TWI698390B - Thread feeding device and system with a thread feeding device - Google Patents

Abstract

A thread feeding device (1) according to the invention for feeding a thread (40) to a textile machine is provided with a housing (2), a storage device, from which the thread (40) is drawn off by the textile machine, a winding element (8) for winding the thread (40) onto the storage device, a drivable shaft (5) for driving the winding element (8), a magnet arrangement for fixing the storage device onto the housing (2), a bearing device for rotatably supporting the shaft (5) relative to the storage device and a locking device for locking the bearing device.

A wobble unit is designed in a separation section (S1) to convey yarn windings (W) wound onto the storage body (3) with spacing between one another, wherein the conveying elements (9b, 9g, 9z) can be moved through the openings (3b) over an enveloping surface of the storage body (3).

The wobble unit is designed in an accumulation section (S2), which adjoins the separation section (S1) and is arranged above a draw-off height of the storage body (3), to push the yarn windings (W) wound onto the storage body (3) without any spacing between one another in the direction of the lower edge of the storage body (3).

Description

Yarn feeding device and system with yarn feeding device

The invention relates to a yarn feeding device for feeding yarn to a textile machine and a system with the yarn feeding device.

The yarn feeding device is provided with a housing and a storage device, wherein the yarn is drawn from the storage device by a textile machine. This yarn feeding device is also called a storage yarn feeding device.

European Patent No. EP 0 829 442 B1 describes a weft transfer device, which has a fixed base and a fixed drum. A hollow windmill arm is driven by a hollow drive shaft to wind a plurality of yarn windings on the drum. The drum is assigned to a movement system adapted to move the winding windings from the base against the free end of the drum. The windings are separated by a mutual interval.

The movement system is formed by a group of movement rods. The moving rods project partially and cylindrically from corresponding slots in the cylindrical surface of the drum. The moving rods are connected to a central hub by respective spokes to form a drum-like structure substantially. The hub is connected to a bush by the interconnection of a roller bearing. The bush is fitted to an eccentric section of the drive shaft. The axis of the bush forms a fixed tilt angle relative to the eccentric axis.

The axis of the bush and the axis of the drive shaft intersect at a point adjacent to the free end of the drum. The distance between the two rotation directions is exactly the same or differs by a very small amount.

In European Patent No. EP 0 968 949 B1, a weft feeding device is described, which has a skewed bushing having a first and a second bushing body. The first, semi-cylindrical bushing body is connected to the drive shaft to define an eccentric section of the shaft. The second hollow bushing body is arranged on the eccentric section and has an outer surface inclined relative to the axis of the rotating shaft.

From European Patent No. EP 0 164 033 B1, a weft yarn storage device is known, in which a rotating reel winds a supply of yarn windings on a stationary drum. The member used to move the winding includes a set of rods which are prevented from rotating relative to the drum, but partially and variably protrude above the periphery of the drum. These components are moved by the rotating shaft of the motor, and the components are arranged on the rotating shaft of the motor by a skew bushing and a rotating bearing. The skew bushing is formed by two hollow bodies, one of the hollow bodies can move relative to the other in the second rotation direction to a position rotated by 180°.

The subject of European Patent No. EP 0 244 511 B1 is a storage device for a weft yarn conveying device, which has a drum, and the winding of the weft yarn is positioned on the outer surface of the drum by a configuration activated by a motor shaft on. The drum is provided with a series of elongated openings, and a plurality of rods are arranged in the openings. The rods are fastened to a bracket, and the bracket is mounted on an eccentric sleeve by a bearing. The sleeve is installed on a floating joint on the motor shaft. The sleeve can be inclined and fixed relative to the axis of the motor shaft.

European Patent No. EP 0424 424 B1 describes a joint arrangement in which the bearings of the cylindrical surface of such sleeves can be adjusted on two sides from a neutral position relative to the drive shaft.

In European Patent No. EP 0 643 004 B1, a bush is described, which is rotatable and arranged at an angle relative to a driving shaft.

From European Patent No. EP 1 796 994 B1, a yarn transfer device with a housing for a braiding machine is known. The casing rotatably supports a driving shaft and supports a static storage body. The storage body has a support rod cage and a separate rod cage on the inside. The separating rod cage has an axis that is skewed and offset relative to the axis of the drive shaft heart. The separating rod cage is rotatably supported on a bearing structure. The bearing structure includes a cylindrical surface designed to be integrated on a free end of the drive shaft. The above configuration allows a narrow storage body, which can be inserted in a large number of circular knitting machines, for example.

The narrow storage body on which the yarn windings are separately arranged can only hold a limited yarn length. The amount of yarn required can vary greatly depending on the product to be produced on the circular knitting machine.

The purpose of the present invention is to develop a yarn feeding device that can hold a large amount of yarn by means of a narrow storage body. The purpose is also to develop a system with a yarn feeding device, wherein the yarn feeding device can be modified by simple components.

This objective is achieved by the characteristics of a yarn feeding device and a system with yarn feeding device described below.

