Core shooter and manufacturing method of sand core

Abstract

The invention relates to the technical field of intelligent casting, and discloses a core shooter and a sand core manufacturing method.The core shooter comprises a device mounting frame, a horizontal moving sliding rail is mounted at the top of the device mounting frame, an air storage tank is mounted outside the horizontal moving sliding rail, and a material storage mechanism is mounted at the top of the horizontal moving sliding rail; and a sand shooting mechanism is mounted in the horizontal moving slide rail. When the two sand core molds are closed, the two limiting plate connecting rods make contact with each other to drive the demolding limiting plate to move towards the two sides, the mold connecting ring and the sand core extrusion plate can be connected with the bottom of the sand shooting opening after being combined, and the sand shooting opening can shoot sand into the demolding limiting plate through the sand core extrusion plate; and after sand shooting is completed, the sand shooting opening continues to move downwards and drives the sand core extrusion plate to move downwards, and when the sand core extrusion plate moves downwards, core sand in the air storage tank can be extruded, so that redundant air in the core sand is exhausted, and defects of the formed sand core are prevented.

Description

Technical Field

[0001] This invention relates to the field of intelligent casting technology, specifically to a core shooter and a method for manufacturing sand cores. Background Technology

[0002] A core shooter is a specialized casting device used to create temporary mold sand cores for the internal cavities of castings. It uses compressed air to inject core sand mixed with thermosetting resin at high speed into a core box, where it hardens under heating or chemical catalytic conditions. This replaces the traditional manual core-making process, significantly improving production efficiency and core precision.

[0003] Chinese patent CN103170584B discloses a cold box core shooting machine, including: a sand shooting mechanism, an electrical part, a base, a gas generator, a hydraulic system, and a screen. The electrical part, the base, the gas generator, and the hydraulic system are all located inside the screen. An opening is provided on the front side wall of the screen, and a sliding door is provided at the opening. The sand shooting mechanism is located on the upper part of the base. The base includes two air cushion moving guide rails, a lifting worktable, and a moving worktable. The moving worktable is located above the lifting worktable, and the two air cushion moving guide rails are respectively located on both sides of the lower surface of the moving worktable.

[0004] In the aforementioned patents and prior art, when producing sand cores using a core shooting machine, core sand needs to be injected into the sand core mold. During the sand shooting process, excessive air may exist in the core sand inside the sand core mold, leading to a decrease in the overall quality of the sand core. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a core shooter and a method for manufacturing sand cores.

[0006] A core shooting machine includes a device mounting frame, a horizontal moving slide rail mounted on the top of the device mounting frame, an air storage tank mounted on the outside of the horizontal moving slide rail, a material storage mechanism mounted on the top of the horizontal moving slide rail, a sand shooting mechanism mounted inside the horizontal moving slide rail, a mold mounting frame mounted on the outside of the device mounting frame, and a sand core forming mechanism mounted inside the mold mounting frame.

[0007] The sand-shooting mechanism is slidably installed inside the horizontal moving slide rail. The inside of the sand-shooting mechanism can be engaged with the bottom of the material storage mechanism, and the bottom of the sand-shooting mechanism can be inserted into the top of the sand core forming mechanism.

[0008] The sand-shooting mechanism can move horizontally along the interior of the horizontal sliding rail. When the sand-shooting mechanism moves horizontally, it can communicate with the bottom of the storage mechanism. The sand-shooting mechanism can move up and down to communicate with the top of the sand core forming mechanism. When the sand-shooting mechanism is connected to the sand core forming mechanism, it can perform sand-shooting operations on the sand core. When the sand-shooting mechanism is connected to the sand core forming mechanism, it can squeeze the sand core forming mechanism to expel excess air from inside the sand core forming mechanism.

[0009] Preferably, the storage mechanism includes a hopper mounting plate, which is mounted on top of a horizontal moving slide rail. A core sand storage hopper is mounted on top of the hopper mounting plate, and a core sand conveying pipe is connected to the bottom of the core sand storage hopper. A fixed connecting plate is connected to the bottom of the core sand conveying pipe, and a spring connecting rod is connected to the bottom of the fixed connecting plate. A movable connecting plate is connected to the movable end of the spring connecting rod.

[0010] The movable connecting plate is slidably installed at the bottom of the fixed connecting plate via a spring connecting rod, and the interior of the core sand storage chamber is connected to the bottom of the fixed connecting plate via a core sand conveying pipe.

[0011] Preferably, when the sand-shooting mechanism moves along the horizontal sliding rail toward the storage mechanism, it can contact the movable connecting plate and drive the movable connecting plate to move toward the elastic connecting rod. When the movable connecting plate moves toward the elastic connecting rod, the interior of the core sand storage bin can communicate with the interior of the sand-shooting mechanism through the core sand conveying pipe passing through the holes on the fixed connecting plate and the movable connecting plate.

[0012] When the sand-shooting mechanism contacts the movable connecting plate and causes the movable connecting plate to move toward the elastic connecting rod, the elastic connecting rod can be compressed. After the sand-shooting mechanism separates from the movable connecting plate, the elastic connecting rod rebounds and causes the movable connecting plate to move away from the elastic connecting rod.

