Annealing furnace and process for improving elongation of copper wire

Abstract

The invention relates to the technical field of metal processing, in particular to an annealing furnace and process for improving the elongation of a copper wire. The annealing furnace is fixedly installed at the top end of a placing frame, a plurality of heating pipes are arranged in the annealing furnace, a conveying frame is fixedly installed at the left end of the placing frame, and a plurality of conveying rollers are arranged at the top end of the conveying frame; a copper wire is arranged on each conveying roller, a fixing frame is fixedly installed at the right end of the containing frame, a plurality of winding wheels are arranged on the fixing frame, one end of each copper wire penetrates through the corresponding heating pipe to be connected with the corresponding winding wheel, a cleaning device is arranged on the containing frame, and the cleaning device is arranged between the conveying frame and the annealing furnace. By electrifying the heating pipe for heating, the copper wire can be gradually heated for heat treatment, and due to the fact that the heating pipe is of a spiral structure and the copper wire is arranged in the heating pipe, the copper wire is heated more uniformly, the annealing quality of the copper wire is improved, and the flexibility and the elongation of the copper wire are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and particularly relates to an annealing furnace and process for improving the elongation rate of copper wire. Background Art

[0002] The elongation rate of copper wire is affected by many factors, including temperature, pressure, speed, lubrication, etc. Therefore, in the production process, it is necessary to pay attention to the influence of these factors on copper materials to ensure the stability and appropriateness of these factors during the production process. In order to improve the ductility of copper wire, it is necessary to control appropriate temperature and speed. Generally speaking, too high temperature will make the copper material brittle, while too low temperature will make the copper material hardened and the ductility decreases. At the same time, appropriate lubrication is required during the rolling process to reduce longitudinal splitting and transverse splitting, thereby improving the ductility of copper wire; after the copper wire conductor is cold-drawn, there is a hardening phenomenon, and the tensile strength and yield strength increase significantly. To eliminate the cold-drawing hardening phenomenon and improve the elongation rate, annealing treatment must be carried out to eliminate internal stress and defects and restore it to the physical and mechanical properties before cold working. In the field of wire and cable, the annealing methods used for conductor copper wire include: annealing furnace annealing, heat pipe annealing, contact brush transmission high-current annealing, and induction annealing, etc. Therefore, during the processing, it is necessary to reasonably control the processing temperature according to different copper wire materials and process requirements.

[0003] However, the temperature of the traditional annealing furnace can only be set at a constant temperature, resulting in a decrease in the elongation performance of copper wire. Moreover, since the copper wire is wound on the wire roller for heat treatment, the outer copper wire will be heated first and the inner copper wire will be heated later, resulting in uneven heating of the copper wire, thereby affecting the quality of copper wire annealing.

[0004] Therefore, the present invention provides an annealing furnace and process for improving the elongation rate of copper wire to solve the above problems. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an annealing furnace and process for improving the elongation rate of copper wire, effectively solving the problems that the temperature of the traditional annealing furnace can only be set at a constant temperature, resulting in a decrease in the elongation performance of copper wire; since the copper wire is wound on the wire roller for heat treatment, the outer copper wire will be heated first and the inner copper wire will be heated later, resulting in uneven heating of the copper wire, thereby affecting the quality of copper wire annealing.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] An annealing furnace for improving the elongation rate of copper wire, including a placement rack, at the top of the placement rack is fixedly installed an annealing furnace, inside the annealing furnace are provided a plurality of heating tubes, at the left end of the placement rack is fixedly installed a conveying rack, at the top of the conveying rack are provided a plurality of conveying rollers, on each conveying roller is provided copper wire, at the right end of the placement rack is fixedly installed a fixing rack, on the fixing rack are provided a plurality of winding wheels, one end of each copper wire passes through the corresponding heating tube and is connected to the winding wheel, on the placement rack is provided a cleaning device, and the cleaning device is arranged between the conveying rack and the annealing furnace.

