Elliptical structure steel cord preparation device and method

Abstract

The invention relates to the technical field of cord thread structures and rope forming, in particular to a device and method for preparing an oval-structure steel cord, and the device comprises a twisting machine, a first flywheel disc, a second flywheel disc, a synchronizing mechanism, a fastening mechanism and a shaping mechanism, and an adjustable twisting wheel and an adjustable untwisting wheel which are obliquely arranged are installed in a first equipment groove and a second equipment groove correspondingly; the adjustable twisting wheel and the adjustable untwisting wheel are rotationally connected with the first equipment groove and the second equipment groove through central shafts; the synchronizing mechanism comprises a synchronizing gear set, and the fastening mechanism comprises a pressing buckle. The shaping mechanism comprises a leveling wheel set and a guide wheel set. The center shaft is rotated to drive the inclined plane cylinder to rotate, when the inclined plane cylinder rotates, the adjustable twisting wheel and the adjustable untwisting wheel can be driven to rotate at a certain inclination angle, the included angle between the adjustable twisting wheel and the adjustable untwisting wheel and a core wire can be increased or decreased, and then the twisting number and the untwisting number can be adjusted; core wires in the cord thread are prevented from being crossed and wound.

Description

Technical Field

[0001] The invention relates to the technical field of cord structure and rope-making, and in particular to a device and method for preparing an elliptical steel cord. Background Art

[0002] During the cord production process, the two core wires of the cord are wrapped with multiple surface wires as core strands. Multiple surface wires are wrapped around two parallel core wires to form a cord with a cross-section close to an elliptical structure. When the core strands of the cord are twisted, the two core wires are twisted by the core wire reverse wheel, and then untwisted by the cord reverse wheel. It was measured during the actual production process that the number of untwisted core wires is less than the number of twisted core wires, resulting in frequent crossing of the two core wires, making it difficult to distribute them in parallel in the center of the rope cord. When the cord passes through the virtual twister, the two core wires are further squeezed by the surface wire steel wire, causing the two core wires to cross and overlap, resulting in the quality of the cord rope not meeting the requirements. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that the two core wires in the center of the cord are difficult to keep parallel during the production process of the cord, the present invention provides an elliptical structure steel cord preparation device and method to solve the above problem.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an elliptical structure steel cord preparation device, including a twisting machine and a first flywheel disc and a second flywheel disc arranged in mirror symmetry, the twisting machine drives the first flywheel disc and the second flywheel disc to rotate through a main shaft, and also includes a synchronization mechanism, a fastening mechanism and a shaping mechanism, a first equipment slot is provided at the connection between the first flywheel disc and the main shaft, a second equipment slot is provided at the connection between the second flywheel disc and the main shaft, and an adjustable twisting wheel and an adjustable untwisting wheel are installed in the first equipment slot and the second equipment slot, and the adjustable twisting wheel and the adjustable untwisting wheel are connected to the first equipment slot. A device slot and a second device slot are rotatably connected through a central axis, and the core wire first passes through the bottom of two adjustable twisting wheels in sequence and then passes through the top of two adjustable untwisting wheels in sequence, and the inclination direction of the adjustable twisting wheel is the same as the inclination direction of the adjustable untwisting wheel; the synchronization mechanism includes a synchronization gear set, and one end of two adjacent central axes is transmission-connected by the synchronization gear set, and the fastening mechanism includes a clamping buckle, and the clamping buckle is detachably connected to the other end of the two adjacent central axes; the shaping mechanism includes a leveling wheel set and a guide wheel set arranged at both ends of the leveling wheel set, and the core wire can pass through the leveling wheel set and the guide wheel set.

[0005] Preferably, the smoothing wheel group includes a plurality of smoothing wheels arranged in an up-and-down staggered manner along the core line's forward direction, the guide wheel group includes a plurality of guide wheels arranged in an up-and-down staggered manner along the core line's forward direction, the smoothing wheel is a cylindrical roller, and the guide wheel is a V-groove wheel.

[0006] Preferably, a beveled cylinder with a beveled top is rotatably installed on both sides of the adjustable twisting wheel and the adjustable untwisting wheel, the bottom plane of the beveled cylinder fits with the side of the adjustable twisting wheel or the adjustable untwisting wheel, the bevel at the top of the beveled cylinder fits with the inner wall of the first equipment slot or the second equipment slot, the central axis passes through the beveled cylinder and is fixedly connected to the beveled cylinder, the centers of the adjustable twisting wheel and the adjustable untwisting wheel are rotatably connected to the central axis through bearings, and the axis of the central axis is set at an angle to the axis of the adjustable twisting wheel and the adjustable untwisting wheel.

