Rice screening device for rice processing

Abstract

The utility model belongs to the field of rice screening devices, and discloses a rice screening device for rice processing, which comprises a screening box and a screening net, the screening box is connected with a box door, the screening box is connected with a fixed round rod, the fixed round rod is slidably connected with a mounting frame, the mounting frame is provided with a mounting groove, the screening net is connected with a mounting block, and the mounting block is slidably connected with the mounting groove. The mounting block is provided with a sliding groove, the inner side of the sliding groove is slidably connected with a shifting plate, the shifting plate is connected with a reset spring, the free end of the reset spring is connected with the side wall of the sliding groove, the shifting plate is connected with a limiting rod, the limiting rod is slidably connected with the mounting block, the mounting frame is provided with a limiting hole, and the screening box is rotatably connected with a guide plate and connected with a vibration device. According to the technical scheme, the screening net can be conveniently and rapidly replaced, the practicability and applicability of the device are improved, the mounting frame, the eccentric wheel and the like are connected with the screening box, only the screening net needs to be disassembled during replacement, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of rice screening devices, in particular to a rice screening device for rice processing. Background Art

[0002] When processing rice, a screening device is required. The screening device can screen the rice for quality, filter out rice with quality problems, and leave high-quality and full rice.

[0003] For example, a Chinese utility model (publication number CN217797401U) discloses a rice screening device for rice processing, including a base, a screening box, a feed hopper, a drop port, a vertical plate, a second screening mechanism and other structures. This technical solution forms a graded screening through two screening mechanisms, and can perform multi-stage screening on rice, thereby improving the effect of rice screening and thus improving the quality of rice.

[0004] However, the above technical solution still has the following technical problems in actual use: the screening box is directly connected to the spring and the vibration motor, which makes it impossible to replace the screening net. That is, the device can only screen rice of fixed specifications, and cannot replace the screening net with filter holes of different aperture sizes according to different screening conditions. It is also not convenient to replace the damaged screening net, and its practicality and applicability are poor. Utility Model Content

[0005] The utility model aims to provide a rice screening device for rice processing to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] A rice screening device for rice processing comprises a screening box and a screening net, the screening box is connected with a box door, the screening box is connected with a fixed round rod, the fixed round rod is slidably connected with a mounting frame, the mounting frame is provided with a mounting slot, the screening net is connected with a mounting block, the mounting block is slidably connected with the mounting slot, the mounting block is provided with a sliding slot, a toggle plate is slidably connected to the inner side of the sliding slot, the toggle plate is connected with a reset spring, the free end of the reset spring is connected with a side wall of the sliding slot, the toggle plate is connected with a limiting rod, the limiting rod is slidably connected with the mounting block, the mounting frame is provided with a limiting hole, the screening box is rotatably connected with a material guide plate, the screening box is connected with a feed hopper, the screening box is provided with a first discharge port and a second discharge port, the screening box is connected with a vibration device, and the vibration device is used to improve screening efficiency.

[0008] Preferably, the vibration device includes an eccentric wheel, the screening box is rotatably connected to a rotating rod, the eccentric wheel is connected to the rotating rod, two rotating rods are provided, and the two rotating rods are commonly connected to a transmission belt assembly, the screening box is connected to a servo motor, the servo motor output shaft is connected to any of the rotating rods, the fixed round rod sleeve is provided with a vibration spring, and the two ends of the vibration spring are respectively connected to the mounting frame and the screening box.

[0009] Preferably, the guide plate is connected to a transmission rod, the transmission rod is rotatably connected to the screening box, the transmission rod is connected to a worm gear, the screening box is rotatably connected to a worm, and the worm gear is meshed with the worm gear.

[0010] Preferably, a dustproof cloth is adhered to the mounting frame, and the dustproof cloth is adhered to the toggle plate.

[0011] Compared with the prior art, this technical solution produces the following beneficial effects:

[0012] (1) The screening net of the present technical solution can be removed by detachably connecting the mounting block and the mounting frame, which is convenient for quick replacement of the screening net and improves the practicality and applicability of the device. The mounting frame and the eccentric wheel are connected to the screening box, so only the screening net needs to be disassembled and assembled during replacement, which is convenient to operate. After the screening net is replaced, the vibration device can still stably drive the screening net to vibrate, thus avoiding the situation in which the eccentric wheel directly acts on the screening net and causes rapid damage to the screening net. The disassembly and assembly can be completed by moving the toggle block without the aid of other auxiliary tools. The operation is simple and easy to use.