[0013] Preferably, the sand-shooting mechanism includes a lifting hydraulic cylinder and a horizontal moving frame. The lifting hydraulic cylinder is installed on the top of the horizontal moving slide rail. A lifting hydraulic rod is installed inside the lifting hydraulic cylinder. A sealing piston is connected to the bottom of the lifting hydraulic rod. Moving rollers are installed on the outside of the horizontal moving frame. A lifting moving plate is installed inside the horizontal moving frame. A lifting elastic rod is connected to the bottom of the lifting moving plate. A sand-shooting sleeve is installed inside the lifting moving plate. A sand-shooting connection port is connected to the bottom of the sand-shooting connection port. A sand-shooting nozzle is connected to the bottom of the sand-shooting connection port. An electric telescopic rod is installed inside the horizontal moving slide rail.

[0014] The fixed end of the electric telescopic rod is installed inside the horizontal moving slide rail, and the telescopic end of the electric telescopic rod is connected to the outside of the horizontal moving frame.

[0015] Preferably, the horizontal moving frame is slidably mounted on the bottom of the horizontal moving slide rail via moving rollers, the bottom of the lifting moving plate is connected to the inside of the horizontal moving frame via a lifting elastic rod, and the sand-shooting sleeve is slidably mounted inside the horizontal moving frame via the lifting moving plate;

[0016] The electric telescopic rod can drive the horizontal moving frame to move horizontally along the horizontal moving slide rail via the moving rollers. When the horizontal moving frame moves, it can drive the sand-shooting sleeve and the sand-shooting nozzle to move synchronously. When the sand-shooting sleeve moves, it can communicate with the storage mechanism, and the core sand inside the storage mechanism can enter the interior of the sand-shooting sleeve.

[0017] Preferably, the interior of the sand-shooting sleeve is connected to the sand-shooting port through a sand-shooting connection port, the bottom of the sand-shooting port can be connected to the interior of the sand core forming mechanism, and the exterior of the sealing piston fits into the interior of the sand-shooting sleeve;

[0018] When the lifting hydraulic cylinder drives the lifting hydraulic rod to move downward, it can squeeze the inside of the sand-shooting sleeve through the sealing piston. When the sealing piston squeezes the inside of the sand-shooting sleeve, it can drive the sand-shooting sleeve to move downward. When the sand-shooting sleeve moves downward, it can drive the sand-shooting port to connect with the sand core forming mechanism. After the sand-shooting port is connected to the sand core forming mechanism, the inside of the sand-shooting sleeve performs sand-shooting operation on the inside of the sand core forming mechanism through the sand-shooting connection port and the sand-shooting port. The sealing piston can also drive the sand-shooting sleeve to continue to move downward and squeeze the inside of the sand core forming mechanism through the sand-shooting port.

[0019] Preferably, the sand core forming mechanism includes a fixed mounting plate, which is fixedly mounted on the top of the mold mounting frame. A horizontal hydraulic cylinder is mounted on the outside of the fixed mounting plate, and a horizontal hydraulic rod is mounted inside the horizontal hydraulic cylinder. A horizontal sliding rod is connected to the outside of the fixed mounting plate, and a fixed mold plate is connected to the outside of the horizontal sliding rod. A movable mold plate is mounted on the outside of the horizontal sliding rod, and a sand core mold is mounted on the outside of both the fixed mold plate and the movable mold plate.

[0020] The movable end of the horizontal hydraulic rod passes through the fixed mounting plate and is connected to the movable mold plate. The movable mold plate is slidably mounted between the fixed mounting plate and the fixed mold plate via a horizontal sliding rod. The horizontal hydraulic rod can drive the movable mold plate and the sand core mold on the movable mold plate to move along the outside of the horizontal sliding rod.

[0021] Preferably, the sand core mold includes an outer mold shell, and both the movable mold plate and the fixed mold plate are equipped with an outer mold shell. A mold connecting ring is installed on the top of the outer mold shell, and a demolding limiting plate is installed inside the outer mold shell. A limiting plate connecting rod is connected to the outside of the demolding limiting plate, and a limiting rod connecting ring is slidably installed on the outside of the limiting plate connecting rod. A limiting rod spring is connected to the outside of the limiting rod connecting ring. A sand core extrusion plate is installed inside the outer mold shell, and an extrusion plate connecting rod is connected to the top of the sand core extrusion plate. An extrusion plate spring is installed on the outside of the extrusion plate connecting rod.

[0022] The limiting rod connecting ring is fixedly installed inside the outer mold shell. The outside of the limiting rod connecting ring is connected to the limiting plate connecting rod through the limiting rod spring. The extrusion plate connecting rod at the top of the sand core extrusion plate passes through the top of the outer mold shell. The outside of the extrusion plate connecting rod is connected to the top of the outer mold shell through the extrusion plate spring.

