Abstract: A portable actuator for a spindle brake associated with a textile machine includes a body, an arrangement for biasing the spindle brake operator to operate the spindle brake to halt rotation of the spindle with the biasing arrangement mounted to the body and an arrangement for retaining the actuator in an engaged operating relationship with the spindle brake operator with the retaining arrangement being mounted to the body with the entire device being selectively attachable to and detachable from the textile machine.
Abstract: In a shaftless spinning rotor assembly wherein the spinning rotor is the rotor of an axial field motor, an improved transfer of power and improved running properties are attained by forming the stator windings in channels which extend substantially radially in the stator core and are enclosed over at least a portion of their length by magnetically conducting material. As compared with known gap windings, the windings can be placed in multiple layers while at the same time avoiding marked graduations in permeance and in the specific current density so that eddy currents in the rotor can in turn be reduced and rotor heating remains within reasonable limits. The stator is preferably formed of multiple component parts which allows optimized selections of materials.
Abstract: The device comprises a support body (15) fixable to the machine structure and an operating lever (20) pivoted to the support body (15). Two parts (18a, 18b) are axially slidable within the support body (15), one carrying a brake shoe (19) arranged to act on the shank (11) of the spindle and the other engaged with the operating lever (20), the two parts (18a, 18b) being maintained axially spaced apart by a compression spring (24). A return spring (23) acts between the support body (15) and the part (18b) engaging the operating lever (20) to maintain the device in its inactive position. On pressing the lever (20), the brake shoe (19) is urged against the spindle shank (11) with a pressure which depends on the spring (24) interposed between the two parts (18a, 18b), independently of the force exerted on the operating lever (20), so preventing damage or operational problems arising in the spindles if the operator presses excessively on the operating lever (20).
Abstract: A frictional false twisting unit including a plurality of driven shafts, a driven pulley on one of the shafts, an externally arranged motor with a drive shaft, an endless loop toothed belt between the drive shaft and the driven pulley. The shafts are on a carriage or base plate which is moveable or swingable with respect to either the motor or a base plate on which the motor is disposed. The shaft carrying base plate or carriage is movable to slacken the toothed belt, enabling removal of the driven pulley from the toothed belt and removal of the shafts from the unit. The thread monitoring devices of the unit remain with the unit while the shafts are removed. Channels for the lateral runs of the toothed belt prevent excessive spread of the belt when it is slack and when the driven pulley is removed. A guide beneath the belt prevents the belt from moving down axially when the belt is slack and the driven pulley is removed.
Abstract: In an open-end rotor spinning machine having a plurality of spinning stations located next to one another, each spinning station has a spinning rotor (40) which is arranged in a housing (1) and has a drive spindle (42) extending transversely to the machine longitudinal direction. This drive spindle (42) is mounted in the gusset portion of a supporting disk bearing (44). The supporting disk bearing (44) is supported by the housing (1) which accommodates the spinning rotor (40) and which is mounted on a swivelling axis (10). The spinning rotor (40) is driven by a drive belt (43) extending in the machine longitudinal direction. The housing (1) can be swivelled away from this drive belt (43) to such an extent that the housing (1) can be removed from its receptacle on the machine side.
Abstract: A braking device for spindles of textile machines, in which the spindle is caused to rotate by an endless drive belt; the braking device comprises a pivotable brake supporting member provided with a braking pad and a belt-disengaging idle roller. The brake support member is pivotable between a first operative position in which the braking pad and the roller are disengaged from the spindle and respectively from the drive belt, and a second operative position in which the idle roller disengages the belt from the spindle and the braking pad is pressed against the belt-pulley of the spindle; spring means act to maintain the brake support member in both operative positions.
Abstract: A false-twist apparatus has three parallel shafts carrying interleaved sets of friction disks interconnected by drive belts for joint rotation; one of these shafts is journaled in a stationary mounting plate while the others are journaled in a carrier pivotally connected with that plate for swinging about a fulcrum offset from the three shaft axes whereby two of the disk sets can be separated to facilitate the introduction of a yarn into the intervening twisting region. A whorl on the carrier-supported shaft nearest the fulcrum is normally driven by frictional contact with a continuously moving tangential belt but is disengaged from that belt in the swung-out position of the carrier so that the disks are arrested during introduction of the yarn.
November 26, 1982
Date of Patent:
December 4, 1984
Fag Kugelfischer Georg Schafer & Co.
Gunther Schmitt, Gunther Oppl, Kirit Patel, Theo Bieber
Abstract: An apparatus and method for stopping operation of an open-end spinning machine is disclosed whereby the rotor shaft 1 of the spinning rotor and the shafts 30, 40 of the support rollers 3, 4 are rapidly but gently stopped by applying a braking force to the shafts of the support rollers after the rotor shaft is braked. Preferably a single force is shared and applied in timed sequence for braking the rotor shaft and the support roller shafts. The apparatus for carrying out the method includes a pivotable lever 7 which is pivotable about an axis 70 and carries a support 73 having a brake lining which receives the rotor shaft 1. A belt lifting roller 72 is carried on the pivotable lever which lifts a tangential belt 5 off of the rotor shaft 1 to thus stop the drive of the spinning rotor. The support 73 is elastically carried on the lever 7 by means of a U-shaped spring 74.
