A production device for preparing metal thin strip

Abstract

The present invention belongs to the technical field of metal strip preparation, and specifically relates to a production device for preparing metal thin strips, comprising a casting box, a spray box and a support frame, wherein the casting box and the spray box are both fixed on the support frame, the spray box is located below the casting box, and a flow guide device is provided between the casting box and the spray box, and the flow guide device is fixed on the spray box; the present invention can facilitate the maintenance and replacement of the stopper rod; at the same time, the conical plug of the stopper rod can be more easily pulled out from the flow guide port by the self-rotation of the stopper rod, so as to prevent the stopper rod from being difficult to pull out due to solidification due to temperature difference; the present invention can prevent molten aluminum from accumulating at the bottom of the casting box; the present invention effectively controls the quality of molten aluminum, prevents accidents, and improves safety performance.

Description

Technical Field

[0001] The invention belongs to the technical field of metal strip preparation, and in particular relates to a production device for preparing metal thin strips. Background Art

[0002] Metal strip is a metal strip with a specific thickness range. The metal strip preparation technology is widely used in many fields, such as aluminum alloy strip applications. Its continuous research and development is expected to promote innovation in the field of materials science and engineering. In the process of metal strip production and preparation, continuous production is usually carried out in the form of spraying strips.

[0003] The Chinese patent application number CN01814895.6 discloses a tundish for pouring molten metal into a strip casting machine, which has a tundish body for accommodating molten metal and a pouring nozzle arranged on the bottom of the tundish and having a nozzle pipe, through which the molten metal is introduced between the casting rollers of the strip casting machine. The inner cavity of the tundish is divided into at least two chambers connected to each other through a connecting port, and the molten metal can be filled into one of the chambers, while the other chamber is equipped with a pouring nozzle, wherein the amount of molten metal flowing from one chamber to the other chamber can be controlled by means of a control valve at the connecting port, especially the liquid pool height in the chamber with the pouring nozzle is lower than the liquid pool height in the other chamber during the casting process.

[0004] In the process of preparing metal strips, how to effectively control the composition and quality of the materials is a more important research direction. At the same time, when producing metal strips, the stopper rods and casting boxes need to be maintained or replaced, which will greatly affect the production efficiency and lead to poor production capacity. Summary of the invention

[0005] In order to solve the shortcomings of the prior art, the present invention provides a production device for preparing metal thin strips. The present invention can facilitate the maintenance and replacement of the stopper rod; at the same time, the conical plug of the stopper rod can be more easily pulled out from the guide port by the self-rotation of the stopper rod, thereby preventing the stopper rod from being difficult to pull out due to solidification caused by temperature differences; the present invention can prevent molten aluminum from accumulating at the bottom of the casting box; the present invention effectively controls the quality of molten aluminum, prevents accidents from occurring, and improves safety performance.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A production device for preparing a metal thin strip, comprising a casting box, a spray box and a support frame, wherein the casting box and the spray box are both fixed on the support frame, the spray box is located below the casting box, a flow guide device is provided between the casting box and the spray box, and the flow guide device is fixed on the spray box;

[0008] The casting box includes a casting box cover and a casting box body, the casting box cover is plugged into the casting box body, the bottom of the casting box body is a conical bottom, and a guide port is fixedly connected in the middle below the conical bottom; a feed pipe is provided on the casting box cover, and a limiting hole is provided in the middle of the casting box cover, and a control device is movably inserted in the limiting hole to control the drainage of the casting box.

[0009] Preferably, the control device comprises a first limit plate and a second limit plate, one end of the first limit plate and the second limit plate are connected by a hinged manner, and the other end is connected by a lock; when the first limit plate and the second limit plate are locked together, a limit groove is formed in the middle; a first cylinder is fixedly installed on the top of the casting box cover, and the telescopic end of the first cylinder is fixedly connected to the bottom of the second limit plate; a first motor is fixedly installed on the top of the second limit plate, and a first bevel gear is fixedly connected to the output shaft of the first motor;

[0010] The control device also includes a stopper rod, the upper end of which is fixedly connected to a second bevel gear, which is meshed with the first bevel gear; a limit ring is fixedly provided above the side wall of the stopper rod, and the limit ring is rotatably connected to the limit groove; the stopper rod is movably inserted into the limit hole of the casting box cover.

