Centrifugal casting of aluminum articles into a liquid

Abstract

This application discloses a centrifugal casting liquid inlet device for aluminum products, belonging to the field of centrifugal casting. The device includes a fixed base, an input pipe, and a power rod driven by a servo motor. A centrifugal casting chamber is rotatably connected to the side of the fixed base. A detachable cover plate is threaded onto the side of the centrifugal casting chamber. A gear is fixedly connected to the outer side of the power rod. An inlet pipe is rotatably connected to the side of the input pipe via a pipe connector. This device outputs casting solution into the input pipe and activates the power rod. In conjunction with gear one, the inlet pipe, gear two, a limiting ring, a moving rod one, a rack one, a fixed plate one, a spring one, a pipe connector two, gear three, and a nozzle, the casting solution can be sprayed to the position between the side wall and the circular wall of the centrifugal casting chamber, increasing the coverage area of ​​the casting solution.

Description

Technical Field

[0001] This invention belongs to the field of centrifugal casting, specifically relating to a liquid inlet device for centrifugal casting of aluminum products. Background Technology

[0002] Centrifugal casting is an advanced casting process in which molten metal is poured into a rotating mold, and the molten metal fills the mold and solidifies under centrifugal force. Centrifugal force allows the molten metal to form a hollow cylindrical free surface within the mold, eliminating the need for a core and creating hollow castings, greatly simplifying the production process of sleeves and pipes. Centrifugal force also enhances the molten metal's ability to fill the mold, making it suitable for producing alloys with poor fluidity and thin-walled castings.

[0003] Chinese Patent CN119259939B, published on March 18, 2025, discloses a centrifugal casting device for ultra-high temperature alloy parts, which includes a conveying mechanism with a casting port for casting and can simultaneously push the liquid casting material into the interior of the casting mold; a rotary drive device, as the driving component of the entire device, can simultaneously rotate the mold and the conveying pipe inside the conveying mechanism.

[0004] In the aforementioned application, a rotating conveying pipe is installed to ensure that the casting solution rotates at the same speed as the mold during the casting process, thereby preventing the molding sand layer inside the mold from being eroded by the casting solution and thus improving the service life of the mold. However, during the liquid feeding process, the casting solution is difficult to be output to the position between the side wall and the circular wall of the casting chamber, which limits the length of the cast aluminum products and thus affects the applicability of the device. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a centrifugal casting liquid feeding device for aluminum products, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides a centrifugal casting liquid inlet device for aluminum products, comprising a fixed base, an input pipe, and a power rod driven by a servo motor. A centrifugal casting chamber is rotatably connected to the side of the fixed base. A detachable cover plate is threaded onto the side of the centrifugal casting chamber. A gear is fixedly connected to the outer side of the power rod. A liquid inlet pipe is rotatably connected to the side of the input pipe via a pipe joint. Gears are mounted on the outer sides of both the centrifugal casting chamber and the liquid inlet pipe, and gears mesh with gears. A limiting ring is fixedly connected to the side of the cover plate. A moving rod is slidably connected to the top of the liquid inlet pipe. A gear is fixedly connected to the top of the moving rod. A fixed plate is fixedly connected to the top of the liquid inlet pipe. A spring is mounted on the side of the moving rod. A pipe joint is rotatably connected to the top of the liquid inlet pipe. A gear is fixedly connected to the outer side of the pipe joint. A tilted nozzle is mounted on the top of the pipe joint. The centrifugal casting chamber is equipped with auxiliary components, including a striking component. This device allows the casting solution to be sprayed onto the area between the side wall and the circular wall of the centrifugal casting chamber, increasing the coverage area of ​​the casting solution.

[0007] Furthermore, the first toothed rod is located on the side of the limiting ring, and the first toothed rod is in contact with the limiting ring.

[0008] Furthermore, the end of the spring away from the moving rod is mounted on the fixed plate.

