DE102018115631A1 - Thread delivery device and system with a thread delivery device - Google Patents

Abstract

A thread delivery device (1) according to the invention for supplying a thread (40) to a textile machine is provided with a housing (2), with a storage device, from which the thread (40) is pulled through the textile machine, with a winding element (8) for winding the Thread (40) on the storage device, with a drivable shaft (5) for driving the winding element (8), with a magnet arrangement for fixing the storage device to the housing (2), with a bearing device for rotatably supporting the shaft (5) relative to the storage device and provided with a locking device for locking the bearing device. A wobble unit is designed to convey yarn turns (W) wound on the storage body (3) in a separation section (S1) at a distance, the conveying elements (9b, 9g, 9z) being passed through Openings (3b) can be moved beyond an envelope surface of the storage body (3) el section (S2), which adjoins the separation section (S1) and is arranged above a draw-off height of the storage body (3), the yarn turns (W) wound on the storage body (3) without any distance from one another in the direction of the lower edge of the storage body (3 ) to push.

Description

The invention relates to a thread delivery device and a system with a thread delivery device for delivering a thread to a textile machine.

The thread delivery device is provided with a housing and with a storage device, the thread being drawn off from the storage device by the textile machine. Such a yarn delivery device is also called a storage yarn delivery device.

The EP 0 829 442 B1 describes a weft feeder having a solid base and drum. A hollow windmill arm, which is driven by a hollow drive shaft, winds a large number of thread turns on the drum. A movement system is assigned to the drum, which is suitable for displacing the wound turns from the base towards the free end of the drum. The turns are kept spaced a pitch apart.

The movement system is formed by a set of movement bars. The moving bars partially and cyclically protrude from corresponding slots in the cylindrical surface of the drum. The movement bars are connected to a central hub via respective spokes to essentially form a drum-like structure. The hub is coupled to a bushing with the interposition of a roller bearing. The bushing is fitted on an eccentric section 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 to the free end of the drum. The pitch is identical for both directions of rotation or differs by a very small amount.

In the EP 0 968 949 B1 describes a weft feed device which has an oblique bush with a first and a second bush body. The first, semi-cylindrical sleeve 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 section and has an outer surface inclined to the axis of the shaft.

A weft store, 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 coils comprise a set of bars which are prevented from rotating with respect to the drum but which partially and variably protrude beyond the periphery of the drum. The means are moved by the motor shaft on which they are arranged by means of an inclined bush and a rotary bearing. 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 feeders with a drum, on the outer surface of which windings of the weft 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 that 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.

A joint arrangement in which the bearing 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.

In the EP 0 643 004 B1 describes a bushing that can be rotated and angled with respect to a drive shaft.

From the EP 1 796 994 B1 a yarn delivery device with a housing for knitting machines is known. 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 rod cage has an axis that is inclined relative to the axis of the drive shaft and is eccentric. It is rotatably supported on a bearing structure that includes a cylinder surface that is integrally formed at a free end of the drive shaft. The arrangement described enables narrow storage bodies which can be used, for example, in large numbers on a circular knitting machine.

A narrow storage body on which the thread turns are arranged separately can only take up a limited length of yarn. The amount of yarn required can vary greatly depending on the product that is manufactured on a knitting machine.

The object of the invention is to develop a yarn delivery device that can accommodate a larger amount of yarn in a narrow storage body. It is also the task to develop a system with a thread delivery device in which the thread delivery device can be converted by simple measures.

The object is achieved by the features of a thread delivery device and a system with the thread delivery device described below.

A thread delivery device according to the invention 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 delivery 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 thread delivery 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 thread delivery device. The wobble body has a bushing and conveying elements connected to the bushing. The wobble bearing unit comprises a bearing bush arranged on the shaft with a wobble section with an obliquely cylindrical lateral surface, the axis of which extends obliquely to the axis of the shaft, and at least one bearing arranged on the bearing bush for bearing the bush.

The wobble 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 through the wobble bearing unit through elongated openings of the storage body beyond an envelope surface of the storage body. The winding elements convey the yarn turns at a distance from one another in the direction of a withdrawal end of the storage body.

The envelope surface of the storage body has a polygonal circumference through the openings.

The withdrawal end of the storage body is the outer edge of the storage body via which the thread is drawn off towards the textile machine.

The wobble body mounted on the wobble bearing unit executes a wobble movement when the shaft rotates, during which the conveying elements in the separation section are cyclically moved beyond the envelope surface of the storage body and back. The yarn turns wound on the storage body of the storage device are lifted off and placed at a certain distance from one another. This wobbling movement of the wobble body leads to a separation of the yarn turns.

