Casting device for high-temperature aluminum alloy casting forming

Abstract

The invention provides a casting device for high-temperature aluminum alloy casting forming, and belongs to the technical field of aluminum alloy pouring. The casting device for high-temperature aluminum alloy casting and forming comprises a barrel, a casting device body, a casting device body and a casting device body, the barrel is used for transferring pouring liquid poured into a furnace body into a mold, and a discharging opening is formed in the bottom of the end, away from the furnace body, of the barrel in a penetrating mode; the flow control plate is used for controlling the opening area of the discharge port or sealing the discharge port under the action of rotation; the inclination angle of one end of the barrel is controlled according to a preset angle; the top of the elastic plate is connected with the bottom of the U-shaped plate, and the elastic plate is S-shaped; an arc-shaped edge groove, an arc-shaped middle groove and a discharging groove are formed in the side, close to the sealing frame, of each scraper. The flow speed and flow of pouring liquid are accurately adjusted by adjusting the inclination angle of the whole body where the barrel body is located and the opening area of the discharging opening, the scraper blade with the elastic function is additionally arranged, and the adjusting accuracy of the opening area of the discharging opening is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum alloy casting, and particularly relates to a melting and casting device for high-temperature aluminum alloy casting and forming. Background Art

[0002] A melting and casting device for high-temperature aluminum alloy casting and forming is a device used to heat and melt aluminum alloy raw materials and cast them into shapes. For some small-batch, multi-variety production, or production with complex die structures that require precise pouring at specific positions, it is necessary to introduce the aluminum alloy pouring liquid into the casting die through a diversion mechanism.

[0003] Chinese Patent Application Publication No. CN215845671U discloses an aluminum alloy pouring tank, which relates to the technical field of aluminum alloy manufacturing, and includes a support frame, a pouring tank body, a tilting mechanism, a diversion mechanism, and a rotating mechanism. There are two groups of support frames, and the pouring tank body is hinged between the two support frames. One end of the top of the pouring tank body is provided with a pouring nozzle. The tilting mechanism is used to drive the pouring tank body to rotate. The diversion mechanism includes a receiving funnel located below the pouring nozzle. The bottom of the receiving funnel is connected to a material pipe, the bottom of the material pipe is connected to a buffer pipe, the buffer pipe is arranged obliquely downward, and the end of the buffer pipe is provided with a discharge nozzle, which has the advantages of being able to control the discharge amount and discharge speed of the pouring liquid, not requiring the handling of corresponding molds during pouring, and reducing the workload.

[0004] However, the pouring tank body is large in size and difficult to adjust the angle. It is difficult to accurately control the flow rate and flow rate of the pouring liquid by only adjusting the tilting angle of the tank body. For example, the above-mentioned patent application publication number CN215845671U controls the discharge speed of the pouring liquid by controlling the tilting angle of the pouring tank body through a dumping mechanism. The huge pouring tank is difficult to adjust, which easily causes the tilting angle of the pouring tank to be too large or too small. If the tilting angle is too large and the pouring speed is fast, the aluminum alloy pouring liquid flows too violently in the cavity, which easily involves a large amount of air and forms pores. At the same time, it may also cause impurities such as slag to float to the surface in time and be wrapped inside the casting, resulting in slag inclusion defects, reducing the density and mechanical properties of the casting, etc.; if the tilting angle is too small and the pouring speed is slow, the aluminum alloy pouring liquid loses heat faster when flowing in the cavity, and the front pouring liquid may cool and solidify first, resulting in the subsequent pouring liquid being unable to completely merge with the previous pouring liquid, thereby forming a cold shut on the surface of the casting, reducing the strength and sealing of the casting, etc. In addition, aluminum alloy casting liquid is easy to remain at the discharge port. The solidified aluminum alloy solid will reduce the cross-sectional area of ​​the discharge port, increase the difficulty of accurately controlling the flow rate and flow of the casting liquid, and reduce the ability of continuous casting. For example, in the above-mentioned patent application publication number CN215845671U, the casting tank body introduces the casting liquid into the receiving funnel through the guide mechanism, but the residual aluminum alloy casting liquid will solidify on the inner wall of the guide mechanism, changing the cross-sectional area of ​​the guide mechanism. As time accumulates, the casting error increases. In addition, it is easy to produce errors by adjusting the tilt angle of the casting tank body, which will greatly reduce the quality of product molding. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a melting and casting device for high-temperature aluminum alloy casting to solve the problems that the casting tank body is large in size and difficult to adjust the angle, and it is difficult to accurately control the flow rate and flow rate of the casting liquid by only adjusting the inclination angle of the tank body; and the aluminum alloy casting liquid is easily residual at the discharge port. The solidified aluminum alloy solid will reduce the cross-sectional area of ​​the discharge port, increase the difficulty of accurately controlling the flow rate and flow rate of the casting liquid, and reduce the ability of continuous casting.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a melting and casting device for high-temperature aluminum alloy casting, comprising: a furnace body, a mold, a plurality of feed pipes are connected to the top of the mold, including: a cylinder, the cylinder is arranged between the furnace body and the mold, the cylinder is used to transfer the pouring liquid poured into the furnace body to the mold, and a discharge port is penetrated through the bottom of the cylinder away from one end of the furnace body, and two U-shaped plates are arranged on the side of the cylinder, and the two U-shaped plates are symmetrically distributed on both sides of the discharge port.

[0007] A flow control plate is arranged outside the discharge port, the flow control plate is connected to the rotating part of the stepper motor, and the flow control plate is used to control the opening area of ​​the discharge port or seal the discharge port under the action of rotation.

[0008] A hydraulic cylinder, the telescopic end of the hydraulic cylinder is connected to the top of the end of the cylinder body away from the furnace body and controls the inclination angle of the cylinder body at a preset angle.

[0009] An elastic plate, the top of the elastic plate is connected to the bottom of the U-shaped plate, and the elastic plate is S-shaped.