[0009] Furthermore, the auxiliary component includes a torsion spring rod rotatably connected to the top of the inlet pipe and having a torsion spring inside. A second moving rod and a sliding rod are slidably connected to the top of the inlet pipe. A first rotating rod is fixedly connected to the outside of the torsion spring rod, and a vibration rod is fixedly connected to the top of the sliding rod. By setting up the auxiliary component, the vibration rod can intermittently strike the second pipe joint, reducing air bubbles in the casting solution within the second pipe joint, thereby reducing the possibility of porosity in the casting solution output from the nozzle and improving the casting effect of the device.

[0010] Furthermore, when the auxiliary component is in the enabled state, the first movable rod can come into contact with the second movable rod.

[0011] Furthermore, the rotating rod one is located on the side of the moving rod two, and the rotating rod one and the moving rod two are hinged together.

[0012] Furthermore, the vibration rod is located on the side of the rotating rod, and the vibration rod and the rotating rod are hinged together.

[0013] Furthermore, the striking assembly includes a cam fixed to the outside of the power rod, a fixing plate two fixedly connected to the side of the cover plate, a moving rod three slidably connected inside the fixing plate two, a spring two assembled between the moving rod three and the fixing plate two, an inclined block fixedly connected to the side of the moving rod three, a transmission plate connected to the side of the cover plate via the spring three, and a striking block connected to the side of the transmission plate via the spring four. By configuring the striking assembly, the striking block intermittently strikes the inlet pipe, reducing air bubbles in the casting solution within the inlet pipe, thereby reducing the possibility of porosity in the casting solution output from other outlets and further improving the casting effect of the device.

[0014] Furthermore, the third movable rod is located on the side of the cam, and the third movable rod is in contact with the cam.

[0015] Furthermore, the transmission plate is located on the side of the inclined block, and the transmission plate is in contact with the inclined block.

[0016] The advantages of this application are: (1) In this application, the casting solution is output into the input pipe and the power rod is activated. In conjunction with gear one, liquid inlet pipe, gear two, limiting ring, moving rod one, rack one, fixing plate one, spring one, pipe joint two, gear three and nozzle, the casting solution can be sprayed to the position between the side wall and the circular wall of the centrifugal casting chamber, thereby increasing the coverage of the casting solution.

[0017] (2) In this application, the moving rod 1 in the reciprocating state can drive the moving rod 2 to move. In conjunction with the torsion spring rod, the moving rod 2, the sliding rod and the rotating rod 1, the vibrating rod can intermittently strike the pipe joint 2, reducing the air bubbles in the casting solution inside the pipe joint 2, thereby reducing the possibility of pores in the casting solution output from the nozzle and improving the casting effect of the device.

[0018] (3) In this application, the power rod in the rotating state can drive the cam fixedly connected to it to rotate synchronously. In conjunction with the fixed plate 2, the moving rod 3, the spring 2, the inclined block, the spring 3, the transmission plate and the spring 4, the striking block can perform intermittent striking operation on the liquid inlet pipe, reduce the air bubbles in the casting solution in the liquid inlet pipe, thereby reducing the possibility of air bubbles in the casting solution output from other outlets, and further improving the casting effect of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of some parts of the present invention; Figure 4 This is a three-dimensional structural diagram of some parts of the present invention; Figure 5 This is a top view of the part-restricting ring of the present invention; Figure 6 This is a front view of the part-restricting ring of the present invention; Figure 7 This is a three-dimensional structural diagram of the auxiliary component of the present invention; Figure 8 This is a three-dimensional structural diagram of some parts of the auxiliary component of the present invention; Figure 9 This is a three-dimensional structural diagram of the striking component of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point A in the middle.

