Automatic annealing machine for copper wire production

Abstract

The invention discloses an automatic annealing machine for copper wire production. The automatic annealing machine comprises a rack, a heating chamber is arranged in the middle of the upper surface of the rack, a flow guide pipe is arranged at the right end of the heating chamber, a spiral air pipe is arranged in the heating chamber, the left end of the spiral air pipe extends into the heating chamber, throttling units are arranged at the left end of the heating chamber and the right end of the flow guide pipe, and a preheating unit is arranged in the rack. The right end of the preheating unit is communicated with the throttling unit on the right side, the left end of the preheating unit is communicated with the throttling unit on the left side, a cooling unit is arranged at the right end of the rack, and the upper left end of the cooling unit is communicated with the right end of the preheating unit. The copper wire is preheated before being heated, the utilization rate of energy is increased, the size of a protective gas outlet of the heating chamber can be adjusted, loss of protective gas is reduced, and meanwhile the exhaust pressure can be increased.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire production, in particular to an automatic annealing machine for copper wire production. Background Art

[0002] Copper wire is widely used in power systems due to its good conductivity. Whether it is a household circuit, industrial equipment or a large power grid, copper wire is responsible for efficiently transmitting electrical energy, ensuring the normal operation of our equipment and providing convenience for our lives. In the process of copper wire production, an automatic annealing machine is used to anneal the copper wire to eliminate stress and improve conductivity. The existing automatic annealing machine is generally composed of a heating chamber and a cooling unit. During the heating process, a protective gas is introduced into the interior of the heating chamber to avoid the contact between the high-temperature copper wire and oxygen, thereby having a good anti-oxidation effect. Since the copper wire is processed continuously, it is necessary to continuously inject protective gas into the interior of the heating chamber, and then the protective gas flows out from both sides of the heating chamber. The protective gas is directly added without heating, which will cause the temperature in the heating chamber to decrease, requiring a large amount of energy consumption. At the same time, in order to facilitate the processing of copper wires of different diameters, there are large openings on both sides of the heating chamber, and the protective gas needs to have a higher flow rate to maintain the pressure in the heating chamber to avoid the entry of air. At the same time, after heating, the copper wire is generally cooled by water flow. The cooling effect is good, but the waste heat of the copper wire cannot generally be utilized, resulting in a waste of energy. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an automated annealing machine for copper wire production, which can utilize the waste heat of the copper wire to heat the protective gas, reduce the influence of the protective gas on the temperature inside the heating chamber, and at the same time can pump the hot air generated by cooling and the high-temperature gas discharged from the heating chamber to the front side, preheat the copper wire before heating, thereby improving the energy utilization rate, and can adjust the size of the protective gas outflow port of the heating chamber, thereby reducing the loss of the protective gas and increasing the exhaust pressure, having a good use effect and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automated annealing machine for copper wire production, comprising a frame;

[0005] Frame: A heating chamber is provided in the middle of its upper surface, a guide pipe is provided at the right end of the heating chamber, a spiral air pipe is provided inside the heating chamber, the left end of the spiral air pipe extends to the inside of the heating chamber, a throttling unit is provided at the left end of the heating chamber and the right end of the guide pipe, a preheating unit is provided inside the frame, the right end of the preheating unit is connected with the throttling unit on the right, the left end of the preheating unit is connected with the throttling unit on the left, a cooling unit is provided at the right end of the frame, the upper left end of the cooling unit is connected with the right end of the preheating unit, the protective gas can be heated by the waste heat of the copper wire, and the influence of the protective gas on the temperature inside the heating chamber can be reduced, and at the same time, the hot air generated by the cooling and the high-temperature gas discharged from the heating chamber can be pumped to the front side to preheat the copper wire before heating, thereby improving the utilization rate of energy, and the size of the protective gas outlet of the heating chamber can be adjusted to reduce the loss of the protective gas and increase the exhaust pressure at the same time, thereby having a good use effect.

