Safe nodular cast iron inoculant adding device

Abstract

The utility model relates to the technical field of nodular cast iron casting, in particular to a safe nodular cast iron inoculant adding device which comprises an injection funnel, a conveying pipeline is fixedly installed at the lower end of the injection funnel, and a rotating cover is rotatably installed at the end, away from the injection funnel, of the conveying pipeline. A plurality of cylindrical holes are formed in one end of the rotating cover, a plurality of round pipes are arranged below the rotating cover, one ends of the round pipes are rotationally connected with the surface of the rotating cover, throwing hoses are installed in the round pipes, a lifting block is installed on the rotating cover through an adjusting assembly, and a plurality of supporting rods are rotationally installed on the lifting block. The ends, away from the lifting block, of the multiple supporting rods are rotationally connected with the multiple round pipes correspondingly. A nucleating agent is dispersed into a plurality of branches, the inclination angles of the round pipes are adjusted through mutual cooperation of the adjusting assembly, the lifting block and the supporting rod, then the dispersing degree of the nucleating agent is controlled, and the nucleating agent and a metal solution are mixed more evenly.

Description

Technical Field

[0001] This utility model relates to the field of ductile iron casting technology, and in particular to a safe device for adding ductile iron inoculant. Background Technology

[0002] Ductile iron has comprehensive properties close to those of steel and is used to cast parts that are subjected to complex stresses and require high strength, toughness, and wear resistance. During the casting process of ductile iron parts, a small amount of other substances need to be added to the molten metal to promote nucleation, inhibit growth, and refine the grains. This process is called inoculation treatment, and the additives used in the process are called inoculants.

[0003] In existing technologies, the inoculant is usually slowly poured into the metal solution through an injection funnel. However, during pouring, the inoculant tends to flow naturally and is not dispersed enough, leaving room for improvement in terms of uniform mixing. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: when the inoculant is poured into the metal solution, the inoculant flows naturally and is not sufficiently dispersed, leaving room for improvement in terms of uniform mixing. Therefore, this invention proposes a safe inoculant addition device for ductile iron.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safe device for adding an inoculant to ductile iron includes an injection funnel, a conveying pipe fixedly installed at the lower end of the injection funnel, and a cylindrical rotating cover installed at the end of the conveying pipe away from the injection funnel via a rotating assembly.

[0007] One end of the rotating cover has multiple cylindrical holes that are connected to the conveying pipe. Multiple round pipes are provided below the rotating cover. The round pipes are aligned with the multiple cylindrical holes. One end of each round pipe is rotatably connected to the surface of the rotating cover. A dispensing hose is installed inside the round pipe. One end of the dispensing hose is fixedly installed inside the cylindrical hole. The dispensing hose is connected to the conveying pipe.

[0008] A lifting block is installed on the rotating cover via an adjustment assembly. Multiple support rods are rotatably mounted on the lifting block, and the ends of the multiple support rods away from the lifting block are rotatably connected to multiple round tubes.

[0009] Preferably, the adjustment assembly includes a threaded rod vertically rotatably mounted in the middle of the rotating cover and an adjustment block fixedly mounted on one end of the threaded rod, wherein the lifting block is threadedly sleeved on the threaded rod.

[0010] Preferably, the rotating assembly includes a ring fixedly fitted onto the conveying pipe and a plurality of U-shaped sliders, each fixedly mounted on the upper end of the rotating cover, with the plurality of sliders slidably mounted on the ring.

[0011] Preferably, a gear ring is fixedly sleeved on the rotating cover, and a drive assembly for rotating the gear ring is installed on the conveying pipe.

[0012] Preferably, the drive assembly includes a drive motor fixedly mounted on the conveying pipeline and a spur gear fixedly mounted on the output end of the drive motor, the spur gear being meshed with a gear ring.

[0013] Preferably, multiple circular tubes are circumferentially spaced on the rotating cover, and the circular tubes are sleeved on the delivery hose.