[0008] Preferably; sliding doors are respectively installed at the left and right ends of the annealing furnace, between the tops of the two sliding doors is fixedly installed a cross bar, and on the cross bar is installed a telescopic rod.

[0009] Preferably; inside the annealing furnace is fixedly installed a cushion block, on the top of the cushion block are evenly and fixedly installed a plurality of stabilizing plates, on the top of each stabilizing plate is fixedly installed a fixing arc ring located below the heating tube, each fixing arc ring is arranged inside the corresponding heating tube, above each fixing arc ring is provided a sliding arc ring, the tops of the plurality of sliding arc rings are fixedly connected together by a synchronous rod, the top of the synchronous rod is rotatably installed with a lifting screw rod, and the thread of the lifting screw rod is installed on the top of the annealing furnace.

[0010] Preferably; the cleaning device includes a fixed vertical plate, at the top of the fixed vertical plate is fixedly installed a top plate, at the front and rear ends of the top plate are respectively fixedly installed side plates, on each side plate are opened two vertically symmetric rectangular holes, between the two rectangular holes on the same side is slidably installed a lifting plate, and on each lifting plate are evenly provided a plurality of cleaning components.

[0011] Preferably; on each sliding door are evenly opened a plurality of insertion holes, and each copper wire is arranged inside the corresponding insertion hole.

[0012] Preferably; at the top of the conveying rack is fixedly installed a cross plate, at the front and rear ends of the cross plate are respectively fixedly installed clamping plates, and the plurality of conveying rollers are arranged between the two clamping plates.

[0013] Preferably; at the top of the fixing rack is fixedly installed a connecting plate, at the front and rear ends of the connecting plate are respectively fixedly installed limiting plates, and the plurality of winding wheels are arranged between the two limiting plates.

[0014] Preferably; on the placement rack is provided a cooling bin, the cooling bin is arranged between the annealing furnace and the fixing rack, inside the cooling bin are provided cooling tubes, and at the top of the cooling bin are provided air outlet holes and a water inlet pipe.

[0015] Preferably, a convex plate is fixedly installed on each side plate, an adjusting screw rod is rotatably installed on each convex plate, convex blocks are fixedly installed at both ends of each lifting plate, the convex blocks are threadedly installed on the corresponding adjusting screw rods, a plurality of rectangular openings are evenly formed in each lifting plate, a rectangular block is installed inside each rectangular opening, an arc surface is formed on each rectangular block, a cleaning block is arranged on each arc surface, and a conveying screw rod is arranged inside each rectangular opening.

[0016] An annealing furnace process for improving the elongation rate of copper wire includes the following steps:

[0017] Step 1: The conveying rollers are installed on the left roller shaft, the winding wheels are installed on the right roller shaft, and one end of each copper wire passes through the through holes on the cooling chamber and the heating tubes and is finally fixedly connected to the corresponding conveying rollers.

[0018] Step 2: Rotate the two adjusting screw rods, and the two lifting plates approach each other until every two corresponding cleaning blocks clamp the copper wire.

[0019] Step 3: Start the contraction of the two telescopic rods, the cross bar drives the corresponding closing door to gradually move downward, the lower opening of each jack is inserted into the corresponding copper wire until the bottom surface of the closing door contacts the top surface of the placement rack, thus completing the closing of the annealing furnace.

[0020] Step 4: The blower blows air to the cooling pipes, the cold air cools the copper wire inside the cooling chamber, and finally the air is discharged through the air outlet holes.

[0021] Step 5: The controller energizes each heating tube, and the energized heating tube gradually heats up until the temperature of the heating tube rises to an appropriate level.

[0022] Step 6: The controller starts the motor to rotate, the three sprockets, the chain, the right roller shaft, and the left roller shaft rotate synchronously. At this time, the conveying rollers convey to the left, the heat-treated copper wire gradually moves out of the annealing furnace, the external air quickly cools the copper wire, and then the winding wheel quickly winds and winds the cooled copper wire.

