A continuous casting copper rod reducing drawing device and a drawing method

Abstract

The present application relates to copper rod processing technical field, especially to a kind of continuous casting copper rod reducing-drawing device and drawing method, including the rotary frame that reciprocating rotates on vertical plane, two mobile stations relatively located in the inside of the rotary frame and are set on each the mobile station spinning unit, copper rod passes through the gap between two the spinning unit and is transported, the rotary axis of the rotary frame coincides with copper rod transport axis line.By the present application, effectively solve the various disadvantages of traditional way processing copper rod, facilitate to extend the reducing-drawing interval of copper rod, make copper rod only carry out small range reducing-drawing within specified distance, reduce copper rod processing difficulty, and the continuity of this reducing-drawing interval can make copper rod once forming, simplify processing mode, improve efficiency;Using frictionless extrusion for copper rod transport direction and copper rod circumferential direction, can facilitate the protection of copper rod, avoid its wear, and the way of rolling can make copper rod more uniform, improve copper rod processing quality.

Description

Technical Field

[0001] This invention relates to the field of copper rod processing technology, and in particular to a continuous casting copper rod diameter-changing drawing device and drawing method. Background Technology

[0002] As a core basic material for industries such as power, electronics, and communications, the quality and specifications of continuously cast copper rods directly affect the performance of conductors, cables, and various electromagnetic components. With the continuous expansion of downstream application fields and the refinement of technology, the market has put forward higher and more diversified requirements for copper rod processing. Especially in the manufacturing of wires and cables, in order to meet the needs of different current levels, mechanical strengths, and laying environments, it is often necessary to process the initially sized continuously cast copper rods into wires of various diameters.

[0003] Traditional copper rod diameter reduction processing is mainly accomplished through a drawing process. The copper rod is passed through a circular hole of a specified size on a die, and the diameter of the copper rod is reduced by the compression of the inner wall of the hole. However, due to the friction between the inner wall of the hole and the copper rod, wear is easily caused on both the copper rod and the hole. The die cannot meet the requirements for long-term continuous operation. Furthermore, when it is necessary to produce copper rods of different specifications, multiple processing steps and multiple machines must be used in succession, or the die must be frequently changed on the same machine. This production method not only increases the transfer between processes and the investment in equipment, but also affects the continuity of the production process and the overall efficiency. Summary of the Invention

[0004] This invention provides a continuous casting copper rod diameter-changing drawing device and drawing method, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A continuous casting copper rod diameter-changing drawing device includes a rotating frame that reciprocates in a vertical plane, two moving platforms located opposite each other inside the rotating frame, and a spinning unit disposed on each of the moving platforms. The copper rod passes through the gap between the two spinning units and is conveyed. The rotation axis of the rotating frame coincides with the copper rod conveying axis. The movement trajectory of the moving platform within the rotating frame is perpendicular to the copper rod axis. In the circumferential direction of the copper rod, both the moving platform and the spinning unit are stationary relative to the outer wall of the copper rod.

[0007] The spinning unit includes a bracket, two drive columns rotatably mounted on the bracket, and a pressing belt that is driven on the two drive columns and presses the copper rod. The bracket is connected to the moving platform, and the vertical line connecting the two drive columns is inclined relative to the axis of the copper rod.

[0008] Furthermore, an auxiliary unit is provided between the two transmission columns. The auxiliary unit provides support for the portion of the extrusion belt that contacts the copper rod. The auxiliary unit is a pad or several auxiliary rollers arranged along the conveying direction of the extrusion belt.

[0009] Furthermore, the spinning unit also includes a secondary column, which is triangularly distributed with the two drive columns. The extrusion belt moves on the two drive columns and the secondary column, and the surface of the extrusion belt between the secondary column and the drive column closest to it is parallel to the axis of the copper rod.

[0010] Furthermore, the secondary column is connected to the adjacent transmission column by a number of telescopic rods, and the compression belt is kept taut by an elastic body disposed on the telescopic rods and providing elastic force to the secondary column.

[0011] Furthermore, the bracket and the movable platform are rotatably connected via a hinged column.

[0012] Furthermore, the telescopic rod is kept horizontal by a guide structure set on the moving platform. The guide structure includes a guide frame one fixed relative to the moving platform and a guide frame two sliding relative to the guide frame one. The guide frame two is slidably connected to the telescopic rod, and the sliding direction of the guide frame two on the telescopic rod is relatively inclined to the sliding direction of the guide frame two on the guide frame one.

[0013] Furthermore, a plurality of slots are provided on the movable platform that is close to the outer circumferential wall of the hinge column, and the slots are inclined along the circumferential direction of the hinge column.

