A device for preventing clogging of a runner of an automobile casting

Abstract

The utility model discloses an automobile casting runner anti -blocking device relates to automobile casting technical field. A kind of automobile casting runner anti -blocking device, including motor cover casting mould, the bottom bolt of motor cover casting mould is equipped with base, the top of motor cover casting mould is equipped with runner hole, and the inside of runner hole is communicated with the motor cover casting mould, runner anti -blocking structure, runner anti -blocking structure is located on motor cover casting mould, and runner anti -blocking structure includes two fixed plates, two electric telescopic rods, connecting plate and injection pipe, and it is synchronously lengthened by two symmetrical electric telescopic rods, and connecting plate is pushed to move down stably, so that injection pipe bottom end is accurately inserted into the inside of runner hole, avoid the accumulation of molten material caused by injection pipe and runner hole misplacement, under the meshing transmission of gear and tooth ring, when injection pipe rotates, bottom end injection material is evenly thrown under the action of centrifugal force, avoid the accumulation of molten material in the partial runner hole and form blockage, further reduce runner blockage risk, guarantee the quality inside casting.

Description

Technical Field

[0001] This utility model relates to the field of automotive casting technology, and in particular to an anti-clogging device for automotive casting runners. Background Technology

[0002] In the automotive manufacturing industry, castings are the basic structural form of many key components. Core components such as engine blocks, transmission housings, and wheel hubs are mostly produced through casting processes. The gating system, as a key channel connecting the pouring cup and the casting cavity during the casting process, directly determines whether the molten metal can fill the cavity smoothly and evenly, playing a decisive role in the quality of the casting.

[0003] If the existing gating system becomes blocked, it will obstruct the flow of molten metal. Insufficient pouring will result in parts of the casting not being filled with molten metal, causing defects. Cold shuts will form obvious lines or gaps on the surface of the casting, reducing the strength and sealing of the parts. The formation of pores will create voids inside the casting, affecting its mechanical properties and corrosion resistance. These defects will not only lead to the scrapping of castings and increase production costs, but may also affect the overall performance and safety of automobiles due to component quality problems. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an anti-blocking device for the gating system of automotive castings. This device can solve the problems that, once the gating system is blocked, the flow of molten metal will be obstructed, and insufficient pouring will result in parts of the casting not being filled with molten metal, causing part defects; cold shuts will form obvious lines or gaps on the surface of the casting, reducing the strength and sealing of the part; and the formation of pores will cause voids inside the casting, affecting its mechanical properties and corrosion resistance. These defects will not only lead to the scrapping of castings and increase production costs, but may also affect the overall performance and safety of the car due to the quality problems of the parts.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing blockage of the gating system in automotive castings, comprising: The motor cover casting mold has a base bolted to the bottom and a sprue hole on the top, which is connected to the interior of the motor cover casting mold. The anti-blocking structure for the sprue is located on the casting mold of the motor cover. The anti-clogging structure for the gating system includes two fixed plates, two electric telescopic rods, a connecting plate, and a pouring pipe. The two fixed plates are fixedly connected to both sides of the motor cover casting mold. The two electric telescopic rods are fixedly installed on the top of their respective fixed plates, and the telescopic ends of the two electric telescopic rods are fixedly connected to the bottom of the connecting plate. The pouring pipe is rotatably connected inside the connecting plate, and the bottom end of the pouring pipe extends into the interior of the gating hole. A sealing plate is fixedly sleeved on the outer surface of the pouring pipe, and the sealing plate is slidably connected to the interior of the gating hole. A limit groove is opened inside the connecting plate, and a limit ring is fixedly sleeved on the outer surface of the pouring pipe, and the limit ring is slidably connected to the interior of the limit groove.

[0006] Preferably, the anti-clogging structure of the gating system further includes a drive motor, a gear, and a gear ring. The drive motor is fixedly installed on the top of the connecting plate. The output end of the drive motor rotates through the connecting plate and is fixedly connected to the gear. The gear ring is fixedly sleeved on the outer surface of the injection pipe, and the gear and the gear ring are meshed together.

[0007] Preferably, a protective shell is fixedly connected to the bottom of the connecting plate, and the protective shell is located outside the gear and gear ring.

[0008] Preferably, the top of the motor cover casting mold is provided with a pressure relief hole, and a sealing screw is threaded into the inside of the pressure relief hole.

