Melt conveying device for aluminum alloy semi-solid pressure casting

Abstract

The utility model discloses a melt conveying device for aluminum alloy semi-solid pressure casting, which comprises a metal melt storage device, a base and a support pillar, the metal melt storage device comprises a holding furnace and a crucible, the upper surface of the metal melt storage device is provided with a feed port, the lower surface of the metal melt storage device is provided with a discharge port, and the support pillar is arranged on the base. The bottom end of the discharging opening is connected with a screw pump, the screw pump comprises a feeding body, a motor, a gear, a driving shaft, a first driven shaft, a second driven shaft, a pump body, a pull rod and a discharging body, spiral blades are arranged on the surfaces of the driving shaft, the first driven shaft and the second driven shaft and are meshed with one another, and the left end of the screw pump is connected with a conveying pipe. And a discharge hole is formed in the other end of the conveying pipe. By means of the structure, the temperature of molten metal in the conveying process can be kept, solidification is prevented, and the flow speed and conveying pressure of the molten metal can be effectively controlled.

Description

Technical Field

[0001] This utility model relates to the field of molten material technology for semi-solid die casting of aluminum alloys, and in particular to a molten material conveying device for semi-solid die casting of aluminum alloys. Background Technology

[0002] The molten material conveying device for semi-solid die casting of aluminum alloys is mainly used to transport molten aluminum alloys from the melting furnace to the die casting machine to meet the strict requirements of molten material flowability and temperature in the semi-solid die casting process. Currently, metals are directly melted and refined in an open melting crucible, and then the molten metal in the crucible is conveyed to the die casting machine by hand or robotic arm scooping. Not only does the metal oxidize due to direct contact with air during refining, but further contact with air during conveying prevents the molten metal from achieving a semi-solid state, thus significantly reducing the quality of the die-cast products.

[0003] According to prior art, a search revealed a Chinese patent that discloses a "metal melting and conveying device" with application number "CN201420658950.9". This patent mainly reduces the probability of contact between molten metal and air, preventing further oxidation of the molten metal.

[0004] However, the existing technologies mentioned above still have shortcomings. When conveying molten metal, it is impossible to guarantee that the molten metal is within the ideal temperature range, which may lead to premature solidification or uneven temperature. Furthermore, the conveying efficiency of the screw conveyor is low, and the flow rate of the molten metal cannot be precisely controlled. Utility Model Content

[0005] The purpose of this invention is to provide a molten material conveying device for semi-solid die casting of aluminum alloys, which can maintain the temperature of the molten metal during the conveying process, prevent solidification, and effectively control the flow rate and conveying pressure of the molten metal.

[0006] To achieve the above objectives, a molten material conveying device for semi-solid die casting of aluminum alloy is provided, including a molten metal storage device, a base, and a support column;

[0007] The upper surface of the molten metal storage device is provided with a feeding port, and the lower surface of the molten metal storage device is provided with a discharge port. The bottom end of the discharge port is connected to a screw pump, the left end of the screw pump is connected to a conveying pipe, and the other end of the conveying pipe is provided with a discharge port.

[0008] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, the molten metal storage device includes a holding furnace and a crucible. The crucible is responsible for heating the aluminum alloy into a semi-solid molten material, and the holding furnace can reduce the heat dissipated by the crucible, thereby reducing energy consumption.

[0009] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, the screw pump is fixed on the base, and the screw pump includes a feed body, a motor, gears, a drive shaft, a first driven shaft, a second driven shaft, a pump body, a pull rod, and a discharge body.

[0010] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, the motor is located on the right side of the pump body, and the output end of the motor is fixedly connected to the drive shaft. The upper and lower sides of the drive shaft are respectively provided with a first driven shaft and a second driven shaft. Gears are provided on the right side of the drive shaft, the first driven shaft, and the second driven shaft, and the three gears mesh with each other. Through the meshing of the gears, the drive shaft can drive the first driven shaft and the second driven shaft when it rotates. A discharge body is provided on the left side of the pump body, from which molten metal can be discharged. A pull rod is provided on the outer surface of the pump body, which can transfer the pulling force from one component to another, helping to achieve the stability of the mechanical system.

