A multi-process automatic production line for up-drawing copper rod production

Abstract

The application relates to the technical field of copper rod production, and discloses a multi-process automatic production line for copper rod production by the up-drawing method. The multi-process automatic production line for copper rod production by the up-drawing method comprises a bottom plate, a supporting frame is fixedly connected to the upper surface of the bottom plate, a smelting furnace is fixedly installed on the supporting frame, a heat preservation furnace is fixedly installed on the upper surface of the bottom plate, a supporting table is fixedly installed on the upper surface of the bottom plate, a die is installed on the upper surface of the supporting table, and a connecting pipe is connected between the heat preservation furnace and the die. A furnace opening is arranged at the hearth of the smelting furnace, a group of first electric push rods are fixedly installed on the supporting frame, a connecting frame is fixedly connected between the output ends of the group of first electric push rods, a cleaning rod is rotatably installed on the surface of the connecting frame, and a plurality of flexible metal bristles are arranged on the surface of the cleaning rod. Four weighing sensors are fixedly installed on the upper surface of the heat preservation furnace.

Description

Technical Field

[0001] This invention relates to the field of copper rod production technology, specifically to a multi-process automated production line for the production of copper rods using the upward drawing method. Background Technology

[0002] The top-drawing method, as the mainstream process for producing oxygen-free copper rods, is widely used in high-precision fields such as wires and cables and electronic components because it can produce high-purity, low-oxygen copper rods. The core processes of this method include copper smelting, copper liquid holding, and rod forming. Furnace cleaning and carbonization, lead wire threading, graphite flake addition in the holding furnace, and residue removal are key auxiliary processes to ensure production continuity and product quality.

[0003] In the current production of copper rods using the upward drawing method, the aforementioned auxiliary processes still largely rely on manual operation, resulting in numerous technical drawbacks: First, furnace cleaning requires manual operation with tools inserted into the high-temperature furnace opening, which is not only inefficient and incomplete but also poses a safety risk of burns. Furthermore, the addition of carbon material is entirely dependent on experience, leading to significant errors in dosage and directly affecting the deoxidation effect of the copper liquid, resulting in fluctuations in the purity of the copper rod. Second, wire threading requires manual operation to precisely thread the copper wire through the mold hole and fix it to the traction mechanism, which is cumbersome, time-consuming, and results in low rod start-up efficiency. Manual pulling can also easily deform the wire, causing rod jamming. Third, the addition of graphite flakes relies on manual pouring, making precise dosage control difficult and prone to clumping, blockage, or excessive accumulation. Excessive flake residue requires regular manual cleaning, which is not only labor-intensive but may also contaminate the copper liquid, affecting the surface quality and oxidation resistance of the copper rod. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-stage automated production line for the production of copper rods using the upward drawing method. It solves several problems: First, furnace cleaning requires manual operation with hand tools inserted into the high-temperature furnace opening, which is inefficient, incomplete, and poses a risk of burns. Furthermore, the addition of carbon material relies entirely on experience, leading to significant dosage errors that directly affect the deoxidation effect of the copper liquid and cause fluctuations in the purity of the copper rod. Second, wire threading requires manual, precise threading of the copper wire through the mold hole and fixing it to the traction mechanism, which is cumbersome, time-consuming, and results in low rod start-up efficiency. Manual pulling can also deform the wire, causing rod jamming. Third, graphite flake addition relies on manual pouring, making precise dosage control difficult and prone to clumping, blockage, or excessive accumulation. Excessive flake residue requires regular manual cleaning, which is not only labor-intensive but may also contaminate the copper liquid, affecting the surface quality and oxidation resistance of the copper rod.

[0005] The present invention provides the following technical solution: a multi-process automated production line for producing copper rods by the upward drawing method, comprising a base plate, a support frame fixedly connected to the upper surface of the base plate, a smelting furnace fixedly installed on the support frame, a heat preservation furnace fixedly installed on the upper surface of the base plate, a support platform fixedly installed on the upper surface of the support platform, a mold installed on the upper surface of the support platform, and a connecting pipe connecting the heat preservation furnace and the mold; The furnace chamber of the smelting furnace is provided with a furnace opening. A set of first electric push rods is fixedly installed on the support frame. A connecting frame is fixedly connected between the output ends of the set of first electric push rods. A cleaning rod is rotatably installed on the surface of the connecting frame. The surface of the cleaning rod is provided with multiple flexible metal bristles. Four weighing sensors are fixedly installed on the upper surface of the heat preservation furnace. A support plate is fixedly connected between the tops of the four weighing sensors. A storage hopper is fixedly installed on the upper surface of the support plate. A discharge pipe is connected between the bottom of the storage hopper and the heat preservation furnace. An electromagnetic valve is installed on the discharge pipe. A stirring assembly is installed inside the storage hopper. The upper surface of the base plate is provided with an automatic carbon feeding component, and the support platform is provided with an automatic wire guiding device.

