Aluminum alloy casting shakeout device

Abstract

This utility model relates to the technical field of casting sand removal devices, specifically a sand removal device for aluminum alloy castings. It includes a mounting base, an operating frame fixedly mounted on the upper surface of the mounting base, and a sand removal trough corresponding to the position of the operating frame on the surface of the mounting base. A collection box is slidably connected inside the sand removal trough via a slide rail. A sand-shaking mechanism is installed inside the operating frame, and an auxiliary feeding mechanism is installed on the upper surface of the mounting base. The sand-shaking mechanism includes an installation groove on the rear wall inside the operating frame. Under the operation of a vibrating motor, the fixed frame vibrates, loosening the sand core inside the casting. Simultaneously, the operation of a servo motor drives a reciprocating screw to rotate. Guided by a guide slider, the threaded block drives the fixed frame to reciprocate left and right through the rotation of the reciprocating screw, causing the fixed frame to vibrate left and right, shaking off the loose sand core inside the casting, thus achieving the purpose of sand removal. The principle is simple, and the sand removal effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of casting sand removal devices, specifically a sand removal device for aluminum alloy castings. Background Technology

[0002] "Aluminum alloy casting sand removal" refers to the process in aluminum alloy sand casting where, after the casting mold is opened, the casting is separated from the sand mold (molding sand) and sand core that enclose it, and the molding sand and core sand adhering to the inner and outer surfaces of the casting are removed.

[0003] Patent document CN217941823U discloses a vibratory sand removal device, including a base assembly, a vibration assembly, a moving assembly, and a machine cover. The machine cover is installed on top of the base assembly, and the inner cavity of the machine cover and the top of the base assembly form a sand removal chamber. Several air pressure guns are provided on the top of the sand removal chamber. The machine cover has a loading window. The vibration assembly is installed on top of the base assembly and is located inside the sand removal chamber. The moving assembly includes a drive assembly and a casting mounting platform. The drive assembly is installed on top of the vibration assembly. The casting mounting platform is used to fix and install aluminum alloy castings. The casting mounting platform is connected to the drive assembly for transmission, allowing the casting mounting platform to move within the sand removal chamber. This application uses the drive assembly to move the casting mounting platform back and forth, so that the aluminum alloy casting fixed on the casting mounting platform can be blown and pressed by multiple air pressure guns, causing sand present in the gaps or corners of the aluminum alloy casting to fall off, ensuring that all sand on the aluminum alloy casting falls off, thus not delaying the next processing step of the aluminum alloy casting.

[0004] The above-mentioned solution lacks a clamping mechanism on the surface of the mounting platform, which makes the castings placed on the mounting platform prone to collisions and falling due to the left-right and up-down movement of the mounting platform during actual use. This causes damage to the castings, increases rework time, and the flat setting of the castings makes it impossible to remove the sand core inside the castings, resulting in an unsatisfactory sand removal effect. Utility Model Content

[0005] This utility model discloses a sand removal device for aluminum alloy castings, which aims to solve the technical problem that existing sand removal devices cannot effectively remove the sand core inside the castings.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sand removal device for aluminum alloy castings includes a mounting base, an operating frame fixedly mounted on the upper surface of the mounting base, a sand removal trough corresponding to the position of the operating frame on the surface of the mounting base, a collection box slidably connected inside the sand removal trough via a slide rail, a sand shaking mechanism inside the operating frame, and an auxiliary feeding mechanism on the upper surface of the mounting base.

[0008] The sand-shaking mechanism includes a mounting groove opened in the rear wall of the operating frame. A servo motor is fixedly installed on the left side surface of the operating frame. The output shaft of the servo motor extends into the interior of the mounting groove and is fixedly connected to a reciprocating lead screw. A threaded block is threadedly connected to the surface of the reciprocating lead screw, and a fixing frame is fixedly connected to the front of the threaded block.

[0009] The operating frame has mounting openings on both sides. A vibration motor is fixedly mounted on the left side of the fixed frame through the mounting opening. A mounting cylinder is embedded in the right side of the fixed frame through the mounting opening. An electric push rod is fixedly mounted on the inner right side of the mounting cylinder. The telescopic end of the electric push rod extends into the interior of the fixed frame and is fixedly connected to a backing plate. A controller is provided on the upper surface of the mounting base.

