A spindle used for a two-for-one twisting machine

Abstract

The present invention relates to the field of textile machinery technology, and specifically to a spindle used in a two-for-one twisting machine, comprising: a spindle rod, a spindle disc, a spindle seat, a radial shock absorbing mechanism, and an axial shock absorbing mechanism, wherein the spindle rod is fixed with a spindle disc at the upper part, and the spindle seat is connected to the lower part of the spindle rod in a rolling manner; a radial shock absorbing mechanism is also provided between the middle and lower part of the spindle rod and the inner wall of the spindle seat cavity. The present invention provides a radial shock absorbing mechanism, which uses the permanent repulsive force of a permanent magnet for shock absorption. On the one hand, it overcomes the defect that when mechanical materials such as springs are deformed, the elasticity of the material is lost due to material fatigue over a long period of time, thereby causing the performance of the shock absorbing mechanism to decline; on the other hand, by using the repulsive force of the permanent magnet for shock absorption, there is no need to contact the shock absorbing component with the rotating spindle rod, thereby causing energy loss when the spindle rod rotates, and greatly improving the rotation efficiency.

Description

Technical Field

[0001] The invention relates to the field of textile machinery, in particular to a spindle used on a two-for-one twisting machine. Background Art

[0002] The spindle is one of the main components for twisting and winding on a spinning machine. It is a combination of a slender rotating shaft supported at two points. There are spindles on twisting machines, roving machines and spinning machines. The key to improving and advancing the spindle structure is to reduce vibration and wear. Any spindle will inevitably vibrate and wear when rotating. Severe vibration will cause the bobbin to jump, causing the yarn to break or form poorly, and accelerate the wear of the machine parts, which is particularly obvious when rotating at high speed.

[0003] In the prior art, mechanical shock absorption methods such as springs and rubber are usually used to reduce vibration. Usually, the springs or rubber are directly placed against the outside of the spindle rod for shock absorption. Such a design has the following two major defects:

[0004] 1. The shock absorbing mechanism is made of materials such as springs or rubber. Over time, the springs and other mechanical materials will be deformed for a long time. Due to the fatigue limit of the material, the material elasticity will be lost, which will lead to a significant decrease in the performance of the shock absorbing mechanism.

[0005] 2. When the spindle rod rotates at high speed, there will be severe friction between the spindle rod and the mechanical shock-absorbing components, which will cause wear of the spindle rod. It will also cause energy loss when the spindle rod rotates, greatly reducing the service life and efficiency of the spindle. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, an object of the present invention is to provide a spindle for a two-for-one twisting machine, which can realize radial and axial vibration reduction of the spindle rod and greatly improve the service life and efficiency of the spindle.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, according to the first aspect of this invention, there is provided a spindle for a two-for-one twisting machine, comprising: a spindle bar, a spindle disc, a spindle seat, a radial damping mechanism, and an axial damping mechanism, wherein the spindle bar is fixed with a spindle disc at the upper part, and the spindle seat is rollingly connected at the lower part of the spindle bar; a rolling bearing 1 is connected between the middle and upper part of the spindle bar and the spindle seat, and a rolling bearing 2 is connected between the lower part of the spindle bar and the spindle seat; a radial damping mechanism is also provided between the middle and lower part of the spindle bar and the inner wall of the spindle seat cavity;

[0010] Preferably, the radial shock absorbing mechanism includes: an annular permanent magnet, an arc-shaped permanent magnet, a piston 1, and an annular oil cylinder. An annular permanent magnet is fixed to the middle and lower part of the spindle rod, and the annular oil cylinder is fixed to the middle and lower part of the inner side of the spindle seat. Four vertical oil cylinders are evenly distributed circumferentially on the annular oil cylinder, and an oil channel is opened on the vertical oil cylinder. The annular oil cylinder is connected to the bottom of the vertical oil cylinder through the oil channel. A piston 1 is slidably arranged in the vertical oil cylinder, and an arc-shaped permanent magnet is connected to the top of the piston 1.