[0006] Furthermore, a PLC controller is provided on the front side of the frame, and an input end of the PLC controller is electrically connected to an external power supply to facilitate automatic control of the electrical appliance.

[0007] Furthermore, the left end of the spiral air pipe extends out of the guide pipe and is provided with a solenoid valve at the end, and the input end of the solenoid valve is electrically connected to the output end of the PLC controller to facilitate the control of the protective gas.

[0008] Furthermore, the throttling unit includes a support shell, a support seat, a rotating shaft and a claw-type plate. The support shell is respectively arranged on the left side of the heating chamber and the right end of the guide tube. A support seat is provided at the end of the support shell away from the heating chamber. The through holes at the edge of the support seat are rotatably connected with a rotating shaft. A claw-type plate is provided at the end of the rotating shaft away from the support shell. Two adjacent claw-type plates are laterally staggered to facilitate the adjustment of the size of the air outlet.

[0009] Furthermore, the throttling unit also includes a slide column, a gear ring and a gear 1. The slide columns are evenly arranged at the edge of the support seat close to the side of the support shell. The slide columns on the same support seat are slidably connected to the long sliding holes at the edge of the same gear ring. Gear 1 is respectively arranged at one end of the rotating shaft close to the support shell. Gear 1 is meshedly connected with the gear ring on the same support seat to facilitate the control of the synchronous rotation of the rotating shaft.

[0010] Furthermore, the throttling unit also includes a driving component, which includes a servo motor, gear 2 and a fan gear. The servo motors are respectively arranged at the lower end of the support seat, and gear 2 is provided on the output shaft of the servo motor. Fan gears are provided on the outer arc surface of the gear ring. Gear 2 is meshed and connected with the vertically corresponding fan gear. The input end of the servo motor is electrically connected to the output end of the PLC controller to facilitate the control of the rotation of the gear ring.

[0011] Furthermore, the preheating unit includes a collecting hood, a blower 1, an air duct and a preheating pipe. The collecting hood is arranged on the right side of the support seat on the right side, a blower 1 is arranged inside the frame, and the exhaust pipe of the blower 1 extends to the interior of the collecting hood. The preheating pipe is arranged on the left side of the support seat on the left side. An air duct is arranged at the air outlet end of the blower 1, and the left end of the air duct extends to the interior of the preheating pipe. The left end of the air duct is inclined to the left from bottom to top, and the input end of the blower 1 is electrically connected to the output end of the PLC controller to facilitate the recovery and utilization of hot air.

[0012] Furthermore, the cooling unit includes a second blower, an air supply pipe, a cooling shell, an air outlet pipe and blowing holes. The second blower is arranged at the right end inside the frame, and the air outlet end of the second blower is provided with an air supply pipe. The cooling shell is arranged on the right side of the collection cover. The upper end of the air supply pipe is connected with the interior of the cooling shell. The interior of the cooling shell is provided with an air outlet pipe. The inner arc surface of the air outlet pipe is provided with evenly distributed blowing holes. The input end of the second blower is electrically connected to the output end of the PLC controller to facilitate the cooling of the copper wire.

[0013] Furthermore, the outer arc surfaces of the preheating tube and the guide tube are both covered with insulation sleeves, the upper surface of the frame is provided with a casing, and the insulation sleeves are all located inside the casing to reduce heat loss.

[0014] Furthermore, an electric heating tube is provided at the lower end of the heating chamber, and a temperature sensor is provided at the upper end of the heating chamber. The output end of the temperature sensor is electrically connected to the input end of the PLC controller, and the input end of the electric heating tube is electrically connected to the output end of the PLC controller, so that the copper wire can be heated.

