Flour mill for rice processing

Abstract

The utility model belongs to the technical field of rice processing, and particularly relates to a flour mill for rice processing, which comprises a milling box for milling rice, the top of the milling box is fixedly connected with a feed hopper, the bottom end of the feed hopper is fixedly communicated with a feed pipe for feeding rice, the feed pipe is provided with a pre-crushing mechanism, and the pre-crushing mechanism is provided with a crushing mechanism. A lower grinding disc is fixedly connected into the grinding box, a grinding mechanism is arranged between the lower grinding disc and the feeding pipe, a removing and scraping mechanism is arranged at the bottom of the lower grinding disc, and a screening mechanism is arranged in the grinding box. The rice flour grinding machine is reasonable in structural design, rice can be pre-ground firstly, obtained rice particles are smaller, the later grinding effect and efficiency are greatly improved, the upper grinding disc and the lower grinding disc are transversely arranged, the grinding effect is better, rice flour can be screened after being ground, the rice flour particles are smaller, finer and more uniform, and the rice flour grinding efficiency is improved. And the grinding effect is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a rice milling machine for rice processing. Background Technique

[0002] The rice milling machine is mainly used to process rice into powder, mainly for making rice noodles, etc. Since more and more people are eating food such as rice noodles now, the uses of rice powder are becoming more and more extensive.

[0003] After retrieval: A rice milling machine for rice processing with the authorization announcement number of CN210357356U, including a feed hopper, a grinding box, a housing, a base, and a feed pipe. It is characterized in that: the feed hopper is arranged above the feed pipe, a connecting block is arranged on the feed pipe, a baffle is arranged inside the connecting block, a tensioning bolt is arranged above the baffle, the housing is arranged on one side of the feed pipe, the grinding box is arranged on the other side of the feed pipe, a support beam is arranged below the feed pipe, a bracket is arranged inside the housing, a motor is arranged inside the bracket, the bracket is connected to the motor by bolts, and the base is arranged below the housing.

[0004] However, the above-mentioned rice milling machine for rice processing still has deficiencies. It does not pre-crush the rice first, resulting in larger rice particles and reducing the later milling effect and efficiency. Moreover, the grinding disc is arranged vertically, and it is easy to have the situation of falling before the rice is completely milled, reducing the milling effect. In addition, there is no screening after milling, making the particle sizes of the rice powder uneven and reducing the milling effect. Therefore, we propose a rice milling machine for rice processing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned drawbacks and propose a rice milling machine for rice processing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A rice milling machine for rice processing, including a milling box for rice milling. The top of the milling box is fixedly connected with a feed hopper. The bottom end of the feed hopper is fixedly communicated with a feed pipe for rice feeding. A pre-crushing mechanism is arranged on the feed pipe. A lower grinding disc is fixedly connected inside the milling box. A milling mechanism is arranged between the lower grinding disc and the feed pipe. A cleaning and scraping mechanism is arranged at the bottom of the lower grinding disc. A screening mechanism is arranged inside the milling box.

[0008] Specifically, the powder grinding mechanism includes a bidirectional motor fixedly connected to one side of the feed pipe and an upper grinding disc rotatably sleeved outside the feed pipe. A connecting ring is fixedly connected to the top of the upper grinding disc, and a toothed ring is fixedly connected to the inner side of the connecting ring. A driving gear is fixedly connected to the bottom output shaft of the bidirectional motor, and the driving gear meshes with the toothed ring. The upper grinding disc cooperates with the lower grinding disc.

[0009] Specifically, a bearing is fixedly sleeved inside the upper grinding disc, and the inner ring of the bearing is fixedly sleeved outside the feed pipe.

[0010] Specifically, fixing rods are fixedly connected to the outer periphery of the lower grinding disc, and the four fixing rods are respectively fixedly connected to the inner periphery of the powder grinding box.

[0011] Specifically, the pre-crushing mechanism includes a driving bevel gear fixedly connected to the top output shaft of the bidirectional motor and a rotating shaft rotatably connected to the inner walls of both sides of the feed pipe. A driven bevel gear is fixedly connected to one end of the rotating shaft, and the driving bevel gear meshes with the driven bevel gear. Crushing knives are fixedly connected to the outside of the rotating shaft.