The wobble unit is designed to push the yarn windings wound on the storage body in a direction towards the withdrawal end of the storage body in a collecting section which adjoins the separation section and is arranged above a take-off height of the storage body. The draw-off height is the height in the course of the storage body from which the thread is drawn off the storage body. The trigger height is arranged above the trigger end of the storage body. You can, e.g. B. vary depending on the quality of the thread.

There is essentially no separation in the area of the collecting section. Instead, the yarn turns wound on the storage body and coming from the separation section are brought together, i. H. pushed side by side with touch. The thread turns are pushed further by previous thread turns.

In one embodiment, in which the thread delivery device has a fill level sensor, the draw-off height, which delimits the collecting section at the draw-off end of the storage body, is at the level of a measuring plane of the fill level sensor.

In one example, a fill level sensor is designed as a resilient element which is arranged on the storage body in the lower region of the storage body. It fires when a certain one Thread quantity is arranged on the level sensor. For example, 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 level sensor triggers.

In another example, the level sensor is designed as an optical sensor. For example, the plane perpendicular to the axis of the shaft that the optical sensor detects is defined as the measuring plane.

In one embodiment, 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 selected so that 10 to 50 yarn turns are adjacent to one another in the collecting section. I.e. the length of the collection section S2 corresponds to a distance of 10 to 50 yarn turns lying next to each other. In particular, the length of the collecting section corresponds 15 to 40 adjacent yarn turns.

In one embodiment, the wobble unit has a bearing bush, wherein an axis of the oblique-cylindrical outer surface of the wobble section of the bearing bush intersects the axis of the shaft at a point which intersects in the area of the withdrawal end, i. H. at or below the trigger height of the storage body.

In an alternative, the conveying elements are arranged along the collecting section essentially within the envelope surface of the storage body. In one embodiment, in which the conveying elements extend along the collecting section, the conveying elements are chamfered inwards along the collecting section. In one embodiment, in which the conveying elements extend along the collecting section, the conveying elements are arranged to be movable up to the envelope surface of the storage body. I.e. the conveying elements briefly touch the thread turns in the area of the collecting section during the wobbling movement. The thread turns are slightly raised. This ensures that the yarn turns lying next to each other are shifted without overlaps in the collecting section.

In a further alternative, the conveying elements extend essentially along the separation section.

In one embodiment, 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 which is in the region of a transition between the separation section and the collecting section.

A system has a thread delivery device and an exchange unit.

The wobble unit or elements of the wobble unit of the exchange unit are designed for a separation area which extends up to the trigger height. The separation area of the exchange unit extends over the separation section and the collection section of the thread delivery device. A collecting section is not provided when using this exchange unit.

In one embodiment, in which the thread delivery device has conveyor elements which are arranged along the collecting section essentially within the envelope surface of the storage body or only extend along the separation section, the exchange unit has conveyor elements. The conveyor elements of the exchange unit extend along the separation area. They can be moved beyond the envelope surface of the storage body through the openings in the separation area. In one embodiment, the exchange unit comprises the conveyor elements. In one embodiment, the exchange unit comprises a wobble body with the conveying elements.

In an embodiment in which the thread delivery device has a bearing bush, the axis of the oblique-cylindrical outer surface of the wobble section intersecting with the axis of the shaft at a point located at a transition between the separation section and the collecting section, the exchange unit comprises another bearing bush ,

In an alternative, the exchange unit has a bearing bush, the oblique-cylindrical outer surface of the wobble section intersecting the axis at a point which is above the trigger height. Here is z. B. the inclination, d. H. the angle between the axis of the oblique-cylindrical outer surface and the axis of the shaft, different from the corresponding one of the thread delivery device.

In another alternative, the position of the intersection is changed.

In one example, the bearing bush of the exchange unit has an axis of the oblique-cylindrical outer surface of the wobble section that intersects the axis of the shaft at a point that is at or below the trigger height of the storage body.

In one embodiment, the exchange unit only comprises the bearing bush.

In one embodiment, the exchange unit comprises a wobble bearing unit with the bearing bush.

A thread delivery device according to the invention 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 according to the invention is alternatively designed to deliver a weft thread to a weaving machine.

