CN105984749B

CN105984749B - Textile machine for continuously feeding and winding a yarn on a conical winding bobbin

Info

Publication number: CN105984749B
Application number: CN201610148657.1A
Authority: CN
Inventors: P.斯克瓦里; M.莫拉维
Original assignee: Rieter CZ sro
Current assignee: Rieter CZ sro
Priority date: 2015-03-17
Filing date: 2016-03-16
Publication date: 2020-04-10
Anticipated expiration: 2036-03-16
Also published as: CN105984749A; CZ306286B6; DE102016104601A1; CZ2015189A3

Abstract

The invention relates to a textile machine for continuously transporting a finished yarn and winding it on a conical cross-wound bobbin, comprising a traversing device (3) with its own independent drive, a winding roller (5) with its own independent drive and a pair of oscillating bobbin arms (4) with means for rotatably mounting the end of the bobbin (2) bobbin, the traversing device (3) and the winding roller (5) being mounted on the machine frame at an angle (α), said angle (α) being half the taper of the winding bobbin (2), the longitudinal axis (20) of the winding bobbin (2) being horizontal.

Description

Textile machine for continuously feeding and winding a yarn on a conical winding bobbin

Technical Field

The invention relates to a textile machine for continuously feeding a finished yarn and winding it on a conical cross-wound bobbin, comprising a dispensing device with its own independent drive, a winding roller with its own independent drive and a pair of oscillating bobbin arms with means for rotatably mounting the ends of the bobbin tubes.

Background

At present, on textile machines that continuously feed the already made yarn, for example on free ends or air jet spinning machines that continuously feed the already made yarn, winding units for winding the yarn on conical cross-wound bobbins are used at each of the working units in a row of working units arranged adjacent to each other. These winding units comprise a driven winding roller which rotates, wherein the bobbin or tube to be wound is positioned with its periphery on the winding roller. These reels or bobbins are thus driven and the yarn continuously produced on the machine is wound on them. The formed yarn is drawn from the yarn manufacturing unit by a yarn draw-off mechanism and is further guided through a compensator of the current difference between the winding and draw-off speed of the yarn, and through a sensor sensing the quality and/or presence or absence of the yarn, until reaching the winding unit, where it is continuously wound.

At each station of the textile machine, which continuously transports the already made yarn, the cone bobbin or the bobbin for winding the cone bobbin is rotatably mounted in an oblique direction between the oblique arms of the winding unit, wherein the arms are provided with rotatable discs for rotatably mounting the bobbin between the arms. By raising and lowering the arm, not only is the pressure of the bobbin or tube on the winding roller regulated, but the bobbin or tube is also arranged on the winding roller and moved away from it in this way, which is one of the possible ways of connecting or otherwise disconnecting the rotational drive of the bobbin or tube. The inclination (slope) of the mounting of the bobbin in the arm is equal to half the conicity of the winding bobbin.

In order to enable winding of the yarn on a textile machine that continuously transports the already made yarn along the entire length of the bobbin or tube, the winding unit comprises traversing means for traversing the winding yarn over the entire width of the winding bobbin or tube. The traverse device comprises a reversibly movable yarn guide, through which the yarn passes before being wound onto the bobbin and which is connected to a drive controlled by a control mechanism.

On machines that continuously transport the finished yarn, a winding unit of such an embodiment is generally used in which the winding rollers, i.e. the winding rollers of the stations, are mounted on a common winding shaft that is continuous along the entire length of the machine, i.e. passes through all the stations on the side of the textile machine that continuously transports the finished yarn. For each station, i.e. for each winding unit, only one winding roller is arranged on such a winding shaft. The longitudinal axis of such a winding roller is therefore defined by the longitudinal axis of the continuous winding shaft, which is horizontal, which means that the longitudinal axis of the winding roller is likewise horizontal. A consequence of arranging the winding roller horizontally and of arranging the winding bobbin obliquely on the textile machine that continuously transports the already made yarn is that a tapered package (package) of the continuously made and transported yarn is formed obliquely with respect to the vertical on the bobbin or bobbin, i.e. the front side of the package is oblique with respect to the vertical, which means that as the diameter of the winding bobbin becomes larger, the wound yarn tends to slip during the traverse towards the front side of the bobbin with a smaller diameter, which leads to a risk of defective winding of the continuously made and transported yarn. Another disadvantage of the background art textile machines that continuously feed the already produced yarn is that, from the point of view of the building area, relatively large spaces are required for arranging the winding units in the width direction of the machine at the stations. Another drawback of the background art textile machines that continuously deliver already made yarn is the need to rebuild the winding unit that continuously delivers already made yarn if it is necessary to change the conicity of the winding reel, or if it is necessary to switch from winding on a conical reel to winding on a cylindrical reel and vice versa, which in many cases is not possible at all on machines that continuously deliver already made yarn.

