Straight-line wire drawing machine

Abstract

The present application relates to metal wire forming equipment technical field, especially provide straight type wire drawing machine, including frame and material turnover mechanism;The frame is provided with multistage drawing unit, each stage drawing unit includes the wire drawing drum, die box, wire drawing die, transmission gear train and tension mechanism installed on the frame;The die box is internally provided with lubricating powder, the wire drawing die is arranged on the feeding side based on the lubricating powder of the feeding end, the transmission gear train is arranged on the feeding and discharging side of the wire drawing die;The tension mechanism includes tension adjusting frame and tension adjusting wheel, the tension adjusting frame is arranged on the frame and is located between the wire drawing die and the wire drawing drum, the tension adjusting wheel is assembled in the tension adjusting frame, rotates synchronously with the lead tube and the material turnover roller, makes the lubricating powder in the die box lubricating cavity avoid hardening, the throwing effect produced when rotating makes the lubricating powder can enter the lead tube, and then reaches the purpose that the lubricating powder evenly covers the steel wire.

Description

Technical Field

[0001] This invention relates to the field of metal wire forming equipment technology, and particularly to a straight-line wire drawing machine. Background Technology

[0002] Straight-line wire drawing machines are mainly used for multi-stage continuous drawing and diameter reduction of metal wire rods, and are widely used in the production and processing of metal products such as steel wire, steel wire rope, and spring wire. Straight-line wire drawing machines rely on multi-stage drawing units to sequentially perform plastic deformation treatment on the wire, combined with a dry lubrication process to complete the wire drawing and forming operation. They feature high drawing efficiency, stable forming accuracy, and compatibility with continuous production lines. The die box, as the core lubrication station of the wire drawing machine, is mainly used to hold drawing lubricating powder. During the high-speed wire feeding and drawing process, it provides a solid lubricating film to the surface of the wire, thereby reducing the frictional resistance between the wire and the drawing die, ensuring the stable operation of continuous wire drawing, and is a key structure for ensuring the quality of the finished wire and extending the service life of the die.

[0003] Traditional straight-line wire drawing machines have a single function in their die box, lacking a mixing function. The wire drawing lubricating powder in the lubrication chamber accumulates statically for a long time, and the powder is passively adhered by the wire through the wire. This easily leads to the caking of the lubricating powder, resulting in low utilization rate of the lubricating powder. During continuous operation, the lubricating powder is prone to adhesion defects on the surface of the steel wire, which ultimately causes surface scratches during the wire transfer process and accelerated wear of the wire drawing die. It is difficult to ensure that the lubricating powder is evenly coated on the surface of the steel wire. Summary of the Invention

[0004] To address the aforementioned problems, the present invention provides a straight-line wire drawing machine, comprising a machine base and a material turning mechanism; the machine base is provided with a multi-stage drawing unit, each stage of the drawing unit comprising a drawing roller, a die box, a drawing die, a transmission wheel system, and a tension mechanism mounted on the machine base; The mold box is filled with lubricating powder. A wire drawing die is set on the feeding side of the lubricating powder at the feeding end. A transmission wheel system is set on the feeding and discharging side of the wire drawing die. The tension mechanism includes a tension adjustment frame and a tension adjustment wheel. The tension adjustment frame is set on the machine base and located between the wire drawing die and the wire drawing roller. The tension adjustment wheel is assembled on the tension adjustment frame. The material turning mechanism includes a guide tube, a turning roller, and a synchronous linkage structure. The guide tube and the turning roller are rotatably assembled inside the mold box via bearings. The guide tube has a lubrication channel along its axial direction, and the two ends of the lubrication channel are respectively connected to the feed end and the discharge end of the mold box. The turning roller is arranged parallel to the side of the guide tube. One end of the synchronous linkage structure is connected to the guide tube and the turning roller respectively for driving the guide tube and the turning roller to rotate synchronously. The other end of the synchronous linkage structure is connected to the transmission wheel system on the feed side to obtain power. The guide tube has several uniform spray holes arranged in a ring array. The inner end of each uniform spray hole is connected to the lubrication channel, and the outer end penetrates the tube wall of the guide tube. The tension adjusting wheel is connected to the transmission wheel system on the feeding side via a conveyor belt; the conveyor belt can elastically deform as the tension adjusting wheel tensions, transmitting the tension force to the transmission wheel system on the feeding side, ensuring effective transmission of the synchronous linkage structure by the transmission wheel system on the feeding side.

