Grade screening device

Abstract

The utility model relates to a breakage-proof red date grade screening device, in particular to a grade screening device which comprises a screening box, a feeding hopper is installed on the upper surface of the screening box, a material control box is installed on the lower surface of the feeding hopper, a flow dividing assembly is arranged in the material control box, and flow dividing fan blades are driven by a servo motor a to rotate. The red dates are put into the screening box in batches, the baffles buffer the red dates entering the screening box, the red dates are prevented from being damaged in the feeding process, the servo motor b drives the three pairs of scraping plates to push the red dates on the upper surfaces of the screening plate a, the screening plate b and the screening plate c to move correspondingly, and the red dates are screened; and meanwhile, the red dates are prevented from being accumulated to block meshes in the upper surfaces of the sieve plate a and the sieve plate b, and the problems that in the vibration screening process of an existing device for the red dates, red date skins are prone to being damaged during fresh date screening, and the red date quality is affected are solved.

Description

Technical Field

[0001] The utility model relates to a grade screening device, in particular to a damage-resistant red date grade screening device. Background Art

[0002] Red dates are known as the "king of vitamins". They can provide the human body with a variety of trace elements and have the effect of nourishing blood and beauty. They can be eaten in a variety of ways, such as soaking in water or making soup. The newly harvested red dates are of different sizes and need to be sorted and classified according to their size. The general red date sorting machine only has two screening results: large and small red dates.

[0003] The existing red dates size screening device generally adopts a high-frequency vibration screening machine to screen the red dates. During the vibration screening process of the red dates, the high-frequency vibration screening machine is easy to cause damage to the outer skin of the red dates when screening the fresh dates, affecting the quality of the red dates, and has certain limitations in use. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a grade screening device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grade screening device, comprising a screening box, a feed hopper is installed on the upper surface of the screening box, a material control box is installed on the lower surface of the feed hopper, a diversion assembly is arranged inside the material control box, the front and back sides of the inner wall of the screening box are rotatably connected to the front and back sides of the sieve plates a, b and c respectively, the right side surface of the screening box is fixedly connected to the left side surface of the fixed frame, a discharge assembly is arranged on the upper surface of the fixed frame, a mounting plate is fixedly connected to the lower side of the inner wall of the screening box, and an anti-blocking assembly is arranged on the lower surface of the mounting plate.

[0006] Preferably, the anti-blocking component includes a servo motor b installed on the lower surface of the mounting plate, the output shaft of the servo motor b passes through the bearing clamped on the lower surface of the mounting plate and is fixedly connected to the bottom end of the connecting rod, the top end of the connecting rod passes through the through holes opened on the lower surfaces of the sieve plates a, b and c and is fixedly connected to the lower surface of the baffle, six slot plates are symmetrically fixedly connected to the left and right side surfaces of the connecting rod, and the six slot plates are arranged in pairs corresponding to each other, and a number of springs are respectively fixedly connected to the upper surfaces of the inner walls of the slot plates, and the lower surfaces of the springs are fixedly connected to the upper surface of the scraper.

[0007] Preferably, the diversion assembly includes a diversion blade rotatably connected to the back of the inner wall of the material control box, and one end of the front of the diversion blade passes through a bearing clamped on the front of the inner wall of the material control box and is fixedly connected to the output shaft of a servo motor a, and the servo motor a is installed on the front of the screening box.

[0008] Preferably, the discharging assembly includes a stepper motor mounted on the upper surface of the fixed frame, the output shaft of the stepper motor passes through a bearing clamped on the upper surface of the fixed frame and is fixedly connected to the top end of the screw, the outer surface of the screw is respectively threadedly connected with three threaded sleeves, and the left sides of the three threaded sleeves are respectively hinged to the right sides of the screen plate a, the screen plate b and the screen plate c through three connecting blocks.

[0009] Preferably, three discharge ports are respectively provided on the left side of the screening box, and the three discharge ports correspond to the positions of the sieve plate a, the sieve plate b and the sieve plate c respectively.

[0010] Preferably, three slide rails a and slide rails b are fixedly connected to the left side of the screening box, and the three slide rails a and slide rails b are arranged in one-to-one correspondence, and the sides of the inner walls of the slide rails a and slide rails b that are away from each other are respectively slidably connected to the upper surface and lower surface of the sealing plate, and the position of the sealing plate corresponds to the position of the discharge port.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model drives the diversion fan blades to rotate by the servo motor a, and the red dates are put into the screening box in batches. The baffle plate buffers the red dates entering the screening box to prevent the red dates from being damaged during the feeding process. The servo motor b drives three pairs of scrapers to respectively push the red dates on the upper surfaces of the sieve plates a, b and c to move, and screen the red dates. At the same time, it prevents the red dates from accumulating and clogging the mesh holes on the upper surfaces of the sieve plates a and b, and solves the problem that the existing device, in the process of vibrating the screening of red dates, is prone to damage to the outer skin of the red dates when screening fresh dates, thereby affecting the quality of the red dates. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in the front view;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the sieve plate a, sieve plate b and sieve plate c in the utility model;

[0017] In the figure: 1. Screening box; 2. Feed hopper; 3. Material control box;

[0018] Diverter assembly: 41, diverter blade; 42, servo motor a; 5, mounting plate;

[0019] Anti-blocking components: 61, servo motor b; 62, connecting rod; 63, slot plate; 64, spring; 65, scraper; 7, fixing frame;

[0020] Discharging assembly: 81, stepping motor; 82, screw; 83, threaded sleeve; 84, connecting block;

[0021] 9. Sieve plate a; 10. Sieve plate b; 11. Sieve plate c; 12. Through hole; 13. Baffle plate; 14. Discharge port; 15. Slide rail a; 16. Sealing plate; 17. Slide rail b. DETAILED DESCRIPTION

[0022] 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.

