Environment-friendly impurity removal device for rice processing

Abstract

The invention relates to the technical field of environment-friendly rice processing and impurity removal, and discloses an environment-friendly rice processing impurity removal device which comprises a processing box and further comprises a discharging hopper fixedly connected to the top of the processing box and used for storing rice to be processed; the treatment box is mounted on the front surface of the processing box and is used for treating the milled rice; the fixing frame is fixedly connected to the bottom of the processing box; the support frame is connected between the bottom of the treatment box and the fixed frame; the grinding mechanism is arranged in the processing box and used for grinding the rice hulls; and the grinding mechanism is arranged in the treatment box. According to the rice processing device, through the arranged grinding mechanism, the distance between two rubber barrels is changed through adjustable movable rubber strips, so that rice of different sizes can be processed, the processing effect is improved, meanwhile, through the multiple grinding strips and the movable rubber strips, the friction force during grinding is improved, and then the shelling effect during grinding is improved.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly rice processing and impurity removal, in particular to an environmentally friendly rice processing and impurity removal device. Background Art

[0002] With the growth of global population and the rise of food demand, rice, as one of the staple foods, has received increasing attention for its processing efficiency and quality. In the rice processing process, impurity removal is a key step that directly affects the quality and safety of the final product. Traditional impurity removal devices often use screens with fixed apertures or single impurity removal technology. These devices have limitations when processing rice of different sizes and types and cannot flexibly adapt to diverse processing needs.

[0003] As disclosed in publication number CN 110586272 A, a rice processing device comprises a floor-standing mounting frame, a grinding device, a suspension separation device and a circulation device fixedly mounted on the mounting frame, the grinding device is used to grind rice into rice powder and discharge it to the suspension separation device, the suspension separation device is used to perform air suspension separation on the rice powder and discharge the rice powder powder to the outside for collection and treatment, and discharge the rice powder particles into the circulation device, the circulation device is used to receive the rice powder particles discharged by the suspension separation device and transport them to the grinding device for secondary grinding and processing, and its significance lies in that the rice powder powder and the rice powder particle mixture that have undergone a primary grinding process are suspended and separated and screened by air suspension, the separated rice powder powder is directly discharged and collected, and the separated rice powder particles are circulated for secondary grinding and processing, so as to ensure that the rice can be fully ground;

[0004] However, the above processing equipment grinds rice in one grinding device through multiple cycles when processing rice. Due to its single size, it is difficult to adapt to the processing of rice of different varieties and specifications, resulting in low processing efficiency. Therefore, an environmentally friendly rice processing impurity removal device is proposed to solve the above-mentioned problem. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an environmentally friendly rice processing impurity removal device in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an environmentally friendly rice processing impurity removal device, including a processing box, and also including:

[0007] A lower hopper, fixedly connected to the top of the processing box, for storing rice to be processed;

[0008] a processing box, mounted on the front of the processing box, for processing the milled rice;

[0009] A fixed frame, fixedly connected to the bottom of the processing box;

[0010] A support frame connected between the bottom of the processing box and the fixed frame;

[0011] A grinding mechanism, arranged inside the processing box, for grinding and husking rice;

[0012] A grinding mechanism, disposed in the processing box, for secondary grinding of rice;

[0013] A polishing mechanism is disposed in the processing box and located on one side of the grinding mechanism, and is used for polishing the hulled rice;

[0014] Wherein, the grinding mechanism comprises:

[0015] Two grinding shafts are rotatably connected to the inner wall of the processing box;

[0016] A fixed cylinder is fixedly connected to the outer wall of the grinding shaft, and a rubber cylinder is fixedly sleeved on the outer wall of the fixed cylinder, and the two rubber cylinders rotate towards each other to grind the rice husk;

[0017] A discharge shaft is rotatably connected to the inner wall of the processing box and is located in the processing box for rotation;

[0018] The polishing mechanism comprises:

[0019] A polishing cylinder is fixedly connected to the outer wall of the discharging shaft and is used for polishing the processed rice.

