Casting stream inoculation device
By designing a casting flow-based incubation device, the synchronous mixing of incubator and iron is achieved, which solves the problem of poor synchronization, improves the quality of castings and reduces labor costs.
Patent Information
- Application Number
- CN202422301833.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The inoculant addition method in the existing cast iron production has poor synchronization, resulting in uneven mixing, affecting the quality and performance of the castings, and requires two people to operate, which is costly.
A casting and flow-incubation device is designed, including a fertilization material barrel and a driving mechanism. The synchronous incubation of the incubator and the iron fluid is achieved through one-person operation. The driving mechanism is used to control the opening and closing of the discharge door, and a conical insulating funnel is provided at the bottom of the fertilization material barrel to prevent the incubator from forming in bulk.
The full mixing of inoculant and iron is achieved, ensuring the quality and performance of castings, reducing the number of operators, and reducing labor costs.
Smart Images
Figure CN223114126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting in-stream inoculation, in particular to a casting in-stream inoculation device. Background Technique
[0002] In the process of cast iron production, the inoculation process is an indispensable process in modern cast iron production. How to add a small amount of inoculant into the molten iron to change the solidification process of the molten iron, improve the as-cast structure, and enhance the mechanical properties and machining properties is crucial for the inoculation treatment process. Just for ductile iron, inoculation can improve the tendency of graphite balls to precipitate and obtain uniformly distributed and fine-grained graphite; especially for the production of as-cast ductile iron, special attention should be paid to the inoculation treatment. After selecting the type of inoculant, the addition method of the inoculant becomes the key. The traditional addition method of the inoculant is generally that a worker holds a funnel for in-stream inoculation, and another worker adjusts the posture of the ladle for casting. The synchronization of the two operations is poor, and the inoculant and the molten iron are prone to uneven mixing, thus affecting the quality and performance of the cast iron. Summary of the Invention
[0003] The utility model provides a casting in-stream inoculation device to overcome the deficiencies of the prior art.
[0004] The technical solution adopted by the utility model is: a casting in-stream inoculation device, including a ladle, an inoculant bucket, and a driving mechanism. Brackets are symmetrically arranged on both sides of the ladle opening. The inoculant bucket is hinged between the brackets and is located above the ladle opening.
[0005] A discharge port is provided at the center of the bottom of the inoculant bucket. The upper part of the discharge port is covered with a discharge door, and the discharge port is directly opposite to the ladle opening.
[0006] The driving mechanism includes a mounting frame, a first driving shaft, and a second driving shaft. The mounting frame is fixed on the bucket opening of the inoculant bucket. The first driving shaft and the second driving shaft are both vertically rotatably installed on the mounting frame. The first driving shaft is located above the bucket opening, and the lower end of the second driving shaft extends to the bottom of the inoculant bucket and is fixedly connected to the discharge door.
[0007] A gear is fixed at the upper end of the second driving shaft, and a spring is sleeved on it. The upper end of the spring abuts against the mounting frame, and the lower end abuts against an axial retaining ring sleeved on the second driving shaft. The elastic force of the spring makes the second driving shaft always have a tendency to move downward, so that the discharge door is in close contact with the bottom of the bucket. A torsion spring is sleeved on the first driving shaft, and a sector gear is fixed on it. The sector gear meshes with the gear. One end of the torsion spring is fixedly connected to the sector gear, and the other end is fixedly connected to the mounting frame.
[0008] The upper end of the first drive shaft passes through the mounting bracket and is fixedly connected to one end of the drive arm. The other end of the drive arm is connected to a flexible shaft, and the other end of the flexible shaft is connected to a hand brake fixed on the first ladle handle. Manually tightening the hand brake pulls the drive arm to swing horizontally through the flexible shaft, and the drive arm drives the first drive shaft to rotate, causing the sector gear to drive the gear to rotate the second drive shaft, thereby opening or closing the discharge door.
[0009] A conical heat-insulating funnel is provided below the bottom of the inoculant bucket. The outlet of the conical heat-insulating funnel is directly opposite to the discharge port, and the outlet is slightly larger than the discharge port.
[0010] A limit pin for defining the initial position of the sector gear is provided on the mounting bracket.
