A tensioning mechanism for a roving mill head

Abstract

The utility model discloses a kind of tensioning mechanisms for roving machine locomotive, belong to spinning production technical field, including rack, the inside of the rack is provided with several mounting blocks, the inside of each mounting block is rotatably connected with bidirectional screw rod, the outer surface of each bidirectional screw rod is screw-connected with two T blocks, the inside of each mounting block is clamped with connecting block, each T block is clamped in the inside of connecting block, the back of each connecting block is fixedly installed with recessed block, the inside of each recessed block is rotatably connected with connecting wheel, the top of each bidirectional screw rod is fixedly installed with rotating disc, the upper surface of each mounting block is fixedly installed with two connecting springs. The tensioning mechanism for roving machine locomotive, by being provided with rack, mounting block, bidirectional screw rod, T block, connecting block, recessed block and connecting wheel, so that worker switches different models of connecting wheel, so that the device is suitable for different thickness of yarn.

Description

Technical Field

[0001] This utility model belongs to the field of spinning production technology, and in particular relates to a tensioning mechanism for the head of a roving frame. Background Technology

[0002] The spinning process is divided into the roving stage and the fine yarn stage. In the roving stage, a roving frame is used to twist and draft the yarn. During twisting and drafting, a tension adjustment mechanism is needed to adjust the tension of the roving to avoid the roving being too tight and affecting the conveying, or the roving being too tight and breaking.

[0003] The existing utility model with authorization announcement number CN222332175U discloses a yarn tension adjustment mechanism for a roving frame, including a support base and an installation cavity provided on the support base. The yarn tension adjustment mechanism of the roving frame further includes: a support column fixed in the installation cavity, a support screw rotatably connected to a vertical groove provided on the support column, and a nut seat threadedly installed on the support screw.

[0004] The above technical solution enables flexible adjustment of the tension on the roving. However, when using this device, the fixed pulley groove, moving pulley groove, and guide wire steel ring have fixed specifications, resulting in poor adaptability to excessively thick or thin yarns. Consequently, excessively thick yarns are prone to severe wear around their edges, while excessively thin yarns are prone to positional shifts, thus reducing the practicality of the device.

[0005] To address this issue, we propose a tensioning mechanism for the head of a roving frame. Utility Model Content

[0006] The purpose of this invention is to solve the problem of poor adaptability of tensioning mechanisms to excessively thick or thin yarns in the prior art, and to propose a tensioning mechanism for the head of a roving frame.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A tensioning mechanism for a roving frame head includes a frame with several mounting blocks inside. Each mounting block has a rotatably connected bidirectional threaded rod inside. Two T-blocks are threaded to the outer surface of each bidirectional threaded rod. A connecting block is engaged inside each mounting block, and each T-block is engaged inside the connecting block. A concave block is fixedly mounted on the back of each connecting block, and a connecting wheel is rotatably connected inside each concave block. A turntable is fixedly mounted at the top of each bidirectional threaded rod. Two connecting springs are fixedly mounted on the upper surface of each mounting block, and a connecting post is fixedly mounted at the top of each connecting spring. Each connecting post is engaged inside the turntable. Two connecting rings are fixedly mounted on the inner top wall of the frame, and an electric push rod is fixedly mounted on the inner wall of each connecting ring. A limit block is fixedly mounted on the telescopic end of each electric push rod.

[0008] Preferably, a connecting frame is fixedly installed on the inner top wall of the frame, a rotating motor is fixedly installed on the inner top wall of the connecting frame, a threaded column is fixedly installed on the output end of the rotating motor, the bottom end of the threaded column is rotatably connected to the inner bottom wall of the connecting frame, a movable frame is threadedly connected to the outer surface of the threaded column, a fixed frame is provided inside the movable frame, two connecting rods are rotatably hinged inside the fixed frame, two placement blocks are fixedly installed on the inner top wall of the frame, a fixed rod is rotatably hinged inside each placement block, and a fixed block is fixedly installed at the end of each fixed rod that is close to the connecting rod.

[0009] Preferably, two slide rods are fixedly installed on the inner wall of the connecting frame, and the outer surface of each slide rod is slidably connected to the inner wall of the movable frame.

[0010] Preferably, two limiting rods are fixedly installed on the inner wall of the movable frame, and the outer surface of each limiting rod is slidably connected to the inner wall of the fixed frame.