[0013] (2) The present technical solution is provided with a vibration device, which drives the eccentric wheel to rotate through a servo motor so that the screening net vibrates in the vertical direction, thereby improving the selection efficiency and effect; the inclination of the guide plate can be adjusted by rotating the worm, and then the material feeding speed can be adjusted to improve the screening quality; and the dustproof cloth can be posted to prevent rice from falling into the sliding trough, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of the partial cross-sectional view of the utility model;

[0015] Figure 2 A side sectional view of the mounting block provided by the utility model;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 A side sectional view of the guide plate provided by the utility model;

[0018] Figure 5 A top view of the mounting block provided by the utility model;

[0019] Figure numerals: screening box 1, fixed round rod 2, vibration spring 3, first discharge port 4, guide plate 5, feed hopper 6, screening net 7, mounting block 8, rotating rod 9, eccentric wheel 10, mounting frame 11, second discharge port 12, box door 13, servo motor 14, mounting groove 15, limit rod 16, limit hole 17, toggle plate 18, dustproof cloth 19, reset spring 20, sliding groove 21, transmission rod 22, worm wheel 23, worm 24, transmission belt assembly 25. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0021] like Figures 1 to 5 The rice screening device for rice processing shown in the figure comprises a screening box 1 and a screening net 7. The front side of the screening box 1 is connected to a box door 13. The screening box 1 is connected to a fixed round rod 2. The fixed round rod 2 is slidably connected to a mounting frame 11. The middle of the mounting frame 11 is hollowed out, and the left and right parts are connected by two round rods, so that broken rice can fall easily and the screening net 7 can contact the rear side wall of the screening box 1. The mounting frame 11 is provided with a mounting groove 15. The left and right sides of the screening net 7 are respectively connected to mounting blocks 8. The mounting block 8 is slidably connected to the mounting groove 15. The mounting block 8 is provided with a sliding groove 21. The inner side of the sliding groove 21 is slidably connected to a toggle plate 18. The toggle plate 18 is connected to the A return spring 20 is connected, and the free end of the return spring 20 is connected to the side wall of the sliding groove 21. The toggle plate 18 is connected to the limit rod 16, and the limit rod 16 is slidably connected to the mounting block 8. The mounting frame 11 is provided with a limit hole 17, and the limit hole 17 is located on the side wall of the mounting groove 15. The limit rod 16 can pass through the mounting block 8 and insert into the limit hole 17. The screening box 1 is rotatably connected to the guide plate 5, and the screening box 1 is connected to the feed hopper 6. The screening box 1 is provided with a first discharge port 4 and a second discharge port 12. The first feed port is located to cooperate with the mounting frame 11. The bottom of the screening box 1 is tilted, and the screening box 1 is connected to a vibration device, which is used to improve the screening efficiency.

[0022] The vibration device includes an eccentric wheel 10, and the screening box 1 is rotatably connected to a rotating rod 9. The eccentric wheel 10 is connected to the rotating rod 9. Two rotating rods 9 are provided, and two groups of eccentric wheels 10 are connected to one rotating rod 9. The two rotating rods 9 are respectively located on the left and right sides of the screening box 1. The two rotating rods 9 are commonly connected to a transmission belt assembly 25. The transmission belt assembly 25 includes structures such as a transmission wheel and a transmission belt. Its structure and principle are the prior art well known to practitioners in this field and will not be repeated here. The screening box 1 is connected to a servo motor 14, and the output shaft of the servo motor 14 is connected to any rotating rod 9. The fixed round rod 2 is provided with a vibration spring 3, and the two ends of the vibration spring 3 are respectively connected to the mounting frame 11 and the screening box 1.

[0023] The guide plate 5 is connected with a transmission rod 22 , which is rotatably connected with the screening box 1 , and the transmission rod 22 is connected with a worm gear 23 , which is rotatably connected with the screening box 1 , and the worm gear 24 is meshed with the worm gear 23 .

[0024] The mounting frame 11 is attached with a dustproof cloth 19 by means of Velcro, and the dustproof cloth 19 is attached to the toggle plate 18 , thereby closing the top of the sliding slot 21 .

[0025] The specific implementation process is as follows:

[0026] like Figures 1 to 3 As shown, at this time, the limit rod 16 is inserted into the limit hole 17, and under the elastic force of the reset spring 20, the limit rod 16 is relatively stably inserted into the limit hole 17. At this time, the screening net 7 is stably connected to the mounting frame 11. When the screening net 7 needs to be replaced, the box door 13 is opened to Figure 2 Take the toggle plate 18 on the left side as an example, tear off the dustproof cloth 19, push the toggle plate 18 to the right, the toggle plate 18 moves rightward to drive the limit rod 16 to move rightward, and similarly make the limit rod 16 on the right side slide out of the limit hole 17, after the limit rod 16 moves rightward to the limit hole 17, the screening net 7 can be directly taken out upward;

[0027] The servo motor 14 drives one set of rotating rods 9 to rotate, and the transmission belt assembly 25 makes the two sets of rotating rods 9 rotate simultaneously, thereby driving the eccentric wheel 10 to rotate, and the spring plate cooperates to make the mounting frame 11 and the screening net 7 vibrate in the vertical direction.