[0020] Explanation of key figure labels: 100. Fixed base; 200. Input pipe; 300. Power rod; 400. Centrifugal casting chamber; 500. Cover plate; 600. Gear 1; 1000. Liquid inlet pipe; 1100. Gear 2; 701. Restricting ring; 702. Moving rod 1; 703. Gear 1; 704. Fixed plate 1; 705. Spring 1; 706. Pipe joint 2; 707. Gear 3; 708. Nozzle; 800. Auxiliary component; 801. Torsion spring rod; 802. Moving rod two; 803. Sliding rod; 804. Rotating rod one; 805. Vibration rod; 900. Striking assembly; 901. Cam; 902. Fixed plate two; 903. Moving rod three; 904. Spring two; 905. Inclined block; 906. Spring three; 907. Transmission plate; 908. Spring four; 909. Striking block. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] Example 1, please refer to Figures 1-6A centrifugal casting liquid feeding device for aluminum products includes a fixed base 100, an input pipe 200, and a power rod 300 driven by a servo motor. A centrifugal casting chamber 400 is rotatably connected to the side of the fixed base 100. A removable cover plate 500 is threaded onto the side of the centrifugal casting chamber 400. A gear 600 is fixedly connected to the outer side of the power rod 300. An inlet pipe 1000 is rotatably connected to the side of the input pipe 200 via a pipe joint. Gears 1100 are mounted on the outer sides of both the centrifugal casting chamber 400 and the inlet pipe 1000, meshing with gear 600. A limiting ring 701 is fixedly connected to the side of the cover plate 500. The inlet pipe 100... A sliding rod 702 is slidably connected to the top of the inlet pipe 1000. A toothed rod 703 is fixedly connected to the top of the sliding rod 702. The toothed rod 703 is located on the side of the limiting ring 701 and is in contact with the limiting ring 701. A fixing plate 704 is fixedly connected to the top of the inlet pipe 1000. A spring 705 is mounted on the side of the sliding rod 702. The end of the spring 705 away from the sliding rod 702 is mounted on the fixing plate 704. A pipe joint 706 is rotatably connected to the top of the inlet pipe 1000. A gear 707 is fixedly connected to the outside of the pipe joint 706. A nozzle 708 in a tilted state is mounted on the top of the pipe joint 706.

[0023] In practical use, the above-mentioned equipment outputs casting solution into the input pipe 200 and activates the power rod 300. The casting solution in the input pipe 200 moves to the inlet pipe 1000 through the pipe joint. The rotating power rod 300 drives the gear 600 to rotate, which in turn drives the meshing gear 1100 to rotate. The rotating gear 1100 drives the inlet pipe 1000 and the centrifugal casting chamber 400 to rotate synchronously. The rotating inlet pipe 1000 drives the rack 703 to rotate synchronously. During the rotation of the rack 703, the limiting ring 701 restricts it. Due to the special shape of the limiting ring 701, the rack 703 first moves to the left. At this time, the rack 703 moving to the left drives the moving rod 702 fixedly connected to it to stretch the spring 705 and move away from it. The fixed plate 704 moves to one side, causing the rack 703 to drive the gear 707 meshing with it to rotate during the movement. When the rack 703 moves to the left limit position, it gradually loses the restriction of the limiting ring 701 and is reset under the action of the spring 705. Similarly, the gear 707 is reset, thus putting the gear 707 in a 180° reciprocating rotation state. The rotating gear 707 can drive the pipe joint 706 fixedly connected to it to rotate, causing the pipe joint 706 to drive the nozzle 708 mounted on it to rotate synchronously. The nozzle 708 has a certain tilt angle relative to the liquid inlet pipe 1000, so that when the two nozzles 708 spray the casting solution, they can spray the casting solution to the position between the side wall and the circular wall of the centrifugal casting chamber 400.

[0024] Example 2, please refer to Figures 3-8 Based on Embodiment 1, an auxiliary component 800 is installed inside the centrifugal casting chamber 400. The auxiliary component 800 includes a torsion spring rod 801 rotatably connected to the top of the liquid inlet pipe 1000 and having a torsion spring inside. A second movable rod 802 and a sliding rod 803 are slidably connected to the top of the liquid inlet pipe 1000. When the auxiliary component 800 is in the active state, the first movable rod 702 can contact the second movable rod 802. When the first movable rod 702 compresses the first spring 705 and moves towards the side closer to the first fixed plate 704, the first movable rod 702 gradually moves to the second movable rod 802 and drives the second movable rod 802 to move to the side by squeezing the second movable rod 802.