[0006] Preferred technical solution 1: A first motor is fixedly connected to the surface of the connecting frame, and the output end of the first motor passes through the connected connecting frame and is fixedly connected to the cleaning rod.

[0007] This solution can improve ash removal efficiency and cleanliness, and ensure the service life of the smelting furnace.

[0008] Preferred technical solution 2: The stirring assembly includes a stirring rod rotatably installed inside the storage tank, a plurality of stirring plates are fixedly connected to the surface of the stirring rod, a second motor is fixedly connected to the upper surface of the storage tank, and the output end of the second motor extends into the interior of the storage tank and is fixedly connected to the stirring rod.

[0009] This solution can prevent graphite flakes from clumping and clogging, ensure uniform material feeding, and improve the oxygen barrier effect of copper liquid.

[0010] Preferred technical solution three: The automatic carbon feeding component includes a carbon storage box fixedly installed on the upper surface of the base plate, a carbon outlet pipe fixedly installed at the lower part of the carbon storage box, an opening on the upper surface of the carbon outlet pipe inside the carbon storage box, an auger rotatably installed inside the carbon outlet pipe, one end of the carbon outlet pipe being connected to the smelting furnace, a third motor fixedly connected to one end of the carbon outlet pipe, and the output end of the third motor extending into the interior of the carbon outlet pipe and fixedly connected to the auger.

[0011] This solution enables continuous quantitative delivery of carbon materials, preventing blockages and ensuring precise addition.

[0012] Preferred technical solution four: The automatic lead-in device includes a set of second electric push rods fixedly installed on the lower surface of the support platform. The output end of the set of second electric push rods is fixedly connected to a mounting box. The upper surface of the mounting box is provided with a movable groove. A bidirectional lead screw is rotatably installed inside the mounting box. Two lead screw sleeves are threaded onto the surface of the bidirectional lead screw. The upper surfaces of the two lead screw sleeves are fixedly connected with clamps. The two clamps can move within the movable groove.

[0013] This solution enables the clamping plate to clamp stably, replacing manual threading, significantly improving the efficiency of the rod guide, and reducing labor intensity.

[0014] Preferred technical solution five: A sliding rod is fixedly connected inside the mounting box, and two sliding sleeves are provided on the surface of the sliding rod. The two sliding sleeves are fixedly connected to the two lead screw sleeves respectively. A fourth motor is fixedly connected to the side of the mounting box, and the output end of the fourth motor is fixedly connected to the bidirectional lead screw.

[0015] This solution can precisely guide the lead wire through the slide bar and slide sleeve, ensuring the coaxiality of the lead wire and improving the alignment accuracy with the mold.

[0016] Preferred technical solution six: A set of third electric push rods is fixedly connected to the upper surface of the base plate, and a placement plate is fixedly connected between the output ends of the set of third electric push rods. A placement groove is opened on the upper surface of the placement plate, and a collection cover is placed inside the placement groove. The collection cover can be fitted onto the bottom end of the smelting furnace, and an ash outlet is opened at the bottom end of the smelting furnace.

[0017] This solution features an automatically lifting and lowering hood to prevent dust leakage, avoid manual contact with high-temperature equipment, and improve operational safety.

[0018] Preferred technical solution seven: A discharge pipe is connected between the smelting furnace and the holding furnace, and a valve is installed on the discharge pipe.

[0019] This solution enables sealed delivery of molten copper, precise valve control to prevent oxidation and leakage, and ensures production continuity and the stability of the molten copper.

[0020] Compared with the prior art, the present invention provides a multi-process automated production line for the production of copper rods using the upward drawing method, which has the following beneficial effects: (1) The multi-process automated production line for the production of copper rods by the upward drawing method integrates three major devices: ash removal and carbonization, automatic wire threading, and graphite scale control. It completely replaces traditional manual operation, greatly reduces labor intensity, and completely gets rid of the operational limitations caused by manual dependence.

