Rice fine screening and packaging production line

Abstract

The utility model relates to a rice fine screening and packaging production line in the field of automatic rice production. The rice fine screening and packaging production line comprises a feeding station, a primary screening adsorption station, a storage station, a color sorting station and a weighing and packaging station which are communicated in sequence. According to the winnowing device with the vertical side air inlet flow channel structure in the rice fine screening and packaging production line, particularly when a slit air channel mechanism is formed, a good adsorption effect on light impurities can be achieved when raw material rice falls down from a side face inlet, meanwhile, the mistaken suction amount of raw material rice particles is reduced, raw materials are saved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automated rice production, in particular to a rice fine screening and packaging production line. Background Art

[0002] Rice is a food made from rice grains after cleaning, husking, milling, and finishing. During the husking process, there will be a certain amount of impurities such as dust, debris, bran, and a small amount of empty husk rice caused by insects, which will affect the quality of rice packaging products.

[0003] In the prior art, rice screening is mainly completed by forming a production line through husking and color sorting. For example, announcement number CN201658988U discloses a rice processing production line, including a stone remover, a rice husker, a rice-rough separator, a rice milling system, a polishing system and a color sorter. The rice milling system includes: a rice milling machine and a rice milling speed regulating device connected to the rice milling machine motor; the polishing system includes: a polishing machine and a polishing speed regulating device connected to the polishing machine motor. This technology uses the rice milling system and the polishing system to peel and polish different rice varieties. Since only one color sorting is used, it is difficult to remove light and floating impurities in the finished product packaging. Utility Model Content

[0004] In view of the defects in the prior art, the utility model aims to provide a rice fine screening and packaging production line.

[0005] A rice fine screening and packaging production line provided by the utility model comprises:

[0006] A feeding station, comprising a feeding box and a first elevator, the raw rice enters the first elevator through the feeding box, and the first elevator lifts the raw rice to a predetermined height in portions;

[0007] The primary screening adsorption station includes an air selector and a second elevator. The raw rice dropped from the first elevator at a predetermined height falls into the air selector. The air selector absorbs light impurities in the raw rice by negative pressure and discharges them from the top. The primary screening rice formed after the light impurities are removed from the raw rice enters the second elevator from the bottom of the air selector.

[0008] A material storage station, comprising a material storage tank and a third elevator, wherein the pre-screened rice falls into the material storage tank from a predetermined height of the second elevator, and the material storage tank is connected to the third elevator;

[0009] A color sorting station includes an intermediate material chamber and a color sorter. The pre-screened rice falls from a predetermined height of the third elevator into the intermediate material chamber. The color sorter receives the pre-screened rice in the intermediate material chamber and performs color sorting to remove impurities of different colors to form finely screened rice.

[0010] The weighing and packaging station comprises a packaging scale and a fourth elevator, wherein the inlet of the fourth elevator is connected with the outlet of the color sorter, and the finely screened rice is output to the packaging scale through the fourth elevator for weighing and packaging.

[0011] In some embodiments, the air selector includes a first cavity, a second cavity, an air plate and an adjustment mechanism, the outer side of the first cavity is provided with a feed inlet, the bottom end of the first cavity is provided with a discharge port, and the top end of the second cavity is provided with a negative pressure adsorption port;

[0012] The first cavity is arranged adjacent to the second cavity, the partitions of the first cavity and the second cavity form an air duct, the air plate is located in the second cavity and connected to the regulating mechanism, and the air plate is close to or away from the air duct by a predetermined distance through the regulating mechanism.

[0013] In some embodiments, a boss is formed on the inner side of the feed port, and the boss and the air duct form a slit air duct.

[0014] In some embodiments, the adjustment mechanism includes multiple groups of adjustment components, and the adjustment components include a driving rod and a hinge plate. The hinge plate is a triangular plate, and the top angle end of the hinge plate is hinged in the second cavity. One end of the driving rod enters the second cavity and is hinged to the middle angle end of the hinge plate. The wind plate is provided with a vertical slide groove, and the bottom angle end of the hinge plate is slidably connected in the vertical slide groove.

[0015] In some embodiments, the storage bins are multiple groups, and the multiple groups of storage bins are arranged side by side. The storage station also includes a first scraper and a second scraper. The first scraper receives the initially screened rice from the second elevator and distributes it to each of the storage bins. The second scraper is used to receive the initially screened rice from the storage bins and transport it to the third elevator.

