Full-automatic flour mill airflow screen discharging mechanism

Abstract

The utility model discloses a full-automatic flour mill airflow sieve discharging mechanism, which relates to the technical field of airflow sieves, and comprises an airflow sieve box body, the right side of the airflow sieve box body is fixedly connected with a servo motor through a bolt, and the output end of the servo motor extends into the airflow sieve box body and is provided with a spiral feeding rod through a coupler; observation windows are arranged on the two sides of the front end of the airflow screen box correspondingly, and a dismounting and mounting mechanism used for mounting a connecting pipe is arranged below the mounting box. According to the airflow screen discharging mechanism of the full-automatic flour mill, the angle of a limiting frame is adjusted through overturning, so that a toothed plate is pushed, the toothed plate is meshed with a toothed block, the position between a discharging port and a connecting pipe can be limited through the limiting frame, the bottom end of the limiting frame can be attached to the joint of the lower end of the discharging port after the limiting frame is limited, and therefore the discharging port is more stable. And therefore, the connecting pipe cannot fall off, and the discharging opening and the connecting pipe can be quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of airflow screens, in particular to an airflow screen discharging mechanism for a full-automatic grinding mill. Background Art

[0002] Airflow sieve is a high-precision screening equipment for fine powder screening with mesh, especially suitable for screening and grading powder, granules, granular materials, etc. During the use of airflow sieve, the discharging mechanism can assist the discharging of airflow sieve, making the discharging of airflow sieve smoother;

[0003] During use, since the discharging mechanism is not convenient to be quickly installed between the airflow screen, the installation of the discharging mechanism during use wastes too much time, affecting the applicability of the discharging mechanism during use.

[0004] To overcome these drawbacks, the prior art (Chinese patent publication number CN206104368U, application date September 28, 2016) describes an airflow screen with precisely controlled feeding and discharging. The discharge end of the suction pump is connected to a metering tank of an automatic metering mechanism via a first delivery pipe. The discharge port of the metering tank is connected to the feed port of the airflow screen body via a second delivery pipe. A weighing module is installed at the bottom of the metering tank, and a control valve is installed at the end of the second delivery pipe near the feed port. A pressure sensor is installed at the bottom of the storage box. The weighing module, control valve, pressure sensor, and suction pump are all controlled by a PLC controller, which can reduce worker labor intensity and improve overall work efficiency.

[0005] The above-mentioned mechanism reduces the labor intensity of workers and improves the overall work efficiency by setting up an automatic feeding mechanism and an automatic metering mechanism. However, in actual use, the air flow screen generally uses a spiral feeding rod for feeding. At the same time, the powder screened by the air flow screen is easily retained at the discharge port during the continuous screening and accumulation process, affecting the stable discharge of the air flow screen. Utility Model Content

[0006] The purpose of the utility model is to provide a fully automatic grinding mill air flow screen discharging mechanism to solve the problem in the above background technology that the discharging mechanism is not convenient to be quickly installed between the air flow screen during use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air flow screen discharging mechanism of a fully automatic grinding mill, comprising an air flow screen box, a servo motor is fixedly connected to the right side of the air flow screen box by bolts, and the output end of the servo motor extends to the interior of the air flow screen box and is installed with a spiral feeding rod through a coupling, a feed port is provided on the right side of the top of the air flow screen box, observation windows are provided on both sides of the front end of the air flow screen box, the bottom end of the air flow screen box is clamped and connected to a support frame, and a discharge port is provided on both sides of the bottom end of the air flow screen box, the bottom end of the discharge port is clamped and connected to a connecting pipe, and a screen is clamped and connected to the inside of the air flow screen box outside the spiral feeding rod;

[0008] A mounting box is provided at the lower end of the outer side of the discharge port, and a disassembly and assembly mechanism for installing the connecting pipe is provided below the mounting box, the disassembly and assembly mechanism includes a tooth plate, and the tooth plate is slidably connected to the interior of the mounting box, the outer side of the connecting pipe is hinged to a limit frame, and the top end of the limit frame is fixedly connected to a tooth block meshing with the tooth plate;

[0009] The interior of the connecting pipe is rotatably connected to a rotating rod, and one side of the connecting pipe is provided with an anti-residue mechanism for knocking the connecting pipe.

[0010] Furthermore, a connecting spring is fixedly connected to the top end of the tooth plate, and an elastic structure is formed between the tooth plate and the installation box through the connecting spring.