[0020] Preferably, the grinding mechanism further comprises:

[0021] A plurality of movable rubber strips are movably connected to the rubber tube and the fixed tube;

[0022] A plurality of movable shafts, three in a group, are fixedly connected to the movable rubber strip and movably connected in the fixed cylinder;

[0023] A plurality of springs are sleeved on the outer wall of the movable shaft and fixedly connected between the movable rubber strip and the fixed cylinder to pull the movable rubber strip close to the fixed cylinder;

[0024] A limiting rod, mounted on the inner wall of the fixing cylinder;

[0025] A conical cylinder is movably connected to the inner wall of the fixed cylinder and slides on the outer wall of the limiting rod, and the conical cylinder contacts the inner side of the movable shaft arranged in a ring shape in the middle part, so as to push the movable shaft to move outward;

[0026] An adjusting screw is rotatably connected to the inner wall of the fixed cylinder through a bearing, and a hexagonal groove is provided on one side for rotating the adjusting screw, and the adjusting screw is threadably connected to the tapered cylinder;

[0027] A plurality of grinding strips, two of which are fixedly connected to the outer wall of the rubber tube and are located between every two movable rubber strips.

[0028] Preferably, an inner baffle is fixedly connected to the inner wall of the processing box and is concentrically arranged with the outer wall of the rubber tube;

[0029] A wind selection hole is provided below the inner baffle plate for sucking the rice husks;

[0030] The inner wall of the processing box is fixedly connected with a discharge bin, which is wound around the outer wall of the discharge spiral and cooperates with the discharge spiral to rotate and discharge materials;

[0031] A material discharge inclined plate, fixedly connected to the inner wall of the processing box and located below the material discharge bin;

[0032] A discharging pipe is installed on one side of the processing box for discharging small-grain rice.

[0033] Preferably, the grinding mechanism comprises:

[0034] The grinding cylinder is arranged in an elliptical cylindrical shape and is fixedly connected to the outer wall of the discharge shaft, and a cavity is arranged between the inner wall of the grinding cylinder and the discharge shaft;

[0035] Three fixing rings are respectively connected by a plurality of mounting rods and fixedly connected to the inner wall of the processing box;

[0036] A middle partition is fixedly connected to the outer wall of the middle fixed ring to divide the processing box into two inner chambers;

[0037] A plurality of screens, fixedly connected between two rear fixing rings and a mounting rod, for screening rice husks;

[0038] Two push blocks 1 are symmetrically connected to the outer wall of the grinding cylinder, and the outer wall of the grinding cylinder is provided with a through hole, which is located on one side of the push block 1, and cooperates with the push block 1 to rotate and contact the screen 1, grind the rice, and push the rice into the inner cavity;

[0039] A plurality of connection blocks are fixedly connected to the inner wall of the grinding cylinder and connected to the outer wall of the discharge shaft.

[0040] Preferably, the polishing mechanism further comprises:

[0041] A plurality of polishing plates are spaced apart and fixedly connected between the two front fixing rings and the mounting rod, and are used for polishing rice;

[0042] A plurality of screen meshes 2 are arranged between each two polishing plates and fixedly connected to the two front fixing rings and the mounting rods for screening broken rice;

[0043] Two push blocks 2 are fixedly connected to the outer wall of the polishing cylinder;

[0044] The polishing cylinder is oval in shape, and two push blocks are symmetrically arranged on both sides of the push block. The polishing cylinder is arranged in an arc shape on one side close to the grinding cylinder to facilitate the ground rice to enter the polishing cylinder.

[0045] Preferably, a wind selection mechanism is provided at the bottom of the processing box for negative pressure adsorption of rice husks;

[0046] Wherein, the wind selection mechanism comprises:

[0047] The air inlet blade is rotatably connected to the inner wall of the processing box through a rotating rod, and a filter plate is installed on the inner wall of the processing box to divide the bottom of the processing box into two cavities, and the air inlet blade is located in the rear cavity;

[0048] The impeller is rotatably connected to the outer wall of the rotating rod on one side of the air inlet blade and is located in the front cavity;

[0049] A lower suction pipe, fixedly connected to the outer wall of the processing box and connected to the cavity below the grinding mechanism, for absorbing the rice husks screened by the grinding mechanism;

[0050] The upper suction pipe is U-shaped and connected to the outer wall of the processing box to absorb the ground rice husks on the inner wall of the processing box;

[0051] The upper suction pipe is in communication with the lower suction pipe, and is connected to the processing box and to the cavity of the impeller;

[0052] The discharge conduit is fixedly connected to the outer wall of the processing box and communicated with the inner cavity of the impeller;

[0053] A discharge cylinder is fixedly connected to the discharge conduit and is used for discharging rice husks.

