Automatic copper wire straightening device and method thereof

Abstract

The invention discloses an automatic copper wire straightening device which comprises a workbench, a primary straightening mechanism, a moving mechanism, a secondary straightening mechanism, a heating furnace and a control mechanism. The primary straightening mechanism drives an impact plate through an electric cylinder to conduct primary knocking straightening on the copper wire, initial bending is eliminated, and the internal structure is optimized. The moving mechanism pushes the copper wire to stably move to the secondary straightening mechanism through the linkage assembly and the rolling wheels. The secondary straightening mechanism conducts secondary straightening on the copper wire through a U-shaped wheel, and straightness and internal structure optimization are guaranteed. The heating furnace is used for heating and quenching the copper wire, residual stress is eliminated, grain refinement is promoted, and the electric conductivity is improved. Through the synergistic effect of primary straightening, secondary straightening and heating quenching, full-process automation of copper wire straightening is achieved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire straightening, and particularly to an automatic copper wire straightening device and method thereof. Background Art

[0002] As an indispensable conductive material in the fields of power transmission, electronic devices, communication cables, etc., the quality of copper wire directly affects the performance and reliability of electrical equipment. With the continuous increase in the demand for high-precision and high-performance electrical equipment in modern industry, higher requirements are put forward for the straightness, conductivity, and uniformity of the internal grain structure of copper wire. However, there are many technical bottlenecks in the traditional copper wire production process during the straightening process, making it difficult to meet the high standards of modern industry for the quality of copper wire. Summary of the Invention

[0003] The present invention overcomes the deficiencies of the prior art and provides an automatic copper wire straightening device.

[0004] To achieve the above object, the technical solution adopted by the present invention is: an automatic copper wire straightening device, comprising:

[0005] A workbench,

[0006] A primary straightening mechanism, arranged on the top surface of the workbench and fixedly connected to the workbench;

[0007] A moving mechanism, arranged on the primary straightening mechanism and connected to the primary straightening mechanism;

[0008] A secondary straightening mechanism, arranged on one side of the primary straightening mechanism and connected to the moving mechanism;

[0009] A heating furnace, arranged on the side of the secondary straightening mechanism away from the primary straightening mechanism; and

[0010] A control mechanism, arranged on the primary straightening mechanism and connected to the primary straightening mechanism.

[0011] In a preferred embodiment of the present invention, the primary straightening mechanism comprises:

[0012] A bracket, arranged on the top surface of the workbench and fixedly connected to the workbench;

[0013] A receiving plate, horizontally arranged on the bracket and fixedly connected to the bracket;

[0014] A straight groove, arranged on the top surface of the receiving plate;

[0015] Two electric cylinders, symmetrically and obliquely arranged above the straight groove and fixedly connected to the bracket, and the angle of the output end deviates from the vertical direction by between 55° and 75°; and

[0016] Two impact plates, whose sides are respectively perpendicular to the axes of the output ends of the two electric cylinders, are arranged at the output ends of the two electric cylinders and are respectively fixedly connected to the output ends of the two electric cylinders.

[0017] In a preferred embodiment of the present invention, the moving mechanism includes:

[0018] A rotating shaft, which is horizontally arranged above the straight groove and is rotatably connected to the bracket;

[0019] A roller, which is arranged on the rotating shaft and is coaxially and fixedly connected to the rotating shaft, and the circumferential side of the roller fits the shape of the straight groove;

[0020] A plurality of elastic sheets, which are respectively arranged on the circumferential side of the roller and are respectively fixedly connected to the roller, and the shapes of the plurality of elastic sheets fit the shape of the straight groove; and

[0021] A linkage assembly, which is arranged between the rotating shaft and the two electric cylinders and is respectively connected to the rotating shaft and the two electric cylinders.

[0022] In a preferred embodiment of the present invention, the linkage assembly includes:

[0023] A sliding rod, which is horizontally arranged at the output ends of the two electric cylinders, and both ends of it are slidably connected to the output ends of the two electric cylinders;

[0024] Two sliding grooves, which are respectively arranged at the sliding rod and the output ends of the two electric cylinders;

[0025] A reciprocating lead screw, which is vertically arranged between the two electric cylinders and the roller, and one end of it is rotatably connected to the bracket;

[0026] A lead screw nut, which is sleeved on the circumferential side of the reciprocating lead screw;

[0027] A connecting rod, which is arranged between the sliding rod and the lead screw nut, and both ends of it are fixedly connected to the sliding rod and the lead screw nut respectively; and

[0028] An output assembly, which is arranged on the bracket and is connected to the reciprocating lead screw.

