An SCR continuous casting copper billet traction pinch roll mechanism and a traction method

Abstract

The present invention relates to the technical field of traction equipment, and particularly to an SCR continuous casting copper billet traction pinch roll mechanism and a traction method, which include a plurality of press feed units circumferentially distributed around the copper billet conveying axis. The press feed unit includes a conveying component and a pressing component; the conveying component includes two conveying wheels and a soft belt drivingly arranged on the two conveying wheels. By adopting the method of surface contact traction, the contact area between the mechanism and the copper billet surface can be effectively increased, thereby reducing the local stress on the copper billet surface, facilitating the protection of the copper billet, and avoiding its deformation and damage. At the same time, the way of increasing the contact area also helps to increase the friction force, avoid slipping, and make the force on the copper billet uniform, thereby improving the stability of copper billet traction; by adopting the method of rotary traction, the traction work can be made simpler and more convenient to operate, the structure can be simplified, and the traction speed can be made more stable.

Description

Technical Field

[0001] The present invention relates to the technical field of traction equipment, and in particular to a SCR continuous casting copper billet traction clamping and conveying mechanism and a traction method. Background Art

[0002] Continuous casting technology is one of the core processes in the modern metal processing industry, especially in the production of copper and copper alloys. Due to its high efficiency, continuity and energy saving, continuous casting technology is widely used in the manufacture of copper rods, copper bars and other products. As a mature copper rod production technology, SCR continuous casting technology has become the mainstream process for the production of electrical copper rods with its high production efficiency, stable product quality and excellent conductivity.

[0003] In the SCR continuous casting process, the copper liquid is cooled and solidified into a copper billet through a crystallizer, and then the copper billet is pulled out and sent to the rolling equipment through a traction mechanism. As a key equipment in the continuous casting process, the performance of the traction mechanism directly affects the forming quality, production efficiency and stability of the equipment operation of the copper billet. Traditional traction mechanisms mostly use similar structures such as conveyor wheels for extrusion and conveying or similar structures such as clamping and pulling. When using similar structures such as conveyor wheels, the pressure of the conveyor wheels on the copper billet is large due to the small contact area with the surface of the copper billet, which can easily cause deformation and damage to the surface of the copper billet. In addition, due to the small contact area, the clamping force on the copper billet is unstable, and it is easy to slip, which makes it difficult to meet the high-precision and high-efficiency production requirements. When using similar structures such as clamps for pulling, multiple sets of clamps are required to reciprocate and alternately pull the copper billet. Its running and operation methods are cumbersome, the structure is complex, and the copper billet pulling speed is unstable. Summary of the invention

[0004] The present invention provides an SCR continuous casting copper billet traction clamping and conveying mechanism and a traction method, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A SCR continuous casting copper billet traction clamping and conveying mechanism, comprising a plurality of pressing and conveying units circumferentially distributed around a copper billet conveying axis, wherein the pressing and conveying units comprise a conveying assembly and a pressing assembly;

[0007] The conveying assembly comprises two conveying wheels and a soft belt which is arranged on the two conveying wheels for transmission;

[0008] The pressing assembly is a plurality of pressing rollers arranged along the conveying direction of the copper billet, and the plurality of pressing rollers are used to press part of the conveying assembly onto the surface of the copper billet so that the conveying assembly is in surface contact with the copper billet, and the pressing rollers are in the shape of U-shaped wheels.

[0009] In some embodiments of the present invention, the soft belt is made of at least one of high-temperature resistant rubber, wire braiding, ceramic fiber composite material, and graphene-reinforced composite material, and the style of the soft belt is at least one of a multi-layer composite structure, a modular structure, or a surface texture design.

[0010] In some embodiments of the present invention, the distance between the pressing unit and the copper billet conveying axis is adjustable, and the angle between the rotating axis of the pressing roller and the copper billet conveying axis is adjustable.

