Straightening jaw device of copper bar drawing machine

Abstract

The utility model discloses a straightening jaw device for a copper bar drawing machine, relates to the technical field of straightening jaws for the copper bar drawing machine, and aims to solve the problem that an existing straightening jaw can adjust a die sleeve with a spherical surface to a proper angle by finely adjusting an adjusting bolt before drawing so as to change the acting force in the drawing direction to enable a product to achieve the due effect. The utility model discloses a copper bar straightening device which solves the problem that the copper bar straightening effect is affected due to the fact that an adjusting bolt needs to be manually loosened and tightened to adjust the angle during adjustment work, errors are prone to occurring during manual adjustment, and oil cylinder bases are fixedly installed in one side of a fixing frame, and oil cylinders are fixedly installed above the upper oil cylinder base and below the lower oil cylinder base correspondingly. Jaw sliding seats are fixedly mounted below the upper oil cylinder and below the lower oil cylinder correspondingly, a mounting seat is fixedly mounted on one side of each jaw sliding seat, a fixing seat is fixedly mounted in each mounting seat, a first mold seat is rotatably mounted in each fixing seat, and a second mold seat is rotatably mounted in each first mold seat.

Description

Technical Field

[0001] This utility model relates to the field of straightening jaws for copper busbar drawing machines, specifically a straightening jaw device for copper busbar drawing machines. Background Technology

[0002] A copper busbar drawing machine is a type of metal processing equipment, belonging to the category of drawing machinery. Its main function is to transform large copper materials into copper busbars and wires of specific specifications and dimensions through continuous drawing deformation. During the drawing process, the copper grains are continuously refined, improving the material's hardness, density, and strength. The working principle of a copper busbar drawing machine involves placing a copper billet into a drawing die inside the machine. Under continuous drawing deformation through the die, the copper billet is transformed into copper busbars or wires of the specified dimensions. Copper bar drawing is widely used in electronics, electrical engineering, machinery manufacturing, automotive industry, and construction industry. The straightening jaws of a copper busbar drawing machine refer to the jaws used to clamp and straighten the copper busbars. During the copper busbar drawing process, the jaws play a crucial role. They must not only firmly clamp the copper busbar to prevent slippage or deformation during drawing but also straighten it when necessary to ensure it achieves the expected dimensional and shape accuracy.

[0003] Chinese Patent Publication No. CN205020540U discloses a copper busbar drawing die device, including a machine body die base, a die sleeve, and a die. The die is fitted into the die sleeve to form an integral part, and a horizontal drawing channel is provided in the middle. The machine body die base has an outer die cavity for positioning the die sleeve. The die sleeve includes a front die base and a rear die cavity cover. The rear die cavity cover is fixedly connected to the front die base by bolts. It has a die cavity in which the die is fitted to form an integral die, and a horizontal drawing channel is provided axially. The connecting wall between the die sleeve and the outer die cavity is a matching spherical surface. An end cover is provided on the outer die cavity to limit the rotation of the die sleeve. This utility model provides a way to achieve automatic straightening when drawing copper busbars. The produced products do not require straightening, which improves product production efficiency, saves investment in straightening equipment, and utilizes the disassembly of the die to quickly remove the tail material remaining in the die during the drawing of copper busbars, reducing the wear of the die caused by removing tail material. At the same time, it reduces labor intensity and improves product production efficiency.

