Rice grading and selecting device

Abstract

The utility model relates to a rice grading and selecting device which comprises a screening box and a box door, the box door is hinged to one side of the screening box, a feeding opening is fixedly formed in the upper portion of the screening box, a plurality of installation frames and screening frames are installed in the screening box, and the screening frames are installed in the installation frames respectively. A screening assembly facilitating improvement of the screening efficiency is installed on one side of the screening box and comprises a motor, a connecting disc, a connecting rod and a hinge rod, and a dismounting and mounting assembly facilitating rapid dismounting and mounting of the screening frame is installed in the mounting frame. Through the arrangement of the screening assembly, the mounting frame and the screening frame can move left and right in a reciprocating mode, the rice screening effect is improved, through the arrangement of the dismounting and mounting assembly, the screening frame can be rapidly mounted and dismounted, screening frames with different calibers can be conveniently replaced, and the problems that an existing rice grading device is low in screening efficiency and high in screening efficiency are solved. And the screening frame is difficult to replace according to different requirements.

Description

Technical Field

[0001] This utility model relates to the field of rice grading technology, and in particular to a rice grading and selection device. Background Technology

[0002] As one of the world's major food crops, rice has a very large production and consumption volume worldwide. In the rice production process, in order to improve the quality and market competitiveness of rice, it is often necessary to carry out fine grading and screening to remove impurities and improve the uniformity and grade of rice grains.

[0003] Existing rice grading equipment has low screening efficiency, making it difficult to quickly complete the grading of large quantities of rice. Furthermore, its sorting effect on rice grains of different sizes, shapes, and qualities is not ideal. In addition, due to the fixed screen aperture, it is difficult to make flexible adjustments according to different needs, which limits the adaptability of the equipment and the optimization of screening effect. Utility Model Content

[0004] In view of the technical problems in the existing technology, such as low screening efficiency, difficulty in quickly completing the grading of large quantities of rice, unsatisfactory sorting effect on rice grains of different sizes, shapes and qualities, and difficulty in flexibly adjusting according to different needs, which limits the adaptability of the equipment and the optimization of screening effect, this utility model provides a rice grading and selection device.

[0005] The technical solution adopted by this utility model is: a rice grading and selection device, including a screening box and a box door. The box door is hinged to one side of the screening box. A feed inlet is fixedly installed on the top of the screening box. Multiple mounting frames and screening frames are installed inside the screening box. The multiple screening frames are respectively installed inside the multiple mounting frames. A screening component to improve screening efficiency is installed on one side of the screening box. The screening component includes a motor, a connecting plate, a connecting rod, and a hinge rod. A disassembly and assembly component to facilitate quick assembly and disassembly of the screening frames is installed inside the mounting frames. The screening component can make the mounting frames and screening frames move back and forth left and right to improve the screening effect of rice. The disassembly and assembly component can quickly install and disassemble the screening frames, making it easy to replace screening frames of different diameters.

[0006] Furthermore, the motor is fixedly installed on one side of the screening box, and the output end of the motor is fixedly connected to the lower surface of the connecting plate. The connecting rod is fixedly installed on one side of the upper surface of the connecting plate. There are multiple hinge rods, each hinged to one side of one of the mounting frames. All the hinge rods pass through one side of the screening box and are slidably connected to the screening box. The connecting rod passes through the multiple hinge rods and is rotatably connected to the hinge rods. The motor drives the connecting plate to rotate, and the rotation of the connecting plate drives the connecting rod to make a circular motion. The connecting rod drives the hinge rod to reciprocate, thereby driving the mounting frame and the screening frame to reciprocate, improving the screening effect.

[0007] Furthermore, multiple fixing rods are fixedly installed on both sides of the inner wall of the screening box, and limit blocks are fixedly installed on both sides of the multiple mounting frames. The multiple limit blocks are slidably connected to the multiple fixing rods to ensure that the screening frame maintains a stable trajectory during movement and avoids deviation.

[0008] Furthermore, an inclined plate is fixedly installed at the bottom of the screening box, and a discharge port is fixedly installed on one side of the screening box, so that the screened rice can slide smoothly to the discharge port for easy collection.

[0009] Furthermore, the diameter of the multiple screening frames decreases sequentially from top to bottom, so that large-diameter rice is screened out first, and small-diameter rice continues to be screened downwards, thereby improving the overall screening efficiency.

[0010] Furthermore, the disassembly and assembly assembly includes mounting grooves formed on the upper surfaces of both sides of the mounting frame. Each mounting groove has a sliding groove on both sides, and a spring is fixedly installed inside the sliding groove. A snap-fit ​​block is fixedly installed at one end of each spring, and the snap-fit ​​block is slidably connected to the sliding groove. Mounting rods that mate with the mounting grooves are fixedly installed on both sides of the screening frame. Snap-fit ​​grooves that mate with the snap-fit ​​blocks are formed on both sides of the mounting rods. The design of the snap-fit ​​blocks and snap-fit ​​grooves allows for quick installation and disassembly of the screening frame, facilitating user maintenance and replacement.

