US3455097A - Apparatus for spinning of fibrous material - Google Patents

Apparatus for spinning of fibrous material Download PDF

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Publication number
US3455097A
US3455097A US732675A US3455097DA US3455097A US 3455097 A US3455097 A US 3455097A US 732675 A US732675 A US 732675A US 3455097D A US3455097D A US 3455097DA US 3455097 A US3455097 A US 3455097A
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Prior art keywords
spinning
spinning chamber
housing
carding roller
roller
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US732675A
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English (en)
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Jaroslav Rajnoha
Ladislav Bures
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Vyzkumny Ustav Bavlnarsky AS
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Vyzkumny Ustav Bavlnarsky AS
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor

Definitions

  • a housing defines an internal cavity.
  • a first element is mounted in the cavity for rotation and includes a hollow rotatable shaft member.
  • a second element is also mounted in the cavity for rotation and includes a second shaft member which extends through the hollow first shaft member.
  • First and second drives are respectively associated with the first and second elements and drive the sec ond shaft member at a higher rotatioinal speed and in the same direction as the first shaft member.
  • Antifriction bearing means mounts the second shaft member in the first shaft member axially therewith for rotation relative theret0.
  • the present invention relates to apparatus for spinning of fibrous material in general, and more particularly for ringless spinning of textile fibers. Still more specifically, the invention relates to an apparatus for ringless spinning of textile fibers by means of underpressure rotary spin ning chambers.
  • Apparatus wherein an underpressure rotary spinning chamber is mounted in the body of a spinning unit, with a carding roller being provided for separating the fibrous material which is to be spun, the apparatus having a cover closing an open side of the spinning chamber and the carding roller being provided in this cover.
  • the spinning chamber which has an interior collecting surface on which fibers are deposited subsequent to carding and separation by the carding roller, and on which under the influence of rotation of the spinning chamber these fibers are twisted into a yarn which is then withdrawn from the spinning chamber, is driven by a belt and the carding roller is mounted on a drive shaft for rotation about an axis which extends at right angles to the axis of the spinning chamber.
  • both the spinning chamber and the carding roller are mounted for rotation about axes passing through both of these components and the carding roller projects partly into the Open side of the spinning chamber.
  • both the spinning chamber and the carding roller rotate about a common axis but each of them is mounted on a shaft facing away from the respectively opposite component.
  • An additional object of the invention is to provide a highly advantageous apparatus of the type under discussion which is reliable and simple in its construction, and which has an improved operational capability and longer service life.
  • a further object of the invention is to provide such an apparatus wherein the entire device is constructed in compact manner and can be readily serviced or cleaned.
  • An additional object of the invention is to provide such an apparatus wherein it is possible to attain a higher rotational speed of the spinning chamber with the same bearings which have been used heretofore, that is to attain a higher rotational speed than was heretofore possible with these bearings.
  • housing means a first element mounted in the housing means for rotation and including a hollow rotatable first shaft member, and a second element also mounted in the housing means for rotation and including a second shaft member which extends through the first shaft member.
  • First and second drive means are respectively associated with the first and second elements and are adapted for driving the second shaft member at a higher rotational speed than and in the same direction as the first shaft member.
  • Antifriction bearing means mounts the second shaft member in the first shaft member c0- axially therewith and for rotation relative thereto.
  • a further advantageous embodiment of the invention provides for having at least some of the air-escape channels of the rotary spinning chamber communicate With the interior of the carding roller which constitutes the aforementioned first element whereas the rotary spinning chamber constitutes the second element.
  • the spinning chamber is at least in part located in the interior of the carding roller.
  • the shaft of the spinning chamber is provided at its end with a small belt pulley and if the hollow shaft of the carding roller is similarly provided with a belt pulley.
  • another advantageous construction provides for constructing the end portions of the shaft of the spinning chamber as well as of the hollow shaft of the carding roller as rotors of high-frequency electric motors.
  • a partition means may be provided between the spinning chamber and the carding roller, and particularly effective doffing of fibers is attained if a discharge conduit in the housing communicates with a supply channel in a cover provided for the spinning chamber, especially if the connecting passage between the two tapers continuously, that is its cross-section decreases continuously in the direction towards the supply channel which in turn communicates with the spinning chamber whereas the space in the housing is supplied with dotted fibers from the carding roller.
  • the construction to be outlined herein may be in form of a so-called mono-block wherein the carding rollers, the spinning chamber, the feed roller for sliver and a stop-motion device for checking yarn breakage are disposed in a single housing which is pivotable about an axis.
  • this housing may be swingably mounted on a pin in a hinge and its working position will be secured by a lever mounted on a holder having a detent.
  • both the hinge and the holder with the housing of the unit are mounted on resilient blocks on the frame of the spinning machine.
