A feed vibration grading screen

Abstract

The utility model relates to the technical field of feed vibration screens, and discloses a feed vibration grading screen, including a support frame, the inner cavity of the support frame is equipped with a support frame, the top of the support frame is fixedly equipped with a power component, the top of the support frame is equipped with a screening bin, the top of the screening bin is fixedly equipped with a feeding port, the outer wall of the screening bin is fixedly equipped with a transmission component, the bottom of the screening bin is fixedly equipped with a discharge pipe, and the inner cavity of the screening bin is fixedly equipped with a No. 1 screening plate. The feed vibration grading screen, through a moving block provided at the bottom of the screening plate and a cleaning rod provided in the inner cavity of the moving block, is driven by a booster air pump to move the cleaning rod upward, and the sieve holes on the outer wall of the screening plate can be cleaned during the upward movement of the cleaning rod, so that the sieve holes on the outer wall of the screening plate can better screen the feed, and the clogging of the screening holes is avoided to affect the normal use of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of feed vibration screens, in particular to a feed vibration grading screen. Background Art

[0002] A grading screen is a device used to grade and screen a mixture. Existing grading screens are mainly used in industry, such as the concrete industry or the mining industry. The grading screens used in these industries are relatively large in structure and the equipment is relatively rough. In the feed industry, feed is generally made by mixing various raw materials and then crushing them. In order to improve the overall quality of the feed, a grading screen is often required to screen the produced feed to obtain feed of consistent quality.

[0003] When the traditional grading screening equipment is in use, the feed will vibrate repeatedly on the outer wall of the screen during the screening process. However, some feed will be stuck in the screen holes of the screen during the vibration. At this time, the outer wall of the screen will be blocked, and the screening operation cannot be carried out smoothly, thus affecting the normal use of the equipment. In addition, the traditional equipment cannot clean the outer wall of the screen well. Once the screen is blocked, the screening effect is greatly reduced. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a feed vibration grading screen, which has the advantages of good screening effect and convenient cleaning, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical scheme: a feed vibration grading screen comprises a support frame, the inner cavity of the support frame is installed with a support frame, the top of the support frame is fixedly equipped with a power component, the top of the support frame is installed with a screening bin, the top of the screening bin is fixedly equipped with a feed discharge port, the outer wall of the screening bin is fixedly equipped with a transmission component, the bottom of the screening bin is fixedly equipped with a discharge pipe, the inner cavity of the screening bin is fixedly equipped with a No. 1 screening plate, the inner cavity of the screening bin is fixedly equipped with a No. 2 screening plate, and the A driving motor is installed on the outer wall of the No. 2 screening plate, a screw is movably mounted on the outer wall of the No. 2 screening plate, a moving block is threadedly connected to the outer wall of the screw, a booster air pump is fixedly installed on the inner wall of the screening bin, a connecting pipe is installed on the outer wall of the booster air pump, a cleaning rod is movably mounted in the inner cavity of the moving block, a rotating rod is rotatably connected in the inner cavity of the discharge pipe, a blade is fixedly mounted on the outer wall of the rotating rod, a trigger rod is fixedly mounted on the outer wall of the rotating rod, and a trigger switch is fixedly mounted on the outer wall of the discharge pipe.

[0006] As a preferred technical solution of the utility model: the inner cavity of the feed port is communicated with the inner cavity of the screening bin, and the power output shaft of the drive motor is connected to the outer wall of the screw.

[0007] As a preferred technical solution of the utility model: there are two screw rods, and the two screw rods are respectively installed on both sides of the outer wall at the bottom of the second screening plate.

[0008] As a preferred technical solution of the utility model: the outer wall of the second screening plate is provided with screening holes, and the outer wall diameter of the cleaning rod is smaller than the inner wall diameter of the screening holes.

