CN108884603A - ring spinning machine - Google Patents

Abstract

The invention relates to a ring spinning machine and a method for operating the ring spinning machine (1). The ring spinning machine comprises at least one vibrating device (9) for laying the roving, wherein the vibrating device (9) is connected to a roving guide (14), wherein the roving guide (14) is placed on the ring spinning machine (1 ) in the longitudinal direction (x) from the vibration device (9) in two directions. The ring spinning machine has a plurality of draw-offs (5) for twisting rovings (6), wherein the vibrating device (9) is driven by a feed lower roll (101) of the draw-off drive. Advantageously, the ring spinning machine ( 1 ) according to the invention allows greater flexibility in the construction of long or very long machines because of the drive according to the invention of the vibration device ( 9 ).

Description

ring spinning machine

technical field

The invention according to the respective preambles of the independent claims relates to a ring spinning machine and a method of operating a ring spinning machine.

Background technique

Ring spinning machines with traversing devices for laying the roving are known per se. The laying of the roving reduces possible wear at one location due to the uniform roving feed at one location as the roving is fed to the drawing device. Instead, the wear on the rollers is distributed by laying the feed over some defined area. The traversing device is connected to a roving guide rail which, as it moves, feeds the roving to the drawing device for the purpose of feeding the roving to the drawing device.

DE112012005348T5 discloses a spinning machine with a plurality of spinning heads, each spinning head having a drawing device and an intermediate drive device. The traction device has at least two traction rollers, which are connected to pressure rollers. The intermediate drive is arranged between the longitudinal ends of the traction rollers, so that sections of the traction roller present on both sides of the intermediate drive can be driven via the intermediate drive. The spinning machine has an oscillating device for laying the roving in the longitudinal direction of the machine driven by an intermediate drive, wherein said device comprises yarn guide rods extending from both sides of the intermediate drive. However, it has proven to be less advantageous for the vibrating device to be driven by an intermediate drive, since the vibrating device is limited to the intermediate drive and thus limited in terms of design. For example, in the case of longer machines, it may be necessary to use multiple traversing devices. However, this is completely impossible in DE112012005348T5.

JP06-019576Y discloses a traversing device for laying rovings driven at the head, which is connected to rollers via gears. Here again, the disadvantage is that, in the case of longer machines, the traversing device cannot be installed in any position. Therefore, this approach is very limited in terms of design.

Contents of the invention

Therefore, the object of the present invention is to create a ring spinning machine for laying rovings and a method for operating the same, which are more efficient than the ring spinning machines known from the prior art. It is simpler and avoids the disadvantages known in the prior art.

Furthermore, another object of the present invention is to create a ring spinning machine for laying rovings and a method for operating the same, which will allow, in particular in terms of traversing devices, Greater design flexibility in case of long machines.

Another object of the invention is to create a ring spinning machine for laying rovings and a method for operating a ring spinning machine in which a plurality of independent traversing devices can be arranged , so that they are distributed over the length.

The object of the invention is achieved according to the features of the preambles of the independent claims by the corresponding characterizing parts by a ring spinning machine and/or a method for operating a ring spinning machine. These objects are achieved in particular by the fact that the traversing device is driven by the lower inlet roller.

Advantageous embodiments of the invention are the subject of the dependent claims.

This approach, which is independent of a possible central drive, is advantageous if the traversing device can be arranged at any position on the ring spinning machine, which increases the structural flexibility. According to an embodiment, the traversing device may be connected to the lower inlet roller by a chain or a belt. The drive pulleys that drive the chain or belt are placed on the lower entry roller. For example, a drive wheel may be arranged at the position where the lower inlet roller is installed. The lower entry roll itself is driven at the head or tail of the ring spinning machine.

In the longitudinal direction of the ring spinning machine there may also be several traversing devices operating independently of one another. In this case, the roving guides are separated and supported individually. This embodiment also allows greater structural freedom in the design of the ring spinning machine.

For better guidance of the roving, the roving guide is equipped with several chutes, which guide the roving to the draw-off. A plurality of drawing devices can be arranged symmetrically on both sides of the longitudinal axis of the ring spinning machine, wherein the traversing device is arranged centrally therebetween. Thus, the roving guide is driven on both sides by the same traversing device. The traversing device may consist of a conical drive or a T-slotted cam drum, eg the traversing device is connected to a cam and to two lateral pivoting rods, wherein each pivoting rod is connected to a roving guide rail.

The drawing device preferably consists of three roller pairs, wherein the first two roller pairs are responsible for the pre-drawing of the roving and the second two roller pairs are responsible for the main drawing of the roving.

Further advantages of the invention can be derived on the basis of the embodiments described and illustrated below.