  • Another advantageous embodiment provides for letting the housing swing from its working position into a rest position under its own weight, and for providing a breaking pad or breaking pads which in the rest position are engaged by the pulleys associated with the respective shafts of the spinning chamber and the carding roller for breaking rotation of the same.
  • the breaking pad may be provided on a resilient stirrup, or if there are two or more such breaking pads they also may be arranged on a common resilient stirrup or each on a separate resilient stirrup, or one which is spring biased.
  • a further embodiment of the invention simplifies the sliver feed mechanism on the one hand and secures immediate stopping of the supply of fibrous material in response to the occurence of a break in the yarn.
  • the feed roller is mounted for free rotation on a shaft, driven from a worm shaft via a toothed gear, and brought into driving engagement by means of claws provided on a clutch plate and a spur-gear clutch disk which is fast on a shaft and provided with a pin engaging a recess in the feed roller.
  • the clutch plate is urged into driving engagement by a spring and out of such engagement by an electromagnetic device.
  • a further embodiment of the invention provides a simplification of the cover of the spinning chamber and assures ready access to the interior of the spinning chamber for servicing and/ or removal of contaminants or dirt therefrom.
  • the body or housing of the spinning unit or device has an opening communicating with the interior cavity of the housing and is provided with a fixed cover having a cylindrical projection extending into the interior of the spinning chamber, the cover being in turn provided with an aperture extending through the cylindrical projection and with a removable closure for this aperture.
  • This removable closure may be provided eccentrically with respect to the axis of rotation of both the spinning chamber and the carding roller and the supply channel connecting the carding roller with the interior of the spinning chamber may then pass through the cover and the cylindrical propection into the interior of the spinning chamber to one side of the removable closure, the yarn outlet passage from the spinning chamber being disposed in the removable closure coaxially with the spinning chamber.
  • FIG. 1 is an axial section through a device representing one embodiment of the invention
  • FIG. 2 is an operate View taken on the section line IIII of FIG. 1;
  • FIG. 3 is a perspective view of the device illustrated in FIG. 1 with parts being broken away for aifording a better view;
  • FIG. 4 illustrates in axial section the mounting of the spinning chamber and the carding roller in an embodiment where both are disposed coaxially in end-to-end relationship.
  • FIG. 5' is also an axial section, illustrating another way of mounting the spinning chamber and the carding roller with the former being arranged in a recess of the latter;
  • FIG. 6 illustrates, in a manner analogous to FIG. 5, a mounting of the spinning chamber within a cavity of the carding roller but with the respective shafts of the two being constructed as rotors of high-frequency motors;
  • FIG. 7 is a view similar to FIG. 2 but illustrating another embodiment of the cover provided with a removable closure arranged eccentrically;
  • FIG. 8 is a partial axial section through an arrangement of the closure of the spinning chamber in the cover of the latter;
  • FIG. 9 illustrates, in partial section, another embodi ment of the arrangement of the removable closure for the spinning chamber
  • FIG. 10 is an over-all view, partly in section, of a further embodiment according to the present invention.
  • FIG. 11 is a section taken on the line XI-XI of FIG. 10, showing the feeding oif sliver via the carding roller, parts having been omitted for the sake of clarity and some details having been shown in partial sections;
  • FIG. 12. is a view taken in the direction of the arrow A in FIG. 11;
  • FIG. 13 shows an exemplary arrangement of a machine utilizing devices according to the embodiment of FIG. 10 with the right-hand side of the machine being only incompletely shown because it is identical to the left-hand side thereof;
  • FIG. 14 is a section taken on the line XIV-XIV of FIG. 13;
  • FIG. 15 is a sectional view illustrating a further embodiment of the invention.
  • FIG. 16 illustrates an additional embodiment of the invention in somewhat diagrammatic view
  • FIG. 17 illustrates an embodiment analogous to but different from the one shown in FIG. 10.
  • FIG. 18 illustrates in somewhat diagrammatic view a further embodiment of the invention.
  • a spinning chamber 1 which is known per se.
  • Such spinning chambers are of the rotatable type, having a cavity formed by two conical surfaces and provided with air-escape channels 2.
  • the spinning chamber 1 is rigid with a shaft 3 which is mounted rotatably by means of anti-friction bearings 4, as for instance illustrated in FIG. 4, within a hollow shaft 5.
  • a carding roller 6 is rigid with the hollow shaft 5 so to be coaxially arranged for slight axial spacing from the spinning chamber 1.
  • the hollow shaft 5 in turn is mounted via additional antifriction bearings 4' in a sleeve member 7 (compare FIG. 4) which is fixedly secured in the housing 8 of a spinning unit.
  • spinning unit indicates a device for processing of textile material, that is for the processing of such material from a feeding mechanism to the winding mechanism for the finished yarn.
  • Such spinning units are arranged under lateral sides of a spinning machine in sideby-side relationship and although there is a very great number of such spinning units on each machine, they are all identical so that the detailed description of a single one will suffice.
