Tension-adjustable metal wire drawing machine

Abstract

The present application relates to the field of wire drawing machine, disclose a kind of tension-adjustable metal wire drawing machine, including frame, the four corners of the lower surface of the frame is supported by support leg, the middle of the left and right side surface of the frame is provided with material groove, the rear edge of the left and right side of the frame is provided with the first through slot of communicating material groove, the left and right sides of the lower inner wall of the frame are provided with wire guide structure, the lower inner wall and the upper inner wall of the frame are provided with tension structure, the left and right sides of the frame are provided with rotary placement structure;The rear inner wall of the frame is provided with wire feeding structure, once the metal wire is placed on the clamping structure, through wire feeding structure and guide structure, drive the metal wire on clamping structure automatically around two groups of wire guide roller and tension cylinder in frame, it is more labor-saving, convenient to operate, and guide structure in guiding process, cooperate with driving structure, can automatically drive clamping structure to automatically loosen metal wire, simple structure, practical function.

Description

Technical Field

[0001] This invention relates to the technical field of wire drawing machines, and in particular to a metal wire drawing machine with adjustable tension. Background Technology

[0002] Metal wire drawing machines are mechanical equipment used to process metal materials into wires, ropes or tubular products. They are widely used in industries such as machinery manufacturing, hardware processing, and wire and cable manufacturing. In the existing metal wire drawing machine, the arrangement of sliders, screws and drive components allows the drive component to be activated to drive two screws to rotate, so that the two screws drive two sliders to move in opposite directions. This allows the distance between the two wire drawing rollers to be adjusted, so that the tension of the wire drawing rollers on the wire can be freely adjusted, so as to process wires of different materials and improve the processing quality. However, in actual processing, it is necessary to manually wind one end of the metal wire around two sets of guide rollers and drawing rollers within the frame. This makes the operation quite laborious, and the support also increases the difficulty of manual wire winding. Therefore, there are areas for improvement. Summary of the Invention

[0003] To address the problems mentioned in the background section, the present invention provides a metal wire drawing machine with adjustable tension.

[0004] The present invention provides a tension-adjustable metal wire drawing machine using the following technical solution: An adjustable tension metal wire drawing machine includes a frame, with support legs at the four corners of the frame. Material troughs are provided in the middle of both the left and right sides of the frame. First through slots connecting the material troughs are provided along the rear edges of both the left and right sides of the frame. Wire guiding structures are provided on both the left and right sides of the lower inner wall of the frame. Tensioning structures are provided on both the lower and upper inner walls of the frame. Rotational placement structures are provided on both the left and right sides of the frame. A wire feeding structure is provided on the rear inner wall of the frame. The wire feeding structure includes two side plates connected to the left and right sides of the rear side of the frame. The two side plates are fastened to a mounting plate by bolts on the side away from each other. A threaded rod is rotatably connected between the two mounting plates. A first motor is mounted on one of the mounting plates. One end of the output shaft of the first motor is connected to the threaded rod. A movable block is sleeved on the threaded rod. The movable block has a threaded groove for the threaded rod to pass through. A vertical plate is connected below the movable block. A first vertical groove is opened on the vertical plate. A first lifting block is slidably arranged in the first vertical groove. A guide structure is provided between the first lifting block and the inner wall of the rear side of the frame. A clamping structure is provided on the first lifting block. The guiding structure includes a fixed insert rod passing through the middle of the first lifting block. A first horizontal groove is provided on the inner wall of the rear side of the frame. The rear end of the insert rod is slidably disposed in the first horizontal groove. A first bypass groove communicating with the first horizontal groove is provided on the inner wall of the rear side of the frame. A second bypass groove communicating with the first bypass groove is provided on the inner wall of the rear side of the frame. A third bypass groove communicating with the second bypass groove is provided on the inner wall of the rear side of the frame. A fourth bypass groove communicating with the third bypass groove is provided on the inner wall of the rear side of the frame. A second horizontal groove communicating with the fourth bypass groove is provided on the side plate on the right side. The second horizontal groove and the first horizontal groove are at the same horizontal height.

