CN219129935U - Screening machine is used in nut production - Google Patents

Abstract

The utility model relates to a nut screening technical field specifically discloses a screening machine for nut production, it includes the box, the top of box is provided with the feed inlet, the bottom is provided with the discharge gate, top-down is provided with first order screening mechanism and second screening mechanism in the box; the first-stage screening mechanism comprises a conveying belt for conveying nuts, a chip removal main rail arranged at one end, close to the conveying belt, in the box body, and a fence arranged between the chip removal main rail and the conveying belt, wherein a first falling opening for nut blanking is formed between the conveying belt and the fence; the box body is internally provided with a blowing component used for blowing nuts falling from the first falling opening at the first falling opening. This application has when nut screening, can be to the convenient effect of sieving out of filiform, flocculent impurity in it.

Description

Screening machine is used in nut production

Technical Field

The application relates to the technical field of nut screening, in particular to a screening machine for nut production.

Background

Nuts are classified into closed fruits, the peel of the nuts is hard, one or more seeds such as chestnut, almond, hawaii nut and the like are contained in the nuts, the nuts are essence parts of plants, impurities in the nuts need to be removed before the nuts are seasoned and packaged by nut manufacturers, and the impurities in the nuts often comprise leaves, branches, hair, floccules, dust, broken stone particles and the like.

Most of the impurity removal devices for nuts screen through multistage screens, the diameter of the screen holes in the screens is smaller than the minimum diameter of nut particles, and most of impurities in nuts fall from the screen holes after the screens are rocked, so that the nuts are reserved above the screens.

To the relevant technique among the above-mentioned, the screen cloth is better to rubble grain and other granular impurity screening effect, but, filiform impurity (like hair) that mixes in the nut, flocculent impurity (like plant silk wadding) can adhere to the nut periphery, shakes through the screen cloth and hardly clears up it, even, these filiform, flocculent impurity can twine even, block the screen cloth sieve mesh, influence follow-up screening work, finally lead to the nut edulcoration effect not good, screening efficiency is low.

Disclosure of Invention

In order to improve the problem that filiform, flocculent impurity is difficult to clear up when nut sieves, this application provides a sieve separator for nut production.

The application provides a screening machine for nut production adopts following technical scheme:

the screening machine for nut production comprises a box body, wherein a feed inlet is formed in the top of the box body, a discharge outlet is formed in the bottom of the box body, and a first-stage screening mechanism and a second-stage screening mechanism are arranged in the box body from top to bottom;

the first-stage screening mechanism comprises a conveying belt for conveying nuts, a chip removal main rail arranged at one end, close to the conveying belt, in the box body, and a fence arranged between the chip removal main rail and the conveying belt, wherein a first falling opening for nut blanking is formed between the conveying belt and the fence;

the box body is internally provided with a blowing component used for blowing nuts falling from the first falling opening.

Through adopting above-mentioned technical scheme, conveyer belt in the one-level screening mechanism is shared the nut and comes, when nut transportation arrives first drop mouth department, and the subassembly of blowing blows off wind blows off, and the batting impurity that mix with in the nut blows off to want to cut the fence department, and impurity can fall from the chip removal main track, realizes the clearance to the batting, sets up two-stage screening mechanism in the box in addition, further improves batting cleaning efficiency.

Optionally, the blowing component comprises a blowing cover obliquely arranged on the inner side of the top wall of the box body towards the direction of the fence, a fan fixedly arranged in the top wall of the box body, and an air pipe for conveying air generated at the fan to the fan cover;

a first sieve plate is arranged at the lower part of the conveying belt, and a second falling opening for nuts to fall down is formed between the end part of the first sieve plate, which is far away from the fence, and the inner wall of the box body; a plurality of scrapers are fixedly connected on the conveyor belt at intervals, and the other end parts of the scrapers are movably propped against the upper plate surface of the first sieve plate;

the box body is internally provided with a transmission component for driving the conveyer belt to move.

Through adopting above-mentioned technical scheme, the fan produces the amount of wind and conveys to the blast cap department through the tuber pipe, along with drive assembly drives the conveyer belt and removes, and the scraper blade on the conveyer belt spreads out the nut, and when the nut was carried to first drop mouth department, the wind-force that the blast cap produced was blown the batting of lighter quality to the chip removal main track, and the nut quality is heavier, and can not fall to in the chip removal main track under the interception effect of interception fence; the scraper blade on the conveyer belt scrapes nuts that will drop to the first sieve from first falling mouth department to second falling mouth department to can set up the screening work of second grade screening mechanism to nuts.