[0012] Specifically, the crushing knives are all located inside the feed pipe.

[0013] Specifically, the screening mechanism includes a sieve mesh fixedly connected inside the powder grinding box and a cylinder fixedly connected to one side of the powder grinding box. A connecting plate is fixedly connected to the output shaft of the cylinder, and a baffle is fixedly connected to one side of the connecting plate. Two collecting hoppers are fixedly connected to the bottom inner wall of the powder grinding box. The baffle abuts against the top of the left collecting hopper, and the sieve mesh is fixedly communicated with the top of the right collecting hopper. The bottom ends of the two collecting hoppers are fixedly communicated with discharge pipes, and the bottom ends of the two discharge pipes both extend below the powder grinding box.

[0014] Specifically, an opening is formed in one side of the powder grinding box, and the baffle is slidably sleeved inside the opening.

[0015] Specifically, the cleaning and scraping mechanism includes a servo motor fixedly connected to the bottom of the lower grinding disc. A driving shaft is fixedly connected to the output shaft of the servo motor, and a cleaning brush is fixedly connected to the bottom end of the driving shaft. The cleaning brush is movably abutted against the tops of the sieve mesh and the baffle.

[0016] Specifically, a rotating plate is fixedly connected to the bottom end of the driving shaft, and the cleaning brush is fixedly connected to the bottom of the rotating plate.

[0017] In this utility model, for the rice milling machine, the top output shaft of the bidirectional motor drives the rotation of the driving bevel gear. The driving bevel gear drives the rotation of the driven bevel gear and the rotating shaft. The rotating shaft drives the rotation of the crushing knife, thereby pre-crushing the rice, making the rice grains smaller, greatly improving the effect and efficiency of subsequent milling. The crushed rice grains fall from the feed pipe to the top of the lower grinding disc. The bottom output shaft of the bidirectional motor drives the rotation of the driving gear. The driving gear drives the rotation of the toothed ring, the connecting ring and the upper grinding disc. With the assistance of the lower grinding disc, rice milling operation can be carried out on the rice. Since the upper and lower grinding discs are horizontally arranged, the milling effect is better.

[0018] In this utility model, for the rice milling machine, the milled rice flour falls from the edge of the lower grinding disc to the top of the baffle and the sieve. At the same time, the servo motor drives the rotation of the drive shaft, the rotating plate and the cleaning brush. Under the scraping of the cleaning brush, the rice flour on the baffle and the sieve can be scraped. The smaller and finer rice flour particles pass through the sieve and flow out through the corresponding collecting hopper and the discharge pipe, thereby achieving the effect of screening the rice flour, making the rice flour particles smaller, finer and more uniform, greatly improving the milling effect. And the larger particles stay on the top of the sieve and the baffle. When the milling is finished, the cylinder can be started. The cylinder drives the connecting plate and the baffle to move leftward without blocking the collecting hopper on the left. At this time, under the scraping of the cleaning brush, the larger rice flour particles can be scraped into the left collecting hopper and the discharge pipe for discharging.

[0019] The structure of this utility model is reasonably designed. It can pre-crush the rice first to make the rice grains smaller, greatly improving the effect and efficiency of subsequent milling. And the upper and lower grinding discs are horizontally arranged, making the milling effect better. Moreover, after milling, it is beneficial to screen the rice flour, making the rice flour particles smaller, finer and more uniform, greatly improving the milling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a rice milling machine proposed by this utility model;

[0021] Figure 2 is a first perspective three-dimensional view of the feed pipe, the upper grinding disc, the lower grinding disc and the cleaning brush of a rice milling machine proposed by this utility model;

[0022] Figure 3 is a second perspective three-dimensional view of the feed pipe, the upper grinding disc, the lower grinding disc and the cleaning brush of a rice milling machine proposed by this utility model;

[0023] Figure 4 is a cross-sectional view of a rice milling machine proposed by this utility model;

