Oil applying guide and spun yarn take-up machine
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Solution Overview
Problem
Oil not adhering to yarns tends to be scattered or dropped due to unintentional accumulation in the oil applying guide, particularly caused by the thickness of the yarn and density of the oil, leading to inefficiencies in the spinning process.
Innovation Solution
The oil applying guide is designed with a passage that includes a yarn contact surface, an oil discharging surface with increasing distance from the yarn path, and paired regulating surfaces with a minimum distance of 0.35 mm or less between them, preventing oil accumulation by ensuring the oil adheres to the yarn and is efficiently discharged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the passage width is reduced to prevent oil accumulation, then oil scattering is suppressed, but the yarn may not be properly contacted by oil
Solution Approach 1:
The passage cross-section is designed with non-uniform width, being narrowest at the upstream end where oil is discharged and gradually widening toward the downstream end. This local variation in geometry ensures that oil is constrained near the yarn contact point to prevent scattering, while still allowing adequate oil flow and contact along the yarn path.
2Productivity
If the oil discharging surface is positioned close to the yarn path, then oil application efficiency is improved, but oil accumulation occurs in the passage
Solution Approach 1:
The passage cross-sectional width in the width direction is used as a control dimension to manage oil flow. By making the passage narrow at the upstream end and gradually widening it downstream, the design uses the width dimension to prevent oil accumulation while maintaining efficient oil discharge near the yarn path, thus resolving the contradiction between application efficiency and oil accumulation prevention.
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 suppresses the unintentional accumulation and scattering of oil, improving the efficiency of oil application and reducing waste by ensuring the oil adheres to the yarn, even with thin yarns and high-density oils.
Implementation Method 1
a passage allowing the oil to flow downward from above is formed
Implementation Method 2
the oil discharged from the oil discharge hole flows in the passage, and adheres to the running yarn
Data Source
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AI summary
An object of the present invention is to suppress an unintentional accumulation of oil not adhering to a yarn in an oil applying guide. An oil applying guide 11 which applies oil to a yarn Y running downward from above includes a guide main body 30 in which a passage 31 which allows the oil to flow downward from above is formed. The passage 31 includes a yarn contact surface 36 with which the yarn Y makes contact, the yarn Y leaving the yarn contact surface 36 at a downstream end portion of the yarn contact surface 36 in an oil flow direction in which the oil flows, an oil discharging surface 37 which allows the oil to be discharged, which is provided downstream of the yarn contact surface 36 in the oil flow direction, and which is formed so that a direction between the oil discharging surface 37 and a yarn path 101 increases toward a downstream side in the oil flow direction, and paired regulating surfaces 38 formed on both ends, in a width direction of the passage 31, of the passage 31. Regarding a distance between the pared regulating surfaces 38 in the width direction, the distance which is between shortest points of parts formed on both sides, in the width direction, of the yarn contact surface 36 is 0.35 mm or less.