[0009] Preferably, a control panel is fixedly installed on one side of the motor cover casting mold.

[0010] Preferably, the bottom of the motor cover casting mold is provided with a sealing groove, and a sealing strip is fixedly connected to the top of the base, with the sealing strip slidingly connected to the inside of the sealing groove.

[0011] Preferably, the two electric telescopic rods are symmetrically arranged on both sides of the motor cover casting mold.

[0012] Preferably, a feed pipe is fixedly installed on the top of the connecting plate, and the feed pipe is in communication with the inside of the injection pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This anti-clogging device for automotive casting gating system uses two symmetrically arranged electric telescopic rods to extend synchronously, pushing the connecting plate to move smoothly downwards. This allows the bottom end of the injection tube to accurately extend into the gating hole, preventing molten material accumulation caused by misalignment between the injection tube and the gating hole. Under the meshing transmission of gears and gear rings, when the injection tube rotates, the bottom end of the injection tube is evenly thrown out under the action of centrifugal force, preventing molten material from accumulating locally in the gating hole and forming a blockage. This further reduces the risk of gating blockage and ensures the internal quality of the casting. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the base structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the motor cover casting mold of this utility model; Figure 4 This is a schematic cross-sectional view of the connecting plate of this utility model.

[0015] Reference numerals in the attached drawings: 1. Motor cover casting mold; 2. Base; 3. Connecting plate; 4. Electric telescopic rod; 5. Fixing plate; 6. Control panel; 7. Drive motor; 8. Protective shell; 9. Injection pipe; 10. Sealing screw; 11. Sprue hole; 12. Gear; 13. Gear ring; 14. Sealing plate; 15. Sealing strip; 16. Sealing groove; 17. Limiting ring; 18. Limiting groove; 19. Pressure relief hole. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Motor cover casting mold 1: As the core component for forming the motor cover casting, the bottom bolts are equipped with a base 2 and a sealing groove 16, the top is equipped with a sprue hole 11 and a pressure relief hole 19, a control panel 6 is fixedly installed on one side, and the two sides are connected to the fixing plate 5 of the sprue anti-blocking structure. Base 2: It is fixed to the bottom of the motor cover casting mold 1 by bolts, and a sealing strip 15 is fixedly connected to the top; its function is to provide bottom support for the motor cover casting mold 1, enhance the stability of the mold placement, and at the same time, the top sealing strip 15 cooperates with the mold sealing groove 16 to achieve bottom sealing of the mold. Connecting plate 3: The bottom is fixedly connected to the telescopic ends of the two electric telescopic rods 4, the internal rotatable connection is a filling pipe 9, a limit groove 18 is opened, the bottom is fixedly connected to a protective shell 8, and the top is fixedly installed with a feed pipe; Electric telescopic rods 4: There are two in total, symmetrically arranged on both sides of the motor cover casting mold 1, and both are fixedly installed on the top of the corresponding fixed plate 5. The telescopic end is fixedly connected to the connecting plate 3. Under the preset stroke control of the control panel 6, they extend or shorten synchronously, pushing the connecting plate 3 to move up and down, so as to realize the docking or separation of the injection pipe 9 and the sprue hole 11. Fixed plates 5: There are two in total, which are fixedly connected to both sides of the motor cover casting mold 1, and the electric telescopic rod 4 is fixedly installed on the top; their function is to provide stable installation support for the electric telescopic rod 4, ensure that the electric telescopic rod 4 will not deviate during operation, and ensure the smoothness of the lifting and lowering of the connecting plate 3; Control panel 6: Fixedly installed on one side of the motor cover casting mold 1; for operators to preset the stroke parameters of the electric telescopic rod 4 and the speed parameters of the drive motor 7, and simultaneously control the start and stop of the device to realize automated control of the entire anti-blocking process of the gating system; Drive motor 7: It is fixedly installed on the top of the connecting plate 3, and its output end rotates through the connecting plate 3 and is fixedly connected to the gear 12; it serves as the power source for the rotation of the injection tube 9. After starting, it drives the gear 12 to rotate and provides rotational power to the injection tube 9 through gear meshing transmission. Protective shell 8: It is fixedly connected to the bottom of the connecting plate 3 and located outside the gear 12 and the gear ring 13; its function is to seal and protect the meshing structure of the gear 12 and the gear ring 13 to prevent molten material from splashing or external impurities from entering and affecting the normal operation of the transmission components. Injection pipe 9: Rotatably connected inside the connecting plate 3, with the bottom end extending into the inlet hole 11, and the outer surface fixedly fitted with a sealing plate 14, a toothed ring 13 and a limiting ring 17, and the top connected to the feed pipe. Sealing screw 10: threaded connection inside pressure relief hole 19; normally seals pressure relief hole 19. When the pressure inside the sprue hole 11 is too high, excess pressure can be released by loosening the sealing screw 10 to prevent high pressure from causing molten material to splash or the sprue to crack. Gear 12: Fixedly connected to the output end of the drive motor 7 and meshing with the gear ring 13; its function is to transmit the rotational power of the drive motor 7 to the gear ring 13, so as to match the power direction and speed, and drive the injection tube 9 to rotate. Gear ring 13: It is fixedly sleeved on the outer surface of the injection tube 9 and meshes with the gear 12; its function is to receive the power transmitted by the gear 12 and drive the injection tube 9 to rotate synchronously in the connecting plate 3. Sealing plate 14: It is fixedly sleeved on the outer surface of the injection tube 9 and slidably connected to the inside of the sprue hole 11. When the injection tube 9 extends into the sprue hole 11, the sealing plate 14 slides against the inner wall of the sprue hole 11 to form a radial seal, preventing the molten material from overflowing from the gap between the injection tube and the sprue hole. Sealing strip 15: It is fixedly connected to the top of the base 2 and slidably connected to the inside of the sealing groove 16; it is embedded in the sealing groove 16 at the bottom of the motor cover casting mold 1 to fill the gap between the base 2 and the mold and ensure the sealing of the bottom of the mold. Sealing groove 16: It is formed at the bottom of the motor cover casting mold 1, and a sealing strip 15 is slidably connected inside it; it provides an installation groove for the sealing strip 15, and achieves the sealing between the base 2 and the bottom of the mold by cooperating with the sealing strip 15; Limiting ring 17: It is fixedly sleeved on the outer surface of the injection tube 9 and slidably connected to the inside of the limiting groove 18. When the injection tube 9 rotates, the limiting ring 17 slides along the limiting groove 18 to limit the axial displacement of the injection tube 9, ensure the stability of the injection tube 9 during rotation, and avoid deviation.