[0005] Preferably, the clamping structure includes sliding grooves on both sides of the front of the first lifting block, with sliders slidably disposed in the sliding grooves, each slider being connected to a clamping strip, and a driving structure being provided between the slider and the vertical plate.

[0006] Preferably, the driving structure includes driving grooves formed on both sides of the front of the vertical plate, and an L-shaped rod is connected to the slider, with one end of the L-shaped rod slidably disposed in the driving groove.

[0007] Preferably, the wire-leading structure includes a first fixing plate fastened to the left and right sides of the inner wall of the frame by bolts, and a wire-leading roller is rotatably mounted on the top of the first fixing plate.

[0008] Preferably, the tension structure includes two second fixing plates fastened to the inner walls of the upper and lower sides of the frame by bolts. The second fixing plates have a second vertical groove, and a second lifting block is slidably arranged in the second vertical groove. A lifting rod is connected to the second lifting block, and a tension cylinder is rotatably sleeved on the lifting rod. An adjustment structure is provided on the frame.

[0009] Preferably, the adjustment structure includes a bidirectional screw rotatably disposed within the frame, a rotating wheel disposed at the bottom end of the bidirectional screw rotatably extending out of the frame, two lifting sleeves sleeved on the bidirectional screw, teeth provided on the inner wall of the lifting sleeves, a connecting strip connected to the lifting sleeves, and one end of the connecting strip connected to the second lifting block.

[0010] Preferably, the rotating placement structure includes a third fixing plate fastened to the left and right sides of the frame near the material trough by bolts. Rotary disks are rotatably mounted on both the third fixing plate and the side plates. A rotating rod is provided between the two rotating disks through a flip positioning structure. A wire drawing roller and a wire cylinder are respectively sleeved on the two rotating rods. A second motor is installed on the third fixing plate on the right side. One end of the output shaft of the second motor is connected to one of the rotating disks.

[0011] Preferably, the flipping positioning structure includes a U-shaped seat mounted on one of the rotating disks, a flipping shaft rotating through the U-shaped seat, one end of the rotating rod being fixedly sleeved on the flipping shaft, a fixed seat mounted on the other rotating disk, the other end of the rotating rod being inserted into the fixed seat, a positioning rod passing through the fixed seat, a fixing block being provided at one end of the positioning rod, a pressing block being provided at the other end of the positioning rod, the pressing block being frustoconical in shape, a thread being provided on the positioning rod, a nut being tightened on the end of the positioning rod near the pressing block, and a pressure-bearing structure being provided inside the rotating rod.

[0012] Preferably, the pressure-bearing structure includes a first inner groove formed in the middle of the rotating rod, a second inner groove formed near the fixed seat end of the rotating rod, a pressing rod movably passing through the wall of the first inner groove, a pressing seat in the shape of a frustum installed at one end of the pressing rod, a plurality of second through grooves formed in the wall of the first inner groove, a pressing block movably inserted into each second through groove, a fixing ring fixedly fitted on the pressing rod, a spring fitted on the pressing rod, the two ends of the spring being respectively connected to the fixing ring and the inner wall of one end of the first inner groove, a pressure-bearing rod connected at one end of the pressing rod inserted into the second inner groove, a third through groove formed on the pressure-bearing rod, a through rod rotatably passing through the third through groove, a pressure-bearing wheel fixedly fitted in the middle of the through rod, the pressure-bearing wheel being pressed against the positioning rod.

