Double-roller polishing unit

Abstract

The utility model relates to the technical field of rice processing, in particular to a double-roller polishing unit. Comprising a machine box, a feeding box, a heat supply mechanism, two polishing barrels, two sets of polishing mechanisms, a plurality of inclined plates and a plurality of atomization nozzles. A plurality of inclined plates and a plurality of atomizing nozzles are mounted on the inner wall of the feeding box; the two polishing cylinders are arranged on the inner side of the case side by side up and down; the two polishing mechanisms are installed on the two polishing cylinders correspondingly. Each polishing mechanism comprises a hollow rotating shaft, a spiral blade and a power assembly. And the heat supply mechanism is used for providing hot air into the two hollow rotating shafts. Rice can be fully mixed with sprayed water mist, the heating uniformity of the rice can be improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a double-roller polishing unit. Background Art

[0002] In order to ensure the appearance quality of rice and prevent it from mildewing and deteriorating during storage, surface polishing of rice is also required during the rice processing process, so that a gelatinized layer is formed on the surface to improve the storage performance and commercial value of rice. The existing rice polishing machines are usually of single-roller design, and during the rice polishing process, it is necessary to wet and heat the rice in the same roller.

[0003] The patent with the publication number CN218189790U discloses a double-roller rice polishing machine, which includes a polishing cabinet and a polishing mechanism; polishing cabinet: a feed hopper is arranged in the opening on the left side of its upper surface, a discharge hopper is arranged at the discharge port at the lower end of the left side of the polishing cabinet, and symmetrically arranged polishing cylinders are arranged inside the polishing cabinet. The feeding port at the bottom end of the feed hopper is communicated with the feeding port at the left end of the outer arc surface of the upper polishing cylinder, the discharge port at the left end of the lower polishing cylinder is connected with the discharge port at the lower end of the left side of the polishing cabinet, and the transfer ports at the right ends of the outer arc surfaces of the two polishing cylinders are communicated through a diversion cover; polishing mechanism: arranged inside the polishing cabinet.

[0004] The following technical defects still exist in the above-mentioned disclosed patent: 1. When spraying rice, since the atomizing nozzle is buried inside the rice, the atomized water cannot be fully mixed with the rice; 2. By setting an electric heating wire to heat the hollow roller shaft, the heating area of the rice is limited, and rapid heating of the rice cannot be achieved. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a double-roller polishing unit for the problems existing in the background art.

[0006] The technical solution of the utility model, a double-roller polishing unit, includes:

[0007] A feed box, a plurality of inclined plates and a plurality of atomizing nozzles. The upper end of the feed box is open, and the plurality of inclined plates and the plurality of atomizing nozzles are all installed on the inner wall of the feed box;

[0008] A machine case and two polishing cylinders. The two polishing cylinders are arranged side by side up and down inside the machine case. A discharge pipe c is communicated between the upper polishing cylinder and the feed box, a discharge pipe a is communicated between the upper polishing cylinder and the lower polishing cylinder, and a discharge pipe b is communicated with the bottom end of the lower polishing cylinder;

[0009] Two sets of polishing mechanisms are respectively installed on two polishing cylinders. The polishing mechanism includes a hollow rotating shaft, a spiral blade and a power component. The main body of the hollow rotating shaft is rotatably installed inside the polishing cylinder, and one end thereof extends out of the outer side of the machine box movably. The spiral blade is installed on the hollow rotating shaft. The spiral blade is of a hollow structure and is communicated with the inner side of the hollow rotating shaft. The power component is installed on the feed box and is used to drive the hollow rotating shaft to rotate;

[0010] A heat supply mechanism is used to supply hot air into the interiors of the two hollow rotating shafts.

[0011] Preferably, stirring mechanisms are installed on both sets of polishing mechanisms. The stirring mechanism includes a fixed shaft and multiple sets of stirring parts. The fixed shaft is arranged inside the hollow rotating shaft and is fixedly connected to the inner wall of the machine box. The stirring part includes a stirring blade, a transmission shaft, a bevel gear a and a bevel gear b. The transmission shaft is rotatably installed on the hollow rotating shaft. The stirring blade is installed at the outer end of the transmission shaft. The bevel gear a is installed at the inner end of the transmission shaft. The bevel gear b is installed on the fixed shaft. The bevel gear a is meshed with the bevel gear b.

