Uniform quantitative powder feeding system

Abstract

The utility model discloses a uniform quantitative powder feeding system which comprises a powder feeding box and a material box, the top end of the powder feeding box is provided with the material box, the top end of the material box is provided with a feeding port, the outer wall of the powder feeding box is provided with a driving motor, and the bottom end of the powder feeding box is provided with an electromagnetic valve. A driving shaft is movably installed in the powder feeding box, the output end of a driving motor is connected with the driving shaft, the surface of the driving shaft is sleeved with a material stirring roller, multiple sets of material grooves are formed in the outer wall of the material stirring roller at equal intervals, a right limiting plate is installed on the portion, on one side of the material stirring roller, of the inner wall of the powder feeding box, and the right limiting plate is slidably connected with the material stirring roller. An arc-shaped plate is installed at the end, close to the material stirring roller, of the right limiting plate. According to the metal powder quantitative conveying device, metal powder is finely screened in a reciprocating shaking mode and evenly and quantitatively conveyed, a good material basis is conveniently provided for subsequent 3D printing, and the convenience of quantitative conveying of the metal powder is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder feeding system technical field, concretely is a kind of uniform quantitative powder feeding system. BACKGROUND

[0002] With the rapid development of science and technology, 3D printing technology is applied more and more widely, 3D printing technology is a kind of digital model file as foundation, by layer printing to construct object technology, it usually uses powder metal or plastic and other materials that can be bonded, through digital technology material printer to realize the current has been applied to metal rapid prototyping field, metal rapid prototyping process is the process of layering metal powder, metal powder is usually very valuable material, need accurate airtight quantitative powder feeding, in order to better the quantitative powder feeding of metal powder, so a kind of uniform quantitative powder feeding system is presented.

[0003] Such as the authorized announcement number CN211997800U discloses a kind of uniform quantitative powder feeding system, including two-stage barrel, powder uniform feeder and powder separator on rack, two-stage barrel is used to store the powder after filtering processing, the lower end of two-stage barrel is equipped with powder uniform feeder, uniform feeder is transported to powder separator with powder feeding pipe, the powder separator is equipped with several branch management, uniform feeder is quantitatively transported powder to powder separator by airflow, and is evenly distributed, so that each branch pipe is evenly and equally transported powder;

[0004] It realizes the uniform quantitative powder feeding of powder, is convenient for mass delivery, effectively improves the conveying efficiency and precision, reduces the maintenance of equipment, improves the service life of equipment, controls the powder feeding amount when powder feeding, reduces the energy consumption and improves the energy utilization, and can be integrated with other equipment.

[0005] But it does not solve the problem that the existing powder feeding system is not conducive to reciprocating shaking, fine screening metal powder and uniform quantitative delivery of metal powder when in use, is not conducive to providing good material basis for subsequent 3D printing, and affects the convenience of metal powder quantitative delivery. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of uniform quantitative powder feeding system, to solve the problem that the powder feeding system is not convenient for reciprocating shaking, fine screening metal powder and uniform quantitative delivery of metal powder in the above background art, is not conducive to providing good material basis for subsequent 3D printing, and affects the convenience of metal powder quantitative delivery.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a uniform quantitative powder feeding system, including powder feeding box and material box, the top of powder feeding box is installed with material box, the top of material box is installed with feed inlet, the outer wall of powder feeding box is installed with driving motor, the bottom of powder feeding box is installed with electromagnetic valve, the inside of powder feeding box is movably installed with driving shaft, and the output of driving motor is connected with driving shaft, the surface of driving shaft is equipped with poking roller, and the outer wall of poking roller is installed with a plurality of groups of material groove of equal interval, the inner wall of powder feeding box on the side of poking roller is installed with right limit board, and right limit board is connected with poking roller slidingly, the end of right limit board close to poking roller is installed with arc plate, and poking roller is connected with arc plate slidingly, the inner wall of powder feeding box on the other side of poking roller is installed with left limit board, and left limit board is connected with poking roller slidingly.

[0008] Preferably, the inner wall of the material box is symmetrically provided with tracks, and a screening box is arranged between the two tracks.

[0009] Preferably, the outer wall of the screening box is symmetrically provided with two groups of pulleys, and the pulleys are slidingly connected with the tracks.

[0010] Preferably, the inner wall of the material box on one side of the screening box is provided with a servo motor, and the servo motor is fixedly connected with the material box.