[0010] In a preferred embodiment, both the upper and lower surfaces of the threaded block are provided with guide sliders, and the inner top and bottom walls of the mounting groove are provided with guide grooves for the guide sliders to slide.

[0011] By setting a guide slider, the threaded block can drive the fixed frame to reciprocate left and right through the rotation of the reciprocating screw.

[0012] In a preferred embodiment, a pressure sensor is embedded in the left inner wall of the fixing frame, and flexible pads are provided on both the left inner wall of the fixing frame and the surface of the abutment.

[0013] The flexible pads provide protection when the electric push rod presses against the casting.

[0014] In a preferred embodiment, the back of the operating frame is rotatably connected to a limiting block for restricting the collection box via a rotating seat.

[0015] In a preferred embodiment, the auxiliary feeding mechanism includes a sliding groove formed on the upper surface of the mounting base, and a feeding plate is slidably connected inside the sliding groove via a T-shaped slide rail.

[0016] The feeding plate allows castings to be desanded to be pushed into a fixed frame for easy installation.

[0017] In a preferred embodiment, both sides of the feeding plate are provided with fixing grooves, the inner wall of the fixing groove is fixedly connected with a spring, the end of the spring away from the inner wall of the fixing groove is fixedly connected with a stop block, the end of the stop block adjacent to the inner wall of the sliding groove is provided with a limiting tooth, the inner wall of the sliding groove is provided with a toothed groove strip that matches the limiting tooth, the front of the feeding plate is provided with a sliding strip opening that extends into the inside of the fixing groove, and the front of the stop block is fixedly connected with a push block through the sliding strip opening.

[0018] By setting up a stop block and a limiting tooth, the position of the feeding plate can be limited.

[0019] As can be seen from the above, the aluminum alloy casting sand removal device provided by this utility model has the following technical effects.

[0020] Firstly, the vibration motor can cause the casting to vibrate through the fixed frame, loosening the sand core inside the casting. At the same time, the servo motor drives the reciprocating screw to rotate. Under the guidance of the guide slider, the threaded block drives the fixed frame to move back and forth through the rotation of the reciprocating screw, making the fixed frame shake left and right. The sand removal process is a multi-dimensional vibration, which can quickly shake off the loose sand core inside the casting. The principle is simple and the sand removal effect is good.

[0021] Secondly: Place the casting to be desanded on the feeding plate, push the feeding plate to move the casting on it to the fixed frame. At this time, the electric push rod runs and drives the abutment plate to clamp the casting to the inner left side of the fixed frame. During this process, the pressure of the abutment plate can be monitored by the pressure sensor to avoid damage or deformation of the casting due to excessive pressure, thereby reducing casting damage and completing the fixing of the casting. Then pull the feeding plate to reset. With the auxiliary feeding function of the feeding plate, it is not necessary to manually lift the casting for clamping, which provides convenience for loading and unloading. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a sand removal device for aluminum alloy castings proposed in this utility model.

[0023] Figure 2 This is a side sectional view of a sand removal device for aluminum alloy castings proposed in this utility model.

[0024] Figure 3 This is a top-section diagram of the operating frame of the sand removal device for aluminum alloy castings proposed in this utility model.

[0025] Figure 4 This is a top-section diagram of the fixed frame structure of the sand removal device for aluminum alloy castings proposed in this utility model.

[0026] Figure 5 This is a top-section diagram of the loading plate structure of a sand removal device for aluminum alloy castings proposed in this utility model.

[0027] Figure 6 This utility model proposes a sand removal device for aluminum alloy castings. Figure 5 Enlarged structural diagram at point A in the middle.

