A raw material melting device for die casting

Abstract

The present invention relates to the technical field of melting raw materials for die castings, and specifically to a raw material melting device for die castings, comprising a furnace body and a top cover, wherein the top cover can be vertically movably installed on the furnace body, and further comprising an impurity removal component, a bubble removal component and a drive component, wherein the impurity removal component comprises a cylindrical shaft, a partition, multiple flip plates, multiple opening and closing mechanisms and an annular filter plate, the cylindrical shaft passes through the top cover and is rotatably connected thereto, the partition can be horizontally rotatably installed on the periphery of the cylindrical shaft, a plurality of semicircular grooves are provided on the top of the partition, and the plurality of semicircular grooves are circumferentially distributed on the partition near the cylindrical shaft. In order to improve the effect of removing impurities from molten metal and degas the molten metal at the same time, the present invention rotates the inclined flip plate around the cylindrical shaft to form a reflux of the molten metal in the furnace body, filters out impurities through the annular filter plate and the partition, and discharges air in the molten metal in the form of bubbles by vibrating the fan blades at high speed, thereby improving the product quality of the die castings.

Description

Technical Field

[0001] The invention relates to the technical field of die casting raw material melting, in particular to a die casting raw material melting device. Background Art

[0002] Die casting is a metal casting process. Its principle is to apply high pressure to molten metal within a mold cavity, forcing the liquid or semi-liquid metal to flow into the mold cavity at high speed and high pressure. Under pressure, the metal is then formed and solidified, resulting in a casting. Due to its advantages such as high production efficiency, high dimensional accuracy, high material utilization, and the ability to produce complex shapes, the die casting process is widely used in the production of automotive parts, electronic equipment housings, hardware accessories, and other products.

[0003] The melting of die-casting raw materials is one of the key links in the die-casting process, and a furnace is usually used for melting. During the melting process, appropriate stirring can be performed to ensure that the molten metal has a uniform temperature and composition, which helps to improve the quality of the casting. For example, a raw material melting device for automotive die-casting parts with Chinese patent publication number CN117346530B includes a furnace, a heating device, and a discharge pipe; it also includes a mounting frame, and the lifting assembly includes a lifting drive mechanism and a cover plate; this solution uses a flipping stirring plate. When the stirring plate is open, the metal raw material can be stirred to improve the efficiency of the raw material melting. When the stirring plate is closed, impurities in the molten metal can be removed to improve the quality of the die-casting parts.

[0004] However, the following problems still exist: first, it is inconvenient to remove the gas in the molten metal, which easily leads to defects such as pores in the casting; second, due to the flow of the molten metal during stirring, some impurities easily flow through the chute at the stirring plate to the bottom of the furnace, making it impossible to salvage them, and the effect of removing impurities needs to be improved. Summary of the Invention

[0005] The object of the present invention is to provide a raw material melting device for die castings, which can further improve the removal effect of impurities in the molten metal and degas the molten metal, thereby improving the quality of the castings.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Provided is a raw material melting device for die castings, comprising a furnace body and a top cover, the top cover can be vertically movably installed on the furnace body, and also comprises an impurity removal component, a bubble removal component and a driving component, the impurity removal component comprises a cylinder shaft, a partition, multiple flip plates, multiple opening and closing mechanisms, an annular filter plate and multiple torsion springs, the cylinder shaft passes through the top cover and is rotatably connected thereto, the partition can be horizontally rotatably installed on the periphery of the cylinder shaft, a plurality of semicircular grooves are provided on the top of the partition, the multiple semicircular grooves are circumferentially distributed on the partition near the cylinder shaft, the flip plate is rotatably connected to the inner wall of the semicircular groove, the torsion spring is sleeved on the periphery of one end of the flip plate, one end of the torsion spring is fixedly connected to the flip plate, and the other end of the torsion spring is fixedly connected to the inner wall of the semicircular groove, the top of the annular filter plate is fixedly connected to the bottom of the top cover, the bottom of the annular filter plate is an inclined structure away from the cylinder shaft, the periphery of the annular filter plate and the periphery of the partition are both in contact with the inner wall of the furnace body, the opening and closing mechanism comprises a fan-shaped box body, The clamping block, pushing block and hydraulic rod, the fan-shaped box body is located on one side of the semicircular groove, the top of the fan-shaped box body is fixedly connected to the bottom of the partition, one side of the clamping block is a sloped structure and passes through the side wall of the fan-shaped box body and is slidably connected to it, one side of the push block is slidably connected to the other side of the clamping block and conflicts with each other, one end of the hydraulic rod is fixedly connected to the inner wall of the fan-shaped box body, the telescopic end of the hydraulic rod is fixedly connected to one end of the push block, the top of the partition and the top of the annular filter plate are both provided with multiple penetrating filter holes, the bubble removal assembly and the drive assembly are both installed in the furnace body, the bubble removal assembly is used to discharge the air inside the molten metal, and the drive assembly is used to drive the impurity removal assembly and the bubble removal assembly to work, when the push block is located at one end of the fan-shaped box body, the top of the clamping block conflicts with the bottom of the flip plate, and the flip plate is in a horizontal state, when the push block is located at the other end of the fan-shaped box body, the inclined surface on one side of the clamping block conflicts with the bottom of the flip plate, and the flip plate is in an inclined state.