[0029] In a preferred embodiment of the present invention, the secondary straightening mechanism includes:

[0030] A first straightening plate, which is vertically arranged on the side of the two electric cylinders away from the roller and is fixedly connected to the bracket;

[0031] A plurality of first short rods, which are respectively horizontally arranged on one side of the first straightening plate and are symmetrically arranged up and down, and one end of each of them is fixedly connected to the side surface of the first straightening plate and is connected to the output assembly;

[0032] A plurality of first U-shaped wheels, which are respectively arranged on the plurality of first short rods and are respectively coaxially and fixedly connected to the plurality of first short rods; and

[0033] The supplementary component is arranged on the side of the first straightening plate away from the two electric cylinders, fixedly connected to the bracket, and connected to the output component.

[0034] In a preferred embodiment of the present invention, the supplementary component includes:

[0035] The second straightening plate is horizontally arranged on the side of the first straightening plate away from the two electric cylinders and fixedly connected to the bracket;

[0036] A plurality of second short rods are respectively vertically arranged on the upper side of the first straightening plate, symmetrically arranged left and right, their lower ends are respectively fixedly connected to the first straightening plate, and connected to the output component;

[0037] A plurality of second U-shaped wheels are respectively arranged on the plurality of second short rods and are coaxially and fixedly connected to the plurality of second short rods respectively.

[0038] In a preferred embodiment of the present invention, the output component includes:

[0039] The crown gear is arranged at the top end of the reciprocating lead screw and is coaxially and fixedly connected to the reciprocating lead screw;

[0040] The first gear is arranged at one end of the rotating shaft, coaxially and fixedly connected to the rotating shaft, and meshes with the crown gear;

[0041] The first pulley is arranged at the other end of the rotating shaft and is coaxially and fixedly connected to the rotating shaft;

[0042] A plurality of second pulleys are respectively arranged at one end of a plurality of first short rods on one side, are respectively connected by belts, are coaxially and fixedly connected to the plurality of first short rods respectively, and are connected to the first pulley by belts;

[0043] A plurality of second gears are respectively arranged at one end of the plurality of first short rods and are coaxially and fixedly connected to the plurality of first short rods respectively. A plurality of second gears on one side respectively mesh with a plurality of second gears on the other side;

[0044] The third pulley is arranged above the crown gear and is coaxially and fixedly connected to the reciprocating lead screw;

[0045] A plurality of fourth pulleys are respectively arranged at one end of a plurality of second short rods on one side, are respectively connected by belts, are coaxially and fixedly connected to the plurality of second short rods respectively, and are connected to the third pulley by belts; and

[0046] A plurality of third gears are respectively arranged at one end of the plurality of second short rods and are coaxially and fixedly connected to the plurality of second short rods respectively. A plurality of third gears on one side respectively mesh with a plurality of third gears on the other side.

[0047] In a preferred embodiment of the present invention, the control mechanism includes:

[0048] A controller, which is arranged on the bracket, fixedly connected to the bracket, and electrically connected to two electric cylinders respectively; and

[0049] A displacement sensor, which is arranged above the straight groove, fixedly connected to the bracket, and electrically connected to the controller.

[0050] In a preferred embodiment of the present invention, it includes:

[0051] A first collecting hopper, which is arranged between several first U-shaped wheels and the receiving plate, fixedly connected to the bracket, and its larger port is arranged close to the straight groove; and

[0052] A second collecting hopper, which is arranged between the first straightening plate and the second straightening plate, fixedly connected to the bracket, and its larger port is arranged close to the first straightening plate.

[0053] In a preferred embodiment of the present invention, an automatic copper wire straightening device, its working method includes the following steps:

[0054] S1. Move one end of the cast copper wire into the straight groove, and the displacement sensor detects the moving position of the copper wire;

[0055] S2. The controller controls the two electric cylinders to start, and the two electric cylinders drive the two impact plates to strike the copper wire in the straight groove for straightening;

[0056] S3. The two electric cylinders drive the moving mechanism and the output component to start through the linkage component, and the moving mechanism drives the copper wire to move between several first U-shaped wheels;

[0057] S4. The output component drives several first U-shaped wheels and several second U-shaped wheels to rotate through several first short rods and several second short rods respectively. Rotate several first U-shaped wheels and several second U-shaped wheels to straighten the copper wire again, and convey the straightened copper wire into the heating furnace;

[0058] S5. The heating furnace heats and quenches the copper wire; and

[0059] In S2, the angle of the impact plate deviates from the vertical direction between 55° - 75°, and the ratio of the moving speed of the copper wire to the knocking frequency of the impact plate on the copper wire is 20:1 - 60:1.

