A bridge steel wire production positioning device

Abstract

This invention discloses a positioning device for bridge steel wire production, belonging to the technical field of steel wire production equipment. It includes a wire feeding device, a housing, a centering positioning mechanism, and a convergence positioning mechanism. This invention features a reasonable and simple structure, low production cost, and convenient installation. Through multiple sets of staggered centering positioning mechanisms, it achieves precise centering of the steel wire, effectively preventing deviation and entanglement during production, thus improving the quality and efficiency of steel wire production. This invention utilizes a synchronous drive device to achieve automated positioning adjustment, reducing manual operation and ensuring the accuracy and stability of positioning, meeting the needs of high-quality, high-volume bridge steel wire production. The invention also incorporates a convergence positioning mechanism, which uses an automatic convergence mechanism to tightly gather multiple steel wires into a polygonal shape, providing a regular steel wire bundle for subsequent processing and enhancing the performance of the finished steel wire product.

Description

Technical Field

[0001] This invention relates to the field of steel wire production equipment technology, and in particular to a positioning device for bridge steel wire production. Background Technology

[0002] In modern bridge construction, steel wire, as a key load-bearing material, plays a decisive role in the safety and stability of bridges due to its production quality. In the production process of bridge steel wire, wire positioning is an indispensable and crucial step. Precise positioning ensures the regularity and consistency of the steel wire during subsequent processing, weaving, and finished product forming, thereby improving the overall quality of the bridge steel wire.

[0003] However, existing positioning technologies for bridge steel wire production have many problems. On the one hand, traditional positioning devices have relatively simple structures, mostly using a single guide roller or limiting structure, making it difficult to perform comprehensive and high-precision positioning calibration of the steel wire. This leads to problems such as wire misalignment and entanglement during production, seriously affecting the production quality and efficiency. On the other hand, existing positioning devices have a low degree of automation, requiring a large amount of manual operation to adjust and monitor the positioning status of the steel wire. This not only increases labor costs but also makes it difficult to guarantee the accuracy and stability of positioning, failing to meet the demands of modern bridge construction for high-quality, high-volume steel wire production. In addition, some positioning devices lack effective gathering measures in the steel wire bonding stage, preventing multiple steel wires from fitting tightly together during bonding, affecting subsequent processing and performance.

[0004] Therefore, developing a bridge steel wire production positioning device with a reasonable and simple structure, low production cost, convenient installation, and high-precision, automated positioning capability is the key to solving the current industry problems and improving the production level of bridge steel wire. Summary of the Invention

[0005] The purpose of this invention is to provide a bridge steel wire production positioning device to solve the above-mentioned problems. This device addresses the issues of low positioning accuracy, insufficient automation, and poor steel wire aggregation effect of traditional positioning devices, which make it difficult to meet the needs of high-quality, large-volume bridge steel wire production.

[0006] To address the aforementioned problems, the present invention provides a technical solution: a bridge steel wire production positioning device, comprising a wire feeding device, an outer shell, a centering positioning mechanism, and a convergence positioning mechanism; the wire feeding device is fixedly connected to the opening on the right side of the outer shell; there are several centering positioning mechanisms, which are arranged alternately in a left-right and up-down manner, and all of them are fixedly connected to the right side inside the outer shell; the convergence positioning mechanism is located inside the left side of the outer shell.

[0007] Preferably, the specific structure of the yarn feeding device includes a mounting box, a mounting cavity, a connecting shaft, a winding drum, and a guide roller; the mounting box has a mounting cavity inside; there are several connecting shafts, which are arranged in a vertical row and are all fixedly connected to the right side of the mounting cavity, and several winding drums are movably connected to the outside of the connecting shafts; there are several guide rollers, which are arranged in a vertical row and are movably connected to the left side of the mounting cavity.

[0008] Preferably, the centering positioning mechanism includes a centering positioning housing, a centering positioning mechanism, limiting guide blocks, and limiting guide rollers; the centering positioning mechanism is located in the center of the centering positioning housing; there are four limiting guide blocks, which are fixedly connected to the left and right sides of the center of the centering positioning housing at the upper and lower positions respectively; there are four limiting guide rollers, which are movably connected to the left and right sides of the centering positioning housing at the upper and lower positions respectively.

