WO1991002112A1 - Procede et appareil de commande d'une unite annulaire rotative de metier a filer ou analogue - Google Patents

Procede et appareil de commande d'une unite annulaire rotative de metier a filer ou analogue Download PDF

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Publication number
WO1991002112A1
WO1991002112A1 PCT/JP1990/000998 JP9000998W WO9102112A1 WO 1991002112 A1 WO1991002112 A1 WO 1991002112A1 JP 9000998 W JP9000998 W JP 9000998W WO 9102112 A1 WO9102112 A1 WO 9102112A1
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WO
WIPO (PCT)
Prior art keywords
ring
speed
spindle
rotating body
rotation speed
Prior art date
Application number
PCT/JP1990/000998
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Yamaguchi
Masashi Yamaguchi
Original Assignee
Kimura, Hiroshi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kimura, Hiroshi filed Critical Kimura, Hiroshi
Publication of WO1991002112A1 publication Critical patent/WO1991002112A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/58—Ring-and-traveller arrangements with driven rings ; Bearings or braking arrangements therefor

Definitions

  • the present invention is used for a textile machine such as a ring spinning machine and a ring twisting machine provided with a ring rail and a spindle drive mechanism, and is provided with an annular holder and a bearing mechanism fixed horizontally to the ring rail.
  • a ring rotating body rotatably coaxially supported by the holder, a spindle arranged coaxially in an inner space of the ring rotating body and driven by the spindle driving mechanism, and the ring described above.
  • the present invention relates to a method and an apparatus for controlling a rotating ring device including a rotating speed control means for controlling a rotating speed of a rotating body.
  • the textile machine means any machine having a twisting mechanism in which twist is applied using a ring and a spindle, and not only a spinning machine but also a drawing machine used in the production of synthetic fibers and a cover yarn production. Including twisting machine. Further, the thread used includes all kinds of filaments such as natural fibers, artificial fibers, metal wires and the like. Background technology
  • the bearing mechanism of the conventionally known rotary ring twisting device has various problems.
  • the rotation of the ring rotating body slows down due to coasting rotation more slowly than the rotation of the spindle.
  • the rotating body may overrun the spindle. This overrun causes a snare in the twisting yarn, and the yarn breaks when the spinning machine or the like is restarted. Therefore, the rotating ring twisting device, which has been highly evaluated as a ring corresponding to the high speed rotation of the spin dollar, has not been put to practical use at present.
  • the number of tills of the spindle is reduced stepwise when the machine is stopped, so that the spinning tension is reduced and the torque applied to the ring rotating body by the traveler is reduced.
  • Method to stop the machine after reducing the rotation speed of the ring rotating body at the same time, or simultaneously apply pinching friction to the ring rotating body of all weights when the machine stops simultaneously, oil or air Such as flow A method of braking by body resistance has been proposed. However, these methods stop the ring rotating body with respect to the entire weight of the machine when the machine is fully stopped, and do not brake the individual ring bodies of the machine.
  • rotary ring devices are widely expected as an excellent means of speeding up.
  • the problem of controlling the rotation speed of the ring rotating body caused by the high speed of the spindle occurs not only during simultaneous stopping of the momentum but also during twisting work. That is, in a rotary ring device, the rotation speed of the ring rotating body increases in proportion to the increase in the rotation speed of the spindle. This means that the higher the spindle speed, the higher the inertia of the ring rotor.
  • the rotating ring device when the twisted yarn is wound around the bobbin, the traveler of the travel is slightly faster in the thicker part of the yarn layer on the bobbin than in the thinner part, so that it is stable. Winding is performed.
  • the same inventor as the present application has disclosed a rotating ring device capable of rotating the ring rotating body at high speed and having a rotating speed control means for suppressing the rotating speed of the ring rotating body disclosed in Japanese Patent Laid-Open No. 2-74633.
  • the Gazette and Japanese Patent Application No. 63-282854 filed on November 8, 1988 were proposed in Japanese Patent Application No. 1-1107060 filed on April 26, 2001, claiming priority over Ban.
  • the ring rotating body is rotatably supported by a magnetic bearing including at least a part of an electromagnet with respect to the holder.
  • the latter rotary ring device is configured to include a motor including a permanent magnet provided on a ring rotating body and an armature provided on a holder.
  • the first object of the present invention is to control the rotation speed of a ring rotating body when performing a twisting operation using a rotating ring device.
  • the ring rotating body is made to have the same speed as the traveler. Prevention of overrun when rotating body stops
  • An object of the present invention is to provide a method for controlling a twisting operation of a rotary ring device that can be performed in a yarn process.