[0011] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, the surfaces of the drive shaft, the first driven shaft, and the second driven shaft are provided with spiral blades, and the spiral blades mesh with each other. The rotation of the drive shaft and the driven shaft drives the spiral blades to rotate together, thereby realizing the function of conveying molten metal.

[0012] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, the conveying pipe consists of three structures: an outer pipe, a heating pipe, and an inner pipe.

[0013] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, the heating tube is spiral-shaped and wound around the surface of the inner pipe, which can heat the molten metal inside the pipe to maintain a stable temperature and ensure that the molten metal does not solidify during the conveying process. The inner pipe is a ceramic pipe, which has strong wear resistance and high temperature resistance, and a low coefficient of friction, which can reduce the residue of molten metal during the conveying process.

[0014] According to the aforementioned molten material conveying device for semi-solid die casting of aluminum alloy, valves are provided inside the discharge port and the outlet port.

[0015] This utility model has the following beneficial effects:

[0016] 1. Compared with the prior art, the molten metal conveying device for semi-solid die casting of aluminum alloy is provided with a feed body, a motor, gears, a drive shaft, a first driven shaft, a second driven shaft, a pump body, a pull rod, and a discharge body. The molten metal enters the screw pump through the feed body. The motor is started, which makes the drive shaft start to rotate. At the same time, because the gears mesh with each other, the first driven shaft and the second driven shaft are driven to rotate together, so that the molten metal is conveyed out from the discharge body by the spiral blades provided on the surfaces of the drive shaft and the driven shaft.

[0017] 2. Compared with the prior art, the molten material conveying device for semi-solid die casting of aluminum alloy is equipped with an outer pipe, a heating pipe and an inner pipe. The heating pipe heats the molten metal in the inner pipe to keep the temperature of the molten metal stable.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a three-dimensional front view of a molten material conveying device for semi-solid die casting of aluminum alloy according to this utility model;

[0021] Figure 2 This is a front view of a molten material conveying device for semi-solid die casting of aluminum alloy according to this utility model;

[0022] Figure 3 This is a front cross-sectional view of a molten material conveying device for semi-solid die casting of aluminum alloy according to this utility model;

[0023] Figure 4 This utility model relates to a molten material conveying device for semi-solid die casting of aluminum alloys. Figure 3 Enlarged view of point A.

[0024] Legend:

[0025] 1. Metal molten material storage equipment; 101. Holding furnace; 102. Crucible; 2. Feed port; 3. Discharge port; 4. Support column; 5. Base; 6. Screw pump; 601. Feed body; 602. Motor; 603. Gear; 604. Drive shaft; 605. First driven shaft; 606. Second driven shaft; 607. Pump body; 608. Tie rod; 609. Discharge body; 7. Conveying pipe; 701. External pipe; 702. Heating pipe; 703. Internal pipe; 8. Discharge port. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1-4This utility model discloses a molten material conveying device for semi-solid die casting of aluminum alloy, which includes a molten metal storage device 1, a base 5, and support columns 4. Four support columns 4 are provided to keep the molten metal storage device 1 stable. The molten metal storage device 1 includes a holding furnace 101 and a crucible 102. The crucible 102 is responsible for heating the aluminum alloy into a semi-solid molten material. The holding furnace 101 can reduce the heat dissipated by the crucible 102, thereby reducing energy consumption. The upper surface of the molten metal storage device 1 is provided with a feeding port 2 for feeding metal. The lower surface of the molten metal storage device 1 is provided with a discharge port 3. The bottom end of the discharge port 3 is connected to a screw pump 6, and the liquid heated into molten metal is transported from the discharge port 3 into the screw pump 6.

