TMT Machinery

An object of the present invention is to reliably cut yarns (Y). In a yarn cutting-sucking device (7), a movement mechanism (712) is able to perform: first movement in which a yarn gathering member (711) is moved so that a yarn holding portion (711h) is moved leftward at a first speed to gather and guide yarns (Y) to a cutter; and second movement in which the yarn gathering member (711) is moved so that the yarn holding portion (711h) is moved at a second speed faster than the first speed and presses the yarns (Y), which are gathered and guided to the cutter (75) in the first movement, onto the cutter (75) to cut the yarns (Y).

The invention relates to a long-member vibration suppression system comprising: a long member (22) which is long in one direction and which is bent due to vibration; and an attenuation member (130) which is pipe-shaped and which is used in an attached state of being attached to the long member (22) so as to extend in the one direction for suppressing vibration of the long member (22), the attenuation member (130) including: a fixed portion (132) which is positionally fixed to the long member (22) in the one direction while the attenuation member (130) is in the attached state; and a contact portion (131) which is positionally different from the fixed portion (132) in the one direction, which is configured to make contact with and press an elongated surface (22b), and which is movable relative to the elongated surface (22b) in the one direction while the attenuation member (130) is in the attached state, the elongated surface (22b) being an outer side surface of the long member (22) and extending along the one direction, at least one slit (35) being formed in the attenuation member (130), the at least one slit (35) extending in the one direction and being open at least at one end portion of the attenuation member (130) while the attenuation member (130) is in the attached state, the one end portion of the attenuation member (130) being provided on one side in the one direction, the contact portion (131) of the attenuation member (130) in the attached state being formed in a region where the at least one slit (35) is formed in the one direction, and the attenuation member (130) being fitted to the outer side surface of the long member (22) while the size of the contact portion (131) in an orthogonal direction orthogonal to the one direction is expanded by the at least one slit (35).

The possibility of allowing a yarn end on the package side where the formation of a package has been completed to be entangled on the empty bobbin side is reduced. A spun yarn take-up machine 1 includes bobbin holders 24A and 24B, a switching unit, a partition plate 65, and a controller 26. In a completed state in which a switching operation is completed, a package P is held by the bobbin holder 24A, and the partition plate 65 is at a partition position, a first virtual line segment VLS1 is defined. Two virtual tangents (a first virtual tangent VLT1 and a second virtual tangent VLT2) in contact with the outer circumferential edge of the bobbin holder 24B, which are parallel to the first virtual line segment VLS1, are defined. The partition plate 65 traverses across both of the two virtual tangents and is spaced apart from a yarn holding guide 44. The controller 26 positions the partition plate 65 at the partition position after the switching operation is completed, and starts to move the yarn holding guide 44 from a holding position toward a retracted position before the partition plate 65 reaches the partition position.

A yarn winding machine includes a pair of bobbin holders (41, 42), a first bobbin holder motor, a turret plate (40), and a control apparatus. Each bobbin holder of the pair of bobbin holders holds a bobbin. A drive apparatus rotationally drives the bobbin holder to wind a yarn onto the bobbin to form a package. The turret plate (40) moves the bobbin holders (41, 42) between a winding position, a collection position, a first switching position, and a second switching position. The control apparatus performs control for starting rotation of the first bobbin holder (41) in a direction to wind the yarn, after the yarn switching and before the first bobbin holder (41) reaches the collection position, such that the first bobbin holder (41) is rotating in the direction to wind the yarn at least when the first bobbin holder (41) reaches the collection position.

An information processing apparatus (100) capable of estimating dyeing quality regarding a draw textured yarn produced by false-twisting a raw yarn includes a control device (101). The control device (101) performs processing for acquiring an estimation model (124) generated by machine-learning a correlation between explanatory variables (EV) and a target variable (DV) that are specified in each of a plurality of sets of learning data (122), and the explanatory variables (EV) include a plurality of physical properties measured regarding a raw yarn for learning. The target variable (DV) includes dyeing quality measured regarding a draw textured yarn for learning produced by false-twisting the raw yarn for learning. Processing for acquiring a plurality of physical properties regarding a raw yarn that is an estimation target and processing for outputting dyeing quality obtained from the estimation model (124) by inputting the plurality of physical properties acquired regarding the raw yarn that is the estimation target to the estimation model (124) are performed.

