A rice screening machine with replaceable screen

Abstract

The utility model discloses a rice screening machine convenient to replace screen, including screening box, screening box is opened with the mounting groove, the screen plate is slidably connected in the mounting groove, the one side of screening box is fixedly connected with the support block, the support block top surface fixed mounting cylinder, cylinder piston rod output end fixedly connected with the one end of connecting rod, the other end of connecting rod fixedly connected with fixed block. The utility model discloses through the setting mounting groove, support block, cylinder, connecting rod, fixed block, spacing locating block, limit slot, connecting block, spacing sliding slot, take and put spacing mouth etc.

Description

Technical Field

[0001] This utility model relates to the field of rice screening technology, specifically a rice screening machine that facilitates screen replacement. Background Technology

[0002] The grain produced by rice is paddy. After removing the husk, paddy is called brown rice. Milling away the bran layer from brown rice yields white rice. Nearly half the world's population relies on rice as a staple food. Besides being edible, rice can also be used for brewing, sugar production, and as an industrial raw material. Rice husks and straw can be used as livestock feed. However, with increasing public concern about food safety, particularly regarding excessive levels of metals in rice, content testing is now required before rice is sold on the market. Before rice testing, screening equipment is often used to remove impurities such as stones.

[0003] For example, Chinese utility model patent CN219051993U discloses a raw material screening device for rice storage, including a box body. Two self-locking universal wheels are fixed to the bottom of the front and rear side plates of the box body, respectively. A feed inlet is opened on the top plate of the box body, and a sliding groove is opened on the left side plate of the box body. A screen is slidably installed on the sliding groove. Limiting grooves are opened on the front and rear inner walls of the sliding groove, and limiting blocks corresponding to the limiting grooves are fixed to the screen. A moving mechanism is provided on the box body. When screening is required, the rice feed inlet is placed into the box body, and then the rice enters the screen. At the same time, the rice is agitated by the stirring mechanism, thereby further improving the dehumidification efficiency. After drying, the fixing bolt is rotated, and the sealing plate is pulled out through the mounting plate, so that the rice enters the conveyor plate under the action of gravity. The workers can collect it at the left end of the conveyor plate, which also improves the feeding speed and work efficiency.

[0004] However, existing rice screening devices isolate larger impurities in rice by screening with screens. After long-term use, the screens are prone to wear or impurities may get stuck in the mesh, making it inconvenient to disassemble and replace the screens.

[0005] Therefore, we propose a rice screening machine with easily replaceable screens to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a rice screening machine that facilitates screen replacement, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rice screening machine that facilitates screen replacement, comprising a screening box, wherein the screening box has an installation groove, a screen plate is slidably connected in the installation groove, a support block is fixedly connected to one side of the screening box, a cylinder is fixedly installed on the top surface of the support block, one end of a connecting rod is fixedly connected to the output end of the piston rod of the cylinder, a fixing block is fixedly connected to the other end of the connecting rod, a limiting positioning block is fixedly connected to one side of the fixing block, the screen plate is slidably connected to the top surface of the support block, a limiting slot is opened on the top surface of the screen plate, the limiting slot engages with the limiting positioning block, a handle is fixedly connected to one end of the top surface of the screen plate, two connecting blocks are fixedly connected to both ends of the top surface of the support block, a limiting sliding groove is opened on the side of the two connecting blocks that are close to each other, a limiting slider is fixedly connected to both sides of the screen plate, the limiting slider is slidably connected to the limiting sliding groove, and a pick-up and put-out limiting port is opened at one end of the top surface of the limiting sliding groove.

[0008] Preferably, one side of the screen plate contacts the fixing block, and the screen plate, fixing block, and limiting positioning block are slidably connected to the top surface of the support block.

[0009] Preferably, the screen plate is slidably connected to the connecting block, and the top surface of the support block has an opening.

[0010] Preferably, the bottom surface of the screening box is fixedly connected to multiple support columns, the top surface of the screening box is fixedly connected to a feed inlet, and a discharge outlet is opened at the top of the screening box. The feed inlet and the discharge outlet are internally connected.

[0011] Preferably, a guide block is fixedly connected to the bottom of the screening box, a discharge port is opened at the bottom of the screening box, a discharge pipe is fixedly connected to the bottom surface of the screening box, and a valve is provided on the discharge pipe.

[0012] Preferably, the fixed block is slidably connected to the top surface of the support block.