[0009] Preferably, the centering and positioning mechanism includes a guide groove seat one, a longitudinal guide groove one, a slider one, a double-ended screw one, a synchronous drive device, a centering roller, a guide groove seat two, a longitudinal guide groove two, a slider two, and a double-ended screw two. The guide groove seat one is fixedly connected to the upper center of the centering and positioning housing. A longitudinal guide groove one is provided inside the lower side of the guide groove seat one, and a double-ended screw one is movably connected to the center of the longitudinal guide groove one. The guide groove seat two is fixedly connected to the lower center of the centering and positioning housing. A longitudinal guide groove two is provided inside the upper side of the guide groove seat two, and a double-ended screw two is movably connected to the center of the longitudinal guide groove two. The synchronous drive device is fixedly connected to the centering roller. At the rear center of the positioning housing, the transmission shafts on the upper and lower sides of the synchronous drive device are respectively connected to the rear center of the double-ended screw one and the double-ended screw two; there are two sliders one, which are movably connected to the front and rear positions of the longitudinal guide groove one, and the threaded holes in the center of the two sliders one are respectively connected to the external threads on both sides of the double-ended screw one; there are two sliders two, which are movably connected to the front and rear positions of the longitudinal guide groove two, and the threaded holes in the center of the two sliders two are respectively connected to the external threads on both sides of the double-ended screw two; a central roller is movably connected between the upper side of each slider two and the lower side of the corresponding slider.

[0010] Preferably, the synchronous drive device includes a motor, a drive shaft, a drive pulley, a synchronous belt, and a transmission box. There are two drive shafts, each movably connected to the upper and lower interiors of the transmission box. A drive pulley is fixedly connected to the outer center of each drive shaft, and the pulleys are connected to each other via the synchronous belt. One side of each drive shaft is connected to the rear center of a double-ended screw and a double-ended screw, respectively. The motor is fixedly connected to the upper exterior of the transmission box, and its output shaft is connected to the center of the other side of the upper drive shaft.

[0011] Preferably, the specific structure of the polymerization positioning mechanism includes a first polymerization guide roller, a second polymerization guide roller, an automatic polymerization mechanism, and a polymerization positioning hole; there are several first polymerization guide rollers, which are arranged vertically and movably connected to the inside of the left side of the outer casing; there are several second polymerization guide rollers, which are all located to the left of the first polymerization guide rollers, and are arranged vertically and movably connected to the center of the inside of the left side of the outer casing; the automatic polymerization mechanism is located to the left of the second polymerization guide rollers, and is located inside the center of the left side of the outer casing; the polymerization positioning hole is located to the left center of the automatic polymerization mechanism, and is opened inside the center of the left side of the outer casing.

[0012] Preferably, the automatic aggregation mechanism includes a groove, a first spring, a lower sliding seat, a lower retaining slot, an upper retaining slot, an upper sliding seat, a second spring, a fixed pulley, a second synchronous belt, and a connecting block. There are two grooves, each located on the upper and lower sides of the left side of the outer casing. The lower sliding seat and the upper sliding seat are movably connected inside each groove. A fixed pulley is movably connected to the center of each groove, and the fixed pulleys are connected to each other via the second synchronous belt. Both sides of the second synchronous belt are fixedly connected to the interior of the lower sliding seat and the upper sliding seat via connecting blocks. A first spring and a second spring are respectively provided between the lower sliding seat and the corresponding groove. A lower retaining slot is fixedly connected to the center of the upper side of the lower sliding seat, and upper retaining slots are fixedly connected to both sides of the lower side of the upper sliding seat.

[0013] Preferably, a first clamping roller is movably connected to both inner sides of the lower clamping seat and the upper clamping seat, and a second clamping roller is movably connected to the center of the inner side of both the lower clamping seat and the upper clamping seat.

[0014] The beneficial effects of the present invention are: (1) The present invention has the characteristics of reasonable and simple structure, low production cost and convenient installation. Through multiple sets of staggered centering positioning mechanisms, the steel wire is accurately centered, which effectively avoids the steel wire from shifting or tangling during the production process, and improves the quality and efficiency of steel wire production.

[0015] (2) The present invention uses a synchronous drive device to achieve automated positioning and adjustment, reduce manual operation, ensure the accuracy and stability of positioning, and meet the needs of high-quality, large-volume bridge steel wire production.