[0023] Step 7: Remove the processed copper wire.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. By energizing and heating the heating tubes, the copper wire can be gradually heated for heat treatment. And because the heating tubes are of a spiral structure and the copper wire is arranged inside the heating tubes, the copper wire is heated more evenly, thus improving the annealing quality of the copper wire, increasing its flexibility and elongation rate, and making it more suitable for application scenarios that require high flexibility and good electrical conductivity.

[0026] 2. The lifting screw rod slides downward with the synchronous rod and multiple sliding arc rings until the sliding arc rings are combined onto the corresponding fixed arc rings. Since the sliding arc rings and the fixed arc rings are in a combined state, the stability of the copper wire temperature is maintained, and accordingly, the elongation rate of the copper wire is increased.

[0027] 3. Turn on the power supply, and the controller starts the blower. The blower blows air on the cooling pipe, and then the cold air cools the copper wire inside the cooling bin 28, enabling rapid cooling of the copper wire.

[0028] 4. When the copper wire is moving, the corresponding two cleaning blocks can clean the impurities on the copper wire, improving the quality of the copper wire during the heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional schematic of the present invention Figure 1 ;

[0030] Figure 2 is a three-dimensional schematic of the present invention Figure 2 ;

[0031] Figure 3 is a schematic diagram of the installation position of the synchronous rod of the present invention;

[0032] Figure 4 is of the present invention Figure 1 sectional schematic diagram;

[0033] Figure 5 is of the present invention Figure 2 sectional schematic diagram;

[0034] Figure 6 is a schematic diagram of the fixed arc ring and the sliding arc ring of the present invention;

[0035] Figure 7 is a schematic diagram of the structure of the lifting plate of the present invention;

[0036] Figure 8 is a schematic diagram of the installation position of the rectangular block of the present invention;

[0037] Figure 9 is of the present invention Figure 5 magnified schematic diagram at A in;

[0038] Figure 10 is of the present invention Figure 6 magnified schematic diagram at B in;

[0039] Figure 11 is of the present invention Figure 8 magnified schematic diagram at C in.

[0040] Markings in the figure: 1. Placing rack; 2. Annealing furnace; 3. Heating tube; 4. Conveyor rack; 5. Conveyor roller; 6. Copper wire; 7. Fixed rack; 8. Winding wheel; 9. Sealing door; 10. Cross bar; 11. Telescopic rod; 12. Cushion block; 13. Stabilizing plate; 14. Fixed arc ring; 15. Sliding arc ring; 16. Synchronous rod; 17. Lifting screw; 18. Fixed vertical plate; 19. Top plate; 20. Side plate; 21. Rectangular hole; 22. Lifting plate; 23. Insertion hole; 24. Cross plate; 25. Clamping plate; 26. Connecting plate; 27. Restricting plate; 28. Cooling bin; 29. Cooling tube; 30. Air outlet hole; 31. Water inlet pipe; 32. Convex plate; 33. Adjusting screw; 34. Convex block; 35. Rectangular opening; 36. Rectangular block; 37. Arc surface; 38. Cleaning block; 39. Conveyor lead screw. Specific embodiments

[0041] The following refers to Figures 1 to 11 to elaborate on the embodiments of the present invention in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0042] An annealing furnace for improving the elongation rate of copper wire, as Figure 1 , Figure 2 , Figure 6 shown, includes a placing rack 1. At the top end of the placing rack 1, an annealing furnace 2 is fixedly installed. The inside of the annealing furnace 2 has a structure that is open from left to right and is arranged at the left side position of the placing rack 1. Inside the annealing furnace 2, a plurality of heating tubes 3 are arranged. The heating tubes 3 are suitable existing spiral heaters or other suitable components, and each heating tube 3 is connected to a power source and a controller. The controller can set the temperature of the heating tube 3. At the left end of the placing rack 1, a conveyor rack 4 is fixedly installed. At the top end of the conveyor rack 4, a plurality of conveyor rollers 5 are rotatably arranged. Copper wire 6 is wound around the conveyor rollers 5. At the right end of the placing rack 1, a fixed rack 7 is fixedly installed. On the fixed rack 7, a plurality of winding wheels 8 are rotatably arranged. Each conveyor roller 5 and the winding wheel 8 on the same side are arranged in a left-right corresponding manner. The other end of each copper wire 6 passes through the inside of the corresponding heating tube 3 and is fixedly connected to the winding wheel 8. A cleaning device is arranged on the placing rack 1. The cleaning device can clean the impurities and dust on the copper wire 6. The cleaning device is arranged between the conveyor rack 4 and the annealing furnace 2;

