Sweet potato cleaning and sorting all-in-one machine

Abstract

The invention relates to the field of sweet potato processing, in particular to a sweet potato cleaning and sorting all-in-one machine which comprises a cleaning box, an air pumping part, a circulating part, a lifting part and a sorting part. An inclined filter plate and an air nozzle are arranged in the cleaning box, bubbles are generated through an air pump, circulating cleaning liquid flows, and silt on the surfaces of the sweet potatoes is efficiently removed; and the circulating part realizes circulating filtration of the cleaning liquid through a screen, a backflow box and a nozzle, so that water resources are saved. The lifting part transfers the cleaned sweet potatoes through a transmission belt and a lifting plate, the sorting part adopts a three-stage sorting layer and a guide structure, and small fruits, medium fruits and large fruits are automatically and accurately sorted according to the size difference. The equipment integrates gas-liquid collaborative cleaning, resource recycling and intelligent sorting functions, has the advantages of high cleaning efficiency, excellent sorting precision, low sweet potato damage rate and the like, and is suitable for large-scale application of the sweet potato processing industry.

Description

Technical Field

[0001] The present invention relates to the field of sweet potato processing, and particularly to an integrated machine for cleaning and sorting sweet potatoes. Background Art

[0002] As an important crop, the cleaning and sorting processes of sweet potatoes before processing directly affect product quality and production efficiency. Traditional cleaning methods mostly use manual or simple mechanical processing, which have problems such as low efficiency, serious waste of water resources, and unsatisfactory cleaning effects.

[0003] Manual cleaning is not only time-consuming and laborious, but also difficult to completely remove the sediment and impurities on the surface of sweet potatoes; while existing mechanical cleaning equipment often relies on high-pressure water flow scouring, which is easy to cause damage to the skin of sweet potatoes, affecting appearance and storage period.

[0004] In addition, the sorting process after cleaning mostly relies on manual screening, with low classification accuracy and high labor intensity, and it is difficult to meet the requirements of large-scale production.

[0005] In the prior art of using mechanical equipment to achieve the cleaning and sorting of sweet potatoes, some cleaning equipment introduces a circulating water system, but the filtration and circulation efficiency of the circulating water is insufficient, and sediment is easy to deposit, resulting in equipment blockage and high maintenance costs. The sorting mechanism of the sorting equipment is single in design, and it is difficult to achieve multi-level precise sorting according to the size of sweet potatoes, resulting in limited subsequent processing efficiency. Summary of the Invention

[0006] In order to solve the foregoing technical problems, the present invention provides an integrated machine for cleaning and sorting sweet potatoes, which realizes the double improvement of cleaning efficiency and sorting accuracy through gas-liquid collaborative cleaning, a circulating filtration system and a multi-level sorting structure, thereby solving problems such as waste of water resources, poor cleaning effect, and product damage. Specifically, it is achieved through the following technical solutions.

[0007] The integrated machine for cleaning and sorting sweet potatoes of the present invention includes a first mounting frame, on which a cleaning tank is fixedly installed. A filter plate is inclinedly installed inside the cleaning tank, and the filter plate is provided with leakage holes; A gas pumping part, installed on one side of the cleaning tank, includes an air pump, an air delivery pipe and a plurality of air nozzles, and the air pump is communicated with the air nozzles through the air delivery pipe; A circulating part, installed on the other side of the cleaning tank, includes a circulating pump, a return pipe, a return tank and a nozzle. A screen is provided on the side wall of the cleaning tank, and the cleaning liquid enters the return tank after being filtered by the screen and is driven by the circulating pump to be sprayed back into the cleaning tank through the nozzle; A second mounting frame, inclined and fixed to the side of the cleaning tank, on which a lifting part is installed. The lifting part includes a motor, a driving roller, a transmission belt and a lifting plate, and is used to lift and transfer the cleaned sweet potatoes; The sorting section is located on one side of the filter plate close to the lifting section, and includes a guide plate, a first sorting layer and a second sorting layer. Through the three-level step distribution and the cooperation of the lifting plate and the avoidance groove, the sweet potatoes are sorted by size.

[0008] Preferably, a spraying section is further installed on the second mounting frame. The spraying section includes a spraying pipe, which is installed above the lifting section through a fixing frame and is communicated with a high-pressure water pipe.

[0009] Preferably, the inclined direction of the filter plate is set to be inclined from top to bottom from far away from the second mounting frame to close to the second mounting frame.

