Forming device for improving air holes of casting

Abstract

The utility model discloses a forming device for improving air holes of a casting, and relates to the technical field of casting. The casting device comprises a base, a casting assembly is arranged on the surface of the base, an impurity removal assembly used for removing gas and impurities in casting liquid is arranged on the right side of the casting assembly, and a separation assembly used for controlling the impurity removal assembly and the casting assembly to be separated is arranged at the bottom of the base. According to the utility model, the overflow structure is additionally arranged at the position where the exhaust of the casting is not smooth and the exhaust needle is ineffective, so that molten iron containing gas and slag and having poor quality at the position of the casting can be collected, meanwhile, molten iron with higher quality at other parts is supplemented to the position of the casting, and the defects of air holes and cold shut of the casting are effectively solved; and a traditional scheme of adding an exhaust needle to a complex casting is abandoned, the casting process layout is simplified, and the casting yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a molding device for improving the pores of castings. Background Art

[0002] In the traditional casting process, the gas inside the casting is not discharged smoothly, which easily leads to the generation of porosity defects. Especially for the position where the exhaust needle is designed to be ineffective, porosity defects are more likely to occur, affecting the quality of the casting. In order to solve the porosity defects of castings, traditional methods often require complex process measures such as adding exhaust needles. This not only increases the manufacturing cost of castings, but also increases the complexity of the production process and reduces the casting yield rate.

[0003] Therefore, a molding device for improving the porosity of castings is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the problems mentioned in the above background technology, and provide a molding device for improving the air holes of castings.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A molding device for improving the porosity of a casting comprises a base, a casting component is arranged on the surface of the base, a de-impurity component for removing gas and impurities in the casting liquid is arranged on the right side of the casting component, and a separation component for controlling the separation of the de-impurity component and the casting component is arranged at the bottom of the base.

[0007] Furthermore, the casting component comprises a casting port, the casting port is connected to a casting component below, the top surface of the base is provided with a molding cavity for accommodating the casting liquid, and the molding cavity is connected to the runner.

[0008] Furthermore, a card slot is provided on the top surface of the base, a connecting port is provided on the right side of the molding cavity, and the connecting port is connected to the card slot, an overflow block is connected inside the card slot, an overflow sheet is fixedly connected to the left side of the overflow block, and the overflow sheet is connected to the inner wall of the connecting port.

[0009] Furthermore, the separation component includes a mounting frame, and the mounting frame is fixedly connected to the bottom surface of the base, a screw rod is rotatably connected between the bottom surface of the inner wall of the mounting frame and the bottom surface of the base, a push block is threadedly connected to the surface of the screw rod, and the push block is movably connected to the inner wall of the slot, an alignment groove is provided on the bottom surface of the overflow block, and the inner wall of the alignment groove is adapted to the end of the push block, and the separation component also includes a manual control component for controlling the rotation of the screw rod.

[0010] Further, the manual control component includes a worm, and the worm is rotatably connected to the mounting frame. A crank is fixedly connected to the end of the worm, and a worm gear is fixedly sleeved on the surface of the lead screw, and the worm gear meshes with the worm.

[0011] Further, the thickness of the overflow piece is less than the thickness of the overflow block.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Through the casting component, molten iron can be introduced onto the surface of the base and finally cooled and formed into a casting. During the casting process, since the specific gravity of gas and slag is less than that of molten iron, they will float on the upper part of the molten iron. By setting up the impurity removal component, gas and slag can be collected. After casting is completed, by operating the separation component, the impurity removal component can be pushed upward, causing the impurity removal component to disengage from the casting component, thus facilitating the treatment of the collected waste slag, and then forming a complete casting body. The present utility model adds an overflow structure at the position where the casting has poor exhaust and the exhaust needle design is ineffective, which can collect the molten iron with gas and slag and poor quality at this position of the casting, and at the same time, the higher-quality molten iron in other parts is supplemented to this position of the casting, which is particularly effective in solving the problems of casting pores and cold shuts. And it abandons the traditional scheme of adding exhaust needles for complex castings, simplifies the process layout of the casting, and improves the finished product rate of the casting. Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the base of the present utility model;

[0016] Figure 3 is a bottom view of the structure of the impurity removal component of the present utility model;

[0017] Figure 4 is a structural schematic diagram of the separation component of the present utility model;