[0021] (2) The multi-process automated production line for the production of copper rods by the upward drawing method achieves furnace cleaning and precise carbon replenishment through ash removal and carbon addition. The scale system completes quantitative addition and residue removal, avoiding errors and pollution risks from manual operation and ensuring the safety of the production environment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is an exploded view of the automatic carbon addition component structure of the present invention; Figure 4 This is a cross-sectional view of the internal structure of the storage tank of the present invention; Figure 5 This is a cross-sectional view of the internal structure of the mounting box of the present invention; Figure 6 This is an exploded view of the smelting furnace and placement tray structure of the present invention.

[0023] In the diagram: 1. Base plate; 2. Support frame; 3. Smelting furnace; 4. Holding furnace; 5. Support platform; 6. Mold; 7. First electric push rod; 8. Connecting frame; 9. Cleaning rod; 10. Weighing sensor; 11. Support plate; 12. Storage bin; 13. Discharge pipe; 14. First motor; 15. Stirring rod; 16. Stirring plate; 17. Second motor; 18. Carbon storage box; 19. Carbon discharge pipe; 20. Screw; 21. Third motor; 22. Second electric push rod; 23. Mounting box; 24. Bidirectional lead screw; 25. Lead screw sleeve; 26. Clamping plate; 27. Sliding rod; 28. Sliding sleeve; 29. ​​Fourth motor; 30. Third electric push rod; 31. Placement tray; 32. Collection cover; 33. Discharge pipe. Detailed Implementation

[0024] Please see Figures 1-6 , Example 1: A multi-process automated production line for producing copper rods by the upward drawing method includes a base plate 1, a support frame 2 fixedly connected to the upper surface of the base plate 1, a smelting furnace 3 fixedly installed on the support frame 2, a heat preservation furnace 4 fixedly installed on the upper surface of the base plate 1, a support platform 5 fixedly installed on the upper surface of the base plate 1, a mold 6 installed on the upper surface of the support platform 5, and a connecting pipe connecting the heat preservation furnace 4 and the mold 6. A furnace opening is provided in the furnace chamber of the smelting furnace 3. A set of first electric push rods 7 are fixedly installed on the support frame 2. A connecting frame 8 is fixedly connected between the output ends of the set of first electric push rods 7. A cleaning rod 9 is rotatably installed on the surface of the connecting frame 8. Multiple flexible metal bristles are provided on the surface of the cleaning rod 9. Four weighing sensors 10 are fixedly installed on the upper surface of the heat preservation furnace 4. A support plate 11 is fixedly connected between the tops of the four weighing sensors 10. A storage tank 12 is fixedly installed on the upper surface of the support plate 11. A discharge pipe 13 is connected between the bottom of the storage tank 12 and the heat preservation furnace 4. An electromagnetic valve is installed on the discharge pipe 13. A stirring assembly is installed inside the storage tank 12. An automatic carbon feeding assembly is provided on the upper surface of the base plate 1, and an automatic wire feeding device is provided on the support platform 5.

[0025] Example 2: The difference between this example and Example 1 is that a first motor 14 is fixedly connected to the surface of the connecting frame 8, and the output end of the first motor 14 passes through the connected connecting frame 8 and is fixedly connected to the cleaning rod 9.

[0026] Example 3: The difference between this example and Example 1 is that the stirring assembly includes a stirring rod 15 rotatably installed inside the storage tank 12, a plurality of stirring plates 16 are fixedly connected to the surface of the stirring rod 15, a plurality of through holes are opened on the surface of the stirring plates 16, a second motor 17 is fixedly connected to the upper surface of the storage tank 12, and the output end of the second motor 17 extends into the interior of the storage tank 12 and is fixedly connected to the stirring rod 15.

[0027] Example 4: The difference between this example and Example 1 is that the automatic carbon feeding component includes a carbon storage box 18 fixedly installed on the upper surface of the base plate 1. A carbon outlet pipe 19 is fixedly installed at the lower part of the carbon storage box 18. An opening is opened on the upper surface of the carbon outlet pipe 19 inside the carbon storage box 18. An auger 20 is rotatably installed inside the carbon outlet pipe 19. One end of the carbon outlet pipe 19 is connected to the smelting furnace 3. A third motor 21 is fixedly connected to one end of the carbon outlet pipe 19. The output end of the third motor 21 extends into the interior of the carbon outlet pipe 19 and is fixedly connected to the auger 20.