[0043] The operator installs the placement rack 1 in a suitable area. One end of each copper wire 6 passes through the heating tube 3 and is finally fixedly connected to the corresponding winding wheel 8. After turning on the power, the controller energizes each heating tube 3. The energized heating tube 3 gradually heats up until the temperature of the heating tube 3 rises to an appropriate level. Due to the principle of heat transfer, the copper wire 6 also gradually heats up for heat treatment. Since the heating tube 3 is of a spiral structure and the copper wire 6 is arranged inside the heating tube 3, the copper wire 6 is heated more evenly, thereby improving the annealing quality of the copper wire 6;

[0044] At the same time, each winding wheel 8 is rotated. The heat-treated copper wire 6 gradually moves out of the annealing furnace 2. The external air rapidly cools the copper wire 6. Immediately afterwards, the winding wheel 8 rapidly winds and reels up the cooled copper wire 6. And the copper wire 6 that has not been heat-treated enters the interior of the heating tube 3 again for heat treatment. By continuously heat-treating and cooling the copper wire 6, the organizational structure of the copper wire 6 can be improved, defects and pores in the copper wire 6 can be eliminated, the density and uniformity of the copper wire 6 can be increased, and the residual stress generated by cold working can be removed after the copper wire 6 is heat-treated, thereby increasing its flexibility and elongation rate, making it more suitable for application scenarios that require high flexibility and good electrical conductivity.

[0045] As Figure 2 shown, rectangular sockets are respectively opened at the left and right top ends of the annealing furnace 2. A closing door 9 is slidably installed up and down inside each rectangular socket. The two closing doors 9 can close the two ends of the annealing furnace 2. A cross bar 10 is fixedly installed between the front sides of the tops of the two closing doors 9. A cross bar 10 is fixedly installed between the rear sides of the tops of the two closing doors 9. Telescopic rods 11 are respectively fixedly installed at the front and rear top ends of the annealing furnace 2. The telescopic end of each telescopic rod 11 is fixedly connected to the corresponding cross bar 10. The telescopic rod 11 is a suitable existing component, such as a hydraulic telescopic rod, and is connected to the controller and the power supply. A plurality of jacks 23 are evenly opened on each closing door 9. The lower end of the jack 23 is of an open structure. Each copper wire 6 is arranged inside the corresponding jack 23, and the copper wire 6 can freely slide inside the jack 23;

[0046] After the installation of each copper wire 6 is completed, the controller starts to contract the two telescopic rods 11. The cross bar 10 drives the corresponding closing door 9 to gradually move downward. The lower end opening of each jack 23 is inserted on the corresponding copper wire 6 until the bottom surface of the closing door 9 contacts the top surface of the placement rack 1, thus completing the closing of the annealing furnace 2 to maintain a constant temperature inside the annealing furnace 2 and at the same time preventing the heating tube 3 from being damaged.

