Yarn clearing mechanism of collective doffing spinning frame

By introducing a pneumatic telescopic rod and spring design into the collective doffing spinning machine, combined with a chute and ball bearing structure, the problems of yarn breakage and stability in the yarn clearing mechanism are solved, achieving efficient and stable tail yarn cleaning and improved spinning quality.

CN224243336UActive Publication Date: 2026-05-15HUARUI CHINA SEWING THREAD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUARUI CHINA SEWING THREAD
Filing Date
2025-06-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The yarn clearing mechanism of existing collective doffing spinning machines is prone to yarn breakage during use and lacks stability, affecting spinning efficiency and quality.

Method used

The design employs a pneumatic telescopic rod and spring to enable the yarn removal component to extend and retract. Combined with a chute, guide groove, and ball bearing structure, it ensures stable horizontal movement of the yarn clearing seat on the guide rail surface, reducing wear and vertical movement.

Benefits of technology

It enables effective cleaning of yarn tails without affecting spinning operations, improving spinning quality and stability, and reducing wear and frictional resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a yarn cleaning mechanism of a collective doffing spinning frame, which belongs to the technical field of spinning frame parts, a yarn cleaning mechanism body comprises a yarn cleaning seat, the bottom of the yarn cleaning seat is in rolling connection with a guide rail, the side face of the yarn cleaning seat is provided with a telescopic opening, one end of the telescopic opening is fixedly communicated with a mounting groove, and a yarn remover body is arranged in the mounting groove. According to the yarn cleaning mechanism of the collective doffing spinning frame, the pneumatic telescopic rods and the springs are arranged, so that the yarn cleaning piece has a telescopic function, the yarn cleaning piece can stretch out to clean tail yarn during use, and the yarn cleaning device is convenient to use and high in practicability. When not used, the yarn clearing seat can be contracted into the mounting groove without affecting spinning work, the yarn clearing seat can stably and horizontally reciprocate on the surface of the guide rail through the arranged sliding groove, guide groove and balls, meanwhile, abrasion is reduced, and the yarn clearing seat cannot move up and down.
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Description

Technical Field

[0001] This utility model relates to the technical field of ring spinning machine components, and more specifically, to a yarn clearing mechanism for a collective doffing ring spinning machine. Background Technology

[0002] Automatic collective doffing spinning machines are key equipment for achieving efficient and automated production in the modern textile industry. By integrating mechanical, electrical, pneumatic and intelligent control technologies, they significantly improve spinning efficiency and product quality.

[0003] Currently, the yarn clearing mechanism of commonly used collective doffing spinning machines may cause yarn breakage during use, thus affecting spinning operations. Moreover, it lacks stability during movement. For example, the yarn clearing mechanism of the collective doffing spinning machine disclosed in CN 204509585U includes a base, a cutter for cleaning the tail yarn on the spindle plate, and a yarn remover for cleaning the tail yarn at the bottom of the spindle. The cutter is mounted on the base, and the yarn remover with toothed blades or brushes is mounted on the base and located below the cutter.

[0004] As can be seen from the above-disclosed scheme, the toothed blades or brushes of the desander are in fixed positions. When the tail yarn is not being cleaned, they may accidentally break the yarn, affecting the spinning process and reducing work efficiency. Furthermore, the wear-resistant sleeve is slidably connected to the guide rail, which not only results in high frictional resistance, but also the wear-resistant sleeve is made of polymer materials or oil-containing materials, which have insufficient support stability. After friction heating, the contact point may soften and deform, causing the seat to move up and down, reducing its movement stability and thus affecting the spinning quality. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a yarn clearing mechanism for a collective doffing spinning machine. This yarn clearing mechanism, through the setting of a pneumatic telescopic rod and spring, enables the yarn removal component to have a telescopic function. When in use, it can extend to clean the tail yarn, and when not in use, it can retract into the mounting groove without affecting the spinning operation. Furthermore, through the setting of sliding grooves, guide grooves, and ball bearings, the yarn clearing seat can stably perform horizontal reciprocating motion on the surface of the guide rail, while reducing wear and preventing the yarn clearing seat from moving up and down.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A yarn clearing mechanism for a collective doffing spinning machine includes a yarn clearing mechanism body, which includes a yarn clearing seat. A guide rail is rotatably connected to the bottom of the yarn clearing seat. A telescopic opening is provided on the side of the yarn clearing seat, and one end of the telescopic opening is fixedly connected to an installation groove. A yarn remover body is disposed inside the installation groove. Symmetrical pneumatic telescopic rods are fixedly connected to the back of the yarn remover body. A pressure plate is fastened to the surface of the yarn clearing seat by screws. The pressure plate has countersunk holes on its surface. This yarn clearing mechanism for the collective doffing spinning machine, through the provided pneumatic telescopic rods and springs, enables the yarn remover to extend and retract during use to clean the tail yarn. When not in use, it can retract into the installation groove without affecting spinning operations. Furthermore, through the provided sliding grooves, guide grooves, and ball bearings, the yarn clearing seat can stably perform horizontal reciprocating motion on the surface of the guide rail, reducing wear and preventing the yarn clearing seat from moving up and down.

