A casting head and continuous casting component thereof

Abstract

The utility model relates to the technical field of continuous casting, and more specifically, to a casting head and its continuous casting assembly, wherein the casting head includes a diverter plate and a liquid outlet pipe; further includes a first floating plate, a first lifting rod, a first rocking arm and a piston, wherein the first floating plate is parallel to the bottom surface of the diverter plate, the first lifting rod is perpendicular to the first floating plate, one end of the first lifting rod is fixedly connected to the first floating plate, and the other end of the first lifting rod is rotationally connected to one end of the first rocking arm; the other end of the first rocking arm is rotationally connected to the piston, and the first rocking arm is also rotationally connected to the diverter plate; the piston is located in the liquid adding chamber to block the liquid inlet of the liquid outlet pipe. The utility model overcomes the shortcomings of the prior art that when the end of the liquid outlet pipe is worn or damaged, the molten metal will pass through the damaged part of the liquid outlet pipe, resulting in quality defects such as cold shut and tearing in the casting. The utility model uses the lifting and lowering of the piston to control the on and off of the liquid outlet pipe, and the molten metal will not flow through the end face of the liquid outlet pipe, which is beneficial to improving the quality of the casting.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting, and more specifically to a casting head and a continuous casting component thereof. Background Art

[0002] The principle of continuous casting is to continuously pour molten metal into a special metal shell called a crystallizer. The molten metal is injected from the top of the crystallizer, and the solidified casting is continuously pulled out from the bottom of the crystallizer.

[0003] like Figure 1 The figure shows a casting assembly commonly used in the prior art, which includes a starter head 1, a crystallizer 2 and a casting head. A casting cavity 201 is formed between the starter head 1 and the crystallizer 2, and the starter head 1 can slide up and down relative to the crystallizer 2. The casting head includes a diverter plate 3, a liquid outlet pipe 4 and a floating plugging member 5 (commonly known as a float) slidably connected to the liquid outlet pipe 4 along the vertical direction. The floating plugging member 5 includes a guide portion 501 and a plugging portion 502 connected to the guide portion 501. The molten metal passes through the inner cavity of the diverter plate 3 and the liquid outlet pipe 4 and hits the plugging portion 502, and then enters the casting cavity 201 from the left and right sides of the plugging portion 502. The floating plugging member 5 will rise with the rise of the liquid level of the casting cavity 201 until the plugging portion 502 blocks the port of the liquid outlet pipe 4, so that the molten metal stops flowing into the casting cavity 201. During the casting process, the starter head 1 moves downward for many times. Each time the starter head 1 moves downward, the liquid level in the casting cavity 201 drops, and the floating plugging member 5 also slides down, allowing the molten metal to flow out from the port of the liquid outlet pipe 4 again.

[0004] However, in the above technical solution, there are some problems in controlling the liquid level of the molten metal by using the floating plugging member 5. After multiple casting operations, the end face of the liquid outlet pipe 4 will have defects such as wear, damage, thinning and unevenness. Since the flow direction of the molten metal flowing out of the liquid outlet pipe 4 into the casting cavity 201 is perpendicular to the axis of the liquid outlet pipe 4, the molten metal will flow through the end face of the liquid outlet pipe 4 and then enter the casting cavity 201. Therefore, when the end face of the liquid outlet pipe 4 is worn, damaged or uneven, the flow rate of the molten metal flowing out of the left and right sides of the end face of the liquid outlet pipe 4 will become uneven, causing the surface of the molten metal in the casting cavity 201 to be not smooth enough, and the molten metal in different areas of the casting cavity 201 will have a large temperature difference, resulting in quality defects such as cold shut and cracking on the surface of the final casting. Utility Model Content

