TMT Machinery Patente

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To provide a coupling device suitable for arrangement in a pipe connected to a yarn sucking device and capable of coupling paired couplers if axes of the couplers are not parallel to each other. A first coupler 83 includes a first cylinder body 91. A second coupler 84 includes a second cylinder body 92 facing the first cylinder body 91, a cylindrical ring member 93 engaged on an outer side of the second cylinder body 92 with a gap, and movable in an axial direction of the second cylinder body 92, a seal ring 95 arranged between the second cylinder body 92 and the ring member 93, and a bias mechanism 96 biasing the ring member 93 toward the first cylinder body 91. A ring member 94 is provided on an end face of the first cylinder body 91. One coupler 84 is moved toward the other coupler 83, and an end face of the ring member 93 contacts the end face of the first cylinder body 91 via the sealing member 94, whereby an inner passage of the first cylinder body 91 is brought into communication with an inner passage of the second cylinder body 92.

Both uniformization of temperature distribution on the roller surface in the axial direction and effective heating of the roller surface are achieved. In an induction heating roller 30 including: a coil 32; a roller main body 31 having an outer cylindrical part 33 which is cylindrical in shape and is provided on an outer side in a radiation direction of the coil 32; and a heat leveling member 36 provided on the outer side in the radial direction of the coil 32 and on an inner side in the radial direction of the outer cylindrical part 33 and being in contact with an inner circumferential surface of the outer cylindrical part 33, heat conductivity of the heat leveling member 36 is higher than heat conductivity of the outer cylindrical part 33 in an axial direction, and electric resistivity of the heat leveling member 36 is higher than electric resistivity of the outer cylindrical part 33 in a circumferential direction.

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A synthetic yarn splicer 1 includes a yarn splicing portion 10, a first clamping mechanism 20, and a second clamping mechanism 30, in which the first clamping mechanism 20 and the second clamping mechanism 30 clamp a first yarn Y1 and a second yarn Y2 so that a line L connecting a pair of clamping positions CP1 and CP2 of the first yarn Y1 and the second yarn Y2 is located in an area A of a chamber 14 and the area A is an area which is located at the side opposite to a slit 13 with respect to a first line L1 and is located at the side opposite to an injection hole 16a with respect to a second line L2 following a first direction Y and passing through a center C.

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Power consumption is restrained while the temperature of a preheating roller is suitably controlled. A spun yarn drawing apparatus 3 includes: a preheating roller 33 which heats yarns Y before drawn; a conditioning roller 35 which is provided downstream in a yarn running direction of the preheating roller 33 and is higher in temperature and speed than the preheating roller 33; and a thermal insulation box 20 which houses the preheating roller 33 and the conditioning roller 35, the yarns Y being drawn between the preheating roller 33 and the conditioning roller 35, the spun yarn drawing apparatus further including: partition portions 43a and 43b provided between the preheating roller 33 and the conditioning roller 35; a communication passage 47 which causes a low-temperature space 45 which is on the preheating roller 33 side of the partition portions 43a and 43b to communicate with a high-temperature space 46 which is on the conditioning roller 35 side of the partition portions 43a and 43b; and shutters 48 and 49 which are provided to change the flow passage area of the communication passage 47.

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Yarn threading is properly performed in accordance with the position of a yarn processing apparatus (1), with a simple process. An operator moves a robotic arm (32) so that arm movement information which is information regarding how to move the robotic arm (32) when yarn threading is performed onto a take-up unit (3) is stored in a storage unit (123). By using a sensor (46) attached to a yarn threading unit (52) at a leading end portion of the robotic arm (32), information of positions of plural take-up units (3) is acquired and stored in the storage unit (123). The arm movement information is corrected based on a difference between the position of the take-up unit (3) onto which the yarn threading is to be performed and the position of the above-described take-up unit (3), and the yarn threading onto the take-up unit (3) is performed by moving the robotic arm (32) based on the corrected arm movement information.

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