CN217052531U

CN217052531U - Fiber strip supporting device and ring spinning machine

Info

Publication number: CN217052531U
Application number: CN202220985615.4U
Authority: CN
Inventors: 约翰内斯·费德勒; 埃里克·达里安·浮士德
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-07-26
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses a fiber strip strutting arrangement, it can be used to two drafting arrangements of adjacent setting each other of ring spinner, drafting arrangement has the feeding roller that sets gradually on the direction of motion of fiber strip right, middle roller right and output roller right, fiber strip strutting arrangement sets up at feeding roller right and middle roller between right, on ring spinner's longitudinal direction X, fiber strip strutting arrangement has the holding surface that extends to two drafting arrangements of adjacent setting respectively, the holding surface is used for supporting the fiber strip between feeding roller pair and middle roller pair, and fiber strip strutting arrangement is fixed a position on ring spinner through the fixed part that is located its centre.

Description

Fiber strip supporting device and ring spinning machine

Technical Field

The utility model relates to a fiber strip strutting arrangement, its two drafting arrangement that are used for adjacent setting each other of ring spinner to and the ring spinner who has this fiber strip strutting arrangement, ring spinner include the feeding roller that sets gradually on the direction of motion of fiber strip right, middle roller right and delivery roller right, and fiber strip strutting arrangement sets up at the feeding roller right and middle roller between right.

Background

Ring spinning machines are known from the prior art, which comprise a row of spinning units arranged next to one another, each spinning unit comprising a drafting device, which usually comprises three pairs of rollers, namely a feed roller pair, an intermediate roller pair and an output roller pair, which are arranged in succession in the direction of movement of the fibre sliver, wherein a pre-drafting zone is provided between the feed roller pair and the intermediate roller pair, and aprons are provided on the upper and lower rollers of the intermediate roller pair, respectively, for holding the fibre sliver, and a main drafting zone is formed between the intermediate roller pair and the output roller pair. The roving (i.e., fiber sliver) is drawn by a drawing device and carried from the roving drawing device to a twisting device, from which the produced yarn is drawn and wound in a winding device to form a package on a tube placed on a rotatable spindle, thereby forming a cop, i.e., a tube having a yarn package. If yarn production is interrupted (e.g. due to a yarn break), it is necessary to resume yarn production at the spinning unit. After the spinning is interrupted, the roving is fed on to the drawing device and the fibres are subsequently sucked into the waste if the drawing device is still working, which results in a waste of fibre raw material. Therefore, many current ring spinning machines are provided with a roving stop device, which can stop feeding of the roving of the spinning unit in time when the yarn production of the spinning unit is interrupted, and other spinning units continue to produce yarn without being affected.

British patent GB2154619B discloses a drafting device for a spinning machine having a sliver controller associated with an input sliver and a sliver stopping device, which controller, in the event of e.g. a spinning interruption or sliver interruption, drives a stopping element of the stopping device to move it to a clamping position between a lower roller and an upper roller of a pair of feed rollers, which element lifts the upper roller from the lower roller, holds the sliver between itself and the upper roller, and stops further movement of the sliver, wherein sliver supporting means are provided downstream in the travelling direction of the sliver, i.e. between the pair of feed rollers and the pair of intermediate rollers. In the case of a spinning interruption or sliver interruption, the sliver is stopped from being fed and clamped at the feed roller pair, and the sliver supporting device is used for supporting the sliver between the feed roller pair and the middle roller pair and preventing the sliver from falling into a space below the roller pair, so that the sliver can reliably and completely enter between the upper leather ring and the lower leather ring of the middle roller pair when the spinning is resumed. However, the sliver supporting device is adjustably installed on the supporting rail, and the sliver stopping device is also installed on the supporting rail in association, and since the mechanism of the drafting device of the spinning machine is compact and the space is narrow, the installation of the sliver supporting device is complicated, and the installation and maintenance are very inconvenient.

