Vibrating screening and automatic grading device

Abstract

The utility model relates to the technical field of vibration screening, in particular to a vibration screening and automatic grading device which comprises a screening box body, a feeding hopper is arranged on the top of the screening box body, supporting legs are arranged on the left side and the right side of the bottom of the screening box body, and a discharging port is formed in the bottom of the screening box body. According to the screening device, after a slag receiving disc is placed in the screening device in a matched mode, a cleaning structure can be started to automatically clean a screening plate, dust on the surface of the screening plate can be scraped away, dust on the surface of the screening plate can be removed, and the screening effect is improved. And meanwhile, dust blocked in the screen holes can be effectively cleaned, time and labor are saved, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screening technology, specifically a vibrating screening and automatic grading device. Background Technology

[0002] An automatic grading vibrating screen is a commonly used screening equipment for grading and screening powdered food materials. It typically consists of a vibrator, screen, feed inlet, discharge outlet, and support frame.

[0003] After screening, some powder materials may adhere to the screen plate due to moisture, or even remain inside the screen holes. Over time, this can cause complete blockage of the screen holes, making screening impossible. Therefore, staff need to clean the screen plate separately. Manual cleaning is not only time-consuming and labor-intensive, but also increases cleaning time and affects screening efficiency.

[0004] Therefore, it is particularly important to design a vibrating screening and automatic grading device to overcome the above-mentioned technical defects and improve the overall practicality. Utility Model Content

[0005] The purpose of this invention is to provide a vibrating screening and automatic grading device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vibrating screening and automatic grading device includes a screening box, a feeding hopper at the top of the screening box, support legs on the left and right sides of the bottom of the screening box, a discharge port at the bottom of the screening box, a sealed door rotatably connected to the front of the screening box, concave support plates symmetrically fixed on the left and right sides of the interior of the screening box, a screen plate between two sets of concave support plates on the same side, screen holes evenly distributed inside the screen plate, side plates connected to the left and right sides of the screen plate, multiple sets of equally spaced vibration springs installed at the bottom of the side plates, a vibration motor installed on the front side of the screen plate, and concave sockets installed on the left and right sides of the interior of the screening box below the screen plate, with a slag receiving tray slidably connected between two sets of concave sockets. A fixed crossbar is installed on the back side and above the sieve plate. A forward and reverse motor is installed at one end of the fixed crossbar. The output end of the forward and reverse motor passes through the interior of the fixed crossbar and is connected to a rotating screw. A screw sleeve is threaded onto the outer side of the rotating screw. A hinged fixing seat is installed on the front side of the screw sleeve. A rotating motor is installed on the top of the hinged fixing seat. The output end of the rotating motor passes through the interior of the hinged fixing seat and is connected to a hinged movable block. A cross plate is installed at the front end of the hinged movable block. An electric push rod is installed on the top of the cross plate. A push plate is connected to the output end of the electric push rod. Clearing short columns are evenly distributed at the bottom of the push plate. A shaft is rotatably connected to the left side of the cross plate through a support plate. A drive motor is connected to one end of the shaft. A cleaning scraper is connected to the outer side of the shaft.

[0008] As a preferred embodiment of this utility model, a controller is provided on the outside of the screening box, wherein the controller is connected to the vibration motor, the forward and reverse motor, the rotary motor, the electric push rod, and the drive motor through wires, and the connection is an electrical connection.

[0009] As a preferred embodiment of this utility model, the bottom end of the vibration spring is fixedly mounted on the concave support plate on the corresponding side by bolts.

[0010] As a preferred embodiment of this utility model, the concave socket and the slag receiving tray are designed to be separable, and the front side of the slag receiving tray is connected to a pull-out handle.

[0011] As a preferred embodiment of this utility model, a rectangular groove is provided inside the screening box and at the position corresponding to the rotating screw for the screw sleeve to move laterally.

[0012] As a preferred embodiment of this utility model, the outer side of the unblocking short column is wrapped with a rubber sleeve, the external structural size of the unblocking short column is adapted to the internal structural size of the sieve hole, and the unblocking short columns arranged in a row correspond to the position of a longitudinal row of sieve holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this utility model, a vibrating screening and automatic grading device is provided. After the slag receiving tray is placed in the device, the cleaning structure can be activated to automatically clean the screen plate. This not only scrapes off the dust on the surface of the screen plate, but also effectively cleans the dust clogging the screen holes. It saves time and effort and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the sieve plate structure of this utility model;

[0017] Figure 3 This is an overall structural diagram of the fixed crossbar part of this utility model.