[0012] Preferably, the heat supply mechanism includes a heating box, two rotary joints and two connecting pipes a. Among them, the heating box is installed on the machine box. A heating device is installed inside the heating box. The two rotary joints are respectively installed at the outer ends of the two hollow rotating shafts. The heating box is connected to the two rotary joints through the connecting pipes a respectively.

[0013] Preferably, the polishing cylinder includes an outer cylinder body and an inner polishing cylinder body. The inner polishing cylinder body is located inside the outer cylinder body. A heating cavity is formed between the outer cylinder body and the inner polishing cylinder body. The two heating cavities are both connected to the heating box through connecting pipes b.

[0014] Preferably, the power component includes a motor, a gear and a toothed ring. Among them, the motor is installed on the machine box. The gear is installed on the output shaft of the motor. The toothed ring is installed on the hollow rotating shaft and is meshed with the gear.

[0015] Preferably, the bottom end of the inner cavity of the feed box is of a funnel-shaped structure.

[0016] Preferably, multiple inclined plates are arranged side by side on the left inner wall and the right inner wall of the feed box. The inclined plates are gradually inclined from the side adjacent to the inner wall towards the bottom end. The multiple inclined plates on both sides are arranged alternately and at intervals.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] 1. By arranging multiple inclined plates, the passing time of the rice can be prolonged, and the rice can be turned over to improve the mixing effect of the rice and the atomized water, so as to prevent the rice from being scorched due to friction and high temperature during the subsequent polishing process.

[0019] 2. The hot air generated inside the heating box enters the inside of the hollow rotating shaft and the spiral blades through the connecting pipe a, so as to heat the hollow rotating shaft and the spiral blades, thereby increasing the heating area of the rice and improving the heating efficiency of the rice. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model.

[0021] Figure 2 It is a sectional structural diagram of the present utility model.

[0022] Figure 3 It is Figure 2 a partially enlarged structural schematic diagram of the A position of

[0023] Reference numerals: 1, chassis; 2, feed box; 3, inclined plate; 4, atomizing nozzle; 5, heating box; 6, hollow rotating shaft; 7, spiral blade; 81, outer cylinder; 82, inner polished cylinder; 9, stirring blade; 10, transmission shaft; 111, bevel gear a; 112, bevel gear b; 12, fixed shaft; 13, discharge pipe a; 14, rotary joint; 15, discharge pipe b; 16, discharge pipe c; 17, toothed ring; 181, connecting pipe a; 182, connecting pipe b; 19, motor; 20, gear. Detailed Description of the Embodiments

[0024] Embodiment 1

[0025] As Figure 1 and Figure 2 shown, a double-roller polishing unit proposed in this embodiment includes a chassis 1, a feed box 2, a heating mechanism, two polishing cylinders, two groups of polishing mechanisms, a plurality of inclined plates 3 and a plurality of atomizing nozzles 4.

[0026] The upper end of the feed box 2 is open, and the bottom end of the inner cavity of the feed box 2 is of a funnel-shaped structure. This setting can prevent rice from accumulating at the bottom end inside the feed box 2. A plurality of inclined plates 3 and a plurality of atomizing nozzles 4 are both installed on the inner wall of the feed box 2. The inclined plates 3 on the left side and the right side of the inner wall of the feed box 2 are arranged in parallel in a plurality. The inclined plates 3 gradually incline from the side adjacent to the inner wall towards the bottom end, and the plurality of inclined plates 3 on both sides are arranged in an alternating and spaced manner. This setting can extend the passing time of the rice inside the feed box 2 and can fully stir the rice.

[0027] Two polishing cylinders are arranged side by side vertically inside the machine case 1. A discharge pipe c16 is connected between the upper polishing cylinder and the feed box 2. A discharge pipe a13 is connected between the upper polishing cylinder and the lower polishing cylinder. The bottom end of the lower polishing cylinder is connected with a discharge pipe b15. The polishing cylinder includes an outer cylinder body 81 and an inner polishing cylinder body 82. The inner polishing cylinder body 82 is located inside the outer cylinder body 81. A heating cavity is formed between the outer cylinder body 81 and the inner polishing cylinder body 82. Both heating cavities are connected with a communicating pipe b182 to the heating box 5. The hot air generated inside the heating box 5 enters the heating cavity through the communicating pipe b182, so as to realize the heating work of the inner wall of the polishing cylinder and increase the heating area of the rice.