[0011] In some embodiments of the present invention, the arrangement of several of the pressing rollers is one of the same-direction arrangement, staggered arrangement one by one, and relative arrangement in groups.

[0012] In some embodiments of the present invention, the arrangement of several of the pressing rollers is the same-direction arrangement;

[0013] The pressing assembly further includes two side bars and two adjusting wheels. The two side bars are parallel to each other. The two ends of the pressing roller are rotatably installed on the side bars through connecting joints. Two extension plates are oppositely arranged on each adjusting wheel. The two extension plates on the adjusting wheel are both along the radial direction of the adjusting wheel, and the two extension plates are collinear. Connecting columns are arranged on each extension plate. The two connecting columns on each adjusting wheel are respectively rotatably connected to the two side bars;

[0014] Among them, the two adjusting wheels are driven by a driving wheel.

[0015] In some embodiments of the present invention, the conveying assembly further includes a rotating motor. The output end of the rotating motor transmits power to one of the conveying wheels through a torque measuring instrument. The torque measuring instrument is used to detect the torque between the rotating motor and one of the conveying wheels.

[0016] In some embodiments of the present invention, the distance between the two conveying wheels in the conveying assembly is adjustable.

[0017] In some embodiments of the present invention, sector-shaped baffles are arranged on both end faces of each conveying wheel, and the baffles are away from the copper billet conveying axis. The baffles are fixed relative to the conveying wheel axis.

[0018] In some embodiments of the present invention, ear plates are arranged on each baffle;

[0019] A connecting rod is arranged between the two baffles on the same side of the two conveying wheels in the conveying assembly. One end of the connecting rod is fixed on the ear plate of one baffle, and the other end of the connecting rod slides through the ear plate of the other baffle and is connected to each other by a spring.

[0020] A traction method for a traction and pinch mechanism of SCR continuous casting copper billets, comprising the following steps:

[0021] Adjust the angle between the axis of the pressure roller and the axis of copper billet transportation, so that when the pressure roller presses on a partial soft belt, it changes the arc of the partial soft belt to match the outer shape of the copper billet;

[0022] Pass the copper billets processed by continuous casting through several pressure feeding units;

[0023] Bring several pressure feeding units closer to each other and use the soft belt to extrude the surface of the copper billet;

[0024] Synchronously rotate the conveying wheels on each pressure feeding unit, so that several soft belts run synchronously in the same direction and traction-convey the copper billets;

[0025] Real-time detect the rotation torque of the conveying wheels, so as to detect the magnitude of the acting force when the pressure feeding unit traction-conveys the copper billets. When the traction force is large, there is a large amount of copper billets shaped in the external mold, and they cannot be traction-conveyed out of the mold in time, so it is necessary to increase the rotation speed of the conveying wheels. On the contrary, it is necessary to reduce the rotation speed of the conveying wheels.

[0026] Through the technical solution of the present invention, the following technical effects can be achieved:

[0027] By adopting the surface contact traction method, the contact area between the mechanism and the surface of the copper billet can be effectively increased, thereby reducing the local stress on the surface of the copper billet, facilitating the protection of the copper billet, avoiding its deformation and damage. At the same time, the method of increasing the contact area also helps to increase the friction force, avoid slipping, and facilitate the uniform force on the copper billet, thereby improving the stability of copper billet traction; By adopting the rotation traction method, the traction work can be made simpler and more convenient to operate, the structural method can be simplified, and the traction speed can be made more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 is the structural schematic diagram of the present invention;

[0030] Figure 2 is the structural schematic diagram of the pressure feeding unit in the embodiment of the present invention;

[0031] Figure 3 is the exploded schematic diagram of the pressure feeding unit in the embodiment of the present invention;

[0032] Figure 4It is a schematic structural diagram of the conveying component in the embodiment of the present invention;

[0033] Figure 5 It is a schematic structural diagram of the pressing component in the embodiment of the present invention;

[0034] Figure 6 It is a schematic structural diagram of the baffle in the embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of several pressing rollers arranged in the same direction in the embodiment of the present invention;

[0036] Figure 8 It is a schematic diagram of several pressing rollers arranged in groups relatively in the embodiment of the present invention;

[0037] Figure 9 It is a schematic diagram of several pressing rollers arranged staggeredly one by one in the embodiment of the present invention.