[0008] Furthermore, the yarn remover body includes a yarn remover plate, a yarn remover component is fixedly connected to the surface of the yarn remover plate, and an axially symmetrical fixing rod is fixedly connected to the surface of the yarn remover plate. A spring is movably sleeved at one end of the fixing rod. When the yarn remover component extends out of the telescopic opening, the spring is in a state of compressed elastic force, which facilitates the yarn remover component to quickly retract and reset through the elastic force.

[0009] Furthermore, a groove is provided at one end of the yarn clearing seat, and a ball bearing is rotatably connected to the inner wall of the groove. The ball bearing is evenly distributed along the length of the groove, and the ball bearing can reduce the wear between the yarn clearing seat and the guide rail surface.

[0010] Furthermore, a positioning rod is fixedly connected to the inner wall of the mounting groove. One end of the positioning rod is movably connected to one end of the spring. The size of the positioning rod is the same as that of the fixing rod. The positioning rod and the fixing rod facilitate the positioning of both ends of the spring.

[0011] Furthermore, the guide rail has a guide groove on its surface and a drain hole at the bottom of the guide groove. The inner wall of the guide groove is movably connected to the surface of the ball. The guide groove can increase the contact area with the ball, while the drain hole can prevent dust from accumulating in the guide groove.

[0012] Furthermore, the inner wall of the mounting groove has symmetrical connecting holes, and the inner wall of the connecting holes is fixedly connected to the surface of the pneumatic telescopic rod, which facilitates the positioning of the pneumatic telescopic rod.

[0013] Furthermore, the surface of the yarn clearing seat has a threaded hole, which is coaxial with the countersunk hole. The countersunk hole can prevent one end of the screw from protruding and getting caught on the yarn.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses a pneumatic telescopic rod and spring to make the yarn removal part telescopic. When in use, it can extend to clean the tail yarn, and when not in use, it can retract into the installation groove without affecting the spinning operation.

[0016] (2) This solution uses a sliding groove, guide groove and ball bearing to make the yarn clearing seat move horizontally and reciprocally on the surface of the guide rail, which reduces wear and prevents the yarn clearing seat from moving up and down. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mounting slot of this utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the yarn remover body structure;

[0020] Figure 4 for Figure 2 A schematic diagram of the yarn clearing seat structure;

[0021] Figure 5 This is a cross-sectional view of the guide rail structure of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Yarn clearing mechanism body; 2. Yarn clearing seat; 21. Mounting groove; 22. Telescopic opening; 23. Threaded hole; 24. Slide groove; 25. Ball bearing; 26. Positioning rod; 27. Connecting hole; 3. Yarn remover body; 31. Yarn remover plate; 32. Yarn remover component; 33. Fixing rod; 34. Spring; 35. Pneumatic telescopic rod; 4. Pressure plate; 41. Countersunk hole; 5. Guide rail; 51. Guide groove; 52. Leakage hole. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1-5A yarn clearing mechanism for a collective doffing spinning machine includes a yarn clearing mechanism body 1, which includes a yarn clearing seat 2. The surface of the yarn clearing seat 2 has screw holes for fixing components such as sensors and cutters. Its structure and working principle are well-known to those skilled in the art and will not be described in detail here. The yarn clearing seat 2 is used in combination with a spindle, and its connection method and working principle are existing technologies. A guide rail 5 is rolled to the bottom of the yarn clearing seat 2. A telescopic opening 22 is opened on the side of the yarn clearing seat 2. The size of the telescopic opening 22 is larger than the size of the yarn removal component 32, facilitating the telescopic movement of the yarn removal component 32. One end of the telescopic opening 22 is fixedly connected to an installation groove 21, and the yarn removal device body is installed inside the installation groove 21. 3. The yarn remover body 3 includes a yarn remover plate 31. A yarn remover component 32 is fixedly connected to the surface of the yarn remover plate 31. The yarn remover component 32 is a toothed blade or a brush. The brush can be a bristle brush or a wire brush, etc. It is used to cut the tail yarn by the toothed blade or to remove the tail yarn by rubbing the tail yarn with the brush. A fixed rod 33 with axial symmetry is fixedly connected to the surface of the yarn remover plate 31. A spring 34 is movably sleeved at one end of the fixed rod 33. The spring 34 is in a compressed elastic state when the yarn remover component 32 extends out of the telescopic opening 22, so that the yarn remover component 32 can quickly retract and reset through the elastic force. A symmetrical pneumatic telescopic rod 35 is fixedly connected to the back of the yarn remover body 3. A pressure plate 4 is fastened to the surface of the yarn clearing seat 2 by screws. The surface of the pressure plate 4 has a countersunk hole 41.

[0027] One end of the yarn clearing seat 2 has a groove 24, and the inner wall of the groove 24 is rotatably connected with balls 25. The balls 25 are evenly distributed along the length of the groove 24. The balls 25 can reduce the wear between the yarn clearing seat 2 and the guide rail 5. The inner wall of the mounting groove 21 is fixedly connected with a positioning rod 26. One end of the positioning rod 26 is movably connected to one end of the spring 34. The size of the positioning rod 26 is the same as that of the fixing rod 33. The positioning rod 26 and the fixing rod 33 facilitate the positioning of the two ends of the spring 34. The surface of the yarn clearing seat 2 has a threaded hole 23. The threaded hole 23 is coaxial with the countersunk hole 41. The countersunk hole 41 can prevent the screw from protruding and getting caught on the yarn.