[0014] The hinge column is hollow, and a plurality of guide platforms are arranged in the circumferential direction on the inner wall of the hinge column. A locking post is slidably arranged on the guide platform, and the end of the locking post slides through the hinge column and is inserted into the corresponding locking slot.

[0015] A straight toothed column is coaxially arranged inside the hinge column. The locking column is provided with a moving tooth that cooperates with the straight toothed column. The straight toothed column is provided with a plurality of locking blocks. The locking blocks are locked into the gap between the guide table and the adjacent locking columns. The end of the locking column on the guide table away from the inner wall of the hinge column abuts against the locking block. The straight toothed column and the hinge column are connected by an elastic body.

[0016] Furthermore, the movable platform is provided with a mounting platform, and the movable platform slides on the mounting platform. A helical gear column is rotatably provided on the mounting platform. The movable platform is provided with a power wheel and a drive plate. Both the power wheel and the drive plate are provided with helical teeth that cooperate with the helical gear column. The power wheel and the drive plate are respectively located on both sides of the helical gear column.

[0017] Furthermore, adjustment seats are slidably provided at both ends of the mounting platform, and the adjustment seats are slidably provided on the rotating frame via slide rails. The sliding direction of the adjustment seats on the rotating frame is perpendicular to the sliding direction of the mounting platform on the adjustment seats and is also perpendicular to the axis of the copper rod. The movable range of the mounting platform on the adjustment seats is divided into a working area where the spinning unit squeezes the copper rod and a transition area where the spinning unit and the copper rod move synchronously. The position of the mounting platform is adjusted by an adjustment cylinder.

[0018] A method for drawing a continuously cast copper rod with a variable diameter includes the following steps:

[0019] Adjust the tilt angle of the spinning unit on the moving table so that the projection length of the part of the extrusion band between the two transmission columns on the horizontal plane meets the length requirements of the deformation range of the copper rod.

[0020] Adjust the distance between the two spinning units so that the minimum distance between the two spinning units meets the requirements for the diameter change of the copper rod;

[0021] The copper rod is passed through the gap between the two spinning units and conveyed.

[0022] Since the distance between the two spinning units gradually decreases along the copper rod conveying direction, the two spinning units perform a squeezing process on the copper rod;

[0023] The copper rod drives the extrusion belt on the spinning unit to move on the two drive columns, so that the extrusion belt is stationary relative to the copper rod along the conveying direction of the copper rod;

[0024] The drive frame rotates around the circumference of the copper rod, and the drive table moves laterally within the frame. The frame and table move synchronously to drive the spinning unit. Along the circumference of the copper rod, the extrusion strip is relatively stationary with respect to the copper rod, and the spinning unit performs frictionless rolling and diameter-changing processing on the copper rod.

[0025] As the spinning unit moves from one side of the copper rod axis to the other, the rotating frame and the moving table move in opposite directions, repeating this process to achieve continuous variable diameter drawing of the copper rod.

[0026] The technical solution of this invention can achieve the following technical effects:

[0027] This method effectively solves the various drawbacks of traditional copper rod processing, facilitating the extension of the copper rod's diameter variation range. It allows the copper rod to undergo only small-scale diameter changes within a specified distance, reducing processing difficulty. Furthermore, the continuity of this diameter variation range enables the copper rod to be formed in a single step, simplifying the processing method and improving efficiency. The use of frictionless extrusion in both the copper rod's conveying direction and circumferential direction effectively protects the copper rod, preventing wear. The rolling process also ensures a more uniform copper rod shape, improving processing quality.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of a continuous casting copper rod diameter-changing drawing device;

[0031] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0032] Figure 3 for Figure 2 Schematic diagram of the moving platform and spinning unit;

[0033] Figure 4 for Figure 3 A structural diagram from another perspective;

[0034] Figure 5 for Figure 3 A schematic diagram of the structure of a China Mobile station;

[0035] Figure 6 for Figure 5 A partial structural diagram of a China Mobile station;

[0036] Figure 7 for Figure 6 A schematic diagram of the internal structure of the hinged column;

[0037] Figure 8 for Figure 7 A schematic diagram of the exploded structure;

[0038] Figure 9 for Figure 2 Schematic diagram of the cross-sectional structure of the rotating frame;

[0039] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure of the center panel;

[0040] Reference numerals: 100, rotating frame; 101, outer ring; 102, slide block; 103, drive motor; 104, drive wheel; 105, adjusting seat; 106, adjusting cylinder; 107, adjusting gear; 108, adjusting rack; 109, slide groove; 110, snap plate; 111, prism; 112, slide rail;