[0054] Preferably, a discharging mechanism is provided on one side of the processing box for adjusting the rice discharging speed;

[0055] The discharging mechanism comprises:

[0056] A discharge hopper, fixedly connected to one side of the processing box;

[0057] A U-shaped frame is fixedly connected to the outer wall of the processing box, and a discharge hole is opened on one side of the processing box for discharging rice;

[0058] A disc is arranged on one side of the discharge hole to limit the discharge of rice.

[0059] Preferably, the discharging mechanism further comprises:

[0060] A telescopic cylinder is fixedly connected to the inner wall of the U-shaped frame and is movably connected to a ball head rod at the telescopic end of the telescopic cylinder;

[0061] One side of the ball head rod is fixedly connected to the disc;

[0062] A return spring is arranged inside the telescopic cylinder and is used to push the telescopic cylinder to contact the ball head rod;

[0063] A screw rod is threadedly connected to the U-shaped frame, and its threaded end abuts against the telescopic end of the telescopic cylinder;

[0064] The push rod is fixedly connected to the outer wall of the polishing cylinder and eccentrically contacts the disc.

[0065] The present invention adopts the above technical solution to bring the following beneficial effects:

[0066] 1. The environmentally friendly rice processing impurity removal device, through the provided grinding mechanism, uses an adjustable movable rubber strip to change the distance between two rubber cylinders, so as to adapt to the processing of rice of different sizes, thereby improving the processing effect. At the same time, the design of multiple grinding strips and movable rubber strips in the grinding mechanism increases the friction during grinding, thereby improving the shelling effect.

[0067] 2. The environment-friendly rice processing impurity removal device, through the grinding mechanism, is pushed by the push block on the rotating grinding cylinder and generates friction with the inner side of the screen, so as to further remove the rice husk from the rice, and absorb the rice husk through the lower suction pipe, so as to improve the rice husking and impurity removal effect.

[0068] 3. The environment-friendly rice processing impurity removal device, through the polishing mechanism, utilizes the rotating polishing cylinder to drive the push block 2 to rotate, and generates contact with the brush on the polishing plate, and through continuous rotation and friction, removes the bran layer and germ on the surface of the rice, thereby making the rice whiter.

[0069] 4. The environmentally friendly rice processing impurity removal device, through the air selection mechanism, utilizes the rotation of the impeller to cooperate with the air inlet blades to generate suction, and blows out the rice husks sucked in by the lower suction pipe and the upper suction pipe through the rotation of the impeller, thereby improving the impurity removal effect on the rice.

[0070] 5. The environmentally friendly rice processing impurity removal device uses a discharging mechanism to deflect the disc at the ball head rod and the telescopic cylinder, so that the polished rice overflows when it rotates. At the same time, the distance from the telescopic end inside the telescopic cylinder can be shortened by rotating the screw rod to reduce the reset distance of the reset spring, so that the discharging speed can be controlled to achieve the grinding time in the grinding cylinder mechanism and improve the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 It is a schematic diagram of the structure of the present invention;

[0072] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0073] Figure 3 It is a schematic diagram of the explosion structure of the present invention;

[0074] Figure 4 It is a schematic diagram of the structure of the grinding mechanism and the polishing mechanism of the present invention;

[0075] Figure 5 It is a schematic diagram of the structure of the discharging mechanism of the present invention;

[0076] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the processing box of the present invention;

[0077] Figure 7 It is a schematic diagram of the structure of the grinding mechanism of the present invention.