[0011] Furthermore, torsion springs are wound around both the front and rear ends of the limiting frame, and the torsion springs are distributed at equal angles on the outside of the connecting pipe.

[0012] Furthermore, a lightweight fan blade is provided on the outer side of the rotating rod, and the lightweight fan blade is provided at the lower end inside the connecting tube.

[0013] Furthermore, the anti-residue mechanism includes a fixed rod, and the fixed rod is fixedly connected to the front and rear ends of the rotating rod, a cam is rotatably connected between the fixed rods on the side away from the rotating rod, and a mounting plate is fixedly connected to the side of the fixed rods close to the cam, the left side of the mounting plate is snap-connected with an extrusion plate, and one side of the extrusion plate passes through the mounting plate and is installed with a knocking block.

[0014] Furthermore, the knocking block is arranged on the outside of the connecting pipe, and the side surface of the knocking block is in contact with the outside of the connecting pipe.

[0015] Furthermore, a return spring is wound around the outer side of the extrusion plate, and an elastic structure is formed between the extrusion plate and the knocking block through the return spring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The material added from the feed port is stably conveyed by the spiral feeding rod. The spiral feeding rod can effectively and stably convey the material and effectively avoid the blockage and accumulation of the material during the feeding process;

[0018] Furthermore, by flipping and adjusting the angle of the limit frame, the tooth plate is pushed, so that the tooth plate and the tooth block are meshed with each other, and the limit frame can limit the position between the discharge port and the connecting pipe. After being limited, the bottom end of the limit frame will fit with the connection point at the lower end of the discharge port, so that the connecting pipe will not fall off, and the quick disassembly and assembly between the discharge port and the connecting pipe can be completed;

[0019] Furthermore, the torsion springs at both ends of the limit frame can assist the limit frame to automatically reset when the connecting pipe is disassembled, thereby facilitating the flexibility of disassembling the connecting pipes. By pressing the tooth plate, the connecting spring is stressed and shortened, so that the tooth plate and the tooth block are separated. The elastic force of the torsion spring is then used to reset the limit frame, facilitating disassembly.

[0020] 2. The output end of the motor drives the rotating rod to rotate. During the rotation of the rotating rod, the lightweight fan blades can be driven to rotate inside the connecting pipe, so that the lightweight fan blades can move the materials, so that the materials are gradually dispersed when falling, effectively avoiding the situation where the materials are piled up too high. At the same time, the rotation of the lightweight fan blades also prevents the internal materials from being blocked inside the connecting pipe, affecting the subsequent discharge efficiency.

[0021] Furthermore, during the rotation process, the rotating rod will drive the cam to rotate through the belt transmission mechanism. When the cam rotates, it will push the extrusion plate to the right, thereby causing the return spring to be stressed and shortened in length. At the same time, the knocking block is pushed by the extrusion plate and moves to the right. The knocking block continuously knocks on the connecting tube, causing the powder attached to the inner wall of the connecting tube to fall due to the knocking, thereby effectively reducing the powder residue on the inner wall of the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0024] Figure 3 This is a structural diagram of the discharging mechanism of the utility model;

[0025] Figure 4 This is a structural diagram of the disassembly and assembly mechanism of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the limit frame of the utility model;

[0027] Figure 6 This is a schematic structural diagram of the anti-residue mechanism of the utility model;

[0028] Figure 7 It is a partially enlarged structural diagram of the disassembly and assembly mechanism of the utility model.