[Problem to be Solved] Provided is a false-twisting machine and fiber waste collection device configured to separate fiber waste from air appropriately thereby capable of suppressing the discharge of the fiber waste to an exterior thereof.[Solution to Problem] In a false-twisting machine, a fiber waste collection device 1 configured to collect fiber waste includes: a fiber waste transfer pipe 11 arranged with a plurality of suction units 15 for suctioning fiber waste such that the fiber waste suctioned from the plurality of suction units is transferred along with air through the fiber waste transfer pipe; a fiber waste collection unit 13 for collecting therein the fiber waste transferred through the fiber waste transfer pipe; a cyclone separator 30 arranged between the fiber waste transfer pipe and the fiber waste collection unit configured to separate the fiber waste from the air transferred through the fiber waste transfer pipe so as to collect the separated fiber waste in the fiber waste collection unit; and an air discharge unit 50 connected to the cyclone separator for discharging the air obtained after having been separated from the fiber waste. The fiber waste includes a polyester fiber or a polyamide fiber. The cyclone separator includes a body portion 32 in a tubular shape connected with the fiber waste transfer pipe such that a longitudinal direction of the fiber waste transfer pipe follows an inner peripheral wall of the body portion, the body portion being configured to cause the fiber waste transferred through the fiber waste transfer pipe to travel downward along the inner peripheral wall due to a centrifugal force; a fiber waste transfer portion 42 connected to a lower portion of the body portion; and a fiber waste discharge unit 46 for discharging the fiber waste separated from the air to the fiber waste collection unit. The fiber waste transfer portion has an inclined portion 44 whose diameter decreases from a point of connection with the body portion toward the fiber waste discharge unit. The inclined portion is formed in a tapered shape having an angle formed with respect to a vertical direction within a range of larger than or equal to 7° and smaller than or equal to 10°.

An object of the present invention is to cool a motor while wasteful electric power consumption is suppressed.The following components are provided: a contact roller motor 32 configured to rotationally drive a contact roller; an inverter 32a configured to adjust the rotation speed of the contact roller motor 32; a fan configured to send cooling wind to the contact roller motor 32; a fan motor 33 configured to rotationally drive the fan; an inverter 33a configured to adjust the rotation speed of the fan motor 33; an input unit 27 into which the winding speed of winding a yarn Y can be input; and a controller 29. When the yarn Y is wound, the controller 29 controls the inverter 32a based on the winding speed of winding the yarn Y so as to control the rotation speed of the contact roller and controls the inverter 33a based on the winding speed of winding the yarn Y so as to control the rotation speed of the fan. In this regard, the winding speed of winding the yarn Y is input into the input unit 27.

An object of the present invention is to effectively cool a motor even when the motor moves relative to a fixed fan, while the motor is protected by a cover member.The following components are provided: a first movement mechanism and second movement mechanism configured to move a contact roller 25; a contact roller motor 32 which is attached to a front end portion of the contact roller 25 and which is configured to rotationally drive the contact roller 25; and a front cover 26 including a base portion 26a which opposes the contact roller 25 over the contact roller motor 32 in a front-rear direction and which is provided with an opening 26a1; and a fan 33 which is attached to the front cover 26 while being provided in the opening 26a1 and which is configured to send cooling wind to the contact roller motor 32 side in the front-rear direction. When viewed in the front-rear direction, the fan 33 is provided so that at least a part of an outlet overlaps the contact roller motor 32 positioned in a traveling range of the contact roller motor 32.

After one bobbin holder supporting a package stops rotating, a yarn end included in the package is suppressed from being caught on the other bobbin holder side. A spun yarn take-up machine 1 includes a bobbin holder 24A, a bobbin holder 24B, a switching unit (a turret 23, a first partition 27, and a shift guide 29) configured to be able to perform a switching operation, a first partition 27, and a second partition 28. The spun yarn take-up machine 1 is provided with a slide mechanism 60. When the switching operation has been completed and a package P is held by the bobbin holder 24A, the slide mechanism 60 performs a reducing operation of narrowing a gap Gl when viewed in an alignment direction, as compared to a case where a yarn Y is connected between a bobbin B2 and the package P in the switching operation. After the completion of the reducing operation, the slide mechanism 60 prohibits the yarn Y from passing through the gap Gl.

In a yarn processing apparatus, the state of a yarn is accurately detected with a simple structure. An oil supply guide 10 configured to apply oil to a yarn formed by binding filaments spun out from a spinning unit is conductive or intermediate-conductive at least at its contact portion with the yarn. A static electricity quantity detection circuit 51 is configured to output a signal corresponding to the quantity of static electricity generated in the oil supply guide 10 due to contact between the yarn and the oil supply guide 10. When the maximum change quantity ΔE of the static electricity quantity indicated the signal output from the static electricity quantity detection circuit 51 during a period from a time point before a predetermined time to the present is equal to or less than a threshold ΔEa (S102: YES), a controller 52 outputs a first signal which indicates that the state of the yarn at the oil supply guide 10 is a predetermined state (S103). When the maximum change quantity ΔE is above the threshold ΔEa (S102: NO), the controller 52 outputs a second signal which indicates that the state of the yarn at the oil supply guide 10 is not the predetermined state (S104).