Optionally, the transmission assembly includes at least two rotating rolls that rotate to erect in the box, is used for driving one of them the first driving piece that the rotating roll rotated, wherein two the rotating rolls rotate and set up the both ends of conveyer belt.

Through adopting above-mentioned technical scheme, first driving piece drives the commentaries on classics roller and rotates, under frictional force effect, changes roller drive conveyer belt and removes to drive scraper blade to remove, the scraper blade scrapes the nut on with first sieve, can realize the position movement of nut.

Optionally, the bottom of the box body is vertically fixedly connected with a first partition board and a second partition board, and the discharge hole is formed between the first partition board and the second partition board;

the second-stage screening mechanism comprises a second screen plate which is inclined towards the discharge hole and is arranged in the box body in a lifting and shaking mode, and a removing assembly which is used for removing filiform impurities in nuts sliding above the second screen plate in a hooking mode;

the higher tip of second sieve is located the below of second mouth that falls, the box with be provided with between the second sieve and be used for realizing that the nut is fallen the time drive second sieve goes up and down the drive assembly that shakes.

By adopting the technical scheme, the first partition plate and the second partition plate and the bottom wall of the box body jointly enclose a discharge hole for discharging nuts, the first partition plate and the side wall of the box body form a space for storing impurities below the screen of the second screen plate, and the second partition plate and the side wall of the box body form a space for storing impurities falling on the main chip removal rail correspondingly; setting a driving assembly to enable the second sieve plate to have a shaking effect, so that the screening effect of granular impurities in nuts is improved; the rejecting component is further arranged for rejecting filiform impurities such as hairs in nuts at the second-stage screening mechanism.

Optionally, the rejecting assembly comprises a rotating rod rotatably erected in the box body, and rotating teeth fixedly connected to the periphery of the rotating rod and movably abutted to the top wall of the second sieve plate, and a second driving piece for driving the rotating rod to rotate is arranged on the box body;

the inner wall of the box body is fixedly provided with a chip removal sub-track in the lower inclined mode of the first screen plate, the chip removal sub-track is inclined towards the direction of the chip removal main track, the bottom end portion of the fence is extended to be fixedly connected with the top wall of the second partition plate, and when the rotating rod rotates, the rotating teeth are abutted against the top wall of the second screen plate to rotate to be located above the chip removal sub-track.

Through adopting above-mentioned technical scheme, the second driving piece drives the bull stick and rotates, and the bull stick drives changeing the tooth and rotates, changes between the tooth stretches into a plurality of nuts that drop to the second sieve, along with changeing the rotation of tooth and can hooking out the filiform impurity between the nut, when changeing the tooth and continuing to rotate to chip removal branch track upper portion, under the action of gravity, filiform impurity can drop on the chip removal branch track and follow chip removal main track department and discharge.

Optionally, the driving assembly includes a slider fixedly connected to an end of the second screen plate, and a spring with two ends respectively fixedly connected between a bottom wall of the slider and the box, a sliding groove adapted to sliding of the slider is vertically formed in an inner wall of the box, and an end, close to the partition, of the second screen plate is movably abutted to a top wall of the first partition;

a shielding component for shielding the notch of the chute is arranged in the box body.

By adopting the technical scheme, when a plurality of nuts fall to the upper part of the sieve plate from the second falling opening at the same time, the gravity borne by the second sieve plate is continuously changed, so that the spring is pressed, and the sliding block moves downwards; when nut from the second sieve other end landing, second sieve gravity lightens to the spring can appear resetting of certain degree, makes the second sieve can rise, and consequently, the effect of continuous shake can appear in the second sieve, replaces the manual work in proper order to the rocking of sieve, improves its filterable performance to nut.

Optionally, the shielding assembly comprises a first organ cover, wherein two ends of the first organ cover are fixedly connected with the top wall of the sliding chute and the top wall of the sliding block respectively, and two ends of the second organ cover are fixedly connected with the bottom wall of the sliding block and the bottom wall of the sliding chute respectively.

Through adopting above-mentioned technical scheme, the in-process that the slider slided from top to bottom, first organ cover and second organ cover shelter from spout notch department in top and bottom department of slider respectively for nut and impurity all can not fall into in the spout, thereby can not influence the upper and lower slip of slider.