A yarn feeding device for feeding a yarn to a textile machine according to the present invention is provided with a housing and a storage device, and the yarn is drawn from the storage device by the textile machine. The yarn feeding device includes a winding element for winding the yarn onto the storage device, and a driveable rotating shaft with an axis for driving the winding element. The yarn feeding device includes a magnet arrangement for fixing the storage device to the casing. The storage device includes a storage body and a wobble body.

The shaking body and the shaking bearing unit form a shaking unit of the yarn feeding device. The shaking body has a bush and a plurality of conveying elements connected to the bush. The rocking bearing unit includes a bearing bush arranged on the rotating shaft and at least one bearing arranged on the bearing bush for supporting the bush, the bearing bush having a shaking section, the shaking section having a The surface of the skewed cylindrical housing is skewed with respect to the axis of the rotating shaft.

The shaking unit is designed in a separate section to transport multiple yarn windings. The yarn windings are wound on the storage body so that there is a spacing between the yarn windings. Here, the conveying elements can periodically move over an enveloping surface of the storage body through the plurality of elongated openings of the storage body by the shaking bearing unit. By means of the conveying elements, the yarn windings will be conveyed in the direction of one of the pulling ends of the storage body while being spaced apart from each other.

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

The pulling end of the storage body is the outer edge of the storage body, and the yarn is pulled upward toward the textile machine.

The shaking body mounted on the shaking bearing unit implements a shaking movement during the rotation of the rotating shaft, wherein the conveying elements periodically move back and forth in the separation section above the envelope surface of the storage body. Here, the yarn windings wound on the storage body of the storage device are raised and lowered at a specific interval from each other. The shaking motion of the shaking body causes the separation of the yarn windings.

The shaking unit is designed in an accumulation section to push the yarn windings wound on the storage body in the direction of the pulling end of the storage body without a gap between the yarn windings, The accumulation section is adjacent to the separation section and is arranged above a draw-off height of the storage body, and the draw-off height is at the storage body where the yarn is drawn from the storage body The height above the course. The drawing height is arranged above the drawing end of the storage body. The pulling height can vary, for example, according to the quality of the yarn.

There is substantially no separation in the area of the accumulation zone. Instead, the yarn windings wound on the storage body and coming from the separated section push against each other, that is, contact each other. The yarn windings are further pushed by the previous yarn windings.

In a specific embodiment of the yarn feeding device having a loading height sensor, the take-off end (take-off end) defining the accumulation section from the storage body is positioned at the loading height sensor. One of the material height sensors measures the height of the plane.

In one example, the charging height sensor is designed as a resilient element, which is disposed on the storage body in the lower area of the storage body. When a specific amount of yarn is arranged on the charging height sensor, the charging height sensor will be triggered. The measurement plane is, for example, defined as the plane perpendicular to the axis of the rotating shaft at the height of the last yarn winding before the charging height sensor is triggered.

In another example, the charging height sensor is designed as an optical sensor. For example, the plane perpendicular to the axis of the rotating shaft is defined as the measurement plane detected by the sensor.

In a specific embodiment, the accumulation section extends across a height of the storage body from 2 mm to 10 mm. In a specific embodiment, the accumulation section extends across a height of the storage body from 3 mm to 7 mm.

The length of the accumulation section is selected so that 10 to 50 yarn windings in the accumulation section are adjacent to each other. This means that the length of the accumulation section S2 is equivalent to a section of 10 to 50 adjacent yarn windings. Specifically, the length of the accumulation section is equivalent to 15 to 40 adjacent yarn windings.

In a specific embodiment, the shaking unit has a bearing bush, wherein an axis of the skewed cylindrical housing surface of the shaking section of the bearing bush and the axis of the rotating shaft are located at the pull-out end region of the storage body Middle, that is, cross at a point above or below the pulling height.

In a variant, the conveying elements are arranged substantially within the envelope surface of the storage body along the accumulation section. In a specific embodiment of the conveying elements extending along the accumulation section, the conveying elements are inclined inwardly along the accumulation section. In an embodiment of the conveying elements extending along the accumulation section, the conveying elements are configured to be movable to the envelope surface of the storage body. This means that the conveying elements are in brief contact with the yarn windings in the area of the accumulation section during the shaking movement. Here, the yarn windings are slightly lifted. This ensures that adjacent yarn windings are displaced in the accumulation section without overlapping.

In yet another variant, the conveying elements extend substantially along the separation section.

In a specific embodiment, the shaking unit includes a bearing bush, wherein the shaft The axis of the cylindrical outer cover surface of the shaking section of the bearing sleeve intersects the axis of the rotating shaft at a point in the transition area between the separation section and the accumulation section.

A system includes a yarn feeding device and a replacement unit.

The shaking unit or the components of the shaking unit of the replacement unit are designed to be used in a separation section which extends to the drawing height. The separation section of the replacement unit extends across the separation section and the accumulation section of the yarn feeding device. When using this replacement unit, no accumulation section is provided.