[0010] Preferably, the conveyor belt includes a first inclined section, a second inclined section and a horizontal section. The inclination angle of the first inclined section is 75° - 85°, the inclination angle of the second inclined section is 40° - 50°, and the horizontal section is used for horizontally transporting the sorted sweet potatoes.

[0011] Preferably, the first sorting layer and the second sorting layer have the same structure, and both include a receiving plate and a limiting plate. The receiving plate is inclined and is provided with a feed port and an avoidance groove.

[0012] Preferably, the conveyor belt is divided into three conveying channels along the width direction, and the lengths of the lifting plates of each conveying channel increase in sequence.

[0013] Preferably, a sewage discharge valve is provided at the bottom of the cleaning tank; a sorting and packaging device is provided at the end of the horizontal section of the lifting section.

[0014] Preferably, a plurality of through holes are provided on the surface of the spraying pipe.

[0015] After adopting the above technical solutions, the beneficial effects of the present invention are: 1. Continuously introduce gas into the cleaning tank through the air pumping section, and use the combination of air bubbles and the sediment on the surface of the sweet potatoes, combined with the flow scouring of the cleaning liquid in the circulation section, to significantly improve the sediment stripping efficiency; 2. The circulation section realizes the recycling of the cleaning liquid through the sieve, the reflux tank and the nozzle, effectively reducing the consumption of water resources; 3. The sorting section and the lifting section work together. Through the three-level stepped sorting layer, the classification of small fruits, medium fruits and large fruits is automatically completed according to the size of the sweet potatoes, with high sorting accuracy and no need for manual operation; 4. The flowing cleaning liquid and the flexible air flow scouring replace the traditional high-pressure water flow, reducing the skin breakage rate of the sweet potatoes. The lifting plate and the conveyor belt are designed to adapt to sweet potatoes of different sizes, with high stability during the transportation process, further ensuring the product appearance; 5. The functions of cleaning, circulation and sorting are integrated into one, and continuous operation is realized through the segmented conveyor belt, significantly improving the production efficiency and meeting the requirements of large-scale production. Description of the Drawings

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a three-dimensional picture of the sweet potato washing and sorting machine; Figure 2 This is a stereoscopic image of the sweet potato cleaning and sorting machine from the second perspective; Figure 3 This is a longitudinal cross-sectional view of the sweet potato cleaning and sorting machine; Figure 4 for Figure 1 A partial cutaway diagram of some of the components in FIG. Figure 5 for Figure 4 A front view of Figure 6 for Figure 5 An enlarged schematic diagram of some parts in the middle; Figure 7 for Figure 1 Enlarged stereoscopic view of some parts in the middle.

[0018] Description of reference numerals: 101-first mounting frame, 102-cleaning box, 103-filter plate, 104-drain valve, 105-second mounting frame, 110-pump air part, 111-air pump, 112-air pipe, 113-air nozzle, 120-circulation part, 121-circulation pump, 122-return pipe, 123-return box, 124-screen, 125-water pipe, 126-nozzle; 200-lifting part, 201-motor, 202-driving roller, 203-lifting plate, 210-transmission belt, 211-first inclined section, 212-second inclined section, 213-horizontal section; 300-spraying part, 301-fixing frame, 302-spraying pipe; 400 - sorting part, 401 - guide plate, 402 - partition plate, 410 - first sorting layer, 411 - receiving plate, 412 - limiting plate, 413 - feed port, 414 - avoidance groove, 420 - second sorting layer. DETAILED DESCRIPTION

[0019] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0020] The orientation terms appearing in the following description are all the directions shown in the figures and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation, connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] An embodiment of the present invention provides an integrated sweet potato cleaning and sorting machine. See Figure 1 , Figure 2 , which includes a first mounting frame 101. A cleaning box 102 is fixedly installed on the first mounting frame 101. A filter plate 103 is inclinedly installed inside the cleaning box 102. The upper surface of the filter plate 103 is used to hold the sweet potatoes to be cleaned. The sediment on the surface of the sweet potatoes falls into the bottom of the cleaning box 102 through the leakage holes opened on the filter plate 103. A sewage valve 104 is fixedly installed at the bottom of the side of the cleaning box 102 for discharging the sediment accumulated at the bottom of the cleaning box 102 to the outside.

