A copper wire attenuating tension adjusting mechanism

Abstract

The utility model provides a copper wire attenuates tension adjusting mechanism, including frame, sliding board, fixed plate, attenuating mould, spiral spring, T slide bar, disc and stroke adjusting mechanism, frame is equipped with through hole no.

Description

Technical Field

[0001] This utility model relates to the field of copper wire thinning technology, and in particular to a copper wire thinning tension adjustment mechanism. Background Technology

[0002] Copper wire refers to wire made from hot-rolled copper rods that are not annealed, but smaller wires may require intermediate annealing. It is used for weaving mesh, cables, copper brush filters, etc. During the production of copper wire, a winding mechanism is needed to tighten and wind up the produced copper wire.

[0003] Copper wire drawing is a core step in the deep processing of copper materials. It involves multiple drawing passes to gradually reduce the wire diameter and improve surface quality. The process involves passing a coarse copper wire blank through a drawing machine die, applying tension with the aid of lubricant to induce plastic deformation. Each drawing pass reduces the wire diameter by 5%-20%, and annealing is then performed to eliminate work hardening. Key parameters for this process include drawing speed, die angle, lubrication conditions, and tension control.

[0004] However, traditional tension adjustment mechanisms mostly use mechanical springs or pneumatic control methods, adjusting the braking torque by detecting the difference in drum speed or the swing angle. Existing technologies have the following problems: they cannot preset the maximum tension threshold, and the system lacks an effective protection mechanism when the copper wire experiences a sudden surge in tension due to local defects or speed fluctuations. Utility Model Content

[0005] In view of this, the present invention proposes a copper wire drawing tension adjustment mechanism to solve the problems mentioned above.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A copper wire drawing tension adjustment mechanism includes a frame, a sliding plate, a fixed plate, a drawing die, a helical spring, a T-shaped slide rod, a disc, and a stroke adjustment mechanism. The frame has flush through holes at both ends. The sliding plate and the fixed plate are sequentially arranged within the frame. The two ends of the sliding plate are slidably connected to the inner wall of the frame. The drawing die is embedded in the sliding plate. The T-shaped slide rod has external threads from its center to its end, and its other end is a smooth rod. The T-shaped slide rod is slidably mounted on the fixed plate, with its bottom abutting against the side of the fixed plate. Its axis has a through hole penetrating both sides, and the through hole is aligned with the axis of the drawing die. The disc is sleeved on the T-shaped slide rod and threadedly connected to it. The helical spring is sleeved on the T-shaped slide rod, with one end abutting against the disc and the other end abutting against the fixed plate. The stroke adjustment mechanism is located on the fixed plate, and a trigger switch is located on its side, on one side of the disc. The stroke adjustment mechanism adjusts the distance between the trigger switch and the disc.

[0008] Preferably, the system also includes a moving mechanism, which includes a limiting plate, a screw, and a crank handle. The limiting plate is located on the top surface of the base, the screw passes through the limiting plate, one end of which is rotatably connected to the frame, and the other end is connected to the crank handle. The frame is slidably located on the base of the drawing machine.

[0009] Preferably, the stroke adjustment mechanism includes a T-shaped screw, a mounting plate, and a slide rod. The T-shaped screw is mounted on the fixed plate and parallel to the T-shaped slide rod. The mounting plate is rotatably mounted on the end of the T-shaped screw. The slide rod is mounted on the side of the mounting plate, with one end sliding through the fixed plate and parallel to the T-shaped slide rod.

[0010] Preferably, a shaping mechanism is provided on one side of the sliding plate. The shaping mechanism includes an extrusion plate, a hydraulic rod, an induction coil, and a thermocouple. The hydraulic rod is located on the inner wall of the frame and its telescopic end is connected to the extrusion plate. A shaping groove is provided on the opposite side of the extrusion plate. The induction coil is located on the opposite side of the extrusion plate, and the thermocouple is embedded in the top of the pressure plate.

[0011] Preferably, the shaping groove includes a conical portion and a circular portion, with one end of the circular portion located on one side of the drawing die and the other end connected to the smaller end of the conical portion.

[0012] Preferably, the slide plate also includes a support plate and an infrared temperature sensor, wherein the support plate is disposed on the side of the slide plate and the infrared temperature sensor is disposed on the bottom surface of the support plate.

[0013] Preferably, the system also includes a slider, wherein the frame has a groove relative to the inner wall, the slider is slidably disposed in the groove, and is respectively connected to both ends of the sliding plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By rotating the disc, the disc moves and compresses the helical spring, adjusting the preload of the helical spring. The stroke adjustment mechanism is used to adjust the stroke of the disc moving and contacting the trigger switch. When the copper wire encounters jamming, the copper wire drives the sliding plate to move, and the sliding plate pushes the first T-shaped slide rod to slide. The disc compresses the helical spring. When the side of the disc moves and contacts the trigger switch, the drawing machine stops, thus preventing the copper wire from breaking.

