Upward guiding device for continuous casting of copper rod

Abstract

The invention provides an up-drawing device for continuous casting of a copper rod, which comprises a crystallizer and an up-drawing assembly, the crystallizer is used for cooling copper liquid, so that the copper liquid is solidified into the copper rod; the upward guiding assembly is used for applying traction acting force to the copper rod, so that the copper rod is moved out of the crystallizer; the upward guiding assembly comprises a regulation and control assembly and a main traction assembly, the regulation and control assembly is connected with the crystallizer and can enable the crystallizer to move upwards so that the crystallizer can be separated from molten copper, the regulation and control assembly comprises a locking part and a reset spring, and the longitudinal moving hanging plate is connected with the upper end of the crystallizer; through the arrangement of the locking part, in case of sudden power failure, the crystallizer can be lifted upwards at the first time, so that the crystallizer is separated from a copper liquid level, the copper liquid level is prevented from continuously transferring heat to the crystallizer, and in the upward lifting process of the crystallizer, the distance between the crystallizer and the main traction assembly can be shortened; and the crystallizer is staggered and separated from an internal solidified copper shell and the like, so that heat of the solidified copper shell conducted into the crystallizer is reduced, and accidental dangers are avoided.

Description

Technical Field

[0001] This invention belongs to the field of copper rod continuous casting technology, specifically relating to an upward drawing device for copper rod continuous casting. Background Technology

[0002] The copper rod upward continuous casting method achieves efficient production of high-purity (purity ≥99.95%) and oxygen content (typically ≤20ppm) copper rods by drawing molten copper upward from the crystallizer and cooling and solidifying it. During the solidification of the copper liquid, the heat of the copper liquid is carried away by the high-speed flowing cooling water in the crystallizer.

[0003] However, in the existing technology, if there is a sudden power outage, the cooling water circulation of the water cooling system in the crystallizer may be interrupted. If there is high-temperature copper liquid in the crystallizer, the high-temperature copper liquid will conduct heat to the cooling water, and the water will instantly vaporize and expand, generating huge pressure, which can easily cause equipment damage and also affect the safety of workers in the environment. Summary of the Invention

[0004] The purpose of this invention is to provide an upward drawing device for continuous copper rod casting, which can separate the crystallizer from the high-temperature copper liquid in the event of a sudden power outage, thereby improving the safety of continuous copper rod casting operations.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is an upward drawing device for continuous casting of copper rods, comprising a crystallizer and an upward drawing assembly. The crystallizer is used to cool the molten copper and solidify it into a copper rod. The upward drawing assembly is used to apply a traction force to the copper rod and move it out of the crystallizer. The upward drawing assembly includes a control assembly and a main traction assembly. The control assembly is connected to the crystallizer and enables the crystallizer to move upward, thus separating the crystallizer from the copper liquid. The main traction assembly is used to clamp and position the copper rod and can apply force to the copper rod, causing it to move upward. The control assembly includes a longitudinal moving plate, a transverse support arm, a locking component, and a return spring. The longitudinal moving plate is connected to the upper end of the crystallizer; the transverse support arm is located below the longitudinal moving plate; the locking component is connected to the longitudinal moving plate and the transverse support arm, and can limit the distance between the longitudinal moving plate and the transverse support arm; the return spring is connected to the longitudinal moving plate, and can move the longitudinal moving plate away from the transverse support arm.

[0006] Furthermore, the upper traction assembly also includes a traction positioning frame, which is fixedly connected to the transverse support arm. The main traction assembly is connected to the traction positioning frame and located above the longitudinal moving plate.

[0007] Furthermore, the locking component includes an electromagnet actuator. When the electromagnet actuator is energized, it can lock the distance between the locking lateral support arm and the longitudinal moving plate. When the electromagnet actuator is de-energized, it can allow relative movement between the longitudinal moving plate and the lateral support arm.

[0008] Furthermore, the main traction assembly includes a positioning clamp group and a moving traction clamp group. The positioning clamp group can clamp and position the copper rod, while the moving traction clamp group can clamp the copper rod and move it upward. The positioning clamp group and the moving traction clamp group work alternately.

