Sintering material supplementing device

Abstract

The utility model discloses a sintering material supplementing device, which relates to the field of sintering material supplementing devices and comprises a main body, a telescopic plate is fixed on one side in the main body, a first groove is arranged on the outer side of the telescopic plate, a third electric push rod is mounted at the bottom of the telescopic plate, and a fixed plate is fixed at the output end of the third electric push rod. A fixing plate is arranged on the main body, a roller is rotationally connected to the interior of the fixing plate, a heating coil is arranged in the roller, a heater is installed on one side of the fixing plate, and a controller is arranged on the side, fixedly connected with the main body, of the tail end of the heater and the tail end of the heating coil. The powder material at the top of the platform is extruded and scraped, so that the thickness of the powder material is smooth, and when the roller extrudes the powder material, the roller can rotate to a certain degree, so that each part of the surface of the roller is in contact with the powder, and the powder can be better preheated.

Description

Technical Field

[0001] The utility model relates to the field of sintering feeding devices, in particular to a sintering feeding device. Background Art

[0002] Laser 3D printing is based on digital model files and uses special bonding materials such as wax, powdered metal or plastic. After intelligent process control, the dense metal parts formed are almost mesh-like and require almost no subsequent processing, thereby achieving rapid metal parts production.

[0003] The existing patent CN220262010U discloses a sintering feeding device for a laser 3D printer. The printing platform moves down one layer to drive the first electric push rod. The first electric push rod starts to move to generate thrust and push the unloading box to move horizontally. During the pushing process, the two guide plates leave the blocking plate. At the same time, the powder additive material in the unloading box falls onto the printing platform through the two guide plates. When the first electric push rod completes a set of reciprocating motion and resets, the blocking plate blocks the two guide plates to prevent the powder additive material from continuing to fall. That is, the powder spreading and feeding operation of a layer of powder additive material is completed, the driving of the first electric push rod is stopped, and then the peripheral power cord is connected. The power reaches the heating wire through the peripheral power cord, the heating wire is energized and generates heat, and the heat is quickly The second electric push rod pushes the straight plate and the height-limiting lower pressure plate to move horizontally, scrapes and presses the powdered additive material on the printing platform, scrapes the excess powdered additive material off the printing platform and connects it, controls the thickness of the powder layer, and appropriately increases the density of the powder layer. While the height-limiting lower pressure plate scrapes and presses the powdered additive material on the printing platform, the powder layer is preheated. After the second electric push rod completes a set of reciprocating motion and resets, it stops driving the second electric push rod and cuts off the power cord of the peripheral device. At this point, a cycle working process of the sintering feeding device for the laser 3D printer is completed, and the laser 3D printer continues to operate to sinter and print the current powder layer.

[0004] When unloading materials from the unloading box of the existing device, the unloading box can only unload materials at one position and cannot unload materials evenly. Moreover, when the height-limiting lower pressure plate contacts the powder on the printing platform, the heat of the height-limiting lower pressure plate will be taken away by the powder, causing the temperature of the height-limiting lower pressure plate to drop and the powder to be heated unevenly. Utility Model Content

[0005] The purpose of the utility model is to provide a sintering feeding device in order to solve the problem that the material box can only discharge materials at one position and cannot discharge materials evenly, and when the height-limiting lower pressure plate contacts the powder on the printing platform, the heat of the height-limiting lower pressure plate will be taken away by the powder, resulting in a decrease in the temperature of the height-limiting lower pressure plate and uneven heating of the powder.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A sintering feeding device, one side inside the main body is fixed with a telescopic plate, a first groove is arranged outside the telescopic plate, a third electric push rod is installed at the bottom of the telescopic plate, the output end of the third electric push rod is fixed with a fixing plate, the third electric push rod pushes the fixing plate to move to one side, and the fixing plate drives the roller to move to one side, so as to extrude and scrape the powder material on the top of the platform, making the thickness of the powder material flat. A roller is rotatably connected inside the fixing plate, a heater heats the heating coil, so that the roller outside the heating coil is heated, and a heating coil is arranged inside the roller.

[0007] As a further scheme of the present utility model: A heater is installed on one side of the fixing plate, the heater is fixedly connected to the end of the heating coil, and a controller is arranged on one side of the main body.

