A suspended active false twist winding device for a ring spinning machine

Abstract

The present invention discloses a suspended active false twist winding device for a ring spinning machine, which comprises a rotor, a stator support mounting plate, and an electromagnetic stator. The electromagnetic stator is arranged on the stator support mounting plate, and the rotor and the electromagnetic stator are coaxially arranged through magnetic field suspension. The magnetic rings on the rotor and the stator support mounting plate use the principle of repulsion of magnetic fields of the same polarity to suspend and center the rotor, thereby realizing support without physical contact; the driving and braking of the rotor are realized through the principle of an electric motor. The present invention adopts active steel collar technology and completely eliminates the steel wire ring used in ring spinning, thereby realizing active, controllable, high-speed false twist and winding of the ring spinning machine during the spinning process, thereby realizing high-speed spinning.

Description

Technical Field

[0001] The invention belongs to the technical field of ring spinning machines, and in particular relates to a suspended active false twist winding device for a ring spinning machine. Background Art

[0002] In the textile field, despite the emergence of new technologies with higher yarn speeds such as vortex spinning and rotor spinning, ring spinning is still the main technology for fine yarn production due to its unique yarn style, high strength, and wide spinning range. As the textile industry develops towards automation, intelligence, high speed, and low cost, the output speed of a single spindle in ring spinning has become the most important factor affecting production efficiency.

[0003] In principle, since the invention of ring spinning technology, the three processes of drafting, twisting and winding have been carried out simultaneously to form fine yarn. With the development of science and technology and the reduction of technology application costs, the increase in drafting speed can be achieved by increasing the roller speed and increasing the roller diameter to increase the fiber bundle output speed, and the twisting efficiency can be achieved through high-speed spindles, high-speed electric spindles and other technologies.

[0004] However, the winding formation is achieved by the passive sliding of the wire ring around the steel collar track under the drag of the spun yarn. This structure has become a bottleneck for the speed-up of ring spinning in a high-speed spinning environment: as the spindle speed increases, the sliding speed of the wire ring must also be increased synchronously. Under the influence of comprehensive factors such as spun yarn tension, wind resistance, contact friction and boundary friction, the wire ring is extremely easy to cause mutual wear, high-temperature bonding, and separation from the steel collar track. Technical research on winding is in the ascendant in the industry. By changing the manufacturing materials, improving the heat treatment technology, coating the wire ring and the steel collar with anti-friction materials, etc., the speed that the wire ring can withstand can be increased to a certain extent.

[0005] Patents such as "magnetic suspension steel collar", "a steel collar assembly driven to rotate supported by rollers", and "a rotatable steel collar supported by spherical rollers inside and outside" all attempt to adopt the method of "relative motion to reduce relative speed" from the perspective of mechanical structure, so that the steel collar and the wire ring rotate in the same direction to reduce the relative speed between the two and thus achieve high-speed winding; however, the structures described in these patents all retain the wire ring. Analysis shows that the relative speed between the wire ring and the steel collar can be reduced, but the speed of the wire ring relative to the fixed part of the spinning frame has not been reduced. As long as the wire ring exists and slides passively along the steel collar track under the traction of the yarn, the yarn tension, wind resistance, contact friction and boundary friction it is subjected to are still the decisive factors limiting the smooth operation of the wire ring; if a winding technology with a structural breakthrough cannot be proposed and studied and improved, large-scale speed-up of ring spinning will only be carried out within a very limited range. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a suspended active false twist winding device for a ring spinning frame. On the basis of not changing the original ring spinning principle, the rotor is suspended in the cavity of a stator support mounting plate by means of the interaction between magnetic forces. Another function of the magnetic force is to ensure that the rotor is always in the center of the cavity. By means of the electromagnetic field generated by multiple groups of built-in coils in the electromagnetic stator after energization, the rotation and braking of the rotor are actively controlled under a controlled state. A yarn guide groove is opened on the plane of the rotor, and the groove replaces the function of the original steel wire ring to complete the false twist and winding of the yarn. Because the stepping and servo technology of the electric motor is now very mature, this structure is easy to implement, thereby increasing the false twist winding speed of the yarn, and then realizing high-speed spinning under ring spinning technology.