[0008] Preferably, the bubble removal assembly includes a rotating shaft, multiple fan blades, a telescopic locking mechanism and a pair of vibration mechanisms. The rotating shaft can be vertically moved on the cylindrical shaft through the telescopic locking mechanism. The multiple fan blades are distributed in a circle around the periphery of the rotating shaft and are fixedly connected to it. The fan blades are arranged at an angle. Two vibration mechanisms are symmetrically installed on both sides of the rotating shaft. The vibration mechanism is used to drive the multiple fan blades to vibrate at high speed.

[0009] Preferably, the vibration mechanism includes a knocking block and a pair of tension springs, one end of the tension spring is fixedly connected to the bottom of the knocking block, a pair of trapezoidal grooves are provided on the top of the rotating shaft, the other end of the tension spring is fixedly connected to the bottom of the trapezoidal groove, one end of the knocking block is slidably connected to the trapezoidal groove and conflicts with its bottom wall, an annular groove is provided on the inner wall of the cylindrical shaft, and a plurality of protrusions are fixedly connected to the bottom wall of the annular groove, and the other end of the knocking block is slidably connected to the annular groove and conflicts with the top of the protrusion.

[0010] Preferably, the telescopic locking mechanism includes a rotating ring and a pair of return springs, the bottom of the rotating ring is fixedly connected to one end of the return spring, the other end of the return spring is fixedly connected to the top of the rotating shaft, a limiting groove and a pair of vertical grooves are provided on the inner wall of the cylindrical shaft, the limiting groove is rotatably connected to the rotating ring, the bottom of the vertical groove is connected to the annular groove, and the knocking block is slidably connected to the vertical groove.

[0011] Preferably, the telescopic locking mechanism also includes an insert block and a socket block, the bottom of the socket block is fixedly connected to the bottom wall of the furnace body, a slot is provided on the top of the socket block, the top of the insert block is fixedly connected to the bottom of the rotating shaft, the insert block is plugged into the slot and contacts the inner wall thereof.

[0012] Preferably, the telescopic locking mechanism also includes a block and a pair of thrust springs, the block is slidingly connected to the inner wall of the slot, one end of the thrust spring is fixedly connected to the bottom of the block, and the other end of the thrust spring is fixedly connected to the bottom wall of the slot, and the top of the block and the bottom of the insert block are in conflict with each other.

[0013] Preferably, the opening and closing mechanism also includes an insert rod and a reverse pushing mechanism, both ends of the insert rod respectively pass through the side walls at both ends of the fan-shaped box body and are slidably connected thereto, a plurality of circular holes are provided on the periphery of the cylinder shaft and the inner wall of the furnace body, and the reverse pushing mechanism is installed in the fan-shaped box body, and the reverse pushing mechanism is used to drive the insert rod and the push block to move in opposite directions. When the push block is located at one end of the fan-shaped box body, one end of the insert rod is plugged into and matched with the circular hole on the periphery of the cylinder shaft, and the other end of the insert rod is separated from the circular hole on the inner wall of the furnace body. When the push block is located at the other end of the fan-shaped box body, one end of the insert rod is separated from the circular hole on the periphery of the cylinder shaft, and the other end of the insert rod is plugged into and matched with the circular hole on the inner wall of the furnace body.

[0014] Preferably, the reverse pushing mechanism includes a spur gear and a pair of racks, the spur gear is rotatably connected to the inner wall of the fan-shaped box body, the two racks are fixedly connected to the opposite sides of the push block and the insertion rod respectively, the spur gear is located between the two racks and the rack and the spur gear are engaged with each other.

[0015] Preferably, the drive assembly includes a frame, a hydraulic cylinder, a motor and a pair of bevel gears, the bottom of the frame is fixedly connected to the top of the furnace body, one end of the top cover is slidably connected to the frame, the top of the hydraulic cylinder passes through the frame and is fixedly connected thereto, the telescopic end of the hydraulic cylinder passes through the barrel shaft and is rotatably connected to the top of the rotating shaft, the bottom of the motor is fixedly connected to the bottom of the top cover, and the two bevel gears are meshed with each other, one of the bevel gears is coaxially connected to the outer periphery of the barrel shaft, and the other bevel gear is coaxially connected to the output shaft of the motor.