• 1 eine schematische Darstellung eines erfindungsgemäßen Fadenliefergerätes eines ersten Beispiels anhand einer Seitenansicht;
• 2 einen Schnitt im Wesentlichen durch das Aufwickelelement und die Speichervorrichtung des Fadenliefergerätes der 1 parallel zur Achse der Welle;
• 3 eine schematische Darstellung einer Speichervorrichtung des Fadenliefergerätes mit Garnwindungen, eine schematische Darstellung eines Ausschnittes eines Schnittes durch das die Speichervorrichtung senkrecht zur Achse der Welle, wobei der Ausschnitt ein in einer Öffnung eines Speicherkörpers angeordnetes Förderelement zeigt und schematische Darstellungen der Bewegung des Förderelementes an zwei verschiedenen Positionen im Bereich eines Separationsabschnittes;
• 4 eine schematische Darstellung eines Schnittes durch das Förderelement parallel zur Achse der Welle und eine schematische Darstellungen der Bewegung des Förderelementes im Bereich eines Sammelabschnittes, und zwar eine auf die Ebene projizierte Bewegung des Kontaktpunktes zwischen Förderelement und Faden;
• 5 eine schematische Darstellung eines Schnittes durch ein Förderelement eines Fadenliefergerätes einer Alternative des ersten Beispiels, wobei der Schnitt parallel zur Achse der Welle verläuft;
• 6 eine schematische Darstellung der Speichervorrichtung mit Garnwindungen des Fadenliefergerätes eines Systems mit dem Fadenliefergerät des ersten Beispiels und mit einer Austauscheinheit, wobei bei der dargestellten Speichervorrichtung die Förderelemente durch Förderelemente der Austauscheinheit ausgetauscht sind, und schematische Darstellungen der Bewegung eines Förderelementes an drei Positionen im Bereich eines Separationsbereiches;
• 7 eine schematische Darstellung eines Schnittes durch das Förderelement der Austauscheinheit des Systems mit dem Fadenliefergerät des ersten Beispiels, wobei der Schnitt parallel zur Achse der Welle verläuft;
• 8 eine schematische Darstellung einer Speichervorrichtung eines Fadenliefergerätes eines zweiten Beispiels mit Garnwindungen und schematische Darstellungen der Bewegung eines Förderelementes an einer Position im Bereich eines Separationsabschnittes und an einer Position am Übergang vom Separationsabschnitt zum Sammelabschnitt;
• 9 eine schematische Darstellung eines Schnittes durch eine Taumeleinheit mit einer Lagerbuchse des Fadenliefergerätes des zweiten Beispiels, wobei der Schnitt parallel zur Achse der Welle verläuft;
• 10 eine schematische Darstellung eines Schnittes durch ein Förderelement des Fadenliefergerätes des zweiten Beispiels, wobei der Schnitt parallel zur Achse der Welle verläuft;
• 11 eine schematische Darstellung eines Schnittes durch eine Taumeleinheit mit einer Lagerbuchse einer Austauscheinheit eines Systems mit dem Fadenliefergerät des zweiten Beispiels, wobei der Schnitt parallel zur Achse der Welle verläuft; und
• 12 eine schematische Darstellung eines Schnittes durch eine Taumeleinheit mit einer Lagerbuchse einer weiteren Austauscheinheit eines Systems mit dem Fadenliefergerät des zweiten Beispiels, wobei der Schnitt parallel zur Achse der Welle verläuft.

The invention is further explained with the aid of examples shown schematically in the drawings. Show it:

• 1 is a schematic representation of a yarn delivery device according to the invention of a first example based on a side view;
• 2 a section essentially through the winding element and the storage device of the thread delivery device 1 parallel to the axis of the shaft;
• 3 a schematic representation of a storage device of the thread delivery device with yarn turns, a schematic representation of a section of a section through which the storage device is perpendicular to the axis of the shaft, the section showing a conveying element arranged in an opening of a storage body and schematic representations of the movement of the conveying element at two different positions in the area of a separation section;
• 4 a schematic representation of a section through the conveying element parallel to the axis of the shaft and a schematic representation of the movement of the conveying element in the region of a collecting section, specifically a movement of the contact point between the conveying element and the thread projected onto the plane;
• 5 a schematic representation of a section through a conveying element of a yarn delivery device of an alternative of the first example, the section running parallel to the axis of the shaft;
• 6 is a schematic representation of the storage device with yarn turns of the yarn delivery device of a system with the yarn delivery device of the first example and with an exchange unit, the conveying elements being replaced by conveying elements of the exchange unit in the illustrated storage device, and schematic representations of the movement of a conveying element at three positions in the area of a separation area ;
• 7 a schematic representation of a section through the conveying element of the exchange unit of the system with the yarn delivery device of the first example, the section running parallel to the axis of the shaft;
• 8th a schematic representation of a storage device of a yarn delivery device of a second example with yarn turns and schematic representations of the movement of a conveying element at a position in the region of a separation section and at a position at the transition from the separation section to the collecting section;
• 9 is a schematic representation of a section through a wobble unit with a bearing bush of the yarn feeder of the second example, the section running parallel to the axis of the shaft;
• 10 is a schematic representation of a section through a conveyor element of the yarn delivery device of the second example, the section running parallel to the axis of the shaft;
• 11 a schematic representation of a section through a wobble unit with a bearing bush of an exchange unit of a system with the thread delivery device of the second example, the section running parallel to the axis of the shaft; and
• 12 a schematic representation of a section through a wobble unit with a bearing bush of a further exchange unit of a system with the thread delivery device of the second example, the section running parallel to the axis of the shaft.

