EP3587643B1 - Fournisseur de fil et système doté d'un fournisseur de fil - Google Patents

Fournisseur de fil et système doté d'un fournisseur de fil Download PDF

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Publication number
EP3587643B1
EP3587643B1 EP19180832.8A EP19180832A EP3587643B1 EP 3587643 B1 EP3587643 B1 EP 3587643B1 EP 19180832 A EP19180832 A EP 19180832A EP 3587643 B1 EP3587643 B1 EP 3587643B1
Authority
EP
European Patent Office
Prior art keywords
wobble
section
axis
shaft
storage body
Prior art date
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Active
Application number
EP19180832.8A
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German (de)
English (en)
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EP3587643A1 (fr
Inventor
Richard Kaufmann
Stefan Dörr
Rolf Huss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Memminger IRO GmbH
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Memminger IRO GmbH
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Publication date
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Publication of EP3587643A1 publication Critical patent/EP3587643A1/fr
Application granted granted Critical
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D04B15/482—Thread-feeding devices comprising a rotatable or stationary intermediate storage drum from which the thread is axially and intermittently pulled off; Devices which can be switched between positive feed and intermittent feed
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D04B15/482—Thread-feeding devices comprising a rotatable or stationary intermediate storage drum from which the thread is axially and intermittently pulled off; Devices which can be switched between positive feed and intermittent feed
    • D04B15/484—Yarn braking means acting on the drum