[0015] Compared with the prior art, the invention has the following beneficial effects: the automatic annealing machine for copper wire production has the following advantages:

[0016] 1. Adjust the PLC controller. The electric heating tube works to heat the inside of the heating chamber. The temperature sensor detects the temperature inside the heating chamber and converts the detection result into an electrical signal for transmission to the PLC controller. The PLC controller can monitor the heating temperature of the copper wire. The PLC controller controls the solenoid valve to open. The protective gas passes through the solenoid valve and is injected into the interior of the heating chamber through the spiral air pipe. During the annealing of the copper wire, the protective gas can prevent the high-temperature copper wire from contacting with oxygen and avoid oxidation of the copper wire. The copper wire moving to the right can heat the internal protective gas through the spiral air pipe wall. The residual heat of the copper wire can be used to heat the protective gas, reducing the impact of the protective gas on the temperature inside the heating chamber, thereby reducing energy waste.

[0017] 2. The size of the exhaust port can be adjusted according to the diameter of the copper wire and the usage requirements. During adjustment, the PLC controller controls the servo motor to operate, and the output shaft of the servo motor drives gear 2 to rotate. Gear 2 drives the gear ring to rotate through the fan gear under the support of the sliding column. The long sliding hole of the gear ring slides relative to the sliding column, and the gear ring drives gear 1 to rotate. Gear 1 drives the claw plate to rotate through the rotating shaft. When the end of the claw plate rotates toward the center of the support seat, the center through hole formed by the claw plate will decrease, and vice versa. Therefore, the size of the protective gas outflow port can be adjusted. When the flow rate of the spiral air pipe is constant, the smaller the outflow port, the higher the discharge pressure, which can avoid the entry of external air. During use, the size of the protective gas outflow port of the heating chamber can be adjusted to reduce the loss of protective gas while increasing the exhaust pressure to avoid the entry of air. The adjustment is simple and convenient to use.

[0018] 3. Adjust the PLC controller and start blower 2. Blower 2 blows air to the inside of the cooling shell through the air pipe. The airflow inside the cooling shell and the air outlet pipe is blown out from the blowing holes, so that the copper wire can be cooled by blowing air. At the same time, blower 1 works to exhaust air inside the collecting hood, and then the protective gas flowing out from the right side and the hot air generated by cooling are pumped into the air duct, and then transported to the inside of the preheating pipe. The hot air preheats the incoming copper wire. The left end of the air duct is tilted to the left from bottom to top to facilitate the air to flow out to the left. During use, the copper wire can be cooled by blowing air. At the same time, the hot air generated by cooling and the high-temperature gas discharged from the heating chamber can be pumped to the front side to preheat the copper wire before heating, thereby improving the energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic cross-sectional structural diagram of the casing of the present invention;

[0021] Figure 3 This is a schematic diagram of the enlarged structure of A of the present invention;

[0022] Figure 4 It is a schematic cross-sectional structural diagram of the throttling unit of the present invention.

[0023] In the figure: 1 frame, 2 heating chamber, 3 guide pipe, 4 spiral air pipe, 5 throttling unit, 51 support shell, 52 support seat, 53 shaft, 54 claw plate, 55 slide column, 56 gear ring, 57 gear 1, 58 drive assembly, 581 servo motor, 582 gear 2, 583 fan gear, 6 solenoid valve, 7 preheating unit, 71 collection cover, 72 blower 1, 73 air guide pipe, 74 preheating pipe, 8 cooling unit, 81 blower 2, 82 air supply pipe, 83 cooling shell, 84 air outlet pipe, 85 blowing hole, 9 insulation cover, 10 electric heating pipe, 11 temperature sensor, 12 housing, 13 PLC controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-4 ,This embodiment provides a technical solution: an automated annealing machine for copper wire production, comprising a frame 1;