[0016] Beneficial effects of the present invention:

[0017] 1. When melting the raw materials, the present invention keeps the flip plate tilted and rotates around the cylinder axis, stirring the raw materials, accelerating melting and ensuring uniform heating of the raw materials. After the raw materials are fully melted into molten metal, the stirring of the molten metal drives the molten metal to flow toward the top. The flip plate is close to the cylinder axis, and the bottom of the annular filter plate is away from the cylinder axis. Therefore, the molten metal surges upward through the semicircular groove close to the cylinder axis and flows back downward from a position away from the cylinder axis, forming a circulation. During the flow of the molten metal, impurities contained in it pass through the top of the annular filter plate and are filtered out by the filter holes, thereby further improving the impurity removal effect and enhancing the product quality of the die-casting.

[0018] 2. When the telescopic locking mechanism of the present invention is extended, the rotating shaft and the cylindrical shaft can rotate relative to each other. Rotating the cylindrical shaft at this time can drive the vibration mechanism to operate, and the high-speed vibration of the fan blades can expel air from the molten metal in the form of bubbles. When the telescopic locking mechanism is shortened, the rotating shaft and the cylindrical shaft rotate synchronously, so that the fan blades can stir the raw materials, further improving the stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention Figure 1 .

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention Figure 2 .

[0022] Figure 3 It is a schematic diagram of the furnace structure of the present invention.

[0023] Figure 4 The furnace structure of the present invention is a cross-sectional view Figure 1 .

[0024] Figure 5 The furnace structure of the present invention is a cross-sectional view Figure 2 .

[0025] Figure 6 It is a schematic diagram of the top cover structure of the present invention.

[0026] Figure 7 It is a bottom view of the partition structure of the present invention.

[0027] Figure 8 It is a cross-sectional view of the partition structure of the present invention.

[0028] Figure 9 The opening and closing mechanism structure of the present invention is split Figure 1 .

[0029] Figure 10 The opening and closing mechanism structure of the present invention is split Figure 2 .

[0030] Figure 11 It is a structural breakdown diagram of the bubble removal component of the present invention.

[0031] Figure 12 This is a cross-sectional view of the cylindrical shaft structure of the present invention Figure 1 .

[0032] Figure 13 This is a cross-sectional view of the cylindrical shaft structure of the present invention Figure 2 .

[0033] Figure 14 yes Figure 4 A magnified view of the structure at point A.

[0034] In the picture:

[0035] 1. Furnace body; 10. Round hole; 11. Top cover;

[0036] 2. Impurity removal assembly; 20. Cylinder shaft; 200. Annular groove; 201. Protrusion; 202. Limiting groove; 203. Vertical groove; 21. Partition plate; 210. Semicircular groove; 22. Flip plate; 23. Opening and closing mechanism; 230. Sector box; 231. Block; 232. Push block; 233. Hydraulic rod; 234. Insert rod; 24. Reverse pushing mechanism; 240. Spur gear; 241. Rack; 25. Annular filter plate; 250. Filter hole; 26. Torsion spring;

[0037] 3. Bubble removal assembly; 30. Rotating shaft; 300. Trapezoidal groove; 31. Fan blade; 32. Telescopic locking mechanism; 320. Rotating ring; 321. Return spring; 322. Insert block; 323. Socket block; 324. Slot; 325. Abutment block; 326. Thrust spring; 33. Vibration mechanism; 330. Knocking block; 331. Tension spring;

[0038] 4. Drive assembly; 40. Frame; 41. Hydraulic cylinder; 42. Motor; 43. Bevel gear. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0040] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0041] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by those skilled in the art in specific circumstances.

[0043] like Figures 1 to 14 As shown:

[0044] A raw material melting device for die castings includes a furnace body 1 and a top cover 11. The top cover 11 is vertically movably installed on the furnace body 1. The top cover 11 is moved upward and opened to facilitate loading. The top cover 11 is lowered and fits against the furnace body 1, which can seal the furnace body 1 to melt the raw materials. It also includes an impurity removal component 2, a bubble removal component 3 and a drive component 4. The impurity removal component 2 includes a cylindrical shaft 20, a partition 21, a plurality of flip plates 22, a plurality of opening and closing mechanisms 23, an annular filter plate 25 and a plurality of torsion springs 26. The cylindrical shaft 20 passes through the top cover 11 and is rotatably connected thereto. The partition 21 is horizontally rotatably installed on the outer periphery of the cylindrical shaft 20. A plurality of semicircular grooves 210 are provided on the top of the partition 21. The plurality of semicircular grooves 210 are circumferentially distributed on the partition 21 near the cylindrical shaft 20. The flip plate 22 is rotatably connected to the inner wall of the semicircular grooves 210. The torsion spring 26 is sleeved on the outer periphery of one end of the flip plate 22. One end of the torsion spring 26 is fixedly connected to the flip plate 22. Then, the other end of the torsion spring 26 is fixedly connected to the inner wall of the semicircular groove 210, the top of the annular filter plate 25 is fixedly connected to the bottom of the top cover 11, and the bottom of the annular filter plate 25 is a sloped structure away from the barrel shaft 20. The outer periphery of the annular filter plate 25 and the outer periphery of the partition 21 are both in contact with the inner wall of the furnace body 1. When the raw materials are melted, the raw materials are poured into the furnace body 1 and the top cover 11 is covered. The torsion spring 26 rebounds and drives the flip plate 22 to rotate and open, and keeps it in an inclined state. At this time, the barrel shaft 20 is rotated, and the partition 21 is coaxially driven with the barrel shaft 20, driving multiple flip plates 22 to rotate around the barrel shaft 20, which can stir the raw materials, accelerate melting and make the raw materials heated evenly. At the same time, since the flip plate 22 is in an inclined state, after the raw material is fully melted into molten metal, the molten metal will be driven to flow to the top while being stirred. The flip plate 22 is close to the cylindrical shaft 20, and the bottom of the annular filter plate 25 is far away from the cylindrical shaft 20. Therefore, the molten metal will surge upward through the semicircular groove 210 close to the cylindrical shaft 20, and flow back downward from a position far away from the cylindrical shaft 20 to form a circulation. During the flow of the molten metal, impurities contained in it will pass through the top of the annular filter plate 25 and be filtered out by the filter hole 250, thereby further improving the impurity removal effect and improving the product quality of the die-casting.The opening and closing mechanism 23 includes a fan-shaped box body 230, a block 231, a push block 232 and a hydraulic rod 233. The fan-shaped box body 230 is located on one side of the semicircular groove 210. The top of the fan-shaped box body 230 is fixedly connected to the bottom of the partition 21. One side of the block 231 is a slope structure and passes through the side wall of the fan-shaped box body 230 and is slidably connected thereto. One side of the push block 232 is slidably connected to the other side of the block 231 and conflicts with each other. One end of the hydraulic rod 233 is fixedly connected to the inner wall of the fan-shaped box body 230. The telescopic end of the hydraulic rod 233 is fixedly connected to one end of the push block 232. A plurality of penetrating filter holes 250 are provided on the top of the partition 21 and the top of the annular filter plate 25. The push block 232 is driven to move by the hydraulic rod 233 to change the block 2 31, thereby controlling the opening and closing of the flip plate 22, and since the torsion spring 26 is always in a compressed state, the inclined structure on one side of the block 231 supports the flip plate 22, and the rebound of the torsion spring 26 pushes the flip plate 22, so that the flip plate 22 is always in an inclined state after opening, thereby driving the molten metal to surge up. When removing impurities, the flip plate 22 is opened, so that impurities can move upward to the top of the partition 21 through the semicircular groove 210. When the impurity removal is completed, the flip plate 22 is closed, and then the top cover 11 is opened, and the molten metal falls back into the furnace body 1 through the filter hole 250. The impurities are filtered out along with the partition 21 and the annular filter plate 25, further ensuring that the impurities are filtered out and preventing the impurities from falling back. The bubble removal assembly 3 and the drive assembly 4 are both installed in the furnace body 1. The bubble removal assembly 3 is used to exhaust the air inside the molten metal, and the drive assembly 4 is used to drive the impurity removal assembly 2 and the bubble removal assembly 3 to work. When the push block 232 is located at one end of the fan-shaped box body 230, the top of the block 231 and the bottom of the flip plate 22 conflict with each other, and the flip plate 22 is in a horizontal state. At this time, the semicircular groove 210 on the partition 21 is closed by the flip plate 22, preventing impurities from falling. When the push block 232 is located at the other end of the fan-shaped box body 230, the inclined surface on one side of the block 231 conflicts with the bottom of the flip plate 22, and the flip plate 22 is in a tilted state. At this time, the semicircular groove 210 is opened, and the impurities can be driven by the tilted flip plate 22 to follow the molten metal through the semicircular groove 210 and rise.