[0041] 200. Moving platform; 201. Mounting platform; 202. Helical gear column; 203. Drive wheel; 204. Drive plate;

[0042] 300. Spinning unit; 301. Support; 302. Drive column; 303. Extrusion belt; 304. Auxiliary roller; 305. Auxiliary column; 306. Telescopic rod; 307. Elastomer I; 308. Hinge column; 309. Guide frame I; 310. Guide frame II; 311. Slot; 312. Locking post; 313. Guide platform; 314. Actuating tooth; 315. Straight tooth column; 316. Locking block; 317. Elastomer II. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] like Figures 1 to 3 As shown, this application provides a continuous casting copper rod diameter changing drawing device, including a rotating frame 100 that reciprocates in a vertical plane, two moving platforms 200 located opposite each other inside the rotating frame 100, and spinning units 300 disposed on each moving platform 200. The copper rod passes through the gap between the two spinning units 300 and is conveyed. The rotation axis of the rotating frame 100 coincides with the copper rod conveying axis. The movement trajectory of the moving platform 200 within the rotating frame 100 is perpendicular to the copper rod axis. In the circumferential direction of the copper rod, both the moving platform 200 and the spinning unit 300 are relatively stationary relative to the outer wall of the copper rod.

[0046] The spinning unit 300 includes a bracket 301, two drive columns 302 rotatably mounted on the bracket 301, and a pressing belt 303 that is driven on the two drive columns 302 and presses the copper rod. The bracket 301 is connected to the moving table 200, and the vertical line between the two drive columns 302 is inclined relative to the axis of the copper rod.

[0047] Specifically, the rotating frame 100 can be used to support the moving table 200 and the spinning unit 300, and the movement trajectory of the rotating frame 100 is a reciprocating rotation along the copper rod conveying axis. That is, the rotating frame 100 rotates a specified number of times in the forward direction around the copper rod conveying axis, and then rotates in the reverse direction, repeating this process, so that the moving table 200 and the spinning unit 300 move in the same way, and the two spinning units 300 rotate around the circumference of the copper rod; to achieve the rotation of the rotating frame 100, such as Figure 2 As shown, several outer rings 101 are arranged on the outside of the rotating frame 100. Several sliding blocks 102 are slidably arranged on the inner wall of each outer ring 101 along the circumference of the outer ring 101. The sliding blocks 102 are connected to the rotating frame 100, thus providing support and guidance for the rotating frame 100. A drive motor 103 is arranged on the rotating frame 100, and a drive wheel 104 is arranged at the output end of the drive motor 103. The drive wheel 104 can roll on the inner wall of the outer rings 101. Thus, the drive motor 103 and the drive wheel 104 drive the rotating frame 100 to rotate. This mode is mainly suitable for rotating frames 100 that are not circular. In cases where the rotating frame 100 is circular, an arc-shaped guide rail can be provided at its bottom, allowing the rotating frame 100 to slide on the arc-shaped guide rail and thus rotate. The moving platform 200 can move within the rotating frame 100 in a direction perpendicular to the axis of the copper rod, and the moving platform 200 moves linearly relative to the rotating frame 100. Thus, when the rotating frame 100 and the moving platform 200 move simultaneously, the spinning unit 300 on the moving platform 200 and the outer wall of the copper rod in the circumferential direction can remain relatively stationary. This achieves a frictionless synchronous movement effect between the spinning unit 300 and the copper rod in the circumferential direction.

[0048] The extruded strip 303 can be a steel strip or other structure with a certain degree of hardness and elastic deformation capability.

[0049] The bracket 301 on the spinning unit 300 can provide support for the two drive columns 302 and the extrusion belt 303. The extrusion belt 303 can be driven on the two drive columns 302. Thus, when the extrusion belt 303 contacts the copper rod, along the conveying direction of the copper rod, the copper rod can use friction to drive the extrusion belt 303 to rotate on the two drive columns 302, achieving a frictionless synchronous motion effect between the extrusion belt 303 and the copper rod. The line connecting the two drive columns 302 is inclined along the axis of the copper rod, so the extrusion belt 303 is inclined relative to the copper rod, which can make the distance between the two extrusion belts 303 gradually decrease along the conveying direction of the copper rod.