  • a second object of the present invention is to provide a twisting operation control device for a rotary ring device capable of performing the method of the first object.
  • a first object of the present invention is to detect the rotational speeds of a ring rotating body and a spindle, respectively, and compare the detected rotational speeds with each other.
  • the rotational speed of the ring rotating body is predicted with respect to the rotational speed of the spindle.
  • Controlling the rotation speed of the ring rotator by rotation speed control means so as to fall within the range of the optimal rotation ratio set in advance. Achieved by the method.
  • the control by the optimal ratio control means determines the difference between the detected rotation speed of the ring rotating body and the target rotation speed of the corresponding ring rotating body set in the control program. It is preferable that the correction control is performed so as to reduce the number.
  • the control program for the rotation speed of the ring rotating body is increased from the start until the maximum speed is reached, at a rotation speed lower than the traveler rotation speed and at least not higher than the speed increase rate of the spindle rotation speed. Controls the ratio of the ring acceleration curve to the spindle acceleration curve that increases at the speed ratio, and reduces the rotation speed of the ring rotating body in the middle ball spinning stable section after the spindle speed reaches the maximum speed.
  • the spindle rotation speed is maintained within the range of 40% to 60% of the spindle rotation speed ratio, and then, in the section where thread breakage frequently occurs before full filling, the rotation of the ring rotating body is performed before the rotation speed of the spindle is reduced from the maximum rotation speed.
  • the deceleration rate is at least not lower than the deceleration rate of the spindle rotation speed, and the ring rotating body stops less.
  • the rotation is performed before the stop of the rotation of the spindle, and the rotation speed of the rotating body is controlled by the program.
  • control program that controls the rotation of the spindle and the control program that controls the rotation of the ring rotator are optimally correlated, and the rotation of the ring rotator is performed.
  • the spindle's highest speed operation section is made the longest, and the speed is controlled. In this case, productivity can be improved and stable operation can be performed in all spinning processes.
  • a magnetic bearing can be used as the bearing mechanism.
  • the magnetic bearing referred to here is constituted by an annular magnet arranged coaxially on the axially and diametrically opposed surfaces of the ring rotating body and the holder 1 such that the same poles are opposed to each other with a small gap therebetween. And each of the opposing surfaces is formed into a contour such that when the ring rotating body moves in the axial direction with respect to the holder, a part of the surfaces comes into contact with each other.
  • the control of the rotation speed of the ring rotator by the rotation speed control means controls the strength of the magnetic field of the electromagnet, whereby the ring rotator and the holder are controlled. This is done by adjusting the air gap in the magnetic bearing between the two to control the torque that rotates the ring rotating body.
  • the control of the strength of the magnetic field of the electromagnet can be performed by changing the strength or direction of the current flowing through the electromagnet.
  • a rotary ring in which the ring rotating body is rotatably supported by a bearing mechanism with respect to a holder, and a ring motor is formed by an annular permanent magnet provided on the ring rotating body and an armature provided on the holder.
  • the rotation speed of the ring rotating body is controlled by the rotation speed control means by controlling the current flowing through the armature.
  • a control device of a rotary ring device includes a ring spinning machine and a ring twisting machine provided with a ring rail and a spindle drive mechanism.
  • Ring holder which is used for a simple spinning machine or a twisting machine, and is fixed horizontally to a ring rail, a ring rotating body rotatably supported by the holder via a bearing mechanism, and a ring rotating body.
  • a textile machine having a plurality of rotary ring devices including a spindle coaxially disposed in an inner space and driven by the spindle drive mechanism, and a rotation speed control unit for controlling a rotation speed of the ring rotating body.
  • An apparatus for controlling the rotary ring spinning apparatus of the present invention wherein a magnetic bearing is used as the bearing mechanism, and the magnetic bearings are arranged in the axial direction and the linear direction of the ring rotating body and the holder, respectively.
  • Annular magnets arranged on the same axis so that the same poles face each other via a minute gap on a radially opposed surface, and the respective opposed surfaces are arranged such that the ring rotating body is in the axial direction with respect to a holder.
  • At least one of the plurality of annular magnets on the side of the holder is an electromagnet
  • the rotating ring spinning device con A trawl device, a ring speed detecting means for detecting a rotational speed of the ring rotating body, a spindle speed detecting means for detecting a rotational speed of the spindle, a target rotational speed of the ij rotating body with respect to the spindle; Suppression rate storage means for storing a suppression rate which is a ratio, a multiplier and a stage for multiplying the tillage speed detected by the spindle speed detection means by the suppression rate, and a multiplication result obtained from the multiplication means and Comparison means for comparing with the rotation speed detected by the ring speed detection means Current control means for controlling a current flowing through an electromagnet provided in a holder of the bearing mechanism based on a comparison result of the comparison means so that a rotation speed of the ring rotating body becomes a target rotation speed.