[0007] Preferably, the synchronous gear set includes a driving gear and two driven gears, the two driven gears are coaxially fixedly connected to the two center shafts, the driving gear is rotatably installed on the outside of the first equipment slot and the second equipment slot, the two driven gears are respectively meshed with the driving gear from both sides, an adjustment handle is also fixed at the center of the driving gear, and the driving gear drives the adjustable twisting wheel and the adjustable untwisting wheel to rotate in the same direction through the driven gear and the center shaft.

[0008] Preferably, the clamping buckle includes an upper pressure block, a lower pressure block and a locking screw, the lower pressure block is fixed to the outside of the first equipment slot and the second equipment slot, a semicircular groove for clamping the center axis is opened between the upper pressure block and the lower pressure block, the locking screw passes through the upper pressure block and the bottom end is rotatably connected to the lower pressure block, and the locking screw is threadedly connected to the upper pressure block.

[0009] Preferably, the shaping mechanism also includes a mounting plate, a lower fixed block, an upper fixed block and a plurality of sliding blocks, the lower fixed block and the upper fixed block are respectively fixed to the mounting plate along the upper and lower sides of the core line, a plurality of smoothing wheels and guide wheels located on the lower side of the core line are rotatably mounted on the lower fixed block, a plurality of smoothing wheels and guide wheels located on the upper side of the core line are rotatably mounted on the sliding blocks one by one, and the sliding blocks are slidably connected to the upper fixed block.

[0010] Preferably, a limit strip is vertically slidably installed on the mounting plate, and a plurality of limit studs are threadedly connected to the limit strip, and the lower end of the limit stud passes through the upper fixed block and abuts against the sliding block, and a locking block is horizontally slidably installed on the top of the upper fixed block, and a plurality of locking teeth corresponding to the limit studs are fixed on the top of the locking block, and a threaded sleeve is fixed on one side of the upper fixed block, and a locking bolt is connected to the inner thread of the threaded sleeve, and the locking bolt is used to push the locking block and the locking teeth to move toward the limit stud, and a spring seat is fixed on the other side of the upper fixed block, and the spring seat and the locking block are connected by a spring, and the spring is used to push the locking block away from the limit stud.

[0011] Preferably, both ends of the limit strip are threadedly connected with adjusting screws, the adjusting screws are rotatably connected to the mounting plate via a screw seat, and a hand wheel is fixed to the top end of the adjusting screw.

[0012] A method for preparing an elliptical structure steel cord comprises the above-mentioned elliptical structure steel cord preparation device, and further comprises the following steps:

[0013] S1, firstly, the core wire is sent from the center of the main shaft at the first flywheel disc into the first equipment slot and passes through the bottom of the adjustable twisting wheel, then the core wire passes through the edges of the first flywheel disc and the second flywheel disc and is sent into the second equipment slot, the core wire passes through the bottom of the adjustable twisting wheel in the second equipment slot and passes through the center of the first flywheel disc from the center of the second flywheel disc, at this time, the core wire located at the center of the first flywheel disc and the second flywheel disc is wound by the surface line to form a cord, the cord enters the first equipment slot from the center of the first flywheel disc and passes through the top of the adjustable untwisting wheel, then the cord passes through the edges of the first flywheel disc and the second flywheel disc and is sent into the second equipment slot, the cord passes through the top of the adjustable untwisting wheel in the second equipment slot and passes out from the center of the main shaft at the second flywheel disc to the shaping mechanism;

[0014] S2, rotating the synchronous gear set to drive the central shaft to rotate, so that the inclination direction of the adjustable twisting wheel and the adjustable untwisting wheel are consistent, that is, the adjustable twisting wheel and the adjustable untwisting wheel are both S twist or both Z twist, and when the core wire is S twist, the inclination direction of the adjustable twisting wheel and the adjustable untwisting wheel are both Z twist, when the core wire is Z twist, the inclination direction of the adjustable twisting wheel and the adjustable untwisting wheel are both S twist, when the core wire passes from below the adjustable twisting wheel, the inclination direction of the adjustable twisting wheel is consistent with the twisting direction of the core wire, and the core wire is twisted; when the cord passes from above the adjustable untwisting wheel, the inclination direction of the adjustable untwisting wheel is opposite to the twisting direction of the core wire inside the cord, and the core wire is untwisted;

[0015] S3. After the cord enters the shaping mechanism, it is sent into the smoothing wheel group through the guide wheel group of the shaping mechanism, and the cord is squeezed by the smoothing wheel group to form an elliptical cross-section of the cord.