[0005] Preferably, the evenly spraying hole is a wedge-shaped hole that gradually narrows from the outer end to the inner end.

[0006] Preferably, at least two turning rollers are provided, and they are arranged symmetrically and parallel to each other on both sides of the guide tube.

[0007] Preferably, the surface of the turning roller is provided with a plurality of mixing rods.

[0008] Preferably, the transmission wheel system on the feeding side includes a fixed plate and a first clamping feeding wheel and a second clamping feeding wheel rotatably mounted on the fixed plate. The first clamping feeding wheel and the second clamping feeding wheel are arranged side by side on both sides of the feed port of the wire drawing die.

[0009] Preferably, the synchronous linkage structure includes a second conveyor belt, a drive shaft, a bearing housing, a bevel gear, a driven large gear, and a driven small gear; one end of the second conveyor belt is connected to the pulley at the top of the first clamping feeding wheel, and the other end is connected to the pulley at the top of the drive shaft; the drive shaft is rotatably mounted inside the mold box through the bearing housing, and a bevel gear is fixed at the end of the drive shaft; the driven large gear is mounted on one end of the guide tube, and the driven large gear is provided with a bevel tooth surface, which meshes with the bevel gear; there are two driven small gears, which mesh on both sides of the driven large gear respectively, and the two driven small gears are installed on the two turning rollers one-to-one.

[0010] Preferably, the mold box is divided into a mold mounting cavity and a lubrication cavity, the inner end of the wire drawing mold is located in the mold mounting cavity, and the wire guide tube and the turning roller are located in the lubrication cavity.

[0011] Preferably, the lubrication chamber has a discharge head on the discharge side, and the inlet and outlet holes of the discharge head, the lubrication channel of the wire guide tube, and the wire drawing forming hole of the wire drawing die are collinear.

[0012] Preferably, the bottom of the lubrication cavity is provided with a double-sided guide seat, which is located at the bottom of the guide tube. The cross-section of the double-sided guide seat is an isosceles triangle, so that each side of the double-sided guide seat forms an inclined guide surface that is inclined toward the two turning rollers. The inclined guide surface and the mixing rod on the same side form a recycling and re-stirring area.

[0013] The advantages of this invention compared to the prior art are: This invention incorporates a guide tube, a turning roller, and a synchronous linkage structure within the mold box, integrating the material mixing and lifting function into the mold box cavity. The mechanical linkage during wire conveying enables the guide tube and turning roller to rotate and lift the material, improving the utilization rate of the lubricating powder. Furthermore, as the guide tube and turning roller rotate synchronously, the lubricating powder in the mold box lubrication cavity is prevented from caking. The scattering effect generated during rotation allows the lubricating powder to enter the guide tube, thereby achieving the goal of uniformly coating the steel wire with lubricating powder.

[0014] The tension adjustment wheel and the feed-side drive wheel system are connected by a conveyor belt. The tension adjustment wheel swings with the changes in wire tension, and the conveyor belt adapts to the displacement to maintain the synchronous tension between the two. When the wire becomes slack and the tension decreases, it can still stably transmit rotational torque to ensure that the feed-side drive wheel system can continuously output power. This ensures the continuous operation of the synchronous linkage structure and the mixing and lifting components inside the die box, and ensures that the lubricating powder remains active throughout the drawing process.