[0078] In the figure: 1, processing box; 2, lower hopper; 3, processing box; 4, fixed frame; 5, support frame; 6, grinding mechanism; 61, grinding shaft; 62, fixed cylinder; 63, discharge shaft; 64, discharge spiral; 65, rubber cylinder; 66, movable rubber strip; 67, spring 1; 68, movable shaft; 69, limit rod; 610, adjusting screw; 611, conical cylinder; 612, grinding strip; 7, grinding mechanism; 71, grinding cylinder; 72, fixed ring; 73, screen 1; 74, middle partition; 75, push block 1; 76, connecting block; 77, installation rod; 8 , polishing mechanism; 81, polishing cylinder; 82, push block 2; 83, polishing plate; 84, screen 2; 85, push rod; 9, air selection mechanism; 91, air inlet blade; 92, impeller; 93, discharge duct; 94, lower suction pipe; 95, upper suction pipe; 96, discharge cylinder; 10, discharge mechanism; 101, discharge hopper; 102, disc; 103, U-shaped frame; 104, ball head rod; 105, telescopic cylinder; 106, screw; 107, reset spring; 11, inner baffle; 12, air selection hole; 13, discharge bin; 14, discharge inclined plate; 15, discharge pipe. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0080] See also Figure 1-7 One embodiment of the present invention is: an environmentally friendly rice processing impurity removal device, including a processing box 1, and also including:

[0081] A lower hopper 2 is fixedly connected to the top of the processing box 1 and is used to store rice to be processed;

[0082] A processing box 3, installed on the front of the processing box 1, is used to process the milled rice;

[0083] A fixed frame 4 is fixedly connected to the bottom of the processing box 1;

[0084] A support frame 5 is connected between the bottom of the processing box 3 and the fixing frame 4;

[0085] A grinding mechanism 6 is arranged inside the processing box 1 and is used for grinding and husking rice;

[0086] A grinding mechanism 7, disposed in the processing box 3, for secondary grinding of rice;

[0087] A polishing mechanism 8 is disposed in the processing box 3 and located on one side of the grinding mechanism 7, and is used for polishing the hulled rice;

[0088] Wherein, the grinding mechanism 6 comprises:

[0089] Two grinding shafts 61 are rotatably connected to the inner wall of the processing box 1;

[0090] The fixed cylinder 62 is fixedly connected to the outer wall of the grinding shaft 61, and the outer wall of the fixed cylinder 62 is fixedly sleeved with a rubber cylinder 65, and the two rubber cylinders 65 rotate towards each other to grind the rice husk;

[0091] The discharge shaft 63 is rotatably connected to the inner wall of the processing box 1 and is located in the processing box 3 for rotation;

[0092] The polishing mechanism 8 comprises:

[0093] The polishing cylinder 81 is fixedly connected to the outer wall of the discharging shaft 63 and is used for polishing the processed rice.

[0094] The grinding mechanism 6 also includes:

[0095] A plurality of movable rubber strips 66 are movably connected to the rubber tube 65 and the fixed tube 62;

[0096] A plurality of movable shafts 68 are fixedly connected to the movable rubber strip 66 in groups of three, and are movably connected in the fixed cylinder 62;

[0097] A plurality of springs 67 are sleeved on the outer wall of the movable shaft 68 and fixedly connected between the movable rubber strip 66 and the fixed tube 62 to pull the movable rubber strip 66 closer to the fixed tube 62;

[0098] A limiting rod 69 is mounted on the inner wall of the fixing cylinder 62;

[0099] The conical cylinder 611 is movably connected to the inner wall of the fixed cylinder 62 and slides on the outer wall of the limiting rod 69. The conical cylinder 611 contacts the inner side of the movable shaft 68 arranged in a ring shape in the middle part, so as to push the movable shaft 68 to move outward.

[0100] The adjusting screw 610 is rotatably connected to the inner wall of the fixed cylinder 62 through a bearing, and a hexagonal groove is provided on one side for rotating the adjusting screw 610, and the adjusting screw 610 is threadedly connected to the tapered cylinder 611;

[0101] A plurality of grinding strips 612 , two of which are fixedly connected to the outer wall of the rubber tube 65 and are located between every two movable rubber strips 66 .

[0102] The inner wall of the processing box 1 is fixedly connected with an inner baffle 11, and is arranged concentrically with the outer wall of the rubber tube 65;

[0103] A wind selection hole 12 is provided below the inner baffle plate 11 for sucking in the rice husks;

[0104] The inner wall of the processing box 1 is fixedly connected with a discharge bin 13, which is wound around the outer wall of the discharge screw 64 and cooperates with the discharge screw 64 to rotate and discharge materials;

[0105] The material discharge inclined plate 14 is fixedly connected to the inner wall of the processing box 1 and is located below the material discharge bin 13;

[0106] A discharging pipe 15 is installed on one side of the processing box 1 for discharging small-grain rice.

