Powder filtering device

Abstract

The utility model discloses a powder filtering device which comprises a bottom plate, a working table, a feeding hopper and a smashing box, the working table is arranged at the top of the bottom plate, the smashing box is fixedly installed on the working table, the feeding hopper is arranged at the top of the smashing box, and two parallel smashing rollers are arranged in the smashing box. A smashing roller driving motor corresponding to the smashing roller is installed on the outer side of the smashing box, and a discharging port in the bottom of the smashing box is connected with a screening box. According to the structure of the device, after being fed from the feeding hopper, materials are smashed through the smashing rollers in the smashing box, the smashed materials fall into the screening barrel from the smashing box, the concave face of the bottom of the screening barrel is a screen, one end of the screening barrel communicates with the first discharging port, and the smashed materials are screened through the screen in the screening barrel; and the crushed materials can be pushed by the extrusion screw rod, so that the crushed materials are in a moving state in the screening barrel all the time, powder accumulation and blockage at the screen are avoided, and convenience is provided for powder filtering and screening.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder filtering and screening technical field, concretely to a powder filtering device. BACKGROUND

[0002] In the processing of conductive polymer dispersion, the raw material of polymer particles needs to be crushed and screened to obtain powder of proper size. The screen is usually of fixed structure. During the screening process, the powder is only allowed to fall through the screen, which may cause the powder to accumulate on the screen and block the screen. This affects the normal screening of the crushed powder. Therefore, the present application provides a powder filtering device. SUMMARY

[0003] The utility model discloses a kind of powder filtering devices, to solve the problem raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of powder filtering device, including bottom plate, workbench, feed hopper and pulverization box, the top of bottom plate is provided with workbench, is fixedly installed with pulverization box on workbench, the top of pulverization box is provided with feed hopper, the inside of pulverization box is built-in two parallel pulverization rollers, corresponding pulverization roller drive motor is installed on the outside of pulverization box with pulverization roller, inclined flow guide plate is set on the top and bottom of pulverization roller, the bottom discharge port of pulverization box is connected with screening box;

[0005] Horizontal horizontal axis is provided in the screening box Screen barrel, the bottom surface of screen barrel is provided with screen, extrusion screw is built-in in the inside of screen barrel, the back outside of extrusion screw is connected with screw drive motor, one end of screen barrel is connected with inclined first discharge port, the bottom of screen is connected with second discharge port, PLC controller is installed on workbench.

[0006] Preferably, the pulverization roller drive motor and pulverization roller are connected by motor shaft transmission, and the teeth on the outer surfaces of the two pulverization rollers are arranged in staggered positions.

[0007] Preferably, the screw drive motor and extrusion screw are connected, and the PLC controller is electrically connected with the pulverization roller drive motor and the screw drive motor respectively.

[0008] Preferably, a material collecting box is arranged at the bottom of the first discharge port and the second discharge port.

[0009] Advantages

[0010] The utility model provides a kind of powder filtering device, with the following advantages:

[0011] The material is crushed by the crushing roller in the crushing box after being put into the feeding hopper, and the crushed material falls into the screening cylinder from the crushing box, the bottom concave surface of the screening cylinder is a screen, one end of the screening cylinder is connected with the first discharge port, and the crushed material is always in a moving state in the screening cylinder while being screened by the screen, so that the accumulation and blockage of the powder at the screen are avoided, and convenience is provided for powder screening. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic view of the overall structure of the utility model;

[0013] Figure 2 It is a front view of the utility model;

[0014] Figure 3 It is Figure 2 It is an enlarged structural view of the screening cylinder

[0015] In the figure: 1, bottom plate; 2, workbench; 3, feeding hopper; 4, crushing box; 5, crushing roller; 6, crushing roller driving motor; 7, inclined guide plate; 8, screening box; 9, screening cylinder; 10, screen; 11, extrusion screw; 12, screw driving motor; 13, first discharge port; 14, second discharge port; 15, PLC controller; 16, material collecting box. DETAILED DESCRIPTION

[0016] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] Please refer to Figures 1-3 The utility model provides a kind of technical solutions: a powder filtering device, including bottom plate 1, workbench 2, feeding hopper 3 and crushing box 4, the top of bottom plate 1 is provided with workbench 2, and crushing box 4 is fixedly installed on workbench 2, and the top of crushing box 4 is provided with feeding hopper 3, and two parallel crushing rollers 5 are built in the inside of crushing box 4, and crushing roller driving motor 6 corresponding to crushing roller 5 is installed on the outside of crushing box 4, and inclined guide plate 7 is arranged on the top and bottom of crushing roller 5, and screening box 8 is connected to the bottom discharge port of crushing box 4;

[0018] The screening box 8 is provided with a horizontal transverse screening cylinder 9, the bottom discharge port of the crushing box 4 and the screening cylinder 9 are connected through a connecting pipe, the bottom concave surface of the screening cylinder 9 is provided with a screen 10, the screen 10 is embedded in the bottom of the screening cylinder 9, the inside of the screening cylinder 9 is provided with an extrusion screw 11, the back outside of the extrusion screw 11 is connected with a screw driving motor 12, one end of the screening cylinder 9 is connected with an inclined first discharge port 13, the bottom of the screen 10 is connected with a second discharge port 14, and a PLC controller 15 is installed on the workbench 2 and controls the work of the two crushing roller driving motors 6 and the screw driving motor 12.

