Automatic screen cleaning device for screening equipment

Abstract

The utility model provides an automatic screen cleaning device for screening equipment. The automatic screen cleaning device comprises a box body, a partition plate is fixed in the box body, rotatable screen plates are arranged on the two sides of the partition plate, a conveying pipe which is rotationally connected with the top of the box body penetrates through the top of the box body, the discharging ends of the conveying pipe can be alternately located above the two screen plates, and a first motor used for driving the conveying pipe is fixed to the box body; a collecting frame is arranged in the box body, an electric telescopic rod used for driving the collecting frame to alternately move to the position below the sieve plate is arranged on the box body, and an opening allowing the collecting frame to penetrate through is formed in the box body; two lifting plates capable of ascending and descending are arranged in the box body, the two lifting plates are arranged above the two sieve plates respectively, and inserting rods capable of being inserted into sieve holes of the sieve plates are fixed to the lifting plates. Compared with the prior art, impurities accumulated on the sieve plate can be quickly and automatically cleaned, shutdown is not needed when the sieve plate is cleaned, the fertilizer screening efficiency is improved, and the labor burden of workers is relieved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and in particular to an automatic cleaning device for screens used in screening equipment. Background Technology

[0002] Fertilizer refers to a substance that provides one or more essential nutrients for plants, improves soil properties, and enhances soil fertility. It is one of the material foundations of agricultural production. During the fertilizer production process, screening equipment is needed to screen the fertilizer to remove impurities and ensure the quality of the fertilizer after production. However, current screening devices require workers to manually clean the screen plates regularly to remove impurities clogging the screen holes. The entire operation is time-consuming and labor-intensive, and if impurities are not cleaned in time, the screening efficiency and effect of the screen plates on fertilizer will be reduced. Utility Model Content

[0003] This utility model discloses an automatic screen cleaning device for screening equipment, which solves the problem that requires staff to manually clean the screen plate at regular intervals, which is time-consuming and labor-intensive. If impurities are not cleaned in time, the screening efficiency and screening effect of the screen plate for fertilizer will be reduced.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An automatic screen cleaning device for screening equipment includes a housing, a partition fixed inside the housing, rotatable screen plates on both sides of the partition, a conveying pipe rotatably connected to the top of the housing and whose discharge end can alternately be positioned above the two screen plates, and a motor for driving the conveying pipe fixed on the housing; a collection frame is provided inside the housing, and an electric telescopic rod is provided on the housing for driving the collection frame to alternately move below the screen plates, and an opening is provided on the housing for the collection frame to pass through; two liftable lifting plates are provided inside the housing, each above one of the two screen plates, and a rod for inserting into the screen holes of the screen plate is fixed on the lifting plate.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] First, position the discharge end of the conveying pipe above one screen plate and the collection frame below the other screen plate. Once the fertilizer is discharged through the discharge end of the conveying pipe and falls onto the screen plate, the screen plate can begin screening the fertilizer, separating large particles from it. The fertilizer then falls downwards through the screen holes on the screen plate, completing the screening process. After one screen plate has been used for a period of time, motor number one drives the conveying pipe to rotate, positioning the discharge end of the conveying pipe above the other screen plate. Simultaneously, the electric telescopic rod drives the collection frame to move to below the previously used screen plate. Then, the used screen plate rotates, causing the screen plate to... The top and bottom positions of the screen plates are swapped, and the impurities accumulated on the screen plates fall into the collection frame. Then, the lifting plate corresponding to the used screen plate moves downward, allowing the insert rod to be inserted into the screen holes to push out the impurities blocking the screen holes. The other screen plate then continues to screen the fertilizer. The above operation is repeated to allow the two screen plates to screen the fertilizer alternately. Unused screen plates can be automatically cleaned. This utility model can quickly and automatically clean the impurities accumulated on the screen plates without stopping the machine, improving the screening efficiency of fertilizer and reducing the workload of the workers. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the structure of this utility model.