[0014] The beneficial effects of this utility model are as follows:

[0015] Before the inoculant is added to the molten metal through the delivery pipe, it enters multiple delivery hoses through a rotating hood, thereby dispersing the inoculant into multiple streams. At the same time, by adjusting the components, lifting blocks and support rods, the tilt angle of the multiple round tubes is adjusted, thereby controlling the degree of inoculant dispersion and making the inoculant and molten metal mix more evenly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a safe inoculant addition device for ductile iron proposed in this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the conveying pipeline, rotating cover, and circular pipe;

[0018] Figure 3 A bottom-view three-dimensional structural diagram of the rotating cover, circular tube, delivery hose, lifting block, support rod and adjustment components;

[0019] Figure 4 A frontal three-dimensional cross-sectional schematic diagram of the rotating cover, circular tube, delivery hose, lifting block, support rod, and adjustment assembly.

[0020] In the diagram: 1. Injection funnel, 2. Conveying pipe, 3. Rotating cover, 4. Circular pipe, 5. Dispensing hose, 6. Lifting block, 7. Support rod, 8. Threaded rod, 9. Adjusting block, 10. Circular ring, 11. Slider, 12. Gear ring, 13. Drive motor, 14. Spur gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A safe device for adding an inoculant to ductile iron includes an injection funnel 1, a conveying pipe 2 fixedly installed at the lower end of the injection funnel 1, and a cylindrical rotating cover 3 installed at the end of the conveying pipe 2 away from the injection funnel 1 via a rotating assembly.

[0023] When using the injection device, place the device above the molten metal and then pour the inoculant into the injection funnel 1. The inoculant in the injection funnel 1 will be added to the molten metal along with the delivery pipe 2.

[0024] One end of the rotating cover 3 has multiple cylindrical holes that are all connected to the conveying pipe 2. Multiple round pipes 4 are provided below the rotating cover 3. The multiple round pipes 4 are aligned with the multiple cylindrical holes. One end of the round pipes 4 is rotatably connected to the surface of the rotating cover 3. A delivery hose 5 is installed inside the round pipe 4. One end of the delivery hose 5 is fixedly installed in the cylindrical hole. The delivery hose 5 is connected to the conveying pipe 2. The multiple round pipes 4 are equidistantly arranged on the rotating cover 3. The round pipes 4 are sleeved on the delivery hose 5. A lifting block 6 is installed on the rotating cover 3 through an adjustment component. Multiple support rods 7 are rotatably installed on the lifting block 6. The ends of the multiple support rods 7 away from the lifting block 6 are rotatably connected to the multiple round pipes 4.

[0025] When the inoculant enters the delivery pipe 2, it enters the rotating hood 3, and then passes through multiple cylindrical holes into multiple delivery hoses 5. It then flows out from one end of each delivery hose 5, which avoids the inoculant flowing into the metal solution in a confluence. Instead, the inoculant is dispersed into multiple streams and added to the metal solution, making the inoculant and metal solution mix more evenly.

[0026] Multiple round tubes 4 are rotatably mounted on the rotating cover 3. At the same time, the two ends of the dispensing hose 5 are respectively installed in the cylindrical hole and the round tube 4. When the round tube 4 rotates, it will change the dispensing angle of one end of the dispensing hose 5. The lifting block 6 can be moved up and down through the adjustment component. When the lifting block 6 moves up and down, it will drive the multiple round tubes 4 to rotate through multiple support rods 7. It can gather or disperse one end of the multiple round tubes 4. The degree of dispersion of the inoculant can be controlled according to the actual situation.

[0027] The adjustment assembly includes a threaded rod 8 vertically rotatably mounted in the middle of the rotating cover 3 and an adjustment block 9 fixedly mounted on one end of the threaded rod 8. The lifting block 6 is threadedly sleeved on the threaded rod 8. By rotating the adjustment block 9, the threaded rod 8 is driven to rotate, which in turn drives the lifting block 6 to move up and down. When the lifting block 6 moves vertically upward, one end of the multiple round tubes 4 converges. When the lifting block 6 moves vertically downward, one end of the multiple round tubes 4 disperses.

