Single-spindle covering yarn unit and single-spindle covering yarn mechanism of rotor spinning machine
By designing a single-spinned core yarn unit in a rotary cup spinning machine, using a stepper motor to drive the core wire cake to rotate, and detect the core wire status through a wire detector, the clutch failure and core wire breakage in the prior art is solved. The problem of timely parking has achieved normal operation of the spinning machine and improved yarn quality.
Patent Information
- Application Number
- CN202411821032.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-02-14
AI Technical Summary
When the existing rotary cup spinning machine spinning core yarns, the clutch is prone to failure, resulting in the spinning machine's core yarn mechanism not operating normally and cannot stop in time when the core wire breaks, affecting the quality of the yarn.
A single-spinned core-covered yarn unit of a rotary cup spinning machine is designed, and the core wire cake is driven by a stepper motor to drive the rotation of the core wire cake and detect the state of the core wire through a wire detector to ensure that the timely stop when the core wire breaks.
The normal operation of the spinning machine is achieved, and the car is stopped in time when the core wire breaks to ensure the improvement of yarn quality.
Smart Images
Figure CN119433774A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of spinning, and in particular relates to a single-spindle core-spun yarn unit and a single-spindle core-spun yarn mechanism of a rotor spinning machine. Background Art
[0002] Core-spun yarn is a composite yarn composed of two or more fibers, one of which is filament or staple fiber, and the other is yarn core or mother yarn. This composite structure makes the core-spun yarn have excellent performance. Existing rotor spinning machines usually adopt collective transmission when spinning core-spun yarn, that is, only a motor is set at the head or tail of the spinning machine, and then all the core-spun yarn mechanisms on the spinning machine are controlled by the motor to start working; or a clutch is set on each spindle core-spun yarn mechanism on the spinning machine, and the clutch controls the feeding of a single spindle core-spun yarn. However, this method is prone to malfunction when the clutch is adsorbed during the operation of the spinning machine, resulting in the core-spun yarn mechanism of the spinning machine cannot operate normally, and the method of controlling the single spindle core-spun yarn by the clutch cannot stop in time when the core wire breaks, resulting in no core wire in the yarn, affecting the yarn quality. Summary of the invention
[0003] The purpose of the present invention is to provide a single-spindle core-spun yarn unit and a core-spun yarn mechanism of a rotor spinning machine, which can ensure the normal operation of the spinning machine and can stop the machine in time when the core yarn breaks, thereby ensuring the spinning quality.
[0004] The technical solution of the present invention is as follows: a single spindle core-spun yarn unit of a rotor spinning machine is arranged on a frame of the single spindle spinning unit, the frame comprises two crossbeams, both ends of the two crossbeams are connected by rib plates, one side of each rib plate is provided with a guide wire mounting plate; both ends of each crossbeam are provided with vertical rods, one end of the vertical rod is connected to the frame of the spinning machine, the vertical rods at both ends of the same crossbeam are connected by the frame, and the frame is located below the crossbeam, and the single spindle core-spun yarn unit comprises:
[0005] A core wire transmission assembly is arranged on one side of the rib plate, and includes a core wire frame and a core wire cake, the core wire frame is arranged on the guide wire mounting plate, and the core wire cake is arranged on the core wire frame; bearing seats are arranged on the left and right sides of the core wire cake, and the two bearing seats are arranged on the guide wire mounting plate, and each of the bearing seats is provided with a first bearing and a second bearing, and the first bearing and the second bearing are symmetrically arranged on both sides of the core wire cake, and the first bearings on the left and right sides of the core wire cake are commonly connected to the first wire withdrawal roller, and the second bearings on the left and right sides of the core wire cake are commonly connected to the second wire withdrawal roller, and the core wire cake fits the first wire withdrawal roller and the second wire withdrawal roller; a stepper motor is arranged on one side of the core wire cake, and the output end of the stepper motor is connected to a synchronous pulley, and the synchronous pulley is connected to the first wire withdrawal roller and the second wire withdrawal roller through a synchronous belt;
[0006] A wire detector assembly comprises a wire detector mounting plate and a wire detector, wherein the wire detector mounting plate is mounted on the frame, and the wire detector is arranged on the wire detector mounting plate;
[0007] The wire guide tube combination includes a first wire guide tube, a second wire guide tube and a third wire guide tube. The first wire guide tube is arranged on the frame and is located below the wire detector. The end of the first wire guide tube is connected to one end of the second wire guide tube through a joint, and the other end of the second wire guide tube is connected to the third wire guide tube through a joint. The third wire guide tube is connected to a spinning device installed on the frame.
