Grading and impurity removing device for green nuts

Abstract

The utility model provides a green husk nut grading and impurity removing device which comprises a rack, an impurity removing mechanism and a grading mechanism. The impurity removing mechanism and the grading mechanism are installed on the rack, and the end of the impurity removing mechanism is in butt joint with the end of the grading mechanism. The impurity removal mechanism comprises a filter sieve and a negative pressure suction device, the filter sieve is of a semicircular cylinder structure and is fixedly mounted on the rack, and sieve holes for filtering out impurities are uniformly formed in the filter sieve; the suction end of the negative pressure suction device is mounted on the rack and is positioned above the filter sieve; the grading mechanism comprises a drum screen, a supporting shaft and a motor; the two supporting shafts are rotationally installed on the machine frame in parallel, the drum screen is supported on the supporting shafts in a rolling mode, the nut impurity removing efficiency and cleanliness are improved, meanwhile, the grading sections are arranged in the drum screen, nuts of different sizes and grades are filtered out from the different grading sections respectively, and therefore the nut impurity removing efficiency is improved. And therefore, the nuts with different sizes can be quickly graded, and the nut grading efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut processing technical field, belong to a kind of green skin nut grading and impurity removal device. BACKGROUND

[0002] Green fruit just picked from the tree is transported back to the processing workshop, which contains impurities such as leaves and sand. These impurities need to be removed before further processing. Currently, when nuts are decontaminated, nuts and impurities are separated by manual operation. The separated nuts also need to be sorted by manual operation. The nuts are divided into different sizes. The manual decontamination and sorting method wastes a lot of manpower and time, and the operation efficiency is low. UTILITY MODEL CONTENTS

[0003] To overcome the problems in the background art, the utility model provides a green skin nut grading and impurity removal device to solve the technical problem that the current nuts are decontaminated by manual operation, the separated nuts need to be sorted by manual operation, the nuts are divided into different sizes, the manual decontamination and sorting method wastes a lot of manpower and time, and the operation efficiency is low.

[0004] To achieve the above-mentioned purpose, the utility model realizes the following technical scheme:

[0005] A green skin nut grading and impurity removal device includes a rack 1, a decontamination mechanism 2, and a grading mechanism 3. The decontamination mechanism 2 and the grading mechanism 3 are installed on the rack 1. The end of the decontamination mechanism 2 is connected to the end of the grading mechanism 3. The decontamination mechanism 2 includes a filter screen 4 and a negative pressure suction device 5. The filter screen 4 is a semi-cylindrical structure and is fixedly installed on the rack 1. The filter screen 4 is uniformly provided with screen holes for filtering out impurities. The suction end of the negative pressure suction device 5 is installed on the rack 1 above the filter screen 4. The grading mechanism 3 includes a roller screen 6, a support shaft 7, and a motor 8. The support shaft 7 is provided with two parallel rotating shafts installed on the rack 1. The roller screen 6 is supported on the support shaft 7. The motor 8 is installed on the rack 1 and is in transmission connection with the support shaft 7. The roller screen 6 is provided with multiple grading sections 61 for separating nuts of different sizes. One end of the roller screen 6 is connected to the filter screen 4. The inner wall of the roller screen 6 is provided with helical blades 62 for pushing the nuts forward. One end of the helical blades 62 extends into the filter screen 4 and is in gap connection with the inner wall of the filter screen 4.

[0006] Preferably, the sidewall of each grading section 61 is provided with helical grading grooves 63 of different widths. The widths of the grading grooves 63 in different grading sections 61 gradually increase from the feeding end of the roller screen 6.

[0007] Preferably, the negative pressure suction device 5 comprises a suction cover 51, a suction pipe 52, a storage tank 53, and a negative pressure pump 54; the suction cover 51 is installed above the filter screen 4, the suction pipe 52 is connected at the top of the suction cover 51 and the top of the storage tank 53 respectively, and the top of the storage tank 53 is connected with the negative pressure pump 54 through a pipeline.

[0008] Preferably, the storage tank 53 is provided with a partition plate 55 for separating the inside of the storage tank 53 into two spaces, and the partition plate 55 is uniformly provided with mesh holes.

[0009] Preferably, each grading section 61 is provided with a discharge hopper 9 below for discharging nuts of different sizes.

[0010] Preferably, the rack 1 is provided with a feeding hopper 10 at one end, which is connected to the end of the filter screen 4.

