Yarn drawing and hooking assembly for thread end knotting

Abstract

The invention relates to the technical field of textile technology, in particular to a yarn pulling and hooking assembly for thread end knotting, which comprises a mechanical linkage assembly and a gear transmission assembly, the mechanical linkage assembly comprises a yarn conveying hook which rotates around a fulcrum and hooks and pulls a yarn to a specified position; the bolt fixes a rotating fulcrum of the yarn transmission hook to ensure stable rotation of the yarn transmission hook; the front end of the yarn hooking arm is provided with a round hole serving as a fulcrum of the yarn transmission hook, and the middle is welded with a nut serving as a rotating fulcrum of the rotating arm to drive the yarn transmission hook to perform yarn hooking action; the rotating arm is matched with the yarn hooking arm and the second transmission rod to realize transmission and conversion of power; the automatic yarn traction device has the beneficial effects that through automatic design, rapid traction of the yarn from being placed to the working position of the knotting machine is achieved, low efficiency of manual operation is avoided, and the overall production efficiency is greatly improved. And the automatic operation of the assembly reduces the dependence on manpower, so that the labor cost is reduced, and the requirements of large-scale production in the modern textile industry are met.

Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to a yarn traction hook assembly for tying knots at thread ends. Background Technology

[0002] In the field of textile technology, yarn splicing is a core process that determines the quality and efficiency of subsequent production. Currently, yarn splicing and knotting are mostly done manually. However, manual knotting has many drawbacks: First, manual knotting is inefficient and incurs high labor costs, which cannot meet the needs of large-scale production in the modern textile industry; second, it is difficult to maintain uniform tension during manual knotting, which can easily lead to loose yarn and seriously affect the stability of yarn quality.

[0003] Therefore, there is an urgent need for a manual automatic knotting machine that can automate the entire process of knotting yarn by simulating manual knotting actions, thereby simultaneously improving knotting efficiency and quality.

[0004] Furthermore, in the actual operation of yarn knotting, the yarn needs to be precisely placed at the knotting position of the knotting machine, and manual operation of this is inefficient. Therefore, a matching yarn traction hook component is also needed to assist in the operation of the automated knotting machine that simulates manual operation, in order to help achieve efficient and accurate positioning of the yarn, thereby further improving the overall working efficiency of the yarn knotting machine. Summary of the Invention

[0005] The purpose of this invention is to provide a yarn pulling and hooking assembly for tying knots at thread ends, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a yarn pulling and hooking assembly for tying knots, comprising a mechanical linkage assembly and a gear transmission assembly, wherein the mechanical linkage assembly includes: The yarn feeder hook rotates around the fulcrum to hook and pull the yarn to the designated position. Bolts are used to fix the pivot point of the yarn transfer hook to ensure its stable rotation. The yarn-hooking arm has a round hole at the front end as the fulcrum of the yarn-transfer hook, and a nut welded in the middle as the rotation fulcrum of the rotating arm, which drives the yarn-transfer hook to perform the yarn-hooking action. The rotating arm, in conjunction with the yarn hook arm and the second transmission rod, enables the transmission and conversion of power.

[0007] Preferably, the mechanical linkage component further includes: a limiting block, a first support rod, and a connecting piece; The limiting block restricts the rotation range of the yarn hook arm; the first support rod provides power support for the rotation of the yarn transmission hook; the connecting piece connects the first transmission gear and the yarn hook arm to realize the conversion from gear transmission to the rotation of the yarn hook arm.

[0008] Preferably, the gear transmission assembly includes: a multi-stage gear transmission chain, a transmission rod, a sleeve, and a shaft; The multi-stage gear transmission chain consists of a first transmission gear, a second transmission gear, a third transmission gear, and a fourth transmission gear meshing sequentially; the transmission rod connects the second and third transmission gears to transmit rotational power; the bushing fits with the shaft to ensure the stability of the gear transmission.