[0011] Preferably, the axial shock absorbing mechanism includes: a bottom oil cylinder, a second piston, and a second oil nozzle. A permanent magnet is fixed to the bottom of the spindle rod. The bottom oil cylinder is arranged at the bottom of the spindle seat. The second piston is slidably arranged in the bottom oil cylinder. A permanent magnet is fixed to the top of the second piston.

[0012] Preferably, when the annular permanent magnet and the arc-shaped permanent magnet are arranged opposite to each other, the annular permanent magnet and the arc-shaped permanent magnet repel each other; when the permanent magnet one and the permanent magnet two are arranged opposite to each other, the permanent magnet one and the permanent magnet two repel each other.

[0013] Preferably, an oil pressure sensor 1 is provided at the middle of the inner wall of the annular oil cylinder, a display 1 is provided at the middle of the outer wall of the spindle seat, an oil pressure sensor 2 is provided at the bottom of the bottom oil cylinder, and a display 2 is provided at the bottom of the outer wall of the spindle seat.

[0014] Preferably, the oil pressure sensor 1 is electrically connected to the display 1, and the oil pressure sensor 2 is electrically connected to the display 2.

[0015] Preferably, an oil nozzle 1 is provided at the upper middle portion of the spindle rod, and an oil nozzle 2 is provided at the lower portion of the spindle rod. The oil nozzle 1 is connected to the annular oil cylinder, and the oil nozzle 2 is connected to the bottom oil cylinder.

[0016] Preferably, the annular permanent magnet and the arc-shaped permanent magnet are arranged opposite to each other, and the heights of the annular permanent magnet and the arc-shaped permanent magnet are equal.

[0017] Preferably, the second permanent magnet is cylindrical, and the diameter of the cylinder is smaller than the diameter of the inner wall of the ingot seat.

[0018] Preferably, the permanent magnet one and the permanent magnet two are arranged opposite to each other, and the diameter of the permanent magnet one is smaller than the diameter of the permanent magnet two.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a spindle for a two-for-one twisting machine, which has the following beneficial effects:

[0021] 1. In the prior art, mechanical shock absorption methods such as springs and rubbers are usually used for shock absorption. Usually, springs or rubbers are directly placed against the outside of the spindle rod for shock absorption. Shock absorption mechanisms made of materials such as springs or rubbers will deform permanently over time, and the fatigue limit of the materials will cause the loss of elasticity of the materials, thereby greatly reducing the performance of the shock absorption mechanism. However, the permanent repulsive force of the magnet is used in the present application. During the shock absorption process, there is no elastic loss caused by the permanent deformation of mechanical materials such as springs, which greatly improves the service life of the shock absorption mechanism.

[0022] 2. In the prior art, when the spindle rod rotates at high speed, the spindle rod and the mechanical shock-absorbing component will have severe friction, which will cause wear of the spindle rod, and will also cause energy loss when the spindle rod rotates, greatly reducing the service life and efficiency of the spindle. In the present application, the shock-absorbing mechanism does not need to contact the spindle rod, and the spindle rod does not have any wear and any rotation resistance during high-speed rotation, which greatly improves the rotation efficiency and service life of the spindle rod.

[0023] 3. By setting an oil pressure sensor in the oil cylinder, the working condition of the shock absorbing mechanism can be monitored in real time, and the oil pressure can be read intuitively through the display. According to the oil pressure conditions, the hydraulic oil can be replenished through the oil nozzle in time to prevent the performance of the shock absorbing mechanism from deteriorating, resulting in spindle vibration, yarn mixing and spindle wear.

[0024] 4. The permanent magnet is driven to move by the oil cylinder driving the piston, which can adapt to the shock absorption of spindle rods of different thicknesses, greatly improving the application range of the shock absorption mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is an overall schematic diagram of the spindle of the present invention;

[0027] Figure 2 A cross-sectional view of a spindle of the present invention;

[0028] Figure 3 A top view of the radial shock absorbing structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the oil pressure detection mechanism of the present invention;

[0030] Figure 5 Schematic diagram of the oil pressure detection mechanism in the present invention.

