Compact Yarn Threading Robot with Winder
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Solution Overview
Problem
Conventional yarn threading robots are bulky due to the need to support the weight of suction injectors and compressed air systems, and they generate noise from air pressure, making them difficult to downsize and operate quietly.
Innovation Solution
A compact yarn threading robot design that winds yarn onto a winder on its main body, eliminating the need for a suction device and using a winder with a changeable diameter to securely store and discharge yarn, reducing noise and weight on the robot arm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suction device is mounted on the robot arm to hold yarn by negative pressure, then the yarn can be held and threaded, but the robot arm becomes heavy and bulky, and noise is generated
Solution Approach 1:
The suction device is extracted from the robot arm and relocated to a fixed position on the robot body. The robot arm only needs to move the lightweight yarn engaging part, while the heavy suction device remains stationary, reducing the robot arm's weight and complexity.
Solution Approach 2:
A winder is introduced as an intermediary component between the suction device and the yarn processing device. The winder stores the yarn in a controlled manner, allowing the suction device to be positioned optimally while the robot arm interacts only with the lightweight yarn engaging part.
2Reliability
If a suction device is mounted on the robot arm to hold yarn by negative pressure, then the yarn can be held and threaded, but the device complexity and size increase
Solution Approach 1:
The suction device and compressed air pipeline are extracted from the robot arm structure and repositioned to the robot body. This simplifies the robot arm to only contain the lightweight yarn engaging part, reducing structural complexity.
Solution Approach 2:
The system is segmented into distinct functional zones: the suction device and air supply system are separated from the robot arm, the winder handles yarn storage, and the yarn engaging part on the robot arm handles only the threading operation. This segmentation reduces overall system complexity.
3Reliability
If compressed air pipeline is connected to the robot arm to supply air to the suction device, then the suction function works, but the robot arm requires additional strength and becomes bulky
Solution Approach 1:
The compressed air pipeline is extracted from the robot arm and rerouted to connect directly to the suction device on the robot body. This eliminates the need for the robot arm to support the pipeline, reducing strength requirements.
4Ease of manufacture
If the winder has a constant diameter, then the structure is simple, but the yarn may drop out during storage
Solution Approach 1:
The winder diameter is made dynamically adjustable rather than fixed. The diameter can be expanded during yarn storage to prevent dropout and contracted during discharge to facilitate yarn removal. This dynamic adjustment maintains yarn storage reliability while managing structural complexity.
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 allows for a smaller, lower-power robot arm with reduced noise, enabling efficient and quiet yarn threading operations by eliminating the need for suction-based yarn handling and incorporating a winder that can change diameter to prevent yarn dropout.
Implementation Method 1
the yarn continuously from the spinning device is wound and stored onto the winder
Implementation Method 2
The robot arm moves the yarn engaging part with respect to the robot main body
Data Source
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AI summary
[Problem to be solved] To provide a compact yarn threading robot capable of reducing noise in the on-site environment where yarn is produced. [Solution] A yarn threading robot 2 threads yarn Y continuously spun from the spinning device 3 to the spinning take-up device 4. The yarn threading robot 2 includes a robot main body 21, a winder 25, and a robot arm 22. The winder 25 is located on the robot main body 21 so that the yarn Y continuously spun from the spinning device 3 is wound and stored onto the winder 25. The robot arm 22 has a hand part 23 that engages with the yarn Y between the spinning device 3 and the winder 25. The robot arm 22 operates the hand part 23 to thread the yarn Y between the spinning device 3 and the winder 25 to the spinning take-up device 4. The robot arm 22 is attached to the robot main body 21. The robot arm 22 moves the hand part 23 with respect to the robot main body 21.