[0016] The beneficial effect of the present invention is that an adjustable twisting wheel, an adjustable untwisting wheel and a synchronization mechanism are provided. When the inclination direction of the adjustable twisting wheel and the adjustable untwisting wheel needs to be adjusted, the inclined cylinder is driven to rotate by rotating the central axis. When the inclined cylinder rotates, the adjustable twisting wheel and the adjustable untwisting wheel can be driven to rotate at a certain inclination angle. When the central axis rotates 180°, the inclination direction of the adjustable twisting wheel and the adjustable untwisting wheel can be changed to an S twist direction or a Z twist direction to meet the production requirements of different core wires and surface wires. When the central axis rotates less than 180°, the angle between the adjustable twisting wheel and the adjustable untwisting wheel and the core wire can be increased or decreased, thereby adjusting the twisting amount and the untwisting amount to prevent the core wire inside the cord from being cross-entangled after the cord production is completed. The adjustable twisting wheel and the adjustable untwisting wheel are driven to rotate in the same direction at the same time by the synchronization mechanism, which is convenient for adjusting the two at the same time and effectively reduces the angle deviation that may be caused by separate adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an elliptical structure steel cord preparation device of the present invention;

[0019] Figure 2 It is a schematic structural diagram of a second equipment slot of an elliptical structure steel cord preparation device of the present invention;

[0020] Figure 3 It is a structural schematic diagram of an adjustable untwisting wheel of an elliptical structure steel cord preparation device of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a synchronous gear set of an elliptical structure steel cord preparation device of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a mounting plate of an elliptical structure steel cord preparation device of the present invention;

[0023] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0024] Figure 7 yes Figure 5 The enlarged view of point B in the middle;

[0025] Figure 8It is a structural schematic diagram of a core wire of an elliptical structure steel cord preparation device and method of the present invention.

[0026] 1. The first flywheel disc; 2. The second flywheel disc; 3. The main shaft; 4. The synchronous gear set; 5. The cord; 6. The shaping mechanism; 7. The first equipment slot; 8. The second equipment slot; 9. The adjustable twisting wheel; 10. The adjustable untwisting wheel; 11. The central axis; 12. The core wire; 13. The clamping buckle; 14. The leveling wheel set; 15. The guide wheel set; 16. The inclined cylinder; 17. The driving gear; 18. The driven gear; 19. The adjusting handle; 20. The upper pressure block; 21. The lower pressure block; 22. The locking screw; 23. The mounting plate; 24. The lower fixing block; 25. The upper fixing block; 26. The sliding block; 27. The limiting strip; 28. The limiting stud; 29. ​​The locking block; 30. The locking teeth; 31. The locking bolt; 32. The spring seat; 33. The adjusting screw; 34. The hand wheel; 35. The surface line. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0029] like Figures 1 to 8As shown, the present invention provides an embodiment of an elliptical structure steel cord preparation device and method, including a twisting machine and a first flywheel disc 1 and a second flywheel disc 2 arranged in mirror symmetry. The twisting machine drives the first flywheel disc 1 and the second flywheel disc 2 to rotate through a main shaft 3. The twisting machine and the flywheel discs both adopt the existing technology. The present application is improved based on the existing twisting machine, specifically including a synchronization mechanism, a fastening mechanism and a shaping mechanism 6. A first equipment slot 7 is provided at the connection between the first flywheel disc 1 and the main shaft 3, and a second equipment slot 8 is provided at the connection between the second flywheel disc 2 and the main shaft 3. An adjustable twisting wheel 9 and an adjustable untwisting wheel 10 are installed in the first equipment slot 7 and the second equipment slot 8. The adjustable twisting wheel 9 and the adjustable untwisting wheel 10 are rotatably connected to the first equipment slot 7 and the second equipment slot 8 through a central shaft 11. The core wire 12 first passes through the bottom of the two adjustable twisting wheels 9 in sequence and then passes through the top of the two adjustable untwisting wheels 10 in sequence. The inclination direction of the adjustable twisting wheel 9 is the same as the inclination direction of the adjustable untwisting wheel 10.