  • This construction makes it possible to increase the rotational speed of the spinning chamber 1 by the rotational speed of the carding roller 6, if the latter rotates in the same sequence as the spinning chamber 1, but without increasing the load on the bearings.
  • the spinning chamber may be rotatated at a higher speed than the maximum permissible speed dictated by the bearings, but that yet the bearings will not be adversely affected. If, for example, the rotational speed of the spinning chamber is 30,000 r.p.m. which in effect is the permissible limit for known bearings available at an economically feasible price, the service life of bearings at this rotational speed is roughly 12,000 working hours.
  • the spinning chamber in effect attains 40,000 r.p.m. in accordance with the present invention whereas the bearings for the shaft of the spinning chamber are stressed only at 30,000 r.p.m., that is their permissible limit. Of course, this is not only beneficial to the bearings but also increases yarn output.
  • the carding roller 6 is provided on its cylindrical circumferential surface with teeth or projections 6' and, in the embodiments illustrated in FIGS. 4, 5, 6 and 10, it has an axial recess forming an inner space 11.
  • a plurality of airescape channels 2 are provided to improve the operation of the carding roller 6 and these discharge into the inner space 11 from which air is evacuated through discharge channel 12 which opens at the circumferential surface provided with the teeth or projections.
  • FIG. 5 we have illustrated an embodiment wherein the spinning chamber 1 is shown mounted in the carding roller which is here identified with reference numeral 6a, and it will be seen that the spinning chamber is located directly in the inner space 110 to the carding roller 6a,
  • the air-escape channels 2 of the spinning chamber 1 in this embodiment discharge into an annular recess 111 in the inner space 11a from where the air is evacuated through the discharge channels 12a to the outer peripheral surface of the carding roller 6a and from there into a connecting channel which will still be described.
  • the spinning chamber 1 and the carding roller 6 are both driven via the respectively associated pulleys 9 and 10 by suitable drive belts which are not shown because they are known per se.
  • the drive belts and belt pulleys are eliminated because the drive of the spinning chamber 1 and the carding roller 6 is effected via highfrequency motors 13 and 14 with the respective shafts of the spinning chamber and the carding roller being constructed as rotors of these high-frequency motors.
  • the antifriction bearings illustrated in the embodiments of FIGS. 4, 5 and 6 for mounting the spinning chamber in the carding roller 6 may be so-called double-sleeve bearings, but conventional bearings may also be utilized as shown in FIGS. 1 and 2.
  • the spinning chamber 1 is fixed with the shaft 3 which is rotatably mounted in the bearings 4, the latter being disposed in the hollow shaft 5 of the carding roller 6 which shaft 5 is in turn rotatably mounted via the bearings 4' in the housing 8 of the spinning unit.
  • the housing 8 is attached to a frame 15 of a spinning machine and can assume either a vertical or a horizontal position.
  • Feed rollers 16 and an opening 8' for feeding a sliver 17 of fibrous materials are provided in the housing 8 oppositely to the peripheral surface of the carding roller 6.
  • the feed rollers 16 are driven by a drive wheel 18 and a chain 19 which are illustrated only diagrammatically. In the embodiments according to FIGS. 10 and 17 the drive is different, as will still be described.
  • the housing 8 of the spinning unit surrounds both the spinning chamber 1 and the carding roller 6 and has an open side at the front or outlet side of the spinning chamber 1 which is closed by a cover 20.
  • this cover 20 there is provided a removable closure 21 having an outlet channel 28 for the withdrawal of yarn 23 spun in the spinning chamber 1, and a supply channel 22 which communicates with the carding roller 6 for feeding fibers from the latter into the spinning chamber 1 and onto the inner collecting surface of the latter which is located at the point of greatest inner circumference of the spinning chamber cavity.
  • the cover 20 is provided with a cylindrical projection 24 extending into the cavity of the spinning chamber 1.
  • the supply channel 22 discharges onto a cylindrical surface 25 of the cylindrical projection 24 and, as will be seen, the supply channel 22 tapers towards its outlet and communicates with a similarly tapering connecting channel 26 located exteriorly of the housing 8 and connecting the supply channel 22 with a discharge space 27 of the housing 8 in the vicinity of the carding roller 6.
  • the latter hurls the separated fibers by centrifugal force and under the influence of an air stream produced by the rotation of the carding roller and by the ventilating effect of the air-escape channels 2, into the discharge space 27.
  • a removable closure 21 is provided in the cover 20 which serves for obtaining access to the interior of the spinning chamber 1 to permit servicing and/ or cleaning of the latter.
  • the diameter of the removable closure 21 is determined by the dimensions of the cylindrical projection 24 as Well as by the configuration of the supply channel 22 so as not to interfere with the latter.
  • the supply channel 2 discharges, as already pointed out, onto the cylindrical surface 25 of the projection 24 as best shown in FIG. 2.
  • the removable closure 21 may be eccentrically arranged in the projection 24 in the manner shown in FIG. 7.