[0016] (3) The present invention is provided with a polymerization and positioning mechanism, which uses an automatic polymerization mechanism to tightly gather multiple steel wires into a polygon, providing a regular steel wire bundle for subsequent processing and enhancing the performance of the finished steel wire product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 for Figure 1sectional view of .

[0019] Figure 3 This is a schematic diagram of the wire feeding device.

[0020] Figure 4 This is a schematic diagram of the centering positioning mechanism.

[0021] Figure 5 This is a schematic diagram of the centering and positioning mechanism.

[0022] Figure 6 This is a schematic diagram of the synchronous drive device.

[0023] Figure 7 This is a schematic diagram of the aggregation positioning mechanism.

[0024] Figure 8 This is a schematic diagram of the automatic polymerization mechanism.

[0025] Figure 9 This is a schematic diagram of the structure inside the upper card slot.

[0026] 1-Filling device; 2-Outer shell; 3-Centering positioning mechanism; 4-Polymerizing positioning mechanism; 11-Mounting box; 12-Mounting cavity; 13-Connecting shaft; 14-Drum; 15-Guide roller one; 31-Centering positioning shell; 32-Centering positioning mechanism; 33-Limiting guide block; 34-Limiting guide roller; 321-Guide groove seat one; 322-Longitudinal guide groove one; 323-Slider one; 324-Double-headed screw one; 325-Synchronous drive device; 326-Centering roller; 327-Guide groove seat two; 328-Longitudinal guide groove two; 329-Slider two; 3210- Double-headed screw 2; 3251-Motor; 3252-Drive shaft; 3253-Drive pulley; 3254-Synchronous belt 1; 3255-Transmission box; 41-Polymerization guide roller 1; 42-Polymerization guide roller 2; 43-Automatic polymerization mechanism; 44-Polymerization positioning hole; 431-Groove; 432-Spring 1; 433-Sliding seat; 434-Lower slot seat; 435-Upper slot seat; 436-Upper slide seat; 437-Spring 2; 438-Fixed pulley; 439-Synchronous belt 2; 4310-Connecting block; 4351-Clip roller 1; 4352-Clip roller 2. Detailed Implementation

[0027] like Figure 1 and Figure 2As shown, the specific embodiment adopts the following technical solution: a bridge steel wire production positioning device, including a wire feeding device 1, an outer shell 2, a centering positioning mechanism 3, and a convergence positioning mechanism 4; the wire feeding device 1 is fixedly connected to the opening on the right side of the outer shell 2; there are several centering positioning mechanisms 3, which are arranged alternately in the left and right and up and down directions, and all of them are fixedly connected to the right side inside the outer shell 2; the convergence positioning mechanism 4 is located inside the left side of the outer shell 2.

[0028] like Figure 3 As shown, the specific structure of the yarn feeding device 1 includes a mounting box 11, a mounting cavity 12, a connecting shaft 13, a winding drum 14, and a guide roller 15; the mounting box 11 has a mounting cavity 12 inside; there are several connecting shafts 13, which are arranged in a vertical row and are all fixedly connected to the right side of the mounting cavity 12, and several winding drums 14 are movably connected to the outside of the several connecting shafts 13; there are several guide rollers 15, which are arranged in a vertical row and are movably connected to the left side of the mounting cavity 12.

[0029] like Figure 4 As shown, the specific structure of the centering positioning mechanism 3 includes a centering positioning housing 31, a centering positioning mechanism 32, limiting guide blocks 33, and limiting guide rollers 34; the centering positioning mechanism 32 is located in the center of the centering positioning housing 31; there are four limiting guide blocks 33, which are respectively fixedly connected to the left and right sides of the center of the centering positioning housing 31 at the upper and lower positions; there are four limiting guide rollers 34, which are respectively movably connected to the left and right sides of the centering positioning housing 31 at the upper and lower positions.