[0024] Figure 5 isFigure 4 Schematic structural diagram of part A

[0025] In the figure: 1, flour grinding box; 2, feed hopper; 3, discharge pipe; 4, feed pipe; 5, upper grinding disc; 6, connecting ring; 7, bidirectional motor; 8, fixed rod; 9, lower grinding disc; 10, servo motor; 11, drive shaft; 12, rotating plate; 13, cleaning brush; 14, toothed ring; 15, driving gear; 16, driving bevel gear; 17, driven bevel gear; 18, rotating shaft; 19, bearing; 20, baffle; 21, sieve; 22, aggregate hopper; 23, crushing knife; 24, cylinder; 25, connecting plate. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Refer to Figures 1-5 , a flour mill for rice processing, including a flour grinding box 1 used for rice flour grinding, a feed hopper 2 is fixedly connected to the top of the flour grinding box 1, the bottom end of the feed hopper 2 is fixedly communicated with a feed pipe 4 used for rice feeding, a pre-crushing mechanism is arranged on the feed pipe 4, a lower grinding disc 9 is fixedly connected inside the flour grinding box 1, a flour grinding mechanism is arranged between the lower grinding disc 9 and the feed pipe 4, a cleaning and scraping mechanism is arranged at the bottom of the lower grinding disc 9, and a screening mechanism is arranged inside the flour grinding box 1.

[0028] Furthermore, the flour grinding mechanism includes a bidirectional motor 7 fixedly connected to one side of the feed pipe 4 and an upper grinding disc 5 rotatably sleeved outside the feed pipe 4. A connecting ring 6 is fixedly connected to the top of the upper grinding disc 5, a toothed ring 14 is fixedly connected to the inner side of the connecting ring 6, a driving gear 15 is fixedly connected to the bottom output shaft of the bidirectional motor 7, the driving gear 15 meshes with the toothed ring 14, the upper grinding disc 5 cooperates with the lower grinding disc 9, the rotation of the driving gear 15 is driven by the bottom output shaft of the bidirectional motor 7, the driving gear 15 drives the rotation of the toothed ring 14, the connecting ring 6 and the upper grinding disc 5. With the assistance of the lower grinding disc 9, rice can be ground. Since the upper and lower grinding discs are horizontally arranged (because in reality, flour and noodle grinding are horizontally arranged), the grinding effect is better.

[0029] Furthermore, a bearing 19 is fixedly sleeved inside the upper grinding disc 5, and the inner ring of the bearing 19 is fixedly sleeved outside the feed pipe 4, which is conducive to rotatably connecting the upper grinding disc 5 outside the feed pipe 4.

[0030] Furthermore, fixed rods 8 are fixedly connected to the outer periphery of the lower grinding disc 9, and the four fixed rods 8 are respectively fixedly connected to the inner periphery of the flour grinding box 1, which is conducive to fixing the lower grinding disc 9 and does not prevent the falling of rice flour.

[0031] Furthermore, the pre-crushing mechanism includes a driving bevel gear 16 fixedly connected to the top output shaft of the bidirectional motor 7 and a rotating shaft 18 rotatably connected to the inner walls on both sides of the feeding pipe 4. One end of the rotating shaft 18 is fixedly connected with a driven bevel gear 17, and the driving bevel gear 16 meshes with the driven bevel gear 17. The outer side of the rotating shaft 18 is fixedly connected with crushing knives 23, and the crushing knives 23 are all located inside the feeding pipe 4. Pour the rice into the feeding hopper 2, drive the rotation of the driving bevel gear 16 through the top output shaft of the bidirectional motor 7, the driving bevel gear 16 drives the rotation of the driven bevel gear 17 and the rotating shaft 18, and the rotating shaft 18 drives the rotation of the crushing knives 23, so as to pre-crush the rice, make the rice grains smaller, and greatly improve the effect and efficiency of later flour grinding.