[0018] Reference numerals: 1, base; 2, casting component; 201, casting port; 202, runner; 203, molding cavity; 3, connection port; 4, impurity removal component; 401, clamping groove; 402, overflow block; 403, overflow piece; 5, separation component; 501, mounting frame; 502, lead screw; 503, push block; 504, alignment groove; 505, worm; 506, crank; 507, worm gear. Specific Embodiments

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model generally described and illustrated in the accompanying drawings here may be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0022] The electrical components appearing in this text are all electrically connected to an external main controller and 220V mains power, and the main controller can be a conventional known device such as a computer for control.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "above", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0024] As Figures 1 to 4 shown, a molding device for improving the porosity of castings includes a base 1. A casting assembly 2 is arranged on the surface of the base 1. A impurity removal assembly 4 for removing gas and impurities in the casting liquid is arranged on the right side of the casting assembly 2. A separation assembly 5 for controlling the separation of the impurity removal assembly 4 and the casting assembly 2 is arranged at the bottom of the base 1. More specifically, molten iron can be introduced onto the surface of the base 1 through the casting assembly 2 and finally cooled and formed into a casting. During the casting process, since the specific gravity of gas and slag is less than that of molten iron, they will float on the upper part of the molten iron. By setting the impurity removal assembly 4, gas and slag can be collected. After casting is completed, by operating the separation assembly 5, the impurity removal assembly 4 can be pushed upward, causing the impurity removal assembly 4 to separate from the casting assembly 2, thereby facilitating the treatment of the collected waste slag and then forming a complete casting.

[0025] The casting assembly 2 includes a casting port 201. A casting assembly 2 is communicatively provided below the casting port 201. A molding cavity 203 for accommodating casting liquid is provided on the top surface of the base 1, and the molding cavity 203 is communicatively connected to a runner 202. It should be noted that molten iron can be fed into the interior of the casting port 201. Under the action of gravity, the molten iron will flow along the interior of the runner 202 and finally enter the interior of the molding cavity 203. After the molten iron cools, a casting will be formed.

[0026] A clamping groove 401 is formed on the top surface of the base 1. A connection port 3 is formed on the right side of the molding cavity 203, and the connection port 3 is communicatively connected to the clamping groove 401. An overflow block 402 is clamped inside the clamping groove 401. An overflow piece 403 is fixedly connected to the left side surface of the overflow block 402, and the overflow piece 403 is clamped on the inner wall of the connection port 3. More specifically, since the specific gravity of gas and slag is less than that of molten iron, they will float on the upper part of the molten iron. Through the cooperation of the connection port 3 and the overflow piece 403, the molten iron with poor quality containing gas and slag at this position of the casting can be collected into the interior of the overflow block 402, thereby removing gas and impurities. At the same time, the higher-quality molten iron in other parts replenishes this position of the casting, avoiding the generation of pores at this position.

[0027] The separation assembly 5 includes a mounting frame 501, and the mounting frame 501 is fixedly connected to the bottom surface of the base 1. A lead screw 502 is rotatably connected between the bottom surface of the inner wall of the mounting frame 501 and the bottom surface of the base 1. A push block 503 is threadedly connected to the surface of the lead screw 502, and the push block 503 is movably inserted into the inner wall of the clamping groove 401. A positioning groove 504 is formed on the bottom surface of the overflow block 402, and the inner wall of the positioning groove 504 is adapted to the end of the push block 503. The separation assembly 5 further includes a manual control assembly for controlling the rotation of the lead screw 502. It should be noted that by driving the lead screw 502 to rotate through the manual control assembly, the push block 503 is driven to move under the action of the thread, so that the top end of the push block 503 is inserted into the inner wall of the positioning groove 504, thereby pushing the overflow block 402 and the overflow piece 403 to move, so that the overflow block 402 and the overflow piece 403 are respectively disengaged from the inner walls of the clamping groove 401 and the connection port 3, and the overflow piece 403 and the overflow block 402 can be disassembled, so that the two are separated from the surface of the casting.

[0028] The manual control assembly includes a worm 505, and the worm 505 is rotatably connected to the mounting frame 501. A crank 506 is fixedly connected to the end of the worm 505. A worm gear 507 is fixedly sleeved on the surface of the lead screw 502, and the worm gear 507 meshes with the worm 505. More specifically, by rotating the crank 506, the worm 505 is driven to rotate, and then the worm gear 507 meshing with the worm 505 is driven to rotate, thereby driving the lead screw 502 to rotate.

