Device for oiling a moving yarn
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Solution Overview
Problem
Existing yarn oiling devices suffer from unintentional oil leakage during standstill, leading to contamination and lack of precise oil dosage adjustment based on empirical settings.
Innovation Solution
A device with a controller, dosing pump, yarn guiding device, and oil feed channel featuring a flow sensor, closure element, and heating coil, which allows precise oil dosing and prevents leakage by using a shut-off valve and ultrasonic flow meter to regulate oil quantity and temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a dosing pump is used to supply oil to the yarn guiding device, then oil can be applied to the yarn, but oil overruns from the dosing pump to the yarn guiding device when the device is at a standstill, leading to contamination
Solution Approach 1:
The closure element is activated before the device reaches standstill to close the oil feed channel, preventing oil overrun in advance. The controller monitors device speed and preemptively closes the channel when stopping is detected, eliminating the harmful effect before it occurs.
Solution Approach 2:
The system uses feedback from device operation status (moving vs. standstill) to control the closure element. The controller receives information about device motion state and automatically adjusts the closure element position, creating a closed-loop control system that prevents oil leakage adaptively.
2Productivity
If the dosing pump is continuously supplied with oil, then the yarn can be oiled during operation, but oil accumulates in the oil feed channel when the device is stopped, requiring manual removal before restart
Solution Approach 1:
The closure element closes the oil feed channel in advance before the device stops, preventing oil accumulation during shutdown. This preliminary action eliminates the need for manual cleaning before restart, as no oil can enter the channel when the device is stationary.
Solution Approach 2:
The system automatically manages oil supply by itself through the controller and closure element, without requiring manual intervention for cleaning. The automated closure and opening of the oil channel based on device operation status creates a self-maintaining system that prevents contamination autonomously.
3Ease of operation
If the oil pump settings are fixed empirically, then the device is simple to operate, but the oil dosage cannot be adapted to changing conditions such as slowed yarn run
Solution Approach 1:
The system transitions from static empirical pump settings to dynamic adaptive control. The controller continuously monitors device operation status and automatically adjusts the closure element and dosing pump to adapt oil dosage to changing yarn speeds, maintaining optimal performance across varying conditions.
Solution Approach 2:
The system incorporates feedback from device operation parameters (such as yarn speed) to automatically adjust oil dosage. The controller uses this feedback to modulate the dosing pump and closure element, enabling the system to adapt to changing conditions without manual intervention while maintaining ease of operation.
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
Ensures precise and consistent oil application to the yarn, preventing contamination and allowing autonomous operation with adjustable oil dosage based on yarn speed and conditions.
Implementation Method 1
a flow sensor (13) is provided in the second portion (9)
Implementation Method 2
at least a third portion (10) of the oil feed channel, which leads from the closure element (11) to the oil transfer element (7), is designed as a heating coil (14)
Implementation Method 3
a dosing pump (4) is arranged in the housing (2)... The dosing pump delivers the oil in the required quantity to the oil transfer element
Implementation Method 4
a closure element (11) is provided in the oil feed channel... which prevents oil from leaking out of the device
Data Source
AI summary
A device for oiling a moving yarn includes a controller, a housing, an oil port provided in the housing, and a dosing pump arranged in the housing. A yarn guiding device with an oil transfer element is mounted in the housing. The oil transfer element is connected to the oil port by an oil feed channel via the dosing pump. A closure element and a flow sensor are provided in the oil feed channel. The oil feed channel has a first portion from the oil port to the dosing pump, a second portion from the dosing pump to the closure element, and a third portion from the closure element to the oil transfer element. The flow sensor is provided in the second portion of the oil feed channel.