[0013] Preferably, a discharge port is provided on one side of the screening box, a support frame is fixedly connected to one side of the screening box, a collection frame is placed on the support frame, an inclined groove is provided on the collection frame, and handles are fixedly connected to both sides of the collection frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, by setting up an installation groove, support block, cylinder, connecting rod, fixing block, limiting positioning block, limiting slot, connecting block, limiting slide groove, and pick-and-place limiting port, allows the screen plate to be moved out by moving the fixing block and limiting positioning block when the screen plate needs to be replaced. The limiting slider slides in the limiting slide groove and moves to the designated position. When the screen plate is moved to the designated position, the limiting slider can be placed in the pick-and-place limiting port. The screen plate can be disassembled by holding the handle and the other end of the screen plate, which allows the limiting slider to slide out from the pick-and-place limiting port. This facilitates the disassembly and replacement of the screen plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a frontal cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the top cross-sectional structure of a portion of the present invention;

[0019] Figure 4 This is a partial structural diagram of the present invention after the screen is removed;

[0020] Figure 5 This is a frontal cross-sectional view of a portion of the structure of the screen after it has been removed.

[0021] Figure 6 This is a schematic diagram of the structure of the screen after disassembly.

[0022] Figure 7 This is a schematic diagram of a partial cross-sectional structure of the present invention.

[0023] In the diagram: 1. Screening box; 2. Support column; 3. Discharge port; 4. Feed inlet; 5. Guide block; 6. Discharge port; 7. Discharge pipe; 8. Valve; 9. Mounting groove; 10. Screen plate; 101. Limiting slot; 102. Limiting slider; 11. Handle; 12. Support block; 121. Through port; 13. Cylinder; 14. Connecting rod; 15. Fixing block; 16. Limiting positioning block; 17. Connecting block; 171. Limiting slide groove; 172. Pick-up and put-out limiting port; 18. Discharge port; 19. Support frame; 20. Collection frame; 201. Inclined groove; 21. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figure 1-7This is the first embodiment of the present invention, which provides a technical solution: a rice screening machine that facilitates screen replacement, including a screening box 1, a mounting groove 9, a screen plate 10 slidably connected in the mounting groove 9, a support block 12 fixedly connected to one side of the screening box 1, a cylinder 13 fixedly mounted on the top surface of the support block 12, a connecting rod 14 fixedly connected to the output end of the piston rod of the cylinder 13, a fixing block 15 fixedly connected to the other end of the connecting rod 14, a limiting positioning block 16 fixedly connected to one side of the fixing block 15, the limiting positioning block 16 having a T-shaped cross-section, which can limit the placement of the screen plate 10, and the screen plate 10 can be moved by moving the limiting positioning block 16, the screen plate 10 slidably connected to the top surface of the support block 12, the screen plate 1... A limiting slot 101 is provided on the top surface of the screen plate 10, which engages with a limiting positioning block 16 to limit the screen plate 10. A handle 11 is fixed to one end of the top surface of the screen plate 10 for easy handling. Two connecting blocks 17 are fixed to both ends of the top surface of the support block 12. Limiting grooves 171 are provided on the side of the two connecting blocks 17 that are close to each other. Limiting sliders 102 are fixed to both sides of the screen plate 10. The limiting sliders 102 slide in the limiting grooves 171. A pick-up and put-out limiting port 172 is provided on one end of the top surface of the limiting grooves 171. When the screen plate 10 moves, the limiting sliders 102 can slide in the limiting grooves 171 to limit the screen plate 10, thereby improving the stability of the screen plate 10. When installing the screen plate 10, hold the handle 11 and one end of the screen plate 10, and slide the limiting sliders 102 on both sides of the screen plate 10 into the corresponding limiting ports 172. The limiting slots 101 on the screen plate 10 can then be engaged with the limiting positioning blocks 16, and the limiting sliders 102 can fall into the limiting grooves 171. The screen plate 10 contacts the top surface of the support block 12. By starting the cylinder 13, the fixing block 15 and the limiting positioning blocks 16 can be moved. The limiting positioning blocks 16 limit the screen plate 10, and at the same time, the screen plate 10 can be moved. The limiting sliders 102 on both sides of the screen plate 10 slide in the limiting grooves 171, so that the screen plate 10 can be moved into the installation slot 9 and moved to the designated position.

[0027] Example 2:

[0028] Please see Figure 1-7 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. One side of the screen plate 10 contacts the fixing block 15, and the screen plate 10, the fixing block 15, and the limiting positioning block 16 are slidably connected to the top surface of the support block 12.

[0029] The screen plate 10 is slidably connected to the connecting block 17, and the top surface of the support block 12 has an opening 121. The opening 121 facilitates gripping the end of the screen plate 10 and picking up and putting down the screen plate 10.

[0030] Multiple support columns 2 are fixed to the bottom surface of the screening box 1, the feed inlet 4 is fixed to the top surface of the screening box 1, and the discharge port 3 is opened on the top of the screening box 1. The feed inlet 4 and the discharge port 3 are internally connected.

[0031] A guide block 5 is fixedly connected to the bottom of the screening box 1 to facilitate guiding the screened rice material to the discharge port 6. The discharge port 6 is opened at the bottom of the screening box 1, and a discharge pipe 7 is fixedly connected to the bottom surface of the screening box 1. A valve 8 is provided on the discharge pipe 7. The screened rice material can be discharged through the discharge pipe 7 by opening the valve 8 on the discharge pipe 7.

