Yarn Storage Drum Motor Nesting for Contamination Protection
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Solution Overview
Problem
Existing yarn stores in spinning and winding machines face challenges in maintaining consistent yarn tension due to contamination of motor components, which affects the operational efficiency and reliability of yarn guiding and winding processes.
Innovation Solution
The yarn store design includes a rotatable storage drum and yarn guide driven by separate electric motors, with the second motor's stator and rotor partially or fully enclosed within a radial cavity of the axle section to prevent contamination, and a varying outer diameter axle section that accommodates the motor components, ensuring protection and efficient yarn tension regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the second motor components (stator and rotor) are exposed to the external environment, then the device complexity is reduced and ease of manufacture is improved, but the motor components become contaminated with dust and fluff affecting reliability
Solution Approach 1:
The second stator and second rotor are nested within the axle section, specifically the second stator is arranged in a radial cavity of the axle section, and the second rotor is arranged around the second stator. This nesting configuration protects the motor components from external contamination while maintaining a compact structure without requiring additional protective housings.
2Manufacturing precision
If separate motors are used for storage drum and yarn guide, then yarn tension control precision is improved, but the device complexity increases
Solution Approach 1:
The first motor (for storage drum) and second motor (for yarn guide) are merged into a single integrated motor unit mounted on the axle section. The first stator and second stator are arranged adjacently on the axle section, with their respective rotors driving the storage drum and yarn guide. This combining approach enables independent control of both components while reducing overall system complexity compared to using completely separate motor assemblies.
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 design effectively prevents contamination of the motor components, maintaining consistent yarn tension and improving the operational reliability of the yarn guiding and winding processes by protecting the second motor from dust and fluff, and allowing for precise control of yarn tension.
Implementation Method 1
a first electric motor with a first stator and a first rotor which interacts therewith and is connected to the storage drum to drive the storage drum
Implementation Method 2
a second electric motor with a second stator and a second rotor which interacts therewith and is connected to the yarn guide
Implementation Method 3
the second stator and/or the second rotor is surrounded at least in sections by the axle section in a radial direction running perpendicularly to the longitudinal axis
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a yarn storage unit (1) for a spinning or winding machine, wherein the yarn storage unit (1) has an axle section (4) that is rigidly connectable to a support (2) of the spinning or winding machine and extends in the direction of a longitudinal axis (3) of the yarn storage unit (1), wherein the yarn storage unit (1) has a storage drum (5) rotatably mounted relative to the axle section (4) for temporarily receiving a yarn (6), wherein the yarn storage unit (1) has a yarn guide (7) rotatably mounted relative to the axle section (4) for guiding the yarn (6), and wherein the yarn storage unit (1) has a first electric motor with a first stator (8) and a first rotor (9) cooperating therewith and connected to the storage drum (5) for driving the storage drum (5).and wherein the yarn storage unit (1) comprises a second electric motor, operatively connected to the yarn guide (7), with a second stator (10) and a second rotor (11) that interacts with and is connected to the yarn guide (7). According to the invention, it is proposed that the second stator (10) and/or the second rotor (11) be at least partially surrounded by the shaft section (4) in a radial direction (R) extending perpendicular to the longitudinal axis (3). Furthermore, a spinning or winding machine with a corresponding yarn storage unit (1) is proposed.