[0015] The rotational power of the wire guide tube and the turning roller is derived from the wheel system movement corresponding to the wire tension of the wire drawing machine itself. No additional power components such as motors and reducers are required, which reduces the failure rate, facilitates the disassembly and maintenance of the die box, and is compatible with the equipment layout of multi-stage continuous drawing. Attached Figure Description

[0016] Figure 1 A schematic diagram of the combination of multi-stage drawing units of a straight-line wire drawing machine provided in an embodiment of the present invention; Figure 2 A first-view schematic diagram of a single drawing unit in a straight-line wire drawing machine provided for an embodiment of the present invention; Figure 3 A second-view schematic diagram of a single drawing unit in a straight-line wire drawing machine provided in an embodiment of the present invention; Figure 4 A top view of a single drawing unit in a straight-line wire drawing machine provided in an embodiment of the present invention; Figure 5 This is a partially cutaway schematic diagram of a single drawing unit in a straight-line wire drawing machine provided in an embodiment of the present invention. Figure 6 The single drawing unit in the straight-line wire drawing machine provided in the embodiments of the present invention consists of Figure 5 Enlarged view of part A in the image; Figure 7 A third-view schematic diagram of a single drawing unit in a straight-line wire drawing machine provided in an embodiment of the present invention; Figure 8 The single drawing unit in the straight-line wire drawing machine provided in the embodiments of the present invention consists of Figure 7 Enlarged view of part B in the image.

[0017] In the diagram: 1. Machine base; 2. Drawing roller; 3. Die box; 4. Drawing die; 5. Transmission gear system; 6. Tension mechanism; 7. Tension adjustment frame; 8. Tension adjustment wheel; 9. Guide tube; 10. Turning roller; 11. Synchronous linkage structure; 12. Sprinkling hole; 13. Double-sided guide seat; 14. Mixing rod; 15. Fixing plate; 16. First clamping feeding wheel; 17. Second clamping feeding wheel; 18. Second conveyor belt; 19. Drive shaft; 20. Bearing seat; 21. Bevel gear; 22. Driven large gear; 23. Driven small gear; 24. Die mounting cavity; 25. Lubrication cavity; 26. Discharge head; 27. Lubrication channel; 28. Inclined guide surface; 29. ​​Recycling and re-stirring area; 30. First conveyor belt. Detailed Implementation

[0018] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] In one implementation, such as Figures 1-8 As shown: This embodiment provides a straight-line wire drawing machine, including a base 1 and a material turning mechanism; the base 1 is provided with a multi-stage drawing unit, each stage of the drawing unit including a drawing roller 2, a die box 3, a drawing die 4, a transmission wheel system 5 and a tension mechanism 6 installed on the base 1; The feeding end of the mold box 3 is provided with a wire drawing die 4, and the feeding and discharging sides of the wire drawing die 4 are provided with a transmission wheel system 5; the tension mechanism 6 includes a tension adjustment frame 7 and a tension adjustment wheel 8. The tension adjustment frame 7 is located on the machine base 1 and between the wire drawing die 4 and the wire drawing roller 2, and the tension adjustment wheel 8 is assembled on the tension adjustment frame 7. The material turning mechanism includes a guide tube 9, a turning roller 10, and a synchronous linkage structure 11. The guide tube 9 and the turning roller 10 are rotatably assembled inside the mold box 3 via bearings. The guide tube 9 has a lubrication channel 27 along its axial direction, and the two ends of the lubrication channel 27 are respectively connected to the feeding end and the discharging end of the mold box 3. The turning roller 10 is arranged parallel to the side of the guide tube 9. One end of the synchronous linkage structure 11 is connected to the guide tube 9 and the turning roller 10 respectively for driving the guide tube 9 and the turning roller 10 to rotate synchronously. The other end of the synchronous linkage structure 11 is connected to the transmission wheel system 5 on the feeding side to obtain power. A number of uniform spraying holes 12 are arranged in a ring array on the conductor tube 9. The inner end of the uniform spraying hole 12 is connected to the lubrication channel 27, and the outer end penetrates the tube wall of the conductor tube 9. The tension adjusting wheel 8 is connected to the transmission wheel system 5 on the feeding side via a first conveyor belt 30. The first conveyor belt 30 can elastically deform with the tensioning action of the tension adjusting wheel 8, and transmit the tension force to the transmission wheel system 5 on the feeding side, ensuring the effective transmission of the synchronous linkage structure 11 by the transmission wheel system 5 on the feeding side.