[0005] In view of the problem in the above-mentioned prior art that when the end of the liquid outlet pipe is worn or damaged, the molten metal will pass through the damaged part of the liquid outlet pipe and cause quality defects such as cold shut and cracking in the casting, the utility model provides a casting head and a casting assembly thereof, in which the molten metal does not need to flow through the end of the liquid outlet pipe. Even if the end of the liquid outlet pipe is worn or damaged, it will not affect the flow of the molten metal, which is beneficial to improving the quality of the casting.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] A casting head comprises a diverter plate and a liquid outlet pipe connected to the diverter plate, wherein a liquid adding chamber is arranged in the diverter plate, and a liquid inlet and a liquid outlet are respectively arranged at two ends of the liquid outlet pipe, the liquid inlet is communicated with the liquid adding chamber, and the liquid outlet is located outside the diverter plate; the casting head also comprises a first floating plate, a first lifting rod, a first rocking arm and a piston, the first floating plate is parallel to the bottom surface of the diverter plate, the first lifting rod is perpendicular to the first floating plate and one end of the first lifting rod is fixedly connected to the first floating plate, and the other end of the first lifting rod is rotatably connected to one end of the first rocking arm; the other end of the first rocking arm is rotatably connected to the piston, and the first rocking arm is also rotatably connected to the diverter plate; the piston is located in the liquid adding chamber and is used to block the liquid inlet of the liquid outlet pipe.

[0008] In the above technical scheme, the molten metal enters the liquid outlet pipe from the liquid adding chamber through the liquid inlet, and then enters the casting chamber of the continuous casting machine through the liquid outlet. As the liquid level in the casting chamber rises, the first floating plate, the first lifting rod, and the first rocker connected to one end of the first lifting rod rise together, so that the first rocker rotates relative to the diverter disk, and the end of the first rocker connected to the piston descends, thereby causing the piston to descend. When the first floating plate rises to a certain height along with the liquid level in the casting chamber, the piston descends to block the liquid inlet of the liquid outlet pipe, thereby preventing the molten metal in the liquid adding chamber from entering the liquid inlet of the liquid outlet pipe. After the liquid level in the casting chamber of the continuous casting machine descends, the first floating plate, the first lifting rod, and the first rocker connected to one end of the first lifting rod descend together, so that the first rocker rotates relative to the diverter disk, and the other end of the first rocker rises, thereby causing the piston to rise to be separated from the liquid inlet, and the molten metal in the liquid adding chamber passes through the liquid inlet again. This technical solution uses the lifting and lowering of the piston to control the opening and closing of the liquid outlet pipe. Since the flow direction of the molten metal flowing out of the liquid outlet is in the axial direction of the liquid outlet pipe, rather than in the direction perpendicular to the axis of the liquid outlet pipe, the molten metal does not need to flow through the end of the liquid outlet pipe. Even if the end of the liquid outlet pipe is worn or abraded, the flow of the molten metal will not be affected, thereby avoiding defects such as cold shut or cracking of the casting.

[0009] Preferably, the diverter plate is provided with a first limiter, the first limiter is provided with a first limiter collar, and the first lifting rod passes through the inner cavity of the first limiter collar. The first limiter collar can limit the range of motion of the first lifting rod in the horizontal direction, so that the first lifting rod can be kept in a vertical state as much as possible, and the first lifting rod is prevented from shaking in the horizontal direction, causing the first floating plate to lose balance and affecting the precise control of the liquid level.

[0010] Preferably, a guide cylinder is provided on the diverter plate; a guide rod is provided on the top of the piston, and at least a portion of the guide rod extends into the inner cavity of the guide cylinder and is slidably connected to the inner cavity of the guide cylinder along the vertical direction; one end of the first rocker is rotatably connected to the guide rod, that is, one end of the first rocker is rotatably connected to the piston through the guide rod. During the rotation of the rocker, the guide rod slides up and down along the inner cavity of the guide cylinder, so that the piston keeps moving in the vertical direction. The provision of the guide rod and the guide cylinder can limit the range of motion of the piston in the horizontal direction, so that the piston keeps rising and falling smoothly, and the liquid inlet is smoothly blocked and opened.

[0011] Preferably, it also includes a second floating plate, a second lifting rod and a second rocking arm, the diverter plate is provided with a second limiting member, and the second limiting member is provided with a second limiting collar; the second floating plate and the first floating plate are respectively located on opposite sides of the diverter plate, the second lifting rod is perpendicular to the second floating plate, and one end of the second lifting rod is fixedly connected to the second floating plate, and the other end passes through the inner cavity of the second limiting collar and is rotatably connected to one end of the second rocking arm; the other end of the second rocking arm is rotatably connected to the guide rod, and the second rocking arm is also rotatably connected to the diverter plate. The functions and working principles of the second floating plate, the second lifting rod, the second rocking arm, and the second limiting collar are respectively the same as those of the first floating plate, the first lifting rod, the first rocking arm, and the first limiting collar, so they are not repeated here. It can be understood that the provision of the second floating plate, the second lifting rod, and the second rocking arm can reduce the load of the first rocking arm, which is conducive to further improving the stability of the piston lifting.

