CN219972633U

CN219972633U - Braided wire tensioning mechanism of braiding machine

Info

Publication number: CN219972633U
Application number: CN202321165664.4U
Authority: CN
Inventors: 崔玉利
Original assignee: Xuzhou Rope Net New Material Research Institute Co ltd
Current assignee: Xuzhou Rope Net New Material Research Institute Co ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-11-07
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses a braided wire tensioning mechanism of a braiding machine, which comprises an adjusting component and a tensioning component, wherein the adjusting component is arranged on a frame of the braiding machine and comprises a transverse adjusting mechanism and a longitudinal adjusting mechanism, and the transverse adjusting mechanism is arranged on the frame of the braiding machine; the longitudinal adjusting mechanism is movably arranged on the transverse adjusting mechanism; the tensioning assembly is arranged on the longitudinal adjusting mechanism and comprises a supporting plate, two longitudinal tensioning parts, a transverse moving mechanism and a tensioning wheel, wherein the supporting plate is arranged on the longitudinal adjusting mechanism; the two longitudinal tensioning parts are arranged on two sides of the supporting plate side by side; the transverse moving mechanism is arranged between the two longitudinal tensioning parts; the tensioning wheel is rotatably arranged on the transverse moving mechanism. Therefore, the position of the tensioning wheel can be adaptively adjusted according to the offset position of the braided wire, abrasion of the braided wire caused by the tensioning wheel when the braided wire is offset is effectively prevented, and the quality of the braided wire is guaranteed.

Description

Braided wire tensioning mechanism of braiding machine

Technical Field

The utility model relates to the technical field of braiding machine equipment, in particular to a braided wire tensioning mechanism of a braiding machine.

Background

At present, the braiding machine needs to tension braided wires in the braiding process so as to prevent the braided wires from loosening and generating yarn scattering.

Currently, chinese patent publication No. CN206396428U discloses a knitting yarn tensioning mechanism of a knitting machine, which comprises a frame fixedly arranged, a roller (tensioning wheel) wound on the knitting yarn, a central spindle, a pair of adjusting components rotatably mounted on the central spindle, and a pair of adjusting components correspondingly arranged at two axial ends of the central spindle. The tensioning mechanism of the device has stable tensioning effect, and the braided wire is not easy to slip and run. However, the roller in this tension mechanism is fixed in position and cannot be adjusted according to the offset position of the braided wire, and when the braided wire is offset, the roller is liable to wear the braided wire, and the quality of the braided wire is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, an object of the present utility model is to provide a braided wire tensioning mechanism of a braiding machine, which can adaptively adjust the position of a tensioning wheel according to the offset position of a braided wire, effectively prevent the tensioning wheel from wearing the braided wire when the braided wire is offset, and ensure the quality of the braided wire.

To achieve the above object, a first aspect of the present utility model provides a knitting yarn tensioning mechanism of a knitting machine, comprising an adjusting assembly and a tensioning assembly, wherein the adjusting assembly is arranged on a frame of the knitting machine, the adjusting assembly comprises a transverse adjusting mechanism and a longitudinal adjusting mechanism, and the transverse adjusting mechanism is arranged on the frame of the knitting machine; the longitudinal adjusting mechanism is movably arranged on the transverse adjusting mechanism; the tensioning assembly is arranged on the longitudinal adjusting mechanism and comprises a supporting plate, two longitudinal tensioning parts, a transverse moving mechanism and a tensioning wheel, wherein the supporting plate is arranged on the longitudinal adjusting mechanism; the two longitudinal tensioning parts are arranged on two sides of the supporting plate side by side; the transverse moving mechanism is arranged between the two longitudinal tensioning parts; the tensioning wheel is rotatably arranged on the transverse moving mechanism, and the tensioning wheel is in abutting connection with the knitting line.

The braided wire tensioning mechanism of the braiding machine can adaptively adjust the position of the tensioning wheel according to the offset position of the braided wire, effectively prevents the tensioning wheel from wearing the braided wire when the braided wire is offset, and ensures the quality of the braided wire.

