Casting ladle for filling molten aluminum through negative pressure

Abstract

The casting ladle comprises a casting ladle body and a cover body used for opening and closing a filling port of the casting ladle body, one end of the cover body is hinged to the casting ladle body, and the casting ladle body is provided with a cover body assisting buffering device. The cover body boosting buffer device comprises a boosting buffer spring used for boosting when the cover body is opened and buffering when the cover body is closed, one end of the boosting buffer spring acts on the casting ladle body, and the other end of the boosting buffer spring acts on the cover body. According to the utility model, the boosting buffer spring is used for boosting when the cover body is opened and buffering when the cover body is closed, so that on one hand, the weight of the opened cover body is reduced, and the cover opening difficulty and the working intensity are reduced; and on the other hand, when the cover body is closed, due to the fact that the buffer spring has upward lifting force, the cover body is prevented from impacting the filling opening of the casting ladle body with large force, the upper end face of the filling opening is prevented from being collided and damaged, and then the problem that negative pressure filling of molten aluminum is formed in the later period is influenced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a ladle for filling aluminum liquid through negative pressure. Background Art

[0002] Currently, before forming automotive aluminum alloy wheels, aluminum ingots are melted in a stationary furnace, dispersed, and transferred to a ladle. The molten aluminum is then poured into the wheel mold using the ladle. This process typically involves negative pressure filling. This involves sealing the ladle's filling port (including the ladle's pouring port) with a molten aluminum transfer device, then evacuating the ladle's filling chamber. Under atmospheric pressure, molten aluminum is transferred from the stationary furnace into the filling chamber, achieving the desired transfer.

[0003] However, the upper end surface of the filling port of the ladle is easily bumped and worn during the frequent opening and closing of the ladle cover, which leads to a deterioration of the sealing effect, and the entire ladle needs to be replaced, which is relatively costly. In addition, there are also problems such as the heavy weight of the cover, which makes opening and closing difficult, and the pouring port of the ladle easily overflows with molten aluminum during transfer. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a ladle for filling molten aluminum through negative pressure.

[0005] In order to solve the above technical problems, the utility model discloses a ladle for filling aluminum liquid by negative pressure, comprising a ladle body and a cover body for opening and closing the filling port of the ladle body, one end of the cover body is hinged to the ladle body, and the ladle body is provided with a cover body power-assisting buffer device, the cover body power-assisting buffer device comprises a power-assisting buffer spring for assisting when the cover body is opened and buffering when the cover body is closed, one end of the power-assisting buffer spring acts on the ladle body, and the other end acts on the cover body.

[0006] In this embodiment, the booster buffer spring also includes a hinged rod, a connecting rod, a sliding rod and a sliding seat. One end of the hinged rod is hinged to the ladle body, and the other end is hinged to the connecting rod. The other end of the connecting rod is hinged to the sliding rod. The sliding seat is installed on the cover body, and the sliding rod cooperates with the sliding hole of the sliding seat. One end of the booster buffer spring rests on the sliding seat, and the other end is set to a limit position.

[0007] In this embodiment, the sliding rod is arranged so that when the cover is closed, the sliding rod is parallel to the lower end surface of the cover.

[0008] In this embodiment, a cover locking hook is installed at the other end of the cover, and a cover locking pliers which can cooperate with the cover locking hook is provided on the ladle body.

[0009] In this embodiment, a ladle flange is detachably sealed and installed on the top of the ladle body, the upper end surface of the ladle flange cooperates with the lower end surface of the cover body, and the ladle flange is provided with the filling port.

[0010] In this embodiment, a sealing component is provided between the ladle flange and the ladle body, and the ladle flange and the ladle body are connected by a plurality of bolts.

[0011] In this embodiment, the pouring port of the ladle body is located higher than the highest liquid level in the ladle body.

[0012] In this embodiment, the pouring spout is equipped with a sealing cover for sealing the pouring spout of the ladle body.

[0013] In this embodiment, a mounting frame is further included, the sealing cover is hinged to the mounting frame, one end of the mounting frame is hinged to one side of the pouring outlet, and the other end is provided with a sealing cover locking hook, and the other side of the pouring outlet is provided with a sealing cover locking pliers that can cooperate with the sealing cover locking hook.

[0014] In this embodiment, forklift insertion holes for forklifts to be inserted for transfer are provided on both sides of the ladle body.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The utility model adopts the assist buffer spring for assisting when the cover is opened and buffering when the cover is closed, thereby, on the one hand, reducing the weight of opening the cover, reducing the difficulty and work intensity of opening the cover; on the other hand, when closing the cover, the buffer spring has an upward lifting force, thereby preventing the cover from impacting the filling port of the opening and closing ladle body with a large force, avoiding collision and damage to the upper end face of the filling port, which in turn brings about the problem of affecting the formation of negative pressure for filling aluminum liquid in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is an axonometric diagram of a ladle for filling molten aluminum by negative pressure according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the main view of a ladle for filling molten aluminum by negative pressure according to an embodiment of the present utility model;

[0020] Figure 3This is a cross-sectional schematic diagram of a ladle for filling molten aluminum by negative pressure disclosed in an embodiment of the present utility model.