[0023] Preferably, when the movable mold plate moves toward the fixed mold plate, it can drive the sand core mold on the movable mold plate to close with the sand core mold on the fixed mold plate. When the two sand core molds are closed, the two limiting plate connecting rods contact each other, causing the demolding limiting plate to move to both sides. After the mold connecting ring and the sand core extrusion plate are combined, they can connect with the bottom of the sand injection port. The sand injection port can inject sand into the interior of the demolding limiting plate through the sand core extrusion plate. When the sand injection port moves downward, it can drive the sand core extrusion plate to move downward.

[0024] A method for manufacturing sand cores, using the aforementioned core shooter.

[0025] Compared with the prior art, the present invention provides a core shooter and a method for manufacturing sand cores, which has the following beneficial effects:

[0026] 1. In operation, this type of core shooting machine uses a horizontal hydraulic rod to move the movable mold plate towards the fixed mold plate. When the movable mold plate moves towards the fixed mold plate, it can cause the sand core mold on the movable mold plate to close with the sand core mold on the fixed mold plate. When the two sand core molds are closed, the two limiting plate connecting rods contact each other, causing the demolding limiting plate to move to both sides. After the mold connecting ring and the sand core extrusion plate are combined, they can connect with the bottom of the sand injection port. The sand injection port can inject sand into the interior of the demolding limiting plate through the sand core extrusion plate. After the sand injection is completed, the sand injection port continues to move downward and drives the sand core extrusion plate to move downward. When the sand core extrusion plate moves downward, it can squeeze the core sand inside the air tank, causing excess air inside the core sand to be discharged, preventing defects in the formed sand core.

[0027] 2. In this type of core shooting machine, after the sand injection port is connected to the sand core forming mechanism, the sand injection sleeve performs sand injection operations on the inside of the sand core forming mechanism through the sand injection connection port and the sand injection port. The sealing piston can also drive the sand injection sleeve to continue to move downward and squeeze the inside of the sand core forming mechanism through the sand injection port. Multiple holes are opened inside the sand injection port to perform sand injection operations on the inside of the sand core forming mechanism, which can make the core sand distribution inside the sand core forming mechanism more uniform and prevent uneven distribution of the texture of the formed sand core.

[0028] 3. In this type of core shooting machine, after the sand shooting mechanism and the sand core forming mechanism are separated, the horizontal hydraulic rod drives the movable mold plate to move away from the fixed mold plate. When the movable mold plate moves away from the fixed mold plate, it can drive the sand core mold on the movable mold plate to separate from the sand core mold on the fixed mold plate. After the two sand core molds are separated, the limit rod spring contracts and drives the demolding limit plate to move towards the center. When the demolding limit plate moves towards the center, it can actively demold the sand core formed inside the outer mold shell. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a core shooting machine according to the present invention. Figure 1 ;

[0030] Figure 2 This is a three-dimensional structural diagram of a core shooting machine according to the present invention. Figure 2 ;

[0031] Figure 3 This is a three-dimensional structural diagram of a horizontal moving slide rail for a core shooting machine according to the present invention;

[0032] Figure 4 This is a schematic diagram of the internal structure of a horizontal moving slide rail for a core shooting machine according to the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the material storage mechanism of a core shooter according to the present invention;

[0034] Figure 6 This is a three-dimensional structural schematic diagram of the sand-shooting mechanism of a core-shooting machine according to the present invention;

[0035] Figure 7 This is a schematic diagram of the internal structure of the sand-shooting mechanism of a core-shooting machine according to the present invention;

[0036] Figure 8 This is a schematic diagram of the internal structure of the sand-shooting connection port of a core shooter according to the present invention;

[0037] Figure 9 This is a three-dimensional structural schematic diagram of the core forming mechanism of a core shooter according to the present invention;

[0038] Figure 10This is a three-dimensional structural schematic diagram of a core mold for a core shooter according to the present invention;

[0039] Figure 11 This is a schematic diagram of the internal structure of a core mold for a core shooter according to the present invention;

[0040] Figure 12 This is an exploded structural diagram of the sand core mold of a core shooter according to the present invention.

[0041] In the diagram: 1. Device mounting frame; 2. Horizontal sliding rail; 3. Air tank; 4. Material storage mechanism; 41. Hopper mounting plate; 42. Core sand storage silo; 43. Core sand conveying pipe; 44. Fixed connecting plate; 45. Elastic connecting rod; 46. Movable connecting plate; 5. Sand shooting mechanism; 51. Lifting hydraulic cylinder; 52. Lifting hydraulic rod; 53. Sealing piston; 54. Horizontal moving frame; 55. Moving roller; 56. Lifting moving plate; 57. Lifting elastic rod; 58. Sand shooting sleeve; 59. Sand shooting connection port; 510. Sand shooting port; 5 11. Electric telescopic rod; 6. Mold mounting frame; 7. Sand core forming mechanism; 71. Fixed mounting plate; 72. Horizontal hydraulic cylinder; 73. Horizontal hydraulic rod; 74. Horizontal sliding rod; 75. Fixed mold plate; 76. Movable mold plate; 77. Sand core mold; 771. Outer mold shell; 772. Mold connecting ring; 773. Demolding limit plate; 774. Limit plate connecting rod; 775. Limit rod connecting ring; 776. Limit rod spring; 777. Sand core extrusion plate; 778. Extrusion plate connecting rod; 779. Extrusion plate spring. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a core shooter and a method for manufacturing sand cores.