It is an object of the present invention to obviate or at least minimise the disadvantages of the background art.

Disclosure of Invention

The object of the invention is achieved by a textile machine for continuously feeding a finished yarn and winding it on a conical cross-wound bobbin, whose principle consists in that both the traversing device and the winding roller are mounted obliquely on the machine frame at an angle which is half the taper of the winding bobbin, the longitudinal axis of which is horizontal.

The advantage of this solution is that the front side of the conical cross-wound package wound on the textile machine that continuously delivers the finished yarn is vertical towards the horizontal, which has a significant positive effect on the construction of the conical package directly on the machine, preventing the yarn from slipping (sliding) towards the front side of the package with the smaller diameter during yarn distribution. Another advantage of this solution for machines that continuously feed the already produced yarn is the narrow building area of the winding unit on this type of machine. In this solution, it is furthermore advantageous that the arm for holding the reels can be substantially identical in construction to the replaceable clamping disk for the particular bobbin and be adjusted in the same way for winding conical reels and for winding cylindrical reels.

In a preferred embodiment, the yarn distributor and the bobbin drive are mounted on a common frame in mutually defined and constant positions, which is mounted, if necessary, oscillatingly on the machine frame, in such a way that the traverse and winding modules, i.e. the modules for traversing the yarn and for driving the bobbins, have independent drives and have the option of independently setting the longitudinal inclination of the winding roller and the traverse device with respect to the horizontally arranged arms of the bobbins with horizontal longitudinal axes of the belt. Another advantage of this solution is that it is relatively simple to rebuild the winding unit for winding conical bobbins into a winding unit for winding cylindrical bobbins.

Drawings

The invention is illustrated schematically in the drawings, in which fig. 1 shows a front view of a station for continuously feeding a yarn into a winding unit for producing the yarn, fig. 2 shows a front detail of the structure of the winding unit, and fig. 3 shows a top view of the structure of the winding unit shown in fig. 2.

Detailed Description

The invention will describe an embodiment of a textile machine which continuously feeds the finished yarn in a winding unit to wind the yarn on a conical cross-wound bobbin.

The textile machine comprises at least one row of identical stations arranged adjacent to each other. Each station includes a device for continuously producing yarn 0. From the apparatus for continuously manufacturing the yarn 0, the yarn 0 is continuously drawn by the drawing mechanism of the yarn 0, whereby the yarn is further guided to the winding unit 1, where the yarn is continuously wound on the conical cross-winding bobbin 2. Before being wound on the package 2, the yarn 0 passes through a traverse guide 30 of a traverse device (traversing) 3 of the yarn 0, and traverses the yarn 0 along the package width 2, thereby forming a cross-wound package (package) in conjunction with the rotation of the package 2. The traverse guide 30 is directly reciprocally movable in the traverse device 3 along the package 2 or more specifically along the winding roller 5 (which is described below), wherein the traverse guide 30 is connected to a separate drive of the traverse device 3 and to the station and/or a section of the station and/or to a control device of the machine.

In order to make it possible to wind the yarn 0 formed by the continuous feed on the conical cross-wound bobbin 2, compensators (not shown) of different circumferential speeds of the yarn 0 are provided at both ends of the conical bobbin 2 in the path of the yarn 0 at the front side of the winding unit 1, which reach different circumferential speeds, i.e. different lengths of the yarn 0 that can be wound onto the bobbin 2, for the same number of revolutions of the bobbin 1 per unit time, since each of the two ends of the conical bobbin 2 has a different diameter, this periodic fluctuation of the circumferential speed of the conical bobbin 2 is compensated by the compensator (not shown) which forms and releases one turn of the yarn 0 at each station before the yarn 0 is wound onto the bobbin 2.

