Manual casting ladle stream inoculation device

Abstract

The utility model provides a manual casting ladle stream inoculation device, belongs to the technical field of casting ladle devices, and solves the problem that in the prior art, an inoculation mechanism can block the dumping process of a transfer ladle. The device comprises a casting ladle and a casting ladle frame, the casting ladle is rotationally connected with the casting ladle frame through a pin shaft, the pin shaft is hinged to a fixed connecting rod, the fixed connecting rod is provided with a movable plug pin which movably penetrates through the fixed connecting rod and extends into the pin shaft, the fixed connecting rod is hinged to a first transmission connecting rod, and the first transmission connecting rod is hinged to at least two follow-up connecting rods; wherein one follow-up connecting rod is hinged to the casting ladle frame, a second transmission connecting rod is hinged between the two follow-up connecting rods, an inoculant storage device is arranged on the second transmission connecting rod, and the inoculant storage device is connected with a discharging pipe facing the casting ladle discharging opening. When molten iron needs to be transferred to the casting ladle, the movable plug pin is pulled out, the four-connecting-rod mechanism and the fixed connecting rod can deflect in the opposite direction to be away from the casting ladle discharging opening, and therefore the nucleating agent storage device is prevented from stopping the transfer ladle from pouring the molten iron.

Description

Technical Field

[0001] The utility model belongs to the technical field of ladle devices, in particular to a manual ladle flow inoculation device. Background Art

[0002] In the casting of large castings, the production of ductile iron and gray iron parts requires inoculation to improve the intrinsic quality of the castings. Inoculation refers to the process of adding a small amount of heterogeneous nucleation material to the liquid metal during the crystallization process to increase the crystal core, optimize the graphite morphology, and refine the grains. To produce high-quality castings, it is crucial to control the graphite morphology and matrix metallographic structure formed when the cast iron solidifies. Inoculation is one of the most important links in the cast iron production process. Good inoculation can make the cast iron have a good metallographic structure, thereby improving the mechanical properties of the casting and improving the processing performance.

[0003] At present, the furnace inoculation method still occupies the mainstream in the inoculation method of casting, but the utilization rate of the inoculant is low, the inoculant decays quickly, and the inoculation effect is not ideal; the inoculation effect of the flow inoculation method is better. During the pouring process, the inoculant is added to the molten iron flow by airflow or gravity. The utilization rate of the inoculant is high, there is no decay, and the inoculation effect is good. The existing flow inoculation device, such as a ladle flip-following inoculation mechanism disclosed in the patent with publication number CN212885009U, can always point to the pouring cup as the ladle flips during the pouring process, and can achieve uniform feeding. The inoculant flows into the mold evenly with the molten iron, and has the same inoculation effect as the automatic pouring machine. However, this inoculation mechanism will block the dumping process of the transfer ladle when transferring molten iron to the ladle, which makes it inconvenient to transfer molten iron from the transfer ladle to the ladle, affecting production efficiency. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a manual ladle flow inoculation device, in which a fixed connecting rod is fixed on the pin shaft by a movable latch, and during the ladle flipping process, the discharge pipe of the inoculant is always aligned with the ladle discharge port by a four-bar linkage to ensure the inoculation effect; when it is necessary to transfer molten iron to the ladle, the movable latch is pulled out so that the four-bar linkage and the fixed connecting rod can be deflected in the opposite direction away from the ladle discharge port, thereby preventing the inoculant storage device from blocking the transfer ladle from dumping molten iron.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A manual ladle flow inoculation device comprises a ladle and a ladle stand, pins are arranged on both sides of the ladle, the ladle is rotatably connected to the ladle stand through the pins, the pins are hinged with a fixed connecting rod, the fixed connecting rod is provided with a movable pin that movably penetrates the fixed connecting rod and extends into the pin, a vertically arranged first transmission connecting rod is hinged on the fixed connecting rod, at least two follower connecting rods arranged at intervals up and down are hinged on the first transmission connecting rod, one of the follower connecting rods is hinged with the ladle stand, a vertically arranged second transmission connecting rod is hinged between the two follower connecting rods, an inoculant storage device is arranged on the second transmission connecting rod, and the inoculant storage device is connected with a discharge pipe facing the ladle discharge port.

