Rice fine pulverizer

Abstract

The utility model relates to the technical field of grain processing, and concretely relates to a rice fine pulverizer including a rack, a driving machine and a pulverizing cavity for pulverizing, a double-stage pulverizing assembly is arranged in the pulverizing cavity, including a primary rotary pulverizing group and a secondary fixed tooth disc group, a screening mechanism is arranged in the pulverizing cavity and adopts an adjustable vibrating screen, including an outer screen ring and an inner screen ring, the inner screen ring is fixedly connected to the inner wall of the pulverizing cavity, the outer screen ring is rotatably connected to the inner wall of the pulverizing cavity, and the outer screen ring is sleeved on the outer wall of the inner screen ring.

Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, specifically a rice fine pulverizer. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finishing.

[0003] Fine grinding of rice is a crucial step in food processing. Most grinders use a single-stage hammer or blade grinding structure, which has the following drawbacks: uneven particle size: coarse particles and excessively fine powder are easily mixed, affecting the quality of the finished product; inconvenient screen adjustment: traditional screens are fixed, requiring the machine to be stopped to replace screens with different apertures, resulting in low efficiency and increased labor costs; easy clogging and difficult maintenance. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a rice fine pulverizer.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a rice fine pulverizer, including a frame, a drive motor and a pulverizing chamber for pulverizing;

[0006] The grinding chamber is equipped with a two-stage grinding assembly, including a primary rotating grinding group and a secondary fixed toothed disc group;

[0007] The crushing chamber is equipped with a screening mechanism using an adjustable vibrating screen, which includes an outer screen ring and an inner screen ring. The inner screen ring is fixedly connected to the inner wall of the crushing chamber, and the outer screen ring is rotatably connected to the inner wall of the crushing chamber, with the outer screen ring sleeved on the outer wall of the inner screen ring.

[0008] Preferably, the outer screen ring sidewall is fixedly connected with an adjusting member for rotating and adjusting the position of the outer screen ring, and the crushing chamber sidewall is provided with a sliding groove adapted to the adjusting member, the adjusting member passing through the sliding groove.

[0009] Preferably, a side door is hinged to one side of the crushing chamber, and a hole for rice to enter is opened in the middle of the side door, and an inclined hopper is integrally formed on the outer wall of the side door.

[0010] Preferably, the primary rotating crushing unit is fixedly connected to the side wall of the rotating plate, the secondary fixed toothed disc unit is fixedly connected to the side wall of the fixed plate, and the fixed plate is fixedly embedded inside the side door.

[0011] Preferably, a feed hopper is integrally formed above the inclined hopper, and a control valve for controlling the feeding speed of rice is provided on one side of the feed hopper.

[0012] Preferably, a connecting block is fixedly connected to the outer wall of the rotating plate, and a scraper is fixedly connected to the outside of the connecting block;

[0013] The scraper is made of soft rubber and contacts the inner wall of the inner screen ring.

[0014] Preferably, a bolt for connecting to a side door is rotatably provided on one side of the crushing chamber, and the non-hinged end of the crushing chamber is connected to the side door by a bolt and a fixing nut.

[0015] Preferably, one side of the rotating blade extends to the outer wall of the crushing chamber via a connecting shaft, and the output end of the drive motor is connected to the connecting shaft via a connecting belt.

[0016] The beneficial effects of this utility model are:

[0017] (1) The rice fine pulverizer described in this utility model, compared with the prior art, achieves multi-stage fine pulverization of rice by using a nested design of a first-stage rotating pulverizing group + a second-stage fixed toothed disc group with an inner screen ring and an outer screen ring. The outer screen ring can rotate to adjust the screen gap, adapt to different pulverization particle size requirements, and improve pulverization efficiency and product uniformity.

[0018] (2) The rice fine pulverizer described in this utility model has a soft rubber scraper that contacts the inner wall of the inner screen ring to scrape off the powder adhering to the screen in real time, avoiding screen blockage and extending the service life of the screen. During the rotation of the rotating blade, the primary rotating pulverizing unit is driven to rotate rapidly. During the rotation, the connecting block drives the scraper to rotate. During the rotation, the scraper can carry the rice that has not passed through the bottom of the inner screen ring upwards for further crushing. At the same time, the powder scraped off the inner screen ring will also cause the inner screen ring to vibrate when it comes into contact with the inner screen ring, increasing the throughput and preventing the screen from clogging. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the crushing chamber of this utility model;

[0022] Figure 3 This is a diagram showing the opening of the side door of this utility model;

[0023] Figure 4 This is an internal view of the pulverizing chamber of this utility model;

[0024] Figure 5 This is a diagram showing the connection between the rotating blade and the primary rotating crushing unit of this utility model;

[0025] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle;

[0026] Figure 7 This is a three-dimensional structural diagram of the outer and inner screen rings of this utility model.