[0044] Example 1:

[0045] Please see Figure 1 - Figure 12A core shooting machine includes a device mounting frame 1, a horizontal moving slide rail 2 mounted on the top of the device mounting frame 1, an air storage tank 3 mounted on the outside of the horizontal moving slide rail 2, a material storage mechanism 4 mounted on the top of the horizontal moving slide rail 2, a sand shooting mechanism 5 mounted inside the horizontal moving slide rail 2, a mold mounting frame 6 mounted on the outside of the device mounting frame 1, and a sand core forming mechanism 7 mounted inside the mold mounting frame 6.

[0046] The sand-shooting mechanism 5 is slidably installed inside the horizontal moving slide rail 2. The inside of the sand-shooting mechanism 5 can be engaged with the bottom of the material storage mechanism 4, and the bottom of the sand-shooting mechanism 5 can be inserted into the top of the sand core forming mechanism 7.

[0047] The sand-shooting mechanism 5 can move horizontally along the interior of the horizontal sliding rail 2. When the sand-shooting mechanism 5 moves horizontally, it can connect with the bottom of the storage mechanism 4. The sand-shooting mechanism 5 can move up and down to connect with the top of the sand core forming mechanism 7. When the sand-shooting mechanism 5 is connected to the sand core forming mechanism 7, it can perform sand-shooting operation on the sand core. When the sand-shooting mechanism 5 is connected to the sand core forming mechanism 7, it can squeeze the sand core forming mechanism 7 to expel excess air from inside the sand core forming mechanism 7.

[0048] During operation, sufficient core sand is first added to the storage mechanism 4. Then, the sand-shooting mechanism 5 moves towards the storage mechanism 4. As the sand-shooting mechanism 5 moves towards the storage mechanism 4, it engages with the storage mechanism 4. When the sand-shooting mechanism 5 engages with the storage mechanism 4, the core sand inside the storage mechanism 4 can enter the sand-shooting mechanism 5. After the sand-shooting mechanism 5 is filled with core sand, it moves above the core-forming mechanism 7. At this time, the core-forming mechanism 7 is closed, and the sand-shooting mechanism 5 can move downward to connect with the core-forming mechanism 7. After the sand-shooting mechanism 5 connects with the core-forming mechanism 7, it can perform sand-shooting operations into the core-forming mechanism 7. After sand-shooting is completed, the sand-shooting mechanism 5 can also squeeze the inside of the core-forming mechanism 7. When the sand-shooting mechanism 5 squeezes the inside of the core-forming mechanism 7, excess air inside the core-forming mechanism 7 can be discharged, preventing defects in the formed core.

[0049] Example 2:

[0050] The difference from the above embodiments is that, please refer to [link / reference needed]. Figure 1 - Figure 12 The storage mechanism 4 includes a hopper mounting plate 41, which is mounted on the top of the horizontal moving slide rail 2. A core sand storage bin 42 is mounted on the top of the hopper mounting plate 41. A core sand conveying pipe 43 is connected to the bottom of the core sand storage bin 42. A fixed connecting plate 44 is connected to the bottom of the core sand conveying pipe 43. A spring connecting rod 45 is connected to the bottom of the fixed connecting plate 44. A movable connecting plate 46 is connected to the movable end of the spring connecting rod 45.

[0051] The movable connecting plate 46 is slidably installed on the bottom of the fixed connecting plate 44 via the elastic connecting rod 45, and the interior of the core sand storage chamber 42 is connected to the bottom of the fixed connecting plate 44 via the core sand conveying pipe 43.

[0052] When the sand-shooting mechanism 5 moves along the horizontal sliding rail 2 toward the storage mechanism 4, it can contact the movable connecting plate 46 and drive the movable connecting plate 46 to move toward the elastic connecting rod 45. When the movable connecting plate 46 moves toward the elastic connecting rod 45, the interior of the core sand storage bin 42 can communicate with the interior of the sand-shooting mechanism 5 through the core sand conveying pipe 43 passing through the holes on the fixed connecting plate 44 and the movable connecting plate 46.

[0053] When the sand-shooting mechanism 5 contacts the movable connecting plate 46 and causes the movable connecting plate 46 to move toward the elastic connecting rod 45, the elastic connecting rod 45 can be compressed. After the sand-shooting mechanism 5 separates from the movable connecting plate 46, the elastic connecting rod 45 rebounds and causes the movable connecting plate 46 to move away from the elastic connecting rod 45.

