Alloy feeder of directional solidification furnace

Abstract

The utility model relates to the technical field of alloy processing, in particular to an alloy feeder of a directional solidification furnace. The feeder comprises a plurality of feeding barrels, an alloy transition barrel, an alloy material baffle, a vacuum pipeline, a gate valve, a material shovel, a baffle and a plurality of servo motors. When alloy materials need to be added, the broken alloy materials can be placed in different charging barrels respectively, then the alloy material baffle is rotated to enable the discharging port to reach the position near the charging barrel, the position near the discharging port is opened by clicking the electromagnetic valve, and then the charging barrel lower cover is slowly opened to enable the materials to fall into the alloy transition charging barrel. And then the servo motor is started to open the gate valve to enable the alloy material to enter the material shovel, and the alloy material enters the crucible through the servo motor, so that the technical problem that the alloy material cannot be additionally added into the directional solidification furnace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy processing, and relates to an alloy feeder for a directional solidification furnace. Background Art

[0002] During the process of melting alloy in a directional solidification furnace, generally, the alloy materials are lifted onto the thermocouple protection tube, and then the thermocouple is lifted and lowered to achieve the addition of alloy materials. This method is not only troublesome, but also has certain risks, low work efficiency, small quantity of added alloy materials, and is prone to damage the temperature measurement protection tube. Summary of the Invention

[0003] To solve the above problems, the utility model provides an alloy feeder for a directional solidification furnace. The technical solution of the utility model is as follows:

[0004] An alloy feeder for a directional solidification furnace, the feeder includes a plurality of feeding cylinders, an alloy transition cylinder, an alloy material baffle, a vacuum pipeline, a plug valve, a material shovel, a baffle and a plurality of servo motors. Its specific structure is as follows:

[0005] The feeding cylinders are placed above the alloy transition cylinder, and an alloy material baffle is arranged in the middle for blocking. There is a discharge port above the alloy transition cylinder; the alloy material baffle is connected to servo motor a, each feeding cylinder is connected to an electromagnetic valve, and each feeding cylinder is provided with a lower cover at the bottom; a vacuum pipeline is arranged on the wall of the alloy transition cylinder, a baffle and a plug valve are arranged at the bottom of the alloy transition cylinder, the plug valve is connected to the alloy transition cylinder through bolts, the plug valve is connected to servo motor b, the opening of the plug valve is realized by servo motor b, and a material shovel is arranged below the alloy transition cylinder, and the material shovel is connected to servo motor c.

[0006] In the above-mentioned alloy feeder for a directional solidification furnace, the preferred scheme is that 4 feeding cylinders are provided, and the feeding cylinders are independent of each other, which can meet the simultaneous addition of 4 kinds of alloy scraps.

[0007] In the above-mentioned alloy feeder for a directional solidification furnace, the preferred scheme is that each feeding cylinder is also provided with an upper cover at the top. A rubber ring is used between the upper cover and the feeding cylinder to ensure airtightness, and the upper cover and the feeding cylinder are fixed by a buckle, which can ensure the airtightness of the feeding cylinder during vacuum pumping and prevent other gas components from being doped into the material.

[0008] In the above-mentioned alloy feeder for a directional solidification furnace, the preferred scheme is that the lower cover of the feeding cylinder is tamped against the feeding cylinder by a small cylinder, and a rubber ring is used for sealing at the contact surface between the lower cover and the feeding cylinder, which can not only ensure airtightness, but also prevent hard contact between stainless steels, resulting in poor sealing.

[0009] For the above-mentioned alloy feeder of the directional solidification furnace, its preferred solution is that the feeding cylinder is placed above the alloy transition cylinder, and an alloy material baffle is arranged in the middle for blocking. Specifically, the feeding cylinder is welded to the upper cover of the alloy material baffle, and then directly fixed to the alloy transition cylinder through rubber rings and bolts.

[0010] For the above-mentioned alloy feeder of the directional solidification furnace, its preferred solution is that the connection mode between the alloy material baffle and the servo motor a is that the rod part of the servo motor a is welded to the lower part of the alloy material baffle. The rotation of the alloy material baffle can be realized by rotating the servo motor a, and the range of movement determines the rotation angle according to the positioning switch 15 of the alloy material baffle to achieve the addition of broken materials.