[0060] The present invention solves the defects in the background technology, and the present invention has the following beneficial effects:

[0061] (1) Through the synergistic effect of primary straightening, secondary straightening and heat treatment quenching, the device can optimize the internal grain structure of the copper wire, effectively reduce the scattering of electrons by grain boundaries, and thus significantly improve the conductivity of the copper wire. At the same time, the device ensures that the copper wire maintains high straightness and consistency during the straightening process, improves the overall quality of the copper wire, and makes it more suitable for high-precision and high-performance electrical applications.

[0062] (2) The present invention adopts an automated control technology. By using a displacement sensor to detect the position of the copper wire and driving each component to work together by a controller, the full-process automation of copper wire straightening is achieved. This not only improves the production efficiency and reduces manual intervention, but also ensures the accuracy and stability of the straightening process by precisely controlling the moving speed and knocking force, avoiding quality fluctuations caused by human factors.

[0063] (3) The present invention designs a multi-stage straightening mechanism and a complex transmission system, which can straighten the copper wire multiple times and make fine adjustments to ensure that the copper wire reaches an ideal straightness before entering the heating furnace. In addition, by adjusting the parameters of the transmission components, the device can flexibly adapt to copper wires of different specifications and materials, with wide applicability and good adjustability, meeting diverse production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0065] Figure 1 is a partial side-sectional structural schematic diagram of the present invention;

[0066] Figure 2 is a partial front structural schematic diagram of the present invention.

[0067] In the figure: 1, support; 2, receiving plate; 3, straight groove; 4, electric cylinder; 5, impact plate; 6, rotating shaft; 7, roller; 8, elastic sheet; 9, slide bar; 10, reciprocating lead screw; 11, lead screw nut; 12, first straightening plate; 13, first short rod; 14, first U-shaped wheel; 15, second straightening plate; 16, second short rod; 17, second U-shaped wheel; 18, crown gear; 19, first gear; 20, first pulley; 21, second pulley; 22, second gear; 23, third pulley; 24, fourth pulley; 25, third gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0068] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0069] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below.

[0070] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0071] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific circumstances.

[0072] As Figure 1 、 Figure 2 shown, an automatic copper wire straightening device includes: a workbench, a primary straightening mechanism, a moving mechanism, a secondary straightening mechanism, a heating furnace, and a control mechanism. The primary straightening mechanism is disposed on the top surface of the workbench and is fixedly connected to the workbench; the moving mechanism is disposed on the primary straightening mechanism and is connected to the primary straightening mechanism; the secondary straightening mechanism is disposed on one side of the primary straightening mechanism and is connected to the moving mechanism; the heating furnace is disposed on the side of the secondary straightening mechanism away from the primary straightening mechanism; and the control mechanism is disposed on the primary straightening mechanism and is connected to the primary straightening mechanism.

[0073] Move one end of the cast copper wire into the primary straightening mechanism. The control mechanism detects the moving position of the copper wire and drives the primary straightening mechanism to start. The primary straightening mechanism drives the moving mechanism to start, and the moving mechanism drives the secondary straightening mechanism to start. The primary straightening mechanism initially straightens the copper wire. At the same time, the moving mechanism pushes the copper wire into the secondary straightening mechanism, and the secondary straightening mechanism further straightens the copper wire. The moving mechanism and the secondary straightening mechanism jointly push the copper wire into the heating furnace, and the heating furnace heats and quenches the copper wire. Through the coordinated work of the primary straightening mechanism, the moving mechanism, the secondary straightening mechanism, and the heating furnace, not only can the automatic straightening of the copper wire be realized, but also by controlling the moving speed of the copper wire and the knocking force on the copper wire, the internal crystal grain structure of the copper wire can be optimized, thereby improving the conductivity of the copper wire, while ensuring the straightness and consistency of the copper wire.

[0074] As Figure 1 , Figure 2 shown, the primary straightening mechanism includes: a bracket 1, a receiving plate 2, a straight groove 3, two electric cylinders 4, and two impact plates 5. The bracket 1 is arranged on the top surface of the workbench and fixedly connected to the workbench; the receiving plate 2 is horizontally arranged on the bracket 1 and fixedly connected to the bracket 1; the straight groove 3 is arranged on the top surface of the receiving plate 2; two electric cylinders 4 are symmetrically and obliquely arranged above the straight groove 3 and fixedly connected to the bracket 1, and the angle of their output ends deviates from the vertical direction by between 55° and 75°; and two impact plates 5, the sides of which are perpendicular to the axes of the output ends of the two electric cylinders 4 respectively, are arranged at the output ends of the two electric cylinders 4 and fixedly connected to the output ends of the two electric cylinders 4 respectively.