Definitions

  • the invention relates to a thread feeding device and a system with a thread feeding device for delivering a thread to a textile machine.
  • the thread feeding device is provided with a housing and with a storage device, the thread being drawn off from the storage device by the textile machine.
  • a thread feeding device is also called a storage thread feeding device.
  • the EP 0 829 442 B1 describes a weft delivery device having a fixed base and a fixed drum.
  • a hollow windmill arm driven by a hollow drive shaft winds a plurality of turns of thread onto the drum.
  • a movement system is associated with the drum which is suitable for moving the wound turns from the base towards the free end of the drum. The turns are kept spaced apart by a pitch.
  • the motion system is made up of a set of motion sticks.
  • the moving bars project partially and cyclically from corresponding slots in the cylindrical surface of the drum.
  • the moving rods are connected to a central hub via respective spokes to form a substantially drum-like structure.
  • the hub is coupled with a bushing with the interposition of a roller bearing.
  • the bushing is fitted on an eccentric portion on the drive shaft.
  • the axis of the bushing forms a constant angle of inclination with respect to the eccentric axis.
  • the axis of the bushing intersects the axis of the drive shaft at a point adjacent the free end of the drum.
  • the pitch is identical for both directions of rotation or differs by a very small amount.
  • a weft feeder which has an oblique socket with a first and a second socket body.
  • the first, semi-cylindrical socket body is connected to the drive shaft to limit the eccentric portion of the shaft.
  • the second hollow socket body is arranged on this eccentric portion and has an outer surface inclined to the axis of the shaft.
  • a weft thread storage in which a rotating reel winds a supply of thread turns on a stationary drum, is from the EP 0 164 033 B1 known.
  • Means for moving the windings comprise a set of rods which are restrained from rotating with respect to the drum, but partially and variably project beyond the periphery of the drum.
  • the means are moved by the motor shaft on which they are by means of a Inclined bushing and a rotary bearing are arranged.
  • the inclined bushing is formed by two hollow bodies, one of which can be moved into a position rotated by 180 ° with respect to the other for the second direction of rotation.
  • Subject of EP 0 244 511 B1 is a storage device for weft thread delivery devices with a drum, on the outer surface of which windings of the weft thread are positioned by means of an arrangement actuated by the motor shaft.
  • the drum is provided with a series of elongated openings in which rods are arranged.
  • the rods are attached to a bracket which is mounted on an eccentric sleeve via a bearing.
  • the sleeve is mounted on a floating joint on the motor shaft. The inclination of the sleeve to the axis of the motor shaft can be fixed.
  • FIG EP 0 424 424 B1 A joint arrangement in which the bearings of the cylinder surface of such a sleeve can be adjusted on both sides from a position neutral to the drive shaft axis is shown in FIG EP 0 424 424 B1 described.
  • the housing rotatably supports a drive shaft and carries a stationary storage body.
  • the storage body has a support rod cage and a separation rod cage in its interior.
  • the separation bar cage has an axis which is inclined and eccentric relative to the axis of the drive shaft. It is rotatably supported on a bearing structure which comprises a cylindrical surface which is integrally formed at a free end of the drive shaft.
  • the DE 85 23 140 U1 describes a thread delivery device with a rotating body which has thread grooves in the form of a continuous screw thread on its outer surface.
  • a narrow storage body, on which the thread turns are arranged separately, can only hold a limited length of thread.
  • the amount of yarn required can vary greatly depending on the product that is made on a knitting machine.
  • the object of the invention is to develop a yarn feeding device which can accommodate a larger amount of yarn with a narrow storage body.
  • the task is also to develop a system with a yarn feeder in which the yarn feeder can be converted by simple measures.
  • the object is achieved by the features of a yarn feeder and a system with the yarn feeder described below.
  • a thread delivery device for supplying a thread to a textile machine is provided with a housing and with a storage device from which the thread is drawn off by the textile machine.
  • the thread feeding device has a winding element for winding the thread onto the storage device and a drivable shaft with an axis for driving the winding element.
  • the yarn feeding device comprises a magnet arrangement for fixing the storage device to the housing.
  • the storage device has a storage body and a wobble body.
  • the wobble body together with a wobble bearing unit, forms a wobble unit of the yarn feeding device.
  • the wobble body has a bush and conveying elements connected to the bush.
  • the wobble bearing unit comprises a bearing bush arranged on the shaft with a wobble section with an inclined cylindrical jacket surface, the axis of which runs obliquely to the axis of the shaft, and at least one bearing arranged on the bearing bush for mounting the bush.
  • the tumbling unit is designed to convey yarn turns wound on the storage body at a distance in a separation section.
  • the conveyor elements can be moved cyclically by the wobble bearing unit through elongated openings in the storage body beyond an envelope surface of the storage body.
  • the yarn turns are conveyed at a distance from one another in the direction of a withdrawal end of the storage body by the conveying elements.
  • the envelope surface of the storage body has a polygonal circumference due to the openings.
  • the withdrawal end of the storage body is the outer edge of the storage body via which the thread is withdrawn towards the textile machine.
  • the wobble body mounted on the wobble bearing unit performs a wobble movement in which the conveying elements in the separation section are moved cyclically over the envelope surface of the storage body and back. In doing so, the twine turns wound on the storage body of the storage device are lifted off and deposited with a certain distance from one another. This wobbling movement of the wobble body leads to a separation of the yarn turns.