First example: Thread delivery device and system with the thread delivery device.

An in 1 illustrated thread delivery device 1 for the delivery of a thread 40 to a textile machine is designed as a storage thread delivery device. The thread delivery device 1 has a housing 2 and a storage device with a storage body 3 on of which a thread 40 is pulled off by the textile machine. The textile machine is, for example, a circular knitting machine.

The housing 2 includes a holder 2a and a drive housing 2 B , The keeper 2a is with a fastening device for fastening the thread delivery device 1 on the textile machine, for example on a machine ring of the circular knitting machine. In one embodiment, the fastening device is on the side opposite the holder 2a appropriate. This is by an arrow 4a indicated. In this embodiment, the housing comprises a contact plate 2c ,

In a further embodiment, the fastening device is instead of the contact plate 2c , on the side of the holder 2a appropriate. This is by an arrow 4b indicated.

The thread delivery device 1 exhibits a drivable shaft 5 on which the storage body 3 is arranged, the shaft 5 towards the storage body 3 is rotatably mounted. I.e. the storage body 3 is with rotating shaft 5 fixable. An axis A of the shaft 5 is in the 1 to 3 indicated by a dashed line. A drive of the shaft not visible in the figures 5 is in the drive housing 2 B arranged. The keeper 2a extends parallel to the shaft 5 along the storage body 3 ,

The 2 shows a section of a section through the thread delivery device 1 the 1 parallel to axis A of the shaft 5 , which essentially comprises the winding element and the storage device.

The thread delivery device 1 has a magnet arrangement through which the storage device with the storage body 3 on the housing 2 is fixable. The magnet arrangement comprises a first magnet unit 6 that on the housing 2 is arranged, and a second magnet unit 7 that on the storage body 3 the storage device is arranged. The first magnet unit 6 has a first ring or cage 6a , which at the lower end of the drive housing in the drawing 2 B and concentric to the wave 5 is formed, and first, on the ring 6a arranged permanent magnets 6b on. The second magnet unit 7 has a concentric to the shaft 5 trained second ring or cage 7a and second, on the ring 7a arranged permanent magnets 7b on.

The permanent magnets 6b of the first ring 6a and the permanent magnets 7b of the second ring 7a are arranged in operation so that between the two rings 6a and 7a there is an attraction.

In this example, the second magnet unit is 7 formed as a separate element on the shaft 5 is rotatably arranged. The second magnet unit 7 is with the storage body 3 the storage device is designed to be connectable.

The storage device with the storage body 3 is in operation by the magnet arrangement with the two magnet units 6 . 7 on the housing 2 , namely on the drive housing 2 B , set.

The storage body 3 is designed as a storage drum with a body axis that is parallel to the axis A the wave 5 runs and this essentially corresponds.

The storage body 3 is at its withdrawal end, ie in 1 and 2 rounded lower end to a clamping surface 3a to build. It has axially extending openings on its outer circumference 3b on. I.e. the openings 3b extend in an envelope surface of the storage body 3 parallel to the axis A the wave 5 ,

The storage body 3 is with a level sensor FS provided, in the lower area of the storage body 3 is arranged.

The level sensor FS comprises a resilient element and a switching element. The level sensor FS , is actuated if by wound threads of thread W the resilient element in the direction of the axis A pressed and the switching element is triggered. In one example, the level sensor includes FS one in the arm 2 B arranged, not shown in the drawing, Hall sensor.

The plane in which the outermost thread turns are arranged when the level sensor FS is actuated by the thread turns W is hereinafter referred to as the measurement plane ME of the level sensor FS designated.

At the winding end of the storage body 3 , in the 1 to 3 above, is a take-up element 8th for winding the thread 40 on the storage body 3 arranged the storage device. The string 40 is in turns, which are referred to as thread or yarn turns, on the storage body 3 wound.

The winding element 8th is on the wave 5 arranged. The winding element 8th is on the wave 5 lockable and by the wave 5 drivable trained. The winding element 8th is between the first magnet unit 6 and the second magnet unit 7 arranged.

The winding element 8th is around the wave 5 concentric and disc-shaped. In this example is the take-up element 8th formed as a conical disk. On the outer circumference of the winding element 8th is a thread guide element 8a educated.

The winding element 8th is on the wave 5 slidably arranged in the axial direction.

The wave 5 is in its upper section as a hollow shaft with a cylindrical cavity 5a educated. The cavity 5a ends at a height in the area of the winding element 8th , Starting from the cavity 5a points the wave 5 an opening 5b on. The in 2 thread not drawn 40 is in operation through the cavity 5a and the opening 5b to the take-up element 8th guided. The winding element 8th has a guide channel 8b on the thread guide element 8a ends.