[0030] When the core wire 12 and the surface wire 35 are wound, S twist or Z twist will be adopted according to actual production needs. Therefore, in order to adapt to the different winding directions of the core wire 12 and the surface wire 35, the present application provides an adjustable twisting wheel 9 and an adjustable untwisting wheel 10, both sides of which are rotatably installed with an inclined cylinder 16 with an inclined top, the bottom plane of the inclined cylinder 16 is in contact with the side of the adjustable twisting wheel 9 or the adjustable untwisting wheel 10, the inclined surface of the top of the inclined cylinder 16 is in contact with the inner wall of the first equipment slot 7 or the second equipment slot 8, the central axis 11 passes through the inclined cylinder 16 and is fixedly connected to the inclined cylinder 16, the centers of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 are rotatably connected to the central axis 11 through bearings, and the axis of the central axis 11 is set at an angle to the axis of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10.

[0031] The synchronization mechanism includes a synchronization gear set 4, one end of two adjacent center shafts 11 is connected by transmission through the synchronization gear set 4, the fastening mechanism includes a clamping buckle 13, the clamping buckle 13 is detachably connected to the other end of the two adjacent center shafts 11, the synchronization gear set 4 includes a driving gear 17 and two driven gears 18, the two driven gears 18 are respectively coaxially fixedly connected to the two center shafts 11, the driving gear 17 is rotatably installed on the outside of the first equipment slot 7 and the second equipment slot 8, the two driven gears 18 are respectively meshed with the driving gear 17 from both sides, and an adjustment handle 19 is also fixed to the center of the driving gear 17. The driving gear 17 drives the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 to rotate in the same direction through the driven gear 18 and the center shaft 11, which is convenient for adjusting the two at the same time and effectively reduces the angle deviation that may occur when adjusting separately.

[0032] When it is necessary to adjust the inclination direction of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10, the inclined cylinder 16 is driven to rotate by rotating the central axis 11. When the inclined cylinder 16 rotates, it can drive the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 to rotate at a certain inclination angle. When the central axis 11 rotates 180°, the inclination direction of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 can be changed to S twist direction or Z twist direction to meet the production requirements of different core wires 12 and surface wires 35. When the central axis 11 rotates less than 180°, the angle between the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 and the core wire 12 can be increased or decreased, thereby adjusting the twisting amount and the untwisting amount to prevent the core wire 12 inside the cord 5 from cross-entanglement after the production is completed.

[0033] The clamping buckle 13 includes an upper clamping block 20, a lower clamping block 21 and a locking screw 22. The lower clamping block 21 is fixed to the outer sides of the first equipment slot (7) and the second equipment slot (8). A semicircular groove for clamping the central axis 11 is provided between the upper clamping block 20 and the lower clamping block 21. The locking screw 22 passes through the upper clamping block 20 and the bottom end is rotatably connected to the lower clamping block 21. The locking screw 22 is threadedly connected to the upper clamping block 20.

[0034] After the angle adjustment of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 is completed, the locking screw 22 is tightened to make the upper pressing block 20 press one end of the central axis 11, so as to lock the central axis 11 and prevent the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 from loosening during use.

[0035] The shaping mechanism 6 includes a smoothing wheel group 14 and a guide wheel group 15 arranged at both ends of the smoothing wheel group 14. The core wire 12 can pass through the smoothing wheel group 14 and the guide wheel group 15. The smoothing wheel group 14 includes a plurality of smoothing wheels arranged alternately up and down along the advancing direction of the core wire 12. The guide wheel group 15 includes a plurality of guide wheels arranged alternately up and down along the advancing direction of the core wire 12. The smoothing wheel is a cylindrical roller, and the guide wheel is a V-groove wheel.

[0036] The shaping mechanism 6 also includes a mounting plate 23, a lower fixed block 24, an upper fixed block 25 and a plurality of sliders 26. The lower fixed block 24 and the upper fixed block 25 are respectively fixed on the mounting plate 23 along the upper and lower sides of the core wire 12. The plurality of smoothing wheels and guide wheels located on the lower side of the core wire 12 are rotatably mounted on the lower fixed block 24. The plurality of smoothing wheels and guide wheels located on the upper side of the core wire 12 are rotatably mounted on the sliders 26 in a one-to-one correspondence. The sliders 26 are slidably connected to the upper fixed block 25.