[0047] As Figure 3 、 Figure 6As shown in the figure, a cushion block 12 is fixedly installed at the inner bottom of the annealing furnace 2. The cushion block 12 is arranged below a plurality of heating tubes 3. A plurality of stabilizing plates 13 are fixedly installed on the top end of the cushion block 12 evenly. Each stabilizing plate 13 is arranged corresponding to the heating tube 3 directly above it up and down. A vertical rod is fixedly installed at the top end of each stabilizing plate 13. A fixed arc ring 14 is fixedly installed at the top end of each vertical rod. Each heating tube 3 is arranged inside the corresponding fixed arc ring 14. Semi-circular blocking plates are fixedly installed at the left and right ends of the fixed arc ring 14 respectively. Semi-circular blocking plates are fixedly installed at the left and right ends of the sliding arc ring 15 respectively. An opening hole is formed on the blocking plate. A sliding arc ring 15 is arranged above each fixed arc ring 14. The sliding arc ring 15 is arranged above the heating tube 3. A synchronizing rod 16 is fixedly connected between the top ends of a plurality of sliding arc rings 15. The synchronizing rod 16 is slidably installed on the front and rear inner walls of the annealing furnace 2 up and down. A lifting screw 17 is rotatably installed at the top end of the synchronizing rod 16. A threaded hole is arranged at the top end of the annealing furnace 2. The lifting screw 17 is threadedly installed in the threaded hole of the annealing furnace 2. A crank is coaxially fixedly installed at the top end of the lifting screw 17;

[0048] The operator rotates the crank, and the lifting screw 17 drives the synchronizing rod 16 and a plurality of sliding arc rings 15 to slide upward synchronously. Then the operator holds the other end of the copper wire 6 and inserts it into the left end of the heating tube 3 until the copper wire 6 is fixedly installed on the corresponding take-up wheel 8. Then the operator rotates the crank in the reverse direction, and the lifting screw 17 drives the synchronizing rod 16 and a plurality of sliding arc rings 15 to slide downward until the sliding arc ring 15 is combined with the corresponding fixed arc ring 14, and the copper wire 6 is exactly located inside the opening hole of the blocking plate;

[0049] The power is turned on, and the controller energizes each heating tube 3. After being energized, the heating tube 3 gradually heats up until the temperature of the heating tube 3 rises to an appropriate level. Since the sliding arc ring 15 and the fixed arc ring 14 are in a combined state, the temperature stability of the copper wire 6 is maintained, and accordingly the elongation rate of the copper wire 6 is improved.

[0050] As Figure 6 、 Figure 7 As shown in the figure, the cleaning device includes a fixed vertical plate 18. The fixed vertical plate 18 is fixedly installed between the annealing furnace 2 and the conveying rack 4. A top plate 19 is fixedly installed at the top end of the fixed vertical plate 18. Side plates 20 are fixedly installed at the front and rear top ends of the top plate 19 respectively. Two vertically symmetric rectangular holes 21 are formed on each side plate 20. A lifting plate 22 is slidably installed up and down between the two upper rectangular holes 21. A lifting plate 22 is slidably installed up and down between the two lower rectangular holes 21. A plurality of cleaning components are arranged on each lifting plate 22 evenly.

[0051] As Figure 1As shown, a cross plate 24 is fixedly installed on the top end of the conveying frame 4. Clamping plates 25 are respectively fixedly installed at the front and rear top ends of the cross plate 24. A left roller shaft is detachably installed between the two clamping plates 25. The left roller shaft is installed on the clamping plate 25 using bolts. A plurality of conveying rollers 5 are detachably sleeved on the left roller shaft. A positioning key is fixedly installed on the conveying roller 5, and a keyway is formed on the left roller shaft. The positioning key is slidably installed inside the keyway.

[0052] As Figure 2 shown, a connecting plate 26 is fixedly installed on the top end of the fixing frame 7. Restricting plates 27 are respectively fixedly installed at the front and rear top ends of the connecting plate 26. A right roller shaft is detachably installed between the two restricting plates 27. The right roller shaft is installed on the restricting plate 27 using bolts. A plurality of winding wheels 8 are detachably sleeved on the right roller shaft. A positioning key is fixedly installed on the winding wheel 8, and a keyway is formed on the right roller shaft. The positioning key is slidably installed inside the keyway. Coaxial sprockets are respectively fixedly installed on the rear ends of the left roller shaft and the right roller shaft. A sprocket is rotatably installed at the rear end of the placing frame 1. Chains are connected between the three sprockets. A motor is fixedly installed on the placing frame 1. The rotating shaft of the motor is coaxially fixedly connected to one of the sprockets. The motor is connected to a controller and a power supply;