  • the tumbling unit is designed to be in a collecting section which adjoins the separation section and above a withdrawal height of the storage body is arranged to push the turns of yarn wound on the storage body without spacing from one another in the direction of the withdrawal end of the storage body.
  • the withdrawal height is the height in the course of the storage body from which the thread is withdrawn from the storage body.
  • the withdrawal height is arranged above the withdrawal end of the storage body. You can, for. B. vary depending on the quality of the thread.
  • the take-off height which limits the collecting section to the take-off end of the storage body, is at the height of a measuring plane of the fill level sensor.
  • a level sensor is designed as a resilient element which is arranged on the storage body in the lower region of the storage body. It is triggered when a certain amount of thread is placed on the level sensor.
  • the plane perpendicular to the axis of the shaft at the level of the last thread turn is defined as the measuring plane, before the fill level sensor is triggered.
  • the level sensor is designed as an optical sensor.
  • the plane perpendicular to the axis of the shaft that the optical sensor detects is defined as the measuring plane.
  • the collecting section extends over a height of the storage body of 2 mm to 10 mm. In one embodiment, the collecting section extends over a height of the storage body of 3 mm to 7 mm.
  • the length of the collecting section is chosen so that 10 to 50 turns of yarn lie against one another in the collecting section. I.e. the length of the collecting section S2 corresponds to a distance of 10 to 50 adjacent yarn turns. In particular, the length of the collecting section corresponds to 15 to 40 yarn turns lying next to one another.
  • the wobble unit has a bearing bush, an axis of the inclined cylindrical outer surface of the wobble section of the bearing bush intersecting the axis of the shaft at a point located in the area of the discharge end, ie at or below the discharge height, of the storage body.
  • the conveying elements are arranged along the collecting section essentially within the envelope surface of the storage body.
  • the conveying elements are beveled inwards along the collecting section.
  • the conveying elements are arranged movably up to the envelope surface of the storage body. I.e. the conveying elements briefly touch the yarn windings in the area of the collecting section during the tumbling movement. The twine turns are raised slightly. This ensures the shifting of the twine turns lying next to one another without overlapping in the collecting section.
  • the conveyor elements extend essentially along the separation section.
  • the wobble unit has a bearing bush, the axis of the cylindrical outer surface of the wobble section of the bearing bush intersecting the axis of the shaft at a point located in the area of a transition between the separation section and the collecting section.
  • a system has a thread feeding device and an exchange unit.
  • the tumbling unit or elements of the tumbling unit of the exchange unit are designed for a separation area which extends up to the fume cupboard height.
  • the separation area of the exchange unit extends over the separation section and the collecting section of the thread feeder. A collecting section is not provided when using this exchange unit.
  • the exchange unit has conveyor elements.
  • the conveyor elements of the exchange unit extend along the separation area. They can be moved in the separation area through the openings beyond the envelope surface of the storage body.
  • the exchange unit comprises the conveyor elements.
  • the exchange unit comprises a wobble body with the conveying elements.
  • the exchange unit comprises another bearing bush.
  • the exchange unit has a bearing bush, the inclined cylindrical surface of the wobble section intersects the axis at a point that is above the take-off height. It is z. B. the inclination, d. H. the angle between the axis of the inclined cylindrical surface and the axis of the shaft, different from the corresponding one of the yarn feeder.
  • the bearing bush of the exchange unit has an axis of the inclined cylindrical outer surface of the wobble section which intersects the axis of the shaft at a point which is at or below the withdrawal height of the storage body.
  • the exchange unit comprises only the bearing bush.
  • the exchange unit comprises a wobble bearing unit with the bearing bush.
  • a thread delivery device is designed to deliver a thread to a knitting machine.
  • the knitting machine is a circular knitting machine or a flat knitting machine or a knitting machine or a similar machine.
  • a thread delivery device is designed as an alternative to the delivery of a weft thread to a weaving machine.
  • the illustrated thread feeding device 1 for delivering a thread 40 to a textile machine is designed as a storage thread feeding device.
  • the thread feeding device 1 has a housing 2 and a storage device with a storage body 3, from which a thread 40 is drawn off by the textile machine.
  • the textile machine is, for example, a circular knitting machine.
  • the housing 2 comprises a holder 2a and a drive housing 2b.
  • the holder 2a is provided with a fastening device for fastening the yarn feeder 1 to the textile machine, for example to a machine ring of the circular knitting machine.
  • the fastening device is attached on the side opposite the holder 2a. This is indicated by an arrow 4a.
  • the housing comprises a contact plate 2c.
  • the fastening device instead of the contact plate 2c, is attached to the side of the holder 2a. This is indicated by an arrow 4b.
  • the yarn feeding device 1 has a drivable shaft 5 on which the storage body 3 is arranged, the shaft 5 being rotatably mounted with respect to the storage body 3. I.e. the storage body 3 can be fixed when the shaft 5 is rotating.
  • An axis A of the shaft 5 is in the Figures 1 to 3 indicated by a dashed line.
  • a drive for the shaft 5, not visible in the figures, is arranged in the drive housing 2b.
  • the holder 2a extends parallel to the shaft 5 along the storage body 3.
