CN108884603B

CN108884603B - Ring spinning machine

Info

Publication number: CN108884603B
Application number: CN201780023488.1A
Authority: CN
Inventors: E.科瑞齐; M.法内
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2016-04-15
Filing date: 2017-04-11
Publication date: 2022-06-21
Anticipated expiration: 2037-04-11
Also published as: CH712364A1; WO2017178961A1; EP3443154A1; CN108884603A; EP3443154B1

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 vibration device (9) for laying the roving, wherein the vibration device (9) is connected to a roving guide (14), wherein the roving guide (14) extends in both directions from the vibration device (9) in the longitudinal direction (x) of the ring spinning machine (1). The ring spinning machine has a plurality of drawing devices (5) for twisting the roving yarn (6), wherein the vibration device (9) is driven by an input lower roller (101) of the drawing device driving device. Advantageously, the ring spinning machine (1) according to the invention allows greater flexibility in construction in long or very long machines because of the inventive drive of the vibration device (9).

Description

Ring spinning machine

Technical Field

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

Background

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

DE112012005348T5 discloses a spinning machine with a plurality of spinning heads, each having a drawing-off device and an intermediate drive. The pulling device has at least two pulling rolls, which are connected to a pressure roll. The intermediate drive is arranged between the longitudinal ends of the drawing rolls such that the segments of the drawing rolls present on both sides of the intermediate drive can be driven via the intermediate drive. The spinning machine has a vibration device driven by an intermediate drive for laying the roving in the longitudinal direction of the machine, wherein the device comprises yarn guide rods extending from both sides of the intermediate drive. However, it has proved to be less advantageous for the vibration means to be driven by the intermediate drive means, since said vibration means is limited to the intermediate drive means and is therefore limited in design. For example, in the case of a longer machine, it may be necessary to use multiple traversing devices. However, this is not possible at all in DE112012005348T 5.

JP06-019576Y discloses a traverse device driven at the head for laying the roving, said device being connected to the roller via a gear. Here again, the disadvantage is that in the case of longer machines, the traversing devices cannot be installed in any position. Therefore, this method is very limited in design.

Disclosure of Invention

The object of the invention is therefore to create a ring spinning machine for laying rovings and a method for operating such a ring spinning machine, which is simpler than the ring spinning machines known from the prior art and avoids the disadvantages known from the prior art.

Furthermore, another object of the invention is to create a ring spinning machine for laying rovings and a method for operating the same, which will allow greater design flexibility in terms of traversing devices, in particular in the case of longer 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 individual traversing devices can be arranged such that they are distributed over the length.

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

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

This approach, independent of the possible central drive, is advantageous if this is so, because the traversing devices can be arranged at any position on the ring spinning machine, which will increase the structural flexibility. According to an embodiment, the traversing means may be connected to the lower inlet roller by a chain or belt. The drive wheels of the drive chain or belt are placed on the lower entry roller. For example, the driving wheel may be arranged at a position where the lower inlet roller is installed. The lower inlet roller itself is driven at the head or tail of the ring spinning machine.

In the longitudinal direction of the ring spinning machine, there can also be a plurality of traversing devices which are operated 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 rovings, the roving guide is equipped with a plurality of runners which guide the rovings to the pulling device. The plurality of traction devices may be arranged symmetrically on both sides of the longitudinal axis of the ring spinning machine, wherein the traversing device is arranged centrally between them. The roving guide is therefore driven on both sides by the same traversing device. The traversing device can consist of a conical drive or a T-slot cam drum, for example, the traversing device is connected to a cam and two transverse pivoting levers, wherein each pivoting lever is connected to a roving guide.

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

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

Drawings

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

FIG. 1 shows a schematic view of a ring spinning machine according to the invention;

fig. 2 shows a schematic view with a traversing device and a traction device according to section II-II in fig. 1; and

fig. 3 shows a schematic view of the drive of the traversing device.

Only the features important to the present invention are shown. Like features are identified in the same manner in different drawings.