[0075] The control mechanism detects the moving position of the copper wire and controls the two electric cylinders 4 to start. The two electric cylinders 4 respectively drive the two impact plates 5 to strike the copper wire in the straight groove 3 for straightening. By driving the impact plates 5 to strike the copper wire through the electric cylinders 4, the initial bending of the copper wire can be effectively eliminated, and the internal structure of the copper wire can be optimized by controlling the knocking force, laying a foundation for improving the conductivity subsequently.

[0076] As Figure 1 shown, the moving mechanism includes: a rotating shaft 6, a roller 7, a plurality of elastic sheets 8, and a linkage assembly. The rotating shaft 6 is horizontally arranged above the straight groove 3 and rotatably connected to the bracket 1; the roller 7 is arranged on the rotating shaft 6 and coaxially fixedly connected to the rotating shaft 6, and the circumference of the roller 7 fits the shape of the straight groove 3; a plurality of elastic sheets 8 are respectively arranged on the circumference of the roller 7 and fixedly connected to the roller 7 respectively, and the shapes of the plurality of elastic sheets 8 fit the shape of the straight groove 3; and the linkage assembly is arranged between the rotating shaft 6 and the two electric cylinders 4 and is respectively connected to the rotating shaft 6 and the two electric cylinders 4.

[0077] Two electric cylinders 4 drive the linkage assembly to start. The linkage assembly drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the roller 7 to rotate. The roller 7 drives a number of elastic sheets 8 to rotate. The rotating roller 7 and a number of elastic sheets push the copper wire to move. The power of the electric cylinder 4 is transmitted to the roller 7 through the linkage assembly. The roller 7 and the elastic sheet 8 jointly push the copper wire to move, realizing the smooth conveyance of the copper wire during the straightening process, and avoiding the generation of new bends in the copper wire during movement by controlling the movement rate, ensuring that the copper wire smoothly enters the heating furnace for conductivity optimization.

[0078] As Figure 1 , Figure 2 shown, the linkage assembly includes: a slide bar 9, two chutes, a reciprocating lead screw 10, a lead screw nut 11, a connecting rod, and an output assembly. The slide bar 9 is horizontally arranged at the output ends of the two electric cylinders 4, and its two ends are respectively slidably connected to the output ends of the two electric cylinders 4; the two chutes are respectively arranged at the positions of the slide bar 9 and the output ends of the two electric cylinders 4; the reciprocating lead screw 10 is vertically arranged between the two electric cylinders 4 and the roller 7, and one end thereof is rotatably connected to the bracket 1; the lead screw nut 11 is sleeved on the periphery of the reciprocating lead screw 10; the connecting rod is arranged between the slide bar 9 and the lead screw nut 11, and its two ends are respectively fixedly connected to the slide bar 9 and the lead screw nut 11; and the output assembly is arranged on the bracket 1 and connected to the reciprocating lead screw 10.

[0079] The two electric cylinders 4 drive the slide bar 9 to move up and down reciprocally. The slide bar 9 drives the lead screw nut 11 to move up and down reciprocally through the connecting rod. The reciprocating lead screw 10 drives the reciprocating lead screw 10 to rotate. The rotating reciprocating lead screw 10 drives the output assembly to start. Through the movement of the electric cylinders 4 driving the slide bar 9 and the reciprocating lead screw 10, the rotation of the roller 7 is realized, ensuring the continuous movement of the copper wire and the stability of the straightening process, providing continuous and stable conveyance conditions for subsequent heating and quenching to improve the conductivity.

[0080] As Figure 1 shown, the secondary straightening mechanism includes: a first straightening plate 12, a number of first short rods 13, a number of first U-shaped wheels 14, and a supplementary assembly. The first straightening plate 12 is vertically arranged on the side of the two electric cylinders 4 away from the roller 7 and is fixedly connected to the bracket 1; the number of first short rods 13 are respectively horizontally arranged on one side of the first straightening plate 12 and are symmetrically arranged up and down. One end of each of them is fixedly connected to the side surface of the first straightening plate 12 and is connected to the output assembly; the number of first U-shaped wheels 14 are respectively arranged on the number of first short rods 13 and are coaxially and fixedly connected to the number of first short rods 13; and the supplementary assembly is arranged on the side of the first straightening plate 12 away from the two electric cylinders 4 and is fixedly connected to the bracket 1 and is connected to the output assembly.

