Screw conveyer capable of feeding and winnowing

Abstract

The utility model is suitable for the technical field of conveyors, and provides a spiral conveyor capable of feeding and winnowing, which comprises a conveying frame, and a spiral conveying roller is rotationally mounted in the conveying frame. According to the spiral conveyor capable of feeding and winnowing, due to the fact that the buffer frame is arranged, when rice falls onto the buffer frame, the staying time of the rice in the air can be prolonged through the periodical inclined face on the surface of the buffer frame, meanwhile, the contact time of airflow and the rice is prolonged, and therefore the rice can be separated from empty shells and dust more thoroughly; the bottom of the dust discharging frame is arranged to be an inclined face, small rice can flow back into the fixing frame under the gravity effect of the small rice, waste of part of the rice is avoided, the discharging speed of the rice can be kept constant through the partition plate, and the situation that due to the fact that rice discharging is too fast, winnowing dust removal is not thorough is avoided. And meanwhile, dust is prevented from being blown out from the top of the feeding frame by air.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the conveyor technical field especially relates to a screw conveyor of material feeding air separation. BACKGROUND

[0002] Rice, we usually call it rice, is the food obtained after a series of processing steps, such as cleaning, shelling, milling and arranging, and the screw conveyor of material feeding air separation is usually used in the processing of rice to realize the feeding and other steps of the rice, wherein the air separation is to blow out the fine dust in the rice by using the air force to ensure the cleanliness of the rice, the blowing port of the air separation mechanism of the existing screw conveyor is generally at the discharge port of the rice, and the rice falls in the air after being poured, and the empty shell dust in the rice is blown out by blowing at this time.

[0003] However, in the air separation process of the existing screw conveyor, the rice is generally free falling, the time of staying in the air is too short, the time of airflow contacting the rice is not enough, and in addition, the discharging speed of the rice is too fast, which will lead to the difficulty of completely separating the empty shell dust in the rice, so repeated air separation is needed, thereby wasting time. UTILITY MODEL CONTENT

[0004] The utility model provides a screw conveyor of material feeding air separation, aims at solving the problem of incomplete air separation of the current rice and repeated air separation and time waste.

[0005] The utility model is realized in this way, a screw conveyor of material feeding air separation, including the conveying frame, the inside rotation of the conveying frame is installed with spiral conveying roller, the left side outer wall of the conveying frame is installed with first motor, the output shaft of first motor is connected with the center shaft of spiral conveying roller, the upper end of the conveying frame is installed with fixed frame, the top of fixed frame is installed with feeding frame, the inner side wall of fixed frame is installed with buffer frame, the rear side wall of fixed frame is equipped with dust removal groove, the buffer frame is installed with inclination and the upper surface is set as sawtooth, the top of fixed frame is provided with feeding groove, the bottom of fixed frame is provided with discharge slot, the discharge slot is located at the left lower side of buffer frame, the front side of fixed frame is installed with fan, the blowing port of fan is located at the front side wall of fixed frame.

[0006] Preferably, the rear side wall of the fixed frame is installed with a dust removal frame, the rear side of the dust removal frame is installed with a cloth bag, and the cloth bag is breathable.

[0007] Preferably, the dust removal frame is installed with an inclined rod at the rear side of the fixed frame, and the lower surface of the dust removal frame is set as an inclined surface and inclines upward from inside to outside.

[0008] Preferably, the top of the feeding frame is open and the bottom is communicated with the feeding groove, the inner side wall of the feeding frame is rotationally installed with a rotating shaft, the surface of the rotating shaft is installed with three groups of baffles in a circumferential array, and the rear side outer wall of the feeding frame is installed with a second motor, and the output shaft of the second motor is connected with the rotating shaft.

[0009] Preferably, the upper surface of the conveying frame is installed with a limiting block, the right side wall of the fixed frame is provided with a clamping groove matched with the top shape of the buffer frame, and the conveying frame and the fixed frame are detachable.

[0010] Preferably, the bottom of the conveying frame is installed with a grating plate, and a blowdown port is formed in the right side of the grating plate and corresponds to the bottom of the conveying frame.