[0007] Preferably, a limiting hook for hooking the first transmission connecting rod is hinged on the ladle stand.

[0008] Preferably, a limiting block abutting against the fixed connecting rod is fixedly provided on the pin shaft.

[0009] Preferably, the inoculant storage device comprises a storage barrel, a stirring shaft is arranged in the storage barrel, a stirring blade is arranged on the stirring shaft, and the stirring shaft is connected to a motor.

[0010] Preferably, the lower end of the stirring shaft is connected to a spiral feeding rod extending into the discharge pipe.

[0011] Preferably, a switch mechanism is provided on the discharge pipe, and the switch mechanism includes a switch mounting seat fixedly mounted on the discharge pipe, a control rod is movably provided on the switch mounting seat and horizontally passes through the switch mounting seat and the discharge pipe, a channel communicating with the discharge pipe is vertically opened on the control rod, a limiting groove is opened on one side of the switch mounting seat, and a gear rod is connected to the control rod and cooperates with the limiting groove to keep the channel in a vertical state.

[0012] Preferably, a limit rod is provided at one end of the control rod away from the shift rod.

[0013] Preferably, a flow regulating mechanism is provided on the discharge pipe, and the flow regulating mechanism includes an adjusting mounting seat fixedly sleeved on the discharge pipe, a screw is provided with a transverse thread in the adjusting mounting seat, and the end of the screw is connected to a plug that movably extends into the discharge pipe.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] The fixed connecting rod is fixed on the pin shaft by a movable latch. During the turning process of the ladle, the discharge pipe of the inoculant is always aligned with the discharge port of the ladle through the four-bar mechanism to ensure the inoculation effect. When it is necessary to transfer molten iron to the ladle, the movable latch is pulled out so that the four-bar mechanism and the fixed connecting rod can be deflected in the opposite direction away from the discharge port of the ladle, thereby preventing the inoculant storage device from blocking the transfer ladle from dumping molten iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a three-dimensional structure provided for an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of a three-dimensional structure from another perspective provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the structure of the inoculant storage device provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the switch mechanism structure provided by an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the flow regulating mechanism structure provided in an embodiment of the utility model.

[0022] Description of the drawings: 1- ladle; 2- pin; 3- hook; 4- handle; 5- ladle stand; 6- follower connecting rod; 7- first transmission connecting rod; 8- inoculant storage device; 801- motor; 802- storage barrel; 803- stirring blade; 804- stirring shaft; 805- spiral feeding rod; 9- second transmission connecting rod; 10- switch mechanism; 1001- switch mounting seat; 1002- control lever; 1003- limit groove; 1004- gear lever; 1005- channel; 1006- limit rod; 11- flow regulating mechanism; 1101- screw rod; 1102- adjustment mounting seat; 1103- plug; 12- discharge pipe; 13- limit block; 14- limit hook; 15- fixed connecting rod; 16- movable latch. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Combine the following Figure 1-Figure 5 The utility model is described in detail.

[0027] Example

[0028] A manual ladle flow inoculation device comprises a ladle 1 and a ladle stand 5, pins 2 are arranged on both sides of the ladle 1, the ladle 1 is rotatably connected to the ladle stand 5 through the pins 2, a fixed link 15 is hinged to the pin 2, a movable pin 16 that movably penetrates the fixed link 15 and extends into the pin 2 is arranged on the fixed link 15, a vertically arranged first transmission link 7 is hinged to the fixed link 15, at least two upper and lower spaced follower links 6 are hinged to the first transmission link 7, one of the follower links 6 is hinged to the ladle stand 5, a vertically arranged second transmission link 9 is hinged between the two follower links 6, an inoculant storage device 8 is arranged on the second transmission link 9, and the inoculant storage device 8 is connected to a discharge pipe 12 facing the discharge port of the ladle 1. The ladle stand 5 is hooked with the pins 2 by a hook 3 to realize the rotation of the ladle 1; a handle 4 is arranged at the back of the ladle 1 to facilitate manual control of the flipping of the ladle 1.