[0025] A rotating rod 804 is fixedly connected to the outer side of the torsion spring rod 801. The rotating rod 804 is located to the side of the moving rod 802, and the rotating rod 804 and the moving rod 802 are hinged together. A vibrating rod 805 is fixedly connected to the top of the sliding rod 803. The vibrating rod 805 is located to the side of the rotating rod 804, and the vibrating rod 805 and the rotating rod 804 are hinged together. When the moving rod 802 moves to the side, it drives the rotating rod 804, which is hinged to it, to rotate. During the rotation of the rotating rod 804, the torsion spring rod 801, which is fixedly connected to it, rotates synchronously, so that the rotating rod 804 drives the vibrating rod 805, which is hinged to it, to move.

[0026] When the moving rod 702 is reset, the vibrating rod 805 can be reset under the action of the torsion spring rod 801. In this way, the vibrating rod 805 can intermittently strike the pipe joint 706, reducing the air bubbles in the casting solution inside the pipe joint 706, thereby reducing the possibility of pores in the casting solution output from the nozzle 708 and improving the casting effect of the device.

[0027] In practical use, when the moving rod 702 compresses the spring 705 and moves closer to the fixed plate 704, the moving rod 702 gradually moves to the moving rod 802. By squeezing the moving rod 802, it moves to the side. The moving rod 802 in the moving state can drive the rotating rod 804, which is hinged to it, to rotate. During the rotation, the rotating rod 804 drives the torsion spring rod 801, which is fixedly connected to it, to rotate synchronously. This causes the rotating rod 804 to drive the vibrating rod 805, which is hinged to it, to move. The vibrating rod 805 is slidably connected to the inlet pipe 1000 through the sliding rod 803, which is fixedly connected to it. During the rotation, the rotating rod 804 drives the vibrating rod 805 to move towards the pipe joint 706. When the moving rod 702 returns to its original position, the vibrating rod 805 returns to its original position under the action of the torsion spring rod 801. In this way, the vibrating rod 805 intermittently strikes the pipe joint 706.

[0028] Example 3, please refer to Figures 7-10 Based on Embodiment 1 or Embodiment 2, the centrifugal casting chamber 400 is equipped with a striking assembly 900, which includes a cam 901 fixed to the outside of the power rod 300. The power rod 300, when rotating, can drive the cam 901, which is fixedly connected to it, to rotate synchronously.

[0029] A fixing plate 902 is fixedly connected to the side of the cover plate 500. A moving rod 903 is slidably connected inside the fixing plate 902. The moving rod 903 is located on the side of the cam 901 and is in contact with the cam 901. A spring 904 is installed between the moving rod 903 and the fixing plate 902. When the protruding part of the cam 901 rotates to the moving rod 903, the cam 901 can press the moving rod 903. The pressed moving rod 903 can stretch the spring 904 and move to the side.

[0030] A wedge block 905 is fixedly connected to the side of the moving rod 903. A transmission plate 907 is connected to the side of the cover plate 500 via a spring 906. The transmission plate 907 is located to the side of the wedge block 905, and the transmission plate 907 is in contact with the wedge block 905. When the moving rod 903 stretches the spring 904 and moves to the side, it can drive the wedge block 905 fixedly connected to it to move, so that the wedge block 905 presses the transmission plate 907. The compressed transmission plate 907 then compresses the spring 906 and moves closer to the cover plate 500.

[0031] A striking block 909 is connected to the side of the transmission plate 907 via a spring 908. When the transmission plate 907 moves toward the side closer to the cover plate 500, the transmission plate 907 can drive the striking block 909 toward the side closer to the inlet pipe 1000 via the spring 908, thereby striking the inlet pipe 1000.

[0032] As the cam 901 continues to rotate, when its protruding part moves away from the moving rod 903, the striking block 909 can be reset. Thus, the striking block 909, in its reciprocating motion, can intermittently strike the inlet pipe 1000, reducing air bubbles in the casting solution within the inlet pipe 1000. This reduces the likelihood of porosity in the casting solution output from other outlets, further improving the casting effect of the device.

