A tension adjustment auxiliary structure for a wire drawing machine tower wheel

Abstract

This utility model discloses an auxiliary structure for adjusting the tension of a wire drawing machine's torsion wheel, relating to the field of tension adjustment technology. The auxiliary structure includes a torsion wheel frame with an electrical distribution box mounted on its rear side. The tension adjustment assembly includes a connecting shaft with an adjusting disc fixedly connected to its front end. A gear is rotatably connected to the surface of the connecting shaft, and a torsion spring is sleeved on its surface. A pressure sensor is fixedly connected to the output end of a hydraulic rod, and a rack is fixedly connected to the end of the pressure sensor furthest from the rack. A third guide wheel is rotatably connected to the front end of a slider. Through torque compensation between the hydraulic rod and the torsion spring, and the adjustment of the distance between the third guide wheel driven by a bidirectional threaded rod, dual control of "real-time torque cancellation + dynamic adjustment of the wrap angle" is achieved. Compared to the traditional spring-pressurized structure, this structure facilitates control of tension fluctuations and effectively solves the problem of tension attenuation caused by component wear in traditional mechanical adjustments.

Description

Technical Field

[0001] This utility model relates to the field of tension adjustment technology, and in particular to an auxiliary structure for adjusting the tension of a wire drawing machine tower wheel. Background Technology

[0002] Wire drawing machines are core equipment in metal wire processing, using pulleys to draw and shape wires. During the drawing process, the tension applied to the wire by the pulleys directly affects the wire's diameter accuracy, surface quality, and production stability. Appropriate tension ensures uniform wire deformation, preventing breakage or wrinkling, while unstable or improperly adjusted tension can lead to dimensional deviations, surface scratches, and even wire breakage and equipment malfunctions. With the metal processing industry's increasing demands for wire precision and production efficiency, accurate and stable adjustment of pulley tension has become a crucial step in ensuring the smooth operation of the wire drawing process.

[0003] Existing tension adjustment methods for wire drawing machine torpedo pulleys have many limitations. Traditional mechanical adjustment structures, such as spring-loaded or lever-type tension adjustment devices, mainly rely on the elastic deformation of mechanical components or the lever principle to control tension. Although these structures are low in cost, they are difficult to maintain a stable tension output over a long period due to wear and aging of mechanical components and environmental factors (such as thermal expansion and contraction of materials caused by temperature changes). They require frequent manual calibration and maintenance, and their adjustment accuracy is limited, making them unsuitable for adapting to the production needs of different wire specifications. Therefore, this utility model proposes a novel solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an auxiliary structure for adjusting the tension of the drawing machine tower wheel. This structure can solve the problem that due to the wear and aging of mechanical parts and environmental factors (such as the thermal expansion and contraction of materials caused by temperature changes), it is difficult to maintain a stable tension output for a long time, requiring frequent manual calibration and maintenance, and the adjustment accuracy is limited, making it inconvenient to adapt to the production needs of different specifications of wire.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary structure for adjusting the tension of a wire drawing machine tower wheel, including a wire drawing machine tower wheel frame, and an electrical distribution box installed on the rear side of the wire drawing machine tower wheel frame; The tension adjustment assembly is located inside the drawing machine tower wheel frame. The tension adjustment assembly includes a connecting shaft, which is rotatably connected inside the drawing machine tower wheel frame. An adjustment disc is fixedly connected to the front end of the connecting shaft. A gear is rotatably connected to the surface of the connecting shaft. A torsion spring is sleeved on the surface of the connecting shaft. The two ends of the torsion spring are fixed to the gear and the connecting shaft, respectively. A second fixed bracket is fixedly connected to the rear side of the wire drawing machine tower wheel frame. A hydraulic rod is fixedly connected inside the second fixed bracket. A pressure sensor is fixedly connected to the output end of the hydraulic rod. A rack is fixedly connected to the end of the pressure sensor away from the rack. The gear meshes with the rack. A fixed frame is fixedly connected to the rear surface of the wire drawing machine tower wheel frame. The rack is slidably connected to the fixed frame. A groove is opened at the front end of the adjustment plate. A slider is slidably connected inside the groove. A third guide wheel is rotatably connected to the front end of the slider.