[0010] A scraper, the top of each scraper is connected to the bottom of the elastic plate, and an arc-shaped side groove, an arc-shaped middle groove, and a discharge groove are provided on one side of each scraper close to the flow control plate. The bottoms of the arc-shaped side groove, the arc-shaped middle groove, and the discharge groove coincide with the middle plane of one end of the scraper. One end of an arc-shaped side groove is connected to one end of another arc-shaped side groove through a plurality of arc-shaped middle grooves. The middle parts of each arc-shaped side groove and arc-shaped middle groove are connected to a discharge groove, and the bottom of the discharge groove coincides with the tip of the scraper.

[0011] The scraper scrapes the pouring liquid inside the rotating flow control plate under the extrusion action with the flow control plate, and the elastic plate accelerates the dropping speed of the residual pouring liquid on the scraper through elastic recovery.

[0012] Preferably, the distance from the tip of the scraper to the axis of the cylinder body is equal to the distance from the side of the flow control plate away from the stepping motor to the axis of the cylinder body. The side of the flow control plate close to the scraper is a curved surface protruding outward, and the distance between the two ends of the side of the flow control plate close to the stepping motor is less than the distance between the two ends of the side of the flow control plate away from the stepping motor.

[0013] Preferably, the average curvature radius of the curve where each arc surface of the elastic plate is located is 18-20 mm.

[0014] Preferably, the arc-shaped side grooves are provided at both ends of the scraper, the arc-shaped middle grooves are arranged between the two arc-shaped side grooves, adjacent arc-shaped middle grooves are connected, the distance from one end of the arc-shaped side groove to the axis of the cylinder body is greater than the distance from the arc-shaped middle groove to the axis of the cylinder body, and the arc-shaped side grooves and arc-shaped middle grooves are both circular arc grooves with openings upward.

[0015] Preferably, a sealing frame is connected to the side of the cylinder body, the sealing frame is communicated with the discharge port, and the arc surface of the side of the sealing frame away from the stepping motor is in the same plane as the side of the cylinder body.

[0016] Preferably, the sealing frame is made of ceramic material, and the flow control plate is made of any one of polytetrafluoroethylene material or graphite material.

[0017] Preferably, two side plates are connected to the side surface of the cylinder body near one end of the furnace body. The two side plates are symmetrically distributed along the axis of the cylinder body. A wing plate is connected to the side of each side plate near the furnace body. An inlet arc plate is arranged between the two wing plates. The side of the inlet arc plate away from the furnace body is connected to the side of the cylinder body near the furnace body. The diameter of the inlet arc plate gradually narrows along the axis of the cylinder body. The diameter of the inlet arc plate near the furnace body is smaller than the diameter of the inlet arc plate away from the furnace body. The two wing plates are both arc plates. The two wing plates gradually expand along the axis direction of the hydraulic cylinder. The distance between the two wing plates near one end of the hydraulic cylinder is greater than the distance between the two wing plates away from one end of the hydraulic cylinder. A hydraulic cylinder (31) is connected to the top of the cylinder body (21) away from one end of the furnace body. The telescopic end of the hydraulic cylinder (31) drives the cylinder body (21) to control the tilt angle of the cylinder body (21) at a preset angle.

[0018] Preferably, two rotating rods are connected to the side surface of the cylinder body near one end of the furnace body. An outer cylinder is rotatably connected to each rotating rod. The outer cylinder is fixedly connected to the flat plate through a second support plate. Extension plates are connected to both ends of the flat plate near one side of the furnace body. Both sides of the hydraulic cylinder are connected to the top of the flat plate through a first support plate. Two U-shaped grooves are formed in the side of the cylinder body away from the furnace body. The bottom of each U-shaped groove is connected to one side of the U-shaped plate near the stepping motor. A bottom plate is connected to the side of the cylinder body away from the furnace body. The shape of the bottom plate is adapted to the shape of the cylinder body. An insertion cylinder is arranged on the side of the flow control plate near the furnace body. The top of the insertion cylinder is connected to the bottom of the side surface of the cylinder body. The fixed part of the stepping motor is connected to the side of the bottom plate away from the furnace body. The rotating part of the stepping motor is connected to the top end of the second connecting plate through a rotating shaft. The bottom end of the second connecting plate is connected to the flow control plate.

[0019] Preferably, each scraper is arranged at one end of a U-shaped groove near the flow control plate. The U-shaped groove is used to accommodate the flow control plate when the discharge port is fully opened.

[0020] Preferably, an insertion rod is inserted into the insertion cylinder. A feeding hopper is connected to the side of the insertion rod away from the furnace body. Clamping plates are connected to both ends of the feeding hopper through a first connecting plate. The clamping plates are elastic plates. The clamping plates are adapted to the U-shaped plate. The clamping plates are in contact with the inner wall of the U-shaped plate under the pressing action. A connecting pipe is connected to the bottom of the feeding hopper. The connecting pipe is inserted into the feeding pipe.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects: A diversion assembly is added between the furnace body and the mold to control the tilt angle of the diversion assembly and the opening area of the discharge port, so as to accurately adjust the flow rate, flow volume, and tilt angle of the flow path of the pouring liquid, and improve the quality of the finished product.

[0022] The discharge port is arranged at the bottom end of the cylinder body far from the furnace body. The opening area of the discharge port is controlled by the rotation of the flow control plate, so as to control the flow rate of the pouring liquid. However, the pouring liquid will adhere to the surface of the flow control plate, causing the surface area of the flow control plate to change, which will affect the quality of the subsequent products. By symmetrically arranging two elastic scrapers on both sides of the cylinder body, the pouring liquid on the surface of the flow control plate can be scraped off alternately after continuous pouring, keeping the surface of the flow control plate clean and maintaining the continuous use ability of the flow control plate.

[0023] By setting the arc-shaped side groove and the arc-shaped middle groove, it is convenient to collect the pouring liquid remaining in the upper and middle parts of the scraper, and concentrate the scattered pouring liquid in the arc-shaped side groove or the arc-shaped middle groove. The pouring liquid in the arc-shaped side groove or the arc-shaped middle groove aggregates into a mass, adheres together to form a whole, increases the overall mass, increases the force sliding along the inclined plane, facilitates the pouring liquid to fall into the discharge groove, and facilitates the falling and removal of the pouring liquid remaining on the scraper.

