Integrated Drive Motor in Yarn Intermingling Cup
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Solution Overview
Problem
Conventional intermingling devices for multifilament yarns using pulsating air require significant installation space and power due to the external drive of the rotating cup, which increases space and production costs, and results in inefficient air consumption and knot uniformity.
Innovation Solution
The integration of the drive motor and bearing into the housing of the intermingling device, with a synchronous electric motor and a rotating cup that minimizes air leakage and cancels out radial forces, allowing for compact design and reduced power demand, using pulsating air to generate knots with optimized nozzle spacing and rotor speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the drive motor and bearing are located outside the housing, then the device has simpler structure and easier maintenance, but the installation space requirement increases significantly
Solution Approach 1:
The patent integrates the drive motor and bearing directly into the housing structure, merging previously separate components (motor, bearing, housing) into a unified assembly. This eliminates the need for external mounting of the motor and bearing, thereby reducing the overall installation space while maintaining structural integrity and functionality.
2Reliability
If the cup bearing is dimensioned large to handle compressed air forces, then the bearing reliability increases, but the space requirement and power demand increase
Solution Approach 1:
The patent employs counterbalancing weights or opposing force mechanisms within the rotating cup assembly to neutralize the forces generated by compressed air. This allows the bearing to be dimensioned smaller while still maintaining reliability, as the counterbalancing mechanism offsets the radial and axial loads that would otherwise require a larger, more powerful bearing.
3Loss of substance
If the intermingling air flows continuously, then the knot formation is consistent, but the air consumption increases
Solution Approach 1:
The patent implements periodic interruption of the intermingling air flow through a rotating cup with selectively positioned openings or a valve mechanism. This periodic action creates distinct pulses of air that form knots at regular intervals along the yarn, reducing overall air consumption while maintaining consistent knot uniformity through controlled timing and duration of each air pulse.
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 reduces air consumption by half, increases knot uniformity, and minimizes non-intermingled spots, achieving a more compact and energy-efficient intermingling process while allowing for customizable knot structures.
Implementation Method 1
The drive of the cup is carried out by means of an electric motor which is located outside the intermingling device
Implementation Method 2
Intermingling nozzles operate on static compressed air, which flows through one or more blow holes into a yarn channel
Implementation Method 3
the intermingling air is sequentially interrupted by a rotating ring in which the air passages are located
Implementation Method 4
The cup is mounted on 2 grooved ball bearings
Data Source
AI summary
The invention relates to a yarn treatment device for intermingling multifilament yarns by means of a pulsating air stream that is generated by a rotating cup ring having openings, characterized in that the drive motor and the support of the cup ring are located in the interior of the housing with the air supply channels thereof, and to a yarn treatment device for intermingling multifilament yarns by means of a pulsating air stream that is generated by a rotating cup ring having openings, characterized in that one or more nozzle inserts, through which the pulsating blown air flows, per thread run are arranged on the housing cup.