Disclosure of Invention

The utility model aims at overcoming the defect that prior art exists, provide a ribbon strutting arrangement, this ribbon strutting arrangement can be used to two drafting assemblies of adjacent setting each other of ring spinner, and this ribbon strutting arrangement has the feeding roller at drafting assembly to and middle roller to the holding surface between, and it is used for supporting the ribbon, prevents that the ribbon from dropping to the space of the below that the roller is right to so that the ribbon can be reliably from feeding roller pair to carrying middle roller pair.

In particular, in the longitudinal direction X of the ring spinning machine, the sliver support device has a support surface which extends to two adjacent drafting devices and which extends between the pair of feed rollers and the pair of intermediate rollers for supporting the sliver between the pair of feed rollers and the pair of intermediate rollers, the sliver support device having a fixing part in the middle by means of which it is fixed on the spinning machine.

Preferably, the fastening element of the sliver support comprises a projection extending in the direction of movement Y of the sliver along the support surface, said projection being located in the middle of the sliver support and having an arcuate surface which can bear in a form-fitting manner against the lower roller of the middle roller pair.

Preferably, the fixing part further comprises a support part, the support part is provided with a support surface which partially surrounds the lower roller of the feeding roller pair, the support part can be supported on the lower roller of the feeding roller pair in a shape matching manner, and under the matching of the protruding part and the support part, the fiber strip support device is positioned on the spinning machine.

In a further preferred embodiment, the support part of the fastening part can be arranged in such a way that it extends from below the support surface to a suspension rod of the spinning machine and has a support surface at its end which partially surrounds the suspension rod, so that the support part can be supported on the suspension rod in a form-fitting manner by means of the support surface, so that the positioning of the fiber strand support on the spinning machine is achieved.

After the technical scheme is adopted, the utility model discloses following positive effect has: the spinning machine can be provided with a fiber strip stopping device and/or a maintenance robot, the resetting of the fiber strip stopping device can be simplified due to the arrangement of the fiber strip supporting device, a maintainer or the maintenance robot only needs to simply reset the fiber strip stopping device, the fiber strips can be automatically fed between the middle roller pair under the support of the fiber strip supporting device, the intervention of the maintainer is not needed any more, and the complete automatic resetting is realized. The loss of fiber raw material and the workload of maintenance personnel can be reduced.

The utility model discloses simple structure, simple to operate in ring spinner compact mechanism maintains also simply, consequently can improve production efficiency.

Drawings

The invention will be better understood by means of a description of embodiments given by way of example and illustrated by the various drawings, in which:

FIG. 1 is a schematic view of a ring spinning machine;

fig. 2 is a first structural schematic diagram of the fiber strip supporting device of the present invention;

fig. 3 is a side view of a drafting device of a spinning unit according to the present invention, which is installed with a first kind of fiber sliver supporting device;

FIG. 4 is an enlarged schematic view of the first ribbon support assembly of FIG. 3;

FIG. 5 is a schematic view of a second ribbon support apparatus of the present invention;

fig. 6 is a schematic view showing the structure of a drafting device of a spinning unit according to the present invention, which is equipped with a second type of sliver supporting device.

The reference numbers in the drawings are as follows: 1. a ring spinning machine; 2. a spinning unit; 31. a headstock; 32. the tail of the vehicle; 4. a roving bobbin; 5. a drafting device; 51. feeding a roller pair; 52. a middle roller pair; 53. a pair of delivery rollers; 6. roving; 7. a bobbin; 8. a spindle; 9. a maintenance robot; 10. a cradle; 11. a sliver supporting means; 12. a support surface; 13. a fixed part; 13.1, a protrusion; 13.2, a support part; 13.3, supporting rods; 13.4, a suspension rod supporting surface; 14. a suspension rod; 15. a sliver stop device; 22. a yarn.