[0016] 2. Set up a shaping mechanism. When the copper wire encounters a jam and the drawing machine stops, the frame is moved by the crank handle, so that the jammed part of the copper wire moves to the middle of the extrusion plate. The hydraulic rod is activated, and the extension end of the hydraulic rod extends to drive the extrusion plate to close, extruding the copper wire. At the same time, the induction coil is activated to heat the extrusion plate, increase the temperature of the copper wire, and the drawing machine is restarted to continue to complete the copper wire drawing operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a copper wire drawing tension adjustment mechanism according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the extrusion plate of this utility model when it is closed;

[0020] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0021] Reference numerals: 1. Frame; 2. Fixing plate; 3. T-shaped slide bar; 4. Through hole one; 5. Helical spring; 6. Disc; 7. T-shaped screw; 8. Mounting plate; 9. Slide bar; 10. Trigger switch; 11. Slide groove; 12. Slider; 13. Support plate; 14. Infrared temperature sensor; 15. Hydraulic rod; 16. Extrusion plate; 17. Induction coil; 18. Circular part; 19. Conical part; 20. Drawing die; 21. Sliding plate; 22. Thermocouple; 23. Screw; 24. Limiting plate; 25. Handle; 26. Copper wire; 27. Through hole two. Detailed Implementation

[0022] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0023] See Figures 1 to 3This utility model provides a copper wire drawing tension adjustment mechanism, including a frame 1, a sliding plate 21, a fixed plate 2, a drawing die 20, a helical spring 5, a T-shaped slide rod 3, a disc 6, and a stroke adjustment mechanism. The frame 1 has flush through holes 4 at both ends. The sliding plate 21 and the fixed plate 2 are sequentially arranged inside the frame 1. The two ends of the sliding plate 21 are slidably connected to the inner wall of the frame 1. The drawing die 20 is embedded in the sliding plate 21. The T-shaped slide rod 3 has external threads from its center to its end, and its other end is a smooth rod. 3. It is slidably mounted on the fixed plate 2 and its bottom abuts against the side of the fixed plate 2. It has a through hole 27 through both sides on its axis. The through hole 27 is aligned with the axis of the drawing die 20. The disc 6 is sleeved on the T-shaped slide rod 3 and is threadedly connected to each other. The helical spring 5 is sleeved on the T-shaped slide rod 3. One end of the spring abuts against the disc 6 and the other end abuts against the fixed plate 2. The stroke adjustment mechanism is located on the fixed plate 2. It has a trigger switch 10 on its side. The trigger switch 10 is located on one side of the disc 6. The stroke adjustment mechanism adjusts the distance between the trigger switch 10 and the disc 6.

[0024] The tension adjustment mechanism is located on the top surface of the drawing machine base. When the tension adjustment mechanism is working, the disc 6 is rotated first. The disc 6 is threadedly connected to the T-shaped slide rod 3. As the disc 6 rotates, the distance between the disc 6 and the fixed plate 2 shortens, and the compression of the helical spring 5 increases. Then, the stroke adjustment mechanism is operated to adjust the distance between the trigger switch 10 and the side of the disc 6. By using a force gauge to push the front end of the T-shaped slide rod 3, the preload of the helical spring 5 and the elastic force of the helical spring 5 when the disc 6 abuts against the trigger switch 10 can be measured. Depending on the diameter of the copper wire 26 and the drawing die 20, the tension adjustment mechanism can be adjusted accordingly. The diameter of the hole is set, the preload of the spiral spring 5 is set, and the spring force of the spiral spring 5 when it abuts the trigger switch 10 is set. Then, the copper wire 26 is passed through the through hole 4 on one side of the frame 1 and extended into the frame 1. Then, it passes through the die hole in the center of the drawing die 20, and then through the through hole 27 at the central axis of the T-shaped slide bar 3. Finally, it passes through the through hole 27 at the other end of the frame 1. The copper wire 26 is then passed out and connected to the winding device of the drawing machine. The drawing machine is started, and the winding device pulls the copper wire 26 at a certain speed. After the copper wire 26 passes through the drawing die 20, the drawing process of the copper wire 26 is realized. When the copper wire 26 becomes uneven in texture or changes in speed, the volume of the copper wire 26 located in front of the drawing die 20 increases, and the pulling force of the copper wire 26 increases. When the force of the sliding plate 21 pushing the T-shaped slide rod 3 is greater than the preload of the spiral spring 5, the T-shaped slide rod 3 is pushed to slide. The disc 6 moves and squeezes the spiral spring 5. When the disc 6 comes into contact with the trigger switch 10, the trigger switch 10 disconnects the drawing machine circuit, and the drawing machine stops, thereby avoiding the continued pulling of the copper wire 26, which would cause the copper wire 26 to break.