[0038] Reference numerals:

[0039] 100, pressure feeding unit;

[0040] 200, conveying component; 201, conveying wheel; 202, soft belt; 203, torque measuring instrument; 204, rotating motor; 205, baffle; 206, connecting rod; 207, spring;

[0041] 300, pressing component; 301, pressing roller; 302, side strip; 303, adjusting wheel; 304, connecting joint; 305, extension plate; 306, connecting column; 307, driving wheel; 308, adjusting motor;

[0042] 400, fixing plate; 401, movable plate; 402, oil cylinder. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0045] Such as Figures 1 to 5As shown in the figure, a traction pinch mechanism for SCR continuous casting copper billets according to the present invention includes a plurality of pressing units 100 circumferentially distributed around the copper billet conveying axis. The pressing unit 100 includes a conveying component 200 and a pressing component 300;

[0046] The conveying component 200 includes two conveying wheels 201 and a soft belt 202 drivingly arranged on the two conveying wheels 201;

[0047] The pressing component 300 is a plurality of pressing rollers 301 arranged along the copper billet conveying direction. The plurality of pressing rollers 301 are used to press part of the conveying component 200 onto the surface of the copper billet, so that the conveying component 200 is in surface contact with the copper billet. The shape of the pressing roller 301 is a U-shaped wheel.

[0048] In the present invention, a plurality of pressing units 100 are used to clamp and traction the copper billets formed by solidification in the mold, so that the copper billets are slowly and continuously removed from the mold, thereby realizing the continuous casting processing method. For the convenience of clamping the copper billets, a plurality of pressing units 100 need to be circumferentially distributed around the copper billet, so as to extrude the surface of the copper billet in multiple directions, and this extrusion method is relative extrusion to improve the clamping stability; the number of a plurality of pressing units 100 is at least two groups. If a plurality of pressing units 100 are set as one unit, then at least one unit can be arranged along the copper billet conveying direction; when the cross-sectional shape of the copper billet is circular, a plurality of pressing units 100 can be circumferentially distributed, and when the shape of the copper billet is square or other shapes, a plurality of pressing units 100 can be relatively distributed around the circumference of the copper billet, and its specific distribution form can be determined according to the mold opening;

[0049] It should be noted that the conveying component 200 mainly plays a conveying role, and the pressing component 300 mainly plays a pressing role. The two conveying wheels 201 in the conveying component 200 can continuously convey the soft belt 202. The pressing component 300 can be located inside the soft belt 202, and the pressing component 300 can generate an extrusion force towards the copper billet on the part of the soft belt 202 close to the copper billet, so that this part of the soft belt 202 deforms and adheres to the surface of the copper billet, realizing the surface contact state between the soft belt 202 and the copper billet. In this way, the contact area can be increased, and then by the continuous and uniform rotation of the conveying wheel 201, the soft belt 202 can provide continuous and stable conveying power for the copper billet, realizing the surface contact type of rotary traction working method; adopting the rotary traction method can make the traction work simpler, easier to operate, and simplify the structural method, while the method of increasing the contact area can avoid slipping, improve the traction stability, and reduce the local pressure on the surface of the copper billet, facilitating the protection of the surface of the copper billet and improving the surface flatness during the traction of the copper billet; the cross-section of the conveying wheel 201 can be in the shape of a straight line or an arc surface, etc., and the soft belt 202 has a certain elasticity and deformation;

