CN211284679U

CN211284679U - Improved rotary yarn guide device

Info

Publication number: CN211284679U
Application number: CN201922065603.0U
Authority: CN
Inventors: 朱爱明; 陈文哲; 周其旗; 朱贵亮
Original assignee: Suzhou Toptex Mechatronics Co ltd
Current assignee: Suzhou Toptex Mechatronics Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-08-18
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a rotatory wire device of improvement, including the casing of pivoted tube-shape under the drive that can outside silk thread, for the fixed axle of rotation of casing and set up in the inside bearing of casing, the inner circle of bearing with axle interference fit, the outer lane of bearing with the casing cooperation, and can follow the casing rotates, the casing with still be provided with an at least elastic buffer mechanism between the bearing, elastic buffer mechanism with bearing interference fit, just elastic buffer mechanism is in the elastic compression state all the time. The embodiment of the utility model provides a pair of rotatory wire device of improvement is provided with elastic buffer mechanism between the inner wall of casing and bearing inner race, can play fine cushioning effect between casing and bearing, and the casing is to the extrusion of bearing when reducing the assembly to improve bearing moving flexibility.

Description

Improved rotary yarn guide device

Technical Field

The utility model relates to a wire device, in particular to rotatory wire device of improvement belongs to mechanical technical field.

Background

When chemical fiber draw texturing yarn is produced, the average speed of the strand silk at the inlet of the false twister of the draw texturing machine is as high as 700m/min, and the yarn dividing roller is arranged at the position of a roller cradle and is matched with a leather roller on the cradle for use; in production, the filament is wound for 3-4 circles between the leather roller and the filament dividing roller, and the filament dividing roller is driven by the filament to rotate. The existing wire separating roller structure is shown in figure 1, two bearings are arranged between a shaft and a shell, the shaft is in interference fit with inner rings of the bearings, the shell is also in interference fit with outer rings of the bearings, the existing wire separating roller shell has extremely high requirement on processing precision, the inner wall of the shell is in direct interference fit with the bearings, and the outer rings of the bearings are extruded in assembly due to slight deviation of the roundness of the shell, so that the clearance of the bearings is affected, and the rotation flexibility of the whole workpiece during operation is further affected; in addition, the deviation of the roundness of the outer shell easily breaks the dynamic balance of the whole workpiece.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an improved rotary yarn guide device, which overcomes the disadvantages of the prior art.

For realizing the purpose of the utility model, the utility model discloses a technical scheme include:

an embodiment of the utility model provides a rotatory wire device of improvement, including the casing of pivoted tube-shape under the drive that can outside silk thread, for the fixed axle of rotation of casing and set up in the inside bearing of casing, the inner circle of bearing with axle interference fit, the outer lane of bearing with the casing cooperation, and can follow the casing rotates, the casing with still be provided with an at least elastic buffer mechanism between the bearing, elastic buffer mechanism with bearing interference fit, just elastic buffer mechanism is arranged in the casing with during between the bearing, elastic buffer mechanism is in the elastic compression state all the time.

In some specific embodiments, a plurality of elastic buffer mechanisms are further disposed between the housing and the bearing, and the elastic buffer mechanisms are sequentially disposed at intervals along the circumferential direction of the housing or the bearing.

In some more specific embodiments, the elastic buffer mechanism is an arc-shaped component matched with the inner wall of the shell and/or the bearing outer ring.

In some specific embodiments, the elastic buffer mechanism is a circular ring-shaped member continuously extending along the inner wall of the housing or the outer ring of the bearing.

In some specific embodiments, two or more bearings are disposed in the housing, each bearing corresponding to an elastic buffer mechanism, or two or more bearings corresponding to the same elastic buffer mechanism.

Furthermore, the elastic buffer mechanism is fixedly connected with the shell.

In some more specific embodiments, the resilient cushioning mechanism is a plastic member.

In some more specific embodiments, the elastic buffer mechanism is a protrusion structure protruding from the inner wall of the housing along a radial direction thereof.

Further, the housing is not in direct contact with the bearing.

Furthermore, a first sealing cover is fixedly arranged at the first port of the shell, a second sealing cover is fixedly arranged at the second port of the shell, one end of the shaft penetrates through the second sealing cover and extends out of the shell, and the second sealing cover is not in contact with the shaft.

Compared with the prior art, the embodiment of the utility model provides a pair of rotatory wire device of improvement is provided with elastic buffer mechanism between the inner wall of casing and bearing inner race, can play fine cushioning effect between casing and bearing, and the casing is to the extrusion of bearing when reducing the assembly to improve bearing moving flexibility, and, carry out the dynamic balance performance of heavy processing in order to optimize rotating part to the shield, extension bearing life-span.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a prior art configuration of a fiber-splitting roller;

fig. 2 is a side view of an improved rotary guide wire device in accordance with an exemplary embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of an improved rotary guide device along a-a according to an exemplary embodiment of the present invention.