[0011] Preferably, the output end of the servo motor is provided with a disc, and the top end of the disc is provided with a long connecting arm.

[0012] Preferably, the end of the long connecting arm close to the disc is provided with a linkage shaft, and the long connecting arm is movably connected with the disc through the linkage shaft.

[0013] Preferably, the end of the long connecting arm away from the disc is provided with a short connecting arm, the end of the short connecting arm close to the long connecting arm is provided with a hinged shaft, and the short connecting arm is movably connected with the long connecting arm through the hinged shaft.

[0014] Preferably, the end of the short connecting arm close to the screening box is provided with a pin shaft, and the short connecting arm is movably connected with the screening box through the pin shaft.

[0015] Compared with the prior art, the powder feeding system not only realizes reciprocating shaking, fine screening of metal powder and uniform quantitative conveying of metal powder, but also improves the convenience of metal powder quantitative conveying.

[0016] (1) metal powder is poured into the inside of the sieve box through the feeding port, the disc is driven to rotate by the servo motor, the long connecting arm is driven to reciprocating swing by the disc through the linkage shaft, the short connecting arm is driven to reciprocating swing by the long connecting arm through the hinged shaft, under the sliding cooperation of the pulley and the track, the sieve box is driven to reciprocating swing in the inside of the material box by the short connecting arm through the pin shaft, metal powder is shaken and screened, metal powder smaller than the surface aperture of the sieve box falls from the inside of the sieve box and is accumulated in the inside of the chute, metal powder larger than the surface aperture of the sieve box stays in the inside of the sieve box, so that fine screening of metal powder is completed, the screened metal powder is finer, the effect of 3D printing can be improved, reciprocating swing fine screening of metal powder is realized, a good material basis is provided for subsequent 3D printing, and the effect of 3D printing is improved;

[0017] (2) when metal powder needs to be uniformly and quantitatively delivered, the driving shaft is driven to rotate by the driving motor, the material pushing roller is driven to rotate by the driving shaft, the chute and the metal powder are driven to rotate counterclockwise by the material pushing roller, when a group of chutes rotates to the left limit plate position, the left limit plate is used to scrape the excess metal powder in the inside, and the excess material is scraped into the inside of the next group of chutes, meanwhile, under the sliding cooperation of the material pushing roller and the arc-shaped plate and the right limit plate, the metal powder is prevented from leaking from the chutes, since the volumes of the chutes are equal, the material delivered each time is uniform and quantitative, after the material is delivered to the inside of the powder feeding box, the electromagnetic valve is opened, and the material is discharged under the action of gravity, so that uniform and quantitative powder feeding is completed, convenient uniform and quantitative delivery of metal powder is realized, and the convenience of quantitative delivery of metal powder is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a front view sectional structure schematic view of the utility model;

[0020] Figure 3 It is a three-dimensional perspective structure schematic view of the material box of the utility model;

[0021] Figure 4 It is a three-dimensional structure schematic view of the sieve box of the utility model;

[0022] Figure 5 It is a three-dimensional structure schematic view of the powder feeding box and the material pushing roller of the utility model.

[0023] In the figure: 1, material box; 2, feed inlet; 3, powder feeding box; 4, driving motor; 5, electromagnetic valve; 6, screening box; 7, right limit plate; 8, left limit plate; 9, driving shaft; 10, stirring roller; 11, arc plate; 12, track; 13, pulley; 14, servo motor; 15, disc; 16, linkage shaft; 17, long connecting arm; 18, hinged shaft; 19, short connecting arm; 20, pin shaft; 21, trough. DETAILED DESCRIPTION

[0024] 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. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to the material box 1-5, an embodiment provided by the utility model: a uniform quantitative powder feeding system, the top of the powder feeding box 3 is provided with the material box 1, the top of the material box 1 is provided with the feed inlet 2, the outer wall of the powder feeding box 3 is provided with the driving motor 4, the driving motor 4 plays the role of power driving, the bottom of the powder feeding box 3 is provided with the electromagnetic valve 5, the inside of the powder feeding box 3 is movably provided with the driving shaft 9, and the output end of the driving motor 4 is connected with the driving shaft 9, the surface of the driving shaft 9 is provided with the stirring roller 10, the outer wall of the stirring roller 10 is provided with multiple groups of troughs 21 at equal intervals, the inner wall of the powder feeding box 3 on one side of the stirring roller 10 is provided with the right limit plate 7, the right limit plate 7 is slidably connected with the stirring roller 10, one end of the right limit plate 7 close to the stirring roller 10 is provided with the arc plate 11, and the stirring roller 10 is slidably connected with the arc plate 11, the inner wall of the powder feeding box 3 on the other side of the stirring roller 10 is provided with the left limit plate 8, and the left limit plate 8 is slidably connected with the stirring roller 10.

