JP2000328374A - Spinning machine having double yarn guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the lateral junction of fiber form between yarns to be caught more favorably and the yarns to be cut through improving the condition at the outlet on the draft device or capacitor of a spinning machine. SOLUTION: This spinning machine is so designed as to be equipped with a draft device or capacitor from which at least two yarns 50a and 50b are allowed to travel out or drawn out at a slight interval therebetween; wherein the suction opening 44 of a suction device is situated between the two yarns 50a and 50b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning machine of the type comprising a drafting device or a condenser, from which at least two yarns respectively run out or are separated from each other by a small distance. .

[0002]

2. Description of the Related Art In spinning machines, especially ring spinning machines having a condenser, weft fibers are sometimes formed between two yarns which are drawn toward a kneading device and run side by side. Of weft fibers can interfere with the spinning process. German Patent Application DE 19
No. 5,00,036.6 describes a suction device for a spinning machine of the aforementioned type, in which the fibers linking a plurality of yarns are cut by a cutting plate. I have. Behind the cutting plate is a suction tube, which is arranged over the distance between the two yarns.

[0003] In a spinning machine having a ring traveler type tumbling device, a yarn balloon is formed as the traveler circulates around the spindle or cup along the ring, and the yarn balloon is placed above the spindle. The second thread balloon may follow the second thread balloon in a direction opposite to the thread traveling direction from the thread guide. This second yarn balloon may be formed up to a draft device from which the yarn material is fed to the spinning station.

[0004] This may be an obstacle for the operator of the spinning machine. This is because, in this case, the yarn supplied from the draft device to the spinning point is difficult to see, so that the state of the spinning point cannot be clearly determined. Thread breaks at the spinning location may therefore not be easily recognizable.

[0005]

SUMMARY OF THE INVENTION A first object of the present invention is to improve the condition at the exit from the drafting device or the condenser of the spinning machine so as to improve the cross-connection in the form of fibers between the yarns. To ensure that it can be caught and cut. In addition, the suction effect can be improved and at the same time the amount of air sucked can be reduced.

A second object of the present invention is to configure a spinning machine so that a secondary balloon as described above is not formed.

[0007]

SUMMARY OF THE INVENTION A first object of the present invention is to
The problem is solved by ensuring that the suction device is located between the two yarns.

A second object of the present invention is to provide a first yarn guide between a drafting device and a spinning point, wherein a second yarn is provided in front of the first yarn guide in a direction opposite to the yarn running direction. This is solved by having the guides arranged.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is described in claim 2
To 9 and 11 to 24.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be specifically described below based on embodiments shown in the drawings.

In the upper part of the frame 10 of the spinning machine shown in FIG. 1, a draft device 12 is arranged, inter alia, below the draft device, a yarn guide element 20 for guiding the yarn 11 to a spinning point 13; 25 are arranged. A rail 18 is slidably fixed to the guide 14, which rail is in each case a first for the spinning station.
And an additional second thread guide 25. Further, a ring frame 1 having a ring traveler system 17a is attached to a ring frame holder 16 attached to the guide 14.
7 are provided. The yarn 11 is wound around a spindle 19 by this ring traveler system. The yarn 11 comes from the drafting device 12 and first passes through a second yarn guide 25 which is arranged at a distance from the first yarn guide 20, and the space between the first yarn guide 20 and the ring traveler system 17 a. Is guided further downward while forming a balloon. In this embodiment, the double thread guide is formed of a wire, and the wire is firstly moved upward from below.
From 1, as shown in FIG. 2 or 1, the eye transitions to an eye 22, which in turn transitions into a first coupling section 23 as a single spiral. From the first connecting section 23, another connecting section 24 is directed obliquely upward in a direction opposite to the yarn running direction, and the second connecting section includes two guide portions 25a of the second yarn guide 25 and 25b, the guide portions being at an obtuse angle to each other. The second yarn guide 25 causes the yarn 11 to be slightly deflected between the draft device 12 and the first yarn guide 20,
It can be configured to contact the area between the first guide portion 25a and the second guide portion 25b. Since the thread has some play inside the eye 22, the rotational movement of the thread portion within the first thread guide 20 tends to continue from below to above, but this means that This is not done by the yarn 11 being slightly deflected and stopped by the second yarn guide 25 in the area between the guide portions 25a and 25b. As a result, the draft device 12 and the second yarn guide 25
The thread section between the two does not make any lateral movement, so that the thread section can be easily recognized by the operating personnel.