[0012] Preferably, the piston is cylindrical, and the axis of the guide rod coincides with the axis of the piston. The movement of a cylindrical piston is more stable, less prone to tilting or swinging, and a cylindrical piston is easier to process than pistons of other shapes.

[0013] Preferably, a cone portion is provided at the bottom of the piston, and the diameter of the end of the cone portion is smaller than the diameter of the other end thereof, and the end of the cone portion is also the bottom end of the cone portion; the caliber of the liquid inlet is larger than the diameter of the end of the cone portion, and smaller than the diameter of the other end of the cone portion. As the liquid level in the casting chamber of the continuous casting machine rises, the piston gradually descends, and the end of the cone portion can extend into the inner cavity of the liquid outlet pipe through the liquid inlet until the outer circumferential surface of the cone portion fits with the liquid inlet, thereby closing the liquid inlet. Providing a cone portion can enable the piston to be quickly positioned to the liquid inlet, so that the piston can smoothly block the liquid inlet. Moreover, the cone portion can achieve a closer contact with the liquid inlet, which can improve the sealing effect of the piston and prevent the metal liquid from leaking at the liquid inlet.

[0014] Preferably, a flared portion is provided on one side of the inner cavity of the liquid outlet pipe where the liquid inlet is located, the flared portion extends from the liquid inlet to the direction where the liquid outlet is located, and the diameter of one end of the flared portion close to the liquid inlet is larger than the diameter of the other end. Providing the flared portion can increase the contact area between the piston and the inner cavity of the liquid outlet pipe, effectively increase the sealing area, and further reduce the risk of metal liquid leakage.

[0015] Preferably, the piston is made of silicon nitride material. Silicon nitride material has good high temperature resistance and chemical inertness, and will not precipitate other chemical elements to pollute the molten metal when in contact with the molten metal for a long time. It also has high strength and good wear resistance, and has a long service life.

[0016] Preferably, a clamping part is provided on the outer circumferential surface of one end of the liquid outlet pipe where the liquid inlet is located, and a clamping groove is provided on the inner wall of the liquid adding chamber, and the clamping part is clamped with the clamping groove; the outer circumferential surface of the portion of the liquid outlet pipe connected to the diverter plate is in contact with the liquid adding chamber. The liquid outlet pipe can be separated from the diverter plate by separating the clamping part from the clamping groove. In this way, when the liquid outlet pipe is damaged, the liquid outlet pipe can be quickly removed from the diverter plate for repair or replacement.

[0017] A continuous casting assembly includes a crystallizer and a starter head, a casting cavity is formed between the starter head and the crystallizer, and the starter head and the crystallizer are slidably connected in a vertical direction; it also includes the aforementioned casting head, the diverter plate is connected to the crystallizer, and the liquid outlet and the first floating plate are both located in the casting cavity. In this technical solution, the molten metal flows into the casting cavity from the liquid outlet pipe on the diverter plate. During the casting process, the starter head descends several times to lower the liquid level in the casting cavity, thereby realizing continuous casting of the metal. The working process and principle of the casting head can be referred to the aforementioned content, so it will not be repeated here. It should be noted that the crystallizer and the starter head are both existing technologies, so the specific structure and working principle of the two will not be described in more detail here.

[0018] The beneficial effects of the utility model are as follows: by setting a first floating plate, a first lifting rod, a first rocking arm and a piston, the first floating plate and the first lifting rod are used to drive the first rocking arm to rotate as the liquid level in the casting cavity rises and falls, thereby driving the piston to rise and fall, and the on and off of the liquid outlet pipe is controlled by the lifting and falling of the piston. During the on and off control process of the liquid outlet pipe, the molten metal flowing out of the liquid outlet pipe will not flow through the end face of the liquid outlet pipe. Even if the end face of the liquid outlet pipe has defects such as wear or damage, the flow of the molten metal will not be affected, which is beneficial to improving the quality of the casting; a first limit ring is provided to limit the movement of the lifting rod in the horizontal direction, so that the first floating plate can be kept in a balanced state, which is beneficial to the precise control of the liquid level in the casting cavity; a guide cylinder is provided to limit the movement of the piston in the horizontal direction, so that the piston can be kept in a stable lifting and falling state without shaking or tilting, so that the liquid inlet of the liquid outlet pipe can be more smoothly blocked and opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a continuous casting assembly in the prior art;