[0021] Example 1: like Figure 1-4 As shown, after the device is started, the two electric telescopic rods 4 extend synchronously, pushing the connecting plate 3 to move downward, so that the bottom end of the injection tube 9 rotatably connected inside the connecting plate 3 is precisely inserted into the gating hole 11; at this time, the sealing plate 14 on the outer surface of the injection tube 9 slides and fits against the inner wall of the gating hole 11 to form a radial seal and prevent the molten material from overflowing.

[0022] Start the drive motor 7. The output end of the drive motor 7 drives the gear 12 to rotate. Through the meshing transmission between the gear 12 and the gear ring 13, the injection tube 9 rotates in the connecting plate 3. The limiting ring 17 on the outer surface of the injection tube 9 slides along the limiting groove 18 of the connecting plate 3 to ensure rotational stability. During the rotation of the injection tube 9, the material at its bottom end is thrown out by centrifugal force to avoid local accumulation and blockage.

[0023] Example 2: like Figure 1As shown, the protective shell 8 is fixedly connected to the bottom of the connecting plate 3 and located outside the gear 12 and gear ring 13, completely enclosing them. During the pouring of molten metal, splashing molten metal droplets are blocked by the protective shell 8 and cannot directly contact the gear 12 and gear ring 13, thus avoiding the problem of molten metal adhering to the gear and gear ring after cooling, which could lead to poor transmission or even jamming.

[0024] Furthermore, when using this device, during installation, the base 2 is fixed to the bottom of the motor cover casting mold 1 by bolts, and the sealing strip 15 on the top of the base 2 is embedded in the sealing groove 16 at the bottom of the motor cover casting mold 1 to ensure the bottom of the mold is sealed; the operator presets the stroke of the electric telescopic rod 4 and the speed parameters of the drive motor 7 through the control panel 6.