[0018] In the diagram: 1. Screening box; 2. Feed hopper; 3. Support leg; 4. Discharge port; 5. Sealed door; 6. Concave support plate; 601. Screen plate; 602. Screen hole; 603. Side plate; 604. Vibration spring; 605. Vibration motor; 7. Concave socket; 8. Slag receiving tray; 9. Fixed crossbar; 901. Forward and reverse motor; 902. Rotating screw; 903. Screw sleeve; 904. Hinge fixed seat; 905. Rotating motor; 906. Hinge movable block; 907. Horizontal plate; 908. Electric push rod; 909. Push plate; 910. Unblocking short column; 911. Shaft; 912. Drive motor; 913. Cleaning scraper. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] A vibrating screening and automatic grading device includes a screening box 1, a feed hopper 2 at the top of the screening box 1, support legs 3 on the left and right sides of the bottom of the screening box 1, a discharge port 4 at the bottom of the screening box 1, a sealing door 5 rotatably connected to the front of the screening box 1, concave support plates 6 symmetrically fixed on both the left and right sides inside the screening box 1, and a screen plate 601 between the two sets of concave support plates 6 on the same side. The screen plate 601 has evenly spaced... The sieve hole 602 and the sieve plate 601 are connected to the left and right sides of the side plate 603. Multiple sets of vibration springs 604 with the same interval are installed at the bottom of the side plate 603. A vibration motor 605 is installed on the front side of the sieve plate 601. Concave sockets 7 are installed on the left and right sides of the screening box 1 and below the sieve plate 601. A slag receiving plate 8 is slidably connected between the two sets of concave sockets 7. A fixed crossbar 9 is installed on the back of the screening box 1 and above the sieve plate 601.

[0025] The bottom end of the vibration spring 604 is fixedly installed on the concave support plate 6 on the corresponding side by bolts. The concave socket 7 and the slag receiving plate 8 are designed to be separable. The front side of the slag receiving plate 8 is connected to a pull handle.

[0026] In this embodiment, please refer to Figure 3A forward and reverse motor 901 is installed at one end of a fixed crossbar 9. The output end of the forward and reverse motor 901 passes through the interior of the fixed crossbar 9 and is connected to a rotating screw 902. A screw sleeve 903 is threaded onto the outer side of the rotating screw 902. A hinged fixing seat 904 is installed on the front side of the screw sleeve 903. A rotating motor 905 is installed on the top of the hinged fixing seat 904. The output end of the rotating motor 905 passes through the interior of the hinged fixing seat 904 and is connected to a hinged movable block 906. A cross plate 907 is installed at the front end of the hinged movable block 906. An electric push rod 908 is installed on the top of the cross plate 907. A push plate 909 is connected to the output end of the electric push rod 908. A clearing short column 910 is evenly distributed at the bottom of the push plate 909. A shaft 911 is rotatably connected to the left side of the cross plate 907 through a support plate. A drive motor 912 is connected to one end of the shaft 911. A cleaning scraper 913 is connected to the outer side of the shaft 911.

[0027] The outer side of the screening box 1 is equipped with a controller, which is connected to the vibration motor 605, the forward and reverse motor 901, the rotary motor 905, the electric push rod 908, and the drive motor 912 via wires. The connection is electrical. Inside the screening box 1, at the position corresponding to the rotating screw 902, there is a rectangular groove for the screw sleeve 903 to move laterally. The outside of the unblocking short column 910 is wrapped with a rubber sleeve, which has a certain deformation capacity. The external structure size of the unblocking short column 910 is adapted to the internal structure size of the screen hole 602. The row of unblocking short columns 910 corresponds to the position of a longitudinal row of screen holes 602.