[0011] For the above-mentioned alloy feeder of the directional solidification furnace, its preferred solution is that the vacuum pipeline uses a mechanical pump and a Roots pump to evacuate the vacuum, ensuring that air is reduced during the addition of alloy broken materials, unnecessary gas components are increased, and the vacuum degree can reach 1 Pa.

[0012] For the above-mentioned alloy feeder of the directional solidification furnace, its preferred solution is that the material shovel performs the operations of advancing and flipping through the servo motor c, and then realizes precise positioning through the limit switch.

[0013] For the above-mentioned alloy feeder of the directional solidification furnace, its preferred solution is that the baffle on the plug valve prevents the alloy broken materials from falling into the material shovel instantaneously. While playing a buffering role, it enables the alloy material broken materials to fall slowly and smoothly along the baffle. The small slope set on the baffle enables the alloy broken materials to slowly enter the hopper at one end of the baffle during the opening of the baffle. There is a certain arc at the front end of the material shovel to prevent the material from falling into the material shovel and dropping outside.

[0014] The usage method of the present utility model is as follows:

[0015] Put the alloy broken materials into the feeding cylinder, then fasten the upper cover, and then start the servo motor a to realize the rotation of the alloy material baffle. When rotating to near the feeding cylinder, it is precisely positioned through the positioning switch, and then the lower cover of the feeding cylinder is opened to make the alloy material fall into the alloy transition cylinder. Then start the vacuum pumping. When the vacuum reaches the same as that of the melting chamber, start the servo motor b to open the plug valve to make the alloy broken materials fall into the material shovel. Then make the material shovel advance to the designated position through the servo motor c, and then start the flipping to make the alloy material fall into the crucible. The addition of the alloy material is realized.

[0016] The advantages and beneficial effects of the present utility model are:

[0017] The advantage of the present invention is to realize the addition of alloy broken materials without destroying the vacuum of the melting chamber.

[0018] The advantages of the present invention are that through the alloy barrel and the silo, a set of continuous mechanical addition of scrap materials can be achieved by means of a material shovel, which can reduce human interference and save labor costs, and ensure the safety and accuracy of adding alloy scrap materials.

[0019] The advantages of the present invention solve the difficulty of adding alloy scrap materials to the directional solidification furnace, making the function of the alloy secondary addition material widely applied. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model;

[0021] In the figure: 1 - feeding barrel; 2 - alloy transition barrel; 3 - alloy material baffle; 4 - vacuum pipeline; 5 - flap valve; 6 - material shovel; 7 - baffle; 8 - servo motor a; 9 - servo motor b; 10 - servo motor c; 11 - lower cover of the feeding barrel; 12 - discharge port; 13 - solenoid valve; 14 - upper cover; 15 - positioning switch. Detailed Embodiment

[0022] The following further describes the present utility model in detail in conjunction with the drawings of the specification and the specific embodiments. The preferred embodiments described herein are only for explaining and illustrating the present utility model, and are not used to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model are included in the present utility model. Embodiment 1

[0023] A directional solidification furnace alloy feeder includes 4 feeding barrels 1 welded to the upper cover 14 of the alloy material baffle 3, and then directly fixed to the alloy transition barrel 2 through rubber rings and bolts. There is a discharge port 6 above the alloy transition barrel 2;

[0024] The lower part of the alloy material baffle 3 is connected to the rod part of the servo motor a 8. Each feeding barrel 1 is connected to a solenoid valve 13, and each feeding barrel 1 is provided with a lower cover 11 of the feeding barrel at the bottom; the lower cover 11 of the feeding barrel is tamped against the feeding barrel 1 by a small cylinder, and the contact surface between the lower cover 11 of the feeding barrel and the feeding barrel 1 is sealed by a rubber ring; each feeding barrel 1 is also provided with an upper cover at the top, and the upper cover and the feeding barrel 1 ensure airtightness through a rubber ring, and the upper cover and the feeding barrel 1 are fixed by a buckle; there is a vacuum pipeline 4 on the barrel wall of the alloy transition barrel 2, and the vacuum pipeline 4 is connected to the pump group, and is hermetically combined with a corrugated hose soft connection and a sealing rubber ring in the middle. In this way, it can not only ensure that the vibration of the pump group does not affect the feeding bucket but also ensure airtightness so that the vacuum can be pumped to 1 Pa; there is a baffle 7 and a flap valve 5 at the bottom of the alloy transition barrel 2. The flap valve 5 is connected to the alloy transition barrel 2 through bolts, the flap valve 5 is connected to the servo motor b 12, and there is a material shovel 6 below the alloy transition barrel 2, and the material shovel is connected to the servo motor c 10.