[0019] The crushing roller driving motor 6 and the crushing roller 5 are connected through a motor shaft transmission, the meshing teeth on the outer surfaces of the two crushing rollers 5 are arranged in a staggered manner, so that the two crushing rollers 5 can be driven by the two crushing roller driving motors 6 to rotate oppositely, and the material can be crushed by the meshing teeth on the outer surfaces of the two crushing rollers 5.

[0020] The screw driving motor 12 and the extrusion screw 11 are in transmission connection, the PLC controller 15 is electrically connected with the crushing roller driving motor 6 and the screw driving motor 12, the screw driving motor 12 drives the extrusion screw 11 to rotate in the screening cylinder 9, the inclined threads on the outer surface of the extrusion screw 11 push the material to the left side in the screening cylinder 9, part of the material falls through the screen 10 during the pushing process and falls out of the second discharge port 14, and part of the powder larger than the aperture size of the screen 10 is pushed to the left side to the first discharge port 13 and falls out.

[0021] The first discharge port 13 and the second discharge port 14 are both provided with a material collecting box 16, so as to facilitate the collection of the powder with different particle sizes after screening.

[0022] Working principle:

[0023] In the structure of the device, the raw material is poured from the feeding hopper 3 and falls into the crushing box 4, the PLC controller 15 controls the work of the two crushing roller driving motors 6, the two crushing roller driving motors 6 drive the two crushing rollers 5 to rotate oppositely in the crushing box 4, the material is crushed by the meshing teeth on the outer surfaces of the two crushing rollers 5 and falls to the screening cylinder 9, and the raw material falls along the inclined guide plate 7 to the position between the two crushing rollers 5, and the crushed raw material also falls along the inclined guide plate 7 to the screening cylinder 9;

[0024] After the crushed material falls into the screening cylinder 9, the extrusion screw 11 is slowly rotated by the PLC controller 15 controlling the screw driving motor 12, the crushed material is pushed out to the left by the extrusion screw 11, the powder smaller than the aperture size of the screen 10 falls from the second discharge port 14, and the powder larger than the aperture size of the screen 10 is pushed out to the left in the screening cylinder 9 by the extrusion screw 11, the material is pushed to the first discharge port 13 from right to left along the extrusion screw 11 surface pattern and falls into the receiving box 16, the powder is in a moving state in the screening cylinder 9, which can avoid the powder from piling up at the screen 10 and causing blockage.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A powder filtering device comprising a base plate (1), a work table (2), a feeding hopper (3) and a pulverizing box (4), characterized in that, The top of the bottom plate (1) is provided with a workbench (2), a crushing box (4) is fixedly installed on the workbench (2), the top of the crushing box (4) is provided with a feeding hopper (3), two parallel crushing rollers (5) are built-in in the crushing box (4), a crushing roller driving motor (6) corresponding to the crushing roller (5) is installed on the outer side of the crushing box (4), an inclined flow guide plate (7) is arranged on the top and the bottom of the crushing roller (5), and a screening box (8) is connected to the bottom discharge port of the crushing box (4); A horizontal horizontal screening cylinder (9) is arranged in the screening box (8), a screen (10) is arranged on the bottom surface of the screening cylinder (9), an extrusion screw (11) is built-in in the screening cylinder (9), a screw driving motor (12) is connected to the back outer side of the extrusion screw (11), an inclined first discharge port (13) is connected to one end of the screening cylinder (9), a second discharge port (14) is connected to the bottom of the screen (10), and a PLC controller (15) is installed on the workbench (2).

2. A powder filtering device according to claim 1, characterized in that: The crushing roller driving motor (6) and the crushing roller (5) are drivingly connected through a motor shaft, and the meshing teeth on the outer surfaces of the two crushing rollers (5) are arranged in a staggered mode.

3. A powder filtering device according to claim 1, characterized in that: The screw driving motor (12) and the extrusion screw (11) are drivingly connected, and the PLC controller (15) is electrically connected with the crushing roller driving motor (6) and the screw driving motor (12) respectively.

4. A powder filtering device according to claim 1, characterized in that: A material collecting box (16) is arranged at the bottom of the first discharge port (13) and the second discharge port (14).

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