[0021] Legend:

[0022] 1. Ladle body; 11. Filling port; 12. Cover locking pliers; 13. Ladle flange; 14. Sealing components; 15. Bolts; 16. Pour port; 17. Sealing cover locking pliers; 18. Mounting bracket; 19. Sealing cover locking hook;

[0023] 2. Cover body; 21. Cover body lock hook;

[0024] 3. Cover body power-assistance buffer device; 31. Power-assistance buffer spring; 32. Articulated rod; 33. Connecting rod; 34. Sliding rod; 35. Sliding seat;

[0025] 4. Sealing cover;

[0026] 5. Forklift socket. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0028] like Figure 1-3 As shown, the utility model discloses a ladle for filling molten aluminum by negative pressure, comprising a ladle body 1 and a cover body 2 for opening and closing a filling port 11 of the ladle body 1. An aluminum liquid filling cavity is provided in the ladle body 1. When filling with aluminum liquid, the cover body 2 is in an open state, and when pouring out aluminum liquid from the pouring port 16, the cover body 2 is in a closed state. One end of the cover body 2 is hinged to the ladle body 1, and the ladle body 1 is provided with a cover body power-assisting buffer device 3. The cover body power-assisting buffer device 3 comprises a power-assisting buffer spring 31 for assisting when the cover body 2 is opened and buffering when the cover body 2 is closed. One end of the power-assisting buffer spring 31 acts on the ladle body 1, and the other end acts on the cover body 2. The present invention adopts the assist buffer spring 31 for assisting when the cover body 2 is opened and for providing buffer when the cover body 2 is closed. Thus, on the one hand, the weight of opening the cover body 2 is reduced, and the difficulty and work intensity of opening the cover are reduced. On the other hand, when closing the cover body 2, the assist buffer spring 31 has an upward lifting force, thereby preventing the cover body 2 from impacting the filling port 11 of the opening and closing ladle body 1 with a large force, and avoiding the upper end surface of the filling port 11 from being damaged by collision, which in turn brings about the problem of affecting the formation of negative pressure for filling aluminum liquid in the later stage.

[0029] In this embodiment, the cover body power-assisting buffer device 3 also includes a hinged rod 32, a connecting rod 33, a sliding rod 34 and a sliding seat 35. One end of the hinged rod 32 is hinged to the ladle body 1, and the other end is hinged to the connecting rod 33. The other end of the connecting rod 33 is hinged to the sliding rod 34. The sliding seat 35 is installed on the cover body 2. The sliding rod 34 cooperates with the sliding hole of the sliding seat 35. One end of the power-assisting buffer spring 31 rests on the sliding seat 35, and the other end is limited. Specifically, the tension of the power-assisting buffer spring 31 is adjusted by rotating the bolt head, so that the cover body power-assisting buffer device 3 maintains an upward pulling force.

[0030] In this embodiment, the sliding rod 34 is configured so that when the lid 2 is closed, the sliding rod 34 is parallel to the lower end surface of the lid 2. At this time, the auxiliary buffer spring 31 only exerts a horizontal force and no upward pulling force, thereby ensuring that the weight of the lid 2 acts on the filling port 11, improving the sealing effect. Furthermore, to achieve a thorough sealing and locking of the lid 2, a lid locking hook 21 is installed at the other end of the lid 2. The ladle body 1 is equipped with a lid locking clamp 12 that can cooperate with the lid locking hook 21. The lid locking clamp 12 can be manually operated.

[0031] In this embodiment, the upper end surface of the oven to the filling port 11 is frequently mated with the cover 2. After a period of time, the mating surface is inevitably damaged or deformed, which makes it impossible to better form a negative pressure in the aluminum liquid filling chamber. The top of the ladle body 1 is detachably sealed and installed with a ladle flange 13, so that the ladle flange 13 can be replaced regularly. The upper end surface of the ladle flange 13 is mated with the lower end surface of the cover 2, and the ladle flange 13 is provided with the filling port 11. Specifically, a sealing component 14, such as a packing material, is provided between the ladle flange 13 and the ladle body 1 to improve the sealing effect, and the ladle flange 13 is connected to the ladle body 1 by a plurality of bolts 15, so that regular replacement can be achieved.