[0004] The existing technical solutions mentioned above have the following drawbacks: before stretching, the adjusting bolts need to be finely adjusted to allow the spherical die sleeve to be adjusted to a suitable angle so as to change the force in the stretching direction and achieve the desired effect on the product. The adjustment work requires manual tightening and loosening of the adjusting bolts to adjust the angle. Manual adjustment is prone to errors, which affects the straightening effect of the copper busbar. Therefore, we propose a straightening jaw device for a copper busbar stretching machine to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a straightening jaw device for a copper busbar drawing machine, so as to solve the problem mentioned in the background art that the existing straightening jaw requires fine adjustment of the adjusting bolt before stretching to adjust the spherical die sleeve to a suitable angle to change the force of the pulling direction so that the product can achieve the desired effect. The adjustment work requires manual tightening and loosening of the adjusting bolt to adjust the angle, which is prone to errors and thus affects the straightening effect of the copper busbar.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a straightening jaw device for a copper busbar drawing machine, comprising a fixed frame, a cylinder seat fixedly installed inside one side of the fixed frame, a cylinder fixedly installed above the upper cylinder seat and below the lower cylinder seat, a jaw slide fixedly installed below the upper cylinder and below the lower cylinder, a jaw tooth plate fixedly installed inside the jaw slide, a drawing pliers slidably installed on one side of the fixed frame, a mounting base fixedly installed on one side of the jaw slide, the mounting base being fixedly connected to the fixed frame, a fixed seat fixedly installed inside the mounting base, a first mold base rotatably installed inside the fixed seat, a second mold base rotatably installed inside the first mold base, a mold fixedly installed inside the second mold base, a first adjustment mechanism provided inside the upper and lower ends of the fixed seat, and a second adjustment mechanism provided inside the left and right ends of the fixed seat.

[0007] Preferably, an end cap is fixedly installed on one side of the fixed base by bolts, and an adjustment gap is provided between the end cap and the first mold base and the second mold base. The mold has an elongated pulling channel inside, and multiple friction sensors are installed at equal intervals at the upper and lower ends of the inner wall of the pulling channel.

[0008] Preferably, a cutting motor base is installed on the other side of the jaw slide, the cutting motor base is slidably connected to the fixing frame, and a cutting blade is drivenly installed on the side of the cutting motor base near the jaw slide.

[0009] Preferably, the first adjustment mechanism includes a first drive rod, a first driven gear, a first driving gear, a first drive motor, a first drive groove, a first electric telescopic cylinder, and a first gear rack. The upper and lower ends of the fixed base are both provided with first drive grooves. The first adjustment mechanism is located inside the first drive groove. The first drive rod is rotatably mounted on the middle position inside the first drive groove via a bearing. The upper and lower ends of the first mold base are symmetrically provided with first drive rod sliding grooves. The first drive rod passes through the first drive rod sliding grooves and is fixedly connected to the second mold base. The outer end of the first drive rod is fixedly fitted with a first driven gear. A first driving gear is installed on one side of the first driven gear.

[0010] Preferably, a first electric telescopic cylinder is installed inside the upper side of the first drive groove, and a first gear rack is fixedly installed below the first electric telescopic cylinder. The first gear rack is meshed with a first driven gear. A first drive motor is installed inside the upper other side of the first drive groove, and a first driving gear is driven below the first drive motor. The first driven gear is meshed with the first driving gear.

[0011] Preferably, the second adjustment mechanism includes a second drive rod, a second drive motor, a second drive gear, a second driven gear, a second electric telescopic cylinder, and a second gear rack. The left and right ends of the fixed base are provided with second drive slots. The second adjustment mechanism is located inside the second drive slot. The second drive rod is rotatably mounted on the middle position inside the second drive slot via a bearing. The second drive rod is fixedly connected to the first mold base. The outer end of the second drive rod is fixedly fitted with a second driven gear. A second drive gear is installed on one side of the second driven gear.