[0009] Furthermore, the positioning clamp assembly includes a fixed horizontal arm and a driven arm, with an upper clamp assembly installed at the end of the fixed horizontal arm; the driven arm is mounted on the fixed horizontal arm and connected to the upper clamp assembly. When the driven arm moves, it enables the upper chuck assembly to operate and clamp the copper rod.

[0010] Furthermore, the mobile traction clamp assembly includes an active arm and a lower clamp assembly. The active arm is capable of vertical movement. The lower clamp assembly is installed at the end of the active arm and located directly below the upper clamp assembly, enabling it to clamp the copper rod.

[0011] Furthermore, a guide arm is provided between the active arm and the fixed cross arm, and the upper end of the guide arm is coupled to the driven arm, so that the driven arm can be moved through the guide arm.

[0012] In a further improvement, the device also includes a clamping assembly, which can apply force to the copper rod to keep it vertical.

[0013] Furthermore, the clamping assembly includes an abutment guide arm and a movable clamping arm, the abutment guide arm being located on one side of the copper rod; the movable clamping arm being located on the other side of the copper rod and capable of applying a thrust to the copper rod to bring the copper rods into contact.

[0014] Furthermore, the movable clamping arm is connected to the main traction assembly, enabling the clamping assembly to work in conjunction with the main traction assembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are: by setting the locking component and the reset spring, in the event of a sudden power outage, the crystallizer can be lifted upwards immediately, so that the crystallizer is separated from the copper liquid surface, and the copper liquid surface is prevented from continuously transferring heat to the crystallizer; Because the solidified copper rod is held by the main traction component, the distance between the crystallizer and the main traction component is shortened during the upward lifting process. This causes the crystallizer to separate from the solidified copper shell inside, thereby reducing the heat conduction from the solidified copper shell into the crystallizer and avoiding accidental dangers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the crystallizer of the present invention; Figure 3 This is a schematic diagram of the main traction component structure of the present invention; Figure 4 This is a schematic diagram of the positioning clamp assembly structure of the present invention; Figure 5 This is a schematic diagram of the mobile traction clamp structure of the present invention; Figure 6 This is a schematic diagram of the guide arm structure of the present invention; Figure 7 This is a schematic diagram of the abutment guide arm structure of the present invention; Figure 8 This is a schematic diagram of the movable support arm structure of the present invention; Among them, 1-crystallizer, 2-graphite liner, 3-cooling jacket, 4-main cooling zone, 5-strong cooling zone, 6-outer shell, 7-traction positioning frame, 8-lateral support arm, 9-longitudinal moving plate, 10-insulating sleeve, 11-protective shell, 12-iron core, 13-armature, 14-reset spring, 15-fixed position horizontal arm, 16-active arm, 17-upper clamp, 18-lower clamp, 19-abutting guide arm, 20-lateral guide rail, 21-slide seat, 22-long strip protrusion, 23-moving close-fitting arm, 24-power rod, 25-pressure cap, 26-drive motor, 27-lead screw, 28-clamping arm, 29-strip opening, 30-slide groove, 31-slide column, 32-driven arm, 33-cylindrical rod, 34-upper rotating disk, 35-lower rotating disk. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] As an example, see Figures 1 to 2As shown, an upward drawing device for continuous casting of copper rods includes an upward drawing unit and a crystallizer 1. The crystallizer 1 is connected to the upward drawing unit and is located above the molten copper. The lower part of the crystallizer 1 is immersed in the molten copper. Then, a guide rod (commonly known as a "guide rod head") is inserted downward from the top of the crystallizer 1. After contacting the molten copper, the molten copper at the head quickly solidifies and combines with it. At this time, the auxiliary traction component on the upward drawing unit begins to pull the guide rod upward. The molten copper continuously solidifies under the action of the "chill" of the crystallizer 1 and is continuously pulled out with the guide rod to form a solid copper rod. Then, the guide rod can be separated from the upper part of the copper rod. Subsequently, the main traction component on the upward drawing unit will apply a traction force to the copper rod, causing the copper rod to move upward.

