Drafting device for spinning machine capable of uniformly spreading yarns

Abstract

The utility model discloses a drafting device for a spinning machine capable of uniformly spreading yarns. The drafting device comprises a drafting frame, the middle of the drafting frame is rotatably connected with a drafting roller, the outer side of the drafting roller is fixedly connected with a limiting roller, a first transmission roller is arranged below the limiting roller, the outer side wall of the first transmission roller is provided with a guide groove, the middle of the guide groove is slidably connected with a guide block, and one end of the guide block is fixedly connected with a swing plate; a limiting rod is fixedly connected to the middle of the upper end of the drafting frame, a drafting block is slidably connected to the outer side of the limiting rod, a reciprocating lead screw is rotatably connected to the middle of the drafting block, and a second transmission roller is fixedly connected to one side of the reciprocating lead screw. The condition of winding generated during yarn fluctuation is reduced, uniform spreading of the yarn is promoted, and through reciprocating movement of the drafting block, the drafted yarn is conveniently promoted to be uniformly spread on the outer side of the winding drum.

Description

Technical Field

[0001] This utility model relates to the field of yarn drafting technology, specifically a drafting device for spinning machines that can evenly spread yarn. Background Technology

[0002] In the spinning process, the process of drawing and thinning the sliver is called drafting. Its purpose is to stretch the sliver to a specified linear density. The essence of drafting is the relative movement of fibers along the sliver axis. Through the relative movement of fibers, the fibers are made parallel and straightened, and under specific conditions, the fiber bundle is separated into single fibers.

[0003] Patent document CN221588793U discloses a yarn synchronous drafting device, including a drafting device base plate. A drafting device support side plate is fixedly connected to the top of the base plate. A drafting roller assembly is disposed on one side of the support side plate, and a transmission assembly is installed on the other side. A yarn winding assembly is installed at one end of the base plate, and an L-shaped support seat is fixedly connected to the other end. A yarn bundling ring is fixedly connected to the top of the L-shaped support seat. The drafting roller assembly includes a yarn drafting roller, a separating baffle, and a heating rod. This device facilitates the simultaneous drafting of multiple yarns, ensures that the yarns are mixed and entangled during drafting, and heats the yarns during drafting to enhance their elasticity. However, this patent still has the following problems in practical use:

[0004] This drafting device prevents the yarn bundles from tangling during drafting by setting up a partition baffle. However, because the yarn is prone to up-and-down fluctuations under the action of elasticity during the drafting process, multiple strands of yarn are prone to tangling during simultaneous drafting, which affects the drafting of the yarn. Furthermore, it is difficult for this drafting device to evenly spread the drafted yarn on the outside of the take-up drum during use, resulting in poor practicality of the drafting device.

[0005] Therefore, a drafting device for spinning machines that can evenly spread yarn is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a drafting device for a spinning machine that can evenly spread yarn, in order to solve the problem mentioned in the background art. The current drafting device prevents the yarn bundles from tangling together during drafting by setting a partition baffle. However, because the yarn is prone to up and down fluctuation under the action of elasticity during the drafting process, multiple strands of yarn are prone to tangling during the simultaneous drafting process, which affects the drafting of the yarn. Furthermore, the drafting device is difficult to evenly spread the drafted yarn on the outside of the take-up drum during use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drafting device for a spinning machine that can evenly spread yarn, comprising a drafting frame;

[0008] A motor is fixedly installed in the middle of one end of the stretching frame;

[0009] Also includes:

[0010] A drawing roller is rotatably connected in the middle of the drawing frame. A support roller is provided on one side of the drawing roller. A limit roller is fixedly connected to the outer side of the drawing roller. A transmission roller is provided below the limit roller. A rotating shaft is fixedly connected in the middle of the transmission roller. A guide groove is opened on the outer side wall of the transmission roller. A guide block is slidably connected in the middle of the guide groove. A swing plate is fixedly connected to one end of the guide block. A swing shaft is fixedly connected to one side of the swing plate.

[0011] Among them, a limiting rod is fixedly connected to the middle of the upper end of the drawing frame, a drawing block is slidably connected to the outer side of the limiting rod, a reciprocating screw is rotatably connected to the middle of the drawing block, and a transmission roller is fixedly connected to one side of the reciprocating screw.

[0012] Preferably, the support roller is rotatably connected to the upper end of the drafting frame near the drafting roller, and one end of the drafting roller passes through the drafting frame and is fixedly connected to the output end of the motor, so as to provide power to the drafting roller.

[0013] Preferably, the two ends of the rotating shaft are rotatably connected to the inner wall of the stretching frame, and the top surface of the first transmission roller is in contact with the bottom surface of the limiting roller, which facilitates the positioning of the rotating shaft.