[0011] More preferably, a conical plug is provided at the lower end of the stopper rod; a conical stirring disk is fixedly connected to the top of the conical plug, and the conical stirring disk can fit with the conical bottom of the casting box; and leaks are evenly opened on the conical stirring disk.

[0012] More preferably, the inner diameter of the guide port first decreases and then increases from top to bottom; and the conical plug is matched with the upper end of the guide port.

[0013] Preferably, the flow guide device includes a three-way flow guide tube and a support plate, both side walls of the three-way flow guide tube are rotatably connected to the support plate via a rotating shaft, and the support plate is fixedly connected to the top of the spray box; the outer end of the rotating shaft on one side of the three-way flow guide tube is fixedly connected to a manual turntable, and the outer end of the rotating shaft on the other side of the three-way flow guide tube is fixedly connected to the output shaft of the second motor, and the second motor is fixedly mounted on the support plate.

[0014] More preferably, the three-way flow guide tube is composed of a square tube structure, and a rotating groove is provided at the internal corner of the three-way flow guide tube, and the rotating groove is rotatably connected to a guide plate; the length of the guide plate is greater than the inner side length of the three-way flow guide tube, and the width of the guide plate is the same as the inner side length of the three-way flow guide tube.

[0015] More preferably, the spray belt box comprises an upper spray belt box and a lower spray belt box which are interconnected, wherein the upper spray belt box is connected with a spray belt box feed pipe, and the spray belt box feed pipe and the guide port are both adapted to the pipe port of the three-way guide pipe; and a nozzle is provided at the bottom of the lower spray belt box.

[0016] More preferably, a liquid level sensor is fixedly connected to the upper spray belt box, and the liquid level sensor extends into the interior of the upper spray belt box.

[0017] Preferably, a second cylinder is symmetrically fixedly installed on the side wall of the casting box body, and the telescopic ends of the two second cylinders are respectively fixedly connected to the two ends of the casting box cover; a third motor is also fixedly installed on the casting box cover, and the output shaft of the third motor is fixedly connected to the feed insulation cover, and the feed insulation cover is located above the feed pipe.

[0018] Preferably, a temperature sensor is fixedly connected to the casting box cover, and the temperature sensor extends into the interior of the casting box body; the casting box body is also provided with a heating device for heating the interior of the casting box body.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention can limit the stopper rod by the limiting groove and enable the limiting ring of the stopper rod to be rotatably connected to the limiting groove through the coordinated design of the first limiting plate and the second limiting plate, and can also facilitate the maintenance and replacement of the stopper rod; at the same time, the present invention can control the rise and fall of the stopper rod and enable the stopper rod to rotate by arranging a first motor on the second limiting plate, through the meshing design of the first bevel gear and the second bevel gear, and arranging a first cylinder under the second limiting plate; while controlling the outflow speed of the molten aluminum in the casting box, the stopper rod can also rotate by itself so that the conical plug of the stopper rod can be more easily pulled out from the guide port, thereby preventing the stopper rod from being difficult to pull out due to solidification caused by temperature difference.

[0021] (2) The structural design of the conical stirring plate of the present invention can further improve the sealing performance of the conical plug and prevent the leakage of molten aluminum. At the same time, the movement of the conical stirring plate in conjunction with the stopper rod can effectively stir the molten aluminum at the bottom of the casting box to ensure the uniformity of the composition of the molten aluminum and thus improve the quality. The conical stirring plate fits the conical bottom to prevent the molten aluminum from accumulating at the bottom of the casting box and causing difficulties in subsequent maintenance. The conical stirring plate can also effectively scrape the conical bottom to further reduce the accumulation at the bottom of the casting box.

[0022] (3) The present invention can flexibly control the molten aluminum flowing out of the diversion port of the casting box through the structural design of the diversion device. Through the ingenious structure of the diversion plate, when the three-way diversion tube is rotated by the second motor or the manual turntable, the diversion plate will rotate due to gravity, so that the molten aluminum flowing out of the diversion port of the casting box flows out from the specific pipe opening of the three-way diversion tube; when it is necessary to sample the molten aluminum, the molten aluminum can be made to flow out from the side pipe opening by rotating the three-way diversion tube, so as to perform sampling and effectively control the quality of the molten aluminum; when it is necessary to guide qualified molten aluminum into the spray box, the molten aluminum can be directly flowed from the casting box into the spray box under the diversion effect of the diversion plate by rotating the three-way diversion tube; when the casting box leaks, the leaked molten aluminum can be made to flow out from the side pipe opening and then flow into the emergency trough by rotating the three-way diversion tube, so as to prevent accidents and improve safety performance.