[0011] Furthermore, both the upper and lower surfaces of the snap-fit ​​block are beveled, and the side closer to the slide groove is wider. The beveled design makes it easier for the snap-fit ​​block to enter the snap-fit ​​groove, making it convenient for users to install the screening frame.

[0012] Furthermore, a viewing window is provided on the front of the box door, allowing users to observe the screening process in real time and promptly detect and handle any abnormalities.

[0013] The beneficial effects of this utility model are:

[0014] This invention, through the setting of the screening component, allows the mounting frame and the screening frame to move back and forth left and right, improving the screening effect of rice. It solves the problems of low main screening efficiency of existing rice grading equipment, difficulty in quickly completing the grading of large quantities of rice, and unsatisfactory sorting effect for rice grains of different sizes, shapes and qualities.

[0015] Secondly, this invention, through the design of detachable components, allows for quick installation and disassembly of the screening frame, facilitating the replacement of screening frames with different diameters. This solves the problem that existing devices are difficult to adjust flexibly according to different needs, limiting the adaptability of the equipment and the optimization of screening effects. Attached Figure Description

[0016] Figure 1This is an overall drawing of the present invention;

[0017] Figure 2 This is an internal view of the screening box of this utility model;

[0018] Figure 3 This is a front sectional perspective view of the screening box of this utility model;

[0019] Figure 4 This is an exploded view of the mounting frame and screening frame of this utility model.

[0020] The following are marked in the diagram: 1. Screening box; 2. Box door; 3. Feed inlet; 4. Mounting frame; 5. Screening frame; 6. Screening assembly; 601. Motor; 602. Connecting plate; 603. Connecting rod; 604. Hinge rod; 605. Fixing rod; 606. Limiting block; 607. Inclined plate; 608. Discharge port; 7. Disassembly assembly; 701. Mounting groove; 702. Slide groove; 703. Spring; 704. Snap-fit ​​block; 705. Mounting rod; 706. Snap-fit ​​groove; 8. Viewing window. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0024] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a rice grading and selection device.

[0025] The specific technical solution includes a screening box 1 and a door 2. The door 2 is hinged to one side of the screening box 1. A feed inlet 3 is fixedly installed on the top of the screening box 1. Multiple mounting frames 4 and screening frames 5 are installed inside the screening box 1. The multiple screening frames 5 are installed inside the multiple mounting frames 4 respectively. A screening component 6 is installed on one side of the screening box 1 to improve screening efficiency. The screening component 6 includes a motor 601, a connecting plate 602, a connecting rod 603, and a hinge rod 604. A disassembly and assembly component 7 is installed inside the mounting frame 4 to facilitate quick disassembly and assembly of the screening frame 5. The screening component 6 can make the mounting frame 4 and the screening frame 5 move back and forth left and right to improve the screening effect of rice. The disassembly and assembly component 7 can quickly install and disassemble the screening frame 5, making it easy to replace screening frames 5 with different diameters.

[0026] Reference Figures 1 to 3 As shown, motor 601 is fixedly installed on one side of screening box 1. The output end of motor 601 is fixedly connected to the lower surface of connecting plate 602. Connecting rod 603 is fixedly installed on one side of the upper surface of connecting plate 602. There are multiple hinge rods 604, which are respectively hinged to one side of multiple mounting frames 4. Multiple hinge rods 604 pass through one side of screening box 1 and are slidably connected to screening box 1. Connecting rod 603 passes through multiple hinge rods 604 and is rotatably connected to hinge rods 604. Multiple fixing rods 605 are fixedly installed on both sides of the inner wall of screening box 1. Limiting blocks 606 are fixedly installed on both sides of multiple mounting frames 4. Multiple limiting blocks 606 are respectively connected to multiple fixing rods. A sliding connection is made at 605. An inclined plate 607 is fixedly installed at the bottom of the screening box 1, and a discharge port 608 is fixedly installed on one side of the screening box 1. The diameters of the multiple screening frames 5 decrease sequentially from top to bottom. The motor 601 starts and drives the connecting plate 602 to rotate. The rotation of the connecting plate 602 drives the connecting rod 603 to make a circular motion. Because the connecting rod 603 is rotatably connected to multiple hinge rods 604, and the hinge rods 604 are hinged to the mounting frame 4, and the mounting frame 4 is limited by the setting of the limit block 606 and the fixing rod 605, the connecting rod 603 drives the hinge rods 604 to reciprocate, thereby driving the mounting frame 4 and the screening frame 5 to reciprocate, improving the screening effect.