[0006] Preferably, the tension adjustment assembly further includes two first fixed brackets, both of which are fixedly connected to the front end of the adjustment disc. A second drive motor is fixedly connected to the surface of the lower first fixed bracket, and a bidirectional threaded rod is fixedly connected to the output end of the second drive motor. The bidirectional threaded rod is rotatably connected to two first fixed supports, and the slider is threadedly sleeved on the surface of the bidirectional threaded rod.

[0007] Preferably, the number of sliders and the third guide wheel are both symmetrically arranged on both sides of the bidirectional threaded rod in two sets.

[0008] Preferably, two first drive motors are fixedly connected to the rear side of the wire drawing machine tower wheel frame, and tower wheels are fixedly connected to the output ends of the two first drive motors. The two tower wheels are rotatably connected to the wire drawing machine tower wheel frame, and a wire guide frame is fixedly connected to the front end of the wire drawing machine tower wheel frame. The wire guide frame is located between the two tower wheels.

[0009] Preferably, a first guide wheel is rotatably connected to the lower front end of the wire drawing machine tower wheel frame.

[0010] Preferably, a second guide wheel is rotatably connected to the upper right side of the front end of the wire drawing machine tower wheel frame.

[0011] Preferably, the distribution box is equipped with a PLC adapted to the pressure sensor, supporting equipment for connecting to an external power supply, and a processor.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The tension adjustment auxiliary structure of the wire drawing machine tower wheel achieves dual control of "real-time torque cancellation + dynamic adjustment of wrap angle" through torque compensation of hydraulic rod and torsion spring, and spacing adjustment of the third guide wheel driven by bidirectional threaded rod. Compared with the traditional spring pressure structure, it is easier to control tension fluctuations and effectively solves the problem of tension attenuation caused by component wear in traditional mechanical adjustment. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of an auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to the present invention; Figure 2 This is a schematic diagram of the rear side of the wire drawing machine tower wheel frame of this utility model; Figure 3 This is a schematic diagram of the adjustment disc of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the tower wheel of this utility model.

[0014] Reference numerals in the attached drawings: 1. Wire drawing machine tower wheel frame; 2. Distribution box; 3. First drive motor; 4. Tower wheel; 5. Wire guide frame; 6. First wire guide wheel; 7. Second wire guide wheel; 8. Connecting shaft; 9. Adjusting disc; 10. First fixed bracket; 11. Second drive motor; 12. Bidirectional threaded rod; 13. Slide groove; 14. Slider; 15. Third wire guide wheel; 16. Gear; 17. Torsion spring; 18. Second fixed bracket; 19. Hydraulic rod; 20. Fixed frame; 21. Pressure sensor; 22. Rack. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Please see Figure 1-5This utility model provides a technical solution: an auxiliary structure for adjusting the tension of a wire drawing machine tower wheel, including a wire drawing machine tower wheel frame 1, an electrical distribution box 2 installed on the rear side of the wire drawing machine tower wheel frame 1, and a tension adjustment assembly. The tension adjustment assembly is located inside the wire drawing machine tower wheel frame 1 and includes a connecting shaft 8, which is rotatably connected to the inside of the wire drawing machine tower wheel frame 1. An adjustment disc 9 is fixedly connected to the front end of the connecting shaft 8, a gear 16 is rotatably connected to the surface of the connecting shaft 8, and a torsion spring 17 is sleeved on the surface of the connecting shaft 8. The two ends of the torsion spring 17 are respectively fixed to the gear 16 and the connecting shaft 8. A second fixed bracket 18 is fixedly connected to the rear side of the tower wheel frame 1. A hydraulic rod 19 is fixedly connected inside the second fixed bracket 18. A pressure sensor 21 is fixedly connected to the output end of the hydraulic rod 19. A rack 22 is fixedly connected to the end of the pressure sensor 21 away from the rack 22. A gear 16 meshes with the rack 22. A fixed frame 20 is fixedly connected to the rear surface of the wire drawing tower wheel frame 1. The rack 22 is slidably connected to the fixed frame 20. A sliding groove 13 is opened at the front end of the adjusting plate 9. A slider 14 is slidably connected inside the sliding groove 13. A third guide wheel 15 is rotatably connected to the front end of the slider 14.