[0107] Working principle: When processing rice, put the unhulled rice directly into the lower hopper 2. According to the processing requirements, open the door panel on the front of the processing box 1, and then turn the hexagonal grooves on the two adjusting screws 610. At this time, the adjusting screws 610 will be driven to rotate. According to the requirements of different sizes of rice, adjust, and then drive the conical cylinder 611 to move through the adjusting screws 610 to push the movable shaft 68 to move, so as to push the movable rubber strip 66 outward to expand the rotating diameter, so as to meet the smaller processing requirements, and vice versa, to meet the processing requirements of larger particle sizes;

[0108] During processing, the two grinding shafts 61 are driven to rotate in opposite directions by an external power device, thereby driving the fixed cylinder 62 and the rubber cylinder 65 to rotate, grinding the rice dropped from the lower hopper 2 to achieve hulling. At the same time, the plurality of grinding bars 612 and the movable rubber bars 66 are provided to increase the friction during grinding, thereby improving the hulling effect during grinding.

[0109] When the grinding is completed, under the action of gravity, the rice and rice husks will fall into the inclined surface of the inner baffle 11 and fall down. At this time, the rice husks and millet grains are sucked by the wind force of the air separation mechanism 9 and sucked out from the air separation hole 12 along the upper suction pipe 95. At the same time, the millet grains will fall onto the discharge inclined plate 14 through the through hole at the discharge bin 13 and the processing box 1 under the action of gravity, and be discharged and separated along the discharge pipe 15. At the same time, the rice that falls into the discharge bin 13 under the action of gravity will be driven to rotate by the discharge shaft 63 driven by an external power device, and then the rice in the discharge bin 13 will be spirally discharged to the processing box 3 for processing under the rotation of the discharge spiral 64.

[0110] See also Figure 1-7 Based on the above embodiment, in another embodiment of the present invention, the grinding mechanism 7 includes:

[0111] The grinding cylinder 71 is elliptical and fixedly connected to the outer wall of the discharge shaft 63, and a cavity is provided between the inner wall of the grinding cylinder 71 and the discharge shaft 63;

[0112] The three fixing rings 72 are connected by a plurality of mounting rods 77 and fixedly connected to the inner wall of the processing box 3;

[0113] The middle partition plate 74 is fixedly connected to the outer wall of the middle fixed ring 72 to divide the processing box 3 into two inner chambers;

[0114] A plurality of screens 73, fixedly connected between the two rear fixing rings 72 and the mounting rod 77, for screening rice husks;

[0115] Two push blocks 75 are symmetrically connected to the outer wall of the grinding cylinder 71, and the outer wall of the grinding cylinder 71 is provided with a through hole, which is located on one side of the push block 75, so as to cooperate with the push block 75 to rotate and contact with the screen 73, grind the rice, and push the rice into the inner cavity;

[0116] A plurality of connection blocks 76 are fixedly connected to the inner wall of the grinding cylinder 71 and connected to the outer wall of the discharge shaft 63 .

[0117] Working principle: After the rice is conveyed into the processing box 3 by the discharge spiral, the grinding cylinder is driven to rotate by the discharge shaft 63. At this time, the unbroken rice husks on the rice will be ground and crushed under the push of the push block 75 on its outer wall. At the same time, the rice husks will be adsorbed by the lower suction pipe 94 along the screen 73 under the suction force of the air selection mechanism 9, thereby improving the rice processing and husking effect. The husked rice will be pushed by the push block 75 and enter the inner cavity of the grinding cylinder 71 along the through hole, and enter the polishing mechanism 8 with its inner cavity for polishing.

[0118] See also Figure 1-7Based on the above embodiment, in another embodiment of the present invention, the polishing mechanism 8 further includes:

[0119] A plurality of polishing plates 83, spaced apart and fixedly connected between the two front fixing rings 72 and the mounting rod 77, for polishing rice;

[0120] A plurality of screen meshes 84 are arranged between each two polishing plates 83 and fixedly connected to the two front fixing rings 72 and the mounting rod 77 for screening broken rice;

[0121] Two push blocks 82 are fixedly connected to the outer wall of the polishing cylinder 81;

[0122] The polishing cylinder 81 is oval in shape, and two push blocks 82 are symmetrically arranged on both sides of the push block 82 . The polishing cylinder 81 is arranged in an arc shape on one side close to the grinding cylinder 71 to facilitate the ground rice to enter the polishing cylinder 81 .