[0029] The thickness of the overflow sheet 403 is less than that of the overflow block 402. It should be noted that to ensure the tight connection between the overflow sheet 403 and the inner wall of the connection port 3, appropriate means can be used to connect the overflow sheet 403 to the inner wall of the connection port 3 according to the materials of the overflow sheet 403 and the casting assembly 2, such as welding. The overflow sheet 403 is set to a relatively thin thickness, making the connection between the overflow sheet 403 and the connection port 3 relatively weak. When the separation assembly 5 is used to push the overflow sheet 403 and the connection port 3 to separate, the casting body will not be damaged, improving the post-treatment efficiency.

[0030] In summary: Through the casting assembly 2, molten iron can be introduced onto the surface of the base 1 and finally cooled and formed into a casting. During the casting process, since the specific gravity of gas and slag is less than that of molten iron, they will float on the upper part of the molten iron. By setting up the impurity removal assembly 4, gas and slag can be collected. After casting is completed, by operating the separation assembly 5, the impurity removal assembly 4 can be pushed upward, causing the impurity removal assembly 4 to separate from the casting assembly 2, facilitating the treatment of the collected waste slag, and thus forming a complete casting body. By adding an overflow structure at the position where the casting has poor exhaust and the design of exhaust needles is ineffective, the present utility model can collect the molten iron with poor gas and slag content at this position of the casting, and at the same time, the higher-quality molten iron in other parts can be supplemented to this position of the casting, which is particularly effective in solving the defects of casting pores and cold shuts. Moreover, the traditional scheme of adding exhaust needles for complex castings is abandoned, simplifying the process layout of the casting and improving the finished product rate of the casting.

[0031] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A molding device for improving the porosity of castings, characterized in that It includes a base (1), on the surface of the base (1) there is a casting assembly (2), on the right side of the casting assembly (2) there is an impurity removal assembly (4) for removing gas and impurities in the casting liquid, and at the bottom of the base (1) there is a separation assembly (5) for controlling the separation of the impurity removal assembly (4) and the casting assembly (2).

2. The molding device for improving the air holes of the casting according to claim 1, characterized in that, The casting assembly (2) includes a casting port (201), below the casting port (201) there is a casting assembly (2) connected in communication, on the top surface of the base (1) there is a forming cavity (203) for accommodating the casting liquid, and the forming cavity (203) is connected in communication with the runner (202).

3. The molding device for improving the porosity of castings according to claim 2, characterized in that, On the top surface of the base (1) there is a card slot (401), on the right side of the forming cavity (203) there is a connection port (3), and the connection port (3) is connected in communication with the card slot (401). Inside the card slot (401) there is an overflow block (402) snap-fitted, on the left side surface of the overflow block (402) there is an overflow piece (403) fixedly connected, and the overflow piece (403) is snap-fitted on the inner wall of the connection port (3).

4. The molding device for improving the air holes of the casting according to claim 3, characterized in that, The separation assembly (5) includes a mounting frame (501), and the mounting frame (501) is fixedly connected to the bottom surface of the base (1). Between the bottom surface of the inner wall of the mounting frame (501) and the bottom surface of the base (1) there is a lead screw (502) rotatably connected. On the surface of the lead screw (502) there is a push block (503) threadedly connected, and the push block (503) is movably inserted into the inner wall of the card slot (401). On the bottom surface of the overflow block (402) there is a positioning groove (504), and the inner wall of the positioning groove (504) is adapted to the end of the push block (503). The separation assembly (5) also includes a manual control assembly for controlling the rotation of the lead screw (502).

5. The molding device for improving the gas pores of the casting according to claim 4, characterized in that, The manual control assembly includes a worm (505), and the worm (505) is rotatably connected to the mounting frame (501). At the end of the worm (505) there is a crank (506) fixedly connected. On the surface of the lead screw (502) there is a worm gear (507) fixedly sleeved, and the worm gear (507) is meshed with the worm (505).

6. The molding device for improving the gas holes of a casting according to claim 3, characterized in that The thickness of the overflow piece (403) is less than the thickness of the overflow block (402).

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