[0009] Preferably, it also includes a displacement and angle constraint structure, which includes: a working plate, a first tension spring, a long bolt, a flat plate, an angle iron platform, and a pin; A pin sleeve is welded to the bottom of the work plate, and the work plate and the pin cooperate to achieve a sliding connection; the first tension spring connects the work plate and the angle iron platform, providing smooth sliding resistance; the long bolt cooperates with the plate to limit the relative angle of the work plate.

[0010] Preferably, it also includes an overall support structure, which includes a support angle iron. The support angle iron is connected to the angle iron platform by bolts and nuts to provide stable support for the overall structure. The angle iron platform serves as the base of the overall structure, connecting and supporting various transmission and constraint components.

[0011] Preferably, it also includes a drive system, which includes: a first drive, a fifth transmission gear, a first bevel gear, a sixth transmission gear, a second bevel gear, and a second drive; The first drive is connected to the second bevel gear, the first bevel gear, the sixth transmission gear, and the fifth transmission gear, driving the worktable and the yarn conveying hook on it to move horizontally; the second drive drives the fourth transmission gear, driving the entire gear transmission assembly to work.

[0012] Preferably, the second drive is activated, which drives the yarn hook arm to rotate through the gear transmission assembly to complete the yarn hooking action; the first drive is activated, which moves the worktable and the yarn transfer hook on it to below the yarn through the bevel gear transmission; the yarn transfer hook picks up the yarn to the working position of the knotting machine, completing the entire yarn traction process.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a yarn traction hook assembly for thread knotting. Through automated design, it achieves rapid traction of the yarn from its placement to the knotting machine's working position, avoiding the inefficiency of manual operation and significantly improving overall production efficiency. The automated operation of the assembly reduces reliance on manual labor, thereby lowering labor costs and meeting the needs of large-scale production in the modern textile industry. Precise mechanical control and stable tension management prevent loosening that can occur during manual knotting, ensuring the consistency of yarn knot quality. The assembly design makes the yarn traction action more precise and the operation more convenient, reducing operational errors and improving the controllability of the production process. The high efficiency and precision of this assembly make it particularly suitable for large-scale textile production, helping to enhance enterprise competitiveness and market responsiveness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the working plate and shaft connection structure of the present invention; Figure 3 This is a schematic diagram of the drive system structure of the present invention.

[0015] In the diagram: 1. Yarn transfer hook; 2. Bolt; 3. First transmission rod; 4. Yarn hook arm; 5. Rotating arm; 6. Second transmission rod; 7. Limiting block; 8. First transmission gear; 9. Bushing; 10. Working plate; 11. Connecting piece; 12. Second transmission gear; 13. Transmission connecting rod; 14. Third transmission gear; 15. Fourth transmission gear; 16. First tension spring; 17. Long bolt; 18. Flat plate; 19. Angle iron platform; 20. Supporting angle iron; 21. First drive; 22. Pin; 23. Tension spring connecting rod; 24. Second tension spring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-3 The present invention provides a technical solution: a yarn traction hook assembly for tying knots, comprising: a yarn transfer hook 1, a bolt 2, a first transmission rod 3, a yarn hook arm 4, a rotating arm 5, a second transmission rod 6, a limiting block 7, a first transmission gear 8, a bushing 9, a working plate 10, a connecting piece 11, a second transmission gear 12, a transmission connecting rod 13, a third transmission gear 14, a fourth transmission gear 15, a first tension spring 16, a long bolt 17, a flat plate 18, an angle iron platform 19, a supporting angle iron 20, a first drive 21, a pin 22, a tension spring connecting rod 23, and a second tension spring 24.