In a specific embodiment, the yarn feeding device includes a plurality of conveying elements, which are arranged substantially inside the envelope surface of the storage body along the accumulation section, or extend only along the separation section, and the replacement unit includes a plurality of A delivery element. The conveying elements of the replacement unit extend along the separation section. The conveying elements can move through the openings in the separation section above the envelope surface of the storage body. In a specific embodiment, the replacement unit includes the conveying elements. In a specific embodiment, the replacement unit includes a shaking body combined with the conveying elements.

The yarn feeding device has a bearing bush, and the axis of the skewed cylindrical outer cover surface of the shaking section and the axis of the rotating shaft cross at a point located at the transition between the separating section and the accumulating section In a specific embodiment, the replacement unit includes another bearing bush.

In a variant, the replacement unit includes a bearing bush, and the skewed cylindrical housing surface of the shaking section intersects the axis at a point located above the drawing height. Here, for example, the skew position, that is, the angle between the axis of the skewed cylindrical cover surface and the axis of the rotating shaft, is different from the corresponding one of the yarn feeding device.

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

In an example, the bearing bush of the replacement unit has an axis of the skewed circular housing surface of the shaking section, and the axis of the shaft and the axis of the shaft are located at a point above or below the drawing height of the storage body cross.

In a specific embodiment, the replacement unit only includes the bearing bush.

In a specific embodiment, the replacement unit includes a wobble bearing unit combined with the bearing bush.

A yarn feeding device according to the present invention is designed to feed a yarn to a knitting machine. The knitting machine is a circular knitting machine, or a flat knitting machine, or a warp knitting machine, or the like. An alternative design of a yarn feeding device according to the present invention is for feeding a weft yarn to a shuttle loom.

1: Yarn feeding device

2: chassis

2a: bracket

2b: Drive housing (chassis arm)

2c: Contact plate

3: storage

3a: clamping surface

3b: opening

4: Fastening device

4a: Arrow

4b: Arrow

5: shaft

5a: hollow ventricle

5b: opening

5c: guide opening

6: The first magnet unit

6a: First ring

6b: The first permanent magnet

7: The second magnet unit

7a: second ring

7b: Second permanent magnet

8: winding element

8a: yarn guide element

9: Shake body

9a: Bush

9b: Conveying components of the first example

9c: rebound element

9g: An alternative conveying element of the first example

9z: The conveying element of the replacement unit of the first example

10: The first bearing unit

11: The second bearing unit (shaking bearing unit)

12: Bearing (first bearing)

13: Bearing (second bearing)

14: bearing bush

14a: Cylindrical outer cover surface

14b: Skew cylindrical outer cover surface

14c: Cylindrical outer cover surface

14d: guide groove

15: Bearing

16: Bearing

17: Mating components

18: fixed lock element

20: Brake element

40: Yarn

90: Shake Body

90a: Bush

90b: conveying element

110: Shake the bearing unit

140: The second example of bearing bushing

140b: Skewed cylindrical housing surface

140': Another alternative bearing bushing in the second example

140'b: skewed cylindrical housing surface

141: The bearing bush of the replacement unit of the second example

141b: Skew cylindrical outer cover surface

A: axis

W: yarn winding

FS: Loading height sensor

S1: Separation section

S2: accumulation zone

S10: Separation section

S11: Separation section

B1: axis

B10: axis

B2: axis

B2': axis

P1: intersection

P2: intersection

P2’: intersection

P10: intersection

P20: Crossover point

ME: Measuring plane

U1: Open secant

U2: Tangent around

Um: Surrounding line

The present invention is explained in more detail with reference to the examples schematically shown in the drawings. In the drawings: Fig. 1 is a schematic side view of a yarn feeding device according to the first example of the present invention; Fig. 2 is the main winding element and storage device of the yarn feeding device in Fig. 1 on the axis of the shaft A section in a parallel direction; Figure 3 is a schematic representation of a storage device of the yarn feeding device combined with a plurality of yarn windings, and a profile of a section of the storage device in a direction perpendicular to the axis of the shaft (cut- out) A schematic representation, in which the outline shows a conveying element arranged in an opening of a storage body, and a schematic representation of the movement of the conveying element at two different positions in the area of a separation section; Fig. 4 is a conveying element A schematic representation of a section in a direction parallel to the axis of the shaft, and the movement of the conveying element in the area of an accumulation section, that is, projected on the plane of the contact point between the conveying element and the yarn A schematic representation of the movement; Figure 5 is a schematic representation of a cross-section of the conveying element of the yarn feeding device of the modification of the first example, where the section is parallel to the axis of the rotating shaft; Figure 6 is the yarn feeding device of the first example with replacement The storage device of the yarn feeding device of a system of the unit is combined with a schematic representation of the yarn winding. In the storage device shown, the conveying element is replaced with the conveying element of the replacement unit, and the drawing shows a conveying element in the A schematic representation of the movement at three positions in the area of a separation section; Figure 7 is a schematic representation of the cross section of the conveying element of the replacement unit of the system with the yarn feeding device of the first example, where the cross section is parallel to the axis of the shaft Figure 8 is a schematic representation of a storage device combined with a plurality of yarn windings of the second example of the yarn feeding device, and a conveying element at a position in the area of a separation section, and in the separation section to A schematic representation of the movement at a position of the transition of the accumulation section; Figure 9 is a schematic representation of a cross section of the shaking unit of the yarn feeding device of the second example combined with the bearing bush, where the cross section is parallel to the axis of the rotating shaft; Figure 10 is a schematic representation of a cross section of the conveying element of the yarn feeding device of the second example, where the section is parallel to the axis of the rotating shaft; Figure 11 is a shaking unit and a system of the yarn feeding device of the second example A schematic representation of a cross section of a bearing bush of a replacement unit, wherein the cross section is parallel to the axis of the shaft; and Figure 12 is a shaking unit and an additional replacement unit of a system with a second example of yarn feeding device A schematic representation of a cross section of a bearing bush combination, where the cross section is parallel to the axis of the shaft.