[0013] In summary, the present invention has the following beneficial technical effects: 1. The wire feeding structure, guiding structure, clamping structure, and driving structure of this invention allow the metal wire to be automatically driven by the wire feeding structure and guiding structure to pass through two sets of wire drawing rollers and tension cylinders within the frame once the metal wire is placed on the clamping structure. This makes the operation more labor-saving and convenient. In addition, the guiding structure, in conjunction with the driving structure, can automatically drive the clamping structure to automatically release the metal wire during the guiding process. The structure is simple and the function is practical. 2. This invention, by setting up a tension structure and an adjustment structure, allows for simultaneous adjustment of the horizontal height of two tension cylinders, thereby enabling flexible adjustment of the tension of the metal wire according to actual needs; 3. This invention features a rotating placement structure, a flipping positioning structure, and a pressure-bearing clamping structure. The rotating placement structure facilitates the placement of the drawing roller and the yarn cylinder. The flipping positioning structure allows for easy replacement of the drawing roller or yarn cylinder by rotating the rod. Furthermore, the pressure-bearing clamping structure automatically clamps the roller when it is lowered and automatically releases when it is raised, making replacement convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a tension-adjustable metal wire drawing machine according to an embodiment of the present invention; Figure 2This is a schematic diagram of the internal structure of the frame in an embodiment of the present invention; Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A; Figure 4 This is a schematic diagram of the structure at the rear inner wall of the frame in an embodiment of the present invention; Figure 5 This is an embodiment of the present invention. Figure 4 Enlarged view of the structure at point B; Figure 6 This is a schematic diagram of the rotating placement structure in an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the rotating rod in an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 7 Enlarged view of the structure at point C; Figure 9 This is an embodiment of the present invention. Figure 7 Enlarged view of the structure at point D.

[0015] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Support leg; 3. Side plate; 4. Mounting plate; 5. First motor; 6. Threaded rod; 7. Moving block; 8. Vertical plate; 9. First vertical slot; 10. First lifting block; 11. Insert rod; 12. First horizontal slot; 13. First bypass slot; 14. Second bypass slot; 15. Third bypass slot; 16. Fourth bypass groove; 17. Second transverse groove; 18. Sliding groove; 19. Sliding block; 20. Clamping bar; 21. L-shaped rod; 22. Driving groove; 23. Material trough; 24. First through groove; 25. First fixing plate; 26. Wire guide roller; 27. Second fixing plate; 28. Second vertical groove; 29. ​​Second lifting block; 30. Lifting rod; 31. Tension cylinder; 32. Bidirectional screw; 33. Rotary wheel; 34. Lifting sleeve; 35. Connecting bar; 36. U-shaped seat; 3 7. Rotating rod; 38. Clamping block; 39. Fixed seat; 40. Flipping shaft; 41. Positioning rod; 42. Pressing block; 43. Nut; 44. Second through groove; 45. Pressing seat; 46. Pressing rod; 47. First inner groove; 48. Fixing ring; 49. Spring; 50. Second inner groove; 51. Pressure rod; 52. Third through groove; 53. Through rod; 54. Pressure wheel; 55. Third fixed plate; 56. Rotating disk; 57. Second motor; 58. Fixed block. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0017] Reference Figures 1-9This invention discloses a tension-adjustable metal wire drawing machine, including a frame 1. The four corners of the frame 1 are supported by support legs 2. Material grooves 23 are provided in the middle of the left and right sides of the frame 1. First through grooves 24 connecting the material grooves 23 are provided along the rear edge of the left and right sides of the frame 1. Wire guiding structures are provided on the left and right sides of the lower inner wall of the frame 1. Tension structures are provided on the lower inner wall and upper inner wall of the frame 1. Rotation placement structures are provided on the left and right sides of the frame 1. Wire feeding structures are provided on the rear inner wall of the frame 1. The wire feeding structure includes two side plates 3 connected to the left and right sides of the rear side of the frame 1. The two side plates 3 are fastened to the mounting plate 4 by bolts on the upper side of the opposite side. The two mounting plates 4 are rotatably connected to a threaded rod 6. A first motor 5 is mounted on one of the mounting plates 4. One end of the output shaft of the first motor 5 is connected to the threaded rod 6. A moving block 7 is sleeved on the threaded rod 6. The moving block 7 has a threaded groove for the threaded rod 6 to pass through. A vertical plate 8 is connected below the moving block 7. A first vertical groove 9 is opened on the vertical plate 8. A first lifting block 10 is slidably arranged in the first vertical groove 9. A guide structure is provided between the first lifting block 10 and the inner wall of the rear side of the frame 1. A clamping structure is provided on the first lifting block 10. The guiding structure includes a fixed insert rod 11 that passes through the middle of the first lifting block 10. A first horizontal groove 12 is provided on the inner wall of the rear side of the frame 1. The rear end of the insert rod 11 is slidably disposed in the first horizontal groove 12. A first bypass groove 13 is provided on the inner wall of the rear side of the frame 1 that connects to the first horizontal groove 12. A second bypass groove 14 is provided on the inner wall of the rear side of the frame 1 that connects to the first bypass groove 13. A third bypass groove 15 is provided on the inner wall of the rear side of the frame 1 that connects to the second bypass groove 14. A fourth bypass groove 16 is provided on the inner wall of the rear side of the frame 1 that connects to the third bypass groove 15. A second horizontal groove 17 is provided on the side plate 3 on the right side that connects to the fourth bypass groove 16. The second horizontal groove 17 and the first horizontal groove 12 are at the same horizontal level. The clamping structure includes slide grooves 18 on both sides of the front of the first lifting block 10, slide blocks 19 are slidably arranged in the slide grooves 18, each slide block 19 is connected to a clamping strip 20, and a driving structure is provided between the slide block 19 and the vertical plate 8. The driving structure includes driving grooves 22 on both sides of the front of the vertical plate 8. An L-shaped rod 21 is connected to the slider 19. One end of the L-shaped rod 21 is slidably disposed in the driving groove 22. Before wire drawing, one end of the metal wire to be drawn on the wire spool is first passed through the two clamping bars 20. Then, the first motor 5 on the mounting plate 4 is started to drive the threaded rod 6 to rotate. The moving block 7 moves on the rotating threaded rod 6, driving one end of the insertion rod 11 to slide in the first horizontal groove 12. When the moving block 7 drives the insertion rod 11 to slide into the first bypass groove 13, it drives the first lifting block 10 to slide downward in the first vertical groove 9, and drives one end of the L-shaped rod 21 to slide in the driving groove 22, pushing the two blocks The slider 19 moves towards the center, thereby causing the two clamping bars 20 to automatically clamp one end of the metal wire. As the moving block 7 moves, automatic wire feeding can be performed. When the moving block 7 drives one end of the insertion rod 11 to slide in the first bypass groove 13, the second bypass groove 14, the third bypass groove 15, and the fourth bypass groove 16, the metal wire is automatically bypassed by the wire guiding structure and the tension structure, and the metal wire is sent to the drawing roller. Then, the moving block 7 drives one end of the insertion rod 11 to slide into the second transverse groove 17, which drives the first lifting block 10 and the L-shaped rod 21 to move upward and reset as a whole. This automatically releases the metal wire, making it convenient to wind one end of the metal wire onto the drawing roller for wire drawing.