Description of drawings

The invention is explained in more detail on the basis of the accompanying drawings, in which,

Figure 1 shows a schematic diagram of a ring spinning machine according to the invention;

Figure 2 shows a schematic view with traversing means and traction means according to section II-II in Figure 1; and

FIG. 3 shows a schematic diagram of the drive of the traversing device.

Only the features that are essential to the invention are shown. The same features are identified in the same way in different drawings.

Detailed ways

FIG. 1 schematically shows a ring spinning machine 1 according to the invention with a plurality of spinning heads 2 arranged side by side. The spinning head 2 is arranged in the longitudinal direction x of the ring spinning machine ₁ between a head 31 and a tail ₃₂ . The head ₃₁ and tail 32 of the ring spinning machine ₁ may contain bearings, drives, controls etc. required for the operation of the machine. As can further be seen in the example of two spinning heads 2 schematically shown in FIG. A roving 6 is wound thereon. The roving 6 travels from the roving bobbin 4 over the drawing device 5, where it is drawn and then guided to the yarn forming element. The ring spinning machine can also have a central drive 8 for driving at least one roll, preferably a central roll, of the draw-off device 5 . The central drive 8 is arranged between the head ₃₁ and the tail 32 of the ring spinning machine ₁ . Additional drives on the different rollers of the drawing device 5 are located in the head ₃₁ and/or tail 32 of the ring spinning machine ₁ . Furthermore, the traversing device 9 for laying the rovings can be seen in the schematic illustration in FIG. 1 . A plurality of drawing devices 5 are preferably arranged symmetrically around the longitudinal axis on both sides of the ring spinning machine 1 , wherein the traversing device 9 is arranged centrally between them such that it drives the roving guide on each drawing device. As shown in Fig. 1, according to another embodiment of the present invention, a plurality of independent traversing devices 9 may be provided. Two traversing devices 9 are shown as an example. In this case, the roving guide rail 14 must be supported separately. The design and operation of the traversing device 9 is explained in more detail with reference to FIG. 2 .

FIG. 2 shows a schematic view according to section II-II in FIG. 1 , wherein FIG. 2 shows only one side of the traversing device 9 as an example. The roving is guided through a drawing device 5 which, in the example shown here, consists of three different roller pairs and is shown schematically in FIG. 2 . The first roller pair is an inlet roller pair ₁₀ composed of _a driven lower inlet roller 101 and an upper inlet roller 102, and the driven lower inlet roller ₁₀₁ and an upper inlet roller 102 are installed oppositely, while the _second roller pair is composed of The center roller pair 11 composed of the driven center lower roller 11 ₁ and the center upper roller 11 ₁ installed oppositely, and the third roller pair is the outlet roller pair 12, which consists of the driven outlet lower roller 12 ₁ and the outlet roller pair installed oppositely. The upper roller 12 consists of ₂ . During operation of the ring spinning machine 1, the lower rollers each run at increased speed in the forward direction of the roving, wherein the first two roller pairs 10, 11 are responsible for the pre-drawing of the roving 6, and the second two Two roller pairs 11 , 12 are responsible for the main draw of the roving 6 .

As can now be seen in FIG. 2 , according to the invention, the traversing device 9 is driven by a lower inlet roller ₁₀₁ via a chain or belt 13 . Thus, the traversing device 9 has a drive wheel 16 connected to a chain or belt 13 . The chain or belt 13 is driven by a drive wheel ₁₉ located on the lower inlet roller 101 . The lower entry roll 10 ₁ is in turn driven by a motor (not shown) on the head 3 ₁ (or tail 3 ₂ ) of the ring spinning machine 1 . This approach, independent of a possible central drive 8 , is advantageous because now the traversing device 9 can be arranged at any position between the head ₃₁ and the tail 32 of the ring spinning machine ₁ . The traversing device 9 converts the movement of the drive wheel 16 into the movement of the pivot rod 18 by means of internal mechanisms (eg bevel gears) and a cam 17 . For the desired purpose, it is also conceivable to use a T-slot cam drum, which converts the movement of the drive wheel 16 into the movement of the pivot lever 18 . As shown in Fig. 2, the pivot lever 18 is connected to a roving guide rail 14 on which a number of chutes 15 corresponding to the number of spinning heads 2 are positioned so that the roving 6 is fed to the corresponding Traction device 5. The roving 6 is fed to the drawing device 5 such that the roving 6 is deflected according to the back and forth movement of the roving guide 14 in the longitudinal direction x of the ring spinning machine 1 and the chute 15 .