[0011] The bracket is a Y-shaped bracket, and the inoculant bucket is symmetrically hinged on the two branches of the Y-shaped bracket through a hinge axis.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The present utility model hinges the inoculant bucket above the ladle mouth through a bracket, and manually controls the inoculant in the inoculant bucket to flow into the ladle mouth by one person, completing the in-stream inoculation synchronously with the molten iron during casting, overcoming the problem of poor synchronization in the operation of two people. At the same time, the inoculant and the molten iron are fully mixed, ensuring the quality and performance of the casting. Moreover, the number of operators is reduced from two to one, reducing the labor cost.
[0014] 2. The present utility model effectively prevents the inoculant from forming lumps due to the high temperature of the molten iron during casting by providing a conical heat-insulating funnel below the bottom of the inoculant bucket, further ensuring the instantaneous in-stream inoculation of the inoculant. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is a schematic structural diagram of the inoculant bucket of the present utility model;
[0017] Figure 3 is Figure 2 a schematic cross-sectional view of the structure at A-A in
[0018] Figure 4 is a schematic top view of the inoculant of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following will Figures 1-4 be described in detail with reference to the attached
[0020] A casting in-stream inoculation device, comprising a ladle 1, an inoculant bucket 2, and a driving mechanism. On both sides of the ladle opening 1-1 of the ladle 1, brackets 3 are symmetrically arranged. The inoculant bucket 2 is hinged between the brackets 3 and is located above the ladle opening 1-1.
[0021] In the center of the bottom of the inoculant bucket 2, there is a discharge port 2-1. The upper part of the discharge port 2-1 is covered with a discharge door 7, and the discharge port 2-1 is directly opposite to the ladle opening 1-1.
[0022] The driving mechanism includes a mounting frame 4, a first driving shaft 5, and a second driving shaft 6. The mounting frame 4 is fixed on the bucket mouth of the inoculant bucket 2. The first driving shaft 5 and the second driving shaft 6 are both vertically rotatably installed on the mounting frame 4. The first driving shaft 5 is located above the bucket mouth, and the lower end of the second driving shaft 6 extends to the bottom of the inoculant bucket 2 and is fixedly connected to the discharge door 7.
[0023] At the upper end of the second driving shaft 6, a gear 8 is fixed and a spring 9 is sleeved. The upper end of the spring 9 abuts against the mounting frame 4, and the lower end abuts against an axial retaining ring 11 sleeved on the second driving shaft 6. Due to the elastic force of the spring 9, the second driving shaft 6 always has a tendency to move downward, so that the discharge door 7 is in close contact with the bottom of the bucket. A torsion spring 12 is sleeved on the first driving shaft 5, and a sector gear 10 is fixed. The sector gear 10 meshes with the gear 8. One end of the torsion spring 12 is fixedly connected to the sector gear 10, and the other end is fixedly connected to the mounting frame 4.
[0024] The upper end of the first driving shaft 5 passes through the mounting frame 4 and is fixedly connected to one end of a driving arm 14. The other end of the driving arm 14 is connected to a flexible shaft 15. The other end of the flexible shaft 15 is connected to a hand brake 16 fixed on the first ladle handle 1-2. Manually tightening the hand brake 16 pulls the driving arm 14 to swing horizontally through the flexible shaft 15. The driving arm 14 drives the first driving shaft 5 to rotate, so that the sector gear 10 drives the gear 8 to rotate the second driving shaft 6, opening or closing the discharge door 7.
[0025] In one embodiment, in order to prevent the inoculant from forming lumps due to high temperature and being unable to slide out smoothly from the discharge port 2-1 to be mixed with the molten iron solution at the ladle opening 1-1, a conical heat insulation funnel 17 is provided below the bottom of the inoculant bucket 2. The outlet 17-1 of the conical heat insulation funnel 17 is directly opposite to the discharge port 2-1, and the outlet 17-1 is slightly larger than the discharge port 2-1.
[0026] In one embodiment, a limit pin 13 for defining the initial position of the sector gear 10 is provided on the mounting frame 4.
[0027] In one embodiment, the bracket 3 is a Y-shaped bracket, and the ladle 1 is hinged to the two branches of the Y-shaped bracket through symmetric hinge shafts.
