with guide tubes and injectors is used to feed the thread to the winding unit, then the thread can be pneumatically fed to the winding unit, but large thread gaps between blowing and suction openings necessitate precise alignment and increase air resistance
Solution Approach 1:
The suction nozzle is made movable/swivelable instead of fixed, allowing it to dynamically adjust its position to maintain optimal alignment with the blowing opening. This dynamic positioning capability resolves the contradiction by enabling reliable thread transfer without requiring extremely precise fixed alignment, thus improving reliability while maintaining ease of operation.
2Reliability
If the distance between blowing and suction openings is reduced, then alignment precision is improved and air resistance is reduced, but the suction device becomes more complex
Solution Approach 1:
The suction nozzle is designed with swivel capability allowing it to move closer to the blowing opening dynamically. This reduces the thread gap distance to improve reliability and reduce air resistance, while the swivel mechanism provides the necessary adaptability. The complexity is managed by using a relatively simple rotational joint rather than a complex positioning system.
3Reliability
If a swiveling suction nozzle is used to reduce distance between openings, then thread transfer reliability is improved, but the suction device requires additional positioning mechanisms
Solution Approach 1:
The suction nozzle is made swivelable to dynamically adjust its position for optimal thread capture. This dynamic positioning improves thread transfer reliability by allowing the nozzle to adapt to slight variations in thread position and maintain the shortest possible distance to the blowing opening, while the swivel mechanism itself remains relatively simple.
Solution Approach 2:
The swiveling suction nozzle can automatically adjust its position to align with the thread path without requiring complex external positioning systems. The nozzle's movement is driven by the pneumatic flow itself, which naturally guides it into the correct position for thread capture, reducing the need for additional positioning 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
This configuration enables secure and efficient thread transfer to the winding device, minimizing operator effort and ensuring reliable guidance for both fine and coarse threads, even at greater distances, by reducing air resistance and eliminating sharp bends in the guide tubes.
Implementation Method 1
The winding unit has a suction system through which the thread is picked up and guided to the threading point
Implementation Method 2
the known texturing machine has a pneumatic auxiliary device with several guide tubes and several injectors. This allows the thread to be pneumatically fed to the winding unit
Data Source
Figure 1
Figure 2
Figure 3.1~3.2
AI summary
The invention relates to a texturing machine for drawing and crimping synthetic threads, comprising a plurality of processing points. Each of the processing points has multiple delivery mechanisms (3, 7, 19), multiple treatment devices (4, 5, 6, 10) and a winding device (21) for winding a reel. A pneumatic auxiliary device (11) having multiple guide tubes (12.1, 12.2) and multiple injectors (13.1, 13.2) is provided for threading a thread at the beginning of the process or in a process interruption, wherein the auxiliary device (11) cooperates with a suction device (22) associated with the winding device (1) via a blowing end (15.1, 15.2) of one of the guide tubes (12.1, 12.2). In order to create the shortest possible transfer sections, the suction device (22) comprises a swivellable suction nozzle (22.1), which can be positioned at a short distance opposite the blowing end (15.1, 15.2) of the guide tube (12.1, 12.2) for receiving the thread.