[0029] In the figure: 1. Air flow screen box; 2. Feed port; 3. Servo motor; 4. Screw feed rod; 5. Screen; 6. Discharge port; 7. Support frame; 8. Observation window; 9. Connecting pipe; 10. Mounting box; 11. Connecting spring; 12. Tooth plate; 13. Limiting frame; 14. Tooth block; 15. Torsion spring; 16. Rotating rod; 17. Lightweight fan blade; 18. Cam; 19. Mounting plate; 20. Extrusion plate; 21. Knocking block; 22. Reset spring; 23. Fixing rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figure 1-Figure 5 and Figure 7The technical solution shown is to solve the problem that the discharging mechanism is not convenient to be quickly installed between the air flow screen during use: the air flow screen discharging mechanism of the fully automatic grinding mill discloses a disassembly and assembly mechanism, including an air flow screen box body 1, the right side of the air flow screen box body 1 is fixedly connected to the servo motor 3 by bolts, and the output end of the servo motor 3 extends to the interior of the air flow screen box body 1 and is installed with a spiral feeding rod 4 through a coupling, a feed port 2 is provided on the right side of the top of the air flow screen box body 1, observation windows 8 are provided on both sides of the front end of the air flow screen box body 1, the bottom end of the air flow screen box body 1 is snap-connected with a support frame 7, and discharge ports 6 are provided on both sides of the bottom end of the air flow screen box body 1, and the bottom end of the discharge port 6 is snap-connected with a connecting pipe 9. The inner side of the air flow screen box 1 outside the spiral feeding rod 4 is snap-connected with a screen 5, and the lower end of the outer side of the discharge port 6 is provided with a mounting box 10, and a disassembly and assembly mechanism for installing the connecting pipe 9 is provided below the mounting box 10. The disassembly and assembly mechanism includes a tooth plate 12, and the tooth plate 12 is slidably connected to the inside of the mounting box 10. The outer side of the connecting pipe 9 is hinged with a limit frame 13, and the top of the limit frame 13 is fixedly connected with a tooth block 14 engaged with the tooth plate 12, the top of the tooth plate 12 is fixedly connected with a connecting spring 11, and an elastic structure is formed between the tooth plate 12 and the mounting box 10 through the connecting spring 11, and the front and rear ends of the limit frame 13 are wound with torsion springs 15, and the torsion springs 15 are distributed at equal angles on the outside of the connecting pipe 9.

[0033] In this example, the output end of the servo motor 3 can drive the spiral feeding rod 4 to rotate, and the spiral feeding rod 4 can stably convey the material added from the feed port 2. The spiral feeding rod 4 can effectively and stably convey the material, and effectively avoid the blockage and accumulation of the material during the feeding process. The material passes through the screen 5 and the internal airflow cooperates with each other, so that the smaller particles of material will pass through the screen 5 and fall into the discharge port 6 on the left side of the airflow screen box 1, while the larger particles of material will fall into the discharge port 6 on the right side of the airflow screen box 1, thereby realizing the screening process of the material;

[0034] When the material is screened and discharged, the discharge mechanism can be used to better collect the discharged material. The discharge port 6 can be connected to other collection devices through the connecting pipe 9, so that the material can be directly transported for subsequent processing after being screened.

[0035] By flipping the limit frame 13 on the outside of the connecting tube 9, the tooth block 14 on one side of the limit frame 13 pushes the tooth plate 12 toward the upper end inside the installation box 10. After the position of the tooth block 14 is adjusted, the tooth plate 12 pops out by the elastic force of the connecting spring 11 and engages its lower end with the tooth block 14, so that the angle of the tooth block 14 is limited. After the angle of the tooth block 14 is limited, the connection position between the discharge port 6 and the connecting tube 9 is limited, thereby realizing rapid installation between the discharge port 6 and the connecting tube 9, which is convenient for separate collection and processing of the material output from the discharge port 6.

[0036] Example 2:

[0037] like Figure 1 、 Figure 2 、 Figure 3 and Figure 6 The technical solution shown is to solve the problem that the powder is easily accumulated inside the collecting device due to the fast powder discharge speed at the connecting pipe 9: the air flow screen discharging mechanism of the fully automatic grinding mill discloses a lightweight fan blade 17, and the lightweight fan blade 17 is provided on the outside of the rotating rod 16, and the lightweight fan blade 17 is provided at the lower end of the inside of the connecting pipe 9.

[0038] In this example, the output end of the motor drives the rotating rod 16 to rotate. During the rotation of the rotating rod 16, the lightweight fan blades 17 can be driven to rotate inside the connecting tube 9, so that the lightweight fan blades 17 can move the material, so that the position of the material gradually disperses when falling, effectively avoiding the situation where the material accumulates too high. At the same time, the rotation of the lightweight fan blades 17 also prevents the internal material from being blocked inside the connecting tube 9, affecting the subsequent discharge efficiency.

[0039] Example 3:

[0040] like Figure 1 、 Figure 2 、 Figure 3 and Figure 6The technical scheme shown, based on example one, in order to solve the problem that powder is easy to remain on the inner side wall of the connecting pipe 9 when discharging: the airflow screen discharge mechanism of the full-automatic flour mill, the inside of the connecting pipe 9 is rotatably connected with a rotating rod 16, and one side of the connecting pipe 9 is provided with a residual prevention mechanism for knocking it, the residual prevention mechanism comprises a fixed rod 23, and the fixed rod 23 is fixedly connected to the front and rear ends of the rotating rod 16, a cam 18 is rotatably connected to the side of the fixed rod 23 away from the rotating rod 16, an installation plate 19 is fixedly connected to the side of the fixed rod 23 close to the cam 18, a pressing plate 20 is clamped and connected to the left side of the installation plate 19, a knocking block 21 is installed on the side of the pressing plate 20 through the installation plate 19, the knocking block 21 is arranged on the outside of the connecting pipe 9, and the side surface of the knocking block 21 is attached to the outside of the connecting pipe 9, a return spring 22 is wound on the outside of the pressing plate 20, and the pressing plate 20 and the knocking block 21 form an elastic structure through the return spring 22.

