Single-spindle covering yarn unit and single-spindle covering yarn mechanism of rotor spinning machine
By using a single-spindle core-spun yarn unit on the rotor spinning machine and utilizing a stepper motor and yarn probe to detect the core yarn status, the problems of unstable operation of the spinning machine and timely shutdown when the core yarn breaks have been solved, ensuring normal yarn production.
Patent Information
- Application Number
- CN202423057518.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In existing rotor spinning machines, the clutch is prone to failure when spinning core-spun yarn, which causes the spinning machine to malfunction and cannot stop in time when the core yarn breaks, thus affecting the yarn quality.
A single-spindle core-spun yarn unit is used, which drives the core yarn cake to rotate through a stepper motor and uses a yarn detector to detect the condition of the core yarn, ensuring that the machine stops in time when the core yarn breaks, so as to avoid affecting the yarn quality.
This ensures the normal operation of the spinning machine and timely shutdown in case of core yarn breakage, thus guaranteeing the stability and consistency of yarn quality.
Smart Images
Figure CN223535327U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of spinning technology, specifically relating to a single-spindle core-spun yarn unit and a single-spindle core-spun yarn mechanism for rotor spinning machines. Background Technology
[0002] Core-spun yarn is a composite yarn composed of two or more fibers, one of which is a filament or staple fiber, and the other is a core or mother yarn. This composite structure gives core-spun yarn excellent performance. Existing rotor spinning machines typically use a collective drive method when spinning core-spun yarn, meaning that a motor is installed only at the head or tail of the spinning machine, and the motor controls all the core-spun yarn mechanisms on the spinning machine to start working. Alternatively, a clutch is installed on each core-spun yarn mechanism on the spinning machine, and the clutch controls the feeding of the core-spun yarn to a single spindle. However, this method is prone to malfunctions when the clutch engages during the spinning machine's operation, causing the core-spun yarn mechanism to malfunction. Furthermore, controlling the core-spun yarn to a single spindle via a clutch cannot stop the machine in time if the core yarn breaks, resulting in yarn without a core yarn and affecting yarn quality. Utility Model Content
[0003] The purpose of this invention is to provide a single-spindle core-spun yarn unit and core-spun yarn mechanism for a rotor spinning machine, which can ensure the normal operation of the spinning machine and stop the machine in time when the core yarn breaks, thus ensuring the spinning quality.
[0004] The technical solution of this utility model is as follows: a single-spindle core-spun yarn unit of a rotor spinning machine is mounted on the frame of the single-spindle spinning unit. The frame includes two crossbeams, both ends of which are connected by stiffening plates. Each stiffening plate has a guide plate on one side. Each crossbeam has vertical rods at both ends, one end of which is connected to the frame of the spinning machine. The vertical rods at both ends of the same crossbeam are connected by the frame, which is located below the crossbeam. The single-spindle core-spun yarn unit includes:
[0005] A core wire drive assembly, located on one side of a stiffener plate, includes a core wire frame and a core wire cake. The core wire frame is mounted on a guide wire mounting plate, and the core wire cake is mounted on the core wire frame. Bearing seats are provided on both the left and right sides of the core wire cake, and both bearing seats are mounted on the guide wire mounting plate. Each bearing seat has a first bearing and a second bearing, symmetrically arranged on both sides of the core wire cake. The first bearings on both sides of the core wire cake are connected to a first unwinding roller, and the second bearings on both sides of the core wire cake are connected to a second unwinding roller. The core wire cake is in contact with both the first and second unwinding rollers. A stepper motor is located on one side of the core wire cake, and the output end of the stepper motor is connected to a synchronous pulley. The synchronous pulley is connected to both the first and second unwinding rollers via a synchronous belt.