[0020] The tension adjustment assembly also includes two first fixed brackets 10, both of which are fixedly connected to the front end of the adjustment disc 9. A second drive motor 11 is fixedly connected to the surface of the lower first fixed bracket 10. A bidirectional threaded rod 12 is fixedly connected to the output end of the second drive motor 11. The bidirectional threaded rod 12 is rotatably connected to the two first fixed brackets 10, and the slider 14 is threadedly sleeved on the surface of the bidirectional threaded rod 12.

[0021] The number of sliders 14 and the third guide wheel 15 are both in two sets, symmetrically arranged on both sides of the bidirectional threaded rod 12.

[0022] Two first drive motors 3 are fixedly connected to the rear side of the wire drawing machine tower wheel frame 1. The output ends of the two first drive motors 3 are fixedly connected to tower wheels 4. The two tower wheels 4 are rotatably connected to the wire drawing machine tower wheel frame 1. The front end of the wire drawing machine tower wheel frame 1 is fixedly connected to a wire guide frame 5, which is located between the two tower wheels 4.

[0023] The first guide wheel 6 is rotatably connected to the lower front end of the wire drawing machine tower wheel frame 1.

[0024] The upper right side of the front end of the wire drawing machine tower wheel frame 1 is rotatably connected to the second wire guide wheel 7.

[0025] The power distribution box 2 is equipped with a PLC that is compatible with the pressure sensor 21, supporting equipment for connecting to an external power supply, and a processor.

[0026] When using this device, the auxiliary structure achieves dynamic control of the tension of the wire drawing machine tower wheel through a closed-loop system of "torque detection-feedback adjustment-mechanical compensation". The core principle is to use the pressure sensor 21 to monitor the change of wire tension in real time, and drive the third wire guide wheel 15 to adjust its position through the hydraulic rod 19 and the bidirectional threaded rod 12. Combined with the torque compensation mechanism of the torsion spring 17 and the gear 16, the tension of the wire is kept stable during the drawing process.

[0027] When the tension of the wire wound on the third guide wheel 15 changes, it will generate a rotational torque on the slider 14 and the adjusting disk 9. This torque is transmitted to the torsion spring 17 through the connecting shaft 8. Since the torsion spring 17 is sleeved on the surface of the connecting shaft 8 and the gear 16 is rotatably connected to the connecting shaft 8, the torque will cause the connecting shaft 8 and the gear 16 to rotate relative to each other.

[0028] The rotation of gear 16 is transmitted to pressure sensor 21 through rack 22. Hydraulic rod 19 pushes rack 22 to mesh with gear 16. When gear 16 rotates relative to gear 16 due to torque, it will push rack 22 to slide in fixed frame 20, thereby squeezing pressure sensor 21.

[0029] Pressure sensor 21 converts the torque signal into an electrical signal and transmits it to the PLC controller in the distribution box 2. The controller determines whether the tension exceeds the limit based on a preset threshold. When the PLC detects that the tension torque exceeds the limit, it controls the hydraulic rod 19 to extend or retract.

[0030] If the tension is too high, the hydraulic rod 19 shortens and pushes the rack 22 to the left, which drives the torsion spring 17 to rotate in the opposite direction through the gear 16, and the elastic deformation of the torsion spring 17 offsets part of the torque.

[0031] If the tension is too low, the hydraulic rod 19 extends, and the torsion spring 17 resets to release the torque and compensate for the tension loss. The fixed frame 20 limits the sliding range of the rack 22 to prevent it from deviating and disengaging from the gear 16 during the movement of the rack 22 driven by the hydraulic rod 19.

[0032] After the second drive motor 11 starts, it drives the bidirectional threaded rod 12 to rotate. Since the slider 14 is threaded on both sides of the bidirectional threaded rod 12 and the slide groove 13 restricts the radial movement of the slider 14, the slider 14 will move towards or away from each other along the slide groove 13 of the adjusting plate 9, thereby changing the distance between the two sets of third guide wheels 15.