  • a spindle speed detecting means a suppression rate storage means and a multiplying means are provided for each machine of the textile machine, and a plurality of other elements are provided. It is provided in each of the rotary ring devices.
  • a motor may be formed by disposing an annular permanent magnet on the ring rotating body in the area of the bearing mechanism and disposing an armature on the holder.
  • the control means is configured to control the current flowing through the armature.
  • the rotational speed of the spindle is controlled to a predetermined rotational speed in the entire section from the start of the yarn package to the completion thereof.
  • a means for storing a control program to be executed is further provided, and the spindle is rotated based on the control program of the storage means.
  • the control speed is set so that the rotational speed of the spindle changes along with the formation of the yarn in the entire section from the start to the full pipe.
  • the input program storage means stores optimum spinning conditions for all spinning processes set for each of various types of spinning products. Suppressing the target rotation speed ratio of the ring rotating body to the spindle rotation so that the number of spindle rotations can be controlled in accordance with the split ratio of the thread based on the detection of the twig length. The rate is memorized.
  • the optimum spinning program ⁇ is inputted and stored in a group management control system composed of machine units having the same conditions, and each of the spinning groups under the same conditions is stored.
  • the optimum spinning conditions including the average spinning tension are detected, the group average value is determined, and the detected average value and the optimum spinning program that falls within the optimum spinning condition range including the set and stored optimum spinning tension are used. It is preferable to perform the group management control of the rotation speed of the spindle and the rotary body of the rotor by performing the operation.
  • a permanent magnet that is annularly installed substantially at the center of the outer periphery of the ring rotating body and is integrated with the ring rotating body, and the outside of the permanent magnet is concentrically annular. Since the surrounding magnet on the fixed holder side faces each other with the same poles sandwiching the micro annular air gap, they repel each other and levitate and hold the ring rotor in a non-contact manner to form a magnetic bearing.
  • Some of the annular magnets on the fixed holder side are made up of electromagnets, and the magnets that generate a component force in the axial direction of this electromagnet change the magnitude or direction of the current flowing through this electromagnet.
  • the electromagnetic levitation force or electromagnetic attraction force in the axial direction of the ring rotating body that is, the vertical direction of the ring rotating body
  • the ring rotating body changes in the direction in which the magnetic levitation force becomes weaker or electromagnetic attraction force.
  • the magnetic pole surface on the side of the ring rotating body comes into contact with the magnetic pole surface on one side of the holder via a sliding member or the like. Since the strength of the contact pressure can be controlled by the strength and direction of the current flowing through the holder-side electromagnet, the braking force can be controlled by the magnitude of the contact friction pressure.
  • the ring rotating body When the magnetic force on the ring rotating body side and the magnetic force on one side of the holder support the weight of the ring rotating body and are still in a balanced state, the ring rotating body is completely magnetically levitated and becomes a non-contact magnetic bearing.
  • the rotor rotates up to the maximum speed until it reaches the same speed as one rotation of the traveler.
  • the current flowing through the electromagnet is adjusted and controlled, and the contactless giving resistance by magnetic force difference between the magnetic bearing arrangement homopolar controls-ring rotation, further rotating rotary body by increasing the magnetic force difference through the sliding member, resulting in contact friction with the upper and lower one magnetic pole c
  • the machine stand or other rapid ring rotation stop is required, reversing the ⁇ ten '' and ⁇ one '' directions of the current flowing through the electromagnet coil will result in the same pole confrontation balanced by repulsion or attractive magnetic force.
  • the rotating body is magnetically attached to one of the upper and lower magnetic poles on the holder side, stops rotating under sudden braking, and performs the function of adjusting and controlling the ring rotation more electrically than outside.
  • FIG. 1 is a block diagram showing a preferred example of a method for controlling a rotary ring device of the present invention.
  • FIG. 2 is a partial sectional view showing an example of a rotary ring device used as a control object of the present invention.
  • FIG. 3 is a diagram showing an example of the spinning program stored in the program storage means.
  • FIG. 4 is a flowchart showing an example of the operation by the ratio St means and the control drive circuit.
  • 5 to 7 are partial axial sectional views showing other examples of the rotary ring device used as a control object of the present invention.
