A batch-charge rice polisher feed hopper

Abstract

This utility model discloses a feeding hopper for a rice polishing machine capable of batch feeding, specifically relating to the technical field of rice polishing machines. It includes a feeding hopper body, a feeding pipe fixed to the bottom of the hopper body, a support frame movably mounted on the top of the hopper body, a servo motor fixed to one side of the middle of the support frame, a transmission rod fixed to the power output end of the servo motor, a toggle block fixed to the top of one end of the transmission rod, and a filter screen movably mounted on the top of the support frame. This device uses the servo motor to drive the transmission rod to rotate, which in turn drives the toggle block to slide inside the guide rail, causing the filter screen to move laterally back and forth. Springs on both sides are correspondingly compressed and stretched, causing the rice inside the filter screen to shake and move downwards, discharging impurities and broken rice from below the filter screen. The filtered rice enters the feeding hopper body from the bottom of the filter screen, thus achieving the effect of pre-screening the rice and removing some impurities and small broken rice particles.

Description

Technical Field

[0001] This utility model relates to the technical field of rice polishing machines, specifically to a rice polishing machine feed hopper capable of batch feeding. Background Technology

[0002] After brown rice has undergone multiple milling processes to remove broken rice and bran flakes, it is then sprayed with water to moisten it before entering the polishing chamber. Under specific pressure and temperature, friction polishes the surface of the rice grains. This polishing process not only removes surface bran but also pregelatinizes and gelatinizes the starch on the rice grain surface. Starch gelatinization fills in cracks, resulting in a bright, glossy appearance and improved storage and edible quality. Therefore, rice polishing is essential.

[0003] The rice polishing machine is a key piece of equipment in the rice processing stage, and its structural design directly affects the polishing effect and product quality. It mainly consists of four core systems, one of which is the feeding system. As the starting point of processing, the feeding system transports the cleaned rice into the main unit via a lift or screw conveyor.

[0004] Existing feed hoppers typically only have a simple feeding function, while rice polishing machines use intermittent rotation to contact and rub the rice, removing surface impurities and wax. At the same time, the multi-roller design improves the uniformity of polishing. The size of the rice needs to be relatively uniform. Broken rice and small particles are difficult to polish effectively and will occupy the working chamber volume. After subsequent polishing, they will also separate from the rice along with the impurities generated during polishing. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a rice polishing machine feed hopper that can feed in batches, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a feeding hopper for a rice polishing machine that can feed in batches, including a feeding hopper body, a feeding pipe fixed at the bottom of the feeding hopper body, a support frame movably installed at the top of the feeding hopper body, a servo motor fixed on one side of the middle of the support frame, a transmission rod fixed at the power output end of the servo motor, a toggle block fixed at the top of one end of the transmission rod, a filter screen movably installed at the top of the support frame, a connecting rod fixed at the middle of the side of the filter screen near the servo motor, a guide rail fixed at one end of the connecting rod, and the guide rail and the toggle block being slidably connected.

[0008] Furthermore, the support frame has sliding grooves at both ends of the top, and the filter screen has sliding rods fixed at both ends of the bottom. The two sliding rods are slidably connected to the two sliding grooves respectively.

[0009] Furthermore, connecting blocks are fixed on both sides of the bottom of the filter screen, and springs are fixed on the side of each of the four connecting blocks near the inner wall of the support frame. All four springs are fixed to the inner wall of the support frame, and a second baffle is fixed at the bottom of the support frame.

[0010] Furthermore, a second support rod is fixed in the middle of the side of the feed hopper near the support frame. A slider is movably sleeved on the outer wall of the second support rod. A limit bolt is threaded through one side of the slider, and the limit bolt is in contact with the second support rod.

[0011] Furthermore, a third support rod is hinged to the top of the slider, the top of the third support rod is hinged to the middle of the bottom of the support frame, and the bottom of the support frame is hinged to the top of one side of the feed hopper.