[0022] A gas pumping part 110 is fixedly installed on one side of the cleaning box 102. The gas pumping part 110 includes an air pump 111. The air outlet of the air pump 111 is fixedly communicated with an air delivery pipe 112. The air delivery pipe 112 is fixedly communicated with a plurality of air nozzles 113 distributed on the side of the cleaning box 102 for spraying external gas into the inside of the cleaning box 102 through the air nozzles 113, so that the sweet potatoes are impacted by the air flow during the cleaning process. The sediment on the surface of the sweet potatoes is combined with the air bubbles, and the sediment is brought to the water surface by the buoyancy force, thereby realizing the separation of the sweet potatoes from the sediment.

[0023] A circulation part 120 is fixedly installed on the other side of the cleaning box 102. The circulation part 120 includes a circulation pump 121. The inlet of the circulation pump 121 is fixedly communicated with the bottom of a return box 123 through a return pipe 122. The return box 123 is fixedly installed on the side of the cleaning box 102. The return box 123 is communicated with the inside of the cleaning box 102 through a screen 124 installed on the side wall of the cleaning box 102.

[0024] The outlet of the circulation pump 121 is fixedly connected to a number of nozzles 126 through a water delivery pipe 125, and the number of nozzles 126 are fixedly installed on the side wall of the cleaning tank 102.

[0025] The cleaning liquid in the cleaning tank 102 enters the reflux tank 123 after preliminary sediment filtration through the screen 124. The reflux tank 123 pumps the cleaning liquid back into the cleaning tank 102 through the reflux pipe 122, the circulation pump 121, the water delivery pipe 125 and a number of nozzles 126, realizing the circulating flow of the cleaning liquid.

[0026] When the sweet potatoes are soaked in the cleaning tank 102, through the circulating flow of the cleaning liquid, the sediment and impurities on the surface of the sweet potatoes can be washed off more effectively, so that the cleaning task can be completed faster and the cleaning efficiency can be improved.

[0027] In addition, using flowing cleaning liquid to clean sweet potatoes can reduce the mechanical damage of sweet potatoes during the cleaning process and improve the appearance and quality of sweet potato products.

[0028] In this embodiment, the gas pumping part 110 always injects gas into the cleaning tank 102, and the circulation part 120 realizes the circulating flow of the cleaning liquid in the cleaning tank 102. The two are combined to achieve the rapid cleaning of sweet potatoes.

[0029] As a further explanation of the above embodiment, see Figures 1 to 6 , a second mounting frame 105 is fixedly installed on the side of the cleaning tank 102. The second mounting frame 105 is inclined. A lifting part 200 and a spraying part 300 are installed on the second mounting frame 105. The lifting part 200 is used to lift and transfer the sweet potatoes after cleaning upwards, and the spraying part 300 is used to further wash the sweet potatoes during the lifting and transfer process of the sweet potatoes.

[0030] A sorting part 400 is installed above the position of the filter plate 103 close to the bottom of the lifting part 200. The sorting part 400 and the lifting part 200 are jointly used to complete the sorting of sweet potatoes.

[0031] Among them, the second mounting frame 105 is inclined along the direction from far away from the cleaning tank 102 to close to the cleaning tank 102 from top to bottom.

[0032] Among them, the filter plate 103 is inclined along the direction from far away from the second mounting frame 105 to close to the second mounting frame 105 from top to bottom. The inclination direction of the filter plate 103 makes the sweet potatoes after cleaning concentrated on one side of the cleaning tank 102 close to the second mounting frame 105, which is convenient for the lifting part 200 to complete the lifting and transfer of sweet potatoes.

[0033] As Figure 1As shown in the figure, the spraying part 300 includes a fixing frame 301 and a spraying pipe 302. A plurality of spraying pipes 302 are installed on the second mounting frame 105 through the fixing frame 301. The spraying pipes 302 are communicated with a high-pressure water pipe, and a plurality of through holes are formed in the spraying pipes 302. The plurality of spraying pipes 302 are located above the lifting part 200.

[0034] When the sweet potatoes are lifted upward along the second mounting frame 105 under the action of the lifting part 200, the spraying pipes 302 spray water outward to complete the further washing of the sweet potatoes.

[0035] As Figures 3 to 6 shown in the figure, the lifting part 200 includes a motor 201. The motor 201 is drivingly connected to a plurality of driving rollers 202. A transmission belt 210 is wound around the driving rollers 202. The rotation of the driving rollers 202 drives the circumferential movement of the transmission belt 210. A plurality of lifting plates 203 are fixedly installed on the outer surface of the transmission belt 210 along its width direction for lifting the sweet potatoes upward, so as to complete the lifting and transfer of the sweet potatoes.