[0032] In this embodiment, in order to prevent the molten aluminum from overflowing from the molten aluminum pouring outlet 16 when the ladle is transferred, the pouring outlet 16 of the ladle body 1 is positioned higher than the highest liquid level in the ladle body 1 .

[0033] In this embodiment, to facilitate the formation of negative pressure within the molten aluminum filling chamber, a sealing cap 4 is installed at the pouring spout 16 of the ladle body 1 to seal the pouring spout 16. To ensure a secure seal between the sealing cap 4 and the pouring spout 16, a mounting bracket 18 is also included. The mounting bracket 18 is L-shaped, hingedly connected to the sealing cap 4, with the hinge axis perpendicular to the central axis of the pouring spout 16. One end of the mounting bracket 18 is hingedly connected to one side of the pouring spout 16, and the other end is equipped with a sealing cap locking hook 19. A sealing cap locking plier 17 is installed on the other side of the pouring spout 16 to engage with the sealing cap locking hook 19. This ensures pressure balance and increases service life. The pouring spout 16 of the ladle body 1 is elevated to prevent molten aluminum from adhering to the sealing cap 4 installed at the pouring spout 16. Forklift receptacles 5 are provided on both sides of the ladle body 1 for forklift access and transfer. These receptacles 5 are formed by welding square pipe fittings to the sides of the ladle body 1, enabling rapid transport of the ladle.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the scope of protection of the present invention.

Claims

1. A ladle for filling aluminum liquid by negative pressure, comprising a ladle body (1) and a cover body (2) for opening and closing a filling port (11) of the ladle body (1), wherein one end of the cover body (2) is hinged to the ladle body (1), and is characterized in that: The ladle body (1) is provided with a cover body power-assisting buffer device (3), and the cover body power-assisting buffer device (3) comprises a power-assisting buffer spring (31) for providing power when the cover body (2) is opened and for providing buffer when the cover body (2) is closed. One end of the power-assisting buffer spring (31) acts on the ladle body (1), and the other end acts on the cover body (2).

2. The ladle for filling molten aluminum by negative pressure according to claim 1, characterized in that: The cover body power-assisting buffer device (3) further comprises a hinged rod (32), a connecting rod (33), a sliding rod (34) and a sliding seat (35), one end of the hinged rod (32) is hinged to the ladle body (1), and the other end is hinged to the connecting rod (33), the other end of the connecting rod (33) is hinged to the sliding rod (34), the sliding seat (35) is mounted on the cover body (2), the sliding rod (34) is matched with the sliding hole of the sliding seat (35), one end of the power-assisting buffer spring (31) is against the sliding seat (35), and the other end is set to limit.

3. The ladle for filling molten aluminum by negative pressure according to claim 2, characterized in that: The sliding rod (34) is arranged so that when the cover body (2) is closed, the sliding rod (34) is parallel to the lower end surface of the cover body (2).

4. The ladle for filling molten aluminum by negative pressure according to claim 1, characterized in that: A cover body locking hook (21) is installed at the other end of the cover body (2), and a cover body locking clamp (12) that can cooperate with the cover body locking hook (21) is provided on the ladle body (1).

5. The ladle for filling molten aluminum by negative pressure according to claim 1, characterized in that: The top of the ladle body (1) is detachably sealed and mounted with a ladle flange (13), the upper end surface of the ladle flange (13) cooperates with the lower end surface of the cover body (2), and the ladle flange (13) is provided with the filling port (11).

6. The ladle for filling molten aluminum by negative pressure according to claim 5, characterized in that: A sealing component (14) is provided between the ladle flange (13) and the ladle body (1), and the ladle flange (13) and the ladle body (1) are connected via a plurality of bolts (15).

7. The ladle for filling molten aluminum by negative pressure according to claim 1, characterized in that: The pouring outlet (16) of the ladle body (1) is located higher than the highest liquid level in the ladle body (1).

8. The ladle for filling molten aluminum by negative pressure according to claim 7, characterized in that: The pouring outlet (16) is equipped with a sealing cover (4) for sealing the pouring outlet (16) of the ladle body (1).

9. The ladle for filling molten aluminum by negative pressure according to claim 8, characterized in that: The invention also includes a mounting frame (18), wherein the sealing cover (4) is hingedly connected to the mounting frame (18), one end of the mounting frame (18) is hingedly connected to one side of the pouring outlet (16), and the other end is provided with a sealing cover locking hook (19), and the other side of the pouring outlet (16) is provided with a sealing cover locking pliers (17) that can cooperate with the sealing cover locking hook (19).

10. The ladle for filling molten aluminum by negative pressure according to any one of claims 1 to 7, characterized in that: Forklift sockets (5) for inserting a forklift for transfer are provided on both sides of the ladle body (1).

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