Drawing device for steel strand

Abstract

The utility model discloses a drawing device for a steel strand. The drawing device for the steel strand comprises a mounting frame, and a plurality of drawing wheels, a diameter measuring instrument and a tension adjusting mechanism are arranged on the mounting frame; the adjusting mechanism comprises a track, a supporting plate and an electric push rod are installed on the track, and the electric push rod is connected with the supporting plate. According to the drawing device for the steel strand, the mounting frame, the drawing wheel, the diameter measuring instrument and the tension adjusting mechanism are arranged, the diameter measuring instrument is used for monitoring the diameter of a steel wire before and after stretching in real time, the linear speed of the drawing wheel can be adjusted conveniently, the steel wire is tensioned through the tensioning wheel, and the tension of the steel wire is improved. The pressure change between the tensioning wheel and the steel wire is accurately monitored by using the pressure sensor, and the pressure value between the tensioning wheel and the steel wire is kept in a small-range stable interval through the electric push rod, so that the tensile force applied to the steel wire fluctuates in a small range, the thickness of the drawn thin wire is more uniform, and the quality of the produced steel strand is better.

Description

Technical Field

[0001] The present application relates to the field of steel strand production equipment, and in particular to a steel strand drawing device. Background Art

[0002] Prestressed steel strand is a kind of rigid steel wire rope, which has the advantages of high strength, corrosion resistance and long service life, and is widely used in bridges, high-rise buildings, large machinery and transportation. In the process of prestressed steel strand, the coarse steel bar needs to be drawn into fine wire by drawing equipment, then surface treated and finally twisted.

[0003] Existing steel strand drawing equipment is divided into two types: horizontal and vertical. The thick steel wire is drawn step by step through multiple drawing wheels with different surface linear speeds. The tension generated by the linear speed difference between the drawing wheels is used to stretch the steel wire between the drawing wheels, so that the diameter of the steel wire is gradually reduced and finally drawn into a thin wire of the required diameter. However, during the use of the existing drawing equipment, the tension between the drawing wheels is only dynamically adjusted by the tension wheel. The tension wheel uses elastic parts such as springs to automatically tighten, and its adjustment accuracy is not high, resulting in a large variation in tension, which in turn makes the diameter of the drawn thin wire uneven, making the drawn thin wire sometimes thick and sometimes thin, ultimately affecting the quality of the steel strand. Utility Model Content

[0004] In order to improve the tension adjustment accuracy and improve the quality of steel strands, the present application provides a pulling device for steel strands.

[0005] The present application provides a steel strand drawing device that adopts the following technical solution:

[0006] A drawing device for a steel strand comprises a vertical mounting frame, on which a plurality of drawing wheels are mounted, the drawing wheels are driven by a servo motor mounted on the back of the mounting frame, a plurality of diameter gauges are mounted on the mounting frame, the diameter gauges are arranged on both sides of the drawing wheel, the steel wire passes through the diameter gauges, the diameter gauges are used to measure the diameter of the steel wire before and after drawing, and then calculate the rate of change of the steel wire before and after drawing by the drawing wheel, a plurality of tension adjustment mechanisms are mounted on the mounting frame, the tension adjustment mechanism comprises a track connected to the mounting frame, a support plate slidably mounted on the track, an electric push rod is fixedly mounted on the track, the output end of the electric push rod is fixedly connected to the support plate, the support plate is pushed to slide on the track by the electric push rod, a tensioning wheel is mounted on one side of the support plate, the tensioning wheel tightens the steel wire, a pressure sensor is mounted between the tensioning wheel and the support plate, the pressure sensor is used to measure the pressure between the tensioning wheel and the support plate, and then conveniently calculate the change in the pressure value between the steel wire and the tensioning wheel, and the tension of the pulling wheel on the steel wire is changed by changing the size of the pressure value.

[0007] By adopting the above technical solution, it is convenient to adjust the linear speed of the pulling wheel, and use the pressure sensor to accurately monitor the pressure change between the tensioning wheel and the steel wire, so that the tension on the steel wire fluctuates within a smaller range. The thickness of the filaments after drawing is more uniform, and the quality of the produced steel strands is better.

[0008] Optionally, a dovetail groove is provided on one side of the track, the dovetail groove has a small mouth and a large bottom, and the bottom of the support plate extends into the dovetail groove and is slidably connected to the dovetail groove.

