A graphite mold for continuous casting of metal

Abstract

The invention discloses a graphite mold for continuous metal casting, relates to the field of mold cooling equipment, solves the problem that it is difficult to directly cool the outer wall of a casting and the surface of the casting is easily worn when the existing graphite mold for continuous metal casting is used, comprises a graphite mold tube, a cooling mechanism and a grinding mechanism, the cooling mechanism comprises a semicircular tube and a drain pipe, the inner wall of the semicircular tube is provided with a water spray hole, the grinding mechanism comprises a grinding tube, the invention controls the opening and closing state of the semicircular tube during casting through the cooling mechanism, so that when the outer wall of the metal casting is cooled, the semicircular tubes on both sides are controlled to slide open to both sides, the water spray hole is away from the outer wall of the casting, and the cooling liquid is sprayed at the same time, and the cooling liquid residue on the inner wall of the graphite mold tube is circulated and transported through the drain pipe, and the grinding tube is driven to rotate during the casting process, the outer wall of the formed metal casting is preliminarily polished, and the polished dust is collected and transported together with the cooling liquid.

Description

Technical Field

[0001] The invention relates to the technical field of mold cooling equipment, in particular to a graphite mold used for continuous metal casting. Background Art

[0002] In the field of non-ferrous metal processing, especially in the casting of copper and copper alloys, horizontal continuous casting technology is the main casting technology currently used in the non-ferrous metal industry. Among them, the cooling device is mainly composed of a graphite mold tube and a built-in water cooling pipeline. The coolant transfers the temperature through the graphite mold to the metal outer wall for cooling. This cooling method passes through the heat conduction of the graphite mold, and some heat will be lost in the middle, affecting the cooling efficiency.

[0003] The patent with the publication number CN217512824U discloses a cooling device for continuous casting molds, including a primary cooling water jacket and a graphite mold located in the primary cooling water jacket cavity, a flange is provided at the rear end of the primary cooling water jacket; an annular cavity is provided in the middle of the flange, and an air inlet and an air outlet are provided on the flange; an annular guide groove is provided on the outer peripheral surface of the graphite mold, and a plurality of guide holes connected to the inner cavity of the graphite mold are provided in the guide groove at intervals, and a collecting channel is provided on the graphite mold wall along the axial direction, and the front end of the collecting channel is connected to the guide groove, and the rear end is connected to the air outlet. The patent has higher cooling efficiency, and the direct contact of the cooling gas with the outer surface of the casting can quickly shrink the outer diameter of the casting, and form a fine gap with the inner surface of the graphite mold, reduce the friction between the graphite mold and the casting, make the surface of the casting smooth and flat, and improve the stability of the casting during continuous production. However, during use, the cavity inside the graphite mold and the metal are in a frictional relationship, and the gap between them is small. If the air is blown directly to cool down, the gap between the air hole and the metal is too small, and the gas is difficult to diffuse around. At this time, if the metal has not been formed, it will cause a depression in the blowing position. If the airflow is slow, the cooling efficiency is relatively poor. Summary of the invention

[0004] The object of the present invention is to provide a graphite mold for continuous metal casting which can improve cooling efficiency and simultaneously grind the outer wall of the metal casting, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a graphite mold for continuous casting of metal, comprising a mounting frame, a graphite mold tube, a cooling mechanism and a grinding mechanism, wherein the graphite mold tube is rotatably connected to an input pipe, the cooling mechanism comprises two groups of semicircular tubes installed inside the graphite mold tube, an opening and closing groove is provided inside the graphite mold tube, the semicircular tubes are slidably connected to the inner wall of the opening and closing groove, a plurality of groups of water spray holes are evenly provided on the inner wall of the semicircular tube, a drainage pipe connected to the opening and closing groove is provided on the side of the graphite mold tube, and is used to control the opening and closing state of the semicircular tubes during casting, so that When cooling the outer wall of the metal casting, the semicircular tubes on both sides are controlled to slide and open to both sides, and the water spray hole is moved away from the outer wall of the casting while the coolant is sprayed, and the coolant residue on the inner wall of the graphite mold tube is circulated and transported through the drain pipe. The grinding mechanism includes a grinding tube rotatably connected to the inner wall of the graphite mold tube, which is used to drive the grinding tube to rotate during the casting process, and preliminarily grind the outer wall of the formed metal casting. At the same time, the grinding dust is collected and transported together with the coolant, so as to improve the cooling efficiency and simultaneously grind the outer wall of the metal casting.