[0020] Figure 2 It is a structural schematic diagram of embodiment 1 of a casting head and a continuous casting assembly thereof of the utility model;

[0021] Figure 3 It is a structural schematic diagram of Example 2 of a casting head and a continuous casting component thereof of the utility model.

[0022] In the accompanying drawings: 1-ingot head; 2-crystallizer; 201-casting cavity; 3-diverter plate; 301-liquid adding cavity; 302-card slot; 4-liquid outlet pipe; 401-liquid inlet; 402-liquid outlet; 403-expanding part; 404-clamping part; 5-floating plugging part; 501-guide part; 502-plugging part; 6-first floating plate; 7-first lifting rod; 8-first rocking arm; 9-piston; 901-conical part; 10-first limiting member; 11-first limiting collar; 12-guide cylinder; 13-guide rod; 14-first support column; 15-second floating plate; 16-second lifting rod; 17-second rocking arm; 18-second limiting member; 19-second limiting collar; 20-second support column. DETAILED DESCRIPTION

[0023] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0026] Example 1

[0027] like Figure 2 The casting head shown in the figure includes a diverter plate 3 and a liquid outlet pipe 4 connected to the diverter plate 3, a liquid adding chamber 301 is provided in the diverter plate 3, and a liquid inlet 401 and a liquid outlet 402 are provided at both ends of the liquid outlet pipe 4, the liquid inlet 401 is connected to the liquid adding chamber 301, and the liquid outlet 402 is located outside the diverter plate 3; it also includes a first floating plate 6, a first lifting rod 7, a first rocking arm 8 and a piston 9, the first floating plate 6 is parallel to the bottom surface of the diverter plate 3, the first lifting rod 7 is perpendicular to the first floating plate 6 and ... One end of the rod 7 is fixedly connected to the first floating plate 6, and the other end is rotatably connected to one end of the first rocker arm 8. The other end of the first rocker arm 8 is rotatably connected to the piston 9, and the first rocker arm 8 is also rotatably connected to the diverter plate 3; specifically, a first support column 14 is provided on the top of the diverter plate 3, and the first rocker arm 8 is rotatably connected to the top of the first support column 14, that is, the first rocker arm 8 is rotatably connected to the diverter plate 3 through the first support column 14; the piston 9 is located in the liquid adding chamber 301 and is used to block the liquid inlet 401 of the liquid outlet pipe 4.

[0028] Furthermore, a first limiting member 10 is provided on the diverter plate 3, a first limiting collar 11 is provided on the first limiting member 10, and the first lifting rod 7 passes through the inner cavity of the first limiting collar 11. The first limiting collar 11 can limit the range of motion of the first lifting rod 7 in the horizontal direction, so that the first lifting rod 7 can be kept in a vertical state as much as possible, and the first lifting rod 7 is prevented from shaking in the horizontal direction, causing the first floating plate 6 to lose balance and affect the precise control of the liquid level.

[0029] Furthermore, a guide cylinder 12 is provided on the diverter plate 3; a guide rod 13 is provided on the top of the piston 9, one end of the guide rod 13 passes through the inner cavity of the guide cylinder 12 and part of the guide rod 13 is slidably connected with the inner cavity of the guide cylinder 12 along the vertical direction; one end of the first rocker 8 is rotatably connected with the guide rod 13, that is, one end of the first rocker 8 is rotatably connected with the piston 9 through the guide rod 13. During the rotation of the rocker, the guide rod 13 slides up and down along the inner cavity of the guide cylinder 12, so that the piston 9 keeps moving in the vertical direction. The provision of the guide rod 13 and the guide cylinder 12 can limit the range of motion of the piston 9 in the horizontal direction, so that the piston 9 keeps rising and falling smoothly, and the liquid inlet 401 is smoothly blocked and opened.