[0032] Furthermore, the screening mechanism includes a screen 21 fixedly connected inside the flour grinding box 1 and a cylinder 24 fixedly connected to one side of the flour grinding box 1. A connecting plate 25 is fixedly connected to the output shaft of the cylinder 24, a baffle 20 is fixedly connected to one side of the connecting plate 25, two collecting hoppers 22 are fixedly connected to the bottom inner wall of the flour grinding box 1, the baffle 20 abuts against the top of the left collecting hopper 22, the screen 21 is fixedly communicated with the top of the right collecting hopper 22, the bottom ends of the two collecting hoppers 22 are both fixedly communicated with a discharge pipe 3, the bottom ends of the two discharge pipes 3 both extend below the flour grinding box 1, and an opening is formed in one side of the flour grinding box 1, and the baffle 20 is slidably sleeved in the opening.

[0033] Furthermore, the cleaning and scraping mechanism includes a servo motor 10 fixedly connected to the bottom of the lower grinding disc 9. A driving shaft 11 is fixedly connected to the output shaft of the servo motor 10. A cleaning brush 13 is fixedly connected to the bottom end of the driving shaft 11. The cleaning brush 13 is movably abutted against the tops of the screen 21 and the baffle 20. A rotating plate 12 is fixedly connected to the bottom end of the driving shaft 11, and the cleaning brush 13 is fixedly connected to the bottom of the rotating plate 12. The ground rice flour falls from the edge of the lower grinding disc 9 onto the tops of the baffle 20 and the screen 21. At the same time, drive the rotation of the driving shaft 11, the rotating plate 12 and the cleaning brush 13 through the servo motor 10. Under the scraping of the cleaning brush 13, the rice flour on the baffle 20 and the screen 21 can be scraped. The finer and smaller rice flour particles pass through the screen 21 and flow into the corresponding collecting hopper 22, and finally are discharged from the corresponding discharge pipe 3, so as to achieve the effect of screening the rice flour, make the rice flour particles smaller, finer and more uniform, and greatly improve the effect of flour grinding. The larger particles stay on the tops of the screen 21 and the baffle 20. When the flour grinding is finished, the cylinder 24 can be started. The cylinder 24 drives the connecting plate 25 and the baffle 20 to move leftward without blocking the left collecting hopper 22. At this time, under the scraping of the cleaning brush 13, the larger rice flour particles can be scraped into the left collecting hopper 22 and the discharge pipe 3 for discharge.

[0034] In the present utility model, during use, rice is poured into the feed hopper 2. The rotation of the driving bevel gear 16 is driven by the top output shaft of the bidirectional motor 7. The rotation of the driven bevel gear 17 and the rotating shaft 18 is driven by the driving bevel gear 16. The rotation of the rotating shaft 18 drives the rotation of the crushing knife 23, thereby pre-crushing the rice, making the rice grains smaller, greatly improving the effect and efficiency of subsequent flour grinding. The crushed rice grains fall from the feed pipe 4 to the top of the lower grinding plate 9. The rotation of the driving gear 15 is driven by the bottom output shaft of the bidirectional motor 7. The rotation of the driving gear 15 drives the rotation of the gear ring 14, the connecting ring 6 and the upper grinding plate 5. With the assistance of the lower grinding plate 9, the rice can be ground. Since the upper and lower grinding plates are horizontally arranged (because in reality, flour grinding and wheat grinding are horizontally arranged), the grinding effect is better. The ground rice flour falls from the edge of the lower grinding plate 9 to the top of the baffle 20 and the screen 21. At the same time, the rotation of the drive shaft 11, the rotating plate 12 and the cleaning brush 13 is driven by the servo motor 10. Under the scraping of the cleaning brush 13, the rice flour on the baffle 20 and the screen 21 can be scraped. The smaller and finer rice flour particles pass through the screen 21 and flow into the corresponding collecting hopper 22, and finally are discharged from the corresponding discharge pipe 3, thereby achieving the effect of screening the rice flour, making the rice flour particles smaller, finer and more uniform, greatly improving the grinding effect. The larger particles stay on the top of the screen 21 and the baffle 20. When the grinding is finished, the cylinder 24 can be started. The cylinder 24 drives the connecting plate 25 and the baffle 20 to move to the left without blocking the collecting hopper 22 on the left. At this time, under the scraping of the cleaning brush 13, the larger rice flour particles can be scraped into the left collecting hopper 22 and the discharge pipe 3 for discharge.