[0028] During actual use, first add the inoculant into the inoculant bucket 2, then fill the ladle 1 with molten iron. Next, hoist the ladle to the casting position by a crane. An operator uses one hand to control the ladle handle two 1-3 to adjust the posture of the ladle 1 in the vertical direction to a suitable position, and uses the other hand to control the ladle handle one 1-2 to adjust the posture of the ladle 1 in the horizontal direction so that the ladle opening 1-1 of the ladle 1 is aligned with the casting port. During casting, the hand controlling the ladle handle one 1-2 simultaneously tightens the hand brake 16 to rotate the discharge door 7 to one side, opening the discharge port 2-1. The inoculant falls from the discharge port 2-1 through the outlet 17-1 and enters the casting port simultaneously with the molten iron to complete the instantaneous in-stream inoculation of the casting. After casting is completed, release the hand brake 16. Under the action of the torsion spring 12, the discharge door 7 automatically returns to the initial position to close the discharge door 7. The utility model overcomes the problem of poor synchronization in the operation of two people. At the same time, the inoculant and the molten iron are fully mixed, ensuring the quality and performance of the casting. Moreover, the number of operators is reduced from two to one, reducing the labor cost.
[0029] The above embodiments are only preferred embodiments of the present utility model and are not used to limit the scope of implementation of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.
Claims
1. A casting in-stream inoculation device, characterized in that: It includes a ladle (1), a inoculant bucket (2), and a driving mechanism. On both sides of the ladle mouth (1-1) of the ladle (1), brackets (3) are symmetrically arranged. The inoculant bucket (2) is hinged between the brackets (3) and is located above the ladle mouth (1-1). In the center of the bottom of the inoculant bucket (2), there is a discharge port (2-1). The upper part of the discharge port (2-1) is covered with a discharge door (7), and the discharge port (2-1) is directly opposite to the ladle mouth (1-1). The driving mechanism includes a mounting frame (4), a first driving shaft (5), and a second driving shaft (6). The mounting frame (4) is fixed on the bucket mouth of the inoculant bucket (2). The first driving shaft (5) and the second driving shaft (6) are both vertically rotatably installed on the mounting frame (4). The first driving shaft (5) is located above the bucket mouth, and the lower end of the second driving shaft (6) extends to the bottom of the inoculant bucket (2) and is fixedly connected to the discharge door (7). At the upper end of the second driving shaft (6), a gear (8) is fixed and a spring (9) is sleeved. The upper end of the spring (9) abuts against the mounting frame (4), and the lower end abuts against an axial retaining ring (11) sleeved on the second driving shaft (6). Due to the elastic force of the spring (9), the second driving shaft (6) always has a tendency to move downward, so that the discharge door (7) closely adheres to the bottom of the bucket. A torsion spring (12) is sleeved on the first driving shaft (5), and a sector gear (10) is fixed. The sector gear (10) meshes with the gear (8). One end of the torsion spring (12) is fixedly connected to the sector gear (10), and the other end is fixedly connected to the mounting frame (4). The upper end of the first driving shaft (5) passes through the mounting frame (4) and is fixedly connected to one end of a driving arm (14). The other end of the driving arm (14) is connected to a flexible shaft (15). The other end of the flexible shaft (15) is connected to a hand brake (16) fixed on the ladle handle one (1-2). Manually tightening the hand brake (16) pulls the driving arm (14) to swing horizontally through the flexible shaft (15). The driving arm (14) drives the first driving shaft (5) to rotate, so that the sector gear (10) drives the gear (8) to rotate the second driving shaft (6), opening or closing the discharge door (7).
2. The casting in-stream inoculation device according to claim 1, characterized in that: Below the bottom of the inoculant bucket (2), there is a conical heat-insulating funnel (17). The outlet (17-1) of the conical heat-insulating funnel (17) is directly opposite to the discharge port (2-1), and the outlet (17-1) is slightly larger than the discharge port (2-1).
3. The in-mold inoculation device according to claim 1 or 2, characterized in that: On the mounting frame (4), a limit pin (13) is provided for limiting the initial position of the sector gear (10).
4. The casting in-stream inoculation device according to claim 3, characterized in that: The bracket (3) is a Y-shaped bracket, and the inoculant bucket (2) is symmetrically hinged on the two branches of the Y-shaped bracket through the hinge axis.