A coaxial core positioning system and continuous casting coating production line

Abstract

This invention provides a coaxial core-setting system and a continuous casting cladding production line, belonging to the field of hot-melt continuous casting technology. The coaxial core-setting system includes a crystallizer and a two-dimensional fine-tuning device. The crystallizer is connected to the inlet and outlet of the furnace on the same axis, and contains a core-setting mold to constrain the radial displacement of the steel core. The two-dimensional fine-tuning device is located before the furnace inlet and / or after the furnace outlet, and includes a support member for supporting the steel core. The two-dimensional fine-tuning device can drive the support member to move horizontally and vertically in a plane perpendicular to the steel core's trajectory. The coaxial core-setting system of this invention ensures that the axis of the steel core is coaxial at the furnace inlet and outlet, thereby helping to maintain the uniformity of the steel core cladding thickness.

Description

Technical Field

[0001] This invention relates to the field of hot melt continuous casting technology, specifically to a coaxial core-setting system and a continuous casting coating production line. Background Technology

[0002] When manufacturing copper-clad steel bimetallic materials using continuous casting, the process is as follows: a cleaned steel core is passed through molten copper, and then the outer surface of the steel core is covered with a certain thickness of copper by the cooling effect of the crystallizer.

[0003] When using this method, the steel core to be coated is straightened in advance. The straightened steel core is then continuously fed into the furnace for the coating process. However, currently, when the steel core axis is not aligned with the furnace inlet and outlet, it can easily lead to uneven thickness of the copper coating layer on the steel core. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the thickness of the copper layer coated on the steel core is easily uneven in the prior art, thereby providing a coaxial core fixing system and a continuous casting coating production line.

[0005] To address the above problems, the present invention provides a coaxial centering system, comprising:

[0006] The first crystallizer is connected to the inlet of the furnace;

[0007] The second crystallizer is coaxially connected to the first crystallizer at the outlet of the furnace;

[0008] A two-dimensional fine-tuning device is provided before the inlet of the furnace. The two-dimensional fine-tuning device is equipped with a support member for supporting the steel core passing through the first crystallizer and the second crystallizer. The two-dimensional fine-tuning device can drive the support member to move horizontally and vertically in a plane perpendicular to the trajectory of the steel core.

[0009] Furthermore, a core-fixing mold is detachably connected to the inner wall of the second crystallizer, and the core-fixing mold constrains the radial displacement of the steel core.

[0010] Furthermore, the core-setting mold has an annular structure, and the inner wall of the second crystallizer has an annular groove for embedding the core-setting mold.

[0011] Furthermore, the core-setting mold is made of ceramic material.

[0012] Furthermore, the two-dimensional fine-tuning device includes:

[0013] A base, on which a first platform is slidably connected, the first platform being able to move relative to the base in a vertical direction under a drive;

[0014] The second platform is slidably connected to the first platform, and the support member is fixed on the second platform. The second platform can move horizontally relative to the first platform under drive.

[0015] Furthermore, the base is provided with a first driving member suitable for driving the first platform to move, and the first platform is provided with a second driving member suitable for driving the second platform to move.

[0016] Furthermore, the support member includes two oppositely arranged rollers, with a guide channel formed between the two rollers for passing through the steel core.

[0017] Furthermore, the distance between the two rollers is adjustable.

[0018] Furthermore, the roller is mounted on a support frame, which has at least two symmetrical strip grooves extending along the line connecting the two rollers, and any one of the rollers is mounted on the strip groove.

[0019] In addition, the present invention also provides a continuous casting cladding production line, including the coaxial core-setting system as described in any of the preceding claims.

[0020] The technical solution of this invention has the following advantages:

[0021] 1. The coaxial core-setting system provided by the present invention includes a two-dimensional fine-tuning device installed before the furnace inlet, a first crystallizer installed at the furnace inlet, and a second crystallizer connected at the furnace outlet. The first and second crystallizers are coaxially arranged. The two-dimensional fine-tuning device, the first crystallizer, and the second crystallizer can jointly support the steel core and ensure that the steel core remains coaxial with the furnace inlet and outlet, thereby avoiding the problem of uneven copper coating thickness on the steel core. In addition, since the two-dimensional fine-tuning device can move horizontally and vertically in a plane perpendicular to the steel core's trajectory, the steel core is constrained by the two-dimensional fine-tuning device, the first crystallizer, and the second crystallizer after moving with the two-dimensional fine-tuning device. This helps to improve the coaxiality of the steel core with the crystallizer after entering the furnace, thereby ensuring the uniformity of the copper coating on the steel core.