[0028] The screw pump 6 includes a feed body 601, a motor 602, gears 603, a drive shaft 604, a first driven shaft 605, a second driven shaft 606, a pump body 607, a tie rod 608, and a discharge body 609. The motor 602 is located on the right side of the pump body 607, and its output end is fixedly connected to the drive shaft 604. The first driven shaft 605 and the second driven shaft 606 are respectively arranged on the upper and lower sides of the drive shaft 604. Gears 603 are arranged on the right side of the drive shaft 604, the first driven shaft 605, and the second driven shaft 606, and the three gears 603 mesh with each other. Through the meshing of the gears 603, the drive shaft can... When 604 rotates, it drives the first driven shaft 605 and the second driven shaft 606. A discharge body 609 is located on the left side of the pump body 607, from which molten metal can be discharged. A pull rod 608 is provided on the outer surface of the pump body 607, which can transfer tension from one component to another, helping to achieve the stability of the mechanical system. Spiral blades are provided on the surfaces of the drive shaft 604, the first driven shaft 605, and the second driven shaft 606, and the spiral blades mesh with each other. The rotation of the drive shaft 604, the first driven shaft 605, and the second driven shaft 606 drives the spiral blades to rotate together, thereby achieving the function of transporting molten metal.

[0029] The left end of the screw pump 6 is connected to the conveying pipe 7, and the other end of the conveying pipe 7 is provided with the discharge port 8.

[0030] The conveying pipe 7 consists of three structures: an outer pipe 701, a heating pipe 702, and an inner pipe 703. The heating pipe 702 is spiral-shaped and wound around the surface of the inner pipe 703, which heats the molten metal inside the pipe, maintaining a stable temperature and ensuring that the molten metal does not solidify during conveying. The inner pipe 703 is a ceramic pipe, which has strong wear resistance and high temperature resistance, and a low coefficient of friction, reducing the residue of molten metal during conveying.

[0031] Working principle: The aluminum alloy block is loaded into the crucible 102 through the feeding port 2 and heated into molten metal. The molten metal enters the screw pump 6 from the discharge port 2. At this time, the motor 602 is started to drive the drive shaft 604 to rotate. Through the meshing between the gears 603, the first driven shaft 605 and the second driven shaft 606 are driven to rotate together, thereby conveying the molten metal from the discharge body 609 to the conveying pipe 7. The heating pipe 702 set inside the conveying pipe 7 starts to heat the molten metal in the inner pipe 703. Finally, the molten metal is discharged from the discharge port 8 into the die casting machine.

[0032] 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 molten material conveying device for semi-solid die casting of aluminum alloy, characterized in that, It includes a metal molten material storage device (1), a base (5), and a support column (4); The upper surface of the metal molten material storage device (1) is provided with a feeding port (2), the lower surface of the metal molten material storage device (1) is provided with a discharge port (3), the bottom end of the discharge port (3) is connected to a screw pump (6), the left end of the screw pump (6) is connected to a conveying pipe (7), and the other end of the conveying pipe (7) is provided with a discharge port (8).

2. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 1, characterized in that, The metal molten material storage device (1) includes a heat preservation furnace (101) and a crucible (102).

3. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 1, characterized in that, The screw pump (6) is fixed on the base (5). The screw pump (6) includes a feed body (601), a motor (602), a gear (603), a drive shaft (604), a first driven shaft (605), a second driven shaft (606), a pump body (607), a pull rod (608), and a discharge body (609).

4. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 3, characterized in that, The motor (602) is located on the right side of the pump body (607). The output end of the motor (602) is fixedly connected to the drive shaft (604). The drive shaft (604) has a first driven shaft (605) and a second driven shaft (606) on its upper and lower sides, respectively. Gears (603) are provided on the right side of the drive shaft (604), the first driven shaft (605) and the second driven shaft (606), and the three gears (603) mesh with each other. The pump body (607) has a discharge body (609) on its left side, and a pull rod (608) is provided on the outer surface of the pump body (607).

5. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 4, characterized in that, The surfaces of the drive shaft (604), the first driven shaft (605), and the second driven shaft (606) are provided with helical blades, and the helical blades mesh with each other.

6. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 1, characterized in that, The delivery pipe (7) consists of three structures: an outer pipe (701), a heating pipe (702), and an inner pipe (703).

7. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 6, characterized in that, The heating tube (702) is spiral-shaped and wrapped around the surface of the inner pipe (703), which is a ceramic pipe.

8. The molten material conveying device for semi-solid die casting of aluminum alloy according to claim 1, characterized in that, Valves are installed inside the discharge port (3) and the outlet (8).

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