The first example: yarn feeding device and system with yarn feeding device.

The yarn feeding device 1 shown in Figure 1 for feeding a yarn 40 to a textile machine is designed as a storage yarn feeding device. The yarn feeding device 1 includes a housing 2 and a storage device having a storage body 3, and the yarn 40 is drawn from the storage body by the textile machine. The textile machine is, for example, a circular knitting machine.

The casing 2 includes a bracket 2a and a driver casing 2b. The holder 2a is provided with a fastening device for fastening the yarn feeding device 1 to the textile machine, for example to a machine ring of the circular knitting machine. In a specific embodiment, the fastening device is attached to the side end opposite to the bracket 2a. This is indicated by an arrow 4a. In this embodiment, the casing includes a contact plate 2c.

In another specific embodiment, the fastening device is attached to the side end of the bracket 2a instead of the contact plate 2c. This is indicated by an arrow 4b.

The yarn feeding device 1 has a driveable rotating shaft 5 on which the storage body 3 is arranged, wherein the rotating shaft 5 is installed to be rotatable relative to the storage body 3. This means that the storage body 3 can be fixed with a rotating shaft 5. One axis A of the rotating shaft 5 is indicated by a dotted line in the first to third figures. A driver of the rotating shaft 5 not shown in the figure is disposed in the driver housing 2b. The bracket 2a extends along the storage body 3 and parallel to the rotating shaft 5.

Figure 2 shows a section of the yarn feeding device 1 of Figure 1 parallel to the axis A of the rotating shaft 5, which generally includes the winding element and the storage device.

The yarn feeding device 1 includes a magnet configuration, by which the storage device can be fixed on the casing 2 with a storage body 3. The magnet arrangement includes a first magnet unit 6 arranged on the casing 2 and a second magnet unit 7 arranged on the storage body 3 of the storage device. The first magnet unit 6 has a ring or cage 6a formed at the lower end of the driver housing 2b in the figure and coaxial with the rotating shaft 5, and a plurality of first permanent magnets 6b arranged on the ring 6a. The second magnet unit 7 has a second ring or cage 7a designed to be coaxial with the rotating shaft 5, and a plurality of second permanent magnets 7b arranged on the ring 7a.

The permanent magnet 6b of the first ring 6a and the permanent magnet 7b of the second ring 7a are arranged in an operation type, so that there is an attractive force between the two rings 6a and 7a.

In this example, the second magnet unit 7 is designed as a separate element, which is configured to be rotatable on the rotating shaft 5. The second magnet unit 7 is designed to be connected to the storage body 3 of the storage device.

The storage device with the storage body 3 is fixed on the casing 2, especially on the drive casing 2b, by the magnet arrangement with the two magnet units 6 and 7 during operation.

The storage body 3 is designed as a storage drum, which has a main body axis which is parallel to the axis A of the rotating shaft 5 and is substantially consistent with the axis of the rotating shaft.

The storage body 3 has a circular arc at the drawing end, that is, the lower end in the first and second figures, to form a clamping surface 3a. The storage body has a plurality of axially extending openings 3b on its periphery. This means that the opening 3b extends parallel to the axis A of the rotating shaft 5 in an envelope surface of the storage body 3.

The storage body 3 is provided with a charging height sensor FS, which is arranged in the lower part of the storage body 3.

The charging height sensor FS includes a rebound element and a switching element. If the resilient element is pushed in the direction of the axis A by the wound yarn winding W and triggers the switching element, the charging height sensor FS is activated. In an example, the charging height sensor FS includes a Hall sensor arranged in the housing arm 2b, which is not shown in the drawing.

When the loading height sensor FS is activated, the plane where the outermost yarn winding is arranged represents the measuring plane ME of the loading height sensor FS.

A winding element 8 is arranged at the winding end of the storage body 3 at the top of FIGS. 1 to 3 for winding the yarn 40 onto the storage body 3 of the storage device. The yarn 40 is wound onto the storage body 3 to form windings, which are called yarns or yarn windings.

The winding element 8 is arranged on the rotating shaft 5. The winding element 8 can be fixed on the rotating shaft 5 and is designed to be driven by the rotating 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 to be coaxial with the rotating shaft 5 and in a disk shape. In this example, the winding element 8 is designed as a conical disc. A yarn guide element 8a is formed on the periphery of the winding element 8.