[0009] By adopting the above technical solution, the support plate can be conveniently connected to the track by sliding. The structure is simple, the cost is low, and it is easy to promote and use.

[0010] Optionally, a fixed tube is installed on one side of the support plate, and a bracket is installed on one side of the fixed tube. The bracket is fixedly connected to the pressure sensor, and two connecting rods are slidably installed on the bracket. The connecting rods pass through the connecting ears on both sides of the bracket and are slidably connected to the connecting ears. One end of the connecting rod is fixedly connected to the wheel frame of the tensioning wheel, and the wheel frame is in contact with the pressure sensor.

[0011] By adopting the above technical solution, the tensioning wheel can be conveniently kept away from the pressure sensor, making it convenient to replace the pressure sensor.

[0012] Optionally, a plug rod is installed on one side of the bracket, one end of the plug rod is inserted into the fixed tube, a thick spring is installed on the plug rod, the stiffness coefficient of the thick spring is large, and both ends of the thick spring are fixedly connected to the fixed tube and the bracket respectively.

[0013] By adopting the above technical solution, the pressure sensor can be protected and prevented from being damaged due to a sudden increase in force.

[0014] Optionally, a limit plate and a thin spring are installed at one end of the connecting rod. The thin spring is sleeved and installed on the connecting rod and is arranged between the limit plate and the connecting ear. The thin spring is always in a compressed state.

[0015] By adopting the above technical solution, the pressure sensor can be protected.

[0016] Optionally, a transverse adjustment wheel group and a longitudinal adjustment wheel group are provided on both sides of the diameter gauge, and the transverse adjustment wheel group and the longitudinal adjustment wheel group are both composed of two rollers. The transverse adjustment wheel group and the longitudinal adjustment wheel group are connected to the mounting frame, and a channel for accommodating the passage of the steel wire is formed therebetween.

[0017] By adopting the above technical solution, the position of the steel wire passing through the caliper can be kept stable, so that the caliper can measure the diameter of the steel wire more accurately.

[0018] Optionally, the roller surfaces of the transverse adjustment wheel set and the longitudinal adjustment wheel set are provided with a rubber layer.

[0019] The adoption of the above technical solution is helpful to reduce noise and improve environmental comfort.

[0020] Optionally, a plurality of lubrication devices are installed on the mounting frame, and the lubrication devices are arranged on one side of the pulling wheel to pre-lubricate the steel wire wrapped around the pulling wheel.

[0021] By adopting the above technical solution, the steel wire wrapped around the pulling wheel can be pre-lubricated to prevent the steel wire from being stacked and entangled on the pulling wheel.

[0022] Optionally, an operating table is installed on one side of the mounting frame, and the operating table is connected to the servo motor and the diameter measuring instrument of the pulling wheel.

[0023] By adopting the above technical solution, the diameter of the steel wire in the current processing section before and after stretching can be easily checked, and the processing status of the steel wire can be monitored so that the rotation speed of the pulling wheel can be adjusted in time.

[0024] Optionally, a T-shaped plate is installed on the bracket, a clamping strip is installed at the bottom of the T-shaped plate, an arc-shaped contact surface adapted to the fixed tube is provided at the bottom of the T-shaped plate, a clamping slot adapted to the clamping strip is opened on the fixed tube, and the clamping strip is embedded in the clamping slot and can slide along the clamping slot.

[0025] By adopting the above technical solution, by providing the card slot, T-shaped plate and card strip, the bracket can be limited to prevent it from rotating.

[0026] The present application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up a mounting frame, a pulling wheel, a diameter gauge and a tension adjustment mechanism, the diameter of the steel wire before and after stretching is monitored in real time by the diameter gauge, which is convenient for adjusting the linear speed of the pulling wheel. The steel wire is tightened by the tensioning wheel, and the pressure change between the tensioning wheel and the steel wire is accurately monitored by the pressure sensor. The pressure value between the tensioning wheel and the steel wire is kept in a small stable range through the electric push rod, so that the tension on the steel wire fluctuates in a small range, the thickness of the thin wire after drawing is more uniform, and the quality of the produced steel strand is better;

[0028] 2. By setting a fixed pipe, a bracket and a connecting rod, the tensioner can be kept away from the pressure sensor, making it easier to replace the pressure sensor;