The winding element 8th protrudes with its guide channel 8b into the opening 5b the wave 5 , In the area of the opening 5b the wave 5 , which has a groove running in the axial direction, is the winding element 8th Slidable in the axial direction and guided at least along a cleaning section L in the radial direction.

The thread delivery device 1 has a bearing device that the shaft 5 compared to the second magnet unit 7 and the storage device rotatably supports. The storage facility is on the shaft 5 slidably arranged in the axial direction.

The storage device comprises in addition to the storage body 3 a wobble body 9 that is inside the storage body 3 is arranged. The tumbling body 9 has a socket 9a , with the socket 9a connected funding elements 9b and an elastic element 9c on. The funding elements 9b are in the axially extending openings 3b of the storage body 3 arranged.

The elastic element 9c is designed as a foam body, which is ring-shaped around the shaft 5 extends. The elastic element 9c is with the storage body 3 connected via a positive connection, the wobble body 9 due to the elasticity of the elastic element 9c to a small extent compared to the storage body 3 is mobile.

The storage device comprises a first storage unit 10 for rotatable bearing of the shaft 5 towards the storage body 3 with the second magnet unit 7 and a second bearing unit, hereinafter called a wobble bearing unit 11 called, for the rotatable mounting of the shaft 5 opposite the wobble body 9 ,

In this example, the wave extends 5 through the storage device. The first storage unit 10 has a first bearing designed as a ball bearing 12 and a second bearing designed as a ball bearing 13 on. The first camp 12 is for the rotatable mounting of the shaft 5 compared to the second magnet unit 7 on the wave 5 below the winding element 8th and above the storage body 3 arranged. The second camp 13 is for the rotatable mounting of the shaft 5 towards the storage body 3 at the bottom of the storage body 3 and in the area of the outer, ie lower, end of the shaft 5 arranged.

The wobble bearing unit 11 closes towards the outer end of the shaft 5 , in 2 below, to the camp 12 for the second magnet unit 7 on. It is located between the camps 12 and 13 the first storage unit 10 , The wobble bearing unit 11 includes one on the wave 5 arranged bearing bush 14 with sections with one to the axis A the wave 5 cylindrical surface 14a . 14c and with a middle wobble section with an obliquely cylindrical, ie cylindrical and oblique to the axis A trending, lateral surface 14b , I.e. an axis runs in the wobble section B1 the lateral surface 14b obliquely, and at an acute angle to the axis A the wave 5 , The wobble bearing unit 11 also has two as ball bearings trained, side by side bearings 15 . 16 on that 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 includes the upper section with the cylindrical outer surface 14a and the wobble section with the obliquely cylindrical outer surface 14b , This part with the wobble section that the bearings 15 . 16 carries and the wobble of the wobble cylinder 9 is also referred to as a helical hub. The other part, also referred to as a clamping bush, comprises the lower section with the cylindrical outer surface 14c , The helical hub and the clamping bush can be connected to each other by positive locking.

The two camps 15 . 16 are in the wobble section of the bearing bush 14 on the bearing bush 14 and thus on the wave 5 arranged. In one example are the bearings 15 . 16 with the wobble body 9 firmly connected. For example, they are on the socket 9a injected. The tumbling body 9 is on the two camps 15 . 16 rotatable and therefore on the shaft 5 arranged tumbling.

The wobble bearing unit 11 for the swash body 9 is on the wave 5 axially displaceable and radially guided. It includes a fitting element 17 that on the bearing bush 14 and on the shaft 5 is arranged. It is designed as an elongated, cuboid element.

The bearing bush 14 has a guide groove on its inner diameter 14d on in which the fitting element 17 is arranged. Here is the fitting element 17 in the guide groove 14d arranged with positive locking. The wave 5 has a corresponding guide opening extending in the axial direction 5c on. In this guide opening 5c is the fitting element 17 guided radially.

The thread delivery device 1 comprises a locking device for bracing the bearing device and the winding element 8th , The locking device has a locking element 18 on, at the outer, lower end of the shaft in the figures 5 is arranged. The locking element 18 is via a thread with the shaft 5 connected. I.e. the locking element 18 is via the threaded connection on the shaft 5 slidably trained.

The second camp 13 the first storage unit 10 is on the locking element 18 arranged. The second camp 13 is with the locking element 18 Slidable on the shaft via the threaded connection 5 educated. The storage body 3 is in the second camp 13 rotatably mounted.

By fixing the second magnet unit 7 on the first magnet unit 8th is the one with the second magnet unit 7 connected storage body 3 on the housing 2 set. The rotatable bearing through the first bearing unit 10 enables a fixed storage body 3 with the shaft rotating 5 , The inside of the storage body 3 on the bearing bush 14 arranged swash body 9 leads through the rotation of the shaft 5 a wobble.

The tumbling body 9 and the wobble bearing unit 11 form a wobble unit.

The operation of the wobble unit is based on a schematic representation of a storage device of the thread delivery device 1 with thread turns W on the right side of the 3 explained.

