TMT Machinery Patente

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Increase in size in the vertical direction of an operational robot is avoided, and swing of the operational robot while a working unit is in operation is suppressed. A spun yarn take-up machine includes take-up units which are aligned in a predetermined direction orthogonal to the vertical direction, a single rail member 35 which is fixedly provided at a position remote from the floor surface and extends along the predetermined direction, and a yarn threading robot 4 which moves while being suspended from the rail member 35. The yarn threading robot 4 includes a main body 31, a moving unit 34 configured to move the main body 31, a working unit which is configured to perform yarn threading while the moving unit 34 is stopped, and a swing suppressor 40 which is configured to suppress swing of the main body 31 in an orthogonal direction which is orthogonal to both the vertical direction and the predetermined direction. One of the swing suppressor 40 and the rail member 35 includes a V-shaped block 41 which is positioned to sandwich the other one of the rail member 35 and the swing suppressor 40 at least in the orthogonal direction, while the working unit is in operation.

A yarn winder (10) in which local wearing of fulcrum guides (16) is reliably suppressed and the fulcrum guides (16) does not need bearings is provided. Fulcrum guides (16) are rollers each having a central axis, having outer circumferential surfaces on which the yarns (Y) are placed, and being arranged not to rotate about the central axis during yarn winding. The yarn winder (10) includes: a movement mechanism (20) configured to move the fulcrum guides (16) between winding positions where the yarn winding is performed and yarn threading positions where yarn threading is performed; and a rotation mechanism (30, 40 , 50) configured to automatically rotate at least one of the fulcrum guides (16) about the central axis, when the movement mechanism (20) moves the fulcrum guides (16) between the winding positions and the yarn threading positions.

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The time and labor required for teaching for a yarn threading robot are reduced. A spun yarn take-up system 1 includes: a take-up unit 3; a yarn threading robot 4 which includes a yarn threading arm 32 and is configured to perform yarn threading to the take-up unit 3 by using the yarn threading arm 32; a yarn threading storage unit 102a which is able to store information regarding coordinates of points P to which a predetermined part (TCP) of the yarn threading arm 32 is moved in a predetermined order when the yarn threading is performed; and a yarn threading controller 102 which is configured to cause the yarn threading robot 4 to perform the yarn threading based on the information regarding the coordinates of the points P. When the points P are grouped into predetermined groups, the yarn threading controller 102 acquires coordinates of a specific point based on a result of teaching regarding the yarn threading, each of the predetermined groups including at least one specific point, and the yarn threading controller 102 acquires coordinates of a relative point which is different from the at least one specific point, based on predetermined relative coordinates relative to the coordinates of the specific point belonging to the same group as the relative point.

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An object of the present invention is to determine whether the quality of a yarn is stable, without needing human workforce. A yarn spinning system includes a spinning apparatus 2 and a first control unit (controller 5). The spinning apparatus 2 includes a spinning pack 16 having a spinneret 17 configured to discharge molten polymer which is a material of a yarn Y, and an information detection unit 60 arranged to be able to detect information regarding the quality of the yarn Y spun out from the spinneret 17. The controller 5 is programmed to acquire a predetermined determination parameter based on a detection result by the information detection unit 60 and to perform, with use of the determination parameter, quality determination of whether the quality of the yarn Y is stable.

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A synthetic yarn splicer 1 includes: a yarn splicing portion 10 that includes a chamber 14 which forms a space through which a first yarn Y1 and a second yarn Y2 are insertable and an injection hole 16a which injects air; and a first clamping mechanism 20 and a second clamping mechanism 30 that are provided at a position interposing the chamber 14 of the yarn splicing portion 10 and hold each of the first yarn Y1 and the second yarn Y2 inserted through the space, in which a cross-sectional shape of the chamber 14 formed on a plane orthogonal to a penetration direction of the chamber 14 is a circular shape, and in which a first line passing through a center C of the chamber 14 and connecting an inner peripheral surface 14a of the chamber 14 and a second line passing through the center C of the chamber 14, connecting the inner peripheral surface 14a of the chamber 14, and orthogonal to the first line are equal to or larger than 4.0 mm and equal to or smaller than 7.0 mm.