[0018] See Figure 1 and Figure 2 The wire-drawing structure includes a first fixing plate 25 fastened to the left and right sides of the lower inner wall of the frame 1 by bolts. A wire-drawing roller 26 is rotatably set on the top of the first fixing plate 25. When the metal wire passes over the two sets of wire-drawing rollers 26, it can play the role of wire drawing during the wire drawing process. The tension structure includes two second fixing plates 27 fastened to the inner walls of the upper and lower sides of the frame 1 by bolts. A second vertical groove 28 is opened on the second fixing plate 27. A second lifting block 29 is slidably arranged in the second vertical groove 28. A lifting rod 30 is connected to the second lifting block 29. A tension cylinder 31 is rotatably sleeved on the lifting rod 30. An adjustment structure is provided on the frame 1. The adjustment structure includes a bidirectional screw 32 rotatably mounted inside the frame 1. The upper and lower sections of the bidirectional screw 32 have opposite thread directions. A rotating wheel 33 is mounted on the bottom end of the bidirectional screw 32 that rotates through the frame 1. Two lifting sleeves 34 are fitted onto the bidirectional screw 32. The inner wall of the lifting sleeves 34 is provided with teeth. A connecting strip 35 is connected to the lifting sleeves 34. One end of the connecting strip 35 is connected to the second lifting block 29. Before wire drawing, the bidirectional screw 32 can be rotated by the rotating wheel 33 according to the actual needs. The two lifting sleeves 34 move synchronously in opposite directions on the bidirectional screw 32 to adjust the distance between the two tension cylinders 31, thereby realizing the flexible tension adjustment function.

