Abstract: A multi-end revolving type automatic winding machine exhibiting high operationality, threading operability and space efficiency, and arranged such that two turret tables (3, 3?) are disposed on the opposite sides of a yarn passage, rotational directions of a press roller (9) provided for one turret table (3) and a press roller (9?) provided for the other turret table (3?) are reversed, rotational directions of one turret table (3) and the other turret table (3?) are reversed, and the center of each press roller (9, 9?) touching a bobbin holder or a yarn being wound during winding of yarn is located between an imaginary line c connecting the centers of two bobbin holders (4, 5) projecting from one turret table (3?) and an imaginary line c? connecting the centers of two bobbin holders (4?, 5?) projecting from the other turret table (3?).

Abstract: A multi-end revolving type automatic winding machine exhibiting high operationality, threading operability and space efficiency, and arranged such that two turret tables (3, 3?) are disposed on the opposite sides of a yarn passage, rotational directions of a press roller (9) provided for one turret table (3) and a press roller (9?) provided for the other turret table (340 ) are reversed, rotational directions of one turret table (3) and the other turret table (3?) are reversed, and the center of each press roller (9, 9?) touching a bobbin holder or a yarn being wound during winding of yarn is located between an imaginary line c connecting the centers of two bobbin holders (4, 5) projecting from one turret table (3?) and an imaginary line c? connecting the centers of two bobbin holders (4?, 5?) projecting from the other turret table (3?).

Abstract: A bobbin holder mounted on a yarn winding machine includes a plurality of chucking members disposed at an outer periphery of the holder. The chucking members are expanded radially outwardly so as to engage an inner side of a cylindrical bobbin coaxially inserted onto the holder when they are longitudinally compressed. The chucking members release the bobbin when they are moved radially inwardly. The portions on the holder for receiving the chucking members are formed as concaves, with a part of each chucking member inserted into a respective concave.

Abstract: A yarn winder, used for winding various kinds of yarns by automatically setting the moving speed of a bobbin holder so that it is suitable for the increasing size of the yarn package wound onto the winding bobbin holder. In the winder, while a contact roller (7) is pressed onto a bobbin (9) inserted onto a bobbin holder (8) or a yarn layer wound on the bobbin (9), a yarn (Y) is traversed by a traverse apparatus (6), and thus, the yarn is wound on the bobbin. The movement of the contact roller due to increase of the wound yarn is detected by a sensor (16), and the slider is moved based on signals detected by the sensor so as to move the bobbin holder in such a direction that it moves away from the contact roller. The slider is actuated by signals from the sensor detecting the amount of the movement of the contact roller, and the speed of the winder can be varied stepwise or continuously.

Abstract: A machine frame has a traverse device and a frame having a contact roller movably mounted thereon. A first slider guide member is substantially vertically disposed below the contact roller, and a second slider guide member is pivoted on a shaft spaced from the lower end of the first slider guide member, sliders are slidable along the slider guide members, carriers are connectable with and detachable from the sliders, and the carriers have bobbin holders rotatably mounted thereon. The bobbin holders move to a winding position, doffing position and stand-by position while the bobbin holders and carriers are transferred between the sliders of the slider guide members.

Abstract: A yarn traversing apparatus includes a first traverse member having rotary blades for traversing a yarn from a center toward ends of a traverse stroke, and a second traverse member having rotary blades for traversing the yarn from the ends toward the center of the traverse stroke in order to wind the yarn onto a bobbin to form a yarn package. Guide rails are provided so as to maintain the speed of the yarn constant as it is conveyed by the first traverse member, and to gradually decrease the speed of the yarn from the ends of the traverse stroke to the center of the traverse stroke as it is conveyed by the second traverse member, from a speed that is 1.5 to 7 times that of the first traverse member, to a speed substantially the same as that of the first traverse member.

Abstract: A path for guiding bobbin holders (7, 8) is formed in a closed loop shape on a machine frame (1), inner gear members (65, 66) are spaced in an axial direction of the bobbin holders (7, 8) and disposed along the bobbin holders guiding path. Two bobbin holders (7, 8) are supported on sliders (13, 14), respectively, and gear wheels (67a, 67b, 68a, 68b, 69a, 69b, 70a, 70b) disposed at the support portions of the bobbin holders (7, 8) engage with the inner gear members (65, 66). Two endless chains (82, 83) are spaced in an axial direction of the bobbin holders (7, 8) and disposed along the bobbin holders guiding path. The chains (82, 83) are connected to the bobbin holders (7, 8), respectively, whereby the bobbin holders (7,8) can be independently moved along the bobbin holders guiding path formed to locate a winding position, a doffing position, an empty bobbin donning position, a stand by position and a bobbin changing position.