[0033] When the tension increases, the PLC controls the second drive motor 11 to rotate forward, and the bidirectional threaded rod 12 drives the third guide wheel 15 to reduce the distance between them, shortening the wire wrap angle and reducing the tension. When the tension decreases, the motor reverses to increase the distance between them, lengthening the wrap angle and increasing the tension.

[0034] The first drive motor 3 drives the pulley 4 to rotate, providing traction force for wire pulling; the wire guide frame 5 is located between the two pulleys 4, guiding the wire to wind along a preset path to avoid deviation.

[0035] The first guide wheel 6 and the second guide wheel 7 are located on the lower front side and the upper right side of the drawing machine tower wheel frame 1, respectively, and together with the third guide wheel 15, they form a three-section guide path. This path design makes the wire tension distribution uniform and reduces local overload.

[0036] The PLC calls the corresponding tension threshold by preset wire specifications in the distribution box 2. Pressure sensor 21 collects torque data, converts it into tension value, and connects it linearly to the PLC in distribution box 2. When the tension exceeds the threshold, the hydraulic rod 19 and the second drive motor 11 move synchronously, with hydraulic compensation responding quickly and guide wheel spacing adjustment being performed with a lag, thus achieving dual control of "rapid compensation + precise fine adjustment".

[0037] Furthermore, through torque compensation of hydraulic rod 19 and torsion spring 17, and spacing adjustment of third guide wheel 15 driven by bidirectional threaded rod 12, dual control of "real-time torque cancellation + dynamic adjustment of wrap angle" is achieved; compared with the traditional spring-pressurized structure, it is easier to control tension fluctuations and effectively solves the problem of tension attenuation caused by component wear in traditional mechanical adjustment.