[0028] The working process of this utility model is as follows: In use, the sealed door 5 is closed, and the powder is guided into the screening box 1 through the feed hopper 2. At this time, multiple sets of vibrating motors 605 start working, causing the screen plate 601 to vibrate under the action of the vibrating spring 604. The screen plate 601 at multiple positions systematically screens the powder, which is finally discharged through the discharge port 4. When cleaning the screen plate 601 is required, the sealed door 5 is opened, and multiple sets of slag receiving trays 8 are slidably inserted into the concave socket 7. Then, the rotary motor 905 is started, causing it to drive the hinged movable block 906 to rotate. This causes the horizontal plate 907, which was originally parallel to the fixed crossbar 9, to rotate and become perpendicular to the fixed crossbar 9. At this time, the forward and reverse motors 901 start, driving the rotating screw 902 to rotate. The threaded drive screw sleeve 903 moves laterally and regularly. Whenever it aligns with the position of a column of screen holes 602, the electric push rod 908 is activated, driving the push plate 909 to move downward. Finally, the unblocking short column 910 is inserted into the inside of the screen hole 602, squeezing out the residue attached to the hole wall and dropping it into the slag receiving tray 8. After the screen hole 602 is cleaned, the drive motor 912 is activated, driving the shaft 911 to rotate. This causes the originally parallel cleaning scraper 913 to face downward and contact the screen plate 601. Then, the cleaning scraper 913 is driven to scrape off the powder on the top surface of the screen plate 601, which falls through the screen hole 602 into the slag receiving tray 8. After cleaning, the slag receiving tray 8 can be pulled out for cleaning by pushing and pulling the handle. This method is time-saving, labor-saving, and easy to operate.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screening and automatic grading device, comprising a screening box (1), characterized in that: The top of the screening box (1) is provided with a feed hopper (2), the left and right sides of the bottom of the screening box (1) are provided with support legs (3), the bottom of the screening box (1) is provided with a discharge port (4), the front of the screening box (1) is rotatably connected with a sealing door (5), the left and right sides inside the screening box (1) are symmetrically fixed with concave support plates (6), and a screen plate (601) is provided between the two sets of concave support plates (6) on the same side. The screen plate (601) is evenly provided with screen holes (602) inside. 01) is connected to side plates (603) on both sides. Multiple sets of equally spaced vibration springs (604) are installed at the bottom of the side plates (603). A vibration motor (605) is installed on the front side of the screen plate (601). Concave sockets (7) are installed on both sides of the screen box (1) below the screen plate (601). A slag receiving plate (8) is slidably connected between two sets of concave sockets (7). A fixed crossbar (9) is installed on the back of the screen box (1) above the screen plate (601). A forward and reverse motor (901) is installed at one end of the crossbar (9). The output end of the forward and reverse motor (901) passes through the interior of the fixed crossbar (9) and is connected to a rotating screw (902). A screw sleeve (903) is threaded onto the outer side of the rotating screw (902). A hinge fixing seat (904) is installed on the front side of the screw sleeve (903). A rotating motor (905) is installed on the top of the hinge fixing seat (904). The output end of the rotating motor (905) passes through the interior of the hinge fixing seat (904) and is connected to a hinge movable block (905). 06), a horizontal plate (907) is installed at the front end of the hinged movable block (906), an electric push rod (908) is installed at the top of the horizontal plate (907), a push plate (909) is connected to the output end of the electric push rod (908), and unblocking short columns (910) are evenly distributed at the bottom of the push plate (909). A shaft (911) is rotatably connected to the left side of the horizontal plate (907) through a support plate. A drive motor (912) is connected to one end of the shaft (911), and a cleaning scraper (913) is connected to the outside of the shaft (911).

2. The vibrating screen and automatic grading device according to claim 1, characterized in that: The outer side of the screening box (1) is equipped with a controller, which is connected to the vibration motor (605), the forward and reverse motor (901), the rotary motor (905), the electric push rod (908), and the drive motor (912) by wires, and the connection is electrical.

3. The vibrating screening and automatic grading device according to claim 1, characterized in that: The bottom end of the vibration spring (604) is fixedly mounted on the concave support plate (6) on the corresponding side by bolts.

4. The vibrating screen and automatic grading device according to claim 1, characterized in that: The concave socket (7) and the slag receiving tray (8) are designed to be separable, and the front side of the slag receiving tray (8) is connected to a pull handle.

5. The vibrating screen and automatic grading device according to claim 1, characterized in that: A rectangular groove is provided inside the screening box (1) at the position corresponding to the rotating screw (902) for the screw sleeve (903) to move laterally.

6. The vibrating screen and automatic grading device according to claim 1, characterized in that: The unblocking short column (910) is wrapped with a rubber sleeve on the outside. The external structure size of the unblocking short column (910) is adapted to the internal structure size of the sieve hole (602). The unblocking short columns (910) arranged in a row correspond to the position of a longitudinal row of sieve holes (602).

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