[0006] Preferably, the cooling mechanism also includes a guide tube fixedly mounted on the semicircular tube, the guide tube passes through the side of the graphite mold tube and is slidably connected to the graphite mold tube, one end of the guide tube is connected to the semicircular tube, and one end of the guide tube away from the semicircular tube is fixedly connected to a driving disk, two groups of fixed cylinders are fixedly connected to the outer wall of the graphite mold tube, and the driving disk is slidably connected to the inner wall of the fixed cylinder, and a control component for controlling the sliding state of the driving disk is provided on the mounting frame, so as to facilitate the control of the opening and closing of the semicircular tube and increase the gap between the casting.

[0007] Preferably, the control component includes a first annular tube fixedly mounted on the outer wall of the graphite mold tube, a first sleeve fixedly connected to the mounting frame and rotatably connected to the outer wall of the first annular tube, the first annular tube is connected to the inner wall of the first sleeve, and the side of the fixed cylinder is connected to a first pipe connected to the first annular tube, so as to facilitate controlling the sliding state of the driving disk.

[0008] Preferably, the control component also includes a tension spring fixedly mounted on the driving disk, one end of the tension spring away from the driving disk is fixedly connected to the outer wall of the graphite mold tube, a side hole capable of communicating with the first pipeline is opened on the side of the guide tube, and a conveying component for controlling the conveying state of the coolant inside the first sleeve is provided on the mounting frame, so as to facilitate the control of the conveying state of the coolant.

[0009] Preferably, the cooling mechanism also includes a spiral tube fixedly installed inside the graphite mold tube, one end of the spiral tube is connected to the circular tube, the side surfaces of the two groups of fixed tubes are connected to the circular tube, the outer wall of the graphite mold tube is fixedly connected to a second circular tube, one end of the spiral tube away from the circular tube is connected to the second circular tube, a second sleeve rotatably connected to the outer wall of the second circular tube is fixedly connected to the mounting frame, and the second circular tube is connected to the inner wall of the second sleeve, so as to facilitate auxiliary cooling of the outer wall of the metal casting.

[0010] Preferably, the conveying member includes an apparatus tube fixedly mounted on the mounting frame, the first sleeve and the second sleeve are respectively connected to the side surfaces at both ends of the apparatus tube, a cooling device capable of filtering and cooling is provided in the apparatus tube, one end of the drain pipe is connected to the second annular tube, and a driving member for conveying coolant is provided in the apparatus tube to facilitate control of the conveying state of the coolant inside the first sleeve.

[0011] Preferably, the grinding mechanism also includes a first outer gear ring rotatably connected to one end of the graphite mold tube, the first outer gear ring is provided with a plurality of groups of plug-in grooves, the grinding tube is fixedly connected with a plurality of groups of plug-in blocks that can be plugged into the plug-in grooves, the first outer gear ring is threadedly connected with a threaded ring for fixing the grinding tube, the grinding tube is provided with a circulation part for linking the internal cooling and assisting the transportation of dust during the grinding process, the driving part is used to link the grinding tube to rotate, so as to drive the grinding tube to rotate during the casting process, perform preliminary grinding on the outer wall of the formed metal casting, and collect and transport the grinding dust together with the coolant.

[0012] Preferably, the circulation part includes a second pipe connected to the annular tube, an annular cavity connected to the second pipe is provided inside the graphite mold tube, and multiple groups of third pipes connected to the annular cavity are provided in the polishing tube. One end of the third pipe away from the annular cavity is connected to the inner wall of the polishing tube, so as to facilitate the linkage cooling of the interior and assist in the transportation of dust during the polishing process.