[0050] Since the soft belt 202 needs to continuously perform a driving motion, the pressing assembly 300 can adopt a number of pressing rollers 301. The pressing rollers 301 can rotate synchronously with the soft belt 202, so that the number of pressing rollers 301 can continuously provide a pressing force for the soft belt 202, and there will be no relative friction motion between the soft belt 202 and the pressing rollers 301; the number of pressing rollers 301 can achieve a multi-point contact mode with the soft belt 202, so that the soft belt 202 can be attached to the surface of the copper billet within a certain length range, realizing the surface contact state between the soft belt 202 and the copper billet, ensuring the smoothness of the transmission and achieving the effect of increasing the contact area; by setting the shape of the pressing roller 301 to a U shape, the local soft belt 202 can be deformed and its shape can be consistent with the shape of the copper billet surface, thereby improving the contact effect; in some embodiments, when the cross-sectional shape of the copper billet is square or other shapes, the shape of the pressing roller 301 can also be adjusted to the corresponding shape so that the deformed shape of the soft belt 202 corresponds to the outer shape of the copper billet;

[0051] By adopting the surface contact traction method, the contact area between the mechanism and the copper billet surface can be effectively increased, thereby reducing the local stress on the copper billet surface, facilitating the protection of the copper billet, avoiding its deformation and damage, and at the same time, the method of increasing the contact area also helps to increase the friction force, avoid slipping, and facilitate the uniform stress of the copper billet, thereby improving the stability of the copper billet traction; by adopting the rotary traction method, the traction work can be made simpler and more convenient to operate, the structure can be simplified, and the traction speed can be made more stable.

[0052] Since the temperature of the copper billet is relatively high, the soft belt 202 needs to have properties such as high temperature resistance, high wear resistance, good friction, certain flexibility and strength, so that the soft belt 202 can stably traction the copper billet. To achieve this goal, the following measures can be adopted:

[0053] The soft belt 202 can be made of at least one of materials such as high-temperature resistant rubber, metal wire braiding, ceramic fiber composite material and graphene reinforced composite material, and the style of the soft belt 202 is at least one of styles such as multi-layer composite structure, modular structure or surface texture design;

[0054] High-temperature resistant rubber, such as silicone rubber and fluororubber, can maintain stable performance in a high-temperature environment, and at the same time has good flexibility and friction; the metal wire braided belt is braided from high-temperature resistant metal wires, such as stainless steel and nickel alloy, and the surface can be covered with a high-temperature resistant coating; the ceramic fiber reinforced composite material is composed of ceramic fibers and high-temperature resistant resin, and has excellent high-temperature resistance and wear resistance; the graphene reinforced composite material has excellent strength, wear resistance and thermal conductivity, and can be used to reinforce the composite material;

[0055] The multi-layer composite structure is composed of a high temperature resistant surface layer, a reinforced middle layer and a flexible bottom layer. The surface layer is made of high temperature resistant rubber or ceramic fiber for direct contact with the copper billet. The middle layer is made of metal braid or high strength fiber for enhancing the strength of the conveyor belt. The bottom layer is made of flexible material, such as silicone rubber, for adapting to the shape of the copper billet. The modular design refers to designing the soft belt 202 into multiple modules, each module is made of high temperature resistant material, and the modules are connected by hinges or flexible connectors. The surface texture design is to design concave and convex textures or grooves on the surface of the soft belt 202 to increase the friction with the copper billet and the heat dissipation performance.

[0056] Of course, in addition to the above-mentioned materials and styles, other methods that can achieve the purpose of this case can also be used, which are all within the scope of protection of this case.