[0027] Reference Figure 1 and Figure 4As shown, the assembly / disassembly component 7 includes mounting grooves 701 on the upper surfaces of both sides of the mounting frame 4. Slide grooves 702 are provided on both sides of the mounting grooves 701. A spring 703 is fixedly installed inside the slide groove 702. A snap-fit ​​block 704 is fixedly installed at one end of the spring 703. The snap-fit ​​block 704 is slidably connected to the slide groove 702. Mounting rods 705 that fit into the mounting grooves 701 are fixedly installed on both sides of the screening frame 5. Snap-fit ​​grooves 706 that fit into the snap-fit ​​blocks 704 are provided on both sides of the mounting rods 705. The upper and lower surfaces of the snap-fit ​​blocks 704 are beveled, and the side closer to the slide groove 702 is wider. A viewing window 8 is provided on the front of the door 2. The mounting rods 705 of the screening frame 5 are aligned with the mounting grooves 701, and pressure is applied to cause the mounting rods 705 to enter the mounting grooves 701. At this point, the inclined surface of the locking block 704 will contact the mounting rod 705. Due to the action of the inclined surface, the locking block 704 will be pressed into the sliding groove 702, and the spring 703 will be compressed. When the mounting rod 705 is fully inserted into the mounting groove 701, the locking block 704 will pop out under the elastic force of the spring 703 and lock into the locking groove 706 on the mounting rod 705, thereby fixing the screening frame 5.

[0028] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0029] In use, the rice to be screened is poured into the screening box 1 through the feed inlet 3. After entering the screening box 1, the rice will first fall onto the top screening frame 5. The motor 601 starts and drives the connecting plate 602 to rotate. The rotation of the connecting plate 602 drives the connecting rod 603 to make a circular motion. The connecting rod 603 drives the hinge rod 604 to reciprocate, which in turn drives the mounting frame 4 and the screening frame 5 to reciprocate to screen the rice. The rice at the bottom is discharged from the discharge port 608 through the inclined plate 607. After screening is completed, the box door 2 is opened, and the screening frame 5 is lifted from top to bottom to make the locking block 704 disengage from the locking groove 706. The screening frame 5 can then be removed from the mounting groove 701. The unscreened rice in the frame is collected. Finally, the mounting rod 705 of the screening frame 5 is aligned with the mounting groove 701, and pressure is applied to make the mounting rod 705 enter the mounting groove 701. At this point, the inclined surface of the locking block 704 will contact the mounting rod 705. Due to the action of the inclined surface, the locking block 704 will be pressed into the sliding groove 702, and the spring 703 will be compressed. When the mounting rod 705 is fully inserted into the mounting groove 701, the locking block 704 will pop out under the elastic force of the spring 703 and lock into the locking groove 706 on the mounting rod 705, thus fixing the screening frame 5.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A rice grading and selection device, characterized in that, The screen includes a screening box (1) and a door (2). The door (2) is hinged to one side of the screening box (1). A feed inlet (3) is fixedly installed on the top of the screening box (1). Multiple mounting frames (4) and screening frames (5) are installed inside the screening box (1). The multiple screening frames (5) are respectively installed inside the multiple mounting frames (4). A screening component (6) is installed on one side of the screening box (1) to facilitate improved screening efficiency. The screening component (6) includes a motor (601), a connecting plate (602), a connecting rod (603), and a hinge rod (604). A disassembly and assembly component (7) is installed inside the mounting frame (4) to facilitate quick disassembly and assembly of the screening frame (5).

2. The rice grading and selection device according to claim 1, characterized in that, The motor (601) is fixedly installed on one side of the screening box (1). The output end of the motor (601) is fixedly connected to the lower surface of the connecting plate (602). The connecting rod (603) is fixedly installed on one side of the upper surface of the connecting plate (602). There are multiple hinge rods (604), which are respectively hinged to one side of multiple mounting frames (4). The multiple hinge rods (604) all pass through one side of the screening box (1) and are slidably connected to the screening box (1). The connecting rod (603) passes through multiple hinge rods (604) and is rotatably connected to the hinge rods (604).

3. The rice grading and selection device according to claim 1, characterized in that, Multiple fixing rods (605) are fixedly installed on both sides of the inner wall of the screening box (1), and multiple mounting frames (4) are fixedly installed on both sides with limiting blocks (606). The multiple limiting blocks (606) are slidably connected to the multiple fixing rods (605).

4. The rice grading and selection device according to claim 1, characterized in that, An inclined plate (607) is fixedly installed at the bottom of the screening box (1), and a discharge port (608) is fixedly installed on one side of the screening box (1).

5. The rice grading and selection device according to claim 1, characterized in that, The diameter of the multiple screening frames (5) decreases sequentially from top to bottom.

6. The rice grading and selection device according to claim 1, characterized in that, The assembly / disassembly component (7) includes mounting grooves (701) formed on the upper surfaces of both sides of the mounting frame (4). Each side of the mounting groove (701) has a sliding groove (702). A spring (703) is fixedly installed inside the sliding groove (702). A snap-fit ​​block (704) is fixedly installed at one end of the spring (703). The snap-fit ​​block (704) is slidably connected to the sliding groove (702). Each side of the screening frame (5) has a mounting rod (705) that matches the mounting groove (701). Each side of the mounting rod (705) has a snap-fit ​​groove (706) that matches the snap-fit ​​block (704).

7. The rice grading and selection device according to claim 6, characterized in that, The upper and lower surfaces of the snap-fit ​​block (704) are both inclined, and the side closer to the slide groove (702) is wider.

8. The rice grading and selection device according to claim 1, characterized in that, The front of the box door (2) is provided with a viewing window (8).

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