Polishing machine for rice processing

Abstract

The utility model discloses a rice processing polisher, including machine body and polishing chamber, the polishing chamber is equipped with the sieve piece that surrounds the outer side of polishing roll, the surface of polishing roll is equipped with pushing section, dampening mixing section, pre-grinding section, fine grinding section and tail section along the direction of feed bin and discharge bin in proper order, is equipped with the blowing subassembly at the position of wrapping the tail section. The utility model relates to the technical field of rice processing, and through four-section treatment of dampening mixing, pre-polishing, fine polishing and water vapor removal cooling, the rice polishing effect is remarkably improved. Air enters the clamping bin through the net cylinder to be blown to rice, and the blown rice bran powder and part of broken rice penetrate through the gap to flow back to the screen piece to be sucked away under the dual action of air blowing and negative pressure suction. By means of the design, rice bran powder and broken rice in finished rice are effectively reduced. According to the polishing machine for rice processing, the problems that an existing polishing machine is not thorough in polishing, and rice bran powder and broken rice are left in finished rice are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rice processing technical field, concretely is a polishing machine for rice processing. BACKGROUND

[0002] In the modern rice processing process, the polishing machine as one of the key equipment, its role is mainly to remove the bran on the surface of white rice, make the rice surface neat and form a layer of wax protective layer. This process not only improves the appearance quality of rice, but also prolongs the shelf life of rice. The traditional rice polishing machine usually includes water mixing process, pre-grinding process and fine grinding process. In these processes, through mechanical movement, the friction and extrusion between the rice, between the polishing roller and the rice and between the rice and the rice sieve are removed, and the bran and comedones on the surface of the rice are removed. At the same time, the starch layer on the surface of the rice is gelatinized and crystallized to form a bright protective film, thereby improving the surface neatness of the rice.

[0003] However, the existing polishing machine still has some problems in actual use. Because there are many fine rice bran and fine dust generated in the polishing process, although it can be removed by negative pressure strong air suction, but part of the bran and broken rice is still left in the finished product rice, which seriously affects the quality of the finished product. Therefore, how to effectively reduce the bran and broken rice in the polished rice and improve the quality of the finished product rice has become a problem to be solved in the current rice processing industry. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a polishing machine for rice processing, which solves the problem of how to reduce the residual bran and broken rice in the finished product rice flowing out of the polishing machine.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: a polishing machine for rice processing, comprising a machine body and a polishing chamber, the polishing chamber is arranged on the machine body, the polishing chamber is provided with a feeding bin and a discharging bin, a polishing roller is rotatably connected in the polishing chamber along the direction of the feeding bin and the discharging bin, a sieve piece is arranged around the outer side of the polishing roller in the polishing chamber, the surface of the polishing roller is sequentially provided with a pushing section, a water mixing section, a pre-grinding section, a fine grinding section and a tail section along the direction of the feeding bin and the discharging bin, a gas blowing assembly is arranged at the tail section, the gas blowing assembly comprises a gas chamber, an air inlet is arranged on the gas chamber, the air inlet is connected with an air generator, a mesh cylinder is arranged in the gas chamber, an air equalizing chamber is formed between the mesh cylinder and the gas chamber, and a clamping chamber is formed between the mesh cylinder and the tail section.

[0006] Preferably, the mesh cylinder comprises two oppositely arranged flanges, the flanges are fixed with the gas chamber, and the inner sides of the two flanges are fixed with an inner mesh cylinder.

[0007] Preferably, the outer wall surface of the inner mesh cylinder is provided with fins fixed with the flange, and a ventilation groove is formed between two adjacent fins.

[0008] Preferably, the outer wall surface of the tail section is provided with spiral blades, and the spiral blades are arranged close to the refining section.

[0009] Preferably, a gap of 2-3mm is left between the outer edge of the spiral blade and the inner mesh cylinder.

[0010] Preferably, the outer wall surface of the refining section is provided with a polishing block.

[0011] Preferably, the outer wall surface of the pre-milling section is provided with a plurality of straight ribs, and a clamping groove is formed between two adjacent straight ribs.

[0012] Preferably, the straight ribs include first straight ribs and second straight ribs arranged alternately along the axis direction of the pre-milling section, and a connecting rib is connected between the first straight rib and the second straight rib, the inner side surface of the first straight rib is provided with a second inclined surface, and the outer side surface of the second straight rib is provided with a first inclined surface.

