Powder recovery device with screening function for 3D printing equipment

Abstract

The powder recovery device with the screening function for the 3D printing equipment comprises a screening box, a cylindrical groove is formed in the screening box, a feeding hopper is fixedly connected to the left side of the screening box, and the bottom end of the feeding hopper penetrates through the screening box and extends into the cylindrical groove; a driving motor is fixedly mounted on the front face of the screening box, and an output shaft of the driving motor penetrates through the screening box and extends into the cylindrical groove. According to the metal powder screening device, powder entering the cylindrical groove is screened through clockwise rotation of the multiple sets of net plates in the cylindrical groove, metal powder can penetrate through the net plates to be discharged through the powder discharging pipe, and waste residues in the powder can be carried by the net plates to reach the waste residue discharging pipe to be discharged out of the cylindrical groove to be separated; and then the powder is separated again through a sieve plate, waste residues are discharged, dust generated by the powder is adsorbed through a purification assembly, and therefore automatic screening of the powder is achieved, blockage is not prone to being generated, and continuous operation can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial 3D printing technical field more specifically, relate to a kind of powder recovery device with screening function for 3D printing equipment. BACKGROUND

[0002] 3D printing, a kind of rapid prototyping technology, also called additive manufacturing, is a kind of technology based on digital model file, using powder-like metal or plastic and other materials that can be bonded, by layer-by-layer printing to build objects, 3D printing is usually realized by digital technology material printer, and is often used in mold manufacturing, industrial design and other fields to manufacture models, and gradually used for direct manufacturing of some products, there are parts printed by using this technology, and the technology is applied in jewelry, footwear, industrial design, architecture, engineering and construction, automobile, aerospace, dental and medical industry, education, geographic information system, civil engineering, gun and other fields, and in fact, it is a kind of rapid prototyping technology using high-energy beam such as laser and electron beam.

[0003] When recycling used powder, screen is needed to recycle and remove metal and metal oxide inclusions, foreign impurities and the like, and metal impurities on the screen need to be cleaned manually every certain period of time, otherwise metal impurities are easy to block a part of screen holes, affecting the efficiency of screening metal powder and impurities, therefore, the person skilled in the art provides a kind of powder recovery device for 3D printing equipment. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model aims to provide a kind of powder recovery device with screening function for 3D printing equipment to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A kind of powder recovery device with screening function for 3D printing equipment, including screening box, the inside of the screening box is provided with cylindrical groove, the left side of the screening box is fixedly connected with feed hopper, the bottom of the feed hopper penetrates the screening box and extends to the inside of cylindrical groove, the front of the screening box is fixedly installed with driving motor, the output shaft of the driving motor penetrates the screening box and extends to the inside of cylindrical groove, the output shaft of the driving motor is fixedly connected with the screen plate that is uniformly distributed, the top of the screening box is provided with purification assembly, the inner wall of the screening box is fixedly connected with powder discharge pipe and waste residue discharge pipe, the inner wall of the screening box is installed with screen plate, the right side of the screen plate penetrates and extends to the right side of the screening box, the screen plate is located at the bottom of waste residue discharge pipe, the left side of the screening box is provided with recovery groove.

[0007] As the further description of the above technical scheme: the front surface of the screening box is fixedly provided with a control panel, and the purification assembly and the driving motor are electrically connected with the control panel.

[0008] As the further description of the above technical scheme: the bottom of the screen plate is fixedly provided with a vibration motor, and the vibration motor is electrically connected with the control panel.

[0009] As the further description of the above technical scheme: the purification assembly comprises a mounting seat, the mounting seat is detachably connected to the top of the screening box, the bottom of the mounting seat is communicated with the inside of the cylindrical groove, the bottom of the screening box is fixedly provided with two fans, the top of the fan is provided with a mounting rack, the mounting rack is detachably connected to the inner wall of the mounting seat, and the mounting rack is sequentially provided, from top to bottom, with an activated carbon plate and a molecular sieve.

[0010] As the further description of the above technical scheme: the inner wall of the mounting seat is connected with a barrier net, and the barrier net is located at the top of the cylindrical groove.