The wobble unit is designed in an upper separation section S1 on the storage body 3 wound yarn turns W to promote by far. These are the funding elements 9b through the openings 3b over an envelope surface of the storage body 3 movable out. The wobble unit is additionally designed in such a way that it adjoins the separation section S1 subsequent collection section S2 on the storage body 3 wound yarn turns W without any distance between them up to a deduction height of the storage body 3 to push. The trigger height is at the level of the measuring level ME of the level sensor FS arranged.

3 provides on its left side a schematic representation of a section of a section through the thread delivery device 1 the 1 perpendicular to the axis A the wave W represents, the cutout one in an opening 3b of the storage body 3 arranged conveyor element 9b shows. Below are in 3 schematic representations, namely projections, of the movement of the conveying element 9b at two different positions, namely an upper and a lower position, in the area of the separation section S1 to see. The funding element 9b leads in the area of the opening 3b a projected circular motion, namely around a circumferential line Um between one through the opening 3b formed opening edge U1 and one circumferential tangent U2 the circumference of the storage body 3 , In this example, 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 due to the outer surface of the bearing bush 14 determined in the wobble section. In this example, an axis intersects B1 the inclined cylindrical surface of the wobble section the axis A the wave 5 at one point P1 , which is below the deduction height of the storage body 3 located.

4 shows a conveyor element on the left 9b of this example. The funding element 9b is in the collection section S2 bevelled on the inside. In this example, where the conveyor elements 9b over the separation section S1 out along the collection section S2 extend, they are only within the envelope surface of the storage body 3 emotional. This is in the schematic representation of the movement of the conveyor element in 4 seen on the right.

In operation of the thread delivery device 1 with the housing 2 becomes a thread 40 delivered to a textile machine, the thread 40 is withdrawn from the storage device by the textile machine. The string 40 is through the take-up element 8th wound on the storage device. The winding element 8th is driven by the shaft 5 driven.

The storage device is provided by the magnet arrangement with a first magnet unit 6 on the housing 2 and a second magnet unit 7 on the storage device on the housing 2 set. The storage device has a storage body 3 and a wobble body 9 on.

Through the wobble unit from the wobble body 9 and the wobble bearing unit 11 are in the separation section S1 on the storage body 3 wound yarn turns W promoted at a distance from each other.

Through the wobble unit, the wound and separated yarn turns W in the collection section S2 that is attached to the separation section S1 connects in the direction of the lower edge of the storage body 3 pushed.

The beveled conveyor elements 3b only along the separation section S1 through the openings 3b of the storage body 3 over the envelope surface of the storage body 3 moved out. The circumference of the envelope surface, ie an envelope curve, is a polygon made up of sections of the circumferential tangents U2 and the opening seces U1 (see. 3 ) educated.

The length of the collection section S2 is chosen so that 10 to 30 yarn loops W in the collection section S2 against one another. In this example there are approximately 20 yarn loops W in the collection section S2 together.

In an alternative, the wobble unit is designed such that at least in a part of the collecting section S2 the yarn turns are raised by alternative conveying elements. The length of the collection section S2 is chosen so that 20 to 35 Thread turns in the collecting section S2 lie together.

5 shows one of the funding elements 9g an alternative to the first example. The funding element 9b extends along the separation section S1 , I.e. the funding elements 9b reach from above only along the separation section S1 , The funding elements 9b are shorter than the openings 3b trained, being in the collection section S2 the openings 3b of the storage body 3 are empty.

A system with a thread delivery device 1 of the first example comprises an exchange unit. The exchange unit has a wobble unit or elements of the wobble unit for a separation area S10 on, which is up to the deduction height of the storage body 3 extends.

The operation of the wobble unit of the exchange unit is based on a schematic representation of a storage device of the thread delivery device 1 with thread turns W on the right side of the 6 , similar to that of 3 , explained. The wobble unit is designed to operate in the separation area S10 on the storage body 3 wound yarn turns W to promote by far.

7 shows one of the funding elements 9 z the exchange unit. The funding element 9 z extends along the separation area S10 ,

6 puts on your left side, much like 3 , schematic representations of the movement of one of the conveyor elements 9 z at three different positions, namely an upper, a middle and a lower position, in the separation area S10 In this example, the circular movement of the conveying element decreases from top to bottom.

The size and the change in the size of the circular movement is due to the lateral surface of the (unchanged) bearing bush 14 determined in the wobble section. As mentioned, the axis intersects B1 the cylindrical outer surface of the wobble section, the axis A of the shaft 5 in the point P1 that is in the area of the trigger end of the storage body 3 , in particular at or below the deduction height of the storage body 3 , is located.

In an alternative, the exchange unit comprises the conveyor elements 9 z , The exchange elements are used for exchange 9b from the wobble body 9 removed and the conveyor elements 9 z the exchange unit to the wobble body 9 appropriate.