[0028] Two groups of polishing mechanisms are respectively installed on the two polishing cylinders. The polishing mechanism includes a hollow rotating shaft 6, a spiral blade 7 and a power assembly. The main body of the hollow rotating shaft 6 is rotatably installed inside the polishing cylinder, and one end thereof extends out of the machine case 1 movably. The spiral blade 7 is installed on the hollow rotating shaft 6. The spiral blade 7 is of a hollow structure and is communicated with the inside of the hollow rotating shaft 6. The power assembly is installed on the feed box 2 and is used to drive the hollow rotating shaft 6 to rotate. The power assembly includes a motor 19, a gear 20 and a toothed ring 17. Among them, the motor 19 is installed on the machine case 1, the gear 20 is installed on the output shaft of the motor 19, the toothed ring 17 is installed on the hollow rotating shaft 6 and is meshed with the gear 20. The motor 19 is started to drive the gear 20 to rotate, and the gear 20 drives the toothed ring 17 to rotate, thereby realizing the driving of the hollow rotating shaft 6.

[0029] The heat supply mechanism is used to supply hot air to the inside of the two hollow rotating shafts 6. The heat supply mechanism includes a heating box 5, two rotary joints 14 and two communicating pipes a181. Among them, the heating box 5 is installed on the machine case 1, a heating device is installed inside the heating box 5, the two rotary joints 14 are respectively installed at the outer ends of the two hollow rotating shafts 6, and the heating box 5 is connected with the two rotary joints 14 through the communicating pipes a181 respectively.

[0030] Put the rice into the inner side of the feeding box 2, supply water to the multiple atomizing nozzles 4, mix the atomized water sprayed by the atomizing nozzles 4 with the rice, and the rice flows along the multiple inclined plates 3 into the inner bottom end of the feeding box 2. By arranging the multiple inclined plates 3, the passing time of the rice can be prolonged, and the rice can be turned over to improve the mixing effect of the rice and the atomized water, so as to avoid the appearance of char marks on the rice due to friction and high temperature during the subsequent polishing process. Then the rice falls into the upper polishing cylinder, and the power assembly is used to drive the hollow rotating shaft 6 to rotate, and then drive the spiral blade 7 to rotate. The rotation of the spiral blade 7 can convey the rice to the other end of the polishing cylinder, and during the process of conveying the rice, the rice fully rubs against the inner wall of the polishing cylinder to realize the polishing work of the rice. During this process, the hot air generated inside the heating box 5 enters the inside of the hollow rotating shaft 6 and the spiral blade 7 through the connecting pipe a181, so as to increase the heating area of the rice and improve the heating effect on the rice. Under the action of pressure and temperature, the glazing work of the rice is realized. Then the rice flows into the lower polishing cylinder through the discharge pipe a13, and the polishing and heating work is continuously carried out, and finally it is discharged through the rice discharge pipe b15.

[0031] Embodiment 2

[0032] As Figure 3 shown, a double-roll polishing machine set proposed in this embodiment, compared with Embodiment 1, in this embodiment, stirring mechanisms are installed on both groups of polishing mechanisms. The stirring mechanism includes a fixed shaft 12 and multiple groups of stirring parts. The fixed shaft 12 is arranged inside the hollow rotating shaft 6 and fixedly connected to the inner wall of the machine box 1. The stirring part includes a stirring blade 9, a transmission shaft 10, a bevel gear a111 and a bevel gear b112. The transmission shaft 10 is rotatably installed on the hollow rotating shaft 6, the stirring blade 9 is installed at the outer end of the transmission shaft 10, the bevel gear a111 is installed at the inner end of the transmission shaft 10, the bevel gear b112 is installed on the fixed shaft 12, and the bevel gear a111 is meshed with the bevel gear b112; during the process of driving the hollow rotating shaft 6 to rotate, the transmission shaft 10 is driven to rotate around the hollow rotating shaft 6, and the bevel gear a111 rolls on the bevel gear b112, causing the transmission shaft 10 to rotate self, and then driving the stirring blade 9 to rotate, so as to realize the stirring work of the rice during the feeding process and make the rice heat evenly.