[0054] The sand-shooting mechanism 5 includes a lifting hydraulic cylinder 51 and a horizontal moving frame 54. The lifting hydraulic cylinder 51 is installed on the top of the horizontal moving slide rail 2. A lifting hydraulic rod 52 is installed inside the lifting hydraulic cylinder 51. A sealing piston 53 is connected to the bottom of the lifting hydraulic rod 52. A moving roller 55 is installed on the outside of the horizontal moving frame 54. A lifting moving plate 56 is installed inside the horizontal moving frame 54. A lifting elastic rod 57 is connected to the bottom of the lifting moving plate 56. A sand-shooting sleeve 58 is installed inside the lifting moving plate 56. A sand-shooting connection port 59 is connected to the bottom of the sand-shooting connection port 59. A sand-shooting port 510 is connected to the bottom of the sand-shooting connection port 59. An electric telescopic rod 511 is installed inside the horizontal moving slide rail 2.

[0055] The fixed end of the electric telescopic rod 511 is installed inside the horizontal moving slide rail 2, and the telescopic end of the electric telescopic rod 511 is connected to the outside of the horizontal moving frame 54.

[0056] The horizontal moving frame 54 is slidably installed at the bottom of the horizontal moving slide rail 2 via the moving roller 55. The bottom of the lifting moving plate 56 is connected to the inside of the horizontal moving frame 54 via the lifting elastic rod 57. The sand-shooting sleeve 58 is slidably installed inside the horizontal moving frame 54 via the lifting moving plate 56.

[0057] The electric telescopic rod 511 can drive the horizontal moving frame 54 to move horizontally along the horizontal moving slide rail 2 via the moving roller 55. When the horizontal moving frame 54 moves, it can drive the sand-shooting sleeve 58 and the sand-shooting nozzle 510 to move synchronously. When the sand-shooting sleeve 58 moves, it can communicate with the storage mechanism 4, and the core sand inside the storage mechanism 4 can enter the interior of the sand-shooting sleeve 58.

[0058] The interior of the sand-shooting sleeve 58 is connected to the sand-shooting port 510 through the sand-shooting connection port 59. The bottom of the sand-shooting port 510 can be connected to the interior of the sand core forming mechanism 7. The exterior of the sealing piston 53 fits into the interior of the sand-shooting sleeve 58.

[0059] When the lifting hydraulic cylinder 51 drives the lifting hydraulic rod 52 to move downward, it can squeeze the inside of the sand-shooting sleeve 58 through the sealing piston 53. When the sealing piston 53 squeezes the inside of the sand-shooting sleeve 58, it can drive the sand-shooting sleeve 58 to move downward. When the sand-shooting sleeve 58 moves downward, it can drive the sand-shooting port 510 to connect with the sand core forming mechanism 7. After the sand-shooting port 510 is connected to the sand core forming mechanism 7, the inside of the sand-shooting sleeve 58 performs sand-shooting operation on the inside of the sand core forming mechanism 7 through the sand-shooting connection port 59 and the sand-shooting port 510. The sealing piston 53 can also drive the sand-shooting sleeve 58 to continue to move downward and squeeze the inside of the sand core forming mechanism 7 through the sand-shooting port 510.

[0060] During operation, sufficient core sand is first added to the core sand storage bin 42. Then, the horizontal moving frame 54 is driven by the electric telescopic rod 511 to move along the gas storage tank 3 towards the storage mechanism 4 via the moving rollers 55. When the horizontal moving frame 54 moves, it can drive the sand-shooting sleeve 58 to move synchronously. When the sand-shooting sleeve 58 moves towards the storage mechanism 4, it can contact the movable connecting plate 46 and drive the movable connecting plate 46 to move synchronously. The movable connecting plate 46 moves towards the elastic connecting rod 45. The opening at the bottom of the core sand conveying pipe 43 can be opened, and when the opening at the bottom of the core sand conveying pipe 43 is opened, the core sand inside the core sand storage chamber 42 can enter the interior of the sand shooting sleeve 58 along the core sand conveying pipe 43. When the movable connecting plate 46 moves towards the elastic connecting rod 45, the elastic connecting rod 45 can be compressed. After the core sand inside the sand shooting sleeve 58 is filled, the electric telescopic rod 511 drives the horizontal moving frame 54 to move above the sand core forming mechanism 7. After the sand shooting mechanism 5 separates from the movable connecting plate 46, the elastic connecting rod... 45. The rebound causes the movable connecting plate 46 to move away from the elastic connecting rod 45, and then the lifting hydraulic cylinder 51 drives the lifting hydraulic rod 52 to move downward. When the lifting hydraulic rod 52 moves downward, it can squeeze the inside of the sand-shooting sleeve 58 through the sealing piston 53. When the sealing piston 53 squeezes the inside of the sand-shooting sleeve 58, it can drive the sand-shooting sleeve 58 to move downward. When the sand-shooting sleeve 58 moves downward, it can drive the sand-shooting port 510 to connect with the sand core forming mechanism 7. After the core forming mechanism 7 is connected, the sand-shooting sleeve 58 performs sand-shooting operations on the inside of the sand core forming mechanism 7 through the sand-shooting connection port 59 and the sand-shooting port 510. The sealing piston 53 can also drive the sand-shooting sleeve 58 to continue to move downwards and squeeze the inside of the sand core forming mechanism 7 through the sand-shooting port 510. Multiple holes are opened inside the sand-shooting port 510 to perform sand-shooting operations on the inside of the sand core forming mechanism 7, which can make the core sand distribution inside the sand core forming mechanism 7 more uniform and prevent the uneven distribution of the texture of the formed sand core.