[0020] In use, the steel wire is drawn through a multi-stage drawing unit, gradually reducing its diameter. Upon entering the die box 3, the wire first reaches the feed-side drive train 5, where it is clamped and fed into the die box 3. During this process, the wire is thinned by the drawing die 4, then passes through the guide tube 9. After being lubricated by the lubricating powder entering the guide tube 9, the wire is output from the discharge-side drive train 5. The actual tension of the steel wire during the drawing process is not constant and fluctuates with the drawing speed and the wire material, resulting in either a taut or slack state. The tension adjusting wheel 8 of the tension mechanism 6 oscillates in real time according to the wire tension. A transmission relationship is established between the tension adjusting wheel 8 and the feed-side drive train 5 via the first conveyor belt 30. The first conveyor belt 30 adapts to the oscillating displacement of the tension adjusting wheel 8 through its own elastic deformation, maintaining synchronous tension between the tension adjusting wheel 8 and the feed-side drive train 5. The rotational torque of the tension adjusting wheel 8 can be effectively transmitted to the transmission wheel system 5, ensuring that the transmission wheel system 5 can continuously output torque and provide stable power for the entire set of mixing and lifting components at the rear end, without power interruption due to the decrease in wire tension.

[0021] The torque output from the feed-side drive wheel system 5 is transmitted via the synchronous linkage structure 11 to synchronously link the rotation of the guide tube 9 and the turning roller 10. This invention directly integrates the mixing and lifting function inside the cavity of the mold box 3. The mold box 3 stores lubricating powder, which becomes active as the guide tube 9 and the turning roller 10 rotate, preventing caking. A lubrication channel 27 is opened inside the guide tube 9, and the lubricating powder flows into the lubrication channel 27 through the equalization holes 12. The lubrication channel 27 is the output channel for the wire. During the rotation of the guide tube 9 and the turning roller 10, the lubricating powder entering the lubrication channel 27 is dispersed onto the wire by centrifugal force. Furthermore, the centrifugal force generated by the rotation of the guide tube 9 causes the lubricating powder flowing into the lubrication channel 27 to be thrown outwards from the evenly distributed holes 12 arranged in a ring, dispersing it into the cavity of the mold box 3 in a rotating lifting manner.

[0022] The synchronously rotating tipping roller 10 agitates the lubricating powder inside the mold box 3 cavity, breaking up the static state of powder accumulation and bridging, and keeping the lubricating powder in the mold box 3 in an active flow state. This causes the lifted lubricating powder to continuously enter the lubrication channel 27 of the guide tube 9 through the evenly distributed spray holes 12. The steel wire travels axially through the lubrication channel 27, and the actively flowing lubricating powder actively coats the outer periphery of the steel wire, forming a complete solid lubricating film on the surface of the steel wire.