[0057] Optimized to the above implementation, such as Figure 1 and Figure 5 As shown, the distance between the pressing unit 100 and the copper billet conveying axis can be adjusted, and the angle between the rotation axis of the pressing roller 301 and the copper billet conveying axis can be adjusted;

[0058] Since the sizes of copper billets produced by different crystallizers are inconsistent in actual use, it is necessary to flexibly set the pressure unit 100 and the pressure roller 301 to adapt to copper billets of different sizes; taking a copper billet with a circular cross-sectional shape as an example, when the diameter of the copper billet is different, the space size between the several pressure units 100 can be adjusted by adjusting the distance between the pressure unit 100 and the copper billet conveying axis, so as to facilitate the copper billet to pass through the space between the several pressure units 100, and facilitate the soft belt 202 on the pressure unit 100 to extrude and pull the copper billet. The specific adjustment work of the pressure unit 100 can be completed by the oil cylinder 402. Of course, other structures such as motors, screws, electromagnetic thrusters, etc. can also be used to achieve the position adjustment of the pressure unit 100. work; and due to the different diameters of the copper billets, in order to ensure that the local deformation shape of the soft belt 202 corresponds to the outer shape of the copper billet, it is necessary to adjust the outer curvature of the pressing roller 301 to change the local deformation curvature of the soft belt 202. Here, the pressing roller 301 can be tilted by adjusting the angle between the axis of the pressing roller 301 and the axis of the copper billet conveying. In this way, the projection of the pressing roller 301 onto the surface perpendicular to the axis of the copper billet conveying will be deformed, and the curvature of the projection will change, thereby changing the local shape of the copper billet squeezed by the soft belt 202 to achieve the purpose of deformation; in some embodiments, in order to change the local curvature of the soft belt 202, it can also be achieved by replacing the pressing roller 301 with different curvatures, or by other methods. As long as the purpose of this case can be achieved, it is within the protection scope of this case.

[0059] Optimizing the above implementation, the arrangement of the plurality of pressing rollers 301 is one of the following: unidirectional arrangement, staggered arrangement one by one, and grouped relative arrangement; Figure 7As shown, it is a way of arranging several pressure rollers 301 in the same direction. This arrangement is simple, easy to assemble, and has uniform traction, which can avoid local stress concentration; as Figure 8 shown, it is a way of arranging in groups relatively. Here, the grouping can be two groups or multiple groups. This arrangement can achieve two-way balance of traction; as Figure 9 shown, it is a way of arranging one by one staggered. This way can effectively prevent the copper billet from shifting or twisting during traction, improving the traction stability; each arrangement has its outstanding characteristics, which can be flexibly selected and used during use, and the specific number of pressure rollers 301 arranged can be flexibly selected, which will not be elaborated here.

[0060] Optimized based on the above implementation, as Figure 2 and Figure 5 shown, the arrangement of several pressure rollers 301 is in the same direction;

[0061] The pressing assembly 300 further includes two side bars 302 and two adjusting wheels 303. The two side bars 302 are parallel to each other. The two ends of the pressure roller 301 are rotatably installed on the side bar 302 through a connecting joint 304. Two extension plates 305 are oppositely arranged on each adjusting wheel 303. The two extension plates 305 on the adjusting wheel 303 are both along the radial direction of the adjusting wheel 303, and the two extension plates 305 are collinear. A connecting column 306 is arranged on each extension plate 305. The two connecting columns 306 on each adjusting wheel 303 are respectively rotatably connected to the two side bars 302;

[0062] Among them, the two adjusting wheels 303 are driven by a driving wheel 307.

[0063] In the present invention, the motor 308 can be adjusted to provide power for the driving wheel 307, so that the two adjusting wheels 303 rotate synchronously in the same direction. The extension plates 305 on the two adjusting wheels 303 are parallel to each other. In this way, when the two adjusting wheels 303 move synchronously, the two adjusting wheels 303 will drive a side bar 302 to move translationally by using the corresponding two extension plates 305 and two connecting columns 306. That is, the movement form of this side bar 302 can be regarded as a similar parallelogram movement mode. The two side bars 302 will move synchronously in the opposite direction, thereby driving several pressure rollers 301 to rotate. The axis angle of the pressure roller 301 changes to realize the adjustment work of the pressure roller 301; and because the two adjusting wheels 303 rotate synchronously, each pressure roller 301 can rotate around the axis where its center point is located, and each pressure roller 301 moves synchronously, so as to limit the position of the center point of several pressure rollers 301. When the rotation adjustment axis of the pressure roller 301 deviates from the center point of the pressure roller 301, the projection of the pressure roller 301 on the vertical plane perpendicular to the copper billet conveying axis will be inclined and offset, resulting in the pressure roller 301 being unable to extrude the shape of the local soft belt 202 into the shape corresponding to the outer surface of the copper billet, and several pressure rollers 301 remain parallel to each other;