[0028] Example 5: The difference between this example and Example 1 is that the automatic lead-in device includes a set of second electric push rods 22 fixedly installed on the lower surface of the support platform 5. The output end of the set of second electric push rods 22 is fixedly connected to the mounting box 23. The upper surface of the mounting box 23 is provided with a movable groove. A bidirectional lead screw 24 is rotatably installed inside the mounting box 23. Two lead screw sleeves 25 are threaded onto the surface of the bidirectional lead screw 24. The upper surfaces of the two lead screw sleeves 25 are fixedly connected to clamps 26. The two clamps 26 can move within the movable groove.

[0029] Example 6: The difference between this example and Example 1 is that the mounting box 23 is internally fixedly connected to a slide rod 27, and the surface of the slide rod 27 is slidably fitted with two slide sleeves 28. The two slide sleeves 28 are fixedly connected to two lead screw sleeves 25 respectively. The side of the mounting box 23 is fixedly connected to a fourth motor 29, and the output end of the fourth motor 29 is fixedly connected to a bidirectional lead screw 24.

[0030] Example 7: The difference between this example and Example 1 is that a set of third electric push rods 30 are fixedly connected to the upper surface of the base plate 1, and a placement plate 31 is fixedly connected between the output ends of the set of third electric push rods 30. A placement groove is opened on the upper surface of the placement plate 31, and a collection cover 32 is placed inside the placement groove. The collection cover 32 can be fitted onto the bottom end of the smelting furnace 3, and an ash outlet is opened at the bottom end of the smelting furnace 3.

[0031] Example 8: The difference between this example and Example 1 is that a discharge pipe 33 is connected between the smelting furnace 3 and the holding furnace 4, and a valve is installed on the discharge pipe 33.

[0032] In summary, the control method and detailed connection means of the multi-process automated production line for producing copper rods by the upward drawing method are well-known technologies in the field. Those skilled in the art can connect all electrical components and their compatible power supplies through wires, and should select appropriate controllers according to actual conditions to meet control requirements. The detailed connection means and control scheme are well-known technologies in the field. The following mainly introduces the working principle and process, and will not explain the electrical control. At the same time, the bidirectional lead screw 24 and the lead screw sleeve 25 meet the self-locking conditions. During operation, copper is first melted in the smelting furnace 3. During melting, the first electric push rod 7 moves the connecting frame 8, causing the cleaning rod 9, carrying flexible metal bristles, to extend into the furnace chamber of the smelting furnace 3. This cleaning rod rotates and cleans the accumulated ash on the inner wall of the furnace. The resulting dust is discharged through the ash outlet at the bottom of the smelting furnace 3. At this time, a set of third electric push rods 30 on the bottom plate 1 drives the placement plate 31 to rise, causing the collection hood 32 in the placement trough to be fitted onto the bottom of the smelting furnace 3 to collect the dust. Simultaneously, the automatic carbon feeding assembly on the bottom plate 1 is activated, and the carbon material in the carbon storage box 18 falls into the pipe through the opening above the carbon outlet pipe 19. The third motor 21 drives the auger 20 to rotate, precisely conveying the carbon material into the smelting furnace 3 for deoxidation. After smelting, the valve on the discharge pipe 33 between the smelting furnace 3 and the holding furnace 4 is opened, allowing the molten copper to flow into the holding furnace 4 fixed on the bottom plate 1 for heat preservation. During the heat preservation process, the upper surface of the holding furnace 4... Four weighing sensors 10 monitor the weight of the storage tank 12 in real time via the support plate 11. When graphite flakes need to be added, the second motor 17 on the storage tank 12 drives the stirring rod 15 and the stirring plate 16 with through holes on the surface to stir the flakes to prevent clumping. Then, the electromagnetic valve on the discharge pipe 13 opens, and the flakes fall quantitatively into the heat preservation furnace 4. Before the start of the guide rod, a set of second electric push rods 22 on the lower surface of the support platform 5 pushes the mounting box 23 to move below the mold 6. The fourth motor 29 on the side of the mounting box 23 drives the bidirectional lead screw 24 to rotate, so that the two lead screw sleeves 25 with threaded connections on the surface drive the clamping plate 26 to move relative to each other along the movable groove under the guidance of the sliding rod 27 and the sliding sleeve 28, clamping the lead wire and accurately sending it into the mold 6 on the support platform 5. Finally, the copper liquid in the heat preservation furnace 4 flows into the mold 6 through the connecting pipe and is formed into an oxygen-free copper rod under the upward traction, completing the fully automated production process.