  • the yarn delivery channel 28 is, however, always disposed on the rotational axis of the spinning chamber 1.
  • the removable closure 21 may be attached to the cover via various arresting means, for example by means of a ball 29 and a spring 30 which, as shown in FIG. 8, provide a snub-action arresting means.
  • the removable closure 21 may also be so constructed that it is itself constituted by the cylindrical projection 24 which comprises the delivery channel 28 for the yarn 23, a portion of the supply channel 22 and the arresting means 29, 30. The latter construction is particularly advantageous because it increases the size of the opening which provides access to the cavity of the spinning chamber 1, thus enabling better servicing and/or cleaning of the supply channel 22 as well.
  • the housing 8 of the spinning unit is also provided with an outlet channel 31 for air evacuation.
  • This channel 31 is, however, optional and the air may instead circulate via the spinning chamber 1, the carding roller 6, the connecting channel 26, the supply channel 22 and back to the spinning chamber 1.
  • Withdrawing rollers 32 Arranged above the spinning unit are positively driven Withdrawing rollers 32 for withdrawing the yarn 23 from the spinning chamber 1.
  • a well known traverse roller 33 is provided for cross-winding the yarn 23 onto a bobbin 34 and for providing frictional driving of the latter.
  • Drive means for the rollers 32 and 33 has not been illustrated because this is conventional and would only render the illustration confusing.
  • FIGS. -13 we have illustrated another embodiment of the invention.
  • a frame of a textile machine carries the housings 8 of the various spinning units.
  • Each of the housings 8 is mounted on the frame 15 in swingable manner via a hinge eye 35 and a hinge 36, connected by the aid of a pin 37.
  • the hinge 36 is attached to the frame 15 of the machine via a resilient block 38 which serves to absorb vibrations of the housing 8, and the lower portion of the housing 8 is provided with a recess 39 with the aid of which the housing 8 is normally pulled to its Working position, illustrated in FIG. 10, by means of a lever 40 which is pivotable on a pin 41 of a holder 42 which in turn is secured to the frame 15 of the machine by the intermediary of a resilient block 38.
  • the lever 40 is normally urged into engagement with the recess 39 by a spring 43.
  • the housing 8 of each unit contains all components necessary for the spinning operation and constitutes therewith a compact assembly.
  • the carding roller 6 is arranged in the manner described earlier and in this embodiment is driven via the belt pulley 10 from a drive belt 45.
  • the spinning chamber 1 is also diven via its belt pulley 9 by a drive belt 451.
  • a cover closes the housing 8 at the front end of the spinning chamber and is provided with a removable closure 21 affording access to the cavity or interior of the spinning chamber 1.
  • a stopmotion device 46 is provided which, via nonillustrated contacts and a similarly nonillustrated electric circuit,
  • the stop-motion device 46 actuates an electromagnetic device 48 for the purpose of interrupting the drive of a feed roller 49.
  • the electromagnetic device 48 is arranged in the cover 20 and serves to control the feed roller 49 which is located partly in the cover 20 and partly in the housing 8 of the spinning unit and is driven from a worm shaft 50 via a toothed wheel or gear 51. It will be appreciated that the drive of the feed roller 49 may be carried out in various ditferent ways, for example via a central chain as shown in FIG. -1, or in any other well known manner.
  • the wheel 51 is rigid with a shaft 52 which supports the feed roller 49 for free rotation relative to the shaft 52.
  • the feed roller 49 is provided with a recess 53.
  • a clutch disk is secured on the shaft 53 and provided with axially extending claws 541.
  • a clutch plate 55 is mounted for free rotation on the shaft 52 and provided with claws 551 which are adapted to engage with the claws 541 of the clutch disk 54.
  • the clutch plate is provided with an axially extending pin 56 which continuously engages in the recess 53 of the feed roller 49.
  • the clutch plate 55 is urged into engagement with the disk 54 by a spring 57, and an electromagnet 48 is provided for moving it out of engagement so that it is moveable between an engaged and a disengaged position.
  • a swingable condensing trumpet 58 for feeding a sliver 59 is arranged closely adjacent to the feed roller 49.
  • the latter in turn is adjacent to the carding roller 6 which serves to separate the fibers of the sliver and conveys them into the discharge space 27 from where they enter the connecting channel 26 opening into the supply channel 22 which latter opens onto the cylindrical surface 25 of the projection 24 extending into the cavity of spinning chamber 1.
  • the channel 26 is similar to the one shown in FIG. 1 except that in the present embodiment it is provided directly in the housing 8, as seen in FIG. 11.
  • a cleaning opening 60 is provided adjacent the feed roller in the housing 8, as shown in FIGS. 11 and 12, and this serves for cleaning of the carding roller 6 in case the latter becomes clogged, as well as to enable the aspiration of additional air towards the feed roller 49 so as to facilitate the separation and the transport of fibers from the carding roller 6.
