Textile Drafting Compressor Unit Axial Displacement
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Solution Overview
Problem
Existing drafting systems face challenges in precisely guiding compression components and evenly distributing the load on fiber structures, leading to imprecise positioning and reduced service life of rollers due to relative movement of traversing devices during operation.
Innovation Solution
A drafting system with a compression unit featuring a guide and holder, where the guide has a curved contact surface matching the roller's lateral surface, and a receiving element for precise positioning, allowing the compression unit to be displaced as a whole, minimizing component movement and enhancing stability, thereby reducing fiber cutting into rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If play is provided at the connection point between the oscillating device and the compressor components to allow reconnection, then the drafting system can be opened and closed, but the positioning and oscillating of the compressor components becomes imprecise
Solution Approach 1:
A traversing device is introduced as an intermediary mechanism between the oscillating device and the compressor components. This traversing device actively compensates for the play at the connection point by dynamically adjusting the position of the compressor components, thereby maintaining precise positioning despite the presence of connection clearance that enables opening and closing operations.
2Duration of action of stationary object
If the traversing device is displaced relative to the compressor components, then the fiber structure is distributed over the lateral surface, but the relative movement causes imprecise positioning when the drafting system is open
Solution Approach 1:
The traversing device is designed with dynamic displacement capabilities that allow it to move relative to the compressor components during operation. This dynamic adjustment enables the fiber structure to be distributed over the lateral surface of the roller, extending service life, while the system maintains control over the relative movement to ensure precise positioning is restored when the drafting system closes.
3Manufacturing precision
If the contact surface is curved and adapted to the lateral surface of the roller, then the fiber structure is compressed precisely, but the complexity of the guide component increases
Solution Approach 1:
The contact surface of the guide component is designed with a curved geometry that adapts to the lateral surface of the roller. This curvature enables precise compression of the fiber structure by conforming to the roller's surface profile, ensuring uniform contact and pressure distribution. The curvature is specifically tailored to match the roller's geometry, achieving precise compression without requiring additional complex 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 ensures precise guidance and compression of fibers, delays fiber cutting into rollers, and increases the service life of the drafting system rollers by allowing independent axial displacement of the guide and holder relative to the roller, while simplifying the closing process and reducing wear.
Implementation Method 1
A compression area is arranged in and/or on the at least one guide, in particular in and/or on the contact surface, so that a fiber structure guided through the compression area is compressed
Implementation Method 2
The contact surface lies exactly on the lateral surface, so that preferably no gap is formed between the contact surface and the lateral surface. This prevents, for example, the fiber structure or individual fibers from slipping out of a compression area
Data Source
Figure 1
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AI summary
The invention relates to a compression unit for a drafting unit (2) of a textile machine, comprising at least one guide (4a, 5a, 4b, 5b) and a holder (3), wherein the at least one guide (4a, 5a, 4b, 5b) is arranged on the holder (3), the at least one guide (4a, 5a, 4b, 5b) having a contact surface (6a, 7a, 6b, 7b) which bears against a drafting unit roller (8) during operation of the drafting unit (2), wherein a compression area (9a, 10a, 9b, 10b) is arranged in and/or on the at least one guide (4a, 5a, 4b, 5b), in particular in and/or on the contact surface (6a, 7a, 6b, 7b), such that a [missing element] guided through the compression area (9a, 10a, 9b, 10b) The fiber composite (11a, 11b) is compressed, and with a receiving element (12) which has a connection (13) with the holder (3), and wherein the compression unit (1) can be received in the drawing frame (2) by means of the receiving element (12).According to the invention, the guide (4a, 5a, 4b, 5b) and/or the support (3) and/or the receiving element (12) are displaceable relative to each other, or the entire compressor unit (1) is displaceable in the axial direction of the stretching roller (8). Furthermore, the compressor unit (1) has an alignment area (28) to enable it to be aligned with a changing device.