[0053] After turning on the power supply, the controller starts the motor to rotate. The three sprockets, the chain, the right roller shaft, and the left roller shaft rotate synchronously. At this time, the conveying roller 5 conveys to the left. The heat-treated copper wire 6 gradually moves out of the annealing furnace 2, and the external air rapidly cools the copper wire 6. Immediately afterwards, the winding wheel 8 rapidly winds and winds up the cooled copper wire 6, and the copper wire 6 that has not been heat-treated enters the inside of the heating tube 3 again for heat treatment. By continuously performing heat treatment and cooling on the copper wire 6, the organizational structure of the copper wire 6 can be improved, defects and pores in the copper wire 6 can be eliminated, and the density and uniformity of the copper wire 6 can be increased.

[0054] As Figure 1 、 Figure 5 shown, a cooling bin 28 is fixedly arranged on the placing frame 1. A plurality of through holes are respectively formed at the left and right ends of the cooling bin 28. Each through hole corresponds to the copper wire 6, and the copper wire 6 is inserted inside the corresponding through hole. A blower is fixedly installed inside the cooling bin 28. The blower is connected to the power supply and the controller. The cooling bin 28 is arranged between the annealing furnace 2 and the fixing frame 7. A cooling pipe 29 is fixedly arranged inside the cooling bin 28. The cooling pipe 29 is arranged above the blower. A plurality of air outlet holes 30 are arranged at the top end of the cooling bin 28. A water inlet pipe 31 is arranged at the right end of the cooling bin 28. A water outlet pipe is arranged at the left end of the cooling bin 28. One end of the cooling pipe 29 is fixedly connected to the water inlet pipe 31, and the other end is fixedly connected to the water outlet pipe. The other end of the water inlet pipe 31 is installed in a cold water pool, and the other end of the water outlet pipe is installed in a storage pool;

[0055] Turn on the power supply, the controller starts the fan, the fan blows air on the cooling pipe 29, the air instantly cools down after passing through the cooling pipe 29, then the cold air cools the copper wire 6 inside the cooling bin 28, and finally the air is discharged through the air outlet hole 30. This can quickly cool the copper wire 6 and facilitate the rapid winding of the winding wheel 8.

[0056] As Figure 7 , Figure 8 , Figure 10 , Figure 11 shown, a convex plate 32 is fixedly installed on the outer end of each side plate 20, an adjusting screw 33 is rotatably installed on each convex plate 32, the adjusting screw 33 can only rotate on the convex plate 32, the adjusting screw 33 is a bidirectional screw rod, and the threads on both sides are arranged in the opposite direction. A convex block 34 is fixedly installed at each end of each lifting plate 22, and each convex block 34 is threadedly installed on the corresponding adjusting screw 33. A plurality of rectangular openings 35 are evenly opened on each lifting plate 22, a chute is opened on each rectangular opening 35, a rectangular block 36 is detachably installed inside each rectangular opening 35, a threaded hole is opened on the rectangular block 36, a slider is fixedly installed on the rectangular block 36, and the slider is slidably installed inside the chute. An arc surface 37 is opened on the inner end of each rectangular block 36, a cleaning block 38 is fixedly installed on each arc surface 37 by screws, the cleaning block 38 is made of sponge or other suitable components, and a conveying screw rod 39 is arranged inside each rectangular opening 35, and the conveying screw rod 39 is rotatably connected to the lifting plate 22;

[0057] The operator holds the rectangular block 36 and installs it inside the rectangular opening 35, so that the slider is installed in the chute, the conveying screw rod 39 is threadedly installed inside the threaded hole, and each conveying screw rod 39 is rotated until the rectangular block 36 completely slides into the rectangular opening 35. When the installation of each rectangular block 36 is completed;

[0058] One end of each copper wire 6 is installed inside the corresponding cleaning block 38 and finally fixedly connected to the corresponding conveying roller 5. At the same time, the two adjusting screw rods 33 are rotated, and the two lifting plates 22 approach each other until every two corresponding cleaning blocks 38 clamp the copper wire 6. When the copper wire 6 is conveyed, the two cleaning blocks 38 can clean the impurities on the copper wire 6, improving the quality of the copper wire 6 during the heating process.