[0028] The worm 24 is turned, and the worm 24 drives the worm wheel 23 and the transmission rod 22 to rotate, thereby driving the guide plate 5 to rotate, thereby adjusting the inclination angle of the guide plate 5 and the distance between the right side of the guide plate 5 and the right inner wall of the screening box 1, thereby completing the adjustment of the material discharge speed.

[0029] When in use, rice is put into the screening box 1 from the feed hopper 6, the rice moves down along the guide plate 5 and then falls onto the screening net 7, and is screened by the screening net 7 while moving along the screening net 7, and the screening net 7 is vibrated by the servo motor 14, and the rice that meets the aperture requirement continues to move along the screening net 7 and is discharged from the first discharge port 4, and the broken rice that does not meet the screening requirement passes through the screening net 7 to the bottom of the screening box 1 and is discharged from the second discharge port 12; after using for a period of time, the box door 13 can be opened to replace the screening net 7.

[0030] The screening net 7 of the technical solution is disassembled and removed through the detachable connection between the mounting block 8 and the mounting frame 11, which is convenient for quick replacement of the screening net 7, improving the practicality and applicability of the device, and the mounting frame 11 and the eccentric wheel 10 are all connected to the screening box 1. When replacing, only the screening net 7 needs to be disassembled and assembled, which is convenient to operate and also convenient for replacing the screening net 7. The vibration device can still stably drive the screening net 7 to vibrate, avoiding the eccentric wheel 10 directly acting on the screening net 7 and causing the screening net 7 to be quickly damaged; the disassembly and assembly can be completed by moving the toggle block, without the aid of other auxiliary tools, and the operation is simple and easy to use; a vibration device is provided, and the servo motor 14 drives the eccentric wheel 10 to rotate so that the screening net 7 produces vibration in the vertical direction, thereby improving the selection efficiency and effect; the inclination of the guide plate 5 can be adjusted by rotating the worm 24, and then the material feeding speed can be adjusted to improve the screening quality, and the dustproof cloth 19 is posted to prevent rice from falling into the sliding groove 21, thereby improving the stability of the device.

[0031] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A rice screening device for rice processing, characterized in that: The invention comprises a screening box (1) and a screening net (7), wherein the screening box (1) is connected to a box door (13), the screening box (1) is connected to a fixed round rod (2), the fixed round rod (2) is slidably connected to a mounting frame (11), the mounting frame (11) is provided with a mounting groove (15), the screening net (7) is connected to a mounting block (8), the mounting block (8) is slidably connected to the mounting groove (15), the mounting block (8) is provided with a sliding groove (21), the inner side of the sliding groove (21) is slidably connected to a toggle plate (18), and the toggle plate (18) is connected to a reset spring. A spring (20) is provided, the free end of the return spring (20) is connected to the side wall of the sliding groove (21), the toggle plate (18) is connected to a limit rod (16), the limit rod (16) is slidably connected to the mounting block (8), the mounting frame (11) is provided with a limit hole (17), the screening box (1) is rotatably connected to a guide plate (5), the screening box (1) is connected to a feed hopper (6), the screening box (1) is provided with a first discharge port (4) and a second discharge port (12), the screening box (1) is connected to a vibration device, and the vibration device is used to improve the screening efficiency.

2. A rice screening device for rice processing as claimed in claim 1, characterized in that: The vibration device comprises an eccentric wheel (10), the screening box (1) is rotatably connected to a rotating rod (9), the eccentric wheel (10) is connected to the rotating rod (9), two rotating rods (9) are provided, and the two rotating rods (9) are commonly connected to a transmission belt assembly (25), the screening box (1) is connected to a servo motor (14), the output shaft of the servo motor (14) is connected to any of the rotating rods (9), and the fixed round rod (2) is sleeved with a vibration spring (3), and the two ends of the vibration spring (3) are respectively connected to a mounting frame (11) and the screening box (1).

3. A rice screening device for rice processing as claimed in claim 1, characterized in that: The guide plate (5) is connected to a transmission rod (22), the transmission rod (22) is rotatably connected to the screening box (1), the transmission rod (22) is connected to a worm gear (23), the screening box (1) is rotatably connected to a worm (24), and the worm (24) is meshed with the worm gear (23).

4. A rice screening device for rice processing as claimed in claim 1, characterized in that: The mounting frame (11) is adhered with a dustproof cloth (19), and the dustproof cloth (19) is adhered to the toggle plate (18).

Images