Method and winding station for improving a winding process of a textile machine

Abstract

A method improves a winding process of a textile machine and a winding station of a textile machine having a machine controller (11), a yarn sensor (4), a yarn quality monitor, in particular a yarn clearer (5), and a yarn connecting device, in particular a splicing device (3). A yarn (1) is wound onto a bobbin (2). The yarn (1) is analyzed with regard to its length, quality, and/or speed, and is cut if necessary in order to clear a quality defect and two yarn ends are connected to one another by means of the yarn connecting device after the quality defect has been removed. The yarn (1) is analyzed with regard to foreign material, yarn speed, and/or yarn length by means of a capacitive yarn sensor (4), and is analyzed with regard to the yarn body and the yarn characteristic by means of an optical yarn quality monitor. The yarn (1) is subsequently optionally cleared. Data of the capacitive yarn sensor (4) with regard to the foreign material and/or the yarn speed is provided to the yarn quality monitor, in particular the yarn clearer (5), and with regard to the yarn length and/or the yarn speed are provided to the machine controller (11).

Claims

1. A method for a winding process of a textile machine wherein a yarn is wound onto a bobbin, the textile machine including: a machine controller; a yarn sensor configured as a capacitive yarn sensor; a yarn quality monitor configured as an optical yarn clearer; and a yarn connecting device configured as a splicing device, the method comprising: analyzing the yarn with regard to one or more of length, quality, or speed; cutting the yarn with the optical yarn clearer when necessary to clear a quality defect; connecting two yarn ends to one another with the splicing device after the quality defect has been removed; wherein the analyzing step includes analyzing with regard to foreign material, yarn speed, and yarn length with the capacitive yarn sensor, and analyzing with regard to yarn body and characteristic with the optical yarn quality clearer; wherein data of the capacitive yarn sensor with regard to the foreign material in the yarn and yarn speed is provided to the optical yarn clearer, and wherein data of the capacitive yarn sensor with regard to the yarn length and the yarn speed is provided to the machine controller.

2. The method according to claim 1, wherein the quality of the yarn connection is evaluated by the yarn quality monitor taking into account the data of the capacitive yarn sensor concerning yarn speed.

3. The method according to claim 2, wherein the quality of the yarn is evaluated by the yarn quality monitor additionally taking into account the data of the capacitive yarn sensor concerning foreign material in the yarn.

4. The method according to claim 3, wherein the yarn quality monitor determines quality of multiple yarn connections used for the optimized setting of the parameters of the yarn connecting device.

5. The method according to claim 4, wherein the parameters of the yarn connecting device for a splicing operation are automatically set using the quality data of the yarn quality monitor.

6. The method according to claim 1, wherein the yarn connecting device, yarn sensor, and yarn quality monitor are directly or indirectly connected to one another in terms of data transmission.

7. The method according to claim 1, wherein yarn length determined by the capacitive yarn sensor is used for winding the bobbin with a predetermined setpoint yarn length, and the yarn is cut after the setpoint yarn length is reached.

8. The method according to claim 1, wherein a yarn tensioning device is used to tension the yarn as a function of the data from the capacitive yarn sensor.

9. The method according to claim 1, wherein data from the capacitive yarn sensor and the optical yarn clearer is stored.

10. The method according to claim 1, wherein the yarn body and the yarn characteristics are analyzed by the optical yarn clearer with regard to thick and thin points, hairiness, or twist.

11. The method according to claim 1, wherein the step of connecting two yarn ends to one another with the splicing device includes, after the yarn is cut, spinning a new yarn onto a yarn end.

12. A winding station of a textile machine for winding a yarn onto a bobbin in accordance with the method of claim 1, comprising: a machine controller; a capacitive yarn sensor; an optical yarn clearer; a splicing device, wherein the optical yarn clearer and the machine controller are directly or indirectly connected in terms of data transmission to the capacitive yarn sensor.

13. The winding station according to claim 12, wherein the optical yarn clearer is connected in terms of data transmission to the splicing device via the machine controller.