[0027] In the diagram: 100, frame; 200, drive motor; 210, connecting belt; 300, crushing chamber; 310, side door; 320, inclined hopper; 330, discharge port; 340, bolt; 350, fixing nut; 360, rotating blade; 361, primary rotating crushing unit; 363, connecting block; 364, scraper; 370, screening mechanism; 371, outer screen ring; 372, inner screen ring; 373, adjusting component; 380, fixing plate; 381, secondary fixed toothed disc assembly; 400, feed hopper; 410, material control valve. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figures 1-7 As shown, the present invention provides a rice fine pulverizer, which includes a frame 100, a drive motor 200, and a pulverizing chamber 300 for pulverizing.

[0030] The grinding chamber 300 is equipped with a two-stage grinding assembly, including a primary rotating grinding group 361 and a secondary fixed toothed disc group 381;

[0031] The crushing chamber 300 is equipped with a screening mechanism 370, which adopts an adjustable vibrating screen, including an outer screen ring 371 and an inner screen ring 372. The inner screen ring 372 is fixedly connected to the inner wall of the crushing chamber 300, and the outer screen ring 371 is rotatably connected to the inner wall of the crushing chamber 300, and the outer screen ring 371 is sleeved on the outer wall of the inner screen ring 372.

[0032] Through the nested design of the two-stage crushing components (first-stage rotating crushing group 361 + second-stage fixed toothed disc group 381) with the inner screen ring 37 and the outer screen ring 371, multi-stage fine crushing of rice is achieved. The outer screen ring 371 can rotate to adjust the screen gap, adapt to different crushing particle size requirements, and improve crushing efficiency and product uniformity.

[0033] As a technical optimization of the present invention, the outer screen ring 371 is fixedly connected to the side wall of the outer screen ring 371, and the adjustment member 373 is used to rotate and adjust the position of the outer screen ring 371. The side wall of the crushing chamber 300 is provided with a sliding groove that is adapted to the adjustment member 373, and the adjustment member 373 passes through the sliding groove.

[0034] The adjusting component 373 cooperates with the chute to simplify the adjustment of the screen gap, avoid stopping the machine to disassemble the screen, and improve the equipment's adjustment efficiency and ease of operation. During the crushing process, the side door 310 is closed to press the adjusting component 373, preventing relative movement between the inner screen ring 372 and the outer screen ring 371 during crushing, which would affect the quality of the crushed rice. The crushed rice flows out through the discharge port 330 located at the bottom of the crushing chamber 300.

[0035] As a technical optimization of the present invention, an infeed hopper 400 is integrally formed above the inclined hopper 320, and a control valve 410 for controlling the feeding speed of rice is provided on one side of the infeed hopper 400; a side door 310 is hinged to one side of the crushing chamber 300, and a hole for rice to enter is opened in the middle of the side door 310, and the inclined hopper 320 is integrally formed on the outer wall of the side door 310.

[0036] Rice is placed into the feed hopper 400. Under the action of gravity, the rice will enter the inclined hopper 320 by opening the control valve 410. The control valve 410 precisely controls the feeding speed to prevent excessive feeding from clogging the crushing chamber 300 and ensure continuous and stable operation.

[0037] As a technical optimization of the present invention, a connecting block 363 is fixedly connected to the outer wall of the rotating plate 360, and a scraper 364 is fixedly connected to the outer side of the connecting block 363.

[0038] The scraper blade 364 is made of soft rubber and is in contact with the inner wall of the inner screen ring 372.

[0039] The soft rubber scraper 364 contacts the inner wall of the inner screen ring 372, scraping away powder adhering to the screen in real time, preventing screen clogging and extending the screen's service life. During rotation, the rotating blade 360 ​​drives the primary rotating crushing unit 361 to rotate rapidly. During this rotation, the connecting block 363 drives the scraper 364 to rotate. The scraper 364, during its rotation, carries the unpassed rice accumulated at the bottom of the inner screen ring 372 upwards for further crushing, while simultaneously scraping away powder from the inner screen ring 372. When in contact with the inner screen ring 372, it also causes the inner screen ring 372 to vibrate, increasing the throughput and preventing screen clogging.