  • An adjustable cover 61 is provided which serves to close the opening 60 and which has a groove 62 for regulating the amount of air passing therethrough, an attachment screw 63 being provided for securing purposes.
  • the housing 8 of the spinning unit containing all components for carrying out the spinning operation, is swingably mounted on the hinge pin 37 and may assume two extreme positions. One of these is the working position in which the belt pulley 10 and the pulley 9 are in contact with the drive belts 45, 451 respectively and are driven by the same. In the rest position the housing 8 is tilted in such a manner as to disengage both the pulley 9 and the pulley 10 from their respective drive belts as shown in broken lines in FIG. 10. As the housing 8 is turned or tilted to this rest position, the toothed wheel 51 is disengaged from the worm shaft 50 and the pulleys 10 and 9 move into engagement with the braking paths 64 which are disposed on a joint resilient stirrup 65.
  • FIGS. 15 and 16 Further embodiments are shown in FIGS. 15 and 16 where the braking paths 64 are mounted for separate adjustment on individual resilient stirrups 65. This independent mounting is advantageous because it makes it possible for each of the braking paths 64 to adjust itself more closely to the respectively associated belt pulley 9 and 10.
  • the monoblock arrangement of the spinning units provides for a relatively simple construction and makes it possible to exchange any incorrectly operating spinning unit while the machine is in operation, as is clearly evident from FIGS. 13 and 14.
  • the drive of all spinning units is effected by the centrally located drive belt 45, 451 which extend the entire length of the machine and which are disposed in the illustrated embodiment on a stepped pulley 66 driven by a motor 67.
  • Supply means, for instance sliver laps 69 are arranged on swing levers 68 in the lower portion of the machine, and in the upper part the traverse rollers 33 and the receiving bobbins 34, the latter supported on swing arms 17, are shown.
  • the individual spinning units each consisting of a housing 8 and the associated components outlined above, may be positioned in the machine vertically or horizontally with respect to an imaginary axis passing through both the spinning chamber and the carding roller associated with the respective unit.
  • the hinge pivot 37 need not necessarily be disposed in the upper part of the respective spinning unit, as in the exemplary embodiment shown in FIG. 10, but may instead be arranged at the lower part of the housing of the individual spinning unit in the manner shown in FIG. 17.
  • the feed roller for feeding the sliver may also be disposed in the lower part of the housing 8. It is necessary, however, that all components be located within the housing 8 of the respective spinning unit and that this housing 8 be pivotable about a pivot axis.
  • the cover 20' which closes the spinning chamber is fixedly secured by means of screws but it will be appreciated that this securing may also be effected by sliding or turning, for instance via a bayonet-type closure. Alternately, the cover 20 may be swingably secured on the housing 8 and held in place by means of a lever and a detent or recess.
  • FIG. 18 we have illustrated how the spinning chamber and a carding roller 6 may be arranged coaxially with axial spacing, similar to the arrangement in FIG. 4, except that in FIG. 18 a partition means 71 is provided between the spinning chamber 1 and the carding roller 6.
  • This embodiment does not have a closed air circulation and the partition 71 serves to prevent air from streaming between the spinning chamber and the carding roller. This improves the performance of the device because it improves the air flow conditions.
  • the apparatus according to the present invention will operate as follows:
  • the spinning machine utilizing the apparatus is started by means of for instance a pushbutton provided on a control panel 72, as shown in FIG. 13.
  • the belts 45, 451 are driven by the motor 67 and in turn drive the spinning chamber 1 and the carding roller 6.
  • the worm shaft 50 which is common to all of the spinning apparatuses or units, and the co-operating toothed wheels 51 actuate the individual feed rollers 49.
  • the yarn withdrawing mechanism that is the traverse rollers 33, the withdrawing rollers 32 and the bobbins 34, are put into operation.
  • the stop-motion device 36 for checking yarn breaks is put into operational readiness when the machine is started.
  • the pulleys 9 When each spinning unit is in operational condition, as shown in FIG. 10, the pulleys 9 and are in contact with the respective drive belts 45, 451.
  • Feed roller 49 is driven, as pointed out before, via the worm shaft 50 and the associated toothed wheel 51.
  • the spring 57 pushes the clutch plate 55 to the right so that its claws 551 mesh with the claws 541 of the clutch disk 54 which is rigid with the shaft 52.
  • the clutch plate 55 is also provided with the pin 56 which projects into the recess 53 of the feed roller 49, rotary movement is transmitted from the shaft 52 via the plate 55, the pin 56, the disk 54 to the feed roller 49 which is mounted for free rotation relative to the shaft 52.
  • the condensing trumpet 58 abuts resiliently against feed roller 49, as shown in FIG. 11, and the sliver 59 of the textile fibers is introduced into this trumpet 58 from the sliver lap 69 shown in FIG. 13.