[0009] As a preferred technical solution of the utility model: the inner cavity of the moving block is provided with a ventilation groove, the inner cavity of the connecting pipe is communicated with the inner cavity of the moving block, and one end of the connecting pipe close to the booster air pump is connected to the air outlet of the booster air pump.

[0010] As a preferred technical solution of the utility model: a controller and a frequency monitor are fixedly installed at the bottom of the screening bin, and the controller is electrically connected to the frequency monitor, the drive motor, the trigger switch, and the booster air pump respectively.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The feed vibration grading screen has a moving block arranged at the bottom of the screening plate and a cleaning rod arranged in the inner cavity of the moving block. The cleaning rod is driven by a booster air pump to move upward. In the process of the cleaning rod moving upward, the sieve holes on the outer wall of the screening plate can be cleaned, so that the sieve holes on the outer wall of the screening plate can better screen the feed and avoid clogging of the screening holes to affect the normal use of the equipment.

[0013] 2. The feed vibration grading screen has a rotating rod arranged in the inner cavity of the feed discharge pipe. When the outer wall of the screening plate is blocked, the feed cannot pass through the screening plate smoothly, resulting in a decrease in the amount of feed discharged from the feed discharge pipe, thereby reducing the rotation speed of the rotating rod, and further reducing the frequency of the trigger rod contacting the trigger switch. The frequency monitor can detect it in time, and the controller can be used to start the drive motor and the boost air pump to achieve automatic control and automatic cleaning effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the screening bin of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the No. 2 screening plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the movable block of the utility model;

[0018] Figure 5This is a schematic diagram of the cross-sectional structure of the discharge pipe of the utility model.

[0019] In the figure: 1. Support frame; 2. Support frame; 3. Power assembly; 4. Transmission assembly; 5. Screening bin; 6. Feeding port; 7. Discharging pipe; 8. Screening plate No. 1; 9. Screening plate No. 2; 10. Driving motor; 11. Screw; 12. Moving block; 13. Booster air pump; 14. Connecting pipe; 15. Cleaning rod; 16. Rotating rod; 17. Blade; 18. Trigger rod; 19. Trigger switch. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A feed vibration grading screen comprises a support frame 1, a support frame 2 is installed in the inner cavity of the support frame 1, a power assembly 3 is fixedly installed on the top of the support frame 2, a screening bin 5 is installed on the top of the support frame 2, a feeding port 6 is fixedly installed on the top of the screening bin 5, a transmission assembly 4 is fixedly installed on the outer wall of the screening bin 5, a discharge pipe 7 is fixedly installed on the bottom of the screening bin 5, a No. 1 screening plate 8 is fixedly installed in the inner cavity of the screening bin 5, a No. 2 screening plate 9 is fixedly installed in the inner cavity of the screening bin 5, and a driving motor is installed on the outer wall of the No. 2 screening plate 9 10. The outer wall of the No. 2 screening plate 9 is movably sleeved with a screw rod 11, and the outer wall of the screw rod 11 is threadedly connected with a moving block 12, the inner wall of the screening bin 5 is fixedly equipped with a booster air pump 13, and the outer wall of the booster air pump 13 is installed with a connecting pipe 14, a cleaning rod 15 is movably sleeved in the inner cavity of the moving block 12, a rotating rod 16 is rotatably connected in the inner cavity of the discharge pipe 7, a blade 17 is fixedly installed on the outer wall of the rotating rod 16, a trigger rod 18 is fixedly installed on the outer wall of the rotating rod 16, and a trigger switch 19 is fixedly installed on the outer wall of the discharge pipe 7.

[0022] By setting a support frame 2 in the inner cavity of the support frame 1, and installing a transmission assembly 4 and a screening bin 5 on the top of the support frame 2, when the equipment needs to be used, the transmission assembly 4 and the screening bin 5 can be swung under the action of the power assembly 3, and the material in the inner cavity of the screening bin 5 can be screened during the swinging process.