[0123] Working principle: When the discharge shaft 63 rotates, it drives the elliptical polishing cylinder 81 to rotate, which will produce resistance to the rice, thereby pushing the rice through the push block 82, causing contact with the bristles on the polishing plate 83, and synchronously rotating and rubbing, so as to polish away the impurities on the rice. At the same time, the millet grains will fall into the processing box 3 due to gravity at the screen 84 and be discharged from the discharge hole at the bottom thereof.

[0124] See also Figure 1-7 , based on the above embodiment, in another embodiment of the present invention, a wind selection mechanism 9 is provided at the bottom of the processing box 1 for negative pressure adsorption of rice husks;

[0125] Among them, the wind selection mechanism 9 includes:

[0126] The air inlet blade 91 is rotatably connected to the inner wall of the processing box 1 through a rotating rod, and a filter plate is installed on the inner wall, dividing the bottom of the processing box 1 into two cavities, and the air inlet blade 91 is located in the rear cavity;

[0127] The impeller 92 is rotatably connected to the outer wall of the rotating rod on one side of the air inlet blade 91 and is located in the front cavity;

[0128] A lower suction pipe 94, fixedly connected to the outer wall of the processing box 3 and connected to the cavity below the grinding mechanism 7, is used to absorb the rice husks screened by the grinding mechanism 7;

[0129] The upper suction pipe 95 is U-shaped and connected to the outer wall of the processing box 1, and is used to absorb the ground rice husks on the inner wall of the processing box 1;

[0130] The upper suction pipe 94 is in communication with the lower suction pipe 95 and is connected to the processing box 1 and to the cavity of the impeller 92;

[0131] The discharge conduit 93 is fixedly connected to the outer wall of the processing box 1 and communicates with the inner cavity of the impeller 92;

[0132] The discharge cylinder 96 is fixedly connected to the discharge conduit 93 and is used for discharging rice husks.

[0133] Working principle: When processing is in progress, the rotating rod is driven to rotate by an external power device, so that the air inlet blades and the impeller 92 rotate, and the inner wall of the impeller 92 contacts to generate a negative pressure effect, and then the air is exhausted to the outside through the discharge duct 93, and suction is generated through the lower suction pipe 94 and the upper suction pipe 95 to adsorb the rice husks processed in the processing box 3 and the processing box 1, and discharged along the discharge duct 93, and the rice husks are discharged through the discharge barrel 96, thereby improving the impurity removal effect on rice.

[0134] See also Figure 1-7 , based on the above embodiment, in another embodiment of the present invention, a discharging mechanism 10 is provided on one side of the processing box 3 for adjusting the rice discharging speed;

[0135] The discharging mechanism 10 comprises:

[0136] The discharge hopper 101 is fixedly connected to one side of the processing box 3;

[0137] The U-shaped frame 103 is fixedly connected to the outer wall of the processing box 3, and a discharge hole is opened on one side of the processing box 3 for discharging rice;

[0138] The disc 102 is arranged on one side of the discharge hole to limit the discharge of rice.

[0139] The discharging mechanism 10 further comprises:

[0140] The telescopic cylinder 105 is fixedly connected to the inner wall of the U-shaped frame 103, and a ball head rod 104 is movably connected to the telescopic end of the telescopic cylinder 105;

[0141] One side of the ball head rod 104 is fixedly connected to the disc 102;

[0142] A return spring 107 is disposed inside the telescopic cylinder 105 and is used to push the telescopic cylinder 105 to contact the ball head rod 104;

[0143] The screw rod 106 is threadedly connected to the U-shaped frame 103, and its threaded end abuts against the telescopic end of the telescopic cylinder 105;

[0144] The push rod 85 is fixedly connected to the outer wall of the polishing cylinder 81 and eccentrically abuts against the disc 102 .