[0011] The beneficial effects of the utility model are as follows: the filter screen can filter out the impurities mixed in the nuts, and the negative pressure suction device can suck away the lighter and larger impurities such as leaves, so that the impurities in the nuts are completely eliminated, the efficiency and cleanliness of the nut impurity removal are improved, and the efficiency of the nut grading is improved by filtering out nuts of different sizes from different grading sections. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a three-dimensional structure schematic view of the utility model.

[0013] Figure 2 is a structure schematic view of the impurity removal mechanism.

[0014] Figure 3 is a structure schematic view of the negative pressure suction device.

[0015] Figure 4 is a structure schematic view of the grading mechanism.

[0016] Figure 5 is a structure schematic view of the discharge hopper.

[0017] Figure 6 is an internal structure schematic view of the storage tank.

[0018] Figure 7 is a structure schematic view of the drum screen. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and beneficial effects of the utility model more clear, the preferred embodiments of the utility model will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technicians.

[0020] As Figures 1-7 shown, the utility model provides a green skin nut grading and impurity removing device, including frame 1, impurity removing mechanism 2, grading mechanism 3, impurity removing mechanism 2 and grading mechanism 3 are installed on frame 1, and the end of impurity removing mechanism 2 is docked in the end of grading mechanism 3, impurity removing mechanism 2 includes filter screen 4, negative pressure suction device 5, the filter screen 4 is semicircular cylinder structure, and is fixedly installed on frame 1, and the filter screen 4 is uniformly provided with the screen hole that filters out impurity, the suction end of negative pressure suction device 5 is installed on frame 1 and is located above filter screen 4, grading mechanism 3 includes cylinder screen 6, support shaft 7, motor 8, the support shaft 7 is provided with two, and is rotatably installed on frame 1, cylinder screen 6 rolls and supports on support shaft 7, and motor 8 is installed on frame 1 and is transmission connection with support shaft 7, cylinder screen 6 is provided with multiple grading sections 61 that separate nuts of different size levels, one end of cylinder screen 6 is docked with filter screen 4, the inner wall of cylinder screen 6 is provided with helical blade 62 that propels nut forward, one end of helical blade 62 extends into filter screen 4 and is gap fit with the inner wall of filter screen 4. When impurity removing and grading of nut, the nut picked up from the ground is placed into filter screen 4, motor 8 drives support shaft 7 to rotate, thereby makes cylinder screen 6 rotate, and helical blade 62 in cylinder screen 6 rotates, thereby drives nut to move forward in filter screen 4, and impurity is filtered out from the screen hole of filter screen 4, simultaneously, negative pressure suction device 5 sucks away lighter and larger impurities such as leaves, thereby removes the impurity in nut, and helical blade 62 pushes the nut of removing impurity into cylinder screen 6, and when nut passes each grading section 61, separates nuts of different size levels in turn, from realizing nut grading, the utility model can filter out the impurity mixed in nut through the filter screen 4 set up, and the lighter and larger impurities such as leaves are sucked away through negative pressure suction device 5, thereby makes the impurity in nut eliminate cleanly, improves the efficiency and cleanliness of nut impurity removing, simultaneously, separates nuts of different size levels from different grading sections 61 through the grading section 61 set up in cylinder screen 6, thereby realizes grading nuts of different size rapidly, improves the efficiency of nut grading.

[0021] The sidewall of different grading sections 61 is provided with helical grading groove 63 of different width, and the width of grading groove 63 in different grading sections 61 gradually increases from the feed end of cylinder screen 6. The nut of removing impurity moves forward under the pushing of helical blade 62 in cylinder screen 6, and when passing the first grading section 61, smaller nuts are filtered out from grading groove 63, thereby realizes separating smaller nuts, and when passing the next grading section 61, larger nuts are filtered out from wider grading groove 63, and nuts pass grading groove 63 of different width in turn, thereby grades nuts according to size in turn, improves the efficiency of nut grading.

[0022] The negative pressure suction device 5 comprises a suction cover 51, a suction pipe 52, a storage tank 53, and a negative pressure pump 54. The suction cover 51 is installed above the filter screen 4. The two ends of the suction pipe 52 are connected to the top of the suction cover 51 and the top of the storage tank 53 respectively. The top of the storage tank 53 is connected to the negative pressure pump 54 through a pipeline. The negative pressure pump 54 generates suction force in the suction cover 51, so that the leaves are sucked into the storage tank 53 through the suction pipe 52 and stored therein, which facilitates unified processing and removal of lighter impurities such as leaves.