[0023] In a preferred embodiment, the inner cavity of the discharge port 6 is communicated with the inner cavity of the screening bin 5 , and the power output shaft of the driving motor 10 is connected to the outer wall of the screw 11 .

[0024] By connecting the inner cavity of the discharge port 6 with the inner cavity of the screening bin 5, materials can be added to the inner cavity of the screening bin 5 through the discharge port 6, and the outer wall of the screw 11 is connected to the power output shaft of the driving motor 10, so that the screw 11 can rotate under the drive of the driving motor 10, thereby realizing the driving of the moving block 12.

[0025] In a preferred embodiment, there are two screw rods 11 , and the two screw rods 11 are respectively installed on both sides of the outer wall at the bottom of the second screening plate 9 .

[0026] By arranging two screws 11 on both sides of the bottom of the second screening plate 9, and the screws 11 on both sides can rotate simultaneously under the drive of the driving motor 10, the moving block 12 can move back and forth better on the outer wall of the screw 11, thereby realizing the adjustment of the position of the moving block 12.

[0027] In a preferred embodiment: the outer wall of the second sieve plate 9 is provided with sieve holes, and the outer wall diameter of the cleaning rod 15 is smaller than the inner wall diameter of the sieve holes.

[0028] By setting a cleaning rod 15 in the inner cavity of the moving block 12, since a ventilation groove is opened in the inner cavity of the moving block 12, when the booster air pump 13 supplies air to the inner cavity of the moving block 12 through the connecting pipe 14, the bottom of the cleaning rod 15 will be lifted up by the action of the gas, so that the outer wall of the cleaning rod 15 can enter the sieve holes on the outer wall of the No. 2 screening plate 9, thereby cleaning the sieve holes and clearing the feed particles blocked in the sieve holes.

[0029] In a preferred embodiment, a ventilation groove is provided in the inner cavity of the moving block 12 , the inner cavity of the connecting pipe 14 is communicated with the inner cavity of the moving block 12 , and one end of the connecting pipe 14 close to the booster air pump 13 is connected to the air outlet of the booster air pump 13 .

[0030] By means of a booster air pump 13 arranged on the inner wall of the screening bin 5, air is supplied to the inner cavity of the moving block 12 under the action of the booster air pump 13, so that the bottom of the cleaning rod 15 can move upward after being impacted by the gas, and the sieve holes on the outer wall of the No. 2 screening plate 9 can be poked open to achieve the effect of dredging.

[0031] In a preferred embodiment, a controller and a frequency monitor are fixedly mounted on the bottom of the screening bin 5, and the controller is electrically connected to the frequency monitor, the drive motor 10, the trigger switch 19, and the booster air pump 13 respectively.

[0032] By means of the controller and frequency monitor arranged at the bottom of the screening bin 5, during the normal screening and unloading process of the screening bin 5, the speed at which the material falls from the inner cavity of the No. 1 screening plate 8 is constant. Once the outer wall of the No. 2 screening plate 9 is blocked, the unloading speed will decrease, which will cause the speed of the rotating rod 16 to slow down and the frequency of the trigger switch 19 triggered by the trigger rod 18 to decrease, so that it can be discovered in time under the action of the frequency analyzer.