[0081] The output component drives several first short rods 13 to rotate, and drives the replenishment component to start. The several first short rods 13 respectively drive several first U-shaped wheels 14 to rotate. While the rotating first U-shaped wheels 14 assist the copper wire to move into the replenishment component, they straighten the copper wire. By driving the first short rods 13 and the first U-shaped wheels 14 to rotate through the output component, the copper wire is further straightened, and the internal structure of the copper wire is optimized by controlling the straightening force and speed, ensuring the final straightening effect of the copper wire before entering the heating furnace, and at the same time providing high-quality straightened copper wire for improving the conductivity during heating and quenching.

[0082] As Figure 1 shown, the replenishment component includes: a second straightening plate 15, several second short rods 16, and several second U-shaped wheels 17. The second straightening plate 15 is horizontally arranged on the side of the first straightening plate 12 away from the two electric cylinders 4 and is fixedly connected to the bracket 1; several second short rods 16 are respectively vertically arranged on the upper side of the first straightening plate 12, are symmetrically arranged left and right, their lower ends are respectively fixedly connected to the first straightening plate 12, and are connected to the output component; several second U-shaped wheels 17 are respectively arranged on the several second short rods 16 and are coaxially and fixedly connected to the several second short rods 16.

[0083] The output component drives several second short rods 16 to rotate, and the several second short rods 16 respectively drive several second U-shaped wheels 17 to rotate. While the rotating second U-shaped wheels 17 assist the copper wire to move into the heating furnace, they straighten the copper wire. By driving the second short rods 16 and the second U-shaped wheels 17 to rotate through the output component, it further assists the copper wire to move into the heating furnace and perform the final straightening, ensuring the straightness and consistency of the copper wire before heating, and optimizing the internal structure of the copper wire by controlling the straightening speed, providing a high-quality copper wire basis for the improvement of conductivity.

[0084] As Figure 1 、 Figure 2As shown in the figure, the output components include: a crown gear 18, a first gear 19, a first pulley 20, a plurality of second pulleys 21, a plurality of second gears 22, a third pulley 23, a plurality of fourth pulleys 24, and a plurality of third gears 25. The crown gear 18 is arranged at the top end of the reciprocating lead screw 10 and is coaxially and fixedly connected to the reciprocating lead screw 10; the first gear 19 is arranged at one end of the rotating shaft 6 and is coaxially and fixedly connected to the rotating shaft 6, and meshes with the crown gear 18; the first pulley 20 is arranged at the other end of the rotating shaft 6 and is coaxially and fixedly connected to the rotating shaft 6; a plurality of second pulleys 21 are respectively arranged at one end of a plurality of first short rods 13 on one side, are respectively connected by belts, and are respectively coaxially and fixedly connected to the plurality of first short rods 13, and are connected to the first pulley 20 by belts; a plurality of second gears 22 are respectively arranged at one end of the plurality of first short rods 13 and are respectively coaxially and fixedly connected to the plurality of first short rods 13, and a plurality of second gears 22 on one side respectively mesh with a plurality of second gears 22 on the other side; the third pulley 23 is arranged above the crown gear 18 and is coaxially and fixedly connected to the reciprocating lead screw 10; a plurality of fourth pulleys 24 are respectively arranged at one end of a plurality of second short rods 16 on one side, are respectively connected by belts, and are respectively coaxially and fixedly connected to the plurality of second short rods 16, and are connected to the third pulley 23 by belts; a plurality of third gears 25 are respectively arranged at one end of the plurality of second short rods 16 and are respectively coaxially and fixedly connected to the plurality of second short rods 16, and a plurality of third gears 25 on one side respectively mesh with a plurality of third gears 25 on the other side.

[0085] The rotating reciprocating lead screw 10 drives the crown gear 18 and the third pulley 23 to rotate. The rotating crown gear 18 drives the first gear 19 to rotate. The first gear 19 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the first pulley 20 to rotate. The first pulley 20 drives a plurality of first short rods 13 to rotate through a plurality of second pulleys 21 and a plurality of second gears 22. A plurality of first short rods 13 respectively drive a plurality of first U-shaped wheels 14 to rotate. The rotating third pulley 23 drives a plurality of second short rods 16 to rotate through a plurality of fourth pulleys 24 and a plurality of third gears 25. A plurality of second short rods 16 drive a plurality of second U-shaped wheels 17 to rotate. By changing the diameters of the crown gear 18, the first gear 19, the first pulley 20, the plurality of second pulleys 21, the plurality of second gears 22, the third pulley 23, the plurality of fourth pulleys 24, and the plurality of third gears 25, the ratio of the moving speed of the copper wire to the knocking frequency of the copper wire by the impact plate 5 can be changed. Through a complex gear and belt transmission system, the synchronous rotation of multiple straightening wheels is realized, ensuring the uniform stress of the copper wire during the straightening process, and optimizing the internal structure of the copper wire by controlling the rotation rate, improving the straightening effect, and at the same time providing a copper wire with uniform stress for heating and quenching to improve the conductivity.