[0023] Compared to traditional lubricant powder coating methods, this method integrates the guiding tube 9, the turning roller 10, and the synchronous linkage structure 11 inside the mold box 3. This integrates the mixing and lifting function within the mold box 3 cavity, and the mechanical linkage between these components enables the lubricant powder to be rotated and lifted, eliminating the need for a separate drive unit and simplifying the overall equipment structure. The synchronous rotation of the guiding tube 9 and the turning roller 10 keeps the lubricant powder in the lubrication cavity actively flowing, preventing it from remaining statically piled up. The rotating and lifted lubricant powder can enter the guiding tube, uniformly coating the wire circumference with a layer of lubricant powder during wire conveying. This ensures an effective solid lubricant film is applied throughout the entire circumference of the wire, effectively improving uneven powder coating, increasing lubricant powder utilization, and reducing the risk of wire scratches and abnormal mold wear. After coating, the wire continues to be conveyed to the next drawing unit, repeating the above process. By setting a first conveyor belt 30 between the tension adjusting wheel 8 and the transmission wheel system 5 on the feeding side, an elastic transmission connection is established between the tension adjusting wheel 8 and the transmission wheel system 5 on the feeding side. The tension adjusting wheel 8 swings with the change of wire tension, and the first conveyor belt 30 adapts to the angle change of the tension adjusting wheel 8 when adjusting the tension, ensuring that the torque traction force of the transmission wheel system 5 on the feeding side is transmitted to the linkage structure 11. When the wire becomes slack and the tension decreases, the rotational torque can still be stably transmitted, ensuring that the transmission wheel system on the feeding side can continuously output power, thereby ensuring the continuous operation of the synchronous linkage structure 11 and the wire guide tube 9 and the turning roller 10 inside the mold box 3, avoiding the failure of the lifting and mixing mechanism due to the fluctuation of wire tension, and ensuring continuous and stable lubrication supply throughout the drawing process.

[0024] Specifically, the uniform spraying hole 12 is a wedge-shaped hole that gradually narrows from the outer end to the inner end.

[0025] When the lubricating powder flows from the lubrication channel 27 to the orifice, the wedge-shaped channel can play a role in concentrating and guiding the flow. The inner end of the wedge-shaped hole of the uniform spraying hole 12 is concentrated and gathered in the axial direction of the lubrication channel 27, and the lubricating powder flowing into the uniform spraying hole 12 in the radial range is concentrated and covered on the surface of the steel wire. That is, during the rotation of the guide tube 9, each uniform spraying hole 12 can maintain a stable and uniform speed to spray out the lubricating powder, ensuring that the amount of powder discharged from each hole is balanced, further improving the uniformity of powder spraying inside the mold box 3, and allowing the outer periphery of the steel wire to obtain a more uniform lubricating powder coating layer. With the centrifugal force generated by the rotation of the guide tube 9, the lubricating powder concentrated in the lubrication channel 27 can be quickly thrown out.

[0026] Specifically, at least two turning rollers 10 are provided, and they are arranged symmetrically and parallelly on both sides of the guide tube 9.

[0027] The synchronously rotating turning rollers 10 on both sides can agitate and disturb the lubricating powder on both sides of the guide tube 9, ensuring that the powder on both sides is turned up, preventing the powder from accumulating and clumping on one side of the lubrication chamber. The symmetrical arrangement allows the powder agitation range inside the mold box 3 to cover the entire space on both sides of the guide tube 9, reducing agitation blind spots; the lubricating powder stirred up on both sides can replenish the powder inside the guide tube 9 from both left and right directions, improving the powder coating efficiency around the steel wire.

[0028] Specifically, the surface of the turning roller 10 is provided with several mixing rods 14.

[0029] The mixing rod 14 directly contacts the drawing lubricating powder in the lubrication cavity of the mold box 3. During rotation, it continuously scoops and throws the powder in the cavity, disturbing and lifting the drawing lubricating powder that has settled and accumulated in the cavity, breaking up the compacted and clump-like state of the powder. The mixing rod 14 continuously agitates the powder, allowing more settled powder to participate in the circulation and lifting, avoiding a large amount of lubricating powder settling idle at the bottom of the cavity, and improving the overall utilization rate of the drawing lubricating powder.

[0030] Specifically, the transmission wheel system 5 on the feeding side includes a fixed plate 15 and a first clamping feeding wheel 16 and a second clamping feeding wheel 17 rotatably mounted on the fixed plate 15. The first clamping feeding wheel 16 and the second clamping feeding wheel 17 are arranged side by side on both sides of the feed port of the wire drawing die 4.