[0029] The first transmission link 7, the second transmission link 9 and the two follower links 6 form a four-bar linkage to control the inoculant storage device 8 and the discharge pipe 12 to adjust the position as the ladle 1 turns over, ensuring that the inoculant output by the discharge pipe 12 is added to the molten iron synchronously with the pouring process, thereby enhancing the inoculation effect of the molten iron, improving the quality stability of the product, improving the utilization rate of the inoculant, and reducing the production cost of the product. When it is necessary to transfer the molten iron to the ladle 1, the movable latch 16 is pulled out, so that the four-bar linkage and the fixed link 15 can be deflected in the opposite direction away from the discharge port of the ladle 1, so as to avoid the inoculant storage device and the discharge pipe 12 blocking the transfer ladle from dumping the molten iron.

[0030] The four-bar linkage and the fixed link 15 are made of aluminum alloy, which can reduce the weight of the entire device and the labor intensity during manual transportation; the outer shell of the discharge pipe 12 and the inoculant storage device 8 is made of stainless steel to increase its service life in a high temperature environment.

[0031] The ladle frame 5 is hinged with a limit hook 14 for hooking the first transmission link 7. After the four-bar linkage and the fixed link 15 are deflected in the opposite direction, the limit hook 14 can be turned over and hooked on one side of the first transmission link 7 to keep the four-bar linkage and the fixed link 15 immovable.

[0032] The pin shaft 2 is fixedly provided with a stopper 13 that abuts against the fixed connecting rod 15. The stopper 13 keeps the hole on the fixed connecting rod 15 aligned with the hole on the pin shaft 2, facilitating the quick insertion of the movable latch 16 into the pin shaft 2, and also reducing the bearing strength of the movable latch 16.

[0033] The inoculant storage device 8 includes a storage barrel 802, in which a stirring shaft 804 is provided, on which a stirring blade 803 is provided, and the stirring shaft 804 is connected to a motor 801. The motor 801 drives the stirring blade 803 to rotate through the stirring shaft 804 to stir the inoculant, ensuring that the components in the inoculant are evenly dispersed before being added to the molten iron.

[0034] The lower end of the stirring shaft 804 is connected with a spiral feeding rod 805 extending into the discharge pipe 12. The spiral feeding rod 805 conveys the inoculant in the storage barrel 802, and the motor 801 is a speed regulating motor, which can control the conveying amount of the inoculant.

[0035] The discharge pipe 12 is provided with a switch mechanism 10, which includes a switch mounting seat 1001 fixedly sleeved on the discharge pipe 12, a control rod 1002 movably provided on the switch mounting seat 1001 and horizontally penetrating the switch mounting seat 1001 and the discharge pipe 12, a channel 1005 communicating with the discharge pipe 12 is vertically provided on the control rod 1002, a limiting groove 1003 is provided on one side of the switch mounting seat 1001, and a shift rod 1004 is connected to the control rod 1002 to cooperate with the limiting groove 1003 to keep the channel 1005 in a vertical state. The switch mechanism 10 makes the channel 1005 staggered with the discharge pipe 12 by the lateral movement of the control rod 1002, so as to close the discharge pipe 12; after the shift rod 1004 enters the limiting groove 1003, the channel 1005 keeps the vertical state aligned with the discharge pipe 12, so as to open the discharge pipe 12.

[0036] A limiting rod 1006 is provided at one end of the control rod 1002 away from the shift rod 1004. The limiting rod 1006 can prevent the control rod 1002 from being pulled out of the switch mounting seat 1001 toward one end.