[0030] like Figure 5As shown, the specific structure of the centering and positioning mechanism 32 includes a guide groove seat 321, a longitudinal guide groove 322, a slider 323, a double-ended screw 324, a synchronous drive device 325, a centering roller 326, a second guide groove seat 327, a second longitudinal guide groove 328, a second slider 329, and a second double-ended screw 3210. The first guide groove seat 321 is fixedly connected to the upper center of the centering and positioning housing 31. The lower side of the first guide groove seat 321 has a longitudinal guide groove 322, and the double-ended screw 324 is movably connected to the center of the longitudinal guide groove 322. The second guide groove seat 327 is fixedly connected to the lower center of the centering and positioning housing 31. The upper side of the second guide groove seat 327 has a longitudinal guide groove 328, and the double-ended screw 3210 is movably connected to the center of the longitudinal guide groove 328. The synchronous drive device 325... 5. Fixedly connected to the center of the rear side of the centrally positioned housing 31, the transmission shafts on the upper and lower sides of the synchronous drive device 325 are respectively connected to the rear center of the double-ended screw 324 and the double-ended screw 3210; there are two sliders 323, which are movably connected to the front and rear positions of the longitudinal guide groove 322, respectively, and the threaded holes in the center of the two sliders 323 are respectively connected to the external threads on both sides of the double-ended screw 324; there are two sliders 329, which are movably connected to the front and rear positions of the longitudinal guide groove 328, respectively, and the threaded holes in the center of the two sliders 329 are respectively connected to the external threads on both sides of the double-ended screw 3210; a central roller 326 is movably connected between the upper side of the two sliders 329 and the lower side of the corresponding slider 323.

[0031] like Figure 6 As shown, the specific structure of the synchronous drive device 325 includes a motor 3251, a drive shaft 3252, a drive pulley 3253, a first synchronous belt 3254, and a transmission box 3255. There are two drive shafts 3252, which are movably connected to the upper and lower interiors of the transmission box 3255, respectively. A drive pulley 3253 is fixedly connected to the outer center of each of the two drive shafts 3252, and the drive pulleys 3253 are connected to each other by the first synchronous belt 3254. One side of each of the two drive shafts 3252 is connected to the rear center of the first double-ended screw 324 and the second double-ended screw 3210, respectively. The motor 3251 is fixedly connected to the upper exterior of the transmission box 3255, and the output shaft of the motor 3251 is connected to the center of the other side of the upper drive shaft 3252.

[0032] like Figure 7As shown, the specific structure of the polymerization positioning mechanism 4 includes a first polymerization guide roller 41, a second polymerization guide roller 42, an automatic polymerization mechanism 43, and a polymerization positioning hole 44. Several first polymerization guide rollers 41 are arranged vertically and movably connected to the inside of the left side of the outer casing 2. Several second polymerization guide rollers 42 are located to the left of the first polymerization guide roller 41, arranged vertically and movably connected to the center of the left side of the outer casing 2. The automatic polymerization mechanism 43 is located to the left of the second polymerization guide roller 42, and is situated inside the center of the left side of the outer casing 2. The polymerization positioning hole 44 is located to the center of the left side of the automatic polymerization mechanism 43, and is opened inside the center of the left side of the outer casing 2.

[0033] like Figure 8 As shown, the specific structure of the automatic aggregation mechanism 43 includes a groove 431, a first spring 432, a lower sliding seat 433, a lower retaining seat 434, an upper retaining seat 435, an upper sliding seat 436, a second spring 437, a fixed pulley 438, a second synchronous belt 439, and a connecting block 4310; there are two grooves 431, which are respectively opened in the upper and lower positions of the left side of the outer shell 2. The lower sliding seat 433 and the upper sliding seat 436 are movably connected inside the two grooves 431 respectively. The central slide is movably connected to a fixed pulley 438, and the fixed pulleys 438 are connected to each other by a second synchronous belt 439. Both sides of the second synchronous belt 439 are fixedly connected to the interior of the lower slide seat 433 and the upper slide seat 436 through connecting blocks 4310. The lower slide seat 433 and the upper slide seat 436 are respectively provided with a first spring 432 and a second spring 437 between them and the corresponding grooves 431. The lower slide seat 433 is fixedly connected to the upper center of the upper side of the lower slide seat 434, and the upper slide seat 436 is fixedly connected to the upper two sides of the lower side of the upper slide seat 435.

[0034] like Figure 9 As shown, a first card roller 4351 is movably connected to both sides of the inner side of the lower card slot seat 434 and the upper card slot seat 435, and a second card roller 4352 is movably connected to the center of the inner side of the lower card slot seat 434 and the upper card slot seat 435.