[0031] In the figure: 1, spindle rod, 2, spindle plate, 3, spindle seat, 4, rolling bearing 1, 5, oil nozzle 1, 6, rolling bearing 2, 7, annular permanent magnet, 8, arc-shaped permanent magnet, 9, piston 1, 10, annular cylinder, 11, permanent magnet 1, 12, permanent magnet 2, 13, piston 2, 14, bottom cylinder, 15, oil nozzle 2, 16, vertical cylinder, 17, oil channel, 18, oil pressure sensor 1, 19, display 1, 20, oil pressure sensor 2, 21, display 2. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of this article clearer, the technical solutions in the embodiments of this article will be clearly and completely described below in conjunction with the drawings in the embodiments of this article. Obviously, the described embodiments are part of the embodiments of this article, not all of the embodiments. Based on the embodiments in this article, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this article. It should be noted that the embodiments in this article and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0033] Unless the context clearly requires otherwise, throughout the specification and claims, the words "include", "comprising" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, in the sense of "including but not limited to".

[0034] Embodiment 1

[0035] See also Figure 1-2 The present invention provides a spindle for a two-for-one twisting machine, comprising: a spindle rod 1, a spindle disc 2, a spindle seat 3, a radial damping mechanism, and an axial damping mechanism, wherein the spindle rod 1 is fixed with the spindle disc 2 at the upper part, and the spindle seat 3 is rollingly connected with the spindle rod 1 at the lower part; a radial damping mechanism is also arranged between the middle and lower part of the spindle rod 1 and the inner wall of the cavity of the spindle seat 3;

[0036] Furthermore, a rolling bearing 1 4 is connected between the upper part of the spindle rod 1 and the spindle seat 3 , and a rolling bearing 2 6 is connected between the lower part of the spindle rod 1 and the spindle seat 3 .

[0037] Specifically, the annular permanent magnet 7 and the arc-shaped permanent magnet 8 are arranged opposite to each other, and the annular permanent magnet 7 and the arc-shaped permanent magnet 8 have the same height.

[0038] Specifically, the permanent magnet 2 12 is cylindrical, and the diameter of the cylinder is smaller than the diameter of the inner wall of the ingot base 3 .

[0039] Specifically, the permanent magnet 1 11 and the permanent magnet 2 12 are arranged opposite to each other, and the diameter of the permanent magnet 1 11 is smaller than the diameter of the permanent magnet 2 12 .

[0040] Embodiment 2

[0041] See also Figure 2-3 The radial damping mechanism includes: an annular permanent magnet 7, an arc-shaped permanent magnet 8, a piston 9, and an annular oil cylinder 10. The annular permanent magnet 7 is fixed to the middle and lower part of the spindle rod 1, and the annular oil cylinder 10 is fixed to the middle and lower part of the inner side of the spindle seat 3. The annular oil cylinder 10 has four vertical oil cylinders 16 distributed equidistantly in the circumferential direction. The vertical oil cylinder 16 is provided with an oil channel 17. The annular oil cylinder 10 is connected to the bottom of the vertical oil cylinder 16 through the oil channel 17. A piston 9 is slidably arranged in the vertical oil cylinder 16, and the top of the piston 9 is connected to the arc-shaped permanent magnet 8.

[0042] Furthermore, an oil nozzle 5 is provided in the middle and upper part of the spindle rod 1, and the oil nozzle 5 is connected to the annular oil cylinder 10. An oil pressure sensor 18 is provided in the middle of the inner wall of the annular oil cylinder 10, and a display 19 is provided in the middle of the outer wall of the spindle seat 3.

[0043] In the above scheme, hydraulic oil is injected through the oil nozzle 5, and the oil pressure sensor 18 can detect the oil pressure in the annular cylinder 10 in real time, and the staff can read the oil pressure in real time from the display 19; while the hydraulic oil is injected, the piston 9 is driven by the hydraulic oil to drive the arc permanent magnet 8 to approach the annular permanent magnet 7, and the repulsive force between the arc permanent magnet 8 and the annular permanent magnet 7 gradually increases.

[0044] At the same time, the present application drives the arc-shaped permanent magnet 8 to move by the annular cylinder 10 driving the piston 9, and can adjust the clamping space of multiple arc-shaped permanent magnets 8, so as to adapt to the clamping of spindle rods 1 of different thicknesses, thereby greatly improving the use range of the shock absorbing mechanism.