[0024] The elastic plate is S-shaped. The elastic plate can be made of metal, which is high-strength spring steel, with a relatively high elastic modulus and large hardness. In a high-temperature environment, to ensure the recovery and high vibration frequency of the S-shaped elastic plate, the average curvature radius of the curve where each arc surface of the elastic plate is located is 18 - 20 millimeters. When the bent elastic plate starts to recover elastically, the elastic plate drives the scraper to vibrate reciprocally. During this process, the remaining pouring liquid in the arc-shaped side groove, the arc-shaped middle groove, and the discharge groove drops during the vibration, accelerating the dropping speed of the remaining pouring liquid and reducing the remaining pouring liquid in the pouring liquid in the arc-shaped side groove, the arc-shaped middle groove, and the discharge groove. Brief Description of the Drawings

[0025] The drawings incorporated herein and constituting part of the specification illustrate embodiments of the present disclosure, and together with the specification are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] Figure 2 It is Figure 1 The schematic structural diagram after removing the furnace body and the mold.

[0028] Figure 3 It is a separation diagram of the part where the cylinder body is located, the part where the outer cylinder is located, and the first support plate.

[0029] Figure 4 It is a schematic structural diagram of the part where the cylinder body is located.

[0030] Figure 5 It is a schematic structural diagram of the part where the cylinder body is located after removing the hydraulic cylinder, the wing plate, and the feeding arc plate.

[0031] Figure 6 It isFigure 5 Exploded view of

[0032] Figure 7 Schematic structural diagram of the part where the bottom plate, flow control plate, and U-shaped plate are located.

[0033] Figure 8 Schematic structural diagram of the bottom plate, flow control plate, U-shaped plate, sealing frame, and scraper.

[0034] Figure 9 is Figure 8 exploded view of

[0035] Figure 10 Schematic structural diagram of the U-shaped plate, sealing frame, scraper, and elastic plate.

[0036] Figure 11 Schematic structural diagram of the scraper and elastic plate.

[0037] Figure 12 is Figure 11 right side sectional view of the scraper in

[0038] Figure 13 Schematic structural diagram of the elastic plate.

[0039] Reference numerals in the figure are: 11, furnace body; 12, mold; 13, feed pipe; 21, cylinder body; 22, side plate; 23, wing plate; 24, feed arc plate; 25, insertion cylinder; 26, bottom plate; 27, U-shaped groove; 31, hydraulic cylinder; 32, rotating rod; 33, outer cylinder; 34, first support plate; 35, second support plate; 36, flat plate; 37, extension plate; 41, hopper; 42, first connecting plate; 43, clamping plate; 44, insertion pipe; 45, insertion rod; 51, stepping motor; 52, rotating shaft; 53, second connecting plate; 54, flow control plate; 55, sealing frame; 56, discharge port; 61, U-shaped plate; 62, elastic plate; 63, scraper; 64, arc-shaped side groove; 65, discharge groove; 66, arc-shaped middle groove.

[0040] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications made are still included within the scope of the appended claims. Detailed implementation manners

[0041] The following will describe in detail a melting and casting device for high-temperature aluminum alloy casting provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also implement them in other alternative ways; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0042] Embodiment 1: As Figure 1 - Figure 9 shown, an embodiment of the present invention provides a melting and casting device for high-temperature aluminum alloy casting, including: a furnace body 11, a mold 12. A plurality of feed pipes 13 are connected to the top of the mold 12, including: a cylinder body 21. The cylinder body 21 is arranged between the furnace body 11 and the mold 12. The cylinder body 21 is used to transfer the pouring liquid poured into the furnace body 11 to the mold 12. A discharge port 56 is penetrated and opened at the bottom of the end of the cylinder body 21 far from the furnace body 11. Two U-shaped plates 61 are arranged on the side surface of the cylinder body 21. The two U-shaped plates 61 are symmetrically distributed on both sides of the discharge port 56.

[0043] The discharge port 56 is not arranged on one side of the cylinder body 21, but at the bottom of the bottom end of the cylinder body 21, which is convenient for the pouring liquid in the cylinder body 21 to flow out and reduces the residue of the pouring liquid in the cylinder body 21. The discharge port 56 is strip-shaped, which is also convenient for adjusting the opening area of the discharge port 56.

[0044] A flow control plate 54. The flow control plate 54 is arranged outside the discharge port 56. The flow control plate 54 is connected to the rotating part of the stepping motor 51. The flow control plate 54 is used to control the opening area of the discharge port 56 or seal the discharge port 56 under the action of rotation.

[0045] A hydraulic cylinder 31. The telescopic end of the hydraulic cylinder 31 is connected to the top of the end of the cylinder body 21 far from the furnace body 11 and controls the inclination angle of the cylinder body 21 at a preset angle.

[0046] By controlling the height of one end of the furnace body 11 through the hydraulic cylinder 31, the inclination angle of the furnace body 11 is changed. The greater the inclination angle of the furnace body 11, the faster the flow rate of the pouring liquid flowing out of the furnace body 11.

[0047] Both the hydraulic cylinder 31 and the stepper motor 51 can be electrically connected to the database using wires to determine the model of the existing mold 12, obtain the flow rate and flow volume of the pouring liquid during the pouring process of the mold 12, obtain the operation data of skilled workers and the data of the mechanical device controlling the tilt angle of the furnace body 11, determine the current optimal tilt angle of the cylinder body 21 and the elongation of the telescopic end of the hydraulic cylinder 31 and the opening area of the discharge port 56 at this tilt angle, and determine the rotation angle of the stepper motor 51 based on the opening area of the discharge port 56. In actual production, if the model of the mold 12 is stored in the database, the rotation data of the stepper motor 51 and the telescopic data of the hydraulic cylinder 31 can be determined through the database, so as to accurately control the tilt angle of the cylinder body 21 and the liquid output volume per unit time.

[0048] Since the overall volume and mass of the cylinder body 21 are small, the adjustment difficulty of the cylinder body 21 is much less than that of the pouring tank. It can not only accurately control the tilt degree (flow rate) of the cylinder body 21 through the telescopic movement of the hydraulic cylinder 31, but also accurately control the liquid output volume (flow volume) of the discharge port 56 per unit time through the rotation of the stepper motor 51, so as to accurately control the flow rate and flow volume of the pouring liquid in the cylinder body 21.