Optionally, the bottom of second sieve slides and installs the chip removal steamer tray one, the bottom of chip removal main track slides and installs the chip removal steamer tray two, chip removal steamer tray one with the lateral wall of chip removal steamer tray two all rigid coupling has the handle.

Through adopting above-mentioned technical scheme, set up the impurity that one box chip removal steamer tray two pairs of chip removal main track fell and the impurity that the second sieve was sieved and be collected to remove impurity and drift everywhere after sieving from, improve the operational environment in the screening process.

Optionally, the first sieve plate and the second sieve plate are provided with sieve holes with the aperture smaller than the minimum diameter of nuts, and the sieve holes of the first sieve plate are arranged on the vertical overlapping section of the chip removal split rail.

Through adopting above-mentioned technical scheme, the sieve mesh of first sieve is offered on dividing the vertical coincidence section of track with the chip removal to the impurity that first sieve sifted falls chip removal and divides the track top and not falls the second sieve top, has reduced the phenomenon that impurity repeatedly sieves.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the nuts are split by the conveying belt, when the nuts are transported to the first falling port, the air blowing component blows air, and the flock impurities mixed in the nuts are blown to the position where the fence is cut off, so that the impurities can fall from the main chip removal track, and the flock is cleaned;

2. the first partition plate and the second partition plate form a discharge hole for discharging nuts together with the bottom wall of the box body, the first partition plate and the side wall of the box body form a space for storing impurities below the screen of the second screen plate, and the second partition plate and the side wall of the box body form a space for storing the impurities falling on the chip removal main rail correspondingly;

3. the second driving piece drives the bull stick to rotate, and the bull stick drives changeing the tooth and rotates, changeing between tooth stretches into a plurality of nuts that drop to the second sieve, along with changeing the rotation of tooth and can hooking out filiform impurity between the nut, when changeing the tooth and continuing to rotate to chip removal and divide track upper portion, under the action of gravity, filiform impurity can drop on the chip removal divides the track and follow chip removal main track department and discharge.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view taken along line A-A in fig. 1.

Fig. 3 is a schematic diagram of the cooperation of the screening mechanism and the secondary screening mechanism in the embodiment of the present application.

Reference numerals: 1. a case; 10. a support leg; 11. a feed inlet; 12. a discharge port; 121. an inclined surface; 13. a first partition board; 131. a chip removing drawer I; 1311. a handle; 14. a second partition board; 141. chip removal drawer II; 15. a chute; 2. a first-stage screening mechanism; 21. a conveyor belt; 211. a first drop port; 212. a scraper; 22. a chip removal main rail; 23. cutting a fence; 231. railing; 24. a first screen plate; 241. a sieve pore; 242. a second drop port; 3. a secondary screening mechanism; 31. a second screen plate; 32. chip removal and orbit division; 4. a transmission assembly; 41. a rotating roller; 42. a first driving member; 5. a blowing assembly; 51. a blowing hood; 52. a blower; 53. an air duct; 6. removing the components; 61. a rotating rod; 62. rotating teeth; 63. a second driving member; 7. a drive assembly; 71. a slide block; 72. a spring; 8. a shielding assembly; 81. a first organ cover; 82. a second organ cover; 9. and a conveyor belt.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses screening machine is used in nut production.

Referring to fig. 1 and 2, the screening machine for nut production includes a box 1, a first-stage screening mechanism 2 and a second-stage screening mechanism 3 for screening impurities from nuts are arranged in the box 1 from top to bottom, a feed inlet 11 is arranged at the top of the box 1, a discharge outlet 12 is arranged at the bottom of the box 1, a supporting leg 10 for fixedly supporting the box 1 is arranged outside the box 1, and a conveying belt 9 for conveying nuts after screening is arranged between the supporting legs 10 at the lower part of the discharge outlet 12.

The first-stage screening mechanism 2 comprises a conveying belt 21 for conveying nuts, a chip removal main rail 22 arranged at one end, close to the conveying belt 21, in the box body 1, and a fence cutting 23 arranged between the chip removal main rail 22 and the conveying belt 21, wherein a transmission assembly 4 for driving the conveying belt 21 to move is arranged in the box body 1, and a first screen plate 24 is fixedly connected to the lower portion of the conveying belt 21 on the inner wall of the box body 1.