[0012] Preferably, a second electric telescopic cylinder is installed inside one side of the first drive groove on the left side, and a second gear rack is fixedly installed on one side of the second electric telescopic cylinder. The second gear rack is meshed with a second driven gear. A second drive motor is installed inside the other side of the first drive groove on the left side, and a second drive gear is driven and installed below the second drive motor. The second driven gear is meshed with the second drive gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When the copper busbar drawing machine of this utility model is drawing, one end of the copper busbar passes through the drawing channel. The drawing clamps clamp one end of the copper busbar and move it away from the jaw slide. At this time, the copper busbar contacts multiple friction force sensors equidistantly arranged on the inner wall of the drawing channel. The multiple friction force sensors simultaneously detect different friction forces at the contact points. According to the different force conditions at the detection points, the adjustment of the first and second mold seats is made. When adjusting the angle of the first mold seat, the second drive motor is driven. The output end of the second drive motor drives the second drive gear to rotate. The second drive gear drives the second driven gear to rotate through meshing. The rotating second driven gear drives the first mold seat and the second drive rod to rotate back and forth on both sides with the origin. After rotating to a suitable angle, the second electric telescopic cylinder extends to allow the second gear rack to mesh with the second driven gear, thereby locking the rotation angle of the second driven gear and positioning the first mold seat at that angle. When adjusting the angle of the second mold seat, the first drive motor is driven. The output of the first drive motor drives the first active gear to rotate. The first active gear, through meshing connection, drives the first driven gear to rotate. The rotating first driven gear drives the second mold base and the first drive rod to rotate left and right with the origin. After rotating to a suitable angle, the first electric telescopic cylinder extends to mesh the first gear rack with the first driven gear, thereby locking the rotation angle of the first driven gear and positioning the second mold base at that angle. After adjustment, the friction force of each friction sensor is detected. When a change occurs, the first and second mold bases are adjusted in real time, thereby achieving precise straightening of the steel busbar. This solves the problem that existing straightening jaws require manual adjustment of the adjusting bolts before stretching to adjust the spherical mold sleeve to a suitable angle to change the pulling direction force so that the product achieves the desired effect. The adjustment work requires manual tightening and loosening of the adjusting bolts to adjust the angle, which is prone to errors and affects the straightening effect of the copper busbar.

[0015] 2. When the steel strip reaches the set length, the two hydraulic cylinders extend, driving the jaw slide to move closer to the steel strip. This allows the jaw teeth at the middle position of the jaw slide to clamp the steel strip. After clamping, the cutting motor base is driven towards the steel strip by the drive device between the cutting motor base and the fixed frame. The drive device is a lead screw or pneumatic cylinder. At the same time, the cutting motor is turned on, driving the cutting blade to rotate, thus completing the cutting of the steel strip. The clamping of the jaw teeth stabilizes the position of the steel strip during cutting, reducing the problem of burrs on the cut surface caused by shaking during cutting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a diagram showing the connection relationship between the jaw slide, mounting base, fixing base, first mold base, second mold base, mold, drawing channel, and end cap in this utility model.

[0019] Figure 4 In this utility model Figure 1 A magnified view of a portion of area A;

[0020] Figure 5 In this utility model Figure 3 A magnified view of a portion of area B;

[0021] Figure 6 This is a perspective view of the first mold base in this utility model.

[0022] In the diagram: 1. Fixing frame; 2. Cylinder seat; 3. Jaw slide; 4. Cutting motor seat; 5. Cutting blade; 6. Pulling pliers; 7. Jaw teeth; 8. Cylinder; 9. Fixing seat; 10. First mold base; 11. Second mold base; 12. Mold; 13. Pulling channel; 14. End cap; 15. Mounting seat; 16. First drive rod slide groove; 17. First drive rod; 18. First driven gear; 19. First driving gear; 20. First drive motor; 21. First drive groove; 22. First electric telescopic cylinder; 23. First gear row; 24. Second drive groove; 25. Second drive rod; 26. Second drive motor; 27. Second driving gear; 28. Second driven gear; 29. ​​Second electric telescopic cylinder; 30. Second gear row; 31. First adjustment mechanism; 32. Second adjustment mechanism; 33. Friction sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-6An embodiment of this utility model provides a straightening jaw device for a copper busbar drawing machine, comprising a fixed frame 1, a cylinder seat 2 fixedly installed inside one side of the fixed frame 1, a cylinder 8 fixedly installed above the upper cylinder seat 2 and below the lower cylinder seat 2, a jaw slide 3 fixedly installed below the upper cylinder 8 and below the lower cylinder 8, a jaw tooth plate 7 fixedly installed inside the jaw slide 3, a drawing pliers 6 slidably installed on one side of the fixed frame 1, a mounting base 15 fixedly installed on one side of the jaw slide 3, the mounting base 15 being fixedly connected to the fixed frame 1, a fixed base 9 fixedly installed inside the mounting base 15, a first mold base 10 rotatably installed inside the fixed base 9, a second mold base 11 rotatably installed inside the first mold base 10, a mold 12 fixedly installed inside the second mold base 11, a first adjustment mechanism 31 provided inside the upper and lower ends of the fixed base 9, and a second adjustment mechanism 32 provided inside the left and right ends of the fixed base 9.