The winding element 8 is disposed on the rotating shaft 5 so as to be movable in the axial direction.

The rotating shaft 5 is designed as a hollow rotating shaft with a cylindrical hollow chamber 5a in its upper section. The hollow chamber 5a ends at a height in the area of the winding element 8. Shaft 5 includes the hollow The chamber 5a has an opening 5b. The unmarked yarn 40 in Figure 2 is guided through the hollow chamber 5a and the opening 5b to the winding element 8 during operation. The winding element 8 includes a guiding channel 8b, which ends at the yarn guiding element 8a.

The winding element 8 extends into the opening 5b of the rotating shaft 5 with its guiding channel 8b. In the area of the opening 5b of the rotating shaft 5 with a groove extending in the axial direction, the winding element 8 can be displaced in the axial direction at least along a cleaning section L and guided in the radial direction.

The yarn feeding device 1 has a bearing device, which rotatably supports the rotating shaft 5 relative to the second magnet unit 7 and the storage device. The bearing device is arranged on the rotating shaft 5 and can be displaced in the axial direction.

In addition to the storage body 3, the storage device further includes a shaking body 9 which is arranged inside the storage body 3. The shaking body 9 includes a bushing 9a, a plurality of conveying elements 9b connected to the bushing 9a, and a resilient element 9c. The conveying element 9b is arranged in the axially extending opening 3b of the storage body 3.

The resilient element 9c is designed as a foamed material body, which extends annularly around the rotating shaft 5. The resilient element 9c is connected to the storage body 3 through a form-fitting connection, wherein the shaking body 9 can make a small movement relative to the storage body 3 due to the elasticity of the resilient element 9c.

The bearing device includes a first bearing unit 10 and a second bearing unit called a rocking bearing unit 11 hereinafter. The first bearing unit rotatably supports the rotating shaft 5 relative to the storage body 3 combined with the second magnet unit 7 , The second bearing unit rotatably supports the rotating shaft 5 relative to the shaking body 9.

In this example, the rotating shaft 5 extends through the storage device. The first bearing unit 10 includes a first bearing 12 designed as a ball bearing, and a second bearing 13 designed as a ball bearing. The first bearing 12 is configured to rotatably support the rotating shaft 5 relative to the second magnet unit 7 on the rotating shaft 5 under the winding element 8 and above the storage body 3. The second bearing 13 is configured to rotatably support the rotating shaft 5 with respect to the storage body 3 at the lower end of the storage body 3 and outside the rotating shaft 5, that is, in the region of the lower end.

The rocking bearing unit 11 is connected to the bearing 12 for the second magnet unit 7 in the direction toward the outer end of the rotating shaft 5 at the bottom of FIG. 2. The rocking bearing unit is located between the bearings 12 and 13 of the first bearing unit 10. The rocking bearing unit 11 includes a bearing bush 14 which is arranged on the rotating shaft 5. The bearing bush is provided with a plurality of sections having outer cover surfaces 14a, 14c and cylindrical with respect to the axis A of the rotating shaft 5, and a It has a skewed cylindrical outer cover surface 14b, that is, a central shaking section that is cylindrical and skewed to the shaft A. This means that in the shaking section, one of the axis B1 of the outer cover surface 14b is skewed, specifically, it makes an acute angle with the axis A of the rotating shaft 5. The rocking bearing unit 11 also has two bearings 15 and 16, which are arranged close to each other and designed as ball bearings, which are arranged on the rocking section of the bearing bush 14.

The bearing bush 14 is designed to have multiple parts in this example. A part of the bearing bush 14 includes an upper section with a cylindrical housing surface 14a and a sway section with a skewed cylindrical housing surface 14b. The part with the shaking section that supports the bearings 15, 16 and causes the shaking movement of the shaking cylinder 9 is also called a skew hub. The other part, also called a clamping bush, includes a lower section with a cylindrical outer cover surface 14c. The skew hub and the clamping bush can be connected to each other by a form-fitting connection.

The two bearings 15 and 16 are arranged on the bearing bush 14 and therefore in the shaking section of the bearing bush 14 on the shaft 5. In this example, the bearings 15 and 16 are firmly connected to the shaking body 9. These bearings are injected onto the bush 9a, for example. The shaking body 9 is configured to rotate on the two bearings 15 and 16 and therefore shake on the rotating shaft 5.

The rocking bearing unit 11 for the rocking body 9 is configured to be axially displaced on the rotating shaft 5 and guided in the radial direction. The rocking bearing unit includes a matching element 17 which is arranged on the bearing bush 14 and the rotating shaft 5. The matching element is designed as an elongated, cubic element.

The bearing bush 14 has a guide groove 14d on its inner diameter, and the mating element 17 is arranged in the guide groove. Here, the mating element 17 is configured in the guide by means of form-fitting engagement Lead into the groove 14d. The rotating shaft 5 has a corresponding guide opening 5c extending in the axial direction. In this guide opening 5c, the mating element is guided in the radial direction.