In addition, the knitting yarn tensioning mechanism of the knitting machine proposed according to the application above may further have the following additional technical features:

specifically, the transverse adjusting mechanism comprises a supporting table, a threaded rod, a driving handle and a sliding block, wherein the supporting table is fixedly arranged on a frame of the knitting machine, and a sliding groove is formed in the supporting table; the threaded rod is rotatably arranged in the chute, and one end of the threaded rod penetrates through the chute and is connected with the driving handle; the sliding block is slidably arranged in the sliding groove, the sliding block is sleeved on the threaded rod, and the sliding block is in threaded connection with the threaded rod.

Specifically, the longitudinal adjusting mechanism comprises a mounting box, a rack, a gear, a worm wheel and a worm, wherein the mounting box is detachably arranged on the sliding block, and a slideway is arranged on the mounting box; the rack is movably arranged in the slideway, and the bottom end of the rack is fixedly connected with the top wall of the supporting plate; the gear and the worm gear are coaxially and rotatably arranged in the mounting box, and the gear is meshed with the rack; the worm is rotatably arranged in the mounting box, one end of the worm penetrates through the mounting box and is connected with the handle, and the worm is meshed with the worm wheel.

Specifically, the longitudinal tensioning component comprises a support column, a square sleeve and a spring, wherein the support column is vertically arranged on the bottom wall of the support plate; the square sleeve is movably sleeved on the support column; the spring is sleeved on the supporting column, one end of the spring is fixedly connected with the supporting plate, and the other end of the spring is fixedly connected with the square sleeve.

Specifically, the transverse moving mechanism comprises two cylinders, two pistons, a spline shaft and a supporting ring, wherein the two cylinders are symmetrically and respectively arranged on the corresponding square sleeves, and spline-shaped through holes are respectively arranged on opposite surfaces of the two cylinders; the two pistons are respectively and movably arranged in the corresponding cylinder bodies, and the pistons are connected with the inner walls of the cylinder bodies in a sealing way through sealing rings; the spline shaft is movably arranged between the two cylinder bodies, and the end part of the spline shaft penetrates through the spline-shaped through hole and is fixedly connected with the piston; the support ring is sleeved on the spline shaft, and the support ring is fixedly arranged at the middle position of the spline shaft, wherein the tensioning wheel is rotatably arranged on the support ring.

Specifically, the inner circle Zhou Zhen of the annular groove of the tensioning wheel is provided with a plurality of arc-shaped rubber teeth.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a knitting yarn tensioning mechanism of a knitting machine according to an embodiment of the utility model;

FIG. 2 is a schematic view of a lateral adjustment mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a knitting yarn tensioning mechanism of a knitting machine according to another embodiment of the utility model;

fig. 4 is a schematic diagram showing an assembly structure of a spline shaft and a support ring according to an embodiment of the present utility model.

As shown in the figure: 10. an adjustment assembly; 11. a lateral adjustment mechanism; 111. a support table; 112. a threaded rod; 113. a drive handle; 114. a slide block; 1101. a chute; 12. a longitudinal adjustment mechanism; 121. a mounting box; 122. a rack; 123. a gear; 124. a worm wheel; 125. a worm; 1201. a slideway; 20. a tensioning assembly; 21. a support plate; 22. a longitudinal tensioning member; 221. a support column; 222. a square sleeve; 223. a spring; 23. a lateral movement mechanism; 231. a cylinder; 232. a piston; 233. a spline shaft; 234. a support ring; 2301. a spline-shaped through hole; 24. a tensioning wheel; 30. arc rubber teeth.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

The knitting yarn tensioning mechanism of the knitting machine according to the embodiment of the utility model is described below with reference to the drawings.

As shown in fig. 1-4, the knitting yarn tensioning mechanism of the knitting machine of the embodiments of the utility model may include an adjustment assembly 10 and a tensioning assembly 20.

Wherein the adjustment assembly 10 is provided on a frame (not shown in the figures) of the weaving machine, the adjustment assembly 10 may comprise a lateral adjustment mechanism 11 and a longitudinal adjustment mechanism 12.