[0033] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to this. Within the scope of knowledge possessed by those skilled in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. A double-roller polishing unit, characterized in that: include: A feed box (2), a plurality of inclined plates (3) and a plurality of atomizing nozzles (4), wherein the upper end of the feed box (2) is open, and the plurality of inclined plates (3) and the plurality of atomizing nozzles (4) are all mounted on the inner wall of the feed box (2); A machine case (1) and two polishing cylinders, the two polishing cylinders are arranged side by side up and down on the inner side of the machine case (1), a discharge pipe c (16) is arranged between the upper polishing cylinder and the feed box (2), a discharge pipe a (13) is arranged between the upper polishing cylinder and the lower polishing cylinder, and a discharge pipe b (15) is arranged at the bottom end of the lower polishing cylinder; Two sets of polishing mechanisms are respectively mounted on two polishing cylinders. The polishing mechanisms include a hollow rotating shaft (6), a spiral blade (7) and a power assembly. The main body of the hollow rotating shaft (6) is rotatably mounted on the inner side of the polishing cylinder and one end of the hollow rotating shaft (6) is movably extended to the outer side of the chassis (1). The spiral blade (7) is mounted on the hollow rotating shaft (6). The spiral blade (7) is a hollow structure and is connected to the inner side of the hollow rotating shaft (6). The power assembly is mounted on the feed box (2) and is used to drive the hollow rotating shaft (6) to rotate. A heating mechanism is used to provide hot air to the interior of the two hollow rotating shafts (6).

2. A double-roll polishing machine set according to claim 1, characterized in that: The two polishing mechanisms are both equipped with a stirring mechanism, which comprises a fixed shaft (12) and a plurality of stirring members. The fixed shaft (12) is arranged on the inner side of the hollow rotating shaft (6) and is fixedly connected to the inner wall of the chassis (1). The stirring members comprise stirring blades (9), a transmission shaft (10), a bevel gear a (111) and a bevel gear b (112). The transmission shaft (10) is rotatably mounted on the hollow rotating shaft (6), the stirring blades (9) are mounted on the outer end of the transmission shaft (10), the bevel gear a (111) is mounted on the inner end of the transmission shaft (10), and the bevel gear b (112) is mounted on the fixed shaft (12). The bevel gear a (111) is meshedly connected with the bevel gear b (112).

3. A double-roll polishing machine set according to claim 1, characterized in that: The heating mechanism comprises a heating box (5), two rotating joints (14) and two connecting pipes a (181), wherein the heating box (5) is mounted on the machine box (1), a heating device is mounted on the inner side of the heating box (5), the two rotating joints (14) are respectively mounted on the outer ends of two hollow rotating shafts (6), and the heating box (5) and the two rotating joints (14) are connected via connecting pipes a (181).

4. A double-roll polishing machine set according to claim 3, characterized in that: The polishing cylinder comprises an outer cylinder (81) and an inner polishing cylinder (82), wherein the inner polishing cylinder (82) is located inside the outer cylinder (81), a heating chamber is formed between the outer cylinder (81) and the inner polishing cylinder (82), and a connecting pipe b (182) is connected between the two heating chambers and the heating box (5).

5. A double-roll polishing machine set according to claim 1, characterized in that: The power assembly comprises a motor (19), a gear (20) and a gear ring (17), wherein the motor (19) is mounted on the chassis (1), the gear (20) is mounted on the output shaft of the motor (19), and the gear ring (17) is mounted on the hollow rotating shaft (6) and meshedly connected with the gear (20).

6. A double-roll polishing machine set according to claim 1, characterized in that: The bottom end of the inner cavity of the feed box (2) is a funnel-shaped structure.

7. A double-roll polishing machine set according to claim 1, characterized in that: A plurality of inclined plates (3) are arranged side by side on the left side and the right side of the inner wall of the feed box (2), and the inclined plates (3) are gradually inclined from one side adjacent to the inner wall to the bottom end, and the plurality of inclined plates (3) on both sides are arranged in an interlaced manner and spaced apart from each other.

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