[0025] After the device is started, the two electric telescopic rods 4 extend synchronously, pushing the connecting plate 3 to move downward, so that the bottom end of the injection tube 9 rotatably connected inside the connecting plate 3 is precisely inserted into the gating hole 11; at this time, the sealing plate 14 on the outer surface of the injection tube 9 slides and fits against the inner wall of the gating hole 11 to form a radial seal and prevent the molten material from overflowing.

[0026] Start the drive motor 7. The output end of the drive motor 7 drives the gear 12 to rotate. Through the meshing transmission between the gear 12 and the gear ring 13, the injection tube 9 rotates in the connecting plate 3. The limiting ring 17 on the outer surface of the injection tube 9 slides along the limiting groove 18 of the connecting plate 3 to ensure rotational stability. During the rotation of the injection tube 9, the material at its bottom end is thrown out by centrifugal force to avoid local accumulation and blockage.

[0027] The molten material enters the injection pipe 9 through the feed pipe at the top of the connecting plate 3, and is injected into the sprue hole 11 through the bottom end of the injection pipe 9. Excess pressure can be released by loosening the sealing screw 10 in the pressure relief hole 19 to prevent high pressure from causing molten material to splash or the sprue to crack.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for preventing blockage of the gating system in automotive castings, characterized in that, include: The motor cover casting mold (1) has a base (2) bolted on the bottom of the motor cover casting mold (1) and a sprue hole (11) opened on the top of the motor cover casting mold (1). The sprue hole (11) is connected to the interior of the motor cover casting mold (1). The anti-blocking structure for the gating system is located on the motor cover casting mold (1); The anti-blocking structure of the gating system includes two fixed plates (5), two electric telescopic rods (4), a connecting plate (3) and a pouring pipe (9). The two fixed plates (5) are fixedly connected to both sides of the motor cover casting mold (1). The two electric telescopic rods (4) are fixedly installed on the top of the corresponding fixed plates (5). The telescopic ends of the two electric telescopic rods (4) are fixedly connected to the bottom of the connecting plate (3). The injection tube (9) is rotatably connected inside the connecting plate (3). The bottom end of the injection tube (9) extends into the interior of the gating hole (11). A sealing plate (14) is fixedly sleeved on the outer surface of the injection tube (9). The sealing plate (14) is slidably connected to the interior of the gating hole (11). A limiting groove (18) is opened inside the connecting plate (3). A limiting ring (17) is fixedly sleeved on the outer surface of the injection tube (9). The limiting ring (17) is slidably connected to the interior of the limiting groove (18).

2. The anti-clogging device for the gating system of automotive castings according to claim 1, characterized in that: The anti-blocking structure of the gating system also includes a drive motor (7), a gear (12) and a gear ring (13), with the drive motor (7) fixedly installed on the top of the connecting plate (3); The output end of the drive motor (7) rotates through the connecting plate (3) and is fixedly connected to the gear (12). The gear ring (13) is fixedly sleeved on the outer surface of the injection tube (9). The gear (12) and the gear ring (13) mesh with each other.

3. The anti-clogging device for the gating system of automotive castings according to claim 2, characterized in that: The bottom of the connecting plate (3) is fixedly connected to a protective shell (8), which is located outside the gear (12) and the gear ring (13).

4. The anti-clogging device for the gating system of automotive castings according to claim 1, characterized in that: The top of the motor cover casting mold (1) is provided with a pressure relief hole (19), and a sealing screw (10) is connected to the internal thread of the pressure relief hole (19).

5. The anti-clogging device for the gating system of automotive castings according to claim 1, characterized in that: A control panel (6) is fixedly installed on one side of the motor cover casting mold (1).

6. The anti-clogging device for the gating system of automotive castings according to claim 1, characterized in that: The bottom of the motor cover casting mold (1) is provided with a sealing groove (16), and the top of the base (2) is fixedly connected with a sealing strip (15), which is slidably connected to the inside of the sealing groove (16).

7. The anti-clogging device for the gating system of automotive castings according to claim 1, characterized in that: The two electric telescopic rods (4) are symmetrically arranged on both sides of the motor cover casting mold (1).

8. The anti-clogging device for the gating system of automotive castings according to claim 1, characterized in that: The top of the connecting plate (3) is fixedly installed with a feed pipe, which is connected to the inside of the injection pipe (9).

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