Spun Yarn Winder Decompression Housing for Lower Air Resistance
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Solution Overview
Problem
Existing spun yarn take-up apparatuses face inefficiencies in power consumption due to increased air resistance on packages during yarn winding, which is not effectively suppressed by partial cover members, leading to higher rotational loads and power consumption.
Innovation Solution
A decompression mechanism in the housing of the yarn winder, with discharge and access openings, reduces air resistance by maintaining a sealed internal space and utilizing a pump to decrease air pressure, along with a heat radiation mechanism to manage heat generation efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a cover member is provided to extend along the circumferential direction of the package to suppress air resistance, then power consumption is reduced, but the gap between the cover member and the package must be sufficient to avoid contact during rotation and diameter increase, which limits the effectiveness of air resistance suppression
Solution Approach 1:
The patent removes the cover member that was previously used to suppress air resistance and replaces it with a decompression mechanism that extracts air from the housing interior. This eliminates the contact problem between the cover member and package while effectively reducing air resistance through vacuum creation.
Solution Approach 2:
The patent changes the physical parameter of air pressure inside the housing from atmospheric pressure to reduced pressure (vacuum state). By using the decompression mechanism to lower the air pressure, the air resistance on the rotating package is significantly reduced without requiring any physical cover members that could contact the package.
2Use of energy by moving object
If the cover member is positioned to entirely cover the outer circumferential surface of the package, then air resistance suppression is maximized, but contact with the contact roller occurs which interferes with proper yarn winding
Solution Approach 1:
The patent removes the cover member entirely and replaces its air resistance suppression function with a decompression mechanism that creates a vacuum environment. This eliminates the interference with the contact roller while maintaining effective air resistance suppression through pressure reduction.
Solution Approach 2:
The patent changes the approach from physical coverage (cover member) to environmental modification (decompression). By reducing the air pressure inside the housing, air resistance is suppressed without any physical object interfering with the contact roller or yarn winding process.
3Reliability
If a wide gap is maintained between the cover member and the package to avoid contact during rotation and diameter increase, then reliability is improved, but the effect of suppressing air resistance is limited
Solution Approach 1:
The patent removes the cover member and replaces it with a decompression mechanism. This eliminates the need for any gap maintenance while achieving superior air resistance suppression through vacuum creation, thereby reducing power consumption more effectively.
Solution Approach 2:
The patent changes from maintaining a physical gap (spatial parameter) to reducing air pressure (pressure parameter). By creating a vacuum environment, air resistance is suppressed to a much greater extent than what a wide gap could achieve, significantly reducing power consumption.
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
The solution effectively suppresses air resistance, reducing the rotational load on the bobbin holder and improving power consumption efficiency while allowing easy access for maintenance and heat management.
Implementation Method 1
a decompression mechanism which is able to decompress inside of the housing
Implementation Method 2
utilizing a pump to decrease air pressure
Data Source
Figure 1
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AI summary
An effect of reducing power consumption is improved by effectively suppressing air resistance on a package, when a yarn is wound. A spun yarn take-up apparatus 1 includes: a spinning apparatus 2 having a spinneret 12 through which yarns Y are spun out downward; a yarn winder 4 having bobbin holders 24 to which bobbins B are attached, the yarns Y spun out from the spinneret 12 being wound onto the bobbins B; a housing 30 which houses the yarns Y spun out from the spinneret 12 and running toward the yarn winder 4 and packages P formed by winding the yarns Y onto the respective bobbins B; and a decompression mechanism 40 capable of decompressing the inside of the housing 30. The housing 30 is provided with the discharge opening portion 31 which is provided to discharge the packages P and is openable and closable. The packages P can be discharged from the inside of the housing 30 when the discharge opening portion 31 is open. The internal space 70 of the housing 30 is in a sealed state when the discharge opening portion 31 is closed.