Feed pipe for die casting barrel erosion prevention

Abstract

The present invention discloses a feed pipe for anti-erosion of a die-casting barrel. The feed pipe structure can divert aluminum-magnesium alloy liquid layer by layer so that the liquid can impact each other and offset each other when it is discharged, thereby reducing the impact kinetic energy of the alloy liquid and avoiding excessive erosion of the guide plate. The feed pipe structure is characterized in that one end of the main infusion pipe is connected to the fixed pipe and communicated with each other, a main pipeline assembly is arranged on the other end of the main infusion pipe, one end of a plurality of auxiliary infusion pipes is placed on the main pipeline assembly, the other end of the auxiliary infusion pipe first extends obliquely downward and then bends vertically downward, an auxiliary pipeline assembly is arranged on the other end of the auxiliary infusion pipe, one end of a plurality of branch infusion pipes is placed on the auxiliary pipeline assembly, the other end of the branch infusion pipe first extends obliquely downward and then bends vertically downward, one end of the outlet pipe is connected to the other end of the branch infusion pipe and communicated with each other, the other ends of the two opposite outlet pipes are opposite, one end of the fixed frame is placed on the outlet pipe, and the other end of the fixed frame is connected through a diverter plate.

Description

Technical Field

[0001] The present invention relates to a feed pipe for die casting barrel erosion prevention, which relates to a feed pipe structure for avoiding erosion of die casting barrel, and belongs to the field of alloy manufacturing. In particular, it relates to a feed pipe structure that can divert aluminum-magnesium alloy liquid layer by layer so that the liquid can offset each other when it is discharged, thereby reducing the impact kinetic energy of the alloy liquid and avoiding excessive erosion of the guide plate. Background Art

[0002] At present, in the process of pressure casting of aluminum-magnesium alloy, due to the high temperature of the alloy liquid and the large drop of the alloy liquid falling directly into the barrel through the material trough, the high-temperature alloy liquid has a large kinetic energy. When the alloy liquid falls to the bottom of the barrel, it will produce high-temperature and high-speed impact and erosion on the barrel, which can easily cause wear inside the barrel and affect its normal service life. In the prior art, a diverter plate is added at the liquid inlet of the barrel to buffer and unload the high-temperature and high-speed alloy liquid and reduce the erosion of the barrel. However, the essence of this method is to convert the erosion of the barrel by the alloy liquid to the diverter plate in disguise. The diverter plate is subjected to a large erosion force and has a low service life.

[0003] Announcement No. CN110328350A discloses an anti-erosion device for a die-casting barrel, including a barrel and a guide hopper. The barrel is a horizontal cylindrical barrel with an arc-shaped cavity inside. A feed port is provided on the top of the barrel. The guide hopper is fixed on the feed port. The guide funnel is composed of a feed hopper, a fixed bracket and a guide diverter plate. The fixed bracket is arranged on both sides of the hopper. The hopper is fixed in the feed port through the fixed bracket. The guide diverter plate is arranged in the feed hopper. The guide diverter plate used in the anti-erosion structure of the barrel withstands a large erosion force and has a low service life, and needs to be replaced frequently. Summary of the invention

[0004] In order to improve the above situation, the present invention provides a feed pipe for anti-erosion of a die-casting barrel, which can divert the aluminum-magnesium alloy liquid layer by layer so that the impact between them can be offset when the liquid is discharged, thereby reducing the impact kinetic energy of the alloy liquid and avoiding excessive erosion of the guide plate.

[0005] The feed pipe for die-casting barrel erosion prevention of the present invention is realized as follows: the feed pipe for die-casting barrel erosion prevention of the present invention is composed of a fixed pipe, a main infusion pipe, an auxiliary infusion pipe, a branch infusion pipe, a fixed frame, a diverter plate, a liquid outlet pipe, a floating plate, a conical inclined surface and a buffer lifting surface. One end of the main infusion pipe is connected to the fixed pipe and communicated with each other. A main pipeline assembly is arranged on the other end of the main infusion pipe. One end of a plurality of auxiliary infusion pipes is placed on the main pipeline assembly. The other end of the auxiliary infusion pipe first extends obliquely downward and then bends vertically downward. An auxiliary pipeline assembly is arranged on the other end of the auxiliary infusion pipe. One end of multiple branch infusion tubes is placed on the auxiliary pipeline assembly, and the other end of the branch infusion tube first extends obliquely downward and then bends vertically downward. One end of the outlet pipe is connected to the other end of the branch infusion tube and is communicated with each other. The other ends of the two opposite outlet pipes are opposite to each other. One end of the fixing frame is placed on the outlet pipe, and the other end of the fixing frame is connected through a diverter plate. The diverter plate is located directly below the auxiliary pipeline assembly, and a floating plate is provided at the bottom of the diverter plate. The top surface of the diverter plate is first recessed in the direction of the floating plate to form a buffer lifting surface, and then convex in the direction of the auxiliary pipeline assembly to form a conical inclined surface.