[0031] The steel wire is output from the drawing roller 2 of the upper drawing unit, guided and tensioned by the tension adjusting wheel 8, and then enters the first clamping feeding wheel 16 and the second clamping feeding wheel 17. Under the traction of the output end winding device, it enters the drawing die 4. After being thinned by the drawing die 4, it enters the lubrication area of ​​the die box 3 for powder lubrication and then enters the next drawing unit. The tension adjusting wheel 8 is connected to a connecting arm. The connecting arm is rotated and set at a reasonable position on the machine base 1 or the die box 3. A spring is set between the connecting arm and its fixed position to form the tensioning structure of the tension adjusting wheel 8. Since the steel wire is first guided by the tension adjusting wheel 8 after being output from the drawing roller 2, the tension of the tension adjusting wheel 8 can ensure that the traction force of the steel wire drives the tension adjusting wheel 8 to rotate continuously. This ensures that the wire provides torque to the first clamping feeding wheel 16 through the conveyor belt 30, and in turn, the first clamping feeding wheel 16 provides rotational power to the wire tube 9 and the turning roller 10 through the synchronous linkage structure 11.

[0032] Specifically, the synchronous linkage structure 11 includes a second conveyor belt 18, a drive shaft 19, a bearing seat 20, a bevel gear 21, a driven large gear 22, and a driven small gear 23. One end of the second conveyor belt 18 is connected to the pulley at the top of the first clamping feeding wheel 16, and the other end is connected to the pulley at the top of the drive shaft 19. The drive shaft 19 is rotatably mounted inside the mold box 3 through the bearing seat 20, and the bevel gear 21 is fixed at the end of the drive shaft 19. The driven large gear 22 is mounted on one end of the guide tube 9, and the driven large gear 22 is provided with a bevel tooth surface, which meshes with the bevel gear 21. There are two driven small gears 23, which mesh with the two sides of the driven large gear 22 respectively, and the two driven small gears 23 are installed one-to-one on the two turning rollers 10.

[0033] When the first clamping feed wheel 16 rotates, it drives the second conveyor belt 18 to rotate and oscillate via the eccentric shaft. The second conveyor belt 18 further drives the drive shaft 19 to rotate continuously. The drive shaft 19 is supported by the bearing seat 20 and rotates inside the mold box 3. The bearing seat 20 reduces the frictional resistance during the rotation of the drive shaft 19, ensuring smooth transmission. The bevel gear 21 at the end of the drive shaft 19 rotates together with it. The bevel gear 21 meshes with the bevel teeth of the driven large gear 22, reversing the rotational motion of the drive shaft 19 and driving the driven large gear 22 and the wire tube 9 assembled with it to rotate together. The driven large gear 22 simultaneously outputs torque to both sides, driving the driven small gears 23 meshing on both sides to rotate respectively. The two driven small gears 23 drive the corresponding turning rollers 10 to rotate synchronously. The entire synchronous linkage structure 11 completes one power reversal and diversion, distributing one power source of the first clamping feeding wheel 16 to the guide tube 9 and the two turning rollers 10 simultaneously, so that the guide tube 9 and the two turning rollers 10 keep rotating in tandem, realizing the synchronous operation of powder lifting and mixing; there is no need to set up multiple independent drives separately, ensuring the timing of the lifting and mixing operations is matched, and avoiding misalignment of operations.