[0008] As a further scheme of the present utility model: A second electric push rod is installed on the top of the telescopic plate, the output end of the second electric push rod is fixed with a feeding box. When the feeding box continuously moves to one side, the slider in the feeding box pulls the telescopic plate to expand and contract, so that the bottom of the feeding box is always in a semi-open state. Sliders are fixed at both ends of the feeding box.

[0009] As a further scheme of the present utility model: The end of the slider is slidably connected to the inside of the first groove.

[0010] As a further scheme of the present utility model: A platform is arranged inside the main body, baffles are arranged at both ends of the platform, and a first electric push rod is arranged at the bottom of the platform.

[0011] As a further scheme of the present utility model: A collection box is arranged on one side of the platform. After the laser d printer completes the printing of one layer, the platform moves down one layer, and the second electric push rod pushes the feeding box to move to one side. One side of the top of the platform is located at the bottom of the telescopic plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. By setting the second electric push rod to push the feeding box to move to one side, when the feeding box moves to one side, a part of the bottom of the feeding box will stop contacting the surface of the telescopic plate, so that the material in the feeding box drops. When the feeding box continuously moves to one side, the slider in the feeding box pulls the telescopic plate to expand and contract, so that the bottom of the feeding box is always in a semi-open state, which not only completes the powder feeding and replenishment operation of one layer of powder material, but also facilitates the uniform feeding of the feeding box;

[0014] 2. The heating coil is heated by the provided heater, causing the drum outside the heating coil to increase in temperature. The third electric push rod pushes the fixed plate to move to one side, and the fixed plate drives the drum to move to one side, squeezing and scraping the powder material on the top of the platform, making the thickness of the powder material flat. When the drum squeezes the powder material, the drum itself will rotate to a certain extent, enabling every part of the drum's surface to contact the powder, so that the powder can be better preheated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the overall internal structure of the present utility model;

[0017] Figure 3 It is a schematic diagram of the platform structure of the present utility model;

[0018] Figure 4 It is a schematic diagram of the drum structure of the present utility model.

[0019] In the figure: 1. Main body; 101. Controller; 2. Platform; 201. Baffle; 202. First electric push rod; 203. Collection box; 3. Telescopic plate; 301. First groove; 302. Second electric push rod; 303. Feeding box; 304. Slide block; 4. Third electric push rod; 401. Fixed plate; 402. Drum; 403. Heating coil; 404. Heater. SPECIFIC EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 、 2, 3, 4, in the embodiment of the present utility model, a sintering feeding device includes a main body 1. On one side inside the main body 1, a telescopic plate 3 is fixed. On the outer side of the telescopic plate 3, a first groove 301 is provided. At the bottom of the telescopic plate 3, a third electric push rod 4 is installed. The output end of the third electric push rod 4 is fixed with a fixing plate 401. The third electric push rod 4 pushes the fixing plate 401 to move to one side. The fixing plate 401 drives the roller 402 to move to one side, squeezing and scraping the powder material on the top of the platform 2 to make the thickness of the powder material flat. Inside the fixing plate 401, a roller 402 is rotatably connected. A heater 404 heats the heating coil 403 to heat the roller 402 outside the heating coil 403. Inside the roller 402, a heating coil 403 is provided. On one side of the fixing plate 401, a heater 404 is installed. The heater 404 is fixedly connected to the end of the heating coil 403. On one side of the main body 1, a controller 101 is provided;

[0022] At the top of the telescopic plate 3, a second electric push rod 302 is installed. The output end of the second electric push rod 302 is fixed with a feeding box 303. When the feeding box 303 continuously moves to one side, the slider 304 in the feeding box 303 pulls the telescopic plate 3 to expand and contract, so that the bottom of the feeding box 303 is always in a semi-open state. At both ends of the feeding box 303, sliders 304 are fixed. The ends of the sliders 304 are slidably connected inside the first groove 301;

[0023] In this embodiment: when the feeding box 303 continuously moves to one side, the slider 304 in the feeding box 303 pulls the telescopic plate 3 to expand and contract, so that the bottom of the feeding box 303 is always in a semi-open state, that is, the powder feeding and replenishing operation of one layer of powder material is completed, which is convenient for the feeding box 303 to feed evenly. The heater 404 heats the heating coil 403 to heat the roller 402 outside the heating coil 403. The third electric push rod 4 pushes the fixing plate 401 to move to one side. The fixing plate 401 drives the roller 402 to move to one side, squeezing and scraping the powder material on the top of the platform 2 to make the thickness of the powder material flat. When the roller 402 squeezes the powder material, the roller 402 itself will rotate to a certain extent, so that each part of the surface of the roller 402 contacts the powder, enabling the powder to be better preheated.