The reel 2 is rotatably mounted between two arms 4, said two arms 4 being mounted on the frame of the machine or of the station in a vertically upwardly and downwardly tiltable manner, wherein in addition to this at least one of the arms 4 is mounted on the frame of the machine or of the station in a horizontally reversibly tiltable manner away from the second arm 4, which is important for opening the arms 4 when changing reels 2 with empty bobbins. The package 2 is rotatably mounted between the two arms 4 about its horizontal longitudinal axis 20.

During winding of the yarn 0 onto the package 2, the arms 4 are inclined downwards, i.e. to their lower position, and the package 2 abuts with its surface at its lower part against the surface of the winding roller 5, said winding roller 5 being mounted obliquely together with the dispensing device 3 in the common holder 6 in a mutually defined and constant position.

The winding roller 5 has an independent drive using an electric motor built into the inner space of the hollow rotating cylindrical housing of the winding roller 5. Meanwhile, the hollow rotating cylindrical shell of the winding roller 5 constitutes the rotor of the independent drive of the winding roller 5 and its outer surface is in contact with the bobbin 2 being driven, driving the bobbin 2 in a rolling manner. The individual drives of the winding roller 5 are coupled to an energy source and to the control mechanisms of the workstations and/or of the machine sections and/or of the entire machine.

The common holder 6 is mounted on the frame of the machine or of the station, obliquely in the longitudinal direction with respect to the horizontal direction of the longitudinal axis 20 of the bobbin 2 mounted in the arm 4, i.e. the longitudinal inclination of the longitudinal axis 50 of the winding roller 5 with respect to the longitudinal axis 20 of the bobbin 2 in the arm 4 reaches an angle α, in which the magnitude of the angle α corresponds to half the taper of the winding bobbin 2. the auxiliary compensating device 7 is mounted exchangeably on the common holder 6 on the front side of the distribution guide 30 of the yarn 0 over the entire width of the yarn 0 distribution, the auxiliary compensating device 7 has a front edge 70 of circular shape in the direction of the width of the yarn 0 distribution, i.e. in the direction of the reversible rectilinear movement of the distribution guide 30 of the yarn 0.

In the exemplary embodiment shown in fig. 2 and 3, the common holder 6 is mounted on the frame of the machine or station swingably adjustable with respect to the horizontal longitudinal axis 20 of the package 2, thus making it possible to set the desired inclination of the longitudinal axis 50 of the winding roller 5 with respect to the longitudinal axis 20 of the package 2, i.e. the desired size of the angle α of inclination of the longitudinal axis 50 of the winding roller 5 with respect to the longitudinal axis 20 of the package 2, and thus also the size of the taper of the winding package 2, without having to change the setting of the arm 4. the setting inclination of the holder 6 is lockable.

In the exemplary embodiment in fig. 2, the common holder 6 is provided with a pair of

projections

60, 61 on its underside, whereby it is mounted swingably adjustable on the frame X of the machine or station with respect to the horizontal longitudinal axis 20 of the package 2, for example by means of a pair of inclined grooves X0 in the frame X.

In an exemplary embodiment, not shown, such swingable adjustment of the common holder 6 with respect to the horizontal longitudinal axis 20 of the package 2 is implemented as a pair of through holes in the frame X, one of which is formed by a through groove shaped as an arc of a circle, the centre of which is located at the centre of the other hole formed by a through cylindrical hole.

In the exemplary embodiment shown in fig. 2, the oscillating mounting of the common holder 6 with respect to the horizontal longitudinal axis 20 of the package 2 is achieved by a pair of through-going grooves X0 in the frame X, wherein the grooves X0 are straight or curved and are inclined towards or away from each other, so that they enable setting the inclination of the common holder 6, i.e. of the traversing and winding modules, to the desired inclination direction (angle α) of the longitudinal axis 50 of the winding roller 5 with respect to the horizontal longitudinal axis 20 of the package 2.

For winding reels of the corresponding type, for example for winding cylindrical reels, conical reels with a 4 ° 20' taper, the

projections

60, 61 and their counterparts in the form of not shown grooves or grooves X0 in the frame X determine the exact inclination of the holder 6 in a specific position with respect to the horizontal longitudinal axis 20 of the reel 2.