[0006] A wire probe assembly includes a wire probe mounting plate and a wire probe, wherein the wire probe mounting plate is mounted on a frame and the wire probe is disposed on the wire probe mounting plate;
[0007] The guide tube assembly includes a first guide tube, a second guide tube, and a third guide tube. The first guide tube is installed through the frame and is located below the yarn probe. One end of the first guide tube is connected to one end of the second guide tube via a connector. The other end of the second guide tube is connected to the third guide tube via a connector. The third guide tube is connected to a spinning machine mounted on the frame.
[0008] Furthermore, the frame is equipped with a motor control button, which is used to control the stop of the single-spindle spinning unit.
[0009] Furthermore, the probe is equipped with a control button for controlling the probe's on / off state. The probe is also equipped with an indicator light to show its on / off status. The probe is electrically connected to a stepper motor, and the stepper motor can be stopped by controlling the probe.
[0010] Furthermore, the spinning machine is equipped with a hollow rotor, and the third guide tube is connected to the hollow rotor on the spinning machine.
[0011] The single-spindle core-spun yarn mechanism of the rotor spinning machine is assembled from the aforementioned single-spindle core-spun yarn units.
[0012] The beneficial effects of this utility model are as follows: the first and second unwinding rollers are driven to rotate by a stepper motor, which in turn drives the core yarn cake to rotate. At the same time, a synchronous belt ensures the synchronicity and stability of the rotation of the first and second unwinding rollers and the core yarn cake. Since each single-spindle core-spun yarn unit is driven to rotate the core yarn cake by a stepper motor, the stability is high, ensuring the normal operation of the core-spun yarn mechanism. The condition of the core yarn is detected by a yarn detector. When the core yarn breaks, the single-spindle spinning unit can be stopped in time to avoid affecting the spinning quality. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a front view of a single-spindle core-spun yarn mechanism;
[0015] Figure 2 for Figure 1A magnified view of a section at point A in the middle;
[0016] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;
[0017] Figure 4 This is a side view of a single-spindle core-spun yarn mechanism;
[0018] Figure 5 This is a side view of a single-spindle core-spun yarn unit. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "one side," "one end," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0021] Existing rotor spinning machines use motors at the head or tail of the spinning machine to control all core-spun yarn mechanisms during spinning; or they use clutches on each spindle to control the feeding of individual core-spun yarns. However, this method is prone to clutch malfunctions during operation, leading to abnormal operation of the core-spun yarn mechanism. Furthermore, controlling the core-spun yarn by clutches cannot stop the machine in time when the core yarn breaks, resulting in poor yarn quality. Therefore, the inventors of this application provide a single-spindle core-spun yarn unit and core-spun yarn mechanism for a rotor spinning machine, which can ensure the normal operation of the spinning machine and promptly stop the single-spindle spinning unit when the core yarn breaks, thus ensuring yarn quality.
[0022] like Figure 1-5 As shown, the single-spindle core-spun yarn unit of the rotor spinning machine is mounted on the frame 1 of the single-spindle spinning unit. The frame 1 includes two crossbeams 101, both ends of which are connected by stiffeners 102. Each stiffener 102 has a guide plate 103 on one side. Each crossbeam 101 has a vertical rod 104 at both ends. One end of the vertical rod 104 is connected to the frame 105 of the spinning machine. The vertical rods 104 at both ends of the same crossbeam 101 are connected by the frame 105. The frame 105 is located below the crossbeam 101. The single-spindle core-spun yarn unit includes: a core yarn drive assembly 2, a yarn probe assembly 3, and a guide tube connector 4.
[0023] like Figure 2 As shown, the core wire drive assembly 2 is located on one side of the stiffener 102, including a core wire frame 201 and a core wire disc 202. The core wire frame 201 is mounted on the guide wire mounting plate 103, and the core wire disc 202 is mounted on the core wire frame 201. Bearing seats 203 are provided on both the left and right sides of the core wire disc 202. Both bearing seats 203 are mounted on the guide wire mounting plate 103. Each bearing seat 203 has a first bearing 204 and a second bearing 205, which are symmetrically arranged on both sides of the core wire disc 202. The first bearings 204 on both sides of the core yarn cake 202 are connected to the first unwinding roller 207, and the second bearings 205 on both sides of the core yarn cake 202 are connected to the second unwinding roller 208. The core yarn cake 202 is in contact with the first unwinding roller 204 and the second unwinding roller 205. A stepper motor 209 is provided on one side of the core yarn cake 202. The output end of the stepper motor 209 is connected to a synchronous pulley. The synchronous pulley is connected to the first unwinding roller 207 and the second unwinding roller 208 through a synchronous belt 206.