[0024] Please refer specifically to Figure 2 , 3 , 4, inside the main body 1, a platform 2 is provided. At both ends of the platform 2, baffles 201 are provided. At the bottom of the platform 2, a first electric push rod 202 is provided. On one side of the platform 2, a collection box 203 is provided. After the operation of the laser 3D printer completes one layer of printing, the platform 2 moves down one layer. The second electric push rod 302 pushes the feeding box 303 to move to one side. One side of the top of the platform 2 is located at the bottom of the telescopic plate 3;

[0025] In this embodiment: When the operation of the laser 3D printer finishes printing one layer, the platform 2 moves down one layer, and the second electric push rod 302 pushes the material feeding box 303 to move to one side. When the material feeding box 303 moves to one side, a part of the bottom of the material feeding box 303 stops contacting the surface of the telescopic plate 3, causing the material in the material feeding box 303 to fall.

[0026] Working principle: When the operation of the laser 3D printer finishes printing one layer, the platform 2 moves down one layer, and the second electric push rod 302 pushes the material feeding box 303 to move to one side. When the material feeding box 303 moves to one side, a part of the bottom of the material feeding box 303 stops contacting the surface of the telescopic plate 3, causing the material in the material feeding box 303 to fall. When the material feeding box 303 continues to move to one side, the slider 304 in the material feeding box 303 pulls the telescopic plate 3 to expand and contract, keeping the bottom of the material feeding box 303 in a semi-open state all the time, that is, the powder material spreading and replenishing operation for one layer is completed, which facilitates the uniform feeding of the material feeding box 303;

[0027] The heater 404 heats the heating coil 403, causing the roller 402 outside the heating coil 403 to heat up. The third electric push rod 4 pushes the fixed plate 401 to move to one side, and the fixed plate 401 drives the roller 402 to move to one side, squeezing and scraping the powder material on the top of the platform 2 to make the thickness of the powder material flat. When the roller 402 squeezes the powder material, the roller 402 itself will rotate to a certain extent, enabling each part of the surface of the roller 402 to contact the powder, so that the powder can be better preheated.

[0028] The above-mentioned is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A sintering feeding device, comprising a main body (1), characterized in that: A telescopic plate (3) is fixed to one side inside the main body (1), a first groove (301) is arranged on the outer side of the telescopic plate (3), a third electric push rod (4) is installed at the bottom of the telescopic plate (3), a fixed plate (401) is fixed to the output end of the third electric push rod (4), a roller (402) is rotatably connected to the inside of the fixed plate (401), and a heating coil (403) is arranged inside the roller (402).

2. A sintering feeding device according to claim 1, characterized in that: A heater (404) is installed on one side of the fixing plate (401), and the heater (404) and the end of the heating coil (403) are fixedly connected to one side of the main body (1) and a controller (101) is provided.

3. A sintering feeding device according to claim 1, characterized in that: A No. 2 electric push rod (302) is installed on the top of the telescopic plate (3), a material discharge box (303) is fixed to the output end of the No. 2 electric push rod (302), and sliders (304) are fixed to both ends of the material discharge box (303).

4. A sintering feeding device according to claim 3, characterized in that: The end of the slider (304) is slidably connected to the interior of the first groove (301).

5. The sintering feeding device according to claim 1, characterized in that: A platform (2) is arranged inside the main body (1), baffles (201) are arranged at both ends of the platform (2), and a No. 1 electric push rod (202) is arranged at the bottom of the platform (2).

6. A sintering feeding device according to claim 5, characterized in that: A collecting box (203) is provided on one side of the platform (2), and one side of the top of the platform (2) is located at the bottom of the telescopic plate (3).

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