The yarn feeding device 1 includes a locking device for tensioning the bearing device and the winding element 8. The locking device has a locking element 18 which is arranged at the bottom of the figure and at the outer end of the shaft 5. The locking element 18 is connected to the rotating shaft 5 by a thread. This means that the locking element 18 is designed to be displaced on the rotating shaft 5 by screw connection.

The second bearing 13 of the first bearing unit 10 is arranged on the locking element 18. The second bearing 13 is formed to allow the locking element 18 to be displaced on the rotating shaft 5 through the threaded connection. The storage body 3 is rotatably mounted on the second bearing 13.

By fixing the second magnet unit 7 to the first magnet unit 6, the storage body 3 connected to the second magnet unit 7 is fixed to the casing 2. With the first bearing unit 10, the rotatable bearing can combine a fixed storage body 3 with a rotating shaft 5. The shaking body 9 arranged inside the storage body 3 implements a shaking motion on the bearing bush 14 by the rotation of the rotating shaft 5.

The shaking body 9 and the shaking bearing unit 11 form a shaking unit.

The function of the shaking unit is explained by the schematic representation of the storage device of the yarn feeding device 1 on the right side of Fig. 3 combined with the yarn winding W.

The shaking unit is designed in an upper separation section S1 to transport a plurality of yarn windings W. These yarn windings are wound on the storage body 3 so that there is a spacing between the yarn windings. For this purpose, the conveying element 9b can be moved through the opening 3b through an envelope surface of the storage body 3. The shaking unit is also designed in an accumulation section S2, which is connected to the separation section S1 to push the yarn winding W wound on the storage body 3 to one of the pulling heights of the storage body 3 and so on. There is no interval between yarn windings. The drawing height is at the height of the measuring plane ME of the loading height sensor FS.

Figure 3 shows on the left side the yarn feeding device 1 of Figure 1 on the axis A of the shaft 5 A profile schematic view of a cross section in the vertical direction, wherein the cross section shows a conveying element 9 b disposed in an opening 3 b of the storage body 3. In Figure 3, below the section, there is a schematic representation, that is, a projection of the movement of the conveying element 9b at two different positions in the area of the separation section S1, namely an upper and a lower position. The conveying element 9b implements a projected circular motion in the area of the opening 3b, that is, around the opening secant U1 formed by an opening 3b and a surrounding tangent U2 around a storage body 3 Around the line Um. In this example, the circular motion in the upper position is greater than that in the lower position.

The size of the circular motion and the change of the size are determined by the surface of the outer cover of the bearing bush 14 in the shaking section. In this example, an axis B1 of the skewed cylindrical cover surface of the shaking section intersects with the axis A of the rotating shaft 5 at a point P1 located below the drawing height of the storage body 3.

Figure 4 shows one of the conveying elements 9b of this example on the left. The conveying element 9b is inclined inward in the accumulation section S2. In this example where the conveying element 9b extends along the accumulation section S2 across the separation section S1, the conveying element only moves within the envelope surface of the storage body 3. This is shown on the right in Figure 4 by a schematic representation of the movement of the conveying element.

During the operation of the yarn feeding device 1 with the housing 2, a yarn 40 is conveyed to a textile machine, wherein the yarn 40 is drawn from the storage device by the textile machine. The yarn 40 is wound onto the storage device by the winding element 8. The winding element 8 is driven by the driven shaft 5.

The storage device is fixed to the casing 2 by the magnet configuration, a first magnet unit 6 on the casing 2 and a second magnet unit 7 on the storage device. The storage device includes a storage body 3 and a shaking body 9.

With the shaking unit composed of the shaking body 9 and the shaking bearing unit 11, the yarn winding W wound on the storage body 3 in the separation section S1 is transported with a gap between them.

With the shaking unit, the wound and separated yarn winding W is adjacent to the separation section S1 In the subsequent accumulation section S2, it is also pushed toward the lower edge of the storage body 3.

Here, the oblique conveying element 9b only moves above the envelope surface of the storage body 3 along the separation section S1 through the opening 3b of the storage body 3. The periphery of the envelope surface, that is, an envelope curve, is formed by a polygon formed by the section of the surrounding tangent line U2 and the opening secant line U1 (see Fig. 3).

The length of the accumulation section S2 is selected so that 10 to 30 yarn windings W are adjacent to each other in the accumulation section S2. In this example, there are approximately 20 yarn windings W in the accumulation section S2.

In a variant, the shaking unit is designed so that at least in a part of the accumulation section S2, the yarn windings are lifted by another selected plurality of conveying elements. The length of the accumulation section S2 is selected so that 20 to 35 yarn windings are adjacent to each other in the accumulation section S2.

Figure 5 shows one of the conveying elements 9g in a modification of the first example. The conveying element 9b extends along the separation section S1. This means that the conveying element 9b extends only along the separation section S1 from the top. The conveying element 9b is designed to be shorter than the opening 3b, wherein the opening 3b of the storage body 3 in the accumulation section S2 is empty.