Wherein the lateral adjustment mechanism 11 is provided on a frame of the knitting machine, wherein the lateral adjustment mechanism 11 is configured to drive the tensioning assembly 20 to perform a lateral reciprocating movement to adjust a lateral position of the tensioning assembly 20 (i.e., any one of distances between one end and the other end of the support stand 111 in the lateral adjustment mechanism 11). The longitudinal adjustment mechanism 12 is movably arranged on the lateral adjustment mechanism 11, wherein the longitudinal adjustment mechanism 12 is used for adjusting the longitudinal position of the tensioning assembly 20 (i.e. any position of the length of the rack 123 in the longitudinal adjustment mechanism 12) so as to change the tensioning force of the tensioning wheel 24 on the knitting yarn 13 in the tensioning assembly 20.

The tensioning assembly 20 is arranged on the longitudinal adjustment mechanism 12, the tensioning assembly 20 may comprise a support plate 21, two longitudinal tensioning members 22, a lateral movement mechanism 23 and a tensioning wheel 24.

Wherein, backup pad 21 sets up on vertical adjustment mechanism 12, and two vertical tensioning parts 22 set up in the both sides of backup pad 21 side by side, wherein, two vertical tensioning parts 22 are used for exerting vertical elasticity tensioning force to the braided wire through take-up pulley 24, and lateral shifting mechanism 23 sets up between two vertical tensioning parts 22, wherein, lateral shifting mechanism 23 is used for carrying out the self-adaptation to the position of take-up pulley 24 according to the skew of braided wire 13 to make take-up pulley 24 adapt to the skew position of braided wire, and then prevent take-up pulley 24 to produce wearing and tearing to the braided wire, guarantee the braided wire's quality of weaving.

The tensioning wheel 24 is rotatably arranged on the transverse moving mechanism 23, and the tensioning wheel 24 is in abutting connection with the knitting yarn 13.

It should be noted that, in this embodiment, the tensioning wheel 24 is provided with an annular groove (not specifically identified in the drawing), and the braided wire 13 is abutted in the annular groove, so as to prevent the braided wire from sliding out of the wheel during the high-speed rotation of the tensioning wheel, and prevent the braided wire from sliding out of the position.

Specifically, when tensioning the knitting yarn, the related staff first needs to set the knitting yarn tensioning mechanism of the knitting machine on the frame of the corresponding knitting machine, and then the staff drives the tensioning assembly 20 to move laterally by controlling the lateral adjusting mechanism 11, so that the tensioning wheel 24 in the tensioning assembly 20 abuts against the knitting yarn 13.

Then, the operator controls the longitudinal adjustment mechanism 12 to drive the tensioning assembly 20 to longitudinally move, so that the tensioning wheel 24 in the tensioning assembly 20 applies downward pressure to the braided wire 13, meanwhile, the braided wire 13 applies opposite acting force to the tensioning wheel 24, the tensioning wheel 24 applies upward pressure to the two longitudinal tensioning parts 22 through the transverse movement mechanism 23, namely, the tensioning wheel 24 applies tensioning force to the braided wire 13 through opposite acting force of the two longitudinal tensioning parts 22, the braided wire 13 can be prevented from being wound too tightly, and when the tensioning wheel 24 rotates at a high speed, the two longitudinal tensioning parts 22 also play a role of buffering and damping, so that the contact force between the braided wire 13 and the tensioning wheel 24 can be flexibly adjusted, the situation that the braided wire breaks due to the winding too tightly is avoided, and if the braided wire is loose, the two longitudinal tensioning parts 22 release part of elastic potential energy, so that the braided wire is properly compressed by the tensioning wheel 24. In addition, the operator can control the longitudinal adjustment mechanism 12 to drive the tensioning wheel 24 to move so as to adjust the compaction force of the knitting yarns.