[0032] The fixed block 15 is slidably connected to the top surface of the support block 12.

[0033] A discharge port 18 is provided on one side of the screening box 1, and a support frame 19 is fixedly connected to one side of the screening box 1 to limit the position of the collection frame 20. One side of the collection frame 20 contacts one side of the screening box 1. The collection frame 20 is placed on the support frame 19, and an inclined groove 201 is provided on the collection frame 20 to facilitate the falling of large impurities from the screening into the collection frame 20. Handles 21 are fixed to both sides of the collection frame 20 for easy handling. During the screening process, the rice material to be screened can be poured in through the feed port 4. The rice material can be screened through the inclined screen plate 10. The screened rice material can fall into the bottom of the screening box 1 through the screen mesh. Larger impurities in the screened rice can be collected in the collection frame 20 through the discharge port 18 by the inclined setting of the screen plate 10.

[0034] Please see Figure 1-7 When using this utility model, if it is necessary to disassemble the screen plate 10, the cylinder 13 is connected to an external power source. By starting the cylinder 13, the fixed block 15 and the limiting positioning block 16 can be moved. The limiting positioning block 16 limits the screen plate 10 and simultaneously moves the screen plate 10. The limiting slider 102 slides in the limiting groove 171, and the screen plate 10 can be moved out of the mounting groove 9 and moved to the designated position. The limiting slider 102 moves to the position of the corresponding pick-up and put-down limiting port 172. By holding the handle 11 with one hand and the end of the screen plate 10 near the opening 121 with the other hand, the screen plate 10 can be moved upward so that the limiting slider 102 moves out of the pick-up and put-down limiting port 172, and the screen plate 10 can be disassembled, which is convenient for the disassembly and replacement of the screen plate 10.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice screening machine with easily replaceable screens, comprising a screening box (1), characterized in that: The screening box (1) has an installation groove (9), in which a screen plate (10) is slidably connected. A support block (12) is fixedly connected to one side of the screening box (1), and a cylinder (13) is fixedly installed on the top surface of the support block (12). One end of a connecting rod (14) is fixedly connected to the output end of the piston rod of the cylinder (13), and a fixing block (15) is fixedly connected to the other end of the connecting rod (14). A limiting positioning block (16) is fixedly connected to one side of the fixing block (15). The screen plate (10) is slidably connected to the top surface of the support block (12), and a limiting slot (101) is opened on the top surface of the screen plate (10). The limiting slot (101) engages with the limiting positioning block (16), the top surface of the screen plate (10) is fixedly connected to one end of the handle (11), the top surfaces of the support block (12) are respectively fixedly connected to the connecting blocks (17), the number of the connecting blocks (17) is two, the two connecting blocks (17) are respectively opened with limiting slide grooves (171) on the side of the two connecting blocks (17) that are close to each other, the screen plate (10) is respectively fixedly connected to the limiting sliders (102), the limiting sliders (102) are slidably connected to the limiting slide grooves (171), and the top surface of the limiting slide groove (171) is opened with a pick-up and put-out limiting port (172).

2. The rice screening machine with easily replaceable screens according to claim 1, characterized in that: The screen plate (10) contacts the fixing block (15) on one side, and the screen plate (10), the fixing block (15), and the limiting positioning block (16) are slidably connected to the top surface of the support block (12).

3. The rice screening machine with easily replaceable screens according to claim 1, characterized in that: The screen plate (10) is slidably connected to the connecting block (17), and the top surface of the support block (12) has an opening (121).

4. A rice screening machine with easily replaceable screens according to claim 1, characterized in that: The bottom surface of the screening box (1) is fixed with multiple support columns (2), the top surface of the screening box (1) is fixed with a feed inlet (4), and the top of the screening box (1) has a discharge port (3). The feed inlet (4) and the discharge port (3) are internally connected.

5. A rice screening machine with easily replaceable screens according to claim 1, characterized in that: The bottom of the screening box (1) is fixed with a guide block (5), the bottom of the screening box (1) is opened with a discharge port (6), the bottom surface of the screening box (1) is fixed with a discharge pipe (7), and a valve (8) is provided on the discharge pipe (7).

6. A rice screening machine with easily replaceable screens according to claim 1, characterized in that: The fixed block (15) is slidably connected to the top surface of the support block (12).

7. A rice screening machine with easily replaceable screens according to claim 1, characterized in that: The screening box (1) has a discharge port (18) on one side and a support frame (19) fixed to one side. A collection frame (20) is placed on the support frame (19). An inclined groove (201) is provided on the collection frame (20). Handles (21) are fixed to both sides of the collection frame (20).

Images