[0145] Working principle: After the rice is polished, it rotates and hits the disc 102 through the push rod 85, thereby generating extrusion, pushing out the rice inside and dropping it into the discharge hopper 101 for unloading. At this time, the internal push rod pushes 85 and squeezes the disc 102, thereby generating eccentric rotation around the connection between the ball head rod 104 and the telescopic cylinder 105, so that the polished rice overflows from the fitting part of the disc 102 and the processing box 103. When it is necessary to control the speed of discharging, the screw 106 is rotated to shorten the distance from the telescopic end inside the telescopic cylinder 105 and reduce the reset distance of the reset spring 107, so that the discharging speed can be controlled to achieve the grinding time in the grinding cylinder mechanism 8 and improve the grinding effect.

[0146] The present invention provides an environmentally friendly rice processing impurity removal device. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. An environmentally friendly rice processing impurity removal device, comprising a processing box (1), characterized in that: Also includes: A lower hopper (2) fixedly connected to the top of the processing box (1) and used for storing rice to be processed; A processing box (3), installed on the front of the processing box (1), for processing the milled rice; A fixed frame (4) fixedly connected to the bottom of the processing box (1); A support frame (5) connected between the bottom of the processing box (3) and the fixing frame (4); A grinding mechanism (6) is arranged inside the processing box (1) and is used for grinding and husking rice; A grinding mechanism (7), arranged in the processing box (3), for secondary grinding of rice; A polishing mechanism (8) is arranged in the processing box (3) and located on one side of the grinding mechanism (7), and is used for polishing the hulled rice; Wherein, the grinding mechanism (6) comprises: Two grinding shafts (61) are rotatably connected to the inner wall of the processing box (1); A fixed cylinder (62) is fixedly connected to the outer wall of the grinding shaft (61), and a rubber cylinder (65) is fixedly sleeved on the outer wall of the fixed cylinder (62), and the two rubber cylinders (65) rotate towards each other to grind the rice husk; A discharge shaft (63) is rotatably connected to the inner wall of the processing box (1) and is located in the processing box (3) for rotation; The polishing mechanism (8) comprises: A polishing cylinder (81) is fixedly connected to the outer wall of the discharge shaft (63) and is used for polishing the processed rice.

2. The environmentally friendly rice processing impurity removal device according to claim 1, characterized in that: The grinding mechanism (6) further comprises: A plurality of movable rubber strips (66) movably connected to the rubber tube (65) and the fixed tube (62); A plurality of movable shafts (68), which are fixedly connected to the movable rubber strip (66) in groups of three, and are movably connected in the fixed cylinder (62); A plurality of springs (67) are sleeved on the outer wall of the movable shaft (68) and fixedly connected between the movable rubber strip (66) and the fixed tube (62) to pull the movable rubber strip (66) closer to the fixed tube (62); A limiting rod (69) is mounted on the inner wall of the fixing cylinder (62); A conical cylinder (611) is movably connected to the inner wall of the fixed cylinder (62) and slides on the outer wall of the limiting rod (69), and the conical cylinder (611) contacts the inner side of the movable shaft (68) arranged in a ring shape in the middle part, so as to push the movable shaft (68) to move outward; An adjusting screw (610) is rotatably connected to the inner wall of the fixed cylinder (62) via a bearing, and a hexagonal groove is provided on one side for rotating the adjusting screw (610), and the adjusting screw (610) is threadedly connected to the conical cylinder (611); A plurality of grinding strips (612), two of which are fixedly connected to the outer wall of the rubber tube (65) and are located between every two movable rubber strips (66).

3. The environmentally friendly rice processing impurity removal device according to claim 2, characterized in that: An inner baffle (11) is fixedly connected to the inner wall of the processing box (1) and is arranged concentrically with the outer wall of the rubber tube (65); A wind selection hole (12) is provided below the inner baffle plate (11) for sucking in rice husks; The inner wall of the processing box (1) is fixedly connected with a discharge bin (13), which is arranged around the outer wall of the discharge screw (64) and cooperates with the discharge screw (64) to rotate and discharge materials; A material discharge inclined plate (14) is fixedly connected to the inner wall of the processing box (1) and is located below the material discharge bin (13); A discharge pipe (15) is installed on one side of the processing box (1) for discharging small-grain rice.

