Auger structure of rice mill and intelligent rice selling machine

Abstract

The utility model discloses an auger structure of a rice husking machine and an intelligent rice selling machine. The auger structure comprises a supporting shaft and milling blades, wherein the milling blades spirally extend in the axial direction of the supporting shaft and are arranged on the supporting shaft in a winding mode. Particularly, the grinding blade is provided with a first blade section and a second blade section which are sequentially arranged and connected in the axial direction of the supporting shaft, the screw pitch of the first blade section is larger than that of the second blade section, and the lead angle of the second blade section is larger than that of the first blade section. In addition, when the auger structure is rotationally installed in a rice milling bin of the rice milling machine through the supporting shaft, the first blade section is close to a feeding port of the rice milling bin, and the second blade section is close to a discharging port of the rice milling bin. The auger is simple and reasonable in structure, the processing efficiency, processing quality and precision of the rice mill can be effectively improved, the production requirement is well met, and the auger can be well applied to the intelligent rice selling machine.

Description

Technical Field

[0001] The utility model relates to the technical field of rice milling machines, in particular to an auger structure of a rice milling machine and an intelligent rice vending machine. Background Art

[0002] The rice milling machine is a common equipment in rice production and processing, which usually includes a rice milling bin, a feeding funnel connected to the rice milling bin, and a screw conveyor (common name for a spiral conveying structure) that rotates inside the rice milling bin. When the rice milling machine is used to process rice, the rice is first poured into the feeding funnel and then flows into the rice milling bin. The screw conveys, grinds, hulls and removes the rice to obtain rice.

[0003] In the auger structure commonly used in the industry, the spiral blades are generally regular and symmetrical in structure. Specifically, if the spiral blades are divided into a number of blade bodies that are arranged and connected in sequence, the pitch between each two adjacent blade bodies, as well as the characteristic parameters such as the helical angle and thickness of the several blade bodies are all the same.

[0004] Although the above-mentioned spiral blade structure can realize the transportation and grinding of rice, in actual application, there are still some shortcomings such as material blockage and unsatisfactory grinding effect, which affect the processing efficiency and quality of the auger and the rice mill.

[0005] In view of this, the present utility model is proposed. Summary of the invention

[0006] In order to overcome the above-mentioned defects, the utility model provides an auger structure of a rice mill and an intelligent rice vending machine, which have a simple and reasonable structure, can effectively improve the processing efficiency, processing quality and precision of the rice mill, and well meet the production needs.

[0007] The utility model adopts a technical solution to solve its technical problems: an auger structure of a rice milling machine, comprising a support shaft and a grinding blade spirally extending along the axial direction of the support shaft and wound around the support shaft; the grinding blade is provided with a first blade segment and a second blade segment sequentially arranged and connected along the axial direction of the support shaft, the pitch of the first blade segment is greater than the pitch of the second blade segment, and the helical lead angle of the second blade segment is greater than the helical lead angle of the first blade segment; in addition, when the auger structure is rotatably installed in a rice milling bin of the rice milling machine through the support shaft, the first blade segment is close to the feed inlet of the rice milling bin, and the second blade segment is close to the discharge outlet of the rice milling bin.

[0008] As a further improvement of the present invention, the pitch of the first blade segment is 28 to 35 mm; the pitch of the second blade segment is 12 to 15 mm.

[0009] As a further improvement of the present invention, the helix angle of the first blade segment is 10° to 18°; the helix angle of the second blade segment is 20° to 30°.

[0010] As a further improvement of the present invention, a vertical distance between an outer side surface of the first blade segment and an outer surface of the support shaft is greater than a vertical distance between an outer side surface of the second blade segment and an outer surface of the support shaft.

[0011] As a further improvement of the present invention, the axial length of the second blade segment accounts for 1 / 2 to 3 / 4 of the total axial length of the grinding blade.

[0012] As a further improvement of the present invention, the first blade segment and the second blade segment have the same thickness, which is 3-10 mm.

[0013] The utility model also provides an intelligent rice vending machine, comprising the auger structure of the rice milling machine as described in the utility model.

