Special dry drawing die for galvanized bridge steel wire

Abstract

The invention provides a galvanized bridge steel wire dry type drawing special die, which relates to the field of bridge construction, and comprises a fixed seat, a driving mechanism, a mounting seat, a die mechanism, a drawing transmission mechanism and a drawing cavity, the device has the characteristics of being reasonable and simple in structure, low in production cost, convenient to install and complete in function, the rotating speed and torque can be accurately controlled through cooperation of a specific driving structure and a drawing transmission structure, stable power is provided for steel wire drawing, friction force between a steel wire and a drawing component is effectively reduced, the drawing operation efficiency and quality are improved, and the production cost is reduced. Meanwhile, the abrasion degree of a drawing part is reduced, and the service life is prolonged; double functions are achieved through the lubricating and cleaning mechanism, on one hand, lubricating media can be evenly smeared on the surface of the steel wire, and it is guaranteed that lubricating is sufficient during steel wire drawing; on the other hand, after the steel wire is drawn, lubricating media left on the surface of the steel wire can be forcefully cleaned, the surface of the steel wire is clean, follow-up traction operation is facilitated, and it is guaranteed that the whole drawing process is conducted smoothly.

Description

Technical Field

[0001] This invention relates to the field of bridge construction, and in particular to a special mold for dry drawing of galvanized bridge steel wire. Background Technology

[0002] In the field of bridge construction, galvanized bridge steel wire, due to its excellent corrosion resistance and mechanical strength, has become a core material for critical load-bearing components. Dry drawing is a crucial process in its production, determining the dimensional accuracy, surface quality, and mechanical properties of the steel wire. Currently, commonly used dry drawing equipment in the industry faces several technical bottlenecks in practical applications: Firstly, traditional drawing dies mostly employ a single fixed die structure, capable of completing only a single drawing operation. For fine steel wires requiring multi-stage drawing, multiple equipment transfers are necessary, resulting in cumbersome operation, low production efficiency, and potential dimensional accuracy fluctuations due to steel wire positioning deviations. Secondly, existing lubrication mechanisms are mostly static oil supply or powder spraying, making it difficult for lubricating powder to evenly cover the steel wire surface. This can lead to unstable friction coefficients between the steel wire and the die, increasing die wear, shortening service life, and potentially causing scratches, cracks, and other defects on the steel wire surface, affecting product quality. Meanwhile, incomplete cleaning of residual lubricating powder on the surface of the drawn steel wire leads to its adhesion to subsequent transmission components, affecting traction stability and requiring additional manpower for cleaning, thus increasing production costs. Furthermore, traditional drive mechanisms often use ordinary motors with low speed and torque control precision, making it impossible to accurately adjust the die speed according to the drawing process requirements, further exacerbating uneven lubrication and dimensional deviations. These problems collectively hinder the improvement of the production yield of galvanized bridge steel wire, failing to meet the demands of bridge construction for high-quality, high-efficiency steel wire production. Therefore, developing a specialized die integrating multi-stage drawing, uniform lubrication, efficient cleaning, and precise drive functions has become a critical issue urgently needing to be addressed in the industry. Summary of the Invention

[0003] The purpose of this invention is to provide a special dry drawing die for galvanized bridge steel wire to solve the above-mentioned problems. It solves the problems of traditional drawing equipment, such as difficulty in multi-stage drawing of fine steel wire, uneven coverage of lubricating powder, incomplete cleaning of lubricating powder on the surface of the steel wire after drawing, and inability of the drive mechanism to accurately adjust the die speed, resulting in low production efficiency, unstable steel wire quality, rapid die wear and high production cost.

[0004] To address the aforementioned problems, this invention provides a technical solution: a special mold for dry drawing of galvanized bridge steel wire, comprising a fixed base, a drive mechanism, a mounting base, a mold mechanism, a drawing transmission mechanism, and a drawing cavity; the fixed base has a drive mechanism located inside its lower side, and a drawing cavity located inside its upper side; there are several mounting bases arranged laterally and fixedly connected inside the drawing cavity, each mounting base having a mold mechanism inside it, with the lower input end of the mold mechanism connected to the output end of the drive mechanism; there are several drawing transmission mechanisms located to the right of their respective mold mechanisms, and all drawing transmission mechanisms are located inside the drawing cavity.