Detailed Description

Fig. 1 schematically shows a ring spinning machine 1 according to the invention, which ring spinning machine 1 has a plurality of spinning units 2 arranged next to one another. The spinning unit 2 is located between the head 31 and the tail 32 in the longitudinal direction x of the ring spinning machine 1. The head 31 and tail 32 of the ring spinning machine 1 may comprise bearings, drives, controls etc. necessary for the operation of the machine. As further shown, for example, at two spinning units 2 schematically shown in fig. 1, each spinning unit 2 comprises a roving bobbin 4, the roving bobbin 4 is arranged above the drafting device 5, and the roving 6 is wound on the roving bobbin 4. The roving 6 extends from the roving bobbin 4 via a drafting device 5, where the roving 6 is drawn into an untwisted yarn 22 at the drafting device 5 in order then to be guided via a yarn guide to a yarn twist forming element. The ring traveler, ring, etc. winds the finished yarn around the bobbin 7. The bobbin 7 is placed on a spindle 8. Optionally, a maintenance robot 9 is provided, the maintenance robot 9 moving along the ring spinning machine 1, and in case of a broken yarn, the maintenance robot 9 moving to the corresponding spinning unit 2 and automatically repairing the broken yarn. The individual spinning units 2 can be equipped with spindle monitors or other sensors for monitoring the ring traveler in order to detect yarn breakage. Alternatively or additionally, the spinning unit 2 can be equipped with a single spindle drive.

As shown in fig. 1 and 3, the drafting device 5 is generally provided with three roller pairs, which are a feed roller pair 51, a middle roller pair 52 and a delivery roller pair 53, wherein the upper roller and the lower roller of the middle roller pair 52 are respectively provided with a apron. Two drafting devices 5 arranged adjacent to each other form a group, the upper rollers of which are fixed to the same pressure cradle 10 and can be raised or lowered simultaneously with the cradle 10.

As shown in fig. 2 to 4, a fiber sliver support device 11 is arranged between the feed roller pair 51 and the middle roller pair 52, which has a support surface 12 for supporting the fiber sliver, the two support surfaces 12 respectively correspond to the two drafting devices 5 arranged adjacent to each other, the support surface 12 extends between the feed roller pair 51 and the middle roller pair 52, and the fiber sliver is supported thereby so as not to fall into the space below between the feed roller pair 51 and the middle roller pair 52. In particular, in the longitudinal direction X of the ring spinning machine 1, the support surfaces 12 of the fiber strip support devices 11 extend to two adjacent drafting devices 5, respectively, for supporting the fiber strips of the two drafting devices 5 arranged adjacent to each other, respectively, and the fiber strip support devices 11 are positioned on the components of the ring spinning machine 1 by a fixing part 13 between the two support surfaces 12. The fastening part 13 comprises a projection 13.1 extending in the direction of movement Y of the fibre sliver along the support surface 12, the projection 13.1 having an arcuate surface which can be placed against the bottom roller of the middle roller pair 52 in a form-fitting manner. The fixing part 13 further comprises a supporting part 13.2, the supporting part 13.2 is provided with a supporting surface which partially surrounds the lower roller of the feeding roller pair 51 and can be supported on the lower roller of the feeding roller pair 51 in a shape matching manner, and the fiber strip supporting device 11 is positioned and installed on the middle roller pair 52 and the lower roller of the feeding roller pair 51 through the protruding part 13.1 and the supporting part 13.2.

Preferably, as shown in fig. 5 to 6, the support part 13.2 can also be designed such that a support rod 13.3 extends from below the support surface 12, the support rod 13.3 extends to a suspension rod 14 of the spinning machine 1, the end of the support rod 13.3 has a support surface 13.4 that partially surrounds the suspension rod, so that the support part 13.2 can be supported on the suspension rod 14 by means of the support surface 13.4 in a form-fitting manner, so that the sliver support 11 is positioned between the lower roller of the middle roller pair 52 and the suspension rod 14 of the spinning machine 1.

Preferably, the draft device 5 of the ring spinning machine 1 may be provided with a sliver stop device 15, and the sliver stop device 15 may stop the feeding of the sliver to prevent the loss of the fiber material in the case where the spinning by the draft device 5 is interrupted. At this time, in the case where the sliver feeding is stopped, the sliver between the pair of feed rollers 51 and the pair of intermediate rollers 52 of the draft device 5 is thus supported by the sliver supporting device 11, preventing the sliver from falling into the space below the pair of rollers, so that the sliver can be reliably conveyed from the pair of feed rollers 51 to the pair of intermediate rollers 52 at the time of the maintenance work end and the spinning resumption, without requiring the intervention of maintenance personnel, and the workload of the maintenance personnel is reduced.