[0023] (4) The present invention can mix the molten aluminum evenly through the conical stirring plate of the stopper rod, thereby effectively controlling the quality of the molten aluminum. The stopper rod and the three-way guide tube can flexibly sample the molten aluminum in the casting box, further effectively controlling the quality of the molten aluminum. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a production device for preparing a metal thin strip according to the present invention;

[0025] Figure 2 A schematic diagram of the dispersed structure of a production device for preparing a metal thin strip according to the present invention;

[0026] Figure 3 A schematic diagram of the structure of a casting box of a production device for preparing a metal thin strip according to the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of a guide port of a production device for preparing a metal thin strip according to the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of a control device of a production device for preparing a metal thin strip according to the present invention;

[0029] Figure 6 It is a partial structural schematic diagram of a control device of a production device for preparing a metal thin strip according to the present invention;

[0030] Figure 7 This is a schematic structural diagram of a flow guide device of a production device for preparing a metal thin strip according to the present invention;

[0031] Figure 8 A schematic cross-sectional view of a flow guide device of a production device for preparing a metal thin strip according to the present invention;

[0032] Fig. 9The present invention is a schematic diagram of the structure of a strip spraying box of a production device for preparing metal thin strips.

[0033] The reference numerals are as follows:

[0034] Casting box, 100; casting box cover, 110; limiting hole, 111; casting box body, 120; conical bottom, 121; guide port, 122; temperature sensor, 130; feed pipe, 140; third motor, 141; feed insulation cover, 142; second cylinder, 150; heating device, 160; guide device, 200; three-way guide pipe, 210; rotating groove, 211; guide plate, 212; support plate, 220; second motor, 230; manual turntable, 240; spray belt Box, 300; upper spray box, 310; spray box feed pipe, 320; liquid level sensor, 330; lower spray box, 340; nozzle, 350; support frame, 400; control device, 500; first limit plate, 510; second limit plate, 520; first cylinder, 530; first motor, 540; first bevel gear, 550; limit groove, 560; second bevel gear, 570; stopper rod, 580; limit ring, 581; conical plug, 582; conical stirring disc, 583. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0036] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items.

[0037] Example

[0038] like Figures 1 to 9 As shown, a production device for preparing a metal thin strip includes a casting box 100, a spray box 300 and a support frame 400, wherein the casting box 100 and the spray box 300 are both fixed on the support frame 400, the spray box 300 is located below the casting box 100, and a guide device 200 is provided between the casting box 100 and the spray box 300, and the guide device 200 is fixed on the spray box 300;

[0039] The casting box 100 includes a casting box cover 110 and a casting box body 120. The casting box cover 110 is plugged into the casting box body 120. The bottom of the casting box body 120 is a conical bottom 121. A guide port 122 is fixedly connected to the middle below the conical bottom 121. A feed pipe 140 is provided on the casting box cover 110. A limiting hole 111 is provided in the middle of the casting box cover 110. A control device 500 is movably inserted into the limiting hole 111 to control the drainage of the casting box 100.

[0040] It is worth noting that the molten aluminum flows into the feed pipe 140 through the external flow trough, and alloy materials can also be added through the feed pipe to improve the composition of the metal strip and control and improve the quality of the metal strip.

[0041] Preferably, the control device 500 includes a first limit plate 510 and a second limit plate 520, one end of the first limit plate 510 and the second limit plate 520 are connected by a hinged manner, and the other end is connected by a lock; when the first limit plate 510 and the second limit plate 520 are locked together, a limit groove 560 is formed in the middle; a first cylinder 530 is fixedly installed on the top of the casting box cover 110, and the telescopic end of the first cylinder 530 is fixedly connected to the bottom of the second limit plate 520; a first motor 540 is fixedly installed on the top of the second limit plate 520, and a first bevel gear 550 is fixedly connected to the output shaft of the first motor 540;

[0042] It is worth noting that the first cylinder 530 and the following motors and other devices are all controlled by external power supplies and switches, and will not be described in detail here.

[0043] The control device 500 also includes a stopper rod 580, the upper end of which is fixedly connected to a second bevel gear 570, which is meshed with the first bevel gear 550; a limiting ring 581 is fixedly provided on the upper side wall of the stopper rod 580, and the limiting ring 581 is rotatably connected to the limiting groove 560; the stopper rod 580 is movably inserted into the limiting hole of the casting box cover 110.

