A vertical soup dispensing die casting device

Abstract

The utility model discloses a vertical soup pressure casting device belongs to vertical pressure casting technical field, including fixed template and the mould of installation on fixed template, install the barrel in fixed template, the barrel passes through fixed template and is installed below the mould, the one side of barrel is provided with the soup mouth, install the sealing plug at the soup mouth, the feed pipe is provided with the opposite sealing plug side at the soup mouth, the fixed template is close to the soup mouth one side and is provided with drive arrangement to control the movement of sealing plug, realizes the opening and closing of soup mouth, the injection hydraulic cylinder is provided below fixed template, the inside of injection hydraulic cylinder is provided with punch rod, punch rod one end is provided with punch, the punch is connected with the inner wall of barrel and slides, the utility model discloses a simple structure is reliable, shortens the pressure casting period, reduces the gas content in mould cavity and metal liquid, is favorable for the vertical soup pressure casting device of improving product quality and benefit.

Description

Technical Field

[0001] This utility model relates to the field of vertical die casting, and in particular to a vertical hot water feeding die casting device. Background Technology

[0002] Die casting refers to the process where the die casting mechanism of a die casting machine uses high speed and high pressure to push the injection piston, filling the mold cavity with molten metal from the injection barrel. A die casting machine where both the mold closing mechanism and the injection mechanism are vertically arranged is called a fully vertical die casting machine. Its injection system is located at the bottom, and there are two methods of pouring: one is to pour the molten metal into the vertical barrel before the mold closes. The die casting process is shown in the attached diagram. Figure 1 After the molten metal is poured into the barrel and the mold is closed, the injection punch rises and presses the metal into the cavity. After cooling and solidification, the mold is opened and the casting is ejected, completing one die casting cycle.

[0003] Another type is the swing-type injection platform, and the die-casting process is shown in the attached image. Figure 2 As shown, before the molten metal is poured into the cylinder, it first descends. Then, hydraulic pressure causes the cylinder and the injection cylinder to swing outward together. The molten metal is poured into the cylinder through a ladle and then returned to the vertical position for injection.

[0004] However, both of the above structures have drawbacks: the first method involves mold closing only after each injection, reducing production efficiency and causing the molten metal to cool easily and have poor fluidity; the second method is cumbersome, inefficient, and the molten metal cools easily. To address these issues, this patent proposes a novel injection method for vertical die-casting machines, significantly shortening injection time, ensuring molten metal fluidity, and improving product quality and efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a vertical hot metal casting device that shortens the die casting cycle, reduces the gas content in the mold cavity and molten metal, and is conducive to improving product quality and efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a vertical soup-feeding die-casting device, including a fixed template and a mold installed on the fixed template. A material cylinder is installed in the fixed template and passes through the fixed template and is installed below the mold. A soup-feeding port is opened on one side of the material cylinder, and a sealing plug is installed at the soup-feeding port. A feed pipe is provided on the side of the soup-feeding port opposite to the sealing plug. A driving device is provided on the side of the fixed template near the soup-feeding port. The driving end of the driving device is connected to the sealing plug to control the movement of the sealing plug and realize the opening and closing of the soup-feeding port. A pressure injection hydraulic cylinder is provided below the fixed template. A punch rod is provided inside the pressure injection hydraulic cylinder. A punch is provided at one end of the punch rod. The punch is slidably connected to the inner wall of the material cylinder.

[0008] The preferred technical solution of this utility model is that the driving device is used to control the moving position of the sealing plug, and can be used to control the speed and manner in which the soup enters the feed cylinder.

[0009] The preferred technical solution of this utility model is that the sealing plug structure is adapted to the shape of the soup inlet, and when it is in a sealed state, it can completely restore the original shape and smoothness of the inner wall of the raw material cylinder.

[0010] The preferred technical solution of this utility model is that the feed pipe is inclined so that the soup inlet is at its lowest position, which makes it easy for the soup to flow completely into the feed cylinder under the action of gravity.

[0011] The preferred technical solution of this utility model is that guide grooves are provided on both sides of the inner wall of the material cylinder opening, and guide sliders are provided on both sides of the sealing plug corresponding to the guide grooves.

[0012] The preferred technical solution of this utility model is that the cross-section of the sealing plug and the shape of the soup inlet change linearly and continuously in the wall thickness direction, so as to ensure that the sealing plug can move freely inward in its completely closed position, that is, move towards the axis of the feed cylinder, but cannot move outward.

[0013] The preferred technical solution of this utility model is that the cross-section of the sealing plug and the shape of the soup inlet change in a stepwise manner in the wall thickness direction, thereby limiting the extreme position of the sealing plug's outward movement in a step-like manner and accurately positioning the sealing state.

[0014] The preferred technical solution of this utility model is that the sealing plug is provided with a flow guiding surface on the side near the soup inlet.