[0061] Example 3:

[0062] The difference from the above embodiments is that, please refer to [link / reference needed]. Figure 1 - Figure 12 The sand core forming mechanism 7 includes a fixed mounting plate 71, which is fixedly mounted on the top of the mold mounting frame 6. A horizontal hydraulic cylinder 72 is mounted on the outside of the fixed mounting plate 71. A horizontal hydraulic rod 73 is mounted inside the horizontal hydraulic cylinder 72. A horizontal sliding rod 74 is connected to the outside of the fixed mounting plate 71. A fixed mold plate 75 is connected to the outside of the horizontal sliding rod 74. A movable mold plate 76 is mounted on the outside of the horizontal sliding rod 74. A sand core mold 77 is mounted on the outside of both the fixed mold plate 75 and the movable mold plate 76.

[0063] The movable end of the horizontal hydraulic rod 73 passes through the fixed mounting plate 71 and is connected to the movable mold plate 76. The movable mold plate 76 is slidably mounted between the fixed mounting plate 71 and the fixed mold plate 75 via the horizontal sliding rod 74. The horizontal hydraulic rod 73 can drive the movable mold plate 76 and the sand core mold 77 on the movable mold plate 76 to move along the outside of the horizontal sliding rod 74.

[0064] The sand core mold 77 includes an outer mold shell 771. The outer mold shell 771 is installed on the outside of the movable mold plate 76 and the fixed mold plate 75. A mold connecting ring 772 is installed on the top of the outer mold shell 771. A demolding limiting plate 773 is installed inside the outer mold shell 771. A limiting plate connecting rod 774 is connected to the outside of the demolding limiting plate 773. A limiting rod connecting ring 775 is slidably installed on the outside of the limiting plate connecting rod 774. A limiting rod spring 776 is connected to the outside of the limiting rod connecting ring 775. A sand core extrusion plate 777 is installed inside the outer mold shell 771. An extrusion plate connecting rod 778 is connected to the top of the sand core extrusion plate 777. An extrusion plate spring 779 is installed on the outside of the extrusion plate connecting rod 778.

[0065] The limiting rod connecting ring 775 is fixedly installed inside the outer mold shell 771. The outside of the limiting rod connecting ring 775 is connected to the limiting plate connecting rod 774 through the limiting rod spring 776. The extrusion plate connecting rod 778 at the top of the sand core extrusion plate 777 passes through the top of the outer mold shell 771. The outside of the extrusion plate connecting rod 778 is connected to the top of the outer mold shell 771 through the extrusion plate spring 779.

[0066] When the movable mold plate 76 moves toward the fixed mold plate 75, it can cause the sand core mold 77 on the movable mold plate 76 to close with the sand core mold 77 on the fixed mold plate 75. When the two sand core molds 77 are closed, the two limiting plate connecting rods 774 contact each other, causing the demolding limiting plate 773 to move to both sides. After the mold connecting ring 772 and the sand core extrusion plate 777 are combined, they can connect with the bottom of the sand injection port 510. The sand injection port 510 can inject sand into the interior of the demolding limiting plate 773 through the sand core extrusion plate 777. When the sand injection port 510 moves downward, it can cause the sand core extrusion plate 777 to move downward.

[0067] During operation, the horizontal hydraulic cylinder 72 can drive the movable mold plate 76 to move towards the fixed mold plate 75 via the horizontal hydraulic rod 73. When the movable mold plate 76 moves towards the fixed mold plate 75, it can drive the sand core mold 77 on the movable mold plate 76 to close with the sand core mold 77 on the fixed mold plate 75. When the two sand core molds 77 are closed, the two limiting plate connecting rods 774 contact each other, causing the demolding limiting plate 773 to move to both sides. When the demolding limiting plate 773 moves to both sides, it can extend the limiting rod spring 776. After the mold connecting ring 772 and the sand core extrusion plate 777 are combined, they can connect to the bottom of the sand injection port 510. The sand injection port 510 can inject sand into the interior of the demolding limiting plate 773 through the sand core extrusion plate 777. After the sand injection is completed, when the sand injection port 510 continues to move downward, it drives the sand core extrusion plate 77 to move downward. 7 moves downwards. When the sand core extrusion plate 777 moves downwards, it can extrude the core sand inside the air storage tank 3, causing excess air inside the core sand to be discharged. After the air in the core sand inside the demolding limiting plate 773 is discharged, the sand shooting mechanism 5 moves upwards and separates from the sand core forming mechanism 7. After the sand shooting mechanism 5 separates from the sand core forming mechanism 7, the horizontal hydraulic rod 73 drives the movable mold plate 76 to move away from the fixed mold plate 75. When the movable mold plate 76 moves away from the fixed mold plate 75, it can drive the sand core mold 77 on the movable mold plate 76 to separate from the sand core mold 77 on the fixed mold plate 75. After the two sand core molds 77 separate, the limiting rod spring 776 contracts and drives the demolding limiting plate 773 to move towards the center. When the demolding limiting plate 773 moves towards the center, it can actively demold the sand core formed inside the outer mold shell 771.