[0044] It is worth noting that the stopper rod 580 is used to block the guide port 122 of the casting box 100 to control the flow. The first motor 540 controls the first bevel gear 550 to rotate, thereby driving the second bevel gear 570 to rotate, and the stopper rod 580 rotates in the limit groove 560 through the limit ring 581, thereby realizing the self-rotation of the stopper rod 580.

[0045] Furthermore, the fixed connection between the second bevel gear 570 and the stopper rod 580 can be a threaded connection, which is convenient for disassembly and replacement.

[0046] It is worth noting that when the stopper rod 580 needs to be maintained or replaced, the first limiting plate 510 and the second limiting plate 520 can be opened to facilitate the removal of the stopper rod 580 , thereby facilitating the maintenance and replacement of the stopper rod 580 .

[0047] More preferably, the lower end of the stopper rod 580 is provided with a conical plug 582; a conical stirring disk 583 is fixedly connected above the conical plug 582, and the conical stirring disk 583 can fit with the conical bottom 121 of the casting box 120; and leaks are evenly opened on the conical stirring disk 583. The leaks can promote the downward circulation of aluminum liquid on the conical stirring disk 583, thereby reducing the obstruction of the conical stirring disk 583.

[0048] The present invention can limit the stopper rod 580 by the limiting groove 560 and enable the limiting ring 581 of the stopper rod 580 to be rotatably connected with the limiting groove 560 through the coordinated design of the first limiting plate 510 and the second limiting plate 520, and can also facilitate the maintenance and replacement of the stopper rod 580; at the same time, the present invention can control the rise and fall of the stopper rod 580 and enable the stopper rod 580 to rotate by arranging the first motor 540 on the second limiting plate 520, through the meshing design of the first bevel gear 550 and the second bevel gear 570, and arranging the first cylinder 530 under the second limiting plate 520; while controlling the outflow speed of the aluminum liquid in the casting box 100, the conical plug 582 of the stopper rod 580 can be more easily pulled out from the guide port 122 by the rotation of the stopper rod 580, so as to prevent the stopper rod 580 from being difficult to pull out due to solidification due to temperature difference.

[0049] The structural design of the conical stirring plate 583 of the present invention can further improve the sealing performance of the conical plug 582 to prevent leakage of molten aluminum. At the same time, the conical stirring plate 583 cooperates with the movement of the stopper rod 580 to effectively stir the molten aluminum at the bottom of the casting box 100 to ensure the uniformity of the composition of the molten aluminum and thus improve the quality. The conical stirring plate 583 fits the conical bottom 121 so that the molten aluminum is not easily accumulated at the bottom of the casting box 100, causing difficulties in subsequent maintenance, and the conical stirring plate 583 can also effectively scrape the conical bottom 121 to further reduce the accumulation phenomenon at the bottom of the casting box 100.

[0050] More preferably, the inner diameter of the guide port 122 first decreases and then increases from top to bottom; the conical plug 582 is matched with the upper end of the guide port 122.

[0051] It is worth noting that the structural design of the guide port 122 in conjunction with the stopper rod 580 can improve safety performance and reduce the possibility of aluminum liquid leakage.

[0052] Preferably, the flow guide device 200 includes a three-way flow guide tube 210 and a support plate 220, both side walls of the three-way flow guide tube 210 are rotatably connected to the support plate 220 through a rotating shaft, and the support plate 220 is fixedly connected to the top of the spray box 300; the outer end of the rotating shaft on one side of the three-way flow guide tube 210 is fixedly connected to a manual turntable 240, and the outer end of the rotating shaft on the other side of the three-way flow guide tube 210 is fixedly connected to the output shaft of the second motor 230, and the second motor 230 is fixedly mounted on the support plate 220.

[0053] It is worth mentioning that the three-way flow guide tube 210 can be rotated by controlling the second motor 230 to adjust the direction; the second motor 230 is a stepping motor, which can accurately control the rotation angle and limit the three-way flow guide tube 210; when an emergency occurs, the direction of the three-way flow guide tube 210 can be adjusted by temporarily manually rotating the manual turntable 240.

[0054] More preferably, the three-way flow guide tube 210 is composed of a square tube structure, and a rotating groove 211 is provided at the internal corner of the three-way flow guide tube 210, and the rotating groove 211 is rotatably connected to a guide plate 212; the length of the guide plate 212 is greater than the inner side length of the three-way flow guide tube 210, and the width of the guide plate 212 is the same as the inner side length of the three-way flow guide tube 210.