Claims

1. A multi-process automated production line for producing copper rods using the upward drawing method, comprising a base plate (1), characterized in that: A support frame (2) is fixedly connected to the upper surface of the base plate (1), a smelting furnace (3) is fixedly installed on the support frame (2), a heat preservation furnace (4) is fixedly installed on the upper surface of the base plate (1), a support platform (5) is fixedly installed on the upper surface of the base plate (1), a mold (6) is installed on the upper surface of the support platform (5), and a connecting pipe is connected between the heat preservation furnace (4) and the mold (6). The furnace chamber of the smelting furnace (3) is provided with a furnace opening. A set of first electric push rods (7) are fixedly installed on the support frame (2). A connecting frame (8) is fixedly connected between the output ends of the set of first electric push rods (7). A cleaning rod (9) is rotatably installed on the surface of the connecting frame (8). Multiple flexible metal bristles are provided on the surface of the cleaning rod (9). Four weighing sensors (10) are fixedly installed on the upper surface of the heat preservation furnace (4). A support plate (11) is fixedly connected between the tops of the four weighing sensors (10). A storage tank (12) is fixedly installed on the upper surface of the support plate (11). A discharge pipe (13) is connected between the bottom of the storage tank (12) and the heat preservation furnace (4). An electromagnetic valve is provided on the discharge pipe (13). A stirring assembly is provided inside the storage tank (12). The upper surface of the base plate (1) is provided with an automatic carbon feeding component, and the support platform (5) is provided with an automatic wire feeding device.

2. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 1, characterized in that: A first motor (14) is fixedly connected to the surface of the connecting frame (8), and the output end of the first motor (14) passes through the connected connecting frame (8) and is fixedly connected to the cleaning rod (9).

3. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 1, characterized in that: The stirring assembly includes a stirring rod (15) rotatably installed inside the storage tank (12), a plurality of stirring plates (16) are fixedly connected to the surface of the stirring rod (15), and a second motor (17) is fixedly connected to the upper surface of the storage tank (12). The output end of the second motor (17) extends into the interior of the storage tank (12) and is fixedly connected to the stirring rod (15).

4. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 1, characterized in that: The automatic carbon feeding assembly includes a carbon storage box (18) fixedly installed on the upper surface of the base plate (1). A carbon outlet pipe (19) is fixedly installed at the lower part of the carbon storage box (18). An opening is opened on the upper surface of the carbon outlet pipe (19) inside the carbon storage box (18). An auger (20) is rotatably installed inside the carbon outlet pipe (19). One end of the carbon outlet pipe (19) is connected to the smelting furnace (3). A third motor (21) is fixedly connected to one end of the carbon outlet pipe (19). The output end of the third motor (21) extends into the interior of the carbon outlet pipe (19) and is fixedly connected to the auger (20).

5. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 1, characterized in that: The automatic lead-in device includes a set of second electric push rods (22) fixedly installed on the lower surface of the support platform (5). The output end of the set of second electric push rods (22) is fixedly connected to a mounting box (23). The upper surface of the mounting box (23) is provided with a movable groove. A bidirectional lead screw (24) is rotatably installed inside the mounting box (23). Two lead screw sleeves (25) are threaded onto the surface of the bidirectional lead screw (24). The upper surfaces of the two lead screw sleeves (25) are fixedly connected with clamps (26). The two clamps (26) can move within the movable groove.

6. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 5, characterized in that: The mounting box (23) is fixedly connected to a slide rod (27). The surface of the slide rod (27) is provided with two slide sleeves (28). The two slide sleeves (28) are fixedly connected to the two lead screw sleeves (25) respectively. The side of the mounting box (23) is fixedly connected to a fourth motor (29). The output end of the fourth motor (29) is fixedly connected to the bidirectional lead screw (24).

7. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 1, characterized in that: A set of third electric push rods (30) are fixedly connected to the upper surface of the base plate (1). A placement plate (31) is fixedly connected between the output ends of the set of third electric push rods (30). A placement groove is provided on the upper surface of the placement plate (31). A collection cover (32) is placed inside the placement groove. The collection cover (32) can be fitted onto the bottom end of the smelting furnace (3). An ash outlet is provided at the bottom end of the smelting furnace (3).

8. The multi-process automated production line for producing copper rods using the upward drawing method according to claim 1, characterized in that: A discharge pipe (33) is connected between the smelting furnace (3) and the heat preservation furnace (4), and a valve is installed on the discharge pipe (33).

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