[0016] In some embodiments, the color sorting station includes multiple groups of the intermediate material bins and the color sorters, the third elevators are multiple groups, and the discharge ports of the multiple groups of the color sorters are merged to form a first material channel and a second material channel. The first material channel is connected to the fourth elevator, and the second material channel is connected to the third elevator. The finely screened rice after color sorting by the color sorter is color sorted again after passing through the third elevator.

[0017] In some embodiments, the weighing and packaging station also includes a third scraper machine, the inlet of the third scraper machine is connected to the outlet of the fourth elevator, the outlet of the third scraper machine is connected to the packaging scale, and the packaging scales are divided into multiple groups, and the models of the multiple groups of packaging scales are the same or different.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model adopts an air selector with a vertical side inlet air channel structure in the rice fine screening and packaging production line. Especially when a slit air channel mechanism is formed, it can form a good adsorption effect on light impurities when the raw rice falls from the side inlet, while reducing the amount of accidental suction of raw rice particles, saving raw materials and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the rice fine screening and packaging production line of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the air selector of the utility model. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0024] This embodiment provides a rice fine screening and packaging production line, which belongs to the raw material production line in the self-heating rice assembly production line, such as Figure 1 As shown, it mainly includes a feeding station 100, a primary screening and adsorption station 200, a material storage station 300, a color sorting station 400 and a weighing and packaging station 500 which are connected in sequence.

[0025] The feeding station 100 mainly includes a feeding box 110 and a first elevator 120. The raw rice enters from the inlet of the feeding box 110 and passes from the bottom outlet of the feeding box 110 to the rice holding plate of the first elevator 120. The first elevator 120 is provided with a circulating crawler and other structures to drive the rice holding plate to a predetermined height, which is generally the top position, and dumps the rice in the plate by cyclic flipping.

[0026] The primary screening adsorption station 200 mainly includes an air selector 210 and a second elevator 220. The first elevator 120 is connected to the air selector 210 through a pipeline. After the rice holding plate of the first elevator 120 is lifted to a predetermined height, the raw rice is turned over and scattered from the side inlet of the air selector 210. The air selector 210 is a negative pressure adsorption mechanism. The light impurities such as foam particles, bran and dust in the scattered raw rice are separated by suction force and discharged from the top port to form the primary screened rice after preliminary screening. The primary screened rice enters the second elevator 220 from the bottom outlet of the air selector 210, and the primary screened rice is lifted to a predetermined height by the second elevator 220. In this embodiment, the structure of the air selector 210 mainly includes a first cavity 211, a second cavity 212, an air plate 213 and an adjustment mechanism 214. The first cavity 211 and the second cavity 212 are two adjacent cavities located in the same shell structure. The first cavity 211 and the second cavity 212 are separated by a partition, and the air duct 215 is formed by removing the material on the partition. The air duct 215 can be an unobstructed rectangular door and window structure, or a obstructed shutter structure. In this embodiment, the unobstructed rectangular door and window structure is used as an example. The outer side of the first cavity 211 is provided with a feed port 2111, the bottom of the first cavity 211 is provided with a discharge port 2112, and the top of the second cavity 212 is provided with a negative pressure adsorption port 2121. The wind plate 213 is located in the second cavity 212. The wind plate 213 serves as the air door of the air duct 215. The wind pressure is adjusted by adjusting the distance from the air duct 215 through the adjustment mechanism 214. The adjustment mechanism 214 is mainly composed of a plurality of adjustment components, and the adjustment components mainly include a driving rod 2141 and a hinged plate 2142. One end of the driving rod 2141 enters the second cavity 212 through the sliding hole on the outer plate of the second cavity 212 and is connected to the hinge plate 2142. The hinge plate 2142 is a triangular structure plate, the top corner end of which is hinged to the corresponding support member disposed in the second cavity 212, the middle corner end of which is hinged to the end of the driving rod 2141, and the bottom corner end of which is slidably connected to the vertical sliding groove 2131 provided on the wind plate 213. Figure 2As shown, when the driving rod 2141 is pushed into the cavity by manual or automatic means, since the top angle end of the hinged plate 2142 is hinged and rotatable, the driving rod 2141 pushes the hinged plate 2142 to rotate clockwise through the middle angle end hinged to the hinged plate 2142, so that the bottom angle end of the hinged plate 2142 slidably connected to the vertical slide groove 2131 slides upward along the slide groove while pushing the wind plate 213 to move horizontally toward the air duct 215, thereby making the air outlet formed between the wind plate 213 and the air duct 215 smaller, thereby increasing the suction pressure in the first cavity 211, and pulling the driving rod 2141 in the reverse direction will increase the distance between the wind plate 213 and the air duct 215, thereby achieving the effect of reducing the suction pressure in the first cavity 211. This embodiment also provides an improved structure of an air selector 210, the main changes of which are: a boss 2113 is formed in the first cavity 211, the boss 2113 is located on the inner side of the feed port 2111, and the side of the boss 2113 extends a predetermined distance in the direction of the air duct 215, and a slit air duct 216 is formed between the side of the boss 2113 and the air plate 213. The arrangement of the boss 2113 to form the slit air duct 216 can greatly improve the suction force, which improves the suction and separation effect of light impurities in the raw rice below the slit air duct 216, and can effectively save energy consumption and reduce costs.