[0011] As the further description of the above technical scheme: the three side edges of the screen plate, away from the output shaft of the driving motor, are slidably connected with the inner wall of the cylindrical groove.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] In the present application, a plurality of screen plates are arranged to rotate clockwise in the cylindrical groove to screen the powder entering the inside of the cylindrical groove, so that the metal powder can pass through the screen plate and be discharged through the powder discharge pipe, while the waste residue in the powder is carried by the screen plate to rotate to the waste residue discharge pipe to be discharged from the cylindrical groove to realize separation, and then the screen plate is used to realize reseparation and discharge of the waste residue, and the purification assembly is used to adsorb and treat the dust generated by the powder, so that automatic screening of the powder is realized, and the powder is not easy to be blocked and can realize continuous operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective structural schematic view of the present application;

[0015] Figure 2 It is a front view sectional structural schematic view of the present application;

[0016] Figure 3 It is a Figure 2 It is an enlarged structural schematic view of position A in the present application.

[0017] Explanation of reference numerals in the drawing:

[0018] 1, screening box; 2, cylindrical groove; 3, feed hopper; 4, drive motor; 5, screen plate; 6, purification assembly; 601, mounting seat; 602, fan; 603, mounting bracket; 604, activated carbon plate; 605, molecular sieve; 7, powder discharge pipe; 8, waste residue discharge pipe; 9, screen plate; 10, recovery tank; 11, control panel; 12, vibration motor; 13, barrier net. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0020] Please refer to Figures 1 to 3 The utility model discloses a powder recovery device with screening function for 3D printing equipment, including screening box 1, the inside of screening box 1 is set up cylindrical groove 2, the left side of screening box 1 is fixedly connected with feed hopper 3, the bottom of feed hopper 3 penetrates screening box 1 and extends to the inside of cylindrical groove 2, the front of screening box 1 is fixedly installed with drive motor 4, the output shaft of drive motor 4 penetrates screening box 1 and extends to the inside of cylindrical groove 2, the output shaft of drive motor 4 is fixedly connected with the screen plate 5 of uniform distribution, screening box 1 is provided with purification assembly 6 on the top, the inner wall of screening box 1 is fixedly connected with powder discharge pipe 7 and waste residue discharge pipe 8, screening box 1 is installed with screen plate 9 on the inner wall, the right side of screen plate 9 penetrates and extends to the right side of screening box 1, screen plate 9 is located at the bottom of waste residue discharge pipe 8, the left side of screening box 1 is set up recovery tank 10.

[0021] Purification assembly 6 includes mounting seat 601, mounting seat 601 is detachably connected at the top of screening box 1, the bottom of mounting seat 601 is communicated with the inside of cylindrical groove 2, two fans 602 are fixedly installed at the bottom of screening box 1, the top of fan 602 is provided with mounting bracket 603, mounting bracket 603 is detachably connected on the inner wall of mounting seat 601, activated carbon plate 604 and molecular sieve 605 are sequentially installed in mounting bracket 603 from top to bottom;The three side edges of screen plate 5 away from the output shaft of drive motor 4 are all slidably connected with the inner wall of cylindrical groove 2.

[0022] The powder generated in the operation process of the 3D printing equipment needs to be recycled, and the user controls the driving motor 4 and the purification assembly 6 to work, the driving motor 4 drives a plurality of groups of net plates 5 fixedly connected therewith to rotate synchronously, the side edges of the net plates 5 are attached to the inner walls of the cylindrical grooves 2 to form a plurality of cavities, the user pours the powder into the feeding hopper 3, the material entering the feeding hopper 3 slides into the interiors of the cylindrical grooves 2, at this time, the collision causes the dust in the material to begin to diffuse, and the fan 602 in the purification assembly 6 generates suction to cause the mounting seat 601 to enter the dust in the interiors of the cylindrical grooves 2 into the interior of the mounting seat 601, and then the airflow is discharged after being adsorbed by the activated carbon plate 604 and the molecular sieve 605 in the mounting frame 603, so that the dust is blocked and the airflow is purified, and then the powder carrying waste residues is in the interiors of the cylindrical grooves 2, the net plates 5 rotate clockwise and contact the entering powder, the mesh of the net plates 5 is sufficient to allow the powder to pass through, and the waste residues in the powder cannot penetrate the net plates 5 and rotate clockwise in the cavities between the net plates 5, the metal powder is discharged through the powder discharge pipe 7, and the waste residues are rotated clockwise to the waste residue discharge pipe 8 and are also discharged downward, the waste residues in the waste residue discharge pipe 8 carry the powder to the top of the sieve plate 9, the inclined sieve plate 9 discharges the waste residues to the screening box 1, and the powder in the waste residues falls to the bottom of the screening box 1 and is discharged through the recycling groove 10.