When the braided wire 13 is deviated, the deviation force of the braided wire 13 drives the tension pulley 24 to move on the transverse moving mechanism 23, and transverse pushing force is applied to the transverse moving mechanism 23, so that the tension pulley 24 can adaptively move and adjust the deviation position of the braided wire 13, the tension pulley 24 is enabled to adapt to the deviation position of the braided wire 13, abrasion of the braided wire by the tension pulley 24 is prevented, and the quality of the braided wire is guaranteed. When the braided wire 13 returns to normal, the tension wheel 24 is stressed and drives the transverse moving mechanism to reset so as to adapt to the position of the reset braided wire 13. And then can carry out the self-adaptation to the position of take-up pulley 24 according to the skew position of braided wire 13 and adjust, effectively prevent that take-up pulley 24 from causing wearing and tearing to the braided wire when braided wire 13 takes place to skew, guaranteed the quality of braided wire.

In one embodiment of the present utility model, as shown in fig. 2 and 3, the lateral adjustment mechanism 11 may include a support table 111, a threaded rod 112, a drive handle 113, and a slider 114.

The support table 111 is fixedly arranged on a frame of the knitting machine, wherein the support table 111 can be arranged on the frame of the knitting machine through a threaded fastener (screw, bolt or bolt), and a sliding groove 1101 is arranged on the support table 111.

The threaded rod 112 is rotatably disposed in the chute 1101, and one end of the threaded rod 112 penetrates the chute 1101 and is connected to the driving handle 113.

The slider 114 is slidably disposed in the chute 1101, the slider 114 is sleeved on the threaded rod 112, and the slider 114 is in threaded connection with the threaded rod 112.

In one embodiment of the present utility model, as shown in FIG. 3, the longitudinal adjustment mechanism 12 may include a mounting box 121, a rack 122, a gear 123, a worm gear 124, and a worm 125.

Wherein, the installation box 121 is detachably arranged on the sliding block 114, and a slideway 1201 is arranged on the installation box 121. It will be appreciated that the mounting box 121 described in this embodiment is removably mounted to the slider 114 to facilitate installation and replacement of the mounting box 121. For example, mounting case 121 may be coupled to slider 114 by snap-fit, rivet, or threaded fastener connection, among others

The rack gear 122 is movably disposed in the slide 1201, and the bottom end of the rack gear 122 is fixedly connected to the top wall of the support plate 21, the gear 123 and the worm wheel 124 are coaxially and rotatably disposed in the mounting box 121, and the gear 123 is engaged with the rack gear 122.

A worm 125 is rotatably provided in the mounting case 121, one end of the worm 125 penetrates the mounting case 121 and is connected to a handle (not specifically shown), and the worm 125 is engaged with a worm wheel 124.

Specifically, when the transverse position of the tensioning wheel 24 in the tensioning assembly 20 needs to be adjusted, the operator manually rotates the driving handle 11, the rotating driving handle 11 drives the threaded rod 112 to rotate, the rotating threaded rod 112 drives the tensioning assembly 20 to transversely move through the sliding block 114, and the transverse position of the tensioning wheel 24 in the tensioning assembly 20 is adjusted, so that the tensioning wheel 24 is abutted against the knitting yarn 13.

When needs are adjusted the conflict pressure of take-up pulley 24 conflict on braided wire 13, and staff's accessible manual rotation handle, pivoted handle drive worm 125 rotates, and pivoted worm 125 drives worm wheel 124 and rotates, and pivoted worm wheel 124 drives gear 123 and rotates in step, and pivoted gear 123 drives rack 122 and carries out longitudinal movement, and the rack 122 of removal drives tensioning assembly 20 and goes up and down to remove, and then adjusts the conflict pressure of take-up pulley 24 conflict on braided wire 13.

In one embodiment of the present utility model, as shown in FIG. 3, the longitudinal tensioning member 22 may include a support post 221, a square sleeve 222, and a spring 223.

The support column 221 is vertically disposed on the bottom wall of the support plate 21, and the square sleeve 222 is movably sleeved on the support column 221.

It should be noted that, in this embodiment, a stopper (not specifically identified in the drawing) is disposed at the bottom end of the supporting column 221, and is used for blocking the square sleeve 222.

The spring 223 is sleeved on the support column 221, one end of the spring 223 is fixedly connected with the support plate 21, and the other end of the spring 223 is fixedly connected with the square sleeve 222.