[0027] The material storage station 300 mainly includes a material storage tank 310 and a third elevator 320. The material storage tank 310 is connected to the second elevator 220, and the pre-screened rice dropped from the second elevator 220 at a predetermined height enters the material storage tank 310, and the pre-screened rice is transferred to the color sorting station 400 through the material storage tank 310 and the third elevator 320 connected thereto. The material storage tank 310 is mainly used to ensure the continuity and stability of the operation. In this embodiment, the material storage tank 310 is a plurality of groups, and the plurality of groups of material storage tanks 310 are arranged side by side. At the same time, the material storage station 300 is also adapted to be provided with a first scraper 330 and a second scraper 340. The scraper of the first scraper 330 is located above the storage tank 310. The pre-screened rice lifted to a predetermined height of the second elevator 220 falls onto the scraper of the first scraper 340. The first scraper 330 distributes the pre-screened rice on its scraper to the storage tank 310 below. The pre-screened rice in each storage tank 310 falls onto the scraper of the second scraper 340 located below it through an independently controlled discharge port. The second scraper 340 scrapes the pre-screened rice on its scraper into the third elevator 320. By providing multiple groups of storage tanks and matching scrapers, the storage capacity of pre-screened rice can be further increased to ensure the continuity of production line operation.

[0028] The color sorting station 400 mainly includes an intermediate material chamber 410 and a color sorter 420. The third hoist 320 is connected to the intermediate material chamber 410, and the pre-screened rice lifted to a predetermined height by the third hoist 320 falls into the intermediate material chamber 410. The feed port of the color sorter 420 is connected to the discharge port of the intermediate material chamber 410. After the pre-screened rice enters the color sorter 420, the heterochromatic granular impurities in the pre-screened rice are automatically sorted by photoelectric detection technology. The heterochromatic granular impurities mainly include stones and other granular materials that are different from the color of rice. The color sorter 420 can further remove the heavy granular impurities in the pre-screened rice to form a finely screened rice with higher purity. The so-called heavy granular impurities are mainly granular impurities with a density greater than that of rice, which are difficult to remove by negative pressure adsorption in the air selector 210. In this embodiment, the intermediate material chamber 410 and the color sorter 420 are arranged in groups and multiple groups are arranged. Taking 2 groups as an example, each group is adapted to be equipped with a third elevator 320, and the number of the third elevators 320 is 2. The discharge ports of the 2 groups of color sorters 420 are connected to a multi-way valve, and the multi-way valve has a first material channel 430 and a second material channel 440. The first material channel 430 is used to output the finely screened rice, and the second material channel 440 is used to communicate with the third elevator 320. The finely screened rice is transported to the intermediate material chamber 410 again through the third elevator 320, and filtered and screened again through the color sorter 420 to further improve the purity of the finely screened rice. According to the purity requirements, multiple cycles of screening can be performed.

[0029] The weighing and packaging station 500 mainly includes a packaging scale 510 and a fourth elevator 520. The inlet of the fourth elevator 520 is connected to the outlet of the color sorter 420. The finely screened rice after screening by the color sorter 420 enters the fourth elevator 520 and is lifted to a predetermined height. In this embodiment, there are multiple groups of packaging scales 510, and the models of the multiple groups of packaging scales 510 are not exactly the same. Figure 1 As shown, the packaging scale 510 includes one group of 3KW packaging scales and three groups of 6KW packaging scales. At this time, the station also includes a third scraper 530, and the outlet of the fourth elevator 520 is connected to the inlet of the third scraper 530. The fourth elevator 520 inputs the finely screened rice into the third scraper 530, and the rice is input into each group of packaging scales 510 through the outlets of the third scraper 530 with multiple controllable switches.

[0030] The rice fine screening and packaging production line provided by the utility model adopts an air selector with a vertical side inlet air channel structure, especially when a slit air channel mechanism is formed, so that when the raw rice falls from the side inlet, a good adsorption effect is formed on light impurities, and the amount of accidental suction of raw rice particles is reduced, thereby saving raw materials and reducing costs.