  • the Figure 2 shows a detail of a section through the yarn feeder 1 of FIG Figure 1 parallel to the axis A of the shaft 5, which essentially comprises the winding element and the storage device.
  • the yarn feeding device 1 has a magnet arrangement, by means of which the storage device with the storage body 3 can be fixed on the housing 2.
  • the magnet arrangement comprises a first magnet unit 6, which is arranged on the housing 2, and a second magnet unit 7, which is arranged on the storage body 3 of the storage device.
  • the first magnet unit 6 has a first ring or cage 6a, which is formed on the lower end of the drive housing 2b in the drawing and concentric to the shaft 5, and first permanent magnets 6b arranged on the ring 6a.
  • the second magnet unit 7 has a second ring or cage 7a configured concentrically to the shaft 5 and second permanent magnets 7b arranged on the ring 7a.
  • the permanent magnets 6b of the first ring 6a and the permanent magnets 7b of the second ring 7a are arranged during operation in such a way that there is an attractive force between the two rings 6a and 7a.
  • the second magnet unit 7 is designed as a separate element which is rotatably arranged on the shaft 5.
  • the second magnet unit 7 is designed to be connectable to the storage body 3 of the storage device.
  • the storage device with the storage body 3 is fixed during operation by the magnet arrangement with the two magnet units 6, 7 on the housing 2, specifically on the drive housing 2b.
  • the storage body 3 is designed as a storage drum with a body axis which runs parallel to the axis A of the shaft 5 and essentially corresponds to this.
  • the storage body 3 is at its withdrawal end, ie in Figure 1 and 2 rounded lower end to form a clamping surface 3a. It has axially extending openings 3b on its outer circumference. I.e. the openings 3 b extend in an envelope surface of the storage body 3 parallel to the axis A of the shaft 5.
  • the storage body 3 is provided with a level sensor FS, which is arranged in the lower region of the storage body 3.
  • the level sensor FS comprises a resilient element and a switching element.
  • the fill level sensor FS is actuated when the resilient element is pressed in the direction of axis A by the wound yarn turns W and the switching element is triggered.
  • the fill level sensor FS comprises a Hall sensor, not shown in the drawing, which is arranged in the housing arm 2b.
  • the plane in which the outermost yarn turns are arranged when the filling level sensor FS is actuated by the yarn turns W is referred to below as the measuring plane ME of the filling level sensor FS.
  • a winding element 8 is arranged for winding the thread 40 onto the storage body 3 of the storage device.
  • the thread 40 is wound onto the storage body 3 in turns, which are referred to as thread or yarn turns.
  • the winding element 8 is arranged on the shaft 5.
  • the winding element 8 can be fixed on the shaft 5 and can be driven by the shaft 5.
  • the winding element 8 is arranged between the first magnet unit 6 and the second magnet unit 7.
  • the winding element 8 is designed concentrically around the shaft 5 and in the form of a disk.
  • the winding element 8 is designed as a conical disk.
  • a thread guide element 8a is formed on the outer circumference of the winding element 8.
  • the winding element 8 is arranged on the shaft 5 so as to be displaceable in the axial direction.
  • the upper section of the shaft 5 is designed as a hollow shaft with a cylindrical cavity 5a.
  • the cavity 5a ends at a level in the area of the winding element 8.
  • the shaft 5 has an opening 5b.
  • the in Figure 2 The thread 40, not shown, is guided through the cavity 5a and the opening 5b to the winding element 8 during operation.
  • the winding element 8 has a guide channel 8b which ends at the thread guide element 8a.
  • the winding element 8 protrudes with its guide channel 8b into the opening 5b of the shaft 5 Direction guided.
  • the yarn feeding device 1 has a bearing device which rotatably supports the shaft 5 relative to the second magnet unit 7 and the storage device.
  • the bearing device is arranged on the shaft 5 so as to be displaceable in the axial direction.
  • the storage device comprises a wobble body 9 which is arranged in the interior of the storage body 3.
  • the wobble body 9 has a bushing 9a, conveying elements 9b connected to the bushing 9a, and an elastic element 9c.
  • the conveying elements 9b are arranged in the axially extending openings 3b of the storage body 3.
  • the elastic element 9c is designed as a foam body which extends annularly around the shaft 5.
  • the elastic element 9c is connected to the storage body 3 via a form fit, the wobble body 9 being movable to a small extent relative to the storage body 3 due to the elasticity of the elastic element 9c.
  • the bearing device comprises a first bearing unit 10 for the rotatable mounting of the shaft 5 with respect to the storage body 3 with the second magnet unit 7 and a second bearing unit, hereinafter referred to as the wobble bearing unit 11, for the rotatable mounting of the shaft 5 with respect to the wobble body 9.
  • the shaft 5 extends through the storage device.
  • the first bearing unit 10 has a first bearing 12 designed as a ball bearing and a second bearing 13 designed as a ball bearing.
  • the first bearing 12 is arranged for the rotatable mounting of the shaft 5 with respect to the second magnet unit 7 on the shaft 5 below the winding element 8 and above the storage body 3.
  • the second bearing 13 is for the rotatable mounting of the shaft 5 with respect to the storage body 3 at the lower end of the storage body 3 and in the area of the outer, d. H. the lower end of the shaft 5 is arranged.
  • the wobble bearing unit 11 closes in the direction of the outer end of the shaft 5, in Figure 2 below, to the bearing 12 for the second magnet unit 7. It is located between the bearings 12 and 13 of the first bearing unit 10.
  • the wobble bearing unit 11 comprises a bearing bush 14 arranged on the shaft 5 with sections with a jacket surface 14a, 14c that is cylindrical to the axis A of the shaft 5 and with a central wobble section with an inclined cylindrical, ie cylindrical and oblique to the axis A, lateral surface 14b. I.e. In the wobble section, an axis B1 of the lateral surface 14b runs obliquely, specifically at an acute angle, to the axis A of the shaft 5.