Detailed Description

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 at the head 3 in the longitudinal direction x of the ring spinning machine 1₁And tail 3₂In the meantime. Head 3 of ring spinning machine 1₁And tail 3₂May include bearings, drives, controllers, etc. required for machine operation. As can be further seen in the example of two spinning heads 2 schematically shown in fig. 1, each spinning head 2 comprises one roving bobbin 4, which roving bobbin 4 is arranged above the traction means 5 and on which the roving 6 is wound. The roving 6 travels from the roving bobbin 4 over a pulling device 5, is pulled at the pulling device 5 and is then guided to a yarn forming element. The ring spinning machine can also have a central drive 8 for driving at least one roller, preferably a central roller, of the drawing device 5. The central drive 8 is arranged at the head 3 of the ring spinning machine 1₁And a tail part 3₂In the meantime. Additional drives on different rollers of the drawing device 5 are located on the head 3 of the ring spinning machine 1₁And/or tail 3₂In (1). In addition, a traversing device 9 for laying the roving can be seen in the schematic illustration in fig. 1. The 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, so 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 traverse devices 9 may be provided. Two traversing devices 9 are shown as an example. In this case, the roving guide 14 must be supported separately. The design and operation of the traversing means 9 is explained in more detail with reference to fig. 2.

FIG. 2 shows a schematic representation of the system according to FIG. 1A schematic view of the cross section II-II, wherein fig. 2 shows only one side of the traversing means 9 as an example. The roving is guided through a pulling device 5, which pulling device 5 consists in the example shown here of three different roller pairs and is shown schematically in fig. 2. The first roller pair being driven lower entry rollers 10₁And an upper inlet roller 10₂Formed inlet roller pair 10, driven lower inlet roller 10₁And an upper inlet roller 10₂Oppositely mounted, and the second roller pair is a driven central lower roller 11 mounted oppositely₁And a central upper roll 11₁A central roller pair 11 and a third roller pair being an outlet roller pair 12 consisting of oppositely mounted driven outlet lower rollers 12₁And an outlet upper roll 12₂And (4) forming. During operation of the ring spinning machine 1, the lower rollers each run at an 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 roller pairs 11, 12 are responsible for the main drawing of the roving 6.

As can now be seen in fig. 2, according to the invention the traversing means 9 are formed by a lower entry roller 10₁Driven via a chain or belt 13. The traversing means 9 thus have a drive wheel 16, which drive wheel 16 is connected to the chain or belt 13. The chain or belt 13 is driven by a drive wheel 19, the drive wheel 19 being located at the lower entry roller 10₁The above. Lower inlet roller 10₁Again by the head 3 of the ring spinning machine 1₁(or tail 3)₂) And a motor (not shown) thereon. This method, independently of a possible central drive 8, is advantageous because the traversing device 9 can now be arranged at the head 3 of the ring spinning machine 1₁And a tail part 3₂At any position in between. The traversing device 9 converts the movement of the driving wheel 16 into the movement of the pivoting lever 18 by means of an internal mechanism (e.g. a bevel gear) and a cam 17. It is also contemplated that a T-slot camdrum could be used for the desired purpose, 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 the roving guide 14, and a plurality of slide grooves 15 corresponding to the number of the spinning heads 2 are positioned on the roving guide 14 so as to feed the rovings 6 to the corresponding draft gear 5. The roving 6 is supplied to the draw-off device 5 such that the roving 6 follows the roving guide14 in the longitudinal direction x of the ring spinning machine 1 and the slide slot 15.

Fig. 3 shows a pivoting lever 18 for traversing the roving guide 14, with runners 15 on both sides of the pivoting lever 18 on the roving guide 14. Lower inlet roller 10₁There is a drive wheel 19, which drive wheel 19 can be arranged at one end or in the center and is connected to and drives the drive wheel 16 via a chain or belt 13. For example, the driving wheel 19 may be arranged at the installation lower inlet roller 10₁At the location of (a). Since the traversing gear 9 is arranged at the head 3 of the ring spinning machine 1₁And tail 3₂Thus, the roving guide 14 extends in both directions from the traverse 9 in the longitudinal direction x of the ring spinning machine.