[0026] Frame 1: A heating chamber 2 is provided in the middle of its upper surface. Frame 1 provides support for the upper parts. A guide tube 3 is provided at the right end of the heating chamber 2. A spiral air pipe 4 is provided inside the heating chamber 2. The left end of the spiral air pipe 4 extends to the inside of the heating chamber 2. The copper wire moving to the right heats the internal protective gas through the wall of the spiral air pipe 4. The residual heat of the copper wire can be used to heat the protective gas to reduce the influence of the protective gas on the internal temperature of the heating chamber 2. A throttling unit 5 is provided at the left end of the heating chamber 2 and the right end of the guide tube 3. A preheating unit 7 is provided inside the frame 1. The right end of the preheating unit 7 is connected to the throttling unit 5 on the right, and the left end of the preheating unit 7 is connected to the throttling unit 5 on the left. A cooling unit 8 is provided at the right end of the frame 1. The upper left end of element 8 is connected with the right end of preheating unit 7, a PLC controller 13 is arranged on the front side of frame 1, the input end of PLC controller 13 is electrically connected to external power supply, the left end of spiral air pipe 4 extends out of guide pipe 3 and is provided with solenoid valve 6 at the end, the input end of solenoid valve 6 is electrically connected to the output end of PLC controller 13, protective gas passes through solenoid valve 6 and is injected into the interior of heating chamber 2 through spiral air pipe 4, the protective gas prevents high-temperature copper wire from contacting with oxygen, and prevents oxidation of copper wire, the throttling unit 5 comprises a supporting shell 51, a supporting seat 52, a rotating shaft 53 and a claw plate 54, the supporting shell 51 is respectively arranged on the left side of heating chamber 2 and the right end of guide pipe 3, the supporting shell 51 is provided with a supporting seat 52 at the end away from heating chamber 2 , the through holes at the edge of the support seat 52 are rotatably connected with a rotating shaft 53, and a claw plate 54 is provided at one end of the rotating shaft 53 away from the support shell 51, and the two adjacent claw plates 54 are arranged in a transverse offset manner, and the protective gas inside the heating chamber 2 and the guide tube 3 flows out from the through holes at the ends of the claw plates 54 on the left and right sides. When the ends of the claw plates 54 rotate toward the center of the support seat 52, the central through hole formed by the claw plates 54 will be reduced, and vice versa, it will be increased, so that the size of the protective gas flow outlet can be adjusted. The throttling unit 5 also includes a sliding column 55, a gear ring 56 and a gear 57. The sliding columns 55 are evenly arranged at the edges of the support seat 52 close to the side of the support shell 51, and the sliding columns 55 on the same support seat 52 are all connected to the edge of the same gear ring 56. The long sliding hole of the gear 57 is slidably connected, the gear 1 57 is respectively arranged at one end of the rotating shaft 53 close to the supporting shell 51, the gear 1 57 is meshed with the gear ring 56 on the same supporting seat 52, the long sliding hole of the gear ring 56 slides relatively with the sliding column 55, the gear ring 56 drives the gear 1 57 to rotate, and the gear 1 57 drives the claw plate 54 to rotate through the rotating shaft 53. The throttling unit 5 also includes a driving assembly 58, and the driving assembly 58 includes a servo motor 581, a gear 2 582 and a fan gear 583. The servo motors 581 are respectively arranged at the lower end of the supporting seat 52, and the output shafts of the servo motors 581 are provided with gear 2 582, and the outer arc surface of the gear ring 56 is provided with a fan gear 583. The gear 2 582 is meshed with the vertically corresponding fan gear 583.The input end of the servo motor 581 is electrically connected to the output end of the PLC controller 13. The output shaft of the servo motor 581 drives the gear 2 582 to rotate. The gear 2 582 drives the gear ring 56 to rotate under the support of the sliding column 55 through the fan gear 583. The preheating unit 7 includes a collecting hood 71, a blower 1 72, an air duct 73 and a preheating pipe 74. The collecting hood 71 is arranged on the right side of the right support seat 52. A blower 1 72 is arranged inside the frame 1. The exhaust pipe of the blower 1 72 extends to the inside of the collecting hood 71. The preheating pipe 74 is arranged on the left side of the left support seat 52. The air outlet end of the blower 1 72 is provided with an air duct 73. The air duct 73 The left end extends to the interior of the preheating pipe 74, and the blower 1 72 works to exhaust the interior of the collection cover 71, and then the protective gas flowing out from the right side and the hot air generated by cooling are pumped into the interior of the air guide pipe 73, and then transported to the interior of the preheating pipe 74. The hot air preheats the incoming copper wire. The left end of the air guide pipe 73 is tilted to the left from bottom to top to facilitate the air to flow out to the left. The input end of the blower 1 72 is electrically connected to the output end of the PLC controller 13. The cooling unit 8 includes a blower 2 81, an air supply pipe 82, a cooling shell 83, an air outlet pipe 84 and an air blowing hole 85. The blower 2 81 is arranged at the right end inside the frame 1, and the air outlet end of the blower 2 81 is provided with an air supply pipe 84 and an air outlet hole 85. The air pipe 82 and the cooling shell 83 are arranged on the right side of the collecting cover 71. The upper end of the air supply pipe 82 is connected with the interior of the cooling shell 83. The interior of the cooling shell 83 is provided with an air outlet pipe 84. The inner arc surface of the air outlet pipe 84 is provided with evenly distributed blowing holes 85. The input end of the blower 81 is electrically connected to the output end of the PLC controller 13. The blower 81 blows air to the interior of the cooling shell 83 through the air supply pipe 82. The air flow inside the cooling shell 83 and the air outlet pipe 84 is blown out from the blowing holes 85, so that the copper wire can be blown and cooled in one circle. The outer arc surfaces of the preheating pipe 74 and the guide pipe 3 are both provided with insulation sleeves 9. The insulation sleeves 9 are polyurethane insulation sleeves. The upper surface of the frame 1 The surface is provided with a casing 12, and the insulation sleeve 9 is located inside the casing 12. The casing 12 protects the internal parts. The lower end of the heating chamber 2 is provided with an electric heating tube 10, and the upper end of the heating chamber 2 is provided with a temperature sensor 11. The output end of the temperature sensor 11 is electrically connected to the input end of the PLC controller 13, and the input end of the electric heating tube 10 is electrically connected to the output end of the PLC controller 13. The electric heating tube 10 works to heat the inside of the heating chamber 2. The temperature sensor 11 detects the temperature inside the heating chamber 2 and converts the detection result into an electrical signal to transmit to the PLC controller 13. The PLC controller 13 can monitor the heating temperature of the copper wire.