  • FIG. 2 is a partial axial sectional view showing an example of a rotary ring device used as a control object of the present invention.
  • a ring rotating body 1 has a flange rotor 2 having a ring flange portion 2a on which a traveler 21 slides and rotates, and a screw 2b attached to the flange rotor 2. And the lower rotor 3 joined together.
  • the lower rotor 13 is made of a non-magnetic metal material such as an aluminum alloy, a ⁇ alloy, stainless steel, or a carbon-based material having a magnetic-shielding effect, or a conductive synthetic resin material, or the like. Travel Minimize the effect of magnetic flux leakage on LA21.
  • the ring rotating body 1 is rotatably supported by a holder ⁇ ⁇ ⁇ ⁇ by a bearing mechanism G, and the holder ⁇ is fixed by screws 25 after being fitted into a mounting hole 23 a of a ring rail 23.
  • the bearing mechanism G is configured as follows.
  • Two annular permanent magnets 11 and 12 are fixed to recessed grooves 3a formed in the lower rotor 13 of the ring rotating body 1 via spacers 15a and 15b. Tapered surfaces 11 a, 12 a having an angle of approximately 45 degrees with respect to the axis are formed on the outer peripheral portions of the permanent magnets 11, 12 in the radial direction, and the tapered surfaces 11 a, 12 a are formed.
  • the 12a magnetic pole is formed as an N pole.
  • the spacer 15b is used to magnetically shield the leakage magnetic flux of the permanent magnets 11 and 12 from leaking to the outside, particularly to the ring flange portion 2a and the traveler 121 so as not to adversely affect the magnetic flux.
  • the holder 7 is composed of a holder body 8 and a cover 9 connected with screws 8a and the like.
  • An annular permanent magnet 13 and an annular electromagnet 14 are fixed to a recess 7 a formed in the holder 7 via a spacer 16.
  • the permanent magnet 13 and the electromagnet 14 have a tapered surface 13a, which has an angle of approximately 45 degrees with respect to the axis, on the inner peripheral portion on the inner side in the radial direction, and a substantially V-shaped groove is formed.
  • the tapered surfaces 13a, 14a and the above-described tapered surfaces 11a, 12a are arranged so as to oppose each other and have an appropriate gap. I have.
  • the magnetic pole of the tapered surface 13a has the same N pole as the tapered surface 11a described above.
  • the magnetic pole on the tapered surface 14a of the electromagnet 14 is formed as an N pole by passing a current in the normal direction to the electromagnet 14 through the lead wire 14b.
  • the strength of the magnetic pole of the electromagnet 14 can be adjusted by adjusting the current.
  • the electromagnet 14 can have various structures. For example, a large number of columnar electromagnets each formed by winding a coil around a columnar iron core having a circular or fan-shaped cross section are placed in a state in which one of the magnetic poles is in close contact with an annular magnetic plate forming a tapered surface 14a. Or a structure in which a coil is wound around a cylindrical iron core having a tapered surface 14a and attached to the recess 7a. .
  • These permanent magnets 11, 12, and 13 are anisotropic magnets made of metal, fluoride (oxide ceramic), rare earth, rubber, or plastic. If necessary, the permanent magnets 11, 12, 13 and the electromagnet may be provided on their opposing surfaces with lubrication-free sliding materials having a low coefficient of friction and excellent wear resistance and heat resistance (for example, ceramics). , Carbon fiber and other filled polytetrafluoroethylene resin (polyimide, polyimide amide, other polymer engineering plastics, etc.) sheet, film, or coating. To protect the pole surface.
  • the spacer 16 is formed of an electrically insulating material such as a my-force, a polymer resin, or ceramic, and electrically insulates the electromagnet 14 from the permanent magnet 13.
  • the sensor 17 is mounted on the holder body 8, and the bottom! A light or dark color or notch is provided on the outer peripheral surface of The sensor 17 is a detection member 18 for generating a pulse as a detection signal. By counting the detection signal of the sensor 17, the rotation speed (rotation speed) of the ring rotating body 1 is detected.
  • Reference numeral 4 denotes a dust cover
  • reference numeral 22 denotes a spun yarn C that is being wound from a snail wire to a not-shown tube yarn while being ballooned.
  • the above-mentioned rotating ring A has the same strength as the tapered surface 13a of the permanent magnet 13 on the tapered surface 14a of the permanent magnet 13 by applying an appropriate current to the electromagnet 14 via the lead wire 14b.
