Automatic powder screening machine with multiple screening functions

Abstract

The utility model discloses an automatic powder screening machine with multiple screening, which relates to the technical field of automatic powder screening machines and comprises an outer shell, powder screening components and a hot air drying component, a discharging hopper is fixed below the outer shell, and the upper powder screening component and the lower powder screening component are arranged in the outer shell. And the powder screening assembly comprises a bottom ring, springs, a vibration motor, a screening frame, a material guide plate, a screen mesh and an elastic cover edge, the bottom ring is fixedly connected with the inner wall of the outer shell, the springs and the vibration motor are installed on the upper side of the bottom ring, the screening frame is connected to the upper sides of the springs, the material guide plate is fixed to the upper portion of the screening frame, and the screen mesh is fixed to the interior of the screening frame. According to the automatic powder screening machine with the multiple screening function, multiple screening can be achieved through the upper powder screening assembly and the lower powder screening assembly, the screen frame and the screen cloth can vibrate up and down under the action of the springs and the vibration motor so that screening can be promoted, the section of the material guide plate is of a triangular structure, powder on the upper portion can be promoted to be concentrated towards the position of the screen cloth, and powder screening is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic powder sieving machines, in particular to an automatic powder sieving machine with multiple sieving functions. Background Art

[0002] A powder sieving machine is a machine that uses sieves of different specifications to grade the materials ground by a mill and sift the powder from it. The traditional method of sieving powder is to shake the sieve by hand to make the finer powder fall through the sieve, which takes a lot of time, has high labor intensity for employees, takes too long to sieving, has low production efficiency, and different employees have different techniques, so the measured fineness deviates, so an automatic powder sieving machine is needed.

[0003] For example, the utility model with application number CN202022635357.0 discloses an automatic powder sieving machine. The automatic powder sieving machine similar to the above-mentioned application currently still has the following shortcomings: during the powder sieving process, although it can automatically sieve and collect powder, the lack of a material guide structure makes it easy for the powder to accumulate on the screen frame / vibrating screen frame position, and the up and down and left and right shaking makes it easy for the powder to fall through the gap without being sieved. In addition, it does not have a multiple screening structure.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an automatic powder sieving machine with multiple sieving is proposed. Utility Model Content

[0005] The utility model aims to provide an automatic powder sieving machine with multiple sieving functions to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic powder screening machine with multiple screenings, comprising an outer shell, a powder screening assembly and a hot air drying assembly, a lower hopper is fixed at the bottom of the outer shell, an upper and lower group of powder screening assemblies are arranged inside the outer shell, and the powder screening assembly comprises a bottom ring, a spring, a vibration motor, a screen frame, a material guide plate, a screen and an elastic cover edge, the bottom ring is fixedly connected to the inner wall of the outer shell, and a spring and a vibration motor are installed on the upper side of the bottom ring, the upper side of the spring is connected to the screen frame, and a material guide plate is fixed above the screen frame, a screen is fixed inside the screen frame, and an elastic cover edge is fixed to the inner ring between the screen frame and the bottom ring, a hot air drying assembly is installed on the outer side of the outer shell, and a feed port is arranged above the outer shell.

[0007] Furthermore, a rotating motor is installed on the upper middle side of the outer shell, and a rotating shaft is provided on the lower side of the rotating motor and passes through the outer shell. A scraper is connected to the bottom side of the rotating shaft through a connecting rod, and the scraper fits against the inner side of the lower hopper.

[0008] Furthermore, an anti-blocking assembly is provided on the upper side of the powder screening assembly, and the anti-blocking assembly includes a fixed ring, a scraper plate and grinding teeth. The fixed ring is fixedly connected to the rotating shaft, and the outer side of the fixed ring is connected to the scraper plate, and the lower side of the scraper plate is fixed with grinding teeth.

[0009] Furthermore, the hot air drying component includes an outer frame, a heating layer and an air inlet pipe. The outer frame is a ring-shaped structure, and a heating layer is arranged on the inner side of the outer frame. An air inlet pipe is fixed on the side of the outer frame close to the outer shell, and the air inlet pipe passes through the outer wall of the outer shell.