[0006] Beneficial effects.

[0007] 1. It can divert the aluminum-magnesium alloy liquid layer by layer so that the liquid can impact and offset each other when it is discharged, thereby reducing the impact kinetic energy of the aluminum-magnesium alloy liquid and thus reducing the erosion of the diverter plate.

[0008] Second, it can avoid erosion of the pressure casting barrel and increase its service life.

[0009] 3. Simple structure, convenient and practical.

[0010] 4. Low cost and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional structural diagram of a feed pipe for anti-erosion of a die-casting barrel according to the present invention;

[0012] Figure 2 A schematic structural diagram of a feed pipe for die-casting barrel erosion prevention according to the present invention;

[0013] Figure 3 A bottom view of a feed pipe for anti-erosion of a die-casting barrel according to the present invention;

[0014] Figure 4 A schematic structural diagram of a feed pipe manifold for erosion prevention of a die-casting barrel according to the present invention.

[0015] In the attached figure

[0016] The components include: a fixed tube (1), a main infusion tube (2), an auxiliary infusion tube (3), a branch infusion tube (4), a fixed frame (5), a diverter plate (6), a liquid outlet tube (7), a floating plate (8), a conical inclined surface (9), and a buffer lifting surface (10). DETAILED DESCRIPTION

[0017] The present invention provides a feed pipe for die-casting barrels to prevent erosion, which is realized as follows: The present invention provides a feed pipe for die-casting barrels to prevent erosion, which comprises a fixed pipe (1), a main infusion pipe (2), an auxiliary infusion pipe (3), a branch infusion pipe (4), a fixed frame (5), a diverter plate (6), a liquid outlet pipe (7), a floating plate (8), a conical inclined surface (9) and a buffer lifting surface (10); one end of the main infusion pipe (2) is connected to the fixed pipe (1) and communicates with each other; a main pipeline assembly is arranged on the other end of the main infusion pipe (2); one end of a plurality of auxiliary infusion pipes (3) is placed on the main pipeline assembly; the other end of the auxiliary infusion pipe (3) first extends obliquely downward and then bends vertically downward; the other end of the auxiliary infusion pipe (3) is arranged on the auxiliary pipeline assembly; One end of a plurality of branch infusion pipes (4) is placed on the auxiliary pipeline assembly, the other end of the branch infusion pipe (4) first extends obliquely downward and then bends vertically downward, one end of the outlet pipe (7) is connected to the other end of the branch infusion pipe (4) and is in communication, the other ends of the two opposite outlet pipes (7) are opposite, one end of the fixing frame (5) is placed on the outlet pipe (7), the other end of the fixing frame (5) is connected via a diverter plate (6), the diverter plate (6) is located directly below the auxiliary pipeline assembly, a floating plate (8) is placed at the bottom of the diverter plate (6), the top surface of the diverter plate (6) is first recessed in the direction of the floating plate (8) to form a buffer lifting surface (10), and then protrudes in the direction of the auxiliary pipeline assembly to form a conical inclined surface (9).

[0018] When in use, the main liquid infusion pipe (2) is first connected to the alloy liquid output pipe, and the feed pipe structure is placed in the die casting barrel. The floating plate (8) at the bottom of the diverter plate (6) makes the liquid outlet pipe (7) always slightly higher than the alloy liquid surface. The high-temperature aluminum-magnesium alloy liquid enters from the main liquid infusion pipe (2), then flows through a plurality of auxiliary liquid infusion pipes (3) and a plurality of branch liquid infusion pipes (4), is diverted layer by layer through the auxiliary liquid infusion pipes (3) and the branch liquid infusion pipes (4), and finally is ejected through the liquid outlet pipe (7). Since the other ends of the two opposite liquid outlet pipes (7) are opposite, the high-temperature aluminum-magnesium alloy liquid with kinetic energy ejected from the liquid outlet pipes (7) impact and offset each other, and then falls on the diverter plate (6). The conical inclined surface (9) on the diverter plate (6) further offsets the impact kinetic energy of the falling alloy liquid, and finally flows into the die casting barrel through the buffering of the buffer lifting surface (10);

[0019] The design of the other ends of the two opposite liquid outlet pipes (7) being opposite to each other can make the aluminum-magnesium alloy liquid flow in opposite directions after being diverted layer by layer through the auxiliary liquid infusion pipe (3) and the branch liquid infusion pipe (4), thereby mutually offsetting the impact kinetic energy of the aluminum-magnesium alloy liquid, thereby reducing the erosion of the diverter plate (6);