  • the wobble bearing unit 11 also has two bearings 15, 16 designed as ball bearings, arranged next to one another, which are located on the wobble section of the bearing bush 14 are arranged.
  • the bearing bush 14 is formed in several parts in this example.
  • Part of the bearing bush 14 comprises the upper section with the cylindrical jacket surface 14a and the wobble section with the inclined cylindrical jacket surface 14b.
  • This part with the wobble section, which carries the bearings 15, 16 and causes the wobble movement of the wobble cylinder 9, is also referred to as the inclined hub.
  • the other part, also referred to as a clamping bushing comprises the lower section with the cylindrical jacket surface 14c.
  • the inclined hub and the clamping bush can be connected to one another by a form fit.
  • the two bearings 15, 16 are arranged in the wobble section of the bearing bush 14 on the bearing bush 14 and thus on the shaft 5.
  • the bearings 15, 16 are firmly connected to the wobble body 9.
  • They are injected into the socket 9a.
  • the wobble body 9 is rotatable on the two bearings 15, 16 and is thus arranged in a wobbling manner on the shaft 5.
  • the wobble bearing unit 11 for the wobble body 9 is arranged axially displaceably on the shaft 5 and is guided radially. It comprises a fitting element 17 which is attached to the bearing bush 14 and is arranged on the shaft 5. It is designed as an elongated, cuboid element.
  • the bearing bush 14 On its inner diameter, the bearing bush 14 has a guide groove 14d in which the fitting element 17 is arranged.
  • the fitting element 17 is arranged in the guide groove 14d with a form fit.
  • the shaft 5 has a corresponding guide opening 5c extending in the axial direction. The fitting element 17 is guided radially in this guide opening 5c.
  • the yarn feeding device 1 comprises a locking device for tensioning the bearing device and the winding element 8.
  • the locking device has a locking element 18 which is arranged on the outer, lower end of the shaft 5 in the figures.
  • the locking element 18 is connected to the shaft 5 via a thread. I.e. the locking element 18 is designed to be displaceable on the shaft 5 via the threaded connection.
  • the second bearing 13 of the first bearing unit 10 is arranged on the locking element 18.
  • the second bearing 13 is designed to be displaceable on the shaft 5 with the locking element 18 via the threaded connection.
  • the storage body 3 is rotatably mounted on the second bearing 13.
  • the storage body 3 connected to the second magnet unit 7 is fixed to the housing 2.
  • the rotatable mounting by the first bearing unit 10 enables a stationary storage body 3 when the shaft 5 is rotating.
  • the wobble body 9 arranged in the interior of the storage body 3 on the bearing bush 14 executes a wobbling movement as a result of the rotation of the shaft 5.
  • the wobble body 9 and the wobble bearing unit 11 form a wobble unit.
  • the functioning of the wobble unit is illustrated by a schematic representation of a storage device of the yarn feeding device 1 with yarn windings W on the right side of the Figure 3 explained.
  • the tumbling unit is designed to convey yarn windings W wound on the storage body 3 in an upper separation section S1 at a distance.
  • the conveying elements 9b can be moved through the openings 3b beyond an envelope surface of the storage body 3.
  • the tumbling unit is additionally designed in a collecting section S2 on the storage body 3 that adjoins the separation section S1 to push wound yarn windings W without spacing from one another up to a withdrawal height of the storage body 3.
  • the take-off height is arranged at the level of the measuring plane ME of the level sensor FS.
  • Figure 3 represents on its left-hand side a schematic representation of a section of a section through the yarn feeding device 1 of Figure 1 perpendicular to the axis A of the shaft W, the section showing a conveying element 9b arranged in an opening 3b of the storage body 3.
  • schematic representations namely projections, of the movement of the conveying element 9b at two different positions, namely an upper and a lower position, can be seen in the area of the separation section S1.
  • the conveying element 9b performs a projected circular movement in the area of the opening 3b, namely around a circumferential line Um between an opening edge U1 formed by the opening 3b and a circumferential rod U2 of the circumference of the storage body 3.
  • the circular movement is greater in the upper position than in the lower position.
  • the size and the change in the size of the circular movement is determined by the outer surface of the bearing bush 14 in the wobble section.
  • an axis B1 of the obliquely cylindrical lateral surface of the wobble section intersects the axis A of the shaft 5 at a point P1 which is below the take-off height of the storage body 3.
  • FIG Figure 4 shows on the left a conveyor element 9b of this example.
  • the conveying element 9b is beveled inwards in the collecting section S2.
  • the conveying elements 9b extend beyond the separation section S1 along the collecting section S2, they are only moved within the envelope surface of the storage body 3. This is shown in the schematic representation of the movement of the conveying element in FIG Figure 4 seen on the right.
  • a thread 40 is supplied to a textile machine, the thread 40 being drawn off from the storage device by the textile machine.
  • the thread 40 is wound onto the storage device by the winding element 8.
  • the take-up element 8 is driven by the driven shaft 5.
  • the storage device is fixed to the housing 2 by the magnet arrangement with a first magnet unit 6 on the housing 2 and a second magnet unit 7 on the storage device.
  • the storage device has a storage body 3 and a wobble body 9.
  • the bevelled conveyor elements 9b are only moved along the separation section S1 through the openings 3b of the storage body 3 beyond the envelope surface of the storage body 3.
  • the circumference of the envelope surface ie an envelope curve, is defined by a polygon made up of sections of the circumferential tangents U2 and the opening edges U1 (see Figure 3 ) educated.
  • the length of the collecting section S2 is chosen so that 10 to 30 yarn turns W lie against one another in the collecting section S2. In this example, about 20 turns of yarn W lie against one another in the collecting section S2.