Referring to fig. 2 and 3, the transmission assembly 4 includes at least two rollers 41 rotatably mounted in the box 1, and a first driving member 42 for driving one of the rollers 41 to rotate, where the number of rollers 41 is two, and the two rollers 41 are rotatably disposed at two ends of the conveyor belt 21 and tighten the conveyor belt 21, and drive the conveyor belt 21 to move under the action of friction force, so as to achieve the effect of transporting nuts; the first driving member 42 is configured as a first motor, an output end of the first motor is coaxially and fixedly connected with one of the rotating rollers 41, and a housing of the first motor is fixedly mounted on an outer side wall of the case 1.

A first falling opening 211 for nut blanking is formed between the conveying belt 21 and the interception bar 23, the first falling opening 211 is positioned at the end part far away from the feeding opening 11 of the box body 1, a plurality of scraping plates 212 are fixedly connected to the conveying belt 21 at intervals, and the scraping plates 212 are obliquely arranged according to the conveying direction of the conveying belt 21.

The first sieve plate 24 is provided with a sieve mesh 241 with a hole diameter smaller than the minimum diameter of nuts, a second falling opening 242 for nuts to fall is formed between the end part of the first sieve plate 24 far away from the interception bar 23 and the inner wall of the box 1, that is, the second falling opening 242 is located at the end far away from the first falling opening 211, when the scraper 212 moves to the upper part of the first sieve plate 24 along with the movement of the conveying belt 21, the other end part of the scraper 212 is movably propped against the upper plate surface of the first sieve plate 24, in the embodiment, the end part of the scraper 212 far away from the conveying belt 21 is fixedly connected with a rubber pad, so that the scraping effect on nuts is better when the scraper is propped against the top wall of the first sieve plate 24.

The cutoff bars 23 are provided as a plurality of bars 231 vertically arranged between the conveyor belt 21 and the main chip discharging rail 22, and the distance between adjacent bars 231 is smaller than the minimum particle diameter of nuts.

The box 1 is internally provided with a blowing component 5 for blowing nuts falling from the first falling port 211 at the first falling port 211, the blowing component 5 comprises a blowing cover 51 obliquely arranged on the inner side of the top wall of the box 1 towards the direction of the fence 23, a fan 52 fixedly arranged in the top wall of the box 1 and an air pipe 53 for conveying air generated at the fan 52 to the fan cover, and accordingly, the nuts at the first falling port 211 are conveyed to by the conveying belt 21, flocculent impurities mixed in the nuts are blown to the main chip removal track 22 by the air blown by the blowing cover 51 in the process of paragraph and dispersion, and meanwhile, the fence 23 limits the nuts so that the nuts cannot fall into the main chip removal track 22.

The bottom of the box body 1 is vertically fixedly connected with a first partition plate 13 and a second partition plate 14, the bottom end part of the cutoff bar 23 extends to be fixedly connected with the top wall of the second partition plate 14, the discharge hole 12 is formed between the first partition plate 13 and the second partition plate 14, and an inclined surface 121 which is convenient for nuts to roll off is formed in the inner wall of the discharge hole 12.

Referring to fig. 2 and 3, the secondary screening mechanism 3 includes a second screen plate 31 inclined toward the discharge port 12 and configured in the box 1 in a lifting and shaking manner, a removing assembly 6 for removing filiform impurities in nuts sliding above the second screen plate 31, a chip removing sub-rail 32 inclined and fixed on the lower portion of the first screen plate 24 on the inner wall of the box 1, the chip removing sub-rail 32 inclined toward the chip removing main rail 22, and a screen hole 241 of the first screen plate 24 arranged on a section vertically coinciding with the chip removing sub-rail 32. The bottom of the second sieve plate 31 is slidably provided with a first chip removing drawer 131 for collecting impurities, the bottom end of the chip removing main rail 22 is also slidably provided with a second chip removing drawer 141 for collecting impurities, and the outer side walls of the first chip removing drawer 131 and the second chip removing drawer 141 are fixedly connected with a handle 1311.

Wherein, mesh 241 that the aperture is less than the minimum particle diameter of nut has also been offered on the second sieve 31, reject the subassembly 6 including rotating the bull stick 61 of setting up in box 1 inside, rigid coupling in bull stick 61 periphery and with the commentaries on classics tooth 62 of the roof activity butt of second sieve 31, commentaries on classics tooth 62 is evenly arranged through the body of rod of a plurality of rigid couplings on bull stick 61 periphery wall and is constituteed, and the body of rod is kept away from the tip setting of bull stick 61 and is buckling, the distance between the adjacent body of rod is not greater than the minimum particle diameter of nut, in this embodiment commentaries on classics tooth 62 is provided with six groups along the axial of bull stick 61.