[0036] Among them, the transmission belt 210 includes three distribution sections: a first inclined section 211, a second inclined section 212, and a horizontal section 213. The first inclined section 211 is located at the bottom of the transmission belt 210 and has the largest inclination angle, preferably 75° - 85°. The first inclined section 211 and the sorting part 400 cooperate to complete the sorting of the sweet potatoes.

[0037] The second inclined section 212 is located in the middle of the transmission belt 210 and has an inclination angle of 40° - 50°. The second inclined section 212 is located directly below the spraying part 300, and the further washing of the sweet potatoes is completed at this position.

[0038] The horizontal section 213 is located at the top of the transmission belt 210, and the horizontal section 213 is horizontally arranged. The sweet potatoes are horizontally transferred through the horizontal section 213, and classified packaging treatment is realized according to the sorting structure.

[0039] As a further explanation of the above embodiment, refer to Figure 4 、 Figure 7 , the sorting part 400 includes a guiding plate 401. The guiding plate 401 is fixedly installed on the upper surface of the filter plate 103, and the guiding plate 401 is inclined for guiding the sweet potatoes on the filter plate 103 to one side of the filter plate 103, facilitating the lifting and sorting of the sweet potatoes.

[0040] Above the guiding plate 401, a first sorting layer 410 and a second sorting layer 420 are sequentially installed along the horizontal height. The structures of the first sorting layer 410 and the second sorting layer 420 are the same. The first sorting layer 410 is used for classifying small and medium-sized sweet potatoes, and the second sorting layer 420 is used for classifying medium and large-sized sweet potatoes.

[0041] AsFigure 7 As shown in Figure 7 , the first sorting layer 410 includes a receiving plate 411. The first side of the receiving plate 411 is close to the first inclined section 211. A limiting plate 412 is fixedly installed on the second side of the receiving plate 411. The receiving plate 411 and the limiting plate 412 are perpendicularly arranged. An inlet 413 is formed at one end of the receiving plate 411 away from the second sorting layer 420. A plurality of avoidance grooves 414 are formed on the side of the receiving plate 411 close to the first inclined section 211. A lifting plate 203 that can move along it can be arranged in the avoidance grooves 414.

[0042] Among them, the guide plate 401, the first sorting layer 410, and the second sorting layer 420 are distributed in three - level steps, and their horizontal heights increase in sequence.

[0043] Among them, a plurality of notches are formed on the side of the filter plate 103 close to the first inclined section 211, and their shapes are the same as those of the avoidance grooves 414, which are used to avoid the lifting plate 203 installed on the conveyor belt 210.

[0044] Among them, the receiving plate 411 is inclined, and it is inclined along the direction from top to bottom from near the inlet 413 to far from the inlet 413.

[0045] In this embodiment, the working process of the first inclined section 211 cooperating with the sorting part 400 to realize sweet potato screening is as follows: First of all, after the sweet potatoes are washed, they roll along the filter plate 103 to the side close to the sorting part 400 under the action of gravity. During the rolling process of the sweet potatoes, under the guiding action of the guide plate 401, when they roll to the bottom end of the filter plate 103, they are concentrated on the first side of the cleaning box 102. At this time, when the conveyor belt 210 drives the lifting plate 203 to move, the sweet potatoes concentrated at the bottom end of the filter plate 103 will be lifted upward.

[0046] During the process of the sweet potatoes being lifted, they are placed on the lifting plate 203. The smaller - sized sweet potatoes can be stably placed on the lifting plate 203, and then are sequentially transferred to the first inclined section 211, the second inclined section 212, and the horizontal section 213 to complete the position transfer. If the size of the sweet potato is large, such that its center of gravity exceeds the lifting plate 203, after the lifting plate 203 holds up the sweet potato, the sweet potato is difficult to be stably placed on the lifting plate 203, so it rolls downward. By adjusting the rotation speed of the conveyor belt 210, when the sweet potato rolls downward, it just rolls above the first sorting layer 410. At this time, the sorting of small fruits is completed.

[0047] The sweet potatoes rolling down from above the first sorting layer 410 fall onto the receiving plate 411. Since the receiving plate 411 is inclined, the sweet potatoes on the receiving plate 411 will further roll towards the end away from the feed inlet 413. When this part of the sweet potatoes rolls into the blocking avoidance groove 414, they will be lifted again by the passing lifting plate 203. Similarly, the sweet potatoes are screened again according to their sizes. At this time, the sweet potatoes that the lifting plate 203 can smoothly lift and transfer are medium-sized fruits.