[0008] Furthermore, a motor control button is provided on the frame, and the motor control button is used to control the stop of the single spindle spinning unit.
[0009] Furthermore, the wire detector is provided with a control button for controlling the switch of the wire detector. The wire detector is provided with an indicator light for displaying its open and closed state. The wire detector is electrically connected to the stepper motor, and the stop of the stepper motor is controlled by the wire detector.
[0010] Furthermore, the spinning device is provided with a hollow rotor cup, and the third wire guide tube is connected to the hollow rotor cup on the spinning device.
[0011] The single-spindle core-spun yarn mechanism of a rotor spinning machine is formed by splicing and assembling the single-spindle core-spun yarn units.
[0012] The beneficial effects of the present invention are as follows: the first wire withdrawal roller and the second wire withdrawal roller are driven to rotate by a stepper motor, and the first wire withdrawal roller and the second wire withdrawal roller drive the core wire cake to rotate. At the same time, a synchronous belt is used to ensure the synchronization and stability of the rotation of the first wire withdrawal roller, the second wire withdrawal roller and the core wire cake. Since each single-spindle core-spun yarn unit is driven to rotate by a stepper motor, the stability is high, ensuring the normal operation of the core-spun yarn mechanism; the state of the core wire is detected by a wire detector, and when the core wire is broken, it is ensured that the single-spindle spinning unit can stop in time to avoid affecting the spinning quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0014] Figure 1 This is the front view of the single-spindle core-spun yarn mechanism;
[0015] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0016] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;
[0017] Figure 4 It is a side view of a single-spindle core-spun yarn mechanism;
[0018] Figure 5 It is a side view of a single-spindle core-spun yarn unit. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "one end", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] When spinning core-spun yarn, the existing rotor spinning machine only sets a motor at the front or rear of the spinning machine, and then controls all the core-spun yarn mechanisms on the spinning machine to start working through the motor; or a clutch is set on the core-spun yarn mechanism of each spindle on the spinning machine, and the clutch controls the feeding of the core-spun yarn of a single spindle. However, this method is prone to malfunction when the clutch is adsorbed during operation of the spinning machine, resulting in the core-spun yarn mechanism of the spinning machine not being able to operate normally, and the method of controlling the core-spun yarn of a single spindle by the clutch cannot stop the machine in time when the core yarn breaks, resulting in poor spinning quality. In view of this, the inventor of the present application provides a single-spindle core-spun yarn unit and a core-spun yarn mechanism of a rotor spinning machine, which can ensure the normal operation of the spinning machine, and can control the single-spindle spinning unit to stop in time when the core yarn breaks, thereby ensuring the yarn quality.
[0022] like Figure 1-5 As shown, the single-spindle core-spun yarn unit of the rotor spinning machine is arranged on the frame 1 of the single-spindle spinning unit, and the frame 1 includes two crossbeams 101, and both ends of the two crossbeams 101 are connected by rib plates 102, and a guide wire mounting plate 103 is provided on one side of each rib plate 102; both ends of each crossbeam 101 are provided with vertical rods 104, and one end of the vertical rod 104 is connected to the frame 105 of the spinning machine, and the vertical rods 104 at both ends of the same crossbeam 101 are connected through the frame 105, and the frame 105 is located below the crossbeam 101, and the single-spindle core-spun yarn unit includes: a core wire transmission assembly 2, a wire detector assembly 3 and a wire guide tube combination 4.