FIG. 3 shows a pivot lever 18 for traversing the roving guide rail 14 , on which sliding slots 15 are provided on both sides of the pivot lever 18 . The lower inlet roller 101 has _a drive wheel 19 which may be arranged at one end or in the center and which is connected via a chain or belt 13 to and drives a drive wheel 16 . For example, the drive pulley 19 may be arranged at _a position where the lower entrance roller 101 is installed. Since the traversing device 9 is arranged between the head ₃₁ and the tail 32 of the ring spinning machine ₁ , the roving guides 14 move from the traversing device 9 in both directions in the longitudinal direction x of the ring spinning machine. extend.

List of reference numbers

1 ring spinning machine

2 spinning heads

3 ₁ Head of ring spinning machine 1

3 ₂ end of ring spinning machine 1

4 bobbins

5 traction device

6 rovings

7 bobbins

8 center drive unit

9 traverse device

10 Entrance roller pairs

10 ₁ lower entry roller

10 ₂ upper entrance roller

11 center roller pair

11 ₁ center lower roller

11 ₂ center upper roller

12 exit roller pairs

12 ₁ outlet lower roll

12 ₂ exit upper roll

13 chain, belt

14 Roving rail

15 chute

16 drive wheels

17 cam

18 pivot lever

19 drive wheel

x longitudinal direction of the ring spinning machine 1

Claims (10)

1. A ring spinning machine, comprising: at least one traversing device (9) for laying rovings, wherein said traversing device (9) is connected to a roving guide (14), and wherein said roving guide (14) is extending in two directions from said traversing device (9) in the longitudinal direction (x) of the machine (1); a plurality of drawing devices (5) for drawing the roving (6), consisting of at least two roller pairs (10, 11, 12), said at least two roller pairs (10, 11, 12) There are inlet roller pairs (10) and outlet roller pairs (12), wherein each roller pair (10, 11, 12) has a lower roller (10 ₁ , 11 ₁ , 12 ₁ ) and an oppositely mounted upper roller (10 ₂ , 11 ₂ , 12 ₂ ), where, · said traversing device (9) is connected to a cam (17) and to two side pivoting levers (18) each connected to a roving guide rail (14); It is characterized in that the traversing device (9) is connected to and driven by the lower inlet roller (10 ₁ ) via a chain or belt (13). 2. Ring spinning machine (1) according to claim 1, characterized in that there are several mutually independent traversing devices (9). 3. The ring spinning machine (1 ) according to any one of claims 1 or 2, characterized in that the lower inlet roll (10 ₁ ) is at the head of the ring spinning machine (1 ) Driven at the head (3 ₁ ) or tail (3 ₂ ). 4. The ring spinning machine (1) according to any one of claims 1 to 3, characterized in that the roving guide (14) has a plurality of slides (15) for The roving (6) is fed to the drawing device (5). 5. The ring spinning machine (1) according to any one of claims 1 to 4, characterized in that the plurality of pulling devices (5) They are symmetrically arranged laterally about the longitudinal axis, and said traction means (9) are arranged centrally therebetween. 6. Ring spinning machine (1) according to any one of claims 1 to 5, characterized in that the drawing device (5) consists of three roller pairs (10, 11, 12), wherein , the first two pairs of rollers (10, 11) are responsible for the pre-drawing of the roving (6), and the second two pairs of rollers (11, 12) are responsible for the main drawing of the roving (6). 7. The ring spinning machine (1) according to any one of claims 1 to 6, characterized in that the ring spinning machine (1) has a central drive (8) which The device is independent of said traversing device (9). 8. A method for operating a ring spinning machine (1), wherein the ring spinning machine (1) comprises: at least one traversing device (9) for laying rovings, wherein said traversing device (9) is connected to a roving guide (14), and wherein said roving guide (14) is extending in two directions from said traversing device (9) in the longitudinal direction (x) of the machine (1); a plurality of drawing devices (5) for drawing the roving (6), consisting of at least two roller pairs (10, 11, 12), said at least two roller pairs (10, 11, 12) There are inlet roller pairs (10) and outlet roller pairs (12), each roller pair (10, 11, 12) having lower rollers (10 ₁ , 11 ₁ , 12 ₁ ) and oppositely mounted upper rollers (10 ₂ , 11 ₂ , 12 ₂ ); · said traversing device (9) is connected to a cam (17) and to two transverse pivoting levers (18), each of said pivoting levers (18) being connected to a roving guide rail (14); It is characterized in that the traversing device (9) is driven by the lower inlet roller ( ₁₀₁ ) via a chain or belt (13) for laying the roving. 9. Method for operating a ring spinning machine (1) according to claim 8, characterized in that the lower inlet roll (101) is at the head of the ring spinning machine ( ₁ ) (3 ₁ ) or tail (3 ₂ ) is driven. 10. Method for operating a ring spinning machine (1) according to any one of claims 8 or 9, characterized in that the ring spinning machine (1) has a central drive (8) , the central drive is independent of the traversing device (9) and drives at least one roller (10, 11, 12) of the traction device (5).