[0010] Furthermore, the hot air drying component also includes a suction fan and an exhaust duct. The suction fan is installed on the upper side of the outer frame, and the upper side of the suction fan is connected to the exhaust duct, and the end of the exhaust duct passes through the upper side wall of the outer shell.

[0011] Furthermore, the hot air drying component also includes an air intake fan, which is installed on the outside of the outer frame, and three air intake fans are evenly distributed about the center line of the outer frame, and the pipe openings of the air inlet pipe and the exhaust pipe are fixed with filter screens.

[0012] The utility model provides an automatic powder sieving machine with multiple sieving functions, which has the following beneficial effects:

[0013] The utility model is provided with a powder screening component and an anti-blocking component. The upper and lower groups of powder screening components can realize multiple screening. The screen frame and the screen can vibrate up and down under the action of a spring and a vibration motor to promote screening. The cross-section of the guide plate is a triangular structure so that it can cause the upper powder to concentrate on the screen position to facilitate powder screening. The rotating motor and the rotating shaft can easily drive the rotation of the fixed ring, the scraper plate and the grinding teeth, so that the grinding teeth can grind the powder that has not been screened on the screen and break up the bonded powder agglomerates.

[0014] The utility model is provided with a hot air drying component. The air intake fan is convenient for introducing external air into the interior of the outer frame. The heating layer is equipped with a heating wire that can be electrically heated. The air intake pipe is convenient for sending the hot air inside the outer frame into the interior of the outer shell and then drying the powder therein with hot air. The suction fan and the exhaust pipe are convenient for drawing the hot air on the upper side of the outer shell into the interior of the outer frame for circulating heating and then leading out the dried powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of an automatic powder screening machine with multiple screening functions according to the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the powder screening component of an automatic powder screening machine with multiple screening functions according to the utility model;

[0017] Figure 3The utility model is a schematic diagram of the external structure of an automatic powder sieving machine with multiple sieving functions.

[0018] In the figure: 1. outer shell; 2. lower hopper; 3. rotating motor; 4. rotating shaft; 5. powder screening assembly; 501. bottom ring; 502. spring; 503. vibration motor; 504. screen frame; 505. guide plate; 506. screen; 507. elastic cover edge; 6. anti-blocking assembly; 601. fixing ring; 602. scraper plate; 603. grinding teeth; 7. connecting rod; 8. scraper; 9. hot air drying assembly; 901. outer frame; 902. heating layer; 903. air inlet pipe; 904. suction fan; 905. exhaust pipe; 906. air inlet fan; 10. feed port. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] like Figure 1-Figure 2 As shown, an automatic powder screening machine with multiple screenings includes an outer shell 1, a powder screening component 5 and a hot air drying component 9. A lower hopper 2 is fixed below the outer shell 1, and a feed port 10 is provided above the outer shell 1; two upper and lower groups of powder screening components 5 are provided inside the outer shell 1, and the powder screening component 5 includes a bottom ring 501, a spring 502, a vibration motor 503, a screen frame 504, a guide plate 505, a screen 506 and an elastic cover edge 507, the bottom ring 501 is fixedly connected to the inner wall of the outer shell 1, and the spring 502 and the vibration motor 503 are installed on the upper side of the bottom ring 501, the screen frame 504 is connected to the upper side of the spring 502, and the guide plate 505 is fixed above the screen frame 504. 05. A screen 506 is fixed inside the screen frame 504, and an elastic cover edge 507 is fixed to the inner ring between the screen frame 504 and the bottom ring 501; the upper and lower groups of powder screening components 5 can realize multiple screening, and the screen frame 504 and the screen 506 can vibrate up and down under the action of the spring 502 and the vibration motor 503 to promote screening. The cross-section of the guide plate 505 is a triangular structure so that it can cause the upper powder to concentrate on the position of the screen 506 for easy screening. The elastic cover edge 507 between the screen frame 504 and the bottom ring 501 is an elastic structure that can be telescopic to cooperate with the up and down vibration of the screen frame 504, thereby preventing the powder from entering the side of the spring 502 and affecting the spring 502 to cause jamming.