[0019] See Figures 6-9The rotating placement structure includes a third fixing plate 55 fastened to the left and right sides of the frame 1 near the material trough 23 by bolts. Rotary disks 56 are rotatably mounted on both the third fixing plate 55 and the side plate 3. A rotating rod 37 is provided between the two rotating disks 56 through a flip positioning structure. A wire drawing roller and a wire cylinder are respectively sleeved on the two rotating rods 37. A second motor 57 is installed on the third fixing plate 55 on the right side. One end of the output shaft of the second motor 57 is connected to one of the rotating disks 56. The flip positioning structure includes a U-shaped seat 36 mounted on one of the rotating disks 56, through which a flip shaft 40 rotates. One end of a rotating rod 37 is fixedly sleeved on the flip shaft 40. A fixed seat 39 is mounted on the other rotating disk 56, and the other end of the rotating rod 37 is inserted into the fixed seat 39. A positioning rod 41 passes through the fixed seat 39. A fixing block 58 is provided at one end of the positioning rod 41, and a pressing block 42 is provided at the other end of the positioning rod 41. The pressing block 42 is shaped like a frustum. The positioning rod 41 is threaded. A nut 43 is tightened on the end of the positioning rod 41 near the pressing block 42. A pressure-bearing structure is provided inside the rotating rod 37. The pressure-bearing structure includes a first inner groove 47 formed in the middle of the rotating rod 37, a second inner groove 50 formed near the fixed seat 39 in the rotating rod 37, a pressing rod 46 moving through the wall of the first inner groove 47, a frustum-shaped pressing seat 45 installed at one end of the pressing rod 46, multiple second through grooves 44 formed in the wall of the first inner groove 47, a pressing block 38 being movably inserted into each second through groove 44, a fixing ring 48 fixedly fitted on the pressing rod 46, a spring 49 fitted on the pressing rod 46, the two ends of the spring 49 being connected to the fixing ring 48 and the inner wall of one end of the first inner groove 47 respectively, one end of the pressing rod 46 inserted into the second inner groove 50 being connected to a pressure rod 51, a third through groove 52 formed on the pressure rod 51, a through rod 53 rotating through the third through groove 52, a pressure wheel 54 fixedly fitted in the middle of the through rod 53, the pressure wheel 54 being pressed against the positioning rod 41, the rotating rod 37... When the rotating shaft 40 rotates, the spring force of the spring 49 pushes the pressing seat 45 at one end of the pressing rod 46 to move away from the U-shaped seat 36 between the pressing blocks 38, so that the pressing blocks 38 are in a loose state on the rotating rod 37, which facilitates the replacement of the take-up roller or yarn bobbin on the rotating rod 37. After replacement, one end of the rotating rod 37 is rotated back into the fixed seat 39, and the positioning rod 41 is passed through the rotating rod 37 by the fixed block 58. During the process of the pressing block 42 at one end of the positioning rod 41 passing through the rotating rod 37, the pressing block 42 first presses the pressure roller 54 at one end of the pressure rod 51, pushing the pressing rod 46 and the pressing seat 45 to move in opposite directions as a whole. The pressing of the pressing block 38 by the pressing seat 45 automatically presses and fixes the yarn bobbin or take-up roller on the rotating rod 37. Finally, the nut 43 is tightened on the positioning rod 41 to position the rotating rod 37.