[0020] The crystallizer 1 mainly consists of the following parts, which are disassembled in order from the inside out: The first part is the graphite liner 2, which has a space inside that allows the molten copper to pass through. The graphite liner 2 is located at the innermost part of the crystallizer 1 and can be in direct contact with the high-temperature molten copper. The graphite liner 2 is mainly made of high-purity, high-thermal-conductivity, and high-strength graphite. The graphite liner 2 is provided with a forming cavity, which is a smooth hole type and usually has a slight taper to facilitate demolding after the copper rod is formed.

[0021] The second part is the cooling component, which is wrapped around the graphite liner 2. The cooling component exchanges heat with the graphite liner 2, removes the heat transferred from the graphite liner 2, cools the copper liquid inside the graphite liner 2, and finally causes the copper liquid to solidify to form a copper rod. Specifically, it includes a cooling jacket 3, which is a circular sleeve fitted onto the graphite liner 2. The cooling jacket 3 is made of copper or brass. Water channels are provided inside the cooling jacket 3, which surround the graphite liner 2 and can deliver cooling water into the water channels. The cooling water flows at high speed in the water channels, thereby carrying away the heat transferred from the graphite liner 2.

[0022] The water channels can be spiral or longitudinal, and regardless of whether they are spiral or longitudinal, they must be set around the central axis of the graphite liner 2.

[0023] The aforementioned water channel can consist of several independently circulating parts. For example, the water channel includes a main cooling zone 4, where cooling water flows at high speed. It also includes a strong cooling zone 5, located below the main cooling zone 4. The cooling effect of the strong cooling zone 5 is precisely concentrated in a very short area at the lower end of the graphite liner 2 (typically a range of several tens of millimeters above the part immersed in molten copper). Above this area, the graphite is not strongly cooled and its temperature is relatively high; below this area, the graphite is immersed in molten copper and its temperature is extremely high. Thus, within this short axial distance, the temperature of the graphite material drops sharply from nearly 1150°C to less than 100°C, creating a large temperature difference within a very short distance, resulting in a steep temperature gradient at the lower part of the graphite liner 2. When the molten copper enters the strong cooling zone 5, it comes into contact with the inner wall of the graphite liner 2. At this point, the heat of the molten copper is almost plundered and unidirectionally drawn away by the system formed by the combination of the graphite liner 2 and the cooling water. Near the graphite wall, the temperature of the molten copper is instantly reduced below the freezing point and it immediately solidifies. In the radial direction, a very steep temperature gradient is formed from the center of the copper rod to the edge: the center is high-temperature molten copper (>1083℃), and the edge is a solidified copper shell (close to water temperature). Then the copper rod enters the main cooling zone 4. At this point, there is a solidified outer shell on the surface of the copper rod. This solidified outer shell acts like a "thermal insulation pipe," encasing the high-temperature liquid core inside. At this point, through the continuous strong cooling of the main cooling zone 4, the heat is conducted inward through the solid shell. The purpose is to continuously remove the huge "latent heat of solidification" contained in the liquid core, so that the solidification front (solid / liquid interface) steadily advances from the outside to the inside until the entire cross-section is completely solidified.

[0024] The third part is the outer shell 6, which is the outermost structure of the crystallizer 1. It covers the cooling jacket 3 and can integrate components such as the water cooling jacket and the graphite liner 2 into a whole. Sealing components are provided at both the upper and lower ends of the outer shell 6, so that the bottom part in contact with the molten metal surface is also provided with sealing components, thereby maintaining the vacuum or protective atmosphere inside the crystallizer 1 and preventing air from entering. The sealing components can be O-rings, stuffing boxes, etc., which have high temperature resistance.

[0025] In this embodiment, refer to Figure 1 As shown, the upward traction unit includes a traction positioning frame 7, which is installed above the copper melt furnace. A control component is set on the traction positioning frame 7, and the crystallizer 1 is installed on the control component. The auxiliary traction component and the main traction component are located above the control component. The control component can control the crystallizer 1 to move vertically, so that the lower end of the crystallizer 1 can contact the copper melt surface.