[0025] In this embodiment, the size of the feeding cylinder 1 is 30 mm in diameter and 40 mm in height. The rotation of the material is also crucial. The inner surface of the feeding cylinder 1 is entirely made of stainless steel to ensure that alloy scraps do not adhere. The alloy transition cylinder 2 is made of stainless steel, with a smooth surface and a certain slope to prevent the pollution of alloy scraps and ensure that the alloy scraps cannot get stuck in the alloy transition cylinder 2. The alloy material baffle 3 is rotated by the servo motor a8 and operates at a certain speed and in a certain order, and then is positioned by the positioning switch 15 so that the alloy scraps fall into the alloy transition cylinder 2.

[0026] In this embodiment, the connection between the material shovel 6 and the servo motor c10 is achieved by means of a bearing, a 20-mm-diameter lead screw, and a sealing rubber ring, which can ensure both the stability and the airtightness of the material shovel. The opening / closing between the servo motor b9 and the plug valve 5 is adjusted by the signal of the solenoid valve. When the opening signal is sent to the solenoid valve, the solenoid valve transmits the signal to the servo motor b9 to move, and then the plug valve 5 is opened, allowing the alloy scraps to fall into the material shovel 6. When it is necessary to close the plug valve 5, first, the closing signal is sent to the solenoid valve, the solenoid valve transmits the signal to the servo motor c1 to move, and then the plug valve 5 is closed.

[0027] In this embodiment, the front end of the material shovel 6 has a certain curvature to prevent the material from falling outside the material shovel 6 when it falls into the material shovel 6. The speed of the material shovel 6 is also variable. When the material shovel 6 moves near the crucible, the speed slows down until it stops, and then the flipping speed is also very slow to prevent the material from falling into other positions.

[0028] In this embodiment, all are fixed by screws, and sealing rubber rings are added between different components to ensure the airtightness of the equipment.

Claims

1. A directional solidification furnace alloy feeder, characterized in that, The feeder includes a plurality of feeding cylinders, an alloy transition cylinder, an alloy material baffle, a vacuum pipeline, a flap valve, a material shovel, a baffle, and a plurality of servo motors. Its specific structure is as follows: The feeding cylinders are placed above the alloy transition cylinder, and an alloy material baffle is arranged in the middle for blocking. There is a discharge port above the alloy transition cylinder; the alloy material baffle is connected to servo motor a, each feeding cylinder is connected to an electromagnetic valve, and a lower cover of the feeding cylinder is provided at the bottom of each feeding cylinder; a vacuum pipeline is provided on the wall of the alloy transition cylinder, a baffle and a flap valve are provided at the bottom of the alloy transition cylinder, the flap valve is connected to the alloy transition cylinder by bolts, the flap valve is connected to servo motor b, and a material shovel is provided below the alloy transition cylinder, and the material shovel is connected to servo motor c.

2. The alloy feeder of the directional solidification furnace according to claim 1, characterized in that, Four feeding cylinders are provided, and the feeding cylinders are independent of each other.

3. The alloy feeder of a directional solidification furnace according to claim 1, characterized in that, Each feeding cylinder is also provided with an upper cover. A rubber ring is used between the upper cover and the feeding cylinder to ensure airtightness, and the upper cover and the feeding cylinder are fixed by a buckle.

4. The alloy feeder of the directional solidification furnace according to claim 1, wherein The lower cover of the feeding cylinder is pressed against the feeding cylinder by a small cylinder, and a rubber ring is used for sealing at the contact surface between the lower cover and the feeding cylinder.

5. The alloy feeder of a directional solidification furnace according to claim 1, characterized in that, The feeding cylinders are placed above the alloy transition cylinder, and an alloy material baffle is arranged in the middle for blocking. Specifically, the feeding cylinders are welded to the upper cover of the alloy material baffle, and then directly fixed to the alloy transition cylinder by a rubber ring and bolts.

6. The alloy feeder of a directional solidification furnace according to claim 1, characterized in that The connection mode of the alloy material baffle to servo motor a is that the rod part of servo motor a is welded to the lower part of the alloy material baffle.

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