In one embodiment of the present utility model, as shown in fig. 3 and 4, the lateral movement mechanism 23 may include two cylinders 231, two pistons 232, a spline shaft 233, and a support ring 234.

The two cylinders 231 are symmetrically and respectively arranged on the corresponding square sleeves 222, and spline-shaped through holes 2301 are respectively formed on opposite surfaces of the two cylinders 231.

The two pistons 232 are respectively movably disposed in the corresponding cylinders 231, and the pistons 232 are hermetically connected with the inner walls of the cylinders 231 by sealing rings (not specifically identified in the drawings). It should be noted that, in this embodiment, the cylinder 231 is provided with a ventilation opening (not specifically shown in the figure), and when the piston 232 moves toward the ventilation opening, the piston 232 pushes the air of the cylinder 231 out through the ventilation opening.

It should be noted that, in this embodiment, the initial position of the piston 232 is located at the middle position of the cylinder 231, that is, the maximum moving distance of the piston 232 is the distance between the piston 232 and the end wall of the cavity of the cylinder 231.

A spline shaft 233 is movably provided between the two cylinders 231, and an end portion of the spline shaft 233 penetrates through the spline-shaped through hole 2301 and is abutted (fitted) with an end face of the piston 232.

The support ring 234 is sleeved on the spline shaft 233, and the support ring 234 is fixedly arranged at the middle position of the spline shaft 233, wherein the tensioning wheel 24 is rotatably arranged on the support ring 234.

Specifically, when the worker drives the tensioning wheel 24 to apply downward pressing force to the knitting yarn 13 by adjusting the longitudinal adjusting mechanism 12, the knitting yarn 13 will generate opposite acting force to the longitudinal adjusting mechanism 12, and the knitting yarn 13 pushes the two square sleeves 222 to move upwards synchronously on the two support columns 221 through the transverse moving mechanism 23, the upwards moving square sleeves 222 compress the springs 223, and the compressed springs 223 will apply elastic tensioning force to the knitting yarn 13 through the tensioning wheel 24 under the action of the tension force, so as to prevent the knitting yarn from being wound tightly.

When knitting, the knitting yarn 13 and the tension pulley 24 are in a state of high-speed movement, so that the spring subjected to pressure can play a role in proper buffering and damping, and further the contact force between the knitting yarn 13 and the tension pulley 24 can be flexibly adjusted, so that the situation that the knitting yarn is stretched out due to over-tight winding is avoided. The spring may also release some of the elastic potential energy if the braided wire is relaxed, thereby allowing the tensioner 24 to properly compress the braided wire.

When the braided wire is offset in the process of high-speed movement, the offset braided wire applies transverse pressure to the tensioning wheel 24, the pressed tensioning wheel 24 drives the spline shaft 233 to move towards the offset direction of the braided wire through the supporting ring 234, the moving spline shaft 233 pushes the piston 232 to move in the cylinder 231 and pushes air in the cylinder 231 out of the ventilation opening, the tensioning wheel 24 moves along with the offset of the braided wire 13, the braided wire 13 is always positioned in the middle of the tensioning wheel 24, and further hard abrasion of the braided wire by the tensioning wheel 24 when the braided wire 13 is offset is prevented, and the quality of the braided wire is guaranteed.

When the braid is offset to be reset, the tensioner 24 receives the reset force and pulls the piston 232 to be reset through the spline shaft 233.

In one embodiment of the present utility model, as shown in fig. 3, the inner circle Zhou Zhen of the annular groove of the tension pulley 24 is provided with a plurality of arc-shaped rubber teeth 30, for example, the plurality of arc-shaped rubber teeth 30 may include 10, 11, 12, 13, 14, 15 arc-shaped rubber teeth 30, etc., and the specific number may be selected according to practical situations, and is not limited herein.

It can be appreciated that by arranging a plurality of arc-shaped rubber teeth 30 on the inner circumference of the annular groove of the tensioning wheel 24, the friction force between the braided wire and the tensioning wheel can be effectively increased, the slipping phenomenon in the conveying process is avoided, and the tensioning force of the tensioning wheel on the braided wire is more effective.