Claims

1. A rice mill, characterized in that: The invention comprises a grinding box (1) for grinding rice, wherein the top of the grinding box (1) is fixedly connected to a feed hopper (2), the bottom end of the feed hopper (2) is fixedly connected to a feed pipe (4) for feeding rice, the feed pipe (4) is provided with a pre-crushing mechanism, a lower grinding disc (9) is fixedly connected inside the grinding box (1), a grinding mechanism is provided between the lower grinding disc (9) and the feed pipe (4), a cleaning and scraping mechanism is provided at the bottom of the lower grinding disc (9), and a screening mechanism is provided inside the grinding box (1).

2. A rice processing mill according to claim 1, characterized in that, The grinding mechanism comprises a bidirectional motor (7) fixedly connected to one side of a feed pipe (4) and an upper grinding disc (5) rotatably sleeved on the outside of the feed pipe (4); a connecting ring (6) is fixedly connected to the top of the upper grinding disc (5); a gear ring (14) is fixedly connected to the inner side of the connecting ring (6); a driving tooth (15) is fixedly connected to the output shaft at the bottom end of the bidirectional motor (7); the driving tooth (15) is meshed with the gear ring (14); and the upper grinding disc (5) cooperates with the lower grinding disc (9).

3. A rice processing mill according to claim 2, characterized in that, A bearing (19) is fixedly sleeved inside the upper grinding disc (5), and an inner ring of the bearing (19) is fixedly sleeved outside the feed pipe (4).

4. A rice processing mill according to claim 1, characterized in that, The outer sides of the lower grinding disc (9) are fixedly connected with fixing rods (8), and the four fixing rods (8) are respectively fixedly connected to the inner sides of the grinding box (1).

5. A rice processing mill according to claim 2, characterized in that, The pre-crushing mechanism comprises a driving bevel gear (16) fixedly connected to the output shaft at the top end of the bidirectional motor (7) and a rotating shaft (18) rotatably connected to the inner walls of both sides of the feed pipe (4); one end of the rotating shaft (18) is fixedly connected to a driven bevel gear (17); the driving bevel gear (16) is meshed with the driven bevel gear (17); and a crushing knife (23) is fixedly connected to the outer side of the rotating shaft (18).

6. A rice processing mill according to claim 5, characterized in that: The crushing knives (23) are all located in the feed pipe (4).

7. A rice processing mill according to claim 1, characterized in that: The screening mechanism comprises a screen (21) fixedly connected to the inside of the grinding box (1) and a cylinder (24) fixedly connected to one side of the grinding box (1); a connecting plate (25) is fixedly connected to the output shaft of the cylinder (24); a baffle (20) is fixedly connected to one side of the connecting plate (25); two collecting hoppers (22) are fixedly connected to the inner wall of the bottom of the grinding box (1); the baffle (20) abuts against the top of the collecting hopper (22) on the left; the screen (21) is fixedly connected to the top of the collecting hopper (22) on the right; the bottom ends of the two collecting hoppers (22) are fixedly connected to a discharge pipe (3); the bottom ends of the two discharge pipes (3) extend to the bottom of the grinding box (1).

8. A rice processing mill according to claim 7, characterized in that: An opening is provided on one side of the grinding box (1), and the baffle (20) is slidably sleeved in the opening.

9. A rice processing mill according to claim 7, characterized in that: The cleaning and scraping mechanism comprises a servo motor (10) fixedly connected to the bottom of the lower grinding disc (9); a driving shaft (11) is fixedly connected to the output shaft of the servo motor (10); a cleaning brush (13) is fixedly connected to the bottom end of the driving shaft (11); and the cleaning brush (13) is movably abutted against the top of the screen (21) and the baffle (20).

10. A rice mill according to claim 9, characterized in that: The bottom end of the driving shaft (11) is fixedly connected to a rotating plate (12), and the cleaning brush (13) is fixedly connected to the bottom of the rotating plate (12).

Images