[0086] The control mechanism includes: a controller and a displacement sensor. The controller is disposed on the bracket 1, fixedly connected to the bracket 1, and electrically connected to the two electric cylinders 4 respectively; and the displacement sensor is disposed above the straight groove 3, fixedly connected to the bracket 1, and electrically connected to the controller.

[0087] The displacement sensor detects the position where the copper wire enters the straight groove 3 and transmits a signal to the controller, and the controller controls the two electric cylinders 4 to start. By detecting the position of the copper wire through the displacement sensor and the controller controlling the start of the electric cylinders 4 according to the signal, the automatic control of the copper wire straightening process is realized, the production efficiency and precision are improved, and the high quality of the copper wire is ensured during the straightening and heating quenching processes, thereby improving the conductivity.

[0088] It includes: a first collecting hopper and a second collecting hopper. The first collecting hopper is disposed between a plurality of first U-shaped wheels 14 and the receiving plate 2, fixedly connected to the bracket 1, and its larger port is disposed close to the straight groove 3; and the second collecting hopper is disposed between the first straightening plate 12 and the second straightening plate 15, fixedly connected to the bracket 1, and its larger port is disposed close to the first straightening plate 12.

[0089] The copper wire passes through the first collecting hopper and then enters between a plurality of first U-shaped wheels 14, and then passes through the second collecting hopper and enters between a plurality of second U-shaped wheels 17. Through the design of the collecting hopper, the smooth transition of the copper wire during the straightening process is ensured, the jamming or offset of the copper wire during the movement is avoided, the straightening effect and production efficiency are further improved, and the internal structure is optimized by controlling the moving speed of the copper wire, providing smooth copper wire conveying conditions for improving the conductivity during heating quenching.

[0090] When the present invention is in use, one end of the cast copper wire is first moved into the primary straightening mechanism. The control mechanism detects the position of the copper wire through the displacement sensor and drives the primary straightening mechanism to start. The two electric cylinders 4 in the primary straightening mechanism drive the two impact plates 5 to strike and straighten the copper wire in the straight groove 3 at an inclination angle of 55° - 75°, eliminating the initial bending of the copper wire and optimizing its internal structure. Subsequently, the primary straightening mechanism drives the moving mechanism to start. The linkage assembly in the moving mechanism, through the coordinated action of the sliding rod 9, the reciprocating lead screw 10, and the output assembly, drives the rotating shaft 6 to drive the roller 7 and the elastic sheet 8 to rotate, pushing the copper wire to move smoothly to the secondary straightening mechanism. The first straightening plate 12, the first short rod 13, and the first U-shaped wheel 14 in the secondary straightening mechanism straighten the copper wire for the second time under the drive of the output assembly. At the same time, the second straightening plate 15, the second short rod 16, and the second U-shaped wheel 17 in the supplementary assembly further assist the movement of the copper wire and perform the final straightening, ensuring the straightness of the copper wire and the optimization of its internal structure. The moving mechanism and the secondary straightening mechanism jointly push the copper wire into the heating furnace, and the heating furnace performs heat treatment by quenching on the copper wire, eliminating the internal residual stress and promoting grain refinement and recrystallization. Finally, the copper wire has the characteristics of high straightness and high conductivity while being straightened. Throughout the process, the control mechanism real-time monitors and adjusts the moving speed, the striking speed, and the striking angle of the copper wire through the displacement sensor and the controller, ensuring the high efficiency, precision, and consistency of the straightening and heat treatment by quenching processes.

[0091] Using the automatic copper wire straightening device of the present invention, the device was tested multiple times with No. 2 oxygen-free copper wire. By detecting the conductivity of the No. 2 oxygen-free copper wire, the optimal angle at which the impact plate of the device deviates from the vertical direction, and the optimal ratio of the moving speed of the copper wire to the striking frequency of the impact plate on the copper wire were determined. Hereinafter, the angle at which the impact plate deviates from the vertical direction is simply referred to as the impact angle, and the ratio of the moving speed of the copper wire to the striking frequency of the impact plate on the copper wire is simply referred to as the speed-strike ratio.