  • the tapered surfaces 11a and 12a and the tapered surfaces 13a and 14a repel each other, and the permanent magnets 11 and 12 float from the permanent magnet 13 and the electromagnet 14 and come into non-contact. State.
  • the ring rotating body 1 can be rotated by a very small rotating torque, and the energy bit due to friction or the like is extremely small, and the rotating torque of the traveler 21 increases the high-speed rotation. It becomes possible.
  • the braking force is controlled, and the rotation speed of the ring rotating body 1 and the time from the high-speed rotation to the stop can be controlled.
  • FIG. 1 is a block diagram of a control device H according to the present invention. Although only two spindles are shown in Fig. 1, all spindles of the spinning machine are actually targeted.
  • the program storage means 58 is composed of RAM or R ⁇ M, and the program storage means 58 has a spinning process of the whole spinning process set for each type of spun yarn. ⁇ -gram is stored. This spinning program is based on a pre-determined spindle according to the appropriate spinning tension range of each spun yarn and the ratio of split yarns based on the stretch length from the start of empty bobbin winding to the full tube. Standard rotation speed data for 53 and rotation ring 1 o
  • the spindle rotation speed is controlled by the ball separation ratio by detecting and inputting the ring rail position by sequentially touching the linear switch or the micro switch with multi-stage installation, and comparing the spindle with the previously input program.
  • the rotation speed is controlled.
  • the rotation speed data of the ring rotating body 1 is expressed as a suppression rate k, which is a target rotation speed ratio of the ring rotating body 1 to the spindle 53.
  • the spindle drive motor 51 rotates while being controlled by the spindle control means 50 to have a predetermined rotation speed based on data from the program storage means 58.
  • the rotation of the spindle drive motor 51 causes the spindle drive spindle 52 to rotate, and the rotation of the spindle drive spindle 52 causes the spindle 53 of each weight to rotate via a belt or the like.
  • the spindle drive spindle 52 is provided with a rotation speed detector 59 composed of a tachogenerator and a rotation pulse generator, etc., based on the output of the rotation speed detector 59 and a rotation speed detection circuit 60.
  • the rotation speed R s of the handle 53 is detected.
  • Multiplying means 57 multiplies the reduction rate k output from the rotational speed R s in the storage unit 58 of the spin dollar 53 detected by the rotation speed detection circuit 60, c and outputting the multiplication result as the target rotational speed R j
  • the rotation speed detection circuit 54 detects the rotation speed Rr of the ring rotator 1 by counting the pulse output from the sensor 17.
  • the comparison means 56 compares the rotation speed R r detected by the rotation speed detection circuit 54 with the target rotation speed R j output from the multiplying means 57, and outputs a correction signal Rh corresponding to the difference.
  • the braking drive circuit 55 adjusts the braking force in the bearing mechanism G by controlling the magnitude and direction of the current flowing through the electromagnet 14 based on the correction signal Rh output from the comparing means 56.
  • the rotation speed Rr of the ring rotating body 1 is controlled to be equal to the target rotation speed Rj.
  • Each of these circuits and means is realized by a hard circuit or by an appropriately programmed microprocessor.
  • Fig. 3 is a diagram showing an example of a medium-short standard cotton 40 IS to 601 S spout spout gram by a high-speed spinning machine equipped with a control device such as a sequencer. It is.
  • This spinning program is designed to keep spindle rotation while maintaining the minimum number of thread breaks between the empty bobbin and the 3-minute ball where the cup butt is formed, and between the 9-minute ball and the clean pipe.
  • the multi-stage speed change control of the spindle rotation by an inverter or the like is already known.
  • the range of variation of the spinning tension for each type of spinning exhibitor is set in advance. If the fluctuation range of the spinning tension exceeds the range of the upper limit tension TSU and the lower limit tension TSD, the ring rotation speed is speed-changed prior to the spindle speed change control so that the yarn does not break. Control to return to the spinning tension range.
  • the spindle rotation adjustment control is performed as subordinate replenishment control.
  • FIG. 3 which illustrates the standard spinning program
  • the spindle speed N S at the start is usually 10,000 or more.
  • the SC curve is set, and the required time P1 for the first period N1 of the rising acceleration when NS reaches the set speed S1 from swZon depends on the machine load applied to the main power. Usually about 5 to 10 seconds.
  • the ring rotation speed NR in this section is set to 0, and the link rotation control diagram RC shows that the spindle speed NS has reached the set acceleration of 10,000 to 12, OOOr. Pm. Start with a time difference P1 of seconds.