[0011] Preferably, two buffer springs are fixedly installed on the upper and bottom surfaces of the fixed frame, and the end of each buffer spring away from the fixed frame is fixedly connected to the inner wall of the movable frame.

[0012] Preferably, two connecting ears are fixedly installed on both sides of the frame, and an expansion bolt is provided inside each connecting ear.

[0013] Preferably, two limiting posts are fixedly installed on the inner wall of each mounting block, and the outer surface of each limiting post is slidably connected to the inner wall of the T-block.

[0014] Preferably, two telescopic columns are fixedly installed on the upper surface of each mounting block, and the telescopic end of each telescopic column is fixedly connected to the bottom end of the connecting column.

[0015] In summary, the technical effects and advantages of this utility model are as follows: By setting up a frame, mounting block, bidirectional threaded rod, T-block, connecting block, concave block, and connecting wheel, the bidirectional threaded rod rotates, causing the T-block to slide away from the interior of the connecting block, thus facilitating the worker to remove the concave block and connecting wheel from the mounting block. This allows the worker to switch between different types of connecting wheels, making the device suitable for yarns of different thicknesses. By setting up a turntable, connecting spring, and connecting post, the connecting spring's elasticity causes the connecting post to engage inside the turntable, thereby locking the bidirectional threaded rod and preventing it from rotating on its own, ensuring the stability of the concave block and connecting wheel installation. By setting up a connecting ring, electric push rod, and limiting block, the electric push rod provides power to move the limiting block, thereby adjusting the distance between the limiting block and the connecting ring, thus facilitating the passage of yarns of different thicknesses. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the frame of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the rear sectional view of the mounting block of this utility model; Figure 3 This is a three-dimensional structural diagram of the connecting block of this utility model; Figure 4 This is a three-dimensional structural diagram of the connecting ring of this utility model.

[0017] Figure 5 This is a three-dimensional structural schematic diagram of the cross-sectional view of the connecting frame of this utility model.

[0018] In the diagram: 1. Frame; 2. Mounting block; 3. Bidirectional threaded rod; 4. T-block; 5. Connecting block; 6. Concave block; 7. Connecting wheel; 8. Turntable; 9. Connecting spring; 10. Connecting column; 11. Connecting ring; 12. Electric push rod; 13. Limiting block; 14. Connecting frame; 15. Rotating motor; 16. Threaded column; 17. Moving frame; 18. Fixed frame; 19. Connecting rod; 20. Fixed block; 21. Fixed rod; 22. Placement block; 23. Slide rod; 24. Limiting rod; 25. Buffer spring; 26. Expansion bolt; 27. Connecting lug; 28. Limiting column; 29. ​​Telescopic column. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5A tensioning mechanism for the head of a roving frame includes a frame 1. The frame 1 has several mounting blocks 2 inside. Two connecting ears 27 are fixedly installed on both sides of the frame 1. Each connecting ear 27 has an expansion bolt 26 inside. The expansion bolt 26 and the connecting ear 27 are used to fix the frame 1 to the head of the roving frame, thereby preventing the frame 1 from moving on its own and ensuring the stability of the frame 1.

[0021] Each mounting block 2 has a rotatably connected bidirectional threaded rod 3 inside, and two T-blocks 4 are threadedly connected to the outer surface of each bidirectional threaded rod 3. Each mounting block 2 has a connecting block 5 inside, and each T-block 4 is snapped into the inside of the connecting block 5. Two limiting posts 28 are fixedly installed on the inner wall of each mounting block 2. The outer surface of each limiting post 28 is slidably connected to the inner wall of the T-block 4. The installation of the limiting posts 28 restricts the movement trajectory of the T-block 4, thereby preventing the T-block 4 from deviating from the movement trajectory during movement, and thus ensuring the stability of the movement of the T-block 4.