[0045] like Figures 1 to 14 As shown:

[0046] The bubble removal assembly 3 includes a rotating shaft 30, a plurality of fan blades 31, a telescopic locking mechanism 32 and a pair of vibration mechanisms 33. The rotating shaft 30 is vertically movable and installed on the cylindrical shaft 20 through the telescopic locking mechanism 32. The plurality of fan blades 31 are circumferentially distributed on the periphery of the rotating shaft 30 and are fixedly connected thereto. The fan blades 31 are arranged at an angle. Two vibration mechanisms 33 are symmetrically installed on both sides of the rotating shaft 30. The vibration mechanism 33 is used to drive the plurality of fan blades 31 to vibrate at high speed. When the telescopic locking mechanism 32 is extended, the rotating shaft 30 and the cylindrical shaft 20 can rotate relative to each other. At this time, the cylindrical shaft 20 is rotated, which can drive the vibration mechanism 33 to work, and the air in the molten metal is discharged in the form of bubbles through the high-speed vibration of the fan blades 31. When the telescopic locking mechanism 32 is shortened, the rotating shaft 30 and the cylindrical shaft 20 rotate synchronously, so that the raw materials can be stirred by the fan blades 31, further improving the stirring effect.

[0047] like Figures 1 to 13 As shown:

[0048] The vibration mechanism 33 includes a knocking block 330 and a pair of tension springs 331, one end of the tension spring 331 is fixedly connected to the bottom of the knocking block 330, a pair of trapezoidal grooves 300 are opened at the top of the rotating shaft 30, the other end of the tension spring 331 is fixedly connected to the bottom of the trapezoidal groove 300, one end of the knocking block 330 is slidably connected to the trapezoidal groove 300 and conflicts with its bottom wall, an annular groove 200 is opened on the inner wall of the cylindrical shaft 20, and a plurality of protrusions 201 are fixedly connected to the bottom wall of the annular groove 200, and the other end of the knocking block 330 is slidably connected to the annular groove 200 and conflicts with the top of the protrusion 201. When removing bubbles, the rotating shaft 30 is stationary by extending the telescopic locking mechanism 32. At this time, the knocking block 330 is located in the annular groove 200. Then the cylindrical shaft 20 is rotated, driving the multiple protrusions 201 to rotate. The protrusions 201 lift the knocking block 330, causing the tension spring 331 to be stretched. Then the tension spring 331 rebounds and drives the knocking block 330 to fall back and hit the bottom wall of the trapezoidal groove 300, causing the rotating shaft 30 to vibrate. The multiple protrusions 201 rotate rapidly, causing the knocking block 330 to hit the rotating shaft 30 quickly and continuously. The vibration is continuously transmitted to the multiple blades through the rotating shaft 30, so that the gas in the molten metal is separated, and the contact area is increased by multiple fan blades 31 to further improve the degassing efficiency.

[0049] like Figures 1 to 14 As shown:

[0050] The telescopic locking mechanism 32 includes a rotating ring 320 and a pair of return springs 321. The bottom of the rotating ring 320 is fixedly connected to one end of the return spring 321, and the other end of the return spring 321 is fixedly connected to the top of the rotating shaft 30. A limiting groove 202 and a pair of vertical grooves 203 are provided on the inner wall of the cylindrical shaft 20. The limiting groove 202 is rotatably connected to the rotating ring 320, and the bottom of the vertical groove 203 is connected to the annular groove 200. The knocking block 330 is slidably connected to the vertical groove 203. When the top cover 11 is closed, the return spring 321 is in a relaxed state, and the knocking block 330 is located in the vertical groove 203, causing the cylindrical shaft 20 to rotate, which can drive the rotating shaft 30 to rotate synchronously. When the rotating shaft 30 moves down and the knocking block 330 slides into the annular groove 200, the return spring 321 is stretched to fix the rotating shaft 30. At this time, the cylindrical shaft 20 is rotated, the rotating ring 320 rotates in the limiting groove 202, and the knocking block 330 slides in the annular groove 200, so that the rotating shaft 30 and the cylindrical shaft 20 can achieve relative rotation.

[0051] like Figures 1 to 14 As shown:

[0052] The telescopic locking mechanism 32 also includes an insert block 322 and a sleeve block 323. The bottom of the sleeve block 323 is fixedly connected to the bottom wall of the furnace body 1. The top of the sleeve block 323 defines a slot 324. The top of the insert block 322 is fixedly connected to the bottom of the rotating shaft 30. The insert block 322 engages with the slot 324 and contacts the inner wall of the slot 324. When the return spring 321 is stretched, the rotating shaft 30 moves downward, driving the insert block 322 into the slot 324. This causes the insert block 322 and the inner wall of the sleeve block 323 to lock together, preventing the rotating shaft 30 from rotating. This ensures that the rotating shaft 30 is not rotated by friction when the cylindrical shaft 20 rotates.