[0022] 2. The coaxial core-setting system provided by the present invention has a core-setting mold that is detachably connected to the inner wall of the second crystallizer. When the core-setting mold is affected by the wear of the steel core, affecting the uniformity of the copper layer coating, the old core-setting mold can be removed and replaced with a new core-setting mold, which effectively improves the uniformity of the copper coating on the steel core.

[0023] 3. The coaxial centering system provided by the present invention has an adjustable spacing between the two rollers of the support member, which can be adapted to steel cores of different diameters to be covered, thereby expanding the application range of the two-dimensional fine adjustment device.

[0024] 4. The continuous casting cladding production line provided by the present invention has all the advantages of a coaxial core-setting system because it includes the coaxial core-setting system as described in any of the preceding claims. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a top view of the internal structure of the furnace body in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the continuous casting coating production line in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the core-setting mold in the crystallizer in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the two-dimensional fine-tuning device in an embodiment of the present invention;

[0030] Figure 5 This is a perspective view of the flipping and straightening device in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Furnace; 2. Second crystallizer; 3. Two-dimensional fine-tuning device; 4. Wheel straightening device; 5. Tilting straightening device; 6. First crystallizer; 21. Core-setting mold;

[0033] 31. Base; 32. First platform; 33. Second platform; 34. First driving component; 35. Second driving component; 36. Roller; 37. Strip groove;

[0034] 51. Shaft; 52. Connecting plate; 53. Housing; 54. Straightening block; 55. Positioning hole. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] 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.

[0038] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example 1

[0040] This embodiment provides a coaxial core-fixing system that can be applied to horizontal continuous casting processes to perform copper cladding on the traction steel core.

[0041] like Figure 1 As shown, the coaxial core-setting system of this embodiment includes a first crystallizer 6, a second crystallizer 2, and a two-dimensional fine-tuning device 3. The first crystallizer 6 is connected to the inlet of the furnace 1, and the second crystallizer 2 is coaxially connected to the first crystallizer 6 at the outlet of the furnace 1. The two-dimensional fine-tuning device 3 is located before the inlet of the furnace 1. The two-dimensional fine-tuning device 3 is provided with a support member for supporting the steel core. The two-dimensional fine-tuning device 3 can drive the support member to move horizontally and vertically in a plane perpendicular to the trajectory of the steel core.

[0042] By setting up the two-dimensional fine-tuning device 3, the two-dimensional fine-tuning device 3 can support the steel core; in addition, since the two-dimensional fine-tuning device 3 can move horizontally and vertically in a plane perpendicular to the trajectory of the steel core, the steel core is aligned with the inlet and outlet of the furnace 1 after moving with the two-dimensional fine-tuning device 3, which helps to improve the coaxiality of the steel core and the inlet and outlet of the furnace 1, thereby ensuring the uniformity of copper coating on the steel core.

[0043] Here, "before the inlet of furnace 1" refers to the direction of the steel core's travel path before it enters furnace 1, and "after the outlet" refers to the direction of the steel core's travel path after it has been coated and exited furnace 1.

[0044] like Figure 3 As shown, the first crystallizer 6 in this embodiment is provided with an interface suitable for inputting inert gas. By inputting inert gas into the first crystallizer 6, air can be avoided when the steel core enters the furnace, thus avoiding affecting the normal coating effect. A core-fixing mold 21 is detachably connected to the inner wall of the second crystallizer 2. One end of the core-fixing mold 21 is set facing the inside of the furnace 1. Specifically, the core-fixing mold 21 can be a high-precision mold made of ceramic material. The inner wall of the second crystallizer 2 is provided with an annular groove, and the core-fixing mold 21 is embedded in the annular groove. After the steel core to be coated enters the second crystallizer 2, the coating thickness of the copper liquid is constrained by the core-fixing mold 21, thereby effectively maintaining the coaxiality of the steel core and the uniformity of the copper layer coating.