Another advantage is that the formation of the yarn 11 from the sliver at the outlet side of the drafting device takes place without interruption, since the yarn 11 unwound from the drafting device 12 does not move laterally.

At least a yarn running portion of the yarn guide 20;
That is, for example, the eye 22 is covered with ceramic,
Alternatively, a ceramic insert can be provided.

The improved suction device 40 according to the present invention has a suction head 42, which has a suction opening 44 between the two rolls at the outlet side of the drafting device or condenser. ing. In the embodiment shown in FIG. 3, the suction head is located below the nip point or nip line between the compression element 32 of the condenser 30 and the roll crimped on this compression element as follows: 42 is arranged so as to be positioned between the yarns 50a and 50b as shown in FIG. In FIG. 3, which is a longitudinal projection of the spinning machine, the yarn 50 and the plane in which the suction opening 44 is located form an acute angle on the right side of the yarn, ie outside the spinning machine. I have. A rib 46 extends along the suction head 42, and the upper edge of the rib at the suction opening 44 and the plane on which the suction opening 44 is located form an obtuse angle. This angle is preferably between 100 ° and 120 °. If fiber-shaped transverse joints are formed between the yarns 50a and 50b, these transverse joints first strike the suction opening 44 as shown in FIG. 3 when the yarns 50a, b are pulled out. It then slides more or less along the suction opening 44 in the direction of the rib 46. If the cross-link or cross-fiber is not cut immediately after striking the suction opening 44, the cross-link or cross-fiber is stretched at least after entering between the edge of the suction opening 44 and the upper edge of the rib 46. Is torn. In this way, it is avoided that the weft fibers are subsequently conveyed in the direction of the crimping device and hinder or interrupt the winding process. In the lower area of the suction head 42 is a thread guide 25, which, as already mentioned, serves to prevent the threads 50a and 50b from forming a secondary balloon during winding. In the simplest case, the thread guide 25 is a straight rod fixed to the suction device 40 as shown in FIG. The suction device 40 is adjustably mounted on the carrier 48, so that the ribs 46 impinge on the suction element at the nip point between the compression element 32 and the roll 34. It can be positioned as close as possible so that it does not occur. The compression element is preferably formed as a drum having a number of perforations and having a suction device therein. As shown in FIG. 4, the yarn guide 25 is configured as a prismatic rod arranged in the vertical direction of the spinning machine, or configured to be bent as shown by a broken line,
An exactly defined position of the thread 50a or 50b can be ensured. Another roll 36 is in contact with the compression element 32 and both rolls 3
2 and 36 constitute the exit roll of the draft device.

[Brief description of the drawings]

FIG. 1 is a schematic view of a ring spinning machine having a double yarn guide.

FIG. 2 is a plan view of the double yarn guide as viewed in the yarn running direction.

FIG. 3 is a side view of a suction device according to the present invention having a thread guide.

FIG. 4 is a view of the suction device in the direction of the arrow in FIG. 3;

[Explanation of symbols]

10 frames, 11 yarns, 12 draft devices,
13 spinning point, 14 guide, 16 ring frame holder, 17 ring frame, 17a ring traveler system,
Reference Signs List 18 rail, 19 spindle, 20 first thread guide, thread guide element, 21 holder, 2
2 eye, 23 first connection section, 24 second connection section, 25 second thread guide, thread guide element,
25a, 25b guide part, 30 condenser,
32 compression element, 34 rolls, 36 rolls, 40 suction device, 42 suction head, 44
Suction opening, 46 rib, 48 holder, 50a,
50b yarn

 ──────────────────────────────────────────────────続 き The continuation of the front page F term (reference) 4L056 AA02 BD01 CA06 CA08 CA16 CA68

Claims (24)