A system having the yarn feeding device 1 of the first example includes a replacement unit. The replacement unit has a shaking unit, or a plurality of components of the shaking unit, for extending to a separation section S10 of the drawing height of the storage body 3.

Please refer to the schematic representation of the storage device of a yarn feeding device 1 combined with the yarn winding W on the right side of FIG. 6 similar to FIG. 3 to explain the function of the shaking unit of the replacement unit. The shaking unit is designed to operate in the separation section S10 to transport the yarn winding W wound on the storage body 3 with an interval between the yarn windings.

Figure 7 shows one of the transport elements 9z of the replacement unit. The conveying element 9z extends along the separation section S10.

Figure 6 is similar to Figure 3 on its left side, showing one of the conveying elements 9z in three different positions in the separation section S10, namely, an upper, a middle and a lower position. A summary representation of movement. In this example, the circular movement of the conveying element decreases from top to bottom.

The size of the circular movement and the change of the size are determined by the (unchanged) outer cover surface of the bearing bush 14 in the shaking section. As mentioned above, the axis B1 of the cylindrical cover surface of the shaking section is aligned with the axis A of the rotating shaft 5 in the region of the pull-out end of the storage body 3, particularly above or below the pull-out height of the storage body 3. Cross at point P1.

In a variant, the replacement unit includes a conveying element 9z. For replacement, the conveying element 9b is removed from the shaking body 9 and the conveying element 9z of the replacement unit is attached to the shaking body 9.

In yet another variant, the replacement unit includes a shaking body 9 having a conveying element 9z. For replacement, the shaking body 9 is replaced with another alternative shaking body.

In yet another variant, the replacement unit includes a shaking unit having a shaking body 9 with a conveying element 9z. For replacement, the shaking unit of the yarn feeding device 1 is replaced with the shaking unit of the replacement unit.

Second example: yarn feeding device and system with yarn feeding device.

Except for the features described below, the second example is equivalent to the first example.

Fig. 8 shows the function of the shaking unit of the second example similarly to Figs. 3 and 6.

Figure 9 shows a schematic representation of a shaking unit 90 of the second example combined with a bearing bush 140, and Figure 10 shows a conveying element 90b of the second example.

The schematic representation of the movement of a conveying element 90b at an upper position in the separation section S1 and at a lower position in the transition from the separation section S1 to the accumulation section S2 shown in FIG. 8 shows conveying The circular movement of the element 90b in the opening 3b of the storage body 3 is also reduced from top to bottom.

The size of the circular motion and the change of the size are determined by the skewed cylindrical housing surface 140b of the bearing bush 140 in the shaking section. In this example, the skew of the shaking section An axis B2 of the cylindrical housing surface 140b intersects the axis A of the rotating shaft 5 at a point P2 located at the transition between the separation section S1 and the accumulation section S2.

The shaking unit shown in FIG. 9 shows a shaking body 90 having a bushing 90a and a conveying element 90b, and a shaking bearing unit 110 having a bearing bushing 140 and bearings 15 and 16. The rebound element is not shown.

The axis B2 of the skewed cylindrical housing surface 140b is at an angle α of 1° to 5° with respect to the axis A of the rotating shaft 5. Preferably, the angle α is 2° to 3°.

The position of the intersection P2 between the axis B2 and the axis A will determine the starting point of the accumulation section S2 adjacent to the separation section S1. The length of the accumulation section S2 is 3 mm to 20 mm, and the length of the separation section S1 is 30 mm to 70 mm.

The length of the accumulation section S2 is, for example, 3% to 35% of the separation section S1.

In this example, the angle α is approximately 2.3°, the length of the separation section S1 is approximately 40 mm, and the length of the accumulation section S2 is approximately 10 mm.

A system with a second example of the yarn feeding device 1 includes a replacement unit. The replacement unit in a variant includes a shaking unit combined with a bearing bush 140' shown in Figure 11.

The axis B2' of the skewed cylindrical cover surface 140'b is at a slightly larger angle α'. This will cause a slightly larger yarn winding to separate.

The length of the accumulation section S2 of the replacement unit is slightly smaller than that of the yarn feeding device 1 of the second example, that is, the accumulation section S2 is slightly shorter.

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

By using the replacement unit, the separation and number of yarn windings on the storage body 3 can be changed.

In a variant, the replacement unit only includes the bearing bush 140' combined with a skewed cylinder -Shaped outer cover surface 140'b.

In a variant, the angle α'of the replacement unit is smaller than that of the yarn feeding device 1. In another variant, the accumulation section S2 of the replacement unit has a larger length than the yarn feeding device 1.

In yet another variant, the replacement unit includes a wobble bearing unit combined with a bearing bush 141 shown in Figure 12.

The bearing bushing 141 is designed to be used in a separation section S11, which extends up to the drawing height of the storage body 3, that is, for separation without an accumulation section.

One axis B10 of the skewed cylindrical cover surface 141b is at an angle α and intersects with the axis A of the rotating shaft 5 at the drawing height, or alternatively below the drawing height, at a point P10.

The angle α and the intersection point P10 are equivalent to those of the first example and the first modification, for example.