[0015] A preferred embodiment of the present invention is that the fixed template has an installation port, and the feed pipe passes through the installation port.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. During feeding, the sealing plug is driven to move by the driving device. The guide surface at the bottom of the sealing plug, together with the inclined feeding pipe, allows the molten metal entering the feeding pipe to flow more smoothly into the barrel after passing through the guide surface, avoiding splashing and air entrapment of molten metal during the feeding process. At the same time, as the liquid level rises from bottom to top, the gas in the barrel is discharged from the top, improving the casting yield and quality.

[0018] 2. This invention improves injection efficiency by opening a molten metal inlet on the side of the barrel and controlling the opening and closing of the sealing plug through a drive device. After the molten metal flows into the barrel, the molten metal inlet can be closed for rapid injection, thus improving injection efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the die-casting structure of the prior art document 1 provided in a specific embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the die-casting structure of the prior art document 2 provided in a specific embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the hot water casting device provided in a specific embodiment of this utility model;

[0022] Figure 4 This is a cross-sectional view of the structure of the hot water casting device provided in a specific embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram showing the positions of the sealing plug and the feed pipe provided in a specific embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the sealing plug sealing structure provided in a specific embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the position of the sealing plug moving structure provided in a specific embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the sealing plug installation position provided in a specific embodiment of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Fixed template; 11. Mounting port; 2. Mold; 3. Material cylinder; 31. Inlet; 32. Guide groove; 4. Sealing plug; 41. Guide slider; 42. Guide surface; 5. Drive cylinder; 6. Injection hydraulic cylinder; 61. Punch rod; 62. Punch; 7. Feed pipe. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] A vertical soup-feeding die-casting device includes a fixed template 1 and a mold 2 installed on the fixed template 1. A material cylinder 3 is installed in the fixed template 1 and passes through the fixed template 1 and is installed below the mold 2. A soup-feeding port 31 is opened on one side of the material cylinder 3. A sealing plug 4 is installed at the soup-feeding port 31. A feed pipe 7 is provided on the side of the soup-feeding port 31 opposite to the sealing plug 4. A driving device 5 is provided on the side of the fixed template 1 near the soup-feeding port 31. The driving end of the driving device 5 is connected to the sealing plug 4 to control the movement of the sealing plug 4 and realize the opening and closing of the soup-feeding port 31. A pressure injection hydraulic cylinder 6 is provided below the fixed template 1. A punch rod 61 is provided inside the pressure injection hydraulic cylinder 6. A punch 62 is provided at one end of the punch rod 61. The punch 62 is slidably connected to the inner wall of the material cylinder 3.

[0031] After the moving platen in mold 2 drives the upper mold and the lower mold installed on the fixed platen 1 to close, the sealing plug 4 is driven by the driving device 5 to move in the axial direction of the material cylinder 3. The molten metal inlet 31 of the material cylinder 3 opens, and molten metal is added through the feed pipe 7. Sufficient molten metal enters the material cylinder 3 through the feed pipe 7. The driving device 5 drives the sealing plug 4 to move to a position that matches the molten metal inlet 31, thereby closing the molten metal inlet 31. Under the action of the injection hydraulic cylinder 6, the punch 62 pushes the molten metal upward at high speed and high pressure into the cavity of mold 2. After cooling, the die-cast product is obtained. The moving mold plate opens, the ejector mechanism pushes out the casting, and after the mold is closed, the molten metal is directly injected and pressed, reducing waiting time and improving production efficiency. The rapid pressing action can effectively reduce the temperature loss of the molten metal and significantly improve its fluidity. When the punch 62 presses upward, the molten metal naturally fills the cavity, reducing the entrapment of air bubbles. In addition, the gas entering the barrel 3 and mold cavity during the mold opening and loading process tends to float above the liquid, which helps to reduce the porosity of the finished product. Furthermore, the hydraulic cylinder 6 for pressing is fixedly installed, eliminating the need for a swing mechanism, avoiding wear on the hinge shaft, and improving service life.

[0032] As one possible implementation of this solution, preferably, the driving device 5 is used to control the moving position of the sealing plug 4, and can then be used to control the speed and manner in which the soup enters the feed cylinder 3, and can be selected and controlled according to on-site requirements.

[0033] As a possible implementation of this solution, preferably, the sealing plug 4 is adapted to the shape of the soup inlet 31. When it is in a sealed state, it can completely restore the original shape and smoothness of the inner wall of the material cylinder 3, so as to improve the smoothness of the molten metal entering the material cylinder 3.

[0034] As a possible implementation of this solution, preferably, the feed pipe 7 is inclined so that the soup inlet 31 is at its lowest position, which facilitates the soup to flow completely into the material cylinder 3 under the action of gravity. The feed pipe 7 is inclined on one side of the drive device 5, which optimizes the spatial layout and avoids conflict with the movement path of the drive mechanism. At the same time, the feed pipe 7 maintains a downward inclined angle so that the molten metal can smoothly enter the material cylinder 3 by gravity.