[0013] Preferably, the driving member includes a driving motor fixedly mounted on the mounting frame, the output end of the driving motor is coaxially fixedly connected to a driving shaft, a plurality of driving blades slidingly fitted with the inner wall of the device tube are fixedly connected to the driving shaft, and a rotating member is provided on the driving shaft for linking the polishing tube to rotate in the opposite direction while driving the graphite mold tube to rotate, so as to facilitate the delivery of coolant.

[0014] Preferably, the rotating member includes a first gear coaxially fixedly mounted on the driving shaft, a second outer gear ring meshing with the first gear is fixedly connected to the outer wall of the graphite mold tube, an inner gear ring is coaxially fixedly connected to the side of the second outer gear ring, and a plurality of groups of second gears meshing with the first outer gear ring are rotatably connected to the mounting frame, and the plurality of groups of second gears are respectively meshed with the inner gear ring, so as to facilitate the linkage of the grinding tube to rotate in the opposite direction while driving the graphite mold tube to rotate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention provides a graphite mold for continuous metal casting, which solves the problem that it is difficult to directly cool the outer wall of the casting and the surface of the casting is easily worn when the existing graphite mold for continuous metal casting is used. The opening and closing state of the semicircular tube is controlled by a cooling mechanism during casting, so that when the outer wall of the metal casting is cooled, the semicircular tubes on both sides are controlled to slide and open to both sides, and the water spray hole is away from the outer wall of the casting while the coolant is sprayed. At the same time, the coolant residue on the inner wall of the graphite mold tube is circulated and transported through a drain pipe. During the casting process, the grinding tube is driven to rotate, and the outer wall of the formed metal casting is preliminarily polished. At the same time, the grinding dust is collected and transported together with the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the local structure of the cooling mechanism of the present invention;

[0019] Figure 3 It is a partial structural cross-sectional view of the cooling mechanism of the present invention;

[0020] Figure 4 for Figure 3 A magnified image of the middle A area;

[0021] Figure 5 It is a schematic diagram of the local structure of the grinding mechanism of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of area B;

[0023] Figure 7 It is a partial structural cross-sectional view of the grinding mechanism of the present invention;

[0024] Figure 8 for Figure 7 Enlarged view of area C.

[0025] In the figure: 1, mounting frame; 2, graphite mold tube; 3, semicircular tube; 4, opening and closing groove; 5, water spray hole; 6, drain pipe; 7, grinding tube; 8, guide tube; 9, driving plate; 10, fixing cylinder; 11, first annular tube; 12, first sleeve; 13, first pipeline; 14, tension spring; 15, side hole; 16, spiral tube; 17, circular tube; 18, second annular tube; 19, second sleeve; 20, device tube; 21, cooling equipment; 22, first outer gear ring; 23, plug-in groove; 24, plug-in block; 25, threaded ring; 26, second pipeline; 27, annular cavity; 28, third pipeline; 29, driving motor; 30, driving shaft; 31, driving blade; 32, first gear; 33, second outer gear ring; 34, inner gear ring; 35, second gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 8 A graphite mold for continuous metal casting shown in the figure includes a mounting frame 1, a graphite mold tube 2, a cooling mechanism and a grinding mechanism. The graphite mold tube 2 is rotatably connected to the input pipe. The cooling mechanism includes two groups of semicircular tubes 3 installed inside the graphite mold tube 2. An opening and closing groove 4 is provided inside the graphite mold tube 2. The semicircular tube 3 is slidably connected to the inner wall of the opening and closing groove 4. A plurality of groups of water spray holes 5 are evenly provided on the inner wall of the semicircular tube 3. A drainage pipe 6 connected to the opening and closing groove 4 is provided on the side of the graphite mold tube 2 to control the semicircular tube 3 during casting. The opening and closing state allows the semicircular tubes 3 on both sides to slide open when the outer wall of the metal casting is cooled, and the water spray hole 5 is away from the outer wall of the casting while spraying the coolant. At the same time, the coolant residue on the inner wall of the graphite mold tube 2 is circulated and transported through the drain pipe 6. The grinding mechanism includes a grinding tube 7 rotatably connected to the inner wall of the graphite mold tube 2, which is used to drive the grinding tube 7 to rotate during the casting process, and preliminarily grind the outer wall of the formed metal casting, and collect and transport the grinding dust together with the coolant.