[0026] The control component includes a horizontally arranged transverse support arm 8 with a through hole in the middle, through which the crystallizer 1 can pass. A longitudinal moving plate 9 is arranged above the transverse support arm 8, and an insulating sleeve 10 made of ceramic is fitted on the longitudinal moving plate 9. The insulating sleeve 10 has holes and is connected to the crystallizer 1. When the longitudinal moving plate 9 moves vertically, it can drive the crystallizer 1 to move longitudinally. When the lower end of the crystallizer 1 is coupled with the copper liquid surface, the distance between the longitudinal moving plate 9 and the transverse support arm 8 is small, forming an interval space between them. A locking component is arranged in this interval space to connect the transverse support arm 8 and the longitudinal moving plate 9. When the locking component is in the working state, the distance between the transverse support arm 8 and the longitudinal moving plate 9 is the minimum distance. The locking component is an electromagnet actuator. When the electromagnet actuator is energized, it can lock the distance between the transverse support arm 8 and the longitudinal lifting plate 9. The electromagnet actuator includes a protective housing 11, which is fixed on the transverse support arm 8. Inside the protective housing 11 is a coil, which is the source of the magnetic field generated after being energized. Inside the protective housing 11 is an iron core 12, which is made of magnetically conductive material. The iron core 12 is coupled with an armature 13, which is connected to an insulating sleeve 10 on the longitudinal lifting plate 9. When the armature 13 is coupled with the iron core 12, a small distance is maintained between the transverse support arm 8 and the longitudinal lifting plate 9. At this time, the lower end of the crystallizer 1 is inserted into the copper liquid surface. When the electromagnet actuator is energized, the cooperation between the copper rod iron core 12 and the armature 13 realizes the connection between the transverse support arm 8 and the longitudinal lifting plate 9, limiting the distance between them. A return spring 14 is provided in the interval space. One end of the return spring 14 is fixed to the transverse support arm 8. At the same time, a guide rod passes through the return spring 14 and passes through the longitudinal lifting plate 9. The other end of the return spring 14 is fixed to the longitudinal lifting plate 9. When the longitudinal lifting plate 9 is connected to the transverse support arm 8 through the electromagnet actuator, the return spring 14 is in a compressed state. An electric push rod is installed on the transverse support arm 8. The bottom end of the electric push rod is fixedly connected to the transverse support arm 8, and the output end is fixedly connected to the longitudinal lifting plate 9. When the electric push rod retracts as a whole, it can reduce the distance between the longitudinal lifting plate 9 and the transverse support arm 8 until the electromagnet actuator works. At this time, the electric push rod stops working. When the electromagnet actuator is energized, the electric push rod is in an open circuit state. Conversely, when the electric push rod is energized, the electromagnet actuator is in an open circuit state. In this way, when the electromagnet actuator is de-energized, the longitudinal lifting plate 9 will move away from the transverse support arm 8 under the restoring force of the return spring 14. Since the crystallizer 1 is connected to the longitudinal lifting plate 9, the crystallizer 1 can move accordingly when the longitudinal lifting plate 9 moves away from the transverse support arm 8. Since the longitudinal lifting plate 9 is located above the transverse support arm 8, the crystallizer 1 can move upward and separate from the copper liquid.

[0027] See Figure 1 , Figures 3 to 5 As shown in the example of this technical solution, the main traction assembly is used to pull the solidified copper rod, enabling it to be moved out of the crystallizer 1. Specifically, the main traction assembly includes a positioning clamp group and a moving traction clamp group. The positioning clamp group is located above the moving traction clamp group. During the traction operation of the copper rod, initially, the moving traction clamp group is located at the bottom position, at which point the vertical distance between the moving traction clamp group and the positioning clamp group reaches its maximum. Then, the moving traction clamp group clamps the copper rod and moves upward, achieving the first traction of the copper rod. During this process, the positioning clamp group... The positioning clamp does not hold the copper rod in place. When the moving traction clamp clamps the copper rod and moves upward until it couples with the positioning clamp, the positioning clamp clamp can hold and position the copper rod. At this point, the moving clamp releases the copper rod and controls the moving clamp to move downward to reset. When the moving clamp returns to the bottom position, it clamps the copper rod again. At this point, the positioning clamp releases the copper rod, and then the moving clamp moves upward to achieve a second traction on the copper rod. Repeating the above actions will achieve the traction of the copper rod.