[0029] 3. By setting the plug rod and thick spring, the pressure sensor can be protected to prevent damage caused by sudden force increase;

[0030] 4. By setting the limit plate and the thin spring, the tensioner can be installed in any direction, and the thin spring can keep the wheel frame and the pressure sensor in contact, preventing dust or impurities from entering between the two, thereby protecting the pressure sensor;

[0031] 5. By setting the transverse adjustment wheel group and the longitudinal adjustment wheel group, the position of the steel wire passing through the diameter gauge can be kept stable, so that the diameter of the steel wire measured by the diameter gauge is more accurate;

[0032] 6. The roller surfaces of the lateral adjustment wheel group and the longitudinal adjustment wheel group are provided with a rubber layer, which is helpful to reduce noise and improve environmental comfort;

[0033] 7. By setting up a lubrication device, the steel wire wrapped around the pulling wheel is pre-lubricated to prevent the steel wire from stacking and winding on the pulling wheel;

[0034] 8. By setting up an operating table, it is convenient to check the diameter of the steel wire before and after stretching in the current processing section, so as to monitor the processing status of the steel wire so as to adjust the speed of the pulling wheel in time.

[0035] 9. By providing a card slot, a T-shaped plate and a card strip, the bracket can be limited to prevent it from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The utility model is a structural schematic diagram of a steel strand drawing device provided by the utility model.

[0037] Figure 2 yes Figure 1 Enlarged view of part A.

[0038] Figure 3 It is a schematic diagram of the connection between the fixed pipe and the bracket.

[0039] Figure 4 It is a structural schematic diagram of the tension adjustment mechanism.

[0040] Figure 5 It is a structural diagram of a T-type plate.

[0041] Explanation of the reference numerals in the accompanying drawings: 1. Mounting frame; 2. Pulling wheel; 3. Diameter gauge; 4. Tension adjustment mechanism; 5. Lateral adjustment wheel group; 6. Longitudinal adjustment wheel group; 7. Fixed tube; 8. Wheel frame; 9. Tensioner; 10. Pressure sensor; 11. Insert rod; 12. Thick spring; 13. Bracket; 14. Connecting rod; 15. Connecting ear; 16. Thin spring; 17. Limiting plate; 18. Track; 19. Support plate; 20. Electric push rod; 21. Dovetail groove; 22. Clamping slot; 23. T-plate; 24. Clamping strip; 25. Lubrication device; 26. Operating table; 27. Arc contact surface. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-5 This application is described in further detail.

[0043] The embodiment of the present application discloses a drawing device for a steel strand.

[0044] Embodiment 1:

[0045] Reference Figure 1-4The drawing device for steel strands comprises: a vertical mounting frame 1, a plurality of drawing wheels 2 are mounted on the mounting frame 1, the drawing wheels 2 are driven by a servo motor mounted on the back of the mounting frame 1, a plurality of diameter gauges 3 are mounted on the mounting frame 1, the diameter gauges 3 are arranged on both sides of the drawing wheel 2, the steel wire passes through the diameter gauges 3, the diameter gauges 3 are used to measure the diameter of the steel wire before and after drawing, and then measure the rate of change of the steel wire before and after drawing by the drawing wheel 2, a plurality of tension adjustment mechanisms 4 are mounted on the mounting frame 1, the tension adjustment mechanism 4 comprises a track 18 connected to the mounting frame 1, a support plate 19 slidably mounted on the track 18, an electric push rod 20 is fixedly mounted on the track 18, the electric push rod 20 is automatically controlled by a controller or manually controlled, and the output end of the electric push rod 20 is connected to the support plate 19 The support plate 19 is fixedly connected and pushed to slide on the track 18 by the electric push rod 20. A tensioning wheel 9 is installed on one side of the support plate 19. The tensioning wheel 9 tightens the steel wire. A pressure sensor 10 is installed between the tensioning wheel 9 and the support plate 19. The pressure sensor 10 is used to measure the pressure between the tensioning wheel 9 and the support plate 19, so as to facilitate the measurement of the change in the pressure value of the steel wire and the tensioning wheel 9. By changing the size of the pressure value, the pulling force of the pulling wheel 2 on the steel wire is changed. When in use, the steel wire passes over the caliper 3 and the tensioning wheel 9 and wraps around the pulling wheel 2 for several circles, and then passes over the next caliper 3 and the tensioning wheel 9 and wraps around the next pulling wheel 2 for several circles, and then proceeds in sequence, and the caliper 3 is used to measure the pressure of the pulling wheel 2 passing the front The diameter of the steel wire after drawing is calculated, and the diameter change rate of the steel wire is calculated. If the diameter change rate of the steel wire is inconsistent with the designed change rate, the speed of the pulling wheel 2 can be changed, thereby changing the linear speed difference of the adjacent pulling wheels 2 to increase or decrease the diameter change rate of the steel wire, and so on, so that the diameter of the steel wire before and after passing through each pulling wheel 2 changes evenly, so that the steel wire can be evenly stretched, and the diameter of the drawn filament is more uniform and the quality is higher. In addition, the mass of the pulling wheel 2 is large, and many turns of steel wire are wound on it, and its speed is difficult to increase or decrease in a short time. At this time, the electric push rod 20 is started to extend or shorten its output shaft. Taking the shortening of the output shaft as an example, at this time, the shortening of the output shaft of the electric push rod 20 drives the support plate 19 on the track 18 to move closer to the steel wire. The tension wheel 9 is moved to one side, thereby lifting the steel wire, further tightening the steel wire and increasing the radial pressure on the steel wire. The radial pressure generates a component force along the axial direction of the steel wire, thereby increasing the tension value on the steel wire. Conversely, the tension value decreases. At the same time, the pressure value between the tension wheel 9 and the support plate 19 is detected by the pressure sensor 10. After calculation, the radial pressure value on the steel wire is obtained. The greater the pressure value, the greater the tension value on the steel wire. By monitoring the value change of the pressure sensor 10 and using the start and stop of the electric push rod 20 to control the movement of the tension wheel 9, the pressure sensor 10 is kept within a small range of change, thereby making the tension on the steel wire change less, and the diameter of the produced steel wire changes more evenly.Therefore, the quality of the steel strand produced from the steel wire is better.

[0046] By setting up the mounting frame 1, the pulling wheel 2, the diameter gauge 3 and the tension adjustment mechanism 4, the diameter gauge 3 is used to monitor the diameter of the steel wire before and after stretching in real time, so as to facilitate the adjustment of the linear speed of the pulling wheel 2, and the steel wire is tightened by the tensioning wheel 9. The pressure sensor 10 is used to accurately monitor the pressure change between the tensioning wheel 9 and the steel wire. The electric push rod 20 is used to keep the pressure value between the tensioning wheel 9 and the steel wire within a smaller stable range, so that the tension on the steel wire fluctuates within a smaller range, the thickness of the filaments after drawing is more uniform, and the quality of the produced steel strands is better.

[0047] Embodiment 2:

[0048] Reference Figure 4 A dovetail groove 21 is provided on one side of the track 18. The dovetail groove 21 has a small mouth and a large bottom. The bottom of the support plate 19 extends into the dovetail groove 21 and is slidably connected with the dovetail groove 21. When in use, the support plate 19 is slidably connected to the track 18 through the dovetail groove 21. The design of the dovetail groove 21 plays an anti-slip effect, which can prevent the support plate 19 from escaping from the dovetail groove 21. The support plate 19 slides along the length direction of the dovetail groove 21.

[0049] By providing the dovetail groove 21 , the support plate 19 can be conveniently slidably connected to the track 18 . The structure is simple and the cost is low.

[0050] Embodiment 3:

[0051] Reference Figure 3-4 A fixed tube 7 is installed on one side of the support plate 19, and a bracket 13 is installed on one side of the fixed tube 7. The bracket 13 is fixedly connected to the pressure sensor 10. Two connecting rods 14 are slidably installed on the bracket 13. The connecting rods 14 pass through the connecting ears 15 on both sides of the bracket 13 and are slidably connected with the connecting ears 15. One end of the connecting rod 14 is fixedly connected to the wheel frame 8 of the tensioning wheel 9, and the wheel frame 8 is in contact with the pressure sensor 10. When in use, the wheel frame 8 can be dragged to one side of the bracket 13. During this process, the connecting rod 14 moves with the wheel frame 8, and the wheel frame 8 is away from the pressure sensor 10, which is convenient for replacing the pressure sensor 10. The pressure sensor 10 detects the pressure from the wheel frame 8, and then the pressure value of the tensioning wheel 9 can be calculated.