[0025] Preferably, a moving mechanism is also included, which includes a limiting plate 24, a screw 23 and a crank handle 25. The limiting plate 24 is disposed on the top surface of the base, the screw 23 passes through the limiting plate 24, one end of which is rotatably connected to the frame 1 and the other end is connected to the crank handle 25. The frame 1 is slidably disposed on the base of the thinning machine.

[0026] The moving mechanism is used to drive the frame 1 to move along the base of the drawing machine. When the disc 6 comes into contact with the trigger switch 10 and the drawing machine stops, the operator rotates the screw 23 by operating the crank handle 25. The end of the screw 23 is rotatably connected to the frame 1. The rotation of the screw 23 drives the frame 1 to move along the axis of the screw 23, thereby moving the part of the copper wire 26 that has increased in volume to one side, so that the helical spring 5 is reset, which is beneficial for the subsequent processing of the copper wire 26.

[0027] Preferably, the stroke adjustment mechanism includes a T-shaped screw 7, a mounting plate 8, and a slide rod 9. The T-shaped screw 7 is disposed on the fixed plate 2 and parallel to the T-shaped slide rod 3. The mounting plate 8 is rotatably disposed at the end of the T-shaped screw 7. The slide rod 9 is disposed on the side of the mounting plate 8, with one end slidingly passing through the fixed plate 2 and parallel to the T-shaped slide rod 3.

[0028] Specifically, in this embodiment, the stroke adjustment mechanism adjusts the distance between the trigger switch 10 and the disc 6. After rotating the disc 6 and adjusting the preload of the helical spring 5, the bottom of the T-shaped screw 7 is manually rotated. Rotating the T-shaped screw 7 causes the mounting plate 8 to move, which in turn causes the trigger switch 10 to move. By adjusting the distance between the trigger switch 10 and the disc 6, the maximum pull-out force of the copper wire 26 is limited.

[0029] Preferably, a shaping mechanism is provided on one side of the sliding plate 21. The shaping mechanism includes an extrusion plate 16, a hydraulic rod 15, an induction coil 17, and a thermocouple 22. The hydraulic rod 15 is located on the inner wall of the frame 1, and its telescopic end is connected to the extrusion plate 16. A shaping groove is provided on the opposite side of the extrusion plate 16. The induction coil 17 is located on the opposite side of the extrusion plate 16, and the thermocouple 22 is embedded in the top of the pressure plate.

[0030] When the copper wire 26 becomes uneven in texture or changes in speed, the volume of the copper wire 26 located in front of the drawing die 20 increases, and the drawing force of the copper wire 26 increases. After the force of the sliding plate 21 pushing the T-shaped slide rod 3 is greater than the preload of the helical spring 5, the T-shaped slide rod 3 is pushed to slide, the disc 6 moves and squeezes the helical spring 5. When the disc 6 comes into contact with the trigger switch 10, the trigger switch 10 disconnects the drawing machine circuit, and the drawing machine stops. By operating the crank handle 25 to rotate the screw 23, the end of the screw 23 is rotatably connected to the frame 1. The rotation of the screw 23 drives the frame 1 to move along the axis of the screw 23, thereby moving the increased volume of the copper wire 26 to one side of the extrusion plate 16. At the same time, the hydraulic rod 15 is activated, and its telescopic end extends, causing the extrusion plates 16 to move towards each other and fit together. Then, the induction coil 17 is activated, and the induction coil 17 rapidly heats the extrusion plate 16. When the temperature value detected by the thermocouple 22 reaches the preset value, the induction coil 17 is stopped. Then, operate the crank handle 25 to rotate the screw 23. The end of the screw 23 is rotatably connected to the frame 1, which drives the frame 1 to move along the axis of the screw 23. After the copper wire 26 enters the forming groove, it is heated by the extrusion plate 16 and reaches the preset temperature. Correspondingly, after the copper wire 26 slowly passes through the forming groove, it passes through the drawing die 20 and then the drawing machine is started to continue the drawing operation.

[0031] Preferably, the shaping groove includes a conical portion 19 and a circular portion 18, one end of the circular portion 18 being located on one side of the drawing die 20, and the other end being connected to the smaller end of its conical portion 19.