[0050] In use, the copper rod is passed through the gap between the two extrusion belts 303 and continuously conveyed. As the distance between the two extrusion belts 303 gradually decreases, the two extrusion belts 303 can extrude the copper rod, causing the thickness of the copper rod to gradually decrease along the line connecting the two extrusion belts 303. At the same time, due to the friction between the copper rod and the extrusion belts 303, the extrusion belts 303 move on the two transmission columns 302, achieving a frictionless effect between the extrusion belts 303 and the copper rod along the conveying direction. The rotating frame 100 is rotated, and the moving table 200 moves within the rotating frame 100. The spinning unit 300 moves synchronously with the rotating frame 100 and the moving table 200. In the circumferential direction of the copper rod, the extrusion belts 303 and the copper rod are relatively stationary, thereby achieving a frictionless, circumferential rolling effect on the copper rod. Combining the two frictionless effects, wear can be avoided, and the copper rod can be easily protected. At the same time, the circumferential rolling method can make the copper rod deform evenly in the circumferential direction, avoiding stress concentration.

[0051] It should be noted that, since the moving platform 200 actively moves within the rotating frame 100 when the rotating frame 100 is rotating, the two moving platforms 200 can avoid rotating the copper rod through the two spinning units 300 to achieve the active driving rolling effect on the copper rod; however, if the movement of the moving platform 200 relies on the copper rod and friction, then the two spinning units 300 are likely to flatten the copper rod and carry it in a torsional motion.

[0052] The technical solution of this invention effectively solves the various drawbacks of traditional copper rod processing methods, making it convenient to extend the diameter change range of the copper rod. This allows the copper rod to undergo only small-range diameter changes within a specified distance, reducing the processing difficulty. Furthermore, the continuity of this diameter change range enables the copper rod to be formed in one step, simplifying the processing method and improving efficiency. By using a frictionless extrusion method in both the copper rod conveying direction and the circumferential direction, the copper rod can be easily protected to avoid wear. Moreover, the rolling process can make the copper rod more uniform, improving the processing quality.

[0053] Furthermore, because the extrusion belt 303 has a certain degree of elasticity, when it comes into contact with the copper rod, the extrusion effect of the extrusion belt 303 on the copper rod is reduced due to its own characteristics. That is, the working surface of the extrusion belt 303 cannot remain flat, and the copper rod will extrude the working surface of the extrusion belt 303 into an arc shape. This results in unequal deformation of the copper rod in different sections along the copper rod conveying direction. To solve this problem, such as... Figure 3 As shown, an auxiliary unit is provided between the two drive columns 302. The auxiliary unit provides support for the part of the extrusion belt 303 that is in contact with the copper rod. The auxiliary unit is a pad or a number of auxiliary rollers 304 arranged along the conveying direction of the extrusion belt 303.

[0054] When the auxiliary unit is a pad, the pad can use its own plane to support and guide the working surface of the extrusion belt 303, so that the working surface remains flat. The extrusion belt 303 can provide uniform deformation force to the copper rod. Since the extrusion belt 303 needs to move continuously, in order to reduce the friction between the extrusion belt 303 and the pad, lubricating oil can be sprayed on the inner wall of the extrusion belt 303 or on the pad.

[0055] When there are several auxiliary rollers 304, the auxiliary rollers 304 can support multiple positions on the working surface of the extrusion belt 303, and the two adjacent support points are close to each other. Combined with the fact that the extrusion belt 303 itself has a certain degree of hardness, the working surface of the extrusion belt 303 can be kept flat, and the extrusion belt 303 can drive the auxiliary rollers 304 to rotate, thereby avoiding friction between the extrusion belt 303 and the auxiliary unit.

[0056] Furthermore, the spinning unit 300 also includes a secondary column 305, which is triangularly distributed with the two drive columns 302. The extrusion belt 303 moves on the two drive columns 302 and the secondary column 305, and the surface of the extrusion belt 303 between the secondary column 305 and the drive column 302 closest to it is parallel to the axis of the copper rod.

[0057] The auxiliary column 305 can be located between the two drive columns 302, or as follows: Figure 3 As shown, the auxiliary column 305 is located outside the two transmission columns 302. It is acceptable as long as the auxiliary column 305 and the two transmission columns 302 are arranged in a triangle. Taking the auxiliary column 305 located outside the two transmission columns 302 as an example, the part of the extrusion band 303 between the two transmission columns 302 is a hypotenuse of the triangle, and the part of the extrusion band 303 between the auxiliary column 305 and the adjacent transmission column 302 is a horizontal side of the triangle. The hypotenuse is used to extrude the copper rod and change its diameter, while the horizontal side is used to hold the copper rod under pressure, so that the copper rod after rolling and drawing is held for a certain period of time under the specified gap to prevent the copper rod from rebounding.