[0027] The working principle of an automatic annealing machine for copper wire production provided by the present invention is as follows: when in use, the front end of the solenoid valve 6 is connected to the external protective gas source, and the copper wire passes through the preheating tube 74, the left support shell 51, and the left support seat 52 under the action of the wire pulley on the left side of the frame 1 to enter the interior of the heating chamber 2, and then passes through the guide tube 3, the middle part of the spiral air pipe 4, the right support shell 51, the right support seat 52, the collection cover 71 and the air outlet pipe 84 to be pulled out by the external winding device, the PLC controller 13 is regulated, the electric heating tube 10 works to heat the interior of the heating chamber 2, and the temperature sensor 11 detects the temperature inside the heating chamber 2 and converts the detection result into electric The signal is transmitted to the PLC controller 13, and the PLC controller 13 can monitor the heating temperature of the copper wire. The PLC controller 13 controls the solenoid valve 6 to open, and the protective gas passes through the solenoid valve 6 and is injected into the interior of the heating chamber 2 through the spiral air pipe 4. The protective gas prevents the high-temperature copper wire from contacting with oxygen, thereby preventing the copper wire from oxidizing. The copper wire moving to the right heats the internal protective gas through the wall of the spiral air pipe 4. The residual heat of the copper wire can be used to heat the protective gas, thereby reducing the influence of the protective gas on the internal temperature of the heating chamber 2, thereby reducing the waste of energy. The protective gas inside the heating chamber 2 and the guide tube 3 flows out from the through holes at the ends of the claw plates 54 on the left and right sides. At the same time, the size of the through hole can be adjusted according to the diameter of the copper wire and the use requirements. During the adjustment, the PLC controller 13 controls the servo motor 581 to operate, and the output shaft of the servo motor 581 drives the gear 2 582 to rotate, and the gear 2 582 drives the gear ring 56 to rotate under the support of the slide column 55 through the fan gear 583, and the long sliding hole of the gear ring 56 slides relative to the slide column 55, and the gear ring 56 drives the gear 1 57 to rotate, and the gear 1 57 drives the claw plate 54 to rotate through the rotating shaft 53. When the end of the claw plate 54 rotates toward the center direction of the support seat 52, the center through hole formed by the claw plate 54 will be reduced, and vice versa, it will be increased, so that the size of the protective gas outlet can be adjusted. Adjustment, when the flow of the spiral air pipe 4 is constant, the smaller the flow outlet is, the higher the discharge pressure is, which can avoid the entry of external air. The blower 2 81 blows air to the inside of the cooling shell 83 through the air supply pipe 82, and the air flow inside the cooling shell 83 and the air outlet pipe 84 is blown out from the blowing hole 85, so that the copper wire can be cooled by blowing air around it. At the same time, the blower 1 72 works to exhaust the inside of the collecting cover 71, and then the protective gas flowing out from the right side and the hot air generated by the cooling are pumped into the inside of the air guide pipe 73, and then transported to the inside of the preheating pipe 74. The hot air preheats the incoming copper wire. The left end of the air guide pipe 73 is tilted to the left from bottom to top to facilitate the air to flow out to the left.