December 16, 1981
Date of Patent:
September 6, 1983
Schubert & Salzer
Eberhard Grimm, Rudolf Oexler, Eugen Hini
Abstract: A pivotable spindle mounting provided on a machine frame such as a wrap spinning machine that has a spindle mounted on a pivotable arm. The pivotable arm is mounted on a support bolt. A stud is carried on the support bolt and extends through a slide provided in a bushing that is rotated, the pivotable arm with the spindle thereon is rotated beneath a cover and upon a counter-force engaging the pivotable arm, the pivotable motion of the arm and spindle is converted to a lifting motion wherein the top of the spindle is positioned closely adjacent an opening in a cover.
Abstract: A device comprises a housing (1) which carries bearings (2) of a rotor (3), a cylindrical pivot (4) fixedly secured to the housing (1), a latch (7) attached to the housing (1) by a spring (6), and a brake shoe (11). In accordance with the invention a strap (10) to which at least one brake shoe (11) and said latch (7) are fixedly secured is installed for a reciprocating movement on the housing (1).
October 27, 1980
Date of Patent:
April 19, 1983
Abdurakhim Abduganiev, Valentin N. Tikhonov, Gennady N. Shlykov, Vitaly I. Zhestkov, Timur P. Krjuk, Viktor M. Mukhin, Jury N. Tikhonov
Abstract: A pirn exchange apparatus in double twister includes a bolster supporting a wharve of a spindle unit thereon. The bolster is mounted on a machine stand rotatably with one axis being as the center so that the bolster with the spindle unit is shifted in a tilting manner between the twisting position and the pirn exchange position.
Abstract: A device is disclosed, as an attachment to a spinning, or a doubling frame, for stopping the rotation of the spindle and the sliver feed whenever a sliver or a thread breaks and for giving, at the same time, a warning signal (e.g. a luminous signal) to a watching operator. The device comprises a thread feeling whisker connected to a circuit which controls electromagnetic clutches connected to the spindle, and the spindle braking and stopping mechanism is connected by a flexible cable to a sliver-pinching press so that as soon as the spindle is being braked and stopped the sliver is pinched and sliver feed is discontinued. The electric circuit also comprises an indicator lamp.
Abstract: Disclosed herein is a shock-isolating mounting for textile machinery spindles, which comprises a mobile resting block for the spindle with hinging components designed in order to move the spindle from an upright position, in which the spindle is in contact with a control belt, to an inclined position, in which the spindle is in contact with a brake; the above hinging components comprise some hinging units made of elastomeric material and a toggle-jointed thrust element connected in said manner to one of the aforementioned hinging components.
Abstract: An apparatus for bringing to rest the rotor of an open-end spinning apparatus which is covered by a cover. The rotor is mounted in a wedge gap formed by freely rotatably support rollers and pressed against the support rollers and driven by a tangential belt. An axial force arising from the support rollers presses the rotor against an axial stop. A lever is provided for lifting the shaft off of the support rollers and against stops for arresting the rotation of the rotor. Compressed air is applied to the rotor when the rotor is being brought to rest for maintaining the shaft of the rotor against the axial stop.
Abstract: An apparatus for bringing to rest the rotor of an open-end spinning device, the shaft of which rotor is mounted in a wedge gap formed by freely rotatable support rollers and being pressed against the support rollers and driven by a tangential belt. An axial force arising from the support rollers presses the rotor shaft against an axial stop and in bringing the spinning apparatus to rest the shaft is moved away from the normal running position on the support rollers to an arrested position off of the support rollers. The shaft extends through bores provided in a pair of spaced bearings. A conically tapering section is provided on the shaft which engages a correspondingly conically shaped wall of the bore for applying an axial force to the shaft when the shaft is moved from the running position to the arrested position.
Abstract: Stopping means for an open-end spinning turbine comprises a lever pivotable beneath the shaft of the turbine and the drive belt for the shaft. The lever moves toward the belt and the shaft to sequentially lift the belt off the shaft and lift the shaft from its support rollers.
Abstract: A brake device is provided for stopping the rotation of a rotor shaft of an open-end spinning unit wherein a rotor shaft is turnably supported by a bearing assembly which is held by a bushing member by way of a resiliently yieldable member disposed between the bearing assembly and the bushing member, a brake shoe is resiliently held by a spring means disposed to a bracket of the brake device so that an excess force for urging the brake shoe toward the rotor shaft can be absorbed into the spring means.
Abstract: A double-twist apparatus has a support provided with a journal in which is rotatably received a sleeve having an eccentric bore in which is centered the shaft of a twist spindle. A whorl carried on the shaft is engageable with a flat belt and rotation of the eccentric spindle within the fixed journal can move the whorl into and out of engagement with the belt. A lever is provided on the sleeve for angular displacement of this sleeve and a spring normally urges the sleeve into a position corresponding to engagement of the whorl with the belt or disengagement of the two. In the case of the spring urging the sleeve into the engaged position a toggle linkage is provided to hold the device in this position. In the arrangement where it urges the whorl away from the belt a spring-loaded device operated by a thread-tension sensor downstream of the apparatus is provided to stop the device in case of thread rupture. A brake is provided on the spindle shaft to arrest it when it is swung out of engagement with the belt.