[0064] It should be noted that since the pressing roller 301 needs to rotate around its own axis and the pressing roller 301 needs to adjust the angle through the side bar 302, the connecting section 304 needs to satisfy these two movement forms of the pressing roller 301 at the same time. That is, one end of the connecting section 304 needs to be rotatably connected to the end of the pressing roller 301, and the rotation axis coincides with the self-rotation axis of the pressing roller 301. The other end of the connecting section 304 needs to be rotatably connected to the side bar 302, and the rotation axis is parallel to the axis of the connecting column 306.

[0065] Optimized based on the above implementation, such as Figure 4 As shown, the conveying assembly 200 further includes a rotating motor 204. The output end of the rotating motor 204 transmits power to a conveying wheel 201 through a torque measuring instrument 203. The torque measuring instrument 203 is used to detect the torque between the rotating motor 204 and a conveying wheel 201.

[0066] The rotating motor 204 can provide rotational power for a conveying wheel 201, thereby driving the two conveying wheels 201 and the soft belt 202 on the conveying assembly 200 to synchronously drive. The torque measuring instrument 203 is used to measure the torque between the rotating motor 204 and the corresponding conveying wheel 201. When the torque increases, the acting force of the soft belt 202 pulling the copper billet increases, and the setting amount of the copper billet in the mold increases. If the pulling speed is too slow, the pulling speed needs to be increased to avoid the set copper billet blocking the mold; when the torque decreases, the acting force of the soft belt 202 pulling the copper billet decreases, and the forming amount of the copper billet in the mold decreases. If the pulling speed is too fast, the pulling speed needs to be slowed down so that the copper billet can be set in the mold; Judging the forming state of the copper billet in the mold by the magnitude of the pulling force is an efficient and reliable method. The change in the pulling force directly reflects the solidification condition of the copper billet and the state inside the mold, and can realize the dynamic adjustment of the pulling speed to ensure the stability of production and the product quality; of course, in some embodiments, the above method can also be used in combination with real-time monitoring, automatic control systems, etc. to improve the detection accuracy and thus improve the processing quality of the copper billet.

[0067] Optimized based on the above implementation, the distance between the two conveying wheels 201 in the conveying assembly 200 can be adjusted.

[0068] Since the soft belt 202 will undergo local deformation when being pressed by the pressing assembly 300, the distance between the two conveying wheels 201 needs to be adjustable so as to meet the pulling work for copper billets of different specifications; in actual use, such as Figure 2As shown, a fixed plate 400 and a movable plate 401 can be set. The movable plate 401 can slide on the fixed plate 400. Two conveying wheels 201 are respectively rotatably installed on the fixed plate 400 and the movable plate 401. The rotary motor 204 and the adjusting motor 308 are both arranged on the fixed plate 400. The movable end of the oil cylinder 402 is connected to the fixed plate 400. The adjusting wheel 303 and the adjusting motor 308 are both rotatably installed on the fixed plate 400. Of course, in some embodiments, structures such as mounting brackets and frames can also be used to support and install the above-mentioned various structures.

[0069] Optimized based on the above implementation, sector-shaped baffles 205 are provided on both end faces of each conveying wheel 201, and the baffles 205 are away from the copper billet conveying axis, and the baffles 205 are fixed relative to the axis of the conveying wheel 201.