[0049] If there is no relevant data of the new mold 12 in the database, the tilt angle data of the cylinder body 21, the data of the opening area of the liquid outlet, and the quality data of the pouring finished product can be collected by skilled workers. By setting a large number of control groups, the data (tilt angle data, data of the opening area of the liquid outlet) of the group with the best quality of the pouring finished product can be determined and synchronized to the database. When a finished product with better pouring quality appears later, the corresponding data is transmitted to the database and the best data of the original mold 12 model is overwritten.

[0050] Accurately control the flow rate, flow volume, and tilt angle of the pouring liquid flow path by controlling the tilt angle of the cylinder body 21 and the opening area of the liquid outlet.

[0051] During the aluminum alloy pouring process, the significance of precisely controlling the tilt angle of the pouring liquid flow path is as follows: A suitable tilt angle can ensure that the aluminum alloy liquid flows smoothly into the cavity of mold 12, reducing the probability of splashing. Controlling the tilt angle well can make the molten metal flow along a more ideal path and state, allowing more opportunities for gas to escape from the surface of the molten metal and reducing the generation of defects such as porosity. A reasonable tilt angle helps to achieve the sequential solidification of the casting. For example, for some castings with complex structures, by adjusting the pouring tilt angle, the molten metal can first fill the thick parts of the casting and then flow to the thin-wall parts, ensuring that the casting solidifies gradually from the parts far from the riser towards the riser direction. This is beneficial for the riser to compensate for the casting and reduce defects such as shrinkage cavities and porosity, improving the density and mechanical properties of the casting. An appropriate tilt angle can make the molten metal flow evenly into the runner, avoiding excessive erosion and scouring of a certain part of the runner, thus ensuring the integrity and stability of the runner and ensuring that the molten metal can be smoothly transported to all parts of the cavity.

[0052] During the aluminum alloy pouring process, the significance of precisely controlling the flow rate of the pouring liquid is as follows: During the flow of the aluminum alloy liquid, if the flow rate is too fast, it will increase the contact area and contact time with air, thus intensifying the oxidation reaction and generating more oxidation inclusions. If the flow rate is too slow, the aluminum alloy liquid may start to solidify before completely filling the cavity of mold 12, resulting in defects such as lack of material and incomplete contour in the casting; a reasonable flow rate can reduce thermal stress; a reasonable flow rate can optimize the microstructure.

[0053] During the aluminum alloy pouring process, the significance of precisely controlling the flow rate of the pouring liquid is as follows: If the flow rate is too large, the aluminum alloy liquid may generate turbulence and eddy currents in the cavity, entraining a large amount of gas and resulting in defects such as pores and pinholes inside the casting. If the flow rate is too small, problems such as lack of material and cold shut may occur in the casting. A reasonable flow rate can reduce the defects of the casting; a suitable flow rate can make the aluminum alloy liquid flow smoothly into the cavity, reducing the violent impact and friction with air and the mold, thus reducing the probability of generating oxidation inclusions; precisely controlling the flow rate can ensure that the aluminum alloy liquid fills the cavity accurately and completely within the specified time, reducing waste and helping to stabilize and optimize the entire pouring cycle; a moderate flow rate can keep the scouring and erosion of the aluminum alloy liquid on the mold 12 within a reasonable range, reducing the wear and thermal shock on the surface of the cavity of mold 12 and extending the service life of mold 12.

[0054] A sealing frame 55 is connected to the side of the cylinder body 21. The sealing frame 55 is connected to the discharge port 56, and the arc surface of the sealing frame 55 on the side away from the stepping motor 51 is in the same plane as the side of the cylinder body 21.

[0055] The sealing frame 55 is in the same plane as the side surface of the cylinder body 21, so that the sealing frame 55 is adapted to the side surface of the cylinder body 21. When the flow control plate 54 slides along the surfaces of the sealing frame 55 and the cylinder body 21, there will be no obstruction due to the different heights of the surfaces of the sealing frame 55 and the cylinder body 21.

[0056] The sealing frame 55 is made of ceramic material, and the flow control plate 54 is made of either polytetrafluoroethylene or graphite.

[0057] The ceramic material has extremely high heat resistance, can remain stable under the high temperature of the aluminum alloy pouring liquid, and is not easy to soften or deform; it has strong chemical stability, hardly reacts with the aluminum alloy pouring liquid, and has high sealing reliability; it has high hardness and good wear resistance, and can be used in parts where the sealing surface is easily worn. In order to ensure the use stability of the sealing frame 55, the sealing frame 55 needs to have the characteristics of high temperature resistance, strong stability, resistance to friction (friction occurs between the flow control plate 54 and the sealing frame 55 during the movement process), and strong sealing performance. Therefore, the sealing frame 55 can be made of ceramic material.

[0058] Polytetrafluoroethylene has excellent chemical stability, hardly reacts with any chemical substances, and has good tolerance to the aluminum alloy pouring liquid; its friction coefficient is extremely low, which can effectively reduce the friction between sealing components, reduce wear, and improve the service life of the sealing device. Graphite has excellent high temperature resistance and can withstand the high temperature of the aluminum alloy pouring liquid; it has good self-lubrication performance, which can reduce the friction loss of the sealing components during the movement process. Both polytetrafluoroethylene and graphite have the characteristics of good chemical stability, high temperature resistance, and small friction loss. Therefore, the flow control plate 54 can be made of polytetrafluoroethylene or graphite.

[0059] Two side plates 22 are connected to the side surface of the cylinder body 21 near one end of the furnace body 11. The two side plates 22 are symmetrically distributed along the axis of the cylinder body 21. A wing plate 23 is connected to the side of each side plate 22 close to the furnace body 11. An inlet arc plate 24 is arranged between the two wing plates 23. The side of the inlet arc plate 24 far from the furnace body 11 is connected to the side of the cylinder body 21 close to the furnace body 11. The diameter of the inlet arc plate 24 gradually narrows along the axis of the cylinder body 21. The diameter of the inlet arc plate 24 on the side close to the furnace body 11 is smaller than the diameter of the inlet arc plate 24 on the side far from the furnace body 11. The two wing plates 23 are both arc plates, and the two wing plates 23 gradually expand along the axis direction of the hydraulic cylinder 31. The distance between the two wing plates 23 at the end close to the hydraulic cylinder 31 is greater than the distance between the two wing plates 23 at the end far from the hydraulic cylinder 31.