[0023] Example

[0024] See also Figure 1-3 The utility model provides the following technical solutions: a grade screening device, comprising a screening box 1, a feed hopper 2 is installed on the upper surface of the screening box 1, a material control box 3 is installed on the lower surface of the feed hopper 2, a diversion component is arranged inside the material control box 3, the front and back sides of the inner wall of the screening box 1 are rotatably connected to the front and back sides of the sieve plates a9, b10 and c11 respectively, the right side of the screening box 1 is fixedly connected to the left side of the fixing frame 7, a discharging component is arranged on the upper surface of the fixing frame 7, a mounting plate 5 is fixedly connected to the lower side of the inner wall of the screening box 1, and an anti-blocking component is arranged on the lower surface of the mounting plate 5.

[0025] Specifically, the anti-blocking component includes a servo motor b61 installed on the lower surface of the mounting plate 5, the output shaft of the servo motor b61 passes through the bearing clamped on the lower surface of the mounting plate 5 and is fixedly connected to the bottom end of the connecting rod 62, the top end of the connecting rod 62 passes through the through hole 12 opened on the lower surface of the sieve plate a9, the sieve plate b10 and the sieve plate c11 and is fixedly connected to the lower surface of the baffle 13, six slot plates 63 are symmetrically fixedly connected to the left and right side surfaces of the connecting rod 62, and the six slot plates 63 are arranged in pairs corresponding to each other, and the upper surfaces of the inner walls of the slot plates 63 are respectively fixedly connected with a plurality of springs 64, and the lower surfaces of the springs 64 are fixedly connected to the upper surface of the scraper 65;

[0026] The servo motor b61 drives the connecting rod 62 to rotate, and the rotation of the connecting rod 62 drives the slot plate 63 and the scraper 65 to rotate. The three pairs of scrapers 65 push the red dates on the upper surfaces of the sieve plates a9, b10 and c11 to move, so as to prevent the red dates from clogging the mesh holes on the upper surfaces of the sieve plates a9 and b10;

[0027] At the same time, when discharging, the servo motor b61 drives the connecting rod 62 and the scraper 65 to stop rotating, and the sieve plates a9, b10 and c11 are tilted under the drive of the discharging assembly, and the compression spring 64 of the scraper 65 shrinks to the inside of the trough plate 63 when the sieve plates a9, b10 and c11 are tilted, which will not affect the discharging of red dates.

[0028] Specifically, the diversion assembly includes a diversion blade 41 rotatably connected to the back of the inner wall of the material control box 3, one end of the front side of the diversion blade 41 passes through a bearing clamped on the front side of the inner wall of the material control box 3 and is fixedly connected to the output shaft of the servo motor a42, and the servo motor a42 is installed on the front side of the screening box 1;

[0029] The red dates to be screened are poured into the feed hopper 2, and the servo motor a42 drives the diversion fan blade 41 to rotate, and then the red dates are put into the screening box 1 in batches. The baffle 13 buffers the red dates entering the screening box 1, thereby preventing the red dates from being damaged during the feeding process.

[0030] Specifically, the discharging assembly includes a stepper motor 81 mounted on the upper surface of the fixing frame 7, the output shaft of the stepper motor 81 passes through the bearing clamped on the upper surface of the fixing frame 7 and is fixedly connected to the top of the screw 82, the outer surface of the screw 82 is respectively threadedly connected with three threaded sleeves 83, and the left sides of the three threaded sleeves 83 are respectively hinged to the right sides of the sieve plate a9, the sieve plate b10 and the sieve plate c11 through three connecting blocks 84;

[0031] The stepper motor 81 drives the screw 82 to rotate, and the rotation of the screw 82 drives the threaded sleeve 83 to move upward. The upward movement of the threaded sleeve 83 drives the right sides of the sieve plates a9, b10 and c11 to move upward through the connecting block 84, thereby causing the sieve plates a9, b10 and c11 to tilt, so that the screened red dates are discharged from the screening box 1 through the discharge port 14.