[0005] Preferably, the drive mechanism includes a motor, a transmission shaft, and drive gears; the motor is fixedly connected inside the lower left side of the fixed base, and the motor is a servo motor or a stepper motor; the transmission shaft is movably connected inside the fixed base, and the center of the left side of the transmission shaft is fixedly connected to the output shaft of the right side of the motor; several drive gears are fixedly connected to the outside of the transmission shaft, and the drive gears are respectively connected to the lower input end of the corresponding drive mechanism.

[0006] Preferably, the mold mechanism includes a mounting cavity, a transmission structure, a drawing die, a lubrication and cleaning mechanism, and a fixed seat; the mounting cavity is located inside the center of the mounting seat, the drawing die is movably connected inside the mounting cavity, and the fixed seat is fixedly connected inside the opening on the right side of the mounting cavity; the transmission structure is located inside the lower side of the mounting seat, the lower side of the transmission structure is connected to the output end of the drive mechanism, and the upper side of the transmission structure is fixedly connected to the outside of the drawing die; the upper side of the lubrication and cleaning mechanism is located inside the upper side of the mounting seat, and the lower side of the lubrication and cleaning mechanism is located on both sides of the drawing die.

[0007] Preferably, the transmission structure includes a driven gear, a second transmission shaft, a first transmission gear, and a second transmission gear; the second transmission shaft is movably connected to the interior of the lower side of the mounting base, the driven gear is fixedly connected to the lower end of the second transmission shaft, and the driven gear is connected to the output end of the drive mechanism; the first transmission gear is fixedly connected to the upper end of the second transmission shaft; the interior of the second transmission gear is fixedly connected to the exterior of the drawing die, and the second transmission gear is connected to the first transmission gear.

[0008] Preferably, the lubrication and cleaning mechanism includes a movable sleeve, an adding groove, a storage groove, a fixed cover, a filter screen, a high-pressure air pipe, a discharge pipe, and a cleaning rotating groove; the right side of the movable sleeve is fixedly connected to the left side of the drawing die, and several adding grooves are opened around the movable sleeve; the storage groove is located inside the upper side of the mounting cavity, and a fixed cover is provided at the upper opening of the storage groove, with a filter screen provided inside the opening on the right side of the fixed cover, and the lower left opening of the storage groove is connected to the interior of the upper adding groove; the cleaning rotating groove is located around the interior of the fixed base, and the upper right side of the cleaning rotating groove is connected to the inlet of the high-pressure air pipe, and the upper left outlet of the cleaning rotating groove is connected to the lower inlet of the discharge pipe.

[0009] Preferably, the upper outlet of the discharge pipe faces the lower side of the storage tank;

[0010] Preferably, the drawing transmission mechanism includes a second motor, a third transmission shaft, and a drawing transmission roller; the second motor is fixedly connected to the outside of the rear side of the fixed seat; the third transmission shaft is movably connected inside the drawing cavity, and the center of the rear side of the third transmission shaft is fixedly connected to the output shaft of the second motor; the drawing transmission roller is located inside the drawing cavity, and the center of the drawing transmission roller is fixedly connected to the outside of the third transmission shaft.

[0011] Preferably, the second motor is a servo motor or a stepper motor.

[0012] The beneficial effects of the present invention are: (1) The present invention has the characteristics of reasonable and simple structure, low production cost, convenient installation and complete functions. By adopting a specific drive structure and a pulling transmission structure, the rotation speed and torque can be accurately controlled, providing stable power for wire pulling, effectively reducing the friction between the wire and the pulling components, improving the efficiency and quality of the pulling operation, and at the same time reducing the wear of the pulling components and extending their service life.