  • the feed roller 49 feeds sliver to the carding roller 6 which separates or combs-out the fibers from the sliver. Underpressure is generated in the interior of the spinning chamber 1 due to the rotation thereof and this results in the flow of air from the carding roller 6 through the channel 26 into the spinning chamber 1 and back to the carding roller 6.
  • the air from the spinning chamber 1 goes into the outlet channel 31 and the fibers are doffed from the surface of the carding roller 6 by centrifugal force and by the aforementioned air stream and conveyed through the connecting channel 26 and the supply channel 22 into the spinning chamber 1 where they deposit themselves on the aforementioned collecting surface.
  • the yarn 23 which is being withdrawn is checked for continuity by the stop-motion device 46 which, if a break in the yarn 23 occurs, indicates this by lighting or otherwise shorting the signal device 47, for instance a lamp, and also energizes the electromagnetic device 48 which attracts the clutch plate 55 against the biasing action of the spring 57. Displacement of clutch plate 55 to the left, towards the electromagnetic device 48, results in disengagement of the clutch plate claws 551 from the clutch disk claws 541. This interrupts transmission of motion to the feed roller 49.
  • the pin 56 is, however, made sufficiently long so that it will not be withdrawn from the recess 53 of the feed roller 49 whereby the latter is brought to a stop simultaneously with the clutch plate 55 because of the projecting pin 56.
  • the supply of sliver 59 is also stopped to avoid clogging of the spinning chamber 1 while the break in the yarn is removed by the machine operator.
  • the stop-motion device 49 has not been described in detail because it may be of conventional type and is Well known. Removal of yarn breakage is effected manually by introducing the trailing end of a yarn 23 into the delivery channel 28. In the event that a significant amount of contaminants or dirt has accumulated in the spinning chamber 1, which would be capable of causing yarn breakage, it is merely necessary to remove the closure 21 so as to gain access to the spinning chamber 1 for cleaning purposes.
  • the stop-motion device 46 is neutralized, that is it is placed into operative position where it will serve to detect yarn breaks, and this de-activates electromagnetic device 48 so that the clutch plate 55 is now displaced to the right under the action of the spring 57.
  • the claws 551 mesh with the claws 541 and the feed roller 49 is again driven whereby the supply of fibers to the spinning chamber 1 is resumed.
  • an apparatus for ringless spinning of fibrous material the combination of a housing defining an internal cavity; carding roller means for carding fibrous material and being mounted for rotation in said cavity and including a driven hollow first shaft member; spinning chamber means for spinning fibrous material carded by said carding roller means and being mounted for rotation in said cavity and having a driven second shaft member extending through said hollow first shaft member; and antifriction bearing means mounting said second shaft member in said hollow first shaft member for rotation relative thereto.
  • said carding roller means comprising a carding roller having an outer peripheral surface and being formed with an inner space and channels connecting said inner space with said outer peripheral surface, said spinning chamber means comprising fluid-discharge conduits at least some of which discharge into said inner space of said carding roller.
  • said spinning chamber means comprises a spinning chamber at least partly located in said inner space for rotation relative to said carding roller.
  • said inner space being bounded by a wall formed with an annular recess communicating with said channels, and at least some of said conduits discharging into said annular recess.
  • drive means including an electromotor associated with each of said shaft members for driving the same, each of said electromotors having a stator and each of said shaft members being constructed and operative as a rotor cooperating with the stator of the respectively associated electromotor.
  • conduit means having a cross-sectional area which decreases in direction from said carding roller means towards said spinning chamber means.
  • said carding roller means comprising a carding roller and said spinning chamber means comprising a spinning chamber arranged with slight axial spacing from said carding roller; and further comprising partition means interposed in the space between said carding roller and said spinning chamber.
  • said detector means being arranged in said housing means; and said supply means comprising a feed roller also arranged in said housing means and a drive arrangement for said feed roller arranged outside said housing means; and pivot means mounting said housing means for pivoting movement between an operative position in which said drive arrangement is in driving engagement with said feed roller, and an inoperative position in which said drive means is out of driving engagement with said feed roller.
  • said housing means is mounted so as to have a permanent tendency to move to said inoperative position under the influence of gravity; further comprising a pair of drive belts each associated with one of said pulleys for transmitting motion thereto and thereby to the associated shaft member; and frictional braking means positioned so as to engage and efiect frictional braking of the respective drive belt in response to movement of said housing means to said inoperative position to thereby stop rotation of said shaft members.
  • said braking means comprises a pair of braking pads.
  • said feed roller comprising an axle and being mounted thereon for free rotation; and said drive arrangement comprising a driven Worm gear and a toothed wheel rigid with said axle and associated with said worm gear for driving said feed roller.
  • said drive arrangement further comprising a clutch disc mounted on and rigid with said axle, a clutch plate freely surrounding said axle juxtaposed with said clutch disc and being provided with a pin'said feed roller having an endface facing said pin and provided with a recess receiving said pin, and means for urging said clutch plate into motion-transmitting engagement with said clutch disc.