[0014] The beneficial effects of the utility model are as follows: 1) The utility model innovates the structure of the grinding blades of the auger structure of the rice milling machine, and divides it into a first blade segment with a large pitch and a second blade segment with a large spiral angle, wherein the first blade segment can realize smooth and stable grinding and shelling of a large amount of rice flowing into the rice milling bin to obtain coarse rice, which is beneficial to improving the processing efficiency and processing quality of the auger structure and avoiding blockage at the feed port of the rice milling bin; the second blade segment can realize rapid pushing and compression of coarse rice overflow, which is beneficial to friction contact between coarse rice and the inner wall of the rice milling bin to remove the placenta to obtain polished rice, significantly improving the processing accuracy and quality of rice, and further improving the processing efficiency of the auger structure to avoid material blockage. 2) The auger structure of the utility model is simple, reasonable, easy to process and manufacture, and has a low manufacturing cost, and is suitable for use in rice mills and intelligent rice vending machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the installation state when the auger structure of the rice milling machine of the utility model is installed in the rice milling bin;

[0016] Figure 2 for Figure 1 An enlarged structural schematic diagram of the auger structure of the rice mill is shown in FIG.

[0017] Combined with the accompanying drawings, the following description is given:

[0018] 1. Auger structure; 10. Support shaft; 11. Grinding blade; 110. Blade body; 111. First blade segment; 112. Second blade segment; 2. Rice milling bin. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. Embodiment 1:

[0020] The present embodiment 1 provides an auger structure of a rice milling machine, which is rotatably installed in a rice milling bin 2 of the rice milling machine to transport, grind, hull and remove the rice grains flowing into the rice milling bin 2 to obtain rice (polished rice).

[0021] Please refer to the attached Figure 1 and attached Figure 2 As shown, the auger structure 1 of the rice milling machine described in this embodiment 1 includes a support shaft 10 and a grinding blade 11 extending spirally along the axial direction of the support shaft 10 and wound around the support shaft 10, and the auger structure 1 can be rotatably installed in the rice milling bin 2 of the rice milling machine through the support shaft 10.

[0022] In order to improve processing efficiency, processing quality and precision, the present embodiment 1 has made the following structural improvements to the auger structure 1: the grinding blade 11 is divided into two sections, namely a first blade segment 111 and a second blade segment 112 which are arranged and connected in sequence along the axial direction of the support shaft 10, wherein the first blade segment 111 is close to the feed port of the rice milling bin 2, and the pitch of the first blade segment 111 is greater than the pitch of the second blade segment 112; the second blade segment 112 is close to the discharge port of the rice milling bin 2, and the helix angle of the second blade segment 112 is greater than the helix angle of the first blade segment 111.

[0023] From the above, it can be seen that ① because the first blade segment 111 is close to the feed port of the rice milling bin 2 and belongs to the head segment of the auger structure 1, by designing the pitch of the first blade segment 111 to be a larger value (greater than the pitch of the second blade segment 112), it is beneficial for the first blade segment 111 to smoothly and stably grind and shell a large amount of rice flowing into the rice milling bin 2 to obtain coarse rice (coarse rice is an intermediate product of rice that has been shelled but still wrapped in the placenta); thereby, it is beneficial to improve the processing quality and efficiency of the auger structure 1, and avoid blockage at the feed port of the rice milling bin 2. ② The second blade segment 112 is connected to the first blade segment 111 and is close to the discharge port of the rice milling bin 2. By designing the spiral angle of the second blade segment 112 to a larger value (greater than the spiral angle of the first blade segment 111), it is beneficial for the second blade segment 112 to quickly push and compress the coarse rice overflow, thereby facilitating the friction contact between the coarse rice and the inner wall of the rice milling bin 2 to remove the placenta and obtain polished rice, significantly improving the processing accuracy and quality of rice. In addition, based on the above-mentioned larger spiral angle setting, combined with the high-speed rotation condition of the auger structure 1, it is beneficial for the rice grains to be pushed very quickly, further improving the processing efficiency of the auger structure 1 and avoiding material blockage.

[0024] Supplementary explanation: ① Regarding the pitch, the industry defines it as: the axial distance between each two adjacent blade bodies 110 in the spiral blade structure (see the attached Figure 2 As for the blade body 110, it can be understood as follows: Figure 2 As shown, the grinding blade 11 can be divided into a plurality of blade bodies 110 which are sequentially arranged and fixedly connected along the axial direction of the support shaft 10. Correspondingly, the first blade segment 111 and the second blade segment 112 each include a plurality of blade bodies 110, wherein the pitch L1 between each adjacent two blade bodies 110 in the first blade segment 111 is equal, the pitch L2 between each adjacent two blade bodies 110 in the second blade segment 112 is equal, and the pitch L1 between each adjacent two blade bodies 110 in the first blade segment 111 (which can be referred to as the pitch of the first blade segment 111) is greater than the pitch L2 between each adjacent two blade bodies 110 in the second blade segment 112 (which can be referred to as the pitch of the second blade segment 112). ② Regarding the helix angle, it is defined in the industry as: the angle between the tangent of the helix and the plane perpendicular to the axis of the helix on the mid-diameter cylindrical surface. In short, the above pitch and helix angle are common characterization parameters in the spiral blade structure, so they will not be described in detail here.