[0013] (2) The present invention achieves dual functions through a lubrication and cleaning mechanism. On the one hand, it can evenly apply the lubricating medium to the surface of the steel wire to ensure sufficient lubrication during the steel wire drawing process. On the other hand, after the steel wire is drawn, it can powerfully clean the lubricating medium remaining on its surface to ensure that the steel wire surface is clean, which facilitates subsequent traction operations and ensures that the entire drawing process proceeds smoothly.

[0014] (3) By setting up multiple drawing transmission mechanisms and mold mechanisms, this invention can meet the requirements of multi-stage drawing of fine steel wires. The steel wires can be drawn step by step according to the process requirements, ensuring that the steel wires always maintain a good operating state during the multi-stage drawing process, efficiently completing the drawing task, and producing galvanized bridge steel wires that meet the quality standards.

[0015] (4) In the lubrication cleaning process, the lubricating medium that has been cleaned can be collected and reused, which not only avoids the waste of lubricating medium and reduces the cost of production consumables, but also keeps the working environment clean and reduces the impact of waste on the environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 for Figure 1 A sectional view.

[0018] Figure 3 This is a schematic diagram of the drive mechanism.

[0019] Figure 4 This is a schematic diagram of the mold mechanism.

[0020] Figure 5 This is a schematic diagram of the transmission structure.

[0021] Figure 6 This is a schematic diagram of the lubrication and cleaning mechanism.

[0022] Figure 7 This is a schematic diagram of the drawing transmission mechanism.

[0023] 1-Fixed base; 2-Drive mechanism; 3-Mounting base; 4-Die mechanism; 5-Pulling transmission mechanism; 6-Pulling cavity; 21-Motor 1; 22-Transmission shaft 1; 23-Driving gear; 41-Mounting cavity; 42-Transmission structure; 43-Pulling die; 44-Lubrication and cleaning mechanism; 45-Fixed base; 421-Driven gear; 422-Transmission shaft 2; 423-Transmission gear 1; 424-Transmission gear 2; 441-Moving sleeve; 442-Adding groove; 443-Storage groove; 444-Fixed cover; 445-Filter screen; 446-High-pressure air pipe; 447-Discharge pipe; 448-Cleaning rotating groove; 51-Motor 2; 52-Transmission shaft 3; 53-Pulling transmission roller. Detailed Implementation

[0024] like Figure 1 and Figure 2As shown, this specific embodiment adopts the following technical solution: a special mold for dry drawing of galvanized bridge steel wire, including a fixed base 1, a drive mechanism 2, a mounting base 3, a mold mechanism 4, a drawing transmission mechanism 5, and a drawing cavity 6; the fixed base 1 has a drive mechanism 2 inside its lower side, and a drawing cavity 6 inside its upper side; there are several mounting bases 3, which are arranged horizontally and fixedly connected inside the drawing cavity 6, and each mounting base 3 has a mold mechanism 4 inside it, with the lower input end of the mold mechanism 4 connected to the output end of the drive mechanism 2; there are several drawing transmission mechanisms 5, which are located to the right of the corresponding mold mechanism 4, and are all located inside the drawing cavity 6.

[0025] like Figure 3 As shown, the drive mechanism 2 includes a motor 21, a transmission shaft 22, and drive gears 23. The motor 21 is fixedly connected to the lower left side of the fixed base 1. The motor 21 is a servo motor or a stepper motor, which facilitates control of the motor 21 using existing automation technology. The transmission shaft 22 is movably connected to the inside of the fixed base 1. The center of the left side of the transmission shaft 22 is fixedly connected to the output shaft on the right side of the motor 21. Several drive gears 23 are fixedly connected to the outside of the transmission shaft 22, and the drive gears 23 are respectively connected to the lower input end of the corresponding drive mechanism 2.