[0037] A limit strip 27 is vertically slidably installed on the mounting plate 23, and a plurality of limit studs 28 are threadedly connected to the limit strip 27. The lower ends of the limit studs 28 pass through the upper fixed block 25 and abut against the slider 26. A locking block 29 is horizontally slidably installed on the top of the upper fixed block 25. A plurality of locking teeth 30 corresponding to the limit studs 28 are fixed on the top of the locking block 29. A threaded sleeve is fixed on one side of the upper fixed block 25, and a locking bolt 31 is connected to the inner thread of the threaded sleeve. The locking bolt 31 is used to push the locking block 29 and the locking teeth 30 to move toward the limit stud 28. A spring seat 32 is fixed on the other side of the upper fixed block 25. The spring seat 32 and the locking block 29 are connected by a spring. When the locking bolt 31 is loosened, the spring can push the locking block 29 away from the limit stud 28 to achieve unlocking.

[0038] Both ends of the limit bar 27 are also threadedly connected with adjusting screws 33 , and the adjusting screws 33 are rotatably connected to the mounting plate 23 through a screw seat, and a hand wheel 34 is fixed to the top of the adjusting screw 33 .

[0039] The working principle of the shaping mechanism 6 is as follows: after the finished cord 5 with two core wires 12 is fed into the shaping mechanism 6, the limiting stud 28 is first rotated to adjust the gap between the smoothing wheels on the upper and lower sides of the cord 5, so that the gap is gradually reduced to shape the cord 5. After the limiting stud 28 is adjusted, the hand wheel 34 is turned to drive the adjusting screw 33 to rotate, and the adjusting screw 33 pushes the limiting bar 27 to move downward. The limiting bar 27 moves downward and drives multiple limiting studs 28 to move downward at the same time, so as to adjust the pressure between the smoothing wheel and the cord 5. After the adjustment is completed, the locking bolt 31 is tightened to push the locking block 29 to move. The locking block 29 drives the locking tooth 30 to abut against the limiting stud 28 to lock the limiting stud 28, and the adjusting screw 33 itself also has a self-locking function to prevent the smoothing wheel from loosening during use. Finally, the cord 5 is positioned by the guide wheel so that the cord 5 actually abuts against the circumferential surface of the smoothing wheel during the forward process to prevent the core wire 12 from slipping.

[0040] A method for preparing an elliptical structure steel cord comprises the above-mentioned elliptical structure steel cord preparation device, and further comprises the following steps:

[0041] S1, firstly, the core wire 12 is sent from the center of the main shaft 3 at the first flywheel disc 1 into the first equipment slot 7 and passes through the bottom of the adjustable twisting wheel 9, then the core wire 12 passes through the edges of the first flywheel disc 1 and the second flywheel disc 2 and is sent into the second equipment slot 8, the core wire 12 passes from the bottom of the adjustable twisting wheel 9 in the second equipment slot 8 and passes from the center of the second flywheel disc 2 into the center of the first flywheel disc 1, at this time, the core wire 12 located at the center of the first flywheel disc 1 and the second flywheel disc 2 is wound by the surface wire 35 to form a cord 5, the cord 5 enters the first equipment slot 7 from the center of the first flywheel disc 1 and passes from the top of the adjustable untwisting wheel 10, then the cord 5 passes through the edges of the first flywheel disc 1 and the second flywheel disc 2 and is sent into the second equipment slot 8, the cord 5 passes from the top of the adjustable untwisting wheel 10 in the second equipment slot 8 and passes from the center of the main shaft 3 at the second flywheel disc 2 to the shaping mechanism 6;

[0042] S2, rotating the synchronous gear set 4 to drive the central shaft 11 to rotate, so that the inclination direction of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 are consistent, that is, the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 are both S twist or both Z twist, and when the core wire 12 is S twist, the inclination direction of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 are both Z twist, and when the core wire 12 is Z twist, the inclination direction of the adjustable twisting wheel 9 and the adjustable untwisting wheel 10 are both S twist, when the core wire 12 passes from below the adjustable twisting wheel 9, the inclination direction of the adjustable twisting wheel 9 is consistent with the twisting direction of the core wire 12, and the core wire 12 is twisted; when the cord 5 passes from above the adjustable untwisting wheel 10, the inclination direction of the adjustable untwisting wheel 10 is opposite to the twisting direction of the core wire 12 inside the cord 5, and the core wire 12 is untwisted;

[0043] S3. After the cord 5 enters the shaping mechanism 6, the cord 5 is sent into the smoothing wheel set 14 through the guide wheel set 15 of the shaping mechanism 6. The cord 5 is squeezed by the smoothing wheel set 14 so that the cross section of the cord 5 forms an elliptical structure.