[0010] In the diagram: 1. Box body; 2. Partition plate; 21. Guide plate; 3. Screen plate; 31. Limiting frame; 4. Collection frame; 41. Electric telescopic rod; 42. Opening; 43. Bearing bar; 5. Conveying pipe; 51. Motor No. 1; 52. Transmission belt; 6. Lifting plate; 61. Insertion rod; 62. Automatic telescopic rod; 7. Motor No. 2; 8. Discharge plate; 9. Discharge port. Detailed Implementation

[0011] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0012] like Figure 1 and Figure 2As shown, this utility model provides an automatic screen cleaning device for screening equipment, including a housing 1, a partition 2 fixed inside the housing 1, and rotatable screen plates 3 on both sides of the partition 2. A conveying pipe 5, rotatably connected to the top of the housing 1 and whose discharge end can alternately be positioned above the two screen plates 3, is passed through the top of the housing 1. A motor 51 for driving the conveying pipe 5 is fixed on the housing 1. A collection frame 4 is provided inside the housing 1, and an electric telescopic rod 41 for driving the collection frame 4 to alternately move below the screen plates 3 is provided on the housing 1. An opening 42 is provided on the housing 1 for the collection frame 4 to pass through. Two lifting plates 6 are provided inside the housing 1, and the two lifting plates 6 are respectively above the two screen plates 3. An insertion rod 61 for inserting into the screen holes of the screen plate 3 is fixed on the lifting plate 6. The discharge end of the conveying pipe 5 is located on one side of the feed end of the conveying pipe 5, and the feed end of the conveying pipe 5 corresponds to the partition 2 (e.g., Figure 1 (As shown in the diagram); after the No. 1 motor 51 drives the conveying pipe 5 to rotate, the discharge end of the conveying pipe 5 is alternately positioned above the two screen plates 3. When one screen plate 3 is screening fertilizer, the collection frame 4 is located directly below the other screen plate 3 (the screen plate 3 after use). The other screen plate 3 starts to rotate, and after the top and bottom are switched, the impurities on the screen plate 3 fall downward into the collection frame 4. The lifting plate 6 corresponding to the screen plate 3 moves downward, so that the insertion rod 61 is inserted into the screen hole on the screen plate 3 to clean the impurities blocking the screen hole and let the impurities enter the collection frame 4. The collection frame 4 is alternately positioned below the two screen plates 3. After collecting the impurities on the screen plates 3, the electric telescopic rod 41 can drive the collection frame 4 to pass through the opening 42 and move to the outside of the box 1, so that the staff can handle the impurities in the collection frame 4.

[0013] like Figure 1 As shown, the top and bottom of the sieve plate 3 are fixed with limit frames 31, and the two sides of the housing 1 are fixed with a second motor 7. The rotating shaft of the second motor 7 passes through the housing 1 and is fixed to the sieve plate 3. After starting the second motor 7, the sieve plate 3 can be driven to rotate. The limit frames 31 can block the impurities on the sieve plate 3, so that the fertilizer can fall into the collection frame 4 better. The second motor 7 is a servo motor. When the fertilizer is screened on the sieve plate 3, the sieve plate 3 can be rotated repeatedly. The limit frames 31 can block the fertilizer, so that the fertilizer rolls repeatedly, avoiding the fertilizer from piling up and improving the screening efficiency of the fertilizer.

[0014] like Figure 1As shown, two symmetrical guide plates 21 are fixed to both sides of the partition 2. The guide plates 21 are inclined, and the opposite sides of the two guide plates 21 are fixed to the inner wall of the box 1. The guide plates 21 are located between the sieve plate 3 and the collection frame 4. The guide plates 21 can block the downward falling fertilizer or impurities, making the fertilizer fall more concentratedly downward. There are two electric telescopic rods 41. The two electric telescopic rods 41 are located directly below the two symmetrical guide plates 21. This can effectively prevent fertilizer or impurities from contacting the telescopic ends of the electric telescopic rods 41 and affecting their normal use. The fixed ends of the electric telescopic rods 41 are fixed to the box 1 by fixing plates, and the telescopic ends of the electric telescopic rods 41 pass through the box 1 and connect to the collection frame 4.