In a further alternative, the exchange unit comprises a wobble body 9 with the conveyor elements 9 z , The swashplate will be replaced 9 replaced by the alternative wobble body.

In a further alternative, the exchange unit comprises a wobble unit with the wobble body 9 with the conveyor elements 9 z , For replacement, the wobble unit of the thread delivery device is used 1 replaced by the wobble unit of the exchange unit.

Second example: thread delivery device and system with the thread delivery device.

The second example corresponds to the first example except for the features described below.

8th shows, similar to that 3 and 6 , the operation of the wobble unit of the second example, 9 a schematic representation of a wobble unit 90 with a bearing bush 140 of the second example and 10 a funding element 90b of the second example.

In the 8th to see, schematic representations of the movement of a conveyor element 90b at an upper position in the separation section S1 and at a lower position at the transition from the separation section S1 to the collection section S2 show that the circular movement of the conveyor element 90b in the opening 3b of the storage body 3 also decrease from top to bottom.

The size and the change in the size of the circular movement is due to the oblique-cylindrical outer surface 140b the bearing bush 140 determined in the wobble section. In this example, an axis intersects B2 the oblique cylindrical surface 140b of the wobble section, the axis A of the shaft 5 at one point P2 located at the transition between the separation section S1 and the collection section S2 located.

In the 9 shown wobble unit shows the wobble body 90 with socket 90a and the funding elements 90b who have favourited Tumble Bearing Unit 110 with bearing bush 140 and the camps 15 . 16 , The elastic element is not shown.

The axis B2 the oblique cylindrical surface 140b runs at an angle a of 1 ° to 5 ° to the axis A the wave 5 , The angle a is preferably 2 ° to 3 °.

The location of the intersection P2 the axis B2 with the axis A determines the beginning of the collection section S2 subsequent to the separation section S1 , The length of the collection section S2 is 3 mm to 20 mm with a length of the separation section S1 from 30 mm to 70mm.

The length of the collection section S2 is z. B. 3% to 35% of the separation section S1 ,

In this example the angle is a approx. 2.3 °, the length of the separation section S1 approx. 40 mm and the length of the collecting section S2 approx. 10 mm.

A system with a thread delivery device 1 of the second example comprises an exchange unit. In an alternative, the exchange unit has a wobble unit with a bearing bush 140 ' on that in 11 is shown.

The axis B2 ' the oblique cylindrical surface 140'b runs at a slightly larger angle α ' , This leads to a somewhat stronger separation of the yarn turns.

The length of the collection section S2 the exchange unit is e.g. B. somewhat less than that of the thread delivery device 1 of the second example, ie the collection section S2 is a little shorter.

In this example the angle is α ' approx. 2.8 °, the length of the separation section S1 approx. 85 mm and the length of the collecting section S2 approx. 6 mm.

By using the exchange unit, the separation and the amount of thread turns on the storage body 3 can be varied.

In an alternative, the exchange unit only includes the bearing bush 140 ' with the oblique cylindrical surface 140'b ,

In an alternative is the angle α ' the exchange unit is smaller than that of the thread delivery device 1 , Another alternative is the length of the collecting section S2 the exchange unit larger than that of the thread delivery device 1 ,

In a further alternative, the exchange unit has a wobble bearing unit with a bearing bush 141 on that in 12 is shown.

The bearing bush 141 is for a separation area S11 trained, which is up to the deduction height of the storage body 3 extends, ie for a separation without a collecting section.

An axis B10 the oblique cylindrical surface 141b runs at an angle a and intersects the axis A the wave 5 at one point P10 at the trigger height; in an alternative below the trigger height.

The angle a and the intersection P10 corresponds to z. B. that of the first example, first alternative.

By using the exchange unit, the thread delivery device can 1 be switched to a separation along the storage body.

In an alternative, the exchange unit only includes the bearing bush 141 with the oblique cylindrical surface 141b ,

LIST OF REFERENCE NUMBERS

1 Yarn feeder 2 casing 2a holder 2 B drive housing 3 storage body 3a clamping surface 3b openings 4 Befestig u ngsvorrichtu ng 5 wave 5a cavity 5b opening 5c guide opening 6 first magnet unit 6a first ring 6b first permanent magnets 7 second magnet unit 7a second ring 7b second permanent magnets 8th takeup 8a Thread guiding element 9 oscillatory body 9a Rifle 9b Conveyor element of the first example 9c elastic element 9g alternative conveyor element of the first example 9 z Conveyor element of the exchange unit of the first example 10 first storage unit 11 second storage unit 12 camp 13 camp 14 bearing bush 14a cylindrical surface 14b oblique cylindrical surface 14c cylindrical surface 14d guide 15 camp 16 camp 17 pass element 18 Locking element 20 Brakes 40 thread 90 tumbling body 90a Rifle 90b conveying elements 140 Bearing bush of the second example 140b oblique cylindrical surface 140 ' alternative bearing bush of the second example 140'b oblique cylindrical surface 141 Bearing bush of the exchange unit of the second example 141b oblique cylindrical surface A axis W Gamwindungen FS level sensor S1 separation section S2 collecting section S10 separation area S11 separation area B1 axis B10 axis B2 axis B2 ' axis P1 intersection P2 intersection P2 ' intersection P20 intersection ME measuring plane