[0034] Specifically, the mold box 3 is divided into a mold mounting cavity 24 and a lubrication cavity 25. The inner end of the wire drawing die 4 is located in the mold mounting cavity 24, while the guide tube 9 and the turning roller 10 are located in the lubrication cavity 25. The two cavities do not interfere with each other, have a reasonable structure, and do not interfere with each other during operation. The wire drawing die 4 is securely assembled inside the mold mounting cavity 24, which provides a dedicated installation and positioning space for the wire drawing die 4, ensuring the installation accuracy and structural stability of the wire drawing die 4, avoiding the influence of external structural disturbances on the die installation position, and ensuring the accuracy of wire drawing and forming. The guide tube 9, the turning roller 10, and the entire powder lifting and mixing structure are all centrally arranged inside the lubrication cavity 25, so that lubrication and powder lifting are completed in an independent cavity space. This partitioned layout completely separates the wire reduction forming drawing operation from the dynamic lubrication operation of the wire drawing lubricating powder, preventing the floating and raised lubricating powder in the lubrication cavity from entering the mold mounting cavity 24, preventing powder from accumulating around the die hole of the wire drawing die 4, and eliminating powder impurities that affect the wire drawing accuracy and scratch the wire surface.

[0035] Specifically, the discharge side of the lubrication chamber 25 is provided with a discharge head 26. The inlet and outlet holes of the discharge head 26, the lubrication channel 27 of the wire guide tube 9, and the wire drawing forming hole of the wire drawing die 4 are collinear. During the continuous drawing operation, the steel wire travels along a uniform straight trajectory, passing through the lubrication channel 27, the wire drawing die 4, and the discharge head 26 in sequence before being output to the first-level unit.

[0036] Specifically, the bottom of the lubrication chamber 25 is provided with a double-sided guide seat 13. The double-sided guide seat 13 is located at the bottom of the guide tube 9. The cross section of the double-sided guide seat 13 is an isosceles triangle, so that each side of the double-sided guide seat 13 forms an inclined guide surface 28 that is inclined towards the two turning rollers 10. The inclined guide surface 28 and the mixing rod 14 on the same side form a recycling and re-stirring area 29.

[0037] During the wire drawing process, excess wire drawing lubricating powder ejected from the evenly spraying hole 12 of the guide tube 9 and falling off the surface of the steel wire will freely settle to the bottom of the lubrication chamber 25. Powder falling on the surface of the double-sided guide seats 13 will automatically slide to both sides along the inclined guide surface 28, precisely converging within the working range of the turning roller 10 and the mixing rod 14. The inclined guide surface 28 and the mixing rod 14 on the same side work together to form an independent recycling and re-stirring area 29, where all the falling powder is collected. When the turning roller 10 drives the mixing rod 14 on its surface to rotate, it can shovel and scatter the settled powder gathered in the recycling and re-stirring area 29, raising the powder that was originally piled up at the bottom of the chamber and was easily left idle and wasted, allowing it to be redistributed inside the lubrication chamber 25 and participate in the steel wire coating and lubrication operation again, avoiding the accumulation of powder at the bottom of the chamber and its inability to be recycled.

[0038] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0039] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A straight-line wire drawing machine, characterized in that, It includes a base (1) and a turning mechanism; the base (1) is provided with a multi-stage drawing unit, each drawing unit including a drawing roller (2), a mold box (3), a drawing die (4), a transmission wheel system (5) and a tension mechanism (6) installed on the base (1). The mold box (3) is filled with lubricating powder. The feeding end is provided with a wire drawing mold (4) based on the feeding side of the lubricating powder. The feeding and discharging sides of the wire drawing mold (4) are provided with a transmission wheel system (5). The tension mechanism (6) includes a tension adjustment frame (7) and a tension adjustment wheel (8). The tension adjustment frame (7) is located on the machine base (1) and between the wire drawing mold (4) and the wire drawing roller (2). The tension adjustment wheel (8) is assembled on the tension adjustment frame (7). The material turning mechanism includes a guide tube (9), a turning roller (10), and a synchronous linkage structure (11). The guide tube (9) and the turning roller (10) are rotatably assembled inside the mold box (3) via bearings. The guide tube (9) has a lubrication channel (27) along its axial direction. The two ends of the lubrication channel (27) are respectively connected to the feed end and the discharge end of the mold box (3). The turning roller (10) is arranged parallel to the side of the guide tube (9). One end of the synchronous linkage structure (11) is connected to the guide tube (9) and the turning roller (10) for driving the guide tube (9) and the turning roller (10) to rotate synchronously. The other end of the synchronous linkage structure (11) is connected to the transmission wheel system (5) on the feed side to obtain power. The guide tube (9) has several uniform spray holes (12) arranged in a ring array. The inner end of the uniform spray hole (12) is connected to the lubrication channel (27), and the outer end penetrates the tube wall of the guide tube (9). The tension adjusting wheel (8) is connected to the transmission wheel system (5) on the feeding side by a first conveyor belt (30); the first conveyor belt (30) can undergo elastic deformation with the tension adjusting wheel (8) tensioning action, and transmit the tension force to the transmission wheel system (5) on the feeding side, ensuring the effective transmission of the transmission wheel system (5) on the feeding side to the synchronous linkage structure (11).