[0021] like Figure 1-Figure 2As shown, a rotating motor 3 is installed on the upper middle side of the outer shell 1, and a rotating shaft 4 is provided on the lower side of the rotating motor 3 penetrating the outer shell 1, and a scraper 8 is connected to one side of the bottom of the rotating shaft 4 through a connecting rod 7, and the scraper 8 is in contact with the inner side of the lower hopper 2; an anti-blocking component 6 is provided on the upper side of the powder screening component 5, and the anti-blocking component 6 includes a fixed ring 601, a scraper plate 602 and a grinding tooth 603, the fixed ring 601 is fixedly connected to the rotating shaft 4, and the outer side of the fixed ring 601 is connected to the scraper plate 602, and the lower side of the scraper plate 602 is fixed with a grinding tooth 603; through the rotating The rotating motor 3 and the rotating shaft 4 are convenient for driving the rotation of the fixed ring 601, the scraper plate 602 and the grinding teeth 603, so that the grinding teeth 603 can grind the unscreened powder on the screen 506 and break up the sticky powder clumps. The screen 506 vibrates up and down while touching the rotating grinding teeth 603, so that the grinding and breaking can not only promote the screening efficiency but also prevent blockage. At the same time, the rotating shaft 4 is convenient for driving the rotation of the scraper 8 and the lower hopper 2, so that the scraper 8 can scrape the powder on the inner wall of the lower hopper 2, avoid the accumulation of powder on the inner wall of the lower hopper 2 and promote the discharge of powder.

[0022] like Figure 1 and Figure 3 As shown, a hot air drying component 9 is installed on the outer side of the outer shell 1, and the hot air drying component 9 includes an outer frame 901, a heating layer 902 and an air inlet pipe 903. The outer frame 901 is a ring-shaped structure, and the inner side of the outer frame 901 is provided with a heating layer 902, and an air inlet pipe 903 is fixed to the side of the outer frame 901 close to the outer shell 1, and the air inlet pipe 903 passes through the outer wall of the outer shell 1; the hot air drying component 9 also includes a suction fan 904 and an exhaust pipe 905, the suction fan 904 is installed on the upper side of the outer frame 901, and the upper side of the suction fan 904 is connected to the exhaust pipe 905, and the end of the exhaust pipe 905 passes through the upper side wall of the outer shell 1; the hot air drying component 9 also includes an air intake fan 906, the air intake fan 906 is installed on the outer side of the outer frame 901, and the air intake fan 9 06 There are three evenly distributed about the center line of the outer frame 901, and the pipe openings of the air inlet pipe 903 and the exhaust pipe 905 are fixed with filter screens; the outer frame 901 is in a ring-shaped structure, which is convenient for being set on the outside of the cylindrical outer shell 1, and the air inlet fan 906 is convenient for introducing external air into the interior of the outer frame 901. The heating layer 902 is equipped with a heating wire that can be electrically heated. The air inlet pipe 903 is convenient for sending the hot air inside the outer frame 901 into the interior of the outer shell 1 and then drying the powder therein with hot air. The suction fan 904 and the exhaust pipe 905 are convenient for drawing the hot air on the upper side of the outer shell 1 into the interior of the outer frame 901 for circulating heating and then exporting the dried powder. The pipe openings of the air inlet pipe 903 and the exhaust pipe 905 are fixed with filter screens to prevent the powder from entering the outer frame 901.