[0060] The feeding port is formed by the wing plate 23 and the feeding arc plate 24. The feeding port is integrally formed with the cylinder body 21. The feeding port inclines with the cylinder body 21 to a predetermined angle (the current optimal inclination angle is determined according to the model of the mold 12). The length on both sides of the feeding arc plate 24 is expanded through the wing plate 23, and the space of the feeding port is enlarged. When pouring the casting liquid into the feeding port of the casting tank body, the possibility of the casting liquid splashing out of the feeding port is reduced, and the loss of materials is reduced.

[0061] Two rotating rods 32 are connected to the side surface of one end of the cylinder body 21 close to the furnace body 11. Each rotating rod 32 is rotatably connected with an outer cylinder 33. The outer cylinder 33 is fixedly connected with a flat plate 36 through a second support plate 35. Both ends of the flat plate 36 close to the furnace body 11 are connected with extension plates 37. Both sides of the hydraulic cylinder 31 are connected to the top of the flat plate 36 through a first support plate 34. Two U-shaped grooves 27 are formed in the side of the cylinder body 21 far from the furnace body 11. The bottom of each U-shaped groove 27 is connected to the side of the U-shaped plate 61 close to the stepping motor 51. The cylinder body 21 is connected with a bottom plate 26 on the side far from the furnace body 11. The shape of the bottom plate 26 is adapted to the shape of the cylinder body 21. An insertion cylinder 25 is arranged on the side of the flow control plate 54 close to the furnace body 11. The top of the insertion cylinder 25 is connected to the bottom of the side surface of the cylinder body 21. The fixed part of the stepping motor 51 is connected to the side of the bottom plate 26 far from the furnace body 11. The rotating part of the stepping motor 51 is connected to the top end of the second connecting plate 53 through a rotating shaft 52. The bottom end of the second connecting plate 53 is connected to the flow control plate 54.

[0062] The cylinder body 21, the wing plate 23, the feeding arc plate 24, the bottom plate 26, the U-shaped plate 61, the sealing frame 55, etc. form an integral whole and jointly form a diversion device.

[0063] During use, determine the model of the mold 12, and obtain the best matching data (the inclination degree of the cylinder body 21, the elongation of the telescopic end of the hydraulic cylinder 31, the opening size of the discharge port 56, and the rotation angle of the motor) of the mold 12 of this model through the database. The telescopic end of the hydraulic cylinder 31 extends to the preset length, and the telescopic end of the hydraulic cylinder 31 drives one end of the diversion device to move. The diversion device (including the cylinder body 21) is rotatably connected to the outer cylinder 33 through the rotating rod 32. One end of the diversion device away from the furnace body 11 rises as the telescopic end of the hydraulic cylinder 31 extends, so that the inclination angle of the diversion device moves to the existing best inclination angle. The rotating part of the motor drives the first connecting plate 42 and the flow control plate 54 to rotate in sequence through the rotating shaft 52 (the rotation direction can be set by itself). The flow control plate 54 no longer seals the liquid outlet. After the rotation of the flow control plate 54 stops, the liquid outlet is opened to the best opening area. Through the adjustment of the inclination angle of the cylinder body 21 and the opening size of the liquid outlet, the flow rate and flow volume of the pouring liquid are accurately controlled together. Heat the aluminum alloy raw material in the furnace body 11 (tilting casting furnace) to melting through the heating system, start the tilting device, tilt the furnace body 11 by a certain angle, and the aluminum alloy pouring liquid in the furnace body 11 flows into the mold 12 through the diversion device. The overall structure of the diversion device and the structure for adjusting the inclination angle of the diversion device and the size of the discharge port 56 is simple, with small mass and small volume. By collecting data, the existing best adjustment data is obtained, and the adjustment is more accurate, which is convenient for batch production.

[0064] Embodiment 2: As Figure 1 - Figure 13 shown, an embodiment of the present invention provides a melting and casting device for high-temperature aluminum alloy casting and forming, including: an elastic plate 62, the top of the elastic plate 62 is connected to the bottom of the U-shaped plate 61, and the elastic plate 62 is S-shaped.

[0065] The S-shaped elastic piece has good elastic deformation ability. During the operation of the scraping plate 63, when encountering obstacles or uneven surfaces, the S-shaped elastic piece can absorb and buffer part of the impact force through its own deformation, avoiding the scraping plate 63 from being directly damaged by excessive impact force and extending the service life of the scraping plate 63. The deformable characteristic of the S-shaped elastic piece enables the scraping plate 63 to better adapt to surfaces with different shapes and curvatures. Whether it is a flat surface, a curved surface or the surface of an object with a complex contour, the S-shaped elastic piece can adjust the angle and fit degree of the scraping plate 63 to a certain extent through deformation, ensuring that the scraping plate 63 always maintains good contact with the surface of the flow control plate 54 and improving the scraping effect.

[0066] When the squeegee 63 is working, the S-shaped elastic piece can automatically adjust the distribution of the elastic force according to the contact situation between the squeegee 63 and the surface of the object, so that the squeegee 63 can apply pressure evenly across the entire working width. This can avoid the situation of excessive or too little local pressure and ensure the consistency of the scraping effect. The shape of the S-shaped elastic piece enables it to bear and transmit forces in multiple directions when connecting the squeegee 63, achieving better force balance. Compared with other connecting pieces of simple shapes, the S-shaped elastic piece can more effectively resist the lateral, longitudinal and torsional forces generated by the squeegee 63 during operation, making the connection between the squeegee 63 and the connecting component more stable and reducing the risk of loosening and falling off. The S-shaped elastic piece usually has a certain elasticity and flexibility, and can be more easily adjusted and positioned when installing the squeegee 63. The installer can bend or adjust the shape of the S-shaped elastic piece according to actual needs to adapt to different installation positions and angle requirements without complex processing or modification, improving the installation efficiency.

[0067] The average curvature radius of the curve where each arc surface of the elastic plate 62 is located is 18 - 20 millimeters.