[0028] It is worth noting that the blower 1 72, blower 2 81, servo motor 581, solenoid valve 6, electric heating tube 10, temperature sensor 11 and PLC controller 13 disclosed in the above embodiments can be freely configured according to the actual application scenario. Blower 1 72 and blower 2 81 can both use a blower with model RB-21D-2, the servo motor 581 can use a servo motor with model 40JASM5012K-20B, the solenoid valve 6 can use a solenoid valve with model 2L-50, the electric heating tube 10 can use a stainless steel heat sink heating tube, the temperature sensor 11 can use a temperature sensor with model WRN-230, and the PLC controller 13 can use a PLC controller with model FX3U-48MR / ES-A. The PLC controller 13 controls the operation of blower 1 72, blower 2 81, servo motor 581, solenoid valve 6, electric heating tube 10 and temperature sensor 11 using methods commonly used in the prior art.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automated annealing machine for copper wire production, characterized in that: comprising a frame (1); The frame (1) is provided with a heating chamber (2) in the middle of its upper surface, a flow guide pipe (3) is provided at the right end of the heating chamber (2), a spiral air pipe (4) is provided inside the heating chamber (2), the left end of the spiral air pipe (4) extends into the interior of the heating chamber (2), a throttling unit (5) is provided at the left end of the heating chamber (2) and the right end of the flow guide pipe (3), a preheating unit (7) is provided inside the frame (1), the right end of the preheating unit (7) is connected to the throttling unit (5) on the right side, the left end of the preheating unit (7) is connected to the throttling unit (5) on the left side, a cooling unit (8) is provided at the right end of the frame (1), and the upper left end of the cooling unit (8) is connected to the right end of the preheating unit (7).

2. The automatic annealing machine for copper wire production according to claim 1, characterized in that: A PLC controller (13) is provided on the front side of the frame (1), and an input end of the PLC controller (13) is electrically connected to an external power supply.

3. The automatic annealing machine for copper wire production according to claim 2, characterized in that: The left end of the spiral air pipe (4) extends out of the guide pipe (3) and is provided with a solenoid valve (6) at the end, and the input end of the solenoid valve (6) is electrically connected to the output end of the PLC controller (13).