[0058] Based on the above implementation, in order to keep the extrusion belt 303 taut, the following can be used: Figure 3 As shown, the secondary column 305 is connected to its adjacent transmission column 302 by several telescopic rods 306, and the extrusion belt 303 is kept taut by an elastic body 307 provided on the telescopic rods 306 and providing elastic force to the secondary column 305. The telescopic rods 306 can connect the secondary column 305 and its adjacent transmission column 302. The two ends of the elastic body 307 are respectively connected to the fixed end and the movable end of the telescopic rod 306. Thus, the elastic body 307 provides an elongating elastic force to the telescopic rod 306, and the telescopic rod 306 can provide a thrust to the secondary column 305. In this way, the secondary column 305 supports the extrusion belt 303 and prevents it from bending and deforming. In some embodiments, part of the extrusion belt 303 between the secondary column 305 and its adjacent transmission column 302 can also be supported by an auxiliary unit.

[0059] Furthermore, the bracket 301 and the moving platform 200 are rotatably connected via the hinge column 308.

[0060] By utilizing the characteristic that the bracket 301 can rotate on the moving table 200, the tilt angle of the working surface of the extrusion belt 303 can be changed, thereby changing its projected length on the horizontal plane, which facilitates the adjustment of the length of the copper rod rolling zone.

[0061] Furthermore, the telescopic rod 306 is kept horizontal by a guide structure set on the moving platform 200. The guide structure includes a guide frame 309 fixed relative to the moving platform 200 and a guide frame 310 sliding relative to the guide frame 309. The guide frame 310 is slidably connected to the telescopic rod 306, and the sliding direction of the guide frame 310 on the telescopic rod 306 is relatively inclined to the sliding direction of the guide frame 310 on the guide frame 309.

[0062] When the bracket 301 rotates on the moving platform 200, the portion of the compression band 303 between the auxiliary column 305 and its adjacent transmission column 302 moves synchronously. At this time, this portion of the compression band 303 changes from a horizontal state to an inclined state, meaning it can no longer provide pressure retention for the copper rod. To avoid this, a guide structure can be used to guide the telescopic rod 306, thereby keeping the telescopic rod 306 horizontal, and consequently keeping the portion of the compression band 303 between the auxiliary column 305 and its adjacent transmission column 302 horizontal. Figure 4 As shown, guide frame 309 can be installed on the moving table 200 at an angle or horizontally. Guide frame 310 slides horizontally or at an angle on guide frame 309. Telescopic rod 306 slides horizontally or at an angle on guide frame 310. Thus, the relative sliding relationship between guide frame 310 and guide frame 309 and telescopic rod 306 is used to guide telescopic rod 306, so that telescopic rod 306 only moves in the vertical plane without rotating. At this time, the direction of telescopic rod 306 remains unchanged, that is, the pressure holding area of ​​the extrusion belt 303 always remains horizontal.

[0063] Furthermore, such as Figures 6 to 8 As shown, a number of slots 311 are provided on the movable stage 200 which is close to the outer circumferential wall of the hinge column 308, and the slots 311 are inclined along the circumferential direction of the hinge column 308.

[0064] The hinge post 308 is hollow, and a number of guide platforms 313 are arranged in the circumferential direction on the inner wall of the hinge post 308. A locking post 312 is slidably arranged on the guide platform 313. The end of the locking post 312 slides through the hinge post 308 and is inserted into the corresponding locking slot 311.

[0065] A straight toothed post 315 is coaxially arranged inside the hinge post 308. A latching post 312 is provided with a moving tooth 314 that works with the straight toothed post 315. A number of latching blocks 316 are provided on the straight toothed post 315. The latching blocks 316 are engaged in the gap between the guide table 313 and the adjacent latching post 312. The end of the latching post 312 on the guide table 313 away from the inner wall of the hinge post 308 abuts against the latching block 316. The straight toothed post 315 and the hinge post 308 are connected by an elastic body 317.