[0023] like Figure 2 As shown, the core wire transmission assembly 2 is arranged on one side of the rib plate 102, including a core wire frame 201 and a core wire cake 202, the core wire frame 201 is arranged on the guide wire mounting plate 103, and the core wire cake 202 is arranged on the core wire frame 201; bearing seats 203 are arranged on the left and right sides of the core wire cake 202, and two bearing seats 703 are arranged on the guide wire mounting plate 103, and each bearing seat 203 is provided with a first bearing 204 and a second bearing 205, and the first bearing 204 and the second bearing 205 are symmetrically arranged on both sides of the core wire cake 202, and the core wire cake 202 is provided with a first bearing 204 and a second bearing 205. The first bearings 204 on the left and right sides of the wire cake 202 are commonly connected to the first wire withdrawal roller 207, and the second bearings 205 on the left and right sides of the core wire cake 202 are commonly connected to the second wire withdrawal roller 208, and the core wire cake 202 is in contact with the first wire withdrawal roller 204 and the second wire withdrawal roller 205; a stepper motor 209 is provided on one side of the core wire cake 202, and the output end of the stepper motor 209 is connected to a synchronous pulley, which is connected to the first wire withdrawal roller 207 and the second wire withdrawal roller 208 through a synchronous belt 206.
[0024] The frame 105 is provided with a motor control button, which is used to control the operation and stop of the stepper motor 209 .
[0025] Based on the above embodiment, the stepper motor 209 is turned on by the motor control button, and the stepper motor 209 drives the synchronous pulley to rotate. The synchronous pulley rotates the first wire withdrawal roller 207 in the first bearing 204 and the second wire withdrawal roller 208 in the second bearing 205 through the synchronous belt 206. Under the action of friction, the first wire withdrawal roller 207 and the second wire withdrawal roller drive the core wire cake 202 abutting against them to rotate. At the same time, the synchronous belt 206 ensures the synchronization and stability of the rotation of the first wire withdrawal roller 207, the second wire withdrawal roller 208 and the core wire cake 202.
[0026] In this embodiment, if Figure 3As shown, the wire detector assembly 3 includes a wire detector mounting plate 301 and a wire detector 302 . The wire detector mounting plate 301 is mounted on the frame 105 , and the wire detector 302 is disposed on the wire detector mounting plate 301 .
[0027] Among them, a control button is provided on the yarn detector 302, and the control button is used to control the switch of the yarn detector 302. An indicator light showing its open and closed state is provided on the yarn detector 302. The yarn detector 302 is electrically connected to the stepper motor 209, and the stop of the single spindle spinning unit is controlled by the yarn detector 302.
[0028] Based on the above embodiment, the state of the core wire is detected by the wire detector 302. When the wire detector 302 detects that the core wire is broken, the indicator light emits red light to ensure that the staff knows that the core wire is broken, and at the same time controls the single spindle spinning unit to stop spinning.
[0029] In this embodiment, if Figure 4 , Figure 5 As shown, the wire guide tube assembly 4 includes a first wire guide tube 401, a second wire guide tube 402 and a third wire guide tube 403. The first wire guide tube 401 is arranged on the frame 105, and the first wire guide tube 401 is located below the wire detector 302. The end of the first wire guide tube 401 is connected to one end of the second wire guide tube 402 through a joint 404, and the other end of the second wire guide tube 402 is connected to the third wire guide tube 403 through the joint 404, and the third wire guide tube 403 is connected to the spinning device installed on the frame 105.
[0030] Wherein, a hollow rotor is arranged on the spinning device, and the third wire guide tube 403 is connected with the hollow rotor on the spinning device.
[0031] Based on the above embodiment, the broken end of the core yarn is placed at the end of the first wire guide tube 401. Under the suction of the spinning machine, the broken end of the core yarn passes through the first wire guide tube 401, the second wire guide tube 402 and the third wire guide tube 403 in turn into the interior of the hollow rotor, and combines with the cotton fiber in the hollow rotor to form a core-spun yarn.
[0032] In this embodiment, if Figure 1 As shown, the single-spindle core-spun yarn mechanism of the rotor spinning machine is assembled by splicing the single-spindle core-spun yarn units.