[0044] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above are only preferred implementation methods of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A device for preparing an elliptical steel cord, comprising a twisting machine and a first flywheel disc (1) and a second flywheel disc (2) arranged in mirror symmetry, wherein the twisting machine drives the first flywheel disc (1) and the second flywheel disc (2) to rotate through a main shaft (3), characterized in that: It also includes a synchronization mechanism, a fastening mechanism and a shaping mechanism (6); a first equipment slot (7) is provided at the connection between the first flywheel disc (1) and the main shaft (3); a second equipment slot (8) is provided at the connection between the second flywheel disc (2) and the main shaft (3); an adjustable twisting wheel (9) and an adjustable untwisting wheel (10) are both installed in the first equipment slot (7) and the second equipment slot (8); the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) are rotatably connected to the first equipment slot (7) and the second equipment slot (8) via a central axis (11); the core wire (12) first passes through the bottom of the two adjustable twisting wheels (9) and then passes through the top of the two adjustable untwisting wheels (10); the inclination direction of the adjustable twisting wheel (9) is the same as the inclination direction of the adjustable untwisting wheel (10); The synchronization mechanism comprises a synchronization gear set (4), one end of two adjacent central shafts (11) are transmission-connected via the synchronization gear set (4), and the fastening mechanism comprises a clamping buckle (13), and the clamping buckle (13) is detachably connected to the other end of the two adjacent central shafts (11); The shaping mechanism (6) comprises a leveling wheel set (14) and guide wheel sets (15) arranged at both ends of the leveling wheel set (14), and the core wire (12) can pass through the leveling wheel set (14) and the guide wheel set (15).

2. The device for preparing an elliptical steel cord according to claim 1, characterized in that: The smoothing wheel group (14) comprises a plurality of smoothing wheels arranged in an alternating manner up and down along the advancing direction of the core wire (12); the guide wheel group (15) comprises a plurality of guide wheels arranged in an alternating manner up and down along the advancing direction of the core wire (12); the smoothing wheels are cylindrical rollers, and the guide wheels are V-grooved wheels.

3. The device for preparing an elliptical steel cord according to claim 1, characterized in that: A beveled cylinder (16) with a beveled top is rotatably mounted on both sides of the adjustable twisting wheel (9) and the adjustable untwisting wheel (10); the bottom plane of the beveled cylinder (16) fits with the side surface of the adjustable twisting wheel (9) or the adjustable untwisting wheel (10); the beveled top of the beveled cylinder (16) fits with the inner wall of the first device slot (7) or the second device slot (8); the central axis (11) passes through the beveled cylinder (16) and is fixedly connected to the beveled cylinder (16); the centers of the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) are rotatably connected to the central axis (11) via bearings; the axis of the central axis (11) is arranged at an angle to the axis of the adjustable twisting wheel (9) and the axis of the adjustable untwisting wheel (10).

4. The device for preparing an elliptical steel cord according to claim 1, characterized in that: The synchronous gear set (4) comprises a driving gear (17) and two driven gears (18), the two driven gears (18) are respectively coaxially fixedly connected to the two central shafts (11), the driving gear (17) is rotatably mounted on the outside of the first equipment slot (7) and the second equipment slot (8), the two driven gears (18) are respectively meshed with the driving gear (17) from both sides, an adjustment handle (19) is also fixed at the center of the driving gear (17), and the driving gear (17) drives the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) to rotate in the same direction through the driven gear (18) and the central shaft (11).

5. The device for preparing an elliptical steel cord according to claim 1, characterized in that: The clamping buckle (13) includes an upper clamping block (20), a lower clamping block (21) and a locking screw (22); the lower clamping block (21) is fixed to the outer sides of the first equipment slot (7) and the second equipment slot (8); a semicircular groove for clamping the central axis (11) is provided between the upper clamping block (20) and the lower clamping block (21); the locking screw (22) passes through the upper clamping block (20) and the bottom end is rotatably connected to the lower clamping block (21); the locking screw (22) is threadedly connected to the upper clamping block (20).