[0059] An annealing furnace process for improving the elongation rate of copper wire includes the following steps:

[0060] Step 1: The conveying roller 5 is installed on the left roller shaft, the winding wheel 8 is installed on the right roller shaft, and one end of each copper wire 6 passes through the through hole on the cooling bin 28 and the heating pipe 3 and is finally fixedly connected to the corresponding conveying roller 5;

[0061] Step 2: Rotate the two adjusting screws 33, and the two lifting plates 22 approach each other until each pair of corresponding cleaning blocks 38 clamp the copper wire 6;

[0062] Step 3: Start the contraction of the two telescopic rods 11. The cross bar 10 drives the corresponding closing door 9 to gradually move downward. The lower opening of each jack 23 is inserted onto the corresponding copper wire 6 until the bottom surface of the closing door 9 contacts the top surface of the placement rack 1, thus completing the closing of the annealing furnace 2;

[0063] Step 4: The blower blows air on the cooling pipe 29, and the cold air cools the copper wire 6 inside the cooling chamber 28. Finally, the air is discharged through the air outlet holes 30;

[0064] Step 5: The controller energizes each heating pipe 3, and the energized heating pipe 3 gradually heats up until the temperature of the heating pipe 3 rises to an appropriate level;

[0065] Step 6: The controller starts the motor to rotate. The three sprockets, chains, right roller, and left roller rotate synchronously. At this time, the conveying roller 5 conveys to the left, and the heat-treated copper wire 6 gradually moves out of the annealing furnace 2. The external air rapidly cools the copper wire 6, and then the winding wheel 8 rapidly winds and winds up the cooled copper wire 6;

[0066] Step 7: Remove the wound copper wire 6.

[0067] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or position relationships are based on the directions or position relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0068] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed installation, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0069] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. An annealing furnace for improving the elongation rate of copper wire, including a placement rack (1), characterized in that, At the top of the placement rack (1), an annealing furnace (2) is fixedly installed. Inside the annealing furnace (2), a plurality of heating tubes (3) are arranged. At the left end of the placement rack (1), a conveying rack (4) is fixedly installed. At the top of the conveying rack (4), a plurality of conveying rollers (5) are arranged. On each of the conveying rollers (5), a copper wire (6) is arranged. At the right end of the placement rack (1), a fixing rack (7) is fixedly installed. On the fixing rack (7), a plurality of winding wheels (8) are arranged. One end of each copper wire (6) passes through the corresponding heating tube (3) and is connected to the winding wheel (8). A cleaning device is arranged on the placement rack (1), and the cleaning device is arranged between the conveying rack (4) and the annealing furnace (2).

2. The annealing furnace for improving the elongation rate of copper wire according to claim 1, wherein At the left and right ends of the annealing furnace (2), closing doors (9) are slidably installed respectively. Between the tops of the two closing doors (9), a cross bar (10) is fixedly installed. An expansion rod (11) is installed on the cross bar (10).

3. The annealing furnace for improving the elongation rate of copper wires according to claim 2, wherein Inside the annealing furnace (2), a cushion block (12) is fixedly installed. On the top of the cushion block (12), a plurality of stabilizing plates (13) are uniformly fixedly installed. On the top of each stabilizing plate (13), a fixed arc ring (14) located below the heating tube (3) is fixedly installed. Each fixed arc ring (14) is arranged inside the corresponding heating tube (3). Above each fixed arc ring (14), a sliding arc ring (15) is arranged. Between the tops of the plurality of sliding arc rings (15), a synchronous rod (16) is fixedly connected. At the top of the synchronous rod (16), a lifting screw rod (17) is rotatably installed. The thread of the lifting screw rod (17) is installed on the top of the annealing furnace (2).