[0068] The elastic plate 62 can be made of metal, which is high-strength spring steel with a relatively high elastic modulus and high hardness. In a high-temperature environment, the material properties will decline. To ensure the recovery and high vibration frequency of the S-shaped elastic plate 62, the average curvature radius generally needs to be appropriately increased.

[0069] When the average curvature radius of the curve where each arc surface of the elastic plate 62 is located is 18 millimeters, the elastic plate 62 has a large elastic restoring force, a high vibration frequency, and good space adaptability.

[0070] When the average curvature radius of the curve where each arc surface of the elastic plate 62 is located is 20 millimeters, it has a long fatigue life, a relatively high stiffness, and is easy to process.

[0071] According to the thin plate bending theory and vibration theory, when other conditions remain unchanged, there is a certain inverse proportional relationship trend between the curvature radius of the S-shaped elastic piece and the vibration frequency. That is, the smaller the curvature radius (the larger the curvature), the relatively greater the bending deformation degree of the elastic piece during vibration, and the greater the generated elastic restoring force, which may increase the vibration frequency. However, when the curvature is too large, the elastic piece may enter the non-linear elastic deformation region and even undergo plastic deformation. At this time, the elastic properties of the material no longer follow Hooke's law, and the vibration frequency may not continue to increase according to the expected law and may even decrease.

[0072] The scraping plate 63, the top of each scraping plate 63 is connected to the bottom of the elastic plate 62. An arc-shaped side groove 64, an arc-shaped middle groove 66, and a discharge groove 65 are provided on one side of each scraping plate 63 close to the flow control plate 54. The bottom of the arc-shaped side groove 64, the bottom of the arc-shaped middle groove 66, and the bottom of the discharge groove 65 coincide with the middle plane of one end of the scraping plate 63. One end of an arc-shaped side groove 64 is connected to one end of another arc-shaped side groove 64 through a plurality of arc-shaped middle grooves 66. The middle of each arc-shaped side groove 64 and arc-shaped middle groove 66 is connected to a discharge groove 65. The bottom of the discharge groove 65 coincides with the tip of the scraping plate 63.

[0073] By providing the arc-shaped side groove 64 and the arc-shaped middle groove 66, it is convenient to collect the pouring liquid remaining in the upper and middle parts of the scraping plate 63, and the scattered pouring liquid is concentrated in the arc-shaped side groove 64 or the arc-shaped middle groove 66. The pouring liquid in the arc-shaped side groove 64 or the arc-shaped middle groove 66 agglomerates and adheres together to form a whole, increasing the overall mass and the force of sliding down along the inclined plane, facilitating the pouring liquid to fall into the discharge groove 65, and facilitating the falling and removal of the remaining pouring liquid on the scraping plate 63.

[0074] The arc-shaped side groove 64, the arc-shaped middle groove 66, and the discharge groove 65 are collectively referred to as the falling groove. The bottom of the falling groove coincides with the middle plane of one end of the scraping plate 63. The inclination degree of the falling groove is greater than the inclination degree of the side surface of the scraping plate 63, so that the pouring liquid is more likely to slide down along the bottom of the falling groove under the action of gravity, reducing the accumulation of the pouring liquid on the scraping plate 63 and the falling groove, and accelerating the falling speed of the pouring liquid.

[0075] Under the extrusion action of the scraping plate 63 and the flow control plate 54, the pouring liquid inside the rotating flow control plate 54 is scraped off. The elastic plate 62 accelerates the dropping speed of the remaining pouring liquid on the scraping plate 63 through elastic recovery.

[0076] The distance from the tip of the scraping plate 63 to the axis of the cylinder body 21 is equal to the distance from the side of the flow control plate 54 far from the stepping motor 51 to the axis of the cylinder body 21. The side of the flow control plate 54 close to the scraping plate 63 is a curved surface protruding outward. The distance between the two ends of the side of the flow control plate 54 close to the stepping motor 51 is less than the distance between the two ends of the side of the flow control plate 54 far from the stepping motor 51.

[0077] The distance from the tip of the scraping plate 63 to the axis of the cylinder body 21 is equal to the distance from the side of the flow control plate 54 far from the stepping motor 51 to the axis of the cylinder body 21, ensuring that the tip of the scraping plate 63 extends out of the U-shaped groove 27. The tip of the scraping plate 63 will be squeezed and rubbed against the surface of the rotating flow control plate 54, increasing the pressure between the scraping plate 63 and the flow control plate 54 and enhancing the cleaning ability of the scraping plate 63 to the flow control plate 54.

[0078] On the side of the flow control plate 54 close to the scraping plate 63, there are curved surfaces protruding outwards, causing the flow control plate 54 to approach and squeeze the tip of the scraping plate 63. The tip of the scraping plate 63 slides along the arc surface of the flow control plate 54, increasing the pressure between the scraping plate 63 and the flow control plate 54. The elastic plate 62 deforms in the direction away from the discharge port 56. The relationship between the scraping plate 63 and the flow control plate 54 is gradual, and the relative movement is smooth.

[0079] Arc-shaped side grooves 64 are formed at both ends of the scraping plate 63, and arc-shaped middle grooves 66 are arranged between the two arc-shaped side grooves 64. Adjacent arc-shaped middle grooves 66 are connected. The distance from one end of the arc-shaped side groove 64 to the axis of the cylinder body 21 is greater than the distance from the arc-shaped middle groove 66 to the axis of the cylinder body 21.

[0080] The arc-shaped side grooves 64 and the arc-shaped middle grooves 66 are both upward-opening circular arc grooves (such as U-shaped grooves or semi-circular grooves). The U-shaped grooves or semi-circular grooves make the flow channel bend downward, facilitating the flow of the pouring liquid and increasing the falling speed of the pouring liquid.

[0081] Each scraping plate 63 is arranged at one end of a U-shaped groove 27 close to the flow control plate 54. The U-shaped groove 27 is used to accommodate the flow control plate 54 when the discharge port 56 is fully opened.