[0033] The working principle of the present invention is as follows: before the spinning machine works, a section of the core wire on the core wire cake 202 is pulled out, the wire detector 302 is opened by the control button, the pulled core wire passes through the wire detector 302 and is placed in the first wire guide tube 401, the core wire cake 202 is placed on the core wire rack 201, the spinning machine and the stepper motor 209 are started, the stepper motor 209 drives the synchronous pulley to rotate, and the synchronous pulley drives the first wire withdrawal roller 207 to rotate in the first bearing 204 through the synchronous belt 206, so that the second wire withdrawal roller 207 rotates in the first bearing 204. The silk roller 208 rotates in the second bearing 205, and the first silk withdrawal roller 207 and the second silk withdrawal roller 208 drive the core silk cake 202 abutting against them to rotate under the action of friction. At the same time, the spinning device sucks the core silk into the first silk guide tube 401, and the core silk enters the hollow rotor cup through the second silk guide tube 402 and the third silk guide tube 403, and combines with the cotton fiber in the hollow rotor cup to form a core-spun yarn. In this process, the silk detector 302 is in an open state to detect whether the core silk is broken;
[0034] When the yarn detector 302 detects that the core yarn is broken, the indicator light turns red and the single spindle spinning unit is turned off. When the core yarn is connected, the stepper motor 209 is turned off by the motor control button, the core yarn cake 202 is removed from the core yarn rack 201, the broken end of the core yarn is found, a section of the core yarn is pulled out, and the core yarn cake 202 is replaced on the core yarn rack 201, the stepper motor 209 is started, and then the core yarn is immediately pulled and sent into the first wire guide tube 401 with both hands alternately, and the single spindle spinning unit is started, so that the spinning device generates suction to the core yarn, and the core yarn is placed in the wire guide groove of the yarn detector 202. After the yarn detector 202 detects the core yarn, the red indicator light goes out, and the core yarn passes through the first wire guide tube 401, the second wire guide tube 402, and the third wire guide tube 403 in turn into the hollow rotor cup to combine with the cotton fiber to form core-spun yarn.
[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A single-spindle core-spun yarn unit of a rotor spinning machine is arranged on a frame of the single-spindle spinning unit, the frame comprising two crossbeams, both ends of the two crossbeams are connected by rib plates, one side of each rib plate is provided with a guide wire mounting plate; both ends of each crossbeam are provided with vertical rods, one end of the vertical rod is connected to the frame of the spinning machine, the vertical rods at both ends of the same crossbeam are connected by the frame, and the frame is located below the crossbeam, characterized in that: Single spindle core yarn unit includes: A core wire transmission assembly is arranged on one side of the rib plate, and includes a core wire frame and a core wire cake, the core wire frame is arranged on the guide wire mounting plate, and the core wire cake is arranged on the core wire frame; bearing seats are arranged on the left and right sides of the core wire cake, and the two bearing seats are arranged on the guide wire mounting plate, and each of the bearing seats is provided with a first bearing and a second bearing, and the first bearing and the second bearing are symmetrically arranged on both sides of the core wire cake, and the first bearings on the left and right sides of the core wire cake are commonly connected to the first wire withdrawal roller, and the second bearings on the left and right sides of the core wire cake are commonly connected to the second wire withdrawal roller, and the core wire cake fits the first wire withdrawal roller and the second wire withdrawal roller; a stepper motor is arranged on one side of the core wire cake, and the output end of the stepper motor is connected to a synchronous pulley, and the synchronous pulley is connected to the first wire withdrawal roller and the second wire withdrawal roller through a synchronous belt; A wire detector assembly comprises a wire detector mounting plate and a wire detector, wherein the wire detector mounting plate is mounted on the frame, and the wire detector is arranged on the wire detector mounting plate; The wire guide tube combination includes a first wire guide tube, a second wire guide tube and a third wire guide tube. The first wire guide tube is arranged on the frame and is located below the wire detector. The end of the first wire guide tube is connected to one end of the second wire guide tube through a joint, and the other end of the second wire guide tube is connected to the third wire guide tube through a joint. The third wire guide tube is connected to a spinning device installed 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 provided 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 yarn detector is provided with a control button for controlling the switch of the yarn detector. The yarn detector is provided with an indicator light for displaying its open and closed state. The yarn detector is electrically connected to the stepper motor, and the stop of the single spindle spinning unit is controlled by the yarn detector.
4. The single-spindle core-spun yarn unit of the rotor spinning machine according to claim 3, characterized in that: The spinning device is provided with a hollow rotor cup, and the third wire guide tube is communicated with the hollow rotor cup on the spinning device.
5. The single-spindle core-spun yarn mechanism of the rotor spinning machine is characterized in that: The single-spindle core-spun yarn mechanism is formed by splicing and assembling the single-spindle core-spun yarn units described in any one of claims 1 to 4.