[0028] In the attached diagram: 1. Mounting base; 2. Operating frame; 3. Collection box; 4. Servo motor; 5. Reciprocating screw; 6. Threaded block; 7. Fixing frame; 8. Vibration motor; 9. Electric push rod; 10. Support plate; 11. Controller; 12. Guide slider; 13. Pressure sensor; 14. Limit block; 15. Feeding plate; 16. Spring; 17. Support block; 18. Limiting tooth; 19. Gear; 20. Push block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-6 A sand removal device for aluminum alloy castings includes a mounting base 1, an operating frame 2 fixedly mounted on the upper surface of the mounting base 1, a sand removal trough corresponding to the position of the operating frame 2 on the surface of the mounting base 1, a collection box 3 slidably connected inside the sand removal trough via a slide rail, a sand shaking mechanism inside the operating frame 2, and an auxiliary feeding mechanism on the upper surface of the mounting base 1.

[0031] The back of the operation frame 2 is rotatably connected to a limiting block 14 for limiting the collection box 3 via a rotating seat.

[0032] The sand-shaking mechanism includes a mounting groove opened in the rear wall of the operating frame 2. A servo motor 4 is fixedly installed on the left side surface of the operating frame 2. The output shaft of the servo motor 4 extends into the interior of the mounting groove and is fixedly connected to a reciprocating screw 5. A threaded block 6 is threadedly connected to the surface of the reciprocating screw 5. A fixing frame 7 is fixedly connected to the front of the threaded block 6.

[0033] Guide sliders 12 are provided on both the upper and lower surfaces of the threaded block 6. Guide grooves for sliding of guide sliders 12 are provided on the inner top and bottom walls of the mounting groove. Under the guidance of guide sliders 12, the threaded block 6 can drive the fixed frame 7 to reciprocate left and right through the rotation of the reciprocating screw 5.

[0034] Both sides of the operating frame 2 have mounting openings. The left side of the fixed frame 7 is fixedly mounted with a vibration motor 8 through the mounting opening. The right side of the fixed frame 7 is embedded with a mounting cylinder through the mounting opening. An electric push rod 9 is fixedly mounted on the inner wall of the right side of the mounting cylinder. The telescopic end of the electric push rod 9 extends into the interior of the fixed frame 7 and is fixedly connected to a backing plate 10. A controller 11 is provided on the upper surface of the mounting base 1.

[0035] A pressure sensor 13 is embedded in the left inner wall of the fixed frame 7. Flexible pads are provided on both the left inner wall of the fixed frame 7 and the surface of the abutment plate 10. The servo motor 4, vibration motor 8, electric push rod 9 and pressure sensor 13 are all electrically connected to the controller 11. The flexible pads can protect the casting when the electric push rod 9 presses against it.

[0036] Reference Figure 1 and Figure 4 In a preferred embodiment, the auxiliary feeding mechanism includes a sliding groove formed on the upper surface of the mounting base 1. The inside of the sliding groove is slidably connected to the feeding plate 15 via a T-shaped slide rail. With the feeding plate 15, the casting to be desanded can be pushed into the fixed frame 7, which is convenient for installation.

[0037] The feeding plate 15 has fixing grooves on both sides. A spring 16 is fixedly connected to the inner wall of the fixing groove. A stop block 17 is fixedly connected to the end of the spring 16 away from the inner wall of the fixing groove. A limiting tooth 18 is provided at the end of the stop block 17 adjacent to the inner wall of the sliding groove. A toothed groove strip 19 that matches the limiting tooth 18 is provided on the inner wall of the sliding groove. A sliding strip opening that penetrates into the fixing groove is provided on the front of the feeding plate 15. A push block 20 is fixedly connected to the front of the stop block 17 through the sliding strip opening. The position of the feeding plate 15 can be limited by the setting of the stop block 17 and the limiting tooth 18.