[0026] The metal powder is poured into the inside of the screening box 6 through the feed inlet 2, the servo motor 14 is turned on, the disc 15 is rotated by the servo motor 14, the long connecting arm 17 is reciprocatingly swung by the disc 15 through the linkage shaft 16, the short connecting arm 19 is reciprocatingly swung by the long connecting arm 17 through the hinged shaft 18, under the sliding cooperation of the pulley 13 and the track 12, the screening box 6 is reciprocatingly shaken in the inside of the material box 1 by the short connecting arm 19 through the pin shaft 20, the metal powder is shaken and screened, the metal powder smaller than the surface aperture of the screening box 6 falls from the inside of the screening box 6 and is accumulated in the inside of the trough 21, the metal powder larger than the surface aperture of the screening box 6 stays in the inside of the screening box 6, the fine screening operation of the metal powder is completed, the screened metal powder is relatively fine, the effect of 3D printing can be improved, the reciprocating shaking fine screening of the metal powder is realized, a good material basis is provided for subsequent 3D printing, and the effect of 3D printing is improved.

[0027] The inner wall of the material box 1 is symmetrically provided with rails 12, and a screening box 6 is arranged between the two groups of rails 12, and the outer wall of the screening box 6 is symmetrically provided with two groups of pulleys 13, and the pulleys 13 are in sliding connection with the rails 12;

[0028] A servo motor 14 is arranged on the inner wall of the material box 1 on one side of the screening box 6, the servo motor 14 serves as a power drive, and the servo motor 14 is fixedly connected with the material box 1;

[0029] The output end of the servo motor 14 is provided with a disc 15, the top end of the disc 15 is provided with a long connecting arm 17, one end of the long connecting arm 17 close to the disc 15 is provided with a linkage shaft 16, and the long connecting arm 17 is movably connected with the disc 15 through the linkage shaft 16;

[0030] The other end of the long connecting arm 17 away from the disc 15 is provided with a short connecting arm 19, one end of the short connecting arm 19 close to the long connecting arm 17 is provided with a hinged shaft 18, and the short connecting arm 19 is movably connected with the long connecting arm 17 through the hinged shaft 18;

[0031] The other end of the short connecting arm 19 close to the screening box 6 is provided with a pin shaft 20, and the short connecting arm 19 is movably connected with the screening box 6 through the pin shaft 20;

[0032] When it is needed to uniformly and quantitatively deliver the metal powder, the driving motor 4 is turned on to drive the driving shaft 9 to rotate, the driving shaft 9 drives the material pushing roller 10 to rotate, and the material pushing roller 10 drives the material groove 21 and the metal powder to rotate counterclockwise, when a group of material grooves 21 rotates to the position of the left limiting plate 8, the left limiting plate 8 scrapes the excess metal powder in the material groove 21 to the inside of the next group of material grooves 21, and under the sliding cooperation of the material pushing roller 10, the arc-shaped plate 11 and the right limiting plate 7, the metal powder is prevented from leaking from the material groove 21, since the volume of the material groove 21 is equal, the material delivered each time is uniformly and quantitatively, after the material is delivered to the inside of the powder feeding box 3, the electromagnetic valve 5 is opened, and the material is discharged under the action of gravity, so as to complete the uniform and quantitative powder feeding work, and the convenient uniform and quantitative delivery of the metal powder is realized, and the convenience of the quantitative delivery of the metal powder is improved.

