Spinning Machine Compaction Device with Detachable Support
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Solution Overview
Problem
Existing compaction devices for fiber materials on spinning machines require complex and time-consuming installation and retrofitting, often necessitating additional drive elements and multiple adjustments, which complicates the process of producing high-quality yarns.
Innovation Solution
A compact compaction device with a rotatably supported compaction element and nip roller, detachably fastened to the spinning machine via shared support, utilizing a suction channel connected to the spinning machine's negative pressure source, and driven directly from the delivery rollers' bottom roller, eliminating the need for additional drive elements and allowing for quick assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a compaction device is retrofitted to an existing spinning machine, then compaction function is added, but installation time and complexity increase
Solution Approach 1:
The compaction device is designed as a modular unit with a support structure that can be detachably fastened to the spinning machine frame. This segmentation allows the compaction device to be installed as a complete module rather than requiring complex integration of individual components, significantly reducing installation time while maintaining full compaction functionality.
2Power
If additional drive elements are installed to drive the compaction device, then drive capability is improved, but device complexity and installation time increase
Solution Approach 1:
The bottom roller of the delivery roller pair is designed to serve dual functions: both delivering the fiber sliver and driving the compaction device through direct friction contact. This eliminates the need for separate drive elements, reducing device complexity while ensuring adequate drive capability for the compaction process.
Solution Approach 2:
The compaction device utilizes the motion of the delivery rollers themselves as the drive source. The friction between the bottom roller and the compaction element's peripheral surface creates a self-driven system where the existing moving parts provide the necessary power without requiring additional motors or drive mechanisms.
3Stability of the object's composition
If fixedly mounted compaction units are installed, then compaction stability is improved, but flexibility for dismantling and reconfiguration decreases
Solution Approach 1:
The support structure of the compaction device is designed with detachable fastening means that allow it to be securely mounted during operation for stable compaction, yet easily removed when reconfiguration is needed. This dynamic mounting system transitions from a fixed state during operation to a movable state during maintenance, providing both stability and flexibility.
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
Enables easy and rapid installation of the compaction device on conventional drafting system units, reducing installation time and avoiding drive losses, while ensuring effective compaction of fiber materials without additional drive devices.
Implementation Method 1
A specialized suction area on the compaction element is thus defined by using appropriate inserts inside the suction drum or inside the revolving apron. These types of inserts may be provided, for example, with appropriately shaped suction slits to which a negative pressure is applied, thus generating a corresponding air flow at the periphery of the particular compaction element.
Implementation Method 2
a friction wheel (28) having a circular inner surface, by means of which frictional locking with one of the rollers (7, 8) of the pair of delivery rollers is achieved
Data Source
AI summary
The invention relates to a device for compacting a sliver (V) on a spinning machine. At least one rotatably supported nip roller (33) is associated with a compaction element downstream from a suction zone (Z) to form a nip line (P). The compaction element (17) and the nip roller (33) are rotatably supported on a shared support (20) that is detachably fastened to the spinning machine via fastening means (46). The compaction element (17) has at least one drive element (28) that forms a drive connection with a bottom roller (7) of a pair of delivery rollers (7, 8) via a weighting device (55, 58) when the compaction element is transferred from an idle position to an operating position. The support has a suction channel (SK) for the suction air of the compaction element (17). A first end (S1) of the suction channel (SK) is connected to the compaction element, and a second end (S2) of the suction channel (SK) ends in the area of the support (20), by means of which the support in its installed position is fastened to the spinning machine.