[0023] In the utility model, through setting multiple groups of net plates 5, the powder entering the interiors of the cylindrical grooves 2 is screened, so that the metal powder can penetrate the net plates 5 and be discharged through the powder discharge pipe 7, and the waste residues in the powder are carried by the net plates 5 and discharged to the waste residue discharge pipe 8 after the rotating stage, so that the powder is separated from the cylindrical grooves 2, then is separated again by the sieve plate 9 and discharged, and the dust generated by the powder is adsorbed by the purification assembly 6, so that the powder is automatically screened, the clogging is not easy to occur, and the continuous operation can be realized.

[0024] Please refer to Figure 1 Among them: the front of the screening box 1 is fixedly installed with a control panel 11, and the purification assembly 6 and the driving motor 4 are electrically connected with the control panel 11.

[0025] In the utility model, the control panel 11 can be set to make the user more simple and convenient to control the device, so that the steps required by the user to operate are reduced, and the recycling efficiency of the powder is improved.

[0026] Please refer to Figure 2 Among them: the bottom of the sieve plate 9 is fixedly installed with a vibration motor 12, and the vibration motor 12 is electrically connected with the control panel 11.

[0027] In the equipment operation process, the user can control the operation of the vibration motor 12, the vibration motor 12 drives the sieve plate 9 fixedly connected with the vibration motor 12 to vibrate, so that the material discharged through the waste residue discharge pipe 8 is not easy to accumulate, and rapid sliding can be realized.

[0028] Please refer to Figure 2 The inner wall of the mounting seat 601 is connected with a barrier net 13, and the barrier net 13 is located at the top of the cylindrical groove 2.

[0029] In the utility model, the setting of the barrier net 13 can avoid the waste residue between the multiple groups of net plates 5 from entering the inside of the mounting seat 601 when moving to the bottom of the mounting seat 601, and the barrier net 13 cannot block the dust so that the dust can normally pass through.

[0030] The above is only a preferred specific embodiment of the utility model; however, the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the improved conception of the utility model within the technical range disclosed by the utility model, and all of them should be covered in the protection scope of the utility model.

Claims

1. A powder recycling device for a 3D printing equipment with screening function, comprising a screening box (1), characterized in that: The inside of the screening box (1) is provided with a cylindrical groove (2), the left side of the screening box (1) is fixedly connected with a feed hopper (3), the bottom end of the feed hopper (3) penetrates the screening box (1) and extends to the inside of the cylindrical groove (2), the front of the screening box (1) is fixedly installed with a driving motor (4), the output shaft of the driving motor (4) penetrates the screening box (1) and extends to the inside of the cylindrical groove (2), a plurality of screen plates (5) are fixedly connected on the output shaft of the driving motor (4), the top of the screening box (1) is provided with a purification assembly (6), the inner wall of the screening box (1) is fixedly connected with a powder discharge pipe (7) and a waste residue discharge pipe (8), a screen plate (9) is installed on the inner wall of the screening box (1), the right side of the screen plate (9) penetrates and extends to the right side of the screening box (1), the screen plate (9) is located at the bottom of the waste residue discharge pipe (8), and a recovery groove (10) is formed in the left side of the screening box (1).

2. The powder recycling device with a screening function for a 3D printing equipment according to claim 1, characterized in that: The front of the screening box (1) is fixedly installed with a control panel (11), and the purification assembly (6) and the driving motor (4) are electrically connected with the control panel (11). 3.The powder recycling device with a screening function for a 3D printing device according to claim 2, characterized in that: The bottom of the screen plate (9) is fixedly installed with a vibration motor (12), and the vibration motor (12) is electrically connected with the control panel (11). 4.The powder recycling device with a screening function for a 3D printing device according to claim 1, characterized in that: The purification assembly (6) comprises a mounting seat (601), the mounting seat (601) is detachably connected to the top of the screening box (1), the bottom of the mounting seat (601) is in communication with the inside of the cylindrical groove (2), two fans (602) are fixedly installed at the bottom of the screening box (1), an installation frame (603) is arranged at the top of the fan (602), the installation frame (603) is detachably connected to the inner wall of the mounting seat (601), and an activated carbon plate (604) and a molecular sieve (605) are sequentially installed in the installation frame (603) from top to bottom.

5. The powder recycling device with a screening function for a 3D printing equipment according to claim 4, characterized in that: A barrier net (13) is connected to the inner wall of the mounting seat (601), and the barrier net (13) is located at the top of the cylindrical groove (2). 6.The powder recycling device with a screening function for a 3D printing device according to claim 1, characterized in that: The three side edges of the screen plate (5) away from the output shaft of the driving motor (4) are all in sliding connection with the inner wall of the cylindrical groove (2). The three side edges of the screen plate (5) away from the output shaft of the driving motor (4) are all in sliding connection with the inner wall of the cylindrical groove (2).

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