[0066] Specifically, several slots 311 are arranged around the circumference of the outer wall of the hinge post 308, with the openings of the slots 311 facing the outer wall of the hinge post 308. This allows the ends of the locking pins 312 on the hinge post 308 to slide into the slots 311, thus achieving a locking connection between the moving platform 200 and the hinge post 308. When the locking pins 312 are removed from the slots 311, the moving platform 200 can rotate freely on the hinge post 308, meaning the spinning unit 300 can rotate on the moving platform 200. After the tilt angle of the spinning unit 300 is adjusted, the locking pins 312 are slid back into the corresponding slots 311. The hinge post 308 is fixed relative to the bracket 301, and the hinge post 308 passes through the moving platform 200 and rotates relative to it. When the spinning unit 300 presses the copper rod, the… Due to the limitation of the shortest distance between the two spinning units 300, the copper rod will provide a force to the spinning unit 300 that can drive the spinning unit 300 to generate a horizontal force. That is, the working surface on the extrusion belt 303 will have a tendency to rotate in the horizontal direction. By using the inclined setting of the slot 311, a force along its length can be provided to the locking post 312 in combination with the movement tendency of the extrusion belt 303. This allows the locking post 312 to provide stronger support and locking effect for the moving table 200 through the slot 311. However, if the slot 311 is along the radial direction of the hinge post 308, the relative movement tendency of the hinge post 308 and the moving table 200 will generate a shear force on the locking post 312. This type of force is easy to deform the locking post 312, so the support strength of this type is relatively low.

[0067] The guide table 313 provides guidance and support for the locking pin 312. When the locking pin 312 is inserted into the locking slot 311, the end of the locking pin 312 on the inner side of the hinge pin 308 is flush with the side wall of the guide table 313. At this time, the locking block 316 will engage the end of one locking pin 312 and the side wall of the adjacent locking pin 312, and the side wall of the guide table 313 will restrict the locking block 316, preventing the locking pin 312 from sliding, thereby achieving a locking effect. When it is necessary to adjust the hinge... When the relative angle between the column 308 and the moving stage 200 is reached, the straight tooth column 315 is pushed to pull out the locking block 316 and stop the locking operation of the locking column 312. Then the straight tooth column 315 is rotated, and the locking column 312 is driven to slide by the meshing connection between the straight tooth column 315 and the actuating tooth 314. The elastic body 317 can provide a reset elastic force for the straight tooth column 315. An outer edge for limiting the locking block 316 and the locking column 312 is provided on the side wall of the locking block 316.

[0068] Furthermore, such as Figure 5 As shown, a mounting platform 201 is provided on the movable platform 200, and the movable platform 200 slides on the mounting platform 201. A helical gear column 202 is rotatably provided on the mounting platform 201. A power wheel 203 and a drive plate 204 are provided on the movable platform 200. Both the power wheel 203 and the drive plate 204 are provided with helical teeth that cooperate with the helical gear column 202. The power wheel 203 and the drive plate 204 are located on both sides of the helical gear column 202.

[0069] The drive plate 204 can be powered by a motor. The drive plate 204 drives the helical gear column 202 to rotate through the helical gear on it, thereby causing the helical gear column 202 to push the power wheel 203 to move. The power wheel 203 then drives the moving table 200 to move on the mounting table 201. The way that the drive plate 204 and the power wheel 203 are respectively set on both sides of the helical gear column 202 allows the power wheel 203 to have a longer movement path on the helical gear column 202, avoiding the drive plate 204 from obstructing the power wheel 203. At the same time, this can save space. If the internal space of the rotating frame 100 is large enough, the motor can also be set at the end of the helical gear column 202.

[0070] Furthermore, such as Figures 9 to 10 As shown, adjustment seats 105 are slidably arranged at both ends of the mounting platform 201, and the adjustment seats 105 are slidably arranged on the rotating frame 100 via the slide rail 112. The sliding direction of the adjustment seats 105 on the rotating frame 100 is perpendicular to the sliding direction of the mounting platform 201 on the adjustment seats 105 and is perpendicular to the axis of the copper rod. The active range of the mounting platform 201 on the adjustment seats 105 is divided into the working area where the spinning unit 300 squeezes the copper rod and the transition area where the spinning unit 300 and the copper rod move synchronously. The position of the mounting platform 201 is adjusted by the adjusting cylinder 106.

[0071] The adjusting cylinder 106 can push the mounting platform 201 to slide on the adjusting seat 105. When the spinning unit 300 is normally extruding the copper rod, the mounting platform 201 is stationary on the adjusting seat 105. The adjusting cylinder 106 positions the mounting platform 201. When the copper rod approaches one side of the extrusion strip 303 in the width direction, the rotating frame 100 needs to rotate in the opposite direction. At this time, due to inertia, the rotating frame 100 needs to decelerate first, and then accelerate in the opposite direction until its speed reaches the predetermined value. During this process, the spinning unit 300 will follow... The rotating frame 100 moves synchronously, so it cannot effectively compress the copper rod. At this time, the adjusting cylinder 106 can drive the mounting platform 201 and the spinning unit 300 to move synchronously with the copper rod. During this period, the spinning unit 300 moves to the transition area on the mounting platform 201 and is in an idle transition state. When the rotating frame 100 moves in the opposite direction and returns to normal speed, the adjusting cylinder 106 pushes the mounting platform 201 from the transition area to the working area, thereby realizing the smooth transition of the copper rod when the rotating frame 100 changes direction and avoiding processing omissions on the copper rod.

