Roving Stabilization Suction Unit for Tube Winding Start
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Solution Overview
Problem
The starting process for producing roving on textile machines is challenging due to the need to bring the roving into contact with an empty tube for winding, which can lead to issues with roving tearing and uneven delivery speed.
Innovation Solution
A textile machine equipped with a movably mounted suction unit and a traversing unit that brings the roving into contact with the tube, allowing for controlled severance and winding of the roving using mechanical or pneumatic devices, ensuring the roving is securely gripped by the tube's hooks and wound without interruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the roving is brought into contact with an empty tube for winding during the starting process, then the winding operation can be initiated, but the roving may tear or experience uneven delivery speed
Solution Approach 1:
The suction unit is activated before the roving contacts the tube to create a vacuum field that captures and secures the roving. This preliminary action prevents the roving from experiencing sudden tension shocks during the starting process, thereby preventing tearing while enabling reliable winding initiation
Solution Approach 2:
The suction unit acts as an intermediary between the roving and the tube. Instead of the roving directly contacting the empty tube which causes tension and potential tearing, the suction unit mediates the transition by gently capturing the roving and guiding it onto the tube under controlled vacuum conditions
2Reliability
If the roving is captured by a suction unit before contact with the tube, then tearing is prevented, but additional device complexity is introduced
Solution Approach 1:
The suction unit is integrated into the existing winding device structure, serving both as a roving capture mechanism and as part of the overall winding system. This multi-functional integration minimizes additional complexity while achieving reliable roving handling during the starting process
Solution Approach 2:
The suction unit automatically activates when the tube rotates into position, capturing the roving without requiring separate manual intervention or complex control systems. The system self-regulates the vacuum activation and deactivation based on the tube's rotational position, simplifying the overall control architecture
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 solution enables a seamless start to roving production by capturing the roving with the suction unit before contact with the sleeve, allowing for continuous winding and maintaining the desired delivery speed, reducing roving tension and preventing tearing during the starting process.
Implementation Method 1
a movably mounted suction unit with a suction opening, by means of which the roving can be drawn in
Data Source
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AI summary
The invention relates to a textile machine for producing roving (1), comprising at least one stabilization means, with the aid of which a roving (1) having a protective twist is producible from a fiber composite (3) supplied to the stabilization means, and comprising a winding device (5), located downstream from the stabilization means in a transport direction (T) of the roving (1), for winding up the roving (1) produced from the stabilization means onto a reel core (7) which can be driven with the aid of a reel-core drive (6). The textile machine is characterized in that it has an arrangement, with the aid of which the roving (1), which leaves the stabilization means during a start of the roving production, can be brought into contact with the reel core (7), wherein the specified arrangement comprises a moveably mounted suction unit (8) with a suction opening (9), with the aid of which the roving (1) can be sucked in during ongoing roving production, wherein the specified arrangement comprises means, with the aid of which the roving (1) running between the stabilization means and the suction opening (9) during ongoing roving production can be brought into contact with the reel core (7), and in that the specified arrangement comprises means, with the aid of which the roving (1) can be separated during ongoing roving production in such a way that the segment (19) of the roving (1) captured by the suction unit (8) can be discharged with the aid of the suction unit (8), and the segment of the roving (1) running between the stabilization means and the reel core (7) can be wound up on the reel core (7). In addition, a method for starting the roving production using a corresponding textile machine is proposed.