[0011] Compared with the prior art, the embodiment of the application has the following beneficial effects:

[0012] By arranging the buffer frame, when the rice falls on the buffer frame, the phased inclined surface of the buffer frame can prolong the time of the rice staying in the air and prolong the contact time of the airflow and the rice, so that the separation of the rice, the empty hulls and the dust is more complete, thereby improving the winnowing effect of the rice. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 is a schematic diagram of the front view cross-sectional structure of the utility model;

[0015] Figure 3 is a schematic diagram of the side view cross-sectional structure of the utility model;

[0016] Figure 4 is a schematic diagram of the top view cross-sectional structure of the feeding frame of the utility model;

[0017] In the drawing: 1, conveying frame; 2, spiral conveying roller; 3, first motor; 4, fixed frame; 5, feeding frame; 6, buffer frame; 7, feeding groove; 8, discharge groove; 9, fan; 10, dust removal frame; 11, cloth bag; 12, rotating shaft; 13, baffle; 14, second motor; 15, limiting block; 16, grating plate. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise", "have" and "include" or variations such as "comprises", "comprising", "including" and "includes", are intended to be inclusive or open-ended and do not exclude additional, unrecited elements or method steps; the use of terms such as "first", "second" and the like in the description herein is intended to indicate different sequentially or otherwise, and not to denote a particular order of implementation.

[0019] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are combinable with each other.

[0020] The utility model discloses an embodiment provides a kind of screw conveyor that can feed air selection, as shown in Figures 1-4 The utility model discloses an embodiment provides a kind of screw conveyor that can feed air selection, as shown in Fig. 1 includes conveying frame 1, conveying frame 1 is rotatably installed with spiral conveying roller 2, the left side outer wall of conveying frame 1 is installed with first motor 3, the output shaft of first motor 3 is connected with the center axis of spiral conveying roller 2, the upper end of conveying frame 1 is installed with fixed frame 4, the top of fixed frame 4 is installed with feeding frame 5, the inner side wall of fixed frame 4 is installed with buffer frame 6, the rear side wall of fixed frame 4 is provided with dust discharging groove, buffer frame 6 is obliquely installed and upper surface is provided with sawtooth shape, the top of fixed frame 4 is provided with feeding groove 7, the bottom of fixed frame 4 is provided with discharge groove 8, discharge groove 8 is located in the lower left side of buffer frame 6, the front side of fixed frame 4 is installed with fan 9, the air outlet of fan 9 is located in the front side wall of fixed frame 4, when the device is used, rice can be poured into fixed frame 4 from feeding frame 5, rice falls on buffer frame 6 from feeding frame 5, and then flows to discharge groove 8 from buffer frame 6, in this process, the dust and empty shell mixed in rice are blown out from the dust discharging groove of fixed frame 4 by the wind blown by fan 9, and the rice after air selection finally falls into conveying frame 1, the spiral conveying roller 2 in conveying frame 1 conveys rice, the device is provided with buffer frame 6, when rice falls on buffer frame 6, the phased inclined surface of buffer frame 6 can improve the time of rice staying in the air, and the contact time of air flow and rice is improved, so that the separation of rice, empty shell and dust is more thorough, thereby improving the air selection effect of rice.

[0021] The rear side wall of the fixed frame 4 is provided with a dust removal frame 10, and the rear side of the dust removal frame 10 is provided with a cloth bag 11, which is breathable. The cloth bag 11 can collect the air shell and dust blown out, avoid the dust flying into the air, and make the device more environmentally friendly.

[0022] The dust removal frame 10 is obliquely installed on the rear side of the fixed frame 4, and the lower surface of the dust removal frame 10 is inclined upward from inside to outside. The bottom of the dust removal frame 10 is inclined, and the mass of the small rice is small, so that the small rice is easily blown out with the air shell during winnowing. The bottom of the dust removal frame 10 is inclined, so that the small rice flows back into the fixed frame 4 under the action of its own gravity, thereby avoiding the waste of part of the rice.

[0023] The top of the feeding frame 5 is open, and the bottom is communicated with the feeding groove 7. The inner side wall of the feeding frame 5 is rotatably provided with a rotating shaft 12. Three groups of partition plates 13 are circumferentially arranged on the surface of the rotating shaft 12. The rear side wall of the feeding frame 5 is provided with a second motor 14, and the output shaft of the second motor 14 is connected with the rotating shaft 12. The three groups of partition plates 13 are uniformly rotated under the driving of the second motor 14, so that the discharging speed of the rice is kept constant, avoiding the incomplete dust removal caused by the too fast discharging of the rice, and avoiding the air blowing the dust out of the top of the feeding frame 5.