[0068] Example 4:

[0069] A positioning method for machining a brake assembly, using a core shooting machine as described in Examples 1 to 3, includes the following steps:

[0070] When working, first add sufficient core sand into the storage mechanism 4;

[0071] Then the sand-shooting mechanism 5 moves toward the storage mechanism 4, and the core sand inside the storage mechanism 4 can enter the interior of the sand-shooting mechanism 5.

[0072] The sand-shooting mechanism 5 moves above the sand core forming mechanism 7. The sand-shooting mechanism 5 can move downward to connect with the sand core forming mechanism 7. The sand-shooting mechanism 5 can perform sand-shooting operations into the sand core forming mechanism 7.

[0073] After the sand shooting is completed, the sand shooting mechanism 5 can also squeeze the inside of the sand core forming mechanism 7. When the sand shooting mechanism 5 squeezes the inside of the sand core forming mechanism 7, the excess air inside the sand core forming mechanism 7 can be discharged.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core shooting machine, comprising a device mounting frame, characterized in that: A horizontal moving slide rail is installed on the top of the device mounting frame. An air storage tank is installed on the outside of the horizontal moving slide rail. A material storage mechanism is installed on the top of the horizontal moving slide rail. A sand shooting mechanism is installed inside the horizontal moving slide rail. A mold mounting frame is installed on the outside of the device mounting frame. A sand core forming mechanism is installed inside the mold mounting frame. The sand-shooting mechanism is slidably installed inside the horizontal moving slide rail. The inside of the sand-shooting mechanism can be engaged with the bottom of the material storage mechanism, and the bottom of the sand-shooting mechanism can be inserted into the top of the sand core forming mechanism. The sand-shooting mechanism can move horizontally along the interior of the horizontal sliding rail. When the sand-shooting mechanism moves horizontally, it can communicate with the bottom of the storage mechanism. The sand-shooting mechanism can move up and down to communicate with the top of the sand core forming mechanism. When the sand-shooting mechanism is connected to the sand core forming mechanism, it can perform sand-shooting operations on the sand core. When the sand-shooting mechanism is connected to the sand core forming mechanism, it can squeeze the sand core forming mechanism to expel excess air from inside the sand core forming mechanism.

2. A core shooter according to claim 1, characterized in that: The storage mechanism includes a hopper mounting plate, which is mounted on top of a horizontal moving slide rail. A core sand storage hopper is mounted on top of the hopper mounting plate. A core sand conveying pipe is connected to the bottom of the core sand storage hopper. A fixed connecting plate is connected to the bottom of the core sand conveying pipe. A spring connecting rod is connected to the bottom of the fixed connecting plate. A movable connecting plate is connected to the movable end of the spring connecting rod. The movable connecting plate is slidably installed at the bottom of the fixed connecting plate via a spring connecting rod, and the interior of the core sand storage chamber is connected to the bottom of the fixed connecting plate via a core sand conveying pipe.

3. A core shooting machine according to claim 2, characterized in that: When the sand-shooting mechanism moves along the horizontal sliding rail toward the storage mechanism, it can contact the movable connecting plate and drive the movable connecting plate to move toward the elastic connecting rod. When the movable connecting plate moves toward the elastic connecting rod, the interior of the core sand storage bin can communicate with the interior of the sand-shooting mechanism through the core sand conveying pipe passing through the holes on the fixed connecting plate and the movable connecting plate. When the sand-shooting mechanism contacts the movable connecting plate and causes the movable connecting plate to move toward the elastic connecting rod, the elastic connecting rod can be compressed. After the sand-shooting mechanism separates from the movable connecting plate, the elastic connecting rod rebounds and causes the movable connecting plate to move away from the elastic connecting rod.

4. A core shooter according to claim 3, characterized in that: The sand-shooting mechanism includes a lifting hydraulic cylinder and a horizontal moving frame. The lifting hydraulic cylinder is installed on the top of the horizontal moving slide rail. A lifting hydraulic rod is installed inside the lifting hydraulic cylinder. A sealing piston is connected to the bottom of the lifting hydraulic rod. Moving rollers are installed on the outside of the horizontal moving frame. A lifting moving plate is installed inside the horizontal moving frame. A lifting elastic rod is connected to the bottom of the lifting moving plate. A sand-shooting sleeve is installed inside the lifting moving plate. A sand-shooting connection port is connected to the bottom of the sand-shooting connection port. A sand-shooting nozzle is connected to the bottom of the sand-shooting connection port. An electric telescopic rod is installed inside the horizontal moving slide rail. The fixed end of the electric telescopic rod is installed inside the horizontal moving slide rail, and the telescopic end of the electric telescopic rod is connected to the outside of the horizontal moving frame.