  • step 1st speed SS (corresponding to the target maximum speed S hxl / 2) Up to around 15,000 rpm within 20 to 30 seconds by swZ on Set the period to P2, and continue from step 3 at 60% (18, OOOr. Pm) of S h to 60% of S h within 60 seconds from swZ on at 0 step.
  • step 1 ⁇ and maintain the speed S 4 while maintaining the initial yarn end of the pipe thread with a minimum ball diameter of 0.5 minutes or more.
  • the ring rotation speed control program curve RC up to this time indicates that the ring rotation speed NR corresponds to the spindle rotation speeds N 2 and N 3. 40% to 50% K 1, ⁇ 2, ⁇ 4 follows 50% to 60% ⁇ 3 acceleration gradient, and the spindle rotation first step S i 50% to Set the ring rotation speed R1 so that it becomes 10,000 to 12, OOOr. P. m., Which is 60%.
  • the spinning speed limit is different depending on the yarn type, the judge, the machine conditions, etc., but the SC yarn from 0.1 PB (1 minute ball) to 0.2 FB (2 minute ball)
  • the highest speed of the SC curve 85% of S h (Fig. 6 S m is 25, OOOr.pm for S h 30,000 ⁇ pm)
  • the speed increases gradually from 0.4 FB to 0.5 FB (4th to 5th minute), reaching the maximum spinning speed Sh 30, OOOr.
  • Pm SC of N 6 Set the curve.
  • the ring rotation control curve R C in this section is N5, K4, and K4! ⁇ 2, N6, K3 and SC respectively 60% and 50% follow the SC curve, and maintain the spindle relative speed within the range where thread breakage does not occur, and also for stretching and bobbin winding.
  • the spinning stabilizes after the tube yarn forms the 45th to 5th minute ball. 5.
  • the RC curve maintains the highest R3 until around the 5th minute ball, then spinning stabilizes, and the yarn ⁇ " In the middle ball section from 0.85 PB to 0.9 PB, which is rarely generated, the ring RC curve is 40 to 50% of the maximum Sh of the SC curve.
  • R4 to reduce the ring rotation torque to make it easier for the ring rotation to shift between uses according to the fluctuation of the traveler torque, and to measure the stability of the spinning tension and to make the SC curve in the spinning program.
  • the ring control curve RC is the SC curve at the 5th speed SS, 40% to 30% of that SS up to R6 below 6,000 rpm.
  • the time required for the ring to completely stop is shortened immediately, so that the HR curve is shortened immediately, ie, S-0, earlier than the spindle stop, or at the same time, the R-0 ring rotation is stopped. Control settings. In other words, after the DFB motor is fully loaded, the time from the DFF to S-0.
  • Spindle stop HS is determined by the load such as the total weight of the number of machine spindle weights and the yarn weight, and the presence or absence or type of machine brake device. The spindle speed and torque when power supply to the machine main motor is stopped, that is, at the start of spindle inertia rotation, also differ.
  • Time HR is at the same time as HS at Max, Or shorter (HR ⁇ HS). If HS is set to 10 seconds, HR is set and controlled to 9 to 5 seconds.
  • FIG. 4 is a flowchart showing an example of the operation of the comparison means 56 and the control drive circuit 55.
  • step # 11 the difference between the ring rotation speed Rr and the target rotation speed Rj is determined in step # 11.
  • step # 12 If the rotation speed Rr of the ring rotating body is larger than the target rotation speed Rj, in step # 12, the difference between the rotation speed Rr and the target rotation speed Rj is multiplied by gain ", and the The current to the electromagnet 14 is controlled so as to generate the increased amount F of the braking force.
  • step # 13 the current to the electromagnet 14 is variably controlled so as to reduce the braking force by the electromagnet 14.
  • the split ball ratio becomes "1"
  • a speed 0 command is given to the spindle drive motor 51, or the supply of power is stopped, and the braking drive circuit is turned off.
  • the current flowing through the electromagnet 14 is controlled by 55, for example, the direction of the current is reversed, the permanent magnet 12 and the electromagnet 14 are attracted, the braking force of the bearing mechanism G is rapidly increased, and the spindle 53 stops rotating. Control is performed so that the ring rotating body 1 stops rotating earlier or at least simultaneously with the rain.
  • the spindle 53 and the ring rotating body 1 are controlled so that the rotation speed conforms to the spinning program shown in Fig. 3.
  • the occurrence of a snare due to the conventional unwinding phenomenon is prevented, and the spinning tension control function during high-speed spinning can be maintained.