[0029] The cooling mechanism also includes a guide tube 8 fixedly mounted on the semicircular tube 3. The guide tube 8 passes through the side of the graphite mold tube 2 and is slidably connected to the graphite mold tube 2. One end of the guide tube 8 is connected to the semicircular tube 3. The end of the guide tube 8 away from the semicircular tube 3 is fixedly connected to a drive disk 9. Two groups of fixed cylinders 10 are fixedly connected to the outer wall of the graphite mold tube 2. The drive disk 9 is slidably connected to the inner wall of the fixed cylinder 10. A control component for controlling the sliding state of the drive disk 9 is provided on the mounting frame 1.

[0030] The control component includes a first annular tube 11 fixedly installed on the outer wall of the graphite mold tube 2, a first sleeve 12 fixedly connected to the mounting frame 1 and rotatably connected to the outer wall of the first annular tube 11, the first annular tube 11 is connected to the inner wall of the first sleeve 12, and the side of the fixed cylinder 10 is connected to a first pipe 13 connected to the first annular tube 11.

[0031] The control component also includes a tension spring 14 fixedly mounted on the drive disk 9, and one end of the tension spring 14 away from the drive disk 9 is fixedly connected to the outer wall of the graphite mold tube 2. A side hole 15 that can be connected to the first pipeline 13 is opened on the side of the guide tube 8, and a conveying component for controlling the conveying state of the coolant inside the first sleeve 12 is provided on the mounting frame 1.

[0032] The cooling mechanism also includes a spiral tube 16 fixedly installed inside the graphite mold tube 2, one end of the spiral tube 16 is connected to the circular tube 17, the side surfaces of the two sets of fixed cylinders 10 are connected to the circular tube 17, the outer wall of the graphite mold tube 2 is fixedly connected to a second circular tube 18, one end of the spiral tube 16 away from the circular tube 17 is connected to the second circular tube 18, and a second sleeve 19 rotatably connected to the outer wall of the second circular tube 18 is fixedly connected to the mounting frame 1, and the second circular tube 18 is connected to the inner wall of the second sleeve 19.

[0033] The conveying member includes an installation pipe 20 fixedly installed on the mounting frame 1, the first sleeve 12 and the second sleeve 19 are respectively connected to the side surfaces of the two ends of the installation pipe 20, a cooling device 21 capable of filtering and cooling is provided in the installation pipe 20, one end of the drain pipe 6 is connected to the second annular pipe 18, and a driving member for conveying the coolant is provided in the installation pipe 20.

[0034] The driving member includes a driving motor 29 fixedly mounted on the mounting frame 1, and the driving motor 29 is preferably of model Y80M1-2. The output end of the driving motor 29 is coaxially fixedly connected with a driving shaft 30, and a plurality of driving blades 31 slidingly fitted with the inner wall of the device tube 20 are fixedly connected to the driving shaft 30. The driving shaft 30 is provided with a rotating member for driving the grinding tube 7 to rotate in the opposite direction while driving the graphite mold tube 2 to rotate.