[0026] like Figure 4 As shown, the mold mechanism 4 includes a mounting cavity 41, a transmission structure 42, a drawing die 43, a lubrication and cleaning mechanism 44, and a fixed seat 45. The mounting cavity 41 is located inside the center of the mounting seat 3, and the drawing die 43 is movably connected inside the mounting cavity 41. The fixed seat 45 is fixedly connected inside the opening on the right side of the mounting cavity 41. The transmission structure 42 is located inside the lower side of the mounting seat 3. The lower side of the transmission structure 42 is connected to the output end of the drive mechanism 2, and the upper side of the transmission structure 42 is fixedly connected to the outside of the drawing die 43. The upper side of the lubrication and cleaning mechanism 44 is located inside the upper side of the mounting seat 3, and the lower side of the lubrication and cleaning mechanism 44 is located on both sides of the drawing die 43.

[0027] like Figure 5 As shown, the transmission structure 42 includes a driven gear 421, a second transmission shaft 422, a first transmission gear 423, and a second transmission gear 424. The second transmission shaft 422 is movably connected to the lower interior of the mounting base 3. The driven gear 421 is fixedly connected to the lower end of the second transmission shaft 422, and the driven gear 421 is connected to the output end of the drive mechanism 2. The first transmission gear 423 is fixedly connected to the upper end of the second transmission shaft 422. The second transmission gear 424 is fixedly connected to the outside of the drawing die 43, and the second transmission gear 424 is connected to the first transmission gear 423.

[0028] like Figure 6 As shown, the lubrication and cleaning mechanism 44 includes a movable sleeve 441, an adding groove 442, a storage groove 443, a fixed cover 444, a filter screen 445, a high-pressure air pipe 446, a discharge pipe 447, and a cleaning rotating groove 448. The right side of the movable sleeve 441 is fixedly connected to the left side of the drawing die 43, and several adding grooves 442 are opened around the movable sleeve 441. The storage groove 443 is located inside the upper side of the mounting cavity 41. A fixed cover 444 is provided at the upper opening of the storage groove 443, and a filter screen 445 is provided inside the right opening of the fixed cover 444. The lower left opening of the storage groove 443 is connected to the interior of the upper adding groove 442. The cleaning rotating groove 448 is located around the interior of the fixed base 45. The upper right side of the cleaning rotating groove 448 is connected to the inlet of the high-pressure air pipe 446, and the upper left outlet of the cleaning rotating groove 448 is connected to the lower inlet of the discharge pipe 447.

[0029] The upper outlet of the discharge pipe 447 faces the lower side of the storage tank 443;

[0030] like Figure 7 As shown, the drawing transmission mechanism 5 includes a second motor 51, a third transmission shaft 52, and a drawing transmission roller 53; the second motor 51 is fixedly connected to the outside of the rear side of the fixed base 1; the third transmission shaft 52 is movably connected inside the drawing cavity 6, and the center of the rear side of the third transmission shaft 52 is fixedly connected to the output shaft of the second motor 51; the drawing transmission roller 53 is located inside the drawing cavity 6, and the center of the drawing transmission roller 53 is fixedly connected to the outside of the third transmission shaft 52.

[0031] The second motor 51 is a servo motor or a stepper motor, which makes it easy to control the second motor 51 using existing automation technology.

