摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A safety device of a spindle drive type winding apparatus wherein the rotational speed of a spindle on which a yarn package is formed is controlled in accordance with a peripheral speed of a yarn package formed on the spindle or tension in yarn to be wound to form a yarn package in such a manner that the rotational speed is gradually decreased during a normal winding operation. The device comprises:a member for detecting the driving rotational speed of the spindle;a minimum value holding member for holding the minimum value of the driving rotational speed of the spindle from the start of the normal winding operation to the time just before the measurement of the rotational speed by means of the detecting member; anda member for comparing the rotational speed detected by the detecting member with the minimum value held in the minimum value holding member and for emitting a stop signal to the winding apparatus when the rotational speed is larger than the minimum value by at least a predetermined allowance.
摘要:
An improved method and apparatus for automatically changing bobbins and winding yarn continuously in a winding or taking-up apparatus provided with a rotatable turret whereon a pair of bobbin holders are rotatably mounted. Each bobbin utilized for this apparatus is provided with a yarn catching groove formed on a peripheral portion thereof. When the bobbin exchanging operation is carried out, the turret is turned in a direction opposite to the rotational direction of fresh and full packaged bobbins held by the corresponding bobbin holders so that the yarn passed through a traverse guide of the apparatus is aligned with the yarn catching groove of the fresh bobbin whereby the yarn is engaged with the above-mentioned yarn catching groove.
摘要:
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′).
摘要:
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 corresponding to the package diameter; and a traverse mechanism for traversing the yarn in accordance with an output of the traverse operation means.
摘要:
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.) of the motor with which only the contact roller is driven, the T1 indicates a load torque (kg cm) of the motor with which only the contact roller is driven, the m indicates the number of packages which are wound in contact with the contact roller, and the K is beween 0 and 1.5.