By using the replacement unit, the yarn feeding device 1 can be adjusted to separate along the storage body.

In a variant, the replacement unit only includes a bearing bush 141 combined with a skewed cylindrical housing surface 141b.

3‧‧‧Storage

3b‧‧‧Open

9b‧‧‧Conveying element of the first example

A‧‧‧Axis

W‧‧‧Yarn winding

S1‧‧‧Separation section

S2‧‧‧Accumulation section

B1‧‧‧Axis

P1‧‧‧Cross point

ME‧‧‧Measurement plane

U1‧‧‧Open secant

U2‧‧‧Around Tangent

Um‧‧‧around line

Claims (10)

A yarn feeding device (1) for feeding a yarn (40) to a textile machine has a housing (2), a storage device, a winding element (8), a driveable shaft (5), and a magnet Configured, the yarn (40) is pulled from the storage device by the textile machine, the winding element is used to wind the yarn (40) onto the storage device, and the driveable shaft has an axis (A) And for driving the winding element (8), the magnet is configured to fix the storage device to the casing (2), wherein the storage device has a storage body (3) and a shaking body (9), wherein A shaking unit is formed by the shaking body (9) of the storage device and a shaking bearing unit (11), wherein the shaking body (9) includes a bushing (9a) and connected to the bushing (9a) A plurality of conveying elements (9b), the conveying elements are arranged in a plurality of axially extending openings (3b) of the storage body (3), wherein the rocking bearing unit (11) includes one arranged on the rotating shaft (5) The bearing bush (14, 140, 140') is combined with at least one shaking section, the at least one shaking section has a skewed cylindrical housing surface (14b), and the axis (B1, B2) of the skewed cylindrical housing surface is opposite The axis (A) of the rotating shaft (5) extends obliquely, and the sway bearing unit includes at least one bearing arranged on the bearing bush (14, 140, 140') for supporting the bush (9a) (15, 16), wherein the shaking unit is designed in a separate section (S1) to transport a plurality of yarn windings (W), and the yarn windings are wound on the storage body (3) so that the yarn windings There is a gap between, wherein the conveying elements (9b, 9g, 9z) can be moved out through the openings (3b) above an envelope surface of the storage body (3), characterized in that: The shaking unit is designed in an accumulation section (S2) to push the yarn windings (W) wound on the storage body (3) toward the lower edge of the storage body (3) and push the yarns There is no interval between the windings, and the accumulation section is adjacent to the separation section (S1) and is arranged above a drawing height of the storage body (3). The yarn feeding device (1) described in item 1 of the scope of patent application has a loading height sensor (FS), wherein the pulling height is arranged on the loading height sensor (FS) The height of a measurement plane (ME). The yarn feeding device (1) described in item 1 or item 2 of the scope of patent application, wherein a length of the accumulation section (S2) is equivalent to a section of 10 to 50 adjacent yarn windings (W). The yarn feeding device (1) described in item 1 or item 2 of the scope of patent application, wherein the axis (B1) of the skewed cylindrical housing surface (14b) of the shaking section of the bearing bush (14) ) Is intersected with the axis (A) of the rotating shaft (5) at a point (P1) located above or below the drawing height of the storage body, and the conveying elements (9b) are in the accumulation section (S2) ) Inclined inward. The yarn feeding device (1) described in item 1 or item 2 of the scope of patent application, wherein the axis (B1) of the skewed cylindrical housing surface (14b) of the shaking section of the bearing bush (14) ) Intersects the axis (A) of the rotating shaft (5) at a point (P1) in the lower area of the storage body (3), and the conveying elements (9g) are substantially along the The separation section (S1) extends. The yarn feeding device (1) described in item 1 or item 2 of the scope of patent application, wherein the axis (B2) of the skewed cylindrical housing surface (14b) of the shaking section of the bearing bush (140) ) Intersects the axis (A) of the rotating shaft (5) at a point (P2) in a transition region between the separation section (S1) and the accumulation section (S2). A system with a yarn feeding device (1) as described in any one of the first to sixth items of the scope of patent application, characterized by a replacement unit, wherein one of the replacement units is a shaking unit, Or the element of the shaking unit is designed to be used in a separation section (S10), which extends to the drawing height of the storage body (3) or below. The system with yarn feeding device (1) as described in item 7 of the scope of patent application, wherein the replacement unit includes a plurality of conveying elements (9z) extending along the separation section (S10). The system with the yarn feeding device (1) described in item 7 of the scope of patent application, wherein the replacement unit has a bearing bush (141) combined with an axis (B10) of the skewed cylindrical outer cover surface of the shaking section ), which crosses the axis (A) of the rotating shaft (5) at a point (P10) located at or below the drawing height of the storage body (3). A system with a yarn feeding device (1) as described in the sixth item of the scope of patent application, characterized in that the replacement unit has a bearing bush (140') combined with the skewed cylindrical outer cover surface (140') of the shaking section b) an axis (B2'), which and the axis of the shaft (5) are at an alternative point in a transition area between a separation section (S1) and an accumulation section (S2) ( P2') cross.

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