[0053] like Figures 1 to 14 As shown:

[0054] The telescopic locking mechanism 32 also includes a stopper 325 and a pair of thrust springs 326. The stopper 325 is slidably connected to the inner wall of the slot 324. One end of the thrust spring 326 is fixedly connected to the bottom of the stopper 325, and the other end of the thrust spring 326 is fixedly connected to the bottom wall of the slot 324. The top of the stopper 325 contacts the bottom of the insert 322. When the insert 322 is inserted into the slot 324, the stopper 325 is pushed downward, squeezing the thrust spring 326 and compressing it. When the insert 322 leaves the slot 324, the thrust spring 326 rebounds, pushing the stopper 325 upward, closing the slot 324. This prevents the raw materials from getting stuck in the slot 324 during the process of being poured into the furnace body 1. The thrust spring 326 also prevents the bottom of the rotating shaft 30 from colliding with the furnace body 1 due to vibration, thereby extending the service life of the device.

[0055] like Figures 1 to 10 As shown:

[0056] The opening and closing mechanism 23 also includes an insertion rod 234 and a reverse pushing mechanism 24. The two ends of the insertion rod 234 respectively pass through the side walls of the fan-shaped box body 230 and are slidably connected thereto. A plurality of circular holes 10 are provided on the periphery of the cylinder shaft 20 and the inner wall of the furnace body 1. The reverse pushing mechanism 24 is installed in the fan-shaped box body 230. The reverse pushing mechanism 24 is used to drive the insertion rod 234 and the push block 232 to move in opposite directions. During the impurity removal process, one end of the insertion rod 234 is inserted into the circular hole 10 on the periphery of the cylinder shaft 20, so that the partition 21 and the cylinder shaft 20 rotate synchronously and drive them. During the degassing process, the other end of the insertion rod 234 is inserted into the circular hole 10 on the inner wall of the furnace body 1, so that the cylinder shaft 20 rotates and the partition 21 is stationary, thereby preventing the partition 21 from breaking up the bubbles and making it unfavorable for the discharge of bubbles. When the push block 232 is located at one end of the fan-shaped box body 230, one end of the rod 234 engages with the circular hole 10 on the outer periphery of the cylindrical shaft 20, while the other end of the rod 234 separates from the circular hole 10 on the inner wall of the furnace body 1. At this point, the partition 21 rotates synchronously with the cylindrical shaft 20, and the rotation of the cylindrical shaft 20 drives the partition 21 to rotate and remove impurities. When the push block 232 is located at the other end of the fan-shaped box body 230, one end of the rod 234 separates from the circular hole 10 on the outer periphery of the cylindrical shaft 20, while the other end of the rod 234 engages with the circular hole 10 on the inner wall of the furnace body 1. At this point, the partition 21 and the cylindrical shaft 20 can rotate relative to each other, allowing the partition 21 to remain stationary during degassing.

[0057] like Figures 1 to 10 As shown:

[0058] The reverse propulsion mechanism 24 includes a spur gear 240 and a pair of racks 241. The spur gear 240 is rotatably connected to the inner wall of the sector-shaped box body 230. The two racks 241 are fixedly connected to the opposite sides of the push block 232 and the insertion rod 234, respectively. The spur gear 240 is located between the two racks 241, and the racks 241 and the spur gears 240 are meshed with each other. When the hydraulic rod 233 is operated to push the push block 232, it drives one of the racks 241 to move. The meshing transmission between the racks 241 and the spur gear 240 causes the spur gear 240 to rotate, and the other rack 241 drives the insertion rod 234 to move, thereby achieving reverse movement of the push block 232 and the insertion rod 234, allowing the insertion rod 234 to be inserted into the circular hole 10.

[0059] like Figures 1 to 13 As shown:

[0060] The drive assembly 4 includes a frame 40, a hydraulic cylinder 41, a motor 42 and a pair of bevel gears 43. The bottom of the frame 40 is fixedly connected to the top of the furnace body 1, and one end of the top cover 11 is slidably connected to the frame 40. The top of the hydraulic cylinder 41 passes through the frame 40 and is fixedly connected thereto. The telescopic end of the hydraulic cylinder 41 passes through the cylindrical shaft 20 and is rotatably connected to the top of the rotating shaft 30. When the hydraulic cylinder 41 is working, its telescopic end drives the rotating shaft 30 to move up and down. When moving upward, the return spring 321 rebounds to shorten the telescopic locking mechanism 32, and the cylindrical shaft 20 moves upward with the rotating shaft 30, driving the top cover 11 to slide upward along the frame 40 and open. Otherwise, the top cover 11 is closed and the telescopic locking mechanism 32 is extended. The bottom of the motor 42 is fixedly connected to the bottom of the top cover 11. The two bevel gears 43 are meshed with each other, one of which is coaxially connected to the outer periphery of the cylindrical shaft 20, and the other is coaxially connected to the output shaft of the motor 42. When the motor 42 is powered on, its output shaft drives one of the bevel gears 43 to rotate, and through the meshing transmission between the two bevel gears 43, the other bevel gear 43 and the barrel shaft 20 are driven to rotate, thereby driving the impurity removal component 2 and the bubble removal component 3 to work.