[0035] The invention is used as follows: It features a simple and reasonable structure, low production cost, and convenient installation. During bridge steel wire production, firstly, the corresponding drum 14 is fitted onto the outside of the corresponding connecting shaft 13. Production begins, and the steel wire unrolls from the drum 14, is initially guided by the guide roller 15 on the left side of the mounting cavity 12, and is smoothly conveyed into the outer shell 2. After entering the outer shell 2, the steel wire passes through several staggered centering positioning mechanisms 3. Taking one of the centering positioning mechanisms 3 as an example, under the action of the centering positioning mechanism 32, the motor 3251 starts, and its output shaft drives the upper transmission shaft 3252 to rotate. Through the transmission pulley 3253 and the synchronous belt 3254, the lower transmission shaft 3252 rotates synchronously. The two transmission shafts 3252 respectively drive the double-ended screw 324 and the double-ended screw 3210 to rotate. Using threaded transmission, the slider 323 and the slider 329 move within the longitudinal guide groove 322 and the longitudinal guide groove 328, thereby driving the centering... Roller 326 adjusts its position to precisely center the steel wire. Simultaneously, limit guide block 33 and limit guide roller 34 restrict the vertical deviation of the steel wire, ensuring its stable, centered movement. After multiple calibrations by the centering positioning mechanism 3, the steel wire arrives at the aggregation positioning mechanism 4. It first undergoes preliminary aggregation guidance via aggregation guide roller 1 41 and aggregation guide roller 2 42, and then enters the automatic aggregation mechanism 43. When the steel wire enters the automatic aggregation mechanism 43, it will generate pressure on the lower card slot 434 and the upper card slot 435. The pressure causes the lower slide block 433 and the upper slide block 436 to overcome the elastic force of spring 1 432 and spring 2 437 and slide within the groove 431. The fixed pulley 438 and the synchronous belt 2 439 ensure that the lower slide block 433 and the upper slide block 436 move synchronously and centered. The clamping roller 1 4351 and clamping roller 2 4352 closely adhere to the steel wire, gathering multiple steel wires into a polygon. Finally, the gathered steel wires pass through the aggregation positioning hole 44, completing the entire positioning process and entering the subsequent production process in a regular state.

[0036] The control method of this invention is either manual start-up or control through existing automation technology. The wiring diagram of the power element and the supply of power are common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail here.

[0037] In the description of the invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention 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 the invention.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications may be made to the invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for bridge steel wire production, characterized in that: It includes a wire feeding device (1), an outer shell (2), a centering positioning mechanism (3), and a convergence positioning mechanism (4); The opening on the right side of the outer shell (2) is fixedly connected to a wire feeding device (1); There are several centering positioning mechanisms (3), and the several centering positioning mechanisms (3) are arranged alternately in the left and right and up and down. The several centering positioning mechanisms (3) are all fixedly connected to the right side of the outer shell (2). The aggregation positioning mechanism (4) is located inside the left side of the outer shell (2); The specific structure of the polymerization positioning mechanism (4) includes polymerization guide roller one (41), polymerization guide roller two (42), automatic polymerization mechanism (43) and polymerization positioning hole (44). There are several polymer guide rollers (41), and the several polymer guide rollers (41) are arranged vertically and movably connected to the inside of the left side of the outer shell (2); There are several polymer guide rollers (42), and all of the polymer guide rollers (42) are located to the left of polymer guide roller (41). The polymer guide rollers (42) are arranged vertically and movably connected to the center of the left side of the outer shell (2). The automatic polymerization mechanism (43) is located to the left of the second polymerization guide roller (42), and the automatic polymerization mechanism (43) is located inside the center of the left side of the outer shell (2); The aggregation positioning hole (44) is located in the center of the left side of the automatic aggregation mechanism (43), and the aggregation positioning hole (44) is opened inside the center of the left side of the outer shell (2); The specific structure of the automatic aggregation mechanism (43) includes a groove (431), a spring one (432), a sliding seat (433), a lower slot seat (434), an upper slot seat (435), an upper sliding seat (436), a spring two (437), a fixed pulley (438), a synchronous belt two (439), and a connecting block (4310). There are two grooves (431), which are respectively opened in the upper and lower positions of the left side of the outer shell (2). The two grooves (431) are respectively movably connected to the lower slide seat (433) and the upper slide seat (436). The center of each of the two grooves (431) is movably connected to a fixed pulley (438), and the fixed pulleys (438) are connected to each other by a second synchronous belt (439). The two sides of the second synchronous belt (439) are fixedly connected to the interior of the lower slide seat (433) and the upper slide seat (436) by connecting blocks (4310). Spring 1 (432) and spring 2 (437) are respectively provided between the lower slide seat (433) and the upper slide seat (436) and the corresponding groove (431). A lower slot seat (434) is fixedly connected to the upper center of the lower slide seat (433), and upper slot seats (435) are fixedly connected to both sides of the lower side of the upper slide seat (436).