[0014] Preferably, the guide groove, guide block and swing plate are symmetrically arranged on one side of the transmission roller to facilitate simultaneous control of the yarn separating to both ends.

[0015] Preferably, the swing shaft is symmetrically fixedly connected to the upper and lower ends of the swing plate, and the swing plate is rotatably connected to the inner wall of the stretching frame through the swing shaft, which facilitates the positioning of the swing plate.

[0016] Preferably, the two ends of the reciprocating lead screw are rotatably connected to the inner wall of the upper end of the drawing frame, and a protrusion is provided in the middle of the drawing block. The drawing block is connected to the reciprocating lead screw through the protrusion, which facilitates the reciprocating movement of the drawing block.

[0017] Preferably, the bottom surface of the second transmission roller is in contact with the top surface of the limiting roller, which facilitates the provision of power to the reciprocating screw.

[0018] Compared with the prior art, the beneficial effects of this utility model are: this drafting device for a spinning machine that can evenly spread yarn facilitates the movement of adjacent yarns to both sides by the swinging of the swing plate, reducing tangling caused by yarn fluctuations and promoting even yarn spreading. Furthermore, the reciprocating movement of the drafting block facilitates the even spreading of the drafted yarn on the outside of the take-up drum. The specific details are as follows:

[0019] 1. By setting a swing plate on one side of the drafting roller, the swing plate is driven by the transmission roller to swing when the drafting roller rotates. During the yarn drafting process, the swing plate pushes the adjacent yarns to both sides, thereby reducing the entanglement caused by yarn fluctuation in a limited space, promoting the uniform spread of the yarn, and improving the stability of yarn drafting.

[0020] 2. By setting a second transmission roller above the limiting roller, the second transmission roller can drive the reciprocating screw to rotate, causing the drafting block to move back and forth. This facilitates the even spreading of the drafted yarn on the outside of the take-up drum, thus making the drafting device more practical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a top view of the overall cross-sectional structure of this utility model;

[0023] Figure 3 This is a side view of the overall cross-sectional structure of this utility model;

[0024] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the structure of the transmission roller of this utility model.

[0026] In the diagram: 1. Drawing frame; 2. Motor; 3. Drawing roller; 4. Limiting roller; 5. Drive roller one; 6. Rotating shaft; 7. Guide groove; 8. Guide block; 9. Swing plate; 10. Swing shaft; 11. Limiting rod; 12. Drawing block; 13. Reciprocating screw; 14. Drive roller two; 15. Support roller. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a drafting device for a spinning machine that can evenly spread yarn, including a drafting frame 1; a motor 2 is fixedly installed in the middle of one end of the drafting frame 1; it also includes: a drafting roller 3 rotatably connected to the middle of the drafting frame 1, a support roller 15 provided on one side of the drafting roller 3, a limit roller 4 fixedly connected to the outer side of the drafting roller 3, a transmission roller 5 below the limit roller 4, a rotating shaft 6 fixedly connected in the middle of the transmission roller 5, a guide groove 7 opened on the outer wall of the transmission roller 5, a guide block 8 slidably connected in the middle of the guide groove 7, a swing plate 9 fixedly connected to one end of the guide block 8, and a swing shaft 10 fixedly connected to one side of the swing plate 9; the support roller 15 is rotatably connected to the upper end of the drafting frame 1 near the drafting roller 3, and the... One end of the drafting roller 3 passes through the drafting frame 1 and is fixedly connected to the output end of the motor 2; both ends of the rotating shaft 6 are rotatably connected to the inner wall of the drafting frame 1 respectively; the top surface of the transmission roller 5 is in contact with the bottom surface of the limiting roller 4; the guide groove 7, the guide block 8 and the swing plate 9 are symmetrically arranged on the outside of the transmission roller 5; the swing shaft 10 is symmetrically fixedly connected to the upper and lower ends of the swing plate 9; the swing plate 9 is rotatably connected to the inner wall of the drafting frame 1 through the swing shaft 10; through the contact between the transmission roller 5 and the limiting roller 4, the swing plate 9 is powered to swing, thereby facilitating the swing of the swing plate 9 during the drafting process of the yarn, thus promoting the separation of adjacent yarns, reducing the entanglement when the yarn fluctuates, facilitating the uniform spread of the yarn, and making the drafting of the yarn more stable.