[0028] See Figure 4 As shown in this embodiment, the positioning clamp group is used for temporary positioning of the copper rod. Specifically, it includes a fixed position cross arm 15 and an upper clamp assembly. The fixed position cross arm 15 is installed on the traction positioning frame 7 and the two are fixedly connected. The upper clamp assembly is installed on the free end of the fixed position cross arm 15. At this time, the fixed position cross arm 15 is at a fixed horizontal height, ensuring that the upper clamp assembly is kept in the designated position.

[0029] For the mobile traction clamp, please refer to... Figure 5 As shown, it specifically includes an active arm 16 and a lower chuck assembly. The active arm 16 is horizontally positioned and movably connected to the traction positioning frame 7, allowing the active arm 16 to move vertically. The lower chuck assembly is installed at the free end of the active arm 16, at which point the lower chuck assembly is located directly below the upper chuck assembly. The longitudinal movement of the active arm 16 can drive the lower chuck assembly to move. When the lower chuck assembly moves upward, it approaches the upper chuck assembly, applying traction force to the copper rod during this process. When the lower chuck assembly moves away from the upper chuck assembly, it is a preparatory action for the next traction of the copper rod.

[0030] Both the upper and lower chuck assemblies mentioned above include a chuck seat and a jaw. The jaw is hinged to the chuck seat and can swing around the hinge axis of the chuck seat. For easy distinction, the corresponding chuck seats are divided into upper chuck seat 17 and lower chuck seat 18 according to the different positions of the upper and lower chuck assemblies. Similarly, the jaws are divided into upper jaws and lower jaws. The upper jaws are hinged to each other, while the lower jaws are hinged to the lower chuck seat 18. A clamping component is provided between the positioning clamping group and the moving traction clamping group. The clamping component can keep the copper rod in a vertical state and allow the lower jaws to clamp the copper rod, forming a connection between the moving traction clamping group and the copper rod.