[0032] After the drawing machine stops, the operator rotates the crank handle 25 to drive the screw 23 to rotate. The rotation of the screw 23 causes the frame 1 to move, thereby moving the copper wire at the jammed part to one side of the conical part 19 and then pulling it to the other side, so that the thickened part of the copper wire abuts against the inner wall of the conical part 19. Then, the induction coil 17 is activated to heat the extrusion plate 16. The copper wire 26 with the increased diameter first enters the conical part 19, and then the diameter decreases after being extruded by the conical part 19. After passing through the circular part 18, the diameter returns to its previous state.

[0033] Preferably, the slide plate 21 is further provided with a support plate 13 and an infrared temperature sensor 14. The support plate 13 is disposed on the side of the slide plate 21, and the infrared temperature sensor 14 is disposed on the bottom surface of the support plate 13.

[0034] The copper wire 26 is produced using a hot drawing process. If the temperature is too low, it will increase the drawing resistance and reduce efficiency; if it is too high, it will cause the material to soften and its mechanical properties to decrease. The infrared temperature sensor 14 is used to detect the temperature of the copper wire 26 at the inlet of the drawing die 20, set a temperature threshold, and balance the forming efficiency and material strength. When the detected temperature value is higher than the temperature threshold, the drawing machine is stopped.

[0035] Preferably, the system also includes a slider 12. The frame 1 has a groove 11 on its inner wall. The slider 12 is slidably disposed in the groove 11 and is connected to both ends of the sliding plate 21.

[0036] The groove 11 provides precise guidance and support for the slider 12, ensuring that the slider 12 remains stable during sliding, reducing friction and wear, and realizing the linear movement of the sliding plate 21 within the frame 1.

[0037] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A copper wire drawing tension adjustment mechanism, characterized in that, The device includes a frame, a sliding plate, a fixed plate, a drawing die, a helical spring, a T-shaped slide rod, a disc, and a stroke adjustment mechanism. The frame has flush through holes at both ends. The sliding plate and fixed plate are sequentially arranged within the frame. The sliding plate is slidably connected to the inner wall of the frame at both ends. The drawing die is embedded in the sliding plate. The T-shaped slide rod has external threads from its center to its end, with the other end being a smooth rod. The T-shaped slide rod slides on the fixed plate, with its bottom abutting against the side of the fixed plate. Its axis has a through hole penetrating both sides, aligned with the axis of the drawing die. The disc is fitted onto the T-shaped slide rod and threadedly connected to it. The helical spring is fitted onto the T-shaped slide rod, with one end abutting against the disc and the other end abutting against the fixed plate. The stroke adjustment mechanism is located on the fixed plate, with a trigger switch on its side. The trigger switch is located on one side of the disc, and the stroke adjustment mechanism adjusts the distance between the trigger switch and the disc.

2. The copper wire drawing tension adjustment mechanism according to claim 1, characterized in that, It also includes a moving mechanism, which includes a limiting plate, a screw, and a crank handle. The limiting plate is located on the top surface of the base, the screw passes through the limiting plate, one end of which is rotatably connected to the frame, and the other end is connected to the crank handle. The frame is slidably located on the base of the drawing machine.

3. The copper wire drawing tension adjustment mechanism according to claim 1, characterized in that, The stroke adjustment mechanism includes a T-shaped screw, a mounting plate, and a slide rod. The T-shaped screw is mounted on the fixed plate and parallel to the T-shaped slide rod. The mounting plate is rotatably mounted on the end of the T-shaped screw. The slide rod is located on the side of the mounting plate, with one end sliding through the fixed plate and parallel to the T-shaped slide rod.

4. The copper wire drawing tension adjustment mechanism according to claim 1, characterized in that, A shaping mechanism is provided on one side of the sliding plate. The shaping mechanism includes an extrusion plate, a hydraulic rod, an induction coil, and a thermocouple. The hydraulic rod is located on the inner wall of the frame and its telescopic end is connected to the extrusion plate. A shaping groove is provided on the opposite side of the extrusion plate. The induction coil is located on the opposite side of the extrusion plate, and the thermocouple is embedded in the top of the pressure plate.

5. The copper wire drawing tension adjustment mechanism according to claim 4, characterized in that, The shaping groove includes a conical part and a circular part. One end of the circular part is located on one side of the drawing die, and the other end is connected to the smaller end of the conical part.

6. The copper wire drawing tension adjustment mechanism according to claim 1, characterized in that, It also includes a support plate and an infrared temperature sensor. The support plate is located on the side of the sliding plate, and the infrared temperature sensor is located on the bottom surface of the support plate.

7. The copper wire drawing tension adjustment mechanism according to claim 1, characterized in that, It also includes a slider, wherein the frame has a groove relative to the inner wall, the slider is slidably disposed in the groove, and is respectively connected to both ends of the sliding plate.

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