2. The straight-line wire drawing machine according to claim 1, characterized in that, The uniform spraying hole (12) is a wedge-shaped hole that gradually narrows from the outer end to the inner end.

3. The straight-line wire drawing machine according to claim 2, characterized in that, At least two turning rollers (10) are provided and are arranged symmetrically and parallelly on both sides of the guide tube (9).

4. The straight-line wire drawing machine according to claim 3, characterized in that, The surface of the turning roller (10) is provided with several mixing rods (14).

5. The straight-line wire drawing machine according to claim 4, characterized in that, The transmission wheel system (5) on the feeding side includes a fixed plate (15) and a first clamping feeding wheel (16) and a second clamping feeding wheel (17) rotatably mounted on the fixed plate (15). The first clamping feeding wheel (16) and the second clamping feeding wheel (17) are arranged side by side on both sides of the feed port of the wire drawing die (4).

6. The straight-line wire drawing machine according to claim 5, characterized in that, The synchronous linkage structure (11) includes a second conveyor belt (18), a drive shaft (19), a bearing seat (20), a bevel gear (21), a driven large gear (22), and a driven small gear (23). One end of the second conveyor belt (18) is connected to the pulley at the top of the first clamping feeding wheel (16), and the other end is connected to the pulley at the top of the drive shaft (19). The drive shaft (19) is rotatably mounted inside the mold box (3) through the bearing seat (20), and the end of the drive shaft (19) is fixed with a bevel gear (21). The driven large gear (22) is mounted on one end of the wire tube (9), and the driven large gear (22) is provided with a bevel tooth surface. The bevel gear (21) meshes with the bevel tooth surface. There are two driven small gears (23), and the two driven small gears (23) mesh on both sides of the driven large gear (22). The two driven small gears (23) are installed on the two turning rollers (10) one by one.

7. The straight-line wire drawing machine according to claim 6, characterized in that, The mold box (3) is divided into a mold mounting cavity (24) and a lubrication cavity (25). The inner end of the wire drawing mold (4) is located in the mold mounting cavity (24), and the wire tube (9) and the turning roller (10) are located in the lubrication cavity (25).

8. The straight-line wire drawing machine according to claim 7, characterized in that, The lubrication chamber (25) is provided with a discharge head (26) on the discharge side. The discharge head (26) has a discharge hole, the lubrication channel (27) of the wire guide tube (9) and the wire drawing forming hole of the wire drawing die (4) are collinear.

9. The straight-line wire drawing machine according to claim 8, characterized in that, The bottom of the lubrication cavity (25) is provided with a double-sided guide seat (13). The double-sided guide seat (13) is located at the bottom of the wire tube (9). The cross section of the double-sided guide seat (13) is an isosceles triangle, so that each side of the double-sided guide seat (13) forms an inclined guide surface (28) that is inclined toward the two turning rollers (10). The inclined guide surface (28) and the mixing rod (14) on the same side form a recycling and re-stirring area (29).

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