[0031] See Figure 1 , Figure 7 and Figure 8 As shown, the clamping assembly includes an abutment guide arm 19 and a transverse guide rail 20. The abutment guide arm 19 is connected to the transverse guide rail 20 via a slide block 21. The transverse guide rail 20 is parallel to the fixed transverse arm 15, allowing the abutment guide arm 19 to move laterally. A locking bolt is provided on the slide block 21. When the abutment guide arm 19 is adjusted to a designated position, the position of the slide block 21 can be locked by tightening the locking bolt, which also locks the position of the abutment guide arm 19. A long strip protrusion 22 is provided on the abutting guide arm 19. The long strip protrusion 22 extends along the length direction of the abutting guide arm 19 and can abut against the copper rod. At this time, the copper rod has been pulled out from the crystallizer 1, and the contact part between the copper rod and the long strip protrusion 22 forms a straight line. The clamping assembly in this embodiment also includes a movable clamping arm 23, which can apply force to the copper rod so that the copper rod contacts the elongated protrusion 22 on the abutment guide arm 19, thereby maintaining the stability of the copper rod during the pulling process. The elongated ridge 22 is made of graphite, and its comparison with commonly used metal materials yields the following results: Feature Dimension alumina ceramics graphite cast iron Stainless steel copper Surface smoothness It can be polished to a mirror finish with a medium coefficient of friction. It can be precisely machined to a very smooth surface with an extremely low coefficient of friction (self-lubricating). Medium and low castings have rough surfaces, which can be improved by finishing, but the coefficient of friction is high. It can be polished to a very smooth finish and has a medium coefficient of friction. It is highly easy to polish and has a smooth surface with a moderate coefficient of friction. Abrasion of copper rods Due to its extremely high hardness, it is easy to scratch the surface of the copper rod. It has a very low viscosity, is relatively soft, and is self-lubricating, which protects the copper rod. High surface hardness and microscopic roughness can easily lead to wear on copper rods. With medium to high hardness, the copper rod may wear down during prolonged operation. The material is soft, compatible with copper rods, and causes minimal wear. Self-wear resistance It has extremely high hardness and excellent wear resistance. Graphite is softer than metal, but its unique layered structure gives it a certain degree of wear resistance, which can be improved after impregnation. It is highly wear-resistant, but long-term friction with copper may produce abrasive particles. It has excellent wear resistance. It is easily scratched and worn. High temperature resistance It exhibits excellent physicochemical stability at high temperatures. Excellent performance in air, long-term use temperature is 400-600°C, exceeding which will cause oxidation. It grows easily at temperatures between 500-700°C and high temperatures, where it is prone to oxidation. Good temperature resistance at 800-1200°C (depending on the grade), with antioxidant properties. Its melting point is approximately 1085°C, and it is prone to softening and deformation at high temperatures. thermal conductivity medium to low High temperatures facilitate heat dissipation. middle Low (compared to copper and aluminum) Extremely high Mechanical strength It has high compressive strength, but is brittle and has poor impact resistance. It has medium compressive strength, high brittleness, and poor impact and tensile strength. It has high compressive strength, high rigidity, and good impact resistance. It has high strength, high toughness, and good overall mechanical properties. It has low strength but good toughness. Machinability The raw materials and manufacturing costs are high, and it is extremely difficult to process after molding. It has a moderate cost and can be used for precision machining such as turning, milling, and planing, but it will generate dust. It is low in cost and easy to cast and machine. It is cost-effective and easy to machine and weld. High cost (of the material itself), easy to process. Other key features Insulating, non-adhesive, and chemically inert. It is self-lubricating, has good thermal shock resistance (it is not easy to crack under rapid cooling and heating), and is conductive. It has good shock absorption, but it is prone to rust. It is corrosion resistant and has a good appearance. It has excellent electrical and thermal conductivity, but is easily oxidized and discolored. The above comparison shows that when the elongated ridge 22 is made of graphite, it can balance "low wear" and "high temperature resistance". It can protect the copper rod like a polymer material (low friction, self-lubricating) and withstand a fairly high temperature like ceramic. At the same time, it has good thermal conductivity: it helps to quickly conduct away the heat at the contact point and avoid local overheating, which is beneficial to the protection of itself and the copper rod.

[0032] See Figures 1 to 8As shown, in the above scheme, the movable close-fitting arm 23 is connected to the active arm 16, both of which are horizontally set. The active arm 16 is equipped with a horizontally telescopic power rod 24. The output end of the power rod 24 is connected to the movable close-fitting arm 23. Through the operation of the power rod 24, the movable close-fitting arm 23 can move horizontally. A pressure cap 25 is fixed at the front end of the movable close-fitting arm 23, which can press against the copper rod. A graphite sheet is connected to the surface of the pressure cap 35 that contacts the copper rod, and at the same time, the lower jaw clamps the copper rod. At this time, the movable traction clamping group is connected to the copper rod. A drive motor 26 is set on the traction positioning frame 7. A lead screw 27 is connected to the output shaft of the drive motor 26 and extends vertically. The lead screw 27 is connected to the active arm 16. When the drive motor 26 works, the active arm 16 can move longitudinally, thereby realizing the traction operation of the copper rod. To ensure that the copper rod can be clamped by the lower jaws and then moved upward, a longitudinal groove is provided on the guide arm 19. There are two longitudinal grooves and they are located on both sides of the elongated protrusion 22. During the process of the lower jaws clamping the copper rod and moving upward, the end of the lower jaws can enter into the longitudinal grooves and move within the longitudinal grooves.