[0033] Working principle: the metal powder is poured into the inside of the sieve box 6 through the feed inlet 2, the disc 15 is driven to rotate by the servo motor 14, the long connecting arm 17 is driven to reciprocating swing by the disc 15 through the linkage shaft 16, the short connecting arm 19 is driven to reciprocating swing by the long connecting arm 17 through the hinged shaft 18, under the sliding cooperation of the pulley 13 and the track 12, the sieve box 6 is driven to reciprocating swing in the inside of the material box 1 by the short connecting arm 19 through the pin shaft 20, to shake and screen the metal powder, the metal powder smaller than the surface aperture of the sieve box 6 falls from the inside of the sieve box 6 and accumulates in the inside of the chute 21, the metal powder larger than the surface aperture of the sieve box 6 stays in the inside of the sieve box 6, to complete the fine screening work of the metal powder, the screened metal powder is relatively fine, which can improve the effect of 3D printing, when it is needed to uniformly and quantitatively deliver the metal powder, the driving shaft 9 is driven to rotate by the driving motor 4, the material shifting roller 10 is driven to rotate by the driving shaft 9, the chute 21 and the metal powder are driven to rotate counterclockwise by the material shifting roller 10, when a group of chutes 21 rotates to the left limit plate 8 position, the inside of the chute 21 is scraped by the left limit plate 8 to remove the excess metal powder, the excess material is scraped to the inside of the next group of chutes 21, at the same time, under the sliding cooperation of the material shifting roller 10 and the arc plate 11 and the right limit plate 7, the metal powder is prevented from leaking from the chute 21, because the volume of the chute 21 is equal, so the material delivered each time is uniform and quantitative, after the material is delivered to the inside of the powder feeding box 3, the electromagnetic valve 5 is opened, the material is discharged under the action of gravity, to complete the uniform and quantitative powder feeding work, the above is the whole use content of the uniform and quantitative powder feeding system.

Claims

1. A uniform dosing powder feeding system comprising a powder feeding box (3) and a material box (1), characterized in that: The top end of the powder feeding box (3) is provided with a material box (1), the top end of the material box (1) is provided with a feeding port (2), the outer wall of the powder feeding box (3) is provided with a driving motor (4), the bottom end of the powder feeding box (3) is provided with a solenoid valve (5), the inside of the powder feeding box (3) is movably provided with a driving shaft (9), the output end of the driving motor (4) is connected with the driving shaft (9), the surface of the driving shaft (9) is sleeved with a stirring roller (10), a plurality of groups of troughs (21) are symmetrically arranged on the outer wall of the stirring roller (10), the inside wall of the powder feeding box (3) on one side of the stirring roller (10) is provided with a right limiting plate (7), the right limiting plate (7) is slidably connected with the stirring roller (10), one end of the right limiting plate (7) close to the stirring roller (10) is provided with an arc-shaped plate (11), the stirring roller (10) is slidably connected with the arc-shaped plate (11), the inside wall of the powder feeding box (3) on the other side of the stirring roller (10) is provided with a left limiting plate (8), the left limiting plate (8) is slidably connected with the stirring roller (10).

2. A uniform dosing powder delivery system according to claim 1, wherein: The inside wall of the material box (1) is symmetrically provided with rails (12), and a screening box (6) is arranged between the two groups of rails (12).

3. A uniform dosing powder delivery system according to claim 2, wherein: The outer wall of the screening box (6) is symmetrically provided with two groups of pulleys (13), and the pulleys (13) are slidably connected with the rails (12).

4. A uniform dosing powder delivery system according to claim 2, wherein: The inside wall of the material box (1) on one side of the screening box (6) is provided with a servo motor (14), and the servo motor (14) is fixedly connected with the material box (1).

5. A uniform dosing powder delivery system according to claim 4, wherein: The output end of the servo motor (14) is provided with a disc (15), and the top end of the disc (15) is provided with a long connecting arm (17).

6. A uniform dosing powder delivery system according to claim 5, wherein: One end of the long connecting arm (17) close to the disc (15) is provided with a linkage shaft (16), and the long connecting arm (17) is movably connected with the disc (15) through the linkage shaft (16).

7. A uniform dosing powder delivery system as claimed in claim 5, wherein: One end of the long connecting arm (17) away from the disc (15) is provided with a short connecting arm (19), one end of the short connecting arm (19) close to the long connecting arm (17) is provided with a hinged shaft (18), and the short connecting arm (19) is movably connected with the long connecting arm (17) through the hinged shaft (18).

8. A uniform dosing powder delivery system according to claim 7, wherein: One end of the short connecting arm (19) close to the screening box (6) is provided with a pin shaft (20), and the short connecting arm (19) is movably connected with the screening box (6) through the pin shaft (20).

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