4. The environmentally friendly rice processing impurity removal device according to claim 3, characterized in that: The grinding mechanism (7) comprises: The grinding cylinder (71) is arranged in an elliptical cylindrical shape and is fixedly connected to the outer wall of the discharge shaft (63), and a cavity is arranged between the inner wall of the grinding cylinder (71) and the discharge shaft (63); Three fixing rings (72) are respectively connected by a plurality of mounting rods (77) and fixedly connected to the inner wall of the processing box (3); A middle partition plate (74) is fixedly connected to the outer wall of the middle fixed ring (72) to divide the processing box (3) into two inner chambers; A plurality of screens (73) are fixedly connected between the two rear fixing rings (72) and the mounting rod (77) for screening rice husks; Two push blocks (75) are symmetrically connected to the outer wall of the grinding cylinder (71), and the outer wall of the grinding cylinder (71) is provided with a through hole, which is located on one side of the push block (75), and cooperates with the push block (75) to rotate and contact the screen (73) to grind the rice and push the rice into the inner cavity; A plurality of connection blocks (76) are fixedly connected to the inner wall of the grinding cylinder (71) and connected to the outer wall of the discharge shaft (63).

5. The environmentally friendly rice processing impurity removal device according to claim 4, characterized in that: The polishing mechanism (8) further comprises: A plurality of polishing plates (83) are spaced apart and fixedly connected between the two front fixing rings (72) and the mounting rod (77) for polishing rice; A plurality of screen meshes (84) are arranged between each two polishing plates (83) and fixedly connected to the two front fixing rings (72) and the mounting rod (77) for screening broken rice; Two push blocks (82) are fixedly connected to the outer wall of the polishing cylinder (81); The polishing cylinder (81) is oval in shape, and two push blocks (82) are symmetrically arranged on both sides of the push block (82), wherein the polishing cylinder (81) is arranged in an arc shape on one side close to the grinding cylinder (71), so that the ground rice can enter the polishing cylinder (81) easily.

6. The environmentally friendly rice processing impurity removal device according to claim 5, characterized in that: The bottom of the processing box (1) is provided with an air separation mechanism (9) for negative pressure adsorption of rice husks; Wherein, the wind selection mechanism (9) comprises: An air inlet blade (91) is rotatably connected to the inner wall of the processing box (1) via a rotating rod, and a filter plate is installed on the inner wall of the processing box (1), dividing the bottom of the processing box (1) into two cavities, and the air inlet blade (91) is located in the rear cavity; An impeller (92) is rotatably connected to the outer wall of the rotating rod on one side of the air inlet blade (91) and is located in the front cavity; A lower suction pipe (94) fixedly connected to the outer wall of the processing box (3) and connected to the cavity below the grinding mechanism (7) for absorbing the rice husks screened by the grinding mechanism (7); An upper suction pipe (95) is arranged in a U shape and connected to the outer wall of the processing box (1) for absorbing the ground rice husks on the inner wall of the processing box (1); The upper suction pipe (94) is in communication with the lower suction pipe (95), and is connected to the processing box (1), and is connected to the cavity of the impeller (92); The discharge conduit (93) is fixedly connected to the outer wall of the processing box (1) and communicates with the inner cavity of the impeller (92); The discharge cylinder (96) is fixedly connected to the discharge conduit (93) and is used for discharging rice husks.

7. The environmentally friendly rice processing impurity removal device according to claim 6, characterized in that: A discharging mechanism (10) is provided on one side of the processing box (3) for adjusting the discharging speed of rice; The discharging mechanism (10) comprises: A discharge hopper (101) is fixedly connected to one side of the processing box (3); A U-shaped frame (103) is fixedly connected to the outer wall of the processing box (3), and a discharge hole is provided on one side of the processing box (3) for discharging rice; A disc (102) is arranged on one side of the discharge hole and is used to limit the discharge of rice.

8. The environmentally friendly rice processing impurity removal device according to claim 7, characterized in that: The discharging mechanism (10) further comprises: A telescopic cylinder (105) is fixedly connected to the inner wall of the U-shaped frame (103), and is movably connected to a ball head rod (104) at the telescopic end of the telescopic cylinder (105); One side of the ball head rod (104) is fixedly connected to the disc (102); A return spring (107) is disposed inside the telescopic cylinder (105) and is used to push the telescopic cylinder (105) to contact the ball head rod (104); A screw rod (106) is threadedly connected to the U-shaped frame (103), and a threaded end thereof abuts against the telescopic end of the telescopic cylinder (105); The push rod (85) is fixedly connected to the outer wall of the polishing cylinder (81) and eccentrically contacts the disc (102).

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