[0033] The movable close-fitting arm 23 is connected to the lower gripper. During the horizontal movement of the movable close-fitting arm 23, the lower gripper can work. Specifically, the lower gripper includes two gripping arms 28. The inner ends of the two gripping arms 28 are hinged to the lower clamping seat 18. The lower clamping seat 18 is provided with two strip openings 29. The pressure cap 25 at the end of the movable close-fitting arm 23 is provided with two sliding pins 31. Each sliding pin 31 passes through the strip opening 29 on the corresponding side and is then connected to the corresponding gripping arm 28. For example, a sliding groove 30 is provided on the gripping arm 28. The upper end of the sliding pin 31 is located in the sliding groove 30. The sliding groove 30 is an arc-shaped extension. In this way, when the movable close-fitting arm 23 is moving horizontally, it can drive the sliding pin 31 to move, thereby adjusting the swing of the gripping arm 28.

[0034] It should be noted that in this technical solution, the upper clamp 17 and the lower clamp 18 have the same structure, and the lower jaw and the upper jaw have the same structure, working state and working principle. They both achieve the clamping operation of the copper rod by swinging the two clamping arms 28 in a direction that approaches each other.

[0035] A guide arm is connected between the movable traction clamp and the positioning clamp. The guide arm extends vertically and is connected to the movable close arm 23. When the movable close arm 23 moves horizontally, the guide arm can rotate. A driven arm 32 is connected to the upper end of the guide arm. The driven arm 32 is slidably connected to the fixed position horizontal arm 15. The end of the driven arm 32 is connected to the upper clamp assembly. When the driven arm 32 moves, the upper clamp assembly can clamp and position or release the copper rod.

[0036] See Figure 6As shown, the guide arm includes a cylindrical rod 33 and two rotating disks: an upper rotating disk 34 and a lower rotating disk 35. The upper rotating disk 34 is connected to the fixed horizontal arm 15, and the lower rotating disk 35 is connected to the active arm 16. Both rotating disks are rotatable. The upper rotating disk 34 has a circular opening for the cylindrical rod 33 to pass through, allowing the cylindrical rod 33 to pass through. At this time, the cylindrical rod 33 can move along the axial direction of the upper rotating disk 34, but the two disks must not touch. To facilitate rotation, an axially extending linear limiting groove is provided on the circumferential surface of the cylindrical rod 33, and a limiting protrusion is provided on the inner wall of the circular opening. When the cylindrical rod 33 passes through the circular opening, the limiting protrusion inside the circular opening engages with the linear limiting groove of the cylindrical rod 33. This enables the cylindrical rod 33 to move axially with the upper rotating disk 34 and allows both to rotate simultaneously. The lower end of the cylindrical rod 33 is connected to the lower rotating disk 35. When the lower rotating disk 35 rotates, it can drive the upper rotating disk 34 to rotate.

[0037] In this technical solution, both the movable close-fitting arm 23 and the driven arm 32 are provided with protruding teeth that extend along their length. Simultaneously, mating teeth are provided on the circumferential surface of the rotating disk, allowing the movable close-fitting arm 23 to mesh with the lower rotating disk 35 and the driven arm 32 to mesh with the upper rotating disk 34. When the movable close-fitting arm 23 moves towards the copper rod, the lower jaw grips the copper rod. During this process, the driven arm 32 can be moved away from the copper rod via the guide arm, causing the upper jaw to release the copper rod. Conversely, when the movable close-fitting arm 23 moves away from the copper rod, the lower jaw releases the copper rod while the upper jaw grips it. Therefore, in this technical solution, the movable close-fitting arm 23 and the driven arm 32 cannot move simultaneously in the same direction; they can only move synchronously and in opposite directions.

[0038] Finally, the auxiliary traction component in this technical solution includes a traction rope. One end of the traction rope is connected to the guide rod device, and the other end of the traction rope is connected to the power mechanism. The power mechanism can be a winding machine. When the winding machine is working, it is installed on the traction positioning frame 7 and can wind up the traction rope, thereby applying a traction force to the guide rod device.