  • the tumbling unit is designed in such a way that the yarn windings are raised by alternative conveying elements at least in part of the collecting section S2.
  • the length of the collecting section S2 is selected so that 20 to 35 turns of yarn lie against one another in the collecting section S2.
  • FIG 5 shows one of the conveyor elements 9g of an alternative of the first example.
  • the conveying element 9b extends along the separation section S1. I.e. the conveying elements 9b extend from above only along the separation section S1.
  • the conveying elements 9b are shorter than the openings 3b, the openings 3b of the storage body 3 in the collecting section S2 being empty.
  • a system with a thread feeding device 1 of the first example not according to the invention comprises an exchange unit.
  • the exchange unit has a tumbling unit or elements of the tumbling unit for a separation area S10 which extends up to the withdrawal height of the storage body 3.
  • the functioning of the wobble unit of the exchange unit is illustrated by a schematic representation of a storage device, not according to the invention, of the yarn feeding device 1 with yarn windings W on the right-hand side of FIG Figure 6 , similar to that of the Figure 3 explained.
  • the tumbling unit is designed to convey yarn turns W wound on the storage body 3 in the separation area S10 at a distance during operation.
  • FIG 7 shows one of the conveyor elements 9z of the exchange unit.
  • the conveying element 9z extends along the separation area S10.
  • Figure 6 poses on their left, similar to Figure 3 , schematic representations of the movement of one of the conveyor elements 9z at three different positions, namely an upper, a middle and a lower position, in the separation area S10.
  • the circular movement of the conveyor element decreases from top to bottom.
  • the size and the change in the size of the circular movement is determined by the surface area of the (unchanged) bearing bush 14 in the wobble section.
  • the axis B1 of the cylindrical outer surface of the wobble section intersects the axis A of the shaft 5 at the point P1, which is located in the area of the withdrawal end of the storage body 3, in particular at or below the withdrawal height of the storage body 3.
  • the exchange unit comprises the conveying elements 9z.
  • the conveyor elements 9b are removed from the wobble body 9 and the conveyor elements 9z of the exchange unit are attached to the wobble body 9.
  • the exchange unit comprises a wobble body 9 with the conveying elements 9z.
  • the wobble body 9 is replaced by the alternative wobble body.
  • the exchange unit comprises a tumbling unit with the
  • Second example Yarn feeding device and system with the yarn feeding device.
  • the second example corresponds to the first example except for the features described below.
  • Figure 8 shows similar to that Figures 3 and 6th , the functioning of the wobble unit of the second example,
  • Figure 9 a schematic representation of a wobble unit 90 with a bearing bush 140 of the second example and
  • Figure 10 a conveying member 90b of the second example.
  • the size and the change in the size of the circular movement is determined by the inclined cylindrical jacket surface 140b of the bearing bush 140 in the wobble section.
  • an axis B2 of the inclined cylindrical lateral surface 140b of the wobble section intersects the axis A of the shaft 5 at a point P2, which is located at the transition between the separation section S1 and the collecting section S2.
  • the wobble unit shown shows the wobble body 90 with the bushing 90a and the conveyor elements 90b, the wobble bearing unit 110 with the bearing bushing 140 and the bearings 15, 16.
  • the elastic element is not shown.
  • the axis B2 of the inclined cylindrical lateral surface 140b extends at an angle ⁇ of 1 ° to 5 ° to the axis A of the shaft 5.
  • the angle ⁇ is preferably 2 ° to 3 °.
  • the position of the intersection point P2 of the axis B2 with the axis A determines the start of the collecting section S2 following the separation section S1.
  • the length of the collecting section S2 is 3 mm to 20 mm with a length of the separation section S1 of 30 mm to 70 mm.
  • the length of the collecting section S2 is z. B. 3% to 35% of the separation section S1.
  • the angle ⁇ is approx. 2.3 °
  • the length of the separation section S1 is approx. 40 mm
  • the length of the collecting section S2 is approx. 10 mm.
  • a system with a yarn feeding device 1 of the second example comprises an exchange unit.
  • the exchange unit has a wobble unit with a bearing bush 140 ', which is shown in FIG Figure 11 is shown.
  • the axis B2 'of the inclined cylindrical lateral surface 140'b runs at a somewhat larger angle ⁇ '. This leads to a somewhat stronger separation of the twine turns.
  • the length of the collecting section S2 of the exchange unit is e.g. B. slightly less than that of the yarn feeder 1 of the second example, d. H. the collecting section S2 is somewhat shorter.
  • the angle ⁇ ' is approx. 2.8 °
  • the length of the separation section S1 is approx. 85 mm
  • the length of the collecting section S2 is approx. 6 mm.
  • the separation and the amount of yarn turns on the storage body 3 can be varied.
  • the exchange unit comprises only the bearing bush 140 'with the inclined cylindrical jacket surface 140'b.
  • the angle ⁇ ′ of the exchange unit is smaller than that of the thread feeder 1. In a further alternative, the length of the collecting section S2 of the exchange unit is greater than that of the thread feeder 1.
  • the exchange unit has a wobble bearing unit with a bearing bush 141, which is shown in FIG Figure 12 is shown.
  • the bearing bush 141 is designed for a separation area S11, which extends up to the withdrawal height of the storage body 3, i. H. for a separation without a collecting section.
  • An axis B10 of the inclined cylindrical lateral surface 141b runs at an angle ⁇ and intersects the axis A of the shaft 5 at a point P10 on the take-off height; in an alternative below the deduction height.
  • the angle ⁇ and the intersection point P10 corresponds, for. B. that of the first example, first alternative.
  • the yarn feeding device 1 can be switched to a separation along the storage body.
  • the exchange unit comprises only the bearing bush 141 with the inclined cylindrical jacket surface 141b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Claims (10)