Advantageously, the ring spinning machine 1 can also be provided with a maintenance robot 9, said maintenance robot 9 being movable along the plurality of spinning units 2 on a track arranged in front of the ring spinning machine 1 and being able to stop at a specific spinning unit 2. When a sensor (not shown) of the spinning unit 2 detects that a yarn break occurs in a certain spinning unit 2, a central controller (not shown) sends a signal to control the maintenance robot 9 to move to the corresponding spinning unit 2 and automatically repair the yarn break or the like. After the end of the maintenance work, the maintenance robot 9 can automatically reset the sliver stop 15 by actuating the additionally provided lever, the roving starts to be fed again, and the spinning starts again. During maintenance, the fiber strip between the feeding roller pair 51 and the middle roller pair 52 of the drafting device 5 is supported by the fiber strip supporting device 11, the fiber strip is prevented from falling into a space below the roller pair, and when the maintenance work is finished and the spinning is recovered, the fiber strip can be reliably conveyed from the feeding roller pair 51 to the middle roller pair 52 without the intervention of maintenance personnel, so that the workload of the maintenance personnel is reduced, and the full automatic spinning recovery is realized.

The utility model discloses a ribbon strutting arrangement 11 simple structure, it is with low costs, be convenient for installation and maintenance, under ribbon stop device 15 and/or the help of maintaining robot 9, can realize full automatic maintenance operation, consequently can reduce fiber raw materials's loss and maintainer's work load to can improve production efficiency.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fiber strip supporting device (11) for two drafting devices (5) of a ring spinning machine (1) which are arranged adjacent to each other, wherein the drafting devices (5) are provided with a feeding roller pair (51), an intermediate roller pair (52) and an output roller pair (53) which are sequentially arranged in the moving direction Y of a fiber strip, the fiber strip supporting device (11) is arranged between the feeding roller pair (51) and the intermediate roller pair (52), and is characterized in that: in the longitudinal direction X of the ring spinning machine (1), the fiber strip supporting device (11) is provided with a supporting surface (12) which respectively extends to two adjacent drafting devices (5), the supporting surface (12) is used for supporting the fiber strip between the feeding roller pair (51) and the middle roller pair (52), and the fiber strip supporting device (11) is positioned on the ring spinning machine (1) through a fixing part (13) located in the middle of the fiber strip supporting device.

2. The sliver support (11) according to claim 1, wherein the fixed part (13) comprises a projection (13.1) extending in the direction of movement Y of the sliver, said projection (13.1) having an arcuate surface which can be placed against the bottom roller of the middle roller pair (52) in a form-fitting manner.

3. The sliver supporting arrangement (11) according to claim 2, characterized in that the fixing part (13) further comprises a supporting part (13.2), the supporting part (13.2) having a supporting surface which partially surrounds the lower roller of the feed roller pair (51) and which can be supported on the lower roller of the feed roller pair (51) in a form-fitting manner.

4. The sliver support device (11) according to claim 2, characterized in that the fixing part (13) further comprises a support part (13.2), the support part (13.2) having a support bar (13.3) extending from the bottom of the support surface (12) to the suspension bar (14) of the spinning machine (1), and the end of the support bar (13.3) having a suspension bar support surface (13.4) partially surrounding the suspension bar (14) which can be supported on the suspension bar (14) in a form-fitting manner.

5. The fiber sliver supporting device (11) according to any one of claims 1 to 4, wherein the drafting device (5) is provided with a fiber sliver stopping device (15).

6. The fiber strand support device (11) according to any of claims 1 to 4, characterized in that a maintenance robot (9) is provided on the ring spinning machine (1).

7. A ring spinning machine (1) characterized by a sliver support (11) according to any one of claims 1 to 6.