[0092] Example 1, the impact angle is taken as 55°, and the speed-strike ratio is taken as 20:1;

[0093] Example 2, the impact angle is taken as 55°, and the speed-strike ratio is taken as 30:1;

[0094] Example 3, the impact angle is taken as 55°, and the speed-strike ratio is taken as 60:1;

[0095] Example 4, the impact angle is taken as 65°, and the speed-strike ratio is taken as 20:1;

[0096] Example 5, the impact angle is taken as 75°, and the speed-strike ratio is taken as 20:1;

[0097] Table 1 Variation table of the conductivity of oxygen-free copper wire

[0098]

[0099]

[0100] It can be seen from the above experimental table that when the impact angle is 65° and the impact speed ratio is 30:1, the conductivity of the No. 2 oxygen-free copper wire is the highest:

[0101] Impact angle / ° Strike ratio Conductivity / % 65 30：1 99.98

[0102] By controlling the moving speed, it is ensured that the copper wire is subjected to uniform stress and deformation during the straightening process, avoiding non-uniform grain structure caused by too fast or too slow speed; by adjusting the knocking speed, uniform plastic deformation is generated in the copper wire during the straightening process, promoting grain refinement and recrystallization, and reducing the scattering of electrons by grain boundaries; by optimizing the knocking angle (such as 55°-75°), the internal stress distribution of the copper wire is made uniform, promoting the directional arrangement of grains, and further reducing the resistivity. In addition, combined with the heat treatment of heating and quenching in the heating furnace, the residual stress inside the copper wire is eliminated, promoting further grain refinement and recrystallization, and finally enabling the copper wire to have the characteristics of high straightness and high conductivity while being straightened.

[0103] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An automatic copper wire straightening device Comprising: Characterized in that it comprises: Workbench Primary straightening mechanism, disposed on the top surface of the workbench and fixedly connected to the workbench; Moving mechanism, disposed on the primary straightening mechanism and connected to the primary straightening mechanism; Secondary straightening mechanism, disposed on one side of the primary straightening mechanism and connected to the moving mechanism; Heating furnace, disposed on the side of the secondary straightening mechanism away from the primary straightening mechanism; and Control mechanism, disposed on the primary straightening mechanism and connected to the primary straightening mechanism.

2. The automatic copper wire straightening device according to claim 1, characterized in that: The primary straightening mechanism comprises: Bracket (1), disposed on the top surface of the workbench and fixedly connected to the workbench; Receiving plate (2), horizontally disposed on the bracket (1) and fixedly connected to the bracket (1); Straight groove (3), disposed on the top surface of the receiving plate (2); Two electric cylinders (4), symmetrically and obliquely disposed above the straight groove (3) and fixedly connected to the bracket (1), and the angle of the output end thereof deviates from the vertical direction by between 55° and 75°; and Two impact plates (5), the sides of which are respectively perpendicular to the axes of the output ends of the two electric cylinders (4), disposed at the output ends of the two electric cylinders (4) and respectively fixedly connected to the output ends of the two electric cylinders (4).

3. The automatic copper wire straightening device according to claim 2, characterized in that: The moving mechanism comprises: Rotating shaft (6), horizontally disposed above the straight groove (3) and rotatably connected to the bracket (1); Roller (7), disposed on the rotating shaft (6) and coaxially and fixedly connected to the rotating shaft (6); A plurality of elastic sheets (8), respectively disposed on the periphery of the roller (7) and respectively fixedly connected to the roller (7); and Linkage assembly, disposed between the rotating shaft (6) and the two electric cylinders (4) and respectively connected to the rotating shaft (6) and the two electric cylinders (4).

4. The automatic copper wire straightening device according to claim 3, characterized in that: The linkage assembly comprises: Slide rod (9), horizontally disposed at the output ends of the two electric cylinders (4), and the two ends thereof are respectively slidably connected to the output ends of the two electric cylinders (4); Two chute grooves, respectively disposed at the slide rod (9) and the output ends of the two electric cylinders (4); Reciprocating lead screw (10), vertically disposed between the two electric cylinders (4) and the roller (7), and one end thereof is rotatably connected to the bracket (1); Lead screw nut (11), sleeved on the periphery of the reciprocating lead screw (10); Connecting rod, disposed between the slide rod (9) and the lead screw nut (11), and the two ends thereof are respectively fixedly connected to the slide rod (9) and the lead screw nut (11); and Output assembly, disposed on the bracket (1) and connected to the reciprocating lead screw (10).