[0032] The invention is used in the following ways: It has a reasonable and simple structure, low production cost, convenient installation, and complete functions. When dry drawing operations are required on galvanized bridge steel wires, the operator first starts the drawing transmission mechanism 5. Since motor 2 51 is a servo motor or stepper motor, it can accurately control the speed and torque. Motor 2 51 starts working, and its output shaft drives transmission shaft 3 52 to rotate stably inside the drawing cavity 6. This causes the drawing transmission roller 53, which is fixed outside transmission shaft 3 52, to rotate synchronously. The drawing transmission roller 53 is in close contact with the steel wire, and its friction pulls the steel wire to move inside the mold mechanism 4. On the mold mechanism 4 side, motor 1 21 in the drive mechanism 2 serves as the power source for the drive mechanism 2 and is fixed to the lower left of the fixed base 1. Inside the side, there is also a servo motor or stepper motor. After it starts running, the output shaft on the right side drives the transmission shaft 22 to rotate inside the fixed base 1. Several drive gears 23 fixed outside the transmission shaft 22 rotate accordingly. The drive gears 23 mesh with the driven gear 421 on the lower side of the mold mechanism 4, thereby transmitting power to the mold mechanism 4. In the mold mechanism 4, the driven gear 421 drives the transmission shaft 422 to rotate. The transmission gears 423 and 424 on the upper end of the transmission shaft 422 cooperate with each other, thereby driving the drawing die 43 to start rotating. As the drawing transmission roller 53 continuously pulls the steel wire, the steel wire enters the drawing die 43. Before the steel wire enters the drawing die 43, the lubrication and cleaning mechanism 44 begins to play a lubrication role, storing... The groove 443 stores lubricating powder, which is then evenly applied to the movable sleeve 441 through the addition groove 442, which is connected to the lower left opening of the storage groove 443. As the drawing die 43 rotates under the drive of the drive mechanism 2, the movable sleeve 441 also rotates synchronously. This ensures that the steel wire is evenly coated with lubricating powder when it enters the drawing die 43, effectively reducing the friction between the steel wire and the drawing die 43, improving the efficiency and quality of the drawing operation, and also reducing the wear of the drawing die 43 and extending its service life. After the steel wire completes the drawing operation and exits from the right side of the drawing die 43, the lubrication cleaning mechanism 44 takes on the task of cleaning the lubricating powder from the surface of the steel wire. High-pressure air is introduced into the cleaning rotating groove 448 via the high-pressure air pipe 446. High-pressure gas forms a high-speed airflow within the cleaning rotary groove 448, powerfully sweeping away the residual lubricating powder on the surface of the steel wire emerging from the drawing die 43. The swept-off lubricating powder is collected through the discharge pipe 447 and discharged to the lower side of the storage tank 443 for reuse. This avoids waste of lubricating powder and maintains a clean working environment. The cleaned steel wire surface is relatively clean, facilitating subsequent winding and traction by the drawing transmission mechanism 5, ensuring the smooth operation of the entire drawing process. Furthermore, the multiple drawing transmission mechanisms 5 and die mechanism 4 in the equipment can meet the needs of multi-stage drawing operations for fine steel wires. In actual production, for some fine steel wires that require multiple drawing operations to achieve the target diameter and performance requirements...The steel wire can be gradually drawn through multiple die mechanisms 4. Each die mechanism 4 performs a corresponding degree of drawing on the steel wire according to process requirements. Simultaneously, each drawing transmission mechanism 5 provides stable power support for the movement of the steel wire in its corresponding position, ensuring that the steel wire maintains good operating condition throughout the multi-stage drawing process, efficiently completing the drawing task, and producing galvanized bridge steel wire that meets quality standards.

[0033] In the description of this 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 this 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 limiting this invention.

[0034] 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.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

[0036] The control method of this invention is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

Claims

1. A special die for dry drawing of galvanized bridge steel wire, characterized in that: It includes a fixed base (1), a drive mechanism (2), a mounting base (3), a mold mechanism (4), a drawing transmission mechanism (5), and a drawing cavity (6); The fixed base (1) has a drive mechanism (2) inside its lower side and a pull-out cavity (6) inside its upper side. There are several mounting seats (3), which are arranged horizontally and are all fixedly connected inside the drawing cavity (6). Each of the mounting seats (3) is provided with a mold mechanism (4), and the lower input end of the mold mechanism (4) is connected to the output end of the drive mechanism (2). There are several drawing transmission mechanisms (5), and each of the several drawing transmission mechanisms (5) is located on the right side of the corresponding mold mechanism (4). All of the several drawing transmission mechanisms (5) are located inside the drawing cavity (6).