[Claims] 1. A drafting device (12) or a condenser (30) from which at least two yarns (50a, 50b) respectively run or exit at a slight distance from each other. In a spinning machine of the type two yarns (50
a spinning machine, characterized in that a suction device (40) is located between a, 50b). 2. Spinning machine according to claim 1, characterized in that the suction opening (44) of the suction device (40) is located immediately adjacent to the two rolls (32 and 34). 3. A suction head (4) of a suction device (40).
3. Spinning according to claim 1, wherein the plane of the suction opening (2) and the rib (46) attached to the side of the suction device (40) form an obtuse angle. machine. 4. A yarn guide (2) for two yarns (50a, 50b) located next to each other on a suction device (40).
5), whereby the yarns (50a, 50a)
4. The spinning machine according to claim 1, wherein a turning angle of b) ≦ 10 ° can be obtained. 5. The yarn guide (25) of the suction device (40) is configured as a prismatic rod or as a bent rod-shaped element.
The spinning machine according to any one of claims 1 to 4. 6. The spinning machine according to claim 1, wherein the yarns (50a, 50b) are arranged side by side at an interval of 10 to 20 mm. 7. The suction opening (44) of the suction device (40) between the two yarns (50a, 50b) having a width of 10 to 15 mm. 2. The spinning machine according to claim 1. 8. The spinning machine according to claim 7, wherein a width of the suction opening in a direction perpendicular to the width is 4 to 6 mm. 9. A suction device, characterized in that a rib is mounted on the side of the suction device directly in contact with the suction opening (44) of the suction device (40), the rib projecting at least 4 mm from the suction opening (44). The spinning machine according to any one of claims 1 to 8, wherein 10. A draft device (12) and a spinning point (1).
3), a second thread guide (25) is arranged in front of the first thread guide (20) in a direction opposite to the thread traveling direction. Characterized by the fact that
10. A spinning machine according to claim 1, in particular. 11. The second yarn guide (25) has two guide portions (25a, 25b), the yarn (11) being located between these guide portions. The spinning machine according to claim 10. 12. The second yarn guide (25) is configured in an L-shape and is turned slightly as follows: before the yarn (11) reaches the first yarn guide (20). The spinning machine according to claim 10, wherein the spinning machine is arranged so as to be able to be rotated. 13. The yarn guide according to claim 10, wherein the second thread guide is open to one side.
A spinning machine according to any one of the preceding claims. 14. The spinning machine according to claim 10, wherein the first yarn guide (20) and the second yarn guide (25) are integrally formed. . 15. Spinning machine according to claim 10, wherein the first yarn guide (20) and the second yarn guide (25) are made of wire. 16. A first yarn guide (20) is fixed to a rail (18) of a spinning machine, and a second yarn guide (2) is provided.
5. The method according to claim 1, wherein the step (5) is attached to the first thread guide by a connecting section (24).
A spinning machine according to any one of the preceding claims. 17. The first thread guide (20) has a spiral shape.
Two windings, which constitute the eye (22), and the second thread guide (25) is connected to the connecting section (24)
The spinning machine according to any one of claims 10 to 16, wherein the spinning machine is attached to the first yarn guide by a screw. 18. The method according to claim 10, wherein the first thread guide and the second thread guide have an eye shape. Spinning machine. 19. The holding body (21) is provided with a first thread guide (2).
0) and a first coupling section (23) extending outwardly from the eye (22) of the first thread guide (20).
A second thread guide (25) being held at a distance in front of the first thread guide via a second threaded section (24) attached to the first threaded section; The spinning machine according to any one of claims 10 to 18, characterized in that: 20. The second yarn guide (25) and the first yarn guide (20) are 10 to 30 mm apart from each other in the yarn running direction.
The spinning machine according to any one of claims 10 to 19, wherein the spinning machine is located at an interval of: 21. The spinning machine according to claim 10, wherein the first yarn guide has an inner width ≦ 2 mm. 22. The spinning machine according to claim 10, wherein the second yarn guide has a radius of curvature ≦ 1.5 mm at the yarn guide location. 23. The yarn guide (20) characterized in that at least the yarn running part is coated with ceramic.
A spinning machine according to any one of claims 10 to 22. 24. The yarn guide according to claim 1, wherein the yarn running portion of the yarn guide comprises a ceramic insert.
The spinning machine according to any one of 0 to 23.