[0024] The upper surface of the conveying frame 1 is provided with a limiting block 15. The right side wall of the fixed frame 4 is provided with a clamping groove matched with the top of the buffer frame 6. The conveying frame 1 and the fixed frame 4 are detachable. The limiting block 15 can limit the buffer frame 6. When the fixed frame 4 is detached from the conveying frame 1, the buffer frame 6 can be pulled forward from the inside of the fixed frame 4 and detached. The buffer frame 6 is convenient to clean.

[0025] The bottom of the conveying frame 1 is provided with a grating plate 16. The right side of the grating plate 16 is provided with a sewage outlet corresponding to the bottom of the conveying frame 1. The rice conveyed by the spiral conveying roller 2 falls into the gap of the grating plate 16, and the long stem mixed in the rice is continuously conveyed to the sewage outlet by the spiral conveying roller 2 and discharged.

[0026] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0027] In several embodiments provided by the present application, it should be understood that the disclosed apparatus can be implemented by other manners. For example, the apparatus embodiments described above are merely illustrative, for example, the division of the above units can have another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection between the units through some interfaces, or can be electrical or other forms.

[0028] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment. The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete or make other adjustments to the features of the embodiments of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also belong to the scope of protection of the present application.

Claims

1. A feedable air-sluπable screw conveyor, characterized in that The utility model provides an improved conveying frame, which comprises a conveying frame (1), a spiral conveying roller (2) is rotatably installed in the conveying frame (1), a first motor (3) is installed on the left outer wall of the conveying frame (1), the output shaft of the first motor (3) is connected with the central shaft of the spiral conveying roller (2), a fixed frame (4) is installed on the upper end of the conveying frame (1), a feeding frame (5) is installed on the top of the fixed frame (4), a buffer frame (6) is installed on the inner side wall of the fixed frame (4), a dust discharging groove is formed in the back side wall of the fixed frame (4), the buffer frame (6) is installed in an inclined manner and the upper surface is provided in a sawtooth shape, a feeding groove (7) is arranged on the top of the fixed frame (4), a discharging groove (8) is arranged on the bottom of the fixed frame (4), the discharging groove (8) is located on the left lower side of the buffer frame (6), a fan (9) is installed on the front side of the fixed frame (4), and the blowing port of the fan (9) is located on the front side wall of the fixed frame (4).

2. A feedable air-sluπtable screw conveyor as claimed in claim 1, characterized in that A dust discharging frame (10) is installed on the back side wall of the fixed frame (4), a cloth bag (11) is installed on the back side of the dust discharging frame (10), and the cloth bag (11) is breathable.

3. A feedable air-sluπable screw conveyor as claimed in claim 2, characterized in that The dust discharging frame (10) is installed in an inclined manner on the back side of the fixed frame (4), and the lower surface of the dust discharging frame (10) is provided in an inclined manner from inside to outside and upward.

4. An air-entrainable screw conveyor as claimed in claim 1, wherein, The top of the feeding frame (5) is open, the bottom is communicated with the feeding groove (7), a rotating shaft (12) is rotatably installed on the inner side wall of the feeding frame (5), three groups of partition plates (13) are arranged on the surface of the rotating shaft (12) in a circumferential array, a second motor (14) is installed on the back side outer wall of the feeding frame (5), and the output shaft of the second motor (14) is connected with the rotating shaft (12).

5. An air-entrainable screw conveyor as claimed in claim 1, wherein, A limiting block (15) is installed on the upper surface of the conveying frame (1), a clamping groove is formed in the right side wall of the fixed frame (4) and matched with the top of the buffer frame (6), and the conveying frame (1) and the fixed frame (4) are detachable.

6. An air-entrainable screw conveyor as claimed in claim 1, wherein, A grating plate (16) is installed on the bottom of the conveying frame (1), and a blow-off port is formed in the right side of the grating plate (16) and corresponds to the bottom of the conveying frame (1).

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