[0023] The storage tank 53 is provided with a partition plate 55 that divides the inside of the storage tank 53 into two spaces. The partition plate 55 is uniformly provided with mesh holes. When the leaves are sucked into the storage tank 53, they are blocked by the partition plate 55, so that the leaves are prevented from being sucked into the negative pressure pump 54. The leaves are stored in the storage tank 53, and the mesh holes on the partition plate 55 facilitate air circulation and form negative pressure.

[0024] Each classification section 61 is provided below with a discharge hopper 9 for facilitating discharge of nuts of different sizes. The nuts of different grades separated by the classification groove 63 are discharged through the discharge hopper 9 and collected, which improves the processing efficiency of the entire nut processing flow.

[0025] The end of the rack 1 is provided with a feeding hopper 10 that is docked with the end of the filter screen 4. The feeding hopper 10 facilitates feeding of nuts into the filter screen 4 for impurity filtering, preventing the nuts from spilling.

[0026] Working process:

[0027] When impurities are removed and classified from the nuts, the nuts picked from the ground are put into the feeding hopper 10, and the nuts automatically slide into the filter screen 4. The motor 8 drives the support shaft 7 to rotate, so that the drum screen 6 rotates, and the spiral blade 62 in the drum screen 6 rotates to drive the nuts to move forward in the filter screen 4. The impurities are filtered out from the screen holes of the filter screen 4, and the lighter and larger impurities such as leaves are sucked away by the negative pressure suction device 5, so that the impurities in the nuts are removed. The spiral blade 62 pushes the nuts with removed impurities into the drum screen 6. The nuts with removed impurities move forward under the pushing of the spiral blade 62 in the drum screen 6. When passing through the first classification section 61, the smaller nuts are filtered out from the classification groove 63, so that the smaller nuts are separated. When passing through the next classification section 61, the larger nuts are filtered out from the wider classification groove 63. The nuts successively pass through the classification grooves 63 of different widths, are discharged from the discharge hopper 9, and are collected, so that the nuts are classified according to size.

[0028] Finally, it is explained that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limited, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A device for grading and removing impurities from green in-shell nuts, characterized in that: The utility model relates to a kind of nut separating and grading machine, including rack (1), impurity removing mechanism (2), grading mechanism (3);The impurity removing mechanism (2) and grading mechanism (3) are installed on rack (1), and the end of impurity removing mechanism (2) is butt joint in the end of grading mechanism (3);The impurity removing mechanism (2) includes filter screen (4), negative pressure suction device (5), the filter screen (4) is semicylindrical structure, fixedly installed on rack (1), and filter screen (4) is evenly provided with the screen hole that impurity is filtered out;The suction end of negative pressure suction device (5) is installed on rack (1), located above filter screen (4);The grading mechanism (3) includes cylinder screen (6), support shaft (7), motor (8);The support shaft (7) is provided with two, and is rotatably installed on rack (1) mutually in parallel, and cylinder screen (6) is supported on support shaft (7) and rolls, and motor (8) is installed on rack (1), and is transmission connection with support shaft (7);The cylinder screen (6) is provided with multiple grading sections (61) that different size levels of nut are separated;One end of cylinder screen (6) is butt joint with filter screen (4);The inner wall of cylinder screen (6) is provided with helical blade (62) that nut is pushed forward, and one end of helical blade (62) extends into filter screen (4), and is gap matched with the inner wall of filter screen (4).

2. A device for grading and removing impurities from green in-shell nuts according to claim 1, characterized in that: Different grading sections (61) side wall is provided with different width helical grading groove (63), and the width of grading groove (63) in different grading sections (61) gradually increases from the feeding end of cylinder screen (6).

3. A device for grading and removing impurities from green in-shell nuts according to claim 1 or 2, characterized in that: The negative pressure suction device (5) includes suction cover (51), suction pipe (52), storage tank (53), negative pressure pump (54);The suction cover (51) is installed above filter screen (4), and suction pipe (52) two ends are connected at suction cover (51) top and storage tank (53) top respectively, and the top of storage tank (53) is connected with negative pressure pump (54) by pipeline.

4. A green nut grading and impurity removing device according to claim 3, characterized in that: The storage tank (53) is provided with partition plate (55) that separates the inside of storage tank (53) into left and right two spaces, and the partition plate (55) is evenly provided with mesh.

5. A green nut grading and impurity removing device according to claim 4, characterized in that: Each grading section (61) is provided with discharge hopper (9) below, to facilitate the nut of different size levels to discharge.

6. A green nut grading and impurity removing device according to claim 1, characterized in that: The rack (1) end is installed with the feeding hopper (10) that is butt joint in the end of filter screen (4).

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