[0032] Specifically, three discharge ports 14 are respectively provided on the left side of the screening box 1, and the three discharge ports 14 correspond to the positions of the sieve plate a9, the sieve plate b10 and the sieve plate c11 respectively;

[0033] Specifically, three slide rails a15 and three slide rails b17 are fixedly connected to the left side of the screening box 1, and the three slide rails a15 and three slide rails b17 are arranged one by one, and the inner walls of the slide rails a15 and b17 are away from each other. The sides are slidably connected to the upper surface and the lower surface of the sealing plate 16, and the position of the sealing plate 16 corresponds to the position of the discharge port 14;

[0034] The sealing plate 16 is pulled to be removed from the slide rails a15 and b17 , thereby leaking out of the discharge port 14 , so that the sieved red dates are discharged through the discharge port 14 .

[0035] The working principle and use process of this utility model:

[0036] The utility model, when in use;

[0037] The red dates to be screened are poured into the feed hopper 2, and the servo motor a42 drives the diversion blade 41 to rotate, and then the red dates are put into the screening box 1 in batches. The baffle 13 buffers the red dates entering the screening box 1, thereby preventing the red dates from being damaged during the feeding process. The servo motor b61 drives the connecting rod 62 to rotate, and the rotation of the connecting rod 62 drives the groove plate 63 and the scraper 65 to rotate. The three pairs of scrapers 65 push the red dates on the upper surfaces of the sieve plates a9, b10 and c11 to move respectively, so as to prevent the red dates from accumulating and blocking the sieve plates a9 and b10. 10, the mesh on the upper surface of the jujube is screened at the same time, the stepper motor 81 drives the screw 82 to rotate, the rotation of the screw 82 drives the threaded sleeve 83 to move upward, the threaded sleeve 83 moves upward and drives the right side of the sieve plate a9, the sieve plate b10 and the sieve plate c11 to move upward through the connecting block 84, thereby making the sieve plates a9, the sieve plates b10 and the sieve plates c11 tilted, so that the screened red dates enter the discharge port 14, pull the sealing plate 16, and take the sealing plate 16 out of the slide rails a15 and the slide rails b17, and then leak out of the discharge port 14, and then take out the screened red dates respectively.

[0038] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A grade screening device, comprising a screening box (1), characterized in that: A feed hopper (2) is installed on the upper surface of the screening box (1), a material control box (3) is installed on the lower surface of the feed hopper (2), a flow dividing assembly is arranged inside the material control box (3), the front and back sides of the inner wall of the screening box (1) are rotatably connected to the front and back sides of the sieve plate a (9), the sieve plate b (10) and the sieve plate c (11), respectively, the right side surface of the screening box (1) is fixedly connected to the left side surface of the fixing frame (7), a material discharging assembly is arranged on the upper surface of the fixing frame (7), a mounting plate (5) is fixedly connected to the lower side of the inner wall of the screening box (1), and an anti-blocking assembly is arranged on the lower surface of the mounting plate (5).

2. A grade screening device according to claim 1, characterized in that: The anti-blocking component comprises a servo motor b (61) mounted on the lower surface of the mounting plate (5); the output shaft of the servo motor b (61) passes through a bearing clamped on the lower surface of the mounting plate (5) and is fixedly connected to the bottom end of a connecting rod (62); the top end of the connecting rod (62) passes through a through hole (12) provided on the lower surfaces of sieve plates a (9), sieve plates b (10) and sieve plates c (11) and is fixedly connected to the lower surface of a baffle (13); six slot plates (63) are symmetrically fixedly connected to the left and right side surfaces of the connecting rod (62), and the six slot plates (63) are arranged in pairs corresponding to each other; a plurality of springs (64) are respectively fixedly connected to the upper surface of the inner wall of the slot plate (63); the lower surface of the spring (64) is fixedly connected to the upper surface of a scraper (65).

3. A grade screening device according to claim 1, characterized in that: The diversion assembly comprises a diversion blade (41) rotatably connected to the back of the inner wall of the material control box (3); one end of the front side of the diversion blade (41) passes through a bearing clamped on the front side of the inner wall of the material control box (3) and is fixedly connected to the output shaft of a servo motor a (42); and the servo motor a (42) is installed on the front side of the screening box (1).

4. A grade screening device according to claim 1, characterized in that: The discharging assembly comprises a stepper motor (81) mounted on the upper surface of a fixing frame (7), the output shaft of the stepper motor (81) passes through a bearing clamped on the upper surface of the fixing frame (7) and is fixedly connected to the top end of a screw rod (82), the outer surface of the screw rod (82) is respectively threadedly connected with three threaded sleeves (83), and the left sides of the three threaded sleeves (83) are respectively hinged to the right sides of the sieve plate a (9), the sieve plate b (10) and the sieve plate c (11) through three connecting blocks (84).

5. A grade screening device according to claim 1, characterized in that: The left side of the screening box (1) is provided with three discharge ports (14), and the three discharge ports (14) correspond to the positions of the screening plate a (9), the screening plate b (10) and the screening plate c (11), respectively.

6. A grade screening device according to claim 1, characterized in that: The left side of the screening box (1) is respectively fixed with three slide rails a (15) and three slide rails b (17), and the three slide rails a (15) and three slide rails b (17) are arranged one by one, and the inner walls of the slide rails a (15) and the slide rails b (17) are slidably connected to the upper surface and the lower surface of the sealing plate (16) respectively, and the position of the sealing plate (16) corresponds to the position of the discharge port (14).

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