The box 1 is provided with a second driving piece 63 for driving the rotating rod 61 to rotate, the second driving piece 63 is arranged as a second motor, the output end of the second motor is fixedly connected with the rotating rod 61 coaxially, the shell of the second motor is fixedly arranged on the outer side wall of the box 1, when the second motor drives the rotating rod 61 to rotate, the end parts of the rotating teeth 62 are propped against the top wall of the second sieve plate 31 to rotate above the chip removing sub-track 32, so that filiform impurities on the rotating teeth can fall above the chip removing sub-track 32 and finally fall into the chip removing main track 22.

In addition, referring to fig. 2 and 3, in order to more be convenient for the nut to drop from second sieve 31, improve the screening effect of second sieve 31 to the nut simultaneously, the higher tip of second sieve 31 is located the below of second whereabouts mouth 242, be provided with between box 1 and the second sieve 31 and be used for realizing the drive second sieve 31 lift and shake's when nut falls drive assembly 7, drive assembly 7 includes the slider 71 of rigid coupling at second sieve 31 tip, both ends rigid coupling respectively between slider 71 diapire and box 1 spring 72, box 1 inner wall has seted up along vertical spout 15 with slider 71 slip adaptation.

Similarly, the bottom of the lower end of the second sieve plate 31 is also provided with a spring 72, and two ends of the spring 72 are fixedly connected with the bottom wall of the second sieve plate 31 and the top wall of the first partition plate 13 respectively.

In order to reduce the vibration of the second sieve plate 31 caused by nuts and impurities falling into the sliding groove 15, a shielding component 8 for shielding the notch of the sliding groove 15 is arranged in the box body 1, the shielding component 8 comprises a first organ cover 81, two ends of which are fixedly connected with the top wall of the sliding groove 15 and the top wall of the sliding block 71 respectively, and a second organ cover 82, two ends of which are fixedly connected with the bottom wall of the sliding block 71 and the bottom wall of the sliding groove 15 respectively, and the first organ cover 81 and the second organ cover 82 are driven to lift when the sliding block 71 lifts up and down so as to realize shielding of the opening of the sliding groove 15.

The implementation principle of the screening machine for nut production of the embodiment of the application is as follows: nuts enter from the feeding port of the box body 1, are conveyed through the conveying belt 21 and the upper scraping plate 212 of the conveying belt, fall from the first falling port 211, and at the moment, the air blowing cover 51 blows flocculent impurities in the nuts into the chip removal main rail 22, so that preliminary screening of impurities in the nuts is realized.

Nuts drop onto the first screen plate 24, and particulate impurities such as crushed stones drop onto the chip removal sub-rail 32 from the screen holes 241 on the first screen plate 24 and drop into the chip removal main rail 22 from the chip removal sub-rail 32; when the nuts are scraped to the second falling opening 242 by the scraper 212, the nuts fall onto the second sieve plate 31, the second sieve plate 31 further screens the nuts, and the filiform impurities between the nuts on the second sieve plate 31 are hooked by the rotating teeth 62, the rotating teeth 62 rotate the filiform impurities into the chip removal sub-track 32 for cleaning, and the nuts subjected to multistage filtration fall onto the discharge opening 12 at the moment, so that filiform and flocculent impurities in the nuts are removed, and the removal efficiency of the nut impurities is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (9)

1. Screening machine is used in nut production, its characterized in that: the device comprises a box body (1), wherein a feed inlet (11) is formed in the top of the box body (1), a discharge outlet (12) is formed in the bottom of the box body, and a first-stage screening mechanism (2) and a second-stage screening mechanism (3) are arranged in the box body (1) from top to bottom;

the first-stage screening mechanism (2) comprises a conveying belt (21) for conveying nuts, a chip removal main rail (22) arranged in the box body (1) and close to one end of the conveying belt (21), and a fence (23) arranged between the chip removal main rail (22) and the conveying belt (21), wherein a first falling opening (211) for nut blanking is formed between the conveying belt (21) and the fence (23);

a blowing component (5) used for blowing nuts falling from the first falling opening (211) is arranged at the first falling opening (211) in the box body (1).