[0013] Preferably, the outer wall surface of the water landing mixing section is provided with an inclined rib.

[0014] Preferably, the outer wall surface of the pushing section is provided with a pushing blade.

[0015] The polishing machine for rice processing has the advantages that, compared with the prior art, the polishing effect on rice is significantly improved through four-stage processing of water landing mixing, pre-polishing, fine polishing and water vapor removal and cooling.

[0016] In addition, the polishing machine also performs cooling treatment through the clamping bin outside the tail section. The gas enters the clamping bin through the mesh cylinder and blows on the rice, which not only helps to reduce the temperature of the rice, but also blows up the residual bran and part of the broken rice. Under the action of negative pressure in the polishing chamber, the blown-up bran and part of the broken rice are returned to the sieve piece through the gap under the dual action of gas blowing and negative pressure suction and are sucked away. This design effectively reduces the bran and broken rice in the finished rice and significantly improves the quality of the finished rice.

[0017] In summary, the polishing machine for rice processing effectively solves the problems of incomplete polishing, residual bran and broken rice in the finished rice and the like of the existing polishing machine. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1It is the main view structural schematic drawing of the machine body after being partially cut open.

[0019] Figure 2 It is the main view structural schematic drawing of the polishing roller.

[0020] Figure 3 It is the partial structure three-dimensional structural schematic drawing of the straight rib.

[0021] Figure 4 It is the three-dimensional structural schematic drawing of the net cylinder.

[0022] Mark explanation in the drawing

[0023] 1, machine body, 2, air generator, 3, polishing chamber, 4, discharge bin, 5, feeding bin, 6, air blowing assembly, 61, air chamber, 62, air inlet, 63, air equalizing bin, 64, net cylinder, 641, flange, 642, inner net cylinder, 643, fin, 644, ventilation groove, 65, clamping bin, 7, polishing roller, 71, tail section, 711, spiral blade, 72, fine grinding section, 721, polishing block, 73, pre-grinding section, 731, straight rib, 731a, first straight rib, 731b, connecting rib, 731c, second straight rib, 731d, first inclined surface, 731e, second inclined surface, 732, clamping groove, 74, water-landing mixing section, 741, inclined rib, 75, pushing section, 751, pushing blade, 8, screen piece. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. As long as the effect of the utility model can be achieved, various changes can be made to the implementation solutions.

[0025] By the personnel in the art, the parts in the case are sequentially connected, and the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is the technology known in the art, and the following mainly introduces the working principle and process.

[0026] Reference Figures 1-4 A polishing machine for rice processing is described.

[0027] As Figure 1 shown, comprising machine body 1 and polishing chamber 3, polishing chamber 3 is arranged on machine body 1, polishing chamber 3 is provided with feeding bin 5 and discharge bin 4, polishing roller 7 is rotatably connected in polishing chamber 3 along the direction of feeding bin 5 and discharge bin 4, and screen piece 8 is arranged around the outer side of polishing roller 7 in polishing chamber 3.

[0028] The rice to be polished enters the polishing chamber 3 from the feed bin 5 , is polished by the polishing roller 7 , and is then output through the discharge bin 4 .

[0029] like Figure 1 As shown, the surface of the polishing roller 7 is provided with a pushing section 75, a water mixing section 74, a pre-grinding section 73, a fine grinding section 72, and a tail section 71 in sequence along the direction of the feed bin 5 and the discharge bin 4. The screen 8 is mainly located outside the water mixing section 74, the pre-grinding section 73, and the fine grinding section 72, and a negative pressure is formed outside the screen 8. The bran powder produced by the rice during the polishing process is sucked out by the negative pressure. This technology is existing technology and will not be described in detail here. According to the working principle of the polishing machine, after entering the polishing chamber 3, the rice is sequentially subjected to four stages of water mixing, pre-polishing, fine polishing, and dehumidification and cooling. Specifically, the rice enters between the polishing roller 7 and the screen 8, passes through the pushing section 75, enters the water mixing section 74 for mixing with water mist, then passes through the pre-grinding section 73 and the fine grinding section 72 in sequence, undergoes rotational extrusion and friction, and then undergoes polishing. Finally, it enters the discharge bin 4 through the tail section 71.

[0030] Further, such as Figure 2 As shown, the outer wall surface of the pushing section 75 is provided with a pushing blade 751 , and the rice is pushed to the water mixing section 74 by the pushing blade 751 .