[0031] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A rice fine screening and packaging production line, characterized in that: include: A feeding station (100) comprises a feeding box (110) and a first elevator (120), wherein the raw rice enters the first elevator (120) through the feeding box (110), and the first elevator (120) lifts the raw rice in portions to a predetermined height; The primary screening adsorption station (200) comprises an air selector (210) and a second elevator (220). The raw rice spilled from the first elevator (120) at a predetermined height falls into the air selector (210). The air selector (210) adsorbs light impurities in the raw rice by negative pressure and discharges them from the top. The primary screening rice formed after the light impurities are removed from the raw rice enters the second elevator (220) from the bottom of the air selector (210). A material storage station (300) comprises a material storage compartment (310) and a third elevator (320), wherein the pre-screened rice falls from the second elevator (220) at a predetermined height into the material storage compartment (310), and the material storage compartment (310) is connected to the third elevator (320); The color sorting station (400) comprises an intermediate material chamber (410) and a color sorter (420), wherein the pre-screened rice falls from the third elevator (320) to the intermediate material chamber (410) at a predetermined height, and the color sorter (420) receives the pre-screened rice in the intermediate material chamber (410) and performs color sorting to remove impurities of different colors to form finely screened rice; The weighing and packaging station (500) comprises a packaging scale (510) and a fourth elevator (520), wherein the inlet of the fourth elevator (520) is connected to the outlet of the color sorter (420), and the finely screened rice is output to the packaging scale (510) through the fourth elevator (520) for weighing and packaging.

2. The rice fine screening and packaging production line according to claim 1, characterized in that, The air selector (210) comprises a first cavity (211), a second cavity (212), an air plate (213) and an adjusting mechanism (214); a feed port (2111) is arranged on the outer side of the first cavity (211); a discharge port (2112) is arranged at the bottom of the first cavity (211); and a negative pressure adsorption port (2121) is arranged at the top of the second cavity (212); The first cavity (211) and the second cavity (212) are arranged adjacent to each other, and partitions between the first cavity (211) and the second cavity (212) form an air duct (215). The air plate (213) is located in the second cavity (212) and is connected to the regulating mechanism (214). The air plate (213) is moved closer to or farther away from the air duct (215) by a predetermined distance through the regulating mechanism (214).

3. The rice fine screening packaging production line according to claim 2, characterized in that, A boss (2113) is formed on the inner side of the feed port (2111), and the boss (2113) and the air duct (215) form a slit air duct (216).

4. The rice fine screening and packaging production line according to claim 2 or 3, characterized in that, The adjustment mechanism (214) includes a plurality of adjustment components, and the adjustment components include a driving rod (2141) and a hinged plate (2142). The hinged plate (2142) is a triangular plate. The top corner end of the hinged plate (2142) is hinged in the second cavity (212). One end of the driving rod (2141) enters the second cavity (212) and is hinged to the middle corner end of the hinged plate (2142). The wind plate (213) is provided with a vertical sliding groove (2131). The bottom corner end of the hinged plate (2142) is slidably connected in the vertical sliding groove (2131).

5. The rice fine screening and packaging production line according to claim 2, characterized in that, The material storage bins (310) are multiple groups, and the multiple groups of material storage bins (310) are arranged side by side. The material storage station (300) further comprises a first scraper (330) and a second scraper (340). The first scraper (330) receives the pre-screened rice from the second elevator (220) and distributes it to each of the material storage bins (310). The second scraper (340) receives the pre-screened rice from the material storage bins (310) and transports it to the third elevator (320).

6. The rice fine screening and packaging production line according to claim 2, characterized in that, The color sorting station (400) includes a plurality of groups of the intermediate material bins (410) and the color sorters (420), the third elevators (320) are a plurality of groups, and the discharge ports of the plurality of groups of the color sorters (420) are merged to form a first material channel (430) and a second material channel (440), the first material channel (430) is connected to the fourth elevator (520), and the second material channel (440) is connected to the third elevator (320), and the finely screened rice after color sorting by the color sorter (420) is color sorted again after passing through the third elevator (320).

7. The rice fine screening and packaging production line according to claim 2, characterized in that, The weighing and packaging station (500) also includes a third scraper (530), the inlet of the third scraper (530) is connected to the outlet of the fourth elevator (520), and the outlet of the third scraper (530) is connected to the packaging scale (510). The packaging scale (510) is divided into multiple groups, and the models of the multiple groups of packaging scales (510) are the same or different.

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