[0082] During use, before pouring, the stepping motor 51 is started. The rotating part of the stepping motor 51 drives the rotating shaft 52, the first connecting plate 42, and the flow control plate 54 to rotate in sequence. The flow control plate 54 approaches and presses against the tip of the scraping plate 63, and the tip of the scraping plate 63 slides along the arc surface of the flow control plate 54. The pressure between the scraping plate 63 and the flow control plate 54 increases, and the elastic plate 62 bends and deforms in the direction away from the discharge port 56. When the flow control plate 54 stops rotating, the opening area of the discharge port 56 is the best existing opening area. During the pouring process, part of the flow control plate 54 blocks the discharge port 56, and part of the pouring liquid remains on the flow control plate 54. After pouring, the motor continues to drive the flow control plate 54 to rotate along the direction of the U-shaped groove 27. The scraping plate 63 scrapes off the residual pouring liquid on the surface of the flow control plate 54. The scraped pouring liquid accumulates between the scraping plate 63 and the flow control plate 54. Part of the pouring liquid flows into the arc-shaped side groove 64, the arc-shaped middle groove 66, and the discharge groove 65. As the flow control plate 54 moves relatively, the length of the plate body of the flow control plate 54 adhered with the pouring liquid becomes shorter, and the pouring liquid is squeezed off from the surface of the flow control plate 54 and collected. When the scraping plate 63 contacts the arc surface at one end of the flow control plate 54, the distance between the scraping plate 63 and the flow control plate 54 increases, the pressure of the elastic plate 62 decreases, and part of it begins to recover. When the scraping plate 63 separates from the flow control plate 54, the pouring liquid on the arc surface at one end of the flow control plate 54 is scraped off, and most of the pouring liquid in the arc-shaped side groove 64, the arc-shaped middle groove 66, and the discharge groove 65 falls under the action of gravity. The scraping plate 63 continues to move, and the scraping plate 63 completely enters the U-shaped groove 27. The flow control plate 54 no longer obstructs the scraping plate 63 and the elastic plate 62, and the bent elastic plate 62 begins to elastically recover. The elastic plate 62 drives the scraping plate 63 to vibrate reciprocally. During this process, the residual pouring liquid in the arc-shaped side groove 64, the arc-shaped middle groove 66, and the discharge groove 65 falls during the vibration process, accelerating the falling speed of the residual pouring liquid and reducing the residual pouring liquid in the arc-shaped side groove 64, the arc-shaped middle groove 66, and the discharge groove 65. After the elastic plate 62 returns to its original state, the stepping motor 51 is started again. The rotating end of the stepping motor 51 drives the flow control plate 54 to rotate and seals the discharge port 56. When continuous pouring is carried out, the rotating end of the stepping motor 51 drives the flow control plate 54 to rotate in the opposite direction to the previous time, providing time for the scraping plate 63 to clean under the action of gravity or manual cleaning (when the use time is too long and the automatic cleaning ability is limited, manual cleaning can be used for assistance, such as using a blower to accelerate the falling of the pouring liquid on the scraping plate 63). The scraping plate 63 scrapes off the residual pouring liquid on the flow control plate 54, which can not only keep the surface of the flow control plate 54 clean, but also ensure the opening area of the discharge port 56, avoid the obvious residual solidified pouring liquid on the surface of the flow control plate 54 from reducing the area of the discharge port 56, and improve the accuracy of the pouring liquid flow rate.

[0083] Example 1: As Figure 1 - Figure 6As shown in the figure, an embodiment of the present invention provides a melting and casting device for high-temperature aluminum alloy casting and forming, including: an insertion tube 25 is inserted with an insertion rod 45. One side of the insertion rod 45 away from the furnace body 11 is connected with a feeding hopper 41. Both ends of the feeding hopper 41 are connected with clamping plates 43 through first connecting plates 42. The clamping plates 43 are elastic plates 62. The clamping plates 43 are adapted to the U-shaped plate 61U. The clamping plates 43 are in contact with the inner wall of the U-shaped plate 61U under the pressing action. The bottom of the feeding hopper 41 is communicated with an insertion tube 44, and the insertion tube 44 is inserted into the feeding pipe 13.

[0084] The feeding pipe, the insertion tube 44, the insertion rod 45, and the clamping plate 43 form a whole and jointly constitute a feeding member. The overall structure is simple and the cost is low. It can be matched and manufactured according to the mold 12, which is convenient for adapting to molds 12 with small batches, multiple varieties, complex structures, and precise pouring required at specific positions.

[0085] During use, insert the insertion tube 44 into the feeding pipe 13, insert the insertion rod 45 into the insertion tube 25, and press the clamping plate 43 so that the clamping plate 43 is in contact with the U-shaped plate 61U. The installation method is simple, which is convenient for the repair and replacement of the feeding hopper 41. The insertion rod 45 and the insertion tube 25 can limit the movement of the feeding member in the vertical direction, and the clamping plate 43 in contact with the U-shaped plate 61U can limit the movement of the feeding member in the horizontal direction, ensuring the stability of the feeding member.

[0086] The present invention covers any substitutions, modifications, equivalent methods, and solutions made on the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, in order to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0087] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A melting and casting device for high temperature aluminum alloy casting, comprising: A furnace body (11), a mold (12), wherein the top of the mold (12) is connected to a plurality of feed pipes (13), characterized in that it comprises: A barrel (21), the barrel (21) being arranged between the furnace body (11) and the mold (12); a discharge port (56) being provided through the bottom of one end of the barrel (21) away from the furnace body (11); two U-shaped plates (61) being symmetrically distributed on both sides of the discharge port (56); a flow control plate (54) being arranged outside the discharge port (56); the flow control plate (54) being used to control the opening area of ​​the discharge port (56) or to seal the discharge port (56) under the rotation of the rotating part; and the end of the barrel (21) away from the furnace body (11) being controlled in its inclination angle under the action of the telescopic member; An elastic plate (62), the top of the elastic plate (62) being connected to the bottom of the U-shaped plate (61), the elastic plate (62) being S-shaped, the bottom of each elastic plate (62) being connected to a scraper (63), and each scraper (63) being provided with an arc-shaped side groove (64), an arc-shaped middle groove (66), and a discharge groove (65) on a side close to the flow control plate (54), the bottom of the arc-shaped side groove (64), the bottom of the arc-shaped middle groove (66), and the bottom of the discharge groove (65) all coincide with the middle plane of one end of the scraper (63), and one end of one arc-shaped side groove (64) is connected to one end of another arc-shaped side groove (64) through a plurality of arc-shaped middle grooves (66).