List of reference numerals

1 Ring spinning machine

2 spinning head

3₁Head of ring spinning machine 1

3₂Tail of ring spinning machine 1

4 roving bobbin

5 traction device

6 Rove

7 cop

8 center driving device

9 traversing gear

10 inlet roller pair

10₁Lower inlet roller

10₂Upper inlet roller

11 center roller pair

11₁Central lower roller

11₂Center upper roll

12 outlet roller pair

12₁Outlet lower roller

12₂Outlet upper roll

13 chain, belt

14 roving guide rail

15 chute

16 driving wheel

17 cam

18 pivoting lever

19 driving wheel

Longitudinal direction of x ring spinning frame 1

Claims

1. A ring spinning machine comprising:

-at least one traverse device (9) for laying rovings, wherein the traverse device (9) is connected to a roving guide (14), and wherein the roving guide (14) extends in both directions from the traverse device (9) in the longitudinal direction (x) of the ring spinning machine (1);

-a plurality of pulling devices (5) for pulling rovings (6), consisting of at least two roller pairs (10, 11, 12), the at least two roller pairs (10, 11, 12) having an inlet roller pair (10) and an outlet roller pair (12), wherein each roller pair (10, 11, 12) has a lower inlet roller (10)₁、11₁、12₁) And an upper roller (10) oppositely installed₂、11₂、12₂) Wherein, in the step (A),

-the traversing device (9) is connected to a cam (17) and two pivoting levers (18), the pivoting levers (18) each being connected to one of the roving guides (14);

characterized in that said traversing means (9) are connected to said lower entry roller (10) by means of a chain or belt (13)₁) And is driven thereby.

2. A ring spinning machine (1) according to claim 1, characterized in that there are a plurality of traversing devices (9), each having mutually independent roving guides (14).

3. Ring spinning machine (1) according to any of the claims 1 or 2, characterized in that the lower inlet roller (10)₁) At the head (3) of the ring spinning machine (1)₁) At or at the tailSection (3)₂) Is driven.

4. A ring spinning machine (1) according to any of the claims 1 or 2, characterized in that the roving guide (14) has a number of chutes (15) for feeding the roving (6) to the pulling device (5).

5. A ring spinning machine (1) according to any of the claims 1 or 2, characterized in that the plurality of traction devices (5) are arranged symmetrically around the longitudinal axis on both sides of the ring spinning machine (1) and the traversing device (9) is arranged centrally between them.

6. A ring spinning machine (1) according to any of the claims 1 or 2, characterized in that the pulling device (5) consists of three roller pairs (10, 11, 12), wherein a first two roller pairs (10, 11) are responsible for the pre-pulling of the roving (6) and a second two roller pairs (11, 12) are responsible for the main pulling of the roving (6).

7. A ring spinning machine (1) according to any of the claims 1 or 2, characterized in that the ring spinning machine (1) has a central drive (8) which is independent of the traversing device (9).

8. A method for operating a ring spinning machine (1), wherein the ring spinning machine (1) comprises:

-a plurality of drawing devices (5) for drawing the roving (6), consisting of at least two roller pairs (10, 11, 12), said at least one roller pairThe two roller pairs (10, 11, 12) have an inlet roller pair (10) and an outlet roller pair (12), each roller pair (10, 11, 12) having a lower inlet roller (10)₁、11₁、12₁) And an upper roller (10) oppositely installed₂、11₂、12₂）；

-the traversing means (9) are connected to a cam (17) and two pivoting levers (18), each pivoting lever (18) being connected to one of the roving guides (14);

characterized in that said traversing means (9) is constituted by said lower entry roller (10)₁) Driven 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 roller (10)₁) At the head (3) of the ring spinning machine (1)₁) At or tail (3)₂) Is driven.

10. A 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) which is independent of the traversing device (9) and drives at least one roller (10, 11, 12) of the drawing device (5).