[0037] The discharge pipe 12 is provided with a flow regulating mechanism 11, which includes an adjusting mounting seat 1102 fixedly sleeved on the discharge pipe 12, a screw rod 1101 is provided in a transverse thread in the adjusting mounting seat 1102, and a plug 1103 movably inserted into the discharge pipe 12 is connected to the end of the screw rod 1101. The flow regulating mechanism 11 controls the cross-sectional area of ​​the discharge pipe 12 by adjusting the screwing degree of the screw rod 1101 and the depth of the plug 1103 inserted into the discharge pipe 12, thereby realizing the adjustment of the flow rate, and cooperates with the above-mentioned spiral feeding rod 805 to more accurately adjust the delivery amount of the inoculant.

[0038] The switch mechanism 10 and the flow regulating mechanism 11 are both connected to the second transmission connecting rod 9 via a connecting rod to enhance the stability of the switch mechanism 10 and the flow regulating mechanism 11 .

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manual ladle flow inoculation device, comprising a ladle (1) and a ladle stand (5), wherein pins (2) are arranged on both sides of the ladle (1), and the ladle (1) is rotatably connected to the ladle stand (5) via the pins (2), characterized in that: The pin shaft (2) is hinged with a fixed link (15), and a movable pin (16) is arranged on the fixed link (15) and movably penetrates the fixed link (15) and extends into the pin shaft (2). A vertically arranged first transmission link (7) is hinged on the fixed link (15), and at least two follower links (6) are hinged on the first transmission link (7) and are arranged at intervals up and down, one of the follower links (6) is hinged to the ladle frame (5), and a vertically arranged second transmission link (9) is hinged between the two follower links (6), and an inoculant storage device (8) is arranged on the second transmission link (9), and the inoculant storage device (8) is connected to a discharge pipe (12) facing the discharge port of the ladle (1).

2. A manual ladle inoculation device according to claim 1, characterized in that: A limiting hook (14) for hooking the first transmission connecting rod (7) is hingedly connected to the ladle frame (5).

3. A manual ladle inoculation device according to claim 1, characterized in that: A limiting block (13) abutting against a fixed connecting rod (15) is fixedly arranged on the pin shaft (2).

4. A manual ladle inoculation device according to claim 1, characterized in that: The inoculant storage device (8) comprises a storage barrel (802), a stirring shaft (804) is arranged in the storage barrel (802), a stirring blade (803) is arranged on the stirring shaft (804), and the stirring shaft (804) is connected to a motor (801).

5. A manual ladle inoculation device according to claim 4, characterized in that: The lower end of the stirring shaft (804) is connected to a spiral feeding rod (805) extending into the discharge pipe (12).

6. A manual ladle inoculation device according to claim 1, characterized in that: The discharge pipe (12) is provided with a switch mechanism (10), the switch mechanism (10) comprising a switch mounting seat (1001) fixedly sleeved on the discharge pipe (12), a control rod (1002) movably provided on the switch mounting seat (1001) and horizontally penetrating the switch mounting seat (1001) and the discharge pipe (12), a channel (1005) communicating with the discharge pipe (12) being vertically provided on the control rod (1002), a limiting groove (1003) being provided on one side of the switch mounting seat (1001), and a shift rod (1004) being connected to the control rod (1002) and cooperating with the limiting groove (1003) to keep the channel (1005) in a vertical state.

7. A manual ladle inoculation device according to claim 6, characterized in that: A limit rod (1006) is provided at one end of the control rod (1002) away from the shift rod (1004).

8. The manual ladle inoculation device according to claim 1, characterized in that: The discharge pipe (12) is provided with a flow regulating mechanism (11), and the flow regulating mechanism (11) comprises an adjusting mounting seat (1102) fixedly sleeved on the discharge pipe (12), a screw rod (1101) being transversely threadedly arranged in the adjusting mounting seat (1102), and a plug (1103) movably extending into the discharge pipe (12) being connected to the end of the screw rod (1101).

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