[0028] The guide rail 5 has a guide groove 51 on its surface and a drain hole 52 at the bottom of the guide groove 51. The inner wall of the guide groove 51 is movably connected to the surface of the ball 25. The guide groove 51 can increase the contact area with the ball 25, and the drain hole 52 can prevent dust from accumulating in the guide groove 51. The inner wall of the mounting groove 21 has symmetrical connecting holes 27. The inner wall of the connecting hole 27 is fixedly connected to the surface of the pneumatic telescopic rod 35. The connecting hole 27 facilitates the positioning of the pneumatic telescopic rod 35.

[0029] The clearing mechanism of this collective doffing spinning machine is driven by a motor-driven pulley mechanism during operation.

[0030] The belt moves, and the transmission belt moves the yarn clearing seat 2, causing the cutter and yarn remover body 3 mounted on the yarn clearing seat 2 to reciprocate horizontally on the guide rail 5. At this time, the ball bearings 25 greatly reduce frictional resistance, thereby reducing wear. When it is necessary to clean the tail yarn at the bottom of the spindle, the pneumatic telescopic rod 35 is inflated, causing one end to extend, which in turn pushes the yarn remover plate 31 to drive the yarn remover component 32 to extend out of the telescopic opening 22. At this time, the spring 34 is compressed, generating a compressive force. Then, when the spindle rotates, the yarn remover component 32 cleans the tail yarn at the bottom of the spindle, and the cutter cleans the tail yarn on the spindle disc. After the yarn cleaning is completed, the pneumatic telescopic rod 35 exhausts air, thereby causing... The spring 34 releases its compression force, which pushes the yarn removal plate 31 to move, thereby causing the yarn removal component 32 to retract into the mounting groove 21 and reset. Through the pneumatic telescopic rod 35 and the spring 34, the yarn removal component 32 has a telescopic function. When in use, it can extend to clean the tail yarn, and when not in use, it can retract into the mounting groove 21 without affecting the spinning operation. Furthermore, through the sliding groove 24, guide groove 51 and ball bearing 25, the yarn clearing seat 2 can stably perform horizontal reciprocating motion on the surface of the guide rail 5, which reduces wear and prevents the yarn clearing seat 2 from moving up and down, thus improving the spinning quality.

[0031] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A yarn clearing mechanism for a collective doffing spinning machine, comprising a yarn clearing mechanism body (1), characterized in that: The yarn clearing mechanism body (1) includes a yarn clearing seat (2), a guide rail (5) is slidably connected to the bottom of the yarn clearing seat (2), a telescopic opening (22) is opened on the side of the yarn clearing seat (2), one end of the telescopic opening (22) is fixedly connected to an installation groove (21), a yarn remover body (3) is provided inside the installation groove (21), a symmetrical pneumatic telescopic rod (35) is fixedly connected to the back of the yarn remover body (3), and a pressure plate (4) is fastened to the surface of the yarn clearing seat (2) by screws, and a countersunk hole (41) is opened on the surface of the pressure plate (4).

2. The yarn clearing mechanism of a collective doffing spinning machine according to claim 1, characterized in that: The yarn remover body (3) includes a yarn remover plate (31), a yarn remover component (32) is fixedly connected to the surface of the yarn remover plate (31), and an axially symmetrical fixing rod (33) is fixedly connected to the surface of the yarn remover plate (31). A spring (34) is movably sleeved at one end of the fixing rod (33).

3. The yarn clearing mechanism of a collective doffing spinning machine according to claim 1, characterized in that: One end of the yarn clearing seat (2) has a groove (24), and the inner wall of the groove (24) is rotatably connected with balls (25), which are evenly distributed along the length of the groove (24).

4. The yarn clearing mechanism of a collective doffing spinning machine according to claim 2, characterized in that: A positioning rod (26) is fixedly connected to the inner wall of the mounting groove (21). One end of the positioning rod (26) is movably connected to one end of the spring (34). The size of the positioning rod (26) is the same as that of the fixing rod (33).

5. The yarn clearing mechanism of a collective doffing spinning machine according to claim 3, characterized in that: The guide rail (5) has a guide groove (51) on its surface, and a drain hole (52) is opened at the bottom of the guide groove (51). The inner wall of the guide groove (51) is movably connected to the surface of the ball (25).

6. The yarn clearing mechanism of a collective doffing spinning machine according to claim 1, characterized in that: The inner wall of the mounting groove (21) has symmetrical connecting holes (27), and the inner wall of the connecting holes (27) is fixedly connected to the surface of the pneumatic telescopic rod (35).

7. The yarn clearing mechanism of a collective doffing spinning machine according to claim 1, characterized in that: The surface of the yarn clearing seat (2) has a threaded hole (23), which is coaxial with the countersunk hole (41).