4. An annealing furnace for improving the elongation rate of copper wire according to claim 1, characterized in that, The cleaning device includes a fixed vertical plate (18). At the top of the fixed vertical plate (18), a top plate (19) is fixedly installed. At the front and rear ends of the top plate (19), side plates (20) are fixedly installed respectively. On each side plate (20), two vertically symmetric rectangular holes (21) are opened. Between the two rectangular holes (21) on the same side, a lifting plate (22) is slidably installed. On each lifting plate (22), a plurality of cleaning components are uniformly arranged.

5. The annealing furnace for improving the elongation rate of copper wire according to claim 2, wherein On each closing door (9), a plurality of jacks (23) are uniformly opened. Each copper wire (6) is arranged inside the corresponding jack (23).

6. An annealing furnace for improving the elongation rate of copper wire according to claim 1, characterized in that, At the top of the conveying rack (4), a cross plate (24) is fixedly installed. At the front and rear ends of the cross plate (24), clamping plates (25) are fixedly installed respectively. The plurality of conveying rollers (5) are arranged between the two clamping plates (25).

7. An annealing furnace for improving the elongation rate of copper wire according to claim 1, characterized in that, At the top of the fixing rack (7), a connecting plate (26) is fixedly installed. At the front and rear ends of the connecting plate (26), limiting plates (27) are fixedly installed respectively. The plurality of winding wheels (8) are arranged between the two limiting plates (27).

8. An annealing furnace for improving the elongation rate of copper wire according to claim 1, characterized in that, A cooling bin (28) is provided on the placement rack (1). The cooling bin (28) is arranged between the annealing furnace (2) and the fixing rack (7). A cooling pipe (29) is arranged inside the cooling bin (28). An air outlet hole (30) and a water inlet pipe (31) are arranged at the top end of the cooling bin (28).

9. An annealing furnace for improving the elongation rate of copper wire according to claim 4, characterized in that, A convex plate (32) is fixedly installed on each side plate (20). An adjusting screw rod (33) is rotatably installed on each convex plate (32). Convex blocks (34) are fixedly installed at both ends of each lifting plate (22). Each convex block (34) is threadedly installed on the corresponding adjusting screw rod (33). A plurality of rectangular openings (35) are evenly formed in each lifting plate (22). A rectangular block (36) is installed inside each rectangular opening (35). An arc surface (37) is formed on each rectangular block (36). A cleaning block (38) is arranged on each arc surface (37). A conveying screw rod (39) is arranged inside each rectangular opening (35).

10. A process for an annealing furnace to improve the elongation rate of copper wire according to any one of claims 1-9, comprising the following steps: Step 1: The conveying rollers (5) are installed on the left roller shaft, and the winding wheels (8) are installed on the right roller shaft. One end of each copper wire (6) passes through the through hole in the cooling bin (28) and the heating pipe (3) and is finally fixedly connected to the corresponding conveying roller (5). Step 2: Rotate the two adjusting screw rods (33), and the two lifting plates (22) approach each other until each two corresponding cleaning blocks (38) clamp the copper wire (6). Step 3: Start the contraction of the two telescopic rods (11). The cross bar (10) drives the corresponding closing door (9) to gradually move downward. The lower opening of each jack (23) is inserted on the corresponding copper wire (6) until the bottom surface of the closing door (9) contacts the top surface of the placement rack (1), thereby completing the closing of the annealing furnace (2). Step 4: The fan blows air on the cooling pipe (29), and the cold air cools the copper wire (6) inside the cooling bin (28). Finally, the air is discharged through the air outlet hole (30). Step 5: The controller energizes each heating pipe (3), and the energized heating pipe (3) gradually heats up until the temperature of the heating pipe (3) rises to an appropriate level. Step 6: The controller starts the motor to rotate, and the three sprockets, chains, right roller shaft, and left roller shaft rotate synchronously. At this time, the conveying roller (5) conveys to the left, and the heat-treated copper wire (6) gradually moves out of the annealing furnace (2). The external air rapidly cools the copper wire (6), and then the winding wheel (8) rapidly winds and winds the cooled copper wire (6). Step 7: Take the processed copper wire (6).

Images