2. The high temperature aluminum alloy casting device according to claim 1, characterized in that: The distance between the tip of the scraper (63) and the axis of the cylinder (21) is equal to the distance between the side of the flow control plate (54) away from the stepper motor (51) and the axis of the cylinder (21); the side of the flow control plate (54) close to the scraper (63) is a curved surface convex outwards; and the distance between the two ends of the flow control plate (54) close to the stepper motor (51) is smaller than the distance between the two ends of the flow control plate (54) away from the stepper motor (51).

3. The high temperature aluminum alloy casting device according to claim 1, characterized in that: The average curvature radius of the curve on which each arc surface on the elastic plate (62) is located is 18-20 mm.

4. The high temperature aluminum alloy casting device according to claim 1, characterized in that: The arcuate side grooves (64) are provided at both ends of the scraper (63); the arcuate middle groove (66) is provided between two arcuate side grooves (64); adjacent arcuate middle grooves (66) are connected; the middle of each arcuate side groove (64) and arcuate middle groove (66) is connected to a discharge groove (65); the bottom of the discharge groove (65) coincides with the tip of the scraper (63); the arcuate side groove (64) and arcuate middle groove (66) are both arcuate grooves opening upward; the distance from one end of the arcuate side groove (64) to the axis of the cylinder (21) is greater than the distance from the arcuate middle groove (66) to the axis of the cylinder (21); the scraper (63) scrapes off the casting liquid inside the rotating flow control plate (54) under the squeezing action of the flow control plate (54); the elastic plate (62) accelerates the falling speed of the casting liquid remaining on the scraper (63) through the elastic recovery action.

5. The high temperature aluminum alloy casting device according to claim 1, characterized in that: A sealing frame (55) is connected to the side of the cylinder (21), the sealing frame (55) is connected to the discharge port (56), and the arc surface of the sealing frame (55) away from the stepping motor (51) is in the same plane as the side of the cylinder (21).

6. The high temperature aluminum alloy casting device according to claim 5, characterized in that: The sealing frame (55) is made of ceramic material, and the flow control plate (54) is made of either polytetrafluoroethylene material or graphite material.

7. The high temperature aluminum alloy casting device according to claim 1, characterized in that: The barrel (21) is used to transfer the casting liquid poured into the furnace body (11) to the mold (12); the side of the barrel (21) close to one end of the furnace body (11) is connected to two side plates (22); the two side plates (22) are symmetrically distributed along the axis of the barrel (21); the side of each side plate (22) close to the furnace body (11) is connected to a wing plate (23); a feed arc plate (24) is arranged between the two wing plates (23); the side of the feed arc plate (24) away from the furnace body (11) is connected to the side of the barrel (21) close to the furnace body (11); the diameter of the feed arc plate (24) gradually narrows along the axis of the barrel (21); the feed arc plate (24) close to the furnace body (11) is narrowed; The diameter of the side is smaller than the diameter of the side of the feed arc plate (24) away from the furnace body (11), the two wing plates (23) are both arc plates, the two wing plates (23) gradually expand along the axial direction of the hydraulic cylinder (31), the distance between the two wing plates (23) close to one end of the hydraulic cylinder (31) is greater than the distance between the two wing plates (23) away from one end of the hydraulic cylinder (31), the flow control plate (54) is arranged on the outside of the discharge port (56), the flow control plate (54) is connected to the rotating part of the stepping motor (51), the top of the end of the cylinder (21) away from the furnace body is connected to the hydraulic cylinder (31), and the telescopic end of the hydraulic cylinder (31) controls the inclination angle of the cylinder (21) according to a preset angle with the cylinder (21).

8. The high temperature aluminum alloy casting device according to claim 7, characterized in that: Two rotating rods (32) are connected to the side of the cylinder (21) at one end close to the furnace body (11), each of the rotating rods (32) is rotatably connected to an outer cylinder (33), the outer cylinder (33) is fixedly connected to a flat plate (36) via a second support plate (35), both ends of the flat plate (36) close to the furnace body (11) are connected to extension plates (37), both sides of the hydraulic cylinder (31) are connected to the top of the flat plate (36) via a first support plate (34), and two U-shaped grooves (27) are provided on the side of the cylinder (21) away from the furnace body (11), and the bottom of each U-shaped groove (27) is connected to the U-shaped plate (61) close to the stepping motor. The stepping motor (51) is connected to one side of the furnace body (51), the side of the cylinder (21) away from the furnace body (11) is connected to a bottom plate (26), the shape of the bottom plate (26) is adapted to the shape of the cylinder (21), the side of the flow control plate (54) close to the furnace body (11) is provided with an insert cylinder (25), the top of the insert cylinder (25) is connected to the bottom of the side of the cylinder (21), the fixed part of the stepping motor (51) is connected to the side of the bottom plate (26) away from the furnace body (11), the rotating part of the stepping motor (51) is connected to the top end of the second connecting plate (53) through a rotating shaft (52), and the bottom end of the second connecting plate (53) is connected to the flow control plate (54).

9. The high temperature aluminum alloy casting device according to claim 8, characterized in that: Each of the scrapers (63) is arranged at one end of a U-shaped groove (27) close to the flow control plate (54), and the U-shaped groove (27) is used to accommodate the flow control plate (54) after the discharge port (56) is fully opened.

10. The high temperature aluminum alloy casting device according to claim 8, characterized in that: The insert cylinder (25) is plugged with an insert rod (45), and the side of the insert rod (45) away from the furnace body (11) is connected to a lower hopper (41). Both ends of the lower hopper (41) are connected to a clamping plate (43) via a first connecting plate (42), and the clamping plate (43) is an elastic plate (62). The clamping plate (43) is adapted to the U-shaped plate (61), and the clamping plate (43) abuts against the inner wall of the U-shaped plate (61) under the action of pressing. The bottom of the lower hopper (41) is connected to an insert pipe (44), and the insert pipe (44) is plugged with a feed pipe (13).

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