Abstract: An apparatus for traversing a yarn along a bobbin, with which a contact roller contacts. The traversing apparatus is disposed below a fulcrum for traverse motion and comprises:a frame downwardly inclined relative to the moving direction of the yarn;spindles rotatably supported on the frame at apexes of a rectangle;first traverse blades, spaced downwardly from the fulcrum for traverse motion by a predetermined distance and secured to the spindles located remotely from the yarn, for traversing the yarn from ends of traverse stroke toward a center of the traverse stroke; andsecond traverse blades, spaced downwardly from the first traverse blades by a predetermined distance and secured to the spindles located closer to the yarn relative to the remote spindles, for traversing the yarn, which has been transferred from the first traverse means, from the center of traverse stroke towards the ends of traverse stroke.

Abstract: In a yarn winding apparatus which comprises a bobbin holder for holding a yarn winding bobbin and a contact roller pressed against the bobbin held by the bobbin holder or a package wound onto the bobbin and by which the yarn is continuously wound, the winding apparatus further comprises a rotating speed detector for detecting a rotating speed of the contact roller and a tension detector for detecting a tension in the yarn, and rotation of a motor for driving the bobbin holder is controlled based on information comprising data detected by the rotating speed detector and data detected by the tension detector so that the winding speed is adjusted to a predetermined value.

Abstract: First and second traverse devices comprising rotary blades are overlapped, and the first traverse device conveys a yarn to a traverse end, and the second traverse device receives the yarn from one of rotary blades of the first traverse device and engages it with another rotary blade of the first traverse device.

Abstract: A bobbin holder comprises a rotatable support member, a plurality of bobbin holding devices inserted onto the rotatable support member, and at least one cylindrical member inserted onto the rotatable support member and engaging with the bobbin holding device, so that bobbin holding devices are expanded so as to hold bobbins. A main compression member for radically expanding the bobbin holding devices is disposed at one end of the bobbin holder. At least one supplementary compression member for supplementing expansion force of the main compression member is disposed at an intermediate portion between a bobbin holding device located at the end where the main compression member is disposed and another bobbin holding device located at an opposite end.

Abstract: A lubricating device of a turret type change-over device wherein a plurality of rotating bodies are mounted on a rotatable turret table, comprising: a plurality of bearings adapted to rotate the rotating bodies with respect to the rotatable turret table; a lubricating oil chamber provided in the vicinity of the bearings; and a lubricating oil tank provided within the lubricating oil chamber, the oil tank being rotated in accordance with the rotation of the turret table to retain a lubricating oil therein and supply the same to the bearings.

Abstract: A bearing cooling apparatus of a heating roller wherein the heating roller includes a roller, heating means disposed inside the roller, and a shaft having the roller mounted thereon, comprising a housing having the shaft rotatably supported thereto by bearings attached to the housing and formed with a first passageway and a second passageway, and means for circulating a cooling medium through the first and second passageways. At least one of the first and second passageways extends along the bearing disposed adjacent the heating means and along the shaft and are disposed adjacent the bearing and the shaft.

Abstract: A method and apparatus for performing the method of winding a yarn on a bobbin holder so as to avoid a ribbonning phenomenon produced during winding, comprising the steps of rotating the bobbin holder; traversing the yarn along an axis of the bobbin holder to form a yarn package on the bobbin holder; setting a ribbon occurrence width and a lower limit value of a yarn winding angle at which the yarn is wound with respect to a vertical plane perpendicular to an axis of rotation of the bobbin holder; calculating an upper limit value of the yarn winding angle from the lower limit value in such a manner that a winding ratio, which is defined as a ratio of the number of rotations of the bobbin holder to the number of yarn traversing strokes, is not within the ribbon occurrence width; and as soon as the winding ratio reaches the lower limit value of the yarn winding angle, increasing rapidly the number of yarn traversing strokes from the lower limit value of the yarn winding angle to the upper limit value, and then