[0038] Structural Description: Wire drawing machine tower wheel frame 1: Serves as the frame of the entire device, providing the mounting base for tower wheel 4, guide wheel, tension adjustment components, etc.; The internal structure has a rotating fulcrum for connecting shaft 8, a second fixed bracket 18 and a power distribution box 2 are fixed at the rear, and a wire guide frame 5 and a wire guide wheel are arranged at the front to ensure the spatial position accuracy of each component. Distribution box 2: It integrates a PLC, processor and power module, receives the tension signal from pressure sensor 21, and controls the movement of hydraulic rod 19, first drive motor 3 and second drive motor 11; It supports preset wire specifications, displays tension data, fault alarms, and parameter adjustments to achieve intelligent control. Connecting shaft 8: The front end is fixed with adjusting disc 9, and a torsion spring 17 is sleeved on the surface and the connecting gear 16 rotates to transmit the torque generated by the tension of the guide wire to the torque compensation mechanism. Adjustment plate 9: A groove 13 is provided at the front end for mounting the slider 14 and the third guide wheel 15, and the wrap angle of the guide wire path is adjusted by rotation; Gear 16 and torsion spring 17: Gear 16 and connecting shaft 8 are fixed at both ends of torsion spring 17. When the tension changes and the connecting shaft 8 and gear 16 rotate relative to each other, torsion spring 17 absorbs or releases torque through elastic deformation to counteract tension fluctuations. Hydraulic rod 19, pressure sensor 21 and rack 22: Hydraulic rod 19 pushes rack 22 to mesh with gear 16. When gear 16 rotates, it squeezes rack 22. Pressure sensor 21 converts torque into electrical signal and transmits it to PLC. The PLC controls the extension and retraction of the hydraulic rod 19, and adjusts the preload of the torsion spring 17 through the transmission of the rack 22-gear 16 to achieve rapid tension compensation. Fixed bracket 20: limits the sliding range of rack 22 to prevent it from disengaging from gear 16 and ensures the stability of torque transmission; First fixed bracket 10, second drive motor 11 and bidirectional threaded rod 12: The second drive motor 11 drives the bidirectional threaded rod 12 to rotate, causing the slider 14 to slide in the groove 13, changing the spacing of the third guide wheel 15, and adjusting the wire wrap angle to compensate for tension. Slider 14 and third guide wheel 15: The third guide wheel 15 moves with slider 14, and adjusts the tension by changing the wire wrap angle; the surface ceramic coating reduces friction and protects the wire surface; First drive motor 3 and pulley 4: First drive motor 3 drives pulley 4 to rotate, providing traction force for wire pulling. The grooved design of pulley 4 ensures stable wire winding. Wire guide frame 5, first wire guide wheel 6, second wire guide wheel 7: The wire guide frame 5 is located between the two guide wheels 4, and together with the first wire guide wheel 6, the second wire guide wheel 7 and the third wire guide wheel 15, it forms a three-section wire guide path, so that the tension is evenly distributed and the wire is avoided from deflection or overload.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An auxiliary structure for adjusting the tension of a wire drawing machine tower wheel, characterized in that: Includes a wire drawing machine tower wheel frame (1), and a power distribution box (2) is installed on the rear side of the wire drawing machine tower wheel frame (1). Tension adjustment assembly, the tension adjustment assembly is set inside the drawing machine tower wheel frame (1), the tension adjustment assembly includes a connecting shaft (8), the connecting shaft (8) is rotatably connected inside the drawing machine tower wheel frame (1), the front end of the connecting shaft (8) is fixedly connected to an adjustment disc (9), the surface of the connecting shaft (8) is rotatably connected to a gear (16), the surface of the connecting shaft (8) is sleeved with a torsion spring (17), the two ends of the torsion spring (17) are fixed to the gear (16) and the connecting shaft (8) respectively; A second fixed bracket (18) is fixedly connected to the rear side of the wire drawing machine tower wheel frame (1). A hydraulic rod (19) is fixedly connected inside the second fixed bracket (18). A pressure sensor (21) is fixedly connected to the output end of the hydraulic rod (19). A rack (22) is fixedly connected to the end of the pressure sensor (21) away from the rack (22). The gear (16) meshes with the rack (22). A fixed frame (20) is fixedly connected to the rear surface of the drawing machine tower wheel frame (1). The rack (22) is slidably connected to the fixed frame (20). A sliding groove (13) is opened at the front end of the adjusting plate (9). A slider (14) is slidably connected inside the sliding groove (13). A third guide wheel (15) is rotatably connected to the front end of the slider (14).

2. The auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to claim 1, characterized in that: The tension adjustment assembly also includes two first fixed brackets (10), both of which are fixedly connected to the front end of the adjustment plate (9). A second drive motor (11) is fixedly connected to the surface of the lower first fixed bracket (10), and a bidirectional threaded rod (12) is fixedly connected to the output end of the second drive motor (11). The bidirectional threaded rod (12) is rotatably connected to two first fixed brackets (10), and the slider (14) is threaded onto the surface of the bidirectional threaded rod (12).

3. The auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to claim 1, characterized in that: The number of sliders (14) and third guide wheels (15) are both arranged in two sets, symmetrically on both sides of the bidirectional threaded rod (12).

4. The auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to claim 1, characterized in that: Two first drive motors (3) are fixedly connected to the rear side of the wire drawing machine tower wheel frame (1). The output ends of the two first drive motors (3) are fixedly connected to tower wheels (4). The two tower wheels (4) are rotatably connected to the wire drawing machine tower wheel frame (1). The front end of the wire drawing machine tower wheel frame (1) is fixedly connected to a wire guide frame (5). The wire guide frame (5) is located between the two tower wheels (4).

5. The auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to claim 1, characterized in that: The first guide wheel (6) is rotatably connected to the lower front end of the wire drawing machine tower wheel frame (1).

6. The auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to claim 1, characterized in that: The upper right side of the front end of the wire drawing machine tower wheel frame (1) is rotatably connected to the second guide wheel (7).

7. The auxiliary structure for adjusting the tension of a wire drawing machine tower wheel according to claim 1, characterized in that: The power distribution box (2) is equipped with a PLC that is compatible with the pressure sensor (21), a supporting device for connecting to an external power supply, and a processor.

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