[0070] When the soft belt 202 is driven on the conveying wheel 201, in order to prevent the soft belt 202 from separating from the conveying wheel 201, the baffle 205 can be used to block the soft belt 202, as Figure 4 shown. And the setting of the baffle 205 cannot contact the copper billet. Therefore, the shape of the baffle 205 can be set as a sector, so that the baffle 205 and the copper billet are in a state of being away from each other, and the baffle 205 is relatively fixed to the axis of the conveying wheel 201 to prevent the baffle 205 from following the movement of the conveying wheel 201 and making the baffle 205 contact the copper billet. Of course, the shape of the baffle 205 can also be a strip or other shapes that can have the above functional characteristics.

[0071] Optimized based on the above implementation, as Figure 6 shown, ear plates are provided on each baffle 205;

[0072] A connecting rod 206 is arranged between the two baffles 205 on the same side of the two conveying wheels 201 in the conveying assembly 200. One end of the connecting rod 206 is fixed on the ear plate of one baffle 205, and the other end of the connecting rod 206 slides through the ear plate of the other baffle 205 and is connected to each other through a spring 207.

[0073] In the present invention, the connecting rod 206 can support the two baffles 205. During actual use, each conveying wheel 201 can be supported and driven by a mandrel, and the baffle 205 can be rotatably sleeved on the mandrel. In this way, with the support of the connecting rod 206, the baffle 205 can be kept in a state relatively fixed to the axis of the corresponding conveying wheel 201, preventing the baffle 205 from rotating randomly. The spring 207 is mainly provided to generate a repulsive force between the two baffles 205. This force is transmitted to the two conveying wheels 201 through the mandrel, thereby generating a repulsive force between the two conveying wheels 201, facilitating the two conveying wheels 201 to expand the soft belt 202 and keep the soft belt 202 in a taut state. This structural method can not only limit the direct positional relationship of the two baffles 205 to keep them relatively stationary to the axes of their respective corresponding conveying wheels 201, but also allow the connecting rod 206 to slide relative to one baffle 205, and can also keep the soft belt 202 in a taut state.

[0074] A traction method for an SCR continuous casting copper billet traction and pinch mechanism includes the following steps:

[0075] Adjust the angle between the axis of the pressure roller 301 and the copper billet conveying axis so that the pressure roller 301 changes the radian of a part of the soft belt 202 when pressing the part of the soft belt 202 to make the radian match the shape of the copper billet.

[0076] Pass the copper billet processed by continuous casting through a number of pressure feeding units 100.

[0077] Move a number of pressure feeding units 100 closer to each other and use the soft belt 202 to squeeze the surface of the copper billet.

[0078] Synchronously rotate the conveying wheels 201 on each pressure feeding unit 100 to make a number of soft belts 202 run synchronously in the same direction and traction-convey the copper billet.

[0079] Real-time detect the rotation torque of the conveying wheel 201, thereby detecting the magnitude of the force when the pressure feeding unit 100 traction the copper billet. When the traction force is large, the amount of copper billet shaped in the external mold is large and cannot be pulled out of the mold in time, and the rotation speed of the conveying wheel 201 needs to be increased. Conversely, the rotation speed of the conveying wheel 201 needs to be decreased.

[0080] By adopting this traction method, the rotation torque of the conveying wheel 201 can be detected in real time, the magnitude of the traction force can be indirectly monitored, and the rotation speed of the conveying wheel 201 can be dynamically adjusted. When the traction force is large, increase the rotation speed of the conveying wheel 201 to timely pull out the copper billet in the mold. When the traction force is small, decrease the rotation speed of the conveying wheel 201 to avoid the copper billet being broken or the surface quality deteriorating, ensuring a stable and efficient traction process; by surface contact traction and dynamic adjustment of the traction speed, the local stress and damage on the surface of the copper billet are reduced, the dimensional accuracy and surface quality of the copper billet are improved, a continuous and stable production process is ensured, and the production efficiency is improved.