[0033] Working principle: During the use of the above-mentioned equipment, when the equipment is needed to screen the feed, the feed is added to the inner cavity of the screening bin 5 through the discharge port 6, and then the power component 3 is started. At this time, the transmission component 4 and the screening bin 5 can be driven to swing under the action of the power component 3, so that the screening bin 5 swings on the top of the support frame 2, thereby realizing the screening of the feed, and in the process of screening, the feed will pass through the outer walls of the No. 1 screening plate 8 and the No. 2 screening plate 9 respectively and fall into the discharge pipe 7 below, thereby realizing the screening of the feed, and in the process of screening, the sieve holes on the outer wall of the No. 2 screening plate 9 will be blocked. At this time, the feed cannot pass through the outer wall of the No. 2 screening plate 9 smoothly, resulting in a reduction in the amount of material discharged from the inner cavity of the discharge pipe 7. When the amount of material discharged is reduced, the leaves on the outer wall of the rotating rod 16 are The speed at which the sheet 17 is pushed will decrease, thereby reducing the frequency at which the trigger switch 19 is triggered within a certain period of time, so that it is discovered in time under the action of the frequency monitor, and the drive motor 10 is started through the controller. Under the action of the drive motor 10, the moving block 12 moves along the outer wall of the screw 11, and the drive motor 10 is started in stages under the action of the controller, so that the distance that the moving block 12 can move on the screw 11 can be equal to the distance between two adjacent rows of sieve holes, so that the bottom of the moving block 12 is always at the bottom of the sieve hole. When the moving block 12 moves to the bottom of the sieve hole, the booster air pump 13 is started through the controller, and the cleaning rod 15 is driven to move upward under the action of the booster air pump 13, so that the cleaning rod 15 enters the interior of the sieve hole to clean the sieve hole.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feed vibrating grading screen, comprising a support frame (1), characterized in that: The inner cavity of the support frame (1) is installed with a support frame (2), the top of the support frame (2) is fixedly equipped with a power assembly (3), the top of the support frame (2) is installed with a screening bin (5), the top of the screening bin (5) is fixedly equipped with a discharge port (6), the outer wall of the screening bin (5) is fixedly equipped with a transmission assembly (4), the bottom of the screening bin (5) is fixedly equipped with a discharge pipe (7), the inner cavity of the screening bin (5) is fixedly equipped with a No. 1 screening plate (8), the inner cavity of the screening bin (5) is fixedly equipped with a No. 2 screening plate (9), the outer wall of the No. 2 screening plate (9) is fixedly equipped with a driving motor (10), and the No. 2 screening plate (8) is fixedly equipped with a No. 1 screening plate (9). The outer wall of the plate (9) is movably sleeved with a screw rod (11), the outer wall of the screw rod (11) is threadedly connected with a moving block (12), the inner wall of the screening bin (5) is fixedly equipped with a booster air pump (13), the outer wall of the booster air pump (13) is installed with a connecting pipe (14), the inner cavity of the moving block (12) is movably sleeved with a cleaning rod (15), the inner cavity of the discharge pipe (7) is rotatably connected with a rotating rod (16), the outer wall of the rotating rod (16) is fixedly equipped with a blade (17), the outer wall of the rotating rod (16) is fixedly equipped with a trigger rod (18), and the outer wall of the discharge pipe (7) is fixedly equipped with a trigger switch (19).

2. A feed vibration grading screen according to claim 1, characterized in that: The inner cavity of the feed port (6) is in communication with the inner cavity of the screening bin (5), and the power output shaft of the drive motor (10) is connected to the outer wall of the screw (11).

3. A feed vibrating grading screen according to claim 1, characterized in that: There are two screw rods (11), and the two screw rods (11) are respectively installed on both sides of the outer wall at the bottom of the second screening plate (9).

4. A feed vibrating grading screen according to claim 1, characterized in that: The outer wall of the second sieve plate (9) is provided with sieve holes, and the outer wall diameter of the cleaning rod (15) is smaller than the inner wall diameter of the sieve holes.

5. The feed vibrating grading screen according to claim 1, characterized in that: The inner cavity of the moving block (12) is provided with a ventilation groove, the inner cavity of the connecting pipe (14) is communicated with the inner cavity of the moving block (12), and one end of the connecting pipe (14) close to the booster air pump (13) is connected to the air outlet of the booster air pump (13).

6. A feed vibrating grading screen according to claim 1, characterized in that: A controller and a frequency monitor are fixedly mounted on the bottom of the screening bin (5), and the controller is electrically connected to the frequency monitor, the drive motor (10), the trigger switch (19), and the booster air pump (13) respectively.

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