[0040] As a technical optimization of the present invention, a bolt 340 for connecting with the side door 310 is rotatably provided on one side of the crushing chamber 300. The non-hinged end of the crushing chamber 300 and the side door 310 are connected by the bolt 340 and the fixing nut 350.

[0041] Bolt 340 and fixing nut 350 connect side door 310 and crushing chamber 300 to ensure sealing, while also making disassembly convenient for maintenance and replacement of internal components.

[0042] As a technical optimization of the present invention, the first-stage rotating crushing unit 361 is fixedly connected to the side wall of the rotating plate 360, the second-stage fixed toothed disc unit 381 is fixedly connected to the side wall of the fixed plate 380, and the fixed plate 380 is fixedly embedded in the inner side of the side door 310; one side of the rotating plate 360 ​​extends to the outer wall of the crushing chamber 300 through the connecting shaft, and the output end of the drive motor 200 is connected to the connecting shaft through the connecting belt 210.

[0043] The connecting belt 210 transmission structure is simple and reliable, reducing power transmission loss and facilitating the separation and maintenance of the drive motor 200 and the crushing assembly. During operation, the drive motor 200 is turned on and rotates. The output end of the drive motor 200 drives the connecting shaft to rotate via the connecting belt 210. During the rotation of the connecting shaft, the rotating blade 360 ​​rotates, which in turn drives the primary rotating crushing assembly 361, connecting block 363, and scraper 364 connected to one side to rotate.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rice fine pulverizer, comprising a frame (100), a drive motor (200), and a pulverizing chamber (300) for pulverizing. Its features are: The grinding chamber (300) is equipped with a two-stage grinding assembly, including a primary rotating grinding group (361) and a secondary fixed toothed disc group (381). The crushing chamber (300) is equipped with a screening mechanism (370) which adopts an adjustable vibrating screen, including an outer screen ring (371) and an inner screen ring (372); the inner screen ring (372) is fixedly connected to the inner wall of the crushing chamber (300), the outer screen ring (371) is rotatably connected to the inner wall of the crushing chamber (300), and the outer screen ring (371) is sleeved on the outer wall of the inner screen ring (372).

2. The rice fine pulverizer according to claim 1, characterized in that: The outer sieve ring (371) is fixedly connected to an adjusting member (373) for rotating and adjusting the position of the outer sieve ring (371). The crushing chamber (300) is provided with a sliding groove adapted to the adjusting member (373) on its side wall. The adjusting member (373) passes through the sliding groove.

3. The rice fine pulverizer according to claim 1, characterized in that: A side door (310) is hinged to one side of the crushing chamber (300). The side door (310) has a hole in the middle for rice to enter, and an inclined hopper (320) is integrally formed on the outer wall of the side door (310).

4. A rice fine pulverizer according to claim 3, characterized in that: The first-stage rotating crushing unit (361) is fixedly connected to the side wall of the rotating plate (360), the second-stage fixed toothed disc unit (381) is fixedly connected to the side wall of the fixed plate (380), and the fixed plate (380) is fixedly embedded inside the side door (310).

5. A rice fine pulverizer according to claim 3, characterized in that: An integral feed hopper (400) is provided above the inclined hopper (320), and a control valve (410) for controlling the feeding speed of rice is provided on one side of the feed hopper (400).

6. A rice fine pulverizer according to claim 4, characterized in that: A connecting block (363) is fixedly connected to the outer wall of the rotating plate (360), and a scraper (364) is fixedly connected to the outer side of the connecting block (363). The scraper (364) is made of soft rubber material and is in contact with the inner wall of the inner screen ring (372).

7. A rice fine pulverizer according to claim 3, characterized in that: The crushing chamber (300) is rotatably provided on one side with a bolt (340) for connecting to the side door (310). The non-hinged end of the crushing chamber (300) and the side door (310) are connected by the bolt (340) and the fixing nut (350).

8. A rice fine pulverizer according to claim 4, characterized in that: The rotating blade (360) extends to the outer wall of the crushing chamber (300) via a connecting shaft on one side, and the output end of the drive motor (200) is connected to the connecting shaft via a connecting belt (210).

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