  1. Fournisseur (1) pour alimenter un fil (40) à une machine textile avec un boîtier (2), avec un dispositif de stockage à partir duquel le fil (40) est enlevé par l'intermédiaire de la machine textile, avec un élément d'enroulement (8) pour enrouler le fil (40) sur le dispositif de stockage, avec un arbre (5) pouvant être entraîné et avec un axe (A) pour entraîner l'élément d'enroulement (8), avec un dispositif magnétique pour fixer le dispositif de stockage sur le boîtier (2), dans lequel le dispositif de stockage présente un corps de stockage (3) et un corps oscillant (9),
    dans lequel une unité oscillante est formée par le corps oscillant (9) du dispositif de stockage et une unité de palier oscillant (11),
    dans lequel le corps oscillant (9) présente une douille (9a) et des éléments de transport (9b) connectés à la douille (9a), qui sont disposés dans des ouvertures (3b) du corps de stockage (3) s'étendant axialement,
    dans lequel l'unité de palier oscillant (11) comprend une douille de palier (14, 140, 140') disposée sur l'arbre (5) au moins avec une section oscillante avec une surface d'enveloppe (14b) obliquement cylindrique, dont l'axe (B1, B2) s'étend obliquement par rapport à l'axe (A) de l'arbre (5), et au moins un palier (15, 16) disposé sur la douille de palier (14, 140, 140') pour le stockage de la douille (9a),
    dans lequel l'unité oscillante est réalisée pour transporter des enroulements de fil (W) enroulés sur le corps de stockage (3) dans une section de séparation (S1) avec un écart, dans lequel les éléments de transport (9b, 9g, 9z) peuvent être déplacés à travers les ouvertures (3b) au-dela une surface d'enveloppe du corps de stockage (3),
    caractérisé en ce que
    l'unité oscillante est réalisée pour pousser les enroulements de fil (W) enroulés sur le corps de stockage (3) dans une section de collecte (S2), qui se raccorde à la section de séparation (S1) et qui est disposée au-dessus d'une hauteur de prélèvement du corps de stockage (3) en direction du bord inférieur du corps de stockage (3) sans écart l'un à l'autre.
  2. Fournisseur (1) selon la revendication 1, avec un capteur de niveau de remplissage (FS), caractérisé en ce que la hauteur de prélèvement est disposée à hauteur d'un plan de mesure (ME) du capteur de niveau de remplissage (FS).
  3. Fournisseur (1) selon la revendication 1 ou 2, caractérisé en ce qu'une longueur de la section de collecte (S2) correspond à une distance de 10 à 50 enroulements de fil (W) disposés les uns contre les autres.
  4. Fournisseur (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'axe (B1) de la surface d'enveloppe (14b) obliquement cylindrique de la section oscillante de la douille de palier (14) coupe l'axe (A) de l'arbre (5) en un point (P1) qui se trouve à ou sous la hauteur de prélèvement du corps de stockage, et en ce que les éléments de transport (9b) dans la section de collecte (S2) sont biseautés vers l'intérieur.
  5. Fournisseur (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'axe (B1) de la surface d'enveloppe (14b) obliquement cylindrique de la section oscillante de la douille de palier (14) coupe l'axe (A) de l'arbre (5) en un point (P1), qui se trouve dans la zone située sous la hauteur de prélèvement du corps de stockage (3), en ce que les éléments de transport (9g) s'étendent sensiblement le long de la section de séparation (S1), et en ce que les éléments de transport (9g) sont réalisés plus courts que les ouvertures (3b), dans lequel les ouvertures (3b) du corps de stockage (3) sont vides dans la section de collecte (S2).
  6. Fournisseur (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'axe (B2) de la surface d'enveloppe (14b) obliquement cylindrique de la section oscillante de la douille de palier (140) coupe l'axe (A) de l'arbre (5) en un point (P2) qui se trouve dans une zone au niveau d'une transition entre la section de séparation (S1) et la section de collecte (S2).
  7. Système avec un fournisseur (1) selon l'une quelconque des revendications 1 à 6, caractérisé par une unité d'échange, dans lequel une unité oscillante ou des éléments de l'unité oscillante de l'unité d'échange sont formés pour une zone de séparation (S10) qui s'étend jusqu'à ou jusque sous la hauteur de prélèvement du corps de stockage (3').
  8. Système selon la revendication 7 avec un fournisseur (1) selon la revendication 4 ou 5, caractérisé en ce que l'unité d'échange présente des éléments de transport (9z) qui s'étendent le long de la zone de séparation (S10).
  9. Système selon la revendication 7 avec un fournisseur (1) selon la revendication 5, caractérisé en ce que l'unité d'échange présente une douille de palier (141) avec un axe (B10) de la surface d'enveloppe obliquement cylindrique de la section oscillante coupant l'axe (A) de l'arbre (5) en un point (P10) qui se trouve à ou sous la hauteur de prélèvement du corps de stockage (3).
  10. Système avec un fournisseur (1) selon la revendication 6, caractérisé en ce que l'unité d'échange présente une douille de palier (140') avec un axe (B2') de la surface d'enveloppe (140') obliquement cylindrique de la section oscillante qui coupe l'axe de l'arbre (5) en un point (P2') qui se trouvé dans une zone au niveau d'une transition entre une section de séparation (S1) et une section de collecte (S2).
EP19180832.8A 2018-06-28 2019-06-18 Fournisseur de fil et système doté d'un fournisseur de fil Active EP3587643B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018115631.6A DE102018115631A1 (de) 2018-06-28 2018-06-28 Fadenliefergerät und System mit einem Fadenliefergerät