[0072] Since the adjusting seat 105 can move within the rotating frame 100 via the slide rail 112, the distance between the two spinning units 300 can be adjusted, thereby adjusting the copper rod drawing diameter. To adjust the position of the adjusting seat 105, a cylinder or other pushing structure can be installed on the inner wall of the rotating frame 100, or alternatively, a method such as... Figure 10 The structure shown includes an adjusting gear 107 positioned between two adjusting seats 105 on the same side of the two mounting platforms 201. The adjusting gear 107 is rotatably mounted on the rotating frame 100. Two adjusting racks 108 are meshed on the adjusting gear 107, and each rack 108 is connected to one of the two adjusting seats 105. Each rack 108 has a groove 109. A prism 111 slides through the middle of the adjusting gear 107 and is connected to the rotating frame 100 via a spring. A retaining plate 110 is located at the end of the prism 111. The prism 111 and retaining plate 110 rotate relative to each other, and a portion of the retaining plate 110 can slide into the two grooves 109 on the two adjusting racks 108. Within the 09 groove, a toothed area is provided on the plate 110 between the two adjusting racks 108, which meshes with the teeth on the two adjusting racks 108. This toothed area restricts the two adjusting racks 108, preventing them from moving. When it is necessary to adjust the position of the adjusting seat 105 on the slide rail 112, the prism 111 is pushed to move, causing it to lift the plate 110. The toothed area on the plate 110 separates from the teeth on the adjusting racks 108, and part of the plate 110 remains within the slide groove 109. Rotating the prism 111 will drive the adjusting gear 107 to rotate, thereby adjusting the relative position of the two adjusting racks 108. The two adjusting racks 108 then pull the two adjusting seats 105 to move synchronously relative to each other.

[0073] A method for drawing a continuously cast copper rod with a variable diameter includes the following steps:

[0074] Adjust the tilt angle of the spinning unit 300 on the moving table 200 so that the projection length of the part of the extrusion strip 303 between the two transmission columns 302 on the horizontal plane meets the length requirement of the deformation range of the copper rod.

[0075] Adjust the distance between the two spinning units 300 so that the minimum distance between the two spinning units 300 meets the requirements for the copper rod diameter change;

[0076] The copper rod is passed through the gap between the two spinning units 300 and conveyed.

[0077] Since the distance between the two spinning units 300 gradually decreases along the copper rod conveying direction, the two spinning units 300 perform a squeezing process on the copper rod.

[0078] The copper rod drives the extrusion belt 303 on the spinning unit 300 to move on the two transmission columns 302, so that the extrusion belt 303 is stationary relative to the copper rod along the copper rod conveying direction;

[0079] The rotating frame 100 is driven to rotate around the circumference of the copper rod, and the moving table 200 is driven to move laterally within the rotating frame 100. The rotating frame 100 and the moving table 200 synchronously drive the spinning unit 300 to move. Along the circumference of the copper rod, the extrusion strip 303 is relatively stationary with respect to the copper rod, and the spinning unit 300 performs frictionless rolling and diameter-changing processing on the copper rod.

[0080] When the spinning unit 300 moves from one side of the copper rod axis to the other side, the rotating frame 100 and the moving table 200 move in opposite directions, and this process is repeated to achieve continuous variable diameter drawing of the copper rod.

[0081] The above-described drawing method of the present invention can effectively realize a continuous casting copper rod diameter changing drawing device, and the technical effects it can achieve are as described in the above embodiments, which will not be repeated here.

[0082] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A continuously cast copper rod diameter-changing drawing device, characterized in that, The device includes a rotating frame that reciprocates in a vertical plane, two moving platforms located opposite each other inside the rotating frame, and spinning units disposed on each of the moving platforms. A copper rod passes through the gap between the two spinning units and is conveyed. The rotation axis of the rotating frame coincides with the copper rod conveying axis. The movement trajectory of the moving platform within the rotating frame is perpendicular to the copper rod axis. In the circumferential direction of the copper rod, both the moving platform and the spinning unit are stationary relative to the outer wall of the copper rod. The spinning unit includes a bracket, two drive columns rotatably mounted on the bracket, and a pressing belt that is driven on the two drive columns and presses the copper rod. The bracket is connected to the moving table, and the vertical line connecting the two drive columns is inclined relative to the axis of the copper rod. An auxiliary unit is provided between the two transmission columns. The auxiliary unit provides support for the part of the extrusion belt that contacts the copper rod. The auxiliary unit is a pad or a number of auxiliary rollers arranged along the conveying direction of the extrusion belt. The spinning unit also includes a secondary column, which is triangularly distributed with the two drive columns. The extrusion belt moves on the two drive columns and the secondary column, and the surface of the extrusion belt between the secondary column and the drive column closest to it is parallel to the axis of the copper rod. The secondary column is connected to the adjacent transmission column by a number of telescopic rods, and the compression belt is kept taut by an elastic body disposed on the telescopic rods and providing elastic force to the secondary column.