  • said housing means comprising a cover adapted to close said open end and including a cylindrical projection extending into said cavity and being provided with an aperture in said projection which communicates with said cavity when said projection is received in the latter, said cover including a removable closure for said aperture.
  • said removable closure being arranged eccentrically with ref erence to the axis of rotation of said spinning chamber and being provided with an outlet passage for yarn spun by said spinning chamber which outlet passage is aligned with said axis of rotation of said spinning chamber.
  • conduit means being 1n part provided in said cover and extending in said projection laterally of said removable closure.
  • Apparatus according to claim 1 further comprising drive means for driving said first shaft member at a first speed and said second shaft member at a higher second speed and in the same direction as said first shaft member, the speed of rotation of said second shaft member relative to said antifriction bearing means being reduced in response to rotation of said first shaft member in the same direction as said second shaft member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US732675A 1967-06-01 1968-05-28 Apparatus for spinning of fibrous material Expired - Lifetime US3455097A (en)

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CS398667 1967-06-01

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US (1) US3455097A (de)
CH (1) CH474579A (de)
DD (1) DD67058A (de)
DE (1) DE1710047C3 (de)
FR (1) FR1556017A (de)
GB (1) GB1209681A (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591952A (en) * 1968-08-10 1971-07-13 Vyzk Ustav Bavlnarsky Open end spinning apparatus
US3667205A (en) * 1969-03-07 1972-06-06 Ozdian Josef Mechanism for withdrawing and winding yarn in spinning units
US3685270A (en) * 1969-05-05 1972-08-22 Skf Kugellagerfabriken Gmbh System of spinning yarn
US3685272A (en) * 1969-07-08 1972-08-22 Tmm Research Ltd Textile spinning machines
US3724194A (en) * 1969-07-08 1973-04-03 Tmm Research Ltd Textile spinning machines
US3728853A (en) * 1970-07-23 1973-04-24 Rieter Ag Maschf Method and apparatus for interrupting the supply of fiber material to a spinning machine
US3756007A (en) * 1970-06-18 1973-09-04 Skf Gmbh Spinning device for producing a filament from a fiber strip
FR2187951A1 (de) * 1972-06-07 1974-01-18 Rieter Ag Maschf
US3800520A (en) * 1973-06-04 1974-04-02 Rieter Ag Maschf Fiber opening roll of an open end spinning device
US3828539A (en) * 1972-03-13 1974-08-13 Platt International Ltd Open-end textile spinning machines
US3841075A (en) * 1972-04-15 1974-10-15 Krupp Gmbh Opening-up drum for an open end spinning device
US3879926A (en) * 1972-08-05 1975-04-29 Skf Kugellagerfabriken Gmbh Method and apparatus for controlling the rejoining of thread in an open ended spinning machine
US3884028A (en) * 1972-06-28 1975-05-20 Fritz Stahlecker Apparatus for removing impurities from fibers
US3884027A (en) * 1972-01-07 1975-05-20 Schubert & Salzer Maschinen Cleaning access and braking mechanism for open end spinning machines
US3943690A (en) * 1973-09-21 1976-03-16 John Michael Noguera Yarn spinning apparatus
US3948031A (en) * 1973-07-02 1976-04-06 Instytut Wlokiennictwa Duct for feeding fibers to a pneumatic spinning chamber having a stationary whirl
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US5337552A (en) * 1991-06-28 1994-08-16 Rieter Ingolstadt Spinnereimaschinenbau Ag Open-end spinning machine frame structure
US5431006A (en) * 1992-06-29 1995-07-11 Rieter Ingolstadt Spinnereimaschinenbau Ag Open-end spinning machine
US5778654A (en) * 1995-11-30 1998-07-14 Fritz Stahlecker Adaptor for an open-end spinning device
US6311468B1 (en) * 1999-02-09 2001-11-06 Volkmann Gmbh & Co. Device for producing a twisted yarn by an integrated spinning and twisting process as well as fiber feed tube
CZ301241B6 (cs) * 2004-08-05 2009-12-16 Rieter Cz A. S. Zarízení k tesnení prostoru v dutém hrídeli sprádacího rotoru rotorového doprádacího stroje pro výrobu složkové príze

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1290527A (de) * 1969-07-08 1972-09-27
DE2018701A1 (de) * 1969-09-04 1971-03-11 VEB Spinnereimaschinenbau Karl Marx Stadt, χ 9000 Karl Marx Stadt Speisevorrichtung fur Offen End Spinnvorrichtungen
DE2123231B2 (de) * 1971-05-11 1977-01-13 Wilhelm Stahlecker Gmbh, 7341 Reichenbach Offenend-rotorspinnmaschine mit mehreren spinnstellen
DE2161619C3 (de) * 1971-12-11 1982-05-27 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinneinrichtung
DE2167308C3 (de) * 1971-12-11 1985-03-21 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinneinrichtung
CH554426A (de) * 1972-06-07 1974-09-30 Rieter Ag Maschf Offenend-spinnvorrichtung.