[0055] More preferably, the spray box 300 includes an upper spray box 310 and a lower spray box 340 which are connected to each other, wherein the upper spray box 310 is connected with a spray box feed pipe 320, and the spray box feed pipe 320 and the guide port 122 are both adapted to the pipe port of the three-way guide pipe 210; and a nozzle 350 is provided at the bottom of the lower spray box 340. The aluminum liquid is sprayed out through the nozzle 350, thereby preparing a metal thin strip.

[0056] The present invention can flexibly control the aluminum liquid flowing out of the diversion port 122 of the casting box 100 through the structural design of the diversion device 200. Through the ingenious structure of the diversion plate 212, when the three-way diversion pipe 210 is rotated by the second motor 230 or the manual turntable 240, the diversion plate 212 will rotate due to gravity, so that the aluminum liquid flowing out of the diversion port 122 of the casting box 100 flows out from a specific pipe opening of the three-way diversion pipe 210; when it is necessary to sample the aluminum liquid, the three-way diversion pipe 210 is rotated to make the aluminum liquid flow out of the diversion port 122 of the casting box 100. Water flows out from the side pipe opening, so as to take samples and effectively control the quality of molten aluminum. When it is necessary to guide qualified molten aluminum into the spray box 300, by rotating the three-way guide pipe 210, under the guiding effect of the guide plate 212, the molten aluminum directly flows from the casting box 100 into the spray box 300. When the casting box 100 leaks, the three-way guide pipe 210 can be rotated to make the leaked molten aluminum flow out from the side pipe opening and then flow into the emergency tank, thereby preventing accidents and improving safety performance.

[0057] It is worth noting that flow troughs and emergency troughs are provided on both sides of the three-way diversion tube 210 to facilitate sampling and diversion emergencies.

[0058] The present invention can mix the molten aluminum evenly through the conical stirring disk 583 of the stopper rod 580, thereby effectively controlling the quality of the molten aluminum. The cooperation of the stopper rod 580 and the three-way guide tube 210 can flexibly sample the molten aluminum in the casting box 100, further effectively controlling the quality of the molten aluminum.

[0059] More preferably, a liquid level sensor 330 is fixedly connected to the upper spray belt box 310 , and the liquid level sensor 330 extends into the interior of the upper spray belt box 310 .

[0060] It is worth mentioning that the liquid level sensor 330 can effectively monitor the liquid level height of the molten aluminum in the spray box 300, thereby effectively controlling the outflow speed of the molten aluminum and preventing the occurrence of too much or too little molten aluminum. The liquid level sensor 330 is an existing mature technology and will not be described in detail here.

[0061] Preferably, a second cylinder 150 is symmetrically fixedly installed on the side wall of the casting box body 120, and the telescopic ends of the two second cylinders 150 are respectively fixedly connected to the two ends of the casting box cover 110; a third motor 141 is also fixedly installed on the casting box cover 110, and the output shaft of the third motor 141 is fixedly connected to the feed insulation cover 142, and the feed insulation cover 142 is located above the feed pipe 140.

[0062] The second cylinder 150 can control the closing and opening of the casting box cover 110, and the third motor 141 can control the feeding insulation cover 142 to close or open the feeding pipe 140, which is convenient for feeding and can effectively keep warm.

[0063] Preferably, a temperature sensor 130 is fixedly connected to the casting box cover 110 , and the temperature sensor 130 extends into the interior of the casting box body 120 ; the casting box body 120 is also provided with a heating device 160 for heating the interior of the casting box body 120 .