[0012] Furthermore, a placement slot is provided through one side of the feeding pipe, and an electric telescopic rod is fixed to the side of the feeding hopper near the placement slot via a first support rod. A first baffle is fixed to the power output end of the electric telescopic rod, and the first baffle is used in conjunction with the placement slot.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] 1. This application uses a servo motor to drive the transmission rod to rotate, which in turn drives the actuating block to slide inside the guide rail, causing the filter screen to move laterally back and forth. The springs on both sides will compress and stretch accordingly. The rice inside the filter screen moves downward while shaking, discharging impurities and broken rice from below the filter screen. The filtered rice enters the feed hopper from the bottom of the filter screen, thereby achieving the effect of pre-screening the rice and removing some impurities and small broken rice particles.

[0015] 2. This application adjusts the tilt angle between the filter screen and the feed hopper according to the rice entering the hopper. By adjusting the position of the slider on the second support rod, the angle between the third support rod and the second support rod changes, and the horizontal height of the top of the third support rod changes. Tightening the limiting bolt to contact the second support rod fixes the slider. The larger the tilt angle between the filter screen and the feed hopper, the slower the feeding speed, thus achieving the effect of adjusting according to the feeding rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the filter screen structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the servo motor structure of this utility model.

[0021] The labels in the diagram represent:

[0022] 1. Feed hopper body; 2. Discharge pipe; 3. First support rod; 4. Electric telescopic rod; 5. First baffle; 6. Second support rod; 7. Slider; 8. Limit bolt; 9. Third support rod; 10. Support frame; 11. Placement slot; 12. Filter screen; 13. Slide groove; 14. Slide rod; 15. Servo motor; 16. Transmission rod; 17. Actuating block; 18. Connecting rod; 19. Guide rail; 20. Connecting block; 21. Spring; 22. Second baffle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0025] This application discloses a rice polishing machine feed hopper capable of batch feeding, including a feed hopper body 1, a feed pipe 2 fixed at the bottom of the feed hopper body 1, a support frame 10 movably mounted on the top of the feed hopper body 1, a servo motor 15 fixed on one side of the middle of the support frame 10, a transmission rod 16 fixed at the power output end of the servo motor 15, a toggle block 17 fixed at the top of one end of the transmission rod 16, a filter screen 12 movably mounted on the top of the support frame 10, a connecting rod 18 fixed at the middle of the side of the filter screen 12 near the servo motor 15, a guide rail 19 fixed at one end of the connecting rod 18, and the guide rail 19 and the toggle block 17 slidably connected.

[0026] Reference Appendix Figure 3The support frame 10 has grooves 13 at both ends of the top, and the filter screen 12 has slide rods 14 at both ends of the bottom. The two slide rods 14 are slidably connected to the two grooves 13 respectively. The servo motor 15 drives the transmission rod 16 to rotate, which in turn drives the actuating block 17 to slide inside the guide rail 19. The actuating block 17 and the guide rail 19 cooperate to convert the circular motion of the transmission rod 16 into the lateral reciprocating movement of the connecting rod 18 and the filter screen 12.

[0027] Reference Appendix Figure 4 The filter screen 12 has connecting blocks 20 fixed on both sides of the bottom center. Each of the four connecting blocks 20 has a spring 21 fixed on the side of the support frame 10 near the inner wall. The four springs 21 are fixed to the inner wall of the support frame 10. The support frame 10 has a second baffle 22 fixed at the bottom. The two sides of the filter screen 12 are connected to the support frame 10 by the springs 21. When the filter screen 12 moves back and forth, the springs 21 on both sides will be compressed and stretched accordingly.

[0028] Reference Appendix Figure 1 The feed hopper 1 has a second support rod 6 fixed in the middle of the side near the support frame 10. A slider 7 is movably sleeved on the outer wall of the second support rod 6. A limit bolt 8 is threaded through one side of the slider 7. The limit bolt 8 is in contact with the second support rod 6. The slider 7 can be fixed by adjusting the position of the slider 7 on the second support rod 6 and tightening the limit bolt 8 to make it contact with the second support rod 6.

[0029] Reference Appendix Figure 1 The top of the slider 7 is hinged to a third support rod 9. The top of the third support rod 9 is hinged to the middle of the bottom of the support frame 10. The bottom of the support frame 10 is hinged to the top of one side of the feed hopper 1. When the position of the slider 7 changes, the angle between the third support rod 9 and the second support rod 6 changes, and the horizontal height of the top of the third support rod 9 changes, thereby changing the tilt angle between the support frame 10 and the filter screen 12 and the feed hopper 1.