[0035] In this embodiment, the molten metal is input into the graphite mold tube 2 through the input pipe, and the driving motor 29 drives the driving shaft 30 to rotate the driving blade 31 to realize the pumping of the coolant, and the coolant is pumped from the second sleeve 19 to the first sleeve 12 side for output, and is filtered and cooled by the cooling device 21 in the middle. The cooled coolant is output from the first sleeve 12 to the first annular tube 11, and the spring first pipeline 13 is input into the fixed cylinder 10. At this time, the hydraulic pressure on the side of the driving disk 9 close to the graphite mold tube 2 will increase first, pushing the driving disk 9 to slide in the fixed cylinder 10, and the tension spring 14 is stretched until After the driving disk 9 slides to the set position, the side hole 15 slides into the fixed cylinder 10 and is connected to the first pipe 13. At this time, the guide tube 8 drives the semicircular tube 3 to open to both sides, releasing the fit with the outer wall of the metal casting. At the same time, the position of the driving disk 9 makes the annular tube 17 connected to the fixed cylinder 10, so that a part of the coolant in the fixed cylinder 10 enters the guide tube 8 through the side hole 15 and is transported to the semicircular tube 3, and is sprayed to the outer wall of the casting through the water spray hole 5, thereby increasing the distance between the water spray hole 5 and the casting, reducing the impact effect, and at the same time increasing the range of temperature diffusion of the coolant in the graphite mold tube 2, thereby improving the cooling efficiency.

[0036] The coolant output through the annular tube 17 will enter one end of the spiral tube 16, and be transported in the spiral tube 16 to absorb the heat of the casting inside the graphite mold tube 2 to achieve a cooling function, and then output from the other end to the second annular tube 18, and input into the device tube 20 through the second sleeve 19 for a circulating cooling operation. At the same time, the coolant collected in the opening and closing groove 4 will circulate to the second annular tube 18 through the drain pipe 6 for a circulating filtering operation.

[0037] It is worth noting that: additional cooling equipment can be provided inside the graphite mold tube 2, so that the casting inside can be initially cooled and formed before the coolant is transported. At this time, the inner walls of the semicircular tubes 3 on both sides are flush with the inner walls of the graphite mold tube 2, so that the casting has been initially formed when it is transported to the position of the semicircular tube 3, and is transported to the polishing tube 7 under the guidance of the inner wall of the semicircular tube 3 for outer wall polishing. After that, the semicircular tube 3 is opened for further auxiliary cooling operation. At this time, the initially formed casting will not enter the opening and closing groove 4. The length of the opening and closing groove 4 is relatively short, and the columnar casting can be transported relatively smoothly. At the same time, the coolant is transported from one side of the semicircular tube 3 to one side of the input tube in the conveying direction of the spiral tube 16, so that the temperature close to the side of the semicircular tube 3 is lower, and the temperature close to the side of the input tube is relatively high, so as to avoid the situation where the input metal casting is directly cooled quickly and the casting is damaged.

[0038] Embodiment 2:

[0039] See also Figure 2-Figure 8The present embodiment further illustrates the first embodiment. The grinding mechanism shown in the figure also includes a first outer gear ring 22 rotatably connected to one end of the graphite mold tube 2. The first outer gear ring 22 is provided with a plurality of plug-in grooves 23. The grinding tube 7 is fixedly connected with a plurality of plug-in blocks 24 that can be plugged into the plug-in grooves 23. The first outer gear ring 22 is threadedly connected with a threaded ring 25 for fixing the grinding tube 7. The grinding tube 7 is provided with a circulation member for linking the internal cooling and assisting the dust transportation during the grinding process. The driving member is used to link the grinding tube 7 to rotate.

[0040] The circulation part includes a second pipe 26 connected to the annular tube 17, an annular cavity 27 connected to the second pipe 26 is opened inside the graphite mold tube 2, and multiple groups of third pipes 28 connected to the annular cavity 27 are opened in the polishing tube 7. The end of the third pipe 28 away from the annular cavity 27 is connected to the inner wall of the polishing tube 7.

[0041] The rotating member includes a first gear 32 coaxially fixedly mounted on the driving shaft 30, a second outer gear ring 33 meshing with the first gear 32 is fixedly connected to the outer wall of the graphite mold tube 2, an inner gear ring 34 is coaxially fixedly connected to the side of the second outer gear ring 33, and a plurality of groups of second gears 35 meshing with the first outer gear ring 22 are rotatably connected to the mounting frame 1, and the plurality of groups of second gears 35 are respectively meshed with the inner gear ring 34.