  • centripetal force is exerted by the tapered surfaces 11a to 14a having an inclination angle with respect to the axis, and the ring rotating body 1 performs stable rotation without causing runout or horizontal waving rotation.
  • the spun yarn can be spun at high speed and in a short time without causing yarn breakage.
  • the spinning program instead of setting the spinning program in accordance with the split ball ratio based on the stretch length, the spinning program may be set in advance according to a known time.
  • the storage of the spinning program in the program storage means 58 may be loaded from an appropriate external storage device, or may be input from a keyboard, digital switch, or the like.
  • the circuit configuration of the control device H various types other than those described above can be adopted.
  • the two permanent magnets 11 and 12 may be integrally formed. Also, this may be configured integrally with the ring rotating body 1.
  • the lower one of the magnets on the holder 7 side is the electromagnet 14
  • the upper permanent magnet 13 may be an electromagnet, or both may be electromagnets. All of these magnetic poles are configured so that the N poles oppose each other. However, the magnetic poles may be configured so that the S poles oppose each other or have different magnetic poles between the upper part and the lower part.
  • FIG. 5 is an axial sectional view showing a spinning rotary ring device B according to another embodiment. In FIG. 5, portions having the same functions as those of the rotary ring A shown in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.
  • a flange rotor 2 and a lower rotor 3 are connected by screws 2, and are fixed by a nut 31 having a tool engaging groove 31a via a disc spring 31b.
  • a notch 18 a is provided at the lower end of the lower opening 3, and the sensor 17 detects the notch 18 a and generates a signal of the rotation speed.
  • a yoke case 34 is attached to the holder 7, and waveguides 35, 35... Are fitted into the yoke case 34 at a number of holes provided at equal intervals in the circumferential direction.
  • the wound cylindrical or fan-shaped electromagnets 32 and 33 are fitted, and the lead wires of these electromagnets 32 and 33 are drawn out.
  • 10 is a sliding cover
  • 36 is a bottom plate
  • 37 is an end ring
  • 38 is a retaining ring
  • 39 is a spring for fixing the ring.
  • the magnetic force of the electromagnets 32> 33 can be extremely increased, the operation of the bearing mechanism G is stabilized, and the braking effect by controlling the current flowing through the electromagnets 32 and 33 is achieved. Becomes larger.
  • the permanent magnets 11, 12, 13. and the electromagnets 14, 32, 33 are configured to have a tapered surface, but may be configured not to have a tapered surface.
  • the permanent magnet 41 bonded to the ring rotating body 1 is an annular plate having a rectangular cross section, and the permanent magnet 41 is attached to the holder 7.
  • the permanent magnets 42 and 43 and the electromagnet 44 may be arranged in a U-shaped cross section surrounding a part of each of the upper side and lower side of the permanent magnet 41 and the side between them.
  • FIG. 7 is a cross-sectional view showing a rotary ring device D according to another embodiment.
  • the rotating ring D is composed of a rotor 73 composed of a permanent magnet that is rotatably supported on the holder 7 by a bearing 72 by a bearing 72 and that is provided substantially at the center of the outer peripheral surface of the ring rotating body 1 in the axial direction.
  • a motor 71 comprising an armature 74 provided substantially at the center of the inner circumferential surface of the holder 7 in the axial direction and provided at a position opposed to the outer circumferential side of the rotor 73 is incorporated.
  • the motor 71 can change the rotation speed of the ring rotating body 1 by directly rotating the ring rotating body 1 and adjusting the frequency and magnitude of the current supplied to the motor 71.
  • Reference numeral 18b denotes a black-and-white detection plate for detecting the rotation speed by the reflection type sensor 117
  • reference numeral 76 denotes a holding nut
  • reference numeral 77 denotes a spacer
  • reference numeral 78 denotes a stop ring.
  • the rotation speed Nt of the traveler 21 can be calculated and detected. Based on the detected value, it is possible to control so that the rotation speed Rr of the ring rotating body 1 does not exceed the rotation speed of the traveler 121. However Since the difference between the spindle rotation speed R s and the trapper rotation speed N t is not large, the maximum rotation speed of the ring rotation speed R r can be roughly controlled to Rs x 0.9 ⁇ Rr. .
  • the above control may be performed by fuzzy control.
  • the spinning speed based on the spinning diagram based on the spinning diagram optimal for the type of the spun yarn and the examiner, and the rotation speed of the ring rotating body are controlled so as to follow the spinning speed to obtain the optimum ratio. Since the machine reaches the maximum rotation speed in the shortest time and the machine can be stopped in the shortest time even when the machine stops, it is possible to set a spinning program that can maximize the highest speed spinning time.