[0030] Reference Appendix Figure 2 The feeding pipe 2 has a placement groove 11 through one side. The feeding hopper 1 is fixed with an electric telescopic rod 4 by a first support rod 3 on the side near the placement groove 11. The power output end of the electric telescopic rod 4 is fixed with a first baffle 5. The first baffle 5 is used in conjunction with the placement groove 11. The position of the first baffle 5 is adjusted by extending and shortening the electric telescopic rod 4 to control whether the feeding pipe 2 is feeding in batches.

[0031] The workflow of this utility model is as follows:

[0032] First, the rice to be polished is poured directly onto the top of the filter screen 12. The servo motor 15 is then activated, driving the transmission rod 16 to rotate. This, in turn, causes the actuating block 17 to slide inside the guide rail 19. Through the cooperation of the actuating block 17 and the guide rail 19, the circular motion of the transmission rod 16 is converted into the lateral reciprocating movement of the connecting rod 18 and the filter screen 12. Springs 21 connect both sides of the filter screen 12 to the support frame 10. As the filter screen 12 reciprocates, the springs 21 on both sides are compressed and stretched accordingly. The rice inside the filter screen 12 moves downwards while swaying, removing impurities. Impurities and broken rice are discharged from below the filter screen 12. The second baffle 22 blocks the bottom groove 13 to prevent impurities and broken rice from entering and affecting subsequent movement. The filtered rice enters the feed hopper 1 from the bottom of the filter screen 12. The position of the first baffle 5 is adjusted by extending and shortening the electric telescopic rod 4 to control whether the feed pipe 2 is feeding in batches. During feeding, the tilt angle between the filter screen 12 and the feed hopper 1 is adjusted according to the rice entering the feed hopper 1. The position of the slider 7 is adjusted on the second support rod 6. The angle between the third support rod 9 and the second support rod 6 changes, and the horizontal height of the top of the third support rod 9 changes. Tightening the limiting bolt 8 to contact the second support rod 6 will fix the slider 7. The larger the tilt angle between the filter screen 12 and the feed hopper 1, the slower the feeding speed.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A batch-chargeable rice polisher feeding hopper, characterized by: The device includes a feeding hopper, a discharge pipe fixed to the bottom of the feeding hopper, a support frame movably mounted on the top of the feeding hopper, a servo motor fixed to one side of the middle of the support frame, a transmission rod fixed to the power output end of the servo motor, a toggle block fixed to the top of one end of the transmission rod, a filter screen movably mounted on the top of the support frame, a connecting rod fixed to the middle of the filter screen near the servo motor, a guide rail fixed to one end of the connecting rod, and the guide rail and the toggle block slidably connected.

2. The batch-chargeable rice polisher feed hopper according to claim 1, characterized by: The support frame has sliding grooves at both ends of the top, and the filter screen has sliding rods fixed at both ends of the bottom. The two sliding rods are slidably connected to the two sliding grooves respectively.

3. The batch-able rice polisher feed hopper of claim 1, wherein: Connecting blocks are fixed to the middle of both sides of the bottom of the filter screen. Springs are fixed to the four connecting blocks near the inner wall of the support frame. The four springs are fixed to the inner wall of the support frame. A second baffle is fixed to the bottom of the support frame.

4. The batch-able rice polisher feed hopper of claim 1, wherein: A second support rod is fixed in the middle of the side of the feed hopper near the support frame. A slider is movably sleeved on the outer wall of the second support rod. A limit bolt is threaded through one side of the slider and abuts against the second support rod.

5. The batch-able rice polisher feed hopper of claim 4, wherein: The top of the slider is hinged to a third support rod, the top of the third support rod is hinged to the middle of the bottom of the support frame, and the bottom of the support frame is hinged to the top of one side of the feed hopper.

6. The batch-able rice polisher feed hopper of claim 1, wherein: A placement slot is provided through one side of the feeding pipe. An electric telescopic rod is fixed to the side of the feeding hopper near the placement slot by a first support rod. A first baffle is fixed to the power output end of the electric telescopic rod. The first baffle is used in conjunction with the placement slot.

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