[0048] And so on, the large fruits are driven to roll above the second sorting layer 420 and then lifted for the third time by the lifting plate 203, and finally complete the transmission after passing through the second inclined section 212 and the horizontal section 213.

[0049] Among them, two sets of partition plates 402 are arranged along the width direction above the conveyor belt 210, dividing the conveyor belt 210 into three conveyor channels in the width direction. The first conveyor channel is aligned with the lower port of the guide plate 401 and is used to convey small fruits. The second conveyor channel is aligned with the first sorting layer 410 and is used to convey medium-sized fruits. The third conveyor channel is aligned with the second sorting layer 420 and is used to convey large fruits.

[0050] Among them, the lengths of the lifting plates 203 installed in the first conveyor channel, the second conveyor channel, and the third conveyor channel increase in sequence, so as to meet the lifting and transfer requirements of sweet potatoes of different sizes.

[0051] According to the embodiments of the present invention as described above, these embodiments do not elaborate on all the details and do not limit the invention to only the specific embodiments. Obviously, according to the above description, many modifications and variations can be made. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can make good use of the present invention and its modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Sweet potato cleaning and sorting machine, characterized in that: include: A first mounting frame (101) on which a cleaning box (102) is fixedly mounted, a filter plate (103) being obliquely mounted inside the cleaning box (102), and the filter plate (103) being provided with a leakage hole; The air pump unit (110) is installed on one side of the cleaning box (102), and comprises an air pump (111), an air delivery pipe (112), and a plurality of air nozzles (113). The air pump (111) is connected to the air nozzles (113) via the air delivery pipe (112); The circulation unit (120) is installed on the other side of the cleaning box (102), and comprises a circulation pump (121), a return pipe (122), a return box (123) and a nozzle (126). A screen (124) is provided on the side wall of the cleaning box (102). The cleaning liquid enters the return box (123) after being filtered by the screen (124), and is driven by the circulation pump (121) to be sprayed back to the cleaning box (102) through the nozzle (126); A second mounting frame (105) is fixed obliquely to the side of the cleaning box (102), and a lifting unit (200) is mounted thereon. The lifting unit (200) comprises a motor (201), a driving roller (202), a transmission belt (210) and a lifting plate (203), and is used to lift and transport the cleaned sweet potatoes; The sorting section (400) is arranged on a side of the filter plate (103) close to the lifting section (200), and comprises a guide plate (401), a first sorting layer (410) and a second sorting layer (420). The sweet potatoes are graded and sorted according to size through the three-step distribution and the cooperation between the lifting plate (203) and the avoidance groove (414).

2. The sweet potato cleaning and sorting integrated machine according to claim 1, characterized in that: A spraying portion (300) is also mounted on the second mounting frame (105), the spraying portion (300) comprising a spraying pipe (302), the spraying pipe (302) being mounted above the lifting portion (200) via a fixing frame (301) and being in communication with a high-pressure water pipe.

3. The sweet potato cleaning and sorting integrated machine according to claim 1, characterized in that: The filter plate (103) is arranged to be inclined from top to bottom from away from the second mounting frame (105) to close to the second mounting frame (105).

4. The sweet potato cleaning and sorting integrated machine according to claim 1, characterized in that: The transmission belt (210) comprises a first inclined section (211), a second inclined section (212) and a horizontal section (213); the first inclined section (211) has an inclination angle of 75° to 85°, the second inclined section (212) has an inclination angle of 40° to 50°, and the horizontal section (213) is used for horizontally transporting sorted sweet potatoes.

5. The sweet potato cleaning and sorting integrated machine according to claim 1, characterized in that: The first sorting layer (410) and the second sorting layer (420) have the same structure, both comprising a receiving plate (411) and a limiting plate (412); the receiving plate (411) is arranged at an angle and is provided with a feed port (413) and an avoidance groove (414).

6. The sweet potato cleaning and sorting integrated machine according to claim 1, characterized in that: The transmission belt (210) is divided into three transmission lanes along the width direction, and the length of the lifting plate (203) of each transmission lane increases successively.

7. The sweet potato cleaning and sorting integrated machine according to claim 1, characterized in that: A sewage discharge valve (104) is provided at the bottom of the cleaning box (102); and a sorting and packaging device is provided at the end of the horizontal section (213) of the lifting part (200).

8. The sweet potato cleaning and sorting integrated machine according to claim 2, characterized in that: The surface of the spray pipe (302) is provided with a plurality of through holes.

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