[0025] When the copper busbar drawing machine is drawing, one end of the copper busbar passes through the drawing channel 13. The drawing clamp 6 clamps one end of the copper busbar and moves it away from the clamp slide 3. At this time, the copper busbar contacts multiple friction force sensors 33 equidistantly arranged on the inner wall of the drawing channel 13. The multiple friction force sensors 33 simultaneously detect different friction forces at the contact points. According to the different force conditions at the detection points, the adjustment of the first mold base 10 and the second mold base 11 is made. When adjusting the angle of the first mold base 10, the second drive motor 26 is driven. The output end of the second drive motor 26 drives the second drive gear 27 to rotate. The second drive gear 27 drives the second driven gear 28 to rotate through meshing. The rotating second driven gear 28 drives the first mold base 10 and the second drive rod 25 to rotate back and forth with the origin as the origin. After rotating to the appropriate angle, the second electric telescopic cylinder 29 extends to allow the second gear rack 30 to mesh with the second driven gear 28. The rotation angle of the second driven gear 28 is locked, positioning the first mold base 10 at that angle. When adjusting the angle of the second mold base 11, the first drive motor 20 is driven. The output of the first drive motor 20 drives the first drive gear 19 to rotate. The first drive gear 19 drives the first driven gear 18 to rotate through meshing. The rotating first driven gear 18 drives the second mold base 11 to rotate left and right with the first drive rod 17 as the origin. After rotating to the appropriate angle, the first electric telescopic cylinder 22 extends to mesh the first gear rack 23 with the first driven gear 18, thereby locking the rotation angle of the first driven gear 18 and positioning the second mold base 11 at that angle. After adjustment, the friction force of each friction sensor 33 is detected. When a change occurs, the first mold base 10 and the second mold base 11 are adjusted in real time to achieve precise straightening of the steel strip.

[0026] Please see Figure 1-3An end cap 14 is bolted to one side of the fixed base 9. An adjustment gap is provided between the end cap 14 and the first mold base 10 and the second mold base 11. An elongated pulling channel 13 is opened inside the mold 12. Multiple friction sensors 33 are installed at equal intervals at the upper and lower ends of the inner wall of the pulling channel 13. A cutting motor base 4 is installed on the other side of the jaw slide 3. The cutting motor base 4 is slidably connected to the fixed frame 1. A cutting blade 5 is driven and installed on the side of the cutting motor base 4 near the jaw slide 3.

[0027] Please see Figure 4 and Figure 6 The first adjustment mechanism 31 includes a first drive rod 17, a first driven gear 18, a first driving gear 19, a first drive motor 20, a first drive groove 21, a first electric telescopic cylinder 22, and a first gear rack 23. The upper and lower ends of the fixed base 9 are provided with the first drive groove 21. The first adjustment mechanism 31 is located inside the first drive groove 21. The first drive rod 17 is rotatably installed in the middle position inside the first drive groove 21 through a bearing. The upper and lower ends of the first mold base 10 are symmetrically provided with first drive rod slide grooves 16. The first drive rod 17 passes through the first drive rod slide groove 16 and is fixedly connected to the second mold base 11. The outer end of the first drive rod 17 is fixedly fitted with the first driven gear 18. The first driving gear 19 is installed on one side of the first driven gear 18. A first electric telescopic cylinder 22 is installed inside one side of the upper end of the first drive groove 21. A first gear row 23 is fixedly installed below the first electric telescopic cylinder 22. The first gear row 23 is meshed with the first driven gear 18. A first drive motor 20 is installed inside the other side of the upper end of the first drive groove 21. A first drive gear 19 is driven below the first drive motor 20. The first driven gear 18 is meshed with the first drive gear 19.