Abstract: A yarn traverse apparatus for winding a yarn on a bobbin, comprising setting means for setting a limit value of a crossing angle, a traverse stroke, a width of the yarn, and a ribbon occurrence region; means for detecting the number of rotations of the bobbin; means for detecting a winding speed of the yarn; means for calculating a diameter of the package in accordance with the number of rotations of the bobbin and the winding speed of the yarn; means for calculating a winding ratio in accordance with the number of turns of the yarn over two traverse strokes and with the number of turns of the yarn over one pitch corresponding to the limit value of the crossing angle, and varying the winding ratio in steps so that the winding ratio is moved outside the ribbon occurrence region when the package reaches a predetermined value within a predetermined region of the crossing angle; means for calculating the number of traverse strokes in accordance with the number of rotations of the bobbin and the winding ratio corr

Abstract: A drive method for the winding of a yarn wherein the yarn is wound on a bobbin holder and into a yarn package by contacting a contact roller with the package and controlling the number of rotations of the contact roller or tension of the yarn so as to be a predetermined value. When the contact roller is driven by an induction motor and also the contact roller is driven in pressing contact with the package by the induction motor, the number of rotations of the contact roller is given by the following equation: N=n1-(K.multidot.m (n0-n1)/T1), wherein the N indicates the number of rotations (r.p.m.) of the contact roller with which the contact roller is operated in pressing contact with the bobbin holder, the n0 indicates the number of rotations (r.p.m.) which is synchronized to the power frequency of the motor driving the contact roller, the n1 indicates the number of rotations (r.p.m.

Abstract: A spindle drive type yarn winding apparatus of the bobbin changing type includes a motor for driving a bobbin holder; an inverter for supplying electric power to the motor; a contact roller for contacting with and driven by a bobbin inserted on the bobbin holder or a package wound on the bobbin; a controller for performing at least integral control action to the motor so as to control the rotating speed of the contact roller at a predetermined value; a setter which sets the winding speed, density of the wound package, stroke of the wound package and denier of the wound package, a first arithmetic circuit which calculates the diameter of the wound package; a second arithmetic circuit which calculates a gain of the controller based on winding conditions set by the setter, and diameter calculated by the first arithmetic circuit; and an altering device which alters the gain of the controller based on at least one factor set by the setter and the diameter of the wound package calculated in the first arithmetic cir

Abstract: An apparatus for monitoring abnormality in a yarn winding apparatus, which is characterized by a means for previously setting a basic value of a winding factor, a means for detecting a present value of winding factor, a means for comparing the present value of winding factor detected by the winding factor detecting means with the basic value set by the basic value previously setting means, and a means for emitting an alarm signal when the detected present value of winding factor exceeds more than a set range from the set basic value as a result of comparison in the comparing means.

Abstract: A guide device (20) for separating a plurality of yarn passages comprising:a rod member (24) movable in its lengthwise direction;a plurality of slide members (25a-25d), provided with yarn guides (22) and movable along the rod member (24);the rod member (24) and the slide members (25a-25d) are inserted into and movable along a hollow cylindrical guide rail member (21);the rod member (24) having at least a pair of guide pulleys (30), which sandwich the slide members (25a-25d) between them;a strand-like member (28) wrapping around the guide members (30);the strand-like member (28) is connected to one of the slide members (25a-25d) and a stationary member;connecting members (26) having engaging members (26b) at ends thereof are loosely inserted between adjacent slide members (25a and 25b, 25b and 25c, 25c and 25d); andthe distance between the engaging members (26b) of the connecting member (26) is equal to the sum of the distance between the yarn guides (22) under yarn passages separating condition and the thickn

Abstract: A yarn winding apparatus of automatic bobbin changing type comprising:a turret turnably mounted on a machine frame;a plurality of bobbin holders which are rotatably supported on the turret and which receive bobbins;the bobbin holders being alternately located at a yarn winding position where a yarn is wound onto one of the bobbins to form a full bobbin and at a doffing position where the full bobbin is doffed;a plate separator which has a cross section of an arc of a circle and which is movable from a standby position located at a side of the bobbin holders to a separating position located between the yarn winding position and the doffing position;a means for sliding the separator which is connected to the separator and which slides the separator in a lengthwise direction of the separator so that a front end of the separator moves across an imaginary line connecting centers of the bobbin holders.