[0022] Each connecting block 5 has a concave block 6 fixedly installed on its back. Each concave block 6 has a connecting wheel 7 rotatably connected inside. A connecting frame 14 is fixedly installed on the inner top wall of the frame 1. A rotating motor 15 is fixedly installed on the inner top wall of the connecting frame 14. A threaded post 16 is fixedly installed at the output end of the rotating motor 15. The bottom end of the threaded post 16 is rotatably connected to the inner bottom wall of the connecting frame 14. A movable frame 17 is threadedly connected to the outer surface of the threaded post 16. A fixed frame 18 is provided inside the movable frame 17. Two connecting rods 19 are rotatably hinged inside the fixed frame 18. Two placement blocks 22 are fixedly installed on the inner top wall of the frame 1. Each placement block 22 has a fixed rod 21 rotatably hinged inside. Fixing blocks 20 are fixedly installed at the ends of the connecting rod 19 and the connecting rod 21. The mounting blocks 2 on the left and right sides are fixedly connected to the back of the two fixing blocks 20 respectively. The mounting block 2 in the middle is fixedly connected to the upper surface of the connecting frame 14. The power provided by the rotating motor 15, together with the threaded column 16, drives the moving frame 17 and the fixing frame 18 to move, thereby cooperating with the connecting rod 19 and the fixing rod 21 to drive the fixing blocks 20 to move, thereby driving the connecting wheels 7 connecting the left and right sides to move up and down, thereby adjusting the height difference between the connecting wheels 7 on the left and right sides and the middle connecting wheel 7, so that the yarn passes through the connecting wheels 7 in sequence, making the yarn "W-shaped", thus playing the role of adjusting the yarn tension.

[0023] Each bidirectional threaded rod 3 has a turntable 8 fixedly installed at its top end. Two slide rods 23 are fixedly installed on the inner wall of the connecting frame 14. The outer surface of each slide rod 23 is slidably connected to the inner wall of the moving frame 17. The installation of the slide rods 23 plays a role in limiting the movement trajectory of the moving frame 17, thereby ensuring the stability of the movement of the moving frame 17.

[0024] Two connecting springs 9 are fixedly installed on the upper surface of each mounting block 2. A connecting post 10 is fixedly installed at the top of each connecting spring 9. Each connecting post 10 is snapped into the inside of the turntable 8. Several through holes for inserting the connecting post 10 are opened on the outer surface of the turntable 8. Two telescopic posts 29 are fixedly installed on the upper surface of each mounting block 2. The telescopic end of each telescopic post 29 is fixedly connected to the bottom end of the connecting post 10. The installation of the telescopic post 29 restricts the movement trajectory of the connecting post 10, thereby preventing the connecting post 10 from deviating from the movement trajectory when moving, and thus ensuring the stability of the movement of the connecting post 10.

[0025] Two connecting rings 11 are fixedly installed on the inner top wall of the frame 1, and two limiting rods 24 are fixedly installed on the inner wall of the movable frame 17. The outer surface of each limiting rod 24 is slidably connected to the inner wall of the fixed frame 18. The installation of the limiting rods 24 plays the role of limiting the movement trajectory of the fixed frame 18, thereby ensuring the stability of the movement of the fixed frame 18.

[0026] An electric push rod 12 is fixedly installed on the inner wall of each connecting ring 11. A limit block 13 is fixedly installed on the telescopic end of each electric push rod 12. Two buffer springs 25 are fixedly installed on the upper and lower surfaces of the fixed frame 18. The end of each buffer spring 25 away from the fixed frame 18 is fixedly connected to the inner wall of the movable frame 17. The installation of the buffer springs 25 provides a certain elasticity adjustment range for the fixed frame 18, so as to buffer the small-amplitude change in tension on the roving and affect the stability of the normal conveying of the roving.