2. The bridge steel wire production positioning device according to claim 1, characterized in that: The specific structure of the feeding device (1) includes a mounting box (11), a mounting cavity (12), a connecting shaft (13), a drum (14), and a guide roller (15). The mounting box (11) has a mounting cavity (12) inside; There are several connecting shafts (13), which are arranged in a vertical column and are all fixedly connected to the right side of the mounting cavity (12). Several rollers (14) are movably connected to the outside of each of the connecting shafts (13). There are several guide rollers (15), and the several guide rollers (15) are arranged in a vertical row and are all movably connected to the left side of the mounting cavity (12); The specific structure of the centering positioning mechanism (3) includes a centering positioning housing (31), a centering positioning mechanism (32), a limiting guide block (33), and a limiting guide roller (34). The centering positioning mechanism (32) is located in the center of the centering positioning housing (31); There are four limiting guide blocks (33), and the four limiting guide blocks (33) are respectively fixedly connected to the left and right sides of the center of the central positioning housing (31) at the upper and lower positions. There are four limiting guide rollers (34), which are respectively movably connected to the left and right sides and the upper and lower positions inside the central positioning housing (31).

3. The bridge steel wire production positioning device according to claim 2, characterized in that: The specific structure of the centering and positioning mechanism (32) includes a guide groove seat one (321), a longitudinal guide groove one (322), a slider one (323), a double-headed screw one (324), a synchronous drive device (325), a centering roller (326), a guide groove seat two (327), a longitudinal guide groove two (328), a slider two (329), and a double-headed screw two (3210). The guide slot seat (321) is fixedly connected to the upper center of the center positioning housing (31). The lower side of the guide slot seat (321) is provided with a longitudinal guide slot (322), and a double-headed screw (324) is movably connected to the center of the longitudinal guide slot (322). The guide slot seat 2 (327) is fixedly connected to the lower center of the center positioning housing (31). The upper side of the guide slot seat 2 (327) is provided with a longitudinal guide slot 2 (328), and a double-headed screw 2 (3210) is movably connected to the center of the longitudinal guide slot 2 (328). The synchronous drive device (325) is fixedly connected to the center of the rear side of the centrally positioned housing (31), and the transmission shafts on the upper and lower sides of the synchronous drive device (325) are respectively connected to the rear center of the double-headed screw one (324) and the double-headed screw two (3210). There are two sliders (323), and the two sliders (323) are movably connected to the front and rear positions of the longitudinal guide groove (322) respectively. The threaded holes in the center of the two sliders (323) are respectively connected to the external threads on both sides of the double-ended screw (324). There are two sliders (329). The two sliders (329) are movably connected to the front and rear positions of the longitudinal guide groove (328). The threaded holes in the center of the two sliders (329) are connected to the external threads on both sides of the double-headed screw (3210). A central roller (326) is movably connected between the upper side of the two sliders (329) and the lower side of the corresponding slider (323).

4. The bridge steel wire production positioning device according to claim 3, characterized in that: The specific structure of the synchronous drive device (325) includes a motor (3251), a transmission shaft (3252), a transmission pulley (3253), a synchronous belt (3254), and a transmission box (3255). There are two drive shafts (3252), which are movably connected to the upper and lower interiors of the transmission box (3255). A drive pulley (3253) is fixedly connected to the outer center of each of the two drive shafts (3252), and the drive pulleys (3253) are connected to each other by a synchronous belt (3254). One side of each of the two drive shafts (3252) is connected to the rear center of a double-headed screw (324) and a double-headed screw (3210). The motor (3251) is fixedly connected to the outside of the upper side of the transmission box (3255), and the output shaft of the motor (3251) is connected to the center of the other side of the upper transmission shaft (3252).

5. The bridge steel wire production positioning device according to claim 1, characterized in that: The lower card slot (434) and the upper card slot (435) are movably connected to two inner sides of the card roller 1 (4351), and the lower card slot (434) and the upper card slot (435) are movably connected to the center of the inner side of the card roller 2 (4352).

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