[0061] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting; they are intended solely to facilitate a clear description of the positional relationships and functions of various components.

Claims

1. A raw material melting device for die castings, comprising a furnace body (1) and a top cover (11), wherein the top cover (11) is vertically movably mounted on the furnace body (1), characterized in that: The invention also includes an impurity removal component (2), a bubble removal component (3) and a driving component (4). The impurity removal component (2) includes a cylindrical shaft (20), a partition (21), a plurality of flip plates (22), a plurality of opening and closing mechanisms (23), an annular filter plate (25) and a plurality of torsion springs (26). The cylindrical shaft (20) passes through the top cover (11) and is rotatably connected thereto. The partition (21) is horizontally rotatably mounted on the outer periphery of the cylindrical shaft (20). The top of the partition (21) is provided with a plurality of semicircular grooves (210) extending therethrough. The plurality of semicircular grooves (210) are The filter element (25) is circumferentially distributed on the partition (21) near the cylinder shaft (20), the flip plate (22) is rotatably connected to the inner wall of the semicircular groove (210), the torsion spring (26) is sleeved on the outer periphery of one end of the flip plate (22), one end of the torsion spring (26) is fixedly connected to the flip plate (22), and the other end of the torsion spring (26) is fixedly connected to the inner wall of the semicircular groove (210), the top of the annular filter plate (25) is fixedly connected to the bottom of the top cover (11), the bottom of the annular filter plate (25) is a sloped structure away from the cylinder shaft (20), and the outer periphery of the annular filter plate (25) and The outer periphery of the partition (21) is in contact with the inner wall of the furnace body (1). The opening and closing mechanism (23) includes a fan-shaped box body (230), a clamping block (231), a push block (232) and a hydraulic rod (233). The fan-shaped box body (230) is located on one side of the semicircular groove (210). The top of the fan-shaped box body (230) is fixedly connected to the bottom of the partition (21). One side of the clamping block (231) is a slope structure and passes through the side wall of the fan-shaped box body (230) and is slidably connected thereto. One side of the push block (232) is slidably connected to the other side of the clamping block (231) and is mutually connected. The hydraulic rod (233) and the driving assembly (4) are fixedly connected to each other, one end of the hydraulic rod (233) is fixedly connected to the inner wall of the fan-shaped box body (230), the telescopic end of the hydraulic rod (233) is fixedly connected to one end of the push block (232), the top of the partition (21) and the top of the annular filter plate (25) are both provided with a plurality of through filter holes (250), the bubble removal assembly (3) and the driving assembly (4) are both installed in the furnace body (1), the bubble removal assembly (3) is used to discharge the air inside the molten metal, and the driving assembly (4) is used to drive the impurity removal assembly (2) and the bubble removal assembly (3) to work; When the push block (232) is located at one end of the fan-shaped box body (230), the top of the clamping block (231) and the bottom of the flip plate (22) are in contact with each other, and the flip plate (22) is in a horizontal state; When the push block (232) is located at the other end of the fan-shaped box body (230), the inclined surface on one side of the clamping block (231) contacts the bottom of the flip plate (22), and the flip plate (22) is in a tilted state.

2. The raw material melting device for die casting according to claim 1, characterized in that: The bubble removal assembly (3) comprises a rotating shaft (30), a plurality of fan blades (31), a telescopic locking mechanism (32) and a pair of vibrating mechanisms (33). The rotating shaft (30) is mounted on the cylindrical shaft (20) in a vertically movable manner through the telescopic locking mechanism (32). The plurality of fan blades (31) are distributed in a circular manner on the periphery of the rotating shaft (30) and are fixedly connected thereto. The fan blades (31) are arranged in an inclined manner. The two vibrating mechanisms (33) are symmetrically mounted on both sides of the rotating shaft (30). The vibrating mechanisms (33) are used to drive the plurality of fan blades (31) to vibrate at high speed.