[0028] Please see Figure 5The second adjustment mechanism 32 includes a second drive rod 25, a second drive motor 26, a second driving gear 27, a second driven gear 28, a second electric telescopic cylinder 29, and a second gear rack 30. The left and right ends of the fixed base 9 have second drive grooves 24 inside. The second adjustment mechanism 32 is located inside the second drive groove 24. The second drive rod 25 is rotatably mounted on the middle position of the second drive groove 24 via a bearing. The second drive rod 25 is fixedly connected to the first mold base 10. The outer end of the second drive rod 25 is fixedly fitted with the second driven gear 28. The second driving gear 27 is mounted on one side of the second driven gear 28. The second electric telescopic cylinder 29 is installed inside one side of the left first drive groove 21. The second gear rack 30 is fixedly mounted on one side of the second electric telescopic cylinder 29 and meshes with the second driven gear 28. The second drive motor 26 is installed inside the other side of the left first drive groove 21. The second driving gear 27 is driven and mounted below the second drive motor 26. The second driven gear 28 meshes with the second driving gear 27.

[0029] Working principle: When the copper busbar drawing machine is drawing, one end of the copper busbar passes through the drawing channel 13. The drawing clamp 6 clamps one end of the copper busbar and moves it away from the clamp slide 3. At this time, the copper busbar contacts multiple friction force sensors 33 that are equidistantly arranged on the inner wall of the drawing channel 13. The multiple friction force sensors 33 simultaneously detect different friction forces at the contact points. According to the different force conditions at the detection points, the adjustment of the first die holder 10 and the second die holder 11 is made. When the angle of the first die holder 10 is adjusted, the second drive motor 26 is driven. The output end of the second drive motor 26 drives the second drive gear 27 to rotate. The second driving gear 27 drives the second driven gear 28 to rotate through meshing. The rotating second driven gear 28 drives the first mold base 10 and the second drive rod 25 to rotate back and forth around the origin. After rotating to a suitable angle, the second electric telescopic cylinder 29 extends to mesh with the second gear rack 30 and the second driven gear 28, thereby locking the rotation angle of the second driven gear 28 and positioning the first mold base 10 at that angle. When adjusting the angle of the second mold base 11, the first drive motor 20 is driven. The output end of the first drive motor 20 drives the first driving gear 19 to rotate. 9. The first driven gear 18 is driven to rotate through the meshing connection. The rotating first driven gear 18 drives the second mold base 11 to rotate left and right with the first drive rod 17 as the origin. After rotating to a suitable angle, the first electric telescopic cylinder 22 extends to mesh the first gear row 23 with the first driven gear 18, thereby locking the rotation angle of the first driven gear 18 and positioning the second mold base 11 at that angle. After adjustment, the friction force of each friction sensor 33 is detected. When a change occurs, the first mold base 10 and the second mold base 11 are adjusted in real time to achieve precise positioning. The steel bar undergoes straightening. When the steel bar reaches the set length, two hydraulic cylinders 8 extend, driving the jaw slide 3 to move closer to the steel bar. This allows the jaw teeth 7 at the middle position of the jaw slide 3 to clamp the steel bar. After clamping, the cutting motor base 4 is driven towards the steel bar by the drive device between the cutting motor base 4 and the fixed frame 1. The drive device is a lead screw or pneumatic cylinder. At the same time, the cutting motor is turned on, driving the cutting blade 5 to rotate, thereby completing the cutting of the steel bar. The clamping of the jaw teeth 7 stabilizes the position of the steel bar during cutting, reducing the problem of burrs on the cut surface caused by shaking during cutting.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A straightening jaw device for a copper busbar drawing machine, comprising a fixing frame (1), characterized in that: A cylinder seat (2) is fixedly installed inside one side of the fixing frame (1). A cylinder (8) is fixedly installed above the upper cylinder seat (2) and below the lower cylinder seat (2). A jaw slide (3) is fixedly installed below the upper cylinder (8) and below the lower cylinder (8). A jaw tooth plate (7) is fixedly installed on the inner side of the jaw slide (3). A puller (6) is slidably installed on one side of the fixing frame (1). A mounting base (15) is fixedly installed on one side of the jaw slide (3). The mounting base (15) is fixedly connected to the fixing frame (1). A fixing base (9) is fixedly installed inside the mounting base (15). A first mold base (10) is rotatably installed inside the fixing base (9). A second mold base (11) is rotatably installed inside the first mold base (10). A mold (12) is fixedly installed inside the second mold base (11). A first adjustment mechanism (31) is provided inside the upper and lower ends of the fixing base (9). A second adjustment mechanism (32) is provided inside the left and right ends of the fixing base (9).