[0025] The auger structure of the rice milling machine described in the first embodiment is further described below.

[0026] Please continue to refer to the attached Figure 2 As shown, in this embodiment 1, the characterization parameters of the first blade segment 111 are optimized as follows: the pitch L1 is 28 to 35 mm (may be further preferably 30 mm); the helix angle is 10° to 18° (may be further preferably 15°); and the thickness H0 is 3 to 10 mm (may be further preferably 5 mm).

[0027] The characterizing parameters of the second blade segment 112 are optimized as follows: the pitch L2 is 12-15 mm (can be further preferably 15 mm); the helix angle is 20°-30° (can be further preferably 25°); and the thickness H0 is 3-10 mm (can be further preferably 5 mm).

[0028] In addition, based on the working contents of the first blade segment 111 and the second blade segment 112, the first blade segment 111 and the second blade segment 112 are also optimized as follows: ① The vertical distance H1 between the outer side of the first blade segment 111 and the outer surface of the support shaft 10 is greater than the vertical distance H2 between the outer side of the second blade segment 112 and the outer surface of the support shaft 10. It can be understood that the first gap formed between the outer side of the first blade segment 111 and the inner wall of the rice milling bin 2 is smaller than the second gap formed between the outer side of the second blade segment 112 and the inner wall of the rice milling bin 2. By means of the first and second gaps, the first blade segment 111 can perform good milling and husking and fast transportation of the rice flowing into the first gap, and the second blade segment 112 can very fast transport and mill the rice flowing into the second gap to remove the afterbirth.

[0029] ② The axial length of the second blade segment 112 accounts for 1 / 2 to 3 / 4 of the total axial length of the grinding blade 11. By performing the above-mentioned reasonable optimization and control on the axial length of the second blade segment 112, the processing quality and precision of rice can be well ensured and improved. Embodiment 2:

[0030] The second embodiment provides an intelligent rice vending machine, which includes a rice milling machine. The auger structure 1 provided in the first embodiment is rotatably arranged in the rice milling bin 2 of the rice milling machine to transport and husk the rice flowing into the rice milling bin 2 to obtain rice (polished rice).

[0031] To sum up, the auger structure of the rice milling machine described in the utility model is simple and reasonable, which can effectively improve the processing efficiency, processing quality and precision of the rice milling machine, well meet the production needs, and can be well applied to intelligent rice vending machines.

[0032] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. An auger structure of a rice mill, comprising a support shaft (10) and a grinding blade (11) extending spirally along the axial direction of the support shaft (10) and wound around the support shaft (10); characterized in that: The grinding blade (11) is provided with a first blade segment (111) and a second blade segment (112) which are sequentially arranged and connected along the axial direction of the support shaft (10); the pitch of the first blade segment (111) is greater than the pitch of the second blade segment (112); and the helix angle of the second blade segment (112) is greater than the helix angle of the first blade segment (111); Furthermore, when the auger structure (1) is rotatably installed in a rice milling bin (2) of a rice milling machine via the support shaft (10), the first blade segment (111) is close to a feed inlet of the rice milling bin (2), and the second blade segment (112) is close to a discharge outlet of the rice milling bin (2).

2. The auger structure of the rice mill according to claim 1 is characterized in that: The pitch of the first blade segment (111) is 28 to 35 mm; the pitch of the second blade segment (112) is 12 to 15 mm.

3. The auger structure of the rice mill according to claim 1 is characterized in that: The helix angle of the first blade segment (111) is 10° to 18°; the helix angle of the second blade segment (112) is 20° to 30°.

4. The auger structure of the rice mill according to claim 1, characterized in that: The vertical distance between the outer side surface of the first blade segment (111) and the outer surface of the support shaft (10) is greater than the vertical distance between the outer side surface of the second blade segment (112) and the outer surface of the support shaft (10).

5. The auger structure of the rice mill according to claim 1, characterized in that: The axial length of the second blade segment (112) accounts for 1 / 2 to 3 / 4 of the total axial length of the grinding blade (11).

6. The auger structure of the rice mill according to claim 1, characterized in that: The first blade segment (111) and the second blade segment (112) have the same thickness, both of which are 3 to 10 mm.

7. An intelligent rice vending machine, characterized in that: The invention comprises the auger structure of the rice milling machine as claimed in any one of claims 1 to 6.

Images