[0029] The drafting frame 1 has a limiting rod 11 fixedly connected to the middle of its upper end. A drafting block 12 is slidably connected to the outer side of the limiting rod 11. A reciprocating screw 13 is rotatably connected to the middle of the drafting block 12. A transmission roller 14 is fixedly connected to one side of the reciprocating screw 13. The two ends of the reciprocating screw 13 are rotatably connected to the inner wall of the upper end of the drafting frame 1. A protrusion is provided in the middle of the drafting block 12, and the drafting block 12 is connected to the reciprocating screw 13 through the protrusion. The bottom surface of the transmission roller 14 is in contact with the top surface of the limiting roller 4. By setting the drafting block 12, the reciprocating movement of the drafting block 12 on the reciprocating screw 13 facilitates the guidance of the yarn position, thereby making it easier to spread the yarn evenly on the take-up drum when the drafted yarn is wound up.

[0030] Working principle: When using this drafting device for spinning machines that can evenly spread yarn, first, the drafting frame 1 is installed in a suitable position on the spinning machine, and the yarn is passed through the top of the support roller 15 and the bottom of the drafting roller 3, and then the yarn is connected to the take-up drum of the spinning machine.

[0031] Next, the power supply of motor 2 is turned on, so that motor 2 drives the drafting roller 3 to rotate. At this time, the limit roller 4 drives the transmission roller 5 to rotate on the inner side of the drafting frame 1 through the rotating shaft 6. The guide groove 7 on the outer side of the transmission roller 5 drives the guide block 8 to move, so that the guide block 8 drives the swing plate 9 to rotate at the swing shaft 10. The swing of the swing plate 9 promotes the separation of yarn and prevents yarn tangling.

[0032] Finally, by passing the yarn through the hole at the lower end of the drafting block 12, the drafting roller 3 rotates, which in turn drives the transmission roller 14 to rotate. The transmission roller 14 then drives the reciprocating screw 13 to rotate. At this time, the drafting block 12 on the outside of the reciprocating screw 13 slides on the limiting rod 11, thereby guiding the position of the yarn during winding.

[0033] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A drafting device for a spinning machine that can evenly spread yarn, comprising a drafting frame (1); A motor (2) is fixedly installed in the middle of one end of the stretching frame (1); Its features are, Also includes: The drawing frame (1) is rotatably connected to the middle of the drawing roller (3), and a support roller (15) is provided on one side of the drawing roller (3). A limit roller (4) is fixedly connected to the outer side of the drawing roller (3). A transmission roller (5) is provided below the limit roller (4). A rotating shaft (6) is fixedly connected in the middle of the transmission roller (5). A guide groove (7) is opened on the outer side wall of the transmission roller (5). A guide block (8) is slidably connected in the middle of the guide groove (7). A swing plate (9) is fixedly connected to one end of the guide block (8). A swing shaft (10) is fixedly connected to one side of the swing plate (9). Among them, a limiting rod (11) is fixedly connected to the middle of the upper end of the drawing frame (1), a drawing block (12) is slidably connected to the outside of the limiting rod (11), a reciprocating screw (13) is rotatably connected to the middle of the drawing block (12), and a transmission roller (14) is fixedly connected to one side of the reciprocating screw (13).

2. The drafting device for a spinning machine capable of uniformly spreading yarn according to claim 1, characterized in that: The support roller (15) is rotatably connected to the upper end of the drawing frame (1) near the drawing roller (3), and one end of the drawing roller (3) passes through the drawing frame (1) and is fixedly connected to the output end of the motor (2).

3. The drafting device for a spinning machine that can uniformly spread yarn according to claim 1, characterized in that: The two ends of the rotating shaft (6) are rotatably connected to the inner wall of the stretching frame (1), and the top surface of the transmission roller (5) is in contact with the bottom surface of the limiting roller (4).

4. The drafting device for a spinning machine that can uniformly spread yarn according to claim 1, characterized in that: The guide groove (7), guide block (8) and swing plate (9) are symmetrically arranged on the outside of the transmission roller (5).

5. The drafting device for a spinning machine that can uniformly spread yarn according to claim 1, characterized in that: The swing shaft (10) is symmetrically fixedly connected to the upper and lower ends of the swing plate (9), and the swing plate (9) is rotatably connected to the inner wall of the stretching frame (1) through the swing shaft (10).

6. The drafting device for a spinning machine capable of uniformly spreading yarn according to claim 1, characterized in that: The two ends of the reciprocating screw (13) are rotatably connected to the inner wall of the upper end of the drawing frame (1). The drawing block (12) has a protrusion in the middle and is connected to the reciprocating screw (13) through the protrusion.

7. The drafting device for a spinning machine capable of uniformly spreading yarn according to claim 1, characterized in that: The bottom surface of the transmission roller 2 (14) is in contact with the top surface of the limiting roller (4).

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