2. The screening machine for nut production of claim 1, further comprising: the blowing component (5) comprises a blowing cover (51) obliquely arranged on the inner side of the top wall of the box body (1) towards the direction of the cross rail (23), a fan (52) fixedly arranged in the top wall of the box body (1), and an air pipe (53) for conveying air generated at the fan (52) to the position of the air cover;

a first sieve plate (24) is arranged at the lower part of the conveying belt (21), and a second falling opening (242) for nuts to fall down is formed between the end part of the first sieve plate (24) far away from the interception bar (23) and the inner wall of the box body (1); a plurality of scrapers (212) are fixedly connected to the conveyor belt (21) at intervals, and the other end parts of the scrapers (212) are movably propped against the upper plate surface of the first sieve plate (24);

a transmission component (4) for driving the conveying belt (21) to move is arranged in the box body (1).

3. The screening machine for nut production of claim 2, further comprising: the transmission assembly (4) comprises at least two rotating rollers (41) which are rotatably arranged in the box body (1) in a supporting mode, and a first driving piece (42) which is used for driving one of the rotating rollers (41) to rotate, wherein the two rotating rollers (41) are rotatably arranged at two ends of the conveying belt (21).

4. A screening machine for nut production as claimed in claim 3, wherein: the bottom of the box body (1) is vertically fixedly connected with a first partition board (13) and a second partition board (14), and the discharge hole (12) is formed between the first partition board (13) and the second partition board (14);

the secondary screening mechanism (3) comprises a second screen plate (31) which is inclined towards the discharge hole (12) and is arranged in the box body (1) in a lifting and shaking mode, and a removing assembly (6) for removing filiform impurities in nuts sliding above the second screen plate (31);

the end part of the second sieve plate (31) with higher height is positioned below the second falling opening (242), and a driving assembly (7) for driving the second sieve plate (31) to lift and shake when nuts fall is arranged between the box body (1) and the second sieve plate (31).

5. The screening machine for nut production of claim 4, further comprising: the rejecting assembly (6) comprises a rotating rod (61) rotatably erected in the box body (1), rotating teeth (62) fixedly connected to the periphery of the rotating rod (61) and movably abutted to the top wall of the second sieve plate (31), and a second driving piece (63) for driving the rotating rod (61) to rotate is arranged on the box body (1);

the inner wall of the box body (1) is fixedly provided with a chip removal sub-track (32) in the lower part of the first screen plate (24) in an inclined manner, the chip removal sub-track (32) is inclined towards the direction of the chip removal main track (22), the bottom end part of the fence (23) extends to be fixedly connected with the top wall of the second baffle plate (14), and when the rotating rod (61) rotates, the rotating teeth (62) are abutted against the top wall of the second screen plate (31) to rotate to be positioned above the chip removal sub-track (32).

6. The screening machine for nut production of claim 4, further comprising: the driving assembly (7) comprises a sliding block (71) fixedly connected to the end part of the second sieve plate (31), and a spring (72) with two ends fixedly connected between the bottom wall of the sliding block (71) and the box body (1), wherein a sliding groove (15) which is matched with the sliding block (71) in a sliding way is vertically formed in the inner wall of the box body (1), and the end part, close to the partition plate, of the second sieve plate (31) is movably abutted to the top wall of the first partition plate (13);

a shielding component (8) for shielding the notch of the chute (15) is arranged in the box body (1).

7. The screening machine for nut production of claim 6, further comprising: the shielding assembly (8) comprises a first organ cover (81) with two ends fixedly connected with the top wall of the sliding groove (15) and the top wall of the sliding block (71) respectively, and a second organ cover (82) with two ends fixedly connected with the bottom wall of the sliding block (71) and the bottom wall of the sliding groove (15) respectively.

8. The screening machine for nut production of claim 5, further comprising: the bottom of second sieve (31) slides and installs chip removal steamer tray one (131), chip removal steamer tray two (141) are installed in the bottom of chip removal main track (22) slides, chip removal steamer tray one (131) with the lateral wall of chip removal steamer tray two (141) all rigid coupling has handle (1311).

9. The screening machine for nut production of claim 8, further comprising: the first sieve plate (24) and the second sieve plate (31) are provided with sieve holes (241) with the aperture smaller than the minimum particle diameter of nuts, and the sieve holes (241) of the first sieve plate (24) are arranged on the vertical overlapping section of the chip removal sub-track (32).

Images