[0024] The frame 105 is equipped with a motor control button, which is used to control the operation and stop of the stepper motor 209.
[0025] Based on the above embodiments, the stepper motor 209 is turned on by the motor control button. The stepper motor 209 drives the synchronous pulley to rotate. The synchronous pulley, through the synchronous belt 206, causes the first unwinding roller 207 to rotate in the first bearing 204 and the second unwinding roller 208 to rotate in the second bearing 205. Under the action of friction, the first unwinding roller 207 and the second unwinding roller drive the core yarn cake 202 that abuts against them to rotate. At the same time, the synchronous belt 206 ensures the synchronicity and stability of the rotation of the first unwinding roller 207, the second unwinding roller 208 and the core yarn cake 202.
[0026] In this embodiment, as Figure 3 As shown, the wire probe assembly 3 includes a wire probe mounting plate 301 and a wire probe 302. The wire probe mounting plate 301 is mounted on the frame 105, and the wire probe 302 is disposed on the wire probe mounting plate 301.
[0027] The probe 302 is equipped with a control button, which is used to control the switch of the probe 302. The probe 302 is equipped with an indicator light to show its open and closed status. The probe 302 is electrically connected to the stepper motor 209, and the single-spindle spinning unit is stopped through the probe 302.
[0028] Based on the above embodiments, the status of the core yarn is detected by the yarn detector 302. When the yarn detector 302 detects that the core yarn is broken, the indicator light emits a red light to ensure that the staff knows that the core yarn is broken, and at the same time, the single-spindle spinning unit is controlled to stop spinning.
[0029] In this embodiment, as Figure 4 , Figure 5 As shown, the guide tube assembly 4 includes a first guide tube 401, a second guide tube 402, and a third guide tube 403. The first guide tube 401 is disposed through the frame 105 and is located below the yarn probe 302. The end of the first guide tube 401 is connected to one end of the second guide tube 402 through a connector 404. The other end of the second guide tube 402 is connected to the third guide tube 403 through a connector 404. The third guide tube 403 is connected to the spinning machine mounted on the frame 105.
[0030] The spinning machine is equipped with a hollow rotor, and the third guide tube 403 is connected to the hollow rotor on the spinning machine.
[0031] Based on the above embodiments, the broken core filament is placed at the end of the first guide tube 401. Under the suction of the spinning machine, the broken core filament passes through the first guide tube 401, the second guide tube 402 and the third guide tube 403 in sequence and enters the interior of the hollow rotor, where it combines with the cotton fibers inside the hollow rotor to form core-spun yarn.
[0032] In this embodiment, as Figure 1As shown, the single-spindle core-spun yarn mechanism of the rotor spinning machine is assembled from the aforementioned single-spindle core-spun yarn units.
[0033] The working principle of this utility model is as follows: Before the spinning machine starts, a section of core yarn is pulled out from the core yarn cake 202. The yarn probe 302 is opened by the control button, the pulled-out core yarn is passed through the yarn probe 302 and placed in the first guide tube 401. The core yarn cake 202 is placed on the core yarn holder 201. The spinning machine and stepper motor 209 are started. The stepper motor 209 drives the synchronous belt pulley to rotate. The synchronous belt pulley causes the first unwinding roller 207 to rotate in the first bearing 204 through the synchronous belt 206, and causes the second unwinding roller to rotate. The unwinding roller 208 rotates within the second bearing 205. Under the action of friction, the first unwinding roller 207 and the second unwinding roller 208 drive the core yarn cake 202 that it is in contact with to rotate. At the same time, the spinning machine draws the core yarn into the interior of the first guide tube 401, and through the second guide tube 402 and the third guide tube 403, the core yarn enters the interior of the hollow rotor and combines with the cotton fibers in the hollow rotor to form core-spun yarn. During this process, the yarn detector 302 is in the open state to detect whether the core yarn is broken.