[0045] Here, the core-setting mold 21 is detachably mounted on the second crystallizer 2. When the uniformity of copper coating is affected by wear on the steel core, the old core-setting mold 21 can be removed and replaced with a new one, which helps maintain the uniformity of copper coating on the steel core. In addition, since the steel core passes through the furnace body supported by the core-setting mold 21, the two-dimensional fine-tuning device 3 can also support the steel core, thereby preventing excessive wear on the core-setting mold 21 from affecting its normal service life.

[0046] For cost and ease of assembly, the first crystallizer 6 is preferably provided with an inert gas interface but without a core-setting mold 21, while the second crystallizer 2 is provided with a core-setting mold 21 but without an inert gas interface. As an alternative implementation, the first crystallizer 6 and the second crystallizer 2 can use the same crystallizer product, that is, both are provided with an inert gas interface and a core-setting mold, with the first crystallizer 6 only using the inert gas interface and the second crystallizer 2 only using the function of the core-setting mold 21.

[0047] like Figure 4 As shown, the two-dimensional fine-tuning device 3 described in this embodiment includes a base 31, a first platform 32 slidably connected to the base 31, the first platform 32 being able to move relative to the base 31 in a vertical direction under drive, a second platform 33 slidably connected to the first platform 32, the second platform 33 being able to move relative to the first platform 32 in a horizontal direction under drive, and the aforementioned support member being fixed on the second platform 33, thereby being able to move synchronously with the first platform 32 and the second platform 33.

[0048] Still Figure 4As shown, the base 31 is provided with a first driving member 34 suitable for driving the first platform 32 to move, and the first bar is provided with a second driving member 35 suitable for driving the second platform 33. The first driving member 34 and the second driving member 35 are preferably driven by a cylinder. As an alternative implementation, the first driving member 34 and the second driving member 35 can also be driven by an electric push rod or a screw.

[0049] In this embodiment, the support member on the second platform 33 includes two opposing rollers 36, which form a guide channel for inserting the steel core. The two rollers 36 are spaced apart along the height direction; the lower roller 36 supports the steel core, while the upper roller 36 provides auxiliary guidance. Alternatively, the two rollers 36 can be arranged horizontally.

[0050] Furthermore, the distance between the two rollers 36 is adjustable. Specifically, a support frame is fixed on the second platform 33, and the two rollers 36 are mounted on the support frame. The support frame has two symmetrically arranged strip grooves 37 extending along the line connecting the two rollers 36. The roller 36 located on the upper side is fastened to the strip groove 37 by bolts. The position of the roller 36 in the strip groove 37 is adjusted by adjusting the bolts, thereby realizing the adjustment of the distance between the two rollers 36.

[0051] As an alternative implementation, one roller 36 can be fixedly connected to a linear drive cylinder, and the distance between the two rollers 36 can be adjusted by the cylinder's operation. By making the distance between the two rollers 36 of the support adjustable, it can accommodate steel core parts of different diameters to be covered, thereby expanding the applicability of the two-dimensional fine-tuning device 3.

[0052] Working principle:

[0053] When the steel core is conveyed to the two-dimensional fine-tuning device 3, it is supported by the support members and conveyed to the inlet of the furnace 1. The positions of the first platform 32 and the second platform 33 are adjusted so that the steel core is coaxial with the inlet of the furnace 1. The steel core to be coated is continuously supported by the two rollers 36. The steel core product after the copper coating process in the furnace 1 is supported by the two-dimensional fine-tuning device 3 after the outlet. The two-dimensional fine-tuning device 3 before the inlet, the inlet of the furnace 1, the outlet of the furnace 1, and the two-dimensional fine-tuning device 3 after the outlet are all on the same axis, thereby effectively improving the uniformity of the steel core coating.

[0054] Example 2

[0055] This embodiment provides a continuous casting cladding production line, such as Figure 2 and Figure 5As shown, it includes the coaxial centering system as described in Embodiment 1, and also includes a wheel alignment device 4 and a flipping alignment device 5.

[0056] The wheel alignment device 4 is provided with a horizontal guide wheel row 41 and a vertical guide wheel row 42 suitable for passing through the steel core; here, the distance between the horizontal guide wheel row 41 and the vertical guide wheel row 42 can be adjusted by bolts to accommodate steel cores of different diameters.