[0020] The implementation principle of an adjustable tension metal wire drawing machine according to an embodiment of the present invention is as follows: First, a wire spool and a drawing roller are fitted onto the rotating rod 37. One end of the rotating rod 37 is rotated into the fixed seat 39. The positioning rod 41 is passed through the rotating rod 37 by the fixing block 58. During the process of the positioning rod 41 passing through the rotating rod 37, the pressing block 42 at one end of the pressing rod 41 first presses the pressure roller 54 at one end of the pressure rod 51, pushing the pressing rod 46 and the pressing seat 45 to move in opposite directions as a whole. The pressing block 38 is pressed by the pressing seat 45 on the rotating rod 37. The system automatically clamps and fixes the wire spool or take-up roller. Next, the nut 43 is tightened on the positioning rod 41 to position the rotating rod 37. Then, according to actual needs, the double-acting screw 32 is rotated using the rotating wheel 33, and the two lifting sleeves 34 move synchronously in opposite directions on the double-acting screw 32 to adjust the distance between the two tension cylinders 31. This allows for flexible adjustment of the tension required during the wire drawing process. Then, the first motor 5 on the mounting plate 4 is started to drive the threaded rod 6 to rotate, moving... The moving block 7 moves on the rotating threaded rod 6, causing one end of the insertion rod 11 to slide in the first transverse groove 12. When the moving block 7 causes the insertion rod 11 to slide into the first bypass groove 13, it causes the first lifting block 10 to slide downward in the first vertical groove 9, and causes one end of the L-shaped rod 21 to slide in the driving groove 22, pushing the two sliders 19 to move towards the middle, thereby causing the two clamping bars 20 to automatically clamp one end of the metal wire. In this way, as the moving block 7 moves, automatic wire feeding can be performed, and the moving block 7 causes the insertion rod 11 to slide downward in the first horizontal groove 12. When the end slides in the first bypass groove 13, the second bypass groove 14, the third bypass groove 15 and the fourth bypass groove 16, it drives the metal wire to automatically bypass the wire guiding structure and the tension structure, and sends the metal wire to the drawing roller. Then, the moving block 7 drives one end of the insertion rod 11 to slide into the second transverse groove 17, which drives the first lifting block 10 and the L-shaped rod 21 to move up and reset as a whole. In this way, the metal wire can be automatically released and one end of the metal wire can be wound around the drawing roller. Finally, the second motor 57 is started to drive the drawing roller to rotate, and the wire drawing work can be realized.

[0021] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A tension-adjustable metal wire drawing machine, comprising a frame (1), characterized in that: The frame (1) is supported by support legs (2) at its four corners. A material trough (23) is provided in the middle of the left and right sides of the frame (1). A first through groove (24) connecting the material trough (23) is provided along the rear edge of the left and right sides of the frame (1). A wire drawing structure is provided on the left and right sides of the lower inner wall of the frame (1). A tension structure is provided on the lower inner wall and the upper inner wall of the frame (1). A rotating placement structure is provided on the left and right sides of the frame (1). A wire feeding structure is provided on the rear inner wall of the frame (1). The wire feeding structure includes two side plates (3) connected to the left and right sides of the rear side of the frame (1). The two side plates (3) are fastened to the mounting plate (4) by bolts on the side away from each other. The two mounting plates (4) are rotatably connected to a threaded rod (6). A first motor (5) is installed on one of the mounting plates (4). One end of the output shaft of the first motor (5) is connected to the threaded rod (6). A moving block (7) is sleeved on the threaded rod (6). A threaded groove for the threaded rod (6) to pass through is opened on the moving block (7). A vertical plate (8) is connected below the moving block (7). A first vertical groove (9) is opened on the vertical plate (8). A first lifting block (10) is slidably arranged in the first vertical groove (9). A guide structure is provided between the first lifting block (10) and the inner wall of the rear side of the frame (1). A clamping structure is provided on the first lifting block (10). The guiding structure includes a fixed insert rod (11) that passes through the middle of the first lifting block (10). A first transverse groove (12) is provided on the inner wall of the rear side of the frame (1). The rear end of the insert rod (11) is slidably disposed in the first transverse groove (12). A first bypass groove (13) communicating with the first transverse groove (12) is provided on the inner wall of the rear side of the frame (1). A second bypass groove (14) communicating with the first bypass groove (13) is provided on the inner wall of the rear side of the frame (1). A third bypass groove (15) communicating with the second bypass groove (14) is provided on the inner wall of the rear side of the frame (1). A fourth bypass groove (16) communicating with the third bypass groove (15) is provided on the inner wall of the rear side of the frame (1). A second transverse groove (17) communicating with the fourth bypass groove (16) is provided on the side plate (3) on the right side.

2. The tension-adjustable metal wire drawing machine according to claim 1, characterized in that: The clamping structure includes sliding grooves (18) on both sides of the front of the first lifting block (10), with sliders (19) slidably arranged in the sliding grooves (18), and clamping strips (20) connected to each slider (19). A driving structure is provided between the slider (19) and the vertical plate (8).