[0052] By providing the fixing tube 7 , the bracket 13 and the connecting rod 14 , the tensioning wheel 9 can be conveniently kept away from the pressure sensor 10 , so that the pressure sensor 10 can be conveniently replaced.

[0053] Embodiment 4:

[0054] Reference Figure 3A plug rod 11 is installed on one side of the bracket 13, one end of the plug rod 11 is inserted into the fixed tube 7, and a thick spring 12 is installed on the plug rod 11. The stiffness coefficient of the thick spring 12 is large, and the two ends of the thick spring 12 are fixedly connected to the fixed tube 7 and the bracket 13 respectively. When in use, when the support plate 19 moves along the track 18, it drives the fixed tube 7 to move. The movement of the fixed tube 7 drives the bracket 13 to move through the thick spring 12, so that the pressure between the tensioner 9 and the steel wire increases, and the thick spring 12 is compressed (the compression length is short), changing direction to reduce the moving distance of the tensioner 9, thereby preventing the support plate 19 from moving too fast, which causes the pressure sensor 10 to receive a sudden increase in pressure and be damaged.

[0055] By providing the insertion rod 11 and the thick spring, the pressure sensor 10 can be protected from being damaged due to a sudden increase in force.

[0056] Embodiment 5:

[0057] Reference Figure 3 A limit plate 17 and a thin spring 16 are installed at one end of the connecting rod 14. The thin spring 16 is sleeved and installed on the connecting rod 14 and is arranged between the limit plate 17 and the connecting ear 15. The thin spring 16 is always in a compressed state. When in use, the compressed thin spring 16 pushes the limit plate 17 to move toward the side close to the fixed tube 7, thereby driving the connecting rod 14 to move. The movement of the connecting rod 14 drives the wheel frame 8 to move toward the side close to the pressure sensor 10, thereby ensuring that the wheel frame 8 always maintains contact with the pressure sensor 10.

[0058] By setting the limit plate 17 and the thin spring 16, no matter which direction the tensioning wheel 9 is installed, the thin spring 16 can keep the wheel frame 8 and the pressure sensor 10 in contact, preventing dust or impurities from entering between the two (after the particle impurities fall on the contact surface between the wheel frame 8 and the pressure sensor 10, the pressure sensor 10 may be damaged after the two are pressed tightly), thereby protecting the pressure sensor 10.

[0059] Embodiment 6:

[0060] Reference Figure 2 , a lateral adjustment wheel group 5 and a longitudinal adjustment wheel group 6 are provided on both sides of the diameter gauge 3, and the lateral adjustment wheel group 5 and the longitudinal adjustment wheel group 6 are both composed of two rollers. The lateral adjustment wheel group 5 and the longitudinal adjustment wheel group 6 are connected to the mounting frame 1, and a channel for accommodating the passage of the steel wire is formed therebetween. The steel wire passes through the gap between the rollers, thereby keeping the position of the steel wire passing through the diameter gauge 3 stable, thereby facilitating the diameter gauge 3 to measure the steel wire diameter, and the measured value is more accurate.

[0061] By providing the transverse adjustment wheel set 5 and the longitudinal adjustment wheel set 6, the position of the steel wire passing through the caliper 3 can be kept stable, so that the caliper 3 can measure the diameter of the steel wire more accurately.

[0062] Embodiment 7:

[0063] The roller surfaces of the transverse adjustment wheel group 5 and the longitudinal adjustment wheel group 6 are provided with a rubber layer. When the steel wire passes between the two rollers in the transverse adjustment wheel group 5 and the longitudinal adjustment wheel group 6, it contacts the rubber layer on the roller surface. The rubber layer can reduce the friction noise between the steel wire and the roller when it moves, thereby improving comfort.

[0064] The roller surfaces of the transverse adjustment wheel set 5 and the longitudinal adjustment wheel set 6 are provided with a rubber layer, which is helpful to reduce noise and improve environmental comfort.

[0065] Embodiment 8:

[0066] Reference Figure 1 A plurality of lubrication devices 25 are installed on the mounting frame 1. The lubrication devices 25 are arranged on one side of the pulling wheel 2. The lubrication devices 25 adopt an existing publicly available structure and can pre-lubricate the steel wire wrapped around the pulling wheel 2, so that the steel wire can be more easily moved along the axial direction of the pulling wheel 2 as the pulling wheel 2 rotates, thereby preventing the steel wire from stacking at the same position of the pulling wheel 2 to cause interference.