4. The automatic annealing machine for copper wire production according to claim 2, characterized in that: The throttling unit (5) comprises a support shell (51), a support seat (52), a rotating shaft (53) and a claw-shaped plate (54); the support shell (51) is respectively arranged on the left side of the heating chamber (2) and the right end of the guide tube (3); the support shell (51) is provided with a support seat (52) at one end away from the heating chamber (2); the rotating shaft (53) is rotatably connected inside the through hole at the edge of the support seat (52); the rotating shaft (53) is provided with a claw-shaped plate (54) at one end away from the support shell (51); and two adjacent claw-shaped plates (54) are laterally staggered.

5. The automatic annealing machine for copper wire production according to claim 4, characterized in that: The throttling unit (5) further comprises a sliding column (55), a toothed ring (56) and a gear one (57); the sliding columns (55) are evenly arranged at the edge of the support seat (52) close to the side of the support shell (51); the sliding columns (55) on the same support seat (52) are all slidably connected to the long sliding hole at the edge of the same toothed ring (56); the gear one (57) is respectively arranged at one end of the rotating shaft (53) close to the support shell (51); the gear one (57) is meshedly connected to the toothed ring (56) on the same support seat (52).

6. The automatic annealing machine for copper wire production according to claim 5, characterized in that: The throttling unit (5) further comprises a driving assembly (58), the driving assembly (58) comprising a servo motor (581), a second gear (582) and a sector gear (583), the servo motors (581) being respectively arranged at the lower end of the support seat (52), the output shaft of the servo motor (581) being provided with a second gear (582), the outer arc surface of the gear ring (56) being provided with a sector gear (583), the second gear (582) being meshedly connected with the vertically corresponding sector gear (583), and the input end of the servo motor (581) being electrically connected to the output end of the PLC controller (13).

7. The automatic annealing machine for copper wire production according to claim 4, characterized in that: The preheating unit (7) comprises a collecting hood (71), a blower (72), an air guide pipe (73) and a preheating pipe (74); the collecting hood (71) is arranged on the right side of the right support seat (52); a blower (72) is arranged inside the frame (1); an air extraction pipe of the blower (72) extends to the inside of the collecting hood (71); the preheating pipe (74) is arranged on the left side of the left support seat (52); an air guide pipe (73) is arranged at the air outlet end of the blower (72); the left end of the air guide pipe (73) extends to the inside of the preheating pipe (74); the left end of the air guide pipe (73) is arranged to be inclined to the left from bottom to top; and the input end of the blower (72) is electrically connected to the output end of the PLC controller (13).

8. The automatic annealing machine for copper wire production according to claim 7, characterized in that: The cooling unit (8) comprises a second blower (81), an air supply pipe (82), a cooling shell (83), an air outlet pipe (84) and air blowing holes (85). The second blower (81) is arranged at the right end inside the frame (1). The air outlet end of the second blower (81) is provided with an air supply pipe (82). The cooling shell (83) is arranged on the right side of the collecting cover (71). The upper end of the air supply pipe (82) is communicated with the inside of the cooling shell (83). The inside of the cooling shell (83) is provided with an air outlet pipe (84). The inner arc surface of the air outlet pipe (84) is provided with air blowing holes (85) evenly distributed. The input end of the second blower (81) is electrically connected to the output end of the PLC controller (13).

9. The automatic annealing machine for copper wire production according to claim 7, characterized in that: The outer arc surfaces of the preheating tube (74) and the guide tube (3) are both provided with insulation sleeves (9), the upper surface of the frame (1) is provided with a casing (12), and the insulation sleeves (9) are both located inside the casing (12).

10. The automatic annealing machine for copper wire production according to claim 2, characterized in that: An electric heating tube (10) is provided at the lower end of the heating chamber (2), and a temperature sensor (11) is provided at the upper end of the heating chamber (2); the output end of the temperature sensor (11) is electrically connected to the input end of a PLC controller (13), and the input end of the electric heating tube (10) is electrically connected to the output end of the PLC controller (13).

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