2. The special die for dry drawing of galvanized bridge steel wire according to claim 1, characterized in that: The drive mechanism (2) includes a motor (21), a transmission shaft (22), and a drive gear (23). The motor (21) is fixedly connected to the lower left side of the fixed base (1), and the motor (21) is a servo motor or a stepper motor; The drive shaft (22) is movably connected inside the fixed base (1). The center of the left side of the drive shaft (22) is fixedly connected to the output shaft on the right side of the motor (21). Several drive gears (23) are fixedly connected to the outside of the drive shaft (22), and the drive gears (23) are respectively connected to the lower input end of the corresponding drive mechanism (2).

3. The special die for dry drawing of galvanized bridge steel wire according to claim 1, characterized in that: The mold mechanism (4) includes an installation cavity (41), a transmission structure (42), a drawing die (43), a lubrication and cleaning mechanism (44), and a fixed seat (45). The mounting cavity (41) is located inside the center of the mounting base (3). A drawing die (43) is movably connected inside the mounting cavity (41). A fixing base (45) is fixedly connected inside the opening on the right side of the mounting cavity (41). The transmission structure (42) is located inside the lower side of the mounting base (3). The lower side of the transmission structure (42) is connected to the output end of the drive mechanism (2), and the upper side of the transmission structure (42) is fixedly connected to the outside of the drawing die (43). The upper side of the lubrication cleaning mechanism (44) is located inside the upper side of the mounting base (3), and the lower side of the lubrication cleaning mechanism (44) is located on both sides of the drawing die (43).

4. The special die for dry drawing of galvanized bridge steel wire according to claim 3, characterized in that: The transmission structure (42) includes a driven gear (421), a second transmission shaft (422), a first transmission gear (423), and a second transmission gear (424). The second transmission shaft (422) is movably connected to the lower side of the mounting base (3). A driven gear (421) is fixedly connected to the lower end of the second transmission shaft (422), and the driven gear (421) is connected to the output end of the drive mechanism (2). A first transmission gear (423) is fixedly connected to the upper end of the second transmission shaft (422). The transmission gear two (424) is fixedly connected to the outside of the drawing die (43), and the transmission gear two (424) is connected to the transmission gear one (423).

5. The special die for dry drawing of galvanized bridge steel wire according to claim 3, characterized in that: The lubrication and cleaning mechanism (44) includes a movable sleeve (441), an adding groove (442), a storage groove (443), a fixed cover (444), a filter screen (445), a high-pressure air pipe (446), a discharge pipe (447), and a cleaning rotating groove (448). The right side of the movable sleeve (441) is fixedly connected to the left side of the drawing die (43), and several adding slots (442) are provided around the movable sleeve (441). The storage tank (443) is located inside the upper side of the mounting cavity (41). A fixed cover (444) is provided at the upper opening of the storage tank (443), and a filter screen (445) is provided inside the right opening of the fixed cover (444). The lower left opening of the storage tank (443) is connected to the inside of the upper adding tank (442). The cleaning rotating groove (448) is located around the inside of the fixed base (45). The upper right side of the cleaning rotating groove (448) is connected to the inlet of the high-pressure air pipe (446), and the upper left outlet of the cleaning rotating groove (448) is connected to the lower inlet of the discharge pipe (447).

6. The special die for dry drawing of galvanized bridge steel wire according to claim 5, characterized in that: The upper outlet of the discharge pipe (447) faces the lower side of the storage tank (443).

7. The special die for dry drawing of galvanized bridge steel wire according to claim 1, characterized in that: The drawing transmission mechanism (5) includes a second motor (51), a third transmission shaft (52), and a drawing transmission roller (53). The second motor (51) is fixedly connected to the outside of the rear side of the fixed base (1); The transmission shaft three (52) is movably connected inside the drawing cavity (6), and the rear center of the transmission shaft three (52) is fixedly connected to the output shaft of the motor two (51); The drawing drive roller (53) is located inside the drawing cavity (6), and the center of the drawing drive roller (53) is fixedly connected to the outside of the drive shaft (52).

8. The special die for dry drawing of galvanized bridge steel wire according to claim 7, characterized in that: The second motor (51) is a servo motor or a stepper motor.

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