2. The straightening jaw device for a copper busbar drawing machine according to claim 1, characterized in that: An end cap (14) is fixedly installed on one side of the fixed base (9) by bolts. An adjustment gap is provided between the end cap (14) and the first mold base (10) and the second mold base (11). A long strip-shaped pulling channel (13) is opened inside the mold (12). Multiple friction sensors (33) are installed at equal intervals at the upper and lower ends of the inner wall of the pulling channel (13).

3. A straightening jaw device for a copper busbar drawing machine according to claim 1, characterized in that: A cutting motor seat (4) is installed on the other side of the jaw slide (3). The cutting motor seat (4) is slidably connected to the fixing frame (1). A cutting blade (5) is installed on the side of the cutting motor seat (4) near the jaw slide (3).

4. A straightening jaw device for a copper busbar drawing machine according to claim 1, characterized in that: The first adjustment mechanism (31) includes a first drive rod (17), a first driven gear (18), a first driving gear (19), a first drive motor (20), a first drive groove (21), a first electric telescopic cylinder (22), and a first gear rack (23). The upper and lower ends of the fixed base (9) are provided with the first drive groove (21). The first adjustment mechanism (31) is located inside the first drive groove (21). The first drive rod (17) is rotatably installed in the middle position inside the first drive groove (21) through a bearing. The upper and lower ends of the first mold base (10) are symmetrically provided with the first drive rod slide groove (16). The first drive rod (17) passes through the first drive rod slide groove (16) and is fixedly connected to the second mold base (11). The outer end of the first drive rod (17) is fixedly fitted with the first driven gear (18). The first driving gear (19) is installed on one side of the first driven gear (18).

5. A straightening jaw device for a copper busbar drawing machine according to claim 4, characterized in that: A first electric telescopic cylinder (22) is installed inside the upper side of the first drive groove (21). A first gear rack (23) is fixedly installed below the first electric telescopic cylinder (22). The first gear rack (23) is meshed with the first driven gear (18). A first drive motor (20) is installed inside the upper other side of the first drive groove (21). A first drive gear (19) is driven below the first drive motor (20). The first driven gear (18) is meshed with the first drive gear (19).

6. A straightening jaw device for a copper busbar drawing machine according to claim 5, characterized in that: The second adjustment mechanism (32) includes a second drive rod (25), a second drive motor (26), a second drive gear (27), a second driven gear (28), a second electric telescopic cylinder (29), and a second gear rack (30). The fixed base (9) has a second drive groove (24) inside its left and right ends. The second adjustment mechanism (32) is located inside the second drive groove (24). The second drive rod (25) is rotatably mounted on the middle position inside the second drive groove (24) via a bearing. The second drive rod (25) is fixedly connected to the first mold base (10). The second driven gear (28) is fixedly fitted on the outer end of the second drive rod (25). The second drive gear (27) is installed on one side of the second driven gear (28).

7. A straightening jaw device for a copper busbar drawing machine according to claim 6, characterized in that: A second electric telescopic cylinder (29) is installed inside one side of the first drive groove (21) on the left side. A second gear rack (30) is fixedly installed on one side of the second electric telescopic cylinder (29). The second gear rack (30) is meshed with the second driven gear (28). A second drive motor (26) is installed inside the other side of the first drive groove (21) on the left side. A second drive gear (27) is installed below the second drive motor (26). The second driven gear (28) is meshed with the second drive gear (27).

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