As mentioned above, the auxiliary compensating device 7 is exchangeably mounted on the common holder 6 on the front side of the traverse guide 30 of the yarn, the auxiliary compensating device 7 having a profile which is convexly symmetrical against the direction of movement of the yarn in the width direction of the yarn traversing across the width of the bobbin 2 in the longitudinal direction of the yarn, the auxiliary compensating device 7 being formed in the embodiment shown by sheet metal with a shaped front edge 70, and in a not shown embodiment it being formed by a shaped wire or the like, the front edge 70 of the auxiliary compensating device 7 having a shape profile suitable for winding a cylindrical or conical bobbin on a winding unit according to the invention, the profile of the front edge 70 of the auxiliary compensating device 7 being different for different angles α in order to wind the yarn during winding for different sizes of angles α of inclination of the longitudinal axis 50 of the winding roller 5 relative to the horizontal longitudinal axis 20 of the bobbin 2 and to optimize the geometry of properly drawing the yarn.

INDUSTRIAL APPLICABILITY

The invention is suitable for the textile industry in the construction of textile machines.

Claims

1. A textile machine for continuously transporting a finished yarn and winding it on a conical cross-wound bobbin, comprising a traversing device with its own independent drive, a winding roller with its own independent drive and a pair of oscillating bobbin arms with means for rotatably mounting the end of a bobbin tube, characterized in that the traversing device (3) and the winding roller (5) are each mounted obliquely on the machine frame at an angle (α), the angle (α) representing half the angle of the taper of the winding bobbin (2), the longitudinal axis (20) of the winding bobbin (2) being horizontal, wherein the winding roller (5) is in contact with the winding bobbin (2) in order to drive the winding bobbin (2) by rolling.

2. Textile machine according to claim 1, characterized in that the traverse device (3) and the winding roller (5) are mounted in a mutually defined and constant position in a common holder (6), wherein the common holder (6) is mounted on the machine frame.

3. The textile machine according to claim 2, wherein the common holder (6) is mounted on the frame (X) of the machine so as to be swingably adjustable with respect to the horizontal longitudinal axis (20) of the package (2) in the direction of variation of the inclination angle (α) of the longitudinal axis (50) of the winding roller (5) with respect to the horizontal longitudinal axis (20) of the package (2) in the arm (4).

4. Textile machine according to claim 3, characterized in that the common holder (6) is provided with a pair of projections (60, 61) on its underside, whereby it is mounted on the frame (X) of the machine or station swingably adjustable with respect to the horizontal longitudinal axis (20) of the bobbin (2).

5. Textile machine according to claim 3, characterized in that there is a pair of through-holes in the frame (X), wherein one of the through-holes is formed by a through-groove shaped as a segment of a circular arc, the centre of which is located at the centre of a second hole formed by a through-cylindrical hole, and that the common holder (6) is mounted on these through-holes so as to be swingably adjustable relative to the horizontal longitudinal axis (20) of the package (2).

6. Textile machine according to claim 3, characterized in that a pair of through-going grooves (X0) is formed in the frame (X), wherein the grooves (X0) are straight or curved and are inclined towards or away from each other, and the common holder (6) is mounted on them swingably adjustable relative to the horizontal longitudinal axis (20) of the package (2).

7. Textile machine according to one of claims 2 to 6, characterized in that on the common holder (6), on the front side of the traverse guide (30) of the yarn (0), an auxiliary compensation device (7) is exchangeably arranged, which has a profiled front edge (70) in the width direction of the traverse.

8. The textile machine according to claim 7, wherein the front edge (70) of the auxiliary compensation device (7) has a different profile shape for different magnitudes of the inclination angle (α) of the longitudinal axis (50) of the winding roller (5) with respect to the horizontal longitudinal axis (20) of the package (2).

9. Textile machine according to claim 8, characterized in that the front edge (70) of the auxiliary compensation device (7) for winding the cone bobbin has an asymmetric profile.

10. Textile machine according to claim 8, characterized in that the front edge (70) of the auxiliary compensation device (7) for winding the cone bobbin has a symmetrical profile.

11. The textile machine according to claim 2, characterized in that the winding roller (5) is provided with an independent drive constituted by an electric motor built into the inner space of the hollow rotating cylindrical housing of the winding roller (5), wherein the hollow rotating cylindrical housing of the winding roller (5) constitutes the rotor of the independent drive of the winding roller (5) and the outer surface of the hollow rotating cylindrical housing of the winding roller (5) is intended to be in contact with the bobbin (2) being driven and the bobbin (2) is driven by the bobbin (2) rolling on the outer surface of the hollow rotating cylindrical housing of the winding roller (5).