[0020] The bottom of the diverter plate (6) is provided with a floating plate (8), which enables the diverter plate (6) to float on the aluminum-magnesium alloy solution when in use, thereby ensuring that the liquid outlet pipe (7) is always slightly higher than the alloy liquid surface, thereby preventing the liquid outlet pipe (7) from being filled and blocked by the liquid in the die casting barrel;

[0021] The top surface of the diverter plate (6) is first recessed in the direction of the floating plate (8) to form a buffer lifting surface (10), and then protrudes in the direction of the auxiliary pipeline assembly to form a conical inclined surface (9). When in use, the conical inclined surface (9) can guide the falling alloy solution and change the flow direction of the alloy solution, thereby dispersing and offsetting the vertical downward impact force of the alloy solution. After the alloy solution is buffered by the buffer lifting surface (10), it flows into the die casting barrel, thereby avoiding excessive corrosion of the die casting barrel.

[0022] The other end of the auxiliary infusion tube (3) is first extended obliquely downward and then bent vertically downward. When in use, on the one hand, the plurality of auxiliary infusion tubes (3) cooperate with each other to preliminarily divert and guide the alloy solution. On the other hand, the obliquely arranged auxiliary infusion tubes (3) can alleviate the impact of the alloy solution on the corner of the auxiliary infusion tube (3), thereby extending the service life of the auxiliary infusion tube (3);

[0023] The other end of the branch infusion tube (4) is first extended obliquely downward and then bent vertically downward. When in use, the plurality of branch infusion tubes (4) cooperate to divert the alloy solution again. At the same time, the obliquely arranged branch infusion tubes (4) can alleviate the impact of the alloy solution on the connection between the branch infusion tube (4) and the outlet tube (7), thereby preventing the connection between the branch infusion tube (4) and the outlet tube (7) from being broken due to long-term impact.

[0024] The auxiliary infusion pipe (3), the branch infusion pipe (4), the outlet pipe (7) and the diverter plate (6) are designed to cooperate with each other. When in use, the high-temperature aluminum-magnesium alloy liquid enters from the main infusion pipe (2), the plurality of auxiliary infusion pipes (3) cooperate to perform preliminary diversion on the aluminum-magnesium alloy liquid, the branch infusion pipe (4) performs secondary diversion on the aluminum-magnesium alloy liquid, and the kinetic energy of the aluminum-magnesium alloy liquid is initially offset by the layered diversion structure, and then flows into the outlet pipe (7). The mouths of the outlet pipes (7) are opposite to each other, so that the high-temperature aluminum-magnesium alloy liquid with kinetic energy ejected from the outlet pipe (7) impact and offset each other, and then wash onto the diverter plate (6). The conical inclined surface (9) on the diverter plate (6) further offsets the impact kinetic energy of the alloy liquid, and finally flows into the die casting barrel through the buffering of the buffer lifting surface (10);

[0025] The purpose of diverting the aluminum-magnesium alloy liquid into layers and making them impact and offset each other when discharging the liquid is achieved, thereby reducing the impact kinetic energy of the alloy liquid.

Claims

1. A feed pipe for die casting barrel erosion prevention, characterized by: The apparatus is constructed so that when the liquid is in the flow direction, the flow rate is controlled by the control panel, and the control panel has the advantages of being able to adjust the flow rate of the liquid in the flow direction and being able to adjust the flow rate of the liquid in the flow direction. At the bottom, a floating plate is arranged at the bottom of the diverter plate, and the top surface of the diverter plate is firstly recessed toward the floating plate to form a buffer lifting surface, and then protrudes toward the auxiliary pipeline assembly to form a conical inclined surface. The auxiliary infusion pipe, branch infusion pipe, outlet pipe and diverter plate are designed to cooperate with each other. When in use, the high-temperature aluminum-magnesium alloy liquid enters from the main infusion pipe, and a plurality of auxiliary infusion pipes cooperate to perform preliminary diversion of the aluminum-magnesium alloy solution, and the branch infusion pipe performs secondary diversion of the aluminum-magnesium alloy solution. The kinetic energy of the aluminum-magnesium alloy solution is preliminarily offset through the layer-by-layer diversion structure, and then flows into the outlet pipe. The mouths of the outlet pipes are opposite to each other, so that the high-temperature aluminum-magnesium alloy liquid with kinetic energy ejected from the outlet pipe impacts and offsets each other, and then flushes onto the diverter plate. The conical inclined surface on the diverter plate further offsets the impact kinetic energy of the alloy liquid, and finally flows into the die-casting barrel through the buffering of the buffer lifting surface.

2. A feed pipe for die casting barrel erosion prevention according to claim 1, characterized in that A floating plate is arranged at the bottom of the diverter plate, which can make the diverter plate float on the aluminum-magnesium alloy solution when in use, thereby ensuring that the liquid outlet pipe is always higher than the alloy liquid level, thereby preventing the liquid outlet pipe from being filled and blocked by the liquid in the die casting barrel.

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