[0038] Working principle: During use, the casting to be desanded is placed on the loading plate 15, and the push block 20 is pushed and pulled to retract the abutment block 17 into the fixed groove, causing the limiting teeth 18 at the end of the abutment block 17 to separate from the toothed groove strip 19 on the inner wall of the sliding groove. Without the restriction of the limiting teeth 18, the loading plate 15 is pushed to move the casting on it into the fixed frame 7. At this time, the electric push rod 9 runs and drives the abutment plate 10 to clamp the casting on the left inner wall of the fixed frame 7. During this process, the pressure of the abutment plate 10 can be monitored by the pressure sensor 13. When the pressure reaches a certain value, the pressure sensor 13 controls the electric push rod 9 to stop through the controller 11 to prevent... Excessive pressure causes damage to the casting, thus completing the casting fixation work. Then, the feeding plate 15 is pulled back to its original position. With the auxiliary feeding function of the feeding plate 15, it is not necessary to manually lift and clamp the casting. During sand removal, the casting can be vibrated by the fixed frame 7 under the operation of the vibration motor 8, which loosens the sand core inside the casting. At the same time, the operation of the servo motor 4 drives the reciprocating screw 5 to rotate. Under the guidance of the guide slider 12, the threaded block 6 drives the fixed frame 7 to move back and forth through the rotation of the reciprocating screw 5, so that the fixed frame 7 reaches the state of left and right shaking, shaking off the loose sand core inside the casting, so as to achieve the purpose of sand removal.

[0039] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An apparatus for shakeout of an aluminum alloy casting, characterized by: Includes mounting base (1), with an operation frame (2) fixedly mounted on the upper surface of the mounting base (1), and a sand drop trough corresponding to the position of the operation frame (2) on the surface of the mounting base (1). A collection box (3) is slidably connected inside the sand drop trough via a slide rail. A sand shaking mechanism is provided inside the operation frame (2), and an auxiliary feeding mechanism is provided on the upper surface of the mounting base (1). The sand-shaking mechanism includes an installation groove opened in the rear wall of the operation frame (2). A servo motor (4) is fixedly installed on the left side surface of the operation frame (2). The output shaft of the servo motor (4) extends into the interior of the installation groove and is fixedly connected to a reciprocating screw (5). A threaded block (6) is threadedly connected to the surface of the reciprocating screw (5). A fixed frame (7) is fixedly connected to the front of the threaded block (6). The operation frame (2) has installation openings on both sides. The left side of the fixed frame (7) is fixedly installed with a vibration motor (8) through the installation opening. The right side of the fixed frame (7) is embedded with an installation cylinder through the installation opening. An electric push rod (9) is fixedly installed on the inner wall of the right side of the installation cylinder. The telescopic end of the electric push rod (9) extends into the interior of the fixed frame (7) and is fixedly connected with a stop plate (10). A controller (11) is provided on the upper surface of the mounting base (1).

2. An apparatus for shakeout of an aluminum alloy casting according to claim 1, characterized in that: The upper and lower surfaces of the threaded block (6) are provided with guide sliders (12), and the inner top and bottom walls of the mounting groove are provided with guide grooves for the guide sliders (12) to slide.

3. An apparatus for shakeout of aluminum alloy castings according to claim 1, characterized in that: A pressure sensor (13) is embedded in the left inner wall of the fixed frame (7), and flexible pads are provided on both the left inner wall of the fixed frame (7) and the surface of the abutment plate (10).

4. The apparatus of claim 1 wherein: The back of the operation frame (2) is rotatably connected to a limiting block (14) for limiting the collection box (3) via a rotating seat.

5. An apparatus for shakeout of aluminum alloy castings according to claim 1, characterized in that: The auxiliary feeding mechanism includes a sliding groove on the upper surface of the mounting base (1), and a feeding plate (15) is slidably connected inside the sliding groove via a T-shaped slide rail.

6. An apparatus for shakeout of an aluminum alloy casting according to claim 5, characterized in that: The feeding plate (15) has a fixing groove on both sides. A spring (16) is fixedly connected to the inner wall of the fixing groove. A stop block (17) is fixedly connected to the end of the spring (16) away from the inner wall of the fixing groove. A limit tooth (18) is provided at the end of the stop block (17) adjacent to the inner wall of the sliding groove. A toothed groove strip (19) that matches the limit tooth (18) is provided on the inner wall of the sliding groove. A sliding strip opening that penetrates into the fixing groove is provided on the front of the feeding plate (15). A push block (20) is fixedly connected to the front of the stop block (17) through the sliding strip opening.

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