[0057] like Figure 2 and Figure 5 As shown, after passing through the wheel straightening device 4, the steel core enters the flipping straightening device 5. The flipping straightening device 5 has a rotating straightening cavity, which is adapted to perform a straightening process on the steel core passing through the straightening cavity.

[0058] Specifically, the flipping and straightening device 5 includes two rotating shafts 51 and two connecting plates 52 fixed between the two rotating shafts 51 and arranged in parallel. The two connecting plates 52 and the outer shell 53 together form a straightening cavity. Several straightening blocks 54 are arranged at intervals along the length of the two connecting plates 52. The center of each straightening block 54 is provided with a straightening hole for inserting a steel core. Slide grooves are respectively opened on the two connecting plates 52 along the radial direction of rotation. The straightening blocks 54 are slidably connected in the slide grooves. Several mounting plates are connected to the two connecting plates 52. Positioning holes 55 are respectively provided on the mounting plates corresponding to the positions of each straightening block 54. A fixing member is inserted through the positioning hole 55. The fixing member presses against the straightening block 54 to constrain the movement of the straightening block 54 in the slide groove. The depth of the fixing member entering the connecting plate 52 can be adjusted to facilitate the adjustment of the position of the straightening block 54, thereby facilitating the passage of the steel core through the flipping and straightening device 5.

[0059] In this embodiment, after the steel core is preheated by the flipping and straightening device 5 and the heating mechanism, it is threaded through the coaxial core-fixing system. The positioning constraint of the steel core by the wheel straightening device 4, the flipping and straightening device 5 and the coaxial core-fixing system effectively improves the uniformity of the copper layer coating after the steel core enters the furnace 1, and ensures the coating effect.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A coaxial centering system, characterized in that, include: The first crystallizer (6) is connected to the inlet of the furnace (1), and the first crystallizer (6) is provided with an interface suitable for inputting inert gas; The second crystallizer (2) is coaxially connected to the first crystallizer (6) at the outlet of the furnace (1); A two-dimensional fine-tuning device (3) is provided before the inlet of the furnace (1). The two-dimensional fine-tuning device (3) is provided with a support member for supporting the steel core passing through the first crystallizer (6) and the second crystallizer (2). The two-dimensional fine-tuning device (3) can drive the support member to move horizontally and vertically in a plane perpendicular to the trajectory of the steel core. The inner wall of the second crystallizer (2) is detachably connected to a core-fixing mold (21), which constrains the radial displacement of the steel core. Wheel straightening device (4), the wheel straightening device (4) is provided with a horizontal guide wheel row and a vertical guide wheel row suitable for passing through the steel core; The flipping and straightening device (5) has a rotating straightening cavity, and the steel core enters the flipping and straightening device (5) after passing through the wheel straightening device (4).

2. The coaxial centering system according to claim 1, characterized in that, The core-setting mold (21) has an annular structure, and the inner wall of the second crystallizer (2) has an annular groove for embedding the core-setting mold (21).

3. The coaxial centering system according to claim 1, characterized in that, The core-setting mold (21) is made of ceramic material.

4. The coaxial centering system according to any one of claims 1-3, characterized in that, The two-dimensional fine-tuning device (3) includes: A base (31) is provided, on which a first platform (32) is slidably connected. The first platform (32) can move relative to the base (31) in the vertical direction under a drive. The second platform (33) is slidably connected to the first platform (32), and the support member is fixed on the second platform (33). The second platform (33) can move horizontally relative to the first platform (32) under drive.

5. The coaxial centering system according to claim 4, characterized in that, The base (31) is provided with a first driving member (34) suitable for driving the first platform (32) to move, and the first platform (32) is provided with a second driving member (35) suitable for driving the second platform (33) to move.

6. The coaxial centering system according to any one of claims 1-3, characterized in that, The support includes two oppositely arranged rollers (36), with a guide channel formed between the two rollers (36) for passing through the steel core.

7. The coaxial centering system according to claim 6, characterized in that, The distance between the two rollers (36) is adjustable.

8. The coaxial centering system according to claim 7, characterized in that, The roller (36) is mounted on a support frame, which has at least two symmetrical strip grooves (37) extending along the line connecting the two rollers (36), and any one of the rollers (36) is mounted on the strip groove (37).

9. A continuous casting cladding production line, characterized in that, Includes the coaxial centering system as described in any one of claims 1-8.

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