[0041] In this example, the rotating rod 16 drives the cam 18 to rotate through the belt transmission mechanism during rotation, the cam 18 pushes the pressing plate 20 to the right during rotation, so that the return spring 22 is stressed and the length is shortened, and the knocking block 21 is pushed by the pressing plate 20 and moves to the right, the knocking block 21 continuously knocks the connecting pipe 9, so that the powder attached to the inner wall of the connecting pipe 9 falls due to the knocking, thereby effectively reducing the powder remaining on the inner wall of the connecting pipe 9.

[0042] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fully automatic grinding mill air flow screen discharging mechanism, comprising an air flow screen box (1), the right side of the air flow screen box (1) is fixedly connected to a servo motor (3) by bolts, and the output end of the servo motor (3) extends to the interior of the air flow screen box (1) and is installed with a spiral feeding rod (4) through a coupling, a feed port (2) is provided on the right side of the top of the air flow screen box (1), observation windows (8) are provided on both sides of the front end of the air flow screen box (1), the bottom end of the air flow screen box (1) is snap-connected with a support frame (7), and a discharge port (6) is provided on both sides of the bottom end of the air flow screen box (1), the bottom end of the discharge port (6) is snap-connected with a connecting pipe (9), and a screen (5) is snap-connected to the inside of the air flow screen box (1) outside the spiral feeding rod (4); Its characteristics are: A mounting box (10) is provided at the lower end of the outer side of the discharge port (6), and a disassembly mechanism for installing the connecting pipe (9) is provided below the mounting box (10), the disassembly mechanism includes a tooth plate (12), and the tooth plate (12) is slidably connected to the interior of the mounting box (10), the outer side of the connecting pipe (9) is hinged with a limiting frame (13), and the top end of the limiting frame (13) is fixedly connected with a tooth block (14) meshing with the tooth plate (12); The interior of the connecting tube (9) is rotatably connected to a rotating rod (16), and one side of the connecting tube (9) is provided with an anti-residue mechanism for knocking the connecting tube (9).

2. The airflow screening discharging mechanism of a fully automatic grinding mill according to claim 1, characterized in that: The top end of the tooth plate (12) is fixedly connected to a connecting spring (11), and an elastic structure is formed between the tooth plate (12) and the installation box (10) via the connecting spring (11).

3. The airflow screening discharging mechanism of a fully automatic grinding mill according to claim 2, characterized in that: Torsion springs (15) are wound around both the front and rear ends of the limiting frame (13), and the torsion springs (15) are distributed at equal angles on the outside of the connecting pipe (9).

4. The airflow screen discharging mechanism of a fully automatic grinding mill according to claim 1, characterized in that: A light fan blade (17) is provided on the outer side of the rotating rod (16), and the light fan blade (17) is arranged at the lower end inside the connecting pipe (9).

5. The airflow screen discharging mechanism of a fully automatic grinding mill according to claim 1, characterized in that: The anti-residue mechanism comprises a fixed rod (23), and the fixed rod (23) is fixedly connected to the front and rear ends of the rotating rod (16); a cam (18) is rotatably connected to the side of the fixed rod (23) away from the rotating rod (16); and a mounting plate (19) is fixedly connected to the side of the fixed rod (23) close to the cam (18); the left side of the mounting plate (19) is engaged with an extrusion plate (20), and one side of the extrusion plate (20) passes through the mounting plate (19) and is installed with a knocking block (21).

6. The airflow screen discharging mechanism of a fully automatic grinding mill according to claim 5, characterized in that: The knocking block (21) is arranged on the outside of the connecting pipe (9), and the side surface of the knocking block (21) is in contact with the outside of the connecting pipe (9).

7. The airflow screen discharging mechanism of a fully automatic grinding mill according to claim 6, characterized in that: A return spring (22) is wound around the outer side of the extrusion plate (20), and an elastic structure is formed between the extrusion plate (20) and the knocking block (21) via the return spring (22).

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