  • the ring rotating body has the same speed as the traveler. It is possible to prevent an overrun when the ring is stopped.
  • the spinning speed and the rotation speed of the ring rotating body are controlled so as to obtain the optimum ratio following the spindle rotation based on the spinning diagram optimal for the type of the spun yarn and the judge,
  • the maximum machine speed can be reached, and when stopping, the machine can be stopped in the shortest time, so that it is possible to set a spinning program that can maximize the highest speed spinning time.
  • the ring rotating body is the traveler ⁇ The same speed ⁇ Overrun when the ring is stopped Throat can be prevented.
  • the method and apparatus of the present invention are used in a spinning machine, it is possible to prevent the occurrence of a snare due to the unwinding phenomenon and to maintain the spinning tension control action, so that the yarn is not cut at high speed. Spinning can be performed at a high speed, and the productivity of the spinning machine can be greatly improved.
  • the method and apparatus of the present invention can be used not only for spinning machines but also for all textile machines having a twisting mechanism using a ring and a spindle, such as a twisting machine, a twisting machine, and a twisting machine for producing cover yarn. ,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Procédé et appareil de commande de l'action de retordage d'une unité de filage/retordage annulaire rotative comportant un élément (1) rotatif annulaire monté rotatif sur un support (7) par l'intermédiaire d'un mécanisme (G) de support. Le procédé consiste à détecter la vitesse de rotation de chaque élément (1) rotatif et d'un fuseau, puis à comparer les vitesses détectées les unes par rapport aux autres, afin de commander la vitesse de rotation de l'élément rotatif de sorte que le rapport de la vitesse de rotation dudit élément rotatif par rapport à celle du fuseau se situe à l'intérieur d'une plage pré-établie à l'aide de moyens (17, 54, 55, 56, 57, 58, 59, 60) de commande de vitesse de rotation. On peut utiliser, par exemple, un support (G) magnétique contenant au moins un électro-aimant (14) afin de commander la force de torsion dudit élément (1) rotatif autour du support (G) magnétique, par la commande d'un courant passant dans ledit électro-aimant (14).
PCT/JP1990/000998 1989-08-03 1990-08-03 Procede et appareil de commande d'une unite annulaire rotative de metier a filer ou analogue WO1991002112A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20212989 1989-08-03
JP1/202129 1989-08-03

Publications (1)

Publication Number Publication Date
WO1991002112A1 true WO1991002112A1 (fr) 1991-02-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000998 WO1991002112A1 (fr) 1989-08-03 1990-08-03 Procede et appareil de commande d'une unite annulaire rotative de metier a filer ou analogue

Country Status (2)

Country Link
EP (1) EP0436743A4 (fr)
WO (1) WO1991002112A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1093712C (zh) * 1994-08-31 2002-10-30 索尼公司 近即时视频信号接收机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2799886B2 (ja) * 1989-09-11 1998-09-21 株式会社セコー技研 インダクタンス負荷の通電制御装置
IT201900019752A1 (it) * 2019-10-24 2021-04-24 Cogne Macch Tessili S P A Metodo di controllo di un filatoio per ottenere una messa a punto automatica di tale filatoio
CH719551A1 (de) * 2022-03-28 2023-10-13 Rieter Ag Maschf Spinnstelle für eine Ringspinnmaschine sowie Verfahren zum Betreiben einer Spinnstelle für eine Ringspinnmaschine.

Citations (2)

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Publication number Priority date Publication date Assignee Title
JPS61152835A (ja) * 1984-12-21 1986-07-11 Kanai Hiroyuki 回転リング
JPH01168923A (ja) * 1987-12-22 1989-07-04 Nippon Mengiyou Gijutsu Keizai Kenkyusho 回転リングを備えた精紡機の運転制御方法

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Publication number Priority date Publication date Assignee Title
JPH0686688B2 (ja) * 1988-09-05 1994-11-02 博史 山口 紡績用回転リングの軸承装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61152835A (ja) * 1984-12-21 1986-07-11 Kanai Hiroyuki 回転リング
JPH01168923A (ja) * 1987-12-22 1989-07-04 Nippon Mengiyou Gijutsu Keizai Kenkyusho 回転リングを備えた精紡機の運転制御方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0436743A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1093712C (zh) * 1994-08-31 2002-10-30 索尼公司 近即时视频信号接收机

Also Published As

Publication number Publication date
EP0436743A4 (en) 1992-01-22
EP0436743A1 (fr) 1991-07-17

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