[0045] In the above scheme, when the spindle rod 1 rotates at different speeds, its vibration amplitude is different, so the required shock absorption performance of the shock absorption mechanism is different. Therefore, according to the actual spindle rod rotation speed requirements, the hydraulic oil can be injected or discharged through the oil nozzle 15 in time to adjust the shock absorption performance of the shock absorption mechanism in time, thereby greatly improving the service life of the spindle. Furthermore, the present application adopts the permanent repulsive force of the magnet. During the shock absorption process, there is no elastic loss caused by the long-term deformation of mechanical materials such as springs, which greatly improves the service life of the shock absorption mechanism.

[0046] Embodiment 3

[0047] See also Figure 2 The axial shock absorbing mechanism includes: a bottom oil cylinder 14, a second piston 13, and a second oil nozzle 15. A permanent magnet 11 is fixed to the bottom of the spindle rod 1. The bottom oil cylinder 14 is arranged at the bottom of the spindle seat 3. The second piston 13 is slidably arranged in the bottom oil cylinder 14. A permanent magnet 12 is fixed to the top of the second piston 13.

[0048] Specifically, a second oil nozzle 15 is provided at the lower part of the spindle rod 1 , and the second oil nozzle 15 is connected to the bottom oil cylinder 14 .

[0049] In the above scheme, during the rotation of the spindle rod 1, the permanent magnet 11 generates an axial repulsive force to prevent the spindle rod 1 from axial vibration, which is different from the existing spindle rod that needs to be in direct contact with the shock absorbing mechanism. By using the permanent repulsive force of the magnet, there is no elastic loss caused by long-term deformation of mechanical materials such as springs during the shock absorption process, which greatly improves the service life of the shock absorption mechanism.

[0050] In the above scheme, the radial damping mechanism will directly abut the spindle rod 1. When the spindle rod 1 rotates at high speed, the existing damping mechanism will generate huge resistance, so that the spindle rod 1 will lose a lot of kinetic energy, greatly reducing its working efficiency. At the same time, under high-speed rotation, the damping mechanism will also wear the surface of the spindle rod 1. Over time, the structural strength of the spindle rod 1 will be greatly reduced, and even the spindle rod 1 will be bent and deformed, greatly reducing its service life.

[0051] Embodiment 4

[0052] like Figure 4 As shown, an oil pressure sensor 18 is provided at the middle of the inner wall of the annular oil cylinder 10, and a display 19 is provided at the middle of the outer wall of the spindle seat 3;

[0053] like Figure 5 As shown, a second oil pressure sensor 20 is provided at the bottom of the bottom oil cylinder 14 , and a second display 21 is provided at the bottom of the outer wall of the spindle seat 3 .

[0054] Furthermore, the oil pressure sensor 18 is electrically connected to the display 19 , and the oil pressure sensor 2 20 is electrically connected to the display 21 .

[0055] The present invention combines the repulsive force between the permanent magnets and the permanent molecular repulsive force of the hydraulic oil into a shock absorbing mechanism, which has the following technical advantages:

[0056] First, in the prior art, mechanical shock absorption methods such as springs and rubbers are usually used for shock absorption, and the springs or rubbers are usually directly placed against the outside of the spindle rod for shock absorption. The shock absorption mechanism composed of materials such as springs or rubbers will deform permanently over time, and the fatigue limit of the material will cause the material elasticity loss, thereby causing a significant decrease in the performance of the shock absorption mechanism; while the present application uses the permanent repulsive force of the magnet, and during the shock absorption process, there is no elasticity loss caused by the permanent deformation of mechanical materials such as springs, which greatly improves the service life of the shock absorption mechanism.

[0057] Secondly, in the prior art, when the spindle rod rotates at high speed, the spindle rod and the mechanical shock absorbing component will have severe friction, which will cause wear of the spindle rod, and will also cause energy loss when the spindle rod rotates, greatly reducing the service life and efficiency of the spindle. In the present application, the shock absorbing mechanism does not need to contact the spindle rod, and the spindle rod does not have any wear and any rotation resistance during high-speed rotation, which greatly improves the rotation efficiency and service life of the spindle rod.