[0015] like Figure 1 As shown, two symmetrically arranged support bars 43 are fixed inside the housing 1. One side of each support bar 43 passes through the opening 42, and the bottom of the collection frame 4 is slidably connected to the support bar 43. There are two support bars 43, symmetrically distributed front and back. The support bars 43 increase the stability of the collection frame 4 during movement and reduce the pressure on the extension end of the electric telescopic rod 41. Furthermore, the guide plate 21 can block the support bars 43, preventing fertilizer from falling onto them.

[0016] like Figure 1 As shown, a discharge port 9 is provided on one side of the box body 1. Inside the box body 1, a feed plate 8 is fixed below the collection frame 4 and is inclined. One side of the feed plate 8 passes through the discharge port 9. After the fertilizer is screened and falls down onto the feed plate 8, it can slide down the feed plate 8 toward the discharge port 9, allowing the fertilizer to be discharged through the discharge port 9.

[0017] like Figure 1 As shown, two automatic telescopic rods 62 are fixed to the top of the box 1. The telescopic ends of the automatic telescopic rods 62 pass through the top of the box 1 and are connected to the lifting plate 6. A transmission belt 52 is provided on the box 1, and the shaft of the first motor 51 is connected to the conveying pipe 5 through the transmission belt. Both the automatic telescopic rods 62 and the electric telescopic rods 41 are servo motors. After the automatic telescopic rods 62 are started, the lifting plate 6 can be moved downward, so that the insertion rod 61 can be inserted into the screen hole on the screen plate 3. Pullers are fixed on the shaft of the first motor 51 and the conveying pipe 5, so that after the first motor 51 is started, the transmission belt 52 drives the conveying pipe 5 to rotate.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic screen cleaning device for screening equipment, comprising a housing (1), characterized in that: A partition (2) is fixed inside the box (1). Rotatable screen plates (3) are provided on both sides of the partition (2). A conveying pipe (5) with a rotating connection and whose discharge end can be alternately located above the two screen plates (3) is passed through the top of the box (1). A No. 1 motor (51) for driving the conveying pipe (5) is fixed on the box (1). A collection frame (4) is provided inside the box (1). An electric telescopic rod (41) for driving the collection frame (4) to move alternately below the screen plate (3) is provided on the box (1). An opening (42) for the collection frame (4) to pass through is provided on the box (1). Two lifting plates (6) are provided inside the box (1). The two lifting plates (6) are respectively above the two screen plates (3). An insertion rod (61) that can be inserted into the screen hole of the screen plate (3) is fixed on the lifting plate (6).

2. The automatic screen cleaning device for screening equipment according to claim 1, characterized in that: Limit frames (31) are fixed at the top and bottom of the sieve plate (3), and a second motor (7) is fixed on both sides of the box (1). The rotating shaft of the second motor (7) passes through the box (1) and is fixed to the sieve plate (3).

3. The automatic screen cleaning device for screening equipment according to claim 1, characterized in that: Two symmetrical guide plates (21) are fixed on both sides of the partition (2). The guide plates (21) are inclined and the opposite sides of the two guide plates (21) are fixed to the inner wall of the box (1). The guide plates (21) are located between the sieve plate (3) and the collection frame (4).

4. The automatic screen cleaning device for screening equipment according to claim 1, characterized in that: The box (1) has two symmetrical support bars (43) fixed inside. One side of the support bar (43) passes through the opening (42), and the bottom of the collection frame (4) is slidably connected to the support bar (43).

5. The automatic screen cleaning device for screening equipment according to claim 1, characterized in that: The box (1) has a discharge port (9) on one side. Inside the box (1) is a feeding plate (8) located below the collection frame (4) and set at an inclination. One side of the feeding plate (8) passes through the discharge port (9).

6. The automatic screen cleaning device for screening equipment according to claim 1, characterized in that: The top of the box (1) is fixed with two automatic telescopic rods (62), the telescopic ends of which pass through the top of the box (1) and are connected to the lifting plate (6); the box (1) is provided with a transmission belt (52), and the shaft of the No. 1 motor (51) is connected to the material conveying pipe (5) through the transmission belt.

Images