[0030] Specifically, the piston 9 is cylindrical, and the axis of the guide rod 13 coincides with the axis of the piston 9. The movement of the cylindrical piston 9 is relatively stable, and it is not easy to tilt or swing, and the cylindrical piston 9 is easier to process than pistons 9 of other shapes.

[0031] Furthermore, the bottom of the piston 9 is provided with a conical portion 901, the diameter of the end of the conical portion 901 is smaller than the diameter of the other end thereof, and the end of the conical portion 901 is also the bottom of the conical portion 901; the caliber of the liquid inlet 401 is larger than the diameter of the end of the conical portion 901, and smaller than the diameter of the other end of the conical portion 901. As the liquid level of the casting cavity 201 of the continuous casting machine rises, the piston 9 gradually descends, and the end of the conical portion 901 can extend into the inner cavity of the liquid outlet pipe 4 through the liquid inlet 401, until the outer circumferential surface of the conical portion 901 fits with the liquid inlet 401, thereby closing the liquid inlet 401. The provision of the conical portion 901 can enable the piston 9 to be quickly positioned to the liquid inlet 401, so that the piston 9 can smoothly block the liquid inlet 401. Moreover, the conical portion 901 can achieve a closer contact with the liquid inlet 401, which can improve the sealing effect of the piston 9 and prevent the metal liquid from leaking at the liquid inlet 401.

[0032] Furthermore, a flared portion 403 is provided on one side of the inner cavity of the liquid outlet pipe 4 where the liquid inlet 401 is located, and the flared portion 403 extends from the liquid inlet 401 to the direction where the liquid outlet 402 is located, and the diameter of the flared portion 403 at one end close to the liquid inlet 401 is larger than the diameter of the other end. The flared portion 403 can increase the contact area between the piston 9 and the inner cavity of the liquid outlet pipe 4, effectively increase the sealing area, and further reduce the risk of metal liquid leakage.

[0033] Specifically, the piston 9 is made of silicon nitride material, which has good high temperature resistance and chemical inertness, and will not precipitate other chemical elements to pollute the molten metal when in contact with the molten metal for a long time, and has high strength and good wear resistance, and has a long service life.

[0034] Furthermore, a clamping portion 404 is provided on the outer circumferential surface of one end of the liquid outlet pipe 4 where the liquid inlet 401 is located, and a clamping groove 302 is provided on the inner wall of the liquid adding chamber 301, and the clamping portion 404 is clamped with the clamping groove 302; the outer circumferential surface of the portion of the liquid outlet pipe 4 connected to the diverter plate 3 is in contact with the liquid adding chamber 301. The liquid outlet pipe 4 can be separated from the diverter plate 3 by separating the clamping portion 404 from the clamping groove 302. In this way, when the liquid outlet pipe 4 is damaged, the liquid outlet pipe 4 can be quickly removed from the diverter plate 3 for repair or replacement.

[0035] The working principle or workflow of this embodiment is as follows: the molten metal enters the liquid outlet pipe 4 from the liquid adding chamber 301 through the liquid inlet 401, and then enters the casting chamber 201 of the continuous casting machine through the liquid outlet 402. As the liquid level in the casting chamber 201 rises, the first floating plate 6, the first lifting rod 7, and the first rocker 8 connected to the end of the first lifting rod 7 rise together, causing the first rocker 8 to rotate relative to the diverter plate 3, and the end of the first rocker 8 connected to the piston 9 descends, thereby causing the piston 9 to descend. When the first floating plate 6 rises to a certain height along with the liquid level in the casting chamber 201, the piston 9 descends to block the liquid inlet 401 of the liquid outlet pipe 4, thereby preventing the molten metal in the liquid adding chamber 301 from entering the liquid inlet 401 of the liquid outlet pipe 4. After the liquid level in the casting chamber 201 of the continuous casting machine drops, the first floating plate 6, the first lifting rod 7 and the first rocker 8 connected to the end of the first lifting rod 7 drop together, so that the first rocker 8 rotates relative to the diverter plate 3, and the other end of the first rocker 8 rises, so that the piston 9 rises to be separated from the liquid inlet 401, and the molten metal in the liquid adding chamber 301 passes through the liquid inlet 401 again. This technical solution uses the lifting and lowering of the piston 9 to control the on and off of the liquid outlet pipe 4. Since the flow direction of the molten metal flowing out of the liquid outlet 402 is in the axial direction of the liquid outlet pipe 4, rather than in a direction perpendicular to the axis of the liquid outlet pipe 4, the molten metal does not need to flow through the end of the liquid outlet pipe 4. Even if the end of the liquid outlet pipe 4 is worn or abraded, the flow of the molten metal will not be affected, thereby avoiding defects such as cold shut or cracking of the casting.