DE2261147C3 (de) * 1972-12-14 1984-05-24 Stahlecker, Fritz, 7347 Bad Überkingen Offenend-Spinnvorrichtung
DE2558758C2 (de) * 1975-12-24 1985-05-15 Teldix Gmbh, 6900 Heidelberg Offenend-Spinneinheit
GB8527829D0 (en) * 1985-11-12 1985-12-18 Hollingsworth Uk Ltd Fibre opening unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119223A (en) * 1955-07-02 1964-01-28 Julius F M Meimberg Spinning device
US3121306A (en) * 1961-11-09 1964-02-18 Vyzk Ustav Barlnarsky Method and apparatus for the continuous manufacture of yarn from textile staple fibers
US3375649A (en) * 1965-11-16 1968-04-02 Vyzk Ustav Bavlnarsky Servicing arrangement for spinning machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119223A (en) * 1955-07-02 1964-01-28 Julius F M Meimberg Spinning device
US3121306A (en) * 1961-11-09 1964-02-18 Vyzk Ustav Barlnarsky Method and apparatus for the continuous manufacture of yarn from textile staple fibers
US3375649A (en) * 1965-11-16 1968-04-02 Vyzk Ustav Bavlnarsky Servicing arrangement for spinning machines

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591952A (en) * 1968-08-10 1971-07-13 Vyzk Ustav Bavlnarsky Open end spinning apparatus
US3667205A (en) * 1969-03-07 1972-06-06 Ozdian Josef Mechanism for withdrawing and winding yarn in spinning units
US3685270A (en) * 1969-05-05 1972-08-22 Skf Kugellagerfabriken Gmbh System of spinning yarn
US3685272A (en) * 1969-07-08 1972-08-22 Tmm Research Ltd Textile spinning machines
US3724194A (en) * 1969-07-08 1973-04-03 Tmm Research Ltd Textile spinning machines
US3756007A (en) * 1970-06-18 1973-09-04 Skf Gmbh Spinning device for producing a filament from a fiber strip
US3728853A (en) * 1970-07-23 1973-04-24 Rieter Ag Maschf Method and apparatus for interrupting the supply of fiber material to a spinning machine
US3884027A (en) * 1972-01-07 1975-05-20 Schubert & Salzer Maschinen Cleaning access and braking mechanism for open end spinning machines
US3828539A (en) * 1972-03-13 1974-08-13 Platt International Ltd Open-end textile spinning machines
US3841075A (en) * 1972-04-15 1974-10-15 Krupp Gmbh Opening-up drum for an open end spinning device
FR2187951A1 (de) * 1972-06-07 1974-01-18 Rieter Ag Maschf
US3884028A (en) * 1972-06-28 1975-05-20 Fritz Stahlecker Apparatus for removing impurities from fibers
US3879926A (en) * 1972-08-05 1975-04-29 Skf Kugellagerfabriken Gmbh Method and apparatus for controlling the rejoining of thread in an open ended spinning machine
US3800520A (en) * 1973-06-04 1974-04-02 Rieter Ag Maschf Fiber opening roll of an open end spinning device
US3948031A (en) * 1973-07-02 1976-04-06 Instytut Wlokiennictwa Duct for feeding fibers to a pneumatic spinning chamber having a stationary whirl
US3943690A (en) * 1973-09-21 1976-03-16 John Michael Noguera Yarn spinning apparatus
US3986327A (en) * 1973-11-05 1976-10-19 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Separation of dirt from fibers in spinning machine
US5337552A (en) * 1991-06-28 1994-08-16 Rieter Ingolstadt Spinnereimaschinenbau Ag Open-end spinning machine frame structure
US5431006A (en) * 1992-06-29 1995-07-11 Rieter Ingolstadt Spinnereimaschinenbau Ag Open-end spinning machine
US5778654A (en) * 1995-11-30 1998-07-14 Fritz Stahlecker Adaptor for an open-end spinning device
US6311468B1 (en) * 1999-02-09 2001-11-06 Volkmann Gmbh & Co. Device for producing a twisted yarn by an integrated spinning and twisting process as well as fiber feed tube
CZ301241B6 (cs) * 2004-08-05 2009-12-16 Rieter Cz A. S. Zarízení k tesnení prostoru v dutém hrídeli sprádacího rotoru rotorového doprádacího stroje pro výrobu složkové príze

Also Published As

Publication number Publication date
CH474579A (de) 1969-06-30
DE1710047B2 (de) 1980-01-24
FR1556017A (de) 1969-01-31
DE1710047C3 (de) 1980-09-18
DD67058A (de)
DE1710047A1 (de) 1971-09-23
GB1209681A (en) 1970-10-21

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