[0031] Further, such as Figure 2 As shown, the outer wall of the impingement mixing section 74 is provided with oblique ribs 741. The design of the oblique ribs 741 at the impingement mixing section 74 increases the axial propulsion force of the impingement mixing section 74, thereby avoiding the problem of increased resistance after the rice is impinged on water, which leads to unstable flow force.

[0032] Furthermore, the outer wall of the pre-grinding section 73 is provided with several straight ribs 731, with grooves 732 formed between adjacent straight ribs 731. The top surfaces of the straight ribs 731 are parallel to the axis of the pre-grinding section 73, and the straight ribs 731 are integrally connected to the diagonal ribs 741. The straight ribs 731 function to compress and heat the rice, removing bran from the rice surface.

[0033] The straight ribs 731 include first straight ribs 731a and second straight ribs 731c alternately arranged along the axial direction of the pre-grinding section 73. A connecting rib 731b is connected between the first straight rib 731a and the second straight rib 731c. The inner side surface of the first straight rib 731a is provided with a second inclined surface 731e, and the outer side surface of the second straight rib 731c is provided with a first inclined surface 731d.

[0034] Specifically, such as Figure 3As shown, the straight ribs 731 are designed as first straight ribs 731a and second straight ribs 731c, and the inner side of the first straight ribs 731a and the outer side of the second straight ribs 731c are alternately inclined to form second inclined surfaces 731e and first inclined surfaces 731d, so that the rice is alternately pressed by the two inclined surfaces during the rotating pushing process, the pressing effect on the rice is increased, the pressing temperature rising speed of the rice is increased, and the friction effect is increased, so that the efficiency of removing bran is increased. After passing through the pre-milling section 73, the rice forms a white rice shape, and then enters the fine milling section 72 for fine milling processing.

[0035] Further, the outer wall surface of the fine milling section 72 is provided with a polishing block 721. The polishing block 721 has the effect of solidifying the crystal layer on the surface of the rice, and finally forming a gelatinous protective film, achieving the effect of fine polishing.

[0036] Further, the outer wall surface of the tail section 71 is provided with a spiral blade 711, which orderly conveys the rice formed after fine milling to the tail section 71, and blocks the negative pressure in the polishing chamber 3 from acting on the tail section 71.

[0037] As shown, Figure 2 The wrapping tail section 71 is provided with a blowing assembly 6, the blowing assembly 6 includes an air chamber 61, the air chamber 61 is provided with an air inlet nozzle 62, the air inlet nozzle 62 is connected with an air generator 2, the air chamber 61 is provided with a mesh cylinder 64, the mesh cylinder 64 and the air chamber 61 form an air equalizing chamber 63, and the mesh cylinder 64 and the tail section 71 form a clamping chamber 65. The air generator 2 delivers gas from the air inlet nozzle 62 to the air equalizing chamber 63 in the air chamber 61, and the gas enters the clamping chamber 65 through the mesh cylinder 64 and blows on the rice, for the purpose of removing residual water vapor and cooling the rice, and also blowing up the residual bran, under the action of the negative pressure in the polishing chamber 3, the bran and broken rice blown up by the gas blowing and the negative pressure suction under the double action of the gas blowing and the negative pressure suction flow back to the screen 8 through the gap and are sucked away, reducing the residual amount of bran and broken rice in the finished rice.

[0038] The spiral blade 711 is arranged close to the fine milling section 72. The outer edge of the spiral blade 711 and the inner mesh cylinder 642 leave a gap of 2-3 mm. Through the setting of the gap, a channel is provided for the bran blown up to flow back to the screen 8, and the finished rice is also blocked.

[0039] As shown, Figure 4As shown, the net cylinder 64 includes two oppositely arranged flanges 641 fixed with the air chamber 61, and the inner net cylinder 642 is fixed inside the two flanges 641. The outer wall surface of the inner net cylinder 642 is surrounded by the fins 643 fixed with the flanges 641, and the ventilation grooves 644 are formed between adjacent two fins 643. After the gas enters the air equalizing chamber 63, the gas is uniformly blown on the inner net cylinder 642 by the ventilation grooves 644 between the fins 643, so that the gas is uniformly blown into the clamping chamber 65 to act on the rice in the circumferential direction.