[0023] In summary, if Figure 1-Figure 3As shown, when the automatic powder screening machine with multiple screenings is used, first, the material can be fed through the feed port 10, and then the upper and lower powder screening components 5 can perform multiple screenings. At this time, the screen frame 504 and the screen 506 can vibrate up and down under the action of the spring 502 and the vibration motor 503 to promote screening, and the cross-section of the guide plate 505 is a triangular structure so that it can cause the upper powder to concentrate on the screen 506 to facilitate screening. In this process, the rotation of the fixed ring 601, the scraper plate 602 and the grinding teeth 603 is driven by the rotating motor 3 and the rotating shaft 4, so that the grinding teeth 603 can grind the unscreened powder on the screen 506 and break up the bonded powder. When screening, the air intake fan 906 can move the outer The boundary air is introduced into the interior of the outer frame 901, and then the heating layer 902 is equipped with a heating wire that can be electrically heated, so that the air inlet pipe 903 can send the hot air inside the outer frame 901 into the interior of the outer shell 1 and then dry the powder therein with hot air, and the hot air on the upper side of the outer shell 1 can be drawn into the interior of the outer frame 901 through the suction fan 904 and the exhaust pipe 905 for circulating heating and then exporting the dried powder. The sieved powder falls into the lower hopper 2 and is discharged. At this time, the rotating shaft 4 drives the scraper 8 and the lower hopper 2 to rotate, so that the scraper 8 can scrape the powder on the inner wall of the lower hopper 2, avoiding powder accumulation on the inner wall of the lower hopper 2 while promoting the discharge of powder, thus completing the use process of the multiple-screening automatic powder screening machine.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An automatic powder sieving machine with multiple sieving processes, comprising an outer shell (1), a powder sieving component (5) and a hot air drying component (9), characterized in that: A lower hopper (2) is fixed below the outer shell (1), and two upper and lower powder screening assemblies (5) are arranged inside the outer shell (1), and the powder screening assemblies (5) include a bottom ring (501), a spring (502), a vibration motor (503), a screen frame (504), a guide plate (505), a screen (506) and an elastic cover edge (507), the bottom ring (501) is fixedly connected to the inner wall of the outer shell (1), and a spring (502) is installed on the upper side of the bottom ring (501). 2) and a vibration motor (503), the upper side of the spring (502) is connected to a screen frame (504), and a material guide plate (505) is fixed above the screen frame (504), a screen (506) is fixed inside the screen frame (504), and an elastic cover edge (507) is fixed to the inner ring between the screen frame (504) and the bottom ring (501), a hot air drying component (9) is installed on the outer side of the outer shell (1), and a feed port (10) is arranged above the outer shell (1).

2. The automatic powder sieving machine with multiple sieving according to claim 1, characterized in that: A rotating motor (3) is installed on the upper middle side of the outer shell (1), and a rotating shaft (4) is provided on the lower side of the rotating motor (3) and passes through the outer shell (1). A scraper (8) is connected to one side of the bottom of the rotating shaft (4) through a connecting rod (7), and the scraper (8) is in contact with the inner side surface of the lower hopper (2).

3. The automatic powder sieving machine with multiple sieving according to claim 2, characterized in that: An anti-blocking assembly (6) is arranged on the upper side of the powder screening assembly (5), and the anti-blocking assembly (6) comprises a fixing ring (601), a scraper plate (602) and grinding teeth (603), the fixing ring (601) is fixedly connected to the rotating shaft (4), the outer side of the fixing ring (601) is connected to the scraper plate (602), and the lower side of the scraper plate (602) is fixed with the grinding teeth (603).

4. The automatic powder sieving machine with multiple sieving according to claim 1, characterized in that: The hot air drying component (9) comprises an outer frame (901), a heating layer (902) and an air inlet pipe (903); the outer frame (901) is in a ring-shaped structure, and the heating layer (902) is arranged on the inner side of the outer frame (901); the air inlet pipe (903) is fixed on a side of the outer frame (901) close to the outer shell (1), and the air inlet pipe (903) passes through the outer wall of the outer shell (1).

5. The automatic powder sieving machine with multiple sieving according to claim 4, characterized in that: The hot air drying component (9) also includes a suction fan (904) and an exhaust pipe (905); the suction fan (904) is installed on the upper side of the outer frame (901), and the upper side of the suction fan (904) is connected to the exhaust pipe (905), and the end of the exhaust pipe (905) passes through the upper side wall of the outer shell (1).

6. The automatic powder sieving machine with multiple sieving according to claim 5, characterized in that: The hot air drying component (9) also includes an air intake fan (906), and the air intake fan (906) is installed on the outside of the outer frame (901), and three air intake fans (906) are evenly distributed about the center line of the outer frame (901), and the pipe openings of the air inlet pipe (903) and the exhaust pipe (905) are fixed with filter screens.

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