[0042] In this embodiment, the grinding tube 7 is inserted into one end of the graphite mold tube 2, so that the plug-in block 24 is plugged into the plug-in groove 23, and the grinding tube 7 is fixed to the first outer gear ring 22 by the threaded ring 25. The driving motor 29 drives the first gear 32 to rotate, and the first gear 32 drives the second outer gear ring 33 to rotate the graphite mold tube 2. The molten metal on the inner wall is cast by the rotating graphite mold tube 2, which reduces the friction between the casting and the opening of the drain pipe 6. It also allows the opening of the drain pipe 6 to intermittently rotate to the bottom position to pump the coolant.

[0043] The second outer gear ring 33 drives the inner gear ring 34 to rotate, so that the second gear 35 drives the first outer gear ring 22 to rotate, and the grinding tube 7 can be rotated. At this time, the rotation direction of the grinding tube 7 is opposite to the rotation direction of the graphite mold tube 2. The inner wall of the grinding tube 7 is a conical cavity, and the inner diameter of one end facing the first outer gear ring 22 is smaller than the inner diameter of the other end, so that the casting can be polished by the inner wall of the grinding tube 7 during the transportation process. Since the casting will shrink slightly during the shrinkage molding process, the diameter after shrinkage is the same as the inner diameter of the end of the grinding tube 7 close to the first outer gear ring 22, realizing the synchronous grinding function and ensuring that the outer wall of the output casting is relatively smooth.

[0044] It is worth noting that the coolant in the annular tube 17 will be input into the annular cavity 27 through the second pipe 26, and output to the inner wall of the grinding tube 7 near the end of the first outer gear ring 22 through the third pipe 28. The coolant will collect and transport the dust generated by grinding, and transport it along the inclined inner wall of the grinding tube 7 to one end of the opening and closing groove 4, and circulate it through the drain pipe 6. On the one hand, it realizes the continuous cooling function of the casting in the grinding tube 7, and on the other hand, it also collects the dust generated during the grinding process to avoid the spread of dust.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphite mold for continuous casting of metal, characterized in that: include: A mounting frame (1) and a graphite mold tube (2), wherein the graphite mold tube (2) is rotatably connected to the input tube; Also includes: A cooling mechanism, the cooling mechanism comprising two groups of semicircular tubes (3) installed inside the graphite mold tube (2), the graphite mold tube (2) having an opening and closing groove (4) inside, the semicircular tube (3) being slidably connected to the inner wall of the opening and closing groove (4), the inner wall of the semicircular tube (3) being evenly provided with a plurality of groups of water spray holes (5), the side of the graphite mold tube (2) being provided with a drainage pipe (6) connected to the opening and closing groove (4), for controlling the opening and closing state of the semicircular tube (3) during casting, so that when cooling the outer wall of the metal casting, the semicircular tubes (3) on both sides are controlled to slide open to both sides, the water spray holes (5) are moved away from the outer wall of the casting while the cooling liquid is sprayed, and at the same time, the cooling liquid residue on the inner wall of the graphite mold tube (2) is circulated and transported through the drainage pipe (6); A grinding mechanism, the grinding mechanism comprising a grinding tube (7) rotatably connected to the inner wall of the graphite mold tube (2), used to drive the grinding tube (7) to rotate during the casting process, to perform preliminary grinding on the outer wall of the formed metal casting, and to collect and transport the grinding dust together with the coolant. The cooling mechanism also comprises a guide tube (8) fixedly mounted on the semicircular tube (3), the guide tube (8) passes through the side of the graphite mold tube (2) and is slidably connected to the graphite mold tube (2), one end of the guide tube (8) is connected to the semicircular tube (3), and the end of the guide tube (8) away from the semicircular tube (3) is fixedly connected to a driving disk (9), and the outer wall of the graphite mold tube (2) is fixedly connected to two A fixed cylinder (10) is provided, the driving disk (9) being slidably connected to the inner wall of the fixed cylinder (10), the mounting frame (1) being provided with a control member for controlling the sliding state of the driving disk (9), the control member comprising a first annular tube (11) fixedly mounted on the outer wall of the graphite mold tube (2), the mounting frame (1) being fixedly connected to a first sleeve (12) rotatably connected to the outer wall of the first annular tube (11), the first annular tube (11) being connected to the inner wall of the first sleeve (12), the side of the fixed cylinder (10) being connected to a first pipe (13) connected to the first annular tube (11), the control member further comprising a tension spring (14) fixedly mounted on the driving disk (9), the tension spring (14) being connected to the outer wall of the first annular tube (11) and the first sleeve (12) being connected to the inner wall of the first sleeve (12). 4) one end away from the driving disk (9) is fixedly connected to the outer wall of the graphite mold tube (2), a side hole (15) capable of communicating with the first pipeline (13) is opened on the side of the guide tube (8), a conveying member for controlling the conveying state of the coolant in the first sleeve (12) is provided on the mounting frame (1), the cooling mechanism also includes a spiral tube (16) fixedly installed inside the graphite mold tube (2), one end of the spiral tube (16) is connected to the annular tube (17), the side surfaces of the two groups of the fixed cylinders (10) are connected to the annular tube (17), the outer wall of the graphite mold tube (2) is fixedly connected to a second annular tube (18), the spiral tube (16) is away from the annular tube (17) ) is connected to the second annular tube (18); a second sleeve (19) is fixedly connected to the mounting frame (1) and is rotatably connected to the outer wall of the second annular tube (18); the second annular tube (18) is connected to the inner wall of the second sleeve (19); the conveying member comprises a device tube (20) fixedly mounted on the mounting frame (1); the first sleeve (12) and the second sleeve (19) are respectively connected to the side surfaces of both ends of the device tube (20); a cooling device (21) capable of filtering and cooling is provided in the device tube (20); one end of the drain pipe (6) is connected to the second annular tube (18); and a driving member for conveying cooling liquid is provided in the device tube (20).