[0034] When the yarn detector 302 detects a broken core yarn, the indicator light turns red, and the single-spindle spinning unit is shut down. During core yarn splicing, the stepper motor 209 is turned off via the motor control button. The core yarn cake 202 is removed from the core yarn holder 201, the broken end of the core yarn is located, a section of core yarn is pulled out, and the core yarn cake 202 is placed back on the core yarn holder 201. The stepper motor 209 is started, and then the core yarn is immediately pulled and fed alternately into the first guide tube 401 by both hands. The single-spindle spinning unit is started, so that the spinner generates suction on the core yarn, and the core yarn is placed into the guide groove of the yarn detector 202. After the yarn detector 202 detects the core yarn, the red indicator light goes out. The core yarn passes through the first guide tube 401, the second guide tube 402, and the third guide tube 403 in sequence into the hollow rotor and combines with the cotton fibers to form core-spun yarn.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A single-spindle core-spun yarn unit of a rotor spinning machine, mounted on a frame of a single-spindle spinning unit, the frame comprising two crossbeams, both ends of which are connected by stiffening plates, each stiffening plate having a guide plate on one side; each crossbeam having vertical rods at both ends, one end of which is connected to the frame of the spinning machine, the vertical rods at both ends of the same crossbeam being connected by the frame, the frame being located below the crossbeam, characterized in that... A single-spindle core-spun yarn unit includes: A core wire drive assembly, located on one side of a stiffener plate, includes a core wire frame and a core wire cake. The core wire frame is mounted on a guide wire mounting plate, and the core wire cake is mounted on the core wire frame. Bearing seats are provided on both the left and right sides of the core wire cake, and both bearing seats are mounted on the guide wire mounting plate. Each bearing seat has a first bearing and a second bearing, symmetrically arranged on both sides of the core wire cake. The first bearings on both sides of the core wire cake are connected to a first unwinding roller, and the second bearings on both sides of the core wire cake are connected to a second unwinding roller. The core wire cake is in contact with both the first and second unwinding rollers. A stepper motor is located on one side of the core wire cake, and the output end of the stepper motor is connected to a synchronous pulley. The synchronous pulley is connected to both the first and second unwinding rollers via a synchronous belt. A wire probe assembly includes a wire probe mounting plate and a wire probe, wherein the wire probe mounting plate is mounted on a frame and the wire probe is disposed on the wire probe mounting plate; The guide tube assembly includes a first guide tube, a second guide tube, and a third guide tube. The first guide tube is installed through the frame and is located below the yarn probe. One end of the first guide tube is connected to one end of the second guide tube via a connector. The other end of the second guide tube is connected to the third guide tube via a connector. The third guide tube is connected to a spinning machine mounted on the frame.
2. The single-spindle core-spun yarn unit of the rotor spinning machine according to claim 1, characterized in that, The frame is equipped with a motor control button, which is used to control the operation and stop of the stepper motor.
3. The single-spindle core-spun yarn unit of the rotor spinning machine according to claim 2, characterized in that, The probe is equipped with a control button for controlling its on / off state. The probe is also equipped with an indicator light to show its on / off status. The probe is electrically connected to a stepper motor and controls the stop of the single-spindle spinning unit.
4. The single-spindle core-spun yarn unit of the rotor spinning machine according to claim 3, characterized in that, The spinning machine is equipped with a hollow rotating cup, and the third guide tube is connected to the hollow rotating cup on the spinning machine.
5. A single-spindle core-spun yarn mechanism for a rotor spinning machine, characterized in that, The single-spindle core-spun yarn mechanism is assembled from single-spindle core-spun yarn units according to any one of claims 1-4.