[0081] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A traction pinch mechanism for SCR continuous casting copper billets, characterized in that, It includes several pressing and conveying units circumferentially distributed around the copper billet conveying axis, and each pressing and conveying unit includes a conveying assembly and a pressing assembly; The conveying assembly includes two conveying wheels and a flexible belt drivingly arranged on the two conveying wheels; The pressing assembly is several pressing rollers arranged along the copper billet conveying direction. The several pressing rollers are used to press part of the conveying assembly onto the copper billet surface, so that the conveying assembly is in surface contact with the copper billet. The shape of the pressing roller is a U-shaped wheel; The distance between the pressing and conveying unit and the copper billet conveying axis is adjustable, and the included angle between the rotation axis of the pressing roller and the copper billet conveying axis is adjustable; The arrangement of the several pressing rollers is in the same direction; The pressing assembly further includes two side bars and two adjusting wheels. The two side bars are parallel to each other. The two ends of the pressing roller are rotatably installed on the side bars through connecting joints. Two extension plates are oppositely arranged on each adjusting wheel. The two extension plates on the adjusting wheel are both along the radial direction of the adjusting wheel, and the two extension plates are collinear. A connecting column is arranged on each extension plate. The two connecting columns on each adjusting wheel are respectively rotatably connected to the two side bars; Among them, the two adjusting wheels are driven by a driving wheel; The conveying assembly further includes a rotating motor. The output end of the rotating motor transmits power to one of the conveying wheels through a torque measuring instrument. The torque measuring instrument is used to detect the torque between the rotating motor and one of the conveying wheels.

2. The SCR continuous casting copper billet traction and pinch roll mechanism according to claim 1, characterized in that, The flexible belt is made of at least one of high-temperature resistant rubber, metal wire braiding, ceramic fiber composite material, and graphene reinforced composite material, and the style of the flexible belt is at least one of a multi-layer composite structure, a modular structure, or a surface texture design.

3. The SCR continuous casting copper billet traction pinch roll mechanism according to claim 1, characterized in that, The distance between the two conveying wheels in the conveying assembly is adjustable; 4. The SCR continuous casting copper billet traction pinch roll mechanism according to claim 1, characterized in that, Sector-shaped baffles are arranged on both end faces of each conveying wheel, and the baffles are away from the copper billet conveying axis, and the baffles are fixed relative to the conveying wheel axis; 5. A SCR continuous casting copper billet traction and pinch roll mechanism according to claim 4, characterized in that, An ear plate is arranged on each baffle; A connecting rod is arranged between the two baffles on the same side of the two conveying wheels in the conveying assembly. One end of the connecting rod is fixed on the ear plate of one baffle, and the other end of the connecting rod slides through the ear plate of the other baffle and is connected to each other through a spring.

6. A traction method for a traction and pinch roll mechanism of an SCR continuous casting copper billet, applicable to a traction and pinch roll mechanism of an SCR continuous casting copper billet as described in any one of claims 1-5, characterized in that, It includes the following steps: Adjust the included angle between the pressing roller axis and the copper billet conveying axis, so that when the pressing roller presses part of the flexible belt, it changes the radian of part of the flexible belt to make the radian match the shape of the copper billet; Make the copper billet processed by continuous casting pass through several pressing and conveying units; Make several pressing and conveying units approach each other and use the flexible belt to extrude the copper billet surface; Synchronously rotate the conveying wheels on each pressing and conveying unit, so that several flexible belts run synchronously in the same direction and traction-convey the copper billet; Real-time detect the rotation torque of the conveying wheel, so as to detect the magnitude of the acting force when the pressing and conveying unit traction-conveys the copper billet. When the traction force is large, the amount of copper billet shaped in the external mold is large and cannot be pulled out of the mold in time, and it is necessary to increase the rotation speed of the conveying wheel. On the contrary, it is necessary to decrease the rotation speed of the conveying wheel.

Images