5. A core shooter according to claim 4, characterized in that: The horizontal moving frame is slidably installed at the bottom of the horizontal moving slide rail via moving rollers, the bottom of the lifting moving plate is connected to the inside of the horizontal moving frame via a lifting elastic rod, and the sand-shooting sleeve is slidably installed inside the horizontal moving frame via the lifting moving plate; The electric telescopic rod can drive the horizontal moving frame to move horizontally along the horizontal moving slide rail via the moving rollers. When the horizontal moving frame moves, it can drive the sand-shooting sleeve and the sand-shooting nozzle to move synchronously. When the sand-shooting sleeve moves, it can communicate with the storage mechanism, and the core sand inside the storage mechanism can enter the interior of the sand-shooting sleeve.

6. A core shooter according to claim 5, characterized in that: The interior of the sand-shooting sleeve is connected to the sand-shooting port through the sand-shooting connection port. The bottom of the sand-shooting port can be connected to the interior of the sand core forming mechanism. The exterior of the sealing piston fits into the interior of the sand-shooting sleeve. When the lifting hydraulic cylinder drives the lifting hydraulic rod to move downward, it can squeeze the inside of the sand-shooting sleeve through the sealing piston. When the sealing piston squeezes the inside of the sand-shooting sleeve, it can drive the sand-shooting sleeve to move downward. When the sand-shooting sleeve moves downward, it can drive the sand-shooting port to connect with the sand core forming mechanism. After the sand-shooting port is connected to the sand core forming mechanism, the inside of the sand-shooting sleeve performs sand-shooting operation on the inside of the sand core forming mechanism through the sand-shooting connection port and the sand-shooting port. The sealing piston can also drive the sand-shooting sleeve to continue to move downward and squeeze the inside of the sand core forming mechanism through the sand-shooting port.

7. A core shooting machine according to claim 6, characterized in that: The sand core forming mechanism includes a fixed mounting plate, which is fixedly mounted on the top of the mold mounting frame. A horizontal hydraulic cylinder is mounted on the outside of the fixed mounting plate, and a horizontal hydraulic rod is mounted inside the horizontal hydraulic cylinder. A horizontal sliding rod is connected to the outside of the fixed mounting plate, and a fixed mold plate is connected to the outside of the horizontal sliding rod. A movable mold plate is mounted on the outside of the horizontal sliding rod. A sand core mold is mounted on the outside of both the fixed mold plate and the movable mold plate. The movable end of the horizontal hydraulic rod passes through the fixed mounting plate and is connected to the movable mold plate. The movable mold plate is slidably mounted between the fixed mounting plate and the fixed mold plate via a horizontal sliding rod. The horizontal hydraulic rod can drive the movable mold plate and the sand core mold on the movable mold plate to move along the outside of the horizontal sliding rod.

8. A core shooter according to claim 7, characterized in that: The sand core mold includes an outer mold shell. Both the movable mold plate and the fixed mold plate are fitted with outer mold shells. A mold connecting ring is installed on the top of the outer mold shell. A demolding limiting plate is installed inside the outer mold shell. A limiting plate connecting rod is connected to the outside of the demolding limiting plate. A limiting rod connecting ring is slidably installed on the outside of the limiting plate connecting rod. A limiting rod spring is connected to the outside of the limiting rod connecting ring. A sand core extrusion plate is installed inside the outer mold shell. An extrusion plate connecting rod is connected to the top of the sand core extrusion plate. An extrusion plate spring is installed on the outside of the extrusion plate connecting rod. The limiting rod connecting ring is fixedly installed inside the outer mold shell. The outside of the limiting rod connecting ring is connected to the limiting plate connecting rod through the limiting rod spring. The extrusion plate connecting rod at the top of the sand core extrusion plate passes through the top of the outer mold shell. The outside of the extrusion plate connecting rod is connected to the top of the outer mold shell through the extrusion plate spring.

9. A core shooter according to claim 8, characterized in that: When the movable mold plate moves toward the fixed mold plate, it can cause the sand core mold on the movable mold plate to close with the sand core mold on the fixed mold plate. When the two sand core molds are closed, the two limiting plate connecting rods contact each other, causing the demolding limiting plate to move to both sides. After the mold connecting ring and the sand core extrusion plate are combined, they can connect with the bottom of the sand injection port. The sand injection port can inject sand into the interior of the demolding limiting plate through the sand core extrusion plate. When the sand injection port moves downward, it can cause the sand core extrusion plate to move downward.

10. A method for manufacturing sand cores, characterized in that, Using a core shooting machine as described in any one of claims 1-9, the method includes the following steps; When working, first add sufficient core sand into the storage mechanism; Then the sand-shooting mechanism moves toward the storage mechanism, allowing the core sand inside the storage mechanism to enter the interior of the sand-shooting mechanism; The sand-shooting mechanism moves above the sand core forming mechanism, and can move downward to connect with the sand core forming mechanism. The sand-shooting mechanism can then perform sand-shooting operations into the interior of the sand core forming mechanism. After sand injection is completed, the sand injection mechanism can also squeeze the inside of the sand core forming mechanism. When the sand injection mechanism squeezes the inside of the sand core forming mechanism, it can expel excess air from the inside of the sand core forming mechanism.

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