[0007] In order to achieve the purpose of the above invention, the technical solution adopted is as follows:

[0008] A suspended active false twist winding device for a ring spinning machine comprises a rotor, a stator support mounting plate, and an electromagnetic stator. The electromagnetic stator is arranged on the stator support mounting plate, and the rotor and the electromagnetic stator are coaxially arranged through magnetic field suspension. The magnetic rings on the rotor and the stator support mounting plate use the principle of magnetic field repulsion of the same polarity to suspend and center the rotor, thereby realizing non-physical contact support; the driving and braking of the rotor are realized through the principle of electric motor, the active steel collar technology is adopted, and the steel wire ring used in ring spinning is completely eliminated, so that the ring spinning machine can realize active, controllable, high-speed false twist and winding during the spinning process, thereby realizing high-speed spinning.

[0009] Furthermore, the rotor includes a yarn guide groove, a yarn guide groove mounting plate, an active rotating steel collar, a magnetic ring, and a multi-pole pair of permanent magnetic tiles. The yarn guide groove is arranged in the yarn guide groove mounting plate, the yarn guide groove mounting plate is arranged at the upper end of the active rotating steel collar, the magnetic ring is arranged on the outside of the active rotating steel collar, and the multi-pole pair of permanent magnetic tiles is arranged at the lower end of the active rotating steel collar.

[0010] Furthermore, the material of the yarn guide groove is ceramic or alloy, and the yarn guide groove is arranged in the mounting hole of the yarn guide groove mounting plate by bonding or pressing.

[0011] Furthermore, the magnetic ring adopts a permanent magnetic ring or an electromagnetic ring.

[0012] Furthermore, the multi-pole pair permanent magnetic tiles are arranged on the lower end of the active rotating steel collar by bonding or pressing.

[0013] Furthermore, the stator support mounting plate includes a permanent magnet ring and a mounting plate. The permanent magnet ring is arranged on the mounting plate. The magnetic field of the permanent magnet ring causes the rotor to suspend and ensures that the rotor and the permanent magnet ring remain concentric.

[0014] Furthermore, the electromagnetic stator is composed of a protective housing, a built-in integrated circuit and an excitation coil winding. In fact, it is a combination of the motor excitation winding and the protective housing. The magnitude, direction, and on-off of the current are controlled by the control system. The driving coil drives the rotor to rotate, and the braking coil brakes the rotor.

[0015] Beneficial effects of the present invention: the suspended active false twist winding device of the ring spinning frame proposed by the present invention does not change the principle of ring spinning, so it does not affect the quality and style of the ring yarn; the present invention utilizes mature magnetic levitation technology to make the rotor and the electromagnetic stator contactless, and will not generate heat due to physical contact friction between the supports and unstable rotation speed, so it is easy to implement high-speed spinning; the present invention eliminates the wire ring on the ring spinning frame, and completely replaces the passive sliding of the wire ring with the active rotation of the steel collar, which completely solves the problem of yarn breakage caused by poor operation and detachment from the runway due to the above-mentioned reasons when the wire ring rotates at high speed, and there is no need to replace the wire ring regularly; structurally, the present invention is easier to implement the "fixed balloon height" technology in ring spinning, that is, fixing the "stator support mounting plate", which can reduce the yarn in the spinning process due to changes in the balloon height The phenomenon of yarn breakage caused by changes in yarn tension; the present invention is beneficial to the cleaning work of the wiping car of the spinning frame. After the wire ring is eliminated, the rotor is suspended in the cavity of the stator support mounting plate. In the shutdown state, the rotor can be conveniently removed for cleaning. The new winding device may no longer require workpieces such as wire ring cleaners and steel collar bases. After removing the rotor, the surface of the stator support mounting plate is more tidy, which is beneficial to the maintenance work of the wiping car of the spinning frame; the present invention is beneficial to the implementation of the "automatic jointing robot" technology, because the wire ring is eliminated and replaced by an open C-shaped yarn guide groove, and the process of the manipulator finding the head, leading the yarn, threading the yarn, and joining the yarn is greatly simplified, which will be very beneficial to improving the automation level of the spinning workshop; and because the spinning jointing process is easy to implement, the subsequent research on the "yarn online detection technology" will also be greatly benefited, and the entire spinning process will make great progress in the direction of intelligence and unmanned operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a suspended active false twist winding device of a ring spinning frame of the present invention;

[0018] Figure 2 It is a schematic diagram of the main structure of a suspended active false twist winding device for a ring spinning frame of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotor of the present invention;

[0020] Figure 4 It is a schematic diagram of the main structure of the rotor of the present invention;

[0021] Figure 5 for Figure 4 Cross-section along AA;

[0022] Figure 6 It is a schematic diagram of the top view of the rotor of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the stator support mounting plate of the present invention;

[0024] Figure 8 This is a schematic diagram of the front structural view of the stator support mounting plate of the present invention. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0027] Embodiment 1