[0058] Finally, by setting an oil pressure sensor in the oil cylinder, the working condition of the shock absorbing mechanism can be monitored in real time, and the oil pressure can be read intuitively through the display. According to the oil pressure conditions, the hydraulic oil can be replenished through the oil nozzle in time to prevent the performance of the shock absorbing mechanism from deteriorating, resulting in spindle vibration, yarn mixing and spindle wear, etc.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spindle for a two-for-one twisting machine, comprising: A spindle rod (1), a spindle plate (2), a spindle seat (3), a radial damping mechanism, and an axial damping mechanism, characterized in that a spindle plate (2) is fixed to the upper part of the spindle rod (1), and the lower part of the spindle rod (1) is rollingly connected to the spindle seat (3); a rolling bearing 1 (4) is connected between the upper and middle part of the spindle rod (1) and the spindle seat (3), and a rolling bearing 2 (6) is connected between the lower part of the spindle rod (1) and the spindle seat (3); and a radial damping mechanism is also provided between the lower and middle part of the spindle rod (1) and the inner wall of the cavity of the spindle seat (3); The radial damping mechanism comprises: an annular permanent magnet (7), an arc-shaped permanent magnet (8), a piston one (9), and an annular oil cylinder (10); the annular permanent magnet (7) is fixed to the middle and lower part of the spindle rod (1); the annular oil cylinder (10) is fixed to the middle and lower part of the inner side of the spindle seat (3); four vertical oil cylinders (16) are equidistantly distributed in the circumferential direction of the annular oil cylinder (10); an oil passage (17) is provided on the vertical oil cylinder (16); the annular oil cylinder (10) is connected to the bottom of the vertical oil cylinder (16) through the oil passage (17); a piston one (9) is slidably arranged in the vertical oil cylinder (16); the top of the piston one (9) is connected to the arc-shaped permanent magnet (8); The axial damping mechanism comprises: a bottom oil cylinder (14), a second piston (13), and a second oil nozzle (15); a first permanent magnet (11) is fixed to the bottom of the spindle rod (1); the bottom oil cylinder (14) is arranged at the bottom of the spindle seat (3); the second piston (13) is slidably arranged in the bottom oil cylinder (14); and a second permanent magnet (12) is fixed to the top of the second piston (13); An oil pressure sensor (18) is disposed in the middle of the inner wall of the annular oil cylinder (10), and a display (19) is disposed in the middle of the outer wall of the spindle seat (3); A second oil pressure sensor (20) is provided at the bottom of the bottom oil cylinder (14), and a second display (21) is provided at the bottom of the outer wall of the spindle seat (3); The annular permanent magnet (7) and the arc-shaped permanent magnet (8) are arranged opposite to each other, and the heights of the annular permanent magnet (7) and the arc-shaped permanent magnet (8) are equal; the permanent magnet one (11) and the permanent magnet two (12) are arranged opposite to each other, and the diameter of the permanent magnet one (11) is smaller than the diameter of the permanent magnet two (12).

2. A spindle for a two-for-one twisting machine according to claim 1, characterized in that: When the annular permanent magnet (7) and the arc-shaped permanent magnet (8) are arranged relative to each other, the annular permanent magnet (7) and the arc-shaped permanent magnet (8) repel each other; when the permanent magnet one (11) and the permanent magnet two (12) are arranged relative to each other, the permanent magnet one (11) and the permanent magnet two (12) repel each other.

3. A spindle for a two-for-one twisting machine according to claim 2, characterized in that: The oil pressure sensor 1 (18) is electrically connected to the display 1 (19), and the oil pressure sensor 2 (20) is electrically connected to the display 2 (21).

4. A spindle for a two-for-one twisting machine according to claim 3, characterized in that: The spindle rod (1) is provided with a first oil nozzle (5) at the upper middle part, and the spindle rod (1) is provided with a second oil nozzle (15) at the lower part. The first oil nozzle (5) is connected to the annular oil cylinder (10), and the second oil nozzle (15) is connected to the bottom oil cylinder (14).

5. A spindle for a two-for-one twisting machine according to claim 4, characterized in that: The second permanent magnet (12) is cylindrical, and the diameter of the cylinder is smaller than the diameter of the inner wall of the ingot seat (3).

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