摘要:
A method of operating a textile machine for producing cheeses, at whose workstations (1) yarn (2) is unwound from supply bobbins (3), checked, cleaned of yarn defects and wound onto larger-volume cheeses (4) during which the yarn defects occurring the winding process in a given yarn length are registered. When a predetermined number of yarn joinders is exceeded within a predetermined reference yarn length, the winding process is stopped and the yarn length with the excessive number of joinders, already wound onto the cheese, is removed from the cheese (4).
摘要:
A yarn dye tube includes end portions having male and female elements for aligned stacking of multiple tubes. The female end portion includes a cylindrical ring having non-perforating recesses defining reduced wall portions having a thickness of at least one-half of a wall thickness of ring. Each recess also includes arcuate ends for reducing stress concentrations. The diameter of the inner surface of the female element is greater than that of the inner surface of the ring defining an annular distance therebetween. A radially extending shoulder at the terminal end of the ring contacts the male element of an adjacent tube in a stack of aligned tubes. A fillet at the terminal end of the first end portion ring extends over a substantial portion of the annular distance for reducing stress concentrations.
摘要:
A filament winding apparatus winds yarn impregnated with resin around the surface of a mandrel with a guide member that moves back and forth axially. Yarn winding is initiated while an end of the yarn is held by a holding device provided in a relatively rotatable manner on a rotary shaft. After winding is started, the yarn extending from the mandrel to the holding device is cut. When winding is finished, the yarn is held with the holding device and the yarn is cut between the mandrel and the holding device with a yarn cutting device.
摘要:
A support tube for winding yarn on a bobbin made of cardboard or another material suitable for the purpose and with a cylindrical or frustum of cone form. Such a tube is characterized in that it is equipped, on its side surface, with at least two indentations or attaching or capturing the end of the thread to be wound on the support itself.
摘要:
The direct roving winder has a machine frame which carries at least one winding spindle for the production of one or more roving packages and a cross-winding device. An apparatus for contactless detection of the actual diameter of a roving package is also provided which has a laser sensor with a transmitter and a receiver for laser radiation in which the distance of the laser sensor from the package surface is ascertained by means of the radiation from the transmitter to the package surface and back to the receiver. The laser sensor can be mounted in stationary manner on the machine frame or on the displacement device. The laser sensor can be arranged in a housing with an opening for the passage of the laser beam, in which there is a free space between the laser sensor and the inside of the housing into which compressed gas is introduced which exits through the opening.
摘要:
A method of winding the yarn traveling at a work station of a spinning bobbin winding machine or of a bobbin winding machine from a yarn source onto a take-up bobbin (4). After each yarn interruption, the yarn end is unwound from the take-up bobbin (4), a yarn joinder reconnects the yarn source and the take-up bobbin (4) and the winding process is then continued if a tolerable yarn joining location is present. Upon the occurrence of each yarn interruption, the amount of yarn wound since the last yarn joinder is determined. If such amount of yarn is determined to be less than a predetermined amount of yarn, a sufficient amount of yarn is unwound and separated from the take-up bobbin (4) to include the last-occurring yarn joining location in the separated yarn section. This results in an optical improvement in the quality of the finished textile product.
摘要:
It is an object of the present invention to provide a take-up winder for filament yarn capable of relating the device for bobbin holder such as a compressed air supplying device or a rotating speed measuring device, to the change in the position of the bobbin holder. The present invention comprises a revolving device 13 for changing the position of a plurality of bobbin holders 5,5 by rotating, a swinging member 21 capable of swinging to both directions around the rotating center line M of the revolving device 13, an interlocking means 22 for interlocking the revolving device 13 and the swinging member 21 capable of being connected and disconnected, and a device for bobbin holder 23 provided in the swinging member 21. The device for bobbin holder 23 is a compressed air supplying device 18 for supplying compressed air for the bobbin releasing operation to the bobbin holder 5 for an wound-up bobbin B-2, or a sensor 35 of a rotating speed measuring device 19 for measuring the rotating speed of the bobbin holder 5 for a winding bobbin B-1.
摘要:
An interface for feeding fresh spinning cops (19) into the transport system (21) of a textile machine that produces cross-wound bobbins. The interface comprises a centering device (33), installed in the area of a receiving conveyor (1), for placing the spinning cops (19) onto insertion spindles (65) of transport pallets (17) circulating in the transport system (21) and an impressing device (26) for fixing the spinning cops (19) onto the receiving spindles (65). A drive (27) is arranged in the area of the receiving conveyor (1) which drive effects the transporting of the transport pallets (17) on the receiving conveyor (1) and the actuation of the centering device (33).
摘要:
A motor, characterized in that a balance-correcting portion is provided within a range of nullL/3 in the axial direction from the center of the overall length in the axial direction of the rotor of the motor, where L denotes the overall length; a yarn winder provided with the motor; and a yarn package production method using the yarn winder. A long spindle capable of rotating at a high speed is used to allow yarns to be wound at a high speed in a large amount, thereby improving the productivity of yarn packages.
摘要:
The washing machine for a continuously running yarn includes a machine housing (1), a supporting arm (12) projecting from an upper part of the machine housing; two bobbin spindles (6,7) for respective bobbins sleeves (8,9); changing units for the bobbin spindles in the supporting arm (12); a contacting roller (13); drive motors for the bobbins spindles, the contacting roller (13) and the changing units (14) and an electronic device including a rectifier for supplying the drive motors with electrical energy. The electronic device, the supporting arm, the contacting roller and the bobbins spindles are all on the same side of the machine housing. In order to provide improved cooling the flat control housing (19) for the electronic unit is separately mounted below the supporting arm (12) near the feet (2,3) of the washing machine and has the cooling ribs (20) facing the bobbins so that an air flow is produced over the cooling ribs during operation because of motion of the bobbins.