[0039] In the technical solution of the present invention, by setting the electromagnet actuator, the crystallizer 1 can be lifted upwards immediately when a sudden power outage occurs. Since the solidified copper rod is held by the main traction component at this time, the distance between the crystallizer 1 and the main traction component can be shortened during the upward lifting process. At this time, the crystallizer 1 is separated from the solidified copper shell inside, thereby reducing the heat conduction of the solidified copper shell to the crystallizer 1 and avoiding accidental damage to the crystallizer 1.

[0040] Furthermore, in this technical solution, by adjusting the number of main traction components and enabling several main traction components to work in coordination, continuous traction of the copper rod can be achieved, avoiding jamming during the traction process and preventing surface damage to the copper rod.

[0041] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An upward drawing device for continuous casting of copper rods, characterized in that, include: The crystallizer (1) is used to cool the molten copper and solidify it into a copper rod. The upper drawing assembly is used to apply a traction force to the copper rod, so that the copper rod is removed from the crystallizer (1); The uplink component includes: The control component is connected to the crystallizer (1) and can move the crystallizer (1) upward to separate the crystallizer (1) from the copper liquid; The main traction assembly is used to clamp and position the copper rod, and can apply force to the copper rod to move it upward. The control component includes: The longitudinal moving plate (9) is connected to the upper end of the crystallizer (1); The lateral support arm (8) is located below the longitudinal moving plate (9); The locking component, connected to the longitudinal moving plate (9) and the transverse support arm (8), can limit the distance between the longitudinal moving plate (9) and the transverse support arm (8); The return spring (14) is connected to the longitudinal traverse plate (9) and can move the longitudinal traverse plate (9) away from the transverse support arm (8).

2. The upward drawing device for continuous casting of copper rods according to claim 1, characterized in that, The uplink component also includes: The traction positioning frame (7) is fixedly connected to the transverse support arm (8); The main traction assembly is connected to the traction positioning frame (7) and located above the longitudinal traction plate (9).

3. The upward drawing device for continuous casting of copper rods according to claim 1, characterized in that, The locking component includes: Electromagnetic actuator; When the electromagnet actuator is energized, it can lock the distance between the locking lateral support arm (8) and the longitudinal moving plate (9); When the electromagnet actuator is de-energized, it allows the longitudinal lifting plate (9) and the transverse support arm (8) to move relative to each other.

4. The upward drawing device for continuous casting of copper rods according to claim 1, characterized in that, The main traction component includes: The positioning clamp assembly can clamp and position the copper rod. The movable traction clamp can clamp the copper rod and move it upward. The positioning clamp and the moving traction clamp work alternately.

5. The upward drawing device for continuous casting of copper rods according to claim 4, characterized in that, The positioning clamp assembly includes: The fixed cross arm (15) is equipped with an upper clamp assembly at its end; The driven boom (32) is mounted on the fixed horizontal boom (15) and connected to the upper chuck assembly; When the driven arm (32) moves, the upper chuck assembly can operate to clamp the copper rod.

6. The upward drawing device for continuous casting of copper rods according to claim 5, characterized in that, The mobile traction clamp assembly includes: The active arm (16) is capable of vertical movement; The lower chuck assembly is installed at the end of the active arm (16) and located directly below the upper chuck assembly, and can clamp the copper rod through the lower chuck assembly.

7. The upward drawing device for continuous casting of copper rods according to claim 6, characterized in that: A guide arm is provided between the active arm (16) and the fixed horizontal arm (15). The upper end of the guide arm is coupled to the driven arm (32), and the driven arm (32) can be moved through the guide arm.

8. The upward drawing device for continuous casting of copper rods according to claim 1 or 4, characterized in that, Also includes: The clamping assembly can apply force to the copper rod to keep it in a vertical position.

9. The upward drawing device for continuous casting of copper rods according to claim 8, characterized in that, The clamping assembly includes: It rests against the guide arm (19) and is located on one side of the copper rod; The movable close arm (23) is located on the other side of the copper rod and can apply a pushing force to the copper rod so that the copper rod contacts the close arm (19).

10. The upward drawing device for continuous casting of copper rods according to claim 9, characterized in that, The movable clamping arm (23) is connected to the main traction assembly, enabling the clamping assembly to work in coordination with the main traction assembly.

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