6. The device for preparing an elliptical steel cord according to claim 2, characterized in that: The shaping mechanism (6) further comprises a mounting plate (23), a lower fixing block (24), an upper fixing block (25) and a plurality of sliding blocks (26); the lower fixing block (24) and the upper fixing block (25) are respectively fixed on the mounting plate (23) along the upper and lower sides of the core wire (12); a plurality of leveling wheels and guide wheels located on the lower side of the core wire (12) are rotatably mounted on the lower fixing block (24); a plurality of leveling wheels and guide wheels located on the upper side of the core wire (12) are rotatably mounted on the sliding blocks (26) in a one-to-one correspondence; and the sliding blocks (26) are slidably connected to the upper fixing block (25).

7. The device for preparing an elliptical steel cord according to claim 6, characterized in that: A limit strip (27) is vertically slidably mounted on the mounting plate (23), a plurality of limit studs (28) are threadedly connected to the limit strip (27), the lower ends of the limit studs (28) pass through the upper fixing block (25) and abut against the sliding block (26), a locking block (29) is horizontally slidably mounted on the top of the upper fixing block (25), a plurality of locking teeth (30) corresponding to the limit studs (28) are fixed on the top of the locking block (29), A threaded sleeve is fixed on one side of the upper fixing block (25), and a locking bolt (31) is connected to the inner thread of the threaded sleeve. The locking bolt (31) is used to push the locking block (29) and the locking tooth (30) to move toward the limiting stud (28). A spring seat (32) is fixed on the other side of the upper fixing block (25). The spring seat (32) and the locking block (29) are connected by a spring, and the spring is used to push the locking block (29) away from the limiting stud (28).

8. The device for preparing an elliptical steel cord according to claim 1, characterized in that: The two ends of the limit strip (27) are also threadedly connected with adjusting screws (33), the adjusting screws (33) are rotatably connected to the mounting plate (23) via a screw seat, and a hand wheel (34) is fixed to the top of the adjusting screw (33).

9. A method for preparing an elliptical structure steel cord, characterized in that: The device for preparing an elliptical structural steel cord according to any one of claims 1 to 8 further comprises the following steps: S1. First, the core wire (12) is fed from the center of the main shaft (3) at the first flywheel (1) into the first equipment slot (7) and passed from below the adjustable twisting wheel (9). Then, the core wire (12) passes through the edges of the first flywheel (1) and the second flywheel (2) and is fed into the second equipment slot (8). The core wire (12) passes from below the adjustable twisting wheel (9) in the second equipment slot (8) and passes from the center of the second flywheel (2) into the center of the first flywheel (1). At this time, the surface wire (35) is aligned between the first flywheel (1) and the The core wire (12) at the center of the second flywheel (2) is wound to form a cord (5), the cord (5) enters the first equipment slot (7) from the center of the first flywheel (1) and passes through the top of the adjustable untwisting wheel (10), then the cord (5) passes through the edges of the first flywheel (1) and the second flywheel (2) and is fed into the second equipment slot (8), the cord (5) passes through the top of the adjustable untwisting wheel (10) in the second equipment slot (8) and passes out from the center of the main shaft (3) at the second flywheel (2) to the shaping mechanism (6); S2, rotating the synchronous gear set (4) to drive the central shaft (11) to rotate, so that the inclination direction of the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) are consistent, that is, the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) are both S twist or both Z twist, and when the core wire (12) is S twist, the inclination direction of the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) are both Z twist, and when the core wire (12) is Z twist, the adjustable twisting wheel (9) and the adjustable untwisting wheel (10) are both Z twist. The tilting direction of the untwisting wheel (10) is adjusted to be S-twisting. When the core wire (12) passes below the adjustable twisting wheel (9), the tilting direction of the adjustable twisting wheel (9) is consistent with the twisting direction of the core wire (12), and the core wire (12) is twisted; when the cord (5) passes above the adjustable untwisting wheel (10), the tilting direction of the adjustable untwisting wheel (10) is opposite to the twisting direction of the core wire (12) inside the cord (5), and the core wire (12) is untwisted; S3. After the cord (5) enters the shaping mechanism (6), the cord (5) is sent into the leveling wheel group (14) through the guide wheel group (15) of the shaping mechanism (6), and the cord (5) is squeezed by the leveling wheel group (14) so ​​that the cross section of the cord (5) forms an elliptical structure.

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