14. The winding station according to claim 13, wherein the capacitive yarn sensor is connected in terms of data transmission to the machine controller and to the optical yarn clearer.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) Further advantages of the invention are described in the following exemplary embodiments. The single FIGURE shows:

(2) FIGURE a schematic illustration of the present invention.

DETAILED DESCRIPTION

(3) Reference will now be made to the embodiments of the invention, one or more examples of which are shown in the drawings. Each embodiment is provided by way of explanation of the invention, and not as a limitation of the invention. For example features illustrated or described as part of the one embodiment can be combined with another embodiment to yield still another embodiment. It is intended that the present invention include these and other modifications and variations to the embodiments described herein.

(4) The single FIGURE shows a schematic illustration of the present invention. A yarn 1 is accordingly wound onto a bobbin 2. The yarn 1 runs in the direction of the arrow along a yarn connecting device, in the present case a splicing device 3, a capacitive yarn sensor 4, and a yarn quality monitoring device, in the present case an optical yarn clearer 5.

(5) The yarn sensor 4 occupies a central position with respect to the data transmission. In the yarn sensor 4, which operates according to the capacitive measuring principle, the yarn 1 is analyzed with regard to foreign fibers, for example made of polypropylene, contained therein, and the yarn speed. The information concerning foreign fibers which have been recognized in the yarn 1 and concerning the speed of the yarn 1 is transmitted as recognized foreign fibers 6 and yarn speed 7 to the yarn clearer 5. In the present exemplary embodiment, the yarn clearer 5 utilizes this data via the data line 8 to be able to set the parameters of the splicing device 3. In this regard, for example parameters for preparing the yarn ends or concerning the length of the overlapping yarn ends may be set.

(6) According to the present exemplary embodiment, the yarn sensor 4 likewise transmits data concerning the yarn speed 9 and data concerning the yarn length 10 to a machine controller 11. The machine controller 11 may be provided only for the winding station illustrated here. However, it is also possible for the machine controller 11 to be responsible for multiple adjoining winding stations, for example within a section. However, the machine controller 11 may also be a central controller which processes data for all winding stations of the textile machine. The machine controller 11 evaluates the data concerning the yarn speed 9 and the data concerning the yarn length 10 of the capacitive yarn sensor 4, and transmits the data concerning the yarn length 10 and/or yarn speed 9 to the bobbin 2 or its bobbin device via a data line 12, and to the optical yarn clearer 5 via a data line 13. For setting the splice parameters, starting from the information from the yarn sensor 4, the machine controller 11 is connected to the splicing device 3 via the data line 14.

(7) It is noted that the present invention does not necessarily require all data streams, or that of course even further data streams may be present, for example between the yarn clearer 5 and the machine controller 11. It is important that the capacitive yarn sensor 4 represents the central element for assessing the yarn 1 at the winding station. In particular, the yarn clearer 5 is directly, and the splicing device 3 is indirectly, supplied with data via the yarn sensor 4 in order to optimize their functioning, methods carried out, or settings. In addition, further settings and optimizations at the bobbin 2 or its bobbin device which supports and drives the bobbin 2 or changes the yarn in the bobbin 2, and/or at the yarn clearer 5 and/or at the splicing device 3, may indirectly take place via the data of the yarn sensor 4 and the machine controller 11.

(8) The present invention is not limited to the exemplary embodiment illustrated. The evaluation and control of fewer options than described here, or some other combination of these data evaluations, are possible at all times within the scope of the patent claims. Of course, the splicing device 3, the yarn sensor 4, and/or the yarn clearer 5 may also be accommodated in a single housing. The data lines 8, 12, and 13 as well as the transmission of the data 6, 7, 9, 10 may be designed as, or by means of, lines and/or wirelessly, for example in a bus system.

(9) Modifications and variations can be made to the embodiments illustrated or described herein without departing from the scope and spirit of the invention as set forth in the appended claims.

LIST OF REFERENCE NUMERALS

(10) 1 Yarn 2 Bobbin 3 Splicing device 4 Capacitive yarn sensor 5 Optical yarn clearer 6 Data concerning foreign fiber recognition 7 Data concerning yarn speed 8 Data line 9 Data concerning yarn speed 10 Data concerning yarn length 11 Machine controller 12 Data line 13 Data line 14 Data line