[0028] like Figure 1-8 As shown, a suspended active false twist winding device for a ring spinning machine comprises a rotor 1, a stator support mounting plate 2, and an electromagnetic stator 3. The electromagnetic stator 3 is arranged on the stator support mounting plate 2, and the rotor 1 and the electromagnetic stator 3 are coaxially arranged through magnetic field suspension. The magnetic rings on the rotor 1 and the stator support mounting plate 2 use the principle of magnetic field repulsion of the same polarity to suspend and center the rotor 1, thereby realizing non-physical contact support; the driving and braking of the rotor are realized through the principle of electric motors, active steel collar technology is adopted, and the steel wire ring used in ring spinning is completely eliminated, so that the ring spinning machine can realize active, controllable, high-speed false twist and winding during the spinning process, thereby realizing high-speed spinning.

[0029] Furthermore, the rotor 1 includes a yarn guide groove 4, a yarn guide groove mounting plate 5, an active rotating steel collar 6, a magnetic ring 7, and a multi-pole pair of permanent magnetic tiles 8. The yarn guide groove 4 is arranged in the yarn guide groove mounting plate 5, the yarn guide groove mounting plate 5 is arranged at the upper end of the active rotating steel collar 6, the magnetic ring 7 is arranged on the outer side of the active rotating steel collar 6, and the multi-pole pair of permanent magnetic tiles 8 is arranged at the lower end of the active rotating steel collar 6.

[0030] Furthermore, the material of the yarn guide groove 4 is ceramic, and the yarn guide groove 4 is arranged in the mounting hole of the yarn guide groove mounting plate 5 by bonding.

[0031] Furthermore, the magnetic ring 7 is a permanent magnetic ring.

[0032] Furthermore, the multi-pole pair permanent magnetic tiles 8 are arranged on the lower end of the active rotating steel ring 6 by bonding.

[0033] Furthermore, the stator support mounting plate 2 includes a permanent magnet ring 9 and a mounting plate 10. The permanent magnet ring 9 is arranged on the mounting plate 10. The magnetic field of the permanent magnet ring 9 makes the rotor 1 suspend and ensures that the rotor 1 and the permanent magnet ring 9 remain concentric.

[0034] Furthermore, the electromagnetic stator 3 is composed of a protective housing, a built-in integrated circuit and an excitation coil winding. In fact, it is a combination of the motor excitation winding and the protective housing. The magnitude, direction, and on-off of the current are controlled by the control system. The driving coil drives the rotor to rotate, and the braking coil brakes the rotor.

[0035] Embodiment 2

[0036] like Figure 1-8 As shown, a suspended active false twist winding device for a ring spinning machine comprises a rotor 1, a stator support mounting plate 2, and an electromagnetic stator 3. The electromagnetic stator 3 is arranged on the stator support mounting plate 2, and the rotor 1 and the electromagnetic stator 3 are coaxially arranged through magnetic field suspension. The magnetic rings on the rotor 1 and the stator support mounting plate 2 use the principle of magnetic field repulsion of the same polarity to suspend and center the rotor 1, thereby realizing non-physical contact support; the driving and braking of the rotor are realized through the principle of electric motors, active steel collar technology is adopted, and the steel wire ring used in ring spinning is completely eliminated, so that the ring spinning machine can realize active, controllable, high-speed false twist and winding during the spinning process, thereby realizing high-speed spinning.

[0037] Furthermore, the rotor 1 includes a yarn guide groove 4, a yarn guide groove mounting plate 5, an active rotating steel collar 6, a magnetic ring 7, and a multi-pole pair of permanent magnetic tiles 8. The yarn guide groove 4 is arranged in the yarn guide groove mounting plate 5, the yarn guide groove mounting plate 5 is arranged at the upper end of the active rotating steel collar 6, the magnetic ring 7 is arranged on the outer side of the active rotating steel collar 6, and the multi-pole pair of permanent magnetic tiles 8 is arranged at the lower end of the active rotating steel collar 6.

[0038] Furthermore, the material of the yarn guide groove 4 is alloy, and the yarn guide groove 4 is arranged in the mounting hole of the yarn guide groove mounting plate 5 by pressure matching.

[0039] Furthermore, the magnetic ring 7 is an electromagnetic ring.

[0040] Furthermore, the multi-pole pair of permanent magnetic tiles 8 is arranged at the lower end of the active rotating steel ring 6 by means of pressure matching. The multi-pole pair of permanent magnetic tiles 8 is arranged at the lower end of the active rotating steel ring 6 by means of pressure matching.