2. The continuously cast copper rod diameter-changing drawing device according to claim 1, characterized in that, The bracket and the mobile platform are rotatably connected via a hinged column.

3. The continuously cast copper rod diameter-changing drawing device according to claim 2, characterized in that, The telescopic rod is kept horizontal by a guide structure set on the moving platform. The guide structure includes a guide frame one fixed relative to the moving platform and a guide frame two sliding relative to the guide frame one. The guide frame two is slidably connected to the telescopic rod, and the sliding direction of the guide frame two on the telescopic rod is relatively inclined to the sliding direction of the guide frame two on the guide frame one.

4. The continuously cast copper rod diameter-changing drawing device according to claim 2, characterized in that, A plurality of slots are provided on the movable platform that is close to the outer circumferential wall of the hinge column, and the slots are inclined along the circumferential direction of the hinge column. The hinge column is hollow, and a plurality of guide platforms are arranged in the circumferential direction on the inner wall of the hinge column. A locking post is slidably arranged on the guide platform, and the end of the locking post slides through the hinge column and is inserted into the corresponding locking slot. A straight toothed column is coaxially arranged inside the hinge column. The locking column is provided with a moving tooth that cooperates with the straight toothed column. The straight toothed column is provided with a plurality of locking blocks. The locking blocks are locked into the gap between the guide table and the adjacent locking columns. The end of the locking column on the guide table away from the inner wall of the hinge column abuts against the locking block. The straight toothed column and the hinge column are connected by an elastic body.

5. The continuously cast copper rod diameter-changing drawing device according to claim 1, characterized in that, The mobile platform is provided with a mounting platform, and the mobile platform slides on the mounting platform. A helical toothed column is rotatably provided on the mounting platform. The mobile platform is provided with a power wheel and a drive plate. Both the power wheel and the drive plate are provided with helical teeth that cooperate with the helical toothed column. The power wheel and the drive plate are respectively located on both sides of the helical toothed column.

6. The continuously cast copper rod diameter-changing drawing device according to claim 5, characterized in that, Adjustable seats are slidably provided at both ends of the mounting platform, and the adjustable seats are slidably provided on the rotating frame via slide rails. The sliding direction of the adjustable seats on the rotating frame is perpendicular to the sliding direction of the mounting platform on the adjustable seats and is perpendicular to the axis of the copper rod. The movable range of the mounting platform on the adjustable seats is divided into a working area where the spinning unit squeezes the copper rod and a transition area where the spinning unit and the copper rod move synchronously. The position of the mounting platform is adjusted by an adjusting cylinder.

7. A method for drawing a continuously cast copper rod with a variable diameter, comprising using a continuously cast copper rod with a variable diameter drawing device as described in any one of claims 1-6, characterized in that, Includes the following steps: Adjust the tilt angle of the spinning unit on the moving table so that the projection length of the part of the extrusion band between the two transmission columns on the horizontal plane meets the length requirements of the deformation range of the copper rod. Adjust the distance between the two spinning units so that the minimum distance between the two spinning units meets the requirements for the diameter change of the copper rod; The copper rod is passed through the gap between the two spinning units and conveyed. Since the distance between the two spinning units gradually decreases along the copper rod conveying direction, the two spinning units perform a squeezing process on the copper rod. The copper rod drives the extrusion belt on the spinning unit to move on the two drive columns, so that the extrusion belt is stationary relative to the copper rod along the conveying direction of the copper rod; The drive frame rotates around the circumference of the copper rod, and the drive table moves laterally within the frame. The frame and table move synchronously to drive the spinning unit. Along the circumference of the copper rod, the extrusion strip is relatively stationary with respect to the copper rod, and the spinning unit performs frictionless rolling and diameter-changing processing on the copper rod. As the spinning unit moves from one side of the copper rod axis to the other, the rotating frame and the moving table move in opposite directions, repeating this process to achieve continuous variable diameter drawing of the copper rod.

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