[0064] It is worth noting that the temperature sensor 130 can monitor whether the temperature of the aluminum liquid in the casting box 100 meets the standard, and start the heating device 160 to control the temperature of the aluminum liquid according to the specific situation. A layer of insulation layer can also be set outside the casting box 100 and the spray box 300 to effectively control the temperature. The temperature sensor 130 and the heating device 160 are existing mature technologies and are not described in detail here.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A production device for preparing a metal strip, characterized in that: The invention comprises a casting box (100), a spray box (300) and a support frame (400), wherein the casting box (100) and the spray box (300) are both fixed on the support frame (400), the spray box (300) is located below the casting box (100), a flow guide device (200) is provided between the casting box (100) and the spray box (300), and the flow guide device (200) is fixed on the spray box (300); The casting box (100) comprises a casting box cover (110) and a casting box body (120); the casting box cover (110) is plugged into the casting box body (120); the bottom of the casting box body (120) is a conical bottom (121); a guide port (122) is fixedly connected to the middle of the lower part of the conical bottom (121); a feed pipe (140) is provided on the casting box cover (110); a limiting hole (111) is provided in the middle of the casting box cover (110); a control device (500) is movably plugged into the limiting hole (111) for controlling the drainage of the casting box (100); The control device (500) comprises a first limit plate (510) and a second limit plate (520), one end of the first limit plate (510) and the second limit plate (520) are connected by hinged connection, and the other end is connected by locking; when the first limit plate (510) and the second limit plate (520) are locked together, a limit groove (560) is formed in the middle; a first cylinder (530) is fixedly mounted on the top of the casting box cover (110), and the telescopic end of the first cylinder (530) is fixedly connected to the bottom of the second limit plate (520); a first motor (540) is fixedly mounted on the top of the second limit plate (520), and a first bevel gear (550) is fixedly connected to the output shaft of the first motor (540); The control device (500) further comprises a stopper rod (580), the upper end of the stopper rod (580) being fixedly connected to a second bevel gear (570), the second bevel gear (570) being meshed with the first bevel gear (550); a limiting ring (581) being fixedly provided above the side wall of the stopper rod (580), the limiting ring (581) being rotatably connected to the limiting groove (560); the stopper rod (580) being movably inserted into the limiting hole of the casting box cover (110); The flow guide device (200) comprises a three-way flow guide tube (210) and a support plate (220); both side walls of the three-way flow guide tube (210) are rotatably connected to the support plate (220) via a rotating shaft; the support plate (220) is fixedly connected to the top of the spray box (300); the outer end of the rotating shaft on one side of the three-way flow guide tube (210) is fixedly connected to a manual turntable (240); the outer end of the rotating shaft on the other side of the three-way flow guide tube (210) is fixedly connected to the output shaft of a second motor (230); and the second motor (230) is fixedly mounted on the support plate (220); The three-way flow guide tube (210) is composed of a square tube structure. A rotation groove (211) is provided at an inner corner of the three-way flow guide tube (210). The rotation groove (211) is rotatably connected to a flow guide plate (212). The length of the flow guide plate (212) is greater than the inner side length of the three-way flow guide tube (210), and the width of the flow guide plate (212) is the same as the inner side length of the three-way flow guide tube (210). The spray belt box (300) comprises an upper spray belt box (310) and a lower spray belt box (340) which are connected to each other. The upper spray belt box (310) is provided with a spray belt box feed pipe (320) which is connected to the upper spray belt box. The spray belt box feed pipe (320) and the flow guide port (122) are both compatible with the pipe port of the three-way flow guide pipe (210). The bottom of the lower spray belt box (340) is provided with a nozzle (350).

2. A production device for preparing a metal strip according to claim 1, characterized in that: A conical plug (582) is provided at the lower end of the stopper rod (580); a conical stirring disc (583) is fixedly connected to the top of the conical plug (582); the conical stirring disc (583) can fit with the conical bottom (121) of the casting box (120); and leaking holes are evenly opened on the conical stirring disc (583).

3. A production device for preparing a metal strip according to claim 2, characterized in that: The inner diameter of the guide port (122) first decreases and then increases from top to bottom; the conical plug (582) is adapted to the upper end of the guide port (122).

4. A production device for preparing a metal strip according to claim 1, characterized in that: A liquid level sensor (330) is fixedly connected to the upper spray belt box (310), and the liquid level sensor (330) extends into the interior of the upper spray belt box (310).

5. A production device for preparing a metal strip according to claim 1, characterized in that: Second cylinders (150) are symmetrically fixedly mounted on the side walls of the casting box body (120), and the telescopic ends of the two second cylinders (150) are respectively fixedly connected to the two ends of the casting box cover (110); a third motor (141) is also fixedly mounted on the casting box cover (110), and the output shaft of the third motor (141) is fixedly connected to a feed insulation cover (142), and the feed insulation cover (142) is located above the feed pipe (140).

6. A production device for preparing a metal strip according to claim 1, characterized in that: A temperature sensor (130) is fixedly connected to the casting box cover (110), and the temperature sensor (130) extends into the interior of the casting box body (120); the casting box body (120) is also provided with a heating device (160) for heating the interior of the casting box body (120).

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