Publications (2)

Publication Number Publication Date
EP3587643A1 EP3587643A1 (fr) 2020-01-01
EP3587643B1 true EP3587643B1 (fr) 2020-12-02

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ID=66999563

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EP19180832.8A Active EP3587643B1 (fr) 2018-06-28 2019-06-18 Fournisseur de fil et système doté d'un fournisseur de fil

Country Status (4)

Country Link
EP (1) EP3587643B1 (fr)
CN (1) CN110656434B (fr)
DE (1) DE102018115631A1 (fr)
TW (1) TWI698390B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000018535A1 (it) * 2020-07-30 2022-01-30 Lgl Electronics Spa Alimentatore di filato ad accumulo provvisto di dispositivo distanziatore per la separazione delle spire di filato avvolte sul tamburo.

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Publication number Priority date Publication date Assignee Title
IT8422055V0 (it) 1984-06-04 1984-06-04 Roy Electrotex Spa Alimentatore di trama per telai di tessitura comportante mezzi perfezionati per accumulare la riserva di trama.
IT1176259B (it) * 1984-06-04 1987-08-18 Roy Electrotex Spa Alimentatore di trama per telai di tessitura
DE8523140U1 (de) * 1985-08-10 1987-01-08 Sobrevin Société de brevets industriels-Etablissement, Vaduz Liefervorrichtung für laufende Fäden
IT1204330B (it) 1986-04-30 1989-03-01 Sarfati & Vischiani Spa Dispositivo accumulatore per alimentatori di filo di trama a macchine tessili
DD282366A7 (de) * 1988-03-04 1990-09-12 Ingbuero Und Rationalisierung Vorrichtung zum speichern von schussfaeden
DE3822309A1 (de) 1988-07-01 1990-01-04 Iro Ab Fadenspeicher- und -liefervorrichtung
DE4206607A1 (de) * 1991-09-26 1993-04-01 Erich Roser Fadenliefergeraet fuer fadenverbrauchende textilmaschinen
IT1261256B (it) 1993-09-10 1996-05-09 Lgl Electronics Spa Dispositivo di separazione delle spire di riserva di filato per apparecchi alimentatori di trama e telai di tessitura e simili
IT239807Y1 (it) 1996-09-11 2001-03-13 Lgl Electronics Spa Dispositivo perfezionato di separazione delle spire di filato perapparecchi alimentatori di trama
DE19811240C2 (de) * 1998-03-14 2000-05-31 Memminger Iro Gmbh Fadenliefergerät mit verbessertem Fadenlauf
IT245866Y1 (it) 1998-07-03 2002-03-26 Lgl Electronics Spa Alimentatore di trama per telai di tessitura con mezzi perfezionatidi avanzamento e separazione delle spire della riserva di trama
DE102004049211A1 (de) 2004-10-08 2006-04-20 Iro Ab Fadenliefergerät
EP2047018B1 (fr) * 2006-08-02 2011-12-21 Memminger-IRO GmbH Fournisseur de fil avec tambour fournisseur de fil amovible
EP2204481B1 (fr) * 2008-12-30 2013-07-10 L.G.L. Electronics S.p.A. Fournisseur de fil positif avec limiteur de tension
ITTO20120435A1 (it) * 2012-05-17 2013-11-18 Lgl Electronics Spa Alimentatore di filato a tamburo rotante per macchine tessili.
ITTO20130616A1 (it) * 2013-07-22 2015-01-23 Lgl Electronics Spa Alimentatore di filato munito di tamburo avvolgi-trama e di dispositivo frena-trama controllato in retroazione

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Also Published As

Publication number Publication date
TW202005897A (zh) 2020-02-01
CN110656434B (zh) 2021-04-13
DE102018115631A1 (de) 2020-01-02
CN110656434A (zh) 2020-01-07
TWI698390B (zh) 2020-07-11
EP3587643A1 (fr) 2020-01-01

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