[0018] The yarn-transfer hook 1 can rotate around a fulcrum. Bolt 2 fixes the position of the yarn-transfer hook 1 as its fulcrum. The first support rod 3 transmits power for the rotation of the yarn-transfer hook 1. The front end of the yarn-transfer arm 4 has a round hole, which serves as the fulcrum of the yarn-transfer rod 1. A nut is welded in the middle as the rotation fulcrum of the rotating arm 5. A nut is welded to each end of the rotating arm 5, which respectively cooperates with the yarn-transfer arm 5 and the second transmission rod 6. The limiting block 7 restricts the position of the yarn-transfer arm 4. The first transmission gear 8 meshes with the second transmission gear 12. The bushing 9 cooperates with the shaft 25 and can rotate around the shaft 25, while restricting the position of the second transmission rod 6. The working plate 10 has two pin sleeves 32 welded to the bottom, which cooperate with the pins 22. The connecting piece 11 connects the first transmission gear 8 and the yarn-transfer arm 4. The transmission rod 13 connects the second transmission gear 12 and the third transmission gear 14 to transmit power. The fourth transmission gear 15 meshes with the third transmission gear 14. The first tension spring 16 is connected to the working plate 10 and the angle iron platform 19, allowing the working plate 10 to slide smoothly. The long bolt 17 cooperates with the plate 18 to limit the relative angle of the working plate 10. The supporting angle iron 20 is connected to the angle iron platform 19 through bolts and nuts. The first drive 21, pin 22 and pin sleeve 32 cooperate to slide relative to each other and are connected to the angle iron platform 19. The tension spring connecting rod 23 connects the second tension spring 24 and the working plate 10. The second tension spring 24 is connected to the tension spring connecting rod 23 and is connected to the hook arm 4 to limit the position of the hook arm so that it can reach a fixed position. The fifth transmission gear 26 is connected to the gear connecting rod 31 and meshes with the sixth transmission gear 28. The first bevel gear 27 is nested in the sixth transmission gear 28. The second bevel gear 29 is connected to the first drive 21 and meshes with the first bevel gear 27. The second drive 30 is connected to the fourth transmission gear 15.

[0019] The second drive 30 drives the fourth transmission gear 15 to rotate, causing the third transmission gear 14, which meshes with the fourth transmission gear 15, to rotate. Power is transmitted to the second transmission gear 12 via the transmission link 13, causing it to rotate. This, in turn, drives the first transmission gear 8, which meshes with the second transmission gear 12, to rotate. Simultaneously, the yarn hook arm connected to the first transmission gear rotates 180° to reach the position for pulling the yarn. At the same time, the rotating arm 5, under the action of the first transmission rod 3 and the second transmission rod 6, rotates along with the rotation of the yarn hook arm 4. Power is transmitted to the yarn transfer hook 1 via the first transmission rod 3, causing the yarn transfer hook to rotate to a position relatively parallel to the yarn hook arm 4. The second tension spring 24 ensures the relative position of the yarn hook arm. Once stable, the first drive 21 drives the second bevel gear 29 to rotate, causing the first bevel gear 27, which meshes with the second bevel gear 29, to rotate. This drives the sixth transmission gear 28 to rotate, and the fifth transmission gear 26, which meshes with the sixth transmission gear, also rotates. Through the gear connecting rod 31, the worktable 10 and the yarn transfer hook 1 on it are moved to below the yarn. Then, the second drive 30 continues to drive the fourth transmission gear 15, and the third transmission gear 14, which meshes with the fourth transmission gear, also rotates. Through the transmission connecting rod 13, the gear pair composed of the second transmission gear 12 and the first transmission gear 8 rotates, causing the yarn hook arm 4 and the yarn transfer hook 1 to rotate to the initial position, and the yarn transfer action ends.

[0020] The method for using the yarn guide hook assembly for tying knots includes the following steps: 1. Component Start-up and Power Transmission: The entire component is started by two drive devices (first drive 21 and second drive 30). The second drive 30 starts first, driving the fourth transmission gear 15 to rotate. The rotation of the fourth transmission gear 15 drives the third transmission gear 14, which meshes with it, to rotate. The third transmission gear 14 transmits power to the second transmission gear 12 through the transmission link 13, which in turn drives the first transmission gear 8, which meshes with the second transmission gear 12, to rotate.