[0028] The rotating assembly includes a ring 10 fixedly sleeved on the conveying pipe 2 and multiple U-shaped sliders 11 fixedly mounted on the upper end of the rotating cover 3. The multiple sliders 11 are slidably mounted on the ring 10, and the rotating cover 3 is rotatably mounted on the ring 10 by the multiple sliders 11. One end of the conveying pipe 2 is in contact with the inner wall of the rotating cover 3.

[0029] A gear ring 12 is fixedly sleeved on the rotating cover 3. A drive assembly for driving the gear ring 12 to rotate is installed on the conveying pipe 2. The drive assembly includes a drive motor 13 fixedly installed on the conveying pipe 2 and a spur gear 14 fixedly installed on the output end of the drive motor 13. The spur gear 14 is meshed with the gear ring 12. When the inoculant is added to the metal solution, the drive motor 13 can be started to drive the spur gear 14 to rotate. Since the spur gear 14 is meshed with the gear ring 12, the rotating cover 3 can be driven to rotate at one end of the conveying pipe 2 through the spur gear 14, thereby driving the multiple dosing hoses 5 to rotate, which can further disperse the inoculant.

[0030] In this invention, when the inoculant enters the delivery pipe 2, it enters the rotating cover 3, then passes through multiple cylindrical holes and enters multiple delivery hoses 5 respectively. It then flows out from one end of each delivery hose 5, which avoids the inoculant flowing into the metal solution in a confluence. Instead, the inoculant is dispersed into multiple branches and added to the metal solution, making the inoculant and metal solution mix more evenly.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safe inoculant addition device for ductile iron, comprising an injection funnel (1), characterized in that, The lower end of the injection funnel (1) is fixedly installed with a conveying pipe (2), and the end of the conveying pipe (2) away from the injection funnel (1) is equipped with a cylindrical rotating cover (3) through a rotating assembly; One end of the rotating cover (3) is provided with a plurality of cylindrical holes that are connected to the conveying pipe (2). A plurality of cylindrical tubes (4) are provided below the rotating cover (3). The plurality of cylindrical tubes (4) are aligned with the plurality of cylindrical holes respectively. One end of the cylindrical tubes (4) is rotatably connected to the surface of the rotating cover (3). A delivery hose (5) is installed inside the cylindrical tubes (4). One end of the delivery hose (5) is fixedly installed inside the cylindrical hole. The delivery hose (5) is connected to the conveying pipe (2). A lifting block (6) is installed on the rotating cover (3) via an adjustment assembly. Multiple support rods (7) are rotatably installed on the lifting block (6). The ends of the multiple support rods (7) away from the lifting block (6) are rotatably connected to multiple round tubes (4).

2. The device for adding a safe inoculant to ductile iron according to claim 1, characterized in that, The adjustment assembly includes a threaded rod (8) that is vertically rotatably installed in the middle of the rotating cover (3) and an adjustment block (9) that is fixedly installed at one end of the threaded rod (8). The lifting block (6) is threadedly sleeved on the threaded rod (8).

3. The device for adding a safe inoculant to ductile iron according to claim 1, characterized in that, The rotating assembly includes a ring (10) fixedly sleeved on the conveying pipe (2) and a plurality of U-shaped sliders (11) fixedly mounted on the upper end of the rotating cover (3), with the plurality of sliders (11) slidably mounted on the ring (10).

4. The device for adding a safe inoculant to ductile iron according to claim 1, characterized in that, A gear ring (12) is fixedly sleeved on the rotating cover (3), and a drive assembly for driving the gear ring (12) to rotate is installed on the conveying pipe (2).

5. The device for adding a safe inoculant to ductile iron according to claim 4, characterized in that, The drive assembly includes a drive motor (13) fixedly mounted on the conveying pipe (2) and a spur gear (14) fixedly mounted on the output end of the drive motor (13), the spur gear (14) meshing with the gear ring (12).

6. The device for adding a safe inoculant to ductile iron according to claim 1, characterized in that, Multiple circular tubes (4) are circumferentially spaced on the rotating cover (3), and the circular tubes (4) are sleeved on the delivery hose (5).

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