[0033] In practical use, the rotating power rod 300 drives the cam 901, which is fixedly connected to it, to rotate synchronously. When the protruding part of the cam 901 rotates to the moving rod 903, the cam 901 presses the moving rod 903. The pressed moving rod 903 stretches the spring 904 and moves to the side. The moving rod 903, in its moving state, drives the inclined block 905, which is fixedly connected to it, to move. This causes the inclined block 905 to press the transmission plate 907. The pressed transmission plate 907 then compresses the spring 906 and moves closer to the cover plate 500. The transmission plate 907, in its reciprocating state, can drive the striking block 909 to move closer to the inlet pipe 1000 via the spring 908. As the cam 901 continues to rotate, when its protruding part moves away from the moving rod 903, the moving rod 903 loses its restriction and can be reset under the action of the spring 904. The moving rod 903 in the reset state can drive the inclined block 905 to reset, and the transmission plate 907 loses its restriction and can be reset under the action of the spring 906, thereby enabling the striking block 909 to complete the reset. The striking block 909 in the reciprocating state can perform intermittent striking operations on the inlet pipe 1000.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A centrifugal casting liquid inlet device for aluminum products, comprising a fixed base, an input pipe, and a power rod driven by a servo motor, wherein a centrifugal casting chamber is rotatably connected to the side of the fixed base, a removable cover plate is threaded onto the side of the centrifugal casting chamber, a gear is fixedly connected to the outer side of the power rod, an inlet pipe is rotatably connected to the side of the input pipe via a pipe joint, and a gear is mounted on the outer side of both the centrifugal casting chamber and the inlet pipe, the gear meshing with the gear. The device is characterized in that... A limiting ring is fixedly connected to the side of the cover plate, a moving rod is slidably connected to the top of the liquid inlet pipe, a toothed rod is fixedly connected to the top of the moving rod, a fixing plate is fixedly connected to the top of the liquid inlet pipe, a spring is mounted on the side of the moving rod, a pipe joint is rotatably connected to the top of the liquid inlet pipe, a gear is fixedly connected to the outside of the pipe joint, and a nozzle in a tilted state is mounted on the top of the pipe joint. The centrifugal casting chamber is equipped with auxiliary components, and the centrifugal casting chamber is equipped with a hammering component.

2. The centrifugal casting liquid feeding device for aluminum products according to claim 1, characterized in that, The first toothed rod is located on the side of the limiting ring, and the first toothed rod is in contact with the limiting ring.

3. The centrifugal casting liquid feeding device for aluminum products according to claim 2, characterized in that, The end of the spring away from the moving rod is mounted on the fixed plate.

4. The centrifugal casting liquid feeding device for aluminum products according to claim 3, characterized in that, The auxiliary component includes a torsion spring rod rotatably connected to the top of the inlet pipe and having a torsion spring inside. A second moving rod and a sliding rod are slidably connected to the top of the inlet pipe. A first rotating rod is fixedly connected to the outside of the torsion spring rod, and a vibration rod is fixedly connected to the top of the sliding rod.

5. The centrifugal casting liquid feeding device for aluminum products according to claim 4, characterized in that, When the auxiliary component is activated, the first movable rod can come into contact with the second movable rod.

6. The centrifugal casting liquid feeding device for aluminum products according to claim 5, characterized in that, The rotating rod one is located on the side of the moving rod two, and the rotating rod one and the moving rod two are hinged together.

7. The centrifugal casting liquid feeding device for aluminum products according to claim 6, characterized in that, The vibration rod is located on the side of the rotating rod, and the vibration rod and the rotating rod are hinged together.

8. The centrifugal casting liquid feeding device for aluminum products according to claim 7, characterized in that, The striking assembly includes a cam fixed to the outside of the power rod, a fixing plate two fixedly connected to the side of the cover plate, a moving rod three slidably connected inside the fixing plate two, a spring two assembled between the moving rod three and the fixing plate two, an inclined block fixedly connected to the side of the moving rod three, a transmission plate connected to the side of the cover plate through the spring three, and a striking block connected to the side of the transmission plate through the spring four.

9. The centrifugal casting liquid feeding device for aluminum products according to claim 8, characterized in that, The third movable rod is located on the side of the cam, and the third movable rod is in contact with the cam.

10. The centrifugal casting liquid feeding device for aluminum products according to claim 9, characterized in that, The transmission plate is located on the side of the inclined block, and the transmission plate is in contact with the inclined block.

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