[0040] Working principle: the polished rice to be polished enters the polishing chamber 3 from the feeding chamber 5, when the polishing roller 7 rotates at high speed, the rice is pushed to the water-attachment mixing section 74 by the pushing blade 751 to be mixed with the water mist, and then is pushed to the pre-grinding section 73, the rice is alternately extruded by the two inclined surfaces of the outer wall surfaces of the first straight fin 731a and the second straight fin 731c in the straight fin 731 in the rotating pushing process, so that the extrusion effect on the rice is increased, the extrusion heating speed of the rice is increased, and the friction effect is increased to remove bran, after passing through the pre-grinding section 73, the rice enters the fine grinding section 72 to be finely ground by the polishing block 721. Then, the rice is extruded to the clamping chamber 65 outside the tail section 71 by the spiral blade 711, the air generator 2 delivers the gas to the air equalizing chamber 63 in the air chamber 61 through the air inlet 62, the gas enters the clamping chamber 65 through the net cylinder 64 to blow on the rice for cooling, and at the same time, the residual bran and part of the broken rice are blown up, under the action of the negative pressure in the polishing chamber 3, the part of the bran and the broken rice blown up are returned to the sieve 8 through the gap under the double action of the gas blowing and the negative pressure suction, and are sucked away; the polished rice is output from the discharging chamber 4 after the polishing process.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rice processing polishing machine, comprising a machine body (1) and a polishing chamber (3), wherein the polishing chamber (3) is provided on the machine body (1), a feed bin (5) and a discharge bin (4) are provided in the polishing chamber (3), a polishing roller (7) is connected to the polishing chamber (3) so as to rotate along the direction of the feed bin (5) and the discharge bin (4), and a sieve (8) is provided in the polishing chamber (3) and surrounds the outer side of the polishing roller (7), wherein: The polishing roller (7) surface is sequentially provided with a pushing section (75), a water mixing section (74), a pre-grinding section (73), a fine grinding section (72) and a tail section (71) along the direction of the feed bin (5) and the discharge bin (4), a gas blowing assembly (6) is arranged at the tail section (71), the gas blowing assembly (6) comprises a gas chamber (61), an air inlet nozzle (62) is arranged on the gas chamber (61), the air inlet nozzle (62) is connected with an air generator (2), a mesh cylinder (64) is arranged in the gas chamber (61), an air equalizing bin (63) is formed between the mesh cylinder (64) and the gas chamber (61), and a clamping bin (65) is formed between the mesh cylinder (64) and the tail section (71).

2. The polishing machine for rice processing according to claim 1, characterized in that: The mesh cylinder (64) comprises two oppositely arranged flanges (641), the flanges (641) are fixed with the gas chamber (61), and an inner mesh cylinder (642) is fixed inside the two flanges (641).

3. The polishing machine for rice processing according to claim 2, characterized in that: The outer wall surface of the inner mesh cylinder (642) is surrounded by fins (643) fixed with the flanges (641), and a ventilation groove (644) is formed between adjacent two fins (643).

4. The polishing machine for rice processing according to claim 1, characterized in that: The outer wall surface of the tail section (71) is provided with a spiral blade (711), and the spiral blade (711) is arranged close to the fine grinding section (72).

5. The polishing machine for rice processing according to claim 4, characterized in that: The outer edge of the spiral blade (711) and the inner mesh cylinder (642) leave a gap of 2-3mm.

6. The polishing machine for rice processing according to claim 1, characterized in that: The outer wall surface of the fine grinding section (72) is provided with a polishing block (721).

7. The polishing machine for rice processing according to claim 1, characterized in that: The outer wall surface of the pre-grinding section (73) is provided with a plurality of straight ribs (731), and a clamping groove (732) is formed between adjacent two straight ribs (731).

8. The polishing machine for rice processing according to claim 7, characterized in that: The straight rib (731) comprises a first straight rib (731a) and a second straight rib (731c) alternately arranged along the axis direction of the pre-grinding section (73), a connecting rib (731b) is connected between the first straight rib (731a) and the second straight rib (731c), a second inclined surface (731e) is arranged on the inner side surface of the first straight rib (731a), and a first inclined surface (731d) is arranged on the outer side surface of the second straight rib (731c).

9. The polishing machine for rice processing according to claim 1, characterized in that: The outer wall surface of the water mixing section (74) is provided with an inclined rib (741).

10. The polishing machine for rice processing according to claim 1, characterized in that: The outer wall surface of the pushing section (75) is provided with a pushing blade (751).

Images