[0036] The beneficial effects of this embodiment are as follows: by setting a first floating plate, a first lifting rod, a first rocking arm and a piston, the first floating plate and the first lifting rod are used to drive the first rocking arm to rotate as the liquid level in the casting cavity rises and falls, thereby driving the piston to rise and fall, and the on and off of the liquid outlet pipe is controlled by the lifting and falling of the piston. During the on and off control process of the liquid outlet pipe, the molten metal flowing out of the liquid outlet pipe will not flow through the end face of the liquid outlet pipe. Even if the end face of the liquid outlet pipe has defects such as wear or damage, the flow of the molten metal will not be affected, which is beneficial to improving the quality of the casting; a first limit ring is provided to limit the horizontal movement of the lifting rod, so that the first floating plate can be kept in a balanced state, which is beneficial to the precise control of the liquid level in the casting cavity; a guide cylinder is provided to limit the horizontal movement of the piston, so that the piston can be kept in a stable lifting and falling state without shaking or tilting, so that the liquid inlet of the liquid outlet pipe can be more smoothly blocked and opened.

[0037] Example 2

[0038] This embodiment is a casting head, which is similar to the embodiment 1, except that Figure 3 As shown, it also includes a second floating plate 15, a second lifting rod 16 and a second rocker arm 17. A second limiting piece 18 is provided on the diverter plate 3, and a second limiting ring 19 is provided on the second limiting piece 18; the second floating plate 15 and the first floating plate 6 are respectively located on opposite sides of the diverter plate 3, the second lifting rod 16 is perpendicular to the second floating plate 15 and one end of the second lifting rod 16 is fixedly connected to the second floating plate 15, and the other end passes through the inner cavity of the second limiting ring 19 and is rotatably connected to one end of the second rocker arm 17; the other end of the second rocker arm 17 is rotatably connected to the guide rod 13; the second rocker arm 17 is also rotatably connected to the diverter plate 3, specifically, a second support column 20 is provided on the top of the diverter plate 3, and the second rocker arm 17 is rotatably connected to the top of the second support column 20, that is, the second rocker arm 17 is rotatably connected to the diverter plate 3 through the second support column 20. The functions and working principles of the second floating plate 15, the second lifting rod 16, the second rocker 17, and the second limiting ring 19 are respectively the same as those of the first floating plate 6, the first lifting rod 7, the first rocker 8, and the first limiting ring 11, so they are not described in detail. It can be understood that the second floating plate 15, the second lifting rod 16, and the second rocker 17 can reduce the load of the first rocker 8, which is conducive to further improving the stability of the lifting of the piston 9.

[0039] The other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 1.

[0040] Example 3

[0041] A continuously cast component, such as Figure 2 or Figure 3 As shown, it includes a crystallizer 2 and a starter head 1, a casting cavity 201 is formed between the starter head 1 and the crystallizer 2, and the starter head 1 and the crystallizer 2 are slidably connected along the vertical direction; it also includes the casting head of Example 1 or Example 2, the diverter plate 3 is connected to the crystallizer 2, and the liquid outlet 402 and the first floating plate 6 are both located in the casting cavity 201.

[0042] The working principle or workflow of this embodiment is as follows: the molten metal flows into the casting cavity 201 from the liquid outlet pipe 4 on the diverter plate 3. During the casting process, the starter head 1 descends several times to lower the liquid level in the casting cavity 201, thereby realizing continuous casting of the metal. The working process and principle of the casting head can be referred to the previous content, so it will not be repeated here. It should be noted that the crystallizer 2 and the starter head 1 are both prior art, so the specific structure and working principle of the two will not be described in more detail here.