[0067] By providing the lubricating device 25 , the steel wire wrapped around the pulling wheel 2 is pre-lubricated to prevent the steel wire from being stacked and entangled on the pulling wheel 2 .

[0068] Embodiment 9:

[0069] Reference Figure 1 An operating table 26 is installed on one side of the mounting frame 1. The operating table 26 is connected to the servo motor and the diameter gauge 3 of the pulling wheel 2 to control the rotation speed of the pulling wheel 2 and display the diameter of the steel wire before and after the current pulling wheel 2, so that the operator can adjust the rotation speed of the pulling wheel 2 through the operating table 26 and check the diameter of the steel wire before and after the current processing section is stretched.

[0070] By providing the operating table 26 , the diameter of the steel wire of the current processing section before and after stretching can be conveniently checked, and the processing status of the steel wire can be monitored so that the rotation speed of the pulling wheel 2 can be adjusted in time.

[0071] Embodiment 10:

[0072] Reference Figure 4-5 A T-shaped plate 23 is installed on the bracket 13, and a clamping strip 24 is installed at the bottom of the T-shaped plate 23. The bottom of the T-shaped plate 23 is provided with an arc-shaped contact surface 27 adapted to the fixed tube 7. The fixed tube 7 is provided with a clamping groove 22 adapted to the clamping strip 24. The clamping strip 24 is embedded in the clamping groove 22 and can slide along the clamping groove 22. When in use, the bracket 13 and the fixed tube 7 are close to each other and compress the thick spring 12, so that the clamping strip 24 at the bottom of the T-shaped plate 23 moves along the clamping groove 22, thereby preventing the bracket 13 from rotating with the insertion rod 11 as the axis.

[0073] By providing the clamping groove 22 , the T-shaped plate 23 and the clamping strip 24 , the bracket 13 can be limited to prevent the bracket 13 from rotating.

[0074] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel strand drawing device, characterized in that: The invention comprises a mounting frame (1), on which a plurality of pulling wheels (2), a caliper (3) and a tension adjustment mechanism (4) are arranged; the tension adjustment mechanism (4) comprises a track (18), on which a support plate (19) and an electric push rod (20) are mounted, the electric push rod (20) being connected to the support plate (19), a tension wheel (9) being mounted on one side of the support plate (19), and a pressure sensor (10) being mounted between the tension wheel (9) and the support plate (19).

2. The steel strand drawing device according to claim 1, characterized in that: A fixing tube (7) is installed on one side of the support plate (19), a bracket (13) is installed on one side of the fixing tube (7), the bracket (13) is connected to the pressure sensor (10), two connecting rods (14) are installed on the bracket (13), the connecting rods (14) are connected to the bracket (13), and one end of the connecting rod (14) is connected to the tensioning wheel (9).

3. The steel strand drawing device according to claim 2, characterized in that: An insertion rod (11) is installed on one side of the bracket (13), one end of the insertion rod (11) is inserted into the fixing tube (7), and a thick spring (12) is sleeved on the insertion rod (11).

4. The steel strand drawing device according to claim 2, characterized in that: A limit plate (17) and a thin spring (16) are mounted on one end of the connecting rod (14), and the thin spring (16) is always in a compressed state.

5. The steel strand drawing device according to claim 1, characterized in that: A transverse adjustment wheel set (5) and a longitudinal adjustment wheel set (6) are provided on both sides of the caliper (3); the transverse adjustment wheel set (5) and the longitudinal adjustment wheel set (6) are both composed of two rollers.

6. The steel strand drawing device according to claim 5, characterized in that: A rubber layer is provided on the surface of the roller.

7. The steel strand drawing device according to claim 1, characterized in that: An operating table (26) is installed on one side of the mounting frame (1), and the operating table (26) is connected to the pulling wheel (2) and the diameter measuring instrument (3).

8. The steel strand drawing device according to claim 2, characterized in that: A T-shaped plate (23) is mounted on the bracket (13), a clamping strip (24) is mounted on the bottom of the T-shaped plate (23), and a clamping groove (22) adapted to the clamping strip (24) is provided on the fixing tube (7).

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