Detailed Description

In view of the deficiencies in the prior art, the inventor of the present invention has made extensive studies and practices to provide the technical solution of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.

Referring to fig. 2 and 3, an improved rotary yarn guiding device is generally fixed to a cradle of an elasticizer when in use, and in production, a yarn is wound between the yarn guiding device and a leather roller, the improved rotary yarn guiding device includes a cylindrical housing a capable of being driven by an external yarn to rotate, two bearings d are arranged in a cavity inside the housing a, inner rings of the two bearings d are in interference fit with a shaft b, an elastic buffer mechanism e is further arranged between the housing a and the bearings d, the elastic buffer mechanism e is in interference fit with the bearings d, and the elastic buffer mechanism e is always in an elastic compression state; the housing a can rotate relative to the shaft b, and the outer ring of the bearing d can rotate along with the housing a.

In some specific embodiments, the elastic buffer mechanism e is fixedly connected to the inner wall of the housing a, and is in interference fit with the outer ring of the bearing d, and the bearing d is not in direct contact with the housing a.

Specifically, the elastic buffer mechanism e may be one or more arc-shaped members, and when the elastic buffer mechanism e is a plurality of arc-shaped members, the plurality of arc-shaped members are sequentially arranged at intervals along the circumferential direction of the housing or the bearing; or the elastic buffer mechanism e is a circular ring-shaped component which is formed by continuously extending along the inner wall of the shell a or the outer ring of the bearing d; the bearings d and the annular elastic buffer mechanisms e can be in one-to-one correspondence, or the two bearings d are matched with one annular elastic buffer mechanism e.

Specifically, the elastic buffer mechanism e may be a protrusion structure protruding from the inner wall of the housing a in the radial direction of the housing.

Specifically, the elastic buffer mechanism e may be a plastic member.

Specifically, the housing a is a cylindrical structure, the openings at the two ends of the housing a are respectively provided with a sealing cover, for example, a first sealing cover c is fixedly arranged at a first port of the housing a, a second sealing cover f is fixedly arranged at a second port of the housing a, one end of the shaft b is arranged in the housing, the other end of the shaft b passes through the second sealing cover f and extends out of the housing a, and the second sealing cover f is not in contact with the shaft b; wherein the first sealing cover c may be a plastic sealing cover.

Specifically, the second sealing cover f has a larger thickness, and the dust cover can be subjected to a de-weighting treatment, for example, the second sealing cover f is provided with a plurality of holes to reduce the weight of the second sealing cover f, so that the dynamic balance of the whole wire dividing roller shell is optimized.

It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and therefore, the protection scope of the present invention should not be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a rotatory wire device of improvement, including the casing of the tube-shape of pivoted under the drive of silk thread that can be outside, for the fixed axle of rotation of casing and set up in the inside bearing of casing, the inner circle of bearing with axle interference fit, the outer lane of bearing with the casing cooperation, and can follow the casing rotates its characterized in that: the shell with still be provided with an at least elastic buffer mechanism between the bearing, elastic buffer mechanism with bearing interference fit, just elastic buffer mechanism is arranged in the shell with when between the bearing, elastic buffer mechanism is in the elastic compression state all the time.

2. The improved rotary guidewire device of claim 1, wherein: a plurality of elastic buffer mechanisms are further arranged between the shell and the bearing, and are sequentially arranged at intervals along the circumferential direction of the shell or the bearing.

3. The improved rotary guidewire device of claim 2, wherein: the elastic buffer mechanism is an arc-shaped component matched with the inner wall of the shell and/or the bearing outer ring.

4. The improved rotary guidewire device of either of claims 1 or 2, wherein: the elastic buffer mechanism is a circular ring-shaped component formed by continuously extending along the inner wall of the shell or the outer ring of the bearing.

5. The improved rotary guidewire device of claim 1, wherein: more than two bearings are arranged in the shell, and each bearing corresponds to one elastic buffer mechanism, or more than two bearings correspond to the same elastic buffer mechanism.

6. The improved rotary guidewire device of claim 1, wherein: the elastic buffer mechanism is fixedly connected with the shell.

7. The improved rotary guidewire device of claim 6, wherein: the elastic buffer mechanism is a plastic component.

8. The improved rotary guidewire device of claim 1, wherein: the elastic buffer mechanism is a protruding structure protruding from the inner wall of the shell along the radial direction of the shell.

9. The improved rotary guidewire device of claim 1, wherein: the housing is not in direct contact with the bearing.

10. The improved rotary guidewire device of claim 1, wherein: the first port of the shell is fixedly provided with a first sealing cover, the second port of the shell is fixedly provided with a second sealing cover, one end of the shaft penetrates through the second sealing cover and extends out of the shell, and the second sealing cover is in non-contact with the shaft.