5. An automatic copper wire straightening device according to claim 4, characterized in that: The secondary straightening mechanism comprises: First straightening plate (12), vertically disposed on the side of the two electric cylinders (4) away from the roller (7) and fixedly connected to the bracket (1); A plurality of first short rods (13), respectively horizontally disposed on one side of the first straightening plate (12) and symmetrically arranged up and down, one end of which is respectively fixedly connected to the side surface of the first straightening plate (12) and connected to the output assembly; A number of first U-shaped wheels (14) are respectively arranged on a number of the first short rods (13) and are coaxially and fixedly connected to the number of the first short rods (13); and A supplementary component is arranged on the side of the first straightening plate (12) away from the two electric cylinders (4), is fixedly connected to the bracket (1), and is connected to the output component.

6. The automatic copper wire straightening device according to claim 5, characterized in that: The supplementary component includes: A second straightening plate (15) is horizontally arranged on the side of the first straightening plate (12) away from the two electric cylinders (4) and is fixedly connected to the bracket (1); A number of second short rods (16) are respectively vertically arranged on the upper side of the first straightening plate (12), are symmetrically arranged left and right, their lower ends are respectively fixedly connected to the first straightening plate (12), and are connected to the output component; A number of second U-shaped wheels (17) are respectively arranged on a number of the second short rods (16) and are coaxially and fixedly connected to the number of the second short rods (16).

7. An automatic copper wire straightening device according to claim 6, characterized in that: The output component includes: A crown gear (18) is arranged at the top end of the reciprocating lead screw (10) and is coaxially and fixedly connected to the reciprocating lead screw (10); A first gear (19) is arranged at one end of the rotating shaft (6), is coaxially and fixedly connected to the rotating shaft (6), and meshes with the crown gear (18); A first pulley (20) is arranged at the other end of the rotating shaft (6) and is coaxially and fixedly connected to the rotating shaft (6); A number of second pulleys (21) are respectively arranged at one end of a number of the first short rods (13) on one side, are respectively connected by belts, and are connected to the first pulley (20) by belts; A number of second gears (22) are respectively arranged at one end of a number of the first short rods (13) and are coaxially and fixedly connected to the number of the first short rods (13). A number of the second gears (22) on one side respectively mesh with a number of the second gears (22) on the other side; A third pulley (23) is arranged above the crown gear (18) and is coaxially and fixedly connected to the reciprocating lead screw (10); A number of fourth pulleys (24) are respectively arranged at one end of a number of the second short rods (16) on one side, are respectively connected by belts, and are connected to the third pulley (23) by belts; and A number of third gears (25) are respectively arranged at one end of a number of the second short rods (16) and are coaxially and fixedly connected to the number of the second short rods (16). A number of the third gears (25) on one side respectively mesh with a number of the third gears (25) on the other side.

8. The automatic copper wire straightening device according to claim 2, characterized in that: The control mechanism includes: A controller is arranged on the bracket (1), is fixedly connected to the bracket (1), and is electrically connected to the two electric cylinders (4) respectively; and A displacement sensor is arranged above the straight groove (3), is fixedly connected to the bracket (1), and is electrically connected to the controller.

9. An automatic copper wire straightening device according to claim 6, characterized in that: It includes: A first collecting hopper is arranged between a number of the first U-shaped wheels (14) and the receiving plate (2), is fixedly connected to the bracket (1), and its larger port is arranged close to the straight groove (3); and The second collecting hopper is arranged between the first straightening plate (12) and the second straightening plate (15), and is fixedly connected to the bracket (1), and its larger port is arranged close to the first straightening plate (12).

10. A working method of an automatic copper wire straightening device, comprising an automatic copper wire straightening device according to any one of claims 1-9, characterized in that: Its working method includes the following steps: S1. Move one end of the cast copper wire into the straight groove (3), and the displacement sensor detects the moving position of the copper wire; S2. The controller controls the two electric cylinders (4) to start, and the two electric cylinders (4) drive the two impact plates (5) respectively to strike the copper wire in the straight groove (3) for straightening; S3. The two electric cylinders (4) drive the moving mechanism and the output assembly to start through the linkage assembly, and the moving mechanism drives the copper wire to move between a plurality of first U-shaped wheels (14); S4. The output assembly drives a plurality of first U-shaped wheels (14) and a plurality of second U-shaped wheels (17) to rotate through a plurality of first short rods (13) and a plurality of second short rods (16) respectively. The rotating plurality of first U-shaped wheels (14) and a plurality of second U-shaped wheels (17) straighten the copper wire again and convey the straightened copper wire into the heating furnace; S5. The heating furnace heats and quenches the copper wire; and In S2, the angle of the impact plate (5) deviates from the vertical direction is between 55° and 75°, and the ratio of the moving speed of the copper wire to the knocking frequency of the impact plate (5) on the copper wire is 20:1 - 60:1.

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