[0027] The working principle of this utility model is as follows: In use, the worker uses the connecting ear 27 and expansion bolt 26 to install the frame 1 at the head of the roving frame. Then, the worker selects the appropriate size connecting wheel 7 according to the yarn thickness. Next, the worker inserts the connecting block 5 with the appropriately sized connecting wheel 7 into the mounting block 2. Then, the worker pulls the connecting post 10 downwards, causing it to slide away from the turntable 8. The worker then rotates the turntable 8, causing the double-threaded rod 3 to rotate. This causes the double-threaded rod 3 to move the T-block 4 closer to the connecting block 5, allowing the T-block 4 to insert into the connecting block 5, thus locking the connecting block 5. Then, the worker releases the connecting spring 9, causing the connecting post 10 to engage inside the turntable 8 under the elastic force of the connecting spring 9. The turntable 8 is locked, and then the worker opens the electric push rod 12 via an external remote control device. The electric push rod 12 provides power to move the limit block 13 up and down, thereby adjusting the distance between the limit block 13 and the connecting ring 11 according to the thickness of the yarn. The worker then passes the yarn through the connecting ring 11 and the connecting wheel 7 in sequence, so that the yarn forms a "W" shape inside the frame 1. After that, the worker turns on the rotating motor 15, and the power provided by the rotating motor 15, together with the threaded column 16, moves the moving frame 17 and the fixed frame 18. This, in turn, moves the fixed block 20 in conjunction with the connecting rod 19 and the fixed rod 21, thereby moving the connecting wheels 7 on the left and right sides up and down, thus adjusting the height difference between the connecting wheels 7 on the left and right sides and the middle connecting wheel 7, thereby adjusting the yarn tension.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to indicate or imply that the device or component 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.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tensioning mechanism for a roving frame head, comprising a frame (1), characterized in that: The frame (1) is provided with several mounting blocks (2) inside. Each mounting block (2) is rotatably connected to a bidirectional threaded rod (3). The outer surface of each bidirectional threaded rod (3) is threaded with two T-shaped blocks (4). Each mounting block (2) is fitted with a connecting block (5). Each T-shaped block (4) is fitted into the connecting block (5). A concave block (6) is fixedly installed on the back of each connecting block (5). A connecting wheel (7) is rotatably connected inside each concave block (6). A turntable (8) is fixedly installed at the top of each threaded rod (3). Two connecting springs (9) are fixedly installed on the upper surface of each mounting block (2). A connecting post (10) is fixedly installed at the top of each connecting spring (9). Each connecting post (10) is snapped into the inside of the turntable (8). Two connecting rings (11) are fixedly installed on the inner top wall of the frame (1). An electric push rod (12) is fixedly installed on the inner wall of each connecting ring (11). A limit block (13) is fixedly installed at the telescopic end of each electric push rod (12).

2. The tensioning mechanism for the head of a roving frame according to claim 1, characterized in that: A connecting frame (14) is fixedly installed on the inner top wall of the frame (1). A rotating motor (15) is fixedly installed on the inner top wall of the connecting frame (14). A threaded column (16) is fixedly installed at the output end of the rotating motor (15). The bottom end of the threaded column (16) is rotatably connected to the inner bottom wall of the connecting frame (14). A movable frame (17) is threadedly connected to the outer surface of the threaded column (16). A fixed frame (18) is provided inside the movable frame (17). Two connecting rods (19) are rotatably hinged inside the fixed frame (18). Two placement blocks (22) are fixedly installed on the inner top wall of the frame (1). A fixed rod (21) is rotatably hinged inside each placement block (22). A fixed block (20) is fixedly installed at the end of each fixed rod (21) that is close to the connecting rod (19).

3. A tensioning mechanism for a roving frame head according to claim 2, characterized in that: Two slide rods (23) are fixedly installed on the inner wall of the connecting frame (14), and the outer surface of each slide rod (23) is slidably connected to the inner wall of the movable frame (17).

4. A tensioning mechanism for a roving frame head according to claim 2, characterized in that: Two limiting rods (24) are fixedly installed on the inner wall of the movable frame (17), and the outer surface of each limiting rod (24) is slidably connected to the inner wall of the fixed frame (18).

5. A tensioning mechanism for a roving frame head according to claim 2, characterized in that: Two buffer springs (25) are fixedly installed on the upper and lower surfaces of the fixed frame (18), and the end of each buffer spring (25) away from the fixed frame (18) is fixedly connected to the inner wall of the movable frame (17).

6. A tensioning mechanism for a roving frame head according to claim 1, characterized in that: Two connecting ears (27) are fixedly installed on both sides of the frame (1), and an expansion bolt (26) is provided inside each connecting ear (27).

7. A tensioning mechanism for a roving frame head according to claim 1, characterized in that: Two limiting posts (28) are fixedly installed on the inner wall of each mounting block (2), and the outer surface of each limiting post (28) is slidably connected to the inner wall of the T-block (4).

8. A tensioning mechanism for a roving frame head according to claim 1, characterized in that: Two telescopic columns (29) are fixedly installed on the upper surface of each mounting block (2), and the telescopic end of each telescopic column (29) is fixedly connected to the bottom end of the connecting column (10).

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