3. The raw material melting device for die casting according to claim 2, characterized in that: The vibration mechanism (33) includes a striking block (330) and a pair of tension springs (331), one end of the tension spring (331) is fixedly connected to the bottom of the striking block (330), a pair of trapezoidal grooves (300) are provided on the top of the rotating shaft (30), the other end of the tension spring (331) is fixedly connected to the bottom of the trapezoidal groove (300), one end of the striking block (330) is slidably connected to the trapezoidal groove (300) and contacts the bottom wall thereof, an annular groove (200) is provided on the inner wall of the cylindrical shaft (20), a plurality of protrusions (201) are fixedly connected to the bottom wall of the annular groove (200), and the other end of the striking block (330) is slidably connected to the annular groove (200) and contacts the top of the protrusion (201).

4. The raw material melting device for die casting according to claim 3, characterized in that: The telescopic locking mechanism (32) includes a rotating ring (320) and a pair of return springs (321). The bottom of the rotating ring (320) is fixedly connected to one end of the return spring (321). The other end of the return spring (321) is fixedly connected to the top of the rotating shaft (30). The inner wall of the cylindrical shaft (20) is provided with a limiting groove (202) and a pair of vertical grooves (203). The limiting groove (202) is rotatably connected to the rotating ring (320). The bottom of the vertical groove (203) is communicated with the annular groove (200). The knocking block (330) is slidably connected to the vertical groove (203).

5. The raw material melting device for die casting according to claim 4, characterized in that: The telescopic locking mechanism (32) further includes an insert block (322) and a sleeve block (323), wherein the bottom of the sleeve block (323) is fixedly connected to the bottom wall of the furnace body (1), and a slot (324) is provided on the top of the sleeve block (323). The top of the insert block (322) is fixedly connected to the bottom of the rotating shaft (30), and the insert block (322) and the slot (324) are plugged in and in contact with the inner wall thereof.

6. The raw material melting device for die casting according to claim 5, characterized in that: The telescopic locking mechanism (32) further includes a stopper (325) and a pair of thrust springs (326), wherein the stopper (325) is slidably connected to the inner wall of the slot (324), one end of the thrust spring (326) is fixedly connected to the bottom of the stopper (325), and the other end of the thrust spring (326) is fixedly connected to the bottom wall of the slot (324), and the top of the stopper (325) and the bottom of the insert (322) are in contact with each other.

7. The raw material melting device for die casting according to claim 1, characterized in that: The opening and closing mechanism (23) further includes an inserting rod (234) and a reverse pushing mechanism (24), wherein both ends of the inserting rod (234) respectively pass through the side walls of the fan-shaped box body (230) and are slidably connected thereto, and a plurality of circular holes (10) are provided on the outer periphery of the cylindrical shaft (20) and the inner wall of the furnace body (1). The reverse pushing mechanism (24) is installed in the fan-shaped box body (230), and is used to drive the inserting rod (234) and the push block (232) to move in the opposite direction. When the push block (232) is located at one end of the fan-shaped box body (230), one end of the insertion rod (234) is plugged into the circular hole (10) on the outer periphery of the cylindrical shaft (20), and the other end of the insertion rod (234) is separated from the circular hole (10) on the inner wall of the furnace body (1); When the push block (232) is located at the other end of the fan-shaped box body (230), one end of the insertion rod (234) is separated from the circular hole (10) on the outer periphery of the cylindrical shaft (20), and the other end of the insertion rod (234) is plugged into the circular hole (10) on the inner wall of the furnace body (1).

8. The raw material melting device for die casting according to claim 7, characterized in that: The reverse pushing mechanism (24) includes a spur gear (240) and a pair of racks (241). The spur gear (240) is rotatably connected to the inner wall of the fan-shaped box body (230). The two racks (241) are fixedly connected to the push block (232) and the opposite side of the insertion rod (234). The spur gear (240) is located between the two racks (241), and the racks (241) and the spur gear (240) are meshed with each other.

9. The raw material melting device for die casting according to claim 1, characterized in that: The driving assembly (4) includes a frame (40), a hydraulic cylinder (41), a motor (42) and a pair of bevel gears (43). The bottom of the frame (40) is fixedly connected to the top of the furnace body (1). One end of the top cover (11) is slidably connected to the frame (40). The top of the hydraulic cylinder (41) passes through the frame (40) and is fixedly connected thereto. The telescopic end of the hydraulic cylinder (41) passes through the cylindrical shaft (20) and is rotatably connected to the top of the rotating shaft (30). The bottom of the motor (42) is fixedly connected to the bottom of the top cover (11). The two bevel gears (43) are meshed with each other. One of the bevel gears (43) is coaxially connected to the outer periphery of the cylindrical shaft (20), and the other bevel gear (43) is coaxially connected to the output shaft of the motor (42).

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