[0035] As a possible implementation of this solution, preferably, guide grooves 32 are provided on both sides of the inner wall of the opening of the material cylinder 3, and guide sliders 41 are provided on both sides of the sealing plug 4 corresponding to the guide grooves 32. Through the cooperation of the guide grooves 32 and the guide sliders 41, the movement trajectory of the sealing plug 4 is effectively restricted, the risk of uneven wear is reduced, the service life of the sealing plug 4 is extended, and the accuracy of the opening and closing action is ensured.

[0036] As a possible implementation of this solution, preferably, the cross-section of the sealing plug 4 and the shape of the soup inlet 31 change linearly and continuously in the wall thickness direction, so as to ensure that the sealing plug 4 can move freely inward in its completely closed position, that is, move in the direction of the axis of the material cylinder 3, but cannot move outward.

[0037] The linearly varying structure limits the possibility of the sealing plug 4 moving outward, avoiding seal failure caused by vibration or pressure fluctuations. The linearly and continuously varying structural design balances seal reliability and adaptive adjustment capability.

[0038] As a possible implementation of this solution, preferably, the cross-section of the sealing plug 4 and the shape of the soup inlet 31 change in a stepwise manner in the wall thickness direction, thereby limiting the extreme position of the outward movement of the sealing plug 4 in a step-like manner and accurately positioning the sealing state.

[0039] The stepped structure provides a clear limit position for the outward movement of the sealing plug 4 (the sealing state is achieved when the stepped surface contacts), avoiding overpressure or insufficient sealing caused by the error of the drive device 5; the rigid contact of the stepped surface can withstand the reverse pressure when the broth is injected into the barrel 3, preventing the sealing plug 4 from moving outward.

[0040] As a possible implementation of this solution, preferably, the sealing plug 4 has a rectangular or trapezoidal cross-section, and the sealing plug 4 is provided with a flow guiding surface 42 on the side near the soup inlet 31. The shape and inclination angle of the flow guiding surface 42 are used to guide the molten metal, so that the molten metal enters the feed cylinder 3 more smoothly.

[0041] As a possible implementation of this solution, preferably, the fixed template 1 is provided with an installation port 11, and the feed pipe 7 is provided through the installation port 11, so that the feed pipe 7 can be directly passed through the fixed template 1 and fixed, which simplifies the installation process, avoids interference problems caused by exposed pipes, and improves the compactness of the equipment.

[0042] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A vertical hot water casting device, characterized in that: The device includes a fixed template (1) and a mold (2) installed on the fixed template (1). A material cylinder (3) is installed in the fixed template (1). The material cylinder (3) passes through the fixed template (1) and is installed below the mold (2). A soup inlet (31) is opened on one side of the material cylinder (3). A sealing plug (4) is installed at the soup inlet (31). A feed pipe (7) is provided on the side of the soup inlet (31) opposite to the sealing plug (4). A driving device (5) is provided on the side of the fixed template (1) near the soup inlet (31) to control the movement of the sealing plug (4) and realize the opening and closing of the soup inlet (31). A pressure injection hydraulic cylinder (6) is provided below the fixed template (1). A punch rod (61) is provided inside the pressure injection hydraulic cylinder (6). A punch (62) is provided at one end of the punch rod (61). The punch (62) is slidably connected to the inner wall of the material cylinder (3).

2. The vertical hot water casting device according to claim 1, characterized in that: The drive device (5) is used to control the movement position of the sealing plug (4), and can be used to control the speed and manner in which the soup enters the feed cylinder (3).

3. The vertical hot water feeding die-casting device according to claim 1, characterized in that: The sealing plug (4) is structured to match the shape of the soup inlet (31), and when it is in a sealed state, it can completely restore the original shape and smoothness of the inner wall of the raw material cylinder (3).

4. A vertical hot water feeding die-casting device according to claim 1, characterized in that: The feed pipe (7) is inclined so that the soup inlet (31) is at its lowest position, so that the soup can flow completely into the feed cylinder (3) under the action of gravity.

5. A vertical hot water casting device according to claim 1, characterized in that: The material cylinder (3) has guide grooves (32) on both sides of the opening wall, and the sealing plug (4) has guide sliders (41) on both sides corresponding to the guide grooves (32).

6. A vertical hot water casting device according to claim 1, characterized in that: The cross-section of the sealing plug (4) and the shape of the soup inlet (31) change linearly and continuously in the wall thickness direction to ensure that the sealing plug (4) can move freely inward in its fully closed position, that is, move in the direction of the axis of the material cylinder (3), but cannot move outward.

7. A vertical hot water casting device according to claim 1, characterized in that: The cross-section of the sealing plug (4) and the shape of the soup inlet (31) change in a stepwise manner in the wall thickness direction, which restricts the extreme position of the sealing plug (4) to move outward in a step-like manner, and accurately positions the sealing state.

8. A vertical hot water casting device according to claim 1, characterized in that: The sealing plug (4) has a flow guide surface (42) on the side near the soup inlet (31).

9. A vertical hot water casting device according to claim 1, characterized in that: The template (1) has an installation port (11) and the feed pipe (7) passes through the installation port (11).

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