[0043] Other features, working principles and beneficial effects of this embodiment are consistent with those of Embodiment 1 or 2.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description, and it is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A casting head, comprising a diverter plate (3) and a liquid outlet pipe (4) connected to the diverter plate (3), wherein a liquid adding cavity (301) is provided in the diverter plate (3), and a liquid inlet (401) and a liquid outlet (402) are respectively provided at both ends of the liquid outlet pipe (4), wherein the liquid inlet (401) is communicated with the liquid adding cavity (301), and the liquid outlet (402) is located outside the diverter plate (3), characterized in that: It also comprises a first floating plate (6), a first lifting rod (7), a first rocking arm (8) and a piston (9), wherein the first floating plate (6) is parallel to the bottom surface of the diverter plate (3), the first lifting rod (7) is perpendicular to the first floating plate (6), one end of the first lifting rod (7) is fixedly connected to the first floating plate (6), and the other end of the first lifting rod (7) is rotatably connected to one end of the first rocking arm (8); the other end of the first rocking arm (8) is rotatably connected to the piston (9), and the first rocking arm (8) is also rotatably connected to the diverter plate (3); the piston (9) is located in the liquid adding chamber (301) and is used to block the liquid inlet (401) of the liquid outlet pipe (4).

2. A casting head according to claim 1, characterized in that: The diverter plate (3) is provided with a first limiting member (10), the first limiting member (10) is provided with a first limiting ring (11), and the first lifting rod (7) passes through the inner cavity of the first limiting ring (11).

3. A casting head according to claim 2, characterized in that: A guide cylinder (12) is provided on the diverter plate (3); a guide rod (13) is provided on the top of the piston (9), and at least a portion of the guide rod (13) extends into the inner cavity of the guide cylinder (12) and is slidably connected to the inner cavity of the guide cylinder (12) along a vertical direction; one end of the first rocker (8) is rotatably connected to the guide rod (13).

4. A casting head according to claim 3, characterized in that: It also comprises a second floating plate (15), a second lifting rod (16) and a second rocker (17); the diverter plate (3) is provided with a second limiting member (18), and the second limiting member (18) is provided with a second limiting ring (19); the second floating plate (15) and the first floating plate (6) are respectively located on opposite sides of the diverter plate (3); the second lifting rod (16) is perpendicular to the second floating plate (15); one end of the second lifting rod (16) is fixedly connected to the second floating plate (15), and the other end passes through the inner cavity of the second limiting ring (19) and is rotatably connected to one end of the second rocker (17); the other end of the second rocker (17) is rotatably connected to the guide rod (13), and the second rocker (17) is also rotatably connected to the diverter plate (3).

5. A casting head according to claim 3, characterized in that: The piston (9) is cylindrical, and the axis of the guide rod (13) coincides with the axis of the piston (9).

6. A casting head according to claim 1, characterized in that: The bottom of the piston (9) is provided with a conical portion (901), and the diameter of the end of the conical portion (901) is smaller than the diameter of the other end thereof; the caliber of the liquid inlet (401) is larger than the diameter of the end of the conical portion (901) and smaller than the diameter of the other end of the conical portion (901).

7. A casting head according to claim 6, characterized in that: A flared portion (403) is provided on one side of the inner cavity of the liquid outlet pipe (4) where the liquid inlet (401) is located. The flared portion (403) extends from the liquid inlet (401) in the direction where the liquid outlet (402) is located. The diameter of one end of the flared portion (403) close to the liquid inlet (401) is larger than the diameter of the other end.

8. A casting head according to claim 1, characterized in that: The piston (9) is made of silicon nitride material.

9. A casting head according to claim 1, characterized in that: A clamping portion (404) is provided on the outer circumferential surface of one end of the liquid outlet pipe (4) where the liquid inlet (401) is located, and a clamping groove (302) is provided on the inner wall of the liquid adding chamber (301), and the clamping portion (404) is clamped with the clamping groove (302); the outer circumferential surface of the portion of the liquid outlet pipe (4) connected to the diverter plate (3) is in contact with the liquid adding chamber (301).

10. A continuous casting assembly, comprising a crystallizer (2) and a starter head (1), wherein a casting cavity (201) is formed between the starter head (1) and the crystallizer (2), and the starter head (1) and the crystallizer (2) are slidably connected along a vertical direction; characterized in that: It also comprises a casting head as claimed in any one of claims 1 to 9, wherein the diverter plate (3) is connected to the crystallizer (2), and the liquid outlet (402) and the first floating plate (6) are both located in the casting cavity (201).

Images