[0021] 2. Operation of the yarn hook arm and yarn transfer hook: The rotation of the first transmission gear 8 drives the yarn hook arm 4 to rotate 180° around its fulcrum via the connecting piece 11, reaching the position for pulling the yarn. Simultaneously, the nut welded in the middle of the yarn hook arm 4 serves as the fulcrum for the rotation of the rotating arm 5. Under the action of the first transmission rod 3 and the second transmission rod 6, the rotating arm 5 rotates along with the rotation of the yarn hook arm 4. Through the power transmission of the first transmission rod 3, the yarn transfer hook 1 rotates around its fulcrum (fixed by bolt 2) until it reaches a position relatively parallel to the yarn hook arm 4, preparing for yarn pulling. The function of the second tension spring 24 is to ensure the stability of the yarn hook arm 4 and the yarn transfer hook 1 after reaching the designated position.

[0022] 3. Working Plate Displacement: After the yarn hook arm 4 and the yarn transfer hook 1 reach the position for pulling the yarn, the first drive 21 is activated, driving the second bevel gear 29 to rotate, which in turn drives the first bevel gear 27 meshing with it to rotate. The rotation of the first bevel gear 27 drives the sixth transmission gear 28 to rotate, and the sixth transmission gear 28 then drives the fifth transmission gear 26 meshing with it to rotate. The fifth transmission gear 26 moves the working plate 10 and its components, such as the yarn transfer hook 1, horizontally below the yarn through the gear connecting rod 31. The smooth sliding of the working plate 10 is jointly ensured by components such as the first tension spring 16, the long bolt 17, and the supporting angle iron 20. The first tension spring 16 connects the working plate 10 to the angle iron platform 19, providing elastic cushioning; the long bolt 17 cooperates with the plate 18 to limit the relative angle of the working plate 10; the supporting angle iron 20 is connected to the angle iron platform 19 through bolts and nuts, providing stable support for the working plate 10.

[0023] 4. Yarn Traction and Reset: After the working plate 10 and its yarn transfer hook 1 move under the yarn, the yarn transfer hook 1 is in a suitable position for traction. At this time, a manual or automatic device places the yarn on the yarn transfer hook 1, and the combined action of the yarn hook arm 4 and the yarn transfer hook 1 pulls the yarn to the working position of the knotting machine. After yarn traction is completed, the second drive 30 continues to drive the fourth transmission gear 15 to rotate, driving the yarn hook arm 4 and the yarn transfer hook 1 to rotate in the opposite direction to the initial position through the gear transmission system, preparing for the next traction. At the same time, the first drive 21 may reverse drive as needed to reset the working plate 10 and other components.

[0024] The yarn traction actuator, consisting of yarn feeding hook 1, bolt 2, first support rod 3, yarn hook arm 4, and rotating arm 5, achieves precise rotation of the yarn feeding hook around the fulcrum and power transmission between the components through precise mechanical connections and motion transmission relationships.

[0025] Gear transmission system: A multi-stage gear transmission chain consisting of first transmission gear 8, second transmission gear 12, third transmission gear 14, fourth transmission gear 15, etc., transmits power through components such as transmission rod 13, ensuring stable power transmission and precise control of the angle of components such as the yarn hook arm.

[0026] Displacement and angle constraint structure: The displacement adjustment and angle limiting system, consisting of working plate 10, pin sleeve 32, pin 22, first tension spring 16, long bolt 17, etc., ensures smooth sliding of the working plate and controllable relative angle, providing a stable foundation for yarn traction.