[0041] Furthermore, the stator support mounting plate 2 includes a permanent magnet ring 9 and a mounting plate 10. The permanent magnet ring 9 is arranged on the mounting plate 10. The magnetic field of the permanent magnet ring 9 makes the rotor 1 suspend and ensures that the rotor 1 and the permanent magnet ring 9 remain concentric.

[0042] Furthermore, the electromagnetic stator 3 is composed of a protective housing, a built-in integrated circuit and an excitation coil winding. In fact, it is a combination of the motor excitation winding and the protective housing. The magnitude, direction, and on-off of the current are controlled by the control system. The driving coil drives the rotor to rotate, and the braking coil brakes the rotor.

[0043] The suspended active false twist winding device for a ring spinning frame proposed in the present invention does not change the principle of ring spinning, so it does not affect the quality and style of the ring yarn; the present invention utilizes mature magnetic levitation technology to make the rotor and the electromagnetic stator contactless, and will not generate heat due to physical contact friction between the supports and unstable rotation speed, so it is easy to implement high-speed spinning; the present invention eliminates the wire ring on the ring spinning frame, and completely replaces the passive sliding of the wire ring with the active rotation of the steel collar, which completely solves the problem of yarn breakage caused by poor operation and detachment from the runway due to the above-mentioned reasons when the wire ring rotates at a high speed, and there is no need to replace the wire ring regularly; structurally speaking, the present invention is easier to implement the "fixed balloon height" technology in ring spinning, that is, fixing the "stator support mounting plate", which can reduce the yarn tension caused by the change of balloon height during the spinning process. The phenomenon of broken ends due to force changes; the present invention is beneficial to the cleaning work of the wiping car of the spinning frame. After the wire ring is eliminated, the rotor is suspended in the cavity of the stator support mounting plate. In the shutdown state, the rotor can be conveniently removed for cleaning. The new winding device may no longer require workpieces such as the wire ring cleaner and the steel collar base. After removing the rotor, the surface of the stator support mounting plate is more tidy, which is beneficial to the maintenance work of the wiping car of the spinning frame; the present invention is beneficial to the implementation of the "automatic jointing robot" technology, because the wire ring is eliminated and replaced by an open C-shaped yarn guide groove, and the process of the manipulator searching for the head, leading the yarn, threading the yarn, and joining the yarn is greatly simplified, which will be very beneficial to improving the automation level of the spinning workshop; and because the spinning jointing process is easy to implement, the subsequent research on the "spinning online detection technology" will also be greatly benefited, and the entire spinning process will make great progress in the direction of intelligence and unmanned operation.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A suspended active false twist winding device for a ring spinning frame, characterized in that: It comprises a rotor (1), a stator support mounting plate (2), and an electromagnetic stator (3); the electromagnetic stator (3) is arranged on the stator support mounting plate (2); the rotor (1) and the electromagnetic stator (3) are coaxially arranged via magnetic field suspension; The rotor (1) comprises a yarn guide groove (4), a yarn guide groove mounting plate (5), an active rotating steel collar (6), a magnetic ring (7), and a multi-pole pair permanent magnetic tile (8); the yarn guide groove (4) is arranged in the yarn guide groove mounting plate (5), the yarn guide groove mounting plate (5) is arranged at the upper end of the active rotating steel collar (6), the magnetic ring (7) is arranged on the outer side of the active rotating steel collar (6), and the multi-pole pair permanent magnetic tile (8) is arranged at the lower end of the active rotating steel collar (6); The material of the yarn guide groove (4) is ceramic or alloy, and the yarn guide groove (4) is arranged in the installation hole of the yarn guide groove installation plate (5) by bonding or pressing; The stator support mounting plate (2) comprises a permanent magnet ring (9) and a mounting plate (10), the permanent magnet ring (9) being arranged on the mounting plate (10), the magnetic field of the permanent magnet ring (9) causing the rotor (1) to suspend and ensuring that the rotor (1) and the permanent magnet ring (9) remain concentric; The magnetic rings on the rotor (1) and the stator support mounting plate (2) enable the rotor (1) to be suspended and centered by the principle of magnetic fields of the same polarity repelling each other, thereby achieving support without physical contact; The magnetic ring (7) is a permanent magnetic ring or an electromagnetic ring; The multi-pole pair permanent magnetic tiles (8) are arranged on the lower end of the active rotating steel collar (6) by bonding or pressing; The electromagnetic stator (3) consists of a protective housing, a built-in integrated circuit and an excitation coil winding.

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