2. A graphite mold for metal continuous casting according to claim 1, characterized in that: The grinding mechanism further comprises a first outer gear ring (22) rotatably connected to one end of the graphite mold tube (2), the first outer gear ring (22) being provided with a plurality of groups of plug-in grooves (23), the grinding tube (7) being fixedly connected with a plurality of groups of plug-in blocks (24) capable of plugging into the plug-in grooves (23), the first outer gear ring (22) being threadedly connected with a threaded ring (25) for fixing the grinding tube (7), the grinding tube (7) being provided with a circulation member for linking to cool the interior and assisting in conveying dust during the grinding process, and the driving member being used for linking the grinding tube (7) to rotate.

3. A graphite mold for metal continuous casting according to claim 2, characterized in that: The circulation member comprises a second pipe (26) connected to the annular pipe (17); an annular cavity (27) connected to the second pipe (26) is provided inside the graphite mold tube (2); a plurality of third pipes (28) connected to the annular cavity (27) are provided inside the polishing tube (7); an end of the third pipe (28) away from the annular cavity (27) is connected to the inner wall of the polishing tube (7).

4. A graphite mold for metal continuous casting according to claim 2, characterized in that: The driving member comprises a driving motor (29) fixedly mounted on the mounting frame (1); an output end of the driving motor (29) is coaxially fixedly connected to a driving shaft (30); a plurality of driving blades (31) are fixedly connected to the driving shaft (30) and are slidably fitted to the inner wall of the device tube (20); and a rotating member is provided on the driving shaft (30) for driving the graphite mold tube (2) to rotate in a linked manner so as to cause the polishing tube (7) to rotate in the opposite direction.

5. A graphite mold for metal continuous casting according to claim 4, characterized in that: The rotating member comprises a first gear (32) coaxially fixedly mounted on the driving shaft (30); a second outer gear ring (33) meshing with the first gear (32) is fixedly connected to the outer wall of the graphite mold tube (2); an inner gear ring (34) is coaxially fixedly connected to the side surface of the second outer gear ring (33); and a plurality of groups of second gears (35) meshing with the first outer gear ring (22) are rotatably connected to the mounting frame (1); the plurality of groups of second gears (35) are respectively meshed with the inner gear ring (34).

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