[0027] The yarn traction and hook assembly, through precise mechanical design and gear transmission system, achieves automatic yarn traction and precise positioning. This assembly not only improves work efficiency and reduces labor costs but is also more suitable for the needs of large-scale manufacturing. Its unique technical solution and key point protection provide strong support for the automation development in the textile technology field.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A yarn puller hook assembly for thread knotting, characterized by: Including mechanical linkage assembly and gear transmission assembly, the mechanical linkage assembly comprises: The yarn hook (1) rotates around the fulcrum, and the yarn hook (1) hooks and pulls the yarn to the designated position; The bolt (2) fixes the rotating fulcrum of the yarn hook (1) and ensures its stable rotation; The hooking arm (4) is provided with a round hole at the front end as the fulcrum of the yarn hook (1), and a nut is welded in the middle as the rotating fulcrum of the rotating arm (5), which drives the yarn hook (1) to perform the hooking action; The rotating arm (5) cooperates with the hooking arm (4) and the second transmission rod (6) to realize the transmission and conversion of power.

2. A yarn-pulling hook assembly for thread tying according to claim 1, characterized in that: The mechanical linkage assembly further comprises a limiting block (7), a first supporting rod (3) and a connecting sheet (11); The limiting block (7) limits the rotation range of the hooking arm (4); the first supporting rod (3) provides power support for the rotation of the yarn hook (1); the connecting sheet (11) connects the first transmission gear (8) and the hooking arm (4), and realizes the conversion of gear transmission to hooking arm rotation.

3. A yarn-pulling hook assembly for thread tying according to claim 2, characterized in that: The gear transmission assembly comprises a multi-stage gear transmission chain, a transmission rod (13), a sleeve (9) and a shaft (25); The multi-stage gear transmission chain is composed of first transmission gear (8), second transmission gear (12), third transmission gear (14) and fourth transmission gear (15) in sequence; the transmission rod (13) connects the second transmission gear (12) and the third transmission gear (14) to transmit rotary power; the shaft sleeve (9) cooperates with the shaft (25) to ensure the stability of gear transmission.

4. A yarn picking hook assembly for thread end knotting according to claim 3, characterized in that: It also includes displacement and angle constraint structure, which comprises a work plate (10), a first tension spring (16), a long bolt (17), a flat plate (18), an angle iron table (19) and a pin (22); The bottom of the work plate (10) is welded with a pin sleeve (32), and the work plate (10) cooperates with the pin (22) to realize sliding connection; the first tension spring (16) connects the work plate (10) and the angle iron table (19) to provide smooth sliding resistance; the long bolt (17) cooperates with the flat plate (18) to limit the relative angle of the work plate (10).

5. A yarn picking hook assembly for thread end knotting according to claim 4, characterized in that: It also includes an overall support structure, which comprises a support angle iron (20) connected with the angle iron table (19) through bolt and nut to provide stable support for the overall structure; the angle iron table (19) serves as the base of the overall structure, connecting and supporting various transmission and constraint components.

6. A yarn picking hook assembly for thread end knotting according to claim 5, characterized in that: It also includes a driving system, which comprises a first drive (21), a fifth transmission gear (26), a first bevel gear (27), a sixth transmission gear (28), a second bevel gear (29) and a second drive (30); The first drive (21) is connected with the sixth transmission gear (28) and the fifth transmission gear (26) through the second bevel gear (29), the first bevel gear (27) and the sixth transmission gear (28), and drives the workbench (10) and the yarn hook (1) on it to move horizontally; the second drive (30) drives the fourth transmission gear (15) to drive the entire gear transmission assembly to work.

7. A yarn picking hook assembly for thread end knotting according to claim 6, characterized in that: The second drive (30) is started to rotate the hooking arm (4) through a gear transmission assembly to complete the hooking action; the first drive (21) is started to move the workbench (10) and the yarn passing hook (1) thereon to below the yarn through a bevel gear transmission; the yarn passing hook (1) hooks the yarn to the knotting machine working position to complete the whole yarn pulling process.

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