3. The tension-adjustable metal wire drawing machine according to claim 2, characterized in that: The driving structure includes driving grooves (22) on both sides of the front of the vertical plate (8), and an L-shaped rod (21) is connected to the slider (19). One end of the L-shaped rod (21) is slidably disposed in the driving groove (22).

4. The tension-adjustable metal wire drawing machine according to claim 1, characterized in that: The lead wire structure includes a first fixing plate (25) fastened to the left and right sides of the inner wall of the frame (1) by bolts, and a lead wire roller (26) is rotatably set on the top of the first fixing plate (25).

5. The tension-adjustable metal wire drawing machine according to claim 1, characterized in that: The tension structure includes two second fixing plates (27) fastened to the inner walls of the upper and lower sides of the frame (1) by bolts. A second vertical groove (28) is opened on the second fixing plate (27). A second lifting block (29) is slidably arranged in the second vertical groove (28). A lifting rod (30) is connected to the second lifting block (29). A tension cylinder (31) is rotatably sleeved on the lifting rod (30). An adjustment structure is provided on the frame (1).

6. The tension-adjustable metal wire drawing machine according to claim 5, characterized in that: The adjustment structure includes a bidirectional screw (32) rotatably disposed within the frame (1), a rotating wheel (33) being disposed at the bottom end of the bidirectional screw (32) rotatably passing through the frame (1), two lifting sleeves (34) being sleeved on the bidirectional screw (32), teeth being provided on the inner wall of the lifting sleeves (34), and a connecting strip (35) being connected to the lifting sleeves (34), one end of the connecting strip (35) being connected to the second lifting block (29).

7. The tension-adjustable metal wire drawing machine according to claim 1, characterized in that: The rotating placement structure includes a third fixing plate (55) fastened to the left and right sides of the frame (1) near the material trough (23) by bolts. Rotary disks (56) are rotatably installed on both the third fixing plate (55) and the side plate (3). A rotating rod (37) is provided between the two rotating disks (56) through a flip positioning structure. A wire drawing roller and a wire cylinder are respectively sleeved on the two rotating rods (37). A second motor (57) is installed on the third fixing plate (55) on the right side. One end of the output shaft of the second motor (57) is connected to one of the rotating disks (56).

8. A tension-adjustable metal wire drawing machine according to claim 7, characterized in that: The flip positioning structure includes a U-shaped seat (36) mounted on one of the rotating disks (56), through which a flip shaft (40) rotates. One end of a rotating rod (37) is fixedly sleeved on the flip shaft (40). A fixed seat (39) is mounted on the other rotating disk (56), and the other end of the rotating rod (37) is inserted into the fixed seat (39). A positioning rod (41) passes through the fixed seat (39). A fixing block (58) is provided at one end of the positioning rod (41), and a pressing block (42) is provided at the other end of the positioning rod (41). The pressing block (42) is truncated cone-shaped. A thread is provided on the positioning rod (41), and a nut (43) is tightened on the end of the positioning rod (41) near the pressing block (42). A pressure-bearing structure is provided inside the rotating rod (37).

9. A tension-adjustable metal wire drawing machine according to claim 8, characterized in that: The pressure-bearing structure includes a first inner groove (47) in the middle of the rotating rod (37), and a second inner groove (50) in the rotating rod (37) near the fixed seat (39). A pressing rod (46) moves through the wall of the first inner groove (47). A pressing seat (45) in the shape of a frustum is installed at one end of the pressing rod (46). A plurality of second through grooves (44) are provided on the wall of the first inner groove (47). A pressing block (38) is movably inserted into each second through groove (44). A fixed sleeve is fixedly fitted on the pressing rod (46). A fixed ring (48) is provided, and a spring (49) is fitted on the extrusion rod (46). The two ends of the spring (49) are respectively connected to the fixed ring (48) and the inner wall of one end of the first inner groove (47). The extrusion rod (46) is inserted into the second inner groove (50) and one end is connected to the pressure rod (51). A third through groove (52) is opened on the pressure rod (51). The third through groove (52) rotates through the through rod (53). A pressure wheel (54) is fixedly fitted in the middle of the through rod (53). The pressure wheel (54) is close to the positioning rod (41).

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