In summary, the braided wire tensioning mechanism of the braiding machine provided by the embodiment of the utility model can adaptively adjust the position of the tensioning wheel according to the offset position of the braided wire, so that the braided wire is effectively prevented from being worn by the tensioning wheel when the braided wire is offset, and the quality of the braided wire is ensured.

In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A knitting yarn tensioning mechanism of a knitting machine is characterized by comprising an adjusting component and a tensioning component, wherein,

the adjusting component is arranged on the frame of the braiding machine and comprises a transverse adjusting mechanism and a longitudinal adjusting mechanism, wherein,

the transverse adjusting mechanism is arranged on a frame of the knitting machine;

the longitudinal adjusting mechanism is movably arranged on the transverse adjusting mechanism;

the tensioning assembly is arranged on the longitudinal adjusting mechanism and comprises a supporting plate, two longitudinal tensioning parts, a transverse moving mechanism and a tensioning wheel, wherein,

the supporting plate is arranged on the longitudinal adjusting mechanism;

the two longitudinal tensioning parts are arranged on two sides of the supporting plate side by side;

the transverse moving mechanism is arranged between the two longitudinal tensioning parts;

the tensioning wheel is rotatably arranged on the transverse moving mechanism, and the tensioning wheel is in abutting connection with the knitting line.

2. Knitting yarn tensioning mechanism of a knitting machine as claimed in claim 1, characterized by that the lateral adjustment mechanism comprises a support table, a threaded rod, a drive handle and a slider, wherein,

the supporting table is fixedly arranged on a frame of the knitting machine, and a sliding groove is formed in the supporting table;

the threaded rod is rotatably arranged in the chute, and one end of the threaded rod penetrates through the chute and is connected with the driving handle;

the sliding block is slidably arranged in the sliding groove, the sliding block is sleeved on the threaded rod, and the sliding block is in threaded connection with the threaded rod.

3. Knitting yarn tensioning mechanism of a knitting machine as claimed in claim 2, characterized by that the longitudinal adjustment mechanism comprises a mounting box, a rack, a pinion, a worm wheel and a worm, wherein,

the mounting box is detachably arranged on the sliding block, and a slideway is arranged on the mounting box;

the rack is movably arranged in the slideway, and the bottom end of the rack is fixedly connected with the top wall of the supporting plate;

the gear and the worm gear are coaxially and rotatably arranged in the mounting box, and the gear is meshed with the rack;

the worm is rotatably arranged in the mounting box, one end of the worm penetrates through the mounting box and is connected with the handle, and the worm is meshed with the worm wheel.

4. Knitting yarn tensioning mechanism of a knitting machine as claimed in claim 1, characterized by that the longitudinal tensioning member comprises a support column, a square sleeve and a spring, wherein,

the support columns are vertically arranged on the bottom wall of the support plate;

the square sleeve is movably sleeved on the support column;

the spring is sleeved on the supporting column, one end of the spring is fixedly connected with the supporting plate, and the other end of the spring is fixedly connected with the square sleeve.

5. The knitting yarn tensioning mechanism of the knitting machine as claimed in claim 4, characterized in that the lateral shifting mechanism includes two cylinders, two pistons, a spline shaft and a support ring, wherein,

the two cylinder bodies are symmetrically arranged on the corresponding square sleeves respectively, and spline-shaped through holes are respectively formed in opposite surfaces of the two cylinder bodies;

the two pistons are respectively and movably arranged in the corresponding cylinder bodies, and the pistons are connected with the inner walls of the cylinder bodies in a sealing way through sealing rings;

the spline shaft is movably arranged between the two cylinder bodies, and the end part of the spline shaft penetrates through the spline-shaped through hole and is fixedly connected with the piston;

the support ring is sleeved on the spline shaft, and the support ring is fixedly arranged at the middle position of the spline shaft, wherein the tensioning wheel is rotatably arranged on the support ring.

6. The braided wire tensioning mechanism of a braiding machine according to claim 1, wherein an inner circle Zhou Zhen of the annular groove of the tensioning wheel is lined with a plurality of arcuate rubber teeth.