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 0829442 B1 [0003]
• EP 0968949 B1 [0006]
• EP 0164033 B1 [0007]
• EP 0244511 B1 [0008]
• EP 0424424 B1 [0009]
• EP 0643004 B1 [0010]
• EP 1796994 B1 [0011]

Claims (10)

Thread delivery device (1) for delivering a thread (40) to a textile machine with a housing (2), with a storage device, from which the thread (40) is drawn off by the textile machine, with a winding element (8) for winding the thread (40 ) on the storage device, with a drivable shaft (5) with an axis (A) for driving the winding element (8), with a magnet arrangement for fixing the storage device to the housing (2), the storage device comprising a storage body (3) and a wobble body (9), a wobble unit being formed from the wobble body (9) of the storage device, and a wobble bearing unit (11), the wobble body (9) having a bushing (9a) and conveying elements (9b) connected to the bushing (9a) , which are arranged in axially extending openings (3b) of the storage body (3), the wobble bearing unit (11) having a bearing bush (14, 140, 140 ') arranged on the shaft (5) with at least one Swash section with an obliquely cylindrical outer surface (14b), the axis (B1, B2) of which extends obliquely to the axis (A) of the shaft (5), and at least one bearing (15, 16) arranged on the bearing bush (14, 140, 140 ') for storing the bushing (9a), the wobble unit being designed to convey yarn turns (W) wound on the storage body (3) in a separation section (S1) at a distance, the conveying elements (9b, 9g, 9z) being conveyed through the Openings (3b) can be moved beyond an enveloping surface of the storage body (3), characterized in that the wobble unit is designed to be arranged in a collecting section (S2) which adjoins the separation section (S1) and above a trigger height of the storage body (3 ) is arranged to push the thread turns (W) wound on the storage body (3) without any distance from one another in the direction of the lower edge of the storage body (3). Thread delivery device (1) Claim 1 , with a level sensor (FS), characterized in that the trigger height is arranged at the level of a measuring plane (ME) of the level sensor (FS). Thread delivery device (1) Claim 1 or 2 , characterized in that a length of the collecting section (S2) corresponds to a distance of 10 to 50 adjacent yarn turns (W). Thread delivery device (1) according to one of the Claims 1 to 3 , characterized in that the axis (B1) of the oblique-cylindrical outer surface (14b) of the wobble section of the bearing bush (14) intersects the axis (A) of the shaft (5) at a point (P1) which is at or below the trigger height of the storage body and that the conveying elements (9b) in the collecting section (S2) are chamfered inwards. Thread delivery device (1) according to one of the Claims 1 to 3 , characterized in that the axis (B1) of the cylindrical outer surface (14b) of the wobble section of the bearing bush (14) intersects the axis (A) of the shaft (5) at a point (P1) which is in the area below the trigger height of the storage body (3) and that the conveying elements (9g) extend essentially along the separation section (S1). Thread delivery device (1) according to one of the Claims 1 to 3 , characterized in that the axis (B2) of the oblique cylindrical lateral surface (14b) of the wobble section of the bearing bush (140) intersects the axis (A) of the shaft (5) at a point (P2) which intersects in a region at a transition between the separation section (S1) and the collection section (S2). System with a thread delivery device (1) according to one of the Claims 1 to 6 , characterized by an exchange unit, wherein a wobble unit or elements of the wobble unit of the exchange unit are formed for a separation area (S10) which extends up to or to below the trigger height of the storage body (3 '). System according to Claim 7 with a thread delivery device (1) Claim 4 or 5 , characterized in that the exchange unit has conveying elements (9z) which extend along the separation area (S10). System according to Claim 7 with a thread delivery device (1) Claim 6 , characterized in that the exchange unit has a bearing bush (141) with an axis (B1) of the oblique-cylindrical outer surface of the wobble section, which intersects the axis (A) of the shaft (5) at a point (P1) which is on or below the Deduction height of the storage body (3). System with a thread delivery device (1) Claim 6 , characterized in that the exchange unit has a bearing bush (140 ') with an axis (B2') of the oblique-cylindrical outer surface (140 ') of the wobble section which intersects the axis of the shaft (5) in an alternative point (P2') which is located in an area at a transition between a separation section (S1) and a collection section (S2).

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